CN104775132A - Trapezoidal flow electrodeposition apparatus - Google Patents

Trapezoidal flow electrodeposition apparatus Download PDF

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Publication number
CN104775132A
CN104775132A CN201510140271.1A CN201510140271A CN104775132A CN 104775132 A CN104775132 A CN 104775132A CN 201510140271 A CN201510140271 A CN 201510140271A CN 104775132 A CN104775132 A CN 104775132A
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CN
China
Prior art keywords
feed liquor
winning cell
electrowinning plant
liquid inlet
liquor arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510140271.1A
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Chinese (zh)
Inventor
王浩
张伟
俞鹰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Associating Tong Ye Co Ltd
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Zhangjiagang Associating Tong Ye Co Ltd
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Priority to CN201510140271.1A priority Critical patent/CN104775132A/en
Publication of CN104775132A publication Critical patent/CN104775132A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06Operating or servicing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a trapezoidal flow electrodeposition apparatus. The apparatus comprises a liquid storage tank, a plurality of electrodeposition tanks, a liquid inlet main tube connected to the liquid outlet end of the liquid storage tank, a backflow tube connected between the liquid outlet ends of the electrodeposition tanks and the liquid inlet end of the liquid storage tank, and liquid inlet branch tubes arranged in the electrodeposition tanks, the tube orifices of the liquid inlet branch tubes are connected with the tube outlet of the liquid inlet main tube, the liquid inlet branch tubes are respectively provided with jet holes connected with the cavities of the liquid inlet branch tubes along the axial directions of the liquid inlet branch tubes, the cycle speed of an electrolyte in each of the electrodeposition tanks is controlled in a range of 75-105L/min, and the electrodeposition apparatus also comprises an electrolytic copper additive feeding device arranged in front of the liquid inlet branch tubes, and a heating device arranged in front of the liquid inlet branch tubes. The electrodeposition apparatus increases the cycle amount in each of the electrodeposition tanks by improving the cycle speed in each of the electrodeposition tanks, so cathode copper produced in the invention has high purity and good appearance quality, thereby the electrolyte in a copper refining process is effectively recycled.

Description

Trapezoidal stream electrowinning plant
Technical field
the invention belongs to the electrolyte purification technical field of non-ferrous metal metallurgy, particularly the trapezoidal stream electrowinning plant of one.
Background technology
at present, after copper refining, in the process of electrolyte purification, existing customary practice is separated out by the cupric ion in electrolytic solution, and then continue to be back in former electrolyzer, the cupric ion of precipitation is then adsorbed on negative plate.Because the internal circulating load mostly adopted in scavenging process is at present less, and Recycle design is that solution enters from trench bottom or termination, go out from another termination of groove, solution flows slowly and skewness, can not ensure that the metal ion near negative electrode is in higher concentration all the time, when elemental release is accelerated on current density raising, negative electrode, will concentration polarization be produced, sedimentary stirring when internal circulating load is large, also can be caused to make solutions turbid or cause the anode sludge floating.So far, cause the cupric ion visual appearance that is adsorbed on negative plate poor, do not reach the requirement of Cu-CATH-2 trade mark standard cathode copper in GB/T467-2010, refining furnace melting again can only be returned as waste cupron, in the process of this recirculation, inevitably cause the waste of the energy, add the loss of cupric ion in tooling cost and the course of processing.
Summary of the invention
the object of this invention is to provide a kind of electrowinning plant utilizing trapezoidal Flow Technique to prepare cathode copper, this device increases internal circulating load by improving speed of circulation.
for achieving the above object, the technical solution used in the present invention is: trapezoidal stream electrowinning plant, comprise reservoir, some Winning cells, be connected to the feed liquor house steward on described reservoir outlet end, be connected to the return line between described Winning cell outlet end and described reservoir liquid inlet, be located at the feed liquor arm in described Winning cell, the mouth of pipe of described feed liquor arm exports with the pipe on described feed liquor house steward and is connected, described feed liquor arm axially offers multiple jet hole communicated with its tube chamber along it, circulation of elecrolyte speed control in each described Winning cell is at 75 ~ 105L/min, heating unit before described electrowinning plant also comprises the electrolytic copper additive throwing device before being located at described feed liquor arm and is arranged on described feed liquor arm.
preferably, described electrowinning plant also comprises the filter screen being at least wrapped in and described feed liquor arm offering described jet hole side, in order to reduce the fluid speed at described jet hole place.
preferably, described electrowinning plant also comprises the filtration unit before being arranged on described feed liquor arm, for filtering the impurity in electrolytic solution.
preferably, the described feed liquor arm in each described Winning cell has one at least, and described feed liquor arm is along the long sidewall setting of described Winning cell side, and all described feed liquor arms are spaced apart along the short transverse of described Winning cell.
preferably, a sidewall of described Winning cell also offers the liquid return hole communicated with described liquid returning tube.
preferably, described electrowinning plant also comprises the mounting block be installed in described Winning cell on the side sidewall being provided with described feed liquor arm, and for fixing described feed liquor arm, described mounting block has multiple, and the length bearing of trend along described sidewall is spaced apart.
preferably, the drain hole of emptying described electrolytic solution when the bottom surface of described Winning cell also offers for overhauling.
further preferably, the diameter of described feed liquor house steward and described liquid returning tube is 150mm, and the described feed liquor arm in each described Winning cell has 3, and the diameter of the described jet hole on all described feed liquor arms is 8 ~ 10mm.
further preferably, described heating unit is be located at titanium coil pipe in described reservoir or vapour pipe.
further preferably, the temperature entering the described electrolytic solution of described Winning cell controls at 50 ~ 65 DEG C.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: trapezoidal stream electrowinning plant of the present invention, the internal circulating load of solution in Winning cell is added by the speed of circulation improved in Winning cell, the phenomenon decreasing concentration polarization occurs, improve current density, ensure that the quality product of cathode copper reaches standard-required, improve the purity of product simultaneously, effectively recycled the electrolytic solution after copper refining.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of trapezoidal stream electrowinning plant of the present invention;
accompanying drawing 2 is A place enlarged view in accompanying drawing 1;
wherein: 1, reservoir; 2, Winning cell; 21, mounting block; 22, liquid return hole; 23, drain hole; 3, feed liquor house steward; 4, feed liquor arm; 41, jet hole; 5, liquid returning tube; 6, electrolytic copper additive throwing device; 7, heating unit; 8, filtration unit; 9, filter screen.
Embodiment
below in conjunction with drawings and the specific embodiments, technical scheme of the present invention is further elaborated.
shown in Figure 1, a kind of trapezoidal stream electrowinning plant, comprising the reservoir 1 for storing the electrolytic solution in copper refining process, multiple Winning cell 2, the feed liquor house steward 3 be connected on reservoir 1 outlet end for carrying out electrodeposition recovery to the cupric ion in electrolytic solution, being connected to the liquid returning tube 5 between Winning cell 2 outlet end and reservoir 1 liquid inlet, the feed liquor arm 4 be located in Winning cell 2, the mouth of pipe of this feed liquor arm 4 is connected to the pipe exit of feed liquor house steward 3.Circulation of elecrolyte speed control in each Winning cell 2 is at 75 ~ 105 L/min.In the present embodiment, feed liquor house steward 3 and liquid returning tube 5 all have employed the pvc pipe that diameter is 150mm.
shown in Fig. 1, Fig. 2, a feed liquor arm 4 is all at least provided with in each Winning cell 2, preferably, all feed liquor arms 4 are arranged along the long sidewall of Winning cell 2 side, the length bearing of trend of all feed liquor arms 4 is consistent with the long side lengths bearing of trend of this Winning cell 2 side, in the present embodiment, this feed liquor arm 4 has three, short transverse respectively along Winning cell 2 is spaced apart, the total flux of three described feed liquor arms 4 can reach 75 ~ 105 L/min, substantially increase current density simultaneously, improve production capacity.In order to ensure feed liquor speed, guarantee that Winning cell 2 Inner electrolysis liquid level is steady, time liquid measure of liquid returning tube 5 should be consistent with total liquid inlet volume of all feed liquor arms 4 in Winning cell 2.Feed liquor arm 4 axially offers multiple jet hole 41 along it, the diameter of jet hole 41 is 8 ~ 10mm, in order to prevent jet hole 41 place to go out flow velocity too fast, cause being formed at jet hole 41 place and spray torrent, at cathode plate surface formation radial pattern vestige, in the present embodiment, the outside surface of feed liquor arm 4 is also enclosed with the filter screen 9 that one deck adopts stainless material to make, this filter screen 9 at least can cover side feed liquor arm 4 offering jet hole 41, by arranging filter screen 9, thus reduce the fluid speed at jet hole 41 place.Winning cell 2 with the relative long sidewall being provided with feed liquor arm 4 also offers the liquid return hole 22 communicated with liquid returning tube 5, the electrolytic solution in Winning cell 2 after electrodeposition is flow to after in liquid returning tube 5 by liquid return hole 22 and is delivered to reservoir 1 liquid inlet place by liquor pump.
shown in Figure 1, this electrowinning plant also comprises the electrolytic copper additive throwing device 6 be arranged on reservoir 1, in electrolytic deposition process, copper ion concentration in electrolytic solution along with produce carrying out can be more and more lower, but minimum need maintain 25g/L, otherwise the cathode copper surface quality be prepared into can seriously glide, in order to stop the generation of this phenomenon, guarantee the quality of the cathode copper made by dripping suitable additive.In the present embodiment, this additive comprises gelatin, thiocarbamide, casein food grade and hydrochloric acid, here, gelatin, thiocarbamide and casein food grade can mix drip and hydrochloric acid need drip separately in addition, as in former electrolytic solution contain hydrochloric acid, then without the need to dripping hydrochloric acid again.
shown in Figure 1, in order to ensure the Cathode Copper Quality made, this electrode device also comprises the heating unit 7 for heating electrolytic solution be located on reservoir 1, heating unit 7 can be provided at titanium coil pipe in reservoir 1 or vapour pipe, by heating unit 7, the temperature of the electrolytic solution passed in electrolyzer is made to maintain 50 ~ 65 DEG C.
shown in Figure 1, electrowinning plant also comprises the filtration unit 8 before being located at feed liquor arm 4, for filtering the impurity in electrolytic solution.If it is more to enter the impurity contained in the electrolytic solution in Winning cell 2, not only easily blocks the jet hole 41 on feed liquor arm 4, reduce and flow quantity; If the copper coin face particle that can make to obtain is more and impurity and negative electrode adhere to each other, cause electrolytic copper Quality Down.By arranging filtration unit 8, effectively can reduce the foreign matter content in the electrolytic solution entered in electrolyzer, certainly, this filtration unit 8 can also be arranged on the liquid inlet of reservoir 1, between reservoir 1 and feed liquor house steward 3, only need the foreign matter content that can reduce in the electrolytic solution entering Winning cell 2, this filtration unit 8 can adopt the filter screen be made up of stainless steel, regularly clears up filtration unit 8, checks, guarantee filter effect.
shown in Fig. 1, Fig. 2, install in electrolyzer firmly in order to ensure feed liquor arm 4, the long sidewall in side being provided with feed liquor arm 4 in electrolyzer is provided with mounting block 21, for fixing feed liquor arm 4, this mounting block 21 has multiple, and the long side bearing of trend interval along electrolyzer is arranged.The bottom surface of Winning cell 2 also offers drain hole 23, when overhauling Winning cell 2, the electrolytic solution in the emptying Winning cell 2 of drain hole 23 can be opened.
trapezoidal stream electrowinning plant of the present invention, by improving feed liquor speed, thus the internal circulating load that improve in Winning cell, before feed liquor arm, install filtration unit additional, on reservoir, install electrolytic copper additive throwing device additional simultaneously, eliminate concentration polarization phenomenon, obtained electrolytic copper quality is high, electrolytic copper surface uniform, crystallization effect are good, and purity is high.Feed liquor arm wraps up filter screen, has effectively stopped to cause because jet hole place flow velocity is fast and sprayed torrent in the formation of jet hole place, occur in the phenomenon of cathode copper surface formation radial pattern vestige.In reservoir, increase heating unit simultaneously, the temperature of the electrolytic solution entered in Winning cell can be effectively ensured, prevent electrolytic copper quality from occurring fluctuation.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (10)

1. a trapezoidal stream electrowinning plant, it is characterized in that: comprise reservoir, some Winning cells, be connected to the feed liquor house steward on described reservoir outlet end, be connected to the return line between described Winning cell outlet end and described reservoir liquid inlet, be located at the feed liquor arm in described Winning cell, the mouth of pipe of described feed liquor arm exports with the pipe on described feed liquor house steward and is connected, described feed liquor arm axially offers multiple jet hole communicated with its tube chamber along it, circulation of elecrolyte speed control in each described Winning cell is at 75 ~ 105L/min, heating unit before described electrowinning plant also comprises the electrolytic copper additive throwing device before being located at described feed liquor arm and is arranged on described feed liquor arm.
2. trapezoidal stream electrowinning plant according to claim 1, is characterized in that: described electrowinning plant also comprises the filter screen being at least wrapped in and described feed liquor arm offering described jet hole side, in order to reduce the fluid speed at described jet hole place.
3. trapezoidal stream electrowinning plant according to claim 1, is characterized in that: described electrowinning plant also comprises the filtration unit before being arranged on described feed liquor arm, for filtering the impurity in electrolytic solution.
4. trapezoidal stream electrowinning plant according to claim 1, it is characterized in that: the described feed liquor arm in each described Winning cell has one at least, and described feed liquor arm is along the long sidewall setting of described Winning cell side, all described feed liquor arms are spaced apart along the short transverse of described Winning cell.
5. trapezoidal stream electrowinning plant according to claim 1, is characterized in that: a sidewall of described Winning cell also offers the liquid return hole communicated with described liquid returning tube.
6. trapezoidal stream electrowinning plant according to claim 1, it is characterized in that: described electrowinning plant also comprises the mounting block be installed in described Winning cell on the side sidewall being provided with described feed liquor arm, for fixing described feed liquor arm, described mounting block has multiple, and the length bearing of trend along described sidewall is spaced apart.
7. trapezoidal stream electrowinning plant according to claim 1, is characterized in that: the drain hole of emptying described electrolytic solution when the bottom surface of described Winning cell also offers for overhauling.
8. according to the arbitrary described trapezoidal stream electrowinning plant of claim 1 to 7, it is characterized in that: the diameter of described feed liquor house steward and described liquid returning tube is 150mm, described feed liquor arm in each described Winning cell has 3, and the diameter of the described jet hole on all described feed liquor arms is 8 ~ 10mm.
9. according to the arbitrary described trapezoidal stream electrowinning plant of claim 1 to 7, it is characterized in that: described heating unit is be located at titanium coil pipe in described reservoir or vapour pipe.
10., according to the arbitrary described trapezoidal stream electrowinning plant of claim 1 to 7, it is characterized in that: the temperature entering the described electrolytic solution of described Winning cell controls at 50 ~ 65 DEG C.
CN201510140271.1A 2015-03-27 2015-03-27 Trapezoidal flow electrodeposition apparatus Pending CN104775132A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105154923A (en) * 2015-10-21 2015-12-16 五矿铜业(湖南)有限公司 Electrolytic tank device
CN113631762A (en) * 2019-03-29 2021-11-09 Jx金属株式会社 Electrolysis apparatus and electrolysis method

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Publication number Priority date Publication date Assignee Title
CN201686753U (en) * 2010-05-13 2010-12-29 王红雨 Electrolysis device for extracting copper through electrolysis of alkaline waste etching solution
CN103436916A (en) * 2013-08-05 2013-12-11 湖南凯天重金属污染治理工程有限公司 Technology and device for recovering refined copper from low copper content wastewater
JP2014084496A (en) * 2012-10-23 2014-05-12 Pan Pacific Copper Co Ltd Method for producing electrolytic copper
CN104032332A (en) * 2014-06-04 2014-09-10 杭州三耐环保科技有限公司 High-current density metal electrolytic deposition device with bottom inlet liquid circulation and realization method thereof
CN203890449U (en) * 2014-06-06 2014-10-22 东北大学 Device for preparing high-purity copper
CN203923411U (en) * 2014-06-04 2014-11-05 杭州三耐环保科技有限公司 A kind of device of bottom liquid inlet circulation high current density electrolysis metal refining
CN204550724U (en) * 2015-03-27 2015-08-12 张家港联合铜业有限公司 Trapezoidal stream electrowinning plant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201686753U (en) * 2010-05-13 2010-12-29 王红雨 Electrolysis device for extracting copper through electrolysis of alkaline waste etching solution
JP2014084496A (en) * 2012-10-23 2014-05-12 Pan Pacific Copper Co Ltd Method for producing electrolytic copper
CN103436916A (en) * 2013-08-05 2013-12-11 湖南凯天重金属污染治理工程有限公司 Technology and device for recovering refined copper from low copper content wastewater
CN104032332A (en) * 2014-06-04 2014-09-10 杭州三耐环保科技有限公司 High-current density metal electrolytic deposition device with bottom inlet liquid circulation and realization method thereof
CN203923411U (en) * 2014-06-04 2014-11-05 杭州三耐环保科技有限公司 A kind of device of bottom liquid inlet circulation high current density electrolysis metal refining
CN203890449U (en) * 2014-06-06 2014-10-22 东北大学 Device for preparing high-purity copper
CN204550724U (en) * 2015-03-27 2015-08-12 张家港联合铜业有限公司 Trapezoidal stream electrowinning plant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105154923A (en) * 2015-10-21 2015-12-16 五矿铜业(湖南)有限公司 Electrolytic tank device
CN113631762A (en) * 2019-03-29 2021-11-09 Jx金属株式会社 Electrolysis apparatus and electrolysis method
CN113631762B (en) * 2019-03-29 2024-03-01 Jx金属株式会社 Electrolysis apparatus and electrolysis method

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Application publication date: 20150715