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  • Gravity De-stoner TQSF Series Gravity Destoner

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Detail Extra

Product Name:Gravity Destoner, TQSF Series Gravity Destoner

TQSF gravity destoner is according to the different specific gravity and suspension speed between seeds and dinas, make use of the combine effect of wind-force and vibration, to separate the stone in seeds. The husk and other right impurity discharge by the wind power.

Principle of TQSF series gravity destoner:

- 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.

Scope of application of the gravity destoner:

The specific gravity destoner is used in grain milling for the classification and separation of granular materials into high-density (heavy), mixed and low-density fractions. It can classify and/or separate crushed corn (maize), corn germ and endosperm, light impurities from durum or ergot from wheat. The gravity stoner is mainly used for removing the coarse impurities, such as abreast stones, mud pieces and coal cinder, after wheat pre-cleaning. It also can be used for cleaning and choice of other food grains.

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