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我厂3t/h、5t/h两座倒大双冷风冲天炉,自投入使用以来,一直存在着单边炉衬侵蚀偏多问题(如图所示)。由于熔炼时间较长,经常因炉衬烧偏使炉壳烧红。后经分析认为,风机的风管进入风箱为切向送风,在主风管进风口区域,由于受空气流束的干扰,风箱内空气流动的速度不能相等,而同排风眼的截面积是相等的,所以往往造成同一排风眼进风量不一样,进风量偏多的一边,焦炭燃烧较充分,炉温偏高,炉衬侵蚀较严重。
I plant 3t / h, 5t / h two large double-cupola cupola, since put into use, there has been a single side lining erosion of many problems (as shown). Due to the longer melting time, furnace linings are often burnt red due to furnace lining burning. After the analysis that the fan duct into the wind for the tangential air supply in the main duct inlet area, due to interference by the air stream, the air flow velocity inside the bellows can not be equal, and with the cross-sectional area of the exhaust eye Is the same, it is often caused by the same exhaust eye into the air volume is not the same, into the side of the air volume, coke combustion more fully, the furnace temperature is too high, the lining erosion more serious.