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鞍钢在七十年代以前建设的部分高炉,防止炉底泄漏煤气的构造,基本上是按照《高炉结构设计技术规定》设计施工的,如图4所示。建成投产后,几乎都泄漏煤气,炉基承重底板有裂缝的地方,其情况尤为严重。煤气漏泄的主要通道,是沿着炉壳与冷却壁之间的间隙流到炉基冷却管上部,再通过炉壳与炉基耐热基墩间的空隙层(即炭素填料层),流至炉基承重底板处向炉外漏泄扩散。针
Some of the blast furnaces built by Angang before the 1970s to prevent the leakage of gas from the bottom of the furnace were basically designed and constructed in accordance with the Technical Regulations for Structural Design of Blast Furnaces, as shown in Figure 4. After completion and production, almost all of the gas was leaked, and the base of the furnace had cracks in the bottom plate, which was particularly serious. The main channel of gas leakage is the gap between the furnace shell and the cooling wall and flows to the upper part of the furnace-based cooling pipe, and then flows through the gap layer (ie, carbon filler layer) between the furnace shell and the heat-resistant base of the furnace base. The leakage of the furnace base bearing floor to the outside of the furnace spreads. needle