Industrial wastewater denitrification treatment equipment

Abstract

The invention discloses industrial wastewater denitrification treatment equipment which comprises a container tank, and a filler assembly used for containing filler is arranged in the container tank; a material turning assembly is rotationally arranged at the top of the filling assembly, a rotating assembly used for driving the material turning assembly is arranged at the top of the container tank, rotation of the material turning assembly relative to the filling assembly is achieved through the rotating assembly, and meanwhile the material turning assembly conducts circular motion around the container tank; the material overturning assembly rotates relative to the material filling assembly to realize overturning of the filler, and the material filling assembly is driven to move through circular motion of the material overturning assembly; an aeration assembly is arranged in the container tank and located below the filler assembly, a cleaning assembly is arranged at the upper end in the container tank, rotation of the cleaning assembly and the aeration assembly is achieved through a rotating assembly, and cleaning of the water surface is achieved through rotation of the cleaning assembly; the material turning assembly ensures that water flow and oxygen are uniformly distributed in the system, and meanwhile, insufficient treatment or dead zone formation in some areas is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to industrial wastewater denitrification treatment equipment. Background Art

[0002] Various toxic substances are usually mixed in the flue gas produced during industrial production, including a large amount of nitrogen. The existing flue gas is mostly denitrified by wet method, which forms a large amount of industrial wastewater containing nitrogen compounds. Nitrogen pollutants are one of the key factors causing eutrophication of water bodies. Reducing nitrogen pollutants in wastewater is of great significance to protecting the environment.

[0003] The commonly used biological denitrification technology is nitrification-denitrification. The nitrification-denitrification method removes nitrogen from sewage through two stages of biological action. In the nitrification stage, ammonia nitrogen is oxidized into nitrate; then in the denitrification stage, nitrate is reduced to nitrogen gas and discharged into the atmosphere.

[0004] Traditional filler systems, due to the long-term static filler, are prone to excessive growth of microorganisms on the filler surface, resulting in biofilm agglomeration, blocking the water flow channel, causing uneven water flow, and affecting the contact efficiency between sewage and microorganisms. Uneven water flow will lead to the formation of insufficiently treated "dead zones", and nitrification and denitrification reactions cannot be fully carried out, and the overall denitrification efficiency is greatly reduced.

[0005] For this reason, we propose an industrial wastewater denitrification treatment equipment. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides an industrial wastewater denitrification treatment equipment. The turning component prevents the filler from agglomerating, maintains the gaps between the fillers, and ensures that the water flow and oxygen are evenly distributed in the system. At the same time, the turning promotes full contact between the filler and the sewage. The turning component not only turns the filler, but also moves it in the tank body, ensuring that the entire filler layer can fully contact the sewage at different positions, avoiding insufficient treatment in certain areas or the formation of dead zones.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An industrial wastewater denitrification treatment device comprises a container tank, wherein a filler assembly for containing fillers is arranged inside the container tank;

[0009] The top of the filling assembly is rotatably provided with a material turning assembly, and the top of the container tank is provided with a rotating assembly for driving the material turning assembly, and the rotation of the material turning assembly relative to the filling assembly is realized by the rotating assembly, and the material turning assembly performs a circular motion around the container tank;

[0010] The filling is turned over by the rotation of the turning assembly relative to the filling assembly, and the filling assembly is driven to move by the circular motion of the turning assembly;

[0011] An aeration assembly is arranged inside the container tank and below the filler assembly, and a cleaning assembly is arranged at the upper end of the container tank. The cleaning assembly and the aeration assembly are rotated by the rotating assembly, and the water surface is cleaned by the rotation of the cleaning assembly.

[0012] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the packing assembly includes a mesh cylinder, a center column is rotatably provided at the center of the inner bottom of the container tank, a supporting ring is rotatably provided on the outer wall of the center column, the inner wall of the container tank is connected to a fixing ring flush with the supporting ring, the outer circumferential surface of the mesh cylinder is connected to a positioning ring, the mesh cylinder is located between the inner circumferential surface of the fixing ring and the outer circumferential surface of the supporting ring, and the two ends of the positioning ring are respectively mounted on the top surfaces of the supporting ring and the fixing ring.

[0013] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the material turning assembly includes a ring sleeve and a lever, the ring sleeve is coaxially rotatably arranged on the top of the net cylinder, the inner wall of the ring sleeve is radially connected to the support frame, the lever is designed with multiple groups and distributed in an array at the bottom of the support frame, and the lower end of the lever is located inside the net cylinder.

[0014] As a preferred solution of the industrial wastewater denitrification treatment equipment described in the present invention, the bottom of the support frame and the center of the ring sleeve are connected to the positioning rod, the inner bottom center of the net cylinder is connected to the limiting cylinder, and the positioning rod is rotatably installed inside the limiting cylinder.

[0015] As a preferred solution of the industrial wastewater denitrification treatment equipment described in the present invention, the upper port of the ring sleeve is covered with a mesh plate.

[0016] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the rotating component includes a gear, an outer gear ring, an inner gear ring and a motor, the outer gear ring is connected and fixed to the outer circumferential surface of the ring sleeve, the inner gear ring is coaxially connected to the inner wall of the container tank and meshes with the outer gear ring, the gear is coaxially connected to the outer wall of the center column and meshes with the outer gear ring, and the motor is transmission-connected to the top end of the center column.

[0017] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the aeration component includes an aeration plate, the interior of the central column is hollow, the aeration plate is connected to the outer wall of the lower end of the central column, and the aeration plate is communicated with the interior of the central column, the top of the container tank is connected to an air cylinder, the upper end of the central column penetrates the air cylinder, and the central column and the air cylinder are sealed and rotatably connected, the outer wall of the central column located inside the air cylinder is connected to open an air hole, the outer wall of the air cylinder is connected to be provided with a connecting pipe, and the motor is installed on the top of the air cylinder and is transmission-connected to the top end of the central column.

[0018] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the cleaning component includes a connecting ring and a scraper, the scraper is designed with multiple groups and is distributed around the outer circumferential surface of the connecting ring, the connecting ring is movably sleeved on the upper outer surface of the center column, and the connecting ring and the center column are engaged in the circumferential direction, the ends of the scrapers are commonly connected to a circular ring tray, the scraper has an arc shape, and the upper inner wall of the circular ring tray is provided with a square opening corresponding to the end of the scraper.

[0019] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the upper outer surface of the center column is axially connected with a limiting rib, the limiting ribs are designed with multiple groups and are axially symmetrically distributed, the inner circumferential surface of the connecting ring is provided with a guide groove corresponding to the axial direction of the limiting rib, the limiting rib and the guide groove are slidably connected up and down, and the limiting rib and the guide groove are engaged with each other along the circumferential direction.

[0020] As a preferred embodiment of the industrial wastewater denitrification treatment equipment described in the present invention, the upper and lower side walls of the container tank are both connected with water pipes.

[0021] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0022] By designing the material turning component and the filler component that cooperate with each other, the rotation of the material turning component can realize the regular turning of the filler, prevent the filler from being stationary for a long time, prevent the filler from agglomerating, maintain the gaps between the fillers, and ensure the uniform distribution of water flow and oxygen. At the same time, the turning promotes the full contact between the filler and the sewage, increases the mass transfer efficiency, prevents the blockage between the fillers and the local excessive accumulation of microorganisms, and maintains the treatment efficiency and equipment stability;

[0023] The designed rotating assembly drives the turning assembly to perform circular motion, so that the filler not only turns but also moves in the tank, ensuring that the entire filler layer can fully contact the sewage at different positions, avoiding insufficient treatment in certain areas or the formation of dead zones;

[0024] Through the designed aeration components, oxygen is provided to the sewage to meet the aerobic conditions of nitrifying bacteria, promote the activity of aerobic microorganisms, and increase the nitrification reaction rate;

[0025] The specially designed cleaning components can be used to clean the scum and impurities on the water surface by rotation, thus preventing the scum and suspended matter from affecting the equipment operation and water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of an industrial wastewater denitrification treatment equipment.

[0027] Figure 2 This is a schematic diagram of the central column of an industrial wastewater denitrification treatment equipment.

[0028] Figure 3 This is a schematic diagram of a scraper for industrial wastewater denitrification treatment equipment.

[0029] Figure 4 This is a schematic diagram of a mesh cylinder for industrial wastewater denitrification treatment equipment.

[0030] Figure 5 This is a schematic diagram of the outer gear ring of an industrial wastewater denitrification treatment equipment.

[0031] Figure 6 This is a schematic diagram of a support frame for industrial wastewater denitrification treatment equipment.

[0032] Among them: 1. container tank; 2. scraper; 3. water pipe; 4. air cylinder; 5. motor; 6. connecting pipe; 7. center column; 8. air hole; 9. ring tray; 10. mesh cylinder; 11. fixing ring; 12. outer gear ring; 13. inner gear ring; 14. aeration plate; 15. connecting ring; 16. square mouth; 17. limiting rib; 18. guide groove; 19. positioning ring; 20. gear; 21. mesh plate; 22. supporting ring; 23. support frame; 24. lever; 25. limiting cylinder; 26. ring sleeve; 27. positioning rod. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example

[0037] Please refer to Figures 1 to 6 As shown, the present invention provides an industrial wastewater denitrification treatment device, including a container tank 1, wherein a filler assembly for containing fillers is arranged inside the container tank 1; the filler provides a surface for microorganisms to attach to, forms a biofilm, and increases the concentration of microorganisms. Due to the presence of the filler, the microorganisms can efficiently perform ammoniation, nitrification and denitrification reactions, thereby accelerating the nitrogen removal process and improving the nitrogen removal efficiency;

[0038] The packing assembly includes a net cylinder 10, a center column 7 is rotatably provided at the center of the inner bottom of the container tank 1, a supporting ring 22 is rotatably provided on the outer wall of the center column 7, a fixing ring 11 flush with the supporting ring 22 is connected to the inner wall of the container tank 1, a positioning ring 19 is connected to the outer circumferential surface of the net cylinder 10, the net cylinder 10 is located between the inner circumferential surface of the fixing ring 11 and the outer circumferential surface of the supporting ring 22, and two ends of the positioning ring 19 are respectively mounted on the top surfaces of the supporting ring 22 and the fixing ring 11;

[0039] The top of the filling assembly is rotatably provided with a turning assembly, and the top of the container tank 1 is provided with a rotating assembly for driving the turning assembly, and the turning assembly is rotated relative to the filling assembly by the rotating assembly, and the turning assembly performs a circular motion around the container tank 1;

[0040] The material turning assembly includes a ring sleeve 26 and a lever 24. The ring sleeve 26 is coaxially rotatably arranged on the top of the net cylinder 10. The inner wall of the ring sleeve 26 is radially connected to the support frame 23. The lever 24 is designed to have multiple groups and is distributed in an array at the bottom of the support frame 23. The lower end of the lever 24 is located inside the net cylinder 10. The bottom of the support frame 23 and the center of the ring sleeve 26 are connected to the positioning rod 27. The inner bottom center of the net cylinder 10 is connected to the limiting cylinder 25. The positioning rod 27 is rotatably installed inside the limiting cylinder 25. The upper end of the ring sleeve 26 is covered with a mesh plate 21.

[0041] The rotating assembly includes a gear 20, an outer gear ring 12, an inner gear ring 13 and a motor 5. The outer gear ring 12 is connected and fixed to the outer circumferential surface of the ring sleeve 26. The inner gear ring 13 is coaxially connected to the inner wall of the container tank 1 and meshes with the outer gear ring 12. The gear 20 is coaxially connected to the outer wall of the center column 7 and meshes with the outer gear ring 12. The motor 5 is drivingly connected to the top end of the center column 7. The upper and lower side walls of the container tank 1 are both connected and provided with a water pipe 3.

[0042] The filling is turned over by the rotation of the turning assembly relative to the filling assembly, and the filling assembly is driven to move by the circular motion of the turning assembly; the rotation of the turning assembly enables the filling to be turned over regularly to prevent the filling from being stationary for a long time. Turning over can prevent the filling from agglomerating, maintain the gaps between the fillings, and ensure the uniform distribution of water flow and oxygen. At the same time, turning over promotes full contact between the filling and the sewage, increasing the mass transfer efficiency; the rotating assembly drives the turning assembly to perform circular motion, so that the filling is not only turned over, but also moves in the tank, ensuring that the entire filling layer can fully contact the sewage at different positions, avoiding insufficient treatment in certain areas or the formation of dead zones;

[0043] An aeration assembly is provided inside the container tank 1 and below the filler assembly. A cleaning assembly is provided at the upper end of the container tank 1. The cleaning assembly and the aeration assembly are rotated by the rotating assembly, and the water surface is cleaned by the rotation of the cleaning assembly.

[0044] The aeration assembly includes an aeration plate 14, the interior of the center column 7 is hollow, the aeration plate 14 is connected to the outer side wall of the lower end of the center column 7, and the aeration plate 14 is connected to the interior of the center column 7, the top of the container tank 1 is connected with an air cylinder 4, the upper end of the center column 7 penetrates the air cylinder 4, and the center column 7 and the air cylinder 4 are sealed and rotatably connected, the outer side wall of the center column 7 located inside the air cylinder 4 is connected and provided with an air hole 8, the outer side wall of the air cylinder 4 is connected and provided with a connecting pipe 6, and the motor 5 is installed on the top of the air cylinder 4 and is drivingly connected to the top end of the center column 7;

[0045] The aeration component is located below the packing component, providing oxygen to the sewage to meet the aerobic conditions of nitrifying bacteria. Adequate oxygen supply can promote the activity of aerobic microorganisms, increase the nitrification reaction rate, and also provide sufficient intermediates for the denitrification reaction;

[0046] The cleaning assembly includes a connecting ring 15 and a scraper 2. The scraper 2 is designed with multiple groups and is distributed around the outer circumferential surface of the connecting ring 15. The connecting ring 15 is movably sleeved on the outer surface of the upper end of the central column 7, and the connecting ring 15 and the central column 7 are engaged along the circumferential direction. The ends of the scrapers 2 are commonly connected to a circular tray 9. The outer shape of the scrapers 2 is an arc shape. The inner side wall of the upper end of the circular tray 9 is connected to the end of the scrapers 2 and is provided with a square opening 16.

[0047] The cleaning component cleans the scum and impurities on the water surface by rotating. Water surface cleaning can prevent scum and suspended matter from affecting equipment operation and water quality, and prevent blockage or pollution.

[0048] The outer surface of the upper end of the center column 7 is axially connected with a limiting rib 17. The limiting rib 17 is designed with multiple groups and is symmetrically distributed along the axis. The inner circumferential surface of the connecting ring 15 is axially provided with a guide groove 18 corresponding to the limiting rib 17. The limiting rib 17 and the guide groove 18 are connected to each other in an up and down sliding manner, and the limiting rib 17 and the guide groove 18 are mutually engaged in the circumferential direction.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An industrial wastewater denitrification treatment device, comprising a container tank (1), characterized in that: A filling component for containing a filling is arranged inside the container tank (1); The top of the filling assembly is rotatably provided with a material turning assembly, and the top of the container tank (1) is provided with a rotating assembly for driving the material turning assembly, and the rotation of the material turning assembly relative to the filling assembly is achieved by the rotating assembly, and the material turning assembly performs a circular motion around the container tank (1); The filling is turned over by the rotation of the turning assembly relative to the filling assembly, and the filling assembly is driven to move by the circular motion of the turning assembly; An aeration component is arranged inside the container tank (1) and below the filler component, and a cleaning component is arranged at the upper end of the container tank (1). The cleaning component and the aeration component are rotated by the rotating component, and the water surface is cleaned by the rotation of the cleaning component.

2. The industrial wastewater denitrification treatment equipment according to claim 1, characterized in that: The packing assembly comprises a mesh cylinder (10), a center column (7) is rotatably provided at the center of the inner bottom of the container tank (1), a supporting ring (22) is rotatably provided on the outer wall of the center column (7), the inner wall of the container tank (1) is connected to a fixing ring (11) flush with the supporting ring (22), the outer circumferential surface of the mesh cylinder (10) is connected to a positioning ring (19), the mesh cylinder (10) is located between the inner circumferential surface of the fixing ring (11) and the outer circumferential surface of the supporting ring (22), and the two ends of the positioning ring (19) are respectively mounted on the top surfaces of the supporting ring (22) and the fixing ring (11).

3. The industrial wastewater denitrification treatment equipment according to claim 2, characterized in that: The material turning assembly comprises a ring sleeve (26) and a lever (24); the ring sleeve (26) is coaxially rotatably arranged at the top of the net cylinder (10); the inner wall of the ring sleeve (26) is radially connected to the support frame (23); the lever (24) is designed to have multiple groups and is distributed in an array at the bottom of the support frame (23); and the lower end of the lever (24) is located inside the net cylinder (10).

4. The industrial wastewater denitrification treatment equipment according to claim 3 is characterized in that: The bottom of the support frame (23) and the center of the ring sleeve (26) are connected to the positioning rod (27), the center of the inner bottom of the net cylinder (10) is connected to the limiting cylinder (25), and the positioning rod (27) is rotatably installed inside the limiting cylinder (25).

5. The industrial wastewater denitrification treatment equipment according to claim 3 is characterized in that: The upper end of the ring sleeve (26) is covered with a mesh plate (21).

6. The industrial wastewater denitrification treatment equipment according to claim 3, characterized in that: The rotating assembly comprises a gear (20), an outer gear ring (12), an inner gear ring (13) and a motor (5); the outer gear ring (12) is connected and fixed to the outer circumferential surface of the ring sleeve (26); the inner gear ring (13) is coaxially connected to the inner wall of the container tank (1) and meshes with the outer gear ring (12); the gear (20) is coaxially connected to the outer wall of the center column (7) and meshes with the outer gear ring (12); and the motor (5) is drivingly connected to the top end of the center column (7).

7. The industrial wastewater denitrification treatment equipment according to claim 2, characterized in that: The aeration assembly comprises an aeration plate (14), the interior of the central column (7) is hollow, the aeration plate (14) is connected to the outer side wall of the lower end of the central column (7), and the aeration plate (14) is communicated with the interior of the central column (7); the top of the container tank (1) is connected to an air cylinder (4), the upper end of the central column (7) penetrates the air cylinder (4), and the central column (7) and the air cylinder (4) are sealed and rotatably connected; the outer side wall of the central column (7) located inside the air cylinder (4) is connected to an air hole (8), and the outer side wall of the air cylinder (4) is connected to a connecting pipe (6); the motor (5) is installed on the top of the air cylinder (4) and is drivingly connected to the top end of the central column (7).

8. The industrial wastewater denitrification treatment equipment according to claim 7, characterized in that: The cleaning assembly comprises a connecting ring (15) and a scraper (2). The scraper (2) is designed to have multiple groups and is distributed around the outer circumferential surface of the connecting ring (15). The connecting ring (15) is movably sleeved on the outer surface of the upper end of the central column (7), and the connecting ring (15) and the central column (7) are engaged in the circumferential direction. The ends of the scrapers (2) are commonly connected to a circular ring tray (9). The outer shape of the scrapers (2) is an arc shape, and a square opening (16) is opened on the inner side wall of the upper end of the circular ring tray (9) corresponding to the end of the scraper (2).

9. The industrial wastewater denitrification treatment equipment according to claim 8, characterized in that: The upper outer surface of the center column (7) is axially connected to a limiting rib (17), and the limiting rib (17) is designed to have multiple groups and is symmetrically distributed along the axis. The inner circumferential surface of the connecting ring (15) is axially provided with a guide groove (18) corresponding to the limiting rib (17). The limiting rib (17) and the guide groove (18) are slidably connected up and down, and the limiting rib (17) and the guide groove (18) are mutually engaged in the circumferential direction.

10. The industrial wastewater denitrification treatment equipment according to claim 1, characterized in that: The upper and lower side walls of the container tank (1) are both connected and provided with water pipes (3).

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