Intelligent multi-effect extractive distillation tower

Abstract

An intelligent multi-effect extractive distillation tower comprises a distillation tower body used for use, a support installed at the top of the distillation tower body and an installation plate arranged at one end of the support and further comprises a material mixing assembly, and the material mixing assembly is installed at the top end of the installation plate; the material mixing assembly comprises a material mixing box, a first rotating shaft, a second rotating shaft, stirring blades, an arc-shaped part and spraying holes, the material mixing box is fixed to the mounting plate, the first rotating shaft is transversely mounted at the top of the inner side of the material mixing box, the second rotating shaft is transversely mounted at the bottom of the inner side of the material mixing box, and stirring motors are mounted at one ends of the first rotating shaft and the second rotating shaft; a charging box is mounted on one side of the top end of the mixing box, a charging hopper is mounted at the top end of the charging box, a shunting column is mounted in the middle of the inner side of the mixing box, the top end of the shunting column is connected with the charging box, and a booster pump is mounted at the top end of the shunting column. The rectification is facilitated.

Description

Technical Field

[0001] This utility model relates to distillation columns, specifically an intelligent multi-effect extraction distillation column. Background Technology

[0002] Extractive distillation is similar to azeotropic distillation in that a third component (called an extractant or solvent) is added to the feed solution to change the relative volatility of the original components, thereby achieving separation. However, extractive distillation requires that the boiling point of the extractant be much higher than that of the components in the feed solution, and that it does not form an azeotrope with the components. Extractive distillation is often used to separate solutions in which the boiling points (volatility) of the components are very similar. The amount, quality, and temperature of the extractant have a significant impact on the separation effect and economy of extractive distillation. With in-depth research on extractive distillation technology, the effect of extractive distillation is better when several extractants are used in combination. However, existing extractive distillation columns do not have accurate control over the amount and temperature of the extractant, and multiple extractants cannot be well mixed.

[0003] To address this, an extractive distillation column with application number 201921339582.0 was developed, which can better solve the above-mentioned technical problems. However, when multiple extractants are mixed in existing multi-stage extractive distillation columns, the extractants are added only in one area, which results in poor uniformity of extractant mixing or long mixing time, which is not conducive to use. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an intelligent multi-effect extraction distillation column, which effectively solves the problem that when multiple extractants are mixed in the existing multi-stage extraction distillation column, the extractant is added only in one area, which results in poor uniformity of the extractant mixing or long mixing time, which is not conducive to use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a distillation column body for use, a support mounted on the top of the distillation column body and an mounting plate provided at one end of the support, and also includes a mixing assembly, wherein the mixing assembly is mounted on the top of the mounting plate;

[0006] The mixing assembly includes a mixing tank, a first rotating shaft, a second rotating shaft, stirring blades, a stirring motor, a feeding tank, a feeding hopper, a diverter column, a booster pump, a feeding pipe, a feeding pump, an arc-shaped section, and nozzles. The mixing tank is fixed on a mounting plate. The first rotating shaft is horizontally mounted on the top of the inner side of the mixing tank, and the second rotating shaft is horizontally mounted on the bottom of the inner side of the mixing tank. A stirring motor is mounted on one end of the first and second rotating shafts. The feeding tank is mounted on one side of the top of the mixing tank, and a feeding hopper is mounted on the top of the feeding tank. A diverter column is mounted in the middle of the inner side of the mixing tank, and the top of the diverter column is connected to the feeding tank. A booster pump is mounted on the top of the diverter column. A feeding pipe communicating with the distillation column body is provided at the bottom of one side of the mixing tank, and a feeding pump is mounted on the feeding pipe. Several nozzles are opened on the surface of the diverter column.

[0007] Preferably, both the surface of the first rotating shaft and the second rotating shaft are equipped with a plurality of stirring blades.

[0008] Preferably, the first and second rotating shafts are connected to the mixing tank via bearings.

[0009] Preferably, a filter screen is installed inside the feeding hopper.

[0010] Preferably, the diversion column is provided with an arc-shaped portion at the positions corresponding to the first and second rotating shafts.

[0011] Preferably, a disc-shaped heating tube is installed at the bottom of the inner side of the mixing box.

[0012] Beneficial Effects: In use, the extractant to be used is added to the inside of the feeding tank through the feeding hopper. After addition, the booster pump operates, pressurizing the extractant in the feeding tank and sending it into the distribution column. It is then sprayed out through the nozzles on the distribution column, allowing for relatively uniform spraying from the center of the mixing tank to the surrounding areas. This ensures the extractant is evenly added to the mixing tank for mixing. Simultaneously, the stirring motor operates, driving the first and second rotating shafts and stirring blades to rotate, thus stirring the materials in the mixing tank and improving mixing efficiency. After mixing, the feed pump operates, feeding the mixed extractant through the feed pipe into the distillation column for distillation. This invention has a novel structure and ingenious design, facilitating the mixing of multiple extractants, resulting in good mixing uniformity and high mixing efficiency, which is beneficial for distillation. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the mixing component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the diversion column structure of this utility model;

[0017] Labels in the diagram: 1. Distillation column body; 2. Support frame; 3. Mounting plate; 4. Mixing assembly; 5. Mixing tank; 6. First rotating shaft; 7. Second rotating shaft; 8. Stirring blade; 9. Stirring motor; 10. Feeding box; 11. Feeding hopper; 12. Diverter column; 13. Booster pump; 14. Feed pipe; 15. Feed pump; 16. Arc-shaped section; 17. Spray nozzle. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 The specific embodiments of this utility model will be described in further detail.

[0019] Example 1, by Figure 1-3 The present invention provides an intelligent multi-effect extraction distillation column, including a distillation column body 1 for use, a support 2 installed on the top of the distillation column body 1 and an installation plate 3 provided at one end of the support 2, and also includes a mixing component 4, with the mixing component 4 installed on the top of the installation plate 3.

[0020] The mixing assembly 4 includes a mixing tank 5, a first rotating shaft 6, a second rotating shaft 7, a stirring blade 8, a stirring motor 9, a feeding tank 10, a feeding hopper 11, a diverting column 12, a booster pump 13, a feeding pipe 14, a feeding pump 15, an arc-shaped section 16, and a spray nozzle 17. The mixing tank 5 is fixed on the mounting plate 3. The first rotating shaft 6 is horizontally mounted on the top inner side of the mixing tank 5, and the second rotating shaft 7 is horizontally mounted on the bottom inner side of the mixing tank 5. A stirring blade is installed at one end of the first rotating shaft 6 and the second rotating shaft 7. A mixing motor 9 is installed on one side of the top of the mixing tank 5. A feeding box 10 is installed on the top of the feeding box 10. A feeding hopper 11 is installed on the top of the feeding box 10. A diversion column 12 is installed in the middle of the inner side of the mixing tank 5. The top of the diversion column 12 is connected to the feeding box 10. A booster pump 13 is installed on the top of the diversion column 12. A feeding pipe 14 connected to the distillation column body 1 is provided at the bottom of one side of the mixing tank 5. A feeding pump 15 is installed on the feeding pipe 14. Several spray holes 17 are opened on the surface of the diversion column 12.

[0021] Example 2

[0022] In Embodiment 1, the first rotating shaft 6 and the second rotating shaft 7 are inconvenient to use; refer to... Figure 1 As another preferred embodiment, the difference from embodiment one is that a plurality of stirring blades 8 are installed on the surfaces of the first rotating shaft 6 and the second rotating shaft 7, which facilitates the use of the first rotating shaft 6 and the second rotating shaft 7.

[0023] Example 3

[0024] In Embodiment 1, the first rotating shaft 6 and the second rotating shaft 7 are inconvenient to install and use. (Refer to...) Figure 1 As another preferred embodiment, the difference from embodiment one is that the first rotating shaft 6 and the second rotating shaft 7 are connected to the mixing box 5 through bearings, which facilitates the installation and use of the first rotating shaft 6 and the second rotating shaft 7.

[0025] Example 4

[0026] In Example 1, the hopper 11 is inconvenient for filtration; refer to... Figure 1 As another preferred embodiment, the difference from embodiment one is that a filter screen is installed inside the feeding hopper 11 to facilitate filtration in the feeding hopper 11.

[0027] Example 5

[0028] In Embodiment 1, the flow divider column 12 is inconvenient to align with the first rotating shaft 6 and the second rotating shaft 7. (Refer to...) Figure 1 As another preferred embodiment, the difference from embodiment one is that the feeding pipe 14 is provided with an arc-shaped part 16 at the positions corresponding to the first rotating shaft 6 and the second rotating shaft 7, which facilitates the installation of the feeding pipe 14 with the first rotating shaft 6 and the second rotating shaft 7.

[0029] Example 6

[0030] In Example 1, heating the materials in mixing tank 5 is inconvenient; refer to... Figure 1 As another preferred embodiment, the difference from embodiment one is that a disc heating tube is installed at the bottom of the inner side of the mixing box 5 to facilitate heating of the materials in the mixing box 5.

[0031] Working principle: When using this utility model, the extractant to be used is added into the feed box 10 through the feed hopper 11. After the addition is completed, the booster pump 13 works, pressurizing the extractant in the feed box 10 and sending it into the distribution column 12. Then, it is sprayed out through the nozzle 17 on the distribution column 12, so that it can be sprayed more evenly from the center of the mixing box 5 to the surrounding area. This allows the extractant to be added more evenly into the mixing box 5 for mixing. At the same time, the stirring motor 9 works, driving the first rotating shaft 6, the second rotating shaft 7 and the stirring blade 8 to rotate, which can stir the material in the mixing box 5 and improve the mixing efficiency. After the mixing is completed, the feed pump 15 works, sending the mixed extractant into the distillation column body 1 through the feed pipe 14 for distillation.

[0032] Beneficial effects: This utility model has a novel structure and ingenious design, which facilitates the mixing of various extractants, has good mixing uniformity and high mixing efficiency, and is beneficial to distillation.

[0033] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intelligent multi-effect extraction distillation tower, comprising a distillation tower body (1) for use, a bracket (2) mounted on the top of the distillation tower body (1), and a mounting plate (3) arranged at one end of the bracket (2), characterized in that: It also includes a mixing assembly (4), and the mixing assembly (4) is installed on the top of the mounting plate (3); The mixing assembly (4) comprises a mixing box (5), a first rotating shaft (6), a second rotating shaft (7), a stirring blade (8), a stirring motor (9), a feeding box (10), a feeding hopper (11), a splitter column (12), a booster pump (13), a feeding pipe (14), a feeding pump (15), an arc portion (16) and a spray hole (17). The mixing box (5) is fixed on the mounting plate (3). The top of the inner side of the mixing box (5) is transversely mounted with the first rotating shaft (6), the bottom of the inner side of the mixing box (5) is transversely mounted with the second rotating shaft (7), and a first rotating shaft (6) and a second rotating shaft (7) are arranged on the mixing box (5). A stirring motor (9) is installed at the end, a feeding box (10) is installed on one side of the top of the mixing box (5), a feeding hopper (11) is installed on the top of the feeding box (10), a diverter column (12) is installed in the middle of the inner side of the mixing box (5), the top of the diverter column (12) is connected to the feeding box (10), a booster pump (13) is installed on the top of the diverter column (12), a feeding pipe (14) connected to the distillation tower body (1) is arranged at the bottom of one side of the mixing box (5), a feeding pump (15) is installed on the feeding pipe (14), and a plurality of spray holes (17) are opened on the surface of the diverter column (12).

2. The intelligent multi-effect extraction distillation tower according to claim 1, characterized in that: A plurality of stirring blades (8) are installed on the surfaces of the first rotating shaft (6) and the second rotating shaft (7).

3. The intelligent multi-effect extraction distillation tower according to claim 1, characterized in that: The first rotating shaft (6) and the second rotating shaft (7) are connected to the mixing box (5) via bearings.

4. The intelligent multi-effect extraction distillation tower according to claim 1, characterized in that: A filter screen is installed in the feeding hopper (11).

5. The intelligent multi-effect extraction distillation tower according to claim 1, characterized in that: The splitter column (12) is provided with arc-shaped portions (16) at positions corresponding to the first rotating shaft (6) and the second rotating shaft (7).

6. The intelligent multi-effect extraction distillation tower according to claim 1, characterized in that: A disc-type heating pipe is installed at the bottom of the inner side of the mixing box (5).

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