High-ammonia-nitrogen high-COD (Chemical Oxygen Demand) wastewater treatment device

Abstract

The utility model provides a high-ammonia-nitrogen high-COD (Chemical Oxygen Demand) wastewater treatment device which comprises a bottom plate, a device body is arranged at the top of the bottom plate, a filling box is arranged on the outer side of the device body, a sealing element is arranged on the outer side of the filling box, a connecting pipe is fixedly connected to the outer side of the filling box, and the connecting pipe is fixedly connected with the bottom plate. A sealing piece is arranged on the outer side of the connecting pipe and comprises a fixing frame fixedly connected to the top of the filling box, a hydraulic rod is fixedly connected to the outer side of the fixing frame, a sealing plate is arranged on the outer side of the hydraulic rod, a pipeline is fixedly connected to the interior of the filling box, and a connecting shell is fixedly connected to the interior of the pipeline. According to the high-ammonia-nitrogen high-COD wastewater treatment device provided by the utility model, the problems that a pipeline needs to be mounted inside a shell when liquid medicine is injected into an existing device, the operation is inconvenient, and hydrochloric acid has pungent smell and is easy to cause harm to workers when being dismounted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device for high ammonia nitrogen and high COD wastewater. Background Art

[0002] In the steel industry, the wastewater generated by sintering and acid making usually has the characteristics of high ammonia nitrogen, high chloride, high COD, high sulfate radical and high fluoride, and is relatively difficult to treat. In the treatment of such sewage in the prior art, a conventional ammonia nitrogen stripping process is adopted for treatment, and the stripped ammonia nitrogen is further absorbed by water.

[0003] The patent document with the publication number of CN217173325U discloses a "wastewater treatment device for high ammonia nitrogen, high chloride, high COD and high fluoride". The sealing door plate is slidably connected through the first side plate and the sliding rod, and is also threadedly connected through the second side plate and the threaded rod. When the threaded rod rotates, the sealing door plate can move up and down. When the sealing door plate moves upward, the external pipeline can be connected to the liquid adding pipeline in the lower shell. After the liquid adding is completed, when the driving motor rotates in the reverse direction, the sealing door plate is quickly closed. However, when adding the liquid medicine, the pipeline needs to be installed inside the shell, which is inconvenient to operate. Moreover, hydrochloric acid has an irritating smell and is easy to cause harm to the staff during disassembly. Therefore, it is necessary to provide a wastewater treatment device for high ammonia nitrogen and high COD to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a wastewater treatment device for high ammonia nitrogen and high COD, which is easy to use.

[0005] The wastewater treatment device for high ammonia nitrogen and high COD provided by the utility model includes a bottom plate. A device body is arranged on the top of the bottom plate. A liquid adding box is arranged on the outer side of the device body. A sealing member is arranged on the outer side of the liquid adding box. A connecting pipe is fixedly connected to the outer side of the liquid adding box. A closing member is arranged on the outer side of the connecting pipe. The sealing member includes a fixing frame fixedly connected to the top of the liquid adding box. A hydraulic rod is fixedly connected to the outer side of the fixing frame. A sealing plate is arranged on the outer side of the hydraulic rod. A pipeline is fixedly connected to the inside of the liquid adding box. A connecting shell is fixedly connected to the inside of the pipeline. The piston rod of the hydraulic rod is fixedly connected with a connecting rod. The bottom of the connecting rod is fixedly connected with the top of the sealing plate. The closing member includes a fixing sleeve fixedly connected to the top of the connecting pipe. A motor is fixedly connected to the top of the fixing sleeve. The output end of the motor is fixedly connected with a connecting rod. A baffle is fixedly connected to the outer side of the connecting rod. A sliding rod is fixedly connected to the outer side of the sealing plate. A groove is formed in the inside of the connecting shell. The sliding rod slides in the groove.

[0006] To improve the stability of the baffle during rotation, as a high-ammonia-nitrogen and high-COD wastewater treatment device provided by the present utility model, preferably, the bottom of the connecting rod is rotatably connected to a rotating shaft, and the rotating shaft is fixed inside the connecting pipe.

[0007] To fix the motor and improve its stability, as a high-ammonia-nitrogen and high-COD wastewater treatment device provided by the present utility model, preferably, the outside of the motor is fixedly connected to a support rod, and the support rod is fixedly connected to the outside of the filling tank.

[0008] Compared with the prior art, the beneficial effects of the present utility model are:

[0009] For this high-ammonia-nitrogen and high-COD wastewater treatment device, after the liquid medicine is filled, the pipeline and the filling tank are sealed by the sealing member, and then the connecting pipe is sealed by the closing member to prevent the irritating gas of the liquid medicine from overflowing. Just separate the medicine adding pipeline from the connecting pipe, which solves the problem that the existing device needs to install the pipeline inside the housing when filling the liquid medicine, the operation is inconvenient, and hydrochloric acid has an irritating smell, which is easy to cause harm to the staff during disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of a preferred embodiment of the high-ammonia-nitrogen and high-COD wastewater treatment device provided by the present utility model;

[0011] Figure 2 It is a schematic structural diagram of the filling tank and the fixing frame of the present utility model;

[0012] Figure 3 It is a schematic structural diagram of the interior of the filling tank of the present utility model;

[0013] Figure 4 It is a schematic structural diagram of the sealing plate of the present utility model;

[0014] Figure 5 It is a schematic structural diagram of the closing member of the present utility model.

[0015] Reference numerals in the drawings: 1, bottom plate; 2, device body; 3, filling tank; 4, sealing member; 401, fixing frame; 402, hydraulic rod; 403, sealing plate; 404, pipeline; 405, connecting shell; 5, connecting pipe; 6, closing member; 601, fixing sleeve; 602, motor; 603, connecting rod; 604, baffle; 7, connecting rod; 8, sliding rod; 9, rotating shaft; 10, support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Please refer to Figure 1 , Figure 2 ,Figure 3 , Figure 4 and Figure 5 , where Figure 1 is a schematic structural view of a preferred embodiment of the high-ammonia-nitrogen and high-COD wastewater treatment device provided by the present utility model; Figure 2 is a schematic structural view of the liquid filling tank and the fixing frame of the present utility model; Figure 3 is a schematic structural view of the interior of the liquid filling tank of the present utility model; Figure 4 is a schematic structural view of the sealing plate of the present utility model; Figure 5 is a schematic structural view of the closing member of the present utility model. A high-ammonia-nitrogen and high-COD wastewater treatment device includes a bottom plate 1. A device body 2 is arranged on the top of the bottom plate 1. The device body 2 is installed on the upper part of the bottom plate 1, and the wastewater is purified by the device body 2. A liquid filling tank 3 is arranged on the outer side of the device body 2. The liquid filling tank 3 is welded on the outer side of the medicine tank of the device body 2, and the liquid filling tank 3 is used to fill the device body 2 with liquid medicine. A sealing member 4 is arranged on the outer side of the liquid filling tank 3. The liquid filling tank 3 is closed by setting the sealing member 4 to prevent the liquid medicine from overflowing. A connecting pipe 5 is fixedly connected to the outer side of the liquid filling tank 3. The connecting pipe 5 is welded on the outer side of the liquid filling tank 3. The outside pipeline is communicated with the liquid filling tank 3 through the connecting pipe 5. A closing member 6 is arranged on the outer side of the connecting pipe 5. The connecting pipe 5 is closed by setting the closing member 6 to prevent the pungent smell of the liquid medicine from overflowing.

[0018] In this embodiment: Connect the medicine adding pipeline to the connecting pipe 5, open the closing member 6 to open the connecting pipe 5, open the closing member 6 to open the liquid filling tank 3, and the liquid medicine is filled into the device body 2 through the connecting pipe 5 and the liquid filling tank 3 for reaction.

[0019] As a technical optimization scheme of the present utility model, the sealing member 4 includes a fixing frame 401 fixedly connected to the top of the liquid filling tank 3. The fixing frame 401 is welded to the top of the liquid filling tank 3. A hydraulic rod 402 is fixedly connected to the outer side of the fixing frame 401. The hydraulic rod 402 is fixedly connected to the top of the fixing frame 401 through bolts. A sealing plate 403 is arranged on the outer side of the hydraulic rod 402. A connecting rod 7 is fixedly connected to the piston rod of the hydraulic rod 402. The bottom of the connecting rod 7 is fixedly connected to the top of the sealing plate 403. The connecting rod 7 is welded to the piston rod of the hydraulic rod 402. The sealing plate 403 is welded to the bottom of the connecting rod 7. The connecting rod 7 and the sealing plate 403 are driven to move by the hydraulic rod 402. A pipeline 404 is fixedly connected to the inside of the liquid filling tank 3. The pipeline 404 is welded to the inside of the liquid filling tank 3. A connecting shell 405 is fixedly connected to the inside of the pipeline 404. The connecting shell 405 is welded to the inside of the pipeline 404. An opening adapted to the sealing plate 403 is formed in the inside of the connecting shell 405. The sealing plate 403 is clamped into the inside of the connecting shell 405 to close the pipeline 404.

[0020] In this embodiment: The hydraulic rod 402 drives the connecting rod 7 to move, the connecting rod 7 drives the sealing plate 403 to move, and the sealing plate 403 is clamped inside the connecting shell 405 to seal the pipeline 404.

[0021] As a technical optimization solution of the present utility model, the closing member 6 includes a fixed sleeve 601 fixedly connected to the top of the connecting pipe 5. The fixed sleeve 601 is welded to the top of the connecting pipe 5. A motor 602 is fixedly connected to the top of the fixed sleeve 601. The motor 602 is welded to the top of the fixed sleeve 601, and the output end is inserted inside the fixed sleeve 601. The output end of the motor 602 is fixedly connected to a connecting rod 603. The connecting rod 603 is welded to the output end of the motor 602. A baffle 604 is fixedly connected to the outside of the connecting rod 603. The baffle 604 is welded to the outside of the connecting rod 603.

[0022] In this embodiment: The motor 602 drives the connecting rod 603 to rotate, the connecting rod 603 drives the baffle 604 outside it to rotate inside the connecting pipe 5, and by adjusting the position of the baffle 604, the purpose of opening and closing the connecting pipe 5 is achieved.

[0023] As a technical optimization solution of the present utility model, sliding rods 8 are fixedly connected to the outside of the sealing plate 403. The sliding rods 8 are welded to both sides of the sealing plate 403. Grooves are formed inside the connecting shell 405, and the sliding rods 8 slide inside the grooves. When the sealing plate 403 moves, it drives the sliding rods 8 to slide inside the grooves, improving the stability of the sealing plate 403.

[0024] In this embodiment: By the sliding rods 8 sliding inside the grooves, the stability of the sealing plate 403 is improved.

[0025] As a technical optimization solution of the present utility model, the bottom of the connecting rod 603 is rotatably connected to a rotating shaft 9. The rotating shaft 9 is fixed inside the connecting pipe 5. The rotating shaft 9 is welded inside the connecting pipe 5, and the bottom of the connecting rod 603 rotates inside the rotating shaft 9.

[0026] In this embodiment: When the connecting rod 603 drives the sealing plate 403 to rotate, it rotates inside the rotating shaft 9, improving the stability of the connecting rod 603 and the sealing plate 403.

[0027] As a technical optimization solution of the present utility model, a support rod 10 is fixedly connected to the outside of the motor 602. The support rod 10 is welded to the outside of the motor 602, and the other end is welded to the outside of the filling tank 3. The support rod 10 is fixedly connected to the outside of the filling tank 3.

[0028] In this embodiment: The support rod 10 is used to reinforce the motor 602, improving the stability of the motor 602 during operation.

[0029] The working principle of a high-ammonia-nitrogen and high-COD wastewater treatment device provided by the present utility model is as follows:

[0030] When treating wastewater, connect the chemical dosing pipeline to the connecting pipe 5. Use the motor 602 to drive the connecting rod 603 to rotate. The connecting rod 603 drives the baffle 604 outside it to rotate inside the connecting pipe 5, opening the connecting pipe 5. At the same time, drive the connecting rod 7 to move upward through the hydraulic rod 402. The connecting rod 7 drives the sealing plate 403 to move inside the connecting shell 405, moving the sealing plate 403 above the pipeline 404, thus opening the pipeline 404. The chemical liquid can enter the interior of the device body 2 from the pipeline 404. The working principle of the device body 2 is the same as that of the evaporation treatment device in the comparative case and will not be elaborated here. After the chemical liquid is filled, seal the pipeline 404 and the filling tank 3 through the seal 4, and then seal the connecting pipe 5 with the sealing member 6 to prevent the irritating gas of the chemical liquid from overflowing. Just separate the chemical dosing pipeline from the connecting pipe 5.

[0031] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A high-ammonia-nitrogen and high-COD wastewater treatment device, characterized in that: The invention comprises a bottom plate (1), a device body (2) is arranged on the top of the bottom plate (1), a filling box (3) is arranged on the outside of the device body (2), a sealing member (4) is arranged on the outside of the filling box (3), a connecting pipe (5) is fixedly connected to the outside of the filling box (3), and a closing member (6) is arranged on the outside of the connecting pipe (5); the sealing member (4) comprises a fixing frame (401) fixedly connected to the top of the filling box (3), a hydraulic rod (402) is fixedly connected to the outside of the fixing frame (401), a sealing plate (403) is arranged on the outside of the hydraulic rod (402), and the filling box ( 3) is fixedly connected to the inside of the pipe (404), and the inside of the pipe (404) is fixedly connected to the connecting shell (405); the piston rod of the hydraulic rod (402) is fixedly connected to the connecting rod (7), and the bottom of the connecting rod (7) is fixedly connected to the top of the sealing plate (403); the closing member (6) includes a fixing sleeve (601) fixedly connected to the top of the connecting pipe (5), the top of the fixing sleeve (601) is fixedly connected to the motor (602), the output end of the motor (602) is fixedly connected to the connecting rod (603), and the outer side of the connecting rod (603) is fixedly connected to the baffle (604).

2. The high-ammonia-nitrogen and high-COD wastewater treatment device according to claim 1 is characterized in that: A sliding rod (8) is fixedly connected to the outer side of the sealing plate (403), and a groove is provided inside the connecting shell (405), and the sliding rod (8) slides inside the groove.

3. The high-ammonia-nitrogen and high-COD wastewater treatment device according to claim 1 is characterized in that: The bottom of the connecting rod (603) is rotatably connected to a rotating shaft (9), and the rotating shaft (9) is fixed inside the connecting pipe (5).

4. The high-ammonia-nitrogen and high-COD wastewater treatment device according to claim 1, characterized in that: The outer side of the motor (602) is fixedly connected to a support rod (10), and the support rod (10) is fixedly connected to the outer side of the filling box (3).

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