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First, the rotational speed adjustment of the slurry pump of a wet ball mill:
After the pressure test at the swirl station last night during commissioning, replace the pulley of the slurry pump again.
Second, the ball mill anti-blocking, leak-proof basic knowledge:
To prevent blocking, we first need to check the size of the material and the amount of material to be transported. In case of overloaded delivery, it will also cause blockage of the import. For leakage prevention, we first check whether the inlet seal has worn out, and leakage will occur after a certain period of time. We should replace the sealing packing immediately. In addition, we have designed discharge funnels and pipes at the entrance to discharge the leaked slurry to the trench in time.
Third, adjust the size of the grinding material by the ball ratio of the ball mill:
Maintain reasonable ball load and ball ratio. Limestone is impacted by a steel ball, squeezed and milled into a slurry. If the ball load is insufficient, fineness will be difficult to meet. During operation, the ball load can be monitored by monitoring the main motor current of the ball mill. If it is found that the current drops significantly, it is necessary to replenish the ball in time. The ball quality ratio of the ball mill should be designed according to the design when it is put into operation for the first time. Practice shows that steel ball replenishment generally only supplements the model with the largest diameter, because different diameters of steel balls can be included in other models.
Fourth, the impact of the size of imported materials on the ball mill and the outlet abrasive:
Control the size of limestone in the ball mill so that it is in the design range. Typical wet ball mill feed particle size is 80% particles less than 12mm. Adjust the inlet of the ball mill inlet. In order to reduce the power consumption, the ball mill should always be operated under rated conditions. However, sometimes due to various reasons, if the ball is not replenished in time, the feeding amount should be properly reduced according to the current reduction of the main motor of the ball mill in order to ensure the particle size of the slurry. qualified.
Fourth, adjust the size of the grinding material by the ball ratio of the ball mill:
Maintain reasonable ball load and ball ratio. Limestone is impacted by a steel ball, squeezed and milled into a slurry. If the ball load is insufficient, fineness will be difficult to meet. During operation, the ball load can be monitored by monitoring the main motor current of the ball mill. If it is found that the current drops significantly, it is necessary to replenish the ball in time. The ball quality ratio of the ball mill should be designed according to the design when it is put into operation for the first time. Practice tells us that steel ball replenishment generally only replenish the model with the largest diameter, because different diameters of steel balls after wear can be included in other models. Balls can be added after the ball has run for a period of time, usually after 3 months of operation.
In use, ball mills should be regularly maintained, and the condition of the ball mill must be monitored in real time in order to extend the life of the ball mill and to save cost.
The wet ball mill is the key equipment for secondary crushing after the material is coarsely crushed. It is composed of main parts such as feeding part, discharging part, transmission part and turning part. Ball mills are widely used in cement, new construction materials, refractories, black and non-ferrous metal beneficiation and ceramics, etc., and dry or wet grinding of various ores and other abrasive materials. If the ball mill is used for a long time, some failures will inevitably occur. For example: