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Automatic coal and gangue sorting system and method

An automatic sorting and coal gangue technology, applied in sorting and other directions, can solve problems such as poor working environment, high labor intensity, and low production efficiency

Active Publication Date: 2017-01-04
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manual sorting method is labor-intensive, low in production efficiency, and poor in working environment, which seriously affects the health of workers

Method used

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  • Automatic coal and gangue sorting system and method
  • Automatic coal and gangue sorting system and method
  • Automatic coal and gangue sorting system and method

Examples

Experimental program
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Embodiment 1

[0041] Embodiment 1: asfigure 1 , a coal gangue automatic sorting system and method, comprising: a vibrating feeder 1, a queuing device 2, a belt conveyor 3 arranged between the vibrating feeder 1 and a coal receiving hopper 8, arranged on a belt The first spray gun 4 and the second spray gun 5 in the middle of the conveyor 3, the first gangue receiving hopper 6 and the second gangue receiving hopper 7 arranged on both sides of the belt conveyor 3, the coal receiving hopper 8, and the industrial computer 9, The shading cover 12, the controller 11 connected to the industrial computer 9, the camera 10 and the light source 13 arranged in the shading cover 12; the first spray gun 4 and the second spray gun 5 are arranged in the same position facing away from each other. The first gangue receiving hopper 6 and the second gangue receiving hopper 7 are arranged in the orientation of the gangue movement track after the spray gun is activated. The shading cover 12 is made of opaque mat...

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Abstract

The invention discloses an automatic coal and gangue sorting system and method, and belongs to a coal and gangue sorting system and method. The sorting system comprises a vibrator feeder, a queuing device, a coal collecting hopper, a gangue collecting hopper, a belt conveyor, a detecting device, a camera, an industrial personal computer, a lens hood, an LED light source, an executing device, a controller, a high-speed electromagnetic valve and a spray gun. A belt is monitored in real time through the camera, and two square sub-regions are selected, wherein side lengths of belt imaging regions corresponding to the sub-regions are smaller than the lower limit of granularity of coal and gangue; the grey level histogram average value of the two sub-regions is calculated in real time and compared with a threshold, determined through a test, of gangue, coal and the belt, when the grey level histogram average value of the sub-regions is larger than the threshold, the material is judged as gangue, the controller controls the high-speed electromagnetic valve to be switched on, the spray gun blows the gangue into the gangue collecting hopper, and coal continues to move and fall to the coal collecting hopper or the conveying belt. Real-time monitoring is conducted through the camera, control is timely, the sorting result is accurate, the layout is close to that of site artificial gangue discharge, and actual transformation is easy.

Description

technical field [0001] The invention relates to a coal gangue sorting system and method. In particular, a coal gangue automatic sorting system and method. Background technique [0002] Gangue is a black solid rock associated with coal formation, with low carbon content and calorific value, but a large amount of gangue will be entrained in the coal mining process. In the deep processing of coal, gangue pre-selection is an important link in coal mine production, which can greatly improve the quality and utilization of coal and reduce the transportation cost of coal. At present, the pre-selection of gangue mainly adopts the method of manual sorting. Manual sorting means that workers sit on both sides of the belt, look at it with the naked eye, and select by hand to find out the gangue from the moving coal. The manual sorting method has high labor intensity, low production efficiency and poor working environment, which seriously affects the health of workers. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/342B07C5/02B07C5/36
CPCB07C5/02B07C5/3422B07C5/367
Inventor 窦东阳张勇王艳飞
Owner CHINA UNIV OF MINING & TECH
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