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包钢高炉的生产总是处于“带瘤操作”状态,炸了又结,结了再炸。炉瘤一直使高炉不能正常生产,近十年来尤以二高炉最为典型。 二高炉于一九七三年二月停炉炸瘤后,七月十九日复风生产,于一九七四年一月又炸瘤一次,仅仅过了五个月,又开始炉况不顺,压差升高,料尺偏斜,料尺曲线出现“小台阶”等现象,各种迹象都表明炉内又结瘤了。到七四年下半年炉瘤的危害加剧,至七五年初已发展到每天悬料3～4次之多,炉尘铁比高达180公斤/吨铁,严重地影响了高炉的生产,于一九七五年二月八日停炉炸瘤。
Baotou blast furnace production is always in the “tumor operation” state, fried and knot, knot and then deep-fried. Blast furnace has been unable to make the normal production of blast furnace, especially in the past decade the most typical of the second blast furnace. After the blast furnace was stopped in February 1973, the second blast furnace reawakened the production on July 19 and again exploded in January 1974. It took only five months for the blast furnace to start blasting again. Shun, the pressure drop, the feed scale deflection, material foot curve “small steps” and other phenomena, all kinds of signs have shown that the furnace nodules. By the second half of 1944, the danger of sounders was aggravated. By the beginning of the beginning of July or early fifth century, the material had been suspended 3 to 4 times a day, with a ratio of furnace dust to iron of up to 180 kg / t. This seriously affected the production of blast furnaces. February 8, 757 to stop blast furnace tumor.