CN110917656A - Chemical experiment extraction device - Google Patents
Chemical experiment extraction device Download PDFInfo
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- CN110917656A CN110917656A CN201911232251.1A CN201911232251A CN110917656A CN 110917656 A CN110917656 A CN 110917656A CN 201911232251 A CN201911232251 A CN 201911232251A CN 110917656 A CN110917656 A CN 110917656A
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- liquid
- extraction
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- outlet pipe
- liquid inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
- B01D11/0434—Counter-current multistage extraction towers in a vertical or sloping position comprising rotating mechanisms, e.g. mixers, rotational oscillating motion, mixing pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
Abstract
The invention discloses a chemical experiment extraction device, which relates to the field of chemical experiment instruments and comprises a support base provided with two first support plates, wherein one adjacent side of the two first support plates is connected with an electric slider through an electric guide rail, one adjacent side of the two electric sliders is connected with a second support plate, a liquid mixing container is connected between the two second support plates, the liquid mixing container is connected with a liquid inlet cup through a liquid inlet pipe, the lower part of the liquid mixing container is communicated with an extraction container, the side wall of the extraction container is provided with a stirring motor, the stirring motor is connected with a stirring shaft, and the stirring shaft penetrates through the extraction container; the side wall of the lower part of the extraction container is embedded with a liquid outlet pipe, the support base is provided with a sliding installation seat, the sliding installation seat is provided with an extraction liquid collecting mechanism, and the extraction liquid collecting mechanism is positioned below the liquid outlet pipe. The chemical experiment extraction device provided by the invention is uniform in stirring and mixing, adopts the liquid outlet pipe to convey the extraction liquid, and is high in extraction purity.
Description
Technical Field
The invention relates to the technical field of chemical experiment instruments, in particular to a chemical experiment extraction device.
Background
Extraction, also known as solvent extraction or liquid-liquid extraction, also known as extraction, is a unit operation for separating mixtures by utilizing the different solubilities of the components in the system in a solvent, i.e., a method for transferring solute substances from one solvent to another solvent by utilizing the difference in solubility or partition coefficient of the substances in two mutually insoluble (or slightly soluble) solvents
When chemical production, need carry out the chemical extraction experiment to guarantee later stage product production quality, carry out the chemical extraction experiment at the workman, the chemical extraction device structure that the mill adopted is comparatively simple, and the workman is extracting the experimentation, and it is inhomogeneous to appear stirring easily, leads to extracting the experimental result unsatisfactory, when extracting layering liquid, the mode of generally adopting to empty simultaneously, appears easily and pours the phenomenon, and mixes easily when leading to layering liquid to extract, and the extract is impure.
Disclosure of Invention
The invention aims to provide a chemical experiment extraction device, which solves the problems in the prior art, ensures that the extraction process is uniformly stirred and mixed, adopts a liquid outlet pipe to convey extraction liquid, and has high extraction purity.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a chemical experiment extraction device, which comprises a supporting base, wherein the outer walls of two sides of the top of the supporting base are respectively connected with a vertically arranged first supporting plate through bolts, the outer wall of one side adjacent to the two first supporting plates is respectively provided with a first groove, the inner walls of the two first grooves are respectively connected with a vertically arranged electric guide rail through bolts, the outer wall of one side adjacent to the two electric guide rails is respectively connected with an electric slider in a sliding manner, the outer wall of one side adjacent to the two electric sliders is respectively connected with a horizontally arranged second supporting plate through bolts, a liquid mixing container is fixedly connected between the two second supporting plates, the top of the liquid mixing container is fixedly connected with a liquid inlet cup through a liquid inlet pipe, a first valve is fixedly arranged on the outer side wall of the liquid inlet pipe, the lower end part of the liquid inlet pipe is communicated with the liquid mixing container, the lower part of, a stirring motor is fixedly arranged on the outer side wall of the extraction container, the stirring motor is fixedly connected with a stirring shaft, and the stirring shaft is arranged in the extraction container in a penetrating manner; the extraction container is characterized in that a liquid outlet pipe is embedded in the side wall of the lower portion of the extraction container, a second valve is fixedly mounted on the side wall of the outer portion of the liquid outlet pipe, a sliding mounting seat is arranged on the supporting base, an extraction liquid collecting mechanism is arranged on the sliding mounting seat, and the extraction liquid collecting mechanism is located below the liquid outlet pipe.
Optionally, the extract liquid collecting mechanism comprises a liquid taking area; the liquid extraction device is characterized in that a rotating supporting plate is arranged on the liquid extraction collecting mechanism and is rotationally connected with the sliding mounting seat, a placing cavity is arranged inside the rotating supporting plate, the placing cavity and the rotating supporting plate are of an integrally formed structure, the liquid taking area is arranged in the middle of the rotating supporting plate, a surface dish is arranged in the liquid taking area and is placed inside the liquid taking area, six grooves are formed in the surface dish, a lifting mechanism is arranged in the middle of the surface dish, and the lifting mechanism is fixedly connected with the surface dish.
Optionally, one side of the extraction container, which is far away from the stirring shaft, is communicated with an upper liquid discharge pipe, one end of the upper liquid discharge pipe, which is located in the extraction container, is nested with a memory pipeline, one end of the upper liquid discharge pipe, which is located outside the extraction container, is connected with an extraction box, a piston is arranged in the extraction box, the piston is connected with a pull rod, the bottom end of the extraction box is provided with a water outlet pipe, the memory pipeline is provided with a traction rope, and the traction rope penetrates through the upper liquid discharge pipe and then is connected with a holding handle.
Optionally, the liquid mixing plate is fixedly connected to the side wall inside the liquid mixing container, and the liquid inlet through hole is formed in the surface of the liquid mixing plate.
Optionally, two liquid mixing plates are symmetrically arranged inside the liquid mixing container, and the liquid mixing plates are of a central concave structure; the liquid inlet through holes are uniformly distributed on the liquid mixing plate.
Optionally, mix liquid container top symmetry and install two the feed liquor cup, the feed liquor cup is made for transparent material, just the feed liquor cup outer wall superscript is equipped with the scale.
Optionally, a flow meter is arranged on the liquid outlet pipe; and a liquid level meter is arranged in the extraction container.
Optionally, the electric sliding block and the stirring motor are respectively connected with a switch through a wire, and the switch is connected with a power supply through a wire.
Compared with the prior art, the invention has the following technical effects:
according to the extraction device for the chemical experiment extraction device, the extraction liquid and the stock solution are input into the liquid mixing container to be mixed by adopting the liquid inlet cup, and are stirred again in the extraction container, so that the mixing uniformity is improved; the liquid outlet pipe collects and separates layered liquid, so that the liquid is collected more cleanly, the extraction effect is better, the device has a simple structure and high cost performance; the bottom of the liquid outlet pipe is provided with the flowmeter, so that the amount of discharged liquid can be recorded when the liquid is discharged after extraction and precipitation are finished, the calculation of a chemical experiment is facilitated, and the effect of accurately recording the extraction amount is achieved. The height of the internal storage pipeline is adjusted through the traction rope, the upper extraction liquid is extracted through the pull rod and the piston, the structure is simple, the use is convenient, and the popularization is facilitated. The extraction liquid collecting mechanism is that the surface ware is installed at the intermediate position of rotating the layer board when using, serial number label is inserted to the position department of slot on the lifting mechanism on the surface ware, then get the extraction liquid of same time and enter into the recess, place the surface ware of serial number label in placing the chamber after completing getting, carry out time and data record to it when placing, data after the record is completed are placed in the corresponding holding tank, so on, acquire the extraction liquid many times, the time of getting is different, or the extraction liquid of different grade type, extract liquid is tested and contrasted analysis to foretell extraction liquid after finishing obtaining, reduce the error through the multiunit test, carry out experimental analysis through different time or extraction liquid contrast, can effectively improve the accuracy of experimental data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of the overall structure of the extraction apparatus for chemical experiments according to the present invention;
FIG. 2 is a schematic diagram of an extract liquid collecting mechanism of the extraction apparatus for chemical experiment of the present invention;
FIG. 3 is a schematic view of a liquid mixing plate of the extraction apparatus for chemical experiments according to the present invention;
the device comprises a support base 1, a first support plate 2, an electric guide rail 3, an electric slide block 4, a second support plate 5, a liquid mixing container 6, a liquid inlet pipe 7, a liquid inlet cup 8, a first valve 9, an extraction container 10, a stirring motor 11, a stirring shaft 12, a liquid outlet pipe 13, a second valve 14, a sliding mounting seat 15, an extract liquid collecting mechanism 16, a liquid taking area 17, a rotating supporting plate 18, a placing cavity 19, a surface vessel 20, a groove 21, a lifting mechanism 22, an upper liquid discharging pipe 23, an internal storage pipeline 24, an extraction box 25, a piston 26, a pull rod 27, a water outlet pipe 28, a traction rope 29, a liquid mixing plate 30, a liquid inlet through hole 31 and a holding groove 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a chemical experiment extraction device, which solves the problems in the prior art, ensures that the extraction process is uniformly stirred and mixed, adopts a liquid outlet pipe to convey extraction liquid, and has high extraction purity.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a chemical experiment extraction device, which comprises a support base 1, wherein the outer walls of two sides of the top of the support base 1 are respectively connected with a first support plate 2 which is vertically arranged through bolts, the outer walls of one side adjacent to the two first support plates 2 are respectively provided with a first groove, the inner walls of the two first grooves are respectively connected with an electric guide rail 3 which is vertically arranged through bolts, the outer walls of one side adjacent to the two electric guide rails 3 are respectively connected with an electric slider 4 in a sliding manner, the outer walls of one side adjacent to the two electric sliders 4 are respectively connected with a second support plate 5 which is horizontally arranged through bolts, a cylindrical liquid mixing container 6 is fixedly connected between the two second support plates 5, and the electric sliders 4 can drive the liquid mixing container 6 to move on the electric guide rails 3; the top of the liquid mixing container 6 is fixedly connected with a liquid inlet cup 8 through a liquid inlet pipe 7, the outer side wall of the liquid inlet pipe 7 is fixedly provided with a first valve 9, the lower end part of the liquid inlet pipe 7 is communicated with the liquid mixing container 6, the lower part of the liquid mixing container 6 is fixedly communicated with an extraction container 10, the outer side wall of the extraction container 10 is fixedly provided with a stirring motor 11, the stirring motor 11 is fixedly connected with a stirring shaft 12, and the stirring shaft 12 penetrates through the extraction container 10; a liquid outlet pipe 13 is embedded on the side wall of the lower part of the extraction container 10, a second valve 14 is fixedly mounted on the side wall of the outer part of the liquid outlet pipe 13, a sliding mounting seat 15 is arranged on the supporting base 1, an extraction liquid collecting mechanism 16 is arranged on the sliding mounting seat 15, and the extraction liquid collecting mechanism 16 is positioned below the liquid outlet pipe 13.
Further preferably, the extract collecting mechanism 16 comprises a liquid taking area 17; extract is provided with on the mechanism 16 and rotates layer board 18, it is connected to rotate between rotation layer board 18 and the sliding installation seat 15, the inside of rotating layer board 18 is provided with places the chamber 19, it is the integrated into one piece structure with rotation layer board 18 to place the chamber 19, the intermediate position of rotating layer board 18 sets up gets liquid district 17, be provided with watch glass 20 in getting liquid district 17, watch glass 20 places the inside in getting liquid district 17, be provided with six recesses 21 on watch glass 20, watch glass 20's intermediate position is provided with lifting mechanism 22, fixed connection between lifting mechanism 22 and watch glass 20. An accommodating groove 32 is formed in the outer wall of the rotating supporting plate 18, and the accommodating groove 32 is fixedly connected with the rotating supporting plate 18 through screws.
One side of the extraction container 10 far from the stirring shaft 12 is communicated with an upper layer liquid discharge pipe 23, one end of the upper layer liquid discharge pipe 23, which is positioned in the extraction container 10, is nested with a memory pipeline 24, one end of the upper layer liquid discharge pipe 23, which is positioned outside the extraction container 10, is connected with an extraction box 25, a piston 26 is arranged in the extraction box 25, the piston 26 is connected with a pull rod 27, the bottom end of the extraction box 25 is provided with a water outlet pipe 28, the memory pipeline 24 is provided with a traction rope 29, and the traction rope 29 is connected with a holding handle after passing through the upper layer liquid.
The circular liquid mixing plate 30 is fixedly connected to the side wall of the inner part of the cylindrical liquid mixing container 6, and the surface of the liquid mixing plate 30 is provided with a liquid inlet through hole 31. The liquid mixing plates 30 are symmetrically arranged in the liquid mixing container 6 up and down, and the liquid mixing plates 30 are of a central concave structure; the liquid inlet through holes 31 are uniformly distributed on the liquid mixing plate 30. Mix 6 tops symmetries of liquid container and install two liquid inlet cup 8, liquid inlet cup 8 is made for transparent material, and the outer wall superscript of liquid inlet cup 8 is equipped with the scale. A flowmeter is arranged on the liquid outlet pipe 13, and a liquid level meter, not shown in the figure, is arranged in the extraction container 10; the flow meter and the liquid level meter are respectively connected with a mode-electricity conversion device through a signal transmission module, and the mode-electricity conversion device is connected with a control detector through a lead. The electric sliding block 4 and the stirring motor 11 are respectively connected with a switch through a lead, and the switch is connected with a power supply through a lead.
When the extraction device is used, firstly, the connection structure on the extraction device is checked, the extraction device can rapidly perform extraction experiments in the chemical engineering experiment process, after the detection is finished, the following operations are performed, extraction liquid and stock solution are respectively added into two liquid inlet cups 8, measuring scale strips are arranged outside the liquid inlet cups 8 to measure the addition amount of the extraction liquid and the stock solution, after the addition of the extraction liquid and the stock solution is finished, a first valve 9 outside a liquid inlet pipe 7 is opened simultaneously to enable the liquid inside the liquid inlet cups 8 to enter a liquid mixing container 6, the extraction liquid and the stock solution are preliminarily mixed on a liquid mixing plate 30, a liquid inlet through hole 31 enables the extraction liquid and the stock solution to be circulated and mixed inside the liquid mixing container 6, the liquid mixing container 6 is communicated with an extraction container 10, when the mixed liquid of the extraction liquid and the stock solution enters the bottom of the liquid mixing container 6 through the liquid inlet through hole 31 and further enters the extraction container 10 through the liquid mixing container 6, turning on a stirring motor 11, mixing the extraction liquid and the stock solution again by a stirring shaft 12, standing for a period of time after the extraction liquid and the stock solution are mixed, standing for layering, turning on a second valve 14 after standing, and enabling the bottom extraction liquid of the layered liquid to flow into an extraction liquid collecting mechanism 16 through a liquid outlet pipe 13; the position of the memory pipeline 24 in the upper layer liquid discharge pipe 23 is adjusted through a traction rope 29, so that the height of the memory pipeline 24 is adjusted; like the syringe, the upper extraction liquid is extracted by the pull rod 27 and the piston 26, and the upper extraction liquid is extracted into the extraction tank 25 and flows out into the collection container through the water outlet pipe 28.
When the lower layer of extraction liquid is discharged through the liquid outlet pipe 13, because the extraction liquid collecting mechanism 16 is just positioned under the liquid outlet pipe 13, the lower layer of extraction liquid discharged through the liquid outlet pipe 13 falls into the extraction liquid collecting mechanism 16, when the extraction liquid collecting mechanism 16 is used, the surface dish 20 is arranged at the middle position of the rotary supporting plate 18, the serial number label is inserted at the position of the slot on the lifting mechanism 22 on the surface dish 20, then the extraction liquid at the same time is taken to enter the slot 21, the surface dish 20 with the serial number label is placed in the placing cavity 19 after the extraction is finished, the time and the data are recorded when the surface dish is placed, the recorded data are placed in the corresponding containing slot, and by analogy, the extraction liquid is obtained for multiple times, the obtained time is different, or the extraction liquid with different types is obtained, and the extraction liquid is tested and contrasted and analyzed after the extraction liquid is obtained, errors are reduced by multiple sets of experiments, and experimental analysis is performed by different times or by comparison of extracts.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides a chemistry experiment extraction element which characterized in that: the device comprises a supporting base, wherein the outer walls of two sides of the top of the supporting base are both connected with vertically arranged first supporting plates through bolts, the outer wall of one side adjacent to two first supporting plates is provided with a first groove, the inner walls of the two first grooves are both connected with vertically arranged electric guide rails through bolts, the outer wall of one side adjacent to two electric guide rails is both connected with an electric slider in a sliding manner, the outer wall of one side adjacent to two electric sliders is both connected with a horizontally arranged second supporting plate through bolts, a liquid mixing container is fixedly connected between the two second supporting plates, the top of the liquid mixing container is fixedly connected with a liquid inlet cup through a liquid inlet pipe, a first valve is fixedly arranged on the outer side wall of the liquid inlet pipe, the lower end of the liquid inlet pipe is communicated with the liquid mixing container, the lower part of the liquid mixing container is fixedly communicated with an extraction container, and a stirring motor, the stirring motor is fixedly connected with a stirring shaft, and the stirring shaft is arranged in the extraction container in a penetrating manner; the extraction container is characterized in that a liquid outlet pipe is embedded in the side wall of the lower portion of the extraction container, a second valve is fixedly mounted on the side wall of the outer portion of the liquid outlet pipe, a sliding mounting seat is arranged on the supporting base, an extraction liquid collecting mechanism is arranged on the sliding mounting seat, and the extraction liquid collecting mechanism is located below the liquid outlet pipe.
2. The chemical experimental extraction apparatus of claim 1, characterized in that: the extraction liquid collecting mechanism comprises a liquid taking area; the liquid extraction device is characterized in that a rotating supporting plate is arranged on the liquid extraction collecting mechanism and is rotationally connected with the sliding mounting seat, a placing cavity is arranged inside the rotating supporting plate, the placing cavity and the rotating supporting plate are of an integrally formed structure, the liquid taking area is arranged in the middle of the rotating supporting plate, a surface dish is arranged in the liquid taking area and is placed inside the liquid taking area, six grooves are formed in the surface dish, a lifting mechanism is arranged in the middle of the surface dish, and the lifting mechanism is fixedly connected with the surface dish.
3. The chemical experimental extraction apparatus of claim 1, characterized in that: one side of the extraction container far from the stirring shaft is communicated with an upper-layer liquid discharge pipe, the upper-layer liquid discharge pipe is located at one end in the extraction container in a nested mode and is provided with a memory pipeline, the upper-layer liquid discharge pipe is located at one end outside the extraction container and is connected with an extraction box, a piston is arranged in the extraction box and is connected with a pull rod, a water outlet pipe is arranged at the bottom end of the extraction box, a traction rope is arranged on the memory pipeline and penetrates through the upper-layer liquid discharge pipe and then is connected with a holding handle.
4. The chemical experimental extraction apparatus of claim 1, characterized in that: mix fixedly connected with and mix the liquid board on the inside lateral wall of liquid container, mix the liquid board surface and seted up the feed liquor through-hole.
5. The chemical experimental extraction plant of claim 4, characterized in that: the two liquid mixing plates are symmetrically arranged inside the liquid mixing container, and the liquid mixing plates are of a central concave structure; the liquid inlet through holes are uniformly distributed on the liquid mixing plate.
6. The chemical experimental extraction apparatus of claim 1, characterized in that: mix liquid container top symmetry and install two the liquid inlet cup, the liquid inlet cup is made for transparent material, just the liquid inlet cup outer wall superscript is equipped with the scale.
7. The chemical experimental extraction apparatus of claim 1, characterized in that: a flowmeter is arranged on the liquid outlet pipe; and a liquid level meter is arranged in the extraction container.
8. The chemical experimental extraction apparatus of claim 1, characterized in that: the electric sliding block and the stirring motor are respectively connected with a switch through wires, and the switch is connected with a power supply through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232251.1A CN110917656A (en) | 2019-12-05 | 2019-12-05 | Chemical experiment extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232251.1A CN110917656A (en) | 2019-12-05 | 2019-12-05 | Chemical experiment extraction device |
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| Publication Number | Publication Date |
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| CN110917656A true CN110917656A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911232251.1A Pending CN110917656A (en) | 2019-12-05 | 2019-12-05 | Chemical experiment extraction device |
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| Country | Link |
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| CN (1) | CN110917656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879565A (en) * | 2020-07-30 | 2020-11-03 | 广西中医药大学附设中医学校(广西中医学校) | Novel sampler for pharmacy experiments |
| CN112451992A (en) * | 2020-12-19 | 2021-03-09 | 瞿柯晓 | Biomass material processing and extracting mechanism and extracting method thereof |
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| CN206063850U (en) * | 2016-09-20 | 2017-04-05 | 宁波大学 | A kind of chemical experiment extraction equipment |
| CN106834672A (en) * | 2017-04-10 | 2017-06-13 | 南昌首叶科技有限公司 | High efficiency rare-earth extraction equipment is used in a kind of rare earth processing |
| CN206660661U (en) * | 2017-04-19 | 2017-11-24 | 海宁纪亨保健食品有限公司 | Counterflow extraction device |
| CN207970494U (en) * | 2017-12-26 | 2018-10-16 | 江苏沃民环境科技有限公司 | A kind of device improving extraction reaction efficiency |
| CN108744589A (en) * | 2018-05-31 | 2018-11-06 | 荆门它山之石电子科技有限公司 | A kind of chemical experiment extraction detection device |
| CN208553219U (en) * | 2018-06-13 | 2019-03-01 | 昆明萃醍生物科技有限公司 | A kind of extraction equipment |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206063850U (en) * | 2016-09-20 | 2017-04-05 | 宁波大学 | A kind of chemical experiment extraction equipment |
| CN106834672A (en) * | 2017-04-10 | 2017-06-13 | 南昌首叶科技有限公司 | High efficiency rare-earth extraction equipment is used in a kind of rare earth processing |
| CN206660661U (en) * | 2017-04-19 | 2017-11-24 | 海宁纪亨保健食品有限公司 | Counterflow extraction device |
| CN207970494U (en) * | 2017-12-26 | 2018-10-16 | 江苏沃民环境科技有限公司 | A kind of device improving extraction reaction efficiency |
| CN108744589A (en) * | 2018-05-31 | 2018-11-06 | 荆门它山之石电子科技有限公司 | A kind of chemical experiment extraction detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879565A (en) * | 2020-07-30 | 2020-11-03 | 广西中医药大学附设中医学校(广西中医学校) | Novel sampler for pharmacy experiments |
| CN111879565B (en) * | 2020-07-30 | 2023-12-26 | 广西中医药大学附设中医学校(广西中医学校) | Novel sampler for pharmacy experiments |
| CN112451992A (en) * | 2020-12-19 | 2021-03-09 | 瞿柯晓 | Biomass material processing and extracting mechanism and extracting method thereof |
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