FIELD: power engineering. SUBSTANCE: nozzles 3,4,5 are installed in duct 1, in its bottom, middle, and top parts, respectively; distance between external surface of pulverized-coal-feed nozzles 3 and envelope of external surfaces of closely mounted gas-feed nozzles 4 as well as between envelope of external surfaces of gas nozzles 4 and external surface of additional air feed nozzles 5 is 0.07-0.2 of height of duct 1; heightwise distance between surface of closest pulverized-coal-feed nozzles 3 is 0.05-0.2 of height of duct. EFFECT: enlarged functional capabilities. 10 dwg
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Authors
Dates
1996-04-10—Published
1993-10-19—Filed