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1 前言 4号高炉(306m~3)自1996年使用大风机(D1000)后,高炉的各项指标得到明显改善,但由于料批重过小,生产过程中仍有煤气流不稳等现象。为了使高炉的各项技术经济指标继续得到优化,4号高炉不断探索扩大料批的途径,通过采取一系列措施,大料批生产取得了较好的效果。大料批生产过程可分为三个阶段:第一阶段是1996年9月至
1 INTRODUCTION After blast furnace (D1000) was used in No.4 blast furnace (306m ~ 3), the indexes of blast furnace have been obviously improved. However, due to too small batch weight, there is still phenomenon of unstable coal gas flow in the production process. In order to continue to optimize the various technical and economic indicators of the blast furnace, blast furnace No.4 continues to explore ways to expand the batch of materials, and by adopting a series of measures, the batch production of large batch materials has achieved good results. Large batch production process can be divided into three phases: the first phase is from September 1996 to