DK59984A - APPLICATION FOR SAASED SEEDING - Google Patents

Abstract

1. A device for the humid dressing of seeds, more particularly grain, comprising an essentially rotationally symmetrical dressing chamber (1) with a base wall (2), which slopes downwards from the outer circumference towards a central outlet opening (3), an upper wall, (4) which slopes downwards towards the outside, and an annular inlet slot (5) formed between the outer edge (4a) of the upper wall (4) and the base wall (2) for the seeds, at least one spraying device (6) arranged in the dressing chamber (1) for spraying the seeds which move during operation along the inner surface of the base wall (2) towards the outlet opening (3), a vertical seed supply pipe with a mouth (11) lying concentrically above the dressing chamber (1), a metering socket (12), which encloses the end section of the seed supply pipe and can be displaced coaxially thereto, and devices for the metered supply of dressing fluid to each spraying device (6), characterised in that a) the supply pipe is designed as a down pipe (10) having an inner chamber with an essentially clear axial passage, b) the metering socket (12) comprises an inner enlarged section (14) with a radially inwardly directed bearing surface (15) forming the underside of the said inner enlarged section and an outlet opening (13) lying coaxially beneath the mouth (11) of the down pipe (10), the diameter of the said outlet opening (13) being smaller or in extreme cases slightly larger than the mouth (11), c) at a distance beneath the outlet opening (13) of the metering socket (12), a deflecting surface (17) is arranged concentric to the said metering socket (12), d) the metering socket (12) is permanently forced by elastically deformable power storage devices (16) into an inoperative position, in which an annular gap (18) remains between the edge of the outlet opening (13) and the deflecting surface (17), the said gap having a predetermined passage cross section which is smaller than the outlet opening (13), and e) the power storage devices (16) and the enlarged section (14) are designed in such a manner that, during operation, the width of the annular gap (18) is automatically adjusted as a function of the seed loading the bearing surface (15) of the enlarged section (14).