一种基于激光反射的煤矸识别方法

By spraying on a scraper conveyor and using laser reflection to identify coal blocks and gangue, the problem of low coal and gangue identification accuracy in existing technologies has been solved, achieving safe and efficient coal and gangue sorting.

CN122409520APending Publication Date: 2026-07-17CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for coal and gangue identification suffer from low accuracy, missed detections, and false alarms. They are particularly difficult to effectively distinguish between coal blocks and gangue in complex underground environments. Furthermore, existing methods pose health hazards and environmental pollution risks.

Method used

A coal and gangue identification method based on laser reflection is adopted. The coal and gangue are moistened by a spray device on a scraper conveyor, and a laser irradiation device emits a laser of a specific wavelength. The reflected laser energy information is received by a laser receiving device, and the coal and gangue are distinguished according to the intensity of the reflected laser energy.

Benefits of technology

It improves the accuracy and efficiency of coal and gangue identification, avoids manual intervention and environmental pollution, and achieves safe and efficient coal and gangue sorting.

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Abstract

本发明涉及煤矸识别技术领域,尤其涉及一种基于激光反射的煤矸识别方法。本发明首先通过喷雾装置对刮板输送机上的煤块与矸石进行湿润,然后利用激光照射装置照射喷雾后的煤块与矸石,之后借助激光接收装置接收反射激光并得到反射激光能量信息,最后基于反射激光能量信号分析反射块的激光反射强、弱,进而判断该反射块是煤块或是矸石。本发明充分利用煤块和矸石不同的吸水特性以及吸水后的激光反射特性对煤矿和矸石进行精准识别,能够解决煤炭开采中难于精准识别煤矿和矸石的问题。
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