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Zanin s.r.l.
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  5. Zanin - Single Step Hulling System

Zanin - Single Step Hulling System

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The Single Step Hulling System is engineered for the efficient hulling of various grains, leveraging a combination of gravity feed and centrifugal forces to achieve precise shelling. Incoming grains are channeled into the huller through a feed auger and undergo centrifugal hulling. A pivotal feature of the system is the use of a perforated basket, which can be adapted based on the specific product being processed. The design includes an advanced aspiration system that distinguishes between the lighter glumes and the denser grains, directing them to an oscillating plate separator. This element efficiently segregates clean product from impurities, with the latter being expelled and rerouted back to the feed auger. The machinery is versatile, available in multiple models, with capacities ranging from 400 to 900 tons per hour, specified for spelt wheat with a relative humidity of 14% and a clean product weight of 0.60 tons per cubic meter.
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The product is fed by way of gravity into a feed auger to enter the hulling system, where it is shelled through a centrifugal action.

The product then passes through a perforated basket, which varies depending on the type of product being treated, before exiting the hulling unit.

The aspiration system at the exit separates the light part (gluma) from the grain, which is then sent to an oscillating separation system.

This system is designed to separate the clean product, which exits from the outer part of the plate, and the impurities, which are expelled, falling into the central part and returning to the feed auger.

Key

Product in infeed from huller Product in infeed from huller

Hulled product Hulled product

Light impurities Light impurities

Recirculated product Recirculated product

Breakage Breakage

1. Product feed hopper

2. Feed auger

3. Huller

4. Oscillating plate

5. Broken product outlet

6. Aspiration

7. Cyclone

8. Hulled product outlet

  • Tubular supporting frame with reinforcement profiles.
  • Tubular casing with protective panels.
  • Ballast with concrete plates.
  • Tubular feed auger.
  • Magnetic separator for product in outfeed from feed auger.
  • Huller rotor.
  • Product discharge box with extractor.
  • Oscillating plate in carbon steel with mesh sieve.
  • Control panel complete with inverter.
  • Decanting cyclone

Available in various sizes and models for capacities from 400 to 900 t/h (capacities refer to incoming product. Calculated with spelt wheat. RH 14%, clean product. Specific product weight 0.60 t/m3).