FIELD: agriculture； machine building.SUBSTANCE: invention relates to agricultural engineering, in particular to machines for dressing agricultural crops seed. Device includes a split cylindrical body and dressing chamber (6). Inside the housing and chamber (6), there is a detachable transporting working body in the form of screw (7), loading (8) and unloading (9) trays, tank for working fluid (13), metering pump (14), air fan (11) with a device for heating air (12), drive (10) of the transporting working body, aspiration pipe (24) mounted inside unloading tray (9), as well as sprays (18). Sprays (18) are installed on the upper hatch of dressing chamber (6), in which the installation sites of sprays (18) are made concave to the outside. Dressing chamber (6) is installed in the connector of the cylindrical body and is additionally equipped with a lower hatch (16) having rectangular-shaped openings (20). Grids and confusers (22) are installed in the holes in the lower hatch. Distance between the centers of holes (20) of lower hatch (16) and between the centers of sprays (18) along the axis of screw (7) is equal to the double pitch of screw (7) flight. Centers of sprays (18) are offset relative to the centers of holes (20) of lower hatch (16) upward along the axis of screw (7) by a distance equal to the size of one step of screw (7) auger. Confusers (22) are set relative to the axis of screw (7) at an angle ϕ, whose value is determined by the formula ϕ=90-ϕ1, where ϕ1 – the angle of elevation of the screw line of screw (7).EFFECT: reduction of the energy intensity of the process of pre-sowing preparation of seeds of agricultural crops is ensured by combining the operations of seed dressing and loading, full uniform dressing of seed material and increasing the effectiveness of the use of biological preparations for seed dressing.1 cl, 4 dwgИзобретение относится к сельскохозяйственному машиностроению, в частности к машинам для протравливания семян сельскохозяйственных кул
