Butyl acrylate unit catalyst recycling and discharging mechanism

Abstract

The utility model relates to the technical field of catalyst recycling and discharging, and discloses a butyl acrylate unit catalyst recycling and discharging mechanism which comprises a first hollow block and a support, the side wall of the support is arranged on the side wall of the first hollow block, a connecting assembly is arranged on the side wall of the first hollow block, and a hollow column is fixedly connected to the top of the support. A feeding plate is fixedly connected to the top of the hollow column, a driving assembly is arranged on the side wall of the hollow column, a second hollow block is fixedly connected to the top of the first hollow block, and a supporting assembly is arranged on the side wall of the second hollow block; the supporting assembly comprises an inclined supporting plate. According to the utility model, the hydraulic cylinder drives the rotating plate to rotate, the second connecting block provides support for the rotating plate, and the rotating plate drives the fixed plate and the sealing disc to rotate to block one end of the hollow column, so that the problems that the synthetic reaction rate of butyl acrylate is reduced and the product purity is insufficient due to insufficient dosage of a catalyst are solved; and the stability of the catalyst recycling and discharging mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the field of catalyst recovery and emission technology, and in particular to a butyl acrylate unit catalyst recovery and emission mechanism. Background Technology

[0002] Butyl acrylate, as an important chemical monomer, is widely used in adhesives, coatings, and fiber modification. In its production process, the catalyst is a core element for achieving efficient synthesis. However, the recovery and quantitative discharge of the catalyst after the reaction directly affects the reaction efficiency and product quality. In the industrial synthesis of butyl acrylate, the precise addition of the catalyst directly impacts reaction efficiency and product quality. As a core auxiliary agent in the synthesis reaction, the amount of catalyst added needs to be dynamically adjusted according to the reaction conditions to ensure the efficient esterification reaction of acrylic acid and butanol.

[0003] Existing butyl acrylate catalyst recovery and discharge devices mostly employ a gravity-fed structure combined with simple valve control, or use a screw conveyor with a fixed rotation speed and a manual shut-off valve to achieve material discharge. The technical principle of these devices is primarily based on mechanical conveying and manual adjustment: catalyst particles fall into the conveying pipe through the inlet, move towards the discharge end by the rotational thrust of the screw blades, and the discharge rate is controlled by the opening angle of a manual valve. While some devices incorporate motor-driven screws, they lack dynamic sealing and precise metering structures for the discharge process. Their metering control relies on fixed conveying times or manual experience, making it impossible to adjust the dosage in real time according to reaction requirements.

[0004] However, traditional screw conveyors in existing technologies are prone to localized blockages when conveying granular catalysts due to a lack of dynamic adjustment capabilities caused by material accumulation or differences in flowability. Blockages not only interrupt continuous production but also lead to instability in the reaction system due to fluctuations in catalyst dosage, resulting in decreased monomer conversion and increased byproducts. Ultimately, this necessitates shutdown for cleaning and increases post-processing costs. Therefore, a butyl acrylate unit catalyst recovery and emission mechanism is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a butyl acrylate unit catalyst recovery and emission mechanism, which aims to improve the problem in the prior art that insufficient catalyst addition leads to a decrease in the butyl acrylate synthesis reaction rate, a decrease in monomer conversion rate, insufficient product purity, and the need for additional post-processing steps, thus increasing production costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A butyl acrylate unit catalyst recovery and emission mechanism includes a first hollow block and a support. The sidewall of the support is disposed on the sidewall of the first hollow block. A connecting component is disposed on the sidewall of the first hollow block. A hollow column is fixedly connected to the top of the support. A feed plate is fixedly connected to the top of the hollow column. A driving component is disposed on the sidewall of the hollow column. A second hollow block is fixedly connected to the top of the first hollow block. A support component is disposed on the sidewall of the second hollow block.

[0008] The support assembly includes a bracing plate, the side wall of which is fixedly connected to the side wall of a second hollow block. A first connecting block is fixedly connected to the top of the bracing plate. A hydraulic cylinder is rotatably connected to the inner wall of the first connecting block. A rotating plate is fixedly connected to the output end of the hydraulic cylinder. A second connecting block is fixedly connected to the side wall of the rotating plate. A support plate is rotatably connected to the side wall of the second connecting block. A fixing plate is fixedly connected inside the rotating plate. A sealing disc is fixedly connected to the side wall of the fixing plate.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a motor, the sidewall of which is fixedly connected to one end of a hollow column, and a screw rod is fixedly connected to the output end of the motor. The outer wall of the screw rod is rotatably connected to the inside of the hollow column.

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes a second connecting pipe and a first connecting pipe. One end of both the second connecting pipe and the first connecting pipe is fixedly connected to the side wall of the first hollow block. A rotating door is rotatably connected to the side wall of the first hollow block, and a fixed frame is fixedly connected inside the first hollow block.

[0013] As a further description of the above technical solution:

[0014] A support frame is provided at the top of the fixed frame, and a handle is fixedly connected to the top of the support frame.

[0015] As a further description of the above technical solution:

[0016] A hollow plate is fixedly connected to the bottom of the fixed frame, and a clamping plate is rotatably connected to the inner wall of the hollow plate.

[0017] As a further description of the above technical solution:

[0018] A connecting plate is fixedly connected to the outer wall of the clamping plate, and the side wall of the connecting plate is rotatably connected to the inner wall of the fixed frame.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the clamping plate is provided with a locking block, and the top of the locking block is fixedly connected to the bottom of the support frame.

[0021] As a further description of the above technical solution:

[0022] A spring is provided at the bottom of the connecting plate. One end of the spring is fixedly connected to the bottom of the connecting plate, and the other end of the spring is fixedly connected to the inner wall of the hollow plate.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, a hydraulic cylinder drives a rotating plate to rotate, and a second connecting block provides support for the rotating plate. After the rotating plate is subjected to force, it drives the fixed plate and sealing disc to rotate, and then one end of the hollow column is blocked, achieving the effect of quantitative catalyst addition. This solves the problem that insufficient catalyst addition leads to a decrease in the butyl acrylate synthesis reaction rate, a decrease in monomer conversion rate, and insufficient product purity, requiring additional post-processing steps and increasing production costs. It also improves the stability of the catalyst recovery and emission mechanism.

[0025] In this invention, pressing the handle moves the support frame, which in turn moves the bottom locking block, which then locks onto the inner wall of the clamping plate. This allows for quick disassembly of the support frame, solving the problem that filter plates are easily clogged by catalyst particles, polymer residues, or tar. If quick disassembly is not possible, a lot of time is required for manual cleaning or machine shutdown for maintenance, leading to production interruptions and reduced equipment utilization. This invention also improves the stability of the catalyst recovery and emission mechanism. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a butyl acrylate unit catalyst recovery and emission mechanism proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the first hollow block sidewall structure of a butyl acrylate unit catalyst recovery and emission mechanism proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the hollow column structure of a butyl acrylate unit catalyst recovery and emission mechanism proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the top structure of the first hollow block of a butyl acrylate unit catalyst recovery and emission mechanism proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of the first hollow block of the butyl acrylate unit catalyst recovery and emission mechanism proposed in this utility model;

[0031] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0032] Figure 7 for Figure 5 Enlarged view of point B in the middle.

[0033] Legend:

[0034] 1. Bracket; 2. Hollow column; 3. Feed plate; 4. First hollow block; 5. Second hollow block; 6. First connecting pipe; 7. Motor; 8. Second connecting pipe; 9. Screw rod; 10. Rotating door; 11. Handle; 12. Diagonal brace; 13. First connecting block; 14. Hydraulic cylinder; 15. Support plate; 16. Rotating plate; 17. Fixing plate; 18. Sealing disc; 19. Second connecting block; 20. Support frame; 21. Fixing frame; 22. Clamping block; 23. Hollow plate; 24. Clamping plate; 25. Connecting plate; 26. Spring. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0036] Reference Figures 1-4 and Figure 6 An embodiment of this utility model provides a butyl acrylate unit catalyst recovery and emission mechanism, including a first hollow block 4 and a support 1. The side wall of the support 1 is disposed on the side wall of the first hollow block 4. A connecting component is disposed on the side wall of the first hollow block 4. A hollow column 2 is fixedly connected to the top of the support 1. A feed plate 3 is fixedly connected to the top of the hollow column 2. A driving component is disposed on the side wall of the hollow column 2. A second hollow block 5 is fixedly connected to the top of the first hollow block 4. A support component is disposed on the side wall of the second hollow block 5.

[0037] The support assembly includes a diagonal brace 12, the side wall of which is fixedly connected to the side wall of the second hollow block 5. A first connecting block 13 is fixedly connected to the top of the diagonal brace 12. A hydraulic cylinder 14 is rotatably connected to the inner wall of the first connecting block 13. The hydraulic cylinder 14 drives a rotating plate 16 to adjust its angle, thereby controlling the opening and closing of the outlet end of the hollow column 2 by the sealing disc 18. This achieves precise quantitative discharge of the catalyst, avoiding waste caused by excessive feeding. The output end of the hydraulic cylinder 14 is fixedly connected to the rotating plate 16. A second connecting block 19 is fixedly connected to the side wall of the rotating plate 16. A support plate 15 is rotatably connected to the side wall of the second connecting block 19. The rotating plate 16 is internally fixed... A fixed plate 17 is fixedly connected to the hollow column 2, and a sealing disc 18 is fixedly connected to the side wall of the fixed plate 17. The driving component includes a motor 7, which is fixedly connected to one end of the hollow column 2. A screw rod 9 is fixedly connected to the output end of the motor 7. The screw rod 9 rotates in conjunction with the motor 7, thereby conveying the granular catalyst poured in by the feed plate 3 into the interior of the second hollow block 5, achieving the effect of continuous and uniform catalyst propulsion and avoiding material accumulation and blockage. The outer wall of the screw rod 9 is rotatably connected to the interior of the hollow column 2. The connecting component includes a second connecting pipe 8 and a first connecting pipe 6, one end of which is fixedly connected to the side wall of the first hollow block 4.

[0038] Reference Figure 1 , Figure 5 and Figure 7 A rotating door 10 is rotatably connected to the side wall of the first hollow block 4. A fixed frame 21 is fixedly connected inside the first hollow block 4. A support frame 20 is provided on the top of the fixed frame 21. A handle 11 is fixedly connected to the top of the support frame 20. A hollow plate 23 is fixedly connected to the bottom of the fixed frame 21. A clamping plate 24 is rotatably connected to the inner wall of the hollow plate 23. The clamping plate 24 is elastically clamped with a spring 26. It is fixed by a locking block 22 to the support frame 20, forming a locking structure that can be quickly disassembled and assembled. This facilitates the quick removal of the support frame 20 to clean residual catalyst during maintenance. A connecting plate 25 is fixedly connected to the outer wall of the clamping plate 24. The side wall of the connecting plate 25 is rotatably connected to the inner wall of the fixed frame 21. A locking block 22 is provided on the inner wall of the clamping plate 24. The top of the locking block 22 is fixedly connected to the bottom of the support frame 20. A spring 26 is provided at the bottom of the connecting plate 25. One end of the spring 26 is fixedly connected to the bottom of the connecting plate 25, and the other end of the spring 26 is fixedly connected to the inner wall of the hollow plate 23.

[0039] Working principle: When using the butyl acrylate unit catalyst recovery and discharge mechanism, first connect the second connecting pipe 8 to the discharge port, then pour the granular catalyst into the inside of the material plate 3, and then drive the screw rod 9 to rotate on the inner wall of the hollow column 2 through the output end of the motor 7. Then, the granular catalyst is pushed by the screw rod 9 and moved into the inside of the second hollow block 5.

[0040] Then, when discharging the catalyst in a quantitative manner, the output end of the hydraulic cylinder 14 drives the rotating plate 16 to rotate. Then, the rotating plate 16 is connected to one side by the second connecting block 19, and the second connecting block 19 is connected by the support plate 15. Then, during the rotation of the rotating plate 16, the internal fixing plate 17 is driven to rotate. Then, during the rotation of the fixing plate 17, the sealing disc 18 on the side wall is driven to rotate at one end of the hollow column 2, thus achieving the effect of quantitatively discharging the catalyst.

[0041] Then, when quickly disassembling the support frame 20, first pull the handle 11. The handle 11 moves the support frame 20 at the bottom. During the movement of the support frame 20, the bottom locking block 22 will disengage from the inner wall of the clamping plate 24. Then the clamping plate 24 will rotate on the inner wall of the hollow plate 23. During the rotation of the clamping plate 24, the bottom spring 26 will retract. Then, the retraction of the spring 26 will reset the position of the clamping plate 24, thus achieving the effect of quickly disassembling the support frame 20.

[0042] 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 butyl acrylate unit catalyst recovery discharge mechanism comprising a first hollow block (4) and a bracket (1), characterized in that: The side wall of the bracket (1) is provided on the side wall of the first hollow block (4), the side wall of the first hollow block (4) is provided with a connecting component, the top of the bracket (1) is fixedly connected to a hollow column (2), the top of the hollow column (2) is fixedly connected to a feed plate (3), the side wall of the hollow column (2) is provided with a driving component, the top of the first hollow block (4) is fixedly connected to a second hollow block (5), the side wall of the second hollow block (5) is provided with a support component; The support assembly includes a bracing plate (12), the side wall of which is fixedly connected to the side wall of the second hollow block (5), the top of which is fixedly connected to a first connecting block (13), the inner wall of which is rotatably connected to a hydraulic cylinder (14), the output end of which is fixedly connected to a rotating plate (16), the side wall of which is fixedly connected to a second connecting block (19), the side wall of which is rotatably connected to a support plate (15), the inside of which is fixedly connected to a fixing plate (17), and the side wall of which is fixedly connected to a sealing disc (18).

2. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 1, characterized in that: The drive assembly includes a motor (7), the side wall of which is fixedly connected to one end of the hollow column (2), and the output end of the motor (7) is fixedly connected to a screw rod (9), the outer wall of which is rotatably connected to the inside of the hollow column (2).

3. The butyl acrylate unit catalyst recovery and venting mechanism of claim 1, wherein: The connecting assembly includes a second connecting pipe (8) and a first connecting pipe (6), one end of which is fixedly connected to the side wall of the first hollow block (4).

4. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 3, characterized in that: The first hollow block (4) has a rotating door (10) rotatably connected to its side wall. A fixed frame (21) is fixedly connected inside the first hollow block (4). A support frame (20) is provided on the top of the fixed frame (21). A handle (11) is fixedly connected to the top of the support frame (20).

5. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 4, characterized in that: The bottom of the fixed frame (21) is fixedly connected to a hollow plate (23), and the inner wall of the hollow plate (23) is rotatably connected to a clamping plate (24).

6. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 5, characterized in that: The clamping plate (24) is fixedly connected to the outer wall of the connecting plate (25), and the side wall of the connecting plate (25) is rotatably connected to the inner wall of the fixed frame (21).

7. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 6, characterized in that: The inner wall of the clamping plate (24) is provided with a locking block (22), and the top of the locking block (22) is fixedly connected to the bottom of the support frame (20).

8. A butyl acrylate unit catalyst recovery and discharge mechanism according to claim 7, characterized in that: A spring (26) is provided at the bottom of the connecting plate (25). One end of the spring (26) is fixedly connected to the bottom of the connecting plate (25), and the other end of the spring (26) is fixedly connected to the inner wall of the hollow plate (23).

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