Plasma waste gas treatment device

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a plasma waste gas treatment device which comprises a reaction box, an exhaust port fixedly installed in a front shielding plate, a flow equalizing plate fixedly installed on the inner side of the exhaust port, an air inlet fixedly installed at the rear end of the upper surface of the reaction box, a machine shell arranged at the upper end of a through groove, and a steam cooling mechanism arranged in the machine shell. Limiting angle steel is fixedly installed on the inner side of the reaction box and located at the lower end of the steam cooling mechanism, an ionization mechanism is arranged between the limiting angle steel, a condensation mechanism is arranged in the condenser and the reaction box, and a spraying dust removal mechanism is arranged at the lower end of the sprayer. The tray which is inserted in a sliding manner is adopted, so that a worker can quickly disassemble and assemble the ionization plate, dust removal and maintenance can be regularly carried out on the surface of the ionization plate, and an operator is allowed to quickly replace the damaged or aged ionization plate under the condition that the machine is not stopped; external cold air is introduced into the equipment through the fan by adopting the steam cooling mechanism, so that the temperature in the equipment can be effectively reduced, the service life of the equipment is prolonged, and the operation stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular, to a plasma waste gas treatment device. Background Art

[0002] Plasma waste gas treatment is an environmental protection technology that uses the high-energy characteristics of plasma to purify waste gas. Boilers and kilns emit a large amount of nitrogen oxides, which is one of the important sources of air pollution and has significant hazards to the environment and human health. The use of a plasma waste gas treatment device can decompose them into nitrogen and water.

[0003] During the operation of the plasma waste gas treatment equipment, a large amount of heat is generated during the discharge process. Especially when treating high-concentration waste gas, the temperature inside the equipment will gradually increase. Excessive temperature may cause overheating of the equipment components, affecting the stability and service life of the equipment.

[0004] In the existing plasma equipment waste gas treatment device, the electrodes mostly adopt a fixed structure. After long-term use, the ionization plate needs to be cleaned regularly on the surface. The dust on the surface will form an insulating layer, seriously affecting the operation efficiency of the equipment. The fixed structure requires the overall disassembly of the equipment, and the maintenance cost is relatively high.

[0005] When treating boiler nitrogen oxide waste gas by plasma, the discharged nitrogen oxide has a relatively high temperature. Directly entering the equipment will cause some active particles to be quickly consumed, reducing the treatment efficiency, and the high temperature will affect the internal equipment and even damage the components.

[0006] The nitrogen oxide waste gas contains a large amount of moisture and impurities. After participating in the internal reaction, it will decompose into hydrogen and oxygen, increasing the corrosion risk inside the equipment. Summary of the Invention

[0007] The purpose of the present invention is to solve the disadvantages existing in the background art, and to propose a plasma waste gas treatment device.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows: A plasma waste gas treatment device includes a reaction tank. A front shield is fixedly installed at the front end of the reaction tank. Two symmetric legs are provided at the bottom of the reaction tank. An exhaust port is fixedly installed inside the front shield. A flow equalizing plate is fixedly installed inside the exhaust port. An air inlet is fixedly installed at the rear end of the upper surface of the reaction tank. A waste material port is fixedly installed on the lower surface of the reaction tank. An inspection door is rotatably installed on the right surface of the reaction tank. A filter plate is fixedly installed inside the reaction tank at the lower end of the air inlet. An isolation plate is provided below the filter plate. An air inlet mechanism is provided outside the isolation plate. A through groove is opened at the middle end of the upper surface of the reaction tank. A machine housing is provided at the upper end of the through groove. A steam cooling mechanism is provided inside the machine housing. A limiting angle steel is fixedly installed inside the reaction tank at the lower end of the steam cooling mechanism. An ionization mechanism is provided between the limiting angle steels. Condensers are fixedly installed at both the upper and lower ends of the outer surface of the reaction tank. A condensation mechanism is provided between the condensers and the reaction tank. A sprayer is fixedly installed on the upper surface of the reaction tank between the air inlet and the machine housing. A spray dust removal mechanism is provided below the sprayer.

[0009] Preferably, the steam cooling mechanism includes a water tank fixedly installed on one side of the machine housing. A water pipe is fixedly installed at the upper end of the water tank. The water pipe penetrates through the machine housing.

[0010] Preferably, two symmetric fans are provided on the lower surface of the machine housing. Side plates are fixedly installed on both the front and rear surfaces of the machine housing. Cooling wet curtains are fixedly installed inside the machine housing on both sides of the two side plates. A plurality of water distribution channels arranged at equal intervals are fixedly installed at the upper ends of the two cooling wet curtains where the water pipe is located.

[0011] Preferably, the air inlet mechanism includes an air duct fixedly installed below the filter plate. An isolation plate is fixedly installed on one side surface of the air duct. A fan is fixedly installed on the other side surface of the air duct. An air outlet is opened on the surface of the isolation plate. The upper end of the filter plate communicates with the lower surface of the air inlet.

[0012] Preferably, the ionization mechanism includes a tray slidably installed inside the limiting angle steel. A fixed straight plate is fixedly installed on each of the upper sides of the tray. A plurality of connecting pins are inserted on the outer surfaces of the two fixed straight plates. A plurality of ionization sheets arranged at equal intervals are provided between every two connecting pins.

[0013] Preferably, a handrail is rotatably installed at the upper end of the outer surface of each fixed straight plate. A conductive plate is installed through the upper end between the two fixed straight plates. A jack is opened on the inner surface of the fixed straight plate. A straight rod is provided between every two jacks.

[0014] Preferably, the condensation mechanism includes a condensation pipe penetrating through the reaction tank. A condensation plate is sleeved on the part of the condensation pipe located inside the reaction tank.

[0015] Preferably, the spray dust removal mechanism includes a plurality of shunt pipes fixedly installed at the lower end of the sprayer. Nozzles are fixedly installed at the lower ends of the shunt pipes, and splash-proof plates are fixedly installed at the rear ends of the nozzles.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a condensing pipe as a pretreatment component for the gas. While removing moisture and organic substances, it reduces the content of harmful substances in the boiler exhaust gas. During the pretreatment process, it can effectively remove moisture and impurities in the nitrogen oxide exhaust gas, and some particulate matters and impurities will also settle due to the temperature reduction, thus reducing the burden on the subsequent plasma treatment equipment. 2. The sliding and insertable tray facilitates the staff to quickly disassemble and assemble the ionization plates, and the surface of the ionization plates can be dusted and maintained regularly. It allows the operator to quickly replace damaged or aged ionization plates without shutting down the machine, reducing the equipment downtime and improving the production efficiency. 3. The condensing pipe is used to pre-treat the nitrogen oxide exhaust gas. The condensing pipe is close to the air intake mechanism to condense the nitrogen oxide exhaust gas entering the equipment interior. While removing moisture and organic substances, it can reduce the content of harmful substances in the nitrogen oxide exhaust gas. At the same time, the presence of moisture will increase the energy consumption of the plasma and reduce the reaction efficiency. After decomposition, it will produce oxygen and hydrogen, increasing the corrosion risk inside the equipment. 4. During the operation of the plasma exhaust gas treatment equipment, a large amount of heat will be generated. Excessive temperature will cause the equipment components to overheat, affecting the stability and service life. The steam cooling mechanism introduces external cold air into the equipment interior through a fan, which can effectively reduce the temperature inside the equipment, extend the service life of the equipment, and improve the operation stability. 5. The design of the slidable and pluggable ionization plates can ensure the uniform distribution of the ionization plates in the equipment, thus achieving a more uniform discharge effect and improving the treatment efficiency of the nitrogen oxide exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a plasma exhaust gas treatment device of the present invention; Figure 2 is a schematic structural diagram of another perspective of a plasma exhaust gas treatment device of the present invention; Figure 3 is a cross-sectional view of a plasma exhaust gas treatment device of the present invention; Figure 4 is a schematic diagram of the steam cooling mechanism of a plasma exhaust gas treatment device of the present invention; Figure 5 is a schematic diagram of the internal structure of the reaction tank of a plasma exhaust gas treatment device of the present invention; Figure 6 is a schematic diagram of the tray structure of a plasma exhaust gas treatment device of the present invention; Figure 7 Structural schematic diagram of the ionization mechanism of a plasma waste gas treatment device of the present invention; Figure 8 Structural schematic diagram of the air intake mechanism of a plasma waste gas treatment device of the present invention.

[0018] 1. Reaction chamber; 2. Air inlet; 3. Waste outlet; 4. Front shield; 5. Exhaust port; 6. Maintenance door; 7. Flow equalizing plate; 8. Legs; 9. Through groove; 10. Sprayer; 11. Condensing pipe; 12. Condensing plate; 13. Shunt pipe; 14. Nozzle; 15. Rotating lock; 16. Condensing machine; 17. Splash guard; 101. Water tank; 102. Water pipe; 103. Water distribution channel; 104. Cooling wet curtain; 105. Machine housing; 106. Fan; 107. Side plate; 201. Tray; 202. Limit angle steel; 203. Fixed straight plate; 204. Connecting pin; 205. Straight rod; 206. Handrail; 207. Jack; 208. Ionization sheet; 209. Conductive plate; 301. Fan; 302. Air duct; 303. Filter plate; 304. Air outlet; 305. Isolation plate. Detailed implementation manners

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0020] As Figures 1 - 8 shown, a plasma waste gas treatment device includes a reaction chamber 1, a front shield 4 is fixedly installed at the front end of the reaction chamber 1, two symmetric legs 8 are provided at the bottom of the reaction chamber 1, an exhaust port 5 is fixedly installed inside the front shield 4, a flow equalizing plate 7 is fixedly installed inside the exhaust port 5, an air inlet 2 is fixedly installed at the rear end of the upper surface of the reaction chamber 1, a waste outlet 3 is fixedly installed on the lower surface of the reaction chamber 1, a maintenance door 6 is rotatably installed on the right side surface of the reaction chamber 1, a filter plate 303 is fixedly installed inside the reaction chamber 1 at the lower end of the air inlet 2, an isolation plate 305 is provided below the filter plate 303, an air intake mechanism is provided outside the isolation plate 305, a through groove 9 is opened in the middle of the upper surface of the reaction chamber 1, a machine housing 105 is provided at the upper end of the through groove 9, a steam cooling mechanism is provided inside the machine housing 105, a limit angle steel 202 is fixedly installed inside the reaction chamber 1 at the lower end of the steam cooling mechanism, an ionization mechanism is provided between the limit angle steels 202, condensing machines 16 are fixedly installed at both the upper and lower ends of the outer surface of the reaction chamber 1, a condensing mechanism is provided between the condensing machines 16 and the reaction chamber 1, a sprayer 10 is fixedly installed on the upper surface of the reaction chamber 1 between the air inlet 2 and the machine housing 105, and a spray dust removal mechanism is provided below the sprayer 10.

[0021] As Figure 4As shown in the figure, the steam cooling mechanism includes a water tank 101 fixedly installed on one side of the casing 105. A water pipe 102 is fixedly installed at the upper end of the water tank 101, and the water pipe 102 penetrates through the casing 105.

[0022] On the lower surface of the casing 105, there are two symmetrically arranged fans 106. Side plates 107 are fixedly installed on the front and rear surfaces of the casing 105. Inside the casing 105, cooling wet curtains 104 are fixedly installed on the inner sides of the two side plates 107. At the upper ends of the two cooling wet curtains 104, a number of water distribution channels 103 are fixedly installed at equal intervals. The water distribution channels 103 are located at the upper ends of the cooling wet curtains 104. By continuously watering through the water pipe 102, they are kept at a low temperature and humidity. Then, the fans 106 introduce the cooled outdoor air into the equipment to cool the equipment after the discharge operation.

[0023] As Figure 5 shown in the figure, the condensation mechanism includes a condensation pipe 11 penetrating through the reaction chamber 1. A condensation plate 12 is sleeved on the part of the condensation pipe 11 located inside the reaction chamber 1. The condensation mechanism is located between the air intake mechanism and the ionization mechanism to pre-treat the high-temperature nitrogen oxide waste gas entering the equipment interior. Multiple condensation plates 12 cool the passing nitrogen oxide waste gas through the condensation pipe 11 to avoid the influence of high-temperature nitrogen oxide waste gas on the stability and reaction efficiency of the plasma, making it reach the optimal temperature range for the equipment operation. Moreover, the condensation mechanism can condense the water vapor inside to reduce the corrosion risk of the equipment, and cooperate with the spraying mechanism to conduct double pre-treatment on the high-temperature nitrogen oxide waste gas, effectively improving the internal reaction efficiency.

[0024] The spraying and dust removal mechanism includes a number of shunt pipes 13 fixedly installed at the lower end of the sprayer 10. Nozzles 14 are fixedly installed at the lower ends of the shunt pipes 13. Splash-proof plates 17 are fixedly installed at the rear ends of the nozzles 14. Dust and particulate matter in the nitrogen oxide waste gas will form an insulating layer during the plasma discharge process, hindering the ionization reaction and reducing the treatment efficiency. By spraying cooling water through the nozzles 14 to conduct heat exchange with the high-temperature nitrogen oxide waste gas, the temperature of the nitrogen oxide waste gas is quickly reduced, and the dust and particulate matter in the nitrogen oxide waste gas can be captured, making them settle or dissolve in the liquid, thereby reducing the interference of dust on the plasma reaction and improving the treatment effect. The spraying mechanism and the condensation mechanism are both arranged at the front end of the ionization mechanism to conduct double pre-treatment on the high-temperature nitrogen oxide waste gas. This not only reduces the temperature of the nitrogen oxide waste gas, decreases the contents of dust, moisture and organic matter, but also creates better conditions for the plasma reaction and improves the overall treatment effect.

[0025] As Figure 7As shown in the figure, the ionization mechanism includes a tray 201 slidably installed inside the limit angle steel 202. On both sides of the upper end of the tray 201, a fixed straight plate 203 is fixedly installed respectively. A number of connecting pins 204 are inserted on the outer surfaces of the two fixed straight plates 203. Between every two connecting pins 204, a number of ionization plates 208 are arranged at equal intervals. The ionization plates 208 are arranged in multiple groups, effectively increasing the collection area. And the modular design avoids the need for operators to carry out maintenance and disassembly, without the need for long-term shutdown for replacement, improving the operation efficiency and stability of the equipment, and reducing the maintenance cost and labor intensity.

[0026] On the upper end of the outer surface of each fixed straight plate 203, a handrail 206 is rotatably installed. A conductive plate 209 is installed through the upper end between the two fixed straight plates 203. A jack 207 is opened on the inner surface of the fixed straight plate 203. A straight rod 205 is arranged between every two jacks 207. By pulling the handrail 206, the fixed straight plate 203 can be pulled to move along the limit angle steel 202. The operator can rotate the maintenance door 6 to observe and maintain the inside of the equipment without large-scale shutdown and disassembly.

[0027] As Figure 8 As shown in the figure, the air intake mechanism includes an air duct 302 fixedly installed at the lower end of the filter plate 303. On one side surface of the air duct 302, an isolation plate 305 is fixedly installed. On the other side surface of the air duct 302, a fan 301 is fixedly installed. An air outlet 304 is opened on the surface of the isolation plate 305. The filter plate 303 is located at the lower end of the air intake port 2. Since the boiler nitrogen oxide waste gas contains a large amount of particulate matter and impurities, a filter plate 303 for preliminary filtration is provided to treat the nitrogen oxide waste gas. Then the nitrogen oxide waste gas enters the left side of the isolation plate 305 through the air duct 302.

[0028] Working principle: The plasma waste gas treatment equipment uses a high-voltage generator to form plasma. Under the action of a large number of electrons, the nitrogen oxide waste gas passing through the purifier is converted into various active particles, which combine with oxygen in the air to generate harmless substances such as carbon dioxide and water, purifying the waste gas. When discharging, the gas is broken down by the discharge voltage into a mixture of various impurities.

[0029] During operation, connect the air intake port 2 of this equipment to the boiler exhaust port, and start the fan 301 fixedly installed inside the equipment to introduce the nitrogen oxides generated during the operation of the boiler into the air duct 302. Since there is a large amount of particulate matter and impurities in the boiler waste gas, a filter plate 303 is fixedly installed at the upper end of the air duct 302 for preliminary filtration, filtering the particulate matter and impurities on the outer surface of the filter plate 303. The operator regularly cleans it to avoid a reduction in the air intake caused by dust accumulation.

[0030] The nitrogen oxide waste gas generated by the boiler enters the equipment air duct 302 and is discharged inward through the air outlet 304 opened on one side of the isolation plate 305. The temperature of the nitrogen oxide waste gas generated by the boiler is usually relatively high. Directly entering the equipment interior will cause the equipment temperature to rise, affecting the stability and reaction efficiency of the plasma, and even damaging the equipment components. By driving the condensation plate 12 and the condensation pipe 11 through the condenser 16, pre-treatment is carried out on the high-temperature nitrogen oxide waste gas entering the equipment interior, which can effectively reduce the temperature of the nitrogen oxide waste gas and make it reach the optimal operating temperature range of the plasma waste gas treatment equipment, thereby improving the operating efficiency and stability of the equipment. And during the pre-treatment process, the moisture and impurities in the nitrogen oxide waste gas can be effectively removed. Through the condensation effect, the water vapor condenses into liquid water, which is convenient for separation and discharge. Some particulate matters and impurities will also settle due to the temperature reduction, thus reducing the burden on the subsequent plasma treatment equipment.

[0031] Inside the reaction chamber 1, a plurality of limit angle steels 202 are arranged on the left side of the condensation mechanism for limiting and installing the ionization mechanism participating in the plasma waste gas treatment. In this equipment, a maintenance door 6 is rotatably installed on one side of the reaction chamber 1 and cooperates with a rotary lock 15, which can quickly install the ionization mechanism, allowing the operator to quickly replace the damaged or aged ionization sheets 208 without stopping the machine, greatly reducing the downtime of the equipment, improving the production efficiency, and without a complex disassembly and installation process, reducing the maintenance cost and labor intensity.

[0032] Through the handrail 206, the operator can move the fixed straight plate 203 on the limit angle steel 202. Between every two fixed straight plates 203, a plurality of connecting pins 204 are provided. Between every two connecting pins 204, a number of ionization sheets 208 are arranged at equal intervals. These ionization sheets 208 are installed through the straight rods 205 between the connecting pins 204. The operator can quickly disassemble a plurality of ionization sheets 208 through the connecting pins 204. At the upper end of the fixed straight plate 203, a conductive plate 209 for conducting electricity is provided. Using a plurality of ionization sheets 208 increases the collection area, ensuring the purification efficiency. During the long-term operation process, the ionization sheets 208 will accumulate pollutants such as dust and organic residues. These pollutants will cause the formation of an insulating layer on the surface of the ionization sheets 208, hindering the ionization reaction and reducing the nitrogen oxide waste gas treatment efficiency. The operator regularly taking out the ionization mechanism for cleaning can reduce the corrosion of the ionization sheets 208 by pollutants and extend the service life of the equipment.

[0033] The nitrogen oxide waste gas after participating in the reaction will generate gas and water. A waste outlet 3 is fixedly installed at the bottom of the reaction box 1 for centralized discharge, which is convenient for the operator to recycle and process. During the operation of the plasma waste gas treatment equipment, a large amount of heat will be generated during discharge, and the internal temperature of the equipment will rise significantly. Excessive temperature will cause the ionization sheet 208 and other equipment components to overheat, affecting their stability and service life, and even deforming at high temperatures. Therefore, a steam cooling mechanism is set to introduce external cold air into the interior. An outer casing 105 is provided at the upper end of the reaction box 1. A water tank 101 is provided on one side of the outer casing 105. A water pipe 102 for conveying water is connected between the water tank 101 and the interior of the outer casing 105. Side plates 107 are respectively provided at the front and rear ends inside the outer casing 105. Cooling wet curtains 104 are provided on both sides inside the outer casing 105 at the rear of the side plates 107. Water is sprayed through the water distribution channel 103 at the upper end of the cooling wet curtain 104 by the water pipe 102 to maintain a low temperature state, significantly improving the cooling effect. Symmetric fans 106 are provided at the lower end inside the outer casing 105. The outdoor air passing through the cooling wet curtain 104 is humidified and cooled by the fans 106 and introduced into the equipment interior through the fans 106 to cool the equipment components such as the ionization sheet 208, avoiding a reduction in work efficiency caused by excessive temperature. The nitrogen oxide waste gas after the above steps flows to the left side of the reaction box 1 and is discharged through the exhaust port 5. A flow equalizing plate 7 is provided to avoid excessive load on a single air outlet.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma waste gas treatment device, comprising a reaction tank (1), characterized in that: A front baffle (4) is fixedly installed at the front end of the reaction chamber (1). Two symmetric legs (8) are provided at the bottom of the reaction chamber (1). An exhaust port (5) is fixedly installed inside the front baffle (4). A flow equalizing plate (7) is fixedly installed inside the exhaust port (5). An air inlet (2) is fixedly installed at the rear end of the upper surface of the reaction chamber (1). A waste outlet (3) is fixedly installed on the lower surface of the reaction chamber (1). An inspection door (6) is rotatably installed on the right side surface of the reaction chamber (1). A filter plate (303) is fixedly installed inside the reaction chamber (1) at the lower end of the air inlet (2). An isolation plate (305) is provided below the filter plate (303). An air inlet mechanism is provided outside the isolation plate (305). A through groove (9) is opened in the middle of the upper surface of the reaction chamber (1). A machine housing (105) is provided above the through groove (9). A steam cooling mechanism is provided inside the machine housing (105). A limiting angle steel (202) is fixedly installed inside the reaction chamber (1) at the lower end of the steam cooling mechanism. An ionization mechanism is provided between the limiting angle steel (202). Condensers (16) are fixedly installed at both the upper and lower ends of the outer surface of the reaction chamber (1). A condensation mechanism is provided between the condensers (16) and the reaction chamber (1). A sprayer (10) is fixedly installed on the upper surface of the reaction chamber (1) between the air inlet (2) and the machine housing (105). A spray dust removal mechanism is provided below the sprayer (10).

2. The plasma waste gas treatment device according to claim 1, wherein: The steam cooling mechanism includes a water tank (101) fixedly installed on one side of the machine housing (105). A water pipe (102) is fixedly installed at the upper end of the water tank (101). The water pipe (102) penetrates through the machine housing (105).

3. An air plasma waste gas treatment device according to claim 2, characterized in that: Two symmetric fans (106) are provided on the lower surface of the machine housing (105). Side plates (107) are fixedly installed on both the front and rear surfaces of the machine housing (105). Cooling wet curtains (104) are fixedly installed inside the machine housing (105) on the inner sides of the two side plates (107). A plurality of water distribution channels (103) arranged at equal intervals are fixedly installed at the upper ends of the two cooling wet curtains (104) where the water pipe (102) is located.

4. A plasma waste gas treatment device according to claim 1, characterized in that: The air inlet mechanism includes an air duct (302) fixedly installed at the lower end of the filter plate (303). An isolation plate (305) is fixedly installed on one side surface of the air duct (302). A fan (301) is fixedly installed on the other side surface of the air duct (302). An air outlet (304) is opened on the surface of the isolation plate (305). The upper end of the filter plate (303) communicates with the lower surface of the air inlet (2).

5. A plasma waste gas treatment device according to claim 1, characterized in that: The ionization mechanism includes a tray (201) slidably installed inside the limiting angle steel (202). A fixed straight plate (203) is fixedly installed on each of the two sides at the upper end of the tray (201). A plurality of connecting pins (204) are inserted on the outer surfaces of the two fixed straight plates (203). A plurality of ionization sheets (208) arranged at equal intervals are provided between every two connecting pins (204).

6. An air plasma waste gas treatment device according to claim 5, characterized in that: A handrail (206) is rotatably installed at the upper end of the outer surface of each of the fixed straight plates (203). A conductive plate (209) is installed through the upper ends between the two fixed straight plates (203). A jack (207) is provided on the inner surface of the fixed straight plate (203). A straight rod (205) is provided between every two jacks (207).

7. A plasma waste gas treatment device according to claim 1, characterized in that: The condensation mechanism includes a condensing pipe (11) passing through the reaction tank (1), and a condensing plate (12) is sleeved on the part of the condensing pipe (11) located inside the reaction tank (1).

8. A plasma waste gas treatment device according to claim 1, characterized in that: The spray dust removal mechanism includes a plurality of shunt pipes (13) fixedly installed at the lower end of the sprayer (10). Nozzles (14) are fixedly installed at the lower ends of the shunt pipes (13), and a splash-proof plate (17) is fixedly installed at the rear end of the nozzles (14).

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