CN114604931A

CN114604931A - Active carbon filtration equipment for sewage treatment

Info

Publication number: CN114604931A
Application number: CN202210451068.6A
Authority: CN
Inventors: 汪秀梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-06-10

Abstract

The invention discloses activated carbon filtering equipment for sewage treatment, and relates to the technical field of sewage treatment. The invention comprises a supporting frame; a treatment tank is vertically fixed on the support frame; the inside of the processing tank is provided with a filtering component; the filter assembly includes a plurality of containment cartridges; the containing cylinder is filled with activated carbon particles; a dirt scraping ring is horizontally arranged on the inner side of the filtering component; the periphery of the filtering component is horizontally sleeved with a filtering ring; the filter ring is arranged between the filter assembly and the treatment tank; the dirt scraping ring is connected with the filtering ring through a lifting component. The sewage treatment device filters the sewage in the treatment tank through the filtering component, and when the filtering component needs to be subjected to decontamination treatment, the lifting component is used for driving the dirt scraping ring and the filtering ring to move up and down in the treatment tank, so that the dirt attached to the filtering component is removed, the filtering efficiency and effect on the sewage are effectively ensured, and the filtering device has higher market application value.

Description

Activated carbon filtering equipment for sewage treatment

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to activated carbon filtering equipment for sewage treatment.

Background

Sewage treatment refers to a process of purifying sewage according to the requirement of discharging the sewage into a certain water body or reusing the sewage, and is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscapes, medical treatment, catering and the like.

The active carbon is generally used as a water filtration treatment process of a filtration filter material during sewage treatment, and when the active carbon filtration equipment for sewage treatment in the prior art is used for filtering sewage, sludge in the sewage can be accumulated on the surface of the active carbon, so that the problem of reduction of the filtration effect of the active carbon is caused, and the like. Therefore, it is urgently required to research an activated carbon filtering apparatus for sewage treatment so as to solve the above problems.

Disclosure of Invention

The invention aims to provide an activated carbon filtering device for sewage treatment, and aims to solve the technical problems in the background technology.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an active carbon filtering device for sewage treatment, which comprises a supporting frame; a treatment tank is vertically fixed on the support frame; the inside of the treatment tank is provided with a filter assembly; the filter assembly comprises a plurality of accommodating cylinders vertically arranged along the annular direction; a plurality of water delivery holes are uniformly distributed on the outer wall of the containing cylinder; activated carbon particles are filled in the accommodating cylinder; a dirt scraping ring for scraping dirt on the outer wall of the containing barrel is horizontally arranged on the inner side of the filtering component; a filter ring is horizontally sleeved on the periphery of the filter assembly; the filter ring is arranged between the filter assembly and the treatment tank; the dirt scraping ring is connected with the filtering ring through a lifting assembly; the lifting assembly is used for driving the dirt scraping ring and the filtering ring to move up and down in the treatment tank.

As a preferred technical scheme of the invention, the treatment tank comprises a tank body with an open structure at the upper part and a top cover connected to the open structure of the tank body through bolts; the bottom wall of the tank body is connected with a drain pipe; the connecting point of the drain pipe and the bottom wall of the tank body is arranged on the outer peripheral side of the filtering component; the top cover is provided with a water inlet; the outer wall of the upper part of the tank body is provided with a dirt outlet for taking out dirt on the filter ring; the outer end of the dirt outlet is provided with a matched baffle.

As a preferred technical scheme of the invention, the filter assembly further comprises a first bearing ring horizontally fixed on the bottom wall of the tank body and a second bearing ring coaxially arranged on the first bearing ring; the first bearing ring is connected with the second bearing ring through a plurality of division bars which are vertically arranged along the annular direction; an accommodating cylinder is arranged between every two adjacent division bars; the outer wall of the containing cylinder is abutted against the side edges of the two adjacent division bars; both ends of the accommodating cylinder are of closed structures; the lower end of the containing cylinder is rotatably connected to the upper surface of the first bearing ring; a hollow shaft which is coaxially arranged is fixedly inserted into the upper end of the containing cylinder; the hollow shaft is inserted on the second bearing ring in a rotating mode.

As a preferred technical solution of the present invention, a plurality of the accommodating cylinders are connected with each other through a flushing assembly; the flushing assembly comprises a plurality of water inlet pipes which are vertically arranged along the annular direction; the lower end of the water inlet pipe penetrates through the hollow shaft and is inserted to the lower part of the containing cylinder; the upper end part of the water inlet pipe is provided with a one-way valve; the upper ends of the water inlet pipes are connected to a water supply pipe; one end of the water supply pipe is of a closed structure; the other end of the water supply pipe penetrates through the side wall of the top cover and is connected to the water outlet end of a water delivery pump; the water inlet end of the water delivery pump is connected to a water storage tank; the water delivery pump and the water storage tank are both fixed on the support frame.

As a preferred technical scheme of the invention, a plurality of hollow shafts are connected through a driving component; the driving assembly comprises a plurality of first gears horizontally arranged along the annular direction; the first gear is fixedly sleeved on the periphery of the hollow shaft; a second gear is meshed with the first gear; the second gear is horizontally fixed on an output shaft of a second driving motor; the second driving motor is vertically fixed on the top cover.

As a preferred technical scheme of the invention, the inner edge of the dirt scraping ring is integrally formed with an upper flanging used for limiting dirt on the dirt scraping ring; a plurality of dirt scraping ports corresponding to the containing cylinder are uniformly distributed on the outer edge of the dirt scraping ring along the annular direction; the dirt scraping port is of an arc-shaped structure; the inner surface of the dirt scraping opening is attached to the outer wall of the containing cylinder.

As a preferred technical scheme of the invention, a plurality of accommodating openings corresponding to the accommodating cylinders are uniformly distributed on the inner edge of the filter ring along the annular direction; the accommodating port is of an arc-shaped structure; the inner surface of the containing opening is attached to the outer wall of the containing barrel.

As a preferred technical scheme of the invention, the lifting assembly comprises a first driving motor vertically fixed on a support frame; a first rope winding roller and a second rope winding roller are fixed on an output shaft of the first driving motor side by side from bottom to top; a first pull rope and a second pull rope are wound on the first rope winding roller; one end of the first pull rope penetrates through the top cover in a sliding mode and is fixed on the upper surface of the dirt scraping ring; one end of the second pull rope penetrates through the top cover in a sliding mode and is fixed on the upper surface of the filter ring; a third pull rope and a fourth pull rope are wound on the second rope winding roller; one end of the third pull rope penetrates through the bottom wall of the tank body in a sliding manner and is fixed on the lower surface of the dirt scraping ring; one end of the fourth pull rope penetrates through the bottom wall of the tank body in a sliding manner and is fixed on the lower surface of the filter ring; a first fixed pulley corresponding to the first pull rope and the second pull rope is fixed on the outer wall of the lower part of the tank body; a second fixed pulley corresponding to the first pull rope and the second pull rope is fixed on the upper surface of the top cover; the first pull rope and the second pull rope are sequentially lapped on the first fixed pulley and the second fixed pulley; the winding direction of the first pull rope on the first rope winding roller is opposite to the winding direction of the third pull rope on the second rope winding roller; the winding direction of the second pull rope on the first rope winding roller is opposite to the winding direction of the fourth pull rope on the second rope winding roller.

The invention has the following beneficial effects:

according to the invention, the sewage in the treatment tank is filtered by the filtering component, and when the filtering component needs to be subjected to decontamination treatment, the lifting component is used for driving the dirt scraping ring and the filtering ring to move up and down in the treatment tank, so that dirt attached to the filtering component is removed, the filtering efficiency and effect of the sewage are effectively ensured, the problems of poor filtering effect of activated carbon particles and the like caused by accumulation of sludge in the sewage on the surface of the accommodating cylinder are avoided, and the filtering device has high market application value.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an activated carbon filtering apparatus for sewage treatment according to the present invention.

Fig. 2 is a front view of the structure of fig. 1.

FIG. 3 is a schematic view of the structure of the treatment tank of the present invention.

Fig. 4 is a front view of the structure of fig. 3.

FIG. 5 is a schematic view of the structure of the dirt scraping ring and the filtering ring installed on the processing tank.

Fig. 6 is a schematic view of the filter assembly of the present invention.

Fig. 7 is a front view of the structure of fig. 6.

Fig. 8 is an enlarged schematic view of a portion a in fig. 7.

In the drawings, the components represented by the respective reference numerals are listed below:

1-support frame, 2-treatment tank, 3-filter assembly, 4-dirt scraping ring, 5-filter ring, 6-lifting assembly, 7-flushing assembly, 8-drive assembly, 201-tank body, 202-top cover, 203-water discharge pipe, 204-water inlet, 205-baffle, 301-containing cylinder, 302-activated carbon particles, 303-first bearing ring, 304-second bearing ring, 305-parting bead, 306-hollow shaft, 601-first drive motor, 602-first rope winding roller, 603-second rope winding roller, 604-first pull rope, 605-second pull rope, 606-third pull rope, 607-fourth pull rope, 608-first fixed pulley, 609-second fixed pulley, 701-water inlet pipe, 702-one-way valve, 703-water supply pipe, 704-water delivery pump, 705-water storage tank, 801-first gear, 802-second gear, 803-second driving motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 to 7, the present invention is an activated carbon filtering apparatus for sewage treatment, which includes a conventional supporting frame 1 in the art; a treatment tank 2 is vertically fixed on the support frame 1; the interior of the treatment tank 2 is provided with a filter assembly 3; the filter assembly 3 comprises a plurality of receiving cartridges 301 vertically arranged in a circular direction; a plurality of water delivery holes are uniformly distributed on the outer wall of the accommodating barrel 301; the containing cylinder 301 is filled with conventional activated carbon granules 302 in the field; a dirt scraping ring 4 for scraping dirt on the outer wall of the accommodating cylinder 301 is horizontally arranged on the inner side of the filtering component 3; a filter ring 5 is horizontally sleeved on the periphery of the filter component 3; the surface of the filtering ring 5 is provided with a plurality of filtering holes which are uniformly distributed; the filter ring 5 is arranged between the filter component 3 and the treatment tank 2; the dirt scraping ring 4 is connected with the filtering ring 5 through a lifting component 6; the lifting component 6 is used for driving the dirt scraping ring 4 and the filtering ring 5 to move up and down in the processing tank 2.

During the use, filter the sewage in the treatment tank 2 through filter assembly 3, suspend the filtration of sewage earlier when needs carry out the scrubbing to filter assembly 3, reuse lifting unit 6 drive to scrape dirty ring 4 and filter ring 5 up-and-down motion in treatment tank 2 again, thereby get rid of adnexed dirt on filter assembly 3, guaranteed the filtration efficiency and the effect to sewage effectively, avoided piling up and causing the not good scheduling problem of filter effect of active carbon granule 302 because of the silt in the sewage holds a 301 surface.

As shown in fig. 3-5, the treatment tank 2 comprises a tank body 201 with an open top and a top cover 202 bolted to the open top of the tank body 201; the bottom wall of the tank body 201 is connected with a drain pipe 203; the connection point of the drain pipe 203 and the bottom wall of the tank 201 is arranged on the outer periphery side of the filter assembly 3; the top cover 202 has a water inlet 204 with a trumpet-shaped structure; the outer wall of the upper part of the tank body 201 is provided with a dirt outlet for taking out dirt on the filter ring 5; the outer end of the dirt outlet is provided with a matched baffle 205. During the use, after filtering ring 5 moves to the position corresponding with the dirty mouth, take away the dirt on filtering ring 5 surface through dirty mouth, will scrape dirty ring 4 dirt through water inlet 204 again and take away to the filter effect of filtering ring 5 has been guaranteed.

The second embodiment is as follows:

on the basis of the first embodiment, the present embodiment is different in that:

as shown in fig. 6-8, the filter assembly 3 further includes a first carrying ring 303 horizontally fixed on the bottom wall of the tank 201 and a second carrying ring 304 coaxially disposed on the first carrying ring 303; the first bearing ring 303 and the second bearing ring 304 are connected through a plurality of division bars 305 vertically arranged along the annular direction; an accommodating barrel 301 is arranged between two adjacent division bars 305; the outer wall of the containing barrel 301 is abutted against the side edges of two adjacent division bars 305; both ends of the accommodating cylinder 301 are of a closed structure; the lower end of the accommodation cylinder 301 is rotatably connected to the upper surface of the first carrier ring 303; a hollow shaft 306 which is coaxially arranged is fixedly inserted into the upper end of the accommodating cylinder 301; the hollow shaft 306 is rotatably inserted through the second carrier ring 304. When the filter assembly is used, sewage enters the inner side of the filter assembly 3, flows to the outer side of the filter assembly 3 after being filtered by the activated carbon particles 302 in the containing cylinder 301, and is finally discharged through the drain pipe 203.

As shown in fig. 2, 4 and 6-8, a plurality of receiving cylinders 301 are connected with each other through a flushing assembly 7; the flushing assembly 7 comprises a plurality of water inlet pipes 701 vertically arranged along the annular direction; the lower end of the water inlet pipe 701 is inserted into the lower part of the accommodating cylinder 301 through the hollow shaft 306; the upper end of the water inlet pipe 701 is provided with a conventional one-way valve 702 in the field; a plurality of water outlet holes are axially formed in the partial section of the water inlet pipe 701 in the accommodating cylinder 301; the upper ends of a plurality of water inlet pipes 701 are connected to a water supply pipe 703; one end of the water supply pipe 703 is a closed structure; the other end of the water supply pipe 703 penetrates the side wall of the top cover 202 and is connected to the water outlet end of a water delivery pump 704; the water inlet end of the water delivery pump 704 is connected to a water storage tank 705; the water delivery pump 704 and the water storage tank 705 are both fixed on the support frame 1. Reset after dirty ring 4 accomplishes holding a section of thick bamboo 301 decontamination, then utilize water delivery pump 704 to arrange the quartzy in the water storage box 705 to holding a section of thick bamboo 301 through delivery pipe 703 and inlet tube 701 to the periphery of holding a section of thick bamboo 301 with the dirt in the active carbon granule 302 perpendicularly, then through lifting unit 6 will scrape dirty ring 4 and filter ring 5 and move to the upper portion of jar body 201 once more, take away the dirt on the dirty ring 4 through water inlet 204, and take away the dirt on the dirty ring 5 surface through going out the dirty mouth.

As shown in fig. 4-8, a plurality of hollow shafts 306 are connected with each other by a driving assembly 8; the drive assembly 8 includes a plurality of first gears 801 horizontally arranged in a circular direction; the first gear 801 is fixedly sleeved on the periphery of the hollow shaft 306; a first gear 801 is engaged with a second gear 802; the second gear 802 is horizontally fixed on an output shaft of a second driving motor 803; the second drive motor 803 is vertically fixed to the top cover 202. During the use, drive hollow shaft 306 through second driving motor 803 through second gear 802 and first gear 801 and rotate to drive and hold a section of thick bamboo 301 and rotate, can adjust the water delivery hole position that holds a section of thick bamboo 301, thereby guaranteed the filter effect to sewage.

The third concrete example:

as shown in fig. 5, an upper flanging for limiting dirt on the dirt scraping ring 4 is integrally formed at the inner edge of the dirt scraping ring 4; a plurality of dirt scraping ports corresponding to the accommodating cylinder 301 are uniformly distributed on the outer edge of the dirt scraping ring 4 along the annular direction; the dirt scraping port is of an arc structure; the inner surface of the dirt scraping opening is attached to the outer wall of the accommodating cylinder 301. The inner edge of the dirt scraping ring 4 is provided with the upward flanging, so that the upper part of the dirt scraping ring 4 can be enabled to have a certain dirt storage space, and the using effect of the dirt scraping ring 4 is ensured.

As shown in fig. 5, a plurality of accommodating ports corresponding to the accommodating cylinders 301 are uniformly distributed on the inner edge of the filter ring 5 along the annular direction; the accommodating port is of an arc structure; the inner surface of the receiving opening is attached to the outer wall of the receiving cylinder 301.

As shown in fig. 2-5, the lifting assembly 6 includes a first driving motor 601 vertically fixed on the supporting frame 1; a first rope winding roller 602 and a second rope winding roller 603 are fixed on an output shaft of the first driving motor 601 from bottom to top side by side; a first pulling rope 604 and a second pulling rope 605 are wound on the first rope winding roller 602; one end of the first pull rope 604 penetrates through the top cover 202 in a sliding manner and is fixed on the upper surface of the dirt scraping ring 4; one end of the second pull rope 605 is slidably penetrated through the top cover 202 and fixed on the upper surface of the filter ring 5; a third pull rope 606 and a fourth pull rope 607 are wound on the second rope winding roller 603; one end of a third pull rope 606 penetrates through the bottom wall of the tank body 201 in a sliding manner and is fixed on the lower surface of the dirt scraping ring 4; a first sealing sleeve is arranged at the joint between the third pull rope 606 and the bottom wall of the tank body 201; one end of the fourth pulling rope 607 penetrates through the bottom wall of the tank 201 in a sliding manner and is fixed on the lower surface of the filter ring 5; a second sealing sleeve is arranged at the joint between the fourth pull rope 607 and the bottom wall of the tank body 201; the winding direction of the first rope 604 on the first rope winding roller 602 is opposite to the winding direction of the third rope 606 on the second rope winding roller 603; the winding direction of the second rope 605 on the first rope winding roller 602 is opposite to the winding direction of the fourth rope 607 on the second rope winding roller 603. During the use, drive first serving roller 602 and second serving roller 603 through first driving motor 601 and rotate, make first serving roller 602 release first stay cord 604 and second stay cord 605 while second serving roller 603 roll up third stay cord 606 and fourth stay cord 607 or first serving roller 602 roll up first stay cord 604 and second stay cord 605 while second serving roller 603 release third stay cord 606 and fourth stay cord 607 to realize scraping dirty ring 4 and filtering ring 5's up-and-down motion.

As shown in fig. 4, a first fixed pulley 608 corresponding to the first rope 604 and the second rope 605 is fixed on the outer wall of the lower part of the tank 201; a second fixed pulley 609 corresponding to the first rope 604 and the second rope 605 is fixed to the upper surface of the top cover 202; the first rope 604 and the second rope 605 are sequentially connected to the first fixed pulley 608 and the second fixed pulley 609. The first fixed pulley 608 and the second fixed pulley 609 ensure the operation effect of the first rope 604 and the second rope 605.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An active carbon filtering device for sewage treatment comprises a supporting frame (1); the method is characterized in that:

a treatment tank (2) is vertically fixed on the support frame (1); the inside of the treatment tank (2) is provided with a filter assembly (3); the filter assembly (3) comprises a plurality of accommodating cylinders (301) vertically arranged along the annular direction; a plurality of water delivery holes are uniformly distributed on the outer wall of the accommodating barrel (301); the accommodating cylinder (301) is filled with activated carbon particles (302);

a dirt scraping ring (4) used for scraping dirt on the outer wall of the accommodating cylinder (301) is horizontally arranged on the inner side of the filtering component (3); a filter ring (5) is horizontally sleeved on the periphery of the filter component (3); the filter ring (5) is arranged between the filter component (3) and the treatment tank (2); the dirt scraping ring (4) is connected with the filtering ring (5) through a lifting component (6); the lifting component (6) is used for driving the dirt scraping ring (4) and the filtering ring (5) to move up and down in the processing tank (2).

2. The activated carbon filtering apparatus for sewage treatment as claimed in claim 1, wherein said treatment tank (2) comprises a tank body (201) having an open structure at the upper part thereof and a top cover (202) bolted to the open structure of the tank body (201); the bottom wall of the tank body (201) is connected with a drain pipe (203); the connecting point of the drain pipe (203) and the bottom wall of the tank body (201) is arranged on the outer peripheral side of the filtering component (3); the top cover (202) has a water inlet (204).

3. The activated carbon filtering device for sewage treatment as claimed in claim 2, wherein the outer wall of the upper part of the tank body (201) is provided with a dirt outlet for taking out dirt on the filtering ring (5); the outer end of the sewage outlet is provided with a matched baffle (205).

4. A sewage treatment activated carbon filter device according to claim 2 or 3, wherein said filter assembly (3) further comprises a first carrying ring (303) horizontally fixed on the bottom wall of the tank body (201) and a second carrying ring (304) coaxially arranged on the first carrying ring (303); the first bearing ring (303) is connected with the second bearing ring (304) through a plurality of division bars (305) which are vertically arranged along the annular direction; an accommodating cylinder (301) is arranged between every two adjacent division bars (305); the outer wall of the containing cylinder (301) is abutted against the side edges of two adjacent division bars (305); both ends of the accommodating cylinder (301) are of closed structures; the lower end of the containing cylinder (301) is rotatably connected to the upper surface of the first bearing ring (303); a hollow shaft (306) which is coaxially arranged is fixedly inserted into the upper end of the accommodating cylinder (301); the hollow shaft (306) is rotatably inserted on the second bearing ring (304).

5. A sewage treatment activated carbon filter device according to claim 4, wherein a plurality of said containing cartridges (301) are connected with each other by a flushing unit (7); the flushing assembly (7) comprises a plurality of water inlet pipes (701) vertically arranged along the annular direction; the lower end of the water inlet pipe (701) penetrates through the hollow shaft (306) and is inserted into the lower part of the accommodating cylinder (301); the upper end part of the water inlet pipe (701) is provided with a one-way valve (702); the upper ends of a plurality of water inlet pipes (701) are connected to a water supply pipe (703); one end of the water supply pipe (703) is of a closed structure; the other end of the water supply pipe (703) penetrates through the side wall of the top cover (202) and is connected to the water outlet end of a water delivery pump (704); the water inlet end of the water delivery pump (704) is connected to a water storage tank (705); the water delivery pump (704) and the water storage tank (705) are both fixed on the support frame (1).

6. A sewage treatment activated carbon filter device according to claim 5, wherein a plurality of said hollow shafts (306) are connected with each other by a driving assembly (8); the drive assembly (8) comprises a plurality of first gears (801) horizontally arranged along the annular direction; the first gear (801) is fixedly sleeved on the periphery of the hollow shaft (306); a second gear (802) is meshed with the first gear (801); the second gear (802) is horizontally fixed on an output shaft of a second driving motor (803); the second driving motor (803) is vertically fixed on the top cover (202).

7. The activated carbon filtering device for sewage treatment as claimed in claim 5 or 6, wherein the inner edge of the dirt scraping ring (4) is integrally formed with an upper flange for limiting dirt on the dirt scraping ring (4); a plurality of dirt scraping ports corresponding to the accommodating cylinder (301) are uniformly distributed on the outer edge of the dirt scraping ring (4) along the annular direction; the dirt scraping port is of an arc-shaped structure; the inner surface of the dirt scraping opening is attached to the outer wall of the containing cylinder (301).

8. The activated carbon filtering device for sewage treatment as claimed in claim 7, wherein a plurality of accommodating openings corresponding to the accommodating cylinders (301) are uniformly distributed on the inner edge of the filtering ring (5) along the annular direction; the accommodating port is of an arc-shaped structure; the inner surface of the accommodating opening is attached to the outer wall of the accommodating barrel (301).

9. A sewage treatment activated carbon filter device according to claim 8, wherein said lifting assembly (6) comprises a first driving motor (601) vertically fixed on the supporting frame (1); a first rope winding roller (602) and a second rope winding roller (603) are fixed on an output shaft of the first driving motor (601) from bottom to top side by side; a first pull rope (604) and a second pull rope (605) are wound on the first rope winding roller (602); one end of the first pull rope (604) penetrates through the top cover (202) in a sliding mode and is fixed on the upper surface of the dirt scraping ring (4); one end of the second pull rope (605) penetrates through the top cover (202) in a sliding manner and is fixed on the upper surface of the filter ring (5); a third pull rope (606) and a fourth pull rope (607) are wound on the second rope winding roller (603); one end of the third pull rope (606) penetrates through the bottom wall of the tank body (201) in a sliding mode and is fixed on the lower surface of the dirt scraping ring (4); one end of the fourth pull rope (607) penetrates through the bottom wall of the tank body (201) in a sliding mode and is fixed on the lower surface of the filter ring (5).

10. A sewage treatment activated carbon filter device according to claim 9, wherein the winding direction of the first draw cord (604) on the first cord roller (602) is opposite to the winding direction of the third draw cord (606) on the second cord roller (603); the winding direction of the second rope (605) on the first rope winding roller (602) is opposite to the winding direction of the fourth rope (607) on the second rope winding roller (603).