High-concentration ammonia-nitrogen wastewater recovery treatment device and recovery process

Abstract

The invention discloses a high-concentration ammonia-nitrogen wastewater recycling device and a recycling process, and belongs to the technical field of ammonia-nitrogen wastewater treatment.The upper cover is provided with a liquid inlet mechanism and a liquid outlet mechanism, and each hollow stirring plate is evenly provided with a plurality of first steam outlets; a cavity rod communicating with the annular cavity is arranged at the bottom of each first stirring plate, and a plurality of second steam outlets are evenly formed in each cavity rod. The pH value of ammonia-nitrogen wastewater in the inner cylinder is adjusted to 10-11, meanwhile, the ammonia-nitrogen wastewater in the inner cylinder is heated by the heating pipe at the heating temperature of 30-35 DEG C, ammonia nitrogen in the ammonia-nitrogen wastewater is removed for the first time by adopting an air stripping method, the ammonia-nitrogen wastewater in the inner cylinder is pumped into the outer cylinder, and ammonia nitrogen in the ammonia-nitrogen wastewater is removed for the second time by adopting the air stripping method. The high-concentration ammonia-nitrogen wastewater is treated in a two-stage stripping mode, recycling of ammonia nitrogen in a gas phase is facilitated, and the method has the advantages of being simple in technological operation and high in ammonia-nitrogen removal rate.

Description

Technical Field

[0001] The invention relates to the technical field of ammonia nitrogen wastewater treatment, and in particular to a high-concentration ammonia nitrogen wastewater recovery and treatment device and a recovery process. Background Art

[0002] Ammonia nitrogen is ammonia nitrogen, which generally refers to free ammonia (NH3) and ammonium ions (NH4 + ) in the form of nitrogen. There are many sources of ammonia nitrogen wastewater, such as domestic sewage, agricultural irrigation wastewater, food processing wastewater, fertilizer, metallurgical production wastewater, refinery and pharmaceutical factory wastewater, etc.

[0003] At present, the common high-concentration ammonia nitrogen wastewater treatment processes mainly include biological methods and physical and chemical methods. As a traditional deammonification method, the biological method has been widely used. Common ones include A / O process, A2 / O process and anaerobic ammonia oxidation process. The advantages of the biological method are high ammonia nitrogen load, no need to adjust the pH value of the treatment process, and less alkali addition. The disadvantages are complex process flow, many limiting factors, and large footprint. Common physical and chemical methods include chemical precipitation, electrochemical method, natural zeolite adsorption method, membrane method and air stripping method. The advantages of the physical method are simple operation, high ammonia nitrogen load, small footprint, etc. The disadvantages are high energy consumption, easy scaling and clogging of pipelines, etc. The advantages of the chemical method are high ammonia nitrogen removal rate, simple process flow, low energy consumption, etc. The disadvantages are low ammonia nitrogen load, large amount of chemical precipitation required, and large footprint. The traditional biochemical method is suitable for low-concentration ammonia nitrogen wastewater, the ion exchange method is suitable for low-concentration ammonia nitrogen wastewater, the membrane filtration method is suitable for ammonia nitrogen wastewater with good wastewater quality, the breakpoint chlorination method is mostly used for low-concentration wastewater, and the ammonia stripping method is suitable for medium and high-concentration wastewater.

[0004] At present, the stripping method is to adjust the pH value of the wastewater to alkaline, so that the ammonia nitrogen exists in the form of free ammonia, and then remove it from the water by air stripping. The structure of the stripping tower generally adopts a gas-liquid contact device, and fills the material inside the tower to increase the contact area. The water after adjusting the pH value is sprinkled from the upper part of the tower onto the filler to form water droplets, which fall down in sequence along the gaps of the filler and contact with the air or steam blown upward or horizontally from the bottom of the tower in countercurrent, completing the mass transfer process, so that the ammonia is converted from liquid phase to gas phase, and discharged with air or steam to complete the stripping process. A large amount of ammonia gas will be generated during the stripping process, which will cause secondary pollution when it escapes into the atmosphere, which does not meet environmental protection requirements. The filler layer is prone to scaling during the stripping process, which makes the wastewater flow unsmooth, thereby affecting the normal operation of the equipment. At the same time, the existing high-concentration ammonia nitrogen wastewater recovery and treatment device has the disadvantage of high cost. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a high-concentration ammonia nitrogen wastewater recovery and treatment device and a recovery process with simple process operation and high ammonia nitrogen removal rate.

[0006] The technical solution adopted to solve the above technical problems is: an outer cylinder is arranged at the top of the sedimentation cylinder, an inner cylinder is arranged inside the outer cylinder, an upper cover is arranged at the top of the outer cylinder, an inlet pipe for introducing ammonia nitrogen wastewater is arranged on the upper cover, and an inlet mechanism for pumping the ammonia nitrogen wastewater in the inlet pipe into the inner cylinder is arranged on the upper cover; an alkali liquid cylinder for storing alkali liquid is arranged on the top of the outer cylinder, an alkali liquid inlet which is interconnected with the inner cylinder and the alkali liquid cylinder is processed on the top of the outer cylinder, a bottom support cylinder is arranged at the bottom of the inner cylinder, a second rotating ring is rotatably installed inside the bottom support cylinder, a second gear ring connected with the driving mechanism is arranged on the inner circumference of the second rotating ring, the inside of the second rotating ring is fixedly connected with the connecting cavity through a plurality of connecting rods, a steam generator is arranged on the outside of the outer cylinder, the steam generated by the steam generator is interconnected with the connecting cavity through a steam pipe, a plurality of hollow stirring plates for stirring the ammonia nitrogen wastewater and the alkali liquid in the inner cylinder are evenly arranged in the circumferential direction between the connecting cavity and the second rotating ring, and each hollow stirring plate is respectively connected to the connecting The connecting cavities are interconnected, and each hollow stirring plate is evenly processed with a plurality of first steam outlets. The steam generated by the plurality of first steam outlets removes ammonia nitrogen in the ammonia nitrogen wastewater in the inner cylinder. A liquid outlet mechanism for pumping the treated ammonia nitrogen wastewater in the inner cylinder into the outer cylinder is arranged on the upper cover. A first rotating ring located inside the outer cylinder is rotatably installed on the outer circumference of the inner cylinder. A first gear ring connected to the driving mechanism is arranged on the outer circumference of the first rotating ring. An annular cavity interconnected with the steam pipe is arranged in the circumferential direction of the first rotating ring. First stirring plates for stirring the ammonia nitrogen wastewater inside the outer cylinder are evenly arranged in the circumferential direction of the annular cavity. A cavity rod interconnected with the annular cavity is respectively arranged at the bottom of each first stirring plate. A plurality of second steam outlets are evenly processed on each cavity rod. The steam generated by the plurality of second steam outlets removes ammonia nitrogen in the ammonia nitrogen wastewater in the outer cylinder. The outer cylinder is provided with a first liquid outlet pipe interconnected therewith, and the upper cover is provided with gas pipelines interconnected with the outer cylinder and the inner cylinder, respectively.

[0007] Furthermore, the alkali liquid cylinder is provided with a fourth motor for driving the sixth rotating shaft to rotate, a connecting plate is provided at the bottom of the alkali liquid cylinder, and a paddle is evenly provided in the circumferential direction of the connecting plate for directing the alkali liquid in the alkali liquid cylinder into the inner cylinder through the alkali liquid inlet.

[0008] Furthermore, a plurality of heating tubes are evenly arranged in the circumferential direction of the bottom support cylinder.

[0009] Furthermore, the water inlet of the first liquid outlet pipe is provided with a second connecting piece, the second connecting piece is processed with a third through hole in the circumferential direction and is interconnected with the inner tube, the second connecting piece is rotatably installed with a second rotating piece on the outer circumference, and the second rotating piece is evenly processed with fourth through holes in the circumferential direction and are interconnected with the third through hole.

[0010] Furthermore, the liquid inlet mechanism is as follows: a first water pumping cylinder is arranged on the outer cylinder, a second support frame is arranged on the upper cover, a first motor driving the first connecting disk to rotate is arranged on the second support frame, the first connecting disk is eccentrically connected to the second connecting disk through a first sliding rod, a first piston is slidably connected to the inside of the first water pumping cylinder in a vertical direction, a first sliding hole is processed on the top of the first piston and is slidably connected to the first sliding rod in a horizontal direction, the liquid inlet pipe is unidirectionally connected to the inlet end of the first water pumping cylinder through the second one-way valve assembly, the outlet end of the first water pumping cylinder is unidirectionally connected to the first one-way valve assembly through the first connecting pipe, and the first one-way valve assembly is connected to the inside of the inner cylinder; the structure of the first one-way valve assembly is the same as that of the second one-way valve assembly, and the first one-way valve assembly is as follows: a first support frame is arranged at the bottom of the valve housing, a sliding rod is slidably connected to the inside of the first support frame in a vertical direction, a cone is arranged on the top of the sliding rod, a spring is arranged on the sliding rod, one end of the spring is fixedly connected to the cone, and the other end of the spring is fixedly connected to the first support frame.

[0011] Furthermore, the liquid discharge mechanism is as follows: a second water pumping cylinder is arranged on the outer cylinder, a second motor driving the fourth connecting disk to rotate is arranged on the second supporting frame, the fourth connecting disk is eccentrically connected to the third connecting disk through a second sliding rod, a second piston is slidably connected in the second water pumping cylinder in a vertical direction, a second sliding hole is processed on the top of the second piston and is slidably connected to the second sliding rod in a horizontal direction, the inlet end of the second water pumping cylinder is connected to the second liquid outlet pipe, the second liquid outlet pipe is connected to the inner part of the outer cylinder in a one-way manner through a fourth one-way valve assembly, the outlet end of the second water pumping cylinder is connected to the second connecting pipe, the second connecting pipe is connected to the inner part of the inner cylinder in a one-way manner through the third one-way valve assembly, a first connecting member is arranged at the bottom of the third one-way valve assembly, the first connecting member is uniformly processed with second through holes in a circumferential direction, the first connecting member is rotatably connected with a first rotating member in a circumferential direction, the first rotating member is uniformly processed with a first through hole in a circumferential direction that is connected to the second through hole, and the structure of the fourth one-way valve assembly and the structure of the third one-way valve assembly are the same as those of the first one-way valve assembly.

[0012] Furthermore, the driving mechanism is as follows: a fourth support frame is provided on the upper cover, a third motor for driving the second rotating shaft to rotate is provided on the fourth support frame, a second transmission wheel is provided on the second rotating shaft, a third support frame is provided on the upper cover, the first rotating shaft is rotatably installed on the third support frame, a first transmission wheel is provided on the first rotating shaft, the second transmission wheel is connected to the first transmission wheel through a transmission belt, a first bevel gear is provided at one end of the first rotating shaft, the third rotating shaft is rotatably installed on the third support frame, a second bevel gear meshing with the first bevel gear is provided at the top of the third rotating shaft, a third gear is provided at the bottom of the third rotating shaft, the fourth rotating shaft and the fifth rotating shaft are rotatably installed on the third support frame, a first gear meshing with the third gear is provided at the top of the fifth rotating shaft, a fifth gear meshing with the second gear ring is provided at the bottom of the fifth rotating shaft, a second gear meshing with the third gear is provided at the top of the fourth rotating shaft, and a fourth gear meshing with the first gear ring is provided at the bottom of the fourth rotating shaft.

[0013] Furthermore, a rotating disk is rotatably installed inside the sedimentation cylinder, a second feed port interconnected with the bottom outlet end of the inner cylinder is processed on the rotating disk, a third feed port interconnected with the second feed port is processed on the top of the sedimentation cylinder, a first feed port interconnected with the bottom outlet end of the outer cylinder is uniformly processed on the rotating disk in the circumferential direction, a fourth feed port interconnected with the first feed port is uniformly processed on the top of the sedimentation cylinder in the circumferential direction, an impurity removal mechanism for removing impurities in ammonia nitrogen wastewater is arranged inside the sedimentation cylinder, a vibrating rod material level switch for detecting impurities inside the sedimentation cylinder is arranged inside the sedimentation cylinder, and a discharge port is processed on one side of the sedimentation cylinder. A discharge door is slidably connected to the discharge port, and the discharge door is fixedly connected to the impurity removal mechanism; the impurity removal mechanism is as follows: a fifth motor for driving the sixth gear to rotate is arranged on the sedimentation cylinder, a rack meshing with the sixth gear is arranged on the rotating disk, a guide rod slidably connected to the third sliding hole on the rotating disk is arranged on the sedimentation cylinder, the rotating disk is fixedly connected to the discharge door, a sixth motor for driving the seventh gear to rotate is arranged on the sedimentation cylinder, a third rotating ring is rotatably installed inside the sedimentation cylinder, a third gear ring meshing with the seventh gear is arranged on the third rotating ring, and scrapers for scraping impurities inside the sedimentation cylinder are evenly arranged in the circumferential direction of the third rotating ring.

[0014] A recovery process using a high-concentration ammonia nitrogen wastewater recovery and treatment device comprises the following steps: S1, the liquid inlet mechanism draws the ammonia nitrogen wastewater into the inner cylinder through the liquid inlet pipe, and alkali solution is added to the alkali solution cylinder. The output shaft of the fourth motor drives the paddle on the connecting plate to rotate through the sixth rotating shaft, and the paddle drives the alkali solution in the alkali solution cylinder into the inner cylinder through the alkali solution inlet. The pH value inside the inner cylinder is tested by a pH value tester, and the pH value of the ammonia nitrogen wastewater inside the inner cylinder is adjusted to 10-11; S2, the steam generated by the steam generator passes through the steam pipe and sequentially enters the multiple hollow stirring plates through the connecting cavity, the driving mechanism drives the second gear ring to rotate, the second gear ring drives the second rotating ring to rotate, the second rotating ring drives the connecting cavity and the multiple hollow stirring plates to rotate through the connecting rod, the multiple hollow stirring plates stir the ammonia nitrogen wastewater inside the inner cylinder, the steam in each hollow stirring plate is blown into the inner cylinder through the first steam outlet to fully contact with the ammonia nitrogen wastewater, and the heating tube heats the ammonia nitrogen wastewater inside the inner cylinder, and the ammonia nitrogen in the ammonia nitrogen wastewater is removed for the first time by the stripping method, and the generated gas is discharged through the gas pipe; S3, after the treatment of the ammonia nitrogen wastewater inside the inner cylinder is completed, the liquid discharge mechanism pumps the ammonia nitrogen wastewater inside the inner cylinder into the outer cylinder, and the steam generated by the steam generator passes through the annular cavity through the steam pipe in turn and enters the multiple cavity rods, the driving mechanism drives the first gear ring to rotate, the first gear ring drives the first rotating ring to rotate, the first rotating ring drives the annular cavity, the multiple first stirring plates, and the multiple cavity rods to rotate, the multiple first stirring plates stir the ammonia nitrogen wastewater in the outer cylinder, the steam in each cavity rod is blown into the outer cylinder through the multiple second steam outlets to fully contact with the ammonia nitrogen wastewater, the ammonia nitrogen in the ammonia nitrogen wastewater is removed for the second time by the stripping method, and the generated gas is discharged through the gas pipeline; S4, the treated ammonia nitrogen wastewater inside the outer cylinder drives the second rotating member to rotate on the second connecting member, and the ammonia nitrogen wastewater enters the first liquid outlet pipe and flows out through the fourth through hole of the second rotating member and the third through hole of the second connecting member in turn. The impurity removal mechanism drives the rotating disk to rotate, and the outlet end at the bottom of the inner cylinder is connected to the second feed port of the rotating disk, and the second feed port is connected to the third feed port at the top of the sedimentation cylinder. The impurities inside the inner cylinder enter the sedimentation cylinder through the outlet end, the second feed port and the third feed port of the inner cylinder in turn. The multiple outlet ends in the circumferential direction of the outer cylinder are respectively connected to the corresponding first feed ports, and the first feed port is connected to the fourth feed port of the sedimentation cylinder. The impurities inside the outer cylinder enter the sedimentation cylinder through the outlet end, the first feed port and the fourth feed port at the bottom of the outer cylinder in turn. The impurities inside the outer cylinder open the discharge door of the sedimentation cylinder and discharge the impurities inside the sedimentation cylinder at the same time.

[0015] Furthermore, the method in which the liquid inlet mechanism in S1 draws the ammonia nitrogen wastewater into the inner cylinder through the liquid inlet pipe is as follows: the ammonia nitrogen wastewater enters the liquid inlet pipe, the output shaft of the first motor drives the first connecting disk to rotate, the first connecting disk drives the second connecting disk to rotate through the first sliding rod, the first sliding rod slides in the horizontal direction in the first sliding hole, thereby driving the first piston to slide in the vertical direction in the first pumping cylinder, and the ammonia nitrogen wastewater in the liquid inlet pipe flows into the first pumping cylinder, the first connecting pipe, and the first one-way valve assembly in sequence to enter the inner cylinder in a one-way manner; The method for the driving mechanism in S2 to drive the second gear ring to rotate is as follows: the output shaft of the third motor drives the second rotating shaft to rotate, the second transmission wheel on the second rotating shaft drives the first transmission wheel to rotate through the transmission belt, the first transmission wheel drives the first rotating shaft to rotate, the first rotating shaft drives the first bevel gear to rotate, the first bevel gear meshes with the second bevel gear for transmission, the second bevel gear drives the third rotating shaft and the third gear to rotate, the third gear meshes with the first gear to drive the first gear to rotate, the first gear drives the fifth gear to rotate through the fifth rotating shaft, and the fifth gear meshes with the second gear ring to drive the second gear ring to rotate; The method in which the driving mechanism in S3 drives the first gear ring to rotate is: the third gear drives the second gear to rotate by meshing with the second gear, the second gear drives the fourth shaft to rotate, the fourth shaft drives the fourth gear to rotate, and the fourth gear drives the first gear ring to rotate by meshing with the first gear ring; The method of the liquid outlet mechanism in S3 for pumping the ammonia nitrogen wastewater inside the inner cylinder into the outer cylinder is as follows: the output shaft of the second motor drives the fourth connecting disk to rotate, the fourth connecting disk drives the third connecting disk to rotate through the second sliding rod, the second sliding rod slides in the second sliding hole in the horizontal direction, thereby driving the second piston to slide in the second pumping cylinder in the vertical direction, the ammonia nitrogen wastewater inside the inner cylinder drives the first rotating member to rotate on the second connecting disk, and the ammonia nitrogen wastewater passes through the first through hole of the first rotating member, the second through hole of the first connecting member, the one-way flow third one-way valve assembly, the second connecting pipe, the second pumping cylinder, the second liquid outlet pipe, and the one-way flow fourth one-way valve assembly to enter the outer cylinder in sequence; The method of driving the rotating disk to rotate by the impurity removal mechanism in S4 is as follows: the output shaft of the fifth motor drives the sixth gear to rotate, and the sixth gear drives the rotating disk to rotate inside the sedimentation cylinder by meshing with the rack; The impurity removal mechanism in S4 opens the discharge door of the sedimentation drum and discharges impurities inside the sedimentation drum in the following manner: the rotating disk drives the discharge door to rotate, and the discharge door is separated from the discharge port of the sedimentation drum; the output shaft of the sixth motor drives the seventh gear to rotate, and the seventh gear drives the third gear ring to rotate by meshing with the third gear ring; the third gear ring drives the third rotating ring to rotate, and the third rotating ring drives the scraper to rotate inside the sedimentation drum, and the scraper removes the impurities inside the sedimentation drum through the discharge port of the sedimentation drum.

[0016] The beneficial effects of the present invention are as follows: (1) The present invention adjusts the pH value of the ammonia nitrogen wastewater inside the inner cylinder to 10-11, and the steam in each hollow stirring plate is blown into the inner cylinder through the first steam outlet to fully contact with the ammonia nitrogen wastewater. At the same time, the heating tube heats the ammonia nitrogen wastewater inside the inner cylinder, and the heating temperature is 30°C-35°C. The ammonia nitrogen in the ammonia nitrogen wastewater is removed for the first time by the stripping method, and the ammonia nitrogen wastewater inside the inner cylinder is pumped into the outer cylinder. The steam in each cavity rod is blown into the outer cylinder through multiple second steam outlets to fully contact with the ammonia nitrogen wastewater. The ammonia nitrogen in the ammonia nitrogen wastewater is removed for the second time by the stripping method. The gas generated by the inner cylinder and the outer cylinder is discharged through the gas pipeline. The ammonia nitrogen in the high-concentration ammonia nitrogen wastewater is treated by a two-stage stripping method, which is beneficial to the recovery and utilization of ammonia nitrogen in the gas phase and improves the treatment efficiency and treatment effect of wastewater. The present invention has the advantages of simple process operation and high ammonia nitrogen removal rate.

[0017] (2) The ammonia nitrogen wastewater in the outer cylinder of the present invention enters the first liquid outlet pipe and flows out through the fourth through hole of the second rotating member and the third through hole of the second connecting member in turn. The impurity removal mechanism opens the discharge door of the sedimentation cylinder, and the scraper removes the impurities inside the sedimentation cylinder through the discharge port of the sedimentation cylinder. The impurities in the inner cylinder and the outer cylinder can be discharged, and the advantages of synchronous sedimentation and recovery can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a high-concentration ammonia nitrogen wastewater recovery and treatment device of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle.

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure with the upper cover removed.

[0021] Figure 4 It is a schematic diagram of the structure of the outer cylinder and the alkali liquid cylinder.

[0022] Figure 5 This is a schematic diagram of the parts structure on the dial.

[0023] Figure 6 It is a schematic diagram of the bottom structure of the outer tube and the inner tube.

[0024] Figure 7 yes Figure 1 Schematic diagram of the structure with the upper cover and outer cylinder removed.

[0025] Figure 8 yes Figure 7 Schematic diagram of the parts structure with the upper cover, outer cylinder and sedimentation cylinder removed.

[0026] Fig. 9It is a schematic diagram of the structure of the first liquid outlet pipe and the second rotating member.

[0027] Fig.10 yes Fig. 9 Schematic diagram of the structure in which the second rotating member is removed.

[0028] Fig.11 Schematic diagram of the structure of the second rotating member.

[0029] Fig.12 It is a structural schematic diagram of the liquid inlet mechanism and the liquid outlet mechanism.

[0030] Fig.13 It is a schematic diagram of the structure of the valve housing.

[0031] Fig.14 yes Fig.13 AA section view.

[0032] Fig.15 It is a schematic diagram of the internal structure of the valve housing.

[0033] Fig.16 yes Fig.12 Schematic diagram of the structure from another angle.

[0034] Fig.17 It is a structural diagram of the liquid inlet mechanism.

[0035] Fig.18 It is a structural schematic diagram of the liquid discharge mechanism.

[0036] Fig.19 Schematic diagram of the structure of the first rotating member.

[0037] Fig. 20 Schematic diagram of the structure of the first connecting member.

[0038] Fig.21 It is a structural diagram of the driving mechanism.

[0039] Fig. 22 It is a structural schematic diagram of a hollow stirring plate and a second rotating ring.

[0040] Fig.23 It is a structural schematic diagram of the first rotating ring, the first stirring plate and the annular cavity.

[0041] Fig.24 yes Fig.23 Schematic diagram of the bottom structure.

[0042] Fig.25 It is a structural diagram of the impurity removal mechanism.

[0043] Fig.26 It is a schematic diagram of the parts structure on the rotating disk.

[0044] Fig. 27 It is a schematic diagram of the internal structure of the sedimentation cylinder.

[0045] Fig.28 It is a schematic diagram of the structure of the sedimentation cylinder.

[0046] 1001, first one-way valve assembly; 100101, valve housing; 100102, cone; 100103, sliding rod; 100104, spring; 100105, first support frame; 1002, first connecting pipe; 1003, second one-way valve assembly; 1004, first pumping cylinder; 1005, first motor; 1006, first connecting plate; 1007, second connecting plate; 1008, second support frame; 1009, first sliding rod; 1010, first sliding hole; 1011, first a piston; 11, a liquid outlet mechanism; 1101, a third connecting plate; 1102, a fourth connecting plate; 1103, a second motor; 1104, a second pumping cylinder; 1105, a second connecting pipe; 1106, a third one-way valve assembly; 1107, a first connecting member; 1108, a first rotating member; 1109, a second liquid outlet pipe; 1110, a fourth one-way valve assembly; 1111, a second sliding rod; 1112, a second sliding hole; 1113, a second piston; 1114, a first through hole; 1115, a second through hole; 12, a driving mechanism; 1201, a first gear; 1202, a third supporting frame; 1203, a first transmission wheel; 1204, a first rotating shaft; 1205, a fourth supporting frame; 1206, a second rotating shaft; 1207, second transmission wheel; 1208, third motor; 1209, transmission belt; 1210, first bevel gear; 1211, second bevel gear; 1212, third rotating shaft; 1213, second gear; 1214, third gear; 1215, fourth rotating shaft; 1216, fifth rotating shaft; 1217, fourth gear; 1218, fifth gear; 13, fourth motor; 14, alkali liquid cylinder; 15, alkali liquid inlet; 16, sixth rotating shaft; 17, paddle plate; 18, connecting plate; 19, inner cylinder; 20, first gear ring; 21, first rotating ring; 22, first stirring plate; 23, annular cavity; 24, bottom support cylinder; 25, heating tube; 26, second rotating member; 27, third through hole; 28, second connecting member; 2 9. Fourth through hole; 30. pH value tester; 31. Second gear ring; 32. First steam outlet; 33. Hollow stirring plate; 34. Connecting cavity; 35. Connecting rod; 36. Second rotating ring; 37. Cavity rod; 38. Second steam outlet; 39. De-impurity mechanism; 3901. Fifth motor; 3902. Sixth gear; 3903. Third slide hole; 3904. Guide rod; 3905. Sixth motor; 3906. Rack; 3907. Third gear ring; 3908. Seventh gear; 3909. Third rotating ring; 3910. Scraper; 40. Discharge port; 41. First feed port; 42. Second feed port; 43. Rotating disk; 44. Vibrating rod level switch; 45. Third feed port; 46. Fourth feed port. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] like Figures 1 to 11 , Figure 25 to Figure 28 As shown, the high-concentration ammonia nitrogen wastewater recovery and treatment device of this embodiment comprises a steam generator 1, a steam pipeline 2, an upper cover 3, a gas pipeline 4, an outer cylinder 5, a first liquid outlet pipe 6, a sedimentation cylinder 7, a liquid inlet pipe 8, a discharge door 9, a liquid inlet mechanism 10, a liquid outlet mechanism 11, a driving mechanism 12, a fourth motor 13, an alkali liquid cylinder 14, an alkali liquid inlet 15, a sixth rotating shaft 16, a paddle 17, a connecting plate 18, an inner cylinder 19, a first gear ring 20, a first rotating ring 21, a first stirring plate 22, an annular cavity 23, a bottom support cylinder 24, a heating tube 25, a second rotating member 26, a third through hole 27, a second connecting member 28, a fourth through hole 29, a pH value tester The instrument 30, the second gear ring 31, the first steam outlet 32, the hollow stirring plate 33, the connecting cavity 34, the connecting rod 35, the second rotating ring 36, the cavity rod 37, the second steam outlet 38, the impurity removal mechanism 39, the fifth motor 3901, the sixth gear 3902, the third slide hole 3903, the guide rod 3904, the sixth motor 3905, the rack 3906, the third gear ring 3907, the seventh gear 3908, the third rotating ring 3909, the scraper 3910, the discharge port 40, the first feed port 41, the second feed port 42, the rotating disk 43, the vibrating rod level switch 44, the third feed port 45, and the fourth feed port 46 are connected to form.

[0049] An outer cylinder 5 is arranged on the top of the sedimentation cylinder 7, an inner cylinder 19 is arranged inside the outer cylinder 5, a plurality of heating tubes 25 are evenly arranged in the circumferential direction of the inner bottom of the inner cylinder 19, an upper cover 3 is arranged on the top of the outer cylinder 5, a liquid inlet pipe 8 for introducing ammonia nitrogen wastewater is arranged on the upper cover 3, a liquid inlet mechanism 10 for pumping the ammonia nitrogen wastewater in the liquid inlet pipe 8 into the inner cylinder 19 is arranged on the upper cover 3, an alkali liquid cylinder 14 for storing alkali liquid is arranged on the top of the outer cylinder 5, an alkali liquid inlet 15 which is interconnected with the inner cylinder 19 and the alkali liquid cylinder 14 is processed on the top of the outer cylinder 5, a fourth motor 13 for driving the sixth rotating shaft 16 to rotate is arranged on the alkali liquid cylinder 14, a connecting plate 18 is arranged at the bottom of the alkali liquid cylinder 14, and a paddle 17 is evenly arranged in the circumferential direction of the connecting plate 18, and the paddle 17 allows the alkali liquid in the alkali liquid cylinder 14 to enter the inner cylinder 19 through the alkali liquid inlet 15.

[0050] A bottom support cylinder 24 is provided at the bottom of the inner cylinder 19, and a second rotating ring 36 is rotatably installed inside the bottom support cylinder 24. A second gear ring 31 connected to the driving mechanism 12 is provided on the inner circumference of the second rotating ring 36. The inside of the second rotating ring 36 is fixedly connected to the connecting cavity 34 through a plurality of connecting rods 35. A steam generator 1 is provided on the outside of the outer cylinder 5. The steam generated by the steam generator 1 is communicated with the connecting cavity 34 through a steam pipe 2. A plurality of hollow stirring plates 33 for stirring the ammonia nitrogen wastewater and alkali solution inside the inner cylinder 19 are evenly arranged in the circumferential direction between the connecting cavity 34 and the second rotating ring 36. Each hollow stirring plate 33 is respectively communicated with the connecting cavity 34. A plurality of first steam outlets 32 are evenly processed on each hollow stirring plate 33. The steam generated by the plurality of first steam outlets 32 removes ammonia nitrogen from the ammonia nitrogen wastewater in the inner cylinder 19. A liquid outlet mechanism 11 for pumping the treated ammonia nitrogen wastewater in the inner cylinder 19 into the outer cylinder 5 is provided on the upper cover 3.

[0051] The inner cylinder 19 is rotatably mounted with a first rotating ring 21 located inside the outer cylinder 5. The outer circumference of the first rotating ring 21 is provided with a first gear ring 20 connected to the driving mechanism 12. The first rotating ring 21 is provided with an annular cavity 23 interconnected with the steam pipe 2 in the circumferential direction. The annular cavity 23 is evenly provided with first stirring plates 22 for stirring the ammonia nitrogen wastewater inside the outer cylinder 5 in the circumferential direction. The bottom of each first stirring plate 22 is respectively provided with a cavity rod 37 interconnected with the annular cavity 23. Each cavity rod 37 is evenly processed There are multiple second steam outlets 38, and the steam generated by the multiple second steam outlets 38 removes the ammonia nitrogen in the ammonia nitrogen wastewater in the outer cylinder 5. The outer cylinder 5 is provided with a first liquid outlet pipe 6 interconnected with it, and the water inlet of the first liquid outlet pipe 6 is provided with a second connecting member 28. The second connecting member 28 is processed with a third through hole 27 interconnected with the inner cylinder 19 in the circumferential direction. The second connecting member 28 is rotatably mounted with a second rotating member 26 on the outer circumference, and the second rotating member 26 is uniformly processed with fourth through holes 29 interconnected with the third through hole 27 in the circumferential direction. The upper cover 3 is provided with a gas pipeline 4 interconnected with the outer cylinder 5 and the inner cylinder 19 respectively.

[0052] A rotating disk 43 is rotatably installed inside the sedimentation cylinder 7, and a second feed port 42 is processed on the rotating disk 43 and is interconnected with the bottom outlet end of the inner cylinder 19, and a third feed port 45 is processed on the top of the sedimentation cylinder 7 and is interconnected with the second feed port 42. The rotating disk 43 is uniformly processed with a first feed port 41 that is interconnected with the bottom outlet end of the outer cylinder 5 in the circumferential direction, and a fourth feed port 46 that is interconnected with the first feed port 41 is uniformly processed on the top of the sedimentation cylinder 7 in the circumferential direction. An impurity removal mechanism 39 for removing impurities in ammonia nitrogen wastewater is arranged inside the sedimentation cylinder 7, and a vibrating rod material level switch 44 for detecting impurities inside the sedimentation cylinder 7 is arranged inside the sedimentation cylinder 7. A discharge port 40 is processed on one side of the sedimentation cylinder 7, and a discharge gate 9 is slidably connected to the discharge port 40, and the discharge gate 9 is fixedly connected to the impurity removal mechanism 39.

[0053] like Fig.12 , Figure 16 to Figure 17 As shown, the liquid inlet mechanism 10 is composed of a first one-way valve assembly 1001, a first connecting pipe 1002, a second one-way valve assembly 1003, a first pumping cylinder 1004, a first motor 1005, a first connecting disk 1006, a second connecting disk 1007, a second support frame 1008, a first sliding rod 1009, a first sliding hole 1010, and a first piston 1011.

[0054] The liquid inlet mechanism 10 is as follows: a first water pumping cylinder 1004 is arranged on the outer cylinder 5, a second support frame 1008 is arranged on the upper cover 3, a first motor 1005 for driving the first connecting disk 1006 to rotate is arranged on the second support frame 1008, the first connecting disk 1006 is eccentrically connected to the second connecting disk 1007 through a first sliding rod 1009, a first piston 1011 is slidably connected to the inside of the first water pumping cylinder 1004 in a vertical direction, a first sliding hole 1010 is processed on the top of the first piston 1011 and is slidably connected to the first sliding rod 1009 in a horizontal direction, the liquid inlet pipe 8 is unidirectionally interconnected with the inlet end of the first water pumping cylinder 1004 through the second one-way valve assembly 1003, the outlet end of the first water pumping cylinder 1004 is unidirectionally interconnected with the first one-way valve assembly 1001 through the first connecting pipe 1002, and the first one-way valve assembly 1001 is interconnected with the inside of the inner cylinder 19.

[0055] The structure of the first one-way valve assembly 1001 is the same as that of the second one-way valve assembly 1003. Figures 13 to 15 As shown, the first one-way valve assembly 1001 is composed of a valve housing 100101, a cone 100102, a sliding rod 100103, a spring 100104, and a first support frame 100105.

[0056] The first one-way valve assembly 1001 is as follows: a first support frame 100105 is arranged at the bottom of the valve housing 100101, a sliding rod 100103 is slidably connected to the inside of the first support frame 100105 along a vertical direction, a cone 100102 is arranged on the top of the sliding rod 100103, a spring 100104 is arranged on the sliding rod 100103, one end of the spring 100104 is fixedly connected to the cone 100102, and the other end of the spring 100104 is fixedly connected to the first support frame 100105.

[0057] like Fig.12 , Fig.16 , Figures 18 to 20 As shown, the liquid outlet mechanism 11 is composed of a third connecting disk 1101, a fourth connecting disk 1102, a second motor 1103, a second water pump 1104, a second connecting pipe 1105, a third one-way valve assembly 1106, a first connecting member 1107, a first rotating member 1108, a second liquid outlet pipe 1109, a fourth one-way valve assembly 1110, a second sliding rod 1111, a second sliding hole 1112, a second piston 1113, a first through hole 1114, and a second through hole 1115.

[0058] The liquid discharge mechanism 11 is as follows: a second water pumping cylinder 1104 is arranged on the outer cylinder 5, a second motor 1103 driving the fourth connecting disk 1102 to rotate is arranged on the second support frame 1008, the fourth connecting disk 1102 is eccentrically connected to the third connecting disk 1101 through a second sliding rod 1111, a second piston 1113 is slidably connected in a vertical direction in the second water pumping cylinder 1104, a second sliding hole 1112 is processed on the top of the second piston 1113 and is slidably connected to the second sliding rod 1111 in a horizontal direction, the inlet end of the second water pumping cylinder 1104 is communicated with the second liquid outlet pipe 1109, the second liquid outlet pipe 1109 is unidirectionally communicated with the inside of the outer cylinder 5 through a fourth one-way valve assembly 1110, and the second water pumping cylinder 1104 is connected to the inner part of the outer cylinder 5 in a one-way manner. The outlet end of 1104 is interconnected with the second connecting pipe 1105, and the second connecting pipe 1105 is interconnected with the inside of the inner cylinder 19 in one direction through the third one-way valve assembly 1106. A first connecting member 1107 is arranged at the bottom of the third one-way valve assembly 1106. The first connecting member 1107 is uniformly processed with second through holes 1115 in the circumferential direction. The first connecting member 1107 is rotatably connected to the first rotating member 1108 in the circumferential direction. The first rotating member 1108 is uniformly processed with first through holes 1114 that are interconnected with the second through holes 1115 in the circumferential direction. The structure of the fourth one-way valve assembly 1110 and the structure of the third one-way valve assembly 1106 are the same as the structure of the first one-way valve assembly 1001.

[0059] like Figure 21 to Figure 24As shown, the driving mechanism 12 is composed of a first gear 1201, a third support frame 1202, a first transmission wheel 1203, a first rotating shaft 1204, a fourth support frame 1205, a second rotating shaft 1206, a second transmission wheel 1207, a third motor 1208, a transmission belt 1209, a first bevel gear 1210, a second bevel gear 1211, a third rotating shaft 1212, a second gear 1213, a third gear 1214, a fourth rotating shaft 1215, a fifth rotating shaft 1216, a fourth gear 1217, and a fifth gear 1218.

[0060] The driving mechanism 12 is as follows: a fourth support frame 1205 is provided on the upper cover 3, a third motor 1208 for driving the second rotating shaft 1206 to rotate is provided on the fourth support frame 1205, a second transmission wheel 1207 is provided on the second rotating shaft 1206, a third support frame 1202 is provided on the upper cover 3, a first rotating shaft 1204 is rotatably mounted on the third support frame 1202, a first transmission wheel 1203 is provided on the first rotating shaft 1204, the second transmission wheel 1207 is connected to the first transmission wheel 1203 through a transmission belt 1209, a first bevel gear 1210 is provided at one end of the first rotating shaft 1204, a third rotating shaft 1212 is rotatably mounted on the third support frame 1202, and the third rotating shaft A second bevel gear 1211 that meshes with the first bevel gear 1210 is provided at the top of 1212, a third gear 1214 is provided at the bottom of the third rotating shaft 1212, a fourth rotating shaft 1215 and a fifth rotating shaft 1216 are rotatably mounted on the third supporting frame 1202, a first gear 1201 that meshes with the third gear 1214 is provided at the top of the fifth rotating shaft 1216, a fifth gear 1218 that meshes with the second gear ring 31 is provided at the bottom of the fifth rotating shaft 1216, a second gear 1213 that meshes with the third gear 1214 is provided at the top of the fourth rotating shaft 1215, and a fourth gear 1217 that meshes with the first gear ring 20 is provided at the bottom of the fourth rotating shaft 1215.

[0061] like Figure 25 to Figure 28 As shown, the impurity removal mechanism 39 is composed of a fifth motor 3901, a sixth gear 3902, a third slide hole 3903, a guide rod 3904, a sixth motor 3905, a rack 3906, a third gear ring 3907, a seventh gear 3908, a third rotating ring 3909, and a scraper 3910.

[0062] The impurity removal mechanism 39 is as follows: a fifth motor 3901 for driving the sixth gear 3902 to rotate is arranged on the sedimentation cylinder 7, a rack 3906 meshing with the sixth gear 3902 is arranged on the rotating disk 43, a guide rod 3904 slidingly connected with the third sliding hole 3903 on the rotating disk 43 is arranged on the sedimentation cylinder 7, the rotating disk 43 is fixedly connected to the discharge gate 9, a sixth motor 3905 for driving the seventh gear 3908 to rotate is arranged on the sedimentation cylinder 7, a third rotating ring 3909 is rotatably installed inside the sedimentation cylinder 7, a third gear ring 3907 meshing with the seventh gear 3908 is arranged on the third rotating ring 3909, and scrapers 3910 for scraping impurities inside the sedimentation cylinder 7 are evenly arranged in the circumferential direction of the third rotating ring 3909.

[0063] Ammonia nitrogen in wastewater is mostly in the form of ammonium ions (NH4 + ) and free ammonia (NH3), the two are in balance, and the equilibrium relationship is: NH3+H2O→NH4 + +OH - This balance is affected by pH. When the pH value of wastewater increases, OH - As the number of ions increases, the equilibrium reaction shifts to the left, favoring NH4 + Free NH3 is generated, thereby increasing the proportion of free ammonia, and free ammonia is easy to escape from the water. When the pH value of the wastewater rises to about 11, almost all the ammonia nitrogen in the wastewater exists in the form of NH3. Coupled with the physical effect of aeration stripping, NH3 can be more easily escaped from the water and transferred to the atmosphere. In addition, this reaction is an exothermic reaction. As the temperature rises, the reaction equation moves to the left, which is also conducive to the escape of NH3 from the water. The dissociation rate of ammonia nitrogen at different pH and temperature is shown in Table 1.

[0064] Table 1 Dissociation rate of ammonia nitrogen at different pH and temperature (%) pH 20℃ 30℃ 35℃ 9.0 25 50 58 9.5 60 80 83 10.0 80 90 93 11.0 98 98 98 A recovery process of a high-concentration ammonia nitrogen wastewater recovery and treatment device in this embodiment includes the following steps: S1, the liquid inlet mechanism 10 draws the ammonia nitrogen wastewater into the inner cylinder 19 through the liquid inlet pipe 8, and alkali solution is added to the alkali solution cylinder 14. The output shaft of the fourth motor 13 drives the paddle 17 on the connecting plate 18 to rotate through the sixth rotating shaft 16. The paddle 17 allows the alkali solution in the alkali solution cylinder 14 to enter the inner cylinder 19 through the alkali solution inlet 15. The pH value inside the inner cylinder 19 is detected by the pH value tester 30, and the pH value of the ammonia nitrogen wastewater inside the inner cylinder 19 is adjusted to 10-11.

[0065] The method by which the liquid inlet mechanism 10 draws ammonia nitrogen wastewater into the inner cylinder 19 through the liquid inlet pipe 8 is as follows: the ammonia nitrogen wastewater enters the liquid inlet pipe 8, the output shaft of the first motor 1005 drives the first connecting disk 1006 to rotate, the first connecting disk 1006 drives the second connecting disk 1007 to rotate through the first sliding rod 1009, the first sliding rod 1009 slides in the horizontal direction in the first sliding hole 1010, thereby driving the first piston 1011 to slide in the vertical direction in the first water pumping cylinder 1004, and the ammonia nitrogen wastewater in the liquid inlet pipe 8 flows unidirectionally into the first water pumping cylinder 1004, the first connecting pipe 1002, and the first one-way valve assembly 1001 into the inner cylinder 19 through the second one-way valve assembly 1003 in sequence.

[0066] S2, the steam generated by the steam generator 1 passes through the steam pipe 2 and the connecting cavity 34 in turn into the multiple hollow stirring plates 33, the driving mechanism 12 drives the second gear ring 31 to rotate, the second gear ring 31 drives the second rotating ring 36 to rotate, the second rotating ring 36 drives the connecting cavity 34 and the multiple hollow stirring plates 33 to rotate through the connecting rod 35, the multiple hollow stirring plates 33 stir the ammonia nitrogen wastewater inside the inner tube 19, the steam in each hollow stirring plate 33 is blown into the inner tube 19 through the first steam outlet 32 ​​to fully contact with the ammonia nitrogen wastewater, and at the same time the heating tube 25 heats the ammonia nitrogen wastewater inside the inner tube 19, the heating temperature is 30℃~35℃, the ammonia nitrogen in the ammonia nitrogen wastewater is removed for the first time by the stripping method, and the generated gas is discharged through the gas pipeline 4.

[0067] The method in which the driving mechanism 12 drives the second gear ring 31 to rotate is as follows: the output shaft of the third motor 1208 drives the second rotating shaft 1206 to rotate, the second transmission wheel 1207 on the second rotating shaft 1206 drives the first transmission wheel 1203 to rotate through the transmission belt 1209, the first transmission wheel 1203 drives the first rotating shaft 1204 to rotate, the first rotating shaft 1204 drives the first bevel gear 1210 to rotate, the first bevel gear 1210 is meshed with the second bevel gear 1211 for transmission, the second bevel gear 1211 drives the third rotating shaft 1212 and the third gear 1214 to rotate, the third gear 1214 drives the first gear 1201 to rotate by meshing with the first gear 1201, the first gear 1201 drives the fifth gear 1218 to rotate through the fifth rotating shaft 1216, and the fifth gear 1218 drives the second gear ring 31 to rotate by meshing with the second gear ring 31.

[0068] S3, after the treatment of the ammonia nitrogen wastewater inside the inner cylinder 19 is completed, the liquid outlet mechanism 11 draws the ammonia nitrogen wastewater inside the inner cylinder 19 into the outer cylinder 5, and the steam generated by the steam generator 1 passes through the annular cavity 23 through the steam pipe 2 in turn and enters the multiple cavity rods 37, the driving mechanism 12 drives the first gear ring 20 to rotate, the first gear ring 20 drives the first rotating ring 21 to rotate, the first rotating ring 21 drives the annular cavity 23, the multiple first stirring plates 22, and the multiple cavity rods 37 to rotate, the multiple first stirring plates 22 stir the ammonia nitrogen wastewater in the outer cylinder 5, the steam in each cavity rod 37 is blown into the outer cylinder 5 through the multiple second steam outlets 38 to fully contact with the ammonia nitrogen wastewater, the ammonia nitrogen in the ammonia nitrogen wastewater is removed for the second time by the stripping method, and the generated gas is discharged through the gas pipeline 4.

[0069] The method by which the driving mechanism 12 drives the first gear ring 20 to rotate is: the third gear 1214 drives the second gear 1213 to rotate by meshing with the second gear 1213, the second gear 1213 drives the fourth shaft 1215 to rotate, the fourth shaft 1215 drives the fourth gear 1217 to rotate, and the fourth gear 1217 drives the first gear ring 20 to rotate by meshing with the first gear ring 20.

[0070] The method by which the liquid outlet mechanism 11 draws the ammonia nitrogen wastewater inside the inner cylinder 19 into the outer cylinder 5 is as follows: the output shaft of the second motor 1103 drives the fourth connecting disk 1102 to rotate, and the fourth connecting disk 1102 drives the third connecting disk 1101 to rotate through the second sliding rod 1111, and the second sliding rod 1111 slides in the second sliding hole 1112 in the horizontal direction, thereby driving the second piston 1113 to slide in the second water pumping cylinder 1104 in the vertical direction, and the ammonia nitrogen wastewater inside the inner cylinder 19 drives the first rotating member 1108 to rotate on the second connecting disk 1007, and the ammonia nitrogen wastewater passes through the first through hole 1114 of the first rotating member 1108, the second through hole 1115 of the first connecting member 1107, the one-way flow third one-way valve assembly 1106, the second connecting pipe 1105, the second water pumping cylinder 1104, the second liquid outlet pipe 1109, and the one-way flow fourth one-way valve assembly 1110 into the outer cylinder 5 in sequence.

[0071] S4, the treated ammonia nitrogen wastewater inside the outer cylinder 5 drives the second rotating member 26 to rotate on the second connecting member 28, and the ammonia nitrogen wastewater sequentially passes through the fourth through hole 29 of the second rotating member 26 and the third through hole 27 of the second connecting member 28 into the first liquid outlet pipe 6 to flow out, the impurity removal mechanism 39 drives the rotating disk 43 to rotate, the outlet end at the bottom of the inner cylinder 19 is connected to the second feed port 42 of the rotating disk 43, the second feed port 42 is connected to the third feed port 45 at the top of the sedimentation cylinder 7, and the impurities inside the inner cylinder 19 are sequentially discharged through the outlet end of the inner cylinder 19, the third through hole 29 of the second rotating member 26 and the third through hole 27 of the second connecting member 28. The second feed port 42 and the third feed port 45 lead into the interior of the sedimentation cylinder 7, and the multiple outlet ends in the circumferential direction of the inner part of the outer cylinder 5 are respectively interconnected with the corresponding first feed port 41, and the first feed port 41 is interconnected with the fourth feed port 46 of the sedimentation cylinder 7. The impurities inside the outer cylinder 5 successively enter the interior of the sedimentation cylinder 7 through the outlet end at the bottom of the outer cylinder 5, the first feed port 41, and the fourth feed port 46. The vibrating rod level switch 44 detects the impurities inside the sedimentation cylinder 7, and the impurity removal mechanism 39 opens the discharge door 9 of the sedimentation cylinder 7 and discharges the impurities inside the sedimentation cylinder 7 at the same time.

[0072] The method in which the impurity removing mechanism 39 drives the rotating disk 43 to rotate is as follows: the output shaft of the fifth motor 3901 drives the sixth gear 3902 to rotate, and the sixth gear 3902 drives the rotating disk 43 to rotate inside the sedimentation cylinder 7 by meshing with the rack 3906 .

[0073] The method by which the impurity removal mechanism 39 opens the discharge door 9 of the sedimentation drum 7 and discharges the impurities inside the sedimentation drum 7 is as follows: the rotating disk 43 drives the discharge door 9 to rotate, and the discharge door 9 is separated from the discharge port 40 of the sedimentation drum 7, and the output shaft of the sixth motor 3905 drives the seventh gear 3908 to rotate, and the seventh gear 3908 drives the third gear ring 3907 to rotate by meshing with the third gear ring 3907, and the third gear ring 3907 drives the third rotating ring 3909 to rotate, and the third rotating ring 3909 drives the scraper 3910 to rotate inside the sedimentation drum 7, and the scraper 3910 removes the impurities inside the sedimentation drum 7 through the discharge port 40 of the sedimentation drum 7.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A high-concentration ammonia nitrogen wastewater recovery and treatment device, characterized in that: An outer cylinder (5) is arranged at the top of the sedimentation cylinder (7), an inner cylinder (19) is arranged inside the outer cylinder (5), an upper cover (3) is arranged at the top of the outer cylinder (5), a liquid inlet pipe (8) for introducing ammonia nitrogen wastewater is arranged on the upper cover (3), and a liquid inlet mechanism (10) for pumping ammonia nitrogen wastewater in the liquid inlet pipe (8) into the inner cylinder (19) is arranged on the upper cover (3), an alkali liquid cylinder (14) for storing alkali liquid is arranged at the top of the outer cylinder (5), an alkali liquid inlet (15) which is interconnected with the inner cylinder (19) and the alkali liquid cylinder (14) is processed at the top of the outer cylinder (5), a bottom support cylinder (24) is arranged at the bottom of the inner cylinder (19), and a first support cylinder (24) is rotatably installed inside the bottom support cylinder (24). The second rotating ring (36) has a second gear ring (31) connected to the driving mechanism (12) arranged on its inner circumference. The interior of the second rotating ring (36) is fixedly connected to the connecting cavity (34) via a plurality of connecting rods (35). A steam generator (1) is arranged outside the outer cylinder (5). The steam generated by the steam generator (1) is communicated with the connecting cavity (34) via a steam pipe (2). A plurality of hollow stirring plates (33) for stirring the ammonia nitrogen wastewater and alkali solution inside the inner cylinder (19) are evenly arranged in the circumferential direction between the connecting cavity (34) and the second rotating ring (36). Each hollow stirring plate (33) is connected to the connecting cavity (34) and the second rotating ring (36). (34) are interconnected, each hollow stirring plate (33) is evenly processed with a plurality of first steam outlets (32), the steam generated by the plurality of first steam outlets (32) removes ammonia nitrogen from the ammonia nitrogen wastewater in the inner cylinder (19), the upper cover (3) is provided with a liquid outlet mechanism (11) for pumping the treated ammonia nitrogen wastewater in the inner cylinder (19) into the outer cylinder (5), the outer circumference of the inner cylinder (19) is rotatably mounted with a first rotating ring (21) located inside the outer cylinder (5), the outer circumference of the first rotating ring (21) is provided with a first gear ring (20) connected to the driving mechanism (12), and the circumferential direction of the first rotating ring (21) is provided with a plurality of An annular cavity (23) is provided with first stirring plates (22) uniformly arranged in the circumferential direction of the annular cavity (23) for stirring the ammonia nitrogen wastewater inside the outer cylinder (5); a cavity rod (37) interconnected with the annular cavity (23) is provided at the bottom of each first stirring plate (22); a plurality of second steam outlets (38) are uniformly processed on each cavity rod (37); steam generated by the plurality of second steam outlets (38) removes ammonia nitrogen from the ammonia nitrogen wastewater in the outer cylinder (5); a first liquid outlet pipe (6) interconnected with the outer cylinder (5) is provided on the outer cylinder (5); and a gas pipeline (4) is provided on the upper cover (3) and is interconnected with the inside of the outer cylinder (5) and the inner cylinder (19).

2. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The alkali liquid cylinder (14) is provided with a fourth motor (13) for driving the sixth rotating shaft (16) to rotate. A connecting plate (18) is provided at the bottom of the alkali liquid cylinder (14). The connecting plate (18) is evenly provided with paddles (17) in the circumferential direction thereof for allowing the alkali liquid in the alkali liquid cylinder (14) to enter the interior of the inner cylinder (19) through the alkali liquid inlet (15).

3. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The bottom support cylinder (24) is evenly provided with a plurality of heating tubes (25) in the circumferential direction.

4. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The water inlet of the first liquid outlet pipe (6) is provided with a second connecting member (28), the second connecting member (28) is processed in a circumferential direction with a third through hole (27) interconnected with the interior of the inner cylinder (19), a second rotating member (26) is rotatably mounted on the outer circumference of the second connecting member (28), and the second rotating member (26) is uniformly processed in a circumferential direction with fourth through holes (29) interconnected with the third through hole (27).

5. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The liquid inlet mechanism (10) comprises: a first water pumping cylinder (1004) is arranged on the outer cylinder (5), a second support frame (1008) is arranged on the upper cover (3), a first motor (1005) for driving the first connecting disk (1006) to rotate is arranged on the second support frame (1008), the first connecting disk (1006) is eccentrically connected to the second connecting disk (1007) via a first sliding rod (1009), and a first piston (1011) is slidably connected to the inside of the first water pumping cylinder (1004) in a vertical direction. A first sliding hole (1010) is machined on the top of the first piston (1011) and is slidably connected to the first sliding rod (1009) in the horizontal direction; the liquid inlet pipe (8) is unidirectionally connected to the inlet end of the first pumping cylinder (1004) through the second one-way valve assembly (1003); the outlet end of the first pumping cylinder (1004) is unidirectionally connected to the first one-way valve assembly (1001) through the first connecting pipe (1002); and the first one-way valve assembly (1001) is connected to the inside of the inner cylinder (19); The structure of the first one-way valve assembly (1001) is the same as that of the second one-way valve assembly (1003). The first one-way valve assembly (1001) is as follows: a first support frame (100105) is arranged at the bottom of the valve housing (100101), a sliding rod (100103) is slidably connected to the inside of the first support frame (100105) along a vertical direction, a cone (100102) is arranged on the top of the sliding rod (100103), a spring (100104) is arranged on the sliding rod (100103), one end of the spring (100104) is fixedly connected to the cone (100102), and the other end of the spring (100104) is fixedly connected to the first support frame (100105).

6. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The liquid discharge mechanism (11) comprises: a second water pumping cylinder (1104) is arranged on the outer cylinder (5); a second motor (1103) for driving a fourth connection disk (1102) to rotate is arranged on the second support frame (1008); the fourth connection disk (1102) is eccentrically connected to the third connection disk (1101) via a second sliding rod (1111); a second piston (1113) is slidably connected in a vertical direction in the second water pumping cylinder (1104); a second sliding hole (1112) is processed on the top of the second piston (1113) and is slidably connected to the second sliding rod (1111) in a horizontal direction; the inlet end of the second water pumping cylinder (1104) is connected to a second liquid discharge pipe (1109); the second liquid discharge pipe (1109) is connected to the inside of the outer cylinder (5) in a one-way manner via a fourth one-way valve assembly (1110); The outlet end of the water pump cylinder (1104) is interconnected with the second communication pipe (1105), and the second communication pipe (1105) is interconnected with the interior of the inner cylinder (19) in one direction through the third one-way valve assembly (1106). A first connecting member (1107) is provided at the bottom of the third one-way valve assembly (1106), and the first connecting member (1107) is uniformly processed with second through holes (1115) in the circumferential direction. The first connecting member (1107) is rotatably connected to the first rotating member (1108) in the circumferential direction, and the first rotating member (1108) is uniformly processed with first through holes (1114) in the circumferential direction that are interconnected with the second through holes (1115). The structures of the fourth one-way valve assembly (1110) and the third one-way valve assembly (1106) are the same as the structure of the first one-way valve assembly (1001).

7. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The driving mechanism (12) comprises: a fourth support frame (1205) is arranged on the upper cover (3); a third motor (1208) for driving the second rotating shaft (1206) to rotate is arranged on the fourth support frame (1205); a second transmission wheel (1207) is arranged on the second rotating shaft (1206); a third support frame (1202) is arranged on the upper cover (3); a first rotating shaft (1204) is rotatably mounted on the third support frame (1202); a first transmission wheel (1203) is arranged on the first rotating shaft (1204); the second transmission wheel (1207) is transmission-connected to the first transmission wheel (1203) via a transmission belt (1209); a first bevel gear (1210) is arranged at one end of the first rotating shaft (1204); a third rotating shaft (1212) is rotatably mounted on the third support frame (1202); A second bevel gear (1211) meshing with the first bevel gear (1210) is arranged at the top of the third rotating shaft (1212), a third gear (1214) is arranged at the bottom of the third rotating shaft (1212), a fourth rotating shaft (1215) and a fifth rotating shaft (1216) are rotatably mounted on the third support frame (1202), a first gear (1201) meshing with the third gear (1214) is arranged at the top of the fifth rotating shaft (1216), a fifth gear (1218) meshing with the second gear ring (31) is arranged at the bottom of the fifth rotating shaft (1216), a second gear (1213) meshing with the third gear (1214) is arranged at the top of the fourth rotating shaft (1215), and a fourth gear (1217) meshing with the first gear ring (20) is arranged at the bottom of the fourth rotating shaft (1215).

8. The high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 1 is characterized in that: The sedimentation cylinder (7) is provided with a rotating disk (43) for rotation inside. A second feed port (42) is formed on the rotating disk (43) and is interconnected with the bottom outlet end of the inner cylinder (19). A third feed port (45) is formed on the top of the sedimentation cylinder (7) and is interconnected with the second feed port (42). A first feed port (41) is uniformly formed on the rotating disk (43) in the circumferential direction and is interconnected with the bottom outlet end of the outer cylinder (5). A fourth feed port (46) is uniformly formed on the top of the sedimentation cylinder (7) in the circumferential direction and is interconnected with the first feed port (41). An impurity removal mechanism (39) for removing impurities in ammonia nitrogen wastewater is provided inside the sedimentation cylinder (7). A vibrating rod material level switch (44) for detecting impurities inside the sedimentation cylinder (7) is provided inside the sedimentation cylinder (7). A discharge port (40) is formed on one side of the sedimentation cylinder (7). A discharge door (9) is slidably connected to the discharge port (40). The discharge door (9) is fixedly connected to the impurity removal mechanism (39). The impurity removal mechanism (39) comprises: a fifth motor (3901) for driving a sixth gear (3902) to rotate is arranged on the sedimentation cylinder (7); a rack (3906) for meshing and transmitting with the sixth gear (3902) is arranged on the rotating disk (43); a guide rod (3904) for sliding connection with a third sliding hole (3903) on the rotating disk (43) is arranged on the sedimentation cylinder (7); the rotating disk (43) is fixedly connected to the discharge door (9); a sixth motor (3905) for driving a seventh gear (3908) to rotate is arranged on the sedimentation cylinder (7); a third rotating ring (3909) is rotatably installed inside the sedimentation cylinder (7); a third gear ring (3907) for meshing and transmitting with the seventh gear (3908) is arranged on the third rotating ring (3909); and scrapers (3910) for scraping impurities inside the sedimentation cylinder (7) are evenly arranged in the circumferential direction of the third rotating ring (3909).

9. A recycling process using the high-concentration ammonia nitrogen wastewater recycling treatment device according to claim 1, characterized in that: The following steps are involved: S1, the liquid inlet mechanism (10) draws ammonia nitrogen wastewater into the inner cylinder (19) through the liquid inlet pipe (8), alkali solution is added to the alkali solution cylinder (14), the output shaft of the fourth motor (13) drives the dial plate (17) on the connecting plate (18) to rotate through the sixth rotating shaft (16), the dial plate (17) drives the alkali solution in the alkali solution cylinder (14) into the inner cylinder (19) through the alkali solution inlet (15), the pH value inside the inner cylinder (19) is detected by the pH value tester (30), and the pH value of the ammonia nitrogen wastewater inside the inner cylinder (19) is adjusted to 10-11; S2, the steam generated by the steam generator (1) passes through the steam pipe (2) and sequentially passes through the connecting cavity (34) into the plurality of hollow stirring plates (33), the driving mechanism (12) drives the second gear ring (31) to rotate, the second gear ring (31) drives the second rotating ring (36) to rotate, the second rotating ring (36) drives the connecting cavity (34) and the plurality of hollow stirring plates (33) to rotate through the connecting rod (35), the plurality of hollow stirring plates (33) stir the ammonia nitrogen wastewater inside the inner cylinder (19), the steam in each hollow stirring plate (33) is blown into the inner cylinder (19) through the first steam outlet (32) to fully contact with the ammonia nitrogen wastewater, and at the same time the heating pipe (25) heats the ammonia nitrogen wastewater inside the inner cylinder (19), the ammonia nitrogen in the ammonia nitrogen wastewater is removed for the first time by the stripping method, and the generated gas is discharged through the gas pipe (4); S3, after the treatment of the ammonia nitrogen wastewater in the inner cylinder (19) is completed, the liquid discharge mechanism (11) draws the ammonia nitrogen wastewater in the inner cylinder (19) into the outer cylinder (5), the steam generated by the steam generator (1) passes through the steam pipe (2) and sequentially passes through the annular cavity (23) into the plurality of cavity rods (37), the driving mechanism (12) drives the first gear ring (20) to rotate, the first gear ring (20) drives the first rotating ring (21) to rotate, the first rotating ring (21) drives the annular cavity (23), the plurality of first stirring plates (22), and the plurality of cavity rods (37) to rotate, the plurality of first stirring plates (22) stir the ammonia nitrogen wastewater in the outer cylinder (5), the steam in each cavity rod (37) is blown into the outer cylinder (5) through the plurality of second steam outlets (38) to fully contact with the ammonia nitrogen wastewater, the ammonia nitrogen in the ammonia nitrogen wastewater is removed for a second time by the stripping method, and the generated gas is discharged through the gas pipe (4); S4, the treated ammonia nitrogen wastewater in the outer cylinder (5) drives the second rotating member (26) to rotate on the second connecting member (28), and the ammonia nitrogen wastewater sequentially passes through the fourth through hole (29) of the second rotating member (26) and the third through hole (27) of the second connecting member (28) to enter the first liquid outlet pipe (6) and flow out, the impurity removal mechanism (39) drives the rotating disk (43) to rotate, the outlet end at the bottom of the inner cylinder (19) is connected to the second feed port (42) of the rotating disk (43), the second feed port (42) is connected to the third feed port (45) at the top of the sedimentation cylinder (7), and the impurities in the inner cylinder (19) are sequentially discharged through the inner cylinder (19). The outlet end of the cylinder (19), the second feed port (42), and the third feed port (45) enter the interior of the sedimentation cylinder (7); the multiple outlet ends in the circumferential direction of the interior of the outer cylinder (5) are respectively interconnected with the corresponding first feed ports (41); the first feed port (41) is interconnected with the fourth feed port (46) of the sedimentation cylinder (7); impurities in the interior of the outer cylinder (5) enter the interior of the sedimentation cylinder (7) through the outlet end at the bottom of the outer cylinder (5), the first feed port (41), and the fourth feed port (46) in sequence; the impurity removal mechanism (39) opens the discharge door (9) of the sedimentation cylinder (7) and discharges the impurities in the interior of the sedimentation cylinder (7) at the same time.

10. The recovery process of the high-concentration ammonia nitrogen wastewater recovery and treatment device according to claim 9, characterized in that: The method by which the liquid inlet mechanism (10) in S1 draws ammonia nitrogen wastewater into the inner cylinder (19) through the liquid inlet pipe (8) is as follows: the ammonia nitrogen wastewater enters the liquid inlet pipe (8), the output shaft of the first motor (1005) drives the first connecting disk (1006) to rotate, the first connecting disk (1006) drives the second connecting disk (1007) to rotate through the first sliding rod (1009), the first sliding rod (1009) slides in the horizontal direction in the first sliding hole (1010), thereby driving the first piston (1011) to slide in the vertical direction in the first pumping cylinder (1004), and the ammonia nitrogen wastewater in the liquid inlet pipe (8) flows unidirectionally into the first pumping cylinder (1004), the first connecting pipe (1002), and the first unidirectional valve assembly (1001) in sequence into the inner cylinder (19); The method by which the driving mechanism (12) in S2 drives the second gear ring (31) to rotate is as follows: the output shaft of the third motor (1208) drives the second rotating shaft (1206) to rotate, the second transmission wheel (1207) on the second rotating shaft (1206) drives the first transmission wheel (1203) to rotate via the transmission belt (1209), the first transmission wheel (1203) drives the first rotating shaft (1204) to rotate, the first rotating shaft (1204) drives the first bevel gear (1210) to rotate, and the first bevel gear (1210) 0) meshes with the second bevel gear (1211) to drive, the second bevel gear (1211) drives the third rotating shaft (1212) and the third gear (1214) to rotate, the third gear (1214) drives the first gear (1201) to rotate by meshing with the first gear (1201), the first gear (1201) drives the fifth gear (1218) to rotate via the fifth rotating shaft (1216), and the fifth gear (1218) drives the second gear ring (31) to rotate by meshing with the second gear ring (31); The method for the driving mechanism (12) in S3 to drive the first gear ring (20) to rotate is as follows: the third gear (1214) drives the second gear (1213) to rotate by meshing with the second gear (1213), the second gear (1213) drives the fourth rotating shaft (1215) to rotate, the fourth rotating shaft (1215) drives the fourth gear (1217) to rotate, and the fourth gear (1217) drives the first gear ring (20) to rotate by meshing with the first gear ring (20); The method in which the liquid discharge mechanism (11) in S3 pumps the ammonia nitrogen wastewater inside the inner cylinder (19) into the outer cylinder (5) is as follows: the output shaft of the second motor (1103) drives the fourth connection disk (1102) to rotate, the fourth connection disk (1102) drives the third connection disk (1101) to rotate via the second slide bar (1111), the second slide bar (1111) slides in the second slide hole (1112) in the horizontal direction, thereby driving the second piston (1113) to slide in the second pumping cylinder (1104) in the vertical direction, and the inner The ammonia nitrogen wastewater inside the cylinder (19) drives the first rotating member (1108) to rotate on the second connecting disk (1007), and the ammonia nitrogen wastewater sequentially passes through the first through hole (1114) of the first rotating member (1108), the second through hole (1115) of the first connecting member (1107), the one-way flow third one-way valve assembly (1106), the second connecting pipe (1105), the second pumping cylinder (1104), the second liquid outlet pipe (1109), and the one-way flow fourth one-way valve assembly (1110) into the interior of the outer cylinder (5); The method for driving the rotating disk (43) to rotate by the impurity removal mechanism (39) in S4 is as follows: the output shaft of the fifth motor (3901) drives the sixth gear (3902) to rotate, and the sixth gear (3902) drives the rotating disk (43) to rotate inside the sedimentation cylinder (7) by meshing with the rack (3906); The impurity removal mechanism (39) in S4 opens the discharge door (9) of the sedimentation barrel (7) and discharges the impurities inside the sedimentation barrel (7) in the following manner: the rotating disk (43) drives the discharge door (9) to rotate, the discharge door (9) is separated from the discharge port (40) of the sedimentation barrel (7), the output shaft of the sixth motor (3905) drives the seventh gear (3908) to rotate, the seventh gear (3908) drives the third gear ring (3907) to rotate by meshing with the third gear ring (3907), the third gear ring (3907) drives the third rotating ring (3909) to rotate, the third rotating ring (3909) drives the scraper (3910) to rotate inside the sedimentation barrel (7), and the scraper (3910) removes the impurities inside the sedimentation barrel (7) through the discharge port (40) of the sedimentation barrel (7).

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