Products Description
Bellian Air Swept Coal Mill is specially designed for coal powder preparation in cement plants and power plants. It integrates grinding and drying functions, can grind coal with moisture content up to 20% into qualified coal powder. Our air swept coal mill adopts advanced structure design and high-quality wear-resistant materials, which has high grinding efficiency and stable operation. It is the ideal equipment for coal powder preparation.
Working Principle
The air swept coal mill is a horizontal rotating cylinder filled with steel balls. Hot air enters the mill from the feeding end, while coal is fed into the mill at the same time. The coal is crushed and ground by the steel balls, and dried by the hot air at the same time. The ground coal powder is carried out of the mill by the hot air and enters the separator. The qualified coal powder is collected by the dust collector, while the unqualified powder is returned to the mill for re-grinding.
Performance Features
Integrated grinding and drying function, can grind coal with moisture content up to 20%
High grinding efficiency, low energy consumption, large processing capacity
High manganese steel lining plate and high chromium steel balls, strong wear resistance, long service life
Equipped with high-efficiency separator, accurate fineness adjustment, uniform coal powder particle size
Simple structure, reliable operation, easy maintenance, low operation cost
Wide capacity range from 5 t/h to 50 t/h, suitable for different production scales
Technical Specifications
| Specification (Diameter × Length) (m) | Cylinder Speed (r/min) | Grinding Media Loading (t) | Main Motor (KW) | Main Reducer |
| Φ1.7×2.5 | 24.5 | 7.5 | 95 | ZD40-8 |
| Φ1.8×(3+1.5) | 25 | 7.8 | 95 | ZD40-10 |
| Φ2.2×3 | 22 | 13 | 180 | ZD50-9 |
| Φ2.2×4.4 | 22.4 | 19 | 240 | ZD60-11 |
| Φ2.4×(4.5+2) | 20.4 | 20.8 | 355 | ZD70-8 |
| Φ2.4×4.75 | 20.4 | 22 | 280 | ZD60-8 |
| Φ2.6×(5.25+2.25) | 19.7 | 28 | 400 | ZDY400 |
| Φ2.8×(5+3) | 18.7 | 32 | 500 | MBY560 |
| Φ2.8×(5.75+2.25) | 18.7 | 34 | 500 | MBY560 |
| Φ3×(6.5+2.5) | 18.3 | 43 | 630 | MBY560 |
| Φ3.2×(6.5+2) | 17.08 | 50 | 710 | MBY630 |
| Φ3.2×(7+2.5) | 17.08 | 55 | 710 | MBY630 |
| Φ3.4×(6+3) | 17.47 | 54 | 900 | MBY800 |
| Φ3.4×(6.5+2.5) | 17.47 | 54 | 900 | JDX-80 |
| Φ3.5×8 | 17.2 | 80 | 1000 | MBY800 |
| Φ3.8×(7+2.5) | 16.7 | 75.5 | 1250 | MBY(X)800 |
| Φ3.8×(7.5+3) | 16.7 | 80 | 1400 | JDX-90 |
| Φ3.8×(7.75+3.5) | 16.7 | 85 | 1400 | JDX-90 |
Application Scenarios
Mainly used in cement plants and power plants for coal powder preparation. Also suitable for grinding other combustible materials in metallurgy, chemical industry and other industries. It is the key equipment for providing fuel for rotary kilns and boilers.
Buying Guide
When choosing an air swept coal mill, you should consider: 1. The required coal powder production capacity; 2. The type and moisture content of coal; 3. The required fineness of coal powder; 4. The temperature of hot air available. We will recommend the most suitable model according to your specific needs.
FAQ
What is the maximum moisture content that the coal mill can handle?
Our air swept coal mill can handle coal with moisture content up to 20%. If the moisture content is higher, we can increase the temperature of hot air or pre-dry the coal to ensure normal operation.
What fineness of coal powder can be produced?
The fineness of coal powder can be adjusted between 80-200 mesh according to your requirements. We can adjust the separator to produce coal powder with different fineness to meet the combustion requirements of different kilns and boilers.
Is the coal mill explosion-proof?
Yes, our air swept coal mill is equipped with explosion-proof devices including explosion vent, pressure relief valve and fire extinguishing system to ensure safe operation. We also provide explosion-proof electrical equipment according to your requirements.
What is the service life of the wearing parts?
The service life of the lining plate and steel balls is about 6-12 months depending on the hardness of coal. We provide high-quality wearing parts with preferential prices and fast delivery.
