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冲天炉看火门的主要作用有三个:1．加底焦时用铁棒通过看火门,将焦炭上下左右搅动,使底焦结实;2．察看炉内焦炭燃烧和铁水熔化的情况;3．当靠近风口的焦炭及炉渣被冷风吹黑
Cupola to see the main function of the fire door there are three: 1. At the end of coke with iron rods through the fire door, the coke up and down about stirring so that the end coke strong; 2. Look at the furnace coke combustion and molten iron melt situation; 3. The coke and slag near the tuyere are blown by the cold wind