Ball mill is the key grinding equipment that the material is crushed. It is widely used in cement industry, silicate products industry, new building materials industry, refractories industry, fertilizers industry, black and non-ferrous metal processing industry, glass ceramics industry and other production industries, and all kinds of ores and other abrasive materials can be grinded by dry or wet grinding. When the ball mill is in the work, because there is a hollow journal on the end cap, the material are poured into the cylinder from the left of the hollow shaft, and gradually spread to the right. When the movement of the material from left to right, steel balls that the rotating cylinder carry them to a certain height and they drop down crush the material, and part of the balls in the cylinder into a diarrhea state has a grinding effect on the material, and the whole process of moving is also the process of grinding the material. In the grinding process, it is very important that how to control the ball mill temperature. ZK is a professional ball mill manufacturer in China, if you have any question, please contact us.

First, the reasons for the high temperature inside the ball mill

1. The impact and friction of a large number of grinding media between the grinding media, and grinding media between the liner, resulting in a lot of heat, so that the temperature rise.

2. The grinding material temperature is too high, so that the temperature increases.

3. The ventilation of ball mill is not good, or the ventilation quantity is small due to technological conditions restrict, which can not effectively drain away the heat of ball mill.

4. As the large-scale mill, the cylinder surface heat dissipation ratio becomes smaller, which can not effectively drain away heat, thus making the temperature increase.

5. High seasonal temperature, resulting in high temperature materials into the mill and slow the system heat dissipation, the final formation of the phenomenon of high temperature inside the ball mill.

Second, how to control ball mill temperature

In view of the above reasons for the temperature rise, the following effective measures can be taken to control the ball mill temperature.

1Lower the temperature of the material into the mill

Strengthen the material management, avoid high temperature material into the grinding head warehouse. Spray water cooling machine to reduce the material temperature. Spray water into the belt of grinding material.

2Add grinding aid

If it is appropriate that ball mill grinding temperature control, it will help improve the output, while the increase in production and help to reduce the temperature. In view of the high temperature of the grinding system, causing the phenomenon of over-grinding in the mill is serious and the efficiency of the separator is lowered. Add the grinding aid, to reduce the degree of adhesion in the mill, thus improve the efficiency of the classifier, and the temperature can be reduced to a certain extent.

3Strengthen the mill ventilation

Strengthen the ball mill ventilation, can take away part of the heat, but according to the mill heat balance calculation, mill ventilation take heat away from the mill is usually only 20% of the total heat. But the ventilation within the mill is constraint limited by the resistance, lock the wind, air leakage of the system and other constraints, but also by product fineness constraints, therefore, it is a certain limit that strengthen the mill ventilation to reduce the temperature of discharging grinding material.