Mica is a general term for mica minerals. It is an aluminosilicate of metals such as potassium, aluminum, magnesium, iron, and lithium. They are all layered structures and monoclinic. The crystals are in the form of pseudo-hexagonal flakes or plates, occasionally columnar, with glassy luster, and the flakes are elastic. Mica ore mainly includes biotite, phlogopite, muscovite, lepidolite, sericite, green mica, iron-lepidolite, etc. Aventurine is a mixed mineral of mica and quartz. Most industrial applications are muscovite and phlogopite. Lepidolite is an important mineral raw material for refining lithium.

Application of mica powder

Different types of mica products have different application values. Biotite industry mainly uses its insulation and heat resistance, as well as acid resistance, alkali resistance, compression resistance and stripping properties, as an insulating material for electrical equipment and electrical equipment; secondly, it is used to manufacture steam boilers and smelting furnaces. Furnace windows and mechanical parts. Phlogopite is widely used in building materials industry, fire protection industry, fire extinguishing agent, welding rod, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigment and other chemical industries.

The processing process of mica powder

Process 1
Large pieces of mica are transported by special vehicles to the raw material warehouse, and then the materials are sent to the jaw crusher by forklifts/manually for crushing, and crushed to be smaller than the feed size of the mill.

Process 2
The mica crushed by the crusher is lifted by the elevator to the storage hopper, and the storage hopper is discharged and fed to the main machine evenly by the feeder.

Process 3
Qualified products in the grinding process are screened by the screening system and then enter the collector through the pipeline. After being collected, they are discharged through the powder pipe to become the finished product, and the unqualified products fall into the main machine to be ground again.

Process 4
The purified airflow flows into the blower through the residual air pipe above the dust collector. The air path is cyclic. Except for the positive pressure from the blower to the grinding chamber, the airflow in the remaining pipeline flows under negative pressure. The indoor sanitary conditions are good.

Mica Grinding Mill Equipment

The motor drives the reducer to drive the grinding disc to rotate, and the material to be ground is sent to the center of the rotating grinding disc by the lock air feeding equipment. Under the action of centrifugal force, the material moves to the periphery of the grinding disc and enters the grinding roller table. Under the action of the roller pressure, the material is crushed by squeezing, grinding and shearing. At the same time, hot air is sprayed upwards evenly at high speed from the wind ring surrounding the grinding disc, and the ground material is blown up by the high-speed air flow at the wind ring. The material is dried, and the fine powder is brought into the separator by hot air for classification. The qualified fine powder is discharged out of the mill along with the airflow and collected by the dust collection equipment to become the product. The unqualified coarse powder falls again under the action of the separator blade To the grinding disc, regrind together with the newly fed material, and repeat this cycle to complete the whole grinding process.