SEPARATORI CENTR GB 3 ante 2010 NEW -...

CENTRIFUGAL SEPARATORS

for industrial use

SEPARATORI_CENTR_GB_3_ante_2010_NEW 30-06-2011 16:38 Pagina 3

Sedimentation is one of the mostversatile separation processes.PPiieerraalliissii VVeerrttiiccaall SSeeppaarraattoorrss (Disc-Stack Separators) are ideally suited toseparation processes where thephysical characteristics ofsedimentation can be applied thanks todensity difference.

Centrifugal sedimentation is often avery good and economical alternativeto other separation processes such as:• FFiillttrraattiioonn: based on particle size,• MMiiccrroo--FFiillttrraattiioonn: based on particlesize in the sub-micron range,

But what can we do if we do not haveenough time or if we want toincrease capacity? Going back toStokes’ Law, to obtain an highersettling velocity and consequently toaccelerate the sedimentationprocess, we can replace gravitationalacceleration “g” by centrifugalacceleration “ˆ2 r”.The centrifugal acceleration “ˆ2 r”produced in a Pieralisi VerticalSeparator is up to ten thousandtimes higher than the ordinary forceof gravity “g”. As a consequence,settling velocity is up to ten thousand

times faster, and separation canbe achieved in a very short timeand/or using very small volumes.

SSEEDDIIMMEENNTTAATTIIOONN

The most common advantages ofcentrifugal sedimentation, betterknown as CCeennttrriiffuuggaall SSeeppaarraattiioonnare:• compact size of equipment,• low capital investment,• versatility,• ease of use,• low operating costs,• high performance.

TThhee bbaassiicc pprriinncciippllee ooff sseeppaarraattiioonn bbyysseeddiimmeennttaattiioonn aalllloowwss ffoorr tthheessiimmuullttaanneeoouuss sseeppaarraattiioonn ooff ttwwoo oorrtthhrreeee ddiiffffeerreenntt,, iimmmmiisscciibbllee ssuubbssttaanncceess..PPIIEERRAALLIISSII VVeerrttiiccaall SSeeppaarraattoorrss tthhaattmmaakkee uussee ooff tthhiiss llaatttteerr sseeppaarraattiioonnrreeggiimmee aarree ccaalllleedd tthhrreeee--pphhaasseesseeppaarraattoorrss.. NNoonnee ooff tthhee aalltteerrnnaattiivveepprriinncciipplleess mmeennttiioonneedd aabboovvee ccaannaacchhiieevvee tthhiiss rreessuulltt.. SSeeddiimmeennttaattiioonn iisstthhee pphhyyssiiccaall pprroocceessss wwhheerreebbyyssuussppeennssiioonnss aanndd eemmuullssiioonnss ((oorr aaccoommbbiinnaattiioonn ooff bbootthh)) aarree eexxppoosseedd ttooggrraavviittaattiioonnaall ffoorrccee,, eeiitthheerr tthhee eeaarrtthh’’ssggrraavviittyy oorr bbyy uussiinngg aa cceennttrriiffuuggee.. BByyaappppllyyiinngg gg--ffoorrccee,, tthhee ddrroopplleettss aanndd//oorrppaarrttiicclleess aaccqquuiirree sseettttlliinngg vveelloocciittyy ((vvgg))aanndd aarree sseenntt ttoo tthhee bboottttoomm//wwaallll oofftthhee ccoonnttaaiinneerr//cceennttrriiffuuggee bboowwll..

Settling velocity (vg) increases with:• bigger particle diameter,• higher density difference,• lower dynamic viscosity of the fluid

environment.

Settling velocity can be estimated via awell-known equation known as Stokes’Law:

Sedimentation is used in manyindustrial processes where it isnecessary to separate substancesthat are mixed together (dispersion).With a suitable recipient and the timeneeded to complete the sedimentationprocess, the two or more substanceswith different densities will beseparated (stratified) within the

recipient, the lightest going to thesurface, the heaviest to the bottom.(See illustration below)

AADDVVAANNTTAAGGEESS

IINNCCRREEAASSIINNGG CCAAPPAACCIITTYY

Separationof

The Principles

Separator FPC18technical drawing

Separator S300technical drawing

Modified Stokes’ Law

N.B. Stokes’ Law can of course only be usedwhen the settling process takes place underconditions when the Reynolds-No. is below0,25. For higher Reynolds-No., the Grassmannsystem has to be used, which takes advantageof two dimension-less parameters: theArchimedes number and the Omega number.

• FFlloottaattiioonn: based on physical-chemical behaviour, i.e. surfacetension. In many cases centrifugalsedimentation and anothercomplementary technology arecombined to achieve the requiredprocess results.


Pieralisi Vertical Separators combine very high rotational speed, a unique design and special materials. They generate a very highcentrifugal force which, when used for sedimentation purposes, ensures extremely efficient equipment. The mixture to beseparated is forced through a conical disc stack, where multi-layer sedimentation takes place. The separation happens veryquickly as the mixture passes through the parallel thin channels of the disc stack. A medium-sized Disc-Stack Separator, whenusing high centrifugal force, can be compared to the efficiency of a sedimentation tank with a surface area of 60,000 m2, thesame size as 10 football fields. In technical terms, this separator hosts an “equivalent settling area” of 60,000 m2 .

Construction materialsThe structural parts of the bowl aremade of special stainless steel, theinside parts in contact with theproduct are made of suitablematerials for the processingenvironment: stainless steel, brassor bronze. The housing of theVertical Separator is in stainlesssteel or aluminium and cast iron. The gearbox is made of paintedcast iron or cast iron coated withstainless steel. The gasket materialis always selected according to theprocess media.

TransmissionThe movement is always generatedby an electric motor and istransmitted by means of:

• clutch and worm gear,• flexible coupling worm gear,• set of pulleys and flat belt.A special transmission version makesuse of a high-speed motor coupleddirectly to the vertical shaft.

Feeding and discharge of process liquidsThe mixture generally is fed in througha stationary feed pipe in the centre ofthe bowl. The separated liquid may bedischarged from the Vertical Separatorby an overflow or by one or two built-incentripetal pumps.

DDEESSIIGGNN FFEEAATTUURREESS

SSPPEECCIIAALL VVEERRSSIIOONNSS

HHOOWW DDOOEESS IITT WWOORRKK??

Thousands of “g”s are produced in thebowl of the Disc Stack Separator, thecentrifugal force being the product ofthe high rotational speed and the largesize of the bowl. The rotation isgenerated by an electric motorconnected to the horizontal shaft bymeans of an elastic coupling or clutch.Thanks to the gear ratio produced byspecially-designed gears, the movementis transferred to the vertical shaft. The bowl is assembled on the conicaltop-end of the vertical shaft. The processing liquid is fed into thecentre of the bowl through thestationary feed pipe. Subsequently theinflow is accelerated by means ofspecially-designed accelerators, forced

PieralisiVertical

Separators

in the first instance to the periphery ofthe bowl, and then through the discswhere multi-layer separation takesplace. The separated liquid(s) flow tothe top of the bowl where they are

discharged by overflow or by centripetalpumps. The solids captured via thedescribed settling process are collectedat the periphery of the bowl, and thendischarged intermittently. This discharge

is activated by ahydraulic systemlocated underneaththe separation area.In essence, thesolids aredischarged viaopenings at theperiphery of thebowl which areopened and closedby the down- andupwards movementof either a slidingpiston or bowlbottom (see picture).

SECTIONOF A BOWL

Sanitary versionSpecially-designed all-stainless-steelSeparators, designed to be usedwith a CIP cycle for cleaning

purposes. This version is designedfor the easy sanitization of all partsin contact with the product andrequires with no manual operation.

ATEX versionSpecially-designed and certifiedVertical Separators, designed to beinstalled in hazardous areas and forthe treatment of potentiallyinflammable products, i.e.Separators complying with II2G EExcp IIB TB4. These separators areinactivated by means of nitrogen gasto minimise the risk of ignition and tofulfil ATEX requirements.

Hermetic versionHydro-hermetic device installedinside the bowl, designed to ensurethat contact with the surroundingenvironment is avoided, and toprevent oxidation and gas leaks.


Vertical Disc-Stack Separators are normally designed for one type of separation only, but in some cases, more versatileversions are available that can carry out two different types of separation. Below is a list of the range of disc stacks and bowldesigns used for different types of separation.

PPIIEERRAALLIISSII DDiisscc--SSttaacckk SSeeppaarraattoorrss are able to simultaneously process dispersions of two liquids and one solid. The Pieralisi productrange offers three main equipment solutions: one with solids retention (requiring manual cleaning) known as the SS--TTyyppee, oneequipped with nozzles that allow continuous solids discharge, known as the SSUU TTyyppee, and the other with automatic, intermittentsolids discharge, known as the FFPPCC--TTyyppee. The tables below show types and sizes, with some general indications of dimensions.

Applicationsand Technical

Features

Environmental Processes� treatment and disposal processes of sludge from municipal and industrial waste water � drying of animal slurry � drying of biomass � thermal sludge dryingChemical Processes� production processes involving intermediate or end products and integrated recycling and recovery processes � processes within HDPE, PVC and PP polymer production � production processes for thepharmaceutical and biotech sector � minerals and ores production processes� production processes for non-fossil fuels,such as biodiesel and ethanol

Recycling� treatment processes for drilling mud � treatment and recovery processes forindustrial fluids � recycling of polymers and their respective recyclables � recycling of service water in industrialprocessesOleo-chemistry� production processes for oleo-chemistryderivates � refining processes for ediblevegetable oils, excluding olive oilMineral- Fuel and Lube Oils Processes� purification and conditioning of fuels� purification of lube oils � treatment and recovery of mineral andfuel oils � treatment of slop-oils from

AARREEAASS OOFF AAPPPPLLIICCAATTIIOONN FFOORR PPIIEERRAALLIISSII SSEEPPAARRAATTIIOONN SSOOLLUUTTIIOONNSS

refineries and lagoons, of slops from lubeoils, of bilge waterAnimal-Based Products� treatment of by-products from the fish-processing and meat-processingindustriesFood Production� processing and recovery of non-liquid food products � processing of citrus fruit � wine and sugar processing � recycling of food-related productsDairy Products and Juices� production processes of dairy and cheese products � recycling of relatedwaste materials � processing of fruit andvegetable juices.

CCLLAARRIIFFIICCAATTIIOONN PPUURRIIFFIICCAATTIIOONN ((SSEEPPAARRAATTIIOONN)) CCOONNCCEENNTTRRAATTIIOONN ((SSKKIIMMMMIINNGG))

Separation of suspended particles from aliquid (e.g. fruit juices, cell biomass).

Concentration of a light liquid dispersedthroughout a heavy liquid (e.g. skimming ofcream from milk).Simultaneous separation of solids is also possible.

Separation of a heavy liquid from a main lightliquid (e.g. separation of water fromlubricating oil).Simultaneous separation of solids is also possible.

SOLIDS RETAINING BOWL NOZZLES AUTOMATIC DISCHARGE

SEPARATORS WITH SEPARATORS WITH

5

S200

11

S250

25

S300

36

SU400

9

FPC 6

14

FPC 12

24

FPC 18

38

2 6 8 11 4 7 12 16

9100 6900 6400 4800 7100 6500 6400 5800

5000 8000 30000 100000 8000 16000 30000 50000

1,0 x 0,7 x 1,2 1,2 x 0,8 x 1,4 1,5 x 0,8 x 1,7 1,7 x 1,0 x 1,7 1,3 x 0,9 x 1,4 1,6 x 1,2 x 1,4 1,7 x 1,3 x 1,7 1,8 x 1,4 x 1,9

300 500 950 1900 1100 1400 2000 2600

FPC 24Type

Bowl Volume [L]

Sludge Space Volume [L]

Bowl Speed [rpm] max.

Hydraulic Capacity [L/h]

Dimension L x W x H [m]

Mass [kg]


Separators for

STEAM

CONDENSATE

H 3 O P 4

H O a N

PROCESS-W.

STEAM

GUMS

CHILLED W.

DEGUMMED OIL

GUMS

HO

LD

ING

T

AN

K

BUFFER TANK

WASH-W. RECYCLING

WASH- WATER

% 0 5

% 0 5 FLASH DRYING

VACUUM

CONDENSATE

CRUDE OIL

FILTER M M

M

GU

M C

ON

DIT

ION

ING

WASTE WASH-W

GUM SEPARATION

WASHING

DYN. MIXER

DYN. MIXER

STAT. MIXER

STEAM GENERATOR

POTABLEWATER

WATER OUTLET

SHELL AND TUBE HEAT EXCHANGER

M CLEAN SLOP OIL

M70

HOTWATER

inv

inv

SOLIDSOUTLET

DE-EMULSIFIERDOSING UNIT

PUMPING SKID

UNTREATEDSLOP OIL

SLOP OIL TO BE TREATED

SERVICEWATER

HEAT EXCHANGER

WATER TREATMENT

OILTANK WATER TANK

SSLLOOPP OOIILLSS

VVEEGGEETTAABBLLEE OOIILLSS::DDeegguummmmiinnggNNeeuuttrraalliizzaattiioonnWWaasshhiinngg

BBIIOODDIIEESSEELL

Biodiesel - Slop oils - Vegetable oils


IINNSSTTAALLLLAATTIIOONNSS WWOORRLLDDWWIIDDEE

SolutionsSeparation

Division

Via Don Battistoni, 1 - 60035 JESI (AN) - Italy - Tel. +39-0731-231.1 - Fax +39-0731-231.239www.pieralisi.com - [email protected]

3183

.1.2

077

- 06/

11 -

500

P

rinte

d by

: Tec

nost

ampa

, Lor

eto

(Ital

y)Th

e co

mpa

ny r

eser

ves

the

right

to m

odify

the

feat

ures

of i

ts p

rodu

cts

with

out n

otice

. Reg

ister

ed tr

adem

arks

. Adv

ertis

ing

mat

eria

l © c

opyr

ight

. All

right

s re

serv

ed.

Fuel oil purificationChemical industry

Chemical industry

Biodiesel washing

Biotech industryRecycling industry

Lube oil treatmentMilk treatment Biodiesel glycerin separation

TTHHEE PPIIEERRAALLIISSII GGRROOUUPP

Headquarters:PIERALISI S.p.A. - Via Don Battistoni, 1 - 60035 JESI (AN) (Italy) Phone 0039 0731 231.1 - Fax 0039 0731 231239www.pieralisi.com - [email protected] MAIP S.p.A. - Via Don Battistoni, 1 - 60035 JESI (AN) (Italy) Phone 0039 0731 231.1 - Fax 0039 0731 231239www.pieralisi.com - [email protected]

WORLDWIDEPIERALISI MAIP S.p.A. - Via L. da Vinci, 15 - 50020 SAMBUCA VAL DI PESA (FI) (Italy) - Phone 0039 055 8071657/8 Fax 0039 055 8071748PIERALISI MAIP S.p.A. - Via S. Pietro, 12 - 60036 MONTECAROTTO(AN) (Italy) - Phone 0039 0731 899027 - Fax 0039 0731 89259PIERALISI MAIP S.p.A. - S.S. 96, Km. 117,900 70026 MODUGNO (BA) (Italy) - Phone 0039 080 5352054Fax 0039 080 5352033

ICM S.r.l. CARRELLI ELEVATORI - Via Brodolini, 8 - Zona Industriale Zipa60035 JESI (Italy) - Phone 0039 0731 200350 Fax 0039 0731 200328 - www.pieralisicarrelli.com - [email protected] BENELUX B.V. - Braillestraat 2 2652 XV BERKEL EN RODENRIJS (The Netherlands) Phone 0031 10 8 92 92 00 Fax 0031 10 8 92 92 09 - [email protected] DEUTSCHLAND GmbH - Ochsenfurter Str., 2 97246 EIBELSTADT (Germany) - Phone 0049 9303 9082-0 Fax 0049 9303 9082-20 - [email protected] ESPAÑA S.L. - C/Burtina, 10 - P. Log. Plaza 50197 ZARAGOZA (Spain) - Phone 0034 976 466020Fax 0034 976 732816 - [email protected]ÓN PIERALISI SUR - Parque TecnolÓgico y Científico GeolitAvda. de la InnovaciÓn, Manzana 41 - 23620 MENGÍBAR - Jaén (Spain)Phone 0034 953 284023-280866 - Fax 0034 953 281715 [email protected] HELLAS A.E. - 14 Km National Road Athens - Lamia145 64 KIFISIA (Greece) - Phone 0030 210 8002460Fax 0030 210 8002464 - [email protected] MAGHREB SA - 36 rue 8601 - La Charguia I - 2035 TUNIS (Tunisia)Phone 00216 71 807353 - Phone/Fax 00216 71 770720 - [email protected]

PIERALISI NORTH AMERICA INC. - 5239 Muhlhauser RoadHAMILTON, Ohio 45011 (USA) - Phone 001 513 234 5061Fax 001 513 297 3092 - [email protected] Sales Office & Customer Service: 4630 Beloit Dr - Suite 10SACRAMENTO - CA 95838 (USA) - Phone 001 916 993 3981Fax 001 916 925 5294PIERALISI DO BRASIL LTDA - Rua Humberto Pela,156Bairro do Leitão - LOUVEIRA - SP (Brazil) - CEP 13290-000Phone 0055 19 3948-5250 - Fax 0055 19 [email protected] ARGENTINA S.A. - Paraná 4456, B1605DGH MUNROBuenos Aires (Argentina) - Phone/Fax 0054 11 4762 [email protected] - Operations Office: Mar del Plata 2668 Parque Industrial - 5300 LA RIOJA (Argentina)PIERALISI CHINA Co., LTD. - No. 1 Workshop, 2nd Phase, GuanglianIndustrial Park - No. 2 Kechuang East 5th Road, Opto-mechatronics Industrial Park, Tongzhou District, BEIJING 101111 (China) Phone 0086 10-81504877/81504987/81504928 Fax 0086 10-81504330 - [email protected]


SEPARATORI CENTR GB 3 ante 2010 NEW -...

Documents

Transcript of SEPARATORI CENTR GB 3 ante 2010 NEW -...