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高炉喷油是强化冶炼、降低焦比的有效措施。针对炼铁厂7号高炉生产不稳定、技术经挤指标落后、年平均利用系数在1.55t/(m~3·d)的被动局面,采取了喷吹焦化厂煤焦油中间产品——脱晶蒽油的技术措施。试验结果表明,炉况得到改善,生产指标迅速提高,综合焦比降低0.88％,油焦置换比达到1.22。日产量增加10.41％,一级品率提高27.5％,公司增利1580.4万元/a,炼铁厂增利40.86万元/a。高炉喷油不仅能改善炉况,而且能稳定操作,在鞍钢原燃料条件下,大型高炉喷油操作势在必行。但是,要想赶上国外同类型高炉先进水平,尚需在改善原燃料质量,采用先进高炉设备等方面下一番功夫。
Blast furnace fuel injection is to strengthen the smelting, coke reduce the effective measures. In view of the production instability of No.7 blast furnace in ironworks, the passive index of backward technology and the average annual utilization coefficient of 1.55t / (m ~ 3 · d) Anthracene oil technical measures. The test results show that the furnace condition has been improved, the production index increased rapidly, the comprehensive coke ratio decreased by 0.88%, and the oil coke replacement ratio reached 1.22. Daily output increased by 10.41%, a product rate increased by 27.5%, the company increased profits 15,804,000 yuan / a, iron ore plant increased profits 408,600 yuan / a. Blast furnace fuel injection can not only improve the furnace conditions, but also stable operation, the conditions in the raw materials of Anshan Iron and Steel, large blast furnace fuel injection operation is imperative. However, in order to catch up with the advanced level of the same type of blast furnace abroad, it still needs to make some efforts in improving the quality of raw materials and using advanced blast furnace equipment.