This paper illustrates the use of a computer model in the design of a twin belt rising conveyor. A parcel is raised up an inclined section of the conveyor on a load carrying belt. It is prevented from rolling back by a second weighted belt draped over it. The model calculates the changes in geometry of the draped belt and the forces acting on the parcel during its ascent, and discharge over the head roller. This facilitates comparison between different conveyor configurations in order to optimize the design of high cost capital plant. The computed results are proved experimentally.

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