| 1. | Material is usually dispensed from the hoppers using an screw conveyor.
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| 2. | From there the material goes on a horizontal screw conveyor.
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| 3. | The principle of the operation is the inverse of the screw conveyor.
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| 4. | Screw conveyors can be operated with the flow of material inclined upward.
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| 5. | The funnel can be equipped with a collecting screw conveyor if necessary.
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| 6. | Water addition may be conducted in either a screw conveyor or a pugmill.
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| 7. | At the end of the funnel is the inlet for the screw conveyor or the extraction pipe.
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| 8. | Two systems were prototyped and tested; a screw conveyor system and a novel cyclonic separator and vacuum system.
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| 9. | At the end of the screw conveyor there is a knife installed directly in front of the fixed hole plate.
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| 10. | The first type of screw conveyor was the Archimedes'screw, used since ancient times to pump irrigation water.
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