A solvent recovery apparatus for 4-vinylbenzoic acid

Abstract

This utility model relates to the field of solvent recovery technology, specifically a solvent recovery device for 4-vinylbenzoic acid. It includes a placement cylinder, with a filter disc slidably connected inside. A clamping plate is fixedly connected to the top of the filter disc, and a filter cylinder is mounted on top of the filter disc. A connecting assembly is used to connect the filter cylinder and filter disc for easy use and recovery. The filter cylinder and filter disc can be disassembled for separate cleaning. The connection is achieved through the coordinated arrangement of a first spring, a linkage block, a linkage plate, a push rod, a clamping block, and a rotating shaft. This ensures a tight fit between the two components, resulting in more thorough filtration of solvent impurities. The separate design allows for selection of the optimal cleaning solution based on the contamination characteristics of different filtration mechanisms, avoiding inefficiencies caused by cleaning. For example, the filter cylinder, which intercepts large particles, is suitable for high-pressure rinsing, while the filter disc, which traps fine particles, is cleaned through ultrasonic vibration and chemical reagent dissolution.

Description

Technical Field

[0001] This utility model relates to the field of solvent recovery technology, and in particular to a solvent recovery device for 4-vinylbenzoic acid. Background Technology

[0002] A solvent is a compound that can dissolve other substances, often used to dissolve solid, liquid, or gaseous substances into a liquid form. A solvent recovery unit is a device used to recover and reuse used solvents. In industrial production and laboratory operations, solvents are commonly used to dissolve or process substances, but used solvents may contain impurities or other contaminants. To improve resource utilization efficiency, reduce costs, and minimize environmental pollution, solvent recovery units are designed to clean and regenerate used solvents, bringing them back to the standard for reuse.

[0003] An existing solvent recovery device, authorized under publication number CN222239181U, includes a base plate. A heating assembly and multiple support rods are fixedly connected to the top surface of the base plate. The interior of the cylinder is hollowed out, and a threaded post is threadedly connected to the center of the top. A filter cylinder is fixedly connected to the bottom surface of the threaded post. A discharge device is fixedly connected to the bottom surface of the cylinder. A distillation assembly is fixedly connected to the bottom surface of the discharge device. A condenser is fixedly connected to the outside of the output pipe, and a collection bottle is fixedly connected to one end of the output pipe. In this invention, a solvent mixture is injected through a through-hole in a disc, flowing into the interior of the filter cylinder. After filtration, it flows from the inside of the filter cylinder back into the interior of the cylinder, and then through the porous base plate and discharge device into the distillation tube and distillation flask. Distillation is performed by water bath heating, thus completing the solvent recovery. This process achieves pretreatment of the solvent mixture, making it difficult for the device to become clogged and improving solvent recovery efficiency.

[0004] Regarding the aforementioned technologies, existing solvent recovery devices have the following drawbacks: a single filtration method is insufficient to meet the requirements of high-precision filtration; fine impurities can easily enter the distillation process, affecting distillation efficiency and even clogging the pipes and valves of the distillation equipment, thus reducing the equipment's service life; on the other hand, the filter components have a fixed structure, making cleaning and maintenance inconvenient. Therefore, this invention provides a solvent recovery device for 4-vinylbenzoic acid. Utility Model Content

[0005] The purpose of this application is to provide a solvent recovery device for 4-vinylbenzoic acid to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A solvent recovery device for 4-vinylbenzoic acid includes a placement cylinder, a filter disc slidably connected inside the placement cylinder, a clamping plate fixedly connected to the top of the filter disc, a filter cylinder disposed on the top of the filter disc, a connecting assembly disposed inside the filter cylinder, the connecting assembly including a rotating shaft rotatably connected to the inside of the filter cylinder, a linkage block fixedly connected to the side wall of the rotating shaft, a first spring fixedly connected to the top of the linkage block, the other end of the first spring fixedly connected to the inner top wall of the filter cylinder, a clamping block adapted to the clamping plate fixedly connected to the bottom of the linkage block, a linkage plate fixedly connected to the bottom of the linkage block, and a push rod fixedly connected to the side wall of the linkage plate, the push rod sliding on the side wall of the filter cylinder.

[0008] Preferably, a movable block is slidably connected inside the filter cylinder, and a second spring is fixedly connected to the top of the movable block. The other end of the second spring is fixedly connected to the inner top wall of the filter cylinder.

[0009] Preferably, the side wall of the placement cylinder is fixedly connected to a housing, and a movable rod is slidably connected inside the housing, the movable rod passing through the housing and the placement cylinder.

[0010] Preferably, a movable plate is fixedly connected to the side wall of the movable rod, the movable plate slides inside the outer shell, and a fixing clamp adapted to the filter cartridge is fixedly connected to one end of the movable rod.

[0011] Preferably, a third spring is sleeved on the outer side of the moving rod, one end of the third spring is fixedly connected to the side wall of the moving plate, and the other end of the third spring is fixedly connected to the inner side wall of the outer casing.

[0012] Preferably, a connecting seat is fixedly connected to the outer side of the placement cylinder, a support column is fixedly connected to the bottom of the connecting seat, a base is fixedly connected to the bottom of the support column, a distillation box is fixedly connected to the top of the base, a reflux box is fixedly connected to the top of the base, and a discharge pipe is fixedly connected to the bottom of the placement cylinder.

[0013] Preferably, one end of the discharge pipe is fixedly connected to a distillation flask, which is disposed inside the distillation box. A reflux pipe is fixedly connected to the side wall of the discharge pipe. One end of the reflux pipe is fixedly connected to the top of the reflux box, and a condenser is provided on the side wall of the reflux pipe.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] The filter cartridge and filter disc are joined together using connecting components, facilitating their combined use and recycling. They can also be disassembled for separate cleaning. The combination of a first spring, linkage block, linkage plate, push rod, locking block, and rotating shaft enables the filter cartridge and filter disc to be joined together, achieving a tight fit for more thorough filtration of solvent impurities. At the same time, the split design allows for the selection of the optimal cleaning solution based on the contamination characteristics of different filtration mechanisms, avoiding inefficiencies caused by cleaning. For example, the filter cartridge, which intercepts large particles, is suitable for high-pressure rinsing, while the filter disc, which traps fine particles, is cleaned by ultrasonic vibration and chemical reagent dissolution. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view axial side view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the outer shell of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the filter cartridge of this utility model;

[0020] Figure 4 This is a schematic diagram of the linkage block of this utility model.

[0021] In the diagram: 1. Base; 2. Reflux box; 3. Reflux pipe; 4. Condenser; 5. Placement cylinder; 6. Outer shell; 7. Discharge pipe; 8. Distillation flask; 9. Support column; 10. Distillation box; 11. Moving plate; 12. Third spring; 13. Moving rod; 14. Fixing clamp; 15. Filter cylinder; 16. Filter plate; 17. Push rod; 18. Clamping plate; 19. Moving block; 20. Second spring; 21. First spring; 22. Linkage block; 23. Rotating shaft; 24. Linkage plate; 25. Clamping block; 26. Connecting seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1: Reference Figure 1-4The solvent recovery device for 4-vinylbenzoic acid shown includes a placement cylinder 5, which provides space for and supports a filter disc 16, ensuring its stability within the device. The filter disc 16, slidably connected internally, performs secondary filtration on the solvent after the initial filtration. By setting a fine filtration structure, it traps smaller particles of impurities, improving solvent purity and providing better raw materials for subsequent distillation steps. A retaining plate 18 is fixedly connected to the top of the filter disc 16. The retaining plate 18 cooperates with a retaining block 25 to lock the filter disc 16 and the filter cylinder 15 together, ensuring a tight connection during filtration and preventing solvent leakage or unfiltered liquid overflow. The filter cylinder 15 is located on the top of the filter disc 16. The filter cartridge 15 performs initial filtration of the poured solvent. Through its larger pore size, it intercepts larger particles of impurities in the solvent, such as crystalline particles of 4-vinylbenzoic acid and mechanical debris, reducing the filtration burden on the filter disc 16. An internal connecting assembly is provided within the filter cartridge 15, including a rotating shaft 23 rotatably connected to the interior of the filter cartridge 15. The rotating shaft 23 serves as the central axis for the rotation of the linkage block 22, providing support and a foundation for its rotation, ensuring the stability of the linkage block 22 during rotation. The linkage block 22 is fixedly connected to the side wall of the rotating shaft 23. The linkage block 22 rotates to engage and disengage the locking block 25 and the locking plate 18, thereby controlling the connection and disassembly of the filter cartridge 15 and the filter disc 16. The top of the linkage block 22... A first spring 21 is fixedly connected to the filter cylinder 15. The other end of the first spring 21 is fixedly connected to the inner top wall of the filter cylinder 15. The first spring 21 provides a reset force after the linkage block 22 rotates, so that the locking block 25 can automatically reset and lock onto the locking plate 18 when no external force is applied, ensuring the stability of the connection between the filter cylinder 15 and the filter disc 16. A locking block 25 that matches the locking plate 18 is fixedly connected to the bottom of the linkage block 22. When the locking block 25 and the locking plate 18 are engaged, the filter cylinder 15 and the filter disc 16 are tightly spliced ​​together, ensuring that there will be no loosening or misalignment when the two are used together, thus ensuring the filtration effect. A linkage plate 24 is fixedly connected to the bottom of the linkage block 22. The linkage plate 24 is used to transmit the pushing force of the push rod 17. When the push rod 17 is pushed by force, the linkage plate 24... The linkage block 22 rotates, separating the locking block 25 from the locking plate 18. A push rod 17 is fixedly connected to the side wall of the linkage plate 24, sliding on the side wall of the filter cylinder 15. By pushing the push rod 17, the operator can easily and quickly control the engagement and disengagement of the locking block 25 and the locking plate 18, enabling the rapid separation of the filter cylinder 15 and the filter disc 16 for easy cleaning. A moving block 19 is slidably connected inside the filter cylinder 15, providing guidance and support for the up-and-down movement of the filter cylinder 15 within the placement cylinder 5, ensuring the stability of the filter cylinder 15 during movement. A second spring 20 is fixedly connected to the top of the moving block 19, with the other end of the second spring 20 fixedly connected to the inner top wall of the filter cylinder 15.The second spring 20 provides a restoring force after the filter cylinder 15 is pressed down or lifted by an external force, allowing the filter cylinder 15 to automatically return to its initial position, maintaining the stability of the device structure and the continuity of operation.

[0025] Example 2: Reference Figure 1-4Based on the same concept as in Embodiment 1 above, this embodiment further proposes that a housing 6 is fixedly connected to the side wall of the placement cylinder 5. The housing 6 provides protection for components such as the moving rod 13, preventing them from being impacted by external collisions or dust, ensuring the normal operation of the internal structure, and providing a stable track and support surface for the sliding of the moving rod 13 and the moving plate 11. The moving rod 13 is slidably connected inside the housing 6, passing through the housing 6 and the placement cylinder 5. It can slide up and down along the inside of the housing 6 to adjust and operate the position of the filter cylinder 15, making it easy to remove or put the filter cylinder 15 into the placement cylinder 5. The moving plate 11 is fixedly connected to the side wall of the moving rod 13. The moving plate 11 increases the contact area between the moving rod 13 and the housing 6, making the sliding process of the moving rod 13 smoother. The system is designed to be stable, preventing wobbling and deviation, and can cooperate with the third spring 12 to achieve the reset of the moving rod 13 after movement. One end of the moving rod 13 is fixedly connected to a fixing clip 14 that matches the filter cylinder 15. The fixing clip 14 can firmly clamp the filter cylinder 15, making the filter cylinder 15 tightly connected to the moving rod 13, ensuring that it will not fall off when the moving rod 13 moves the filter cylinder 15, facilitating the overall removal of the filter cylinder 15 and filter disc 16 for cleaning. The third spring 12 is sleeved on the outside of the moving rod 13. One end of the third spring 12 is fixedly connected to the side wall of the moving plate 11, and the other end of the third spring 12 is fixedly connected to the inner side wall of the outer shell 6. The third spring 12 generates a reset elastic force after the moving rod 13 is moved under force. When the fixing clip 14 releases the filter cylinder 15, the third spring 12... Spring 12 pushes the moving rod 13 and the moving plate 11 back to their initial positions, preparing for the next operation. A connecting seat 26 is fixedly connected to the outer side of the placement cylinder 5. The connecting seat 26 connects to the support column 9, securely mounting the placement cylinder 5 onto the base 1, ensuring the stability of the placement cylinder 5 during device operation and preventing shaking or tipping. The support column 9 is fixedly connected to the bottom of the connecting seat 26, supporting the placement cylinder 5 at a certain height, maintaining a reasonable spatial arrangement between the placement cylinder 5 and other components on the base 1, while enhancing the structural strength and stability of the entire device. The base 1 is fixedly connected to the bottom of the support column 9, serving as the basic support component of the device, providing an installation base for other components such as the distillation box 10 and the reflux box 2, and expanding the device's position relative to the placement plate. The increased contact area of ​​the surface makes the device more stable. A distillation box 10 is fixedly connected to the top of the base 1. The distillation box 10 is equipped with a heating element to heat the distillation flask 8, so that the solvent in the distillation flask 8 reaches its boiling point and vaporizes, providing the necessary heat for solvent distillation and separation. A reflux box 2 is fixedly connected to the top of the base 1. The reflux box 2 is used to collect the liquid cooled by the condenser 4. Whether it is the recovered pure solvent or the condensate of impurities, it is temporarily stored here for subsequent centralized processing. A discharge pipe 7 is fixedly connected to the bottom of the placement cylinder 5. The discharge pipe 7 transports the solvent filtered by the filter plate 16 to the distillation flask 8, ensuring that the filtered solvent smoothly enters the distillation stage and realizing the continuity of the solvent recovery process. One end of the discharge pipe 7 is fixedly connected to the distillation flask 8.The distillation flask 8 is located inside the distillation box 10, serving as the core container for solvent distillation. It holds the filtered solvent, which vaporizes and separates from impurities under the heating action of the distillation box 10. A reflux pipe 3 is fixedly connected to the side wall of the discharge pipe 7. The reflux pipe 3 transports the vaporized solvent vapor from the distillation flask 8 to the condenser 4, while simultaneously returning the cooled liquid from the condenser 4 to the reflux box 2, completing vapor transfer and condensate recovery. One end of the reflux pipe 3 is fixedly connected to the top of the reflux box 2, ensuring that the cooled liquid from the condenser 4 flows smoothly into the reflux box 2 for storage. The condenser 4 is located on the side wall of the reflux pipe 3. The condenser 4 exchanges heat with the solvent vapor through a cooling medium, rapidly cooling and liquefying the solvent vapor in the reflux pipe 3 for subsequent collection and recycling.

[0026] The working principle of this device is as follows: When using this device, the solvent is first poured into the filter cylinder 15. After the initial filtration by the filter cylinder 15, it flows out to the filter plate 16. The filter plate 16 performs a secondary filtration on the solvent. The filtered solvent flows into the distillation flask 8 through the discharge pipe 7. The solvent in the distillation flask 8 is heated by the distillation box 10. Utilizing the difference in boiling points, the impurities in the solvent turn into gas and are cooled into liquid by the condenser 4 through the reflux pipe 3 and collected in the reflux box 2. The recovered solvent will remain in the distillation flask 8. After the recovery is completed, the operator can pull the moving rod 13 to remove the filter cylinder 15 and the filter plate 16 together, and push the push rod 17 to release the locking block 25 from the locking plate 18, so that the filter cylinder 15 and the filter plate 16 can be cleaned separately.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A solvent recovery device for 4-vinylbenzoic acid, comprising a placement cylinder (5), characterized in that: The placement cylinder (5) is slidably connected to a filter plate (16), and a card plate (18) is fixedly connected to the top of the filter plate (16). A filter cylinder (15) is provided on the top of the filter plate (16), and a connecting component is provided inside the filter cylinder (15). The connecting assembly includes a rotating shaft (23) rotatably connected to the inside of the filter cylinder (15). A linkage block (22) is fixedly connected to the side wall of the rotating shaft (23). A first spring (21) is fixedly connected to the top of the linkage block (22). The other end of the first spring (21) is fixedly connected to the inner top wall of the filter cylinder (15). A locking block (25) adapted to the locking plate (18) is fixedly connected to the bottom of the linkage block (22). A linkage plate (24) is fixedly connected to the bottom of the linkage block (22). A push rod (17) is fixedly connected to the side wall of the linkage plate (24). The push rod (17) slides on the side wall of the filter cylinder (15).

2. The solvent recovery device for 4-vinylbenzoic acid according to claim 1, characterized in that: The filter cylinder (15) is slidably connected to a moving block (19), and a second spring (20) is fixedly connected to the top of the moving block (19). The other end of the second spring (20) is fixedly connected to the inner top wall of the filter cylinder (15).

3. The solvent recovery device for 4-vinylbenzoic acid according to claim 2, characterized in that: The side wall of the placement cylinder (5) is fixedly connected to the outer shell (6), and the inside of the outer shell (6) is slidably connected to the moving rod (13), which passes through the outer shell (6) and the placement cylinder (5).

4. The solvent recovery device for 4-vinylbenzoic acid according to claim 3, characterized in that: The moving rod (13) has a moving plate (11) fixedly connected to its side wall. The moving plate (11) slides inside the outer shell (6). One end of the moving rod (13) is fixedly connected to a fixing clamp (14) that is compatible with the filter cylinder (15).

5. The solvent recovery device for 4-vinylbenzoic acid according to claim 4, characterized in that: A third spring (12) is sleeved on the outside of the moving rod (13). One end of the third spring (12) is fixedly connected to the side wall of the moving plate (11), and the other end of the third spring (12) is fixedly connected to the inner side wall of the outer shell (6).

6. The solvent recovery device for 4-vinylbenzoic acid according to claim 5, characterized in that: A connecting seat (26) is fixedly connected to the outside of the placement cylinder (5). A support column (9) is fixedly connected to the bottom of the connecting seat (26). A base (1) is fixedly connected to the bottom of the support column (9). A distillation box (10) is fixedly connected to the top of the base (1). A reflux box (2) is fixedly connected to the top of the base (1). A discharge pipe (7) is fixedly connected to the bottom of the placement cylinder (5).

7. The solvent recovery device for 4-vinylbenzoic acid according to claim 6, characterized in that: One end of the discharge pipe (7) is fixedly connected to a distillation flask (8), which is located inside the distillation box (10). A reflux pipe (3) is fixedly connected to the side wall of the discharge pipe (7). One end of the reflux pipe (3) is fixedly connected to the top of the reflux box (2). A condenser (4) is provided on the side wall of the reflux pipe (3).

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