Conveyor belt longitudinal-tearing online monitoring early warning device

A monitoring and early warning, longitudinal tearing technology, applied in the conveyor control device, conveyor objects, transportation and packaging, etc., can solve the problems of poor reliability and poor real-time performance.
CN102358505AInactive Publication Date: 2012-02-22TAIYUAN UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2012-02-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a conveyor belt longitudinal-tearing online monitoring early warning device, which belongs to the online monitoring technical field of conveyor belts in coal mine enterprises. A charge coupled device (CCD) infrared camera is installed below the conveyor belt to collect a picture of the conveyor belt, the picture is collected by a picture collection card to a host computerwith picture processing software, characteristics of processed pictures are compared through the software, the picture of cracks and tearing on the surface of the conveyor belt is recognized, the length of the crack is calculated, the host computer is communicated with a programmable logic controller (PLC) to issue an alarm or to carry out stop operation according to a set threshold value of the length of the crack, and a distance from a malfunction point to a monitoring point is detected and calculated through a speed sensor. In order to resist the interference, a sealing cabin is used for sealing a device detection area, and a cold light source is used for the light filling. Due to the adoption of the early warning device, the possible tearing accident of the conveyor belt can be accurately detected in time. The conveyor belt longitudinal-tearing online monitoring early warning device has the advantages that: cost is low, reliability is high, practicability is strong, effective sound-light alarm can be executed to reduce the tear of the conveyor belt when the tearing degree is smaller, and emergency stop also can be realized when a sudden larger degree tear of the conveyor belt is detected.
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Description

Technical field

[0001] The present invention is an online monitoring and early warning device for longitudinal tearing of a conveyor belt, which uses a combination of CCD infrared camera image detection technology and a programmable logic controller (PLC), and belongs to the technical field of coal mine enterprise conveyor belt online detection. Background technique

[0002] In the production process of coal mine enterprises, the longitudinal tear of the conveyor belt is one of the three major disasters of belt conveyors. Because the length of the steel core conveyor belt is relatively long, if the longitudinal tear cannot be found in time, it may cause the whole The conveyor belt was scrapped and the loss was serious. At present, there are many methods for detecting longitudinal tearing of conveyor belts at home and abroad, including conveyor abnormal current detection method, conductive body embedded belt detection method, idler force abnormal detection method, and wireless emi...

Claims

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