SU1819655A1 - Water filter - Google Patents

Description

The invention relates to a liquid purification technique, is intended for water treatment and can be used at waterworks for agricultural water supply, preparing water for household and drinking needs, as well as for water softening in small steam power plants.

The purpose of the invention is to improve the quality of cleaning.

The drawing shows a section of the proposed filter.

The filter includes a housing 1, a source water chamber 2 located in the lower part of the outer side of the housing 1, louvered partitions 3 and 4, perforated water-permeable partitions 5 and 6, covered with a filtering synthetic fabric. There is a chamber of partially clarified water 7, the clarified water chamber 8 is located above the source water chamber 2. The clarification chamber 9 is filled with a filtering granular load 10. and the softening chamber 11 is filled with cation exchanger 12. The ejector 13 serves to soften the filter load into the built-in washing chamber 14. Funnel 15 serves to select the depleted cation exchanger for regeneration in a remote regenerator 17, and the ejector 18 transports the regenerated cation exchanger to the softening chamber 11. There are pipelines for supplying initial water for clarification 19. for washing the charge 20, reagents 21. clarified water for additional washing of the charge 22, for transporting the depleted cation exchanger into the regenerator 23, the regenerated cation exchanger into the softening chamber and for softening 24, into the collection tank 25, softened water into the tank 26, discharge of the wash water 27.

The filter works as follows.

The purified water through the pipeline 19 enters the source water chamber 2, is distributed over the intervals between the louvred partition plates 3. It passes in the radial direction to the chamber 7 through

1819655 A1

1819655 4 lower. slowly descending layer of filter media 10 and perforated partition 4. Partially clarified water in chamber 7 is mixed with reagents introduced into the chamber through pipeline 21, 5 is distributed over the intervals between the plates of the upper louvered partition 5, passes radially through the upper layer of the filter media and perforated the partition 6 10 to the water clarification chamber 8, part of it is diverted for softening into the chamber 11, and the rest through the pipeline 25 into the collection tank. The contaminated filtering charge is taken by the ejector 13 from the lower part of the 15 crucible chamber 9 and fed upward into the washing chamber 14, where it is washed and again enters the clarification chamber. The flushing water from the flushing chamber through the pipeline 27 is discharged to the discharge. 2θ

Part of the clarified water to be softened through the pipeline 24 enters from the bottom up through the chamber 11, while maintaining in a suspended state the loaded cation exchanger 10, which is continuously discharged through the funnel 15 and the ejector 16 into the remote regenerator 17. The regenerated cation exchanger is sucked in by the ejector 18 installed on pipeline of clarified water 24 supplied for softening. 30 together with which it returns to the softening chamber 11. The softened water through the pipeline 26 is discharged into the mixing chamber with non-softened water.

Thus, the use of a filter with a double radial passage of clarified water through a continuously washed filtering bed and from bottom to top through a layer of suspended continuously regenerating cation exchanger, as well as softening only a part of the treated water, allows increasing the cleaning performance per unit of occupied area and increasing the efficiency of cleaning.

Claims (1)

Claim A filter for water purification, including a cylindrical body with a conical bottom and a lid, perforated axial partitions installed in it with a filter loading placed between them, pipes for supplying a reagent and for supplying and removing water, heating topics. what. in order to improve the quality of purification, it is equipped with a water softening chamber made in the form of a cylinder filled with a cation exchanger and installed along the axis of the body with a conical cover and a bottom and nozzles attached to them, respectively, to drain and supply water, the chamber has an ejector for unloading the cation exchanger for regeneration, a distributor , made in the form of a hollow body installed above the water supply pipe, and connecting the softening chamber to the ejector, a pipeline with a funnel located in the middle of the softening chamber.