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七十年代以来,由于高炉不断大型化,以及采用了燃料喷吹、提高风温、提高炉顶压力等强化冶炼措施以后,炉身寿命显著缩短。为寻找其对策,国内外炼铁工作者对炉身砖衬破损原因及防止破损的有效措施进行了大量的分析研究。日本和苏联等国乘高炉解剖及大中修的机会,对炉身使用过的砖衬、附着物进行了分析研究。关于炉身下部砖衬应该选用何种材质,目前观点尚不统一,但多数人认为:对于热负荷较大的炉腹和炉身砖衬,应该选用耐碱性、耐磨损的 SiC 或 SiC-
Since the 1970s, due to the ever-increasing size of the blast furnace and the intensive smelting measures such as fuel injection, air temperature increase and roof pressure increase, the life of the shaft body has been significantly shortened. In order to find out its countermeasures, domestic and foreign iron and steel workers carried out a great deal of analysis and research on the causes of brick lining damage and effective measures to prevent damage. Japan and the Soviet Union and other countries by blast furnace anatomy and major training opportunities for the use of the brick lining, attachments were analyzed. On the lower part of the body of the brick liner should choose what kind of material, the current view is not uniform, but most people think: For heat load larger bosh and shaft brick lining, you should use alkali-resistant, wear-resistant SiC or SiC -