Analysis of ball mill liner failure is basically divided into three forms：
Fracture failure: Lining Board in the production process or the use of the formation of cracks, lining board fracture to the operation and maintenance of a great deal of trouble. When the mill rotates, the liner is chiseled by the impact force of the grinding body and the material, the grinding body is hammered or rolled when it falls, and the material sharp angle cuts the liner, when the liner strength can not withstand the high stress produced by Chisel Impact and fracture. This is abnormal failure, in the production and use should be prevented.
Second, wear failure: wear failure is the most important form of liner failure. Generally due to normal wear and tear and failure, it is the largest consumption of metal materials. The wear process of the mill liner is very complex, which is affected by various factors in the system. The wear mechanism is related to the whole grinding characteristics. For the wet mill, the liner is also subject to water erosion, wet mill liner wear faster than the dry mill liner. Under the working condition, the liner of ball mill will be affected by the impact, rolling and sliding of the abrasive body and material, and will be affected by the change of temperature.
Deformation failure: this kind of high manganese steel lining plate is easy to appear under the working conditions, high manganese steel lining plate in the abrasive body and material under the impact of high stress chisel plastic rheology, lining plate thickness size reduction, with the increase of the peripheral dimension, the gap between the liner plates is not enough to fill, which causes the adjacent liner plates to bump and protrude in the direction of leaving the cylinder, which causes the fastening bolts to break and causes the liner plates to fall off One of the reasons is that the yield limit of high manganese steel does not meet the requirement of“National Standard”. Another reason is that the clinker temperature in cement mill is above 200 ° C and can not be controlled below the required 140 ° C, the strength and yield limit of high manganese steel are reduced because of bad working condition, which is very normal failure. Deformation failure did not occur in wet mills and in the use of high chromium cast iron and alloy steel liners.
The ball mill produced by Shenyang Shanyou heavy industry equipment optimizes the production process of the traditional ball mill, improves the working efficiency of the equipment, greatly reduces the power consumption, and is economical and environmentally friendly. Lower the power of the original motor than the ordinary ball mill, reduce the installed capacity so as to improve working efficiency and reduce losses.