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为了支援社会主义建设节焦节煤,我厂广大职工奋发图强,自力更生,克服了重重困难,对冲天炉进行了改造。经过一年多生产实践,获得了较好的效果。冲天炉的热风温度一般在180~230℃之间。出铁温度在层焦比为1∶13~1∶14时(包括接力焦)一般在140O℃以上(光学高温计读数,未经校正,以下相同),最高温度为1430℃,炉内硅、锰烧损在一般正常范围内,增炭率没有明显增加。与冷风炉相
In order to support the festival of building coal, the workers in our factory worked hard, self-relied, overcome difficulties and transformed the cupola. After more than a year of production practice, obtained good results. Cupola hot air temperature is generally between 180 ~ 230 ℃. Tapping iron temperature in the layer coke ratio 1:13 ~ 1:14 (including the relay coke) generally above 140O ℃ (optical pyrometer readings, uncorrected, the same below), the maximum temperature of 1430 ℃, furnace silicon, Manganese loss in the normal range, no significant increase in carbon rate. And cold stove phase