A monitoring method for efficient and safe operation of belt conveyors in coal mine working faces

Abstract

The invention discloses a method for monitoring the efficient and safe operation of a belt conveyor in a coal mine working face, comprising the steps of: 1. arranging hardware equipment for monitoring; 2. data collection and transmission; Operational control. The method of the invention has simple steps. The coal flow can be efficiently and accurately detected by detecting the feature point data of the outer contour of the coal flow by using the laser radar, detecting the real-time belt speed of the conveyor belt by using the rotary encoder, and then analyzing, processing and calculating the data on the computer. ;The visual sensor is used to efficiently and accurately detect the outline of the coal on the conveyor belt, so as to realize the accurate and automatic identification of large coal on the working face; the detection efficiency of coal flow is high, the precision is high, the identification method of large coal is simple and reliable, and the error is small. The efficient and safe operation of the belt conveyor is of great significance and is convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of coal mine production process monitoring, and in particular relates to a method for monitoring the efficient and safe operation of a belt conveyor on a coal mine working face. Background technique [0002] Coal is one of the main energy sources in our country, and its position will not change for a long time. Although with the continuous reduction of coal storage in my country and even the whole world, various countries are paying more and more attention to the development and utilization of primary energy, but my country's current underground coal gasification or other technologies are still relatively weak, and some industries still rely on coal. Therefore, for some time to come, coal mining will continue. [0003] At present, in the fully mechanized mining face or tunneling face of coal mines, in the process of transferring coal to the belt main transport system through scraper conveyors and transfer m...

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Problems solved by technology

[0003] At present, in the fully mechanized mining face or tunneling face of coal mines, in the process of transferring coal to the belt main transport system through scraper conveyors and transfer machines, the degree of automation is low for the detection of large lumps of coal, and the reloader is still used. Stare at the side to see if there is a large piece of coal; most of the detection of coal flow at present often ignores the gap between the belt and the idler, and considers that the belt is completely in contact with the idler, that is, the belt is used as the belt in the calculation of the coal flow cross-sectional area. Straight line processing, but the actual belt is arc-shaped and cannot be in full contact with the idler, resulting in low accuracy in calculating the instantaneous cross-sectional area in the prior art, thus affecting the detection accuracy of coal flow

In the prior art, regarding the efficient operation of the belt conveyor, an efficient operation method of the belt conveyor based on coal flow monitoring has been explored. The coal flow detection mainly uses the image detection method, which is more complicated to extract the outline of the coal on the belt. Neglect of coal profile fluctuations, resulting in low detection accuracy

Various methods in the prior art cannot efficiently and effectively realize the efficient and safe operation of the belt conveyor in the coal mine working face

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