An ionic liquid pre-purification device

Abstract

An ionic liquid pre-purification device, relating to the field of ionic liquid purification, includes an adsorption mechanism and a centrifugal filtration mechanism. The adsorption mechanism comprises a feeding hopper, an adsorption bed, and a discharge cylinder. The discharge cylinder is located at the bottom of the feeding hopper, and the adsorption bed is located inside the discharge cylinder. The centrifugal filtration mechanism is located at the bottom of the discharge cylinder and includes a centrifuge cylinder, a filter screen, and a receiving tray. The feed end of the centrifuge cylinder is rotatably connected to the bottom of the discharge cylinder. The receiving tray is located at the bottom of the centrifuge cylinder, and the filter screen is located inside the centrifuge cylinder. This invention continuously adsorbs the ionic liquid in the feeding hopper through the adsorption bed in the discharge hopper. The ionic liquid flows downwards along the adsorption bed under gravity. The adsorbed ionic liquid enters the centrifuge cylinder and is continuously centrifuged. The ionic liquid undergoes secondary filtration through the filter screen in the centrifuge cylinder, effectively removing adsorbed impurities from the ionic liquid and reducing residual contamination from adsorbed impurities in later stages.

Description

Technical Field

[0001] This utility model relates to the field of ionic liquid purification technology, and in particular to an ionic liquid pre-purification device. Background Technology

[0002] Ionic liquids are a class of low-temperature molten salts composed of organic cations and inorganic or organic anions. They possess characteristics such as extremely low vapor pressure, wide liquid range, and high designability, making them widely used in catalysis, extraction, and material synthesis. However, impurities such as raw material residues and byproducts are easily introduced during the preparation of ionic liquids. These impurities can reduce their performance stability and affect subsequent application results. Therefore, pre-purification of ionic liquids is a crucial step in ensuring their industrial application.

[0003] Currently, the pre-purification of ionic liquids mostly employs traditional processes such as distillation and extraction. However, these processes are not very effective at removing adsorbed impurities from the system. These adsorbed impurities often form strong interactions with ionic liquids, easily adhering to the surface of ionic liquid molecules or internal pores. Traditional processes are difficult to completely separate them, resulting in insufficient purity of the ionic liquid after pre-purification. This, in turn, increases the difficulty and cost of subsequent purification, hindering the industrialization of ionic liquids. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the first objective of this utility model is to provide an ionic liquid pre-purification device that effectively removes adsorbent impurities from ionic liquids and reduces residual contamination from adsorbent impurities in the later stages.

[0006] To achieve the above objectives, the first aspect of this utility model provides an ionic liquid pre-purification device, comprising an adsorption mechanism and a centrifugal filtration mechanism. The adsorption mechanism includes a feeding hopper, an adsorption bed, and a discharge cylinder. The discharge cylinder is located at the bottom of the feeding hopper, the adsorption bed is located inside the discharge cylinder, and the centrifugal filtration mechanism is located at the bottom of the discharge cylinder, comprising a centrifuge cylinder, a filter screen, and a receiving tray. The feed end of the centrifuge cylinder is rotatably connected to the bottom of the discharge cylinder, the receiving tray is located at the bottom of the centrifuge cylinder, and the filter screen is located inside the centrifuge cylinder.

[0007] Furthermore, a support is provided on the receiving tray, and a feed cylinder rotating seat is provided on the top of the support, with the feed cylinder rotatably disposed inside the feed cylinder rotating seat.

[0008] Furthermore, a drive motor is provided on the support, a drive gear is provided on the output shaft of the drive motor, and a driven gear is provided on the circumferential wall of the centrifuge cylinder, the driven gear meshing with the drive gear.

[0009] Furthermore, a centrifuge drum rotating seat is provided on the top of the receiving tray, the centrifuge drum is rotatably disposed inside the centrifuge drum rotating seat, the filter screen is a cylindrical structure, the top of the filter screen is connected to the bottom of the feeding drum, and the bottom edge of the centrifuge drum is provided with a discharge port.

[0010] Furthermore, the bottom of the receiving tray has an inverted conical structure, and a discharge port is provided at the middle of the bottom of the receiving tray.

[0011] Furthermore, the adsorption bed is provided with adsorption particles.

[0012] Beneficial effects: This utility model uses an adsorption bed in the hopper to continuously adsorb the ionic liquid in the feed hopper. The ionic liquid flows downward along the adsorption bed under gravity. After being adsorbed, the ionic liquid enters the centrifuge and is continuously centrifuged. The ionic liquid is then filtered twice through the filter screen in the centrifuge, which fully removes the adsorbed impurities in the ionic liquid and reduces the residual pollution from adsorbed impurities in the later stage.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of an ionic liquid pre-purification device according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the ionic liquid pre-purification apparatus according to an embodiment of the present invention from another perspective;

[0017] Figure 3 This is a cross-sectional view of an ionic liquid pre-purification apparatus according to an embodiment of the present invention.

[0018] As shown in the figure: 1. Adsorption mechanism; 11. Feed hopper; 12. Adsorption bed; 13. Feeding cylinder; 2. Support; 21. Feeding cylinder rotating seat; 3. Drive motor; 31. Drive gear; 4. Centrifugal filtration mechanism; 41. Centrifuge cylinder; 42. Driven gear plate; 43. Receiving tray; 431. Discharge port; 432. Centrifuge cylinder rotating seat; 44. Filter screen; 45. Throwing outlet. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The ionic liquid pre-purification apparatus of this utility model is described below with reference to the accompanying drawings.

[0021] like Figures 1-3 As shown, the ionic liquid pre-purification device provided in this embodiment of the present invention includes an adsorption mechanism 1 and a centrifugal filtration mechanism 4. The adsorption mechanism 1 includes a feeding hopper 11, an adsorption bed 12 and a discharge cylinder 13. The discharge cylinder 13 is disposed at the bottom of the feeding hopper 11 and the adsorption bed 12 is disposed inside the discharge cylinder 13.

[0022] The centrifugal filtration mechanism 4 is located at the bottom of the feeding cylinder 13 and includes a centrifugal cylinder 41, a filter screen 44 and a receiving tray 43. The feeding end of the centrifugal cylinder 41 is rotatably connected to the bottom of the feeding cylinder 13, the receiving tray 43 is located at the bottom of the centrifugal cylinder 41, and the filter screen 44 is located inside the centrifugal cylinder 41.

[0023] Specifically, in use, the ionic liquid pre-purification device of this application first places the ionic liquid in the feeding hopper 11. The ionic liquid flows continuously downward along the adsorption bed 12 under gravity. The adsorption bed 12 continuously adsorbs the ionic liquid in the feeding hopper 11. The adsorbed ionic liquid then enters the centrifuge cylinder 41 and is continuously centrifuged in the centrifuge cylinder 41. The ionic liquid is then filtered twice by the filter screen 44 in the centrifuge cylinder 41. Finally, the processed ionic liquid is collected in the receiving tray 43. This process fully removes adsorbed impurities from the ionic liquid and reduces the residual contamination from adsorbed impurities in the later stages.

[0024] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, a support 2 is provided on the receiving tray 43, and a feed cylinder rotary seat 21 is provided on the top of the support 2. The feed cylinder 13 is rotatably disposed inside the feed cylinder rotary seat 21.

[0025] A drive motor 3 is mounted on the support 2, and a drive gear 31 is mounted on the output shaft of the drive motor 3. A driven gear 42 is mounted on the circumferential wall of the centrifuge cylinder 41. The driven gear 42 meshes with the drive gear 31, thereby driving the centrifuge cylinder 41 to rotate through the drive motor 3.

[0026] In one embodiment of this utility model, such as Figure 3As shown, a centrifuge drum rotor 432 is provided on the top of the receiving tray 43, and the centrifuge drum 41 is rotatably disposed inside the centrifuge drum rotor 432. The filter screen 44 has a cylindrical structure, and the top of the filter screen 44 is connected to the bottom of the feeding drum 13. The bottom edge of the centrifuge drum 41 is provided with a throwing outlet 45.

[0027] Specifically, after the ionic liquid enters the centrifuge cylinder 41, it rotates at high speed through the centrifuge cylinder 41. The ionic liquid is subjected to centrifugal force and passes through the filter screen 44. Impurities are intercepted by the filter screen 44. The ionic liquid after secondary filtration enters the receiving tray 43 through the discharge port 45 for collection.

[0028] In one embodiment of this utility model, such as Figure 3 As shown, the bottom of the receiving tray 43 has an inverted conical structure, and a discharge port 431 is provided in the middle of the bottom of the receiving tray 43, which is conducive to the centralized collection of ionic liquid in the receiving tray 43.

[0029] In one embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the adsorption bed 12 is equipped with adsorption particles. The adsorption particles are used to adsorb adsorbable impurities in the ionic liquid. The material can be activated carbon adsorption particles or organic / inorganic chemical adsorption materials.

[0030] To clearly illustrate the above embodiments, refer to Figures 1-3 The specific working principle of the ionic liquid pre-purification device of this utility model is as follows: First, the ionic liquid is placed in the feeding hopper 11. The ionic liquid flows continuously downward along the adsorption bed 12 under gravity. The adsorption bed 12 continuously adsorbs the ionic liquid in the feeding hopper 11. The adsorbed ionic liquid then enters the centrifuge cylinder 41. The drive motor 3 drives the drive gear 31 to rotate. The drive gear 31 meshes with the driven gear outside the centrifuge cylinder 41, thereby driving the centrifuge cylinder 41 to rotate at high speed.

[0031] After being continuously centrifuged by the centrifuge tube 41, the ionic liquid is subjected to centrifugal force and passes through the filter screen 44. Impurities are intercepted by the filter screen 44. The ionic liquid after secondary filtration enters the receiving tray 43 through the discharge port 45 for collection. This fully removes adsorbed impurities from the ionic liquid and reduces the residual contamination from adsorbed impurities in the later stages.

[0032] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An ionic liquid pre-purification device, characterized in that, It includes an adsorption mechanism (1) and a centrifugal filtration mechanism (4), wherein the adsorption mechanism (1) includes a feeding hopper (11), an adsorption bed (12) and a discharge cylinder (13), the discharge cylinder (13) is located at the bottom of the feeding hopper (11), and the adsorption bed (12) is located inside the discharge cylinder (13); The centrifugal filtration mechanism (4) is located at the bottom of the feeding cylinder (13) and includes a centrifugal cylinder (41), a filter screen (44) and a receiving tray (43). The feeding end of the centrifugal cylinder (41) is rotatably connected to the bottom of the feeding cylinder (13), the receiving tray (43) is located at the bottom of the centrifugal cylinder (41), and the filter screen (44) is located inside the centrifugal cylinder (41).

2. The ionic liquid pre-purification apparatus according to claim 1, characterized in that, The receiving tray (43) is provided with a support (2), and the top of the support (2) is provided with a feed cylinder rotating seat (21). The feed cylinder (13) is rotatably disposed inside the feed cylinder rotating seat (21).

3. The ionic liquid pre-purification apparatus according to claim 2, characterized in that, The support (2) is provided with a drive motor (3), the output shaft of the drive motor (3) is provided with a drive gear (31), and the circumferential wall of the centrifuge (41) is provided with a driven gear (42), which meshes with the drive gear (31).

4. The ionic liquid pre-purification apparatus according to claim 1, characterized in that, The receiving tray (43) is provided with a centrifuge drum rotating seat (432) on the top. The centrifuge drum (41) is rotatably disposed inside the centrifuge drum rotating seat (432). The filter screen (44) is a cylindrical structure. The top of the filter screen (44) is connected to the bottom of the feeding drum (13). The bottom edge of the centrifuge drum (41) is provided with a throwing outlet (45).

5. The ionic liquid pre-purification apparatus according to claim 1, characterized in that, The bottom of the receiving tray (43) is an inverted cone-shaped structure, and a discharge port (431) is provided in the middle of the bottom of the receiving tray (43).

6. The ionic liquid pre-purification apparatus according to claim 1, characterized in that, The adsorption bed (12) is provided with adsorption particles.

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