LM Vertical Roller Mill

LM Vertical Grinding Mill

LM Vertical Roller Mill

LM Vertical Roller Mill is the newest grinding machine, which integrates the advanced international technology and years of rich experience. It is ideal equipment that integrates crushing, drying, grinding and grading conveyor all together.

For those mining investors who want to get a cheap price and cost of mining grinder, Zenith's LM vertical roller mill can meet their particular requirements.

LM vertical roller mill Benefits

  1. The whole plant is a vertical structure of strong systematic characteristic, so it occupies small area. From the crushing of raw material to grinding and packing is an independent production system. Compared with other milling plants, its passing ratio achieves 99%, this is what other mill cannot reach.
  2. Driving system of main frame adopts airtight gearing and pulley, drives smoothly and operates reliably. The electric control system is centralized controlled, so the automaticity is high, no people are needed in the operating room.
  3. Its automatic control system can reach remote control, which is easy to operate; there is the device to prevent roller sleeve contact with disc liner directly, and avoid the destructive impact and severe vibration; we can turn the rotating arm by repairing fuel tank, replace the roller and liner are more convenient, which can reduce the downtime.
  4. It features small vibration, low noise, and sealing device as a whole, and the system also works with no pressure and dust spills.

vertical roller mill Main Appliciation

LM vertical roller mill is mainly applied in the grinding process of metallurgy, building materials, chemical, mining and other mineral industries, and suitable for grinding quartz, feldspar, calcite, talcum and other non-flammable burst materials whose Mohs hardness are below 9.3.

LM Vertical Grinding Mill Appliciation

Vertical Roller Mill Operation

The motor drives the grinding table through decelerator. The materials fall down the center of grinding table from feed opening. At the same time, hot air comes into the mill from the air inlet. Due to the centrifugal force, materials move to the edge of the grinding table. The materials are pulverized by the roller when by pass of the groove on the grinding table. The crushed materials are brought up by vane high-speed air stream, the larger particles fall down to the grinding table for regrinding.

When the materials in the air stream pass the separator on the top of the mill, the coarse powder fall down the grinding table for regrinding under the function of rotation rotor. The fine powder comes out with the air stream,and is gathered by the dust catcher. The materials content with moisture will be dried when they meet the hot air stream. Through adjusting the temperature of the hot air stream, it can meet different material's requirement, and also through adjusting separator, it can reach proper fineness of materials.

Technical Data

LM Vertical Grinding Mill
Model LM
130K
LM
150K
LM
170K
LM
190K
LM
220K
LM
130M
LM
150M
LM
170M
LM
190M
LM
220M
LM
130N
LM
150N
LM
170N
LM
190N
LM
220N
Wheel diameter(mm) 1300 1500 1700 1900 2200 1300 1500 1700 1900 2200 1300 1500 1700 1900 2200
Output (th) 10-30 13-40 18-57 23-72 36-110 10-15 16-22 20-28 26-35 35-50 5-14 7-20 8-27 9-30 18-55
Finish fineness µm 170-45 170-45 170-45 170-45 170-45   170-45 170-45 170-45 170-45 170-45
Mesh 80-325 80-325 80-325 80-325 80-325   80-325 80-325 80-325 80-325 80-325
Coal powder fineness (R0.08) 5-20% 5-20% 5-20% 5-20% 5-20%  
Coal powder moisture (%) <1% <1% <1% <1% <1%
End product moisture (%) ≤1% ≤1% ≤1% ≤1% ≤1% ≤1% ≤1% ≤1% ≤% ≤1%
Grinding material particle size D80 (mm) <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
Grinding material max feed size(mm) <38 <40 <42 <45 <50 <38 <40 <42 <45 <50 <38 <40 <42 <45 <50
Moisture of grinding material not to dry (%) <4% <4% <4% <4% <4% <4% <4% <4% <4% <4%
Matieral moisture of into mill (%) <15% <15% <15% <15% <15%
Moisture of grinding material need to dry (%) 4%-15% 4%-15% 4%-15% 4%-15% 4%-15% 4%-15% 4%-15% 4%-15% 4%-15% 4%-15%
Into mill air temperature (℃) <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350
Out of the mill air temperature (℃) 70-95 70-95 70-95 70-95 70-95 75-95 75-95 75-95 75-95 75-95 70-95 70-95 70-95 70-95 70-95
Raw coal hardgrove grindability index (HGI) >55 >55 >55 >55 >55
Main motor power (kw) 200 280 400 500 800 185 250 315 400 500 200 280 400 500 800
Contour dimension Length (mm) 5520 6550 7170 7580 8080 5520 6550 7170 7580 8080 5520 6550 7170 7580 8080
Width (mm) 2500 3070 3460 3320 4660 2500 3070 3460 3320 6700 2500 3070 3460 3320 4660
Height (mm) 7060 7560 8300 8960 9020 7060 7560 8300 8960 9020 7060 7560 8300 8960 9020

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