On-line eddy current monitoring method for longitudinal tear damage of wire rope conveyor belt

Abstract

The invention discloses an online eddy current monitoring method for longitudinal tear damage of a steel wire rope conveyor belt. The eddy current monitoring device includes an eddy current detector, an eddy current detection probe, and a probe scanning device. Changes in the distance between the inner wire ropes, timely detection of damage to the wire rope conveyor belt caused by the insertion of sharp foreign objects, and before the wire rope conveyor belt is torn, the alarm will be notified to the monitoring personnel in time to avoid the occurrence of wire rope conveyor belt tearing accidents. This method monitors Fast speed, high sensitivity, even if a small sharp foreign object is inserted into the damage, it can be found in time, and the safety and health status of the steel wire rope conveyor belt can be monitored in real time. Online security monitoring work.

Description

technical field [0001] The invention relates to a non-destructive testing method, in particular to an online eddy current monitoring method for longitudinal tear damage of a steel wire rope conveyor belt. Background technique [0002] Wire rope conveyor belt is a rubber conveyor belt with steel wire as the skeleton, which is composed of core rubber, steel wire rope, covering layer and edge rubber. It is suitable for material transportation under tear-proof conditions in coal mines, mines, ports, electric power, metallurgy, building materials and other industries. It can be used for long-distance, large-span, large-capacity and high-speed material transportation. There are many forms of damage to the wire rope conveyor belt, mainly including: severe wear on the rubber surface; edge tearing; tearing. Among them, the tearing of the conveyor belt is the most harmful form of damage. It mainly refers to the longitudinal tearing of the conveyor belt caused by the insertion of shar...

AI Technical Summary

Problems solved by technology

The monitoring methods commonly used in the past include fishing line detection devices, rod detectors, contact belt switches, swing frame detection devices, seismic detection devices, leakage detection devices, embedded metal coil detector methods, etc. In recent years, there are also monitoring methods of strain gauge force sensors, longitudinal tear monitoring methods based on radio frequency identification technology, ultrasonic scanning detection, ray detection, etc. These methods can detect longitudinal tearing of steel wire rope conveyor belts, but most methods are costly Higher, poor detection accuracy, more complex on-site operations, and most methods can only be detected after the conveyor belt is torn, the accident alarm is less in advance, and sometimes the accident cannot be avoided in time

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