WEIR SKIMMER AND FLOTATION SYSTEM

摘要

A weir skimmer (1) for removing a floating liquid ("first liquid" exemplifie d in this abstract by floating oil) from the surface of another liquid of high er density ("second liquid" exemplified in this abstract by water) comprising: i) an outer vessel (2) the rim (3) of which is adapted to act as a first weir t o separate from the surface of the body of the second liquid and to admit into the vessel (2) floating oil together with a supporting layer of water; ii) a n inner dish (4) located within the outer vessel (2) with its rim (5) spaced from the first weir rim (3) and adapted to act as a second weir to separate from an underlying mass of water within the interior of the outer vessel (2) and to admit into the inner dish (4) floating oil together with a supporting layer of water; iii) aperture means (6) located in the lower part of the inn er dish (4) communicating with the interior of the outer vessel (2); iv) apertu re means (10) communicating between the interior of the outer vessel (2) and it s exterior. Buoyant support for the weir skimmer device (1) during use is provided by a plurality of outwardly located flotation units exemplified in the drawing accompanying this abstract by flotation unit (11). Each flotatio n unit (11) is connected to the weir skimmer device (1) by associated supportm eans, e.g. a rigid support arm (12), each arm being pivotally connected at (13) to the skimmer device (1).