F - Mech Eng,Light,Heat,Weapons – 23 – C
Patent
F - Mech Eng,Light,Heat,Weapons
23
C
110/15
F23C 7/00 (2006.01) F23D 1/00 (2006.01) F23K 3/02 (2006.01)
Patent
CA 1097984
DIRECT IGNITION OF A FLUCTUATING FUEL STREAM Abstract of the Disclosure: A method of direct ignition of pulverized coal to furnish energy for warm-up or low load operation of a coal burning furnace comprises forming a fuel stream consisting of a mixture of pulverized coal and air, the fuel stream having an air to coal ratio and/or a flow velocity which fluctuates. The fluctuating fluid stream is introduced into a combustion area where the coal is ignited by an energy source. The fluctuation of the air to coal ratio and/or the fluctuation of the flow speed provide for the air to coal ratio and/or the flow speed to be swept through a range of values which includes the optimum conditions for ignition.
322008
Laflesh Richard C.
Smith Donald A.
Combustion Engineering Inc.
Smart & Biggar
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