How to deal with the slippage of the conveyor belt?

During the operation of the conveyor belt, it is inevitable that there will be some faults. The more common is slippage. There are many operations, such as insufficient friction between the roller and the conveyor belt, and the belt speed is lower than 95% of the roller speed. The reasons for the insufficient friction coefficient of the slipping roller surface are: the rubber covering on the surface of the roller is too worn, the belt is too wet or sticky with lubricating oil, and the surface of the belt is sticky with materials (easy to be swelled by water). Secondly, the conveyor belt is also easy to run in rainy days, mainly because the conveyor belt is easy to be stained with water, and the rollers and idlers of the conveyor are also relatively easy to get wet. Balanced, it is easy to lose balance and go off track.