1973 de-Wit Stamicarbon 3716020 coating granules
This invention describes a method and equipment for applying a thin, protective coating to individual granules by generating a liquid screen of the coating material at the one end of a vertical shaft, passing the granules down through the screen and onto baffles and become enytrained with the granules impinging thereon. A rotary drum is provided adjacent the discharge end of the shaft to intimately mix the materials passing out of the shaft.
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