Raw coal and coal gangue rapid sorting device and method

Abstract

The invention provides a raw coal and coal gangue rapid sorting device and method. The device comprises a coal gangue mixture feeding conveyor belt, a coal gangue mixture sorting conveyor belt, a coalgangue discharging conveyor belt, a raw coal discharging conveyor belt, a coal gangue mixture crushing mechanism, a coal gangue mixture heating mechanism, an infrared image collecting mechanism and acoal gangue sorting mechanism. According to the method, the coal gangue mixture feeding conveyor belt conveys a coal gangue mixture to the coal gangue mixture sorting conveyor belt, at first, the coal gangue mixture crushing mechanism crushes the coal gangue mixture, the crushed coal gangue mixture is moved to the coal gangue mixture heating mechanism to be heated, the heated coal gangue mixtureis moved to the infrared image collecting mechanism to be subjected to infrared image collecting, then the coal gangue mixture is moved to the coal gangue sorting mechanism, according to the color difference between the infrared images of raw coal and coal gangue, a mechanical hand grabs the coal gangue and moves the coal gangue to be above a baffle, the mechanical hand is released to make the coal gangue fall to the coal gangue discharging conveyor belt, and the raw coal is moved into the raw coal discharging conveyor belt.

Description

technical field [0001] The invention belongs to the technical field of raw coal and coal gangue separation, in particular to a raw coal and coal gangue rapid separation device and method. Background technique [0002] In the process of coal production, coal preparation is an important link. If too much coal gangue is mixed in the raw coal, the quality of the raw coal will decline. Through coal preparation, coal of different quality can be obtained, and then the coal can be comprehensively utilized. . [0003] At present, the traditional coal preparation methods mainly include manual separation, wet separation and γ-ray coal preparation, among which wet separation is divided into dense medium coal preparation and jigging coal preparation. [0004] For the manual separation method, there are disadvantages such as high labor intensity, poor working environment, and low separation efficiency; for the dense medium coal preparation method, although it has the characteristics of h...

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Problems solved by technology

[0004] For the manual separation method, there are disadvantages such as high labor intensity, poor working environment, and low separation efficiency; for the dense medium coal preparation method, although it has the characteristics of high separation efficiency and easy discharge of large pieces of raw coal, However, this method has higher requirements on the performance of equipment and materials such as pipelines and chutes; for the jigging coal preparation method, although it has the characteristics of simple process flow and large processing capacity, the coal preparation equipment used in this method occupies the volume of the main workshop Larger, its infrastructure investment is higher; because the dense medium coal preparation method and jigging coal preparation method are both wet separation methods, a large amount of water resources are needed in the coal preparation process, which will also cause water pollution to a certain extent; for γ Although the ray coal separation method has the characteristics of simple equipment installation and small volume, the separation ability of this method is relatively limited, and gamma rays will also cause harm to the human body.

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