Gravity separation middling coal separation technology
A sorting and process technology, which is applied in solid separation, wet separation, grain processing, etc., can solve problems such as equipment sorting efficiency that does not take into account the problem of over-grinding, so as to improve equipment sorting efficiency and increase clean coal production. The effect of reducing the over-crushing phenomenon
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[0012] Below in conjunction with accompanying drawing, one embodiment of the present invention is further described:
[0013] like figure 1 As shown, the re-selected coal is fed into the rough grinding equipment; the rough grinding equipment is an autogenous mill or a rod mill. The coarsely ground product is fed into the sieving equipment for primary classification to obtain the primary product on the sieve and the primary product under the sieve; the product on the primary sieve is fed into the heavy medium cyclone for sorting; the product under the primary sieve is fed into the sieve The equipment performs secondary classification to obtain the product on the secondary screen and the product under the secondary screen; the product on the secondary screen is then fed into the fine grinding equipment for fine grinding; the fine grinding equipment is a stirring mill or a ball mill. The finely ground product and the product under the secondary screen are fed into the pulping eq...
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