What type of pneumatic discharge system is suitable for handling
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animal feedingstuffs? I understand that some systems are better than others with regard to minimizing degradation.
AA rotary-seal system is the type normally used for the pneumatic discharge of cubes and pellets, but a pressure-discharge system is in some cases suitable for handling smaller cubes and pellets, and for grain, In a rotary-seal system the material is tipped into the seal, mounted at the rear of the body, and is discharged by air supplied from a compres
sor to a duct on the lower side of the seal. Typically, the compressor is driven from a gearbox power take-off and the seal is operated by a hydraulic motor.
The non-tipping pressure-discharge bulk vehicle was developed for free-flowing powders and so on, the bodywork being in the form of a tank..Air pressure is applied to the space above the material and also to a fluidizing pad or pads at one or more hopper-type. outlets.
In later types of rotary-seal systems degradation is reduced to a minimum but some systems cause less degradation than others depending on details of rotary-seal design and operating speed. If a pressure-discharge system is suitable for handling a particular material, it may well have the advantage over the rotary-seal type with regard to degradation. But it is pertinent to add that degradation can be caused by sharp bends in the delivery pipe.
Anauger type of discharge system may be used for handling virtually any type of material.