Production process flow of silicon carbide micropowder 2009-2-9 Source: China Mining and Metallurgy Equipment Network A production process of silicon carbide micropowder, which is characterized by the following steps: (1) Take silicon carbide raw materials, put them into a pulverizer for crushing, sieve them into silicon carbide particles not larger than 5mm, shape them into silicon carbide particles not larger than 2mm with a molding machine, and then pickle them. (2) grinding the dried silicon carbide particles into silicon carbide powder with d50 = 9.5- 1 1.5 micron with the main current of the mill set at 65-75A, the fan flow set at 40-50m3/min and the rotation speed of the analyzer set at 400-600rpm; (3) classifying the silicon carbide powder with a vortex air classifier, wherein the fan flow of the vortex air classifier is 25-43m3/min, and the rotating speed of the classifying wheel is 2600-3300rpm, and classifying the finished product A with the particle size of 6.5-5.5μ m and the semi-finished product of the cyclone Kuchmaod ds94≤5.5μm; (4) The cyclone Kuchmod semi-finished product of the vortex air classifier is classified for the second time by the impeller air classifier. When classifying, the fan flow rate of the impeller air classifier is 25-65438+1100m3/min, the rotating speed of the classifier wheel is 1300- 1700 rpm, and the particle size obtained by classification is DS94 = 4.5. Screening is to divide particles and powder into particle segments with different sizes. A single TS vibrating screen can be equipped with four screens, which can continuously separate 2-5 particle fractions and control a narrow particle size range. The high-performance screening machine used to screen out impurities can quickly remove large particles or a low percentage of small particles in the process of large flow treatment. TS vibration screening machine can quickly remove insoluble solid substances in various slurries and continuously discharge slag.