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Air-swept coal mill

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Air-swept coal mill

Air-swept coal mill

Feeding Granularity:Φ2.2×4.4m-Φ3.8×7.25+3.5m

Production Capacity:8-43t/h

Application Range:Widely used in cement building materials, thermal power, metallurgical industry, chemical industry, etc

Introduction to air-swept coal mill

Air-swept coal mill is a kind of equipment, mainly used for grinding and drying coal of different hardness. It enables the use of a little energy to get fine products. Air-swept coal mill also makes it possible to grind and classify all at once. Qualified material is discharged as soon as possible while defective item is returned and grinded again, thus unnecessary energy and material consumption is avoided. It is the ideal equipment for grinding coal.

Application scope of air-swept coal mill

The coal mill is used in cement, ceramics products, thermal power generation, chemical industry, chemical fertilizer industry etc.

Air-swept coal mill

Applicable materials of air-swept coal mill

Cement, coal, The ammonium phosphate, potassium chloride, limestone, graphite, mica, Silicon nitride and so on. 

Advantages of air-swept coal mill

1. high grinding efficiency, high energy utilization.

2. reliable, continuous operation, large capacity.

3. less transmission parts and less maintenance cost.

Working principle of air-swept coal mill

With the rotation of the large coal mill cylinder, raw coal and hot air exchange heat in the mill. Coal was dried and crushed and ground at the same time. Then, fine powder is discharged by hot air out of the grinding machine. While, the mixture of fine powder and hot air goes through a specially-designed separator. Then, the coarse powder is separated and returned to the large coal mill again.

Technical Data

Spec. (m)Item Φ1.7×2.5 Φ2.2×4.4 Φ2.4×4.75 Φ2.4×4.5+2 Φ2.6×5.25+2.25 Φ2.8×5+3 Φ3.0×6.5+2.5 Φ3.2×6.75+2 Φ3.4×6+3 Φ3.8×7+2.5
Speed(r/min) 24.5 22.4 20.4 20.4 19.7 18.3 18.3 16.9 17.5 16.4
Capacity(t/h) 3-5 8-9 12-14 11-12 13-14 16-17 19-20 25-30 28-30 38-40
Feeding Size(mm) <25 <25 <25 <25 <25 <25 <25 <25 <25 <25
Grinding Media Loading(t) 7.5 20 22 22.5 28 32 43 50 55 80
Main Reducer ZD40 ZD60 ZD60 ZD60 ZD70
JDX560 JDX710 MBY800
Main Motor(kw) 95 250 280 315 400 500 630 710 800 1250
Weight(t) 29 46 54 76 98 107 124 148 162 215


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