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在一个相当长的时期内,工业发达国家生产炼钢生铁时,曾试图降低锰矿加入量,其目的是为了降低生铁的生产成本。为此,捷克钢铁研究院与一些冶金厂合作,试验研究了上述问题。本文将介绍在特薪聂茨钢铁公司取得的试验结果及其生产对比数据。 1986年11月和1987年9月,在特薪聂茨钢铁公司进行了两个周期的生产性试验。每个周期的试验为350炉次。为了对比,又于1986年10月观察、收集和分析了一个月的生产数据。第一个生产试验周期的目的是为了了解氧气转炉生产工艺的变化情况;计划将生铁中Mn含量降低0.20％,即将生铁中含Mn量从0.70％降到0.50％,实际已降到0.426％。
In a fairly long period of time, when industrialized countries produced steel-making pig iron, they tried to reduce the amount of manganese ore they added in order to reduce the production cost of pig iron. To this end, the Czech Iron and Steel Institute and some metallurgical plants, experimental study of the above problems. This article describes the test results and production comparison data obtained at Special Paynees Steel. In November 1986 and in September 1987, a two-cycle productive trial was carried out at special-duty Steelnet. The test is 350 cycles per cycle. For comparison, one more month of production data was observed, collected and analyzed in October 1986. The purpose of the first production test cycle is to understand the changes in the oxygen converter production process. It is planned to reduce the Mn content in pig iron by 0.20%, to reduce the content of Mn in pig iron from 0.70% to 0.50%, actually to 0.426%.