CN106702183B - A kind of pulsed sieve-plate column sieve plate fixing means - Google Patents
A kind of pulsed sieve-plate column sieve plate fixing means Download PDFInfo
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- CN106702183B CN106702183B CN201611235340.8A CN201611235340A CN106702183B CN 106702183 B CN106702183 B CN 106702183B CN 201611235340 A CN201611235340 A CN 201611235340A CN 106702183 B CN106702183 B CN 106702183B
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- sieve plate
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
- C22B60/0265—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries extraction by solid resins
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Abstract
The invention belongs to abstraction purification process equipment technical fields in uranium purifying production field, and in particular to a kind of pulsed sieve-plate column sieve plate fixing means.The present invention realizes that the transverse direction between sieve plate is fixed, can reduce the gap between cylinder and plate string, sufficiently realization mass transfer by center-pole and pull rod etc..By radially fixed between pull rod and pull rod distance sink tube realization sieve plate, it is ensured that sieve plate is not susceptible to deform, and mixing mass transfer is stablized.The longitudinally fixed of sieve plate is realized by center-pole distance sink tube, guarantees that sieve plate plate spacing is equal, and mixing mass transfer is stablized.
Description
Technical field
The invention belongs to abstraction purification process equipment technical fields in uranium purifying production field, and in particular to a kind of pulse sieve
Sheet-pile sieve plate fixing means.
Background technique
At present in extraction equipment used in core field, mainly there are mixer-settler, centrifugal extractor and pulse extraction column three classes.
It is taken up a large area because mixer-settler exists, it is not easy to the defects of excluding dirt；Centrifugal extractor has not easy to repair, equipment knot
The disadvantages of structure is complicated, both extraction equipments are gradually replaced pulse extraction column.
Pulse extraction column mainly exists in the form of sieve plate and two kinds of baffle plate.Pulsed perforated-plate tower is by Van Di jk in 1935
Year invention.Pulsed perforated-plate tower is that by-level, which is placed, presses certain plate spacing for several pieces of sieve plates by central axis in cylindrical tower body
The plate string being fixed together, pulse enter from bottom, and feature is that structure is simple, and flowing and mass-transfer performance are good.But originally due to setting
Standby small in size, processing capacity is low.The fixation of distribution grid mostly uses welding form, is unfavorable for maintenance, maintenance.
Oscillating screen plate tower proposes by Van Di jk in nineteen thirty-five, after developmental research is subject to by Karr A.E and Lo T.C, answer
It is operated for industrial extraction.The basic principle is that by central axis in tower, a kind of parallel sieve plate of aperture is installed, by being located at tower top
Transmission device band movable plate string input mechanical energy of reciprocating vibration.The characteristics of this tower is that flux is big and high-efficient, but vibrates big, equipment
Failure is more, is unfavorable for its continuous and steady operation.
Currently, it is fixed for the sieve plate of large-scale pulsed sieve-plate column based on center-pole fixed form both at home and abroad, but with sieve
Plate increases, and is easily deformed radially, influences its mass transfer effect, while traditional welding technique is also unfavorable for the installation of large scale equipment
And maintenance.Therefore, it is necessary to base oneself upon uranium purification art, a kind of novel pulse sieve-plate column sieve plate fixing means is explored.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of device structures more simply, fixing means is more succinct, disassembly side
Just, the sieve plate fixing means of easy access, cleaning, maintenance purifies conversion field pulsed sieve-plate column for uranium and provides function admirable
Critical component, it is ensured that stable equipment operation, Enlargement Design are reliable.
In order to realize the purpose, the technical solution adopted by the present invention is that：
A kind of pulsed sieve-plate column sieve plate fixing means is applied in uranium purifying production in abstraction purification technique, pulsed sieve
Water phase enters from capital in column, passes through sieve plate by self gravity and mutually exports outflow from column bottom water, and organic phase is from column bottom organic phase
Import enters, and by the effect of buoyancy and impulsive force, enters capital by sieve plate hole and flows out from organic phase outlet；In two phase countercurrent flow
During come into full contact with, realize the exchange of matter, complete uranium and be stripped extract operation；Include the following steps：
(1) main element is determined
The main element fixed for sieve-plate column sieve plate has center-pole, pull rod, center-pole distance sink tube and pull rod distance sink tube；
Realize that the transverse direction of sieve plate is fixed by center-pole；
The radially fixed of sieve plate is realized by pull rod；
By longitudinally fixed between center-pole distance sink tube and pull rod distance sink tube realization sieve plate, by equidistantly fixed side
Sieve plate is fixed on plate string by formula with identical spacing；
It is set respectively along the distance apart from the sieve plate center of circle for 3/5ths radiuses and outermost annulus position on every piece of sieve plate
Two circle apertures are set, are uniformly arranged 8 apertures on every circle annulus, aperture and the sieve plate center of circle be on the same line on two circle annulus；
(2) head is sealed up in center-pole bottom, this end socket is contacted with the lower distribution grid as plate string bearing equipment, is entire plate
The supporting surface of string；
First piece of sieve plate is inserted on center-pole；
(3) place pull rod in the corresponding each position of opening of first piece of sieve plate, in same annulus two adjacent pull rods it
Between angle of circumference be 45° angle；
(4) pull rod is fixed by plug and nut in pull rod bottom, fixes it with first piece of sieve plate；
(5) center-pole distance sink tube is inserted on center-pole；
(6) pull rod distance sink tube is inserted on every pull rod respectively；
(7) after completing step (6), it is put into second piece of sieve plate；
(8) step (5)~(7) are repeated in, after the sieve plate one plate string of composition for placing setting quantity, use spiral shell at the top of pull rod
Bolt fastening, completes its fixation between the sieve plate of the top；
(9) after the completion of step (8), fixed block is packed into central post top portion, central post top portion is fixed on fixed block
On distribution grid, prevent plate string from shaking and vibrating up and down under impulse action.
Further, a kind of pulsed sieve-plate column sieve plate fixing means as described above, center-pole, pull rod, center-pole spacing
Pipe and pull rod distance sink tube use the S30408 stainless steel of same material.
Further, a kind of pulsed sieve-plate column sieve plate fixing means as described above, in step (6), center-pole distance sink tube
Consistent with pull rod distance sink tube height, control sieve plate is indeformable.
Sieve plate fixing means involved in this programme realizes substantially extension and the continuous-stable of pulsed sieve-plate column service life
Runing time is significantly increased, and is effectively reduced uranium purifying conversion production cost, increases the performance of enterprises., behaviour simple with structure
Make simple, the features such as being easily installed, dismantle, safeguarding, the sieve plate suitable for chemical field pulsed sieve-plate column is fixed.Its specific feature
Including the following contents：
1) it by center-pole and pull rod etc., realizes that the transverse direction between sieve plate is fixed, the gap between cylinder and plate string can be reduced, filled
Divide and realizes mass transfer.
2) by radially fixed between pull rod and pull rod distance sink tube realization sieve plate, it is ensured that sieve plate is not susceptible to deform, and mixes
Mass transfer is closed to stablize.
3) the longitudinally fixed of sieve plate is realized by center-pole distance sink tube, guarantees that sieve plate plate spacing is equal, mixing mass transfer is stablized.
4) the features such as above fixed form relies on gravity and realizes, welding, it is easy to operate, easy for assemble or unload,
It is highly reliable, considerably reduce repair and maintenance personnel labor intensity.
Detailed description of the invention
Fig. 1 is the fixed main view of pulsed sieve-plate column sieve plate；
Fig. 2 is the fixed top view of pulsed sieve-plate column sieve plate.
In figure：1. pull rod, 2. pull rod distance sink tubes, 3. center-poles, 4. center-pole distance sink tubes, 5. sieve plates.
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
As depicted in figs. 1 and 2,1. a kind of pulsed sieve-plate column sieve plate fixing means of the invention are applied in uranium purifying production
In abstraction purification technique, water phase enters from capital in pulsed sieve-plate column, passes through sieve plate by self gravity and mutually exports from column bottom water
Outflow, organic phase enters from the organic phase import of column bottom, by the effect of buoyancy and impulsive force, enters capital from having by sieve plate hole
Machine mutually exports outflow；It is come into full contact with during two phase countercurrent flow, realizes the exchange of matter, completed uranium and be stripped extract operation；
It is characterized in that：Include the following steps：
(1) main element is determined
The main element fixed for sieve-plate column sieve plate has center-pole, pull rod, center-pole distance sink tube and pull rod distance sink tube；
Realize that the transverse direction of sieve plate is fixed by center-pole；
The radially fixed of sieve plate is realized by pull rod；
By longitudinally fixed between center-pole distance sink tube and pull rod distance sink tube realization sieve plate, by equidistantly fixed side
Sieve plate is fixed on plate string by formula with identical spacing；
It is set respectively along the distance apart from the sieve plate center of circle for 3/5ths radiuses and outermost annulus position on every piece of sieve plate
Two circle apertures are set, are uniformly arranged 8 apertures on every circle annulus, aperture and the sieve plate center of circle be on the same line on two circle annulus；
Working media includes that dilute nitric acid solution, uranyl nitrate solution, hydrotreated kerosene and TBP etc. have corruption in pulsed sieve-plate column
The medium of corrosion, fixing element material require certain corrosion resistance.According to cylinder material, center-pole, pull rod, center-pole
Distance sink tube and pull rod distance sink tube use the S30408 stainless steel of same material.
(2) head is sealed up in center-pole bottom, this end socket is contacted with the lower distribution grid as plate string bearing equipment, is entire plate
The supporting surface of string；
First piece of sieve plate is inserted on center-pole；
(3) place pull rod in the corresponding each position of opening of first piece of sieve plate, in same annulus two adjacent pull rods it
Between angle of circumference be 45° angle；
(4) pull rod is fixed by plug and nut in pull rod bottom, fixes it with first piece of sieve plate；
(5) center-pole distance sink tube is inserted on center-pole；
(6) pull rod distance sink tube is inserted on every pull rod respectively；Center-pole distance sink tube is consistent with pull rod distance sink tube height, control
Sieve plate processed is indeformable.
(7) after completing step (6), it is put into second piece of sieve plate；
(8) step (5)~(7) are repeated in, after the sieve plate one plate string of composition for placing setting quantity, use spiral shell at the top of pull rod
Bolt fastening, completes its fixation between the sieve plate of the top；
(9) after the completion of step (8), fixed block is packed into central post top portion, central post top portion is fixed on fixed block
On distribution grid, prevent plate string from shaking and vibrating up and down under impulse action.
Claims (3)
1. a kind of pulsed sieve-plate column sieve plate fixing means is applied in uranium purifying production in abstraction purification technique, pulsed sieve-plate column
Middle water phase enters from capital, passes through sieve plate by self gravity and mutually exports outflow from column bottom water, organic phase from column bottom organic phase into
Mouth enters, and by the effect of buoyancy and impulsive force, enters capital by sieve plate hole and flows out from organic phase outlet；In two phase countercurrent flow
It comes into full contact in the process, realizes the exchange of matter, complete uranium and be stripped extract operation；
It is characterized in that：Include the following steps：
(1) main element is determined
The main element fixed for sieve-plate column sieve plate has center-pole, pull rod, center-pole distance sink tube and pull rod distance sink tube；
Realize that the transverse direction of sieve plate is fixed by center-pole；
The radially fixed of sieve plate is realized by pull rod；
It, will by equidistantly fixed mode by longitudinally fixed between center-pole distance sink tube and pull rod distance sink tube realization sieve plate
Sieve plate is fixed on plate string with identical longitudinal pitch；
Two are respectively set for 3/5ths radiuses and outermost annulus position along the distance apart from the sieve plate center of circle on every piece of sieve plate
Enclose aperture, 8 apertures be uniformly arranged on every circle annulus, on two circle annulus aperture with the sieve plate center of circle on the same line；
(2) head is sealed up in center-pole bottom, this end socket is contacted with the lower distribution grid as plate string bearing equipment, is entire plate string
Supporting surface；
First piece of sieve plate is inserted on center-pole；
(3) between two pull rods adjacent in the corresponding each position of opening placement pull rod of first piece of sieve plate, same annulus
Angle of circumference is 45° angle；
(4) pull rod is fixed by plug and nut in pull rod bottom, fixes it with first piece of sieve plate；
(5) center-pole distance sink tube is inserted on center-pole；
(6) pull rod distance sink tube is inserted on every pull rod respectively；
(7) after completing step (6), it is put into second piece of sieve plate；
(8) step (5)~(7) are repeated in, it is tight with bolt at the top of pull rod after the sieve plate one plate string of composition for placing setting quantity
Gu completing its fixation between the sieve plate of the top；
(9) after the completion of step (8), fixed block is packed into central post top portion, central post top portion is fixed on upper distribution with fixed block
On plate, prevent plate string from shaking and vibrating up and down under impulse action.
2. a kind of pulsed sieve-plate column sieve plate fixing means as described in claim 1, it is characterised in that：Center-pole, pull rod, center
Bar distance sink tube and pull rod distance sink tube use the S30408 stainless steel of same material.
3. a kind of pulsed sieve-plate column sieve plate fixing means as described in claim 1, it is characterised in that：In step (6), center-pole
Distance sink tube is consistent with pull rod distance sink tube height, and control sieve plate is indeformable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235340.8A CN106702183B (en) | 2016-12-28 | 2016-12-28 | A kind of pulsed sieve-plate column sieve plate fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235340.8A CN106702183B (en) | 2016-12-28 | 2016-12-28 | A kind of pulsed sieve-plate column sieve plate fixing means |
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| Publication Number | Publication Date |
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| CN106702183A CN106702183A (en) | 2017-05-24 |
| CN106702183B true CN106702183B (en) | 2018-11-30 |
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| CN110292993A (en) * | 2019-06-04 | 2019-10-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of detachable media box framework and its assembly technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN86207618U (en) * | 1986-10-27 | 1987-12-09 | 清华大学 | Pipe array type pulse sieve-plate column extractor |
| JPS63266028A (en) * | 1987-04-23 | 1988-11-02 | Agency Of Ind Science & Technol | Seawater uranium extracting device utilizing oceanic current and wave power |
| CN205413610U (en) * | 2015-12-15 | 2016-08-03 | 天津威德矿业设备有限公司 | Sieve fixing device |
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