Belt Cleaning - coal dust

In the mine, conveyor belts develop wear grooves that trap coal dust and carries it back around on the return run causing a build up on support rollers. During the course of a day this can be 2-3 yards of material that has to be shoveled out from under the conveyor. Brushes wear out and add wear to the belt. These belts cost $45 a foot and can be hundreds of feet long. Thus, the mining companies are reticent to replace them. But if they do not keep the carry back contained, they get fined by the Mine Safety Commission. Installing a Model 110012 12" (305mm) Super Air Knife across the belt, it was able to clear the grooves without physical contact with the belt. It was a relatively inexpensive solution to belt replacement and/or fines.

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