Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The main failure forms of the middle trough of the scraper conveyer are deformation, fracture and wear. The working environment and stress of the scraper conveyer middle trough have different influence on it. The specific working environment and stress of the middle trough of the scraper conveyor are as follows:
As the main conveying equipment, the scraper conveyer is usually installed in the fully-mechanized mining face, and the underground working conditions are complicated, which has great influence on the equipment and its accessories. The specific influences are as follows :(1) the humidity of the underground working environment is relatively high, and there will be a large amount of water dripping on the roof of the roadway, which will affect the normal operation of the scraper conveyor. (2) Underground by a large number of electrical equipment, the working environment is very large stray current, easy to cause the scraper conveyor electrochemical corrosion. (3) Hydrogen sulfide, hydrogen gas, carbon dioxide, methane and other gases in underground air will bring different degrees of chemical corrosion to the central trough of scraper conveyor. (4) When the scraper conveyor central trough is working, it is often impacted by coal, and even sometimes it will be stuck by coal and gangue.
In addition to the above adverse environment affects the stable operation of the scraper conveyer, the complex stress conditions also have a great impact on the middle trough. The main forces are as follows :(1) during the sliding, it is affected by the thrust force of the bracket, the force between the bending sections, various gravity forces and friction forces. (2) When the frame is pulled, the central trough of the scraper conveyor will also be affected by the pulling force of the bracket, the force between bending sections, all kinds of gravity and friction. (3) During the operation and general transport of the shearer, it will also be affected by the impact force, gravity and friction of the coal.
The strength and quality stability of the central trough of the scraper conveyor affect the performance and service cycle of the whole scraper conveyor. More knowledge of scraper conveyor mid trough maintenance, you are welcome to continue to pay attention to Henan Shuanzhi.
