CN85203738U - Retrieving and disposing device for waste water containing noble metals - Google Patents
Retrieving and disposing device for waste water containing noble metals Download PDFInfo
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- CN85203738U CN85203738U CN 85203738 CN85203738U CN85203738U CN 85203738 U CN85203738 U CN 85203738U CN 85203738 CN85203738 CN 85203738 CN 85203738 U CN85203738 U CN 85203738U CN 85203738 U CN85203738 U CN 85203738U
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Abstract
The utility model discloses a retrieving and disposing device for waste water containing noble metals. The retrieving and disposing device for waste water containing noble metals is suitable for retrieving noble metals from waste water containing the noble metals, such as electrical plating rinse water, etc., in particular to retrieve gold from waste gold water containing the gold and explode cyanides. The device combines an electrolytic tank with an activated carbon adsorber and the absorbing machine of gaseous cyanides by driving members, control elements, and pipelines. The electrolytic tank adopts a single-layer rolling body-shaped cathode structure and a meshed anode structure which can be regulated by assemblage. The surface of the single-layer rolling body-shaped cathode structure is smooth, and the single-layer rolling body-shaped cathode structure can be convenient to load and unload. The electrolytic tank is provided with upper and lower water level sensors. Thereby, the high efficiency for retrieving the noble metals and exploding the cyanides is ensured, and meanwhile the utility model has the advantages of long anode life, the small ground occupying of a complete machine, etc.; the retrieving and disposing device for waste water containing noble metals is easy to peel away a sedimentary deposit for collecting the noble metals; the retrieving and disposing device for waste water containing noble metals can automatically control the wastewater flow rate of a processing period.
Description
The utility model is about reclaiming precious metal from contain precious metal waste water, particularly reclaim the gold and the recycling and processing device of elimination cyanide pollution from containing golden waste water.
Containing the precious metal waste water method that reclaims precious metal from electroplating rinse water, gold mining leach liquor etc. has a lot, the wastewater treatment higher for precious metal concentration, that other impurity are less, electrolytic process or make electrodip process use the most extensively.Since the seventies, abroad the low problem of the conventional electrolysis method rate of recovery that plate electrode, waste water are left standstill has been carried out many-sided research, has obtained some results new technologies.The U.S. is that 4151062 patent documentation has proposed to reclaim gold or silver-colored apparatus and method from the waste water of several thousand mg/litre precious metal concentrations in the patent No. of application in 1978, it still adopts the parallel plate type electrode, but waste water circulates, and with nozzle acceleration water eddy flow, thereby obtained recovering effect preferably, when for example gold or silver-colored concentration were mg/litre more than 300, the rate of recovery can reach 99%.But this technology does not relate to the problem of eliminating cyanide pollution, and precious metal generally all to be form with the complex compound of cyanogen in waste water exist.The patent No. of the U.S. is that metallic wastewater treatment unit and the method that 4159235 patent specification is announced adopted rotation cage negative electrode, place a large amount of free active conductive particles of energy in the cage, be in operation simultaneously and allow waste water these particles of flowing through, make the precious metal rate of recovery further bring up to 99.9%, certain broken cyanide effect is arranged on anode simultaneously.But its broken cyanide rate has only more than 50%, and the waste water after the recycling also will be with other ion exchange resin treatment.We know, when ion exchange resin can not re-use after a while, no matter taking burning method still was that desorption method is handled ion exchange resin, all can bring new pollution; Simultaneously, with the technology that this patent provides, peel off and collect the precious metal that is deposited on the particle in more complicated all on the technology and on the structure.
The purpose of this utility model is in order to overcome the deficiency of known technology, a kind of precious metal rate of recovery height to be provided, to peel off the recycling and processing device that reclaims easily, can thoroughly eliminate the cyanogen pollution.
At first, utility model combines electrolyzer and an active carbon adsorber and a dry cyaniding thing resorber, and the desorption product of active carbon adsorber and the liquid that has absorbed prussiate can return in the electrolyzer and recycle.Like this, just in a device, realized two circular treatment: one be the absorption of gac---desorption---desorption liquid returns electrolyzer and recycles, one is that absorption liquid absorbs---liquid after the absorption returns electrolyzer to carry out broken cyanide again and handles.Obviously, a device possesses this two kinds of circulations simultaneously, for improving noble metal recovery rate, avoid and eliminate the pollution of cyanogen to environment, user-friendly, very big advantage is arranged all.
Another important improvement of utility model is to have designed the electrolyzer internal structure different with known technology.Wherein, negative electrode is made ganoid revolution shape with the anti-corrosion electric conducting material, to help the collection of peeling off of noble metal loading layer; Anode with the anti-corrosion electric conducting net make can surround negative electrode and with the shape of negative electrode appearance similar, helping enlarging anode surface area and to keep the yin, yang two interpolar little equidistant gap of trying one's best, thereby promote the carrying out of the electrochemical process of galvanic deposit and broken cyanide; Upper and lower in electrolyzer inside also respectively has at least one water level sensor, with the wastewater flow rate of a recycling cycle turnover of automatic control electrolyzer, prevents that waste water from overflowing the works better that causes waste and pollute and guarantee above-mentioned resorber.
The ins and outs of above-mentioned two important improvement of utility model are: the active carbon adsorber that utility model comprises links together by waste water drive element, controlling elements and pipeline and electrolyzer; Dry cyaniding thing resorber links together by pipeline and the space more than the electrolyzer water level.Simultaneously, the electric tank cathode of utility model is the individual layer cylindrical shape of being made by stainless steel that an end seals, the other end has a shaft collar in the position identical with the tie-plate axial length.Tie-plate is connected with key with rotating shaft, but negative electrode is done connecting of conveniently assemble and disassemble with tie-plate.Anode is two semi-cylindrical shapeds that the titanium net of coated ruthenium is made, and retractable adjusting gear is arranged above.Such negative electrode and anode construction can regularly take out negative electrode, collect sedimentary precious metal to peel off, and change another negative electrode simultaneously to continue the broken cyanide operation.
Owing to take above-described combination to connect and structural improvement, the utility model reclaims that to contain gold concentration be that the rate of recovery of the electroplating wastewater of 1000 mg/litre reaches 99.99%, the gold that is deposited on the negative electrode is very easily peeled off collection, the water of discharging from device contains below cyanogen 0.5 mg/litre, reach discharging standards fully, also reach more than 5900 hours the anode life of easy loss in the electrolyzer simultaneously, thereby the machine of having realized once recycles the purpose with regard to the pollution of energy high efficiente callback precious metal and elimination cyanogen, and device lifetime is long, easy to operate, floor space is little, and economic benefit and social benefit are very remarkable.For example one-period is handled 20 liters of electroplating wastewaters that contain gold concentration 1000 mg/litre, with 9～10 hours time, nearly 20 grams of recyclable proof gold, deduction working hour expense and consumption expense, nearly 800 yuan of net income can obtain about 120,000 yuan of net earnings by 150 cycles of operation in 1 year, be 12 times of the equipment price, and eliminated the pollution of cyanogen.
Embodiment device of the present utility model as shown in the figure, wherein Fig. 1 is the overall structure synoptic diagram of device, Fig. 2 is the positive vertical sectional view of expression electrolyzer internal structure, Fig. 3 is the active carbon adsorber structure iron, Fig. 4 is expression anode and retractable adjusting gear figure thereof.
Be described in detail it below in conjunction with figure:
Drive element 1 is a magnetic drive pump, and it makes waste water fill into electrolyzer 12, and with groove in go up water level sensor 18 and do electric the connection so that when waste water fills groove and puts in place, stop magnetic drive pump work automatically.Drive element 3 is another magnetic drive pumps, it make waste water from electrolyzer flow to active carbon adsorber 6 and with groove in down water level sensor 20 do electric the connection so that in time stop magnetic drive pump work when basic stream is empty in groove at waste water.Controlling elements 2,5,7, respectively be a magnetic valve, wherein magnetic valve 2 is done electric the connection with following water level sensor, so that in time turn-off when basic stream is empty in groove at waste water; Go up water level sensor in magnetic valve 5 and the groove and do electric the connection, so that when waste water fills groove and puts in place, in time turn-off.Controlling elements 4 is check valves that link to each other with waste water source.Resorber 9 is that an inside fills the container that alkaline absorption solution, bottom have outlet pipe and valve, leads to into from the electrolyzer upper space that the pipe of resorber injects the absorption liquid, absorbs the dry cyaniding thing that produces in the recycling process at any time.When some cycles of operation, when the pH value of absorption liquid drops to predetermined value, this liquid is emitted, get back to and abolish prussiate in the electrolyzer and more renew liquid to continue to inhale cyanogen.The time relay 8 is used to control the working time of reclaiming precious metal and broken cyanide.Negative electrode rotating mechanism 10 comprises electric motor, speed reduction gearing, rotating shaft, bearing support etc., is used for sending to negative electrode with the contacted brush 11 of bearing.The tie-plate 19 of negative electrode can insert the opening end of negative electrode, have two bayonet locks on the periphery of tie-plate at least, the negative electrode opening end has with bayonet lock quantity and arranges L type breach corresponding, that can be injected by bayonet lock, and breach is in the direction of rotation when moving with negative electrode that turns on the negative electrode circumference; There are 6～12 the little slotted eyes equidistant and evenly distributed apart from the center central section, negative electrode blind end outside.When unloading negative electrode, insert turn negative electrode in the sulculus hole with special-purpose spanner, bayonet lock and breach are broken away from, negative electrode has just been unloaded down from tie-plate; Negative electrode is installed too, but spanner to screw direction opposite.Breach on the above-mentioned negative electrode opening end is in order to guarantee the tight contact of pin in service, mouth, to prevent that negative electrode from coming off in the direction of rotation when moving with negative electrode that turns on the negative electrode circumference.Two semicircular cylinder foldings of anode 14 are formed by regulating bolt 22, spring 23,24,2 25,2 long union levers 26 of short union lever of base and supporting lever 27 with the retractable adjusting gear 15 of regulating opening width, also be equipped with on two semicircular cylinders of anodic and connect electroplax 13.Each union lever all is mobilizable hinged, has only an end of long union lever to fixedly connected with anode.Base is detachably fixedlyed connected with supporting lever.
The operating process of present embodiment device is to be undertaken by the button on the operation board of device top basically:
(1) advances waste water.Open magnetic valve 5, start magnetic drive pump 1, waste water is filled in the electrolyzer 12, when water level arrives when going up water level sensor 18, pump quits work, and magnetic valve turn-offs.
(2) electrolytic recovery.Starter cathode rotating mechanism 10 is opened magnetic valve 7, ejector priming 1, and to required time (3～10 hours), anode connects electroplax 13 and negative electrode brush 11 send 1～6 volt direct current according to rly. between the waste strength timing 8.When having arrived setting up time, pump 1 quits work automatically.Pressing a button makes the negative electrode stall, opens the sealing cover 17 above the electrolyzer, and two semicircular cylinders are opened, and taking-up anode and retractable adjusting gear thereof, inject the terminal little slotted eye of cathode with special-purpose spanner and reverse, cathode is taken off from tie-plate 19, peel off sedimentary precious metal.
(3) broken cyanide.Change another not with the negative electrode of noble metal loading layer, put anode and retractable adjusting gear thereof, and regulate gap between the positive and negative utmost points by retractable adjusting gear 15 according to cyanide ion concentration, cover the electrolyzer sealing cover, ejector priming 1, mix up the time relay (1～4 hour), strengthen the process that electric current carries out thorough broken cyanide.When having arrived setting up time, pump 1 quits work automatically.Stop negative electrode and rotate, broken cyanide finishes.
(4) absorption.Open magnetic valve 2, start magnetic drive pump 3, make gac 21 absorption remaining precious metal and the prussiate of waste water in active carbon adsorber, the water after the absorption is discharged by water port, and prussiate and PH in the discharge water reach discharging standards.When water level drops to water level sensor 20 when following, pump 3 quits work automatically, and magnetic valve 2 cuts out automatically.
(5) desorption.When the water of discharging contains precious metal and reaches 0.1 mg/litre, use the operation same substantially with adsorption process, gac is carried out the normal temperature and pressure desorption, the desorption product returns in the electrolyzer and recycles.
The dry cyaniding thing that produces in whole process is absorbed by resorber 9, when the absorption liquid pH value drops to predetermined value, waste liquid is got back in the electrolyzer handled, and changes new absorption liquid and continues to inhale cyanogen.
The utility model can be made the product of different specification size according to the size of wastewater flow rate, and pipeline and Circuits System also can be done different arrangements as required.Above embodiment device is the product of 20 liters of specifications of primary treatment, is specially adapted to micromidi electric plating corporation.
Claims (10)
1, a kind ofly from contain precious metal waste water, reclaims precious metal, particularly from contain golden waste water, reclaim gold and abolish the recycling and processing device of prussiate, comprise mainly that wherein electrolyzer 12, negative electrode rotate machine thing 10, make waste water mobile drive element 1, is characterized in that this device also comprises:
(1), active carbon adsorber 6;
(2), resorber 9 that is absorbed in the dry cyaniding thing that produces in the wastewater treatment process.
2,, it is characterized in that active carbon adsorber 6 links together by making waste water mobile drive element 3, controlling elements 2 and pipeline and bottom of electrolytic tank according to the said device of claim 1; Resorber 9 and the above space pipeline connection of the interior water level of electrolyzer.
3, according to the said device of claim 2, it is characterized in that drive element 3 is magnetic drive pumps, controlling elements 2 is magnetic valves.
4, according to claim 1,2,3 said devices, it is characterized in that resorber 9 is that an inside fills alkaline absorption solution, the container of drain pipe and valve is arranged at the bottom.
5, according to claim 1,2 said devices, it is characterized in that the negative electrode 16 usefulness anti-corrosion electric conducting materials in the said electrolyzer 12 make ganoid revolution shape, anode 14 usefulness anti-corrosion electric conducting nets make can surround negative electrode with the negative electrode similar shape, the upper and lower in electrolyzer respectively has at least one water level sensor 18,20.
6,, it is characterized in that negative electrode 16 is to make the individual layer cylindrical shape that an end seals, the other end has a shaft collar in certain depth by stainless steel according to the said device of claim 5.
7,, it is characterized in that having in the negative electrode rotating shaft tie-plate 19 to be connected with key, but negative electrode is the structure of conveniently assemble and disassemble with connecting of tie-plate with rotating shaft according to the said device of claim 6.
8, according to the said device of claim 7, it is characterized in that tie-plate 19 can insert the negative electrode opening end, have two bayonet locks on the periphery of tie-plate at least, the negative electrode opening end has with bayonet lock quantity and arranges L type breach corresponding, that can be injected by bayonet lock, breach on the negative electrode circumference turn to the negative electrode direction of rotation; There are 6～12 the little slotted eyes equidistant and evenly distributed apart from the center central section, negative electrode blind end outside.
9,, it is characterized in that anode 14 is two semi-cylindrical shapeds being made by the titanium net of coated ruthenium, has retractable adjusting gear 15 above it according to the said device of claim 5.
10,, it is characterized in that retractable adjusting gear 15 forms by regulating bolt 22, spring 23, base 24, two short union levers 25, two long union levers 26 and supporting lever 27 according to the said device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203738 CN85203738U (en) | 1985-09-10 | 1985-09-10 | Retrieving and disposing device for waste water containing noble metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203738 CN85203738U (en) | 1985-09-10 | 1985-09-10 | Retrieving and disposing device for waste water containing noble metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85203738U true CN85203738U (en) | 1986-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85203738 Expired - Lifetime CN85203738U (en) | 1985-09-10 | 1985-09-10 | Retrieving and disposing device for waste water containing noble metals |
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| CN (1) | CN85203738U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220501B (en) * | 2007-01-12 | 2010-05-19 | 金益鼎企业股份有限公司 | Precious metal containing matter recycling system and method |
| CN103874787A (en) * | 2011-10-04 | 2014-06-18 | 同和环保再生事业有限公司 | Method for recovering valuable metal from liquid containing valuable metal, and electrolytic recovery device |
| CN107651733A (en) * | 2016-07-26 | 2018-02-02 | 中国科学院生态环境研究中心 | A kind of method that rotating cathode strengthens photoelectrocatalysioxidization oxidization processing complex state heavy metal wastewater thereby and negative electrode recovery heavy metal |
| CN110818009A (en) * | 2019-11-26 | 2020-02-21 | 衡阳市晋宏精细化工有限公司 | Method for treating potassium aurous cyanide production wastewater based on activated carbon adsorption |
| CN111778403A (en) * | 2020-07-01 | 2020-10-16 | 江西三和金业有限公司 | Method for recovering gold from gold desorption electrolysis waste liquid |
-
1985
- 1985-09-10 CN CN 85203738 patent/CN85203738U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220501B (en) * | 2007-01-12 | 2010-05-19 | 金益鼎企业股份有限公司 | Precious metal containing matter recycling system and method |
| CN103874787A (en) * | 2011-10-04 | 2014-06-18 | 同和环保再生事业有限公司 | Method for recovering valuable metal from liquid containing valuable metal, and electrolytic recovery device |
| CN107651733A (en) * | 2016-07-26 | 2018-02-02 | 中国科学院生态环境研究中心 | A kind of method that rotating cathode strengthens photoelectrocatalysioxidization oxidization processing complex state heavy metal wastewater thereby and negative electrode recovery heavy metal |
| CN110818009A (en) * | 2019-11-26 | 2020-02-21 | 衡阳市晋宏精细化工有限公司 | Method for treating potassium aurous cyanide production wastewater based on activated carbon adsorption |
| CN111778403A (en) * | 2020-07-01 | 2020-10-16 | 江西三和金业有限公司 | Method for recovering gold from gold desorption electrolysis waste liquid |
| CN111778403B (en) * | 2020-07-01 | 2021-04-13 | 江西三和金业有限公司 | Method for recovering gold from gold desorption electrolysis waste liquid |
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