CN107555695A - A kind of Zero discharging system and processing method of acid etching regenerated liquid - Google Patents
A kind of Zero discharging system and processing method of acid etching regenerated liquid Download PDFInfo
- Publication number
- CN107555695A CN107555695A CN201711023663.5A CN201711023663A CN107555695A CN 107555695 A CN107555695 A CN 107555695A CN 201711023663 A CN201711023663 A CN 201711023663A CN 107555695 A CN107555695 A CN 107555695A
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- CN
- China
- Prior art keywords
- regenerated liquid
- evaporator
- acid etching
- zero discharging
- condensing tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 238000005530 etching Methods 0.000 title claims abstract description 34
- 239000002253 acid Substances 0.000 title claims abstract description 24
- 238000007599 discharging Methods 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000008929 regeneration Effects 0.000 claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000012452 mother liquor Substances 0.000 claims abstract description 11
- 239000007800 oxidant agent Substances 0.000 claims abstract description 10
- 230000001172 regenerating effect Effects 0.000 claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000004821 distillation Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical group [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 5
- 229910001431 copper ion Inorganic materials 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000033116 oxidation-reduction process Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010025 steaming Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000012153 distilled water Substances 0.000 abstract description 3
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- ing And Chemical Polishing (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention is applied to industrial waste water treatment, there is provided a kind of Zero discharging system and processing method of acid etching regenerated liquid, the system include regenerative system, regenerated liquid storage device, evaporator, condenser, regeneration concentrated liquor cylinder and washing drum.The system will be pumped in regenerated liquid to evaporator, and carry out heating distillation under vacuum conditions in processing procedure, the aqueous vapor of evaporation, which is delivered in condensing tower, to cool, and becomes distilled water, distilled water transfers out from the bottom of condensing tower, and be stored in washing drum, available for doing washing.And be then transported in regeneration concentrated liquor cylinder in remaining mother liquor, when room temperature is cooled to 30~40 degrees Celsius, it is added in regenerated liquid allotment bucket, then adds hydrochloric acid, oxidant, then reuse to etching line.And the cooling water in condensing tower is used for the allotment of board-washing or oxidizing agent solution.So as to realize the zero-emission of waste liquid, clean manufacturing is realized.
Description
Technical field
The invention belongs to industrial waste water treatment, more particularly to a kind of Zero discharging system of acid etching regenerated liquid
And processing method.
Background technology
One of the important procedure made as wiring board is etched, 10,000 square metres of printed wiring board is often produced during it
About 20 tons of etching waste liquor is produced, this part etching waste liquor passes through the electrolysis of clean scientific and technological invention patent acidity etching liquid recycling of speeding
Device, system and application (publication No.：CN106906489A after the electrochemical method regeneration) provided, about 30% is produced again
Raw liquid increment.Direct chemical oxidation regeneration, will also tend to produce substantial amounts of increment.The regenerated liquid of increment can not be back to use etching line
On, and cause the waste of resource.
Often cost is high and can cause serious environmental pollution for the method for the etching regenerated liquid of existing processing increment.
The content of the invention
Embodiments of the invention can solve the process problem of the incremental portion of acid etching regenerated liquid, realize returning for resource
Receive and utilize, without discharging of waste liquid in processing procedure, realize clean manufacturing.
Present embodiments provide a kind of Zero discharging system of acid etching regenerated liquid, including the storage of regenerative system, regenerated liquid
Device, evaporator, condenser, regeneration concentrated liquor cylinder and washing drum；Heater is provided with the evaporator and is taken out
Vacuum system, the condenser include condensing tower, are provided with cooling system in the condensing tower, also, the cooling system
Water inlet and delivery port extend outside the condensing tower；The regenerative system connects with regenerated liquid storage device, described
Regenerated liquid storage device is connected by pumping installations with the inside of the evaporator, and the top of the evaporator passes through pipeline and institute
State and connected inside condensing tower, the bottom of the evaporator is connected by pipeline with the regeneration concentrated liquor cylinder, the condensing tower
Bottom connected by pipeline with the washing drum.
Further, the heater is electric heater unit, hot oil heater or steam heater.
Further, the heater includes heating tube, and there is the heating tube heat conduction oil-in and conduction oil to go out
Mouthful, the conduction oil outlet is located at the top of the heat conduction oil-in.
Further, there are some vertical spaced cooling tubes in the condensing tower.
Further, the pumping installations is a magnetic drive pump.
Further, the evaporator and condensing tower are made of titanium or polytetrafluoroethylene (PTFE) acid resisting material.
Further, the cooling system includes cooling tube, and the delivery port of the cooling tube is located at height on its water inlet.
In order to solve the above-mentioned technical problem the present embodiment, additionally provides a kind of using the acid erosion of above-mentioned Zero discharging system processing
The method for carving existing regenerated liquid, comprises the following steps：
S100, a certain amount of regenerated liquid collected by the regenerative system, and be stored in the regenerated liquid storage device；
S200, pumping installations is opened, regenerated liquid is pumped into evaporator, open heater and pumped vacuum systems, to
Condensing tower is passed through cooling water, controls 40~70 degrees Celsius, 0~0.1MPa of vacuum of temperature in evaporator, distillation a period of time, makes
The control of mother liquor concentrations ratio closes corresponding heater and cooling system 0.05~0.6；
S300, will be evaporated in evaporator remaining mother liquor be transported to regeneration concentrated liquor cylinder, the water in condensing tower is got to
In wash water cylinder；
S400, after concentrate is cooled into 30~40 degrees Celsius, be added in regenerated liquid allotment bucket, then add hydrochloric acid,
Oxidant, it is copper ion to be adjusted to etching solution parameter, then reuse to etching line, and cooling water is used for board-washing or oxidizing agent solution
Allotment.
Further, the evaporator is carried out by the way of being evaporated under reduced pressure, and vacuum degree control is in 0.08MPa, temperature control
At 48 degrees Celsius, mother liquor concentrations ratio controls 0.05~0.6 system.
Further, the mass concentration of copper ion is 120g/L, and oxidation-reduction potential is 520mV.
Compared with prior art, beneficial effect is the present embodiment：Present embodiments provide a kind of acid etching regenerated liquid
Zero discharging system, the system first collects regenerated liquid, and it is medium that the regenerated liquid being collected into then is stored in into regenerated liquid storage device
Pending, in processing procedure, regenerated liquid carries out heating steaming by pumped to evaporator under vacuum conditions
Evaporate, the aqueous vapor of evaporation, which is discharged at the top of evaporator and is delivered in condensing tower, to cool, and becomes liquid distillate water, and distilled water is from condensation
The bottom of tower transfers out, and is stored in washing drum, can be used for doing washing.And the remaining mother liquor in base of evaporator is then defeated
Deliver in regeneration concentrated liquor cylinder, when room temperature is cooled to 30~40 degrees Celsius, is added in regenerated liquid allotment bucket, then adds
Hydrochloric acid, oxidant, then reuse to etching line.And the cooling water in condensing tower is used for the allotment of board-washing or oxidizing agent solution.From
And the zero-emission of waste liquid is realized, realize clean manufacturing.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in accompanying drawing are expressed as similar element, removed
Non- have a special statement, and composition does not limit the figure in accompanying drawing.
Fig. 1 is a kind of structural representation of the Zero discharging system of acid etching regenerated liquid provided in an embodiment of the present invention.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
A kind of as shown in figure 1, preferred embodiment for the present invention, there is provided zero-emission system of acid etching regenerated liquid
System, including regenerative system 1, regenerated liquid storage device 2, evaporator 3, condenser 4, regeneration concentrated liquor cylinder 5 and washing drum 6.
Heater and pumped vacuum systems are provided with the evaporator 3, in actual applications, heater adds for electricity
Thermal, hot oil heater or steam heater.In the present embodiment, heater includes heating tube 31, described to add
Heat pipe 31 has heat conduction oil-in 311 and conduction oil outlet 312, and the conduction oil outlet 312 is located at the heat conduction oil-in
311 top.
Above-mentioned condenser 4 includes condensing tower 41, is provided with cooling system in the condensing tower 41, in the present embodiment, condensation
There are some vertical spaced cooling tubes 42, the water inlet 421 and delivery port 422 of cooling tube 42 extend in tower 41
Outside condensing tower 41, the delivery port 422 of cooling tube 42 is located at its top of water inlet 421.
Above-mentioned regenerative system 1 connects with regenerated liquid storage device 2, and regenerated liquid storage device 2 passes through pumping installations 7 and evaporation
The inside connection of device 3, the top of evaporator 3 are connected by pipeline with the inside of condensing tower 41.The bottom of evaporator 3 by pipeline with
Regeneration concentrated liquor cylinder 5 is connected, and the bottom of condensing tower 41 is connected by pipeline with washing drum 6.Specifically, the pumping installations 7
For a magnetic drive pump.Above-mentioned evaporator 3 and condensing tower 41 are made of titanium or polytetrafluoroethylene (PTFE) acid resisting material.
The present embodiment additionally provides a kind of method using the existing regenerated liquid of above-mentioned Zero discharging system processing acid etching, including
Following steps：
S100, a certain amount of regenerated liquid collected by the regenerative system 1, and be stored in the regenerated liquid storage device 2
In；
S200, pumping installations 7 is opened, regenerated liquid is pumped into evaporator 3, evaporator 3 is by the way of being evaporated under reduced pressure
Carry out, open heater and pumped vacuum systems, cooling water is passed through to condensing tower 41, control temperature 40~70 in evaporator 3 to take the photograph
Family name's degree, preferably 48 degrees Celsius, preferably 0~0.1MPa of vacuum, 0.08Mpa；After distilling 1h, the control of mother liquor concentrations ratio is existed
0.05~0.6, the mass concentration of copper ion is 120g/L, and oxidation-reduction potential is 520mV；Close corresponding heater and
Cooling system；
S300, the remaining mother liquor of evaporation in evaporator 3 is transported to regeneration concentrated liquor cylinder 5, by the water in condensing tower 41
Get in wash water cylinder 6；
S400, after concentrate is cooled into 30~40 degrees Celsius, be added in regenerated liquid allotment bucket, then add hydrochloric acid,
Oxidant, it is copper ion to be adjusted to etching solution parameter, then reuse to etching line, and cooling water is used for board-washing or oxidizing agent solution
Allotment.
The system of the present embodiment, regenerated liquid is first collected, the regenerated liquid being collected into then is stored in regenerated liquid storage device 2
Medium pending, in processing procedure, regenerated liquid is pumped in evaporator 3 by pumping installations 7, and is added under vacuum conditions
Thermal distillation, the aqueous vapor of evaporation, which is discharged and is delivered in condensing tower 41 from the top of evaporator 3, to cool, and becomes liquid distillate water, distills
Water transfers out from the bottom of condensing tower 41, and is stored in washing drum 6, can be used for doing washing.And in the surplus of the bottom of evaporator 3
Remaining mother liquor is then transported in regeneration concentrated liquor cylinder 5, when room temperature is cooled to 30~40 degrees Celsius, is added to regenerated liquid allotment
In bucket, hydrochloric acid, oxidant are then added, then reuse to etching line.And the cooling water in condensing tower 41 is used for board-washing or oxidation
The allotment of agent solution.So as to realize the zero-emission of waste liquid, clean manufacturing is realized.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. Zero discharging system of acid etching regenerated liquid, it is characterised in that including regenerative system, regenerated liquid storage device, Evaporator, condenser, regeneration concentrated liquor cylinder and washing drum；Heater is provided with the evaporator and is vacuumized and is System, the condenser include condensing tower, cooling system, also, the water inlet of the cooling system are provided with the condensing tower And delivery port extends outside the condensing tower；The regenerative system connects with regenerated liquid storage device, the regenerated liquid Storage device is connected by pumping installations with the inside of the evaporator, and the top of the evaporator passes through pipeline and the condensation Connected inside tower, the bottom of the evaporator is connected by pipeline with the regeneration concentrated liquor cylinder, the bottom of the condensing tower Connected by pipeline with the washing drum.
- 2. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that the heater is electricity Heater, hot oil heater or steam heater.
- 3. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that the heater includes Heating tube, the heating tube have heat conduction oil-in and conduction oil outlet, and the conduction oil outlet is located at the conduction oil and entered The top of mouth.
- 4. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that have in the condensing tower Some vertical spaced cooling tubes.
- 5. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that the pumping installations is one Magnetic drive pump.
- 6. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that the evaporator and cold Solidifying tower is made of titanium or polytetrafluoroethylene (PTFE) acid resisting material.
- 7. the Zero discharging system of acid etching regenerated liquid as claimed in claim 1, it is characterised in that the cooling system includes Cooling tube, the delivery port of the cooling tube are located at height on its water inlet.
- A kind of 8. existing regenerated liquid of Zero discharging system processing acid etching using described in any one in the claims 1 to 7 Method, it is characterised in that comprise the following steps：S100, a certain amount of regenerated liquid collected by the regenerative system, and be stored in the regenerated liquid storage device；S200, pumping installations is opened, regenerated liquid is pumped into evaporator, heater and pumped vacuum systems are opened, to condensation Tower is passed through cooling water, controls 40~70 degrees Celsius, 0~0.1MPa of vacuum of temperature in evaporator, distillation a period of time, makes mother liquor Concentration ratio control closes corresponding heater and cooling system 0.05~0.6；S300, will be evaporated in evaporator remaining mother liquor be transported to regeneration concentrated liquor cylinder, the water in condensing tower is got into wash water In cylinder；S400, after concentrate is cooled into 30~40 degrees Celsius, it is added in regenerated liquid allotment bucket, then adds hydrochloric acid, oxidation Agent, it is copper ion to be adjusted to etching solution parameter, then reuse to etching line, and cooling water is used for the tune of board-washing or oxidizing agent solution Match somebody with somebody.
- 9. the method for the existing regenerated liquid of Zero discharging system processing acid etching as claimed in claim 8, it is characterised in that the steaming Hair device by the way of vacuum distillation using carrying out, and vacuum degree control is in 0.08MPa, and temperature control is at 48 degrees Celsius, mother liquor concentrations ratio Example control is 0.05~0.6.
- 10. the method for the existing regenerated liquid of Zero discharging system processing acid etching as claimed in claim 8 or 9, it is characterised in that copper The mass concentration of ion is 120g/L, and oxidation-reduction potential is 520mV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023663.5A CN107555695A (en) | 2017-10-27 | 2017-10-27 | A kind of Zero discharging system and processing method of acid etching regenerated liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023663.5A CN107555695A (en) | 2017-10-27 | 2017-10-27 | A kind of Zero discharging system and processing method of acid etching regenerated liquid |
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| Publication Number | Publication Date |
|---|---|
| CN107555695A true CN107555695A (en) | 2018-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023663.5A Pending CN107555695A (en) | 2017-10-27 | 2017-10-27 | A kind of Zero discharging system and processing method of acid etching regenerated liquid |
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| CN (1) | CN107555695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106506A (en) * | 2019-06-01 | 2019-08-09 | 广东德同环保科技有限公司 | A kind of acidic etching liquid regeneration method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10249101A (en) * | 1997-03-13 | 1998-09-22 | Kooyo Techno Kk | Liqiud concentrator |
| CN102560499A (en) * | 2012-02-03 | 2012-07-11 | 昆山市洁驰环保科技发展有限公司 | Device for recycling printed circuit board acidic etching solution |
| CN202688024U (en) * | 2012-08-03 | 2013-01-23 | 钱琳琪 | Device for recovering and concentrating waste liquid |
| CN105177583A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | Method and system for circulating and regenerating zero-emission waste acidic etching solutions |
| CN106167250A (en) * | 2016-07-07 | 2016-11-30 | 中南大学 | A kind of acid CuCl2etching solution method of comprehensive utilization |
-
2017
- 2017-10-27 CN CN201711023663.5A patent/CN107555695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10249101A (en) * | 1997-03-13 | 1998-09-22 | Kooyo Techno Kk | Liqiud concentrator |
| CN102560499A (en) * | 2012-02-03 | 2012-07-11 | 昆山市洁驰环保科技发展有限公司 | Device for recycling printed circuit board acidic etching solution |
| CN202688024U (en) * | 2012-08-03 | 2013-01-23 | 钱琳琪 | Device for recovering and concentrating waste liquid |
| CN105177583A (en) * | 2015-09-09 | 2015-12-23 | 成都虹华环保科技股份有限公司 | Method and system for circulating and regenerating zero-emission waste acidic etching solutions |
| CN106167250A (en) * | 2016-07-07 | 2016-11-30 | 中南大学 | A kind of acid CuCl2etching solution method of comprehensive utilization |
Non-Patent Citations (1)
| Title |
|---|
| 张军良等: "有机合成实验方法", 中国医药科技出版社, pages: 53 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106506A (en) * | 2019-06-01 | 2019-08-09 | 广东德同环保科技有限公司 | A kind of acidic etching liquid regeneration method |
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Application publication date: 20180109 |