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中型高炉上部调剂一般沿用综合装料制度(mPPKK+nKPPK),以正装为主,适当采用一定半倒装、倒花装调节煤气流分布,一般m>n,能获得两道气流均较发展的双峰煤气曲线,既能达到一定的煤气利用率以降低焦比,又可照顾顺行,但这种装料制度很难把焦比降低到500kg/t以下。随着管理水平的提高,铁前工作的改善,不少高炉已全部采用正同装而用PKPK来调节煤气流分布,煤气曲线呈平峰型,CO_2可达16～18%,焦比可达500kg/t以下。近几年来,不少高炉根据自己的具体条
Medium blast furnace upper part of the general transfer of the general use of integrated loading system (mPPKK + nKPPK), mainly to the main suit, the appropriate use of a certain semi-flip, refill fitted to adjust the gas flow distribution, the general m> n, Bimodal gas curve, both to achieve a certain gas utilization to reduce the coke ratio, but also take care of the line, but this charging system is difficult to reduce the coke ratio below 500kg / t. With the improvement of management level and the improvement of iron work, many blast furnaces have all adopted the same installation and PKPK to regulate the gas flow distribution. The gas curve shows a flat peak type with a CO 2 up to 16-18% and a coke ratio up to 500kg / t below. In recent years, many blast furnace according to their own specific article