Method for monitoring coal conveying belt of coal conveying system by intelligent monitoring system

Abstract

The invention relates to a method for monitoring a coal conveying belt of a coal conveying system by an intelligent monitoring system. The intelligent monitoring system comprises a coal particles identifying module, a belt sinkage detecting module, a belt lateral displacement detecting module, a belt conveyor vibration detecting module and a controller, wherein the controller is connected with each module in a wired way or in a wireless way. The method comprises the following steps of: monitoring whether large-sized coal is existed on the coal conveying belt by the coal particles identifying module; monitoring whether the large-sized coal is existed on the coal conveying belt by the belt sinkage detecting module; monitoring the status of the coal conveying belt by the belt lateral displacement detecting module; monitoring the belt conveyor vibration condition of belt conveyor caused by the vibration of the coal conveying belt throughby the belt conveyor vibration detecting module; and braking athe belt conveyor by the controller, wherein the controller receives the instruction that the belt conveyor needs to be braked and sends out the braking instruction, so that the belt conveyor is braked.

Description

technical field [0001] The invention relates to the detection field, in particular to a method for using an intelligent monitoring system to monitor a coal conveying belt of a coal conveying system. Background technique [0002] In industries that need to transport a large amount of coal, such as thermal power generation, iron and steel smelting plants, coal mining plants, coal chemical industry and other industries, coal conveyor belts are widely used. The transportation of coal from the coal pile or coal storage to the designated location, such as the combustion boiler, is generally realized by two-stage coal conveyor belt transmission. The primary coal conveying belt is also called the cantilever belt, which is usually installed on the cantilever belt conveyor. The cantilever belt conveyor is well known to those skilled in the art. , conveyor belt, transmission device, etc., the coal taking device holds a large amount of coal from the coal pile and pours it on the convey...

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Problems solved by technology

[0003] There are many protection and detection methods about coal conveyor belts in the prior art, such as belt transformation method, pressure detection method, pull wire switch detection, X-ray detection method, etc., but there are many problems in these methods, for example: 1. Only the belt is torn 2. The belt needs to be modified, which is very costly and unacceptable to users; 3. The technical means are single and cannot deal with various factors that cause damage to the coal conveyor belt during actual operation. The effect is not obvious, and the life of the coal conveyor belt has not been significantly improved; 4. The detection index is unstable, and the normal state and the fault state cannot be accurately distinguished, and it cannot be practically applied because of its high false alarm rate; Risk factors for belt breakage

[0004] Since the monitoring effect of the existing technology on the coal conveyor belt is not obvious, the life of the coal conveyor belt has not been substantially extended. Therefore, an intelligent monitoring system for the coal conveyor belt is needed, which does not require modification or contact with the coal conveyor belt. , can carry out bulk coal identification, belt deviation, broken belt and tear monitoring, and realize all-round monitoring and protection of coal conveying belt

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