Energy saving trench cleading

The utility model is a ball mill groove scaleboard device, which is characterized in the grooves with the radian of 90 to 120 degrees in the inner sides of scaleboard. Experiments and practices prove that the groove with the radian of 120 DEG can effectively enlarge the contact area of the grinding body and scaleboard and increase powdering capacity in particular. Still, the effective combination of groove structure can strengthen ball driving capacity of the scaleboard, improve potential energy of the grinding body and upgrade crashing ability. The utility model has the following advantages of high output, low energy consumption, low consumption of the grinding body and scaleboard, enhancing product quality and decreasing noise.