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一、概况 攀钢三高炉目前正处在一代高炉寿命的末期,冷却设备大量破损,已坏的冷却壁有26块,支梁式水箱46块。从81年下半年起水箱大量烧穿,炉皮多处发红,严重威胁着高炉的正常生产。根据二高炉中修前上部调剂不断采取加重边沿、疏松中心取得高炉晚期良好冶炼指标的经验,三高炉能否采用?考虑到三高炉烧结矿<5mm粉末比其它高炉高2～4％,过去又一直适用于炉顶煤气曲线边沿CO_2比中心低1～2％左右的操作方针,加重边沿会不会两条煤气流都堵塞?因此三高炉加重边沿是否可行成了研究的重要课题。
First, an overview Pangang three blast furnace is currently in the end of the life of a generation of blast furnace, a large number of damaged cooling equipment, has been a bad cooling wall 26, 46 beam tank. From the second half of the year 81, a large number of water tanks burn through and the reddish brown skin burns heavily, which seriously threatens the normal production of the blast furnace. According to the two blast furnace in the upper part of the adjustment continue to take to aggravate the edge, the loose center to obtain good late blast furnace smelting indicators experience, the three blast furnace can take? Considering the three blast furnace sinter <5mm powder higher than other blast furnace 2 ~ 4% Has been applied to the top of the curve of the top gas curve CO_2 lower than the center of about 1 to 2% of the operating guidelines, aggravating the edge will be two coal gas flow are blocked? Therefore, whether the three blast furnace aggravating the edge has become an important issue for research.