A wind-solar-magnetic cooperative driving wastewater evaporation device

Abstract

The application provides a wastewater evaporation device driven by wind and light and magnetism, and relates to the technical field of wastewater evaporation, which comprises a water tank for containing wastewater to be treated; a conveying belt, at least part of which is located below the liquid level in the water tank and at least part of which is located above the liquid level; a magnetic light-heat conversion material, which is a light-heat conversion material with magnetism and hydrophilicity, and is laid on the surface of the conveying belt; a collecting device for collecting evaporation crystals on the surface of the magnetic light-heat conversion material; a blowing system for blowing air to the conveying belt; a magnetic field generator for generating a magnetic field through the magnetic light-heat conversion material; and a control system for controlling the operation of the conveying belt, the air blower and the magnetic field generator. The application has the effect of improving the evaporation rate of the light-heat evaporator.

Description

Technical Field

[0001] This application relates to the field of wastewater evaporation technology, and in particular to a wastewater evaporation device driven by wind, solar and magnetic synergy. Background Technology

[0002] High-salinity wastewater, due to its complex composition (including salts, oils, organic heavy metals, and even radioactive substances) and its ever-increasing production, poses a severe challenge to current industrial environmental protection efforts. Traditional biological methods are limited by the inhibitory effect of high-salinity environments on microorganisms, while physicochemical methods, although more efficient, are costly and have limited effectiveness. Resource utilization and recycling technologies for high-salinity wastewater are key to solving this problem and are crucial for promoting the harmonious coexistence of economic, environmental, and social benefits.

[0003] In related technologies, the solar thermal evaporator method is commonly used. This method utilizes solar energy as an energy source. By fixing a heat collection plate, solar energy is concentrated in a small area, which heats the water and causes it to evaporate rapidly. This effectively promotes the evaporation process of water and thus treats high-salt wastewater. This technology has advantages such as energy saving and low cost.

[0004] Regarding the aforementioned technologies, the light absorption capacity of the photothermal evaporator is not strong, resulting in low photothermal conversion efficiency. Furthermore, surface vapor is retained, and the high humidity environment is not conducive to evaporation, leading to a low evaporation rate. Summary of the Invention

[0005] To address the issue of low evaporation rates in solar thermal evaporators, this application provides a wastewater evaporation device driven by a combination of wind, solar, and magnetic forces.

[0006] The wastewater evaporation device driven by wind, solar and magnetic fields provided in this application adopts the following technical solution:

[0007] A wastewater evaporation device driven by wind, solar and magnetic synergy, comprising:

[0008] A water tank is used to hold wastewater that needs to be treated.

[0009] The conveyor belt is at least partially below the liquid surface in the water tank and at least partially above the liquid surface.

[0010] The magnetic photothermal conversion material, which is a photothermal conversion material with magnetic and hydrophilic properties, is laid on the surface of the conveyor belt;

[0011] A collection device for collecting the evaporation crystals on the surface of the magnetic photothermal conversion material;

[0012] A blowing system for supplying air to the conveyor belt;

[0013] A magnetic field generator is used to generate a magnetic field that passes through the magnetic photothermal conversion material; and

[0014] A control system is used to control the operation of the conveyor belt, fan, and magnetic field generator.

[0015] Furthermore, the magnetic photothermal conversion material includes a substrate and a photothermal coating. The substrate is a hydrophilic material, and the photothermal coating is a photothermal material mixed with magnetic particles. The substrate and the photothermal material are combined by a chemical cross-linking method.

[0016] Furthermore, the portion of the conveyor belt above the liquid surface is arranged in a wavy pattern from one side of the water tank to the other.

[0017] Furthermore, the magnetic field generator is mounted on the water tank and located in the middle of the portion of the conveyor belt above the liquid surface.

[0018] Furthermore, the control system includes a control module, a power module, and a drive component. The blowing system, the magnetic field generator, and the conveyor belt are all electrically connected to the control module. The power module is used to charge the control module, and the drive component is used to drive the conveyor belt to move.

[0019] Furthermore, the drive assembly includes a drive motor and a reduction gear set, the conveyor belt includes multiple conveyor rollers, the reduction gear set is disposed between the drive motor and any one of the conveyor rollers, and the drive motor drives the conveyor roller to rotate through the reduction gear set.

[0020] Furthermore, the blowing system includes a fan and an adjustment device, the adjustment device being used to adjust the fan speed and blowing angle.

[0021] Furthermore, it also includes a liquid level monitoring system for monitoring and controlling the liquid level in the tank, the liquid level monitoring system being electrically connected to the control module.

[0022] Furthermore, the liquid level monitoring system includes a water supply pipe, a water supply switch, and a liquid level sensor. The water supply pipe is connected to the water tank, the water supply switch is used to control the water supply pipe to drain water into the water tank, and the liquid level sensor is located inside the water tank and is used to sense the liquid level in the water tank. Both the water supply switch and the liquid level sensor are electrically connected to the control module.

[0023] Furthermore, the collecting device includes a scraper for scraping the crystalline particles on the conveyor belt and a collection hopper for collecting the crystalline particles on the scraper, the collection hopper being located at the end of the scraper away from the conveyor belt.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By setting up a conveyor belt, magnetic photothermal conversion material, blowing system and magnetic field generator, when treating wastewater, the conveyor belt drives the magnetic photothermal conversion material to circulate. After the magnetic photothermal conversion material absorbs wastewater in the water tank and moves to above the liquid surface, the magnetic photothermal conversion material generates heat under the action of the magnetic field generated by the magnetic field generator, thereby promoting water evaporation. With the help of sunlight, and the blowing system blowing away the evaporated water vapor, the ambient humidity above the liquid surface of the conveyor belt is reduced, thereby greatly increasing the water evaporation rate on the magnetic photothermal conversion material.

[0026] 2. By controlling the speed and blowing angle of the conveyor belt and fan, the magnetic field generator, and the liquid level monitoring system, the parameters such as water level, temperature, and evaporation rate of this device are monitored and controlled, thereby optimizing the wastewater treatment effect.

[0027] 3. By setting up scrapers and collecting hoppers to collect the crystallized particles generated during the wastewater evaporation process, the resource can be recycled, environmental pollution can be reduced, and the wastewater evaporation device can be operated sustainably, thereby improving the efficiency of wastewater treatment. Attached Figure Description

[0028] 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 2 This is a front view of an embodiment of this application.

[0031] Figure 3 It is along Figure 2 Schematic diagram of the cross-sectional structure along line AA.

[0032] Figure 4 This is a side view of an embodiment of this application.

[0033] Figure 5 (a) is a photograph of a blank compressed towel and its image under an electron microscope, and (b) is a photograph of a modified magnetic photothermal conversion material and its image under an electron microscope.

[0034] Figure 6 This is a schematic diagram showing the absorption performance of magnetic photothermal conversion materials for light of different wavelengths.

[0035] Figure 7This is a schematic diagram illustrating the effect of different photothermal conversion materials and devices on the evaporation rate.

[0036] Reference numerals: 1. Water tank; 2. Conveyor belt; 21. Conveyor roller; 3. Collection device; 31. Scraper; 32. Collection hopper; 4. Blowing system; 5. Magnetic field generator; 6. Control system; 61. Control module; 62. Power module; 63. Drive assembly; 631. Drive motor; 632. Reduction gear set; 7. Solar panel; 8. Liquid level monitoring system; 81. Water supply pipe; 82. Water supply switch; 83. Liquid level sensor; 9. Support frame. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] This application discloses a wastewater evaporation device driven by wind, solar, and magnetic traction. Please refer to... Figure 1-4 The wind-solar-magnetic synergistic wastewater evaporation device includes a water tank 1, a conveyor belt 2, a magnetic photothermal conversion material, a collection device 3, a blowing system 4, a magnetic field generator 5, a liquid level monitoring system 8, a control system 6, and a support frame 9. The water tank 1 is fixedly placed on the support frame 9. The conveyor belt 2 is supported and operated by multiple conveyor rollers 21, and is at least partially below the liquid surface of the water tank 1 and at least partially above the liquid surface of the water tank 1. In this embodiment, the portion of the conveyor belt 2 above the liquid surface needs to be a certain distance above the water tank 1 to facilitate the evaporation of water from the wastewater. The magnetic photothermal conversion material is a photothermal material with magnetic and hydrophilic properties, which is laid on the outer surface of the conveyor belt 2 to fully absorb light and facilitate the evaporation of water. The collection device 3 is located in the water tank 1. The system is located on tank 1 and on one side of conveyor belt 2, used to collect the evaporation crystals on the surface of the magnetic photothermal conversion material; the blowing system 4 is located on support frame 9 and above tank 1, used to blow air onto conveyor belt 2 to increase the diffusion speed of water vapor near conveyor belt 2; the magnetic field generator 5 is located on tank 1 and can generate a magnetic field that passes through the magnetic photothermal conversion material; the liquid level monitoring system is located on tank 1 and used to monitor the liquid level in tank 1, and can replenish water in tank 1 in a timely manner to control the water level in tank 1 to maintain it at a predetermined height; the control system 6 is located on support frame 9 and is electrically connected to the conveyor point, the blower and the magnetic field generator 5, so as to monitor and control the water level, temperature and evaporation rate of the wastewater evaporation device.

[0039] When treating wastewater, the wastewater is discharged into the tank 1. The liquid level monitoring system 8 controls the liquid level to always be near the predetermined value, so that a portion of the conveyor belt 2 is always below the liquid surface. The control system 6 controls the operation of the conveyor belt 2, causing the magnetic photothermal conversion material to circulate along the track of the conveyor belt 2. After the wastewater in the tank 1 is carried out of the liquid surface by the magnetic photothermal conversion material, sunlight causes the water in the wastewater to evaporate. The blowing system 4 blows air into the conveyor belt 2, thereby accelerating the diffusion speed of water vapor near the conveyor belt 2, reducing the humidity of the air near the conveyor belt 2, and effectively improving the evaporation rate of water on the magnetic photothermal conversion material. Furthermore, when the magnetic photothermal conversion material moves, the magnetic field generator 5 generates a magnetic field that passes through the magnetic photothermal conversion material, causing the magnetic particles inside the magnetic photothermal conversion material to cut the magnetic lines of force and generate eddy currents, causing the atoms to move irregularly, collide and rub against each other, thereby generating heat to raise the surface temperature of the photothermal material, thereby further improving the overall wastewater evaporation effect.

[0040] Specifically, the magnetic photothermal conversion material includes a substrate and a photothermal coating. The substrate is made of a hydrophilic material, which is a knitted fabric, woven fabric, or non-woven fabric made of one or more of natural fibers, regenerated cellulose fibers, and chemical fibers. The photothermal coating is made of a photothermal material mixed with magnetic particles. The photothermal material is one or more of metal nanoparticles, carbon nanomaterials, inorganic nanomaterials, organic photothermal materials, and semiconductor photothermal nanomaterials. The substrate and the photothermal material are combined by a chemical cross-linking method to form the magnetic photothermal conversion material. In this embodiment, the substrate is made of waste compressed towels, sponges, or cloth. The photothermal coating is made by adding a suspension of ferric oxide magnetic particles at a concentration of 1-10 mg / ml to a pyrrole solution with a concentration of 0.1-1 mol / L. The substrate is immersed in the mixed solution, and a ferric chloride solution with a concentration of 0.1-1 mol / L is added as an oxidant to promote the polymerization reaction of pyrrole on the substrate. By introducing magnetic nanoparticles during the polymerization process, a magnetic and black polypyrrole layer is formed. After the polymerization reaction is completed for 3-6 hours, impurities are removed by washing with deionized water, and the substrate is dried to form a magnetic photothermal conversion material. For a comparison of the substrate before and after modification, please refer to [reference needed]. Figure 5 .

[0041] Please refer to Figure 6 The absorption rates of the substrate for different wavelengths of light were compared before modification (white line segment in the figure) and after modification (black line segment in the figure). The light absorption rate of the modified light conversion material remained above 90%.

[0042] Please refer to Figure 7In the diagram, "white" and "black" correspond to the colors of the photothermal conversion material, respectively; "still" and "rotating" correspond to evaporation devices without and with conveyor belt 2, respectively; "dark" and "light" correspond to environments without and with sunlight, respectively; "wind" corresponds to the addition of a blowing system 4; and "magnetic" corresponds to adding magnetic particles to the photothermal conversion material and using a magnetic field generator 5. It is clearly shown in the diagram that the wastewater evaporation device using magnetic photothermal conversion material, magnetic field generator 5, and a rotating conveyor belt 2 exhibits a significantly higher evaporation rate.

[0043] Preferably, the portion of the conveyor belt 2 above the liquid surface is arranged in a wavy pattern from one side of the water tank 1 to the other, thereby increasing the area of ​​the magnetic photothermal conversion material exposed to sunlight within a limited range and further improving the evaporation efficiency of the wastewater. In this embodiment, the portion of the conveyor belt 2 below the liquid surface is horizontally arranged, and the portion above the liquid surface includes two vertical sections and four inclined sections between the two vertical sections. The multiple inclined sections form a W shape, and the angle and number of inclined sections can be increased or decreased according to actual needs and environmental conditions.

[0044] Preferably, in order to improve the effect of the magnetic field of the magnetic field generator 5 on the magnetic photothermal conversion material, the magnetic field generator 5 is set in the middle of the part of the conveyor belt 2 above the liquid surface. That is, a mounting plate is fixed on the top of the water tank 1, and the magnetic field generator 5 is fixed on the mounting plate, so that the magnetic field generator 5 is located in the middle of the wavy conveyor belt 2, thereby reducing the distance between the magnetic field generator 5 and the magnetic photothermal conversion material and improving the effect of the magnetic field.

[0045] Preferably, the control system 6 includes a control module 61, a power module 62, and a drive component 63. The blowing system 4, the magnetic field generator 5, and the conveyor belt 2 are all electrically connected to the control module 61. The power module 62 is electrically connected to and supplies power to the control module 61, the blowing system 4, the magnetic field generator 5, and the drive component 63. The drive component 63 is used to drive any one of the multiple conveyor rollers 21 to rotate, thereby driving the conveyor belt 2 to circulate. The control module 61 and the power supply module 62 are both existing conventional technologies and will not be elaborated on here. The drive component 63 includes a drive motor 631 and a reduction gear set 632. The drive motor 631 is a servo motor to facilitate speed control. The reduction gear set 632 includes a large gear and a small gear that mesh with each other. Both the large gear and the small gear are rotatably connected to the support frame 9. The output end of the drive motor 631 is coaxially and fixedly connected to the small gear. The rotation shaft of the conveyor roller 21 is coaxially and fixedly connected to the large gear. By setting the reduction gear, the accuracy of the drive motor 631 in controlling the conveyor roller 21 can be improved, thereby facilitating the control system 6 to control the speed of the conveyor belt 2 and thus control the evaporation rate.

[0046] Preferably, the blowing system 4 includes a fan and an adjustment device. The adjustment device is used to adjust the fan speed and blowing angle. In this embodiment, the blowing system 4 adopts a oscillating fan with multiple speed levels. The adjustment device is located inside the fan housing. The fan angle adjustment axis is parallel to the rotation axis of the conveyor roller 21. The fan is located on one side of the conveyor belt 2, so that when the fan swings, it can blow air onto the magnetic photothermal conversion material above the liquid surface, thereby increasing the blowing range of the fan and improving the effect of the blowing system 4 in promoting water evaporation.

[0047] Preferably, the power module 62 is also connected to at least one solar panel 7. The solar panel 7 is a high-efficiency, weather-resistant solar panel to provide a stable power supply to the system. In this embodiment, a monocrystalline silicon solar panel is used. By setting the solar panel 7 to supply power to the power module 62, solar energy is fully utilized, thereby achieving the effect of cost reduction and efficiency improvement. It should be noted that the power supply source of the power module 62 is not limited to the solar panel 7; other external power sources can also be connected.

[0048] Preferably, the liquid level monitoring system 8 includes a water supply pipe 81, a water supply switch 82, and a liquid level sensor. The water supply pipe 81 is connected to the inside of the water tank 1. The water supply switch 82 is an electric control valve. The liquid level sensor 83 is a float-type liquid level sensor 83, an ultrasonic liquid level sensor 83, a hydrostatic liquid level sensor 83, or a capacitive liquid level sensor 83. The liquid level sensor 83 monitors the liquid level in the water tank 1 in real time. When the liquid level is lower than the specified value, the control module 61 immediately controls the water supply switch 82 to open, so that the water supply pipe 81 replenishes water into the water tank 1 until the liquid level in the water tank 1 rises to the specified value.

[0049] Preferably, the collection device 3 includes a scraper 31 and a collection hopper 32. The scraper 31 is a U-shaped plate, mounted on the water tank 1 and located on one side of one of the vertical sections of the conveyor belt 2. One end of the scraper 31 abuts against the magnetic photothermal conversion material on the surface of the conveyor belt 2, and the other end is set towards the collection hopper 32. The scraper 31 is inclined downward from the end near the conveyor belt 2 to the end near the collection hopper 32. When the conveyor belt 2 is running, the crystalline particles on the magnetic photothermal conversion material are scraped onto the top surface of the scraper 31. The inclined scraper 31 causes the crystalline particles to fall into the collection hopper 32 under the action of gravity, thereby realizing the continuous collection of crystalline particles, realizing the recycling of resources, reducing environmental pollution, and enabling the boiling water evaporation device to operate sustainably, thereby further improving the efficiency of waste treatment.

[0050] This wastewater evaporation device can be customized and optimized according to different wastewater treatment needs. Whether it is treating high-salt wastewater, seawater desalination or industrial wastewater, it can achieve good treatment results and economic benefits.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wastewater evaporation device driven by wind, solar, and magnetic synergy, characterized in that, include: A water tank is used to hold wastewater that needs to be treated. The conveyor belt is at least partially below the liquid surface in the water tank and at least partially above the liquid surface. The magnetic photothermal conversion material, which is a photothermal conversion material with magnetic and hydrophilic properties, is laid on the surface of the conveyor belt; A collection device for collecting the evaporation crystals on the surface of the magnetic photothermal conversion material; A blowing system for supplying air to the conveyor belt; A magnetic field generator is used to generate a magnetic field that passes through the magnetic photothermal conversion material. as well as A control system is used to control the operation of the conveyor belt, fan, and magnetic field generator. The magnetic photothermal conversion material includes a substrate and a photothermal coating. The substrate is a hydrophilic material, and the photothermal coating is a photothermal material mixed with magnetic particles. The substrate and the photothermal material are combined by a chemical cross-linking method. The portion of the conveyor belt above the liquid surface is arranged in a wavy pattern from one side of the water tank to the other. The magnetic field generator is mounted on the water tank and is located in the middle of the portion of the conveyor belt above the liquid surface. The photothermal coating is made by adding a magnetic particle suspension to a pyrrole solution. The substrate is immersed in the suspension solution, and an oxidant is added to promote the polymerization reaction of pyrrole on the substrate. By introducing magnetic nanoparticles during the polymerization process, a magnetic and black polypyrrole layer is formed. After the polymerization reaction, the material is formed by washing and drying.

2. The wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 1, characterized in that, The control system includes a control module, a power module, and a drive component. The blowing system, magnetic field generator, and conveyor belt are all electrically connected to the control module. The power module is used to charge the control module, and the drive component is used to drive the conveyor belt to move.

3. The wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 2, characterized in that, The drive assembly includes a drive motor and a reduction gear set. The conveyor belt includes multiple conveyor rollers. The reduction gear set is located between the drive motor and any one of the conveyor rollers. The drive motor drives the conveyor roller to rotate through the reduction gear set.

4. The wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 3, characterized in that, The blowing system includes a fan and an adjustment device, which is used to adjust the fan speed and blowing angle.

5. A wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 4, characterized in that, It also includes a level monitoring system for monitoring and controlling the liquid level in the tank, the level monitoring system being electrically connected to the control module.

6. The wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 5, characterized in that, The liquid level monitoring system includes a water supply pipe, a water supply switch, and a liquid level sensor. The water supply pipe is connected to the water tank. The water supply switch is used to control the water supply pipe to drain water into the water tank. The liquid level sensor is located inside the water tank and is used to sense the liquid level in the water tank. Both the water supply switch and the liquid level sensor are electrically connected to the control module.

7. The wastewater evaporation device driven by wind, solar and magnetic synergy according to claim 1, characterized in that, The collecting device includes a scraper for scraping crystalline particles on the conveyor belt and a collection hopper for collecting crystalline particles on the scraper, the collection hopper being located at the end of the scraper away from the conveyor belt.

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