Extraction device

Abstract

The present invention relates to the field of separation technology, and specifically refers to an extraction device, including an extraction chamber, wherein a diaphragm and a bracket are arranged in the extraction chamber, the diaphragm is supported and fixed in the extraction chamber by the bracket, the diaphragm divides the extraction chamber into a first extraction channel and a second extraction channel, and guide blocks are respectively provided at both ends of the diaphragm along the liquid flow direction, the diaphragm is supported and fixed between the two guide blocks by the bracket, and the guide blocks are fixedly connected to the inner wall of the extraction chamber, the bracket includes a first support frame and a second support frame, the first support frame and the second support frame are respectively wavy, liquid holes are arranged at intervals on the first support frame, and liquid holes are arranged at intervals on the second support frame. The present invention has a clever structure, is easy to operate, saves time and effort, has high extraction efficiency, low extraction cost, does not require separation equipment, and occupies a small space.

Description

Technical Field

[0001] The present invention relates to the field of separation technology, in particular to an extraction device. Background Art

[0002] Interface refers to the area between material phases, which exists between two phases and has a thickness of about several to dozens of molecular layers. It is different from the concept of "surface" in geometry. The surface here has thickness and is the boundary area between specific material phases. Interface phenomena occur with mass transfer, which has a significant impact on the mass transfer process. Extraction, distillation, absorption, gas-liquid reaction, liquid-liquid reaction, and gas-liquid-solid three-phase reaction are all typical interfacial mass transfer processes. Extraction is a unit operation that uses the different solubility of components in the system in the solvent to separate the mixture. There are two types of extraction: liquid-liquid extraction and solid-liquid extraction. Traditional liquid-liquid two-phase The extraction operation process includes the following steps: first, the raw liquid and the extractant are fully mixed and contacted to complete the solute mass transfer process; second, the extraction phase and the extract phase are separated; finally, the extractant and the extracted solute are separated from the extraction phase to achieve purification. The shortcomings of the existing technology are: first, traditional liquid-liquid two-phase extraction requires the two immiscible phases to be fully mixed to maximize the contact area between the two phases and achieve efficient mass transfer. This method can only produce a limited contact area between the two phases, and there is also a risk of producing an emulsion during the mixing process; second, the separation of the two phases after mixing also requires a separation chamber or centrifuge that relies on the density difference between the two phases, which increases the extraction cost. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the existing technology and provide an extraction device with ingenious structure, convenient operation, time and labor saving, high extraction efficiency, low extraction cost, no need for separation equipment, and small space occupation.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An extraction device includes an extraction chamber, characterized in that a diaphragm and a bracket are provided in the extraction chamber, the diaphragm is supported and fixed in the extraction chamber by the bracket, and the diaphragm divides the extraction chamber into a first extraction channel and a second extraction channel, so that when the first liquid phase passes through the first extraction channel and the second liquid phase passes through the second extraction channel, the first liquid phase and the second liquid phase can be efficiently transferred on the surface of the diaphragm, resulting in high separation efficiency.

[0006] The diaphragm of the present invention is provided with guide blocks at both ends along the liquid flow direction. The diaphragm is supported and fixed between the two guide blocks by a bracket. The guide blocks are fixedly connected to the inner wall of the extraction chamber to facilitate the first liquid phase and the second liquid phase to enter the first extraction channel and the second extraction channel respectively through the guide blocks. The first liquid phase and the second liquid phase after extraction by the diaphragm are then separated by the guide blocks and automatically separated without the need for separation equipment.

[0007] The bracket of the present invention includes a first support frame and a second support frame, the first support frame is placed in the first extraction channel, and the second support frame is placed in the second extraction channel, one side of the diaphragm is fixedly connected to the first support frame, and the other side is fixedly connected to the second support frame, the front end of the first support frame, the front end of the diaphragm and the front end of the second support frame are respectively fixedly connected, and then fixedly connected to the guide block on the front side of the extraction chamber, the rear end of the first support frame, the rear end of the diaphragm and the rear end of the second support frame are respectively fixedly connected, and then fixedly connected to the guide block on the rear side of the extraction chamber, the upper end of the first support frame, the upper end of the diaphragm and the upper end of the second support frame are respectively fixedly connected to the top of the extraction chamber, and the lower end of the first support frame, the lower end of the diaphragm and the lower end of the second support frame are respectively fixedly connected to the bottom of the extraction chamber, so as to facilitate supporting and fixing the diaphragm by the first support frame and the second support frame.

[0008] The first support frame and the second support frame of the present invention are respectively wavy-shaped, and the first support frame and the second support frame are symmetrically arranged on the left and right sides of the diaphragm. Connecting parts are provided on the diaphragm at intervals along the direction of liquid flow. The left side of the connecting part is fixedly connected to the first support frame, and the right side is fixedly connected to the second support frame, so that the first support frame and the second support frame support the diaphragm without excessively blocking the surface of the diaphragm.

[0009] In the present invention, liquid holes are provided at intervals on the first support frame, and liquid holes are provided at intervals on the second support frame, so as to facilitate liquid to pass through the first support frame or the second support frame.

[0010] The diaphragm of the present invention is a porous diaphragm, and the pore diameter of the pores on the diaphragm is between 0.1 and 100 microns.

[0011] Due to the adoption of the above structure, the present invention has the advantages of clever structure, convenient operation, time and labor saving, high extraction efficiency, low extraction cost, no need for separation equipment, and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 For the present invention Figure 1 front or rear view.

[0014] Figure 3 It is an enlarged view of the structure of the diaphragm and the bracket in the present invention.

[0015] Reference numerals: extraction chamber 1 , diaphragm 2 , bracket 3 , first extraction channel 4 , second extraction channel 5 , guide block 6 , first support frame 7 , second support frame 8 , connecting portion 9 . DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0017] An extraction device includes an extraction chamber 1, characterized in that a diaphragm 2 and a bracket 3 are provided in the extraction chamber 1, the diaphragm 2 is supported and fixed in the extraction chamber 1 by the bracket 3, and the diaphragm 2 divides the extraction chamber 1 into a first extraction channel 4 and a second extraction channel 5, so that when the first liquid phase passes through the first extraction channel and the second liquid phase passes through the second extraction channel, the first liquid phase and the second liquid phase are efficiently transferred on the surface of the diaphragm, resulting in high separation efficiency.

[0018] The diaphragm 2 of the present invention is provided with guide blocks 6 at both ends along the liquid flow direction. The diaphragm 2 is supported and fixed between the two guide blocks 6 by the bracket 3. The guide blocks 6 are fixedly connected to the inner wall of the extraction chamber 1 to facilitate the first liquid phase and the second liquid phase to enter the first extraction channel and the second extraction channel respectively through the guide blocks. The first liquid phase and the second liquid phase after the diaphragm extraction are then separated by the guide blocks and automatically separated without the need for separation equipment.

[0019] The bracket 3 described in the present invention includes a first support frame 7 and a second support frame 8. The first support frame 7 is placed in the first extraction channel 4, and the second support frame 8 is placed in the second extraction channel 5. The diaphragm 2 is fixedly connected to the first support frame 7 on one side, and fixedly connected to the second support frame 8 on the other side. The front end of the first support frame 7, the front end of the diaphragm 2 and the front end of the second support frame 8 are fixedly connected respectively, and then fixedly connected to the guide block 6 on the front side of the extraction chamber 1. The rear end of the first support frame 7, the rear end of the diaphragm 2 and the rear end of the second support frame 8 are fixedly connected respectively, and then fixedly connected to the guide block 6 on the rear side of the extraction chamber 1. The upper end of the first support frame 7, the upper end of the diaphragm 2 and the upper end of the second support frame 8 are fixedly connected to the top of the extraction chamber 1 respectively, and the lower end of the first support frame 7, the lower end of the diaphragm 2 and the lower end of the second support frame 8 are fixedly connected to the bottom of the extraction chamber 1 respectively, so as to facilitate supporting and fixing the diaphragm by the first support frame and the second support frame.

[0020] The first support frame 7 and the second support frame 8 of the present invention are respectively wavy-shaped. The first support frame 7 and the second support frame 8 are symmetrically arranged on the left and right sides of the diaphragm 2. The diaphragm 2 is provided with connecting parts 9 at intervals along the direction of liquid flow. The left side of the connecting part 9 is fixedly connected to the first support frame 7, and the right side is fixedly connected to the second support frame 8, so that the first support frame and the second support frame support the diaphragm without excessively blocking the surface of the diaphragm.

[0021] In the present invention, liquid holes are provided at intervals on the first support frame 7 and liquid holes are provided at intervals on the second support frame 8 to facilitate liquid to pass through the first support frame or the second support frame.

[0022] The diaphragm of the present invention is a porous diaphragm, and the pore diameter of the pores on the diaphragm is between 0.1 and 100 microns.

[0023] As attached Figure 1 -Attached Figure 3 A diaphragm is provided in the middle of the extraction chamber, which is fixed in the extraction chamber by a bracket. The diaphragm divides the extraction chamber into a first extraction channel and a second extraction channel. Figure 1 The first extraction channel is on the left side of the diaphragm, the second extraction channel is on the right side of the diaphragm, the first extraction channel has a first liquid inlet at the rear end, a first liquid outlet at the front end, a second liquid inlet at the front end, and a second liquid outlet at the rear end of the second extraction channel, as shown in the attached figure. Figure 3 , a first support frame and a second support frame are provided on the left and right sides of the diaphragm, the first support frame is arranged in the first extraction channel, and the second support frame is arranged in the second extraction channel, and the first support frame and the second support frame constitute a bracket supporting the diaphragm, as shown in the attached Figure 1 and attached Figure 2 , guide blocks are provided at both ends of the diaphragm to separate the front end of the first extraction channel from the front end of the second extraction channel, and the rear end of the first extraction channel from the rear end of the second extraction channel. Figure 1 The first liquid phase flows forward from the rear end of the first extraction channel into the first extraction channel, and the second liquid phase flows backward from the front end of the second extraction channel into the second extraction channel. The first liquid phase and the second liquid phase undergo efficient mass transfer on the surface of the diaphragm. When the first liquid phase is the extraction liquid, the solute in the second liquid phase is extracted into the first liquid phase. When the second liquid phase is the extraction liquid, the solute in the first liquid phase is extracted into the second liquid phase. The first liquid phase after extraction flows out from the front end of the first extraction channel, and the second liquid phase after extraction flows out from the rear end of the second extraction channel. Due to the presence of the guide block, the first liquid phase and the second liquid phase after extraction are naturally separated, and no additional separation equipment is required. In addition, the present invention can set multiple parallel extraction devices as needed. The extraction chamber can be separated into a plurality of extraction spaces by a diaphragm, and two extraction channels are formed by the diaphragm. The diaphragm can be set according to the needs. The diaphragm in the present invention is made of a hydrophilic porous material. Any of the first liquid phase and the second liquid phase can be an aqueous phase. During extraction, the first liquid phase and the second liquid phase enter the first extraction channel and the second extraction channel through the guide block in a countercurrent manner. After efficient mass transfer through the diaphragm, the first extraction channel and the second extraction channel are guided out through the guide block. The diaphragm increases the contact area between the first liquid phase and the second liquid phase, which can greatly improve the mass transfer efficiency between the two phases. At the same time, no additional separation equipment is required, and it has the advantages of high extraction efficiency, low equipment investment, and small space occupation.

[0024] Due to the adoption of the above structure, the present invention has the advantages of clever structure, convenient operation, time and labor saving, high extraction efficiency, low extraction cost, no need for separation equipment, and small space occupation.

Claims

1. An extraction device comprising an extraction chamber, characterized in that: The extraction chamber is provided with a diaphragm and a bracket, the diaphragm is supported and fixed in the extraction chamber by the bracket, the diaphragm divides the extraction chamber into a first extraction channel and a second extraction channel, the two ends of the diaphragm along the liquid flow direction are respectively provided with guide blocks, the diaphragm is supported and fixed between the two guide blocks by the bracket, the guide blocks are fixedly connected to the inner wall of the extraction chamber, the bracket includes a first support frame and a second support frame, the first support frame is placed in the first extraction channel, the second support frame is placed in the second extraction channel, one side of the diaphragm is fixedly connected to the first support frame, and the other side is fixedly connected to the second support frame, the front end of the first support frame, the front end of the diaphragm and the front end of the second support frame are respectively fixedly connected, and then connected to the extraction chamber. The guide block on the front side of the extraction chamber is fixedly connected, the rear end of the first support frame, the rear end of the diaphragm and the rear end of the second support frame are respectively fixedly connected, and then fixedly connected to the guide block on the rear side of the extraction chamber, the upper end of the first support frame, the upper end of the diaphragm and the upper end of the second support frame are respectively fixedly connected to the top of the extraction chamber, the lower end of the first support frame, the lower end of the diaphragm and the lower end of the second support frame are respectively fixedly connected to the bottom of the extraction chamber, the first support frame and the second support frame are respectively wavy, the first support frame and the second support frame are symmetrically arranged on the left and right sides of the diaphragm, and connecting parts are spaced apart on the diaphragm along the direction of liquid flow, the left side of the connecting part is fixedly connected to the first support frame, and the right side is fixedly connected to the second support frame.

2. An extraction device according to claim 1, characterized in that: Liquid holes are provided at intervals on the first support frame, and liquid holes are provided at intervals on the second support frame.

3. An extraction device according to claim 1 or 2, characterized in that: The diaphragm is a porous diaphragm, and the pore diameter of the pores on the diaphragm is between 0.1 and 100 microns.

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