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采用耐火纤维改造现有电炉具有节能,简便,省工时,化钱少等优点,是电炉节能措施中较为有效的一种办法。对于井式电炉的改造,一般采用包覆法和耐火纤维砖两种。包覆法是在原炉壁,沿电炉搁丝砖,包覆上厚度为10毫米的耐火纤维毡,然后把电阻丝塞到包有耐火纤维的搁丝砖的空间里。这种方法的优点是施工简便,化钱省,有一定的节电效果。但由于第一,电阻丝被耐火纤维包围,遮蔽系数增大,热量不易散失,因此炉丝温度急剧升高,容易烧断。第二,
The use of refractory fiber to transform the existing electric furnace has the advantages of energy-saving, simple, labor-saving, less money, etc., is the electric furnace energy-saving measures in a more effective way. For the transformation of pit furnace, the general method of coating and refractory fiber brick two. The coating method is in the original furnace wall, along the furnace laying brick, coated with a thickness of 10 mm of fire-resistant fiber mat, and then the resistance of the filament wrapped in fire-resistant fiber-covered space brick. This method has the advantage of simple construction, saving money, there is a certain energy-saving effect. However, because of the first, the resistance wire is surrounded by refractory fiber, the shielding factor increases, the heat is not easy to lose, so the temperature of the wire rises sharply and is easily blown off. second,