CN112642592A - Flotation device for micron-sized materials - Google Patents
Flotation device for micron-sized materials Download PDFInfo
- Publication number
- CN112642592A CN112642592A CN202011387080.2A CN202011387080A CN112642592A CN 112642592 A CN112642592 A CN 112642592A CN 202011387080 A CN202011387080 A CN 202011387080A CN 112642592 A CN112642592 A CN 112642592A
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- China
- Prior art keywords
- flotation
- micron
- tank
- flotation device
- sized particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005188 flotation Methods 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 title abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 48
- 238000001802 infusion Methods 0.000 claims abstract description 12
- 238000012216 screening Methods 0.000 claims abstract description 11
- 239000005388 borosilicate glass Substances 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011152 fibreglass Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000499 gel Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000004005 microsphere Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000012800 visualization Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 4
- 238000001132 ultrasonic dispersion Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002414 normal-phase solid-phase extraction Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a flotation device which comprises a plurality of flotation tanks, a speed-regulating infusion pump and corresponding pipelines for connecting the plurality of flotation tanks and a constant-speed infusion pump; the invention uses high borosilicate glass as the material of the flotation device, and utilizes the difference between the gravity and the buoyancy of the material to be screened and the action of the fluid dynamics principle to screen the particles with micron particle size. The device has the characteristics of screening visualization and simple and convenient method; can be used for preparing materials in the fields of chromatographic packing, biological analysis, clinical medicine and the like.
Description
Technical Field
The invention relates to the technical field of particle screening, in particular to a flotation device for micron-sized materials.
Background
Material chemistry is a leading discipline developed in recent decades and is also a branch of materials science. The chemical properties of the novel material in the preparation, production, application and waste processes are researched, the research range covers the whole material field, and the chemical properties of various application materials including inorganic materials and organic materials are researched.
At present, the requirements for the application of materials in various fields are becoming more and more stringent, especially the requirements for particle size in the fields of analytical chemistry, biological analysis and medical diagnostics. Chromatographic packing for HPLC requires smaller and smaller CV values in the particle size range; solid phase extraction packing is also increasingly demanding in terms of stability of material separation, as well as inter-modal differences and particle uniformity of measurement. In the biomedical field, magnetic beads are used for nucleic acid extraction, and the CV value of the magnetic beads is generally required to be less than 5%. The prior particle size screening methods mainly comprise filtration, air separation and the like. However, none of them can meet the particle size range requirements of the current biomedical field. Therefore, it is necessary to invent a device for screening uniform microparticles. Furthermore, the batches of material are small and visualization of the equipment used is particularly important in order to reduce losses during the screening process.
The invention screens the micron-sized particles by utilizing the difference between the gravity and the buoyancy of the material to be screened under the action of the fluid dynamics principle, and the device has the characteristics of visual screening and simple and convenient method.
Disclosure of Invention
The invention provides a micron-sized uniform-granularity screening device to meet the actual needs and overcome the defects of the prior art.
The technical scheme of the invention is as follows:
the flotation device comprises a plurality of flotation tanks, a speed-regulating or constant-speed infusion pump and corresponding pipelines for connecting the flotation tanks and the constant-speed infusion pump.
As a further improvement of an embodiment of the invention, the flotation device comprises a support frame for supporting the plurality of flotation tanks.
As a further improvement of the embodiment of the invention, the flotation tank is a glass tank, and the glass tank is made of high borosilicate glass, common pressure-resistant glass, organic glass or glass fiber reinforced plastic.
In a further improvement of the embodiment of the present invention, the flotation tank is a rigid plastic tank made of rigid PP or rigid PE, but the material is not limited to the above material.
As a further improvement of the embodiment of the present invention, the supporting frame is made of metal, and the metal is made of iron, aluminum, common steel or stainless steel.
As a further improvement of the embodiment of the present invention, the variable speed infusion pump may be a peristaltic pump.
As a further improvement of the embodiment of the present invention, the pipeline is a silicone hose, a fluorine hose, a PP pipe or a PVC hose.
As a further improvement of the embodiment of the invention, the pipeline is sequentially connected with the constant-speed infusion pump, the first flotation tank, the second flotation tank and the third flotation tank; the volumes of the first flotation tank, the second flotation tank and the third flotation tank are sequentially increased.
The invention has the following beneficial effects:
the method can screen particles with different particle sizes under the action of external force by utilizing the difference between the gravity and the buoyancy of the substance to be screened, and has the characteristics of simple and convenient screening method and operation by utilizing the fluid dynamics principle.
Drawings
Fig. 1 is a schematic structural diagram of a flotation device for micron-sized materials according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Unless otherwise specified, the reagents used in the following examples are commercially available from normal sources.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention provides a micron-sized uniform-granularity screening device.
The technical scheme of the invention is as follows:
the flotation device comprises a plurality of flotation tanks, a speed-regulating or constant-speed infusion pump and corresponding pipelines for connecting the flotation tanks and the speed-regulating or constant-speed infusion pump.
As a further improvement of an embodiment of the invention, the flotation device comprises a support frame for supporting the plurality of flotation tanks.
As a further improvement of the embodiment of the invention, the flotation tank is a glass tank, and the glass tank is made of high borosilicate glass, common pressure-resistant glass, organic glass or glass fiber reinforced plastic.
As a further improvement of the embodiment of the present invention, the flotation tank is a rigid plastic tank, and the material of the rigid plastic tank is, but not limited to, rigid PP, rigid PE resin, or the like.
As a further improvement of the embodiment of the present invention, the supporting frame is made of metal, and the metal is made of iron, aluminum, common steel or stainless steel.
As a further improvement of the embodiment of the present invention, the adjustable-speed infusion pump is a peristaltic pump.
As a further improvement of the embodiment of the present invention, the pipeline is a silicone hose, a fluorine hose, a PP pipe or a PVC hose.
As a further improvement of the embodiment of the invention, the pipeline is sequentially connected with the constant-speed infusion pump, the first flotation tank, the second flotation tank and the third flotation tank; the volumes of the first flotation tank, the second flotation tank and the third flotation tank are sequentially increased.
Example 1
100 g of micron particles to be screened are placed in a beaker, 1L of water is added into the beaker, ultrasonic dispersion is carried out for 1-2 hours in water bath ultrasonic, when solid particles are uniformly dispersed in the water, the micron particles are poured into a first flotation tank in the figure 1, the flow rate of a pump is set at 35 ml/min, the pump is stopped after the equipment running time is 30 hours under the condition of unchanged conditions, liquid in the flotation tank is placed into a barrel marked with the numbers of 1, 2 and 3 (namely the first flotation tank, the second flotation tank and the third flotation tank), standing is carried out for 16 hours, supernatant is discarded, residual substances in the barrel are filtered, 2 micron silica gel particles are filtered, whether the particle size is qualified or not is observed under a microscope, and the micron silica gel particles are dried for standby after being qualified detection.
Example 2
100 g of micron particles to be screened are placed in a beaker, 1L of water is added into the beaker, ultrasonic dispersion is carried out for 1-2 hours in water bath ultrasonic, when solid particles are uniformly dispersed in the water, the micron particles are poured into a first flotation tank in the figure 1, the flow rate of a pump is set at 15 ml/min, the pump is stopped after the equipment running time is 30 hours under the condition of unchanged conditions, liquid in the flotation tank is placed into a barrel marked with the numbers of 1, 2 and 3 (namely the first flotation tank, the second flotation tank and the third flotation tank), standing is carried out for 16 hours, supernatant is discarded, residual substances in the barrel are filtered, whether the particle size of the filtered 1 micron silica gel particles is qualified or not is observed under a microscope, and the particles are dried for standby after being qualified detection.
Example 3
100 g of micron particles to be screened are placed in a beaker, 1L of water is added into the beaker, ultrasonic dispersion is carried out for 1-2 hours in water bath ultrasonic, when solid particles are uniformly dispersed in the water, the micron particles are poured into a first flotation tank in the figure 1, the flow rate of a pump is set at 15 ml/min, the pump is stopped after the equipment running time is 30 hours under the condition of unchanged conditions, liquid in the flotation tank is placed into a barrel marked with 1, 2 and 3 marks (namely the first flotation tank, a second flotation tank and a third flotation tank), standing is carried out for 16 hours, supernatant is discarded, residual substances in the barrel are filtered, 5 micron PS resin particles are filtered under a microscope to observe whether the particle size is qualified, and the PS resin particles are dried after being qualified.
Example 4
100 g of micron particles to be screened are placed in a beaker, 1L of water is added into the beaker, ultrasonic dispersion is carried out for 1-2 hours in water bath ultrasonic, when solid particles are uniformly dispersed in the water, the solid particles are poured into 3 tank bodies in figure 1, the flow rate of a pump is set at 35 ml per minute, the pump is stopped after the equipment running time is 30 hours under the condition of unchanged conditions, the liquid in a flotation tank is placed into a barrel marked with the numbers of 1, 2 and 3, the liquid is kept stand for 16 hours, supernatant liquid is discarded, residual substances in the barrel are filtered, whether the particle size of the filtered 2 micron silica gel particles is qualified or not is observed under a microscope, and the particles are dried after being qualified through detection for later use.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept of the present invention, which falls into the protection scope of the present invention.
Claims (11)
1. The utility model provides a micron order granule flotation device, flotation device includes a plurality of flotation tank, at the uniform velocity transfer pump and connects the corresponding pipeline of a plurality of flotation tank and speed governing transfer pump.
2. The micron-sized particle flotation device of claim 1, wherein the flotation device includes a support frame for supporting the plurality of flotation tanks.
3. The micron-sized particle flotation device according to claim 1, wherein the flotation tank is a glass tank made of borosilicate glass, common pressure-resistant glass, organic glass or glass fiber reinforced plastic.
4. The micron-sized particle flotation device according to claim 1, wherein the flotation tank is a rigid plastic tank body, and the rigid plastic tank body is made of rigid PP or rigid PE.
5. The micron-sized particle flotation device according to claim 1, wherein the constant-speed infusion pump is a peristaltic pump.
6. The micron-sized particle flotation device according to claim 1, wherein the pipeline is a silica gel hose, a fluorine gel hose, a PP pipe or a PVC hose.
7. The micron-sized particle flotation device according to claim 1, wherein the pipeline is connected with the constant-speed infusion pump, a first flotation tank, a second flotation tank and a third flotation tank in sequence; the volumes of the first flotation tank, the second flotation tank and the third flotation tank are sequentially increased.
8. The apparatus of claim 1, wherein the flotation solution is introduced into the first tank from a lower opening of the first tank, the flotation solution slowly rises from bottom to top, and the particles are suspended by the turbulence of the flow.
9. The micron-sized particle flotation device according to claim 2, wherein the support frame is made of metal, and the metal is made of iron, aluminum, common steel or stainless steel.
10. The micron-sized particle flotation device according to any one of claims 1 to 9, wherein the device is used for screening micron magnetic beads in a particle size range, and flotation of magnetic beads in the particle size range of 1-100um, and the CV value is controllable.
11. The micron-sized particle flotation device according to any one of claims 1 to 10, wherein the device is used for screening resin and silica gel microspheres, the particle size ranges from 1 um to 1000um, and the CV value is controllable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011387080.2A CN112642592A (en) | 2020-12-02 | 2020-12-02 | Flotation device for micron-sized materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011387080.2A CN112642592A (en) | 2020-12-02 | 2020-12-02 | Flotation device for micron-sized materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112642592A true CN112642592A (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011387080.2A Pending CN112642592A (en) | 2020-12-02 | 2020-12-02 | Flotation device for micron-sized materials |
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| Country | Link |
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| CN (1) | CN112642592A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120018374A1 (en) * | 2009-04-09 | 2012-01-26 | Youfeng Sun | Sewage Treatment Process and System |
| CN106179773A (en) * | 2015-05-06 | 2016-12-07 | 中国科学院烟台海岸带研究所 | The continuous flow separation flotation unit of a kind of microparticle plastics and method |
| CN107364041A (en) * | 2017-08-16 | 2017-11-21 | 河海大学 | A kind of micro- flotation of Plastics separator and its application |
| EP3272421A1 (en) * | 2016-07-23 | 2018-01-24 | Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung | Separator for the fluid-based separation of microplastic particles from sediments and use of the separator |
| CN108636618A (en) * | 2018-04-20 | 2018-10-12 | 中南大学 | Experiment multistage mineral flotation unit and its application process |
| CN208526984U (en) * | 2018-06-13 | 2019-02-22 | 南开大学 | The separating flotation device of micro- plastics in ambient soil and sediment sample |
| CN109540641A (en) * | 2018-12-15 | 2019-03-29 | 华南理工大学 | The separating-purifying device and application method of micro- plastics in marine sediment |
| CN109655321A (en) * | 2018-11-07 | 2019-04-19 | 天津大学 | The floating and enriching device and its screening technique of micro- plastics |
| CN110773331A (en) * | 2019-09-30 | 2020-02-11 | 河南大学 | Enrichment device for separating micro-plastics in environmental soil and sediments |
| CN210617030U (en) * | 2019-09-03 | 2020-05-26 | 安徽工业大学 | Micro-plastic flotation device |
| CN111337327A (en) * | 2020-03-26 | 2020-06-26 | 河北大学 | Method and equipment for extracting farmland soil micro-plastic |
| CN111420794A (en) * | 2020-03-31 | 2020-07-17 | 陕西科技大学 | Device and method for separating and extracting micro-plastic in soil |
-
2020
- 2020-12-02 CN CN202011387080.2A patent/CN112642592A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120018374A1 (en) * | 2009-04-09 | 2012-01-26 | Youfeng Sun | Sewage Treatment Process and System |
| CN106179773A (en) * | 2015-05-06 | 2016-12-07 | 中国科学院烟台海岸带研究所 | The continuous flow separation flotation unit of a kind of microparticle plastics and method |
| EP3272421A1 (en) * | 2016-07-23 | 2018-01-24 | Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung | Separator for the fluid-based separation of microplastic particles from sediments and use of the separator |
| CN107364041A (en) * | 2017-08-16 | 2017-11-21 | 河海大学 | A kind of micro- flotation of Plastics separator and its application |
| CN108636618A (en) * | 2018-04-20 | 2018-10-12 | 中南大学 | Experiment multistage mineral flotation unit and its application process |
| CN208526984U (en) * | 2018-06-13 | 2019-02-22 | 南开大学 | The separating flotation device of micro- plastics in ambient soil and sediment sample |
| CN109655321A (en) * | 2018-11-07 | 2019-04-19 | 天津大学 | The floating and enriching device and its screening technique of micro- plastics |
| CN109540641A (en) * | 2018-12-15 | 2019-03-29 | 华南理工大学 | The separating-purifying device and application method of micro- plastics in marine sediment |
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Application publication date: 20210413 |