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What are the characteristics and shortcomings of improving the service performance of submerged arc furnace lining?


In the first wide joint method, the width of the brick joint is first eroded and consumed by molten iron. The molten iron invades under the carbon brick and gradually floats the carbon brick, causing damage to the furnace lining.


The second so-called seamless method is not really seamless. The molten iron flows down the brick joint to the bottom of the carbon brick and gradually floats up, resulting in the failure and scrapping of the whole furnace lining.


The third overall tamping method, because the cold tamping paste does not go through the process of high-pressure compaction and vacuum roasting like carbon brick, and its performance is far inferior to that of prebaked carbon brick, its service life is very short, generally no more than one year, but this method has low cost and short construction period.


After years of production practice, the author compares the differences between the three methods and invents a new method. On the basis of the original seamless method of carbon brick, the carbon brick is reprocessed into annular groove and concave structure, and the characteristics of self baking carbon material are skillfully used to connect the carbon brick, including the same layer and interlayer, so as to block the gap between hot metal penetration and horizontal penetration, and connect the carbon brick of the whole furnace lining as a whole. The furnace lining not only has the excellent performance of carbon brick, but also has the integrity of the third overall tamping method, which solves the current problems. There are long-standing problems, such as short service life, frequent accidents, too early waste of hot furnace lining and so on.


Well, the above is about the characteristics and shortcomings of the improvement of the service performance of submerged arc furnace lining. For more details, please pay attention to our official website: http://flpx.com.cn/


Key words: submerged arc furnace DC submerged arc furnace DC electric arc furnace