F - Mech Eng,Light,Heat,Weapons – 23 – K
Patent
F - Mech Eng,Light,Heat,Weapons
23
K
110/18
F23K 1/00 (2006.01) F23K 3/02 (2006.01)
Patent
CA 1230522
COMBUSTION SYSTEM AND METHOD FOR A COAL-FIRED FURNACE UTILIZING A LOUVERED LOW LOAD SEPARATOR-NOZZLE ASSEMBLY AND A SEPARATE HIGH LOAD NOZZLE ABSTRACT OF THE DISCLOSURE A combustion system and method for a coal-fired furnace in which a splitter is provided in the main conduit leading from the mill for receiving the stream of coal and air and splitting it into two separate streams. One stream from the splitter is connected to a separtor-nozzle assembly which divides the stream into a first mixture containing substantially coal and a second mixture con- taining substantially air. Another nozzle is connected to the splitter for receiving the other stream of coal and air. At start up and low loads, the separator-nozzle assembly discharges a majority of the coal and air in the two mixtures in a combustion supporting relationship and the other nozzle discharges a relati- vely low quantity of coal and air in a combustion supporting rela- tionship with the two mixtures. 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 rela- tively low values.
460985
Schindler Edmund S.
Vatsky Joel
Foster Wheeler Energy Corporation
Meredith & Finlayson
LandOfFree
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