Anti-tear protection method and device for infrared ray beaming coal mine conveyor belt

Abstract

The invention discloses an infrared opposite-type coal mine conveyor adhesive tape anti-tearing protection method and device. An infrared emitter and an infrared receiver are installed on longitudinal beams on the two sides of a conveyor through lower fixing frames correspondingly; a coal receiving mechanism is arranged between upper adhesive tape and lower adhesive tape of the conveyor and comprises two coal receiving boards and one coal receiving tank; the two coal receiving boards are arranged obliquely, and the interval between the upper ends of the two coal receiving boards is greater than the interval between the lower ends of the two coal receiving boards; meanwhile, the lower ends of the two coal receiving boards are connected with the upper ends of the two sides of the coal receiving tank correspondingly; the coal receiving tank is rectangular, and the upper end of the coal receiving tank is open; a connection rod is arranged at the interval between the two ends of the two coal receiving boards; and the infrared emitter and the infrared receiver are located in the middles of the two ends of the two coal receiving boards correspondingly. The infrared sensors are used as collection elements to achieve all the functions of an original anti-tearing protection device, the defects of the original anti-tearing protection device are overcome, safe production of a mine is ensured, and investment of the production cost is reduced.

Description

Technical field: [0001] The invention relates to coal transportation equipment in coal mines, in particular to an anti-tearing protection method and device for an infrared ray cross-radiation coal mine conveyor belt. Background technique: [0002] Yongmei Company's "Mechanical and Electrical Refined Management Standards for Coal Mine Excavation" stipulates that the main conveyor belt conveyor should be installed below the coal drop point of the belt and 10-15m in the direction of the coal flow (when the belt conveyor is driven by the head). tear protection. At present, Chensilou Coal Mine has 10 sets of strong steel cord tapes, and more than 10 sets of anti-tear protection are installed according to the requirements. The anti-tear protection currently in use is mainly produced by Tianjin Huaning Electronics Co., Ltd., and the protection method is piezoelectric. The working characteristics of the anti-tear protection produced by Tianjin Huaning Electronics Co., Ltd. use 2 el...

AI Technical Summary

Problems solved by technology

The working characteristics of the anti-tear protection produced by Tianjin Huaning Electronics Co., Ltd. use 2 electrode plates. The 2 electrode plates are separated from each other and sealed with 2 pieces of rubber. When objects are scattered on the rubber plate, the oppressive force is sufficient. When it is large, the two electrode plates are connected, and the lower computer feeds back to the main controller to realize protection. After field use in recent years, the following shortcomings have been summarized: ①The two electrode plates used in the anti-tear protection adopt a parallel circuit, However, most of the anti-tear protection is scrapped at the cable joint due to the oxidation of the electrode plate due to the entry of moisture, and the moisture-proof ability is poor; ②The anti-tear protection is a rectangular rubber plate with a width of 40cm. The coal cannot be gathered together, which prolongs the protection action time, and the tape is torn to a large extent, and the anti-tear protection action needs to fall on the object that falls on the rubber plate to reach 10 kg before it can act. It is conceivable that the sensitivity is relatively low; ③The anti-tear protection is a one-time use of the overall package, and it cannot be repaired if it is broken. You can only replace it with a new anti-tear protection, and the cost is high.

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