LM series vertical grinding mill consists of classifier, roller, grinding disc, pressurization device, deceleration machine, motor, main frame, etc. Separator is one high efficiency and power saving classifier device. Grinding disc, fixed at the output shaft of the decelerator, is the place that the materials are ground. Hydraulic device inject high-pressure oil to Pressure Device, then the Pressure Device can offer grinding pressure for rollers.
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Ingle impulse precipitator open-circuit: In this system, raw material are lifted up by elevator and conveyed to hopper passing through the iron remover. When the feeding capacity is set, closed belt feeder weights the material and feeds them to the mill. Ground by the mill, qualified products are collected by one case-type impulse dust catcher, this way, the whole system is simplified. Finally, screw conveyor and elevator convey the final products to Storage silo. Few materials, which are still not ground by mill, are to be transported to feeders.
- Advantages of Open-circuit
- 1. low energy consumption and high capacity
- 2. Less emission and low noise
- 3. large-scale and automation, achieving modernization management and production process
- 4. low investment cost and high output, bringing appreciable profit for investors.
Small occupation area Low investment cost
This product sets crushing, drying, grinding, classifying and transportation as a whole, and it has simple system and compact structure, it takes 50% occupation area of ball mill and can be installed in outdoor sites, reducing the investment cost greatly.
Low operation cost and long service life
High grinding efficiency: Rollers grind the material on the grinding plate directly, reducing 30% ~ 40% energy consumption compared to ball mill.
Low abrasion: Because the rollers do not rub the grinding plate directly and both of them adopt the finest material, the service life is extended and the abrasion is reduced.
Long service life: Both of the two sides of the roller sleeves can be used, the service life increase to twice than before.
High grinding efficiency
Adopting hydraulic system increase the pressure force, and it does improve the capacity and efficiency. Also, the limiting stoppers ensure that rollers just grinding the target material, proving grinding-ring from be abraded.
Excellent drying function
The inner hot wind can dry all the powders directly; this function not only helps investors save the investment cost of dryers and reduce the energy consumption. Different requirements of different moistures are easy to solved by adjusting the temperature of the hot wind.
Good final products quality
Due to the short residence time, materials are prevented from being re-ground, the particle sizes are easy to control and the chemical compositions are well kept. For there is few Fe attrition，it efficiently reduces the pollution when this machine is used to grind white or hyaline materials.
Easy to maintain
By controlling the hydraulic device and turning the lift arm, it is easy to replace the roller sleeves, grinding plates. In this way, both maintenance time and labor cost are saved.
Environmentally friendly
LM Series Vertical grinding mill is of little dust and noise, achieving Environmental Protection Request.
High classifying capacity
Both cage type classifier and Tapered rotor classifier can be used, it succeeds in satisfying different requirements of particle size.
LM VS Ball mill
Reduce infrastructure investment:
The construction area is 70% of ball mill, and the building space is 50-60% of ball mill.
Smaller energy consumption:
LM Series Vertical grinding mill can reduce energy consumption 30% to 40% compared to ball mill.
Low metal loss:
LM series vertical mill cannot only reduce the metal loss up to 95%, but also reduce the influence of metal impurities on whiteness and purity of the finished product.
Large drying capacity:
LM can dry 12-15% of the moisture of material; while the dry ball mill can only drying 3-4% of the moisture of material.
A high degree of homogenization:
LM products have no over-crushed phenomenon. But ball mill has and product size is quite uneven.
More environmentally friendly:
LM is of little dust and noise, which is about 80dB or so, the noise of ball mill is higher 20 ~ 30dB.
LM VS Suspend Roller Mill
Large capacity:
LM series vertical grinding mill is significant higher than suspend roller mill.
Longer service life:
LM series vertical grinding mill and its wear parts have longer life
Thin oil station lubrication:
Both of them adopt external thin oil station to lubricate, and other periodic lubrication projects can be completed outside the grinding machine
Convenient to adjust:
The product fineness, roller pressure and other adjustment items of LM series vertical grinding mill is more convenient.
More stable:
LM series vertical grinding mill is working more stable, with lower failure rate.
LMM series vertical grinding mill
Customer:
Manager of one large-scale steel mill in China
Application:
grinding coal for offering blast furnace fuel
Capacity:
25~30T/H, drying the material when grinding them
Operation:
Qualified coal pulverized coal are delivered to blast furnaces. This machine can continues work for 24 hours and we just need to maintain it every six months, ensuring that our daily works go well.
LMN series vertical grinding mill
Customer:
The director of one barite powder processing company
Application:
To produce API grade barite powder
Capacity:
50~60T/H
Operation:
This machine is really steady, and the wear parts are quite usable, during the past 12 months, we never replace them.
