A reaction vessel and method for separating solid impurities from acetonitrile oxidizing impurities

Abstract

The application belongs to the technical field of reaction kettle cleaning, and particularly relates to a reaction kettle for separating solid impurities in acetonitrile oxidizing impurities and a method, wherein the reaction kettle for separating solid impurities in acetonitrile oxidizing impurities comprises a reaction kettle body, a plurality of metal cleaning blocks are arranged in the inner cavity of the reaction kettle body, and a kettle cover is arranged at the head end of the reaction kettle body; through the annular movement of the metal cleaning blocks under the action of the electromagnetic adsorption assembly, the solid impurities adhered to the inner wall of the reaction kettle body can be cleaned, the cleaning process does not need to be stopped and the kettle cover opened, the harm of acetonitrile volatilization to the health of workers can be prevented, the cleaning time is saved, the production efficiency is improved, and the safety of workers in the cleaning process is ensured, so as to solve the problem that the weak interaction between the oxidizing impurities and the solid impurities in acetonitrile causes the solid particles to easily adhere to form a scale layer, which influences the purity of acetonitrile, the manual cleaning is time-consuming, and the health of workers is harmed.

Description

Technical Field

[0001] This invention belongs to the field of reaction vessel cleaning technology, specifically a reaction vessel and method for separating solid impurities from acetonitrile oxidizing impurities. Background Technology

[0002] Chinese invention patent application number CN202211013995.6 discloses a reaction vessel, which includes a shell and a motor disposed on the top of the shell. The output shaft of the motor passes through the shell and is provided with a rotating disk. A first stirring assembly is provided on the lower surface of the rotating disk. The first stirring assembly includes a plurality of stirring rods arranged along a direction away from the axis of the rotating disk. The top end of the stirring rod is hinged to the rotating disk and the hinge axis is perpendicular to the axis of the rotating disk. The height of the bottom end of the plurality of stirring rods gradually increases along a direction away from the axis of the rotating disk. This application has the advantage of saving energy consumption.

[0003] In the prior art, including the aforementioned patents, oxidizing impurities in acetonitrile may interact weakly with solid impurities, causing solid particles to easily adhere to the reactor wall, agitator, or baffle. After long-term operation, the adhered solids form a "scale layer," which not only reduces the effective volume inside the reactor but also adsorbs more impurities, reducing the purity of the acetonitrile separated later. Manual cleaning requires stopping the machine and opening the lid, which is not only time-consuming but also leads to the volatilization and exposure of acetonitrile, endangering the health of workers. Summary of the Invention

[0004] The problem this invention aims to solve is that the weak interaction between oxidizing impurities and solid impurities in acetonitrile leads to the easy adhesion of solid particles to form a "scale layer," which not only affects the purity of acetonitrile, but also requires time-consuming manual cleaning and endangers the health of workers.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A reaction vessel for separating solid impurities from acetonitrile oxidizing impurities includes a reaction vessel body. The inner cavity of the reaction vessel body is provided with multiple metal cleaning blocks. A vessel cover is located at the head end of the reaction vessel body. The vessel cover is provided with a water inlet pipe, a drive mechanism, and a feed conduit. A vessel rotating sleeve is rotatably fitted onto the outer wall of the reaction vessel body. Both ends of the vessel rotating sleeve are provided with vessel support arms. One end of each vessel support arm is rotatably connected to a support frame. One end of the support frame is provided with a transmission assembly, which meshes with the vessel support arm. The other end of the support frame is connected to a mounting base. The inner cavity of the mounting base is provided with a conductive slip ring. The output end of the conductive slip ring is electrically connected to a rotary drive frame. The rotary drive frame includes: The bracket body has one end mounted on the power output shaft of the conductive slip ring, and the top end of the bracket body is provided with multiple electrically driven telescopic rods. The other end of the multiple electrically driven telescopic rods is provided with a disc seat, and the disc seat is provided with multiple electromagnetic adsorption components. The multiple electromagnetic adsorption components are electrically connected to the conductive slip ring. The driving mechanism includes a reduction assembly mounted on the side wall of the vessel lid. A drive motor is connected to the head end of the reduction assembly, and a paint delivery pipe is rotatably mounted within the inner cavity of the reduction assembly. The head end of the paint delivery pipe is connected to the power output end of the drive motor, and a stirring rod is connected to the tail end of the paint delivery pipe. A sealing sleeve is rotatably fitted onto the head end of the paint delivery pipe, with sealing bearings at both ends. A threaded connection port is provided on the side wall of the sealing sleeve. The paint delivery pipe is rotatably connected to the inner cavity of the sealing bearings, and multiple rectangular feed ports are opened on the side wall of the paint delivery pipe. The sealing sleeve is connected to the inner cavity of the paint delivery pipe. Multiple paint nozzles are provided on the side wall of the tail end of the paint delivery pipe, arranged in a ring, and all paint nozzles are connected to the inner cavity of the paint delivery pipe. The head end of the vessel support arm is connected to the side wall of the vessel rotating sleeve. A first annular groove is provided on the inner side wall of the vessel rotating sleeve. A plurality of steel balls are provided in the inner cavity of the first annular groove. The other side of the plurality of steel balls abuts against the outer side wall of the reaction vessel body. The plurality of steel balls are arranged in a ring. A worm gear is connected to the tail end of the vessel support arm. A second annular groove is provided on the outer wall of the reactor body, and the inner bottom wall of the second annular groove abuts against a plurality of steel balls. The transmission assembly includes two connecting seats, both of which are mounted on one side wall of the support frame. A worm gear is rotatably connected to the two connecting seats, and the worm gear meshes with a worm wheel. One end of the worm gear is provided with an adjustment handle.

[0006] Preferably, the top of the disc seat is provided in an arc-shaped concave shape, and the arc-shaped concave shape of the disc seat matches the bottom arc shape of the reactor body.

[0007] Preferably, the electromagnetic adsorption assembly includes a connecting base, which is mounted on the arc-shaped concave sidewall of the disc base. Multiple coil frames are provided on the outer side of the connecting base, and copper wires are wound on each of the multiple coil frames. The copper wires on the coil frames are electrically connected to conductive connection ports, and one end of each conductive connection port is electrically connected to a conductive slip ring.

[0008] Preferably, the feed conduit is connected to the inner cavity of the reactor body, the top end of the feed conduit is provided with a feed inlet, and a sealing cap is installed on the feed inlet.

[0009] A method for using a reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile includes the following steps: S1: Open the sealing cap at the top of the feed pipe, add the metal cleaning block into the inner cavity of the reactor body through the top opening of the feed pipe, then connect the water inlet pipe to the external water inlet pipe, input deionized water or distilled water, so that the distilled water covers the metal cleaning block, start the conductive slip ring, drive the rotating drive frame to rotate, the rotating drive frame drives multiple electromagnetic adsorption components to rotate, the electromagnetic adsorption components generate a magnetic field when energized, adsorb the metal cleaning block in the inner cavity of the reactor body, so that the metal cleaning block moves in a ring in the inner cavity of the reactor body, adsorbing and cleaning solid impurities on the side wall; S2: Manually turn the adjustment handle to drive the worm gear to rotate, which in turn drives the rotating sleeve of the vessel and the reactor body to adjust the longitudinal angle. This, combined with the rotation of the reactor body, avoids cleaning dead angles. When the reactor body is adjusted to rotate longitudinally, the height of the disc seat is adjusted by extending and retracting the electrically driven telescopic rod. This keeps the distance between the electromagnetic adsorption component and the bottom of the reactor body constant, preventing the magnetic field adsorption force from decreasing and ensuring cleaning power and effectiveness. S3: After cleaning, turn off the electromagnetic adsorption component, rotate the reactor body so that the output end of the feed pipe faces downward, and pour out the distilled water and metal cleaning block in the reactor body; connect the threaded connection port on the sealing connection sleeve to the external protective film spraying equipment, so that the spraying film liquid enters the sealing connection sleeve and the inner cavity of the stirring rod through the paint delivery pipe, and is sprayed out through multiple paint nozzles on the stirring rod. At the same time, start the drive motor to drive the stirring rod to rotate, ensuring the uniformity of the anti-corrosion coating.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can clean the solid impurities attached to the inner wall of the reactor body by the circular motion of the metal cleaning block under the action of the electromagnetic adsorption component, avoiding the formation of "scale layer" and the resulting decrease in acetonitrile purity. Moreover, the cleaning process does not require stopping the machine to open the cover, which can prevent acetonitrile volatilization from harming the health of the staff, save cleaning time, improve production efficiency, and ensure the safety of the staff during the cleaning process. (2) The present invention achieves longitudinal angle adjustment by driving the reactor body through the reactor body support arm. At the same time, it combines the self-rotation of the reactor body with the electromagnetic adsorption component to drive the metal cleaning block to move in a ring inside the reactor, and the electric drive telescopic rod to adjust the distance between the electromagnetic adsorption component and the bottom of the reactor in real time to ensure that the adsorption force is coordinated. This method can fully cover all areas of the reactor cavity. Compared with the traditional cleaning method, the cleaning effect is more thorough and avoids cleaning dead corners. (3) After cleaning, the stirring rod is driven by the drive motor to rotate. With the help of multiple ring-shaped paint nozzles on the paint delivery pipe, the protective film liquid can be evenly sprayed onto the inner wall of the reactor to form an anti-corrosion coating. This not only reduces the corrosion of the reactor body by acetonitrile and its impurities, and extends the service life of the reactor body, but also reduces the probability of solid impurities re-attaching due to the roughness caused by corrosion of the inner wall of the reactor body. This ensures the stability of the internal environment of the reactor body and indirectly improves the purity of acetonitrile separation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective; Figure 3 This is a schematic diagram of the drive mechanism of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the structure of the sealing connecting sleeve of the present invention; Figure 6 This is a schematic diagram of the structure of the rotary drive frame of the present invention; Figure 7 This is a cross-sectional view of the rotary drive frame of the present invention; Figure 8 This is a schematic diagram of the electromagnetic adsorption component of the present invention; Figure 9 This is a top sectional view of the reaction vessel body of the present invention; Figure 10 This is a schematic diagram of the transmission assembly of the present invention; Figure 11 This is a schematic diagram of the structure of the metal cleaning block of the present invention.

[0012] In the diagram: 1. Reactor body; 01. Metal cleaning block; 2. Reactor rotating sleeve; 3. Support frame; 4. Mounting base; 5. Conductive slip ring; 6. Rotary drive frame; 11. Reactor cover; 12. Water inlet pipe; 13. Drive mechanism; 14. Feed conduit; 21. Reactor support arm; 211. Worm gear; 22. Steel ball; 31. Transmission assembly; 311. Connecting seat; 312. Worm; 313. Adjusting handle; 61. Support body; 62. Electric drive telescopic rod; 63. Disc seat; 64. Electromagnetic adsorption assembly; 641. Connecting base; 642. Coil frame; 643. Conductive connection port; 031. Sealing connecting sleeve; 032. Paint nozzle; 131. Reduction assembly; 132. Drive motor; 133. Paint delivery pipe; 134. Stirring rod. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0014] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "comprising" or "including," and similar terms used in this invention, mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0015] like Figures 1 to 11 As shown, the present invention provides a reaction vessel for separating solid impurities in acetonitrile oxidizing impurities, comprising a reaction vessel body 1, an inner cavity of the reaction vessel body 1 having multiple metal cleaning blocks 01, a vessel cover 11 at the head end of the reaction vessel body 1, a water inlet pipe 12, a drive mechanism 13 and a feed conduit 14 on the vessel cover 11, a vessel body rotating sleeve 2 rotatably sleeved on the outer side wall of the reaction vessel body 1, vessel body support arms 21 at both ends of the vessel body rotating sleeve 2, a support frame 3 rotatably connected to one end of the vessel body support arm 21, a transmission group 31 at one end of the support frame 3, the transmission group 31 meshing with the vessel body support arm 21, and a mounting base 4 connected to the other end of the support frame 3, a conductive slip ring 5 in the inner cavity of the mounting base 4, and a rotary drive frame 6 electrically connected to the output end of the conductive slip ring 5. The rotary drive frame 6 includes: The support body 61 has one end mounted on the power output shaft of the conductive slip ring 5. The top of the support body 61 is equipped with multiple electrically driven telescopic rods 62, and the other end of each rod is equipped with a disc seat 63. The disc seat 63 is equipped with multiple electromagnetic adsorption components 64, which are electrically connected to the conductive slip ring 5. Through the cooperation of the metal cleaning block 01, the electromagnetic adsorption components 64, and the rotary drive frame 6, automated cleaning of solid impurities on the inner wall of the reactor body 1 can be achieved, eliminating the need for manual cleaning and improving cleaning efficiency and safety. Simultaneously, the electrically driven telescopic rods 62 can flexibly adjust the position of the electromagnetic adsorption components 64 to ensure adsorption strength.

[0016] Furthermore, the drive mechanism 13 includes a reduction gear assembly 131, which is mounted on the side wall of the vessel lid 11. The head end of the reduction gear assembly 131 is connected to a drive motor 132. A paint delivery pipe 133 is rotatably mounted inside the reduction gear assembly 131. The head end of the paint delivery pipe 133 is connected to the power output end of the drive motor 132, and the tail end of the paint delivery pipe 133 is connected to a stirring rod 134. A sealing connecting sleeve 031 is rotatably fitted onto the head end of the paint delivery pipe 133. Sealing bearings are provided at both ends of the sealing connecting sleeve 031, and threaded connection ports are provided on the side wall of the sealing connecting sleeve 031. The paint delivery pipe 133 is rotatably connected to the inner cavity of the sealing bearings. Multiple rectangular feed ports are provided on the side wall of the 33. The sealing connecting sleeve 031 is connected to the inner cavity of the paint conveying pipe 133. Multiple paint nozzles 032 are provided on the side wall of the tail end of the paint conveying pipe 133. The multiple paint nozzles 032 are arranged in a ring and are all connected to the inner cavity of the paint conveying pipe 133. The drive mechanism 13 realizes the integrated function of stirring rod 134 and paint spraying. The design of sealing connecting sleeve 031 and sealing bearing ensures the sealing of the paint conveying pipe 133 during the conveying process. The ring-arranged paint nozzles 032 can make the anti-corrosion coating sprayed more evenly, improving the anti-corrosion effect and service life of the reactor body 1.

[0017] Furthermore, the head end of the vessel support arm 21 is connected to the side wall of the vessel rotating sleeve 2. A first annular groove is provided on the inner side wall of the vessel rotating sleeve 2. Multiple steel balls 22 are provided in the inner cavity of the first annular groove. The other side of the multiple steel balls 22 abuts against the outer side wall of the reactor body 1. The multiple steel balls 22 are arranged in a ring. A worm gear 211 is connected to the tail end of the vessel support arm 21. The setting of the steel balls 22 reduces the frictional resistance when the reactor body 1 rotates, making the rotation of the reactor body 1 smoother. At the same time, the cooperation between the vessel support arm 21 and the worm gear 211 provides a stable structural basis for the angle adjustment of the reactor body 1, ensuring the reliability of the adjustment process.

[0018] Furthermore, a second annular groove is provided on the outer wall of the reactor body 1, and the inner bottom wall of the second annular groove abuts against multiple steel balls 22; the second annular groove cooperates with the steel balls 22 to limit and guide the steel balls 22, ensuring that the reactor body 1 will not deviate during rotation, thus ensuring the stability and concentricity of rotation.

[0019] Furthermore, the transmission assembly 31 includes two connecting seats 311, both of which are mounted on one side wall of the support frame 3. A worm gear 312 is rotatably connected to the two connecting seats 311, and the worm gear 312 meshes with the worm wheel 211. One end of the worm gear 312 is provided with an adjustment handle 313. The meshing transmission between the worm gear 312 and the worm wheel 211 can realize precise longitudinal angle adjustment of the reactor body 1. The setting of the adjustment handle 313 makes the operation more convenient and labor-saving, and the transmission assembly 31 has a self-locking structure, which can stably maintain the adjusted angle position.

[0020] Furthermore, the top of the disc seat 63 is set in an arc-shaped concave shape, and the arc-shaped concave shape of the disc seat 63 matches the arc shape of the bottom of the reactor body 1; the arc design of the disc seat 63 fits the bottom of the reactor body 1, which can increase the contact area between the electromagnetic adsorption component 64 and the bottom of the reactor body 1, enhance the adsorption effect of the magnetic field on the metal cleaning block 01, and ensure that the impurities at the bottom can be fully cleaned.

[0021] Furthermore, the electromagnetic adsorption component 64 includes a connecting base 641, which is mounted on the arc-shaped recessed sidewall of the disc base 63. Multiple coil frames 642 are provided on the outer side of the connecting base 641, and copper wires are wound on each of the multiple coil frames 642. The copper wires on the coil frames 642 are electrically connected to conductive connection ports 643, and one end of the conductive connection port 643 is electrically connected to the conductive slip ring 5. When the copper wires wound on the coil frames 642 are energized, they can generate a strong magnetic field, which is continuously powered through the conductive slip ring 5 to ensure the stable adsorption and driving of the electromagnetic adsorption component 64 on the metal cleaning block 01, and to provide sufficient power for the cleaning process.

[0022] Furthermore, the feed conduit 14 is connected to the inner cavity of the reactor body 1. The top end of the feed conduit 14 is provided with a feed port, and a sealing cap is installed on the feed port. The feed conduit 14 facilitates the addition of the metal cleaning block 01 and the addition of the reaction materials. The sealing cap can ensure the sealing of the reactor body 1 during the reaction and cleaning process, preventing waste caused by acetonitrile volatilization and health hazards to the staff.

[0023] A method for using a reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile includes the following steps: S1: Open the sealing cap at the top of the feed conduit 14, and add the metal cleaning block 01 into the inner cavity of the reactor body 1 through the opening at the top of the feed conduit 14. Then connect the water inlet pipe 12 to the external water inlet pipe and input deionized water or distilled water so that the distilled water covers the metal cleaning block 01. Start the conductive slip ring 5 to drive the rotating drive frame 6 to rotate. The rotating drive frame 6 drives multiple electromagnetic adsorption components 64 to rotate. The electromagnetic adsorption components 64 generate a magnetic field when energized, which adsorbs the metal cleaning block 01 in the inner cavity of the reactor body 1, causing the metal cleaning block 01 to move in a ring in the inner cavity of the reactor body 1, adsorbing and cleaning solid impurities on the side wall. By driving the metal cleaning block 01 to move in a ring through the electromagnetic adsorption components 64, the inner wall of the reactor body 1 can be thoroughly cleaned by friction. The addition of distilled water through the water inlet pipe 12 not only enhances the cleaning effect, but also avoids sparks and excessive heat generated by metal friction, thus improving the safety of the cleaning process.

[0024] S2: Manually rotate the adjustment handle 313 to drive the worm gear 211 to rotate, thereby adjusting the longitudinal angle of the vessel rotating sleeve 2 and the reactor body 1. This, combined with the rotation of the reactor body 1, avoids cleaning dead spots. When the reactor body 1 is adjusted longitudinally, the height of the disc seat 63 is adjusted by extending and retracting the electrically driven telescopic rod 62, keeping the distance between the electromagnetic adsorption component 64 and the bottom of the reactor body 1 constant. This prevents the magnetic field adsorption force from decreasing, ensuring cleaning power and effectiveness. The longitudinal angle adjustment achieved by the rotation of the reactor body 1 in conjunction with the worm gear 211 and worm 312 can fully cover all areas inside the vessel, effectively avoiding cleaning dead spots. The synchronous adjustment of the electrically driven telescopic rod 62 ensures the stability of the magnetic field adsorption force of the electromagnetic adsorption component 64, further ensuring the uniformity of the cleaning effect.

[0025] S3: After cleaning, turn off the electromagnetic adsorption component 64, rotate the reactor body 1 so that the output end of the feed pipe 14 faces downward, and pour out the distilled water and metal cleaning block 01 inside the reactor body 1; connect the threaded connection port on the sealing connection sleeve 031 to the external protective film spraying equipment, so that the spraying film liquid enters the sealing connection sleeve 031 and the inner cavity of the stirring rod 134 through the paint delivery pipe 133, and is sprayed out through multiple paint nozzles 032 on the stirring rod 134. At the same time, start the drive motor 132 to drive the stirring rod 134 to rotate, ensuring the uniformity of the anti-corrosion coating; after cleaning, the waste liquid and metal cleaning block 01 can be quickly discharged through the feed pipe 14 by rotating the reactor body 1, which is convenient to operate; the stirring rod 134 rotates under the drive motor 132 and cooperates with multiple paint nozzles 032 to spray, which can make the anti-corrosion coating evenly cover the inner wall of the reactor, reduce the subsequent corrosion of the reactor body 1 by acetonitrile and impurities, extend the service life of the reactor and ensure the stability of the reaction.

[0026] Working principle and usage process of this invention: After opening the sealing cap at the top of the feed conduit 14, the metal cleaning block 01 is added into the inner cavity of the reactor body 1 through the opening at the top of the feed conduit 14. At this time, the conductive slip ring 5 is activated, and the rotating drive frame 6 is driven to rotate through the conductive slip ring 5, which in turn drives multiple electromagnetic adsorption components 64 to rotate. While the multiple electromagnetic adsorption components 64 are rotating, they can be powered through the conductive slip ring 5. When the electromagnetic adsorption components 64 are powered on, they adsorb the metal cleaning block 01 in the inner cavity of the reactor body 1. After being adsorbed, the multiple metal cleaning blocks 01 can move in a ring in the inner cavity of the reactor body 1. Through the contact with the side wall of the inner cavity of the reactor body 1, the metal cleaning block 01 can clean the solid impurities adsorbed on the side wall of the inner cavity of the reactor body 1 when it moves. It should be noted that before cleaning, the inlet pipe 12 can be connected to an external water inlet pipe. By introducing deionized water or distilled water into the inner cavity of the reactor body 1, multiple metal cleaning blocks 01 can be used to rub the inner wall of the reactor body 1 during cleaning, which can improve the cleaning effect. In addition, the introduction of distilled water can prevent the sparks generated by the friction between metals from igniting the gas inside the reactor and causing an explosion, as well as the increase in pressure inside the reactor body 1, thus improving the safety of the cleaning process. At the same time, since friction will cause the reactor body 1 to heat up, the introduction of distilled water can cool it down, further improving safety. The worm gear 211 is driven to rotate by manually turning the adjustment handle 313, thereby driving the vessel rotating sleeve 2 and the reactor body 1 to adjust the longitudinal angle. In addition, since the vessel rotating sleeve 2 and the reactor body 1 are rotatably connected, the rotation of the reactor body 1 can be coordinated to avoid cleaning dead corners. It should be noted that when the longitudinal rotation angle of the reactor body 1 is adjusted, the height of the disc seat 63 can be adjusted by extending and retracting the electrically driven telescopic rod 62, so that the distance between the electromagnetic adsorption component 64 and the bottom of the reactor body 1 remains unchanged, avoiding the problem of reduced magnetic field adsorption force due to the greater distance, further ensuring cleaning power and improving cleaning effect. After cleaning, turn off the electromagnetic adsorption component 64, rotate the reactor body 1 so that the output end of the feed pipe 14 faces downward, and pour out all the distilled water and metal cleaning block 01 in the reactor body 1. Then connect the threaded connection port on the sealing connection sleeve 031 to the external protective film spraying equipment, so that the spraying film liquid enters the inner cavity of the sealing connection sleeve 031 and the stirring rod 134 through the paint delivery pipe 133, and is sprayed out through the multiple paint nozzles 032 on the stirring rod 134. At the same time, start the drive motor 132 to drive the stirring rod 134 to rotate, ensuring the uniformity of the spraying process. After cleaning, the anti-corrosion coating can extend the service life of the reactor body 1 and ensure the stability of the acetonitrile reaction process in the reactor body 1, further improving the safety of the process.

[0027] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile, characterized in that, The reactor includes a reactor body (1), the inner cavity of which is provided with multiple metal cleaning blocks (01), the head end of which is provided with a reactor cover (11), the reactor cover (11) is provided with a water inlet pipe (12), a drive mechanism (13) and a feed pipe (14), the outer wall of which is rotatably fitted with a reactor body rotating sleeve (2), the two ends of which are provided with reactor body support arms (21), one end of which is rotatably connected to a support frame (3), one end of which is provided with a transmission group (31), the transmission group (31) is meshed with the reactor body support arm (21), the other end of which is connected to a mounting base (4), the inner cavity of which is provided with a conductive slip ring (5), the output end of which is electrically connected to a rotary drive frame (6); the rotary drive frame (6) includes: The bracket body (61) has one end mounted on the power output shaft of the conductive slip ring (5), and the top end of the bracket body (61) is provided with multiple electrically driven telescopic rods (62). The other end of the multiple electrically driven telescopic rods (62) is provided with a disc seat (63), and the disc seat (63) is provided with multiple electromagnetic adsorption components (64). The multiple electromagnetic adsorption components (64) are electrically connected to the conductive slip ring (5). The top of the disc seat (63) is set in an arc-shaped concave shape, and the arc-shaped concave shape of the disc seat (63) matches the bottom arc shape of the reactor body (1).

2. The reaction vessel for separating solid impurities from acetonitrile oxidizing impurities according to claim 1, characterized in that, The drive mechanism (13) includes a reduction assembly (131), which is mounted on the side wall of the vessel lid (11). A drive motor (132) is connected to the head end of the reduction assembly (131). A paint delivery pipe (133) is rotatably mounted inside the reduction assembly (131). The head end of the paint delivery pipe (133) is connected to the power output end of the drive motor (132), and a stirring rod (134) is connected to the tail end of the paint delivery pipe (133). A sealing sleeve (031) is rotatably fitted onto the head end of the paint delivery pipe (133). Both ends of the coating conveying pipe (133) are provided with sealed bearings. The side wall of the sealed connecting sleeve (031) is provided with a threaded connection port. The coating conveying pipe (133) is rotatably connected to the inner cavity of the sealed bearing. Multiple rectangular feed ports are opened on the side wall of the coating conveying pipe (133). The sealed connecting sleeve (031) is connected to the inner cavity of the coating conveying pipe (133). Multiple coating nozzles (032) are provided on the side wall of the tail end of the coating conveying pipe (133). The multiple coating nozzles (032) are arranged in a ring. All coating nozzles (032) are connected to the inner cavity of the coating conveying pipe (133).

3. The reaction vessel for separating solid impurities from acetonitrile oxidizing impurities according to claim 2, characterized in that, The head end of the vessel support arm (21) is connected to the side wall of the vessel rotating sleeve (2). The inner side wall of the vessel rotating sleeve (2) is provided with a first annular groove. The inner cavity of the first annular groove is provided with a plurality of steel balls (22). The other side of the plurality of steel balls (22) abuts against the outer side wall of the reactor body (1). The plurality of steel balls (22) are arranged in a ring. The tail end of the vessel support arm (21) is connected to a worm gear (211).

4. The reaction vessel for separating solid impurities from acetonitrile oxidizing impurities according to claim 3, characterized in that, The outer side wall of the reactor body (1) is provided with a second annular groove, and the inner bottom wall of the second annular groove abuts against a plurality of steel balls (22).

5. A reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile according to claim 3, characterized in that, The transmission assembly (31) includes two connecting seats (311), both of which are mounted on one side wall of the support frame (3). A worm (312) is rotatably connected to the two connecting seats (311). The worm (312) meshes with a worm wheel (211). One end of the worm (312) is provided with an adjustment handle (313).

6. A reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile according to claim 1, characterized in that, The electromagnetic adsorption assembly (64) includes a connecting base (641), which is mounted on the arc-shaped recessed sidewall of the disc base (63). Multiple coil frames (642) are provided on the outer side of the connecting base (641), and copper wire is wound on each of the multiple coil frames (642). The copper wire on the coil frame (642) is electrically connected to a conductive connection port (643), and one end of the conductive connection port (643) is electrically connected to a conductive slip ring (5).

7. A reaction vessel for separating solid impurities from acetonitrile oxidizing impurities according to claim 1, characterized in that, The feed conduit (14) is connected to the inner cavity of the reactor body (1). The top end of the feed conduit (14) is provided with a feed inlet, and a sealing cap is installed on the feed inlet.

8. A method of using a reaction vessel for separating solid impurities from oxidizing impurities in acetonitrile according to claim 5, characterized in that, The steps are as follows: S1: Open the sealing cap at the top of the feed pipe (14), add the metal cleaning block (01) into the inner cavity of the reactor body (1) through the opening at the top of the feed pipe (14), then connect the water inlet pipe (12) to the external water inlet pipe, input deionized water or distilled water, so that the distilled water covers the metal cleaning block (01), start the conductive slip ring (5), drive the rotating drive frame (6) to rotate, the rotating drive frame (6) drives multiple electromagnetic adsorption components (64) to rotate, the electromagnetic adsorption components (64) generate a magnetic field when energized, adsorb the metal cleaning block (01) in the inner cavity of the reactor body (1), so that the metal cleaning block (01) moves in a ring in the inner cavity of the reactor body (1) to adsorb and clean the solid impurities on the side wall; S2: Manually rotate the adjustment handle (313) to drive the worm gear (211) to rotate, thereby driving the rotating sleeve (2) of the vessel body and the reactor body (1) to adjust the longitudinal angle. This is done in conjunction with the rotation of the reactor body (1) to avoid dead corners during cleaning. When the reactor body (1) is adjusted in the longitudinal rotation angle, the height of the disc seat (63) is adjusted by the extension and retraction of the electric drive telescopic rod (62) so that the distance between the electromagnetic adsorption component (64) and the bottom of the reactor body (1) remains unchanged, thus avoiding a reduction in the magnetic field adsorption force and ensuring cleaning power and effect. S3: After cleaning, turn off the electromagnetic adsorption component (64), rotate the reactor body (1) so that the output end of the feed pipe (14) faces down, and pour out the distilled water and metal cleaning block (01) in the reactor body (1); connect the threaded connection port on the sealing connection sleeve (031) to the external protective film spraying equipment, so that the spraying film liquid enters the sealing connection sleeve (031) and the inner cavity of the stirring rod (134) through the paint delivery pipe (133), and is sprayed out through multiple paint nozzles (032) on the stirring rod (134). At the same time, start the drive motor (132) to drive the stirring rod (134) to rotate, ensuring the uniformity of the anti-corrosion coating.

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