Organic wastewater treatment device capable of recycling biogas

Abstract

The utility model discloses an organic wastewater treatment device capable of recovering biogas, which relates to the technical field of wastewater treatment and comprises a bottom plate, a reservoir is mounted at the top of the bottom plate, a guide frame is fixed on the inner wall of the reservoir, a grating for filtering suspended solids in sewage is slidably connected to the inner wall of the guide frame, and a water outlet is formed in the bottom plate. A cleaning assembly used for dredging the grating is arranged in the water storage tank. The device has the beneficial effects that the filter holes in the grid are dredged through the push block, the grid is prevented from being blocked, the filtering effect is ensured, the pull rope is pulled to drive the collection box to slide on the outer side of the limiting rod, the scraper is driven to scrape and clean the surface of the grid, the floating cover floats up and down along with the biogas generation amount in the sealing tank, and the biogas is collected; the sealing performance between the floating cover and the inner wall of the sealing tank is ensured through the sealing gasket, biogas leakage is prevented, and the collected biogas is recycled through the connecting hose.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an organic wastewater treatment device capable of recovering biogas. Background Technology

[0002] Organic wastewater treatment refers to the process of purifying wastewater containing large amounts of organic pollutants. This type of wastewater typically originates from industrial production, agricultural activities, or domestic sewage discharge. It is characterized by high chemical oxygen demand (COD) and biochemical oxygen demand (BOD). If discharged directly without treatment, it can lead to eutrophication of water bodies, reduced dissolved oxygen, and consequently damage aquatic ecosystems and threaten human health.

[0003] Existing wastewater treatment devices typically filter wastewater through screens. However, screens can become clogged over time, reducing flow capacity and wastewater treatment volume. Frequent shutdowns for cleaning or replacing screens increase maintenance costs. Furthermore, they cannot treat biogas present in the wastewater. Untreated biogas is directly released into the atmosphere, significantly increasing greenhouse gas emissions. Without effective recovery, this not only wastes resources but also causes environmental, safety, and economic problems. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An organic wastewater treatment device capable of recovering biogas includes a base plate, a water storage tank installed on the top of the base plate, a guide frame fixed to the inner wall of the water storage tank, a grid for filtering suspended solids in the wastewater slidably connected to the inner wall of the guide frame, a cleaning component for unblocking the grid inside the water storage tank, a first water pump connected to one side of the water storage tank via a pipe, a sealed tank connected to the outlet of the first water pump via a pipe, a biogas recovery component inside the sealed tank, and a collection tank installed on the top of the base plate.

[0007] The cleaning assembly includes a guide rod fixed to the inner wall of the water storage tank, a connecting frame slidably connected to the outer side of the guide rod, and a plurality of push blocks for unblocking the bar screen fixed on one side of the connecting frame.

[0008] The recycling assembly includes a floating cover disposed inside a sealed container, with a sealing gasket on the outside of the floating cover and a connecting hose connected to the inner wall of the floating cover.

[0009] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas described in this utility model, the inner wall of the water storage tank is fixed with a limiting rod, a collection box is slidably connected to the outer side of the limiting rod, and a scraper for cleaning the grid is fixed to one side of the collection box by bolts.

[0010] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas described in this utility model, a cylinder is installed on one side of the water storage tank, and the piston rod of the cylinder is fixed with a fixed frame for driving the connecting frame to move.

[0011] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas described in this utility model, the top of the floating hood is fixed with a connecting block, the inner wall of the sealed tank is fixed with a limiting block, and the inner wall of the limiting block is slidably connected to the outer side of the connecting block.

[0012] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas according to the present invention, one end of the connecting hose is connected to a recovery pipe, and one end of the recovery pipe is connected to the top of the collection tank.

[0013] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas according to this utility model, wherein: a cylinder is installed on the top of the base plate, a second water pump is connected to the outside of the sealed tank through a pipe, and the outlet end of the second water pump is connected to the inner wall of the cylinder through a pipe, a mounting frame is fixed to the inner wall of the cylinder, multiple sets of clamping rods are fixed to the top of the mounting frame, a frame is clamped to the outside of the clamping rods, and a filter screen for filtering wastewater is fixed to the inner wall of the frame.

[0014] As a preferred embodiment of the organic wastewater treatment device capable of recovering biogas described in this utility model, the top of the cylinder is provided with a cylinder cover, the top of the cylinder cover is provided with a stirring element, and the top of the frame is fixed to the bottom of the cylinder cover. The inner wall of the cylinder is provided with a liquid inlet and a liquid outlet respectively.

[0015] The beneficial effects of this utility model are as follows: the push block clears the filter holes inside the grid, preventing grid blockage and ensuring filtration effect; pulling the pull rope causes the collection box to slide outside the limit rod, causing the scraper to scrape and clean the surface of the grid, scraping the suspended matter or impurities on the grid into the collection box; the collection box can be removed from outside the limit rod for disassembly and cleaning; the floating cover floats up and down in the sealed tank according to the amount of biogas produced, collecting biogas; the sealing gasket ensures the sealing between the floating cover and the inner wall of the sealed tank, preventing biogas leakage; and the collected biogas is recovered through the connecting hose. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a structural diagram of an organic wastewater treatment device capable of recovering biogas.

[0018] Figure 2 A schematic diagram of the water storage tank in an organic wastewater treatment device that can recover biogas.

[0019] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0020] Figure 4 This is a schematic diagram of the sealed tank in an organic wastewater treatment device that can recover biogas.

[0021] Figure 5 This is a schematic diagram of the cylinder structure in an organic wastewater treatment device that can recover biogas.

[0022] Numbered components in the diagram: 1. Base plate; 2. Water storage tank; 3. Guide frame; 4. Grille; 5. Cleaning assembly; 51. Guide rod; 52. Connecting frame; 53. Push block; 6. First water pump; 7. Sealed tank; 8. Recovery assembly; 81. Floating cover; 82. Sealing gasket; 83. Connecting hose; 9. Collection tank; 10. Limiting rod; 11. Collection box; 12. Scraper; 13. Cylinder; 14. Fixing frame; 15. Connecting block; 16. Limiting block; 17. Recovery pipe; 18. Cylinder body; 19. Second water pump; 20. Mounting frame; 21. Clamping rod; 22. Frame body; 23. Filter screen; 24. Cylinder cover; 25. Agitator; 26. Liquid inlet; 27. Liquid outlet. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1:

[0027] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides an organic wastewater treatment device capable of recovering biogas, including a base plate 1, a water storage tank 2 installed on the top of the base plate 1, a guide frame 3 fixed on the inner wall of the water storage tank 2, a grid 4 for filtering suspended solids in wastewater slidably connected to the inner wall of the guide frame 3, a cleaning component 5 for unblocking the grid 4 inside the water storage tank 2, a first water pump 6 connected to one side of the water storage tank 2 through a pipe, a sealed tank 7 connected to the outlet of the first water pump 6 through a pipe, a biogas recovery component 8 for recovering biogas inside the sealed tank 7, and a collection tank 9 installed on the top of the base plate 1.

[0028] The screen 4 achieves preliminary filtration of suspended solids in the wastewater, preventing large particles from entering subsequent treatment stages and protecting downstream equipment. The cleaning component 5 cleans and unblocks the screen 4 to prevent clogging and ensure filtration efficiency. The first water pump 6 pumps the pre-filtered wastewater into the sealed tank 7, which serves as the main site for biogas recovery. Anaerobic digestion occurs inside the tank, producing biogas, which is then collected by the recovery component 8.

[0029] The cleaning component 5 includes a guide rod 51 fixed to the inner wall of the water storage tank 2. A connecting frame 52 is slidably connected to the outside of the guide rod 51. A plurality of push blocks 53 for unblocking the grid 4 are fixed on one side of the connecting frame 52.

[0030] The connecting bracket 52 slides on the outside of the guide rod 51, which drives the push block 53 to move, so that the push block 53 can clear the filter holes inside the grid 4, prevent the grid 4 from being blocked, and ensure the filtration effect.

[0031] The recycling assembly 8 includes a floating cover 81 disposed inside the sealed container 7, a sealing gasket 82 disposed on the outside of the floating cover 81, and a connecting hose 83 connected to the inner wall of the floating cover 81.

[0032] The floating cover 81 floats up and down inside the sealed tank 7 according to the amount of biogas produced, collecting biogas. The sealing gasket 82 ensures the seal between the floating cover 81 and the inner wall of the sealed tank 7 to prevent biogas leakage. The collected biogas is recovered through the connecting hose 83.

[0033] Example 2:

[0034] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, a limit rod 10 is fixed to the inner wall of the water storage tank 2, and a collection box 11 is slidably connected to the outer side of the limit rod 10. A scraper 12 for cleaning the grid 4 is fixed to one side of the collection box 11 by bolts.

[0036] A pull rope is connected to the top of the collection box 11. Pulling the pull rope causes the collection box 11 to slide outside the limit rod 10, which causes the scraper 12 to scrape and clean the surface of the grid 4, and scrape the suspended matter or impurities on the grid 4 into the collection box 11.

[0037] Specifically, a cylinder 13 is installed on one side of the water storage tank 2, and the piston rod of the cylinder 13 is fixed with a fixed frame 14 for moving the connecting frame 52.

[0038] It should be noted that cylinder 13 is composed of an air compressor, an air tank, a filter pressure reducing valve, a directional control valve, and a flow control valve. During use, the air compressor compresses ambient air to a set pressure and stores it in the air tank. The filter pressure reducing valve further purifies the air and stabilizes the pressure, then delivers it to the control valve through an air pipe. The directional control valve switches the airflow channel according to an electrical signal, determining the extension and retraction direction of cylinder 13. The flow control valve adjusts the airflow speed, controlling the movement speed of cylinder 13. Compressed air enters the rodless chamber or rodless chamber of cylinder 13, pushing the piston to move. The piston drives the piston rod to output linear reciprocating motion. The bottom of the fixed frame 14 is fixed to the top of the connecting frame 52. The fixed frame 14 is moved by the cylinder 13, causing the connecting frame 52 to move, so that the push block 53 clears the filter holes inside the grille 4, preventing the grille 4 from becoming clogged and ensuring the filtration effect.

[0039] Specifically, a connecting block 15 is fixed to the top of the floating cover 81, and a limiting block 16 is fixed to the inner wall of the sealed tank 7, with the inner wall of the limiting block 16 slidably connected to the outer side of the connecting block 15.

[0040] By sliding the connecting block 15 on the inner wall of the limiting block 16, the movement range of the floating cover 81 is limited, preventing it from detaching from the sealed container 7 or colliding with other components.

[0041] Specifically, one end of the connecting hose 83 is connected to the recovery pipe 17, and one end of the recovery pipe 17 is connected to the top of the collection tank 9.

[0042] The recovery pipe 17 connects the connecting hose 83 to the collection tank 9, and transports the biogas collected by the floating cover 81 into the collection tank 9.

[0043] Example 3:

[0044] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0045] Specifically, a cylinder 18 is installed on the top of the base plate 1, and a second water pump 19 is connected to the outside of the sealed tank 7 through a pipe. The outlet of the second water pump 19 is connected to the inner wall of the cylinder 18 through a pipe. A mounting bracket 20 is fixed to the inner wall of the cylinder 18. Multiple sets of clamping rods 21 are fixed to the top of the mounting bracket 20. A frame 22 is clamped to the outside of the clamping rods 21. A filter screen 23 for filtering sewage is fixed to the inner wall of the frame 22.

[0046] The second water pump 19 pumps the anaerobic digested wastewater in the sealed tank 7 into the cylinder 18 for further treatment. The frame 22 is clamped on the outside of the clamping rod 21 to install the filter screen 23. The filter screen 23 filters the wastewater entering the cylinder 18 to remove suspended solids or impurities.

[0047] Specifically, the top of the cylinder 18 is provided with a cylinder cover 24, the top of the cylinder cover 24 is provided with a stirring element 25, and the top of the frame 22 is fixed to the bottom of the cylinder cover 24. The inner wall of the cylinder 18 is provided with a liquid inlet 26 and a liquid outlet 27 respectively.

[0048] The cylinder cover 24 is installed on the top of the cylinder 18 by a snap fastener. Cleaning liquid is added into the cylinder 18 through the liquid inlet 26. The stirring component 25 is existing technology, including a motor fixed on the top of the cylinder cover 24 and a stirring blade fixed on the output end of the motor. The stirring blade penetrates the inner wall of the cylinder cover 24. The motor drives the stirring blade to mix the sewage, thereby improving the mixing effect of the sewage cleaning liquid and improving the sewage filtration treatment effect.

[0049] During use, wastewater is discharged into the storage tank 2. The screen 4 provides initial filtration of suspended solids, preventing large particles from entering subsequent treatment stages and protecting downstream equipment. The cylinder 13 moves the fixed frame 14, causing the connecting frame 52 to move, which in turn moves the push block 53 to clear the filter holes inside the screen 4, preventing blockage and ensuring filtration efficiency. Pulling the rope causes the collection box 11 to slide outside the limit rod 10, causing the scraper 12 to scrape and clean the surface of the screen 4, removing suspended solids or impurities into the collection box 11. The collection box 11 can then be removed from outside the limit rod 10 for disassembly and cleaning. The first water pump 6 pumps the pre-filtered wastewater into the sealed tank 7. The sealed tank 7 serves as the main site for biogas recovery, where anaerobic digestion occurs, producing biogas. The floating hood 81 floats up and down inside the sealed tank 7 according to the amount of biogas produced, collecting the biogas. The sealing gasket 82 ensures the floating hood remains in place. The sealing between the floating hood 81 and the inner wall of the sealed tank 7 prevents biogas leakage. The collected biogas is recovered through the connecting hose 83. The recovery pipe 17 connects the connecting hose 83 and the collection tank 9, and transports the biogas collected by the floating hood 81 into the collection tank 9. The second water pump 19 pumps the anaerobic digested sewage in the sealed tank 7 into the cylinder 18 for further treatment. The frame 22 is clipped to the outside of the clamping rod 21 to install the filter screen 23. The filter screen 23 filters the sewage entering the cylinder 18, removing suspended solids or impurities. The cylinder cover 24 is installed on the top of the cylinder 18 by a snap fastener. The cleaning liquid is added into the cylinder 18 through the liquid inlet 26. The stirring component 25 is existing technology, including a motor fixed to the top of the cylinder cover 24 and a stirring blade fixed to the output end of the motor. The stirring blade penetrates the inner wall of the cylinder cover 24. The motor drives the stirring blade to mix the sewage, improve the mixing effect of the sewage cleaning liquid, and improve the sewage filtration treatment effect.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An organic wastewater treatment device capable of recovering biogas, comprising a base plate (1), characterized in that: A water storage tank (2) is installed on the top of the base plate (1). A guide frame (3) is fixed on the inner wall of the water storage tank (2). A grid (4) for filtering suspended solids in sewage is slidably connected to the inner wall of the guide frame (3). A cleaning component (5) for clearing the grid (4) is installed inside the water storage tank (2). A first water pump (6) is connected to one side of the water storage tank (2) through a pipe. A sealed tank (7) is connected to the outlet of the first water pump (6) through a pipe. A biogas recovery component (8) is installed inside the sealed tank (7). A collection tank (9) is installed on the top of the base plate (1). The cleaning component (5) includes a guide rod (51) fixed to the inner wall of the water storage tank (2), a connecting frame (52) is slidably connected to the outside of the guide rod (51), and a plurality of push blocks (53) for unblocking the grid (4) are fixed on one side of the connecting frame (52). The recycling assembly (8) includes a floating cover (81) disposed inside a sealed container (7), a sealing gasket (82) disposed on the outside of the floating cover (81), and a connecting hose (83) connected to the inner wall of the floating cover (81).

2. The organic wastewater treatment device capable of recovering biogas according to claim 1, characterized by: The inner wall of the water storage tank (2) is fixed with a limit rod (10), and a collection box (11) is slidably connected to the outer side of the limit rod (10). A scraper (12) for cleaning the grid (4) is fixed to one side of the collection box (11) by bolts.

3. The organic waste water treatment device capable of recovering biogas according to claim 1, wherein: A cylinder (13) is installed on one side of the water storage tank (2), and the piston rod of the cylinder (13) is fixed with a fixed frame (14) for moving the connecting frame (52).

4. The organic waste water treatment device capable of recovering biogas according to claim 1, wherein: The top of the floating cover (81) is fixed with a connecting block (15), and the inner wall of the sealed tank (7) is fixed with a limiting block (16), and the inner wall of the limiting block (16) is slidably connected to the outer side of the connecting block (15).

5. The organic waste water treatment device capable of recovering biogas according to claim 1, wherein: One end of the connecting hose (83) is connected to a recovery pipe (17), and one end of the recovery pipe (17) is connected to the top of the collection tank (9).

6. The organic waste water treatment device capable of recovering biogas according to claim 1, wherein: A cylinder (18) is installed on the top of the base plate (1). A second water pump (19) is connected to the outside of the sealed tank (7) through a pipe. The outlet of the second water pump (19) is connected to the inner wall of the cylinder (18) through a pipe. An installation frame (20) is fixed to the inner wall of the cylinder (18). Multiple sets of clamping rods (21) are fixed to the top of the installation frame (20). A frame (22) is clamped to the outside of the clamping rods (21). A filter screen (23) for filtering sewage is fixed to the inner wall of the frame (22).

7. The organic waste water treatment apparatus capable of recovering biogas according to claim 6, characterized in that: The top of the cylinder (18) is provided with a cylinder cover (24), the top of the cylinder cover (24) is provided with a stirring element (25), and the top of the frame (22) is fixed to the bottom of the cylinder cover (24). The inner wall of the cylinder (18) is provided with a liquid inlet (26) and a liquid outlet (27).

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