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US 6,547,173 B1Granted
Method and apparatus for removing the husks of oil-bearing seeds
AssigneeDr. Frische GmbH
InventorFriedrich-Wilhelm von Rotenhan
Life of this patent
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Abstract
A method and apparatus for removing the hulls of oil-bearing seeds, in particular sunflower seeds, in which a quantity of oil-bearing seeds are filled in a container (3). The seeds are agitated under pressure build-up within the container (3) by means of an agitating means (110, 120) and are pressed and rubbed against each other and against fragments of the hulls.
Claims21
An apparatus for dehulling oil-bearing seeds, in particular sunflower seeds, comprising
- a container for receiving a quantity of bulk material of oil-bearing seeds in a confined space;
- agitating means arranged in the container and held in the bulk material for agitating the seeds under pressure build-up within the quantity of bulk-material and for generating friction among the oil-bearing seeds whereby the seeds are pressed and rubbed against each other and against already separated hull fragments held in the quantity of bulk material;
- and
- control means for limiting the pressure build-up in the bulk material to maximum values at which the pressure acting on the oil-bearing seeds and the temperature increase resulting in the bulk material do not cause leakage of oil from the kernels.
1 more element
An apparatus for dehulling oil-bearing seeds, in particular sunflower seeds, comprising
- a container for receiving a quantity of bulk material of oil-bearing seeds in a confined space, the container comprising a stationary drum (100) without any equipment on its inside surface;
- and
- agitating means arranged in the container and held in the bulk material for agitating the seeds under pressure build-up within the quantity of bulk material and for generating friction among the oil-bearing seeds whereby the seeds are pressed and rubbed against each other and against already separated hull fragments held in the quantity of bulk material, said agitator means comprising a shaft (110) which extends in a longitudinal direction of the drum axis and which carries edged agitator bars (120) attached thereto, wherein the agitator bars (120) are spaced apart along the shaft (110) and are arranged with an angular offset at the shaft such that the bar axes follow a helical path, in which, for avoiding imbalance, complete screw threads are provided in the helical path on the shaft (110).
Dependencies are inferred from the claim text.