Vertical mill, belonging to energy-saving and noise reducing grinding equipment, is also professionally manufactured in response to energy-saving and emission reduction production requirements. Vertical mill has the characteristics of drying, grinding, grading, and conveying, and is currently widely used in many fields such as coal mines, cement, slag, desulfurization in power plants, non-metallic mines, and so on.
【Grinding field】: For various non-metallic mineral materials with Mohs scale hardness below 7 and humidity within 6%, the grinder is widely used in the production fields of power, metallurgy, cement, chemical industry, rubber, paint, ink, food, medicine, etc.
【Performance characteristics】: It integrates drying, grinding, grading, and conveying, with high grinding efficiency, low power consumption, large feed particle size, easy adjustment of product fineness, simple equipment process flow, small floor area, low noise, low dust, easy use and maintenance, low operating costs, and low consumption of wear-resistant materials.
Working principle: The electric motor drives the grinding disc to rotate through a reducer, and the material falls into the center of the grinding disc from the feeding port. At the same time, hot air enters the grinding chamber from the air inlet. Under the action of centrifugal force, materials move towards the edge of the grinding plate. When passing through the circular groove on the grinding plate, they are crushed by the grinding roller. The crushed materials are picked up by the Jet stream at the wind ring at the edge of the grinding plate. Large particles fall directly onto the grinding plate for grinding again. When the materials in the airflow pass through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls onto the grinding plate for grinding again. The qualified fine powder is grinded together with the airflow, Collect in the powder collection device, which is the product. Materials containing moisture are dried during contact with hot gases to achieve the required product moisture.
Technical DATA
| Specification | HVM1250 | HVM1300 | HVM1500 | HVM1700 | HVM1900 | HVM2200 | HVM2400 | HVM2800 |
| Grinding table median diameter(mm) | 1250 | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | 2800 |
| Capacity(t/h) | 10-15 | 10-15 | 14-22 | 20-28 | 26-35 | 35-45 | 45-56 | 70-90 |
| Coal Moisture(%) | ＜15 |
| Coal Power Fineness(%) | R0.08=2-12 |
| Coal Power Moisture(%) | ≤1 |
| Main Motor Power(kw) | 110/132 | 160/185 | 220/250 | 315/355 | 400/450 | 450/500 | 560/630 | 900/1120 |
Product advantages:
1. Large production capacity, low energy consumption, green and environmentally friendly.
2. The roller sleeve can be used upside down, which is beneficial for increasing the output of coal mills, reducing wear, and extending its service life.
3. Install explosion-proof devices to ensure safe production. The upper shell is equipped with an explosion-proof valve to prevent the explosion of coal powder in the mill and ensure the safe use of the equipment.
Structural features:
1. The foot shaped grinding disc and tire shaped roller sleeve used in the coal vertical mill are more suitable for coal powder grinding.
2. Grinding roller bearings do not require special sealing. The grinding roller device adopts a pair of self-aligning roller bearings, and the bearing sealing chamber extends to the outside of the machine casing, avoiding contact with dusty gases. Therefore, a simple sealing can ensure that the grinding roller bearings do not enter dust and do not require sealing the fan.
3. The transmission part of the mill does not require an auxiliary transmission device.
4. The slag removal part is simple. The coal vertical mill has less slag discharge, and the slag discharge port is equipped with a cover plate, so there is no need to install a slag discharge valve.
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10 - 50t/h High Efficiency Vertical Coal Mill For Power Plant Desulfurization Images
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