Vertical Roller Mill
The earliest vertical roller mill is manufactured by the German. Because it sets crushing, grinding, drying with a suit, its functions are very powerful. Then it is introduced into China.
Structure of vertical roller mill is unique, it uses grinding roller directly rolling action on grinding disc to grind material.At the same time, according to technological requirements, it can conduct grinding pressure adjustment.
The material after grinding to achieve the appropriate particle size was selected as a finished product. The system can simultaneously satisfy the open circuit and closed circuit to grind, and there is no much asking for the grinding production.
Vertical roller mill working principle
Vertical roller mill is based on the working principle of a Raymond mill. But it imitates the performance of high pressure suspension mill in the process of research and development. At present, the domestic use of large grinding machine is more vertical mill. The milling machine can realize the precision grinding, and large production capacity. It is the preferred product at home and abroad. Vertical mill technology promotes technological progress in the world of crushing and milling industry, and plays an important role in saving energy and reducing consumption. Because the economy of the vertical mill is very good, it will make a great contribution to the development of various industries.
Four Improvements of Vertical Roller Mill Technology
As the vertical roller mill is the important machine in modern grinding industry. To promote grinding mill all around development, it needs to improve the vertical roller mill technology to ensure the smoothly working in the daily life. Here will provide four improvements of vertical mill machine.
Choose the cydariform feeding machine and make the vertical roller mill have high working efficiency. The traditional vertical milling machine is feeding materials through the spoon head joint device. This feeding method cannot meet clients’ practical production needs and machine’s working efficiency. It needs to choose the suitable inner structure to have some improvement to promote the adjustment of installation angle, distance between classifier and grinding mill. It can make the grinding mill work more efficient and improve the working efficiency.
Control the classifier vane width to improve the classifying efficiency. To meet the needs of production output and fineness, it needs to control the distance of classifier vane. It needs to choose the vane which can get most materials in the same condition. To adjust the classifier speed and air volume, they have relationship with the classifying efficient and the end products. Adjust the classifier parameter will ensure the machine working in high efficient state.
Control the vertical roller mill moisture and adjust the materials circulation. In the working process, it needs to put water on the materials and the grinding roller will control the water volume and it can guarantee the vertical milling machine output. It also can guarantee the machine normally operation. In this process, it also needs to improve the grinding technology and ensure the output.
Control vertical roller mill assembly and the loading capacity. The loading capacity can guarantee the machine’s filling coefficient in stable, reasonable and realize state and it can make the machine into effective stage. This can ensure the vertical milling machine structure and grinding mode. It can make the machine work more smoothly to control the loading capacity and the relative power.
|Material Size（mm）||<10||< 10||<10|
|Main Motor Power（KW）||250||315||355|
|Classifier Motor Power||15 KWx5||15 KWx7||15 KWx7|