Method for extending service life of refining electric furnace lining 1

Refining electric furnace linings are currently knotted with magnesia ramming materials, and are commonly used to produce low and medium carbon ferromanganese or low and medium carbon ferrochrome. The service life (furnace age) of medium and low carbon ferromanganese linings is generally about 400 furnaces. In case of peak avoidance production, the service life is shorter. Furnace lining life plays a very important role in production. Too short service life will lead to a significant increase in product cost, at the same time it will reduce the production rate of electric furnaces and increase the labor intensity of workers; even worse, it will also bring about the safety of workers Significant hidden danger. Therefore, prolonging the service life of the electric furnace lining can not only reduce production costs, but also increase output to achieve the purpose of improving labor productivity, and at the same time can reduce some of the safety hazards of workers and create greater economic benefits for enterprises. This article discusses how to extend the service life of refining electric furnace lining.
First of all, we need to understand the use of low and medium carbon ferromanganese lining.

Secondly, during the knotting process, the bottom of the furnace is generally cleaned, the ramming material is added into the furnace, and the knots are knotted layer by layer. When the furnace lining is knotted, it is put into production.
The raw materials used in the production of low-carbon ferromanganese are generally manganese ore, manganese-silicon processing powder or sand washing, lime, using the method of starting the bottom of the manganese-silicon processing powder to start the arc. When the arc is stable, the mixture is mixed and the smelting starts. Released.

Organizing the production process basically meets the production requirements of the cold-packing process. The normal service life of the lining is about 400 furnaces. The actual production conditions of most enterprises are similar.