CN208501122U - A kind of recyclable device of the plating containing golden waste water - Google Patents
A kind of recyclable device of the plating containing golden waste water Download PDFInfo
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- CN208501122U CN208501122U CN201820918879.1U CN201820918879U CN208501122U CN 208501122 U CN208501122 U CN 208501122U CN 201820918879 U CN201820918879 U CN 201820918879U CN 208501122 U CN208501122 U CN 208501122U
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Abstract
The utility model relates to a kind of recyclable device of the plating containing golden waste water, and by nested setting carbon-fiber cathode column close in cathode chamber, the specific surface area of carbon-fiber cathode column is up to 1000m2/ g promotes electrodeposition efficiency；And it is closely nested in cathode chamber by the way that carbon-fiber cathode column is arranged, so that solution flows uniformly through electrode, reduces the influence of concentration polarization；The cationic membrane being arranged between anode chamber and cathode chamber makes Au (CN)2 ‑It can only be flowed in cathode chamber, accelerate cathode reaction, improve electrodeposition efficiency；The mixed solution of sodium sulfite and sodium hydroxide is added as anolyte in anode chamber, in electrolytic deposition process, sodium sulfite is oxidized production sodium sulphate, will not generate gas, good operational environment；Device described in the utility model detects gold content in waste liquid and is reduced to 0.1ppm, electrodeposition is high-efficient, and the electrodeposition period is short after 7 days electrodeposition operate.
Description
Technical field
The utility model belongs to technical field of waste water processing, and in particular to a kind of recyclable device of the plating containing golden waste water.
Background technique
Electroplating wastewater is mainly derived from electroplating industry production process, cleans plating piece surface and a large amount of waste water for generating.It is right
In cyanide electroplating containing golden waste water, usual gold content about 0.2-0.5mg/L, and the Cymag containing severe toxicity, conventional process mode
Zinc replacing process is generallyd use, obtains gold mud with zinc dust precipitation.However the main problem of the above method is to need to be added largely
Zinc powder, the gold mud purity cemented out are low, it is also necessary to which nitric acid removes extra zinc powder, and generates a large amount of zinc-containing water.
Chinese patent literature CN103320813A discloses a kind of eddy flow electrodeposition slot device, including cathode tube, anode canister and
Insulated enclosure pipe, the cathode tube and anode canister coaxial arrangement, including cathode tube, anode canister outside, insulated enclosure pipe and anode
Cylinder presents lower integrated；Inlet is arranged below in the anode canister, is equipped with liquid outlet, the inlet and liquid outlet point column above
In the two sides of anode canister；Overflow port and exhaust outlet are equipped on the insulated enclosure pipe, the overflow port is under, and exhaust outlet is upper；
Electric effusion enters eddy flow electrodeposition, mesh in the Winning cell between cathode tube periphery wall and anode canister internal perisporium from the inlet of anode canister
Mark metal product deposition is attached to the outer wall of cathode tube.Chinese patent literature CN103361673A discloses a kind of titanium cylinder electrolysis
Machine, including anode perforation titanium tube, cathode titanium cylinder, the liquid waste tank containing gold, the anode perforation titanium tube, cathode titanium cylinder constitute electrolysis
Slot, electrolytic cell, to containing golden liquid waste tank, pass through the sun of piping connection to electrolytic cell containing golden liquid waste tank bottom by piping connection
Pole perforation titanium tube；Circulating pump, control valve, flow are sequentially ingressed on the pipeline of the electrolytic cell containing the connection of golden liquid waste tank bottom
Meter；The cathode titanium cylinder is titanium matter drum-shaped structure, and center is equipped with the anode perforation titanium tube of titanium matter, anode in cathode titanium cylinder
Titanium tube of perforating is the circular configuration that hollow and side wall is equipped with perforation, and cathode titanium cylinder top passes through lidstock.
However, above two electrolysis unit, when for being electroplated containing golden wastewater treatment, electrolytic deposition process Anodic can all generate gas
Body, operating environment is poor, and the requirement of step recycling is still not achieved in electrodeposition efficiency.
Utility model content
In order to solve the above problems existing in the present technology, the utility model provides a kind of electrolytic deposition process and does not generate gas
Recyclable device of the plating containing golden waste water that body, electrodeposition are high-efficient, the electrodeposition period is short.
The technology employed by the present utility model is
A kind of recyclable device of the plating containing golden waste water, including electrolytic cell and the liquid waste tank containing gold, the electrolytic cell include electricity
Source, cathode chamber, anode chamber and the cationic membrane between anode chamber and cathode chamber, close nested setting carbon in the cathode chamber
Fiber cathode column, anode plate is arranged in the anode chamber, and the bottom and top containing golden liquid waste tank pass through pipeline respectively and connect
The bottom and top of electric tank cathode room are connected to, catholyte is set on the pipeline of the alloy waste fluid reservoir bottom connection electrolytic cell
Circulating pump.
The carbon-fiber cathode column is honeycomb carbon-fiber cathode column, and the honeycomb carbon-fiber cathode column is along central axis
Direction is through the multiple honeycomb holes of setting.
The draw ratio of the honeycomb hole is 180:1-220:1；
The diameter ratio of the aperture of the honeycomb hole and the carbon-fiber cathode column is 1:100-1:50.
The cathode chamber is cylindrical cathode room.
The honeycomb carbon-fiber cathode column and the cylindrical cathode room are coaxial arrangement.
The cationic membrane is sulfonic acid ion exchange resin film.
The anode plate is stainless steel material.
The anode plate is arranged in parallel four.
The anode chamber is cylindric anode chamber.
The utility model has the following beneficial effects:
Recyclable device of the plating containing golden waste water described in the utility model passes through nested setting carbon fiber close in cathode chamber
Cathode column is tieed up, the specific surface area of carbon-fiber cathode column is up to 1000m2/ g uses titanium, stainless steel as yin compared to the prior art
Pole material substantially increases the specific surface area of cathode, promotes electrodeposition efficiency；Furthermore carbon-fiber cathode column has preferable inhale
Attached effect, enables bronze to be preferably deposited on cathode；It is closely nested in cathode chamber by the way that carbon-fiber cathode column is arranged,
Under the pressure of circulating pump pushes, solution is flowed along honeycomb ducts, is improved contact effect of the cathode with solution, is also improved electrodeposition
Efficiency；And it is closely nested in cathode chamber by the way that carbon-fiber cathode column is arranged, so that solution flows uniformly through electrode, reduces concentration difference
Polarized influence.
The cationic membrane that the utility model is arranged between anode chamber and cathode chamber only allows Na+、H+Equal cations pass through,
Various negatively charged anions, such as Au (CN)2 -、CN-、OH-、SO3 2-、SO4 2-Etc. can not be by diaphragm, thus Au (CN)2 -It can only
It in cathode circulating inside, cannot flow down in the function of current to anode, make Au (CN)2 -It can only be flowed in cathode chamber, accelerate yin
Pole reaction, improves electrodeposition efficiency.
In the anode chamber of the utility model, by the way that the mixed solution of sodium sulfite and sodium hydroxide is added as anode electrolysis
Liquid, in electrolytic deposition process, sodium sulfite is oxidized production sodium sulphate, will not generate gas, effectively avoids in the prior art using hydrogen
When sodium oxide molybdena, sodium chloride are as anode electric effusion, hydroxyl, which is oxidized, has oxygen evolution system, and gas would generally carry one secretly
A little solution, so that operating environment is deteriorated.
Device described in the utility model detects gold content in waste liquid and is reduced to 0.1ppm after 7 days electrodeposition operate；And show
There is the eddy flow electrowinning plant in technology, by 10 days electrodeposition, GOLD FROM PLATING SOLUTION content dropped to 10ppm or so；And board-like electrodeposition passes through
10 days electrodeposition, GOLD FROM PLATING SOLUTION content can only drop to 50ppm, it is seen then that the electrodeposition of the utility model is high-efficient, proposes golden efficiency and substantially mentions
Height, operation cycle also significantly shorten.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is recyclable device of the plating containing golden waste water that the utility model embodiment 1 provides；
In figure: 1- contains golden liquid waste tank, 2- catholyte circulating pump, 3- cathode chamber, 4- honeycomb carbon-fiber cathode column, 5- electricity
Source, 6- cationic membrane, the anode chamber 7-, 8- anode plate.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
The present embodiment provides a kind of recyclable device of the plating containing golden waste water, as shown in Figure 1, including electrolytic cell and the waste liquid containing gold
Storage tank 1, the electrolytic cell include power supply 5, cathode chamber 3, anode chamber 7 and the cation between anode chamber 7 and cathode chamber 3
Film, cationic membrane described in the present embodiment are sulfonic acid ion exchange resin film 6.
Close nested setting honeycomb carbon-fiber cathode column 4, the honeycomb carbon-fiber cathode column 4 in the cathode chamber 3
Along central axial direction in the multiple honeycomb holes of setting, the present embodiment, the cathode chamber 3 is cylindrical cathode room, the bee
Nest shape carbon-fiber cathode column 4 and the cylindrical cathode room are coaxial arrangement；The draw ratio of the honeycomb hole is 200:1, described
The diameter ratio of the aperture of honeycomb hole and the carbon-fiber cathode column is 3:200.
The anode chamber 7 is cylindric anode chamber, and four anode plates 8, the sun is arranged in parallel in setting in the anode chamber 7
Pole plate 8 is stainless steel material, and the bottom and top containing golden liquid waste tank 1 pass through piping connection to electric tank cathode room respectively
3 bottom and top, the alloy waste fluid reservoir bottom, which connects, is arranged catholyte circulating pump 2 on the pipeline of electrolytic cell.
Further, the present embodiment provides a kind of recovery process based on the plating of described device containing golden waste water, including it is as follows
Step:
(S1) under the catholyte circulating pump 2 effect, plating is containing golden waste water described containing in golden liquid waste tank 1 and cathode
It is recycled between room 3；After opening power supply 5, following cathode reaction occurs in the honeycomb carbon-fiber cathode column 4 of the cathode chamber 3:
Au(CN)2 -+ e=Au+2CN-
(S2) mixed solution of sodium sulfite and sodium hydroxide, the sodium sulfite and hydrogen-oxygen are added in the anode chamber 7
In the mixed solution for changing sodium, the mass fraction of sodium sulfite is 10%, and the mass fraction of sodium hydroxide is 1%；In the anode
Following anode reaction occurs for the anode plate 8 of room 7:
SO3 2-+2OH-- 2e=SO4 2-+H2O
(S3) it after 7 days electrodeposition operate, detects gold content in waste liquid and is reduced to 0.1ppm.After the completion of electrodeposition, yin is drained
Waste liquid in pole room 3 opens cathode can, takes out the honeycomb carbon-fiber cathode column 4, be put into chloroazotic acid and leach bronze, it
The purifying gold from chloroazotic acid afterwards.After the honeycomb carbon-fiber cathode column 4 cleans up, returns and use.Solution in anode chamber 7
It is replaced after the completion of each electrodeposition.
Embodiment 2
It is described the present embodiment provides a kind of recyclable device of the plating containing golden waste water, including electrolytic cell and the liquid waste tank 1 containing gold
Electrolytic cell includes power supply 5, cathode chamber 3, anode chamber 7 and the sulfonic acid type cation exchange tree between anode chamber 7 and cathode chamber 3
Adipose membrane 6.
Close nested setting honeycomb carbon-fiber cathode column 4, the honeycomb carbon-fiber cathode column 4 in the cathode chamber 3
Along central axial direction in the multiple honeycomb holes of setting, the present embodiment, the cathode chamber 3 is cylindrical cathode room, the bee
Nest shape carbon-fiber cathode column 4 and the cylindrical cathode room are coaxial arrangement；The draw ratio of the honeycomb hole is 180:1, described
The diameter ratio of the aperture of honeycomb hole and the carbon-fiber cathode column is 1:100.
The anode chamber 7 is cylindric anode chamber, and four anode plates 8, the sun is arranged in parallel in setting in the anode chamber 7
Pole plate 8 is stainless steel material, and the bottom and top containing golden liquid waste tank 1 pass through piping connection to electric tank cathode room respectively
3 bottom and top, the alloy waste fluid reservoir bottom, which connects, is arranged catholyte circulating pump 2 on the pipeline of electrolytic cell.
Further, the present embodiment provides a kind of recovery process based on the plating of described device containing golden waste water, including it is as follows
Step:
(S1) under the catholyte circulating pump 2 effect, plating is containing golden waste water described containing in golden liquid waste tank 1 and cathode
It is recycled between room 3；After opening power supply 5, following cathode reaction occurs in the honeycomb carbon-fiber cathode column 4 of the cathode chamber 3:
Au(CN)2 -+ e=Au+2CN-
(S2) mixed solution of sodium sulfite and sodium hydroxide, the sodium sulfite and hydrogen-oxygen are added in the anode chamber 7
In the mixed solution for changing sodium, the mass fraction of sodium sulfite is 8%, and the mass fraction of sodium hydroxide is 0.5%；In the anode
Following anode reaction occurs for the anode plate 8 of room 7:
SO3 2-+2OH-- 2e=SO4 2-+H2O
(S3) it after 7 days electrodeposition operate, detects gold content in waste liquid and is reduced to 0.11ppm.After the completion of electrodeposition, yin is drained
Waste liquid in pole room 3 opens cathode can, takes out the honeycomb carbon-fiber cathode column 4, be put into chloroazotic acid and leach bronze, it
The purifying gold from chloroazotic acid afterwards.After the honeycomb carbon-fiber cathode column 4 cleans up, returns and use.Solution in anode chamber 7
It is replaced after the completion of each electrodeposition.
Embodiment 3
It is described the present embodiment provides a kind of recyclable device of the plating containing golden waste water, including electrolytic cell and the liquid waste tank 1 containing gold
Electrolytic cell includes power supply 5, cathode chamber 3, anode chamber 7 and the sulfonic acid type cation exchange tree between anode chamber 7 and cathode chamber 3
Adipose membrane 6.
Close nested setting honeycomb carbon-fiber cathode column 4, the honeycomb carbon-fiber cathode column 4 in the cathode chamber 3
Along central axial direction in the multiple honeycomb holes of setting, the present embodiment, the cathode chamber 3 is cylindrical cathode room, the bee
Nest shape carbon-fiber cathode column 4 and the cylindrical cathode room are coaxial arrangement；The draw ratio of the honeycomb hole is 220:1, described
The diameter ratio of the aperture of honeycomb hole and the carbon-fiber cathode column is 1:50.
The anode chamber 7 is cylindric anode chamber, and four anode plates 8, the sun is arranged in parallel in setting in the anode chamber 7
Pole plate 8 is stainless steel material, and the bottom and top containing golden liquid waste tank 1 pass through piping connection to electric tank cathode room respectively
3 bottom and top, the alloy waste fluid reservoir bottom, which connects, is arranged catholyte circulating pump 2 on the pipeline of electrolytic cell.
Further, the present embodiment provides a kind of recovery process based on the plating of described device containing golden waste water, including it is as follows
Step:
(S1) under the catholyte circulating pump 2 effect, plating is containing golden waste water described containing in golden liquid waste tank 1 and cathode
It is recycled between room 3；After opening power supply 5, following cathode reaction occurs in the honeycomb carbon-fiber cathode column 4 of the cathode chamber 3:
Au(CN)2 -+ e=Au+2CN-
(S2) mixed solution of sodium sulfite and sodium hydroxide, the sodium sulfite and hydrogen-oxygen are added in the anode chamber 7
In the mixed solution for changing sodium, the mass fraction of sodium sulfite is 8-12%, and the mass fraction of sodium hydroxide is 1.5%；Described
Following anode reaction occurs for the anode plate 8 of anode chamber 7:
SO3 2-+2OH-- 2e=SO4 2-+H2O
(S3) it after 7 days electrodeposition operate, detects gold content in waste liquid and is reduced to 0.12ppm.After the completion of electrodeposition, yin is drained
Waste liquid in pole room 3 opens cathode can, takes out the honeycomb carbon-fiber cathode column 4, be put into chloroazotic acid and leach bronze, it
The purifying gold from chloroazotic acid afterwards.After the honeycomb carbon-fiber cathode column 4 cleans up, returns and use.Solution in anode chamber 7
It is replaced after the completion of each electrodeposition.
Comparative example 1
This comparative example provide it is a kind of using eddy flow Winning cell handle plating the method containing golden waste water, the eddy flow Winning cell
Structure includes cathode tube, anode canister and insulated enclosure pipe, and cathode tube and anode canister are coaxially disposed, and including cathode tube, anode canister exists
Outside, insulated enclosure pipe and anode canister are at upper and lower integrated；Inlet is arranged below in anode canister, is equipped with liquid outlet above, it should be into
Liquid mouth and liquid outlet are listed in the two sides of anode canister respectively；Overflow port and exhaust outlet, the overflow port are equipped on the insulated enclosure pipe
Under, exhaust outlet is upper；Electric effusion enters the electricity between cathode tube periphery wall and anode canister internal perisporium from the inlet of anode canister
Eddy flow electrodeposition in product slot, metal target product deposit the outer wall for being attached to cathode tube.
The concrete operations for carrying out eddy flow electrodeposition are as follows:
Under normal temperature conditions, using plating waste water containing gold as electric effusion, which inputs eddy flow Winning cell from inlet
Middle progress continuous cyclone electrodeposition, electric effusion is continuous in the space between cathode tube and anode canister, circulates, electric effusion circulation
Flow is 10m3/ h, cathode-current density 1000A/m3, golden to deposit the outer wall for being attached to cathode tube.By 10 days electrodeposition, in solution
Gold content drops to 11ppm.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of recyclable device of the plating containing golden waste water, which is characterized in that described including electrolytic cell and containing golden liquid waste tank (1)
Electrolytic cell includes power supply (5), cathode chamber (3), anode chamber (7) and the cation between anode chamber (7) and cathode chamber (3)
Anode plate (8) are arranged in the anode chamber (7) in film, close nested setting carbon-fiber cathode column in the cathode chamber (3), described
Bottom and top containing golden liquid waste tank (1) pass through piping connection to the bottom and top of electric tank cathode room (3) respectively, described
Catholyte circulating pump (2) are set on the pipeline of the electrolytic cell containing the connection of golden liquid waste tank bottom.
2. recyclable device of the plating containing golden waste water according to claim 1, which is characterized in that the carbon-fiber cathode column is
Honeycomb carbon-fiber cathode column (4), the honeycomb carbon-fiber cathode column (4) is along central axial direction through the multiple honeycombs of setting
Hole.
3. recyclable device of the plating containing golden waste water according to claim 2, which is characterized in that the draw ratio of the honeycomb hole
For 180:1-220:1.
4. recyclable device of the plating containing golden waste water according to claim 3, which is characterized in that the aperture of the honeycomb hole with
The diameter ratio of the carbon-fiber cathode column is 1:100-1:50.
5. recyclable device of the plating containing golden waste water according to claim 2, which is characterized in that the cathode chamber (3) is circle
Cylindrical cathode room.
6. recyclable device of the plating containing golden waste water according to claim 5, which is characterized in that the honeycomb carbon fiber yin
Pole (4) and the cylindrical cathode room are coaxial arrangement.
7. recyclable device of the plating containing golden waste water according to claim 1, which is characterized in that the cationic membrane is sulfonic acid
Type cation exchange resin membrane (6).
8. recyclable device of the plating containing golden waste water according to claim 1, which is characterized in that the anode plate is stainless steel
Material.
9. recyclable device of the plating containing golden waste water according to claim 1, which is characterized in that the anode plate (8) is parallel
Setting four.
10. recyclable device of the plating containing golden waste water according to claim 1, which is characterized in that the anode chamber (7) is circle
Column anode room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918879.1U CN208501122U (en) | 2018-06-13 | 2018-06-13 | A kind of recyclable device of the plating containing golden waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918879.1U CN208501122U (en) | 2018-06-13 | 2018-06-13 | A kind of recyclable device of the plating containing golden waste water |
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| CN208501122U true CN208501122U (en) | 2019-02-15 |
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| CN201820918879.1U Active CN208501122U (en) | 2018-06-13 | 2018-06-13 | A kind of recyclable device of the plating containing golden waste water |
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| CN (1) | CN208501122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055983A (en) * | 2018-06-13 | 2018-12-21 | 珠海格力电器股份有限公司 | A kind of recovery process and device of the plating containing golden waste water |
| CN113652554A (en) * | 2021-07-16 | 2021-11-16 | 武汉理工大学 | Method for recovering noble metal in solution based on capacitive deionization technology |
-
2018
- 2018-06-13 CN CN201820918879.1U patent/CN208501122U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055983A (en) * | 2018-06-13 | 2018-12-21 | 珠海格力电器股份有限公司 | A kind of recovery process and device of the plating containing golden waste water |
| CN109055983B (en) * | 2018-06-13 | 2023-08-22 | 珠海格力电器股份有限公司 | Recovery process and device for electroplating gold-containing wastewater |
| CN113652554A (en) * | 2021-07-16 | 2021-11-16 | 武汉理工大学 | Method for recovering noble metal in solution based on capacitive deionization technology |
| CN113652554B (en) * | 2021-07-16 | 2022-12-27 | 武汉理工大学 | Method for recovering noble metal in solution based on capacitive deionization technology |
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