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上钢五厂可用复吹工艺单渣法吹炼含 P量最高达0.70%,平均为0.265%的中磷铁水,经过7个炉役,3028炉次试验,石灰用量减少10—15%。脱 P、脱 S 能力反而有所提高,吨钢铁耗减少15kg/T 以上,与同期顶吹工艺相比,综合经济效益好,可降低炼钢成本4.5元/T。国内首创了复吹底枪调换技术,为延长复吹操作炉吹创造了条件,应用穿芯定位法制作底吹喷枪,造价低,制作精度高,有一定特色。已于84年10月12日至13日由上海市冶金局召开有关部门参加的鉴定会
On the steel plant Wuzhe can be double-blowing process single-slag blowing blowing P containing up to 0.70%, an average of 0.265% of the phosphorus in the hot metal, after seven furnaces, 3028 heat test, the amount of lime reduced by 10-15%. On the contrary, the ability to take off P and take off S has been improved instead of reducing the consumption of steel by more than 15kg / T. Compared with the top-blowing process in the same period, the comprehensive economic benefit is good, which can reduce the cost of steelmaking by 4.5 yuan / T. Domestic pioneer blowing blown floor gun exchange technology, to extend the blower furnace operation to create the conditions for the blow, the application of core positioning method at the end of blowing gun, low cost, high precision, has a certain characteristics. Has been in October 12, 1984 to 13 by the Shanghai Metallurgical Bureau held the relevant departments to participate in the appraisal