coal mill in power plant-LM series Vertical mill of Liming Heavy Industry

coal mill in power plant-LM series Vertical mill of Liming Heavy Industry

Coal reserves in the world distribution of the most extensive fuel resources . According to the 1992 “published by the World Energy Council World Energy Resources Survey 1990 , 76 countries and regions around the world coal resources, the world coal recoverable reserves of 1,039,180 megatons ( Mt) , of which 90% followed by focus on the former Soviet Union U.S., China, Australia, Germany, India , South Africa and Poland in eight countries.

Coal mining used up to the mill, in the most suitable for a variety of mill the coal industry is a vertical mill, Henan kefid Science & Technology Co., Ltd. through the analysis of Germany’s advanced technology, developed its own LMseries of vertical milling machine, with a small footprint, simple process, high grinding efficiency, low energy consumption, low noise, large drying capacity and easy adjustment of product fineness, no dust pollution and easy maintenance and reliable operationand other characteristics, has won the trust of our customers.

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.

Vertical mill’s Features:

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
⑴ 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%.
⑵ 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
⑴ It is equipped with automatic control systems, so remote control makes it easy to operate.
⑵ 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
It is with small vibration, low noise, and the overall sealing. The system works under negative pressure, so there is no dust going out. It meets the requirements of the state Environmental

Ore Mill

 

Contents|Data\Model LM130K LM150K LM170K LM190K LM220K LM240K
Disc Dia. (mm) 1300 1500 1700 1900 2200 2400
Capacity (t/h) 10~30 13~40 18~57 23~72 36~114 41~128
Output fineness micron 170~45 170~45 170~45 170~45 170~45 170~45
mesh 80~325 80~325 80~325 80~325 80~325 80~325
Product moisture ≤1% ≤1% ≤1% ≤1% ≤1% ≤1%
Max.input size (mm) <38 <40 <42 <45 <50 <55
Best input moistrure <4% <4% <4% <4% <4% <4%
input moistrure(drying required) <15% <15% <15% <15% <15% <15%
Inlet air temperature (℃) <350 <350 <350 <350 <350 <350
Outlet air temperature (℃) 70~95 70~95 70~95 70~95 70~95 70~95
Main mill power (KW) 185~220 250~280 355~400 450~500 710~800 800~900
Dimension Lmm 3500 4200 4700 8500 10200 11700
Wmm 3400 3900 4500 5600 6700 7700
Gmm 5800 7100 8300 8800 10600 12200
Weight (t) 48 75 90 100 125 160

 

Notes:
1. Material should be with hardness less than 7 in Mohs.
2. Hot air is only necessary if outlet moisture is required to be less than inlet moisture.
3.When grinding mateiral that is difficult to grind, please use the largest power.

Coal Mill

 

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

 

Notice: Any change of LM Series Vertical Mill technical data shall not be advised additionally.