A silicon carbide smelting waste gas collecting, spraying, washing and purifying device

Abstract

The present application relates to the technical fields of silicon carbide smelting waste gas treatment, and discloses a silicon carbide smelting waste gas collecting, spraying, washing and purifying device, which comprises a tower cylinder, a sealing cover connected to the upper end of the tower cylinder through bolts, a motor and an air inlet pipe connected to the upper end of the sealing cover, an air outlet pipe connected to the lower end of the tower cylinder, a sieve plate and a ring rail fixedly connected to the inner wall of the tower cylinder, the ring rail being arranged directly above the sieve plate, a scraping arm slidingly connected to the ring rail, a spraying and washing mechanism arranged on one side of the scraping arm and used for cooperating with the scraping arm to spray and wash the inner wall of the tower cylinder, a cylinder jackedly connected to the output end of the motor through the sealing cover, a poking rod connected to the telescopic end of the cylinder and used for driving the scraping arm to move on the ring rail, and a slot opened in the sieve plate and used for collecting the dust falling after the spraying and washing of the inner wall of the tower cylinder. The present application realizes the collaborative operation of scraping and spraying and washing of the inner wall of the tower cylinder, effectively improves the dust cleaning effect of the inner wall of the tower cylinder, avoids the secondary flying of the dust, and solves the problem of poor cleaning effect of the single cleaning mode of the existing device.

Description

Technical Field

[0001] This invention relates to the field of silicon carbide smelting waste gas treatment technology, and in particular to a silicon carbide smelting waste gas collection, spraying, and purification device. Background Technology

[0002] The silicon carbide smelting process generates a large amount of high-temperature waste gas containing silicon carbide dust. Existing technologies mostly use tower-type filtration devices to purify this type of waste gas. By trapping dust through structures such as sieve plates and filter screens, the filtered gas is then discharged, which basically achieves dust separation and emission compliance of the waste gas.

[0003] Existing silicon carbide smelting exhaust gas purification devices are prone to dust accumulation on the cylinder walls. The existing cleaning structures are mostly single scraping or fixed spraying, which have poor cleaning effects and easily cause secondary dust re-entrainment. At the same time, the opening and closing of the screen plate slots are mostly manually controlled and cannot be linked with the cleaning process, resulting in low dust collection efficiency. In addition, some devices lack effective sealing of the spray nozzles, which are easily blocked by dust, leading to spraying failure. The overall automation level and operational stability of the devices are difficult to adapt to the continuous production requirements of silicon carbide smelting.

[0004] Based on this, a device for collecting, washing and purifying waste gas from silicon carbide smelting is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a silicon carbide smelting waste gas collection, spraying, and purification device in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A silicon carbide smelting waste gas collection, spraying and purification device includes a tower. The upper end of the tower is bolted to a sealing cover. The upper end of the sealing cover is connected to a motor and an air inlet pipe. The lower end of the tower is connected to an exhaust pipe. A screen plate and a ring rail are fixedly connected to the inner wall of the tower. The ring rail is located directly above the screen plate. A scraper arm is slidably connected to the ring rail. A spraying mechanism is provided on one side of the scraper arm for cooperating with the scraper arm to spray and clean the inner wall of the tower. The motor output end is connected to a cylinder through a sealing cover. The telescopic end of the cylinder is connected to a lever for moving the scraper arm on the ring track. A slot is opened on the screen plate for collecting dust that falls after the cylinder wall is sprayed. A baffle is slidably connected to the lower end of the screen plate for sealing the slot. A transmission component for controlling the opening and closing of the slot is connected to one side of the baffle.

[0007] Preferably, the lower end of the tower is fixedly connected to multiple sets of supports, which are arranged around the outside of the exhaust pipe.

[0008] Preferably, a fixing frame is fixedly connected to the center of the lower end of the sieve plate, and the other end of the fixing frame is fixedly connected to the inner wall of the tower.

[0009] Preferably, a groove is provided on one side of the scraper arm, and the scraper arm is slidably connected to the ring rail through the groove.

[0010] Preferably, the spraying mechanism includes a cleaning pipe, which is fixedly connected to one side of the scraper arm. Multiple nozzles are equidistantly connected to one side of the cleaning pipe. The upper end of the cleaning pipe is connected to the pump body outside the tower through an external delivery pipe. A button for controlling the operation of the pump body is connected to one side of the cleaning pipe. Two sets of sliding rods are slidably connected to one side of the cleaning tube. One sliding rod is connected to a pressing block and an inclined plate at both ends, and the other sliding rod is connected to a return spring at one end.

[0011] Preferably, a sleeve block is fixedly connected to one side of the cleaning tube, and a sliding rod is slidably connected through the sleeve block.

[0012] Preferably, the inclined plate is fixedly connected to a hinge seat on the side facing the nozzle, and the hinge seat is rotatably connected to a deflection plate via a torsion spring. The deflection plate is equipped with a magnetic suction plate that attracts the nozzle.

[0013] Preferably, the transmission component includes a lifting seat, the upper end of which is rotatably connected to one end of the cylinder extension and retraction end. Two traction rods are symmetrically connected to the outside of the lifting seat. A torsion spring is connected to the connection between the traction rod and the lifting seat. The other end of the traction rod is rotatably connected to a baffle.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. This application adopts a structure that links the scraping arm and the spraying mechanism, thereby achieving coordinated operation of scraping and spraying the inner wall of the tower, effectively improving the dust cleaning effect of the tower wall, avoiding secondary dust re-entrainment, and solving the problem of poor cleaning effect of the existing single cleaning method.

[0015] 2. This application achieves automatic linkage between the opening and closing of the screen plate slot and the cleaning process by adopting a cylinder-driven baffle opening and closing transmission component, thereby improving dust collection efficiency. At the same time, the magnetic suction plate effectively prevents dust from clogging the nozzles, ensuring stable spraying function and solving the problems of low automation and easy nozzle clogging in existing devices. Attached Figure Description

[0016] Figure 1 A schematic diagram of the purification device provided according to an embodiment of the present invention is shown; Figure 2 A bottom view of the purification device provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of the ring rail connection provided according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the scraper arm connection provided according to an embodiment of the present invention is shown; Figure 5A schematic diagram of the structure of the fixing frame connection provided according to an embodiment of the present invention is shown; Figure 6 An exploded structural diagram of the lifting seat connection provided according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the chute opening provided according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the structure of the cleaning tube connection provided according to an embodiment of the present invention is shown; Figure 9 An exploded structural diagram of the slide bar connection provided according to an embodiment of the present invention is shown; Figure 10 An exploded structural diagram of the inclined plate connection provided according to an embodiment of the present invention is shown; Figure 11 An appendix provided according to an embodiment of the present invention is shown. Figure 8 Enlarged structural diagram at point A; Figure 12 An appendix provided according to an embodiment of the present invention is shown. Figure 10 A magnified structural diagram at point B in the middle.

[0017] Legend: 1. Tower; 2. Support; 3. Sealing cover; 4. Motor; 5. Inlet pipe; 6. Exhaust pipe; 7. Ring rail; 8. Cylinder; 9. Actuating lever; 10. Scraper arm; 11. Screen plate; 12. Fixing frame; 13. Lifting seat; 14. Traction rod; 15. Baffle; 16. Slide groove; 17. Cleaning pipe; 18. Inclined plate; 19. Slide rod; 20. Nozzle; 21. Sleeve block; 22. Button; 23. Pressing block; 24. Return spring; 25. Hinge seat; 26. Deflection plate; 27. Magnetic suction plate. 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 1-12 The present invention provides a technical solution: A silicon carbide smelting waste gas collection, spraying, and purification device includes a tower 1. A sealing cover 3 is bolted to the upper end of the tower 1. A sealing gasket is provided on the connection surface between the sealing cover 3 and the tower 1 to improve the overall sealing performance of the device. A motor 4 and an air inlet pipe 5 are connected to the upper end of the sealing cover 3. An exhaust pipe 6 is connected to the lower end of the tower 1. An anti-backflow wind cap is provided at the outlet of the exhaust pipe 6 to prevent external airflow from interfering with the purification process. A sieve plate 11 and a ring rail 7 are fixedly connected to the inner wall of the tower 1. The sieve plate 11 is made of corrosion-resistant silicon carbide material with uniform aperture to meet dust interception requirements. The ring rail 7 is located directly above the sieve plate 11. A scraper arm 10 is slidably connected to the ring rail 7. A spraying mechanism is provided on one side of the scraper arm 10 to cooperate with the scraper arm 10 to spray and clean the inner wall of the tower 1. The two sides of the scraper arm 10 are inclined to improve the dust scraping effect. When it moves along the ring rail 7, the scraper arm 10 can perform dust scraping operations on the inner side of the tower 1. The output end of motor 4 is connected to cylinder 8 through sealing cover 3. A sealing structure is set at the connection between the output end of motor 4 and sealing cover 3. The output end of motor 4 and the non-telescopic end of cylinder 8 are connected by U-shaped iron wire to ensure synchronous rotation and facilitate disassembly and maintenance. The telescopic end of cylinder 8 is connected to a lever 9 for driving scraper arm 10 to move on ring rail 7. The screen plate 11 has slots for collecting dust falling after the cylinder wall is sprayed. The edges of the slots are rounded to avoid dust accumulation dead corners. There are two slots, which are symmetrically set on both sides of screen plate 11. The lower end of screen plate 11 is slidably connected to baffle 15 for sealing the slots. The surface of baffle 15 is covered with a wear-resistant rubber layer to improve the sealing effect. A transmission component for controlling the opening and closing of the slots is connected to one side of baffle 15.

[0020] This device is designed to clean only the inner wall of the tower 1, without a cleaning structure for the sieve plate 11. Since the sieve plate 11 mainly serves to trap and guide the dust settling, the dust on its surface can be collected naturally into the two side slots with the spray water flow. It can meet the purification and dust removal requirements without additional cleaning, and at the same time, it can simplify the structure and reduce the failure rate. In order to improve the water flow guiding effect, the upper surface of the sieve plate 11 can be designed as a raised conical structure.

[0021] Specifically, such as Figure 2 As shown, multiple sets of brackets 2 are fixedly connected to the lower end of the tower 1. Each set of brackets 2 is equipped with adjustable anchor bolts at the bottom to adapt to the flatness requirements of different installation grounds. The multiple sets of brackets 2 are arranged around the outside of the exhaust pipe 6.

[0022] Specifically, such as Figure 5 As shown, a fixing frame 12 is fixedly connected to the center of the lower end of the sieve plate 11. The fixing frame 12 is made of high-strength carbon steel welded and the surface is treated with anti-corrosion. The other end of the fixing frame 12 is fixedly connected to the inner wall of the tower 1. The fixing frame 12 further ensures the firmness of the sieve plate 11 connected to the inner wall of the tower 1.

[0023] Specifically, such as Figure 4 and Figure 7 As shown, a groove 16 is provided on one side of the scraper arm 10. The scraper arm 10 is slidably connected to the ring rail 7 through the groove 16. The inner wall of the groove 16 is inlaid with a wear-resistant bushing to reduce sliding friction resistance, improve the stability of the rotation and movement of the scraper arm 10, and ensure that the dust on the inner wall of the tower 1 can be scraped efficiently.

[0024] Specifically, such as Figure 8 , Figure 9 , Figure 11 and Figure 12 As shown, the spraying mechanism includes a cleaning pipe 17, which is fixedly connected to one side of the scraper arm 10. Multiple nozzles 20 are equidistantly connected to one side of the cleaning pipe 17. The nozzles 20 adopt a fan-shaped atomizing nozzle to ensure uniform water spray coverage. The nozzles 20 are made of metal material that can attract each other with the magnetic plate 27. The upper end of the cleaning pipe 17 is connected to the pump body outside the tower 1 through an external delivery pipe. The delivery pipe is connected through the sealing cover 3, and the structure at the through point is sealed. The external delivery pipe is made of high temperature and corrosion resistant flexible hose, which is suitable for the movement and vibration conditions of the device. Since the scraper arm 10 alternates between forward and reverse rotation, there is no need to worry about the twisting and tangling of the delivery pipe. A button 22 for controlling the operation of the pump body is connected to one side of the cleaning pipe 17. When the button 22 is pressed, the pump body starts to operate. The structure of the pump body is existing technology, so it will not be described in detail. Two sets of sliding rods 19 are slidably connected to one side of the cleaning tube 17. One sliding rod 19 is connected to a pressing block 23 and an inclined plate 18 at both ends, respectively. The other sliding rod 19 is connected to a return spring 24 at one end. The return spring 24 is a stainless steel compression spring to ensure long-term elastic stability. The sliding rod 19 connected to the pressing block 23 is positioned directly above the other sliding rod 19. When one end of the sliding rod 19 is not pressed by the toggle rod 9, the return spring 24 can drive the inclined plate 18 to return to its original position. This ensures that the inclined plate 18 drives the magnetic plate 27 to approach the nozzle 20, allowing the magnetic plate 27 to re-adhere to the nozzle 20, thus ensuring the structural sealing of the nozzle 20.

[0025] Specifically, such as Figure 11 As shown, a sleeve block 21 is fixedly connected to one side of the cleaning tube 17, and the slide rod 19 is slidably connected to the sleeve block 21. The sleeve block 21 limits the slide rod 19 to ensure the stability of the horizontal movement of the inclined plate 18.

[0026] Specifically, such as Figure 10 and Figure 12As shown, a hinge seat 25 is fixedly connected to the inclined plate 18 facing the nozzle 20. The hinge seat 25 is rotatably connected to a deflection plate 26 via a torsion spring. The surface of the deflection plate 26 is treated with a hydrophobic coating to prevent water from adhering and affecting the spray direction. A magnetic suction plate 27 that attracts the nozzle 20 is mounted on the deflection plate 26. Only when the magnetic suction plate 27 is moved away from the nozzle 20 by the inclined plate 18 will the magnetic suction plate 27 deflect away from the nozzle 20 under the torsion spring. When the magnetic suction plate 27 is close enough to the nozzle 20, the magnetic force can stably attract and abut the magnetic suction plate 27 against the nozzle 20, thus sealing the nozzle 20.

[0027] Specifically, such as Figure 6 As shown, the transmission component includes a lifting seat 13. The upper end of the lifting seat 13 is rotatably connected to one end of the telescopic end of the cylinder 8. The lifting seat 13 itself cannot rotate, but can only move up and down. Its rotatable connection is relative to the cylinder 8. Two traction rods 14 are symmetrically connected to the outside of the lifting seat 13. A torsion spring is connected to the connection between the traction rod 14 and the lifting seat 13. The other end of the traction rod 14 is rotatably connected to the baffle 15. The torsion spring can drive the traction rod 14 to deflect in the vertical direction, ensuring that the movement of the baffle 15 towards each other is stable and avoiding the structural jamming problem that may occur if the lifting seat 13 pulls the baffle 15 towards each other.

[0028] In summary, the silicon carbide smelting waste gas collection, spraying, and purification device provided in this embodiment targets the high-temperature waste gas containing silicon carbide dust and harmful gases generated during the silicon carbide smelting process. The device operates in stages according to the core steps of waste gas filtration, inner wall cleaning, dust storage, spraying and purification, scraping linkage, and tail gas emission. The specific process is as follows: The exhaust gas enters the tower 1 from top to bottom through the inlet pipe 5. It first undergoes preliminary filtration through the sieve plate 11. Larger silicon carbide dust particles in the exhaust gas are trapped by the sieve plate 11 and adhere to the inner wall of the tower 1 above the sieve plate 11. The filtered clean gas is discharged through the exhaust pipe 6, completing the preliminary purification. During the exhaust gas purification process, dust continues to adhere to the inner wall of the tower 1. If it is not cleaned in time, it will cause equipment blockage and reduce purification efficiency. Therefore, the inner wall cleaning process needs to be started simultaneously.

[0029] After the device is started, the cleaning preparation action is performed first. The cylinder 8 extends to its maximum stroke, driving the lifting seat 13 to descend synchronously. The lifting seat 13 pulls the baffles 15 on both sides closer to each other through the traction rod 14, so that the slots on the screen plate 11 change from the blocked state to the open state, reserving a channel for the subsequent collection and discharge of dust and flushing water. Then the motor 4 starts in a forward and reverse alternating mode. The output end of the motor 4 is connected to the non-extension end of the cylinder 8 to achieve synchronous rotation and facilitate disassembly and maintenance. The cyclic operation mode of the motor 4 rotating one revolution forward and then one revolution in reverse is a mature existing technology. This type of motor 4 is widely used in automated production lines, mechanical transmission systems and other scenarios. It has the characteristics of rapid forward and reverse switching, stable operation, and built-in overload and limit protection, which can meet the frequent start-stop and forward and reverse operation needs of industrial sites.

[0030] The rotation of motor 4 drives cylinder 8 to rotate synchronously. The lever 9 at the extension end of cylinder 8 moves in a circular motion with cylinder 8. When cylinder 8 extends to its maximum distance and the slot is fully open, lever 9 descends to its lowest point and is on the same horizontal plane as slide bar 19. At this time, lever 9 abuts against and presses slide bar 19 to slide on sleeve block 21. Return spring 24 is compressed. Inclined plate 18 drives deflection plate 26 to move away from nozzle 20. Magnetic suction plate 27 separates from nozzle 20. Torsion spring on deflection plate 26 drives it to deflect to one side of inclined plate 18, so that the water spray channel of nozzle 20 is fully opened. At the same time, pressing block 23 on slide bar 19 approaches button 22 and triggers button 22, starting the pump body on the outside of tower 1. Clean water enters cleaning pipe 17 through external delivery pipe and is then evenly sprayed onto the inner wall of tower 1 through multiple nozzles 20 to wash away the attached dust.

[0031] At the same time, as the motor 4 drives the cylinder 8 to rotate, the lever 9 on one side of the cylinder 8's telescopic end moves the scraper arm 10 to make a circular motion along the ring rail 7. The scraper arm 10 slides smoothly on the ring rail 7 through the slide groove 16, ensuring a stable motion trajectory. The cleaning pipe 17 on one side of the scraper arm 10 moves synchronously with the scraper arm 10. The water flow sprayed from the nozzle 20 is precisely sprayed onto the inner wall area of ​​the tower 1 corresponding to the movement trajectory of the scraper arm 10 under the guidance of the deflection plate 26. This forms a linkage with the mechanical scraping action of the scraper arm 10. The water flow rinsing and scraping work together to thoroughly clean the attached dust onto the surface of the screen plate 11, improving the cleaning effect.

[0032] When motor 4 reverses, lever 9 separates from slide bar 19, slide bar 19 resets under the elastic force of return spring 24, pressing block 23 separates from button 22, pump body stops water supply, and nozzle 20 stops spraying water; magnetic plate 27 re-attaches to nozzle 20 under magnetic attraction, sealing and blocking nozzle 20 to prevent dust and impurities from entering the nozzle 20 during exhaust gas purification and causing blockage, ensuring long-term stable operation of nozzle 20; at this time, scraper arm 10 still moves in a circle along ring rail 7, relying only on mechanical scraping to clean the inner wall of tower 1, avoiding secondary dust re-entrainment caused by water spraying, and realizing orderly switching between cleaning and dust removal.

[0033] After cleaning, the dust mixes with the flushing water and falls into the bottom of the tower 1 through the slot of the screen plate 11. When the cylinder 8 retracts, the lifting seat 13 rises, and the traction rod 14 pushes the baffles 15 on both sides away from each other, resealing the slot of the screen plate 11 to prevent unpurified exhaust gas from leaking directly from the slot and to ensure purification efficiency. The wastewater mixed with dust gathers at the bottom of the tower 1 and is finally discharged through the exhaust pipe 6 into the subsequent wastewater treatment system, realizing the centralized recovery and harmless treatment of dust.

[0034] During operation, motor 4 continuously operates in alternating forward and reverse modes, achieving cyclical switching between scraping and spraying and pure scraping. That is, scraping and spraying are completed when rotating forward, and only scraping is performed when rotating in reverse. This ensures the continuous cleanliness of the inner wall of tower 1 while avoiding waste of water and energy. The fixed frame 12 below the screen plate 11 provides stable support for the screen plate 11, the ring rail 7 provides reliable motion guidance for the scraper arm 10, and multiple sets of brackets 2 provide stable support for tower 1, ensuring stable operation of the device under harsh conditions of high temperature and high dust. The connections of various components adopt multiple methods such as bolt connection, snap-fit, and sliding connection. The structure is detachable and easy to maintain, meeting the actual needs of industrial equipment maintenance.

[0035] The entire operation process integrates exhaust gas filtration, internal wall cleaning, dust collection, and tail gas purification. Through the synergistic effect of mechanical scraping and spraying, it effectively solves the problems of dust adhesion and equipment blockage in silicon carbide smelting exhaust gas. With the precise control of the forward and reverse motor 4 and the opening and closing adjustment of the baffle 15, it achieves efficient temporary storage and emission of dust, ultimately ensuring that the purified tail gas meets emission standards and satisfies the environmental protection requirements of industrial production and the stability requirements of equipment operation.

[0036] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A silicon carbide smelting waste gas collection, scrubbing, and purification device, comprising a tower (1), characterized in that, The upper end of the tower (1) is connected to a sealing cover (3) by bolts. The upper end of the sealing cover (3) is connected to a motor (4) and an air inlet pipe (5). The lower end of the tower (1) is connected to an exhaust pipe (6). The inner wall of the tower (1) is fixedly connected to a sieve plate (11) and a ring rail (7). The ring rail (7) is located directly above the sieve plate (11). A scraper arm (10) is slidably connected on the ring rail (7). A spraying mechanism is provided on one side of the scraper arm (10) for cooperating with the scraper arm (10) to spray and clean the inner wall of the tower (1). The output end of the motor (4) is connected to the cylinder (8) through the sealing cover (3). The telescopic end of the cylinder (8) is connected to the lever (9) which is used to drive the scraper arm (10) to move on the ring rail (7). The sieve plate (11) is opened to collect the dust that falls after the cylinder wall is sprayed. The lower end of the sieve plate (11) is slidably connected to the baffle (15) which is used to seal the sieve. A transmission component is connected to one side of the baffle (15) to control the opening and closing of the sieve.

2. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 1, characterized in that, The lower end of the tower (1) is fixedly connected to multiple sets of brackets (2), which are arranged around the outside of the exhaust pipe (6).

3. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 1, characterized in that, A fixing frame (12) is fixedly connected at the center of the lower end of the sieve plate (11), and the other end of the fixing frame (12) is fixedly connected to the inner wall of the tower (1).

4. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 1, characterized in that, The scraper arm (10) has a groove (16) on one side, and the scraper arm (10) is slidably connected to the ring rail (7) through the groove (16).

5. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 1, characterized in that, The spraying mechanism includes a cleaning pipe (17), which is fixedly connected to one side of the scraper arm (10). Multiple nozzles (20) are equidistantly connected to one side of the cleaning pipe (17). The upper end of the cleaning pipe (17) is connected to the pump body outside the tower (1) through an external delivery pipe. A button (22) for controlling the operation of the pump body is connected to one side of the cleaning pipe (17). Two sets of slide rods (19) are slidably connected to one side of the cleaning tube (17). One slide rod (19) is connected to a pressing block (23) and an inclined plate (18) at both ends, and the other slide rod (19) is connected to a return spring (24) at one end.

6. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 5, characterized in that, A sleeve (21) is fixedly connected to one side of the cleaning tube (17), and a slide rod (19) is slidably connected to the sleeve (21).

7. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 5, characterized in that, The inclined plate (18) is fixedly connected to the hinge seat (25) on the side facing the nozzle (20). The hinge seat (25) is rotatably connected to the deflection plate (26) through a torsion spring. The deflection plate (26) is equipped with a magnetic suction plate (27) that attracts the nozzle (20).

8. The silicon carbide smelting waste gas collection, spraying, and purification device according to claim 1, characterized in that, The transmission component includes a lifting seat (13), the upper end of which is rotatably connected to one end of the telescopic end of the cylinder (8). Two traction rods (14) are symmetrically connected to the outside of the lifting seat (13). A torsion spring is connected at the connection between the traction rod (14) and the lifting seat (13). The other end of the traction rod (14) is rotatably connected to the baffle (15).

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