Stock solution treatment device for preparing high-purity copper powder by recycling acidic etching waste liquid

Abstract

The utility model provides a stock solution treatment device for preparing high-purity copper powder by recovering acid etching waste liquid, which relates to the technical field of treatment devices and comprises a bottom plate, three support columns fixedly mounted at the top of the bottom plate, a heating box fixedly mounted among the tops of the three support columns, two heating pipes fixedly mounted at the bottom of the inner wall of the heating box, and a plurality of heating pipes fixedly mounted at the bottom of the inner wall of the heating box. A reaction kettle is fixedly mounted at the bottom of the inner wall of the heating box, a rotation driving groove is formed in the top of the reaction kettle, a rotation driving motor is fixedly inserted into the inner surface wall of the rotation driving groove, and a stirring shaft is fixedly connected to the output end of the rotation driving motor. According to the device, under the interaction of all the components of the device, the copper ion reduction reaction is ensured to be carried out uniformly, and the sufficiency of the chemical reaction is remarkably improved by combining multiple means such as heating, stirring and gas introduction, so that efficient and high-purity copper powder preparation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of processing devices, in particular to a stock solution processing device for recycling acidic etching waste liquid to prepare high-purity copper powder. Background Art

[0002] With the strengthening of global environmental protection awareness, waste liquid treatment in industrial production has become increasingly important. Acidic etching waste liquid, as a common pollutant in the electronics, printing and other industries, often contains a high concentration of copper ions. These copper ions have high economic value. The stock solution treatment device is mainly used to treat the acidic waste liquid generated by the etching process and recover high-purity copper powder from it.

[0003] In the process of recovering acidic etching waste liquid to prepare high-purity copper powder, most of the existing raw liquid treatment devices are unable to make the copper ion reduction reaction proceed evenly. This is mainly due to reaction kinetic limitations, mass transfer barriers and unsatisfactory reaction conditions. Reaction kinetic limitations may make the reduction rate of copper ions too slow, making it difficult to achieve complete conversion. Mass transfer barriers may hinder effective contact between reactants due to impurities and particulate matter in the waste liquid, resulting in uneven reaction. In addition, reaction conditions such as temperature and pH value may not be adjusted to the optimal state, which also affects the uniformity of the reaction. Due to these limitations, the copper ions in the waste liquid may not be completely converted into copper powder, resulting in a lower copper recovery rate. Summary of the invention

[0004] The purpose of the utility model is to solve the problem that when the above-mentioned equipment is in use, the copper ion reduction reaction cannot be carried out uniformly due to the stock solution treatment device during use, resulting in a reduced copper recovery rate, and thus a stock solution treatment device for recovering acid etching waste liquid to prepare high-purity copper powder is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder, comprising a base plate, three supporting columns are fixedly installed on the top of the base plate, a heating box is fixedly installed between the tops of the three supporting columns, two heating tubes are fixedly installed on the bottom of the inner wall of the heating box, a reactor is fixedly installed on the bottom of the inner wall of the heating box, a driving groove is opened on the top of the reactor, a driving motor is fixedly inserted into the inner wall of the driving groove, a stirring shaft is fixedly connected to the output end of the driving motor, a group of fixed seats are fixedly sleeved on the outer wall of the stirring shaft, and stirring blades are fixedly installed on the outer wall of a group of the fixed seats, a filling pipe is fixedly connected to the top of the reactor, a discharge pipe is fixedly connected to the output end of the reactor, and a discharge valve is movably inserted into the inner wall of the discharge pipe.

[0006] Preferably, the input end of the heating box is fixedly connected to a water inlet pipe, the input end of the water inlet pipe is fixedly connected to a first water pump, and the input end of the first water pump is fixedly connected to a connecting pipe.

[0007] Preferably, the input end of the connecting pipe is fixedly connected to a water tank, the input end of the water tank is fixedly connected to a water outlet pipe, and the output end of the heating box is fixedly connected to the input end of the water outlet pipe.

[0008] Preferably, a water outlet valve is movably inserted into the inner surface wall of the water outlet pipe, an air pump is fixedly installed on the top of the bottom plate, and the output end of the air pump is fixedly connected to an air pipe.

[0009] Preferably, the output end of the air pipe is fixedly connected to two one-way valves, and the output end of the water tank is fixedly connected to a delivery pipe.

[0010] Preferably, the output end of the delivery pipe is fixedly connected to a second water pump, and the output end of the second water pump is fixedly connected to a spray pipe.

[0011] Preferably, the outer wall of the spray pipe is fixedly connected to a group of spray heads.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the interaction of the components of the device ensures that the copper ion reduction reaction is carried out uniformly, and by combining multiple means such as heating, stirring and gas introduction, the sufficiency of the chemical reaction is significantly improved, thereby achieving efficient and high-purity copper powder preparation.

[0014] 2. In the utility model, the reaction kettle can be effectively cleaned after use through the interaction of various components of the equipment. The introduction of the hot water circulation system allows hot water to be recycled, which not only improves the energy utilization efficiency, but also effectively softens and removes the residues attached to the inner wall of the reaction kettle through high-pressure jet cleaning of hot water, ensuring that the inside of the reaction kettle is cleaned without dead corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a main structural stereogram of a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder;

[0016] Figure 2 The utility model provides a partial structural stereoscopic exploded diagram of a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder;

[0017] Figure 3 The utility model provides a partial structure side view stereoscopic exploded diagram of a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder;

[0018] Figure 4 The utility model provides a partial structural stereogram of a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder.

[0019] Legend:

[0020] 1. Bottom plate; 2. Support column; 3. Heating box; 4. Heating tube; 5. Reactor; 6. Driving tank; 7. Driving motor; 8. Stirring shaft; 9. Fixed seat; 10. Stirring blade; 11. Injection pipe; 12. Discharge pipe; 13. Discharge valve; 14. Water inlet pipe; 15. First water pump; 16. Connecting pipe; 17. Water tank; 18. Discharge pipe; 19. Discharge valve; 20. Air pump; 21. Air pipe; 22. One-way valve; 23. Delivery pipe; 24. Second water pump; 25. Spray pipe; 26. Nozzle. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a raw liquid processing device for recovering acid etching waste liquid to prepare high-purity copper powder, comprising a bottom plate 1, three support columns 2 are fixedly installed on the top of the bottom plate 1, a heating box 3 is fixedly installed between the tops of the three support columns 2, two heating tubes 4 are fixedly installed on the bottom of the inner wall of the heating box 3, a reaction kettle 5 is fixedly installed on the bottom of the inner wall of the heating box 3, a driving groove 6 is opened on the top of the reaction kettle 5, a driving motor 7 is fixedly inserted into the inner surface wall of the driving groove 6, a stirring shaft 8 is fixedly connected to the output end of the driving motor 7, a group of fixed seats 9 are fixedly sleeved on the outer wall of the stirring shaft 8, a group of fixing seats 9 are fixedly installed on the outer wall of the fixing seats 9, and a stirring blade 10 is fixedly installed on the top of the reaction kettle 5. A material injection pipe 11 is provided, and the output end of the reactor 5 is fixedly connected to a discharge pipe 12, and a discharge valve 13 is movably inserted into the inner wall of the discharge pipe 12, and an input end of the heating box 3 is fixedly connected to a water inlet pipe 14, and the input end of the water inlet pipe 14 is fixedly connected to a first water pump 15, and the input end of the first water pump 15 is fixedly connected to a connecting pipe 16, and the input end of the connecting pipe 16 is fixedly connected to a water tank 17, and the input end of the water tank 17 is fixedly connected to a water outlet pipe 18, and the output end of the heating box 3 is fixedly connected to the input end of the water outlet pipe 18, and a water outlet valve 19 is movably inserted into the inner wall of the water outlet pipe 18, and an air pump 20 is fixedly installed on the top of the bottom plate 1, and the output end of the air pump 20 is fixedly connected to an air pipe 21.

[0024] The effect achieved by the entire embodiment 1 is that after the device is powered on, the acidic etching waste liquid is first introduced into the reactor 5 through the injection pipe 11. Inside the reactor 5, the acidic etching waste liquid reacts chemically with the added reducing agent to reduce the copper ions in the waste liquid to copper powder. At this time, the control system starts the first water pump 15, and the first water pump 15 draws water from the water tank 17 and flows the water into the heating box 3 through the water inlet pipe 14. When the water inside the heating box 3 reaches a certain level, the control system starts the two heating tubes 4. The heat generated by the heating tubes 4 increases the water temperature, and then transfers the heat to the raw materials inside the reactor 5 through heat conduction, providing the required heat for the chemical reaction inside the reactor 5. The main function of heating is to accelerate the rate of the chemical reaction and promote the reduction reaction of the copper ions to proceed more fully and faster. At the same time, the control system starts the driving motor 7, and the output end of the driving motor 7 drives the stirring shaft 8 to rotate. The rotation of the stirring shaft 8 further drives a set of fixed seats 9 and three sets of stirring blades 1 0 rotation, the rotation function of the three groups of stirring blades 10 is to continuously stir and mix the materials inside the reactor 5 to ensure that the copper ions in the waste liquid can be evenly contacted and fully reacted with the reducing agent. Stirring can not only improve the mass transfer efficiency, but also help prevent the materials from precipitating or stratifying during the reaction process, thereby ensuring the efficient progress of the reaction. In addition, the control system simultaneously starts the air pump 20, and the air pump 20 generates gas through its internal mechanical principle and enters from the bottom of the reactor 5 through the air pipe 21. The function of these gases is to form bubbles inside the reactor 5 and float up. In the process, they are continuously mixed with the waste liquid to further promote the full contact and reaction of the substances in the waste liquid. The introduction of gas helps to break the interfacial tension in the liquid and increase the contact area between the materials, thereby accelerating the process of the chemical reaction. The entire device is designed to ensure that the copper ions in the acid etching waste liquid can be fully and evenly contacted with the reducing agent, improve the recovery rate of copper, and prepare high-purity copper powder through various means such as heating, stirring and gas introduction.

[0025] Embodiment 2, as Figure 2-Figure 4 As shown, the output end of the air pipe 21 is fixedly connected to two one-way valves 22, the output end of the water tank 17 is fixedly connected to a delivery pipe 23, the output end of the delivery pipe 23 is fixedly connected to a second water pump 24, the output end of the second water pump 24 is fixedly connected to a spray pipe 25, and the outer wall of the spray pipe 25 is fixedly connected to a group of nozzles 26.

[0026] The effect achieved by the entire embodiment 2 is that after the use of the stock solution treatment device for recovering the acid etching waste liquid to prepare high-purity copper powder is completed, a series of cleaning steps will be performed to ensure that the inside of the device is clean and ready for the next operation. First, the water outlet valve 19 is turned to allow the heated water inside the heating box 3 to flow back to the water tank 17 through the water outlet pipe 18 to achieve the recycling of hot water. Next, the discharge valve 13 is turned, and the copper powder and unreacted waste liquid remaining in the reactor 5 are discharged from the device through the discharge pipe 12, thereby achieving solid-liquid separation. However, due to the sediment or residue that may be generated during the chemical reaction, the reactor 5 It is inevitable that some difficult-to-remove substances will be attached to the inner wall. In order to thoroughly clean these attachments, the second water pump 24 is started at this time. The second water pump 24 draws warm water from the water tank 17 and applies pressure to the water so that the hot water flows into a group of nozzles 26 through the spray pipe 25. Under the action of the group of nozzles 26, the hot water is sprayed with high pressure to perform all-round and dead-angle flushing on the interior of the reactor 5. The advantage of this hot water cleaning method is that the warm water can effectively soften and remove the residues attached to the inner wall of the reactor 5. At the same time, the high-pressure spraying enhances the cleaning effect and ensures that the interior of the reactor 5 is thoroughly cleaned.

[0027] Working principle: After the device is powered on, the acidic etching waste liquid enters the reactor 5 through the injection pipe 11, reacts with the added reducing agent to reduce the copper ions to copper powder. At the same time, water is pumped from the water tank 17 through the first water pump 15 and introduced into the heating box 3. When the water temperature reaches the preset value, the two heating tubes 4 start to work to further increase the water temperature. The hot water then provides the required heat for the materials in the reactor 5 through heat conduction. At the same time, the driving motor 7 starts to drive the stirring shaft 8 and the three sets of stirring blades 10 thereon to rotate. This stirring action ensures that the materials in the reactor 5 can be evenly mixed and avoids the occurrence of precipitation or stratification. In addition, the control system simultaneously starts the air pump 20, which generates gas through its internal mechanical principle. And these gases are sent to the bottom of the reactor 5 through the air pipe 21. These gases form bubbles in the reactor 5 and float up, and are fully mixed with the waste liquid to increase the contact area between materials, thereby further promoting the chemical reaction. After the use of the device is over, the hot water in the heating box 3 is first circulated back to the water tank 17 through the water outlet valve 19, and then the copper powder and waste liquid in the reactor 5 are discharged through the discharge valve 13 to complete the solid-liquid separation. Since the chemical reaction may produce residues, the inner wall of the reactor 5 will be attached with difficult-to-remove substances. For this reason, the second water pump 24 is started, warm water is drawn from the water tank 17 and the reactor 5 is cleaned in the form of high-pressure spraying through the spray pipe 25 and the nozzle 26, which effectively softens and removes the residues to ensure that the interior is thoroughly cleaned in preparation for the next operation.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A liquid processing device for recovering acidic etching waste liquid to prepare high-purity copper powder, comprising a bottom plate (1), characterized in that: Three support columns (2) are fixedly mounted on the top of the bottom plate (1), a heating box (3) is fixedly mounted between the tops of the three support columns (2), two heating tubes (4) are fixedly mounted on the bottom of the inner wall of the heating box (3), a reaction kettle (5) is fixedly mounted on the bottom of the inner wall of the heating box (3), a driving groove (6) is opened on the top of the reaction kettle (5), a driving motor (7) is fixedly inserted into the inner wall of the driving groove (6), a stirring shaft (8) is fixedly connected to the output end of the driving motor (7), a group of fixed seats (9) are fixedly sleeved on the outer wall of the stirring shaft (8), and a group of stirring blades (10) are fixedly mounted on the outer wall of the fixed seats (9), a material injection pipe (11) is fixedly connected to the top of the reaction kettle (5), a material discharge pipe (12) is fixedly connected to the output end of the reaction kettle (5), and a material discharge valve (13) is movably inserted into the inner wall of the material discharge pipe (12).

2. The device for processing the raw liquid for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 1, characterized in that: The input end of the heating box (3) is fixedly connected to a water inlet pipe (14), the input end of the water inlet pipe (14) is fixedly connected to a first water pump (15), and the input end of the first water pump (15) is fixedly connected to a connecting pipe (16).

3. The device for processing the stock solution for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 2, characterized in that: The input end of the connecting pipe (16) is fixedly connected to a water tank (17), the input end of the water tank (17) is fixedly connected to a water outlet pipe (18), and the output end of the heating box (3) is fixedly connected to the input end of the water outlet pipe (18).

4. The device for processing the raw liquid for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 3, characterized in that: A water outlet valve (19) is movably inserted into the inner surface wall of the water outlet pipe (18), an air pump (20) is fixedly installed on the top of the bottom plate (1), and the output end of the air pump (20) is fixedly connected to an air pipe (21).

5. The device for processing the stock solution for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 4, characterized in that: The output end of the air pipe (21) is fixedly connected to two one-way valves (22), and the output end of the water tank (17) is fixedly connected to a delivery pipe (23).

6. The device for processing the stock solution for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 5, characterized in that: The output end of the delivery pipe (23) is fixedly connected to a second water pump (24), and the output end of the second water pump (24) is fixedly connected to a spray pipe (25).

7. The device for processing the raw liquid for recovering the acidic etching waste liquid to prepare high-purity copper powder according to claim 6, characterized in that: The outer wall of the spray pipe (25) is fixedly connected to a group of spray heads (26).

Images