Anaerobic biofilter wastewater pretreatment device

By combining a multi-layer filtration structure with chemical treatment, the problem of impurity clogging in existing devices has been solved, achieving efficient wastewater filtration and stable operation.

CN224677825UActive Publication Date: 2026-08-25NANJING LESHUI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202522102287.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-25
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

Existing anaerobic biological filter wastewater pretreatment devices have a simple filtration structure, which cannot effectively intercept impurities of different sizes, leading to impurity accumulation and blockage.

Method used

It adopts a multi-layer filtration structure, including a filter screen and a filter interception screen. The connecting frame moves up and down by an electric telescopic rod. Combined with a bubbler, it forms microbubbles to dissolve the chemical agent for chemical treatment. Threaded and sleeved connections facilitate disassembly, assembly, and positioning, ensuring the integrity of the filtration structure.

Benefits of technology

It effectively intercepts wastewater impurities of different sizes, preventing blockages during subsequent treatment, achieving efficient filtration and chemical treatment of wastewater, and ensuring stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of bone flute especially anaerobic biofilter sewage pretreatment device, include: pretreatment box, the surface has anticorrosive coating, the left and right sides fixed with connecting groove strip in the upper end of pretreatment box, the water outlet box is located the front end of pretreatment box, electric telescopic link, install in the inside of connecting groove strip, the inside of electric telescopic link is provided with the connecting strip, the below of connecting strip is provided with the connecting frame, the plug -in strip is fixed in the front and back two sides outer wall of connecting frame. Through the formation of microbubble in the pretreatment box with the rising of bubble by bubbler, can make the elixir gradually dissolves in water, thereby carries out chemical treatment to sewage, the filter screen of sealing cap inner wall enters the inside of water outlet box, can when the water can filter water again, utilize electric telescopic link and can drive the up-and-down movement of connecting frame, thereby make the up-and-down movement of filter intercepting net and filter screen, the convenience staff clean filter intercepting net and filter screen.
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Description

Technical Field

[0001] This utility model relates to the field of anaerobic biological filter wastewater, and in particular to an anaerobic biological filter wastewater pretreatment device. Background Technology

[0002] Anaerobic biological filters are a type of wastewater treatment technology that purifies wastewater by decomposing organic pollutants through microorganisms in an anaerobic environment. The core of this technology lies in using solid packing materials (such as slag or ceramic rings) as a carrier to attach anaerobic microorganisms and form a biofilm. Simultaneously, suspended microorganisms decompose organic matter in the wastewater within the gaps between the packing materials. Wastewater pretreatment devices are key equipment in wastewater treatment systems, primarily used to remove suspended solids and sediments and adjust water quality, providing stable water quality for subsequent advanced treatments (such as biological treatment and reverse osmosis).

[0003] The core defect of existing technology is that the filtration structure is relatively simple and inconvenient to filter impurities of different sizes. This results in impurities remaining in the wastewater, which can lead to accumulation and blockage during subsequent operations. Utility Model Content

[0004] The purpose of this invention is to provide an anaerobic biological filter wastewater pretreatment device to solve the problem of residual impurities in the above-mentioned technical issues.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An anaerobic biological filter wastewater pretreatment device includes:

[0007] The pretreatment box has an anti-corrosion coating on its surface, and connecting grooves are fixed on the left and right sides of the upper end of the pretreatment box.

[0008] The water outlet box is located at the front end of the pretreatment tank;

[0009] An electric telescopic rod is installed inside the connecting groove, and a connecting strip is provided on the inner side of the electric telescopic rod, with a connecting frame provided below the connecting strip;

[0010] The connector strip is fixed to the front and rear outer walls of the connecting frame.

[0011] This utility model also has the following technical features:

[0012] In one embodiment of this utility model, a support foot is fixed to the bottom of the pretreatment box, and a bubbler is installed on the bottom surface of the pretreatment box.

[0013] In one embodiment of this utility model, the outer wall of the water outlet box is provided with a water outlet, and a sealing cap is provided at the upper end of the water outlet box.

[0014] In one embodiment of this utility model, a filter screen is installed on the inner wall of the sealing cover.

[0015] In one embodiment of this utility model, the surface of the connecting frame is provided with a mounting hole, and a positioning bolt passes through the interior of the mounting hole.

[0016] In one embodiment of this utility model, a filter screen is installed inside the connecting frame.

[0017] In one embodiment of this utility model, a plug rod is provided through the end of the plug strip, and a filter screen is provided at the end of the plug rod.

[0018] In one embodiment of this utility model, the plug strip and the plug rod are connected by a sleeve, and the filter screen is symmetrically distributed about the center of the connecting frame.

[0019] Compared with existing technologies, the beneficial effects of this utility model are as follows: Microbubbles are formed in the pretreatment tank by a bubbler. As the bubbles rise, the chemicals gradually dissolve in the water, thus chemically treating the wastewater. The filter screen inside the sealed cover enters the outlet box, allowing for further filtration of the water during effluent discharge. An electric telescopic rod moves the connecting frame up and down, facilitating cleaning of the filter screen and interceptor. The threaded connection between the mounting hole and the positioning bolt helps position the filter screen and facilitates disassembly and replacement, ensuring its integrity. The sleeve connection between the plug rod and the plug strip also helps position the filter screen. Furthermore, the filter screen and interceptor form a multi-layered filtration structure with different pore sizes, effectively intercepting impurities of varying sizes in the wastewater and preventing clogging during subsequent treatment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main three-dimensional structure of an anaerobic biological filter wastewater pretreatment device according to one embodiment of the present invention;

[0021] Figure 2 This is a bottom-view perspective three-dimensional structural diagram of an anaerobic biological filter wastewater pretreatment device according to one embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the filter screen and filter interception screen of an anaerobic biological filter wastewater pretreatment device according to one embodiment of the present invention.

[0023] Explanation of icon numbers:

[0024] 10. Pretreatment box; 11. Support legs; 12. Connecting groove; 13. Bubble blower;

[0025] 20. Water outlet box; 21. Water outlet; 22. Sealing cap; 23. Filter screen;

[0026] 30. Electric telescopic pole; 31. Connecting strip; 32. Connecting frame; 33. Mounting hole; 34. Positioning bolt; 35. Filter screen;

[0027] 40. Connecting strip; 41. Connecting rod; 42. Filter screen. Detailed Implementation

[0028] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0029] The illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] It should be noted that a core defect of existing anaerobic biological filter wastewater pretreatment devices is that the filtration structure is relatively simple, making it inconvenient to filter impurities of different sizes. This results in impurities remaining in the wastewater, which can lead to accumulation and blockage during subsequent operation. To address this, an anaerobic biological filter wastewater pretreatment device is proposed, comprising a pretreatment tank 10 with an anti-corrosion coating. Connecting grooves 12 are fixed to the upper left and right sides of the pretreatment tank 10. An effluent box 20 is placed at the front end of the pretreatment tank 10. An electric telescopic rod 30 is installed inside the connecting grooves 12, with a connecting strip 31 on the inner side of the electric telescopic rod 30. A connecting frame 32 is provided below the connecting strip 31. Insertion strips 40 are fixed to the front and rear outer walls of the connecting frame 32.

[0031] In one embodiment, a support foot 11 is fixed to the bottom of the pretreatment tank 10, and a bubbler 13 is installed on the bottom surface of the pretreatment tank 10. The bubbler 13 forms tiny bubbles in the pretreatment tank 10. As the bubbles rise, the agent can gradually dissolve in the water, thereby chemically treating the wastewater.

[0032] In one embodiment, the outer wall of the water outlet box 20 is provided with a water outlet 21, and a sealing cap 22 is provided at the upper end of the water outlet box 20.

[0033] In one embodiment, a filter screen 23 is installed on the inner wall of the sealing cover 22. The filter screen 23 on the inner wall of the sealing cover 22 enters the interior of the water outlet box 20, which can filter the water again when the water is discharged.

[0034] In one embodiment, the surface of the connecting frame 32 is provided with a mounting hole 33, and a positioning bolt 34 passes through the interior of the mounting hole 33.

[0035] In one embodiment, a filter screen 35 is installed inside the connecting frame 32. The threaded connection between the mounting hole 33 and the positioning bolt 34 facilitates the positioning of the filter screen 35 and also facilitates disassembly and assembly, thereby replacing the filter screen 35 with a new one and ensuring the integrity of the filter screen 35. The connecting frame 32 can be moved up and down by the electric telescopic rod 30, thereby moving the filter screen 35 and the filter screen 42 up and down, making it convenient for staff to clean the filter screen 35 and the filter screen 42.

[0036] In one embodiment, the end of the connector strip 40 is provided with a connector rod 41, and the end of the connector rod 41 is provided with a filter screen 42.

[0037] In one embodiment, the plug strip 40 and the plug rod 41 are connected by a sleeve. The filter screen 42 is symmetrically distributed about the center of the connecting frame 32. The sleeve connection between the plug rod 41 and the plug strip 40 facilitates the positioning of the filter screen 42. Furthermore, the filter screen 42 and the filter interception net 35 form a multi-layered filtration structure. The filter screen 42 and the filter interception net 35 have different pore sizes, which can effectively intercept impurities of different sizes in the sewage and avoid clogging caused by impurities in subsequent treatment.

[0038] In one embodiment, see Figure 1 and Figure 2 Microbubbles are formed in the pretreatment tank 10 by the bubbler 13. As the bubbles rise, the chemicals gradually dissolve in the water, thus chemically treating the wastewater. The filter screen 23 on the inner wall of the sealing cover 22 enters the interior of the outlet box 20, which can filter the water again when it is discharged. The electric telescopic rod 30 can drive the connecting frame 32 to move up and down, thereby moving the filter interception net 35 and the filter screen 42 up and down, making it convenient for staff to clean the filter interception net 35 and the filter screen 42.

[0039] In one embodiment, see Figure 3The threaded connection between the mounting hole 33 and the positioning bolt 34 facilitates the positioning of the filter screen 35 and also facilitates disassembly and assembly, allowing for the replacement of the filter screen 35 with a new one, ensuring the integrity of the filter screen 35. The sleeve connection between the plug rod 41 and the plug strip 40 facilitates the positioning of the filter screen 42. Furthermore, the filter screen 42 and the filter screen 35 form a multi-layered filtration structure, and the filter screen 42 and the filter screen 35 have different pore sizes, which can effectively intercept impurities of different sizes in the sewage, avoiding clogging caused by impurities in subsequent treatment.

[0040] In summary, this utility model provides an anaerobic biological filter wastewater pretreatment device. By activating the electric telescopic rod 30 to move the connecting frame 32 to its uppermost position, and inserting the plug rod 41 into the plug strip 40, the filter screen 42 can be installed on both the front and rear sides of the connecting frame 32. After installation, the electric telescopic rod 30 is activated again to place the connecting frame 32 inside the pretreatment tank 10. The filter screen 42 and the filter interception net 35 form a multi-layered filtration structure. The filter screen 42 and the filter interception net 35 have different pore sizes, effectively intercepting impurities of different sizes in the wastewater. Simultaneously, the bubbler 13 generates microbubbles in the pretreatment tank 10. As the bubbles rise, the chemicals gradually dissolve in the water, thus chemically treating the wastewater. Finally, the pretreated wastewater is discharged from the outlet 21 of the outlet box 20. The outlet box 20 contains a filter screen 23, which can further filter the water during effluent discharge.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater pretreatment device for an anaerobic biological filter, characterized in that, include: The pretreatment box (10) is coated with an anti-corrosion coating, and the upper left and right sides of the pretreatment box (10) are fixed with connecting grooves (12); The water outlet box (20) is located at the front end of the pretreatment tank (10); An electric telescopic rod (30) is installed inside the connecting groove (12). A connecting strip (31) is provided on the inner side of the electric telescopic rod (30), and a connecting frame (32) is provided below the connecting strip (31). The connector strip (40) is fixed to the front and rear outer walls of the connecting frame (32).

2. The anaerobic biological filter wastewater pretreatment device according to claim 1, characterized in that, The bottom of the pretreatment box (10) is fixed with a support foot (11), and a bubbler (13) is installed on the bottom surface of the pretreatment box (10).

3. The anaerobic biological filter wastewater pretreatment device according to claim 1, characterized in that, The water outlet box (20) has an outlet (21) on its outer wall and a sealing cap (22) on its upper end.

4. The anaerobic biological filter wastewater pretreatment device according to claim 3, characterized in that, A filter screen (23) is installed on the inner wall of the sealing cover (22).

5. The anaerobic biological filter wastewater pretreatment device according to claim 1, characterized in that, The surface of the connecting frame (32) is provided with a mounting hole (33), and a positioning bolt (34) is inserted inside the mounting hole (33).

6. The anaerobic biological filter wastewater pretreatment device according to claim 1, characterized in that, The connecting frame (32) is equipped with a filter screen (35).

7. The anaerobic biological filter wastewater pretreatment device according to claim 1, characterized in that, The end of the connector strip (40) is provided with a connector rod (41), and the end of the connector rod (41) is provided with a filter screen (42).

8. The anaerobic biological filter wastewater pretreatment device according to claim 7, characterized in that, The plug strip (40) and the plug rod (41) are connected by a sleeve, and the filter screen (42) is symmetrically distributed about the center of the connecting frame (32).