The LM Series Vertical Grinding Mill (Vertical Roller Mill) is a high-efficiency grinding equipment developed by Liming Heavy Industry, widely used in cement, electric power, metallurgy, chemical, and non-metallic mineral industries. It integrates grinding, drying, classification, and conveying into a single system, offering advantages like low energy consumption, high throughput, and compact structure.
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Key Features of LM Vertical Roller Mill:
1. High Grinding Efficiency
– Uses a roller and grinding table design to crush and grind materials efficiently.
– Energy consumption is 20%-30% lower than traditional ball mills.
2. Drying Capability
– Can handle materials with moisture content up to 15%, reducing the need for a separate dryer.
3. Compact Structure & Small Footprint
– The vertical design saves space compared to horizontal ball mills.
4. Low Noise & Environmental Friendliness
– Closed system reduces dust pollution.
– Noise levels are lower than conventional mills.
5. Easy Maintenance & Long Service Life
– Wear-resistant rollers and table prolong operational life.
– Hydraulic system allows easy roller replacement without stopping the mill.
6. Flexible Adjustment of Fineness
– Product fineness can be adjusted between 80-600 mesh (R0.08-R0.045 mm) by modifying air flow and classifier speed.
7. Wide Range of Applications
– Suitable for grinding:
✓ Cement raw materials & clinker
✓ Coal (coal mill in thermal power plants)
✓ Slag (blast
rnace slag, steel slag)
✓ Limestone, calcite, barite, phosphate rock
Technical Parameters (Example Models)
| Model | Grinding Diameter (mm) | Capacity (t/h) | Motor Power (kW) | Fineness (μm) |
|————–|———————-|—————|—————–|————–|
| LM130K | 1300 | 10-30 | 160-200 | 45-80 |
| LM170K | 1700 | 20-50 | 315-400 | 45-80 |
| LM220K | 2200 | 40-80 | 500-630 | 45-80 |
| LM3700 | 3700