CN104862705A - Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid - Google Patents
Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid Download PDFInfo
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- CN104862705A CN104862705A CN201510195020.3A CN201510195020A CN104862705A CN 104862705 A CN104862705 A CN 104862705A CN 201510195020 A CN201510195020 A CN 201510195020A CN 104862705 A CN104862705 A CN 104862705A
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Abstract
The invention relates to a zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid. The process is characterized by comprising the following steps of firstly, chemical polishing, wherein a polishing workpiece is soaked into chemical polishing solutions in a chemical polishing groove to be polished; secondly, cooling buffering, wherein the polishing workpiece obtained after chemical polishing treatment is transferred to solutions in the cooling buffer groove to be cooled and buffered; thirdly, drip recycling, wherein the polishing workpiece obtained after cooling and buffering is transferred to a drip recycling groove to have drip treatment, and a recycling outlet in the bottom of the drip flow recycling groove recycles waste liquid on the surface of the polishing workpiece; fourthly, washing, wherein the polishing workpiece obtained after drip flow treatment enters a washing groove to have washing treatment. In a word, the process has the advantages of being recyclable, high in recycling rate, safe, and environmentally friendly, and reducing pollutions.
Description
Technical field
The invention belongs to environmental protection technical field, be specifically related to a kind of metallochemistry polishing Zero discharge and recovery process, particularly a kind of Al and Alalloy chemical rightenning waste liquid zero release and recovery process.
Background technology
Phosphoric acid, sulfuric acid and nitric acid (or special polishing fluid) is mostly used in aluminium chemical polishing treatment process, because polish temperature is higher, general all even higher between 90-120 degree, so the time that washing bath transferred to by polished workpiece in the middle of air can not be oversize, otherwise just there will be the bad phenomenon such as excessive erosion.In addition, be attached to aluminium workpiece surface, be not easy drip and return polishing trough owing to having a lot of bubble during polishing, and cause taking consumption out of too much, the tank liquor taken out of enters lower road washing bath and produces a large amount of waste liquids.
The way that current solution workpiece shifts in the air mainly adds inhibiter or the brightening agent etc. containing corrosion mitigating effect inside polishing trough, aerial transfer time can be extended, reduce the loss of liquid medicine, but the consumption that final surface is taken out of is still larger, can not thoroughly deal with problems.And the waste liquid entering washing bath is usually all processed in inflow purification tank for liquid waste, mainly by adding sodium hydroxide or lime carries out neutralization precipitation, then carrying out press filtration, forming waste residue and discharging, considerably increasing pressure and the cost of wastewater treatment.
Some enterprise carries out recycling to first washing after polishing, but can not remove for too high aluminum ion in recovery solution and Ethylene recov cannot be utilized to produce normally, when these aluminum ions exceeded standard mainly to come from groove polishing and aerial transfer, workpiece and polishing fluid react and produced, therefore higher than the aluminium ion concentration in polishing trough.And when being recycled by the first washing in technique provided by the invention, then can not produce this problem.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and provide a kind of polishing fluid of recovery to greatest extent even to reach the zero release of aluminium chemical polishing tank liquor and the recovery process of zero release.
The object of the present invention is achieved like this: a kind of Al and Alalloy chemical rightenning waste liquid zero release and recovery process, it comprises the steps:
Step one, chemical rightenning, the chemical polishing soln immersed by polishing workpiece in chemical polishing bath carries out polished finish;
Step 2, cooling buffering, is transferred to through the polishing workpiece after chemical rightenning process in the tank liquor in cooling dashpot and carries out cooling buffered;
Step 3, drip reclaims, and the polishing workpiece after cooling buffering is transferred in drip accumulator tank and carries out drip process, and reclaims the waste liquid on polishing workpiece surface by the recovery outlet be equipped with bottom drip accumulator tank;
Step 4: washing, the polishing workpiece after drip process enters in washing bath and carries out washing process.
Tank liquor in cooling dashpot in described step 2 is identical with the chemical polishing soln in the chemical polishing bath in step one.
Tank liquor in cooling dashpot in described step 2 can add the water of tank liquor quality 0%-30%, and described cooling dashpot is connected with refrigerating unit.
Tank liquor temperature scope in cooling dashpot in described step 2 is 0-80 DEG C.
Drip accumulator tank in described step 3 omits the not used time, carries out drip recycling by unsettled for the polishing workpiece after cooling above cooling dashpot.
Washing bath in described step 4 is at least one.
Carry out neutralizing out optical processing during polishing workpiece after washing bath process in described step 4 enters He in light output groove, a small amount of polishing fluid that polishing workpiece remains is transferred to this operation simultaneously and carry out second stage employ.
In described step 4, washing bath is multiple and workpiece is unnecessary when carrying out neutralizing out optical processing, and the neutralization that can save goes out optical processing, and when first washing bath carries out reclaiming or emptying, the tank liquor in tank thereafter can be added in previous washing bath successively.
With the pH value < 7 for the treatment of solution in light output groove in described.
Beneficial effect of the present invention: energy-conserving and environment-protective of the present invention, utilize and lowered temperature reclamation groove is set to reduce the temperature on polishing workpiece surface, eliminate open bubble, reduce the adhesive power on surface, adopt drip accumulator tank to carry out long drip process simultaneously, make polishing fluid recycle and reuse to the greatest extent to greatest extent, and the washing bath after drip accumulator tank also can collect and carries out recycle and reuse, in and acid working fluid in light output groove a small amount of polishing waste liquid of polishing workpiece surface residual thoroughly can be absorbed and carry out second stage employ, whole chemical rightenning link is discharged without any waste liquid and waste water, really realize the object of zero release, be not only enterprise and reduce direct manufacturing cost, also eliminate the expense of wastewater treatment, meet the requirement that environmental protection is produced, there is good Social benefit and economic benefit.Total the present invention has that recycle, the rate of recovery are high, safety and environmental protection, fall oligosaprobic advantage.
Embodiment
The present invention is described further below.
Embodiment 1
A kind of Al and Alalloy chemical rightenning waste liquid zero release and recovery process, it comprises the steps:
Step one, chemical rightenning, the chemical polishing soln immersed by polishing workpiece in chemical polishing bath carries out polished finish;
Step 2, cooling buffering, is transferred to through the polishing workpiece after chemical rightenning process in the tank liquor in cooling dashpot and carries out cooling buffered;
Step 3, drip reclaims, and the polishing workpiece after cooling buffering is transferred in drip accumulator tank and carries out drip process, and reclaims the waste liquid on polishing workpiece surface by the recovery outlet be equipped with bottom drip accumulator tank;
Step 4: washing, the polishing workpiece after drip process enters in washing bath and carries out washing process.
The present invention is in use: polishing workpiece is put into chemical polishing bath and carries out polished finish, be transferred to subsequently in cooling dashpot and carry out cooling buffered, the surface temperature of polishing workpiece is reduced rapidly, eliminate open bubble, reduce surface tension, improve drip speed.Configure heat sink simultaneously, ensure that the temperature of tank liquor is between 0 ~ 80 DEG C with this, the tank liquor of lowering the temperature in dashpot allows additionally to add appropriate moisture content to reduce the viscosity of cooling buffering tank liquor simultaneously, additionally add the content range of water generally 0 ~ 30%, long drip process is carried out subsequently through an empty drip accumulator tank, thus to greatest extent the polishing fluid of product surface is recycled, upper procedure polishing workpiece out cleans up by the washing bath after accumulator tank, finally enter into and process with light output groove, and the remaining polishing fluid on polishing workpiece is thoroughly recycled simultaneously, total the present invention has recycle, the rate of recovery is high, safety and environmental protection, oligosaprobic advantage is fallen.
Embodiment 2
A kind of Al and Alalloy chemical rightenning waste liquid zero release and recovery process, it comprises the steps:
Step one, chemical rightenning, the chemical polishing soln immersed by polishing workpiece in chemical polishing bath carries out polished finish;
Step 2, cooling buffering, is transferred to through the polishing workpiece after chemical rightenning process in the tank liquor in cooling dashpot and carries out cooling buffered;
Step 3, drip reclaims, and the polishing workpiece after cooling buffering is transferred in drip accumulator tank and carries out drip process, and reclaims the waste liquid on polishing workpiece surface by the recovery outlet be equipped with bottom drip accumulator tank;
Step 4: washing, the polishing workpiece after drip process enters in washing bath and carries out washing process.
Tank liquor in cooling dashpot in described step 2 is identical with the chemical polishing soln in the chemical polishing bath in step one.
Tank liquor in cooling dashpot in described step 2 can add the water of tank liquor quality 0%-30%, and described cooling dashpot is connected with refrigerating unit.
Tank liquor temperature scope in cooling dashpot in described step 2 is 0-80 DEG C.
Drip accumulator tank in described step 3 omits the not used time, carries out drip recycling by unsettled for the polishing workpiece after cooling above cooling dashpot.
Washing bath in described step 4 is at least one.
Carry out neutralizing out optical processing during polishing workpiece after washing bath process in described step 4 enters He in light output groove, a small amount of polishing fluid that polishing workpiece remains is transferred to this operation simultaneously and carry out second stage employ.
In described step 4, washing bath is multiple and workpiece is unnecessary when carrying out neutralizing out optical processing, and the neutralization that can save goes out optical processing, and when first washing bath carries out reclaiming or emptying, the tank liquor in tank thereafter can be added in previous washing bath successively.
With the pH value < 7 for the treatment of solution in light output groove in described.
The present invention is in use: polishing workpiece is put into chemical polishing bath and carries out polished finish, be transferred to subsequently in cooling dashpot and carry out cooling buffered, the surface temperature of polishing workpiece is reduced rapidly, eliminate open bubble, reduce surface tension, improve drip speed, cooling dashpot can be equipped with refrigerating unit according to the weather condition of locality, the temperature range 0 ~ 50 DEG C of tank liquor in the best is ensured with this, the tank liquor of lowering the temperature in dashpot allows additionally to add appropriate moisture content to reduce the viscosity of cooling buffering tank liquor simultaneously, additionally add the content range of water generally 0 ~ 30%, wherein optimum range is 0 ~ 10%, long drip process is carried out subsequently through an empty drip accumulator tank, thus to greatest extent the polishing fluid of product surface is recycled, be equipped with one bottom drip accumulator tank and reclaim outlet, the liquid medicine of recovery is extracted out or automatically flows out, drip accumulator tank also can omit need not, above cooling dashpot, drip recovery is carried out by directly unsettled for product, upper procedure polishing workpiece out cleans up by the washing bath after accumulator tank, washing bath can be equipped with one or more, the polishing fluid that wherein first washing bath is residual directly can carry out recycle and reuse, finally enter into and process with light output groove, in and light output groove in acidic treatment liquid the remaining polishing fluid on polishing workpiece is thoroughly recycled, if preceding processes has multiple washing bath, and product itself does not need to carry out neutralizing out optical processing yet, also with bright dipping treatment process in can saving, directly enter other operation, when first washing bath carry out recovery empty time, thereafter the tank liquor in tank can be added to successively previous washing bath to use, in a word, the present invention has recycle, the rate of recovery is high, safety and environmental protection, oligosaprobic advantage is fallen.
Claims (9)
1. the zero release of Al and Alalloy chemical rightenning waste liquid and a recovery process, is characterized in that, it comprises the steps:
Step one, chemical rightenning, the chemical polishing soln immersed by polishing workpiece in chemical polishing bath carries out polished finish;
Step 2, cooling buffering, is transferred to through the polishing workpiece after chemical rightenning process in the tank liquor in cooling dashpot and carries out cooling buffered;
Step 3, drip reclaims, and the polishing workpiece after cooling buffering is transferred in drip accumulator tank and carries out drip process, and reclaims the waste liquid on polishing workpiece surface by the recovery outlet be equipped with bottom drip accumulator tank;
Step 4, washing, the polishing workpiece after drip process enters in washing bath and carries out washing process.
2. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 and recovery process, is characterized in that: the tank liquor in the cooling dashpot in described step 2 is identical with the chemical polishing soln in the chemical polishing bath in step one.
3. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 or 2 and recovery process, it is characterized in that: the tank liquor in the cooling dashpot in described step 2 can add the water of tank liquor quality 0%-30%, described cooling dashpot is connected with refrigerating unit.
4. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 and recovery process, is characterized in that: the tank liquor temperature scope in the cooling dashpot in described step 2 is 0-80 DEG C.
5. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 and recovery process, it is characterized in that: the drip accumulator tank in described step 3 omits the not used time, above cooling dashpot, carry out drip recycling by unsettled for the polishing workpiece after cooling.
6. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 and recovery process, is characterized in that: the washing bath in described step 4 is at least one.
7. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 1 and recovery process, it is characterized in that: carry out neutralizing out optical processing during the polishing workpiece after the washing bath process in described step 4 enters He in light output groove, a small amount of polishing fluid that polishing workpiece remains is transferred to this operation simultaneously and carry out second stage employ.
8. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 7 and recovery process, it is characterized in that: in described step 4, washing bath is multiple and workpiece is unnecessary when carrying out neutralizing out optical processing, the neutralization that can save goes out optical processing, and first washing bath is when carrying out reclaiming or emptying, the tank liquor in tank thereafter can be added in previous washing bath successively.
9. a kind of Al and Alalloy chemical rightenning waste liquid zero release as claimed in claim 7 and recovery process, is characterized in that: with the pH value < 7 for the treatment of solution in light output groove in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195020.3A CN104862705A (en) | 2015-04-16 | 2015-04-16 | Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid |
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| CN201510195020.3A CN104862705A (en) | 2015-04-16 | 2015-04-16 | Zero draining and recycling process of aluminum and aluminum alloy chemical polishing waste liquid |
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| CN104862705A true CN104862705A (en) | 2015-08-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780007A (en) * | 2016-05-25 | 2016-07-20 | 佛山市海化表面处理科技有限公司 | Polishing bath of aluminium material and production technology of aluminium material |
| CN106757035A (en) * | 2016-12-23 | 2017-05-31 | 佛山市南海铂朗助剂科技有限公司 | A kind of medal polish handling process |
| CN107022764A (en) * | 2016-01-29 | 2017-08-08 | 天津亚轩科技有限公司 | A kind of pickling tube bindiny mechanism |
| CN109179357A (en) * | 2018-07-27 | 2019-01-11 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | The configuration of aluminium industry polished and cleaned Sewage treatment compound fertilizer's method and system |
| US10811793B2 (en) | 2016-07-27 | 2020-10-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Mobile terminal, power adapter and power interface |
| CN112442693A (en) * | 2020-11-12 | 2021-03-05 | 成都阳光铝制品有限公司 | Efficient smokeless polishing process for aluminum profile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298038A (en) * | 1999-12-02 | 2001-06-06 | 都江堰市英华铝业有限责任公司 | Simple aluminium shape polishing liquid recovering method without power consumption |
| CN103556153A (en) * | 2013-11-01 | 2014-02-05 | 湖北航天双龙专用汽车有限公司 | Device and method for polishing outer surface of aluminum alloy tank |
-
2015
- 2015-04-16 CN CN201510195020.3A patent/CN104862705A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298038A (en) * | 1999-12-02 | 2001-06-06 | 都江堰市英华铝业有限责任公司 | Simple aluminium shape polishing liquid recovering method without power consumption |
| CN103556153A (en) * | 2013-11-01 | 2014-02-05 | 湖北航天双龙专用汽车有限公司 | Device and method for polishing outer surface of aluminum alloy tank |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022764A (en) * | 2016-01-29 | 2017-08-08 | 天津亚轩科技有限公司 | A kind of pickling tube bindiny mechanism |
| CN105780007A (en) * | 2016-05-25 | 2016-07-20 | 佛山市海化表面处理科技有限公司 | Polishing bath of aluminium material and production technology of aluminium material |
| US10811793B2 (en) | 2016-07-27 | 2020-10-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Mobile terminal, power adapter and power interface |
| CN106757035A (en) * | 2016-12-23 | 2017-05-31 | 佛山市南海铂朗助剂科技有限公司 | A kind of medal polish handling process |
| CN109179357A (en) * | 2018-07-27 | 2019-01-11 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | The configuration of aluminium industry polished and cleaned Sewage treatment compound fertilizer's method and system |
| CN109179357B (en) * | 2018-07-27 | 2020-03-24 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Method and system configuration for recovering compound fertilizer from polishing and cleaning wastewater in aluminum industry |
| CN112442693A (en) * | 2020-11-12 | 2021-03-05 | 成都阳光铝制品有限公司 | Efficient smokeless polishing process for aluminum profile |
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Application publication date: 20150826 |
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