Coal Mill 40 T/H Energy Saving Vertical Coal Mill, High Production Low Consumption
Product Introduction:
Why do power plant coal mills use vertical mills?
The power plant coal mill, as a specialized equipment for grinding coal powder, is equipped with explosion-proof devices and anti-static treatment devices, as well as a full pulse dust removal system. The scientific and reasonable process flow is an ideal specialized grinding equipment for grinding coal powder. The raw coal is stored in the raw coal bin, measured by the belt feeder below the raw coal bin, and then sent to the vertical mill. After drying, crushing, and powder selection, the coarse coal powder with unqualified fineness falls back onto the grinding disc for grinding, and the qualified coal powder is discharged with the airflow.
HVM vertical roller mill is an energy-saving grinding equipment that combines mature vertical grinding technology, successful foreign experience, and our company's technological innovation and upgrading. It integrates crushing, drying, grinding, grading, and conveying, and can be widely used in industries such as cement, electricity, metallurgy, chemical industry, non-metallic minerals, and focuses on the three major fields of non-metallic minerals, coal powder, and slag.
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 |
Working Principle:
The motor drives the grinding disc to rotate through the reducer, the material falls into the center of the grinding disc from the feed inlet, and the hot air enters the mill from the air inlet. Under the action of centrifugal force, the material moves to the edge of the grinding disc, and is crushed by the grinding roller when passing through the annular groove on the grinding disc. The crushed material is carried by the high-speed airflow at the air ring at the edge of the grinding disc, and the large particles fall directly on the grinding disc. Re-grinding, when the material in the airflow passes through the dynamic and static separator, under the action of the rotating rotor, the coarse powder falls on the grinding disc for re-grinding, and the qualified fine powder is ground together with the airflow and collected in the powder collecting device, which is product. Moisture-containing materials are dried during contact with hot gas to achieve the required product moisture.
Advantages
* High grinding efficiency and low power consumption;
* Less metal consumption per unit product;
* The technological process is simple, and the functions of material grinding, drying and powder selection are completed at the same time;
* Small footprint, compact layout, light weight of system equipment, and low investment in civil construction.
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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40 T/H Energy Saving Vertical Coal Mill High Production Low Consumption Images
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