This invention sets forth a double-acting piston, which carries a floating piston, and which is reciprocated in a housing, for feeding coal to a high pressure gasifier system. The housing has a plurality of solids (for instance: coal) in-feeding ports and a single discharge port, the latter port being in communication with a high pressure gasifier system. The double-acting piston sequentially and individually communicates each of the in-feeding ports with the discharge port. The floating piston both seals off the discharge port while each in-feeding port is receiving coal or the like, to prevent undue escape of gas from the gasifier system, and translates in the housing, following a discharge of coal or the like into the discharge port, to return gas which has been admitted into the housing back into the gasifier system. (ERA citation 05:017344)
Solids Feeder Apparatus
1977
6 pages
Report
Keine Angabe
Englisch
DC feeder voltage control apparatus and DC feeder voltage control system
Europäisches Patentamt | 2015
|Europäisches Patentamt | 2017
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