CN112996211A - Direct current arc plasma torch applied to hazardous waste treatment - Google Patents
Direct current arc plasma torch applied to hazardous waste treatment Download PDFInfo
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- CN112996211A CN112996211A CN202110175035.9A CN202110175035A CN112996211A CN 112996211 A CN112996211 A CN 112996211A CN 202110175035 A CN202110175035 A CN 202110175035A CN 112996211 A CN112996211 A CN 112996211A
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- 239000002920 hazardous waste Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 74
- 238000001816 cooling Methods 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 10
- 238000002679 ablation Methods 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/28—Cooling arrangements
Abstract
The invention discloses a direct current arc plasma torch applied to hazardous waste treatment, which comprises a cathode component, wherein the tail end of the cathode component is connected with a cathode, the outer wall of the cathode component is sleeved with an insulating component, the tail end of the insulating component is provided with an air hole, the direct current arc plasma torch also comprises an anode component sleeved outside the insulating component, the anode component and the insulating component form an air flow channel, the anode component is internally connected with an anode opposite to the cathode, the cathode and the anode form a plasma forming channel, and the anode is connected with one end, close to the air hole, of the insulating component, so that the plasma forming channel is communicated with the air; the discharge chamber formed by the cathode, the anode and the swirler can be arcing under heavy current, so that the time for adjusting to rated power is greatly optimized; the addition of the anode protective cover can ensure that the arc root does not overflow to the end face, thereby reducing the ablation of plasma arc to the anode end face; the service life of the whole plasma torch can be prolonged.
Description
Technical Field
The invention belongs to the technical field of plasma torches, and particularly relates to a direct-current arc plasma torch applied to hazardous waste treatment.
Background
The plasma torch mainly ionizes gas flowing through the plasma torch by electric arcs generated between the cathode part and the anode part, the gas is converted into plasma in the ionization process, and the gas has good fluidity, diffusivity, electric conductivity and thermal conductivity in the plasma state. The plasma torch is also called a plasma generator or a plasma heating system, the temperature of thermal plasma generated by the plasma torch through balanced ionization can reach more than 6000 ℃, a high-temperature heat source of 2000 ℃ can be formed after the thermal plasma is mixed with gas, and the arc core temperature is more than 30000 ℃. The thermal plasma can work under the environment of oxidizing, reducing, inert gas and the like, has higher temperature and power density than a combustion mode, and has the dual properties of fluid and electromagnetism, so that the plasma torch can be widely applied to the industrial field.
The direct current arc plasma torch has the advantages of simple structure, high stability, high power, high electrothermal conversion efficiency and the like, and relatively meets the requirements of industrial application. In the material preparation, the plasma torch is used for preparing powder and synthesizing materials, in the metallurgical industry, the plasma torch is used for melting and re-dissolving metals, preserving heat, new smelting process and the like, and in the environmental protection field, the plasma torch can effectively decompose harmful substances such as dioxin in waste incineration fly ash.
The thermal plasma torch mainly converts electric energy into heat energy, and due to the reasons of material limitation, structural design defects and the like, the service life of the plasma torch is limited and is not more than 100 hours, so that the technical development of the plasma torch is severely restricted. In order to prolong the service life of the plasma torch, most of the existing plasma torches are complex in design, the patent application number is CN201210079650.0, and the invention patent is named as 200KW non-transferred arc plasma generator and arc ignition method.
In patent application No. CN201922211850.7 entitled ablation-resistant high-thermal-efficiency plasma torch, it is introduced that the service life of the anode is prolonged by lining molybdenum with copper, but the key point of influencing the service life of the plasma torch is many, and especially in the case of operation with higher power, it is far from sufficient to improve the service life of the anode. The direct current arc plasma torch with the inter-electrode insertion section transfers plasma arcs in a multi-path air inlet mode, and finally achieves the purpose of improving arc voltage by improving arc length.
Disclosure of Invention
The invention aims to provide a direct current arc plasma torch applied to hazardous waste treatment, which can effectively prolong the service life of plasma.
The technical scheme adopted by the invention is that the direct current arc plasma torch applied to hazardous waste treatment comprises a cathode component, wherein the tail end of the cathode component is connected with a cathode, the outer wall of the cathode component is sleeved with an insulating component, the tail end of the insulating component is provided with an air hole, the direct current arc plasma torch further comprises an anode component sleeved outside the insulating component, the anode component and the insulating component form an air flow channel, an anode opposite to the cathode is connected in the anode component, the cathode and the anode form a plasma forming channel, the anode is connected with one end, close to the air hole, of the insulating component, the plasma forming channel is communicated with the air flow channel, the middle part of the anode is provided with a plasma channel, and the tail.
The invention is also characterized in that:
the cathode assembly comprises a cathode cooling pipeline, one end of the cathode cooling pipeline is fixedly connected with a cathode binding post, the other end of the cathode cooling pipeline is fixedly connected with a cathode, the cathode is connected with the cathode binding post, and the outer wall of the cathode cooling pipeline is sleeved with an insulating assembly.
The cathode cooling pipeline comprises a cylindrical outer shell, a cathode water inlet pipe is coaxially sleeved in the cylindrical outer shell, a plug is connected between the cylindrical outer shell and the cathode water inlet pipe, a cathode water outlet channel is formed by the cathode water inlet pipe and the cylindrical outer shell and communicated with the inside of the cathode water inlet pipe, an insulating assembly is sleeved on the outer wall of the cylindrical outer shell, one end of the cylindrical outer shell is connected with a cathode wiring terminal, and the other end of the cylindrical outer shell is connected with a cathode.
And one end of the cathode water inlet pipe close to the cathode is provided with a plurality of water through holes.
A plurality of rigid supporting nets are connected between the cylindrical outer shell and the cathode water inlet pipe.
The cathode cooling pipeline is sleeved with a cathode flange.
The insulating assembly comprises an insulating air guide cylinder sleeved outside the cathode assembly, the insulating air guide cylinder is sleeved in the anode assembly to form an air flow channel, an insulating flange is sleeved on the outer wall of one end of the insulating air guide cylinder, the other end of the insulating air guide cylinder is connected with one end of a swirler, and the other end of the swirler is connected with the anode.
The cyclone is provided with a forward vortex hole and a reverse vortex hole.
The positive pole subassembly is including cup jointing in the outside positive pole inner tube of insulating assembly, the outer end connection positive pole terminal in positive pole inner tube, positive pole inner tube overcoat connects the positive pole inlet tube, positive pole inlet tube length is greater than the positive pole inner tube, the positive pole outlet pipe is cup jointed outward to the positive pole inlet tube, and set up the water hole on the positive pole inlet tube, make positive pole inlet tube and positive pole outlet pipe be linked together, the casing is cup jointed outward to the positive pole outlet pipe, the cover positive pole in the positive pole inlet tube, positive pole inner tube tip is connected to the positive pole, the.
The invention has the beneficial effects that:
1. the ionization degree of the air flow is greatly improved by combining the air flow channel with the cyclone, the cyclone is of a double-row air flow structure, one row is a forward vortex hole, the other row is a reverse vortex hole, and the outlets of the double-row vortex holes are right opposite to the groove of the cathode cap. The discharge chamber formed by the cathode, the anode and the swirler can be used for arcing under high current, and the time for adjusting to rated power is greatly optimized.
2. The anode comprises an anode body and an anode protection end cover, and water guide channels are uniformly distributed on the outer side of the anode body, so that uniform heat dissipation can be realized.
3. The addition of the anode protective cover can ensure that the arc root does not overflow to the end face, thereby reducing the ablation of plasma arc to the anode end face; meanwhile, the melting furnace used by the plasma torch contains a large amount of chloride ions and other heavy metals, so that electrochemical corrosion can be caused to the surface of the copper anode in use, and under the protection of the anode protection end cover, the corrosion of a high-temperature environment in the furnace and harmful ions to the end face of the anode can be effectively relieved, so that the service life of the anode is greatly prolonged, and finally, the service life of the whole plasma torch is also prolonged.
Drawings
FIG. 1 is a schematic diagram of a DC arc plasma torch for hazardous waste treatment according to the present invention;
FIG. 2 is a schematic diagram of the structure of a cathode assembly and cathode in the present invention;
FIG. 3 is a schematic structural view of a cathode assembly according to the present invention;
FIG. 4 is a schematic view of the construction of the insulation assembly of the present invention;
FIG. 5 is a schematic view of the cyclone of the present invention;
FIG. 6 is a schematic diagram of the construction of an anode assembly and anode of the present invention;
FIG. 7 is a schematic view of the anode assembly of the present invention;
FIG. 8 is a schematic view of the anode structure of the present invention;
FIG. 9 is a schematic view of the gas flow in the present invention.
In the figure, 1 is a cathode assembly, 11 is a cathode cooling pipeline, 111 is a cylindrical outer shell, 112 is a cathode water inlet pipe, 113 is a plug, 114 is a rigid support net, 12 is a cathode terminal, 13 is a cathode flange, 2 is an insulating assembly, 21 is an insulating gas cylinder, 22 is an insulating flange, 23 is a swirler, 231 is a forward vortex hole, 232 is a reverse vortex hole, 3 is an anode assembly, 31 is an anode inner pipe, 32 is an anode water inlet pipe, 33 is an anode water outlet pipe, 34 is a shell, 35 is an anode terminal, 36 is an anode flange, 4 is a cathode, 5 is an anode, 6 is a plasma arc, 7 is a plasma channel, and 8 is an anode protection end cover.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a direct current arc plasma torch applied to dangerous waste treatment, as shown in figure 1, which comprises a cathode component 1, wherein the tail end of the cathode component 1 is connected with a cathode 4, the outer wall of the cathode component 1 is sleeved with an insulating component 2, the insulating component 2 can prevent the cathode component 1 and an anode component 4 from discharging in any area except the head of the cathode 4, the discharging position is ensured to be generated at the head of the cathode 4, so that gas can be ionized to generate plasma, high temperature is finally transmitted out of a plasma torch body along with airflow, the tail end of the insulating component 2 is provided with an air hole, the direct current arc plasma torch also comprises an anode component 3 sleeved outside the insulating component 2, an airflow channel is formed between the anode component 3 and the insulating component 2, an anode 5 opposite to the cathode 4 is connected in the anode component 3, the cathode 4 and the anode 5 form a plasma forming channel, the anode 5 is connected with one, the plasma forming channel is communicated with the airflow channel, the middle part of the anode 5 is provided with a plasma channel 7, and the tail end of the anode 5 is connected with an anode protection cover body 8.
As shown in fig. 2, the cathode assembly 1 includes a cathode cooling pipeline 11, the cathode cooling pipeline 11 can cool the cathode, one end of the cathode cooling pipeline 11 is fixedly connected with a cathode binding post 12, the cathode 4 is conveniently connected with electricity, the other end of the cathode cooling pipeline 11 is fixedly connected with the cathode 4, the cathode binding post 12 is connected with the cathode 4, and the outer wall of the cathode cooling pipeline 11 is sleeved with the insulating assembly 2.
As shown in fig. 3, the cathode cooling pipeline 11 includes a cylindrical outer shell 111, a cathode water inlet pipe 112 is coaxially sleeved in the cylindrical outer shell 111, a cathode water outlet channel is formed between the cathode water inlet pipe 112 and the cylindrical outer shell 111, the cathode water outlet channel is communicated with the cathode water inlet pipe 112, cold water is introduced into the cathode water inlet pipe 112 to cool the cathode 4, and the cold water is discharged through the water outlet pipeline, a plug 113 is connected between the cylindrical outer shell 111 and the cathode water inlet pipe 112, a water outlet is formed in the cylindrical outer shell 111, the plug 113 can discharge the cold water in the water outlet pipeline through a specific water outlet, so as to prevent the cold water in the water outlet pipeline from being discharged from a port and not easily recycled, the insulating assembly 2 is sleeved on the outer wall of the cylindrical outer shell 111, one end of.
One end of the cathode water inlet pipe 112, which is close to the cathode 4, is provided with a plurality of water through holes, so that cold water introduced into the cathode water inlet pipe 112 can be discharged into a cathode water outlet channel, and cold water circulation is promoted.
A plurality of rigid support nets 114 are connected between the cylindrical outer casing 111 and the cathode inlet pipe 112, and can support the cathode inlet pipe 112 inside while allowing cold water to pass therethrough.
The cathode cooling pipeline 11 is sleeved with a cathode flange 13, so that the cathode cooling pipeline 11 is conveniently connected with the insulating assembly 2 and the anode assembly 3.
As shown in fig. 4, the insulating assembly 2 includes an insulating gas cylinder 21 sleeved outside the cathode assembly 1, the insulating gas cylinder 21 is sleeved inside the anode assembly 3 to form an air flow channel, an insulating flange 22 is sleeved on an outer wall of one end of the insulating gas cylinder 21, the other end of the insulating gas cylinder 21 is connected with one end of a swirler 23, the other end of the swirler 23 is connected with the anode 5, so that external air can enter the air flow channel and further enter the plasma generation channel through the swirler 23 to discharge plasma formed between the cathode 4 and the anode 5.
As shown in fig. 5, the swirler 23 is provided with a forward swirl hole 231 and a reverse swirl hole 232, the forward swirl hole 231 and the reverse swirl hole 232 are both right opposite to the cathode 4, the reynolds number of the air flow can be increased, the laminar flow state length of the air flow is reduced, the turbulent flow state length is increased, in a limited channel, the ionization degree of the air flow in the channel is greatly enhanced by increasing the turbulent flow state air flow length, the generation of high arc pressure in the state of the insertion section between the default electrodes is realized, and finally, the generation of high power is realized.
As shown in fig. 6 and 7, the anode assembly 3 includes an anode inner tube 31 sleeved outside the insulating assembly 2, the outer end of the anode inner tube 31 is connected with an anode terminal 35, the anode inner tube 31 is sleeved with an anode water inlet tube 32 to form an anode water inlet channel, the length of the anode water inlet tube 32 is greater than that of the anode inner tube 31, the anode water inlet tube 32 is sleeved with an anode water outlet tube 33 to form an anode water outlet channel, one end of the anode water inlet tube 32 is provided with a water hole, the anode water inlet channel is communicated with one end of the anode water outlet channel, the other end of the anode water outlet tube 33 is sleeved with a shell 34, an anode 5 is sleeved in the anode water inlet tube 32, the anode 5 is connected with the end of the anode inner tube 31.
The shell 34 is formed by sleeving an inner stainless steel pipe and an outer anti-corrosion pipe, so that the corrosion of chloride ions in the melting furnace to a stainless steel shell can be effectively reduced, and the service life of the torch is prolonged; the thickness of the pipe wall of the anti-corrosion pipe is 1-3 mm, and the length of the pipe wall is 150-300 mm. When the anti-corrosion pipe reaches the service life, the anti-corrosion pipe is replaced, the whole anode welding assembly is not required to be replaced, and the service life of the whole plasma torch is greatly prolonged.
As shown in fig. 8, the anode 5 includes a plasma channel 7 formed therein, a groove is formed at one end of the anode 5, an anode protection end cap 8 is connected in the groove, a circular hole is formed in the middle of the anode protection end cap 8 and is communicated with the plasma channel 7, the anode protection end cap 8 is made of a high-temperature-resistant insulating material, preferably ceramic, such as corundum or boron nitride, and the anode protection end cap 8 can ensure that the arc root does not overflow to the end face, thereby reducing the ablation of the plasma arc to the anode end face; meanwhile, the melting furnace used by the plasma torch contains a large amount of chloride ions and other heavy metals, so that electrochemical corrosion can be caused to the surface of the copper anode in use, the corrosion of the high-temperature environment in the furnace and harmful ions to the end face of the anode can be effectively relieved under the protection of the anode protection end cover 8, the service life of the anode is greatly prolonged, the service life of the whole plasma torch is finally prolonged, and the other end of the anode 5 is connected with the insulating component 2 and the anode component 3.
The invention relates to a direct current arc plasma torch applied to hazardous waste treatment, which adopts the use principle of a controller as follows:
connect negative pole flange 13, insulating flange 22, positive pole flange 36 through the bolt, let in cold water respectively in to the negative pole inlet tube, positive pole inlet channel, insert the power with negative pole terminal 12, positive pole terminal 35 simultaneously, as shown in fig. 9, it lets in gas to form the passageway through the air current passageway to plasma, plasma between positive pole 5 and negative pole 4 forms plasma arc 6 between the passageway, the arc root of plasma arc 6 is rotary motion at plasma passageway 7 inner wall, under the effect of anodic protection end cover 8, plasma arc 6 arc root is restricted in the passageway, can no longer escape and burn the positive pole terminal surface. The anode is cooled by the cold water in the anode water inlet channel and the anode water outlet channel, and the cathode is cooled by the cold water in the cathode water inlet pipe 112 and the cathode water outlet channel.
Through the mode, the direct current arc plasma torch applied to hazardous waste treatment greatly improves the ionization degree of airflow by combining the airflow channel with the cyclone, the cyclone is of a double-row airflow structure, one row is provided with the forward swirl holes, the other row is provided with the reverse swirl holes, and the outlets of the double-row swirl holes are right opposite to the groove of the cathode cap. The discharge chamber formed by the cathode, the anode and the swirler can be used for arcing under high current, and the time for adjusting to rated power is greatly optimized. The anode comprises an anode body and an anode protection end cover, and water guide channels are uniformly distributed on the outer side of the anode body, so that uniform heat dissipation can be realized; the addition of the anode protective cover can ensure that the arc root does not overflow to the end face, thereby reducing the ablation of plasma arc to the anode end face; meanwhile, the melting furnace used by the plasma torch contains a large amount of chloride ions and other heavy metals, so that electrochemical corrosion can be caused to the surface of the copper anode in use, and under the protection of the anode protection end cover, the corrosion of a high-temperature environment in the furnace and harmful ions to the end face of the anode can be effectively relieved, so that the service life of the anode is greatly prolonged, and finally, the service life of the whole plasma torch is also prolonged.
Claims (9)
1. A direct current arc plasma torch for hazardous waste treatment, characterized by comprising a cathode assembly (1), the tail end of the cathode component (1) is connected with a cathode (4), the outer wall of the cathode component (1) is sleeved with an insulating component (2), the tail end of the insulating component (2) is provided with an air hole, and the anode component (3) is sleeved outside the insulating component (2), the anode assembly (3) and the insulating assembly (2) form an airflow channel, the anode assembly (3) is internally connected with an anode (5) opposite to the cathode (4), the cathode (4) and the anode (5) form a plasma forming channel, the anode (5) is connected with one end of the insulating component (2) close to the air hole, so that the plasma forming channel is communicated with the airflow channel, the middle part of the anode (5) is provided with a plasma channel (7), and the tail end of the anode (5) is connected with an anode protection cover body (8).
2. The direct current arc plasma torch applied to dangerous waste treatment of claim 1, wherein the cathode assembly (1) comprises a cathode cooling pipe (11), one end of the cathode cooling pipe (11) is fixedly connected with a cathode terminal (12), the other end of the cathode cooling pipe (11) is fixedly connected with a cathode (4), the cathode (4) is connected with the cathode terminal (12), and the outer wall of the cathode cooling pipe (11) is sleeved with an insulating assembly (2).
3. The direct current arc plasma torch applied to hazardous waste treatment according to claim 2, wherein the cathode cooling pipeline (11) comprises a cylindrical outer shell (111), a cathode water inlet pipe (112) is coaxially sleeved in the cylindrical outer shell (111), a plug (113) is connected between the cylindrical outer shell (111) and the cathode water inlet pipe (112), the cathode water inlet pipe (112) and the cylindrical outer shell (111) form a cathode water outlet channel, the cathode water outlet channel is communicated with the inside of the cathode water inlet pipe (112), an insulating component (2) is sleeved on the outer wall of the cylindrical outer shell (111), one end of the cylindrical outer shell (111) is connected with a cathode terminal (12), and the other end of the cylindrical outer shell is connected with the cathode (4).
4. The direct current arc plasma torch for dangerous waste treatment according to claim 3, wherein a plurality of water through holes are opened at one end of the cathode water inlet pipe (112) near the cathode (4).
5. A dc arc plasma torch for hazardous waste treatment according to claim 3, characterized in that a plurality of rigid support nets (114) are connected between the cylindrical outer housing (111) and the cathode inlet pipe (112).
6. A dc arc plasma torch for dangerous waste treatment applications according to claim 2, characterized in that the cathode cooling pipe (11) is externally sheathed with a cathode flange (13).
7. The direct current arc plasma torch for dangerous waste treatment according to claim 1, wherein the insulation assembly (2) comprises an insulation gas guide cylinder (21) sleeved outside the cathode assembly (1), the insulation gas guide cylinder (21) is sleeved inside the anode assembly (3) to form a gas flow channel, an insulation flange (22) is sleeved on the outer wall of one end of the insulation gas guide cylinder (21), the other end of the insulation gas guide cylinder (21) is connected with one end of a swirler (23), and the other end of the swirler (23) is connected with the anode (5).
8. A direct current arc plasma torch for hazardous waste treatment according to claim 7, characterized in that the cyclone (23) is provided with a forward swirl hole (231) and a reverse swirl hole (232).
9. The direct current arc plasma torch applied to dangerous waste treatment of claim 1, wherein the anode assembly (3) comprises an anode inner tube (31) sleeved outside the insulating assembly (2), the outer end of the anode inner tube (31) is connected with an anode terminal (35), the anode inner tube (31) is sleeved with an anode water inlet tube (32), the length of the anode water inlet tube (32) is greater than that of the anode inner tube (31), the anode water inlet tube (32) is sleeved with an anode water outlet tube (33), the anode water inlet tube (32) is provided with water holes, the anode water inlet tube (32) is communicated with the anode water outlet tube (33), the anode water outlet tube (33) is sleeved with a shell (34), the anode (5) is sleeved in the anode water inlet tube (32), and the anode (5) is connected with the end of the anode inner tube (31) and the anode terminal (35), an anode flange (36) is sleeved outside the anode inner tube (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110175035.9A CN112996211B (en) | 2021-02-09 | 2021-02-09 | Direct-current arc plasma torch applied to hazardous waste treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110175035.9A CN112996211B (en) | 2021-02-09 | 2021-02-09 | Direct-current arc plasma torch applied to hazardous waste treatment |
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| CN112996211A true CN112996211A (en) | 2021-06-18 |
| CN112996211B CN112996211B (en) | 2023-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114222415A (en) * | 2021-12-31 | 2022-03-22 | 齐鲁工业大学 | Plasma torch system for burning anode chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114222415A (en) * | 2021-12-31 | 2022-03-22 | 齐鲁工业大学 | Plasma torch system for burning anode chamber |
| CN114222415B (en) * | 2021-12-31 | 2023-05-23 | 齐鲁工业大学 | Plasma torch system for burning anode chamber |
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