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Matters needing attention when loading steel balls in ball mills

TIMES:2021-05-12    

The size of the steel balls loaded in the dressing plant must be determined according to the physical and mechanical properties of the ore and the particle size of the ore. It must not be added at will. If the size of the added steel balls is not appropriate, it will seriously affect the grinding efficiency. to the two situations.

When the particle size or hardness of the material to be processed is large, and the proportion of large balls added is small, the grinding product will run rough, and the fineness requirement will not be met, and the processing capacity will be limited, which will affect the grinding efficiency.

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When dealing with materials with small ore particle size and low ore hardness, if the proportion of pellets added is small, the product strength will be coarser. At this time, it is necessary to appropriately add small balls to increase the proportion of small balls to adapt to the nature of the ore to be processed, so as to obtain better product fineness.

It can be known from the above two situations that the balls for the ball mill must be loaded in strict accordance with the proportion to prevent the proportion from being out of balance.

After knowing that the steel ball size of the ball mill should be loaded according to the proportion, we also need to know how to determine the loading ratio of the steel ball size.

When dealing with ore with large hardness and coarse particle size, it needs to have a larger impact force, and it is necessary to load steel balls with a larger size; when the ore is soft and the ore particle size is smaller, and the product particle size is required to be finer, it should be ground by grinding. Mainly, smaller steel balls can be loaded.

Ball mills at the production site of the dressing plant are generally loaded with steel balls of various ball diameters, and the materials composed of ore particles of different sizes are processed according to a certain proportion. Theoretically speaking, only by ensuring that the various balls have a certain proportion can they be adapted to the particle size composition of the material to be ground, so that a good grinding effect can be achieved.

In a word, the ratio of steel balls in a ball mill has always been a relatively complicated technical issue. Each dressing plant generally finds a reasonable ratio of balls after long-term practice summary according to the actual situation of its own ore to ensure the grinding efficiency.

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