Detection method of belt conveyor material flow detection system for transporting materials

Abstract

The invention discloses a detection method of a belt conveyor material flow detection system for transporting materials, and belongs to the field of automatic detection and control. The method comprises the following steps: (1) generating a material flow vibration signal: at least one of all horizontal support rollers in the belt conveyor material flow detection system is an eccentric support roller, the eccentric support roller is an elliptical roller, or a circular support roller, wherein an eccentric block is arranged on the peripheral surface of the circular support roller, the materials on a conveyor belt pass through the part above the eccentric support roller, and the eccentric support roller generates the material flow vibration signal which is transmitted to a belt conveyor bracket; (2) detecting the material flow vibration signal: a vibration sensor arranged on the belt conveyor bracket detects the material flow vibration signal generated in the step (1); (3) acquiring and displaying the material flow vibration signal. By the adoption of the technical scheme of the detection method, the vibration signal amplitudes vary more than ten times when the belt has materials and does not have materials, so that the high reliability of belt conveyor material flow is indirectly detected.

Description

[0001] The patent application of the present invention is a divisional application with application number: 2012101305898. The application date of the original application is: 2012-04-28. The name of the invention is: a belt conveyor material flow detection system for transporting materials and its detection method. technical field [0002] The invention relates to the technical field of automatic detection and control of material flow on a belt conveyor, more specifically, relates to a detection system for a belt conveyor with and without material, and is a belt conveyor material flow detection system based on the principle of mechanical amplification signal separation detection method. Background technique [0003] The belt conveyor conveying system of a large iron and steel enterprise has the characteristics of many processes, long transportation lines and frequent operations. At present, various iron and steel production enterprises usually adopt the raw material supply ...

AI Technical Summary

Problems solved by technology

However, there is no reliable and effective detection method for whether there is material on the belt conveyor, and where the material head and tail of the material flow are. Therefore, domestic belt conveyor transportation companies generally do not have a reliable and low-cost material flow tracking system.

Most belt conveyor transportation systems generally rely on a limited number of industrial cameras to observe and estimate, or rely on manual observation when refueling is required, and notify the time of refueling or dumping through the walkie-talkie, so that automatic detection and tracking of material flow cannot be achieved

[0005] At present, there are also material flow detection devices installed on belt conveyors. There are two main types of devices installed by various raw material factories on belt conveyors for material flow detection: one is a metering electronic scale, and its main function is to monitor the conveyed materials. Metering, but due to its large equipment structure, high precision requirements, and relatively high investment costs, it is not suitable for ordinary logistics monitoring. At present, it is mainly used to measure the conveyed materials; and the other is scraping The main function of the plate-type material flow detection device is to monitor the flow change of the material. The scraper-type material flow detection device is generally installed above the tail car belt. When the material is conveyed on the belt conveyor, the material and the scraper-type material flow detection device The contact of the scraper makes the scraper tilt and presses the contact of the detection device, indicating that the belt conveyor is running with material, and when the scraper is naturally vertically downward, the scraper and the contact of the detection device are not in contact, indicating that the belt conveyor is in idling operation state, but the problems existing in the scraper type material flow detection device in the prior art are: (1) When the material flow on the belt conveyor is too low or the material flow on the belt conveyor is intermittent, the detection effect of the scraper type material flow detection device is quite inaccurate , thus affecting the monitoring effect during the operation of the belt conveyor; (2) The scraper type material flow detection device is prone to failure due to long-term operation and has low reliability, high failure rate, short service life, low maintenance cost and strength Large, currently rarely used

This application can detect whether the belt is running with load or no load, and realize the sprinkler device on demand, but the structure of the application is complex, the production cost is high, and the operation and maintenance costs are high

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