HGM series three-ring (four-ring) medium-speed mill is mainly suitable for processing non-flammable and explosive mineral materials with a Mohs hardness of less than 7 and a humidity of less than 5%, such as: limestone, calcite, gypsum, kaolin, petroleum coke, etc. It is suitablefor ultrafine powder processing of a variety of materials. The fineness of the discharged product can be adjusted within the range of 325 mesh to 2500 mesh.
The complete set of high-efficiency milling production line consists of hammer crusher, three-ring medium-speed high-pressure micro-powder milling machine, bucket elevator, storage bin, electromagnetic vibration feeder, cyclone dust collector, pulse dust collector, high-pressure fan, and duct.
Working principle:
The main motor of the three-ring medium-speed milling machine drives the main shaft and the turnplates of each layer to rotate through the reducer, and the turnplate drives dozens of ring rollers to roll and rotate in the grinding ring raceway through the pins. Large pieces of material are broken into small particles by the crusher and sent to the storage bin by the elevator. The electromagnetic vibration feeder will evenly send the material to the middle of the upper turnplate. The material is scattered to the periphery of the circle under the action of centrifugal force and falls the rollaway nest of the grinding ring, and pulverized by ring rollers by punching, rolling and grinding. After the material is crushed in layers, it falls into the second and third layers. The suction effect of the high-pressure centrifugal fan draws external air into the machine and passes it through. The third layer of pulverized coarse powder is brought into the classifier. The turbulent flow generated by the rotating worm wheel in the classifier makes the coarse particles fall back and grind. The fine powder enters the cyclone powder collector with the airflow and is discharged by the discharge valve at the lower part of the separator. After passing through the pulse dust collector, the airflow is discharged through the fan and muffler.