Coal MillCoal Mill

Introduction:
The wind swept coal mill was used for grinding and drying of different hardness of coal equipment, which is mainly composed of feeding device, main bearing, rotating part, transmission device, feeding device, high pressure starting device and lubrication system. Widely used in cement, thermal power, metallurgy industry, chemical industry, wind swept coal mill of reasonable structure, high grinding efficiency, is the ideal equipment for coal preparation.
 
Working principle:
The coal feeding equipment into the mill feed device in the louver valve. In the material away at the same time, hot air temperature is 300 ℃ or by entering the mill to dry the coal inlet pipe; coal by the inclined slide down the kinetic energy, through the hollow shaft into the cylinder drying chamber, after full drying by diaphragms in the II bin, grinding body is provided with a certain number of cabin of, because of the rotating cylinder, and grading lining plate will be grinding to a certain height, in the use of the impact on landing and friction will coal is crushing and grinding, broken in raw coal and grinding at the same time, by the fans set up after discharge device has good grinding powder together with have used hot air to suck out the mill grinding, fine powder with hot air mixture after separator specially designed will unqualified coarse powder separation, in the back to the mill to grinding, fine powder with hot air mixture is qualified by input cyclone dust collector, then separate the fine powder and hot air.
 
Performance characteristics:
The coal mill is designed on the advantages and disadvantages of our open circuit grinding system has in the traditional, ball mill is a major improvement, not only has all the advantages of open circuit grinding mill, compared with the same specification, the mill output is greatly improved, and the fine, the specific surface area increased, to achieve high yield, fine, provides a new type of grinding equipment for the production of high grade cement. Has the advantages of reliable operation, continuous operation, high production capacity, transmission parts, repair cost.

 
Technical parameter:
Specifications Speed
(r/min)
Feed size
(mm)
Capacity
(t/h)
Grinding charge
(t)
Main motor Main reducer Weight
(t)
Model Power(kw) Speed(r.p.m) Model Speed ration
φ2.2×4.4 22.4 ≤25 8~9t/h 18t YRKK4501-6 250 986 ZD60-11 6.3 36.7
φ2.2×5.8 22.4 ≤25 5.5~7 23.5~25 Y4005-8 280 750 ZD70-10 5.6 45
φ2.4×4.75 21.2 ≤25 14 22~24 YR4501-8 315 740 ZD60-8 4.5 49
φ2.4×4+2 20.2 ≤25 10~11 19 YRKK450-8 250 740 ZDY355 4.5 60
φ2.4×4.5+2 20.2 ≤25 10~12 20.8 YRKK500-8 280 740 JDX45 4.5 68
φ2.6×(5.25+2.25) 19.7 ≤25 9~10 28 YRKK500-8 400 740 ZDY450 4.5 87.4
φ2.8×(5+3) 18.7 ≤25 13~13.5 32 Y5001-8 500 740 JDX560 4.5 102
φ2.9×4.7 19.1 ≤25 14~19 34.4 YR560-8 500 743 MBY560 5.6 79
φ2.5×3.9 21 ≤25 14 21 JR138-8 280 740 ZD70-9 5 49.5
φ3×(6.5+2.5) 18.3 ≤25 17~19 43 YRKK5603-8 630 740 MBY560 5 120
φ3.2×4.8 16.7 ≤25 20 48 YR630-8 630 740 MBY560 5 118
φ3.2×(6.5+2) 16.9 ≤25 20 50 YRKK560-8 710 740 JDX630 5 137
φ3.5×8 17.2 ≤25 55~60 80 YRKK710-8 1000 740 MBY800 6.3 182
φ3.8×(7.75+3.5) 16.7 ≤25 85 85 YRKK710-8 1400 740 JDX90-WX-2A 5.6 215
 
 
 
 
 

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