Stopping Costly Particle Segregation of Cake Mix The Need A major cake mix manufacturer was experiencing unacceptable variations in several of their final mixes. Jenike & Johanson was called in to solve this segregation (demixing) problem. From our observations and additional plant processing data, we determined the chief source of ingredient demixing was an often-overlooked one: the pneumatic conveying system. Pneumatic conveying is widely used to convey bulk solids due to its many advantages. It is a versatile, safe, relatively simple, inherently clean, and automation-friendly method of material transfer. On the other hand, pneumatic conveying introduces new handling concerns, especially with mixtures. A common – and costly – problem associated with pneumatic transport is particle se

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