What role does the selection room play in a gas flow crusher?

　　Airflow grinding can also reduce solid oxidants, explosives, and catalysts, and the combustion rate made of propellants can increase by 1 to 10 times higher than that of ordinary propellants, and improve the hit accuracy and power of the rocket engine. It is extremely important to realize the modernization of defense.

　　The interior of the host of the airflow pulverizer is usually provided with a selection chamber, also called a gas flow classification system, which is used to control the finished particle size after the material is pulverized. The selection chamber is one of the important components of the airflow pulverizer, and will be described in detail below.

　　The airflow pulverizer is by using a high-speed airflow to drive the material, impact, friction, shear, and pulverized materials to the sorting chamber to achieve a particle size requirements. Through the forced impeller classifier, the particles do not reach the particle size return to the pulverizing chamber to continue to be pulverized, the entire production process is fully closed continuous operation, the air zui is purified after dust filtering, when the material is fed into the cavity, so that the entry into the cavity The material of the cavity is tightly friction and strongly impinges on the inside of the blade of the turbine in the rotating gas stream, and grinds again in the gap between the blades and the mill. At this crushing, grinding material, the turbine sucks a large amount of air, and the fineness of the material is pulverized depend on the properties of the material and the size of the screen, and the amount of material and air.

　　The high-speed jet stream is a circulating movement in the pulverized cavity, and the particles and the particles are generated by mutual impact, collision, rubbing, and rubbed, and fine particles are driven by the heart. The introduction of the airflow pulverizer center export pipe enters the separator for collection, and the coarse powder is subjected to cycle movement to the pulverized peripheral wall and continue to be pulverized. When the crushing machine is crushed, the pulverization ratio is often referred to as a broken ratio. When the crush is very large, the crushing operation is often done in a crushing system consisting of several crushing mechanicals. Materials have passed through various comminuted machines in this system, and their particle size is gradually reduced, and the ZUI reaches the required particle size.

　　The classification system can not only be placed inside the airflow mill, but also in series with various fine powder mills, such as mechanical grinding, ball milling, roll mill, loop, etc., can also be used as a separate device. In recent years, the airflow classification has been widely used in the metallurgical powder industry, and its effect is outstanding.

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