CN113968638A - Copper strip cleaning line grinding and washing water recycling method - Google Patents
Copper strip cleaning line grinding and washing water recycling method Download PDFInfo
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- CN113968638A CN113968638A CN202010718552.1A CN202010718552A CN113968638A CN 113968638 A CN113968638 A CN 113968638A CN 202010718552 A CN202010718552 A CN 202010718552A CN 113968638 A CN113968638 A CN 113968638A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000005406 washing Methods 0.000 title claims abstract description 67
- 238000000227 grinding Methods 0.000 title claims abstract description 49
- 238000004064 recycling Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 29
- 239000010949 copper Substances 0.000 title claims abstract description 29
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000000746 purification Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 235000011149 sulphuric acid Nutrition 0.000 claims description 6
- 239000008237 rinsing water Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims description 3
- 238000005374 membrane filtration Methods 0.000 claims description 3
- 238000010517 secondary reaction Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 2
- 238000013327 media filtration Methods 0.000 claims 1
- 230000029219 regulation of pH Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 244000185238 Lophostemon confertus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention relates to the technical field of copper and copper alloy strip processing, and discloses a method for grinding and recycling washing water of a copper strip cleaning line, which comprises the following steps: 1) the water for the second-stage grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.1 after filtering, and is pumped to the water for the first-stage grinding from the tank No. 1; 2) the water for primary grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.2 after filtering, and is pumped to NO.2 water washing after acid washing from the tank No. 2; 3) and the NO.2 water for washing flows to the belt type non-woven fabric filter automatically through a pipeline for filtering, returns to the cold water circulation tank No. 3 after filtering, and is pumped to NO.1 water for washing after alkali washing. The copper strip cleaning line grinding and washing water recycling method forms a set of grinding and washing water recycling system, after treatment, the conductivity of the recycling water is less than or equal to 500 mu S/cm, the PH value is within the range of 6-9, and the effects of saving water and reducing production cost are achieved.
Description
Technical Field
The invention relates to the technical field of copper and copper alloy strip processing, in particular to a method for grinding and recycling washing water of a copper strip washing line.
Background
The copper strip is a metal element, the specification of the copper strip product has various states of 0.1-3 multiplied by 50-250 mm, the copper strip product is mainly used for producing electric appliance elements, lamp caps, battery caps, buttons, sealing elements and connectors, and is mainly used as electric conduction, heat conduction and corrosion resistance equipment, such as electric elements, switches, gaskets, electric vacuum devices, radiators, electric conduction base materials, automobile water tanks, radiating fins, cylinder plates and other parts.
The copper strip surface cleaning generally needs to be carried out the processes of alkali washing for removing oil, acid washing for removing surface oxides and the like, cold water is needed to wash residual alkali liquor and acid liquor after the alkali washing and the acid washing, surface pollutants also need to be washed when a grinding brush box is used for washing, the washed water directly enters a sewage treatment center to be treated as wastewater, the wastewater is directly discharged after the treatment, the water consumption is large, the waste is serious, and the production cost is increased, so that the method for grinding and recycling the washing water of the copper strip cleaning line is provided for solving the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for grinding and washing water recycling of a copper strip cleaning line, which has the advantage of saving resources, and solves the problems that the surface of a copper strip needs to be washed with cold water for washing residual alkali liquor and acid liquor after alkaline washing and acid washing, surface pollutants also need to be washed when a grinding and washing box is used for washing, the washed water directly enters a sewage treatment center for treating wastewater after being washed, the wastewater is directly discharged after being treated, the water consumption is large, the waste is serious, and the production cost is increased.
(II) technical scheme
In order to achieve the purpose of saving resources, the invention provides the following technical scheme: a copper strip cleaning line grinding and washing water recycling method comprises the following steps:
1) the water for the second-stage grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.1 after filtering, and is pumped to the water for the first-stage grinding from the tank No. 1;
2) the water for primary grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.2 after filtering, and is pumped to NO.2 water washing after acid washing from the tank No. 2;
3) no.2 water for washing flows to a belt type non-woven fabric filter automatically through a pipeline for filtering, returns to a cold water circulation tank 3# tank after filtering, and is pumped to NO.1 water for washing after alkali washing;
4) no.1 washing water automatically flows to a dirty water tank in the grinding water treatment center through a pipeline, returns to a clean water tank after being treated, and then is sent to secondary grinding water through a pump, the conductivity of the treated recycled water is less than or equal to 500 mu S/cm, and the PH value is within the range of 6-9.
Preferably, the precision of the belt type non-woven fabric filter in the steps 1), 2) and 3) is less than or equal to 20 mu m.
Preferably, the method for treating the dirty water in the dirty water tank in the step 4) is oil separating tank → primary reaction tank (NaOH, PAC, PAM) → primary precipitation → secondary reaction tank (H2SO4, PAC, PAM) → secondary precipitation tank → multimedia filtration → clean water tank → recycling.
More preferably, the method for treating the dirty water in the dirty water tank in the step 4) is oil separating tank → PH adjusting tank (NaOH or H2SO4) → reaction tank (PAC) → flocculation tank (PAM) → inclined plate sedimentation tank → air flotation tank → RO membrane filtration → clean water tank → recycling.
Preferably, an automatic conductivity detector is installed in the water purification tank to monitor the water quality in real time, and an automatic water replenishing valve is installed above the water purification tank to replenish deionized water.
Preferably, the addition of the required medicines in the treatment process is automatically controlled.
(III) advantageous effects
Compared with the prior art, the invention provides a method for grinding and recycling washing water of a copper strip cleaning line, which has the following beneficial effects:
the copper strip cleaning line grinding and washing water recycling method forms a set of grinding and washing water recycling system, which comprises two blocks: firstly, recycling flushing water step by step, treating water → grinding flushing → acid washing flushing → alkali washing flushing; secondly, the alkaline washing water flows back to a reuse water treatment center for treatment, the treated water is reused for grinding and washing, after the treatment, the conductivity of the reuse water is less than or equal to 500 mu S/cm, and the PH value is within the range of 6-9, thereby playing the roles of saving water and reducing production cost.
Drawings
FIG. 1 is a waterway diagram of a method for grinding and recycling washing water of a copper strip cleaning line provided by the invention;
FIG. 2 is a flow chart of an embodiment of a water treatment process of a copper strip cleaning line grinding and rinsing water recycling method according to the present invention;
FIG. 3 is a flow chart of an embodiment of a water treatment process for a copper strip cleaning line grinding and rinsing water recycling method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-3, the present invention provides the following technical solutions: a copper strip cleaning line grinding and washing water recycling method comprises the following steps:
1) the water for the second-stage grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.1 after filtering, and is pumped to the water for the first-stage grinding from the tank No. 1;
2) the water for primary grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.2 after filtering, and is pumped to NO.2 water washing after acid washing from the tank No. 2;
3) no.2 water for washing flows to a belt type non-woven fabric filter automatically through a pipeline for filtering, returns to a cold water circulation tank 3# tank after filtering, and is pumped to NO.1 water for washing after alkali washing;
4) no.1 washing water automatically flows to a dirty water tank in the grinding water treatment center through a pipeline, returns to a clean water tank after being treated, and then is sent to secondary grinding water through a pump, the conductivity of the treated recycled water is less than or equal to 500 mu S/cm, and the PH value is within the range of 6-9.
The precision of the belt type non-woven fabric filter in the steps 1), 2) and 3) is less than or equal to 20 microns, an automatic conductivity detector is installed in the water purification tank to monitor the water quality in real time, an automatic water replenishing valve is installed above the water purification tank to replenish deionized water, and the replenishment of required medicines in the treatment process is automatically controlled, so that the production efficiency is improved, and the labor cost is saved.
The first embodiment is as follows: and 4) treating the dirty water in the dirty water tank in the step 4) by using an oil separating tank → a primary reaction tank (NaOH, PAC and PAM) → primary precipitation → a secondary reaction tank (H2SO4, PAC and PAM) → secondary precipitation tank → multi-medium filtration → a clean water tank → recycling.
Example two: and 4) treating the dirty water in the dirty water tank in the step 4) by using an oil separating tank → a PH regulating tank (NaOH or H2SO4) → a reaction tank (PAC) → a flocculation tank (PAM) → an inclined plate sedimentation tank → an air flotation tank → RO membrane filtration → a clean water tank → recycling.
The invention has the beneficial effects that: the copper strip cleaning line grinding and washing water recycling method forms a set of grinding and washing water recycling system, which comprises two blocks: firstly, recycling flushing water step by step, treating water → grinding flushing → acid washing flushing → alkali washing flushing; secondly, the alkaline washing water flows back to a reuse water treatment center for treatment, the treated reuse water is recycled for grinding and washing, after the treatment, the conductivity of the reuse water is less than or equal to 500 muS/cm, the PH value is within the range of 6-9, the effects of saving water and reducing the production cost are achieved, the problems that cold water is needed to wash residual alkali liquor and acid liquor after alkaline washing and acid washing of the surface of the copper strip, surface pollutants need to be washed when a grinding brush box is used for washing, the washing water directly enters a sewage treatment center after washing to be treated as wastewater, the water consumption is large, the waste is serious, and the production cost is increased are solved.
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 (6)
1. A copper strip cleaning line grinding and washing water recycling method is characterized by comprising the following steps:
1) the water for the second-stage grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.1 after filtering, and is pumped to the water for the first-stage grinding from the tank No. 1;
2) the water for primary grinding automatically flows to a belt type non-woven fabric filter through a pipeline for filtering, returns to a cold water circulation tank No.2 after filtering, and is pumped to NO.2 water washing after acid washing from the tank No. 2;
3) no.2 water for washing flows to a belt type non-woven fabric filter automatically through a pipeline for filtering, returns to a cold water circulation tank 3# tank after filtering, and is pumped to NO.1 water for washing after alkali washing;
4) no.1 washing water automatically flows to a dirty water tank in the grinding water treatment center through a pipeline, returns to a clean water tank after being treated, and then is sent to secondary grinding water through a pump, the conductivity of the treated recycled water is less than or equal to 500 mu S/cm, and the PH value is within the range of 6-9.
2. The method for grinding and washing water recycling of the copper strip cleaning line according to claim 1, wherein the precision of the belt type non-woven fabric filter in the steps 1), 2) and 3) is less than or equal to 20 μm.
3. The copper strip cleaning line grinding and washing water recycling method as claimed in claim 1, wherein the dirty water treatment method in the dirty water tank in the step 4) is oil separation tank → primary reaction tank (NaOH, PAC, PAM) → primary precipitation → secondary reaction tank (H2SO4, PAC, PAM) → secondary precipitation tank → multi-media filtration → water purification tank → recycling.
4. The copper strip cleaning line grinding and washing water recycling method according to claim 1, wherein the dirty water treatment method in the dirty water tank in the step 4) is oil separation tank → PH regulation tank (NaOH or H2SO4) → reaction tank (PAC) → flocculation tank (PAM) → inclined plate sedimentation tank → air flotation tank → RO membrane filtration → water purification tank → recycling.
5. The copper strip cleaning line grinding and rinsing water recycling method according to claim 1, wherein an automatic conductivity detector is installed in the water purification tank to monitor water quality in real time, and an automatic water replenishing valve is installed above the water purification tank to replenish deionized water.
6. The copper strip cleaning line grinding and rinsing water recycling method according to claim 1, wherein the addition of the required chemicals in the treatment process is automatically controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718552.1A CN113968638A (en) | 2020-07-23 | 2020-07-23 | Copper strip cleaning line grinding and washing water recycling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010718552.1A CN113968638A (en) | 2020-07-23 | 2020-07-23 | Copper strip cleaning line grinding and washing water recycling method |
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| CN113968638A true CN113968638A (en) | 2022-01-25 |
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| CN202010718552.1A Pending CN113968638A (en) | 2020-07-23 | 2020-07-23 | Copper strip cleaning line grinding and washing water recycling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024028749A1 (en) * | 2022-08-01 | 2024-02-08 | TEC Austria GmbH | Use of a lamella clarifier in a sedimentation device of an apparatus for the treatment of oil- and/or fat-containing waste water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557350A (en) * | 2012-01-19 | 2012-07-11 | 合肥德安水处理设备有限公司 | Purification system for micro-polluted raw water and purification method thereof |
| CN208645042U (en) * | 2018-05-28 | 2019-03-26 | 无锡睿龙新材料科技有限公司 | Copper-clad plate processor |
| CN208717015U (en) * | 2018-06-07 | 2019-04-09 | 广东威特雅环境科技有限公司 | Wiring board abrasive waste water reclaiming system |
| CN109879527A (en) * | 2019-02-18 | 2019-06-14 | 江西盖亚环保科技有限公司 | A kind of enhanced processing method and system of complexity high-concentration organic ammonia nitrogen waste water |
-
2020
- 2020-07-23 CN CN202010718552.1A patent/CN113968638A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557350A (en) * | 2012-01-19 | 2012-07-11 | 合肥德安水处理设备有限公司 | Purification system for micro-polluted raw water and purification method thereof |
| CN208645042U (en) * | 2018-05-28 | 2019-03-26 | 无锡睿龙新材料科技有限公司 | Copper-clad plate processor |
| CN208717015U (en) * | 2018-06-07 | 2019-04-09 | 广东威特雅环境科技有限公司 | Wiring board abrasive waste water reclaiming system |
| CN109879527A (en) * | 2019-02-18 | 2019-06-14 | 江西盖亚环保科技有限公司 | A kind of enhanced processing method and system of complexity high-concentration organic ammonia nitrogen waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024028749A1 (en) * | 2022-08-01 | 2024-02-08 | TEC Austria GmbH | Use of a lamella clarifier in a sedimentation device of an apparatus for the treatment of oil- and/or fat-containing waste water |
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