WO2012069703A1 - Pump - Google Patents
Pump Download PDFInfo
- Publication number
- WO2012069703A1 WO2012069703A1 PCT/FI2011/051035 FI2011051035W WO2012069703A1 WO 2012069703 A1 WO2012069703 A1 WO 2012069703A1 FI 2011051035 W FI2011051035 W FI 2011051035W WO 2012069703 A1 WO2012069703 A1 WO 2012069703A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade wheel
- pump
- dispersion
- wheel housing
- suction tank
- Prior art date
Links
- 239000006185 dispersion Substances 0.000 claims abstract description 28
- 239000007791 liquid phase Substances 0.000 claims abstract description 10
- 238000000638 solvent extraction Methods 0.000 claims abstract description 7
- 239000012071 phase Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/41—Emulsifying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/60—Pump mixers, i.e. mixing within a pump
-
- 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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
-
- 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
Definitions
- the invention relates to the pump defined in the preamble to claim 1.
- a pump mixer is known in the prior art e.g. in publication US 5662871 (the Dispersion Overflow Pump, DOP®) , with which two or more mutually insoluble liquid phases are mixed with each other into a dispersion.
- the pump feeds the dispersion via one or several mixers into a solvent extraction settler.
- This kind of pump includes a suction tank comprising a bottom, which limits the internal space of the suction tank in the downward direction.
- the suction tank further includes a cylindrical vertical sidewall, which limits the internal space of the suction tank in the lateral direction. There is an opening for the first inlet channel in the sidewall, through which the first liquid phase is fed into the suction tank, and for the second inlet channel, through which the second liquid phase is fed into the suction tank.
- the blade wheel housing is open at the top.
- the upper part of the blade wheel housing sidewall opens conically upwards so that the upper rim of the sidewall forms an "overflow" rim, over which the dispersion is discharged into the space surrounding the blade wheel housing.
- the suction tank and pump section are surrounded by an outer tank, which receives the dispersion discharging from the blade wheel housing into the space between the suction tank and the outer tank.
- the mixing power is kept at a level at which the phases remain mixed.
- the remainder of the kinetic energy is changed into potential energy, with the purpose of moving the dispersion forwards via the discharge channel opening in the sidewall of the outer tank to the mixers and from there on to the solvent extraction settlers.
- This type of DOP pump construction of the prior art acts as an excellent dispersion former.
- the DOP pump construction of the prior art creates some problems.
- the size of the DOP pump will be large.
- the diameter of the outer tank that is required which determines the physical size of the equipment, may be as much as the order of 6 - 7 m and the height over 4 m.
- the physical size of the equipment is therefore huge and causes large investment costs.
- the space for liquid between the outer tank and the suction tank increases the physical size of the equipment, increases the investment costs of the equipment and technically in terms of the process makes it difficult to dimension (dispersion residence time) .
- the phases have to be over-mixed in the pump section. This increases the formation of small droplets in the pump that are hard to separate, and raises the power consumption of the DOP unit.
- a large unit and especially a large outer tank raise transportation costs and hamper transport, particularly for instance in mountain regions and in Africa, where the dimensions of the outer tank often exceed the permitted transportation dimensions.
- the drive motor is located a long way from the blade wheel, a long drive shaft is required. A long shaft will bend particularly in large production units and cause vibration in the blade wheel. Bending of the shaft hampers the mechanical dimensioning of the shaft and blade wheel .
- the purpose of the invention is to eliminate the above-mentioned drawbacks.
- the purpose of the invention is to disclose a pump, which is considerably smaller in physical size and cheaper in price than earlier.
- a further purpose of the invention is to disclose a pump, which enables the dimensioning of the pump so as to be transportable by ordinary means of transportation without requiring special transportation, and where the pump transportation costs are reasonable.
- a further purpose of the invention is to disclose a pump where there is no need for a large empty space nor an outer tank, and whose liquid volume is thus as small as possible.
- a further purpose of the invention is to disclose a pump where the dispersion residence time is as small as possible.
- a further purpose of the invention is to disclose a pump, whose power consumption is smaller than earlier.
- the inner space of the blade wheel housing is limited in the upward di ⁇ rection by a cover plate, in which there is a central shaft bushing for the drive shaft sealed with a me ⁇ chanical shaft seal.
- the discharge channel opening is in the sidewall of the blade wheel housing.
- the pump is always full of liquid. There is no empty space inside the equipment nor is it needed. Thus there is no need for the expensive and troublesome butterfly valve intended for liquid level control of the current DOP pump.
- the liquid volume of the pump is small i.e. the mixer residence time dimensioning will be accurate and easy to calculate.
- a small-sized pump unit can be transported easily as a whole to the site, for instance by normal road transport.
- Several pumps with the new construction can be transported in the same transportation, whereas the current units require individual transportation pallets .
- the blade wheel drive shaft is short, so it does not vibrate, which facilitates the dimensioning of the shaft and blade wheel and enhances mechanical durability.
- the opening of the discharge channel in the sidewall of the blade wheel housing is tangential.
- the drive includes a motor . In some embodiments of the pump, the drive includes a gear, which is arranged between the motor and the drive shaft .
- the output is in the order of magnitude of 50 - 10 000 m3/h
- the peripheral speed of the blade wheel is of the order of magnitude of 5 m/s
- the overpressure of the dispersion in the discharge channel is of the order of magnitude of 5 - 50 kPa.
- This overpressure causes the majority of the hydrostatic pressure in the mixer that comes after the pump.
- the overpressure required for the dispersion to flow from the pump is 3 - 8 kPa.
- Figure 1 presents a diagram of one arrangement equipped with one embodiment of the pump accordant with the invention
- Figure 2 presents a diagram of a cross-section of one embodiment of the pump accordant with the invention.
- Figure 1 presents a diagram of an arrangement consisting of pump 1, two mixers 2 and solvent extraction settler 3. There may be a different number of mixers than two. Two or more liquid phases that are insoluble in each other are mixed together into a dispersion in pump 1. Pump 1 feeds the dispersion to mixer 2, from where it is routed on to the second mixer 2 and from there on via rise channel 24 to solvent extraction settler 3.
- the phases to be mixed into a dispersion in the arrangement may be for instance water and an organic solution.
- the extraction reaction transfers for example metals from one phase to the other.
- the phases are separated from each other in settler 3.
- Pump 1 includes suction tank 4.
- the inner space of suction tank 4 is bounded by bottom 5 in the downward direction.
- the inner space of suction tank 4 is bounded by cylindrical, vertical sidewall 6 in the lateral direction.
- the inner space of suction tank 4 is bounded by upper wall 9 in the upward direction.
- Sidewall 6 of suction tank 4 has an opening for first inlet channel 7 through which the first liquid phase is fed into the suction tank, and an opening for the second inlet channel 8, through which the second liquid phase is fed into the suction tank .
- pump 1 includes pump section 11, which is immediately on top of suction tank 4.
- Pump section 11 includes blade wheel housing 12, which is arranged on top of suction tank 4 so that upper wall 9 forms the bottom of blade wheel housing 12, and in which upper wall 9 central opening 10 forms a suction opening from which the phases are sucked into blade wheel housing 12.
- Blade wheel housing 12 is bounded laterally by vertical, cylindrical sidewall 13 as an upward continuous extension of sidewall 6 of suction tank 4.
- the opening of discharge channel 18 is perpendicular or tangential in sidewall 13 of blade wheel housing 12.
- Blade wheel 14 in which there is a set of rotor blades 15, is arranged in the inner space of blade wheel housing 12 so that as the blade wheel rotates, the first phase and second phase sucked out of suction tank 4 through suction opening 10 are mixed together into a dispersion, which can be discharged along discharge channel 18 to the mixer.
- the inner space of blade wheel housing 12 is bounded in the upward direction by cover plate 19, in which central shaft bushing 21 is sealed with mechanical shaft seal 20, through which vertical drive shaft 16 extends into blade wheel housing 12 and blade wheel 14 is fixed to the lower end of drive shaft 16.
- Drive 17 is arranged to rotate drive shaft 16, which may consist of electric motor 22 and reduction gear 23.
- the output of pump 1 may be in the or ⁇ der of 50 - 10 000 m 3 /h.
- Drive 17 may be adapted to rotate blade wheel 14 at a peripheral speed of the or ⁇ der of 5 m/s .
- the pressure of the dispersion in dis ⁇ charge channel 18 may be of the order of 50 kPa.
- the outer dimensions of a DOP unit with a structure accordant with the prior art were a diameter of 6.7 m and a height of 4.01 m, then correspondingly for a structure accordant with the invention the diameter is 3.4 m and the height 1.75 m.
- the equipment volume of a pump accord ⁇ ant with the invention falls by 88 %, the diameter de ⁇ creases by 49 % and the height decreases by 56 %.
- the volume of the solution contained in the pump falls by approx. 75 %.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011333625A AU2011333625B2 (en) | 2010-11-26 | 2011-11-24 | Pump |
MX2013005791A MX2013005791A (en) | 2010-11-26 | 2011-11-24 | Pump. |
BR112013013099A BR112013013099A2 (en) | 2010-11-26 | 2011-11-24 | pump unit |
US13/885,635 US20130243615A1 (en) | 2010-11-26 | 2011-11-24 | Pump |
EA201390782A EA201390782A1 (en) | 2010-11-26 | 2011-11-24 | PUMP |
CA2815735A CA2815735C (en) | 2010-11-26 | 2011-11-24 | Pump |
EP11843052.9A EP2643080A1 (en) | 2010-11-26 | 2011-11-24 | Pump |
CN2011800565177A CN103249477A (en) | 2010-11-26 | 2011-11-24 | Pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20106247 | 2010-11-26 | ||
FI20106247A FI123888B (en) | 2010-11-26 | 2010-11-26 | Pump |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012069703A1 true WO2012069703A1 (en) | 2012-05-31 |
Family
ID=43269023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2011/051035 WO2012069703A1 (en) | 2010-11-26 | 2011-11-24 | Pump |
Country Status (12)
Country | Link |
---|---|
US (1) | US20130243615A1 (en) |
EP (1) | EP2643080A1 (en) |
CN (1) | CN103249477A (en) |
AU (1) | AU2011333625B2 (en) |
BR (1) | BR112013013099A2 (en) |
CA (1) | CA2815735C (en) |
CL (1) | CL2013001481A1 (en) |
EA (1) | EA201390782A1 (en) |
FI (1) | FI123888B (en) |
MX (1) | MX2013005791A (en) |
PE (1) | PE20140827A1 (en) |
WO (1) | WO2012069703A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017060568A1 (en) | 2015-10-07 | 2017-04-13 | Outotec (Finland) Oy | Extraction arrangement for solvent extraction |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124095A (en) * | 1982-07-09 | 1984-02-15 | Wen Bin Lee | Device for mixing flowing liquids |
US5501523A (en) * | 1995-01-06 | 1996-03-26 | General Signal Corporation | Impeller system for mixing and enhanced-flow pumping of liquids |
US5662871A (en) * | 1993-12-02 | 1997-09-02 | Outokumpu Engineering Contractors Oy | Method for extracting metals from large solution flows and apparatus for realizing the same |
EP1108463A1 (en) * | 1998-01-13 | 2001-06-20 | Advanced Molecular Technologies, L.L.C. | Emulsifying method and device for realising the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR538384A (en) * | 1919-12-29 | 1922-06-08 | Centrifugal mixer | |
US2239152A (en) * | 1940-08-12 | 1941-04-22 | Duriron Co | Mixing machine |
US4453829A (en) * | 1982-09-29 | 1984-06-12 | The Dow Chemical Company | Apparatus for mixing solids and fluids |
CN2342140Y (en) * | 1998-03-17 | 1999-10-06 | 郭铁柱 | Gas and liquid mixing pump |
WO2005093261A2 (en) * | 2003-12-10 | 2005-10-06 | Zacharias Joseph Van Den Berg | Submersibly operable high volume and low pressure liquid transfer equipment |
FR2929133B1 (en) * | 2008-03-31 | 2010-12-10 | Vmi | MIXING DEVICE COMPRISING A CONDUIT OF PARTICLE MECHANISM DEBOUCHING IN THE TURBULENCE AREA |
CN201212487Y (en) * | 2008-05-22 | 2009-03-25 | 山东大学 | High-efficiency long-life multifunction vane pump |
-
2010
- 2010-11-26 FI FI20106247A patent/FI123888B/en not_active IP Right Cessation
-
2011
- 2011-11-24 CA CA2815735A patent/CA2815735C/en not_active Expired - Fee Related
- 2011-11-24 PE PE2013001275A patent/PE20140827A1/en not_active Application Discontinuation
- 2011-11-24 CN CN2011800565177A patent/CN103249477A/en active Pending
- 2011-11-24 WO PCT/FI2011/051035 patent/WO2012069703A1/en active Application Filing
- 2011-11-24 BR BR112013013099A patent/BR112013013099A2/en not_active IP Right Cessation
- 2011-11-24 EP EP11843052.9A patent/EP2643080A1/en not_active Withdrawn
- 2011-11-24 MX MX2013005791A patent/MX2013005791A/en not_active Application Discontinuation
- 2011-11-24 AU AU2011333625A patent/AU2011333625B2/en not_active Ceased
- 2011-11-24 US US13/885,635 patent/US20130243615A1/en not_active Abandoned
- 2011-11-24 EA EA201390782A patent/EA201390782A1/en unknown
-
2013
- 2013-05-24 CL CL2013001481A patent/CL2013001481A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124095A (en) * | 1982-07-09 | 1984-02-15 | Wen Bin Lee | Device for mixing flowing liquids |
US5662871A (en) * | 1993-12-02 | 1997-09-02 | Outokumpu Engineering Contractors Oy | Method for extracting metals from large solution flows and apparatus for realizing the same |
US5501523A (en) * | 1995-01-06 | 1996-03-26 | General Signal Corporation | Impeller system for mixing and enhanced-flow pumping of liquids |
EP1108463A1 (en) * | 1998-01-13 | 2001-06-20 | Advanced Molecular Technologies, L.L.C. | Emulsifying method and device for realising the same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017060568A1 (en) | 2015-10-07 | 2017-04-13 | Outotec (Finland) Oy | Extraction arrangement for solvent extraction |
Also Published As
Publication number | Publication date |
---|---|
FI20106247A (en) | 2012-05-27 |
CN103249477A (en) | 2013-08-14 |
CL2013001481A1 (en) | 2013-10-25 |
BR112013013099A2 (en) | 2019-09-24 |
FI123888B (en) | 2013-12-13 |
PE20140827A1 (en) | 2014-07-18 |
CA2815735C (en) | 2015-06-02 |
EA201390782A1 (en) | 2013-11-29 |
FI20106247A0 (en) | 2010-11-26 |
CA2815735A1 (en) | 2012-05-31 |
AU2011333625A1 (en) | 2013-05-23 |
US20130243615A1 (en) | 2013-09-19 |
AU2011333625B2 (en) | 2015-08-06 |
MX2013005791A (en) | 2013-07-05 |
EP2643080A1 (en) | 2013-10-02 |
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