RU1804886C - Water filter - Google Patents

Abstract

Use: at waterworks preparing water for household and drinking and industrial needs. SUMMARY OF THE INVENTION: The central distribution chamber is divided by a horizontal partition into the lower section of the source water and the upper section, which is divided by a cylindrical insert mounted axially to the body into partially clarified and coagulated water chambers. The pulp guide in the upper part is equipped with a cylindrical expander, a reflector in the form of a cone-shaped shell, made with an ellipsoidal flanging. A divider is installed above the expander, made in the form of an inverse cone with an elliptical generatrix. 1 ill.

Description

The invention relates to a liquid purification technique and is intended for use in waterworks preparing water for household and drinking and industrial needs.

The purpose of the invention is to improve the quality of water purification and provide hydraulic sorting of granular material.

The drawing shows a section of a filter for water purification. The filter consists of a cylindrical housing 1 with a conical bottom and a cap with a neck, a source water chamber 2, source water distributors 3 and coagulated 4, prefabricated systems of the first filtrate 5 and clarified water 6, cylindrical vertical 7 and horizontal 8 partitions and a chamber partially clarified water (first filtrate) 9. There is a hole in the annular distribution pipe of the injected reagent 10, a chamber of water treated with reagent 11, a granular filter load 12, an annular horizontal partition 13, a support e tubular stands serving simultaneously as collectors of the first filtrate 14 and clarified water 15, a mixer 16 and a washing chamber 17. The hydraulic elevator 18 is equipped with a slurry conduit 19 with an expander 20. The washing chamber includes a divider 21, a reflector with a cone-shaped shell 22, an annular chamber for collecting washing water 23 , an annular collecting chute of washing water 24. The water purifier - the filter has pipelines for supplying source water 25, bypassing the first filtrate 26, supplying washing water 27. drainage of clarified water 28, discharge, washing water 29, supply of reagent to distribution hole pipe 30.

The filter works as follows.

Source water without treatment with reagents through the pipe 25 enters the chamber 2, is distributed between the plates of the lower distribution system 3, passes with

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at a decreasing speed in the radial direction through the lower layer of slowly lowering filter material 12. Partially clarified water is collected by the lower assembly, system 5, combined by two supporting tubular posts 14 and discharged through the bypass pipe 26 into the chamber 9. After mixing partially clarified water with a reagent supplied through pipes 30 and 10 into the mixer 16. water enters the chamber

11 and further through the distribution system 4 into a layer of slowly lowering filter material 12, the grain size of which decreases radially from the distribution to the collection system. The clarified water is collected by annular hole tubes 6 located under the peaks of the louvre system and is discharged through the supporting tube posts 15 into the clean water tank.

In order to prevent flocculation in the water after mixing it with the reagent, the volume of the chamber 11 is taken to be minimal. In this case, the process of coagulation of suspension occurs directly in the layer of filter material.

Dirty filter media

12 is continuously withdrawn from the bottom of the filter by a hydraulic elevator 18 and through a slurry conduit 19 in the form of a mixture of water and sand is supplied to the washing and hydraulic sorting chamber 17. Water from the expander 20. in which due to a decrease in the flow rate there is an additional washing, enters the chamber 17, when In this case, the upstream jet by the divider 21 is converted into a fan upstream. When exiting the expander, the jet velocity drops. The largest grains of the load are deposited in close proximity to the walls of the expander, smaller grains reflecting from the elliptical surface of the divider 21 fall in the space between the expander and the cone-shaped shell 22. As the wash water stream moves away from the expander, its speed slightly increases in the space between the surface of the divider and rtbortovka cone-shaped shell, which helps to increase

Suspension flow conveying ability. Outside the flanging of the shell, the flow loses speed, and conditions are created for the loss of the smallest loading grains. Wash water rises to the prefab

chamber 23 and through flooded holes

enters the prefabricated annular groove 24, from

which is discharged through a pipe 29.

The advantage of the claimed filter with

continuous washing of the filter material is compact due to the combination of two cleaning stages (reagent-free and contact-reagent) in one housing, reduced reagent consumption, high. the technological effectiveness of water purification and sorting processes, the expansion of the scope of the filter with contact coagulation for the content of suspended matter in the source water, and ease of operation.

Claims (1)

The claims Water purification filter comprising a housing, perforated vertical baffles installed therein, dividing the interior of the housing on the annular peripheral and central chambers, a granular load placed between them, the horizontal horizontal partition installed in the middle part of the peripheral chamber, the washing flush chamber, the hydraulic elevator in the central chamber with a slurry pipe made in the upper part with a cylindrical expander, a divider with a reflector and reagent mixer, with the exception of the fact that, in order to improve the quality of water purification and ensure hydraulic sorting of granular material, it is equipped with a ring a horizontal partition installed in the middle part of the central chamber and dividing it into a lower section for source water and an upper section for partially clarified water, the upper section is equipped with a vertical cylindrical partition mounted axially to the body, the divider is made in the form of a return cone with an elliptical generatrix, and a reflector made in the form of a cone-shaped shell with an ellipsoidal flanging.