Continuously working mixer

Continuously working mixer for the wetting of, fibrous material with a liquid binding agent, in a ring of material, comprising:

• an essentially horizontally arranged cylindrical housing (1), which is provided at a first end with a material supply pipe (22) for a continuous supply of material (29) and, at a second end, with a material discharge pipe (23) for a continuous removal of wetted material and which has an inner wall (31);
• a mixing apparatus (13) which is arranged coaxially in the housing and which is driveable at high speed and which mixing apparatus comprises mixing tools (25, 33, 38, 39) which project essentially radially therefrom and into the vicinity of the inner wall (31) of the housing (1);
• a draw-in zone (a) which is associated with a material supply pipe (22);
• a wetting zone (b) which is provided downstream in an axial conveying direction (27) of the draw-in zone (a);
• means for the admission of liquid into a ring (32) of material (29) which are provided in the wetting zone (b), and which ring (32) of the material (29) is helically conveyed and moved on the inner wall (31) of the housing (1) through its interior (21);
• and
• means for the separation of clusters, wherein, the conveying direction (27), immediately upstream of the material discharge pipe (23), a plurality of cutting devices (44) are provided in a radial plane (43) relative to the shaft (14) said cutting devices (44) being arranged at equal angular spacings relative to one another around the full circumference of said housing (1), wherein said cutting devices (44) each comprise one cutter shaft (47) with an extension (e) projecting from the inner wall (31) of the housing (1) into the interior (21) and which is provided with a plurality of spacingly arranged cutters (49, 50), wherein said extension (e) of said cutter shaft in the direction of its axis (48) substantially corresponds to the thickness (f) of the ring (32) of material.