Tower plate assembly of rectifying tower for ionic liquid

By designing a distillation column tray assembly for ionic liquids with positioning plates, trays, connecting plates, and cam structures, the problems of uneven liquid distribution and retention were solved, the separation efficiency and stability were improved, and the application fields of ionic liquids were expanded.

CN224071201UActive Publication Date: 2026-04-03FUSHUN DONGKE FINE CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional distillation column tray assemblies suffer from uneven liquid distribution and liquid retention when processing ionic liquids, affecting separation efficiency and stability and limiting the application of ionic liquids in a wider range of fields.

Method used

Design a distillation column tray assembly for ionic liquids, which adopts a structure of positioning plate, tray, connecting plate, cam and motor. The cam drives the tray to vibrate to promote uniform liquid distribution and avoid stagnation. The tray can be tilted and disassembled for easy replacement.

Benefits of technology

This achieves uniform distribution of ionic liquids and reduces retention, improving separation efficiency and process stability, and expanding the application range of ionic liquids.

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Abstract

The utility model discloses a tower plate assembly of a rectifying tower for ionic liquid, which comprises a positioning plate, the inner side of the positioning plate is provided with a plurality of groove-shaped structures, the groove-shaped structures are internally provided with a plurality of connecting shafts, the outer sides of the connecting shafts are rotatably connected with tower plates, and the upper surfaces of the tower plates are provided with liquid collecting screen plates; one end, far away from the positioning plate, of the tower plate is rotationally connected with a connecting plate; a mounting plate is mounted on the outer side of the connecting plate; a cam mounted in the mounting plate is arranged on one side of the connecting plate, and one side of the cam is connected with a motor mounted in the positioning plate. The device at least has the following beneficial effects that the cam can intermittently drive one end of the tower plate to move downwards, so that the tower plate vibrates, liquid retained on the surface and the inner side of the tower plate is conveniently vibrated and falls, the liquid is prevented from being retained on the surface and the inner side of the tower plate for a long time, and meanwhile, the liquid is conveniently and uniformly distributed on the surface of the tower plate.
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Description

Technical Field

[0001] This application relates to the field of distillation column technology, specifically to a distillation column tray assembly for ionic liquids. Background Technology

[0002] In chemical separation technology, distillation columns are highly efficient and widely used equipment, particularly suitable for the separation and purification of ionic liquids. Due to their unique physicochemical properties, ionic liquids exhibit enormous application potential in fields such as chemical engineering, materials science, and environmental science.

[0003] Existing technology discloses a high-efficiency distillation column tray assembly, disposed within a distillation column shell. This tray assembly includes multiple trays, designated as first and second trays, arranged parallel to each other within the distillation column shell. Two baffles, designated as first and second, are connected to the upper sides of each tray, with the second baffle being higher than the first baffle. An inlet weir is formed between the outer side of the first baffle and the inner wall of the distillation column shell, and an overflow weir is formed between the outer side of the second baffle and the inner wall of the distillation column shell. A downcomer is connected below the overflow weir, leading to the inlet weir of the lower tray. A level plate is connected between the outer side of the downcomer and the first tray. The second tray is connected between the first and second baffles. Compared to existing technologies, this high-efficiency distillation column tray assembly, with its double-layer tray configuration, reduces the gas rising velocity. Simultaneously, the baffle height of the overflow weir is slightly higher than the inlet weir height, slowing down liquid flow and allowing for more thorough liquid-gas contact, thus improving separation efficiency.

[0004] However, traditional distillation column tray assemblies often face problems such as uneven liquid distribution and liquid retention when processing ionic liquids. These problems not only affect the stability and efficiency of the distillation process, but also limit the application of ionic liquids in a wider range of fields. Utility Model Content

[0005] Therefore, this application provides a distillation column tray assembly for ionic liquids to solve the problems of uneven liquid distribution and liquid retention in the prior art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A distillation column tray assembly for ionic liquids, comprising:

[0008] A positioning plate, wherein a plurality of groove-shaped structures are provided on the inner side of the positioning plate, and a plurality of connecting shafts are installed in the groove-shaped structures. A tower plate is rotatably connected to the outer side of the connecting shafts, and a liquid collection mesh plate is installed on the upper surface of the tower plate.

[0009] The end of the tray away from the positioning plate is rotatably connected to a connecting plate, and several tray units are rotatably connected to the outside of the connecting plate. An installation plate is installed on the outside of the connecting plate, and the connecting plate and the installation plate are slidably connected.

[0010] One side of the connecting plate is provided with a cam installed in the mounting plate, and one side of the cam is connected to a motor installed in the positioning plate.

[0011] Furthermore, the tower plate is inclined.

[0012] Furthermore, the end of the tower plate facing the connecting shaft is open.

[0013] Furthermore, the lower side of the liquid collecting mesh plate is provided with liquid guiding holes that are equally spaced within the tower plate.

[0014] Furthermore, a limiting rod is provided on the lower side of the tower plate and installed in the groove structure inside the positioning plate, and a limiting block is slidably connected to the outer side of the limiting rod.

[0015] Furthermore, a spring is installed on the outer side of the limiting rod.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] 1. The cam can intermittently move one end of the tray downwards, thereby vibrating the tray. This helps to shake off the liquid that remains on the surface and inside of the tray, preventing it from remaining for a long time and ensuring that the liquid is evenly distributed on the tray surface.

[0018] 2. The tray has an opening on one side, which facilitates disassembly and replacement. Attached Figure Description

[0019] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0020] Figure 1 A front cross-sectional view of a distillation column tray assembly for ionic liquids provided in this application;

[0021] Figure 2 Provided for this application Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a side view of the cam structure of a distillation column tray assembly for ionic liquids provided in this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Positioning plate; 2. Tray; 3. Mounting plate; 4. Connecting plate; 5. Cam; 6. Motor; 7. Liquid guide hole; 8. Liquid collection screen plate; 9. Connecting shaft; 10. Limiting rod; 11. Limiting block. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention provides a distillation column tray assembly for ionic liquids, including a positioning plate 1. The inner side of the positioning plate 1 is provided with a plurality of groove-shaped structures, and a plurality of connecting shafts 9 are installed in the groove-shaped structures. The outer side of the connecting shafts 9 is rotatably connected to a column tray 2, and the column tray 2 is inclined. A liquid collecting mesh plate 8 is installed on the upper surface of the column tray 2 to facilitate the permeation of ionic liquid. The lower side of the liquid collecting mesh plate 8 is provided with liquid guiding holes 7 that are equally spaced in the column tray 2, so that the liquid flowing downward from the liquid collecting mesh plate 8 can be discharged downward as soon as possible and avoid stagnating in the column tray 2 for a long time.

[0027] A limiting rod 10 is installed in the groove structure inside the positioning plate 1 on the lower side of the tower plate 2, and a spring is installed on the outer side of the limiting rod 10. A limiting block 11 is slidably connected to the outer side of the limiting rod 10. The limiting block 11 is supported by the spring on the outer side of the limiting rod 10, so that the tower plate 2 can be kept in an inclined state when it is not subjected to other external forces.

[0028] The end of the tray 2 facing the connecting shaft 9 is open, which facilitates the separation of the tray 2 from the connecting shaft 9, thus making it easy to disassemble the tray 2.

[0029] A connecting plate 4 is rotatably connected to the end of the tray 2 away from the positioning plate 1, and several individual trays 2 are rotatably connected to the outside of the connecting plate 4. An mounting plate 3 is installed on the outside of the connecting plate 4, and the connecting plate 4 and the mounting plate 3 form a sliding connection, so that the tilt angle of the tray 2 can be adjusted.

[0030] A cam 5 is installed in the mounting plate 3 on one side of the connecting plate 4, and one side of the cam 5 is connected to the motor 6 installed in the positioning plate 1, so that the motor 6 can drive the cam 5 to rotate. The longitudinal section of the cam 5 is teardrop-shaped, so that the cam 5 can intermittently drive one end of the tower plate 2 to move downward during rotation, thereby causing the tower plate 2 to vibrate, which facilitates the vibration of the liquid retained on the surface and inside of the tower plate 2, causing it to fall off.

[0031] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A tray assembly for a distillation column for ionic liquids, characterized in that Include: Positioning plate (1), the inner side of the positioning plate (1) is provided with a plurality of slot structures, and a plurality of connecting shafts (9) are installed in the slot structures, the outer side of the connecting shaft (9) is rotatably connected with a tower plate (2), the upper surface of the tower plate (2) is installed with a liquid collecting mesh plate (8); The end of the tower plate (2) away from the positioning plate (1) is rotatably connected with a connecting plate (4), and the outer side of the connecting plate (4) is rotatably connected with a plurality of tower plate (2) monomers, the outer side of the connecting plate (4) is installed with a mounting plate (3), and the connecting plate (4) and the mounting plate (3) are slidably connected; One side of the connecting plate (4) is provided with a cam (5) installed in the mounting plate (3), and one side of the cam (5) is connected with a motor (6) installed in the positioning plate (1).

2. A tray assembly for a distillation column for ionic liquids according to claim 1, wherein, The tower plate (2) is arranged obliquely.

3. The tray assembly of claim 1, wherein, The end of the tower plate (2) towards the connecting shaft (9) is arranged as an opening.

4. The tray assembly of claim 1, wherein the tray assembly is configured to be used in a distillation column for separating an ionic liquid from a mixture comprising the ionic liquid and a contaminant. The lower side of the liquid collecting mesh plate (8) is provided with a liquid guiding hole (7) which is equally spaced and opened in the tower plate (2).

5. The tray assembly of claim 1, wherein the tray assembly is configured to be used in a distillation column for separating an ionic liquid from a mixture of the ionic liquid and a solvent. The lower side of the tower plate (2) is provided with a limiting rod (10) installed in the slot structure in the positioning plate (1), and the outer side of the limiting rod (10) is slidably connected with a limiting block (11).

6. An ion liquid rectification column tray assembly according to claim 5, wherein, The outer side of the limiting rod (10) is installed with a spring.