Dry De-stoner

This dry de-stoner separator has a great separating performance. It can remove stones, mud balls, glass or metal pieces, in grain size from the grain flow, making a great contribution to getting perfect products up to related food sanitary standards. The sieve box that is usually loaded with two-layer sieves is supported by hollow rubber springs and is caused to vibrate by one or two vibrators based on machine execution. The grain is spread by using a feeder across the entire width of that machine, and after that, the grain stream is classified on the pre-separation sieve based on the specific gravity through the vibrating motion of the sieve and due to the air flowing through the grain from the bottom to top, the light particles are collected at the top, and the heavy ones including the stones at the bottom. The stone-free grain streams upon the two sieves floating on air cushions, moving slowly and gradually towards the grain outlet, and then is discharged via the squashed rubber valves. To achieve the optimum degree of separating and classifying, the inclination of the sieves, the air volume as well as last separation can be adjusted accordingly. It is specially designed for cereals, legumes, coffee beans, oilseeds, grains, rice, maize, feed, chemical or food industry etc.