An ammonia nitrogen removal system

Abstract

The present invention discloses an ammonia nitrogen removal system, comprising a shell, a treatment box, a partition and an electrolysis assembly. An electrolysis area is formed between the electrolysis assembly and the partition, and the electrolysis assembly includes an electrolysis plate, a support, a limiter and a positioning member. The ammonia nitrogen removal system can change the size of the flow area according to the actual quality of the wastewater, thereby controlling the time the wastewater stays in the treatment box, and controlling the electrolysis efficiency of the ammonia nitrogen element in the wastewater according to the time the wastewater stays in the treatment box. When in use, it is only necessary to press the electrolysis assembly so that the limiter on the electrolysis assembly cooperates with the positioning member, so that the limiter is in a positioning port at different heights, thereby changing the size of the flow area between the lower end of the electrolysis plate and the bottom wall of the treatment box. It is not only convenient for installation, but also convenient for the actual operation of the staff, and can effectively improve the treatment efficiency of wastewater of different qualities.

Description

Technical Field

[0001] The present invention relates to wastewater treatment technology, in particular to an ammonia nitrogen removal system. Background Art

[0002] At present, the high ammonia nitrogen wastewater generated by industries such as fertilizers, coking, petrochemicals, pharmaceuticals, food, landfills, and waste product recycling is increasing. Ammonia nitrogen is one of the important causes of water pollution. Ammonia nitrogen can cause eutrophication of water bodies, make water bodies black and smelly, and even have a toxic effect on people and organisms.

[0003] Although ammonia stripping, membrane separation, and ion exchange methods have good effects, the process operations are complex, the treatment costs are relatively high, and there is a problem of secondary pollution of the stripping gas. The chemical precipitation method mainly removes ammonia nitrogen based on the principle that phosphate, magnesium ions, and ammonium ions react to form magnesium ammonium phosphate precipitates. It has the advantages of high treatment efficiency and resource utilization of precipitates, but the process has problems such as incomplete treatment, calcium ion interference, and secondary pollution of phosphate. The breakpoint chlorination method has the advantage of high treatment efficiency, but some oxidants are expensive and there is a problem of secondary pollution of residual chlorine. The biological denitrification method has the advantages of thorough denitrification and low pollution, but it has high requirements for conditions and a long cycle, and the equipment occupies a large area.

[0004] CN208279439U discloses an electrolytic treatment device for high-salt organic ammonia nitrogen wastewater, which improves the electrolysis efficiency by filling the electrolysis box with conductive fillers. However, due to the presence of the fillers, the wastewater has low fluidity, resulting in a decrease in the contact rate with chloride ions, resulting in low electrolysis efficiency.

[0005] CN112850858B discloses an integrated electrolytic ammonia-nitrogen removal device for wastewater treatment. The device utilizes multiple three-dimensional packing columns between the cathode and anode plates to provide a centralized reaction zone for ammonia-nitrogen compounds and chlorine gas, as well as a multifunctional aeration assembly installed at the bottom of the electrolytic cell. The multifunctional aeration assembly includes an aeration pipe and a rotating nozzle for aeration and stirring, and a flushing pipe and aeration nozzle connected to the three-dimensional packing columns for activation and flushing. However, the position of the cathode and anode plates cannot be adjusted according to the actual wastewater flow rate, nor can the flow rate be controlled, making it difficult to adjust the electrolysis time for different wastewater types. Summary of the Invention

[0006] In order to solve the defects of the above-mentioned prior art, the present invention proposes an ammonia nitrogen removal system.

[0007] The technical solution of the present invention is achieved as follows:

[0008] An ammonia nitrogen removal system, characterized by comprising:

[0009] A shell, the interior of which is hollowed out to form a collection chamber, and an exhaust pipe is provided on the shell.

[0010] A processing box is provided in the collection chamber. The interior of the processing box is hollowed out to form a processing chamber. One end of the processing box is provided with a water inlet pipe and the other end is provided with a water outlet pipe. The position of the water inlet pipe is lower than the height of the water outlet pipe.

[0011] The partition is installed in the processing chamber, and the partition is composed of a plate body and a mounting body. The processing box is provided with a mounting opening and a mounting groove. The plate body is arranged in the mounting groove, and the mounting body is arranged in the mounting opening. The width of the plate body is smaller than the width of the mounting body. The plate body is provided with a through hole.

[0012] and an electrolytic assembly installed in the processing chamber, wherein an electrolytic region is formed between the electrolytic assembly and the partition, the electrolytic assembly and the partition being spaced apart, and the electrolytic assembly comprising:

[0013] An electrolytic plate, wherein the electrolytic plate is provided with a mounting hole,

[0014] A support member is provided on the processing box, and the support member consists of an installation section, a fixed section and a pressure section. The lower end of the installation section is provided with a fixed groove, and the electrolytic plate is installed in the fixed groove by bolts. A movable opening is formed between the installation section and the fixed section, and the movable opening is placed on the box wall of the processing box. The fixed section is provided with an annular groove, and the lower end of the pressure section is provided with a movable rod, and a spring is sleeved on the movable rod. The processing box is provided with a support plate, and the support plate is provided with a movable hole that cooperates with the movable rod. The upper end of the spring contacts the pressure section, and the lower end contacts the support plate.

[0015] A limiting member is arranged in the annular groove, wherein the upper end of the limiting member is arranged in the annular groove, and the lower end of the limiting member is provided with a limiting section.

[0016] The positioning member is arranged in cooperation with the limiting member, and the positioning members are symmetrically arranged. A sliding area is formed between the positioning members, and the positioning member is provided with a first positioning port, a second positioning port and a third positioning port that cooperate with the limiting section.

[0017] In the present invention, the height of the through hole is higher than the position of the water outlet pipe.

[0018] In the present invention, the diameter of the upper end of the fixed section is larger than the diameter of the lower end, and is arranged to be larger at the top and smaller at the bottom.

[0019] In the present invention, the limiting member is composed of a first arc segment, a clamping segment, a crossing segment, an extension segment, a first parallel segment, a second arc segment, a second parallel segment, a first inclined segment, a third arc segment, a second inclined segment and a limiting segment, and the second arc segment is arranged perpendicular to the first parallel segment and the second parallel segment.

[0020] In the present invention, a clamping area is formed between the first arc segment and the symmetrically arranged clamping segment and cross segment; the first arc segment, the clamping segment and the cross segment are placed in an annular groove; an elastic area is formed between the first inclined segment, the third arc segment and the second inclined segment; and a movable area is formed between the limiting segments.

[0021] In the present invention, the width of the annular groove is smaller than the diameter of the limiting member.

[0022] In the present invention, the first inclined section and the second inclined section have opposite inclination directions.

[0023] In the present invention, the width of the sliding area between the positioning members is smaller than the width of the active area.

[0024] In the present invention, the positioning member is provided with a first guide slope, a second guide slope and a third guide slope, a vertical surface is formed in the sliding area, the first guide slope and the vertical surface are connected by a first arc surface, and the second guide slope and the third guide slope are connected by a second arc surface.

[0025] In the present invention, the first positioning port and the second positioning port are separated by a first isolation block, and the second positioning port and the third positioning port are separated by a second isolation block. The first positioning port, the second positioning port and the third positioning port are inclined toward the direction of the limiting member.

[0026] The implementation of the ammonia nitrogen removal system of the present invention has the following beneficial effects: the ammonia nitrogen removal system can change the size of the flow area according to the actual quality of the wastewater, thereby controlling the time the wastewater stays in the treatment tank, and controlling the electrolysis efficiency of the ammonia nitrogen element in the wastewater according to the time the wastewater stays in the treatment tank. During use, it is only necessary to press the electrolytic component so that the limiter on the electrolytic component cooperates with the positioning member, so that the limiter is located in the positioning opening at different heights, thereby changing the size of the flow area between the lower end of the electrolytic plate and the bottom wall of the treatment tank. This is not only convenient for installation, but also convenient for staff to actually operate, and can effectively improve the treatment efficiency of wastewater of different qualities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the ammonia nitrogen removal system of the present invention;

[0028] Figure 2 for Figure 1 A top view of

[0029] Figure 3 for Figure 2 The cross-sectional view at AA in the figure;

[0030] Figure 4 for Figure 1Schematic diagram of the internal structure;

[0031] Figure 5 for Figure 4 A local enlarged view of point B in FIG;

[0032] Figure 6 for Figure 4 Schematic diagram of the processing box structure;

[0033] Figure 7 for Figure 4 Schematic diagram of the electrolytic component structure;

[0034] Figure 8 for Figure 7 Exploded diagram;

[0035] Figure 9 for Figure 7 Schematic diagram of the limiter structure in FIG;

[0036] Figure 10 for Figure 7 Schematic diagram of the positioning member structure;

[0037] Figure 11 This is a schematic diagram of the structure of the installation state of the limiting member and the positioning member in the present invention;

[0038] Figure 12 for Figure 4 Schematic diagram of the partition structure;

[0039] Figure 13 for Figure 8 Schematic diagram of the support structure.

[0040] In the figure: shell 1, processing box 2, partition 3, electrolysis assembly 4, collection chamber 5, exhaust pipe 6, processing chamber 7, water inlet pipe 8, water outlet pipe 9, plate body 10, mounting body 11, mounting port 12, mounting groove 13, through hole 14, electrolysis area 15, water inlet area 16, water outlet area 17, electrolysis plate 18, flow area 19, support member 20, limit member 21, positioning member 22, mounting hole 23, bolt 24, mounting section 25, fixing section 26, pressure section 27, fixing groove 28, movable port 29, annular groove 30, first arc section 31, movable rod 32, spring 33, support plate 34, Strip groove 35, movable hole 36, intersection section 37, clamping section 38, extension section 39, first parallel section 40, second arcuate section 41, second parallel section 42, first inclined section 43, third arcuate section 44, second inclined section 45, limiting section 46, clamping area 47, elastic area 48, movable area 49, sliding area 50, first positioning port 51, second positioning port 52, third positioning port 53, vertical surface 54, first guide inclined surface 55, second guide inclined surface 56, third guide inclined surface 57, first arcuate surface 58, second arcuate surface 59, first isolation block 60, second isolation block 61. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0042] like Figures 1 to 13 As shown, the ammonia nitrogen removal system of the present invention includes a housing 1, a treatment box 2, a partition 3 and an electrolysis assembly 4. The interior of the housing 1 is hollowed out to form a collection chamber 5, and an exhaust pipe 6 is provided on the housing 1. The housing 1 is used to collect exhaust gas generated during the electrolysis of wastewater to prevent the exhaust gas from polluting the factory area and affecting the normal operation of the staff. The treatment box 2 is used for the electrolysis assembly 4 to electrolyze the wastewater, and the partition 3 is used to slow down the flow rate of the wastewater, so that the wastewater is separated by the electrolysis assembly 4 and the partition 3, so that the wastewater is in a state of up and down flow in the treatment box 2, slowing down the water flow rate and improving the electrolysis efficiency of the wastewater.

[0043] Treatment box 2 is housed within collection chamber 5. The interior of treatment box 2 is hollowed out to form treatment chamber 7. An inlet pipe 8 is located at one end of treatment box 2, and an outlet pipe 9 is located at the other end. Inlet pipe 8 is positioned lower than outlet pipe 9. Wastewater enters treatment chamber 7 through inlet pipe 8 and is discharged through outlet pipe 9. Because inlet pipe 8 is lower than outlet pipe 9, the wastewater is electrolyzed in treatment box 2 for as long as possible.

[0044] The partition 3 is installed in the treatment chamber 7. The partition 3 consists of a plate body 10 and a mounting body 11. The treatment box 2 is provided with a mounting opening 12 and a mounting groove 13. The plate body 10 is set in the mounting groove 13, and the mounting body 11 is set in the mounting opening 12. The width of the plate body 10 is smaller than the width of the mounting body 11. The plate body 10 is provided with a through hole 14. The height of the through hole 14 is higher than the position of the outlet pipe 9. Through the through hole 14, the wastewater between the partition 3 and the electrolysis assembly 4 can enter another electrolysis area 15 through the through hole 14 for further electrolysis.

[0045] A water inlet area 16 and a water outlet area 17 are formed between the electrolytic assembly 4 and the inner wall of the treatment chamber 7. The water inlet area 16 is close to the water inlet pipe 8, while the water outlet area 17 is close to the water outlet pipe 9. A flow area 19 is formed between the lower end of the electrolytic plate 18 and the bottom wall of the treatment chamber 7. The height of the flow area 19 is adjusted by the cooperation of the limiter 21 and the positioning member 22.

[0046] Wastewater enters the electrolysis area 15 from the flow area 19, fills the electrolysis area 15, and then enters the next electrolysis area 15 from the through hole 14. The electrolysis areas 15 are connected through the through hole 14 or the electrolysis areas 15 are connected through the flow area 19.

[0047] The electrolytic assembly 4 is mounted within the treatment chamber 7. An electrolysis region 15 is formed between the electrolytic assembly 4 and the separator 3. The electrolytic assembly 4 is spaced apart from the separator 3. The electrolytic assembly 4 includes an electrolytic plate 18, a support 20, a stopper 21, and a positioning member 22. The electrolytic plate 18 is mounted at the lower end of the support 20, the stopper 21 is mounted at both ends of the support 20, and the positioning member 22 is mounted on the outer wall of the treatment chamber 2.

[0048] Electrolytic plate 18 is provided with mounting holes 23, which facilitate bolts 24 to secure it to support member 20, maintaining power to electrolytic plate 18. Support member 20 is mounted on treatment box 2 and consists of a mounting section 25, a fixing section 26, and a pressure section 27. The lower end of mounting section 25 is provided with a fixing slot 28, into which electrolytic plate 18 is mounted via bolts 24. A movable opening 29 is formed between mounting section 25 and fixing section 26. This movable opening 29 is located on the wall of treatment box 2 and serves to maintain the position of support member 20. Pressing down on support member 20 causes movable opening 29 to gradually shrink.

[0049] The upper end diameter of the fixed section 26 is larger than the lower end diameter, and is arranged to be larger at the top and smaller at the bottom. Cooperating with the limiting member 21, the limiting member 21 can be installed in the annular groove 30 on the fixed section 26. The annular groove 30 can limit the position of the limiting member 21 so that it will not slide.

[0050] An annular groove 30 is defined in the fixing section 26. The width of the annular groove 30 is smaller than the diameter of the stopper 21, allowing the first arcuate section 31 of the stopper 21 to be deformed under load and installed within the annular groove 30. A movable rod 32 is provided at the lower end of the pressure section 27. A spring 33 is sleeved on the movable rod 32. The processing box 2 is provided with a support plate 34, which has a strip groove 35 for the movement of the stopper 21. The support plate 34 is provided with a movable hole 36 that cooperates with the movable rod 32. The upper end of the spring 33 contacts the pressure section 27, and the lower end contacts the support plate 34.

[0051] like Figure 9 As shown, due to the presence of the intersection section 37, the clamping section 38, intersection section 37, extension section 39, first parallel section 40, second arcuate section 41, second parallel section 42, first inclined section 43, third arcuate section 44, second inclined section 45, and limiting section 46 are not arranged symmetrically and have positional deviations. Therefore, the first arcuate section 31 now connects the two clamping sections 38 and is arranged in an inclined manner.

[0052] The diameter of the clamping section 38 is h, and the lateral distance between the two clamping sections 38 is 2h, so the maximum distance between one end and the other end of the first arc section 31 is 2h, and the width of the annular groove 30 is less than 2h, so that the inclined and twisted first arc section 31 is squeezed and deformed and installed in the annular groove 30.

[0053] The limiting member 21 comprises a first arcuate segment 31, a clamping segment 38, a cross segment 37, an extension segment 39, a first parallel segment 40, a second arcuate segment 41, a second parallel segment 42, a first inclined segment 43, a third arcuate segment 44, a second inclined segment 45, and a limiting segment 46. The second arcuate segment 41 is arranged perpendicular to the first parallel segment 40 and the second parallel segment 42. The limiting member 21 is disposed within the annular groove 30, with its upper end disposed within the annular groove 30 and a limiting segment 46 provided at its lower end.

[0054] A clamping region 47 is formed between the first arcuate segment 31 and the symmetrically arranged clamping segment 38 and cross segment 37. The first arcuate segment 31, the clamping segment 38, and the cross segment 37 are disposed within the annular groove 30. An elastic region 48 is formed between the first inclined segment 43, the third arcuate segment 44, and the second inclined segment 45. A movable region 49 is formed between the limiting segments 46. The first inclined segment 43 and the second inclined segment 45 have opposite inclinations.

[0055] like Figure 9As shown, the stopper 21 is now installed in the annular groove 30, so the two second arcuate segments 41 are in contact, so that pressing the extension segment 39 or the first inclined segment 43 will not cause the intersection segment 37 to move. Only when the two second arcuate segments 41 are separated and no longer in contact, and the connection between the first parallel segment 40 and the extension segment 39, or the connection between the second parallel segment 42 and the first inclined segment 43 is pushed, can the intersection segment 37 be displaced, thereby expanding the clamping area 47 and facilitating the removal or installation of the stopper 21 from the annular groove 30.

[0056] The positioning member 22 is arranged in cooperation with the limiting member 21. The positioning member 22 is arranged symmetrically. A sliding area 50 is formed between the positioning member 22 and the positioning member 22. The positioning member 22 is provided with a first positioning opening 51, a second positioning opening 52 and a third positioning opening 53 that cooperate with the limiting section 46.

[0057] The width of the sliding area 50 between the positioning members 22 is smaller than the width of the active area 49. After the retaining limit section 46 enters the sliding area 50, it is restricted by the vertical surface 54 of the sliding area 50 so that the limit section 46 is squeezed toward the middle.

[0058] The positioning member 22 is provided with a first guide slope 55, a second guide slope 56 and a third guide slope 57, and a vertical surface 54 is formed in the sliding area 50. The first guide slope 55 and the vertical surface 54 are connected by a first arc surface 58, and the second guide slope 56 and the third guide slope 57 are connected by a second arc surface 59.

[0059] The first positioning opening 51 and the second positioning opening 52 are separated by a first isolation block 60 , and the second positioning opening 52 and the third positioning opening 53 are separated by a second isolation block 61 . The first positioning opening 51 , the second positioning opening 52 and the third positioning opening 53 are tilted toward the direction of the limiting member 21 .

[0060] like Figure 11 As shown, when the electrolytic assembly 4 needs to be installed in the first positioning opening 51, the support member 20 is pressed downward, and the retaining section 46 is guided by the first guide slope 55 and enters the sliding area 50, thereby reducing the active area 49. The first inclined section 43, the third curved section 44, and the second inclined section 45 are all deformed under force, generating an elastic force. The retaining section 46 then passes through the first curved surface 58 and the vertical surface 54 and enters the first positioning opening 51. At this time, the external force applied to the support member 20 is eliminated, and the spring 33 is now compressed. Under the elastic force of the spring 33, the support member 20 is pushed upward, keeping the retaining section 46 confined in the first positioning opening 51.

[0061] When the height of the flow area 19 needs to be further reduced, the support member 20 can be further pressed to keep the limiting section 46 entering into different positioning openings.

[0062] To remove the electrolytic assembly 4, the support member 20 only needs to be pressed further, causing the limiting segment 46 to pass through the third positioning opening 53 and move downward along the vertical surface 54. The limiting segment 46 then returns to its original position under the elastic force of the first inclined segment 43, the third curved segment 44, and the second inclined segment 45, moving upward along the second guide slope 56, the second curved surface 59, and the third guide slope 57. The width of the movable area 49 is smaller than the distance between the second curved surfaces 59, 59, so that the limiting segment 46 can be guided in its sliding motion by the first guide slope 55.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ammonia nitrogen removal system, characterized in that: include: A shell, the interior of which is hollowed out to form a collection chamber, and an exhaust pipe is provided on the shell. A processing box is arranged in the collection chamber, and the interior of the processing box is hollowed out to form a processing chamber. A water inlet pipe is provided at one end of the processing box, and a water outlet pipe is provided at the other end. The position of the water inlet pipe is lower than the height of the water outlet pipe. A partition is installed in the processing chamber, and the partition is composed of a plate body and a mounting body. A mounting port and a mounting groove are provided on the processing box. The plate body is arranged in the mounting groove, and the mounting body is arranged in the mounting port. The width of the plate body is smaller than the width of the mounting body. A through hole is provided on the plate body. and an electrolytic assembly installed in the processing chamber, wherein an electrolytic region is formed between the electrolytic assembly and the partition, the electrolytic assembly and the partition being spaced apart, and the electrolytic assembly comprising: An electrolytic plate, wherein the electrolytic plate is provided with a mounting hole, A support member is provided on the processing box, and the support member consists of an installation section, a fixed section and a pressure section. The lower end of the installation section is provided with a fixed groove, and the electrolytic plate is installed in the fixed groove by bolts. A movable opening is formed between the installation section and the fixed section, and the movable opening is placed on the box wall of the processing box. The fixed section is provided with an annular groove, and the lower end of the pressure section is provided with a movable rod, and a spring is sleeved on the movable rod. The processing box is provided with a support plate, and the support plate is provided with a movable hole that cooperates with the movable rod. The upper end of the spring contacts the pressure section, and the lower end contacts the support plate. A limiting member is arranged in the annular groove, wherein the upper end of the limiting member is arranged in the annular groove, and the lower end of the limiting member is provided with a limiting section. The positioning member is arranged in cooperation with the limiting member, and the positioning members are symmetrically arranged. A sliding area is formed between the positioning members, and the positioning member is provided with a first positioning port, a second positioning port and a third positioning port that cooperate with the limiting section.

2. The ammonia nitrogen removal system according to claim 1, characterized in that The height of the through hole is higher than the position of the water outlet pipe.

3. The ammonia nitrogen removal system according to claim 1, characterized in that The upper end diameter of the fixed section is larger than the lower end diameter, and is arranged to be larger at the top and smaller at the bottom.

4. The ammonia nitrogen removal system according to claim 1, characterized in that The limiting member consists of a first arc section, a clamping section, a crossing section, an extension section, a first parallel section, a second arc section, a second parallel section, a first inclined section, a third arc section, a second inclined section and a limiting section, and the second arc section is arranged perpendicular to the first parallel section and the second parallel section.

5. The ammonia nitrogen removal system according to claim 4, characterized in that: A clamping area is formed between the first arc segment and the symmetrically arranged clamping segment and cross segment. The first arc segment, clamping segment and cross segment are placed in an annular groove. An elastic area is formed between the first inclined segment, the third arc segment and the second inclined segment. A movable area is formed between the limiting segments.

6. The ammonia nitrogen removal system according to claim 5, characterized in that: The width of the annular groove is smaller than the diameter of the limiting member.

7. The ammonia nitrogen removal system according to claim 6, characterized in that: The first inclined section and the second inclined section have opposite inclination directions.

8. The ammonia nitrogen removal system according to claim 7, characterized in that: The width of the sliding area between the positioning members is smaller than the width of the active area.

9. The ammonia nitrogen removal system according to claim 8, characterized in that: The positioning member is provided with a first guiding slope, a second guiding slope and a third guiding slope, a vertical surface is formed in the sliding area, the first guiding slope and the vertical surface are connected by a first arcuate surface, and the second guiding slope and the third guiding slope are connected by a second arcuate surface.

10. The ammonia nitrogen removal system according to claim 9, characterized in that: The first positioning opening and the second positioning opening are separated by a first isolation block, and the second positioning opening and the third positioning opening are separated by a second isolation block. The first positioning opening, the second positioning opening and the third positioning opening are inclined toward the direction of the limiting member.

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