Hydrogenated rosin glyceride preparation device

Abstract

The utility model discloses a hydrogenated rosin glyceride preparation device, which relates to the technical field of organic chemistry, and comprises an esterification reaction kettle main body, a temperature adjusting stirring unit, a liquid inlet pipe, a jacket, a liquid discharge pipe and a motor, the jacket is arranged on the outer side wall of the esterification reaction kettle main body, and the motor is arranged at the top of the esterification reaction kettle main body. The temperature adjusting and stirring unit comprises a stirring rod, the stirring rod is connected with the output end of the motor, the liquid inlet pipe is connected with the end, close to the motor, of the stirring rod, the liquid discharging pipe is connected with the end, away from the motor, of the stirring rod, and the temperature adjusting and stirring unit can adjust the temperature of the stirring rod and stir materials at the same time. Therefore, the problem that the production efficiency of the hydrogenated rosin glyceride is low due to the fact that the heat transfer speed of the jacket is low when the existing esterification reaction kettle is used for producing the hydrogenated rosin glyceride is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic chemical industry, and particularly relates to a device for preparing hydrogenated rosin glycerol ester. Background Art

[0002] The hydrogenated rosin generated by hydrogenation of rosin is esterified with glycerol to obtain hydrogenated rosin glycerol ester. Hydrogenated rosin glycerol ester is used as an aging-resistant and non-corrosive tackifying resin for solvent-based pressure-sensitive adhesives, solvent-based all-purpose adhesives, hot melt adhesives, etc. When hydrogenated rosin and glycerol are esterified in an esterification reactor, a suitable temperature is generally required. Existing esterification reactors generally use jackets to control the esterification reactor to heat up or cool down. This method has a slow energy transfer speed, resulting in low production efficiency of hydrogenated rosin and glycerol.

[0003] Therefore, a device for preparing hydrogenated rosin glycerol ester is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogenated rosin glycerol ester preparation device, thereby solving the problem that the existing esterification reaction kettle has low production efficiency of hydrogenated rosin glycerol ester due to the slow heat transfer speed of the jacket when producing hydrogenated rosin glycerol ester. The specific technical scheme is as follows:

[0005] A device for preparing hydrogenated rosin glycerol ester comprises an esterification reaction kettle body, a temperature-adjusting and stirring unit, a liquid inlet pipe, a jacket, a liquid discharge pipe and a motor, wherein the jacket is mounted on the outer side wall of the esterification reaction kettle body, a motor is mounted on the top of the esterification reaction kettle body, the temperature-adjusting and stirring unit comprises a stirring rod, the stirring rod is connected to the output end of the motor, the liquid inlet pipe is connected to one end of the stirring rod close to the motor, the liquid discharge pipe is connected to one end of the stirring rod away from the motor, and the temperature-adjusting and stirring unit can adjust the temperature of the stirring rod while stirring the material.

[0006] Preferably, the temperature control stirring unit also includes a support rod and a sleeve, the stirring rod includes a first straight rod and a second straight rod alternately connected, the first straight rod is provided with a first channel along the axis, the second straight rod is a solid rod, the sleeve is mounted on the first straight rod near one end of the motor through a mechanical seal, and is located outside the esterification reaction kettle body, a cavity is provided in the sleeve, the liquid inlet pipe is connected to the sleeve, and the liquid inlet pipe is communicated with the cavity, a through hole is provided on the side wall of the first straight rod near one end of the motor, the through hole enables the first channel to be communicated with the cavity, the support rod array is installed on the stirring rod, the support rod is located in the esterification reaction kettle body, the support rod is provided with a second channel along the axis, both ends of the second channel are respectively communicated with different first channels, the end of the stirring rod away from the motor is the first straight rod, and is rotatably connected to the discharge pipe through a mechanical seal.

[0007] Preferably, the support rod is V-shaped, and its opening faces the stirring rod.

[0008] Preferably, a plurality of heat-conducting rods are installed on the support rod along the circumferential positive line array, and the heat-conducting rods penetrate the support rod and the second channel.

[0009] Preferably, the support rod and the heat-conducting rod are made of an alloy material with a large thermal conductivity.

[0010] Preferably, the support rod corners are rounded to reduce the resistance to liquid flow.

[0011] Preferably, the outer side wall of the liquid inlet pipe is covered with a layer of heat-insulating material.

[0012] Compared with the existing technology, the utility model has the following beneficial effects:

[0013] 1. The utility model inputs a heat-conducting medium into the stirring rod to adjust the temperature from the inside of the esterification reaction kettle, and cooperates with the jacket to increase or decrease the temperature inside the esterification reaction kettle, thereby improving the temperature adjustment speed inside the esterification reaction kettle, thereby improving the production efficiency of hydrogenated rosin glycerol ester and reducing time cost.

[0014] 2. The utility model has heat-conducting rods installed in an array along the axis of the support rod, and the heat-conducting rods penetrate the support rod and the second channel, so the heat-conducting rods can increase the heat exchange area, thereby further improving the heat conduction efficiency and the production efficiency of hydrogenated rosin glycerol ester. At the same time, the heat-conducting rods can also improve the stirring effect of the stirring rod on the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will briefly introduce the drawings required for the description of the embodiment. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the internal structure of the utility model;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle.

[0020] Description of main reference numerals:

[0021] 1. Esterification reaction kettle body; 2. Liquid inlet pipe; 3. Liquid discharge pipe; 4. Jacket; 5. Motor; 6. Stirring rod; 601. First straight rod; 602. Second straight rod; 7. Support rod; 8. Sleeve; 9. First channel; 10. Second channel; 11. Cavity; 12. Through hole; 13. Heat conducting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] refer to Figures 1 to 4 , a motor 5 is installed on the top of the esterification reactor body 1 by bolts, and the output end of the motor 5 faces vertically downward. The output end of the motor 5 is connected to the stirring rod 6 through a coupling, and the stirring rod 6 passes through the esterification reactor body 1 and enters the interior of the esterification reactor body 1. The stirring rod 6 is formed by the first straight rod 601 and the second straight rod 602 being alternately connected by flanges. The sleeve 8 is sleeved on the first straight rod 601 through a mechanical seal. The sleeve 8 is connected to one end of the liquid inlet pipe 2. A through hole 12 is opened on the side wall of the first straight rod 601. The through hole 12 makes the cavity 11 communicate with the first channel 9, so that the heat-conducting medium can enter the stirring rod 6 when the stirring rod 6 rotates. The drain pipe 3 is connected to the end of the stirring rod 6 away from the motor 5 through a mechanical seal, and is used to discharge the heat-conducting medium. Through the mechanical seal, the heat-conducting medium can be prevented from entering the interior of the esterification reactor body 1 to contaminate the hydrogenated rosin glycerol ester. The heat-conducting medium here can be selected from heat-conducting oil.

[0024] The support rods 7 are installed on the stirring rod 6 by welding a circular array to form a group of support rods 7. The stirring rod 6 is equipped with multiple groups of support rods 7 along the axis array. The support rods 7 are located in the esterification reactor body 1. The support rods 7 are provided with a second channel 10 along the axis. The two ends of the second channel 10 are respectively connected to different first channels 9. Therefore, the heat transfer medium can enter the second channel 10, and the support rods 7 can increase the heat exchange area with the inside of the esterification reactor body 1, improve the heat exchange efficiency, and thus improve the production efficiency of the hydrogenated rosin glycerol ester preparation device. The support rods 7 are V-shaped, and the opening is facing the stirring rod 6, so that the straight part of the support rods 7 is tilted downward as a whole, so as to reduce the residual heat transfer medium in the second channel 10 when the liquid inlet pipe 2 stops supplying the heat transfer medium.

[0025] A plurality of heat-conducting rods 13 are installed on the support rod 7 in an array along the axis, and the heat-conducting rods 13 penetrate the support rod 7 and the second channel 10. The heat-conducting rods 13 can be in direct contact with the heat-conducting medium, which not only enhances the stirring effect of the stirring rod 6, but also increases the heat exchange area with the inside of the esterification reactor body 1, further improving the heat exchange efficiency. The heat-conducting rods 13 and the support rods 7 are made of alloy materials with high thermal conductivity such as aluminum alloy and copper alloy, which improves the thermal conductivity efficiency while ensuring the strength. The corners of the support rod 7 are rounded to reduce the resistance to liquid flow, which can reduce the requirements for the pressure pump. The outer wall of the liquid inlet pipe 2 is covered with a layer of insulation material to reduce energy loss and reduce production costs.

[0026] When the temperature adjustment stops, the liquid inlet pipe 2 will not transport the heat transfer medium into the stirring rod 6, and the heat transfer medium in the first channel 9 and the second channel 10 will completely leave the stirring rod 6, so that the stirring rod 6 can quickly stop affecting the temperature in the esterification reactor body 1.

[0027] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for preparing hydrogenated rosin glycerol ester, characterized in that: The invention comprises an esterification reaction kettle body (1), a temperature-adjusting stirring unit, a liquid inlet pipe (2), a jacket (4), a liquid discharge pipe (3) and a motor (5), wherein the jacket (4) is mounted on the outer side wall of the esterification reaction kettle body (1), a motor (5) is mounted on the top of the esterification reaction kettle body (1), the temperature-adjusting stirring unit comprises a stirring rod (6), the stirring rod (6) is connected to the output end of the motor (5), the liquid inlet pipe (2) is connected to one end of the stirring rod (6) close to the motor (5), the liquid discharge pipe (3) is connected to one end of the stirring rod (6) away from the motor (5), and the temperature-adjusting stirring unit can adjust the temperature of the stirring rod (6) and stir the material at the same time.

2. The device for preparing hydrogenated rosin glycerol ester according to claim 1, characterized in that: The temperature regulating stirring unit further comprises a support rod (7) and a sleeve (8); the stirring rod (6) comprises a first straight rod (601) and a second straight rod (602) which are alternately connected; the first straight rod (601) is provided with a first channel (9) along the axis; the second straight rod (602) is a solid rod; the sleeve (8) is mounted on the first straight rod (601) near one end of the motor (5) through a mechanical seal and is located outside the esterification reaction kettle body (1); a cavity (11) is provided in the sleeve (8); the liquid inlet pipe (2) is connected to the sleeve (8), and the liquid inlet pipe (2) is in communication with the cavity (11); A through hole (12) is provided on the side wall of the first straight rod (601) near one end of the motor (5), and the through hole (12) enables the first channel (9) to communicate with the cavity (11). The support rod (7) array is installed on the stirring rod (6), and the support rod (7) is located in the esterification reaction kettle body (1). The support rod (7) has a second channel (10) along the axis, and the two ends of the second channel (10) are respectively connected to different first channels (9). The end of the stirring rod (6) away from the motor (5) is the first straight rod (601), and is rotatably connected to the discharge pipe (3) through a mechanical seal.

3. The device for preparing hydrogenated rosin glycerol ester according to claim 2, characterized in that: The support rod (7) is V-shaped, and its opening faces the stirring rod (6).

4. The device for preparing hydrogenated rosin glycerol ester according to claim 2, characterized in that: A plurality of heat-conducting rods (13) are installed on the support rod (7) along the circumferential positive line array, and the heat-conducting rods (13) penetrate the support rod (7) and the second channel (10).

5. The device for preparing hydrogenated rosin glycerol ester according to claim 4, characterized in that: The support rod (7) and the heat-conducting rod (13) are made of an alloy material with a large thermal conductivity coefficient.

6. The device for preparing hydrogenated rosin glycerol ester according to claim 3, characterized in that: The corners of the support rod (7) are rounded to reduce the resistance to liquid flow.

7. The device for preparing hydrogenated rosin glycerol ester according to claim 1, characterized in that: The outer side wall of the liquid inlet pipe (2) is covered with a layer of heat-insulating material.

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