TQSF Series Gavity Destoner in Wheat Maize Flour Mill Plant

TQSF series Gavity Destoner is typically suitable for separating high density materials like

stone,metal, glass, etc. from grain flows of wheat, rye, corn, oat, buckwheat, barley, or millet.

Additionally, this kind of separating machine has also been used in the brewing industry and

ethanol production industry.

- The sieve box which is normally equipped with two-layer sieves is supported by hollow

rubber springs and is caused to oscillate by one or two vibrators depending on machine

execution.

- The grain is spread by a feeder across the entire width of the machine, and then the product

stream is stratified on the pre-separation screen according to its specific gravity by the oscillating

motion of the screen and by the air flowing through the product from bottom to top. The light

particles collect at the top, and the heavy ones including the stones at the bottom.

- The lower layer with the heavy particles flows upward and is fed to the final separation zone

of the bottom de-stoning screen. Final separation of the stones from the grain is accomplished

by a countercurrent of air.

- The stone-free product streams on the two screens float on cushions of air, flowing slowly

toward the product outlet, and then are discharged through the squeezed rubber valves.

- To achieve the optimum degree of separation, the inclination of the screens, the air volume

and final separation can be adjusted accordingly.

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