CN115738455A

CN115738455A - Sewage filtering treatment device

Info

Publication number: CN115738455A
Application number: CN202211712567.2A
Authority: CN
Inventors: 曹阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-03-07

Abstract

The invention relates to a sewage filtering treatment device, which effectively solves the problem that a filter screen of filtering equipment cannot continuously keep high permeability; the technical scheme includes that the filter comprises a shell and a plurality of filter groups arranged in the shell, each filter group comprises a cylindrical filter cylinder, two ends of each filter cylinder are rotatably connected with two ends of the shell, a first partition plate with an arc-shaped cross section is arranged in each filter cylinder, the first partition plate, the inner wall of each filter cylinder and two end faces of each filter cylinder form a closed area in each filter cylinder, two second partition plates are arranged between each filter cylinder and the inner wall of the shell, the two second partition plates, the outer wall of each filter cylinder, the inner wall of the shell and two end faces of the shell form a closed area at the periphery of each filter cylinder, and impurities in the filter cylinders in the closed areas can be thrown out under the action of centrifugal force in the rotating process of the shell; the invention can realize the continuous cleaning of the whole filter screen in the filtering process, so that the filter screen is always kept in a high-permeability state, and the filter screen does not need to be stopped for cleaning even if the filter screen works for a long time.

Description

Sewage filtering treatment device

Technical Field

The invention relates to the field of sewage treatment equipment, in particular to a sewage filtering treatment device.

Background

The filtration is a basic and common procedure in the sewage treatment process, and can remove insoluble solids, sediments, floccules and other impurities in the sewage; the filter equipment has a common fault, namely the filter screen is gradually blocked by impurities, so that the permeability is poor, and the filter efficiency is continuously reduced, so that the filter equipment is solved by replacing the filter screen or regularly cleaning the filter screen;

the current clearance filter screen generally has clear scraping method and recoil method, and the clear scraping method is through the scraper blade, and the brush hair etc. is cleaned the face of meeting dirty of filter screen and is scraped, scrapes accumulational impurity on it, for example application number: CN202210735604.5 invention patent and application number: the invention patent of CN202010032174.1, etc., the cleaning method has the defects that only the indicated accumulated impurities can be scraped, but the impurities blocked in the mesh can not be scraped, and even the impurities can be pushed to the deep part of the filter screen during cleaning, so that the blockage is more serious; the backflushing method is to clean the filter screen from the back dirt surface regularly, and flush out impurities in the filter screen, for example, the application number: CN201611007011.8, patent and application number: CN201610373369.6, the back-flushing method has the disadvantages that back-flushing and filtering cannot be performed simultaneously, back-flushing must be performed by switching a pipeline, a valve or a filter screen assembly during back-flushing, that is, the filter screen stops filtering and then can perform back-flushing, regular back-flushing cannot maintain the permeability of the filter screen for a long time, and the permeability of the filter screen can be continuously reduced in a back-flushing period and cannot always maintain optimal filtering efficiency; there are also many devices that combine the scraping and backwashing methods, but the backwashing cannot be integrated into the continuous permeability of the filter screen during the filtration process.

Disclosure of Invention

The invention provides a sewage filtering treatment device, aiming at solving the problem that the filter screen of the existing filtering equipment cannot continuously maintain high permeability.

The technical scheme includes that the filter comprises a shell and a plurality of filter groups arranged in the shell, the filter groups are uniformly distributed on the circumference of the shell, a water inlet is formed in the end face of the shell, each filter group comprises a cylindrical filter cylinder, the two ends of each filter cylinder are closed, a water outlet is formed in the end part of each filter cylinder, the two ends of each filter cylinder are rotatably connected with the two ends of the shell, each filter cylinder can rotate in the shell while the filter groups revolve along with the shell, a first partition plate with an arc-shaped section is arranged in each filter cylinder, the relative position of the first partition plate and the shell is fixed, the first partition plate is parallel to the filter cylinders, the two side edges of the first partition plate are in contact with the inner walls of the filter cylinders, the first partition plate, the inner walls of the filter cylinders and the two end faces of the filter cylinders surround a closed area in the filter cylinders, two second partition plates are arranged between each filter cylinder and the inner wall of the shell, the two second partition plates are parallel to the filter cylinders, the two second partition plates are arranged at intervals, the outer side edges of the second partition plates are attached to and fixed to the inner wall of the shell, the inner side edges of the two partition plates are aligned with the outer wall of the filter cylinders, the closed area of the shell, the two partition plates, and the end faces of the shell are communicated with the end faces of the filter cylinders; both the closed areas inside and outside the cartridge are located furthest from the central axis of the housing.

The two ends of the shell are fixedly provided with first rotating shafts, the shell rotates around the first rotating shafts, and the water inlet is formed in the axis of the first rotating shaft at the front end and communicated with the inside of the shell.

The two ends of each filter cylinder are rotatably connected with the shell through a second rotating shaft, the two ends of the second rotating shaft extend out of the shell, the second rotating shaft is hollow and communicated with the interior of the filter cylinder, the hollow part of the second rotating shaft at the rear end is a water outlet, a cross rod is arranged at the axis of each filter cylinder, a first partition plate is fixedly connected with the cross rod through a first connecting rod, the two ends of the cross rod extend out of the shell through the hollow part of the second rotating shaft, and the two ends of the cross rod are fixedly connected with the first rotating shaft through the second connecting rod; and a sealing ring is arranged between the cross rod and the second rotating shaft at the front end, and the diameter of the drain hole is larger than that of the cross rod.

The first rotating shaft at the front end is sleeved with a first gear in an empty mode, each second rotating shaft at the front end is fixed with a second gear, the second gears are meshed with the first gears, and a third gear meshed with the first gears is fixed at the front end of the shell.

The filter cartridge consists of a cylindrical porous inner framework and a filter screen wrapped on the outer wall of the inner framework.

The side edges of the first clapboard and the second clapboard, which are contacted with the filter cylinder, are respectively fixed with a rubber plate which is jointed with the filter cylinder, and the rubber plate is in an arc shape with the same curvature as the filter cylinder.

A circular water collection cover is installed at the end part of the first rotating shaft at the rear end through a bearing and is fixed, a plurality of water outlets are buckled by the water collection cover, and a water drainage pipe is installed at the bottom of the water collection cover.

The first clapboard is provided with water through holes, and the water through holes can ensure that a small amount of purified water in the filter cartridge enters the inner closed area.

The shape of the inner wall of the shell is similar to the distribution position of the plurality of filtering components.

The invention can realize the continuous cleaning of the whole filter screen in the filtering process, so that the filter screen is always kept in a high-permeability state, and the filter screen does not need to be stopped for cleaning even if the filter screen works for a long time.

Drawings

Fig. 1 is a first perspective view of the present invention.

Fig. 2 is a second perspective view of the present invention, in which the water catchment cover is omitted to clearly show the structure of the rear end face of the housing.

Fig. 3 is a perspective view of the present invention, in which the side wall of the housing is omitted for clarity of the internal structure of the housing.

Fig. 4 is a perspective view of the present invention, in which the side wall of the housing is omitted for clarity of the internal structure of the housing.

Fig. 5 is a perspective view of the fifth invention with the side wall, rear end and one of the cartridges of the housing omitted for clarity in showing the positional relationship of the first partition and the second partition.

FIG. 6 is a rear view of the present invention, in which the water-collecting cover is made transparent in order to show the positional relationship between the water-collecting cover and the water discharge port.

Fig. 7 is a front cross-sectional view of the present invention.

Fig. 8 is an enlarged view of the position a in fig. 7.

Detailed Description

With reference to the attached drawings, the invention comprises a shell 1 and a plurality of filter groups arranged in the shell 1, wherein the shell 1 and the filter groups are all stretching bodies, central axes of the filter groups are all parallel, the filter groups are uniformly distributed on the inner circumference of the shell 1, a water inlet 2 is formed in the end surface of the shell 1, the shell 1 can rotate around the central axes of the filter groups, the filter groups synchronously revolve with the shell 1, each filter group comprises a cylindrical filter cylinder 3, two ends of each filter cylinder 3 are closed, a water outlet 4 is formed in the end part of each filter cylinder 3, the water outlet 4 is communicated with the outside of the shell 1, two ends of each filter cylinder 3 are rotatably connected with two ends of the shell 1, the filter cylinders 3 can rotate in the shell 1 while the filter groups revolve with the shell 1, liquid to be filtered in the shell 1 enters the filter cylinders 3 from the outer side walls of the filter cylinders 3 to be filtered, a first partition plate 5 with an arc-shaped section is arranged in the filter cylinders 3, and the relative positions of the first partition plates 5 and the shell 1 are fixed, the first clapboard 5 is parallel to the filter cylinder 3, two side edges of the first clapboard 5 are contacted with the inner wall of the filter cylinder 3, the first clapboard 5, the inner wall of the filter cylinder 3 and two end surfaces of the filter cylinder 3 enclose a closed area in the filter cylinder 3, the water pressure in the filter cylinder 3 can not act in the closed area, two second clapboards 6 are arranged between each filter cylinder 3 and the inner wall of the shell 1, the two second clapboards 6 are parallel to the filter cylinder 3, the two second clapboards 6 are arranged at intervals, the outer side edges of the second clapboards 6 are attached and fixed with the inner wall of the shell 1, the inner side edges are attached with the outer wall of the filter cylinder 3, the inner side edges of the two clapboards are aligned with the two side edges of the first clapboard 5 in the filter cylinder 3, the two second clapboards 6, the outer wall of the filter cylinder 3, the inner wall of the shell 1 and two end surfaces of the shell 1 form a closed area at the periphery of the filter cylinder 3, the water pressure in the shell 1 can not act in the closed area, a slag discharge opening 7 communicated with the closed area is arranged on the end surface of the shell 1; the two closed areas inside and outside the filter cartridge 3 are both located at the position farthest from the central axis of the shell 1, the side wall of the filter cartridge 3 separates the two closed areas inside and outside, the two closed areas inside and outside are independent of the shell 1 and the water environment in the filter cartridge 3, the filter cartridge 3 does not participate in the filtration, when the shell 1 revolves, as the two closed areas are farthest from the center of the shell 1, a larger centrifugal force is generated at the position, impurities in the filter cartridge 3 part which does not participate in the filtration between the two closed areas are thrown out to the closed area at the outer side under the action of the centrifugal force, and as the filter cartridge 3 rotates, the filter cartridge 3 part which does not participate in the filtration is continuously switched, so that the centrifugal force can be used for continuously cleaning the whole filter cartridge 3 in the filtration process.

The both ends of casing 1 be fixed with first pivot 8, casing 1 rotates around first pivot 8, the axis department that the first pivot 8 at the front end was seted up to water inlet 2 communicates with each other with casing 1 is inside, through the rotation of first pivot 8 drive casing 1, water inlet 2 is seted up on first pivot 8 and is changeed in the 2 positions of water inlet when casing 1 rotates, the inlet channel with first pivot 8 rotate be connected can.

The two ends of each filter cylinder 3 are rotatably connected with the shell 1 through a second rotating shaft 9, the two ends of the second rotating shaft 9 extend out of the shell 1, the second rotating shaft 9 is hollow and communicated with the interior of the filter cylinder 3, the hollow part of the second rotating shaft 9 at the rear end is a water outlet 4, a cross rod 10 is arranged at the axis of each filter cylinder 3, the first partition plate 5 is fixedly connected with the cross rod 10 through a first connecting rod 11, the two ends of the cross rod 10 extend out of the shell 1 through the hollow part of the second rotating shaft 9, and the two ends of the cross rod 10 are fixedly connected with the first rotating shaft 8 through a second connecting rod 12, so that the fixed connection of the second partition plate 6 and the shell 1 is realized, and the rotation of the filter cylinders 3 is not influenced; a sealing ring is arranged between the cross rod 10 and the second rotating shaft 9 at the front end, so that liquid leakage at the position is avoided, and the diameter of the drain hole is larger than that of the cross rod 10, so that the drain hole cannot be blocked by the cross rod 10.

A first gear 13 is sleeved on a first rotating shaft 8 at the front end in an empty mode, a second gear 14 is fixed on each second rotating shaft 9 at the front end, the second gears 14 are all meshed with the first gears 13, a third gear 15 meshed with the first gears 13 is fixed at the front end of the shell 1, the third gear 15 drives a plurality of second gears 14 to rotate through the first gears 13, so that a plurality of filter cylinders 3 are driven to rotate, the third gear 15 is driven by a motor on the end face of the fixed shell 1, and the motor is powered by a mobile power supply fixed on the end face of the shell 1.

The filter cartridge 3 consists of a cylindrical porous inner framework 16 and a filter screen 17 wrapped on the outer wall of the inner framework 16, so that the rigidity of the filter cartridge 3 is ensured, and meanwhile, the filter screen 17 can be replaced as necessary.

The side edges of the first partition plate 5 and the second partition plate 6, which are contacted with the filter cartridge 3, are respectively fixed with a rubber plate 18 which is jointed with the filter cartridge 3, the rubber plate 18 is in an arc shape with the same curvature as the filter cartridge 3 so as to ensure the overall jointing with the filter cartridge 3, and meanwhile, the rubber plate 18 at the outer side can also scrape the outer wall of the filter cartridge 3 when the filter cartridge 3 rotates.

A circular water collection cover 19 is installed at the end portion of the first rotating shaft 8 at the rear end through a bearing, the water collection cover 19 is fixed, the water collection cover 19 covers the water discharge openings 4, and a water discharge pipe 20 is installed at the bottom of the water collection cover 19.

The first partition plate 5 is provided with water through holes 21, the water through holes 21 enable a small amount of purified water in the filter cartridge 3 to enter the inner side closed area, then the purified water is thrown out through the filter cartridge 3 under the action of centrifugal force, impurities in the filter screen 17 are carried when the purified water is thrown out, and a certain backflushing effect is achieved.

The shape of the inner wall of the shell 1 is similar to the distribution positions of the plurality of filtering components, so that the internal volume of the shell 1 can be reduced, and the rapid pressure rise of sewage is facilitated.

The specific working process of the invention is as follows:

the water inlet pipeline is communicated with the water inlet 2 through a rotary joint, the first rotating shaft 8 is driven by a belt or a gear set to drive the shell 1 to rotate, the shell 1 drives the multiple groups of filtering sets to revolve when rotating, the rotating speed of the shell 1 is high to generate large centrifugal force, the third gear 15 is started to drive the filter cylinder 3 to rotate through the first gear 13 and the second gear 14, and the filter cylinder 3 only needs to be driven slowly.

After entering the shell 1, sewage is filtered by the filter cylinder 3 under the action of pressure and then enters the filter cylinder 3, and then is discharged into the water collecting cover 19 from the water discharge hole and then is discharged through the water discharge pipe 20; in the filtering process, no water or water pressure is applied to the enclosed area enclosed by the first partition plate 5 and the second partition plate 6, so that the part of the filter cartridge 3 does not participate in the filtering process, and under the centrifugal force action of the filter cartridge 3 revolving along with the shell 1, the impurities blocked in the part of the filter cartridge 3 are thrown out to the outside enclosed area, and in addition, a small amount of purified water in the filter cartridge 3 enters the inside enclosed area through the water holes 21 and is thrown out by the centrifugal force to pass through the filter cartridge 3, so that the impurities in the filter cartridge 3 are favorably flushed out.

When the filter cartridge 3 revolves along with the shell 1, the gear set drives the filter cartridge 3 to slowly rotate, the whole side wall of the filter cartridge 3 continuously passes through a closed area to be cleaned, so that the whole filter cartridge 3 is continuously cleaned in the filtering process, and the outer wall of the filter cartridge 3 is cleaned by the rubber plate 18 on the outer side when the filter cartridge 3 rotates.

The slag discharge port 7 can be plugged at ordinary times, and slag can be discharged by opening regularly.

According to the invention, the closed area is separated on the filter screen 17 in the filtering process, impurities in the filter screen 17 are thrown out in time by using the centrifugal force generated when the filter cartridge 3 revolves, the situation that the impurities are accumulated in the meshes more and more seriously and the cleaning and the filtering are carried out simultaneously is avoided, and the position of the filter screen 17 is switched continuously by the rotation of the filter cartridge 3, so that the continuous cleaning of the whole filter screen 17 in the filtering process is realized, the filter screen can be kept in a high-permeability state all the time, namely the high-efficiency filtering is always kept, and the screen cleaning is not required even if the filter screen works for a long time.

Claims

1. A sewage filtering treatment device is characterized by comprising a shell (1) and a plurality of filtering groups installed in the shell (1), wherein the filtering groups are uniformly distributed on the inner circumference of the shell (1), a water inlet (2) is formed in the end face of the shell (1), each filtering group comprises a cylindrical filtering drum (3), two ends of each filtering drum (3) are sealed, a water outlet (4) is formed in the end part of each filtering drum (3), two ends of each filtering drum (3) are rotatably connected with two ends of the shell (1), each filtering drum (3) can rotate in the shell (1) while revolving along with the shell (1), a first partition plate (5) with an arc-shaped cross section is installed in each filtering drum (3), the relative positions of the first partition plate (5) and the shell (1) are fixed, the first partition plate (5) is parallel to the filtering drums (3), two side edges of the first partition plate (5) are in contact with the inner wall of each filtering drum (3), the first partition plate (5) is in contact with the inner wall of each filtering drum (3) and two end faces of each filtering drum (3) surround the inner wall of each filtering drum (6), two second partition plates (6) are arranged in parallel to the shell (1), and two second partition plates (6) are arranged in parallel to each filtering drum (6), the inner side edges of the two second partition plates (6), the outer wall of the filter cylinder (3), the inner wall of the shell (1) and two end faces of the shell (1) form a closed area at the periphery of the filter cylinder (3), and a slag discharge port (7) communicated with the closed area is formed in the end face of the shell (1); the two closed areas inside and outside the filter cartridge (3) are both located at the farthest positions from the central axis of the shell (1).

2. The sewage filtering treatment device according to claim 1, wherein a first rotating shaft (8) is fixed at two ends of the housing (1), the housing (1) rotates around the first rotating shaft (8), and the water inlet (2) is formed at the axis of the first rotating shaft (8) at the front end and communicated with the inside of the housing (1).

3. The sewage filtering treatment device according to claim 1, wherein both ends of each filter cylinder (3) are rotatably connected with the housing (1) through a second rotating shaft (9), both ends of the second rotating shaft (9) extend out of the housing (1), the second rotating shaft (9) is hollow and is communicated with the inside of the filter cylinder (3), the hollow part of the second rotating shaft (9) at the rear end is a water outlet (4), a cross rod (10) is arranged at the axial line of each filter cylinder (3), the first partition plate (5) is fixedly connected with the cross rod (10) through a first connecting rod (11), both ends of the cross rod (10) extend out of the housing (1) through the hollow part of the second rotating shaft (9), and both ends of the cross rod (10) are fixedly connected with the first rotating shaft (8) through a second connecting rod (12); a sealing ring is arranged between the cross rod (10) and the second rotating shaft (9) at the front end, and the diameter of the drain hole is larger than that of the cross rod (10).

4. A sewage filtering treatment device according to claim 2, characterized in that a first gear (13) is sleeved on the first rotating shaft (8) of the front end, a second gear (14) is fixed on each second rotating shaft (9) of the front end, the second gears (14) are all meshed with the first gear (13), and a third gear (15) meshed with the first gear (13) is fixed at the front end of the housing (1).

5. The sewage filtering treatment device according to claim 1, wherein the filter cartridge (3) is composed of a cylindrical porous inner framework (16) and a filter screen (17) wrapped on the outer wall of the inner framework (16).

6. The sewage filtering treatment device according to claim 1, wherein a rubber plate (18) attached to the filter cartridge (3) is fixed on each side of the first partition plate (5) and the second partition plate (6) contacting the filter cartridge (3), and the rubber plate (18) has an arc shape having the same curvature as the filter cartridge (3).

7. The sewage filtering treatment device according to claim 1, wherein a circular water collection cover (19) is mounted at the end of the first rotating shaft (8) at the rear end through a bearing, the water collection cover (19) is fixed, the water collection cover (19) buckles the plurality of water outlets (4), and a drain pipe (20) is mounted at the bottom of the water collection cover (19).

8. The sewage filtering treatment device according to claim 1, wherein the first partition (5) is provided with water through holes (21), and the water through holes (21) enable a small amount of purified water in the filter cartridge (3) to enter the inner closed area.

9. A sewage filtration treatment apparatus according to claim 1, wherein the shape of the inner wall of said housing (1) is similar to the distribution position of a plurality of filtration components.