CN104784967B - One is the most adjustable level reflow type centrifugal extractor and a control method thereof - Google Patents
One is the most adjustable level reflow type centrifugal extractor and a control method thereof Download PDFInfo
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- CN104784967B CN104784967B CN201510133312.4A CN201510133312A CN104784967B CN 104784967 B CN104784967 B CN 104784967B CN 201510133312 A CN201510133312 A CN 201510133312A CN 104784967 B CN104784967 B CN 104784967B
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Abstract
The invention belongs to solvent extraction field, be specifically related to the most adjustable level reflow type centrifugal extractor of one and control method thereof.This centrifugal extractor includes upper shell and lower house；Being arranged with heavy phase collecting chamber and light phase collecting chamber in described upper shell, described heavy phase collecting chamber connects with heavy phase drain pipe, and described light phase collecting chamber connects with light phase drain pipe；Described lower house connects with heavy phase feed tube and light phase feed tube respectively, it is provided with this grade of reflux of heavy phase between described heavy phase collecting chamber and/or heavy phase drain pipe and described heavy phase feed tube, or, between described light phase collecting chamber and/or light phase drain pipe and described light phase feed tube, it is provided with light phase level reflux.Centrifugal extractor in the present invention is not only applicable to big flow ratio operating mode, and improve is concentration mutually, and extraction process is steady, good product quality, and extraction efficiency is high, and simple in construction greatly expands the range of application of centrifugal extractor.Control method in the present invention is simple simultaneously, effective and reliable.
Description
Technical field
The invention belongs to solvent extraction field, be specifically related to the most adjustable level reflow type centrifugal extractor of one and tune thereof
Joint method.
Background technology
The operation extracting wherein certain component with solvent from liquid mixture is referred to as liquid/liquid extraction.
Centrifugal extractor is one liquid-liquid extraction fast and efficiently (solvent extraction) equipment, and it is to utilize centrifugal force to realize
The extraction of liquid-liquid diphase and separation, it is possible to achieve liquid-liquid diphase mixing, mass transfer, react, extract, wash, the several functions such as separation.
Can be widely used for the multiple necks such as hydrometallurgy, waste water process, biology, pharmacy, petrochemical industry, chemical industry, spice, dyestuff, atomic energy
Territory.
As it is shown in figure 1, the centrifugal extractor of routine includes upper shell 4 and lower house 5, lower house 5 is provided with rotary drum 3,
And between lower house 5 and rotary drum 3, it being provided with annular gap 51, main shaft 2 passes upper shell 4 and lower house 5 from top to bottom and drives
Rotary drum 3 rotates；The both sides of lower house 5 respectively with heavy phase feed tube 8 and light phase feed tube 7 UNICOM, the upside of rotary drum 3 be provided with weight
Phase fluid collection chamber 82 and light phase fluid collection chamber 72, be respectively arranged with the heavy phase collecting chamber 84 connected with heavy phase fluid collection chamber 82 in upper shell 4
And the light phase collecting chamber 74 connected with light phase fluid collection chamber 72, the both sides of described upper shell 4 are respectively arranged with and heavy phase collecting chamber 84
The heavy phase drain pipe 85 connected and the light phase drain pipe 75 connected with light phase collecting chamber 74.During work light, weight is the most biphase from it each
Feed tube enters inside extracter, the annular gap 51 between lower house 5 and rotary drum 3 flow downward, bottom rotary drum 3
It is internal that entrance enters rotary drum 3, main shaft 2 drive the rotary drum 3 of rotation to produce centrifugal force, by biphase liquid different for density separately,
Reach the purpose separated.Biphase liquid after Fen Kai enters respective collecting chamber by different runners, by respective drain pipe
Flow out.
Centrifugal extractor is generally adapted light, weight two-phase flow ratio operating mode within 1:20, in the range of this flow ratio, centrifugal extraction
The machine of taking can be regulated by adjusting the modes such as rotating speed, heavy phase weir plate or increase extraction progression, in order to obtains quality preferable
Product and higher extraction efficiency.At present, in the field such as hydrometallurgy, Extraction of rare eart and purification, nuclear fuel extraction, chemical industry, because of
Need for technique, big flow ratio extraction process often occur, it is light, weight two-phase flow ratio typically at more than 1:30, even more than 1:50.
In the case of big flow ratio, certain phase flow rate in centrifugal extractor is the least, and concentration is low, balances each other highly unstable and as easy as rolling off a log
Fluctuation, phase-contact surface is little, and the product design extracted is the lowest, second-rate, and extraction efficiency is low.Especially at hydrometallurgy, rare earth
Extraction field, typically more than levels hundreds of, the most thousands of, once there is balance each other destruction or production process injustice in extraction progression
Surely, it will making the extraction process of several hundred or thousands level the most heavily come, product even wrecks, and again sets up the cycle balanced each other
The longest, economic loss is the hugest.
So, in big flow ratio technology field, centrifugal extractor the most just can not get application, and user has to use efficiency low
Under, labor intensity is high, utilize gravity to realize extraction tank, extraction box or the extraction tower of static state layering, seriously hinders centrifugal extraction
Take the popularization and application of machine.
Summary of the invention
For above-mentioned weak point of the prior art, one of the technical problem to be solved in the present invention is to provide one can
The most adjustable level reflow type centrifugal extractor of stable operation under big flow ratio operating mode.Centrifugal extractor in the present invention is not only
Being applicable to big flow ratio operating mode, and improve is concentration mutually, extraction process is steady, good product quality, and extraction efficiency is high, structure letter
Single, greatly expand the range of application of centrifugal extractor.
To achieve these goals, the present invention is achieved through the following technical solutions:
One is a most adjustable level reflow type centrifugal extractor, this centrifugal extractor includes upper shell and lower house, described
The cavity that upper shell and lower house surround is provided with by the separation rotary drum of main shaft drives；Described upper shell be provided with successively will
The isolated heavy phase of rotary drum derives the heavy phase fluid collection chamber to heavy phase drain pipe and heavy phase collecting chamber, is additionally provided with rotary drum isolated
The light phase fluid collection chamber of light phase derivation extremely light phase drain pipe and light phase collecting chamber；The both sides of described lower house respectively with heavy phase feed tube
Connect with light phase feed tube；Described light phase fluid collection chamber, light phase collecting chamber sequentially connect light phase collection of composition and fill with light phase drain pipe
Putting, described heavy phase fluid collection chamber, heavy phase collecting chamber sequentially connect composition heavy phase collection device with heavy phase drain pipe；This centrifugal extractor
Also include this grade of reflux of heavy phase making heavy phase collection device connect with heavy phase feed tube and/or make light phase collection device with light
Light phase level reflux of phase feed tube connection.
Preferably, when being provided with this grade of reflux of heavy phase, this grade of reflux of described heavy phase includes heavy phase drainage tube,
The liquid level lowest part of the upper end import of described heavy phase drainage tube heavy phase feed tube side close with in heavy phase collecting chamber connects, heavy phase
The lower end outlet of drainage tube connects with heavy phase feed tube, and described heavy phase drainage tube is provided with heavy phase drain regulation valve；
When being provided with light phase level reflux, described light phase level reflux includes light phase drainage tube, described gently
The liquid level lowest part of the upper end import of phase drainage tube light phase feed tube side close with in light phase collecting chamber connects, light phase drainage tube
Lower end outlet connect with light phase feed tube, described light phase drainage tube is provided with light phase drain regulate valve.
Further, this grade of reflux of described heavy phase also includes that backflow heavy phase drain pipe, described backflow heavy phase go out
The pipe bottom of described heavy phase drain pipe is inserted in the import of liquid pipe, is provided with heavy phase cut-off at the heavy out of described heavy phase drain pipe
Valve, the exit of described backflow heavy phase drain pipe is provided with backflow heavy phase stop valve；Described backflow heavy phase drain pipe
Be provided with in heavy phase inlet, described heavy phase inlet and heavy phase drain pipe on the pipe shaft of insertion heavy phase drain pipe goes out liquid direction
It is oppositely arranged, and is provided with the discrepancy in elevation between the bottommost of the bottommost of described heavy phase inlet and described heavy phase drain pipe inwall.
Further, described backflow heavy phase drain pipe is fastened on the end of heavy phase drain pipe by packing_seal device
Portion, described packing_seal device includes, for being tightly wound around the soft packing_seal on backflow heavy phase drain pipe outer wall, also wrapping
Include screw thread pair, described screw thread pair be in locking with compress described soft packing_seal and fastening backflow heavy phase drain pipe or unclamp with
Discrepancy in elevation two states between regulation heavy phase inlet bottommost and the bottommost of described heavy phase drain pipe inwall.
Preferably, described light phase level reflux also include backflow use light phase drain pipe, described backflow with light phase go out liquid
The pipe bottom of described light phase drain pipe is inserted in the import of pipe, is provided with light phase cut-off at the light phase export of described light phase drain pipe
Valve, described backflow is provided with backflow with the exit of light phase drain pipe and uses light phase stop valve；Described backflow is with light phase drain pipe
Insert and on the pipe shaft of light phase drain pipe, be provided with light phase inlet, described light phase inlet and light phase drain pipe go out liquid direction
It is oppositely arranged, and is provided with the discrepancy in elevation between the bottommost of the bottommost of described light phase inlet and described light phase drain pipe inwall.
Further, described backflow is fastened on the bottom of light phase drain pipe with light phase drain pipe by packing_seal device,
Described packing_seal device include for be tightly wound around backflow with the soft packing_seal on light phase drain pipe outer wall, also include spiral shell
Stricture of vagina is secondary, and described screw thread pair is in locking to compress described soft packing_seal and the fastening light phase drain pipe of backflow or to unclamp with regulation
Discrepancy in elevation two states between the bottommost of light phase inlet bottommost and described light phase drain pipe inwall.
Preferably, this centrifugal extractor is additionally provided with lower house is coated on chuck therein, the bottom of described chuck
Arranging the import of thermal source or coolant, top arranges the outlet of thermal source or coolant.
Preferably, described heavy phase feed tube and light phase feed tube are arranged along the face of cylinder tangential direction of lower house, and heavy phase
Feed tube and light phase feed tube mutually stagger, and the position that arranges of heavy phase feed tube and light phase feed tube makes feed liquid along lower house
In the direction of rotation of rotary drum enter inside extracter；Described heavy phase drain pipe, light phase drain pipe are cut along the face of cylinder of lower house
Line direction is arranged, and heavy phase drain pipe, light phase drain pipe mutually stagger, and heavy phase drain pipe, the position that arranges of light phase drain pipe make
The direction of rotation obtaining discharging rotary drum in lower house throws away extracter.
Preferably, when centrifugal extractor is provided with this grade of reflux of heavy phase and light phase level reflux, institute simultaneously
The import department stating heavy phase feed tube and light phase feed tube is provided with tee T, the tee T of the heavy phase feed tube of centrifugal extractor
The outlet of heavy phase drain pipe of supervisor mouth and adjacent centrifugal extracter, the other mouth of pipe and the phase of the tee T of heavy phase feed tube
The backflow outlet of heavy phase drain pipe of adjacent centrifugal extractor；The supervisor of the tee T of the light phase feed tube of centrifugal extractor
Mouthful with the outlet of the light phase drain pipe of adjacent centrifugal extracter, the other mouth of pipe of the tee T of light phase feed tube and adjacent centrifugal
The backflow outlet of light phase drain pipe of extracter.
Another of the present invention to solve the technical problem that the tune being to provide a kind of centrifugal extractor based on said structure
Joint method, this control method adopts the technical scheme that
When centrifugal extractor is provided with this grade of reflux of heavy phase and light phase level reflux simultaneously and big when occurring
During flow ratio extraction operating mode, control method is as follows:
If heavy phase flow is less, opens the heavy phase drain regulation valve on heavy phase drainage tube, open backflow heavy phase drain pipe
On backflow heavy phase stop valve, close the heavy phase stop valve on heavy phase drain pipe, the bottommost of regulation heavy phase inlet and institute
State the discrepancy in elevation between the bottommost of heavy phase drain pipe inwall, and the unlatching size of regulation heavy phase drain regulation valve is to regulate stream
Amount, makes the two-phase flow ratio within centrifugal extractor gradually stable at 1:4～1:5；
If light phase flow is less, opens the light phase drain regulation valve on light phase drainage tube, open backflow and use light phase drain pipe
On the light phase stop valve of backflow, close the light phase stop valve on light phase drain pipe, regulate bottommost and the institute of light phase inlet
State the discrepancy in elevation between the bottommost of light phase drain pipe inwall, and regulate the unlatching size of light phase drain regulation valve to regulate stream
Amount, makes the two-phase flow ratio within centrifugal extractor gradually stable at 1:4～1:5.
The beneficial effects of the present invention is:
1), in the present invention by arranging this grade of reflux of heavy phase and light phase level reflux, by heavy phase collecting chamber and/
Or the heavy phase in heavy phase drain pipe leads back in centrifugal extractor again, or by light phase collecting chamber and/or light phase drain pipe
Light phase again lead back in centrifugal extractor, lead back the heavy phase in centrifugal extractor simultaneously or light phase flow is adjustable.Actual application
In, when certain the phase flow ratio in centrifugal extractor is too small, this grade of reflux of this phase can be opened.
Centrifugal extractor in the present invention is without by external equipment or change technological process, i.e. may be implemented in the big stream of technique
Than requiring constant on the premise of, increase actual flow ratio centrifugal extractor within, meet fitting required for centrifugal extractor processes
Preferably comparing, adding is contact surface mutually, and improve is concentration mutually, it is ensured that extraction process is steady, it is ensured that product quality, improves
Extraction efficiency, in actual production, also achieves significant effect.
2) this grade of reflux, in the present invention includes drainage tube and backflow drain pipe, and backflow drain pipe plugs solid
It is scheduled on the pipe bottom of corresponding drain pipe, and the pipe shaft that backflow drain pipe is inserted within corresponding drain pipe is provided with
It is provided with valve on inlet, drainage tube and backflow drain pipe and corresponding drain pipe thereof.
During regulation flow ratio, open the valve on the less drainage tube being mutually of flow and backflow drain pipe, close relatively
The valve on drain pipe answered, the liquid that goes out that what now this flow was little is mutually is first gathered in the collecting chamber of this phase, owing to backflow is used
The bottommost of the inlet of drain pipe with at the bottom of the pipe of corresponding drain pipe between the valve that is provided with in discrepancy in elevation h, and drain pipe close
Closing, therefore the hydrops of this phase only has more than this height h and could go out liquid from backflow drain pipe；Before not up to this height h, go out liquid
Backed into the feed tube of this phase system by the drainage tube of this phase, make the reality tied up to mutually within centrifugal extractor that this flow is less
Flow increases, and typically increases to two-phase flow ratio about the suitable proportion of 1:4～1:5, is reaching this suitable extract stream ratio
After ratio, this phase goes out liquid and can gradually increase, when this phase go out liquid stable after, this collected in this phase collecting chamber is met and is gradually increased
Adding until liquid level exceedes the discrepancy in elevation, this phase steadily will flow out with this phase drain pipe from backflow, completes this this grade of phase and refluxes and go out liquid.
From the foregoing, the centrifugal extractor in the present invention can select this grade of backflow dress of a wherein phase according to actual needs
Putting or do not select, without affecting the use of centrifugal extractor, the control method in the present invention is simple simultaneously, effectively and can
Lean on.
3), the bottommost of the inlet of backflow drain pipe with at the bottom of the pipe of corresponding drain pipe between discrepancy in elevation h permissible
Regulation, discrepancy in elevation h is according to the flow ratio required for the size of centrifugal extractor inner volume, extracter inside and the appearance of heavy phase collecting chamber
Long-pending wait common calculating to determine, and certain phase drain regulation valve also by regulation opening degree to regulate return flow, thus can enter one
Step facilitates the regulation of flow ratio, expands the scope of flow on-line control, improves the regulating effect of flow ratio.
4), the most adjustable level reflux in the present invention can be turned on and off immediately, it is possible to realize on-line control and
Do not affect the normal use of centrifugal extractor.The stream of the biphase any phase of weight is smaller, can open this level of this phase at any time
Reflux.Significantly expand the range of application of centrifugal extractor.And meet Centrifugical extraction at feed liquor flow ratio and process the work required
In skill, then can close this grade of reflux conveniently by closing valve, not affect the normal use of centrifugal extractor.
5) centrifugal extractor, in the present invention can use with plural serial stage, thus further expands the present invention
The scope of application.
6), centrifugal extractor in actual applications, process material be all organic solvent.In processing procedure, metropolis produces
The raw phenomenon such as heat release, emulsifying, needs the system to processing to be heated or cooled.Therefore the present invention is coated with in the outside of lower house
Having chuck, arrange the import of thermal source or coolant bottom chuck, top arranges the outlet of thermal source or coolant, be passed through during work heating agent or
Coolant, it is ensured that centrifugal extractor can keep stablizing lasting duty.
7), the heavy phase drain pipe in the present invention, light phase drain pipe, heavy phase feed tube, light phase feed tube be all placed along,
The tangential direction of lower house is arranged and mutually staggers.According to the direction of rotation of rotary drum, light phase feed tube, heavy phase feed tube are set
Time, feed liquid is inside the direction of rotation entrance centrifugal extractor of rotary drum；When light phase drain pipe, heavy phase drain pipe are set, go out
Material is to throw away direction along the centrifugal force of rotary drum rotated to be discharged, thus will not produce charging and discharging during centrifugal extractor work
Raw drag effect, also ensure that the force-bearing situation of centrifuge more balances, it is ensured that stablizing of its duty.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional centrifugal extracter.
Fig. 2 is the structural representation of the centrifugal extractor in the present invention.
Fig. 3 is I enlarged drawing of Fig. 2.
Fig. 4 is the A-A generalized section of Fig. 2.
Fig. 5 is the B-B generalized section of Fig. 2.
Connection status schematic diagram when Fig. 6 is the use of centrifugal extractor plural serial stage.
In figure, the implication of labelling is as follows:
1-motor 2-main shaft 3-rotary drum 4-upper shell
5-lower house 51-annular gap 6-bearing
The 7-light phase feed tube 71-light phase fluid collection chamber of the first light phase communication port 72-
Light phase communication port 74-of the 73-second light phase collecting chamber light phase drain pipe of 75-
751-light phase stop valve 76-light phase drainage tube 761-light phase drain regulation valve
The 77-backflow light phase drain pipe 771-light phase light phase inlet of stop valve 772-of backflow
8-heavy phase feed tube 81-heavy phase communication port 82-heavy phase fluid collection chamber
83-annular heavy phase communication port 84-heavy phase collecting chamber 85-heavy phase drain pipe
851-heavy phase stop valve 86-heavy phase drainage tube 861-heavy phase drain regulation valve
87-backflow heavy phase drain pipe 871-backflow heavy phase stop valve 872-heavy phase inlet
873-packing_seal device 8731-floppy disk root 8732-screw thread pair
9-chuck 10-tee T 11-flexible pipe
The N1-heavy phase light phase import of import N2-
N3-light phase export N31-backflow light phase export
N4-heavy out N41-backflow heavy out
The import N6-thermal source of N5-thermal source or coolant or the outlet of coolant
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is made into one
Step ground describes in detail.
As in figure 2 it is shown, centrifugal extractor includes upper shell 4 and lower house 5；Described upper shell 4 is arranged with heavy phase collect
Chamber 84 and light phase collecting chamber 74, described heavy phase collecting chamber 84 connects with heavy phase drain pipe 85, and described light phase collecting chamber 74 is with light phase
Drain pipe 75 connects；Described lower house 5 connects with heavy phase feed tube 8 and light phase feed tube 7 respectively；The outside of described lower house 5
Being coated with chuck 9, the bottom of described chuck 9 arranges the import N5 of thermal source or coolant, and top arranges the outlet N6 of thermal source or coolant；
Being provided with the rotary drum 3 for separating in the region that described upper shell 4 and lower house 5 surround, the top of described rotary drum 3 is respectively provided with
Having heavy phase fluid collection chamber 82 and light phase fluid collection chamber 72, in described rotary drum 3, isolated heavy phase is amassed through heavy phase communication port 81, heavy phase successively
Sap cavity 82, annular heavy phase communication port 83, heavy phase collecting chamber 84 enter heavy phase drain pipe 85, isolated light phase light through first successively
Phase communication port 71, light phase fluid collection chamber the 72, second light phase communication port 73, light phase collecting chamber 74 enter light phase drain pipe 75.
As it is shown in figure 5, described heavy phase feed tube 8 and light phase feed tube 7 are arranged along the face of cylinder tangential direction of lower house 5,
And heavy phase feed tube 8 and light phase feed tube 7 mutually stagger, the position that arranges of heavy phase feed tube 8 and light phase feed tube 7 makes feed liquid
The direction of rotation of the rotary drum 3 in lower house enters inside extracter；As shown in Figure 4, described heavy phase drain pipe 85, light phase go out
Liquid pipe 75 is arranged along the face of cylinder tangential direction of upper shell 4, and heavy phase drain pipe 85, light phase drain pipe 75 mutually stagger, heavy phase
Drain pipe 85, the position that arranges of light phase drain pipe 75 make discharging throw away extracter along the direction of rotation of rotary drum 3.
It should be noted that this grade of reflux of heavy phase and light phase level reflux in the present invention can separate individually
Arrange, it is also possible to arrange simultaneously.What is called is separately separately provided in i.e. one centrifugal extractor and is only provided with this grade of backflow dress of heavy phase
Put, or be only provided with light phase level reflux.
As specific embodiment, the centrifugal extractor in Fig. 2 is provided with this grade of reflux of heavy phase and light phase simultaneously
Level reflux.Separately below this grade of reflux of heavy phase and light phase level reflux are described further.
A, this grade of reflux of heavy phase
As in figure 2 it is shown, this grade of reflux of described heavy phase includes heavy phase drainage tube 86 and backflow heavy phase drain pipe 87.
As in figure 2 it is shown, near heavy phase feed tube 8 one in the upper end import of described heavy phase drainage tube 86 and heavy phase collecting chamber 84
The liquid level lowest part connection of side, the lower end outlet of heavy phase drainage tube 86 connects with heavy phase feed tube 8, on described heavy phase drainage tube 86
Being provided with heavy phase drain regulation valve 861, heavy phase drain regulation valve 861 can regulate the uninterrupted of heavy phase withdrawing fluid.
As shown in Figure 2,3, the pipe bottom of described heavy phase drain pipe 85 is inserted in the import of described backflow heavy phase drain pipe 87,
Heavy phase stop valve 851 it is provided with, returning of described backflow heavy phase drain pipe 87 at the heavy out N4 of described heavy phase drain pipe 85
Backflow heavy phase stop valve 871 it is provided with at stream heavy out N41.In actual application, heavy phase stop valve 851 is opened, then return
Stream heavy phase stop valve 871 is closed；Heavy phase stop valve 851 is closed, then backflow heavy phase stop valve 871 is opened.
It is provided with heavy phase inlet 872 on the pipe shaft of the insertion heavy phase drain pipe 85 of described backflow heavy phase drain pipe 87,
Described heavy phase inlet 872 is oppositely arranged with the liquid direction that goes out in heavy phase drain pipe 85, and the end of described heavy phase inlet 872
It is provided with discrepancy in elevation h between the bottommost of portion and described heavy phase drain pipe 85 inwall.
As it is shown on figure 3, described backflow heavy phase drain pipe 87 is fastened on heavy phase drain pipe 85 by packing_seal device 873
Bottom, described packing_seal device 873 includes soft packing_seal 8731 and screw thread pair 8732, described packing_seal device 873
It is tightly wound around on the outer wall of backflow heavy phase drain pipe 87 by soft packing_seal 8731, and is compressed by screw thread pair 8732 solid
Fixed.Packing_seal device 873 had both met seal request, made the heavy phase in heavy phase drain pipe 85 to spill；Also make backflow
With heavy phase drain pipe 87, there is certain degree of freedom；When unclamping screw thread pair 8732, backflow weight can be twitched up or down
Phase drain pipe 87, thus change difference in height h.By changing difference in height h, it is possible to assemble in being conveniently adjusted heavy phase collecting chamber 84
Liquid, i.e. can regulate and enter into the fluid flow within extracter by heavy phase drainage tube 86, namely increase or reduce
Extracter is compared by internal the actual of heavy phase.
B, light phase level reflux
As in figure 2 it is shown, described light phase level reflux includes light phase drainage tube 76 and the light phase drain pipe 77 of backflow.
As in figure 2 it is shown, near light phase feed tube 7 one in the upper end import of described light phase drainage tube 76 and light phase collecting chamber 74
The liquid level lowest part connection of side, the lower end outlet of light phase drainage tube 76 connects with light phase feed tube 7, on described light phase drainage tube 76
Being provided with light phase drain regulation valve 761, light phase drain regulation valve 761 can regulate the uninterrupted of light phase withdrawing fluid.
Described light phase level reflux also includes that backflow with light phase drain pipe 77, described refluxes with light phase drain pipe 77
The pipe bottom of described light phase drain pipe 75 is inserted in import, is provided with light phase stop valve at the light phase export of described light phase drain pipe 75
751, the described backflow exit of light phase drain pipe 77 is provided with the light phase stop valve 771 of backflow.In actual application, light phase section
Only valve 751 is opened, then reflux and close with light phase stop valve 771；Light phase stop valve 751 is closed, then reflux with light phase stop valve 771
Open.
Described backflow is provided with light phase inlet 772 with on the pipe shaft inserting light phase drain pipe 75 of light phase drain pipe 77,
Described light phase inlet 772 is oppositely arranged with the liquid direction that goes out in light phase drain pipe 75, and the end of described light phase inlet 772
It is provided with discrepancy in elevation h between the bottommost of portion and described light phase drain pipe 75 inwall.
As it is shown on figure 3, described backflow is fastened on light phase drain pipe 75 with light phase drain pipe 77 by packing_seal device 873
Bottom, described packing_seal device 873 includes for being tightly wound around backflow with the floppy disk root on light phase drain pipe 77 outer wall
Seal 8731, also include that screw thread pair 8732, described screw thread pair 8732 are in locking to compress described soft packing_seal 8731 with tight
Gu reflux regulate light phase inlet 772 bottommost and described light phase drain pipe 75 inwall with light phase drain pipe 77 or unclamp
Discrepancy in elevation h two states between Di Bu.The concrete function of packing_seal device 873 may refer to the note of this grade of reflux of heavy phase
Carry.
As shown in Figure 6, when centrifugal extractor is provided with this grade of reflux of heavy phase and light phase level reflux simultaneously,
Tee T 32 can be provided with, the heavy phase feed liquor of centrifugal extractor in the import department of described heavy phase feed tube 8 and light phase feed tube 7
Supervisor's mouth of the tee T of pipe 8 and the outlet of the heavy phase drain pipe 85 of adjacent centrifugal extracter, the threeway of heavy phase feed tube 8
The outlet of the backflow heavy phase drain pipe 87 of the other mouth of pipe of pipe and adjacent centrifugal extracter；The light phase feed liquor of centrifugal extractor
Supervisor's mouth of the tee T of pipe 7 and the outlet of the light phase drain pipe 75 of adjacent centrifugal extracter, the threeway of light phase feed tube 7
The other mouth of pipe of pipe refluxes with the outlet of light phase drain pipe 77 with adjacent centrifugal extracter.In actually used, only can use
The most a set of level reflux, simultaneously closes off another set of level reflux.
Connect the pipeline used between adjacent centrifugal extracter and be flexible pipe 11.
Below in conjunction with the accompanying drawings the work process of the present invention is described further.
As in figure 2 it is shown, the material i.e. heavy phase that pending density is big (generally material), by the heavy phase of heavy phase feed tube 8
Import N1 enters；The material that density is little is the most light phase, generally extractant, the light phase import N2 of light phase feed tube 7 enter.Enter
The biphase liquid of centrifugal extractor is by the annular gap 51 between rotary drum 3 and the lower house 5 of rotation, in region, annular gap 51
In, because of the high speed rotating of rotary drum 3, to the violent stirring of the biphase generation of weight entered, mixing, mixed liquor flows gradually downward,
Rotary drum 3 is entered internal by the entrance bottom rotary drum 3.In stirring, mixed process, extractant is with the utility in material i.e.
Solute generation mass transfer, exchange.Enter behind rotary drum 3 inside, under the influence of centrifugal force, in mixed liquor light, weigh two phase factor density
Difference is being drifted apart from along rotary drum uphill process.The big heavy phase of density, near drum inner wall, is entered weight by heavy phase communication port 81
Phase fluid collection chamber 82, then enter heavy phase collecting chamber 84 by annular heavy phase communication port 83, finally flowed out by heavy phase drain pipe 85.Density
Little is light phase near rotary drum axle center, the first light phase communication port 71 enter light phase fluid collection chamber 72, then by the second light phase communication port
73 enter light phase collecting chamber 74, are finally flowed out by light phase drain pipe 75.
Described rotary drum 3 is connected with main shaft 2, and main shaft 2 is supported by bearing 6.Motor drive shaft 2 rotates and drives rotary drum 3
High speed rotating, produces the centrifugal force needed.
If heavy phase flow is less, opens the heavy phase drain regulation valve 861 on heavy phase drainage tube 86, open backflow heavy phase and go out
Backflow on liquid pipe 87 heavy phase stop valve 871, closes the heavy phase stop valve 851 on heavy phase drain pipe 85, regulates heavy phase feed liquor
Discrepancy in elevation h between bottommost and the bottommost of described heavy phase drain pipe 85 inwall of mouthfuls 872 and heavy phase drain regulation valve 861 with
The heavy phase flow of regulation drain, now the liquid that goes out of heavy phase is first gathered in heavy phase collecting chamber 84, and heavy phase passes through heavy phase drainage tube 86
Back into heavy phase feed tube 8, due to the backflow bottommost of the heavy phase inlet 872 on heavy phase drain pipe 87 and heavy phase drain pipe
The heavy phase stop valve 851 being provided with between at the bottom of the pipe of 85 in discrepancy in elevation h, and heavy phase drain pipe 85 is closed, therefore in heavy phase drain pipe 85
Heavy phase hydrops only have more than this height h and could go out liquid from backflow heavy phase drain pipe 87；Before not up to this height h, heavy phase
Go out liquid and back into this heavy phase feed tube 8 by heavy phase drainage tube 86, make heavy phase increase at the actual flow within centrifugal extractor,
Typically increase to the two-phase flow ratio suitable proportion at 1:4～1:5, reach this suitable extract stream than ratio after, heavy phase
The heavy phase collected in collecting chamber can be gradually increased until liquid level and exceed discrepancy in elevation h, and heavy phase can be steady from backflow heavy phase drain pipe 87
Flow out, be more than this grade of reflux course of heavy phase.
If light phase flow is less, open on light phase drainage tube 76 light phase drain regulation valve 761, open backflow with light phase go out
Backflow on liquid pipe 77, with light phase stop valve 771, is closed the light phase stop valve 751 on light phase drain pipe 75, is regulated light phase feed liquor
Discrepancy in elevation h between bottommost and the bottommost of described light phase drain pipe 75 inwall of mouthfuls 772 and light phase drain regulation valve 761 with
The light phase flow of regulation drain, the most light phase liquid that goes out first is gathered in light phase collecting chamber 74, light phase by light phase drainage tube 76
Back into light phase feed tube 7, due to the backflow bottommost of the light phase inlet 772 on light phase drain pipe 77 and light phase drain pipe
The light phase stop valve 751 being provided with between at the bottom of the pipe of 16 in discrepancy in elevation h, and light phase drain pipe 75 is closed, in the most light phase drain pipe 75
Light phase hydrops only have more than this height h could from backflow go out liquid with light phase drain pipe 77；Before not up to this height h, light phase
Go out liquid and back into light phase feed tube 7 by light phase drainage tube 76, make light phase in actual flow increase centrifugal extractor within, one
As increase to the two-phase flow ratio suitable proportion at 1:4～1:5, reach this suitable extract stream than ratio after, light phase receipts
The light phase meeting that collection intracavity is collected is gradually increased until liquid level and exceedes discrepancy in elevation h, and light phase meeting is from refluxing with light phase drain pipe 77 steady flow
Go out, be more than light phase level reflux course.
Claims (10)
1. an online adjustable level reflow type centrifugal extractor, this centrifugal extractor includes upper shell (4) and lower house (5),
The cavity that described upper shell (4) and lower house (5) surround is provided with the separation rotary drum (3) driven by main shaft (2)；On described
Housing (4) is provided with successively by rotary drum (3) isolated heavy phase derive to heavy phase drain pipe (85) heavy phase fluid collection chamber (82) and
Heavy phase collecting chamber (84), is additionally provided with the light phase fluid collection chamber of isolated for rotary drum (3) light phase derivation to light phase drain pipe (75)
And light phase collecting chamber (74) (72)；The both sides of described lower house (5) connect with heavy phase feed tube (8) and light phase feed tube (7) respectively
Logical；Described light phase fluid collection chamber (72), light phase collecting chamber (74) sequentially connect the light phase collection device of composition with light phase drain pipe (75),
Described heavy phase fluid collection chamber (82), heavy phase collecting chamber (84) sequentially connect composition heavy phase collection device with heavy phase drain pipe (85)；Its
It is characterised by: this centrifugal extractor also includes this grade of backflow dress of heavy phase making heavy phase collection device connect with heavy phase feed tube (8)
Put and/or make light phase the level reflux that light phase collection device connects with light phase feed tube (7).
One the most according to claim 1 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: when being provided with
During this grade of reflux of heavy phase, this grade of reflux of described heavy phase includes heavy phase drainage tube (86), described heavy phase drainage tube (86)
Upper end import connect near the liquid level lowest part of heavy phase feed tube (8) side with in heavy phase collecting chamber (84), heavy phase drainage tube
(86) lower end outlet connects with heavy phase feed tube (8), and described heavy phase drainage tube (86) is provided with heavy phase drain regulation valve
(861)；
When being provided with light phase level reflux, described light phase level reflux includes light phase drainage tube (76), described gently
The liquid level lowest part of close light phase feed tube (7) side connects with in light phase collecting chamber (74) in the upper end import of phase drainage tube (76)
Logical, the lower end outlet of light phase drainage tube (76) connects with light phase feed tube (7), described light phase drainage tube (76) is provided with light phase
Drain regulation valve (761).
One the most according to claim 2 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: described heavy phase
This grade of reflux also includes backflow heavy phase drain pipe (87), and the import of described backflow heavy phase drain pipe (87) is inserted described
The pipe bottom of heavy phase drain pipe (85), is provided with heavy phase stop valve (851), institute at the heavy out of described heavy phase drain pipe (85)
The exit stating backflow heavy phase drain pipe (87) is provided with backflow heavy phase stop valve (871)；Described backflow heavy phase goes out liquid
Be provided with heavy phase inlet (872) on the pipe shaft of insertion heavy phase drain pipe (85) of pipe (87), described heavy phase inlet (872) with
The liquid direction that goes out in heavy phase drain pipe (85) is oppositely arranged, and the bottommost of described heavy phase inlet (872) goes out with described heavy phase
It is provided with the discrepancy in elevation (h) between the bottommost of liquid pipe (85) inwall.
One the most according to claim 3 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: described backflow
It is fastened on the bottom of heavy phase drain pipe (85), described packing_seal by packing_seal device (873) with heavy phase drain pipe (87)
Device (873) includes, for being tightly wound around the soft packing_seal (8731) on backflow heavy phase drain pipe (87) outer wall, also wrapping
Including screw thread pair (8732), described screw thread pair (8732) is in locking and uses to compress described soft packing_seal (8731) and fastening backflow
Heavy phase drain pipe (87) or unclamp regulates the end of heavy phase inlet (872) bottommost and described heavy phase drain pipe (85) inwall
The discrepancy in elevation (h) two states between portion.
One the most according to claim 4 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: described light phase
This grade of reflux also includes that backflow light phase drain pipe (77), described backflow are inserted described with the import of light phase drain pipe (77)
The pipe bottom of light phase drain pipe (75), is provided with light phase stop valve (751), institute at the light phase export of described light phase drain pipe (75)
Stating refluxes to be provided with the exit of light phase drain pipe (77) refluxes with light phase stop valve (771)；Described backflow with light phase go out liquid
Be provided with light phase inlet (772) on the pipe shaft of the light phase drain pipe of the insertion (75) of pipe (77), described light phase inlet (772) with
The liquid direction that goes out in light phase drain pipe (75) is oppositely arranged, and the bottommost of described light phase inlet (772) with described light phase go out
It is provided with the discrepancy in elevation (h) between the bottommost of liquid pipe (75) inwall.
One the most according to claim 5 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: described backflow
It is fastened on the bottom of light phase drain pipe (75), described packing_seal by packing_seal device (873) with light phase drain pipe (77)
Device (873) include for be tightly wound around backflow with the soft packing_seal (8731) on light phase drain pipe (77) outer wall, also wrap
Including screw thread pair (8732), described screw thread pair (8732) is in locking and uses to compress described soft packing_seal (8731) and fastening backflow
Light phase drain pipe (77) or unclamp regulates the end of light phase inlet (772) bottommost and described light phase drain pipe (75) inwall
The discrepancy in elevation (h) two states between portion.
7., according to the most adjustable the level reflow type centrifugal extractor of one described in any one of claim 1～6, its feature exists
In: being additionally provided with in this centrifugal extractor and lower house (5) is coated on chuck therein (9), the bottom of described chuck (9) is arranged
The import (N5) of thermal source or coolant, top arranges the outlet (N6) of thermal source or coolant.
8., according to the most adjustable the level reflow type centrifugal extractor of one described in any one of claim 1～6, its feature exists
Arrange along the face of cylinder tangential direction of lower house (5) in: described heavy phase feed tube (8) and light phase feed tube (7), and heavy phase feed liquor
Pipe (8) and light phase feed tube (7) mutually stagger, and the position that arranges of heavy phase feed tube (8) and light phase feed tube (7) makes feed liquid suitable
The direction of rotation the rotary drum (18) in lower house enters inside extracter；Described heavy phase drain pipe (85), light phase drain pipe
(75) face of cylinder tangential direction along lower house (5) is arranged, and heavy phase drain pipe (85), light phase drain pipe (75) mutually stagger,
Heavy phase drain pipe (85), the rotation side that the rotary drum (18) that position makes discharging in lower house is set of light phase drain pipe (75)
To throwing away extracter.
One the most according to claim 5 is a most adjustable level reflow type centrifugal extractor, it is characterised in that: when centrifugal extraction
Take and machine be provided with this grade of reflux of heavy phase and light phase level reflux simultaneously, described heavy phase feed tube (8) and light phase enter
The import department of liquid pipe (7) is provided with tee T, and supervisor's mouth of the tee T of the heavy phase feed tube (8) of centrifugal extractor is with adjacent
The outlet of the heavy phase drain pipe (85) of centrifugal extractor, the other mouth of pipe of the tee T of heavy phase feed tube (8) and adjacent centrifugal
The backflow of the extracter outlet of heavy phase drain pipe (87)；The master of the tee T of the light phase feed tube (7) of centrifugal extractor
The outlet of the light phase drain pipe (75) of the mouth of pipe and adjacent centrifugal extracter, the other mouth of pipe of the tee T of light phase feed tube (7)
Backflow with the adjacent centrifugal extracter outlet of light phase drain pipe (77).
The control method of a kind of the most adjustable level reflow type centrifugal extractor the most according to claim 5, its feature exists
In: when centrifugal extractor is provided with this grade of reflux of heavy phase and light phase level reflux simultaneously, and when big flow ratio occurs
During extraction operating mode, control method is as follows:
If heavy phase flow is less, opens heavy phase drain regulation valve (861) on heavy phase drainage tube (86), open backflow heavy phase and go out
Backflow on liquid pipe (87), with heavy phase stop valve (871), closes the heavy phase stop valve (851) on heavy phase drain pipe (85), regulation
The discrepancy in elevation (h) between bottommost and the bottommost of described heavy phase drain pipe (85) inwall of heavy phase inlet (872), and regulation
The unlatching size of heavy phase drain regulation valve (861), to regulate flow, makes the two-phase flow ratio within centrifugal extractor gradually stablize
1:4～1:5；
If light phase flow is less, open on light phase drainage tube (76) light phase drain regulation valve (761), open backflow with light phase go out
Backflow on liquid pipe (77), with light phase stop valve (771), closes the light phase stop valve (751) on light phase drain pipe (75), regulation
The discrepancy in elevation (h) between bottommost and the bottommost of described light phase drain pipe (75) inwall of light phase inlet (772), and regulation
The unlatching size of light phase drain regulation valve (761), to regulate flow, makes the two-phase flow ratio within centrifugal extractor gradually stablize
1:4～1:5.
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| CN201510133312.4A CN104784967B (en) | 2015-03-25 | 2015-03-25 | One is the most adjustable level reflow type centrifugal extractor and a control method thereof |
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| CN105749581A (en) * | 2016-03-18 | 2016-07-13 | 太仓顺达磁力泵科技有限公司 | Centrifugal extraction device resistant to chemical corrosion |
| CN106219579B (en) * | 2016-07-13 | 2018-09-21 | 合肥通用机械研究院有限公司 | A kind of extraction element of industrial grade methanol |
| CN109082523B (en) * | 2018-09-28 | 2023-07-25 | 中国恩菲工程技术有限公司 | Centrifugal stripping equipment and scandium stripping method |
| CN115611794B (en) * | 2022-08-18 | 2024-04-05 | 鄂尔多斯市瀚博科技有限公司 | Continuous purification process of peroxide initiator for vinyl chloride polymerization |
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| CN2140254Y (en) * | 1992-09-29 | 1993-08-18 | 叶春林 | Extracting unit of cylinder centrifugal extractor |
| CN202700133U (en) * | 2012-04-17 | 2013-01-30 | 青岛科技大学 | Diphase extraction rotating packing bed |
| CN203886227U (en) * | 2014-04-23 | 2014-10-22 | 北京莱伯泰科仪器股份有限公司 | Multifunctional solvent extraction device |
| CN204656059U (en) * | 2015-03-25 | 2015-09-23 | 合肥通用机械研究院 | A kind of online adjustable reflow type centrifugal extractor at the corresponding levels |
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| EP2364758B1 (en) * | 2008-09-30 | 2016-06-29 | Japan Atomic Energy Agency | Continuous collection method of particle component in aqueous solution and apparatus therefor |
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|---|---|---|---|---|
| CN2140254Y (en) * | 1992-09-29 | 1993-08-18 | 叶春林 | Extracting unit of cylinder centrifugal extractor |
| CN202700133U (en) * | 2012-04-17 | 2013-01-30 | 青岛科技大学 | Diphase extraction rotating packing bed |
| CN203886227U (en) * | 2014-04-23 | 2014-10-22 | 北京莱伯泰科仪器股份有限公司 | Multifunctional solvent extraction device |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |