How to Design Efficient and Reliable ...
calculating screw torque, the head of material associated with the full hopper outlet width, not that associated with just a single screw, must also be used. Special screws can be used to provide compaction of the bulk material and thereby seal against adverse pressure gradients [6, 7]. An example of such a screw is shown in Fig.!3. Spokes and/or blades are sometimes used near feeders (Drive ...