Advantages and disadvantages of tubular conveyor belts

Tubular belts are a type of solid conveying equipment; they might be more suitable for the \"Transmission Equipment Exchange Area\". But I noticed that there is also very little discussion on belt conveyors; perhaps people think the equipment is simple and not worth discussing? Tubular belts are used for transporting coal; thanks to a special design that causes the belt to form a sealed tubular shape over the material being transported, leakage and spillage are prevented during transport, and it is not affected by external weather conditions such as rain or snow ； Of course, the belt can be installed outdoors, eliminating the need to build a separate trestle and thus reducing costs. There is no fundamental difference between this conveyor and a regular flat belt conveyor; the return path also uses a flat belt ； It simply curls into a tube on the conveying surface. Of course, this places higher demands on the toughness and strength of the belt ； Since it is necessary to maintain a cylindrical shape, additional idlers must be installed at both the top and bottom of the conveying section, which increases the manufacturing cost of the equipment ； The belt surface is also wide, with a minimum width of over 1100, I believe. After all, it is essentially a belt conveyor, so compared to ordinary belt conveyors, the operational precautions and key maintenance points are not significantly different. It should be noted that there are many idlers; damage to these idlers can have a significant impact on the belt. During inspections, pay close attention to avoid any abrasion, and be especially vigilant regarding the effects of protruding objects on the belt, in order to prevent the belt from being cut along its direction of movement. Tubular belt conveyor 1: Transport capacity: 200 t/h; Belt speed: 100 m/min; Belt width: 1100 mm. Model number: 72-0693-1 (skeleton diagram); Supplied by a Japanese manufacturer. Motor power: 45 kw, 4 poles. The skeleton is manufactured in China. Horizontal projection length: 116500 mm; Lift height: 32866 mm; Incline angle: 21°. Reducer ratio: i=1:35.5. Diameter of the tubing: 300 mm. Slipping detection device: 1; Deviation switch: 2; Pull-cord switch: 3. The above are the specifications for a tubular belt conveyor from a certain factory.

I’m sorry; the presentation content does not support Excel, and the data tables lack borders, making them a bit messy.

Here are some thoughts for reference: A tubular belt conveyor is a material handling device that evolved from belt conveyors. It was first adopted in Japan and later developed in Europe; many companies design and manufacture this belt conveyor. The design, manufacture, and use of tubular belt conveyors in our country are still in their infancy. The head drive drum and tail redirecting drum of the tubular belt conveyor are the same as those of a conventional belt conveyor. The belt is also a flat belt at the drive drum and the redirecting drum, gradually transitioning from the flat sections at both ends to a tubular shape in the middle. There are significant differences between the tubular section and the idler roller sets and conveyor belts; each set of idler rollers usually consists of 6 rollers arranged in a hexagonal pattern. Six idlers enclose the belt in a tubular shape to carry the material. Tubular belt conveyors have been widely adopted because they possess advantages that ordinary belt conveyors lack: 1. They can turn in both horizontal and vertical planes, or even simultaneously in both directions, with a maximum bending angle of 90 degrees in the horizontal direction. The minimum bending radius is 300 times the pipe diameter ； 2. By using a tubular belt conveyor, it is possible to eliminate the transfer room needed to change the direction of conventional belt conveyors, as well as the corresponding mechanisms at those transfer points, thereby reducing equipment investment ； 3. Due to the tubular design, the idler roller assembly is particularly compact compared to conventional belt conveyors with the same capacity ； The angle of elevation can be much greater than that of ordinary belt conveyors ； 4. Thanks to its tubular design, it prevents the materials being transported from being exposed to rain or wind during transit, thereby reducing environmental pollution. It also eliminates the cost of building belt conveyor tunnels. 5. The power consumption is similar to that of conventional belt conveyors, and the total investment is lower than that of ordinary belt conveyors ； 6. It is particularly suitable for complex terrains with long lengths, steep slopes, and sharp turns, offering good economic efficiency and practicality. It is most suitable for transporting polluting materials such as coal, cement, coke, etc. in power plants, ports, and mines with complex geographical locations and terrains.

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