A heterogeneous oxime rearrangement device for caprolactam
By installing heating rods and stirring devices inside the reactor, the problem of insufficient heating and mixing efficiency of existing equipment was solved, achieving uniform heating and stirring of materials inside the reactor, and improving the efficiency and product quality of the heterogeneous oxime reaction of caprolactam.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 福建天辰耀隆新材料有限公司
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-26
Smart Images
Figure CN224271176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical machinery technology, and in particular to a caprolactam heterogeneous oxime rearrangement device. Background Technology
[0002] Rearrangement equipment typically includes fixed-bed reactors, fluidized-bed reactors, and batch reactors. The reactors are usually equipped with stirring devices to ensure that various materials in the heterogeneous oxime reaction of caprolactam, such as cyclohexanone, ammonia, hydrogen peroxide, and catalysts, are fully mixed and homogeneous to quickly meet process requirements.
[0003] A search of Chinese patent publication number "CN217568723U" reveals "A condensation rearrangement device for the synthesis of nicosulfanilone". This device is equipped with a drive mechanism. The output of the motor drives the first bevel gear to rotate, which in turn drives the second and third bevel gears to rotate synchronously through meshing. The rotation of the second bevel gear drives the first and second stirring rods to rotate through the sleeve, thus stirring the inside of the reaction tank. The rotation of the third bevel gear drives the reciprocating screw to rotate, which drives the sliding sleeve to drive the four racks to move back and forth. The reciprocating movement of the racks drives the spur gear to drive the first stirring rod to rotate in both forward and reverse directions through the rotating shaft, thus stirring the inside of the reaction tank in different directions and improving the mixing efficiency of the raw materials inside the reaction tank.
[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. The heterogeneous oxime process of caprolactam usually requires heating. When this equipment is in use, it cannot heat the inside of its reaction vessel, and cannot further promote the mixing rate of the materials inside the equipment. The processing efficiency is insufficient and needs to be improved. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a caprolactam heterogeneous oxime rearrangement device, which solves the technical problem of insufficient processing efficiency in existing devices.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A caprolactam heterogeneous oxime rearrangement apparatus includes a reaction vessel and a fixed base, wherein the fixed base is located below the reaction vessel, and a heating groove is provided inside the shell of the reaction vessel;
[0010] An efficiency-enhancing structure is slidably installed inside the heating tank;
[0011] The efficiency-enhancing structure includes a slip ring, with multiple heating rods at the upper end of the slip ring. Each heating rod is located inside a heating groove and can heat the inside of the reactor. The fixed base has an annular groove inside, and an annular block is slidably installed inside the annular groove.
[0012] Preferably, a motor is fixedly mounted on the upper end of the fixed chassis, a transmission disc is fixedly mounted on the output shaft of the motor, the transmission disc is fixedly mounted to the ring block, electric push rods are symmetrically fixedly mounted on the upper end of the transmission disc, and the slip ring is fixedly mounted to the output shaft of the electric push rod.
[0013] Preferably, the upper end of the reactor is provided with a reactor cover, and the lower end of the reactor cover is provided with a stirring shaft, which is located inside the reactor.
[0014] Preferably, a bracket is fixedly installed on the circumferential surface of the reactor. The bracket is located outside the fixed base and the transmission plate. The fixed base is fixedly installed with the bracket. A discharge pipe is provided at the lower end of the reactor. The discharge pipe is located inside the electric push rod.
[0015] (III) Beneficial Effects
[0016] Firstly, by installing heating rods inside the heating tank, the materials inside the reactor can be heated, improving processing efficiency. At the same time, the operator can turn on the motor, causing the motor's output shaft to drive the transmission disc to move, which in turn indirectly drives the slip ring and heating rod to rotate inside the heating tank, avoiding heating dead zones. Uniform heating helps improve the consistency of the reaction, reduces the occurrence of side reactions in the heterogeneous oxime reaction of caprolactam, and improves product quality.
[0017] Secondly, by activating the electric push rod, the output shaft of the electric push rod can drive the slip ring to move the heating rod inside the heating tank, so that the height of the end of the heating rod is parallel to the height of the solution inside the reactor. This ensures that all parts of the solution inside the reactor are heated evenly, avoiding local overheating or underheating. Uniform temperature helps to improve the efficiency of the oxime reaction, obtain a purer product, and improve processing efficiency. Attached Figure Description
[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.
[0021] Figure 3 This is an exploded structural diagram of the reactor connection of this utility model;
[0022] Figure 4 This is an exploded structural diagram of the ring block connection of this utility model.
[0023] Legend: 11. Reactor; 12. Fixed base; 13. Ring groove; 14. Ring block; 15. Motor; 16. Transmission disc; 17. Electric push rod; 18. Heating tank; 19. Slip ring; 21. Heating rod; 22. Reactor cover; 23. Stirring shaft; 24. Support; 25. Discharge pipe. Detailed Implementation
[0024] This application provides a caprolactam heterogeneous oxime rearrangement device, effectively solving the technical problem of insufficient processing efficiency in existing devices. By installing heating rods inside the heating tank, the materials inside the reactor can be heated, improving processing efficiency. Simultaneously, the operator can turn on the motor, causing the motor's output shaft to drive the transmission disc to move, thereby indirectly driving the slip ring and heating rod to rotate inside the heating tank, avoiding heating dead zones. Uniform heating helps improve the consistency of the reaction, reduces the occurrence of side reactions in the caprolactam heterogeneous oxime reaction, and improves product quality. Furthermore, by turning on the electric push rod, the output shaft of the electric push rod can push the slip ring to move the heating rod inside the heating tank, making the height of the end of the heating rod parallel to the height of the solution inside the reactor. This ensures that all parts of the solution inside the reactor are heated evenly, avoiding local overheating or underheating. Uniform temperature helps improve the efficiency of the oxime reaction, obtaining a purer product and improving processing efficiency. Example
[0025] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem of insufficient processing efficiency of existing devices. The overall idea is as follows:
[0026] To address the problems existing in the prior art, this utility model provides a caprolactam heterogeneous oxime rearrangement device, including a reaction vessel 11 and a fixed base 12. The fixed base 12 is located below the reaction vessel 11, and a heating groove 18 is provided inside the shell of the reaction vessel 11.
[0027] The heating tank 18 has an efficiency-enhancing structure that slides inside;
[0028] The efficiency-enhancing structure includes a slip ring 19, with multiple heating rods 21 at the upper end of the slip ring 19. Each heating rod 21 is located inside the heating tank 18 and can heat the inside of the reactor 11. A ring groove 13 is opened inside the fixed base 12, and a ring block 14 is slidably installed inside the ring groove 13. A motor 15 is fixedly installed at the upper end of the fixed base 12, and a transmission disc 16 is fixedly installed on the output shaft of the motor 15.
[0029] By installing heating rods 21 inside the heating tank 18, the materials inside the reactor 11 can be heated, improving processing efficiency. At the same time, the operator can turn on the motor 15, causing the output shaft of the motor 15 to drive the transmission disk 16 to move, which in turn indirectly drives the slip ring 19 and the heating rods 21 to rotate inside the heating tank 18, avoiding heating dead zones. Uniform heating helps to improve the consistency of the reaction, reduce the occurrence of side reactions in the heterogeneous oxime reaction of caprolactam, and improve product quality.
[0030] The transmission disc 16 is fixedly installed with the ring block 14. Electric push rods 17 are symmetrically fixedly installed on the upper end of the transmission disc 16. The slip ring 19 is fixedly installed with the output shaft of the electric push rod 17.
[0031] By activating the electric push rod 17, the output shaft of the electric push rod 17 can push the slip ring 19 to move the heating rod 21 inside the heating tank 18, so that the height of the end of the heating rod 21 is parallel to the height of the solution inside the reactor 11. This ensures that all parts of the solution inside the reactor 11 are heated evenly, avoiding local overheating or underheating. Uniform temperature helps to improve the efficiency of the oxime reaction, obtain a purer product, and improve processing efficiency.
[0032] The upper end of the reactor 11 is provided with a lid 22, and the lower end of the lid 22 is provided with a stirring shaft 23, which is located inside the reactor 11.
[0033] By setting the vessel lid 22, the staff can put the materials for the heterogeneous oximeting of caprolactam and auxiliary processing into the reactor 11, and stir the materials inside the reactor 11 by turning on the stirring shaft 23.
[0034] A bracket 24 is fixedly installed on the circumferential surface of the reactor 11. The bracket 24 is located outside the fixed base 12 and the transmission plate 16. The fixed base 12 is fixedly installed with the bracket 24. A discharge pipe 25 is provided at the lower end of the reactor 11. The discharge pipe 25 is located inside the electric push rod 17.
[0035] By setting up the discharge pipe 25, the staff can connect the conveying pipe to the discharge pipe 25 and open the valve of the discharge pipe 25 to complete the collection and transfer of the solution inside.
[0036] Working principle:
[0037] In the first step, when using the equipment, the operator can first put the materials for processing the heterogeneous oxime of caprolactam and the auxiliary processing into the reactor 11. Then, the operator can adjust the height of the heating rod 21 according to the solution height inside the reactor 11, so that the height of the end of the heating rod 21 is parallel to the solution height inside the reactor 11. At this time, the operator can turn on the electric push rod 17, so that the output shaft of the electric push rod 17 pushes the slip ring 19 to drive the heating rod 21 to move inside the heating tank 18 until the height of the end of the heating rod 21 is parallel to the solution height inside the reactor 11, and then turn off the electric push rod 17.
[0038] The second step involves the operator turning on the heating rod 21 to heat the area of the heating tank 18, which then conducts heat to the reactor 11 to heat the materials inside. The operator can then turn on the motor 15, causing the output shaft of the motor 15 to drive the transmission disc 16 to move, which in turn indirectly drives the slip ring 19 and the heating rod 21 to rotate inside the heating tank 18. This improves the heating efficiency of the solution inside the reactor 11. After the reaction is completed, the operator can connect the feed pipe to the discharge pipe 25 and open the valve of the discharge pipe 25 to complete the collection and transfer of the solution inside.
[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A caprolactam heterogeneous oxime rearrangement apparatus, comprising a reactor (11) and a fixed base (12), wherein the fixed base (12) is located below the reactor (11), and a heating groove (18) is provided inside the shell of the reactor (11). Its characteristics are: The heating tank (18) has an efficiency-enhancing structure that is slidably installed inside; The efficiency-enhancing structure includes a slip ring (19), and the upper end of the slip ring (19) is provided with a plurality of heating rods (21). Each heating rod (21) is located inside the heating tank (18) and can heat the inside of the reactor (11).
2. The caprolactam heterogeneous oxime rearrangement apparatus as described in claim 1, characterized in that, The fixed chassis (12) has an annular groove (13) inside. Among them, a ring block (14) is slidably installed inside the annular groove (13).
3. The caprolactam heterogeneous oxime rearrangement apparatus according to any one of claims 1-2, characterized in that, A motor (15) is fixedly installed on the upper end of the fixed chassis (12), and a transmission disc (16) is fixedly installed on the output shaft of the motor (15). The transmission disc (16) is fixedly installed with the ring block (14). Among them, an electric push rod (17) is symmetrically fixedly installed on the upper end of the transmission disk (16), and the slip ring (19) is fixedly installed on the output shaft of the electric push rod (17).
4. The caprolactam heterogeneous oxime rearrangement apparatus as described in claim 1, characterized in that, The upper end of the reactor (11) is provided with a lid (22), and the lower end of the lid (22) is provided with a stirring shaft (23). The stirring shaft (23) is located inside the reactor (11).
5. The caprolactam heterogeneous oxime rearrangement apparatus as described in claim 3, characterized in that, A bracket (24) is fixedly installed on the circumferential surface of the reactor (11). The bracket (24) is located on the outside of the fixed chassis (12) and the transmission disc (16).
6. The caprolactam heterogeneous oxime rearrangement apparatus as described in claim 3, characterized in that, The fixed chassis (12) and the bracket (24) are fixedly installed; The reactor (11) is provided with a discharge pipe (25) at its lower end.