Industry Reports

Design advantages of GRMR limestone vertical grinding mills

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  • Sep 30, 2021  UTC+8
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  • Tags: limestone grinding mill limestone vertical mill limestone vertical grinding mill
Limestone is a ubiquitous mineral resource in nature. It is a widely used non-metallic mineral material. After limestone is ground into fine powder, it is widely used in modern industries such as cement, environmental desulfurization, glass, papermaking, paint, coatings, and feed. With the rapid advancement of the industrialization process and the strict constraints of environmental policies, desulfurization facilities have become a must for coal-fired projects. Limestone is widely used as a desulfurizer due to its inherent chemical properties. 
Advantages of GRMR limestone vertical mill manufactured by Xinxiang Great Wall Machinery (CHAENG): grinding high-fine limestone powder, the system runs efficiently and stably and saves external heat sources.
Compared with other limestone grinding systems, the vertical mill system can reduce power consumption by 20%-40%. The single-machine production capacity can be increased by 10 times compared with the Raymond mill, which can well meet the needs of large-scale industrial production of high-fine limestone powder. 
Projects Vertical Roller Mill Ball Mill Raymond Mill
Model GRMS34.3 φ4.0×11m HGM4528
Finished product 325 mesh, D90 325 mesh, D90 325 mesh, D90
Capacity 70t/h 35t/h 7 t/h
Power consumption 32kwh/t 55kwh/t 50kwh/t
Feeding size 95%≤30mm Max.40mm ≤25mm ≤10mm
Main motor power 1400kw 1500kw 132kw
Total power 2930kw 2200kw 400kw

vertical roller mill for grinding limestone

1. Design plan requirements: The vertical roller mill uses the material bed grinding principle to grind materials, and has the advantages of large single machine production capacity, simple process flow, high grinding efficiency, energy saving and environmental protection. 
2. Design of grinding table speed and grinding roller size
The material falling in the center of the grinding table is moved to the edge of the grinding stable by centrifugal force under the action of the rotation of the grinding table.
3. Adjust the wind speed control of different parts
4. Optimize the structure of the separator