A graded treatment device and method for industrial wastewater

Abstract

This invention discloses a graded treatment device for industrial wastewater, belonging to the field of industrial wastewater treatment technology. The device includes a wastewater treatment unit body, a three-stage treatment chamber, electrolytic electrodes, a diversion assembly, and a gas separation and recovery mechanism. The three-stage treatment chamber is located at one end of the internal cavity of the wastewater treatment unit body; the electrolytic electrodes are located at the bottom of the internal cavity of the three-stage treatment chamber. By incorporating the diversion assembly and the gas separation and recovery mechanism, when wastewater flows into the three-stage treatment chamber through the diversion assembly, the wastewater inside the chamber is divided into two sides. Furthermore, the gas separation and recovery mechanism separates the hydrogen and oxygen bubbles generated during the electrolysis of the electrolytic electrodes. These bubbles then flow upwards into the gas separation and recovery mechanism, enabling low-cost recovery of hydrogen and oxygen from the bubbles at the top of the wastewater, avoiding energy loss and reducing costs.

Description

Technical Field

[0001] This invention belongs to the field of industrial wastewater treatment technology, and specifically relates to an industrial wastewater graded treatment device and method. Background Technology

[0002] Industrial wastewater mainly originates from wastewater generated during production processes, including cooling water, washing water, and process wastewater. This wastewater contains various harmful substances, such as entangled materials, heavy metals, organic solvents, acids and alkalis, and suspended solids. Direct discharge of untreated industrial wastewater will seriously pollute water bodies and disrupt the aquatic ecological balance. Due to the different compositions of industrial wastewater, it is usually treated in stages as needed. Primary treatment typically removes some larger suspended solids and entangled materials. Secondary treatment often uses chemicals to neutralize the pH value and remove large solid particles. Tertiary treatment often uses air flotation to encapsulate and float suspended solids in the water. External equipment such as air compressors aerate the wastewater, allowing suspended solids to combine with air bubbles. In recent years, with the development of energy recycling and the maturity of water electrolysis technology, wastewater electrolysis has also been adopted in tertiary treatment.

[0003] A search of Chinese Patent Application No. 202011278043.8 reveals a micro-electrolysis treatment and collection device for industrial wastewater, comprising a treatment tank with a treatment chamber inside. The treatment chamber contains an adjustment mechanism, which includes an inlet pipe fixedly installed on the upper wall of the treatment chamber and connected to the outside of the treatment tank. A placement shaft is fixedly installed on the lower end face of the inlet pipe, and a placement box is located within the placement shaft. The industrial wastewater to be treated is discharged into the inlet, and an appropriate amount of micro-electrolyte is added according to the discharge volume. This avoids waste due to excessive addition of micro-electrolyte or poor micro-electrolysis effect due to insufficient addition, thus affecting the wastewater treatment efficiency. The device also drives the micro-electrolysis material to fully generate an electrolytic reaction with the wastewater, enabling rapid coagulation of the wastewater.

[0004] While the aforementioned patent literature promotes the coagulation of pollutants in wastewater through water electrolysis, the bubbles generated during the electrolysis process (mainly composed of hydrogen with high energy density and oxygen with oxidizing properties) are not effectively collected. This not only wastes the electrical energy consumed in the electrolysis process but also wastes valuable clean energy and industrial raw materials, resulting in a double waste of energy and resources. In existing technologies, most manufacturers, due to cost and technical complexity considerations, typically do not recover the gases generated during wastewater treatment electrolysis. Even if a few manufacturers attempt to recover them, they often employ complex multi-stage separation processes. First, they need to use sedimentation and filtration to separate the gases from the suspended solids that float with the bubbles; then, they use pressure swing adsorption, membrane separation, or cryogenic distillation to separate the hydrogen and oxygen. These separation methods are not only lengthy processes and require huge equipment investments, but also have high operating energy consumption and maintenance costs, resulting in poor economic efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an industrial wastewater grading treatment device that effectively solves the problem that most manufacturers in the existing technology do not recover the gas generated during the electrolysis of water in the wastewater treatment process. Even if some manufacturers attempt to recover these gases, they often use complex equipment and processes: first, the gas needs to be separated from the floating suspended solids, and then hydrogen and oxygen need to be separated. This separation method is not only complex in process, but also has high equipment investment and operating costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a graded treatment device and method for industrial wastewater, comprising a wastewater treatment device body, and further comprising: a three-stage treatment chamber disposed at one end of the internal cavity of the wastewater treatment device body; an electrolytic electrode disposed at the bottom of the internal cavity of the three-stage treatment chamber; a diversion assembly disposed in the middle of the internal cavity of the three-stage treatment chamber; and a gas separation and recovery mechanism disposed on one side of the wastewater treatment device body and located at the top of one side of the three-stage treatment chamber, and the top of the gas separation and recovery mechanism is connected to the gas treatment chamber by an air extraction mechanism. A hydrogen fuel cell is connected to the gas separation and recovery mechanism located on one side of the wastewater treatment device body. A venting component is provided on the top of the gas separation and recovery mechanism, and the venting component will block the connection end between the gas extraction mechanism and the top of the gas separation and recovery mechanism. The gas separation and recovery mechanism includes a recovery box located on the top of one side of the wastewater treatment device body. A rotating water wheel is movably sleeved on the top of one side of each recovery box. A separation component located at the bottom of the rotating water wheel is movably installed in the inner cavity of the recovery box. A water passage component located below the rotating water wheel is provided in the inner cavity of the recovery box.

[0007] Preferably, a primary treatment chamber and a secondary treatment chamber are respectively provided at the other end and the middle part of the wastewater treatment device.

[0008] Preferably, the diversion assembly includes a fixed housing, a water pipe, and a guide plate;

[0009] The fixed shell is fixedly installed on the top of one side of the cavity of the tertiary treatment chamber. The water pipe is located in the middle of the tertiary treatment chamber, with one end of the water pipe connected to the fixed shell and the guide plate located at the other end of the water pipe.

[0010] Preferably, the separation assembly includes a movable plate, a limiting rod, and a first spring;

[0011] The movable plate is movably installed inside the recycling bin. The top of one side of the movable plate is slidably connected to the inside of the recycling bin via a limiting rod. The limiting rod is elastically connected to the inside of the recycling bin via a first spring.

[0012] Preferably, the water supply assembly includes a one-way valve disc, a top pipe bracket, and a sealing ring;

[0013] The one-way valve is located inside the movable plate, the jacking frame is located inside the recycling bin and at the bottom of the movable plate, and the sealing ring is located at the top of the jacking frame.

[0014] Preferably, the inside of the recycling bin is equipped with a filter assembly located below the top tube frame. The filter assembly includes a movable frame and a filter medium. The hydrogen fuel cell includes a battery casing, a top cover, and electrode rods.

[0015] The movable frame is movably installed inside the recycling bin, the filter medium is placed inside the movable frame, the battery casing is placed on one side of the wastewater treatment device body and located below the recycling bin, the top cover is placed on top of the battery casing, the electrode rod is placed inside the electrode rod, and the electrode rod is electrically connected to one side of the electrolytic electrode rod via an electrical wire.

[0016] Preferably, the air extraction mechanism includes a driving gear, a first driven gear, a connecting rod structure, a linkage assembly, an air intake fan blade, and an air extraction pipe;

[0017] The top of the recycling bin is fixedly connected to the hydrogen fuel cell via an exhaust pipe. The driving gear is located at one end of the rotating water wheel. The first driven gear is located inside the recycling bin, and the surface of the first driven gear meshes with the surface of the driving gear. The linkage assembly is located on one side of the recycling bin, and the linkage assembly is connected to the first driven gear via a connecting rod structure. The suction fan blade is located in the inner cavity of the driving gear and is located outside the linkage assembly.

[0018] Preferably, the linkage assembly includes a first bevel gear rod, a second bevel gear rod, and a second driven gear;

[0019] The first bevel gear rod is located on one side of the recycling bin, and one end of the first bevel gear rod is sleeved with one end of the connecting rod structure. The second bevel gear rod is located inside the recycling bin, and the end of the second bevel gear rod meshes with the end of the first bevel gear rod. The second driven gear is located at the bottom of the second bevel gear rod, and the second driven gear meshes with the surface of the suction fan blade.

[0020] Preferably, the ventilation assembly includes a ventilation baffle, a limiting shaft, a connecting frame, a second spring, and a triangular block;

[0021] The ventilation baffle is movably installed at both ends of the top of the movable plate. The limiting shaft is located inside the recycling bin and above the ventilation baffle. The connecting frame is installed on the top of the ventilation baffle, and the surface of the connecting frame is movably sleeved with the surface of the limiting shaft. The outside of the connecting frame is elastically connected to the inside of the recycling bin through a second spring. The triangular block is located at the bottom inner end of the connecting frame. The inside of the recycling bin is provided with a breathable and waterproof membrane located above the ventilation baffle.

[0022] The present invention also provides a method for graded treatment of industrial wastewater, the method comprising the following steps:

[0023] S1, the sewage is continuously introduced into the water pipe on one side of the sewage treatment device, and will enter the primary treatment chamber, secondary treatment chamber and tertiary treatment chamber in sequence to achieve graded treatment;

[0024] S2, when the sewage is diverted through the diversion component into both sides of the tertiary treatment chamber, the electrolysis rod is energized, so that the anode of the electrolysis rod and the sewage produce hydrogen, and the cathode and the sewage produce oxygen, and form bubbles to wrap the suspended matter upward.

[0025] S3, as the sewage level gradually rises, it will enter the gas separation and recovery mechanism. Through the accumulation of sewage inside the gas separation and recovery mechanism, it will push the ventilation component to disconnect the connection between the top of the gas separation and recovery mechanism and the exhaust mechanism.

[0026] S4, as wastewater continuously enters the gas separation and recovery mechanism, it drives the pumping mechanism to operate, creating negative pressure in the inner cavity. This draws away some of the gas on the surface of the wastewater inside the gas separation and recovery mechanism and recovers it to the hydrogen fuel cell to provide electricity, thus realizing energy recovery and utilization. The filter components inside the gas separation and recovery mechanism will block and retain suspended solids in the wastewater, and the water will be discharged and recovered through the external water pipe at the bottom of the gas separation and recovery mechanism.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] (1) By setting up a diversion component and a gas separation and recovery mechanism, when sewage can be guided to the interior of the tertiary treatment chamber through the diversion component, the sewage inside the tertiary treatment chamber is diverted to both sides by the diversion component, and the bubbles formed by hydrogen and oxygen generated by electrolysis of the electrolytic electrodes on both sides can be separated. Then, the water flows upward into the interior of the gas separation and recovery mechanism, which can realize the low-cost recovery of hydrogen and oxygen in the bubbles at the top of the sewage, avoid energy damage, and reduce costs.

[0029] (2) By setting up a gas separation and recovery mechanism and a ventilation component, when sewage enters the gas separation and recovery mechanism, the internal part of the gas separation and recovery mechanism can be lowered, which can then squeeze the inclined surfaces of the bottom inner parts of both ends of the ventilation component, causing the two ends of the ventilation component to move in opposite directions. This allows the inner end of the top to contact the top part of the suction mechanism to achieve a sealing effect, so that the top of the gas separation and recovery mechanism and the top of the suction mechanism can be smoothly linked, facilitating the subsequent separation and recovery of gas.

[0030] (3) By setting up an air extraction mechanism and a hydrogen fuel cell, the present invention removes the sealing obstruction on the top of the air extraction mechanism and the top of the gas separation and recovery mechanism through the ventilation component. When water is constantly flowing inside the gas separation and recovery mechanism, the rotating water wheel will rotate continuously. This will allow the air extraction mechanism to extract some of the gas inside the bubbles on the top of the wastewater in the recovery tank. Finally, the gas can be drawn back and introduced into the cathode and anode parts inside the hydrogen fuel cell, so that hydrogen enters the anode part and oxygen enters the cathode part, thereby successfully generating electrons to improve the overall energy of the hydrogen fuel cell and realizing the recovery and utilization of energy. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a partial cross-sectional structural diagram of the wastewater treatment device body of the present invention;

[0033] Figure 3 This is a cross-sectional view of the recycling bin of the present invention;

[0034] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0035] Figure 5 This is a cross-sectional view of the hydrogen fuel cell structure of the present invention;

[0036] Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point B;

[0037] Figure 7This is a schematic diagram of the structure of the electrolytic electrode rod of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of the air extraction component of the present invention;

[0039] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point C.

[0040] In the diagram: 1. Wastewater treatment unit body; 2. Primary treatment chamber; 3. Secondary treatment chamber; 4. Tertiary treatment chamber; 5. Electrolytic electrode rod; 6. Diversion assembly; 601. Fixed shell; 602. Water pipe; 603. Guide plate; 7. Gas separation and recovery mechanism; 701. Recovery box; 702. Rotating water wheel; 703. Separation assembly; 7031. Movable plate; 7032. Limiting rod; 7033. First spring; 704. Water circulation assembly; 7041. One-way valve; 7042. Jacking frame; 7043. Sealing ring; 8. Filter assembly; 801. Movable frame; 802. 9. Filter medium; 901. Air extraction mechanism; 902. First driven gear; 903. Linkage structure; 904. Linkage assembly; 9041. First bevel gear rod; 9042. Second bevel gear rod; 9043. Second driven gear; 905. Intake fan blade; 906. Air extraction pipe; 10. Ventilation assembly; 101. Ventilation baffle; 102. Limiting shaft; 103. Connecting frame; 104. Second spring; 105. Triangular block; 11. Breathable and waterproof membrane; 12. Hydrogen fuel cell; 1201. Battery casing; 1202. Top cover; 1203. Electrode rod. Detailed Implementation

[0041] 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.

[0042] like Figures 1 to 9As shown, the present invention provides an industrial wastewater graded treatment device and method, including a wastewater treatment device body 1, and further including: a three-stage treatment chamber 4, the three-stage treatment chamber 4 being disposed at one end of the inner cavity of the wastewater treatment device body 1; an electrolytic electrode 5, the electrolytic electrode 5 being disposed at the bottom of the inner cavity of the three-stage treatment chamber 4; a diversion assembly 6, the diversion assembly 6 being disposed in the middle of the inner cavity of the three-stage treatment chamber 4; and a gas separation and recovery mechanism 7, the gas separation and recovery mechanism 7 being disposed on one side of the wastewater treatment device body 1, and located at the top of one side of the three-stage treatment chamber 4, and the top being connected to the gas separation and recovery mechanism 9 located on one side of the wastewater treatment device body 1. The hydrogen fuel cell 12 is connected to the gas separation and recovery mechanism 7. A ventilation component 10 is provided on the top of the gas separation and recovery mechanism 7, and the ventilation component 10 will block the connection end between the pumping mechanism 9 and the top of the gas separation and recovery mechanism 7. The gas separation and recovery mechanism 7 includes a recovery box 701 located on the top of one side of the sewage treatment device body 1. Rotating water wheels 702 are movably sleeved on the top of one side of the two recovery boxes 701. A separation component 703 located at the bottom of the rotating water wheel 702 is movably installed in the inner cavity of the recovery box 701. A water passage component 704 located below the rotating water wheel 702 is provided in the inner cavity of the recovery box 701.

[0043] Wastewater can be diverted into both ends of the tertiary treatment chamber 4 via the diversion component 6. Then, the electrolysis electrode 5 is energized to cause an electrolytic reaction in the wastewater, producing oxygen and hydrogen. The oxygen and hydrogen form bubbles in the water, which carry suspended solids upward. The water then flows upward and is first guided by the rotating water wheel 702 to the inside of the recovery tank 701. The separation component 703 is pushed downward by the water pressure until the water flow component 704 opens the separation component 703, allowing the wastewater to flow downward smoothly. At the same time, the venting component 10 releases the seal on the air extraction mechanism 9 and the top of the recovery tank 701, and some of the gas inside the bubbles at the top of the wastewater is extracted and absorbed by the air extraction mechanism 9.

[0044] like Figure 1 As shown, the other end and the middle part of the sewage treatment device body 1 are respectively provided with a primary treatment chamber 2 and a secondary treatment chamber 3.

[0045] Using the above scheme: when the external water pipe is connected to the top of the sewage treatment device body 1 near the primary treatment chamber 2, the sewage can be introduced into the interior of the primary treatment chamber 2, the secondary treatment chamber 3 and the tertiary treatment chamber 4 for graded treatment. Since the primary treatment chamber 2 and the secondary treatment chamber 3 are existing technologies, they will not be described in detail.

[0046] like Figure 1 and Figure 2 As shown, the diversion assembly 6 includes a fixed housing 601, a water pipe 602, and a guide plate 603;

[0047] The fixed shell 601 is fixedly installed on the top of one side of the inner cavity of the three-stage treatment chamber 4. The water pipe 602 is located in the middle of the three-stage treatment chamber 4, and one end of the water pipe 602 is connected to the fixed shell 601. The guide plate 603 is located at the other end of the water pipe 602.

[0048] The above scheme is adopted: by setting up a guide plate 603, since the water pipe 602 is higher than the top of the guide plate 603, the sewage can be smoothly sprayed out from the other end of the water pipe 602 in a fountain-like manner. The design of the guide plate 603 can make the sprayed sewage impact and separate the sewage at both ends of the tertiary treatment chamber 4, and will also simultaneously separate the bubbles generated by the electrolysis electrode 5 when it is energized.

[0049] like Figure 4 As shown, the separation assembly 703 includes a movable plate 7031, a limiting rod 7032, and a first spring 7033;

[0050] The movable plate 7031 is movably installed in the inner cavity of the recycling bin 701. The top of one side of the movable plate 7031 is slidably sleeved with the inside of the recycling bin 701 through a limiting rod 7032. The limiting rod 7032 is elastically connected to the inside of the recycling bin 701 through a first spring 7033.

[0051] The above solution is as follows: by setting a first spring 7033, when the movable plate 7031 is pushed downward by water pressure, the first spring 7033 will be compressed, so that the middle part of the water flow component 704 can be opened smoothly, allowing water to flow downward. A part of the water pressure will be lost, so that the elastic force of the first spring 7033 is released to push the movable plate 7031 upward, which will help push some of the gas at the top of the sewage into the air extraction mechanism 9. When the water flow component 704 is stopped, the water pressure will continue to push the movable plate 7031 downward.

[0052] like Figure 5 and Figure 6 As shown, the water supply assembly 704 includes a one-way valve disc 7041, a jacking pipe bracket 7042, and a sealing ring 7043;

[0053] A one-way valve 7041 is located inside the movable plate 7031, and the jacking frame 7042 is located inside the recovery box 701 at the bottom of the movable plate 7031. A sealing ring 7043 is located at the top of the jacking frame 7042. With this design, by providing the sealing ring 7043, when the movable plate 7031 moves downward, the one-way valve 7041 at the top of the jacking frame 7042 will flip upward. Due to the design of the sealing ring 7043, the gap between the top of the one-way valve 7041 and the jacking frame 7042 can be sealed more effectively.

[0054] like Figure 5 and Figure 6As shown, the inside of the recycling bin 701 is equipped with a filter assembly 8 located below the top tube frame 7042. The filter assembly 8 includes a movable frame 801 and a filter medium 802. The hydrogen fuel cell 12 includes a battery casing 1201, a top cover 1202 and an electrode rod 1203.

[0055] The movable frame 801 is movably installed inside the recycling bin 701. The filter medium 802 is set inside the movable frame 801. The battery housing 1201 is set on one side of the sewage treatment device body 1 and located below the recycling bin 701. The top cover 1202 is set on the top of the battery housing 1201. The electrode rod 1203 is set inside the electrode rod 1203. The electrode rod 1203 is electrically connected to one side of the electrolytic electrode 5 through a wire.

[0056] The above scheme is adopted: the design of the filter medium 802 can filter the suspended solids electrolyzed in the sewage, and the filter medium 802 can be replaced by pulling the movable frame 801 and the filter medium 802 outward. The overall design of the hydrogen fuel cell 12 can provide power to the electrolysis electrode 5.

[0057] like Figure 8 and Figure 9 As shown, the air extraction mechanism 9 includes a driving gear 901, a first driven gear 902, a connecting rod structure 903, a linkage assembly 904, an air intake fan blade 905, and an air extraction pipe 906.

[0058] The top of the recycling bin 701 is fixedly connected to the hydrogen fuel cell 12 via an exhaust pipe 906. The drive gear 901 is located at one end of the rotating water wheel 702. The first driven gear 902 is located inside the recycling bin 701, and the surface of the first driven gear 902 meshes with the surface of the drive gear 901. The linkage component 904 is located on one side of the recycling bin 701, and the linkage component 904 is connected to the first driven gear 902 via a connecting rod structure 903. The suction fan blade 905 is located in the inner cavity of the drive gear 901 and is located outside the linkage component 904.

[0059] The above solution is adopted as follows: By setting up a linkage structure 903, when the rotating water wheel 702 is driven to rotate by sewage, it can drive the first driven gear 902 to drive the linkage structure 903 to rotate. Then, the linkage structure 903 can transmit the linkage component 904, so that the linkage component 904 drives the suction fan blade 905 to rotate, so that a negative pressure area is generated on one side of the suction fan blade 905 to extract gas.

[0060] like Figure 9 As shown, the linkage assembly 904 includes a first bevel gear rod 9041, a second bevel gear rod 9042, and a second driven gear 9043;

[0061] The first bevel gear rod 9041 is disposed on one side of the recycling box 701, and one end of the first bevel gear rod 9041 is sleeved with one end of the connecting rod structure 903. The second bevel gear rod 9042 is disposed inside the recycling box 701, and the end of the second bevel gear rod 9042 meshes with the end of the first bevel gear rod 9041. The second driven gear 9043 is disposed at the bottom of the second bevel gear rod 9042, and the second driven gear 9043 meshes with the surface of the suction fan blade 905.

[0062] The above scheme is adopted: by setting a second driven gear 9043, when the connecting rod structure 903 drives the first bevel gear rod 9041 to rotate, the gear on the surface can drive the second bevel gear rod 9042 to rotate, and then the gear on the surface of the second driven gear 9043 drives the intake fan blade 905 to rotate.

[0063] like Figure 9 As shown, the ventilation assembly 10 includes a ventilation baffle 101, a limiting shaft 102, a connecting frame 103, a second spring 104, and a triangular block 105;

[0064] Ventilation baffles 101 are movably installed at both ends of the top of the movable plate 7031. Limiting shafts 102 are located inside the recycling bin 701 and above the ventilation baffles 101. Connecting brackets 103 are installed on the top of the ventilation baffles 101, and the surface of the connecting brackets 103 is movably sleeved with the surface of the limiting shafts 102. The outer side of the connecting brackets 103 is elastically connected to the inside of the recycling bin 701 through a second spring 104. Triangular blocks 105 are located at the bottom inner end of the connecting brackets 103. A breathable and waterproof membrane 11 located above the ventilation baffles 101 is provided inside the recycling bin 701.

[0065] The above solution involves a triangular block 105. When the movable plate 7031 moves downward to the bottom, the bottom ends of the triangular block 105 are pressed against the inclined surface of the two ends, causing the connecting frame 103 and the ventilation baffle 101 to move in opposite directions. When the movable plate 7031 is pulled upward, the second spring 104 is released, pushing the connecting frame 103 and the ventilation baffle 101 back to their original positions. This allows for the removal of some impurities adhering to the bottom of the breathable and waterproof membrane 11, preventing blockage.

[0066] The present invention also provides a method for graded treatment of industrial wastewater, the method comprising the following steps:

[0067] S1, the user can first continuously introduce sewage into the water pipe on one side of the sewage treatment device body 1, and it will enter the primary treatment chamber 2, the secondary treatment chamber 3 and the tertiary treatment chamber 4 in sequence to achieve graded treatment;

[0068] S2, after the sewage enters the water pipe 602 through the fixed shell 601, it will be diverted by the guide plate 603 into both sides of the tertiary treatment chamber 4, and then the electrolytic electrode 5 will be energized, so that the anode of the electrolytic electrode 5 and the sewage will produce hydrogen gas, and the cathode and the sewage will produce oxygen gas. Then, due to the impact of the water flow at the position of the guide plate 603, the bubbles of hydrogen and oxygen gas generated by the anode and cathode in the sewage will be separated. Subsequently, the gas will generate bubbles inside the sewage to wrap the suspended matter upward.

[0069] S3, as the sewage level gradually rises, it enters the rotating water wheel 702, thereby driving the rotating water wheel 702 to rotate, so as to seal and guide the sewage with air bubbles into the recycling tank 701, which will push the movable plate 7031 to move downwards until the one-way valve 7041 inside the movable plate 7031 is opened by the top of the pipe rack 7042. Then the sewage will fall through the pipe rack 7042 and be filtered by the filter medium 802 before being discharged, while the suspended solids will remain on the top of the filter medium 802.

[0070] S4, as wastewater continuously enters the gas separation and recovery mechanism 7, it drives the pumping mechanism 9 to operate, causing negative pressure to be generated in the inner cavity. This draws away some of the gas on the surface of the wastewater inside the gas separation and recovery mechanism 7 and recovers it to the hydrogen fuel cell 12 to provide power, thus realizing energy recovery and utilization. Meanwhile, the filter component 8 inside the gas separation and recovery mechanism 7 will block and retain suspended solids in the wastewater, and the water will be discharged and recovered through the external water pipe at the bottom of the gas separation and recovery mechanism 7.

[0071] Specifically, as the movable plate 7031 moves downward, the bottom sides of the two sides press against the inclined surfaces of the triangular blocks 105, causing the triangular blocks 105, the connecting frame 103, and the venting baffle 101 to move in opposite directions. This allows the venting baffle 101 to release the sealing effect on the connection between the top of the recycling box 701 and the top of the suction pipe 906. Since the rotating water wheel 702 is driven to rotate by the water flow, it rotates through the drive gear 901. Due to the meshing relationship between the drive gear 901 and the first driven gear 902, the first driven gear 902 can be driven to rotate, and then the connecting rod structure 903 can... The first bevel gear rod 9041 rotates in conjunction with the second bevel gear rod 9042. Simultaneously, due to the meshing relationship between the ends of the first bevel gear rod 9041 and the second bevel gear rod 9042, the second bevel gear rod 9042 and the second driven gear 9043 can be driven to rotate. Finally, through the meshing relationship between the second driven gear 9043 and the surface of the suction fan blade 905, the entire suction fan blade 905 can be driven to rotate, causing a negative pressure area to be generated on one side of the suction fan blade 905. Part of the gas inside the bubbles on the surface of the sewage in the inner cavity of the recovery box 701 can be extracted through the suction pipe 906, while the breathable and waterproof membrane 11 can block the sewage.

[0072] It is not difficult to understand that this implementation 1 Figure 1 This diagram only illustrates the upstream and downstream relationship between primary treatment chamber 2, secondary treatment chamber 3, and tertiary treatment chamber 4. In practice, for industrial wastewater with small treatment volumes, additional treatment chambers can be used. Figure 1 In terms of overall structure, for industrial wastewater with large treatment volumes, the primary treatment chamber 2 and the secondary treatment chamber 3 can be treated as separate entities.

[0073] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial wastewater grading treatment device, comprising a wastewater treatment unit body (1), characterized in that, Also includes: A tertiary treatment chamber (4) is located at one end of the inner cavity of the wastewater treatment device body (1); an electrolytic electrode (5) is located at the bottom of the inner cavity of the tertiary treatment chamber (4); a diversion assembly (6) is located in the middle of the inner cavity of the tertiary treatment chamber (4); and a gas separation and recovery mechanism (7) is located on one side of the wastewater treatment device body (1) and at the top of one side of the tertiary treatment chamber (4), and the top is connected to a hydrogen fuel cell (12) located on one side of the wastewater treatment device body (1) via an extraction mechanism (9). (7) is provided with a ventilation component (10) at the top, and the ventilation component (10) will block the connection end of the top of the exhaust mechanism (9) and the gas separation and recovery mechanism (7); wherein the gas separation and recovery mechanism (7) includes a recovery box (701) provided on the top of one side of the sewage treatment device body (1), and a rotating water wheel (702) is movably sleeved on the top of one side of each of the two recovery boxes (701), and a separation component (703) located at the bottom of the rotating water wheel (702) is movably installed in the inner cavity of the recovery box (701), and a water supply component (704) located below the rotating water wheel (702) is provided in the inner cavity of the recovery box (701); The diversion assembly (6) includes a fixed shell (601), a water pipe (602), and a guide plate (603); the fixed shell (601) is fixedly installed on the top of one side of the inner cavity of the three-stage treatment chamber (4), the water pipe (602) is located in the middle of the three-stage treatment chamber (4), and one end of the water pipe (602) is connected to the fixed shell (601), and the guide plate (603) is located at the other end of the water pipe (602).

2. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The wastewater treatment device body (1) is provided with a primary treatment chamber (2) and a secondary treatment chamber (3) at the other end and the middle part, respectively.

3. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The separation assembly (703) includes a movable plate (7031), a limiting rod (7032), and a first spring (7033); the movable plate (7031) is movably installed in the inner cavity of the recycling bin (701), and the top of one side of the movable plate (7031) is slidably sleeved with the inside of the recycling bin (701) through the limiting rod (7032), and the limiting rod (7032) is elastically connected to the inside of the recycling bin (701) through the first spring (7033).

4. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The water supply assembly (704) includes a one-way valve disc (7041), a jacking pipe frame (7042), and a sealing ring (7043); the one-way valve disc (7041) is located inside the movable plate (7031), the jacking pipe frame (7042) is located inside the recovery box (701) and at the bottom of the movable plate (7031), and the sealing ring (7043) is located at the top of the jacking pipe frame (7042).

5. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The recycling bin (701) is equipped with a filter assembly (8) located below the top pipe frame (7042). The filter assembly (8) includes a movable frame (801) and a filter medium (802). The hydrogen fuel cell (12) includes a battery shell (1201), a top cover (1202), and an electrode rod (1203). The movable frame (801) is movably installed inside the recycling bin (701). The filter medium (802) is located inside the movable frame (801). The battery shell (1201) is located on one side of the sewage treatment device body (1) and below the recycling bin (701). The top cover (1202) is located on the top of the battery shell (1201). The electrode rod (1203) is located inside the electrode rod (1203). The electrode rod (1203) is electrically connected to one side of the electrolytic electrode rod (5) via a wire.

6. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The suction mechanism (9) includes a drive gear (901), a first driven gear (902), a connecting rod structure (903), a linkage component (904), a suction fan blade (905), and a suction pipe (906). The top of the recovery box (701) is fixedly connected to the hydrogen fuel cell (12) through the suction pipe (906). The drive gear (901) is located at one end of the rotating water wheel (702). The first driven gear (902) is located inside the recovery box (701), and the surface of the first driven gear (902) meshes with the surface of the drive gear (901). The linkage component (904) is located on one side of the recovery box (701), and the linkage component (904) is connected to the first driven gear (902) through the connecting rod structure (903). The suction fan blade (905) is located in the inner cavity of the drive gear (901) and is located outside the linkage component (904).

7. The industrial wastewater grading treatment equipment according to claim 6, characterized in that, The linkage assembly (904) includes a first bevel gear rod (9041), a second bevel gear rod (9042), and a second driven gear (9043). The first bevel gear rod (9041) is disposed on one side of the recycling bin (701), and one end of the first bevel gear rod (9041) is sleeved with one end of the connecting rod structure (903). The second bevel gear rod (9042) is disposed inside the recycling bin (701), and the end of the second bevel gear rod (9042) meshes with the end of the first bevel gear rod (9041). The second driven gear (9043) is disposed at the bottom of the second bevel gear rod (9042), and the second driven gear (9043) meshes with the surface of the suction fan blade (905).

8. The industrial wastewater grading treatment equipment according to claim 1, characterized in that, The ventilation assembly (10) includes a ventilation baffle (101), a limiting shaft (102), a connecting frame (103), a second spring (104), and a triangular block (105). The ventilation baffle (101) is movably installed at both ends of the top of the movable plate (7031). The limiting shaft (102) is located inside the recycling bin (701) and above the ventilation baffle (101). The connecting frame (103) is installed on the top of the ventilation baffle (101), and the surface of the connecting frame (103) is movably sleeved with the surface of the limiting shaft (102). The outer side of the connecting frame (103) is elastically connected to the inside of the recycling bin (701) through the second spring (104). The triangular block (105) is located at the bottom inner end of the connecting frame (103). The inside of the recycling bin (701) is provided with a breathable and waterproof membrane (11) located above the ventilation baffle (101).

9. The treatment method of the industrial wastewater graded treatment equipment according to any one of claims 1-8, characterized in that, The processing method includes the following steps: S1, the sewage is continuously introduced into the water pipe on one side of the sewage treatment device body (1), and will enter the primary treatment chamber (2), secondary treatment chamber (3) and tertiary treatment chamber (4) in sequence to achieve graded treatment; S2, when the sewage is diverted through the diversion component (6) into both sides of the cavity of the tertiary treatment chamber (4), the electrolytic electrode (5) is energized, so that the anode of the electrolytic electrode (5) and the sewage produce hydrogen, the cathode and the sewage produce oxygen, and bubbles are formed to wrap the suspended matter upward; S3, as the sewage level gradually rises, it will enter the gas separation and recovery mechanism (7). Through the accumulation of sewage inside the gas separation and recovery mechanism (7), it will push the ventilation component (10) to disconnect the connection between the top of the gas separation and recovery mechanism (7) and the extraction mechanism (9). S4, as sewage continuously enters the gas separation and recovery mechanism (7), it drives the pumping mechanism (9) to operate, causing negative pressure to be generated in the inner cavity. This draws away some of the gas on the surface of the sewage inside the gas separation and recovery mechanism (7) and recovers it to the hydrogen fuel cell (12) to provide electricity, thus realizing energy recovery and utilization. The filter component (8) inside the gas separation and recovery mechanism (7) will block and retain suspended solids in the sewage, and the water will be discharged and recovered through the external water pipe at the bottom of the gas separation and recovery mechanism (7).

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