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1. 我国高炉技术装备现状我国高炉大多是在五十年代建设或改造的。近年虽有改进,也有个别较先进的高炉和技术,但就总体而言,仍保持着五十年代的装备水平,和国外先进高炉相比,差距较大。高炉容积偏小。全国平均为217m~3(重点企业838m~3),其中≤750m~3的占高炉总容积的47.16％,这导致能耗高、劳动生产率低、管理分散,装备水平的现代化也受到限制。高炉寿命短。大中型高炉的炉底和炉缸
1. China’s blast furnace technology and equipment status Most of our blast furnace in the fifties construction or transformation. Although improvements have been made in recent years and there are also some more advanced blast furnaces and technologies, the overall level of equipment in the 1950s remains relatively high compared with foreign advanced blast furnaces. Blast furnace capacity is small. The national average is 217m ~ 3 (key enterprises 838m ~ 3), of which, ≤750m ~ 3 accounts for 47.16% of the total volume of the blast furnace, resulting in high energy consumption, low labor productivity, decentralized management and modernized equipment level. Blast life is short. Large and medium-sized blast furnace bottom and hearth