A rapid acylation device for tributyl citrate

Abstract

This utility model belongs to the field of chemical catalyst production technology, and particularly relates to a rapid acylation device for tributyl citrate, comprising: an acylation tank, a top cover fixedly installed on the top surface of the tank, a rotating tube rotatably installed between the top cover and the acylation tank, multiple second stirring rods fixedly installed on the outer wall of the rotating tube, two stirring columns fixedly installed on each side of the rotating tube, and a side groove opened on one side of each of the four stirring columns, a motor fixedly installed on the bottom surface of the acylation tank, the top end of the motor output shaft being fixedly connected to the bottom end of the rotating tube, the raw material being injected into the acylation tank through a feeding trough, and a sealing cover being fitted into the feeding trough to ensure a seal on the top cover, the motor being started to drive the rotating tube to rotate, and the stirring columns, second stirring rods, first stirring rods, and connecting rods stirring the raw material inside the acylation tank when the rotating tube rotates, thereby accelerating the acylation effect.

Description

Technical Field

[0001] This utility model belongs to the field of chemical catalyst production technology, and in particular relates to a rapid acylation device for tributyl citrate. Background Technology

[0002] Tributyl citrate is a green and environmentally friendly catalyst, widely used as a plasticizer in food packaging, daily necessities, and children's toys. Tributyl citrate has advantages such as good compatibility, high plasticizing efficiency, easy degradation, non-toxicity, and low volatility. It also exhibits excellent water resistance, light resistance, and cold resistance, making it an ideal substitute for plasticizers such as phthalic acid.

[0003] In existing production processes, tributyl citrate is typically produced by placing the raw material into an acylation tank for acylation. To accelerate the acylation process, a stirring column is usually installed to agitate the raw material. However, during processing, a large amount of raw material adheres to the inner wall of the existing acylation tank. A scraper is usually installed on the stirring device to scrape off this material. However, the existing scrapers are usually in a fixed position and cannot be adjusted. The scraper is constantly in contact with the inner wall of the acylation tank, which leads to wear on the scraper or the inner wall of the acylation tank. After wear, the scraper can no longer adhere to the inner wall of the acylation tank, making it impossible for the scraper to clean the impurities on the inner wall of the acylation tank. In view of this, we propose a rapid acylation device for tributyl citrate. Utility Model Content

[0004] The purpose of this invention is to provide a rapid acylation device for tributyl citrate to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a rapid acylation device for tributyl citrate, comprising:

[0006] An acylation tank is provided with a top cover fixedly installed on its top surface. A rotating tube is rotatably installed between the top cover and the acylation tank. Multiple second stirring rods are fixedly installed on the outer wall of the rotating tube. Two stirring columns are fixedly installed on both sides of the rotating tube. A side groove is opened on one side of each of the four stirring columns. A motor is fixedly installed on the bottom surface of the acylation tank. The top end of the motor output shaft is fixedly connected to the bottom end of the rotating tube.

[0007] Two scrapers are disposed inside the acylation tank, and the two scrapers are slidably installed in four side grooves respectively;

[0008] An adjustment component is mounted on a movable base and is used to move two scrapers.

[0009] Multiple first stirring rods are fixedly installed on one side of two scrapers. A heating rod is fixedly installed on the bottom surface of the acylation tank. The raw material is injected into the acylation tank through the feeding trough. The sealing cover is fitted into the feeding trough to ensure the top cover is sealed. At this time, the motor is started to drive the rotating tube to rotate. When the rotating tube rotates, the stirring column, the second stirring rod, the first stirring rod, and the connecting rod can stir the raw material inside the acylation tank, thereby accelerating the acylation effect.

[0010] In the above technical solution, the adjusting component further includes two sliding grooves, which are respectively opened on both sides of the rotating tube. A movable column is slidably installed inside the rotating tube, and a movable seat is slidably installed inside each of the two sliding grooves. One end of each of the two movable seats is fixedly connected to both sides of the movable column. A fixed seat is fixedly installed on one side of each of the two scrapers, and a connecting rod is rotatably installed inside each of the two fixed seats. The bottom ends of the two connecting rods are rotatably installed inside the two movable seats. When the movable seats slide in the sliding grooves, the scrapers are pushed outward by the cooperation of the connecting rods and the fixed seats. After the scrapers contact the inner wall of the acylation tank, the motor is started to drive the rotating tube to rotate, thereby cleaning the impurities attached to the inner wall of the acylation tank by the scrapers. This method is quite practical. This method can adjust the position of the scrapers according to the situation to avoid the scrapers constantly contacting the inner wall of the acylation tank, which could cause wear on the scrapers or the inner wall of the acylation tank.

[0011] In the above technical solution, the adjusting component further includes a top sleeve, which is rotatably mounted on the top surface of the top cover. The top end of the rotating tube is fixedly connected to the bottom end of the top sleeve, and the rotating tube is connected to the top sleeve. A threaded rod is threadedly connected to the top of the top sleeve, and the bottom end of the threaded rod is rotatably connected to the top end of the movable column. When the threaded rod is rotated and rises, it will drive the movable column to rise. When the movable column rises, it will drive the moving seat to slide in the slide groove.

[0012] In the above technical solution, the outer wall of the threaded rod is provided with a storage state insertion hole, and the top sleeve is movably connected to the storage state insertion hole with the same pin. When the scraper is not in contact with the inner wall of the acylation tank and is in the storage state, the pin is sleeved in the storage state insertion hole to limit the threaded rod, thereby keeping the scraper in the storage state.

[0013] In the above technical solution, the outer side wall of the threaded rod is provided with an unfolded state insertion hole, and the pin is sleeved with the unfolded state insertion hole. When the scraper contacts the inner wall of the acylation tank, the pin is sleeved in the unfolded state insertion hole, which can limit the threaded rod and prevent the scraper from moving during use.

[0014] In the above technical solution, the top surface of the top cover is provided with a feeding groove, a sealing cover is movably sleeved in the feeding groove, the surface of the sealing cover is provided with a sealing strip, and multiple limiting blocks are fixedly installed on the inner side wall of the feeding groove, with the top surface of the multiple limiting blocks contacting the bottom surface of the sealing cover.

[0015] In the above technical solution, a pull rod is further fixedly installed on the top surface of the sealing cover, and the sealing cover can be opened by pulling the pull rod.

[0016] In the above technical solution, furthermore, the bottom surface of the acylation tank is fixedly installed with multiple support legs, and the bottom surface of the acylation tank is fixedly installed with a discharge pipe. The discharge pipe is equipped with a valve. By setting support legs, the stability of the acylation tank when placed will be enhanced. By opening the valve, the raw material in the acylation tank will be discharged through the discharge pipe.

[0017] In the above technical solution, the lengths of the multiple second stirring rods decrease sequentially from top to bottom, while the lengths of the multiple first stirring rods increase sequentially from top to bottom. This design of the first and second stirring rods prevents them from contacting the connecting rod, and ensures that the movement of the connecting rod is not affected when it deforms.

[0018] The beneficial effects of this utility model are:

[0019] 1. This rapid acylation device for tributyl citrate involves injecting the raw material into the acylation tank through a feeding trough, and then fitting a sealing cap into the feeding trough to ensure a tight seal. At this point, the motor is started to drive the rotating tube to rotate. When the rotating tube rotates, the stirring column, the second stirring rod, the first stirring rod, and the connecting rod can stir the raw material inside the acylation tank, thereby accelerating the acylation effect.

[0020] 2. This rapid acylation device for tributyl citrate, when it is necessary to scrape off residual impurities from the inner wall of the acylation tank, involves rotating a threaded rod. As the threaded rod rises, it drives a movable column to rise, which in turn causes a moving seat to slide within a groove. When the moving seat slides within the groove, the connecting rod and fixed seat work together to push the scraper outward. After the scraper contacts the inner wall of the acylation tank, the motor is started to rotate the rotating tube, thereby cleaning the impurities adhering to the inner wall of the acylation tank. This method is quite practical. The position of the scraper can be adjusted according to the situation to avoid the scraper constantly contacting the inner wall of the acylation tank, which could cause wear on the scraper or the inner wall of the acylation tank. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the acylation tank of this utility model;

[0023] Figure 3 This is a schematic diagram of the scraper structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the acylation tank of this utility model;

[0025] Figure 5 This is a schematic diagram of the feeding trough structure of this utility model;

[0026] Figure 6 This is the utility model Figure 3 Enlarged structural diagram of section A in the middle.

[0027] The markings in the diagram are as follows:

[0028] 1. Acidification tank; 2. Top cover; 3. Rotating tube; 4. Side groove; 5. Scraper; 6. First stirring rod; 7. Second stirring rod; 8. Heating rod; 9. Discharge pipe; 10. Feeding trough; 11. Sealing cover; 12. Hand lever; 13. Limiting block; 14. Valve; 15. Support leg; 16. Movable column; 17. Slide groove; 18. Moving seat; 19. Fixed seat; 20. Connecting rod; 21. Top sleeve; 22. Hole in retracted state; 23. Hole in unfolded state; 24. Pin; 25. Stirring column; 26. Threaded rod; 27. Motor. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example 1

[0034] Please see Figures 1-6 As shown, this embodiment provides a rapid acylation device for tributyl citrate.

[0035] include:

[0036] An acylation tank 1 is fixedly mounted with a top cover 2. A rotating tube 3 is rotatably mounted between the top cover 2 and the acylation tank 1. Multiple second stirring rods 7 are fixedly mounted on the outer side wall of the rotating tube 3. Two stirring columns 25 are fixedly mounted on both sides of the rotating tube 3. A side groove 4 is opened on one side of each of the four stirring columns 25. A motor 27 is fixedly mounted on the bottom surface of the acylation tank 1. The top end of the output shaft of the motor 27 is fixedly connected to the bottom end of the rotating tube 3.

[0037] Two scrapers 5 are installed inside the acylation tank 1, and the two scrapers 5 are slidably installed in the four side grooves 4 respectively;

[0038] An adjustment component is mounted on the movable base 18 and is used to move the two scrapers 5.

[0039] Multiple first stirring rods 6 are fixedly installed on one side of two scrapers 5. A heating rod 8 is fixedly installed on the bottom of the acylation tank 1. The raw material is injected into the acylation tank 1 through the feeding trough 10. The sealing cover 11 is fitted into the feeding trough 10 to ensure the top cover 2 is sealed. At this time, the motor 27 is started to drive the rotating tube 3 to rotate. When the rotating tube 3 rotates, the stirring column 25, the second stirring rod 7, the first stirring rod 6, and the connecting rod 20 can stir the raw material inside the acylation tank 1, thereby accelerating the acylation effect. Example 2

[0040] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] The adjustment assembly includes two sliding grooves 17, which are respectively opened on both sides of the rotating tube 3. A movable column 16 is slidably installed inside the rotating tube 3. A movable seat 18 is slidably installed in each of the two sliding grooves 17. One end of each movable seat 18 is fixedly connected to both sides of the movable column 16. A fixed seat 19 is fixedly installed on one side of each of the two scrapers 5. A connecting rod 20 is rotatably installed in each of the two fixed seats 19. The bottom ends of the two connecting rods 20 are rotatably installed in the two movable seats 18. When the movable seat 18 slides in the sliding groove 17, the scraper 5 is pushed outward by the cooperation of the connecting rod 20 and the fixed seat 19. After the scraper 5 contacts the inner wall of the acylation tank 1, the motor 27 is started to drive the rotating tube 3 to rotate, thereby cleaning the impurities attached to the inner wall of the acylation tank 1 by the scraper 5. This method is quite practical. The position of the scraper 5 can be adjusted according to the situation to avoid the scraper 5 from being in constant contact with the inner wall of the acylation tank 1, which would cause wear on the scraper 5 or the inner wall of the acylation tank 1. Example 3

[0042] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] The adjustment assembly also includes a top sleeve 21, which is rotatably mounted on the top surface of the top cover 2. The top end of the rotating tube 3 is fixedly connected to the bottom end of the top sleeve 21, and the rotating tube 3 is connected to the top sleeve 21. A threaded rod 26 is threadedly connected inside the top sleeve 21. The bottom end of the threaded rod 26 is rotatably connected to the top end of the movable column 16. When the threaded rod 26 is rotated and rises, it will drive the movable column 16 to rise. When the movable column 16 rises, it will drive the moving seat 18 to slide in the slide groove 17. Example 4

[0044] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The outer wall of the threaded rod 26 is provided with a storage state insertion hole 22. The top sleeve 21 is movably connected to the same pin 24 in the storage state insertion hole 22. When the scraper 5 is not in contact with the inner wall of the acylation tank 1 and is in the storage state, the pin 24 is sleeved in the storage state insertion hole 22 to limit the threaded rod 26, thereby keeping the scraper 5 in the storage state. Example 5

[0046] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] The threaded rod 26 has an extended state insertion hole 23 on its outer side wall. The pin 24 is sleeved with the extended state insertion hole 23. When the scraper 5 contacts the inner wall of the acylation tank 1, the pin 24 is sleeved in the extended state insertion hole 23, which can limit the threaded rod 26 and prevent the scraper 5 from moving during use.

[0048] The top surface of the top cover 2 is provided with a feeding groove 10, and a sealing cover 11 is movably sleeved inside the feeding groove 10. The surface of the sealing cover 11 is provided with a sealing strip. Multiple limiting blocks 13 are fixedly installed on the inner side wall of the feeding groove 10, and the top surface of the multiple limiting blocks 13 is in contact with the bottom surface of the sealing cover 11.

[0049] The sealing cover 11 is fixedly installed with a pull rod 12 on its top surface, which can be used to open the sealing cover 11. Example 6

[0050] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] The bottom surface of the acylation tank 1 is fixedly equipped with multiple support legs 15, and the bottom surface of the acylation tank 1 is fixedly equipped with a discharge pipe 9. The discharge pipe 9 is equipped with a valve 14. By setting the support legs 15, the stability of the acylation tank 1 when it is placed will be enhanced. By opening the valve 14, the raw material in the acylation tank 1 will be discharged through the discharge pipe 9. Example 7

[0052] This embodiment provides a rapid acylation device for tributyl citrate, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] The lengths of the multiple second stirring rods 7 decrease sequentially from top to bottom, while the lengths of the multiple first stirring rods 6 increase sequentially from top to bottom. This design of the first stirring rods 6 and the second stirring rods 7 prevents them from contacting the connecting rod 20, and ensures that the movement of the connecting rod 20 is not affected when the connecting rod 20 deforms.

[0054] In use: the raw material is injected into the acylation tank 1 through the feeding trough 10, and the sealing cover 11 is fitted into the feeding trough 10 to ensure the top cover 2 is sealed. At this time, the motor 27 is started to drive the rotating tube 3 to rotate. When the rotating tube 3 rotates, the stirring column 25, the second stirring rod 7, the first stirring rod 6, and the connecting rod 20 can stir the raw material inside the acylation tank 1, thereby accelerating the acylation effect.

[0055] When it is necessary to scrape off residual impurities on the inner wall of the acylation tank 1, the threaded rod 26 is rotated. When the threaded rod 26 rises, it will drive the movable column 16 to rise. When the movable column 16 rises, it will drive the movable seat 18 to slide in the slide groove 17. When the movable seat 18 slides in the slide groove 17, it will push the scraper 5 to move outward through the cooperation of the connecting rod 20 and the fixed seat 19. After the scraper 5 contacts the inner wall of the acylation tank 1, the motor 27 is started to drive the rotating tube 3 to rotate, thereby realizing the cleaning of the impurities attached to the inner wall of the acylation tank 1 by the scraper 5. This method is quite practical. The position of the scraper 5 can be adjusted according to the situation to avoid the scraper 5 from being in constant contact with the inner wall of the acylation tank 1, which would cause wear on the scraper 5 or the inner wall of the acylation tank 1.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A device for rapid acylation of tributyl citrate, characterized in that ,include: An acylation tank (1) is provided with a top cover (2) fixedly installed on its top surface. A rotating tube (3) is rotatably installed between the top cover (2) and the acylation tank (1). Multiple second stirring rods (7) are fixedly installed on the outer side wall of the rotating tube (3). Two stirring columns (25) are fixedly installed on both sides of the rotating tube (3). A side groove (4) is opened on one side of each of the four stirring columns (25). A motor (27) is fixedly installed on the bottom surface of the acylation tank (1). The top end of the output shaft of the motor (27) is fixedly connected to the bottom end of the rotating tube (3). Two scrapers (5) are disposed inside the acylation tank (1) and are respectively slidably installed in four side grooves (4); An adjustment component is provided on a movable base (18) and is used to move two scrapers (5); Multiple first stirring rods (6) are fixedly installed on one side of two scrapers (5), and heating rods (8) are fixedly installed on the bottom surface of the acylation tank (1).

2. A device for rapid acylation of tributyl citrate according to claim 1, characterized in that, The adjustment assembly includes two slide grooves (17), which are respectively opened on both sides of the rotating tube (3). A movable column (16) is slidably installed in the rotating tube (3). A movable seat (18) is slidably installed in each of the two slide grooves (17). One end of each of the two movable seats (18) is fixedly connected to both sides of the movable column (16). A fixed seat (19) is fixedly installed on one side of each of the two scrapers (5). A connecting rod (20) is rotatably installed in each of the two fixed seats (19). The bottom ends of the two connecting rods (20) are rotatably installed in the two movable seats (18).

3. A device for rapid acylation of tributyl citrate according to claim 2, characterized in that, The adjustment assembly also includes a top sleeve (21), which is rotatably mounted on the top surface of the top cover (2). The top end of the rotating tube (3) is fixedly connected to the bottom end of the top sleeve (21). The rotating tube (3) is connected to the top sleeve (21). The top sleeve (21) is internally threaded with a threaded rod (26), and the bottom end of the threaded rod (26) is rotatably connected to the top end of the movable column (16).

4. A device for rapid acylation of tributyl citrate according to claim 3, characterized in that, The outer wall of the threaded rod (26) is provided with a storage state insertion hole (22), and the top sleeve (21) is movably connected to the storage state insertion hole (22) with the same pin (24).

5. A device for rapid acylation of tributyl citrate according to claim 4, characterized in that, The outer wall of the threaded rod (26) is provided with an unfolded state insertion hole (23), and the pin (24) is sleeved and engaged with the unfolded state insertion hole (23).

6. A device for rapid acylation of tributyl citrate according to claim 1, characterized in that, The top surface of the top cover (2) is provided with a feeding groove (10), and a sealing cover (11) is movably sleeved inside the feeding groove (10). The surface of the sealing cover (11) is provided with a sealing strip. Multiple limiting blocks (13) are fixedly installed on the inner side wall of the feeding groove (10), and the top surface of the multiple limiting blocks (13) is in contact with the bottom surface of the sealing cover (11).

7. A device for rapid acylation of tributyl citrate according to claim 6, characterized in that, A pull rod (12) is fixedly installed on the top surface of the sealing cover (11).

8. A device for rapid acylation of tributyl citrate according to claim 1, characterized in that, The bottom surface of the acylation tank (1) is fixedly equipped with multiple support legs (15), and the bottom surface of the acylation tank (1) is fixedly equipped with a discharge pipe (9), and a valve (14) is provided on the discharge pipe (9).

9. A device for rapid acylation of tributyl citrate according to claim 1, characterized in that, The lengths of the plurality of second stirring rods (7) decrease sequentially from top to bottom, while the lengths of the plurality of first stirring rods (6) increase sequentially from top to bottom.

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