Continuous esterification preparation equipment based on acetyl tributyl citrate

Abstract

The utility model belongs to the technical field of esterification preparation equipment, and particularly relates to acetyl tributyl citrate-based continuous esterification preparation equipment which comprises a preparation barrel, a motor I is fixedly mounted at the top of the preparation barrel, and an output shaft of the motor I penetrates through the preparation barrel, extends into an inner cavity of the preparation barrel and is fixedly provided with a stirring shaft; a heating cavity is formed in the inner wall of the preparation barrel, a heating wire is fixedly installed in the heating cavity, two ventilation pipes are fixedly installed at the top of the preparation barrel, an activated carbon filter screen is installed at the tops of the ventilation pipes in an inserted connection mode, a negative pressure fan and two fixing assemblies are fixedly installed in one ventilation pipe, and the two fixing assemblies are located in the two ventilation pipes correspondingly; the two fixing plates are respectively used for fixing the positions of the two activated carbon filter screens; when the whole device is used, raw materials can be filtered and screened, the situation that the raw materials contain impurities is avoided, and meanwhile the temperature in the preparation barrel can be adjusted to ensure that the temperature in the preparation barrel is appropriate.

Description

Technical Field

[0001] The utility model belongs to the technical field of esterification preparation equipment, and particularly relates to a continuous esterification preparation equipment based on tributyl acetylcitrate. Background Technique

[0002] Tributyl acetylcitrate is an organic compound with the chemical formula C20H34O8. It is a colorless and odorless oily liquid, soluble in most organic solvents but insoluble in water. This compound is usually used as a plasticizer for polyvinyl chloride, cellulose resin and synthetic rubber because it is compatible with various celluloses, vinyl resins, chlorinated rubber, etc.

[0003] For example, the Chinese patent with the publication number CN219252589U discloses a catalytic esterification reaction equipment for ethyl lactate, including a reaction tank. The inner wall of the bottom of the reaction tank is rotationally connected with a rotating column through a bearing, and the top end of the rotating column is fixed with a reaction barrel through bolts. A first gear is welded on the outer wall of the rotating column. A driving motor is fixed on the inner wall of the bottom of the reaction tank through bolts, and a second gear is fixed on the output end of the driving motor through bolts. The second gear meshes with the first gear. An annular groove is opened on the inner wall of the top of the reaction tank. In the utility model, the driving motor can drive the first gear to rotate and mesh with the second gear, so that the second gear can drive the rotating column, the reaction barrel and the stirring rod to rotate forward. The stirring motor can drive the stirring shaft rod to rotate reversely, so that the stirring shaft rod and the stirring rod rotate in opposite directions, and the effect of stirring and mixing the ethyl lactate raw material and the catalyst is better and the mixing efficiency is faster.

[0004] The above patent has the following problems:

[0005] There are some disadvantages in the use of this patent. For example, when the above device is carrying out esterification, it may be due to impurities in the raw materials, resulting in unqualified raw materials after the work is completed. At the same time, the above device cannot control the temperature during work, and too high or too low temperature may affect the progress of the reaction and the quality of the product. In view of this, we propose a continuous esterification preparation equipment based on tributyl acetylcitrate. Content of the Utility Model

[0006] The purpose of the utility model is to provide a continuous esterification preparation equipment based on tributyl acetylcitrate to solve the problems put forward in the above background technique.

[0007] In view of this, the utility model provides a continuous esterification preparation equipment based on tributyl acetylcitrate, including:

[0008] Preparation barrel, a first motor is fixedly installed at the top of the preparation barrel, the output shaft of the first motor penetrates through the preparation barrel and extends into the inner cavity of the preparation barrel and is fixedly installed with a stirring shaft, a heating cavity is opened on the inner wall of the preparation barrel, a heating wire is fixedly installed in the heating cavity, two ventilation pipes are fixedly installed at the top of the preparation barrel, an activated carbon filter screen is inserted and installed at the top of the ventilation pipe, and a negative pressure fan is fixedly installed in one of the ventilation pipes;

[0009] Two fixing components, the two fixing components are respectively located in the two ventilation pipes and are respectively used for fixing the positions of the two activated carbon filter screens;

[0010] Feeding pipe, the feeding pipe is fixedly installed at the top of the preparation barrel, and a feeding box is fixedly installed at the top of the feeding pipe. An impurity filter screen one is rotatably installed in the feeding box, one end of the impurity filter screen one penetrates through the feeding box and extends to the outside, and an impurity collection box is fixedly installed on one side of the feeding box and below the impurity filter screen one. A rotating column is rotatably installed in the feeding box and below the impurity filter screen one. One side of the rotating column contacts the bottom of the impurity filter screen one. An impurity filter screen two is fixedly installed on one side of the feeding box close to the impurity collection box;

[0011] Driving component, the driving component is located on the feeding box and is used for driving the rotating column to rotate.

[0012] In this technical solution, when raw materials need to be fed, first pour the raw materials into the feeding box. Then the raw materials fall into the feeding pipe through the filtration of the impurity filter screen one. By setting the driving component, the rotating column can be driven to rotate. The rotating column will knock on the bottom of the impurity filter screen one, causing the impurity filter screen one to rotate upward in the feeding box. Then under the action of gravity, the impurity filter screen one rotates downward, achieving the effect of vibrating the impurity filter screen one. Under the action of the inclined setting of the impurity filter screen one, the impurities on the impurity filter screen one can slowly slide towards the impurity collection box, and the blockage of the impurity filter screen one can be avoided. The water contained in the impurities in the impurity collection box will flow through the inclined bottom of the impurity collection box to the impurity filter screen two, and finally enter the feeding box through the impurity filter screen two. The raw materials then enter the feeding pipe through the feeding box, and finally the raw materials in the feeding pipe enter the preparation barrel, achieving the effect of filtering and screening the raw materials, and the situation where the raw materials contain impurities will not occur;

[0013] When it is necessary to stir the raw materials, first start Motor 1. Motor 1 is powered on and operates to drive the stirring shaft to rotate, and at this time, the raw materials in the preparation barrel can be stirred. When the temperature in the preparation barrel is relatively low, the heating wire can be started to heat the raw materials in the preparation barrel. When the temperature in the preparation barrel is relatively high, turn off the heating wire and start the negative pressure fan. The negative pressure fan will discharge the hot air in the preparation barrel to the outside through the activated carbon filter screen at the top. At the same time, fresh air from the outside will enter the preparation barrel through another activated carbon filter screen, achieving the effect of reducing the temperature in the preparation barrel. And the two activated carbon filter screens can purify the gas. The activated carbon filter screen can prevent harmful gases from being inhaled by the human body and at the same time prevent dust from the outside from entering the preparation barrel. When the preparation is completed, open the valve on the discharge port, and the raw materials are discharged to the outside through the discharge port. The inner cavity of the preparation barrel is funnel-shaped, ensuring that all the raw materials can be discharged to the outside through the discharge port;

[0014] When it is necessary to disassemble and replace one of the activated carbon filter screens, through the provided fixing component, the activated carbon filter screen can be pulled upward. Subsequently, place the new activated carbon filter screen above one of the ventilation pipes. Through the provided fixing component, the position of the activated carbon filter screen can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter screen, and no tools are required.

[0015] In the above technical solution, further, the fixing component includes:

[0016] A sliding groove, the sliding groove is opened in the ventilation pipe, and two L-shaped rods are slidably installed in the sliding groove. A plurality of springs are fixedly installed on the side of the two L-shaped rods close to each other. One end of each of the two L-shaped rods away from each other penetrates through the sliding groove and extends into the activated carbon filter screen. The L-shaped rod is in plug-in fit with the activated carbon filter screen, and one end of the L-shaped rod penetrates through the sliding groove and extends to the outside.

[0017] In this technical solution, when it is necessary to feed the raw materials, first pour the raw materials into the feeding box. Then the raw materials fall into the feeding pipe through the filtration of the impurity filter screen 1. At the same time, start Motor 2. Motor 2 is powered on and operates to drive the rotating column to rotate. The rotating column will knock on the bottom of the impurity filter screen 1, causing the impurity filter screen 1 to rotate upward in the feeding box. Subsequently, under the action of gravity, the impurity filter screen 1 rotates downward, achieving the effect of vibrating the impurity filter screen 1. Under the action of the inclined setting of the impurity filter screen 1, the impurities on the impurity filter screen 1 can slowly slide towards the impurity collection box, and the blockage of the impurity filter screen 1 can be avoided. The water contained in the impurities in the impurity collection box will flow towards the impurity filter screen 2 through the inclined bottom of the impurity collection box, and finally enter the feeding box through the impurity filter screen 2. The raw materials then enter the feeding pipe through the feeding box, and finally the raw materials in the feeding pipe enter the preparation barrel, achieving the effect of filtering and screening the raw materials, and the situation where the raw materials contain impurities will not occur.

[0018] In the above technical solution, further, the driving component includes:

[0019] The second motor is fixedly installed on one side of the feeding box, and the second motor is located on one side of the rotating column. The output shaft of the second motor penetrates through the feeding box and is coaxially connected with the rotating column.

[0020] In this technical solution, when it is necessary to disassemble and replace one of the activated carbon filters, first pull two of the L-shaped rods close to each other. At the same time, several springs are compressed and contracted. When both L-shaped rods are disengaged from the activated carbon filter, the activated carbon filter can be pulled upward. Then, place a new activated carbon filter above one of the vent pipes, and then release the two L-shaped rods. Under the action of the elastic force of several springs, the two L-shaped rods slide and move away from each other. Then, both L-shaped rods are inserted into the activated carbon filter, and the position of the activated carbon filter can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter without the need to use tools.

[0021] In the above technical solution, further, the output shaft of the second motor is rotatably connected to the feeding box, and the stirring shaft and the output shaft of the first motor are both rotatably connected to the preparation barrel.

[0022] In this technical solution, it is ensured that the output shaft of the second motor can rotate in the feeding box, and it is ensured that the stirring shaft and the output shaft of the first motor can both rotate on the preparation barrel.

[0023] In the above technical solution, further, the first impurity filter is inclined, the inner cavity bottom of the preparation barrel is funnel-shaped, the bottom of the impurity collection box is inclined, and the inner wall of the heating chamber is coated with heat-insulating paint.

[0024] In this technical solution, under the action of the inclination of the first impurity filter, the impurities on the first impurity filter can slowly slide towards the impurity collection box. The inner cavity of the preparation barrel is funnel-shaped, ensuring that all the raw materials can be discharged to the outside through the discharge port. The personnel can be prevented from being scalded by the coated heat-insulating paint.

[0025] In the above technical solution, further, a discharge port is fixedly installed at the bottom of the preparation barrel, and a valve is arranged on the discharge port.

[0026] In this technical solution, when the preparation is completed, open the valve on the discharge port, and the raw materials are discharged to the outside through the discharge port.

[0027] The beneficial effects of the present utility model are:

[0028] 1. The continuous esterification preparation equipment based on tributyl acetylcitrate can drive the rotating column to rotate through the set driving component. The rotating column will knock on the bottom of the impurity filter screen I, causing the impurity filter screen I to rotate upward in the feeding box. Subsequently, under the action of gravity, the impurity filter screen I will rotate downward, achieving the effect of vibrating the impurity filter screen I. Under the action of the inclined setting of the impurity filter screen I, the impurities on the impurity filter screen I can slowly slide towards the impurity collection box, and the blockage of the impurity filter screen I can be avoided. The moisture contained in the impurities in the impurity collection box will flow through the inclined bottom of the impurity collection box to the impurity filter screen II, and finally enter the feeding box through the impurity filter screen II. The raw materials then enter the feeding pipe through the feeding box, achieving the effect of filtering and screening the raw materials, and there will be no situation where the raw materials contain impurities.

[0029] 2. For the continuous esterification preparation equipment based on tributyl acetylcitrate, when it is necessary to stir the raw materials, first start the first motor. The first motor is powered on and drives the stirring shaft to rotate, and at this time, the raw materials in the preparation barrel can be stirred. When the temperature in the preparation barrel is relatively low, the heating wire can be started to heat the raw materials in the preparation barrel. When the temperature in the preparation barrel is relatively high, turn off the heating wire and start the negative pressure fan. The negative pressure fan will discharge the hot air in the preparation barrel to the outside through the activated carbon filter screen at the top. At the same time, the fresh air from the outside will enter the preparation barrel through another activated carbon filter screen, achieving the effect of reducing the temperature in the preparation barrel, and the two activated carbon filter screens can purify the gas. The activated carbon filter screen can prevent harmful gases from being inhaled by the human body and can also prevent dust from the outside from entering the preparation barrel.

[0030] 3. For the continuous esterification preparation equipment based on tributyl acetylcitrate, when it is necessary to disassemble and replace one of the activated carbon filter screens, the set fixing component can be used to pull the activated carbon filter screen upward. Subsequently, place the new activated carbon filter screen above one of the ventilation pipes. Through the set fixing component, the position of the activated carbon filter screen can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter screen, and no tools are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of the present utility model;

[0032] Figure 2 is the structural schematic diagram of the preparation barrel area of the present utility model;

[0033] Figure 3 is the cross-sectional structural schematic diagram of the feeding box of the present utility model;

[0034] Figure 4 is the structural schematic diagram of the ventilation pipe area of the present utility model;

[0035] Figure 5 It is a schematic cross-sectional structure diagram of the activated carbon filter net of the present utility model;

[0036] Figure 6 It is a schematic cross-sectional structure diagram of the ventilation pipe of the present utility model.

[0037] The markings in the figure are shown as:

[0038] 1. Preparation barrel; 2. First motor; 3. Stirring shaft; 4. Heating cavity; 5. Heating wire; 6. Ventilation pipe; 7. Activated carbon filter net; 8. Negative pressure fan; 9. Feed pipe; 10. Feed box; 11. First impurity filter net; 12. Impurity collection box; 13. Rotating column; 14. Sliding groove; 15. L-shaped rod; 16. Spring; 17. Second motor; 18. Discharge port; 19. Second impurity filter net. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, rather than intending to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0042] It should be noted that in the description of this application, the orientation or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description. Without contrary instructions, these directional terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of this application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0043] It should be noted that in this application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples. Embodiment 1

[0044] Please refer to Figure 1 - Figure 6 As shown, this embodiment provides a continuous esterification preparation device based on tributyl acetylcitrate, including:

[0045] Prepare a preparation barrel 1. A first motor 2 is fixedly installed at the top of the preparation barrel 1. The output shaft of the first motor 2 penetrates through the preparation barrel 1 and extends into the inner cavity of the preparation barrel 1 and is fixedly installed with a stirring shaft 3. A heating cavity 4 is opened on the inner wall of the preparation barrel 1. A heating wire 5 is fixedly installed in the heating cavity 4. Two ventilation pipes 6 are fixedly installed at the top of the preparation barrel 1. An activated carbon filter net 7 is inserted and installed at the top of the ventilation pipe 6. A negative pressure fan 8 is fixedly installed in one of the ventilation pipes 6;

[0046] Two fixing components are respectively located in the two ventilation pipes 6 and are respectively used to fix the positions of the two activated carbon filter nets 7;

[0047] A feed pipe 9 is fixedly installed at the top of the preparation barrel 1, and a feed box 10 is fixedly installed at the top of the feed pipe 9. An impurity filter net 11 is rotatably installed in the feed box 10. One end of the impurity filter net 11 penetrates through the feed box 10 and extends to the outside. A side of the feed box 10 and below the impurity filter net 11 is fixedly installed with an impurity collection box 12. A rotating column 13 is rotatably installed in the feed box 10 and below the impurity filter net 11. One side of the rotating column 13 contacts the bottom of the impurity filter net 11. A side of the feed box 10 close to the impurity collection box 12 is fixedly installed with an impurity filter net 19;

[0048] A driving component is located on the feed box 10 and is used to drive the rotating column 13 to rotate.

[0049] Among them, when feeding raw materials, first pour the raw materials into the feed box 10. Then the raw materials fall into the feed pipe 9 through the filtration of the impurity filter net 11. By setting the driving component, the rotating column 13 can be driven to rotate. The rotating column 13 will knock on the bottom of the impurity filter net 11, so that the impurity filter net 11 will rotate upward in the feed box 10. Subsequently, under the action of gravity, the impurity filter net 11 rotates downward, achieving the effect of vibrating the impurity filter net 11. Under the action of the inclined setting of the impurity filter net 11, the impurities on the impurity filter net 11 can slowly slide towards the impurity collection box 12, and the blockage of the impurity filter net 11 can be avoided. The water contained in the impurities in the impurity collection box 12 will flow through the inclined bottom of the impurity collection box 12 to the impurity filter net 19, and finally enter the feed box 10 through the impurity filter net 19. The raw materials then enter the feed pipe 9 through the feed box 10, and finally the raw materials in the feed pipe 9 enter the preparation barrel 1, achieving the effect of filtering and screening the raw materials, and the situation that the raw materials contain impurities will not occur;

[0050] When it is necessary to stir the raw materials, first start the first motor 2. The first motor 2 is powered on and drives the stirring shaft 3 to rotate. At this time, the raw materials in the preparation barrel 1 can be stirred. When the temperature in the preparation barrel 1 is relatively low, the heating wire 5 can be started to heat the raw materials in the preparation barrel 1. When the temperature in the preparation barrel 1 is relatively high, turn off the heating wire 5 and start the negative pressure fan 8. The negative pressure fan 8 will discharge the hot air in the preparation barrel 1 to the outside through the activated carbon filter screen 7 at the top. At the same time, fresh air from the outside will enter the preparation barrel 1 through another activated carbon filter screen 7, achieving the effect of reducing the temperature in the preparation barrel 1. And the two activated carbon filter screens 7 can purify the gas. The activated carbon filter screen 7 can prevent harmful gases from being inhaled by the human body and at the same time prevent dust from the outside from entering the preparation barrel 1. When the preparation is completed, open the valve on the discharge port 18, and the raw materials are discharged to the outside through the discharge port 18. The inner cavity of the preparation barrel 1 is funnel-shaped, ensuring that all the raw materials can be discharged to the outside through the discharge port 18;

[0051] When it is necessary to disassemble and replace one of the activated carbon filter screens 7, through the provided fixing component, the activated carbon filter screen 7 can be pulled upward. Subsequently, place the new activated carbon filter screen 7 above one of the ventilation pipes 6. Through the provided fixing component, the position of the activated carbon filter screen 7 can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter screen 7, and no tools are required.

[0052] In this embodiment, the fixing component includes:

[0053] A sliding groove 14 is opened in the ventilation pipe 6. Two L-shaped rods 15 are slidably installed in the sliding groove 14. A plurality of springs 16 are fixedly installed on the sides of the two L-shaped rods 15 close to each other. The ends of the two L-shaped rods 15 away from each other both penetrate through the sliding groove 14 and extend into the activated carbon filter screen 7. The L-shaped rods 15 are in plug-in fit with the activated carbon filter screen 7, and one end of the L-shaped rod 15 penetrates through the sliding groove 14 and extends to the outside;

[0054] Among them, when feeding the raw materials, first pour the raw materials into the feeding box 10. Then, the raw materials pass through the filtration of the impurity filter screen 11 and fall into the feeding pipe 9. At the same time, start the second motor 17. The second motor 17 is powered on and drives the rotating column 13 to rotate. The rotating column 13 will knock on the bottom of the impurity filter screen 11, causing the impurity filter screen 11 to rotate upward in the feeding box 10. Subsequently, under the action of gravity, the impurity filter screen 11 rotates downward, achieving the effect of vibrating the impurity filter screen 11. Under the action of the inclined setting of the impurity filter screen 11, the impurities on the impurity filter screen 11 can slowly slide towards the impurity collection box 12, and the blockage of the impurity filter screen 11 can be avoided. The water contained in the impurities in the impurity collection box 12 will flow towards the impurity filter screen 19 through the inclined bottom of the impurity collection box 12, and finally enter the feeding box 10 through the impurity filter screen 19. The raw materials then enter the feeding pipe 9 through the feeding box 10, and finally the raw materials in the feeding pipe 9 enter the preparation barrel 1, achieving the effect of filtering and screening the raw materials, and the situation where the raw materials contain impurities will not occur.

[0055] In this embodiment, the driving assembly includes:

[0056] The second motor 17 is fixedly installed on one side of the feeding box 10, and the second motor 17 is located on one side of the rotating column 13. The output shaft of the second motor 17 penetrates the feeding box 10 and is coaxially connected to the rotating column 13;

[0057] Among them, when one of the activated carbon filter screens 7 needs to be disassembled and replaced, first pull two of the L-shaped rods 15 to make them approach each other. At the same time, several springs 16 are compressed and contracted. When both L-shaped rods 15 are disengaged from the activated carbon filter screen 7, the activated carbon filter screen 7 can be pulled upward. Subsequently, place a new activated carbon filter screen 7 above one of the ventilation pipes 6. Then release the two L-shaped rods 15. Under the action of the rebounding force of several springs 16, the two L-shaped rods 15 slide and move away from each other. Subsequently, both L-shaped rods 15 are inserted into the activated carbon filter screen 7, and the position of the activated carbon filter screen 7 can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter screen 7 without the need to use tools. Embodiment 2

[0058] This embodiment provides a continuous esterification preparation device based on tributyl acetylcitrate. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0059] In this embodiment, the output shaft of the second motor 17 is rotatably connected to the feeding box 10, and the stirring shaft 3 and the output shafts of the first motor 2 are both rotatably connected to the preparation barrel 1.

[0060] Among them, it is ensured that the output shaft of the second motor 17 can rotate within the feeding box 10, and it is guaranteed that both the stirring shaft 3 and the output shaft of the first motor 2 can rotate on the preparation barrel 1. Embodiment 3

[0061] This embodiment provides a continuous esterification preparation device based on tributyl acetylcitrate. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0062] In this embodiment, the first impurity filter screen 11 is inclined, the bottom of the inner cavity of the preparation barrel 1 is funnel-shaped, the bottom of the impurity collection box 12 is inclined, and the inner wall of the heating chamber 4 is coated with heat insulation paint.

[0063] Among them, under the action of the inclined setting of the first impurity filter screen 11, the impurities on the first impurity filter screen 11 can slowly slide towards the impurity collection box 12. The inner cavity of the preparation barrel 1 is funnel-shaped, ensuring that all the raw materials can be discharged to the outside through the discharge port 18. The coated heat insulation paint can prevent personnel from being scalded. Embodiment 4

[0064] This embodiment provides a continuous esterification preparation device based on tributyl acetylcitrate. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0065] In this embodiment, a discharge port 18 is fixedly installed at the bottom of the preparation barrel 1, and a valve is provided on the discharge port 18.

[0066] Among them, when the preparation is completed, the valve on the discharge port 18 is opened, and the raw materials are discharged to the outside through the discharge port 18.

[0067] Working principle: When raw materials need to be fed, first pour the raw materials into the feeding box 10. Then, the raw materials fall into the feeding pipe 9 through the filtration of the first impurity filter screen 11. At the same time, start the second motor 17. The second motor 17 is powered on and drives the rotating column 13 to rotate. The rotating column 13 will knock on the bottom of the first impurity filter screen 11, causing the first impurity filter screen 11 to rotate upward within the feeding box 10. Subsequently, under the action of gravity, the first impurity filter screen 11 rotates downward, achieving the effect of vibrating the first impurity filter screen 11. Under the action of the inclined setting of the first impurity filter screen 11, the impurities on the first impurity filter screen 11 can slowly slide towards the impurity collection box 12, and the blockage of the first impurity filter screen 11 can be avoided. The moisture contained in the impurities in the impurity collection box 12 will flow towards the second impurity filter screen 19 through the inclined bottom of the impurity collection box 12, and finally enter the feeding box 10 through the second impurity filter screen 19. The raw materials then enter the feeding pipe 9 through the feeding box 10, and finally the raw materials in the feeding pipe 9 enter the preparation barrel 1, achieving the effect of filtering and screening the raw materials, and the situation where the raw materials contain impurities will not occur;

[0068] When it is necessary to stir the raw materials, first start the first motor 2. The first motor 2 is powered on and operates to drive the stirring shaft 3 to rotate. At this time, the raw materials in the preparation barrel 1 can be stirred. When the temperature in the preparation barrel 1 is relatively low, the heating wire 5 can be started to heat the raw materials in the preparation barrel 1. When the temperature in the preparation barrel 1 is relatively high, the heating wire 5 is turned off and the negative pressure fan 8 is started. The negative pressure fan 8 will discharge the hot air in the preparation barrel 1 to the outside through the activated carbon filter screen 7 at the top. At the same time, fresh air from the outside will enter the preparation barrel 1 from the other activated carbon filter screen 7, achieving the effect of reducing the temperature in the preparation barrel 1. And the two activated carbon filter screens 7 can purify the gas. The activated carbon filter screen 7 can prevent harmful gases from being inhaled by the human body, and at the same time can prevent dust from the outside from entering the preparation barrel 1. When the preparation is completed, the valve on the discharge port 18 is opened, and the raw materials are discharged to the outside through the discharge port 18. The inner cavity of the preparation barrel 1 is funnel-shaped, ensuring that all the raw materials can be discharged to the outside through the discharge port 18;

[0069] When it is necessary to disassemble and replace one of the activated carbon filter screens 7, first pull two of the L-shaped rods 15 to make them approach each other. At the same time, several springs 16 are compressed and contracted. When both of the L-shaped rods 15 are disengaged from the activated carbon filter screen 7, the activated carbon filter screen 7 can be pulled upward. Subsequently, a new activated carbon filter screen 7 is placed above one of the ventilation pipes 6. Then, the two L-shaped rods 15 are released. Under the action of the elastic force of several springs 16, the two L-shaped rods 15 slide and move away from each other. Subsequently, both of the L-shaped rods 15 are inserted into the activated carbon filter screen 7, and the position of the activated carbon filter screen 7 can be fixed, achieving the effect of facilitating the installation and disassembly of the activated carbon filter screen 7, and no tools are required.

[0070] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A continuous esterification preparation device based on tributyl acetyl citrate, characterized in that, Including: A preparation barrel (1), on the top of the preparation barrel (1), a first motor (2) is fixedly installed. The output shaft of the first motor (2) penetrates through the preparation barrel (1) and extends into the inner cavity of the preparation barrel (1), and a stirring shaft (3) is fixedly installed. A heating cavity (4) is formed on the inner wall of the preparation barrel (1), and a heating wire (5) is fixedly installed in the heating cavity (4). Two ventilation pipes (6) are fixedly installed on the top of the preparation barrel (1). An activated carbon filter net (7) is inserted and installed at the top of the ventilation pipe (6). A negative pressure fan (8) is fixedly installed in one of the ventilation pipes (6); Two fixing components, which are respectively located in the two ventilation pipes (6) and are respectively used for fixing the positions of the two activated carbon filter nets (7); A feed pipe (9), the feed pipe (9) is fixedly installed on the top of the preparation barrel (1), and a feed box (10) is fixedly installed at the top of the feed pipe (9). An impurity filter net one (11) is rotatably installed in the feed box (10). One end of the impurity filter net one (11) penetrates through the feed box (10) and extends to the outside. On one side of the feed box (10) and below the impurity filter net one (11), an impurity collection box (12) is fixedly installed. A rotating column (13) is rotatably installed in the feed box (10) and below the impurity filter net one (11). One side of the rotating column (13) is in contact with the bottom of the impurity filter net one (11). An impurity filter net two (19) is fixedly installed on one side of the feed box (10) close to the impurity collection box (12); A driving component, which is located on the feed box (10) and is used for driving the rotating column (13) to rotate.

2. The continuous esterification preparation device based on tributyl acetylcitrate according to claim 1, characterized in that, The fixing component includes: A sliding groove (14), which is formed in the ventilation pipe (6). Two L-shaped rods (15) are slidably installed in the sliding groove (14). A plurality of springs (16) are fixedly installed on the side of the two L-shaped rods (15) close to each other. One end of each of the two L-shaped rods (15) far from each other penetrates through the sliding groove (14) and extends into the activated carbon filter net (7). The L-shaped rod (15) is in plug-in fit with the activated carbon filter net (7), and one end of the L-shaped rod (15) penetrates through the sliding groove (14) and extends to the outside.

3. The continuous esterification preparation device based on tributyl acetylcitrate according to claim 2, characterized in that, The driving component includes: A second motor (17), the second motor (17) is fixedly installed on one side of the feed box (10) and is located on one side of the rotating column (13). The output shaft of the second motor (17) penetrates through the feed box (10) and is coaxially connected to the rotating column (13).

4. A continuous esterification preparation device based on tributyl acetyl citrate according to claim 3, characterized in that, The output shaft of the second motor (17) is rotatably connected to the feed box (10). The stirring shaft (3) and the output shaft of the first motor (2) are both rotatably connected to the preparation barrel (1).

5. A continuous esterification preparation device based on tributyl acetylcitrate according to claim 1, characterized in that, The impurity filter net one (11) is inclined. The bottom of the inner cavity of the preparation barrel (1) is funnel-shaped. The bottom of the impurity collection box (12) is inclined.

6. The continuous esterification preparation device based on tributyl acetylcitrate according to claim 1, characterized in that, The inner wall of the heating cavity (4) is coated with heat insulation paint.

7. A continuous esterification preparation device based on tributyl acetyl citrate according to claim 1, characterized in that, The bottom of the preparation barrel (1) is fixedly provided with a discharge port (18), and a valve is arranged on the discharge port (18).

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