A device and system for removing impurities and purifying a heavy caprolactam residue
By setting up a purification container inside the reactor and utilizing an adsorption material, the problem of uneven stirring of the heavy residual liquid in the upper part of the reactor was solved, achieving uniform purification and upgrading of the heavy residual liquid throughout the reactor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGMING RISUN CHEM CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, the stirring effect of the heavy residual liquid in the upper part of the reactor is not good, resulting in poor impurity removal and purification effects.
A purification container is installed inside the reactor, extending from the top to the bottom. The container is filled with adsorbent material, and the upper part is larger than the lower part to increase the contact area between the heavy residual liquid and the adsorbent material. The container is stirred by a stirring device.
This improved the adsorption material's ability to remove impurities and purify heavy residual liquid in all areas of the reactor, solved the problem of poor adsorption effect caused by poor fluid flow in the upper part, and enhanced the overall processing capacity.
Smart Images
Figure CN224585394U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of caprolactam heavy residue treatment technology, and in particular to an apparatus and system for removing impurities and purifying caprolactam heavy residue. Background Technology
[0002] When removing impurities and purifying heavy caprolactam residue, the stirring part of the reactor's agitator is located at the bottom of the reactor, resulting in better stirring of the heavy residue in the lower part of the reactor, thus enabling better removal and purification of impurities. However, the heavier residue is less stirred closer to the top of the reactor, making it impossible to achieve good removal and purification of impurities in the upper part of the reactor. Utility Model Content
[0003] The purpose of this application is to provide an apparatus and system for removing impurities and purifying caprolactam residual liquid.
[0004] The embodiments of this application adopt the following technical solution: an apparatus for removing impurities and purifying caprolactam heavy residue, comprising:
[0005] The reactor body has a feed inlet, which is used to hold the heavy residual liquid to be treated that is fed in through the feed inlet;
[0006] A stirring device, wherein the stirring part is located in the lower part of the reactor body, is used to stir the heavy residual liquid in the reactor body;
[0007] A purification container is disposed within the reactor body, extending from the upper part to the lower part of the reactor body. The purification container is filled with adsorbent material and has mesh openings to allow the heavy residual liquid to contact the adsorbent material within the purification container. The adsorbent material can remove impurities and purify the heavy residual liquid. The upper part of the purification container extends inward towards the reactor body, and the amount of adsorbent material filled in the purification container decreases from top to bottom.
[0008] In some embodiments, the apparatus includes a plurality of the impurity removal containers disposed on the inner wall of the reactor body.
[0009] In some embodiments, the reactor body is a cylindrical barrel with a circular cross-section, and a plurality of the impurity removal containers are uniformly arranged in a ring along the inner wall of the reactor body around its axis.
[0010] In some embodiments, the device further includes a lower support base, one end of which is fixed to the inner wall of the reactor body, and the other end of which extends toward the inner side of the reactor body, and the bottom of the impurity removal container is fixed to the lower support base.
[0011] In some embodiments, the device further includes an upper support base located above the lower support base;
[0012] One end of the upper support is fixed to the inner wall of the reactor body, and the other end of the lower support extends into the inner side of the reactor body. The top of the impurity removal container is fixed to the upper support.
[0013] In some embodiments, the impurity removal container is a columnar body, with one side of the columnar body close to the inner wall of the reactor body fitting against the inner wall of the reactor body, and the side of the columnar body close to the center of the reactor body inclined from top to bottom toward the inner wall of the reactor body.
[0014] In some embodiments, the adsorbent material is molecular activated carbon, which is uniformly filled in the impurity removal container.
[0015] In some embodiments, the pore size of the mesh is smaller than the outer diameter of the adsorbent material.
[0016] In some embodiments, a discharge port is provided at the bottom of the side of the reactor body, through which the solution after adsorption treatment is discharged from the reactor body.
[0017] This application also provides a system for removing impurities and purifying caprolactam heavy residue, including the apparatus described in any of the above embodiments.
[0018] The beneficial effects of the embodiments of this application are as follows:
[0019] This impurity removal container connects to the top and bottom of the reactor. Its relatively long length increases the contact area between the heavy residual liquid and the adsorbent material, effectively enhancing the adsorption capacity of the adsorbent material for impurities in the heavy residual liquid. The container's design, wider at the top and narrower at the bottom, addresses the problem of poor adsorption of the upper heavy residual liquid by the adsorbent material due to the stronger fluid flow near the bottom and weaker flow at the top. This design rationally utilizes the internal structural space of the reactor, effectively improving the adsorption capacity of the adsorbent material for the entire heavy residual liquid within the reactor. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the apparatus used for removing impurities and purifying caprolactam residue in this application.
[0022] Figure 2 This is a schematic diagram of the structure of the impurity removal container of this application.
[0023] Figure label:
[0024] 1. Reactor body; 11. Feed inlet; 12. Discharge outlet; 2. Stirring device; 21. Motor; 22. Stirring paddle; 3. Impurity removal container; 31. Mesh; 4. Lower support base; 5. Upper support base. Detailed Implementation
[0025] Various embodiments and features of this application are described herein with reference to the accompanying drawings.
[0026] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.
[0027] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.
[0028] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.
[0029] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application.
[0030] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.
[0031] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.
[0032] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.
[0033] This application provides an apparatus for removing impurities and purifying caprolactam residual liquid, such as... Figure 1 As shown, the device may include a reaction vessel body 1, a stirring device 2, and a purification container 3.
[0034] The reactor body 1 has a feed inlet 11, through which the heavy residual liquid to be treated can enter the reactor body 1. A discharge outlet 12 can also be provided at the bottom of the side of the reactor body 1, through which the solution after adsorption treatment can be discharged from the reactor body 1.
[0035] The feed inlet 11 can be located at the top or upper part of the reactor body 1. The reactor body 1 is used to hold the heavy residual liquid to be treated that is fed in through the feed inlet 11. The heavy residual liquid comes into contact with the adsorbent material in the reactor body 1 through stirring, and the heavy residual liquid is purified and treated by the adsorbent material.
[0036] like Figure 2 As shown, the reactor body 1 is barrel-shaped, for example, it can be a cylindrical structure. Of course, it is understood that the reactor body 1 can also be other shapes; this is only used as an example and does not constitute a limitation on the scope of protection of the claims.
[0037] The stirring device 2 has a power unit and a stirring unit. The power unit can be a motor 21, and the stirring unit can be a stirring paddle 22. The motor 21 can drive the stirring paddle 22 to rotate, thereby stirring the heavy residual liquid inside the reactor body 1. The stirring paddle can have one or more blades. For example, the stirring paddle 22 can extend from the top of the reactor body 1 to the lower part of the reactor body 1 to stir the heavy residual liquid inside the reactor body 1, while the motor 21 is located outside the reactor body 1.
[0038] The impurity removal container 3 is disposed inside the reactor body 1, extending from the upper part to the lower part of the reactor body 1. The impurity removal container 3 is filled with adsorbent material. Here, the upper and lower parts of the reactor body 1 can be defined with reference to the centerline along the height direction of the reactor body 1; the portion above the centerline is the upper part, and the portion below the centerline is the lower part. To maximize the contact between the heavy residual liquid in the reactor body 1 and the adsorbent material in the impurity removal container 3, thereby improving the adsorption effect, the top of the impurity removal container 3 can extend to the top of the reactor body 1, and the bottom of the impurity removal container 3 can extend to the bottom of the reactor body 1. The bottom of the impurity removal container 3 is closer to the agitator 22 in the height direction of the reactor body 1 than its top.
[0039] The impurity removal container 3 is provided with mesh openings 31 to allow the heavy residual liquid to come into contact with the adsorbent material inside the container 3, thereby enabling the adsorbent material to remove impurities and purify the heavy residual liquid. For example, the impurity removal container 3 can be made of a mesh plate with mesh openings 31, and the entire impurity removal container 3 can be made of a mesh plate with mesh openings 31. Alternatively, the top and bottom of the impurity removal container can be sealed with a plate without mesh openings 31.
[0040] The pore size of mesh 31 is smaller than the outer diameter of the adsorbent material to prevent molecular activated carbon from being left in the reaction vessel after being broken by impact, which would have an adverse effect on the quality of the filtered residual liquid.
[0041] Compared to the lower part of the impurity removal container 3, the upper part of the impurity removal container 3 extends more towards the inner side of the reactor body 1, and the amount of adsorbent material filled in the impurity removal container 3 decreases from top to bottom.
[0042] The adsorbent material can be molecular activated carbon, which is uniformly filled inside the impurity removal container 3. Since the upper part of the impurity removal container 3 is larger than the lower part, the amount of adsorbent material filled inside the impurity removal container 3 decreases from top to bottom.
[0043] The portion of the impurity removal container 3 closest to the stirring paddle (the lower part of the impurity removal container 3) allows for more uniform contact between the heavy residual liquid and the adsorbent material within the container 3 due to thorough stirring. This results in better treatment of this portion of the heavy residual liquid by the adsorbent material. To improve the treatment effect on the heavy residual liquid in the upper part of the reactor body 1, which is farther from the stirring paddle, the upper part of the impurity removal container 3 is designed to be larger, and it extends further inwards towards the reactor body 1. This allows for a larger contact area between the impurity removal container 3 and the heavy residual liquid in the upper part of the reactor body 1, thereby improving the treatment effect on this portion of the heavy residual liquid. This, in turn, achieves a uniform treatment effect on the heavy residual liquid within the reactor body 1 as a whole.
[0044] The impurity removal container 3 in this embodiment is connected to the top and bottom of the reactor, and has a relatively long length, which increases the contact area between the heavy residual liquid and the adsorbent material, effectively increasing the adsorption capacity of the adsorbent material for impurities in the heavy residual liquid. The impurity removal container 3 is wider at the top and narrower at the bottom to solve the problem that the adsorbent material's adsorption effect on the upper heavy residual liquid is poor due to the strong fluid flow near the bottom of the reactor and the weak fluid flow at the top. It makes reasonable use of the internal structural space of the reactor and effectively improves the adsorption capacity of the adsorbent material for the entire heavy residual liquid in the reactor.
[0045] In some embodiments, the apparatus may include a plurality of the impurity removal containers 3, which are disposed on the inner wall of the reactor body 1. The impurity removal containers 3 may be fixed to the inner wall of the reactor body 1 by means of welding or other methods.
[0046] Multiple impurity removal containers 3 can be uniformly arranged in a ring around the inner wall of the reactor body 1. For example, the reactor body 1 is a barrel with a circular cross-section. Around the axis of the reactor body 1, multiple impurity removal containers 3 can be evenly arranged on the inner wall of the reactor body 1 to achieve uniform treatment of heavy residual liquid inside the reactor body 1.
[0047] In some embodiments, the device further includes a lower support 4, one end of which is fixed to the inner wall of the reactor body 1, and the other end of which extends toward the inner side of the reactor body 1. The bottom of the impurity removal container 3 is fixed to the lower support 4.
[0048] For example, the lower support base 4 can be a support rod or a support plate. One end of the support rod or support plate can be welded or fixed to the inner wall of the reactor body 1 by bolts. The other end of the support rod or support plate can extend a certain distance towards the center of the reactor body 1, just enough to stably support the impurity removal container 3. The impurity removal container 3 can be fixed to the lower support base 4 by bolts or other fixing methods to prevent the impurity removal container 3 from shaking inside the reactor body 1 with the stirred heavy residual liquid, ensuring that the impurity removal container 3 can be stably set inside the reactor body 1.
[0049] The device may also include an upper support 5, which is located above the lower support 4.
[0050] One end of the upper support 5 is fixed to the inner wall of the reactor body 1, and the other end of the lower support 4 extends into the inner side of the reactor body 1. The top of the impurity removal container 3 is fixed to the upper support 5.
[0051] The upper support 5 can be set in a similar manner to the lower support 4, so that the upper support 5 and the lower support 4 can provide more stable support for the impurity removal container 3, ensuring that the impurity removal container 3 does not shake with the heavy residual liquid in the reactor.
[0052] In some embodiments, the impurity removal container 3 can be a columnar body, such as a cylinder. The side of the columnar body close to the inner wall of the reactor body 1 can be attached to the inner wall of the reactor body 1, and the side of the columnar body facing the center of the reactor body 1 is inclined from top to bottom towards the inner wall of the reactor body 1, so that the impurity removal container 3 can form a structure with a larger top and a smaller bottom.
[0053] Of course, it is understood that the impurity removal container 3 may also take other forms of columnar shape; this is merely an example and does not constitute a limitation on the scope of protection of the claims.
[0054] A certain gap can also be formed between the impurity removal container 3 and the inner wall of the reactor body 1, so that the outer periphery of the impurity removal container 3 can contact the heavy residual liquid as much as possible, thereby increasing the contact area between the two and improving the treatment effect of the impurity removal container 3 on the heavy residual liquid.
[0055] It should be noted that the reactor body 1 and all structural components within the reactor body 1 are made of materials that do not chemically react with the heavy residual liquid, thus avoiding any impact on the caprolactam solution after impurity removal and purification.
[0056] Based on the same inventive concept, embodiments of this application also provide a system for removing impurities and purifying caprolactam heavy residue, including the apparatus described in any of the above embodiments.
[0057] This system can be used in conjunction with other structural components in the process of removing impurities and purifying caprolactam heavy residue, such as containers for holding caprolactam heavy residue and containers for receiving the treated solution discharged from the outlet 12 of the reactor body 1.
[0058] The foregoing has described in detail several embodiments of this application, but this application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of this application, and all such variations and modifications should fall within the scope of protection claimed in this application.
Claims
1. An apparatus for removing impurities and purifying caprolactam heavy residue, characterized in that, include: The reactor body has a feed inlet, which is used to hold the heavy residual liquid to be treated that is fed in through the feed inlet; A stirring device, wherein the stirring part is located in the lower part of the reactor body, is used to stir the heavy residual liquid in the reactor body; A purification container is disposed within the reactor body, extending from the upper part to the lower part of the reactor body. The purification container is filled with adsorbent material and has mesh openings to allow the heavy residual liquid to contact the adsorbent material within the purification container. The adsorbent material can remove impurities and purify the heavy residual liquid. The upper part of the purification container extends inward towards the reactor body, and the amount of adsorbent material filled in the purification container decreases from top to bottom.
2. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 1, characterized in that, The device includes a plurality of the impurity removal containers, which are disposed on the inner wall of the reactor body.
3. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 2, characterized in that, The reactor body is a cylindrical barrel with a circular cross-section, and a plurality of the impurity removal containers are uniformly arranged in a ring around the axis of the reactor body along the inner wall of the reactor body.
4. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 3, characterized in that, The device also includes a lower support base, one end of which is fixed to the inner wall of the reactor body, and the other end of which extends into the inner side of the reactor body. The bottom of the impurity removal container is fixed to the lower support base.
5. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 4, characterized in that, The device further includes an upper support base, which is located above the lower support base; One end of the upper support is fixed to the inner wall of the reactor body, and the other end of the lower support extends into the inner side of the reactor body. The top of the impurity removal container is fixed to the upper support.
6. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 3, characterized in that, The impurity removal container is a columnar body. The side of the columnar body close to the inner wall of the reactor body is attached to the inner wall of the reactor body, and the side of the columnar body close to the center of the reactor body is inclined from top to bottom towards the inner wall of the reactor body.
7. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 1, characterized in that, The adsorbent material is molecular activated carbon, which is uniformly filled in the impurity removal container.
8. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 1, characterized in that, The pore size of the mesh is smaller than the outer diameter of the adsorbent material.
9. The apparatus for removing impurities and purifying caprolactam residual liquid according to claim 1, characterized in that, The bottom side of the reactor body is also provided with a discharge port, through which the solution after adsorption treatment is discharged from the reactor body.
10. A system for removing impurities and purifying caprolactam residue, characterized in that, Includes the apparatus as described in any one of claims 1 to 9.