争取在一定时期内使我国炼铁工业赶上国际水平,这是最近召开的全国高炉生产技术会议确定的一项重大的任务。这次会议指出,我国炼铁工业几年来有了很大发展,全国生铁产量已经有了很大的提高。全国高炉炼一吨铁所占用的有效容积平均已从1952年的0.977立方公尺降到今年上半年0.879立方公尺。但是炼铁工业目前还存在着许多的缺点,例如各炼铁厂在相当程度上都有生产不稳定、炉况波动、事故频繁的情况。今年上半年有些高炉因炉内结瘤减少生铁产量2万5千吨;在同一时期,全国各高炉体风率如果减少1％, For a certain period of time to make our country ironmaking industry catch up with the international level, which is the recently held national blast furnace production technology conference to determine a major task. The meeting pointed out that China’s ironmaking industry has made great strides in recent years and the country’s pig iron production has been greatly improved. The effective volume occupied by the national one-tonne blast furnace iron has dropped from 0.977 cubic meters in 1952 to 0.879 cubic meters in the first half of this year. However, there are still many shortcomings in the ironmaking industry. For example, iron mills, to a large extent, have instable production, fluctuating furnace conditions and frequent accidents. In the first half of this year, some blast furnaces reduced the production of pig iron by 25,000 tons because of the knot formation in the furnace. In the same period, if the blast furnace breeze rate decreased by 1%