Pulverulent material metering and delivery system and method

Details Pulverulent material metering and delivery system and method Pulverulent material metering and delivery system and method

1976-09-27

1978-04-25

Peters, Jr., Joseph F.

Cutlery

302 51, B65G 5304

Patent

active

040859762

ABSTRACT:
A metering and delivery system for feeding finely powdered coal to a combustion chamber includes a hopper containing finely ground coal, a vertical feed pipe extends from the hopper and a horizontal metering conduit is connected to the lower end of the feed pipe so that the coal provides a surface of repose in the metering conduit below an air flow opening with a bleed opening being downstream of the air flow opening. A venturi jet housing provides suction on the metering conduit drawing ambient air into the openings to entrain coal for injection by an injector lance into a combustion space. Metering of the coal is provided by inversely operated valves through which ambient air flows to the openings in the metering conduit.

REFERENCES:
patent: 2116715 (1938-05-01), Rose
patent: 2137526 (1938-11-01), Collins
patent: 2695265 (1954-11-01), Degnen
patent: 3362405 (1968-01-01), Hazel
patent: 3854634 (1974-12-01), Hart

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