Vertical coal mill for thermal power stations, adopting top technology domesic and abroad and based on many years' experiences.
Vertical coal mill for thermal power stations with High efficiency
LM Series vertical coal mill
LM-series vertical mill is one advanced mill, adopting top technology domesic and abroad, and based on many years' mill experiences. It can crush, dry, grind, and classify the materials.
LM series vertical milling machine can be widely used in such industries as cement, power, metallurgy, chemical industry, non-metallic mineral. It is used to grind granular and powdered materials into powder with required fineness.
Main Advanced Features of LM Series vertical:
1. Low Investment Cost
This mill itself can crush, dry, grinding, classifying, so the system is simple, and occupation area is about 50% of ball mill system. In addition, it can be installed outside, so it will reduce a large number of investment costs.
2. Low Operation Cost
High efficiency: roller compacted materials directly onto the grinding disc, so power consumption is low. Compared with ball mill, it saves energy consumption by 30% ~ 40%.
Less wear and tear: As the roller is not in direct contact with the disc, and material of the roller and liner is high quality, so life lime is long.
3. High Drying Ability
As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, it can meet requirements with diffirent humidity.
4. Simple and reliable operation
It is equipped with automatic control systems, so remote control makes it easy to operate.
It is equipmented with one device,which prevents the roller from contacting with the liner directly, and avoids the destructive impact and severe vibration.
5. the stability of product quality
As the material stays in the mill for a short time, it is easy to detect and control the product particle size and chemical composition, to reduce duplication of milling, stable product quality.
6. Maintenance convenience
By reparinging fuel tank, rotating the arm, it is fast to replace the roller sleeve, and liner, and reduce the downtime loss.
7. Environmental protection
specifications of vertical coal mill for thermal power stations:
| Contents|Data\Model | LM130M | LM150M | LM170M | LM190M | LM220M | LM240M | |
| Disc Dia. (mm) | 1300 | 1500 | 1700 | 1900 | 2200 | 2400 | |
| Capacity (t/h) | 10~15 | 16~22 | 20~28 | 26~35 | 35~45 | 40~50 | |
| fineness (R0.08) | <15% | <15% | <15% | <15% | <15% | <15% | |
| Coal powder moisture | <1% | <1% | <1% | <1% | <1% | <1% | |
| Max.input size (mm) | <38 | <40 | <42 | <45 | <50 | <55 | |
| input moistrure | <15% | <15% | <15% | <15% | <15% | <15% | |
| Inlet air temperature () | <350 | <350 | <350 | <350 | <350 | <350 | |
| Outlet air temperature () | 75~95 | 75~95 | 75~95 | 75~95 | 75~95 | 75~95 | |
| Hardgrove index of raw coal (HGI) | >55 | >55 | >55 | >55 | >55 | >55 | |
| Main mill power (KW) | 185 | 250 | 315 | 400 | 500 | 560 | |
| Dimension | Lmm | 3500 | 4200 | 4700 | 8500 | 10200 | 11700 |
| Wmm | 3400 | 3900 | 4500 | 5600 | 6700 | 7700 | |
| H mm | 5800 | 7100 | 8300 | 8800 | 10600 | 12200 | |
| Weight (t) | 46 | 75 | 94 | 100 | 122 | 157 | |
LM Series vertical coal mill for thermal power stations
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