Coal Grinding Mill

Coal grinding mill is a new device introduced international advanced technology. And it is the main equipment in cement plant for both drying and grinding powder. Compared with the ordinary ball mill, it has advantages of larger capacity, finer particle and bigger specific surface. Therefore, it is ideal equipment for pulverized coal preparation.
Working principle of coal grinding mill:
Coal grinding mill mainly consists of the feeding device, main bearing, rotary part, driving device, discharging device, high pressure starting device and lubricating system.
When the raw materials are conveyed into mill by feeding device, and through wind pipe, the heat wind enters in; they will exchange the heat fully along the barrel rotation. And then, the coal will be crushed and grinded, at the same time, with the heat wind, the powder will be out by discharging device.
Coal Gridning Mill Features and Benefits:
1. Rational structure, high grinding efficiency.
2. Low investment, few electricity and energy consumptions.
3. Simple and safety operation, reliable and steady performance.
4. Low noise, large capacity, and high economic benefits.
Coal Gridning Mill Technical Parameters:

Spec. (m)	Rotary speed(r/min)	Feed size mm	Capacity t/h	Load of grinding media t	Main motor			Main reducer		Weight (exclude motor and reducer)t
					Model	Powerkw	Speedr.p.m	Model	Ratio
Φ1.7X2.5	24.5	≤25	3-5	7.5	JR116-6	95	970	ZD40	4.5	22
Φ2.2X3	22	≤25	5-6	13	JR136-8	180	740	ZD50	4.8	31.48
Φ2.2×4.4	20.4	≤25	8-9	18	YRKK4501-6	250	986	ZD60-11	6.3	36.7
Φ2.4×4.75	20.4	≤25	9-11	22-24	YR4501-8	315	740	ZD60-8	4.5	49
Φ2.4×(6+1.5)	20.2	≤25	14-16	31	JR158-8	380	740	ZD70	5	77.3
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	YRKK560	630	740	MBY560	5	120
Φ3.2×(6.5+2.5)	16.9	≤25	20	50	YRKK560-8	710	740	JDX630	5	140
Φ3.4×(6+3)	17.47	≤25	20-24	54	YRKK630-6	700	988	MBY710	7.1	135
Φ3.6×(6+3)	17	≤25	30-32	60	YRKK710	1000	740	MBY800	6.3	183
Φ3.8×(7.75+3.5)	16.7	≤25	85	85	YRKK710-8	1400	740	JDX90	5.6	215