Device for continuous heating of aqueous solutions employed in plants for the manufacture of paper pulps

摘要

This device comprises: - an enclosure (10, 30) defining a closed space connected to the circuit of the plant by an entry conduit (34) receiving from this conduit the solution to be heated and by an exit conduit delivering the heated solution to the circuit, - at least one pair of electrodes (20, 20') arranged in two opposed places of the enclosure and which have at least one surface (21) in contact with the solution introduced into the enclosure, and - means for applying a voltage to the terminals of this pair of electrodes so as to cause a current to pass through the solution by ionic conduction, producing the heating of this solution in bulk by a Joule effect. <IMAGE>