Basic knowledge about the ball mill I believe everyone knows how to reduce the temperature inside the ball mill, you know?
Ball mills are important equipment for fine crushing and superfine grinding. When it is in operation, the material is sent to the grinding chamber by centrifugal force, and then the material in the steel ball and the grinding chamber is hit and ground to achieve the purpose of pulverizing and finely breaking the material. Therefore, the increase in the temperature of the ball mill is mainly due to the influence of the abrasive mineral, the mechanical friction energy of the abrasive material and the energy released when the material is broken, or may be caused by the excessive temperature of the abrasive material. The material. In short, when the internal temperature of the ball mill is too high, it is necessary to find a way to reduce it so as not to affect normal production. See the three basic cooling methods below:
1. Strengthen the internal ventilation of the ball mill
This should be a simple method of calculating the cooling air volume of the mill based on the heat balance of the ball mill, but if the air volume is too large, the grinding effect will be economically deteriorated.
2, increase the water spray device
Water can be sprayed from the grinding head or the grinding tail. Water can be sprayed from the feed end of the mill only when the temperature of the incoming abrasive is above 100 degrees, or water can be sprayed downstream.
3, ball mill grinding water spray cooling
The cooling in the mill is based on the cooling of the cold water outside the mill. Water is injected into the mill using a compressed air process that utilizes not only the sensible heat of the water but also the latent heat of the water during evaporation. Take away the heat inside the mill, but it should be noted that the amount of water spray is about 1~1.5% of the cement, generally not more than 2%, otherwise the water can not completely evaporate, the synthetic water will make the water sia, the strength performance will change.