Reaction kettle for preparing aerogel precursor

Abstract

The invention provides a reaction kettle for preparing an aerogel precursor. Relates to the field of reaction kettles, in particular to a reaction kettle for preparing an aerogel precursor, which comprises a rotating motor rotatably mounted at the top of a reaction kettle body, a main shaft rod is fixedly mounted on an output shaft of the rotating motor, the bottom end of the main shaft rod extends into the reaction kettle body, an adjusting cavity is formed in the main shaft rod, and the adjusting cavity is communicated with the main shaft rod. A stirring mechanism for adjusting the dynamic angle and the vertical position of the stirring plate in a fixed area in the reaction kettle body in the stirring process is arranged in the adjusting cavity, the operation posture and the action height of the stirring plate are changed through the stirring mechanism, the stirring dead angle range is narrowed, and raw materials are uniformly mixed. The reaction kettle for preparing the aerogel precursor, provided by the invention, has the advantages that the angle and height of the stirring plate are adjusted, so that raw materials are stirred more uniformly.

Description

Technical Field

[0001] This invention relates to the field of reaction vessel technology, and more particularly to a reaction vessel for preparing aerogel precursors. Background Technology

[0002] Aerogels have excellent properties such as ultra-low thermal conductivity and high porosity, and have broad application prospects in aerospace, new energy, energy conservation and environmental protection. However, the core of their performance depends on the quality of the precursor preparation, and the synthesis of aerogel precursors must be completed in a reactor.

[0003] Although existing reactors for preparing aerogel precursors are equipped with stir plate angle adjustment functions, the adjustment operation must be completed before stirring is started. Once stirring is started, the stir plate will always maintain the fixed tilt angle after adjustment, and the angle cannot be dynamically adjusted throughout the entire process of raw material stirring. Due to the limitation of the fixed angle, the movement trajectory of the stir plate is always fixed, and "stirring dead corners" are easily formed in areas such as the inner wall and bottom corners of the reactor. The raw materials in these dead corners are difficult to be effectively driven by the stir plate and can only be mixed by molecular diffusion, which ultimately leads to uneven mixing of raw materials and affects the reaction consistency of aerogel precursors.

[0004] Therefore, it is necessary to provide a reaction vessel for preparing aerogel precursors to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this invention is to provide a reaction vessel for preparing aerogel precursors, which allows for adjustment of the angle and height of the stirring plate to make the raw materials more uniformly stirred.

[0006] To address the aforementioned technical problems, the present invention provides a reactor for preparing aerogel precursors, comprising a rotating motor rotatably mounted on the top of the reactor body, a main shaft fixedly mounted on the output shaft of the rotating motor, and the bottom end of the main shaft extending into the reactor body. An adjustment cavity is provided within the main shaft, and a stirring mechanism is installed within the adjustment cavity to dynamically adjust the angle and vertical position of the stirring plate within a fixed area of ​​the reactor body during stirring. By changing the working posture and working height of the stirring plate through the stirring mechanism, the range of dead zones in stirring is reduced, ensuring uniform mixing of the raw materials. A protective cover rotatably fitted onto the main shaft contains an adjustment mechanism that dynamically adjusts the angle and vertical position of the stirring plate within different areas of the reactor body during stirring, further reducing the influence of blind zones in stirring and ensuring more thorough and uniform mixing of the raw materials.

[0007] Preferably, the stirring mechanism includes a plurality of rotating rods rotatably mounted within an adjustment cavity, with both ends of each rotating rod extending outside the adjustment cavity and respectively fixedly mounted with a U-shaped plate. An arc-shaped plate is disposed within each of the plurality of U-shaped plates. A crossbar is rotatably mounted on each of the plurality of U-shaped plates, with a stirring plate fixedly mounted at one end of each crossbar and a rotating gear fixedly sleeved at the other end. The plurality of rotating gears mesh with gear grooves formed on the outer walls of the plurality of arc-shaped plates. A circular plate is fixedly sleeved on each of the plurality of rotating rods, and two torsion springs are movably sleeved on the lowest rotating rod, with one end of each torsion spring engaging with a corresponding... The circular plates are fixedly connected, and the other ends of the two torsion springs are fixedly connected to the inner wall of the adjustment cavity. Several circular plates are fixedly mounted with fixing plates, and several fixing plates are fixedly mounted with connecting ropes. The other ends of several connecting ropes are fixedly connected to the upper fixing plate. Two pull ropes are fixedly mounted on the uppermost connecting rope, and the other ends of the two pull ropes extend into the protective cover and are fixedly mounted with adjusting copper balls. The adjusting copper balls have rolling grooves, and positive magnet balls are movably arranged in the rolling grooves. An adjusting ring is rotatably installed inside the protective cover, and the adjusting ring is composed of several positive arc-shaped magnet plates and arc-shaped lead plates of the same size.

[0008] Preferably, the adjusting mechanism includes an external gear ring fixedly sleeved on the main shaft, two driven gears rotatably mounted on the inner wall of the top of the protective cover, both of which mesh with the external gear ring, an internal gear ring rotatably mounted on the inner wall of the protective cover, the internal gear ring meshing with the two driven gears, and the bottom of the internal gear ring being fixedly connected to the adjusting ring via two connecting posts.

[0009] Preferably, the adjusting copper ball is provided with a magnetizing mechanism to remagnetize the magnetism lost by the positive magnet ball. The magnetizing mechanism includes a crescent-shaped cavity opened in the adjusting copper ball, and the crescent-shaped cavity is connected to the rolling groove. A limiting ring plate is slidably installed in the crescent-shaped cavity, and a neodymium iron boron magnet ball and a limiting lead ball are slidably installed on the limiting ring plate.

[0010] Preferably, the adjusting copper ball has a heat dissipation port, and the heat dissipation port communicates with the rolling groove.

[0011] Preferably, a limiting arc groove is formed inside the crescent-shaped cavity, a limiting arc plate is slidably installed in the limiting arc groove, and a pushing lead ball is fixedly installed at the bottom end of the limiting arc plate.

[0012] Preferably, vertical rods are fixedly installed on the top ends of the two gears, and both vertical rods are rotatably connected to the top inner wall of the protective cover.

[0013] Preferably, a connecting pipe is movably sleeved on the main shaft, and the top end of the connecting pipe is fixedly connected to the top inner wall of the reactor body, and the bottom end of the connecting pipe is fixedly connected to the protective cover.

[0014] Preferably, two through holes are formed on the inner wall of the adjustment cavity, and linear bearings are fixedly installed in the two through holes respectively. The two pull ropes pass through the two linear bearings respectively and are slidably connected to the inner walls of the two linear bearings respectively.

[0015] Compared with related technologies, the reaction vessel for preparing aerogel precursors provided by the present invention has the following beneficial effects: This invention provides a reactor for preparing aerogel precursors. Various raw materials are fed into the reactor body through a feeding pipe. The feeding pipe is closed and a rotating motor is started to rotate the stirring plate. At the same time, the two adjusting copper balls and the positive magnet ball are subjected to centrifugal force and move radially away from the main shaft, thereby driving the right stirring plate to rotate upward and also rotate on its own axis to complete the angle adjustment. Meanwhile, the stirring plate located on the left side of the main shaft rotates downward and also rotates on its own axis, so that the two adjacent stirring plates move closer to each other and expand the stirring coverage area.

[0016] The repulsive force between the positive arc-shaped magnetic plate and the positive magnetic ball causes the positive magnetic ball to move a constantly changing distance. This, in turn, causes the traction length of the connecting rope to fluctuate dynamically, allowing the driving stirring plate to continuously rotate and move up and down while rotating with the main shaft. This enables real-time dynamic adjustment of the stirring angle and height, effectively reducing the stirring dead zone and ensuring that the raw materials are stirred evenly.

[0017] By using external and internal gear rings of different sizes, the rotation speeds of the adjusting ring and the positive magnet ball are asynchronous. This allows the dynamic adjustment of the stirring plate to no longer be limited to a fixed area within the reactor body, but to be adjusted in angle and height in different areas within the reactor body during the stirring process, further reducing the area of ​​dead zones in the stirring.

[0018] The NdFeB magnet ball is pressed against the top of the crescent-shaped cavity by the limiting lead ball, preventing it from interfering with the rolling of the positive magnet ball on the arc-shaped lead plate. At the same time, the centrifugal force exerted by the pushing lead ball compresses the NdFeB magnet ball upwards, making it more stable in its current position. After the device has finished mixing the raw materials, the positive magnet ball is contacted and magnetized by the NdFeB magnet ball, restoring its magnetism and extending its service life for normal use next time. Attached Figure Description

[0019] Figure 1 A rear cross-sectional view of the reaction vessel used for preparing aerogel precursors according to the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A shown; Figure 3 for Figure 1 An enlarged schematic diagram of part B shown; Figure 4 for Figure 3 An enlarged schematic diagram of section C shown; Figure 5 for Figure 1 A partial assembly diagram of the U-shaped plate and the stirring plate shown; Figure 6 for Figure 1 The exploded view of the adjusting ring, protective cover, and internal gear ring shown; Figure 7 This is a diagram showing the positions of the positive magnet ball, neodymium iron boron magnet ball, limiting lead ball, and pushing lead ball when the present invention is not in operation. Figure 8 This diagram shows the positions of the positive magnet ball, neodymium iron boron magnet ball, limiting lead ball, and pushing lead ball during the operation of this invention. Figure 9 This is a front view of the reaction vessel used for preparing aerogel precursors according to the present invention.

[0020] The diagram is labeled as follows: 1. Reactor body; 2. Rotating motor; 3. Main shaft; 4. Stirring plate; 5. Rotating rod; 6. Circular plate; 7. Torsion spring; 8. U-shaped plate; 9. Pushing lead ball; 10. Connecting rope; 11. Arc plate; 12. Rotating gear; 13. Limiting arc plate; 15. Gear groove; 16. Pull rope; 17. Protective cover; 18. Driven gear; 19. External gear ring; 20. Internal gear ring; 21. Positive arc magnet plate; 22. Arc lead plate; 23. Adjusting copper ball; 24. Positive magnet ball; 25. Rolling circular groove; 26. Heat dissipation vent; 27. Limiting ring plate; 28. Crescent-shaped cavity; 29. ​​Neodymium iron boron magnet ball; 30. Limiting lead ball. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1-9In an embodiment of the present invention, the reactor for preparing the aerogel precursor includes a rotating motor 2 rotatably mounted on the top of the reactor body 1. The reactor body 1 is equipped with monitoring sensors and a heating assembly. The monitoring sensors include a temperature sensor, a pressure sensor, a viscosity sensor, and a liquid level sensor. A discharge pipe is fixedly installed at the bottom of the reactor body 1, and a control valve is installed inside the discharge pipe. The reaction temperature of the reactor body 1 is controlled by the heating assembly. A main shaft 3 is fixedly mounted on the output shaft of the rotating motor 2, and the bottom end of the main shaft 3 extends into the reactor body 1. An adjustment cavity is formed inside the main shaft 3, and a stirring plate 4 is provided within the adjustment cavity for stirring during the stirring process. The stirring mechanism within the reactor body 1 allows for dynamic angle and vertical position adjustment in a fixed area. By altering the working posture and operating height of the stirring plate 4, the range of dead zones in the stirring is reduced, resulting in more uniform mixing of the raw materials. To install the protective cover 17 onto the reactor body 1, a connecting pipe is movably sleeved on the main shaft 3. The top end of the connecting pipe is fixedly connected to the inner top wall of the reactor body 1, and the bottom end is fixedly connected to the protective cover 17. Inside the protective cover 17, which is rotatably sleeved on the main shaft 3, is an adjustment mechanism that dynamically adjusts the angle and vertical position of the stirring plate 4 in different areas within the reactor body 1 during the stirring process, further reducing the influence of the blind zone in the stirring, and making the mixing of the raw materials more thorough and uniform.

[0023] To dynamically adjust the angle and height of the stirring plate 4, effectively reduce the dead angle of stirring, and ensure uniform mixing of raw materials, the stirring mechanism includes several rotating rods 5 rotatably installed in the adjustment cavity. Both ends of each rotating rod 5 extend outside the adjustment cavity and are respectively fixedly mounted with U-shaped plates 8. Arc-shaped plates 11 are respectively provided inside each of the U-shaped plates 8. Crossbars are rotatably installed on each of the U-shaped plates 8. A stirring plate 4 is fixedly installed at one end of each crossbar, and a rotating gear 12 is fixedly sleeved at the other end. The rotating gears 12 mesh with gear grooves 15 formed on the outer walls of the arc-shaped plates 11. Circular plates 6 are fixedly sleeved on each of the rotating rods 5. Two torsion springs 7 are movably sleeved on the lowest rotating rod 5. One end of each torsion spring 7 is fixedly connected to the corresponding circular plate 6. The torsion springs 7 allow the stirring plate 4 to return to its initial position when the device is not in use, facilitating future use. The other end of each torsion spring 7 is fixedly connected to the inner wall of the adjusting cavity. Several circular plates 6 are each fixedly mounted with a fixing plate, and several fixing plates are each fixedly mounted with a connecting rope 10. The other end of each connecting rope 10 is fixedly connected to the upper fixing plate. Two pull ropes 16 are fixedly mounted on the uppermost connecting rope 10 to reduce the friction between the pull rope 16 and the main shaft 3, thereby reducing the wear of the pull rope 16 and improving its efficiency. To extend the service life, two through holes are formed on the inner wall of the adjusting cavity. Linear bearings are fixedly installed in each of the two through holes. Two pull ropes 16 pass through the two linear bearings and are slidably connected to the inner walls of the two linear bearings. The other ends of the two pull ropes 16 extend into the protective cover 17 and are fixedly installed with adjusting copper balls 23. A rolling groove 25 is formed on the adjusting copper ball 23, and a positive magnet ball 24 is movably disposed within the rolling groove 25. To dissipate heat from the rapidly rolling positive magnet ball 24 and prevent it from overheating and weakening its magnetism, thus affecting the adjustment of the stirring plate 4's vertical rotation, a heat dissipation vent 26 is formed within the adjusting copper ball 23. The heat dissipation vent 26 communicates with the rolling groove 25. An adjusting ring is rotatably installed inside the protective cover 17. The adjusting ring is composed of several identical positive arc-shaped magnet plates 21 and arc-shaped lead plates 22. The rotation of the main shaft 3 drives the stirring plate 4 to rotate, while the two adjusting copper balls 23 and the positive magnet balls 24 are subjected to centrifugal force and move radially away from the main shaft 3. The movement of the adjusting copper balls 23 pulls the connecting rope 10 upward through the pull rope 16. The movement of the connecting rope 10 drives the fixed plate and the circular plate 6 to rotate counterclockwise. The counterclockwise rotation of the circular plate 6 causes the torsion spring 7 to change from a free state to a stressed state. At the same time, it drives the rotating rod 5, the U-shaped plate 8, and the stirring plate 4 located on the right side of the main shaft 3 to rotate counterclockwise upward. Since the rotating gear 12 meshes with the gear groove 15,Therefore, as the stirring plate 4 rotates upward, it drives the rotating gear 12 to roll along the gear groove 15, ultimately causing the stirring plate 4 to rotate itself and complete the angle adjustment. At the same time, the stirring plate 4 located on the left side of the main shaft 3 rotates downward while also rotating on its own axis, causing the two adjacent stirring plates 4 to move closer together and expand the stirring coverage area. When the positive magnetic ball 24 rotates to the area close to the positive arc-shaped magnetic plate 21 due to centrifugal force, the positive magnetic ball 24 cannot contact the positive arc-shaped magnetic plate 21 because like pole magnets repel each other. When the positive magnetic ball 24 rotates to the area close to the positive arc-shaped magnetic plate 21, the positive magnetic ball 24 cannot contact the positive arc-shaped magnetic plate 21. When the positive arc-shaped magnetic plate 21 moves away from and closer to the arc-shaped lead plate 22, the repulsive force disappears. Under the action of centrifugal force, the positive magnetic ball 24 contacts the arc-shaped lead plate 22 and rolls along its surface. Through this cycle of "approaching repulsion—moving away and rolling," the moving distance of the positive magnetic ball 24 continuously changes. This, in turn, dynamically fluctuates the traction length of the connecting rope 10, driving the stirring plate 4 to continuously rotate and move up and down while rotating with the main shaft 3. This achieves real-time dynamic adjustment of the stirring angle and height, effectively reducing the stirring dead zone and ensuring uniform mixing of the raw materials.

[0024] To enable the dynamic adjustment of the stirring plate 4 to extend beyond a fixed area within the reactor body 1, allowing for angle and height adjustments in different areas within the reactor body 1 during stirring, thereby reducing the area of ​​dead zones in the stirring process, the adjustment mechanism includes an external gear ring 19 fixedly sleeved on the main shaft 3 and two driven gears 18 rotatably mounted on the inner wall of the top of the protective cover 17. To rotatably mount the driven gears 18 within the protective cover 17, vertical rods are fixedly mounted at the top of each of the two driven gears 18, and both vertical rods are rotatably connected to the inner wall of the top of the protective cover 17. Both driven gears 18 mesh with the external gear ring 19. An internal gear ring 20 is rotatably mounted on the inner wall of the protective cover 17, and the internal gear ring 20 meshes with the two driven gears 18. The bottom of the inner gear ring 20 is fixedly connected to the adjusting ring via two connecting pillars. When the main shaft 3 rotates, it drives the outer gear ring 19 to rotate. The rotation of the outer gear ring 19 drives the driven gear 18 to rotate, and the rotation of the driven gear 18 drives the inner gear ring 20 to rotate, ultimately driving the adjusting ring to rotate. (Because the outer gear ring 19 and the inner gear ring 20 are of different sizes, their rotation speeds differ.) This causes the rotation speeds of the adjusting ring and the positive magnet ball 24 to be asynchronous. When the adjusting ring rotates along the main shaft 3, it changes the relative contact position between the arc-shaped lead plate 22 and the positive magnet ball 24, so that the dynamic adjustment of the stirring plate 4 is no longer limited to a fixed area within the reactor body 1, but rather the angle and height adjustment is performed in different areas within the reactor body 1 during the stirring process, further reducing the area of ​​dead zone in the stirring.

[0025] To remagnetize the positive magnet ball 24, restore its magnetism, and extend its service life, a magnetization mechanism is provided inside the adjusting copper ball 23. This mechanism remagnetizes the positive magnet ball 24 to restore its lost magnetism. The magnetization mechanism includes a crescent-shaped cavity 28 within the adjusting copper ball 23, which communicates with the rolling groove 25. A limiting ring plate 27 is slidably installed within the crescent-shaped cavity 28. A neodymium iron boron magnet ball 29 and a limiting lead ball 30 are slidably installed on the limiting ring plate 27. When the device has finished stirring the raw materials, and the positive magnet ball 24 experiences a temperature rise due to its rapid rolling on the arc-shaped lead plate 22, causing its magnetism to weaken, the positive magnet ball 24, the neodymium iron boron magnet ball 29, and the limiting lead ball 30 are no longer subjected to centrifugal force and return to their original positions. This allows the neodymium iron boron magnet ball 29 to contact the positive magnet ball 24 and remagnetize it, restoring its magnetism and extending its service life for future normal use.

[0026] To support the neodymium iron boron magnet ball 29 when the device is used to stir the raw materials, and to keep it stably away from the positive magnet ball 24, thus preventing interference with the positive magnet ball 24 rolling on the arc-shaped lead plate 22, and to keep the neodymium iron boron magnet ball 29 stably in contact with the positive magnet ball 24 when the device is not in use, thereby magnetizing the positive magnet ball 24, a limiting arc groove is formed inside the crescent-shaped cavity 28. A limiting arc plate 13 is slidably installed in the limiting arc groove, and a pushing lead ball 9 is fixedly installed at the bottom end of the limiting arc plate 13.

[0027] The working principle of the reaction vessel for preparing aerogel precursors provided by the present invention is as follows: In the initial state, the torsion spring 7 is in a free state, the diameter of the rolling groove 25 is larger than the positive magnet ball 24, and the squeezing force of the lead ball 9 on the limiting lead ball 30 makes the limiting lead ball 30 stably held at the bottom of the crescent-shaped cavity 28, so that the neodymium iron boron magnet ball 29 is stably held at the current position and is located at the rightmost side of the rolling groove 25 and keeps in contact with the positive magnet ball 24.

[0028] When this device is needed to prepare aerogel precursors, various raw materials are first added into the reactor body 1 through the feeding pipe. Then, the feeding pipe is closed and the rotating motor 2 is started to rotate, driving the main shaft 3 to rotate. The rotation of the main shaft 3 drives the stirring plate 4 to rotate, simultaneously causing the two adjusting copper balls 23 and the positive magnet ball 24 to be subjected to centrifugal force and move radially away from the main shaft 3. The movement of the adjusting copper balls 23 pulls the connecting rope 10 upward through the pull rope 16. The movement of the connecting rope 10 drives the fixed plate and the circular plate 6 to rotate counterclockwise. The counterclockwise rotation of the circular plate 6 causes... The torsion spring 7 changes from a free state to a stressed state, which simultaneously drives the rotating rod 5, U-shaped plate 8 and stirring plate 4 located on the right side of the main shaft 3 to rotate counterclockwise upward. Since the rotating gear 12 meshes with the gear groove 15, when the stirring plate 4 rotates upward, it will drive the rotating gear 12 to roll along the gear groove 15, and finally drive the stirring plate 4 to rotate itself to complete the angle adjustment. At the same time, the stirring plate 4 located on the left side of the main shaft 3 rotates downward and also rotates on its own, so that the two adjacent stirring plates 4 move closer to each other and expand the stirring coverage area.

[0029] When the positive magnetic ball 24 rotates to the area close to the positive arc-shaped magnetic plate 21 due to centrifugal force, it cannot contact the positive arc-shaped magnetic plate 21 because like pole magnets repel each other. When the positive magnetic ball 24 rotates to the area away from the positive arc-shaped magnetic plate 21 and close to the arc-shaped lead plate 22, the repulsive force disappears. Under the action of centrifugal force, the positive magnetic ball 24 contacts the arc-shaped lead plate 22 and rolls along its surface. Through this cycle of "approaching repulsion - moving away contact and rolling", the moving distance of the positive magnetic ball 24 changes continuously. Then, through the dynamic fluctuation of the traction length of the connecting rope 10, the stirring plate 4 is driven to rotate and rotate up and down while rotating with the main shaft 3, realizing the real-time dynamic adjustment of the stirring angle and height, effectively reducing the stirring dead angle, and making the raw materials evenly stirred.

[0030] Simultaneously, when the main shaft 3 rotates, it drives the outer gear ring 19 to rotate. The rotation of the outer gear ring 19 drives the driven gear 18 to rotate, and the rotation of the driven gear 18 drives the inner gear ring 20 to rotate, ultimately driving the adjusting ring to rotate. (Because the outer gear ring 19 and the inner gear ring 20 are of different sizes, their rotation speeds differ.) This causes the rotation speed of the adjusting ring and the positive magnet ball 24 to be out of sync. When the adjusting ring rotates along the main shaft 3, it changes the relative contact position between the arc-shaped lead plate 22 and the positive magnet ball 24, so that the dynamic adjustment of the stirring plate 4 is no longer limited to a fixed area within the reactor body 1, but rather the angle and height adjustment is performed in different areas within the reactor body 1 during the stirring process, further reducing the area of ​​dead zone in the stirring.

[0031] Simultaneously, when the adjusting copper ball 23 rotates under centrifugal force, the limiting lead ball 30 also experiences an outward centrifugal force. (Since the mass of the limiting lead ball 30 is greater than that of the neodymium iron boron magnet ball 29, the limiting lead ball 30 also experiences a greater outward centrifugal force than the neodymium iron boron magnet ball 29. Ultimately, this will push the neodymium iron boron magnet ball 29 upward along the limiting ring plate 27, separating it from the positive magnet ball 24, and finally squeezing the neodymium iron boron magnet ball 29 onto the top of the crescent-shaped cavity 28. (At this moment, the adjusting copper ball 23, under the action of centrifugal force, reaches the far left of the rolling groove 25), preventing the neodymium iron boron magnet ball 29 from interfering with the rolling of the positive magnet ball 24 on the arc-shaped lead plate 22.) The centrifugal force also pushes the lead ball 9 upward, squeezing the limiting lead ball 30, and finally applying the squeezing force to the neodymium iron boron magnet ball 29, making the neodymium iron boron magnet ball 29 more stable in its current position. After the device has finished stirring the raw materials, when the positive magnet ball 24 has been rolling rapidly on the arc-shaped lead plate 22 for a long time, causing its temperature to rise and its magnetism to weaken, the positive magnet ball 24, the neodymium iron boron magnet ball 29 and the limiting lead ball 30 are no longer subject to centrifugal force and return to their original initial positions. This allows the neodymium iron boron magnet ball 29 to contact the positive magnet ball 24 and remagnetize the positive magnet ball 24, restoring the magnetism of the positive magnet ball 24 and extending its service life for normal use next time.

[0032] Compared with related technologies, the reaction vessel for preparing aerogel precursors provided by the present invention has the following beneficial effects: Various raw materials are fed into the reactor body 1 through the feeding pipe. The feeding pipe is closed and the rotating motor 2 is started to rotate, which drives the stirring plate 4 to rotate. At the same time, the two adjusting copper balls 23 and the positive magnet ball 24 are subjected to centrifugal force and move away from the main shaft 3 radially. This causes the right stirring plate 4 to rotate upward and also rotate on its own axis, thus completing the angle adjustment. Meanwhile, the stirring plate 4 located on the left side of the main shaft 3 rotates downward and also rotates on its own axis, causing the two adjacent stirring plates 4 to move closer to each other and expand the stirring coverage area.

[0033] The repulsive force between the positive arc-shaped magnet plate 21 and the positive magnet ball 24 causes the moving distance of the positive magnet ball 24 to change continuously, thereby causing the traction length of the connecting rope 10 to fluctuate dynamically. This allows the driving stirring plate 4 to continuously rotate and move up and down while rotating with the main shaft 3, realizing real-time dynamic adjustment of the stirring angle and height, effectively reducing the stirring dead angle, and making the raw materials evenly stirred.

[0034] By using the different sizes of the outer gear ring 19 and the inner gear ring 20, the rotation speed of the adjusting ring and the positive magnet ball 24 is not synchronized. This allows the dynamic adjustment of the stirring plate 4 to no longer be limited to a fixed area within the reactor body 1, but to adjust the angle and height in different areas within the reactor body 1 during the stirring process, further reducing the area of ​​dead zone in the stirring.

[0035] The limiting lead ball 30 pushes the neodymium iron boron magnet ball 29 to the top of the crescent-shaped cavity 28, preventing the neodymium iron boron magnet ball 29 from interfering with the rolling of the positive magnet ball 24 on the arc-shaped lead plate 22. At the same time, the centrifugal force of the pushing lead ball 9 presses the neodymium iron boron magnet ball 29 upward, making the neodymium iron boron magnet ball 29 more stable in its current position. After the device has finished stirring the raw materials, the neodymium iron boron magnet ball 29 contacts and magnetizes the positive magnet ball 24, restoring the magnetism of the positive magnet ball 24 and extending its service life for normal use next time.

[0036] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A reactor for preparing aerogel precursors, comprising a rotating motor rotatably mounted on the top of the reactor body, a main shaft fixedly mounted on the output shaft of the rotating motor, and the bottom end of the main shaft extending into the reactor body, wherein an adjustment cavity is provided inside the main shaft, characterized in that a stirring mechanism is provided inside the adjustment cavity for dynamically adjusting the angle and vertical position of the stirring plate in a fixed area within the reactor body during stirring, thereby changing the working posture and working height of the stirring plate, reducing the range of dead zones in stirring, and making the raw materials mixed evenly; and an adjustment mechanism is provided inside a protective cover rotatably fitted on the main shaft for dynamically adjusting the angle and vertical position of the stirring plate in different areas within the reactor body during stirring, further reducing the influence of the blind zone in stirring, and making the raw materials stirred more fully and evenly.

2. The reaction vessel for preparing aerogel precursors according to claim 1, characterized in that, The stirring mechanism includes several rotating rods rotatably mounted within an adjustment cavity. Both ends of each rotating rod extend outside the adjustment cavity and are respectively fixedly mounted with a U-shaped plate. An arc-shaped plate is disposed within each of the U-shaped plates. A crossbar is rotatably mounted on each of the U-shaped plates. A stirring plate is fixedly mounted at one end of each crossbar, and a rotating gear is fixedly sleeved at the other end. Each of the rotating gears meshes with a gear groove formed on the outer wall of the arc-shaped plates. A circular plate is fixedly sleeved on each of the rotating rods. Two torsion springs are movably sleeved on the lowest rotating rod, with one end of each torsion spring engaging with a corresponding circular plate. The plates are fixedly connected, and the other ends of the two torsion springs are fixedly connected to the inner wall of the adjustment cavity. Several circular plates are fixedly mounted with fixing plates, and several fixing plates are fixedly mounted with connecting ropes. The other ends of several connecting ropes are fixedly connected to the upper fixing plate. Two pull ropes are fixedly mounted on the uppermost connecting rope, and the other ends of the two pull ropes extend into the protective cover and are fixedly mounted with adjusting copper balls. The adjusting copper balls have rolling grooves, and positive magnet balls are movably arranged in the rolling grooves. An adjusting ring is rotatably installed inside the protective cover, and the adjusting ring is composed of several positive arc-shaped magnet plates and arc-shaped lead plates of the same size.

3. The reaction vessel for preparing aerogel precursors according to claim 1, characterized in that, The adjusting mechanism includes an external gear ring fixedly sleeved on the main shaft and two driven gears rotatably mounted on the inner wall of the top of the protective cover. Both driven gears mesh with the external gear ring. An internal gear ring is rotatably mounted on the inner wall of the protective cover and meshes with the two driven gears. The bottom of the internal gear ring is fixedly connected to the adjusting ring through two connecting posts.

4. The reaction vessel for preparing aerogel precursors according to claim 2, characterized in that, The adjusting copper ball is equipped with a magnetizing mechanism to remagnetize the magnetism lost by the positive magnet ball. The magnetizing mechanism includes a crescent-shaped cavity opened in the adjusting copper ball, and the crescent-shaped cavity is connected to the rolling groove. A limiting ring plate is slidably installed in the crescent-shaped cavity, and a neodymium iron boron magnet ball and a limiting lead ball are slidably installed on the limiting ring plate.

5. The reaction vessel for preparing aerogel precursors according to claim 2, characterized in that, The adjusting copper ball has a heat dissipation port, and the heat dissipation port communicates with the rolling groove.

6. The reaction vessel for preparing aerogel precursors according to claim 4, characterized in that, A limiting arc groove is formed inside the crescent-shaped cavity, a limiting arc plate is slidably installed in the limiting arc groove, and a pushing shot is fixedly installed at the bottom end of the limiting arc plate.

7. The reaction vessel for preparing aerogel precursors according to claim 3, characterized in that, Each of the two gears has a vertical rod fixedly mounted on its top, and both vertical rods are rotatably connected to the top inner wall of the protective cover.

8. The reaction vessel for preparing aerogel precursors according to claim 1, characterized in that, A connecting tube is movably sleeved on the main shaft, and the top end of the connecting tube is fixedly connected to the top inner wall of the reactor body, while the bottom end of the connecting tube is fixedly connected to the protective cover.

9. The reaction vessel for preparing aerogel precursors according to claim 2, characterized in that, Two through holes are provided on the inner wall of the adjustment cavity. A linear bearing is fixedly installed in each of the two through holes. The two pull ropes pass through the two linear bearings and are slidably connected to the inner walls of the two linear bearings respectively.

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