铸造生产中,冲天炉是主要的铸铁熔炼设备,在我国得到广泛应用,仅机械工业中就有6500台之多,约占铸铁熔炼设备的95％。就工业发达国家来看,从节省电能和降低铸件成本等因素出发,仍占有很大比例(苏联90％、美国70％、日本50％)。冲天炉熔炼过程中由于风机的强制送风、焦炭的燃烧、炉衬的侵蚀以及炉料夹 In the casting production, the cupola is the main cast iron smelting equipment, which has been widely used in our country. There are 6,500 machines in the machinery industry, accounting for about 95% of the cast iron smelting equipment. In terms of industrialized countries, a large proportion (90% in the Soviet Union, 70% in the United States and 50% in Japan) still takes a large proportion from the factors of saving electricity and reducing the cost of casting. Cupola smelting process due to forced air blower, coke combustion, the erosion of the lining and the charge folder