CN2454005Y - Multi-stage reverse-flow liquid-liquid contacting device - Google Patents
Multi-stage reverse-flow liquid-liquid contacting device Download PDFInfo
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- CN2454005Y CN2454005Y CN 99204935 CN99204935U CN2454005Y CN 2454005 Y CN2454005 Y CN 2454005Y CN 99204935 CN99204935 CN 99204935 CN 99204935 U CN99204935 U CN 99204935U CN 2454005 Y CN2454005 Y CN 2454005Y
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Abstract
The utility model relates to a liquid-liquid contact device which is a novel horizontal box type gravity mixing clarifier which is characterized in that a front chamber is not arranged; interface heights of clarifying chambers of all levels are controlled by heavy phase weirs immersed in light phases; mixed phase holes combined by vertical holes and horizontal holes are adopted; a mixing phase ratio is controlled via adjustable liquid phase circulation in stages (for a large scale, a guide pipe is added to improve flow types in the clarifying chamber). Production practice proves that compared with a general mixing clarifier, the utility model has the advantages of extremely superior operating stability, high efficiency, low energy consumption, low noise, low input amount of organic phases, easy operation and strong adaptability.
Description
The utility model relates to the solvent extraction technology field, is specifically related to a kind of multi-stage countercurrent liquid-gas-liquid contacting device, is applicable to that two not miscible or two miscible liquid phases of part directly contact to realize the multistage liquid-liquid extraction process of mass transfer.
Early stage multi-stage countercurrent liquid-gas-liquid contacting device, the rare liquid phase that is delivered to of inter-stage liquid phase is to realize by the pump that is contained in the outside.For overcoming this shortcoming, people go to improve it along two technology paths, design the multistage liquid gas-liquid contacting device of successful pump-mixed type and gravity-type respectively.Level formula liquid-liquid-liquid contactor is also referred to as mixer-settler extractor.Originally so-called pump-mixed type refers to an impeller and not only plays immixture but also directly play a kind of design type that inter-stage is carried the pumping action of liquid; This notion was extended to naturally on the same axle two impellers was housed afterwards, and one special plays immixture, another plays the design type of pumping action specially.Most mixer-settler extractors all design according to the pump mixing principle.It is not by the pumping action of rotary blade but by a kind of design type of density of liquid phase difference that so-called gravity-type refers to flowing of liquid phase.
Multistage liquid liquid-liquid contactor of the present utility model belongs to the gravity-type mixer-settler extractor.
British Nuclear Fuels PLC is used for uranium, plutonium and separates WINDSCALE mixer-settler extractor with purifying with fission product, belong to the gravity-type mixer-settler extractor, be to succeed in developing on the basis of Holley-Mott mixer-settler extractor, it has simple in structure, advantage such as liquid phase is still negotiable when not having cup, or several impellers to stop the rotation.But there is following shortcoming in it:
(1) clarifying chamber's interfacial level instability.This equipment mixing chamber does not admit of the liquid-phase reflux from the clarifying chamber, equals the stream ratio to guarantee to mix to compare; The clarifying chamber must be enough big so that dispersion district be positioned at mix mutually mouthful under; Under the negligible condition of the loss of flood peak of each phase mouth, clarifying chamber's interfacial level expression formula that people such as Williams provide is as follows so:
In the formula: h
A, h
M--be respectively interfacial level and mix open height mutually
Q
A, Q
S--be respectively heavy phase and light feed rate mutually
R
f, R--is respectively two phase flow than compare (light phase volume/heavy phase volume) with mixing
ρ
A, ρ
S, ρ
M--be respectively heavy phase, light phase and the density of mixing mutually
As seen have only when the feed rate of the density of each phase and two-phase or its flow-rate ratio (or comparing) are invariable from following formula, interfacial level could be constant.But in fact: 1) before extraction process reaches the operation poised state, along with the density of each phase of carrying out of mass transfer can change, the change in concentration of feed liquid will cause variable density in process of production; The flow of 2) charging two-phase or flow-rate ratio can not be always constant; 3) disperse the tagma always not to be positioned to mix mutually mouthful under, when expand to mix mutually mouthful more than, the liquid level of this grade mixing chamber will raise, thereby causes that upper level (by heavy phase stream preface, down with) interface, clarifying chamber raises; 4) aperture on the mixing chamber sidewall always is subjected to the effect of rotary blade side pressure head, square being directly proportional of the value of side pressure head and rotating speed, and the tightness of the fluctuation of voltage and driving belt all will influence the rotating speed of impeller; 5) the caused liquid phase of fluctuation of a level clarifying chamber interfacial level stores and discharges in this level, will change the flow that flows into the adjacent level mixing chamber, thereby causes the interface fluctuation of other grade.So under the situation without any control measure, the interfacial level of mixer-settler extractor is to be difficult to maintenance stablize constant.
(2) this extractor equals to flow ratio for keeping mixing to compare, thereby does not allow have liquid phase to be taken place to the circulation of mixing chamber by the clarifying chamber in the level.This mixes bad cause stage efficiency lower and entrainment loss increase because of two-phase with regard to making when the two phase flow difference is big.
(3) because the area of the chamber that asks for a clarification is enough big the dispersion district be positioned at mix mutually mouthful under, this just makes clarifying chamber's work of can only finishing drilling in very uneconomic wedge shape dispersion tagma; In addition according to our result for a rotary blade side pressure measure of spread, this extractor mixes mutually, and the position of mouth just in time is in the relative negative pressuren zone scope of pivoting leaf wheel blade side pressure head, so that offset some based on the liquid phase discharge head that hydrostatic equilibrium produced, this feasible increase liquid that often needs in order to improve handling capacity is dark.Thereby equipment volume is huger.
The purpose of this utility model is to overcome above-mentioned weak point, a kind of multistage liquid gas-liquid contacting device is provided, this device does not have cup not guide the pipeline that impeller revolves the nest center into yet, interfacial level stable, the clarifying chamber is compared with two-phase feed rate, density, mixing and wheel speed has nothing to do, mix and compare and to regulate, the dispersion tagma of clarifying chamber needn't be positioned at mixes under the phase mouth, needn't be by improving the motive force that liquid improve liquid flow deeply.
The purpose of this utility model realizes by following design, specifically comprise one by the flat and rectangular vessel formed of wall all round, its inner quilt vertical clapboard longitudinally is divided into less one by one rectangle part, each less rectangle part is divided into mixing chamber by vertical diaphragm plate again and thereby the clarifying chamber constitutes extracting stage one by one, it is adjacent with the clarifying chamber of adjacent extracting stage that the mixing chamber of each extracting stage is arranged in, the end of mixing chamber and the end of clarifying chamber, are on same horizontal plane, midfeather is provided with low level heavy phase mouth that flows for heavy phase and the high-order light phase downflow weir that supplies gently to flow mutually, one end of device is provided with heavy phase inlet tube that enters first order mixing chamber and the light phase export pipe that flows out first order clarifying chamber, the other end of device is provided with the heavy out pipe and the light inlet tube mutually that enters the final stage mixing chamber that flows out the final stage clarifying chamber, it is characterized in that in the said clarifying chamber being provided with and be submerged in light heavy phase downflow weir in mutually near heavy phase mouth place, this heavy phase downflow weir is separated out by the dispersion in vertical baffle and the clarifying chamber, and make heavy phase weir form a narrow liquid compartment that falls in heavy phase mouth one side, and form a narrow liquid compartment that rises at opposite side.On the basis of said structure, the top edge that its further feature can be said vertical baffle all is lower than the Free Surface of light phase; Also can be the upper surface that the top edge of said vertical baffle near the heavy phase mouth is lower than light phase, the top edge of said vertical baffle near the heavy out pipe be higher than the Free Surface of light phase.In above scheme, one side can be provided with the type of falling a L-fluid-tight cover to said heavy phase mouth in the clarifying chamber.
Above-mentioned improvement of the present utility model has reached the design effect of expection fully: the liquid-liquid interface of device is highly stable, have nothing to do with the density of liquid phase and the rotating speed of flow and impeller, need not regulate, can be set in advance on the appointed positions as required during design.Mix and compare and to be controlled at about designated value according to technological requirement, need not regulate; But, mixing requires then need regulate at the beginning of the driving when accurate when being compared.Disperse the tagma to be positioned at and mix under the phase mouth, and allow in deep layer and disperse to work under the tagma.Light phase downflow weir has enough drops, and the liquid-vapor interface height of each clarifying chamber does not have the sort of " liquid flooding " phenomenon of Windscale mixer-settler extractor to take place on a horizontal plane, also needn't improve the motive force that liquid phase flows deeply by increasing liquid.As seen the utlity model has two-phase interface highly stable, mix compare can regulate, advantages such as stage efficiency height, volume are little, reliable operation.
The utility model has following accompanying drawing:
Fig. 1 multi-stage countercurrent liquid-gas-liquid contacting device structural representation
Section 1-1 among Fig. 2 Fig. 1, Interface Control assembly schematic diagram
Section 1-1 among Fig. 3 Fig. 1, Interface Control assembly schematic diagram
Section 1-1 among Fig. 4 Fig. 1, Interface Control assembly schematic diagram
Section 1-1 among Fig. 5 Fig. 1, Interface Control assembly schematic diagram
Section 2-2 among Fig. 6 Fig. 1, Interface Control assembly schematic diagram
Section 2-2 among Fig. 7 Fig. 1, Interface Control assembly schematic diagram
Section 3-3 among Fig. 8 Fig. 1, the diaphragm plate assembly schematic diagram that heavy phase refluxes
Section 1-1 among Fig. 9 Fig. 8, heavy phase reflux schematic diagram
Section 1-1 among Figure 10 Fig. 8, heavy phase reflux schematic diagram
Section 3-3 among Figure 11 Fig. 1, the light diaphragm plate assembly schematic diagram that refluxes mutually
Section 1-1 among Figure 12 Figure 11, light phase reflux schematic diagram
Section 1-1 among Figure 13 Figure 11, light phase reflux schematic diagram
Section 4-4 among Figure 14 Fig. 1, chopped-off head light phase export schematic diagram
Section 2-2 among Figure 15 Fig. 1, final stage heavy out schematic diagram
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the utility model general structure schematic diagram, be example with four extracting stages among the figure, but enforcement of the present utility model is not limited to level Four, three grades, Pyatyi, six grades or more multistagely all can implement, and can be that several multi-stage countercurrent liquid-gas-liquid contacting device series connection is used, for this reason, designed the structure of being convenient to connect among the embodiment of the present utility model.The basic structure of this device is identical with prior art, comprise one by flat 1 and sidewall 2 all around, 3,4,5 rectangular vessels of forming, its inner quilt is vertical clapboard 6 longitudinally, 7,8 are divided into less one by one rectangle partly, each less rectangle partly is divided into mixing chamber (M1 by vertical diaphragm plate again, M2, M3, M4) and (S1 of clarifying chamber, S2, S3, S4), thereby constitute an extracting stage (No.1, NO.2, NO.3, NO.4), it is adjacent with the clarifying chamber of adjacent extracting stage that the mixing chamber of each extracting stage is arranged in, the end of mixing chamber and the end of clarifying chamber, are on same horizontal plane, midfeather is provided with low level heavy phase mouth 17 that flows for heavy phase and the high-order light phase downflow weir 22 that supplies gently to flow mutually, one end of device is provided with heavy phase inlet tube 9 that enters first order mixing chamber and the light phase export pipe 21 that flows out first order clarifying chamber, the other end of device is provided with the heavy out pipe 10 and the light inlet tube mutually 20 that enters the final stage mixing chamber that flows out the final stage clarifying chamber, of the present utility model being characterised in that in the said clarifying chamber near heavy phase mouth 17,10 places are provided with and are submerged in light heavy phase downflow weir 16 in mutually, 42, this heavy phase downflow weir 16,42 by vertical baffle 14,15 or 40,41 with the clarifying chamber in dispersion separate out, and make heavy phase weir 16,42 at heavy phase mouth 17,10 1 sides form a narrow liquid compartment 46 that falls, and form a narrow liquid compartment 45 that rises at opposite side.
Said structure of the present utility model has guaranteed that the two-phase interface of clarifying chamber is highly stable, no cup, also do not guide the pipeline that impeller revolves the nest center into, the interfacial level of clarifying chamber is compared with two-phase feed rate, density, mixing and wheel speed has nothing to do, thereby good operational stability is arranged.
Fig. 2, Fig. 3 are heavy phase mouth 17 and heavy phase downflow weir 16 structural representations between interior two extracting stages of device, the top edge that separates the vertical baffle 14,15 of heavy phase downflow weir 16 among the figure all is lower than the Free Surface of light phase, is positioned at clarifying chamber's one side at heavy phase mouth 17 and can be provided with an inverted L shape fluid-tight cover 39.
Fig. 4, Fig. 5 are device final stage heavy out schematic diagrames, heavy out is provided with outlet 10 outward, be beneficial to the multiple arrangement polyphone and connect use, vertical baffle 40,41 top edges that separate heavy phase downflow weir 42 can be lower than the Free Surface (referring to Fig. 4) of light phase, and its top edge also can be higher than the Free Surface (referring to Fig. 5) of light phase.
Use for the ease of the multiple arrangement polyphone, on the basis of such scheme, light phase export of the present utility model is provided with outlet 21, the inboard of outlet 21 is provided with the little compartment that the exterior panel 2,5 by two little weir plates 23,24, a block length bar shaped platter 25 and device constitutes, the weir crest absolute altitude of the light phase downflow weir 22 on the weir crest absolute altitude of two little weir plates 23,24 and the midfeather 6,7,8 is consistent, the top edge of said light phase export pipe 21 inner chambers can be higher or lower than the weir crest absolute altitude of two little weir plates, referring to Fig. 6.
Diaphragm plate in such scheme of the present utility model in the clarifying chamber can design by prior art.In order to avoid the relative negative pressuren zone of side pressure head of rotary blade (agitator) 31, to improve the motive force that liquid phase flows, reduction equipment volume, the utility model have provided a kind of new technical scheme, and its structure is referring to Fig. 8 and Figure 11.Diaphragm plate is by one high and one low vertical clapboard parallel to each other 11 in this programme, the diaphragm plate assembly that the horizontal baffle 13 of 12 and one block length bar shaped is constituted, thereby strip horizontal baffle 13 places lower vertical clapboard 12 tops and be connected with lower vertical clapboard 12 and higher vertical clapboard 11 and form a flat compartment, the left hand edge of higher vertical clapboard 11 or right hand edge have a vertical slotted hole 18, vertically the top of slotted hole 18 is not higher than the height of lower vertical clapboard 12, the top edge of lower vertical clapboard 12 has a horizontal slotted hole 19, the lower surface of the top of horizontal slotted hole 19 and strip dividing plate 13 near or overlap, said diaphragm plate assembly is provided with reflux.Said reflux comprises heavy phase reflux and/or light phase reflux, said heavy phase reflux is: a heavy phase return flow line 29 is arranged below the diaphragm plate assembly, one side has one can move up and down to change the flashboard 26 of heavy phase capacity of returns in the clarifying chamber in heavy phase return flow line 29, said light phase reflux is: have an absolute altitude to be lower than light phase Free Surface in the clarifying chamber at the top edge of higher dividing plate 11, as the high-order rectangular indentation 36 on the weir of gently refluxing mutually, one side has a flashboard 34 that can move up and down to change light phase capacity of returns in the clarifying chamber on this weir 36 of gently refluxing mutually.The principle of present design is: when two phase flow during than (light phase/heavy phase)＞＞1, heavy phase refluxes by opening in level between the mixing chamber and clarifying chamber on the dividing plate low level aperture 29 of appropriate location; When equipment scale is big, for the flow pattern of improving liquid phase in the clarifying chamber to reduce entrainment loss, need couple together with a conduit and an aperture that extends to clarifying chamber's end.When two phase flow during, then by opening in level between the mixing chamber and clarifying chamber the light phase that refluxes of the light downflow weir mutually 36 on the dividing plate than (light phase/heavy phase)＜＜1.When mixing is compared when requiring accurately, then the liquid phase import department of aperture and mozzle all should be provided with flashboard or other any mechanism that can regulate flow regulates capacity of returns; Light phase downflow weir way then wide by regulating weir or height of weir changes capacity of returns.The structure of reflux is referring to Fig. 7～Figure 12.
Fig. 7 to Fig. 9 has provided heavy phase backflow regulation scheme, and in the scheme of Fig. 7, said flashboard 26 moving up and down is pressed on the dividing plate 12 by the lath 27 that connects together with midfeather 6,7,8 and with L template bar 28 that dividing plate 12 connects together.The mozzle 32 that the entrance point and of said heavy phase return flow line 29 extends near clarifying chamber's end in the scheme that Fig. 9 provides is connected, the import of mozzle has an orifice plate 33, said flashboard moving up and down 26 is located at the outside of orifice plate 33, and flashboard 26 is pressed on the dividing plate 12 by the lath 27 that connects together with midfeather 6,7,8 and with L template bar 28 that dividing plate 12 connects together.A high-order breach 30 is arranged on vertical clapboard 11, and this breach plays a part to be communicated with mixing chamber and clarifying chamber's air.
Figure 10～Figure 12 has provided the regulation scheme that gently refluxes mutually, and the said weir flashboard 34 that gently refluxes mutually is pressed on the dividing plate 11 by the L template bar 35 of 36 both sides, backflow weir in the scheme of Figure 10 and Figure 11.Said weir 36 mozzle 37 that one side and extends near clarifying chamber's end in the clarifying chamber that gently refluxes mutually is connected in the scheme of Figure 10 to Figure 12, the end absolute altitude of this mozzle a little less than or the absolute altitude on the weir 36 that equals gently to reflux mutually, the import of mozzle 37 connects a baffle plate 38 that has rectangular indentation, rectangular indentation absolute altitude on the baffle plate 38 a little more than or equal absolute altitude at the bottom of the mozzle, the said weir flashboard 34 that gently refluxes mutually is pressed on the baffle plate 38 by two L template bars 35 that are connected with baffle plate 38.
Because the good control that stable operation is compared with mixing, this device has the high advantage of stage efficiency.Adopt La, the Ce/Pr/Nd three outlet separation processes of D2EHPA extractant, under identical process conditions, the operating result of the traditional extraction tank of this device and rare-earth industry is carried out the mensuration of system, the result is as follows: traditional extraction tank adopts 94 grades, the Nd product purity of gained is 90～96%, and average mark is from factor beta
Nd/Pr=1.18; This device only is used for 80 grades, and under identical feed conditions, the Nd product purity is 99%, β
Nd/PrThe extraction tank that the stage efficiency of=1.31 visible these devices is more traditional is much higher.In addition, because flowing by density contrast of liquid phase needn't improve motive force by strengthening rotating speed, so the input power of unit mixing chamber dischargeable capacity only is 0.16～0.20kW/m
3
Claims (20)
1, a kind of multi-stage countercurrent liquid-gas-liquid contacting device, this device comprises one by flat (1) wall (2 all round, 3,4,5) rectangular vessel of Zu Chenging, its inside is by some vertical vertical clapboards (6,7,8) be divided into several less rectangle parts, each less rectangle part is divided into mixing chamber (M1 by vertical diaphragm plate again, M2, M3, M4) and (S1 of clarifying chamber, S2, S3, S4) thus constitute extracting stage (No1 respectively, No2, No3, No4), it is adjacent with the clarifying chamber of adjacent extracting stage that the mixing chamber of each extracting stage is arranged in, the end of mixing chamber and the end of clarifying chamber, are on same horizontal plane, have the low level aperture (17) and the high-order rectangular indentation (22) that supplies gently to flow into mutually the upper level mixing chamber that enters the next stage mixing chamber for heavy phase stream by heavy phase stream preface on the every midfeather, one end of device is provided with the inlet tube (9) and the outlet (21) that supplies gently to flow out mutually first order clarifying chamber that enters first order mixing chamber for heavy phase, the other end of device is provided with for the inlet tube (20) that gently enters the final stage mixing chamber mutually and supplies heavy phase to flow out the outlet (10) of final stage clarifying chamber, of the present utility modelly be characterised in that clarifying chambers at different levels are near heavy phase mouth (17,10) locate to be provided with a clear chamber interfacial level Control Component that separates out with dispersion, this assembly is communicated with the heavy phase of clarifying chamber by a lower end and upper end heavy phase jaggy rises liquid chamber (45) and one at low level and heavy phase mouth (17,10) the heavy phase liquid reducing chamber (46) that is communicated with constitutes, heavy phase flows into and to rise liquid chamber and go into liquid reducing chamber from the opening overflow of upper end then from rising the liquid chamber lower end, because the height of breach is fixed, if thereby rise liquid chamber upper end breach width enough greatly then formed heavy phase post height fix, so interfacial level is controlled.
2, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1, it is characterized in that said interfacial level Control Component is to be made of heavy phase downflow weir (16,42) and vertical baffle (14,15 or 40,41), make heavy phase weir (16,42) heavy phase mouth (17, a 10) side form a liquid reducing chamber (46) that is communicated with the heavy phase mouth at low level and be communicated with the heavy phase of clarifying chamber in lower end of opposite side formation rise liquid chamber (45).
3, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 2 is characterized in that the top edge of said vertical baffle (14,15 or 40,41) is lower than the Free Surface of the light phase in clarifying chamber, makes during heavy phase weir (16,42) is submerged in gently mutually.
4, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 2, it is characterized in that the top edge of the vertical baffle (14,15) of said close heavy phase mouth (17) is lower than the Free Surface of the light phase in clarifying chamber, the top edge of the vertical baffle (40,41) of said close heavy out (10) is higher than the Free Surface of clarifying chamber, the height of said heavy phase weir (42) be fix or can up-down adjustment, said heavy phase weir (42) is a kind of not by the heavy phase downflow weir of the overflow in air of gently flooding mutually.
5, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1, it is characterized in that said Interface Control assembly is to be made of conduit (43,44), form liquid reducing chamber (46) between conduit (43) and (44) and be communicated with the heavy phase mouth at low level, conduit (43) is that a lower end is communicated with the heavy phase of clarifying chamber, the upper end is opened wide rises liquid chamber (45), and said conduit (43) upper end forms the heavy phase overfall.
6, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1, it is characterized in that said Interface Control assembly is to be made of conduit (43,44), form between conduit (43) and (44) or liquid chamber (45) and be communicated with the heavy phase of clarifying chamber at low level, conduit (43) is the liquid reducing chamber (46) that a upper end is opened wide, the lower end is communicated with the heavy phase mouth, and said conduit (43) upper end forms the heavy phase overfall.
7, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1 is characterized in that the bottom of said heavy phase mouth (17) overlaps with base plate (1).
8, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1 is characterized in that the bottom of said heavy phase mouth (17) and base plate (1) have certain distance, and one side has the fluid-tight cover of a shape of falling L-to said heavy phase mouth (17) in the clarifying chamber.
9, multi-stage countercurrent liquid-gas-liquid contacting device according to claim 1, it is characterized in that in clarifying chamber (S1), locating a little compartment that constitutes by the exterior panel (2,5) of two little weir plates (23,23), a block length bar shaped platter and device near light phase export pipe (21), the weir crest absolute altitude of the light phase downflow weir (22) on the weir crest absolute altitude of two little weir plates (23,24) and the midfeather (6,7,8) is consistent, and the top edge of said light phase export pipe (21) inner chamber can be higher or lower than the top mark height of two little weir plates.
10. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 7, it is characterized in that said reflux comprises heavy phase reflux and/or light phase reflux, said heavy phase reflux is: a heavy phase return flow line (29) is arranged below the diaphragm plate assembly, one side has one can move up and down to change the flashboard (26) of heavy phase capacity of returns in the clarifying chamber in heavy phase return flow line (29), said light phase reflux is: have an absolute altitude to be lower than light phase Free Surface in the clarifying chamber at the top edge of higher dividing plate (11), as the high-order rectangular indentation (36) on the weir of gently refluxing mutually, one side has a flashboard (34) that can move up and down to change light phase capacity of returns in the clarifying chamber on this weir (36) of gently refluxing mutually.
11. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 8, it is characterized in that said reflux comprises heavy phase reflux and/or light phase reflux, said heavy phase reflux is: a heavy phase return flow line (29) is arranged below the diaphragm plate assembly, one side has one can move up and down to change the flashboard (26) of heavy phase capacity of returns in the clarifying chamber in heavy phase return flow line (29), said light phase reflux is: have an absolute altitude to be lower than light phase Free Surface in the clarifying chamber at the top edge of higher dividing plate (11), as the high-order rectangular indentation (36) on the weir of gently refluxing mutually, one side has a flashboard (34) that can move up and down to change light phase capacity of returns in the clarifying chamber on this weir (36) of gently refluxing mutually.
12. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 9, it is characterized in that said reflux comprises heavy phase reflux and/or light phase reflux, said heavy phase reflux is: a heavy phase return flow line (29) is arranged below the diaphragm plate assembly, one side has one can move up and down to change the flashboard (26) of heavy phase capacity of returns in the clarifying chamber in heavy phase return flow line (29), said light phase reflux is: have an absolute altitude to be lower than light phase Free Surface in the clarifying chamber at the top edge of higher dividing plate (11), as the high-order rectangular indentation (36) on the weir of gently refluxing mutually, one side has a flashboard (34) that can move up and down to change light phase capacity of returns in the clarifying chamber on this weir (36) of gently refluxing mutually.
13., it is characterized in that said flashboard moving up and down (26) is pressed on the dividing plate (12) by the lath (27) that connects together with midfeather (6,7,8) and with L template bar (28) that dividing plate (12) connects together according to claim 10 or 11 or 12 described multi-stage countercurrent liquid-gas-liquid contacting devices.
14. according to claim 10 or 11 or 12 described multi-stage countercurrent liquid-gas-liquid contacting devices, it is characterized in that the mozzle (32) that the entrance point and of said heavy phase return flow line (29) extends near clarifying chamber's end is connected, the import of mozzle has an orifice plate (33), said flashboard moving up and down (26) is located at the outside of orifice plate (33), and flashboard (26) is pressed on the dividing plate (12) by the lath (27) that connects together with midfeather (6,7,8) and with L template bar (28) that dividing plate (12) connects together.
15., it is characterized in that the said weir flashboard (34) that gently refluxes mutually is pressed on the dividing plate (11) by the L template bar (35) of both sides, backflow weir (36) according to claim 10 or 11 or 12 described multi-stage countercurrent liquid-gas-liquid contacting devices.
16. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 13 is characterized in that the said weir flashboard (34) that gently refluxes mutually is pressed on the dividing plate (11) by the L template bar (35) of both sides, backflow weir (36).
17. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 14 is characterized in that the said weir flashboard (34) that gently refluxes mutually is pressed on the dividing plate (11) by the L template bar (35) of both sides, backflow weir (36).
18. according to claim 10 or 11 or 12 described multi-stage countercurrent liquid-gas-liquid contacting devices, it is characterized in that the said weir (36) of gently refluxing the mutually mozzle (37) that one side and extends near clarifying chamber's end in the clarifying chamber is connected, the end absolute altitude of this mozzle a little less than or the absolute altitude of weir (36) that equal gently to reflux mutually, the import of mozzle (37) is connecting a baffle plate (38) that has rectangular indentation, rectangular indentation absolute altitude on the baffle plate (38) a little more than or equal absolute altitude at the bottom of the mozzle, the said weir flashboard (34) that gently refluxes mutually is pressed on the baffle plate (38) by the L template bar (35) of baffle plate (38) both sides.
19. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 13, it is characterized in that the said weir (36) of gently refluxing the mutually mozzle (37) that one side and extends near clarifying chamber's end in the clarifying chamber is connected, the end absolute altitude of this mozzle a little less than or the absolute altitude of weir (36) that equal gently to reflux mutually, the import of mozzle (37) is connecting a baffle plate (38) that has rectangular indentation, rectangular indentation absolute altitude on the baffle plate (38) a little more than or equal absolute altitude at the bottom of the mozzle, the said weir flashboard (34) that gently refluxes mutually is pressed on the baffle plate (38) by the L template bar (35) of baffle plate (38) both sides.
20. multi-stage countercurrent liquid-gas-liquid contacting device according to claim 14, it is characterized in that the said weir (36) of gently refluxing the mutually mozzle (37) that one side and extends near clarifying chamber's end in the clarifying chamber is connected, the end absolute altitude of this mozzle a little less than or the absolute altitude of weir (36) that equal gently to reflux mutually, the import of mozzle (37) is connecting a baffle plate (38) that has rectangular indentation, rectangular indentation absolute altitude on the baffle plate (38) a little more than or equal absolute altitude at the bottom of the mozzle, the said weir flashboard (34) that gently refluxes mutually is pressed on the baffle plate (38) by the L template bar (35) of baffle plate (38) both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99204935 CN2454005Y (en) | 1999-03-04 | 1999-03-04 | Multi-stage reverse-flow liquid-liquid contacting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 99204935 CN2454005Y (en) | 1999-03-04 | 1999-03-04 | Multi-stage reverse-flow liquid-liquid contacting device |
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| CN2454005Y true CN2454005Y (en) | 2001-10-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302865A (en) * | 2011-03-02 | 2012-01-04 | 中国科学院过程工程研究所 | Parameter-adjustable three-phase extraction tank |
| CN101991971B (en) * | 2009-08-11 | 2012-06-27 | 中国科学院过程工程研究所 | Mixer settler for three-phase extraction |
| CN102728098A (en) * | 2012-06-21 | 2012-10-17 | 中国科学院过程工程研究所 | Trough and tower combined type continuous extraction apparatus and extraction method |
| CN102743896A (en) * | 2012-06-21 | 2012-10-24 | 中国科学院过程工程研究所 | Tower-type mixing and clarification extraction device with multiple gas stripping sections and extraction method therefor |
| CN106756130A (en) * | 2016-12-30 | 2017-05-31 | 核工业北京化工冶金研究院 | The device and method of uranium are extracted in a kind of ore pulp from high density |
| CN109646996A (en) * | 2019-01-31 | 2019-04-19 | 中国核电工程有限公司 | Mixer-settler |
| CN112770824A (en) * | 2018-11-29 | 2021-05-07 | 美利凯公司 | Liquid-liquid mass transfer process and apparatus |
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1999
- 1999-03-04 CN CN 99204935 patent/CN2454005Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991971B (en) * | 2009-08-11 | 2012-06-27 | 中国科学院过程工程研究所 | Mixer settler for three-phase extraction |
| CN102302865A (en) * | 2011-03-02 | 2012-01-04 | 中国科学院过程工程研究所 | Parameter-adjustable three-phase extraction tank |
| CN102302865B (en) * | 2011-03-02 | 2013-06-05 | 中国科学院过程工程研究所 | Parameter-adjustable three-phase extraction tank |
| CN102728098A (en) * | 2012-06-21 | 2012-10-17 | 中国科学院过程工程研究所 | Trough and tower combined type continuous extraction apparatus and extraction method |
| CN102743896A (en) * | 2012-06-21 | 2012-10-24 | 中国科学院过程工程研究所 | Tower-type mixing and clarification extraction device with multiple gas stripping sections and extraction method therefor |
| CN102743896B (en) * | 2012-06-21 | 2014-07-30 | 中国科学院过程工程研究所 | Tower-type mixing and clarification extraction device with multiple gas stripping sections and extraction method therefor |
| CN102728098B (en) * | 2012-06-21 | 2014-07-30 | 中国科学院过程工程研究所 | Trough and tower combined type continuous extraction apparatus and extraction method |
| CN106756130A (en) * | 2016-12-30 | 2017-05-31 | 核工业北京化工冶金研究院 | The device and method of uranium are extracted in a kind of ore pulp from high density |
| CN106756130B (en) * | 2016-12-30 | 2019-02-26 | 核工业北京化工冶金研究院 | A kind of device and method for extracting uranium from high density ore pulp |
| CN112770824A (en) * | 2018-11-29 | 2021-05-07 | 美利凯公司 | Liquid-liquid mass transfer process and apparatus |
| CN109646996A (en) * | 2019-01-31 | 2019-04-19 | 中国核电工程有限公司 | Mixer-settler |
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