CN206604224U - A kind of centrifugal force microfluid extraction equipment - Google Patents
A kind of centrifugal force microfluid extraction equipment Download PDFInfo
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- CN206604224U CN206604224U CN201720341863.4U CN201720341863U CN206604224U CN 206604224 U CN206604224 U CN 206604224U CN 201720341863 U CN201720341863 U CN 201720341863U CN 206604224 U CN206604224 U CN 206604224U
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Abstract
Centrifugal force microfluid extraction equipment described in the utility model includes rotor, outer barrel, motor, support shaft, bearing, aqueous phase feed pipe, organic phase feed pipe, submerged soil, the fixed plate of outer barrel positioning and support system；The rotor is made up of extraction section, diversion section and motor connection section successively from bottom to up, extraction section is cylinder, the external cylindrical surface of extraction section is provided with miniature guiding gutter, and rotor is made using hydrophobic material or the external cylindrical surface of its extraction section carries out surface modification using hydrophobically modified dose；The outer barrel is cylinder, and the internal diameter of outer barrel is more than the external diameter of rotor extraction section, and outer barrel is made using hydrophilic material or the inwall of outer barrel carries out surface modification using Hydrophilic modification agent.Centrifugal force microfluid extraction equipment described in the utility model can improve treating capacity, and the manufacture craft requirement for reducing device amplification and the stability for improving operation on the premise of high mass transfer efficiency is kept.
Description
Technical field
The utility model belongs to chemical industry liquid-liquid extraction field, more particularly to a kind of centrifugal force microfluid extraction equipment.
Background technology
Liquid-liquid extraction, is to have different solubility to be grasped come the unit of separating mixture in a solvent using component in system
Make, it is widely used in the industry such as chemistry, metallurgy, food.Extraction is compared with other separate the method for solution component, and advantage is
Normal-temperature operation, saves the energy, solid, gas is not related to, easy to operate.
At present, being commercially used for the device of extraction mainly has extraction tower, mixer-settler, extraction centrifuge etc., but these
Extraction equipment is often complicated, bulky, high energy consumption, inefficiency etc., if therefore having and a kind of efficiently and taking up an area less
Extraction equipment, will more conform to industrial diversified demand.
Microfluid extraction equipment, refers to a kind of by special micro-processing technology, the characteristic dimension of inside unit structure
In a few micrometers to hundreds of micrometer ranges, realize that component is transferred to out of a kind of solvent in the confined space of this minute yardstick another
Plant the micromodule equipment of quick separating in solvent.Microfluid extraction equipment has short bigger serface, extraction time, efficiency high, energy
Low advantage is consumed, therefore, microfluid extraction equipment can overcome many problems of traditional extraction equipment, before good development
Scape.
China Patent Publication No. CN201510538000.1 discloses a kind of method of microchannel extracting rare-earth element, described
Method be by organic phase compared with aqueous phase is according to certain with certain volume flow velocity by microreactor microchannel in carry out normal temperature
Extraction, the microchannel of microreactor is biparting shape, single rectangle, interdigital, circle or double square cross section.The list of such a method
Level extraction efficiency is high, but treating capacity very little, only 0.033~2.5ml/min, and it mentions by multiple microchannels and joint group
Close to improve the treating capacity of microchannel, however, the in parallel of microchannel requires that higher, flow distribution of fluid is more multiple to manufacture craft
Miscellaneous, operation less stable.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art there is provided a kind of centrifugal force microfluid extraction equipment,
To improve treating capacity on the premise of high mass transfer efficiency is kept, and reduce the manufacture craft requirement of device amplification and improve operation
Stability.
In order to achieve the above object, the utility model provides following technical scheme：
Centrifugal force microfluid extraction equipment described in the utility model, including rotor, outer barrel, motor, support shaft, bearing,
Aqueous phase feed pipe, organic phase feed pipe, submerged soil, the fixed plate of outer barrel positioning and support system；The rotor is from bottom to up
It is made up of successively extraction section, diversion section and motor connection section, extraction section is cylinder, and the external cylindrical surface of extraction section is provided with miniature
Guiding gutter, bottom center are provided with the first centre bore combined with bearing and support shaft, and diversion section is up-small and down-big circular cone
Platform shape, motor connection section is cylinder, and rotor is using the external cylindrical surface of hydrophobic material making or its extraction section using hydrophobic
Sex modification agent carries out surface modification；The outer barrel is cylinder, and the internal diameter of outer barrel is more than the external diameter of rotor extraction section, and outer barrel
Internal diameter and the difference of external diameter of rotor extraction section be 0.1~0.9mm, the height of outer barrel be more than rotor extraction section height,
Less than the whole height of rotor, outer barrel is made using hydrophilic material or the inwall of outer barrel carries out table using Hydrophilic modification agent
Face is modified；The support system includes base, footstock, column and supporting leg, and column is two, and two root posts are separated by a spacing and fixed
In the top surface of base, supporting leg at least two is separately mounted to the bottom surface of base, footstock be placed in the top surface of two root posts and with
Two root posts are connected；The bearing is at least one, and the side wall of the submerged soil is provided with outage；Above-mentioned each component and part
Combination：The submerged soil is arranged on the base top surface of support system and between two root posts, and the support shaft is located at
It is connected in submerged soil and with submerged soil bottom wall；The bearing is arranged in support shaft, and the rotor passes through in extraction section bottom
The first centre bore set by center portion position is combined with bearing and support shaft, has one between extraction section bottom and submerged soil bottom wall after combination
There is a spacing between the first centre bore bottom at the top of spacing, support shaft；The fixed plate of outer barrel positioning is connected with column, institute
Outer sleeve is stated mounted in the extraction section of rotor and fixed plate should be positioned by outer barrel and realize determining for outer barrel with rotor coaxial line
Position and fixation；The motor is arranged on the footstock of support system, and motor power output shaft passes through the motor of footstock and rotor
Linkage section is connected；The aqueous phase feed pipe and organic phase feed pipe are arranged on the column of support system, and installation site should make water
The extraction section of phase feed pipe, the outlet end of organic phase feed pipe higher than rotor and outer rim and top surface positioned at diversion section bottom surface
Between outer rim and do not contact the conical surface of diversion section.
The set miniature preferred spiral shape of guiding gutter on above-mentioned centrifugal force microfluid extraction equipment, the external cylindrical surface of its extraction section
Or parallel to the stripe-shaped of extraction section axis, the width of miniature guiding gutter is that 0.2~1mm, depth are 0.1~0.5mm.
Above-mentioned centrifugal force microfluid extraction equipment, the preferably basal diameter of truncated cone diversion section and cylindrical extraction section
Diameter is identical, and the bottom surface of truncated cone diversion section and the angle of the conical surface are α, 5 °≤α≤60 °.
Above-mentioned centrifugal force microfluid extraction equipment, the fixed plate of its outer barrel positioning is two sets, is defined as the positioning of the first outer barrel
The fixed fixed plate of plate and the second outer barrel positioning, two sets of fixed plate structures of outer barrel positioning are identical, and semicircle is provided with by two
The lath composition of v notch v, the diameter of the semicircular indentations match with the external diameter of outer barrel, the first outer barrel positioning fixation plate and the
Short transverse of the fixed plate of two outer barrels positioning along column is separated by a spacing on column.
Above-mentioned centrifugal force microfluid extraction equipment, its aqueous phase feed pipe and organic phase feed pipe can be arranged on same root post
On, it can also be separately mounted in two root posts；The outlet end of aqueous phase feed pipe and organic phase feed pipe is cantilevered mounting means
Or supported by the barrel of outer barrel.
Above-mentioned centrifugal force microfluid extraction equipment, the preferred stainless steel of hydrophilic material or quartz glass, hydrophily is repaiied
It is 10% sodium hydrate aqueous solution to adorn the preferred dimethylformamide of agent or mass concentration；The preferred polyphenyl second of hydrophobic material
Alkene, lucite, polytetrafluoroethylene (PTFE) or density are 941~960kg/m3Polyethylene, hydrophobically modified dose of preferred poly dimethyl
Siloxanes or octadecyl trichlorosilane alkane.
Micro- extraction is carried out using the utility model microfluid extraction equipment, operating procedure is as follows：
(1) start motor, make the power output shaft of motor drive rotor to rotate；
(2) by aqueous phase and organic phase respectively by aqueous phase feed pipe and organic phase feed tube, dropped down onto under two-phase liquid
On the diversion section conical surface of rotor, got rid of under the influence of centrifugal force to the inwall of outer barrel, then flow into outer barrel and rotor
In the miniature guiding gutter of annular gap and extraction section between extraction section, by with hydrophobic extraction section external cylindrical surface and tool
There is hydrophilic outer tube inner wall to be respectively formed with machine phase film and aqueous phase film, organic phase film is attached on extraction section external cylindrical surface, water
Phase film is attached on the inwall of outer barrel, under the influence of centrifugal force, and organic phase film runs on a bank to aqueous phase film, forms the dynamic of continuous renewal
Two-phase liquid after state interfacial mass transfer, mass transfer flows downwardly into submerged soil；
(3) liquid of submerged soil outage discharge is collected, and carries out stratification.
The utility model has the advantages that：
(1) centrifugal force microfluid extraction equipment described in the utility model intersegmental constructs micron in outer barrel and rotor extraction
The circular passage of level, due to the hydrophily and the lipophile of rotor extraction section of outer barrel, flows into organic phase, the aqueous phase of circular passage
Sprawl into two-phase liquid film rapidly under the action of the centrifugal force, while internal layer organic phase liquid film meeting outer layers aqueous phase liquid film runs on a bank, formed
The dynamic interface of continuous renewal, expands mass transfer area significantly, thus is extracted using centrifugal force microfluid described in the utility model
Device is extracted, and has the advantages that mass-transfer efficiency is high, and residence time of the present apparatus is 5~20s, and extraction efficiency is 95%~
100%.
(2) it is vertical due to what is formed between the outer barrel and rotor of centrifugal force microfluid extraction equipment described in the utility model
To micro scale channel, and in the presence of gravity and centrifugal force, two-phase liquid can leave continuously from device, will not occur passage and block up
Plug, thus uniprocessing amount can at least reach 100mL/min；Microfluid extraction equipment described in the utility model can also take physics
Amplify and improve treating capacity with the mode that quantity amplification is combined, maximum throughput is up to 65m3/ h, can meet current phosphoric acid by wet process
Industrialization production requirements.
(3) centrifugal force microfluid extraction equipment described in the utility model can by adjust rotor extraction section height and
The quantity of miniature guiding gutter, size and helical angle on its surface, realize the reasonable control to the residence time, therefore, are put in quantity
The form of rotor can be flexibly selected when big according to assignment of traffic, the stability of operation is improved；Due to controllable, the sheet of residence time
Device is to fast response and being well adapted for property of long response time.
(4) structure of centrifugal force microfluid extraction equipment described in the utility model to want manufacture craft during parallel combination
Ask relatively low.
(5) because the rotor extraction section face of cylinder, outer barrel wall have oleophylic, hydrophily feature respectively, in centrifugal force
Effect is lower to form the contact of the liquid film with continuous boundary that internal layer is organic phase, outer layer is aqueous phase, therefore will not occur breast
Change, liquid discharge device can split-phase.
(6) centrifugal force microfluid extraction equipment described in the utility model is vertical structure, is more beneficial for reducing floor space,
And the apparatus structure is simple, is easy to processing and fabricating, thus be conducive to promoting the use of.
Brief description of the drawings
Fig. 1 is a kind of structural representation of centrifugal force microfluid extraction equipment described in the utility model；
Fig. 2 is another structural representation of centrifugal force microfluid extraction equipment described in the utility model；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the structural representation of outer barrel in centrifugal force microfluid extraction equipment described in the utility model；
Fig. 5 is a kind of structural representation of rotor in centrifugal force microfluid extraction equipment described in the utility model, is rotated
The miniature guiding gutter of external surface is the stripe-shaped parallel to rotor center line；
Fig. 6 is another structural representation of rotor in centrifugal force microfluid extraction equipment described in the utility model, is turned
The miniature guiding gutter of kinetoplast outer surface is spiral shape；
Fig. 7 is Fig. 6 sectional view；
Fig. 8 is the combination diagram of outer barrel and rotor；
Fig. 9 is the combination diagram of motor and rotor in centrifugal force microfluid extraction equipment described in the utility model；
Figure 10 is the mounting means signal of rotor lower section in centrifugal force microfluid extraction equipment described in the utility model
Figure；
Figure 11 is the fixed form schematic diagram of outer barrel in centrifugal force microfluid extraction equipment described in the utility model；
Figure 12 is aqueous phase feed pipe, the one of organic phase feed pipe in centrifugal force microfluid extraction equipment described in the utility model
Plant installation position schematic diagram；
Figure 13 is that aqueous phase feed pipe, organic phase feed pipe be again in centrifugal force microfluid extraction equipment described in the utility model
A kind of installation position schematic diagram.
In figure, 1-rotor, 1-1-extraction section, 1-1-1-miniature guiding gutter, the centre bores of 1-1-2-first, 1-2-
Diversion section, 1-3-motor connection section, 1-3-1-screw, the centre bores of 1-3-2-second, 2-outer barrel, 3-aqueous phase feed pipe,
4-organic phase feed pipe, 5-submerged soil, the fixed plate of the 6-the first outer barrel positioning, the fixed plate of the 7-the second outer barrel positioning, 8-
Motor, 8-1-motor power output shaft, 9-base, 10-column, 11-footstock, 12-supporting leg, 13-support shaft, 14-tight
Gu screw, 15-bearing, 16-unit bolt nut part.
Embodiment
Filled below by embodiment and with reference to accompanying drawing to centrifugal force microfluid extraction equipment described in the utility model and with this
Progress extraction is put to be described further.Obviously, described embodiment is only a part of embodiment of the utility model, rather than
Whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, belong to the scope of the utility model protection.
Embodiment 1
In the present embodiment, the centrifugal force microfluid extraction equipment as shown in Figure 1,3, including rotor 1, outer barrel 2, motor
8th, support shaft 13, bearing 15, aqueous phase feed pipe 3, organic phase feed pipe 4, submerged soil 5, the fixed plate of outer barrel positioning and support system
System.
The material of the rotor 1 is polyethylene, and structure is as shown in figure 5, from bottom to up successively by extraction section 1-1, water conservancy diversion
Section 1-2 and motor connection section 1-3 are constituted；The extraction section 1-1 is outside cylindrical, a diameter of 5cm, a height of 20cm, extraction section
The face of cylinder is provided with the first center combined with bearing 15 and support shaft 13 provided with miniature guiding gutter 1-1-1, bottom center
Hole 1-1-2, the first centre bore is big end down stepped, and miniature guiding gutter 1-1-1 is the striped parallel to extraction section axis
Shape, fringe spacing is 1mm, and width of fringe is 0.6mm, and fringe depths are 0.3mm；The diversion section 1-2 is up-small and down-big circle
Taper type, truncated cone diversion section 1-2 basal diameter is identical with cylindrical extraction section 1-1 diameter, truncated cone diversion section
Bottom surface and the angle of the conical surface be 30 °, the height of truncated cone diversion section is 1.5cm；The motor connection section 1-3 is cylinder
Shape, its top center is provided with the second centre bore 1-3-2 matched with motor power output shaft 8-1, the side of the second centre bore
Wall is provided with screw 1-3-1.
The material of the outer barrel 2 is stainless steel, shape and construction as shown in figure 4, being cylinder；The wall thickness 1.5mm of outer barrel,
Internal diameter is more than the external diameter of rotor extraction section, and the difference of internal diameter and the external diameter of rotor extraction section is 0.4mm, highly more than rotation
The height 1cm of body extraction section.
The material of the submerged soil 5 is polyethylene, and as shown in Figure 10, the internal diameter of groove is 12cm to structure, and depth is 6cm, its
Side wall is provided with outage, and bottom wall central position is provided with screw；The material of the support shaft 13 is polyethylene, structure such as Figure 10 institutes
Show, be up-small and down-big multi-diameter shaft, the centre of its bottom is provided with the spiral shell with screw set by submerged soil bottom wall central position
Line and size identical screw；The bearing 15 is two pieces；The aqueous phase feed pipe 3, the material of organic phase feed pipe 4 are stainless
Steel, pipe specification is φ 5 × 0.5 (mm).
The fixed plate of outer barrel positioning is two sets, is defined as the fixed outer barrel of plate 6 and second positioning of the first outer barrel positioning
Fixed plate 7, the material of two sets of fixed plates of outer barrel positioning is identical, is polyethylene, structure is identical, semicircle is provided with by two
The lath composition of v notch v, the diameter of the semicircular indentations is matched (as shown in figure 11) with the external diameter of outer barrel.
The support system base 9, footstock 11, column 10 and supporting leg 12 as shown in figure 1, be made up of, and column 10 is two,
Two root posts are separated by the top surface that a spacing is fixed on base 9, and supporting leg 12 is four, is separately mounted to the bottom surface of base 9, footstock
11 are placed in the top surface of two root posts and are connected with two root posts.
The combination of above-mentioned each component and part：
The submerged soil 5 is arranged on the top surface of base 9 of support system and between two root posts 10, the support shaft 13
With base 9, submerged soil bottom wall and support shaft 13 are solidly fixed in submerged soil and by unit bolt nut part 16；Two
Part bearing is separated by a certain distance in support shaft 13, and bearing inner race above and support shaft are stationary fit and pass through branch
The step for holding axle top is spacing, and underlying bearing inner race is stationary fit with support shaft and limited by the step of support shaft bottom
Position；The rotor 1 passes through the first centre bore 1-1-2 set by extraction section bottom center and 13 groups of bearing and support shaft
Close, bearing above, its outer ring is stationary fit with the first centre bore 1-1-2 and limited by the step on the first centre bore top
Position, underlying bearing, its outer ring is stationary fit with the first centre bore, extraction section 1-1 bottoms and submerged soil bottom wall after combination
Between have a spacing, have a spacing between the first centre bore bottom at the top of support shaft；The outer barrel 2 is sleeved on the extraction of rotor
Take section 1-1 and should be separated by with rotor coaxial line by the short transverse along column outside a spacing is arranged on column first
The fixed fixed plate 7 of the outer barrel of plate 6 and second positioning of cylinder positioning is positioned and is fixedly clamped；The motor 8 is arranged on support system
Footstock 11 on, motor power output shaft 8-1 through footstock insert rotor motor connection section 1-3 the second centre bore 1-3-
In 2, motor power output shaft is fixedly connected with rotor by the trip bolt 14 on screw 1-3-1；Aqueous phase is entered
Expects pipe 3 and organic phase feed pipe 4 are separately mounted in two root posts 10, and installation site should make aqueous phase feed pipe 3, organic phase charging
Between extraction section of the outlet end of pipe 4 higher than rotor and the outer rim positioned at diversion section 1-2 bottom surfaces and the outer rim of top surface and do not connect
The outlet end of the conical surface of tactile diversion section, aqueous phase feed pipe 3 and organic phase feed pipe 4 is cantilevered mounting means, two feed pipes
Horizontal sextant angle be 180 °, level interval is 1.5cm, and the vertical inclination angle of two feed pipes is 5 °.Column side is additionally provided with tune
Fast panel, the speed governing panel is connected with motor circuit, and the control assembly of speed governing panel uses commercially available electronic device, is Chengdu
The SPEED CONTROL, motor model 61K250RGN-CF of Europe nation production.
Embodiment 2
In the present embodiment, the centrifugal force microfluid extraction equipment as shown in Fig. 2 including rotor 1, outer barrel 2, motor 8,
Support shaft 13, bearing 15, aqueous phase feed pipe 3, organic phase feed pipe 4, submerged soil 5, the fixed plate of outer barrel positioning and support system.
The material of the rotor 1 be polytetrafluoroethylene (PTFE), structure as shown in Figure 6,7, from bottom to up successively by extraction section 1-
1st, diversion section 1-2 and motor connection section 1-3 are constituted；The extraction section 1-1 is cylinder, a diameter of 6cm, a height of 25cm, extraction
The external cylindrical surface of section is provided with the combined with bearing 15 and support shaft 13 provided with miniature guiding gutter 1-1-1, bottom center
One centre bore 1-1-2, the first centre bore is big end down stepped, and miniature guiding gutter 1-1-1 is screw thread shape, flight pitch
For 3mm, the width of thread is 0.5mm, and the depth of thread is 0.25mm；The diversion section 1-2 is up-small and down-big truncated cone, circular cone
Platform shape diversion section 1-2 basal diameter is identical with cylindrical extraction section 1-1 diameter, the bottom surface of truncated cone diversion section and the conical surface
Angle be 45 °, the height of truncated cone diversion section is 2cm；The motor connection section 1-3 is cylinder, its top center portion
Position is provided with screw 1-3- provided with the second centre bore 1-3-2 matched with motor power output shaft 8-1, the side wall of the second centre bore
1。
The material of the outer barrel 2 is quartz glass, shape and construction as shown in figure 4, being cylinder；The wall thickness 2mm of outer barrel,
Internal diameter is more than the external diameter of rotor extraction section, and the difference of internal diameter and the external diameter of rotor extraction section is 0.6mm, highly more than rotation
The height 3.5cm of body extraction section.
The material of the submerged soil 5 is polyethylene, and as shown in Figure 10, the internal diameter of groove is 12cm to structure, and depth is 6cm, its
Side wall is provided with outage, and bottom wall central position is provided with screw；The material of the support shaft 13 is polyethylene, structure such as Figure 10 institutes
Show, be up-small and down-big multi-diameter shaft, the centre of its bottom is provided with the spiral shell with screw set by submerged soil bottom wall central position
Line and size identical screw；The bearing 15 is two pieces；The aqueous phase feed pipe 3, the material of organic phase feed pipe 4 are stainless
Steel, pipe specification is φ 6 × 0.5 (mm).
The fixed plate of outer barrel positioning is two sets, is defined as the fixed outer barrel of plate 6 and second positioning of the first outer barrel positioning
Fixed plate 7, the material of two sets of fixed plates of outer barrel positioning is identical, is polyethylene, structure is identical, semicircle is provided with by two
The lath composition of v notch v, the diameter of the semicircular indentations is matched (as shown in figure 11) with the external diameter of outer barrel.
The support system base 9, footstock 11, column 10 and supporting leg 12 as shown in figure 1, be made up of, and column 10 is two,
Two root posts are separated by the top surface that a spacing is fixed on base 9, and supporting leg 12 is four, is separately mounted to the bottom surface of base 9, footstock
11 are placed in the top surface of two root posts and are connected with two root posts.
The combination of above-mentioned each component and part：
The submerged soil 5 is arranged on the top surface of base 9 of support system and between two root posts 10, the support shaft 13
With base 9, submerged soil bottom wall and support shaft 13 are solidly fixed in submerged soil and by unit bolt nut part 16；Two
Part bearing is separated by a certain distance in support shaft 13, and bearing inner race above and support shaft are stationary fit and pass through branch
The step for holding axle top is spacing, and underlying bearing inner race is stationary fit with support shaft and limited by the step of support shaft bottom
Position；The rotor 1 passes through the first centre bore 1-1-2 set by extraction section bottom center and 13 groups of bearing and support shaft
Close, bearing above, its outer ring is stationary fit with the first centre bore 1-1-2 and limited by the step on the first centre bore top
Position, underlying bearing, its outer ring is stationary fit with the first centre bore, extraction section 1-1 bottoms and submerged soil bottom wall after combination
Between have a spacing, have a spacing between the first centre bore bottom at the top of support shaft；The outer barrel 2 is sleeved on the extraction of rotor
Take section 1-1 and should be separated by with rotor coaxial line by the short transverse along column outside a spacing is arranged on column first
The fixed fixed plate 7 of the outer barrel of plate 6 and second positioning of cylinder positioning is positioned and is fixedly clamped；The motor 8 is arranged on support system
Footstock 11 on, motor power output shaft 8-1 through footstock insert rotor motor connection section 1-3 the second centre bore 1-3-
In 2, motor power output shaft is fixedly connected with rotor by the trip bolt 14 on screw 1-3-1；Aqueous phase is entered
Expects pipe 3 and organic phase feed pipe 4 are arranged on same root post 10, and installation site should make aqueous phase feed pipe 3, organic phase feed pipe
4 outlet end is higher than the extraction section of rotor and is located between the outer rim of diversion section 1-2 bottom surfaces and the outer rim of top surface and does not contact
The outlet end of the conical surface of diversion section, aqueous phase feed pipe 3 and organic phase feed pipe 4 is supported by the barrel of outer barrel, two feed pipes
Horizontal sextant angle is 0 °, and level interval is 1cm, and the vertical inclination angle of two feed pipes is 5 °.Column side is additionally provided with speed governing panel,
The speed governing panel is connected with motor circuit, and the control assembly of speed governing panel uses commercially available electronic device, is Chengdu Ou Bangsheng
The SPEED CONTROL of production, motor model 61K250RGN-CF.
Embodiment 3
The present embodiment uses centrifugal force microfluid extraction equipment described in embodiment 1 to extract phosphoric acid by wet process, uses wet method phosphorus
The main composition of acid is shown in Table 1.
The composition of the phosphoric acid by wet process of table 1
| Component | P2O5 | Fe3+ | SO4 2- | F- |
| Content wt% | 42.51 | 0.62 | 2.00 | 0.40 |
Extractant uses tributyl phosphate (TBP), is first used water saturation, then presses the TBP containing saturation water with kerosene
According to mass ratio (4:1) mixing is as extraction organic phase, and phosphoric acid by wet process is as aqueous phase extracted, the volume ratio (phase of organic phase and aqueous phase
Than) it is 4:1.
The operating procedure of above-mentioned centrifugal force microfluid extraction equipment is as follows：
(1) start motor 8, make the power output shaft of motor drive rotor 1 to rotate, rotating speed is 200r/min；
(2) aqueous phase and organic phase are fed by aqueous phase feed pipe 3 and organic phase feed pipe 4 respectively, aqueous phase is with 100ml/
Min flow is fed, and correspondingly organic phase is fed with 400ml/min flow, and the diversion section of rotor is dropped down onto under two-phase liquid
On the 1-2 conical surfaces, got rid of under the influence of centrifugal force to the inwall of outer barrel 2, then flow into outer barrel 2 and rotor extraction section 1-1
Between annular gap and extraction section miniature guiding gutter 1-1-1 in, by with hydrophobic extraction section external cylindrical surface and tool
There is hydrophilic outer tube inner wall to be respectively formed with machine phase film and aqueous phase film, organic phase film is attached on extraction section external cylindrical surface, water
Phase film is attached on the inwall of outer barrel, under the influence of centrifugal force, and organic phase film runs on a bank to aqueous phase film, forms the dynamic of continuous renewal
Two-phase liquid after state interfacial mass transfer, mass transfer flows downwardly into submerged soil；
(3) liquid of submerged soil outage discharge is collected, and carries out stratification.
Using P in potentiometric determination organic phase2O5Concentration, and P is calculated by below equation2O5Extraction level effect
Rate：
Wherein：Y ＇ are P in organic phase2O5Concentration；
y0For P in organic phase2O5Initial concentration；
P in organic phase when y* reaches balance for extraction2O5Concentration.
In the present embodiment, obtained P is calculated by above formula2O5Stage efficiency be 97.83%.
Embodiment 4
The present embodiment uses centrifugal force microfluid extraction equipment described in embodiment 2 to extract phosphoric acid by wet process, uses wet method phosphorus
The main composition of acid is with described in table 1 in application examples 1.
Extractant uses tributyl phosphate (TBP), is first used water saturation, then presses the TBP containing saturation water with kerosene
According to mass ratio (4:1) mixing is as extraction organic phase, and phosphoric acid by wet process is as aqueous phase extracted, the volume ratio (phase of organic phase and aqueous phase
Than) it is 4:1.
The operating procedure of above-mentioned centrifugal force microfluid extraction equipment is as follows：
(1) start motor 8, make the dynamic of motor
(2) power output shaft drives rotor 1 to rotate, and rotating speed is 150r/min；
(2) aqueous phase and organic phase are fed by aqueous phase feed pipe 3 and organic phase feed pipe 4 respectively, aqueous phase is with 150ml/
Min flow is fed, and correspondingly organic phase is fed with 600ml/min flow, and the diversion section of rotor is dropped down onto under two-phase liquid
On the 1-2 conical surfaces, got rid of under the influence of centrifugal force to the inwall of outer barrel 2, then flow into outer barrel 2 and rotor extraction section 1-1
Between annular gap and extraction section miniature guiding gutter 1-1-1 in, by with hydrophobic extraction section external cylindrical surface and tool
There is hydrophilic outer tube inner wall to be respectively formed with machine phase film and aqueous phase film, organic phase film is attached on extraction section external cylindrical surface, water
Phase film is attached on the inwall of outer barrel, under the influence of centrifugal force, and organic phase film runs on a bank to aqueous phase film, forms the dynamic of continuous renewal
Two-phase liquid after state interfacial mass transfer, mass transfer flows downwardly into submerged soil；
(3) liquid of submerged soil outage discharge is collected, and carries out stratification.
In the present embodiment, P2O5Stage efficiency (extraction stage efficiency in calculation formula be the same as Example 3 calculates for 96.61%
Formula).
Claims (9)
1. a kind of centrifugal force microfluid extraction equipment, it is characterised in that including rotor (1), outer barrel (2), motor (8), support shaft
(13), bearing (15), aqueous phase feed pipe (3), organic phase feed pipe (4), submerged soil (5), the fixed plate of outer barrel positioning and support
System；
The rotor (1) is made up of extraction section (1-1), diversion section (1-2) and motor connection section (1-3) successively from bottom to up,
Extraction section (1-1) is cylinder, and the external cylindrical surface of extraction section is provided with provided with miniature guiding gutter (1-1-1), bottom center
The first centre bore (1-1-2) combined with bearing (15) and support shaft (13), diversion section (1-2) is the up-small and down-big frustum of a cone
Shape, motor connection section (1-3) is cylinder, and rotor is using hydrophobic material making or the external cylindrical surface of its extraction section (1-1)
Using hydrophobically modified dose of progress surface modification；
The outer barrel (2) is cylinder, and the internal diameter of outer barrel is more than the external diameter of rotor extraction section, and the internal diameter and rotor of outer barrel
The difference of the external diameter of extraction section is 0.1~0.9mm, and the height of outer barrel is more than the height, whole less than rotor of rotor extraction section
Body height, outer barrel is made using hydrophilic material or the inwall of outer barrel carries out surface modification using Hydrophilic modification agent；
The support system includes base (9), footstock (11), column (10) and supporting leg (12), and column (10) is two, and two are stood
Post is separated by the top surface that a spacing is fixed on base (9), and supporting leg (12) at least two is separately mounted to the bottom surface of base (9), top
Seat (11) is placed in the top surface of two root posts and is connected with two root posts；
The bearing (15) is at least one, and the side wall of the submerged soil (5) is provided with outage；
The submerged soil (5) is arranged on base (9) top surface of support system and between two root posts (10), the support shaft
(13) it is located in submerged soil and is connected with submerged soil bottom wall；The bearing (15) is arranged in support shaft, and the rotor (1) is led to
Cross the first centre bore (1-1-2) set by extraction section bottom center to combine with bearing and support shaft, extraction section (1- after combination
1) have between bottom and submerged soil bottom wall at the top of a spacing, support shaft has a spacing between the first centre bore bottom；It is described outer
The fixed plate of cylinder positioning is connected with column, and the outer barrel (2) is sleeved on the extraction section (1-1) of rotor and should be coaxial with rotor
Line, positioning and fixation that fixed plate realizes outer barrel are positioned by outer barrel；The motor (8) is arranged on the footstock of support system
(11) on, the motor connection section (1-3) of motor power output shaft (8-1) through footstock and rotor is connected；The aqueous phase charging
Manage (3) and organic phase feed pipe (4) is arranged on the column (10) of support system, installation site should make aqueous phase feed pipe (3), have
Extraction section of the outlet end of machine phase feed pipe (4) higher than rotor and the outer rim positioned at diversion section (1-2) bottom surface and top surface it is outer
Between edge and do not contact the conical surface of diversion section.
2. centrifugal force microfluid extraction equipment according to claim 1, it is characterised in that set on the external cylindrical surface of extraction section
Miniature guiding gutter (1-1-1) is spiral shape or the stripe-shaped parallel to extraction section axis, the width of miniature guiding gutter for 0.2~
1mm, depth are 0.1~0.5mm.
3. centrifugal force microfluid extraction equipment according to claim 1 or claim 2, it is characterised in that truncated cone diversion section (1-2)
Basal diameter it is identical with the diameter of cylindrical extraction section (1-1), the bottom surface of truncated cone diversion section and the angle of the conical surface are α,
5°≤α≤60°。
4. centrifugal force microfluid extraction equipment according to claim 1 or claim 2, it is characterised in that the fixed plate of outer barrel positioning is two
Set, is defined as the fixed plate (6) of the first outer barrel positioning and the fixed plate (7) of the second outer barrel positioning, and two sets of outer barrels position fixed plate
Part structure is identical, is constituted by two laths provided with semicircular indentations, the diameter of the semicircular indentations and the external diameter of outer barrel
Match somebody with somebody, the short transverse of the fixed plate (6) of the first outer barrel positioning and the fixed plate (7) of the second outer barrel positioning along column is separated by a spacing
On column.
5. centrifugal force microfluid extraction equipment according to claim 3, it is characterised in that the fixed plate of outer barrel positioning has two sets,
It is defined as the fixed plate (6) of the first outer barrel positioning and the fixed plate (7) of the second outer barrel positioning, two sets of fixed plate knots of outer barrel positioning
Structure is identical, is constituted by two laths provided with semicircular indentations, the diameter of the semicircular indentations is matched with the external diameter of outer barrel, the
The short transverse of the fixed plate (6) of one outer barrel positioning and the fixed plate (7) of the second outer barrel positioning along column is separated by spacing installation
On column.
6. centrifugal force microfluid extraction equipment according to claim 1 or claim 2, it is characterised in that the aqueous phase feed pipe (3) and
Organic phase feed pipe (4) is arranged on same root post (10), or is separately mounted in two root posts；Aqueous phase feed pipe (3) and
The outlet end of organic phase feed pipe (4) is cantilevered mounting means or supported by the barrel of outer barrel.
7. centrifugal force microfluid extraction equipment according to claim 3, it is characterised in that the aqueous phase feed pipe (3) and organic
Phase feed pipe (4) is arranged on same root post (10), or is separately mounted in two root posts；Aqueous phase feed pipe (3) and organic
The outlet end of phase feed pipe (4) is cantilevered mounting means or supported by the barrel of outer barrel.
8. centrifugal force microfluid extraction equipment according to claim 4, it is characterised in that the aqueous phase feed pipe (3) and organic
Phase feed pipe (4) is arranged on same root post (10), or is separately mounted in two root posts；Aqueous phase feed pipe (3) and organic
The outlet end of phase feed pipe (4) is cantilevered mounting means or supported by the barrel of outer barrel.
9. centrifugal force microfluid extraction equipment according to claim 5, it is characterised in that the aqueous phase feed pipe (3) and organic
Phase feed pipe (4) is arranged on same root post (10), or is separately mounted in two root posts；Aqueous phase feed pipe (3) and organic
The outlet end of phase feed pipe (4) is cantilevered mounting means or supported by the barrel of outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341863.4U CN206604224U (en) | 2017-04-01 | 2017-04-01 | A kind of centrifugal force microfluid extraction equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341863.4U CN206604224U (en) | 2017-04-01 | 2017-04-01 | A kind of centrifugal force microfluid extraction equipment |
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| Publication Number | Publication Date |
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| CN206604224U true CN206604224U (en) | 2017-11-03 |
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ID=60173486
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654138A (en) * | 2017-04-01 | 2018-10-16 | 四川大学 | A kind of centrifugal force microfluid extraction equipment and its extracting process |
-
2017
- 2017-04-01 CN CN201720341863.4U patent/CN206604224U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654138A (en) * | 2017-04-01 | 2018-10-16 | 四川大学 | A kind of centrifugal force microfluid extraction equipment and its extracting process |
| CN108654138B (en) * | 2017-04-01 | 2023-06-16 | 四川大学 | Centrifugal force micro-fluid extraction device and extraction method thereof |
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