LM Series Vertical Grinding Mills

LM series milling machine is the vertical mill products with independent intellectual property rights, which is based on the advanced grinding technology of my company in the technical advantages of vertical mill products increasingly prominent situation. We actively learn from foreign successful experience, and constantly innovate through R & D team upgrade.

  • Feedstock Size:38-55mm
  • Throughout:10-128T/h
  • Fields Of Application:It is applied to the cement, electric power, metallurgy, chemical industry, mineral industry material mill.
  • Suitable Material:Cement, coal, feldspar, talc, calcite, fluorite, iron ore, copper ore, phosphate rock, graphite, quartz, slag etc.

The advangtage of our products

Vertical Milling Machine Advantages

Low cost, high performance

Set crushing, drying, grinding, grading conveying into a whole, simple, compact layout, covers an area of approximately 50% milling system, but also can open layout, so the cost is greatly reduced.The grinding roller to direct rolling ground material in the disc, low energy consumption, and ball milling system compared to save energy 30% ~ 40%.

Good stability, high reliability

Because of the work roll is not in direct contact with the disk, and the grinding roller and the lining board is made of high quality material, therefore, long service life, less wear. Grinding roller sleeve can be turned to use, thereby prolonging the service life of a times.

The hydraulic pressure boost method increases the grinding force, thus effectively improve the yield and milling efficiency. At the same time, limiting device to ensure its only on material grinding, grinding roller grinding ring to prevent outside contact caused by equipment vibration or even wear.

Ideal product size

Because the hot air in direct contact with the material in grinding, drying ability is strong, can mill system saves a drying machine, saving energy, by adjusting the temperature of hot air, can satisfy the different humidity material requirements.

Due to short residence time of material in the mill, easy to detect and control the product size and chemical composition, reduce duplication of milling, stable product quality. The iron content in the product and contained few, mechanical wear iron is easy to be removed, for the grinding of white or transparent material, the product whiteness and purity.

The data of our products

Vertical Milling Machine Working Principle

The motor drives the grinding disc to rotate by the reducer, etc. the air lock feeder from the feed inlet fall at the center of the grinding disk, and hot air into the air from entering the mill. As the disc rotates, the material in the role of centrifugal force, move to the edge of the grinding disc, the disc of the annular groove by roller compaction and crushed, crushed material by wind ring high-speed airflow with in the edge of the grinding disc, large particles directly onto the disc re grinding, material gas flow through the upper separator, in under the action of rotating rotor, coarse powder from cone to disc re grinding, qualified fine powder along with air flow through the mill, dust collection device, namely product, moisture containing material is dried in the contact with hot air flow, by adjusting the temperature of hot air, can satisfy the different humidity material requirements, to achieve the required product moisture. By adjusting the separator, can achieve the desired products with different thickness.

Model LM130K LM150K LM170K LM190K LM220K LM130M LM150M LM170M LM190M LM220M LM130N LM150N LM170N LM190N LM220N
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% ≤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