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Coal Mill

Coal Mill

Product specification: Φ2.2×4.4m-Φ3.8×7.25+3.5m

Processing capacity: 8-43t/h

Processible materials: raw coal.

Application range: cement and construction materials production, thermal power generation, metallurgy industry, chemical engineering, etc.

Advantages: high production efficiency; the adoption of the new material scale board increases the abrasive resistance and service life as well as reduces the changing times for the wear parts.

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Overview

In coal-fired power plants coal mills are used to pulverize and dry to coal before it is blown into the power plant furnace. The coal is feed into the coal mill through a central inlet pipe where gravity is used to lead the coal to the bottom of the mill, where the grinding table and some heavy rollers pulverizes the coal to particles.

Coal Mill

Coal mill is major equipment of cement plant and used for drying and grinding coal. The equipment mainly consists of feed device, main bearings, rotating parts, drive device, selling device, high-voltage start-up device and lubrication system.

As the “black blood of industry”, coal is usually ground into micro size powder, which can ensure a high combustion efficiency. However, different degrades of coal are used in different application with different requirements. Zenith can supply all kinds of coal mills to process coal ores like hard coal, woody lignite and lignite, anthracite coal and petroleum coke. Besides, Zenith’s coal mills can be installed with other assistant equipment, such as the bag-type dust collector and electric magnetic iron mover, to meet the requirements of any industry.

Technical Data

Spec.(m)
Item
Φ2.2
×4.4
Φ2.4
×4.75
Φ2.4
×4.5+2
Φ2.5
×3.9
Φ2.6
×5.25+2.25
Φ2.8
×5+3
Φ2.9
×4.1
Φ3.0
×6+3
Φ3.2
×6.75+2
Φ3.4
×6+3
Φ3.8
×7+2.5
Φ3.8
×7.25+3.5
Speed
(r/min)
22.4 20.4 20.4 20 19.7 18.3 18.8 17.3 16.9 17.5 16.4 16.4
Capacity
(t/h)
8~
9
12~
14
11~
12
10 13~
14
16~
17
14~
16
19~
20
27~
29
28~
30
38~
40
41~
43
Fineness
R80 (%)
10-12 8-10 8-10 8-10 8-10 8-10 8-10 8-10 8-10 12 12 12
Feeding
Size (mm)
<25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25 <25
Grinding
Media
Loading
(t)
20 22 22.5 22 28 32 35 43 50 55 80 85
Mositure
(%)
Inlet <10 <10 <10 <10 <10 <12 <10 <10 <10 <12 <12 <12
Outlet <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2
Temp.
(℃)
Inlet <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350 <350
Outlet 60~80 60~80 60~80 70~90 70~90 60~80 60~80 70~90 80~90 60~80 60~80 60~80
Main
Reducer
ZD60 ZD60 ZD60

ZD60 MBY450

ZD70
MBY450

ZD70 MBY500 ZD80 MBY560 ZD80 MBY560 JDX630 JDX710 MBY710 MBY800
Main
Motor
(kw)
250 280 315 315 400 500 500 630 710 800 1250 1400
Weight
(t)
46 54 76 62 98 107 78 124 148 162 178 220

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Stone crushing machine
Ore processing machine
Cement Making Machine
Powder Grinding Equipment
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  • Tanxiang Road,Zhengzhou city,Henan province,China.

  • Telephone:+86-371-67833171

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