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Simple Solutions for Four Conveyor Belting Build-Up Problems


Material build-up causes conveyor belt inefficiencies that can result in spillage, accidents and rejections from certain environmental regulatory boards.

While this could all mean an increase in production costs, there are simple solutions that you can employ when you experience these conveyor belting problems.

1. The belt splices are separating

Conveyor belt splicing is when two pieces of conveyor belt are joined together; this is either done to elongate the original length of the belt or to repair a damaged section.

Belt splice separation can be caused by the following:

  • Improper splicing procedure
  • Material build-up on conveyor
  • Excessive impact on belt and splice

Particles can migrate from the build-up and grind the belt’s top cover, which can lead to the separation of the splice, causing failed operations.

To avoid such cases, here are some things you can do:

  • Use a high-quality skirting at loading points and on spots where spillage is likely, then put lagging on the head and snub pulleys
  • To avoid material trapping between the belt and tail pulley, install a “belt plow” (a V-shaped blade) to contact the bottom covering of the belt

2. The belt goes off-track

Spillage and worn lagging can lead to material build-up and material build-up can cause the belt to go off-track.

When the belt continuously goes off course, there will likely be excessive wear to the top and bottom covering of the belt; a replacement may be required.

Here are some simple solutions to this problem:

  • Install a belt scraper on the head pulley and a slider-bed skirtboard system at the load point
  • For wet and sticky conveying conditions, use grooved lagging on the head pulley to repel the water and to help prevent build-up on the belt

3. The belt runs to one side over a long distance

A build-up of material on the idler rollers or on the chutes might be the catalyst of this problem. It is probably caused by the following two reasons:

  • The material is loaded off-centre on the belt
  • The conveyor frame or structure is crooked

Correct this problem with these solutions:

  • Install a non-stick and water resistant chute liner to evenly distribute and centre the load on the belt. One good liner material is rubber, as it is generally resistant to wear and tear
  • Set a downtime for the operation and straighten the conveyor frame

4. Excessive wearing of belt’s edges and top cover

Build-up on the snub pulley and return idlers, as well as improper loading, can both cause the belt’s edges and top covering to wear out.

You can reduce the wear by:

  • Installing a rubber or plastic sleeve on the return idlers
  • Putting a non-stick and wear-resistant liner on the chutes to achieve an even loading angle and material distribution
  • Using good quality skirting on the belt conveyor to avoid spillage

The next time a conveyor build-up problem arises, just remember these simple yet helpful solutions.

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