Specifications

Vertical coal mill for thermal power stations, adopting top technology domesic and abroad and based on many years' experiences.

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|DataModel		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