SU1366178A1 - Filter for purifying water - Google Patents

Description

The invention relates to a device for the purification of liquids by filtration and reduces the consumption of wash water and increase the degree of regeneration of the filter loading. The body is made of two vertical hollow cylinders 1 and 2, connected by an arcuate section 3, in which an acoustic emitter 4 is placed. A drainage device 14 is placed in a nozzle 13 attached to the lower part of the arcuate section. When flushing, the load moves from one cylinder to another due to the supply of wash water to the cylinders 1 or 2 and the operation of the ultrasonic transducer 4. The influence of ultrasound and the intensive mixing of the load contribute to an increase in the degree of its regeneration. 2 Il.

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The invention relates to a device for the purification of liquids by filtration and can be used in various industries, in particular for the treatment of natural and waste waters.

The aim of the invention is to reduce the consumption of wash water and increase the degree of regeneration of the filter loading.

Figure 1 presents the filter ^! during filtration, incision; in fig. 2 - the same in the process of regeneration of the filter load.

The filter includes a housing made of two vertical hollow cylinders 1 and 2 connected by an arcuate section 3 in which an acoustic emitter 4 is placed, for example a cylindrical magnetostrictive emitter driven by electric current from source 5. The filtering load 6 is made of granular material with a specific weight of more than the specific gravity of water, for example crushed blast furnace slag or quartz sand, is located in the arcuate section 3 and in the lower part of both cylinders 1 and 2 of the filter. In the upper part of the cylinders, distributors 7 are installed, made, for example, in the form of perforated pipes, connected to pipes 8 and 9, respectively, supplying raw water and a node for washing with a three-way switch 10, and with pipe for discharging waste washing water 11 - a side switch 12. Lower a part of the arcuate section is provided with a nozzle 13, in which a drainage device 14 is arranged, made, for example, in the form of a mesh partition, a filtrate outlet nozzle with a valve 15 is placed under the partition.

The filter works as follows.

Before filtering the valves on the pipes 9 and 11 are closed and the switches 10 and 12 are installed in the position shown in Fig.1. Source 5 is off, and emitter 4 is not working. The source water through the pipe 8 through the switch 10 and the distribution device 7 enters the cylinders 1 and 2. Filtered through the granular load, the source water is cleared from suspended substances contained in it and through the drainage 14 is discharged through the pipe 15 under residual pressure to the consumer.

_c After the end of the filter cycle

the supply of source water through the pipe 8 is stopped and the valve on the pipe 15 closes. The switches 10 and 12 are set in the position

10 shown in figure 2. The valve on the nozzle 11 is opened. Wash water is supplied through the nozzle 9 with an intensity that provides for relative expansion of the load, for example

K on the 20-30th. With the help of the source 5, the emitter 4 located in the arcuate section 3 is introduced into operation.

In the process of regeneration, the load moves from cylinder 1 along the arc-shaped section 3 into cylinder 2, where it is liquefied and weighed.

Under the action of ultrasonic vibrations generated by the emitter.

4, extended loading grains are subjected to cleaning from debris and additional dynamic effects, contributing to its faster movement from one cylinder to another, due to the fact that

30 vibrations eliminate the mutual adhesion of the loading grains. The contaminants separated from the grains are dispersed and removed from the load with a stream of wash water.

35 Reducing the consumption of wash water occurs due to its more complete use as a result of supplying water for washing into one of the cylinders and draining spent washing water from the other cylinder, since the loading of both cylinders is regenerated with one volume of wash water. The increase in the degree of regeneration of the load is due to

45 intensive mixing of the entire mass of the load as a result of the turbulization of the water-sand flow when the load is transferred from one cylinder to another. This is actively promoted by vibration caused by the disturbing action of an acoustic emitter placed in an arcuate section.

The placement of the drainage device in the pipe attached to the bottom

55 parts of the arcuate section, allows during the filtering process to divert

purified water simultaneously from both cylindrical sections and during regeneration does not impede the movement

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loading parts from one cylindrical section to another. .

The filter design provides alternate water supply for flushing into the cylinder from the cylinders by appropriate installation of the switches 1 0 and 1 2.

At the end of the flushing, the water supply through the nozzle 9 is stopped and the valve on the nozzle 11 is closed. The switch 10 is set to its original position, the valve on the nozzle 8 is opened, and in the cylinders

1.2 feed water is supplied. The load is deposited, and as a result of the balancing effect of the pressure in both cylinders and the vibration generated by the radiator 4, the load level in both cylinders becomes equal to 20. The emitter 4 is turned off, the valve opens on

nozzle 15, and filtering is resumed.

Claims (1)

Claim A filter for water purification, comprising a housing made in the space of two vertical hollow cylinders connected by an arcuate section and filled with a filtering charge, drainage and distribution devices, inlet and outlet connections of the water to be cleaned and washed, in order to reduce the consumption of wash water and increase the degree of regeneration of the load, it is equipped with an acoustic emitter located in the arcuate section, and the lower part of the arcuate section is equipped with a pipe in which the drainage devices are located about.