论文部分内容阅读
沙钢5800m~3高炉在富氧率达10.5%、产能得到较大提升时,出现了炉况明显不顺的状况,主要表现是边缘煤气流难以控制、炉缸边缘堆积等。为恢复炉况,采取了提高[Si]、降低炉渣碱度、适当加入锰矿等应对措施,消除了炉缸边缘堆积,煤气利用率提高到45%以上。提出了下一步需改进的建议:①寻找适合当前送风制度的布料矩阵;②炉墙温度和水温差监测手段有待完善;③加强炉温管理;④建立稳定的操作制度。
When the oxygen-rich rate reached 10.5% and the production capacity was greatly increased, the furnace status of 5800m ~ 3 blast furnace in Shagang Steel was obviously obstructed. The main performance was that it was difficult to control the edge gas flow and accumulated on the edge of the hearth. In order to restore the furnace condition, measures such as raising [Si], lowering the basicity of slag and adding manganese ore appropriately were adopted, eliminating the accumulation on the edge of the hearth and increasing the gas utilization rate to more than 45%. Proposed the next step to improve the proposal: ① looking for the current air supply system, the fabric matrix; ② furnace wall temperature and water temperature monitoring means to be improved; ③ strengthen the furnace temperature management; ④ establish a stable operating system.