Proceso de producción de ladrillo refractario de circón

Zircon refractory brick( zircon brick) is a high-performance refractory material containing a high content of zircon (ZrSiO₄). It is widely used in high-temperature fields such as glass kilns, metalurgia, non-ferrous metals, and chemicals. It has the characteristics of high corrosion resistance, buena estabilidad al choque térmico, and high load softening temperature.

Introduction to the manufacturing process of zircon bricks

The semi-dry production process can be used to manufacture clay-bonded zircon products. 2% plastic clay is added to zircon sand and zircon fine powder, and the properties of the mud are adjusted with electrolytes. The mud is kneaded and molded under a pressure of 127MPa (molding moisture is 4%). The green body is dried and fired at 1400℃. When manufacturing pure zircon products, the zircon fine powder can be surface activated. Zircon sand and zircon fine powder with a particle size of less than 0.03mm are mixed in a ratio of 1:1, and water or sulfite pulp waste liquid is added to prepare the mud, which is kneaded, molded (molding moisture 4.5%), and fired at 1450℃.

Specific process of zircon brick production

Selection of raw materials: The main raw materials of zircon bricks are zircon and other refractory materials, such as zirconium oxide, alúmina, etc.. These raw materials need to be carefully screened and proportioned to ensure that the bricks have the required refractory properties.

Mixing ingredients: The screened raw materials are mixed evenly according to a certain ratio. A certain proportion of binders and anti-cracking additives are usually added to enhance the firmness and heat resistance of the bricks.

Molding and pressing: The mixed raw materials are placed in a mold and pressed into shape. The formed bricks need to have a certain shape and size to meet the subsequent sintering and use requirements.

Sintering treatment: The formed bricks need to be sintered to give them excellent refractory properties in high temperature environments. During the sintering process, the temperature and time need to be controlled to ensure that the structure and performance of the bricks are well improved.

Quality inspection and packaging: The zircon bricks after sintering need to be inspected for quality to check whether their appearance and performance meet the requirements. Qualified products will be packaged into finished products for use in high-temperature environments such as kilns.