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山东鲁丽钢铁有限公司1号高炉(1080m3)于2010年12月喷涂造衬之后开炉生产已近一年。2011年11月中旬,1号高炉炉况出现波动,从13日开始,高炉产量下降、燃料比升高、探尺频繁钻尺、高炉炉况稳定性变差。经过循环、集中加萤石、锰矿和净焦洗炉处理约7天,炉况基本恢复,产量、燃料比等各项经济技术指标基本恢复到正常水平。截至11月21日,高炉日平均风量达到2715m3/min,热风压力350kPa,煤气利用率达到47.8%,焦炭负荷加重至4.80,压量关系稳定,风口工作均匀明亮,探尺走势均匀良好,燃料比530kg/t,日产量3311t,高炉恢复至顺行状态。
The No. 1 blast furnace (1080m3) of Shandong Luli Iron and Steel Co., Ltd. was put into production after spraying and lining in December 2010 for nearly a year. In mid-November 2011, the blast furnace No. 1 fluctuated. From the 13th, blast furnace output decreased, the fuel ratio increased, and the length of the feeler was frequently drilled. The stability of the blast furnace condition deteriorated. After recycling, centralized treatment with fluorite, manganese ore and net coke oven for about 7 days, the furnace basically recovered and the economic and technical indicators such as output and fuel ratio basically returned to normal levels. As of November 21, the daily average blast volume reached 2715m3 / min, the hot blast pressure was 350kPa, the gas utilization rate reached 47.8%, the coke load increased to 4.80, the pressure relation was stable, the tuyere work was even and bright, 530kg / t, daily output 3311t, the blast furnace to restore the state of anterograde.