Process Machinery for the Quarrying, Mining & Minerals · PDF fileProcess Machinery for the...

Don ValleyEngineering

Process Machinery for theQuarrying, Mining & Minerals Industries

Screens Feeders Centrifuges Bulk Handling

Introduction

Contact Details

Contracts

Materials Handling

Mineral Processing and Water Treatment

Bunkers & Bulk Storage

Products

Horizontal Screens

VS De Watering Screen

Banana Screens

Vibrating Feeders

Vibrating Centrifuges

Centrifuge Baskets

Apron Feeders

Belt Conveyors

Scraper Conveyor

Services

Servicing & Repairs

1

3

6

8

10

12

14

16

18

20

22

24

26

28

30

Index

Company Profile

Don Valley Engineering Company Limited (DVE) is a privately owned company whose share capital is still predominantly owned by the families of the initial investors and as such we enjoy the feel of a family based company with a long established tradition.

When the company was established in 1947, its initial market was for repair and general fabrications which, being located in the heart of the Yorkshire Coal Field, inevitably focused on the coal mining industry.

From our modest beginnings we have expanded and evolved over the years, gathering a wealth of experience in all aspects of engineering, in particular the processing and handling of bulk materials and

the building of specialist screening, centrifuging and maltings equipment, making us one of the leading U.K. suppliers in our chosen fields. We therefore enjoy the enviable position of being a supplier to all major producers and users of minerals, iron and steel, coal, sugar and potash etc.

The company today is predominantly staffed by design and contract management engineers who specialise in all aspects of our business to cater for our broad client base. Our size enables us to respond positively to changing market conditions whilst affording us the ability to maintain tight control of overheads and thus produce economic and efficient plant and equipment.

Company Structure

Over the last two years the Company has been re-structuring itself and is now split into four divisions:

Engineering Division

Our traditional business is in full turnkey installations with Design and Manufacture of a diverse range of plant for the Quarrying, Mining, Maltings, Steel, Mineral Processing and Bulk Materials Handling industries.

Machinery Division

We can supply or supply and install our range of machinery which includes Screens, Centrifuges, Vibrating Feeders, Apron Feeders, Conveyors and Wedge Wire products. We offer a full spares and servicing facility for all our machines and plant either in our works or on site.

Construction Division

To include installation, commissioning and servicing of our own or customers plant and equipment. We also offer to carry out decommissioning, relocation and dismantling of plant and equipment. We have the facilities, flexibility and experience to undertake a wide range of works from the smallest maintenance job to the multi million pound contracts.

Cleeve Materials Handling

Our recent acquisition of Cleeve adds to our ability to be able to respond to our customers requirements in the materials handling sector. Cleeve design, manufacture and install a range of plant and equipment which includes Conditioners, Screw Conveyors, Silos, Big Bag Handling Systems, Elevators, Bin Activators, Bulk Loading Chutes and Pneumatic Conveyors.

Introduction

1

Policy Statement

The management of DVE are totally committed to operating a Quality Management System that satisfies the aims and objectives of BS EN ISO 9001:2008 which is defined in its Quality Manual and Quality Procedures. The Company’s stated objectives are to ensure that all plant and equipment supplied by the Company is to the highest standard compatible with its duty to meet the needs and expectations of its customers and in compliance with defined statutory obligations and codes of practice.

The Company recognises that the success of this Policy, and of the business, depends upon the active support of all its staff and sub-contractors through its management commitment to provide adequate resources to meet its objectives effectively.

The Company is committed to continuous improvement of the products and services provided to its clients through maintaining awareness of statutory and regulatory requirements, providing adequately trained and competent staff, and through regular reviews of the Quality Policy and Quality Management System.

Don Valley Engineering Company Limited has been assessed and registered by the National Quality Assurance Limited (NQA) against the provisions of:

Environmental Policy

Environmental Policy Statement

DVE has always maintained an awareness of and carried out its responsibilities with regard to the safety, welfare and care of its employees and the environment.

The company will continue to achieve high standards of operation in all its activities, meeting and where practicable, improving regulatory control or codes of practice.

DVE’s responsibilities to the environment have been approved and will be monitored by the Board of Directors. They in turn will ensure that all company personnel, especially heads of departments and supervisors, are aware of environmental issues and act accordingly.

BS EN ISO 9001 : 2008

Quality PolicyQuality Policy

Policy Statement

The management of DVE are totally committed to operating a Quality Management System that satisfies the aims and objectives of BS EN ISO 9001:2000 which is defined in its Quality Manualand Quality Procedures. The Company’s stated objectives are to ensure that all plant andequipment supplied by the Company is to the highest standard compatible with its duty to meet the needs and expectations of its customers and in compliance with defined statutory obligations and codes of practice.

The Company recognises that the success of this Policy, and of the business, depends upon theactive support of all its staff and sub-contractors through its management commitment to provide adequate resources to meet its objectives effectively.

The Company is committed to continuous improvement on the products and services provided to its clients through maintaining awareness of statutory and regulatory requirements, providing adequately trained and competent staff, and through regular reviews of the Quality Policy and Quality Management System.

Don Valley Engineering Company Limited has been assessed and registered by the NationalQuality Assurance Limited (NQA) against the provisions of:

BS EN ISO 9001 : 2000

Environmental Policy

Environmental Policy Statement

DVE has always maintained an awareness of and carried out its responsibilities with regard to thesafety, welfare and care of its employees and the environment.

The company will continue to achieve high standards of operation in all its activities, meeting and where practicable, improving regulatory control or codes of practice.

DVE’s responsibilities to the environment have been approved and will be monitored by the Boardof Directors. They in turn will ensure that all company personnel, especially heads of departmentsand supervisors, are aware of environmental issues and act accordingly.

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2

SCOTLAND

NORTHERN IRELAND

ISLE OF MAN

WALES

ENGLAND

North Atlantic Ocean

NorthChannel

North Sea

Irish Sea

Dundee

Caernarfon

KirkwallMainland

Stornoway

Inverness

Aberdeen

CuparStirling

EdinburghGlasgow

NewtownSaint Boswells

Dumfries Newcastle upon Tyne

Carlisle Durham

Middlesborough

Northallerton

PrestonWakefield

Kingston upon Hull

Manchester BarnsleyLiverpool

LincolnMold Chester Matlock

Nottingham

Shrewsbury

Stafford

LeicesterNorwich

Birmingham

Llandrindod Wells Worcester WarwickCambridgeNorthampton

BedfordIpswich

Carmarthen GloucesterOxford

AylesburyHertford Chelmsford

SwanseaCardiff

NewportReading

London

Bristol Trowbridge Kingston Maidstone

TauntonWinchester

Truro

ExeterDorchester Newport

Chichester Lewes

Skye

Mull

Islay

Arran

Anglesey

IRELAND

Head Office and Works

Name: Don Valley Engineering Co. Ltd.

Address: Sandall Stones Road Doncaster South Yorkshire DN3 1QR England Tel: +44 (0) 1302 881188Fax: +44 (0) 1302 881000

Email: [email protected] [email protected]

Website: www.donvalleyeng.com

Don Valley Eng. Co. Ltd operational office is based in Doncaster, South Yorkshire, where commercial and site operations are carried out.

Doncaster is well served by the M18 (M1), A1(M) and the A19 roads and is some 15 miles south of the M62 motorway. We are also close to Doncaster Robin Hood and Leeds/Bradford Airports and only one mile away from the East Coast Main Line station.

Contact Details

3

Contact Details Head Office and Works

Name : Don Valley Engineering Co. Ltd

Address : Sandall Stones Road,Doncaster,South Yorkshire,DN3 1QR,ENGLAND.

Telephone : +44(0)1302 881188

Fax : +44(0)1302 881000

Email : General Information: [email protected]: [email protected]

Website : www.donvalleyeng.com

Eng. Co. Ltd. DON VALLEY

SANDALL STONESROAD

Doncaster

Stroud

Don Valley Eng. Co. Ltd operational office is based in Doncaster, South Yorkshire, where commercial and site operations are carried out.

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Doncaster is well served by the M18 (M1), A1(M) and the A19 roads and is some 15 milessouth of the M62 motorway. We are also close to Doncaster Robin Hood and Leeds/Bradford Airports and only one mile away from the East Coast Main Line station from which trains depart hourly to London.

Contact Details

4

Suit 4, Prospect House,

Bath Road Trading Est.,

Stroud, Glos.

GL5 3QF ENGLAND.

Cleeve Materials Handling Ltd.

Telephone ++ 44 (0)1453 750085

Fax ++ 44 (0)1453 766776

E-mail [email protected] Web site www.cleevemh.co.uk MATERIALS HANDLING Ltd.

Contact Details

Cleeve Office

Name : Cleeve Materials Handling Ltd

Address : Unit 4, Prospect House,

Bath Road Trading Estate,

Stroud, Gloucestershire,

GL5 3QF

ENGLAND.

Telephone : +44 1453 750085

Fax : +44 1453 766776

E-mail : [email protected]

Web : www.cleevemh.co.uk

Location

MATERIALS HANDLING Ltd.

BATH ROAD (A46)

CAR PARK

BATH ROAD (A46)

DUDBRIDGE ROAD (A46)

CAR PARK

ENTRANCE TO OFFICES

Cleeve are situated in the middle of the Cotswolds on the Bath Road Trading Estate in Stroud,

Gloucestershire.

Cleeve’s offices at Stroud are approx. 5 miles from function 13 of the M5, close to the

intersection of the A419 and A46. From Junction 13 of the M5 follow the A419 East towards

Stroud and at the intersection with the A46 turn South for approx 600yards and the Bath Road

Trading Estate is on your right.

MATERIALS HANDLING LTD.

Cleeve are situated in the middle of the Cotswolds on the Bath Road Trading Estate in Stroud, Gloucestershire.

Cleeve’s offices at Stroud are approx. 5 miles from Junction 13 of the M5, close to the intersection of the A419 and A46. From Junction 13 of the M5 follow the A419 East towards Stroud and at the intersection with the A46 turn South for approx 600yards and the Bath Road Trading Estate is on your right.

Name: Cleeve Materials Handling Ltd

Address: Suite 4, Prospect House Bath Road Trading Estate Stroud, Gloucestershire GL5 3QF England Tel: +44 (0) 1453 750085Fax: +44 (0) 1453 766776

Email: [email protected]

Website: www.cleevemh.co.uk

SCOTLAND

NORTHERN IRELAND

ISLE OF MAN

WALES

ENGLAND

North Atlantic Ocean

NorthChannel

North Sea

Irish Sea

Dundee

Caernarfon

KirkwallMainland

Stornoway

Inverness

Aberdeen

CuparStirling

EdinburghGlasgow

NewtownSaint Boswells

Dumfries Newcastle upon Tyne

Carlisle Durham

Middlesborough

Northallerton

PrestonWakefield

Kingston upon Hull

Manchester BarnsleyLiverpool

LincolnMold Chester Matlock

Nottingham

Shrewsbury

Stafford

LeicesterNorwich

Birmingham

Llandrindod Wells Worcester WarwickCambridgeNorthampton

BedfordIpswich

Carmarthen GloucesterOxford

AylesburyHertford Chelmsford

SwanseaCardiff

NewportReading

London

Bristol Trowbridge Kingston Maidstone

TauntonWinchester

Truro

ExeterDorchester Newport

Chichester Lewes

Skye

Mull

Islay

Arran

Anglesey

IRELAND

MATERIALS HANDLING LTD.MATERIALS HANDLING LTD.MATERIALS HANDLING LTD.

Head Office and Works

Name: Don Valley Engineering Construction Ltd

Address: Sandall Stones Road Doncaster South Yorkshire DN3 1QR England Tel: +44 (0) 1302 881188Fax: +44 (0) 1302 881000



Agencies and Associates

Name: Liranco Foreign Trade Ltd

Address: Harwix Building 7 Ha’ Arad Street Ramat Ha’ Chayal Tel Aviv, 69710 Israel Tel: +972 37 662666Fax: +972 37 662662


Website: www.liranco.com

Name: MTM Makina Ticaret Mumessillik Musavirlik Limited Sirketi

Address: Ataturk Bulvari 199-A/42 Kavaklidere 06680 Ankara Turkey Tel: +90 312 476 8889Fax: +90 312 427 1121


Website: www.mtmmakina.com.tr

Name: IMMSA

Address: Calle Cuesta, Nº10 2ºCENTRO 28220 Majadahonda Madrid Spain Tel: +34 91 634 7101Fax: +34 91 634 7102


Website: www.immsa.net

Associated Companies

5

Basic Description of Plant The turnkey project, which Don Valley Engineering undertook for a major quarry in the UK, called for the installation of a new 4000tph primary crusher to replace the existing unit which at that time was nearing the end of its useful life.

The project consisted of:- A reception and stock out facility comprising, a new crusher house, a conveying system to a new primary screen house and conveyors to the plus 90mm and minus 90mm stockpiles. A reclaim facility and conveying systems from each of the plus and minus 90mm stock piles to transfer the stockpiled material to the existing crusher house where they are handled by existing equipment to produce the various products required.

System Description Minus 1000mm carboniferous limestone is discharged from dump trucks into a 60” Gyratory Crusher via a steel top box. Material is crushed to minus 254mm and discharged into a surge hopper.

Minus 254mm is extracted from the surge hopper via an apron plate feeder at the rate of 4000tph and discharged via conveyor.

This conveyor elevates the minus 254mm material at the rate of 4000tph to the Primary Screenhouse where it is discharged onto a grizzly screen.

The grizzly screen separates at minus 90mm which is discharged via an underpan and conveyor. Plus 90mm oversize material is discharged via an oversize chute and conveyor.

Plus 90 mm Route fromPrimary ScreenhousePlus 90mm material is conveyed at the rate of 3000tph to a Junction House where it is discharged onto Radial Stacker feed conveyor.

The radial boom stacker elevates the plus 90mm at the rate of 3000tph and discharges direct onto a 10,000 tonne stockpile.

Material is extracted from the 10,000 tonne stockpile via 4 No. vibratory feeders and is discharged onto a conveying system at the rate of 2200tph to the secondary screen to separate the minus 90mm which is discharged into a minus 90mm bunker. Oversize material, minus 54mm plus 90mm, is discharged into a bunker of approximately 500 tonne capacity.

Material is extracted from the minus 254mm Bunker via existing reciprocating feeders onto existing conveyors.

Minus 90 mm Material Route from Primary ScreenhouseMinus 90mm material is conveyed at the rate of 3000tph and discharges via conveyor to a circular stacker/reclaimer. The stacker / reclaimer conveyor discharges onto a minus 90mm 25,000 tonne stockpile.

The stacker/reclaimer reclaims material from the stockpile via a hopper onto a conveying system. Material can also be extracted via an emergency reclaim hopper and reciprocating feeder.

The minus 90mm material is conveyed at the rate of 1100tph via a series of conveyors and discharged directly into a minus 90mm bunker of approximately 500 tonne capacity.

Material is extracted from the minus 90mm bunker via a reciprocating feeder onto an existing conveyor system.

6

Materials HandlingA Case Study

7

Circular Stacker/Reclaimer and Feed conveyor Capacity 3000tph with 25,000 tonne stockpile

Hopper Discharge points for sized stone

60’’ Gyratory Crusher reception house for minus 1000mm limestone.

Radial Stacker and Feed Conveyor Maximum Capacity 3000tph Minus 254mm limestone

Quarry to Plant transfer conveyors maximum Capacity 2000tph minus 254mm limestone and

1100tph minus 90mm limestone

Limestone is crushed at a rate of 250tphvia a secondary crusher and screened to give

six sizes via three Don Valley Screens.

Mineral Processing& Water Treatment

8

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Mineral Processing & Water Treatment

Plant Specification Feed Rate to Plant – 1000 t.p.h. Material to Plant – minus 100 mm Raw Coal Washing System – Triple Stream Larcodem Dense

Medium Plant (3 x 270 t.p.h.) Washing -100mm +2mm fraction.

Larcodem Capacity – 810 t.p.h. Fine Coal Treatment – Up to 250 t.p.h. of minus

2 mm material treated in atwo stage HydrosizerUpward Current Cleaner, designed to recover the clean coal fines.

Untreated Fines – Up to 200 t.p.h. of minus10 mm raw coal for blending.

Products from Plant – Up to 500 t.p.h. of large

270 t.ph. Larcodem Vessel

Coal Preparation Plant under construction

Don Valley HSG 1000 Centrifuges

600 t.p.h. COAL PREPARATION PLANT. Feed rate to plant 600 t.p.h., Material -100mm R.O.M.

Dense medium separation utilising twin stream Larcodem separators rated at 540 t.p.h.

1000 t.p.h. COAL PREPARATION PLANT.

Feed rate to plant 1000 t.p.h., Material -100mmR.O.M.

Dense medium separation utilising triple stream Larcodem separators rated at 810 t.p.h.

(270 t.ph. per Larcodem)

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1000 t.p.h. COALPREPARATION PLANT.

Feed rate to plant 1000 t.p.h., Material -100mm R.O.M.



600 t.p.h. COAL PREPARATION PLANT.Feed rate to plant 600 t.p.h., Material -100mm R.O.M.


Plant Specification

Feed Rate to Plant – 1000 t.p.h.Material to Plant – minus 100 mm Raw CoalWashing System – Triple Stream Larcodem Dense Medium Plant (3 x 270 t.p.h.) Washing -100mm +2mm fraction.Larcodem Capacity – 810 t.p.h.Fine Coal Treatment – Up to 250 t.p.h. of minus 2mm material treated in a two stage Hydrosizer Upward Current Cleaner, designed to recover the clean coal fines.Untreated Fines – Up to 200 t.p.h. of minus 10 mm raw coal for blending.Products from Plant – Up to 500 t.p.h.

Don Valley HSG1000 Centrifuges

270 t.p.h.Larcodem Vessel


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Limestone Washing Plant during construction

MINE WASTE HANDLING SYSTEM.Pumping -50mm Solids and Tailings over a

distance of 2 km.

Two No. thickeners to handle fines treatmentfrom Limestone Washing Plant.

LIMESTONE WASHING PLANT 1000 t.p.h. Limestone Washing Plant treating

minus 300 mm limestone through twin scrubber barrels.

FILTER PRESS HOUSE. Used for waste water clarification and the

separation of Washery Tailings ~ 9 ~



distance of 2 km.





separation of Washery Tailings

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distance of 2 km.






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distance of 2 km.





separation of Washery Tailings ~ 9 ~



distance of 2 km.






9 ~ 9 ~



distance of 2 km.






FILTER PRESS HOUSEUsed for waste clarification and the separation

of Washery Tailings

MINE WASTE HANDLING SYSTEMPumping - 50mm Solids and Tailings over a

distance of 2km.


Two No. thickeners to handle fines treatmentfrom Limestone Washing Plant

Tailing Treatment Plant at a UK Colliery

LIMESTONE WASHING PLANT1000 t.p.h. Limestone Washing Plant treating minus 300 mm limestone through twin scrubber barrels.

Bunkers & Bulk Storage

10

All our Bunkers and Bulk Storage solutions are individually designed to suit the customers project requirements and needs. We know from experience that each product requires a different approach to obtain the optimum return in value for money and long term cost of ownership. To achieve this our engineers use their experience and knowledge to design plant which utilises the latest technology and materials to give long term benefits to our customers. We have experience in designing Rail, Lorry, Barge/Ship Loading & Unloading equipment and transfer of materials ranging from grain to sand to aggregates and coal.

As part of the Don Valley Group, Cleeve Materials Handling can provide Bin Activators for any Bunker or Hopper outlet. Our in-house Construction Division will ensure that all installation work is carried out safely and to the highest quality. All our Supervisors and Site Managers have achieved the ‘IOSH Health & Safety’ certificate and all site operatives hold a passport to safety qualification.

Lorry Loading Bunkers

Coal Handling at a Cement Works(Showing Blending & Storage Silos)

P.F.A. Blending & Storage Bunkers

200 Tonnes CapacityLorry Loading Bunker

Close Up View of Hydraulically Operated

Clamshell Doors

Close Up View of Tripper Loading

Conveyor

2000 Tonnes Capacity Rapid Wagon Loading Bunker



200 Tonnes Capacity Lorry Loading Bunker

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Clamshell Doors


Conveyor





~ 11 ~


Clamshell Doors


Conveyor





~ 11 ~


Clamshell Doors


Conveyor





~ 11 ~ 11

Hydraulically Operated Clamshell Doors

Tripper Loading Conveyor

2000 Tonnes Capacity Rapid WagonLoading Bunker

Horizontal Screens

12

Horizontal Linear Motion Screen

In the never ending drive to increase market share, quarries are constantly looking for ways to reduce production costs of minerals by building ever larger quarries. Higher tonnages require larger machines, but this is only part of the answer because any kind of stoppage then results in greater tonnage lost for every hour the plant is stood.

Over the years DVE has been meeting the requirements of an ever changing minerals industry by designing and building ever larger screening machines to cater for the ever increasing tonnages being produced. We have supplied the front line machines to virtually all high capacity plants built in recent years. In doing so, we have created an unequalled range of bespoke machines for all manner of applications, gaining a wealth of experience in the design of bunker tops that we believe should be considered for all future installations.

In any minerals handling plant two of the most problematic areas that cause the greatest hardship and down time are transfer points between equipment where spillage, dust emission and build up occur and the drive mechanisms to the various machines where electrical or mechanical failings render the machine inoperable. Whilst we will never be able to achieve the transfer and drive free plant, logic dictates that the nearer we get to achieving this, the more reliable a plant will be. Therefore any reduction in the number of drives and transfer points is a step in the right direction.

In the latest plant designs, the bunker top arrangement attempts to employ this philosophy to the full by utilising the minimum number of machines to achieve the mineral sizing required with transfers being chute work between machines that can be enclosed and sealed, making large numbers of screens fed by a multitude of conveyors and transfer points a thing of the past, DVE’s latest screens have rendered such designs obsolete.

Don Valley Engineering Co. Ltd.

Telephone + 44 (0)1302 881188

Fax + 44 (0)1302 881000

E-mail [email protected] Web site www.donvalleyeng.com

Sandall Stones Road

Doncaster

South Yorkshire

DN3 1QR ENGLAND.

Horizontal Screens


In the never ending drive to increase market share,

quarries are constantly looking for ways to reduce

production costs of minerals by building ever larger

quarries. Higher tonnages require larger machines,

but this is only part of the answer because any kind

of stoppage then results in greater tonnage lost for

every hour the plant is stood.

Over the years DVE has been meeting the

requirements of an ever changing minerals industry

by designing and building ever larger screening

machines to cater for the ever increasing tonnages

being produced. We have supplied the front line

machines to virtually all high capacity plants built

in recent years. In doing so, we have created an

unequalled range of bespoke machines for all

manner of applications, gaining a wealth of

experience in the design of bunker tops that we

believe should be considered for all future

installations.

In any minerals handling plant two of the most

problematic areas that cause the greatest hardship

and down time are transfer points between

equipment where spillage, dust emission and build

up occur and the drive mechanisms to the various

machines where electrical or mechanical failings

render the machine inoperable. Whilst we will

never be able to achieve the transfer and drive free

plant, logic dictates that the nearer we get to

achieving this, the more reliable a plant will be.

Therefore any reduction in the number of drives

and transfer points is a step in the right direction.

In the latest plant designs, the bunker top arrangement attempts to employ this philosophy to the full by

utilising the minimum number of machines to achieve the mineral sizing required with transfers being chute

work between machines that can be enclosed and sealed, making large numbers of screens fed by a

multitude of conveyors and transfer points a thing of the past, DVE’s latest screens have rendered such

designs obsolete.


Telephone + 44 (0)1302 881188

Fax + 44 (0)1302 881000


Sandall Stones Road

Doncaster

South Yorkshire

DN3 1QR ENGLAND.

Horizontal Screens


In the never ending drive to increase market share,

quarries are constantly looking for ways to reduce

production costs of minerals by building ever larger

quarries. Higher tonnages require larger machines,

but this is only part of the answer because any kind

of stoppage then results in greater tonnage lost for

every hour the plant is stood.

Over the years DVE has been meeting the

requirements of an ever changing minerals industry

by designing and building ever larger screening

machines to cater for the ever increasing tonnages

being produced. We have supplied the front line

machines to virtually all high capacity plants built

in recent years. In doing so, we have created an

unequalled range of bespoke machines for all

manner of applications, gaining a wealth of

experience in the design of bunker tops that we

believe should be considered for all future

installations.

In any minerals handling plant two of the most

problematic areas that cause the greatest hardship

and down time are transfer points between

equipment where spillage, dust emission and build

up occur and the drive mechanisms to the various

machines where electrical or mechanical failings

render the machine inoperable. Whilst we will

never be able to achieve the transfer and drive free

plant, logic dictates that the nearer we get to

achieving this, the more reliable a plant will be.

Therefore any reduction in the number of drives

and transfer points is a step in the right direction.

In the latest plant designs, the bunker top arrangement attempts to employ this philosophy to the full by

utilising the minimum number of machines to achieve the mineral sizing required with transfers being chute

work between machines that can be enclosed and sealed, making large numbers of screens fed by a

multitude of conveyors and transfer points a thing of the past, DVE’s latest screens have rendered such

designs obsolete.

Heavy Duty Screens for Heavy Duty ApplicationsDesigned for all Screening ApplicationsSingle or Multi Deck Configurations Available

Triple deck THG screen during various stages of assembly in our Doncaster Workshops

Linear Motion Screening is highly efficient with minimum attrition and prevention of pegging.

SCREEN DATA Effective Width - 1200 to 4000 mmEffective Length - 3000 to 10500 mmScreen Area - 4m² to 44 m² Vibratory Motion - LinearAmplitude - Up to 15 mm Frequency / Speed - 850 to 950 cycles / minAngle of Throw - To suit application Inclination - Minus 5° to Plus 20° Flow Speed - 0.3 to 0.5 m/sCapacity - Up to 3000 t.p.h.

From the following data our application engineers will give a fully detailed specification of the screenrequire :-

1. Size analysis of feed material2. Feed rate (t.p.h.) 3. Type of material4. Separation sizes 5. Moisture content

Heavy Duty Screens for Heavy Duty Applications Designed for all Screening Applications

Single or Multi Deck Configurations Available

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~ 13 ~

13


Telephone + 44 (0)1302 881188

Fax + 44 (0)1302 881000


Sandall Stones Road

Doncaster

South Yorkshire

DN3 1QR ENGLAND.

Heavy Duty Screens for Heavy Duty Applications

Designed for all Screening Applications


SCREEN DATA

Effective Width - 1200 to 4000 mm

Effective Length - 3000 to 10500 mm

Screen Area - 4m to 44 m

Vibratory Motion - Linear

Amplitude - Up to 15 mm

Frequency / Speed - 850 to 950 cycles / min

Angle of Throw - To suit application

Inclination - Minus 5° to Plus 20°

Flow Speed - 0.3 to 0.5 m/s

Capacity - Up to 3000 t.p.h.

From the following data our application engineers

will give a fully detailed specification of the screen

require :-

1. Size analysis of feed material

2. Feed rate (t.p.h.)

3. Type of material

4. Separation sizes

5. Moisture content



SCREEN DATAEffective Width - 1200 to 4000 mmEffective Length - 3000 to 10500 mmScreen Area - 4m² to 44 m²Vibratory Motion - LinearAmplitude - Up to 15 mmFrequency / Speed - 850 to 950 cycles / minAngle of Throw - To suit applicationInclination - Minus 5° to Plus 20°Flow Speed - 0.3 to 0.5 m/sCapacity - Up to 3000 t.p.h.From the following data our application engineers will give a fully detailed specification of the screen required:-

1. Size analysis of feed material2. Feed rate (t.p.h.)3. Type of material4. Separation sizes5. Moisture content

Triple deck THG screen during various stages of assembly in our Doncaster WorkshopsLinear Motion Screening is highly efficient with minimum attrition and prevention of pegging.

VS De Watering Screen

14

Ease of maintenance has been designed into the screen to give maximum operating time. The main features include:-

• Quickandeasyalterationofthescreendeckanglewhichallowsfinetuningtobecarriedouttomaximise output and efficiency.• Theamplitudeofthescreencanbeeasilyadjustedtoensuretheoptimalefficiencyisachieved.• TheVSscreenbenefitsfromtheuseofapolyurethanedecksystemwhichisextremelysecurewhilstin use but easily changed to suit varying conditions.• ThescreenframeandbodyareallconnectedusingaHuckboltsystemtominimisetheneedfor welding.

DVE De Watering screens come in a range of six sizes, designed specifically for the removal of free moisture.

The screens comprise of a 45° sloping back section with aperture slots across the direction of flow.The incoming saturated material is uniformly fed across this area to give primary drainage. The main deck of the screen can have a variable angle to suit the de watering requirement and again has aperture slots across the direction of flow. The screen can be fitted with either polyurethane or stainless steel wedge wire panels. The screens are excited by means of two vibrating motors operating at either 980 or 1460 r.p.m. which induce linear motion into the screen bed.

Our De Watering screens are robustly designed and constructed to withstand the day to day rigours of site use. They offer the ideal solution for sand washing and mineral processing industries.

The screen receives a high percentage of water-saturated fine material which due to the linear action of the drive and the inclination of the screen forms a pool at the infeed end from which the material is driven forward forming a compact cake which acts as a filtration bed further de watering the material and minimising losses to the filtrate liquid.

The dry cake can then be discharged onto a conveyor and stockpiled without any further run off or water pools providing a transportable product that can be sold in a short period of time.

DVE technical staff can assist you with your selection of screen once the following data has been received:

• Typeofmaterialtobescreened.• Specificgravityofmaterial,t/m.• Dryt.p.hor.m³/hrofslurry.• FeedslurryRDorw/wsolids.• Bulkdensityofthematerialtobe screened.• Sizeanalysisofthefeedstock.

15

Screen Size DIM “A” mm DIM “B” mm Capacity t.p.h

VS 9/36.5/41.4 930 1500 90

VS 12/36.5/41.4 1230 1800 120

VS 15/36.5/41.4 1530 2100 150

VS 18/36.5/41.4 1830 2400 180

VS 21/36.5/41.4 2130 2700 210

VS 24/36.5/41.4 2430 3000 240

Screen Capacity based on 100 t.p.h./m width with a Deck Aperture of 1mm

Banana Screen

16

Banana Linear Motion Screen

DVE Banana Screens employ the latest technology in multi angle machines to achieve exceptional throughputs for relatively small screening areas. The screens include a number of different screening angles with a wide variety of deck types and apertures to meet the particular process requirements.

The screens are designed to accept most types of deck system including polyurethane, punched steel plate and wedge wire.

Screens vary in size from 1600mm wide up to 3400mm wide with masses up to 28 tonne. The most common size is 3000mm wide x 6300mm long.

Banana Screen Banana Linear Motion Screen

DVE Banana Screens employ the latest technology in multi angle machines which are capable ofachieving exceptional throughputs for relatively small screening areas. The screens include a number of different screening angles with a wide variety of deck types and apertures to meet the particular process requirements.



Benefits of Multi Angle Screening are:-

• Improved efficiency in sizing material due to formation of a thin bed depth. • Lower water consumption, with wet screening. • Lower energy requirement, for an equivalent throughput, than with a conventional flat deck

screen.• Higher feed rates for an equivalent deck area.

~ 14 ~

Banana Screen Banana Linear Motion Screen

DVE Banana Screens employ the latest technology in multi angle machines which are capable ofachieving exceptional throughputs for relatively small screening areas. The screens include a number of different screening angles with a wide variety of deck types and apertures to meet the particular process requirements.



Benefits of Multi Angle Screening are:-

• Improved efficiency in sizing material due to formation of a thin bed depth. • Lower water consumption, with wet screening. • Lower energy requirement, for an equivalent throughput, than with a conventional flat deck

screen.• Higher feed rates for an equivalent deck area.

~ 14 ~

Benefits of Multi Angle Screening are:-• Improvedefficiencyinsizingmaterialdueto formation of a thin bed depth.• Lowerwaterconsumptionwithwetscreening.

• Lowerenergyrequirement,foranequivalent throughput, than with a conventional flat deck screen.• Higherfeedratesforanequivalentdeckarea.

Heavy Duty Screens for Heavy Duty ApplicationsDesigned for all Screening Applications

17

SCREEN DATA

Effective Width - 1600 to 4000 mmEffective Length - 3800 to 10500 mmScreen Area - 6 to 32 m²Vibratory Motion - LinearAmplitude - Up to 15 mmFrequency / Speed - 850 to 950 cycles / minAngle of Throw - To suit applicationInclination - To suit application, typically 30°, 20°& 5°Flow Speed - 2.5m/s to 0.5 m/sCapacity - Depending on material and aperture size up to 4000 t.p.h.

From the following data our applications engineers will give a fully detailed specification of the screen required.

1. Size analysis of feed material2. Feed rate (t.p.h.)3. Type of material4. Separation sizes5. Moisture content

Typical flow over a Multi Slope Banana ScreenLinear Motion Screening is highly efficient with minimum attrition and prevention of pegging

The Banana Screen benefits from utilising linear motion combined with high vibration amplitude and high acceleration over the screen deck. This

makes the Banana Screen suitable for a variety of applications. These combined features also reduce the possibility of blinding and pegging.


SCREEN DATA

Effective Width - 1600 to 4000 mmEffective Length - 3800 to 10500 mmScreen Area - 6 to 32 m²Vibratory Motion - LinearAmplitude - Up to 15 mm Frequency / Speed - 850 to 950 cycles / minAngle of Throw - To suit application Inclination - To suit application, typically 30˚, 20˚& 5˚Flow Speed - 2.5m/s to 0.5 m/sCapacity - Depending on material and aperture size up to 4000 t.p.h.

From the following data our applications engineers will give a fully detailed specification ofthe screen required.


The Banana Screen benefits from utilising linear motion combined with high vibration amplitudeand high acceleration over the screen deck. This makes the Banana Screen suitable for a variety of applications. These combined features also reduce the possibility of blinding and pegging.

5° Angle @ 0.5m/s

20° Angle @ 1.5m/s30° Angle @ 2.5m/s

Typical flow over a Multi Slope Banana Screen

Linear Motion Screening is highly efficient with minimum attrition and prevention of pegging

~ 15 ~

Vibrating Feeders

18

Don Valley Vibrating Feeders

DVE can supply a range of vibrating feeders, capacities ranging from 100 t.p.h. to 2500 t.p.h. Vibrating feeders can be used for transferring bulk materials from hoppers, bins, crushers, etc. in a variety of applications including chemical, mining, foundry, quarrying and iron and steel industries.

They can either be floor mounted or suspended from cables with steel or rubber isolation springs, and designed to suit layout and access requirements.

Features of Vibratory Feeder:

• Smoothvibration• Reliableoperation• Longservicelife• Lownoise• Lowpowerconsumption

• Easytoadjust• Simplestructure• Easytoinstall• Simplemaintenance.

Vibrating Feeders

• Easy to adjust• Simple structure • Easy to install• Simple maintenance.

Features of Vibratory Feeder:

• Smooth vibration • Reliable operation • Long service life • Low noise • Low power consumption


DVE can supply a range of vibrating feeders, capacities ranging from 100 t.p.h. to 2500 t.p.h. Vibrating feeders can be used for transferring bulk materials from hoppers, bins, crushers, etc. in a variety of applications including chemical, mining, foundry, quarrying and iron and steel industries.

They can either be floor mounted or suspended from cables with steel or rubber isolation springs, and designed to suit layout and access requirements.

Vibrating Feeder Handling 1100 t.p.h Minus 250mm Granite.

~ 16 ~

Vibrating Feeder Handling 1100 t.p.h Minus 250mm Granite.


19

Features

• Ruggedconstructionforlonglife.• Minimummovingpartsgivinglowmaintenance.• Maximisestheuseofconstantsforcomplete reliability.• Softervibrationforminimalnoise.• IP65standardmotors.• SupportedbyDVEguarantee.

Applications

• Sand&Gravel• Aggregate• Coal• Stone• Steel• Castings• Glass• Wood• Food• AnimalFeeds

High capacity feeders for controlling flow of bulk materials from storage piles, bunkers and bins rated at up to 2500 t.p.h. The two vibrator motors rotate in opposite directions to create a mono directional vibrating motion which is transmitted directly to the trough at a carefully calculated working angle.

The electromechanical feeder comprises of:-• Achannelshapedcarcassassemblyfixedonto a support, designed to withstand the stress caused by the vibration motion.• Asuspensionsystem.• Twovibratormotorsfixedtothechute,each with drive shafts that have adjustable unbalanced weights.• Rotationspeed960rpmor1450rpm• Capacitytosuitcustomerrequirements.

The magnitude of the vibration is made by adjusting the unbalanced weights.

The feeders require very little maintenance and are capable of operating under difficult or arduous environmental conditions.

Special Designs

As well as the standard range of feeders our design team can offer special bespoke units or provide specialist advice on equipment selection.

~ 17 ~


Features

• Rugged construction for long life. • Minimum moving parts giving low

maintenance.• Maximises the use of constants for

complete reliability. • Softer vibration for minimal noise. • IP 65 standard motors.• Supported by DVE guarantee.

Applications

• Sand & Gravel • Aggregate• Coal• Stone• Steel• Castings• Glass• Wood• Food• Animal Feeds


High capacity feeders for controlling flow of bulk materials from storage piles, bunkers and bins rated at up to 2500 t.p.h. The two vibrator motors rotate in opposite directions to create a mono directional vibrating motion which is transmitted directly to the trough at a carefully calculated working angle.

The electromechanical feeder comprises of:-

• A channel shaped carcass assembly fixed onto a support, designed to withstand the stress caused by the vibration motion.

• A suspension system.• Two vibrator motors fixed to the chute,

each with drive shafts that have adjustable unbalanced weights.

• Rotation speed 960 rpm or 1450 rpm • Capacity to suit customer requirements.

The magnitude of the vibration is made by adjusting the unbalanced weights.

The feeders require very little maintenance and are capable of operating under difficult or arduous environmental conditions.

Special Designs

As well as the standard range of feeders our design team can offer special bespoke units or provide specialist advice on equipment selection.

Vibrating Feeder Handling 1100 tph Minus 250mm Granite Vibrating Feeder Handling 1100 tph

Minus 250mm Granite

Vibrating Centrifuge

Continuous separation of solids from liquids

Proven dewatering ability

Full dynamic balancing

Overload protected self cleaning system

Design and installation

Capacities up to 300 t.p.h.

Arranged for easy access and maintenance

Lubrication failure cut out

Full service parts and support

Vibrating Centrifuge Continuous separation of solids from liquids Capacities up to 300 t.p.h.

Proven dewatering ability Arranged for easy access and maintenance

Full dynamic balancing Lubrication failure cut out

Overload protected self cleaning system Full service parts and support

Design and installation

~ 18~

Description of Operation

Wet solids are presentedcontinuously to the smalldiameter of a tapered wedge wire basket via the feed inlet.Solids are retained in therotating basket and horizontal vibrations assist in transporting them to the large diameter open end. Water passes through the basket due to the centrifugalforces up to 80G.

Description of Operation

Wet solids are presented continuously to the small diameter of a tapered wedge wire basket via the feed inlet. Solids are retained in the rotating basket and horizontal vibrations assist in transporting them to the large diameter open end. Water passes through the basket due to centrifugal forces up to 80G.

Recent developments of our machines have shown economic savings in the reduction of moisture of a variety of minerals.

Fully self contained units requiring only support structures and feed and discharge chute work, all of which can be included in a “leave it all to us” installation and commissioning

Our applications engineers will be able to give a fully detailed specification on receipt of the following information :-

1. Size analysis of feed material.2. Feed rate (tph).3. Separation size.4. Moisture content of feed material.5. Position of effluent feed.6. Required moisture content of product.

~ 19 ~

Recent developments of our machines haveshown economic savings in the reduction of moisture of a variety of minerals.

Fully self contained units requiring only support structures and feed and discharge chute work, all of which can be included in a “leaveit all to us” installation and commissioning

Our applications engineers will be able to give a fully detailed specification on supply of the following information :-

1. Size analysis of feed material.2. Feed rate (tph).3. Separation size. 4. Moisture content of feed material.5. Position of effluent feed. 6. Required moisture content of product.

DON VALLEY CENTRIFUGES are capable of accepting a feed up to 50 mm top size and in order to obtain best dewatering may require additional water to feed material prior to entryto the centrifuge chamber.

TYPE HSL500

HSL600

HSL750

HSG1000

HSG1100

HSG1200

HSG1300

HSG1400

Typical Feed Capacities tph 15/20 20/30 40/50 50/100 100/150 150/200 200/250 250/300

Drive Motor kw 7.5 7.5 7.5 22 30 37 55 55

Length mm 1500 1500 1500 2260 2425 2425 2900 2900

Width mm 1373 1373 1480 1880 2010 2035 2225 2225

Height mm 1329 1329 1412 1705 1845 1945 2090 2115

Weight approx kg 1100 1100 1500 3600 4100 4530 7000 7500 ~ 19 ~






TYPE HSL500

HSL600

HSL750

HSG1000

HSG1100

HSG1200

HSG1300

HSG1400


Drive Motor kw 7.5 7.5 7.5 22 30 37 55 55

Length mm 1500 1500 1500 2260 2425 2425 2900 2900

Width mm 1373 1373 1480 1880 2010 2035 2225 2225

Height mm 1329 1329 1412 1705 1845 1945 2090 2115

Weight approx kg 1100 1100 1500 3600 4100 4530 7000 7500

DON VALLEY CENTRIFUGES are capable of accepting a feed up to 50 mm top size and in order to obtain best dewatering may require additional water to feed material prior to entry to the centrifuge chamber.

~ 19 ~






TYPE HSL500

HSL600

HSL750

HSG1000

HSG1100

HSG1200

HSG1300

HSG1400


Drive Motor kw 7.5 7.5 7.5 22 30 37 55 55

Length mm 1500 1500 1500 2260 2425 2425 2900 2900

Width mm 1373 1373 1480 1880 2010 2035 2225 2225

Height mm 1329 1329 1412 1705 1845 1945 2090 2115

Weight approx kg 1100 1100 1500 3600 4100 4530 7000 7500

Centrifuge Baskets

22

Centrifuge Baskets

~ 20~

DON VALLEY CENTRIFUGE BASKETS :-

• Are manufactured fromWelded Wedge Wire

• GiveEfficient Dewatering

• Are capable of handlingHigh Capacities

• Are available for most makes of Centrifuge

• Are competitivelyPriced

Centrifuge Baskets

~ 20~







Centrifuge Baskets

~ 20~







DON VALLEY CENTRIFUGE BASKETS:-

• Aremanufacturedfrom Welded Wedge Wire

• Give Efficient Dewatering

• Arecapableofhandling High Capacities

• Areavailableformostmakesof Centrifuge

• Arecompetitively Priced

23

Don Valley centrifuge baskets are manufactured to suit horizontal and vertical centrifuges of both vibrating and scroll types.

Centrifuges utilise rotational and / or axial forces to achieve a high degree of moisture removal and throughput with minimal space requirements.

The unique construction features of the Don Valley centrifuge baskets ensure that large open areas for maximum dewatering capacity are maintained while providing long life. Unrestricted passage of liquid, with the minimum of blinding or clogging, is maintained throughout the life of the basket by using screen panels of welded wedge wire. This enables any process fluids and undersize material particles to pass freely through.

Product Range

Don Valley baskets are available to suit most types of centrifuges. A large range of baskets are available from stock.Don Valley maintains facilities to manufacture centrifuge baskets to any design.

Construction Materials

Standard construction consists of grade 304 stainless steel wedge wire screen panels with carbon steel flanges. All stainless steel construction can be accommodated on request and special alloy materials can be utilised for severely corrosive environments.

~ 21 ~

Centrifuge BasketsDon Valley centrifuge baskets are manufactured to suit horizontal and verticalcentrifuges of both vibrating and scroll types.

Centrifuges utilise rotational and / or axial forces to achieve a high degree of moistureremoval and throughput with minimal space requirements.


Product RangeDon Valley baskets are available to suit mosttypes of centrifuges. A large range of baskets is vailable from stock.a

Don Valley maintains facilities to manufactureentrifuge baskets to any standard.c

Construction Materials Standard construction consists of type 304 stainless steel wedge wire screen panels withcarbon steel flanges. All stainless steel construction can be accommodated on requestand special alloy materials can be utilised forseverely corrosive environments.

Non clogging slot

Wedge wire

Max. open area

Fully weldedconstruction

Support / backingbar

Typical arrangement of wedge wire material

~ 21 ~







Non clogging slot

Wedge wire

Max. open area




~ 21 ~







Non clogging slot

Wedge wire

Max. open area




Typical section through a horizontal vibrating centrifuge


Centrifuge Baskets

Apron Feeders

24

Apron Feeders

DVE Apron Feeders are used for volumetric feeding of material from bunkers, bins or stockpiles. They can beeither fixed or variable speed to suit the application.

The machines are designed to operate continuously inarduous conditions with high impact loads and coarse and abrasive materials.

2000 T.P.H. Coal Apron or 4000 T.P.H. Iron Ore Feeder Pre Assembled in DVE’s Doncaster Works

As well as our standard Apron Feeder designs, 1000mm to 2500mm wide, DVE produce a range of bespoke Apron Feeders to suit special applications. Units can be either positively or negatively inclined.

Our Apron feeders consist of two strands of heavy duty chain fitted into cast steel pans. The chain issupported on standard chain carrying rollers and full face plain rollers on the feeders return sides. The feeders are designed with side frames fabricated in rolled steel sections, built to withstand high-impact loads, and arduous conditions.

Applications include coal, coke, iron ore, stone, limestone, sand and gravel.

~ 22 ~

Apron Feeders

DVE Apron Feeders are used for volumetric feeding of material from bunkers, bins or stockpiles. They can beeither fixed or variable speed to suit the application.

The machines are designed to operate continuously inarduous conditions with high impact loads and coarse and abrasive materials.



Our Apron feeders consist of two strands of heavy duty chain fitted into cast steel pans. The chain issupported on standard chain carrying rollers and full face plain rollers on the feeders return sides. The feeders are designed with side frames fabricated in rolled steel sections, built to withstand high-impact loads, and arduous conditions.

Applications include coal, coke, iron ore, stone, limestone, sand and gravel.

~ 22 ~


DVE Apron Feeders are used for volumetric feeding of material from bunkers, bins or stockpiles. They can be either fixed or variable speed to suit the application.

The machines are designed to operate continuously in arduous conditions with high impact loads and coarse and abrasive materials.


Our Apron feeders consist of two strands of heavy duty chain fitted into cast steel pans. The chain is supported on standard chain carrying rollers and full face plain rollers on the feeders return sides. The feeders are designed with side frames fabricated in rolled steel sections, built to withstand high-impact loads, and arduous conditions.

25

Apron Feeder Delivering Run of Mine Coal at an Opencast Mine Site in the U.K.

Scrap Handling Apron Feeder

DVE is committed to the supply of quality products and services to the mineral processing and mechanical handling industries.

Our extensive experience enables us, through design, manufacture and service to competently undertake a wide spectrum of works from part projects to full turnkey.

DVE machinery and technology can be found worldwide wherever quality and reliability are of prime importance.

As well as standard Apron Feeder units our design team will produce individually designed Apron Feeders that will suit special applications and installation criteria.

Every effort is made to understand the particular requirements of a client, and provide an optimum solution.

All enquiries are carefully studied; recommendations are based upon our considerable knowledge and expertise of the mineral processing and mechanical handling industries.

Applications include the following :-Coal, Coke, Iron Ore, Stone, Limestone, Sand and Gravel, Scrap Metal.


DVE is committed to the supply of quality products and services to the mineral processing and mechanicalhandling industries.

Our extensive experience enables us through design, manufacture and service to competently undertake a wide range of projects from part projects to full turnkey.


Apron Feeder Delivering Run of Mine Coalat an Opencast Mine Site in the U.K.

~ 23 ~


Every effort is made to understand the particular requirementsof a client, and provide an optimum solution.

All enquiries are carefully studied; recommendations are based upon our considerable knowledge and expertise of the mineralprocessing and mechanical handling industries.

Applications include the following :- Coal, Coke, Iron Ore, Stone, Limestone, Sand and Gravel, Scrap Metal.

VARIABLE BETWEEN 1000 & 2500 mm.

FINES COLLECTION CONVEYORCANBE INCLUDED AS AN

OPTIONAL EXTRA






~ 23 ~







OPTIONAL EXTRA






~ 23 ~







OPTIONAL EXTRA






~ 23 ~







OPTIONAL EXTRA






~ 23 ~







OPTIONAL EXTRA

Belt Conveyors DVE Superveyor

The DVE Supaveyor is a versatile conveyor which can be adapted to a multitude of applications.

The main features are:- • Low cost • Modular drive and tension sections • Modular intermediate sections to suit the installation • Wide range of belt widths and types• Choice of weather covers • Suitable for a variety of products

The basis of the conveyor is that the drive frame and tail frame are standard units in a range of belt widthsto suit the tonnage and material to be conveyed. The conveyor length is made by utilising standard stringersections. The conveyor can be supplied with a range of covers to suit customer’s individual requirementsfrom full steel covers to netting covers to simple wind boards.

Steel covers can be fixed or hinged. Netting wind covers are stretched over the frame and secured to fixingbars. Wind boards can be any height or material and fixed in slots or with bolt fasteners.The conveyor is equipped with a belt cleaning system to suit the material being conveyed. Different materials require different types of cleaner from tangential, to secondary or brushes. We use both our own and the customers experience to select the most effective solution for belt cleaning.

~ 24 ~

The conveyor is driven by a shaft mounted geared motor. The drive drum is rubber lagged to ensure positive drive to the conveyor belt which ensures consistent transfer of the product. The conveyor can be inclined at a range of angles to suit the application. Products which can be conveyed range from seeds, grain, malt, sand, aggregates, powders and many similar products.

Belt Conveyors

26

DVE Superveyor

The DVE Superveyor is a versatile conveyor which can be adapted to a wide range of applications.

The main features are:-• Lowcost• Modulardriveandtensionsections• Modularintermediatesectionstosuittheinstallation• Widerangeofbeltwidthsandtypes• Choiceofweathercovers• Suitableforavarietyofproducts

The conveyor is driven by a shaft mounted geared motor. The drive drum is rubber lagged to ensure positive drive to the conveyor belt which ensures consistent transfer of the product.

The conveyor can be inclined at a range of angles to suit the application. Products which can be handled range from seeds, grain, malt, sand, aggregates, powders plus many similar products.

The basis of the conveyor is that the drive frame and tail frame are standard units in a range of belt widths to suit the tonnage and material to be conveyed. The conveyor length is made by utilising standard stringer sections. The conveyor can be supplied with a range of covers to suit customer’s individual requirements from full steel covers to netting covers to simple wind boards.

Steel covers can be fixed or hinged. Netting wind covers are stretched over the frame and secured to fixing bars. Wind boards can be any height or material and fixed in slots or with bolt fasteners.The conveyor is equipped with a belt cleaning system to suit the material being conveyed. Different materials require different types of cleaner from tangential, to secondary or brushes. We use both our own and our customers experience to select the most effective solution for belt cleaning.

27

*Capacitiesbasedonbeltspeedof1m/sandBulkDensityof1.6tonne/m³forhorizontalconveyor.

Technical DataTECHNICAL DATA

Standard Construction:- Distance between supporting trough rollers approx - 1m.Distance between return rollers approx - 3m.Drive drum diamond pattern rubber lagged. Product inlet skirt plates, skirt rubbers and additional support rollers. Optional additions:-Inlet and discharge chute work. Specialist belting:- oil resistant, chevron etc. Walkways, handrailing and supporting structure.

~ 25 ~

Standard Open & Covered SV 400 450 500 600 650 800 1000 1200

Belt Width mm 400 450 500 600 650 800 1000 1200

Supporting Trough Rollers No. 3 3 3 3 3 3 3 3

Trough Angle deg º 30 30 30 30 35 35 35 35

*Capacity m³/h 46 64 82 125 160 250 408 598

*Capacities based on belt speed of 1m/s and Bulk Density of 1.6 tonne/m³ for horizontal conveyor.

935

5004 STANDARD SECTION LENGTH

Ø324 TAIL DRUMØ324 HEAD/DRIVE DRUM

BEL

T LI

NE

BELT WIDTH

I/S SKIRTS

Ø102 RETURN ROLLERS

Ø102 IDLER SETS

Dim "A"

Dim "B"

322

935

Dim "B"Dim "A"SV No.SV 400

SV 500SV 450

SV 1000SV 800SV 650SV 600

SV 1200

400 mm 450 mm 500 mm 600 mm 650 mm 800 mm 1000 mm 1200 mm 800 mm

670 mm540 mm440 mm400 mm340 mm300 mm270 mm

TECHNICAL DATA

Standard Construction:- Distance between supporting trough rollers approx - 1m.Distance between return rollers approx - 3m.Drive drum diamond pattern rubber lagged. Product inlet skirt plates, skirt rubbers and additional support rollers. Optional additions:-Inlet and discharge chute work. Specialist belting:- oil resistant, chevron etc. Walkways, handrailing and supporting structure.

~ 25 ~

Standard Open & Covered SV 400 450 500 600 650 800 1000 1200

Belt Width mm 400 450 500 600 650 800 1000 1200

Supporting Trough Rollers No. 3 3 3 3 3 3 3 3

Trough Angle deg º 30 30 30 30 35 35 35 35

*Capacity m³/h 46 64 82 125 160 250 408 598

*Capacities based on belt speed of 1m/s and Bulk Density of 1.6 tonne/m³ for horizontal conveyor.

935

5004 STANDARD SECTION LENGTH

Ø324 TAIL DRUMØ324 HEAD/DRIVE DRUM

BEL

T LI

NE

BELT WIDTH

I/S SKIRTS

Ø102 RETURN ROLLERS

Ø102 IDLER SETS

Dim "A"

Dim "B"

322

935

Dim "B"Dim "A"SV No.SV 400

SV 500SV 450

SV 1000SV 800SV 650SV 600

SV 1200

400 mm 450 mm 500 mm 600 mm 650 mm 800 mm 1000 mm 1200 mm 800 mm

670 mm540 mm440 mm400 mm340 mm300 mm270 mm

Options:-

Inlet and discharge chute work.Specialist belting:- oil resistant, chevron etc.Walkways, handrailing and supporting structure.

Standard Construction:-

Distance between supporting trough rollers approx - 1m.Distance between return rollers approx - 3m.Drive drum diamond pattern rubber lagged.Product inlet skirt plates, skirt rubbers and additional support rollers.

Scraper ConveyorExtra Security where it’s needed

28

Scraper Conveyor

EXTRA SECURITY WHERE IT’S NEEDED

ADVANTAGES OF SCRAPER CONVEYORS• No spillage or dust problems.• Mixing and blending of material conveyed.• Hot, sticky or abrasive material easily handled. • Conveying angles up to 45°. • Submerged operation is no problem.• Facilitates bunker extraction and proportioning

distribution.• Low headroom requirements.

~ 26 ~

Advantages of Scraper Conveyors

• Nospillageordustproblems.• Mixingandblendingofmaterialconveyed.• Hot,stickyorabrasivematerialeasilyhandled.• Conveyinganglesupto45°.• Submergedoperationisnoproblem.• Facilitatesbunkerextractionandproportioning distribution.• Lowheadroomrequirements.

Scraper Conveyor

EXTRA SECURITY WHERE IT’S NEEDED

ADVANTAGES OF SCRAPER CONVEYORS• No spillage or dust problems.• Mixing and blending of material conveyed.• Hot, sticky or abrasive material easily handled. • Conveying angles up to 45°. • Submerged operation is no problem.• Facilitates bunker extraction and proportioning

distribution.• Low headroom requirements.

~ 26 ~

29

The Don Valley Mk1 Chain is a positive improvement over traditional design, and has resulted from many years practical experience designing and building scraper conveyors plus an extensive knowledge of the operational problems associated with the transportation of bulk materials where particularly arduous conditions exist.

Mk1 Chain offers the following advantages to the user :-

Forged Cross Bar Connecting Links form an integral part of the chain and provide a strong and reliable connection to the flights, eliminating the possibility of weld failure at this critical point.

Easily Replaceable Cross Bars are tailored to suit individual requirements. These are bolted directly to the forged connectors with High Tensile Bolts and Locknuts. The interfaces of the mating surfaces can also be chemically bonded together during assembly to provide enhanced security.

Rationalisation of Spares Capital outlay and replacement costs are minimised since :-

• ChainsandConnectorsaresymmetricaland not handed. Provided that the Cross Bar pitch is constant, a single strand of chain held in stock will serve as a spare for any number of conveyors regardless of flight bar length or design.• Intheeventoflocaliseddamage,theindividual component can easily be replaced.• Assembledlengthsofchainareconnectedonsite by cold riveting, bolting or Huck connection.

Cross Bar Fixing Kits with full instructions are available to enable the customer to undertake refurbishment or repair work.

Chain Specification

• Alllinksandconnectorsaredropforgedin0.4% Carbon Steel to BS4114:1967.• Workingloadequals7.5Tonneperstrandwitha Breaking Load equal to 30 Tonnes per Strand.• CrossBarConnectorsmaybeprovidedatany pitch in multiples of 216 mm (8.5 inches).

• Mk1Chaincanbesuppliedcompletewithcross bars or as a matched single strand.• DonValleyEngineeringalsomanufacturecomplete Scraper Conveyors to Customers Requirements.

~ 27 ~

Typical scraper conveyor with drive, tail, loading and intermediate sections.

Typical half sectionsthrough scraper conveyor

at loading andintermedaite sections.

Typical photographs of an assembled chain

before and after installation into a scraper conveyor

TYPE A B C D (P.C.Dia.)6 TOOTH 100

(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676

All Dimensions in Millimetres

Sprockets available with teeth cast integral. Singleflanged return rollers. Drive / tension shafts. C.I. plummer blocks with brass / bronze bushes. Medium / heavy duty split roller bearings. Wear strips for chaintracks in special hard steel. Prices on application.

The Don Valley Mk1 Chain is a positive improvement over traditional design, and has resulted from many yearspractical experience, designing and building scraper conveyors plus an extensive knowledge of the operationalproblems associated with the transportation of bulk materials where particularly arduous conditions exist.


Forged Cross Bar Connecting Links form an integral part of the chain and provide a strong and reliableonnection to the flights, eliminating the possibility of weld failure at this critical point. c

Easily Replaceable Cross Bars are tailored to suit individual requirements. These are bolted direct to the forgedconnectors with High Tensile Bolts and Locknuts. The interfaces of the mating surfaces can also be chemically

onded together during assembly to provide enhanced security.b

Rationalisation of Spares. Capital outlay and replacement costs are minimised since :- • Chains and Connectors are symmetrical and not handed. Provided that the Cross Bar pitch is constant, a

single strand of chain held in stock will serve as a spare for any number of conveyors regardless of flightbar length or design.

• In the event of localised damage, the individual component can easily be replaced. • Assembled lengths of chain are connected on site by cold riveting, bolting or Huck connection.


CHAIN SPECIFICATION

• All links and connectors are drop forged in 0.4% Carbon Steel to BS4114:1967.• Working load equals 7.5 Tonne per strand with a Breaking Load equal to 30 Tonnes per Strand. • Cross Bar Connectors may be provided at any pitch in multiples of 216 mm (8.5 inches). • Mk1 Chain can be supplied complete with cross bars or as a matched single strand. • Don Valley Engineering also manufacture complete Scraper Conveyors to Customers Requirements.

~ 27 ~







(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676












CHAIN SPECIFICATION


Typical photographs of an assembled

chain before and after installation into a scraper conveyor


Sprockets available with teeth cast integral. Single flanged return rollers. Drive / tension shafts. C.I. plummer blocks with brass / bronze bushes. Medium / heavy duty split roller bearings. Wear strips for chain tracks in special hard steel.

Typical half sections through scraper conveyor at loading and intermedaite sections.

~ 27 ~







(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676






Easily Replaceable Cross Bars are tailored to suit individual requirements. These are bolted direct to the forgedconnectors with High Tensile Bolts and Locknuts. The interfaces of the mating surfaces can also be chemicallyonded together during assembly to provide enhanced security.b





CHAIN SPECIFICATION


~ 27 ~







(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676












CHAIN SPECIFICATION


~ 27 ~







(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676












CHAIN SPECIFICATION


~ 27 ~







(Max.)125 165 418

9 TOOTH 100(Max.)

125 254 676












CHAIN SPECIFICATION


Servicing & Repairs

30

On Site Servicing

DVE provide on site equipment servicing for scheduled plant maintenance or shutdowns. We ensure minimal downtime to minimise disruption to your business. All our on site personnel are safety passport trained and are experienced in all aspects of site work and are constantly trained to the latest regulations. Talk to us about service contracts, free inspections or emergency maintenance.

[email protected]

Service Exchange Screen Exciter Units

DVE offers an excellent service exchange programme for most types of screen exciter units. By having units in stock customers can change out exciters with minimum disruption to production.

Our large customer base for service / exchange units demonstrates the effectiveness of the service.

[email protected]

Exciter Unit After Refurbishment

Selection of Shafts in Stock

Servicing & Repairs

~ 28~

On Site Servicing

DVE provide on-site equipment servicing for scheduled plant maintenance or shutdowns. Weensure minimal downtime to minimisedisruption to your business. All our onsite personnel are safety passport trained and are experienced in all aspects of site work and are constantly trained to the latest regulations. Talkto us about service contracts, free inspections or emergency maintenance.

[email protected]

Service Exchange Screen Exciter Units

DVE offers an excellent service exchange programme for most types of screen exciter units. By having units in stock customers can change out exciters with the minimum fuse and disruption to production.

Our large customer base for service / exchange units demonstrates the effectiveness of the service.

[email protected]

Exciter Unit Prior to Refurbishment

Selection of Shafts in Stock Exciter Unit After Refurbishment

Exciter Unit Prior to Refurbishment

31

Spare Parts

DVE has a full time dedicated Spare Parts Department that will give free advice on all your requirements for screens, centrifuges and all other DVE products. With many years of experience DVE has an excellent knowledge of all spare parts and consumables

required and hold a large stock to ensure that our customers can minimise downtime.

[email protected]

DVE can offer the highest quality and cost effective repairs/overhauls to any of our equipment. No matter

how big or how small we treat each repair/overhaul individually.

Spare PartsDVE has a full time dedicated Spare Parts Department that will give free advice on all your requirements for screens and centrifugesand all other DVE products. With many yearsof experience DVE has an excellent knowledge of all spare parts and consumables required and hold a large stock to ensure that our customerscan minimise downtime.

[email protected]

Repairs and Overhauls

At our works in Doncaster we have the facilities to carry out major repairs and overhauls on any of our machines. We have a full time servicing and installation department dedicated to keeping your machines in tip top condition. DVE offer a full “Start to Finish” service with each job projectmanaged so as to reduce your machines down time.

~ 29 ~

DVE can offer the highest quality and cost effective repairs/overhauls to any of our equipment. No matter how big or how small we treat each repair/overhaul individually.

Spare PartsDVE has a full time dedicated Spare Parts Department that will give free advice on all your requirements for screens and centrifugesand all other DVE products. With many yearsof experience DVE has an excellent knowledge of all spare parts and consumables required and hold a large stock to ensure that our customerscan minimise downtime.

[email protected]


At our works in Doncaster we have the facilities to carry out major repairs and overhauls on any of our machines. We have a full time servicing and installation department dedicated to keeping your machines in tip top condition. DVE offer a full “Start to Finish” service with each job projectmanaged so as to reduce your machines down time.

~ 29 ~

DVE can offer the highest quality and cost effective repairs/overhauls to any of our equipment. No matter how big or how small we treat each repair/overhaul individually.

Spares & Overhauls


At our works in Doncaster we have the facilities to carry out major repairs and overhauls on any of our machines. We have a full time servicing and installation department dedicated to keeping your

machines in tip top condition. DVE offer a full “Start to Finish” service with each job project managed so as to reduce your machines down time.

Don ValleyEngineeringDon Valley Engineering LimitedSandall Stones Road,Doncaster, South YorkshireDN3 1QR. England UK

Tel: +44 (0) 1302 881188Fax: +44 (0) 1302 881000



www.donvalleyeng.comwww.donvalleyeng.comwww.donvalleyeng.com

ECIA Engineering Construction

Industry Association





Don Valley Engineering Limited, Maltings Division, Sandall Stones Road, Doncaster, South Yorkshire DN3 1QR. ENGLAND UK

Tel: +44 (0) 1302 881188Fax: +44 (0) 1302 881000

Email:General: [email protected]: [email protected]


Don Valley Engineering Group:

Maltings Plants, Industrial Screens,Feeders and Centrifuges

Solutions in Bulk Materials Handling Plant Installation, Relocation, ShutdownsIndustrial Screens, Feeders,Dewatering Centrifuges, Bulk Handling,Bunkers, Rail & Road Loading& Unloading Systems

Solutions in Bulk Materials Handling & Storage for Powders and Granules, and Lime Addition Systems

Plant Installation, Relocation, ShutdownsFull Project Management to Labour supply only

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