Sewage treatment filtering device

Abstract

The utility model discloses a sewage treatment filtering device, which relates to the field of sewage treatment and comprises a filtering device, a cleaning structure and a backwashing device, and the backwashing device is fixed between an air inlet pipe and a cleaning liquid inlet pipe of the cleaning structure. An air-water combined backwashing effect is achieved in the cleaning structure; the control structure is fixed to the outer side of a device shell of the backwashing device and plays a role in controlling the pressure intensity of airflow and water flow in the backwashing device, according to the sewage treatment filtering device, filtering materials in the filtering device can be effectively washed through the backwashing device, strong impact force is formed through the combined effect of gas and water, and therefore the filtering effect is improved. In addition, a pulse type backwashing technology is used, and the filter material layer is vibrated and loosened through intermittent high-pressure water flow and air flow impact, so that the cleaning effect is further improved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a sewage treatment filtering device. Background Art

[0002] Sewage treatment filtration device is used to separate impurities, suspended matter, microorganisms and other harmful substances in sewage from water to purify water quality. It is widely used in industry, agriculture, medical and other fields, and is an important equipment for protecting the environment and maintaining water quality safety.

[0003] In the field of sewage treatment and filtration, backwashing is a commonly used cleaning method in filtration devices, but its effect is often limited by the structural design. Traditional backwashing methods may have problems such as uneven cleaning and insufficient force, resulting in incomplete cleaning of the filter material. There is still room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage treatment and filtering device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage treatment filter device, comprising a filter device and a cleaning structure, wherein the cleaning structure is fixedly connected to the inner wall of the bottom of the filter device;

[0006] Backwashing device, the backwashing device is fixed between the air inlet pipe of the cleaning structure and the water inlet pipe of the cleaning liquid, and plays the role of air-water combined backwashing in the cleaning structure;

[0007] The control structure is fixed on the outside of the device shell of the backwash device and plays a role in controlling the air flow and water flow pressure in the backwash device.

[0008] Preferably, the filtering device includes a filter cartridge housing, an inlet flange, an outlet flange, a clean water inlet pipe and filter material. The top of the filter cartridge housing is fixedly connected to the water inlet flange, the bottom of the filter cartridge housing is fixedly connected to the water outlet flange, the top outer side of the filter cartridge housing is fixedly connected to the clean water inlet pipe, and the inside of the filter cartridge housing is fixedly connected to the filter material.

[0009] Preferably, the cleaning structure includes an air inlet pipe, a cleaning liquid inlet pipe and a backwashing device, the air inlet pipe is fixed on one side of the bottom of the filter cartridge housing, the cleaning liquid inlet pipe is fixed on the other side of the bottom of the filter cartridge housing, and a backwashing device is fixedly connected between the air inlet pipe and the cleaning liquid inlet pipe.

[0010] Preferably, the backwash device includes a device shell, a cleaning liquid transmission pipe, a water inlet pipe, a shunt pipe, an air inlet pipe body, a control structure, a turbine and a cover plate. The control structure is fixedly connected to the outside of the device shell. The control structure is provided in several groups and is evenly arranged on the outside of the device shell. One group of control structures is connected to the cleaning liquid transmission pipe, and the end of the cleaning liquid transmission pipe is fixedly connected to the water inlet pipe. The remaining control structures are fixedly connected to the outside of the shunt pipes. The shunt pipes are provided in several groups and are evenly arranged on the outside of the control structures. The end of one group of shunt pipes is fixed with the air inlet pipe body. The top of the device shell is fixedly connected to the cover plate, and the bottom of the cover plate is fixedly connected to the turbine.

[0011] Preferably, except for the group of shunt pipes fixed to the air intake pipe body, the rest of the shunt pipes are structures with closed ends and spray holes opened on the top, and the group of shunt pipes fixed to the air intake pipe body are designed to be through openings.

[0012] Preferably, the control structure includes an open tube body, a rotating valve, a rotating shaft, a first connecting rod, a second connecting rod and a telescopic cylinder. The open tube body is a through-type design. An opening is provided in the center of the open tube body. A rotating shaft is rotatably connected in the opening. A rotating valve is fixedly connected to the outer side of the bottom of the rotating shaft. The top outer wall of the rotating shaft is fixedly connected to one end of the first connecting rod. The other end of the first connecting rod is rotatably connected to one end of the second connecting rod through a pin. The other end of the second connecting rod is rotatably connected to one end of the telescopic cylinder through a pin. The other end of the telescopic cylinder is fixed to the outer wall of the open tube body.

[0013] Preferably, the backwashing device of the cleaning structure is located directly below the filter material of the filtering device.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model proposes a sewage treatment filter device, comprising a filter device and a cleaning structure, wherein the inner wall at the bottom of the filter device is fixedly connected with the cleaning structure; a backwashing device, which is fixed between an air inlet pipe of the cleaning structure and a water inlet pipe of a cleaning liquid, and plays a role of combined air and water backwashing in the cleaning structure; a control structure, which is fixed to the outer side of a device shell of the backwashing device, and plays a role of controlling airflow and water flow pressure in the backwashing device. The sewage treatment filter device can effectively wash the filter material in the filter device by using the backwashing device, and use the combined effect of gas and water to form a strong impact force, so as to effectively remove dirt and blockages on the surface of the filter material. In addition, a pulse backwashing technology is used, and the filter material layer is vibrated and loosened by intermittent high-pressure water and airflow impact, so as to further improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1This is a disassembled cross-sectional view of the sewage treatment and filtering device of the utility model;

[0018] Figure 2 This is a schematic diagram of the sewage treatment and filtering device of the utility model;

[0019] Figure 3 This is a disassembly diagram of the backwashing device of the sewage treatment and filtering device of the utility model;

[0020] Figure 4 This is a cross-sectional view of the control structure of the sewage treatment and filtering device of the utility model.

[0021] In the figure: 1. Filter device; 2. Cleaning structure; 3. Filter cartridge housing; 4. Water inlet flange; 5. Water outlet flange; 6. Clean water inlet pipe; 7. Filter material; 8. Air inlet pipe; 9. Cleaning liquid inlet pipe; 10. Backwashing device; 11. Device housing; 12. Cleaning liquid transmission pipe; 13. Water inlet pipe; 14. Diverter pipe; 15. Inlet pipe body; 16. Spray hole; 17. Control structure; 18. Turbine; 19. Cover plate; 20. Open pipe body; 21. Rotating valve; 22. Rotating shaft; 23. First connecting rod; 24. Second connecting rod; 25. Telescopic cylinder. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0023] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0027] Embodiment 1

[0028] See also Figures 1 to 4 , the utility model provides a technical solution: a sewage treatment filter device, comprising a filter device 1 and a cleaning structure 2, wherein the cleaning structure 2 is fixedly connected to the inner wall of the bottom of the filter device 1;

[0029] The backwashing device 10 is fixed between the air inlet pipe 8 and the cleaning liquid inlet pipe 9 of the cleaning structure 2, and plays an air-water combined backwashing role in the cleaning structure 2;

[0030] A control structure 17, the control structure 17 is fixed to the outside of the device housing 11 of the backwash device 10, and plays a role in controlling the air flow and water flow pressure in the backwash device 10;

[0031] The sewage treatment filter device utilizes a backwashing device 10 to effectively flush the filter material in the filter device 1, and utilizes the combined action of gas and water to form a powerful impact force to effectively remove dirt and blockages on the surface of the filter material. In addition, a pulse backwashing technology is used to vibrate and loosen the filter material layer through intermittent high-pressure water and air flow impacts, thereby further improving the cleaning effect.

[0032] Embodiment 2

[0033] On the basis of the first embodiment, the filter device 1 includes a filter cartridge housing 3, a water inlet flange 4, a water outlet flange 5, a clean water inlet pipe 6 and a filter material 7. The top of the filter cartridge housing 3 is fixedly connected to the water inlet flange 4, the bottom of the filter cartridge housing 3 is fixedly connected to the water outlet flange 5, the top outer side of the filter cartridge housing 3 is fixedly connected to the clean water inlet pipe 6, and the inside of the filter cartridge housing 3 is fixedly connected to the filter material 7;

[0034] When in use, sewage enters the filter cartridge housing 3 through the water inlet flange 4, the clean water inlet pipe 6 sprays clean water through an external water pipe, the sewage mixed with the clean water is filtered through the filter material 7, and the filtered sewage is discharged to the outside through the water outlet flange 5;

[0035] The cleaning structure 2 includes an air inlet pipe 8, a cleaning liquid inlet pipe 9 and a backwashing device 10. The air inlet pipe 8 is fixed to one side of the bottom of the filter cartridge housing 3, and the cleaning liquid inlet pipe 9 is fixed to the other side of the bottom of the filter cartridge housing 3. The backwashing device 10 is fixedly connected between the air inlet pipe 8 and the cleaning liquid inlet pipe 9.

[0036] The backwashing device 10 of the cleaning structure 2 is located directly below the filter material 7 of the filter device 1;

[0037] After the filtration is completed, the air inlet pipe 8 takes in air through the external high-pressure airflow pipe, and the cleaning liquid inlet pipe 9 sprays the cleaning liquid inward through the external cleaning liquid pipe. After mixing in the backwashing device 10, it is sprayed toward the top to spray and wash the filter material 7.

[0038] Embodiment 3

[0039] On the basis of the second embodiment, the backwash device 10 includes a device housing 11, a cleaning liquid transmission pipe 12, a water inlet pipe 13, a shunt pipe 14, an air inlet pipe body 15, a control structure 17, a turbine 18 and a cover plate 19. The control structure 17 is fixedly connected to the outside of the device housing 11. The control structure 17 is provided in several groups and is evenly arranged on the outside of the device housing 11. One group of control structures 17 is connected to the cleaning liquid transmission pipe 12, and the end of the cleaning liquid transmission pipe 12 is fixedly connected to the water inlet pipe 13. The outside of the remaining control structures 17 is fixedly connected to the shunt pipe 14. The shunt pipe 14 is provided in several groups and is evenly arranged on the outside of the control structure 17. The end of one group of shunt pipes 14 is fixed with the air inlet pipe body 15. The top of the device housing 11 is fixedly connected to the cover plate 19, and the bottom of the cover plate 19 is fixedly connected to the turbine 18.

[0040] Except for the group of shunt pipes 14 fixed to the air intake pipe body 15, the rest of the shunt pipes 14 are all closed at the ends and have a spray hole 16 at the top. The group of shunt pipes 14 fixed to the air intake pipe body 15 is a through opening design.

[0041] When in use, the air inlet pipe body 15 guides the external high-pressure airflow to the inside of the device housing 11 through the shunt pipe 14. At the same time, the water inlet pipe 13 guides the external cleaning liquid to the inside of the device housing 11 through the cleaning liquid transmission pipe 12. After the internal turbine 18 rotates and mixes, it is sprayed outward through the spray hole 16 of the shunt pipe 14 to complete the cleaning. The control structure 17 can control the spray pressure to achieve intermittent spraying.

[0042] The control structure 17 includes an open tube body 20, a rotating valve 21, a rotating shaft 22, a first connecting rod 23, a second connecting rod 24 and a telescopic cylinder 25. The open tube body 20 is a through-type design. An opening is provided in the center of the open tube body 20. The rotating shaft 22 is rotatably connected in the opening. The rotating valve 21 is fixedly connected to the outer side of the bottom of the rotating shaft 22. The outer wall of the top of the rotating shaft 22 is fixedly connected to one end of the first connecting rod 23. The other end of the first connecting rod 23 is rotatably connected to one end of the second connecting rod 24 through a pin. The other end of the second connecting rod 24 is rotatably connected to one end of the telescopic cylinder 25 through a pin. The other end of the telescopic cylinder 25 is fixed to the outer wall of the open tube body 20.

[0043] During use, with the telescopic displacement of the telescopic cylinder 25, the second connecting rod 24 and the first connecting rod 23 are driven to swing. When the first connecting rod 23 swings, it drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the rotating valve 21 to rotate. With the rotation of the rotating valve 21, the inside of the open tube body 20 opens and closes, and the high-pressure gas and cleaning liquid entering the device housing 11 are intermittently discharged, thereby increasing the pressure during spraying. It should be noted that the two groups of control structures 17 corresponding to the water inlet pipe 13 and the air inlet pipe body 15 do not work, to ensure that the air flow and water flow can smoothly enter the inside of the device housing 11.

[0044] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A sewage treatment filter device, comprising a filter device (1) and a cleaning structure (2), characterized in that: A cleaning structure (2) is fixedly connected to the inner wall of the bottom of the filtering device (1); A backwashing device (10), the backwashing device (10) is fixed between the air inlet pipe (8) and the cleaning liquid inlet pipe (9) of the cleaning structure (2), and plays an air-water combined backwashing role in the cleaning structure (2); The control structure (17) is fixed to the outside of the device housing (11) of the backwashing device (10) and plays a role in controlling the air flow and water flow pressure in the backwashing device (10).

2. A sewage treatment and filtering device according to claim 1, characterized in that: The filtering device (1) comprises a filter cartridge housing (3), a water inlet flange (4), a water outlet flange (5), a clean water inlet pipe (6) and a filter material (7); the top end of the filter cartridge housing (3) is fixedly connected to the water inlet flange (4); the bottom end of the filter cartridge housing (3) is fixedly connected to the water outlet flange (5); the top outer side of the filter cartridge housing (3) is fixedly connected to the clean water inlet pipe (6); and the inside of the filter cartridge housing (3) is fixedly connected to the filter material (7).

3. A sewage treatment and filtering device according to claim 1, characterized in that: The cleaning structure (2) comprises an air inlet pipe (8), a cleaning liquid inlet pipe (9) and a backwashing device (10); the air inlet pipe (8) is fixed to one side of the bottom of the filter cartridge housing (3); the cleaning liquid inlet pipe (9) is fixed to the other side of the bottom of the filter cartridge housing (3); and the backwashing device (10) is fixedly connected between the air inlet pipe (8) and the cleaning liquid inlet pipe (9).

4. A sewage treatment and filtering device according to claim 3, characterized in that: The backwashing device (10) comprises a device housing (11), a cleaning liquid transmission pipe (12), a water inlet pipe (13), a shunt pipe (14), an air inlet pipe body (15), a control structure (17), a turbine (18) and a cover plate (19). The control structure (17) is fixedly connected to the outside of the device housing (11). The control structure (17) is provided in a plurality of groups and is evenly arranged on the outside of the device housing (11). One group of the control structures (17) is connected to the cleaning liquid transmission pipe (12). The end of the cleaning liquid transmission pipe (12) is fixedly connected to the water inlet pipe (13). The outside of the remaining control structures (17) is fixedly connected to the shunt pipe (14). The end of one group of the shunt pipes (14) is fixedly connected to the air inlet pipe body (15). The top of the device housing (11) is fixedly connected to the cover plate (19). The bottom of the cover plate (19) is fixedly connected to the turbine (18).

5. A sewage treatment and filtering device according to claim 4, characterized in that: Except for a group of shunt pipes (14) fixed to the air intake pipe body (15), the rest of the shunt pipes (14) are of a structure with closed ends and a spray hole (16) opened at the top. The group of shunt pipes (14) fixed to the air intake pipe body (15) is of a through-opening design.

6. A sewage treatment and filtering device according to claim 1, characterized in that: The control structure (17) comprises an open tube body (20), a rotating valve (21), a rotating shaft (22), a first connecting rod (23), a second connecting rod (24) and a telescopic cylinder (25); the open tube body (20) is of a through-type design; an opening is provided in the center of the open tube body (20); a rotating shaft (22) is rotatably connected in the opening; a rotating valve (21) is fixedly connected to the outer side of the bottom of the rotating shaft (22); an outer wall of the top of the rotating shaft (22) is fixedly connected to one end of the first connecting rod (23); the other end of the first connecting rod (23) is rotatably connected to one end of the second connecting rod (24) through a pin; the other end of the second connecting rod (24) is rotatably connected to one end of the telescopic cylinder (25) through a pin; and the other end of the telescopic cylinder (25) is fixed to the outer wall of the open tube body (20).

7. A sewage treatment and filtering device according to claim 1, characterized in that: The backwashing device (10) of the cleaning structure (2) is located directly below the filter material (7) of the filtering device (1).

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