Fill Pass Diverter Handling Calcium Carbonate Client: Plastic pipe manufacturer Application: The client consulted an equipment supplier to discuss their delivery system for weighing individual ingredients. In their process, operators were manually lifting, opening and emptying 50 lb bags of calcium carbonate into holding bins. From the holding bins, materials were discharged into dry mixers. In this manual process, employee health was a concern because regularly lifting the heavy bags could cause injury. To eliminate the manpower, the equipment supplier suggested pneumatically conveying calcium carbonate into individual weigh hoppers, located above each mixer. The client liked the idea, but was concerned by the extreme abrasion that would result from high material transfer speeds. Addition

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