Environment-friendly sewage sterilization and denitrification device
By introducing a uniform distribution and stirring mechanism into the wastewater sterilization and denitrification device, the problem of denitrifying agent accumulation near the dosing point was solved, achieving uniform dispersion and efficient reaction of the denitrifying agent, and improving the wastewater treatment effect.
Patent Information
- Application Number
- CN202520455609.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
In existing wastewater sterilization and denitrification devices, the denitrifying agent accumulates near the dosing point, resulting in excessively high concentrations, while the concentration is too low in areas far from the dosing point, making it impossible to achieve comprehensive and efficient removal of nitrogen from wastewater.
An environmentally friendly wastewater sterilization and denitrification device was designed, which adopts a uniform distribution mechanism and a stirring mechanism. The uniform distribution mechanism is driven to rotate by a manual drive mechanism and the moving mechanism is driven by a power mechanism to achieve uniform dispersion and mixing of the denitrifying agent, avoid the accumulation of the denitrifying agent near the dosing point, and promote the full progress of the denitrification reaction.
This method achieves uniform dispersion of the denitrifying agent in wastewater, improves the denitrification reaction efficiency, ensures the denitrifying agent moves freely throughout the wastewater system, avoids the accumulation of the denitrifying agent near the dosing point, and improves the denitrification effect.
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Figure CN223921196U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sewage treatment equipment, and specifically relates to an environmentally friendly sewage sterilization and denitrification device. Background Technology
[0002] If wastewater is discharged directly without sterilization and denitrification treatment, it will cause many serious harms to the environment, ecology and human health. At the environmental level, the large amount of nitrogen in wastewater will cause eutrophication of water bodies. Taking lakes, rivers and other water bodies as examples, excessive nitrogen will cause algae and other plankton to multiply wildly, forming algal blooms or red tides.
[0003] In existing wastewater sterilization and denitrification devices, when denitrifying agents are added to wastewater to achieve denitrification treatment, the denitrifying agents tend to accumulate in large quantities in the vicinity of the injection point, making it difficult for them to diffuse to the surrounding areas and deeper water bodies. This results in excessively high concentrations of denitrifying agents in the vicinity of the injection point, while the concentrations in areas far from the injection point are too low, making it impossible to achieve comprehensive and efficient removal of nitrogen from wastewater.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes an environmentally friendly wastewater sterilization and denitrification device to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to an environmentally friendly wastewater sterilization and denitrification device, comprising a denitrification device body. An inlet pipe, a wastewater inlet pipe, and a wastewater outlet pipe are respectively connected to the outer wall of the denitrification device body. A distribution mechanism is rotatably mounted on the top of the inner cavity of the denitrification device body, and the distribution mechanism is connected to the inlet pipe. A manual drive mechanism is engaged with the distribution mechanism and is rotatably mounted on the denitrification device body. A power mechanism is provided at one end of the denitrification device body, and a moving mechanism is mounted on the power mechanism. A reciprocating guide cylinder is fixedly mounted in the inner cavity of the denitrification device body. A closed annular groove is formed on the inner wall of the reciprocating guide cylinder. The moving mechanism slides in conjunction with the closed annular groove. A stirring mechanism is mounted on the moving mechanism. A support frame for supporting the stirring mechanism is fixedly mounted on the denitrification device body.
[0008] Furthermore, the equalization mechanism includes a rotating tube, which is rotatably mounted on the body of the denitrification device. The rotating tube is connected to the inlet tube, and an expansion cover is fixedly installed at the bottom of the rotating tube.
[0009] Further, the inner wall of the extension cover is provided with a plurality of inclined and evenly distributed plates in a circumferential array, and the outer wall of the rotating tube is fixedly provided with a gear plate.
[0010] Further, the manual rotating drive mechanism comprises a rotating shaft, which is rotatably installed on the denitrogenation device body and extends through the denitrogenation device body to the inner cavity and the outside of the denitrogenation device body respectively, and the bottom of the rotating shaft is fixedly provided with a rotating gear, which is engaged with the gear plate.
[0011] Further, the top of the rotating shaft is fixedly provided with a hand wheel, and the top of the hand wheel is fixedly provided with a hand wheel handle at an eccentric end.
[0012] Further, the power mechanism comprises a power motor, which is fixedly installed on the outer wall of the denitrogenation device body, and the output end of the power motor is fixedly provided with an output shaft, and the output shaft is fixedly provided with a sliding rod.
[0013] Further, the moving mechanism comprises a moving rod, which is installed on the sliding rod, and the circumferential surface of the moving rod is fixedly provided with a linkage rod, and one end of the linkage rod is located in the closed annular groove.
[0014] Further, the stirring mechanism comprises a connecting shaft, which is fixedly installed on the moving rod, and the circumferential surface of the connecting shaft is linearly provided with a plurality of connecting blocks.
[0015] Further, the circumferential surface of each of the plurality of connecting blocks is fixedly provided with a plurality of stirring vanes, and the outer wall of the connecting shaft, which is away from the moving rod, is fixedly provided with a sliding block in a symmetrical manner.
[0016] Further, a rotating ring is slidingly installed on the two sliding blocks, and the rotating ring is rotatably installed on the support frame.
[0017] The utility model has the following beneficial effects:
[0018] The stirring mechanism installed on the moving mechanism moves with the moving mechanism during the movement of the moving mechanism, and the stirring mechanism not only rotates and stirs the sewage and the denitrogenation agent, but also moves back and forth on the horizontal plane of the power mechanism alternately, on the one hand, the rotation and stirring of the power mechanism can make the denitrogenation agent further uniformly dispersed in the sewage, so that the denitrogenation agent fully contacts with the nitrogen element in the sewage, and the denitrogenation reaction efficiency is improved; on the other hand, the back-and-forth movement and rotation and stirring of the power mechanism increase the stirring range, which can break the movement obstacles of the denitrogenation agent in the sewage caused by suspended solids, colloids and other impurities in a large range, so that the denitrogenation agent can freely move in the whole sewage system, and the support frame fixedly installed on the denitrogenation device body supports the stirring mechanism and ensures the stability of the stirring mechanism during the working process.
[0019] The utility model discloses when the sewage enters the nitrogen removal device body, then nitrogen removal agent is poured into the nitrogen removal device body through the agent inlet pipe, when pouring the nitrogen removal agent into the agent inlet pipe, because the equal division mechanism is communicated with the agent inlet pipe, the nitrogen removal agent is poured into the equal division mechanism first after passing through the agent inlet pipe, at the same time, the operator rotates the manual driving mechanism with hand, and because the manual driving mechanism is engaged with the equal division mechanism, and the equal division mechanism is installed on the inner chamber top of the nitrogen removal device body, so the manual driving mechanism can drive the equal division mechanism to rotate, and then under the rotation of the equal division mechanism, the nitrogen removal agent on the equal division mechanism can be dispersed and put into the inner chamber of the nitrogen removal device body evenly, and the drawback that the nitrogen removal agent is accumulated in large quantities near the putting point in the traditional mode is avoided effectively.
[0020] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawing described in the embodiment briefly, and obviously, the following description of the drawings is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.
[0022] Figure 1 It is the three-dimensional structure diagram of the utility model;
[0023] Figure 2 It is the nitrogen removal device body sectional view of the utility model;
[0024] Figure 3 It is the nitrogen removal device body sectional view of the utility model; Figure 2 It is the local amplification structure schematic diagram of A place;
[0025] Figure 4 It is the agent inlet pipe and the manual driving mechanism schematic diagram of the utility model;
[0026] Figure 5 It is the power mechanism overall schematic diagram of the utility model;
[0027] Figure 6 It is the manual driving mechanism overall schematic diagram of the utility model;
[0028] Figure 7 It is the equal division mechanism overall schematic diagram of the utility model;
[0029] Figure 8 It is the reciprocating guide cylinder partial sectional view of the utility model;
[0030] Figure 9 It is the closed annular groove schematic diagram of the utility model.
[0031] In the drawings, the components represented by the respective reference numerals are listed as follows:
[0032] 1, denitrification device body; 2, agent inlet pipe; 3, sewage inlet pipe; 4, sewage outlet pipe; 5, equal division mechanism; 501, rotating pipe; 502, expansion cover; 503, inclined equal division plate; 504, gear plate; 6, manual rotation driving mechanism; 601, rotating shaft; 602, rotating gear; 603, hand wheel; 604, hand wheel handle; 7, power mechanism; 701, power motor; 702, output shaft; 703, sliding rod; 8, moving mechanism; 801, moving rod; 802, linkage rod; 9, reciprocating guide cylinder; 901, closed annular groove; 10, stirring mechanism; 1001, connecting shaft; 1002, connecting block; 1003, stirring fan blade; 1004, sliding block; 1005, rotating ring; 11, support frame. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0034] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.
[0035] Please refer to Figures 1-9 As shown in the drawings, the utility model is an environment-friendly sewage sterilization and denitrification device, which comprises a denitrification device body 1, an agent inlet pipe 2, a sewage inlet pipe 3 and a sewage outlet pipe 4 are communicated with the outer wall of the denitrification device body 1 respectively, an equal division mechanism 5 is rotatably installed at the top of the inner cavity of the denitrification device body 1, the equal division mechanism 5 is communicated with the agent inlet pipe 2, a manual rotation driving mechanism 6 is engaged with the equal division mechanism 5, the manual rotation driving mechanism 6 is rotatably installed on the denitrification device body 1, a power mechanism 7 is arranged at one end of the denitrification device body 1, a moving mechanism 8 is installed on the power mechanism 7, a reciprocating guide cylinder 9 is fixedly installed in the inner cavity of the denitrification device body 1, a closed annular groove 901 is formed in the inner wall of the reciprocating guide cylinder 9, the moving mechanism 8 is slidably matched with the closed annular groove 901, a stirring mechanism 10 is installed on the moving mechanism 8, and a support frame 11 for supporting the stirring mechanism 10 is fixedly installed on the denitrification device body 1.
[0036] Firstly, the external sewage can flow into the inner cavity of the denitrification device body 1 through the sewage inlet pipe 3, and the denitrified sewage in the denitrification device body 1 can be discharged from the sewage outlet pipe 4, and the sewage outlet valve is arranged on the sewage outlet pipe 4 to control the opening and closing of the sewage outlet pipe 4. When the sewage enters the denitrification device body 1, the denitrifying agent is then poured into the denitrification device body 1 through the agent inlet pipe 2. When the denitrifying agent is poured into the agent inlet pipe 2, the denitrifying agent first pours into the equal distribution mechanism 5 through the agent inlet pipe 2, and at the same time, the operator rotates the manual rotating drive mechanism 6 by hand. Because the manual rotating drive mechanism 6 is engaged with the equal distribution mechanism 5, and the equal distribution mechanism 5 is installed at the top of the inner cavity of the denitrification device body 1, the manual rotating drive mechanism 6 can drive the equal distribution mechanism 5 to rotate, and then under the rotating action of the equal distribution mechanism 5, the denitrifying agent falling on the equal distribution mechanism 5 can be uniformly dispersed and poured into the inner cavity of the denitrification device body 1, effectively avoiding the disadvantage that the denitrifying agent is accumulated near the pouring point in the traditional way.
[0037] Secondly, after adding the denitrifying agent to the sewage, the power mechanism 7 starts to work at this time. The power mechanism 7 drives the moving mechanism 8 to rotate. Because the moving mechanism 8 is in sliding fit with the closed annular groove 901 on the inner wall of the reciprocating guide cylinder 9, under the drive of the power mechanism 7, the moving mechanism 8 rotates and moves along the track of the closed annular groove 901, so that the moving mechanism 8 makes continuous and alternating movements away from and close to the power mechanism 7 in the denitrification device body 1. In this movement process, the moving mechanism 8 also slides on the power mechanism 7.
[0038] Finally, the stirring mechanism 10 installed on the moving mechanism 8 moves with the movement of the moving mechanism 8. The stirring mechanism 10 rotates and stirs the sewage and the poured denitrifying agent, and also makes alternating back-and-forth movements on the horizontal plane where the power mechanism 7 is located. On the one hand, the rotating and stirring of the power mechanism 7 can make the denitrifying agent further uniformly dispersed in the sewage, so that the denitrifying agent fully contacts with the nitrogen elements in the sewage, and fully improves the denitrification reaction efficiency. On the other hand, the alternating back-and-forth movements of the power mechanism 7 increase the stirring range by rotating and stirring, which can break the movement obstacles of the denitrifying agent caused by suspended solids, colloids and other impurities in the sewage in a large range, so that the denitrifying agent can freely move in the whole sewage system. The support frame 11 fixedly installed on the denitrification device body 1 supports the stirring mechanism 10, and ensures the stability of the stirring mechanism 10 in the working process.
[0039] In one embodiment, for the above-mentioned equal distribution mechanism 5, the equal distribution mechanism 5 comprises a rotating pipe 501, the rotating pipe 501 is rotatably installed on the denitrification device body 1, the rotating pipe 501 is in communication with the agent inlet pipe 2, and the bottom of the rotating pipe 501 is fixedly installed with an expansion cover 502.
[0040] The inner wall of the extension cover 502 is provided with a plurality of inclined and evenly distributed plates 503, and the outer wall of the rotating tube 501 is fixedly provided with a gear disc 504.
[0041] The manual rotating drive mechanism 6 comprises a rotating shaft 601 rotatably installed on the denitration device body 1 and extending through the denitration device body 1 to the inner cavity and the outside thereof, respectively. The bottom of the rotating shaft 601 is fixedly provided with a rotating gear 602, and the rotating gear 602 is engaged with the gear disc 504.
[0042] The top of the rotating shaft 601 is fixedly provided with a hand wheel 603, and the top of the hand wheel 603 is fixedly provided with a hand wheel handle 604 at an off-center end.
[0043] When the denitration agent is poured through the agent inlet pipe 2, the denitration agent enters the rotating tube 501 through the agent inlet pipe 2, and the rotating tube 501 is rotatably installed on the denitration device body 1. The operator rotates the hand wheel 603 by holding the hand wheel handle 604, and the hand wheel 603 drives the rotating shaft 601 to rotate synchronously. The rotation of the rotating shaft 601 drives the rotating gear 602 to rotate, and the rotating gear 602 is engaged with the gear disc 504, thereby driving the gear disc 504 and the rotating tube 501 fixedly connected therewith to rotate on the denitration device body 1. The extension cover 502 fixedly installed at the bottom of the rotating tube 501 rotates with the rotating tube 501. The inner wall of the extension cover 502 is provided with a plurality of inclined and evenly distributed plates 503. When the denitration agent flows into the extension cover 502 from the rotating tube 501, the extension cover 502 rotates. It should be noted that the inclined and evenly distributed plates 503 are inclined at a certain angle with the horizontal plane of the extension cover 502. The denitration agent collides with the inclined and evenly distributed plates 503 and is scattered in the inclined direction. With the continuous rotation of the extension cover 502, the denitration agent is uniformly scattered and poured into the inner part of the denitration device body 1 from different angles and positions, thereby avoiding the problem of large accumulation of denitration agent near the pouring point in the traditional way.
[0044] In one embodiment, for the power mechanism 7 described above, the power mechanism 7 comprises a power motor 701 fixedly installed on the outer wall of the denitration device body 1. The output end of the power motor 701 is fixedly provided with an output shaft 702, and the output shaft 702 is fixedly provided with a sliding rod 703.
[0045] The moving mechanism 8 comprises a moving rod 801 installed on the sliding rod 703. The circumferential surface of the moving rod 801 is fixedly provided with a linkage rod 802, and one end of the linkage rod 802 is located in the closed annular groove 901.
[0046] The stirring mechanism 10 comprises a connecting shaft 1001 fixedly installed on the moving rod 801, and a plurality of connecting blocks 1002 are linearly arranged on the circumferential surface of the connecting shaft 1001.
[0047] A plurality of stirring vanes 1003 are fixedly installed on the circumferential surface of each of the connecting blocks 1002, and a sliding block 1004 is symmetrically fixedly installed on the outer wall of the connecting shaft 1001 away from the moving rod 801.
[0048] A rotating ring 1005 is slidingly installed on the two sliding blocks 1004, and the rotating ring 1005 is rotatably installed with the support frame 11.
[0049] Working principle: after adding denitrification agent to the sewage, the power motor 701 starts to work, the power motor 701 is fixedly installed on the outer wall of the denitrification device body 1, and the output end drives the output shaft 702 to rotate after starting, the slide rod 703 fixed on the output shaft 702 rotates with the output shaft 702, when the slide rod 703 rotates, the moving rod 801 is driven to move around the central axis of the output shaft 702, at the same time, the linkage rod 802 fixed on the circular surface of the moving rod 801, one end of which is located in the closed annular groove 901 in the inner wall of the reciprocating guide cylinder 9, due to the sliding fit between the linkage rod 802 and the closed annular groove 901, the linkage rod 802 moves along the track of the closed annular groove 901 during the circular motion of the moving rod 801, which makes the moving rod 801 not only move circularly, but also move away from and close to the output shaft 702 in the denitrification device body 1 in succession and alternately, it is important to note that in this process, the moving rod 801 also slides on the slide rod 703, but will not be separated from the slide rod 703, since the connecting shaft 1001 is fixedly installed on the moving rod 801, the connecting shaft 1001 will move in the denitrification device body 1 along with the movement of the moving rod 801, that is, not only rotate, but also move away from and close to the output shaft 702 in succession and alternately, the plurality of connecting blocks 1002 linearly arranged on the circular surface of the connecting shaft 1001, and the plurality of stirring blades 1003 fixedly installed on the circular surface of the connecting block 1002, during the rotation and movement of the connecting shaft 1001, the stirring blades 1003 not only stir and mix the sewage and the denitrification agent that has been put in, but also move back and forth alternately on the horizontal plane where the connecting shaft 1001 is located, on the one hand, the rotation of the stirring blades 1003 can promote the further uniform dispersion of the denitrification agent in the sewage, so that the denitrification agent fully contacts with the nitrogen elements in the sewage, and the denitrification reaction efficiency is improved; on the other hand, the back and forth movement of the stirring blades 1003 increases the stirring range, which can break the movement obstacles of the denitrification agent caused by suspended solids, colloids and other impurities in the sewage in a large range, so that the denitrification agent can move freely in the whole sewage system, and moreover, the sliding blocks 1004 symmetrically fixed on the outer wall of the connecting shaft 1001 away from the moving rod 801 are slidably installed with the rotating ring 1005, and the rotating ring 1005 is rotatably installed with the support frame 11, thereby ensuring the stability of the connecting shaft 1001 during rotation and movement.
[0050] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.
[0051] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all of the details of the application, nor limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application. The application is merely limited by the claims and their full scope and equivalents.
Claims
1. An environmentally friendly wastewater sterilization and denitrification device, comprising a denitrification device body (1), wherein an inlet pipe (2), a wastewater inlet pipe (3), and a wastewater outlet pipe (4) are respectively connected to the outer wall of the denitrification device body (1), characterized in that: The inner cavity top of the denitrogenation device body (1) is rotationally installed with an equal division mechanism (5), the equal division mechanism (5) is communicated with the agent inlet pipe (2), the equal division mechanism (5) is engaged with a manual rotation driving mechanism (6), the manual rotation driving mechanism (6) is rotationally installed on the denitrogenation device body (1), one end of the denitrogenation device body (1) is provided with a power mechanism (7), the power mechanism (7) is installed with a moving mechanism (8), the inner cavity of the denitrogenation device body (1) is fixedly installed with a reciprocating guide cylinder (9), a closed annular groove (901) is formed in the inner wall of the reciprocating guide cylinder (9), the moving mechanism (8) is in sliding cooperation with the closed annular groove (901), the moving mechanism (8) is installed with a stirring mechanism (10), the denitrogenation device body (1) is fixedly installed with a support frame (11) supporting the stirring mechanism (10).
2. The environment-friendly sewage sterilization and denitrification device according to claim 1, characterized in that, The equal division mechanism (5) comprises a rotating pipe (501), the rotating pipe (501) is rotationally installed on the denitrogenation device body (1), the rotating pipe (501) is communicated with the agent inlet pipe (2), the bottom of the rotating pipe (501) is fixedly installed with an expansion cover (502).
3. The environment-friendly sewage sterilization and denitrification device according to claim 2, characterized in that, The inner wall of the expansion cover (502) is circumferentially arrayed with a plurality of inclined equal division plates (503), the outer wall of the rotating pipe (501) is fixedly installed with a gear disc (504).
4. The environment-friendly sewage sterilization and denitrification device according to claim 3, characterized in that, The manual rotation driving mechanism (6) comprises a rotating shaft (601), the rotating shaft (601) is rotationally installed on the denitrogenation device body (1) and extends through the denitrogenation device body (1) to its inner cavity and exterior, respectively, the bottom of the rotating shaft (601) is fixedly installed with a rotating gear (602), the rotating gear (602) is engaged with the gear disc (504).
5. The environment-friendly sewage sterilization and denitrification device according to claim 4, characterized in that, The top of the rotating shaft (601) is fixedly installed with a hand wheel (603), the top of the hand wheel (603) is fixedly installed with a hand wheel handle (604) at an eccentric end.
6. The environment-friendly sewage sterilization and denitrification device according to claim 5, characterized in that, The power mechanism (7) comprises a power motor (701), the power motor (701) is fixedly installed on the outer wall of the denitrogenation device body (1), the output end of the power motor (701) is fixedly installed with an output shaft (702), the output shaft (702) is fixedly installed with a sliding rod (703).
7. The environment-friendly sewage sterilization and denitrification device according to claim 6, characterized in that, The moving mechanism (8) comprises a moving rod (801), the moving rod (801) is installed on the sliding rod (703), the circumferential surface of the moving rod (801) is fixedly installed with a linkage rod (802), one end of the linkage rod (802) is located in the closed annular groove (901).
8. The environment-friendly sewage sterilization and denitrification device according to claim 7, characterized in that, The stirring mechanism (10) comprises a connecting shaft (1001), the connecting shaft (1001) is fixedly installed on the moving rod (801), a plurality of connecting blocks (1002) are linearly arrayed on the circumferential surface of the connecting shaft (1001).
9. The environmentally friendly sewage sterilization and denitrification device according to claim 8, characterized in that, The circumferential surface of the plurality of connecting blocks (1002) is fixedly provided with a plurality of stirring blades (1003), and the outer wall of the connecting shaft (1001) away from the moving rod (801) is symmetrically fixedly provided with sliding blocks (1004).
10. The environment-friendly sewage sterilization and denitrification device according to claim 9, characterized in that, Two sliding blocks (1004) are slidably provided with a rotating ring (1005), and the rotating ring (1005) is rotatably provided with the support frame (11).