Denitrification treatment device for sewage treatment

Abstract

The utility model discloses a denitrification treatment device for sewage treatment, which relates to the technical field of denitrification treatment for sewage treatment and comprises a support frame, a filtering air injection unit is arranged on the top surface of the support frame, a mixing unit is arranged on the inner side of the filtering air injection unit, and a scraping unit is arranged on the inner side of the filtering air injection unit. The material scraping unit comprises a fixed plate, the fixed plate is arranged in the filtering and air spraying unit, a T-shaped rod is arranged on the inner side of the fixed plate in a penetrating mode, a spring is arranged on the outer side of the T-shaped rod in a sleeving mode, and one end of the spring is fixedly connected to one side of the T-shaped rod. Through the arrangement of the fixing plate, the T-shaped rod, the spring, the attaching block and the scraping plate, in the denitrification stirring process, nitrogen-containing substances adhered to the inner wall of the treatment tank are scraped, and the purification effect of sewage denitrification treatment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment and denitrification treatment, in particular to a denitrification treatment device for sewage treatment. Background Art

[0002] Denitrification, also known as denitrification, is a biochemical process in which bacteria reduce nitrogen (N) from nitrate (NO₃⁻) to nitrogen gas (N₂) through a series of intermediate products (NO₂⁻, NO, and N₂O). The bacteria involved in this process are collectively known as denitrifying bacteria. Under anaerobic conditions, denitrifying bacteria respire (respiration) using nitrate (NO₃⁻) as an electron acceptor to obtain energy. This process is one of two pathways of nitrate respiration, the other being dissimilatory reduction of nitrate to ammonium (DNRA).

[0003] Publication No. CN217709170U currently discloses a denitrification treatment device for sewage, comprising a treatment box, an annular tube provided at the bottom of the inner wall of the treatment box, a plurality of air holes provided at the top of the annular tube, an air inlet pipe connected to the annular tube, the air inlet pipe extending to the outside of the treatment box, a plurality of stirring plates provided in the treatment box, a plurality of stirring rods vertically mounted on the end of the side wall of the stirring plate; by adopting agitation and flotation to denitrify the sewage, the denitrification agent can be easily and quickly diffused into the sewage, the agent can be easily used to comprehensively purify the nitrogen-containing substances in the sewage, and the produced particulate matter can be easily separated from the sewage, effectively improving the sewage purification effect.

[0004] In order to solve the problem of sewage treatment, the existing technology uses agitation and flotation to treat sewage for denitrification. However, during the mixing and stirring process, the inner wall of the stirring device cannot be scraped, which causes impurities in the sewage to stick to the inner wall of the stirring device, making it impossible to fully and evenly carry out denitrification treatment. Utility Model Content

[0005] The purpose of the utility model is to provide a denitrification treatment device for sewage treatment to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A denitrification treatment device for sewage treatment comprises a support frame, a filter jet unit is provided on the top surface of the support frame, a mixing unit is provided on the inner side of the filter jet unit, a scraping unit is provided on the inner side of the filter jet unit, and a discharge unit is provided on one side of the filter jet unit.

[0008] The scraper unit includes a fixed plate, which is arranged inside the filter jet unit, a T-shaped rod is provided on the inner side of the fixed plate, a spring is provided on the outer side of the T-shaped rod, one end of the spring is fixedly connected to one side of the T-shaped rod, one end of the spring is fixedly connected to one side of the fixed plate, one end of the T-shaped rod is fixedly connected to a fitting block, and one side of the fitting block is fixedly connected to a scraper.

[0009] A further improvement of the technical solution of the present utility model is that the filtering jet unit includes a processing tank, which is fixedly connected to the inner side of the top surface of the support frame, and a liquid inlet is provided on the top surface of the processing tank. A liquid collecting box is fixedly connected to the outer side of the processing tank, and a filter screen is slidably connected to the inner side of the liquid collecting box.

[0010] By adopting the above technical solution and arranging the liquid collecting tank and the filter screen, the effect of filtering the water produced after denitrification again is achieved.

[0011] A further improvement of the technical solution of the present utility model is that: the top surface of the liquid collecting box is fixedly connected to an air pump, the air outlet end of the air pump extends to the interior of the treatment tank and is sleeved with a connecting box, a plurality of air outlet nozzles are sleeved on the inner side of the top surface of the connecting box, and the bottom side of the connecting box is fixedly connected to the inner bottom surface of the treatment tank.

[0012] By adopting the above technical solution, through the arrangement of the air pump, the connection box and the air outlet nozzle, the effect of generating bubbles in the sewage and adsorbing nitrogen-containing substances in the sewage is achieved during the denitrification process.

[0013] A further improvement of the technical solution of the present utility model is that: the mixing unit includes a motor 1, the motor 1 is fixedly connected to the bottom surface of the processing tank, the output end of the motor 1 is transmission-connected to a rotating rod, the inner side of the rotating rod is threadedly connected to a plurality of fixing grooves, and the inner side of the fixing grooves is fixedly connected to a plurality of stirring rods.

[0014] By adopting the above technical solution, through the arrangement of the motor 1, the rotating rod, the fixed tank and the stirring rod, the effect of fully mixing the denitrifying agent with the sewage evenly during the dosing process is achieved.

[0015] A further improvement of the technical solution of the present invention is that: a plurality of stirring plates are fixedly connected to the inner side of the stirring rod, and a plurality of through holes are opened on the inner side of the stirring plate.

[0016] By adopting the above technical solution, a plurality of through holes provided on the inner side of the stirring plate can generate vortexes between the sewage and the stirring plate during the rotation process, thereby fully mixing the denitrification agent again.

[0017] A further improvement of the technical solution of the present utility model is that the discharge unit includes a water outlet box, which is sleeved on the inner side of the treatment tank, a feed pipe is sleeved on one side of the water outlet box, a second motor is fixedly connected to one side of the feed pipe, and the output end of the second motor is transmission-connected to a spiral feed blade.

[0018] By adopting the above technical solution, through the arrangement of the water outlet box, the feed pipe, the second motor, the spiral feed blade and the discharge pipe, the nitrogen-containing substances produced by the denitrification treatment can be automatically discharged, while making it convenient for workers to quickly collect the nitrogen-containing substances.

[0019] A further improvement of the technical solution of the present utility model is that a discharge pipe is sleeved on the inner side of the feed pipe, and a plurality of drainage holes are opened on the inner side of the feed pipe.

[0020] By adopting the above technical solution, the discharged nitrogen-containing substances can be separated into solid and liquid during the process of discharging the nitrogen-containing substances.

[0021] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0022] 1. The utility model provides a denitrification treatment device for sewage treatment. Through the arrangement of a fixed plate, a T-shaped rod, a spring, a fitting block and a scraper, the device can scrape nitrogen-containing substances adhering to the inner wall of the treatment tank during the denitrification stirring process, thereby effectively improving the purification effect of the sewage denitrification treatment. Through the arrangement of an air pump, a connecting box and an air outlet nozzle, the device can generate bubbles in the sewage during the denitrification process to adsorb nitrogen-containing substances in the sewage.

[0023] 2. The utility model provides a denitrification treatment device for sewage treatment. Through the arrangement of motor 1, rotating rod, fixed trough and stirring rod, the effect of uniformly and fully mixing the denitrifying agent with the sewage during the dosing process is achieved. Through the multiple through holes arranged on the inner side of the stirring plate, vortexes are generated between the sewage and the stirring plate during the rotation process, so that the denitrifying agent is fully mixed again. Through the arrangement of the water outlet box, feeding pipe, motor 2, spiral feeding blades and discharge pipe, the effect of automatically discharging nitrogen-containing substances generated by the denitrification treatment is achieved, and it is convenient for workers to quickly collect the nitrogen-containing substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the structure of the filter jet unit of the present invention;

[0026] Figure 3This is a schematic cross-sectional view of the structure of the mixing unit of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the scraping unit of the utility model;

[0028] Figure 5 This is a schematic structural cross-sectional diagram of the scraper unit of the present invention.

[0029] In the figure: 1. Support frame; 2. Filter jet unit; 21. Processing tank; 22. Liquid inlet; 23. Liquid collecting box; 24. Filter screen; 25. Air pump; 26. Connecting box; 27. Air outlet nozzle; 3. Mixing unit; 31. Motor 1; 32. Rotating rod; 33. Fixed groove; 34. Stirring rod; 35. Stirring plate; 36. Through hole; 4. Scraper unit; 41. Fixed plate; 42. T-bar; 43. Spring; 44. Fitting block; 45. Scraper; 5. Discharge unit; 51. Water outlet box; 52. Feed pipe; 53. Motor 2; 54. Spiral feed blade; 55. Discharge pipe; 56. Drain hole. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the embodiments:

[0031] Example 1

[0032] like Figure 1-5As shown, the utility model provides a denitrification treatment device for sewage treatment, including a support frame 1, a filter jet unit 2 is provided on the top surface of the support frame 1, a mixing unit 3 is provided on the inner side of the filter jet unit 2, a scraper unit 4 is provided on the inner side of the filter jet unit 2, and a discharge unit 5 is provided on one side of the filter jet unit 2. The scraper unit 4 includes a fixed plate 41, the fixed plate 41 is provided inside the filter jet unit 2, a T-shaped rod 42 is provided on the inner side of the fixed plate 41, a spring 43 is provided on the outer side of the T-shaped rod 42, one end of the spring 43 is fixedly connected to one side of the T-shaped rod 42, one end of the spring 43 is fixedly connected to one side of the fixed plate 41, one end of the T-shaped rod 42 is fixedly connected to a fitting block 44, one side of the fitting block 44 is fixedly connected to a scraper 45, the mixing unit 3 includes a motor 31, and the motor 31 is fixed The output end of the motor 31 is connected to the bottom surface of the treatment tank 21, and the rotating rod 32 is connected to the output end of the motor 31. The inner side of the rotating rod 32 is threaded with a plurality of fixed grooves 33. The inner side of the fixed grooves 33 is fixedly connected to a plurality of stirring rods 34. The inner side of the stirring rod 34 is fixedly connected to a plurality of stirring plates 35. The inner side of the stirring plate 35 is provided with a plurality of through holes 36. The motor 31 is controlled to rotate, and at the same time, the plurality of fixed grooves 33 on the inner side of the rotating rod 32 are driven to fully mix the sewage and the denitrification agent inside the treatment tank 21. At the same time, the sewage and agent mixture passes through the inner side of the through holes 36 to make them more fully integrated. At the same time, during the rotation of the stirring plate 35, the T-shaped rod 42 on the inner side of the fixed plate 41 and the spring 43 cooperate with each other to drive the scraper 45 on the inner side of the fitting block 44 to scrape the nitrogen-containing substances adhered to the inside of the treatment tank 21.

[0033] Example 2

[0034] like Figure 1-5 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the filter jet unit 2 includes a processing tank 21, the processing tank 21 is fixedly connected to the inner side of the top surface of the support frame 1, the top surface of the processing tank 21 is provided with a liquid inlet 22, the outer side of the processing tank 21 is fixedly connected to a liquid collecting box 23, the inner side of the liquid collecting box 23 is slidably connected to a filter screen 24, the top surface of the liquid collecting box 23 is fixedly connected to an air pump 25, the air outlet end of the air pump 25 extends to the interior of the processing tank 21 and is sleeved with a connection box 26 A plurality of air outlet nozzles 27 are sleeved on the inner side of the top surface of the connecting box 26, and the bottom side of the connecting box 26 is fixedly connected to the inner bottom surface of the treatment tank 21. The sewage to be treated is continuously placed in the interior of the treatment tank 21 through the liquid inlet 22, and then the denitrification agent is placed in the interior of the treatment tank 21 through the liquid inlet 22. The air pump 25 is controlled to work, and then the gas is pumped into the interior of the treatment tank 21 through the plurality of air outlet nozzles 27 on the inner side of the connecting box 26 to form bubbles, and at the same time adsorbed with the nitrogen-containing substances.

[0035] Example 3

[0036] like Figure 1-5 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the discharge unit 5 includes a water outlet box 51, the water outlet box 51 is sleeved on the inner side of the treatment tank 21, and a feed pipe 52 is sleeved on one side of the water outlet box 51, and a motor 2 53 is fixedly connected to one side of the feed pipe 52. The output end of the motor 2 53 is transmission-connected with a spiral feed blade 54, and a discharge pipe 55 is sleeved on the inner side of the feed pipe 52. A plurality of drainage holes 56 are provided on the inner side of the feed pipe 52. The nitrogen-containing substance flows to the inside of the water outlet box 51 through overflow and enters the inside of the feed pipe 52. Then, the drainage holes 56 separate the nitrogen-containing substance mixture into solid and liquid. Then, the motor 2 53 is controlled to drive the spiral feed blade 54 to rotate, and then the nitrogen-containing substance is discharged through the discharge pipe 55. At the same time, the separated liquid is filtered again through the filter screen 24 inside the liquid collecting box 23, so as to improve the purification effect.

[0037] The following is a detailed description of the working principle of the denitrification treatment device for sewage treatment.

[0038] like Figure 1-5 As shown, the sewage to be treated is continuously placed in the interior of the treatment tank 21 through the liquid inlet 22, and then the denitrification agent is placed in the interior of the treatment tank 21 through the liquid inlet 22, and the air pump 25 is controlled to work, and then the gas is pumped into the interior of the treatment tank 21 through the multiple air outlet nozzles 27 on the inner side of the connection box 26 to form bubbles, and at the same time, it is adsorbed with the nitrogen-containing substances, and at the same time, the motor 31 is controlled to rotate, and at the same time, the multiple fixed grooves 33 on the inner side of the rotating rod 32 are driven to fully mix the sewage and the denitrification agent in the treatment tank 21, and at the same time, the sewage and agent mixture passes through the inner side of the through hole 36 to make it more fully fused, and at the same time, during the rotation of the stirring plate 35 In the process, through the mutual cooperation between the T-shaped rod 42 and the spring 43 on the inner side of the fixed plate 41, the scraper 45 on the inner side of the fitting block 44 is driven to scrape the nitrogen-containing substances adhering to the inside of the treatment tank 21, and merge with the bubbles again, and rise to the top surface of the sewage. At the same time, the nitrogen-containing substances flow to the inside of the water outlet box 51 through the overflow, and enter the inside of the feed pipe 52. Then the drainage hole 56 separates the nitrogen-containing substance mixture into solid and liquid, and then controls the motor 2 53 to drive the spiral feed blade 54 to rotate, and then discharges the nitrogen-containing substances through the discharge pipe 55. At the same time, the separated liquid is filtered again through the filter screen 24 inside the liquid collecting box 23, so as to improve the purification effect.

[0039] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A denitrification treatment device for sewage treatment, comprising a support frame (1), characterized in that: The top surface of the support frame (1) is provided with a filter jet unit (2), the inner side of the filter jet unit (2) is provided with a mixing unit (3), the inner side of the filter jet unit (2) is provided with a scraping unit (4), and one side of the filter jet unit (2) is provided with a discharging unit (5); The scraper unit (4) includes a fixed plate (41), which is arranged inside the filter jet unit (2), and a T-shaped rod (42) is provided on the inner side of the fixed plate (41), and a spring (43) is provided on the outer side of the T-shaped rod (42), one end of the spring (43) is fixedly connected to one side of the T-shaped rod (42), and one end of the spring (43) is fixedly connected to one side of the fixed plate (41), one end of the T-shaped rod (42) is fixedly connected to a fitting block (44), and one side of the fitting block (44) is fixedly connected to a scraper (45).

2. A denitrification treatment device for sewage treatment according to claim 1, characterized in that: The filtering jet unit (2) comprises a processing tank (21), the processing tank (21) being fixedly connected to the inner side of the top surface of the support frame (1), the top surface of the processing tank (21) being provided with a liquid inlet (22), the outer side of the processing tank (21) being fixedly connected to a liquid collecting box (23), and the inner side of the liquid collecting box (23) being slidably connected to a filter screen (24).

3. A denitrification treatment device for sewage treatment according to claim 2, characterized in that: The top surface of the liquid collecting box (23) is fixedly connected to an air pump (25), the air outlet end of the air pump (25) extends to the interior of the processing tank (21) and is sleeved with a connecting box (26), the inner side of the top surface of the connecting box (26) is sleeved with a plurality of air outlet nozzles (27), and the bottom side of the connecting box (26) is fixedly connected to the inner bottom surface of the processing tank (21).

4. The denitrification treatment device for sewage treatment according to claim 1, characterized in that: The mixing unit (3) comprises a motor 1 (31), wherein the motor 1 (31) is fixedly connected to the bottom surface of the processing tank (21), and the output end of the motor 1 (31) is transmission-connected to a rotating rod (32), the inner side of the rotating rod (32) is threadedly connected to a plurality of fixing grooves (33), and the inner side of the fixing grooves (33) is fixedly connected to a plurality of stirring rods (34).

5. A denitrification treatment device for sewage treatment according to claim 4, characterized in that: A plurality of stirring plates (35) are fixedly connected to the inner side of the stirring rod (34), and a plurality of through holes (36) are provided on the inner side of the stirring plate (35).

6. The denitrification treatment device for sewage treatment according to claim 1, characterized in that: The discharge unit (5) includes a water outlet box (51), the water outlet box (51) is sleeved on the inner side of the processing tank (21), a material delivery pipe (52) is sleeved on one side of the water outlet box (51), a motor 2 (53) is fixedly connected to one side of the material delivery pipe (52), and the output end of the motor 2 (53) is transmission-connected to a spiral material delivery blade (54).

7. A denitrification treatment device for sewage treatment according to claim 6, characterized in that: A discharge pipe (55) is sleeved on the inner side of the delivery pipe (52), and a plurality of drainage holes (56) are opened on the inner side of the delivery pipe (52).

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