CN210481520U

CN210481520U - Alkaline etching solution cyclic utilization system

Info

Publication number: CN210481520U
Application number: CN201921327663.9U
Authority: CN
Inventors: 袁胜巧; 谢付元; 付二龙
Original assignee: Anhui Lvzhou Danger Waste Comprehensive Utilization Co ltd
Current assignee: Anhui Lvzhou Danger Waste Comprehensive Utilization Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-08
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses an alkaline etching solution cyclic utilization system, including etching system, extraction system and allotment system, the etching system includes etching line and alkaline etching waste liquid groove, and the extraction system includes extraction tank, phase separation groove, organic phase groove, aqueous phase groove, back extraction groove, electrolysis trough and electrolytic copper hold up tank, the allotment system is including handling pond, allotment groove, mother liquor jar and transfer tank, be provided with the cotton core filter between extraction tank and the phase separation groove, organic phase groove and aqueous phase groove all are connected with the phase separation groove, be provided with the pure water washing tank between organic phase groove and the back extraction groove, be provided with the filter between electrolysis trough and the electrolytic copper hold up tank. The utility model discloses an adopt extraction and electrolysis, make alkaline etching solution become low concentration copper by high concentration copper, carry out analysis, allotment back again, recycle alkaline etching solution, not only reduced environmental pollution, realize the zero release, make the resource obtain recycling simultaneously.

Description

Alkaline etching solution cyclic utilization system

Technical Field

The utility model relates to an etching solution retrieves and recycles technical field, in particular to alkaline etching solution cyclic utilization system.

Background

In recent years, the global economic situation is continuously low, so that the sales of electronic products is reduced, most of printed board enterprises guided by exports are subjected to the fluctuating order quantity reduction, so that the order competition of the domestic market is aggravated, the price of the printed boards is reduced, the prices of various raw materials are greatly increased, the material purchasing cost of the printed board industry is increased year by year, the profit margin of the printed board industry is reduced, under the condition, the printed board enterprises are forced to open sources and throttle by various methods, the production cost is reduced, the material utilization rate is improved, and the benefit of the enterprises is increased. The alkaline etching is an important link in the production flow of the printed board, in the etching process of the printed board, an alkaline cuprammonium etching solution is generally adopted, a large amount of copper ions exist in waste liquor after etching, copper-containing etching waste liquor is a dangerous waste which has potential threat to the environment, when the copper ions in the etching solution reach a certain concentration, the copper ions are discharged as waste liquor, the etching waste liquor is collected and sold to a recycling company at low price, but ammonium chloride and ammonia in the solution can be continuously used, so the discharge of the etching solution not only can cause serious waste of resources, but also increases the material purchasing cost in the process of preparing the supplement liquid.

Therefore, it is necessary to develop a recycling system of alkaline etching solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an alkaline etching solution cyclic utilization system through adopting extraction and electrolysis, makes alkaline etching solution become low concentration copper by high concentration copper, carries out analysis, allotment back again, recycles alkaline etching solution circulation, has not only reduced environmental pollution, realizes the zero release, makes the resource obtain the circulation and recycles simultaneously to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an alkaline etching liquid cyclic utilization system, includes etching system, extraction system and allotment system, the etching system includes etching line and alkaline etching waste liquid groove, and the extraction system includes extraction tank, phase separation groove, organic phase groove, aqueous phase groove, back extraction groove, electrolysis trough and electrolytic copper holding vessel, the allotment system is including handling pond, allotment groove, mother liquor jar and transfer tank, be provided with the cotton core filter between extraction tank and the phase separation groove, organic phase groove and aqueous phase groove all are connected with the phase separation groove, be provided with the pure water washing pond between organic phase groove and the back extraction groove, be provided with the filter between electrolysis trough and the electrolytic copper holding vessel, be provided with same medicine equipment between handling pond and the allotment groove, handling pond and allotment groove all are connected with the mother liquor groove.

Preferably, a stirrer is arranged in the extraction tank, and a circulating pipeline is formed between the stripping tank and the extraction tank.

Preferably, the phase separation tank is arranged by using a separating funnel.

Preferably, the organic phase tank and the stripping tank are washed for three times by a pure water washing tank.

Preferably, the anode inside the electrolytic cell is made of a zinc plate material, and the cathode inside the electrolytic cell is made of a stainless steel material.

Preferably, ammonia and ammonium chloride are arranged inside the dosing device.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a mode that extraction and electrolysis combined together, copper line in the alkaline etching waste liquid is through the extraction, pass through the electrolysis again, extract most, thereby effectual messenger alkaline etching solution becomes low concentration copper by high concentration copper, each composition content after handling is analyzed again, the allotment back, throw the people once more and use in the production, be used for preparing new etching solution, recycle alkaline etching solution, not only reduced environmental pollution, realize the zero release, make the resource obtain the circulation and recycle simultaneously, and for the cost is reduced of enterprise.

Drawings

Fig. 1 is a schematic view of the overall flow structure of the present invention.

In the figure: 1. etching a line; 2. an alkaline etching waste liquid tank; 3. an extraction tank; 4. a phase separation tank; 5. an organic phase tank; 6. an aqueous phase tank; 7. a stripping tank; 8. an electrolytic cell; 9. an electrolytic copper storage tank; 10. a treatment tank; 11. A blending tank; 12. a mother liquor tank; 13. a transfer tank; 14. a cotton core filter; 15. a pure water washing tank; 16. A filter; 17. and (5) dosing equipment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an alkaline etching solution cyclic utilization system as shown in figure 1, including etching system, extraction system and allotment system, the etching system includes etching line 1 and alkaline etching waste liquid groove 2, and the extraction system includes extraction tank 3, phase separation groove 4, organic phase groove 5, aqueous phase groove 6, stripping tank 7, electrolysis trough 8 and electrolytic copper holding vessel 9, the allotment system includes processing pond 10, allotment groove 11, mother liquor jar 12 and transfer tank 13, be provided with cotton core filter 14 between extraction tank 3 and the phase separation groove 4, through cotton core filter 14, filter the precipitate of extraction and collect, organic phase groove 5 and aqueous phase groove 6 all are connected with phase separation groove 4, be provided with pure water washing tank 15 between organic phase groove 5 and the stripping tank 7, through being equipped with pure water washing tank 15, be favorable to carrying out a lot of washings with the organic phase, the back extraction effect is enhanced, a filter 16 is arranged between the electrolytic cell 8 and the electrolytic copper storage tank 9, the same dosing equipment 17 is arranged between the treatment tank 10 and the blending tank 11, the treatment tank 10 and the blending tank 11 are both connected with the mother liquor tank, the copper wires in the alkaline etching waste liquor are extracted through extraction and electrolysis by adopting a mode of combining extraction and electrolysis, most of the copper wires are extracted through electrolysis, so that the alkaline etching liquor is effectively changed from high-concentration copper to low-concentration copper, and the treated components are analyzed and blended, and then put into production again for use to prepare new etching liquor.

Further, in the above technical scheme, a stirrer is arranged in the extraction tank 3, a circulation pipeline is formed between the back extraction tank 7 and the extraction tank 3, and the back-extracted extractant is reused, so that energy loss is reduced;

further, in the above technical solution, the phase separation tank 4 is provided with a separating funnel;

further, in the technical scheme, the organic phase tank 5 and the stripping tank 7 are washed for three times by the pure water washing tank 15, so that the organic phase is washed for multiple times, and the stripping effect is enhanced;

further, in the above technical solution, the anode inside the electrolytic cell 8 is made of a zinc plate material, the cathode inside the electrolytic cell 8 is made of a stainless steel material, and the anode is made of a zinc plate material, so as to enhance the electrolytic efficiency;

further, in the above technical solution, ammonia and ammonium chloride are disposed inside the chemical adding device 17.

This practical theory of operation:

referring to the attached figure 1 of the specification, collecting alkaline etching waste liquid generated by an etching line 1 through an alkaline etching waste liquid tank 2, adding the alkaline etching waste liquid into an extraction tank 3, adding an extracting agent, extracting the alkaline etching waste liquid to prepare an organic phase, an aqueous phase and a precipitate, filtering the precipitate by using a cotton core filter 14, separating the organic phase and the aqueous phase into an organic phase tank 5 and an aqueous phase tank 6 through a phase separation tank 4 respectively, washing the organic phase in the organic phase tank 5 for three times through a pure water washing tank 15, adding the organic phase into a back extraction tank 7, back extracting the organic phase, adding the extracted mother liquid and the extracting agent into an electrolytic tank 8 and the extraction tank 3 respectively, electrolyzing the mother liquid in the electrolytic tank 8 to generate electrolytic copper and waste liquid with low copper content, collecting and storing the electrolytic copper, adding the waste liquid into a treatment tank 10, meanwhile, the water phase in the water phase tank 6 is added into a blending tank 11, ammonia and ammonium chloride are respectively added into a treatment tank 10 and the blending tank 11 through a dosing device, waste liquid and the water phase are blended into new etching liquid, then the new etching liquid is collected into a mother liquid tank 12 to be stored, and when the etching liquid needs to be used, the new etching liquid in the mother liquid tank 12 is conveyed to the etching line 1 through a transfer tank 13 to be used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The alkaline etching solution recycling system comprises an etching system, an extraction system and a distribution system, and is characterized in that: the etching system comprises an etching line (1) and an alkaline etching waste liquid tank (2), the extraction system comprises an extraction tank (3), a phase separation tank (4), an organic phase tank (5), a water phase tank (6), a back extraction tank (7), an electrolytic tank (8) and an electrolytic copper storage tank (9), the allocation system comprises a treatment tank (10), an allocation tank (11), a mother liquid tank (12) and a transfer tank (13), a cotton core filter (14) is arranged between the extraction tank (3) and the phase separation tank (4), the organic phase tank (5) and the water phase tank (6) are both connected with the phase separation tank (4), a pure water washing tank (15) is arranged between the organic phase tank (5) and the back extraction tank (7), a filter (16) is arranged between the electrolytic tank (8) and the electrolytic copper dosing storage tank (9), and the same equipment (17) is arranged between the treatment tank (10) and the allocation tank (11), the treatment tank (10) and the blending tank (11) are both connected with a mother liquid tank.

2. The alkaline etching solution recycling system according to claim 1, wherein: a stirrer is arranged in the extraction tank (3), and a circulating pipeline is formed between the back extraction tank (7) and the extraction tank (3).

3. The alkaline etching solution recycling system according to claim 1, wherein: the phase separation tank (4) is arranged by adopting a separating funnel.

4. The alkaline etching solution recycling system according to claim 1, wherein: and the organic phase tank (5) and the back extraction tank (7) are washed for three times by a pure water washing tank (15).

5. The alkaline etching solution recycling system according to claim 1, wherein: the anode in the electrolytic tank (8) is made of a zinc plate material, and the cathode in the electrolytic tank (8) is made of a stainless steel material.

6. The alkaline etching solution recycling system according to claim 1, wherein: and ammonia and ammonium chloride are arranged in the dosing equipment (17).