SU1414416A1 - Filter for purifying liquids - Google Patents

Abstract

The invention relates to filters for the purification of liquids from impurities. The filter includes a housing 1 filled with granular filtering material 2 located on the supporting grid 3, nozzles 4 and 5 for supplying and discharging liquid, means for removing contaminated filtering material including a nozzle 7 for precipitating, axially located inside the housing, and scrapers 11 with a transverse groove 13 at the base. Attached to the drive means dp of removing contaminated filter material is provided with a lid 8, which has a protrusion 10 on one side, and an ac side is hinged to the nipple 7 on the other side. The lid B is rotatably mounted in a horizontal plane, while the groove 13 on one scraper is located on a distance equal to the radius of the rivet and, on the other scraper, a distance equal to the two diameters of the rivet. The device ensures reliability of operation due to the periodic diversion of heterogeneous wastewater impurities in the filtration process. 1 pe. (L

Description

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The invention relates to filtering devices for filtering liquids and can be used to purify natural and waste waters from fine mechanical impurities and sediments.

The purpose of the invention is to provide the possibility of wastewater treatment from dissimilar impurities,

The drawing shows a filter for cleaning liquids, longitudinal section

The filter for cleaning liquids is a housing 1 filled with granular filtering material 2 located on the supporting grid 3. The waste water is supplied through the nozzle 4, after cleaning the waste water goes through the nozzle 5, the contaminants are removed through the nozzle 6 , KOTOpbDi in the area of the supporting grid 3 is connected to an axially located branch pipe 7 passing through the entire layer of filter charge. The branch pipe 7 has a cover 8, which is located on its end part with the help of tarnir 9. On the opposite side from GERD cover 9 has a projection 10 which serves for opening and closing krsh1koy patrub- ka 7, which is carried ripper scraper 11 from the actuator 12. Scrapers rippers are transverse groove 13, which alternately opened and then closed kryiku.

The filter for cleaning liquids works in the following manner.

Sewage water enters through pipe 4 into body 1 and passes through a layer of granular filtering material 2 and supporting grid 3. Purified water is discharged through pipe 5.

During the filtration process, the bulk of the accumulated suspended matter on the surface of the filtering material collates its pores in the upper thin layer, which reduces the filtering capacity of the entire filter.

Dn restoration of the filtering cn property periodically it is necessary to regenerate the filter in its upper thin layer by removing it. For this purpose, the actuator 12 is turned on, the scrapers 11 are installed in the upper thin layer of filter material 2, act on the protrusion 10, rotate the cover 8 relative to the hinge 9, open the axially located branch pipe 7, and throw a thin layer of contaminated filter material through it, which is then removed regeneration through pipe 6. On one scrub | The groove 13 is located at a distance equal to the radius of the lid, and on the other scraper at a distance equal to two diameters of the lid. With this arrangement, the groove 13 ensures that the cover 8 opens when the scrapers turn 540 °, i.e. 1.5 turns.

After removing the contaminated filtering material and closing the lid through the wastewater supply nozzle 4, the filtering material, which has undergone regeneration, is loaded with a volume equal to the removed one. The filter material supplied with purified water is evenly distributed over the surface of the filter.

Regeneration of a thin layer of filter material eliminates the deposited upper layer of suspended matter, which creates a major obstacle during filtration and leads to a significant loss of pressure.

The main regeneration involves washing the entire thickness of the filter material, is assigned upon reaching a significant loss of pressure or degrading the quality of the filtrate and is sealed with a reverse flow of water with compressed air,

In the proposed filter, the productivity of the filter cycle is increased due to the periodic removal of dissimilar impurities during the filtration process from wastewater.

Claims (1)

Invention Formula A filter for cleaning liquids, comprising a housing filled with filter material, means for removing a contaminated filter layer, including a nozzle and scrapers located axially inside the housing, connected to a drive, nozzles for supplying and discharging the original and purified liquid, such that in order to allow wastewater to be cleaned of disparate impurities, the means for removing the contaminated filtering layer is provided with a round lid installed rotatably in a horizontal position. oskosti and having .jU144I6 the protrusion on the peripheral part, and the stand equal to the radius of the lid, and on the scrapers have a transverse groove, and the spacer on the scraper is at a distance equal to one of the scrapers on the two different diameters of the shank.