SBM Vertical Mill

Vertical Mill

    Advanced Quality and Advanced Technolodge, Energy efficient, Flexible, Reliable

Overview of Vertical Mill

LM

Vertical Mill

is a new mill of high efficiency and low consumption, studied by numbers of our engineers, for solving the difficultyof high energy consumption in mill industry. It adopts new grinding principle, new structure, strong bearing materials, and absorbing lots of technical essence of mill. Therefore the performance of LM

Vertical Mill

indicators is overtraditional mills greatly. Especially, it is very efficient for crushing high hardness and hardworking materials and it can work under bothdry and wet condition. LM

Vertical Mill

has these characteristics: small metal worn, little dust, simple and firm structure, and easy maintenance. It is a revolutionary technical changing in mill industry. It can bring higher economic benefit to our customers and it really fulfills the desire of industrial fields --- high efficiency and low consumption. It is invented for powder making in the new time.

Application of Vertical Mill

LM series

Vertical Mill

can be widely used in cement making, power,metallurgy, chemical and nonmetalliferous ore industries. It is used to grind lumpy, granular and powdery materials to the required size. Proven commercially, the LM series

Vertical Mill

is the premier roller mill for finish grinding of portland cement, slag and blended cements. With a 30-45% reduction in the energy requirements for cement grinding and 40-50% for slag as compared with traditional ball mill operations, the LM

Vertical Mill

can contribute significantly to your profitability and competitiveness.

LM Vertical Mill Main Features and Benefits

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 Protection.

Main Parts of Vertical Mill

LM

Vertical Mill

is made up of feeding part, discharging part, gyre part, grinding table, decelerator, roller and so on.

Working Principle of Vertical Mill

The motor drives the grinding table through decelerator. The materials fall down the center of grinding table from feed opening. At the same time, hot air comes into the mill from the air inlet. Due to the centrifugal force, materials move to the edge of the grinding table. The materials are pulverized by the roller when by pass of the groove on the grinding table. The crushed materials are brought up by vane high-speed airstream, the larger particles fall down to the grinding table for regrinding. When the materials in the airstream pass the separator on the top of the mill , the coarse powder fall down the grinding table for regrinding under the function of rotation rotor. The fine powder comes out with the airstream,and is gathered by the dust catcher. The materials content with moisture will be dried when they meet the hot airstream. Through adjusting the temperature of the hot airstream, it can meet different material’s requirement, and also through adjusting seperator, it can reach proper fineness of materials.

LM Vertical Mill Technical Data

Model		LM130K	LM150K	LM170K	LM190K	LM220K	LM240K
Turnplate diameter (mm)		1300	1500	1700	1900	2200	2400
Capacity (t/h)		10~30	13~40	18~57	23~72	36~114	41~128
Final product size	μm	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
Final product water percentage		≤1%	≤1%	≤1%	≤1%	≤1%	≤1%
Max. input size (mm)		38	40	42	45	50	55
Best water percentage of raw material		4%	4%	4%	4%	4%	4%
Drying needed if water percentage is more than		15%	15%	15%	15%	15%	15%
Input wind temperature (℃)		350	350	350	350	350	350
Output wind temperature (℃)		70~95	70~95	70~95	70~95	70~95	70~95
Main motor power (KW)		185~220	250~280	355~400	450~500	710~800	800~900
Overall dimension	L mm	3500	4200	4700	8500	10200	11700
	W mm	3400	3900	4500	5600	6700	7700
	H mm	5800	7100	8300	8800	10600	12200
Weight (t)		48	75	90	100	125	160

Model		LM130M	LM150M	LM170M	LM190M	LM220M	LM240M
Turnplate diameter (mm)		1300	1500	1700	1900	2200	2400
Capacity (t/h)		10~15	16~22	20~28	26~35	35~45	40~50
Coal powder fineness (R0.08)		15%	15%	15%	15%	15%	15%
Coal powder water percentage		1%	1%	1%	1%	1%	1%
Max. input size (mm)		38	40	42	45	50	55
Input material water percentage		15%	15%	15%	15%	15%	15%
Input wind temperature (℃)		350	350	350	350	350	350
Output wind temperature (℃)		75~95	75~95	75~95	75~95	75~95	75~95
Raw coal Hardgrove grindability index (HGI)		>55	>55	>55	>55	>55	>55
Main motor power (KW)		185	250	315	400	500	560
Overall dimension	L mm	3500	4200	4700	8500	10200	11700
	W mm	3400	3900	4500	5600	6700	7700
	H mm	5800	7100	8300	8800	10600	12200
Weight (t)		46	75	94	100	122	157