Continuous distillation device and continuous distillation process

Abstract

The present invention relates to a high-efficiency continuous distillation device and a continuous distillation process, belonging to the field of distillation processing, comprising: a tower body and a packing column arranged in the tower body, the tower body being provided with a detection device for detecting wall flow phenomenon, the tower body being provided with a flow guiding device for causing the liquid in the packing column to flow toward the central axis of the packing column, when the detection device detects that a wall flow phenomenon occurs in the tower body, the flow guiding device starts to work, when the present application is in use, when the detection device detects that a wall flow phenomenon occurs in the tower, the flow guiding device starts to work, the flow guiding device causes the liquid in the packing column to have an inward movement trend, thereby achieving a balance between the outward movement trend of the liquid and the inward movement trend, effectively solving the wall flow phenomenon without increasing the height of the packing column, improving production efficiency and reducing production costs.

Description

Technical Field

[0001] The present application relates to the field of distillation processing, and in particular to a continuous distillation device. Background Art

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of the components in a mixed liquid to evaporate the low-boiling-point component and then condense it to separate the entire component. It is a unit operation process that combines the two unit operations of evaporation and condensation.

[0003] Although distillation can play a certain role in separation, it cannot separate the mixture into a certain amount of high-purity products. In industry, rectification is usually used to obtain high-purity products. Rectification uses the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature. This property allows the light components (low-boiling substances) in the liquid phase to be transferred to the gas phase, while the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation.

[0004] Based on the operating method, distillation is divided into continuous distillation and batch distillation. Continuous distillation is usually carried out in a distillation tower, which can be divided into two categories: plate towers and packed towers. Packed towers are gas-liquid mass transfer equipment with a large amount of packing as the phase contact member. The tower body of a packed tower is a vertical cylinder with a support plate at the bottom. The packing is placed on the support plate in a random pile or a whole block. A packing plate is installed above the packing to limit the packing's movement with the rising airflow.

[0005] During production, liquid is added at the top of the tower, sprayed onto the packing through a liquid distributor, and flows down through the gaps within the packing. Gas is introduced at the bottom of the tower, distributed by the gas distributor, and continuously passes through the gaps between the packing layers in a countercurrent flow to the liquid, allowing close contact and mass transfer between the gas and liquid phases. When the gas reaches the top of the tower, a condenser located there partially condenses the vapor, which then flows back into the tower, while the remaining gas flows out. When the liquid reaches the bottom of the tower, a reboiler at the bottom vaporizes the liquid, which then rises up the tower again, while the remaining liquid flows out. The feed enters the middle of the tower, and the vapor in the feed rises with the vapor within the tower, while the liquid in the feed descends with the liquid within the tower.

[0006] When the liquid flows down the packing layer, it tends to gradually concentrate toward the tower wall, causing the liquid flow near the tower wall to gradually increase. This phenomenon is called wall flow. The wall flow effect causes the gas and liquid phases to be unevenly distributed in the packing layer, thereby reducing the mass transfer efficiency and affecting the quality of the finished product.

[0007] The usual solution is to divide the packing layer into sections and set a redistribution device in the middle. The redistribution device includes a liquid collector and a redistributor. The liquid flowing down from the upper packing is collected by the collector and sent to the redistributor. After redistribution, it is sprayed onto the top of the lower packing.

[0008] Regarding the above-mentioned related technologies, there are the following defects: multiple packing layers and redistribution devices are arranged at intervals in the tower. On the one hand, not only is the structure complicated, but the packing layers and the redistribution devices are easily blocked during the production process, requiring regular maintenance and replacement, and the maintenance cost is high; on the other hand, the total height of the packing layer is increased; on the third hand, when the redistribution device is working, the gas and liquid cannot be transferred normally, which is equivalent to changing the original continuous mass transfer to intermittent mass transfer. Therefore, not only the gas-liquid mass transfer time is extended, resulting in a decrease in production efficiency, but also the production cost is increased. Summary of the Invention

[0009] In order to improve the problem, the present application provides a continuous distillation device and a continuous distillation process.

[0010] In the first aspect, the present application provides a continuous distillation device adopting the following technical solution:

[0011] A continuous distillation device comprises: a tower body and a packing column arranged in the tower body, the tower body is provided with a detection device for detecting wall flow phenomenon, the tower body is provided with a flow guide device for causing the liquid in the packing column to flow toward the central axis of the packing column, when the detection device detects the occurrence of wall flow phenomenon in the tower body, the flow guide device starts to work.

[0012] By adopting the above technical solution, when the detection device detects the occurrence of wall flow in the tower, the guide device starts to work, and the guide device causes the liquid in the packing column to have an inward movement trend, thereby balancing the outward movement trend of the liquid and the inward movement trend. Without increasing the height of the packing column, the wall flow phenomenon is effectively solved, the production efficiency is improved, and the production cost is reduced.

[0013] Optional: A predetermined gap is left between the tower body and the packing column, and the detection device includes a liquid receiving tray arranged between the tower body and the packing column, the liquid receiving tray is located at the bottom of the packing column, and the side of the liquid receiving tray close to the packing column abuts against the packing column, the top of the liquid receiving tray is provided with a liquid receiving port, the bottom of the liquid receiving tray is provided with a liquid leakage port, and a liquid level sensor is provided at a predetermined height inside the liquid receiving tray.

[0014] By adopting the above technical solution, water vapor and liquid in the tower body can enter the liquid receiving tray from the liquid receiving port and be discharged from the leakage port. When the steam enters the liquid receiving tray, part of it will condense into water droplets, and the feeding speed is less than or equal to the discharging speed; when wall flow occurs, the liquid will enter the liquid receiving tray, and the feeding speed is greater than the discharging speed. When the predetermined liquid level is reached, the liquid level sensor will detect the wall flow phenomenon. The structure is simple and the detection is accurate.

[0015] Optional: The flow-guiding device includes a blast pipe that is arranged on the outside of the tower body and is connected to the air source. The blast pipe is located at the packing column. Blast ports are equidistantly provided on the side of the blast pipe close to the tower body. The blast ports are connected to the inside of the tower body. A one-way cover is hinged on the blast pipe at the blast port. A controller is provided on the tower body, and the controller is electrically connected to the sensor and the air source.

[0016] By adopting the above technical solution, when the wall flow phenomenon is detected, the liquid level sensor transmits a signal to the controller. Under the control of the controller, the air flow generated by the gas source passes through the blast pipe and the blast port and enters the packing column, causing the liquid in the packing column to have an inward movement trend. By using gas as a power source, while solving the wall flow phenomenon, it will not have any negative impact on the reaction in the tower body, thereby improving the processing quality; the setting of the one-way cover plate reduces the possibility of water vapor and liquid overflowing from the tower body, further improving the processing quality.

[0017] Optionally, the liquid receiving tray and the blast pipe are both connected to the tower body in an axially sliding manner, and the tower body is provided with a driving mechanism for driving the liquid receiving tray and the blast pipe to rise and fall respectively, and the controller is electrically connected to the driving mechanism.

[0018] By adopting the above technical solution, the driving mechanism drives the liquid receiving tray to rise and fall, and the liquid receiving tray can accurately measure the wall flow height. The driving mechanism drives the blast pipe to rise and fall, and the blast pipe only performs local blasting at the wall flow height, effectively avoiding the possibility of liquid gathering inward due to excessive wind force and excessive range, so that the liquid is evenly distributed in the packing column, so that the water vapor and liquid react more fully, and the processing quality is improved.

[0019] Optional: The driving mechanism includes a power component, a first transmission component, a second transmission component and an adjustment component. Under the adjustment of the adjustment component, when the power of the power component acts on the first transmission component, the power component drives the liquid receiving tray to rise and fall; when the power of the power component acts on the second transmission component, the power component drives the blower pipe to rise and fall; the controller is electrically connected to the power component and the adjustment component.

[0020] By adopting the above technical solution, under the regulation of the regulating component, one power component can respectively drive the liquid receiving tray and the blast pipe to rise and fall, which is energy-saving and environmentally friendly and consistent with the concept of sustainable development.

[0021] Optionally, the first transmission assembly includes a first screw rod vertically rotatably connected to the tower body, the first screw rod passes through the liquid receiving pan and is threadedly connected to the liquid receiving pan, and a first driven bevel gear is provided at the end of the first screw rod.

[0022] By adopting the above technical solution, under the adjustment of the adjustment component, the power component drives the first driven bevel gear to rotate, the first driven bevel gear drives the first screw to rotate, and the first screw drives the liquid receiving tray to rise and fall, with a simple structure and efficient transmission.

[0023] Optionally: the second transmission assembly includes a second screw rod vertically rotatably connected to the outside of the tower body, the second screw rod passes through the blast pipe and is threadedly connected to the blast pipe, and a second driven bevel gear is provided at the end of the second screw rod.

[0024] By adopting the above technical solution, under the adjustment of the adjustment component, the power component drives the second driven bevel gear to rotate, the second driven bevel gear drives the second screw to rotate, and the second screw drives the blast pipe to rise and fall, with a simple structure and efficient transmission.

[0025] Optional: The power assembly includes a motor arranged on the tower body, a sleeve is connected to the output shaft of the motor in an axially sliding manner along the output shaft, the sleeve is provided with a first driving bevel gear meshing with the first driven bevel gear, the sleeve is provided with a second driving bevel gear meshing with the second driven bevel gear, and the controller is electrically connected to the motor.

[0026] By adopting the above technical solution, the motor drives the sleeve to rotate, and the sleeve simultaneously drives the first active bevel gear and the second active bevel gear to rotate. The adjusting component can adjust the position of the sleeve. When the first active bevel gear is engaged with the first driven bevel gear, the second active bevel gear is separated from the second driven bevel gear, and the first driven bevel gear rotates; when the second active bevel gear is engaged with the second driven bevel gear, the first active bevel gear is separated from the first driven bevel gear, and the second driven bevel gear rotates. One motor can respectively drive the liquid receiving pan and the blast pipe to rise and fall, which is energy-saving and environmentally friendly, and is in line with the concept of sustainable development.

[0027] Optional: The adjustment component includes a first electromagnet located on one side of the sleeve on the output shaft, and a first electromagnet is also provided at the end of the sleeve. The two first electromagnets attract each other when energized. A second electromagnet is provided on the other side of the sleeve on the output shaft, and a second electromagnet is also provided at the other end of the sleeve. The two second electromagnets attract each other when energized. The controller is electrically connected to the first electromagnet and the second electromagnet.

[0028] By adopting the above technical solution, when the two first electromagnets are energized, the two first electromagnets are attracted together, and the first driving bevel gear is meshed with the first driven bevel gear; when the two second electromagnets are energized, the two second electromagnets are attracted together, and the second driving bevel gear is meshed with the second driven bevel gear, which makes adjustment convenient and flexible, and fixation stable.

[0029] In a second aspect, the present application provides a continuous distillation process of a continuous distillation device, comprising the following steps:

[0030] S1: When the tower body is in operation, the liquid receiving tray is adjusted to the bottom of the packing column, and the liquid receiving tray monitors in real time whether wall flow occurs in the tower body;

[0031] S2: When the liquid receiving tray detects a wall flow phenomenon, the motor drives the liquid receiving tray to rise, and the liquid receiving tray measures the wall flow height;

[0032] S3: After the liquid receiving tray measures the wall flow height, the motor drives the liquid receiving tray to descend to the bottom of the packing column, and the motor drives the blast pipe to rise to the wall flow height, and the blast pipe blows air into the tower body.

[0033] In summary, this application has the following beneficial effects:

[0034] 1. After the liquid receiving tray detects the wall flow height, the blast pipe performs local blasting at the wall flow height, causing the liquid in the packing column to move inward, thereby balancing the outward and inward movement trends of the liquid. Without increasing the height of the packing column, the wall flow phenomenon is effectively solved, production efficiency is improved, and production costs are reduced.

[0035] 2. Under the regulation of the two first electromagnets and the two second electromagnets, one motor can drive the liquid receiving tray and the blast pipe to rise and fall respectively, which has low cost, low energy consumption, energy saving and environmental protection, and is consistent with the concept of sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0037] Figure 2 This is a partial cross-sectional view of the tower body of an embodiment of the present application;

[0038] Figure 3 This is an embodiment of the present application Figure 1 Enlarged view of point A in the middle.

[0039] Description of reference numerals:

[0040] 1. Tower body; 11. Liquid receiving tray; 12. Liquid receiving port; 13. Liquid leakage port; 14. Liquid level sensor; 2. Packing column; 21. Blower pipe; 22. Blower port; 23. One-way cover; 24. Controller; 31. First screw; 32. First driven bevel gear; 33. Second screw; 34. Second driven bevel gear; 35. Motor; 36. Output shaft; 37. Sleeve; 38. First driving bevel gear; 39. Second driving bevel gear; 41. First electromagnet; 42. Second electromagnet; 51. Support plate; 52. Third slide; 53. Support block. DETAILED DESCRIPTION

[0041] The present application is further described in detail below with reference to the accompanying drawings.

[0042] This embodiment: a continuous distillation device, referring to Figure 1 and Figure 2 , including: a tower body 1 and a packing column 2 installed near the middle of the tower body 1, the tower body 1 is provided with a detection device for detecting wall flow phenomenon, and the tower body 1 is provided with a guide device for making the liquid in the packing column 2 flow toward the central axis of the packing column 2.

[0043] During the operation of the tower body 1, when the detection device detects the occurrence of wall flow in the tower body 1, the guide device starts to work, and the guide device causes the liquid in the packing column 2 to have an inward movement trend, thereby balancing the outward movement trend of the liquid and the inward movement trend, and the liquid falls vertically. Without increasing the height of the packing column 2, the wall flow problem is effectively solved, the production efficiency is improved, and the production cost is reduced.

[0044] Among them, in the horizontal direction, a predetermined gap is left between the tower body 1 and the packing column 2, and the width of the gap is preferably 10cm-15cm. The detection device includes a liquid receiving tray 11 that slides vertically between the tower body 1 and the packing column 2. The outer side of the packing column 2 is provided with a first slide groove for the liquid receiving tray 11 to slide. The liquid receiving tray 11 is annular, and the side of the liquid receiving tray 11 close to the packing column 2 abuts against the outer wall of the packing column 2. The top of the liquid receiving tray 11 is provided with a liquid receiving port 12, and the bottom of the liquid receiving tray 11 is provided with an array of liquid leakage ports 13. The leakage ports 13 are circular and have a diameter of 1-2mm. A liquid level sensor 14 is installed at a predetermined height in the liquid receiving tray 11. There is no specific requirement for the height of the liquid level sensor 14, as long as it does not touch the bottom wall of the liquid receiving tray 11. When wall flow occurs, the liquid in the packing column 2 will flow into the liquid receiving tray 11. The presence of wall flow can be determined based on the liquid level height in the liquid receiving tray 11.

[0045] The flow-guiding device includes a support plate 51 that slides vertically onto the outside of the tower body 1, located at the packing column 2. A second chute is provided on the outside of the tower body 1 for the support plate 51 to slide. A blast tube 21, connected to the air source, is mounted on the outside of the support plate 51. Both the support plate 51 and the blast tube 21 are annular. The tower body 1 is hollowed out near the packing column 2. Blast ports 22 are equidistantly arranged horizontally on the side of the blast tube 21 near the tower body 1, connecting to the interior of the tower body 1. The airflow generated by the air source passes through the blast tube 21 and enters the packing column 2, effectively resolving the wall flow problem.

[0046] A one-way cover 23 is hinged at the blast port 22 on the outside of the blast pipe 21 through a torsion spring. The one-way cover 23 can only be flipped in the direction away from the blast pipe 21. When the air source is started, the one-way cover 23 opens under the impact of the air flow; when the air source is turned off, the one-way cover 23 closes.

[0047] In addition, the tower body 1 is provided with a driving mechanism for respectively driving the liquid receiving tray 11 and the blast pipe 21 to rise and fall. The tower body 1 is provided with a controller 24, wherein the controller 24 is electrically connected to the liquid level sensor 14, the air source, and the driving mechanism.

[0048] It should be noted that when the tower body 1 is in operation, the liquid receiving tray 11 needs to be adjusted to the bottom of the packing column 2. When the water vapor in the tower body 1 enters the liquid receiving tray 11, it may turn into small water droplets and condense on the inner wall of the liquid receiving tray 11. However, at this time, the water inlet rate is much smaller than the water outlet rate, and the small water droplets can be discharged in time, and the liquid level in the liquid receiving tray 11 will not rise.

[0049] When wall flow occurs, the liquid in packing column 2 flows along the outer wall of packing column 2, through liquid receiving port 12, and into liquid receiving pan 11. At this point, the water inflow rate exceeds the water outflow rate, causing the liquid level in receiving pan 11 to rise. When the liquid level reaches liquid level sensor 14, sensor 14 transmits a signal to controller 24, which, under the control of controller 24, causes the drive mechanism to slowly raise receiving pan 11. When receiving pan 11 exceeds the wall flow height, no further liquid enters the receiving pan 11, and the liquid level drops, thereby determining the wall flow height.

[0050] After detecting the wall flow height, the drive mechanism drives the liquid receiving tray 11 down to the bottom of the packing column 2. The drive mechanism drives the blast pipe 21 up to the wall flow height, and the air source is activated. The airflow generated by the air source sequentially passes through the blast pipe 21 and the blast port 22 and blows onto the packing column 2, causing the liquid in the packing column 2 to move inward, effectively solving the wall flow problem.

[0051] Reference Figure 2 and Figure 3 , wherein the driving mechanism includes a power component, a first transmission component, a second transmission component and an adjustment component. Under the adjustment of the adjustment component, when the power of the power component acts on the first transmission component, the power component drives the liquid receiving tray to rise and fall; when the power of the power component acts on the second transmission component, the power component drives the blower pipe to rise and fall. The controller is electrically connected to the power component and the adjustment component.

[0052] The power assembly includes a motor 35 fixedly mounted on the bottom of the tower body 1. The output shaft 36 of the motor 35 is in a horizontal state. A third sliding groove 52 is provided on the output shaft 36 along the axial direction of the output shaft 36. A sleeve 37 is slidably connected to the third sliding groove 52. A first driving bevel gear 38 is welded to one end of the sleeve 37, and a second driving bevel gear 39 is welded to the other end of the sleeve 37. The output shaft 36, the first driving bevel gear 38 and the second driving bevel gear 39 are coaxial.

[0053] The adjustment assembly includes a first electromagnet 41 welded to the end of the third chute 52. A first electromagnet 41 is also welded to the end of the sleeve 37. When energized, the two first electromagnets 41 attract each other. A second electromagnet 42 is welded to the other end of the third chute 52. The second electromagnet 42 is also welded to the other end of the sleeve 37. When energized, the two second electromagnets 42 attract each other. The controller 24 is electrically connected to the first and second electromagnets 41, 42, and the motor 35.

[0054] The first transmission assembly includes a first screw rod 31 that is vertically rotatably connected to the inside of the tower body 1. A support block 53 is fixedly connected to the liquid receiving pan 11. The first screw rod 31 passes through the support block 53 and is threadedly connected to the support block 53. A first driven bevel gear 32 that meshes with the first driving bevel gear 38 is welded to the bottom of the first screw rod 31. The second transmission assembly includes a second screw rod 33 that is vertically rotatably connected to the outside of the tower body 1. The second screw rod 33 passes through the support plate 51 and is threadedly connected to the support plate 51. A second driven bevel gear 34 that meshes with the second driving bevel gear 39 is welded to the bottom of the second screw rod 33.

[0055] When the two first electromagnets 41 are energized, the two first electromagnets 41 are attracted together, the first driving bevel gear 38 is meshed with the first driven bevel gear 32, the motor 35 is started, the output shaft 36 rotates, and under the transmission action of the sleeve 37, the first driving bevel gear 38 and the first driven bevel gear 32, the first screw rod 31 rotates, and the liquid receiving tray 11 rises and falls.

[0056] When power is supplied to the two second electromagnets 42, they attract each other, the second driving bevel gear 39 meshes with the second driven bevel gear 34, the motor 35 is activated, the output shaft 36 rotates, and the second screw rod 33 rotates under the transmission action of the sleeve 37, the second driving bevel gear 39, and the second driven bevel gear 34, thereby raising and lowering the blast tube 21. A single motor 35 can drive the liquid receiving pan 11 and the blast tube 21, reducing costs and energy consumption, achieving energy conservation and environmental protection, and aligning with the concept of sustainable development.

[0057] The operating principle of a continuous distillation apparatus according to an embodiment of the present application is as follows: When the tower body 1 is in operation, the liquid receiving tray 11 is located at the bottom of the packing column 2. When the liquid level reaches the liquid level sensor 14, a wall flow phenomenon is observed. Under the control of the controller 24, the two first electromagnets 41 are energized, the first driving bevel gear 38 engages with the first driven bevel gear 32, and the motor 35 drives the liquid receiving tray 11 to slowly rise. After the wall flow height is detected, the liquid receiving tray 11 descends to the bottom of the packing column 2. Under the control of the controller 24, the two second electromagnets 42 are energized, the second driving bevel gear 39 engages with the second driven bevel gear 34, and the motor 35 drives the blast pipe 21 to the wall flow height. The air source is activated, and the air flow generated by the air source blows onto the packing column 2, causing the liquid in the packing column 2 to move inward, thereby achieving a balance between the outward and inward movement trends of the liquid. This effectively solves the wall flow phenomenon without increasing the height of the packing column 2, improving production efficiency and reducing production costs.

[0058] The present application also discloses a continuous distillation process of a continuous distillation device, comprising the following steps:

[0059] S1: When the tower body 1 is in operation, the liquid receiving tray 11 is adjusted to the bottom of the packing column 2, and the liquid receiving tray 11 monitors in real time whether wall flow occurs in the tower body 1;

[0060] S2: When the liquid receiving tray 11 detects the wall flow phenomenon, the motor 35 drives the liquid receiving tray 11 to rise, and the liquid receiving tray 11 measures the wall flow height;

[0061] S3: After the liquid receiving tray 11 measures the wall flow height, the motor 35 drives the liquid receiving tray 11 to descend to the bottom of the packing column 2, and the motor 35 drives the blast pipe 21 to rise to the wall flow height, and the blast pipe 21 blows air into the tower body 1.

[0062] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A continuous distillation device, characterized in that: include: A tower body (1) and a packing column (2) arranged in the tower body (1), wherein the tower body (1) is provided with a detection device for detecting a wall flow phenomenon, and the tower body (1) is provided with a flow guiding device for causing the liquid in the packing column (2) to flow toward the central axis of the packing column (2), and when the detection device detects that a wall flow phenomenon occurs in the tower body (1), the flow guiding device starts to operate; A predetermined gap is left between the tower body (1) and the packing column (2), and the detection device includes a liquid receiving tray (11) provided between the tower body (1) and the packing column (2), the liquid receiving tray (11) is located at the bottom of the packing column (2), and the side of the liquid receiving tray (11) close to the packing column (2) abuts against the packing column (2), a liquid receiving port (12) is provided at the top of the liquid receiving tray (11), a liquid leakage port (13) is provided at the bottom of the liquid receiving tray (11), and a liquid level sensor (14) is provided at a predetermined height in the liquid receiving tray (11); The flow guide device comprises a blast pipe (21) arranged around the outside of the tower body (1) and connected to the air source, the blast pipe (21) being located at the packing column (2), blast ports (22) being equidistantly provided on a side of the blast pipe (21) close to the tower body (1), the blast ports (22) being connected to the inside of the tower body (1), a one-way cover plate (23) being hingedly connected to the blast port (22) on the blast pipe (21), a controller (24) being provided on the tower body (1), the controller (24) being electrically connected to the liquid level sensor (14) and the air source; The liquid receiving tray (11) and the blast pipe (21) are both slidably connected to the tower body (1) along the axial direction of the tower body (1). A driving mechanism for driving the liquid receiving tray (11) and the blast pipe (21) to rise and fall is provided on the tower body (1), and the controller (24) is electrically connected to the driving mechanism.

2. A continuous distillation device according to claim 1, characterized in that: The driving mechanism includes a power component, a first transmission component, a second transmission component and an adjustment component. Under the adjustment of the adjustment component, when the power of the power component acts on the first transmission component, the power component drives the liquid receiving tray to rise and fall; when the power of the power component acts on the second transmission component, the power component drives the blower pipe to rise and fall. The controller is electrically connected to the power component and the adjustment component.

3. A continuous distillation device according to claim 2, characterized in that: The first transmission assembly comprises a first screw rod (31) vertically rotatably connected to the tower body (1); the first screw rod (31) passes through the liquid receiving tray (11) and is threadedly connected to the liquid receiving tray (11); a first driven bevel gear (32) is provided at the end of the first screw rod (31).

4. A continuous distillation device according to claim 3, characterized in that: The second transmission assembly comprises a second screw rod (33) vertically rotatably connected to the outside of the tower body (1); the second screw rod (33) passes through the blast pipe (21) and is threadedly connected to the blast pipe (21); a second driven bevel gear (34) is provided at the end of the second screw rod (33).

5. A continuous distillation device according to claim 4, characterized in that: The power assembly comprises a motor (35) provided on the tower body (1); a sleeve (37) is slidably connected to an output shaft (36) of the motor (35) along the axial direction of the output shaft (36); a first driving bevel gear (38) meshing with a first driven bevel gear (32) is provided on the sleeve (37); a second driving bevel gear (39) meshing with a second driven bevel gear (34) is provided on the sleeve (37); and the controller (24) is electrically connected to the motor (35).

6. A continuous distillation device according to claim 5, characterized in that: The adjustment component includes a first electromagnet (41) provided on the output shaft (36) and located on one side of the sleeve (37), and a first electromagnet (41) is also provided at the end of the sleeve (37). The two first electromagnets (41) attract each other when energized. A second electromagnet (42) is provided on the output shaft (36) and located on the other side of the sleeve (37). The other end of the sleeve (37) is also provided with a second electromagnet (42). The two second electromagnets (42) attract each other when energized. The controller (24) is electrically connected to the first electromagnet (41) and the second electromagnet (42).

7. A continuous distillation process using a continuous distillation device according to claim 5 or 6, characterized in that: The following steps are involved: S1: When the tower body (1) is in operation, the liquid receiving tray (11) is adjusted to the bottom of the packing column (2), and the liquid receiving tray (11) monitors in real time whether a wall flow phenomenon occurs in the tower body (1); S2: When the liquid receiving tray (11) detects a wall flow phenomenon, the motor (35) drives the liquid receiving tray (11) to rise, and the liquid receiving tray (11) measures the wall flow height; S3: After the liquid receiving tray (11) measures the wall flow height, the motor (35) drives the liquid receiving tray (11) to descend to the bottom of the packing column (2), and the motor (35) drives the blast pipe (21) to rise to the wall flow height, and the blast pipe (21) blows air into the tower body (1).

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