The spillage issue with belt conveyors is a common problem with multifaceted causes. However, the key focus should still be on enhancing daily maintenance and care.
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Material spillage primarily occurs at locations such as the hopper, feeding troughs, etc. If the belt conveyor is severely overloaded, the rubber skirt plate of the feeding trough on the belt conveyor may be damaged, and the steel plate design is too far from the belt, making the rubber skirt plate too long, causing material to be ejected from the feeding trough. These issues can be addressed by enhancing control over conveying capacity and improving maintenance.
2. Spillage when the grooved belt is suspended
When the curvature radius of the凹段 belt section is small, the belt may become suspended, causing a change in the belt's groove condition as it has left the trough roller assembly. Generally, the groove angle decreases, leading to some material spilling out. Therefore, during the design phase, it is advisable to use a larger curvature radius of the凹段 to prevent such occurrences. For example, on mobile mechanical ship loaders and reclaimers, where the凹段 is designed without a circular transition to shorten the tail carriage, material spillage is more likely when the belt width is chosen with less allowance.
3. Distracted Spraying
The spillage when the belt runs off-center is due to the change in height of the two edges during operation—one side is higher, and the other is lower—the material spills out from the lower side. The solution is to adjust the belt's off-center running.
