CN113445056A - Environment-friendly cleaning method for electrolytic copper - Google Patents
Environment-friendly cleaning method for electrolytic copper Download PDFInfo
- Publication number
- CN113445056A CN113445056A CN202110616178.9A CN202110616178A CN113445056A CN 113445056 A CN113445056 A CN 113445056A CN 202110616178 A CN202110616178 A CN 202110616178A CN 113445056 A CN113445056 A CN 113445056A
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- Prior art keywords
- cleaning
- electrolytic copper
- spraying
- environment
- friendly
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/10—Other heavy metals
- C23G1/103—Other heavy metals copper or alloys of copper
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an electrolytic copper environment-friendly cleaning method, which comprises the following steps: the spraying device is arranged at the upper part of the cleaning tank, and alkaline cleaning solution spraying cleaning treatment is carried out on the electrolytic copper on the conveying device under the action of gravity and spraying pressure; step two: a turbine device driven by a motor is arranged in the cleaning and washing tank to enable the acidic cleaning solution to be in a continuous rolling state so as to clean the electrolytic copper after the alkaline cleaning again; step three: the method for electrolyzing copper can clean various grease and dust adhered to the surface of the electrolytic copper, and can not scratch the surface of the electrolytic copper, and the method can filter the reactant through the porous nano ceramic filtering device after the cleaning is finished, so as to realize the environment-friendly and harmless treatment of the cleaning solution.
Description
Technical Field
The invention relates to the field of electrolytic copper environment-friendly cleaning, in particular to an electrolytic copper environment-friendly cleaning method.
Background
Crude copper (containing 99% copper) is made into a thick plate in advance to be used as an anode, pure copper is made into a thin plate to be used as a cathode, and a mixed solution of sulfuric acid and copper sulfate is used as an electrolyte. After the energization, copper is dissolved from the anode into copper ions (Cu) and moves to the cathode, and the copper ions reach the cathode to obtain electrons, thereby depositing electrolytic copper on the cathode. Impurities in the blister copper, such as iron and zinc, which are more reactive than copper, dissolve as ions along with the copper. Since these ions and copper ions are relatively difficult to be separated out, the separation of these ions from the cathode can be avoided by appropriately adjusting the potential difference during electrolysis. Impurities such as gold and silver, which are less noble than copper, deposit on the bottom of the electrolytic cell. The copper plate produced in the way is called as electrolytic copper, has extremely high quality, and can be used for manufacturing electronic and electrical products, such as electric wires, cables, air conditioning rows, automobile radiating water tanks and the like. In the process of transportation and recovery of electrolytic copper, various grease and dust can adhere to the electrolytic copper, and meanwhile, an oxide layer is generated on the surface of the electrolytic copper due to air oxidation, and the electrolytic copper needs to be cleaned before processing. At present, the copper oxide layer on the surface of the electrolytic copper is generally removed by manually polishing the electrolytic copper by using sand paper or an automatic polishing device, and the efficiency is high, but various scratches or pits are generated on the electrolytic copper surface product. Meanwhile, except for pretreatment such as polishing, the surface of the electrolytic copper is generally cleaned for the second time by using a solution to remove grease or dust attached to the surface, and then the cleaned electrolytic copper is dried by using a hot air or far infrared drying device, but the cleaning effect is not good. Meanwhile, the cleaning liquid after cleaning is discharged after being treated for many times, so that a certain degree of environmental protection risk is caused. Therefore, research and development of the electrolytic copper environment-friendly cleaning technology are necessary.
With the development of economic society, electrolytic copper is widely applied to various industries such as electronics and electricity by virtue of the characteristics of excellent conductivity and the like, various grease and dust can be adhered to the electrolytic copper in the transportation and recovery processes, and an oxide layer can be generated on the surface of the electrolytic copper due to air oxidation.
Disclosure of Invention
The invention aims to provide an environment-friendly electrolytic copper cleaning method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an electrolytic copper environment-friendly cleaning method comprises the following steps:
the method comprises the following steps: the spraying device is arranged at the upper part of the cleaning tank, and alkaline cleaning solution spraying cleaning treatment is carried out on the electrolytic copper on the conveying device under the action of gravity and spraying pressure;
step two: a turbine device driven by a motor is arranged in the cleaning and washing tank to enable the acidic cleaning solution to be in a continuous rolling state so as to clean the electrolytic copper after the alkaline cleaning again;
step three: the acidic and alkaline neutralization solutions are respectively arranged to respectively perform reaction treatment on the solution after electrolytic copper cleaning, and reactants are filtered by a porous nano ceramic filtering device, so that the environmental-friendly and harmless treatment of the cleaning solution is realized.
Preferably, the spraying speed of the spraying device in the first step is 1.5m/s, so as to effectively remove grease on the electrolytic copper.
Preferably, the rotating speed of the motor is controlled to be 900r/min-1200r/min, so that the oxide layer on the surface of the electrolytic copper can be removed efficiently.
Preferably, the spraying system of the spraying device is composed of three parts, wherein the first part is used for cleaning the surface of the electrolytic copper through gravity and spraying pressure, on the other hand, in the cleaning process, the electrolytic copper is rolled, so that the surface of the electrolytic copper can be sufficiently cleaned, after the water washing is finished, the second part is used for cleaning powder, and the third part is used for circularly collecting water and powder.
Preferably, the acid and alkaline neutralization solution adjusts the pH value of the solution after the electrolytic copper is cleaned to 6.9-7.2.
Preferably, after the action of gravity and spraying pressure in the step one, the surface of the electrolytic copper needs to be dried by a dryer.
Preferably, the neutralization reactant is filtered in a vertical flow mode, wherein ascending expansion neutralization cleaning wastewater moves from bottom to top, the filter material is in a suspension state, the filter layer expands, collision friction occurs, and precipitates are difficult to cover the surface of the filter material, so that the acid-containing concentration can be properly increased, generated carbon dioxide is easily discharged from the top, a filter bed cannot be blocked, and then the reactant is filtered by the cleaned wastewater through a porous nano ceramic filter device, so that the environment-friendly and harmless treatment of the cleaning solution is realized.
With the development of economic society, electrolytic copper is widely applied to various industries such as electronics, electricity and the like due to the characteristics of excellent conductivity and the like, various grease and dust can be adhered to the electrolytic copper in the transportation and recovery processes, and an oxide layer can be generated on the surface of the electrolytic copper due to air oxidation. The existing cleaning mode can not only scratch the surface of the electrolytic copper, but also has poor cleaning effect and certain environmental protection risk. The project aims to research and develop the electrolytic copper environment-friendly cleaning technology, improve the cleaning effect of the electrolytic copper and reduce the environment-friendly risk of the cleaning operation.
The invention has the technical effects and advantages that:
the method for electrolyzing copper can clean various grease and dust adhered on the surface of the electrolytic copper, and cannot scratch the surface of the electrolytic copper, and after the cleaning is finished, the method reduces the environmental protection risk of the cleaning operation while improving the cleaning effect of the electrolytic copper, respectively carries out reaction treatment on the solution after the cleaning of the electrolytic copper by respectively arranging acid neutralization solution and alkaline neutralization solution, and filters reactants through a porous nano ceramic filtering device, so as to realize the environmental protection and harmless treatment of the cleaning solution.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An environment-friendly cleaning method for electrolytic copper comprises the following steps:
the method comprises the following steps: the spraying device is arranged at the upper part of the cleaning tank, and alkaline cleaning solution spraying cleaning treatment is carried out on the electrolytic copper on the conveying device under the action of gravity and spraying pressure;
step two: a turbine device driven by a motor is arranged in the cleaning and washing tank to enable the acidic cleaning solution to be in a continuous rolling state so as to clean the electrolytic copper after the alkaline cleaning again;
step three: the acidic and alkaline neutralization solutions are respectively arranged to respectively perform reaction treatment on the solution after electrolytic copper cleaning, and reactants are filtered by a porous nano ceramic filtering device, so that the environmental-friendly and harmless treatment of the cleaning solution is realized.
Wherein, the spraying water speed of the spraying device in the step one is 1.5m/s, so as to effectively remove grease on the electrolytic copper.
Furthermore, the rotating speed of the motor is controlled to be 900r/min-1200r/min, so that the oxide layer on the surface of the electrolytic copper can be effectively removed.
Furthermore, a spraying system of the spraying device is composed of three parts, wherein the first part is used for cleaning the surface of the electrolytic copper through gravity and spraying pressure, on the other hand, the electrolytic copper is rolled in the cleaning process, so that the surface of the electrolytic copper can be sufficiently cleaned, the second part is used for cleaning powder after the water is washed, and the third part is used for circularly collecting water and powder.
Wherein the pH value of the solution after the electrolytic copper is cleaned by the acid and alkaline neutralization solution is regulated to 6.9-7.2.
Further, after the action of gravity and spraying pressure in the step one, the surface of the electrolytic copper needs to be dried by a dryer.
Furthermore, the neutralization reactant is filtered by a vertical flow type, wherein rising flow expansion neutralization cleaning wastewater moves from bottom to top, the filter material is in a suspension state, the filter layer expands, collision friction is generated, and precipitates are difficult to cover the surface of the filter material, so that the acid-containing concentration can be properly increased, generated carbon dioxide is easily discharged from the top, a filter bed cannot be blocked, and then the reactant is filtered by the cleaning wastewater through a porous nano ceramic filter device, so that the environment-friendly and harmless treatment of the cleaning solution is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An electrolytic copper environment-friendly cleaning method is characterized by comprising the following steps:
the method comprises the following steps: the spraying device is arranged at the upper part of the cleaning tank, and alkaline cleaning solution spraying cleaning treatment is carried out on the electrolytic copper on the conveying device under the action of gravity and spraying pressure;
step two: a turbine device driven by a motor is arranged in the cleaning and washing tank to enable the acidic cleaning solution to be in a continuous rolling state so as to clean the electrolytic copper after the alkaline cleaning again;
step three: the acidic and alkaline neutralization solutions are respectively arranged to respectively perform reaction treatment on the solution after electrolytic copper cleaning, and reactants are filtered by a porous nano ceramic filtering device, so that the environmental-friendly and harmless treatment of the cleaning solution is realized.
2. The environment-friendly cleaning method for electrolytic copper according to claim 1, wherein the spraying speed of the spraying device in the first step is 1.5m/s, so as to effectively remove grease on the electrolytic copper.
3. The method for cleaning electrolytic copper in an environment-friendly manner according to claim 1, wherein the motor rotation speed is controlled to be 900r/min to 1200r/min, so that the oxide layer on the surface of the electrolytic copper can be removed efficiently.
4. The method for environmentally cleaning electrolytic copper according to claim 1, wherein a spraying system of the spraying device is composed of three parts, the first part is used for cleaning the surface of the electrolytic copper through gravity and spraying pressure, on the other hand, the electrolytic copper is rolled during cleaning, so that the surface of the electrolytic copper can be sufficiently cleaned, after the water is washed, the second part is used for cleaning powder, and the third part is used for circularly collecting water and powder.
5. The method for cleaning electrolytic copper in an environment-friendly manner according to claim 1, wherein the acid and alkaline neutralization solution is used for adjusting the pH value of the solution after the electrolytic copper is cleaned to 6.9-7.2.
6. The environmental protection cleaning method for electrolytic copper according to claim 1, wherein in the first step, after the action of gravity and spraying pressure, the surface of the electrolytic copper is dried by a dryer.
7. The environment-friendly cleaning method for electrolytic copper as claimed in claim 1, characterized in that the neutralization reactant filtering adopts a vertical flow type, wherein the upward flow expansion neutralization cleaning wastewater moves from bottom to top, the filtering material is in a suspended state, the filtering layer expands, collision friction occurs, and the precipitate is difficult to cover the surface of the filtering material, so that the acid concentration can be properly increased, the generated carbon dioxide is easily discharged from the top, the filtering bed is not blocked, and then the reactant is filtered by the cleaned wastewater through the porous nano ceramic filtering device, so as to realize the environment-friendly and harmless treatment of the cleaning solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616178.9A CN113445056A (en) | 2021-06-02 | 2021-06-02 | Environment-friendly cleaning method for electrolytic copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616178.9A CN113445056A (en) | 2021-06-02 | 2021-06-02 | Environment-friendly cleaning method for electrolytic copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113445056A true CN113445056A (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110616178.9A Pending CN113445056A (en) | 2021-06-02 | 2021-06-02 | Environment-friendly cleaning method for electrolytic copper |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040112763A1 (en) * | 2001-07-13 | 2004-06-17 | Itoh Jin-Ichi | Method for surface treatment of processed copper workpiece |
| US20160052800A1 (en) * | 2013-07-12 | 2016-02-25 | Suzhou Micro Ceramics Heavy Metal Filter Technology Co., Ltd. | A filter material having a function of adsorbing and fixing arsenic and heavy metals |
| CN106521533A (en) * | 2016-12-07 | 2017-03-22 | 有研粉末新材料（北京）有限公司 | Continuous washing device and method for electrolytic copper powder |
-
2021
- 2021-06-02 CN CN202110616178.9A patent/CN113445056A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040112763A1 (en) * | 2001-07-13 | 2004-06-17 | Itoh Jin-Ichi | Method for surface treatment of processed copper workpiece |
| US20160052800A1 (en) * | 2013-07-12 | 2016-02-25 | Suzhou Micro Ceramics Heavy Metal Filter Technology Co., Ltd. | A filter material having a function of adsorbing and fixing arsenic and heavy metals |
| CN106521533A (en) * | 2016-12-07 | 2017-03-22 | 有研粉末新材料（北京）有限公司 | Continuous washing device and method for electrolytic copper powder |
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Application publication date: 20210928 |
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| RJ01 | Rejection of invention patent application after publication |