An apparatus for preparing cyclohexane dicarboxylic acid dioctyl ester
By introducing a rotating shaft and stirring blades into the mixing tank, and a rotating rod and filter screen in the separation box, the problems of uneven mixing and inconvenient filtration are solved, achieving efficient mixing and separation, improving product purity and safety, and meeting energy-saving and environmental protection requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YIXUN CHEMICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-14
AI Technical Summary
In the preparation of dioctyl cyclohexanedicarboxylate using existing reactors, uneven mixing leads to incomplete reaction, resulting in low product purity. Furthermore, the filtration equipment is costly and the filter cartridges are inconvenient to replace.
A device comprising a mixing tank, a separation chamber, and a vessel body was designed. The mixing tank is equipped with a rotating shaft and stirring blades, driven by a servo motor. The separation chamber is equipped with a rotating rod and a filter screen. The feed pipe is controlled by a solenoid valve. Combined with a heater and a steam pipe, the device achieves automated operation and efficient mixing and separation.
It improves mixing efficiency and separation effect, reduces operation difficulty, extends equipment life, enhances product purity and safety, and meets energy-saving and environmental protection requirements.
Smart Images

Figure CN224485993U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of preparation apparatus, specifically to an apparatus for preparing dioctyl cyclohexanedicarboxylate. Background Technology
[0002] Plasticizers are widely used polymer additives in industrial production. Any substance added to polymer materials that increases the plasticity of the polymer is called a plasticizer. The use of plasticizers can improve the performance of polymer materials, reduce production costs, and increase production efficiency. They are an important class of chemical product additives and are commonly used as additives in plastic products, concrete, mortar, cement, gypsum, cosmetics, and cleaning agents. Depending on the application of the plasticizer, different solutions are added during processing to create new raw materials.
[0003] A search revealed an environmentally friendly plasticizer preparation reactor with publication number CN202023225337.2. Specifically, the reactor includes a base, a support column fixedly connected to the upper surface of the base, a movable rod movably connected to one side of the support column, a reactor body fixedly connected to one end of the movable rod, and a conduit fixedly connected to the outer surface of the reactor body, with a water inlet fixedly connected to one end of the conduit. This environmentally friendly plasticizer preparation reactor, through the arrangement of the support column, movable rod, fixed column, and bolts, allows for easy cleaning after unloading. By rotating the bolts to separate them from the fixed column, and then rotating the reactor body, the movable rod rotates on the support column, tilting the reactor body and facilitating cleaning. This significantly improves cleaning and work efficiency. After cleaning, the reactor body can be rotated to a vertical position, and then the bolts and fixed column can be rotated to secure it for use.
[0004] However, the above-mentioned device still has certain defects. For example, when plasticizers are produced, multiple raw materials need to be mixed and reacted. However, the existing reaction vessel cannot mix the raw materials fully, resulting in incomplete reaction, low plasticizer purity, and affecting product quality. At the same time, after mixing, the mixture needs to be filtered for impurities. However, the traditional filtration device for the preparation of dioctyl ethanedicarboxylate is expensive and it is inconvenient to replace the internal filter element.
[0005] Therefore, it is necessary to invent an apparatus for preparing dioctyl cyclohexanedicarboxylate to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide an apparatus for preparing dioctyl cyclohexanedicarboxylate, which can effectively solve the above-mentioned technical problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an apparatus for preparing dioctyl cyclohexanedicarboxylate, comprising a mounting frame, an outer shell bolted to the inner side of the mounting frame, a mixing tank bolted to the inner side of the upper part of the inner cavity of the outer shell, a rotating shaft rotatably connected to the center of both sides of the inner cavity of the mixing tank via bearings, stirring blades arranged and bolted to the surface of the rotating shaft, a first servo motor bolted to the left side of the rotating shaft passing through the mixing tank and the outer shell, feed pipes connected to both sides of the top of the outer shell, and the bottom of the feed pipes connected to the top of the mixing tank, a first discharge pipe connected to the bottom of the mixing tank, the other end of the first discharge pipe connected to a separation box, a rotating rod rotatably connected to the center of the front of the inner cavity of the separation box via bearings, a connecting frame bolted to the surface of the rotating rod, a filter screen bolted to the inner side of the connecting frame, and a guide plate bolted to the right side of the lower part of the inner cavity of the separation box.
[0008] Preferably, a protective cover is bolted to the right side of the separation box, and a mounting groove is bolted to the bottom of the protective cover.
[0009] Preferably, a waste bin is slidably connected to the inner side of the mounting groove, and a second discharge pipe is connected to the bottom of the separation box.
[0010] Preferably, the bottom of the second feeding pipe is connected to the vessel body.
[0011] Preferably, a heater is bolted to the lower left side of the outer shell, and a heating tube is wound around the surface of the vessel body. One end of the heating tube is connected to the heater, so that the heater heats the heating tube. The heating tube transfers heat to the inside of the vessel body through the vessel body, heating the bioplasticizer inside the vessel body. The solution evaporates due to heat, is concentrated, and thus reduces the volume.
[0012] Preferably, a second servo motor is bolted to the center of the front of the outer casing, and the front of the rotating rod passes through the separation box and the outer casing and is bolted to the output end of the second servo motor, so that the rotating rod in the separation box is rotated by the second servo motor.
[0013] Preferably, a steam pipe is connected to the right side of the top of the vessel, and a third discharge pipe is connected to the bottom of the vessel. The other end of the third discharge pipe is connected to a storage tank, so that the steam pipe can discharge the steam in the vessel, or reduce the pressure in the vessel by discharging the steam, so that the vessel can transfer the bioplasticizer to the storage tank for sealing through the third discharge pipe.
[0014] Preferably, the middle sections of the first, second, and third feeding pipes are all connected to solenoid valves, so that the feeding pipes are all controlled by the solenoid valves, thereby controlling the feeding time of the feeding pipes.
[0015] This utility model relates to an apparatus for preparing dioctyl cyclohexanedicarboxylate, which has significant technical advantages and positive effects compared with the prior art, as detailed below:
[0016] 1. Improve mixing efficiency and uniformity:
[0017] This device ensures uniform mixing of materials within the mixing tank by incorporating a rotating shaft and stirring blades, driven by a first servo motor. This design effectively overcomes the problem of uneven mixing in traditional devices, significantly improving mixing efficiency and thus enhancing the quality and consistency of the final product.
[0018] 2. Optimize separation performance:
[0019] The separation chamber contains a rotating rod and a connecting frame, with a filter screen bolted to the inside of the connecting frame. A second servo motor drives the rotating rod, making the filtration process more efficient. This design not only improves separation efficiency but also reduces filter clogging, extending the equipment's lifespan.
[0020] 3. Automated control improves ease of operation:
[0021] The first, second, and third feeding pipes in the device are all connected to solenoid valves. By controlling the solenoid valves, the feeding time can be precisely adjusted, realizing automated operation, reducing manual intervention, and lowering the difficulty of operation and human error.
[0022] 4. High-efficiency heating and energy-saving and environmentally friendly:
[0023] A heater is located on the left side of the outer shell, and heating tubes are wound around the surface of the vessel. The heater heats the heating tubes, and the heat is transferred to the interior through the vessel, achieving efficient heating of the bio-plasticizer. This design not only improves heating efficiency but also reduces energy consumption, meeting the requirements of energy conservation and environmental protection.
[0024] 5. Safety and Waste Disposal:
[0025] The right side of the separation box is equipped with a protective cover and an installation slot. A waste bin is slidably connected inside the installation slot, which facilitates the collection and treatment of waste, avoids pollution of the environment and equipment by waste, and improves the safety and environmental protection of the device.
[0026] 6. Multifunctional integration and optimized space utilization:
[0027] This device integrates multiple functions such as mixing, separation, heating, and storage. It has a compact structure, high space utilization, and reduces the equipment footprint, making it suitable for efficient operation in limited spaces.
[0028] 7. Steam discharge and pressure control:
[0029] The top of the vessel is equipped with a steam pipe, and the bottom is connected to a third discharge pipe. The steam inside the vessel is discharged through the steam pipe, or the pressure inside the vessel is reduced by discharging the steam, which ensures the safety and stability of the operation process and avoids equipment damage or safety hazards caused by excessive pressure.
[0030] 8. Improve product purity and quality:
[0031] By optimizing the mixing, separation, and heating processes, this device can effectively improve the purity and quality of dioctyl cyclohexanedicarboxylate, meeting the demands of the high-end market and enhancing the product's market competitiveness.
[0032] In summary, this utility model device has significant advantages and positive effects compared with the prior art in terms of improving mixing and separation efficiency, realizing automated control, energy saving and environmental protection, safety protection, multi-functional integration, space utilization optimization, and improving product purity and quality. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0034] Figure 1 This is a front view of the overall structure of this utility model;
[0035] Figure 2 This is a front sectional view of the overall structure of this utility model;
[0036] Figure 3 This is a partial top view of the structure of this utility model;
[0037] Figure 4 This is a partial structural side view of the present invention;
[0038] Figure 5 This is a partial structural sectional view of the present invention.
[0039] Explanation of reference numerals in the attached figures:
[0040] 1. Mounting frame; 2. Outer shell; 3. Mixing tank; 4. Rotating shaft; 5. Stirring blade; 6. First servo motor; 7. Feed pipe; 8. First discharge pipe; 9. Separation box; 10. Rotating rod; 11. Connecting frame; 12. Filter screen; 13. Guide plate; 14. Protective cover; 15. Mounting groove; 16. Waste bin; 17. Second discharge pipe; 18. Kettle body; 19. Second servo motor; 20. Steam pipe; 21. Third discharge pipe; 22. Storage tank; 23. Solenoid valve; 24. Heater; 25. Heating tube. Detailed Implementation
[0041] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0042] This utility model provides, for example Figure 1-5 The apparatus shown is for preparing dioctyl cyclohexanedicarboxylate, including a mounting frame 1, an outer shell 2 bolted to the inner side of the mounting frame 1, a mixing tank 3 bolted to the inner side of the upper part of the inner cavity of the outer shell 2, a rotating shaft 4 rotatably connected to the center of both sides of the inner cavity of the mixing tank 3 via bearings, stirring blades 5 arranged and bolted to the surface of the rotating shaft 4, a first servo motor 6 bolted to the left side of the rotating shaft 4 through the mixing tank 3 and the outer shell 2, feed pipes 7 connected to both sides of the top of the outer shell 2, and the bottom of the feed pipes 7 connected to the top of the mixing tank 3, a first discharge pipe 8 connected to the bottom of the mixing tank 3, the other end of the first discharge pipe 8 connected to a separation box 9, a rotating rod 10 rotatably connected to the center of the front of the inner cavity of the separation box 9 via bearings, a connecting frame 11 bolted to the surface of the rotating rod 10, a filter screen 12 bolted to the inner side of the connecting frame 11, and a guide plate 13 bolted to the right side of the lower part of the inner cavity of the separation box 9.
[0043] A protective cover 14 is bolted to the right side of the separation box 9, and a mounting groove 15 is bolted to the bottom of the protective cover 14.
[0044] The inner side of the mounting groove 15 is slidably connected to a waste bin 16, and the bottom of the separation bin 9 is connected to a second discharge pipe 17.
[0045] The bottom of the second feed pipe 17 is connected to the vessel body 18.
[0046] A second servo motor 19 is bolted to the center of the front of the outer casing 2, and the front of the rotating rod 10 passes through the separation box 9 and the outer casing 2 and is bolted to the output end of the second servo motor 19. By setting the second servo motor 19, the second servo motor 19 can electrically rotate the rotating rod 10 in the separation box 9.
[0047] A steam pipe 20 is connected to the right side of the top of the vessel body 181, and a third discharge pipe 21 is connected to the bottom of the vessel body 181. The other end of the third discharge pipe 21 is connected to a storage tank 22. By setting up the steam pipe 20, the third discharge pipe 21 and the storage tank 22, the steam pipe 20 can discharge the steam in the vessel body, or reduce the pressure in the vessel body by discharging the steam, so that the vessel body 181 can transfer the liquid bioplasticizer to the storage tank for sealing through the third discharge pipe 21.
[0048] The middle sections of the first feeding pipe 8, the second feeding pipe 17, and the third feeding pipe 21 are all connected to a solenoid valve 23. By setting the solenoid valve 23, the feeding pipes can be controlled by the solenoid valve 23, thereby controlling the feeding time of the feeding pipes.
[0049] Refer to the instruction manual appendix Figure 1-5 Working principle: The bioplasticizer enters the separation box 9 through the first feed pipe 8, and then the mixed solution drips downwards. At this time, the second servo motor 19 is turned on, and the second servo motor 19 drives the rotating rod 10 to rotate. During the rotation of the rotating rod 10, the connecting frame 11 and the filter screen 12 will rotate continuously. During the fall, the solution will continuously pass through different filters 12. Finally, the liquid can pass through the filter screen 12 and be guided by the guide plate 13 to flow to the second feed pipe 17. However, the solid raw material waste cannot pass through the filter screen 12 and is blocked by the filter screen 12. As the filter screen 12 is driven by the rotating rod 10 to rotate clockwise, the solid raw material fragments will be thrown into the waste box 16 due to the high-speed rotation. When it is necessary to remove the solid raw material fragments, the waste box 16 can be slid out of the installation groove 15 through the handle on the front of the waste box 16, thereby performing solid-liquid separation of the bioplasticizer.
[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. An apparatus for preparing dioctyl cyclohexanedicarboxylate, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is bolted to the inner side of the outer shell (2). The inner side of the upper part of the inner cavity of the outer shell (2) is bolted to the mixing tank (3). The center of both sides of the inner cavity of the mixing tank (3) is rotatably connected to the rotating shaft (4) through the bearing. The surface of the rotating shaft (4) is bolted with stirring blades (5). The left side of the rotating shaft (4) passes through the mixing tank (3) and the outer shell (2) and is bolted with the first servo motor (6). The top two sides of the outer shell (2) are connected to the feed pipe (7), and the bottom of the feed pipe (7) is connected to the top of the mixing tank (3). The bottom of the mixing tank (3) is connected to the first discharge pipe (8). The other end of the first discharge pipe (8) is connected to the separation box (9). The center of the front of the inner cavity of the separation box (9) is rotatably connected to the rotating rod (10) through the bearing. The surface of the rotating rod (10) is bolted with the connecting frame (11). The inner side of the connecting frame (11) is bolted with the filter screen (12). The right side of the lower part of the inner cavity of the separation box (9) is bolted with the guide plate (13).
2. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 1, characterized in that: A protective cover (14) is bolted to the right side of the separation box (9), and a mounting groove (15) is bolted to the bottom of the protective cover (14).
3. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 2, characterized in that: The inner side of the mounting groove (15) is slidably connected to a waste bin (16), and the bottom of the separation box (9) is connected to a second discharge pipe (17).
4. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 3, characterized in that: The bottom of the second feed pipe (17) is connected to the vessel body (18).
5. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 4, characterized in that: A heater (24) is bolted to the lower left side of the outer shell (2), and a heating tube (25) is wound around the surface of the vessel body (18), with one end of the heating tube (25) connected to the heater (24).
6. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 1, characterized in that: The second servo motor (19) is bolted to the center of the front of the outer casing (2), and the front of the rotating rod (10) passes through the separation box (9) and the outer casing (2) and is bolted to the output end of the second servo motor (19).
7. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 4, characterized in that: A steam pipe (20) is connected to the right side of the top of the vessel body (18), and a third feed pipe (21) is connected to the bottom of the vessel body (18), and the other end of the third feed pipe (21) is connected to a storage tank (22).
8. The apparatus for preparing dioctyl cyclohexanedicarboxylate according to claim 1, characterized in that: Solenoid valves (23) are connected to the middle of the first feed pipe (8), the second feed pipe (17) and the third feed pipe (21).