SU1123131A1 - Water cleaning filter - Google Patents

Abstract

1.FILTER FOR CLEANING WATER, continuous, comprising a housing with a lid and a bottom, a floating filtering charge, distribution means with a nozzle for supplying purified water, installed in the upper part of the body along its axis, a main nozzle with an ejector for outputting the regeneration load, attached to the lid, the shell with a pipe to drain the wash water. connected to the bottom, and the hydraulic overload pipeline connected to the pipe with the ejector and tangentially to the shell, characterized by the fact that, in order to improve the quality of water purification and regeneration of the load, it is provided with additional nozzles with ejectors, the distribution means is perforated obrat.atnogo cone with holes in which the main and additional nozzles with ejectors are placed, while the lower edges of these nozzles are located below the generatrix of the cone and parallel to it. 2. The filter according to claim 1, wherein the angle at the apex of the cone is 30-60. 3. The filter according to claim 1, characterized in that the perforation of the inverse cone made in the form of rectangles with an increasing area from the top to the base of the cone. 4. Filter pp.1, characterized in that all the nozzles with ejectors are connected to the hydraulic overload pipeline by means of a collector.

Description

The invention relates to filters for the purification of water from suspended solids and petroleum products and can be used in the metallurgical, chemical, mining and other industries.

A continuous filter is known, comprising a housing with inlet and outlet communications and a floating load, a distributor and a drainage system, a nozzle for discharging filtering material and an ejector installed in the upper part of the housing, a hydraulic overload pipe connected to the ejector, and a regeneration device.

The disadvantage of the described filter is low, the efficiency of cleaning due to the incomplete use of the loading volume associated with the unevenness of the latter for regeneration and the formation of stagnant zones.

The closest in technical essence and the achieved result to the invention is a countercurrent continuous filter consisting of a body with a lid and a bottom, a floating filtering load, distributing source water bodies located in the upper part of the body along its axis and made in the form of two coaxially innovated cylinder cones; drainage system, pipe with ejector for water removal of contaminated material on the reg. The installation is installed in the upper part of the filter and connected by hydraulic piping with a regeneration device installed in the lower part of the filter, made in the form of a shell with a socket and a pipe for discharging wash water. The water to be purified is fed into the distribution system of the filter, pass into the gap between the cylinders with; cones, filtered from top to bottom through a layer of continuously moving upward floating load, collected by the drainage system and discharged from the filter. However, this filter has insufficient cleaning efficiency, requires significant capital expenditures, since the switchgear occupies a large part of the apparatus volume and there is an insufficient amount of filter charge in the actual working area. Significant distribution sizes

devices increase the consumption of materials of the device as a whole.

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

This is achieved in that a continuous water purification filter comprising a housing with a crush and

bottom, floating filtering load, distribution means with a pipe for supplying purified water, installed in the upper section of the housing 1 along its axis, the main pipe with an ejector dp output loading for regeneration, attached to the crush, recess of the water outlet, to the bottom, and the hydraulic overload pipeline, connected to the nozzle with the ejector and tangentially to the shell, is equipped with additional nozzles with the ejectors, the distribution means YOU are perforated in the form of selfless cone with holes in which are placed the main and branch pipes with the additional ejectors, wherein the lower edges of the nozzles are arranged below the cone and parallel thereto. In addition, the angle at the apex of the cone is 30-60 °, the perforation of the inverse cone is made in the form of rectangles with an increasing area from the apex to the base of the cone, two nozzles with ejectors are connected to the hydraulic overload line by a collector. Figure 1 shows a longitudinal section of the filter; figure 2 - section aa in figure 1. The filter consists of a housing 1 with an inlet 2 installed in the upper part of the filter; a drainage device 3 located in the lower part of the filter, distribution cone 4 connected to the source water supply pipe 2, pipes 5 for the regeneration load on the regeneration installed in the upper part of the filter, the tops of which are fitted with ejectors 6 and connected to the hydraulic overload pipe 7, the shells 8, installed in the lower part of the filter, in which the hydraulic overload pipe 7 is tangentially connected, the branch pipe 9 of the flushing water outlet, the slots 10;

Ot angle at peak

cone 4 is 30-60 it is necessary for

о. Providing drainage along cones of loading into regeneration zones. At the same time, the upper and lower limits of the angle are selected from the condition of using a floating polystyrene foam load of various sizes (O, 5 to 5 mm) and different specific gravity, for which the angle of repose in a water medium is within the specified limits (30-60 ° ). -. ..

When the inclination of the generatrix is less than 30 ° in the central part 4, the sample forms stagnant zones and the load does not enter the regeneration zone, which leads to its clogging, decrease in cleaning efficiency and increase in pressure loss in the filtering load. When inclining a generatrix of more than 60 °, the switchgear occupies a significant part of the filter, and in order to maintain the required quality of cleaning, it is necessary to expand the working area of the apparatus, which increases the capital cost of fabricating the filter. . . The filter works as follows. The purified water through the nozzle 2 is fed into the distribution device, made in the form of an inverted perforated cone, is evenly distributed over the entire filter area, filtered downwards through a continuously moving countercurrent floating load. The purified water is collected by the drainage device 3 and discharged from 4 aster. The regeneration is carried out simultaneously with the filtration process. The contaminated filter load is taken from the nozzles 5 with the ejectors 6 and is directed through the pipeline 7 to the bottom of the filter. Pass through the pipeline 7 hydro overload, loading due to hydrodynamic forces

the flow is washed off. Washed load with wash water is fed into the shell 8, in which as a result of the centrifugal force arising from the tangential introduction of the polystyrene foam mixture, there is a rapid release of the solid phase of contaminants and their removal with the wash water through pipe 9.

Launched granules load float into the working area of the filter form. filter-out and sub-drainage protective layers. The upward-moving load is soaking up the contaminants, having risen, is selected again for regeneration. In comparison with the prototype, the installation of nozzles for outputting the regeneration load below the switchgear improves the quality of cleaning, since the regeneration of the filter load is selected for regeneration . the places where contaminants accumulate the most. The use of several (at least W), small ejectors when outputting the load from the filter instead of one large increases regeneration efficiency due to a more complete filter loading load on a heap. Furthermore, this solution of the regeneration device reduces the height of the produced room, i.e. . reduces the capital cost of cleaning. . . In the proposed device, perforations {qi or rectangular slots in the cone are designed in such a way that the same amount of water passes through a unit cross-sectional area of the filter. This is achieved by increasing the chuo crack area from center to periphery. This eliminates the formation of strong turbulent eddies, which would violate the filtering mode.

Claims (4)

1. A FILTER FOR WATER CLEANING, continuous operation, comprising a housing with a lid and a bottom, a floating filter load, a dispenser with a nozzle for supplying purified water, installed in its upper part along its axis, the main nozzle with an ejector for outputting the charge to regeneration, connected to the lid, a casing with a nozzle for draining the wash water connected to the bottom, and a hydraulic overload pipe connected to the nozzle with an ejector and tangentially to the casing, which is different in that, in order to increase the quality of ETS water purification and regeneration load, it is provided with additional nozzles with ejectors, the distributor means is a perforated inverse cone with holes in which are placed the main and branch pipes with the additional ejectors, wherein the lower edges of the nozzles are arranged below the cone and parallel thereto. 2. The filter according to claim 1, with respect to the fact that the angle _o at the apex of the cone is 30-60. 3. Filter pop. 1, characterized in that the perforation of the inverse cone is made in the form of rectangles with an area increasing from the top to the base of the cone. 4. Filter pop. 1, characterized in that all the nozzles with ejectors are connected to the hydraulic overload pipe through the collector.