CN102420344A - Technology for reclaiming lead from waste lead storage batteries by using pulse power supply - Google Patents
Technology for reclaiming lead from waste lead storage batteries by using pulse power supply Download PDFInfo
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- CN102420344A CN102420344A CN2011103952493A CN201110395249A CN102420344A CN 102420344 A CN102420344 A CN 102420344A CN 2011103952493 A CN2011103952493 A CN 2011103952493A CN 201110395249 A CN201110395249 A CN 201110395249A CN 102420344 A CN102420344 A CN 102420344A
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- waste
- pulse power
- lead accumulator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The invention discloses a technology for reclaiming lead from waste lead storage batteries by using a pulse power supply, and belongs to the technical field of reclamation and reprocessing of waste lead storage batteries. The pulse direct-current power supply is adopted in electrolysis treatment, the pulse direct-current power supply is connected with an electrolytic bath, 3 to 7 electrode partition plates are arranged in the electrolytic bath, the electrode partition plates partition the electrolytic bath into 4 to 8 independent areas, and each independent area forms a micro electrolysis field in a power-on state; and a liquid inlet pipe is arranged at the upper end of the electrolytic bath, and a liquid outlet pipe is arranged at the lower end of the electrolytic bath. The technology has the advantages of power saving in the whole process flow, low voltage, pulse polarization prevention, short time, low power consumption and no pollution.
Description
Technical field
The present invention relates to a kind of pulsed capacitance technology and reclaim used and scrapped battery.
Background technology
In the modern life, lead accumulator has been widely used in the consumptive material product of generatings such as automobile, telecommunications, railway, electric motor car, solar energy with a plurality of fields such as power storage, because the annual consumption of lead accumulator is huge; If ability recycling; Even make the product of recovery be used for lead accumulator production basically, and realize waste and old lead accumulator complete alternation regeneration, not only have high economic benefit; And the characteristics of the energy-saving and cost-reducing and environmental protection that it had, have more the important social benefit.
The wet treatment lead plaster reclaims the concern that lead is reviver industry always, still, adopts traditional manufacturing technique method again to reclaim waste and old lead accumulator; Not only the wasting of resources is huge, and energy consumption is high, and other parts in the waste and old lead accumulator; Only even do not handle and just give directly discarding through simple process; Can not accomplish waste and old lead accumulator circular regeneration, therefore, cause environmental pollution serious.
Chinese patent CN 1470675A had proposed to adopt the current curve of drawing under the different constant-potential electrolysis conditions in 2002, with the reduction terminal point of the economical rationality of the definite judgement lead plaster of current value.
But current density is little, and course of reaction can produce very big heat, is easy to make that the water in the electrolyte evaporates, and the pole plate at the two poles of the earth also can be polarized very soon, and the stirring that when polarization, need heat up or not stop removes polarization phenomena.
Summary of the invention
In order to overcome the deficiency of prior art; The present invention provides a kind of and reclaims technology plumbous in the waste and old lead accumulator with the pulse power, to be raw material through the lead plaster in the pretreated used and scrapped battery, is electrolyte with the alkaline solution; Said lead plaster is carried out electrolytic treatments; It is characterized in that: said electrolytic treatments adopts pulse dc power, and said pulse dc power is connected with electrolytic cell, is provided with 3～7 separators in the said electrolytic cell; Said separators resolves into 4～8 isolated areas with said electrolytic cell, and each said isolated area forms little electrolysis field under the electric connection state; Said electrolytic cell upper end is provided with feed tube, and the lower end is provided with drain pipe.
As preferably, current density is controlled to be 500～2000A/ ㎡ during said electrolytic treatments, and the reaction time of said lead plaster in said electrolytic cell is 7～8 hours.
As preferably, hydroxide ion content is 15%～30% in the said alkaline solution.
As preferably, the temperature of the said alkaline solution in the said feed tube is 10～15 ℃.
As preferably, said separators is provided with grid.
As preferably, said preliminary treatment is waste and old lead accumulator cream to be carried out desulfuration handle.
As preferably, said drain pipe is provided with valve, is provided with screen pack behind the said valve.
As preferably, said electrolytic cell two ends are respectively arranged with screw rod.
As preferably, said electrolytic cell and said feed tube or said drain pipe junction are provided with rubber ring.
Compared with prior art, the invention has the advantages that: whole process flow saves time, power saving, and voltage is low, has pulse dc power to prevent polarization, has realized low-temp reaction, has saved operating personnel's workload, and the time is short, little power consumption; Easy to connect, only need get final product in the anode and cathode energising of both sides, do not need too much lead connection; Whole process unit adopts totally-enclosed; Oxygen that produces in the production process and plumbous simple substance can carry out second use after gathering-device is collected; And the waste liquid in the production process after treatment can be from new utilization; Realize the zero discharge of waste water, this process unit does not pollute environment, satisfy fully do not have waste water in the commercial production, three no standards of no waste gas, no waste sludge discharge.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is a structural representation of the present invention.
Embodiment
With embodiment the present invention is made further explanation below.
It is raw material that one one kinds of embodiment reclaim the lead plaster that technology plumbous in the waste and old lead accumulator processes with waste and old lead accumulator with the pulse power; Earlier lead plaster being carried out desulfurization handles; The solution that is configured to sodium nitrate and natrium nitrosum carries out 5～7 times filtration to lead plaster; Lead plaster is coated on the separators, in the electrolytic cell of a sealing, carries out, 3～7 fast separators that said electrolytic cell is set up are separated into 4～8 separate zones; Be provided with the sodium hydroxide solution as electrolyte in the said separate zone, the concentration of hydroxide ion is 15%～30% in the said sodium hydroxide solution; Said electrolytic cell upper end is provided with feed tube; The lower end is provided with drain pipe, is used for the concentration that electrolytic process supplemental hydrogen sodium oxide molybdena and water keep free hydroxide ion, and the aqueous slkali temperature in the feed tube is controlled at 10～15 ℃; Be provided with valve between said drain pipe and the said electrolytic cell; Said valve is provided with a screen pack at the back, through with said valve closing, the lead on the screen pack is taken off to realize recovery plumbous in the waste and old lead accumulator; Said separators is provided with grid; Said grid is for more firm being fixed on the dividing plate of waste and old lead accumulator; And make that whole cell reaction is more abundant, whole said electrolytic cell two ends are provided with screw rod, and said screw rod is for electrolytic cell is fixed; Prevent that electrolytic cell from making separators be out of shape because of being under pressure after putting into electrolyte; And being provided with rubber ring between the feed tube that connects of electrolytic cell or the drain pipe, said rubber ring is placed on and makes between feed tube that electrolytic cell connects or the drain pipe and when extruding, can stretch, and prevents leakage.
The current density of said electrolytic cell when electrolysis is 500～2000A/ ㎡, and electric current is provided by the pulse power, and the said pulse power is a square-wave pulse; Cycle is 2s, prevents to assemble a large amount of ions generation polarization because of long-time energising near the battery lead plate, and reaction temperature is a room temperature; Reaction needed 7～8 hours; Because reaction can produce heat, thus keep flow regime in the said electrolytic cell, too many for preventing the NaOH electrolyte in the electrolytic cell; Said drain pipe is 1.5～2:1 with the ratio of the flow of said feed tube, can make the said electrolyte in the electrolytic cell reach a specified height by control valve.
It is raw material that 21 kinds of embodiment reclaim the lead plaster that technology plumbous in the waste and old lead accumulator processes with waste and old lead accumulator with the pulse power, earlier lead plaster is carried out desulfurization and handles, and the solution that is configured to natrium nitrosum carries out 5～7 times filtration to lead plaster; The pulse power adopts the trigonometric function waveform, and the cycle is 4s; Use calcium hydroxide to be electrolyte in the electrolytic cell, the concentration of hydroxide ion is 15%～30% in the said calcium hydroxide, and other are identical with embodiment one.
31 kinds of embodiment reclaim technology plumbous in the waste and old lead accumulator with the pulse power, and the pulse power adopts triangular wave, and the cycle is 2s; Behind drain pipe, connect a container, liquids recovery after the reaction in the electrolytic cell in said container, is added aqua calcis in said container, and cooling, making has abundant hydroxide ion in the solution; Other are identical with embodiment one.
Claims (9)
1. one kind is reclaimed in the waste and old lead accumulator plumbous technology with the pulse power; Lead plaster with in the pretreated used and scrapped battery of process is a raw material; With the alkaline solution is electrolyte, and said lead plaster is carried out electrolytic treatments, it is characterized in that: said electrolytic treatments adopts pulse dc power; Said pulse dc power is connected with electrolytic cell; Be provided with 3～7 separators in the said electrolytic cell, said separators resolves into 4～8 isolated areas with said electrolytic cell, and each said isolated area forms little electrolysis field under the electric connection state; Said electrolytic cell upper end is provided with feed tube, and the lower end is provided with drain pipe.
2. a kind of technology that reclaims lead in the waste and old lead accumulator with the pulse power according to claim 1; It is characterized in that: current density is controlled to be 500～2000A/ ㎡ during said electrolytic treatments, and the reaction time of said lead plaster in said electrolytic cell is 7～8 hours.
3. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: hydroxide ion content is 15%～30% in the said alkaline solution.
4. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: the temperature of the said alkaline solution in the said feed tube is 10～15 ℃.
5. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: said separators is provided with grid.
6. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: said preliminary treatment is waste and old lead accumulator cream to be carried out desulfuration handle.
7. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: said drain pipe is provided with valve, is provided with screen pack behind the said valve.
8. according to claim 1ly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power, it is characterized in that: said electrolytic cell two ends are respectively arranged with screw rod.
9. describedly a kind ofly reclaim in the waste and old lead accumulator plumbous technology with the pulse power according to claim 1 or 8, it is characterized in that: said electrolytic cell and said feed tube or said drain pipe junction are provided with rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103952493A CN102420344A (en) | 2011-12-02 | 2011-12-02 | Technology for reclaiming lead from waste lead storage batteries by using pulse power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103952493A CN102420344A (en) | 2011-12-02 | 2011-12-02 | Technology for reclaiming lead from waste lead storage batteries by using pulse power supply |
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| Publication Number | Publication Date |
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| CN102420344A true CN102420344A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103952493A Pending CN102420344A (en) | 2011-12-02 | 2011-12-02 | Technology for reclaiming lead from waste lead storage batteries by using pulse power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630826A (en) * | 2015-01-29 | 2015-05-20 | 中南大学 | Technique for recovering tin from tin anode sludge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107007A (en) * | 1976-05-14 | 1978-08-15 | Gesellschaft Zur Forderung Der Forschung An Der Eidgenossischen Technischen Hochschule | Process for the recovery of lead from scrapped lead batteries |
| CN1038315A (en) * | 1988-06-08 | 1989-12-27 | 中国船舶工业总公司第七研究院第七一二研究所 | A kind of method that reclaims lead from scrap battery |
| CN1470675A (en) * | 2002-07-22 | 2004-01-28 | 佟永顺 | Waste lead battery lead recovery process |
| US20040168922A1 (en) * | 2002-09-12 | 2004-09-02 | Smedley Stuart I. | Discrete particle electrolyzer cathode and method of making same |
| CN101956214A (en) * | 2010-09-30 | 2011-01-26 | 北京化工大学 | Method for recycling secondary lead by electrolyzing alkaline leaded solution |
-
2011
- 2011-12-02 CN CN2011103952493A patent/CN102420344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107007A (en) * | 1976-05-14 | 1978-08-15 | Gesellschaft Zur Forderung Der Forschung An Der Eidgenossischen Technischen Hochschule | Process for the recovery of lead from scrapped lead batteries |
| CN1038315A (en) * | 1988-06-08 | 1989-12-27 | 中国船舶工业总公司第七研究院第七一二研究所 | A kind of method that reclaims lead from scrap battery |
| CN1470675A (en) * | 2002-07-22 | 2004-01-28 | 佟永顺 | Waste lead battery lead recovery process |
| US20040168922A1 (en) * | 2002-09-12 | 2004-09-02 | Smedley Stuart I. | Discrete particle electrolyzer cathode and method of making same |
| CN101956214A (en) * | 2010-09-30 | 2011-01-26 | 北京化工大学 | Method for recycling secondary lead by electrolyzing alkaline leaded solution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630826A (en) * | 2015-01-29 | 2015-05-20 | 中南大学 | Technique for recovering tin from tin anode sludge |
| CN104630826B (en) * | 2015-01-29 | 2017-02-22 | 中南大学 | Technique for recovering tin from tin anode sludge |
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Application publication date: 20120418 |