CN209865368U - Dynamic countercurrent extraction device for coupled membrane filtration - Google Patents
Dynamic countercurrent extraction device for coupled membrane filtration Download PDFInfo
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- CN209865368U CN209865368U CN201920282522.3U CN201920282522U CN209865368U CN 209865368 U CN209865368 U CN 209865368U CN 201920282522 U CN201920282522 U CN 201920282522U CN 209865368 U CN209865368 U CN 209865368U
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Abstract
A dynamic countercurrent extraction device of coupled membrane filtration belongs to the technical field of plant extraction devices. The device comprises an extraction cylinder, wherein a cavity of the extraction cylinder is an extraction cavity, a group of molecular membrane tubes are longitudinally arranged in the extraction cavity, a rotating shaft rotating with the molecular membrane tubes is arranged in the middle of each molecular membrane tube, propeller blades are fixedly arranged on the inner wall of each molecular membrane tube from top to bottom, the rotating shafts are matched in a transmission manner and driven to rotate by a motor, the top of each molecular membrane tube is provided with a uniform material inlet, the bottom of each molecular membrane tube is provided with a material residue outlet, the bottom of the extraction cavity is provided with a solvent inlet, and the top of. The dynamic countercurrent extraction device for coupled membrane filtration has the advantages of high extraction efficiency, large concentration gradient, high leaching speed, high extraction rate of effective components, small liquid outlet coefficient, substantial energy conservation, low-temperature leaching, uniform heating and the like, and can stably realize a continuous dynamic countercurrent extraction process and full-closed continuous production; the whole machine has small volume, simple and convenient operation and convenient cleaning and maintenance.
Description
Technical Field
The utility model belongs to the technical field of the plant extraction element, specifically be a dynamic countercurrent extraction device that coupling membrane was strained.
Background
The microfiltration membrane separation technology begins in the middle of the 19 th century, and is a membrane process which takes static pressure difference as a driving force and utilizes the sieving effect of a screen-shaped filter medium membrane to carry out separation. The membrane subjected to microfiltration is called a microfiltration membrane. The micro-filtration membrane is a uniform porous membrane, the thickness is 90-150 μm, the filtration particle size is 0.025-10 μm, and the operation pressure is 0.01-0.2 MPa. The main technical advantages of the microfiltration membrane are: uniform membrane pore diameter, high filtration precision, fast filtration speed, less adsorption capacity, no medium falling and the like. The micro-filtration membrane is mainly used for intercepting suspended solids and bacteria. The microfiltration technology is mainly applied to the fields of food and beverage, medicine and health, electronics, chemical industry, environmental monitoring and the like, such as detection and analysis of water and air by scientific research and environmental protection departments, air and pure water purification of the electronic industry, manufacture of edible pure water in the food industry, sterilization and particle removal of water in the medicine and pharmaceutical industry and the like. According to the trapping position of the particles in the micro-filtration process, there are 3 trapping mechanisms: sieving, adsorbing and bridging, and the microfiltration principle of the components is as follows: (1) sieving, namely intercepting particles which are larger than or equal to the membrane pore size by a microporous filter membrane, namely mechanical interception; (2) adsorption, the particles are adsorbed by the filter membrane by physical-chemical adsorption. Particles smaller in size than the membrane pores may also be trapped; (3) bridging, particles build up and push against each other, resulting in many particles failing to enter the membrane pores or becoming lodged in the pores, thereby completing the entrapment.
Countercurrent extraction refers to the process in which the material and solvent are continuously moving at the same time, but in opposite directions. Countercurrent extraction is carried out by mechanical transmission and continuous quantitative feeding. The materials are fully contacted with the solvent, and the solvent in the equipment is continuously updated. The extraction process of the effective components of the plants is a solid-liquid mass transfer process, which is a mass transfer process from a solid-phase raw material to low-concentration liquid-phase leaching and can be generally divided into 3 steps: (1) dissolving the solvent into plant tissue cells; (2) resolving and dissolving the solute in the multicellular system in a solvent; (3) solute diffuses out from the cell interior. It can be seen that the concentration difference of effective components in plants and solvent is one of the main factors influencing the extraction process, and the larger the concentration difference is, the larger the driving force of leaching mass transfer is. The faster the mass transfer rate, the greater the leaching rate of the active ingredients. The greater the concentration difference, the faster the diffusion rate of the active ingredient. Therefore, effectively increasing the concentration difference can improve the extraction efficiency. For continuous dynamic countercurrent extraction, continuous concentration gradients exist in the solvent in the processes of continuous liquid inlet and continuous liquid outlet, so that the extracting solution can obtain a faster leaching speed and a higher extracting solution concentration.
The existing countercurrent extraction technology and the existing microfiltration membrane filtration technology are used as two independent process units, materials are filtered by the microfiltration membrane after being treated by the countercurrent extraction technology, so that the operation steps are multiple, the process is complicated, the solvent loss is large, multiple sets of equipment investment are increased, the cost is high, and the development of equipment for fusing the countercurrent extraction technology and the microfiltration membrane filtration technology is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the above problems existing in the prior art, the object of the present invention is to design and provide a technical solution of a dynamic countercurrent extraction device with coupled membrane filtration, which organically combines the continuous dynamic countercurrent extraction process technology and the membrane filtration technology, and has the advantages of high extraction efficiency, large concentration gradient, fast leaching speed, high extraction rate of effective components, small liquid discharge coefficient, substantial energy saving, low-temperature leaching, uniform heating, etc., and can stably realize the continuous dynamic countercurrent extraction process and totally-enclosed continuous production; the whole machine has small volume, simple and convenient operation and convenient cleaning and maintenance.
The dynamic countercurrent extraction device for coupled membrane filtration comprises an extraction barrel, wherein a cavity of the extraction barrel is an extraction cavity, the dynamic countercurrent extraction device is characterized in that a group of molecular membrane tubes are longitudinally arranged in the extraction cavity, a rotating shaft rotating with the molecular membrane tubes is arranged in the middle of each molecular membrane tube, propeller blades are fixedly arranged on the inner walls of the molecular membrane tubes from top to bottom, the rotating shafts are in transmission fit and driven to rotate by a motor, the tops of the molecular membrane tubes are provided with uniform material inlets, the bottoms of the molecular membrane tubes are provided with material slag outlets, the bottom of the extraction cavity is provided with a solvent inlet, and the tops of the extraction cavity are.
The dynamic countercurrent extraction device for coupled membrane filtration is characterized in that four molecular membrane tubes are longitudinally arranged in an extraction cavity.
The dynamic countercurrent extraction device for coupled membrane filtration is characterized in that a solvent inlet is connected with a solvent storage tank in a matching way through a constant self-priming pump.
The dynamic countercurrent extraction device for coupled membrane filtration is characterized in that an extract liquid outlet is connected with an extract liquid storage tank in a matching way.
The dynamic countercurrent extraction device of coupled membrane filtration is characterized in that the molecular membrane tube is a microfiltration membrane with the interception aperture of 0.1-5.0 mu m.
The dynamic countercurrent extraction device for coupled membrane filtration organically combines a continuous dynamic countercurrent extraction process technology and a membrane filtration technology, has the advantages of high extraction efficiency, large concentration gradient, high leaching speed, high extraction rate of effective components, small liquid outlet coefficient, substantial energy conservation, low-temperature leaching, uniform heating and the like, and can stably realize the continuous dynamic countercurrent extraction process and totally-enclosed continuous production; the whole machine has small volume, simple and convenient operation and convenient cleaning and maintenance.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-extraction cylinder, 2-extraction cavity, 3-molecular membrane tube, 4-propeller blade, 5-rotating shaft, 6-material inlet, 7-leaching liquor storage tank, 8-leaching liquor outlet, 9-motor, 10-solvent inlet, 11-constant self-priming pump, 12-solvent storage tank and 13-slag outlet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the figure, this developments extraction element against current that coupling membrane strained, including extracting a section of thick bamboo 1, the cavity that extracts a section of thick bamboo 1 is for extracting chamber 2, vertically set up a set of molecular membrane pipe 3 in extracting chamber 2, set up rather than integrative pivoted pivot 5 in the middle of each molecular membrane pipe 3, 3 inner walls top-down of molecular membrane pipe fixedly set up propeller blade 4, transmission cooperation and drive its rotation by motor 9 between each pivot 5, each molecular membrane pipe 3 top sets up the homocline import 6, the bottom sets up the material sediment export 13, extract 2 bottoms in chamber and set up solvent import 10, the top sets up leaching liquor export 8. The motor 9 is mounted on the top surface of the extraction cartridge 1.
Furthermore, four molecular membrane tubes 3 are longitudinally arranged in the extraction cavity 2, and the motor 9 is started to drive the rotating shaft 5 and the molecular membrane tubes 3 to rotate in the extraction cavity 2.
Further, the solvent inlet 10 is connected with a solvent storage tank 12 through a constant self-priming pump 11 in a matching way.
Further, a leaching liquor outlet 8 is connected with a leaching liquor storage tank 7 in a matching way.
Furthermore, the molecular membrane tube 3 is a microfiltration membrane with the interception aperture of 0.1-5.0 μm, after materials in the molecular membrane tube 3 are contacted with the solvent in the extraction cylinder 1, the microfiltration membrane intercepts materials such as material residues, suspended particles and the like in the molecular membrane tube 3, and a large amount of soluble components of the materials are leached out of the molecular membrane tube 3, so that the extraction process and the membrane filtration process are organically combined, and the preparation efficiency is improved; moreover, the leached soluble material component forms higher concentration in the molecular membrane tube 3 and forms larger concentration difference with the solvent in the extraction cylinder 1, the diffusion rate of the effective component is accelerated, and then faster leaching speed and higher concentration of the extracting solution are obtained.
The working principle of the utility model is as follows: solid materials enter from a material inlet 6 at the upper end of an extraction cylinder 1, simultaneously, a solvent for extracting the materials enters from a solvent inlet 10 at the lower end of the extraction cylinder 1, a rotating shaft 5 drives a molecular membrane tube 3 to rotate, movement of a propeller blade 4 is realized, the material is slowly pushed from the upper end to the lower end of the extraction cylinder 1 by the propeller blade 4 fixed on the inner wall of the molecular membrane tube 3, the material slag is forcibly pushed to a material slag outlet 9 by the propeller blade 4 to be discharged, simultaneously, the material slag is extruded by the propeller blade 4, the material slag is extruded out of material tissues, and the content of the material slag and the residual material liquid is reduced; the materials and the solvent are fully contacted in the continuous reverse motion, the solvent in the extraction cavity 2 is continuously updated, and the continuous dynamic countercurrent extraction of the materials is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a developments extraction element against current that coupling membrane strained, including extracting a section of thick bamboo (1), the cavity of extracting a section of thick bamboo (1) is for extracting chamber (2), its characterized in that draws and vertically sets up a set of molecular membrane pipe (3) in chamber (2), set up rather than integrative pivoted pivot (5) in the middle of each molecular membrane pipe (3), molecular membrane pipe (3) inner wall top-down is fixed to set up propeller blade (4), the transmission cooperation is driven and is driven its rotation by motor (9) between each pivot (5), each molecular membrane pipe (3) top sets up even material import (6), the bottom sets up material sediment export (13), it sets up solvent import (10) to draw chamber (2) bottom, the top sets up leaching liquor export (8).
2. A dynamic countercurrent extraction apparatus coupled with membrane filtration according to claim 1, characterized in that four molecular membrane tubes (3) are arranged longitudinally in the extraction chamber (2).
3. A dynamic countercurrent extraction apparatus coupled with membrane filtration, as claimed in claim 1, characterized in that the solvent inlet (10) is connected in a fitting manner to the solvent reservoir (12) by means of a constant self-priming pump (11).
4. A dynamic countercurrent extraction apparatus coupled with membrane filtration according to claim 1, characterized in that the leachate outlet (8) is connected in a fitting manner to the leachate tank (7).
5. A dynamic countercurrent extraction apparatus coupled with membrane filtration as claimed in claim 1, characterized in that said molecular membrane tube (3) is a microfiltration membrane with a cut-off pore size of 0.1-5.0 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920282522.3U CN209865368U (en) | 2019-03-06 | 2019-03-06 | Dynamic countercurrent extraction device for coupled membrane filtration |
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| CN201920282522.3U CN209865368U (en) | 2019-03-06 | 2019-03-06 | Dynamic countercurrent extraction device for coupled membrane filtration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634011A (en) * | 2021-08-24 | 2021-11-12 | 伽能生物科技(上海)有限公司 | Production integrated system of red pruned pine and red pruned refined extract composition, red pruned pine and red pruned refined extract composition and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634011A (en) * | 2021-08-24 | 2021-11-12 | 伽能生物科技(上海)有限公司 | Production integrated system of red pruned pine and red pruned refined extract composition, red pruned pine and red pruned refined extract composition and preparation method thereof |
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