High pressure rotary piston coal feeder for coal gasification ap

Details High pressure rotary piston coal feeder for coal gasification ap High pressure rotary piston coal feeder for coal gasification ap

1976-08-12

1977-05-24

Lindsay, Jr., Robert L.

Gas: heating and illuminating

Generators

Cupola

48 77, 202262, 214 17B, 222194, C10J 330, C10J 350

Patent

active

040253171

ABSTRACT:
The subject development is directed to an apparatus for feeding pulverized coal into a coal gasifier operating at relatively high pressures and elevated temperatures. This apparatus is a rotary piston feeder which comprises a circular casing having a coal loading opening therein diametrically opposed from a coal discharge and contains a rotatable discoid rotor having a cylinder in which a reciprocateable piston is disposed. The reciprocation of the piston within the cylinder is provided by a stationary conjugate cam arrangement whereby the pulverized coal from a coal hopper at atmospheric pressure can be introduced into the cylinder cavity and then discharged therefrom into the high-pressure gasifier without the loss of high pressure gases from within the latter.

REFERENCES:
patent: 1372765 (1921-03-01), Miller
patent: 1970153 (1934-08-01), Steere

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