SU1122337A1 - Water purification filter - Google Patents

Abstract

1. FILTER FOR CLEANING WATER, comprising a housing with supply and discharge connections, a filtering granular charge, an axially installed in the housing pipe for supplying washing water and connecting pipes with L-shaped nozzles, which are different in that the quality of regeneration of the load from polyethylene crumbs with a specific weight, a lower specific weight of water, the nozzles are attached to the nozzles using elastic couplings and provided with perforated reflectors with a central hole, and a pipe for supplying wash water is installed with the possibility of vertical reciprocating movement.

Description

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2. Filter POP.1, it is distinguished and it is warm that a grid with an additional axial tube is installed horizontally above the load.

which is located in the lower part of the axial pipe for the supply of wash water and is attached to it with a mod. spring.

The invention relates to the field of water supply and can be applied to purify water.

Known pressure filter with a floating load, the method of regeneration of which includes the rotation of the load, non-uniform in particle size, around the axis of the filter when the flow of wash water. To speed up the regeneration process, the load is rotated periodically at a linear speed, decreasing in the direction of flow of positive water - 1.

The disadvantage of this filter is low regeneration efficiency due to the fact that small fractions of the load (less than 1 mm) with adhering particles of soils lose the ability to float and sediment a dense layer at the bottom of the filter. To wash them, you need to move shortened blades.

. The closest to the invention in its technical essence is a water purification filter, comprising a housing divided into sections, supply and discharge connections, a filtering charge and means for regeneration in the form of an axially mounted pipe with rotating L-shaped branch pipes. nozzles 2.

A disadvantage of the known filter is the inefficiency of using it for filter loading with a specific gravity less than one.

The purpose of the invention is to improve the quality of the regeneration of the filter load of polyethylene chips with a specific gravity, less specific gravity of water.

This goal is achieved by the fact that in a water purification filter, comprising a housing with an inlet pipe, filtering a granular load, axially mounted in a housing. All pipes for supplying industrial water and closed pipes (pipes connected to the pipe with L-shaped nozzles, nozzles attached to the pipes using elastic couplings and fitted with perforated reflectors with a central hole, and a pipe for supplying flushing water are installed with the possibility of forward movement.

In addition, a horizontal grid with an additional axial tube is installed above the load, which is located in the lower part of the axial tube for supplying wash water and is attached to it by means of a spring,

Figure 1 shows the filter during filtration; figure 2 - the same, in the process of regeneration; in FIG. 3, a schema of the p. generating device; figure 4 -. L-shaped nozzle with a conical perforated reflector with a central hole ..

The filter consists of a housing 1 in which an additional axial pipe 2 is placed, and a discharge pipe 3 is mounted in the bottom of the case to drain the filtered water. Inside the casing there is a bridging lattice 4 with a filtering granular charge 5 located on it, made of polyethylene crumb with a specific weight less than one and a particle size of 0.15-3.00 mm. The load is held by the movable limiting grate 6. Inside the filtering bed, a conical perforated reflector 7 is mounted with a central hole, mounted on an L-shaped nozzle 8, which is connected to the nipple 10 on top of the body. A drain tube is mounted on top of the case. 11 3 and an axial tube 12 for the bottom of the wash water, mounted on the lid 13 by means of a threaded coupling 14 in the upper part of the housing is placed under the inlet 15, and below: a movable mesh is a connecting spring sixteen, . The filter for water purification works as follows. During filtration, water is supplied through a supply pipe 15 into housing 1 (Fig. 1). The passage through the movable restriction grid 6, filtering the granular load 5 from polyethylene chips, and the fixed limit grid A, the filtered water is discharged through the discharge pipe 3 to the collecting tank. Before regeneration, the flow of water into the filter housing is stopped. The withdrawal of the 8th tube 3 overlaps and, by rotating the threaded sleeve 14, the limiting grate 6 together with the additional axial tube 2 rises to the upper position (Fig. 2) to increase the volume of the chamber in order to decompress the particles with a granular load. In this case, the filtering charge mainly accumulates in the upper part of the chamber within the regenerating device. Thereafter, rinsing water is supplied through an additional axial pipe 2 through the axial supply pipe 12 to the L-shaped nozzles 8. A passage through the movable restriction grid 6, the water is drained to the sewage through the drain pipe 11. The regenerating device (Fig. 3) provides an intensive transfer 74 filtering granular load. In addition, an additional axial tube & 2, when the washing water is fed into it, the oscillatory movements in the vertical plane and the L-shaped nozzles 8 connected by elastic couplings 9 to the nozzles 10 also perform oscillatory movements that increase the area affected by the washing water. The different length of the nozzles ensures the intensity of mixing of the filtering load 5, including the fine fraction, throughout the volume of the material, and the presence of a conical perforated reflector 7 sprays the jet at the outlet of the L-shaped nozzle 8, excluding the formation of local seals in the loading volume, ensuring at the same time the collision of particles of the filter material. and the slipping of the particles entrained by the jet through the holes in the reflector. This ensures effective separation of contaminants from particles of filter material. The advantage of the proposed design is that the constructive shape and location of the L-shaped nozzles with conical perforated reflectors in the complex create a turbulent circulation of the floating load, which generally ensures fast and high-quality washing of the material load with a specific weight, lower specific weight of water, and the spring-loaded fastening of the device with nozzles and the elastic fastening of the L-shaped nozzles on the nozzles expand the zone of influence of the washing jets and the intensity of the filter. material.

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Claims (2)

1. FILTER FOR WATER PURIFICATION, comprising a housing with inlet and outlet branches, a filter for granular loading, an axially mounted pipe for supplying washing water and nozzles attached to the pipe with L-shaped nozzles, characterized in that in order to improve the quality of regeneration of the load from the crumb of polyethylene with a specific gravity lower than the specific gravity of water, the nozzles are connected to the nozzles by means of flexible couplings and equipped with perforated reflectors with a central hole, and the pipe for supplying water f installed vertically vozvratnopostupatelnogo displacement. Fia. 1 1 122337 2. Filter by π. 1, it is distinguished by a щ щ тек s tech that a grill with an additional axial pipe is horizontally installed above the load, which is located in the lower part of the axial pipe for supplying washing water and is connected to it by a spring.