The main cause of lining erosion in the melting furnace

Light refractory brick manufacturers first need to talk about the physical factors. In the process of use, the refractory bricks caused by the drastic changes in temperature are cracked. The high temperature melts due to excessive temperature, and the refractory bricks are re-fired or contracted, causing the furnace body. Destruction also results in a shortened service life of the refractory brick. The oven is not properly heated, the temperature rises too fast, and the refractory bricks expand too hot. Destroy the furnace body and shorten the life of the refractory brick.

Chemical factors: chemical attack of slag (including chemical attack of molten dust). It is generally the main factor in the lining erosion of the refractory of the melting furnace, and the furnace gas is chemically eroded. It mainly refers to the oxidative erosion of carbonaceous refractory materials in oxidizing furnace gas at high temperature, and the refractory materials are chemically eroded each other. If the acid is mixed with an alkaline refractory material, a fusible compound is formed at the contact at a high temperature, so that both are simultaneously eroded. Chemically invading copper and zinc, his anode (zinc) is continuously oxidized and corroded, and the principle of electrochemical erosion of carbon refractory bricks is the same.