A quadrax slot radiating array microwave sewage treatment device

Abstract

This application discloses a four-coaxial slotted radiation array microwave wastewater processor, belonging to the field of wastewater treatment technology. Its key technical features include a microwave power divider feed module, a transition matching module, a radiation array module, and a protective sealing module. The microwave power divider feed module contains a waveguide structure and a radial power divider structure. The transition matching module has four independent rigid coaxial transmission channels. The radiation array module contains four coaxial radiation units. The protective sealing module isolates the slotted structure from the wastewater. Furthermore, the slotted structure and impedance matching structure have been optimized. The modules are detachably connected, and the coaxial transmission channels are available in various lengths. This application achieves the technical effect of effectively treating wastewater, realizing efficient microwave transmission and radiation through a reasonable structural design, and facilitating installation, maintenance, and component replacement, thus improving the practicality and reliability of the equipment.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to a quad coaxial slotted radiation array microwave wastewater processor. Background Technology

[0002] With the continuous development of my country's coal, steel, and other industries, the output of industrial wastewater has increased dramatically. Wastewater generated during industrial production is complex in composition, containing many pollutants, including persistent organic compounds. Traditional wastewater treatment methods are often ineffective in dealing with these recalcitrant pollutants. Microwave-assisted catalysis technology, as a highly efficient new technology for treating industrial wastewater containing recalcitrant pollutants, has emerged, bringing new hope and solutions for industrial wastewater treatment. It is of great significance for improving environmental quality and promoting sustainable industrial development.

[0003] In the field of industrial wastewater treatment, to treat industrial wastewater containing recalcitrant pollutants, traditional microwave-assisted catalytic reactors typically utilize microwave windows to feed high-power microwaves into the reactor. This method was effective in treating wastewater to some extent and was one of the more common treatment methods at the time. In addition, there are other treatment methods, but most of them also revolve around the feeding and utilization of microwaves, attempting to improve the microwave treatment effect on wastewater through different structures and methods.

[0004] However, traditional microwave-assisted catalytic reactors have several problems. The method of feeding high-power microwaves into the reactor through a microwave window suffers from a small effective microwave area, resulting in some wastewater not receiving sufficient microwave stimulation and failing to achieve the desired treatment effect. Simultaneously, the poor uniformity of the microwave field distribution leads to inconsistent microwave energy received by different areas of the wastewater, affecting overall treatment efficiency. Furthermore, low energy utilization efficiency results in energy waste and increased treatment costs. Summary of the Invention

[0005] In order to overcome the technical defects such as small effective microwave area, poor uniformity of microwave field distribution and low energy utilization efficiency, the present invention provides a four-coaxial slot radiation array microwave sewage processor.

[0006] The present invention provides a quad coaxial slotted radiation array microwave wastewater processor using the following technical solution: A quad-coaxial slotted radiation array microwave wastewater processor, comprising: A microwave power divider feed module includes a waveguide structure and a radial power divider structure. The radial power divider structure is provided with a waveguide feed interface and four coaxial output interfaces. The waveguide structure is connected to the waveguide feed interface. The four coaxial output interfaces are evenly arranged around the same circumference with the axis of the waveguide feed interface as the center. The transition matching module includes four independent rigid coaxial transmission channels, one end of each coaxial transmission channel being coaxially connected to the corresponding coaxial output interface. A radiation array module includes four coaxial radiation units corresponding one-to-one with the coaxial transmission channel. Each coaxial radiation unit includes an inner conductor, an outer conductor, and a slot structure disposed on the outer conductor. The inner conductor passes through the coaxial transmission channel and is coaxially connected to the coaxial output interface. The outer conductor is sleeved outside the inner conductor and is coaxially connected to the coaxial transmission channel. The slot structure includes multiple side slots formed on the outer conductor, and the multiple side slots are distributed in a circumferential array along the outer conductor. A protective sealing module is connected to the outer wall of the outer conductor to isolate the gap structure from external sewage.

[0007] By adopting the above technical solutions, the waveguide structure of the microwave power divider feed module is matched with the radial power divider structure, and the four coaxial output interfaces are evenly arranged around it, enabling high-power microwave input and uniform distribution from one to four. The four independent rigid coaxial transmission channels of the transition matching module are coaxially connected to the coaxial output interfaces, ensuring consistent transmission loss of the four microwave energy streams. The coaxial radiation units of the radiation array module correspond to the coaxial transmission channels, and the side gaps on the outer conductor are circumferentially arrayed, enabling uniform release of microwave energy to the wastewater medium. The protective sealing module isolates the gap structure from the external wastewater, preventing wastewater corrosion and internal liquid ingress, ensuring stable equipment operation, improving the uniformity and efficiency of microwave wastewater treatment, enhancing the equipment's environmental adaptability and service life, and improving energy utilization efficiency. In practical applications, the radiation array module is directly immersed in the industrial wastewater treatment tank, enabling efficient microwave catalytic treatment of wastewater. Furthermore, the connection method between the modules facilitates installation, debugging, maintenance, and component replacement, and can be flexibly adjusted according to the actual conditions of the wastewater treatment tank, adapting to the engineering and continuous application requirements of industrial scenarios.

[0008] Preferably, the slit structure further includes a plurality of bottom slits formed at the bottom of the outer conductor. The bottom slits are arc-shaped and are evenly distributed on the same circumference with the axis of the outer conductor as the center.

[0009] By adopting the above technical solutions, the uniformity of the overall microwave energy distribution can be further improved, avoiding the problem of local "hot spots" that are easy to form in traditional single-path radiators, preventing liquid boiling and pollutant coking and adhesion, and improving the uniformity and efficiency of microwave treatment of sewage.

[0010] Preferably, the side gap is I-shaped, including two horizontal slots extending circumferentially along the outer conductor and a vertical slot perpendicularly connecting the middle of the two horizontal slots; the long side dimension of each of the horizontal slots and the vertical slot is greater than 4 times its wide side dimension.

[0011] By adopting the above technical solutions, the I-shaped side gap design can ensure uniform radiation of microwave energy and achieve uniform power loss density distribution inside the sewage structure. The long side dimension of each of the horizontal and vertical grooves is more than 4 times its wide side dimension, which can better achieve uniform microwave energy distribution. Combined with the overall structure of the microwave power divider feed module, transition matching module, radiation array module and protective sealing module, the distribution of electromagnetic field in high-loss water medium can be optimized, solving the problem of local "hot spots" easily formed by traditional single-path radiators, avoiding liquid boiling and pollutant coking and adhesion, improving the uniformity and efficiency of sewage microwave treatment. At the same time, the protective sealing module can isolate the gap structure from the external sewage, prevent sewage corrosion and internal liquid ingress, and ensure stable operation of the equipment. Each module can be detached and connected for easy installation, debugging, maintenance and component replacement.

[0012] Preferably, the protective sealing module is a polytetrafluoroethylene sleeve, which completely covers the outer conductor and is sealed to the outer wall of the outer conductor.

[0013] By adopting the above technical solution, the polytetrafluoroethylene sleeve, as a protective sealing module, can achieve physical isolation between metal parts and sewage, prevent sewage corrosion, avoid sewage from entering the device, and at the same time have wave transparency characteristics.

[0014] Preferably, the thickness of the sleeve is 10 mm.

[0015] Preferably, a stepped impedance matching structure is provided between the waveguide structure and the radial power divider structure. The stepped impedance matching structure is disposed at the waveguide feed interface. One end of the stepped impedance matching structure is connected to the waveguide structure, and the other end is connected to the radial power divider structure. The distance between the center of the stepped impedance matching structure and the coaxial conversion interface of the waveguide structure along the microwave transmission direction is λ / 4, and the axial dimension of each step of the stepped impedance matching structure is less than 0.2λ, where λ is the operating wavelength.

[0016] By adopting the above technical solution, this design can ensure efficient transmission of microwave energy, minimize microwave energy reflection and transmission loss, improve the overall system energy utilization efficiency, suppress inter-port interference, ensure the consistency of four-way transmission, avoid field strength concentration effect, and meet the port's requirement for high power transmission, avoiding structural damage caused by dielectric heating due to high field strength.

[0017] Preferably, the coaxial output interface includes a stepped impedance transformation section, which includes a first step, a second step, and a third step; the axial length of the first step is less than 0.3λ, the axial length of the second step is less than 0.2λ, and the axial length of the third step is less than 0.1λ, where λ is the operating wavelength.

[0018] By adopting the above technical solution, the setting of the stepped impedance transformation section and the specific axial length design can be used to synchronously calibrate the four coaxial transmission branches, ensuring consistent microwave energy transmission loss, achieving efficient microwave energy transmission, avoiding field strength concentration effect, improving the stability of power division transmission, and thus improving the overall system's energy utilization efficiency.

[0019] Preferably, the microwave power divider feed module, the transition matching module, the radiation array module, and the protective sealing module are sequentially detachably connected.

[0020] By adopting the above technical solution, detachable connections between modules are achieved, which facilitates equipment installation, maintenance and component replacement, and adapts to the engineering and continuous application requirements of industrial scenarios.

[0021] Preferably, the coaxial transmission channel has a variety of different length specifications.

[0022] By adopting the above technical solution, the length of the coaxial transition matching module can be flexibly adjusted according to the depth of the sewage treatment tank and the treatment requirements, which facilitates the installation, maintenance and component replacement of the equipment and adapts to the engineering and continuous application requirements of industrial scenarios.

[0023] Preferably, a first positioning ring is fitted at the top end of the inner conductor and a second positioning ring is fitted at the bottom end. The first positioning ring is connected to the inner wall of the coaxial transmission channel, and the second positioning ring is connected to the inner wall of the outer conductor. Both the first positioning ring and the second positioning ring are made of polytetrafluoroethylene.

[0024] By adopting the above technical solution, the first positioning ring and the second positioning ring can position the inner conductor and ensure the stability of the inner conductor's position; the first positioning ring and the second positioning ring made of polytetrafluoroethylene have wave transmission and corrosion resistance properties, which not only do not affect microwave energy transmission, but also prevent sewage corrosion, thus helping to improve the stability and service life of the equipment.

[0025] In summary, the present invention has the following beneficial effects: 1. Waveguide-coaxial converter combined with stepped impedance matching efficiently converts energy, improves power divider transmission efficiency and stability, and increases the effective microwave operating area; 2. The one-to-four coaxial slot radiation array, combined with the I-shaped and bottom arc-shaped slots, optimizes the electromagnetic field distribution in sewage, avoids local "hot spots," and improves the uniformity of microwave radiation and sewage treatment efficiency. 3. The PTFE protective sealing module isolates metal parts from sewage, preventing corrosion and liquid ingress, extending equipment life. The modules are also detachable, facilitating installation, maintenance, and component replacement, thus enhancing environmental adaptability and practicality. 4. End-to-end impedance matching optimization reduces microwave energy reflection and transmission loss, improving system energy utilization efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a four-coaxial slotted radiation array microwave wastewater processor.

[0027] Figure 2 This is a front view of a quad coaxial slotted radiation array microwave wastewater processor.

[0028] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0029] Figure 4 yes Figure 2 A cross-sectional view along the BB direction.

[0030] Figure 5 This is an exploded schematic diagram of the protective sealing module and the coaxial radiation unit.

[0031] Explanation of reference numerals in the attached figures: 1. Microwave power divider feed module; 11. Waveguide structure; 12. Radial power divider structure; 121. Waveguide feed interface; 122. Coaxial output interface; 2. Transition matching module; 21. Coaxial transmission channel; 3. Radiation array module; 31. Coaxial radiation unit; 311. Inner conductor; 312. Outer conductor; 313. Slot structure; 3131. Side slot; 3132. Bottom slot; 4. Protective sealing module; 41. Sleeve; 5. Stepped impedance matching structure; 6. Stepped impedance transformation section; 7. First positioning ring; 8. Second positioning ring. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0033] This application mainly adopts a modular structure to achieve efficient microwave treatment of sewage, which increases the microwave action area, improves the uniformity of the microwave field and the energy utilization efficiency. The following is a further detailed description of this application.

[0034] A quad coaxial slotted radiation array microwave wastewater processor, referenced Figures 1 to 3The system comprises a microwave power divider feed module 1, a transition matching module 2, a radiation array module 3, and a protective sealing module 4. The four coaxial output interfaces 122 of the microwave power divider feed module 1 are coaxially connected to the four coaxial transmission channels 21 of the transition matching module 2, and the coaxial transmission channels 21 of the transition matching module 2 are coaxially connected to the coaxial radiation units 31 of the radiation array module 3. The protective sealing module 4 is connected to the outer wall of the outer conductor 312 of the radiation array module 3. This structure enables efficient transmission, even distribution, and uniform radiation of microwave energy into the wastewater, improving wastewater treatment efficiency and energy utilization efficiency. This is because the microwave power divider feed module 1 evenly distributes microwaves, the transition matching module 2 ensures consistent transmission loss across the four microwave energy paths, the radiation array module 3 achieves uniform microwave energy radiation, and the protective sealing module 4 protects the internal structure from wastewater corrosion.

[0035] Reference Figure 1 and Figure 3 The microwave power divider feed module 1, transition matching module 2, radiation array module 3, and protective sealing module 4 are sequentially connected in a detachable manner. The detachable connection method can be flange connection, etc., ensuring a secure connection.

[0036] This design makes the equipment more flexible in installation and use, facilitating installation, maintenance, and component replacement.

[0037] Reference Figure 1 The microwave power divider feed module 1 includes a waveguide structure 11 and a radial power divider structure 12. The waveguide structure 11 is generally made of a metal material, such as copper or aluminum, which has good conductivity and wave guiding performance. Its shape is usually rectangular or circular, which can effectively guide microwave transmission.

[0038] Reference Figure 3 and Figure 4 The radial power divider structure 12 is provided with a waveguide feed interface 121 and four coaxial output interfaces 122.

[0039] Waveguide structure 11 is connected to waveguide feed interface 121, which receives microwaves transmitted from waveguide structure 11. A stepped impedance matching structure 5 is provided between waveguide structure 11 and radial power divider structure 12. The stepped impedance matching structure 5 is located at waveguide feed interface 121, with one end electrically connected to waveguide structure 11 and the other end connected to radial power divider structure 12. The distance between the center of stepped impedance matching structure 5 and the coaxial conversion interface of waveguide structure 11 along the microwave transmission direction is λ / 4. The axial dimension of each step of stepped impedance matching structure 5 is less than 0.2λ, where λ is the operating wavelength.

[0040] When the waveguide structure 11 is connected to the waveguide feed interface 121, it can be sealed with a gasket or the like to prevent microwave leakage. With this structure, microwaves can smoothly enter the radial power divider structure 12 from the waveguide structure 11 and be evenly distributed to the four coaxial output interfaces 122.

[0041] Reference Figure 3 and Figure 4 Four coaxial output interfaces 122 are evenly arranged around the axis of the waveguide feed interface 121 on the same circumference. Each coaxial output interface 122 contains a stepped impedance transformation section 6, which includes a first step, a second step, and a third step. The axial length of the first step is less than 0.3λ, the axial length of the second step is less than 0.2λ, and the axial length of the third step is less than 0.1λ, where λ is the operating wavelength.

[0042] By setting up a stepped impedance matching structure 5 and a stepped impedance transformation segment 6, impedance matching can be further optimized, microwave energy reflection and transmission loss can be reduced, and energy utilization efficiency can be improved.

[0043] Reference Figure 1 and Figure 3 The transition matching module 2 includes four independent rigid coaxial transmission channels 21. Each coaxial transmission channel 21 is a metal tube filled with an insulating medium, such as air or polytetrafluoroethylene. One end of each coaxial transmission channel 21 is coaxially connected to the corresponding coaxial output interface 122. The connection method can be a threaded connection or a bayonet connection to ensure a tight connection and good coaxiality.

[0044] Through this connection, microwaves can be smoothly transmitted from the microwave power divider feed module 1 to the transition matching module 2. The function of the transition matching module 2 is to ensure consistent transmission loss of the four microwave energy streams. This can be achieved by rationally designing the size and structure of the coaxial transmission channel 21. For example, the diameter of the metal tube and the thickness of the insulating medium can affect the microwave transmission characteristics.

[0045] The coaxial transmission channel 21 has a variety of different length specifications, and the length of the coaxial transmission channel 21 can be flexibly adjusted according to the actual depth of the sewage treatment tank and the treatment requirements.

[0046] Reference Figure 1 and Figure 4The radiation array module 3 includes four coaxial radiation units 31, each corresponding to a coaxial transmission channel 21. Each coaxial radiation unit 31 includes an inner conductor 311, an outer conductor 312, and a slot structure 313. The inner conductor 311 passes through the coaxial transmission channel 21 and is coaxially connected to the coaxial output interface 122. The inner conductor 311 is generally made of metal, such as copper, and has good conductivity. The outer conductor 312 is sleeved on the outside of the inner conductor 311 and is coaxially connected to the coaxial transmission channel 21. The outer conductor 312 is also made of metal, such as aluminum.

[0047] Reference Figure 5 The slot structure 313 is formed on the outer conductor 312, including multiple side slots 3131 and multiple bottom slots 3132. The multiple side slots 3131 are formed on the sidewalls of the outer conductor 312 and are distributed in an array along the circumference of the outer conductor 312. The side slots 3131 can be elongated, I-shaped, or circular, etc., preferably I-shaped. The I-shaped side slot 3131 includes two horizontal slots extending along the circumference of the outer conductor 312 and a vertical slot vertically connecting the middle of the two horizontal slots. The long side dimension of each horizontal slot and vertical slot is more than 4 times its wide side dimension.

[0048] This I-shaped slot design allows microwave energy to radiate evenly, achieving a uniform distribution of power loss density within the sewage structure.

[0049] Reference Figure 5 The bottom gap 3132 is opened at the bottom of the outer conductor 312. The bottom gap 3132 can be elongated, triangular, circular, etc., preferably arc-shaped with an arc angle of 105°. Multiple bottom gaps 3132 are evenly distributed on the same circumference with the axis of the outer conductor 312 as the center. This design further improves the uniformity of the overall microwave energy distribution.

[0050] Reference Figure 3 A first positioning ring 7 is fitted onto the top end of the inner conductor 311, and the first positioning ring 7 is connected to the inner wall of the coaxial transmission channel 21. A second positioning ring 8 is fitted onto the bottom end of the inner conductor 311, and the second positioning ring 8 is connected to the inner wall of the outer conductor 312. Both the first positioning ring 7 and the second positioning ring 8 are made of polytetrafluoroethylene (PTFE). PTFE has low microwave loss and good insulation properties, which can effectively fix the inner conductor 311 and ensure the stability of the coaxial radiation unit 31.

[0051] Reference Figure 3 The protective sealing module 4 is a polytetrafluoroethylene sleeve 41. The sleeve 41 is a columnar structure with an open top and a sealed bottom. It completely covers the outer conductor 312 and is sealed to the outer wall of the outer conductor 312. The thickness of the sleeve 41 is 10mm.

[0052] Polytetrafluoroethylene (PTFE) has the characteristics of corrosion resistance and low microwave loss, and does not affect the coupling and transmission of microwave energy. It can isolate the slit structure 313 from external sewage, prevent sewage from corroding the outer conductor 312 and internal liquid ingress, and ensure stable operation of the equipment.

[0053] The implementation principle of this embodiment is as follows: The four-coaxial slotted radiation array microwave sewage processor of this embodiment, through modular structural design, achieves efficient transmission, equal distribution, and uniform radiation of microwave energy through the collaborative work of each module. The microwave power divider feed module 1 adopts a waveguide structure 11, a radial power divider structure 12, a stepped impedance matching structure 5, and a stepped impedance transformation section 6 to uniformly and efficiently distribute microwaves to the four coaxial output interfaces 122; the transition matching module 2 ensures that the transmission loss of the four microwave energy channels is consistent, and its length can be adjusted according to actual conditions; the radiation array module 3 uses an I-shaped side slot 3131 and an arc-shaped bottom slot 3132 to uniformly radiate microwave energy into the sewage; the protective sealing module 4 protects the internal structure from sewage corrosion. This design solves the problems of small effective microwave area, poor uniformity of microwave field distribution, and low energy utilization efficiency in traditional microwave reactors. It improves the catalytic treatment effect and energy utilization efficiency of wastewater, while also having good adaptability to wastewater environment, extending the service life of the equipment. Furthermore, the modules are detachably connected, which facilitates installation, commissioning, maintenance, and component replacement, making it suitable for the engineering and continuous application needs of industrial scenarios.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A microwave wastewater processor with a four-coaxial slotted radiation array, characterized in that, include: The microwave power divider feed module (1) includes a waveguide structure (11) and a radial power divider structure (12). The radial power divider structure (12) is provided with a waveguide feed interface (121) and four coaxial output interfaces (122). The waveguide structure (11) is connected to the waveguide feed interface (121). The four coaxial output interfaces (122) are evenly arranged around the same circumference with the axis of the waveguide feed interface (121) as the center. The transition matching module (2) includes four independent rigid coaxial transmission channels (21), one end of each coaxial transmission channel (21) being coaxially connected to the corresponding coaxial output interface (122); The radiation array module (3) includes four coaxial radiation units (31) corresponding one-to-one with the coaxial transmission channel (21). Each coaxial radiation unit (31) includes an inner conductor (311), an outer conductor (312), and a slot structure (313) disposed on the outer conductor (312). The inner conductor (311) passes through the coaxial transmission channel (21) and is coaxially connected to the coaxial output interface (122). The outer conductor (312) is sleeved on the outside of the inner conductor (311) and is coaxially connected to the coaxial transmission channel (21). The slot structure (313) includes a plurality of side slots (3131) opened on the outer conductor (312), and the plurality of side slots (3131) are distributed in a circumferential array along the outer conductor (312). The protective sealing module (4) is connected to the outer wall of the outer conductor (312) to isolate the slit structure (313) from external sewage.

2. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, The slit structure (313) also includes a plurality of bottom slits (3132) opened at the bottom of the outer conductor (312). The bottom slits (3132) are arc-shaped, and the plurality of bottom slits (3132) are evenly distributed on the same circumference with the axis of the outer conductor (312) as the center.

3. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1 or 2, characterized in that, The side gap (3131) is I-shaped, including two horizontal slots extending circumferentially along the outer conductor (312) and a vertical slot that vertically connects the middle of the two horizontal slots; the long side dimension of each of the horizontal slots and the vertical slot is greater than 4 times its wide side dimension.

4. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, The protective sealing module (4) is a polytetrafluoroethylene sleeve (41), which completely covers the outer conductor (312) and is sealed to the outer wall of the outer conductor (312).

5. The quad coaxial slotted radiation array microwave wastewater processor according to claim 4, characterized in that, The sleeve (41) has a thickness of 10 mm.

6. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, A stepped impedance matching structure (5) is provided between the waveguide structure (11) and the radial power divider structure (12). The stepped impedance matching structure (5) is located at the waveguide feed interface (121). One end of the stepped impedance matching structure (5) is connected to the waveguide structure (11), and the other end is connected to the radial power divider structure (12). The distance between the center of the stepped impedance matching structure (5) along the microwave transmission direction and the coaxial conversion interface of the waveguide structure (11) is λ / 4, and the axial dimension of each step of the stepped impedance matching structure (5) is less than 0.2λ, where λ is the operating wavelength.

7. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, The coaxial output interface (122) is provided with a stepped impedance transformation section (6), which includes a first step, a second step and a third step; the axial length of the first step is less than 0.3λ, the axial length of the second step is less than 0.2λ, and the axial length of the third step is less than 0.1λ, where λ is the operating wavelength.

8. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, The microwave power divider feed module (1), the transition matching module (2), the radiation array module (3), and the protective sealing module (4) are sequentially detachably connected.

9. The quad coaxial slotted radiation array microwave wastewater processor according to claim 8, characterized in that, The coaxial transmission channel (21) has a variety of different length specifications.

10. The quad coaxial slotted radiation array microwave wastewater processor according to claim 1, characterized in that, The inner conductor (311) is fitted with a first positioning ring (7) at its top end and a second positioning ring (8) at its bottom end. The first positioning ring (7) is connected to the inner wall of the coaxial transmission channel (21), and the second positioning ring (8) is connected to the inner wall of the outer conductor (312). Both the first positioning ring (7) and the second positioning ring (8) are made of polytetrafluoroethylene.

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