APPARATUS FOR INTRODUCING POLYMERIC ADDITIVES INTO PULP Russian patent published in 2003 - IPC

FIELD: pulp-and-paper industry. SUBSTANCE: apparatus has branch pipe connected to pulp pipeline and to one or several distributors equipped with annular channels extending coaxially to pulp pipeline and connected thereto through radial channels. Axes of radial channels are arranged at acute angles to pulp pipeline axis in pulp flow direction and tangentially to pulp pipeline. Introduction of polymeric additives by dissipated introduction method from at least two sites provides for complete consumption of solution by sequential maintaining, optimizing and intensifying of flocculation process. Dissipated introduction of polymeric additives through pulp pipeline provides for maximal fluctuation effect in mixing zone. Arrangement of radial channel axes at acute angle to pulp flow axis prevents channels from being blocked with pulp fibers. Arrangement of radial channels tangentially to pulp pipeline axis facilitates dispersion of polymeric additive flows, quick and uniform mixing thereof. EFFECT: increased efficiency in consumption of polymeric additive solutions and improved physico-mechanical properties of produced paper. 3 cl, 3 dwg