CN110917647B - Hierarchical extraction element of dahurian angelica leaf polysaccharide - Google Patents
Hierarchical extraction element of dahurian angelica leaf polysaccharide Download PDFInfo
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- CN110917647B CN110917647B CN201911119304.9A CN201911119304A CN110917647B CN 110917647 B CN110917647 B CN 110917647B CN 201911119304 A CN201911119304 A CN 201911119304A CN 110917647 B CN110917647 B CN 110917647B
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- 150000004676 glycans Chemical class 0.000 title claims abstract description 35
- 229920001282 polysaccharide Polymers 0.000 title claims abstract description 35
- 239000005017 polysaccharide Substances 0.000 title claims abstract description 35
- 241000213006 Angelica dahurica Species 0.000 title claims abstract description 22
- 238000000605 extraction Methods 0.000 title claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims abstract 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 abstract description 37
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 13
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 13
- 239000011425 bamboo Substances 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 2
- 244000082204 Phyllostachys viridis Species 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000341 volatile oil Substances 0.000 description 2
- 241000208173 Apiaceae Species 0.000 description 1
- 206010003402 Arthropod sting Diseases 0.000 description 1
- 201000000297 Erysipelas Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000024780 Urticaria Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000002398 materia medica Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000004792 oxidative damage Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- 230000003248 secreting effect Effects 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0269—Solid material in other moving receptacles
- B01D11/0273—Solid material in other moving receptacles in rotating drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention provides a grading extraction device for angelica dahurica leaf polysaccharide, which relates to the field of angelica dahurica and comprises a support, wherein the support is rotatably connected with a support rod, the support rod penetrates through a precipitation cylinder and extends into the precipitation cylinder, the interior of the support rod is hollow, the other end of the support rod is connected with a medicine bottle through a medicine adding mechanism, a collection mechanism is movably connected onto the precipitation cylinder, and the support rod is in transmission connection with a motor through the medicine adding mechanism. According to the invention, the medicine can be quantitatively added according to the extraction progress, so that the content of the polysaccharide solvent in the precipitation cylinder is changed, a certain polysaccharide can be precipitated, the medicine does not need to be manually measured and added, and the method is accurate and labor-saving; when the sedimentation cylinder rotates, the half-ball bag turns over under the action of gravity, and meanwhile, the solution in the collection mechanism flows back through the semipermeable membrane to enter the sedimentation cylinder for next-stage sedimentation, so that the collection is convenient; the pivoted deposits a section of thick bamboo and can take off the deposit of last one-level collection and can change collection mechanism by manual work or machinery when depositing the collection, and efficiency is higher.
Description
Technical Field
The invention relates to the field of radix angelicae, in particular to a grading extraction device for radix angelicae leaf polysaccharide.
Background
Radix Angelicae Dahuricae is a plant of Umbelliferae, and its traditional medicinal part is the root of its underground part, which is listed as the middle-grade product in Shen nong Ben Cao Jing, and has the effects of dispelling pathogenic wind and cold, inducing resuscitation and relieving pain, relieving swelling and pus, eliminating dampness and stopping leukorrhagia. In addition to the treatment of diseases, radix angelicae is also widely used for preparing spices, cosmetics, health care products and the like, and although the planting area of radix angelicae is large, the annual yield of roots of radix angelicae still cannot meet the requirement. Compared with the situation that the supply of the root is not in short supply, the overground part of the angelica dahurica is usually discarded or incinerated randomly, which not only wastes resources but also pollutes the environment. According to the plant genetic law and the distribution of secondary metabolites, the drugs with important pharmacological action are usually not limited to a certain organ, for dahurian angelica, the leaves of dahurian angelica can be recorded as early as the book of the materia medica of the book of: the modern clinic reports that the angelica dahurica leaves are used for treating bee sting are about bath erysipelas and urticaria and sore. The research of Zhongshi red and the like discovers that parts such as veins, petioles and the like of the angelica dahurica also have distributed secretory canals, which indicates that the angelica dahurica leaves possibly contain volatile oil substances, and the subject group members not only verify the situation through early pre-experiments, but also discover that the content of the volatile oil in the angelica dahurica leaves is high, and the angelica dahurica leaves have good in-vitro anti-oxidation effect (the occurrence of oxidative damage and inflammation, tumor and aging is closely related), are used as wastes, have large volume and rich resources, and have great development and utilization values, and the polysaccharide in the angelica dahurica leaves is a main substance which can be utilized by the angelica dahurica leaves.
However, because there are many kinds of polysaccharides in the angelica dahurica leaves, many steps are needed to extract a certain polysaccharide in the polysaccharides in actual operation, and the operation is laborious.
Disclosure of Invention
The invention aims to provide a grading extraction device for angelica dahurica leaf polysaccharide, which aims to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a hierarchical extraction element of angelica dahurica leaf polysaccharide, includes the support, the support rotates with branch to be connected, branch runs through and deposits a section of thick bamboo and extends to and deposit inside the section of thick bamboo, the inside cavity of branch, the branch other end passes through dosing mechanism with the medicine bottle and is connected, swing joint has collection mechanism on the section of thick bamboo that deposits, branch passes through dosing mechanism and is connected with motor drive.
Preferably, the outer side of the support rod is fixedly connected with a threaded column, and the threaded column is in threaded connection with the precipitation cylinder.
Preferably, the precipitation cylinder is cylindrical, an internal thread sleeve is fixedly connected to the center of one end of the precipitation cylinder, at least two external thread sleeves in an annular array are arranged on the side face of the precipitation cylinder, and the external thread sleeves are in threaded connection with the collection mechanism.
Preferably, the collecting mechanism comprises a threaded cylinder, the threaded cylinder is connected with an external thread sleeve, a hemispherical sac connected in a rotating mode is arranged in the threaded cylinder, a through hole is formed in the hemispherical sac, and the hemispherical sac is coated with a semipermeable membrane.
Preferably, the inner edge of the screw thread cylinder is provided with a sliding sheet.
Preferably, the motor is fixedly connected with a dosing rod, the dosing rod is provided with intermittent threads, the dosing rod is fixedly connected with a first bevel gear, and the first bevel gear is meshed with a second bevel gear fixedly connected to the support rod.
Preferably, the dosing rod is rotatably connected with a dosing plate, the dosing plate is in sliding connection with the inner side of the medicine bottle, the dosing rod between the dosing bottle and the first bevel gear is sleeved with a compression spring, a rod hole is formed in the joint of the top end of the dosing bottle and the supporting rod, and the rod hole is rotatably connected with the supporting rod.
The invention has the beneficial effects that:
according to the invention, the medicine adding device is controlled by the motor to add medicine, and the medicine can be quantitatively added according to the extraction progress, so that the content of the polysaccharide solvent in the precipitation cylinder is changed, a certain polysaccharide can be precipitated, the medicine is not required to be manually measured and added, and the method is accurate and labor-saving; the precipitated polysaccharide enters a collecting mechanism under the action of gravity, a rotatable half-balloon is arranged in the collecting mechanism and used for collecting the precipitate, the half-balloon is coated with a semipermeable membrane, when a precipitating cylinder rotates, the half-balloon overturns under the action of gravity, and meanwhile, solution in the collecting mechanism flows back into the precipitating cylinder through the semipermeable membrane to carry out next-stage precipitation, so that the collection is convenient; the pivoted deposits a section of thick bamboo and can take off the deposit of last one-level collection and can change collection mechanism by manual work or machinery when depositing the collection, and efficiency is higher.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a settling cartridge in accordance with the present invention;
FIG. 3 is a cross-sectional view of the collection mechanism of the present invention;
FIG. 4 is a schematic structural view of a strut of the present invention;
FIG. 5 is a front view of the vial of the present invention;
reference numerals: 1. a support; 2. a strut; 201. a threaded post; 3. a settling cylinder; 301. an internal thread sleeve; 302. an external thread sleeve; 4. a collection mechanism; 401. a half balloon; 4011. a through hole; 4012. a rotating shaft; 402. a threaded barrel; 403. sliding blades; 404. a semi-permeable membrane; 5. a motor; 6. a medicine adding rod; 601. intermittent threading; 7. a medicine bottle; 701. a rod hole; 8. a second bevel gear; 9. a first bevel gear; 10. a spring; 11. a slide rail; 12. a medicine adding plate.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in figures 1-5, a grading extraction device for angelica dahurica leaf polysaccharide comprises a support 1, the support 1 is rotatably connected with a support rod 2, the support rod 2 penetrates through a precipitation cylinder 3 and extends into the precipitation cylinder 3, the support rod 2 is hollow, the other end of the support rod 2 is connected with a medicine bottle 7 through a medicine adding mechanism, a collecting mechanism 4 is movably connected on the precipitation cylinder 3, the support rod 2 is in transmission connection with a motor 5 through the medicine adding mechanism, a threaded column 201 is fixedly connected on the outer side of the support rod 2, the threaded column 201 is in threaded connection with the precipitation cylinder 3, the precipitation cylinder 3 is cylindrical, an inner threaded sleeve 301 is fixedly connected at the center of one end of the precipitation cylinder 3, at least two outer threaded sleeves 302 in an annular array are arranged on the side surface of the precipitation cylinder 3, the outer threaded sleeves 302 are in threaded connection with the collecting mechanism 4, the collecting mechanism 4 comprises a threaded cylinder 402, the threaded cylinder 402 is connected with the outer threaded sleeve 302, a rotatably connected hemisphere capsule 401 is arranged in the threaded cylinder 402, be equipped with through-hole 4011 on half sacculus 401, be wrapped up in the pellicle 404 on the hemisphere bag 401, the internal edge of screw thread section of thick bamboo 402 is equipped with gleitbretter 403.
When extracting sugar, a polysaccharide solution is placed in a precipitation cylinder 3, then a motor 5 is started, the motor 5 rotates at regular time, liquid medicine in a medicine bottle 7 enters the precipitation cylinder 3 through a hollow supporting rod 2, after the liquid medicine enters the precipitation cylinder 3 due to different solubility of different polysaccharides in ethanol or acetone solutions with different concentrations, a certain polysaccharide in the solution with multiple polysaccharides in the precipitation cylinder 3 is precipitated, the precipitated polysaccharide enters a threaded cylinder 402 at the bottom of the precipitation cylinder 3, the precipitate enters a half balloon 401 through a scribing sheet, as the plane part of the half balloon 401 is rotatably connected with the threaded cylinder 402 through a rotating shaft 4012, under the action of gravity, the concave surface of the half balloon 401 is upward and is coated with a semipermeable membrane 404, so that the solution can pass through, the precipitate is retained on the semipermeable membrane 404, extraction of a polysaccharide is completed, and the liquid medicine is intermittently added into the precipitation cylinder 3 along with the rotation of the motor 5, can make the polysaccharide constantly separate, deposit a section of thick bamboo 3 simultaneously and rotate the screw thread section of thick bamboo 402 transform that makes a section of thick bamboo 3 bottoms of deposiing, thereby make different polysaccharides deposit in the screw thread section of thick bamboo 402 of difference, screw thread section of thick bamboo 402 rotates the in-process along with a section of thick bamboo 3 of deposiing, the concave surface of half sacculus 401 makes progress all the time under the action of gravity, avoid the polysaccharide to deposit and drop, can make solution pass through pellicle 404 backward flow simultaneously and get into in depositing a section of thick bamboo 3, take off polysaccharide collection mechanism 4 and change can constantly obtain different polysaccharides.
Example 2
As shown in figures 1-5, a grading extraction device for angelica dahurica leaf polysaccharide comprises a support 1, the support 1 is rotatably connected with a support rod 2, the support rod 2 penetrates through a precipitation cylinder 3 and extends to the inside of the precipitation cylinder 3, the support rod 2 is hollow, the other end of the support rod 2 is connected with a medicine bottle 7 through a medicine adding mechanism, a collecting mechanism 4 is movably connected on the precipitation cylinder 3, the support rod 2 is in transmission connection with a motor 5 through the medicine adding mechanism, a medicine adding rod 6 is fixedly connected on the motor 5, an intermittent thread 601 is arranged on the medicine adding rod 6, a first bevel gear 9 is fixedly connected on the medicine adding rod 6, the first bevel gear 9 is meshed with a second bevel gear 8 fixedly connected on the support rod 2, a medicine adding plate 12 is rotatably connected on the medicine adding rod 6, the medicine adding plate 12 is in sliding connection with the inner side of the medicine bottle 7, a compression spring 10 is sleeved on the medicine adding rod 6 between the medicine adding bottle 7 and the first bevel gear 9, a rod hole 701 is arranged at the connection position of the top end of the medicine adding bottle 7 and the support rod 2, the rod hole 701 is rotatably connected to the rod 2.
When the motor 5 rotates, the medicine adding rod 6 fixedly connected with the output shaft of the motor 5 rotates, the intermittent screw 601 arranged on the medicine adding rod 6 is connected with the intermittent screw 601 in the middle of the medicine adding plate 12, when the medicine adding rod 6 is connected with the medicine adding plate 12 through the screw, the side surface of the medicine adding plate 12 is connected with the slide rail 11 in a sliding way, when the medicine adding rod 6 rotates, the medicine adding plate 12 moves upwards to enable the medicine liquid in the medicine bottle 7 to enter the precipitation cylinder 3 through the support rod 2, when the screw in the middle of the medicine adding plate 12 is separated from the medicine adding rod 6, the medicine adding plate 12 moves upwards under the elastic force of the compression spring 10 to enable a certain amount of the medicine liquid to enter the precipitation cylinder 3, so that the concentration of the medicine liquid in the precipitation cylinder 3 is quantitatively increased, the amount of the medicine liquid added each time can be set through the gap distance between the intermittent screws 601, thereby accurately controlling the concentration of the medicine liquid, so that the concentration of the medicine liquid in the precipitation cylinder 3 is gradually increased repeatedly, different polysaccharides are gradually precipitated and separated, when the motor 5 rotates, the first bevel gear 9 fixedly connected with the dosing rod 6 rotates to drive the second bevel gear 8 meshed with the first bevel gear 9 to rotate, the second bevel gear 8 is fixedly connected with the supporting rod 2, and the supporting rod 2 rotates to enable the precipitation cylinder 3 in threaded connection with the supporting rod 2 to rotate, so that the collection mechanisms 4 connected to the precipitation cylinder 3 are switched, and different polysaccharides are precipitated in different collection mechanisms 4.
The working principle is as follows: when the device is used, a solution of polysaccharide is placed in the precipitation cylinder 3, the precipitation cylinder 3 is connected with the supporting rod 2, the supporting rod 2 is connected with the medicine bottle 7, then the motor 5 is started, the motor 5 drives the medicine adding rod 6 to rotate, the medicine adding plate 12 is lifted by matching with the compression spring 10, the internal space of the medicine bottle 7 is compressed, so that the medicine enters the precipitation cylinder 3 through the supporting rod 2, the supporting rod 2 is driven to rotate simultaneously, the precipitation cylinder 3 rotates, the collection mechanism 4 is converted, different polysaccharides are precipitated in different threaded cylinders 402, the threaded cylinders 402 are connected with the external thread sleeves 302 of the precipitation cylinder 3, the collection mechanism 4 can be conveniently taken down and replaced, the device can perform fractional extraction, the operation is convenient and simple, and the extraction efficiency is improved.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a hierarchical extraction element of dahurian angelica leaf polysaccharide, includes support (1), its characterized in that: the support (1) is rotatably connected with a support rod (2), the support rod (2) penetrates through the sedimentation cylinder (3) and extends into the sedimentation cylinder (3), the support rod (2) is hollow, the other end of the support rod (2) is connected with a medicine bottle (7) through a medicine adding mechanism, the sedimentation cylinder (3) is movably connected with a collecting mechanism (4), and the support rod (2) is in transmission connection with a motor (5) through the medicine adding mechanism;
the outer side of the supporting rod (2) is fixedly connected with a threaded column (201), and the threaded column (201) is in threaded connection with the settling cylinder (3);
the sedimentation cylinder (3) is cylindrical, an internal thread is fixedly connected to the center of one end of the sedimentation cylinder (3), at least two external threads in an annular array are arranged on the side surface of the sedimentation cylinder (3), and the external threads are in threaded connection with the collection mechanism (4);
the collecting mechanism (4) comprises a threaded cylinder (402), the threaded cylinder (402) is connected with an external thread, a half balloon (401) which is rotatably connected is arranged in the threaded cylinder (402), a through hole (4011) is formed in the half balloon (401), and a semi-permeable membrane (404) is coated on the half balloon (401);
the inner edge of the threaded barrel (402) is provided with a sliding sheet (403).
2. The grading extraction device of angelica dahurica leaf polysaccharide according to claim 1, characterized in that: fixedly connected with adds pencil (6) on motor (5), be provided with intermittent type screw thread (601) on adding pencil (6), add fixedly connected with first bevel gear (9) on pencil (6), first bevel gear (9) and branch (2) go up fixedly connected's second bevel gear (8) meshing.
3. The angelica dahurica leaf polysaccharide fractional extraction device of claim 2, wherein: the medicine adding rod (6) is rotatably connected with a medicine adding plate (12), the medicine adding plate (12) is connected with the inner side of a medicine bottle (7) in a sliding mode, a compression spring (10) is sleeved on the medicine adding rod (6) between the medicine bottle (7) and a first bevel gear (9), a rod hole (701) is formed in the joint of the top end of the medicine bottle (7) and a supporting rod (2), and the rod hole (701) is rotatably connected with the supporting rod (2).
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| CN113908583B (en) * | 2021-09-08 | 2024-09-06 | 南京市蓝业科技有限公司 | Device for extracting chlorophyll from spinach leaves |
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| JPS62143903A (en) * | 1985-12-17 | 1987-06-27 | Mitsui Toatsu Chem Inc | Sequential extraction and separation of polymer |
| CN104436747B (en) * | 2014-11-18 | 2016-05-25 | 中石化上海工程有限公司 | A kind of method that automatic extrusion type multiple stage continuous adverse current extracts and its device |
| CN106823449A (en) * | 2016-12-30 | 2017-06-13 | 天津横天生物科技有限公司 | A kind of traditional Chinese medicine extraction device |
| CN206463532U (en) * | 2017-01-19 | 2017-09-05 | 杭州欧弟科技有限公司 | A kind of efficient ultrasonic extraction element and ultrasonic wave extraction unit |
| CN206763151U (en) * | 2017-04-01 | 2017-12-19 | 昆明理工大学 | A kind of flotation device automatic medicine adding apparatus |
| CN207659511U (en) * | 2017-12-28 | 2018-07-27 | 苏州仓松金属制品有限公司 | It is a kind of that there is automatic plus powder function melt refining treatment system |
| CN209128070U (en) * | 2018-11-27 | 2019-07-19 | 王玫玫 | A kind of quantitative dosing device of sewage treatment |
| CN110223795B (en) * | 2019-06-21 | 2020-10-16 | 信丰县包钢新利稀土有限责任公司 | Rare earth extraction waste water chemical treatment device |
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