FIELD: paper and chemical industries. SUBSTANCE: device has body with bin for receiving pulp, successively arranged conical thickening chamber with a hole in its body for air withdrawal, conical and cylindrical compression chambers and mixing chamber. Pulp is supplied with the help of feeding screw conveyer to thickening chamber and from it by pressing screw conveyer to conical compression chamber, Screw conveyers are rotated by different motors. Pressing screw conveyer runs through cavity of core of feeding screw conveyer along its axis. Attached to shaft end of pressing screw conveyer is pulp fluffer. The invention allows performance of thickening, dewatering, fluffing, mixing with liquid of gaseous chemical reagents, heating with live steam and transportation at any process heights and distances of pulp (fibrous mass) of mean and high concentrations by one device at different sections of process lines of wood-pulp and paper and chemical industries. The device is also applicable in production of nonwoven materials. EFFECT: higher efficiency. 13 cl, 1 dwg
