F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/54
F27B 1/10 (2006.01) F27B 1/26 (2006.01)
Patent
CA 1061550
CUPOLA FURNACE WASTE GAS RECUPERATIVE SYSTEM AND METHOD FOR OPERATING SAME Abstract of the Disclosure An improved cupola furnace waste gas recuperative system and method for collecting waste furnace gases, cleaning them, and burning same in a recuperator-heat exchanger for preheating incoming furnace blast air. The improvement includes a method and means for the recirculation of waste cupola furnace gases through a portion of the scrubber or cleaning system for the purposes of; controlling the pressure at the furnace gas take-off chamber, preventing gases from escaping through the charging hopper, preventing excess in- draft of air, and maintaining cleaning efficiency at any gas flow rate. The improvement also includes a control means whereby the actual top gas pressure is regulated as a function of the incoming blast air.
313365
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