HGM Ultra fine grinding mill is designed by SBM R&D department on the basis of multiple innovation and testing. It has been proved by thousands of customers that our ultra fine grinding mill has outstanding features, stable quality, easy operation, and maintenance. It is the ideal equipment for fine powder milling.
Scope of Ultrafine Grinding Mill
HGM Ultra fine grinding mill specialized in producing fine and superfine powder of non-inflammable non-explosive and brittle materials with Moh’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, rockphosphate, Kalium ore, pumice, fly ash, etc., totally more than 100 kinds of materials.
Application of Ultrafine Grinding Mill:
HGM ultra fine grinding mill is an industrial device that breaks solid materials into powder by grinding. Such comminuting is an important unit operation in many processes. It is usually used in metallurgy, building materials, chemical, and mine industries.
Working Principle Of Ultrafine Grinding Mill:
HGM series ultra fine grinding mill mainly consists of main unit, classifier, powder collector, dust cleaner, blower, muffler, sound-proof room, crusher, bucket elevator, storage hopper, and vibrating feeder. After crushed by a hammer crusher, the large materials become small ones and are sent to a 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 ultrafine grinding mill is at work, the main bearing and each dial are driven by the electromotor of the main equipment through a reducer. And all the grinding rollers are rolling in the ring channels driving by dial through plunger.
The materials are driven to the edge of the turn plate by the centrifugal force and fall down into the grinding chambers. And the materials are repeatedly pressed, crushed, and ground by the rollers in grinding chambers. Then the materials fall into multiple layers and to be crushed and ground continuously to micro powder.
The high-pressure air blower constantly inhales air within the grinding mill. In turn, the airflow with crushed materials is 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 the muffler in the end.
Advantages of Ultra Fine Grinding Mill:
The yield is 40% higher than other mills.
High utilization rate of Wear material: 2-5 years.
Adjustable particle size: 325-3000 mesh.
High safety and reliability. The design of the mill is rigorous, so no screw loosening to damage the machine.
Closed system, so it is the green and ideal equipment for environment protection.
Parameter of Ultra Fine Grinding Mill:
| Model | HGM80 | HGM90 | HGM100 | HGM125 | HGM168L |
| Ring Diameter(mm) | 800 | 900 | 1000 | 1250 | 1680 |
| Ring Number (PCS) | 3 | 3-4 | 4 | 4 | 4 |
| Roller Number(PCS) | 18-21 | 24-29 | 28-36 | 30-44 | 30-40 |
| Main Shaft Speed (r. p. min) | 230-240 | 200-220 | 180-200 | 135-155 | 120-130 |
| Input Size (mm) | ≤10 | ≤10 | ≤15 | ≤15 | ≤20 |
| Finished Size (um/mesh) | 74-5(200-2500) | 74-5(200-2500) | 74-5 (200-2500) | 100-6 (150-2000) | 100-9(150-1500) |
| Capacity (t/h) | 0.4-4.5 | 0.6-6.5 | 1-9 | 2-16 | 3.8-30 |
| Outlet Size L*W*H (m) | 13.9*4*6.2 | 14.7*4.8*7.2 | 18*4.6*8.6 | 14*9*10.25 | 26.3*7.5*11.9 |
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