A reaction kettle for chemical production

Abstract

This utility model discloses a chemical production reactor, including an external insulation mechanism, an overload prevention mechanism, and an overload adjustment mechanism. The external insulation mechanism includes a reactor body, a support frame, a drive motor, an output shaft, an annular pipe, an addition pipe, and a discharge pipe. The overload prevention mechanism includes an overload prevention pipe, an overload prevention rod, an overload prevention groove, an extension frame, an inner moving block, an overload prevention spring, and a moving sleeve. The annular pipe, addition pipe, and discharge pipe form a closed-loop heat exchange system, solving the problem of uneven temperature control in traditional reactors. The annular pipe sleeve is fitted onto the outer wall of the reactor body, forming a complete heat conduction channel to ensure uniform heating of all parts of the reactor body. The overload prevention mechanism adopts a mechanical overload protection design, effectively solving the safety hazards of traditional stirring systems when facing overload conditions, and realizing automatic disconnection of power transmission. This purely mechanical protection mechanism has a rapid response, requires no electrical control system, has high reliability, and is easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and more specifically, to a reaction vessel for chemical production. Background Technology

[0002] Traditional reactors often use jacketed heating or external heating furnaces. These methods have obvious problems with uneven heat distribution. The bottom and side walls of the reactor receive heat differently, resulting in a significant temperature gradient inside the reactor. This temperature difference is particularly prominent in large reactors. Uneven temperature can lead to inconsistent reaction rates, causing local overheating or incomplete reactions, which directly affects product quality and yield.

[0003] Traditional mixing systems lack effective overload protection mechanisms. When the viscosity of the reactants suddenly increases or the mixing system encounters foreign objects, the mixing motor will continue to output torque until it reaches the motor's limit. In this case, either the motor will overheat and be damaged, or the mixing shaft or mixing blades will deform or break, resulting in equipment damage and production interruption.

[0004] More importantly, existing systems lack the ability to adjust overload thresholds. The optimal stirring intensity and overload threshold vary for different reaction stages and different materials. Traditional systems often use fixed parameter designs and cannot be flexibly adjusted according to actual production needs. This rigid design greatly limits the application range and adaptability of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a reaction vessel for chemical production to solve the technical problems mentioned in the background art, such as the difficulty in controlling the temperature of the vessel body and the difficulty in handling overload conditions with stirring.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a chemical production reactor, comprising an external insulation mechanism, an overload prevention mechanism, and an overload adjustment mechanism. The external insulation mechanism includes a reactor body, a support frame, a drive motor, an output shaft, an annular tube, an addition pipe, and a discharge pipe. The support frame is installed at the top of the reactor body, the drive motor is installed on the support frame, the output shaft is fitted with the output end of the drive motor, the annular tube is fitted onto the reactor body, and the addition pipe and discharge pipe are installed at both ends of the annular tube. The overload prevention mechanism includes overload protection... The system includes a tube, an overload protection rod, an overload protection groove, an extension frame, an inner moving block, an overload protection spring, and a moving sleeve. The overload protection tube is connected to the output shaft. The overload protection rod can extend into the overload protection tube. The overload protection groove is located on the side wall of the overload protection rod. The extension frame is laterally slidably installed on the side wall of the overload protection tube. The inner moving block is located inside the side wall of the overload protection tube. The moving sleeve slides directionally on the inner and outer walls of the overload protection tube. The overload protection spring is installed between the moving sleeve and the inner moving block. The overload protection spring pushes the inner moving block to cause the extension frame to extend into the overload protection groove, thus linking the overload protection rod and the overload protection tube.

[0009] The present invention is further configured such that the overload adjustment mechanism includes an outer toothed sleeve, ball blocks, rotating teeth, a lead screw, counter-shrinking blocks, counter-shrinking springs, and an outer fixed ring. The outer toothed sleeve is rotatably mounted on the outer wall of the overload protection pipe. The rotating teeth are rotatably mounted on the outer wall of the overload protection pipe. The outer toothed sleeve is meshed with the rotating teeth. The lead screw is connected to the rotating teeth. The movable sleeve is threadedly driven by the lead screw. The outer fixed ring is fixedly mounted on the outer wall of the overload protection pipe. Multiple sets of counter-shrinking blocks are slidably mounted at the bottom end of the outer fixed ring. Counter-shrinking springs are mounted between opposing counter-shrinking blocks. Multiple sets of ball blocks are mounted at the top end of the outer toothed sleeve. The ball blocks are sequentially inserted between the counter-shrinking blocks to make the outer toothed sleeve rotate stably and to make the movable sleeve compress or stretch the overload protection spring.

[0010] The present invention is further configured such that a stirring shaft is rotatably mounted on the internal support of the vessel body, and stirring blades are mounted on the stirring shaft. The stirring shaft and the stirring blades are connected to achieve uniform stirring of the reaction materials and improve reaction efficiency.

[0011] The present invention is further configured such that a discharge component is installed at the bottom end of the reactor body and an addition component is installed at the top end of the reactor body. The discharge component facilitates the discharge of the product after the reaction is completed, reduces material residue, and improves the product recovery rate.

[0012] The present invention is further configured such that a pipe connection plate is installed at one end of the overload protection pipe, and the pipe connection plate is connected to the output shaft in a cooperative manner, thereby enhancing the connection strength and improving the transmission stability.

[0013] The present invention is further configured such that a rod connecting plate is installed at one end of the overload protection rod, and the rod connecting plate is connected to the stirring shaft, thereby ensuring that the power is effectively transmitted to the stirring system.

[0014] The present invention is further provided that an installation frame is installed at the outer end of the vessel body, and the device is fixed in the required position by the fixed installation frame. The installation frame provides fixed support for the entire equipment and ensures that the equipment is stable in position during operation.

[0015] The present invention is further configured such that a connecting plate is installed on one side of the adding pipe and the discharging pipe, and the adding pipe and the discharging pipe are connected to an external circulating heating equipment through the connecting plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a reaction vessel for chemical production, which has the following advantages:

[0018] This invention features an external insulation mechanism that forms a closed-loop heat exchange system through an annular pipe, an adding pipe, and a discharging pipe. This solves the problem of uneven temperature control in traditional reactors. The annular pipe is fitted onto the outer wall of the reactor body, forming a complete heat conduction channel to ensure uniform heating of all parts of the reactor body and effectively eliminate temperature gradients. The adding and discharging pipes are connected to external circulating heating equipment to achieve continuous circulation of the heat transfer medium, making temperature control more precise and stable, and effectively improving product quality and reaction efficiency.

[0019] This utility model is equipped with an overload protection mechanism. The overload protection mechanism adopts a mechanical overload protection design, which effectively solves the safety hazards of traditional mixing systems when facing overload. When the mixing system encounters excessive resistance, the pressure of the overload protection spring is insufficient to maintain the engagement between the extension frame and the overload protection groove, causing the overload protection rod and the overload protection tube to disengage, thereby achieving automatic disconnection of power transmission. It has high reliability and is easy to maintain.

[0020] This invention incorporates an overload adjustment mechanism, which allows for flexible adjustment of the overload protection threshold to meet the needs of different operating conditions and material characteristics. By rotating the outer gear sleeve, the rotating gear and lead screw rotate, thereby pushing the moving sleeve to compress or stretch the anti-overload spring, changing the trigger threshold of the overload protection. The design of the ball block and the shrinking block provides a segmented positioning function, making the adjustment process more precise and controllable. The operator can clearly perceive each adjustment level. This design enables the equipment to adapt to the stirring requirements of materials with different viscosities and different reaction stages, greatly expanding the application range of the reactor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel in this utility model;

[0023] Figure 3 This is a schematic diagram of the overload protection mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the overload prevention mechanism and the overload adjustment mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the overload prevention mechanism and the overload adjustment mechanism in this utility model.

[0026] In the diagram: 1. Kettle body; 2. Support frame; 3. Drive motor; 4. Output shaft; 5. Annular tube; 6. Adding tube; 7. Discharge tube; 8. Overload protection tube; 9. Overload protection rod; 10. Overload protection groove; 11. Extension frame; 12. Inner moving block; 13. Overload protection spring; 14. Moving sleeve; 15. Outer toothed sleeve; 16. Ball block; 17. Rotating tooth; 18. Lead screw; 19. Reduction block; 20. Reduction spring; 21. Outer retaining ring; 22. Stirring shaft; 23. Stirring blade; 24. Discharge assembly; 25. Adding assembly; 26. Pipe connection plate; 27. Rod connection plate; 28. Mounting frame; 29. ​​Connecting plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A chemical production reactor includes an external insulation mechanism, an overload prevention mechanism, and an overload adjustment mechanism. The external insulation mechanism includes a reactor body 1, a support frame 2, a drive motor 3, an output shaft 4, an annular pipe 5, an addition pipe 6, and a discharge pipe 7. The support frame 2 is installed at the top of the reactor body 1, the drive motor 3 is installed on the support frame 2, the output shaft 4 is fitted with the output end of the drive motor 3, the annular pipe 5 is fitted onto the reactor body 1, and the addition pipe 6 and the discharge pipe 7 are installed at both ends of the annular pipe 5. The overload prevention mechanism includes an overload prevention pipe 8, an overload prevention rod 9, an overload prevention groove 10, an extension frame 11, and an internal moving block. 12. Overload protection spring 13 and moving sleeve 14, overload protection tube 8 is connected to output shaft 4, overload protection rod 9 can extend into overload protection tube 8, overload protection groove 10 is set on the side wall of overload protection rod 9, extension frame 11 is slidably installed on the side wall of overload protection tube 8, inner moving block 12 is inside the side wall of overload protection tube 8, moving sleeve 14 slides directionally on the inner and outer walls of overload protection tube 8, overload protection spring 13 is installed between moving sleeve 14 and inner moving block 12, overload protection spring 13 pushes inner moving block 12 to make extension frame 11 extend into overload protection groove 10, so that overload protection rod 9 and overload protection tube 8 are linked.

[0031] In this embodiment, the annular pipe 5 is fitted onto the outer wall of the vessel body 1 and connected to an external circulating heating device via the addition pipe 6 and the discharge pipe 7. When the reaction requires heating or heat preservation, the heat transfer medium enters the annular pipe 5 from the addition pipe 6, circulates around the vessel body 1, and then exits from the discharge pipe 7, forming a closed-loop circulation system. This design ensures that heat is evenly transferred to the reactants inside the vessel body 1, guaranteeing a uniform and stable reaction temperature, improving reaction efficiency and product quality. The overload protection mechanism automatically disengages when the stirring system encounters excessive resistance, protecting the reactor. When the equipment is working normally, the overload protection pipe 8 is connected to the drive motor 3 through the output shaft 4, and the overload protection rod 9 is connected to the stirring shaft 22 through the rod connecting plate 27. The extension frame 11 extends into the overload protection groove 10 on the overload protection rod 9 under the push of the overload protection spring 13, so that the overload protection pipe 8 and the overload protection rod 9 are linked. When the stirring encounters excessive resistance, the torque exceeds the preset force of the overload protection spring 13, and the extension frame 11 is forced to disengage from the overload protection groove 10, so that the drive motor 3 is disconnected from the stirring shaft 22, preventing damage to the motor and the stirring system.

[0032] The overload adjustment mechanism includes an outer gear sleeve 15, ball blocks 16, rotating teeth 17, a lead screw 18, counter-shrinking blocks 19, counter-shrinking springs 20, and an outer retaining ring 21. The outer gear sleeve 15 is rotatably mounted on the outer wall of the overload protection pipe 8. The rotating teeth 17 are rotatably mounted on the outer wall of the overload protection pipe 8. The outer gear sleeve 15 is meshed with the rotating teeth 17. The lead screw 18 is connected to the rotating teeth 17. The movable sleeve 14 is threadedly driven to the lead screw 18. The outer retaining ring 21 is fixedly mounted on the outer wall of the overload protection pipe 8. Multiple sets of counter-shrinking blocks 19 are slidably mounted at the bottom end of the outer retaining ring 21. The counter-shrinking springs 20 are mounted between the opposing counter-shrinking blocks 19. Multiple sets of ball blocks 16 are mounted at the top end of the outer gear sleeve 15. The ball blocks 16 are inserted sequentially between the counter-shrinking blocks 19 to make the outer gear sleeve 15 rotate stably and to compress or stretch the overload protection springs 13 by the movable sleeve 14.

[0033] In this embodiment, the operator rotates the outer gear sleeve 15, which in turn drives the rotating gear 17 to rotate through meshing with it. The rotating gear 17 then drives the lead screw 18 to rotate, and the lead screw 18 pushes the movable sleeve 14 to move on the overload protection tube 8 through a threaded connection. The position change of the movable sleeve 14 directly affects the compression or tension of the overload protection spring 13, thereby adjusting the elasticity of the overload protection spring 13. The design of the ball block 16 and the counterweight block 19 provides segmented rotation sensing, making the adjustment process more precise and controllable. In this way, the trigger threshold of the overload protection can be flexibly adjusted according to the viscosity of different reactants and the stirring requirements.

[0034] Please see Figures 1-5 As a supplementary embodiment of a chemical production reactor with external insulation mechanism, overload prevention mechanism and overload adjustment mechanism: An agitator shaft 22 is rotatably mounted inside the reactor body 1, and an agitator blade 23 is mounted on the agitator shaft 22. A discharge assembly 24 is mounted at the bottom end of the reactor body 1, and an addition assembly 25 is mounted at the top end of the reactor body 1. A pipe connection plate 26 is mounted at one end of the overload prevention pipe 8, and the pipe connection plate 26 is connected to the output shaft 4. A rod connection plate 27 is mounted at one end of the overload prevention rod 9, and the rod connection plate 27 is connected to the agitator shaft 22. A mounting bracket 28 is mounted at the outer end of the reactor body 1, and the device is fixed in the required position by fixing the mounting bracket 28. A connecting plate 29 is mounted on the side of one end of the addition pipe 6 and the discharge pipe 7, and the addition pipe 6 and the discharge pipe 7 are connected to the external circulating heating equipment by the connecting plate 29.

[0035] More specifically, reactants are added to the vessel 1 via the addition component 25. Simultaneously, the temperature of the vessel 1 is adjusted to the required reaction temperature through the circulation system of the annular pipe 5. The drive motor 3 is started, and the stirring shaft 22 is rotated through the output shaft 4, the overload protection pipe 8, and the overload protection rod 9. The stirring blades 23 uniformly stir the reactants to promote the reaction. At the same time, the annular pipe 5 continuously circulates the heat transfer medium to maintain the reaction temperature. If the viscosity of the reactants suddenly increases or the stirring system encounters foreign objects that obstruct the flow, causing the torque to exceed the set threshold, the overload protection mechanism automatically disconnects, stops stirring, and protects the equipment. The operator can adjust the overload threshold by rotating the outer toothed sleeve 15 to adapt to different working conditions, or resume normal stirring after troubleshooting. After the reaction is completed, the finished product is discharged through the discharge component 24, completing one production cycle.

[0036] In summary, during the use or operation of the overall equipment: when an external insulation mechanism is required, the external insulation mechanism controls the temperature of the vessel 1 through the annular pipe 5. The annular pipe 5 is fitted onto the outer wall of the vessel 1 and is connected to the external circulating heating equipment through the addition pipe 6 and the discharge pipe 7. When the reaction requires heating or insulation, the heat transfer medium enters the annular pipe 5 from the addition pipe 6, circles the vessel 1 once, and is discharged from the discharge pipe 7, forming a closed-loop circulation system. This design ensures that heat is evenly transferred to the reactants inside the vessel 1, ensuring a uniform and stable reaction temperature, and improving reaction efficiency and product quality.

[0037] When the overload protection mechanism is in operation, it automatically disengages when the stirring system encounters excessive resistance, thus protecting the equipment. During normal operation, the overload protection pipe 8 is connected to the drive motor 3 via the output shaft 4, and the overload protection rod 9 is connected to the stirring shaft 22 via the rod connecting plate 27. The extension frame 11 extends into the overload protection groove 10 on the overload protection rod 9 under the push of the overload protection spring 13, so that the overload protection pipe 8 and the overload protection rod 9 are linked. When the stirring encounters excessive resistance, the torque exceeds the preset force of the overload protection spring 13, and the extension frame 11 is forced to disengage from the overload protection groove 10, thereby disconnecting the drive motor 3 from the stirring shaft 22 and preventing damage to the motor and the stirring system.

[0038] When the overload adjustment mechanism is in operation, it is used to adjust the trigger threshold of the overload protection mechanism. The operator rotates the outer gear sleeve 15, which drives the rotating gear 17 to rotate through meshing with the rotating gear 17. The rotating gear 17 drives the lead screw 18 to rotate, and the lead screw 18 pushes the moving sleeve 14 to move on the overload protection tube 8 through a threaded connection. The change in position of the moving sleeve 14 directly affects the compression or tension of the overload protection spring 13, thereby adjusting the elasticity of the overload protection spring 13. The design of the ball block 16 and the counterweight block 19 provides segmented rotation sensing, making the adjustment process more precise and controllable. In this way, the trigger threshold of the overload protection can be flexibly adjusted according to the viscosity and stirring requirements of different reactants.

[0039] The reactants are added into the vessel 1 by adding component 25. At the same time, the temperature of the vessel 1 is adjusted to the required reaction temperature through the circulation system of the annular pipe 5. The drive motor 3 is started, and the stirring shaft 22 is rotated through the output shaft 4, the overload protection pipe 8, and the overload protection rod 9. The stirring blades 23 uniformly stir the reactants to promote the reaction. Meanwhile, the annular pipe 5 continuously circulates the heat transfer medium to maintain the reaction temperature. If the viscosity of the reactants suddenly increases or the stirring system encounters foreign objects that obstruct the flow, causing the torque to exceed the set threshold, the overload protection mechanism will automatically disconnect and stop stirring to protect the equipment. The operator can adjust the overload threshold by rotating the outer toothed sleeve 15 to adapt to different working conditions, or resume normal stirring after troubleshooting. After the reaction is completed, the finished product is discharged through the discharge component 24, completing one production cycle.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chemical production reactor, comprising an external insulation mechanism, an overload protection mechanism, and an overload adjustment mechanism, characterized in that: The external insulation mechanism includes a vessel body (1), a support frame (2), a drive motor (3), an output shaft (4), an annular tube (5), an adding tube (6), and a discharging tube (7). The support frame (2) is installed on the top end of the vessel body (1), the drive motor (3) is installed on the support frame (2), the output shaft (4) is installed on the output end of the drive motor (3), the annular tube (5) is fitted onto the vessel body (1), and the adding tube (6) and the discharging tube (7) are installed at both ends of the annular tube (5). The overload protection mechanism includes an overload protection tube (8) and an overload protection rod (9). The system includes an overload protection groove (10), an extension frame (11), an inner moving block (12), an overload protection spring (13), and a moving sleeve (14). The overload protection tube (8) is connected to the output shaft (4). The overload protection groove (10) is set on the side wall of the overload protection rod (9). The extension frame (11) is slidably installed on the side wall of the overload protection tube (8). The inner moving block (12) is inside the side wall of the overload protection tube (8). The moving sleeve (14) slides directionally on the inner and outer walls of the overload protection tube (8). The overload protection spring (13) is installed between the moving sleeve (14) and the inner moving block (12).

2. The chemical production reactor according to claim 1, characterized in that: The overload adjustment mechanism includes an outer gear sleeve (15), a ball block (16), a rotating tooth (17), a lead screw (18), a counter-shrinking block (19), a counter-shrinking spring (20), and an outer fixed ring (21). The outer gear sleeve (15) is rotatably mounted on the outer wall of the overload protection pipe (8). The rotating tooth (17) is rotatably mounted on the outer wall of the overload protection pipe (8). The outer gear sleeve (15) is meshed with the rotating tooth (17). The lead screw (18) is connected to the rotating tooth (17). The moving sleeve (14) is threadedly driven to the lead screw (18). The outer fixed ring (21) is fixedly mounted on the outer wall of the overload protection pipe (8). Multiple sets of counter-shrinking blocks (19) are slidably mounted at the bottom end of the outer fixed ring (21). The counter-shrinking spring (20) is mounted between the opposing counter-shrinking blocks (19). Multiple sets of ball blocks (16) are mounted at the top end of the outer gear sleeve (15).

3. The chemical production reactor according to claim 1, characterized in that: The internal support of the vessel body (1) is equipped with a stirring shaft (22), and stirring blades (23) are installed on the stirring shaft (22).

4. A chemical production reactor according to claim 1, characterized in that: The bottom end of the vessel body (1) is provided with a discharge component (24), and the top end of the vessel body (1) is provided with an addition component (25).

5. A chemical production reactor according to claim 1, characterized in that: One end of the overload protection pipe (8) is equipped with a pipe connection plate (26), and the pipe connection plate (26) is connected to the output shaft (4).

6. A chemical production reactor according to claim 3, characterized in that: One end of the overload protection rod (9) is equipped with a rod connecting plate (27), and the rod connecting plate (27) is connected to the stirring shaft (22).

7. A chemical production reactor according to claim 1, characterized in that: The outer end of the vessel body (1) is provided with a mounting bracket (28), and the device is fixed in the required position by fixing the mounting bracket (28).

8. A chemical production reactor according to claim 1, characterized in that: A connecting plate (29) is installed on one side of the adding pipe (6) and the discharging pipe (7), and the adding pipe (6) and the discharging pipe (7) are connected to the external circulating heating equipment through the connecting plate (29).

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