Torbanite washbox, coal separation system and coal separation method thereof

Abstract

The invention discloses a coal block jigger, a coal selection system and a coal selection method, which belongs to coal jigging selection field and is more particularly suitable for select coal blocks. The coal block jigger of the invention is formed by multiplying the inclined angle of a filter board of the existing multi-section jigger and changing a overflow spillway into a clean coal outlet passage; the coal selection system of the coal block jigger comprises the coal block jig, a rock refuse bucket elevator, a middling bucket elevator, a clean coal bucket elevator, a recycling water bucket, a recycling water pump, a water supply device and so on; and the coal selection of the coal block jigger can one-time select rock refuse, middlings, clean coal and a plurality of other products, and the water supply amount in selection is small. By adopting the invention to select coal blocks, processing amount can be increased, a great deal of water can be saved, washing and cleaning cost can be lowered, system steps can be simplified and system overall investment is reduced, thus achieving the effect that can not be achieved by the existing multi-section jigger. The invention is a brand new coal blocks selection jigger, a coal selection system and a coal selection method, which can be used for selecting steam coal and can also substitute dense medium vertical wheelers and inclined wheelers for coal block selection.

Description

Technical field [0001] The invention relates to a coal preparation equipment, a coal preparation system and a coal preparation method thereof, in particular to a jig for separating lump coal, a coal preparation system and a coal preparation method thereof. Background technique [0002] At present, when using jig machines to separate bulk coal at home and abroad, traditional common jig machines, coal preparation systems and coal preparation methods are generally used, as in the second printing and publication of China University of Mining and Technology Press in October 2002. "Mineral Processing" book 192~233 pages and 262~265 pages, and as contained in "Coal Preparation Handbook" published by China Coal Industry Press in April 1993, pages 329~435, the equipment, system and method A large amount of water is needed to loosen and transport the bed, so there are problems of power consumption and water consumption; and because the large block travels at a slow speed, the processi...

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Problems solved by technology

[0002] At present, when using jig machines to separate bulk coal at home and abroad, traditional common jig machines, coal preparation systems and coal preparation methods are generally used, as in the second printing and publication of China University of Mining and Technology Press in October 2002. "Mineral Processing" book 192~233 pages and 262~265 pages, and as contained in "Coal Preparation Handbook" published by China Coal Industry Press in April 1993, pages 329~435, the equipment, system and method A large amount of water is needed to loosen and transport the bed, so there are problems of power consumption and water consumption; and because the large block travels at a slow speed, the processing capacity per unit area is greatly reduced compared with the conventional method; and because the method and equipment work , a large amount of water and light products are mixed and discharged together, which increases the basic links of the whole system, making the supporting links such as screening, concentration, pressure filtration, and flotation huge, complicating the entire system, and multiplying the system investment

The Publication No. 1817469A published by the State Intellectual Property Office of China on August 16, 2006 contains a jigging and gangue removal coal preparation method and a gangue jigging machine. Although the problems of low water consumption and simple system have been solved, the The machine and method are only suitable for large coal gangue discharge. When raw coal is selected, only three products, namely heavy products, light products, and floating objects, can be sorted out at one time. If the accuracy of heavy products is guaranteed, the accuracy of light products cannot be guaranteed. If the accuracy of light products is guaranteed, the accuracy of heavy products cannot be guaranteed. It cannot be used for the separation of bulk coal that requires one-time separation of gangue, medium coal, clean coal and other products.

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