Apparatus for pumping foaming liquids

Details Apparatus for pumping foaming liquids Apparatus for pumping foaming liquids

E - Fixed Constructions

03

B

137/75

E03B 5/00 (2006.01)

Patent

CA 1168954

A B S T R A C T An arrangement for pumping foaming or frothing liquids comprises a pump connected to a sump (3), where at least that part of the sump located nearest the pump casing (1) has the shape of a truncated cone (5) with the apex directed downwardly. The impeller is arranged to impart a swirling motion to liquid present in the sump (3), such as to create a swirl or whirl- pool having an air core (C). Arranged in the sump is a vent means (17) which is open at the top against the surrounding atmosphere and which has a bottom opening which at least partially covers the air core (C) Of the swirl or whirlpool. In this way the upper part of the air core is prevented from becoming blocked by foam or froth deflected towards the centre of the swirl, and gases released from liquid in the lower part of the swirl always have a free passage out of the sump (3). (Fig. 1)

388781

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