Coal-Fired Power Generation
Put Precision solutions to work in your power generation operations to resolve problems and gain efficiencies.
We get your challenges. When others are turning their backs on the coal industry, we’re doubling down to help our coal customers to keep operating efficiently, to meet growing and complex environmental regulations, and to generate power profitably. We have dozens of smarter solutions that can help you operate more reliably with lower costs.
Rotary valves should NEVER be the weakest link in your emission control and DSI environmental systems. Precision understands the imperative of precise, reliable injection of lime, trona or activated carbon to keep these systems performing as specified. Our solutions offer longer life, efficient waste-free use of materials.
Move lignite without sticky build-up that plagues competing units. No matter where you’re feeding lignite into your process, Precision has rotary valve and rotary feeders that feed consistently and reliably, minimizing the potential for clogs and maximizing process throughput.
Working with super abrasive pet coke? No problem! Unique solutions and high-abrasive environments are our specialty. Let us recommend a solution that lasts longer and requires less maintenance.
Precision’s Done Right, On-Time Guarantee™ = faster deliveries, fewer spares. When it’s time to rebuild or replace, Precision gets you the right solution, on YOUR schedule. No need to wait 10+ weeks for a replacement. We’re nearby and ready to go to work for you. No need to carry excess spares.
Coal-Fired Power Generation Applications
Pneumatic Conveying Rotary Valves
REQUIREMENTS
Metering and airlock function or solely airlock function. Inject pulverized coal, pet coke, or lime into a pneumatic transport line.
PRECISION SOLUTION
Severe Duty version of the PMV-8 to PMV-20 for most applications.
Ultra Duty version of the PMV-8 to PMV-20 for abrasive applications.
Transitions for slide-out/slide-in replacement of competitive valves
Pneumatic line injectors
KEY DIFFERENTIATORS
Tight tolerances minimize blow-by and maintains pneumatic system performance.
2X – 3X useful life over commodity, cast-iron valves is typical.
PRECISION PRODUCT
Barge Unloading System Rotary Feeder
REQUIREMENTS
Used at the discharge of a cyclone receiver in a vacuum unloading system for lime. Rotary feeder functions as an airlock discharging to a belt conveyor or pneumatic line.
PRECISION SOLUTION
Modified version of the PMR feeder with no knife
Rounded rotor pockets
Upgraded Tri-Braze barrels for wear resistance
Special sealing arrangement in endbells
KEY DIFFERENTIATORS
Designs for high capacity systems up to 250 TPH
Years of operation between rebuilds
PRECISION PRODUCT
Rotary Valves for Feeding Lignite
REQUIREMENTS
Applications where typical moisture content is > 10%.
Meter lignite into the boiler and minimize false air introduction into the boiler.
PRECISION SOLUTION
Dual-rotor design that mechanically “sweeps” the rounded pockets on the upper / product rotor to prevent material build-up.
KEY DIFFERENTIATORS
Handles high-moisture coal without costly operator intervention for clean-out.
Maintains consistent feed rate to optimize burn.
PRECISION PRODUCT
Pollution Control System Rotary Valves – ACI
REQUIREMENTS
Systems injecting activated carbon, BPAC, or other sorbents for treating flue gas stream for removal of mercury or other heavy metals.
PRECISION SOLUTION
Ultra duty version of the PMV-8 to PMV-12
Pneumatic line injectors
Nord inverter-duty drive motors
KEY DIFFERENTIATORS
Extra durability for the abrasiveness of activated carbon.
Tight tolerances minimize blow-by and maintain pneumatic system performance.
2X – 3X useful life over commodity, cast-iron valves is typical.
PRECISION PRODUCT
Pollution Control System Rotary Valves – DSI/FGD
REQUIREMENTS
Systems injecting lime, trona, fly ash, bottom ash, or other sorbents for treating flue gas discharge for SOx or NOx.
PRECISION SOLUTION
Severe-duty version of the PMV-8 to PMV-14
Pneumatic line injectors
Nord inverter-duty drive motors.
KEY DIFFERENTIATORS
Durability that handles lime or trona.
Tight tolerances minimize blow-by and maintains pneumatic system performance.
2X – 3X useful life over commodity, cast-iron valves is typical.
PRECISION PRODUCT
Let our applications specialists help you with your extreme-duty bulk material handling needs.