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Technical standard for detection of steel rope lifting belts in coal mines

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  • Release time：2022-02-24
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Detailed introduction
Technical standard for detection of steel rope lifting belts in coal mines
Because there is no national and industry testing technology standard for steel wire rope conveyor belt in coal mine, the testing technology for steel wire rope conveyor belt in coal mine is for the use and maintenance of coal mine equipment. The detection technology is based on the design structure of steel wire rope conveyor belt of various models and specifications, the reciprocating rotation operation characteristics and the common damage types of conveyor belt, and adopts a variety of instruments and equipment to carry out on-site detection of the appearance quality, bandwidth, covering layer thickness and other major items of the conveyor belt, and regularly track and record the use status of the conveyor belt under inspection. The conveyor belt testing database is established and analyzed and summarized, and the conveyor belt testing technical standards are formulated. The working principle of belt conveyor is to transfer the traction force by driving the friction and adhesion between the drum and the conveyor belt, so that the conveyor belt can run and complete the transportation of coal in the underground working face.

With the development of the coal industry in the direction of highly centralized, intensive, high-yield and high-efficiency comprehensive mechanization, the production capacity of shearer and the output of working face have been greatly improved, the rapid advancement of working face, and the product models, specifications and technical capabilities such as the advancing length of mining area, the conveying capacity of belt conveyor, transport distance, driving power bandwidth and belt speed have been increased and improved. At present, belt conveyor has become the main transportation equipment of raw coal transportation system in underground coal mine. The high Angle conveyor belt is not only the bearing component of the belt conveyor, but also its traction component. The safety and reliability, saving production costs and improving the service cycle of conveyor belts in the use process have been paid more and more attention by coal production enterprises. The testing items and judgment criteria in this standard can scientifically and accurately evaluate the use status of conveyor belts in use, providing guidance for equipment management, use, testing and daily maintenance. To ensure the safety and reliability of the conveyor belt during operation. In order to improve the service life of the wire rope conveyor belt, the conveyor belt has the following aspects: 1 The wire rope is the main skeleton material of the wire rope core conveyor belt. Good fatigue strength of wire rope is very important to the service life of wire rope core conveyor. 2 The core glue in contact with the wire rope has good adhesion and permeability to the wire rope, and the core glue is very critical to the service life of the wire rope core conveyor belt. 3 Wire rope conveyor belt processing, control of the tension of each wire rope is also extremely important 4 wire rope core conveyor belt temperature and vulcanization time control is also very important. 5 The choice of the upper and lower rubber coating of the steel wire rope core conveyor belt, and the consistency of the thickness control of the conveyor belt is also very important.
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