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内热式冲天炉热风炉胆的使用寿命,一般不超过2000h。而对固定炉缸冲天炉的热风炉胆的更换,则是件既费时又费力的工程,因为这种冲天炉从炉底至烟囱的各部分均用螺栓固定成一个整体。三明重型机器厂采用如下方法更换一座熔化率3t/h固定炉缸冲天炉的热风炉胆,只需两天的时间。其具体工作程序是:将炉胆下部炉筒的耐火炉衬拆除约600mm高,用气割将拆除
Thermal Blast Furnace Blast furnace life, generally not more than 2000h. The replacement of the hot blast furnace for a fixed hearth cupola is a time-consuming and labor-intensive project, as the parts of the cupola from the bottom of the furnace to the chimney are bolted together. Sanming Heavy Machinery Plant uses the following method to replace a melting rate of 3t / h fixed hearth furnace hot air furnace gall, just two days time. The specific working procedure is: the bottom of the furnace furnace refractory lining removed about 600mm high, gas cutting will be removed