CN114712892A - Cyclone separation extraction tank - Google Patents
Cyclone separation extraction tank Download PDFInfo
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- CN114712892A CN114712892A CN202210463432.0A CN202210463432A CN114712892A CN 114712892 A CN114712892 A CN 114712892A CN 202210463432 A CN202210463432 A CN 202210463432A CN 114712892 A CN114712892 A CN 114712892A
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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
- B01D11/0446—Juxtaposition of mixers-settlers
- B01D11/0457—Juxtaposition of mixers-settlers comprising rotating mechanisms, e.g. mixers, mixing pumps
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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
- B01D11/0446—Juxtaposition of mixers-settlers
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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
- B01D11/0492—Applications, solvents used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a cyclone separation extraction tank, which belongs to a high-efficiency separation extraction device and consists of the following parts: a mixing chamber, a cyclone separation device and a clarification chamber. The organic phase and the water phase respectively enter a mixing chamber of the extraction tank from the top and the bottom of the mixing chamber, the mixed extraction process is completed under the action of mechanical stirring, the mixed liquid flows out of an overflow port at the top of the mixing chamber and enters a cyclone separation device, the intensified separation is realized through the cyclone effect and enters a clarification chamber, the complete separation is realized in the clarification chamber, and the separated water phase and the separated organic phase respectively enter a mixed extraction chamber of the previous stage and a mixed extraction chamber of the next stage to complete the countercurrent extraction process. According to the invention, the cyclone separation device is added on the basis of the traditional box-type extraction tank, so that the high-efficiency separation effect is realized, the volume ratio of the clarification chamber to the mixing chamber is reduced to 1-1.5: 1 from 3:1 of the traditional extraction tank, the problems of poor separation effect, large valuable component storage tank amount and the like in the extraction process caused by slow clarification speed are greatly reduced, and the high-efficiency extraction process is realized.
Description
Technical Field
The invention discloses a cyclone separation extraction tank, and particularly relates to a high-efficiency separation extraction device.
Background
The extraction separation technology is an impurity removal method for realizing separation by utilizing different solubilities of extracted elements between two phases, and is widely applied to the industries of hydrometallurgy, chemical engineering, petroleum and the like. According to the principle, the invention provides a mixing and clarifying extraction tank which has a simple structure and is convenient to operate, and becomes the most widely applied extraction and separation equipment at home and abroad. Raw material liquid and an extracting agent firstly enter a mixing chamber through respective feed inlets, are fully contacted and mixed under the action of a stirrer, then enter a clarifying chamber through an overflow baffle, and are finally separated according to different densities of two phases.
However, in the existing extraction process, the phenomena of low clarification rate, unobvious phase separation effect and mutual inclusion of a water phase and an organic phase after separation generally exist, which not only causes the loss of the organic phase, but also possibly brings adverse effects on subsequent operations. In order to ensure that the extraction process has higher clarification rate and the two phases have better separation effect, a plurality of different mixed clarification extraction tanks are designed at home and abroad from the aspects of improving the manufacturing materials and the internal structure of the clarification extraction tanks. As proposed by yangbo, "an extraction clarifier, application No.: CN 201120499593.2' sets up the spoiler at the entrance that the mixed phase got into the clarification chamber and strengthens the two-phase separation to this efficiency that improves organic phase and aqueous phase extraction separation, sets up a plurality of disperse phase swash plates in the clarification chamber in addition and separates it into a plurality of height inequality and the clarification room that arranges from top to bottom in proper order, reaches the purpose that improves the clarification efficiency through increasing the area of clarification chamber, but its extraction separation in-process need consume a large amount of clarification time, still waits to improve on production efficiency. In addition, "a high-efficiency extraction tank capable of improving extraction quality, which is proposed by Zhang Gan et al, application No.: CN202022065773.1 ", it is in order to further improve clarification effect, solves the relatively poor problem of extraction tank filterability, increases a clarification chamber and connects the filter head between two clarification chambers on original system, makes the solution through in the first clarification chamber enter into the second clarification chamber after through simple filtration, sets up the rose box in the second clarification chamber in addition, makes the water in the second clarification chamber can pass through multistage filtration to this improves clarification effect, and the water that final clarification is again discharged by the outlet pipe. Although the method greatly increases the clarification efficiency through additional mechanical assistance, the flexibility of the method is reduced again because the extraction tank originally occupies a larger area and a clarification chamber is added on the original basis.
Disclosure of Invention
The invention aims to provide a cyclone separation extraction tank to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a cyclone separation extraction tank which is characterized by comprising a mixing chamber, a cyclone separation device and a clarification chamber compared with a traditional box type mixing clarification tank. The mixing chamber is provided with an organic phase feed inlet at the top and a water phase feed inlet at the bottom, and a stirring shaft and stirring paddle blades are arranged in the center of the mixing chamber. The upper part of the clarifying chamber is provided with a clarifying chamber overflow weir and an organic phase outlet, and the lower part of the clarifying chamber is provided with a water phase outlet. The cyclone separation device is arranged in the clarification chamber, is assembled on a partition plate on one side of the mixing chamber and is communicated with the mixing chamber through an overflow port of the mixing chamber, the top of the cyclone separation device is a light phase outlet, the bottom of the cyclone separation device is a heavy phase outlet, and a cyclone separation overflow port is arranged in the cyclone separation device.
Preferably, the mixed solution is firstly mechanically stirred in the mixing chamber to complete primary mixing extraction, then flows into the cyclone separation device from the overflow port of the mixing chamber at the top of the mixing chamber, and is subjected to cyclone separation reinforcement, so that the purpose of reinforced separation is achieved, the separation effect is improved, the clarification rate is greatly improved, the organic phase in the clarified water phase is lower than 0.8%, and the water content in the organic phase is lower than 1%. In addition, the volume ratio of the clarifying chamber to the mixing chamber can be greatly reduced from 3:1 to 1-1.5: 1 of the traditional extraction tank. The method is implemented by the following scheme:
preferably, the organic phase and the aqueous phase enter the mixing chamber of the extraction tank through the organic phase feed inlet and the aqueous phase feed inlet of the mixing chamber, the stirring shaft and the stirring paddle blades are arranged in the mixing chamber, the organic phase and the aqueous phase complete the extraction process under the action of mechanical stirring, and the extracted mixed solution flows out from the overflow port of the mixing chamber at the top of the mixing chamber;
preferably, the mixed solution flows into the cyclone separation device from the overflow port of the mixing chamber, and under the action of cyclone, the organic phase and the water phase in the mixed solution further complete enhanced separation and then enter the clarifying chamber;
preferably, the mixed solution after cyclone separation is completely separated in the clarifying chamber, the separated upper organic phase enters the next-stage extraction mixing chamber, and the bottom aqueous phase enters the mixing chamber of the previous-stage extraction, so that the countercurrent extraction process is completed.
Compared with the prior art, the invention has the characteristics and beneficial effects that:
the invention takes the traditional box type mixing and clarifying extraction tank as a prototype, and overcomes the defects of slow clarification speed and low efficiency in the clarification tank only by the gravity of mixed liquor in the traditional mode by adding the cyclone separation device. After the water phase and the organic phase are mixed and extracted by mechanical stirring in the mixing chamber, the mixture overflows from the top and flows into a cyclone separation device, so that the intensified separation is realized, the extraction clarification efficiency is greatly improved, the efficiency of the whole extraction process is improved, and particularly, the separation effect of the organic phase and the water phase is improved;
the mixed solution after cyclone separation is completely separated in a clarifying chamber, the water content of the organic phase after separation is lower than 1 percent, and the organic phase in the water phase is lower than 0.8 percent;
after the process is optimized, the volume of the clarifying tank is greatly reduced, and the volume ratio of the clarifying chamber to the mixing chamber can be reduced to 1-1.5: 1 from 3:1 of the traditional extraction tank.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a sectional view taken along line A-A of a cyclonic separation and extraction tank of the present invention;
FIG. 2 is a top view of a cyclonic separation and extraction tank of the present invention;
wherein, 1 is a water phase feed inlet, 2 is a mixing chamber, 3 is a stirring paddle blade, 4 is a stirring shaft, 5 is an organic phase feed inlet, 6 is a mixing chamber overflow port, 7 is a cyclone separation device, 8 is a cyclone separation overflow port, 9 is a light phase outlet, 10 is a clarification chamber, 11 is a clarification chamber overflow weir, 12 is an organic phase outlet, 13 is a heavy phase outlet, and 14 is a water phase outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-2, the invention discloses a cyclone separation extraction tank, which comprises a mixing chamber 2, a cyclone separation device 7 and a clarification chamber 10. An organic phase feed inlet 5 is formed in the top of the mixing chamber 2, a water phase feed inlet 1 is formed in the bottom of the mixing chamber 2, and a stirring shaft 4 and stirring paddle blades 3 are arranged in the center of the mixing chamber 2. The upper part of the clarifying chamber 10 is provided with a clarifying chamber overflow weir 11 and an organic phase outlet 12, and the lower part is provided with a water phase outlet 14. The cyclone separation device 7 is arranged in the clarification chamber 10, is assembled on a partition plate on one side of the mixing chamber 2 and is communicated with the mixing chamber 2 through a mixing chamber overflow port 6, the top of the cyclone separation device 7 is provided with a light phase outlet 9, the bottom of the cyclone separation device is provided with a heavy phase outlet 13, and a cyclone separation overflow port 8 is arranged in the cyclone separation device.
When the extraction process is carried out by adopting the cyclone separation extraction tank, an organic phase and a water phase respectively enter a mixing chamber 2 of the extraction tank from an organic phase feed inlet 5 and a water phase feed inlet 1 of the mixing chamber 2, a stirring shaft 4 and stirring paddle blades 3 are arranged in the mixing chamber 2, the mixing extraction process is completed under the action of mechanical stirring, a mixed solution flows out from a mixing chamber overflow port 6 at the top of the mixing chamber 2 and then enters a cyclone separation device 7, the enhanced separation is realized under the action of cyclone, a light phase and a heavy phase respectively enter a clarification chamber from a light phase outlet 9 and a heavy phase outlet 13, the mixed solution subjected to cyclone separation is completely separated in the clarification chamber 10, the organic phase at the upper part after separation enters a next-stage extraction mixing chamber, and the water phase at the bottom part enters a previous-stage extraction mixing chamber, so that the countercurrent extraction process is completed.
The technical solution of the present invention is further illustrated by the following specific examples.
Example 1
Preparing 40% volume fraction P204 and 60% volume fraction 260# solvent oil as extraction organic phase, introducing fly ash sulfuric acid immersion liquid as water phase into the mixing chamber of the extraction tank from the top and the bottom of the mixing chamber respectively, wherein the volume ratio of the mixing chamber to the clarifying chamber is 1:1, the width of the mixing chamber is 150mm, the width of the clarifying chamber is 150mm, a mechanical stirring device is arranged in the mixing chamber, an overflow port is arranged at the top of the mixing chamber, and the organic phase and the water phase are mechanically stirred in the mixing chamber at the rotating speed of 200rpm for 10min and then introduced into a cyclone separator from the overflow port at the top of the mixing chamber.
And (3) finishing the enhanced separation of the extracted organic phase and the extracted water phase under the condition of rotational flow stirring, then introducing the organic phase and the water phase into a clarification chamber to finish the final separation in the clarification chamber, wherein the clarification time of the water phase and the organic phase is measured to be 2min, the water content of the organic phase is 0.6%, the organic phase included in the water phase is 0.55%, and the efficiency is improved by more than 50%. The top of the clarifying chamber is provided with an organic phase outlet, the bottom of the clarifying chamber is provided with a water phase outlet, the clarified organic phase can enter the next-stage mixing chamber through the top organic phase outlet, and the water phase can enter the previous-stage mixing chamber through the water phase outlet at the bottom of the clarifying chamber, so that the countercurrent extraction process is further completed.
Example 2
Preparing 40% volume fraction P204 and 60% volume fraction 260# solvent oil as extraction organic phase, introducing fly ash sulfuric acid immersion liquid as water phase into the mixing chamber of the extraction tank from the top and the bottom of the mixing chamber respectively, wherein the volume ratio of the mixing chamber to the clarifying chamber is 1:1.2, the width of the mixing chamber is 150mm, the width of the clarifying chamber is 180mm, a mechanical stirring device is arranged in the mixing chamber, an overflow port is arranged at the top of the mixing chamber, and after the organic phase and the water phase are mechanically stirred in the mixing chamber at the rotating speed of 200rpm for 10min, the organic phase and the water phase are introduced into a cyclone separator from the overflow port at the top of the mixing chamber.
And (3) finishing the enhanced separation of the extracted organic phase and the extracted water phase under the condition of rotational flow stirring, then introducing the organic phase and the water phase into a clarification chamber to finish the final separation in the clarification chamber, wherein the clarification time of the water phase and the organic phase is measured to be 2min, the water content of the organic phase is 0.75%, the organic phase included in the water phase is 0.63%, and the efficiency is improved by more than 50%. The top of the clarifying chamber is provided with an organic phase outlet, the bottom of the clarifying chamber is provided with a water phase outlet, the clarified organic phase can enter the next-stage mixing chamber through the top organic phase outlet, and the water phase can enter the previous-stage mixing chamber through the water phase outlet at the bottom of the clarifying chamber, so that the countercurrent extraction process is further completed.
Example 3
Preparing 40% of P204 and 60% of No. 260 solvent oil as extraction organic phase, introducing fly ash sulfuric acid immersion liquid as water phase into an extraction tank mixing chamber from the top and the bottom of the mixing chamber respectively, wherein the volume ratio of the mixing chamber to a clarifying chamber is 1:1.4, the width of the mixing chamber is 150mm, the width of the clarifying chamber is 210mm, a mechanical stirring device is arranged in the mixing chamber, an overflow port is arranged at the top of the mixing chamber, and after the organic phase and the water phase are mechanically stirred in the mixing chamber at the rotating speed of 200rpm for 10min, the organic phase and the water phase are introduced into a cyclone separator from the overflow port at the top of the mixing chamber.
And (3) finishing the enhanced separation of the extracted organic phase and the extracted water phase under the condition of rotational flow stirring, then introducing the organic phase and the water phase into a clarification chamber to finish the final separation in the clarification chamber, wherein the clarification time of the water phase and the organic phase is measured to be 2min, the water content of the organic phase is 0.8%, the organic phase included in the water phase is 0.69%, and the efficiency is improved by over 50%. The top of the clarifying chamber is provided with an organic phase outlet, the bottom of the clarifying chamber is provided with a water phase outlet, the clarified organic phase can enter the next-stage mixing chamber through the top organic phase outlet, and the water phase can enter the previous-stage mixing chamber through the water phase outlet at the bottom of the clarifying chamber, so that the countercurrent extraction process is further completed.
Example 4
Preparing 40% of P204 and 60% of No. 260 solvent oil as extraction organic phase, introducing fly ash sulfuric acid immersion liquid as water phase into an extraction tank mixing chamber from the top and the bottom of the mixing chamber respectively, wherein the volume ratio of the mixing chamber to a clarifying chamber is 1:1.5, the width of the mixing chamber is 150mm, the width of the clarifying chamber is 225mm, a mechanical stirring device is arranged in the mixing chamber, an overflow port is arranged at the top of the mixing chamber, and after the organic phase and the water phase are mechanically stirred in the mixing chamber at the rotating speed of 200rpm for 10min, the organic phase and the water phase are introduced into a cyclone separator from the overflow port at the top of the mixing chamber.
The organic phase and the water phase after extraction are subjected to enhanced separation under the condition of rotational flow stirring, and then are introduced into a clarification chamber to be subjected to final separation in the clarification chamber, wherein the clarification time of the water phase and the organic phase is measured to be 2min, the water content of the organic phase is 0.92%, the organic phase included in the water phase is 0.75%, and the efficiency is improved by more than 50%. The top of the clarifying chamber is provided with an organic phase outlet, the bottom of the clarifying chamber is provided with a water phase outlet, the clarified organic phase can enter the next-stage mixing chamber through the top organic phase outlet, and the water phase can enter the previous-stage mixing chamber through the water phase outlet at the bottom of the clarifying chamber, so that the countercurrent extraction process is further completed.
Example 5
Preparing 40% of P204 and 60% of No. 260 solvent oil as extraction organic phase, introducing fly ash sulfuric acid immersion liquid as water phase into an extraction tank mixing chamber from the top and the bottom of the mixing chamber respectively, wherein the volume ratio of the mixing chamber to a clarifying chamber is 1:1.5, the width of the mixing chamber is 150mm, the width of the clarifying chamber is 225mm, a mechanical stirring device is arranged in the mixing chamber, an overflow port is arranged at the top of the mixing chamber, and after the organic phase and the water phase are mechanically stirred in the mixing chamber at the rotating speed of 200rpm for 10min, the organic phase and the water phase are introduced into a cyclone separator from the overflow port at the top of the mixing chamber.
And (3) finishing the enhanced separation of the extracted organic phase and the extracted water phase under the condition of rotational flow stirring, then introducing the organic phase and the water phase into a clarification chamber to finish the final separation in the clarification chamber, wherein the clarification time of the water phase and the organic phase is measured to be 2min, the water content of the organic phase is 0.95%, the organic phase included in the water phase is 0.7%, and the efficiency is improved by more than 50%. The top of the clarifying chamber is provided with an organic phase outlet, the bottom of the clarifying chamber is provided with a water phase outlet, the clarified organic phase can enter the next-stage mixing chamber through the top organic phase outlet, and the water phase can enter the previous-stage mixing chamber through the water phase outlet at the bottom of the clarifying chamber, so that the countercurrent extraction process is further completed.
In the description, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (3)
1. A cyclone separation extraction tank is characterized in that: including mixing chamber (2), cyclone (7) and clarification chamber (10), organic phase feed inlet (5) have been seted up at mixing chamber (2) top, and aqueous phase feed inlet (1) have been seted up to the bottom, mixing chamber (2) central authorities are equipped with (mixing) shaft (4) and stirring rake blade (3), clarification chamber (10) upper portion is equipped with clarification chamber overflow weir (11) and organic phase export (12), and aqueous phase export (14) have been seted up to the lower part, cyclone (7) are in inside clarification chamber (10), the assembly is in on the baffle of mixing chamber (2) one side to through mixing chamber overflow mouth (6) with mixing chamber (2) intercommunication, cyclone (7) top is light phase export (9), and the bottom is heavy phase export (13), and inside has cyclone (8).
2. The cyclonic separation and extraction cell of claim 1, wherein: the organic phase and the aqueous phase respectively enter the mixing chamber (2) of the extraction tank from an organic phase feed inlet (5) and an aqueous phase feed inlet (1) of the mixing chamber (2), the mixing and extraction process is completed under the mechanical stirring action of the stirring shaft (4) and the stirring paddle blades (3), and the mixed solution flows out from an overflow port (6) of the mixing chamber at the top of the mixing chamber (2); the mixed liquor enters a cyclone separation device (7) from an overflow port (6) of the mixing chamber, is subjected to cyclone effect to realize enhanced separation and enters the clarifying chamber (10); the mixed liquid after cyclone separation is completely separated in the clarifying chamber (10), the organic phase at the upper part enters the next stage of extraction mixing chamber after separation, and the water phase at the bottom enters the mixing chamber of the previous stage of extraction, so that the countercurrent extraction process is completed.
3. The cyclonic separation and extraction cell of claim 1, wherein: the clarification rate is greatly improved by cyclone separation reinforcement, the volume ratio of the clarification chamber (10) to the mixing chamber (2) is reduced to 1-1.5: 1 from 3:1 of a traditional extraction tank, after clarification, the water content of an organic phase is lower than 1%, and the organic phase in a water phase is lower than 0.8%.
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2022
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| GB8706251D0 (en) * | 1987-03-17 | 1987-04-23 | Atomic Energy Authority Uk | Fluid-fluid contacting apparatus |
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