Coal Mill, Coal Crusher - HXJQ Machinery

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Coal Mill

Coal Mill

Production capacity: 8–43 t/h
Feeding size: <25 mm
Main motor: 250–1250 kw
Weight: 46–220 t
Material handling: raw coal, etc

Overview

Coal mill is the equipment used for grinding and drying coal with different hardness and it is mainly composed of feeding device, principal axis, rotating part, transmission part, discharging part, high-pressure starting device and lubrication system.

Coal mill is widely used cement, building material, thermal power generation, metallurgy and chemical industry and it has the reasonable structure and high powder grinding efficiency, so that it is the ideal equipment for making coal powders.

Advantages

This grinding mill adopts edge driving and the electro-motor rives the grinding mill through the reducer and rack wheel and pinion. The grinding mill adopts air-swept structure with a drying bin, so that it had strong adaptability to the water containing in the raw coal.

coal_mill

Inside the powder grinding cabin, the ladder lining board, double-ladder lining board and ripple lining board are arranged in a combined type, thus improving the powder grinding ability of the grinding mill. The feeding device adopts window-shade structure that the air can obliquely go in, thus enhancing the heat exchange ability of the grinding mill and effectively avoiding the material blockage of the feeding mouth of the coal mill.

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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