Thread Content
Highly efficient coal transportation systems for raw coal in both domestic and international contexts generally use belt conveyors for continuous transport, and the key parameters of these belt conveyors are also evolving toward greater automation and larger scale. The theory of design criteria for belt conveyors based on dynamics is not applicable to the design of large-scale belt conveyors. The parameters of large belt conveyors are much higher than those of ordinary belt conveyors, and they also have far more requirements in terms of performance for coal transportation in underground environments. 1. The value and role of belt conveyors: Conveying machinery is an important type of equipment used in the logistics industry today, with the belt conveyor being the key device in this category. It is widely utilized in various modern projects, especially in ports, docks, hydroelectric power stations, and other similar locations. With the rapid development of production and technology in modern society, belt conveyors are also evolving in a more long-term direction. Practice has shown that, compared to some traditional transportation methods, using long-distance conveyor belts to transport goods is more economical and safer than conventional methods. The important role played by belt conveyors in the transportation of raw coal can be summarized as follows: ① Belt conveyors enable the entire transportation process to be fully automated, which greatly enhances engineering safety during transportation; they are also more practical compared to semi-mechanized or manual transportation methods. ②The belt conveyor ensures high conveying efficiency throughout the process; the conveying time is proportional to the amount conveyed, and the speed of the conveying operation is also satisfactory. There are no cases of omission or incomplete delivery during the transfer process, which also helps to **reduce** the use of transfer resources. 2. Working principle of the flat-turning belt conveyor: The working principle of the flat-turning belt conveyor is largely similar to that of ordinary belt conveyors. Power is supplied by a driver, and the conveyor belt moves as a result of the traction exerted by the drums. At this point, the conveyor belt serves two functions simultaneously: it acts as both a driving element and a carrying surface. This is because the friction between the drive drum of the belt conveyor and the conveyor belt enables the traction belt to transport the materials. The difference lies in the forces acting on the conveyor belt during turning; due to tension, a centripetal force is generated. In order to balance the combined forces, different measures are often taken in the design of the turning sections. Planar conveying methods are mostly used in projects with relatively simple geological conditions, such as the transportation of raw coal in flat geological areas, as well as in transportation tasks where the height difference between different levels is not significant. The simple working principle of its belt conveyor, along with its straightforward design, enables fast and convenient transportation of materials.