Integrated treatment device for high-ammonia-nitrogen desulfurization wastewater

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a high ammonia nitrogen desulfurization wastewater integrated treatment device, which comprises a tank body and a dynamic driving part, the dynamic driving part is in transmission connection with a composite motion frame capable of synchronously reciprocating left and right and up and down, and a gas inlet shaft capable of periodically reciprocating rotation and circularly changing speed; the reciprocating motion stroke and the moving frequency of the composite motion frame periodically and cyclically change, the air inlet shaft is rotationally sleeved with a rotating shaft, the rotating shaft and the air inlet shaft coaxially and reversely rotate, two symmetrically-arranged air stripping parts are arranged on the rotating shaft, and each air stripping part comprises an air stripping frame installed on the rotating shaft. A fixed gear ring is fixedly installed on the air stripping frame, and a rotary air stripping frame is rotationally installed on the air stripping frame. A disturbance blind area is eliminated through multiple motion superposition of the air stripping part, ammonia nitrogen concentration gradient distribution in wastewater is dynamically adapted, finally, the ammonia nitrogen mass transfer efficiency is improved compared with a traditional device, and the core problem of insufficient gas-liquid contact is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more particularly to an integrated treatment device for high-ammonia nitrogen desulfurization wastewater. Background Art

[0002] The removal of ammonia nitrogen in wastewater is a difficult problem. Among the traditional methods, biological denitrification and breakpoint chlorination are only suitable for treating low-concentration ammonia nitrogen wastewater. The ion exchange method requires resin regeneration, and the high-ammonia nitrogen wastewater generated by the regeneration liquid needs further treatment. The chemical precipitation method has high treatment cost and low efficiency. The catalytic wet oxidation method requires harsh reaction conditions and is not easy to control. The electrodialysis method requires electric energy to drive and has high energy consumption. The ammonia evaporation or stripping technology has low treatment efficiency and is prone to secondary pollution. In the prior art, the patent document with publication number CN210495816U discloses an integrated tower for ammonia nitrogen removal from desulfurization wastewater. The above device combines the ammonia nitrogen stripping and ammonia nitrogen absorption of the desulfurization wastewater in the same tower. The gas after the desulfurization wastewater is stripped of ammonia nitrogen directly enters the absorption section after demisting, which reduces the footprint of the device. However, the above device has the following technical problems when used:

[0003] 1. The movement trajectory of the stripping and stripping components is single, the disturbance is insufficient, the scaling risk is high, and the maintenance cost is high;

[0004] 2. Ammonia resources are not recovered, which may cause secondary pollution;

[0005] 3. The design of the stripping nozzle is unreasonable and the gas-liquid contact efficiency is low.

[0006] Based on this, the present invention provides an integrated treatment device for high-ammonia nitrogen desulfurization wastewater to solve the technical problems raised in the above background technology. Summary of the Invention

[0007] In order to overcome the shortcomings of the existing technology, the present invention provides an integrated treatment device for high-ammonia nitrogen desulfurization wastewater. The multiple movements of the stripping and air stripping components in the present invention are superimposed to eliminate the disturbance blind spot, dynamically adapt to the ammonia nitrogen concentration gradient distribution in the wastewater, and ultimately improve the ammonia nitrogen mass transfer efficiency compared with traditional devices, solving the core problem of insufficient gas-liquid contact.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: an integrated treatment device for high-ammonia nitrogen desulfurization wastewater, comprising a tank body and a dynamic drive component, wherein the dynamic drive component is transmission-connected to a composite motion frame capable of synchronous left-right and up-and-down reciprocating movement and an intake shaft capable of periodic reciprocating rotation and cyclically changing speeds, wherein the reciprocating movement stroke and movement frequency of the composite motion frame are periodically cyclically changed, a rotating shaft is rotatably sleeved on the intake shaft, the rotating shaft rotates coaxially with the intake shaft in opposite directions, and two symmetrically arranged stripping and air stripping components are provided on the rotating shaft;

[0009] The stripping air stripping component includes a stripping frame mounted on a rotating shaft, a fixed gear ring is fixedly mounted on the stripping frame and a rotating air stripping frame is rotatably mounted on the stripping frame, four air guide cyclones driven by the fixed gear ring are rotatably mounted on the rotating air stripping frame, and the end of each air guide cyclone is connected to a nozzle arranged at a 45° angle through a corrugated metal tube, a reciprocating screw that can rotate back and forth periodically is rotatably mounted on the axis position of the rotating air stripping frame, the reciprocating screw and the rotating air stripping frame are both driven by the air intake shaft and the rotation speeds of the two rotating air stripping frames are different, a guide frame is transmission-mounted on the reciprocating screw, an extension bracket is rotatably mounted on the guide bracket, each of the nozzles is rotatably connected to the extension bracket, an air guide component for feeding exhaust gas to the nozzle is provided in the air intake shaft, a recovery pipe is connected to the top of the tank body, and the other end of the recovery pipe is connected to a condenser.

[0010] As a preferred technical solution of the present invention, the dynamic drive component includes a fixed frame and a reciprocating frame slidably connected to the fixed frame, a servo motor is installed on the fixed frame, a large square shaft, a small square shaft and a first motion screw are rotatably installed on the fixed frame, the output shaft end of the servo motor is fixedly connected to the large square shaft, a hollow shaft and a large circular shaft are rotatably installed on the reciprocating frame, the hollow shaft is driven by the large square shaft, and the small square shaft is driven by the large circular shaft, an intermittent large gear and an intermittent small gear are respectively installed on the hollow shaft, and two symmetrically arranged non-transmission sections are provided on the hollow shaft corresponding to the position between the intermittent large gear and the intermittent small gear. Two speed-changing gears are installed on the large circular shaft, and the two speed-changing gears are respectively meshed with the intermittent large gear and the intermittent small gear. A synchronous toothed belt is connected to the small square shaft for transmission. An elastic tensioning belt is installed on the large circular shaft for transmission. The air intake shaft is connected to the elastic tensioning belt for transmission. A second motion screw driven by an elastic tensioning belt is rotatably installed on the reciprocating frame, and the second motion screw is connected to the compound motion frame for transmission. A first reset direction-changing torsion spring is provided at the rotation connection between the first motion screw and the fixed frame, the rotation connection between the second motion screw and the reciprocating frame, and the rotation connection between the air intake shaft and the compound motion frame.

[0011] As a preferred technical solution of the present invention, the interior of the hollow shaft is fixed with a first square groove with openings at both ends and slidingly connected to the large square shaft, the interior of the large circular shaft is fixed with a second square groove with openings at both ends and slidingly connected to the small square shaft, the cross-sections of the first square groove, the second square groove, the large square shaft and the small square shaft are all regular polygons, a small circular shaft is rotatably mounted on the reciprocating frame, the small circular shaft is transmission-connected to an elastic tensioning belt, the small circular shaft and the second moving screw are both equipped with a first bevel gear, and the two first bevel gears are engaged with each other.

[0012] As a preferred technical solution of the present invention, the center angle corresponding to the intermittent large gear is 180°, the center angle corresponding to the intermittent small gear is 90°, the center angles corresponding to the two non-transmission sections are both 45°, the radius of the intermittent large gear and the intermittent small gear are the same, the radius of the two speed-changing gears are the same, and the radius of the intermittent large gear is 8 to 10 times the radius of the speed-changing gear.

[0013] As a preferred technical solution of the present invention, a rotating shaft is rotatably installed on the compound motion frame, a rotating bevel gear is installed on the rotating shaft, and outer bevel gears are installed on the air intake shaft and the rotating shaft. The two outer bevel gears are transmission-connected with the rotating bevel gear, and the two outer bevel gears are respectively arranged on both sides of the rotating bevel gear. A corrugated sealing cover is rotatably sleeved on the rotating shaft, and the corrugated sealing cover is fixedly connected to the tank body.

[0014] As a preferred technical solution of the present invention, a differential bevel gear is installed on each of the two rotating air lift frames, and the radii of the two differential bevel gears are different. Two upper bevel gears are installed on the intake shaft, and the two upper bevel gears are respectively connected to the two differential bevel gears for transmission. A rear bevel gear is installed at the tail end of the reciprocating screw, and a lower bevel gear connected to the rear bevel gear for transmission is installed on the intake shaft. A second reset torsion spring is fixedly provided at the rotating connection between the reciprocating screw and the rotating air lift frame.

[0015] As a preferred technical solution of the present invention, the air guide component includes an air inlet pipe installed on a fixed frame and a distribution air flow duct opened in the air inlet shaft, the air outlet port of the air inlet pipe is connected to the distribution air flow duct through a corrugated connecting pipe, an air separation cavity is opened on the rotating shaft, and the air separation cavity is rotationally connected to the distribution air flow duct, and an air guide ring connected to the air separation cavity is opened inside each of the rotating air lift frames, a driven rotating ring is rotatably installed on the air guide ring, and each of the air guide cyclones is rotationally connected to the driven rotating ring through a rotating joint.

[0016] As a preferred technical solution of the present invention, a heating jacket and a microcontroller are installed on the tank body, a vibration motor is installed on the heating jacket, a set of legs are installed at the lower part of the tank body, a drain valve is installed at the bottom of the tank body, a nano anti-stick coating is fixedly provided on the inner wall of the tank body, and a wastewater inlet pipe is installed on the top of the tank body.

[0017] As a preferred technical solution of the present invention, the axes of the air inlet shaft and the first moving screw are both perpendicular to the axis of the tank body, and the axes of the rotating air lift rack and the second moving screw are both perpendicular to the axis of the tank body.

[0018] As a preferred technical solution of the present invention, a driven gear that is transmission-connected to the fixed gear ring is fixedly mounted on the air guide cyclone.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention realizes synchronous left-right and up-and-down reciprocating movement of the composite motion frame through the innovative design of the dynamic driving component, and cooperates with the periodic reciprocating rotation and cyclic speed change of the air inlet shaft, so that the air stripping and stripping component forms a three-dimensional composite motion trajectory of "rotation, translation, and lifting" in the tank body. At the same time, the air guide cyclone in the air stripping and stripping component is driven by the fixed gear ring to realize self-rotation, and the 45° inclined nozzle forms a spiral injection trajectory with its "revolution and rotation". The bubble path is extended to 1.4 times, and the gas-liquid contact area is expanded compared with the traditional linear injection. The superposition of multiple motions eliminates the disturbance blind spot, and dynamically adapts to the ammonia nitrogen concentration gradient distribution in the wastewater, ultimately improving the ammonia nitrogen mass transfer efficiency compared with the traditional device, solving the core problem of insufficient gas-liquid contact.

[0021] 2. The present invention uses a recovery pipe connected to the top of the tank body to work in conjunction with the condenser to introduce the ammonia-containing gas escaping during the stripping process into the condenser for cooling, so that water vapor and ammonia molecules are condensed into ammonia water for direct recovery. This design realizes the closed-loop utilization of ammonia resources, avoids the environmental pollution and resource loss caused by the unorganized emission of ammonia in traditional processes, and at the same time eliminates the need for subsequent additional equipment such as an ammonia absorption tower, reducing system complexity and operating costs.

[0022] 3. The present invention achieves long-term stable operation through a triple anti-scaling mechanism: the periodic variable stroke and variable frequency movement of the composite motion frame, combined with the variable speed rotation of the air inlet shaft, forms complex turbulence in the tank body, and the tank wall and the surface of the stripping and air stripping components are flushed by the fluid shear force. The periodic micro-vibration of the vibration motor on the heating jacket, combined with the nano-anti-stick coating on the inner wall of the tank, inhibits the initial adhesion of suspended matter. The multi-dimensional movement of the stripping and air stripping components prevents the same area from being in a "low-disturbance state" for a long time. The synergistic effect of the three mechanisms effectively extends the continuous trouble-free period of the device and significantly reduces operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of the tank body and the first moving screw rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0026] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at B in the middle;

[0027] Figure 5 Schematic diagram of the structure of the servo motor and the corrugated metal tube of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the blow-off rack and the rotary air stripping rack of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the driven rotating ring of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the reciprocating frame and intermittent pinion of the present invention.

[0031] In the figure: 1. Tank; 2. Compound motion frame; 3. Inlet shaft; 4. Rotary shaft; 5. Blow-off frame; 6. Fixed gear ring; 7. Rotary air stripping frame; 8. Air guide cyclone; 9. Corrugated metal pipe; 10. Nozzle; 11. Reciprocating screw; 12. Extension bracket; 13. Recovery pipe; 14. Condenser; 15. Fixed frame; 16. Reciprocating frame; 17. Servo motor; 18. Large square shaft; 19. Small square shaft; 20. First motion screw; 21. Hollow shaft; 22. Large circular shaft; 23. Intermittent large gear; 24. Intermittent 1. Pinion; 25. Speed-changing gear; 26. Elastic tensioning belt; 27. Second motion screw; 28. First reset direction-changing torsion spring; 29. Small circular shaft; 30. Intermediate shaft; 31. Differential bevel gear; 32. Upper bevel gear; 33. Second reset torsion spring; 34. Inlet pipe; 35. Distribution air duct; 36. Air distribution cavity; 37. Driven swivel; 38. Heating jacket; 39. Microcontroller; 40. Vibration motor; 41. Driven gear; 42. Wastewater inlet pipe; 43. Corrugated sealing cover; 44. Guide frame. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 8 As shown, the present invention provides an integrated treatment device for high-ammonia nitrogen desulfurization wastewater, comprising a tank body 1 and a dynamic drive component;

[0034] The tank body 1 is provided with a heating jacket 38 and a microcontroller 39. A vibration motor 40 is provided on the heating jacket 38. A set of legs is provided at the bottom of the tank body 1. A drain valve is provided at the bottom of the tank body 1. A nano-anti-stick coating is fixedly provided on the inner wall of the tank body 1. A wastewater inlet pipe 42 is provided at the top of the tank body 1.

[0035] The high-ammonia nitrogen desulfurization wastewater in the tank body 1 is heated by the heating jacket 38 until the temperature of the wastewater reaches 40°C-60°C. By increasing the temperature to accelerate the volatilization of ammonia nitrogen, the microcontroller 39 can accurately control the heating temperature and time to ensure the stripping efficiency while avoiding excessive energy consumption. The vibration motor 40 periodically vibrates the heating jacket 38 to prevent scaling of the wastewater due to local overheating. The nano-anti-stick coating on the inner wall of the tank body 1 further reduces the adhesion of suspended matter and maintains the long-term stable operation of the equipment. The legs support the tank body 1 to maintain stability, and the drain valve facilitates the regular discharge of treated sediment to achieve solid-liquid separation.

[0036] The bottom drain valve is convenient for regular discharge of settled sludge and insoluble salts;

[0037] In the workflow, after the wastewater enters the tank 1, the heating jacket 38 is first heated to the set range, and the vibration motor 40 is simultaneously started to prevent sticking. After the treatment is completed, the slag is quickly discharged through the drain valve. The whole process realizes the integrated and efficient connection of "heating, reaction, anti-sticking, and slag discharge", which significantly reduces maintenance costs.

[0038] The dynamic drive component is connected to a composite motion frame 2 that can synchronously move left and right and up and down, and an intake shaft 3 that can periodically rotate back and forth and cyclically change speed;

[0039] The dynamic drive component includes a fixed frame 15 and a reciprocating frame 16 slidably connected to the fixed frame 15, and a servo motor 17 is installed on the fixed frame 15;

[0040] A large square shaft 18, a small square shaft 19 and a first moving screw 20 are rotatably mounted on the fixed frame 15, and the output shaft end of the servo motor 17 is fixedly connected to the large square shaft 18;

[0041] The reciprocating frame 16 is rotatably mounted with a hollow shaft 21 and a large circular shaft 22. The hollow shaft 21 is driven by the large square shaft 18. A first square groove with openings at both ends and slidingly connected to the large square shaft 18 is fixed inside the hollow shaft 21.

[0042] The small square shaft 19 is driven by the large circular shaft 22. The large circular shaft 22 has a second square groove fixedly opened at both ends and slidably connected to the small square shaft 19. The cross-sections of the first square groove, the second square groove, the large square shaft 18 and the small square shaft 19 are all regular polygons.

[0043] An intermittent large gear 23 and an intermittent small gear 24 are mounted on the hollow shaft 21. Two symmetrically arranged non-transmission sections are provided on the hollow shaft 21 at positions corresponding to the positions between the intermittent large gear 23 and the intermittent small gear 24.

[0044] Two speed-changing gears 25 are mounted on the large circular shaft 22, and the two speed-changing gears 25 are respectively meshed with the intermittent large gear 23 and the intermittent small gear 24;

[0045] The central angle corresponding to the intermittent large gear 23 is 180°, the central angle corresponding to the intermittent small gear 24 is 90°, and the central angles corresponding to the two non-transmission sections are both 45°. The radius of the intermittent large gear 23 and the intermittent small gear 24 is the same, and the radius of the two speed-changing gears 25 is the same. The radius of the intermittent large gear 23 is 9 times the radius of the speed-changing gear 25;

[0046] The 45° tilt of the nozzle 10 is the core design of the stripping and air stripping component: it forms a spiral spray trajectory in coordination with the "revolution and rotation" compound motion of the air-guiding cyclone 8. Compared with the straight trajectory of traditional vertical or horizontal nozzles, the gas-liquid contact area is expanded;

[0047] Oblique injection extends the bubble path by 1.4 times, improving the ammonia nitrogen mass transfer efficiency;

[0048] At the same time, the movement of the composite motion frame 2 is superimposed to form multi-dimensional turbulence, which strengthens the migration of ammonia nitrogen. Its irreplaceable nature lies in: the vertical nozzle 10 easily causes bubbles to float up or concentrate in the center along a short path, and the horizontal nozzle cannot cover deep wastewater. The 45° angle is the optimal angle for balancing radial coverage, axial penetration and residence time, and is the key to improving treatment efficiency.

[0049] A synchronous toothed belt is connected between the small square shaft 19 and the first moving screw rod 20, an elastic tensioning belt 26 is installed on the large circular shaft 22, and the air intake shaft 3 is connected to the elastic tensioning belt 26;

[0050] The elastic tensioning belt 26 is made of rubber and can be driven to retract;

[0051] A second motion screw rod 27 driven by an elastic tension belt 26 is rotatably mounted on the reciprocating frame 16, and the second motion screw rod 27 is transmission-connected to the composite motion frame 2;

[0052] A small circular shaft 29 is rotatably mounted on the reciprocating frame 16, and the small circular shaft 29 is transmission-connected to the elastic tensioning belt 26. A first bevel gear is mounted on the small circular shaft 29 and the second moving screw rod 27, and the two first bevel gears are meshed with each other.

[0053] A first return and direction-changing torsion spring 28 is provided at the rotation connection between the first moving screw rod 20 and the fixed frame 15 , the rotation connection between the second moving screw rod 27 and the reciprocating frame 16 , and the rotation connection between the intake shaft 3 and the composite moving frame 2 .

[0054] The servo motor 17 drives the large square shaft 18 to rotate, and drives the hollow shaft 21 to rotate synchronously through the first square groove in the hollow shaft 21. The intermittent large gear 23 and the intermittent small gear 24 on the hollow shaft 21 alternately engage with the speed-changing gear 25 on the large circular shaft 22. When the intermittent large gear 23 engages, the speed-changing gear 25 accelerates the rotation of the large circular shaft 22, driving the elastic tensioning belt 26 to drive the air inlet shaft 3 at high speed, thereby realizing the rapid rotation of the degassing and air stripping component.

[0055] When the intermittent pinion 24 is engaged, the transmission ratio is reduced, the speed of the intake shaft 3 decreases, and the idling interval of the non-transmission section is combined to make the intake shaft 3 form a periodic speed change rotation of "high speed-low speed-pause". At the same time, the large square shaft 18 drives the first motion screw 20 to rotate through the small square shaft 19 and the synchronous toothed belt. Combined with the second motion screw 27 on the reciprocating frame 16, under the action of the first reset and direction-changing torsion spring 28, the compound motion frame 2 produces a compound motion of left and right translation and up and down lifting, and the stroke and frequency change periodically with the gear meshing state.

[0056] In traditional high-ammonia nitrogen desulfurization wastewater treatment equipment, the air stripping or stirring components often adopt a fixed direction, such as a single motion trajectory of horizontal rotation or vertical lifting. This results in a dead zone in the wastewater flow field with "strong disturbance in the center and weak disturbance at the edge". The ammonia nitrogen molecules do not fully contact with the stripping gas, limiting the stripping efficiency.

[0057] In this design, the compound motion frame 2 synchronously realizes multi-dimensional reciprocating movement of "left and right and up and down", and cooperates with the "rotation and speed change" compound action of the air intake shaft 3, so that the motion trajectory of the air stripping stripping component covers the entire radial and axial area of the tank body 1, eliminating the disturbance blind spot of the traditional device. The stroke and frequency of the compound motion frame 2 change periodically, and cooperate with the cyclic speed change and direction change of the air intake shaft 3, which can dynamically adapt to the gradient distribution of ammonia nitrogen concentration in the wastewater. The frequency of gas-liquid collision is increased by the high-frequency movement and high-speed rotation of the rotating air stripping frame 7, and the gas coverage range is expanded by the large-stroke, low-frequency movement and low-speed rotation of the rotating air stripping frame 7. This dynamic adjustment mechanism increases the gas-liquid contact area compared with the traditional fixed parameter device. Due to the fixed motion trajectory of the traditional device, suspended matter in the wastewater is easily deposited and scaled in the "low disturbance area", requiring frequent shutdown and cleaning. In this design, the periodic variable stroke and variable frequency movement of the compound motion frame 2, combined with the variable speed rotation of the air intake shaft 3, can form complex turbulence in the tank body 1, and flush the tank wall and the surface of the air stripping stripping component through the shear force of the fluid, effectively suppressing the deposition of suspended matter;

[0058] At the same time, the periodic change of the motion trajectory prevents the same area from being in a "low disturbance state" for a long time, further reducing the risk of scaling;

[0059] The reciprocating stroke and frequency of the composite motion frame 2 change periodically. A swivel 4 is rotatably sleeved on the intake shaft 3. The swivel 4 rotates coaxially with the intake shaft 3 in opposite directions.

[0060] A rotating shaft 30 is rotatably mounted on the composite motion frame 2, and a rotating bevel gear is mounted on the rotating shaft 30. External bevel gears are mounted on both the intake shaft 3 and the rotating shaft 4. Both external bevel gears are transmission-connected to the rotating bevel gear. The two external bevel gears are respectively arranged on both sides of the rotating bevel gear. A corrugated sealing cover 43 is rotatably sleeved on the rotating shaft 4, and the corrugated sealing cover 43 is fixedly connected to the tank body 1.

[0061] The air inlet shaft 3 engages with the transfer bevel gear through the outer bevel gear, driving the rotary shaft 4 to rotate coaxially and in the opposite direction, forming relative motion. The reciprocating movement of the compound motion frame 2 drives the air inlet shaft 3 to translate synchronously, causing the rotary shaft 4 to move horizontally while rotating. The air stripping and stripping components then form a three-dimensional composite motion trajectory of "rotation, translation, and lifting" in the tank body 1. The corrugated sealing cover 43 ensures the sealing of the transmission components. This design enables the nozzle 10 to dynamically adjust its position in three-dimensional space, avoiding the blind spot of fixed-point air stripping. At the same time, the relative rotation enhances the gas-liquid shear force, promoting more efficient escape of ammonia nitrogen from the wastewater. Compared with traditional static air stripping equipment, the treatment uniformity and efficiency are significantly improved.

[0062] Two symmetrically arranged blowing and stripping components are provided on the rotating shaft 4;

[0063] The stripping and air stripping components include a stripping frame 5 mounted on a rotary shaft 4, a fixed gear ring 6 fixedly mounted on the stripping frame 5 and a rotating air stripping frame 7 rotatably mounted on the rotating air stripping frame 7, and four air guide cyclones 8 driven by the fixed gear ring 6 rotatably mounted on the rotating air stripping frame 7;

[0064] A driven gear 41 is fixedly mounted on the air guide cyclone 8 and is in transmission connection with the fixed gear ring 6;

[0065] The end of each air guide cyclone 8 is connected to a nozzle 10 inclined at 45 degrees through a corrugated metal tube 9;

[0066] A reciprocating screw 11 that can rotate back and forth periodically is rotatably installed at the axis position of the rotating air stripping frame 7. The reciprocating screw 11 and the rotating air stripping frame 7 are both driven by the air inlet shaft 3, and the rotation speeds of the two rotating air stripping frames 7 are different. A guide frame 44 is installed on the reciprocating screw 11, and an extension bracket 12 is rotatably installed on the guide bracket 44. Each nozzle 10 is rotatably connected to the extension bracket 12. An air guide component for feeding exhaust gas to the nozzle 10 is provided in the air inlet shaft 3. The top of the tank body 1 is connected to a recovery pipe 13, and the other end of the recovery pipe 13 is connected to a condenser 14.

[0067] During the stripping process, free ammonia in the wastewater rises to the top of the tank 1 with the air flow after being resolved at the gas-liquid interface, and enters the condenser 14 through the recovery pipe 13. The condenser 14 condenses the water vapor and ammonia molecules in the ammonia-containing gas by cooling. The ammonia dissolves in the condensate to form ammonia water, which can be directly recycled as industrial ammonia water, realizing the recycling of ammonia resources and avoiding the waste of resources caused by the direct discharge of ammonia gas in the traditional stripping process.

[0068] A differential bevel gear 31 is installed on each of the two rotating air lift frames 7. The radii of the two differential bevel gears 31 are different. Two upper bevel gears 32 are installed on the intake shaft 3. The two upper bevel gears 32 are respectively connected to the two differential bevel gears 31. A rear bevel gear is installed at the tail end of the reciprocating screw 11. A lower bevel gear connected to the rear bevel gear is installed on the intake shaft 3. A second return torsion spring 33 is fixedly provided at the rotating connection between the reciprocating screw 11 and the rotating air lift frame 7.

[0069] The air guide component includes an air inlet pipe 34 installed on the fixed frame 15 and a distribution air duct 35 opened in the air inlet shaft 3. The air outlet port of the air inlet pipe 34 is connected to the distribution air duct 35 through a corrugated connecting pipe. The rotary shaft 4 is provided with an air separation cavity 36, which is rotatably connected to the distribution air duct 35. Each rotary air lift frame 7 is internally provided with an air guide ring connected to the air separation cavity 36. A driven swivel 37 is rotatably installed on the air guide ring. Each air guide cyclone 8 is rotatably connected to the driven swivel 37 through a rotary joint.

[0070] When the swivel 4 drives the blow-off rack 5 to rotate, the fixed gear ring 6 drives the driven gear 41 on the air guide cyclone 8 to rotate, causing the air guide cyclone 8 to rotate around its own axis. At the same time, the 45° inclined nozzle 10 connected to the corrugated metal tube 9 sprays air or high-temperature steam. The air or high-temperature steam is evenly distributed to each nozzle through the distribution flow channel 35 in the air inlet shaft 3, the air cavity 36 of the swivel 4 and the air guide ring channel, forming a spiral rising airflow. The reciprocating screw 11 is driven by the air inlet shaft 3 through the rear bevel gear and the lower bevel gear to rotate periodically, driving the extension bracket 12 to move along the axial direction of the screw. The nozzle 10 and the rotating air stripping rack 7 are moved to change the relative distance between the nozzle 10 and the rotating air stripping rack 7 and the blowing position of the nozzle 10 in the tank body 1. The two rotating air stripping racks 7 rotate at different speeds due to the transmission of the differential bevel gear 31, forming a differential stirring effect. The above design causes the air flow to simultaneously produce rotational shear, angle change and differential disturbance in the tank body 1. Under these multiple effects, the surface tension of the wastewater is broken, the gas-liquid contact area and the renewal frequency are increased, and the air stripping separation effect of ammonia and nitrogen is enhanced. Compared with the traditional fixed-angle stripping, it can adapt to the dynamic treatment needs of wastewater with different concentrations, improve the denitrification efficiency and reduce energy consumption;

[0071] The air intake pipe 34 is connected to the air distribution channel 35 of the air intake shaft 3 through a corrugated connecting pipe, allowing the air intake shaft 3 to maintain a flexible connection during translation to avoid damage to the pipeline caused by a rigid connection. The air distribution chamber 36 cooperates with the air guide ring channel and the driven swivel 37 to ensure that the airflow is stably delivered to the air guide cyclone 8 during rotation. The differential bevel gear 31 enables the two rotating air lift racks 7 to rotate at different speeds, forming a "fast and slow" dual-zone stirring to accelerate the convection of wastewater; the second reset torsion spring 33 provides a reset force when the reciprocating screw 11 reverses, ensuring the stability of the nozzle angle adjustment. The system maximizes the waste gas utilization efficiency through precise airflow distribution and differential transmission design. At the same time, through dynamic angle adjustment and dual-speed stirring, it enhances the adaptability to high-ammonia nitrogen wastewater and can shorten the processing time compared with single-speed equipment.

[0072] The axes of the air inlet shaft 3 and the first moving screw 20 are both perpendicular to the axis of the tank body 1 , and the axes of the rotating air lift frame 7 and the second moving screw 27 are both perpendicular to the axis of the tank body 1 .

[0073] The working principle and use process of the present invention:

[0074] After the high-ammonia nitrogen desulfurization wastewater is injected into the tank body 1, the microcontroller 39 starts the heating jacket 38 to heat the wastewater to 40°C-60°C, and the vibration motor 40 synchronizes micro-vibration with the nano-anti-stick coating to prevent the initial deposition of suspended matter. Then the dynamic drive system is started, and the servo motor 17 drives the large square shaft 18 to rotate. The intermittent large gear 23 and the intermittent small gear 24 on the hollow shaft 21 are periodically engaged with the speed change gear 25 of the large circular shaft 22, so that the large circular shaft 22 is cyclically shifted from "high speed, low speed, and stop". The power is transmitted to the intake shaft 3 and the second motion screw 27 through the elastic tensioning belt 26. At the same time, the small square shaft 19 drives the first motion screw 20 through the synchronous toothed belt, and finally the composite motion frame 2 realizes "left and right and up and down" synchronous reciprocating movement;

[0075] When the stripping air stripping component is working, the air inlet shaft 3 rotates and drives the rotating shaft 4 to rotate coaxially in the opposite direction through the meshing of the outer bevel gear and the intermediate bevel gear, so that the stripping air stripping component forms a composite trajectory of "active rotation and passive movement". When the rotating air stripping frame 7 rotates, the air guide cyclone 8 rotates due to the meshing of the driven gear 41 and the fixed gear ring 6. Its 45° inclined nozzle 10 "revolves and rotates" synchronously. At the same time, the double rotating air stripping frame 7 realizes the rotation speed difference due to the differential bevel gear 31. The reciprocating screw 11 is driven by the rear bevel gear and the lower bevel gear and cooperates with the second reset torsion spring 33 to periodically rotate forward and reverse. The nozzle angle is dynamically adjusted by the extension bracket 12. The air guide components synchronously transport steam, which is stably distributed to each nozzle through the air inlet pipe 34, the air distribution channel 35, the air distribution cavity 36, the air guide ring and the driven rotating ring 37. The nozzle 10 sprays gas with a composite trajectory of "revolution, rotation, and position adjustment" to form a three-dimensional gas-liquid contact interface. After the free ammonia in the wastewater is resolved at the interface, it rises to the top of the tank body 1 with the air flow, enters the condenser 14 through the recovery pipe 13 for cooling and recovery of ammonia water. After the treatment is completed, the heating jacket 38 and the vibration motor 40 are turned off, and the sludge and insoluble salt are discharged through the drain valve. When cleaning is required, clean water is injected and the process is repeated to utilize disturbance and micro-vibration for self-cleaning.

[0076] The device is designed to prevent clogging and erosion of the internal transmission structure of the tank body 1 as follows: a nano-anti-stick coating is used to reduce the adhesion of suspended matter, and the dynamic disturbance of the composite motion frame 2 and the micro-vibration of the vibration motor 40 are combined to flush the tooth gap to prevent clogging;

[0077] A corrugated sealing cover 43, a double mechanical seal of the rotary joint and a waterproof shield are used to isolate wastewater. The transmission parts are made of 316L stainless steel / nickel-plated / PTFE-coated corrosion-resistant materials and waterproof lithium-based grease is used to isolate media corrosion.

[0078] In terms of maintenance, vibration parameters, sealing status and grease leakage are monitored daily;

[0079] Clean surface deposits and inspect gear meshing clearance and coating contact angle monthly;

[0080] Annual replacement of seals, comprehensive replacement of grease, flaw detection of key transmission parts and testing of corrosion resistance to ensure a continuous trouble-free period of ≥18 months;

[0081] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0082] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated treatment device for high-ammonia nitrogen desulfurization wastewater, comprising a tank body (1) and a dynamic drive component, characterized in that: The dynamic drive component is connected to a composite motion frame (2) capable of synchronous left-right and up-down reciprocating movement and an air intake shaft (3) capable of periodic reciprocating rotation and cyclic speed change. The reciprocating movement stroke and movement frequency of the composite motion frame (2) are periodically cyclically changed. A rotating shaft (4) is rotatably sleeved on the air intake shaft (3). The rotating shaft (4) rotates coaxially with the air intake shaft (3) in opposite directions. Two symmetrically arranged air stripping components are provided on the rotating shaft (4). The stripping and air stripping component comprises a stripping frame (5) mounted on a rotary shaft (4); a fixed gear ring (6) is fixedly mounted on the stripping frame (5) and a rotating air stripping frame (7) is rotatably mounted on the rotating air stripping frame (7); four air guide cyclones (8) driven by the fixed gear ring (6) are rotatably mounted on the rotating air stripping frame (7); the end of each air guide cyclone (8) is connected to a nozzle (10) inclined at 45 degrees through a corrugated metal pipe (9); a reciprocating screw rod (11) capable of periodic reciprocating rotation is rotatably mounted on the axis of the rotating air stripping frame (7); the reciprocating screw rod (11) is rotatably mounted on the axis of the rotating air stripping frame (7); and the reciprocating screw rod (11) is rotatably mounted on the axis of the rotating air stripping frame (7). The rod (11) and the rotating air lift frame (7) are both driven by the air inlet shaft (3), and the rotation speeds of the two rotating air lift frames (7) are different. A guide frame (44) is installed on the reciprocating screw rod (11) for transmission, and an extension bracket (12) is rotatably installed on the guide bracket (44). Each nozzle (10) is rotatably connected to the extension bracket (12). An air guide component for feeding waste gas to the nozzle (10) is provided in the air inlet shaft (3). The top of the tank body (1) is connected to a recovery pipe (13), and the other end of the recovery pipe (13) is connected to a condenser (14).

2. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: The dynamic driving component comprises a fixed frame (15) and a reciprocating frame (16) slidably connected to the fixed frame (15), a servo motor (17) is installed on the fixed frame (15), a large square shaft (18), a small square shaft (19) and a first moving screw rod (20) are respectively rotatably installed on the fixed frame (15), the output shaft end of the servo motor (17) is fixedly connected to the large square shaft (18), a hollow shaft (21) and a large circular shaft (22) are respectively rotatably installed on the reciprocating frame (16), the hollow shaft (21) is driven by the large square shaft (18), and the small square shaft (19) is driven by the large circular shaft (22), an intermittent large gear (23) and an intermittent small gear (24) are respectively installed on the hollow shaft (21), and two symmetrically arranged non-transmission sections are provided on the hollow shaft (21) corresponding to the position between the intermittent large gear (23) and the intermittent small gear (24), the large square shaft (21) and the small square shaft (22) are respectively rotatably installed. Two speed-changing gears (25) are installed on the circular shaft (22), and the two speed-changing gears (25) are respectively meshed with the intermittent large gear (23) and the intermittent small gear (24). A synchronous toothed belt is connected between the small square shaft (19) and the first moving screw rod (20). An elastic tensioning belt (26) is installed on the large circular shaft (22). The air intake shaft (3) is connected to the elastic tensioning belt (26). A second moving screw rod (27) driven by the elastic tensioning belt (26) is rotatably installed on the reciprocating frame (16). The second moving screw rod (27) is connected to the composite moving frame (2). A first reset direction-changing torsion spring (28) is provided at the rotation connection between the first moving screw rod (20) and the fixed frame (15), the rotation connection between the second moving screw rod (27) and the reciprocating frame (16), and the rotation connection between the air intake shaft (3) and the composite moving frame (2).

3. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 2, characterized in that: The hollow shaft (21) is fixedly provided with a first square groove with two ends opened and slidably connected to the large square shaft (18), and the large circular shaft (22) is fixedly provided with a second square groove with two ends opened and slidably connected to the small square shaft (19). The cross sections of the first square groove, the second square groove, the large square shaft (18) and the small square shaft (19) are all regular polygons. A small circular shaft (29) is rotatably mounted on the reciprocating frame (16). The small circular shaft (29) is transmission-connected to the elastic tensioning belt (26). The small circular shaft (29) and the second moving screw rod (27) are both provided with first bevel gears, and the two first bevel gears are meshed with each other.

4. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 2, characterized in that: The central angle corresponding to the intermittent large gear (23) is 180°, the central angle corresponding to the intermittent small gear (24) is 90°, and the central angles corresponding to the two non-transmission sections are both 45°. The radius of the intermittent large gear (23) and the intermittent small gear (24) are the same, and the radius of the two speed-changing gears (25) are the same. The radius of the intermittent large gear (23) is 8 to 10 times the radius of the speed-changing gear (25).

5. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: A rotating shaft (30) is rotatably mounted on the composite motion frame (2), a rotating bevel gear is mounted on the rotating shaft (30), outer bevel gears are mounted on both the intake shaft (3) and the rotating shaft (4), the two outer bevel gears are both transmission-connected to the rotating bevel gear, the two outer bevel gears are respectively arranged on both sides of the rotating bevel gear, a corrugated sealing cover (43) is rotatably sleeved on the rotating shaft (4), and the corrugated sealing cover (43) is fixedly connected to the tank body (1).

6. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: A differential bevel gear (31) is installed on each of the two rotating air lift frames (7), and the radii of the two differential bevel gears (31) are different. Two upper bevel gears (32) are installed on the intake shaft (3), and the two upper bevel gears (32) are respectively connected to the two differential bevel gears (31) in a transmission manner. A rear bevel gear is installed at the tail end of the reciprocating screw (11), and a lower bevel gear connected to the rear bevel gear in a transmission manner is installed on the intake shaft (3). A second return torsion spring (33) is fixedly provided at the rotation connection between the reciprocating screw (11) and the rotating air lift frame (7).

7. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: The air guide component comprises an air inlet pipe (34) mounted on a fixed frame (15) and a distribution air duct (35) provided in the air inlet shaft (3); an air outlet port of the air inlet pipe (34) is connected to the distribution air duct (35) via a corrugated joint; an air separation cavity (36) is provided on the rotary shaft (4); the air separation cavity (36) is rotatably connected to the distribution air duct (35); an air guide ring duct connected to the air separation cavity (36) is provided inside each of the rotary air lift frames (7); a driven rotating ring (37) is rotatably mounted on the air guide ring duct; and each of the air guide cyclones (8) is rotatably connected to the driven rotating ring (37) via a rotary joint.

8. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: The tank body (1) is provided with a heating jacket (38) and a microcontroller (39), a vibration motor (40) is provided on the heating jacket (38), a set of supporting legs is provided at the lower part of the tank body (1), a sewage valve is provided at the bottom of the tank body (1), a nano-anti-stick coating is fixedly provided on the inner wall of the tank body (1), and a wastewater inlet pipe (42) is provided at the top of the tank body (1).

9. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: The axes of the air inlet shaft (3) and the first moving screw (20) are both perpendicular to the axis of the tank body (1), and the axes of the rotating air lift frame (7) and the second moving screw (27) are both perpendicular to the axis of the tank body (1).

10. The integrated treatment device for high-ammonia nitrogen desulfurization wastewater according to claim 1, characterized in that: A driven gear (41) is fixedly mounted on the air guide cyclone (8) and is in transmission connection with the fixed gear ring (6).

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