Intelligent dry waste discharge system based on true dual energy X-rays

Abstract

The invention relates to the field of coal preparation and waste discharge, in particular to an intelligent dry waste discharge system based on true dual energy X-rays. The intelligent dry waste discharge system includes a feeding mechanism, a conveying mechanism, a recognition mechanism and a sorting mechanism. The feeding mechanism is composed of a feeding funnel and a spray desliming device, the outer part of the feeding funnel is in an inverted cone shape, and the inner part of the feeding funnel is laid with wear-resistant porcelain plates which can reduce the abrasion of funnel wall surfaces; the spray desliming device is composed of spray pipes and a high-frequency sifter; the conveying mechanism is composed of an electronic belt scale which can monitor the feeding quantity in realtime, an electromagnetic iron remover which can reduce the contamination of sundries, a belt cleaner which can clean fine materials, and a lining-up device capable of forming a plurality of regular coal flows; the recognition mechanism is composed of an X-ray generator generating the X-rays with different intensity, a detector receiving the X-rays, an imaging upper computer, a BP neural network, and a lead isolation room; and the sorting mechanism is composed of a positioning device, a manipulator, and a PLC control cabinet. According to the intelligent dry waste discharge system based on thetrue dual energy X-rays, adaptability to coal is strong, intelligent recognition is realized, therecognition accuracy is high, and at the same time, coal-dust pollution is reduced.

Description

technical field

[0001] The invention relates to the field of dry coal preparation in coal preparation plants, in particular to an intelligent dry gangue discharge system based on true dual-energy X-rays Background technique

[0002] With the increase of coal mining volume year by year, high-quality coal resources are almost exhausted, and coal resources have been developing in the direction of "poor, fine and miscellaneous". In order to improve the quality of coal, the current coal preparation plant realizes the washing of coal in all particle sizes. The current mainstream coal washing methods are divided into wet coal preparation and dry coal preparation. For wet coal preparation, dense medium coal preparation has become the dominant process, and its precision is high, but its shortcomings are also particularly obvious. The medium dehydration process is complex and requires a large amount of water, and subsequent slime water treatment process is required; for dry coal prep...

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