A low-nitrogen oxide generation plasma dry tail gas treatment device

Abstract

The application relates to the technical field of tail gas treatment, and discloses a low-nitrogen oxide generation plasma dry tail gas treatment equipment, which comprises a plasma dry treatment equipment main body, a temperature regulation mechanism is connected to the gas inlet end of the plasma dry treatment equipment main body, an oil mist interception mechanism is connected to the end of the temperature regulation mechanism away from the plasma dry treatment equipment main body, and the temperature regulation mechanism is used for reducing the temperature of tail gas. Through the design of the temperature regulation mechanism, the temperature of the tail gas can be reduced, and through the design of the oil mist interception mechanism, the oil mist in the tail gas can be intercepted. Through the design, the massive generation of nitrogen oxides can be effectively controlled from the source, the use defects of the original equipment can be completely improved, the tail gas purification quality can be stably ensured, the adverse effects of high temperature and oil mist on core components of the equipment can be avoided, the equipment operation environment can be optimized, and the stability and overall service life of equipment operation can be further improved.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment technology, specifically to a plasma dry exhaust gas treatment device with low nitrogen oxide generation. Background Technology

[0002] Plasma dry exhaust gas treatment equipment is an industrial environmental protection purification device developed based on low-temperature plasma technology. The equipment generates a large number of high-energy electrons, ions, and active free radicals through high-voltage electric field discharge. These active substances react violently with harmful pollutants in the exhaust gas, such as volatile organic compounds, odorous gases, nitrogen oxides, and sulfur oxides, gradually destroying the molecular structure of the pollutants and completely decomposing them, ultimately converting them into non-toxic and harmless conventional substances such as carbon dioxide and water. This equipment adopts a dry treatment process and features low operating energy consumption, small footprint, simple structure, and convenient daily maintenance. It is commonly used in various production scenarios for the purification and treatment of industrial exhaust gases and waste gases.

[0003] Existing conventional plasma dry exhaust gas treatment equipment generally lacks exhaust gas pretreatment functions. In actual industrial applications, the exhaust gas to be treated often has excessive temperature and oil mist content. When such gases directly enter the equipment for purification, they will cause the generation of a large amount of nitrogen oxides, adding harmful pollutants and disrupting the normal purification reaction process, ultimately severely reducing the overall treatment effect of the entire equipment. To address this, we propose a plasma dry exhaust gas treatment device with low nitrogen oxide generation. Summary of the Invention

[0004] The purpose of this invention is to provide a plasma dry exhaust gas treatment device with low nitrogen oxide generation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plasma dry exhaust gas treatment device with low nitrogen oxide generation, comprising a plasma dry treatment device body, an air inlet end of the plasma dry treatment device body connected to a temperature control mechanism, an oil mist interception mechanism connected to the end of the temperature control mechanism away from the plasma dry treatment device body, the temperature control mechanism being used to reduce the temperature of the exhaust gas, the oil mist interception mechanism being used to intercept oil mist inside the exhaust gas, and an exhaust end of the plasma dry treatment device body connected to a tail treatment mechanism; The temperature control mechanism includes a control pipe fixedly connected to the air inlet end of the main body of the plasma dry treatment equipment. An inner baffle is fixedly installed on the inner wall of the control pipe. A strip tube is fixedly installed on the inner wall of the inner baffle. A water inlet pipe is fixedly connected to the top of the strip tube. A water outlet pipe is fixedly connected to the bottom of the strip tube. A copper pipe is fixedly installed on the inner wall of the strip tube. A heat exchange fin is fixedly connected to the outer wall of the copper pipe.

[0006] Preferably, a hollow support is fixedly installed at the end of the copper tube, a rotating shaft is rotatably connected to the inner wall of the hollow support, a blade is fixedly installed on the outer wall of the rotating shaft near the end, a connecting strip is fixedly installed at the end of the rotating shaft away from the blade, and a scraper is provided on the connecting strip.

[0007] Preferably, the connecting strip has a T-shaped groove, and a movable strip is detachably connected to the inner cavity of the T-shaped groove. A bracket is fixedly installed on the top of the movable strip, and a slide rod is slidably connected to the inner wall of the bracket. A connecting plate is fixedly installed at one end of the slide rod, and the scraper is fixedly installed at the other end of the slide rod. An elastic element is fixedly installed between the connecting plate and the movable strip.

[0008] Preferably, a raised frame is fixedly installed on the top of the regulating pipe, and a cover plate is detachably connected to the inner cavity of the raised frame.

[0009] Preferably, the oil mist interception mechanism includes an interception pipe, which is fixedly connected to the end of the control pipe. A movable plate seat is detachably connected to the top of the interception pipe, and a metal wire mesh is fixedly installed on the movable plate seat. The metal wire mesh is located in the inner cavity of the interception pipe.

[0010] Preferably, a diversion pipe is fixedly installed on the top of the inner wall of the intercepting pipe, the side of the diversion pipe is provided with an inclined surface, a nozzle located at the inclined surface is fixedly connected to the outer wall of the diversion pipe, an inlet pipe is fixedly connected to the top of the diversion pipe, the top of the inlet pipe extends to the top of the intercepting pipe, and a guide plate is fixedly installed on the bottom of the inner wall of the intercepting pipe.

[0011] Preferably, a liquid storage tank is fixedly installed on the outer wall of the intercepting pipe, a pump is fixedly installed on the top of the liquid storage tank, the input pipe of the pump extends into the inner cavity of the liquid storage tank, the output pipe of the pump is fixedly connected to a drain device, a return pipe and an output working pipe are fixedly connected to the outer wall of the drain device, the return pipe is fixedly connected to the top of the liquid storage tank, and the output working pipe is connected to the inlet pipe.

[0012] Preferably, a through groove is provided on the outer wall of the drain device, a stepper motor is fixedly installed on the top of the drain device, the output shaft of the stepper motor is fixedly connected to a vertical shaft, and an arc-shaped gate is fixedly installed on the outer wall of the vertical shaft.

[0013] Preferably, the tail treatment mechanism includes an exhaust pipe, which is fixedly connected to the exhaust end of the main body of the plasma dry treatment equipment. A vertical frame is fixedly installed in the inner cavity of the exhaust pipe, and a support net is fixedly installed on both sides of the vertical frame. The inner cavity of the vertical frame is filled with a catalyst, and a protrusion is fixedly installed on the outer wall of the vertical frame. A strip cover is rotatably connected to the protrusion.

[0014] Preferably, a connecting block is fixedly installed at the end of the strip cover, the connecting block has a pin groove and a through hole, a support block is fixedly installed on the outer wall of the frame, a limit rod is slidably connected through the support block, a pin block is fixedly installed at the end of the limit rod, the pin block is movably inserted into the pin groove, and a spring is fixedly installed between the pin block and the support block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the design of a temperature control mechanism, allows cold water to flow through the inside of a strip tube, while exhaust gas flows through the inner cavity of a copper tube. Heat exchange occurs between the cold water and the exhaust gas, reducing its temperature. Furthermore, the oil mist interception mechanism intercepts oil mist within the exhaust gas. This design effectively curbs the generation of large amounts of nitrogen oxides at the source, thoroughly improving the shortcomings of existing equipment, ensuring stable exhaust gas purification quality, and preventing adverse effects of high temperatures and oil mist on the core components of the equipment. It also optimizes the equipment's operating environment and further enhances the stability and overall service life of the equipment. Through the design of the temperature control mechanism, the exhaust gas flows through the copper pipe and the hollow support component. The thrust generated by the flow pushes the blades, causing the blades to drive the rotating shaft to rotate. Then, the connecting strip and scraper strip rotate. During the rotation of the scraper strip, the inner wall of the copper pipe can be continuously scraped and cleaned to avoid the problem of dust easily adhering to the inner wall of the copper pipe, maintain the heat exchange rate of the copper pipe, and ensure the cooling effect on the exhaust gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the regulating pipe of the present invention; Figure 3 This is a schematic diagram of the structure of the copper tube and the hollow support component of the present invention; Figure 4 This is a schematic diagram illustrating the connection relationship between the connecting strip and the scraper strip of the present invention; Figure 5 This is a schematic diagram of the internal structure of the intercepting pipe of the present invention; Figure 6 This is a schematic diagram of the structure of the diversion tube of the present invention; Figure 7This is a schematic diagram of the top structure of the liquid storage tank of the present invention; Figure 8 This is a schematic diagram of the internal structure of the drainage device of the present invention; Figure 9 This is a schematic diagram of the internal structure of the exhaust pipe of the present invention; Figure 10 This is a schematic diagram of the overall structure of the connecting block and the support block of the present invention.

[0017] In the diagram: 1. Main body of the plasma dry treatment equipment; 2. Temperature control mechanism; 21. Control pipe; 211. Raised frame; 212. Cover plate; 22. Inner partition plate; 23. Strip pipe; 24. Water inlet pipe; 25. Water outlet pipe; 26. Copper pipe; 261. Heat exchange fins; 27. Hollowed-out support component; 28. Rotating shaft; 281. Blade; 29. ​​Connecting strip; 291. T-slot; 292. Movable strip; 293. Bracket; 294. Slide rod; 295. Connecting plate; 296. Elastic component; 297. Scraper; 3. Oil mist interception mechanism; 31. Interception pipe; 32. Movable plate base; 3 3. Wire mesh; 34. Guide plate; 35. Diverter pipe; 351. Inclined surface; 352. Nozzle; 353. Inlet pipe; 36. Storage tank; 37. Pump; 38. Drainage device; 381. Stepper motor; 382. Vertical shaft; 383. Arc-shaped gate; 384. Through groove; 39. Return pipe; 391. Working pipe; 4. Tail-end processing mechanism; 41. Exhaust pipe; 42. Vertical frame; 43. Support mesh; 44. Protrusion block; 45. Strip cover; 46. Connecting block; 47. Pin groove; 48. Through hole; 49. Support block; 491. Limiting rod; 492. Pin block; 493. Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-10 The present invention provides a technical solution: a plasma dry exhaust gas treatment device with low nitrogen oxide generation, including a plasma dry treatment device body 1, a temperature control mechanism 2 connected to the air inlet end of the plasma dry treatment device body 1, an oil mist interception mechanism 3 connected to the end of the temperature control mechanism 2 away from the plasma dry treatment device body 1, the temperature control mechanism 2 is used to reduce the temperature of the exhaust gas, the oil mist interception mechanism 3 is used to intercept the oil mist inside the exhaust gas, and a tail treatment mechanism 4 is connected to the exhaust end of the plasma dry treatment device body 1. The temperature control mechanism 2 includes a control pipe 21 fixedly connected to the air inlet end of the main body 1 of the plasma dry treatment equipment. An inner baffle 22 is fixedly installed on the inner wall of the control pipe 21. A strip pipe 23 is fixedly installed on the inner wall of the inner baffle 22. A water inlet pipe 24 is fixedly connected to the top of the strip pipe 23, and a water outlet pipe 25 is fixedly connected to the bottom of the strip pipe 23. A copper pipe 26 is fixedly installed on the inner wall of the strip pipe 23, and heat exchange fins 261 are fixedly connected to the outer wall of the copper pipe 26. The copper pipe 26 passes through the strip pipe 23. The inlet pipe 24 and outlet pipe 25 have the same specifications. When in use, the chiller (the chiller is an existing device and is not shown in the figure) is connected to the inlet pipe 24 and outlet pipe 25. Controlling the chiller allows the chilled water to flow through the inside of the strip pipe 23, and the exhaust gas will flow through the inner cavity of the copper pipe 26. Heat exchange occurs between the chilled water and the exhaust gas, reducing the temperature of the exhaust gas. High temperature will cause the nitrogen and oxygen in the exhaust gas to undergo an oxidation reaction, generating nitrogen oxides. This equipment can suppress this side reaction by cooling down in advance, reducing the generation of pollutants.

[0020] In a preferred embodiment, a perforated support member 27 is fixedly installed at the end of the copper tube 26. A rotating shaft 28 is rotatably connected to the inner wall of the perforated support member 27. A blade 281 is fixedly installed on the outer wall of the rotating shaft 28 near the end. A connecting strip 29 is fixedly installed at the end of the rotating shaft 28 away from the blade 281. A scraper 297 is provided on the connecting strip 29. During use, the exhaust gas flows through the copper tube 26 and the perforated support member 27. The thrust generated by the flow pushes the blade 281, causing the blade 281 to drive the rotating shaft 28 to rotate. Then, the connecting strip 29 and the scraper 297 are driven to rotate. During the rotation of the scraper 297, the inner wall of the copper tube 26 can be continuously scraped and cleaned to avoid the problem of dust easily adhering to the inner wall of the copper tube 26, maintain the heat exchange rate of the copper tube 26, and ensure the cooling effect on the exhaust gas.

[0021] In a preferred embodiment, a T-groove 291 is provided on the connecting strip 29. A movable strip 292 is detachably connected to the inner cavity of the T-groove 291. A bracket 293 is fixedly installed on the top of the movable strip 292. A sliding rod 294 is slidably connected to the inner wall of the bracket 293. A connecting plate 295 is fixedly installed at one end of the sliding rod 294, and a scraper 297 is fixedly installed at the other end of the sliding rod 294. An elastic element 296 is fixedly installed between the connecting plate 295 and the movable strip 292. The scraper 297 may be damaged after long-term use. When damaged, it can be replaced by loosening the bolts on the connecting strip 29 and then inserting and removing the movable strip 292 inside the T-groove 291 to replace the entire scraper 297. Then, the bolts on the connecting strip 29 are tightened. Through the elastic force of the elastic element 296, the scraper 297 can be tightly attached to the inner wall of the copper tube 26 to ensure the cleaning effect.

[0022] In the preferred embodiment, a raised frame 211 is fixedly installed on the top of the regulating pipe 21. A cover plate 212 is detachably connected to the inner cavity of the raised frame 211. The cover plate 212 is installed on the raised frame 211 by means of bolt connection, snap connection or other means. During maintenance, the cover plate 212 is removed from the raised frame 211, and the scraper 297 can be replaced and maintained as a whole.

[0023] In the preferred embodiment, the oil mist interception mechanism 3 includes an interception pipe 31, which is fixedly connected to the end of the control pipe 21. A movable plate seat 32 is detachably connected to the top of the interception pipe 31, and a metal wire mesh 33 is fixedly installed on the movable plate seat 32. The metal wire mesh 33 is located in the inner cavity of the interception pipe 31. During use, the exhaust gas will flow through the metal wire mesh 33. The metal wire mesh 33 can intercept the oil mist inside the exhaust gas. Oil mist can easily cause local abnormal discharge of equipment, generate instantaneous high temperature, and also trigger additional side reactions. This equipment can stabilize the operating conditions of the equipment by removing oil mist and avoid the additional generation of nitrogen oxides. The movable plate seat 32 is installed on the interception pipe 31 by bolt connection, snap connection, etc. During maintenance, the movable plate seat 32 can be completely disassembled for cleaning.

[0024] In a preferred embodiment, a diversion pipe 35 is fixedly installed on the top of the inner wall of the intercepting pipe 31. An inclined surface 351 is provided on the side of the diversion pipe 35. A nozzle 352 located on the inclined surface 351 is fixedly connected to the outer wall of the diversion pipe 35. An inlet pipe 353 is fixedly connected to the top of the diversion pipe 35. The top of the inlet pipe 353 extends to the top of the intercepting pipe 31. A guide plate 34 is fixedly installed on the bottom of the inner wall of the intercepting pipe 31. The inclined surface 351 is set in three groups, so that the three groups of nozzles 352 are respectively aimed at three metal wire meshes 33 at different heights. During the intervals of equipment use, the metal wire meshes 33 can be automatically cleaned. During cleaning, the cleaning liquid is injected from the inlet pipe 353. The cleaning liquid then passes through the diversion pipe 35 and is sprayed out from the nozzle 352, spraying onto the metal wire meshes 33, thus completing the automatic cleaning work. A solenoid valve is connected to the bottom of the intercepting pipe 31. During cleaning, the solenoid valve (not shown in the figure) is opened synchronously to discharge the sewage.

[0025] In a preferred embodiment, a storage tank 36 is fixedly installed on the outer wall of the intercepting pipe 31, and a pump 37 is fixedly installed on the top of the storage tank 36. The input pipe of the pump 37 extends into the inner cavity of the storage tank 36, and the output pipe of the pump 37 is fixedly connected to a drainer 38. A return pipe 39 and an output pipe working pipe 391 are fixedly connected to the outer wall of the drainer 38. The return pipe 39 is fixedly connected to the top of the storage tank 36, and the output pipe working pipe 391 is connected to the inlet pipe 353. The storage tank 36 can store cleaning fluid. By controlling the pump 37 to work, the cleaning fluid can be drawn out and then transported through the drainer 38 and the output pipe working pipe 391 to the inside of the diversion pipe 35.

[0026] In a preferred embodiment, a through groove 384 is provided on the outer wall of the diverter 38, and a stepper motor 381 is fixedly installed on the top of the diverter 38. The output shaft of the stepper motor 381 is fixedly connected to a vertical shaft 382, ​​and an arc-shaped gate 383 is fixedly installed on the outer wall of the vertical shaft 382. There are two through grooves 384, which correspond to the return pipe 39 and the output pipe working pipe 391, respectively. In the initial state, the arc-shaped gate 383 closes the through groove 384 of the return pipe 39. If the cleaning fluid is stored inside the storage tank 36 for a long time, before use, the stepper motor 381 is controlled to work, driving the vertical shaft 382 and the arc-shaped gate 383 to rotate, so that the arc-shaped gate 383 closes the through groove 384 of the output pipe working pipe 391. Thus, the cleaning fluid drawn by the pump 37 will flow back to the inside of the storage tank 36 through the diverter 38 and the return pipe 39, realizing internal circulation mixing and ensuring the effect of subsequent cleaning fluid use.

[0027] In a preferred embodiment, the tail-end treatment mechanism 4 includes an exhaust pipe 41, which is fixedly connected to the exhaust end of the plasma dry treatment equipment body 1. A frame 42 is fixedly installed in the inner cavity of the exhaust pipe 41, and support nets 43 are fixedly installed on both sides of the frame 42. The inner cavity of the frame 42 is filled with a catalyst, and a protrusion 44 is fixedly installed on the outer wall of the frame 42. A strip cover 45 is rotatably connected to the protrusion 44. During use, when the exhaust gas flows through the interior of the exhaust pipe 41, it passes through the support nets 43 and comes into contact with the catalyst. The catalyst is a perovskite catalyst, which has good low-temperature catalytic activity and can catalytically decompose the nitrogen oxides remaining in the exhaust gas after plasma treatment, while inhibiting the occurrence of subsequent side reactions, further reducing the nitrogen oxide content, and improving the exhaust gas purification effect. The catalyst can be replaced by rotating and opening / closing the strip cover 45 on the frame 42.

[0028] In a preferred embodiment, a connecting block 46 is fixedly installed at the end of the strip cover 45. The connecting block 46 has a pin groove 47 and a through hole 48. A support block 49 is fixedly installed on the outer wall of the frame 42. A limit rod 491 is slidably connected through the support block 49. A pin 492 is fixedly installed at the end of the limit rod 491. The pin 492 is movably inserted into the pin groove 47. A spring 493 is fixedly installed between the pin 492 and the support block 49. In the initial state, the spring force of the spring 493 can push the pin 492, causing the pin 492 to remain inserted in the pin groove 47, restricting the movement of the connecting block 46, thereby locking the strip cover 45. If it is necessary to open the strip cover 45, the pin 492 can be pushed manually. This design improves the convenience of locking or unlocking the strip cover 45.

[0029] Working principle: During use, exhaust gas is introduced from the end of the interception pipe 31. The metal wire mesh 33 can intercept the oil mist inside the exhaust gas. The exhaust gas then enters the interior of the control pipe 21, which controls the operation of the chiller. This allows the chilled water to flow through the interior of the strip pipe 23, and the exhaust gas will flow through the inner cavity of the copper pipe 26. Heat exchange will occur between the chilled water and the exhaust gas, reducing the temperature of the exhaust gas. The exhaust gas then enters the interior of the plasma dry treatment equipment body 1. The plasma dry treatment equipment body 1 treats the exhaust gas through the discharge of a high-voltage electric field. The treated exhaust gas is discharged through the exhaust pipe 41. The catalyst inside the frame 42 will further catalyze and decompose the exhaust gas. During maintenance, the cover plate 212 is removed, and the scraper 297 can be replaced as a whole; the pin block 492 is pushed, and the strip cover 45 can be opened to facilitate the replacement of the catalyst inside the frame 42; the pump 37 is controlled to work, and cleaning fluid can be output from the inlet pipe 353 to automatically clean the metal wire mesh 33, while the solenoid valve below the interception pipe 31 is controlled to open for sewage discharge.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma dry exhaust gas treatment device with low nitrogen oxide generation, comprising a plasma dry treatment device body (1), characterized in that: The air inlet of the plasma dry treatment equipment body (1) is connected to a temperature control mechanism (2), and the end of the temperature control mechanism (2) away from the plasma dry treatment equipment body (1) is connected to an oil mist interception mechanism (3). The temperature control mechanism (2) is used to reduce the temperature of the exhaust gas, and the oil mist interception mechanism (3) is used to intercept the oil mist inside the exhaust gas. The exhaust end of the plasma dry treatment equipment body (1) is connected to a tail treatment mechanism (4). The temperature control mechanism (2) includes a control pipe (21) fixedly connected to the air inlet end of the main body (1) of the plasma dry treatment equipment. An inner partition (22) is fixedly installed on the inner wall of the control pipe (21). A strip pipe (23) is fixedly installed on the inner wall of the inner partition (22). A water inlet pipe (24) is fixedly connected to the top of the strip pipe (23). A water outlet pipe (25) is fixedly connected to the bottom of the strip pipe (23). A copper pipe (26) is fixedly installed on the inner wall of the strip pipe (23). A heat exchange fin (261) is fixedly connected to the outer wall of the copper pipe (26).

2. The plasma dry tail gas treatment equipment with low nitrogen oxide generation according to claim 1, characterized in that: A hollow support member (27) is fixedly installed at the end of the copper tube (26). A rotating shaft (28) is rotatably connected to the inner wall of the hollow support member (27). A blade (281) is fixedly installed on the outer wall of the rotating shaft (28) near the end. A connecting strip (29) is fixedly installed at the end of the rotating shaft (28) away from the blade (281). A scraper (297) is provided on the connecting strip (29).

3. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 2, characterized in that: The connecting strip (29) has a T-shaped groove (291), and a movable strip (292) is detachably connected to the inner cavity of the T-shaped groove (291). A bracket (293) is fixedly installed on the top of the movable strip (292), and a slide rod (294) is slidably connected to the inner wall of the bracket (293). A connecting plate (295) is fixedly installed at one end of the slide rod (294), and a scraper (297) is fixedly installed at the other end of the slide rod (294). An elastic element (296) is fixedly installed between the connecting plate (295) and the movable strip (292).

4. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 3, characterized in that: A raised frame (211) is fixedly installed on the top of the regulating pipe (21), and a cover plate (212) is detachably connected to the inner cavity of the raised frame (211).

5. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 1, characterized in that: The oil mist interception mechanism (3) includes an interception pipe (31), which is fixedly connected to the end of the control pipe (21). The top of the interception pipe (31) is detachably connected to a movable plate seat (32), and a metal wire mesh (33) is fixedly installed on the movable plate seat (32). The metal wire mesh (33) is located in the inner cavity of the interception pipe (31).

6. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 5, characterized in that: A diversion pipe (35) is fixedly installed on the top of the inner wall of the intercepting pipe (31). An inclined surface (351) is provided on the side of the diversion pipe (35). A nozzle (352) located on the inclined surface (351) is fixedly connected to the outer wall of the diversion pipe (35). An inlet pipe (353) is fixedly connected to the top of the diversion pipe (35). The top of the inlet pipe (353) extends to the top of the intercepting pipe (31). A guide plate (34) is fixedly installed on the bottom of the inner wall of the intercepting pipe (31).

7. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 6, characterized in that: A storage tank (36) is fixedly installed on the outer wall of the intercepting pipe (31). A pump (37) is fixedly installed on the top of the storage tank (36). The input pipe of the pump (37) extends into the inner cavity of the storage tank (36). A drainer (38) is fixedly connected to the output pipe of the pump (37). A return pipe (39) and an output pipe working pipe (391) are fixedly connected to the outer wall of the drainer (38). The return pipe (39) is fixedly connected to the top of the storage tank (36). The output pipe working pipe (391) is connected to the inlet pipe (353).

8. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 7, characterized in that: A through groove (384) is provided on the outer wall of the drainer (38), a stepper motor (381) is fixedly installed on the top of the drainer (38), the output shaft of the stepper motor (381) is fixedly connected to a vertical shaft (382), and an arc-shaped gate (383) is fixedly installed on the outer wall of the vertical shaft (382).

9. The plasma dry tail gas treatment equipment for low nitrogen oxide generation according to claim 1, characterized in that: The tail treatment mechanism (4) includes an exhaust pipe (41), which is fixedly connected to the exhaust end of the plasma dry treatment equipment body (1). A vertical frame (42) is fixedly installed in the inner cavity of the exhaust pipe (41). Support nets (43) are fixedly installed on both sides of the vertical frame (42). The inner cavity of the vertical frame (42) is filled with a catalyst. A protrusion (44) is fixedly installed on the outer wall of the vertical frame (42). A strip cover (45) is rotatably connected to the protrusion (44).

10. A plasma dry tail gas treatment device for low nitrogen oxide generation according to claim 9, characterized in that: A connecting block (46) is fixedly installed at the end of the strip cover (45). The connecting block (46) has a pin groove (47) and a through hole (48). A support block (49) is fixedly installed on the outer wall of the frame (42). A limit rod (491) is slidably connected through the support block (49). A pin block (492) is fixedly installed at the end of the limit rod (491). The pin block (492) is movably inserted into the pin groove (47). A spring (493) is fixedly installed between the pin block (492) and the support block (49).

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