Industrial sewage treatment device based on plasma

Abstract

The invention relates to the technical field of sewage treatment devices, in particular to a plasma-based industrial sewage treatment device which comprises an outer frame and further comprises a treatment frame mounted in the outer frame, and the interior of the treatment frame is connected with a slag scraping assembly, a plasma assembly and a spraying assembly. The water inlet end of the slag scraping assembly is communicated with an industrial sewage source, and the water outlet end is communicated with a pressurizer; and a spraying pipe and a plurality of net barrels are rotatably connected to the interior of the centrifugal frame. Sewage is sprayed in the centrifugal frame through high-speed rotation of the spray pipe, and primary solid-liquid separation of the sewage is realized by combining graded filtration of the inner net barrel and the outer net barrel; meanwhile, high-temperature airflow in the same tangential direction and plasma particle flow in the reverse tangential direction are introduced, a multiphase flow reaction environment is formed, the high-temperature airflow accelerates residue dehydration, a filter screen is prevented from being blocked, meanwhile, the environment temperature is increased to enhance plasma activity, the plasma particle flow makes full contact with rotating sewage, and organic matter in the sewage is directly degraded.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a plasma-based industrial wastewater treatment device. Background Technology

[0002] In the field of wastewater treatment, with industrial development, wastewater composition is becoming increasingly complex, posing numerous challenges to traditional treatment methods. Traditional biological, physicochemical, and oxidation methods are ineffective in treating high-concentration, recalcitrant high-molecular-weight organic compounds. Existing technologies utilize high-voltage discharge and strong plasma oxidation to treat recalcitrant pollutants, exciting, ionizing, or breaking bonds in organic molecules, accelerating degradation without secondary pollution. However, current plasma wastewater treatment devices have limited capacity, low reaction efficiency, and high energy consumption, making large-scale application in industrial water treatment difficult.

[0003] In existing technologies, dielectric barrier discharge low-temperature plasma discharge devices are used to discharge and treat sewage at a certain depth. However, in this method, the discharge plasma area cannot completely cover the sewage, resulting in a single treatment method that cannot combine high-temperature airflow and plasma particle flow for sewage treatment, leading to poor treatment efficiency. Another method involves periodically varying the spacing between two discharge electrodes to perform large-area sliding arc discharge underwater. However, the characteristics of the discharge plasma are affected by the conductivity of the sewage, limiting its applicability to different types of sewage. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability of the discharge plasma region to completely cover the sewage, the single sewage treatment method, the inability to perform combined treatment of sewage with high-temperature airflow and plasma particle flow, and the poor sewage treatment effect. Therefore, this invention proposes a plasma-based industrial sewage treatment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A plasma-based industrial wastewater treatment device includes an outer frame and a component installed inside the outer frame: The treatment frame contains a sludge scraping assembly, a plasma assembly, and a spraying assembly. The inlet of the sludge scraping assembly is connected to an industrial wastewater source, and the outlet is connected to a pressure booster. The centrifuge frame has a nozzle and multiple mesh barrels rotatably connected inside. The water outlet of the pressurizer is sealed through the centrifuge frame and rotatably connected to the water inlet of the nozzle. A high-temperature airflow component is connected to one side of the centrifuge frame, a particle flow component is connected to the other side, and an air outlet pipe is connected to the end away from the pressurizer. The plasma assembly includes a sealed frame and multiple electrode plates installed inside the sealed frame. The sealed frame and the multiple electrode plates form a multi-bend flow channel, and the inlet end of the multi-bend flow channel is connected to the outlet end of the centrifuge frame. The water inlet of the spray assembly is connected to the water outlet of the multi-bend flow channel; The water collection frame is connected to the water outlet of the spray assembly.

[0006] Preferably, a reinforcing frame is fixedly connected between the treatment frame and the outer frame. The sludge scraping assembly includes a sludge scraping bucket fixedly connected inside the treatment frame. The top of the sludge scraping bucket is connected to a sludge discharge frame, and a floating debris cleaning mechanism is installed inside. The floating debris cleaning mechanism is used to clean the floating debris in the sewage into the interior of the sludge discharge frame.

[0007] Preferably, the pressurizer is installed inside the outer frame. A hollow rod is rotatably connected between the water outlet of the pressurizer and the water inlet of the nozzle. The middle part of the hollow rod is sealed and rotatably fitted with the centrifugal frame. A drive motor is installed inside the outer frame. The output end of the drive motor is sealed and extends through the hollow rod, and is coaxially fixedly connected to an auger blade. The end of the auger blade away from the drive motor is coaxially fixedly connected to the nozzle. Both ends of the nozzle are fixedly connected to the net barrels through brackets. The net barrels include two concentric inner net barrels and one outer net barrel, which are fixedly connected to the nozzle through brackets. Spray holes are opened on the side of the nozzle, and the water outlet of the spray holes faces the adjacent inner net barrels.

[0008] Preferably, the high-temperature airflow assembly includes a cyclone separator and a heater installed inside the outer frame. The air inlet end of the cyclone separator is connected to the end of the air outlet pipe away from the centrifuge frame, and the air outlet end is connected to the air inlet end of the heater. The air outlet end of the heater is connected to the centrifuge frame and the high-temperature airflow is introduced along the tangent of the centrifuge frame and the rotation direction of the mesh barrel.

[0009] Preferably, the particle flow assembly includes an ion generator installed inside the outer frame. The output end of the ion generator is connected to an ion tube. The end of the ion tube away from the ion generator is connected to the centrifuge frame and the plasma particle flow is introduced along the tangential direction of the centrifuge frame and the reverse rotation direction of the mesh barrel.

[0010] Preferably, the plasma assembly includes a base fixedly connected to the bottom of the processing frame, a water outlet frame fixedly connected to the top of the base, multiple fixed frames connected to the top of the water outlet frame, and a spray assembly connected to the bottom of the water outlet frame via a water pipe. The multiple fixed frames are stacked vertically, and a sealing ring is fixedly connected between two adjacent fixed frames. A water inlet frame is connected to the top of the uppermost fixed frame, and the water inlet end of the water inlet frame is connected to the water outlet end of the centrifuge frame via a water pipe. An electrode plate is installed inside the fixed frame, and an injection-molded electrode that is sealed and penetrates the fixed frame is electrically connected to the electrode plate. Adjacent electrode plates are staggered, and the multi-bend flow channel is formed by multiple fixed frames and multiple electrode plates.

[0011] Preferably, multiple fixing ears are fixedly connected to the outside of the fixed frame, and the multiple fixing ears on the same side are connected to the same air inlet pipe. The fixed frame and the fixing ears are provided with connected air holes. The air inlet end of the air inlet pipe is connected to an external air source, and the air outlet end is connected to multiple air holes. The end of the air hole away from the air inlet pipe is connected to a multi-bend flow channel.

[0012] Preferably, the spray assembly includes a spray chamber disposed inside the treatment frame. The spray chamber is fixedly connected to a mounting frame and has multiple aeration pipes installed at the bottom. Multiple MBR membranes are installed on the mounting frame. The water outlet end of the water outlet frame is directed toward the multiple MBR membranes through a water pipe extending into the spray chamber. The water outlet end of the spray chamber is connected to the water inlet end of the water collection frame through a water pipe.

[0013] Preferably, a cleaning spray pipe is fixedly connected inside the treatment frame, with the inlet end of the cleaning spray pipe connected to an external water source and the outlet end facing the inner wall of the treatment frame.

[0014] Preferably, it also includes a fermenter installed inside the outer frame, which can be selectively connected in series between the water outlet of the sludge scraper and the water inlet of the pressure booster.

[0015] Compared with the prior art, the advantages of the present invention are as follows: 1. This invention utilizes a centrifuge frame, a high-temperature airflow assembly, and a particle flow assembly. Inside the centrifuge frame, wastewater is sprayed at high speed through a rotating nozzle. Combined with the tiered filtration of the inner and outer mesh containers, preliminary solid-liquid separation of the wastewater is achieved. Simultaneously, a tangential high-temperature airflow and a counter-tangential plasma particle flow are introduced to create a multiphase flow reaction environment. The high-temperature airflow accelerates residue dehydration and prevents filter clogging, while simultaneously increasing the ambient temperature to enhance plasma activity. The plasma particle flow makes full contact with the rotating wastewater, directly degrading organic matter in the wastewater. Furthermore, the plasma flow into the filtrate can continue the degradation process, achieving simultaneous filtration and oxidation, thus improving the wastewater treatment effect. The gas discharged from the centrifuge frame is purified by a cyclone separator and heated by a heater before being reintroduced into the centrifuge frame, achieving airflow recycling. The purification effect of the cyclone separator ensures clean air entering the heater while reducing pollutant emissions, lowering energy consumption, and mitigating the risk of secondary pollution.

[0016] 2. This invention, by setting up a plasma assembly consisting of a multi-layered fixed frame and staggered electrode plates forming an S-shaped multi-bend flow channel, extends the contact time between wastewater and the electrode plates, improving the efficiency of the electrochemical reaction. Air is introduced into the multi-bend flow channel through the air inlet pipe and air holes, forming a plasma environment when the electrode plates are energized. High-energy electrons and ultraviolet light are used to further degrade difficult-to-treat pollutants, achieving electrochemical and plasma synergistic oxidation treatment, further improving the wastewater treatment effect. The multi-layered fixed frame is sealed and stacked with sealing rings, allowing for flexible adjustment of the length of the multi-bend flow channel and the number of reaction zones to meet the treatment needs of wastewater with different concentrations. Each independent plasma reaction zone allows wastewater to flow through the active area multiple times, increasing the depth of wastewater treatment.

[0017] 3. This invention forms a multi-stage synergistic process of physical separation, centrifugal multiphase reaction, and plasma-enhanced oxidation by setting up a slag scraping component, a centrifugal frame, and a plasma component. Combined with a modular structure, energy cycle, and multi-functional power design, it achieves efficient, low-consumption, and highly adaptable industrial wastewater treatment. Attached Figure Description

[0018] Figure 1 This is an overall isometric view of a plasma-based industrial wastewater treatment device proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the cyclone separator and heater structure of a plasma-based industrial wastewater treatment device proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the treatment frame of a plasma-based industrial wastewater treatment device proposed in this invention.

[0021] Figure 4 This is a schematic diagram of the high-temperature airflow component and particle flow component of a plasma-based industrial wastewater treatment device proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the mesh tank section of a plasma-based industrial wastewater treatment device proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the auger blade and nozzle structure of a plasma-based industrial wastewater treatment device proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the fixed lug and air inlet pipe structure of a plasma-based industrial wastewater treatment device proposed in this invention.

[0025] Figure 8 This is a schematic diagram of the electrode plate and pore structure of a plasma-based industrial wastewater treatment device proposed in this invention.

[0026] In the diagram: 1. Outer frame; 2. Water collection frame; 3. Fermentation tank; 4. Processing frame; 5. Reinforcing frame; 6. Slag scraper; 7. Slag discharge frame; 8. Cleaning spray pipe; 9. Mounting frame; 10. MBR membrane; 11. Aeration pipe; 12. Base; 13. Water discharge frame; 14. Water inlet frame; 15. Air inlet pipe; 16. Fixing ear; 17. Fixing frame; 18. Injection-molded electrode; 19. Sealing ring; 20. Electrode plate; 21. Air hole; 22. Heater; 23. Cyclone separator; 24. Air outlet pipe; 25. Ion generator; 26. Pressure booster; 27. Ion tube; 28. Drive motor; 29. ​​Centrifuge frame; 30. Outer mesh tank; 31. Inner mesh tank; 32. Hollow rod; 33. Spray pipe; 34. Screwdriver blade. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figures 1-6 A plasma-based industrial wastewater treatment device includes an outer frame 1, and further includes components installed inside the outer frame 1: The processing frame 4 is internally connected to a sludge scraping assembly, a plasma assembly, and a spraying assembly. The inlet end of the sludge scraping assembly is connected to an industrial wastewater source, and the outlet end is connected to a pressure booster 26.

[0029] A reinforcing frame 5 is fixedly connected between the treatment frame 4 and the outer frame 1. The sludge scraping assembly includes a sludge scraping bucket 6 fixedly connected inside the treatment frame 4. The top of the sludge scraping bucket 6 is connected to a sludge discharge frame 7, and a floating debris cleaning mechanism is installed inside. The floating debris cleaning mechanism is used to clean the floating debris in the sewage into the interior of the sludge discharge frame 7.

[0030] The floating debris removal mechanism uses existing technology. By driving the retrieval device to rotate, it pushes the floating debris at the liquid surface inside the slag scraper 6, causing the floating debris to fall into the interior of the slag discharge frame 7 through the connection between the slag scraper 6 and the slag discharge frame 7.

[0031] Centrifuge frame 29, inside which nozzle 33 and multiple mesh barrels are rotatably connected. The water outlet end of pressurizer 26 is sealed through centrifuge frame 29 and rotatably connected to the water inlet end of nozzle 33. One side of centrifuge frame 29 is connected to a high-temperature airflow component, the other side is connected to a particle flow component, and the end away from pressurizer 26 is connected to an air outlet pipe 24.

[0032] The pressurizer 26 is installed inside the outer frame 1. A hollow rod 32 is rotatably connected between the water outlet of the pressurizer 26 and the water inlet of the nozzle 33. The middle part of the hollow rod 32 is sealed and rotated with the centrifugal frame 29. A drive motor 28 is installed inside the outer frame 1. The output end of the drive motor 28 is sealed and extends through the hollow rod 32 and is coaxially fixedly connected to an auger blade 34. The end of the auger blade 34 away from the drive motor 28 is coaxially fixedly connected to the nozzle 33. Both ends of the nozzle 33 are fixedly connected to the net barrel through brackets. The net barrel includes two concentric inner net barrels 31 and an outer net barrel 30 fixedly connected to the nozzle 33 through brackets. Spray holes are opened on the side of the nozzle 33, and the water outlet of the spray holes faces the adjacent inner net barrel 31.

[0033] The high-temperature airflow assembly includes a cyclone separator 23 and a heater 22 installed inside the outer frame 1. The inlet end of the cyclone separator 23 is connected to the end of the outlet pipe 24 away from the centrifugal frame 29, and the outlet end is connected to the inlet end of the heater 22. The outlet end of the heater 22 is connected to the centrifugal frame 29, and high-temperature airflow is introduced along the tangent of the centrifugal frame 29 and the rotation direction of the mesh barrel.

[0034] The cyclone separator 23 uses existing technology to generate centrifugal force through high-speed rotation, which filters and separates the incoming air, removes impurities, purifies the air entering the heater 22, and can also circulate and filter the gas discharged from the centrifugal frame 29.

[0035] The particle flow assembly includes an ion generator 25 installed inside the outer frame 1. The output end of the ion generator 25 is connected to an ion tube 27. The end of the ion tube 27 away from the ion generator 25 is connected to a centrifuge frame 29 and a plasma particle flow is introduced along the tangential direction of the centrifuge frame 29 and the opposite rotation direction of the mesh barrel.

[0036] The ion generator 25 uses existing technology to generate plasma through high-voltage discharge. The plasma is sprayed into the centrifuge frame 29 in the opposite direction of the mesh barrel rotation to deeply treat the residual organic matter in the sewage and allow the plasma to flow into the filtrate, where it continues to act to improve the water quality.

[0037] Reference Figure 7 and Figure 8 The plasma assembly includes a sealed frame and multiple electrode plates 20 installed inside the sealed frame. The sealed frame and the multiple electrode plates 20 form a multi-bend flow channel, and the inlet end of the multi-bend flow channel is connected to the outlet end of the centrifuge frame 29.

[0038] The plasma assembly includes a base 12 fixedly connected to the bottom of the processing frame 4. A water outlet frame 13 is fixedly connected to the top of the base 12. Multiple fixed frames 17 are connected to the top of the water outlet frame 13, and the bottom is connected to the spray assembly through a water pipe. Multiple fixed frames 17 are stacked vertically. A sealing ring 19 is fixedly connected between two adjacent fixed frames 17. A water inlet frame 14 is connected to the top of the uppermost fixed frame 17. The water inlet end of the water inlet frame 14 is connected to the water outlet end of the centrifuge frame 29 through a water pipe. An electrode plate 20 is installed inside the fixed frame 17. An injection-molded electrode 18 that seals and penetrates the fixed frame 17 is electrically connected to the electrode plate 20. Two adjacent electrode plates 20 are staggered. The multi-bend flow channel is formed by multiple fixed frames 17 and multiple electrode plates 20.

[0039] The electrode plate 20 is energized through the injection-molded electrode 18 to electrochemically treat the sewage inside the multi-bend flow channel, thereby improving the efficiency of pollutant removal.

[0040] Multiple fixing ears 16 are fixedly connected to the outside of the fixed frame 17. The multiple fixing ears 16 on the same side are connected to the same air inlet pipe 15. The fixed frame 17 and the fixing ears 16 are provided with connected air holes 21. The air inlet end of the air inlet pipe 15 is connected to an external air source, and the air outlet end is connected to multiple air holes 21. The end of the air hole 21 away from the air inlet pipe 15 is connected to a multi-bend flow channel.

[0041] Air is introduced into the multi-bend flow channel through the air inlet pipe 15 and the air hole 21. When the energized electrode plate 20 is working, a plasma environment is generated inside the multi-bend flow channel, which further improves the treatment effect of sewage.

[0042] The water inlet of the spray assembly is connected to the water outlet of the multi-bend flow channel.

[0043] The spray assembly includes a spray chamber located inside the treatment frame 4. The spray chamber is fixedly connected to a mounting frame 9 and has multiple aeration pipes 11 installed at the bottom. Multiple MBR membranes 10 are installed on the mounting frame 9. The water outlet end of the water outlet frame 13 is directed toward the multiple MBR membranes 10 through a water pipe extending into the spray chamber. The water outlet end of the spray chamber is connected to the water inlet end of the water collection frame 2 through a water pipe.

[0044] MBR is an abbreviation for Membrane Bioreactor, which uses biological treatment to deeply purify wastewater.

[0045] Water collection frame 2 is connected to the water outlet of the spray assembly and is used to temporarily store the treated water.

[0046] A cleaning spray pipe 8 is fixedly connected inside the treatment frame 4. The inlet end of the cleaning spray pipe 8 is connected to an external water source, and the outlet end faces the inner wall of the treatment frame 4.

[0047] It also includes a fermenter 3 installed inside the outer frame 1, which can be selectively connected in series between the water outlet of the scraper bucket 6 and the water inlet of the pressure booster 26.

[0048] When there are residual organic matter suitable for fermentation in the wastewater, the wastewater can be further purified by connecting fermentation tanks 3 in series.

[0049] When using this invention, the entire device is installed in the outer frame 1 to ensure overall stability. The water collection frame 2 can temporarily store the treated water. The fermentation tank 3 can be connected to the treatment system as needed to ferment water containing special substances.

[0050] Under normal circumstances, industrial wastewater is introduced into the slag scraper 6 inside the treatment frame 4 through an external water pipe. The floating debris cleaning mechanism inside the slag scraper 6 works to effectively and quickly remove pollutants floating on the liquid surface in a physical and mechanical manner and collect them into the slag discharge frame 7. This removes a large amount of these pollutants with a specific gravity less than water from the source, greatly reducing the load on subsequent treatment units and preventing them from clogging pipes, entangled in equipment, or interfering with the subsequent solid-liquid separation process.

[0051] Wastewater passing through the scraper bucket 6 is introduced into the interior of the pressure booster 26 through the water pipe. The pressure booster 26 works to pressurize the wastewater and introduce it into the interior of the nozzle 33 through the hollow rod 32.

[0052] At this time, the drive motor 28 is started, and its output end drives the auger blade 34 and the nozzle 33 to rotate. The auger blade 34 pushes the sewage inside the hollow rod 32, so that the sewage is accelerated to enter the interior of the nozzle 33. During the rotation of the nozzle 33, the nozzle 33 drives the inner screen barrel 31 and the outer screen barrel 30 to rotate through the bracket. The sewage is sprayed out through the spray hole and sprayed onto the inner screen barrel 31 and the outer screen barrel 30. The sewage is filtered by the inner screen barrel 31 and the outer screen barrel 30. The two layers of inner screen barrel 31 and one layer of outer screen barrel 30 form a graded filtration to effectively avoid clogging, disperse solid load, and reduce filter wear and cleaning frequency.

[0053] Start the cyclone separator 23 to filter the air entering the cyclone separator 23. The filtered air is then passed into the heater 22. The heater 22 is activated to heat the air. The filtered and heated air is then sprayed into the interior of the centrifuge frame 29 through the right side of the centrifuge frame 29 in the direction of rotation of the mesh barrel.

[0054] High-temperature airflow blows directly onto the surface of the mesh drum, evaporating the residual moisture in the filtered residue and significantly reducing the moisture content of the residue, thus reducing the amount of residue. At the same time, the high-speed airflow helps to penetrate the residue layer, carrying away capillary water and some bound water, further improving the dehydration efficiency, preventing residue from adhering to the mesh drum, and facilitating the removal of residue from the interior of the centrifuge frame 29 by the airflow, ensuring the continuous filtration effect of the mesh drum.

[0055] The direction of the high-temperature airflow is consistent with the rotation direction of the mesh barrel, and the relative speed is relatively small. The airflow stays on the surface of the mesh barrel for a relatively long time, resulting in more complete heat exchange and higher energy utilization efficiency. The ambient temperature inside the centrifuge frame 29 increases, making the movement between molecules more intense and improving the plasma processing efficiency.

[0056] When the ion generator 25 is activated, the plasma generated by the ion generator 25 is sprayed into the interior of the centrifuge frame 29 through the left side of the centrifuge frame 29 against the rotation direction of the mesh barrel. The plasma deeply treats the sewage, converting residual organic matter into CO2 and H2O. The -OH and O3 generated by the plasma are discharged with the sewage filtrate and continue to play a role in the sewage filtrate, making the sewage filtrate cleaner. It is suitable for industrial sewage with high organic matter, high oil content and high toxicity, and effectively improves water quality.

[0057] The gas inside the centrifuge frame 29 is discharged through the exhaust pipe 24. The discharged gas returns to the cyclone separator 23 through the exhaust pipe 24 for further filtration and separation, making it convenient for recycling.

[0058] The treated wastewater is introduced into the interior of the inlet frame 14 through an external water pipe. The electrode plate 20 is energized through the injection molding electrode 18, and air is supplied to the air inlet pipe 15 inside the fixing ear 16. The air enters from the air hole 21 inside the fixing ear 16 and the fixing frame 17. The first layer of electrode plate 20 is close to the right side, the second layer of electrode plate 20 is close to the left side, and so on, forming an S-shaped flow channel, which constitutes a multi-bend flow channel.

[0059] The multiple bends in the flow channel force the water to zigzag through each layer of electrode plates 20, allowing the wastewater to be in contact with the electrode plates 20 for a longer time, providing more time for the electrochemical reaction and thus improving the removal efficiency of pollutants.

[0060] As the air inlet pipe 15 supplies air into the interior of the multi-bend flow channel through the air hole 21, and the electrode plate 20 is energized, a plasma environment can be generated inside the multi-bend flow channel. High-energy electrons and ultraviolet radiation directly act on pollutant molecules, efficiently degrading difficult-to-treat organic pollutants, sterilizing and disinfecting, and decomposing some inorganic substances through strong oxidation, thereby improving the sewage treatment effect.

[0061] The modular structure of the multi-layer fixed frame 17 allows for easy adjustment of the length of the multi-bend flow channel, and an independent plasma reaction zone can be formed inside each layer of the fixed frame 17. Wastewater flows through these plasma active zones multiple times, increasing the contact opportunities and improving the treatment effect.

[0062] The treated wastewater flows out from the effluent frame 13 and then through the water pipe into the top of the mounting frame 9, where it is sprayed onto the MBR membrane 10. The bottom of the spray chamber is equipped with an aeration pipe 11 for aeration treatment. The wastewater undergoes biological treatment through the MBR membrane 10 inside the spray chamber. Finally, the treated wastewater can be collected in the collection frame 2.

[0063] When the treatment frame 4 needs to be cleaned, the cleaning spray pipe 8 will operate to spray water to clean the inner wall of the treatment frame 4.

[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 plasma-based industrial wastewater treatment device, comprising an outer frame (1), characterized in that, It also includes those installed inside the outer frame (1): The processing frame (4) is internally connected to a sludge scraping assembly, a plasma assembly and a spraying assembly. The inlet end of the sludge scraping assembly is connected to an industrial wastewater source and the outlet end is connected to a pressure booster (26). Centrifuge frame (29), inside which a nozzle (33) and multiple mesh barrels are rotatably connected, the outlet end of the pressurizer (26) is sealed through the centrifuge frame (29) and rotatably connected to the inlet end of the nozzle (33), one side of the centrifuge frame (29) is connected to a high-temperature airflow component, the other side is connected to a particle flow component, and the end away from the pressurizer (26) is connected to an air outlet pipe (24). The plasma assembly includes a sealed frame and multiple electrode plates (20) installed inside the sealed frame. The sealed frame and the multiple electrode plates (20) form a multi-bend flow channel. The inlet end of the multi-bend flow channel is connected to the outlet end of the centrifuge frame (29). The water inlet of the spray assembly is connected to the water outlet of the multi-bend flow channel; Water collection frame (2) is connected to the water outlet of the spray assembly.

2. The plasma-based industrial wastewater treatment device according to claim 1, characterized in that, A reinforcing frame (5) is fixedly connected between the treatment frame (4) and the outer frame (1). The sludge scraping assembly includes a sludge scraping bucket (6) fixedly connected inside the treatment frame (4). The top of the sludge scraping bucket (6) is connected to a sludge discharge frame (7), and a floating debris cleaning mechanism is installed inside. The floating debris cleaning mechanism is used to clean the floating debris in the sewage into the interior of the sludge discharge frame (7).

3. The plasma-based industrial wastewater treatment device according to claim 2, characterized in that, The pressurizer (26) is installed inside the outer frame (1). A hollow rod (32) is rotatably connected between the water outlet of the pressurizer (26) and the water inlet of the nozzle (33). The middle part of the hollow rod (32) is sealed and rotated with the centrifugal frame (29). A drive motor (28) is installed inside the outer frame (1). The output end of the drive motor (28) is sealed and extends through the hollow rod (32) and is coaxially fixedly connected to the auger blade rod (34). The end of the auger blade rod (34) away from the drive motor (28) is coaxially fixedly connected to the nozzle (33). Both ends of the nozzle (33) are fixedly connected to the net bucket through the bracket. The net bucket includes two concentric inner net buckets (31) and an outer net bucket (30) fixedly connected to the nozzle (33) through the bracket. The side of the nozzle (33) is provided with a spray hole, and the water outlet of the spray hole faces the adjacent inner net bucket (31).

4. The plasma-based industrial wastewater treatment device according to claim 3, characterized in that, The high-temperature airflow assembly includes a cyclone separator (23) and a heater (22) installed inside the outer frame (1). The inlet end of the cyclone separator (23) is connected to the end of the outlet pipe (24) away from the centrifugal frame (29), and the outlet end is connected to the inlet end of the heater (22). The outlet end of the heater (22) is connected to the centrifugal frame (29) and the high-temperature airflow is introduced along the tangent of the centrifugal frame (29) and the rotation direction of the mesh barrel.

5. The plasma-based industrial wastewater treatment device according to claim 4, characterized in that, The particle flow assembly includes an ion generator (25) installed inside the outer frame (1). The output end of the ion generator (25) is connected to an ion tube (27). The end of the ion tube (27) away from the ion generator (25) is connected to the centrifuge frame (29) and the plasma particle flow is introduced along the tangential direction of the centrifuge frame (29) and the opposite rotation direction of the mesh barrel.

6. The plasma-based industrial wastewater treatment device according to claim 1, characterized in that, The plasma assembly includes a base (12) fixedly connected to the bottom of the processing frame (4), a water outlet frame (13) fixedly connected to the top of the base (12), a plurality of fixed frames (17) connected to the top of the water outlet frame (13), and a water spray assembly connected to the bottom of the water outlet frame (13) via a water pipe. The plurality of fixed frames (17) are stacked vertically, and a sealing ring (19) is fixedly connected between two adjacent fixed frames (17). The top of the uppermost fixed frame (17) is connected to a water inlet frame (14), and the water inlet end of the water inlet frame (14) is connected to the water outlet end of the centrifuge frame (29) via a water pipe. An electrode plate (20) is installed inside the fixed frame (17), and an injection-molded electrode (18) that is sealed and penetrates the fixed frame (17) is electrically connected to the electrode plate (20). Two adjacent electrode plates (20) are staggered, and the multi-bend flow channel is formed by multiple fixed frames (17) and multiple electrode plates (20).

7. The plasma-based industrial wastewater treatment device according to claim 6, characterized in that, Multiple fixed ears (16) are fixedly connected to the outside of the fixed frame (17). Multiple fixed ears (16) on the same side are connected to the same air inlet pipe (15). The fixed frame (17) and the fixed ears (16) are provided with connected air holes (21). The air inlet end of the air inlet pipe (15) is connected to an external air source, and the air outlet end is connected to multiple air holes (21). The end of the air hole (21) away from the air inlet pipe (15) is connected to a multi-bend flow channel.

8. The plasma-based industrial wastewater treatment device according to claim 7, characterized in that, The spray assembly includes a spray chamber located inside the treatment frame (4). The spray chamber is fixedly connected to a mounting frame (9) and has multiple aeration pipes (11) installed at the bottom. Multiple MBR membranes (10) are installed on the mounting frame (9). The water outlet of the water outlet frame (13) is directed toward the multiple MBR membranes (10) through a water pipe extending into the spray chamber. The water outlet of the spray chamber is connected to the water inlet of the water collection frame (2) through a water pipe.

9. The plasma-based industrial wastewater treatment device according to claim 8, characterized in that, The cleaning spray pipe (8) is fixedly connected inside the treatment frame (4). The inlet of the cleaning spray pipe (8) is connected to the external water source, and the outlet is facing the inner wall of the treatment frame (4).

10. The plasma-based industrial wastewater treatment device according to claim 3, characterized in that, It also includes a fermenter (3) installed inside the outer frame (1), which can be selectively connected in series between the outlet of the scraper bucket (6) and the inlet of the pressure device (26).

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