Esterification reaction kettle

Abstract

The esterification reaction kettle comprises a kettle body, a motor, a coupler, a stirrer, bottom feet, a solid material inlet, a liquid material inlet and a discharging port, the bottom feet are installed at the bottom of the kettle body, the motor and the coupler are installed at the top of the kettle body, the stirrer is installed in the kettle body, the stirrer is in transmission connection with the motor through the coupler, and the discharging port is connected with the motor through the coupler. The solid material inlet and the liquid material inlet are formed in the top of the kettle body, an inclined sampling hole is formed in the side wall of the kettle body, a sampler is inserted into the sampling hole, a sampling groove is formed in the end, inserted into the kettle body, of the sampler, and a pulling block is arranged at the end, located outside the kettle body, of the sampler. Sealing cushions are arranged on the upper side and the lower side, close to the sampling hole, of the inner wall of the kettle body; the sampler is arranged on the side wall of the kettle body, materials in the middle of the inner cavity of the kettle body can be taken out without shutdown so as to detect the reaction condition in the kettle body, and after the sampler is pulled out, the sampling hole can be automatically closed for a short time so as to prevent the materials in the kettle body from overflowing.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettle structures, in particular to an esterification reaction kettle. Background Art

[0002] Esterification is a type of organic chemical reaction, which is the reaction of alcohol with carboxylic acid or oxygen-containing inorganic acid to produce ester and water. It is divided into three categories: the reaction of carboxylic acid with alcohol, the reaction of inorganic oxygen-containing acid with alcohol, and the reaction of inorganic strong acid with alcohol. The esterification reaction of carboxylic acid with alcohol is reversible, and the reaction is generally very slow, so concentrated sulfuric acid is often used as a catalyst. The reaction of polycarboxylic acid with alcohol can produce a variety of esters. The reaction of inorganic strong acid with alcohol is generally faster. A typical esterification reaction is the reaction of ethanol and acetic acid to produce ethyl acetate with an aromatic smell, which is the raw material for making dyes and medicines. Esterification reactions are widely used in organic synthesis and other fields.

[0003] Due to the agitator structure of the existing esterification reactor, it is not convenient to sample the materials in the reactor during the stirring process. The stirring must be stopped and the sample must be inserted from the reactor inlet, which requires the sampler to be long. At the same time, stopping the sampler will affect the production effect. In view of the above problems, the utility model provides a solution. Utility Model Content

[0004] The utility model aims to provide an esterification reaction kettle.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An esterification reaction kettle comprises a kettle body, a motor, a coupling, an agitator, a foot, a solid material feed, a liquid material inlet and a discharge port, wherein the foot is mounted at the bottom of the kettle body, the motor and the coupling are mounted at the top of the kettle body, the agitator is mounted inside the kettle body, the agitator is connected to the motor through the coupling, the solid material feed and the liquid material inlet are arranged at the top of the kettle body, the discharge port is arranged at the bottom of the kettle body, the side wall of the kettle body is provided with an inclined sampling hole, a sampler is inserted into the sampling hole, a sampling groove is arranged at one end of the sampler inserted into the kettle body, a pull block is arranged at one end of the sampler located outside the kettle body, sealing cushions are arranged on the upper and lower sides of the inner wall of the kettle body near the sampling hole, a sealing ring is installed on the inner wall of the sampling hole, when the sampler is pulled out of the sampling hole, the upper and lower sealing cushions retract and overlap at the sampling hole position to form a sealing structure.

[0007] Furthermore, a spray ring is installed on the inner wall of the upper end of the kettle body, the spray ring is arranged close to the inner wall of the kettle body, a plurality of evenly distributed spray holes are arranged on the lower side of the spray ring, the spray ring is connected to a joint installed outside the kettle body, and the joint is connected to a water source.

[0008] Furthermore, an ultrasonic generator is installed at the bottom of the kettle body. The number of ultrasonic generators is multiple. The ultrasonic generators cause the device to vibrate, accelerating the reaction speed of the materials.

[0009] Furthermore, a jacket is provided outside the kettle body, and a liquid inlet and a liquid outlet are provided on the jacket.

[0010] Furthermore, a conical stirring blade that fits the bottom of the kettle body is provided at the bottom of the stirrer, and a spiral stirring blade is provided on the stirrer above the conical stirring blade.

[0011] In summary, the present utility model has the following beneficial effects: A sampler is provided on the side wall of the kettle body of the present utility model, and the material in the middle of the inner cavity of the kettle body can be taken out without stopping the machine to detect the internal reaction situation. After the sampler is pulled out, the sampling hole can be automatically sealed for a short time to avoid the internal material flowing out along the sampling hole. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present utility model;

[0013] Figure 2 is the installation structural schematic diagram of the sampler;

[0014] Figure 3 is the structural schematic diagram after the sampler is pulled out.

[0015] In the figure, 1. Kettle body; 2. Motor; 3. Coupling; 4. Stirrer; 5. Foot; 6. Solid material inlet; 7. Liquid material inlet; 8. Conical stirring blade; 9. Spiral stirring blade; 10. Discharge port; 11. Jacket; 12. Liquid inlet; 13. Liquid outlet; 14. Spray ring; 15. Joint; 16. Spray hole; 17. Ultrasonic generator; 18. Sampler; 19. Sampling tank; 20. Pulling block; 21. Sealing soft pad; 22. Sealing ring; 23. Sampling hole. Detailed Embodiments

[0016] The following further describes the present utility model in detail with reference to the drawings. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0017] As Figure 1 and Figure 2As shown in the figure, an esterification reactor includes a reactor body 1, a motor 2, a coupling 3, a stirrer 4, feet 5, a solid material feeder 6, a liquid material inlet 7, and a discharge port 10. The feet 5 are installed at the bottom of the reactor body 1. The motor 2 and the coupling 3 are installed at the top of the reactor body 1. The stirrer 4 is installed inside the reactor body 1. The stirrer 4 is drivingly connected to the motor 2 through the coupling 3. The solid material feeder 6 and the liquid material inlet 7 are arranged at the top of the reactor body 1. The discharge port 10 is arranged at the bottom of the reactor body 1. An inclined sampling hole 23 is provided on the side wall of the reactor body 1. A sampler 18 is inserted into the sampling hole 23. One end of the sampler 18 inserted into the reactor body 1 is provided with a sampling groove 19. One end of the sampler 18 located outside the reactor body 1 is provided with a pulling block 20. Sealing soft pads 21 are provided on the upper and lower sides of the inner wall of the reactor body 1 near the sampling hole 23. A sealing ring 22 is installed on the inner wall of the sampling hole 23. As Figure 3 shown, when the sampler 18 is pulled out of the sampling hole 23, the upper and lower sealing soft pads 21 retract and overlap at the position of the sampling hole 23 to form a sealing structure.

[0018] Furthermore, a spray ring 14 is installed on the inner wall at the upper end of the reactor body 1. The spray ring 14 is arranged closely against the inner wall of the reactor body 1. A plurality of evenly distributed spray holes 16 are provided on the lower side of the spray ring 14. The spray ring 14 is communicated with a joint 15 installed outside the reactor body 1. The joint 15 is connected to a water source. Through the structural design of the spray ring 14, the side wall of the reactor body can be flushed, which is convenient for the cleaning work of the reactor after the reaction ends.

[0019] Furthermore, an ultrasonic generator 17 is installed at the bottom of the reactor body 1. The number of the ultrasonic generators 17 is multiple. The ultrasonic generators 17 make the device vibrate and accelerate the reaction speed of the materials.

[0020] Furthermore, a jacket 11 is provided outside the reactor body 1. The jacket 11 is provided with a liquid inlet 12 and a liquid outlet 13. By introducing high-temperature or low-temperature water into the jacket 11, the temperature inside the reactor body 1 can be adjusted.

[0021] Furthermore, a conical stirring blade 8 that fits the bottom of the reactor body 1 is provided at the bottom of the stirrer 4. A spiral stirring blade 9 is provided on the stirrer 4 above the conical stirring blade 8. The spiral stirring blade 9 can form an upward thrust to push the materials from the bottom upwards.

[0022] In the utility model, a sampler is arranged on the side wall of the reactor body, and the materials in the middle of the inner cavity of the reactor body can be taken out without stopping the machine to detect the internal reaction situation. After the sampler is pulled out, the sampling hole can be automatically sealed for a short time to prevent the internal materials from flowing out along the sampling hole. At the same time, an ultrasonic generator is arranged at the bottom of the reactor body to make the materials vibrate and accelerate the reaction speed.

[0023] This specific embodiment is only an interpretation of the present utility model, and it does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. An esterification reaction kettle, comprising a kettle body (1), a motor (2), a coupling (3), an agitator (4), a foot (5), a solid material feed (6), a liquid material inlet (7) and a discharge port (10), wherein the foot (5) is mounted at the bottom of the kettle body (1), the motor (2) and the coupling (3) are mounted at the top of the kettle body (1), the agitator (4) is mounted inside the kettle body (1), the agitator (4) is transmission-connected to the motor (2) via the coupling (3), the solid material feed (6) and the liquid material inlet (7) are arranged at the top of the kettle body (1), and the discharge port (10) is arranged at the bottom of the kettle body (1), characterized in that: The side wall of the kettle body (1) is provided with an inclined sampling hole (23), a sampler (18) is inserted into the sampling hole (23), one end of the sampler (18) inserted into the kettle body (1) is provided with a sampling groove (19), one end of the sampler (18) located outside the kettle body (1) is provided with a pull-out block (20), the upper and lower sides of the inner wall of the kettle body (1) near the sampling hole (23) are provided with sealing cushions (21), the inner wall of the sampling hole (23) is installed with a sealing ring (22), when the sampler (18) is pulled out of the sampling hole (23), the upper and lower sealing cushions (21) are retracted, The sampling hole (23) is overlapped to form a sealing structure.

2. An esterification reaction kettle according to claim 1, characterized in that: A spray ring (14) is installed on the inner wall of the upper end of the kettle body (1). The spray ring (14) is arranged closely to the inner wall of the kettle body (1). A plurality of evenly distributed spray holes (16) are arranged on the lower side of the spray ring (14). The spray ring (14) is connected to a joint (15) installed outside the kettle body (1), and the joint (15) is connected to a water source.

3. An esterification reaction kettle according to claim 2, characterized in that: An ultrasonic generator (17) is installed at the bottom of the kettle body (1), and the number of the ultrasonic generators (17) is multiple.

4. An esterification reaction kettle according to claim 3, characterized in that: The outside of the kettle body (1) is provided with a jacket (11), and the jacket (11) is provided with a liquid inlet (12) and a liquid outlet (13).

5. An esterification reaction kettle according to claim 4, characterized in that: The bottom of the stirrer (4) is provided with a conical stirring blade (8) which fits the bottom of the kettle body (1), and the stirrer (4) above the conical stirring blade (8) is provided with a spiral stirring blade (9).

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