A multiphase AC plasma torch and solid waste treatment device

Abstract

The present invention discloses a multiphase AC plasma torch and a solid waste treatment device, comprising a main body, a multiphase electrode assembly, an air intake assembly, a cooling assembly and a power supply assembly, wherein the multiphase electrode assembly, the air intake assembly, the cooling assembly and the power supply assembly are respectively connected to the main body. The multiphase electrode assembly of the present invention is composed of multiple groups of motors, and the multiple groups of electrodes are distributed in a ring shape, thereby forming multiple arc channels intersecting with each other, thereby making the plasma area larger, increasing the high-temperature area, forming a larger high-temperature area, and achieving better working effects at a lower plasma temperature. The present invention arranges a cooling assembly to cool the plasma torch to ensure that the plasma torch is in a normal working environment.

Description

Technical Field

[0001] The invention belongs to the field of solid waste treatment and relates to a multiphase AC plasma torch and a solid waste treatment device. Background Art

[0002] Among many solid waste treatment technologies, thermal plasma technology is a technology with great development prospects for achieving harmless treatment and resource utilization of hazardous waste. The neutral particle temperature, electron temperature and ion temperature of thermal plasma actually used in solid waste treatment are almost at the same level. The core component of the thermal plasma system is the plasma torch. The difference in arc torch discharge will cause the generated plasma to have different properties. According to this classification method, thermal plasma can be divided into DC plasma (there are two structures: transferred arc and non-transferred arc), radio frequency plasma, AC plasma, and microwave plasma.

[0003] Most of the current commercial demonstration or operation of plasma treatment of solid waste projects basically use DC plasma torches, which have been successfully commercialized and used to treat municipal solid waste, waste biomass, medical waste, polychlorinated biphenyls, incineration fly ash, sludge, electronic waste and waste asbestos. However, the DC plasma torch requires an additional set of AC-DC conversion devices, and the overall thermal efficiency is also lower. At the same time, the temperature distribution in the furnace using a DC plasma torch is uneven. In order to eliminate the low-temperature dead corners in the furnace, a high-temperature rotating device is usually required. In order to make up for the defect of low local temperature, air needs to be added to increase the amount of exhaust gas and generate nitrogen oxides, which leads to the investment of the DC plasma system in exhaust gas being similar to that of conventional incineration technology. The electrode corrosion problem of the DC plasma torch is also one of the practical problems. Once one of the two electrodes reaches the end of its life, it needs to be shut down for replacement, so the replacement is more frequent, and the demand for inert gas is high, which greatly increases the operation and maintenance costs of the system. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a multiphase AC plasma torch and a solid waste treatment device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multiphase AC plasma torch, comprising a main body, a multiphase electrode assembly, an air intake assembly, a cooling assembly and a power supply assembly, and the multiphase electrode assembly, the air intake assembly, the cooling assembly and the power supply assembly are respectively connected to the main body.

[0006] Furthermore, the main body is provided with a connecting flange, the connecting flange is connected to the plasma furnace, and the multi-phase electrode assembly is arranged on the connecting flange.

[0007] Furthermore, the multi-phase electrode assembly is composed of multiple groups of electrodes.

[0008] Furthermore, the multiple groups of electrodes are distributed in a ring shape.

[0009] Furthermore, an insulator is fixed to the connecting flange, and the insulator is connected between the plasma furnace and the connecting flange.

[0010] Furthermore, the air intake assembly includes an air intake port and an air intake channel. The air intake channel is located inside the main body, and the air intake port is connected to the air intake channel.

[0011] Furthermore, the cooling component includes a circulating water inlet, a circulating water channel and a circulating water outlet. The circulating water channel is located inside the main body and is connected to the circulating water inlet and the circulating water outlet respectively. The circulating water flows along the circulating water inlet, the circulating water channel and the circulating water outlet in sequence.

[0012] Furthermore, the power supply assembly includes a cable outlet and a cable channel, the cable channel is provided with cables, the cables are respectively connected to the electrodes of the multiphase electrode assembly and the AC power supply, and the AC power supply is the power supply of the multiphase AC plasma torch.

[0013] Furthermore, the multiple groups of electrodes of the multi-phase electrode assembly serve alternately as cathodes and anodes.

[0014] A solid waste treatment device comprises the multiphase AC plasma torch.

[0015] In summary, the present invention is beneficial in that:

[0016] 1) The automatic feeder, crusher, temporary storage box, plasma gasification melting furnace, slag discharge pool, secondary combustion chamber, gas filtering device, dust collector and chimney of the present invention are connected in a split or integrated manner, which is more compact and smaller in size than the incineration system of the same scale, and effectively solves the problem of domestic waste disposal in fragmented communities, remote areas and emergencies. The synthetic gas is further processed by the plasma gasification melting furnace, secondary combustion chamber, gas filtering device and dust collector to ensure the cleanliness of the exhaust gas.

[0017] 2) The present invention is provided with a traction hook, which is used to connect with an external traction device. The traction device is connected to the carriage through the traction hook. The traction device drives the plasma gasification and melting system to move to achieve the movable effect of the present application, which is more flexible, convenient and efficient for the treatment of domestic waste in some remote areas such as communities, islands and rural areas.

[0018] 3) The present invention sets an AC power supply as the power supply of the multi-phase AC plasma torch, and the electrodes of the multi-phase electrode assembly alternately serve as the cathode and the anode, so that the corrosion between the electrodes is more even, which can effectively alleviate the corrosion of the high temperature environment in the furnace and the harmful ions on the anode end surface, thereby greatly extending the service life of the anode and the cathode, and extending the service life of the entire plasma torch; an AC high voltage is set between the cathode and the anode of the multi-phase electrode assembly through the AC power supply, and the plasma gas is introduced into the air intake assembly, so that a plasma jet is formed at the minimum spacing between the high-voltage electrodes, so that there is no need for an AC-DC conversion device, and the use of AC power reduces the current conversion equipment, and a simpler transformer can be used, thereby improving the reliability and scalability of the system; the voltage drop in the arc is increased without increasing the weight and cost; the AC arc movement is more intense, so that the convection transmission of the plasma is stronger, and the overall thermal efficiency is also higher.

[0019] 4) The multi-phase electrode assembly of the present invention is composed of multiple groups of motors, and the multiple groups of electrodes are distributed in a ring shape, thereby forming multiple arc channels that intersect with each other, thereby making the plasma area larger, increasing the high-temperature area, forming a larger high-temperature area, and at the same time achieving better working results at lower plasma temperatures.

[0020] 5) The present invention provides a cooling assembly to cool the plasma torch, thereby ensuring that the plasma torch is in a normal working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the mobile domestic waste plasma gasification and melting system of the present invention.

[0022] Figure 2 The automatic feeder of the present invention is shown in FIG. Figure 1 .

[0023] Figure 3 The automatic feeder of the present invention is shown in FIG. Figure 2 .

[0024] Figure 4 Schematic diagram of a multiphase AC plasma torch according to the second embodiment of the present invention Figure 1 .

[0025] Figure 5 Schematic diagram of a multiphase AC plasma torch according to the second embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0030] Embodiment 1:

[0031] like Figure 1-3 As shown, a solid waste treatment device includes a mobile carriage and a plasma gasification and melting device. The plasma gasification and melting device is arranged in the mobile carriage. The plasma gasification and melting device includes an automatic feeder 1, a crusher 2, a temporary storage box 3, a conveyor 4, a plasma gasification and melting furnace 5, a slag discharge pool 6, a secondary combustion chamber 7, a gas filter device 8, a dust collector 9 and a chimney 10.

[0032] The mobile carriage includes a carriage 11, a rotating wheel 13 and a traction hook 12. The carriage 11 is configured as a conventional carriage, the rotating wheel 13 is disposed at the bottom of the carriage 11, and the traction hooks 12 are disposed at both ends of the carriage 11. The traction hooks 12 are used to connect with an external traction device, and the traction device is connected to the carriage 11 through the traction hook 12. The traction device drives the plasma gasification and melting system to move to achieve the movable effect of the present application, which is more flexible, convenient and efficient for the treatment of domestic waste in remote areas such as some communities, islands and rural areas.

[0033] The automatic feeder 1 includes a body 1-1, a feeding device and an opening and closing device. The feeding device and the opening and closing device are respectively arranged on the body 1-1. The body 1-1 is provided with a machine cavity 1-10. The feeding device is arranged in the machine cavity 1-10. The feeding device includes a feeding motor 1-20, a feeding plate 1-24 and a plurality of feeding drive components. The feeding plate 1-24 is located above the feeding drive component. The feeding drive component drives the feeding plate 1-24 to move up and down. The feeding motor 1-20 is arranged on the body 1-1. The output shaft of the feeding motor 1-20 spans the machine cavity 1-10 and is rotatably connected with the body 1-1. The feeding device is arranged on the output shaft. The feeding motor 1-20 transmits the motion to the feeding device through the output shaft.

[0034] In this embodiment, the feed drive assembly is configured as an integrated assembly consisting of a plurality of feed assemblies, the feed assembly includes an eccentric wheel 1-21, a transmission rod 1-22 and a push block 1-23, the eccentric wheel 1-21 is arranged on the output shaft, the machine cavity 1-10 is further provided with a fixed plate 1-25, one end of the transmission rod 1-22 is movably connected to the eccentric wheel 1-21, the other end of the transmission rod 1-22 passes through the fixed plate 1-25 and is slidably connected to the fixed plate 1-25, and the push block 1-23 is arranged at At the other end of the transmission rod 1-22, the push block 1-23 contacts the feed plate 1-24. In this embodiment, the long sides and short sides of the eccentric wheels 1-21 of adjacent feed components correspond, that is, the long sides of one group of eccentric wheels 1-21 contact the transmission rod 1-22, and the short sides of adjacent eccentric wheels 1-21 contact the transmission rod 1-22. The feed motor 1-20 runs continuously, and several feed components intermittently push the feed plate 1-24 and cause the feed plate 1-24 to vibrate, which facilitates garbage transmission.

[0035] In this embodiment, the transmission rods 1-22 of several feeding assemblies have different lengths, such as Figure 2 As shown, the feeding end of the automatic feeder 1 is set as end A in the figure, and the discharging end of the automatic feeder 1 is set as end B in the figure, and the length of the transmission rod 1-22 gradually shortens from end A to end B, so that the feeding plate 1-24 is set inclined, which facilitates the transmission of garbage to the crusher 2 under the action of gravity and vibration.

[0036] The opening and closing device includes a first joint plate 1-31, a second joint plate 1-32 and an opening and closing mechanism. The first joint plate 1-31 and the second joint plate 1-32 are hinged. The first joint plate 1-31 and the body 1-1 are rotatably connected. The opening and closing mechanism connects the first joint plate 1-31, the second joint plate 1-32 and the body 1-1. The opening and closing mechanism starts to control the first joint plate 1-31 and the second joint plate 1-32 to fold and flip outward to achieve opening and closing. When garbage is fed, the opening and closing device opens, the garbage enters the automatic feeder 1 and falls on the feeding plate 1-24. After the feeding is completed, the opening and closing device is reset.

[0037] The automatic feeder 1 also includes a cleaning device, which automatically cleans the feed plate 1-24. The cleaning device includes a water spray head 1-40, a water pipe and a water tank 1-41. The water spray head 1-40 is arranged on the first plywood 1-31 and the second plywood 1-32. The water pipe connects the water spray head 1-40 and the water tank 1-41. The water tank 1-41 is detachably installed on the water pipe. When cleaning is required, the water tank 1-41 is connected to the water pipe, the water pump of the water tank 1-41 is started, and the water spray head 1-40 sprays water outward, thereby cleaning the feed plate 1-24.

[0038] A rotating motor 1-51 is fixedly installed at the bottom of the carriage 11, and the output shaft of the rotating motor 1-51 is fixedly connected to the automatic feeder 1. The carriage 11 is also fixedly installed with a guide rod 1-52. A slide groove is set at the bottom of the body 1-1, and the top of the guide rod 1-52 is set in the slide groove. The guide rod 1-52 is used to support the automatic feeder 1 on the one hand, and guide the rotation of the automatic feeder 1 on the other hand.

[0039] During the implementation of the automatic feeder 1 of this embodiment, the opening and closing mechanism of the opening and closing device is first started to control the first and second panels 1-31 and 1-32 to fold and flip outward to achieve opening and closing. The garbage enters the automatic feeder 1 and falls on the feed plate 1-24. The feed motor 1-20 is started, and a number of feed components intermittently push the feed plate 1-24 and vibrate the feed plate 1-24, so that the garbage is transmitted to the crusher 2. After the garbage feeding is completed, the opening and closing mechanism of the opening and closing device is closed, and the first panels 1-31 and 1-32 are turned outward to realize opening and closing. And the second clamping plate 1-32 is reset. At this time, if the automatic feeder 1 needs to be cleaned, the rotating motor 1-51 is started to make the automatic feeder 1 flip 180°, the water tank 1-41 is connected to the water pipe, the water pump of the water tank 1-41 is started, and the sprinkler head 1-40 sprays water to the feed plate 1-24, thereby cleaning the feed plate 1-24. The automatic feeder 1 is externally provided with a waste water tank, and the water falls into the waste water tank after cleaning along the feed plate 1-24. After cleaning, the rotating motor 1-51 is started to reset the automatic feeder 1.

[0040] The automatic feeder 1 is connected to the crusher 2. The automatic feeder 1 receives domestic garbage and automatically transfers the domestic garbage to the crusher 2 for garbage crushing. The crusher 2 is connected to the temporary storage box 3. The crushed garbage is transferred to the temporary storage box 3 for temporary storage. The conveyor 4 is located between the temporary storage box 3 and the plasma gasification melting furnace 5. The temporary storage box 3 is connected to the plasma gasification melting furnace 5 through the conveyor 4. The conveyor 4 is configured as a screw conveyor. The conveyor 4 transfers the crushed garbage temporarily stored in the temporary storage box 3 to the plasma gasification melting furnace 5. The plasma gasification melting furnace 5 is used for garbage melting. The plasma gasification melting furnace 5 includes a slag outlet 51 and a gas outlet 52. The plasma gasification melting furnace 5 is provided with a plasma torch 50. In this embodiment, the plasma torch 50 adopts a DC plasma torch and is provided with two plasma torches 50. The two plasma torches 50 are obliquely arranged in the plasma gasification melting furnace 5. The slag outlet 51 is located at the bottom of the plasma gasification melting furnace 5, and the gas outlet 52 is located at the top of the plasma gasification melting furnace 5. The plasma gasification melting furnace 5 is connected to the slag discharge pool 6 through the slag outlet 51. The plasma gasification melting furnace 5 is connected to the slag discharge pool 6 through the gas outlet 52. The secondary combustion chamber 7 is connected to the secondary combustion chamber 7. The synthetic gas is further processed by the secondary combustion chamber 7 to convert harmful gases into harmless gases. The secondary combustion chamber 7 is connected to the gas filtering device 8. The gas filtering device 8 of this embodiment is provided with a variety of absorbents, including absorbents for desulfurization, denitration and deacidification, so as to ensure the cleanliness of the gas. The gas filtering device 8 is connected to the dust collector 9. The dust collector 9 is provided with a dry dust filtering device, such as a bag dust collector. The gas filtered by the gas filtering device 8 is filtered by the dust collector 9 to filter the water vapor in the gas, so as not to generate waste water. The dust collector 9 is connected to the chimney 10. The treated clean gas is discharged into the atmosphere. In this embodiment, the automatic feeder 1, crusher 2, temporary storage box 3, plasma gasification melting furnace 5, slag discharge pool 6, secondary combustion chamber 7, gas filter device 8, dust collector 9 and chimney 10 are connected in a split or integrated manner. Compared with the incineration system of the same scale, it is more compact and smaller in size, and can effectively solve the problem of domestic waste disposal in fragmented communities, remote areas and emergencies. The synthetic gas is further treated by the plasma gasification melting furnace 5, secondary combustion chamber 7, gas filter device 8 and dust collector 9 to ensure the cleanliness of the exhaust gas.

[0041] Preferably, to facilitate feeding, the automatic feeder 1 can be extended to the outside of the carriage 11.

[0042] Preferably, a sorting device may be provided in the crusher 2, and the bag breaking and large object sorting functions may be realized by the sorting device.

[0043] Preferably, the secondary combustion chamber 7 is provided with a heat recovery device, which recovers heat and improves energy utilization.

[0044] Embodiment 2:

[0045] like Figure 4-5 As shown, the difference between this embodiment and the first embodiment is that in the first embodiment, the plasma gasification melting furnace 5 is provided with a DC plasma torch 50, while in this embodiment, the plasma gasification melting furnace 5 is provided with a multiphase AC plasma torch.

[0046] The multiphase AC plasma torch includes a main body 50-0, a multiphase electrode assembly 50-1, an air intake assembly, a cooling assembly and a power supply assembly, and the multiphase electrode assembly 50-1, the air intake assembly, the cooling assembly and the power supply assembly are respectively connected to the main body 50-0.

[0047] The main body 50 - 0 is provided with a connecting flange 50 - 2 , which is connected to the plasma furnace, thereby realizing the connection between the multi-phase AC plasma torch and the plasma furnace, and the multi-phase electrode assembly 50 - 1 is provided on the connecting flange 50 - 2 .

[0048] The multi-phase electrode assembly 50-1 is composed of multiple groups of electrodes. In this embodiment, the multi-phase electrode assembly 50-1 includes 12 electrodes. Figure 5 As shown, the 12 electrodes are arranged in a ring shape, and an angle of 30° is formed between adjacent electrodes. Multiple arc channels intersecting each other are formed between the electrodes of the multi-phase electrode assembly 50-1, thereby making the plasma area larger, increasing the high-temperature area, forming a larger high-temperature area, and achieving better working results at a lower plasma temperature.

[0049] The connecting flange 50-2 is fixed with an insulator 50-3, which is connected between the plasma furnace and the connecting flange 50-2, and not only plays an insulating role, but also plays a further supporting role for the multi-phase electrode assembly 50-1.

[0050] The air intake assembly includes an air intake port 50-4 and an air intake channel (not shown in the figure). The air intake channel is located inside the main body 50-0. The air intake port 50-4 is connected to the air intake channel, and the air intake channel is connected to the multi-arc channel. The plasma gas enters the multi-arc channel through the air intake port 50-4 and the air intake channel in turn. The plasma gas of this embodiment depends on the nature of the solid waste and the process used, and can use air, oxygen, nitrogen, argon, etc.

[0051] The cooling assembly includes a circulating water inlet 50-5, a circulating water channel (not shown) and a circulating water outlet 50-6. The circulating water channel is located inside the main body 50-0. The circulating water channel is connected to the circulating water inlet 50-5 and the circulating water outlet 50-6 respectively. The circulating water flows along the circulating water inlet 50-5, the circulating water channel and the circulating water outlet 50-6 in sequence. The circulating water cools the plasma torch to ensure that the plasma torch is in a normal working environment.

[0052] The power supply assembly includes a cable outlet 50-7 and a cable channel (not shown in the figure), and the cable channel is provided with cables (not shown in the figure), and the cables are respectively connected to the electrodes of the multi-phase electrode assembly 50-1 and the AC power supply, and the AC power supply is the power supply of the multi-phase AC plasma torch.

[0053] In this embodiment, the AC power supply is the power supply of the multi-phase AC plasma torch, so the electrodes of the multi-phase electrode assembly 50-1 alternately serve as the cathode and the anode, so that the corrosion between the electrodes is more even, which can effectively alleviate the corrosion of the high temperature environment in the furnace and the harmful ions on the anode end surface, thereby greatly extending the service life of the anode and the cathode, and extending the service life of the entire plasma torch; an AC high voltage is set between the cathode and the anode of the multi-phase electrode assembly 50-1 through the AC power supply, and the plasma gas is introduced into the air intake assembly, so that a plasma jet is formed at the minimum spacing between the high-voltage electrodes, thereby eliminating the need for an AC-DC conversion device, and the use of AC power reduces the current conversion equipment, and a simpler transformer can be used to improve system reliability and scalability; the voltage drop in the arc is increased without increasing weight and cost; the AC arc movement is more intense, so that the convection transmission of the plasma is stronger and the overall thermal efficiency is also higher.

[0054] The multiphase AC plasma torch of this embodiment can be separately arranged in a conventional plasma gasification and melting system.

[0055] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A solid waste treatment device, characterized in that: The invention comprises a multiphase AC plasma torch and a mobile carriage, wherein a plasma gasification melting device is arranged in the mobile carriage, wherein the plasma gasification melting device comprises an automatic feeder, wherein the automatic feeder comprises a machine body, a feeding device, an opening and closing device and a cleaning device, wherein the feeding device and the opening and closing device are respectively arranged on the machine body, wherein the machine body is provided with a machine cavity, wherein the feeding device is arranged in the machine cavity, wherein the feeding device comprises a feeding motor, a feeding plate and a plurality of feeding drive components, wherein the feeding plate is arranged above the feeding drive component, wherein the feeding drive component drives the feeding plate to move up and down, wherein the feeding motor is arranged on the machine body, and wherein the output shaft of the feeding motor spans The machine cavity is rotatably connected to the machine body, the feeding device is arranged on the output shaft, the feeding motor transmits the motion to the feeding device through the output shaft, the feeding assembly includes an eccentric wheel, a transmission rod and a push block, the eccentric wheel is arranged on the output shaft, the machine cavity is also provided with a fixed plate, one end of the transmission rod is movably connected to the eccentric wheel, the other end of the transmission rod passes through the fixed plate and is slidably connected to the fixed plate, the push block is arranged at the other end of the transmission rod, the push block contacts the feeding plate, the opening and closing device includes a first clamping plate, a second clamping plate and an opening and closing mechanism, the first clamping plate and the second clamping plate are hinged, the first clamping plate is rotatably connected to the machine body, and the opening and closing mechanism is connected to the first clamping plate A first joint plate, a second joint plate and a machine body, the opening and closing mechanism starts to control the first joint plate and the second joint plate to fold and flip outward, the cleaning device automatically cleans the feed plate, the cleaning device includes a water spray head, a water pipe and a water tank, the water spray head is arranged on the first joint plate and the second joint plate, the water pipe connects the water spray head and the water tank, the water tank can be detachably installed on the water pipe, the multi-phase AC plasma torch includes a main body, a multi-phase electrode assembly, an air intake assembly, a cooling assembly and a power supply assembly, the multi-phase electrode assembly, the air intake assembly, the cooling assembly and the power supply assembly are respectively connected to the main body, the multi-phase electrode assembly is composed of multiple groups of electrodes, An angle of 30° is formed between adjacent electrodes, and multiple arc channels intersecting each other are formed between the electrodes of the multi-phase electrode assembly. The power supply assembly includes a cable outlet and a cable channel. The cable channel is provided with cables, and the cables are respectively connected to the electrodes of the multi-phase electrode assembly and the AC power supply. The AC power supply is the power supply of the multi-phase AC plasma torch. The multiple groups of electrodes of the multi-phase electrode assembly are alternately used as cathodes and anodes. An AC high voltage is set between the cathode and the anode of the multi-phase electrode assembly through the AC power supply. The air inlet assembly introduces plasma gas to form a plasma jet at the minimum spacing between the high-voltage electrodes.

2. A solid waste treatment device according to claim 1, characterized in that: The main body is provided with a connecting flange, the connecting flange is connected to the plasma furnace, and the multi-phase electrode assembly is arranged on the connecting flange.

3. A solid waste treatment device according to claim 1, characterized in that: The multiple groups of electrodes are distributed in a ring shape.

4. A solid waste treatment device according to claim 2, characterized in that: An insulator is fixedly arranged on the connecting flange, and the insulator is connected between the plasma furnace and the connecting flange.

5. A solid waste treatment device according to claim 1, characterized in that: The air intake assembly comprises an air intake port and an air intake channel. The air intake channel is located inside the main body, and the air intake port is connected to the air intake channel.

6. A solid waste treatment device according to claim 1, characterized in that: The cooling component includes a circulating water inlet, a circulating water channel and a circulating water outlet. The circulating water channel is located inside the main body and is connected to the circulating water inlet and the circulating water outlet respectively. The circulating water flows along the circulating water inlet, the circulating water channel and the circulating water outlet in sequence.

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