Nitration tank for domestic garbage leachate treatment

Abstract

The utility model discloses a domestic garbage leachate treatment nitration tank which comprises a nitration tank body, a feeding seal is detachably arranged on the nitration tank body, a mixing assembly extending into the nitration tank body is arranged on the nitration tank body, a nitration water inlet pipeline and a nitration water outlet pipeline are respectively arranged on the nitration tank body, and the nitration water inlet pipeline is communicated with the nitration water outlet pipeline. One end of the nitrification water inlet pipeline is connected with a pipeline connecting sleeve, the pipeline connecting sleeve is communicated with a denitrification reactor through a connecting pipe, the other end of the nitrification water outlet pipeline is connected with a discharging pump, and a lower supporting assembly is arranged at the bottom of the nitrification tank body; the nitrification tank disclosed by the utility model has the beneficial effects that the structure is simple, the mixing effect of sewage and activated sludge can be effectively improved, and meanwhile, the problem of blockage caused by the fact that the sewage enters an aeration disc is prevented, so that the aeration effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely, relate to a kind of domestic waste leachate treatment nitrification tank. BACKGROUND

[0002] Garbage incineration power generation is a new municipal solid waste disposal method in recent years. Before incineration, fresh garbage must be stored in a garbage pit for 3-7 days for fermentation and maturation to achieve the purpose of water leaching and heat value improvement, which can ensure the normal operation of the subsequent incinerator. The leachate during storage is the garbage leachate of the incineration plant. Due to the imperfect garbage classification system in China, kitchen garbage, industrial garbage, construction garbage and other industrial garbage are mixed in the domestic garbage, resulting in large amount of garbage leachate, complex water quality composition, high pollutant concentration and great environmental harm.

[0003] For high-organic and high-ammonia-nitrogen wastewater such as domestic waste leachate, activated sludge method is the most widely used aerobic biological treatment method for wastewater, which mainly consists of aeration tank, secondary sedimentation tank, aeration system and sludge return system. In the nitrification tank, wastewater and activated sludge are mixed, stirred and aerated to decompose organic pollutants in the wastewater. However, the current nitrification tank has the problem of poor aeration effect, and the wastewater is easy to enter the inside of the aeration disc, which can easily cause blockage.

[0004] Currently, there is no effective solution to the problems in the related art. SUMMARY

[0005] To overcome the deficiencies in the prior art, the utility model aims to provide a domestic waste leachate treatment nitrification tank.

[0006] To achieve the above-mentioned purpose, the utility model is realized by the following technical scheme. A domestic waste leachate treatment nitrification tank comprises a nitrification tank body, a feed inlet sealing cover detachably arranged on the nitrification tank body, a mixing assembly extending into the nitrification tank body arranged on the nitrification tank body, a nitrification water inlet pipe and a nitrification water outlet pipe respectively installed on the nitrification tank body, a pipe connecting sleeve connected to one end of the nitrification water inlet pipe, a denitrification reactor connected to the pipe connecting sleeve through a connecting pipe, a discharge pump connected to the other end of the nitrification water outlet pipe, a lower support assembly arranged at the bottom of the nitrification tank body, an aeration assembly extending to the bottom of the nitrification tank body arranged in the lower support assembly, and a foam communication pipe connected to the denitrification reactor arranged on the nitrification tank body.

[0007] Preferably, the mixing assembly includes a motor fixed at the top center of the nitration tank body, the output end of the motor is connected to a drive shaft located in the nitration tank body, a mounting sleeve is fixedly provided on the drive shaft, four groups of stirring rods are installed on the mounting sleeve, and blades are integrally connected to the stirring rods.

[0008] Preferably, the lower support assembly includes a lower cavity support seat, an aeration pump is installed at the bottom center of the lower cavity support seat, and the output end of the aeration pump is connected to an output pipe communicating with the aeration assembly.

[0009] Preferably, a limiting ring is fixedly installed on the lower cavity support seat, and the nitrification tank body is detachably installed on the lower cavity support seat through the limiting ring. Four groups of air inlet openings are opened on the lower cavity support seat, and dust filters are installed on the air inlet openings.

[0010] Preferably, the aeration assembly includes a fixed mounting ring fixed in the nitrification tank body, a main aeration pipe is provided at the center of the fixed mounting ring, the bottom end of the main aeration pipe is connected to the output pipe through a fixed sleeve, and four groups of auxiliary aeration pipes are connected between the main aeration pipe and the fixed mounting ring.

[0011] Preferably, the main aeration pipe is connected to the auxiliary aeration pipe, and the auxiliary aeration pipe is connected to three groups of annular aeration pipes, and a plurality of anti-blocking aeration nozzle components are detachably installed on the annular aeration pipes.

[0012] Preferably, the anti-blocking aeration nozzle component includes a conical aeration shell, the bottom of which is detachably connected to the annular aeration pipe via an external threaded joint, an inverted conical inner shell is fixedly installed in the conical aeration shell, a grid is provided in the inverted conical inner shell, and an arc-shaped sealing sheet is connected between the inverted conical inner shell and the conical aeration shell.

[0013] The utility model provides a nitrification tank for treating domestic garbage leachate, which has the following beneficial effects:

[0014] The feeding seal is provided on the nitrification tank body to facilitate feeding, and the sewage and activated sludge are mixed and stirred by the action of the mixing component to improve the mixing effect. The nitrification water inlet pipe is connected to the denitrification reactor, and the nitrification water outlet pipe is provided to cooperate with the discharge pump to facilitate the extraction of materials in the nitrification tank body. The nitrification tank body is supported by the provided lower support component, and the provided aeration component can aerate the sewage in the nitrification tank body. At the same time, it can effectively prevent the sewage from clogging the aeration pipe. The utility model has a simple structure, can effectively improve the mixing effect of sewage and activated sludge, and can prevent the sewage from entering the aeration disk and causing clogging problems, thereby improving the aeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a front view of a domestic waste leachate treatment nitrification tank according to an embodiment of the present utility model;

[0017] Figure 2 This is a structural schematic diagram of a mixing assembly in a nitrification tank for treating domestic waste leachate according to an embodiment of the present utility model;

[0018] Figure 3 This is a structural schematic diagram of a lower support assembly in a nitrification tank for treating domestic waste leachate according to an embodiment of the present utility model;

[0019] Figure 4 This is a structural schematic diagram of an aeration assembly in a nitrification tank for treating domestic waste leachate according to an embodiment of the present utility model;

[0020] Figure 5 The present invention is a schematic structural diagram of an anti-blocking aeration nozzle component in a nitrification tank for treating leachate of domestic waste according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Nitrification tank body; 2. Mixing assembly; 3. Nitrification water inlet pipe; 4. Nitrification water outlet pipe; 5. Pipe connecting sleeve; 6. Discharge pump; 7. Lower support assembly; 8. Foam connecting pipe; 9. Agitator rod; 10. Drive shaft; 11. Mounting sleeve; 12. Blades; 13. Lower cavity support seat; 14. Aeration pump; 15. Output pipe; 16. Limiting ring; 17. Air inlet opening; 18. Dust filter; 19. Fixed mounting ring; 20. Main aeration pipe; 21. Fixed sleeve; 22. Auxiliary aeration pipe; 23. Annular aeration pipe; 24. Anti-blocking aeration nozzle component; 25. Conical aeration shell; 26. External threaded joint; 27. Inverted conical inner shell; 28. Grid; 29. ​​Arc sealing piece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The utility model provides a nitrification tank for treating leachate of domestic garbage, comprising a nitrification tank body 1, wherein the nitrification tank body 1 is detachably provided with a feed seal, the nitrification tank body 1 is provided with a mixing assembly 2 extending therein, a nitrification water inlet pipe 3 and a nitrification water outlet pipe 4 are respectively installed on the nitrification tank body 1, one end of the nitrification water inlet pipe 3 is connected with a pipe connecting sleeve 5, the pipe connecting sleeve 5 is connected with a denitrification reactor through a connecting pipe, and the other end of the nitrification water outlet pipe 4 is connected with a discharge pump 6, the feed seal provided on the nitrification tank body 1 is convenient for feeding, and then the sewage and activated sewage are mixed into the nitrification water outlet pipe 4 through the action of the mixing assembly 2. The mud is mixed and stirred to improve the mixing effect. The nitrification water inlet pipe 3 is connected to the denitrification reactor. The nitrification water outlet pipe 4 is provided with a discharge pump 6 to facilitate the extraction of the material in the nitrification tank body 1. The bottom of the nitrification tank body 1 is provided with a lower support assembly 7. The lower support assembly 7 is provided with an aeration assembly extending to the bottom of the nitrification tank body 1. The nitrification tank body 1 is provided with a foam communication pipe 8 connected to the denitrification reactor. The lower support assembly 7 is provided to support the nitrification tank body 1. The aeration assembly can aerate the sewage in the nitrification tank body 1. At the same time, it can effectively prevent the sewage from clogging the aeration pipe.

[0025] In one embodiment, please refer to the appendix of the specification. Figure 2 As shown, the mixing assembly 2 includes a motor fixed at the top center of the nitrification tank body 1. The output end of the motor is connected to a drive shaft 10 located in the nitrification tank body 1. A mounting sleeve 11 is fixedly provided on the drive shaft 10. Four sets of stirring rods 9 are mounted on the mounting sleeve 11. The stirring rods 9 are integrally connected to blades 12. The motor drives the drive shaft 10 to rotate, thereby rotating the stirring rods 9 and the blades 12 on the stirring rods 9, thereby improving the mixing effect of the sewage and activated sludge.

[0026] In one embodiment, please refer to the appendix of the specification. Figure 3As shown, the lower support assembly 7 includes a lower cavity support seat 13, an aeration pump 14 is installed at the bottom center of the lower cavity support seat 13, the output end of the aeration pump 14 is connected to an output pipe 15 connected to the aeration assembly, a limit ring 16 is fixedly installed on the lower cavity support seat 13, and the nitrification tank body 1 is detachably mounted on the lower cavity support seat 13 through the limit ring 16. Four groups of air inlet openings 17 are opened on the lower cavity support seat 13, and dustproof filters 18 are installed on each of the air inlet openings 17. The aeration pump 14 is provided in conjunction with the output pipe 15 to facilitate the output of the aeration assembly. The lower cavity support seat 13 supports the nitrification tank body 1, and the air inlet openings 17 are provided for air intake, which has a dustproof effect when combined with the dustproof filter 18.

[0027] In one embodiment, please refer to the appendix of the specification. Figure 4 As shown, the aeration assembly includes a fixed mounting ring 19 fixed within the nitrification tank body 1. A main aeration pipe 20 is disposed at the center of the fixed mounting ring 19. The bottom end of the main aeration pipe 20 is connected to the output pipe 15 via a fixed sleeve 21. Four sets of auxiliary aeration pipes 22 are connected between the main aeration pipe 20 and the fixed mounting ring 19. The main aeration pipes 20 are connected to the auxiliary aeration pipes 22. Three sets of annular aeration pipes 23 are connected to the auxiliary aeration pipes 22. Several anti-blocking aeration nozzle components 24 are detachably mounted on the annular aeration pipes 23. The auxiliary aeration pipes 22 and the main aeration pipe 20 are mounted through the fixed mounting ring 19, and then connected to the auxiliary aeration pipes 22 through the annular aeration pipes 23. Several anti-blocking aeration nozzle components 24 are installed on the annular aeration pipes 23, achieving an aeration effect while preventing sewage from clogging the pipe.

[0028] In one embodiment, please refer to the appendix of the specification. Figure 5 As shown, the anti-clogging aeration nozzle assembly 24 includes a conical aeration shell 25, the bottom of which is detachably connected to the annular aeration pipe 23 via an externally threaded joint 26. An inverted conical inner shell 27 is fixedly mounted within the conical aeration shell 25, which contains a grid 28. An arcuate sealing sheet 29 is connected between the inverted conical inner shell 27 and the conical aeration shell 25. The conical aeration shell 25 is used for aeration, and the externally threaded joint 26 facilitates its installation on the annular aeration pipe 23. The inverted conical inner shell 27 fixedly mounted within the conical aeration shell 25 significantly reduces the air outlet, and in conjunction with the grid 28, water is prevented from seeping through its surface due to tension, thereby preventing clogging of the pipe.

[0029] In actual application, the feeding is facilitated by the feeding seal provided on the nitrification tank body 1, and the sewage and activated sludge are mixed and stirred by the action of the mixing component 2 to improve the mixing effect. The nitrification water inlet pipe 3 is connected to the denitrification reactor, and the nitrification water outlet pipe 4 is provided to cooperate with the discharge pump 6 to facilitate the extraction of the material in the nitrification tank body 1. The nitrification tank body 1 is supported by the provided lower support component 7. The provided aeration component can aerate the sewage in the nitrification tank body 1. At the same time, it can effectively prevent the sewage from clogging the aeration pipe. The utility model has a simple structure, can effectively improve the mixing effect of sewage and activated sludge, and can prevent the sewage from entering the aeration disk and causing clogging problems, thereby improving the aeration effect.

[0030] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A nitrification tank for treating domestic waste leachate, characterized in that: The invention comprises a nitrification tank body (1), wherein the nitrification tank body (1) is detachably provided with a feed seal, the nitrification tank body (1) is provided with a mixing assembly (2) extending therein, the nitrification tank body (1) is respectively provided with a nitrification water inlet pipe (3) and a nitrification water outlet pipe (4), one end of the nitrification water inlet pipe (3) is connected to a pipe connecting sleeve (5), the pipe connecting sleeve (5) is connected to a denitrification reactor via a connecting pipe, the other end of the nitrification water outlet pipe (4) is connected to a discharge pump (6), and the nitrification tank body (1) is provided with a mixing assembly (2) extending therein. The bottom of the nitrification tank body (1) is provided with a lower support assembly (7), and an aeration assembly extending to the bottom of the nitrification tank body (1) is provided in the lower support assembly (7). The nitrification tank body (1) is provided with a foam communication pipe (8) connected to the denitrification reactor. The lower support assembly (7) includes a lower cavity support seat (13), and an aeration pump (14) is installed at the center of the bottom of the lower cavity support seat (13). The output end of the aeration pump (14) is connected to an output pipe (15) connected to the aeration assembly. The aeration assembly includes a foam communication pipe (8) fixed to the bottom of the nitrification tank body (1). The fixed installation ring (19) in the nitrification tank body (1) is provided with a main aeration pipe (20) at the center of the fixed installation ring (19). The bottom end of the main aeration pipe (20) is connected to the output pipe (15) through a fixed sleeve (21). Four groups of auxiliary aeration pipes (22) are connected between the main aeration pipe (20) and the fixed installation ring (19). The main aeration pipe (20) is connected to the auxiliary aeration pipe (22). The auxiliary aeration pipe (22) is connected to three groups of annular aeration pipes (23). A plurality of anti-blocking aeration nozzle components (24) are detachably mounted on the air pipe (23). The anti-blocking aeration nozzle components (24) include a conical aeration shell (25). The bottom of the conical aeration shell (25) is detachably connected to the annular aeration pipe (23) via an external threaded joint (26). An inverted conical inner shell (27) is fixedly mounted in the conical aeration shell (25). A grid (28) is provided in the inverted conical inner shell (27). An arc-shaped sealing sheet (29) is connected between the inverted conical inner shell (27) and the conical aeration shell (25).

2. A domestic waste leachate treatment nitrification tank according to claim 1, characterized in that: The mixing assembly (2) comprises a motor fixed at the top center of the nitrification tank body (1), the output end of the motor being connected to a drive shaft (10) located in the nitrification tank body (1), a mounting sleeve (11) being fixedly provided on the drive shaft (10), four sets of stirring rods (9) being mounted on the mounting sleeve (11), and blades (12) being integrally connected to the stirring rods (9).

3. A domestic waste leachate treatment nitrification tank according to claim 2, characterized in that: A limiting ring (16) is fixedly mounted on the lower cavity support seat (13), and the nitrification tank body (1) is detachably mounted on the lower cavity support seat (13) via the limiting ring (16). Four groups of air inlet openings (17) are provided on the lower cavity support seat (13), and dustproof filters (18) are installed on each of the air inlet openings (17).

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