CN86207618U - Pipe array type pulse sieve-plate column extractor - Google Patents

Pipe array type pulse sieve-plate column extractor Download PDF

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Publication number
CN86207618U
CN86207618U CN 86207618 CN86207618U CN86207618U CN 86207618 U CN86207618 U CN 86207618U CN 86207618 CN86207618 CN 86207618 CN 86207618 U CN86207618 U CN 86207618U CN 86207618 U CN86207618 U CN 86207618U
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China
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plate
sieve
vertical member
extraction column
column
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CN 86207618
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Chinese (zh)
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毛宗强
孙世仁
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Tsinghua University
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Tsinghua University
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Priority to CN 86207618 priority Critical patent/CN86207618U/en
Publication of CN86207618U publication Critical patent/CN86207618U/en
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Abstract

The utility model relates to a pipe array type pulse sieve-plate extraction column, which is applied to various kinds of chemical engineering unit operation of liquid-liquid extraction, and is characterized in that the extraction column is additionally provided with a vertical member. A pulse sieve-plate extraction column with a large diameter is segmented into a series of small cross-section pulse sieve-plate extraction columns, wherein, both ends are provided with redistributors. The height of a mass transfer unit can be low by adopting the column type. The utility model has the advantage that a small experimental result can be enlarged to an industrial scale, and has the advantages of high efficiency and less investment.

Description

Pipe array type pulse sieve-plate column extractor
The utility model relates to a kind of improved pillar extraction equipment, is applicable to various liquid-liquid extraction chemical engineering unit operations.
In existing pulsed sieve-plate extraction column, mostly adopt the mode that makes fluid make the vertical direction pulsating motion to import energy, to guarantee that two phase countercurrent flow is mobile and excellent contact is arranged.The maximum gauge of this post has reached 3 meters at present, and the major defect of existing pulsed sieve-plate extraction column is: one, post directly is that mass transfer characteristic to equipment has a significant impact.For example, when the pulsed sieve-plate extraction column footpath was amplified to 23.5 inches by 3 inches, with 30% tributyl phosphate-kerosene solvent extraction uranyl nitrtate, its height of transfer unit was increased to 5.9 feet by 1.4 feet, increases more than 4 times.The reason that mass-transfer efficiency reduces is to reach vertical mixing of two-phase in the extraction column radially, and inhomogeneities directly becomes big with post and sharply increases.Two, amplify difficulty.Because the complexity of commercial Application can't directly directly be designed industrialized large-scale pulsed sieve-plate extraction column by basic parameter at present.Though some empirical equations are arranged, limitation separately is very big, is difficult to use, and continues to use the method for progressively amplifying always, just can design large diameter pulsed sieve-plate extraction column by small test, medium-sized test and even pilot-plant test.Not only expensively take thing, and influenced pulsed sieve-plate extraction column in industrial application.
United States Patent (USP) 3,854,176 disclose a kind of circular column.Its design feature is to constitute the extraction shell of column with two concentric garden tubes, replaces garden shape sieve plate commonly used with the garden annular sieve plate, has so not only guaranteed nuclear criticality safety from the physical dimension aspect, but also has reduced height of transfer unit.Its shortcoming is that production capacity is littler than the normal pulsed sieve plate extraction column with diameter.
The purpose of this utility model is to provide a kind of height of transfer unit low and can amplify any multiple as required and do not increase the pulsed sieve-plate extraction column of its height of transfer unit.
Feature of the present utility model is that the height of setting up each vertical member of vertical member in pulsed sieve-plate extraction column between the sieve plate equals the distance between sieve plate, all vertical members keep same orientation that the sectional area that the pulsed sieve-plate column shell of column is divided into a series of parallel connections is shaped as triangle, quadrangle or hexagonal special-shaped tubulose small-pulse effect sieve plate extraction column, and the get along well liquid of other little extraction column of the liquid in each little extraction column is ganged up.The redistributor of dividing fabric swatch and eddy flow distribution grid formation equally is equipped with at plate section two ends, make that the entrance concentration of each small bore pulsed sieve-plate extraction column is identical, the mass-transfer performance of large and small like this pulsed sieve-plate extraction column is identical, that is has overcome vertically mixing and the radially harmful effect of inhomogeneities in the major diameter pulsed sieve-plate extraction column.
The utility model is achieved through the following technical solutions.
Common pulsed sieve-plate extraction column is by last expanding reach (1), following bellend (7), and water inlet (2) and distributor (12), organic facies inlet (8) and distributor (11), water outlet (9), organic facies export (13), pulse enters the mouth (10) and sieve plate (5) is formed.Two-phase is counter-current flow in extraction column, and applying pulse promotes liquid flow, and sieve plate is to strengthen two alternate mass transfers.The utility model characteristics are to set up vertical member (6) between the sieve plate (5) the major diameter pulsed sieve-plate column is divided into many uniform little spaces.The cross section in the little space that vertical member plate (14), (15) constitute can be triangle (17), quadrangle (18), and hexagon (19), the size of small bore is relevant with the post footpath and the little experiment condition of big pulsed sieve-plate column.The height of vertical member (6) is 2~15 centimetres, just in time equals the distance between two sieve plates (5).Utilize the locating hole (16) on the vertical member to make the inner all vertical members of post keep identical orientation, thereby form triangle or shape tubes such as quadrangle or hexagon plurality of parallel, that run through whole effective plate section.Like this, through the performance of a shape tube of little measuring, just can grasp the performance of whole major diameter pulsed sieve-plate extraction column.The material of the vertical member that adopts among the present invention can be used nonmetallic materials such as metal materials such as carbon steel, stainless steel, titanium, also available plastics, lucite, pottery.Vertical member in same pulsed sieve-plate extraction column can be commaterial, also can adopt two kinds of different materials simultaneously.
For the major diameter pulsed sieve-plate extraction column, the number of shape tube is more than or equal to 10.For liquid is distributed in each shape tube equably, except two-phase distributor (11,12), also the upper/lower terminal in pulsed sieve-plate extraction column plate section is equipped with liquid re-distributor.Liquid re-distributor is by dividing fabric swatch (3) equally and eddy flow distribution grid (4) alternately rearranges, the spacing of plate (3) and (4) is 2~15 centimetres, number that it is definite and spacing depend on the diameter of big pulsed sieve-plate extraction column, for 1 rice diameter pulsed sieve-plate extraction column, its each liquid re-distributor is made up of 10~15 blocks of plates, and its distance between plates can be 5 centimetres.
The spacing of sieve plate (5) is 2~15 centimetres, and free cross-sectional area is 0.2~0.5, and the hole diameter of sieve (perforated) plate is 2~15 millimeters, and the sieve aperture shape can be the nozzle-like of flat hole or band boss.Concrete parameter should be complementary with the shape of vertical member (6) during use.
The utility model compared with prior art, expenditure of construction with the pulsed sieve-plate extraction column of diameter is directly proportional with its post height, this column type can reduce the post height effectively, and the post footpath is big more, effect is remarkable more, so just can reduce the expenditure of construction of equipment, also can reduce capital expenditure, reagent useful load and consumption simultaneously.Safe in addition single step of releasing ten-strike also will be saved a large amount of experimental expenses.
Accompanying drawing Fig. 1 shell and tube pulse extraction rod structure schematic diagram
Fig. 2 vertical member main body schematic diagram
Fig. 3 vertical member transverse cross-sectional view
(1) goes up expanding reach, (2) water inlet, (3) and divide fabric swatch, (4) eddy flow distribution grid, (5) sieve plate, (6) vertical member, (7) expanding reach, (8) organic facies inlet, the outlet of (9) water, (10) pulse inlet, (11), (12) distributor, the outlet of (13) organic facies, (14), (15) vertical member plate down equally, (16) locating hole, (17) (18) (19) triangle, quadrangle, hexagonal vertical member transverse cross-sectional view.
Embodiment:
When pulsed sieve-plate extraction column that known diameter is 5 centimetres separated nickelous sulfate-cobaltous sulfate, it was 0.3 meter that experiment records its height of transfer unit, and number of mass transfer unit equals 5.Now require to be designed under the similarity condition, production capacity is amplified 100 times pulsed sieve-plate extraction column.
One, determines the post footpath
Desire production capacity and amplify 100 times, then require the net sectional area of post to amplify 100 times.
5 cm diameter cylinders long-pending=3.14/4 * 5 2=19.6 centimetres 2The cross section of the vertical member of selected pulsed sieve-plate extraction column of the present invention be square, and then 0.3 centimetre of vertical member thickness of slab is got in its length of side=4.4 centimetre, and then required post directly is:
Post of the present invention footpath= 4 × (4.4+0.3) 2 × 100 3.14 = 53
Two, determine the post height
Adopt the present invention, the effective plate section height of the effective plate section of its huge pillar height=The columns+redistributor height.
To diameter is post of the present invention about 50 centimetres, and redistributor divides fabric swatch (3) equally by 2 and 2 eddy flow distribution grids (4) are formed, and its distance between plates is 5 centimetres, and then each redistributor height is 20 centimetres.The structure of sieve plate (5) is identical with the The columns sieve plate.Like this
The effective plate section of 53 cm diameter posts=5 * 0.3+2 * 0.2=1.9 rice
As seen, adopt column type of the present invention to amplify, minor diameter pulsed sieve-plate column effective plate section height (1.5 meters) is close when its effective plate section and experiment, and adopts common pulsed sieve-plate extraction column, needs post directly to be 50 centimetres, and effectively the plate section is 6 meters.

Claims (4)

1, a kind of pulsed sieve-plate extraction column, comprise water and organic facies import and export [2.8,9.13], sieve plate [5] and two-phase distributor [11,12], it is characterized in that between sieve plate [5], setting up vertical member [6], the height of each vertical member equals the distance between sieve plate [5], all vertical members keep same orientation that the pulsed sieve-plate column shell of column is divided into a series of parallel connections, cross sectional shape is a triangle, quadrangle or hexagonal special-shaped tubulose small-pulse effect sieve plate extraction column, the get along well liquid of other little extraction column of liquid in each little extraction column is ganged up, and plate section two ends are equipped with and are divided the redistributor that fabric swatch [3] and eddy flow distribution grid [4] constitute equally.
2, device according to claim 1 is characterized in that the material of vertical member can be used the also available nonmetallic materials of carbon steel metal material, and the vertical member of available same material in an extraction column also can be with the vertical member of two kinds of materials.
3, device according to claim 1, the height that it is characterized in that each vertical member is 2~15 centimetres; Its cross section is triangle, quadrangle or hexagon, and vertical member is provided with locating hole.
4, device according to claim 1 is characterized in that redistributor divides fabric swatch (3) and eddy flow distribution grid (4) equally, and two kinds of distribution grids are staggered, and its spacing is 2~15 centimetres, and the number of distribution grid directly determines according to post.
CN 86207618 1986-10-27 1986-10-27 Pipe array type pulse sieve-plate column extractor Ceased CN86207618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 86207618 CN86207618U (en) 1986-10-27 1986-10-27 Pipe array type pulse sieve-plate column extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 86207618 CN86207618U (en) 1986-10-27 1986-10-27 Pipe array type pulse sieve-plate column extractor

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CN86207618U true CN86207618U (en) 1987-12-09

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CN 86207618 Ceased CN86207618U (en) 1986-10-27 1986-10-27 Pipe array type pulse sieve-plate column extractor

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105194A (en) * 2011-11-11 2013-05-15 中核四〇四有限公司 Pulsed extraction column parameter blowing measurement and interface control method
CN103111089A (en) * 2013-02-25 2013-05-22 中国科学院过程工程研究所 Extracting tower, extracting method and application of high-viscosity material
CN103252110A (en) * 2013-06-06 2013-08-21 苏州市金翔钛设备有限公司 Pulse sieve-plate tower for acetic acid extraction device
CN106702183A (en) * 2016-12-28 2017-05-24 中核四0四有限公司 Method for fixing sieve plates of pulse sieve plate column
CN117438123A (en) * 2023-12-22 2024-01-23 中国核电工程有限公司 Method and device for determining uranium extraction zone in extraction column and method for controlling position of uranium extraction zone

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103105194A (en) * 2011-11-11 2013-05-15 中核四〇四有限公司 Pulsed extraction column parameter blowing measurement and interface control method
CN103105194B (en) * 2011-11-11 2015-04-29 中核四0四有限公司 Pulsed extraction column parameter blowing measurement and interface control method
CN103111089A (en) * 2013-02-25 2013-05-22 中国科学院过程工程研究所 Extracting tower, extracting method and application of high-viscosity material
CN103111089B (en) * 2013-02-25 2015-04-01 中国科学院过程工程研究所 Extracting tower, extracting method and application of high-viscosity material
CN103252110A (en) * 2013-06-06 2013-08-21 苏州市金翔钛设备有限公司 Pulse sieve-plate tower for acetic acid extraction device
CN103252110B (en) * 2013-06-06 2015-07-29 苏州市金翔钛设备有限公司 A kind of for the pulsed perforated-plate tower in Extraction of Acetic Acid device
CN106702183A (en) * 2016-12-28 2017-05-24 中核四0四有限公司 Method for fixing sieve plates of pulse sieve plate column
CN117438123A (en) * 2023-12-22 2024-01-23 中国核电工程有限公司 Method and device for determining uranium extraction zone in extraction column and method for controlling position of uranium extraction zone
CN117438123B (en) * 2023-12-22 2024-05-07 中国核电工程有限公司 Method and device for determining uranium extraction zone in extraction column and method for controlling position of uranium extraction zone

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