Stock Coal and Limestone Feed Systems
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Stock Coal and Limestone Feed Systems - 1

schenckprocess group Stock Coal and Limestone Feed Systems Powering Industry Forward we make processes work

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Stock Coal and Limestone Feed Systems - 2

Coal Feed Systems Powering industry forward with the world’s most trusted and dependable bulk material handling and environmental systems. Five Ways to Use Stock Feed Systems 1. The majority of worldwide power boilers use pulverized coal. Stock High Pressure Gravimetric Feeders reliably and accurately deliver raw coal to each pulverizer in exact response to boiler fuel demands. 2. Utilities and Independent Power Producers specify Fluidized Bed Boilers for a growing number of installations. Stock Low Pressure Gravimetric Feeders deliver traditional coals, lignites and refuse coals directly...

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Stock Coal and Limestone Feed Systems - 3

High Pressure Feeders Coal / Limestone Batch Scales Non-Pressurized Feeders Conical Distributor Electrostatic Precipitator

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Stock Coal and Limestone Feed Systems - 4

Stock Fuel Feed Systems Ensure Reliable, Accurate and Uninterrupted Material Flow Why Gravimetric Feeding of Coal? Because of its non-homogenous nature, coal properties constantly vary with respect to sizing differences and the adverse impact of moisture on heating value, flow characteristics and density. The effect of moisture on coal has been studied for many years by Stock, research institutes and other experts who have published data illustrating how coal bulk density changes with different total moisture levels. Since there is currently no effective way to measure BTU heat content flow...

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Stock Coal and Limestone Feed Systems - 5

Summary of Benefits Fuel savings through improved boiler efficiency. Improved combustion efficiencyloss on ignition. Improved pressure and superheat control. Less slagging and fouling. Stability and improved response of combustion controls. Less Nx through better control of excess air. Improved pulverizer/cyclone/combustor performance. Less corrosion. educed perations aintenance costs. Safety with NFP 5 psi body shell. Economical compact design. Boiler Fuel Input Deviation % Deviation of Boiler Demand Annual Savings Potential with Stock Gravimetric Feeders ___ Gravimetric ___ Volumetric...

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Stock Coal and Limestone Feed Systems - 6

Weighing Accountability Stock Equipment Company’s DISCNT® Tersus (DT-9) feeder controller provides accurate and reliable weigh feeding by utilizing the latest in microprocessor technology. The DT-9 controller maintains all the functionality of past feeder controls, but combines it with updated technology to provide the new standard in weigh feeding control. The interactive touch-screen display shows a graphical representation of the feeder in operation with details pertaining to the feedrate, setpoint, belt speed, belt load and the total weight of the material. The DT-9 supports fieldbus...

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Stock Coal and Limestone Feed Systems - 7

Features include ❖ Large, color, graphic touch screen display. ❖ Dual processors for added capability. ❖ Fieldbus communications options. ❖ Flexible design allows for configurable inputs/outputs. ❖ EasyServe PC interface for configuration back-up and restore. ❖ Simple access to information from control room. ❖ Integrated clean-out chain control. ❖ Maximum/minimum feedrate limit setting. ❖ Modbus, Profibus, Ethernet support. ❖ Scheduled maintenance reminder. ❖ Belt slip detection algorithm. ❖ Moisture compensation Input. ❖ Internal PID control settings. Stock Pressurized Coal Valve...

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Stock Coal and Limestone Feed Systems - 8

Stock® Offers Many Options to Solve Your Fuel Feed Problems The ULTIDS® High Pressure Gravimetric (HPG) Feeder is the next generation in Stock Equipment’s line of feeder models. Stock has retained the proven gravimetric feeding technology which has been providing reliable and accurate performance in power plants since the 193s. This dependable technology coupled with updated design elements makes the ULTIDS HPG feeder the prime choice for material feeding solutions. The tension roll and active tracking station maintain belt alignment. A reversable inlet promotes mass flow even in reverse...

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Stock Coal and Limestone Feed Systems - 9

Composite / Dual Belt For Limestone Feed to FGD Systems or ther Inert aterial pplications, Stock has developed feeders for controlled feed applications of bulk materials, utilizing the most advanced weighing and delivery technology in the material handling industry. These feeders, the Stock Non-Pressurized Gravimetric Feeder NPG) and the D offer dust tight operation with weighing accuracy to within .5 %. Standard belt widths are 24“ to 54“ while special designs up to 84“ are available. Feed rates up to 5 tons per hour are standard with higher capacities available. The historic difficulty in...

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Stock Coal and Limestone Feed Systems - 10

PASS – Service you can rely on. PASS: Process Advanced Service System Working closely with technical and production specialists from diverse industries, we’ve created support programs to ensure efficient, reliable performance year after year. Because we design, manufacture, install and commission our products, we have the expertise it takes to back our equipment with a lifetime of support. With genuine Stock replacement parts, on-site service engineers for field service support, and managing complete turnkey projects, Stock has you covered. Quality and reliability are the cornerstones of...

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Stock Coal and Limestone Feed Systems - 11

Individual, reliable, competent - Industry speific solutions to meet your requirements: £ FitnessChecks, Inspections & Reporting £ Equipment & ControlsTraining (Site Specific) £ ChainTesting for Feeder Accuracy £ Spare Parts Quoting & Inventory Programs £ Feeder Upgrades, Conversions & Rebuilds £ Turnkey & Installation Services £ Upgrade Kits & Installation £ Equipment Upgrades & Conversions & To meet the expanding needs of our customers. Stock pro- vides field installation of our equipment resulting in single point responsibility for the entire project. No one knows more about our...

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Stock Coal and Limestone Feed Systems - 12

schenck process group Stock Equipment Company is the global market leader of solutions for the power industry, supplying complete bulk material handling and environmental system solutions. Stock Equipment Company develops, manufactures and markets a full range of solutions, products and systems on the basis of combining process engineering expertise, reliable components and field-proven technology. Stock Equipment Company stock, sal es@ stockequ ipment.com we make processes work

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