Solid-liquid reaction rectifying tower with anti-blocking facility

Abstract

The utility model provides a solid-liquid reaction rectifying tower with an anti-blocking facility. The solid-liquid reaction rectifying tower comprises a vertical tower body and a disturbance module, the vertical tower body is provided with a reaction cavity, and a plurality of tower plates are arranged in the reaction cavity at intervals in the vertical direction. The disturbance module is provided with a plurality of disturbance parts which are located in the reaction cavity and arranged above the tower plates one by one, and the disturbance module can drive the disturbance parts to disturb the reaction liquid and the fixed catalyst on the tower plates. According to the solid-liquid reaction rectifying tower with the anti-blocking facility, reaction liquid and a solid catalyst flowing on each tower plate are disturbed or stirred by the disturbance module through the disturbance parts arranged above the tower plates, so that the solid catalyst can be effectively prevented from depositing on the tower plates, the tower plates are further prevented from being blocked by the solid catalyst, and the product quality is improved. The catalytic reaction synthesis effect can be ensured, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation towers, and in particular relates to a solid-liquid reaction distillation tower with anti-blocking facilities. Background Art

[0002] A distillation tower is a chemical equipment used to separate the different components in a mixture through a distillation process. Distillation is based on the differences in boiling points of the different components and is achieved by heating the mixture to partially evaporate it and then condensing the vapor. In the case of a solid-liquid reaction distillation tower, due to the small particle size of the solid catalyst, it becomes extremely viscous after mixing with the reaction liquid. As the viscous solid catalyst flows through the tower plates, and as it is intercepted by the downcomer, the solid catalyst will continuously precipitate and adsorb on the plates, causing the solid catalyst content in the reaction liquid to decrease, affecting the catalytic reaction synthesis effect.

[0003] In the prior art, in order to prevent the solid catalyst from clogging the tower plate, a gas redistributor is usually installed above the tower plate. However, since the airflow resistance in the tower is too large, the installation of a gas redistributor will multiply the airflow resistance, greatly reducing the disturbing effect of the gas on the reaction liquid. In addition, the solid catalyst will also be deposited on the surface of the gas redistributor, blocking the pore channel, which will lead to uneven airflow distribution and further increase the airflow resistance, affecting the catalytic reaction synthesis effect. Of course, there is also a method of suspending the gas redistributor in the reaction liquid to avoid the catalyst deposition area at the bottom, but during the reaction process, the solid catalyst will still be continuously adsorbed on its surface to block the pores. As the reaction time increases, the number of blocked pores gradually increases. Utility Model Content

[0004] The embodiment of the utility model provides a solid-liquid reaction distillation tower with an anti-clogging facility, aiming to solve the problem of poor practicality of the method used by the existing solid-liquid reaction distillation tower to prevent the solid catalyst from clogging the tower plate.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a solid-liquid reaction distillation tower with anti-clogging facilities, comprising:

[0006] A vertical tower body has a reaction chamber, in which a plurality of trays are arranged at intervals along the vertical direction;

[0007] The disturbance module has a plurality of disturbance parts located in the reaction chamber and arranged one by one above each of the tower plates. The disturbance module is used to drive each of the disturbance parts to disturb the reaction liquid and the fixed catalyst on each of the tower plates.

[0008] In a possible implementation, the disturbance module includes:

[0009] Main gas pipeline, used for transporting gas;

[0010] There are multiple sub-gas pipelines, each of which corresponds to each tower plate one by one, one end of each sub-gas pipeline is connected to the main gas pipeline, and the other end passes through the outer wall of the vertical tower body and extends above the corresponding tower plate;

[0011] There are multiple disturbance components, each of which is located in the reaction chamber and is connected to each of the sub-gas pipelines in a one-to-one correspondence; the disturbance component is the disturbance part;

[0012] Controller.

[0013] In one possible implementation, the main gas transmission pipeline includes:

[0014] Main pipe, one end of which is connected to the gas supply equipment;

[0015] There are two branch pipes, each branch pipe is located on both sides of the vertical tower body;

[0016] Any two adjacent sub-gas pipelines in the vertical direction extend out from both sides of the vertical tower body along the radial direction of the vertical tower body, and are respectively connected to the two branch pipelines.

[0017] In a possible implementation, each of the sub-gas pipelines includes:

[0018] A gas pipe, one end of which is connected to the main gas pipeline and the other end of which extends into the reaction chamber; an electric regulating valve and a pneumatic ball valve are provided on the gas pipe; the electric regulating valve and the pneumatic ball valve are both electrically connected to the controller;

[0019] A bypass branch pipe, with two ends located on both sides of the electric regulating valve and connected to the gas pipe, and a manual small ball valve is provided on the bypass branch pipe;

[0020] The gas flow meter is arranged on the gas transmission pipe and is electrically connected to the controller.

[0021] In a possible implementation, the disturbance component includes:

[0022] A circular base is disposed in the reaction chamber and is located above the corresponding tray and is connected to the corresponding sub-gas pipeline; the circular base has a cavity in communication with the sub-gas pipeline; a plurality of vertical pipes are provided at the bottom end of the circular base, each of the vertical pipes is evenly distributed on the bottom surface of the circular base and is connected to the cavity;

[0023] There are multiple rotating members, each of which is sealingly and rotatably connected to each of the vertical pipes, and each of the rotating members has a through hole;

[0024] An impeller is fixedly disposed in the through hole and is used to drive the rotating member to rotate when air flows through the through hole;

[0025] There are a plurality of stirring blades, each of which is arranged on the outer wall of the rotating member at annular intervals around the axis of the rotating member, and one end of each stirring blade protrudes.

[0026] In a possible implementation, one end of the rotating member extends into the vertical connecting pipe, and a sealed bearing is provided between the rotating member and the vertical connecting pipe.

[0027] In a possible implementation, the bottom surface of the circular base is lower than the top height of the corresponding downcomer.

[0028] In a possible implementation, the disturbance component includes:

[0029] A circular base is disposed in the reaction chamber and is located above the corresponding tray and is connected to the corresponding sub-gas pipeline; the circular base has a cavity in communication with the sub-gas pipeline; a plurality of vertical pipes are provided at the bottom end of the circular base, each of the vertical pipes is evenly distributed on the bottom surface of the circular base and is connected to the cavity;

[0030] There are multiple rotating members, each of which corresponds to each of the vertical pipes. Each of the rotating members has a lumen with one end being open, and each of the rotating members is sealingly and rotatably connected to the corresponding vertical pipe.

[0031] There are multiple stirring blades, each of which is arranged in a ring-shaped interval around the axis of the rotating member, one end of each stirring blade is fixedly connected to the rotating member, and each stirring blade is provided with an air passage connected to the tube cavity, and the air outlet of the air passage is located at the edge of the stirring blade and is arranged in a tangential direction along the rotating member.

[0032] In a possible implementation, one end of the rotating member extends into the vertical connecting pipe, and a sealed bearing is provided between the rotating member and the vertical connecting pipe.

[0033] In this implementation, the disturbance module can disturb or stir the reaction liquid and solid catalyst flowing on each tower plate through the disturbance part arranged above each tower plate, which can effectively prevent the solid catalyst from depositing on the tower plate and thus prevent it from clogging the tower plate, thereby ensuring the catalytic reaction synthesis effect and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1A schematic cross-sectional view of a solid-liquid reaction distillation tower with anti-clogging facilities provided in an embodiment of the present utility model;

[0035] Figure 2 A schematic diagram of the sub-gas transmission pipeline structure of a solid-liquid reaction distillation tower with anti-clogging facilities provided in an embodiment of the utility model;

[0036] Figure 3 A schematic diagram of the structure of a disturbance component of a solid-liquid reaction distillation tower with anti-clogging facilities provided in an embodiment of the present utility model;

[0037] Figure 4 for Figure 3 An enlarged structural diagram of the disturbance component A provided in the embodiment;

[0038] Figure 5 A partial structural diagram of another embodiment of a disturbance assembly of a solid-liquid reaction distillation tower with an anti-clogging facility provided in an embodiment of the present utility model;

[0039] Figure 6 for Figure 5 A schematic cross-sectional view of the disturbance component at position BB provided in the embodiment;

[0040] Description of reference numerals:

[0041] 10. Vertical tower body; 11. Tray; 12. Downcomer; 13. First feed inlet; 14. Second feed inlet; 15. Third feed inlet; 16. Fourth feed inlet; 17. Fifth feed inlet; 18. First discharge inlet; 19. Second discharge inlet;

[0042] 20. Disturbance module; 21. Main gas pipeline; 211. Main pipeline; 212. Branch pipeline; 22. Sub-gas pipeline; 221. Gas pipeline; 222. Bypass branch; 223. Electric regulating valve; 224. Pneumatic ball valve; 225. Manual small ball valve; 226. Gas flow meter; 23. Disturbance component; 231. Circular base; 232. Rotating part; 233. Impeller; 234. Agitation blade; 235. Vertical connecting pipe; 236. Sealed bearing; 237. Air passage; 238. Air outlet; 24. Controller. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] Please also refer to Figure 1The solid-liquid reaction distillation tower with anti-clogging facilities provided by the present invention will now be described. The solid-liquid reaction distillation tower with anti-clogging facilities comprises a vertical tower body 10 and a disturbance module 20. The vertical tower body 10 comprises a reaction chamber, in which a plurality of trays 11 are arranged at intervals along the vertical direction. The disturbance module 20 comprises a plurality of disturbance parts located in the reaction chamber and arranged one by one above each tray 11. The disturbance module 20 is capable of driving each disturbance part to disturb the reaction liquid and fixed catalyst on each tray 11.

[0045] Compared with the prior art, the solid-liquid reaction distillation tower with anti-clogging facilities provided in this embodiment has a disturbance module 20 that is arranged above each tower plate 11 to disturb or stir the reaction liquid and solid catalyst flowing on each tower plate 11, thereby effectively preventing the solid catalyst from being deposited on the tower plate 11 and thus preventing it from clogging the tower plate 11, thereby ensuring the catalytic reaction synthesis effect and having strong practicality.

[0046] It should be noted that the vertical tower body 10 also has a first feed port 13 for feeding water and organic phase raw materials, a second feed port 14 for feeding water and solid phase catalyst, and a third feed port 15 for feeding organic phase raw materials. A first discharge port 18 for leading out the mixed reaction product, a fourth feed port 16 for leading in the separated organic phase mixture, a fifth feed port 17 for leading in the organic phase raw materials, and a second discharge port 19 for leading out the organic phase. The first feed port 13, the second feed port 14, the third feed port 15, the first discharge port 18, the fourth feed port 16, the fifth feed port 17, and the second discharge port 19 are arranged in sequence from top to bottom. The first discharge port 18 and the fourth feed port 16 can be connected to a separator, respectively. The second discharge port 19 and the fifth feed port 17 can be connected to a reboiler, respectively. The above technology is prior art and is well known to those skilled in the art and will not be described in detail here.

[0047] In some embodiments, the disturbance module 20 may be implemented as follows: Figure 1 The structure shown. Figure 1 The disturbance module 20 includes a main gas pipeline 21, a sub-gas pipeline 22, a disturbance component 23 and a controller 24. The main gas pipeline 21 can transport gas and can be connected to an external gas supply device. There are multiple sub-gas pipelines 22, each of which corresponds to each tower plate 11. One end of each sub-gas pipeline 22 is connected to the main gas pipeline 21, and the other end passes through the outer wall of the vertical tower body 10 and extends to the top of the corresponding tower plate 11. There are multiple disturbance components 23, each of which is located in the reaction chamber and is connected to each sub-gas pipeline 22 in a one-to-one correspondence. The disturbance component 23 is the disturbance part.

[0048] The main gas pipeline 21 can transport gas to each sub-gas pipeline 22, and then transport the airflow to each disturbance component 23 through each sub-gas pipeline 22. Each disturbance component 23 can disturb the material on each tower plate 11 respectively, thereby effectively preventing the solid catalyst from depositing and clogging the tower plate 11.

[0049] In some embodiments, the main gas pipeline 21 can be used as follows Figure 1 The structure shown. Figure 1 The main gas transmission pipeline 21 includes a main pipeline 211 and a branch pipeline 212. One end of the main pipeline 211 is connected to the gas supply equipment. There are two branch pipelines 212, each located on both sides of the vertical tower body 10.

[0050] Any two adjacent sub-gas pipelines 22 in the vertical direction extend out from both sides of the vertical tower body 10 along the radial direction of the vertical tower body 10 and are connected to the two branch pipelines 212 respectively.

[0051] The distance between the tower plates 11 is small, so each sub-gas pipeline 22 is connected to two branch pipelines 212 respectively, which can avoid interference between the sub-gas pipelines 22 and facilitate installation and connection. It has a simple structure and strong practicality.

[0052] In some embodiments, the sub-gas pipeline 22 may be Figure 2 The structure shown. Figure 2 Each sub-gas pipeline 22 includes a gas pipeline 221, a bypass branch 222, and a gas flow meter 226. One end of the gas pipeline 221 is connected to the main gas pipeline 21, and the other end extends into the reaction chamber. The gas pipeline 221 is provided with an electric regulating valve 223 and a pneumatic ball valve 224. The electric regulating valve 223 and the pneumatic ball valve 224 are both electrically connected to the controller 24. The two ends of the bypass branch 222 are located on both sides of the electric regulating valve 223 and are connected to the gas pipeline 221. A manual small ball valve 225 is provided on the bypass branch 222. The gas flow meter 226 is set on the gas pipeline 221 and is electrically connected to the controller 24.

[0053] Gas flowmeter 226 measures the amount of gas flowing through gas pipeline 221 and transmits the signal to controller 24. Electric control valve 223 receives commands from controller 24 to precisely control the gas flow, ensuring stable airflow within the gas pipeline. Bypass branch 222 and manual ball valve 225 ensure continuous airflow during maintenance of electric control valve 223, ensuring catalytic synthesis operation.

[0054] In addition, a check valve may be provided on the gas delivery pipe 221 to prevent backflow of gas and liquid.

[0055] In some embodiments, the disturbance component 23 may be implemented as follows: Figures 3 and 4 The structure shown. Figures 3 and 4 The disturbance component 23 includes a circular base 231, a rotating part 232, an impeller 233 and a stirring blade 234. The circular base 231 is arranged in the reaction chamber, and is located above the corresponding tower plate 11, and is connected to the corresponding sub-gas pipeline 22. The circular base 231 has a cavity connected to the sub-gas pipeline 22. A plurality of vertical pipes 235 are provided at the bottom end of the circular base 231, and each vertical pipe 235 is evenly distributed on the bottom surface of the circular base 231 and is connected to the cavity. There are multiple rotating parts 232, and each rotating part 232 is sealed and rotatably connected to each vertical pipe 235, and the rotating part 232 has a through hole. The impeller 233 is fixed in the through hole and can drive the rotating part 232 to rotate when air flows through the through hole. A plurality of stirring blades 234 are provided. Each stirring blade 234 is arranged on the outer wall of the rotating member 232 at annular intervals around the axis of the rotating member 232, and one end of each stirring blade 234 extends out.

[0056] The circular base 231 can be a cylindrical shell and is connected to the sub-gas pipeline 22. It can receive the airflow from the sub-gas pipeline 22 and evenly distribute it to each vertical pipe 235. Through the connection between the vertical pipe 235 and the rotating parts 232, after the airflow passes through the impeller 233, it will drive the impeller 233 to rotate. Then, the impeller 233 and the rotating part 232 rotate together, driving the stirring blades 234 to rotate. At the same time, the bubbles formed by the ejected airflow can further agitate the material, ensuring that the reaction liquid and solid catalyst on the tower plate 11 are effectively stirred and disturbed, preventing the solid catalyst from depositing, ensuring that the channels on the tower plate 11 are unobstructed, and ensuring the catalytic reaction synthesis effect.

[0057] It should be noted that the rotating member 232 may be a rotatable structure, such as a circular tube.

[0058] In some embodiments, the rotating member 232 may be configured as follows: Figures 3 and 4 The structure shown. Figures 3 and 4 One end of the rotating member 232 extends into the vertical pipe 235 , and a sealed bearing 236 is provided between the rotating member 232 and the vertical pipe 235 .

[0059] The provision of the sealed bearing 236 can ensure the sealing between the rotating member 232 and the vertical pipe 235 , and also ensure that the two can rotate smoothly relative to each other.

[0060] In some embodiments, the circular base 231 may be formed as follows: Figure 1 The structure shown. Figure 1The bottom surface of the circular base 231 is lower than the top height of the corresponding downcomer 12. This structure can ensure that the rotating member 232 and the stirring blades are immersed in the reaction liquid, thereby ensuring the disturbance effect.

[0061] As another embodiment of the disturbance component in the present invention, the following can be adopted: Figures 5 and 6 The structure shown. Figures 5 and 6 The disturbance component 23 includes a circular base 231, a rotating member 232 and a stirring blade. The circular base 231 is arranged in the reaction chamber, and is located above the corresponding tower plate 11, and is connected to the corresponding sub-gas pipe 221 22. The circular base 231 has a cavity connected to the sub-gas pipe 221 22. A plurality of vertical pipes 235 are provided at the bottom end of the circular base 231, and each vertical pipe 235 is evenly distributed on the bottom surface of the circular base 231 and is connected to the cavity. There are a plurality of rotating members 232, and each rotating member 232 corresponds to each vertical pipe 235 one by one. Each rotating member 232 has a pipe cavity with one end being open, and each rotating member 232 is sealed and rotatably connected to the corresponding vertical pipe 235. There are multiple stirring blades 234, and each stirring blade 234 is arranged in a ring-shaped interval around the axis of the rotating member 232. One end of each stirring blade 234 is fixedly connected to the rotating member 232. Each stirring blade 234 is provided with an air passage 237 connected to the tube cavity. The air outlet 238 of the air passage 237 is located at the edge of the stirring blade and is arranged in a tangential direction along the rotating member 232.

[0062] The circular base 231 can be a cylindrical body with a cylindrical outer structure and is connected to the sub-gas pipes 221 and 22. It can receive the airflow from the sub-gas pipes 221 and 22 and evenly distribute it to each vertical pipe 235. Through the connection between the vertical pipes 235 and the rotating parts 232, the airflow is transmitted to each tube cavity and guided out from the air outlet 238 through the air passage 237. Each air outlet 238 is arranged along the tangent direction of the rotating part 232. Therefore, when the airflow is ejected, it provides a reverse force to the stirring blades 234, thereby causing each stirring blade 234 to rotate forward. At the same time, the airflow forms bubbles to further ensure the stirring effect and the catalytic reaction synthesis effect.

[0063] In some embodiments, the rotating member 232 may be configured as follows: Figures 5 and 6 The structure shown. Figures 5 and 6 One end of the rotating member 232 extends into the vertical pipe 235 , and a sealed bearing 236 is provided between the rotating member 232 and the vertical pipe 235 .

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A solid-liquid reaction distillation tower with anti-clogging facilities, characterized in that: include: A vertical tower body has a reaction chamber, in which a plurality of trays are arranged at intervals along the vertical direction; The disturbance module has a plurality of disturbance parts located in the reaction chamber and arranged one by one above each of the tower plates. The disturbance module is used to drive each of the disturbance parts to disturb the reaction liquid and the fixed catalyst on each of the tower plates.

2. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 1, characterized in that: The disturbance module includes: Main gas pipeline, used for transporting gas; There are multiple sub-gas pipelines, each of which corresponds to each tower plate one by one, one end of each sub-gas pipeline is connected to the main gas pipeline, and the other end passes through the outer wall of the vertical tower body and extends above the corresponding tower plate; There are multiple disturbance components, each of which is located in the reaction chamber and is connected to each of the sub-gas pipelines in a one-to-one correspondence; the disturbance component is the disturbance part; Controller.

3. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 2, characterized in that: The main gas transmission pipeline includes: Main pipe, one end of which is connected to the gas supply equipment; There are two branch pipes, each branch pipe is located on both sides of the vertical tower body; Any two adjacent sub-gas pipelines in the vertical direction extend out from both sides of the vertical tower body along the radial direction of the vertical tower body, and are respectively connected to the two branch pipelines.

4. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 2, characterized in that: Each of the sub-gas pipelines comprises: A gas pipe, one end of which is connected to the main gas pipeline and the other end of which extends into the reaction chamber; an electric regulating valve and a pneumatic ball valve are provided on the gas pipe; the electric regulating valve and the pneumatic ball valve are both electrically connected to the controller; A bypass branch pipe, with two ends located on both sides of the electric regulating valve and connected to the gas pipe, and a manual small ball valve is provided on the bypass branch pipe; The gas flow meter is arranged on the gas transmission pipe and is electrically connected to the controller.

5. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 2, characterized in that: The disturbance component includes: A circular base is disposed in the reaction chamber and is located above the corresponding tray and is connected to the corresponding sub-gas pipeline; the circular base has a cavity in communication with the sub-gas pipeline; a plurality of vertical pipes are provided at the bottom end of the circular base, each of the vertical pipes is evenly distributed on the bottom surface of the circular base and is connected to the cavity; There are multiple rotating members, each of which is sealingly and rotatably connected to each of the vertical pipes, and each of the rotating members has a through hole; An impeller is fixedly disposed in the through hole and is used to drive the rotating member to rotate when air flows through the through hole; There are a plurality of stirring blades, each of which is arranged on the outer wall of the rotating member at annular intervals around the axis of the rotating member, and one end of each stirring blade protrudes.

6. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 5, characterized in that: One end of the rotating member extends into the vertical connecting pipe, and a sealed bearing is provided between the rotating member and the vertical connecting pipe.

7. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 5, characterized in that: The bottom surface of the circular base is lower than the top height of the corresponding downcomer.

8. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 2, characterized in that: The disturbance component includes: A circular base is disposed in the reaction chamber and is located above the corresponding tray and is connected to the corresponding sub-gas pipeline; the circular base has a cavity in communication with the sub-gas pipeline; a plurality of vertical pipes are provided at the bottom end of the circular base, each of the vertical pipes is evenly distributed on the bottom surface of the circular base and is connected to the cavity; There are multiple rotating members, each of which corresponds to each of the vertical pipes. Each of the rotating members has a lumen with one end being open, and each of the rotating members is sealingly and rotatably connected to the corresponding vertical pipe. There are multiple stirring blades, each of which is arranged in a ring-shaped interval around the axis of the rotating member, one end of each stirring blade is fixedly connected to the rotating member, and each stirring blade is provided with an air passage connected to the tube cavity, and the air outlet of the air passage is located at the edge of the stirring blade and is arranged in a tangential direction along the rotating member.

9. The solid-liquid reaction distillation tower with anti-clogging facilities according to claim 8, characterized in that: One end of the rotating member extends into the vertical connecting pipe, and a sealed bearing is provided between the rotating member and the vertical connecting pipe.

Images