Extraction device, useful for floating sludge, oils and fats in small water treatment plants, comprises pump with flexible pump feed line, suction element, floater, which holds the suction element, and two suction regulatory openings

摘要

Extraction device (1) comprises: a pump (2) with a flexible pump feed line (3); a suction element, which is vertically adjustably mounted to a suspension device with a rigid pump discharge line (4) having a carrying handle (5) and a variable locking element via a height adjuster-hinge of a height adjuster; a floater, which is vertically, horizontally and adjustably mounted on the suction element and which holds the suction element in a working position in relation to a water surface; at least two suction regulatory openings. Extraction device (1) comprises: a pump (2) with a flexible pump feed line (3); a suction element, which is vertically adjustably mounted to a suspension device with a rigid pump discharge line (4) having a carrying handle (5) and a variable locking element via a height adjuster-hinge of a height adjuster; a floater, which is vertically, horizontally and adjustably mounted on the suction element and which holds the suction element in a working position in relation to a water surface; and at least two suction regulatory openings, which are introduced into the suction platform of the suction element, where the sum of the cross sections of the suction regulatory openings is smaller than the cross section of a suction opening of the suction element, according to the patent application . A jet tube is arranged on a suction edge of suction platform of the suction element below the water surface of biologically treated waste water. The jet tube is closed with a left jet tube closure and a right jet tube closure. The jet tube has at least three jet tube nozzles for dividing the floating sludge, oils and fats on the water surface. A jet tube-supply line is arranged between the jet tube and the suspension device with a rigid pump discharge line.