Furnaces – Fuel feeders – Blower
Patent
1977-12-29
1979-11-06
Sprague, Kenneth W.
Furnaces
Fuel feeders
Blower
110263, F23K 302
Patent
active
041731891
ABSTRACT:
An ignition, warm-up and low-load-stabilization system for furnaces fired by pulverized coal. In conjunction with a system in which pulverized coal is sent directly from a coal mill to a load-bearing nozzle and in which combustion air is brought to the nozzles from an air preheater that uses hot furnace gases to warm the combustion air, ignitor nozzles are provided that are supplied by pipes bearing coal from which the drying air has been separated. Combustion air for the ignitor nozzles is heated by an independent heat source that heats the combustion air or a portion thereof to a temperature higher than that of the air supplied by the air preheater. Such a coal-fired ignitor burner can replace oil or gas-fired ignitors and warm-up guns and thereby reduce the amount of oil or gas used in ignition, warm-up, and low-load stabilization.
REFERENCES:
patent: 1628609 (1927-05-01), Newhouse
patent: 2159849 (1939-05-01), Graemiger
patent: 2841102 (1958-07-01), Marshall
patent: 3393965 (1968-07-01), Vaughan
patent: 3395657 (1968-08-01), Schuss
patent: 3400921 (1968-09-01), Hemker
patent: 3602164 (1971-08-01), Reintjes
patent: 3788796 (1974-01-01), Krippene et al.
Combustion Engineering Inc.
Sprague Kenneth W.
LandOfFree
Boiler cold start using pulverized coal in ignitor burners does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Boiler cold start using pulverized coal in ignitor burners, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boiler cold start using pulverized coal in ignitor burners will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-458332