FIELD: power engineering. SUBSTANCE: boiler-utilizer has gas duct 1 of rectangular cross- section and provided with separating shield 2. Shield 2 is inclined to define passageways 3 and 4 of variable cross-section. Passageway 3 is a lifting passageway and passageway 4 is a lowering one. Rows of blinds 5 are mounted inside the passageways. The distance between the blinds of one row decreases in the direction of narrowing of the passageway. EFFECT: enhanced efficiency. 4 dwg
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Authors
Dates
1995-07-09—Published
1992-10-08—Filed