Automatic cleaning device for trifluoromethylaniline rectification kettle

Abstract

The utility model discloses trifluoromethylaniline rectifying kettle automatic cleaning device relates to rectifying kettle automatic cleaning technical field, the utility model discloses a rectifying kettle body, the top fixed mounting of rectifying kettle body has the motor, the output fixed mounting of motor has the rotary rod, and the bottom of rotary rod is equipped with the water storage hole, and the bottom of rotary rod and located inside the water storage hole rotatory mounting has the inlet pipe, and the outside circumference equidistance fixed mounting of rotary rod has three water outlet pipes no.

Description

Technical Field

[0001] This utility model relates to the field of automatic cleaning technology for distillation kettles, specifically to an automatic cleaning device for trifluoromethylaniline distillation kettles. Background Technology

[0002] In the chemical production field, trifluoromethylaniline, as an important organic synthesis intermediate, is widely used in the production processes of pharmaceuticals, pesticides, dyes, and other industries. Its preparation often requires purification through distillation. As the core equipment in this process, the distillation vessel, if not cleaned after long-term operation, will directly affect the purification efficiency and product quality of trifluoromethylaniline. Therefore, regular cleaning of the distillation vessel is one of the key aspects to ensure stable production.

[0003] However, current cleaning methods for trifluoromethylaniline distillation vessels still have significant shortcomings. Because trifluoromethylaniline tends to remain inside the equipment during distillation, and existing cleaning methods are relatively simple, cleaning the inner wall and bottom wall of the distillation vessel only involves simple washing and rinsing, which results in some stubborn impurities not being effectively removed. This requires additional cleaning with external equipment, increasing maintenance costs. In addition, existing trifluoromethylaniline distillation vessels cannot be cleaned immediately after distillation, which easily leads to scale formation on the walls. At the same time, manual or traditional cleaning methods are inefficient and labor-intensive, making it difficult to meet the requirements of industrial continuous production for equipment cleanliness and cleaning efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an automatic cleaning device for trifluoromethyl aniline distillation kettles. This device has the advantages of efficiently and thoroughly cleaning the inner wall and bottom of the distillation kettle without requiring extensive manual labor and providing stable cleaning results. This solves the problems of incomplete cleaning of the inner wall and bottom, low efficiency, high labor intensity, and impact on product purity and equipment lifespan caused by existing trifluoromethyl aniline distillation kettle cleaning methods.

[0005] To achieve the above objectives, this utility model employs the following technical solution: an automatic cleaning device for a trifluoromethylaniline distillation kettle, comprising a distillation kettle body, a motor fixedly mounted on the top of the distillation kettle body, a rotating rod fixedly mounted on the output end of the motor, a water storage hole at the bottom end of the rotating rod, a water inlet pipe rotatably mounted at the bottom end of the rotating rod and inside the water storage hole, three outlet pipes (I) fixedly mounted at equal intervals on the outer circumference of the rotating rod, an outlet pipe (II) movably mounted inside the outlet pipe (I), a limit ring fixedly mounted on the outer side of one end of the outlet pipe (II) movably mounted inside the outlet pipe (I), a sealing ring fixedly mounted on the outer side of the limit ring, three cleaning components for cleaning the inner wall and bottom of the distillation kettle body equidistantly arranged on the outer circumference of the rotating rod, and two reset components symmetrically arranged axially on the outer side of the rotating rod, the reset components working in conjunction with the cleaning components, the cleaning components consisting of a guide rod and an arc-shaped mounting plate.

[0006] As a preferred embodiment of this utility model, the cleaning assembly includes two guide rods, which are symmetrically fixedly installed on the outside of the rotating rod along the axial direction, and the top of the guide rods is provided with guide grooves.

[0007] As a preferred embodiment of this utility model, the cleaning assembly further includes two L-shaped mounting rods, which are movably mounted on the outside of the guide rod. The top of the L-shaped mounting rod is provided with a movable groove, and an arc-shaped mounting plate is fixedly mounted on the other end of the L-shaped mounting rod. Scrapers are fixedly mounted on the outside of the two arc-shaped mounting plates, and the scrapers are movably sleeved inside the guide groove.

[0008] As a preferred technical solution of this utility model, the cleaning component further includes two water supply pipes, which are respectively fixedly installed at both ends of the arc-shaped mounting plate. A three-way pipe is fixedly installed between the two water supply pipes. The inlet end of the three-way pipe is fixedly installed with one end of the outlet pipe. Several nozzles are fixedly installed equidistantly along the axial direction on the outer side of the water supply pipes.

[0009] As a preferred embodiment of this utility model, the cleaning assembly further includes a connecting rod, which is fixedly installed on the outside of the rotating rod. An arc-shaped scraper is fixedly installed at the other end of the connecting rod, and the arc-shaped scraper is adapted to the arc shape of the bottom of the distillation vessel body.

[0010] As a preferred embodiment of this utility model, a support plate is fixedly installed inside the nozzle, a first spring is fixedly installed on the side of the support plate near the nozzle, a T-shaped sealing plug is movably sleeved inside the nozzle, and the other end of the first spring is fixedly installed with one end of the T-shaped sealing plug.

[0011] As a preferred embodiment of this utility model, the reset assembly includes a fixed ring, which is fixedly installed on the outer side of the rotating rod near one end. A second spring is fixedly installed at the bottom of the fixed ring, and a movable ring is fixedly installed at the bottom end of the second spring. The movable ring is movably sleeved on the outer side of the rotating rod, and three movable grooves are equidistantly formed on the bottom circumference of the movable ring.

[0012] As a preferred embodiment of this utility model, the reset assembly further includes three connecting rods, the top ends of which are rotatably mounted inside the second movable groove, and the bottom ends of which are rotatably mounted inside the first movable groove.

[0013] The beneficial effects of this utility model are as follows: This invention uses a motor to drive a rotating rod, which in turn rotates the cleaning components on the rotating rod. The arc-shaped mounting plate and arc-shaped scraper in the cleaning components can scrape the inner wall and bottom of the distillation vessel respectively. At the same time, the nozzle on the water supply pipe can spray water, which, together with the scraping action, effectively removes residual trifluoromethylaniline and other substances, achieving comprehensive and efficient cleaning and avoiding the tediousness and incompleteness of manual cleaning.

[0014] After the cleaning assembly unfolds and cleans due to centrifugal force, the second spring in the reset assembly pulls the movable ring, which drives the L-shaped mounting rod and other components to reset via the connecting rod, allowing the cleaning assembly to return to its initial state for easy cleaning next time. This ensures that the device can continuously and stably perform automatic cleaning of the distillation kettle, improving the practicality and working efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the automatic cleaning device for the trifluoromethylaniline distillation vessel of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the automatic cleaning device for trifluoromethylaniline distillation vessel of this utility model; Figure 3 This is a schematic diagram of the cleaning component and reset component of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the cleaning component of this utility model; Figure 5 This is an enlarged structural schematic diagram of utility model A; Figure 6 This is a schematic diagram of the reset component structure of this utility model; Figure 7 This is a schematic diagram of the water pipe structure of this utility model; Figure 8 This is a schematic diagram of the nozzle structure of this utility model.

[0016] Reference numerals in the attached drawings: 1. Distillation vessel body; 2. Motor; 3. Rotating rod; 4. Water storage hole; 5. Water inlet pipe; 6. Water outlet pipe one; 7. Water outlet pipe two; 8. Limiting ring; 9. Connecting rod; 10. Arc-shaped scraper; 11. Guide rod; 12. Guide groove; 13. L-shaped mounting rod; 14. Arc-shaped mounting plate; 15. Scraper; 16. Water supply pipe; 17. Nozzle; 18. T-connector; 19. Support plate; 20. First spring; 21. T-shaped sealing plug; 22. Fixed ring; 23. Second spring; 24. Movable ring; 25. Connecting rod. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0018] Figures 1-8 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 -Appendix Figure 8 The present invention will be further described below.

[0019] The automatic cleaning device for trifluoromethyl aniline distillation kettle includes a distillation kettle body 1. A motor 2 is fixedly installed on the top of the distillation kettle body 1. A rotating rod 3 is fixedly installed at the output end of the motor 2. A water storage hole 4 is opened at the bottom end of the rotating rod 3. A water inlet pipe 5 is rotatably installed at the bottom end of the rotating rod 3 and inside the water storage hole 4. Three water outlet pipes 6 are fixedly installed at equal intervals on the outer circumference of the rotating rod 3. A second water outlet pipe 7 is movably installed inside the first water outlet pipe 6. A limit ring 8 is fixedly installed on the outer side of one end of the second water outlet pipe 7, which is movably installed inside the first water outlet pipe 6. A sealing ring is fixedly installed on the outer side of the limit ring 8. Three cleaning components for cleaning the inner wall and bottom of the distillation kettle body 1 are equidistantly arranged on the outer circumference of the rotating rod 3. Two reset components are symmetrically arranged along the axial direction on the outer side of the rotating rod 3. The reset components are used in conjunction with the cleaning components. The cleaning components are composed of a guide rod 11 and an arc-shaped mounting plate 14.

[0020] In this embodiment, the distillation vessel body 1 serves as the container for the distillation and cleaning of trifluoromethylaniline, providing a working space. The motor 2 provides power for the rotation of the rotating rod 3, acting as the power source for the automatic cleaning process. Driven by the motor 2, the rotating rod 3 rotates, causing the cleaning and resetting components to rotate as well. The water storage hole 4 accommodates water entering from the inlet pipe 5, which is then temporarily stored at the nozzle 17 after being transported via outlet pipes 6 and 7. The inlet pipe 5 is connected to an external high-pressure water pump and water source, introducing external water into the water storage area of ​​the rotating rod 3. Hole 4, water outlet pipe 1 6 connects water storage hole 4 and water outlet pipe 2 7 to transport water, providing a path for water supply to water supply pipe 16 and nozzle 17. Water outlet pipe 2 7 is movably installed inside water outlet pipe 1 6 and can extend and retract with the cleaning component to cooperate with water supply. Limiting ring 8 and sealing ring ensure the sealing between it and water outlet pipe 1 6 to prevent water leakage. The cleaning component is used to clean the inner wall and bottom of the distillation kettle body 1, effectively removing residual trifluoromethylaniline and other substances from the inner wall and bottom of the kettle. The reset component can drive the cleaning component to reset, ensuring that the device can continuously and stably perform automatic cleaning.

[0021] Specifically, the cleaning assembly includes two guide rods 11, which are symmetrically fixedly installed on the outside of the rotating rod 3 along the axial direction, and the top of the guide rods 11 is provided with guide grooves 12.

[0022] In this embodiment, two guide rods 11 are symmetrically fixed on the outside of the rotating rod 3 along the axial direction to provide installation and movement support for subsequent components such as the L-shaped mounting rod 13. The guide groove 12 is opened on the top of the guide rod 11 to provide a moving track for the scraper rod 15, restrict the movement direction of the scraper rod 15, and ensure that the scraper rod 15 can move stably along the guide groove 12.

[0023] Specifically, the cleaning assembly also includes two L-shaped mounting rods 13. The L-shaped mounting rods 13 are movably mounted on the outside of the guide rod 11. The top of the L-shaped mounting rod 13 is provided with a movable groove. The other end of the L-shaped mounting rod 13 is fixedly mounted with an arc-shaped mounting plate 14. The outside of the two arc-shaped mounting plates 14 is fixedly mounted with scraper rods 15. The scraper rods 15 are movably sleeved inside the guide groove 12.

[0024] In this embodiment, the L-shaped mounting rod 13 is movably mounted on the outside of the guide rod 11, allowing it to move flexibly along the guide rod 11. It is also connected to the connecting rod 25 of the reset assembly via a movable slot at its top. Simultaneously, an arc-shaped mounting plate 14 is fixed to the other end, allowing the rod to transmit its own movement to the arc-shaped mounting plate 14, causing the arc-shaped mounting plate 14 and the scraper 15 to move closer to or away from the inner wall of the distillation vessel body 1. The arc-shaped mounting plate 14 is fixed to the other end of the L-shaped mounting rod 13, and the scraper 15 is mounted on its outer side. The distance between the scraper 15 and the inner wall of the distillation vessel body 1 can be adjusted as the L-shaped mounting rod 13 moves, allowing the scraper 15 to move closer to or further away from the inner wall of the distillation vessel body 1. The scraper 15 can fit against the inner wall. The scraper 15 is fixed to the outside of the arc-shaped mounting plate 14 and movably sleeved inside the guide groove 12. On the one hand, it fits against the inner wall of the distillation vessel body 1 with the arc-shaped mounting plate 14 and scrapes off the residual material on the inner wall under the drive of the rotating rod 3. On the other hand, it moves along the guide groove 12 and is restricted by the guide groove 12 to maintain stable movement and avoid deviation that affects the cleaning effect. The movable groove is opened at the top of the L-shaped mounting rod 13 and is used to rotately connect with the connecting rod 25 of the reset assembly, so that the connecting rod 25 can drive the L-shaped mounting rod 13 to move along the guide rod 11 to realize the unfolding and reset of the cleaning assembly.

[0025] Specifically, the cleaning assembly also includes two water supply pipes 16, which are fixedly installed at both ends of the arc-shaped mounting plate 14. A three-way pipe 18 is fixedly installed between the two water supply pipes 16. The inlet end of the three-way pipe 18 is fixedly installed with one end of the outlet pipe 7. Several nozzles 17 are fixedly installed equidistantly along the axial direction on the outside of the water supply pipes 16.

[0026] In this embodiment, the water supply pipe 16 is fixed to both ends of the arc-shaped mounting plate 14 to transmit water from the three-way pipe 18. As the arc-shaped mounting plate 14 moves, the nozzle 17 can move closer to or away from the inner wall of the distillation vessel body 1. The inlet end of the three-way pipe 18 is connected to the outlet pipe 7, and the two outlet ends are connected to the outside of the water supply pipe 16. The water delivered by the outlet pipe 7 can be diverted to the two water supply pipes 16 to ensure that both water supply pipes 16 can obtain a stable water source, so that the nozzle 17 can spray water evenly. The nozzle 17 can spray water from the water supply pipe 16 to wash away substances such as trifluoromethylaniline remaining on the inner wall of the distillation vessel body 1, and at the same time, it can wash away the residue scraped off by the scraper 15 and the arc-shaped scraper 10.

[0027] Specifically, the cleaning assembly also includes a connecting rod 9, which is fixedly installed on the outside of the rotating rod 3. An arc-shaped scraper 10 is fixedly installed at the other end of the connecting rod 9, and the arc-shaped scraper 10 is adapted to the arc shape of the bottom of the distillation vessel body 1.

[0028] In this embodiment, the connecting rod 9 is fixedly installed on the outside of the rotating rod 3, with one end connected to the rotating rod 3 and the other end fixed to the arc-shaped scraper 10, thus connecting the two. It can transmit the rotational force of the rotating rod 3 to the arc-shaped scraper 10, causing the arc-shaped scraper 10 to rotate synchronously with the rotating rod 3. The arc-shaped scraper 10 is adapted to the arc shape of the bottom of the distillation vessel body 1, and can closely fit the bottom surface of the vessel. When it rotates with the rotating rod 3 under the drive of the connecting rod 9, it can scrape off substances such as trifluoromethylaniline remaining at the bottom of the distillation vessel body 1, and specifically complete the cleaning operation at the bottom of the vessel, avoiding the accumulation of residue at the bottom of the vessel that affects the subsequent distillation effect.

[0029] Specifically, a support plate 19 is fixedly installed inside the nozzle 17, and a first spring 20 is fixedly installed on the side of the support plate 19 near the nozzle. A T-shaped sealing plug 21 is movably sleeved inside the nozzle of the nozzle 17, and the other end of the first spring 20 is fixedly installed with one end of the T-shaped sealing plug 21.

[0030] In this embodiment, by fixing the support plate 19 inside the nozzle 17, a stable mounting support point is provided for the first spring 20, ensuring that the first spring 20 can continuously apply traction force to the T-shaped sealing plug 21. This ensures that the T-shaped sealing plug 21 can tightly fit the nozzle when there is no water pressure. Under the action of the traction force of the first spring 20, the T-shaped sealing plug 21 can seal the nozzle, preventing impurities from entering the nozzle 17 when the cleaning device is not working. When there is water pressure, it can be pushed open by the water flow, allowing water to spray out from the nozzle, ensuring the normal operation of water spray cleaning.

[0031] Specifically, the reset assembly includes a fixed ring 22, which is fixedly installed on the outer side of the rotating rod 3 near one end. A second spring 23 is fixedly installed at the bottom of the fixed ring 22, and a movable ring 24 is fixedly installed at the bottom end of the second spring 23. The movable ring 24 is movably sleeved on the outer side of the rotating rod 3, and three movable grooves are equidistantly opened on the bottom circumference of the movable ring 24.

[0032] In this embodiment, by fixing the fixed ring 22 to the outer side of the rotating rod 3 near one end, a stable top mounting point is provided for the second spring 23. The top of the second spring 23 is fixed to the bottom of the fixed ring 22, and the bottom end is connected to the movable ring 24. It generates elastic force through its own elastic deformation. When the cleaning component is unfolded, the second spring 23 is stretched and stores elastic potential energy. When the cleaning component needs to be reset, the elastic potential energy is released, pulling the movable ring 24 upward to provide power for the reset action. The second movable groove is opened at the bottom of the movable ring 24 and is equidistantly distributed around the circumference, providing rotational mounting space for the top of the connecting rod 25.

[0033] Specifically, the reset assembly also includes three connecting rods 25, with the top end of the connecting rod 25 rotatably mounted inside the second movable slot and the bottom end of the connecting rod 25 rotatably mounted inside the first movable slot.

[0034] In this embodiment, by rotating the top end of the connecting rod 25 into the second movable groove and rotating the bottom end into the first movable groove, the up-and-down movement of the movable ring 24 can be converted into the lateral movement of the L-shaped mounting rod 13. When the cleaning component is finished cleaning and needs to be reset, the elastic potential energy of the second spring 23 is released, pulling the movable ring 24 upward. The movable ring 24 drives one end of the connecting rod 25 upward, and the other end of the connecting rod 25 pulls the L-shaped mounting rod 13 to move along the guide rod 11 toward the rotating rod 3.

[0035] In summary: When using this utility model, the inlet pipe 5 is connected to a high-pressure water pump and a water source, and the motor 2 is connected to an external power source. After the external connections are completed, the motor 2 and the high-pressure water pump are manually started. After the motor 2 is powered on, it outputs power to drive the rotating rod 3 to rotate. When the rotating rod 3 rotates, it drives the three cleaning components equidistantly arranged on the outer circumference and the two axially symmetrical reset components to rotate synchronously. On the other hand, the water storage hole 4 at its bottom receives water from the high-pressure water pump through the inlet pipe 5, which is rotated inside. After the water enters the water storage hole 4, it is transported through the three outlet pipes 6, which are fixed at equal intervals on the outer circumference of the rotating rod 3, to the outlet pipe 7, which is movably installed inside the outlet pipe 6. The limiting ring 8 and the sealing ring on the outside of the outlet pipe 7 can ensure the sealing between it and the outlet pipe 6. To prevent water leakage during water delivery, water outlet pipe 2 7 delivers water to the inlet end of three-way pipe 18. Three-way pipe 18 then distributes the water to two water delivery pipes 16. The water flow in the water delivery pipes 16 generates an impact force. When this impact force is greater than the traction force of the first spring 20 inside the nozzle 17, the water flow pushes the T-shaped sealing plug 21, which is movably fitted inside the nozzle 17, causing the T-shaped sealing plug 21 to move away from the nozzle. The nozzle 17 opens, and water flows out from several nozzles 17 that are equidistantly fixed along the axial direction outside the water delivery pipe 16, rinsing the inner wall of the distillation vessel body 1. At the same time, the rotating rod 3 rotates, generating centrifugal force. When this centrifugal force is greater than the tension of the second spring 23 in the reset assembly, the L-shaped mounting rod 13 in the cleaning assembly moves away from the rotating rod 3 along the guide rod 11. When the L-shaped mounting rod 13 moves, the connecting rod 25, which is rotatably mounted in the movable groove 1 at its top, swings accordingly. The top of the connecting rod 25 rotates in the movable groove 2, which is equidistantly located on the bottom circumference of the movable ring 24, thereby pulling or pushing the movable ring 24 downward or upward along the rotating rod 3. When the movable ring 24 moves downward, it stretches the second spring 23 fixed at the bottom of the fixed ring 22, causing the second spring 23 to store elastic potential energy. At the same time as the L-shaped mounting rod 13 moves, it drives the arc-shaped mounting plate 14 fixed at its other end to move synchronously. The scraper 15 fixed on the outside of the arc-shaped mounting plate 14 moves with it and slides stably along the guide groove 12 at the top of the guide rod 11 until the scraper 15 fits against the inner wall of the distillation vessel body 1 and scrapes away the residue on the inner wall as the rotating rod 3 rotates. Substances such as trifluoromethylaniline are removed. Furthermore, the rotation of the rotating rod 3 also drives the outer fixed connecting rod 9 to rotate synchronously. The arc-shaped scraper 10 fixed at the other end of the connecting rod 9 rotates with it, closely adhering to the bottom of the vessel to scrape away residual substances. The water sprayed from the nozzle 17 washes away the residue scraped off by the scraper 15 and the arc-shaped scraper 10. After the cleaning operation is completed, the motor 2 and high-pressure water pump are manually turned off. The motor 2 stops running, causing the rotating rod 3 to stop rotating. The centrifugal force disappears, and the stretched second spring 23 in the reset assembly releases its elastic potential energy, pulling or pushing the movable ring 24 upwards or downwards along the rotating rod 3. The movable ring 24 drives the top of the connecting rod 25 upwards, and the bottom of the connecting rod 25 pulls the L-shaped mounting rod 13 along the guide rod 11 towards the rotating rod 3.The L-shaped mounting rod 13 drives the arc-shaped mounting plate 14, water supply pipe 16, nozzle 17, and scraper 15 to reset. The second water outlet pipe 7 also retracts back into the first water outlet pipe 6 along with the cleaning components. After the high-pressure water pump stops supplying water, the water flow impact force in the water supply pipe 16 disappears, the first spring 20 returns to its original shape, and its traction force pulls the T-shaped sealing plug 21 to re-fit against the nozzle 17, preventing impurities from entering the nozzle 17 and the water supply pipe 16. Finally, the entire device returns to its initial state, completing one automatic cleaning operation.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An automatic cleaning device for a trifluoromethylaniline distillation vessel, comprising a distillation vessel body (1), characterized in that, A motor (2) is fixedly installed on the top of the distillation vessel body (1). A rotating rod (3) is fixedly installed on the output end of the motor (2). A water storage hole (4) is opened at the bottom end of the rotating rod (3). A water inlet pipe (5) is rotatably installed at the bottom end of the rotating rod (3) and inside the water storage hole (4). Three water outlet pipes (6) are fixedly installed at equal intervals on the outer circumference of the rotating rod (3). A water outlet pipe (7) is movably installed inside the water outlet pipe (6). A limiting ring (8) is fixedly installed on the outer side of one end of the water outlet pipe (6). A sealing ring is fixedly installed on the outer side of the limiting ring (8). Three cleaning components for cleaning the inner wall and bottom of the distillation vessel body (1) are equidistantly arranged on the outer circumference of the rotating rod (3). Two reset components are symmetrically arranged on the outer side of the rotating rod (3) along the axial direction. The reset components are used in conjunction with the cleaning components. The cleaning components are composed of a guide rod (11) and an arc-shaped mounting plate (14).

2. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 1, characterized in that, The cleaning assembly includes two guide rods (11), which are symmetrically fixedly installed on the outside of the rotating rod (3) along the axial direction. The top of the guide rods (11) is provided with guide grooves (12).

3. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 2, characterized in that, The cleaning assembly also includes two L-shaped mounting rods (13), which are movably mounted on the outside of the guide rod (11). The top of the L-shaped mounting rod (13) is provided with a movable groove, and the other end of the L-shaped mounting rod (13) is fixedly mounted with an arc-shaped mounting plate (14). The two arc-shaped mounting plates (14) are fixedly mounted with scraper rods (15) on their outer sides, and the scraper rods (15) are movably sleeved inside the guide groove (12).

4. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 3, characterized in that, The cleaning assembly also includes two water supply pipes (16), which are fixedly installed at both ends of the arc-shaped mounting plate (14). A three-way pipe (18) is fixedly installed between the two water supply pipes (16). The inlet end of the three-way pipe (18) is fixedly installed with one end of the outlet pipe (7). Several nozzles (17) are fixedly installed at equal intervals along the axial direction on the outside of the water supply pipes (16).

5. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 1, characterized in that, The cleaning assembly also includes a connecting rod (9), which is fixedly installed on the outside of the rotating rod (3). An arc-shaped scraper (10) is fixedly installed at the other end of the connecting rod (9), and the arc-shaped scraper (10) is adapted to the arc shape of the bottom of the distillation vessel body (1).

6. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 4, characterized in that, A support plate (19) is fixedly installed inside the nozzle (17). A first spring (20) is fixedly installed on the side of the support plate (19) near the nozzle. A T-shaped sealing plug (21) is movably sleeved inside the nozzle (17). The other end of the first spring (20) is fixedly installed with one end of the T-shaped sealing plug (21).

7. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 1, characterized in that, The reset assembly includes a fixed ring (22), which is fixedly installed on the outer side of the rotating rod (3) near one end. A second spring (23) is fixedly installed at the bottom of the fixed ring (22), and a movable ring (24) is fixedly installed at the bottom end of the second spring (23). The movable ring (24) is movably sleeved on the outer side of the rotating rod (3), and three movable grooves are equidistantly opened on the bottom circumference of the movable ring (24).

8. The automatic cleaning device for the trifluoromethylaniline distillation vessel according to claim 7, characterized in that, The reset assembly also includes three connecting rods (25), the top end of which is rotatably mounted inside the second movable slot, and the bottom end of which is rotatably mounted inside the first movable slot.

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