CN114100193A - High-efficient clarification disconnect-type extraction device that mixes - Google Patents
High-efficient clarification disconnect-type extraction device that mixes Download PDFInfo
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- CN114100193A CN114100193A CN202111310484.6A CN202111310484A CN114100193A CN 114100193 A CN114100193 A CN 114100193A CN 202111310484 A CN202111310484 A CN 202111310484A CN 114100193 A CN114100193 A CN 114100193A
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- 238000000605 extraction Methods 0.000 title claims abstract description 71
- 238000005352 clarification Methods 0.000 title claims description 54
- 238000002156 mixing Methods 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 22
- 239000004801 Chlorinated PVC Substances 0.000 claims description 4
- 210000005056 cell body Anatomy 0.000 claims description 4
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 239000012071 phase Substances 0.000 abstract description 22
- 239000012074 organic phase Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009854 hydrometallurgy Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005191 phase separation Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Classifications
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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
- B01D11/0449—Juxtaposition of mixers-settlers with stationary contacting elements
-
- 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
-
- 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
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a high-efficiency mixing, clarifying and separating type extraction device, which relates to the technical field of hydrometallurgy and solves the technical problems that a mixing chamber and a clarifying tank of a traditional extraction tank are integrated, the mixing chamber is of a submerged chamber structure, water phase and organic phase enter the submerged chamber and enter the mixing chamber under the action of suction force formed by a disc turbine stirrer, the diameter of the stirrer is small, the stirring speed is high, the shearing force is large, partial liquid drops are cut too finely and are not beneficial to phase separation, the high-efficiency mixing, clarifying and separating type extraction device comprises a primary mixing tank, a secondary mixing tank and an extraction clarifying tank, wherein the secondary mixing tank is connected to the right side of the primary mixing tank through an outlet pipe a, and the extraction clarifying tank is connected to the right side of the secondary mixing tank through an outlet pipe b. The invention ensures the mixing effect and extraction efficiency of the organic phase and the water phase; can produce high-quality raffinate with oil content less than 10 PPM; the sealing structure can prevent organic oxidation, ventilation is favorable for organic recovery, and organic loss is reduced; the operation is safe and reliable.
Description
Technical Field
The invention relates to the technical field of wet metallurgy, in particular to the technical field of a high-efficiency mixing, clarifying and separating type extraction device.
Background
In the nickel-cobalt hydrometallurgy industry, chemical precipitation, extraction, ion exchange, etc. are commonly used as the solution purification method. Extraction methods are methods which utilize the difference in solubility or partition coefficient of a substance in two immiscible solvents to transfer the substance from one solvent to the other.
Traditional extraction box mixing chamber and clarification tank are as an organic whole, and the mixing chamber is latent room structure, and aqueous phase and organic phase get into latent room, get into the mixing chamber under the draft effect that disc turbine agitator formed, have the agitator diameter little, and stirring speed is fast and the shearing force is big, causes the problem that local liquid drop cutting is too thin to be unfavorable for the phase splitting.
Disclosure of Invention
The invention aims to provide a high-efficiency mixing, clarifying and separating type extraction device, which enables dispersed phases to have good mixing and separating characteristics and low entrainment through a secondary mixing and double helical ribbon type stirrer and low rotating speed and shearing force; the special oil separation plate enables the dispersed phase to only pass through the lower part and the longitudinal seam, and improves the extraction efficiency, the clarification rate and the oil-water separation effect. To solve the problems set forth in the background art.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a high-efficient clarification disconnect-type extraction device that mixes, includes one-level mixing tank 1, secondary mixing tank 2 and extraction clarification case 3, secondary mixing tank 2 is connected in 1 right side of one-level mixing tank through outlet pipe a4, extraction clarification case 3 is connected on 2 right sides of secondary mixing tank through outlet pipe b5, one-level mixing tank 1 and secondary mixing tank 2 all include capping, cell body and agitating unit, extraction clarification case 3 is including the box that has the case lid and a plurality of oil removal board of setting in the box.
The stirring device of the primary mixing tank 1 is a disc turbine stirrer 6, the stirring device of the secondary mixing tank 2 is a double-helical-belt stirrer 7, and the disc turbine stirrer 6 and the double-helical-belt stirrer 7 are both rotating speed variable-frequency speed regulation.
A water phase inlet 8 and an organic inlet 9 are arranged on the tank cover of the first-stage mixing tank 1.
The inlet of the outlet pipe a4 is arranged at the bottom of the primary mixing tank 1, the outlet of the outlet pipe a4 is arranged at the lower part of the secondary mixing tank 2, the inlet of the outlet pipe b5 is arranged at the middle part of the secondary mixing tank 2, and the outlet of the outlet pipe b5 is arranged at the upper left part of the extraction and clarification tank 3.
The outlet pipe b5 is provided with a screw regulator 21, and the flow rate of the dispersed phase in the outlet pipe b5 is controlled by rotating the screw regulator 21.
Be provided with vent 20 on the case lid of extraction clarification case 3, the inside left side of extraction clarification case 3 is provided with overflow plate 10, and the inside overflow plate 10 right side department of extraction clarification case 3 has from left to right set gradually oil removal board a11, oil removal board b12, oil removal board c13, and the inside right-hand member of extraction clarification case 3 is provided with overflow weir 14, and 14 tops of overflow weir are provided with viewing aperture 15, and 14 bottoms of overflow weir set up organic export 16, and 3 right-hand member bottoms of extraction clarification case are provided with aqueous phase export 17.
Oil removal board a11, oil removal board b12 and oil removal board c13 are CPVC and separate the sieve, all set up the vertical bar seam of interval 20mm on every oil removal board, oil removal board a11, oil removal board b12, oil removal board c 13's height is 80%, 60%, 50% of extraction clarification 3 box height respectively, three oil removal board all vertical welding is in extraction clarification 3 box, leaves the opening between the upper and lower both sides of every oil removal board and extraction clarification 3 box.
The bottom of the extraction clarification tank 3 is provided with a support frame 18, and the upper rear side of the support frame 18 is provided with a handrail 19.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the disc turbine stirrer and the double-helical ribbon stirrer are arranged for secondary mixing, and the dispersed phase has good mixing and separating characteristics and low entrainment due to low rotating speed and low shearing force; the oil separation plate specially arranged enables the dispersed phase to pass through only from the lower part and the longitudinal seam, so that the extraction efficiency, the clarification rate and the oil-water separation effect are improved;
2. the overflow plate, the overflow weir and the oil separation plate are arranged in the extraction clarification tank, so that the dispersed phase entering the extraction clarification tank passes through the overflow plate and the three oil separation plates with the upper opening and the lower opening, the water phase is thoroughly separated from the organic phase while the metal solution is separated and purified, and the water phase is further separated when the organic phase turns over the overflow weir, so that the organic phase flows out from the organic outlet;
3. the box cover and the box body of the extraction clarifying box are tightly sealed, so that air is prevented from entering the box, organic oxidation is promoted, organic waste gas is extracted from the ventilation opening, and small air volume and low negative pressure are controlled. The ventilation adopts micro negative pressure and small flow, and the ventilation pipeline inclines downwards towards the ventilation opening, so that air can be prevented from entering the box to oxidize the organic substances, and the condensed organic substances flow back to the clarifying box for continuous use, thereby avoiding organic loss and recovering the organic substances in the waste gas;
in conclusion, the invention ensures the mixing effect and extraction efficiency of the organic phase and the water phase; can produce high-quality raffinate with oil content less than 10 PPM; the sealing structure can prevent organic oxidation, ventilation is favorable for organic recovery, and organic loss is reduced; the operation is safe and reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
shown in the figure: a primary mixing tank 1; a secondary mixing tank 2; an extraction clarification tank 3; outlet pipe a 4; outlet pipe b 5; a disc turbine agitator 6; a double helical ribbon agitator 7; a water phase inlet 8; an organic inlet 9; an overflow plate 10; oil level a 11; oil interceptor b 12; oil barriers c 13; a weir 14; a viewing port 15; an organic outlet 16; an aqueous phase outlet 17; a support frame 18; a balustrade handrail 19; a vent 20; a threaded adjuster 21.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It is to be understood that the terms "left", "right", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Examples
As shown in fig. 1, the embodiment provides a high-efficiency mixing, clarifying and separating type extraction apparatus, which comprises a primary mixing tank 1, a secondary mixing tank 2 and an extraction and clarification tank 3, wherein the extraction and clarification tank is made of CPVC material, the secondary mixing tank 2 is connected to the right side of the primary mixing tank 1 through an outlet pipe a4, the extraction and clarification tank 3 is connected to the right side of the secondary mixing tank 2 through an outlet pipe b5, an inlet of the outlet pipe a4 is arranged at the bottom of the primary mixing tank 1, an outlet of the outlet pipe a4 is arranged at the lower part of the secondary mixing tank 2, an inlet of the outlet pipe b5 is arranged at the middle part of the secondary mixing tank 2, an outlet of the outlet pipe b5 is arranged at the upper part of the left side of the extraction and clarification tank 3, a thread regulator 21, internal threads of the pipeline, external threads of the regulator are mounted on an outlet pipe b5, and the flow rate of the dispersed phase in the outlet pipe b5 is controlled by rotating the height of the thread regulator 21; one-level mixing tank 1 and secondary mixing tank 2 all include capping, cell body and agitating unit, and capping, cell body and mouth of pipe are steel lining tetrafluoro material, and agitating unit is steel lining tetrafluoro material, extraction clarification tank 3 is including the box that has the case lid and the three kinds of oil interceptors of setting in the box.
The stirring device of the first-stage mixing tank 1 is a disc turbine stirrer 6, the stirring device of the secondary mixing tank 2 is a double-helical-ribbon stirrer 7, and the disc turbine stirrer 6 and the double-helical-ribbon stirrer 7 are both rotating speed variable-frequency speed regulation. The cover of the first-stage mixing tank 1 is provided with a water phase inlet 8 and an organic inlet 9.
Be provided with vent 20 on the case lid of extraction clarification case 3, the inside left side of extraction clarification case 3 is provided with overflow plate 10, the inside overflow plate 10 right side department of extraction clarification case 3 has from left to right set gradually oil removal plate a11, oil removal plate b12, oil removal plate c13, the inside right-hand member of extraction clarification case 3 is provided with overflow weir 14, overflow weir 14 top is provided with viewing aperture 15, overflow weir 14 bottom sets up organic export 16, extraction clarification case 3 right-hand member bottom is provided with aqueous phase export 17. The dispersion phase entering the extraction clarification tank passes through the overflow plate, the oil separation plate a, the oil separation plate b and the oil separation plate c, so that the water phase and the organic phase are thoroughly separated while the metal solution is separated and purified. When the organic phase turns over the overflow weir, the water phase is further separated, the organic phase flows out from the organic outlet, and the separated water phase flows out from the water phase outlet at the lower part of the extraction tank.
The box cover and the box body of the extraction clarification box 3 are tightly sealed, the ventilation adopts micro negative pressure and small flow, air is prevented from entering the box to promote organic oxidation, organic waste gas is pumped out from the ventilation opening, the small air quantity and low negative pressure are controlled, the ventilation pipeline inclines downwards towards the ventilation opening, the air can be prevented from entering the box to cause organic oxidation, the condensed organic gas flows back to the clarification box to be continuously used, organic loss is avoided, and the organic gas in the waste gas can be recovered.
The oil separation plate a11, the oil separation plate b12 and the oil separation plate c13 are CPVC sieve separation plates, longitudinal strip-shaped seams with the interval of 20mm are arranged on each oil separation plate, the heights of the oil separation plate a11, the oil separation plate b12 and the oil separation plate c13 are 80%, 60% and 50% of the height of the extraction and clarification tank 3, each oil separation plate is vertically welded in the extraction and clarification tank 3, and an opening is reserved between the upper side and the lower side of each oil separation plate and the extraction and clarification tank 3.
The bottom of the extraction clarification tank 3 is provided with a steel support frame 18, and the rear side of the support frame 18 is provided with a handrail 19. The steel support frame 18 and the handrail 19 ensure the safe operation of the staff.
The invention ensures the mixing effect and extraction efficiency of the organic phase and the water phase; can produce high-quality raffinate with oil content less than 10 PPM; the sealing structure can prevent organic oxidation, ventilation is favorable for organic recovery, and organic loss is reduced; the operation is safe and reliable.
Claims (8)
1. The utility model provides a high-efficient clarification disconnect-type extraction device that mixes, includes one-level mixing tank (1), secondary mixing tank (2) and extraction clarification case (3), its characterized in that: secondary mixing tank (2) are connected on one-level mixing tank (1) right side through outlet pipe a (4), extraction clarification tank (3) are connected on secondary mixing tank (2) right side through outlet pipe b (5), one-level mixing tank (1) and secondary mixing tank (2) all include capping, cell body and agitating unit, extraction clarification tank (3) are including the box that has the case lid and setting a plurality of kinds of oil removal board in the box.
2. An efficient mixer-settler extractor as claimed in claim 1, wherein: the stirring device of the first-stage mixing tank (1) is a disc turbine stirrer (6), the stirring device of the secondary mixing tank (2) is a double-helical-ribbon stirrer (7), and the disc turbine stirrer (6) and the double-helical-ribbon stirrer (7) are both variable-frequency speed regulation at rotating speeds.
3. An efficient mixer-settler extractor as claimed in claim 1, wherein: and a water phase inlet (8) and an organic inlet (9) are arranged on a tank cover of the primary mixing tank (1).
4. An efficient mixer-settler extractor as claimed in claim 1, wherein: the inlet of the outlet pipe a (4) is arranged at the bottom of the primary mixing tank (1), the outlet of the outlet pipe a (4) is arranged at the lower part of the secondary mixing tank (2), the inlet of the outlet pipe b (5) is arranged in the middle of the secondary mixing tank (2), and the outlet of the outlet pipe b (5) is arranged at the upper part of the left side of the extraction clarification tank (3).
5. An extraction apparatus of high efficiency mixing, clarifying and separating type as set forth in claim 4, wherein: and a thread regulator (21) is arranged on the outlet pipe b (5), and the flow rate of the dispersed phase in the outlet pipe b (5) is controlled by rotating the height of the thread regulator (21).
6. An extraction apparatus of high efficiency mixing, clarifying and separating type as set forth in claim 5, wherein: the extraction clarification tank is characterized in that a ventilation opening (20) is formed in a tank cover of the extraction clarification tank (3), an overflow plate (10) is arranged on the left side of the inner portion of the extraction clarification tank (3), an oil separation plate a (11), an oil separation plate b (12) and an oil separation plate c (13) are sequentially arranged on the right side of the overflow plate (10) in the extraction clarification tank (3), an overflow weir (14) is arranged at the right end of the inner portion of the extraction clarification tank (3), an observation opening (15) is arranged above the overflow weir (14), an organic outlet (16) is arranged at the bottom of the overflow weir (14), and a water phase outlet (17) is arranged at the bottom of the right end of the extraction clarification tank (3).
7. An extraction apparatus of high efficiency mixing, clarifying and separating type as claimed in claim 6, wherein: oil removal board a (11), oil removal board b (12) and oil removal board c (13) are CPVC and separate the sieve, all set up interval 20 mm's vertical bar seam on every oil removal board, oil removal board a (11), oil removal board b (12), the height of oil removal board c (13) is for extracting 80%, 60%, 50% of clarification tank (3) box height respectively, the equal vertical welding of three oil removal board is in extraction clarification tank (3) box, leave the opening between both sides and extraction clarification tank (3) box about every oil removal board.
8. An extraction apparatus of high efficiency mixing, clarifying and separating type as claimed in claim 7, wherein: the extraction clarification tank (3) bottom is provided with support frame (18), the rear side is provided with railing (19) on support frame (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310484.6A CN114100193A (en) | 2021-11-05 | 2021-11-05 | High-efficient clarification disconnect-type extraction device that mixes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310484.6A CN114100193A (en) | 2021-11-05 | 2021-11-05 | High-efficient clarification disconnect-type extraction device that mixes |
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| CN114100193A true CN114100193A (en) | 2022-03-01 |
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| CN202111310484.6A Pending CN114100193A (en) | 2021-11-05 | 2021-11-05 | High-efficient clarification disconnect-type extraction device that mixes |
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