In the working process of vertical roller mill, it needs to adjust the feeding material amount to control the air volume and wind speed. Both of them have great effect on vertical roller mill final end products size and whether they are qualified. It needs clients to pay attention.
In vertical roller mill production line, it largely needs the wind. When the mill's roller takes the materials into powder size and enters into the vertical roller mill production system. These materials will be taken by wind and then they will be collected. The wind in vertical roller mill mostly is hot wind which is from the hot blast stove. For fineness of vertical roller mill end products, when the materials have large moisture, the grinded powder materials will be connected and causing feeding port blocking.
In the common production line, it will need the hot blast stove to play role. It does not need to install the hot blast stove when the grinding materials moisture is less than 6%. However, such material is less. Besides, when clients cannot guarantee the materials moisture, and avoid having the blocking phenomenon, it will need to install the hot blast stove.
The vertical roller mill air volume and wind speed have relationship with the hot blast stove and it has relationship with the exhaust fan in the working system. The exhaust fan in the system is use to get the hot wind in milling system. When the hot blast stove put wind to the working system, but it has small volume and it cannot make the hot wind move. So it cannot get the materials. The exhaust fan in the vertical roller mill is to speed up the movement of hot wind and take the materials into powder collector.
It also has relationship with the end products fineness. In the working system of vertical roller mill, the air volume and wind speed will affect the discharging products fineness. When the speed is fixed, the larger wind, it will produce fineness end products.