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前言随着钢铁工业的发展,焦煤供应日益紧张。据估计,世界煤蕴藏量中焦煤仅占17%左右。因此各国在降低焦耗,扩大能源方面进行了大量的工作。在我国铸铁生产中,焦炭化铁炉的熔化量约占铸铁总产量的90%以上。多年来,由于炉型结构、炉料管理和操作工艺等方面的改革,焦比平均水平已由解放初期的1～2:1提高到8～10:1左右,高的达16～18:1。如从降低烧损,保证铁水质量等方面衡量,国内先进的炉子,焦比可维持在12～13:1.
Preface With the development of steel industry, coking coal supply is increasingly tense. It is estimated that only about 17% of the coking coal in the world reserves of coal. Therefore, various countries have done a great deal of work in reducing coke consumption and expanding energy resources. Cast iron production in China, the melting of coke iron furnace accounts for about 90% of the total output of cast iron. Over the years, the average level of coke ratio has been raised from 1: 2: 1 to 8: 10: 1 and 16: 18: 1 high due to the reform of furnace structure, charge management and operation technology. As from the lower burn, to ensure the quality of hot metal, etc., the domestic advanced stove, coke ratio can be maintained at 12 ~ 13: 1.