Difference between revisions of "Vertical Ribbon Blenders"

Vertical Ribbon Blenders (view source)

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 '''Vertical Ribbon Mixers''' Consist of a tank with its contents recirculated through an upright auger. Actual agitation occurs only in auger which occupies less than one-tenth of the space in a typical 1-ton upright. Can not effectively handle liquid molasses or roughage. Operational efficiency also suffers due to the excessive amount of time required for mixing and unloading when compared with a horizontal mixer. Furthermore, thorough clean out is not achieved.
+==Working Principle==
+First step is charging of mixer from the top, manually or vide pneumatic or mechanical conveying. After the mixer is charged the mixing process starts.
+The mixing is carried by means of 3 distinct intermixing actions:
+*The screw agitator, turning on its axis, produces a lifting action as it spirals the materials in an upward flow.
+*At the same time, orbiting the tank, the screw removes material away from the wall and deflects it into the centre of the tank.
+*Material lifted by the screw gravitates downward, thoroughly intermixing with material being spiraled upwards.
+The typical speed of the central screw is 70 to 80 Rpm. The Tip speed can fluctuate from 1 to 3 m/s. The result is most intimate intermingling of all ingredients. The mixing time is depending on product characteristics, mixing accuracy and batch size