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炉缸冻结是高炉生产的重大事故,在现代炼铁生产中,此类事故已属罕见;但由于一些意外的原因,如向炉内大量漏水,大的配料失误,中修开炉不慎,高炉行程严重失常等,仍有可能酿成冻结事故。本钢高炉曾因上述原因,数次发生炉缸冻结事故。本文就一九七八年一月,五号高炉炉缸冻结事故的处理加以总结讨论。一、炉缸冻结的经过由于炉料质量下降,五号高炉料柱透气性恶化,出现1.8～1.9公斤/厘米~2的高压差,瞬间产生了巨型管道行程,虽经大量减风,仍旧频繁崩料。大量生料连续降入高温
In the modern ironmaking production, such accidents have been rare; but for some unexpected reasons, such as a large number of water leaks to the furnace, large ingredients mistakes, inadvertently open the furnace accidentally, Blast furnace serious disorders, is still likely to cause a freeze accident. Bengang blast furnace for the above reasons, several accidents occurred in the hearth freeze. In January 1978, the paper summarized the treatment of the 5th blast furnace hearth freezing accident. First, the boiler hearth freeze After the quality of the charge decreased, the fifth blast furnace column permeability deteriorated, there 1.8 ~ 1.9 kg / cm ~ 2 high pressure differential, a huge pipeline trip instantly, despite a large number of reduced wind, still frequent collapse material. A large number of raw materials into a continuous high temperature