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Coal-gangue separation system and separation method

A separation system and coal gangue technology, applied in the field of coal mine machinery, can solve the problems of low production efficiency, easy to occur missed selection, high labor intensity, etc., and achieve the effects of improving the recognition rate, reducing the difficulty and simple control method.

Inactive Publication Date: 2017-02-01
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of high labor intensity, low production efficiency and easy occurrence of missing and wrong selections in the existing artificial gangue selection method for ground coal and gangue separation.

Method used

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  • Coal-gangue separation system and separation method

Examples

Experimental program
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Effect test

Embodiment 1

[0039] In order to improve the separation efficiency of coal and gangue, protect the ecological environment of coal mine production, and improve the existing rough gangue selection method, the present invention provides a coal gangue separation system, such as figure 1 As shown, it includes a gangue flow conveyor belt 1, a gangue flow conveyor belt 2, a control device 6, a diversion device 3 installed above the gangue flow conveyor belt 1, a double visual recognition device 4, and a mechanical arm grabbing device installed above the two conveyor belts 5. Gangue flow conveyor belt 1 and gangue flow conveyor belt 2 are arranged side by side;

[0040] The distribution device 3 , dual visual recognition device 4 and mechanical arm grabbing device 5 are distributed sequentially along the conveying direction of the coal gangue conveyor belt 1 , and the dual visual recognition device 4 and the mechanical arm grabbing device 5 are electrically connected to the control device 6 .

[00...

Embodiment 2

[0045] On the basis of Example 1, such as image 3 As shown, the diversion device 3 includes a diversion support 301 erected across the coal gangue flow conveyor belt 1, along the conveying direction of the coal gangue flow conveyor belt 1, three groups of diversion baffles 305 are installed on the diversion support 301, which are respectively coarse grouping 302, subdividing one group 303 and subdividing two groups 304, the number of subdividing one group 303 and subdividing two groups 304 of diversion baffles 305 is greater than the quantity of coarse grouping 302 diversion baffles 305, and any group of internal phase The distance between the two adjacent diverter baffles 305 is adjustable, and the front and rear ends of the diverter baffles 305 are in contact with the coal gangue as blades.

[0046] Distribution device 3: Arrange multi-component flow baffles 305 on the beam of the distribution bracket 301 (perpendicular to the conveying direction of the conveyor belt), and ...

Embodiment 3

[0048] On the basis of Example 1, such as Figure 4 As shown, the double visual identification device 4 includes an identification bracket 401 erected across the coal gangue flow conveyor belt 1, and two cameras are installed on the identification bracket 401, which are respectively an industrial camera 402 and an infrared camera 403. The lenses are all facing the incoming coal direction of the coal gangue flow conveyor belt 1 .

[0049] The dual vision identification device 4 is based on the infrared imaging identification, and the combination of grayscale identification is added. Both the industrial camera 402 and the infrared camera 403 have camera brackets suspended on the identification bracket 401 .

[0050] Infrared recognition: Infrared camera 403 uses the principle of infrared imaging to distinguish coal gangue and coal on the image according to the difference in temperature. As long as the radiation energy is received, collected and detected, and the signals sent by ...

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Abstract

The invention provides a coal-gangue separation system and a separation method. The coal-gangue separation system is mainly formed by a flow-dividing device, a dual-vision identification device, a control device and mechanical arm gripping devices. The flow-dividing device is provided with multiple stages of adjustable flow-dividing baffle plates; through reasonably flow-dividing a coal-gangue flow, the approximate positions of coal and gangues can be determined, and the positioning and control cost is reduced; the dual-vision identification device adopts infrared thermal imaging identification and gray degree identification, and data parameters obtained through sampling are transmitted to the control module, so that the difficulty in identification and positioning is reduced, and the identification rate is improved; through two different identification ways, the evitable phenomena such as missing and wrong choosing are reduced; and a PLC (Programmable Logic Controller) is adopted to control three-degree-of-freedom mechanical arms to follow-up grip, and two-claw manipulators are arranged in fixed runners, so that the identification efficiency and the gripping efficiency of the coal and the gangues are higher, the control method is simpler, and an inertial impact force of the coal-gangue flow caused by excessive speed is reduced during a follow-up process.

Description

technical field [0001] The invention belongs to the technical field of coal mine machinery, and in particular relates to a coal gangue separation system and separation method, mechanical automation equipment for separating coal blocks and gangue in a coal washing plant, and a separation system capable of quickly identifying and sorting coal gangue. Background technique [0002] As my country's main energy source, coal has accounted for 66% and 73.2% of the primary energy consumption and production structure, and it is estimated that by 2020, the proportion of coal in my country's primary energy structure will remain at 62%. my country already has 14 large-scale coal industry bases and more than 8,900 medium and large coal mines. Its annual output ranks first in the world and strongly supports the steady and rapid development of the national economy and society. [0003] According to the assessment results of the national coal resource potential, the national prospective reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/34B07C5/342B07C5/36
CPCB07C5/34B07C5/3422B07C5/36
Inventor 曹现刚张瑞圆费佳浩李宁
Owner XIAN UNIV OF SCI & TECH
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