Hefei Hengcheng Industrial Equipment Technology Co., Ltd
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High Capacity Vertical Grinding Mill Machine For Limestone Raw Material
Description
With the further development of the fine powder market, the ultra-fine pulverizer equipment used for grinding fine powder has also been supported and favored by customers.
The main material in the desulfurization project is limestone powder (the fineness is generally required to pass 90% of 325 meshes or 95% of 250 days), and the preparation of limestone powder is generally divided into vertical mill process and ball mill process.
As the desulfurization problem has become particularly prominent in recent years, the type of pulverizing process used is also the key to the success of the desulfurization project. Hefei Hengcheng, as the manufacturer of limestone desulfurization pulverizer, recommends the use of HVM desulfurization limestone powder vertical milling process.
Technical Data
| Model | HVM1250 | HVM1300 | HVM1500 | HVM1700 | HVM1900 | HVM2400 | HVM2500 | HVM2800 |
| Grinding Table Median Diameter(mm) | 1250 | 1300 | 1500 | 1700 | 1900 | 2400 | 2500 | 2800 |
| Capacity(t/h) | 6~9 | 9~13 | 15~20 | 24~32 | 26~35 | 36~45 | 45～58 | 56~80 |
| Material Moisture | ≤5% | |||||||
| Limestone Powder Fineness | 325 mesh (44um) 90% passed | |||||||
| Main Motor Power(kw) | 110/132 | 185/200 | 250/280 | 355/400 | 450/500 | 450/500 | 710/800 | 1120/1250 |
Re:The data based on Mohs'hardness 3-4 material
Limestone Bond Index≤13kwh/t
1: Advantages of vertical mill for desulfurization limestone powder
HVM limestone desulfurization vertical mill is an advanced grinding equipment developed by Hefei Hengcheng Industrial Equipment Technology Co., Ltd. on the basis of widely absorbing advanced technologies of various vertical mills at home and abroad and drawing on a large number of project application experiences, which is safe, environmentally friendly, energy-saving and highly efficient, and integrates drying, grinding, powder selection and transportation functions. The main performance and economic and technical indicators of the equipment have reached the international advanced level.
It has the advantages of high grinding efficiency, low power consumption, large drying capacity, easy adjustment of product fineness, simple process flow, small floor area, low noise, no dust pollution, low wear, convenient maintenance, reliable operation, etc.
The superfine grinding machine has the advantages of safety, environmental protection, energy conservation, high efficiency, and advanced grinding equipment integrating drying, grinding, powder selection and conveying functions.
The fineness of the ground limestone powder is 90% of the passing rate of 325 meshes, and the equipment performance is more stable, the performance price ratio is higher, and the powder output rate is higher. It is an ideal limestone vertical mill.
2, Working principle of limestone vertical mill
The motor drives the grinding plate to rotate through the reducer, the material falls in the center of the grinding plate from the feed inlet, and the hot air enters the mill 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 carried away at the edge of the grinding plate by the high-speed airflow at the wind ring. Large particles directly fall onto the grinding plate for re grinding. When the materials in the airflow pass through the dynamic and static separators, under the action of the rotating rotor, the coarse powder falls onto the grinding plate for re grinding. The qualified fine powder is grinded together with the airflow, The product is collected in the powder collecting device. Materials containing water are dried in the process of contacting with hot gas to reach the required product moisture.