LM Vertical mill --- coal grinding mill

LM Vertical mill --- grinding mill

Vertical mill

---coal grinding mill     Brief introduction
LM series vertical mill is the newest grinding machine, which integrates the advanced international technology and years of mill-producing experience .

Vertical mill

is an ideal grinding mill that integrates crushing, drying, grinding and grading conveyor all together.

Vertical mill

---coal grinding mill    Product Application
LM series vertical mill can be widely used in cement making, power,metallurgy, chemical and nonmetalliferous ore industries. The grinding mill is used to grind lumpy, granular and powdery materials to the required size. Specialized for the high production of superfine pyrophyllite powder making in glass fiber industry. And the

vertical mill

is specialized for the high production of gangue powder making in coal industry. Specialized for the high production of various of chemical raw material powder making in the chemical industry. It is a necessary grinding equipment for the high production of mineral powder in the non-mental mine industry and large scale powder making in many other industries.

Vertical mill

--- coal grinding mill     specification
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

Vertical mill

--- coal grinding mill     Features & benefits
1、simple structure, easy maintenance; reliable performance, low operation cost: high crushing ratio.
2、low investment cost, low operation cost, high drying ability,reliable operation, stable quality, convenient maintenance, pro-enviroment.
Vertical mill --- coal grinding mill     working principle
The motor of

vertical mill

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

vertical mill

can reach proper fineness of materials.