CN219596011U

CN219596011U - Multistage sewage treatment device

Info

Publication number: CN219596011U
Application number: CN202223158764.2U
Authority: CN
Inventors: 金方伟
Original assignee: Junpu Bioengineering Technology Shanghai Co ltd
Current assignee: Junpu Bioengineering Technology Shanghai Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-08-29
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a multistage sewage treatment device, which comprises a top cover (1), a bottom tank (2) and a tank body (3); the tank body (3) is formed by longitudinally stacking a plurality of filtering units (301) provided with filtering screens (331); the top cover (1) is movably arranged at the top of the tank body (3); the bottom tank (2) is movably arranged at the bottom of the tank body (3). According to the multistage sewage treatment device disclosed by the utility model, the filter screen (331) can be replaced by replacing the filter unit (301), so that the sewage treatment capability of the multistage sewage treatment device is recovered, or the filter unit (301) is disassembled for cleaning and then is rewritten and stacked, so that the convenience of replacing the filter screen (331) is greatly improved, and the sewage treatment efficiency is improved.

Description

Multistage sewage treatment device

Technical Field

The utility model relates to the field of sewage treatment, in particular to a multi-stage sewage treatment device.

Background

In the sewage treatment process, the sewage is treated by a multi-stage filtration mode, a multi-layer filter screen (331) is arranged in a tank body (3) in the prior art, the tank body (3) is of an integrated structure, the filter screen (331) is required to be movably connected with the tank body (3) so as to be convenient for replacing the filter screen (331), however, the convenience for replacing the filter screen (331) is poor in the prior art, and the sewage treatment efficiency is low.

Disclosure of Invention

The utility model aims to provide a multi-stage sewage treatment device.

The utility model provides a multistage sewage treatment device which comprises a top cover (1), a bottom tank (2) and a tank body (3); the tank body (3) is formed by longitudinally stacking a plurality of filtering units (301) provided with filtering screens (331); the top cover (1) is movably arranged at the top of the tank body (3); the bottom tank (2) is movably arranged at the bottom of the tank body (3).

The bottom tank (2) is of a structure with an open top and a closed bottom; a filter element (4) is arranged in the inner cavity of the bottom tank (2); the filter element (4) is funnel-shaped, and a gap is formed between the bottom of the filter element (4) and the inner wall of the bottom tank (2); the filter element (4) divides the inner cavity of the bottom tank (2) into a first cavity and a second cavity. The filter unit (301) comprises a first tank wall (311) and a second tank wall (321); the first tank wall body (311) and the second tank wall body (321) are of cylindrical structures; the outer diameter of the first tank wall body (311) is larger than the outer diameter of the second tank wall body (321); the inner diameter of the first tank wall body is larger than the inner diameter of the second tank wall body (321); the filter screen (331) is circular, and the periphery of the filter screen is fixed with the inner wall of the second tank wall body (321) and the position close to the first tank wall body (311); the filter screen (331) divides the interior of the filter unit (301) into a third cavity in the first tank wall (311) and a fourth cavity in the second tank wall. A sealing ring (6) is sleeved outside the top edge of the second tank wall body (321); the cross section of the sealing ring (6) is L-shaped. The top cover (1) comprises a top cover (101) and a cover body (102); the cover top (101) is arc-shaped; the cover body (102) is cylindrical, and the outer diameter of the cover body (102) is the same as the outer diameter of the first tank wall body (311); the inner diameter of the cover body (102) is the same as the outer diameter of the second tank wall body (321). The center position of the top cover (1) is provided with a first through hole, and the outer periphery of the first through hole is provided with a water inlet pipe (701) along the edge. The center position of the bottom tank (2) is provided with a second through hole, and the outer periphery edge of the second through hole is provided with a water outlet pipe (702). The utility model provides a multi-stage sewage treatment device, which also comprises a first flange ring (801) and a second flange ring (802); the first flange ring (801) is fixed on the top of the water inlet pipe (701); the second flange ring (802) is fixed at the bottom of the water outlet pipe (702). A filtering material layer is paved on the filter screens (331) of the plurality of filtering units (301); the pore diameter of the filtering material layer is sequentially reduced from top to bottom. The bottom of the bottom tank (2) is also fixed with four support columns (901), the bottom of the support columns (901) is also provided with a connecting bottom plate (902), and the connecting bottom plate (902) is provided with an assembly hole (903).

According to the multistage sewage treatment device provided by the utility model, the filter screen (331) can be replaced by replacing the filter unit (301), so that the sewage treatment capability of the multistage sewage treatment device provided by the embodiment is recovered, or the filter unit (301) is disassembled for cleaning and then is rewritten and stacked, so that the convenience of replacing the filter screen (331) is greatly improved, and the sewage treatment efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a multi-stage sewage treatment apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a top cover structure of a multi-stage sewage treatment apparatus according to an embodiment of the present utility model

FIG. 3 is a schematic diagram of a seal ring structure of a multi-stage sewage treatment apparatus according to an embodiment of the utility model

FIG. 4 is a schematic diagram of a filtration unit of a multi-stage sewage treatment apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a bottom tank structure of a multi-stage sewage treatment apparatus according to an embodiment of the present utility model;

fig. 6 is an assembly schematic diagram of a multi-stage sewage treatment apparatus according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. 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.

As shown in fig. 1 to 6, the multi-stage sewage treatment apparatus provided in this embodiment includes a top cover 1, a bottom tank 2, and a tank body 3; the tank 3 is formed by longitudinally stacking a plurality of filter units 301 provided with filter screens 331; the top cover 1 is movably arranged at the top of the tank body 3; the bottom tank 2 is movably arranged at the bottom of the tank body 3. It will be understood by those skilled in the art that, since the tank 3 is formed by longitudinally stacking a plurality of filter units 301, the filter screen 331 can be replaced by replacing the filter units 301, so as to recover the sewage treatment capability of the multi-stage sewage treatment device provided in this embodiment, or the filter units 301 are disassembled for cleaning and then stacked, thereby greatly improving the convenience of replacing the filter screen 331 and improving the sewage treatment efficiency.

Further, the bottom tank 2 has a structure with an open top and a closed bottom; a filter element 4 is arranged in the inner cavity of the bottom tank 2; the filter element 4 is funnel-shaped, and a gap is formed between the bottom of the filter element 4 and the inner wall of the bottom tank 2; the filter element 4 divides the inner cavity of the bottom tank 2 into a first cavity and a second cavity. As will be understood by those skilled in the art, the sewage subjected to the multi-stage filtration by the plurality of filtration units 301 falls into the first cavity, and then is filtered by the filter element 4 to permeate into the second cavity, thereby obtaining the final purified water of the multi-stage sewage treatment apparatus provided in the present embodiment.

Further, the filter unit 301 includes a first tank wall 311 and a second tank wall 321; the first tank wall 311 and the second tank wall 321 are both cylindrical structures; the outer diameter of the first tank wall 311 is larger than the outer diameter of the second tank wall 321; the inner diameter of the first tank wall is larger than the inner diameter of the second tank wall 321; the filter screen 331 is circular, and its periphery is fixed to the inner wall of the second tank wall 321 and the position close to the first tank wall 311; the filter screen 331 separates the filter unit 301 into a third chamber located within the first tank wall 311 and a fourth chamber located within the second tank wall. As will be appreciated by those skilled in the art, when the filter units 301 are stacked, the first tank wall 311 of the upper filter unit 301 is nested outside the second tank wall of the lower filter unit 301 and is flush with the outer wall of the first tank wall 311 of the lower filter unit 301; meanwhile, the inner wall of the second tank wall 321 of the upper filter unit 301 is flush with the inner wall of the second tank wall 321 of the lower filter unit 301; thus, a plurality of filter units 301 are stacked to form a tank 3 with neat outer wall and inner wall.

Further, a sealing ring 6 is sleeved outside the top edge of the second tank wall 321; the cross section of the sealing ring 6 is L-shaped. As will be appreciated by those skilled in the art, this ensures that the canister 3 formed by stacking the plurality of filter units 301 has a better sealing performance.

Further, the top cover 1 comprises a cover top 101 and a cover body 102; the cover top 101 is arc-shaped; the cover body 102 is cylindrical, and the outer diameter of the cover body 102 is the same as the outer diameter of the first tank wall 311; the inner diameter of the cover 102 is the same as the outer diameter of the second tank wall 321. As will be appreciated by those skilled in the art, the cap 102 is fitted over the outer side of the second tank wall 321 of the topmost filter unit 301 such that the outer wall surface of the cap 102 is flush with the outer wall surface of the first tank wall 311 of the topmost filter unit 301 when assembled.

Further, a first through hole is provided at the center of the top cover 1, and a water inlet pipe 701 is provided along the outer periphery of the first through hole. As will be appreciated by those skilled in the art, the sewage is injected into the tank 3 from the water inlet pipe 701 to perform multi-stage filtration.

Further, a second through hole is formed in the center of the bottom tank 2, and a water outlet pipe 702 is formed along the outer periphery of the second through hole. It will be understood by those skilled in the art that the purified water filtered by the last stage, i.e., the purified water filtered by the filter element 4 and entering the second cavity, is discharged to the outside of the multi-stage sewage treatment device provided in this embodiment through the water outlet for storage or treatment or application in a next process.

Further, the multi-stage sewage treatment device provided in this embodiment further includes a first flange ring 801 and a second flange ring 802; the first flange 801 is fixed on the top of the water inlet pipe 701; the second flange ring 802 is fixed to the bottom of the outlet pipe 702. It will be appreciated by those skilled in the art that the inlet pipe 701 and the outlet pipe 702 can be connected to an external pipe through the first flange ring 801 and the second flange ring 802, so as to facilitate the injection of sewage and the discharge of purified water.

Further, a filter material layer is laid on the filter screen 331 of the plurality of filter units 301; the pore diameter of the filtering material layer is sequentially reduced from top to bottom. This facilitates multi-stage filtration of the injected sewage from coarse to fine.

Further, four support columns 901 are fixed at the bottom of the bottom tank 2, a connection bottom plate 902 is further arranged at the bottom of the support columns 901, and assembly holes 903 are formed in the connection bottom plate 902. It will be appreciated by those skilled in the art that the connection base plate 902 and the support columns 901 can be fixed using the screw insertion fitting holes 903, so that the multi-stage sewage treatment apparatus provided in this embodiment can be firmly placed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The multistage sewage treatment device is characterized by comprising a top cover (1), a bottom tank (2) and a tank body (3); the tank body (3) is formed by longitudinally stacking a plurality of filtering units (301) provided with filtering screens (331); the top cover (1) is movably arranged at the top of the tank body (3); the bottom tank (2) is movably arranged at the bottom of the tank body (3); the bottom tank (2) is of a structure with an open top and a closed bottom; a filter element (4) is arranged in the inner cavity of the bottom tank (2); the filter element (4) is funnel-shaped, and a gap is formed between the bottom of the filter element (4) and the inner wall of the bottom tank (2); the filter element (4) divides the inner cavity of the bottom tank (2) into a first cavity and a second cavity.

2. The multi-stage sewage treatment apparatus according to claim 1, wherein the filtration unit (301) comprises a first tank wall (311) and a second tank wall (321); the first tank wall body (311) and the second tank wall body (321) are of cylindrical structures; the outer diameter of the first tank wall body (311) is larger than the outer diameter of the second tank wall body (321); the inner diameter of the first tank wall body is larger than the inner diameter of the second tank wall body (321); the filter screen (331) is circular, and the periphery of the filter screen is fixed with the inner wall of the second tank wall body (321) and the position close to the first tank wall body (311); the filter screen (331) divides the interior of the filter unit (301) into a third cavity in the first tank wall (311) and a fourth cavity in the second tank wall.

3. The multi-stage sewage treatment device according to claim 2, wherein a sealing ring (6) is further sleeved outside the top edge of the second tank wall (321); the cross section of the sealing ring (6) is L-shaped.

4. A multi-stage sewage treatment apparatus according to claim 3, wherein the top cover (1) comprises a top cover (101) and a cover body (102); the cover top (101) is arc-shaped; the cover body (102) is cylindrical, and the outer diameter of the cover body (102) is the same as the outer diameter of the first tank wall body (311); the inner diameter of the cover body (102) is the same as the outer diameter of the second tank wall body (321).

5. The multi-stage sewage treatment apparatus as claimed in claim 4, wherein the top cover (1) is provided with a first through hole at a central position thereof, and a water inlet pipe (701) is provided along an outer periphery of the first through hole.

6. The multi-stage sewage treatment apparatus according to claim 5, wherein a second through hole is provided at a central position of the bottom tank (2), and a water outlet pipe (702) is provided along an outer periphery of the second through hole.

7. The multi-stage sewage treatment apparatus according to claim 6, further comprising a first flange ring (801) and a second flange ring (802); the first flange ring (801) is fixed on the top of the water inlet pipe (701); the second flange ring (802) is fixed at the bottom of the water outlet pipe (702).

8. The multi-stage sewage treatment apparatus according to claim 7, wherein a filter material layer is laid on the filter screens (331) of the plurality of filter units (301); the pore diameter of the filtering material layer is sequentially reduced from top to bottom.

9. The multi-stage sewage treatment device according to claim 8, wherein four support columns (901) are further fixed at the bottom of the bottom tank (2), a connection bottom plate (902) is further arranged at the bottom of the support columns (901), and assembly holes (903) are formed in the connection bottom plate (902).