我矿钢铁厂六座6.5立方公尺高炉, 连备用共建九个热风炉,其中除一号高炉热风炉的热风管是按原设计减半安装24根外,其余8个热风管(三个备用)都是因铸管供应不上而采用铁水管和钢管代替,并且热风炉管子安装由立式改为卧式。为了早日出铁,9个热风炉除一号热风炉铸管锈结五天投入生 I mine six 6.5 cubic meters blast furnace steel plant, and even spare to build nine hot stove, in addition to the first hot blast stove hot air duct is installed according to the original design halved half 24, the remaining eight hot air duct Three spare) are due to the supply of cast pipe instead of using hot metal pipe and pipe instead, and hot stove pipe installation from vertical to horizontal. In order to get rid of iron as soon as possible, nine hot blast stoves except one hot blast cast pipe knot five days into health