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我厂1号28M~3高炉在包头钢铁设计院的帮助下由管式换热式热风炉改建成卧式蓄热式热风炉,进行了两个时期试验,并为配合热风炉试验,高炉进行了一次大修。两年来的生产实践表明效果较好。热风温度最高达到1072℃,平均风温比铸铁管热风炉风温提高400℃,高炉产量提高20%,焦比降低11%。一、改进过程和生产概况第一次试验自1971年11月至1972年4月,使用2座钢壳卧式热风炉、1座耐热混凝土外壳卧式热风炉,蓄热室格子砖用平板砖,高炉仍为铸铁热风围管,使用热风温度600℃～
I plant on the 1st 28M ~ 3 blast furnace with the help of Baotou Iron and Steel Design Institute by the tube heat exchanger converted into a horizontal regenerative stove, conducted two tests, and with the hot stove test, the blast furnace A major overhaul. Two years of production practice shows that the effect is better. Hot air temperature up to 1072 ℃, the average air temperature than cast iron pipe stove temperature increased 400 ℃, blast furnace production increased by 20%, 11% reduction in coke ratio. First, to improve the process and production profile The first test from November 1971 to April 1972, the use of two steel horizontal hot air stove, a heat-resistant concrete shell horizontal hot air stove, regenerator lattice brick with a flat Brick, blast furnace is still cast iron hot air around the tube, the use of hot air temperature 600 ℃ ~