A multi-stage wastewater treatment device for continuous processing

Abstract

The application discloses a kind of continuous processing wastewater multistage processing device, belong to wastewater treatment field, including support frame, the surface of the support frame is equipped with multistage processing mechanism, the multistage processing mechanism includes water-oil separation unit, chemical treatment unit, biological treatment unit and decoloring treatment unit, the water-oil separation unit includes the separation tank of fixedly connected to support frame upper surface one side;Through the cooperation of above each device, by the setting of electric push rod, push other polypropylene fiber assembly and socket joint in the surface of threaded rod, so that threaded rod drives other polypropylene fiber to move to the middle part of separation tank, used polypropylene fiber assembly is moved to the top of sealing box and no longer with threaded rod threaded connection, based on the oil that spray supercritical carbon dioxide is dissolved to the surface of used polypropylene fiber assembly attachment, avoid the influence that the oil attached to polypropylene fiber assembly is caused to polypropylene fiber again use.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically a multi-stage wastewater treatment device for continuous treatment. Background Technology

[0002] Wastewater refers to the total amount of water discharged during residential activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other non-useful water such as initial rainwater runoff into drainage pipes and canals. Generally, it refers to water that cannot be recycled after certain technical treatment or water that cannot be purified to meet certain standards after primary pollution. Industrial wastewater flows directly into canals, rivers, and lakes, polluting surface water. If it is highly toxic, it can lead to the death or even extinction of aquatic plants and animals. Industrial wastewater may also seep into groundwater and pollute it. If nearby residents use polluted surface water or groundwater for domestic use, it will endanger their health, and in severe cases, cause death.

[0003] An investigation revealed that a Chinese invention patent (publication number: CN117049752B) discloses a multi-stage wastewater treatment device for continuous processing, including a fixed frame, a cylinder, a flow guide, and a drain pipe. This invention allows sediment in the wastewater to remain on the filter cloth of the filter frame. The wastewater after sediment removal is located between the filter frame and the partition. The wastewater after sediment removal is discharged through the drain pipe for unified treatment. An external cleaning device removes the sediment from the filter cloth of the filter frame and collects it. Then, the drive motor is turned on, and the wastewater is treated continuously in a cyclical manner, improving wastewater treatment efficiency. This invention solves the problems of low wastewater treatment efficiency caused by waiting for the reaction to complete before continuing subsequent treatment when using a wastewater tank, and the need to pause wastewater treatment when emptying sediment from the wastewater tank.

[0004] Although the aforementioned patent improves wastewater treatment efficiency by continuously treating wastewater through the design of a filter frame and a drive motor, and scrapes away residual sediment on the inner wall of the cylinder through the filter frame to prevent sediment from remaining on the inner wall of the cylinder, the wastewater treatment process is incomplete because the wastewater contains oil, which the aforementioned wastewater treatment cannot remove.

[0005] Most existing wastewater treatment devices typically pass wastewater through polypropylene fibers, where oil is absorbed by the fibers and water passes through the fibers for the next treatment step, separating water and oil in the wastewater. However, after prolonged use, the polypropylene fibers absorb a large amount of oil on their surface, causing blockage between the fibers and reducing the speed at which water passes through the polypropylene fibers. This affects the efficiency of the polypropylene fibers in separating water and oil, ultimately impacting the wastewater treatment rate of multi-stage wastewater treatment devices.

[0006] Therefore, the present invention provides a multi-stage wastewater treatment device for continuous treatment to solve the above-mentioned problems. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] This invention provides a multi-stage wastewater treatment device for continuous treatment, aiming to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage wastewater treatment device for continuous treatment, comprising a support frame, wherein a multi-stage treatment mechanism is installed on the surface of the support frame, the multi-stage treatment mechanism comprising a water-oil separation unit, a chemical treatment unit, a biological treatment unit, and a decolorization treatment unit;

[0011] The water-oil separation unit includes a separation tank fixedly connected to one side of the upper surface of the support frame. Both sides of the separation tank are slidably connected to a sealing box. A sealing plate is slidably connected inside the sealing box. A return spring fixedly connected to the sealing box is fixedly connected to both edges of one side of the sealing plate. A pressing plate is fixedly connected to the lower surface of the sealing plate.

[0012] The surface of the separation tank is fixedly connected to a collection box corresponding to the sealing box. Both sides inside the collection box are fixedly connected to push plates corresponding to the abutment plates. The upper surface of the separation tank is fixedly connected to an existing spray system, and the liquid sprayed by the spray system is supercritical carbon dioxide.

[0013] As a preferred technical solution of this application, the water-oil separation unit further includes several polypropylene fiber assemblies slidably connected to the inside of the separation tank, one of which has a threaded rod rotatably connected to the surface of its surface, and one end of the threaded rod is fixedly connected to a drive motor fixedly connected to the separation tank.

[0014] As a preferred technical solution of this application, the water-oil separation unit further includes a servo motor fixedly connected inside the separation tank. The output end of the servo motor is fixedly connected to a bidirectional threaded rod that is threadedly connected to two sealing boxes. The opposite sides of the two sealing boxes are slidably connected to a guide rod fixedly connected to the separation tank. Both sides of the bottom wall of the separation tank are fixedly connected to electric push rods that are in contact with the corresponding polypropylene fiber components.

[0015] As a preferred technical solution of this application, the water-oil separation unit further includes an inlet pipe and a drain pipe that are fixedly connected to one side and the lower surface of the separation tank, respectively. The inlet pipe is connected to an external wastewater conveying device, and a three-way water pipe is fixedly connected to one end of the drain pipe. Solenoid valves are fixedly connected to both ends of the three-way water pipe, and one end of one of the solenoid valves is fixedly connected to a conveying pipe that is connected to the inlet pipe.

[0016] As a preferred technical solution of this application, the chemical treatment unit includes a water quality tester fixedly connected to one end of another solenoid valve. A connecting pipe is fixedly connected to one side of the water quality tester. An isolation tank connected to the connecting pipe is fixedly connected to one end of the connecting pipe. A treatment sub-unit is installed inside the isolation tank. An inlet pipe is fixedly connected to one side of the upper surface of the isolation tank.

[0017] As a preferred technical solution of this application, the processing subunit includes a drive rod rotatably connected to the inside of the isolation tank via a bearing seat. Isolation plates are fixedly connected to the surface of the drive rod in a ring array. A sealed space is isolated on the opposite sides of every two isolation plates. A DC motor is fixedly connected to the opposite sides of the two isolation plates. A rotating rod is fixedly connected to the output end of the DC motor. A stirring blade rotatably connected to the inside of the sealed space is fixedly connected to the surface of the rotating rod in a ring array.

[0018] As a preferred technical solution of this application, the chemical treatment unit further includes a support frame fixedly connected to the upper surface of the isolation tank. The support frame has a chemical raw material storage tank connected in a path array to communicate with the sealed space. The chemical raw material storage tank stores chemical raw materials for treating wastewater. The lower surface of the isolation tank has a discharge trough corresponding to the sealed space. One end of the drive rod is fixedly connected to a drive motor that is fixedly connected to the isolation tank.

[0019] As a preferred technical solution of this application, the biological treatment unit includes an infusion pipe fixedly connected to the isolation tank and communicating with the corresponding sealed space. One end of the infusion pipe is fixedly connected to an anaerobic tank communicating with the infusion pipe. The anaerobic tank is equipped with an anaerobic bioreactor, microorganisms and a color sensor for biodegrading the microorganisms in the wastewater entering the anaerobic tank and further treating the wastewater.

[0020] As a preferred technical solution of this application, the decolorization treatment unit includes electric valves fixedly connected to the lower surface of the anaerobic chamber in a path array, one end of several electric valves is fixedly connected to the decolorization chamber, the interior of the decolorization chamber is equipped with existing electrochemical oxidation equipment for decolorizing the wastewater entering the decolorization chamber, and temperature sensors are fixedly connected to the interior of the decolorization chamber and the surface of the anaerobic chamber.

[0021] As a preferred technical solution of this application, a drain pipe is fixedly connected to one side of both the anaerobic chamber and the decolorization chamber, and a storage tank is fixedly connected to one end of both drain pipes. A liquid outlet pipe is fixedly connected to one side of the storage tank, and the anaerobic chamber, the decolorization chamber, and the isolation tank are all fixedly connected to the upper surface of the support frame.

[0022] (III) Beneficial Effects

[0023] 1. Through the coordinated operation of the water-oil separation unit, chemical treatment unit, and treatment sub-unit, wastewater is discharged into the separation tank. Based on the cooperation of the drive motor and the threaded rod, the polypropylene fiber assembly moves to the middle of the separation tank to separate the water and oil in the wastewater entering the separation tank. The electric push rod pushes other polypropylene fiber assemblies to move and fit onto the surface of the threaded rod, so that the threaded rod drives other polypropylene fibers to the middle of the separation tank. The used polypropylene fiber assembly moves to the top of the sealing box and is no longer threaded to the threaded rod, so that the two sealing boxes come closer to each other and seal the top of the separation tank. The oil adhering to the surface of the used polypropylene fiber assembly is dissolved by spraying supercritical carbon dioxide, so as to avoid the oil adhering to the polypropylene fiber assembly from affecting the reuse of polypropylene fibers.

[0024] 2. Based on the cooperation of the collection box and the push plate, after the sealing box seals the top of the separation tank, the solution that dissolves the oil on the polypropylene fiber component falls into the inside of the sealing box. After cleaning the polypropylene fiber component, the servo motor is started, which causes the bidirectional threaded rod to drive the two sealing boxes away from each other, so that the pressing plate and the push plate are in contact. The pressing plate drives the sealing plate to insert into the inside of the sealing box, so that the solution inside the sealing box enters the collection box. The solution is collected, processed and reused, thus avoiding waste of the solution.

[0025] 3. Through the cooperation of the chemical treatment unit and the treatment sub-unit, the wastewater entering the connecting pipe after passing through the separation tank is tested by a water quality tester. Based on the test results, the raw materials in the corresponding chemical raw material storage tank are injected into the sealed space. At the same time, the wastewater enters the corresponding sealed space. The DC motor is started to drive the stirring blades to stir the chemical raw materials and wastewater, so that the wastewater can fully react and precipitate in the sealed space, and the chemical raw materials in the wastewater are removed. The wastewater is further treated. The drive motor drives the drive rod and the isolation plate to rotate, so that the sediment in the corresponding sealed space is discharged through the discharge chute, which facilitates the alternating use of multiple sealed spaces.

[0026] 4. Based on the cooperation of the biological treatment unit and the decolorization treatment unit, the wastewater is biodegraded and decolorized, further treating the wastewater and making the wastewater treatment more thorough. In addition, through the setting of electric valve, after the wastewater enters the anaerobic tank, the color sensor detects the color of the wastewater. When the wastewater color exceeds the threshold, the electric valve is activated, allowing the wastewater to enter the decolorization tank for decolorization. When the wastewater color does not exceed the threshold, the treated wastewater is discharged into the storage tank through the corresponding drain pipe for storage. This achieves diversion during the biodegradation and decolorization treatment of wastewater, reducing the operating pressure of the decolorization treatment unit.

[0027] 5. Based on the fact that wastewater flows through separation tanks, isolation tanks, anaerobic / decolorization tanks, and storage tanks, the wastewater is continuously transported and treated, thus achieving continuous wastewater treatment. Furthermore, through the cooperation of water-oil separation units, chemical treatment units, biological treatment units, and decolorization treatment units, the wastewater is treated in stages, achieving multi-stage treatment of wastewater, thereby making the wastewater treatment more thorough. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a multi-stage wastewater treatment device for continuous treatment.

[0029] Figure 2 A second-view structural schematic diagram of a multi-stage wastewater treatment device for continuous treatment.

[0030] Figure 3 A third-view structural schematic diagram of a multi-stage wastewater treatment device for continuous treatment.

[0031] Figure 4 This is a schematic diagram of the water-oil separation unit in a multi-stage wastewater treatment device for continuous treatment.

[0032] Figure 5 This is a schematic diagram of the separation tank, collection box, and polypropylene fiber assembly in a continuous multi-stage wastewater treatment device.

[0033] Figure 6 This is a schematic diagram of the structure of a collection box, a sealing box, and a sealing plate in a continuous multi-stage wastewater treatment device.

[0034] Figure 7 This is a schematic diagram of the chemical treatment unit in a continuous multi-stage wastewater treatment device.

[0035] Figure 8 This is a second-view structural schematic diagram of a chemical treatment unit in a continuous multi-stage wastewater treatment device.

[0036] Figure 9This is a schematic diagram of the biological treatment unit and the decolorization treatment unit in a continuous multi-stage wastewater treatment device.

[0037] In the picture:

[0038] 1. Support frame; 2. Water-oil separation unit; 201. Separation tank; 202. Sealing box; 203. Sealing plate; 204. Return spring; 205. Collection box; 206. Push plate; 207. Threaded rod; 208. Drive motor; 209. Servo motor; 210. Bidirectional threaded rod; 211. Electric push rod; 212. Drain pipe; 213. Clamping plate; 214. Polypropylene fiber assembly; 215. Water inlet pipe; 216. Conveying pipe; 217. T-shaped water pipe; 218. Solenoid valve; 3. Chemical treatment unit 301. Water quality tester; 302. Connecting pipe; 303. Isolation tank; 304. Support frame; 305. Chemical raw material storage tank; 306. Discharge trough; 307. Drive motor II; 4. Biological treatment unit; 401. Infusion pipe; 402. Anaerobic chamber; 5. Decolorization treatment unit; 501. Electric valve; 502. Decolorization chamber; 503. Temperature sensor; 6. Processing subunit; 601. Drive rod; 602. Isolation plate; 603. DC motor; 604. Rotating rod; 7. Drain pipe; 8. Storage tank. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] This invention provides a multi-stage wastewater treatment device for continuous treatment, with reference to... Figures 1-9 The present invention provides three embodiments:

[0041] Example 1:

[0042] The continuous wastewater multi-stage treatment device includes a support frame 1, and a multi-stage treatment mechanism is installed on the surface of the support frame 1. The multi-stage treatment mechanism includes a water-oil separation unit 2, a chemical treatment unit 3, a biological treatment unit 4, and a decolorization treatment unit 5.

[0043] The water-oil separation unit 2 includes a separation tank 201 fixedly connected to one side of the upper surface of the support frame 1. Both sides of the surface of the separation tank 201 are slidably connected to a sealing box 202. A sealing plate 203 is slidably connected inside the sealing box 202. A return spring 204 fixedly connected to the sealing box 202 is fixedly connected to both edges of one side of the sealing plate 203. Based on the elastic force of the return spring 204, the sealing plate 203 can automatically return to its original position after being moved, which facilitates the subsequent use of the sealing plate 203. A pressing plate 213 is fixedly connected to the lower surface of the sealing plate 203.

[0044] A collection box 205 corresponding to the sealing box 202 is fixedly connected to the surface of the separation tank 201. Push plates 206 corresponding to the pressing plates 213 are fixedly connected to both sides inside the collection box 205. An existing spray system is fixedly connected to the upper surface of the separation tank 201. The spray system sprays supercritical carbon dioxide. The supercritical carbon dioxide is sprayed into the interior of the separation tank 201 through the spray system to dissolve the oil adhering to the surface of the polypropylene fiber assembly 214, thereby preventing the oil from clogging the pores of the polypropylene fiber assembly 214. This allows the polypropylene fiber assembly 214 to continuously separate water and oil from the wastewater.

[0045] The water-oil separation unit 2 also includes several polypropylene fiber assemblies 214 slidably connected inside the separation tank 201. One of the polypropylene fiber assemblies 214 has a threaded rod 207 rotatably connected to the surface of the separation tank 201. One end of the threaded rod 207 is fixedly connected to a drive motor 208 fixedly connected to the separation tank 201. By starting the drive motor 208, its output end drives the threaded rod 207 to rotate inside the separation tank 201, thereby driving the polypropylene fiber assembly 214 to move in the separation tank 201. This allows several polypropylene fiber assemblies 214 to be used alternately, thus not only avoiding the clogging of the polypropylene fiber assembly 214 caused by continuous use of a single polypropylene fiber assembly 214, but also allowing time for the oil on the polypropylene fiber assembly 214 to dissolve after use, making the polypropylene fiber assembly 214 more convenient to use.

[0046] The water-oil separation unit 2 also includes a servo motor 209 fixedly connected inside the separation tank 201. The output end of the servo motor 209 is fixedly connected to a bidirectional threaded rod 210 that is threadedly connected to two sealing boxes 202. The opposite sides of the two sealing boxes 202 are slidably connected to a guide rod that is fixedly connected to the separation tank 201.

[0047] When the polypropylene fiber assembly 214 is moved above the separation tank 201, the servo motor 209 is started during the process of dissolving the oil on the surface of the polypropylene fiber assembly 214 by spraying supercritical carbon dioxide. The output end of the servo motor 209 drives the bidirectional threaded rod 210 to rotate, so that the two sealing boxes 202 move closer to each other and seal the upper part of the separation tank 201, thereby allowing the sealing box 202 to collect the supercritical carbon dioxide solution.

[0048] After cleaning the polypropylene fiber assembly 214, the bidirectional threaded rod 210 is rotated in the opposite direction, causing the two sealing boxes 202 to move away from each other. This causes the clamping plate 213 to come into contact with the pushing plate 206, allowing the clamping plate 213 to drive the sealing plate 203 to slide inside the sealing box 202, thus ceasing to seal the sealing box 202. This allows the solution collected inside the sealing box 202 to drain into the collection box 205, completing the recovery of the solution. After processing, the solution can be reused, thus avoiding waste.

[0049] Both sides of the bottom wall of the separator 201 are fixedly connected with electric push rods 211 that fit against the corresponding polypropylene fiber components 214. Based on the setting of the electric push rods 211, when the polypropylene fiber components 214 are inside the separator 201, they are not threadedly connected to the threaded rods 207. The electric push rods 211 push the polypropylene fiber components 214 to move, so that the polypropylene fiber components 214 are sleeved on the surface of the threaded rods 207. Thus, through the clamping force, the threaded rods 207 drive the corresponding polypropylene fiber components 214 to move, so that several polypropylene fiber components 214 can be used in batches.

[0050] The water-oil separation unit 2 also includes an inlet pipe 215 and a drain pipe 212, which are respectively fixedly connected to one side and the lower surface of the separation tank 201. The inlet pipe 215 is connected to an external wastewater conveying device. One end of the drain pipe 212 is fixedly connected to a three-way water pipe 217. Both ends of the three-way water pipe 217 are fixedly connected to a solenoid valve 218. One end of one of the solenoid valves 218 is fixedly connected to a conveying pipe 216 that is connected to the inlet pipe 215.

[0051] After separating the oil and water in the wastewater, the treated wastewater is discharged into the three-way water pipe 217 through the drain pipe 212. By controlling the solenoid valve 218, the wastewater enters the water quality tester 301 or re-enters the separation tank 201. Thus, when treating wastewater with high oil content, the wastewater is treated multiple times, making the oil and water separation more thorough.

[0052] Example 2: Based on Example 1, the chemical treatment unit 3 further includes a water quality tester 301 fixedly connected to one end of another solenoid valve 218. A connecting pipe 302 is fixedly connected to one side of the water quality tester 301. An isolation tank 303 connected to the connecting pipe 302 is fixedly connected to one end of the connecting pipe 302. A treatment subunit 6 is installed inside the isolation tank 303. An inlet pipe is fixedly connected to one side of the upper surface of the isolation tank 303. With the inlet pipe, wastewater can be treated directly inside the isolation tank 303, making it more convenient to treat wastewater with low oil content.

[0053] Based on the settings of the water quality tester 301, the wastewater entering the connecting pipe 302 is tested, and after identifying the chemical substances in the wastewater, the wastewater is allowed to enter the isolation tank 303.

[0054] The processing subunit 6 includes a drive rod 601 rotatably connected to the inside of the isolation tank 303 via a bearing seat. Isolation plates 602 are fixedly connected to the surface of the drive rod 601 in a ring array. A sealed space is isolated on the opposite sides of every two isolation plates 602. A DC motor 603 is fixedly connected to the opposite sides of the two isolation plates 602. A rotating rod 604 is fixedly connected to the output end of the DC motor 603. A stirring blade rotatably connected to the inside of the sealed space is fixedly connected to the surface of the rotating rod 604 in a ring array.

[0055] After the wastewater is tested, it enters the corresponding sealed space. The DC motor 603 drives the rotating rod 604 to rotate, thereby causing the stirring blades to rotate in the sealed space and stir the wastewater inside.

[0056] The chemical treatment unit 3 also includes a support frame 304 fixedly connected to the upper surface of the isolation tank 303. The support frame 304 has a chemical raw material storage tank 305 connected in a path array inside, which is connected to the sealed space. The chemical raw material storage tank 305 stores chemical raw materials for treating wastewater. The lower surface of the isolation tank 303 is provided with a discharge trough 306 corresponding to the sealed space. One end of the drive rod 601 is fixedly connected to a drive motor 307 fixedly connected to the isolation tank 303.

[0057] While the wastewater is being stirred, based on the wastewater test results, the corresponding chemical raw materials stored in the chemical raw material storage tank 305 are transported into the wastewater. Through the stirring setting, the wastewater and chemical raw materials react fully, making the wastewater more thoroughly treated in the chemical process. After the wastewater is treated, it is discharged into the biological treatment unit 4. The drive motor 307 is started, and its output end drives the drive rod 601 to rotate. This causes the drive rod 601 to rotate the isolation plate 602, which moves the sealed space accordingly. The sludge that has settled after the wastewater treatment moves along with it, and the sludge moves to the discharge trough 306 for discharge. The stirring blades further push the sludge to improve the efficiency of sludge discharge.

[0058] In Example 3, based on Examples 1 and 2, the biological treatment unit 4 further includes an infusion pipe 401 fixedly connected to the isolation tank 303 and communicating with the corresponding sealed space. One end of the infusion pipe 401 is fixedly connected to an anaerobic tank 402 that is connected to the infusion pipe 401. The anaerobic tank 402 is equipped with an anaerobic bioreactor, microorganisms, and a color sensor for biodegrading the microorganisms in the wastewater entering the anaerobic tank 402 and further treating the wastewater.

[0059] The chemically treated wastewater is discharged into the anaerobic tank 402 through the infusion pipe 401. Based on the cooperation of the anaerobic bioreactor and microorganisms, the wastewater is anaerobically treated to remove microorganisms from the wastewater. The treated wastewater is also detected by a color sensor.

[0060] The decolorization treatment unit 5 includes electric valves 501 fixedly connected in a path array to the lower surface of the anaerobic chamber 402. One end of several electric valves 501 is fixedly connected to the decolorization chamber 502. The decolorization chamber 502 is equipped with existing electrochemical oxidation equipment for decolorizing the wastewater entering the decolorization chamber 502. Temperature sensors 503 are fixedly connected to the inside of the decolorization chamber 502 and the surface of the anaerobic chamber 402. The temperature sensors 503 facilitate the staff to control the temperature inside the anaerobic chamber 402 and the decolorization chamber 502.

[0061] Based on the color sensor detection results, when the wastewater color exceeds the threshold, the electric valve 501 is activated, allowing the wastewater to enter the decolorization tank 502. The wastewater is then decolorized using an electrochemical oxidation device. When the wastewater color does not exceed the threshold, the wastewater is discharged into the storage tank 8 via the drain pipe 7, thus completing the wastewater treatment.

[0062] A drain pipe 7 is fixedly connected to one side of both the anaerobic chamber 402 and the decolorization chamber 502. A storage tank 8 is fixedly connected to one end of both drain pipes 7. An outlet pipe is fixedly connected to one side of the storage tank 8. The anaerobic chamber 402, the decolorization chamber 502 and the isolation tank 303 are all fixedly connected to the upper surface of the support frame 1.

[0063] Based on the wastewater flowing through the separator 201, the isolation tank 303, the anaerobic tank 402 / decolorization tank 502 and the storage tank 8, the wastewater is continuously transported and treated, thereby achieving continuous wastewater treatment. Furthermore, through the cooperation of the water-oil separation unit 2, the chemical treatment unit 3, the biological treatment unit 4 and the decolorization treatment unit 5, the wastewater is treated in stages, achieving multi-stage treatment of the wastewater, thus making the wastewater treatment more thorough.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A continuous processing wastewater multistage treatment device, comprising a support frame (1), the surface of the support frame (1) is mounted with a multistage treatment mechanism, the multistage treatment mechanism comprises a water-oil separation unit (2), a chemical treatment unit (3), a biological treatment unit (4) and a decolorization treatment unit (5); the water-oil separation unit (2) comprises a separation tank (201) fixedly connected to one side of the upper surface of the support frame (1), both sides of the surface of the separation tank (201) are slidably connected with sealing boxes (202), the inside of the sealing box (202) is slidably connected with a sealing plate (203), both edges of one side of the sealing plate (203) are fixedly connected with return springs (204) fixedly connected with the sealing box (202), and the lower surface of the sealing plate (203) is fixedly connected with an abutting plate (213); the surface of the separation tank (201) is fixedly connected with a collection box (205) corresponding to the sealing box (202), both sides of the inside of the collection box (205) are fixedly connected with push plates (206) corresponding to the abutting plate (213) one by one, and the upper surface of the separation tank (201) is fixedly connected with an existing spraying system, the liquid sprayed by the spraying system is supercritical carbon dioxide; the water-oil separation unit (2) further comprises a plurality of polypropylene fiber assemblies (214) slidably connected inside the separation tank (201), the surface of one of the polypropylene fiber assemblies (214) is threadedly connected with a threaded rod (207) rotatably connected inside the separation tank (201), and one end of the threaded rod (207) is fixedly connected with a driving motor (208) fixedly connected with the separation tank (201); the water-oil separation unit (2) further comprises a servo motor (209) fixedly connected inside the separation tank (201), the output end of the servo motor (209) is fixedly connected with a bidirectional threaded rod (210) threadedly connected with the two sealing boxes (202), and the opposite sides of the two sealing boxes (202) are jointly slidably connected with guide rods fixedly connected with the separation tank (201), and both sides of the inner bottom wall of the separation tank (201) are fixedly connected with electric push rods (211) fitted with the corresponding polypropylene fiber assemblies (214); when the polypropylene fiber assemblies (214) are located inside the separation tank (201) and are not threadedly connected with the threaded rod (207), the polypropylene fiber assemblies (214) are moved by the electric push rods (211), so that the polypropylene fiber assemblies (214) are sleeved on the surface of the threaded rod (207), so that the threaded rod (207) drives the corresponding polypropylene fiber assemblies (214) to move by the abutting force, so that the plurality of polypropylene fiber assemblies (214) are used in batches.The biological treatment unit (4) comprises a liquid inlet pipe (401) fixedly connected to the isolation tank (303) and communicating with the corresponding sealed space, one end of the liquid inlet pipe (401) is fixedly connected with an anaerobic tank (402) communicating with the liquid inlet pipe (401), the inside of the anaerobic tank (402) is provided with an anaerobic biological reactor, microorganisms and a chroma sensor, for biodegradation of wastewater entering the inside of the anaerobic tank (402) and further treatment of the wastewater; the decolorization treatment unit (5) comprises an electric valve (501) fixedly connected to the lower surface of the anaerobic tank (402) in an array, one end of a plurality of the electric valves (501) is fixedly connected with a decolorization tank (502), the inside of the decolorization tank (502) is provided with an existing electrochemical oxidation device, for decolorization of wastewater entering the inside of the decolorization tank (502), the inside of the decolorization tank (502) and the surface of the anaerobic tank (402) are fixedly connected with a temperature sensor (503).

2. A continuous process wastewater multistage treatment apparatus according to claim 1, characterized in that: The water-oil separation unit (2) further includes a water inlet pipe (215) fixedly connected to one side of the separation tank (201) and a drain pipe (212) fixedly connected to the lower surface of the separation tank (201), the water inlet pipe (215) is in communication with an external wastewater conveying device, one end of the drain pipe (212) is fixedly connected with a three-way water pipe (217), two ends of the three-way water pipe (217) are fixedly connected with electromagnetic valves (218), and one end of one of the electromagnetic valves (218) is fixedly connected with a conveying pipe (216) in communication with the water inlet pipe (215).

3. A continuous process wastewater multistage treatment apparatus according to claim 2, characterized in that: The chemical treatment unit (3) includes a water quality tester (301) fixedly connected to one end of the other electromagnetic valve (218), one side of the water quality tester (301) is fixedly connected with a connecting pipe (302), one end of the connecting pipe (302) is fixedly connected with an isolation tank (303) in communication with the connecting pipe (302), and the inside of the isolation tank (303) is installed with a treatment subunit (6), and one side of the upper surface of the isolation tank (303) is fixedly connected with a liquid inlet pipe.

4. A continuous process wastewater multistage treatment apparatus according to claim 3, wherein: The treatment subunit (6) includes a drive rod (601) rotatably connected to the inside of the isolation tank (303) through a bearing seat, the surface of the drive rod (601) is fixedly connected with isolation plates (602) in an annular array, and a sealed space is isolated on the opposite sides of every two isolation plates (602), the opposite sides of the two isolation plates (602) are fixedly connected with a DC motor (603) together, the output end of the DC motor (603) is fixedly connected with a rotating rod (604), and the surface of the rotating rod (604) is fixedly connected with stirring paddles rotatably connected to the inside of the sealed space.

5. A continuous process wastewater multistage treatment apparatus according to claim 4, wherein: The chemical treatment unit (3) further includes a support frame (304) fixedly connected to the upper surface of the isolation tank (303), the inside of the support frame (304) is fixedly connected with chemical raw material storage tanks (305) in an array and in communication with the sealed space, the inside of the chemical raw material storage tanks (305) stores chemical raw materials for treating wastewater, the lower surface of the isolation tank (303) is provided with a discharge groove (306) corresponding to the sealed space, and one end of the drive rod (601) is fixedly connected with a drive motor two (307) fixedly connected with the isolation tank (303).

6. The multi-stage wastewater treatment device of claim 1, wherein: One end of each of the two drain pipes (7) is fixedly connected with a storage tank (8), one side of the storage tank (8) is fixedly connected with a liquid outlet pipe, and the anaerobic tank (402), the decoloring tank (502), and the isolation tank (303) are fixedly connected to the upper surface of the support frame (1).

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