Comprehensive treatment equipment for ammonia-containing wastewater

Abstract

The invention discloses comprehensive treatment equipment for ammonia-containing wastewater, and relates to the field of ammonia-containing wastewater treatment.The comprehensive treatment equipment comprises a fixing base, a triangular fixing frame is fixedly mounted at the top of the fixing base, an ammonia-containing wastewater treatment kettle is fixedly mounted on the inner side of the triangular fixing frame, and a feeding opening is fixedly communicated with the top of the ammonia-containing wastewater treatment kettle; through the arrangement of the component for quantitatively adjusting the pH value, firstly, the problem that the concentration of local hydroxyl ions suddenly rises due to the fact that a large amount of sodium hydroxide solution is added at a time is effectively avoided, so that the phenomenon that a large amount of ammonia gas escapes instantaneously due to the fact that the acid-base neutralization reaction is too violent is prevented; the impact on the ammonia-containing wastewater treatment kettle caused by excessively concentrated heat release of local reaction can be avoided, and meanwhile, the situation that the whole mixed solution is strongly alkaline due to the fact that excessive sodium hydroxide solution is added at a time is avoided; and a relatively stable pH value range can be always maintained in the ammonia-containing wastewater treatment kettle.

Description

Technical Field

[0001] The present invention relates to the field of ammonia-containing wastewater treatment, and in particular to a comprehensive treatment device for ammonia-containing wastewater. Background Art

[0002] In the process of treating high-concentration ammonia-containing wastewater, the ammonia in the ammonia-containing wastewater mainly exists in the form of ammonium ions and free ammonia. The ratio of the two is determined by the pH value of the solution. Under acidic conditions, ammonia nitrogen mainly exists in the form of ammonium ions, which are chemically stable and difficult to separate by evaporation. Under alkaline conditions, ammonium ions will be converted into ammonia molecules, and the volatility of free ammonia will be significantly enhanced. Therefore, if the purpose of heating is to remove ammonia nitrogen, an alkaline solution must be added to the wastewater to adjust the pH value to make it weakly alkaline. The ammonia nitrogen exists in the form of free ammonia, and then the ammonia molecules are heated by a tubular evaporator to escape with the steam, thereby realizing the separation of ammonia nitrogen and wastewater, thereby deammonifying the ammonia-containing wastewater.

[0003] In traditional ammonia-containing wastewater treatment equipment, the one-time addition of a large amount of sodium hydroxide solution causes a sudden increase in the local hydroxide ion concentration, resulting in an overly intense acid-base neutralization reaction and the instantaneous release of a large amount of ammonia gas. It also causes the local reaction heat release to be too concentrated, causing an impact on the ammonia-containing wastewater treatment kettle. At the same time, the one-time addition of too much sodium hydroxide solution causes the overall mixed liquid to be strongly alkaline.

[0004] The Chinese patent application number 202120709869.9 discloses "a device for treating wastewater containing COD and ammonia nitrogen", which includes the operation of a stirring motor to drive a driving screw to rotate. Since the first blade and the second blade are fixedly connected to the driving screw, the first blade and the second blade are driven to rotate together. Since the first blade and the second blade are located inside the reaction tank, the wastewater in the reaction tank is rotated, which further makes the contact between the wastewater and the agent more complete, thereby making the reaction between the wastewater and the agent more complete, and making the treatment of the wastewater more thorough.

[0005] Although this equipment can make the reaction between wastewater and chemicals more complete, thereby making the wastewater treatment more thorough, it is necessary to add wastewater and chemicals outside the equipment. It is also impossible to control the chemical reaction after the two are mixed with each other, and it is impossible to determine whether the optimal value of acid-base neutralization is reached.

[0006] To this end, a comprehensive treatment device for ammonia-containing wastewater is proposed. Summary of the Invention

[0007] The object of the present invention is to provide a comprehensive treatment device for ammonia-containing wastewater to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a device for comprehensive treatment of ammonia-containing wastewater, comprising a fixed base, a triangular fixing frame fixedly installed on the top of the fixed base, an ammonia-containing wastewater treatment kettle fixedly installed on the inner side of the triangular fixing frame, the top of the ammonia-containing wastewater treatment kettle fixedly connected to a feeding port, a quantitative pH value adjustment component is provided on the top of the feeding port, the quantitative pH value adjustment component comprises a double-layer fixing frame, the double-layer fixing frame is fixedly connected to the top of the feeding port, the double-layer fixing frame is arranged into two layers, the upper layer lower surface of the double-layer fixing frame is rotatably connected to a rotating disk, the upper layer lower surface of the double-layer fixing frame is fixedly connected to a first rotating handle, the upper surface of the rotating disk is arranged with a plurality of first sector blocks in a ring array, the number of the plurality of first sector blocks is set to six, and a residual arc block is fixedly installed on the top of each of the first sector blocks;

[0009] A liquid level opening and closing component is provided on the outside of the ammonia-containing wastewater treatment kettle. The liquid level opening and closing component includes a transparent circular tube. The upper and lower ends of the transparent circular tube are fixedly installed on the outer wall of the ammonia-containing wastewater treatment kettle.

[0010] Furthermore, a first fixed disc frame is fixedly installed on the outer top of the ammonia-containing wastewater treatment kettle, the top of the first fixed disc frame is fixedly connected to a stepper motor, the output shaft end of the stepper motor is fixedly connected to a first rotating column, and the top of the ammonia-containing wastewater treatment kettle is fixedly connected to a wastewater inlet.

[0011] Furthermore, the quantitative pH value adjustment component also includes a first synchronous wheel, which is rotatably connected to the first rotating handle at one end away from the connection between the double-layer fixed frame and the first rotating handle, a second synchronous wheel is fixedly installed on the outer side of the first rotating column, and a synchronous belt is transmission-connected between the second synchronous wheel and the first synchronous wheel, the second rotating column is fixedly installed on the bottom of the first synchronous wheel, the second fan-shaped block is fixedly installed on the bottom of the second rotating column, the top of the second rotating column is fixedly connected to the second rotating handle, the bottom of the rotating disc is fixedly connected to the storage box, the outer side of the storage box is fixedly connected to the alkaline solution injection port, the top of the storage box is fixedly connected to the delivery nozzle, the top of the delivery port is fixedly connected to the second fixed disc frame, the top of the second fixed disc frame is fixedly installed with an annular track, two circular holes are opened inside the annular track, and the two circular holes are fixedly connected to a Y-shaped connecting pipe, and the outer wall of the ammonia-containing wastewater treatment kettle is penetrated and fixedly installed with a pH display.

[0012] Furthermore, a tubular evaporator is fixedly installed on the top of the fixed base, an output pipe is fixedly connected to the bottom of the ammonia-containing wastewater treatment kettle, and a double-layer stirring rod is fixedly installed on the bottom of the first rotating column.

[0013] Furthermore, the liquid level opening and closing assembly also includes a connecting pipe, which is fixedly connected to the inner cavity of the ammonia-containing wastewater treatment kettle. A floating ball is slidably connected to the inside of the transparent circular tube. A touch switch is fixedly installed on the top of the transparent circular tube, and a loudspeaker is fixedly installed on the outer wall of the ammonia-containing wastewater treatment kettle.

[0014] Furthermore, the output shaft end of the stepper motor is rotatably connected to the middle of the first fixed disc frame, and the first rotating column is rotatably connected to the top of the ammonia-containing wastewater treatment kettle.

[0015] Furthermore, the inner arc surface of each residual arc block is adapted to the outer arc surface of the second sector-shaped block, and the width of the annular track is adapted to the size of the delivery nozzle.

[0016] Furthermore, the inner diameter of the delivery nozzle is adapted to the inner diameters of the two circular holes.

[0017] Furthermore, one end of the output pipe away from the ammonia-containing wastewater treatment kettle is communicated with the tubular evaporator.

[0018] Furthermore, the connecting pipe is connected to one end of the transparent circular tube away from the outside of the ammonia-containing wastewater treatment kettle, and the touch switch controls the opening and closing of the broadcaster through an external control panel. The touch switch is located on the movement path of the floating ball.

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

[0020] By setting up the quantitative pH value adjustment component, the problem of a sudden increase in local hydroxide ion concentration caused by a large amount of sodium hydroxide solution added at one time is effectively avoided, thereby preventing the instantaneous large amount of ammonia gas leakage caused by the excessive acid-base neutralization reaction. It can also avoid the impact of excessive heat release from the local reaction on the ammonia-containing wastewater treatment reactor, and at the same time avoid the strong alkalinity of the overall mixed solution caused by the addition of too much sodium hydroxide solution at one time.

[0021] Secondly, the synchronous dynamic addition of ammonia-containing wastewater and sodium hydroxide solution can maintain a relatively stable pH range in the ammonia-containing wastewater treatment kettle, ensuring that ammonium ions and hydroxide ions can continuously contact and react in proportion. At the same time, the feeding ratio of the two materials can be flexibly adjusted according to the real-time reaction situation, ensuring that the conversion efficiency of ammonium ions is stable at a high level and can adapt to fluctuations in the concentration of ammonia-containing wastewater;

[0022] Finally, the inside of the ammonia-containing wastewater treatment kettle is stirred at a uniform speed by a double-layer stirring rod, accompanied by the simultaneous addition of ammonia-containing wastewater and sodium hydroxide solution. This not only significantly promotes the uniform mixing of ammonia-containing wastewater and sodium hydroxide solution, but also eliminates the concentration difference formed by local aggregation, so that hydroxide ions can fully contact with more ammonium ions and undergo neutralization reaction, reducing the reaction dead angle, not only improving the overall reaction rate and neutralization uniformity, but also helping to shorten the time for the reaction to reach equilibrium, increasing the wastewater treatment volume per unit time, and at the same time avoiding the residual of local unreacted ammonium ions, ensuring the stability of the water quality inside the subsequent tubular evaporator.

[0023] The setting of the liquid level opening and closing component can avoid the occurrence of overload or too little mixed liquid in the ammonia-containing wastewater treatment kettle. On the one hand, it can accurately control the liquid level range in the ammonia-containing wastewater treatment kettle to ensure that the sodium hydroxide solution and the ammonia-containing wastewater are always in a liquid volume range suitable for full reaction. It not only avoids the problem of insufficient contact area between the two when the liquid level is too low, resulting in incomplete local neutralization and reduced ammonium ion conversion efficiency, but also prevents the stratification of the two caused by the difficulty in uniform stirring when the liquid level is too high, thereby ensuring the uniformity and efficiency of the neutralization reaction.

[0024] On the other hand, when the liquid level rises abnormally close to the overflow threshold, the floating ball touch alarm will promptly remind the staff to shut off the feed to prevent the leakage of strong alkaline solution and ammonia-containing materials, which may cause equipment corrosion, personal injury, and environmental pollution caused by ammonia escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the relationship between the output pipe and the tubular evaporator of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the first rotating handle and the first synchronous wheel of the present invention;

[0028] Figure 4 For the present invention Figure 3 A in the middle is an enlarged schematic diagram;

[0029] Figure 5 This is a schematic diagram of the structure of the quantitative pH adjustment component of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0031] Figure 7 This is a three-dimensional schematic diagram of the positional relationship structure of the first sector block, the residual arc block and the second sector block of the present invention;

[0032] Figure 8 This is a three-dimensional schematic diagram of the storage box and alkaline solution injection port structure of the present invention;

[0033] Figure 9 This is a schematic cross-sectional view of the storage box structure of the present invention;

[0034] Figure 10 This is a three-dimensional schematic diagram of the relationship between the circular hole and the Y-shaped connecting pipe of the present invention;

[0035] Figure 11 This is a schematic cross-sectional view of the structure of the ammonia-containing wastewater treatment kettle of the present invention;

[0036] Figure 12 This is a three-dimensional schematic diagram of the liquid level opening and closing component structure of the present invention;

[0037] Figure 13 For the present invention Figure 12 Enlarged schematic diagram of the structure at point C in the middle.

[0038] The numbers in the figure represent:

[0039] 1. Fixed base; 2. Triangular fixing frame; 3. Ammonia wastewater treatment kettle; 4. First fixed disc frame; 5. Stepper motor; 6. First rotating column; 7. Wastewater inlet; 8. Wastewater inlet;

[0040] 9. Quantitative pH adjustment component; 901. Double-layer fixed frame; 902. Rotating disc; 903. First rotating handle; 904. First synchronous pulley; 905. Second synchronous pulley; 906. Synchronous belt; 907. First sector block; 908. Residual arc block; 909. Second rotating column; 910. Second sector block; 911. Second rotating handle; 912. Storage box; 913. Alkaline solution injection port; 914. Dosing nozzle; 915. Second fixed disc frame; 916. Annular track; 917. Circular hole; 918. Y-shaped connecting pipe; 919. pH display;

[0041] 10. Double-layer stirring rod; 11. Output pipe; 12. Tubular evaporator;

[0042] 13. Liquid level opening and closing assembly; 1301. Transparent round tube; 1302. Connecting tube; 1303. Floating ball; 1304. Touch switch; 1305. Announcer. DETAILED DESCRIPTION

[0043] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] See also Figures 1 to 13 , which is an embodiment of the present invention: a comprehensive treatment device for ammonia-containing wastewater, comprising a fixed base 1, a triangular fixing frame 2 fixedly installed on the top of the fixed base 1, and an ammonia-containing wastewater treatment kettle 3 fixedly installed on the inner side of the triangular fixing frame 2. In the process of treating high-concentration ammonia-containing wastewater, ammonia in the ammonia-containing wastewater mainly exists in the form of ammonium ions and free ammonia, and the ratio of the two is determined by the pH value of the solution. Under acidic conditions, ammonia nitrogen mainly exists in the form of ammonium root ions, which are chemically stable and difficult to separate by evaporation. Under alkaline conditions, ammonium root ions will be converted into ammonia molecules, and the volatility of free ammonia is significantly enhanced. Therefore, if the purpose of heating is to remove ammonia nitrogen, an alkaline solution must be added to the wastewater to adjust the pH value to make it weakly alkaline. The ammonia nitrogen exists in the form of free ammonia, and then the ammonia molecules are heated by the tubular evaporator 12 to escape with the steam, thereby realizing the separation of ammonia nitrogen and wastewater, thereby removing ammonia nitrogen. The wastewater is subjected to deammonification treatment. The top of the ammonia-containing wastewater treatment kettle 3 is fixedly connected to a feed port 8. A quantitative pH value adjustment component 9 is provided on the top of the feed port 8. The quantitative pH value adjustment component 9 includes a double-layer fixed frame 901. The double-layer fixed frame 901 is fixedly connected to the top of the feed port 8. The double-layer fixed frame 901 is arranged in two layers, the upper and lower surfaces of the double-layer fixed frame 901 are rotatably connected to a rotating disk 902. The rotating disk 902 is located between the upper and lower layers of the double-layer fixed frame 901. The upper and lower surfaces of the double-layer fixed frame 901 are fixedly connected to a first rotating handle 903. The upper surface of the rotating disk 902 is arranged with a plurality of first sector blocks 907 in a circular array. The number of the plurality of first sector blocks 907 is set to six, so that the angle between each two adjacent first sector blocks 907 and the center of the rotating disk 902 is sixty degrees, and a residual arc block 908 is fixedly installed on the top of each first sector block 907;

[0045] A liquid level opening and closing assembly 13 is provided on the outside of the ammonia-containing wastewater treatment kettle 3 . The liquid level opening and closing assembly 13 includes a transparent circular tube 1301 . The upper and lower ends of the transparent circular tube 1301 are fixedly mounted on the outer wall of the ammonia-containing wastewater treatment kettle 3 .

[0046] A first fixed disc frame 4 is fixedly installed on the outer top of the ammonia-containing wastewater treatment kettle 3, and a stepper motor 5 is fixedly connected to the top of the first fixed disc frame 4. The output shaft end of the stepper motor 5 is penetrated and rotatably connected to the middle part of the first fixed disc frame 4. The output shaft end of the stepper motor 5 is fixedly connected to a first rotating column 6, and the first rotating column 6 is penetrated and rotatably connected to the top of the ammonia-containing wastewater treatment kettle 3. The top of the ammonia-containing wastewater treatment kettle 3 is fixedly connected to a wastewater inlet 7, and the wastewater inlet 7 is interconnected with the ammonia-containing wastewater device. The ammonia-containing wastewater device is used to stably discharge ammonia-containing wastewater into the inner cavity of the ammonia-containing wastewater treatment kettle 3, and the ammonia-containing wastewater device is a prior art device, so it will not be repeated.

[0047] The pH value quantitative adjustment component 9 also includes a first synchronous wheel 904, which is rotatably connected to the first rotating handle 903 at one end away from the connection between the double-layer fixed frame 901 and the first rotating handle 903. A second synchronous wheel 905 is fixedly installed on the outer side of the first rotating column 6, and a synchronous belt 906 is connected to the second synchronous wheel 905 and the first synchronous wheel 904 for transmission. A second rotating column 909 is fixedly installed on the bottom of the first synchronous wheel 904, and a second sector block 910 is fixedly installed on the bottom of the second rotating column 909. The top of the second rotating column 909 is fixedly connected to the second rotating handle 911. The inner arc surface of each residual arc block 908 is aligned with the outer arc surface of the second sector block 910. The arc surfaces are adapted to each other, and there is a gap between the side walls of each adjacent first sector block 907. The gap between each adjacent first sector block 907 is slidably adapted to the end of the second rotating handle 911 away from the second sector block 910, and the gap between each adjacent first sector block 907 is located on the movement path of the second rotating handle 911. The bottom of the rotating disk 902 is fixedly connected to the storage box 912, and the outer side of the storage box 912 is fixedly connected to the alkaline solution injection port 913. The alkaline solution injection port 913 is provided with a snap-on cover. The alkaline solution injection port 913 is connected to the alkaline solution dosing device, and the alkaline solution dosing device is used to inject sodium hydroxide solution into the alkaline solution through the alkaline solution injection port 913. In the storage box 912, the top of the storage box 912 is fixedly connected to a delivery nozzle 914, the top of the delivery port 8 is fixedly connected to a second fixed disc frame 915, and the top of the second fixed disc frame 915 is fixedly installed with a circular track 916. The width of the circular track 916 is adapted to the size of the delivery nozzle 914. The center of the circular track 916 and the center of the storage box 912 are located in the same vertical direction. Therefore, the delivery nozzle 914 can be slidably adapted to the inside of the circular track 916, and the delivery nozzle 914 and the circular track 916 conflict with each other. There are two circular holes 917 in the interior of the circular track 916, and the two circular holes 917 are shaped in the same direction as the center of the circular track 916. The angle formed is one hundred and twenty degrees. The inner diameter of the delivery nozzle 914 is adapted to the inner diameter of the two circular holes 917. The two circular holes 917 are fixedly connected with a Y-shaped connecting pipe 918. The outer wall of the ammonia-containing wastewater treatment kettle 3 is penetrated and fixedly installed with a pH display 919. The principle of the pH display 919 utilizes the potential difference generated when the pH electrode contacts the solution to be tested. The potential difference between the electrodes is different due to the different hydrogen ion concentrations in the solution. This potential difference is processed by the signal amplification and conversion circuit inside the instrument, and is converted into the corresponding pH value according to the Nernst equation, and finally output through the display screen. The pH display 919 is an existing device in the prior art, so it will not be described in detail.

[0048] A tubular evaporator 12 is fixedly installed on the top of the fixed base 1, and the top discharge end of the tubular evaporator 12 is interconnected with the dilute sulfuric acid absorption tower, which converts it into ammonia water or ammonium salt such as ammonium sulfate for recycling, avoiding the harm caused by direct discharge. The tubular evaporator 12 and the dilute sulfuric acid absorption tower are both existing technology devices and will not be described in detail. The bottom of the ammonia-containing wastewater treatment kettle 3 is fixedly connected with an output pipe 11, and the end of the output pipe 11 away from the ammonia-containing wastewater treatment kettle 3 is interconnected with the tubular evaporator 12. A double-layer stirring rod 10 is fixedly installed at the bottom of the first rotating column 6, and the double-layer stirring rod 10 is located in the inner cavity of the ammonia-containing wastewater treatment kettle 3.

[0049] The liquid level on / off assembly 13 also includes a connecting pipe 1302, which is fixedly connected to the inner cavity of the ammonia-containing wastewater treatment kettle 3. The connecting pipe 1302 is interconnected with the end of a transparent circular tube 1301 that is away from the outside of the ammonia-containing wastewater treatment kettle 3. A floating ball 1303 is slidably connected to the interior of the transparent circular tube 1301, and a touch switch 1304 is fixedly mounted on the top of the transparent circular tube 1301. A loudspeaker 1305 is fixedly mounted on the outer wall of the ammonia-containing wastewater treatment kettle 3. The floating ball 1303 is made of polypropylene, which has a low density, is easy to float, and is resistant to strong acids and alkalis. The touch switch 1304 controls the opening and closing of the loudspeaker 1305 via an external control panel.

[0050] The above implementation works as follows:

[0051] The initialization steps are as follows:

[0052] The staff first opens the cover of the alkaline solution injection port 913, and then injects the sodium hydroxide solution into the storage box 912 through the alkaline solution injection port 913. When the storage box 912 is full, the staff closes the cover of the alkaline solution injection port 913, and the staff starts the ammonia-containing wastewater device and releases the ammonia-containing wastewater into the inner cavity of the ammonia-containing wastewater treatment kettle 3 through the wastewater inlet 7.

[0053] The steps for running the job are as follows:

[0054] The working steps of the quantitative pH adjustment component 9 are as follows:

[0055] As the ammonia-containing wastewater continuously enters the bottom of the inner cavity of the ammonia-containing wastewater treatment kettle 3, the staff starts the stepper motor 5 at this time, and the stepper motor 5 drives the first rotating column 6 to rotate synchronously clockwise through its output shaft end. Therefore, the first rotating column 6 first drives the double-layer stirring rod 10 to rotate clockwise with the center of the connection between the first rotating column 6 and the double-layer stirring rod 10 as the axis, so that the double-layer stirring rod 10 stirs the solution in the inner cavity of the ammonia-containing wastewater treatment kettle 3. As the double-layer stirring rod 10 continues to stir, the first rotating column 6 drives the second synchronous wheel 905 to rotate synchronously, so the second synchronous wheel 905 makes the second synchronous wheel 905 rotate clockwise through the synchronous belt 906. The first synchronous wheel 904 maintains the same speed and same direction of movement, so the first synchronous wheel 904 rotates with the center of the connection between the first synchronous wheel 904 and the first rotating handle 903 as the axis, so that the first synchronous wheel 904 drives the second rotating handle 911 and the second sector block 910 to rotate with the center of the first synchronous wheel 904 as the axis, wherein the outer arc surface of the second sector block 910 fits with the inner arc surface of the residual arc block 908 during the rotation process, at this time the second rotating handle 911 does not enter the gap between the two adjacent first sector blocks 907, and when the outer arc surface of the second sector block 910 fits with the inner arc surface of the residual arc block 908 08 is completely fitted, the second rotating handle 911 is at the position closest to the center of the rotating disk 902. Similarly, the end of the second rotating handle 911 that is fitted with the rotating disk 902 is in circular motion with the center of the second sector block 910 as a reference. Then, when the second rotating handle 911 moves in a circular motion to the gap between the two adjacent first sector blocks 907, the outer arc surface of the second sector block 910 and the inner arc surface of the residual arc block 908 no longer fit each other. At this time, the second rotating handle 911 continues to move in a circular motion, so that the second rotating handle 911 begins to push the side wall of the first sector block 907, accompanied by The side wall of the first sector block 907 is pushed by the second rotating handle 911, and then the first sector block 907 drives the rotating disk 902 to rotate. The above working steps are repeated. A total of the second rotating handle 911 needs to pass through the gap between two adjacent first sector blocks 907 six times, thereby completing one rotation of the rotating disk 902 by the first sector block 907. Therefore, it can be seen that each time the second rotating handle 911 passes through the gap between two adjacent first sector blocks 907, the first sector block 907 drives the rotating disk 902 to rotate sixty degrees, so that the rotating disk 902 drives the storage box 912 to move synchronously.

[0056] From the above working steps, it can be seen that the rotating disk 902 rotates 60 degrees each time and stays for a period of time, and the stay time is the time when the second rotating handle 911 does not enter the gap between two adjacent first sector blocks 907;

[0057] The rotating disc 902 drives the storage box 912 to move synchronously. At this time, the storage box 912 also drives the dispensing nozzle 914 to slide inside the circular track 916. When the dispensing nozzle 914 moves to the position of the first circular hole 917, the bottom of the dispensing nozzle 914 is no longer interfered with by the second fixed disc frame 915. Therefore, the dispensing nozzle 914 dispenses the sodium hydroxide solution inside the storage box 912 into the Y-shaped connecting tube 918 through the circular hole 917. When the dispensing nozzle 914 passes through the position of the second circular hole 917 again, the above working steps are repeated. The angle formed by the two circular holes 917 is 120 degrees. Therefore, the second rotating handle 911 only needs to pass through the gap between two adjacent first sector blocks 907 twice.

[0058] Similarly, when sodium hydroxide is intermittently added into the inner cavity of the ammonia-containing wastewater treatment kettle 3, the sodium hydroxide and the ammonia-containing wastewater undergo acid-base neutralization reaction. At the same time, the double-layer stirring rod 10 still keeps rotating, and the pH display instrument 919 continuously detects the solution in the inner cavity of the ammonia-containing wastewater treatment kettle 3.

[0059] By setting up the quantitative pH value adjustment component 9, the problem of a sudden increase in the local hydroxide ion concentration caused by a large amount of sodium hydroxide solution added at one time is effectively avoided, thereby preventing the instantaneous large amount of ammonia gas from escaping due to an overly intense acid-base neutralization reaction. It can also avoid the impact of excessive heat release from the local reaction on the ammonia-containing wastewater treatment reactor 3, and at the same time avoid the strong alkalinity of the overall mixed solution caused by the addition of too much sodium hydroxide solution at one time;

[0060] Secondly, the synchronous dynamic addition of ammonia-containing wastewater and sodium hydroxide solution can always maintain a relatively stable pH range in the ammonia-containing wastewater treatment kettle 3, ensuring that ammonium ions and hydroxide ions can continuously contact and react in proportion. At the same time, the feeding ratio of the two materials can be flexibly adjusted according to the real-time reaction situation, ensuring that the conversion efficiency of ammonium ions is stable at a high level and can adapt to fluctuations in the concentration of ammonia-containing wastewater;

[0061] Finally, the inside of the ammonia-containing wastewater treatment kettle 3 is stirred at a uniform speed by the double-layer stirring rod 10, accompanied by the simultaneous addition of ammonia-containing wastewater and sodium hydroxide solution, which not only significantly promotes the uniform mixing of ammonia-containing wastewater and sodium hydroxide solution, but also eliminates the concentration difference formed by local aggregation, so that hydroxide ions can fully contact with more ammonium ions and undergo neutralization reaction, reducing the reaction dead angle, not only improving the overall reaction rate and neutralization uniformity, but also helping to shorten the time for the reaction to reach equilibrium, increase the wastewater treatment volume per unit time, and at the same time avoid the residual of local unreacted ammonium ions, ensuring the stability of the water quality inside the subsequent tubular evaporator 12.

[0062] The working steps of the liquid level opening and closing component 13 are as follows:

[0063] As the mixed liquid of sodium hydroxide and ammonia-containing wastewater continuously enters the inner cavity of the ammonia-containing wastewater treatment kettle 3, the liquid level of the mixed liquid in the inner cavity of the ammonia-containing wastewater treatment kettle 3 is also constantly rising. At this time, the solution of the ammonia-containing wastewater treatment kettle 3 also enters the transparent circular tube 1301 through the connecting pipe 1302, so that the liquid level in the transparent circular tube 1301 is kept flush with the liquid level in the inner cavity of the ammonia-containing wastewater treatment kettle 3. As the liquid level in the transparent circular tube 1301 rises, the floating ball 1303 floats on the liquid surface and slides vertically upward along the inner wall of the transparent circular tube 1301. When the floating ball 1303 is lowered, the floating ball 1303 is lifted up and the floating ball 1303 is lifted up. As the float 1303 continues to rise, when the float 1303 touches the touch switch 1304, the touch switch 1304 starts the loudspeaker 1305 through the external control surface, and the loudspeaker 1305 emits a loud sound to remind the staff that the device for releasing ammonia-containing wastewater needs to be turned off. At the same time, the staff adds sodium hydroxide solution according to the value displayed by the pH display 919. It is only necessary to repeat the above-mentioned working steps of the quantitative adjustment of the pH value component 9, thereby realizing an alkaline environment in the inner cavity of the ammonia-containing wastewater treatment kettle 3.

[0064] When the pH value of the mixed solution is alkaline as a whole, the ammonia nitrogen exists in the form of free ammonia, and enters the tubular evaporator 12 from the inner cavity of the ammonia-containing wastewater treatment kettle 3 through the output pipe 11, so that the tubular evaporator 12 heats the mixture to achieve separation of ammonia nitrogen and wastewater, and then deammonia treatment is carried out in the ammonia-containing wastewater.

[0065] By setting the liquid level opening and closing component 13, it is possible to avoid the situation where the mixed liquid inside the ammonia-containing wastewater treatment kettle 3 is overloaded or too little. On the one hand, it can accurately control the liquid level range in the ammonia-containing wastewater treatment kettle 3, ensuring that the sodium hydroxide solution and the ammonia-containing wastewater are always in a liquid volume range suitable for sufficient reaction, which not only avoids the problem of insufficient contact area between the two when the liquid level is too low, resulting in incomplete local neutralization and reduced ammonium ion conversion efficiency, but also prevents the stratification of the two caused by the difficulty in uniform stirring when the liquid level is too high, thereby ensuring the uniformity and efficiency of the neutralization reaction;

[0066] On the other hand, when the liquid level rises abnormally close to the overflow threshold, the floating ball 1303 touches the alarm to promptly remind the staff to shut down the feed to prevent leakage of strong alkaline solution and ammonia-containing materials causing equipment corrosion, personal injury, and environmental pollution caused by ammonia escape.

[0067] 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 the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0068] 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. A comprehensive treatment device for ammonia-containing wastewater, comprising a fixed base (1), a triangular fixing frame (2) fixedly mounted on the top of the fixed base (1), an ammonia-containing wastewater treatment kettle (3) fixedly mounted on the inner side of the triangular fixing frame (2), and a top of the ammonia-containing wastewater treatment kettle (3) fixedly connected to a feed port (8), characterized in that: A quantitative pH value adjustment component (9) is provided at the top of the delivery port (8), and the quantitative pH value adjustment component (9) comprises a double-layer fixed frame (901), the double-layer fixed frame (901) is fixedly connected to the top of the delivery port (8), the double-layer fixed frame (901) is provided with an upper and lower layers, the lower surface of the upper layer of the double-layer fixed frame (901) is rotatably connected to a rotating disc (902), the lower surface of the upper layer of the double-layer fixed frame (901) is fixedly connected to a first rotating handle (903), the upper surface of the rotating disc (902) is provided with a plurality of first sector blocks (907) arranged in a circular array, the number of the plurality of first sector blocks (907) is set to six, and a residual arc block (908) is fixedly installed on the top of each first sector block (907); A liquid level opening and closing assembly (13) is provided on the outside of the ammonia-containing wastewater treatment kettle (3), and the liquid level opening and closing assembly (13) comprises a transparent circular tube (1301), and the upper and lower ends of the transparent circular tube (1301) are fixedly mounted on the outer wall of the ammonia-containing wastewater treatment kettle (3).

2. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 1, characterized in that: A first fixed disc frame (4) is fixedly mounted on the outer top of the ammonia-containing wastewater treatment kettle (3); a stepper motor (5) is fixedly connected to the top of the first fixed disc frame (4); an output shaft end of the stepper motor (5) is fixedly connected to a first rotating column (6); and a wastewater inlet (7) is fixedly connected to the top of the ammonia-containing wastewater treatment kettle (3).

3. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 2, characterized in that: The quantitative pH value adjustment component (9) further comprises a first synchronous wheel (904), the first synchronous wheel (904) being rotatably connected to one end of the first rotating handle (903) away from the connection between the double-layer fixed frame (901) and the first rotating handle (903), a second synchronous wheel (905) being fixedly mounted on the outer side of the first rotating column (6), a synchronous belt (906) being transmission-connected between the second synchronous wheel (905) and the first synchronous wheel (904), a second rotating column (909) being fixedly mounted on the bottom of the first synchronous wheel (904), a second sector block (910) being fixedly mounted on the bottom of the second rotating column (909), and a second rotating handle (911) being fixedly mounted on the top of the second rotating column (909). 911), the bottom of the rotating disc (902) is fixedly connected to a storage box (912), the outer side of the storage box (912) is fixedly connected to an alkaline solution injection port (913), the top of the storage box (912) is fixedly connected to a delivery nozzle (914), the top of the delivery port (8) is fixedly connected to a second fixed disc frame (915), the top of the second fixed disc frame (915) is fixedly installed with a circular track (916), the interior of the circular track (916) is provided with two circular holes (917), the two circular holes (917) are fixedly connected to a Y-shaped connecting pipe (918), and the outer wall of the ammonia-containing wastewater treatment kettle (3) is penetrated and fixedly installed with a pH display (919).

4. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 2, characterized in that: A tubular evaporator (12) is fixedly mounted on the top of the fixed base (1), an output pipe (11) is fixedly connected to the bottom of the ammonia-containing wastewater treatment kettle (3), and a double-layer stirring rod (10) is fixedly mounted on the bottom of the first rotating column (6).

5. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 1, characterized in that: The liquid level opening and closing assembly (13) further comprises a connecting pipe (1302), wherein the connecting pipe (1302) is fixedly connected to the inner cavity of the ammonia-containing wastewater treatment kettle (3), a floating ball (1303) is slidably connected to the interior of the transparent circular tube (1301), a touch switch (1304) is fixedly installed on the top of the transparent circular tube (1301), and a speaker (1305) is fixedly installed on the outer wall of the ammonia-containing wastewater treatment kettle (3).

6. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 2, characterized in that: The output shaft end of the stepping motor (5) is connected to the middle of the first fixed disc frame (4) through penetration and rotation, and the first rotating column (6) is connected to the top of the ammonia-containing wastewater treatment kettle (3) through penetration and rotation.

7. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 3, characterized in that: The inner arc surface of each residual arc block (908) is adapted to the outer arc surface of the second sector block (910), and the width of the annular track (916) is adapted to the size of the delivery nozzle (914).

8. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 3, characterized in that: The inner diameter of the delivery nozzle (914) is adapted to the inner diameters of the two circular holes (917).

9. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 4, characterized in that: One end of the output pipe (11) away from the ammonia-containing wastewater treatment kettle (3) is communicated with the tubular evaporator (12).

10. The comprehensive treatment equipment for ammonia-containing wastewater according to claim 5, characterized in that: The connecting pipe (1302) is connected to an end of the transparent circular tube (1301) away from the outside of the ammonia-containing wastewater treatment kettle (3), and the touch switch (1304) controls the opening and closing of the broadcaster (1305) through an external control panel. The touch switch (1304) is located on the movement path of the floating ball (1303).

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