Refractory manufacturer's requirements for refractory material beneficiation

Refractory manufacturer's mineral processing requirements for refractory raw materials: generally, there are few natural minerals that meet the standard of high-quality raw materials. In many cases, it is necessary to concentrate the mined mineral products to improve their purity, so as to meet the needs of preparing high-quality refractories. In mineral processing, mineral aggregate is first crushed, and then the differences of physical and chemical properties of various minerals are used to separate or enrich them, so as to improve the purity of raw materials.

According to the different particle size, the ore dressing is suitable for the treatment of raw minerals with loose small particles. For example, the sand and clay can be separated from each other by washing or whirlwind separation.

According to different density, it is suitable for the treatment of loose materials with large density difference and small particle size difference. For example, in the process of elutriation or gas phase sedimentation, the material with high density falls near and the material with low density disperses far away, so as to achieve the purpose of mineral separation

According to the different shapes of mineral processing, it is suitable for processing minerals (mica, graphite, asbestos, etc.) with flake and needle like particles. The particles in these shapes are difficult to pass through the sieve.

Magnetic separation is to use the difference of magnetic conductivity of minerals. For example, Fe, Ni, CO and their compounds are easily attracted by magnets, while many refractory minerals are not attracted by magnets. Electromagnetic separation is often used to remove iron impurities from refractory materials.