CN220976693U

CN220976693U - Biological aerated filter

Info

Publication number: CN220976693U
Application number: CN202322731234.0U
Authority: CN
Inventors: 何圣; 董曼; 徐洁雅; 朱红良
Original assignee: Zhejiang Cailian Environmental Protection Technology Co ltd
Current assignee: Zhejiang Cailian Environmental Protection Technology Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-05-17
Anticipated expiration: 2033-10-12

Abstract

The utility model relates to a biological aerated filter, which comprises a tank body, wherein a water inlet pipe is fixedly arranged on the outer wall of the tank body and positioned at the lower end, a connecting pipe is arranged on one side of the water inlet pipe, a pretreatment tank is fixedly arranged at the other end of the connecting pipe, a first conical surface is arranged on the inner wall of the water inlet pipe and positioned at one end, a second conical surface is arranged at one end of the connecting pipe, a fixing ring is arranged on one side of the second conical surface and positioned on the connecting pipe, a fastening nut is arranged at the joint of the water inlet pipe and the connecting pipe, an outer connecting pipe is arranged on the outer wall of the pretreatment tank, and strip-shaped blocks are arranged on the inner wall of the pretreatment tank and positioned at the front end and the rear end of the pretreatment tank, so that a user can discharge sewage into the pretreatment tank through the outer connecting pipe and filter large-particle impurities in the sewage through a coarse filter net and a fine filter net in the pretreatment tank, and the large-particle impurities in the sewage are prevented from blocking the mechanism, and the sewage treatment effect is prevented.

Description

Biological aerated filter

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a biological aerated filter.

Background

The aeration biological filter, BAF for short, is a novel biological membrane method sewage treatment process developed in Europe and America at the end of the 80 s, has been greatly developed in the beginning of the 90 s, and reaches hundreds of thousands of tons per day at the maximum, but most biological filters in the prior art directly discharge sewage into a tank, do not perform pretreatment, so that large-particle impurities in the sewage are easy to cause blockage of the biological filter, and influence the treatment effect; in the process of filtering and transporting sewage in the filter tank, the pebble layer in the traditional filter tank is in direct contact with the transporting head, so that the transporting head is easy to be blocked, and the sewage transportation and filtration are affected; and the sewage after treatment is mostly directly discharged through a drain pipe without a circulating mechanism, and if the treatment does not reach the standard, the environment is still polluted.

Disclosure of utility model

(One) solving the technical problems

Aiming at the problems in the prior art, the utility model provides a biological aerated filter for solving the technical problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a biological aerated filter, includes the cell body, just be located the fixed inlet tube that is equipped with of lower extreme on the outer wall of cell body, one side of inlet tube is equipped with the connecting pipe, the fixed pretreatment tank that is equipped with of other end of connecting pipe, first conical surface has been seted up to just be located one end on the inner wall of inlet tube, the one end of connecting pipe is equipped with the second conical surface, one side of second conical surface just is located and is equipped with the retainer plate on the connecting pipe, the junction of inlet tube and connecting pipe is equipped with fastening nut, be equipped with outer takeover on the outer wall of pretreatment tank, both ends all are equipped with the bar piece around on the inner wall of pretreatment tank and be located, the bar piece is provided with two sets of and all sets of slot, the intermediate position of bar piece is equipped with the coarse strainer, one side of coarse strainer is equipped with thin filter screen, coarse strainer and thin filter screen all with slot slidable mounting, on the inner wall of cell body and be located the lower extreme and be fixed with the baffle, the inside of baffle all is equipped with the filter head, the filter head is provided with a plurality of and becomes evenly distributed.

Preferably, the upper end of baffle is equipped with the baffle, the baffle is located the upper end of filter head and is the middle part arch form that makes progress, the through-hole has been seted up on the outer wall of baffle, the through-hole is provided with a plurality of and becomes evenly distributed, the fixed mounting circle that is equipped with on the outer wall of baffle, the mounting circle adopts bolt fixed mounting with the baffle, is convenient for keep apart filter head and pebble layer.

In a further preferred aspect, the upper end face of the baffle is provided with a pebble layer, the upper end of the pebble layer is provided with a biological filter material in the tank body, and the upper end of the biological filter material is fixedly provided with a water outlet pipe on the outer wall of the tank body, so that the sewage is conveniently purified.

In a further preferred embodiment, the other end of the water outlet pipe is provided with a transfer box, a water outlet pipe is fixedly arranged on the outer wall of the transfer box and at the lower end of the transfer box, and a valve is arranged on the water outlet pipe, so that the treated water can be conveniently discharged.

In a further preferred aspect, the circulating pipe is fixedly arranged on the lower end face of the transfer box, the circulating pump is arranged on the circulating pipe, and the observation window is arranged on the outer wall of the transfer box, so that the treated water can be checked conveniently.

In a further preferred mode, a first aeration pipe is fixedly arranged on the outer wall of the tank body and positioned at the bottom, a second aeration pipe is arranged at the upper end of the first aeration pipe and communicated with the pebble layer, so that the content of dissolved oxygen in the water body is conveniently improved, and the requirement of aerobic bacteria in the biological filter material is met.

In a further preferred embodiment, the second conical surface is located inside the first conical surface and the inclination of the second conical surface is equal, so that the tightness between the connecting pipe and the water inlet pipe is improved.

In a further preferred embodiment, a sealing cover is arranged on the upper end face of the pretreatment tank, and the sealing cover and the pretreatment tank are fixedly installed by bolts, so that the upper end of the pretreatment tank is conveniently sealed.

(III) beneficial effects

Compared with the prior art, the utility model provides the biological aerated filter, which has the following beneficial effects:

1. According to the utility model, the water inlet pipe, the connecting pipe, the pretreatment box, the first conical surface, the second conical surface, the fixing ring, the fastening nut, the outer connecting pipe, the strip-shaped block, the slot, the coarse filter screen and the fine filter screen are arranged, so that a user can discharge sewage into the pretreatment box through the outer connecting pipe and filter through the coarse filter screen and the fine filter screen in the pretreatment box to filter large particle impurities in the sewage, so that the large particle impurities in the sewage are prevented from blocking the mechanism, the sewage treatment effect is influenced, the user can detach the sealing cover through the bolts to detach the fine filter screen and the coarse filter screen in the pretreatment box, the cleaning is convenient, and the user can press the fixing ring in the pretreatment box through tightening the fastening nut, so that the tightness between the connecting pipe and the water inlet pipe is improved;

2. According to the utility model, the baffle plate, the filter head, the baffle plate, the through holes, the mounting ring, the pebble layer and the biological filter material are arranged, so that sewage can move upwards through the filter head by arranging the filter head, then the sewage can be treated through the pebble layer and the biological filter material in the tank body, and the filter head can be isolated from the pebble layer by arranging the baffle plate and the through holes, so that the pebble layer can be prevented from blocking the filter head, and further the water transmission and filtration are affected;

3. According to the utility model, the water outlet pipe, the transfer box, the water outlet pipe, the valve, the circulating pipe, the circulating pump and the observation window are arranged, so that treated sewage can enter the transfer box through the water outlet pipe, at the moment, a user can check water in the transfer box through the observation window or detect water in the water outlet pipe, and if the treatment does not reach the standard, the circulating pump can be opened to enable the water to enter the tank body through the circulating pipe again, so that secondary treatment is performed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a biological aerated filter according to the present utility model;

FIG. 2 is an overall sectional view of a biological aerated filter according to the utility model;

FIG. 3 is a sectional view showing the installation of a pretreatment tank, a coarse filter screen and a fine filter screen in the present utility model;

FIG. 4 is an exploded view of the installation of the baffle, mounting ring and baffle of the present utility model;

FIG. 5 is a schematic view showing the positions of the bar blocks and slots in the pretreatment tank according to the present utility model.

In the figure: 1. a cell body; 2. a water inlet pipe; 3. a connecting pipe; 4. a pretreatment box; 5. a first conical surface; 6. a second conical surface; 7. a fixing ring; 8. a fastening nut; 9. an outer connecting pipe; 10. a bar block; 11. a slot; 12. a coarse filter screen; 13. fine filter screen; 14. a partition plate; 15. a filter head; 16. a baffle; 17. a through hole; 18. a mounting ring; 19. a pebble layer; 20. a biological filter material; 21. a water outlet pipe; 22. a transfer box; 23. a drain pipe; 24. a valve; 25. a circulation pipe; 26. a circulation pump; 27. an observation window; 28. a first aerator pipe; 29. a second aerator pipe; 30. sealing cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

Referring to fig. 1-5, a biological aerated filter comprises a tank body 1, a water inlet pipe 2 is fixedly arranged on the outer wall of the tank body 1 and positioned at the lower end, a connecting pipe 3 is arranged on one side of the water inlet pipe 2, a pretreatment tank 4 is fixedly arranged at the other end of the connecting pipe 3, a first conical surface 5 is arranged on the inner wall of the water inlet pipe 2 and positioned at one end, a second conical surface 6 is arranged at one end of the connecting pipe 3, a fixing ring 7 is arranged on one side of the second conical surface 6 and positioned on the connecting pipe 3, a fastening nut 8 is arranged at the joint of the water inlet pipe 2 and the connecting pipe 3, an outer connecting pipe 9 is arranged on the outer wall of the pretreatment tank 4, strip-shaped blocks 10 are respectively arranged at the front end and the rear end of the inner wall of the pretreatment tank 4, two groups of strip-shaped blocks 10 are respectively provided with a slot 11, a coarse filter screen 12 is arranged in the middle position of each strip-shaped block 10, a fine filter screen 13 is arranged on one side of each coarse filter screen 12 and each fine filter screen 13 is slidably arranged with the slot 11, a partition 14 is fixedly arranged on the inner wall of the tank body 1 and positioned at the lower end of the partition 14, filter heads 15 are respectively provided with filter heads 15, and a plurality of filter heads 15 are uniformly distributed.

In this embodiment, baffle 16 is provided at the upper end of baffle 14, baffle 16 is located at the upper end of filter head 15 and is in the shape of arc with the middle part protruding upwards, through holes 17 are provided on the outer wall of baffle 16, through holes 17 are provided with a plurality of and become evenly distributed, mounting rings 18 are fixedly provided on the outer wall of baffle 16, mounting rings 18 and baffle 14 are fixedly mounted by bolts, and filter head 15 can be protected against blockage.

In this embodiment, the upper end face of the baffle 16 is provided with a pebble layer 19, the upper end of the pebble layer 19 is provided with a biological filter material 20 inside the tank body 1, and the upper end of the biological filter material 20 is fixedly provided with a water outlet pipe 21 on the outer wall of the tank body 1, so that sewage can be purified.

In this embodiment, the other end of the water outlet pipe 21 is provided with a transfer box 22, a water outlet pipe 23 is fixedly arranged on the outer wall and the lower end of the transfer box 22, a valve 24 is arranged on the water outlet pipe 23, and the treated water can be discharged by opening the valve 24.

In this embodiment, a circulation pipe 25 is fixedly arranged on the lower end surface of the transfer box 22, a circulation pump 26 is arranged on the circulation pipe 25, and an observation window 27 is arranged on the outer wall of the transfer box 22, so that water in the transfer box 22 can be observed.

In this embodiment, the first aeration pipe 28 is fixedly arranged on the outer wall of the tank body 1 and located at the bottom, the second aeration pipe 29 is arranged at the upper end of the first aeration pipe 28, and the second aeration pipe 29 is communicated with the pebble layer 19, so that the dissolved oxygen content in the water body can be increased, and the requirement of aerobic bacteria in the biological filter material 20 can be met.

In this embodiment, the second conical surface 6 is located inside the first conical surface 5, and the inclination of the second conical surface and the first conical surface are equal, so that the water leakage phenomenon at the connection position of the connecting pipe 3 and the water inlet pipe 2 can be prevented.

In this embodiment, the upper end surface of the pretreatment tank 4 is provided with a sealing cover 30, and the sealing cover 30 and the pretreatment tank 4 are fixedly mounted by bolts, so that the upper end of the pretreatment tank 4 can be sealed.

Example 2:

In summary, when in use, a user can discharge sewage into the pretreatment tank 4 through the outer connecting pipe 9, and filter through the coarse filter screen 12 and the fine filter screen 13 in the pretreatment tank 4, so as to filter large particle impurities in the sewage, prevent the large particle impurities from blocking the mechanism, influence the sewage treatment effect, and disassemble the sealing cover 30 through bolts, so as to disassemble the fine filter screen 13 and the coarse filter screen 12 in the pretreatment tank 4, and facilitate cleaning, and by arranging the first conical surface 5 and the second conical surface 6, the user can tightly press the inner part of the pretreatment tank 4 against the fixing ring 7 through tightening the fastening nut 8, so as to increase the tightness between the connecting pipe 3 and the water inlet pipe 2, the sewage after the sewage is filtered by the pretreatment tank 4 enters the bottom of the tank body 1 through the water inlet pipe 2, and then moves upwards through the filter head 15, then the sewage is treated by the pebble layer 19 and the biological filter material 20 in the tank body 1, the filter head 15 and the pebble layer 19 can be isolated by arranging the baffle 16 and the through holes 17, so as to prevent the pebble layer 19 from blocking the filter head 15 and further affecting the water transmission and filtration, the treated sewage enters the transfer box 22 through the water outlet pipe 21, at the moment, a user can check the water in the transfer box 22 or detect the water in the water outlet pipe 23 through the observation window 27, if the treatment does not reach the standard, the water can enter the tank body 1 again through the circulating pipe 25 by opening the circulating pump 26, the secondary treatment is convenient, and the first aeration pipe 28 and the second aeration pipe 29 are also arranged in the tank body 1 so as to improve the dissolved oxygen content in the water, meeting the requirements of aerobic bacteria in the biological filter material 20.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a biological aerated filter, includes cell body (1), its characterized in that: the utility model discloses a filter tank, including tank body (1), connecting pipe (2) is fixed to be located on the outer wall of tank body (1), one side of inlet tube (2) is equipped with connecting pipe (3), the other end of connecting pipe (3) is fixed to be equipped with pretreatment case (4), first conical surface (5) have been seted up on the inner wall of inlet tube (2) and be located one end, one end of connecting pipe (3) is equipped with second conical surface (6), one side of second conical surface (6) and be located connecting pipe (3) and be equipped with retainer plate (7), the junction of inlet tube (2) and connecting pipe (3) is equipped with fastening nut (8), be equipped with outer takeover (9) on the outer wall of pretreatment case (4), on the inner wall of pretreatment case (4) and be located both ends all be equipped with bar piece (10), bar piece (10) are provided with two sets of and all offer slot (11), the intermediate position of bar piece (10) is equipped with coarse filter screen (12), one side of coarse filter screen (12) is equipped with fine filter screen (13), fine filter screen (12) and filter screen (13) are equipped with on the inner wall (14) and the equal baffle (14) of sliding connection (1), the filter heads (15) are provided with a plurality of filter heads and are uniformly distributed.

2. A biological aerated filter as claimed in claim 1, wherein: the upper end of baffle (14) is equipped with baffle (16), baffle (16) are located the upper end of filter head (15) and are the middle part bellied arcuation that makes progress, through-hole (17) have been seted up on the outer wall of baffle (16), through-hole (17) are provided with a plurality of and become evenly distributed, fixed mounting ring (18) that are equipped with on the outer wall of baffle (16), mounting ring (18) adopt bolt fixed mounting with baffle (14).

3. A biological aerated filter as claimed in claim 2, wherein: the upper end face of baffle (16) is equipped with pebble layer (19), the inside that just is located cell body (1) of the upper end of pebble layer (19) is equipped with biological filter material (20), the upper end of biological filter material (20) just is located fixed outlet pipe (21) that is equipped with on the outer wall of cell body (1).

4. A biological aerated filter according to claim 3 wherein: the other end of the water outlet pipe (21) is provided with a transfer box (22), a water outlet pipe (23) is fixedly arranged on the outer wall of the transfer box (22) and at the lower end of the transfer box, and a valve (24) is arranged on the water outlet pipe (23).

5. A biological aerated filter as claimed in claim 4, wherein: the circulating pipe (25) is fixedly arranged on the lower end face of the transfer box (22), the circulating pump (26) is arranged on the circulating pipe (25), and the observation window (27) is arranged on the outer wall of the transfer box (22).

6. A biological aerated filter as claimed in claim 1, wherein: the pool is characterized in that a first aeration pipe (28) is fixedly arranged on the outer wall of the pool body (1) and positioned at the bottom, a second aeration pipe (29) is arranged at the upper end of the first aeration pipe (28), and the second aeration pipe (29) is communicated with the pebble layer (19).

7. A biological aerated filter as claimed in claim 1, wherein: the second conical surface (6) is positioned in the first conical surface (5) and the inclination of the second conical surface and the first conical surface are equal.

8. A biological aerated filter as claimed in claim 1, wherein: the upper end face of the pretreatment box (4) is provided with a sealing cover (30), and the sealing cover (30) and the pretreatment box (4) are fixedly arranged by bolts.