Backwashing structure of three-phase separator of sewage treatment anaerobic tower

By designing a backwashing structure for the three-phase separator of the anaerobic tower in wastewater treatment, and using wastewater from the anaerobic tower for automated cleaning, the problems of water waste and low cleaning efficiency caused by external water sources are solved, achieving efficient, economical, and continuous cleaning results.

CN223866454UActive Publication Date: 2026-02-03麦焘环境科技(上海)有限公司
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Patent Information

Application Number
CN202520368877.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-02-03
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

In existing technologies, cleaning the three-phase separator of an anaerobic tower in wastewater treatment requires an external water source, which leads to water waste and low cleaning efficiency.

Method used

A backwashing structure for a three-phase separator in an anaerobic tower for wastewater treatment was designed. The wastewater treated by the anaerobic tower is backwashed through a water conveying assembly and a flushing mechanism. Combined with a buoyancy ring and a self-sealing mechanism, automated cleaning is achieved, avoiding idling.

Benefits of technology

It achieves efficient cleaning without the need for an external water source, saving water resources, and ensures the continuity and efficiency of cleaning through a buoyancy ring and a self-sealing mechanism.

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Abstract

The utility model relates to the technical field of anaerobic tower three-phase separator cleaning, in particular to a backwashing structure of a sewage treatment anaerobic tower three-phase separator, which comprises an anaerobic tower body and a three-phase separator arranged in the top end of the anaerobic tower body, the output end of the water conveying assembly is connected with a flushing mechanism located at the top of the three-phase separator, a filtering mechanism is installed at the water inlet end of the water conveying assembly, and a buoyancy ring is arranged at the top end of the filtering mechanism. And wastewater treated by the anaerobic tower body is matched with the flushing mechanism to perform back flushing work on the three-phase separator, so that an external water source is not needed, and water resources are saved.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning technology for anaerobic tower three-phase separators, specifically a backwashing structure for a wastewater treatment anaerobic tower three-phase separator. Background Technology

[0002] The anaerobic tower three-phase separator is the core component of the anaerobic reactor. It is mainly used to efficiently separate the gas, liquid and solid phases (biogas, treated water and sludge) to ensure the stable operation of the reactor.

[0003] The three-phase separator prevents sludge and impurities from floating during use, effectively separating solid impurities such as sludge. During operation, high-pressure water is sprayed at a specific angle and pressure through nozzles to flush the sedimentation zone, inclined plates, and sludge return slits of the separator. The impact of the high-pressure water washes away the sludge and impurities adhering to these areas, allowing them to flow out of the separator and preventing their accumulation, thus ensuring the separation efficiency of the three-phase separator. Cleaning is primarily done via an external water source connected to a high-pressure pump, as it is not convenient to use wastewater from the anaerobic digester for cleaning the three-phase separator. Utility Model Content

[0004] The purpose of this invention is to provide a backwashing structure for a three-phase separator in an anaerobic tower for wastewater treatment, so as to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: a backwashing structure for a three-phase separator in an anaerobic tower for sewage treatment, including an anaerobic tower body and a three-phase separator installed inside the top of the anaerobic tower body. A water conveying assembly is installed on the top of the three-phase separator. The output end of the water conveying assembly is connected to a flushing mechanism located on the top of the three-phase separator. A filtration mechanism is installed at the inlet end of the water conveying assembly. A buoyancy ring is provided at the top of the filtration mechanism.

[0006] The effects achieved by the above components are as follows: the wastewater filtered by the filtration mechanism can be pumped to the flushing mechanism through the water conveying component. The wastewater treated by the anaerobic tower can be used in conjunction with the flushing mechanism to backwash the three-phase separator. No external water source is required, saving water resources. In addition, the buoyancy ring can change with the liquid level in the anaerobic tower, so that the filtration mechanism is always below the liquid level, allowing the water conveying component to perform the pumping operation and avoiding dry running.

[0007] Preferably, the filtration mechanism includes a connecting ring installed on the water inlet end of the water supply component, a filter screen cylinder fixed at the bottom of the connecting ring, and a self-sealing mechanism installed at the top of the filter screen cylinder.

[0008] The above components achieve the following effects: the connecting ring facilitates the connection of the filter screen cylinder to the water conveying assembly; the filter screen cylinder can filter the wastewater entering the water conveying assembly; and the self-sealing mechanism can be in the open state when the water conveying assembly is in the suction chamber and automatically close when the water conveying assembly stops.

[0009] Preferably, the self-sealing mechanism includes a fixing ring embedded at the top of the filter cylinder, an elastic conical member extending into the connecting ring is fixed at the top of the fixing ring, the outer wall of the elastic conical member has multiple expansion slits, and a magnetic block is embedded at the top of the fixing ring.

[0010] The above components achieve the following effects: the magnetic block allows the fixing ring to be easily attached to the bottom of the connecting ring; the elastic conical part can open when pumping water and return to a conical closed state after pumping stops, thus automatically sealing the water inlet of the water supply component.

[0011] Preferably, the water delivery assembly includes a submersible pump fixed on the three-phase separator, an output pipe connected to the flushing mechanism fixed at the output end of the submersible pump, an inlet hose connected to the connecting ring fixed at the inlet end of the submersible pump, and a buoyancy ring fixed on the inlet hose.

[0012] The effect achieved by the above components is that the submersible pump, in conjunction with the inlet hose, can draw the wastewater treated by the anaerobic tower to the outlet pipe, thereby achieving the purpose of pressurized water supply for flushing.

[0013] Preferably, the rinsing mechanism includes a U-shaped tube connected to the output tube, two sets of symmetrical spray pipes are installed on the U-shaped tube, and multiple equally spaced nozzles are connected to the bottom of the spray pipes.

[0014] The effect achieved by the above components is that the cleaning water can be sprayed onto the three-phase separator through the U-shaped pipe and the nozzle on the spray pipe to perform backwashing cleaning.

[0015] This utility model provides an improved backwashing structure for a three-phase separator in an anaerobic wastewater treatment tower, which, compared with the prior art, has the following improvements and advantages:

[0016] Firstly, this utility model can draw the wastewater filtered by the filtration mechanism to the flushing mechanism through the water conveying component. The wastewater treated by the anaerobic tower is used in conjunction with the flushing mechanism to backwash the three-phase separator. No external water source is required, which saves water resources. In addition, the buoyancy ring can change with the liquid level in the anaerobic tower, so that the filtration mechanism is always below the liquid level, which allows the water conveying component to perform the suction work and avoids dry running.

[0017] Secondly, this utility model uses a magnetic block to facilitate the fixation ring to be adsorbed at the bottom of the connecting ring, and the elastic conical part can open when pumping water and return to a conical closed state after pumping stops, thus automatically sealing the water inlet of the water conveying component. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the rinsing mechanism in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the filtration mechanism in this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the self-sealing structural component in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Anaerobic tower body; 2. Three-phase separator; 3. Water supply assembly; 31. Submersible pump; 32. Output pipe; 33. Inlet hose; 4. Flushing mechanism; 41. U-shaped pipe; 42. Spray pipe; 43. Spray head; 5. Buoyancy ring; 6. Filtration mechanism; 61. Connecting ring; 62. Filter screen cylinder; 63. Self-sealing mechanism; 631. Fixing ring; 632. Elastic conical component; 633. Magnetic block. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0026] This utility model provides an improved backwashing structure for a three-phase separator in an anaerobic wastewater treatment tower. The technical solution of this utility model is as follows:

[0027] In embodiments of this utility model, such as Figures 1-4As shown, a backwashing structure for a three-phase separator in an anaerobic tower for wastewater treatment includes an anaerobic tower body 1 and a three-phase separator 2 installed inside the top of the anaerobic tower body 1. A water conveying assembly 3 is installed on the top of the three-phase separator 2. The water conveying assembly 3 includes a submersible pump 31 fixed to the three-phase separator 2. An output pipe 32 connected to a flushing mechanism 4 is fixed to the output end of the submersible pump 31. An inlet hose 33 connected to a connecting ring 61 is fixed to the inlet end of the submersible pump 31. A buoyancy ring 5 is fixed to the inlet hose 33. The submersible pump 31 can cooperate with the inlet water flow. The hose 33 draws the wastewater treated by the anaerobic tower 1 to the output pipe 32, achieving the purpose of pressurized water supply for flushing. The output end of the water supply assembly 3 is connected to the flushing mechanism 4 located at the top of the three-phase separator 2. The flushing mechanism 4 includes a U-shaped pipe 41 connected to the output pipe 32. Two sets of symmetrical spray pipes 42 are installed on the U-shaped pipe 41. Multiple equally spaced nozzles 43 are connected to the bottom of the spray pipes 42. Through the U-shaped pipe 41 and the nozzles 43 on the spray pipes 42, cleaning water can be sprayed onto the three-phase separator 2 for backwashing and cleaning. In operation, a filter mechanism 6 is installed at the inlet end of the water conveying assembly 3. The filter mechanism 6 includes a connecting ring 61 installed on the inlet end of the water conveying assembly 3. A filter screen cylinder 62 is fixed at the bottom of the connecting ring 61, and a self-sealing mechanism 63 is installed at the top of the filter screen cylinder 62. The connecting ring 61 facilitates the connection between the filter screen cylinder 62 and the water conveying assembly 3. The filter screen cylinder 62 can filter the wastewater entering the water conveying assembly 3, while the self-sealing mechanism 63 can be in an open state when the water conveying assembly 3 is in the suction working chamber. The water conveying assembly 3, the self-sealing mechanism 63 includes embedded... A fixing ring 631 is provided at the top of the filter cylinder 62. An elastic conical member 632 extending into the connecting ring 61 is fixed at the top of the fixing ring 631. Multiple expansion slits are opened on the outer wall of the elastic conical member 632. A magnetic block 633 is embedded at the top of the fixing ring 631. The magnetic block 633 can facilitate the fixing ring 631 to be attracted to the bottom of the connecting ring 61. The elastic conical member 632 can open when pumping water and return to a conical closed state after pumping stops, so as to automatically seal the water inlet end of the water supply component 3. A buoyancy ring 5 is provided at the top of the filter mechanism 6.

[0028] The working principle of the backwashing structure of the three-phase separator in the anaerobic tower for wastewater treatment provided by this utility model is as follows: The submersible pump 31, in conjunction with the inlet hose 33, can pump the wastewater filtered by the filter mechanism 6 to the flushing mechanism 4. The nozzles 43 on the U-shaped pipe 41 and the spray pipe 42 can spray cleaning water onto the three-phase separator 2 for backwashing cleaning. The connecting ring 61 facilitates the connection of the filter screen cylinder 62 to the water conveying assembly 3. The filter screen cylinder 62 can filter the wastewater entering the water conveying assembly 3. The magnetic block 633 can... The fixed ring 631 is easily attached to the bottom of the connecting ring 61. The elastic conical part 632 can open when pumping water and return to a conical closed state after pumping stops, which automatically seals the water inlet of the water conveying component 3. The wastewater treated by the anaerobic tower 1 is used in conjunction with the flushing mechanism 4 to backwash the three-phase separator 2. No external water source is required, which saves water resources. In addition, the buoyancy ring 5 can change with the liquid level of the anaerobic tower 1, so that the filtration mechanism 6 is always below the liquid level, so that the water conveying component 3 can perform suction work and avoid dry running.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A backwashing structure for a three-phase separator in an anaerobic tower for wastewater treatment, comprising an anaerobic tower body (1) and a three-phase separator (2) installed inside the top of the anaerobic tower body (1), characterized in that: The three-phase separator (2) is equipped with a water supply assembly (3) on top. The output end of the water supply assembly (3) is connected to a flushing mechanism (4) located on top of the three-phase separator (2). The water inlet end of the water supply assembly (3) is equipped with a filter mechanism (6). The top of the filter mechanism (6) is provided with a buoyancy ring (5).

2. The backwashing structure of a three-phase separator for anaerobic wastewater treatment as described in claim 1, characterized in that: The filtration mechanism (6) includes a connecting ring (61) installed on the water inlet end of the water supply assembly (3), a filter screen cylinder (62) is fixed at the bottom of the connecting ring (61), and a self-sealing mechanism (63) is installed at the top of the filter screen cylinder (62).

3. The backwashing structure of a three-phase separator for anaerobic wastewater treatment as described in claim 2, characterized in that: The self-sealing mechanism (63) includes a fixing ring (631) embedded at the top of the filter cylinder (62). The top of the fixing ring (631) is fixed with an elastic conical member (632) extending into the connecting ring (61). The outer wall of the elastic conical member (632) is provided with multiple expansion slits. A magnetic block (633) is embedded at the top of the fixing ring (631).

4. The backwashing structure of a three-phase separator for anaerobic wastewater treatment as described in claim 2, characterized in that: The water delivery assembly (3) includes a submersible pump (31) fixed on the three-phase separator (2). The output end of the submersible pump (31) is fixed with an output pipe (32) connected to the flushing mechanism (4). The inlet end of the submersible pump (31) is fixed with an inlet hose (33) connected to the connecting ring (61). The buoyancy ring (5) is fixed on the inlet hose (33).

5. The backwashing structure of a three-phase separator for anaerobic wastewater treatment as described in claim 4, characterized in that: The rinsing mechanism (4) includes a U-shaped pipe (41) connected to the output pipe (32), and two sets of symmetrical spray pipes (42) are installed on the U-shaped pipe (41). Multiple equally spaced nozzles (43) are connected to the bottom of the spray pipes (42).