High pressure rotary piston coal feeder for coal gasification applications
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.
- Assignee:
- Energy Research and Development Administration
- Patent Number(s):
- US 4025317
- OSTI ID:
- 5390490
- Resource Relation:
- Patent File Date: Filed date 12 Aug 1976; Other Information: PAT-APPL-713,751
- Country of Publication:
- United States
- Language:
- English
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