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In the grinding operation to improve the efficiency of grinding technology for improving mineral indicators are important. How can technology improve the grinding efficiency? From the following aspects:

First, the use of closed-circuit grinding process

Grinding process is reasonable once the grinding of mineral particles should be quickly isolated to a single mill in the row from them. In so doing, to avoid excessive wear on the other hand can make the full effect of grinding media in the thick of mineral particles, so that energy can do to maximize the useful work. However, within the existing mill to conduct particle size classification is very difficult, for the use of grading machines to mill or fine sieve grain size separation of minerals in the pass, coarse grinding machine and then return to grinding. Can be seen in the closed-circuit grinding, the grinding machine to mine ore for the new added back to the sand, so the material through the  ball mill more material through the mill rate would accelerate. Grinding time was short.

In the closed-circuit grinding, the coarse-grained repeatedly failed to force through the mill until the mill to pass up. Followed by closed-circuit grinding,because a lot of grit to enter, when the feed mill coarse grade levels increased. According to the principle of grinding dynamics. Then the maximum energy to do useful work, the grinding speed, grinding machine productivity. In addition, the amount of sand back to the existence of a new mill to eliminate the fluctuation of the ore particle size of the product. crusher

Second, different grinding machine Production proven, rod mill grinding to reduce over. Especially for brittle mineral more meaningful. Because of these grinding machines discharging faster,sinking to the bottom of a large pulp density of mineral particles easily discharged, rod mill but also because the long steel bar to do parallel grinding media,

so the phenomenon can be reduced through grinding. In addition, because these grinding machines shallow magma surface. Pulp grinding media for a small buffer. The grinding media can play a full role in crushing, grinding machines so these large production capacity.

The choice of the grading equipment, using the fine sieve with the mill closed, or the pre-classification has certain advantages. With a fine sieve for grading equipment to more strictly control grain mill products, so that can not be discharged in a coarse-grained, effectively avoid “running rough” phenomenon.

Followed by sieve screening efficiency is high, about 80 to 90% in the second spiral classifier with the rake classifier is usually only 40 to 60% of the classification efficiency. This is likely to cause the fine particles have been re-qualified into the ground, produced a smash phenomenon.