Design of online separation system for coal and gangue
-
摘要: 针对目前常用的原煤洗选方法存在设备复杂、需要大量的水等问题，设计了一种基于双能γ射线和数字图像识别技术的煤与矸石在线分选系统。单片机实时判断探测器下方的物料是煤或者是矸石，当判断为煤块时，喷枪无动作，煤块落入煤通道；当判断为矸石时，单片机控制喷枪喷出高压气体，将矸石吹入矸石通道；当有些煤中含杂质较多或者矸石含碳量较高时，则由图像识别模块根据煤与矸石在灰度上的差异来区分煤与矸石，并将识别结果传送给单片机。模拟实验结果表明，该系统能有效识别煤与矸石，识别精度满足工业生产要求。Abstract: In view of problems of complex devices and needing a large amount of water in current common raw coal separation methods, an online separation system for coal and gangue based on dual-energy γ-ray and digital image recognition technology was designed. The single-chip microcomputer real-timely judges materials under detector whether coal or gangue, if it is coal, spray gun has no-action, if it is gangue, the single-chip microcomputer controls the spray gun spray high-pressure gas to insufflate the gangue into gangue channel. When the coal has many impurities or the gangue has many carbons, image recognition module distinguishes coal and gangue according to gray differences between coal and gangue, and sends recognition result to the single-chip microcomputer. The simulation test result shows that the system can recognize coal and gangue effectively and its recognition precision meets requirements of industrial production.
-
Keywords:
- coal and gangue /
- online separation /
- dual-energy γ-ray /
- image recognitio
-
计量
- 文章访问数: 41
- HTML全文浏览量: 9
- PDF下载量: 15
下载:
