Specifications

Air-swept Coal Mill for Sale:
1. For cement, silicate, gypsum, limestone etc.
2. Wet or dry ball mill;

2014 Air-swept Coal Mill for Sale

The air-swept coal mill is used for grinding and drying coals. It mainly consists of feeder, main bearing, rotation device, transmission device, discharging device, high pressure start-up device and lubricating system. It is widely used in the cement making industry, steam power industry, metallurgy industry, and chemical industry and so on. The air-swept coal mill has reasonable structure and high efficiency. It is the ideal equipment for making coal powder.

Features of Air-swept Coal Mill for Sale
The air-swept coal mill is brim driven by motor through reducer and gears. It has air-swept structure with drying chamber, which allows the coal mill to accept raw material with different moisture. Inside the cylinder there is in sequence stepped lining plate, double stepped lining plate and ripple lining plate, which increase the capacity of the coal mill. The shutter-structured inlet can improve the heat exchange and avoid the material block up the inlet of the coal mill.

Working principle of Air-swept Coal Mill for Sale
The raw material will be fed into the feeding device of coal mill by feeder. And at the same time, the hot air with the temperature of 300°C enters into the feeding device through the air line. The lifting blade lift the raw material and the raw material will become dry due to the heat exchange with the hot air. The dry coal will enter into the grinding cavity through the double-wall partition with lifting blade.
The dry coal will be grinded by the steel balls inside the grinding cavity, and at the same time, the coal powder will be discharged out of the coal mill by the air blower, and the coarse particles will be back to the grinding cavity for regrinding by the spiral device.

Technical parameters of Air-swept Coal Mill for Sale

Specification(m)		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
Rotation 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
Milling fineness (%)		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
Ball load weight (t)		20	22	22.5	22	28	32	35	43	50	55	80	85
Moisture (%)	Raw material	<10	<10	<10	<10	<10	<12	<10	<10	<10	<12	<12	<12
	Final products	<2	<2	<2	<2	<2	<2	<2	<2	<2	<2	<2	<2
Temperature (°C)	Raw material	<350	<350	<350	<350	<350	<350	<350	<350	<350	<350	<350	<350
	Final products	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
Motor power (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