CN106267886B - Liquid distribution trough and its method of work in a kind of extraction tower - Google Patents
Liquid distribution trough and its method of work in a kind of extraction tower Download PDFInfo
- Publication number
- CN106267886B CN106267886B CN201610749337.1A CN201610749337A CN106267886B CN 106267886 B CN106267886 B CN 106267886B CN 201610749337 A CN201610749337 A CN 201610749337A CN 106267886 B CN106267886 B CN 106267886B
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- liquid
- liquid distribution
- heavy phase
- distributing board
- fluid passage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0426—Counter-current multistage extraction towers in a vertical or sloping position
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The present invention relates to liquid distribution trough and its method of work in a kind of extraction tower, cover plate, a liquid distributing board and secondary liquid distributing board are set gradually from top to bottom in cylinder, and separate the cylinder into upper cavity and lower chamber；One end of input duct is stretched into upper cavity through cover plate, other end connection heavy phase liquid conveyance conduit；Once liquid distribution holes are opened up on liquid distributing board, secondary liquid distribution holes are offered on secondary liquid distributing board；Multiple fluid passage pipes are provided with cylinder, fluid passage pipe is the truncated cone structure that diameter expands from up to down, and its upper end open is extended to above cover plate, and lower ending opening extends to the lower section of secondary liquid distributing board.The present invention ensures the uniformity of liquid distribution by liquid distribution process twice, has good liquid distribution effect especially for large-scale tower；By the fluid passage pipe of truncated cone structure, pre-separation preferably can be carried out to light, heavy phase liquid, and the whole height of extraction tower can be reduced.
Description
Technical field
The present invention relates to liquid distribution trough in a kind of liquid distribution trough, more particularly to a kind of tower of liquid-liquid extraction column.
Background technology
In chemical field, for separation of liquid mixtures frequently with extracting process, it is to utilize liquid each component in a solvent
The difference of solubility realizes the separation of liquid-liquid.The process of extraction typically realizes that (density is smaller for a kind of solution in extraction tower
Light phase liquid) continuously entered by the bottom of tower in tower, under buoyancy, to tower top flow；Another solvent (density
Larger heavy phase liquid) continuously entered by the top of tower in tower, due to the effect of gravity, to the flowing underneath of tower, and full of complete
Tower.Solution is dispersed in continuous solvent, by contact of the solution with solvent, one or more of compositional selectings in solution
It is dissolved in continuous solvent, carries out mass transfer.
Effect of the effect of extracting of extraction tower often with liquid distribution trough distribution liquid in tower has much relations.One performance
Good liquid distribution trough can effectively improve separative efficiency, save equipment investment, reach the effect of energy-conservation.
At present, the liquid distribution trough commonly used in commercial Application has slot type, tubular type, injecting type, disc type etc..The weight in extraction tower
Phase liquid is entered by tower top, is flowed out by Action of Gravity Field by bottom of towe, and light phase liquid is entered by bottom of towe, the buoyance lift in heavy phase liquid,
Reach tower top outflow.According to this feature of flow of fluid in extraction tower, liquid distribution trough is but this frequently with pipe distributor
The distributor of type is it is difficult to ensure that the liquid measure of each liquid outflow port outflow is equal, particularly Large Towers, therefore it is difficult to ensure that liquid
The uniformity of body distribution；In addition, extraction tower liquid distribution trough upper and lower part generally requires higher liquid separated space, cause
Extraction tower is higher.
The content of the invention
The invention provides liquid distribution trough and its method of work in a kind of extraction tower, is protected by liquid distribution process twice
The uniformity of liquid distribution is demonstrate,proved, there is good liquid distribution effect especially for large-scale tower；Pass through truncated cone knot
The fluid passage pipe of structure, pre-separation preferably can be carried out to light, heavy phase liquid, and the whole height of extraction tower can be reduced；It is described
Liquid distribution trough is simple in construction, easy to process.
In order to achieve the above object, the present invention is realized using following technical scheme：
Liquid distribution trough in a kind of extraction tower, including cylinder, cover plate, a liquid distributing board, secondary liquid distributing board, enter
Liquid pipe road and fluid passage pipe；The cover plate, a liquid distributing board and secondary liquid distributing board in cylinder from top to bottom according to
Secondary setting, and separate the cylinder into upper cavity and lower chamber；One end of input duct is stretched into upper cavity through cover plate, the other end
Connect heavy phase liquid conveyance conduit；Once liquid distribution holes are opened up on liquid distributing board, are opened on secondary liquid distributing board
Provided with secondary liquid distribution holes；Multiple fluid passage pipes are provided with cylinder, fluid passage pipe is what diameter expanded from up to down
Truncated cone structure, its upper end open are extended to above cover plate, and lower ending opening extends to the lower section of secondary liquid distributing board.
One end of the input duct is stretched into upper cavity from the middle part of cover plate.
Liquid distribution bore dia is more than secondary liquid distribution bore dia, and the quantity of secondary liquid distribution holes is more than
The quantity of liquid distribution holes.
The multiple fluid passage pipe is uniformly arranged on cylinder cross section, a liquid distribution holes, secondary liquid distribution
Hole is uniformly arranged in the surrounding of fluid passage pipe respectively.
The upper cavity is highly less than lower chamber height.
The method of work of liquid distribution trough, comprises the following steps in a kind of extraction tower：
1) liquid distribution trough is arranged in extraction tower, and the heavy phase liquid come from the conveying of heavy phase liquid conveyance conduit passes through feed liquor
Pipeline enters in upper cavity, and is rapidly filled with upper cavity；Heavy phase liquid in upper cavity passes through one on a liquid distributing board
Secondary liquid distribution holes are flowed into lower chamber, are realized first uniform；
2) in lower chamber, heavy phase liquid continues to flow downward along the secondary liquid distribution holes on secondary liquid distributing board,
Because the diameter of secondary liquid distribution holes is less than a liquid distribution holes, heavy phase liquid flowing velocity slows down, the volume of lower chamber
More than the volume of upper cavity, therefore more heavy phase liquids can be taken in；Because the quantity of secondary liquid distribution holes is more than a not good liquor
The quantity of body distribution hole, therefore heavy phase liquid can be realized further uniformly；Heavy phase liquid is formed after secondary liquid distribution holes
Dispersed phase is uniformly flowed into tower in light phase liquid；
3) light phase liquid and the heavy phase liquid entered by extraction tower bottom of towe in tower blends, and enters fluid passage during upward buoyance lift
In pipe, the liquid level that the fluid passage pipe of truncated cone structure can be such that light phase liquid assembles at top is higher, so as to realize light, heavy phase
The pre-separation of liquid；
4) light phase liquid after liquid distribution trough pre-separation continues up buoyance lift and realizes final point with heavy phase liquid
From the light phase liquid after separation flows under the influence of gravity into bottom of towe from overhead extraction, heavy phase liquid.
Compared with prior art, the beneficial effects of the invention are as follows：
1) liquid distribution process, therefore whether small-sized extraction tower or large-scale extraction twice is passed through by liquid distribution trough
Tower, the effect for being uniformly distributed liquid is attained by, makes extraction process more efficient；
2) light phase liquid is passed through by the fluid passage pipe of truncated cone structure in extraction tower, is more favorable for blending point of two-phase
From, and segregation section height can be reduced, reduce the whole height of extraction tower；
3) connected between fluid passage pipe and cover plate and liquid distributing board using expanded joint mode, it is simple in construction, it is easy to process.
Brief description of the drawings
Fig. 1 is the front view of liquid distribution trough in extraction tower of the present invention.
Fig. 2 is the axonometric drawing of liquid distribution trough in extraction tower of the present invention.
Fig. 3 is the structural representation of a liquid distributing board of the present invention.
Fig. 4 is the structural representation of secondary liquid distributing board of the present invention.
In figure：1. 2. cover plate of cylinder, 3. not good liquors of 4. fluid passage pipe of liquid distributing board, 5. input duct 6. 2
7. upper cavity of the body distribution grid liquid distribution holes of liquid distribution holes 10. 2 times of 8. lower chamber 9. 1 times
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As Figure 1-Figure 2, liquid distribution trough in a kind of extraction tower of the present invention, including cylinder 1, cover plate 2, a not good liquor
Body distribution grid 3, secondary liquid distributing board 6, input duct 5 and fluid passage pipe 4；Described 2, and of liquid distributing board 3 of cover plate
Secondary liquid distributing board 6 is set gradually from top to bottom in cylinder 1, and cylinder 1 is separated into upper cavity 7 and lower chamber 8；Feed liquor
One end of pipeline 5 is stretched into upper cavity 7 through cover plate 2, other end connection heavy phase liquid conveyance conduit；Liquid distributing board 3
On open up once liquid distribution holes 9 (as shown in Figure 3), secondary liquid distribution holes 10 are offered on secondary liquid distributing board 6 (such as
Shown in Fig. 4)；Multiple fluid passage pipes 4 are provided with cylinder 1, fluid passage pipe 4 is the truncated cone that diameter expands from up to down
Structure, its upper end open extend to the top of cover plate 2, and lower ending opening extends to the lower section of secondary liquid distributing board 6.
One end of the input duct 5 is stretched into upper cavity 7 from the middle part of cover plate 2.
Liquid distribution holes 9 diameter is more than the secondary diameter of liquid distribution holes 10, the number of secondary liquid distribution holes 10
Amount is more than the quantity of a liquid distribution holes 9.
The multiple fluid passage pipe 4 is uniformly arranged on the cross section of cylinder 1, a liquid distribution holes 9, secondary liquid point
Cloth hole 10 is uniformly arranged in the surrounding of fluid passage pipe 4 respectively.
The height of upper cavity 7 is less than the height of lower chamber 8.
The method of work of liquid distribution trough, comprises the following steps in a kind of extraction tower：
1) liquid distribution trough is arranged in extraction tower, and the heavy phase liquid come from the conveying of heavy phase liquid conveyance conduit passes through feed liquor
Pipeline 5 enters in upper cavity 7, and is rapidly filled with upper cavity 7；Heavy phase liquid in upper cavity 7 passes through on a liquid distributing board 3
A liquid distribution holes 9 be flowed into lower chamber 8, realize first uniform；
2) in lower chamber 8, heavy phase liquid continue along the secondary liquid distribution holes 10 on secondary liquid distributing board 6 to flow down
Dynamic, because the diameter of secondary liquid distribution holes 10 is less than a liquid distribution holes 9, heavy phase liquid flowing velocity slows down, lower chamber 8
Volume be more than the volume of upper cavity 7, therefore more heavy phase liquids can be taken in；Because the quantity of secondary liquid distribution holes 10 is big
In the quantity of a liquid distribution holes 9, therefore heavy phase liquid can be realized further uniformly；The weight after secondary liquid distribution holes 10
Phase liquid forms dispersed phase and uniformly flowed into tower in light phase liquid；
3) light phase liquid and the heavy phase liquid entered by extraction tower bottom of towe in tower blends, and enters fluid passage during upward buoyance lift
In pipe 4, the liquid level that the fluid passage pipe 4 of truncated cone structure can be such that light phase liquid assembles at top is higher, light, again so as to realize
The pre-separation of phase liquid；
4) light phase liquid after liquid distribution trough pre-separation continues up buoyance lift and realizes final point with heavy phase liquid
From the light phase liquid after separation flows under the influence of gravity into bottom of towe from overhead extraction, heavy phase liquid.
A larger-diameter liquid distribution holes 9 are uniformly opened up on liquid distributing board 3, its effect is to heavy phase
Liquid is distributed in advance, and due to the small volume of upper cavity 7, heavy phase liquid is full of upper cavity 7 quickly after entering, it is thus ensured that
Trickle, guarantee heavy phase liquid are distributed uniform each liquid distribution holes 9 for the first time simultaneously from a liquid distributing board 3
Property.
The secondary liquid distribution holes 10 of small diameter are uniformly opened up on the secondary liquid distributing board 6, heavy phase liquid is by upper
Cavity 7 is further uniformly distributed after entering lower chamber 8, is divided by can ensure that heavy phase liquid after liquid distribution process twice in tower
Cloth is uniform.
The fluid passage pipe 4 is the truncated cone structure that upper diameter is small, lower diameter is big.Due to it is light in extraction tower,
Heavy phase liquid has certain blending, therefore the separated space of certain altitude is needed above liquid distribution trough；In the present invention,
Blend liquid and pre-separation is carried out in fluid passage pipe 4, using the fluid passage pipe 4 of truncated cone structure, light phase liquid can be made
Higher, the more conducively separation of two-phase liquid in the liquid level of the top of fluid passage pipe 4 aggregation.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. liquid distribution trough in a kind of extraction tower, it is characterised in that including cylinder, cover plate, a liquid distributing board, secondary liquid
Distribution grid, input duct and fluid passage pipe；The cover plate, a liquid distributing board and secondary liquid distributing board in cylinder from
Set gradually under above, and separate the cylinder into upper cavity and lower chamber；Upper cavity is stretched into one end of input duct through cover plate
In, other end connection heavy phase liquid conveyance conduit；Once liquid distribution holes, secondary liquid point are opened up on liquid distributing board
Secondary liquid distribution holes are offered on fabric swatch；Be provided with multiple fluid passage pipes in cylinder, fluid passage pipe be diameter on to
The truncated cone structure of lower expansion, its upper end open are extended to above cover plate, and lower ending opening extends to secondary liquid distributing board
Lower section.
2. liquid distribution trough in a kind of extraction tower according to claim 1, it is characterised in that one end of the input duct
Stretched into the middle part of from cover plate in upper cavity.
3. liquid distribution trough in a kind of extraction tower according to claim 1 a, it is characterised in that liquid distribution holes
Diameter is more than secondary liquid distribution bore dia, and the quantity of secondary liquid distribution holes is more than the quantity of a liquid distribution holes.
4. liquid distribution trough in a kind of extraction tower according to claim 1, it is characterised in that the multiple fluid passage pipe
It is uniformly arranged on cylinder cross section, a liquid distribution holes, secondary liquid distribution holes are equal in the surrounding of fluid passage pipe respectively
Even setting.
5. liquid distribution trough in a kind of extraction tower according to claim 1, it is characterised in that the upper cavity is highly less than
Lower chamber height.
6. the method for work of liquid distribution trough in a kind of extraction tower according to claim 1, it is characterised in that including as follows
Step：
1) liquid distribution trough is arranged in extraction tower, and the heavy phase liquid come from the conveying of heavy phase liquid conveyance conduit passes through input duct
Into in upper cavity, and it is rapidly filled with upper cavity；Heavy phase liquid in upper cavity passes through the not good liquor on a liquid distributing board
Body distribution hole is flowed into lower chamber, is realized first uniform；
2) in lower chamber, heavy phase liquid continues to flow downward along the secondary liquid distribution holes on secondary liquid distributing board, due to
The diameter of secondary liquid distribution holes is less than a liquid distribution holes, and heavy phase liquid flowing velocity slows down, and the volume of lower chamber is more than
The volume of upper cavity, therefore more heavy phase liquids can be taken in；Because the quantity of secondary liquid distribution holes is more than a liquid point
The quantity of cloth hole, therefore heavy phase liquid can be realized further uniformly；Heavy phase liquid is formed scattered after secondary liquid distribution holes
Mutually uniformly flow into tower in light phase liquid；
3) light phase liquid and the heavy phase liquid entered by extraction tower bottom of towe in tower blends, and enters fluid passage pipe during upward buoyance lift
Interior, the liquid level that the fluid passage pipe of truncated cone structure can be such that light phase liquid assembles at top is higher, so as to realize light, heavy-phase liquid
The pre-separation of body；
4) light phase liquid after liquid distribution trough pre-separation continues up buoyance lift and realized with heavy phase liquid and is finally recovered, point
Light phase liquid from after flows under the influence of gravity into bottom of towe from overhead extraction, heavy phase liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749337.1A CN106267886B (en) | 2016-08-29 | 2016-08-29 | Liquid distribution trough and its method of work in a kind of extraction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610749337.1A CN106267886B (en) | 2016-08-29 | 2016-08-29 | Liquid distribution trough and its method of work in a kind of extraction tower |
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| Publication Number | Publication Date |
|---|---|
| CN106267886A CN106267886A (en) | 2017-01-04 |
| CN106267886B true CN106267886B (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610749337.1A Active CN106267886B (en) | 2016-08-29 | 2016-08-29 | Liquid distribution trough and its method of work in a kind of extraction tower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3819014A1 (en) * | 2019-11-05 | 2021-05-12 | Hirschberg Engineering AG | Grid-like fractal distributor or collector element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2574754Y (en) * | 2002-10-25 | 2003-09-24 | 天津天大天久科技股份有限公司 | Composite funnel cyclone sand precipitating device |
| CN202237377U (en) * | 2011-08-08 | 2012-05-30 | 南京师范大学 | Ring-type distributor in stirred liquid-liquid extracting tower |
| CN204745734U (en) * | 2015-06-12 | 2015-11-11 | 清华大学 | Filler extraction tower redistributor |
| CN206027155U (en) * | 2016-08-29 | 2017-03-22 | 中冶焦耐(大连)工程技术有限公司 | Liquid distributor in extraction tower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070102358A1 (en) * | 2005-11-09 | 2007-05-10 | Cera Inc. | Solid phase extraction column |
-
2016
- 2016-08-29 CN CN201610749337.1A patent/CN106267886B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2574754Y (en) * | 2002-10-25 | 2003-09-24 | 天津天大天久科技股份有限公司 | Composite funnel cyclone sand precipitating device |
| CN202237377U (en) * | 2011-08-08 | 2012-05-30 | 南京师范大学 | Ring-type distributor in stirred liquid-liquid extracting tower |
| CN204745734U (en) * | 2015-06-12 | 2015-11-11 | 清华大学 | Filler extraction tower redistributor |
| CN206027155U (en) * | 2016-08-29 | 2017-03-22 | 中冶焦耐(大连)工程技术有限公司 | Liquid distributor in extraction tower |
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| CN106267886A (en) | 2017-01-04 |
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