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50年代和60年代初期,我国单独采用高铝砖或粘土砖砌筑炉缸、炉底的高炉曾经发生过多次炉缸或炉底烧穿事故,不仅严重影响高炉寿命,而且危及人身设备安全,成为高炉生产的一个关键问题。实践证明,单用这类耐火材料根本不适应高炉炉缸的工作条件,特别是大高炉。1958年我国第一座炭块炉缸、炭块—高铝砖综合炉底的高炉问世后,情况发生了根本的变化,炉缸、炉底烧穿事故基本上消除了,效果十分显著。实践证明,炭块是高炉炉缸的理想炉衬材
In the 1950s and early 1960s, high-alumina bricks or clay brick masonry furnaces were used separately in our country. There have been many incineration accidents on the hearth or bottom of blast furnace in the bottom of the furnace, which not only seriously affect the life of the blast furnace but also endanger the safety of personal equipment , Has become a key issue of blast furnace production. Practice has proved that the use of such refractory materials simply do not meet the blast furnace hearth conditions, especially the blast furnace. After the advent of the first carbon block hearth in China in 1958, the blast furnace with integrated bottom of carbon block and high alumina brick came out, and the situation has undergone fundamental changes. The accident of firing through the hearth and hearth has basically been eliminated and the effect is very remarkable. Practice has proved that carbon block is the ideal furnace lining furnace blast furnace material