Solid waste treatment device and method based on multi-needle cooperative discharge

Abstract

The invention discloses a solid waste treatment device and method based on multi-needle cooperative discharge, and belongs to the technical field of crushing, the solid waste treatment device comprises a multi-needle array electrode, a grounding electrode, a high-voltage pulse power supply, a regulation and control module and a reaction chamber; the multi-needle array electrode comprises a plurality of needle electrodes which are symmetrically distributed, the multi-needle array electrode is fixed in the reaction chamber and is connected with the high-voltage pulse power supply and the regulation and control module through the high-voltage transmission line, and the grounding electrode is arranged below the multi-needle array electrode; the solid waste is placed in the reaction chamber filled with water, the solid waste is subjected to discharge treatment through the high-voltage pulse power supply and the regulation and control module, and crushed solid waste particles are obtained. By arranging the detachable multi-needle array and the pulse power supply module, accurate adjustment of a discharge area and voltage is achieved, different solid waste treatment requirements are met, meanwhile, the structure is simple, the cost and maintainability are excellent, no other pollutants are discharged in the treatment process, and the environment-friendly requirement is met.

Description

Technical Field

[0001] This application relates to the field of crushing technology, and more specifically, to a solid waste treatment device and method based on multi-needle synergistic discharge. Background Technology

[0002] Solid waste management has become a prominent challenge in ecological and environmental construction. The difficulty in treating solid waste and the challenges of environmentally friendly disposal further exacerbate the pressure on management. On the one hand, solid waste comes from a wide range of sources and has a mixed composition, including non-degradable plastics and rubber, as well as industrial hazardous waste containing heavy metals and toxic organic compounds. The characteristics of different types of solid waste vary greatly, posing a challenge to unified disposal. On the other hand, traditional disposal technologies have obvious limitations—landfilling easily leads to leachate seeping into the soil and groundwater, causing long-term pollution; incineration can reduce volume, but may release toxic gases such as dioxins, and fly ash disposal still poses environmental risks; even if some advanced technologies can reduce pollution, high equipment investment and operating costs make it difficult to popularize in small and medium-sized scenarios. Against this backdrop, there is an urgent need to develop new green and environmentally friendly recycling technologies to solve the dilemma of "difficult treatment, heavy pollution, and low utilization rate" of solid waste through precise sorting, efficient conversion, and low-consumption emission reduction.

[0003] Existing technical document 1 (CN202010466427.6) discloses a material crushing device based on high-voltage pulse discharge in water. This device uses multiple needle electrodes connected to a pulse power supply. The needles of the high-voltage electrodes are arranged in parallel with equal spacing and on the same straight line. The distance between the needle tip and the screen ground electrode decreases sequentially by 2cm-9cm. However, this method has a fixed number of electrodes, making precise control of the discharge parameters impossible; the voltage distribution is uneven, resulting in large fluctuations in the degradation efficiency of pollutants and insufficient stability; the needle tip curvature radius is too small, and since they are all on the same straight line, it is difficult to ensure electric field concentration, leading to low energy utilization.

[0004] In summary, existing discharge-based pollutant treatment technologies typically have the following shortcomings: ① The single-needle-plate electrode structure is prone to problems such as concentrated discharge and low energy utilization.

[0005] ② The lack of precise control over discharge parameters leads to uneven discharge intensity, large fluctuations in pollutant degradation efficiency, and insufficient environmental friendliness.

[0006] ③ The device has a complex structure, high maintenance costs, and poor adaptability.

[0007] Therefore, there is an urgent need to develop a water pollutant treatment technology that combines the advantages of controllable discharge, simple structure, and no secondary pollution, to meet the efficiency and economic requirements of actual solid waste treatment scenarios. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a solid waste treatment device and method based on multi-needle synergistic discharge by optimizing the electrode structure and discharge control logic.

[0009] The present invention adopts the following technical solution.

[0010] The first aspect of the present invention discloses a solid waste treatment device based on multi-needle synergistic discharge, comprising: a multi-needle array electrode, a grounding electrode, a high-voltage pulse power supply and control module, and a reaction chamber; The multi-needle array electrode includes multiple symmetrically distributed needle electrodes. The multi-needle array electrode is fixed inside the reaction chamber and connected to a high-voltage pulse power supply and control module through a high-voltage transmission line. The grounding electrode is located below the multi-needle array electrode, forming an "up-down" discharge pattern with the multi-needle array electrode. Solid waste is placed in a water-filled reaction chamber, and the solid waste is discharged through a high-voltage pulse power supply and a control module to obtain crushed solid waste particles.

[0011] Preferably, the multi-needle array electrode is fixed on the equalizing ring, the equalizing ring is connected to the high-pressure sleeve embedded in the reaction chamber, and the high-pressure transmission line passes through the axis of the high-pressure sleeve and is connected to the equalizing ring.

[0012] Preferably, the radius of curvature of the needle tip of the multi-needle array electrode is set to 1-5 mm, and the spacing between adjacent needle electrodes is set to 20-50 mm.

[0013] Preferably, the connection between the multi-needle array electrode and the equalizing ring is connected to the lifting adjustment assembly to adjust the depth of the multi-needle array electrode inserted into the reaction chamber.

[0014] Preferably, the grounding electrode adopts a mesh structure, and the aperture of the mesh structure is set to 1-3mm.

[0015] Preferably, the distance between the multi-needle array electrode and the grounding electrode is set to 5-15cm, and the depth of the multi-needle array electrode inserted into the water is 1 / 2-2 / 3 of the water level in the reaction chamber.

[0016] Preferably, the side wall of the reaction chamber is provided with an inlet and an outlet. The inlet is used to release water before solid waste treatment so that the water can fully contact the discharge area. The outlet is used to discharge the wastewater after the solid waste (8) is treated.

[0017] Preferably, the solid waste treatment device further includes a material chamber, which is located at the bottom of the reaction chamber and is used to store crushed solid waste particles.

[0018] Preferably, the solid waste particles fall into the material chamber through the mesh of the grounding electrode, and a drain outlet is provided at the bottom of the material chamber for cleaning the solid waste particles.

[0019] A second aspect of the present invention discloses a solid waste treatment method, based on the solid waste treatment device based on multi-needle synergistic discharge described in the first aspect, comprising the following steps: Step 1: Adjust the number and position of the needle electrodes in the multi-needle array electrode according to the type of solid waste to be treated, and preset the initial pulse parameters of the pulse power supply and control module. Step 2: Pour water into the reaction chamber and stop the water intake once the water level reaches the preset height. Step 3: Start the pulse power supply and control module. A uniform discharge is formed between the multi-needle array electrode and the ground electrode, generating a discharge channel. The channel expands outward to discharge and treat the solid waste. Step 4: Determine whether the particle size of the solid waste and the water quality after solid waste treatment meet the standards. If they meet the standards, proceed to Step 5; otherwise, return to Step 1 to readjust the parameters of the pulse power supply and control module and continue processing until the standards are met. Step 5: Discharge the qualified water and solid waste particles, clean and maintain the solid waste treatment device, turn off the power to the device, and complete the solid waste treatment.

[0020] Compared with the prior art, the beneficial effects of the present invention include at least the following: (1) Strong controllability of discharge and stable degradation efficiency: By setting up a "detachable multi-pin array + pulse power module", the discharge area and voltage can be precisely adjusted to adapt to different solid waste treatment needs.

[0021] (2) Simple structure, cost and maintainability: The core of the device has no complicated filtration and cooling modules; the needle electrode adopts a detachable design, so there is no need to replace the whole device when a single electrode is damaged, thus reducing maintenance costs; the volume of the reaction chamber can be flexibly adjusted (5-50L), which is suitable for laboratory pilot and industrial pilot scenarios.

[0022] (3) No secondary pollution such as dust, and outstanding environmental protection: the discharge occurs in water, and no chemical agents need to be added; the electrode wear residue is low (tungsten copper, stainless steel debris) and can be cleaned regularly through the sewage outlet, with no other pollutants discharged, which meets the environmental protection requirements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the multi-needle electrode of the present invention; Figure 3 This is a flowchart of the solid waste treatment method of the present invention; In the diagram: 1-High voltage pulse power supply and control module, 2-Water inlet, 3-Reaction chamber, 4-High voltage sleeve, 5-High voltage transmission line, 6-Equalizing ring, 7-Multi-needle array electrode, 8-Solid waste, 9-Water outlet, 10-Grounding electrode, 11-Material cavity, 12-Solid waste particles, 13-Sewage outlet. Detailed Implementation

[0024] 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 of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0025] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The inventors realized that in the field of discharge treatment of pollutants, the existing technology mainly focuses on the treatment of harmful substances in water. The existing technology is mainly single needle-plate electrode discharge treatment technology. However, the electrode configuration can largely determine the formation of discharge plasma and the efficiency of discharge energy utilization. When the distance between the electrode needle and the electrode plate is fixed, the multi-needle electrode structure has a lower corona initiation voltage, a higher spark breakdown voltage, and better discharge stability compared with the single needle.

[0030] However, during a single-pulse discharge, multiple needle electrodes do not discharge simultaneously. The maximum number of discharge needle electrodes increases with the increase of voltage and needle-to-needle spacing. In the same pulse discharge process, the needle electrodes located at the edge of the electrode array produce longer streamers and have a larger deflection angle from the needle electrode axis compared to the needle electrodes located inside the array. Therefore, the smaller the needle-to-needle spacing, the greater the mutual superposition interference of electric fields between the needle electrodes, and the lower the discharge energy efficiency.

[0031] Based on this, such as Figure 1-2 As shown, Embodiment 1 of the present invention provides a solid waste treatment device based on multi-needle synergistic discharge, including a multi-needle array electrode 7, a grounding electrode 10, a high-voltage pulse power supply and control module 1, and a reaction chamber 3. Each part has a simple structure and works synergistically, as detailed below: The multi-needle array electrode 7 adopts a detachable array structure and is preferably made of tungsten copper alloy, which has both conductivity and corrosion resistance. The multi-needle array electrode 7 is fixed on the equalizing ring 6 and connected to the high-voltage transmission line 5. The equalizing ring 6 is connected to the high-pressure sleeve 4 embedded in the reaction chamber 3, and the high-pressure transmission line 5 passes through the axis of the high-pressure sleeve 4 and is connected to the equalizing ring 6.

[0032] The radius of curvature of the needle tip of the multi-needle array electrode 7 is set to 1-5mm to ensure the concentration of strong electric field. The number of needle electrodes in the multi-needle array electrode 7 can be adjusted according to the volume of the reaction chamber. The number of needle electrodes is proportional to the volume of the reaction chamber 3, preferably 2-10. The needle electrodes are symmetrically distributed, and the spacing between adjacent needle electrodes is set to 20-50mm to avoid discharge interference while ensuring uniform discharge.

[0033] In a preferred but non-limiting embodiment of the present invention, the end of the multi-needle array electrode 7, i.e. the part connected to the equalizing ring 6, can be connected to a lifting adjustment component. For example, the lead screw is connected to the equalizing ring 6, and the motor is driven by the controller to drive the lead screw, so that the equalizing ring 6 rises or falls. That is, the depth (5-20cm) of the needle electrode 7 inserted into the reaction chamber 3 can be adjusted manually or electrically to adapt to the solid waste treatment needs of different water levels.

[0034] The grounding electrode 10 adopts a mesh structure and is preferably made of 316L stainless steel. It is horizontally fixed at the bottom of the reaction chamber 3 and forms an "up-down" discharge pattern with the multi-needle array electrode 7. Preferably, the mesh size of the grounding electrode 10 is set to 1-3mm, which can form a uniform grounding electric field and ensure that the crushed products are leaked out in time.

[0035] More preferably, the distance between the multi-needle array electrode 7 and the grounding electrode 10 is set to 5-15cm (adapted to the volume of the reaction chamber), and the depth of the multi-needle array electrode 7 inserted into the water is 1 / 2-2 / 3 of the water level.

[0036] The high-voltage pulse power supply and control module 1 have a pulse power supply output voltage range of 50-100kV, a pulse width on the order of microseconds, and a duty cycle of 1%-30%. It can automatically adjust the voltage and frequency parameters of the pulse power supply according to the collected data and transmit them to the multi-needle array electrode 7 through the high-voltage transmission line 5.

[0037] The reaction chamber 3 is preferably made of high-strength nylon material with a volume of 5-50L. Solid waste 8 is placed inside the reaction chamber 3. The side wall of the reaction chamber 3 is provided with an inlet 2 and an outlet 9 to form a "left in, right out" water flow pattern, ensuring that the water body is in full contact with the discharge area.

[0038] The material chamber 11 is located at the bottom of the reaction chamber 3 and is used to temporarily store the crushed solid waste particles 12. The solid waste particles 12 fall into the material chamber 11 through the mesh of the grounding electrode 10. A drain outlet 13 is reserved at the bottom of the material chamber 11 to facilitate the periodic cleaning of a small amount of electrode wear residue, i.e., solid waste particles 12 (without other pollutants).

[0039] like Figure 3As shown, Embodiment 2 of the present invention provides a solid waste treatment method, based on the solid waste treatment device based on multi-needle synergistic discharge described in Embodiment 1, comprising the following steps: Step 1, device pretreatment: According to the type of solid waste to be treated, adjust the number and position of needle electrodes 7 in the multi-needle array electrode, and preset the initial pulse parameters through the pulse power supply and the control module 1; In a preferred but non-limiting embodiment of the present invention, step 1 specifically includes: Step 1.1, Device Inspection: Inspect the core components of the discharge treatment device to confirm whether the multi-needle array electrode 7 is intact and free from corrosion and deformation, whether the connection with the pulse power supply and control module 1 is secure, whether the pulse power supply and control module 1 is in normal standby mode, whether the grounding electrode 10 is reliably grounded, and whether there are no residual impurities and good sealing inside the reaction chamber 3. Step 1.2, Device parameter adaptation and debugging: Set the discharge parameters according to the solid waste to be treated, adjust the pulse power supply voltage from 1 to 50-100kV and the duty cycle to 10%-20% to ensure efficient generation of the discharge channel; Adjust the number of needle electrodes in the multi-needle array electrode 7 according to the type of solid waste to be treated. For example, according to the experiments conducted by the inventors' team, 3-5 needle electrodes are used when treating photovoltaic modules, and 2-3 needle electrodes are used when treating construction waste. Adjust the position of the needle electrode 7 in the multi-needle array electrode. Set the distance between the multi-needle array electrode 7 and the ground electrode 10 to 5-15cm (adapted to the volume of the reaction chamber). Insert the multi-needle array electrode 7 into the water to a depth of 1 / 2-2 / 3 of the water level to avoid dead zones in the discharge area.

[0040] Step 2, Water introduction: Water is introduced into the reaction chamber 3 through the inlet 2 until the water level reaches the preset height; Specifically, the inlet 2 of the reaction chamber is opened, and water is introduced into the chamber 3 at a stable flow rate until the water level reaches a preset height, which is 5-10cm from the top of the chamber to prevent water from overflowing during discharge. Then, the inlet 2 is closed.

[0041] Step 3, multi-needle discharge dissociation: The pulse power supply and control module 1 are activated, and a uniform discharge is formed between the multi-needle array electrode 7 and the ground electrode 10, generating a bright discharge channel. The channel expands outward to discharge and treat the solid waste. Step 4: Determine whether the particle size of the solid waste and the water quality after solid waste treatment meet the standards. If they meet the standards, proceed to Step 5; otherwise, return to Step 1 to readjust the parameters of the pulse power supply and control module 1 and continue processing. In a preferred but non-limiting embodiment of the present invention, step 4 specifically includes: Step 4.1: Based on the particle size of the solid waste after treatment, control the pulse power supply and the control module 1 to automatically adjust the discharge parameters; Specifically, the discharge treatment process lasts for 8-24 hours. The discharge treatment time is adjusted according to the particle size of the solid waste product. Larger particle sizes require longer treatment times. For example, when treating photovoltaic modules, when the particle size of the recycled product decreases from 50mm to below 0.5mm, the control module reduces the voltage from 80kV to 50kV to avoid energy waste. When the particle size of the recycled product does not meet the requirements, the voltage is increased by 25kV each time, and the number of discharges is increased by 100.

[0042] Step 4.2: Check whether the water quality meets the standards. If it does, the water will be discharged through outlet 9. If it does not meet the standards, control the pulse power supply and the control module 1 to automatically adjust the discharge parameters. Specifically, when the particle size of the crushed product, i.e. the solid waste product, reaches the preset target and the effluent meets the corresponding discharge standards (such as industrial wastewater meeting GB 8978-1996), the treatment is deemed to be up to standard, the pulse power supply and control module 1 are turned off, the outlet 9 of the reaction chamber is opened, and the qualified water is discharged. If the standard is not met, return to step 1, readjust the discharge parameters based on the test results, such as increasing the voltage or extending the discharge time, and restart the dissociation process until the standard is met.

[0043] Step 5: Discharge the qualified water and solid waste particles, clean and maintain the solid waste treatment device, turn off the power to the device, and complete the solid waste treatment.

[0044] Specifically, the cleaning and maintenance of the device is as follows: after the water has been completely drained, open the drain port 13 of the reaction chamber, clean the small amount of electrode wear residue (such as metal shavings) remaining in the reaction chamber, rinse the reaction chamber 3, the surface of the multi-needle array electrode 7 and the pipeline with clean water, wipe dry and check the wear of the multi-needle array electrode 7. If a single needle electrode is damaged, replace the corresponding electrode; close all valves and power supply, and make equipment operation records to provide parameter reference for the next treatment.

[0045] Compared with the prior art, the beneficial effects of the present invention include at least the following: (1) Strong controllability of discharge and stable degradation efficiency: By setting up a "detachable multi-pin array + pulse power module", the discharge area and voltage can be precisely adjusted to adapt to different solid waste treatment needs.

[0046] (2) Simple structure, cost and maintainability: The core of the device has no complicated filtration and cooling modules; the needle electrode adopts a detachable design, so there is no need to replace the whole device when a single electrode is damaged, thus reducing maintenance costs; the volume of the reaction chamber can be flexibly adjusted (5-50L), which is suitable for laboratory pilot and industrial pilot scenarios.

[0047] (3) No secondary pollution such as dust, and outstanding environmental protection: the discharge occurs in water, and no chemical agents need to be added; the electrode wear residue is low (tungsten copper, stainless steel debris) and can be cleaned regularly through the sewage outlet, with no other pollutants discharged, which meets the environmental protection requirements.

[0048] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0049] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0050] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0051] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0052] 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 it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A solid waste treatment device based on multi-needle synergistic discharge, characterized in that: include: Multi-needle array electrode (7), ground electrode (10), high voltage pulse power supply and control module (1) and reaction chamber (3); The multi-needle array electrode (7) includes multiple symmetrically distributed needle electrodes. The multi-needle array electrode (7) is fixed inside the reaction chamber (3) and connected to the high-voltage pulse power supply and control module (1) through the high-voltage transmission line (5). The ground electrode (10) is located below the multi-needle array electrode (7) and forms an "up-down" discharge pattern with the multi-needle array electrode (7). Solid waste (8) is placed in a water-filled reaction chamber (3). The solid waste (8) is discharged through a high-voltage pulse power supply and a control module (1) to obtain crushed solid waste particles (12).

2. The solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The multi-needle array electrode (7) is fixed on the equalizing ring (6), the equalizing ring (6) is connected to the high-voltage sleeve (4) embedded in the reaction chamber (3), and the high-voltage transmission line (5) passes through the axis of the high-voltage sleeve (4) and is connected to the equalizing ring (6).

3. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The radius of curvature of the needle tip of the multi-needle array electrode (7) is set to 1-5 mm, and the spacing between adjacent needle electrodes is set to 20-50 mm.

4. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The connection between the multi-needle array electrode (7) and the equalizing ring (6) is connected to the lifting adjustment assembly to adjust the depth of the multi-needle array electrode (7) inserted into the reaction chamber (3).

5. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The grounding electrode (10) adopts a mesh structure, and the aperture of the mesh structure is set to 1-3mm.

6. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The distance between the multi-needle array electrode (7) and the ground electrode (10) is set to 5-15cm, and the depth of the multi-needle array electrode (7) inserted into the water is 1 / 2-2 / 3 of the water level in the reaction chamber (3).

7. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The reaction chamber (3) has an inlet (2) and an outlet (9) on its side wall. The inlet (2) is used to release water before solid waste treatment so that the water can fully contact the discharge area. The outlet (9) is used to discharge the wastewater after the solid waste (8) is treated.

8. A solid waste treatment device based on multi-needle synergistic discharge according to claim 1, characterized in that: The solid waste treatment device further includes a material chamber (11), which is located at the bottom of the reaction chamber (3) and is used to store crushed solid waste particles (12).

9. A solid waste treatment device based on multi-needle synergistic discharge according to claim 8, characterized in that: The solid waste particles (12) fall into the material chamber (11) through the mesh of the grounding electrode (10). A drain outlet (13) is provided at the bottom of the material chamber (11) for cleaning the solid waste particles (12).

10. A solid waste treatment method, based on the solid waste treatment device based on multi-needle synergistic discharge according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Adjust the number and position of the needle electrodes (7) in the multi-needle array electrode according to the type of solid waste to be treated, and preset the initial pulse parameters of the pulse power supply and control module (1); Step 2: Introduce water into the reaction chamber (3), and stop the water intake after the water level reaches the preset height; Step 3: Start the pulse power supply and control module (1). A uniform discharge is formed between the multi-needle array electrode (7) and the ground electrode (10), generating a discharge channel. The channel expands outward to discharge the solid waste. Step 4: Determine whether the particle size of the solid waste and the water quality after solid waste treatment meet the standards. If they meet the standards, proceed to step 5. Otherwise, return to step 1 to readjust the parameters of the pulse power supply and control module (1) and continue processing until the standards are met. Step 5: Discharge the qualified water and solid waste particles, clean and maintain the solid waste treatment device, turn off the power to the device, and complete the solid waste treatment.

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