A production wastewater oxidation recovery device

Abstract

The present invention relates to the field of production wastewater oxidation recovery, and specifically to a production wastewater oxidation recovery device, comprising an evaporation box, an evaporation assembly being provided in the evaporation box, and a condensation assembly being provided at an upper port of the evaporation box; the evaporation assembly comprising a rotating shaft horizontally arranged across the evaporation box, a wheel body being coaxially fixedly connected to the middle position of the rotating shaft, and a plurality of arc-shaped evaporation plates being provided on the surface of the wheel body; in the present invention, the wheel body is designed to stir hydrogen bromide wastewater and an oxidant, hydrogen peroxide, continuously during rotation, thereby ensuring full contact between the oxidant and the wastewater and improving the oxidation reaction efficiency of the hydrogen bromide and hydrogen peroxide; and simultaneously, as the wheel body continuously rotates, each evaporation plate can be continuously rotated out of the mixed liquid. After being carried out, the evaporation plate can quickly heat and evaporate the elemental bromine solution on the evaporation plate, thereby significantly improving the evaporation effect.

Description

Technical Field

[0001] The invention relates to the field of production wastewater oxidation recovery, in particular to a production wastewater oxidation recovery device. Background Art

[0002] In the dye processing industry, 2% of every ton of dye produced is discharged as wastewater, resulting in significant economic losses and environmental pollution. This wastewater contains cyanide, a difficult-to-treat substance. The centrifugal washing process in bromide solution produces a large amount of cyanide-containing mother liquor. This cyanide-containing mother liquor is characterized by complex composition, high color, high COD and BOD concentrations, high levels of suspended solids, significant variability in water quality and volume, and a high concentration of recalcitrant substances, making it one of the most challenging industrial wastewaters to treat.

[0003] The treatment method for washing mother liquor containing cyanide is generally to thermally oxidize the hydrogen bromide in the mother liquor into elemental bromine, and the elemental bromine is returned to the bromination process to further participate in the reaction, which reduces the discharge of wastewater, realizes the recycling of dye intermediate wastewater, and improves the product yield and reduces production costs. At present, hydrogen bromide is thermally oxidized into elemental bromine, usually using hydrogen peroxide as an oxidant. Hydrogen peroxide reacts with hydrogen bromide under acidic conditions to produce water and elemental bromine. The oxidized reaction liquid is then distilled, and the bromine is distilled out by utilizing the low boiling point of bromine. When hydrogen peroxide is mixed with hydrogen bromide for reaction, the mixing degree of the two must be ensured to produce more elemental bromine and achieve the subsequent distillation effect. The current distillation equipment is limited to being a container for solution due to its structural design. There is still room for expansion for mixing multiple materials.

[0004] Therefore, in order to solve the above problems, a production wastewater oxidation recovery device is proposed. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the production wastewater oxidation recovery device of the present invention comprises an evaporation box, an evaporation component is provided in the evaporation box, and a condensation component is provided at the upper port of the evaporation box;

[0007] The evaporation assembly includes a rotating shaft, which is horizontally arranged across the evaporation box. A wheel body is fixedly connected to the center of the rotating shaft and the wheel body has multiple arc-shaped evaporation plates on its surface.

[0008] The condensing assembly includes a cover plate covering the upper port of the evaporator, and a material pipe is connected to the cover plate. The end of the material pipe extends downward at an angle, and the inclined part of the material pipe is a condenser. The water inlet end of the outer tube of the condenser is extended downward, and the water outlet end of the outer tube of the condenser is extended upward. The inlet end of the inner tube of the condenser is expanded and connected to the upper port of the evaporator.

[0009] Preferably, a conductive assembly is provided between both sides of the wheel body and the inner side wall of the evaporation box, the conductive assembly being used to transmit current to the evaporation plate, and the conductive assembly includes a ring body, the interior of the ring body being hollow, one end face of the ring body being fixedly connected to the inner side wall of the evaporation box via a plurality of insulating rods, the end face of the ring body opposite to the wheel body being open, and a plurality of conductive rods being provided in the open opening of the ring body, one end of the conductive rod being attached to the inner surface of the outer ring plate of the ring body for sliding, and the other end of the conductive rod being fixedly connected to the side wall of the wheel body;

[0010] Two conductive rods opposite to each other on both sides of the wheel body are electrically connected to an evaporation plate.

[0011] Preferably, the inner surface of the lower half of the outer ring plate of the ring body is arranged away from one end of the conductive rod.

[0012] Preferably, a plurality of strip grooves are evenly formed on the outer surface of each evaporation plate, and the strip grooves are formed along both sides of the wheel body. Drainage grooves are also formed on both sides of each evaporation plate, and the drainage grooves are arranged to overlap with both sides of the strip grooves.

[0013] Preferably, the other end of each conductive rod is connected to the side wall of the wheel body through a spring, and one end of the conductive rod is inclined and arranged away from the axis of the wheel body.

[0014] Preferably, a cover plate is provided inside the upper port of the evaporation box, the upper edge of the cover plate is fixed to the cover plate, the lower edge of the cover plate is arranged in an arc shape, and the lower edge of the cover plate is arranged close to the surface of the evaporation plate.

[0015] Preferably, a roller brush is provided on one side of the cover plate, both ends of the roller brush are rotatably connected to the evaporator box, and the end of the roller brush is connected to the end of the rotating shaft through a belt.

[0016] Preferably, one end of the conductive rod is rotatably connected to a ring-shaped conductor, which is conductively attached to the inner surface of the upper half of the outer ring enclosure and rolls.

[0017] Preferably, annular baffles are provided on both side edges of the wheel body.

[0018] Preferably, the inner tube surface of the condenser is provided with multiple vortex-shaped tube bodies, and the multiple tube bodies are connected end to end in sequence.

[0019] The present invention is beneficial in that:

[0020] 1. In the present invention, the wheel is designed to continuously stir the hydrogen bromide wastewater and the oxidant hydrogen peroxide during rotation, ensuring sufficient contact between the oxidant and the wastewater and improving the oxidation reaction efficiency of the hydrogen bromide and hydrogen peroxide. Furthermore, as the wheel rotates continuously, each evaporation plate can be continuously rotated out of the mixed liquid. After being removed, the evaporation plate can quickly heat and evaporate the elemental bromine solution on the evaporation plate, significantly improving the evaporation effect.

[0021] 2. In the present invention, the strip grooves increase the surface area of the evaporation plate, allowing it to contact more mixed liquid, further improving the evaporation efficiency of the elemental bromine solution. At the same time, when the strip grooves are placed in the mixed liquid, they increase the resistance to the mixed liquid, and the rotating wheel can further agitate the mixed liquid. At the same time, the drainage grooves are provided to guide the flow path of the mixed liquid in the strip grooves to prevent the mixed liquid from dripping onto the ring body or the conductive rod and causing corrosion to the ring body or the conductive rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a first perspective perspective view of the recovery device of the present invention;

[0023] Figure 2 A second perspective view of the recovery device of the present invention;

[0024] Figure 3 is a cross-sectional view of the recovery device of the present invention;

[0025] Figure 4 This is a three-dimensional diagram of the cooperation between the wheel body and the cover plate in the present invention;

[0026] Figure 5 This is a three-dimensional diagram of the cooperation between the wheel body and the roller brush in the present invention;

[0027] Figure 6 is a cross-sectional view of the condenser in the present invention;

[0028] Figure 7 is a three-dimensional diagram of the wheel body of the present invention;

[0029] Figure 8 This is a three-dimensional diagram of the matching of the cover plate and the material pipe in the present invention;

[0030] Figure 9 is a three-dimensional diagram of the conductive component of the present invention;

[0031] Figure 10 Schematic diagram of the coordination between the ring body and the conductor in the present invention;

[0032] Figure 11 is a three-dimensional diagram of the ring body of the present invention;

[0033] Figure 12 A three-dimensional diagram of a conductive rod in the present invention;

[0034] Figure 13 It is a three-dimensional diagram of the tube body in the present invention.

[0035] In the figure: 1. Evaporation box; 2. Rotating shaft; 3. Wheel body; 4. Evaporation plate; 5. Cover plate; 6. Material pipe; 7. Condenser tube; 8. Outer tube; 9. Inner tube; 10. Ring body; 11. Insulating rod; 12. Conductive rod; 13. Strip groove; 14. Drainage groove; 15. Spring; 16. Cover plate; 17. Rolling brush; 18. Baffle; 19. Tube body; 20. Conductor. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] Reference Figure 1 - Figure 8 , a production wastewater oxidation recovery device, comprising an evaporation box 1, an evaporation component is provided in the evaporation box 1, and a condensation component is provided at the upper port of the evaporation box 1;

[0038] The evaporation assembly includes a rotating shaft 2, which is horizontally arranged across the evaporation box 1. A wheel body 3 is coaxially fixed to the middle position of the rotating shaft 2. A plurality of arc-shaped evaporation plates 4 are provided on the surface of the wheel body 3.

[0039] The condensing assembly includes a cover plate 5 covering the upper port of the evaporation box 1. The cover plate 5 is connected to a material pipe 6. The end of the material pipe 6 extends downward at an angle. The inclined portion of the material pipe 6 is a condenser pipe 7. The water inlet end of the outer pipe 8 of the condenser pipe 7 extends downward, and the water outlet end of the outer pipe 8 of the condenser pipe 7 extends upward. The inlet end of the inner pipe 9 of the condenser pipe 7 is flared and connected to the upper port of the evaporation box 1.

[0040] In this embodiment, the end of the rotating shaft 2 is connected to an external drive device, such as a motor capable of driving the rotating shaft 2 in forward and reverse rotation. A feed port is provided at the upper end of the evaporation box 1 for feeding hydrogen bromide wastewater and the oxidant hydrogen peroxide, and the feed port is in a normally closed state. The bottom of the evaporation box 1 is arranged in an arc shape and is designed to adapt to the outer contour of the wheel body 3. A discharge port is also provided at the bottom of the evaporation box 1 for discharging the waste material from the subsequent distillation. The multiple evaporation plates 4 on the wheel body 3 are connected to a power source through the wheel body 3. The evaporation plates 4 are used to evaporate the bromine solution, i.e., the bromine solution generated by the hydrogen bromide wastewater and the oxidant hydrogen peroxide. The material pipe 6 is provided to insulate the condenser 7 and the bromine vapor, thereby reducing the temperature interference of the bromine vapor by the external environment.

[0041] The hydrogen bromide wastewater and the oxidant hydrogen peroxide are filled into the evaporation box 1 to form a mixed liquid, and then the motor is driven to drive the wheel body 3 to rotate through the rotating shaft 2;

[0042] During the slow rotation of the wheel body 3, the wheel body 3 can stir the mixed liquid in the evaporation box 1 to ensure that the oxidant is in full contact with the wastewater, thereby improving the oxidation reaction efficiency of hydrogen bromide and hydrogen peroxide. At the same time, after the evaporation plate 4 rotates out of the mixed liquid, the mixed liquid dipped on the evaporation plate 4 is heated and evaporated by the evaporation plate 4, and the boiling point difference between water and bromine is used for separation. The boiling point of water is 100°C, while the boiling point of bromine is 58.8°C. By controlling the current passed through the evaporation plate 4, the temperature of the evaporation plate 4 is controlled, so that the mixed liquid dipped on the evaporation plate 4 is heated to 60°C-80°C, and the elemental bromine solution evaporates and flows into the material pipe 6 along the upper port of the evaporation box 1, and then flows into the condenser 7. Cooling water is continuously passed into the outer tube 8 of the condenser 7 to cool the vaporized elemental bromine. It is cooled and becomes elemental bromine liquid, and finally flows out from the lower end of the inner tube 9 of the condenser 7 for centralized recovery.

[0043] In this embodiment, the wheel body 3 is designed to firstly stir the hydrogen bromide wastewater and the oxidant hydrogen peroxide during rotation, and the stirring is continuous, which can ensure that the oxidant and the wastewater are in full contact, thereby improving the oxidation reaction efficiency of the hydrogen bromide and hydrogen peroxide. At the same time, the wheel body 3 is continuously rotated to continuously rotate each evaporation plate 4 out of the mixed liquid. After being pulled out, the evaporation plate 4 can quickly heat and evaporate the elemental bromine solution on the evaporation plate 4, thereby significantly improving the evaporation effect.

[0044] Reference Figure 1 - Figure 12 A conductive component is provided between both sides of the wheel body 3 and the inner wall of the evaporation box 1. The conductive component is used to transmit current to the evaporation plate 4, and the conductive component includes a ring body 10. The interior of the ring body 10 is hollow. One end face of the ring body 10 is fixed to the inner wall of the evaporation box 1 through a plurality of insulating rods 11. The end face opposite to the ring body 10 and the wheel body 3 is open. A plurality of conductive rods 12 are provided in the open mouth of the ring body 10. One end of the conductive rod 12 is attached to the inner surface of the outer ring plate of the ring body 10 and slides. The other end of the conductive rod 12 is fixed to the side wall of the wheel body 3.

[0045] Two conductive rods 12 on opposite sides of the wheel body 3 are electrically connected to an evaporation plate 4;

[0046] The setting of the conductive component can independently supply stable power to the evaporation plate 4, while reducing the possibility of short circuit of the recovery device as a whole; the ring body 10 is fixed to the evaporation box 1 through the insulating rod 11, and the entire ring body 10 is set in the evaporation plate 4, which can be electrically connected to the external power supply through a wire. The ring bodies 10 on both sides of the wheel body 3 are connected to the positive pole of the power supply and the negative pole of the power supply. One end of the conductive rod 12 slides along the inner surface of the outer ring plate of the ring body 10. At this time, the evaporation plate 4 is electrically connected to the ring body 10 through the conductive rod 12, that is, the evaporation plate 4 is electrically connected to the ring body 10 through the conductive rod 12. The generator plate 4 is electrically connected to the positive and negative electrodes of the power supply; the conductive rod 12 is arranged close to the axis of the wheel body 3, the liquid level of the mixed liquid in the evaporation box 1 is lower than the height of the conductive rod 12, and the ring body 10 is also located above the liquid level of the mixed liquid. Even if the wheel body 3 rotates and stirs the mixed liquid, the swing of the mixed liquid cannot contact the conductive rod 12 and the ring body 10, which reduces the possibility of short circuit of the entire recovery device. At the same time, one end of the conductive rod 12 slides along the inner surface of the outer ring plate of the ring body 10, which can provide stable power to the evaporation plate 4.

[0047] Reference Figure 1 - Figure 12 , the inner surface of the lower half of the outer ring plate of the ring body 10 is arranged away from one end of the conductive rod 12;

[0048] like Figure 10 As shown, the outer ring panel of the ring body 10 is protruding downward. When the conductive rod 12 rotates relatively to the lower half of the ring body 10, one end of the conductive rod 12 is no longer in contact with the ring body 10. At this time, the upper half of the outer ring panel of the ring body 10 is in electrical contact with the conductive rod 12, which controls the evaporation plate 4 rotating out of the mixed liquid to pass current. That is, the evaporation plate 4 rotating out of the mixed liquid has the function of heating and evaporating the elemental bromine solution. This design saves power by controlling the power supply of a single or multiple evaporation plates 4 instead of all evaporation plates 4, thereby saving electricity resources. Secondly, it avoids continuous heating of the mixed liquid. When the mixed liquid is heated to nearly 100°C, some water will evaporate and mix with the bromine vapor, affecting the extraction and recovery quality of the elemental bromine solution.

[0049] Reference Figure 1 - Figure 7 , a plurality of strip grooves 13 are evenly formed on the outer surface of each evaporation plate 4, and the strip grooves 13 are formed along both sides of the wheel body 3, and drainage grooves 14 are also formed on both sides of each evaporation plate 4, and the drainage grooves 14 are arranged to overlap with both sides of the strip grooves 13;

[0050] The strip grooves 13 are provided to increase the surface area of the evaporation plate 4, contacting more mixed liquid, and further improving the evaporation efficiency of the elemental bromine solution. At the same time, when the strip grooves 13 are placed in the mixed liquid, they increase the resistance to the mixed liquid, and the rotating wheel body 3 can further stir the mixed liquid;

[0051] The drainage groove 14 is provided to guide the flow path of the mixed liquid in the strip groove 13 to prevent the mixed liquid from dripping onto the ring body 10 or the conductive rod 12 and causing corrosion to the ring body 10 or the conductive rod 12.

[0052] Reference Figure 1 - Figure 12 The other end of each conductive rod 12 is connected to the side wall of the wheel body 3 through a spring 15, and one end of the conductive rod 12 is inclined and away from the axis of the wheel body 3;

[0053] The conductive rod 12 is connected to the wheel body 3 through a spring 15, and the spring 15 is electrically connected to the evaporation plate 4. The elasticity of the spring 15 allows one end of the conductive rod 12 to continuously squeeze the inner surface of the upper half of the outer ring plate of the ring body 10 in an inclined state, which is also a way to improve the electrical stability of the connection between the conductive rod 12 and the ring body 10. Even if one end of the conductive rod 12 and the ring body 10 rotate and rub against each other, the elasticity of the spring 15 can ensure the stability of the electrical connection between the conductive rod 12 and the ring body 10.

[0054] Reference Figure 1 - Figure 8 A cover plate 16 is provided inside the upper port of the evaporation box 1. The upper edge of the cover plate 16 is fixed to the cover plate 5. The lower edge of the cover plate 16 is arranged in an arc shape, and the lower edge of the cover plate 16 is arranged close to the surface of the evaporation plate 4.

[0055] The lower edge of the cover plate 16 is disposed close to the evaporation plate 4. After bromine vapor is generated on the evaporation plate 4, the flow of the bromine vapor is guided so that the bromine vapor can fully flow along the material pipe 6 into the condenser tube 7, thereby reducing the amount of bromine vapor flowing out of the evaporation box 1 and improving the evaporation extraction and recovery efficiency of the elemental bromine solution.

[0056] Reference Figure 1 - Figure 5 , a roller brush 17 is provided on one side of the cover plate 16, both ends of the roller brush 17 are rotatably connected to the evaporation box 1, and the end of the roller brush 17 is connected to the end of the rotating shaft 2 through a belt;

[0057] Pulleys are provided at the ends of the roller brush 17 and the end of the rotating shaft 2, and the two pulleys are connected by a belt drive. When the wheel body 3 rotates, the roller brush 17 is also driven to rotate, and the rotation of the roller brush 17 can clean foreign matter on the evaporation plate 4, and loosen some foreign matter attached to the evaporation plate 4. When the evaporation plate 4 rotates again into the mixed liquid, it can directly contact the mixed liquid, ensuring the heating and evaporation effect of the evaporation plate 4 on the elemental bromine solution. The rotation of the roller brush 17 rotates with the rotation of the wheel body 3, and no additional power source is required to drive the roller brush 17 to rotate.

[0058] Reference Figure 1 - Figure 12One end of the conductive rod 12 is rotatably connected to a ring-shaped conductor 20, which is attached to the inner surface of the upper half of the outer ring of the ring body 10 and rolls;

[0059] A conductor 20 is set at one end of the conductive rod 12. The conductor 20 can be attached to the inner surface of the upper half of the outer ring panel of the ring body 10 and roll, converting the sliding friction between the conductive rod 12 and the ring body 10 into rolling friction between the conductor 20 and the ring body 10, reducing wear. At the same time, a brush can be set on the outer surface of the inner ring panel of the ring body 10, and the brush can contact the surface of the conductor 20. During the rotation of the conductor 20, the brush cleans the surface of the conductor 20 and removes foreign matter or wear debris on the surface of the conductor 20, thereby ensuring a good electrical connection between the conductive rod 12 and the ring body 10.

[0060] Reference Figure 1 - Figure 7 , annular baffles 18 are provided on both side edges of the wheel body 3;

[0061] The baffle 18 is used to assist the guide groove in limiting the flow of the mixed liquid. The baffle 18 can shield the mixed liquid to prevent the mixed liquid on the surface of the evaporation plate 4 above from dripping onto the conductive rod 12 or the ring body 10.

[0062] Reference Figure 1 - Figure 13 The inner tube 9 of the condenser tube 7 is provided with a plurality of vortex-shaped tube bodies 19 on its surface, and the plurality of tube bodies 19 are connected end to end in sequence;

[0063] The surface of the inner tube 9 of the condenser 7 is provided with a multi-vortex tube body 19, so that the bromine vapor can flow along the tube body 19, and the setting of the tube body 19 can extend the cooling path and duration of the bromine vapor. Even if more bromine vapor is generated, the condenser 7 can fully cool the bromine vapor into a single bromine solution.

[0064] Working principle: hydrogen bromide wastewater and oxidant hydrogen peroxide are filled into the evaporation box 1 to form a mixed liquid, and then the motor is driven, which drives the wheel body 3 to rotate through the rotating shaft 2; during the slow rotation of the wheel body 3, the wheel body 3 can stir the mixed liquid in the evaporation box 1 to ensure that the oxidant and the wastewater are in full contact, thereby improving the oxidation reaction efficiency of hydrogen bromide and hydrogen peroxide. At the same time, after the evaporation plate 4 rotates out of the mixed liquid, the mixed liquid dipped on the evaporation plate 4 is heated and evaporated by the evaporation plate 4, and the boiling point difference between water and bromine is used for separation. The boiling point of water is 100°C, while the boiling point of bromine is 58.8°C. By controlling the current flowing through the evaporation plate 4 and the temperature of the evaporation plate 4, the mixed liquid dipped on the evaporation plate 4 is heated to 60°C-80°C, and the elemental bromine solution evaporates and flows into the material pipe 6 along the upper port of the evaporation box 1, and then flows into the condenser 7. Cooling water is continuously passed into the outer tube 8 of the condenser 7 to cool the vaporized elemental bromine, turning it into elemental bromine liquid, and finally flowing out from the lower end of the inner tube 9 of the condenser 7 for centralized recovery.

[0065] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A production wastewater oxidation recovery device, characterized by: It includes an evaporation box, an evaporation component is provided in the evaporation box, and a condensation component is provided at the upper port of the evaporation box; The evaporation assembly includes a rotating shaft, which is horizontally arranged across the evaporation box. A wheel body is fixedly connected to the center of the rotating shaft and the wheel body has multiple arc-shaped evaporation plates on its surface. The condensing assembly includes a cover plate covering the upper port of the evaporator, the cover plate is connected to a material pipe, the end of the material pipe extends obliquely downward, and the inclined portion of the material pipe is a condenser pipe, the outer pipe water inlet end of the condenser pipe is extended downward, the outer pipe water outlet end of the condenser pipe is extended upward, the inner pipe inlet end of the condenser pipe is expanded and connected to the upper port of the evaporator; A conductive assembly is provided between the two sides of the wheel body and the inner wall of the evaporation box. The conductive assembly is used to transmit current to the evaporation plate, and the conductive assembly includes a ring body, the interior of the ring body is hollow, and one end face of the ring body is fixedly connected to the inner wall of the evaporation box via multiple insulating rods. The end face opposite to the ring body is open, and multiple conductive rods are provided in the open opening of the ring body. One end of the conductive rod is attached to the inner surface of the outer ring plate of the ring body and slides, and the other end of the conductive rod is fixedly connected to the side wall of the wheel body. Two conductive rods opposite to each other on both sides of the wheel body are electrically connected to an evaporation plate.

2. The production wastewater oxidation recovery device according to claim 1, characterized in that: The inner surface of the lower half of the outer ring plate of the ring body is arranged away from one end of the conductive rod.

3. The production wastewater oxidation recovery device according to claim 1, characterized in that: The outer surface of each evaporation plate is evenly provided with a plurality of strip grooves, which are opened along both sides of the wheel body. In addition, drainage grooves are also opened on both sides of each evaporation plate, and the drainage grooves are arranged to overlap with both sides of the strip grooves.

4. The production wastewater oxidation recovery device according to claim 2, characterized in that: The other end of each conductive rod is connected to the side wall of the wheel body through a spring, and one end of the conductive rod is inclined and arranged away from the axis of the wheel body.

5. The production wastewater oxidation recovery device according to claim 1, characterized in that: A cover plate is provided inside the upper port of the evaporation box, the upper edge of the cover plate is fixed on the cover plate, the lower edge of the cover plate is arranged in an arc shape, and the lower edge of the cover plate is arranged close to the surface of the evaporation plate.

6. The production wastewater oxidation recovery device according to claim 5, characterized in that: A roller brush is provided on one side of the cover plate, both ends of the roller brush are rotatably connected to the evaporator box, and the end of the roller brush is connected to the end of the rotating shaft through a belt.

7. The production wastewater oxidation recovery device according to claim 3, characterized in that: One end of the conductive rod is rotatably connected to a ring-shaped conductor, and the conductor is attached to the inner surface of the upper half of the outer ring plate and rolls.

8. The production wastewater oxidation recovery device according to claim 4, characterized in that: Ring-shaped baffles are provided on the edges of both sides of the wheel body.

9. The production wastewater oxidation recovery device according to claim 1, characterized in that: The inner tube surface of the condenser is provided with multiple vortex-shaped tube bodies, and the multiple tube bodies are connected end to end in sequence.

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