Product Description

Final powder size is adjustable in the range of ***0 ***5 meshes.
Vertical grinding mill is widely used for superfine grinding of non-metal ores, such as calcite, marble, limestone,coarse whiting, talc, kaolin, barite, dolomite, potassium feldspar, manganese ore etc.

Working Principle

When the mill starts to work, the main motor rotates the millstone through reduction box and the air gets into the mill through air intake. The material fall on the centre of millstone through screw feeder and move from centre to the edge of the millstone under the effect of centrifugal force. The materials are grinded by the rollers while moving across the grinding zone. The coarse particles are crushed and grinded directly whereas smaller particles form material bed in which mutual grinding takes place.

The grinded material keep moving to the edge of the millstone till they are swept away by strong air flow and the big pieces fall down to the mill stone for regrinding. The materials in the airflow passes through the impellor on the classifier above. The coarse powder goes back to the millstone again whereas fine powder goes out of mill and collected by cyclone collector. These collected powder is the final product of grinding mill.

The sundries for instance iron pieces mixed in the material moves to the edge of the millstone with the materials and falls down to the bottom part of the mill as they are heavy and cant be blown up. Then these sundries are scraped to the waste discharge opening and discharged out of mill.

The fineness of final product can be controlled by adjusting the rotating speed of the impellor in the classifier. The pressure in the rollers can be changed by adjusting the pressure of the hydraulic system to suit material of different hardness.

Performance Advantages

1. Low investment cost
A single GLM series mill can be used for crushing, grinding, classifying, drying and transporting of powder. Its occupation area is about *0% of the ball mill. In addition, it can also be installed outside which reduces investment cost substantially.

2. Advanced powder-separating technology
The theory of multi-round separation with frequency conversion impellor is adopted. The alloy steel blade of impellor are *0% more durable than conventional impellor. The fineness of final product can be adjusted at certain range without secondary classifying.

3. Intelligent operating system
The main mill, blower and the other parts of equipment adopt the frequency conversion control. Highly automated system design, touch screen and PLC control display all the production data clearly.

4. Simple and secure operation.
It is equipped with automatic control systems to remote control accurately. This equipment can be operated by one person safely and easily.

5. High efficiency of grinding
The GLM series mill equipped with specially made roller shell, grinding curve for superfine grinding easily forms materials layer than the normal vertical mill and achieves the expected fineness.

6. Reducing energy consumption
The GLM series mill grinds and classifies the materials which can save *0 to *0 percent energy consumption compared with normal mill.

7. Separate lubrication station
There is no leakage of much oil from lubrication system and cooling roller bearing as the roller lubrication adopts separate lubrication station and a single roller loop adopts double pump.

8. The stability of product quality
The mill adopts the theory of material layers grinding which reduces residence time of material and decreases duplication grinding. It is also easy to detect, control product particle size, and chemical composition which helps to stabilize product quality.

9. High accuracy and purity of the product
The mill can produce the powder of **5 ~ ***0 mesh with high cutting precision, uniform distribution and higher whiteness and neatness. This mill is perfect for grinding white and transparent materials.

*0.Maintenance convenience.
The roller and the millstone can be renovated fast and easily, thus reduces downtime loss.
*1.Less wearing parts
The mill is equipped with a device to prevent roller from coming contact with millstone directly, which avoids destructive impact and severe vibration. The roller and millstone are of high quality and lasts long.

*2.Environmental friendly.
It is highly environment friendly and is sealed properly and works with small vibration, low noise. There is no dust emission from the equipment and meets the environment protection requirement.

For more information, Pls feel free to contact me.
Maranda 
*************9 （whatsapp）
Dashiqiao Hu Zhuang Machinery Factory 
Yingkou city Liaoning province,China
Skype : marandagao***3