lb industrial systems brochure 2011

7/27/2019 LB Industrial Systems Brochure 2011

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Ash and Material Handling Solutions


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Table of Contents

Introduction

Typical Fly Ash Conveying Systems

Vacuum Fly Ash ConveyingPressure Fly Ash Conveying

Vacuum/Pressure Fly Ash ConversionHybrid Fly Ash Conveying

Reprint Silo addition changes byproduct from waste to profit

Representative Projects

SchererColeto Creek

Belews CreekJack WatsonBowenGadsdenSandowMcDonoughCrystal RiverNorth Texas CementEconomizer AshInternational


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Introduction

L.B. Industrial Systems is a turnkey supplier of ash handlingand other bulk material conveying, processing, and storage

systems. With over twenty-five years of experience in projectsfor coal combustion by-products, cement, petroleum coke andother bulk powder materials, we deliver cost-effective servicesfrom feasibility studies through engineering, procurement,construction, start-up, performance certification, and operatortraining.

Optimized Systems Design

Every LB installation is designed and made to provide long,trouble-free operation for our customers under the mostdemanding operating conditions. We assess our customers

unique needs and then apply the best available solution,utilizing both our proprietary equipment and specific 3rd partymanufactured components which have proven reliable in our installations over the years. Theresults we deliver to our customers include better performance, less wear resulting in lower overallmaintenance costs, and lower operating energy cost.

LB optimized systems begin with the fundamentals of material handling science. Materialproperties, plant layout and Owner operating requirements allow us to determine basic systemequipment sizing and piping routes. Our proprietary conveying software, including empirical datafrom our installed base of systems, allows us to size key components so that material flows freelywithin a controlled range of velocities. By controlling the conveying velocity in this manner, LBsystems reduce wear at elbows and tees, while assuring material remains properly aerated and

fluid. Typical LB systems require less horsepower for conveying, while providing for an appropriatereserve margin of conveying air supply.

Our Equipment and Systems Experience includes:

Dilute Phase Vacuum andPressure ConveyingSystems

Dense Phase PressureConveying Systems

Mechanical ConveyingSystems

Concrete and Steel Silos Mass Storage Facilities Bins and Bunkers Dust Control Systems Truck and Rail Unloading

Systems Stand-alone and Networked

Control Systems Blending Systems Weighing Systems

Ash Conditioning Systems Classification Systems Aeration Systems Compressed Air and Air

Drying Systems Grinding and Screening

Systems

Carbon and AmmoniaRemediation Systems

Drying Systems Sitework and Foundations Railways and Roadways Workshops, Control Rooms

and other plant buildings Electrical Power Distribution

and Control


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LB utilizes both our in-house engineering expertise and a network of established specialtyconsultants and subcontractors to enhance our project execution capabilities. Eachsubcontractor and supplier is familiar with the implementation of LBIS concepts, methods andsystems. We take great care to balance project commitments among our subcontractors.This provides LBIS the flexibility to quickly respond to market requirements.

Safety and risk management are essential elements of our business. Our primary focus is onour front-line supervision in the field. We take a hands-on approach to managing our projectsand pay close attention to the details. We insist on the strict adherence to all safety,environmental, and health laws and regulations, and to good engineering practices.Construction projects are professionally managed. We implement a program which meets ourclients plant policies concerning safety, permitting, clearances, security, substance abuse andother such provisions. Our personnel are highly experienced in working in and aroundoperating plant environments and we work cooperatively with the clients operating andmaintenance personnel.

Today, our customer base includes well-known companies, which are recognized leaders inthe utility power, basic metals, and cement industries. Our capability extends throughout the

U.S. Our previous experience also includes several projects in international locations.

Belews Creek - 100% dry fly ash withtruck and rail loadout and 40,000 tonmass storage. 500,000 tons peryear production.


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Vacuum Fly Ash Conveying System

Choose vacuum fly ash conveying toransfer moderate amounts of materialo adjacent storage / loadout facilities.

View the system diagram above to seehe components comprising the vacuumonveying system. A positive

displacement vacuum blower pulls airhrough the intake on the conveying

pipe. Automatic hopper valves open in

equence allowing fly ash to fall into their stream moving to the vacuumollector on top of the silo.

A deflector plate and filters in theollector separate material from the airlow to the blower. Materialccumulates in the collector hopper andalls into the airlock vessel. The valven top of the airlock isolates the silorom the collector. When the airlock

vessel fills the top valve closes and thebottom valve opens to empty the airlockvessel into the silo.

VACUUM CONVEYING

BENEFITS

Convey material from hopper tostorage with vacuum all the way

Reduce height requirement underhoppers with low profile piping

Seal pipe joints with flanged, boltedconnections expansion jointsaccommodate hopper movement

Run carbon steel pipe on straightroutes

Apply wear resistant hardenedfittings with heat-treated spool piecesat high wear bend locations only Hardened fitting and heat treated spool


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Pressure Fly Ash Conveying System

Pressure fly ash conveying is the systemften specified for new installations toransfer moderate to large amounts of

material to storage / loadout facilitiest remote locations of the plant.

View the system diagram at right to seehe components comprising the

pressure conveying system. A rotarycrew compressor produces transfer airo supply pressure feeder vessels andhe conveying line. Automatic hopperalves open in sequence allowing fly ash

o fall into a pressure feeder vesselunder each hopper.

The pressure conveying pipelinextends to the vertical riser pipe on theilo which delivers fly ash to the roof

mounted inlet box. Transfer air is runhrough a coalescing filter. Each row of

pressure vessels can be transferred intohe branch line simultaneously

permitting efficient transfer with feweralves.

DENSE PHASE HIGH CAPACITY

CONVEYING

Top discharge feeders force materialnto the line ahead of the transport air

making for a high solids-to-air ratio.Dense phase conveying means higherransfer rates and lower velocities. This

helps reduce wear to fittings in theystem.

PRESSURE CONVEYING

BENEFITS

Convey material from hopper to

storage with pressure all the way Unload one row of feeders at once

unique system requires fewer valves

Reduce height requirement underhoppers with low profile feeders

Suspend feeders from hoppers flexible discharge hose isolatesmovement


Apply wear resistant hardenedfittings with heat-treated spool piecesat high wear bend locations only

Hold conveying velocities to theoptimum range for materialsuspension and low wearcharacteristics Pressire feeder detail


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Vacuum / Pressure Fly Ash Conveying System

Vacuum/pressure fly ash conveying isest suited for the transfer of moderateo large amounts of material to storager loadout facilities located at remote

ocations of the plant.

View the system diagram at right to seehe components comprising the vacuumpressure conveying system. A positive

displacement vacuum blower pulls airhrough the intake on the conveying

pipe. Automatic hopper valves open in

equence allowing fly ash to fall into their stream moving to the vacuumollector.

A deflector plate and filters in theollector separate material from the airlow to the blower. Materialccumulates in the collector hopper andeeds into a pressure transfer vesselelow. When the pressure vessel fills,he vessel fill valve closes, it pressurizesnd the discharge valve opens. Ash ised into the pressurized transfer line

which conveys it to the silo or tank.

VACUUM/PRESSURECONVEYING BENEFITS

Convert wet system to dry utilizingexisting hopper piping

Convey material long distances athigh rates

Reduce height requirement underhoppers with low profile piping



Hold conveying velocities to theoptimum range for materialsuspension and low wearcharacteristics

Two collector set installation


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Hybrid Fly Ash Conveying System

Hybrid fly ash conveying is ideal forransfer of very large amounts of

material to storage / loadout facilitiesocated at remote locations of the plant.

View the system diagram at right to seehe components comprising the hybridonveying system. An aeration blowerurnishes fluidizing air to the air gravityonveyors. Automatic hopper valvespen in sequence allowing fly ash to fall

nto the air gravity conveyor moving to

large pressure feeder.

When the pressure feeder fills to theppropriate level, the fill valve closes.

The feeder pressurizes, the dischargealve opens and the ash is fed into the

pressurized conveying line. The ash isonveyed to the silo and conveying air isented through the silo baghouse.

GRAVITY FEEDS FLUIDIZED FLY

ASH TO CONVEYING VESSEL

With the hybrid fly ash conveyingystem a transfer vessel can serve a rowr rows of hoppers. Material flows

downhill from the hopper outlets intohe transfer vessel. The vessel fills

quickly and discharges into theonveying line at a high solids to airatio. Dense phase conveying results inhigh transfer rate to storage facilities

ong distances from the hoppers.

HYBRID CONVEYING BENEFITS

Convey material from hopper tostorage with fewer pressure vessels

Unload multiple hoppers at once Feed air conveyors from hoppers

flexible inlets isolate movement



Hold conveying velocities to theoptimum range for materialsuspension and low wearcharacteristics

Figure 1 - Hybrid system installation


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Silo additionchanges by-product fromwaste toprofit

An engineering firm specifies abolted steel tank to solve apower stations fly ash storageproblem.

Every year, US power compa-nies burn more than 1 billiontons of coal, resulting in more

than 100 million tons of by-products,including some 70 million tons of flyash, a glassy, powdery material. Fordecades, many power plants disposedof fly ash by sluicing it to closely reg-ulated disposal ponds. But as land andwater have become less plentiful andenvironmental regulations more

stringent, its become less practicalfor power plants to use this solution.Other power plants dispose of theirfly ash by trucking it to landfills.

Here, they have the advantage ofbeing able to compact the materialmore thoroughly (thus disposing ofmore material per cubic foot) and ofpiling the fly ash upward, above theground.

The silo supplier designed this 65-foot-diameter, 1 0 ,000 -ton-cap acity tankto enab le a pow er plant to store ex cess fly ash until it can be ma rketed.

Engineer ing solution

Reprinted from Powder and Bulk Engineering, November 2005 www.powderbulk.com


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However, many power plants nolonger want to dispose of their fly ashin either of these ways: Fly ash has be-come a valuable commodity. Itswidely used as an ingredient in con-crete, replacing a portion of the port-land cement used as concretes activeingredient.

During the past two decades or so, thenumber of power plants seeking tosell their fly ash rather than dispose ofit has significantly increased. This isespecially true of power plants thatuse western coal from the PowderRiver Basin in Wyoming. Nearly 50percent of the coal used by powerplants now comes from this area. Thecoal there is lower in sulfur than coalsfrom other areas, and it produces rela-

tively less fly ash. The fly ash itself ishigher in calcium, which makes itmore desirable in the concrete indus-try than other fly ash.

Converting the fly a sh ha ndlingsystem

The problem for most power plantshas been converting their fly ash han-dling systems from sluicing to selling.Thats where L.B. Industrial SystemsLLC, a San Antonio-based turnkeyengineering and contracting firm,

comes in. The firm specializes in thistype of conversion.

The firm is only a few years old; how-ever, the core personnel have been inthis business a long time. Bob Lister,the firms president, got his start with acompany that marketed fly ash frompower stations. He later became thatcompanys engineering departmenthead. During the 25 or so years he

worked there, the engineering depart-ment developed many of its own tech-nologies. In July 2001, the engineeringdepartment demerged from the com-

The plant wanted to be able tostore i ts excess winter fly ash

production and sell it once

construction season started again.

The silo supplier designed this 500-ton-capacity silo to structurally sup-por t the vacuum collector and other equip ment mounted on its top.


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pany and started its own firm, L.B. In-dustrial Systems. Today, the firm con-tinues to do contract work for thatcompany as well as many others.

Undertaking a conversion project

About 3 years ago, a major southeast-ern US power company came to L.B.Industrial and contracted their ser-vices to convert a large power plantfrom ponding its fly ash to dry-storingand selling it. The project has beendone in several stages. Most recently,the contractor helped the power planttake its final step finding a way tomake its year-round fly ash produc-tion a viable product.

The power plant had been success-

fully selling much of its fly ash duringthree seasons of the year, but duringthe winter, the construction industrydidnt need as much of it, and the plantwas having to dispose of most of its flyash. This cost the plant both in termsof lost sales and the costs associatedwith disposal. The plant wanted to beable to store its excess winter fly ashproduction and sell it once construc-tion season started again.

A big part of the problem was that thecompany produces some 600,000tons of fly ash annually. This meansthat during the winter months, thecompany needed substantial storagespace. It wanted a 10,000-ton storagefacility; however, it didnt have muchland space available. It challengedL.B. Industrial Systems to find a wayto solve its problem.

W hen the firm takes on a job, it

evaluates such things as the amount

of space available, the kind of soil

the structure wi ll be sitting on, and

the customers specific goals.

Lister says a company might take anyof several approaches to such a prob-lem, and his firm has used all of themwith various customers. Some exam-

ples are converting an existing vessel such as an oil tank to fly ashstorage; erecting a concrete buildingand using a front-end loader to loadout the material to trucks; building aconcrete dome with fully automaticload-in, load-out equipment; anderecting a concrete or metal silo withvarious load-in, load-out options.

Each of these approaches is bettersuited to certain conditions.

When the firm takes on a job, it evalu-ates such things as the amount of spaceavailable, the kind of soil the structurewill be sitting on, and the customersspecific goals. For example, some cus-tomers want to go the least expensiveway possible for their plant conditions.Others want fully automated systems

that only require an operator to push abutton on a computer.

In the case of the southeastern powerplant, it wanted affordable, reliablestorage. The main constraint was thelimited space available. After work-ing with the plant to determine all pa-rameters, the contractor proposed aplan that included a bolted steel silofrom Columbian TecTank, a silo sup-plier based in Parsons, Kans. Thecontractor had worked with this sup-plier on numerous occasions before.Although the contractors previousexperience with the silo supplier hadbeen with smaller tanks ranging from500-ton to 2,000-ton capacities, thecontractor was certain that the sup-plier could engineer a silo with theright ratio of height to diameter for therequired 10,000-ton capacity and fit itinto the space available.

After the customer accepted L.B. In-dustrial Systemss proposal, the con-tractor created detailed specifications,including those sent to the silo sup-plier. Lister says his firm essentiallydesigns the envelope of the silo interms of things that will go into andout of it (such as access doors andstairs, conveying equipment, level in-dicators, and so on) and tells the silosupplier where it wants holes and

flanges and access points for the vari-ous equipment. The silo supplier is

represented in the contractors area byThe Tennant Co., Houston, whichworks closely with the contractor andsilo supplier to integrate their efforts.

As on all typical projects, the silo sup-plier then must do the structural designand the detailed fabricating drawingsshowing the pieces that are going to bebolted together. Then, within about aweek of getting the specs, the silo sup-plier quotes the contractor a price for en-gineering, fabricating, and erecting thesilo. Once the contractor agrees to the

price, it takes the silo supplier another 2to 4 weeks to make the approval draw-ings, and 8 to 10 weeks for delivery.

The silo supplier supplies only the siloand its erection. L.B. Industrial Sys-tems engineers and builds the silosfoundation. In this case, the contractordrove 60- to 100-foot-long piles intothe ground and topped them with aconcrete foundation. Once the silo

supplier erected the silo on the founda-tion, the contractor mounted the otherequipment it had designed or specifiedto make the silo function within thenew fly ash handling system.

The storage silo

The storage silo was designed by thesuppliers staff of professional engi-neers (P.E.s), who have a combinedtotal of more than 50 years of tank-de-

sign experience. The engineers use pro-prietary CAD software to design silosthat exactly fit each customers needs.

This bo l ted s tee l s i lo is be ingerected one ring a t a time.


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The 10,000-ton-capacity storage silois a bolted steel tank 65 feet in diame-ter and a little more than 100 feet tall.Its made up of multiple factory-coated flanged panels with bolt holesaround all four edges. Each plate hasa slight curve, designed to preciselyfit the specified silos curvature. Au-tomated production equipment en-

sures that bolt holes and flanges willline up perfectly and that the panelsshare a uniform curvature.

The baked-on interior and exterior coat-ings protect the panels from abrasion,corrosion, and environmental damage.Because the coatings are applied in thefactory, the silo erection can take placein nearly any kind of weather, shorten-ing the required erection time.

Once the silo parts were delivered tothe site, the supplier erected the tankon the foundation the contractor hadprepared. All that was needed was toadd gaskets to the flanges, then boltthem together. The erection is doneone ring at a time. The supplier doesscaffolding thats supported by thelower rings as they go up, says Lister.

In the construction business,

predictability is worth a lotof

money. Thats why many

companies choose these silos.

Allen Rogers, president of The Ten-nant Co., says that the suppliers siloscan be delivered and erected relatively

quickly on a predictable schedule.(Welded silos generally have to becoated in the field after theyve beenwelded, and concrete structures usu-ally cant be built during wet weather,making these structures erectionschedules somewhat less predictable.)Rogers says, In the construction busi-ness, predictability is worth a lotofmoney. Thats why many companieschoose these silos. Theyre not cookie-cutter, but theyre predictable.

O pera ting the fly a sh ha ndlingsystem

In operation, the power plant dis-charges its fly ash to three 1,000-ton-capacity loadout silos. When thesefill, the fly ash is blown into the10,000-ton-capacity storage silo. As aloadout silos material level de-

creases, material is removed from thestorage silo via a vacuum extractionsystem the contractor designed andsent to the available loadout silo.

We did a comprehensive study on thebest way to get ash out of big silos,says Lister. We found the best waywas a fluidized-zone floor system.Weve divided the silos concrete floorinto several zones, each containing anaeration pod. When its time to unloadthe silo, air enters a pod and fluidizesthe material above it. A stationarynozzle similar to those used to unloadbig ships sucks the fluidized fly ashout of the fluidized zone. Piping at-tached to the nozzle drops the fly ashinto a vacuum collector. Then anotherpod is fluidized and a nozzle sucks outthe material from that zone. Thisprocess continues until the requiredamount has been removed. When thecollector vessel is full, a valve opens to

a pressure vessel below the vacuumcollector and material flows by grav-ity into it. Then that valve closes and acompressor pressurizes the pressurevessel (also called a transfer vessel).The pressure blows the fly ash over toa loadout silo.

Lister says the unloading system is aneconomical design because it allowsthe silo to be placed on the ground in-

stead of up in the air, making vesselsupport easier than if the silo were de-signed to stand on legs.

Benefitting from the new system

The new fly ash storage system hasbeen up and running since early 2005and has had no problems. L.B. Indus-trial Systems is pleased with the silo itchose and its supplier. What we likeabout this companys tanks, Lister

says, is the simplicity of their designand their ease of maintenance. We al-ways want to make things as easy aspossible for our customers and avoidinterruption of their process. Wevestayed with this silo supplier for manyyears because they make a good,well-engineered, economical tank,and theyre willing to help us fix any

problems that might arise.

Rogers agrees: Weve worked withthe supplier for many years. Theyre avery creative company. Theyre will-ing to think outside the box and findout what the customer actually wantsand then design the system that willaccomplish that. PBE

Note: To find other articles on thistopic, look under Storage inPowderand Bulk Engineerings comprehen-sive article index at www.powderbulk.com and in the December 2004issue.

Colum bia n TecTa nk, Parsons, KS

6 2 0 - 4 2 1 - 0 2 0 0

www.columbiantectank.com

L.B. Industrial Systems,

San A ntonio, TX

2 1 0 - 3 4 4 - 2 0 0 9

www.lbindustrialsystems.com


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Georgia Power CompanyPlant SchererJuliette, Georgia

Two 818 MW units (units 3&4) wereconverted from wet sluicing to dry handlingof class C fly ash. Four collectors and two1000-ton silos Rail & Truck loadout. Fly ashconditioning and road base production.

LB IndustrialSystems, LLC,has sinceprovided detaileddesign for theconversion ofunits 1&2, supplyof selectedequipment for theproject, andEngineering,Procurement andConstruction of a

10,000 ton flyash storage tankand pneumaticash recoverysystem.


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Georgia Power Company

Plant Scherer10,000 Ton Tank Fly Ash Tank

Juliette, Georgia

LB Industrial Systems designed, supplied and installed this 10,000 ton capacity boltedand gasketed tank for the storage of class C fly ash. The tank receives ash from thepower plant by pneumatic (pressure) transfer system. Transfer air is vented through aroof mounted bin vent filter. Ash is recovered by a floor mounted LB vacuum retrievalsystem which uses an array of aeration elements and vacuum nozzles to aerate and pullthe ash to the associated vacuum filter/collector (foreground). The ash is transferred bypressure to another silo in the plant for truck and rail loading.


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Fly Ash Mass Storage

Vacuum Reclaim System


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Coleto Creek Power StationFannin, Texas

A 1200 ton capacity fly ash silo and twovacuum/pressure dense phase transfersystems (4000 foot transfer distance)were installed in 1994 in response to aSargent and Lundy Bid Specification.

The Precipitator has recently beenreplaced by a baghouse. LB wascontracted to extend the vacuum side ofthe system to the new baghouse hoppers.


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SUPPLEMENTAL SILO

LB designed and installed a secondfly ash storage silo for Coleto Creekin 2006. The silo was built for theash marketer as supplementalstorage.

The silo is a 1000 ton capacity bolted

and gasketed tank with a 60 conebottom. Fly ash from the plantconveying pipeline can be diverted toeither silo. Fly ash can then be re-conveyed from the new silo to the oldsilo for loadout into trucks.


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Duke Energy CompanyBelews Creek

Walnut Cove, North Carolina

This plant was converted from wet sluicingto dry handling of fly ash. Three 1000 ton

and two 130 ton silos were installed. Theexisting dilute phase pressure transfersystems were extended to the silos. Ashconditioning, rail car loading and blendingcapabilities were installed as well ascomputerized selective collection into thesilos.

A 40,000 ton capacity fly ash storage domewas constructed which incorporates a 2300ft. long two way dense phase transfersystem between the dome and the loadoutsilos.


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Mississippi Power CompanyPlant Jack WatsonGulfport, Mississippi

LB provided design, supply andinstallation for a wet-to-dry fly ashconversion of unit 5 (550 mw) and unit 4(200 mw). The project includedcollectors, transfer vessels, 1,250 feet oflow pressure ash transfer piping, a new1,500 ton silo and all associatedequipment. The system is designed tomove 66 TPH of fly ash and it exceeded

design criteria in performance tests.Commercial operation November,2003.


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Georgia Power CompanyPlant Bowen Cartersville, GeorgiaDry fly ash vacuum

collection / pressuretransfer (dense phase)equipment was installedon all four units as aresult of a competitive bidprocess. The networkedprocessor control systemprovides maximumoperating flexibility.

Fly ash for disposal is conveyed up to a mile to the Portable Ash Conditioning (PAC)Machine in the landfill at conveying rates up to 250 tons per hour in a dense phasemode. The PAC machine is a fully equipped skid mounted plant which includes a silo,baghouse, diesel generator, ash conditioner, radial stacker, aeration system,compressed air system, fuel tank, water tank, and networked control system.


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Alabama Power Company

Plant GadsdenGadsden , Alabama

LB industrial Systems provided engineering, procurement and construction for the wet-to-dry fly ash conversion of Plant Gadsden. The project included a 500-ton dry ashsilo, vacuum collector and airlock, new vacuum pump, fly ash conditioner, truck scale,foundations, piping, electrical and instrumentation. The system is designed for 20 tphof dry ash collection from two precipitators, one on the powerhouse roof and one atground level. The ash conditioner is designed to process 50 tph of ash.


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Sales silo located inthe plant. Waste flyash is dense phaseconveyed 2000 feetto the disposal silolocated in the mine.

1600-ton capacity disposalsilo is set up to load offroad dump trucks withconditioned ash at 600tons per hour without anoperator

Dry fly ash collectionsystems installed to collect100% of fly ash from fourunits. Reliability has beensufficient to allow completedisconnection of wet sluicesystem.

Alcoa/TXUPlant SandowRockdale, Texas


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Sandow Unit 4 Primary HoppersSupplemental Conveying System

Sandow is a mine-mouth Lignite plant. All of the fly ash hoppers on the four units

are served by vacuum collection systems. However, the eight primary hoppers onthe unit 4 precipitator collect half of the fly ash produced at the plant. Due to aproblem with reduced unit 4 power output while burning coal with a higher thannormal ash content; it was decided to install a supplemental fly ash conveyingsystem to serve the unit 4 primary hoppers only. Fly ash flows as-produced from amanually valved outlet near the bottom of each hopper through an airslide into atransfer vessel. When the transfer vessel is full, the vessel fill valve automaticallycloses and the vessel discharges to the silo. Each airslide serves two hoppers andeach transfer vessel serves two airslides. The system conveys fly ash at 300tph.


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An Existing Oil tank wasconverted to an 18,000 toncapacity fly ash silo. It hasbeen used for both class Cand class F fly ash. Whenloading trucks, the fly ash isrecovered continuously by theSILECTOR vacuum system.

A full truckload of fly ash ispre-weighed; eliminating theneed for a truck scale

Georgia Power CompanyPlant McDonough

Atlanta, Georgia


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Florida Power CompanyCrystal River

Crystal River, Florida

A 200 foot diameter oil tank was converted to an active bulk storage silo with a capacityto store and reclaim 40,000 tons of fly ash. This storage system was integrated into theplants fly ash handling systems.

Replaced the plants existing ashcollectors, piping and dilute phasepressure system with new largercollectors and vacuum pumps.Project included dense phasepressure transfer system to silos.Pressure conveying capacityincreased from 25 tons per hour to160 tons per hour.


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North Texas CementHouston Terminal

Houston, Texas

During a period of high local demand for cement, this facility needed to increase itsterminal throughput by 50%. A study was undertaken to evaluate the addition of a

third mass storage dome and loadout system, or alternate configurations to meet thisneed. Analysis of marine deliveries, weather trends, maintenance history, truckwaiting time, and other factors revealed that the plant needed 24 hours worth ofcement storage in the air on a continuous basis to avoid interruptions or delays in theloading process. The solution was the turnkey design and installation of two 1500-tonsteel silos with truck loading directly beneath them.


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Economizer Ash

We have installed several economizerash systems based on screwconveyors which have performed verywell over the last 20 years. Systemsare in operation at the Deely, GibbonsCreek, Northeastern and, mostrecently, the Nixon Power stations.Slow moving screws, bucket elevatorsand other mechanical conveyingequipment are well suited to thisgranular material


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International

The Little Barford (U.K.) fly ash processing facility was constructed in record time toBritish standards. Fly ash was delivered from three power stations in the Midlands byunit train. The conveying systems were capable of unloading 48 rail cars in 1hours.

Projects have also been carried out in Australia, Mexico, Israel, India and Indonesia.


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Please direct inquires to:

Gary W. BeckcomPresident, CEO/ Projects [email protected]

Richard J. DidelotManager, Sales

[email protected]

Mark S. KonzalManager, Business [email protected]

lb industrial systems brochure 2011

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