Evolution and features of the development of ultra-fine mills
Ultrafine mills are upgraded from traditional high pressure mills. Produces products that are thinner than ultrafine mill. The ultra-fine pulverizer is made up of coarse crushing, fine crushing, pneumatic conveying, etc. The purpose of the pulverizer is high-speed impact. The use of wind energy once into powder eliminates the traditional screening process. In the main body of the ultra-fine grinding machine, a high-pressure spring with a pressure of 1000-1500 kg is fastened on the roller hanger. After the ultra-fine pulverizer starts working, the roller rotates around the main shaft, and under the action of the high-pressure spring and centrifugal force, it rolls close to the grinding ring and the pressure is 1.2 times higher than that of the Raymond pulverizer under the same power conditions, so the output is large. To improve. After the material to be ground enters the grinding chamber, it is shoveled by a blade and sent between the grinding roller and the grinding ring for rolling. After the roller compaction, the powder is carried into the analyzer along with the circulating wind of the drum machine, and the fine powder enters the cyclone with the airflow. The powder collector is the finished product, and the large particle material falls back to regrind. The circulating air is returned to the blower and the above process is repeated. The remaining air enters the bag filter for purification. When the wear of the grinding roller and the grinding ring reaches a certain level, adjust the length of the high pressure spring to maintain a constant rolling pressure between the roller and the ring. So as to ensure stable production.
Superfine mill features:
1. The application scope of ultrafine mill is greater than that of jet mill.
2. Compared with other similar mills, the ultra-fine pulverizer increases the rolling pressure of the material by 800-1200Kg under the action of the high-pressure spring.
3, energy saving. With the same yield and fineness, the energy consumption of the system is only one third of that of the jet mill.
4, small investment, high returns. With the same yield and fineness, the price of high-pressure microgrinding is only one-eighth that of a jet mill.
5, the feed size is large, the discharge of disposable ultra-fine powder with an average particle size of up to 6.5um.
6, overlapping multi-polar sealing grinding device, sealing performance.
7. The dust removal effect of ultra-fine mill fully meets the national dust emission standards.