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.
Ball mill liner, also known as "blindplate", often mention liner, especially large ball mill grinding liner,all feel that this is a troublesome thing, in recent years, whether from thestructure or material, composition, process design has made great progress, its life is more than the traditional high manganese steel increased by 1 times oreven several times. Only to solve the early wear of the ball mill grindingliner, 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 ballmill liner.
1. Partly thickening: that is, serious weararea does not affect the grinding efficiency under the premise of thickening.There are three kinds of thickening methods: flat shape, arc shape andtriangle. One of the arc-shaped thick casting will be some trouble, mainly tobring different sizes of core workload increased, but the best results.Although the overall life expectancy has increased, but the unit wear is notreduced, and sometimes slightly increased, scrap rate is still high.
2. Set up the ribs: Set up the appropriateribs in the grinding head liner, control the grinding body and grinding headliner relative sliding, reducing the wear and tear, but also help to enhancethe grinding and grading. Large ribs may be the designer in order to solve themill speed is too low, the ball is too weak and deliberately set.
3. Set the radial groove: See the earliestradial groove in the Danish Smith φ2.6 × 13m mill , in fact, this is consistentwith the convex edge liner, but one is a concave one is convex.
4. Reasonable sub-circle: that sub-circledesign reduce the size of the grinding wheel liner, which circle first badchange 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 thesize of grinding head liner, reducing the toughness of the liner materialrequirements, which choose a higher hardness wear-resistant materials to createfavorable conditions.
Above these types of measures have a cleareffect, specific circumstances should also take into account their respectiveconditions of service conditions. Conditions can be used when the"combination of boxing", such as: partly thickening, set the ribs andlap synchronized use, so the effect will be better.