LM Vertical Grinding Mill

LM Vertical Grinding Mill

LM series vertical milling machine is large-scale grinding equipment, which is developed and launched by Zenith, sets medium crushing, drying, grinding, classifying and other functions as a whole, being the ideal equipment in the grinding industry.

Working Principle of LM Vertical Grinding Mill

Motor through reducer drive disc rotates, while the hot air from the air inlet into the vertical mill, the material falls under the spout from the central disc, due to centrifugal force, the material moves from the disc center to the edge of the disc, the disc past the annular groove on the subject rolling mill rolls and crushed material was crushed to continue moving towards the edge of the disc until it is taken away by the wind flow annulus, while large particles of material falling onto the disc again to continue crushing. The material flow through the upper part of the separator, the guide vanes in the role of coarse material from the hopper cone fell on the disc, together with the air out of the grinding powder was collected dust collector system, namely the powder was collected products for vertical mill grind. Materials in contact with the housing process gas is dried to achieve the required product humidity. By adjusting the angle of the separator guide blades and rotor speed splitter, we can achieve the desired thickness of the product.

Application Of LM Vertical Grinding Mill

LM vertical grinding mill machines are widely used in steel mills, power plants, cement plants, large output of pulverized coal preparation and coal gangue powder production. Besides,they are often used in power plant desulfurization lime stone power,Non-metallic mineral industry of various hardness of hundreds of large-scale ore powder production preparation and so on.

The Factors Of LM Vertical Grinding Mill Price

The factors of vertical roller mill include the following aspects:First,the function of the device.The function of the vertical roller mill more complete, the more direct impact on market prices will form due to the construction costs, material costs, the high cost of the technology.Secondly, the price is also affected by the mill stand to market demand, oversupply and less demand for the market value of the law will be opposing the mill price regulation.Finally,the price of LM Vertical Grinding Mill is closely related to device model,different types of vertical grinding mill has different arguments,such as the diameter of the turntable, the material, the material, the electrical power of different fineness of finished material consumption and production lines have a great relationship.Users purchase vertical mill confidential factors comprehensive comparison, try to find minimum investment profit maximum vertical grinding machine manufacturers.

Technical data

LM Vertical Grinding Mill
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%
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