In the glass industry, magnesia brick has an irreplaceable important use, providing a solid guarantee for the high-quality production of glass.
Magnesia brick
1. The main material of glass melting kiln lining
The glass melting process needs to be carried out in a high temperature environment, and the excellent high temperature resistance of magnesia brick makes it the main component of glass melting kiln lining. It can withstand temperatures of up to 1600 ° C or even higher, continuously providing a stable high temperature space for glass melting. Whether it is a furnace in a small glass workshop or a melting kiln on a large modern glass production line, the lining of magnesia brick can effectively prevent excessive heat loss, maintain the high temperature environment inside the furnace, and ensure that the glass raw materials are fully melted and evenly mixed, which plays a decisive role in the consistency and stability of the quality of glass products.
2. Resisting the erosion and erosion of glass liquid
The molten glass has a certain corrosiveness and strong fluidity in the molten state, which will cause continuous erosion and scouring of the furnace lining. Magnesia brick has good resistance to glass erosion, and its chemical composition and crystal structure make it minimize the dissolution and penetration of glass liquid to the brick during long-term contact with glass liquid. In the key parts of the pool wall and flow hole of the glass melting kiln, the magnesia brick can maintain the structural integrity, effectively prevent the leakage and erosion of the glass liquid, so as to extend the service life of the furnace, reduce the high cost caused by frequent maintenance or replacement of the lining of the glass production enterprise, and ensure the continuity and economy of the glass production.
3. Stabilizing the thermal system of glass melting kiln
The thermal conductivity of magnesia brick is moderate, which can better balance the storage and transfer of heat during the operation of glass melting kiln. It can store enough heat in the high temperature stage, reduce the unnecessary loss of heat to the outside world, and improve energy utilization efficiency; In addition, it can effectively buffer the stress change caused by thermal expansion and cold contraction when the temperature of the furnace fluctuates, and maintain the relative stability of the temperature field inside the furnace. This stable thermal system is essential for the clarification and homogenization of glass liquid and the subsequent process of glass molding, which helps to reduce the defects such as bubbles and streaks in glass products, improve the optical properties and physical qualities of glass, and meet the strict requirements for high-quality glass products in different industries such as construction, automotive, electronics, etc.
