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1.KR炼铁法耗能概况 目前,世界上一些工业发达的国家都在积极地从事以煤代焦、以纯氧代空气的熔融还原炼铁方法的研究。其中奥钢联和科夫工程公司在西德莱茵河的克尔厂试验研究的KR法已经基本成功。生铁质量存在的问题也已基本解决。例如在1984年11月的试验中,在每吨铁水耗煤1t的情况下,铁水温度1500～1600℃,生铁含硅一般在1～2％,平均含硫为0.03％。炉渣碱度CaO/SiO_2为1.2,渣中硫为1.3％,脱硫系数为43.3。
1.KR ironmaking method energy consumption profile At present, some of the world’s industrially developed countries are actively engaged in coke instead of coal, pure oxygen generation of air by the method of reducing iron smelting study. Among them, the KR method of the trial study of the VAI and Kraft engineering companies in the Kerr factory in the Rhine West Germany has been basically successful. Pig iron quality problems have been basically solved. For example, in the November 1984 test, when the amount of coal consumed per ton of molten iron was 1 ton, the temperature of the molten iron was 1500-1600 ° C, the content of silicon in the pig iron was generally 1-2% and the average sulfur content was 0.03%. The slag basicity CaO / SiO 2 is 1.2, the slag sulfur is 1.3% and the desulfurization coefficient is 43.3.