DEVICE FOR PURIFICATION OF NATURAL AND SEWAGE WATERS FROM MECHANICAL ADMIXTURES Russian patent published in 2014 - IPC B01D25/00 B01D29/56 C02F1/62 

FIELD: chemistry.

SUBSTANCE: device contains pipelines, pumps and a settler in the form of a rectangular box, divided into sections by vertical partitions. The box is divided into not fewer than four isolated sections, connected to each other successively by the pipelines with the pumps. In the second, third and fourth sections vertical closures with a lower overflow are additionally fastened on the upper wall of the box. In each section a filtering element in the form of a cylindrical perforated cup with through openings is placed with a possibility of moving by means of an eccentric mechanism, a cylindrical lid with the central opening is rigidly fastened on the upper part of the filtering element. Bearing elements with placed on them compression springs, which contact with the lid, are rigidly fastened on opposite vertical partitions of each section under the lid. The filtering element of each section is connected through the pipeline to the following section. In the first - third sections the filtering element is made in the form of the cylindrical perforated cup with through openings, on the side of the cup surface of the first, second and third section the openings are located spirally, on the side surface of the cups of the second and third sections between the openings on the surface a wire is wound, on the side surface of the third section cup between the openings rollers-projections are rigidly fastened, and the filtering element of the fourth section is made of plates, fastened along the diameter on the upper lid and forming slit-like clearances with the wire spirally wound above the clearances.

EFFECT: improvement of purification.

2 cl, 1 dwg