Laser level products Coal fired power plants

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Application description AD/LASERLEVEL/001–EN Laser level products Coal fired power plants Coal fired thermal power plants handle huge amounts of coal throughout a complex process scheme. This requires flow and quality to be optimized constantly and to a very high degree of efficiency to reach adequate profitability. ABB pulsed laser technology provides the best in class solutions to the industry. Measurement made easy Introduction Coal fired power plants now face more challenges as the demand for energy increases resulting in morning ramps requiring faster responses and peak demands requiring larger capacities. Such operational issues imply a tighter control of each process for maximized efficiency. In some countries, cost reduction is also needed to cope with competition, such as natural gas, and to reduce impact of plant upgrades to comply with environmental standards. ABB laser level transmitters, positioners and volumetric scanners offer fast, accurate and precise solutions for stock management and quality control at several strategic points in the power plant. Stock management is a key contributor to power plant profitability. It’s all a matter of reducing holdings while keeping a constant and effective flow. Inventory can be optimized on many facets such as stockpile size, stockpile turnover period, stock level fluctuation and timely stock management. Quality control is also of great significance and aims at reducing random quality variations and at optimizing blends according to power plant’s own requirements.

Transcript of Laser level products Coal fired power plants

Page 1: Laser level products Coal fired power plants

Application description AD/LASERLEVEL/001–EN

Laser level productsCoal fired power plants

Coal fired thermal power plants handle huge amounts of coal throughout a complex process scheme. This requires flow and quality to be optimized constantly and to a very high degree of efficiency to reach adequate profitability. ABB pulsed laser technology provides the best in class solutions to the industry.

Measurement made easy

Introduction

Coal fired power plants now face more challenges as the demand for energy increases resulting in morning ramps requiring faster responses and peak demands requiring larger capacities. Such operational issues imply a tighter control of each process for maximized efficiency. In some countries, cost reduction is also needed to cope with competition, such as natural gas, and to reduce impact of plant upgrades to comply with environmental standards. ABB laser level transmitters, positioners and volumetric scanners offer fast, accurate and precise solutions for stock management and quality control at several strategic points in the power plant.

Stock management is a key contributor to power plant profitability. It’s all a matter of reducing holdings while keeping a constant and effective flow. Inventory can be optimized on many facets such as stockpile size, stockpile turnover period, stock level fluctuation and timely stock management.

Quality control is also of great significance and aims at reducing random quality variations and at optimizing blends according to power plant’s own requirements.

Page 2: Laser level products Coal fired power plants

Laser level productsCoal fired power plants

2 AD/LASERLEVEL/001 | Laser level products | Coal fired power plants

Easy laser level measurement throughout the plant

ABB laser level transmitters can be easily installed in silos, bunkers, hoppers, conveyors or feeders to constantly monitor coal height. They can also be used as positioning devices to track tripper cars, stackers, plough feeders and reclaimers at very long distances. Signal output can be sent to the controlling systems and actions can be triggered by relays.

ABB laser scanners can be installed in stockyards, warehouses, domes, silos or bunkers to precisely and accurately quantify the volume of coal in sight, either for large stockpiles or for contained areas such as small bunkers. Irregular shapes or interfering infrastructures are dealt with through a service of data treatment that returns reliable information in a timely manner.

The technology also applies to wood or biomass for which some power plants get converted.

Fig. 1: Coal management and processing steps

Limestone

Warehouses

Domes

Bott

om A

sh

BunkersTripper cars +

Crushers

Stackers

Reclaimers

Plough Feeders

Hoppers

Silos

Stockyards

Synt

hetic

Gyp

sum

Level – LM80 / LM200 Volume – VM3D— Silos— Bunkers— Feeders— Hoppers— Conveyors

— Stockyards— Warehouses— Domes— Silos— Bunkers— Sheds

Positioning – LM80 / LM200— Reclaimers— Stackers— Feeders

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Laser level products | Coal fired power plants | AD/LASERLEVEL/001 3

Features, benefits and performance

Features Benefits

All Laser Products

Robust construction Care free

Non-condensing optics (heated lens) Maintenance free

Narrow beam High precision to get around infrastructures

Low beam divergence Measures great distances

Multi-mounting options Easy to install

Non-contact pulsed laser technique Measures any surface at any angle

Insensitive to:

Solids size, vessel construction, angle of repose, gas and high humidity,

condensation, vibrations at surfaces, moving and falling material, material’s

dielectric constant

Laser Level Transmitters [LM80 / LM200]

No moving parts Maintenance free

Fast electronics Rapid response

4-20 mA current loop and relays Easy to use

Configuration device Easy to install

Laser Volumetric Scanners [VM3D]

Multiple scanners network Quantify very large stockpiles

Data processing services High accuracy

ABB high performance engineering Guaranteed data integrity

Remote monitoring Artefacts and infrastructures elimination

Fig. 2: Aerial view of a coal supply for power station

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Contact us

AD

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4Performance

Application: Coal stockpiles (indoor+outdoor)

Solution: ABB VM3D

Challenges: Extreme operational conditions (-35 to 65ºC)

Dusty environment

Very large coal stockpiles

Warehouse structures

Goals achieved: Accurate inventory control for daily basis production

planning

Optimized combustion process (boiler efficiency)

Correlated quantity paid for delivered material

Replaced manual survey operation by accurate

inventory management system

Application: Coal silos

Solution: ABB LM200

Challenges: Extreme peaking and slumping of the material

Simultaneous filling/reclaiming (rat-holing)

Falling stream of coal

Near empty levels on narrow bottom

Various particle sizes (dust to 4” chunks)

Goals achieved: Accurate readings

Constant readings

Reliable results

Maintenance free transmitter

NoteWe reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.

We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts – is forbidden without prior written consent of ABB.

Copyright© 2014 ABBAll rights reserved

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