HGM series Three-ring Micro Powder Milling machine (calcite carbonate grinding machine, chalk grinding machine, limestone grinding machine, dolomite grinding machine, kaolin grinding machine, bentonite grinding machine , talc grinding machine, mica grinding machine, magnesite grinding machine, pyrophillite grinding machine, ceyssatite grinding machine, barite grinding machine, gypsum grinding machine, alunite grinding machine, granite grinding machine, fluorite grinding machine, phosphate rock grinding machine, kalium ore grinding machine , float stone grinding machine) is mainly applied to non-inflammable, non-explosive and brittle materials with Mohs hardness under six. Such as calcite (calcite carbonate, calcium carbonate), chalk, limestone, dolomite, kaolin, gypsum, etc, totally more than 100 kinds of materials. Product fineness can be controlled between 0.047 and 0.005mm.  

           

HGM series Three-ring Micro Powder Milling machine Performance and features:
1.  high efficiency
Under the same final size and power, the product capacity of ultrafine mill is twice than jet mill and agitation mill.
2.   Longer lifetime of spare parts
The roller and ring are made of special material, which improve the grinding efficiency a lot. For same material and final size, the lifetime of its wearing parts can reach to more than one year, about 2-5 times as long as that of vertical shaft impact crusher and turbo-mill. Especially when handling calcium carbonate and calcite, the lifetime can reach 2-5 years.
3.  High safety and reliability:
There are no rolling bearings and bolts in grinding cavity, so problems caused by bolts shedding or wear of bearings and seal components will never happen.
4. High fineness of products
The product fineness can reach D97 ≤ 5μm.
5. Environment friendly
The application of pulse dust collector and muffler reduce the pollution and noise of the dust, which has reached national environment protection standard.
HGM series Three-ring Micro Powder Milling machine Production Line Configuration:
The whole set HGM Ultra Fine  Grinding  machine(calcite carbonate grinding machine, chalk grinding machine, limestone grinding machine, dolomite grinding machine, kaolin grinding machine, bentonite grinding machine , talc grinding machine, mica grinding machine, magnesite grinding machine, pyrophillite grinding machine, ceyssatite grinding machine, barite grinding machine, gypsum grinding machine, alunite grinding machine, granite grinding machine, fluorite grinding machine, phosphate rock grinding machine, kalium ore grinding machine , float stone grinding machine) consists of hammer crusher, bucket elevator, storage hopper, vibrating feeder, main unit, inverter classifier, cyclone collector, pulse deduster system, high pressure positive blower, air compressors and electrical control systems.
HGM series Three-ring Micro Powder Milling machine Working Principle:
The main bearing and each dial are driven by electromotor of main machine through reducer, and numbers of rollers, which are rolling in the ring, are driven by dial through plunger. After crushed by hammer crusher, the big materials become small ones and are sent to storage hopper by elevator and further sent to the middle of first dial evenly by the electromagnetic vibrating feeder and feeding pipe. The materials will be driven to the edge of dial by centrifugal force and fall down into the ring, crushed and grinded by roller, and become powder after production of three rings. The high pressure centrifugal blower will inhale air from outside and blow the crushed materials to classifier. The rotating turbo in the powder concentrator will make the coarse materials return to the mill and reground, while the fineness will mix with the air and go into the cyclone and be discharged in the discharge bin, which is at the bottom of it. The air, which mixed with very little fineness, will be purified by impulse duster and discharged by blower and muffler.
HGM series Three-ring Micro Powder Milling machine Technical Data:

Note:Any change of technical data shall not be advised additionally.