(一) 鼓风炉是最原始的冶炼设备,在处理富块矿时期取得了很大的发展。自二十年代选矿技术兴起以来,冶炼原料逐渐采用细颗粒精矿.从此钢铁和有色冶金工业走向两个不同的发展方向。炼铁工业不断研究造块技术,高炉炼铁得到进步。目前,苏联高炉炉容已达到5000～5500米~3,日产生铁13000吨。鼓风风温达 (A) The blast furnace is the most primitive smelting equipment and has made great progress during the treatment of rich lump ore. Since the rise of beneficiation technology in the 1920s, fine-grained concentrates have been gradually used in smelting raw materials, and the steel and non-ferrous metallurgical industry have moved to two different directions since then. The ironmaking industry continues to study the technology of making blocks and the blast furnace is progressing. At present, the Soviet blast furnace capacity has reached 5000 ~ 5500 m ~ 3, producing 13,000 tons of iron a day. Breeze wind up