A Screw conveyor or Auger conveyor is a mechanism that uses a rotating helical screw, usually within a tube (Trough), to move liquid or grannular materials. The rotating part of this type of conveyor is called Auger.
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| SCREW CONVEYOR -- PARTS |
Screw conveyor in modern industry are often used horizontally or at a slight inclined as an efficient way to move semi-solid materials, including food waste, boiler ash, powder materials, agricultural material and many other. The first type of screw conveyor was the Archimede's screw, used since ancient times to pump irrigation water.
They usually consist a trough or tube containing either a spiral blade coiled around a shaft, driven at one end and held at the other end, or a "Shaftless spiral", driven at one end and free at other end. The rotational rate of shaft is directly proportional to the rate of material transfer.
Screw conveyors can be operated with the flow of material inclined upward. As the angle of inclination increases, the capacity of a given unit rapidly decreases.
Types of screw conveyors:
1) Horizontal screw conveyor
2) Inclined screw conveyor
3) Shaft less screw conveyor
4) Vertical screw conveyor
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| Horizontal screw conveyor |
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| Inclined Screw Conveyor |
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| Shaftless Screw Conveyor |
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| Screw Conveyor |
Source take from Wikipedia
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