Development of a continuous dry coal screw feeder
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Development of a continuous dry coal screw feeder phase II. by United States. Dept. of Energy.

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Published by Dept. of Energy, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English


  • Coal slurry pipelines.,
  • Coal preparation plants.

Book details:

Edition Notes

ContributionsMistry, Dilip K., Ingersoll-Rand Research, inc.
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL15223909M

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In the Development of a Continuous Dry Coal Screw Feeder, a rotary-valvemore» Operating cost analyses comparing existing and conceptual coal feed systems were refined. A comparative evaluation of coal feed systems, based on established technical and economic criteria, indicated that the piston feeder and screw feeder concepts seem to offer. Ingersoll-Rand Research, Incorporated is developing a dry coal screw feeder under contract to the Energy Research and Development Administration for feeding coal into coal gasi- fication reactors operating at pressures up to psig. The program consists of laboratory development of " and. The overall objective of this project is the development of a mechanical rotary-disk feeder, known as the Stamet Posimetric High Pressure Solids Feeder System, to feed dry granular coal continuously and controllably into pressurized environments of up to 35 kg/cm{sup 2} ( psi). This was to be accomplished in two phases. The gravimetric feeder compensates for the variation in bulk density and feeds a fixed weight of coal in response to a boiler fuel demand. This ability to accurately weigh the coal provides significant improvement over volumetric types in terms of matching the fuel delivered by the feeder to the actual process energy required on coal fired units.

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