System and method for intelligently monitoring belt-type conveyer for coal mine steel wire rope core

Abstract

The invention discloses a system and a method for intelligently monitoring a belt-type conveyer for a coal mine steel wire rope core. A monitoring platform of the monitoring system comprises a variable frequency control system, a running monitoring system for monitoring the running state of a steel wire rope core conveying belt and an electromagnetic online monitoring system for monitoring whether a defect is existent in the steel wire rope core conveying belt or not and the type and the position of the existent defect. The monitoring method comprises the steps as follows: 1, starting the conveyer and electromagnetically loading; 2, positioning the connectors on the conveying belt; and 3, acquiring signals in real time and synchronously classifying the signals, namely in the continuous rotation process of the steel wire rope core conveying belt, whether the defect is existent in the steel wire rope core conveying belt or not and the type and the position of the existent defect are determined by the electromagnetic online monitoring system, and the running state of the steel wire rope core conveying belt is monitored by the running monitoring system at the same time. The system and the method are reasonable in design, simple and convenient to use and operate, convenient to realize, good in using effect and high in practical value, and integrate the functions of variable frequency control, running monitoring and electromagnetic online monitoring.

Description

technical field [0001] The invention belongs to the technical field of intelligent monitoring of steel cord belt conveyors in coal mines, and in particular relates to an intelligent monitoring system and monitoring method for steel cord belt conveyors in coal mines. Background technique [0002] Nowadays, belt transportation is the main transportation system adopted by most mines, and usually undertakes the transportation of more than 65% of the coal volume, and plays an extremely important role in the modern coal mine production system. The national raw coal output is increasing year by year. With the development of science and technology and the continuous expansion of production scale, the coal output continues to increase. The belt conveyor is developing in the direction of large capacity, high power, and long distance. At the same time, it also leads to Belt conveyor failures and broken belt accidents occur frequently. Therefore, it is necessary to effectively monitor ...

AI Technical Summary

Problems solved by technology

[0006] (2) Faults during the operation of the belt conveyor

[0007] Belt conveyors are prone to failures such as deviation, tearing, overheating, slipping, coal piles, and smoke during operation

Once the above accidents happen to the belt conveyor, it will affect the service life and production efficiency of the conveyor at the slightest, and cause serious consequences such as equipment damage and casualties.

[0008] (3) The broken belt of the steel cord conveyor belt

And in the actual application process, because there are many types of defects in steel cord conveyor belts, and the signal characteristics are relatively complex, the defect signal pattern recognition of steel cord conveyor belts belongs to multi-classification recognition.

The research on defect signal pattern recognition in the existing detection system is seriously insufficient, and there are problems such as poor real-time performance and low reliability

[0015] In addition, the subsystems in the real-time monitoring system used by belt conveyors are independent of each other, and information fusion and intelligent judgment cannot be realized.

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