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Several problems should be paid attention to when operating

Date:2019-06-04 12:00     writer:cement editor     Views:

  1. How to properly operate the ball mill is an important issue in the beneficiation process.

At present, mining developments is relatively hot, and skilled workers are relatively scarce. Many of them have not been formally trained and have been employed, which has caused huge economic losses to mining enterprises. In addition, the operation of grinding is a practical experience in production, and many engineers and technicians are not very clear, and the technical experience in this area cannot be found in various books. To this end, according to the author’s years of experience in production and commissioning guidance and the combination of theoretical and technical, the operation f the grinding machine is elaborated.

  2. How to effectively improve the grinding fineness is one of the important links in the beneficiation operation, because the cost of grinding operation is a higher part of the ore dressing plant.

How to effectively and reasonably control the grinding fineness is to directly reduce the ore dressing cost. To improve the economic factors of the plant selection. Grinding fineness is one of the many factors affecting the beneficiation index. The size of grinding fineness directly affects the level of concentrate and the recovery rate of the product. Therefore, the technical operation of the ball miller is important.

  First, we must fully understand the factors affecting the fineness of grinding. In summary, the factors affecting the fineness of grinding are: raw ore hardness, crushing particle size, grid sieve hole, ore amount, ball mill model, number of steel balls, steel ball size ratio, ball mill inner wear, ball mill speed, grading machine speed, classifier spindle lifting height, classifier blade wear, classifier overflow weir, leveling machine lower opening height, classifier lower opening size, classifier upper opening height, return sand flow size, hall mill the size of the water supply, the size of the water at the discharge port of the ball mill etc.

  In the case of a certain amount of ore, the size of the flushing at the discharge port and the size of the ore directly affect the fineness of the grinding. In many domestic mines, the grinding automation is not realized. The amount of water is directly carried out by the ball mill. Manual adjustment, because the water flow in these two places is large, it is difficult to see the increase and decrease, so careful observation and fine adjustment must be required. First, we understand that the ball mill water supply increases, the grinding concentration becomes thinner, and the grinding fineness becomes thicker. On the contrary, the ball mill water supply decreases, the grinding concentration becomes larger, and the grinding fineness becomes finer. The flushing water at the discharge port of the ball mill becomes larger, the overflow becomes thinner, and the overflow fineness becomes finer. On the contrary, the flushing water at the discharge port of the ball mill becomes smaller, the overflow becomes thicker, and the overflow becomes thicker. Therefore, under other conditions including the same amount of ore, to improve the fineness of grinding, the ball mill water supply can be reduced, and the flushing water at the ball mill discharge port is increased. It is best to adjust these two conditions at the adjustment of the fineness of the grinding.

  3. In addition to the above-mentioned various aspects, the fineness of grinding is also related to the proportion of steel balls added.

How to add steel balls according to the size of the steel ball depends on the diameter of the ball mill, the hardness of the ore, the size of the ore of the scoring mill, the hardness of the steel ball, the speed of the ball mill, and other factors.

  When the model of the ball mil is determined, the speed of the ball mill is also fixed. The hardness of the ore is measurable. The ore particle size of the scoring mill is determined by changing the size of the grid.

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