SU1754154A1 - Water filter - Google Patents

Abstract

Usage: in natural water purification systems, at water supply stations preparing water for drinking and industrial purposes. SUBSTANCE: device comprises annular, central and peripheral chambers formed by vertical louvre partitions, between which a filtering granular charge is placed. A horizontal annular partition is installed in the peripheral chamber with the formation of a lower chamber for supplying source water and an upper chamber for collecting filtrate. A reagent mixer and a hydroelor are placed in the central chamber. An annular drainage system is installed in the upper part of the device. 1 il.

Description

(L

WITH

The invention relates to a technique for the purification of liquids and is intended for use in natural water purification systems and can be used in waterworks preparing water for drinking and industrial purposes.

A water purification filter is known, comprising a housing, perforated partitions mounted therein, dividing the interior of the housing.

However, this filter does not achieve a high degree of water purification and sufficient regeneration of the load.

The purpose of the invention is to improve the quality of water purification and regeneration of the load.

To this end, the water purification filter is provided with an annular horizontal interlock installed in the peripheral chamber and separating it into the lower chamber for supplying raw water and the upper one for collecting the filtrate, with a reagent mixer.

placed in the middle of the height of the central chamber, and installed in the upper part of the body annular drainage system.

The drawing shows the filter section.

The filter includes a housing 1, divided by vertical louvered partitions 2 and 3 into sections of the upper 4, middle 5 and central 6. Zernist filter loading 7, annular horizontal partition 8 divides the outer section into the lower 9 and upper 10 chambers. There are also hydraulic elevator 11 with pulpway 12, primary washing chamber 13 and additional washing 14 of the filtering load, collecting contaminated washing water 15. The filter is equipped with a cap drainage system 16, channels for even collecting and draining washing water 17, a reagent mixer 18 and source water supply pipes 19, wash source water 20, clean wash water 21, reagents

AND

2

22, discharging filtrate 23, washing contaminated water 24, emptying water 25, discharging load 26.

The filter operates in the source water purification mode as follows.

The purified water through the pipeline 19 is fed into the chamber of the source water 9, after passing the lower layer of the granular filtering load 7, being cleaned of coarse impurities, enters the lower part of the central section b, into which the reagent is fed through the pipe 22. Pass along with the reagent through the mixer 18, the water enters the upper part of the central section. Next, the water treated with the reagent is filtered through the upper layer of the filtering charge 7 by the method of contact coagulation, collected in the collection chamber of the filtrate 10 and transferred via pipeline 23 to the clean water tank for disinfection.

Regeneration of the filter loading is carried out continuously.

The source water through pipeline 20 is fed into the hydraulic elevator, the mixture of source water with filter loading through the slurry line 12 enters the primary washing chamber 13. At the outlet of the slurry line 12, the outgoing stream of pulp with a diffusers with a baffle plate is transformed into a horizontal spreading. From the radial flow, as a result of a drop in the speed of the filter loading grain, it is deposited in the pre-flush chamber 14, in which an up-stream of clean decontaminated water supplied from the drainage system is carried out. The washed load is deposited in the Eastern part of the middle section 5. The contaminated wash water rises into the collecting chamber 15 and is poured into the trough 17 through the flooded holes and discharged to the discharge through the pipe 24.

Thus, in the purification mode, the initial water passes through the filter loading layer containing coagulated and trapped suspension in the upper filter, which contributes to an increase in the effect of non-reagent water clarification.

By varying the speed of movement of the filter charge from top to bottom along the height of the filter, a predetermined degree of water purification is achieved at a high filtration rate and a significant reduction in the consumption of reagents.

Claims (1)

Claims of the invention A water purification filter comprising a housing, perforated vertical partitions mounted therein dividing the inner space of the housing into an annular peripheral and central chambers placed between them a granular load installed in the central chamber hydraulic elevator, pipelines for water supply and removal, characterized in that, in order to improve the quality of water treatment and regeneration of the load, it is provided with an annular horizontal partition installed in the peripheral chamber and separating it into the lower chamber for supplying the source water and the upper collecting the filtrate, a reagent mixer, placed in the middle height of the central chamber, and an annular drainage system installed in the upper part of the body. # CHE + & G + U 25