A capacitor electrolyte production wastewater resource treatment device

Abstract

This invention relates to the field of wastewater treatment technology, specifically to a device for the resource recovery treatment of wastewater from capacitor electrolyte production. The device includes a closed evaporation cylinder and a main drive shaft located at the center of the closed evaporation cylinder. It also includes a centrifugal evaporation unit disposed within the closed evaporation cylinder, comprising several conical evaporation discs surrounding the main drive shaft. The centrifugal evaporation unit is used to spread the wastewater into a film through centrifugal force generated by high-speed rotation. A feeding and distributing mechanism is located outside the conical evaporation discs. This invention uses a centrifugal distributor to evenly distribute wastewater onto the surface of the high-speed rotating conical evaporation discs. Centrifugal force causes it to spread into an extremely thin liquid film, significantly increasing the evaporation area and inhibiting coking. The evaporation discs, made of magnetically conductive material, rotate and cut magnetic lines of force, generating internal eddy currents that self-heat the liquid film through non-contact induction heating, achieving continuous evaporation and separation, which is beneficial for improving wastewater treatment efficiency and resource recovery efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a device for the resource-based treatment of wastewater from capacitor electrolyte production. Background Technology

[0002] The production of capacitor electrolytes generates a large amount of organic wastewater containing ethylene glycol. Ethylene glycol, as an important chemical raw material, has high recycling value. Direct discharge not only wastes resources but also causes serious environmental pollution. Currently, resource-based treatment of this wastewater to recover useful components such as ethylene glycol has become a consensus and urgent need within the industry. Traditional treatment methods often employ evaporation and concentration to remove water and obtain a concentrated ethylene glycol solution, thus achieving resource recovery.

[0003] However, capacitor electrolyte wastewater contains highly viscous and easily coking components such as ethylene glycol. During evaporation, localized overheating and scaling can easily occur on the heating surface. Traditional evaporators or tubular evaporators have static heating surfaces, resulting in long residence times and slow material turnover. This leads to rapid accumulation of coking layers. Coking not only significantly reduces heat transfer efficiency and increases energy consumption, but also forces the equipment to be shut down frequently for cleaning, seriously affecting processing efficiency and operational reliability, making it difficult to achieve continuous and stable resource recovery. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a resource-based treatment device for capacitor electrolyte production wastewater, in order to solve the problem that traditional evaporation equipment is prone to local dry burning and scaling on the heating surface when treating wastewater containing high viscosity and easily coking components such as ethylene glycol, resulting in a decrease in heat transfer efficiency and difficulty in achieving stable treatment and recycling.

[0005] To achieve the above objectives, the present invention provides a device for the resource-based treatment of capacitor electrolyte production wastewater, comprising a closed evaporation cylinder and a main drive shaft disposed at the center inside the closed evaporation cylinder, and further comprising: A centrifugal evaporation unit is disposed inside the closed evaporation cylinder. It includes a plurality of conical evaporation discs spaced axially on the main drive shaft. The centrifugal evaporation unit is used to spread wastewater into a film by generating centrifugal force through high-speed rotation. The feeding and distributing mechanism is located on the upper side of the conical evaporation plate. It includes a centrifugal distributor surrounding the central area of ​​the conical evaporation plate. When the main drive shaft drives the conical evaporation plate to rotate, the wastewater is transported to the surface of the conical evaporation plate through the centrifugal distributor, and the wastewater spreads towards the edge to form a thin liquid film. An electromagnetic heating mechanism is located below the conical evaporation plate. It includes an array of electromagnets that are uniformly arranged around the axis of the main drive shaft. The array of electromagnets is connected to a DC adjustable power supply and generates a constant magnetic field. The conical evaporation disk rotates in a constant magnetic field, cutting magnetic field lines to generate induced eddy currents that self-heat, thus performing non-contact induction heating on the surface centrifugal liquid film. Low-boiling-point components vaporize and are transported to the top, while high-boiling-point components move to the outer edge and fall to the bottom under centrifugal force, achieving continuous evaporation and separation.

[0006] Furthermore, the conical evaporator includes: The heating layer, the heat-conducting layer and the evaporation layer are stacked in sequence from bottom to top, wherein the heating layer is made of carbon steel and the surface of the evaporation layer is provided with a ceramic coating. The serrations are evenly distributed around the outer edge of the conical evaporation plate. A central connecting seat is provided at the center of the conical evaporator plate, and the central connecting seat is fixedly connected to the main drive shaft; A heat-insulating ceramic sleeve is installed between the central connecting seat and the main drive shaft to block heat transfer. And a conveying baffle disposed around the outside of the conical evaporation pan, used to block the ejected liquid and allow it to flow downward along the inner wall for conveying.

[0007] Furthermore, the electromagnetic heating mechanism also includes: A ring-shaped fixing frame is fixedly installed inside a closed evaporation cylinder. The electromagnet array is arranged on the ring-shaped fixing frame, and the electromagnet array is composed of multiple unit electromagnets evenly arranged around the ring-shaped fixing frame. Each unit electromagnet consists of an iron core and an excitation coil, and the excitation coil is connected to a DC adjustable power supply. A ceramic insulating sleeve covers the outside of the entire electromagnet array for electrical insulation and corrosion protection; A temperature sensor, mounted on a ring-shaped bracket, is used to monitor the operating temperature.

[0008] Furthermore, the feeding and distributing mechanism includes: The main conveying pipe has a conveying pump and a feed inlet connected sequentially to its outer end; Inclined conveying pipes are installed on the main conveying pipe, and their number corresponds to the conical evaporating plates. Each inclined conveying pipe extends obliquely into the top of the corresponding conical evaporating plate. Interlayer annular liquid distribution pipe is connected to the outer end of the inclined conveying pipe, and is uniformly wrapped around the circumference. Multiple liquid distribution openings are provided on the pipe wall. The centrifugal distributor, located below the interlayer annular liquid distribution pipe and fixedly connected to the main drive shaft, is used to receive the wastewater falling from the liquid distribution opening and to throw the wastewater onto the surface of the conical evaporation plate when rotating. The centrifugal fabric feeder includes: The liquid storage tray has an open top and is used to receive wastewater conveyed through the liquid distribution opening. A transfer storage tank is disposed inside the storage tray; A ring-shaped liquid distribution trough is set at the bottom of the liquid storage and swirling plate and distributed around it circumferentially.

[0009] Furthermore, it also includes an auxiliary cleaning mechanism, which comprises: The cleaning scraper is positioned above the conical evaporator, opposite the top surface of the conical evaporator, and with a gap between them. The synchronous connecting frame is connected to the outer end of the cleaning scraper on its inner side, and a sliding connecting sleeve is provided in the middle; A control connecting rod passes through and is slidably connected to the sliding connecting sleeve, and a buffer spring is connected between the control connecting rod and the sliding connecting sleeve. The unit guide sleeve has the control connecting rod slidably disposed inside it. The unit guide sleeve is fixedly connected to the closed evaporator cylinder. The unit guide sleeve is provided with a reset spring for resetting the control connecting rod.

[0010] Furthermore, the enclosed evaporator includes: The upper end cap is located at the top and the lower end cap is located at the bottom; Multiple unit evaporation cylinders are connected in series between the upper and lower end caps. Each unit evaporation cylinder constitutes an independent evaporation treatment section, which is equipped with a centrifugal evaporation unit, a feeding and distributing mechanism, an electromagnetic heating mechanism, and an auxiliary cleaning mechanism. The upper and lower connecting flanges located at the top and bottom of each unit evaporator, as well as the lower connecting flange located at the bottom of the upper head and the upper connecting flange located at the top of the lower head, are used to connect with adjacent unit evaporators. The positioning connecting block and positioning connecting groove are respectively set between the upper connecting flange and the lower connecting flange for quick centering and positioning; Correspondingly, closed fitting rings and closed fitting grooves are installed inside the upper and lower connecting flanges to form a sealing fit to keep the inside of the cylinder closed.

[0011] Furthermore, the main drive shaft is composed of multiple unit drive shafts connected end to end. Each unit drive shaft has a connecting bushing and a connecting shaft head at its top and bottom ends, respectively, for splicing connection between adjacent unit drive shafts. The unit drive shaft is rotatably connected to the corresponding unit evaporator cylinder through the support bearings nested on the outer side of its top and bottom ends. When multiple unit evaporators are connected in series, the beginning and end of the unit drive shaft in each unit evaporator are connected to each other through connecting bushings and connecting shaft heads to achieve synchronous rotation.

[0012] Furthermore, the main conveying pipe is composed of multiple unit conveying pipes connected in series, and each unit conveying pipe is provided with a conveying interface and a conveying connector at its top and bottom, respectively. When multiple unit evaporators are connected in series, the beginning and end of the unit conveying pipes in each unit evaporator are connected to each other through conveying interfaces and conveying joints to realize the conveying of wastewater.

[0013] Furthermore, a closed guide sleeve is provided at the top of the upper end cap, and a main push rod is slidably nested inside the closed guide sleeve. The bottom of the main push rod abuts against the top of the topmost control connecting rod. An adjusting cam is provided at the top of the main push rod, and an adjusting motor is connected to the shaft end of the adjusting cam. The adjusting motor drives the adjusting cam to rotate, thereby pushing the main push rod to move up and down. When multiple unit evaporators are connected in series, the control connecting rods inside each unit evaporator abut one after the other to achieve synchronous linkage.

[0014] Furthermore, a fixed support frame is provided on the outer side of the closed evaporator, and a lifting guide rail is provided on the fixed support frame; a lifting slide is provided on the outer side of the lower end cap, and the lifting slide is slidably connected to the lifting guide rail, and a lifting screw sleeve is provided in the middle of the lifting slide; the lower end cap is also connected to a lifting screw and a lifting motor, and the lifting motor drives the lifting screw to rotate, so as to move the lower end cap up and down along the lifting guide rail.

[0015] The beneficial effects of this invention are as follows: As can be seen from the above description, the capacitor electrolyte production wastewater resource treatment device provided by this invention adopts a closed evaporation cylinder with a built-in main drive shaft and multiple conical evaporation plates. The feeding and distributing mechanism uses a centrifugal distributor to evenly distribute the wastewater on the surface of the high-speed rotating conical evaporation plates. Centrifugal force causes it to spread into an extremely thin liquid film, significantly increasing the evaporation area and inhibiting coking. The electromagnetic heating mechanism sets up a DC electromagnet array below the evaporation plates to generate a constant magnetic field. The evaporation plates, made of magnetically conductive material, rotate and cut the magnetic field lines, generating eddy currents that self-heat, thus performing non-contact induction heating on the liquid film. Low-boiling-point water rapidly vaporizes and is discharged upwards, while high-boiling-point components such as ethylene glycol move to the outer edge under centrifugal force and are thrown off and collected, achieving continuous evaporation and separation. The device utilizes eddy current self-heating to avoid the problem of rotary sealing. The heating power can be independently adjusted, the heat transfer path is short and the response is fast. The gas-liquid reverse separation effectively prevents entrainment and improves resource recovery efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the closed evaporator cylinder according to an embodiment of the present invention; Figure 2 This is a front view of an embodiment of the present invention. Figure 3 This is a structural schematic diagram of the unit evaporator in the loading and unloading state according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the fixed support frame according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the upper end cap structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the lower end cap according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the top structure of the unit evaporator according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the unit evaporator according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the internal structure of the unit evaporator according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the centrifugal evaporation unit according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the bottom structure of the conical evaporator in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the conical evaporator disk according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the unit drive shaft according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the electromagnetic heating mechanism according to an embodiment of the present invention; Figure 15 This is a schematic diagram of the auxiliary cleaning mechanism according to an embodiment of the present invention; Figure 16 This is a schematic diagram of the main push rod according to an embodiment of the present invention.

[0018] The diagram is marked as follows: 1. Enclosed evaporator; 11. Fixed support frame; 111. Lifting guide rail; 112. Lifting screw; 113. Lifting motor; 12. Main drive shaft; 121. Gearbox; 122. Drive motor; 2. Upper end cap; 21. Steam output pipe; 22. Steam output interface; 3. Lower end cap; 31. Lifting slide; 32. Lifting screw sleeve; 33. Liquid output pipe; 34. Telescopic sleeve; 35. Liquid output interface; 4. Unit evaporator; 41. Upper connection method 411. Positioning connecting block; 412. Sealing interlocking ring; 42. Lower connecting flange; 421. Positioning connecting groove; 422. Sealing interlocking groove; 5. Centrifugal evaporation unit; 51. Conical evaporation plate; 511. Heating layer; 512. Heat-conducting layer; 513. Evaporation layer; 514. Plate edge serration; 52. Central connecting seat; 521. Heat-insulating ceramic sleeve; 522. Conveying baffle; 53. Unit drive shaft; 531. Connecting bushing; 532. Connecting shaft head; 533. Support bearing; 6. Feeding and distributing mechanism; 61. Main conveying pipe; 611. Feeding interface; 612. Conveying pump; 613. Unit conveying pipe; 614. Conveying interface; 615. Conveying joint; 62. Inclined conveying pipe; 621. Interlayer annular distributing pipe; 622. Distributing opening; 63. Centrifugal distributor; 631. Liquid storage tray; 632. Transfer storage tank; 633. Annular distributing tank; 7. Electromagnetic heating mechanism; 71. Electromagnetic array; 7 2. Ring-shaped fixing frame; 73. Unit electromagnet; 74. Iron core; 75. Excitation coil; 76. Ceramic isolation sleeve; 77. Temperature sensor; 8. Auxiliary cleaning mechanism; 81. Cleaning scraper; 811. Synchronous connecting frame; 812. Sliding connecting sleeve; 813. Buffer spring; 82. Control connecting rod; 821. Unit guide sleeve; 822. Return spring; 83. Closed guide sleeve; 831. Main push rod; 832. Adjusting cam; 833. Adjusting motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, a device for the resource-based treatment of capacitor electrolyte production wastewater includes a closed evaporation cylinder 1 and a main drive shaft 12 disposed at the center inside the closed evaporation cylinder 1, and further includes: Centrifugal evaporation unit 5 is disposed inside the closed evaporation cylinder 1. It includes a plurality of conical evaporation plates 51 spaced axially on the main drive shaft 12. The centrifugal evaporation unit 5 is used to spread wastewater into a film by generating centrifugal force through high-speed rotation. The feeding and distributing mechanism 6 is located on the outside of the conical evaporation plate 51. It includes a centrifugal distributor 63 surrounding the central area of ​​the conical evaporation plate 51. When the main drive shaft 12 drives the conical evaporation plate 51 to rotate, the wastewater is transported to the surface of the conical evaporation plate 51 through the centrifugal distributor 63, and the wastewater spreads towards the edge to form a thin liquid film. The electromagnetic heating mechanism 7 is located below the conical evaporation plate 51. It includes an array of electromagnets 71 that are uniformly arranged around the axis of the main drive shaft 12. The array of electromagnets 71 is connected to a DC adjustable power supply and generates a constant magnetic field. The conical evaporation disk 51 rotates in a constant magnetic field, cutting magnetic field lines to generate induced eddy currents that self-heat, and performs non-contact induction heating on the surface centrifugal liquid film. Low-boiling-point components vaporize and are transported to the top, while high-boiling-point components move to the outer edge and fall to the bottom under centrifugal force, thus achieving continuous evaporation and separation.

[0022] In this embodiment, the overall structure of the device includes a closed evaporation cylinder 1 that provides a sealed working environment, and a main drive shaft 12 that runs through the center of the closed evaporation cylinder 1. As the core execution module of this device, the closed evaporation cylinder 1 is equipped with a centrifugal evaporation unit 5. The centrifugal evaporation unit 5 includes several conical evaporation disks 51 that are fixedly arranged around the main drive shaft 12 in the longitudinal direction. The shaft end of the main drive shaft 12 is connected to a drive motor 122 through a gearbox 121. In the working state, the drive motor 122 drives the main drive shaft 12 to rotate, thereby driving all the conical evaporation disks 51 to rotate synchronously. By using centrifugal force, the capacitor electrolyte waste liquid dripping onto the disk surface is forced to overcome the viscosity resistance and spread continuously and rapidly from the center of the disk surface to the outer edge to form an extremely thin dynamic liquid film. Traditional evaporators or tubular evaporators, when treating capacitor electrolyte wastewater, are prone to localized dry burning and scaling on the heated surfaces due to the presence of highly viscous and easily coking components such as ethylene glycol in the wastewater. This invention uses a high-speed rotating conical evaporation plate 51 to force the wastewater into an extremely thin liquid film through centrifugation. This not only exponentially increases the specific surface area of ​​the wastewater for evaporation and significantly improves the heat transfer and evaporation rate, but the centrifugal shear force also keeps the liquid film in a highly turbulent and rapidly renewed state on the plate surface, reducing the retention and scaling rate of high-boiling-point concentrates on the heated surfaces, which is beneficial to improving the overall processing efficiency and reliability of the device. In terms of liquid film formation, the feeding and distributing mechanism 6 is reasonably arranged around and above the conical evaporation plate 51. The mechanism includes a centrifugal distributor 63 surrounding the central area of ​​the conical evaporation plate 51. As the main drive shaft 12 drives the conical evaporation plate 51 to rotate, the centrifugal distributor 63 first buffers the wastewater pumped in from the outside inside it. Then, through the initial centrifugal force generated by its own rotation, it evenly throws the wastewater out and distributes it evenly in the central area of ​​the top surface of the conical evaporation plate 51 below, and then evenly spreads it to the edge to form a film. In terms of the design of the heating source, the electromagnetic heating mechanism 7 is non-contactly set directly below each conical evaporation plate 51. This mechanism not only includes an array of electromagnets 71 that are evenly arranged around the axis of the main drive shaft 12, but also connects to a DC adjustable power supply. The DC power supply is used to construct a constant magnetic field with adjustable intensity in the space below the conical evaporation plate 51. The use of DC electromagnet array 71 in conjunction with the non-contact arrangement avoids the problem of having to set up a complex rotating dynamic seal on the rotating main shaft for traditional steam heating or heat transfer oil heating, and eliminates the safety hazard of medium leakage. By simply adjusting the magnitude of the DC current, the heating power of each evaporation plate section can be accurately and independently controlled without changing the mechanical speed, making it more flexible and convenient to use. Based on the combined working principles, during operation, the conical evaporation disk 51, made of magnetically conductive material, rotates at high speed with the main drive shaft 12 in the aforementioned constant magnetic field. Due to the continuous mechanical rotation of the disk body, the constant magnetic field lines generated by the electromagnet below are continuously interrupted, causing strong induced eddy currents to spontaneously generate inside the conical evaporation disk 51 and convert them into Joule heat. The heat generated by the disk body is instantly transferred to the surface, performing zero-distance non-contact induction heating on the thin liquid film formed by high-speed centrifugation. Under the dual action of heat and centrifugal force, low-boiling-point components such as water in the wastewater rapidly absorb the latent heat of vaporization and are converted into steam and transported to the exhaust port above. Meanwhile, high-viscosity, high-boiling-point components such as concentrated ethylene glycol are continuously pushed towards the outermost edge of the disk body under the continuous centrifugal force, and finally detach from the edge of the disk and fall into the collection tank below. Thus, liquid-gas separation and resource recovery are achieved in a continuous and uninterrupted dynamic process. Furthermore, since the eddy current self-heating occurs directly inside the evaporation pan, the heat transfer path is extremely short and the thermal response time is extremely fast, which basically eliminates the energy loss caused by thermal inertia. At the same time, the vaporized water vapor naturally rises and escapes, while the heavier and more viscous concentrated waste liquid is centrifugally thrown downwards. The two form a non-interfering reverse material flow, avoiding secondary mixing caused by gas-liquid entrainment. This process not only efficiently recovers high-purity condensate, but also purifies organic solvents such as ethylene glycol to an extremely concentrated state, realizing the resource utilization of capacitor electrolyte production wastewater.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, preferably, the conical evaporation plate 51 of the device is designed as a special longitudinal three-layer composite structure. The bottom layer is a carbon steel heating layer 511 with high magnetic permeability and mechanical strength, which serves as the substrate for induction heating. The middle layer is a heat-conducting layer 512 made of a high thermal conductivity metal such as copper or aluminum, which is closely attached to the heating layer 511. The top layer is an evaporation layer 513 that is in direct contact with wastewater. It is made of a corrosion-resistant alloy material, and a dense ceramic coating is prepared on the outermost surface of the evaporation layer 513 by plasma spraying or chemical vapor deposition. The bottom layer of carbon steel ensures a strong induced eddy current heating effect when rotating in a constant magnetic field. The middle layer of good conductor material, with its high thermal conductivity, can quickly and evenly spread the heat at the bottom, eliminating local hot spots that may be caused by uneven magnetic field distribution and ensuring the uniformity of heating of the wastewater on the plate. The top layer of alloy material, combined with a ceramic coating, provides the equipment with extremely strong chemical stability, effectively resisting the chemical corrosion of strong acids, strong alkalis or organic solvents in the electrolyte wastewater, extending the service life of the evaporation plate under harsh working conditions, and also avoiding metal ion contamination of the recovered products. On the outermost edge of the conical evaporator 51, several continuous serrations 514 are evenly arranged along the circumference. These serrations are integrally formed with the disc body, creating a wavy or pointed edge profile. When the wastewater film moves to the edge of the disc body under centrifugal force, it must pass through these serrated structures to detach from the disc body. For high-boiling-point residues with high viscosity in the electrolyte wastewater, such as concentrated ethylene glycol, if the edge is smooth, the liquid is prone to accumulate on the edge of the disc due to surface tension, forming large droplets or even causing backflow. The serrated structure can forcibly shear and break the continuous liquid film into small and uniform droplets, and throw them away with extremely high linear velocity, enhancing the gas-liquid separation effect and effectively preventing the concentrated liquid from coking and accumulating on the edge of the disc. The conical evaporator 51 is fixedly connected to the main drive shaft 12 through the central connecting seat 52 set at its center. A high-strength heat-insulating ceramic sleeve 521 is additionally nested between the contact surfaces of the central connecting seat 52 and the main drive shaft 12. The sleeve completely covers the radial contact surface of the drive shaft at the connection, physically isolating the heated plate from the rotating main shaft in the heat conduction path, locking most of the heat in the evaporator area. This not only protects the mechanical precision and bearing life of the drive system, but also reduces ineffective heat loss and improves the overall energy utilization efficiency of the system. Around each conical evaporator 51, a static conveying baffle 522 is also arranged. The conveying baffle 522 is arranged in a ring shape on the outside of the evaporator, and its inner diameter is slightly larger than the maximum outer diameter of the evaporator. The interception surface of the baffle is opposite to the liquid throwing trajectory of the evaporator. It is used to receive the liquid components splashed out from the serrations 514 on the edge of the plate and guide them to flow downward along the inner wall of the baffle under the action of gravity. This prevents the liquid from splashing and spraying randomly in the closed evaporator 1, which would cause contamination of the pure vaporized steam above. It has a certain gap with the inner wall of the evaporator to form a hollow heat-insulating jacket, which reduces energy consumption and improves the heat preservation effect. Through the interception and guidance of the baffle, the high boiling point components can be gathered into a stable liquid flow and slide down the inner wall in an orderly manner to the bottom collection area, realizing the spatial separation of gaseous products and liquid products.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, preferably, the electromagnetic heating mechanism 7 of the device is provided with an annular fixing frame 72 fixedly installed on the inner wall of the closed evaporation cylinder 1. The fixing frame is equipped with an electromagnet array 71 composed of multiple unit electromagnets 73 evenly distributed around the circumference. In order to adapt to the geometric features of the centrifugal evaporation unit 5, these unit electromagnets 73 are not arranged vertically, but are inclined as a whole towards the central axis, so that the magnetic end face of its magnetic pole is strictly parallel and equidistant from the bottom surface of the conical evaporation plate 51 with an inverted conical structure above. This ensures that during the high-speed rotation of the conical evaporation plate 51, the air gap distance between each radial position of its bottom surface and the magnetic pole of the lower electromagnet is consistent, and the induction intensity of the entire plate is uniform, so that the eddy current heat generated inside the plate is evenly distributed in space, avoiding the coking of wastewater caused by local hot spots. Each unit electromagnet 73 consists of an iron core 74 made of high-performance magnetic material and an excitation coil 75 wound around it. The excitation coils 75 of all unit electromagnets 73 are electrically connected to a set of DC adjustable power supply. When working, the DC adjustable power supply delivers a stable DC current to the coil, so that the electromagnet array 71 constructs a static magnetic field with constant polarity below the conical evaporation plate 51. The entire electromagnet array 71 is completely covered by a dense ceramic isolation sleeve 76. This isolation sleeve is made of high-temperature and corrosion-resistant industrial ceramic material. Through the encapsulation process, the iron core 74, excitation coil 75 and related wiring are completely sealed inside it, which physically isolates it from the gas phase and liquid phase environment inside the evaporation cylinder. It provides reliable electrical insulation in the high-temperature and high-humidity evaporation environment, prevents leakage accidents, and ensures that the iron core 74 and coil will not be corroded or oxidized, extending the service life of the heating core components, ensuring the stability of the equipment under harsh working conditions, and forming a closed internal environment for connecting pipelines to transport circulating medium to cool the coil and iron core 74. A temperature sensor 77 is installed at an appropriate position on the ring-shaped mounting bracket 72 to monitor the working temperature of the electromagnetic heating area in real time. The temperature sensor 77 is a non-contact sensor, such as an infrared thermometer. The sensor is connected to the control system of the DC adjustable power supply to form a closed-loop control circuit. The operator or the external control system can dynamically adjust the magnitude of the excitation current through the DC adjustable power supply based on the real-time feedback signal of the temperature sensor 77, thereby changing the magnetic field strength and adjusting the heating power of the evaporator in real time.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, preferably, the feeding and distributing mechanism 6 of the device is provided with a longitudinally distributed main conveying pipe 61. The outer end of the main conveying pipe 61 is connected to the feeding interface 611 and the conveying pump 612 in sequence, serving as the main artery for feeding the entire device. On the main conveying pipe 61, according to the number and position of the conical evaporating plates 51 inside the closed evaporating cylinder 1, multiple inclined conveying pipes 62 are correspondingly branched. After being led out from the main conveying pipe 61, each inclined conveying pipe 62 extends inward and downward, precisely reaching directly above the central area of ​​each corresponding conical evaporating plate 51, realizing a parallel processing mode of single-point feeding and multi-layer synchronous liquid supply. At the extended end of each inclined conveying pipe 62, an interlayer annular liquid distribution pipe 621 is connected, which is uniformly arranged around the circumference of the main drive shaft 12. The liquid distribution pipe is suspended above the conical evaporation plate 51. On the pipe wall at the bottom of the interlayer annular liquid distribution pipe 621, multiple downward liquid distribution openings 622 are equally spaced along the circumference. Wastewater in the pipe flows out downward in a multi-point dripping manner through these openings. Directly below the interlayer annular liquid distribution pipe 621, a centrifugal distributor 63 rigidly fixed to the main drive shaft 12 is installed. The main frame of the centrifugal distributor 63 is a liquid storage and slinging plate 631 with an open top, whose opening is just right to receive the wastewater falling from the liquid distribution opening 622 above. A transfer liquid storage tank 632 is set in the internal cavity of the liquid storage and slinging plate 631; at the same time, an annular liquid distribution groove 633 for drainage is opened around the bottom periphery of the liquid storage and slinging plate 631. During operation, the centrifugal distributor 63 rotates synchronously at high speed with the main drive shaft 12, with the open-top liquid storage and slinging plate... The plate 631 can collect the scattered droplets that converge. The internal intermediate liquid storage tank 632 has a buffer and flow stabilization function, which can eliminate the water flow pulse transmitted by the transfer pump 612. When the wastewater fills the intermediate liquid storage tank 632, under the strong centrifugal force, the wastewater is finally forced to be evenly squeezed and thrown out from the bottom annular liquid distribution tank 633, integrating the originally discontinuous dripping liquid into a continuous umbrella-shaped liquid curtain, which smoothly and extremely evenly covers the surface of the cone-shaped evaporation plate 51 below, avoiding local dry burning of the evaporation plate or excessive liquid layer, which is conducive to improving the evaporation heat transfer efficiency.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16 As shown, preferably, during continuous operation of the device, the surface of the conical evaporator 51 is in long-term contact with wastewater, which may cause coking due to the precipitation of high-boiling-point components or salts. To solve this problem, the device is also equipped with an auxiliary cleaning mechanism 8. This mechanism includes a cleaning scraper 81 set above each conical evaporator 51. The cleaning scraper 81 is opposite to the top surface of the conical evaporator 51 and maintains a certain gap. It does not contact the surface of the plate during normal operation. The outer end of the cleaning scraper 81 is connected to a synchronous connecting frame 811. The middle part of the synchronous connecting frame 811 is provided with a sliding connecting sleeve 812. A control connecting rod 82 passes through the sliding connecting sleeve 812 and slides with it. A buffer spring 813 is connected between the control connecting rod 82 and the sliding connecting sleeve 812. The control connecting rod 82 itself is slidably set in a unit guide sleeve 821. The unit guide sleeve 821 is fixedly connected to the closed evaporator cylinder 1. The unit guide sleeve 821 is also provided with a reset spring 822 for pushing the control connecting rod 82 to reset upward. When the device needs to remove coking material from the surface of the conical evaporator 51, the operator or control system drives the control connecting rod 82 to slide downwards. When the control connecting rod 82 is pressed down, the pressure is transmitted to the sliding connecting sleeve 812 through the buffer spring 813, which in turn drives the synchronous connecting frame 811 and the cleaning scraper 81 to move downwards together, so that the front end of the cleaning scraper 81 contacts the surface of the conical evaporator 51. As the conical evaporator 51 continues to rotate, the cleaning scraper 81 moves relative to the plate surface, scraping off the coking material attached to the plate surface. The scraped residue is thrown to the outer edge by centrifugal force and falls into the bottom collection area. After cleaning is completed, the downward pressure on the control connecting rod 82 is released, and the reset spring 822 pushes the control connecting rod 82 to slide upwards to reset. At the same time, the buffer spring 813 drives the sliding connecting sleeve 812, the synchronous connecting frame 811, and the cleaning scraper 81 to lift upwards, so that the cleaning scraper 81 restores the safe gap between itself and the plate surface, avoiding wear caused by long-term contact. The introduction of auxiliary cleaning mechanism 8 effectively solves the coking problem that may occur in the conical evaporator 51 during long-term operation. The cleaning scraper 81 maintains a non-contact gap with the plate surface during normal operation, which does not affect the evaporation film formation process. It is only pushed to contact the plate surface by the control connecting rod 82 when cleaning is required, so as to remove coking material online without stopping the machine to disassemble the equipment. The setting of buffer spring 813 can avoid rigid contact from causing scratches or damage to the plate surface, while ensuring that the pressure between the scraper and the plate surface is moderate, which can effectively remove coking without damaging the plate surface coating. The reset spring 822 ensures that the scraper automatically resets after cleaning to prevent accidental contact. The entire mechanism has a compact structure and is compatible with the modular design of the unit evaporator 4. It can extend the continuous operation cycle of the device, reduce the maintenance frequency and labor costs, and improve production efficiency and equipment reliability.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, preferably, the closed evaporator 1 of the device adopts a modular design, consisting of an upper end cap 2, a lower end cap 3, and multiple unit evaporator cylinders 4 connected in series between them. Each unit evaporator cylinder 4 constitutes an independent evaporation processing section, and each unit is equipped with a centrifugal evaporation unit 5, a feeding and distributing mechanism 6, an electromagnetic heating mechanism 7, and an auxiliary cleaning mechanism 8. Each unit evaporator cylinder 4 has an upper connecting flange 41 at the top and a lower connecting flange 42 at the bottom. The lower connecting flange 42 is located at the bottom of the upper end cap 2, and the upper connecting flange 42 is located at the top of the lower end cap 3. The flange 41 is quickly aligned and positioned between adjacent flanges via a positioning connecting block 411 and a positioning connecting groove 421. A sealing fit is formed between the sealing fitting ring 412 and the sealing fitting groove 422 to maintain good sealing inside the cylinder. A steam output pipe 21 is connected to the side of the upper end cap 2 for outputting the separated gas. The steam output pipe 21 is connected to the post-processing equipment via a steam output interface 22 at its outer end. A liquid output pipe 33 is located at the center of the bottom of the lower end cap 3 for outputting the separated liquid. A fixed support frame 11 is provided on the outer side of the sealed evaporator cylinder 1. The upper end cap 2 is equipped with a lifting guide rail 111, and the outer side of the lower end cap 3 is provided with a lifting slide 31. The lifting slide 31 slides in cooperation with the lifting guide rail 111. A lifting screw sleeve 32 is provided in the middle of the lifting slide 31. The lower end cap 3 is also connected to a lifting screw 112 and a lifting motor 113. The lifting motor 113 drives the lifting screw 112 to rotate, thereby driving the lower end cap 3 to move up and down along the lifting guide rail 111. During normal operation, the upper end cap 2, each unit evaporator 4 and the lower end cap 3 are connected and fastened by flanges. The sealing fitting ring 412 and the sealing fitting groove 422 are tightly fitted to ensure a seal. When necessary... When inspecting or maintaining a certain unit evaporator 4, start the lifting motor 113, and the lifting screw 112 drives the lower end cap 3 to move downward, so that the lower end cap 3 is disengaged from the lowest unit evaporator 4. Then, each unit evaporator 4 can be disassembled upward in sequence to remove the internal components for cleaning or maintenance. The liquid output pipe 33 is nested and slidably sealed with a telescopic sleeve 34. The bottom end of the telescopic sleeve 34 is connected to a liquid output interface 35 and is fixedly connected to the fixed support frame 11 so that the liquid discharge pipe below can be kept closed when the lower end cap 3 moves up and down. The modular structure of multiple unit evaporators 4 connected in series allows for flexible adjustment of the number of units to meet actual demand, facilitating industrial scale-up and standardized production. The positioning connecting blocks 411 and positioning connecting grooves 421 between the flanges enable quick centering and installation. The closed fitting rings 412 and closed fitting grooves 422 ensure reliable sealing of the cylinder body, preventing the leakage of harmful vapors. The lifting structure of the lower end cap 3 driven by the lifting guide rails 111, lifting screws 112, and lifting motors 113 makes the disassembly and assembly of the unit evaporators 4 extremely convenient. No overall hoisting equipment is required; the unit cylinders can be disassembled layer by layer simply by lowering the lower end cap 3, reducing maintenance difficulty and downtime. This structure also allows for online replacement or maintenance of individual unit evaporators 4 without completely disassembling the entire machine, improving the maintainability and operational economy of the equipment.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16As shown, preferably, the device is assembled in a modular combination. The main drive shaft 12 adopts a segmented structure, consisting of multiple unit drive shafts 53 connected end to end. Each unit drive shaft 53 has a connecting bushing 531 and a connecting shaft head 532 at its top and bottom ends, respectively. Adjacent unit drive shafts 53 are connected by inserting the bushing and shaft head. Each unit drive shaft 53 is also rotatably connected to the corresponding unit evaporator 4 through the support bearings 533 nested on the outer sides of its two ends. The conical evaporator plate 51 of the corresponding unit is connected to the corresponding unit drive shaft 53 through the central connecting seat 52. When multiple unit evaporators 4 are assembled in series, the unit drive shafts 53 in each unit evaporator 4 are inserted end to end to form a complete main drive shaft 12. All conical evaporators 51 rotate together. At the same time, the main conveying pipe 61 for conveying wastewater also adopts a segmented structure, consisting of multiple unit conveying pipes 6 The unit is composed of 13 units connected in series. Each unit conveying pipe 613 has a conveying interface 614 and a conveying connector 615 at the top and bottom. When the unit evaporating cylinders 4 are connected in series, the unit conveying pipes 613 are connected to each other through the splicing of the interface and connector to form a continuous conveying channel. In addition, the linkage drive part of the auxiliary cleaning mechanism 8 also adopts a segmented docking design. The top of the upper end cap 2 is provided with a closed guide sleeve 83. The main top rod 831 is nested and slides in the guide sleeve. The bottom of the main top rod 831 abuts against the top of the control connecting rod 82 in the topmost unit evaporating cylinder 4. The top of the main top rod 831 is provided with an adjusting cam 832. The shaft end of the adjusting cam 832 is connected to the adjusting motor 833. The adjusting motor 833 drives the cam to rotate to push the main top rod 831 to move up and down. When multiple unit evaporating cylinders 4 are connected in series, the control connecting rods 82 in each cylinder abut against each other in sequence, thereby realizing the synchronous linkage of all cleaning scrapers 81. The main drive shaft 12, main delivery pipe 61, and control connecting rod 82 all adopt a segmented splicing structure, which matches the modular design of the unit evaporator 4. This allows each unit evaporator 4 to be manufactured and installed independently. During on-site assembly, no complex alignment is required. The connection of transmission, liquid supply, and linkage control can be completed simply by plugging in. This not only simplifies the assembly process and reduces manufacturing and transportation costs, but also facilitates the disassembly, replacement, and maintenance of individual units. There is no need to set up a separate drive source for each unit, which further simplifies the overall structure and improves the integration and reliability of the equipment.

[0029] The capacitor electrolyte production wastewater resource recovery device provided by this invention adopts a closed evaporation cylinder 1, with a built-in main drive shaft 12 and multiple conical evaporation plates 51. The feeding and distributing mechanism 6 uses a centrifugal distributor 63 to evenly distribute the wastewater on the surface of the high-speed rotating conical evaporation plates 51. Centrifugal force causes it to spread into an extremely thin liquid film, greatly increasing the evaporation area and inhibiting coking. The electromagnetic heating mechanism 7 sets up a DC electromagnet array 71 below the evaporation plate to generate a constant magnetic field. The evaporation plate, made of magnetic material, rotates and cuts the magnetic field lines, generating eddy currents and self-heating inside, which performs non-contact induction heating on the liquid film. Low-boiling-point water vaporizes rapidly and is discharged upwards, while high-boiling-point components such as ethylene glycol move to the outer edge under centrifugal force and are thrown off and collected, realizing continuous evaporation and separation. The device uses eddy current self-heating to avoid the problem of rotational sealing. The heating power can be independently adjusted, the heat transfer path is short and the response is fast. The gas-liquid reverse separation effectively prevents entrainment and improves resource recovery efficiency.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A capacitor electrolyte production wastewater resource treatment device, comprising a closed evaporation cylinder (1) and a main drive shaft (12) arranged at the center inside the closed evaporation cylinder (1), characterized in that, Also includes: Centrifugal evaporation unit (5) is set inside the closed evaporation cylinder (1), which includes a plurality of conical evaporation plates (51) spaced axially on the main drive shaft (12). The centrifugal evaporation unit (5) is used to spread wastewater into a film by generating centrifugal force through high-speed rotation. The feeding and distributing mechanism (6) is located on the upper side of the conical evaporation plate (51). It includes a centrifugal distributor (63) surrounding the central area of ​​the conical evaporation plate (51). When the main drive shaft (12) drives the conical evaporation plate (51) to rotate, the wastewater is transported to the surface of the conical evaporation plate (51) through the centrifugal distributor (63), and the wastewater spreads towards the edge to form a thin liquid film. An electromagnetic heating mechanism (7) is located below the conical evaporation plate (51), which includes an array of electromagnets (71) arranged uniformly around the axis of the main drive shaft (12). The array of electromagnets (71) is connected to a DC adjustable power supply and generates a constant magnetic field. The conical evaporation disk (51) rotates in a constant magnetic field, cutting magnetic field lines to generate induced eddy currents and self-heating, which in turn heats the surface centrifugal liquid film in a non-contact induction manner. Low-boiling-point components vaporize and are transported to the top, while high-boiling-point components move to the outer edge under centrifugal force and fall to the bottom, thus achieving continuous evaporation and separation.

2. The capacitor electrolyte production wastewater resource treatment device according to claim 1, characterized in that, The conical evaporator (51) includes: The heating layer (511), the heat-conducting layer (512), and the evaporation layer (513) are stacked sequentially from bottom to top, wherein the heating layer (511) is made of carbon steel and the surface of the evaporation layer (513) is provided with a ceramic coating. The serrations (514) are evenly arranged along the circumference on the outer edge of the conical evaporation plate (51); A central connecting seat (52) is provided at the center of the conical evaporator (51), and the central connecting seat (52) is fixedly connected to the main drive shaft (12); A heat-insulating ceramic sleeve (521) is disposed between the central connecting seat (52) and the main drive shaft (12) to block heat transfer; And a conveying baffle (522) surrounding the outside of the conical evaporation pan (51) to block the ejected liquid and allow it to flow downward along the inner wall.

3. The capacitor electrolyte production wastewater resource treatment device according to claim 2, characterized in that, The electromagnetic heating mechanism (7) also includes: A ring-shaped fixing frame (72) is fixedly installed inside the closed evaporation cylinder (1). The electromagnet array (71) is set on the ring-shaped fixing frame (72). The electromagnet array (71) is composed of multiple unit electromagnets (73) uniformly arranged around the ring-shaped fixing frame (72). Each unit electromagnet (73) consists of an iron core (74) and an excitation coil (75), and the excitation coil (75) is connected to a DC adjustable power supply. A ceramic insulating sleeve (76) covers the outside of the entire electromagnet array (71) for electrical insulation and corrosion protection; A temperature sensor (77) is mounted on a ring-shaped bracket (72) for monitoring the operating temperature.

4. The capacitor electrolyte production wastewater resource treatment device according to claim 3, characterized in that, The feeding and distributing mechanism (6) includes: The main conveying pipe (61) has a conveying pump (612) and a feed inlet (611) connected in sequence at its outer end; Inclined conveying pipes (62) are installed on the main conveying pipe (61), and their number corresponds to the conical evaporating plate (51). Each inclined conveying pipe (62) extends obliquely into the top of the corresponding conical evaporating plate (51). Interlayer annular liquid distribution pipe (621) is connected to the outer end of inclined conveying pipe (62) and is uniformly wrapped around the circumference. Multiple liquid distribution openings (622) are provided on the pipe wall. Centrifugal distributor (63) is located below the interlayer annular liquid distribution pipe (621) and is fixedly connected to the main drive shaft (12). It is used to receive the wastewater falling from the liquid distribution opening (622) and to throw the wastewater onto the surface of the conical evaporation plate (51) when rotating. The centrifugal distributor (63) includes: A liquid storage tray (631) with an open top is used to receive wastewater transported through the liquid distribution opening (622); A transfer storage tank (632) is disposed inside the storage pan (631); An annular liquid distribution trough (633) is disposed at the bottom of the liquid storage and slinging plate (631) and distributed around it circumferentially.

5. The capacitor electrolyte production wastewater resource treatment device according to claim 4, characterized in that, It also includes an auxiliary cleaning mechanism (8), which includes: A cleaning scraper (81) is positioned above the conical evaporator (51), facing the top surface of the conical evaporator (51) and maintaining a gap. The synchronous connecting frame (811) is connected to the outer end of the cleaning scraper (81) on its inner side, and a sliding connecting sleeve (812) is provided in the middle. A control connecting rod (82) passes through and is slidably connected to the sliding connecting sleeve (812), and a buffer spring (813) is connected between the control connecting rod (82) and the sliding connecting sleeve (812); Unit guide sleeve (821), the control connecting rod (82) is slidably disposed in the unit guide sleeve (821), the unit guide sleeve (821) is fixedly connected to the closed evaporator (1), and the unit guide sleeve (821) is provided with a reset spring (822) for resetting the control connecting rod (82).

6. The capacitor electrolyte production wastewater resource treatment device according to claim 5, characterized in that, The enclosed evaporator (1) includes: The upper end cap (2) is set at the top and the lower end cap (3) is set at the bottom; Multiple unit evaporation cylinders (4) are connected in series between the upper head (2) and the lower head (3). Each unit evaporation cylinder (4) constitutes an independent evaporation treatment section, and its interior is equipped with a centrifugal evaporation unit (5), a feeding and distributing mechanism (6), an electromagnetic heating mechanism (7), and an auxiliary cleaning mechanism (8). The upper connecting flange (41) and lower connecting flange (42) set at the top and bottom of each unit evaporator (4), and the lower connecting flange (42) set at the bottom of the upper head (2) and the upper connecting flange (41) set at the top of the lower head (3) are used to dock with the adjacent unit evaporator (4). The positioning connecting block (411) and positioning connecting groove (421) are respectively set on the upper connecting flange (41) and the lower connecting flange (42) for quick centering and positioning; The corresponding sealing fitting ring (412) and sealing fitting groove (422) are set in the upper connecting flange (41) and the lower connecting flange (42) to form a sealing fit to keep the inside of the cylinder closed.

7. The capacitor electrolyte production wastewater resource treatment device according to claim 6, characterized in that, The main drive shaft (12) is composed of multiple unit drive shafts (53) connected end to end. Each unit drive shaft (53) has a connecting bushing (531) and a connecting shaft head (532) respectively at its top and bottom ends for splicing connection between adjacent unit drive shafts (53). The unit drive shaft (53) is rotatably connected to the corresponding unit evaporator (4) through the support bearings (533) nested on the outer side of its top and bottom ends. When multiple unit evaporators (4) are connected in series, the unit drive shafts (53) in each unit evaporator (4) are connected to each other through connecting bushings (531) and connecting shaft heads (532) to achieve synchronous rotation.

8. The capacitor electrolyte production wastewater resource treatment device according to claim 6, characterized in that, The main conveying pipe (61) is composed of multiple unit conveying pipes (613) connected in series. Each unit conveying pipe (613) is provided with a conveying interface (614) and a conveying connector (615) at its top and bottom, respectively. When multiple unit evaporators (4) are connected in series, the unit conveying pipes (613) in each unit evaporator (4) are connected to each other through the conveying interface (614) and the conveying joint (615) to realize the conveying of wastewater.

9. The capacitor electrolyte production wastewater resource treatment device according to claim 6, characterized in that, The top of the upper end cap (2) is provided with a closed guide sleeve (83), and a main top rod (831) is nested and slidably provided inside the closed guide sleeve (83). The bottom of the main top rod (831) abuts against the top of the topmost control connecting rod (82). The top of the main push rod (831) is provided with an adjusting cam (832), and the shaft end of the adjusting cam (832) is connected to an adjusting motor (833). The adjusting motor (833) drives the adjusting cam (832) to rotate, so as to push the main push rod (831) to move up and down. When multiple unit evaporators (4) are connected in series, the control connecting rods (82) inside each unit evaporator (4) abut one to the other to achieve synchronous linkage.

10. The wastewater resource utilization device for capacitor electrolyte production according to claim 6, characterized in that, A fixed support frame (11) is provided on the outside of the closed evaporator (1), and a lifting guide rail (111) is provided on the fixed support frame (11); a lifting slide (31) is provided on the outside of the lower end cap (3), and the lifting slide (31) is slidably connected to the lifting guide rail (111), and a lifting screw sleeve (32) is provided in the middle of the lifting slide (31); the lower end cap (3) is also connected to a lifting screw (112) and a lifting motor (113), and the lifting motor (113) drives the lifting screw (112) to rotate, so as to drive the lower end cap (3) to move up and down along the lifting guide rail (111).

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