Micro Powder Grinding Mill

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HGM Series Micro Powder Grinding Mill is the equipment specializing in producing fine and superfine powder of non-inflammable, non-explosive and brittle materials with Mohs's hardness under six, such as calcite, chalk, limestone, dolomite, kaolin, bentonite, talc, mica, magnesite, illite, pyrophyllite and vermiculite, sepiolite, attapulgite, rectorite, diatomite, barite, gypsum, alunite, graphite, fluorite, rock phosphate, Kalium ore, pumice, etc., totally more than 100 kinds of materials. Working Principle of Micro Powder Grinding Mill HGM series micro powder grinding mill mainly consist of main unit, classifier, powder collector, dust cleaner, blower, muffler, sound-proof room, crusher, bucket elevator, storage hopper, and vibrating feeder. After crushed by hammer crusher, the large materials become small ones and are sent to storage hopper by elevator, and then evenly sent to the upper distribution plate of the turn plate by vibrating feeder and sloping feeding pipe. When the grinding mill is at work, all the grinding rollers are rolling in the ring, and the materials are driven to the edge of the turn plate by the centrifugal force and fall down into the grinding chambers where the materials are repeatedly pressed, crushed and grinded by the rollers. The high-pressure air blower constantly inhales air within the grinding mill and, in turn, the airflow with crushed materials are brought to the classifier whose high-speed impeller will screen the airflow: the unqualified particle size will fall and return to the mill for being reground while the qualified particle size mixed with air will go into the cyclone powder collector. Most of the qualified powders will fall and exit from the discharging valve at the bottom; a small proportion of the fine powders, with airflow, moves to the dust cleaner, and clings to the surface of the filter bags. At the same time, the fine powders clinging to the surface fall down by the sudden vibration of the filter bags, which is caused by the instantly ejected high-pressure gas controlled by the pulse valve. The materials from the above two lots are sent by the conveyor at the bottom to get finished powders packed. In addition, filtered clean air will be emitted from the air outlet of muffler in the end. Features of Micro Powder Grinding Mill ●High Efficiency Under the same finished final size and the same motor power, the capacity of micro powder grinding mill is twice as much as jet mill, mixing grinder and ball mill. ●Long lifecycle of spare parts The ring and roller are forged by special material with high utilization. Under the same grinding material and finish special size, the lifecycle of spare parts is about one year, which is 2-3 times longer than impact mill or turbo mill. Furthermore, the lifetime can reach 2-5 years for grinding calcite carbonate. ●High safety and reliability As no rolling bearings or screws in grinding cavity, there are no problems caused by bolts shedding or rapid wear of bearings and seal components. ●High fineness and flexible adjustment The final fineness of the grinding materials can be adjusted between 325 meshes and 3000 meshes, and the product fineness can reach D97≤5μm. ●Environment-friendly The application of pulse deduster and muffler greatly alleviates the dust pollution and noise. Model HGM8021 HGM9024 HGM10027 HGM1006 mm(Ring Diameter)800 900 1000 1000 Ring Number/ pcs 3 3 3 4 Roller Number/ pcs 21 24 27 36 Main Shaft Speed /r.p.min 30 200 180 180 Input Size /mm ≤20 ≤20 ≤20 ≤20 Finished Size /μm 5-47 5-47 5-47 5-47 Capacity t/h 0.4-4.5 0.4-5.5 0.6-6. 0.7 -7.5 Outlet Size LXWXH /m 13.9x4x6.2 14.7x4.8x7.2 18x4.6x8.6 18x4.6x8.6 Power /Kw 145 192 263 263

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Shanghai Clirik Machinery Co., Ltd.

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