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包头钢铁稀土公司炼铁厂从外地购进的铁沟泥料价格昂贵,三座高炉只能在主铁沟非连续性的重点铺垫,仅此一项,1990年每吨生铁成本增加0.35～0.38元,为降低生铁成本,对Al_2O_3—SiC质铁沟捣打泥料进行了试验研究,并试生产出铁沟泥料。经1号高炉出铁107次、通铁量22135t的使用结果表明:自产铁沟泥料强度好,不裂缝,抗冲刷。砂口以下1～5m沟段(俗称弯沟)。
The iron trenches bought by Baotou Iron & Steel Rare-Earth Company iron mills from the field are expensive, and the three blast furnaces can only lay emphasis on the discontinuity of the main trough. This alone increased the cost of pig iron per ton in 1990 by 0.35-0.38 Yuan, in order to reduce the cost of pig iron, Al 2 O 3-SiC iron trenches ramming mud was carried out experimental study, and trial production of trenches mud. The No. 1 blast furnace tapping 107 times, the use of 22135t iron results show that: the production of trended mud strength, no cracks, anti-erosion. Below the sand mouth 1 ~ 5m Ditch (commonly known as curved ditch).