A FEEDING DEVICE FOR HIGH PRESSURE DIGESTORS
The present invention refers to a feeding device for high pressure digestors of the type comprising a feeding assembly (1) that comprises a conical tubular body (6) having an inlet nozzle (9) and an outlet nozzle (10) mounted on a structural base (7) and a threaded axle (11) received inside it, said threaded axle (11) being driven by a motor (2), a reducer (3) and a speed variator (4) through a first end (14) and having a free opposed distal end (13). Right below said inlet nozzle (9), said threaded axle (11) is provided with a rectilineal stretch (16), in which said helical channels have a homogeneous depth (12a) to facilitate the gripping of the material. Further, the distal end (13) of said threaded axle has a conicity (17) corresponding to the conicity of said tubular body (6), the depth (12b) of the helical channels at said distal end gradually decreasing along the length of the axle, so as to expel the material and compress it against the inner surface of the tubular body.