A high ammonia-nitrogen wastewater treatment process

Abstract

The application provides a high-ammonia-nitrogen wastewater treatment process, which has the following steps: S1, primary treatment: wastewater is sent into a sedimentation tank through a water inlet pipe, and after a certain time of natural sedimentation, the wastewater after the primary treatment is sent into the top of a treatment tank through a water pump and a conveying pipe, the sediment in the sedimentation tank is sent out through a blowdown pipe at the bottom, and the wastewater can be uniformly conveyed into a reaction cavity through a conical table; compared with the prior art, the wastewater after the primary treatment is distributed in the reaction cavity, the efficiency of mixing with the liquid medicine is accelerated, after the reaction and sedimentation are completed, the wastewater is pushed out from the top by a driving assembly, the sediment is isolated between a filter plate and a rotating plate, is directly evaporated at low temperature on the top of the treatment tank, is condensed by cooperating with a condensing tank, and the sediment can be sent out of the reaction cavity together with the filter plate and the rotating plate, so that the sediment can be conveniently cleaned by a person, the scheme has a small land occupation area, the reaction efficiency is high, and the treatment efficiency of the wastewater can be accelerated.

Description

Technical Field

[0001] This invention relates to the field of high ammonia nitrogen wastewater treatment technology, specifically a high ammonia nitrogen wastewater treatment process. Background Technology

[0002] Ammonia nitrogen wastewater has a wide range of sources and is discharged in large quantities. Industries such as fertilizer production, coking, petrochemicals, pharmaceuticals, food processing, and landfills all generate large amounts of high-concentration ammonia nitrogen wastewater. The discharge of large quantities of ammonia nitrogen wastewater into water bodies not only causes eutrophication and blackening of the water, but also increases the difficulty and cost of wastewater treatment, and may even have toxic effects on humans and other organisms. Therefore, how to treat ammonia nitrogen wastewater is one of the main tasks for water treatment researchers.

[0003] Patent CN116573803A discloses a high-ammonia nitrogen wastewater treatment process and equipment. The process includes a wastewater tank, sedimentation tank, cooling mechanism, and dosing tank. During operation, wastewater is introduced into the wastewater tank through an inlet pipe. After natural sedimentation to remove large suspended solids, the wastewater is pumped into the sedimentation tank by an inlet pump. Simultaneously, a first solenoid valve controls the introduction of chemicals from the dosing tank into the sedimentation tank, allowing small and medium suspended solids to react with the chemicals and settle rapidly. Sludge at the bottom of the sedimentation tank is periodically discharged through a second discharge pipe via a second discharge valve. The resulting clarified wastewater, after further removal of small suspended solids, is then treated. Wastewater is pumped into the evaporation unit, where it undergoes low-temperature evaporation. The evaporated steam enters the condensation chamber through an open air valve and condenses into distilled water on the evaporator surface. This distilled water is collected in the condensate tank via a slope on the condensation chamber and then discharged. No external supply of live steam or cooling water is required; only electricity is needed. This system is highly efficient and energy-saving, operates more stably, has lower treatment costs, and produces better effluent quality. Furthermore, during the low-temperature evaporation process, ammonia nitrogen components in the wastewater are less likely to decompose and volatilize, resulting in a lower concentration of ammonia nitrogen in the effluent. The cleaning tank, which primarily removes scale from the evaporator by adding descaling agents, also serves a cooling function.

[0004] In the above technical solution, the wastewater undergoes a secondary reaction and filtration to remove the sediment. However, before the subsequent evaporation treatment, the wastewater needs to be mixed with the chemical solution to form a sediment. During this process, the sediment is difficult to send out directly and is easy to remain inside the treatment tank, which is inconvenient for subsequent manual treatment and also affects the transfer of wastewater to the evaporation tank for the next stage of treatment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a high ammonia nitrogen wastewater treatment process to solve the problems mentioned in the background section. The wastewater in the primary treatment is spread within the reaction chamber, accelerating the mixing efficiency with the chemical solution. After the reaction and sedimentation are complete, the wastewater is pushed out from the top by a drive assembly. The sediment is isolated between the filter plate and the rotating plate, and evaporates directly at low temperature at the top of the treatment tank. This is followed by condensation in a condenser. The sediment can then be sent out of the reaction chamber through both the filter plate and the rotating plate, facilitating manual cleaning. Furthermore, this solution has a small footprint, high reaction efficiency, and can accelerate wastewater treatment.

[0006] To achieve the above objectives, the present invention provides a high ammonia nitrogen wastewater treatment process, comprising the following steps:

[0007] S1. Primary treatment: Wastewater is sent into the sedimentation tank through the inlet pipe. After a certain period of natural sedimentation, the wastewater from the primary treatment is sent to the top of the treatment tank through a water pump and a delivery pipe. The sediment in the sedimentation tank is sent out through the drain pipe at the bottom. The wastewater can be evenly transported into the reaction chamber through the conical platform.

[0008] S2, Secondary Treatment: While the wastewater in step S1 enters the reaction chamber, the chemical solution that reacts with the wastewater in the chemical tank is transported through the chemical delivery pipe and the ring pipe, and sprayed onto the top of the reaction chamber through the nozzle. Then it enters the reaction chamber and mixes with the wastewater. Through physicochemical reaction, the small particulate suspended solids in the wastewater are quickly precipitated, and the ammonia nitrogen concentration in the wastewater decreases after precipitation.

[0009] S3. Low-temperature evaporation and condensation: After the wastewater is mixed with chemical solution and precipitated, the bottom plate is raised by the electric push rod, and the connecting rod pushes the rotating plate and rotating ring to slide along the inner wall of the reaction chamber, pushing the secondary treated wastewater in the reaction chamber out from the top. The filter plate blocks the sediment produced by the reaction and sends it out. The secondary treated wastewater is placed on the platform at the top of the treatment tank and evaporated at low temperature by the electric heating wire. Then the evaporated gas enters the condenser through the gas valve of the condenser, and the condensed water is sent out through the drain pipe.

[0010] S4. Reaction Chamber Cleaning: The rotating plate rises and engages with the bottom of the filter plate. When the electric push rod drives the rotating plate and connecting rod to descend, the filter plate will be pulled out of the bottom of the reaction chamber simultaneously, removing the sediment between the filter plate and the rotating plate to avoid sediment buildup that is difficult to clean. After cleaning, the protrusion is reset to the position corresponding to the insertion hole, and the filter plate is moved to the top of the reaction chamber by the elastic force of the reset spring.

[0011] Furthermore, in step S1, the wastewater after primary treatment is transported by having multiple transport channels facing the reaction chambers on the surface of the conical platform. The wastewater is sent out by the transport pipe and falls on the top of the conical platform, and then is evenly transported into each reaction chamber by the transport channels.

[0012] Furthermore, in step S2, the delivery of the liquid medicine involves a mounting plate on the top of the filter plate for mounting sliding rods, which is also used to mount the nozzles. The nozzles are positioned so that they face the top of the reaction chamber. As wastewater is delivered into the reaction chamber in batches, the liquid medicine is delivered into the reaction chamber in a uniform and equal amount.

[0013] Furthermore, in step S2, before the wastewater is fed into the reaction chamber, the rotating plate is initially located at the bottom of the reaction chamber. It is sealed and slid along the sliding rod and the inner wall of the reaction chamber by the rotating ring, thus sealing the lower end of the reaction chamber and forming a separate reaction space.

[0014] Furthermore, in step S3, after the wastewater reacts, it is pushed out and inserted into the socket hole at the bottom of the filter plate through the extended end of the spring telescopic rod at the top of the rotating plate. The sediment remains between the filter plate and the rotating plate, and the reacted wastewater is sent out from the top of the filter plate. The rotating plate slides along the slide rod through the outer rotating ring.

[0015] Furthermore, as the rotating plate moves along the reaction chamber, the rotating ring on the outside of the rotating plate slides into contact with the inner wall of the reaction chamber, pushing the wastewater in the reaction chamber out from the upper end of the filter plate. At the same time, the precipitate produced by the reaction cannot pass through the filter plate, so it will remain between the filter plate and the rotating plate. Moreover, the sealing of the reaction chamber by the rotating ring can prevent the wastewater from entering the reaction chamber again.

[0016] Furthermore, in step S4, the filter plate and the rotating plate are engaged by setting a rotating groove inside the socket and a socket at the bottom. The extended end of the spring telescopic rod has a protrusion that can be inserted into the socket and rotated. The protrusion is located inside the rotating groove and is misaligned with the insertion position of the socket, thus forming an engagement between the spring telescopic rod and the rotating groove.

[0017] Furthermore, when the spring telescopic rod is inserted, the motor drives the gear to rotate. Through the meshing transmission of multiple gears, the connecting rod, rotating plate, and spring telescopic rod rotate. The rotating plate and the rotating ring rotate, and the rotating ring can continue to slide up and down along the slide rod. Thus, the electric push rod drives the filter plate and the rotating plate to move out of the reaction chamber together, and the residual sediment is sent out for cleaning.

[0018] Furthermore, after the sedimentation and cleaning in the reaction chamber is completed, the spring telescopic rod and the protrusion rotate and reset, are sent out along the insertion hole, and separate from the filter plate. The filter plate rises along the slide rod by the elastic force of the reset spring and moves to the top of the reaction chamber for the secondary treatment of the next batch of wastewater.

[0019] Furthermore, during the lifting and moving of the base plate, the processing box is supported by a support frame at a certain height above the ground, and there is a certain gap between the bottom of the processing box and the ground, so that the base plate, connecting rod and rotating plate can move vertically without colliding with the ground.

[0020] The beneficial effects of this invention: This invention provides a high-ammonia nitrogen wastewater treatment process, comprising: a sedimentation tank; an inlet pipe; a drain pipe; a conveying pipe; a treatment tank; a heating wire; a conical platform; a conveying trough; a reaction chamber; a filter plate; a mounting plate; a slide rod; a return spring; a condensation tank; a drain pipe; a chemical tank; a chemical delivery pipe; a ring pipe; a nozzle; a drive assembly; an electric push rod; a base plate; a gear; a motor; a connecting rod; a rotating plate; a rotating ring; a spring telescopic rod; a protrusion; a socket; a insertion hole; and a rotating groove.

[0021] 1. This invention uses the meshing transmission of multiple gears to make the connecting rod, rotating plate and spring telescopic rod rotate. The protrusion can rotate along the rotating groove and misalign with the insertion position of the insertion hole, forming a snap-fit ​​between the spring telescopic rod and the rotating groove. Thus, when the electric push rod drives the rotating plate and connecting rod to descend, the filter plate will be pulled out of the bottom of the reaction chamber at the same time, and the sediment remaining between the filter plate and the rotating plate will be removed, avoiding the accumulation of sediment that is difficult to clean.

[0022] 2. In this invention, the bottom plate is raised by an electric push rod, and the connecting rod pushes the rotating plate and the rotating ring to slide along the inner wall of the reaction chamber, pushing the secondary treated wastewater in the reaction chamber out from the top. The filter plate blocks the sediment generated by the reaction from being sent out, and the secondary treated wastewater is placed on the platform at the top of the treatment tank. It is evaporated at low temperature by electric heating wire. During this process, the wastewater is spread out on the top of the treatment tank, which can accelerate the evaporation efficiency.

[0023] 3. Compared with the prior art, the wastewater in the primary treatment is spread inside the reaction chamber, which accelerates the mixing efficiency with the chemical solution. After the reaction and sedimentation are completed, the wastewater is pushed out from the top by the drive component. The sediment is isolated between the filter plate and the rotating plate and evaporates directly at low temperature at the top of the treatment tank. Then, it is condensed in the condenser. The sediment can be sent out of the reaction chamber through the filter plate and the rotating plate together, which is convenient for manual cleaning of the sediment. At the same time, the solution has a small footprint, high reaction efficiency, and can speed up the wastewater treatment efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the manufacturing process of a high ammonia nitrogen wastewater treatment process according to the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of a high ammonia nitrogen wastewater treatment process according to the present invention;

[0026] Figure 3 This is one of the schematic diagrams of the top structure of the treatment tank in a high ammonia nitrogen wastewater treatment process according to the present invention;

[0027] Figure 4 This is a second schematic diagram of the top structure of the treatment tank in a high ammonia nitrogen wastewater treatment process according to the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the reaction chamber in a high ammonia nitrogen wastewater treatment process of the present invention;

[0029] Figure 6 This is one of the schematic diagrams of the drive component structure for a high ammonia nitrogen wastewater treatment process according to the present invention;

[0030] Figure 7 This is the second schematic diagram of the drive component structure for a high ammonia nitrogen wastewater treatment process according to the present invention.

[0031] In the diagram: 1. Sedimentation tank; 11. Inlet pipe; 12. Drain pipe; 13. Conveying pipe; 2. Treatment tank; 21. Heating wire; 22. Conical platform; 23. Conveying trough; 24. Reaction chamber; 25. Filter plate; 26. Mounting plate; 27. Slide rod; 28. Return spring; 3. Condensation tank; 31. Drain pipe; 4. Medicine tank; 41. Medicine delivery pipe; 42. Ring pipe; 43. Nozzle; 5. Drive assembly; 51. Electric push rod; 52. Base plate; 53. Gear; 54. Motor; 55. Connecting rod; 56. Rotating plate; 57. Rotating ring; 58. Spring telescopic rod; 59. Protrusion; 510. Socket; 511. Socket; 512. Rotating groove. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Please see Figures 1 to 7 This invention provides a technical solution: a high ammonia nitrogen wastewater treatment process, the treatment process comprising the following steps:

[0034] S1. Primary treatment: Wastewater is sent into sedimentation tank 1 through inlet pipe 11. After natural sedimentation for a certain period of time, the wastewater from the primary treatment is sent to the top of treatment tank 2 through water pump and conveying pipe 13. The sediment in sedimentation tank 1 is sent out through drain pipe 12 at the bottom. The wastewater can be evenly transported to the inside of reaction chamber 24 through conical platform 22.

[0035] S2, Secondary treatment: While the wastewater in step S1 enters the reaction chamber 24, the chemical solution in the chemical tank 4 that reacts with the wastewater is transported through the chemical delivery pipe 41 and the ring pipe 42, and sprayed onto the top of the reaction chamber 24 through the nozzle 43. Then it enters the interior of the reaction chamber 24 and mixes with the wastewater. Through physicochemical reaction, the small particulate suspended solids in the wastewater are quickly precipitated, and the ammonia nitrogen concentration in the wastewater decreases after precipitation.

[0036] S3, Low-temperature evaporation and condensation: After the wastewater is mixed with chemical solution and precipitated, the bottom plate 52 is raised by the electric push rod 51, and the connecting rod 55 pushes the rotating plate 56 and the rotating ring 57 to slide along the inner wall of the reaction chamber 24, pushing the secondary treated wastewater in the reaction chamber 24 out from the top. The filter plate 25 blocks the sediment generated by the reaction from being sent out. The secondary treated wastewater is placed on the platform at the top of the treatment tank 2 and evaporated at low temperature by the electric heating wire 21. The evaporated gas then enters the condenser 3 through the gas valve of the condenser 3, and the condensed water is sent out through the drain pipe 31.

[0037] S4. Cleaning of reaction chamber 24: The rotating plate 56 rises and engages with the bottom of the filter plate 25. When the electric push rod 51 drives the rotating plate 56 and the connecting rod 55 to descend, the filter plate 25 will be pulled out of the bottom of the reaction chamber 24 at the same time, removing the sediment between the filter plate 25 and the rotating plate 56 to avoid the sediment from accumulating and being difficult to clean. After cleaning, the protrusion 59 is reset to the position corresponding to the insertion hole 511, and the filter plate 25 is moved to the top of the reaction chamber 24 by the elastic force of the reset spring 28.

[0038] A high-ammonia nitrogen wastewater treatment process includes a sedimentation tank 1, with an inlet pipe 11 at the top and a drain pipe 12 at the bottom. A treatment tank 2 is located on one side of the sedimentation tank 1, and a condensation tank 3 is fixed to the top of the treatment tank 2. A drain pipe 31 is provided on one side of the condensation tank 3. Multiple reaction chambers 24 are symmetrically arranged at their center inside the treatment tank 2, and filter plates 25 are provided on the top of each reaction chamber 24. A conical platform 22 is fixed at the center of the top of the treatment tank 2, and a conveying trough 23 is provided on the conical platform 22 facing each reaction chamber 24. The sedimentation tank 1 is connected to a conveying pipe 13 at its bottom, and the other end of the conveying pipe 13 passes through the processing tank 2, directly opposite the top of the conical platform 22. Inside the processing tank 2, a mounting plate 26 is fixed to the top of the filter plate 25, and sliding rods 27 are fixed to the bottom of both ends of the mounting plate 26. The filter plate 25 is slidably sleeved on the sliding rods 27. A return spring 28 is sleeved between the sliding rods 27 and the top of the filter plate 25. A rotating plate 56 is provided at the bottom of the reaction chamber 24, and a drive assembly 5 is provided at the bottom of the processing tank 2 to drive the rotating plate 56 to move and rotate. A ring-shaped heating wire 21 is installed on the inner wall of the top of the treatment tank 2. During the lifting and lowering movement of the base plate 52, the treatment tank 2 is supported by a frame around it and stands at a certain height above the ground. A certain gap is provided between the bottom of the treatment tank 2 and the ground to allow the base plate 52, connecting rod 55 and rotating plate 56 to move vertically without colliding with the ground. The sedimentation tank 1 uses natural sedimentation. Wastewater is sent into the sedimentation tank 1 through the inlet pipe 11. After a certain period of time, the primary treated wastewater is sent to the top of the treatment tank 2 through the water pump and conveying pipe 13. The sediment in the sedimentation tank 1 is then discharged through the water pump and conveying pipe 13. Wastewater is discharged through the bottom drain pipe 12 and can be evenly transported to the reaction chamber 24 through the conical platform 22. Inside the reaction chamber 24, after the wastewater is mixed with the chemical solution and precipitated, it is pushed back to the top of the treatment tank 2 by the drive component 5. It is then evaporated at low temperature by the heating wire 21. The evaporated gas then enters the condenser 3 through the gas valve of the condenser 3 (the condensation method is the same as the existing hot air condensation principle). The condensed water is sent out through the drain pipe 31. Then, the sediment in the reaction chamber 24 is sent out from the bottom to clean it and avoid sediment residue.

[0039] In this embodiment, a medicine tank 4 is fixed to one side of the treatment tank 2, and a medicine delivery pipe 41 is fixed to the outlet end of the medicine tank 4. An annular pipe 42 is fixed to the top of the treatment tank 2, and the other end of the medicine delivery pipe 41 is connected to the annular pipe 42. A nozzle 43 is installed in the middle of the mounting plate 26, and the top of the nozzle 43 is connected to the annular pipe 42. A mounting plate 26 for mounting a sliding rod 27 is set on the top of the filter plate 25, which is also used to install the nozzle 43, so that the direction of the nozzle 43 is facing the top of the reaction chamber 24. While the wastewater is fed into the reaction chamber 24 in batches, the medicine solution is fed into the reaction chamber 24 evenly and in equal amounts. The medicine solution that reacts with the wastewater in the medicine tank 4 is transported by the medicine delivery pipe 41 and the annular pipe 42, and sprayed onto the top of the reaction chamber 24 through the nozzle 43. Then it enters the interior of the reaction chamber 24 and mixes with the wastewater. Through physicochemical reaction, the small particulate suspended solids in the wastewater are rapidly precipitated, and the ammonia nitrogen concentration in the wastewater decreases after precipitation.

[0040] In this embodiment, the drive assembly 5 includes a base plate 52. The bottom of the processing box 2 is provided with the base plate 52, and electric push rods 51 are fixed on both sides of the processing box 2. The extended ends of the electric push rods 51 are fixed to the base plate 52. A connecting rod 55 is rotatably mounted on the top of the base plate 52 corresponding to the position of each rotating plate 56 via bearings, and the connecting rod 55 is fixedly connected to the bottom of the rotating plate 56. A gear 53 is installed on the bottom of the base plate 52 corresponding to the position of the connecting rod 55, and the gear 53 is fixed to the connecting rod 55. A motor 54 is fixed on the bottom of the base plate 52, and the output end of the motor 54 is fixed to the gear 53. A rotating ring 57 is rotatably mounted on the outer ring of the rotating plate 56 via bearings, and the rotating ring 57 slides sealed inside the reaction chamber 24. The rotating ring 57 is slidably sleeved on the sliding rod 27. In the initial state, the rotating plate 56 is located at the bottom of the reaction chamber 24, sealing the lower end of the reaction chamber 24 and forming a separate reaction space for wastewater and pharmaceuticals. After the liquid enters the reaction chamber 24 and mixes to form a precipitate, the electric push rod 51 controls the bottom plate 52 to rise, and the connecting rod 55 pushes the rotating plate 56 and the rotating ring 57 to slide along the inner wall of the reaction chamber 24, pushing the secondary treated wastewater in the reaction chamber 24 out from the top (during the movement of the rotating plate 56 along the reaction chamber 24, the rotating ring 57 on the outside of the rotating plate 56 slides into contact with the inner wall of the reaction chamber 24, pushing the wastewater in the reaction chamber 24 out from the top of the filter plate 25. At the same time, the precipitate produced by the reaction cannot pass through the filter plate 25, so it will stay between the filter plate 25 and the rotating plate 56. And the sealing of the reaction chamber 24 by the rotating ring 57 can prevent the wastewater from entering the reaction chamber 24 again). The filter plate 25 blocks the precipitate produced by the reaction from being sent out, and the secondary treated wastewater is placed on the platform at the top of the treatment tank 2. It is evaporated at low temperature by the electric heating wire 21. During this process, the wastewater is spread out on the top of the treatment tank 2, which can accelerate the evaporation efficiency.

[0041] In this embodiment, a spring telescopic rod 58 is fixed to the top of the rotating plate 56, and protrusions 59 are symmetrically fixed to the extended ends of the spring telescopic rod 58. A socket 510 is fixed to the bottom of the filter plate 25. The bottom of the socket 510 has an insertion hole 511 for inserting the extended ends of the spring telescopic rod 58 and the protrusions 59, and a rotating groove 512 is provided inside the socket 510. After the protrusions 59 are inserted, the motor 54 drives the gear 53 to rotate. Through the meshing transmission of multiple gears 53, the connecting rod 55, the rotating plate 56, and the spring telescopic rod 58 rotate. The protrusion 59 can rotate along the rotating groove 512 and be misaligned with the insertion position of the insertion hole 511, forming a snap-fit ​​between the spring telescopic rod 58 and the rotating groove 512. Thus, when the electric push rod 51 drives the rotating plate 56 and the connecting rod 55 to descend, the filter plate 25 will be pulled out of the bottom of the reaction chamber 24 at the same time, removing the sediment remaining between the filter plate 25 and the rotating plate 56, avoiding the accumulation of sediment that is difficult to clean. After cleaning, the protrusion 59 is reset to the position corresponding to the insertion hole 511, and the filter plate 25 is moved to the top of the reaction chamber 24 by the elastic force of the reset spring 28.

[0042] Wastewater is fed into sedimentation tank 1 through inlet pipe 11. After a certain period of time, the primary treated wastewater is pumped into the top of treatment tank 2 through water pump and delivery pipe 13. The sediment in sedimentation tank 1 is discharged through bottom drain pipe 12. Wastewater can be evenly delivered into reaction chamber 24 through conical platform 22. At the same time as the pre-treated wastewater enters reaction chamber 24, the chemical solution in chemical tank 4 that reacts with the wastewater is delivered through delivery pipe 41 and ring pipe 42 and sprayed onto the top of reaction chamber 24 through nozzle 43, and then enters the reaction chamber. Inside reaction chamber 24, wastewater mixes with the wastewater, and through physicochemical reactions, small suspended particles in the wastewater rapidly settle, resulting in a decrease in ammonia nitrogen concentration. Inside reaction chamber 24, after the wastewater and chemical solution mix and settle, and after the wastewater and solution enter reaction chamber 24 and form sediment, the electric push rod 51 controls the bottom plate 52 to rise. The connecting rod 55 pushes the rotating plate 56 and rotating ring 57 to slide along the inner wall of reaction chamber 24, pushing the secondary treated wastewater from the top of reaction chamber 24. The filter plate 25 prevents the sediment produced by the reaction from being discharged. The secondary treated wastewater is placed on the platform at the top of the treatment tank 2 and evaporated at low temperature by heating wire 21. During this process, the wastewater is spread out on the top of the treatment tank 2, which can accelerate the evaporation efficiency. Subsequently, the evaporated gas enters the condenser 3 through the gas valve. The condensed water is sent out through drain pipe 31. Motor 54 drives gear 53 to rotate. Through the meshing transmission of multiple gears 53, the connecting rod 55, rotating plate 56 and spring telescopic rod 58 rotate, and the protrusion 59 can move along... The rotating groove 512 rotates and is misaligned with the insertion position of the insertion hole 511, forming a snap-fit ​​between the spring telescopic rod 58 and the rotating groove 512. As a result, when the electric push rod 51 drives the rotating plate 56 and the connecting rod 55 to descend, the filter plate 25 will be pulled out of the bottom of the reaction chamber 24 at the same time, removing the sediment remaining between the filter plate 25 and the rotating plate 56, thus avoiding the accumulation of sediment that is difficult to clean. After cleaning, the protrusion 59 is reset to the position corresponding to the insertion hole 511, and the filter plate 25 is moved to the top of the reaction chamber 24 by the elastic force of the reset spring 28.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A process for treating high ammonia-nitrogen wastewater, characterized by: The processing process has the following steps: S1, primary treatment: the wastewater is sent into the sedimentation tank through the water inlet pipe, and after a certain time of natural sedimentation, the primary treated wastewater is sent into the top of the treatment tank through the water pump and the conveying pipe, the sediment in the sedimentation tank is sent out through the bottom sewage pipe, and the wastewater is uniformly conveyed into the reaction cavity through the conical table; S2, secondary treatment: while the wastewater in step S1 enters the reaction cavity, the chemical liquid in the medicine box reacts with the wastewater and is conveyed through the medicine conveying pipe and the annular pipe, sprayed on the top of the reaction cavity through the spray head, and then mixed with the wastewater in the reaction cavity, so that the small particle suspended matter in the wastewater is quickly precipitated through the physicochemical reaction, and the ammonia nitrogen concentration of the wastewater after precipitation is reduced; S3, low-temperature evaporation and condensation: after the wastewater is precipitated by mixing with the chemical liquid, the bottom plate is raised by the electric push rod, the connecting rod pushes the rotating plate and the rotating ring to slide along the inner wall of the reaction cavity, and the secondary treated wastewater in the reaction cavity is pushed out from the top, wherein the filter plate blocks the sediment generated by the reaction and is sent out, the secondary treated wastewater is placed on the table at the top of the treatment tank, and the low-temperature evaporation is carried out through the electric heating wire, then the evaporated gas enters the condensation tank through the opening of the gas valve, and the condensed water is sent out through the drain pipe; S4, reaction cavity cleaning: the rotating plate is clamped with the bottom of the filter plate by rising, when the rotating plate and the connecting rod are lowered by the electric push rod, the filter plate will be pulled out of the bottom of the reaction cavity at the same time, the sediment remaining between the filter plate and the rotating plate is taken out, so that the sediment is difficult to clean, after the cleaning is finished, the protrusion is reset to the position corresponding to the insertion hole, and the filter plate is moved to the top of the reaction cavity by the elastic force of the reset spring; In step S1, the delivery of the wastewater after primary treatment, a plurality of delivery grooves facing the reaction cavity are formed on the surface of the conical table, the wastewater is sent out from the delivery pipe and falls on the top of the conical table, and then is uniformly delivered to the inside of each reaction cavity through the delivery grooves, in step S2, the delivery of the chemical liquid, the top of the filter plate is provided with a mounting plate for mounting the sliding rod, which is also used for mounting the spray head, so that the direction of the spray head is opposite to the top of the reaction cavity, while the wastewater is sent into the reaction cavity in batches, the chemical liquid is uniformly and equally sent into the reaction cavity, in step S2, before the wastewater is sent into the reaction cavity, the rotating plate is initially located at the bottom of the reaction cavity, the rotating ring slides along the sliding rod and the inner wall of the reaction cavity to seal the lower end of the reaction cavity, forming a separate reaction space, in step S3, after the wastewater is reacted, the extension end of the spring telescopic rod at the top of the rotating plate is inserted into the insertion hole in the socket, wherein the rotating plate slides along the sliding rod through the rotating ring on the outside, in step S4, the clamping of the filter plate and the rotating plate, a rotating groove is arranged in the socket, an insertion hole is arranged at the bottom, and the extension end of the spring telescopic rod is provided with a protrusion which can be inserted into the insertion hole and then rotated, the protrusion is located in the rotating groove and is misaligned with the insertion position of the insertion hole, forming the clamping of the spring telescopic rod and the rotating groove; The filter plate is slidably sleeved on the sliding rod, the reset spring is sleeved between the mounting plate and the top of the filter plate, the bottom plate is arranged at the bottom of the treatment tank, the electric push rod is fixed on the bottom plate, the connecting rod is rotatably installed on the top of the bottom plate through the bearing and corresponds to each rotating plate, the connecting rod is fixedly connected with the bottom of the rotating plate, and the rotating ring is rotatably installed on the outer circle of the rotating plate through the bearing.

2. A high ammonia nitrogen wastewater treatment process according to claim 1, characterized in that: In the process of moving the rotating plate along the reaction cavity, the rotating ring outside the rotating plate is in sliding contact with the inner wall of the reaction cavity, and the wastewater in the reaction cavity is pushed out from the upper end of the filter plate, while the precipitate produced by the reaction cannot pass through the filter plate and thus stays between the filter plate and the rotating plate. The sealing of the reaction cavity by the rotating ring prevents the wastewater from entering the reaction cavity again.

3. A high ammonia nitrogen wastewater treatment process according to claim 1, characterized in that: When the spring telescopic rod is inserted, the gear is driven to rotate by the motor, and the meshing transmission of multiple gears enables the connecting rod, the rotating plate and the spring telescopic rod to rotate. The rotating plate and the rotating ring rotate, and the rotating ring can continue to slide up and down along the slide rod, so that the filter plate and the rotating plate are moved out of the reaction cavity together by the electric push rod to send out the residual precipitate for cleaning. The bottom plate is provided with a gear at the position corresponding to the connecting rod, and the gear is fixed with the connecting rod. The bottom plate is fixed with a motor, and the output end of the motor is fixed with the gear.

4. A high ammonia nitrogen wastewater treatment process according to claim 3, characterized in that: After the cleaning of the precipitate in the reaction cavity is completed, the spring telescopic rod and the protrusion are rotated to reset, are sent out along the insertion hole, and are separated from the filter plate. The filter plate is lifted along the slide rod by the elastic force of the reset spring and is moved to the top of the reaction cavity for the secondary treatment of the next group of wastewater.

5. The process for treatment of high ammonia nitrogen wastewater as claimed in claim 4 wherein: In the process of lifting and moving the bottom plate, the treatment box is supported by the support frame on the ground at a certain height, and a certain distance is provided between the bottom of the treatment box and the ground to enable the vertical movement of the bottom plate, the connecting rod and the rotating plate without collision with the ground.

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