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EP Conveyor Belt Tension Should Be How To Check
Jun 21, 2017

EP conveyor belt is a multi-layer polyester (or radial polyester, weft for the polyester amine) canvas in a certain way bonded together, up and down covered with high strength, good elastic grinding rubber. For the transport of small pieces, powder, granular and other materials. Applicable to medium and long distance, higher load, high-speed delivery of materials. High temperature EP conveyor belt with EPDM rubber for the cover layer, skeleton material using a dedicated high temperature canvas, a unique formula design. With a light body, long life (about 2-4 times), good heat resistance characteristics.

EP conveyor belt is mainly used for metallurgical, construction and other industries, conveying sintered ore, coke, cement clinker and other high temperature materials, material temperature does not exceed 800 ℃, with the surface temperature of not more than 200 ℃ under the conditions of use.

EP conveyor belt strength of the conveyor belt in the design of the strength of the check, usually according to the maximum static tension during operation to select the form of safety factor, and then included in the impact of other factors. The main factors affecting the strength of the conveyor belt are as follows.

The tension of the EP conveyor belt is the tension of the EP conveyor belt. When the internal tension of the EP conveyor belt is the same, the tensile stress caused by the static tension is evenly distributed in the conveyor belt section. With the operation of the conveyor belt, Stress, it is chosen with a strong basis.

The braking process is a very unstable process. The speed, acceleration, tension and disturbance of each particle are dynamic, and it is a function of time. This dynamic feature is less noticeable for small conveyors, but the effect on large conveyors is so great that the dynamic tension produced by such unstable conditions may greatly exceed the static tension and may even reach static tension Several times When an emergency brake occurs, the consequences will be very serious, easily lead to insufficient strength of the conveyor belt, causing the belt. But the use of soft starter device, the dynamic tension can be reduced to less than 30% of static tension.

Additional stress The additional stress of the EP conveyor belt includes the bending stress that bypasses each drum, the additional stress produced by the transition section, the additional stress generated in the bending plane and the horizontal bending section in the vertical plane. In the engineering design as long as the exact choice of drum diameter, the transition roller spacing and shape, the radius of the conveyor belt bending section, can greatly reduce these additional stress. There is also a redistribution of the stress in the conveyor belt due to manufacturing errors or bonding of pulverized coal, causing a radius change.

Calculations show that the two drive drum diameter deviation of 10mm, the load will be a difference of 60%, but the use of hydraulic coupling, increasing the slip of the two drums, the load changes will be much smaller.

The joint strength joint is the weakest link in the EP conveyor belt. The technical strength of the belt conveyor is: 70%, the strength of the vulcanized joint is more than 90%, and the strength of the vulcanized joint is 70%. A 2000m long conveyor is at least There are 40 connectors.