Integrated efficient nitrogen removal device for domestic sewage

Abstract

The invention relates to the technical field of domestic sewage, and discloses a domestic sewage integrated efficient nitrogen removal device which comprises a stirring barrel, a feeding mechanism is arranged above the stirring barrel, a drying mechanism is arranged below the stirring barrel, the feeding mechanism comprises a top cover, and the bottom surface of the top cover is fixedly connected with the top end of the stirring barrel; a rotating ring is rotatably connected to the inner wall of the top cover, two partition plates are fixedly connected to the inner wall of the rotating ring, a plurality of same first circular openings are formed in the bottom face of the rotating ring, and a gear ring is fixedly connected to the outer surface of the rotating ring. According to the integrated efficient nitrogen removal device for the domestic sewage, a second stepping motor is arranged, magnesium ammonium phosphate located on the upper surface of the base is pushed to move in a running state of the second stepping motor, heat generated during running of a heating wire is matched for heating treatment, and it is avoided that when the device is used, the device is not prone to damage. The surface of the just separated magnesium ammonium phosphate contains a large amount of water, so that the magnesium ammonium phosphate is easy to adhere to the inner wall of the device and is not easy to take out completely.

Description

Technical Field

[0001] The invention relates to the technical field of domestic sewage, and in particular to an integrated and efficient nitrogen removal device for domestic sewage. Background Art

[0002] Domestic sewage is wastewater discharged from residents' daily lives. It mainly comes from residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and industrial toilets. The pollutants contained in domestic sewage are mainly ammonia and nitrogen, both of which cannot be discharged directly into the water. Excessive nitrogen in the water body will cause eutrophication, deteriorate water quality, and affect the growth and reproduction of aquatic organisms. Therefore, the nitrogen in domestic sewage needs to be treated before it is discharged, and high-efficiency nitrogen removal equipment is required.

[0003] At present, when the existing high-efficiency nitrogen removal device is used, magnesium ions and phosphates are generally added to the sewage, and then stirred to produce magnesium ammonium phosphate precipitation. However, when the existing technology is adding magnesium ions and phosphates, it can only add magnesium ions and phosphates into domestic sewage at fixed points, and it is impossible to add magnesium ions and phosphates in small quantities and multiple times in multiple parts, resulting in the situation that the magnesium ions and phosphates cannot be quickly and fully mixed with the domestic sewage. In addition, after the magnesium ions and phosphates are mixed with the domestic sewage to produce magnesium ammonium phosphate precipitation, it is necessary to remove it for subsequent processing into fertilizer. During the removal process, since the magnesium ammonium phosphate has just been separated from the sewage, there are still a large number of water molecules on its surface, which is easy to adhere to the inner wall of the device, and there is a problem that it is not easy to remove all of it. Summary of the invention

[0004] The object of the present invention is to provide an integrated and efficient nitrogen removal device for domestic sewage to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated high-efficiency nitrogen removal device for domestic sewage, and a feeding method: S1: A first stepper motor is provided, and the operation of the first stepper motor can drive the gear fixed at the output end of the first stepper motor to rotate, and there is a meshing connection relationship between the gear and the gear ring. Therefore, the rotational power generated when the first stepper motor is running will eventually be transmitted to the gear ring, thereby driving the gear ring to rotate, and a rotating ring is fixed to the inner wall of the gear ring, and two partition plates fixed on the inner wall of the rotating ring can divide the space inside the gear ring into two equal parts, thereby respectively containing magnesium powder containing magnesium ions and phosphate containing more phosphate groups, and a first circular opening is provided on the bottom surface of the rotating ring, and a second circular opening is also provided on the upper surface of the top cover, thereby, the magnesium powder containing magnesium ions and the phosphate containing more phosphate groups can flow out to the inside of the mixing drum according to the first circular opening and the second circular opening under the premise that the first stepper motor drives the rotating ring to rotate, thereby achieving the purpose of adding magnesium powder and sulfate at multiple locations and in small quantities and multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate groups in the phosphate, and effectively avoiding the problem of uneven mixing.

[0006] S2: Through the contact between the base and the magnesium ammonium phosphate produced by the mixture, the heating wire fixed on the inner wall of the base can be used to generate a certain amount of heat. In combination with the fixed connection between the inner wall of the scraper and the rotating shaft, the rotating shaft and the scraper can be driven to rotate by the second stepper motor, thereby driving the magnesium ammonium phosphate precipitate to move. During the movement, the heat generated by the operation of the heating wire can heat the magnesium ammonium phosphate on the upper surface of the base, effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated will contain a large amount of moisture, which is easy to stick to the inner wall of the device and is not easy to be removed completely.

[0007] It comprises a mixing drum, a feeding mechanism is arranged above the mixing drum, and a drying mechanism is arranged below the mixing drum; The feeding mechanism comprises a top cover, the bottom surface of the top cover is fixedly connected to the top end of the mixing drum, the inner wall of the top cover is rotatably connected to a rotating ring, the inner wall of the rotating ring is fixedly connected to two partition plates, the bottom surface of the rotating ring is provided with a plurality of identical first circular openings, the outer surface of the rotating ring is fixedly connected to a gear ring, the upper surface of the top cover is provided with a plurality of identical second circular openings, the outer surface of the mixing drum is fixedly connected to a first stepper motor, the output end of the first stepper motor is fixedly connected to a gear, and the outer surface of the gear is meshed with the outer surface of the gear ring; The drying mechanism includes a base, the upper surface of the base is fixedly connected to the bottom end of the mixing drum, the inner wall of the base is fixedly connected to a heating wire, the interior of the mixing drum is clamped with a baffle, the outer surface of the baffle is fixedly connected to a handle, and a scraper is provided inside the mixing drum, and the bottom surface of the scraper is in contact with the upper surface of the base.

[0008] Preferably, a fixing ring is fixedly connected to the outer surface of the mixing drum, two groups of supporting legs are fixedly connected to the bottom surface of the fixing ring, and two supporting plates are fixedly connected to the bottom surface of each group of supporting legs.

[0009] Preferably, a control box is fixedly connected to the outer surface of the mixing drum, and the bottom surface of the control box is fixedly connected to the upper surface of the fixing ring.

[0010] Preferably, a controller is fixedly connected to the inner wall of the control box, and the controller is electrically connected to the first stepper motor via a wire.

[0011] Preferably, a movable door is movably hinged on the front of the control box, and a pulling handle is fixedly connected to the front of the movable door.

[0012] Preferably, the outer surface of the mixing drum is fixedly connected to a drain pipe, and the outer surface of the drain pipe is fixedly connected to a solenoid valve.

[0013] Preferably, a water injection port is provided on the upper surface of the top cover, a water injection pipe is fixedly connected to the upper surface of the top cover, and the bottom end of the water injection pipe is communicated with the water injection port.

[0014] Preferably, a fixing seat is fixedly connected to the upper surface of the top cover, a second stepping motor is fixedly connected to the inner wall of the fixing seat, and the second stepping motor is electrically connected to the controller via a wire.

[0015] Preferably, a bearing is fixedly connected to the inner wall of the mixing drum, a rotating shaft is fixedly connected to the inner ring of the bearing, and the top end of the rotating shaft is fixedly connected to the output end of the second stepper motor.

[0016] Preferably, six groups of stirring rods are fixedly connected to the outer surface of the rotating shaft, the inner wall of the scraper is fixedly connected to the outer surface of the rotating shaft, and the heating wire is electrically connected to the controller via a wire.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: The present invention is provided with a first stepper motor, and the operation of the first stepper motor can drive the gear fixed at the output end of the first stepper motor to rotate, and there is a meshing connection relationship between the gear and the gear ring, so the rotational power generated by the operation of the first stepper motor will eventually be transmitted to the gear ring, thereby driving the gear ring to rotate, and a rotating ring is fixed to the inner wall of the gear ring, and two partition plates fixed on the inner wall of the rotating ring can divide the space inside the gear ring into two equal parts, thereby respectively containing magnesium powder containing magnesium ions and phosphate containing more phosphate groups, and a first circular opening is provided on the bottom surface of the rotating ring, and a second circular opening is also provided on the upper surface of the top cover, thereby, under the premise that the operation of the first stepper motor drives the rotating ring to rotate, the magnesium powder containing magnesium ions and the phosphate containing more phosphate groups can be placed according to the first circular opening and the second circular opening. shaped outlet to the inside of the mixing drum, thereby achieving the purpose of adding magnesium powder and sulfate at multiple points and in small quantities multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate radicals in the phosphate, and effectively avoiding the problem of uneven mixing; and by providing a base, the base can be in contact with the magnesium ammonium phosphate produced by the mixing, and the heating wire fixed on the inner wall of the base can be operated to generate a certain amount of heat through heating by the heating wire, and the scraper is fixedly connected to the rotating shaft, so that when the second stepper motor is running, the magnesium ammonium phosphate on the upper surface of the base can be pushed to move, and the heat generated by the operation of the heating wire can be used for heating treatment, effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated contains a large amount of moisture, which is easy to stick to the inner wall of the device and is not easy to be completely removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the integrated high-efficiency nitrogen removal device for domestic sewage of the present invention; Figure 2 It is a structural schematic diagram of the controller of the present invention; Figure 3 It is a structural schematic diagram of the solenoid valve of the present invention; Figure 4 is a schematic structural diagram of a second stepping motor of the present invention; Figure 5 It is a schematic structural diagram of the top plate of the present invention; Figure 6 It is a structural schematic diagram of the bearing of the present invention; Figure 7 It is a structural schematic diagram of the scraper of the present invention; Figure 8 It is a schematic diagram of the structure of the heating wire of the present invention.

[0019] Among them: 1. mixing drum; 2. feeding mechanism; 201. rotating ring; 202. partition plate; 203. first circular opening; 204. top cover; 205. gear ring; 206. first stepper motor; 207. gear; 208. second circular opening; 3. drying mechanism; 301. baffle; 302. handle; 303. scraper; 304. base; 305. heating wire; 4. movable door; 5. control box; 6. pull handle; 7. support plate; 8. fixed ring; 9. support leg; 10. controller; 11. drain pipe; 12. solenoid valve; 13. water injection pipe; 14. fixed seat; 15. second stepper motor; 16. rotating shaft; 17. bearing; 18. water injection port; 19. stirring rod. DETAILED DESCRIPTION

[0020] 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 described embodiments 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 creative work are within the scope of protection of the present invention. Example 1

[0021] See also Figure 1-8 , an integrated and efficient nitrogen removal device for domestic sewage, feeding method: S1: A first stepper motor 206 is provided. The operation of the first stepper motor 206 can drive the gear 207 fixed at the output end of the first stepper motor 206 to rotate. There is a meshing connection relationship between the gear 207 and the gear ring 205. Therefore, the rotational power generated by the first stepper motor 206 when it is running will eventually be transmitted to the gear ring 205, thereby driving the gear ring 205 to rotate. A rotating ring 201 is fixed to the inner wall of the gear ring 205. Two partition plates 202 fixed to the inner wall of the rotating ring 201 can divide the space inside the gear ring 205 into two equal parts, thereby respectively containing magnesium powder containing magnesium ions and Phosphates containing more phosphate radicals, and a first circular opening 203 is provided on the bottom surface of the rotating ring 201, and a second circular opening 208 is also provided on the upper surface of the top cover 204. Therefore, magnesium powder containing magnesium ions and phosphate containing more phosphate radicals can flow out into the interior of the mixing drum 1 through the first circular opening 203 and the second circular opening 208 under the premise that the first stepper motor 206 drives the rotating ring 201 to rotate, thereby achieving the purpose of adding magnesium powder and sulfate at multiple locations and in small amounts multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate radicals in the phosphate radicals, and effectively avoiding the problem of uneven mixing.

[0022] S2: The base 304 can be in contact with the magnesium ammonium phosphate produced by the mixture, and the heating wire 305 fixed on the inner wall of the base 304 can be operated. The heating wire 305 can generate a certain amount of heat by heating, and the inner wall of the scraper 303 is connected to the rotating shaft 16, and the second stepper motor 15 can be used to drive the rotating shaft 16 and the scraper 303 to rotate, thereby driving the magnesium ammonium phosphate precipitate to move. During the movement, the heat generated by the operation of the heating wire 305 can heat the magnesium ammonium phosphate on the upper surface of the base 304, effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated will contain a large amount of moisture, which is easy to stick to the inner wall of the device and is not easy to be removed completely.

[0023] It comprises a mixing drum 1, a feeding mechanism 2 is arranged above the mixing drum 1, and a drying mechanism 3 is arranged below the mixing drum 1; The feeding mechanism 2 includes a top cover 204, the bottom surface of the top cover 204 is fixedly connected to the top end of the mixing drum 1, the inner wall of the top cover 204 is rotatably connected to a rotating ring 201, the inner wall of the rotating ring 201 is fixedly connected to two partition plates 202, the bottom surface of the rotating ring 201 is provided with a plurality of identical first circular openings 203, the outer surface of the rotating ring 201 is fixedly connected to a gear ring 205, the upper surface of the top cover 204 is provided with a plurality of identical second circular openings 208, the outer surface of the mixing drum 1 is fixedly connected to a first stepper motor 206, the output end of the first stepper motor 206 is fixedly connected to a gear 207, and the outer surface of the gear 207 is meshed with the outer surface of the gear ring 205.

[0024] A fixing ring 8 is fixedly connected to the outer surface of the mixing drum 1, and two groups of supporting legs 9 are fixedly connected to the bottom surface of the fixing ring 8. The bottom surface of each group of supporting legs 9 is fixedly connected to two supporting plates 7. By providing the fixing ring 8, supporting legs 9 and supporting plates 7, the supporting legs 9 and the mixing drum 1 can be connected through the fixing ring 8 to achieve a connecting effect, and the supporting legs 9 can provide supporting force for the device, and the supporting plates 7 can increase the contact area between the supporting legs 9 and the ground, making the device more stable.

[0025] The outer surface of the mixing drum 1 is fixedly connected to a control box 5, and the bottom surface of the control box 5 is fixedly connected to the upper surface of the fixing ring 8. By providing the control box 5, the control box 5 can be connected to the outer surface of the mixing drum 1, so that the electrical equipment inside the control box 5 can be protected to ensure its operation is more stable.

[0026] The inner wall of the control box 5 is fixedly connected with a controller 10, and the controller 10 is electrically connected to the first stepper motor 206 through a wire. By providing the controller 10, the operation of the controller 10 can better control the coordination between various electronic components, making the device run more smoothly.

[0027] A movable door 4 is movably hinged on the front of the control box 5, and a pulling handle 6 is fixedly connected to the front of the movable door 4. By providing the pulling handle 6 and the movable door 4, the movable door 4 can be opened by the pulling handle 6, providing a good force position for the movable door 4, and the device inside the control box 5 can be operated more conveniently.

[0028] The outer surface of the mixing drum 1 is fixedly connected to a drain pipe 11, and the outer surface of the drain pipe 11 is fixedly connected to a solenoid valve 12. By providing the drain pipe 11 and the solenoid valve 12, the sewage above the sediment from which ammonia nitrogen has been removed can be discharged through the drain pipe 11, leaving only the sediment below the drain pipe 11. Even if there is a small amount of sewage inside the sediment, it will not affect the subsequent drying process.

[0029] The specific implementation of this embodiment is as follows: first, the first stepper motor 206 is controlled to run. The running of the first stepper motor 206 can drive the gear 207 fixed at the output end of the first stepper motor 206 to rotate. There is a meshing connection relationship between the gear 207 and the gear ring 205. Therefore, the rotational power generated by the first stepper motor 206 when it runs will eventually be transmitted to the gear ring 205, thereby driving the gear ring 205 to rotate. A rotating ring 201 is fixed to the inner wall of the gear ring 205. Two partition plates 202 fixed to the inner wall of the rotating ring 201 can divide the space inside the gear ring 205 into two equal parts, so that the space containing magnesium ions can be respectively contained. The bottom surface of the rotating ring 201 is provided with a first circular opening 203, and the upper surface of the top cover 204 is also provided with a second circular opening 208. Therefore, the magnesium powder containing magnesium ions and the phosphate containing more phosphate can flow out into the interior of the mixing drum 1 through the first circular opening 203 and the second circular opening 208 under the premise that the first stepper motor 206 drives the rotating ring 201 to rotate, thereby achieving the purpose of adding magnesium powder and sulfate at multiple points and in small amounts multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate in the phosphate, and effectively avoiding the problem of uneven mixing. Example 2

[0030] See also Figure 1-8 The drying mechanism 3 includes a base 304, the upper surface of the base 304 is fixedly connected to the bottom end of the mixing drum 1, the inner wall of the base 304 is fixedly connected with a heating wire 305, the interior of the mixing drum 1 is clamped with a baffle 301, the outer surface of the baffle 301 is fixedly connected with a handle 302, and a scraper 303 is arranged inside the mixing drum 1, and the bottom surface of the scraper 303 is in contact with the upper surface of the base 304.

[0031] A water injection port 18 is provided on the upper surface of the top cover 204, and a water injection pipe 13 is fixedly connected to the upper surface of the top cover 204. The bottom end of the water injection pipe 13 is communicated with the water injection port 18. By providing the water injection port 18 and the water injection pipe 13, sewage can be injected into the water injection port 18 through the water injection pipe 13, which facilitates the input of sewage into the mixing drum 1 and the treatment of ammonia nitrogen in the sewage.

[0032] The upper surface of the top cover 204 is fixedly connected to a fixing seat 14, and the inner wall of the fixing seat 14 is fixedly connected to a second stepper motor 15. The second stepper motor 15 is electrically connected to the controller 10 via a wire. By providing the fixing seat 14 and the second stepper motor 15, the second stepper motor 15 can be fixed by the fixing seat 14, so that the second stepper motor 15 can run more stably.

[0033] A bearing 17 is fixedly connected to the inner wall of the mixing drum 1, and a rotating shaft 16 is fixedly connected to the inner ring of the bearing 17. The top of the rotating shaft 16 is fixedly connected to the output end of the second stepper motor 15. By providing the bearing 17 and the rotating shaft 16, the rotating shaft 16 can be fixed by the bearing 17, so that the rotation of the rotating shaft 16 is more stable, and the rotating shaft 16 can transmit the rotational power generated when the second stepper motor 15 is running.

[0034] Six groups of stirring rods 19 are fixedly connected to the outer surface of the rotating shaft 16, the inner wall of the scraper 303 is fixedly connected to the outer surface of the rotating shaft 16, the heating wire 305 is electrically connected to the controller 10 through a wire, and by providing the stirring rods 19, the sewage can be stirred by the stirring rods 19, so that the sewage can be quickly mixed with the magnesium powder and phosphate.

[0035] The specific implementation of this embodiment is as follows: the base 304 can be in contact with the magnesium ammonium phosphate produced by the mixture, and the heating wire 305 fixed on the inner wall of the base 304 can be operated. The heating wire 305 can generate a certain amount of heat by heating, and the inner wall of the scraper 303 is connected to the fixed shaft 16. The second stepper motor 15 can drive the shaft 16 and the scraper 303 to rotate, thereby driving the magnesium ammonium phosphate precipitate to move. During the movement, the heat generated by the operation of the heating wire 305 can heat the magnesium ammonium phosphate on the upper surface of the base 304, effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated will contain a large amount of moisture, which is easy to stick to the inner wall of the device and is not easy to be removed completely. Example 3

[0036] See also Figure 1-8, the specific implementation of this embodiment is as follows: a first stepper motor 206 is provided, and the operation of the first stepper motor 206 can drive the gear 207 fixed at the output end of the first stepper motor 206 to rotate, and there is a meshing connection relationship between the gear 207 and the gear ring 205, so the rotational power generated by the operation of the first stepper motor 206 will eventually be transmitted to the gear ring 205, thereby driving the gear ring 205 to rotate, and a rotating ring 201 is fixed on the inner wall of the gear ring 205, and two partition plates 202 fixed on the inner wall of the rotating ring 201 can divide the space inside the gear ring 205 into two equal parts, thereby respectively containing magnesium powder containing magnesium ions and phosphate containing more phosphate groups, and a first circular opening 203 is provided on the bottom surface of the rotating ring 201, and a second circular opening 208 is also provided on the upper surface of the top cover 204, thereby the magnesium powder containing magnesium ions and the phosphate containing more phosphate groups can be placed according to the first stepper motor 206 under the premise that the operation of the first stepper motor 206 drives the rotating ring 201 to rotate. A circular opening 203 and a second circular opening 208 flow out to the inside of the mixing drum 1, so as to achieve the purpose of adding magnesium powder and sulfate at multiple points and in small quantities multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate radicals in the phosphate, effectively avoiding the problem of uneven mixing, and being able to generate a certain amount of heat by heating the heating wire 305 through the contact relationship between the base 304 and the magnesium ammonium phosphate produced by the mixing, and cooperating with the operation of the heating wire 305 fixed on the inner wall of the base 304, and cooperating with the fixed connection relationship between the inner wall of the scraper 303 and the rotating shaft 16, the second stepping motor 15 is used to drive the rotating shaft 16 and the scraper 303 to rotate, thereby driving the magnesium ammonium phosphate precipitate to move, and in the process of movement, the heat generated by the operation of the heating wire 305 can heat the magnesium ammonium phosphate on the upper surface of the base 304, effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated will contain a large amount of moisture, which is easy to adhere to the inner wall of the device and is not easy to be completely removed.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated and efficient nitrogen removal device for domestic sewage, feeding method: S1: A first stepper motor (206) is provided. The operation of the first stepper motor (206) can drive a gear (207) fixed at the output end of the first stepper motor (206) to rotate. There is a meshing connection relationship between the gear (207) and the gear ring (205). Therefore, the rotational power generated by the operation of the first stepper motor (206) will eventually be transmitted to the gear ring (205), thereby driving the gear ring (205) to rotate. A rotating ring (201) is fixed on the inner wall of the gear ring (205). Two partition plates (202) fixed on the inner wall of the rotating ring (201) can divide the space inside the gear ring (205) into two equal parts, thereby respectively containing magnesium ions. The bottom surface of the rotating ring (201) is provided with a first circular opening (203), and the upper surface of the top cover (204) is also provided with a second circular opening (208). Thus, the magnesium powder containing magnesium ions and the phosphate containing a large amount of phosphate can flow out into the interior of the mixing drum (1) through the first circular opening (203) and the second circular opening (208) under the premise that the first stepper motor (206) is running to drive the rotating ring (201) to rotate, thereby achieving the purpose of adding magnesium powder and sulfate at multiple locations and in small amounts multiple times, ensuring that the sewage can be quickly mixed with the magnesium ions in the magnesium powder and the phosphate in the phosphate, and effectively avoiding the problem of uneven mixing.

2. S2: The base (304) can be in contact with the magnesium ammonium phosphate produced by the mixture, and the heating wire (305) fixed to the inner wall of the base (304) can be operated to generate a certain amount of heat through heating by the heating wire (305). In addition, the inner wall of the scraper (303) is fixedly connected to the rotating shaft (16), and the second stepper motor (15) is operated to drive the rotating shaft (16) and the scraper (303) to rotate, thereby driving the magnesium ammonium phosphate precipitate to move. During the movement, the heat generated by the operation of the heating wire (305) can heat the magnesium ammonium phosphate on the upper surface of the base (304), effectively avoiding the problem that when the device is in use, the surface of the magnesium ammonium phosphate just separated contains a large amount of moisture, which is easy to adhere to the inner wall of the device and is not easy to be completely removed.

3. It includes a mixing drum (1), characterized in that: A feeding mechanism (2) is provided above the mixing drum (1), and a drying mechanism (3) is provided below the mixing drum (1); The feeding mechanism (2) comprises a top cover (204), the bottom surface of the top cover (204) is fixedly connected to the top of the mixing drum (1), the inner wall of the top cover (204) is rotatably connected to a rotating ring (201), the inner wall of the rotating ring (201) is fixedly connected to two partition plates (202), the bottom surface of the rotating ring (201) is provided with a plurality of identical first circular openings (203), the outer surface of the rotating ring (201) is fixedly connected to a gear ring (205), the upper surface of the top cover (204) is provided with a plurality of identical second circular openings (208), the outer surface of the mixing drum (1) is fixedly connected to a first stepper motor (206), the output end of the first stepper motor (206) is fixedly connected to a gear (207), the outer surface of the gear (207) is meshed with the outer surface of the gear ring (205); The drying mechanism (3) comprises a base (304), the upper surface of the base (304) being fixedly connected to the bottom end of the mixing drum (1), the inner wall of the base (304) being fixedly connected to a heating wire (305), the interior of the mixing drum (1) being clamped with a baffle (301), the outer surface of the baffle (301) being fixedly connected to a handle (302), and the interior of the mixing drum (1) being provided with a scraper (303), the bottom surface of the scraper (303) being in contact with the upper surface of the base (304).

4. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 1 is characterized by: A fixing ring (8) is fixedly connected to the outer surface of the mixing drum (1), two groups of supporting legs (9) are fixedly connected to the bottom surface of the fixing ring (8), and two supporting plates (7) are fixedly connected to the bottom surface of each group of supporting legs (9).

5. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 2 is characterized by: A control box (5) is fixedly connected to the outer surface of the mixing drum (1), and a bottom surface of the control box (5) is fixedly connected to the upper surface of a fixing ring (8).

6. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 3 is characterized by: A controller (10) is fixedly connected to the inner wall of the control box (5), and the controller (10) is electrically connected to the first stepper motor (206) via a wire.

7. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 3 is characterized by: A movable door (4) is movably hinged on the front of the control box (5), and a pulling handle (6) is fixedly connected to the front of the movable door (4).

8. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 1 is characterized by: The outer surface of the mixing drum (1) is fixedly connected to a drainage pipe (11), and the outer surface of the drainage pipe (11) is fixedly connected to a solenoid valve (12).

9. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 1 is characterized by: A water injection port (18) is provided on the upper surface of the top cover (204), a water injection pipe (13) is fixedly connected to the upper surface of the top cover (204), and the bottom end of the water injection pipe (13) is in communication with the water injection port (18).

10. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 4, characterized in that: A fixing seat (14) is fixedly connected to the upper surface of the top cover (204), a second stepping motor (15) is fixedly connected to the inner wall of the fixing seat (14), and the second stepping motor (15) is electrically connected to the controller (10) via a wire.

11. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 8, characterized in that: A bearing (17) is fixedly connected to the inner wall of the mixing drum (1), a rotating shaft (16) is fixedly connected to the inner ring of the bearing (17), and a top end of the rotating shaft (16) is fixedly connected to the output end of the second stepping motor (15).

12. The integrated high-efficiency nitrogen removal device for domestic sewage according to claim 9, characterized in that: Six groups of stirring rods (19) are fixedly connected to the outer surface of the rotating shaft (16), the inner wall of the scraper (303) is fixedly connected to the outer surface of the rotating shaft (16), and the heating wire (305) is electrically connected to the controller (10) via a wire.

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