RU1797947C - Cartridge filter for liquids - Google Patents

Abstract

The invention relates to the field of water supply and sanitation. The filter comprises a housing with nozzles, divided by partitions into three chambers, filter elements, and a device for their regeneration. The filtering elements are made of elastic porous material and are located between the partitions, and in the upper partition are rigidly fixed, in the lower one they are freely placed. Inside the filter elements are flexible conductive electrode rods. The upper baffle moves around the shaft, the lower along the shaft. The filter is equipped with a container with a powder filtering material connected to the nozzle for feeding the iodine. 2 s.p. f-ly, 1 ill.

Description

The invention relates to a technique for purifying a suspension of liquids and can be used in the chemical, metallurgical, paper, food and other industries for the purification of river, industrial and recycled water, industrial waste water, etc.

The goal is to increase the degree of purification of the liquid and increase the performance of the filter, improve the conditions, improve the quality of regeneration of the filter elements and reduce the flow rate of wash water.

The drawing shows a General view of the filter in section.

The filter consists of a housing 1 with spherical end faces and a supply 2 and outlet 3 nozzles.

The housing 1 in height is divided by two horizontal 4 and 5 partitions into three chambers: the lower chamber 6 of the source fluid, the working chamber 7 and the chamber 8 of the filtrate.

Between the partitions 4 and 5, hollow filtering elements 9 of an egg-shaped form are installed in their openings, in the walls of which flexible conductive rods 10 are connected, connected to a constant current source.

The filter is equipped with a device for the regeneration of the filtering elements 9, made in the form of a shaft 11 mounted along the axis of the housing 1, connected to a rotation drive 12, and a flushing box 13.

The lower baffle 4 with holes 14 is connected to the pressure pipe 15 and has a mechanism for moving along the shaft, made in the form of vertically moving rods 16.

The upper partition 5 is provided with a mechanism for moving around the shaft in the form of a logic element 17. associated with. rotation drive 12.

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The filter is equipped with a container 18 with powder filtering material connected to the supply pipe of the source liquid 2. Holes 19 are made in the upper ends of the filtering elements 9.

the filter works as follows. The liquid to be cleaned initially with the addition of auxiliary filtering material flows under pressure through the pipe 2 into the housing 1 into the chamber 6. Next. through the holes 14 in the perforated partition 4, the liquid passes into the working chamber 7.

The liquid is filtered through the outer surface of the filter elements 9 by washing a layer of filter aid thereon. Flexible and conductive rods located inside the elements and connected to a constant current source contribute to a better and faster washing up of the layer of auxiliary filtering material on the surface of the filtering elements. The particles of the auxiliary filter material have a negative charge. When a positive charge is created on the surface of the filter elements, they are quickly washed up and better retained.

Then the fluid enters the chamber 8, from where it is discharged through the pipe 3,

During the filtering process, clogging of the filter elements occurs. 9. The regeneration of the filter elements 9 is carried out one at a time. Turn on the rotation drive, 12, turn the box 13 and set it under the unit. filter element -9. Water from the filtrate chamber enters the cavity of the filter element 9, disrupts the pollution and is removed along with them through the duct 13 and the cavity of the shaft 11 into the sewer. Then, the box 13 is moved to another filter element 9 and regenerated.

When pollution is deposited on the surface of the elements 9 by a command from the differential pressure sensor (not shown), the logic element 17 instructs the actuator 12 to rotate the baffle 5 to a small angle. The pores of the filter element 9 are compressed and squeezed out of the pollution. At the command of the differential pressure sensor, a logic element 17 instructs the actuator 12 to rotate the partition 5 to its initial position.

The regeneration of the filter elements 9 is also carried out with vertical

moving (by pistons 16) a horizontal perforated partition 4 made of elastic material inflated by air from the pressure duct 15 and tightly enclosing the ends of the filter elements 9.

The filter can be used with an alluvial layer of filter material or without it, which increases the efficiency

filter and expands the range of application. . The positive effect is also associated with the possibility of changing the pores of the auxiliary filter material during operation of the device and by exposure to an electric field.

. FORMULA AND SECTION

Claims (3)

1. Cartridge filter for cleaning liquid, comprising a housing with bottoms, divided by height with perforated fumes in the chambers of the source liquid and filtrate and the working chamber, filter elements with open ends, located in the openings of the partitions, a regeneration device, comprising a shaft connected to a rotation drive, and a source fluid supply pipe, wherein, in order to increase the degree of purification of the liquid, and increasing the filter performance, improving service conditions and improving the quality of regeneration of the filter elements, the filter elements are made in the form of an egg-shaped material from elastic porous material, while the lower ends of the filter elements are freely spaced in the openings of the lower one. partitions, filter elements are made with flexible conductive rods located inside them, connected to a constant current source, partitions are made with a movement mechanism along the shaft, the bottom is hollow of elastic material, connected to a pressure duct, the filter is equipped with a powder filtering container material connected to the water supply pipe. 2. The filter according to claim 1, which is related to the fact that the movement mechanism 1 of the upper partition is made in the form of a logic element associated with a rotation drive. 3. The filter according to claim 1, with the exception that the mechanism for moving the lower partition is made in the form of vertically moving pistons.