A multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater

Abstract

The present application relates to a multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater, and relates to the technical field of sewage treatment, which includes a reaction tank, a packing cylinder fixedly arranged in the reaction tank, a biological packing preset in the packing cylinder, a vertically arranged tank body, a feeding assembly arranged on the tank body, a filtering assembly, and a driving assembly arranged on the tank body, wherein a discharge pipe is connected to the reaction tank, and one end of the discharge pipe away from the reaction tank is located above the tank body, and a control valve is installed on the discharge pipe; the top of the tank body is an open structure, and a drain pipe is connected to the bottom of the tank body, and a valve is installed on the drain pipe; the filtering assembly includes a pressure plate coaxially arranged in the tank body, and the pressure plate abuts against the side wall of the tank body; a connecting hole is provided on the top surface of the pressure plate, and the driving assembly is used to move the pressure plate in the vertical direction, and the feeding assembly is used to add a reagent to the tank body. The present application can improve the denitrification efficiency of ammonia nitrogen wastewater.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to a multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater. Background Art

[0002] Ammonia nitrogen wastewater mainly comes from fertilizers, coking, petrochemicals, pharmaceuticals, food, landfills, etc. A large amount of ammonia nitrogen wastewater discharged into the water body not only causes eutrophication of the water body and causes the water body to become black and smelly, but also increases the difficulty and cost of water treatment, and even has a toxic effect on people and organisms. Therefore, when the ammonia nitrogen wastewater is discharged, it needs to be denitrified.

[0003] The denitrification methods in the prior art are to use MAP precipitation method and biological denitrification method. The MAP precipitation method uses the following chemical reaction: Mg2++NH4++PO43-=MgNH4PO4, and adds phosphate and magnesium salts to wastewater containing high concentration of ammonia nitrogen. When [Mg2+][NH4+][PO43-]>2.5×10–13, magnesium ammonium phosphate (MAP) precipitate can be generated, and the ammonia nitrogen in the wastewater can be removed. However, the existing feeding method is to directly pour the phosphate and magnesium salt solutions into the reaction barrel, which is unevenly distributed, resulting in low denitrification efficiency. The biological denitrification method requires that the ammonia nitrogen wastewater is fully in contact with the biological filler for a long time before the ammonia nitrogen wastewater can be denitrified, resulting in low denitrification efficiency. Summary of the invention

[0004] In order to improve the denitrification efficiency of ammonia nitrogen wastewater, the present application provides a multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater.

[0005] The present application provides a multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater, which adopts the following technical solution:

[0006] A multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater comprises a reaction tank, a stuffing cylinder fixedly arranged in the reaction tank, a biological stuffing preset in the stuffing cylinder, a vertically arranged tank body, a feeding assembly arranged on the tank body, a filtering assembly, and a driving assembly arranged on the tank body, wherein a discharge pipe is connected to the reaction tank, an end of the discharge pipe away from the reaction tank is located above the tank body, and a control valve is installed on the discharge pipe; the top of the tank body is an open structure, the bottom of the tank body is connected to a drain pipe, and a valve is installed on the drain pipe; the filtering assembly comprises a pressure plate coaxially arranged in the tank body, the pressure plate abuts against the side wall of the tank body; a connecting hole is opened on the top surface of the pressure plate, the driving assembly is used to move the pressure plate in the vertical direction, and the feeding assembly is used to add reagents to the tank body.

[0007] By adopting the above technical scheme, ammonia nitrogen wastewater is added into the reaction tank, so that the ammonia nitrogen wastewater contacts with the biological filler in the reaction tank, and then the biological filler in the reaction tank performs preliminary denitrification on the ammonia nitrogen wastewater. Then, the control valve is opened to allow the ammonia nitrogen wastewater in the reaction tank to enter the tank body through the discharge pipe, and then the reagent is added into the tank body through the feeding assembly. The driving assembly drives the pressure plate to move back and forth in the vertical direction, so that the pressure plate stirs the liquid in the tank body, and then the reagent and the ammonia nitrogen wastewater are fully mixed, which is beneficial to the secondary denitrification of the ammonia nitrogen wastewater by the reagent, thereby improving the denitrification efficiency of the ammonia nitrogen wastewater.

[0008] Optionally, the driving assembly includes an air intake pipe, an air pump installed on the air intake pipe, a bellows vertically arranged above the pressure plate, a telescopic rod vertically arranged above the pressure plate, and a spring fixedly arranged in the telescopic rod, the air pump is connected to the tank body; one end of the air intake pipe is connected to the bellows, and the other end is connected to the outside; the bellows is fixedly connected to the pressure plate; the fixed end of the telescopic rod is fixedly connected to the pressure plate, and the movable end of the electric telescopic rod is fixedly connected to the top end of the bellows and connected to the tank body; the spring is always in a stretched state.

[0009] By adopting the above technical solution, when the medicine is added to the tank body, the air pump is started, and the air pump inflates the bellows through the air inlet pipe, so that the bellows extends in the vertical direction, and then the bellows drives the pressure plate to move downward in the vertical direction. When the pressure plate moves to the bottom of the tank body, the air pump is turned off. At this time, the spring in a stretched state drives the pressure plate to move vertically upward, so that the pressure plate can move back and forth in the vertical direction.

[0010] Optionally, a filter hole is provided on the top surface of the pressure plate, and a filter net is installed in the filter hole; the filter assembly also includes a mounting plate coaxially arranged in the tank body and located below the pressure plate, a connecting rod fixedly arranged between the mounting plate and the pressure plate, and a distance is left between the mounting plate and the side wall of the tank body; a number of connecting rods are arranged along the circumference of the mounting plate; a scraper assembly is arranged between the pressure plate and the mounting plate, the scraper assembly includes a support box coaxially arranged with the pressure plate, and a connecting box coaxially sleeved on the support box, the support box is fixedly connected to the pressure plate and the mounting plate; the support box is connected to the connecting box and fixedly connected to the connecting box, and the connecting box is made of elastic material; a connecting pipe is vertically inserted on the top surface of the support box, the top end of the connecting pipe is connected to the inside of the bellows, and the bottom end of the connecting pipe is connected to the inside of the support box; an electric valve is installed on the connecting pipe; the connecting hole is located between the filter hole and the support box, and the filter hole is located at the edge of the pressure plate.

[0011] By adopting the above technical scheme, when the pressure plate moves downward, the air pump is started and the electric valve is opened at the same time, so that the external gas enters the connecting box through the air inlet pipe, the bellows and the support box in sequence, and under the action of the gas, the connecting box made of elastic material expands, so that the connecting box is in contact with the bottom surface of the pressure plate, the top surface of the mounting plate and the connecting rod. At this time, the liquid below the pressure plate can only enter the top of the pressure plate through the filter hole, so that the impurities are separated from the liquid, and then the agent can be more fully mixed with the ammonia nitrogen wastewater, avoiding impurities from affecting the mixing of the agent and the ammonia nitrogen wastewater, which is beneficial to the agent to play a role, thereby further improving the denitrification efficiency of the ammonia nitrogen wastewater; and in the process of gradually increasing internal gas in the connecting box, the connecting box can scrape the bottom surface of the pressure plate and the top surface of the mounting plate to avoid impurities sticking to the pressure plate and the mounting plate.

[0012] Optionally, the air inlet pipe is a hose, the bellows is coaxially arranged with the pressure plate, a transmission member is arranged above the bellows, the transmission member is connected to the tank body and to the movable end of the telescopic rod, and the transmission member is used to rotate the bellows around its own axis.

[0013] By adopting the above technical solution, the transmission parts drive the bellows, pressure plate and mounting plate to rotate, so that the bellows, pressure plate and mounting plate further increase the flow direction of the liquid in the tank during the rotation process, so that the reagent and ammonia nitrogen wastewater can be mixed more fully.

[0014] Optionally, the bottom of the tank body is in a constricted shape from top to bottom, and a discharge pipe is connected to the bottom of the tank body, and a valve is also installed on the discharge pipe. By adopting the above technical solution, when the ammonia nitrogen wastewater in the tank body is denitrified, the air pump and the electric valve are started, so that the connecting box and the connecting rod are abutted, and the pressure plate is moved downward to the bottom of the tank body. At this time, the mounting plate abuts against the tank body, so that the impurities are completely separated from the liquid above the mounting plate, and then the valves on the discharge pipe and the discharge pipe are opened, so that the liquid in the tank body flows out from the discharge pipe, and the impurities in the tank body are discharged from the discharge pipe.

[0015] Optionally, a stirring rod is arranged above the pressure plate.

[0016] By adopting the above technical solution, the pressure plate can drive the stirring rod to move during the process of rotation and vertical movement, so that the stirring rod stirs the liquid in the tank body, and the stirring rod is arranged above the pressure plate, so that while the liquid above the pressure plate is stirred by the stirring rod, the impurities below the pressure plate will not be affected by the stirring action of the stirring rod due to the action of the connecting box, so that the impurities can settle to the bottom of the tank body by their own gravity.

[0017] Optionally, a scraper is vertically arranged above the pressure plate, the scraper abuts against the inner wall of the tank body, and is fixedly connected to the pressure plate and the stirring rod.

[0018] By adopting the above technical solution, the scraper can scrape the inner wall of the tank body to prevent the liquid in the tank body from sticking to the inner wall of the tank body, so that the ammonia nitrogen wastewater and the reagent in the tank body can be more fully stirred.

[0019] Optionally, the feeding assembly includes a liquid storage tank, a liquid inlet pipe connected to the liquid storage tank, and a pump installed on the liquid inlet pipe. The liquid storage tank stores medicine, and one end of the liquid inlet pipe away from the liquid storage tank is located at the top opening of the tank body.

[0020] By adopting the above technical solution, when adding medicine into the tank, the pump is started, and the pump transports the medicine in the liquid storage tank into the tank through the liquid inlet pipe, thereby completing the addition of the medicine into the tank.

[0021] 1. In summary, the present application includes at least one of the following beneficial technical effects: by setting a driving component and a filtering component, ammonia nitrogen wastewater is added into the tank body, and then the feeding component and the driving component are started, the feeding component adds the agent into the tank body, and the driving component drives the pressure plate to move back and forth in the vertical direction, so that the pressure plate stirs the liquid in the tank body, thereby fully mixing the agent with the ammonia nitrogen wastewater, which is conducive to the agent to play a role, thereby improving the denitrification efficiency of the ammonia nitrogen wastewater;

[0022] 2. By setting the filtering component, the scraping component and the driving component, when the pressure plate moves downward, the air pump is started and the electric valve is opened at the same time, so that the external gas enters the connecting box through the air inlet pipe, the bellows and the supporting box in sequence, and under the action of the gas, the connecting box made of elastic material expands, so that the connecting box abuts against the bottom surface of the pressure plate, the top surface of the mounting plate and the connecting rod. At this time, the liquid under the pressure plate can only enter the top of the pressure plate through the filter hole, so that the impurities are separated from the liquid, and then the agent can be more fully mixed with the ammonia nitrogen wastewater, avoiding the influence of impurities on the mixing of the agent and the ammonia nitrogen wastewater, which is conducive to the agent to play a role, thereby further improving the denitrification efficiency of the ammonia nitrogen wastewater;

[0023] 3. By setting a stirring rod, the pressure plate can drive the stirring rod to move during the process of rotating and moving in the vertical direction, so that the stirring rod stirs the liquid in the tank body, and the stirring rod is set above the pressure plate, so that while the liquid above the pressure plate is stirred by the stirring rod, the impurities below the pressure plate will not be affected by the stirring action of the stirring rod due to the action of the connecting box, so that the impurities can settle to the bottom of the tank body by their own gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the structure of the hidden reaction pool in the embodiment of the present application;

[0026] Figure 3is a cross-sectional view of the embodiment of the present application, in which the reaction tank and the feeding assembly are hidden;

[0027] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle.

[0028] Explanation of the reference numerals: 1. tank body; 11. bracket; 12. support; 13. discharge pipe; 14. discharge pipe; 141. valve; 2. filter assembly; 21. pressure plate; 211. filter hole; 212. connecting hole; 213. scraper; 214. stirring rod; 22. filter screen; 23. mounting plate; 24. connecting rod; 3. drive assembly; 31. air inlet pipe; 32. air pump; 33. bellows; 34. telescopic rod; 35. spring; 4. transmission part; 5. scraper assembly; 51. support box; 52. connecting box; 53. connecting pipe; 531. electric valve; 6. feeding assembly; 61. liquid storage tank; 62. pump; 63. liquid inlet pipe; 7. reaction tank; 71. liquid outlet pipe; 711. control valve; 72. stuffing cylinder. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] The present application embodiment discloses a multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater. Figure 1 and Figure 2 A multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater includes a reaction tank 7, a stuffing tube 72 fixedly arranged in the reaction tank 7, a biological stuffing preset in the stuffing tube 72, a vertically arranged tank body 1, and a feeding assembly 6 arranged on the tank body 1. The reaction tank 7 is connected with a discharge pipe 71, and one end of the discharge pipe 71 away from the reaction tank 7 is located above the tank body 1. A control valve 711 is installed on the discharge pipe 71; the bottom of the tank body 1 is connected with a drain pipe 14, and a valve 141 is installed on the drain pipe 14. The feeding assembly 6 is used to add reagents to the tank body 1.

[0031] Reference Figure 2 and Figure 3 The top of the tank body 1 is an open structure, and the bottom of the tank body 1 is tapered from top to bottom. A support 12 is vertically arranged on the bottom surface of the tank body 1. Several supports 12 are arranged along the circumference of the tank body 1 and are fixedly connected to the tank body 1; a discharge pipe 13 is connected to the bottom surface of the tank body 1, and a discharge pipe 14 is fixedly arranged on the side wall of the bottom of the tank body 1. The discharge pipe 14 is connected to the inside of the tank body 1; valves 141 are installed on the discharge pipe 13 and the discharge pipe 14.

[0032] Reference Figure 2 and Figure 3A filter assembly 2, a transmission assembly and a drive assembly 3 are arranged on the tank body 1. The filter assembly 2 includes a pressure plate 21 coaxially arranged in the tank body 1, a mounting plate 23 coaxially arranged in the tank body 1 and located below the pressure plate 21, and a connecting rod 24 fixedly arranged between the pressure plate 21 and the mounting plate 23. The pressure plate 21 abuts against the inner wall of the tank body 1, and a distance is left between the mounting plate 23 and the inner wall of the tank body 1; the connecting rod 24 is vertically arranged, and the connecting rod 24 is located at the top edge of the mounting plate 23, and a plurality of connecting rods 24 are circumferentially arranged around the mounting plate 23.

[0033] Reference Figure 3 and Figure 4 A scraping assembly 5 is arranged between the mounting plate 23 and the pressure plate 21, and the scraping assembly 5 includes a supporting box 51 coaxially arranged with the pressure plate 21, and a connecting box 52 coaxially sleeved on the supporting box 51, the supporting box 51 has a circular cross-section, and the supporting box 51 is fixedly connected to the pressure plate 21 and the mounting plate 23; the connecting box 52 has a ring-shaped cross-section, and the connecting box 52 is made of elastic material, and the connecting box 52 is connected to the supporting box 51; a connecting pipe 53 is coaxially inserted on the top surface of the supporting box 51, the top end of the connecting pipe 53 is connected to the inside of the bellows 33, and the bottom end of the connecting pipe 53 is connected to the inside of the supporting box 51; an electric valve 531 is installed on the connecting pipe 53, and the electric valve 531 is located in the supporting box 51.

[0034] Reference Figure 2 and Figure 3 A connecting hole 212 and a filter hole 211 are provided on the top surface of the pressure plate 21. The filter hole 211 is located at the edge of the pressure plate 21, and a plurality of the filter holes 211 are arranged around the pressure plate 21; a filter net 22 is installed in the filter hole 211; a plurality of connecting holes 212 are arranged around the pressure plate 21, and the connecting holes 212 are located between the filter holes 211 and the support box 51; a scraper 213 is vertically arranged on the top surface of the pressure plate 21, and two scrapers 213 are arranged symmetrically on both sides of the pressure plate 21, and the sides of the two scrapers 213 away from each other are both in contact with the inner wall of the tank body 1, and the scraper 213 is fixedly connected to the pressure plate 21; a stirring rod 214 is fixedly arranged on the sides of the two scrapers 213 close to each other, and the stirring rod 214 is arranged horizontally, and a plurality of the stirring rods 214 are arranged along the vertical direction.

[0035] Reference Figure 2 and Figure 3A bracket 11 is horizontally arranged above the tank body 1, and the bracket 11 is fixedly connected to the tank body 1; the transmission member 4 is a motor, the motor is mounted on the bracket 11, and the motor output shaft is coaxially arranged with the tank body 1; the driving assembly 3 includes an air intake pipe 31, an air pump 32 mounted on the air intake pipe 31, a bellows 33 vertically arranged above the pressure plate 21, a telescopic rod 34 vertically arranged above the pressure plate 21, and a spring 35 fixedly arranged in the telescopic rod 34, both ends of the bellows 33 are closed structures, the bellows 33 is coaxially arranged with the tank body 1, and the bottom surface of the bellows 33 is in contact with the pressure plate 21. The plate 21 is fixedly connected, and the top surface of the bellows 33 is fixedly connected to the motor output shaft; the air pump 32 is fixedly connected to the bracket 11; one end of the air inlet pipe 31 is connected to the bellows 33, and the other end is connected to the outside, and the connection between the air inlet pipe 31 and the bellows 33 is located on the top surface of the bellows 33; two telescopic rods 34 are provided, and the two telescopic rods 34 are symmetrically arranged on both sides of the bellows 33, the fixed end of the telescopic rod 34 is fixedly connected to the pressure plate 21, and the movable end of the electric telescopic rod 34 is fixedly connected to the motor output shaft and the top end of the bellows 33; the spring 35 is always in a stretched state.

[0036] Reference Figure 2 and Figure 3 The feeding assembly 6 includes a liquid storage tank 61, a liquid inlet pipe 63 connected to the liquid storage tank 61, and a pump 62 installed on the liquid inlet pipe 63. The liquid storage tank 61 stores medicine, and one end of the liquid inlet pipe 63 away from the liquid storage tank 61 is located at the top opening of the tank body 1; in this embodiment, the medicine is a phosphate and magnesium salt solution.

[0037] The implementation principle of the multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater in the embodiment of the present application is as follows: first, the ammonia nitrogen wastewater is added into the reaction tank 7, so that the ammonia nitrogen wastewater contacts with the biological filler in the reaction tank 7, and then the biological filler in the reaction tank 7 performs preliminary denitrification on the ammonia nitrogen wastewater, then the control valve 711 is opened, so that the ammonia nitrogen wastewater in the reaction tank 7 enters the tank body 1 through the discharge pipe 71, and then the pump 62, the air pump 32 and the motor are started, and the pump 62 transports the reagent in the liquid storage tank 61 through the liquid inlet pipe 63. To the tank body 1; the air pump 32 inflates the bellows 33 through the air inlet pipe 31, so that the bellows 33 extends in the vertical direction, thereby causing the pressure plate 21 and the mounting plate 23 to move vertically downward. When the mounting plate 23 abuts against the tank body 1, the air pump 32 is closed, so that the pressure plate 21 and the mounting plate 23 move vertically upward under the action of the spring 35; and during the vertical movement of the pressure plate 21 and the mounting plate 23, the motor output shaft drives the bellows 33, the pressure plate 21 and the mounting plate 23 to rotate, thereby mixing the liquid in the tank body 1.

[0038] After the ammonia nitrogen wastewater in the tank body 1 is mixed with the agent for a certain period of time, the electric valve 531 is opened while the pressure plate 21 moves downward, so that the external gas enters the connecting box 52 through the air inlet pipe 31, the bellows 33, and the support box 51 in turn, and under the action of the gas, the connecting box 52 made of elastic material expands, so that the connecting box 52 is in contact with the bottom surface of the pressure plate 21, the top surface of the mounting plate 23, and the connecting rod 24. At this time, the liquid below the pressure plate 21 can only enter the top of the pressure plate 21 through the filter hole 211, so that impurities are separated from the liquid, and then the agent can be more fully mixed with the ammonia nitrogen wastewater, avoiding impurities from affecting the mixing of the agent and the ammonia nitrogen wastewater, which is beneficial to the agent to play a role, thereby improving the denitrification efficiency of the ammonia nitrogen wastewater; during the upward movement of the pressure plate 21, the air pump 32 is turned off, so that the connecting box 52 discharges the gas to the outside under the action of its own elastic force.

[0039] When the denitrification of the ammonia nitrogen wastewater in the tank body 1 is completed, start the air pump 32 and the electric valve 531, so that the connecting box 52 abuts against the connecting rod 24, and the pressure plate 21 moves downward to the bottom of the tank body 1. At this time, the mounting plate 23 abuts against the tank body 1, so that the impurities are completely separated from the liquid above the mounting plate 23, and then open the valve 141 on the drain pipe 14 and the discharge pipe 13, so that the liquid in the tank body 1 flows out from the drain pipe 14, and the impurities in the tank body 1 are discharged from the discharge pipe 13.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater, characterized in that: The invention comprises a reaction pool (7), a filling tube (72) fixedly arranged in the reaction pool (7), a biological filling material preset in the filling tube (72), a vertically arranged tank body (1), a feeding assembly (6) arranged on the tank body (1), a filtering assembly (2), and a driving assembly (3) arranged on the tank body (1), wherein a discharge pipe (71) is connected to the reaction pool, an end of the discharge pipe (71) away from the reaction pool (7) is located above the tank body (1), and a control valve (71) is installed on the discharge pipe (71). 11), the top of the tank body (1) is an open structure, the bottom of the tank body (1) is connected to a drain pipe (14), and a valve (141) is installed on the drain pipe (14); the filter assembly (2) comprises a pressure plate (21) coaxially arranged in the tank body (1), the pressure plate (21) abuts against the side wall of the tank body (1); a communication hole (212) is opened on the top surface of the pressure plate (21), the driving assembly (3) is used to move the pressure plate (21) in a vertical direction, and the feeding assembly (6) is used to add medicine into the tank body (1); The driving assembly (3) comprises an air intake pipe (31), an air pump (32) mounted on the air intake pipe (31), a bellows (33) vertically arranged above the pressure plate (21), a telescopic rod (34) vertically arranged above the pressure plate (21), and a spring (35) fixedly arranged in the telescopic rod (34); the air pump (32) is connected to the tank body (1); one end of the air intake pipe (31) is connected to the bellows (33) and the other end is connected to the outside; the bellows (33) is fixedly connected to the pressure plate (21); the fixed end of the telescopic rod (34) is fixedly connected to the pressure plate (21); the movable end of the electric telescopic rod (34) is fixedly connected to the top end of the bellows (33) and is connected to the tank body (1); the spring (35) is always in a stretched state; The top surface of the pressure plate (21) is provided with a filter hole (211), and a filter net (22) is installed in the filter hole (211); the filter assembly (2) further comprises a mounting plate (23) coaxially arranged in the tank body (1) and located below the pressure plate (21), and a connecting rod (24) fixedly arranged between the mounting plate (23) and the pressure plate (21), and a distance is left between the mounting plate (23) and the side wall of the tank body (1); a plurality of connecting rods (24) are arranged along the circumference of the mounting plate (23); a scraping assembly (5) is arranged between the pressure plate (21) and the mounting plate (23), and the scraping assembly (5) comprises a support box (51) coaxially arranged with the pressure plate (21), and a connecting rod (24) coaxially sleeved on the support box (21); The support box (51) is fixedly connected to the pressure plate (21) and the mounting plate (23); the support box (51) is communicated with the connection box (52) and is fixedly connected to the connection box (52); the connection box (52) is made of elastic material; a connection pipe (53) is vertically inserted on the top surface of the support box (51); the top end of the connection pipe (53) is communicated with the inside of the bellows (33); the bottom end of the connection pipe (53) is communicated with the inside of the support box (51); an electric valve (531) is installed on the connection pipe (53); the communication hole (212) is located between the filter hole (211) and the support box (51); the filter hole (211) is located at the edge of the pressure plate (21).

2. A multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater according to claim 1, characterized in that: The air inlet pipe (31) is a hose, the bellows (33) is coaxially arranged with the pressure plate (21), a transmission member (4) is arranged above the bellows (33), the transmission member (4) is connected to the tank body (1) and to the movable end of the telescopic rod (34), and the transmission member (4) is used to rotate the bellows (33) around its own axis.

3. A multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater according to claim 1, characterized in that: The bottom of the tank body (1) is in a tapered shape from top to bottom, and a discharge pipe (13) is connected to the bottom surface of the tank body (1), and a valve (141) is also installed on the discharge pipe (13).

4. A multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater according to claim 2, characterized in that: A stirring rod (214) is arranged above the pressure plate (21).

5. A multifunctional denitrification device for treating high-concentration ammonia nitrogen wastewater according to claim 4, characterized in that: A scraper (213) is vertically arranged above the pressure plate (21), the scraper (213) abuts against the inner wall of the tank body (1), and is fixedly connected to the pressure plate (21) and the stirring rod (214).

6. The multifunctional denitrification equipment for treating high-concentration ammonia nitrogen wastewater according to claim 1, characterized in that: The feeding assembly (6) comprises a liquid storage tank (61), a liquid inlet pipe (63) connected to the liquid storage tank (61), and a pump (62) mounted on the liquid inlet pipe (63); the liquid storage tank (61) stores the medicine, and one end of the liquid inlet pipe (63) away from the liquid storage tank (61) is located at the top opening of the tank body (1).

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