Water Injection System

Control the Temperature During Grinding

Grinding materials inside a ball mill converts a high percentage of the required electrical power into grinding heat which can cause problems with the material properties or further processing. A water injection system is the easiest and most effective way to control the temperature during grinding in the mill.

The movement of the grinding balls generates intense heat. This heat is absorbed by the material and so the material temperature rises steadily as it passes through the mill.

The product properties of some materials, such as cement, can change when becomeing too hot, for example due to gypsum dehydration. Design aspects that can limit a maximum mill temperature, such as lubrication, also come into play. The more grinding energy the production of the product requires the more likely water injection is important and necessary. More energy is needed when material has to be ground very finely, or the raw material is very difficult to grind.