Improve the service life of ball mill liner by changing its shape

Ball mill liner, also known as "blind plate", often mention liner, especially large ball mill grinding liner, all feel that this is a troublesome thing, in recent years, whether from the structure or material, composition, process design has made great progress, its life is more than the traditional high manganese steel increased by 1 times or even several times. Only to solve the early wear of the ball mill grinding liner, in order to improve the service life of the ball mill grinding liner. The following describes the specific method from changing the shape of the ball mill liner.

1. Partly thickening: that is, serious wear area does not affect the grinding efficiency under the premise of thickening. There are three kinds of thickening methods: flat shape, arc shape and triangle. One of the arc-shaped thick casting will be some trouble, mainly to bring different sizes of core workload increased, but the best results. Although the overall life expectancy has increased, but the unit wear is not reduced, and sometimes slightly increased, scrap rate is still high.

2. Set up the ribs: Set up the appropriate ribs in the grinding head liner, control the grinding body and grinding head liner relative sliding, reducing the wear and tear, but also help to enhance the grinding and grading. Large ribs may be the designer in order to solve the mill speed is too low, the ball is too weak and deliberately set.

3. Set the radial groove: See the earliest radial groove in the Danish Smith φ2.6 × 13m mill , in fact, this is consistent with the convex edge liner, but one is a concave one is convex.

4. Reasonable sub-circle: that sub-circle design reduce the size of the grinding wheel liner, which circle first bad change which circle, the most serious wear area designed into a simple circle, can significantly reduce the scrap rate. At the same time due to reduce the size of grinding head liner, reducing the toughness of the liner material requirements, which choose a higher hardness wear-resistant materials to create favorable conditions.

Above these types of measures have a clear effect, specific circumstances should also take into account their respective conditions of service conditions of ball mill liner. If you have conditions, you can be used when the "combination of boxing", such as: partly thickening, set the ribs and lap synchronized use, so the effect will be better.