Esterification reaction device

Abstract

The utility model discloses an esterification reaction device, which relates to the technical field of esterification reaction devices, and comprises an esterification bin, the inner wall of the esterification bin is fixedly connected with a mounting plate, the inside of the mounting plate is fixedly connected with a heating pipe, the pipe walls at the two ends of the heating pipe both penetrate through the corresponding side walls of the esterification bin and are fixedly connected with a temperature control device, and the temperature control device is connected with the esterification bin. A driving bin is fixedly connected to the side wall of the esterification bin, a motor is fixedly connected to the interior of the driving bin, a connecting rod is fixedly connected to the output end of the motor, a driving gear is fixedly connected to the rod wall of one end of the connecting rod, and teeth at one end of the driving gear are in engaged connection with a first driven gear. According to the utility model, the second stirring paddle and the first stirring paddle rotate oppositely through gear meshing, a complex flow field is formed in the esterification bin, uniform mixing of materials can be promoted, the generation purity and quality of ethylene glycol monomethyl ether can be improved, chemical reaction between the materials can be promoted, and the reaction rate can be increased.

Description

Technical Field

[0001] This utility model relates to the technical field of esterification reaction apparatus, and specifically to an esterification reaction apparatus. Background Technology

[0002] Esterification reactors are mainly used to contain mixtures for reaction and provide appropriate temperature and pressure conditions to ensure that the reactants are fully mixed. In terms of materials, the reactors are usually made of stainless steel, enamel, or special alloy materials to ensure that they have good corrosion resistance.

[0003] Existing esterification reactors often encounter problems in the esterification reaction to produce ethylene glycol methyl ether, such as insufficient reaction of raw materials, inability to mix raw materials evenly, and slow reaction rate. This can easily lead to excessive by-products and impurities, affecting the purity and quality of the produced ethylene glycol methyl ether and reducing work efficiency. Utility Model Content

[0004] In view of the problems existing in the above-mentioned esterification reaction apparatus, this utility model is proposed.

[0005] Therefore, the purpose of this invention is to provide an esterification reaction apparatus that solves the problems of insufficient reaction of raw materials, inability to uniformly mix raw materials, and slow reaction rate, which easily generate too many by-products and impurities, affecting the purity and quality of the ethylene glycol methyl ether produced and reducing work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An esterification reaction device includes an esterification chamber, an mounting plate fixedly connected to the inner wall of the esterification chamber, a heating tube fixedly connected inside the mounting plate, both ends of the heating tube penetrating the corresponding side walls of the esterification chamber and fixedly connected to a temperature control device, a drive chamber fixedly connected to the side wall of the esterification chamber, a motor fixedly connected inside the drive chamber, a connecting rod fixedly connected to the output end of the motor, a drive gear fixedly connected to one end of the connecting rod, a first driven gear meshing with one end of the drive gear, a second driven gear meshing with the other end of the drive gear, a stirring sleeve fixedly connected to the side wall of the first driven gear, a first stirring blade fixedly sleeved on the side wall of the stirring sleeve, a stirring rod fixedly connected to the side wall of the second driven gear, a connecting plate fixedly connected to one end of the stirring rod penetrating the side wall of the first driven gear, a second stirring blade fixedly connected to the bottom of the connecting plate, and a feed pipe fixedly connected to one side wall of the esterification chamber.

[0007] Preferably, a cooling pipe is fixedly sleeved on the side wall of the esterification chamber, and a guide plate is fixedly connected to one end of the cooling pipe.

[0008] Preferably, a first sealing sleeve is fixedly fitted onto the inner wall of the esterification chamber, corresponding to the position of the stirring sleeve. A first sliding groove is provided inside the first sealing sleeve, and a first annular slider is slidably connected inside the first sliding groove. A circular fixing plate is fixedly fitted onto the wall of the stirring sleeve, and the side wall of the circular fixing plate is fixedly connected to the inner wall of the first annular slider.

[0009] Preferably, a second sealing sleeve is fixedly connected to the surface of the connecting plate, a second sliding groove is provided inside the second sealing sleeve, a second annular slider is fixedly connected inside the second sliding groove, and the side wall of the second annular slider is fixedly connected to one end wall of the stirring sleeve.

[0010] Furthermore, a discharge pipe is fixedly connected to the bottom of the esterification chamber.

[0011] Preferably, a pressure control device is fixedly connected to the side wall of the esterification chamber, and a pressure relief pipe is fixedly connected to the output end of the pressure control device. One end of the pressure relief pipe is fixedly sleeved with the side wall of the esterification chamber.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. This utility model utilizes a motor that drives a driving gear to rotate via a connecting rod, which meshes with the teeth of a first driven gear and a second driven gear. The first driven gear drives a first stirring paddle to rotate via a stirring sleeve, and the second driven gear drives a second stirring paddle via a stirring rod and a connecting plate. This causes the second stirring paddle and the first stirring paddle to rotate in opposite directions through gear meshing, forming a complex flow field inside the esterification chamber that includes not only axial flow components but also radial flow components. This makes the material flow inside the esterification chamber more thorough and complex, promoting uniform mixing of materials, improving the purity and quality of ethylene glycol methyl ether formation, and helping to promote chemical reactions between materials and increase the reaction rate.

[0014] 2. This utility model utilizes a temperature control device and a pressure control device. The reactant material is fed into the esterification chamber through a feed pipe. The temperature control device adjusts the temperature of the reactant material inside the esterification chamber through a heating pipe, and the pressure control device adjusts the pressure inside the esterification chamber through a pressure relief pipe. The temperature control device and the pressure control device control appropriate conditions such as temperature, pressure and reaction time, so that the reactant material reacts inside the esterification chamber to generate ethylene glycol methyl ether, thereby obtaining a high-quality product and a stable production process.

[0015] 3. In this utility model, the first sealing sleeve is set so that when the stirring sleeve rotates, the first annular slider connected to the circular fixing plate rotates inside the first sealing sleeve. This prevents the air pressure inside the esterification chamber from leaking through the gap between the side wall of the stirring sleeve and the wall of the esterification chamber, thereby controlling the air pressure inside the esterification chamber more precisely. Attached Figure Description

[0016] 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged structural diagram of section A;

[0019] Figure 3 for Figure 1 A three-dimensional structural diagram of the driving gear and the first driven gear;

[0020] Figure 4 for Figure 1 Enlarged structural diagram of section B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Esterification chamber; 2. Mounting plate; 3. Heating tube; 4. Temperature control device; 5. Drive chamber; 6. Motor; 7. Connecting rod; 8. Drive gear; 9. First driven gear; 10. Second driven gear; 11. Stirring sleeve; 12. First stirring paddle; 13. Stirring rod; 14. Connecting plate; 15. Second stirring paddle; 16. Feed pipe; 17. Cooling pipe; 18. Guide plate; 19. First sealing sleeve; 20. First chute; 21. First annular slider; 22. Circular fixing plate; 23. Second sealing sleeve; 24. Second chute; 25. Second annular slider; 26. Discharge pipe; 27. Pressure control device; 28. Pressure relief pipe. Detailed Implementation

[0023] 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.

[0024] This utility model discloses an esterification reaction apparatus.

[0025] This utility model provides, for example Figure 1-4An esterification reaction apparatus is shown, comprising an esterification chamber 1, an mounting plate 2 fixedly connected to the inner wall of the esterification chamber 1, a drive chamber 5 fixedly connected to the side wall of the esterification chamber 1, a motor 6 fixedly connected inside the drive chamber 5, a connecting rod 7 fixedly connected to the output end of the motor 6, a drive gear 8 fixedly connected to one end of the connecting rod 7, a first driven gear 9 meshing with one end of the drive gear 8, a second driven gear 10 meshing with the other end of the drive gear 8, a stirring sleeve 11 fixedly connected to the side wall of the first driven gear 9, a first stirring blade 12 fixedly sleeved on the side wall of the stirring sleeve 11, a stirring rod 13 fixedly connected to the side wall of the second driven gear 10, one end of the stirring rod 13 penetrating the side wall of the first driven gear 9 and fixedly connected to a connecting plate 14, a second stirring blade 15 fixedly connected to the bottom of the connecting plate 14, a feed pipe 16 fixedly connected to one side wall of the esterification chamber 1, and a discharge pipe 26 fixedly sleeved at the bottom of the esterification chamber 1.

[0026] The motor 6 drives the drive gear 8 to rotate via the connecting rod 7, which meshes with the teeth of the first driven gear 9 and the second driven gear 10. The first driven gear 9 drives the first stirring blade 12 to rotate via the stirring sleeve 11, and the second driven gear 10 drives the second stirring blade 15 via the stirring rod 13 and the connecting plate 14. The second stirring blade 15 and the first stirring blade rotate in opposite directions through gear meshing, forming a complex flow field inside the esterification chamber 1. This field includes not only axial flow components but also radial flow components, making the material flow inside the esterification chamber 1 more thorough and complex. This promotes uniform mixing of the material, improves the purity and quality of ethylene glycol methyl ether, and helps to promote chemical reactions between materials, increasing the reaction rate.

[0027] In order to obtain high-quality products and a stable production process, such as Figure 1 As shown, a heating tube 3 is fixedly connected inside the mounting plate 2. Both ends of the heating tube 3 penetrate the corresponding side wall of the esterification chamber 1 and are fixedly connected to a temperature control device 4. A pressure control device 27 is fixedly connected to the side wall of the esterification chamber 1. A pressure relief pipe 28 is fixedly connected to the output end of the pressure control device 27. One end of the pressure relief pipe 28 is fixedly sleeved with the side wall of the esterification chamber 1.

[0028] By using a temperature control device 4 and a pressure control device 27, the reaction material is fed into the esterification chamber 1 through the feed pipe 16. The temperature control device 4 adjusts the temperature of the reaction material inside the esterification chamber 1 through the heating pipe 3, and the pressure control device 27 adjusts the pressure inside the esterification chamber 1 through the pressure relief pipe 28. The temperature control device 4 and the pressure control device 27 control appropriate conditions such as temperature, pressure and reaction time, so that the reaction material reacts inside the esterification chamber 1 to generate ethylene glycol methyl ether, thereby obtaining a high-quality product and a stable production process.

[0029] To prevent liquid from flowing back through cooling pipe 17, such as Figure 1 As shown, a cooling pipe 17 is fixedly sleeved on the side wall of the esterification chamber 1, and a guide plate 18 is fixedly connected to one end of the cooling pipe 17.

[0030] After the reaction is complete, ethylene glycol methyl ether is usually separated from the reaction materials by distillation or other methods. During the separation process, the liquid enters the interior of the cooling pipe 17 through the guide plate 18 for cooling to prevent the liquid from flowing back through the cooling pipe 17.

[0031] To more precisely control the air pressure inside esterification chamber 1, such as Figure 1 and 2 As shown, the inner wall of the esterification chamber 1 is fixedly fitted with a first sealing sleeve 19 corresponding to the position of the stirring sleeve 11. The first sealing sleeve 19 has a first sliding groove 20 inside, and a first annular slider 21 is slidably connected inside the first sliding groove 20. A circular fixing plate 22 is fixedly fitted to the wall of the stirring sleeve 11, and the side wall of the circular fixing plate 22 is fixedly connected to the inner wall of the first annular slider 21.

[0032] By using the first sealing sleeve 19, the stirring sleeve 11 rotates inside the first annular slider 21 connected to the circular fixing plate 22, preventing the air pressure inside the esterification chamber 1 from leaking through the gap between the side wall of the stirring sleeve 11 and the chamber wall of the esterification chamber 1, thereby controlling the air pressure inside the esterification chamber 1 more precisely.

[0033] Finally, to seal one end of the stirring sleeve 11, such as Figure 1 and 4 As shown, a second sealing sleeve 23 is fixedly connected to the surface of the connecting plate 14. A second sliding groove 24 is provided inside the second sealing sleeve 23. A second annular slider 25 is fixedly connected inside the second sliding groove 24. The side wall of the second annular slider 25 is fixedly connected to one end of the stirring sleeve 11.

[0034] By using the second sealing sleeve 23, one end of the stirring sleeve 11 is rotated inside the second sealing sleeve 23 via the second annular slider 25, thereby achieving a sealing effect on the stirring sleeve 11.

[0035] 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 esterification reaction apparatus, comprising an esterification chamber (1), characterized in that: An mounting plate (2) is fixedly connected to the inner wall of the esterification chamber (1). A heating tube (3) is fixedly connected inside the mounting plate (2). Both ends of the heating tube (3) penetrate the corresponding side wall of the esterification chamber (1) and are fixedly connected to a temperature control device (4). A drive chamber (5) is fixedly connected to the side wall of the esterification chamber (1). A motor (6) is fixedly connected inside the drive chamber (5). A connecting rod (7) is fixedly connected to the output end of the motor (6). A drive gear (8) is fixedly connected to one end of the connecting rod (7). A first driven gear (9) is meshed with the teeth of one end of the drive gear (8). The other end of the driving gear (8) is connected to a second driven gear (10) with teeth meshing. The side wall of the first driven gear (9) is fixedly connected to a stirring sleeve (11). The side wall of the stirring sleeve (11) is fixedly sleeved with a first stirring blade (12). The side wall of the second driven gear (10) is fixedly connected to a stirring rod (13). One end of the stirring rod (13) penetrates the side wall of the first driven gear (9) and is fixedly connected to a connecting plate (14). The bottom of the connecting plate (14) is fixedly connected to a second stirring blade (15). One side wall of the esterification chamber (1) is fixedly connected to a feed pipe (16).

2. The esterification reaction apparatus according to claim 1, characterized in that: The side wall of the esterification chamber (1) is fixedly fitted with a cooling pipe (17), and a guide plate (18) is fixedly connected to one end of the cooling pipe (17).

3. The esterification reaction apparatus according to claim 1, characterized in that: The inner wall of the esterification chamber (1) is fixedly fitted with a first sealing sleeve (19) corresponding to the position of the stirring sleeve (11). The first sealing sleeve (19) has a first sliding groove (20) inside. The first sliding groove (20) is slidably connected to a first annular slider (21). The wall of the stirring sleeve (11) is fixedly fitted with a circular fixing plate (22). The side wall of the circular fixing plate (22) is fixedly connected to the inner wall of the first annular slider (21).

4. The esterification reaction apparatus according to claim 1, characterized in that: The surface of the connecting plate (14) is fixedly connected to a second sealing sleeve (23), and a second sliding groove (24) is provided inside the second sealing sleeve (23). A second annular slider (25) is fixedly connected inside the second sliding groove (24), and the side wall of the second annular slider (25) is fixedly connected to one end of the stirring sleeve (11).

5. The esterification reaction apparatus according to claim 1, characterized in that: The bottom of the esterification chamber (1) is fixedly fitted with a discharge pipe (26).

6. The esterification reaction apparatus according to claim 1, characterized in that: A pressure control device (27) is fixedly connected to the side wall of the esterification chamber (1), and a pressure relief pipe (28) is fixedly connected to the output end of the pressure control device (27). One end of the pressure relief pipe (28) is fixedly sleeved with the side wall of the esterification chamber (1).

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