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我区珙县铁厂,为进一步改善技术经济指标,从81年6月开始,采用就地优质廉价白煤,逐渐代替价昂的土焦入炉。当白煤掺入50～60％时,又出现了炉况不顺,多次结瘤。为改变这一状况,曾采取过一些措施,但收效甚微。今年4月下旬以来,寻求并采用合理CO_2曲线操作,实现了90余天没结瘤的顺行局面,技术经济指标也明显改善。一、从技术上找准原因该厂随着白煤入炉比例增大,原、燃料质量也有所改善,已不是炉况不顺的主要原因
Juxian iron factory in our area, in order to further improve the technical and economic indicators, from June 81 onwards, the use of cheap high-quality local white coal, and gradually replace the price-expensive ground coke into the furnace. When white coal incorporates 50 ~ 60%, the furnace condition appears again, many nodules. Some measures have been taken to change this situation, but with little success. Since the end of April this year, we have sought and adopted a reasonable CO_2 curve operation to achieve an antegrade situation that no nodules have lasted for more than 90 days and the technical and economic indicators have also remarkably improved. First, from the technical reasons for the site With the increase of the proportion of white coal into the furnace, the original fuel quality has improved, is not the main reason for the furnace is not smooth