Three-ring Medium-speed Micro-powder Grinder

Overview
HGM Series Three-ring Medium-speed Micro-powder grinder is a new type of mill for making super fine powder through more than 20 times of test and improvement.  It is an incorporated one of the two countries and a leader of the grinding industry nowadays.
HGM Series Three-ring Medium-speed Micro-powder grinder is designed to get fine and super fine powder. It is mainly used to process more than 200 kinds of non-inflammable, non-explosive and brittle materials with Moh’s hardness below 6 scale, such as calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, tablite, ceyssatite, barite, gypsum, alunite, black lead, fluorite, phosphate rock, potassium ore, floatstone etc. When HGM mills are used to process materials with Moh’s hardness between 4-6 scale, the service lifetime of easy-worn parts shall be shortened as it relies on the hardness of raw material.

Principle
The motor drives the main shaft and every turnplate through the reducer. The reducer drives dozens of rollers to rotate against race way of ring through pin. Small material crushed by hammer crusher is transported into hopper by elevator, and then vibrating feeder shall feed material to the central part of upper turnplate evenly. The material falls to circle under the centrifugal force and comes down to raceway of ring to be crushed into powder. After grinded in the first race way, the material goes to the second and third turnplate. The blower inhales the external air into the mill and carries the powder after third turnplate into powder-separator. Turbine in the separator makes the coarse powder drop down and regrinded and the fine powder shall go into cyclone powder collector together with air current and go down through discharge valve as final product; at the same time, air current with a little dust goes out through blower and muffler after purified by filter.

Feature
1. Ultra-fine powder processing
Using fluid structure, improve the screening efficiency, and ultimately disposable fineness can reach 2500 mesh.
2. Open system reduces the temperature of the mill
The entire production line using an open system, reducing the heat generated by the body polishing, producing better shape powder, but also the full range of equipment run more stable.
3. Safe and reliable operation of grinding chamber
Compared with ordinary mill, Three-rings Medium-speed micro-powder grinder grinding chamber has no rolling mill and screws, so there is no wearing problem of bearings and other seals, avoiding screw loosening problem.
4. Environment friendly 
With pulse dust collector, air compressor, muffler, there is no dust pollution, during operating, low noise, greatly reducing the dust and noise pollution, truly clean, environmentally friendly.