宝钢2号高炉操作技术的进步

Technical progress of operation of №2 BF at baoshan Iron ＆ Co.

宝钢2号高炉(4063m^3)采用串罐无料钟炉顶和喷吹煤粉工艺,自1991年6月投产以来,采用小块焦混入矿层入炉法、无料钟布料方式优化、低硅冶炼、较高喷煤比操作等技术,1993年底生铁含硅降至0.35％,1994年11月份喷煤量达到125kg/铁,高炉操作稳定顺行。

The №2 BF was blown-in in June, 1991. It is equipped with bell-less top with two vertical hoppers of the same axis and pulverized coal injection facility. Furthermore, a few new techniques,such as mixed-charging of small coke,low-silicon smelting and operating of higher pulverized coal injection rate etc. have been adopted and stable smooth operation has been achieved after the blowing-in. The silicon content of hot metal was reduced to 0.35% in December,1993. Pulverized coal injection rate reached 125kg/tHM in November ,1994.