DEVICE FOR INTRODUCING DRY ADDITIVES IN LOOSE FODDERS Russian patent published in 2017 - IPC A23N17/00 

FIELD: agriculture.

SUBSTANCE: device consists of a hopper for loose fodders, in which an unloading screw is installed, made in the form of a circular section spiral fixed on a shaft. In the unloading area, the unloading screw is made in the form of radial flat blades also fixed to the shaft and made of plates with the thickness of 1…3 mm, the ends of which are bent to the angle α=2…10° opposite to the shaft rotation direction. Under the flat blades, there is a mesh made of round rods with the diameter of 2…4 mm, intersecting and fastened to one another, at intervals of 15…30 mm across the screw shaft and of 30…70 mm along the shaft. A multicomponent hopper-doser for dry additives is located in parallel with the hopper for dry fodders, which in two to seven sections on the common shaft has paddle drums with flat radial blades in the amount of 6…20 pcs. and unloading openings in the form of slots closed by adjusting flaps. Underneath all said hoppers, there is a premixing chamber, in the lower part of which there is a distributing cone, under which a main mixing chamber is arranged. The main mixing chamber is represented by a vertical cylinder with a vertical inspection window. On the axis of the main mixing chamber, 3…12 mixers are fastened, represented by a hub with 5…10 radial blades of circular cross-section, fastened thereto. In the lower part of the main mixing chamber, there is an unloading opening with an adjusting flap and an unloading tray.

EFFECT: improving the finished product quality.

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