CN103409772A - Enclosed frame-type circulatory system apparatus for electrodeposition nickel or electrodeposition cobalt electrolyte - Google Patents
Enclosed frame-type circulatory system apparatus for electrodeposition nickel or electrodeposition cobalt electrolyte Download PDFInfo
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- CN103409772A CN103409772A CN2013103505408A CN201310350540A CN103409772A CN 103409772 A CN103409772 A CN 103409772A CN 2013103505408 A CN2013103505408 A CN 2013103505408A CN 201310350540 A CN201310350540 A CN 201310350540A CN 103409772 A CN103409772 A CN 103409772A
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Abstract
The invention relates to electrolytic deposition equipment in the technical field of chemical engineering, and specifically provides an enclosed frame-type circulatory system apparatus for electrodeposition nickel or electrodeposition cobalt electrolyte. According to the apparatus, an electrodeposition cell is provided with a cathode frame and an anode frame; a penetration membrane is arranged between the cathode frame and the anode frame; the electrodeposition cell is filled with electrolyte; the electrolyte flows into the cathode frame with an electrolyte inlet arranged on the cathode frame, and then enters into an anode frame from the penetration membrane; electrolyzed anode liquid flows to a connected branch pipe through the lower outlet of the anode frame; and the liquid in the branch pipe converges to an anode liquid overflow mouth, and is discharged from the electrodeposition cell. The apparatus changes the traditional dependence on diaphragm rack and diaphragm sleeve, substantially shortens homopolar pitch in the electrodeposition cell, and increases utilization rate of the cell. The apparatus has low power consumption so as to save production cost; and no artificial labor force is required for lifting the cathode and anode out of the electrodeposition cell or covering diaphragm bag on the diaphragm rack, thereby saving labor force.
Description
Technical field
The present invention relates to the electrolytic deposition equipment in chemical technology field, be specially the circulating system device of a kind of airtight frame electro deposited nickel or electrodeposited cobalt electrolytic solution.
Background technology
In traditional electro deposited nickel or the device of electrodeposited cobalt, all adopt the diaphragm electrodeposition structure, the diaphragm electrodeposition structure has two kinds, a kind of is to make cathode sheath in the cathode compartment diaphragm bag, negative electrode in electrolyzer need be seated in diaphragm bag, diaphragm bag has and will support with diaphragm frame, like this diaphragm frame is placed in Winning cell, will inevitably occupy the space in groove, make the same interpole gap must be on 120-130mm, another barrier film is to make anode jacket in anolyte compartment's diaphragm bag, same reason, will inevitably make same interpole gap very large, the groove utilization ratio descends, with the large consequence of bringing of interpole gap, be exactly that bath voltage is larger, electric energy consumption is high, the groove utilization coefficient is low.Due in electrolytic deposition process, consume a considerable amount of diaphragm bags and diaphragm frame, and increase the difficulty of hoisting process, increase labor strength.Totally increased cost.
Owing to having adopted diaphragm bag, the acid mist for the anode generation just is difficult to unified discharge like this, and traditional electrowinning plant, to the direct amorphous operating space that enters of the acid mist produced in electrolytic deposition process, has had a strong impact on environment.Perhaps on Winning cell, increase gas skirt, when putting into negative plate, gas skirt need to be sling like this, and the sealing effectiveness of gas skirt is also bad, if seal very goodly, the water droplet of generation can drop onto in electrolytic solution, affects amount of electrolyte.So traditional electrowinning plant also has a lot of drawbacks, be badly in need of improving.
Summary of the invention
The present invention just is being based on above technical problem, and a kind of saving labor force is provided, and saves production cost, greatly shorten same interpole gap, save power consumption, improve output, the acid mist of going back the antianode generation carries out a kind of airtight frame electro deposited nickel of recycling or the circulating system device of electrodeposited cobalt electrolytic solution.
Technical scheme of the present invention is:
The circulating system device of a kind of airtight frame electro deposited nickel or electrodeposited cobalt electrolytic solution, comprise the Winning cell cell body, be arranged on anode frame and negative electrode frame in Winning cell, in anode frame, place positive plate, in the negative electrode frame, place negative plate, between negative electrode frame and anode frame, permeable membrane is set, filling electrolytic solution in Winning cell, electrolytic solution is along with the electrolyte entrance arranged on the negative electrode frame flows into the negative electrode frame, then in the situation that certain pressure enters anode frame from permeable membrane, the size of pressure is the pressure that the interior liquid level of anode frame and the liquid level difference between the liquid level in the negative electrode frame cause, anolyte after electrolysis flow to the arm of connection through the outlet of anode frame lower end.After the liquid in arm is confluxed to house steward, to anode hydrorrhea head piece, discharge Winning cell, pipeline used is U-shaped pipeline here.
Winning cell is connected with header tank, and the electrolytic solution in header tank enters in Winning cell by the feed flow house steward, and the house steward that the feed flow house steward discharges than anolyte is high.Can make like this electrolytic solution in header tank at the uniform velocity enter Winning cell, and under the infiltration of permeable membrane, at the uniform velocity enter in anode frame and carry out electrodeposition, in the certain situation of the house steward's who discharges due to feed flow house steward and anolyte difference of altitude, can guarantee that electrolytic deposition process at the uniform velocity carries out, the steady quality of electrolytic nickel, because Winning cell inner cathode frame is closed structure, pH in the negative electrode frame is stable, makes the current efficiency of this device high.
The poor formed pressure of dependence liquid level between the liquid level of the electrolytic solution in the liquid level that described certain pressure refers to the electrolytic solution in the negative electrode frame and anode frame, its liquid level is poor is 15-25 ㎜.
Adopt this device, can make the interpole gap between anode frame and negative electrode frame is 70-130 ㎜, and such interpole gap can improve the groove utilization ratio.
Anolyte after electrolysis flow to Lower tank by the pipeline be communicated with the anolyte overflow port, the segment anode liquid pump enters to sink the nickel groove, then to heavy nickel groove, add inward nickelous carbonate, finally send flame filter press to filter, a part is by pulling back to header tank in addition, then enters Winning cell after adding bright sulfur acid nickel solution in header tank.
The flow direction of electro deposited nickel or electrodeposited cobalt electrolytic solution, by inlet pipe, load electrolytic solution in Winning cell, electrolytic solution is along with the electrolyte entrance arranged on the negative electrode frame flows into the negative electrode frame, electrolyte entrance can have a plurality of, the shape of entrance is unfixing yet, due to the liquid level in the negative electrode frame higher than the liquid level in anode frame, between two frames, has liquid level difference, liquid level is poor is 15-25 ㎜, in the situation that there is pressure electrolytic solution at the uniform velocity by permeable membrane, to enter anode frame, anolyte after electrolysis flows out to the pipeline of connection from the anolyte outlet, anolyte is confluxed to anode hydrorrhea head piece.
Permeable membrane is corrosion resistant woven dacron, permeable membrane, and as preferably, the permeable membrane of selecting is woven dacron, its model is 3751.The selection of permeable membrane is more crucial, as the permeable membrane poor permeability, can affect the speed of electrodeposition, if perviousness is very good, electrolytic solution enters anode frame very soon, can not keep liquid level poor, does not also reach the electrodeposition effect.
The quantity of Winning cell inner cathode frame and anode frame determines according to the length of Winning cell, but remains anode frame than the quantity of negative electrode frame many, that is to say, the quantity of negative electrode frame is at least 1, and the quantity of anode frame is at least 2.
Interpole gap between anode frame and negative electrode frame is 70-130mm; The size of interpole gap is very crucial, and interpole gap is larger, and power consumption is just larger, and interpole gap is less, and power consumption is just little, and still due to the restriction of working condition, the interpole gap that this device can reach is 70-130 mm.Anolyte after electrolysis flow to Lower tank by the pipeline be communicated with the anolyte overflow port, and the segment anode liquid pump enters to sink the nickel groove, then to heavy nickel groove, adds inward nickelous carbonate, generates single nickel salt (NiSO
4) and H
2O and CO
2↑, finally send flame filter press to filter, a part of anolyte is by pulling back to header tank in addition, then enters Winning cell after adding bright sulfur acid nickel solution in header tank.The concentration of bright sulfur acid nickel solution is 80～90g/l.
Because the same interpole gap of this device has been dwindled greatly, so, the electric nickel or the electric cobalt product that adopt this device to produce, more than not only meeting GB/T6516-2010Ni9996, the standard that YS/T255-2009Co9995 is above, also significantly descend at power consumption.
Compared with prior art, beneficial effect of the present invention is:
(1), changed tradition the dependence diaphragm frame make the separated situation of anode and cathode, shortened greatly the same interpole gap in Winning cell, improved the groove utilization ratio.
(2), power consumption is low, saved production cost.
(3), without by hand labor power, negative electrode and anode are hung out to Winning cell at every turn, also without using of labor, diaphragm bag is enclosed within on diaphragm frame, saved the labor force.
(4), anolyte compartment's electrolyte inside enters the anolyte overflow port after pipeline confluxes, after treatment, sneaking into pure cell liquor pump to header tank, can enter in Winning cell again.
(5), changed in old electrowinning plant the severe situation of environment that the direct amorphous discharge of acid mist that produces for electrolytic deposition process causes.
The accompanying drawing explanation
Fig. 1 is traditional Winning cell inner cathode district and the structural representation of positive column;
Fig. 2 is electrolyte circulation system device schematic diagram in the present invention;
Wherein, 1---header tank, 2---electrolyzer, 3---Lower tank, 4---readjustment tank, 5---heavy nickel groove, 6---negative electrode frame, 7---anode frame, 8---permeable membrane, 13---diaphragm bag, 14---cathodic area, 15---positive column.
Embodiment
Below in conjunction with embodiment, the present invention is further described in detail, the embodiment provided does not limit the scope of the invention, and the present invention expands to any new feature or any new combination disclosed in this manual.
Comparative Examples 1:
As shown in Figure 1, negative electrode in traditional electrolyzer need be seated in diaphragm bag, diaphragm bag has and will make with diaphragm frame, occupied the space in groove, therefore must be more than 120-130mm with interpole gap, according to external testing data, homopolarity hypotelorism 30mm, can increase respectively 23% by original each anode electrolytic cell cathode sheets number, and the electrolysis interpole gap shortens, bath voltage decline 0.5v, for electric consumption, descend 310%, existing cell construction, bath voltage are usually more than 4.0V, electric energy consumption is high, and the groove utilization coefficient is also low.
Embodiment 1:
As shown in Figure 2, the circulating system device of electro deposited nickel or electrodeposited cobalt electrolytic solution, at first in Winning cell, be provided with 34 negative electrode frames and 35 anode frames, spacing between anode and negative electrode is 100mm, model be set be 3751 permeable membrane between negative electrode frame and anode frame, positive plate is put into anode frame, negative plate is put into the negative electrode frame, on the negative electrode frame, electrolyte entrance is set, the anolyte outlet is set in the lower end of anode frame, in the upper end of anode frame, the acid mist relief outlet is set, an other end at Winning cell arranges the import of header tank catholyte, anode frame is closed structure, the acid mist produced in anode frame is discharged and is collected by the acid mist relief outlet is unified, acid mist after collection is unified and carries out the exhausting processing.
The flow direction of electro deposited nickel or electrodeposited cobalt electrolytic solution, by arm, load electrolytic solution in Winning cell, electrolytic solution is along with the electrolyte entrance arranged on the negative electrode frame flows into the negative electrode frame, electrolyte entrance can have a plurality of, due to the liquid level in the negative electrode frame higher than the liquid level in anode frame, between two frames, has liquid level difference, liquid level is poor is 25mm, in the situation that there is pressure electrolytic solution at the uniform velocity by permeable membrane, to enter anode frame, anolyte after electrolysis flows out to the pipeline of connection from the anolyte outlet, anolyte is confluxed to anode hydrorrhea head piece.
Embodiment 2:
Apparatus structure adopts the structure in embodiment 1, and the quantity of only changing the negative electrode frame in each Winning cell is 48, and the quantity of anode frame is 49, and the pole distance between negative electrode frame and anode frame is 70mm.
Embodiment 3:
Apparatus structure adopts the structure in embodiment 1, and the quantity of only changing the negative electrode frame in each Winning cell is 85, and the quantity of anode frame is 86, and the pole distance between negative electrode frame and anode frame is 40mm.
Comparative Examples 1:
In same device, adopt traditional electrowinning plant, the negative electrode number in every groove is 26, and interpole gap is 130mm, measures different poles spacing electrodeposition test-results, and the bath voltage in experimental result, electricity effect and power consumption are analyzed:
In same Winning cell, as seen from the above table, interpole gap is less, and its bath voltage is lower, and its electricity effect is higher, and power consumption is lower, therefore, adopts this device, can save production cost.
To have 188 electrolyzers now, calculate 1 year 330 days working days, and electrolytic nickel energy production capacity situation is as follows:
Embodiment 3:
Adopt the device in embodiment 1, different permeable membranes are done to the electrodeposition test, experimental result is as follows:
As can be seen from the above table; model is the most applicable permeable membrane of doing of 3751 woven dacron; it can make the interior liquid level of negative electrode frame and the poor 15-25mm of remaining on of liquid level in anode frame; there is certain pressure to make in cathode compartment to be penetrated into anolyte compartment; and corrosion-resistant, sufficient intensity is arranged, not fragile; be applicable to large-scale production, and little on the bath voltage impact.
Claims (5)
1. the circulating system device of an airtight frame electro deposited nickel or electrodeposited cobalt electrolytic solution, comprise the Winning cell cell body, be arranged on anode frame and negative electrode frame in Winning cell, it is characterized in that: Winning cell is connected with header tank, electrolytic solution in header tank enters in Winning cell by the feed flow house steward, in Winning cell, be provided with negative electrode frame and anode frame, between negative electrode frame and anode frame, permeable membrane is set, after in Winning cell, loading electrolytic solution, electrolytic solution is along with the electrolyte entrance arranged on the negative electrode frame flows into the negative electrode frame, then in the situation that certain pressure enters anode frame from permeable membrane, anolyte after electrolysis flow to the arm of connection through the outlet of anode frame lower end, then the liquid in arm is confluxed to discharging Winning cell to anode hydrorrhea head piece after house steward, the house steward that the feed flow house steward discharges than anolyte is high.
2. the circulating system device of airtight frame electro deposited nickel according to claim 1 or electrodeposited cobalt electrolytic solution, it is characterized in that: described certain pressure refers to the poor formed pressure of liquid level between the liquid level of the electrolytic solution that liquid level of electrolyte and the anode frame in the negative electrode frame is interior, the poor 15-25 ㎜ that remains on of liquid level.
3. the circulating system device of airtight frame electro deposited nickel according to claim 1 or electrodeposited cobalt electrolytic solution, it is characterized in that: described liquid in arm is confluxed to anode hydrorrhea head piece, through pipeline, discharge Winning cell again, pipeline used is U-shaped pipeline here.
4. the circulating system device of airtight frame electro deposited nickel according to claim 1 or electrodeposited cobalt electrolytic solution is characterized in that: the same interpole gap in described Winning cell is 70-130 ㎜.
5. the circulating system device of airtight frame electro deposited nickel according to claim 1 or electrodeposited cobalt electrolytic solution, it is characterized in that: the anolyte after described electrolysis flow to Lower tank by the pipeline be communicated with the anolyte overflow port, the segment anode liquid pump enters to sink the nickel groove, then to heavy nickel groove, add inward nickelous carbonate, finally send flame filter press to filter, a part is by pulling back to header tank in addition, then enters Winning cell after adding bright sulfur acid nickel solution in header tank.
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| CN201310350540.8A CN103409772B (en) | 2013-08-13 | 2013-08-13 | A kind of circulating system device of closed frame electro deposited nickel or electrodeposited cobalt electrolyte |
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| CN201310350540.8A CN103409772B (en) | 2013-08-13 | 2013-08-13 | A kind of circulating system device of closed frame electro deposited nickel or electrodeposited cobalt electrolyte |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820821A (en) * | 2014-02-28 | 2014-05-28 | 金川集团股份有限公司 | Liquid level adjusting device for nickel electrolytic tank |
| CN106894060A (en) * | 2017-03-17 | 2017-06-27 | 中科京投环境科技江苏有限公司 | A kind of closed metallurgical electrolysis device |
| CN112981511A (en) * | 2021-02-05 | 2021-06-18 | 范文学 | Anode system with high current efficiency |
| CN113272476A (en) * | 2019-01-21 | 2021-08-17 | 迪诺拉永久电极股份有限公司 | Cell frame element, electrolytic cell and electrodialysis cell |
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| GB416527A (en) * | 1933-06-22 | 1934-09-17 | Francis Lawrence Bosqui | Improvements in the production of cobalt |
| US4030989A (en) * | 1976-05-11 | 1977-06-21 | Anglonor S. A. | Electrowinning process |
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| CN101532095A (en) * | 2009-04-01 | 2009-09-16 | 烟台凯实工业有限公司 | Method for producing electrodeposited cobalt by non-hydrochloric acid electrolyte |
| CN101914784A (en) * | 2010-08-30 | 2010-12-15 | 江苏凯力克钴业股份有限公司 | Method for producing electrodeposition cobalt |
| CN201801606U (en) * | 2010-09-30 | 2011-04-20 | 新疆新鑫矿业股份有限公司阜康冶炼厂 | Diaphragm type electrolytic tank of electro-deposited nickel |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB416527A (en) * | 1933-06-22 | 1934-09-17 | Francis Lawrence Bosqui | Improvements in the production of cobalt |
| US4030989A (en) * | 1976-05-11 | 1977-06-21 | Anglonor S. A. | Electrowinning process |
| JPH05209998A (en) * | 1991-10-02 | 1993-08-20 | Westinghouse Electric Corp <We> | Extraction method of technetium from radioactive polluted metal |
| CN1186875A (en) * | 1996-12-29 | 1998-07-08 | 中南工业大学 | Method and device for on-line control of organic additive in electrolytic deposition process of metal |
| CN101532095A (en) * | 2009-04-01 | 2009-09-16 | 烟台凯实工业有限公司 | Method for producing electrodeposited cobalt by non-hydrochloric acid electrolyte |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820821A (en) * | 2014-02-28 | 2014-05-28 | 金川集团股份有限公司 | Liquid level adjusting device for nickel electrolytic tank |
| CN106894060A (en) * | 2017-03-17 | 2017-06-27 | 中科京投环境科技江苏有限公司 | A kind of closed metallurgical electrolysis device |
| CN113272476A (en) * | 2019-01-21 | 2021-08-17 | 迪诺拉永久电极股份有限公司 | Cell frame element, electrolytic cell and electrodialysis cell |
| US11365484B2 (en) | 2019-01-21 | 2022-06-21 | De Nora Permelec Ltd. | Chamber frame element, electrolyzer, and electrodialysis cell |
| CN112981511A (en) * | 2021-02-05 | 2021-06-18 | 范文学 | Anode system with high current efficiency |
| CN112981511B (en) * | 2021-02-05 | 2023-11-10 | 范文学 | Anode system with high current efficiency |
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