Large-particle-size coal gangue classifying and recycling device for tailings treatment

Abstract

The invention discloses a large-particle-size coal gangue classifying and recycling device for tailings treatment. The large-particle-size coal gangue classifying and recycling device for tailings treatment comprises an anti-overlapping conveying device, a sorting and conveying device, a colorimeter screening device and a guiding plate device, wherein the anti-overlapping conveying device comprises a first conveying rack and a first conveyer belt assembly arranged on the first conveying rack; at least one group of slice stopping assembly is arranged on the first conveying rack; the sorting andconveying device comprises a second conveying rack and a second conveyer belt assembly arranged on the second conveying rack; and at least one rolling shaft sorting assembly and the colorimeter screening device are sequentially arranged on the second conveying rack. The large-particle-size coal gangue classifying and recycling device for tailings treatment provided by the invention is reasonablein structure arrangement, capable of colliding coal gangue or coal briquettes, avoiding the coal gangue or the coal briquettes from adhering and overlapping, ensuring that the coal briquettes can be effectively separated from the coal gangue, sorting and detecting the separated coal gangue or coal briquettes, and separately collecting the coal gangue and the coal briquettes according to the detection result, and high-efficiency and convenient in collection operation.

Description

technical field [0001] The invention relates to the technical field of tailings treatment, in particular to a tailings treatment device for sorting and recycling large-size coal gangue. Background technique [0002] At present, the stockpile of coal gangue in my country is about 4.5 billion tons. According to incomplete statistics, there are more than 2,600 large-scale gangue dumps in the country, covering an area of ​​15,000 hectares. Currently, they are still growing at a rate of 150 million tons per year, and are surrounded by smog all year round due to spontaneous combustion. The spontaneous combustion of coal gangue will cause serious pollution and harm to the mining area and the surrounding environment, specifically manifested in air pollution, water pollution, soil pollution, landscape pollution, radiation to the human body, and life safety hazards, seriously damaging the mining area and surrounding areas. ecological environment. Moreover, the massive accumulation o...

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Problems solved by technology

Moreover, the massive accumulation of coal gangue may also cause geological disasters such as gangue collapse and landslide, coal gangue debris flow, and gangue explosion, which seriously threaten the lives of residents in the mining area.

[0003] The screening of coal gangue is currently generally carried out by water washing, but in the northwestern region where water is scarce, there is drought and little rain all year round, it is not suitable to use this method for screening coal gangue, resulting in the dry selection method, the traditional dry selection is through manual choose, inefficient

The coal content in the existing gangue dumps accounts for about 13.5%, and a large amount of coal is discarded on the gangue dumps every year, which not only increases the storage capacity of the gangue dumps, but also causes a lot of waste

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