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Chemical Engineering

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Tumble blenders for high accuracy mixtures

| By Gerald Ondrey

The V Cone Tumble Blender (photo) utilizes diffusion mixing to deliver low impact, highly accurate and repeatable mixing of powders, high-density powdered metals, granules, pellets and other free-flowing solids. The Model VCB-50 V Cone Tumble Blender (photo) is designed for ambient-pressure operation and features a stainless-steel type 316 intensifier bar fitted with high-speed 19-in. chopper blades operating at 475 rpm to reduce the size of agglomerates. The intensifier bar doubles as a spray bar equipped with fan-style nozzles for minor liquid additions. The V-shaped vessel is driven by a 30-hp motor to approximately 12 rpm, while the intensifier bar is driven by a 15-hp motor. Sanitary tri-clamp connections and mirror finish on the product wetted parts promote easy cleaning, inside and out. — Charles Ross & Son Company, Hauppauge, N.Y.