Vertical Mill Overview
vertical millLM series vertical mill is designed by our experts to solve some problems of traditional grinding mills.The remarkably ameliorating of SBM vertical mill is higher capacity and lower consumption.Our LM series vertical mill adopts reliable structure and reasonable process flow integrated with drying ,milling, classifier, elevator. After in combination with the European technology and the market demand,our vertical mill can fully meet the requirement of clients in the high production of powder.The economy indicator of our vertical mill reaches the international lever as well.
Vertical Mill Application
LM series vertical mill can be widely used in cement making, power,metallurgy, chemical and nonmetalliferous ore industries. This series vertical grinding mill used to grind lumpy, granular and powdery materials to the required size.
Vertical Mill Main Features and Benefits
  1. LM series vertical mill can crush, dry, grinding, classifying, so the system is simple, and occupation area is about 50% of ball mill system. In addition, it can be installed outside, so LM vertical mill will reduce a large number of investment costs.
  2. Roller of this series vertical mill compacted materials directly onto the grinding disc, so power consumption is low.
  3. As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, this series vertical grinding mill can meet requirements with different humidity.
  4. LM series vertical mill is equipped with automatic control systems, so remote control makes it easy to operate.
  5. When the material stays in the mill for a short time, vertical mill is easy to detect and control the product particle size and chemical composition, to reduce duplication of milling, stable product quality.
  6. In addition to the above advantages, our vertical roller mill also has the following advantages: maintenance convenience, environmental protection and so on.
Vertical Mill Working Principle
The motor of our vertical mill drives the grinding table through decelerator. When the materials fall down the center of grinding table from feed opening, hot air comes into the mill from the air inlet. Materials inside the vertical mill move to the edge of the grinding table due to the centrifugal force . When passing the groove on the grinding table,the materials are pulverized by the roller. The materials crushed by our vertical mill are brought up by vane high-speed airstream, at the same time the larger particles fall down to the grinding table for regrinding. The materials in the airstream pass the separator on the top of the vertical mill , while the coarse powder fall down the grinding table for regrinding under the function of rotation rotor. In this way,the fine powder comes out with the airstream,and is gathered by the dust catcher of the vertical mill. When the hot airstream inside the vertical mill meet the materials content with moisture,the latter will be dried.Through adjusting the temperature of the hot airstream, our vertical mill can meet different material’s requirement;Through adjusting seperator, our vertical mill can reach proper fineness of materials.
Vertical Mill Specifications
LM Vertical Mill Technical Data
Model LM130K LM150K LM170K LM190K LM220K LM240K
Turnplate diameter (mm) 1300 1500 1700 1900 2200 2400
Capacity (t/h) 10~30 13~40 18~57 23~72 36~114 41~128
Final product size μm 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
Final product water percentage ≤1% ≤1% ≤1% ≤1% ≤1% ≤1%
Max. input size (mm) 38 40 42 45 50 55
Best water percentage of raw material 4% 4% 4% 4% 4% 4%
Drying needed if water percentage is more than 15% 15% 15% 15% 15% 15%
Input wind temperature (℃) 350 350 350 350 350 350
Output wind temperature (℃) 70~95 70~95 70~95 70~95 70~95 70~95
Main motor power (KW) 185~220 250~280 355~400 450~500 710~800 800~900
Overall dimension L mm 3500 4200 4700 8500 10200 11700
W mm 3400 3900 4500 5600 6700 7700
H mm 5800 7100 8300 8800 10600 12200
Weight (t) 48 75 90 100 125 160

Model   LM130M LM150M LM170M LM190M LM220M LM240M
Turnplate diameter (mm) 1300 1500 1700 1900 2200 2400
Capacity (t/h) 10~15 16~22 20~28 26~35 35~45 40~50
Coal powder fineness (R0.08) 15% 15% 15% 15% 15% 15%
Coal powder water percentage 1% 1% 1% 1% 1% 1%
Max. input size (mm) 38 40 42 45 50 55
Input material water percentage 15% 15% 15% 15% 15% 15%
Input wind temperature (℃) 350 350 350 350 350 350
Output wind temperature (℃) 75~95 75~95 75~95 75~95 75~95 75~95
Raw coal Hardgrove grindability index (HGI) >55 >55 >55 >55 >55 >55
Main motor power (KW) 185 250 315 400 500 560
Overall dimension L mm 3500 4200 4700 8500 10200 11700
W mm 3400 3900 4500 5600 6700 7700
H mm 5800 7100 8300 8800 10600 12200
Weight (t) 46 75 94 100 122 157

Note: This specification is just reference, any changes are subject to the LM Vertical Mill products.