Production And Application Of Magnesium Zirconium Bricks

The main raw materials for the production of magnesium zirconium bricks are high-purity fused magnesia or sintered magnesia and synthetic magnesium zirconium sand. The raw materials are scientifically proportioned. After high-pressure molding and high-temperature firing, the bricks are cylindrical bricks, compact bricks and periclase bricks. ZrO2 is introduced into them to enhance the toughness, improve the spalling resistance and alkali metal corrosion resistance. Magnesium chromium brick reacts with CaO in slag at high temperature to form CaZrO3, which is a high melting point material. A protective layer is formed on the brick surface to prevent further corrosion of slag to brick. Magnesium zirconium brick replaces magnesium chromium brick to realize chromium free and eliminate pollution. It belongs to environment-friendly and pollution-free refractory brick. In addition, its anti peeling performance is better than magnesium chromium brick, and its application is more and more widely.