基于检测光幕的输送带撕裂监测技术应用

针对现有输送带检测装置不能有效检测输送带纵向撕裂、恶劣环境下可靠性低的问题，本文提出一种基于检测光幕的在线监测方法。该方法利用在输送带下方安装光幕传感器，连续采集输送带通过光幕传感器时的数据，对多组检测数据采用延时区间算法分析，计算光幕传感器发射的光线被连续遮挡的持续时间、移动方向和区间大小，结合输送带运行方向、区间大小间接检测输送带撕裂泄露问题。广东沙角c火电厂漏天料场应用表明，输送带纵向撕裂物料泄露检测率达95％以上，在恶劣环境下能正常运行。该方法有效解决了输送带检测装置可靠性差、抗干扰性低的问题，具有广阔的使用推广价值。

Application on Tear Monitoring for Conveyor Belt Based on Light Curtain Sensor

In view of the problem that the existing conveyor belt detection device is not effective in detecting conveying problem of low reliability in harsh environments, longitudinal rip of belt, a new method based on on-line monitoring and in- spection was presented in this thesis. By arranging the light curtain sensor below the conveyor belt, and continuously col- lecting the data through the light curtain sensor, the system can analyse multiple sets of collected data sing the delay inter- val algorithm and monitor the duration, movement direction and interval size that the lights of the light curtain sensor emit- ted has been continuously blocked. All these data helps detect if the conveyor belt has been torn. It is proved in the heat-engine plant C of Guangdong that the detection rate of the conveyor belt longitudinal tearing is above 95%, and the monitoring system can work normally in harsh environment and can be worthy of popularizing.