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Simple construction with three rows of sieves cleaned with rubber balls.
Exhaustion of light impurities both at material input and output.
Regulation of air amount using a flap.
It can work as a cleaner or as a precleaner, depending on the sieves used.









  1. Hopper

  2. Exhaustion of light impurities at the input

  3. Regulation air barrier at the input

  4. First sieve for coarse precleaning

  5. Oversize big impurities

  6. Case bottom

  7. Second top sieve

  8. Oversize impurities at the second sieve

  9. Bottom sieve

  10. Case bottom

  11. Tailing discharge

  12. Discharge of clean grain into the suction shaft

  13. ------

  14. Shaft for exhaustion of light impurities at the output

  15. Air suction flap

  16. Fan

  17. Air output from the fan

  18. Clean grain discharge

  19. Eccentric drive for cases

  20. Drive rods

  21. Case suspensions


Function description:

The grain is led to the hopper (note l) via a gravity pipeline or on a conveyer. The grain falls on the first sieve for coarse precleaning (note 4) through the regulation barrier (note 3), where light impurities are exhausted (note 2). Big impurities fall over the first sieve to the outfall (note 5) and the precleaned material gets to the second top sieve (note 7), which has smaller openings than the previous one. The oversize of this sieve also continues to the outfall. The seeds fall through to the bottom sieve (note 9), where small impurities are separated. They go to the tailing discharge (note 11). Cleaned material falls to the channel (note 14), where light impurities are exhausted. They are transported to a cyclone or a dust chamber via a fan (note 16) and a pipe (note 17). The discharge from the cleaner continues via a collecting funnel to another conveyer.


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