Aromatic ether vacuum dewatering device

Abstract

The utility model discloses a kind of aromatic ether vacuum dewatering devices, including reaction kettle, the top of the reaction kettle is provided with spherical cover, the outside of the reaction kettle is provided with jacket, vacuum pump is fixedly connected with the outside one side of the jacket, exhaust pipe is fixedly connected between the vacuum pump and spherical cover, the side of the vacuum pump away from jacket is fixedly connected with elbow pipe, the end of the elbow pipe away from vacuum pump is fixedly connected with absorption tank, the inner wall top of the absorption tank is provided with packing layer.The utility model is extracted by starting vacuum pump, the water vapor produced by dehydration and part low-boiling-point impurities, gas enters into absorption tank by elbow pipe, and moves from the bottom of absorption tank, so that the pump body of liquid inlet pipe side works, and chemical absorption liquid is pumped to the inside of spray pipe, and gas is sprayed, so as to absorb harmful substance in gas, and after processing gas passes through packing layer, and gas is treated twice by packing layer, to improve purification effect.

Description

Technical Field

[0001] This utility model relates to the field of vacuum dehydration technology, specifically to a vacuum dehydration device for aromatic ethers. Background Technology

[0002] Aromatic ethers are generally neutral compounds with a pleasant aromatic odor. They are slightly soluble or insoluble in water, readily soluble in organic solvents, and have boiling points similar to those of hydrocarbons with similar molecular weights and structures. They are commonly used in the fragrance industry as organic intermediates for the synthesis of dyes, pesticides, and pharmaceuticals. Some high-boiling-point aromatic ethers can be used as heat carriers, and some are also used as food preservatives and antioxidants.

[0003] Since some aromatic ethers are slightly soluble in water, they are prone to contain moisture after production. To improve the purity of aromatic ethers, a vacuum dehydration device is needed to remove the moisture. However, when the dehydration is completed and the gas is discharged using a vacuum pump, the gas contains not only water vapor but also a small amount of aromatic ether materials or other harmful substances. Direct discharge into the environment can easily cause pollution. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum dehydration device for aromatic ethers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aromatic ether vacuum dehydration device, comprising a reaction vessel, a spherical cover on the top of the reaction vessel, a jacket on the outside of the reaction vessel, a vacuum pump fixedly connected to one side of the jacket, an exhaust pipe fixedly connected between the vacuum pump and the spherical cover, a bent pipe fixedly connected to the side of the vacuum pump away from the jacket, an absorption box fixedly connected to the end of the bent pipe away from the vacuum pump, and a packing layer provided on the top of the inner wall of the absorption box.

[0006] As a further preferred embodiment of this technical solution, a rotating rod is rotatably connected inside the absorption box, and a drive motor is fixedly connected to one end of the rotating rod. The drive motor is fixedly installed outside the absorption box. Connecting blocks are symmetrically arranged on both sides of the surface of the rotating rod. A spray pipe is fixedly connected to the bottom of the connecting block. A liquid inlet pipe is fixedly connected to one side of the spray pipe. The liquid inlet pipe passes through the absorption box and extends to the outside.

[0007] As a further preferred embodiment of this technical solution, a collection box is provided at the bottom of the absorption box, and an installation frame is fixedly connected to one side of the collection box. An air outlet is provided on the side of the installation frame away from the collection box, and a dustproof net is correspondingly provided inside the air outlet. Multiple cooling fans are provided on the side of the installation frame near the drive motor.

[0008] As a further preferred embodiment of this technical solution, a condenser tube is provided inside the mounting frame, a connecting pipe is fixedly connected between the condenser tube and the absorption box, and a connecting pipe is fixedly connected between the condenser tube and the collection box.

[0009] As a further preferred embodiment of this technical solution, a conveying pipe is provided between the reactor and the jacket, and an inlet and an outlet are respectively provided at both ends of the conveying pipe, which are distributed from top to bottom.

[0010] As a further preferred embodiment of this technical solution, a feed inlet and a pressure regulating valve are fixedly connected to one side of the top of the spherical cover, and an electric valve is installed inside the feed inlet.

[0011] As a further preferred embodiment of this technical solution, a rotary motor is fixedly connected to the top of the spherical cover, the output shaft of the rotary motor passes through the spherical cover and is fixedly connected to a connecting shaft at the bottom, two spiral stirring blades are evenly distributed circumferentially on the surface of the connecting shaft, crossbars are symmetrically arranged on both sides of the surface of the connecting shaft, and a scraper is fixedly connected to the end of the crossbar away from the connecting shaft, and the scraper is in contact with the inner wall of the reaction vessel.

[0012] This invention provides a vacuum dehydration device for aromatic ethers, which has the following advantages:

[0013] (1) This utility model extracts water vapor and some low-boiling-point impurities generated during dehydration by starting a vacuum pump. The gas enters the absorption box through a bend and moves upward from the bottom of the absorption box, causing the pump body on one side of the liquid inlet pipe to work, pumping the chemical absorption liquid into the nozzle and spraying it onto the gas, thereby absorbing harmful substances in the gas. The treated gas passes through the packing layer and undergoes secondary treatment through the packing layer to improve the purification effect.

[0014] (2) After the gas is processed, it continues to move upward and enters the condenser through the first connecting pipe. The cooling fan works, so that the purified gas flows in the condenser and condenses and liquefies at the same time. The condensate is collected in the collection box through the second connecting pipe, thereby maintaining the vacuum in the reactor and ensuring that the dehydration process continues. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the conveying pipeline structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the reaction vessel of this utility model;

[0018] Figure 4This is a schematic diagram of the absorption box and collection box of this utility model;

[0019] Figure 5 This is a schematic diagram of the condenser tube structure of this utility model;

[0020] Figure 6 This is a schematic cross-sectional view of the absorption box of this utility model.

[0021] In the diagram: 1. Reactor; 2. Spherical cover; 3. Jacket; 4. Vacuum pump; 5. Exhaust pipe; 6. Bend; 7. Absorption tank; 8. Packing layer; 9. Rotating rod; 10. Drive motor; 11. Connecting block; 12. Nozzle; 13. Liquid inlet pipe; 14. Collection tank; 15. Mounting frame; 16. Dustproof net; 17. Cooling fan; 18. Condenser pipe; 19. Connecting pipe one; 20. Connecting pipe two; 21. Conveying pipe; 22. Liquid inlet; 23. Liquid outlet; 24. Feed inlet; 25. Pressure regulating valve; 26. Rotary motor; 27. Connecting shaft; 28. Spiral stirring blades; 29. ​​Crossbar; 30. Scraper. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1 to 6 As shown in this embodiment, an aromatic ether vacuum dehydration device includes a reaction vessel 1, a spherical cover 2 on the top of the reaction vessel 1, a jacket 3 on the outside of the reaction vessel 1, a vacuum pump 4 fixedly connected to one side of the outer side of the jacket 3, an exhaust pipe 5 fixedly connected between the vacuum pump 4 and the spherical cover 2, a bent pipe 6 fixedly connected to the side of the vacuum pump 4 away from the jacket 3, an absorption box 7 fixedly connected to the end of the bent pipe 6 away from the vacuum pump 4, and a packing layer 8 provided on the top of the inner wall of the absorption box 7.

[0024] The absorber 7 is rotatably connected to a rotating rod 9. One end of the rotating rod 9 is fixedly connected to a drive motor 10. The drive motor 10 is fixedly installed on the outside of the absorber 7. Connecting blocks 11 are symmetrically arranged on both sides of the surface of the rotating rod 9. A nozzle 12 is fixedly connected to the bottom of the connecting block 11. A liquid inlet pipe 13 is fixedly connected to one side of the nozzle 12. The liquid inlet pipe 13 passes through the absorber 7 and extends to the outside.

[0025] The vacuum pump 4 is started to extract the water vapor and some low-boiling-point impurities generated during dehydration. The gas enters the absorption box 7 through the bend 6 and moves upward from the bottom of the absorption box 7, causing the pump body on one side of the liquid inlet pipe 13 to work, pumping the chemical absorption liquid into the nozzle 12 and spraying it onto the gas, thereby absorbing harmful substances in the gas. During the spraying process, the drive motor 10 is started, and its output shaft drives the rotating rod 9 to rotate. The connecting block 11 drives the nozzle 12 to rotate, thereby adjusting the spraying range. The treated gas passes through the packing layer 8, which is made of activated carbon material, thereby performing secondary treatment on the gas to improve the purification effect.

[0026] A collection box 14 is provided at the bottom of the absorption box 7. A mounting frame 15 is fixedly connected to one side of the collection box 14. An air outlet is provided on the side of the mounting frame 15 away from the collection box 14, and a dustproof net 16 is provided inside the air outlet. Multiple cooling fans 17 are provided on the side of the mounting frame 15 near the drive motor 10.

[0027] The mounting frame 15 is equipped with a condenser pipe 18. A connecting pipe 19 is fixedly connected between the condenser pipe 18 and the absorption box 7, and a connecting pipe 20 is fixedly connected between the condenser pipe 18 and the collection box 14.

[0028] After the gas is processed, it continues to rise and enters the condenser tube 18 through the connecting pipe 19. The cooling fan 17 works, so that the purified gas flows in the condenser tube 18 and condenses and liquefies at the same time. The condensate is collected in the collection box 14 through the connecting pipe 20, thereby maintaining the vacuum in the reactor 1 and ensuring that the dehydration process continues.

[0029] A conveying pipe 21 is provided between the reactor 1 and the jacket 3. The two ends of the conveying pipe 21 are respectively provided with a liquid inlet 22 and a liquid outlet 23, which are distributed from top to bottom.

[0030] A conveying pipe 21 is installed between the reactor 1 and the jacket 3, so that a high-temperature liquid can be introduced into it during the dehydration of the material. The high-temperature liquid can be heat transfer oil. As the high-temperature liquid flows, it transfers heat to the aromatic ether material in the reactor 1, raising the material temperature and accelerating the evaporation of water. A temperature sensor is installed in the reactor 1 to monitor the material temperature in real time, so as to achieve precise control of the temperature of the reactor 1, ensuring that the dehydration process is carried out within the set temperature range, and avoiding adverse reactions such as decomposition or polymerization of aromatic ether material due to excessive temperature.

[0031] A feed inlet 24 and a pressure regulating valve 25 are fixedly connected to one side of the top of the spherical cover 2. An electric valve is installed inside the feed inlet 24.

[0032] A rotary motor 26 is fixedly connected to the top of the spherical cover 2. The output shaft of the rotary motor 26 passes through the spherical cover 2 and is fixedly connected to the bottom of the connecting shaft 27. Two spiral stirring blades 28 are evenly distributed on the circumference of the surface of the connecting shaft 27. Crossbars 29 are symmetrically arranged on both sides of the surface of the connecting shaft 27. A scraper 30 is fixedly connected to the end of the crossbar 29 away from the connecting shaft 27. The scraper 30 is in contact with the inner wall of the reactor 1.

[0033] Start the rotary motor 26, whose output shaft drives the connecting shaft 27 to rotate, and the spiral stirring blades 28 rotate accordingly, so that the material is mixed evenly and continuously renewed in contact with the inner wall of the reactor 1, thereby accelerating the evaporation of moisture and improving working efficiency.

[0034] This utility model provides a vacuum dehydration device for aromatic ethers, the specific working principle of which is as follows:

[0035] In operation, firstly, vacuum pump 4 is started to create a certain vacuum in reactor 1, lowering the boiling point of aromatic ether materials. Then, the aromatic ether materials to be dehydrated are transported to reactor 1 through feed inlet 24 using feed pump. High-temperature liquid is introduced into conveying pipe 21 through liquid inlet 22 to heat reactor 1. Simultaneously, rotating motor 26 drives connecting shaft 27 to rotate, and spiral stirring blades 28 rotate accordingly, thus ensuring uniform mixing of materials and continuous renewal of contact with the inner wall of reactor 1. This causes the moisture in the materials to evaporate rapidly into water vapor. Vacuum pump 4 extracts the gas, which is then passed through a curved... Pipe 6 enters the absorption tank 7 and moves upward from the bottom of the absorption tank 7, causing the pump on one side of the liquid inlet pipe 13 to work, pumping the chemical absorption liquid into the nozzle 12 and spraying it onto the gas, thereby absorbing harmful substances in the gas. The treated gas passes through the packing layer 8 and undergoes secondary treatment through the packing layer 8. The treated gas continues to move upward and enters the condenser pipe 18 through the connecting pipe 19. The cooling fan 17 works, so that the purified gas flows in the condenser pipe 18 and condenses and liquefies at the same time. The condensate is collected in the collection tank 14 through the connecting pipe 20, thereby completing the dehydration of the material.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum dehydration device for aromatic ethers, comprising a reaction vessel (1), characterized in that: The top of the reactor (1) is provided with a spherical cover (2), and the outside of the reactor (1) is provided with a jacket (3). A vacuum pump (4) is fixedly connected to one side of the jacket (3). An exhaust pipe (5) is fixedly connected between the vacuum pump (4) and the spherical cover (2). A bent pipe (6) is fixedly connected to the side of the vacuum pump (4) away from the jacket (3). An absorption box (7) is fixedly connected to the end of the bent pipe (6) away from the vacuum pump (4). A packing layer (8) is provided on the top of the inner wall of the absorption box (7).

2. The vacuum dehydration device for aromatic ethers according to claim 1, characterized in that: The absorber (7) is rotatably connected to a rotating rod (9). One end of the rotating rod (9) is fixedly connected to a drive motor (10). The drive motor (10) is fixedly installed on the outside of the absorber (7). Connecting blocks (11) are symmetrically arranged on both sides of the surface of the rotating rod (9). A nozzle (12) is fixedly connected to the bottom of the connecting block (11). An inlet pipe (13) is fixedly connected to one side of the nozzle (12). The inlet pipe (13) passes through the absorber (7) and extends to the outside.

3. The vacuum dehydration device for aromatic ethers according to claim 1, characterized in that: The bottom of the absorption box (7) is provided with a collection box (14), and a mounting frame (15) is fixedly connected to one side of the collection box (14). An air outlet is opened on the side of the mounting frame (15) away from the collection box (14), and a dustproof net (16) is correspondingly provided inside the air outlet. Multiple cooling fans (17) are provided on the side of the mounting frame (15) close to the drive motor (10).

4. The vacuum dehydration device for aromatic ethers according to claim 3, characterized in that: The mounting frame (15) is provided with a condenser pipe (18), and a connecting pipe (19) is fixedly connected between the condenser pipe (18) and the absorption box (7), and a connecting pipe (20) is fixedly connected between the condenser pipe (18) and the collection box (14).

5. The vacuum dehydration device for aromatic ethers according to claim 1, characterized in that: A conveying pipe (21) is provided between the reactor (1) and the jacket (3). The two ends of the conveying pipe (21) are respectively provided with an inlet (22) and an outlet (23), and the inlet (22) and outlet (23) are distributed from top to bottom.

6. The vacuum dehydration device for aromatic ethers according to claim 1, characterized in that: The top side of the spherical cover (2) is fixedly connected to a feed inlet (24) and a pressure regulating valve (25), and an electric valve is installed inside the feed inlet (24).

7. The vacuum dehydration device for aromatic ethers according to claim 1, characterized in that: A rotary motor (26) is fixedly connected to the top of the spherical cover (2). The output shaft of the rotary motor (26) passes through the spherical cover (2) and is fixedly connected to the bottom of the connecting shaft (27). Two spiral stirring blades (28) are evenly distributed on the circumference of the surface of the connecting shaft (27). Crossbars (29) are symmetrically arranged on both sides of the surface of the connecting shaft (27). A scraper (30) is fixedly connected to the end of the crossbar (29) away from the connecting shaft (27). The scraper (30) is in contact with the inner wall of the reactor (1).

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