CN215028310U - Copper recovery device - Google Patents
Copper recovery device Download PDFInfo
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- CN215028310U CN215028310U CN202121114264.1U CN202121114264U CN215028310U CN 215028310 U CN215028310 U CN 215028310U CN 202121114264 U CN202121114264 U CN 202121114264U CN 215028310 U CN215028310 U CN 215028310U
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- preconditioner
- waste liquid
- etching waste
- neutralization reactor
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Abstract
The application discloses copper recovery unit includes: the first preprocessor is used for preprocessing the acidic copper etching waste liquid; a second preprocessor for preprocessing the alkaline copper etching waste liquid; a neutralization reactor in communication with the first preconditioner and the second preconditioner, wherein the acidic copper etching waste liquor pretreated in the first preconditioner and the alkaline copper etching waste liquor pretreated in the second preconditioner flow into the neutralization reactor for reaction to produce a recoverable copper-containing compound; and an air agitator in communication with the first preconditioner, the second preconditioner, and the neutralization reactor, wherein the air agitator agitates the liquid in the first preconditioner, the second preconditioner, and the neutralization reactor by air conduction. The device of this application is through the mode of air stirring, fully promotes acid copper etching waste liquid and alkaline copper etching waste liquid to carry out the reaction of preliminary treatment and follow-up fusion to improve the recovery volume of copper-containing compound.
Description
Technical Field
The application relates to the technical field of waste recovery, especially, relate to a copper recovery unit.
Background
The etching waste liquid is generated in the process of dissolving copper by a chemical corrosion method in the etching process of the printed circuit board, and is divided into acid and alkali according to the acidity and alkalinity. Such waste liquid causes serious environmental pollution and great economic waste if not properly treated and utilized. The general treatment method is as follows: extracting copper from the acid-base copper etching waste liquid to produce basic copper chloride, copper sulfate, copper oxide or organic copper and other products. In order to prepare high-purity copper products, acidic and alkaline etching waste liquids are generally pretreated respectively to remove impurities such as arsenic and lead. Then the acid and alkali etching waste liquor is made to produce neutralization reaction to produce basic copper chloride, and after one-step reaction, the copper oxide and copper sulfate can be prepared.
In the prior pretreatment and neutralization reaction of the acid-base copper etching waste liquid, mechanical stirring equipment is adopted to stir the acid-base copper etching waste liquid. The mechanical stirring equipment has the problems of large volume, easy corrosion and the like, and has high cost, and frequent maintenance or replacement is needed, so that the operation and maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a copper recovery unit can stir acid-base copper etching waste liquid through the air, makes it fully carry out preliminary treatment and reaction to improve the copper recovery volume.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the utility model provides a copper recovery unit, include:
the first preprocessor is used for preprocessing the acidic copper etching waste liquid;
a second preprocessor for preprocessing the alkaline copper etching waste liquid;
a neutralization reactor in communication with the first preconditioner and the second preconditioner, wherein the acidic copper etching waste liquor pretreated in the first preconditioner and the alkaline copper etching waste liquor pretreated in the second preconditioner flow into the neutralization reactor for reaction to produce a recoverable copper-containing compound;
an air agitator in communication with the first preconditioner, the second preconditioner, and the neutralization reactor, wherein the air agitator agitates the liquids in the first preconditioner, the second preconditioner, and the neutralization reactor by air conduction.
Optionally, the neutralization reactor is respectively communicated with the first preprocessor and the second preprocessor through a pipeline mixer, wherein the acidic copper etching waste liquid pretreated in the first preprocessor and the alkaline copper etching waste liquid pretreated in the second preprocessor flow into the neutralization reactor after preliminary reaction is carried out through the pipeline mixer.
Optionally, a steam heater in communication with at least one of the first preconditioner, the second preconditioner, and the neutralization reactor, the steam heater heating the first preconditioner, the second preconditioner, and the neutralization reactor by steam conduction.
Optionally, the utility model discloses a copper recovery unit still includes: thermometers disposed in the first preconditioner, second preconditioner, and neutralization reactor; wherein the steam heater conducts steam to the first preconditioner according to a measured temperature value of the first preconditioner provided by a thermometer, conducts steam to the second preconditioner according to a measured temperature value of the second preconditioner provided by a thermometer, and conducts steam to the neutralization reactor according to a measured temperature value of the neutralization reactor provided by a thermometer.
Optionally, the utility model discloses a copper recovery unit still includes:
a flow controller for controlling the addition of acidic copper etching waste liquid to the first preconditioner, for controlling the addition of alkaline copper etching waste liquid to the alkaline copper etching waste liquid preconditioner, and for controlling the flow of acidic copper etching waste liquid pretreated in the first preconditioner and alkaline copper etching waste liquid pretreated in the second preconditioner to the neutralization reactor.
Optionally, the utility model discloses a copper recovery unit still includes: a PH meter disposed in the first preconditioner, the second preconditioner, and the neutralization reactor; wherein the flow controller controls the addition of the acidic copper etching waste liquid to the first preconditioner based on a pH measurement of the first preconditioner provided by a pH meter, controls the addition of the alkaline copper etching waste liquid to the second preconditioner based on a pH measurement of the second preconditioner provided by a pH meter, and controls the flow of the acidic copper etching waste liquid pretreated in the first preconditioner and the alkaline copper etching waste liquid pretreated in the second preconditioner into the neutralization reactor based on a pH measurement of the neutralization reactor provided by a pH meter.
Optionally, the top of the first preprocessor is provided with an acidic copper etching waste liquid feeding hole, an exhaust hole, a steam inlet communicated with the steam heater, and an air inlet communicated with the air stirrer, and the bottom of the first preprocessor is provided with an acidic copper etching waste liquid discharging hole communicated with the neutralization reactor.
Optionally, the top of the second preprocessor is provided with an alkaline copper etching waste liquid inlet, an exhaust port, a steam inlet communicated with the steam heater, and an air inlet communicated with the air stirrer, and the bottom of the second preprocessor is provided with an alkaline copper etching waste liquid outlet communicated with the neutralization reactor.
Optionally, the upper part of the neutralization reactor is provided with: the device comprises a feed inlet, an exhaust outlet, a steam inlet and an air inlet, wherein the feed inlet is used for feeding acidic copper etching waste liquid and alkaline copper etching waste liquid, the steam inlet is communicated with the steam heater, the air inlet is communicated with the air stirrer, and a discharge outlet for copper-containing compounds is arranged at the bottom of the neutralization reactor.
Optionally, the copper recovery device of the embodiment of the present application further includes: a housing, the first preconditioner, the second preconditioner, and the neutralization reactor being disposed within the housing, and the first preconditioner and the second preconditioner being disposed above the neutralization reactor.
The utility model discloses a device fully promotes the reaction that acid copper etching waste liquid and alkaline copper etching waste liquid carry out preliminary treatment and follow-up fusion through the mode of air stirring to improve the recovery capacity of copper-containing compound. Compared with the traditional mechanical stirring mode, the problem that frequent maintenance is needed due to the fact that the mechanical stirrer is prone to corrosion is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a first structure of a copper recovery apparatus provided in the present invention;
FIG. 2 is a schematic view of a second structure of the copper recovery apparatus provided in the present invention;
fig. 3 is a third schematic structural diagram of the copper recovery device provided by the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 application.
As described above, when the conventional acid-base copper etching waste liquid is subjected to pretreatment and neutralization reaction, mechanical stirring equipment is required to stir the acid-base copper etching waste liquid. The mechanical stirring equipment has the problems of large volume, easy corrosion and the like, and has high cost, and frequent maintenance or replacement is needed, so that the operation and maintenance cost is high. In view of this problem, the present application aims to provide an air-agitated copper recovery apparatus.
Fig. 1 and 2 are schematic structural views of a copper recovery apparatus according to an embodiment of the present application, including:
a first preprocessor 1 for preprocessing the acidic copper etching waste liquid.
A second preconditioner 2 for pretreating the alkaline copper etching waste liquid.
A neutralization reactor 3 in communication with the first preconditioner 1 and the second preconditioner 2, wherein the acidic copper etching waste liquor pretreated in the first preconditioner 1 and the alkaline copper etching waste liquor pretreated in the second preconditioner 2 flow into the neutralization reactor 3 to react to produce a recoverable copper-containing compound, such as copper chloride.
An air agitator 4 in communication with the first preconditioner 1, the second preconditioner 2 and the neutralization reactor 3, wherein the air agitator 4 agitates the liquids in the first preconditioner 1, the second preconditioner 2 and the neutralization reactor 3 by air conduction.
It can be seen that the device of the embodiment of the application fully promotes the reaction of pretreatment and subsequent fusion of the acidic copper etching waste liquid and the alkaline copper etching waste liquid in an air stirring manner, thereby improving the recovery amount of the copper-containing compound. Compared with the traditional mechanical stirring mode, the problem that frequent maintenance is needed due to the fact that the mechanical stirrer is prone to corrosion is solved.
Further, in order to improve the pretreatment effect and subsequent neutralization effect of the acidic copper etching waste liquid and the alkaline copper etching waste liquid, the copper recovery apparatus of the embodiment of the present application may further include a steam heater 5 in communication with at least one of the first pretreater 1, the second pretreater 2 and the neutralization reactor 3, wherein the steam heater 5 heats the first pretreater 1, the second pretreater 2 and the neutralization reactor 3 by steam conduction to promote the pretreatment and neutralization reactions. For example, the temperatures in the first preconditioner 1, the second preconditioner 2 and the neutralization reactor 3 are stabilized at 60-70 deg.f. It is understood that the structure of the copper recovery apparatus can be simplified by vapor conduction heating, and corrosion of the components by the etching waste liquid can be avoided.
In practical application, the copper recovery device of the embodiment of the present application further includes: thermometers provided in the first preconditioner 1, second preconditioner 2 and neutralization reactor 3; wherein the steam heater 5 conducts steam to the first preconditioner 1 according to a measured temperature value of the first preconditioner 1 provided by a thermometer, conducts steam to the second preconditioner 2 according to a measured temperature value of the second preconditioner 2 provided by a thermometer, and conducts steam to the neutralization reactor 3 according to a measured temperature value of the neutralization reactor 3 provided by a thermometer.
In addition, in order to improve the pretreatment effect of the acidic copper etching waste liquid and the alkaline copper etching waste liquid and the subsequent neutralization effect, the copper recovery apparatus according to the embodiment of the present application may further include a flow controller (not shown in the figure) for controlling the addition of the acidic copper etching waste liquid to the first preprocessor 1, the addition of the alkaline copper etching waste liquid to the alkaline copper etching waste liquid preprocessor, and the flow of the acidic copper etching waste liquid pretreated in the first preprocessor 1 and the alkaline copper etching waste liquid pretreated in the second preprocessor 2 to the neutralization reactor 3.
The flow controller controls the flow of the acidic copper etching waste liquid and the flow of the alkaline copper etching waste liquid so as to ensure that the pretreatment and the neutralization reaction are at a proper pH value. For example, the pH in the first preconditioner 1 is maintained at 0-2, the pH in the second preconditioner 22 is maintained at 8-10, and the pH in the neutralization reactor 3 is maintained at 3-5.
In practical application, the copper recovery device of the embodiment of the present application further includes: a PH meter provided in the first preconditioner 1, the second preconditioner 2, and the neutralization reactor 3; wherein the flow controller controls the addition of the acidic copper etching waste liquid to the first preconditioner 1 according to the PH measurement value of the first preconditioner 1 provided by a PH meter, controls the addition of the alkaline copper etching waste liquid to the second preconditioner 2 according to the PH measurement value of the second preconditioner 2 provided by a PH meter, and controls the flow of the acidic copper etching waste liquid pretreated in the first preconditioner 1 and the flow of the alkaline copper etching waste liquid pretreated in the second preconditioner 2 to the neutralization reactor 3 according to the PH measurement value of the neutralization reactor 3 provided by a PH meter.
In addition, in order to improve the neutralization efficiency of the acidic copper etching waste liquid and the alkaline copper etching waste liquid, the neutralization reactor 3 is respectively communicated with the first preprocessor 1 and the second preprocessor 2 through a pipeline mixer, wherein the acidic copper etching waste liquid pretreated in the first preprocessor 1 and the alkaline copper etching waste liquid pretreated in the second preprocessor 2 flow into the neutralization reactor 3 for full reaction after preliminary reaction through the pipeline mixer. It is understood that the acidic copper etching waste liquid and the alkaline copper etching waste liquid are sufficiently merged by flowing them into the neutralization reactor 3 through the line mixer, thereby improving the neutralization reaction effect.
The copper recovery apparatus according to the embodiment of the present application will be described in detail below.
Fig. 2 and 3 show a specific structure of a copper recovery apparatus according to an embodiment of the present invention. The first preprocessor 1, the second preprocessor 2 and the neutralization reactor 3 of the copper recovery device of the embodiment of the application are arranged in the shell of the copper recovery device, and the first preprocessor 1 and the second preprocessor 2 are arranged above the neutralization reactor 3.
Wherein:
the top of the first preprocessor 1 is provided with an acidic copper etching waste liquid inlet 101, an air outlet 102, an air inlet 104 communicated with the air stirrer, a steam inlet 105 communicated with the steam heater, a thermometer 106 and a pH meter 107, and the bottom of the first preprocessor 1 is provided with an acidic copper etching waste liquid outlet 103 communicated with the neutralization reactor 3.
The top of the second preprocessor is provided with an alkaline copper etching waste liquid inlet 201, an exhaust port 202, an air inlet 204 communicated with the air stirrer, a steam inlet 205 communicated with the steam heater, a thermometer 206 and a pH meter 207, and the bottom of the second preprocessor is provided with an alkaline copper etching waste liquid outlet 203 communicated with the neutralization reactor.
The upper part of the neutralization reactor is provided with: a feed inlet 301 for acidic copper etching waste liquid and alkaline copper etching waste liquid, an exhaust outlet 302, an air inlet 304 communicated with the air-type stirrer, a steam inlet 305 communicated with the steam-type heater, a thermometer 306 and a pH meter 307, and a discharge outlet 303 for copper-containing compound is arranged at the bottom of the neutralization reactor.
Based on the design, acidic etching waste liquid is added into the first preprocessor through the feeding hole 101, and steam is sprayed into the first preprocessor through the steam inlet 105 to heat the acidic etching liquid, so that the temperature in the first preprocessor is ensured to be stabilized at 60-70 ℃. Air is injected through air inlet 104 to agitate the acidic spent etching solution. The adding amount of the acidic etching waste liquid is controlled by a pH meter, so that the pH value in the first preprocessor is kept between 0 and 2.
Alkaline waste etching solution is added into the second preprocessor through the feed inlet 201, and steam is sprayed into the second preprocessor through the steam inlet 205 to heat the alkaline waste etching solution, so that the temperature in the second preprocessor is ensured to be stabilized at 60-70 ℃. Air is injected through the air inlet 204 to agitate the alkaline spent etching solution. And controlling the addition amount of the alkaline etching waste liquid by a pH meter to keep the pH value in the second preprocessor between 8 and 10.
The waste acidic etching solution is discharged from the discharge port 103, the waste alkaline etching solution is discharged from the discharge port 203, and the waste acidic etching solution and the waste alkaline etching solution are mixed in a pipeline and then enter the neutralization reactor from the feed port 301. Steam is sprayed into the neutralization reactor through a steam inlet 305 to heat the acid-base etching mixed solution, so as to ensure that the temperature in the neutralization reactor is stabilized at 60-70 ℃. Air is injected through air inlet 304 to agitate the acid-base etching mixture. The adding amount of the alkaline etching waste liquid and the alkaline etching waste liquid is controlled by a pH meter, so that the pH value in the neutralization reactor is kept between 3 and 5.
The acidic etching waste liquid discharge port and the alkaline etching waste liquid discharge port are connected to the pipeline mixer through a guide pipe, and the acidic etching waste liquid and the alkaline etching waste liquid enter the neutralization reactor after preliminary reaction in the pipeline mixer. The acid-base etching waste liquid reacts in the neutralization reactor to generate basic copper chloride, and is discharged from a discharge port 303, and a subsequent treatment process is performed as required.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Further, the copper recovery apparatus of the embodiment of the present application is not related to the improvement in the computer program. In particular, the control of the temperature by the steam heater and the control of the PH by the flow controller can be realized based on the functions of the existing hardware, and are not described herein again.
Claims (10)
1. A copper recovery device, comprising:
the first preprocessor is used for preprocessing the acidic copper etching waste liquid;
a second preprocessor for preprocessing the alkaline copper etching waste liquid;
a neutralization reactor in communication with the first preconditioner and the second preconditioner, wherein the acidic copper etching waste liquor pretreated in the first preconditioner and the alkaline copper etching waste liquor pretreated in the second preconditioner flow into the neutralization reactor for reaction to produce a recoverable copper-containing compound;
an air agitator in communication with the first preconditioner, the second preconditioner, and the neutralization reactor, wherein the air agitator agitates the liquids in the first preconditioner, the second preconditioner, and the neutralization reactor by air conduction.
2. The copper recovery apparatus of claim 1,
the neutralization reactor is respectively communicated with the first preprocessor and the second preprocessor through a pipeline mixer, wherein the acidic copper etching waste liquid pretreated in the first preprocessor and the alkaline copper etching waste liquid pretreated in the second preprocessor flow into the neutralization reactor after preliminary reaction is carried out on the acidic copper etching waste liquid and the alkaline copper etching waste liquid through the pipeline mixer.
3. The copper recovery apparatus of claim 1, further comprising:
a steam heater in communication with at least one of the first preconditioner, the second preconditioner, and the neutralization reactor, the steam heater heating the first preconditioner, the second preconditioner, and the neutralization reactor by steam conduction.
4. The copper recovery apparatus of claim 3, further comprising:
thermometers disposed in the first preconditioner, second preconditioner, and neutralization reactor;
wherein the steam heater conducts steam to the first preconditioner according to a measured temperature value of the first preconditioner provided by a thermometer, conducts steam to the second preconditioner according to a measured temperature value of the second preconditioner provided by a thermometer, and conducts steam to the neutralization reactor according to a measured temperature value of the neutralization reactor provided by a thermometer.
5. The copper recovery apparatus of claim 1, further comprising:
a flow controller for controlling the addition of acidic copper etching waste liquid to the first preconditioner, for controlling the addition of alkaline copper etching waste liquid to the alkaline copper etching waste liquid preconditioner, and for controlling the flow of acidic copper etching waste liquid pretreated in the first preconditioner and alkaline copper etching waste liquid pretreated in the second preconditioner to the neutralization reactor.
6. The copper recovery apparatus of claim 5, further comprising:
a PH meter disposed in the first preconditioner, the second preconditioner, and the neutralization reactor;
wherein the flow controller controls the addition of the acidic copper etching waste liquid to the first preconditioner based on a pH measurement of the first preconditioner provided by a pH meter, controls the addition of the alkaline copper etching waste liquid to the second preconditioner based on a pH measurement of the second preconditioner provided by a pH meter, and controls the flow of the acidic copper etching waste liquid pretreated in the first preconditioner and the alkaline copper etching waste liquid pretreated in the second preconditioner into the neutralization reactor based on a pH measurement of the neutralization reactor provided by a pH meter.
7. The copper recovery apparatus of claim 3,
the top of the first preprocessor is provided with an acid copper etching waste liquid feeding hole, an exhaust hole, a steam inlet communicated with the steam heater and an air inlet communicated with the air stirrer, and the bottom of the first preprocessor is provided with an acid copper etching waste liquid discharging hole communicated with the neutralization reactor.
8. The copper recovery apparatus of claim 3,
the top of the second preprocessor is provided with an alkaline copper etching waste liquid feeding hole, an exhaust hole, a steam inlet communicated with the steam heater and an air inlet communicated with the air stirrer, and the bottom of the second preprocessor is provided with an alkaline copper etching waste liquid discharging hole communicated with the neutralization reactor.
9. The copper recovery apparatus of claim 3,
the upper part of the neutralization reactor is provided with: the device comprises a feed inlet, an exhaust outlet, a steam inlet and an air inlet, wherein the feed inlet is used for feeding acidic copper etching waste liquid and alkaline copper etching waste liquid, the steam inlet is communicated with the steam heater, the air inlet is communicated with the air stirrer, and a discharge outlet for copper-containing compounds is arranged at the bottom of the neutralization reactor.
10. The copper recovery apparatus of any one of claims 1-9, further comprising:
a housing, the first preconditioner, the second preconditioner, and the neutralization reactor being disposed within the housing, and the first preconditioner and the second preconditioner being disposed above the neutralization reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121114264.1U CN215028310U (en) | 2021-05-21 | 2021-05-21 | Copper recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121114264.1U CN215028310U (en) | 2021-05-21 | 2021-05-21 | Copper recovery device |
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| CN215028310U true CN215028310U (en) | 2021-12-07 |
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| CN202121114264.1U Active CN215028310U (en) | 2021-05-21 | 2021-05-21 | Copper recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385504A (en) * | 2022-08-20 | 2022-11-25 | 杭州豪腾科技有限公司 | Comprehensive utilization process and system for acid-base etching solution |
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2021
- 2021-05-21 CN CN202121114264.1U patent/CN215028310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385504A (en) * | 2022-08-20 | 2022-11-25 | 杭州豪腾科技有限公司 | Comprehensive utilization process and system for acid-base etching solution |
| CN115385504B (en) * | 2022-08-20 | 2024-03-29 | 杭州豪腾科技有限公司 | Comprehensive utilization process and system for acid-base etching solution |
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