Flow-through tactics

Screw feeders are used to deliver product into extruders, roll presses, deaeration presses, and process machines, against a resisting pressure. They may also stimulate flow and secure feed through opening sizes much less than those over which the material will arch. Use of a horizontal screw transferring into a vertical down screw, allows a well-designed vee hopper with an extended slot to provide a good flow channel, while the final screw can deliver at pressure into roll press or extruder. De-aeration tactics, as described above, may also be appropriate. 

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