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以往锌精馏熔化炉都是火焰直接加热的,它的优点是:火焰直接加热锌液面,热效率高,结构简单。但它的缺点是锌氧化严重,产出率低,金属损耗大,而且扒渣量大,劳动条件差,锌挥发随烟气带出,污染环境。根据以上情况,葫芦岛锌厂于1977年10月在7~#炉上,将火焰直接加热熔化炉改为间接加热熔化炉,采用槽形碳化硅拱顶结构,将火焰与锌液隔
Zinc distillation furnace in the past are the direct flame heating, and its advantages are: direct heating of zinc flame liquid surface, high thermal efficiency, simple structure. However, its disadvantages are serious zinc oxidation, low output rate, large metal loss, large amount of slag removal, poor working conditions, and zinc volatilization with the flue gas to pollute the environment. According to the above, Huludao Zinc Plant in October 1977 in 7 ~ # furnace, the flame directly heated melting furnace changed to indirect heating melting furnace, the use of trough-shaped silicon carbide dome structure, the flame and the zinc liquid compartment