Glycerin triacetate cooling crystallization device

Abstract

The utility model provides a glycerol triacetate cooling crystallization device, which relates to the technical field of cooling crystallization devices, and comprises a mixing assembly, the mixing assembly comprises a connecting rod arranged in an inner cavity of a reaction kettle body, a supporting rod is fixed on the side surface of the connecting rod, and a first stirring rod is fixed on the side surface of the supporting rod; a first scraping plate is fixed to one end of the first stirring rod, a second stirring rod is fixed to the bottom of the connecting rod, and a first guide groove is formed in the side face of the second stirring rod. By arranging the reaction kettle body, a reaction space can be provided for the reaction of glycerol triacetate, and by arranging the jacket layer, glycerol triacetate can be subjected to cooling crystallization processing; according to the reaction kettle, a supporting rod can be supported by arranging a connecting rod, glycerol triacetate can be mixed by arranging a first stirring rod, and glycerol triacetate attached to the inner wall of the reaction kettle body can be scraped off by arranging a first scraping plate.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling crystallization devices, and in particular to a triacetin cooling crystallization device. Background Technology

[0002] Triacetin cooling crystallization equipment is commonly used in the production process of triacetin. Its main function is to promote the crystallization of triacetin from the solution by precisely controlling the cooling conditions, thereby achieving solid-liquid separation and improving product purity and quality. At the same time, the equipment can regulate crystal growth to make the product particle size uniform, meeting the needs of different application scenarios and ensuring the production efficiency and quality of triacetin in industries such as chemical and tobacco.

[0003] In practice, existing cooling crystallization devices, through the combined use of refrigeration systems and stirring devices, can meet the basic requirements for triacetyl ester processing, but the following problems still exist:

[0004] In common triacetin cooling crystallization devices, the stirring blades are mostly straight or simple folded blades. This structure has a relatively simple way of acting on the material during rotation, mainly relying on the thrust of the blades to drive the material to move horizontally. It is difficult to form strong relative motion inside the material, resulting in insufficient shear force. This leads to poor mixing effect of the material in areas far from the blades, affecting the mixing effect. Therefore, this application provides a triacetin cooling crystallization device to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a cooling crystallization device for triacetin.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a triacetin cooling crystallization device, comprising a reaction vessel body and a jacket layer on the side of the reaction vessel body, a feeding port on the top of the reaction vessel body, and further comprising:

[0007] A mixing assembly includes a connecting rod disposed in the inner cavity of a reactor vessel, a support rod fixed to the side of the connecting rod, a first stirring rod fixed to the side of the support rod, a first scraper fixed to one end of the first stirring rod, a second stirring rod fixed to the bottom of the connecting rod, and a first guide groove provided on the side of the second stirring rod.

[0008] A driving assembly, the driving assembly including a sleeve disposed in the inner cavity of a reactor vessel, the inner cavity of the sleeve being provided with a fixing rod.

[0009] Furthermore, a second guide groove is provided at the top of the first stirring rod, and a mounting bracket is fixed to the side of the connecting rod away from the support rod.

[0010] The technical effects of adopting the above technical solution are: by opening the second guide groove, the stirring effect can be improved; and by setting the mounting frame, the second stirring rod can be supported.

[0011] Furthermore, a second scraper is fixed to the side of the mounting bracket, and the side of the second scraper is in contact with the inner cavity of the reactor body.

[0012] The technical effect of adopting the above technical solution is that by setting a second scraper, triacetin adhering to the inner wall of the reactor can be scraped off.

[0013] Furthermore, a fixing plate is fixed to the top of the second stirring rod.

[0014] The technical effect of adopting the above technical solution is that by setting a fixed plate, it can form an oblique angle with the first guide groove, thereby providing additional shear stress for triacetin during the stirring process.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] By setting up a reactor body, a reaction space can be provided for the reaction of triacetin. By setting up a jacket layer, triacetin can be cooled and crystallized. By setting up a connecting rod, a support rod can be supported. By setting up a first stirring rod, triacetin can be mixed. By setting up a first scraper, triacetin adhering to the inner wall of the reactor body can be scraped off. By setting up a second stirring rod, triacetin at the bottom of the reactor body cavity can be stirred. By opening a first guide groove, the material can be cut and squeezed during the mixing process, increasing the relative movement and friction between the materials and improving the shear stress. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a triacetin cooling crystallization device provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal connection structure of a triacetin cooling crystallization device provided by this utility model;

[0019] Figure 3 A schematic diagram of the connection structure of the mixing component of the triacetin cooling crystallization device provided by this utility model;

[0020] Figure 4This is a cross-sectional view of the drive assembly of a triacetin cooling crystallization device provided by this utility model.

[0021] Legend:

[0022] 1. Reactor body; 11. Jacket layer; 12. Feed port;

[0023] 2. Mixing component; 21. Connecting rod; 22. Support rod; 23. First stirring rod; 24. First scraper; 25. Mounting bracket; 26. Second scraper; 27. Second stirring rod; 28. First guide groove; 29. ​​Fixing plate; 210. Second guide groove;

[0024] 3. Drive assembly; 31. Telescopic rod; 32. Support frame; 33. Sleeve; 34. Fixing rod; 35. Slider; 36. Groove. Detailed Implementation

[0025] 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.

[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a triacetin cooling crystallization device, including a reactor body 1 and a jacket 11 disposed on the side of the reactor body 1, a feeding port 12 disposed on the top of the reactor body 1, and further including:

[0027] The mixing component 2 includes a connecting rod 21 disposed in the inner cavity of the reactor body 1, a support rod 22 fixed to the side of the connecting rod 21, a first stirring rod 23 fixed to the side of the support rod 22, a first scraper 24 fixed to one end of the first stirring rod 23, a second stirring rod 27 fixed to the bottom of the connecting rod 21, and a first guide groove 28 opened on the side of the second stirring rod 27.

[0028] The driving assembly 3 includes a sleeve 33 disposed within the inner cavity of the reactor body 1. A fixing rod 34 is disposed within the inner cavity of the sleeve 33. A second guide groove 210 is formed at the top of the first stirring rod 23. A mounting bracket 25 is fixed to the side of the connecting rod 21 away from the support rod 22. A second scraper 26 is fixed to the side of the mounting bracket 25, and the side of the second scraper 26 fits against the inner cavity of the reactor body 1. A fixing plate 29 is fixed to the top of the second stirring rod 27. The first guide groove 28 has a certain angle of inclination, wider on one side and narrower on the other. Through the cooperation of the first guide groove 28 and the fixing plate 29, an angle with a certain angle can be formed. The top of the connecting rod 21 is fixed to the bottom of the fixing rod 34. By setting up the driving assembly 3, the mixing assembly 2 can be rotated. The system provides power and supports the first stirring rod 23 and the mounting frame 25 via a support rod 22. The top and sides of the first scraper 24 and the second scraper 26 are provided with inclined grooves at a certain angle. When the first stirring rod 23 stirs the triacetin, the second guide groove 210 and the first scraper 24 can cut the uniformly distributed area while mixing, thereby forming a stronger local turbulence and shear force field, and thus achieving a more uniform mixing effect. Similarly, when the mounting frame 25 and the second stirring rod 27 mix the triacetin at the bottom, the cutting force generated by the second scraper 26, the first guide groove 28 and the fixing plate 29 can effectively break the triacetin, improve the mixing efficiency and ensure the uniformity of the mixture.

[0029] Furthermore, such as Figure 2 and Figure 4 As shown: A support frame 32 is fixed to the side of the sleeve 33. The end of the support frame 32 away from the sleeve 33 is fixed to the inner wall of the reactor body 1. A telescopic rod 31 is fixed to the top of the fixing rod 34. A slider 35 is fixed to the side of the fixing rod 34. A groove 36 is opened in the inner cavity of the sleeve 33. One end of the slider 35 extends into the inner cavity of the groove 36 and is slidably connected to the inner cavity of the groove 36. The shape of the groove 36 is set as an oblique circle. A drive motor is set at the top of the telescopic rod 31. By setting the telescopic rod 31, the movement distance of the fixing rod 34 can be compensated. By starting the motor... The motor outputs forward rotation, which drives the fixed rod 34 to move clockwise via the telescopic rod 31, thereby driving the connecting rod 21 to rotate clockwise. The support frame 32 and sleeve 33 installed on the inner wall of the reactor body 1 cooperate to limit the movement trajectory of the fixed rod 34. When the fixed rod 34 rotates clockwise, the slider 35 and groove 36 cooperate to make the fixed rod 34 reciprocate and lift while rotating, thereby driving the mixing component 2 to lift, effectively improving the stirring efficiency and stirring range.

[0030] like Figure 1-4 As shown:

[0031] In use: First, triacetin and additives are added into the inner cavity of the reactor body 1 through the feeding port 12. Then, the drive motor located at the top of the telescopic rod 31 is started. The output shaft of the motor rotates clockwise, thereby driving the fixed rod 34 and the slider 35 to move clockwise along the inner cavity of the groove 36 via the telescopic rod 31. When the fixed rod 34 rotates to a certain position, it moves downward, thereby driving the connecting rod 21 to move up and down while rotating. When the connecting rod 21 rotates, the first stirring rod 23 and the first scraper 24 work together to stir the triacetin in the upper half of the inner cavity of the reactor body 1. During the stirring process, the second guide groove 210 is provided to increase the shear stress on the triacetin. Similarly, when the connecting rod 21 drives the mounting frame 25 to move, the first guide groove 28 and the second stirring rod 27 work together to mix the triacetin in the lower half of the inner cavity of the reactor body 1, further improving the mixing effect. During the mixing process, the first scraper 24 and the second scraper 26 work together to scrape off the triacetin adhering to the inner wall of the reactor body 1. After the heating and mixing are completed, the crystallization process of the triacetin is completed by injecting a cooling medium into the inner cavity of the jacket layer 11.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A triacetin cooling crystallization apparatus, comprising a reactor body (1) and a jacket layer (11) disposed on the side of the reactor body (1), wherein a feeding port (12) is provided at the top of the reactor body (1), characterized in that, Also includes: The mixing component (2) includes a connecting rod (21) disposed in the inner cavity of the reactor body (1), a support rod (22) fixed to the side of the connecting rod (21), a first stirring rod (23) fixed to the side of the support rod (22), a first scraper (24) fixed to one end of the first stirring rod (23), a second stirring rod (27) fixed to the bottom of the connecting rod (21), and a first guide groove (28) opened on the side of the second stirring rod (27). The driving assembly (3) includes a sleeve (33) disposed in the inner cavity of the reactor body (1), and a fixing rod (34) is disposed in the inner cavity of the sleeve (33).

2. The triacetin cooling crystallization apparatus according to claim 1, characterized in that, The top of the first stirring rod (23) is provided with a second guide groove (210), and the side of the connecting rod (21) away from the support rod (22) is fixed with a mounting bracket (25).

3. The triacetin cooling crystallization apparatus according to claim 2, characterized in that, The mounting bracket (25) has a second scraper (26) fixed to its side, and the side of the second scraper (26) is in contact with the inner cavity of the reactor body (1).

4. The triacetin cooling crystallization apparatus according to claim 1, characterized in that, The top of the second stirring rod (27) is fixed with a fixing plate (29).

5. The triacetin cooling crystallization apparatus according to claim 1, characterized in that, A support frame (32) is fixed to the side of the sleeve (33), and the end of the support frame (32) away from the sleeve (33) is fixed to the inner wall of the reactor body (1). A telescopic rod (31) is fixed to the top of the fixing rod (34).

6. The triacetin cooling crystallization apparatus according to claim 1, characterized in that, The side of the fixed rod (34) is fixed with a slider (35), and the inner cavity of the sleeve (33) is provided with a groove (36). One end of the slider (35) extends into the inner cavity of the groove (36), and one end of the slider (35) is slidably connected to the inner cavity of the groove (36).

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