Biomass EXTREME-DUTY BULK MATERIAL HANDLING LEARN MORE AT PREMACH.COM/BIOMASS Parts, technicalservice, andequipmentrebuilding Service treatments ensurelongerlife Materials, manufacturingtechniques,andengineered surface Maximum Durability Transitions and othermodificationstoreplace existing equipment Custom Engineering Flexible andfast-moving Focused onSolutions Easy communicationsandfastdelivery Made intheUSA Extreme-Duty Bulk Material Handling

ApplicationsBiomass Maximize Uptime Increase Throughput Improve Productivity

Biomass-fired electric power generation is a demanding business that places a premium on uptime. Precision has been supplying reliable, designed-for-purpose rotary feeders, screw conveyors, and rotary valves for this industry for decades. We offer a full portfolio of solutions with a proven track record of performance. Biomass

Founded in 1977, Precision has more than 40 years of experience manufacturing of extreme duty dry-bulk material handling equipment.

We specialize in solving the most difficult application challenges:

abrasive materials elevated temperatures corrosive materials high-volume throughputs

Our solutions span a variety of industries, including cement, wood products, mineral processing, pulp and paper, biomass-fired power generation, and coal-fired power generation. Applications Key Differentiators Precision Solution Precision Product Requirements Application Low power consumption Economically rebuildable durability • Outage-to-outage starveorflood movementdoesn’t • Consistentfuel uptime Boiler efficiency& Custom troughdesigns shafts screws withoversized Bushed-and-drilled max wearresistance multi-pitch flightsfor AR-400 orTri-Braze Transfer Screw discharging intoaFuel from thefuelbinsand mildly abrasivefuel uniformly sized,and Withdrawing dry, Standard Fuel Screws Fuel Bin MULTI-PITCH SCREWS

Screws Fuel Bin Challenging Fuel Low power consumption Economically rebuildable durability • Outage-to-outage move hard-to-handlefuels • Conedesignmakes uptime Boiler efficiency& shafts screws withoversized Bushed-and-drilled of theconedesign Significant engineering cone multi-pitch flightsona AR-400 orTri-Braze, or bridging often pronetorat-holing fuels, thetypewhichare oversized orlow-quality Fuel BinScrewsfor CONE SCREWS MULTI-PITCH

DUTY TRANSFERSCREWS SINGLE-SPAN EXTREME- Screws Fuel Transfer Low powerconsumption Economically rebuildable alwaysflowing • Extreme-duty;fuelis feedsmoothly • Hanger-freescrews uptime Boiler efficiency& modifications Wear-resistant pipe flights Super-C orTri-Braze hangers flow uninterruptedby Lengths to36’with boiler. meters thefuelinto to aRotary Feederwhich the boilerviaachuteor Discharging directlyinto conveying totheboiler. Fuel BinScrewsand Receiving fuelfrom Fuel Handling Feeders Rotary types offuels Compatible with many durability Outage-to-outage prepared fuel unprepared orminimally Adaptable to Rebuildable drive packages Upgraded barrelsand oversize fuel helical rotorshearsoff Stationary knifewith feeders perboiler the boiler;often2-3 device tofeedfuelinto Metering andairlock PMR ROTARY FEEDERS reduces capitalcost multiple times- Can berebuilt induction intoboiler external air Plug-feed minimizes the screw manifold forcooling Internal water stainless materials High-temperature special bearings Cantilevered; combustion zone 1200-1400° F directly intothe discharge fuel the boilerwallthat installed through Plug-feed screws Screws Boiler Feed rebuildable Economically consumption Low power rebuilding operation before Minimum two-year or variableloading Designed forlight resistant troughs temperature Abrasion and resistance for maxwear or Tri-Braze flights Full-pitch, AR-400 the dustcollector abrasive awayfrom F orless),fine, and which iswarm(250° Transporting flyash, Screws Fly Ash rebuildable Economically consumption Low power rebuilding operation before Minimum two-year glass clinkers handle chunks or Engineered to trough construction Abrasion-resistant, resistance for maxwear or Tri-Braze flights Full-pitch, AR-400 clinkers may containglass and abrasive 700° F),granular, ash ishot(600- drag chain;bottom traveling grateor from theboilerby boiler; ashispulled ash awayfromthe Transporting bottom Ash Screws Bottom costs lowers maintenance Modular design ash particularly bottom in ashsystems- which arecommon high temperatures Adaptable tovery build-up inthevalve plates prevent Drop-through wear bearings shaft sealsand High-temperature PMV-12 valves of thePMV-8 to Severe Dutyversion applications bottom-ash collection and Both fly-ashdust Valves Ash Rotary performance pneumatic system by andmaintains minimize blow- Tight tolerances or activatedcarbon handles lime, trona, Durability that drive motors Nord inverter-duty injectors Pneumatic line PMV-10 of thePMV-8 or Severe Dutyversion or NOx discharge forSOx for treatingfluegas or othersorbent fly ash,bottom activated carbon, lime, trona, Systems injecting Valves Rotary Fuel Handling Ash Handling Pollution Control

Fuel Bin Fuel Bin Fuel Transfer Rotary Boiler Feed Fly Ash Bottom Ash Rotary Rotary Screws Screws Screws Feeders Screws Screws Ash Screws Valves Valves Standard Fuel Challenging Fuel

Withdrawing dry, Fuel Bin Screws for Receiving fuel from Metering and airlock Plug-feed screws Transporting fly ash, Transporting bottom Both fly-ash dust Systems injecting uniformly sized, and oversized or low-quality Fuel Bin Screws and device to feed fuel into installed through which is warm (250° ash away from the collection and lime, trona, mildly abrasive fuel fuels, the type which are conveying to the boiler. the boiler; often 2-3 the boiler wall that F or less), fine, and boiler; ash is pulled bottom-ash activated carbon, from the fuel bins and often prone to rat-holing Discharging directly into feeders per boiler discharge fuel abrasive away from from the boiler by applications fly ash, bottom ash, discharging into a Fuel or bridging the boiler via a chute or directly into the the dust collector traveling grate or or other sorbent Transfer Screw to a Rotary Feeder which 1200-1400° F drag chain; bottom for treating flue gas meters the fuel into the combustion zone ash is hot (600- discharge for SOx boiler. 700° F), granular, or NOx and abrasive and may contain glass clinkers

WATER-COOLED ASH TRANSFER CONVEYORS PMV MODULAR ROTARY VALVES SCREWS

AR-400 or Tri-Braze AR-400 or Tri-Braze, Lengths to 36’ with Stationary knife with Cantilevered; Full-pitch, AR-400 Full-pitch, AR-400 Severe Duty version Severe Duty version multi-pitch flights for multi-pitch flights on a flow uninterrupted by helical rotor shears off special bearings or Tri-Braze flights or Tri-Braze flights of the PMV-8 to of the PMV-8 or max wear resistance cone hangers oversize fuel for max wear for max wear PMV-12 valves PMV-10 High-temperature resistance resistance Bushed-and-drilled Significant engineering Super-C or Tri-Braze Upgraded barrels and stainless materials High-temperature Pneumatic line screws with oversized of the cone design flights drive packages Abrasion and Abrasion-resistant, shaft seals and injectors shafts Internal water temperature trough construction bearings Bushed-and-drilled Wear-resistant pipe Rebuildable manifold for cooling resistant troughs Nord inverter-duty Custom trough designs screws with oversized modifications the screw Engineered to Drop-through wear drive motors shafts Designed for light handle chunks or plates prevent or variable loading glass clinkers build-up in the valve

Boiler efficiency & Boiler efficiency & Boiler efficiency & Adaptable to Plug-feed minimizes Minimum two-year Minimum two-year Adaptable to very Durability that uptime uptime uptime unprepared or minimally external air operation before operation before high temperatures handles lime, trona, • Consistent fuel • Cone design makes • Hanger-free screws prepared fuel induction into boiler rebuilding rebuilding which are common or activated carbon movement doesn’t hard-to-handle fuels feed smoothly in ash systems - starve or flood move • Extreme-duty; fuel is Outage-to-outage Can be rebuilt Low power Low power particularly bottom Tight tolerances • Outage-to-outage • Outage-to-outage always flowing durability multiple times - consumption consumption ash minimize blow- durability durability reduces capital cost by and maintains Economically rebuildable Compatible with many Economically Economically Modular design pneumatic system Economically rebuildable Economically rebuildable types of fuels rebuildable rebuildable lowers maintenance performance Low power consumption costs Low power consumption Low power consumption Precision Machine and Manufacturing, Inc.

1290 S. Bertelsen Road Eugene, OR 97402

541-484-9841 premach.com [email protected]