Fine coal is the main energy source for people's daily production and life, and the grinding of fine coal naturally relies on professional grinding equipment. Due to the fact that coal powder is a flammable and explosive substance, the selected crusher must be professional, efficient, noise reducing, and environmentally friendly.
In the development of society and the progress of industries, environmentally friendly, efficient, energy-saving and environmentally friendly grinding machine equipment has an increasing market share, and it has become a powerful device that can help society develop rapidly. In the coal industry, pulverized coal is the most common one. The more fully it burns, the higher its utilization rate will be. Pulverized coal is a common fuel in the calcination process of lime kiln, and professional vertical mill equipment is helpful to improve the processing efficiency and output of pulverized coal.
Vertical grinding machine is an efficient, energy-saving, and noise reducing grinding equipment, as well as a new type of grinding equipment specially developed in response to the production needs of energy conservation and emission reduction. Vertical mill is a new type of mill that integrates drying, fine grinding, classification, and transportation. It has been widely used in various industries such as coal, cement, slag, desulfurization in power plants, and non-metallic minerals.
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.
Parameter Table of Coal Vertical Mill
| 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 |
Engineering Cases
Engineering Design and Equipment Manufacturing Supply of HVM2800M Vertical Pulverized Coal Preparation System
Processing material type: bituminous coal
Capacity: ≥ 80t/h
Product fineness: 200 mesh, 85% pass
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Vertical Coal Powder Grinding Mill For Coal Grinding In Cement Plant Images
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