Furnaces – Utilizing powdered fuel
Patent
1983-09-08
1984-09-18
Yuen, Henry C.
Furnaces
Utilizing powdered fuel
110264, 110106, 55442, F23K 100
Patent
active
044717032
ABSTRACT:
A combustion system and method for a coal-fired furnace in which a separator-nozzle assembly divides a coal-air mixture into a first stream containing most of the coal and a second stream containing a much smaller quantity of coal. Another nozzle is provided which receives another mixture of coal and air and discharges same in a combustion supporting relation to said streams. At start up and low loads, the separator-nozzle assembly discharges a majority of the coal and air in a combustion supporting relationship and the other nozzle discharges a relatively low quantity of coal and air. At high load conditions, the other nozzle discharges a majority of the coal and air while the coal and air discharging from the separator-nozzle assembly is kept at relatively low values. A splitter is provided for receiving a coal-air mixture from a mill and splitting it into two separate mixtures.
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Schindler Edmund S.
Vatsky Joel
Foster Wheeler Energy Corporation
Kice Warren B.
Naigur Marvin A.
Wilson John E.
Yuen Henry C.
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