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Coal Mill

Coal mill is an important auxiliary equipment for coal-powder furnace, it has three methods to crush the coal lump and grind them into powder,it is crushing, impacting and grinding. Air swept coal mill is the main equipment in cement plant for both drying and grinding of the powders. Compared with the ordinary ball mill, it has advantages of higher capacity, more convenient operation, safer usage, and more reliable performance. Coal mill is used to grind, pulverize and dry coal before the coal is transmitted the boiler. The coal is feed into the coal mill via a inlet pipe so that the roller coal mill such as ball mill or vertical mill can pulverize the coal into particles.

Features

1. Higher yield;
2. Convenient operation;
3.Safer usage;
4. Reliable performance

Repair method

each bearing are using a No. 1 MOS2 grease or ZM - 2 sodium grease lubrication, roller bearing refueling once every two classes, the host bearing refueling once every four classes, blower bearings refueling once every month. Bearing temperature rise to a maximum of 70 degrees Celsius, was found to be breaking the bearing overheated bearings and bearing chamber cleaning accessories such as cleaning once.

Technical Data
Model specification (m) Capacity (t/h) Rotating speed (r/min) Transmission type Motor Reducer Weight(t)
Remark Model Power(kw) Model Reduction ratio
??2.2??3 5-6 22 Edge YR355M-8 185 ZD50 5 37 ??
??2.2??4.4 8-9 22 Edge YR355M-6 220 ZDH50 6.3 46 ??
??2.4??4.75 14 20.4 Edge YR400-8 280 ZD60 4.5 54 ??
??2.4??4+2 10-12 20.2 Edge YRKK450-8 250 ZDY35580 4.5 59 ??
??2.4??4.5+2 16-17 20.4 Edge YR4005-8 280 JDX-450 4.5 76 ??
??2.6??4.8+2 9-10 20 Edge YRKK5002-8 400 RZD75 4.5 91 ??
??2.6??5.25+2.25 13-14 19.7 Edge YRKK500-8 400 ZDY400-4.5-11 4.5 98 ??
??2.8??5+3 8-10 18.9 Edge JRQ1512-10 480 MCD-70 3.55 107 ??
??3??9 18-20 18.3 Edge YBKK5560-8 630 MBY560 5 124 ??
??3.2??9.5 28 17 Edge YR800-8/1180 800 NFM710 6.3 140 ??
??3.4??5.25+2.8 30 17.47 Edge YRKK-56-6 900 JDX-800 7.157 169 Exclude main transmission
??3.8??7.25+3.5 41-43 16.7 Edge YR630-8 1400 MBY800 5.6 220 ??

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