Treatment device for recovering copper from electrolytic copper waste liquid

Abstract

The utility model provides a treatment device for recovering copper from electrolytic copper waste liquid, and belongs to the technical field of electrolytic copper waste liquid treatment. Comprising a first adjusting tank, a replacement sequencing batch reaction tank, a plate-and-frame filter press and a second adjusting tank, the copper-containing waste liquid enters the first adjusting tank for aeration treatment and then enters the replacement sequencing batch reaction tank through a pipeline to react with iron powder, and copper-containing sludge generated after the reaction is pumped into the plate-and-frame filter press through a sludge pump for solid-liquid separation. Through the arrangement of the stirring mechanism, the flow guide cover drives the flow guide plate to reciprocate in the aeration process, so that bubbles and waste liquid pass through the flow guide plate in the flow guide cover, the bubbles are better dispersed in the waste liquid through the flow guide plate, the contact area of oxygen in the bubbles and the waste liquid is increased, and the oxidation reaction efficiency in the waste liquid is improved; meanwhile, the water flow can turn over upwards after passing through the guide plate, so that the waste liquid is in full contact with air, the oxidation reaction efficiency in the waste liquid is further improved, and the aeration effect on the waste liquid is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic copper waste liquid treatment, in particular to a treatment device for recovering copper from electrolytic copper waste liquid. Background Art

[0002] After the circuit board alkaline etching solution, acid etching solution, browning solution, micro-etching solution and other high-copper liquids are extracted by conventional electrolysis, the remaining waste liquid still contains copper. If the waste liquid directly enters the sewage treatment system, it will have a great impact on the load of the system and easily cause the water quality to be unable to meet the standard. Therefore, the electrolytic copper waste liquid needs to be treated again. When treating, the electrolytic copper waste liquid from the production workshop is first collected into the regulating tank, and the electrolytic copper waste liquid is aerated for a period of time through the aerator to be evenly conditioned, and then the waste liquid in the regulating tank is pumped to the displacement batch reaction tank. The sludge is then pumped to a plate and frame filter press through a sludge pump for dehydration to achieve solid-liquid separation. The dehydrated copper-containing sludge is collected in ton bags and waits for external recycling. The filtrate from the plate and frame filter press flows through a diversion pipe to the regulating tank of the sewage treatment system to be mixed with other waste liquids with low electrolytic copper content for treatment, which greatly reduces the copper content in the waste liquid, improves the copper removal rate of the electrolytic copper waste liquid, and reduces the impact load of the sewage treatment system.

[0003] A search revealed patent publication number CN212799850U, which discloses a microporous aeration regulating tank for sewage treatment. The tank comprises a tank body and a main air pipe disposed at the tank body port. One end of the main air pipe is closed and disposed along one side of the tank body port. A branch pipe is disposed on the main air pipe. An aeration assembly is mounted on the bottom of the tank body. The air inlet of the aeration assembly is connected to the air outlet of the branch pipe. A blower is mounted on the other end of the main air pipe. The blower's air inlet is provided with an air inlet cylinder. The air inlet cylinder contains a desiccant and an air filter. The desiccant covers the blower's air inlet, while the air filter covers the air inlet of the cylinder. The air filter purifies the air entering the aerator, reducing the risk of aerator blockage and extending its service life.

[0004] The above patent uses an aerator to aerate the waste liquid, but the waste liquid is only aerated by the aerator in the regulating tank. There is a situation where the oxygen in the bubbles is not mixed thoroughly with the waste liquid, and the aeration effect of the waste liquid needs to be improved. Therefore, this application provides a processing device for recovering copper from electrolytic copper waste liquid to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a processing device for recovering copper from electrolytic copper waste liquid to solve the problem that the waste liquid is only aerated by the aerator in the regulating tank, the mixing of oxygen in the bubbles and the waste liquid is not thorough enough, and the aeration effect of the waste liquid needs to be improved.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A treatment device for recovering copper from electrolytic copper waste liquid comprises a first regulating tank, a displacement sequencing batch reaction tank, a plate-frame filter press, and a second regulating tank. Copper-containing waste liquid enters the first regulating tank for aeration treatment and then enters the displacement sequencing batch reaction tank through a pipeline to react with iron powder. The copper-containing sludge generated after the reaction is pumped into the plate-frame filter press by a sludge pump for solid-liquid separation. The filtrate is sent to the second regulating tank of a sewage treatment system through a pipeline for treatment. The device also comprises:

[0008] The stirring mechanism includes a driving member arranged on the regulating tank and a guide cover arranged in the regulating tank, the driving member is used to drive the guide cover to reciprocate along the long direction of the regulating tank, the driving member is threadedly connected to a bracket, the driving member is used to drive a connecting rod fixed to the bottom of the bracket, the guide cover is fixed to the bottom of the connecting rod, a guide plate is rotatably connected inside the guide cover, a protective shell and a servo are respectively fixed to the side of the guide cover, the servo is located in the protective shell, the output end of the servo is fixedly connected to the side of the guide plate, and the servo is used to adjust the angle of the guide plate.

[0009] Preferably, gathering covers are fixed on both sides of the air deflector, and the opening of the gathering cover on the side away from the air deflector is larger than the opening on the side close to the air deflector.

[0010] Preferably, there are two connecting rods, and the connecting rods are diamond-shaped.

[0011] Preferably, the guide plate is provided with an arc-shaped guide surface.

[0012] Preferably, guide strips are fixed on both sides of the guide plate.

[0013] Preferably, the guide strip is in the shape of a right triangle, and the hypotenuse of the guide strip is used for guiding flow.

[0014] Preferably, a floating plate is slidably sleeved on the connecting rod.

[0015] Preferably, both sides of the floating plate are curved surfaces.

[0016] Preferably, floating bars are fixed on both sides of the floating plate.

[0017] Preferably, the top of the floating strip is a slope.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, through the setting of the stirring mechanism, during the aeration process, the guide cover drives the guide plate to move back and forth, so that bubbles and waste liquid pass through the guide plate inside the guide cover. The bubbles are better dispersed in the waste liquid through the guide plate, increasing the contact area between the oxygen in the bubbles and the waste liquid, and improving the oxidation reaction efficiency in the waste liquid. At the same time, the water flow will surge upward after passing through the guide plate, so that the waste liquid is fully in contact with the air, further improving the oxidation reaction efficiency in the waste liquid, thereby improving the aeration effect of the waste liquid.

[0020] Through the setting of the float plate, the float plate floats on the waste liquid, and foam is generated during the aeration process. The float plate can scrape off the foam on the waste liquid during its movement. The scraped foam accumulates on both sides of the regulating tank and can be salvaged manually. By scraping off the foam on the waste liquid, the waste liquid is further fully exposed to the air, thereby further improving the aeration effect of the waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the regulating tank of the utility model;

[0023] Figure 2 This is a front cross-sectional view of the guide plate of the present invention;

[0024] Figure 3 This is a right sectional view of the steering gear of the present invention;

[0025] Figure 4 This is a top cross-sectional view of the floating plate of the present invention;

[0026] Figure 5 This is a structural schematic diagram of the waste liquid treatment device of the present utility model.

[0027] [Reference Signs]

[0028] 1. Equalization tank 1; 2. Sequencing batch reaction tank; 3. Plate and frame filter press; 4. Equalization tank 2; 5. Stirring mechanism; 51. Guide cover; 52. Guide plate; 53. Servo; 54. Protective shell; 55. Drive element; 56. Bracket; 57. Connecting rod; 58. Gathering cover; 59. Guide strip; 6. Floating plate; 7. Floating strip.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0030] The following describes in detail a device for recovering copper from electrolytic copper wastewater provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0031] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0032] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0033] like Figure 1-Figure 5As shown, the embodiment of the present invention provides a processing device for recovering copper from electrolytic copper waste liquid, comprising a regulating tank 1, a displacement batch reaction tank 2, a plate-frame filter press 3, and a regulating tank 2 4. The copper-containing waste liquid enters the regulating tank 1 for aeration treatment and then enters the displacement batch reaction tank 2 through a pipeline to react with iron powder. The copper-containing precipitate produced after the reaction is pumped into the plate-frame filter press 3 through a sludge pump for solid-liquid separation. The filtrate is sent to the regulating tank 2 4 of the sewage treatment system through a pipeline for treatment. The copper-containing waste liquid enters the regulating tank 1, and the aerator in the regulating tank 1 aerates the copper-containing waste liquid. Gas treatment, after treatment, is transported to the displacement batch reaction tank 2 through a water pump, iron powder is added to the displacement batch reaction tank 2 to react with the waste liquid and stirred for a period of time, so that the iron powder and the waste liquid fully react to generate a precipitate containing copper, which is then pumped to the plate and frame filter press 3 through a sludge pump for dehydration to achieve solid-liquid separation, and the dehydrated copper-containing sludge is collected in a ton bag and waits for external recycling. The filtrate generated by the plate and frame filter press 3 flows through a diversion pipe to the regulating tank 2 4 of the sewage treatment system to be mixed with other waste liquids with a low amount of electrolytic copper, and then is treated by the sewage treatment system. It also includes:

[0034] The stirring mechanism 5 includes a driving member 55 provided on the regulating tank 1 and a deflector 51 provided in the regulating tank. The driving member 55 is composed of a servo motor, a lead screw and a shaft seat. The number of the servo motor and the lead screw is two. The lead screw is installed on the regulating tank 1 through the shaft seat. The servo motor is fixed to the side of the regulating tank 1 through the support. The driving member 55 is threadedly connected to a bracket 56. The bracket 56 is threadedly connected to the lead screw. The driving member 55 is used to drive the bottom of the bracket 56 to be fixed with a connecting rod 57. The deflector 5 1 is fixed at the bottom of the connecting rod 57, and the guide plate 52 is connected to the guide cover 51 for rotation. The two servo motors of the driving member 55 respectively drive the two screws to rotate forward and reverse, so that the bracket 56 reciprocates left and right on the regulating tank 1. The bracket 56 drives the guide cover 51 to move back and forth left and right in the regulating tank 1 through the connecting rod 57. During the movement of the guide cover 51, the water flows through the guide plate 52, and the bubbles are better dispersed in the waste liquid through the guide plate 52, which increases the contact area between the oxygen in the bubbles and the waste liquid, thereby improving the waste liquid. The oxidation reaction efficiency is improved. At the same time, the water flow will surge upward after passing through the guide plate 52, so that the waste liquid is fully in contact with the air, further improving the oxidation reaction efficiency in the waste liquid, thereby improving the aeration effect of the waste liquid. The driving member 55 is used to drive the guide cover 51 to reciprocate along the long direction of the regulating tank 1. The side of the guide cover 51 is respectively fixed with a protective shell 54 and a steering gear 53. The steering gear 53 is located in the protective shell 54. The output end of the steering gear 53 is fixedly connected to the side of the guide plate 52. The steering gear 53 is used to adjust the angle of the guide plate 52 When the deflector 51 moves to the left, the servo 53 drives the left side of the deflector 52 to rotate downward. When the deflector 51 moves to the right, the servo 53 drives the right side of the deflector 52 to rotate downward. The protective shell 54 is provided with a wire hole for passing the power cord of the servo 53. A sealing ring is installed in the wire hole for sealing the wire hole and the power cord, thereby preventing waste liquid from entering the protective shell 54 through the wire hole. The above components together constitute a processing device for recovering copper from electrolytic copper waste liquid, thereby realizing the recovery and treatment of copper in copper-containing waste liquid.

[0035] like Figure 2 As shown, in this embodiment, a gathering cover 58 is fixed on both sides of the guide cover 51. The opening of the gathering cover 58 on the side away from the guide cover 51 is larger than the opening on the side close to the guide cover 51. The gathering cover 58 is used to gather the water flow so that more waste liquid can enter the guide cover 51.

[0036] like Figure 4 As shown, in this embodiment, there are two connecting rods 57 , and the connecting rods 57 are diamond-shaped. The diamond shape effectively prevents the connecting rods 57 from deforming, thereby improving the anti-deformation ability of the connecting rods 57 .

[0037] like Figure 2 As shown, in this embodiment, an arc-shaped guide surface is provided on the guide plate 52, and the water flow can surge upward more smoothly after being guided by the guide surface.

[0038] like Figure 2 As shown, in this embodiment, guide bars 59 are fixed on both sides of the guide plate 52. The two guide bars 59 are respectively fixed on the left and right sides of the guide plate 52 to reduce the resistance when the guide plate 52 moves.

[0039] like Figure 2 As shown, in this embodiment, the guide strip 59 is a right triangle, and the hypotenuse of the guide strip 59 is used for guiding. The acute angle of the guide strip 59 faces the moving direction of the guide plate 52, which can effectively break the resistance of the water. The water flow can enter the deflector cover 51 more smoothly along the hypotenuse of the guide strip 59.

[0040] like Figure 4 As shown, in this embodiment, a floating plate 6 is slidably sleeved on the connecting rod 57. The floating plate 6 floats on the liquid surface of the waste liquid. During the movement of the floating plate 6, the floating plate 6 can scrape off the foam generated by aeration on the waste liquid. The scraped foam accumulates on the left and right sides of the inner wall of the regulating tank 1 and can be manually salvaged. The scraper scrapes off the foam on the waste liquid, so that the waste liquid is fully in contact with the air, thereby improving the aeration effect of the waste liquid.

[0041] like Figure 4 As shown, in this embodiment, both sides of the floating plate 6 are curved surfaces, which are arranged on the left and right sides of the floating plate 6, and can effectively gather the floating foam and effectively prevent the floating foam from floating out from the front and back sides of the floating plate 6.

[0042] like Figure 2 As shown, in this embodiment, floating bars 7 are fixed on both sides of the floating plate 6 , and the floating bars 7 are used to increase the buoyancy of the floating plate 6 .

[0043] like Figure 2 As shown, in this embodiment, the top of the floating rod 7 is an inclined surface, and the inclined surface reduces the resistance of the floating rod 7 during the movement.

[0044] Working principle: Copper-containing waste liquid enters the regulating tank 1, and the aerator in the regulating tank 1 aerates the waste liquid. During the aeration process, the driving part 55 is started, and the servo motor of the driving part 55 drives the screw to rotate forward and reverse. During the forward and reverse rotation of the screw, the bracket 56 is driven to move back and forth to the left or right. The bracket 56 drives the deflector 51 to move back and forth left and right in the regulating tank 1 through the connecting rod 57. When the deflector 51 moves to the left, the steering gear 53 drives the deflector 52 to rotate, so that the left side of the deflector 52 rotates downward and the right side of the deflector 52 rotates upward. When the deflector 51 moves to the left, the water flows into the deflector 51 from the left side of the deflector 51 and flows from the deflector 52 under the action of the deflector 52. 2. When the deflector 51 moves to the right, the steering gear 53 drives the deflector 52 to rotate in the opposite direction, so that the right side of the deflector 52 rotates downward and the left side of the deflector 52 rotates upward. When the deflector 51 moves to the right, the water flows into the deflector 51 from the right side and surges upward from the left side of the deflector 52 under the action of the deflector 52. The air bubbles are better dispersed in the waste liquid through the deflector 52, increasing the contact area between the oxygen in the bubbles and the waste liquid, thereby improving the oxidation reaction efficiency in the waste liquid. At the same time, after passing through the deflector 52, the water flows upward, so that the waste liquid is fully in contact with the air, further improving the oxidation reaction efficiency in the waste liquid, thereby improving the aeration effect of the waste liquid.

[0045] The connecting rod 57 is covered with a floating plate 6, which floats on the surface of the waste liquid. During the movement of the floating plate 6, the floating plate 6 can scrape off the foam generated by aeration on the waste liquid. The scraped foam accumulates on the left and right sides of the inner wall of the regulating tank 1 and can be manually salvaged. The scraper scrapes off the foam on the waste liquid, further allowing the waste liquid to fully contact with air, thereby further improving the aeration effect of the waste liquid.

[0046] The aerated waste liquid is transported to the displacement batch reaction tank 2 through a water pump, and iron powder is added to the displacement batch reaction tank 2 to react with the waste liquid and stirred for a period of time, so that the iron powder and the waste liquid fully react to form a precipitate containing copper, and then pumped to the plate and frame filter press 3 through a sludge pump for dehydration to achieve solid-liquid separation. The dehydrated copper-containing sludge is collected in ton bags and waits for external recycling. The filtrate of the plate and frame filter press 3 flows through a diversion pipe to the regulating tank 2 4 of the sewage treatment system to mix with other waste liquids with lower electrolytic copper content, and then is treated by the sewage treatment system.

[0047] The present invention encompasses any substitutions, modifications, equivalent methods, and solutions that are not within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention above, but those skilled in the art can fully understand the present invention without these detailed descriptions.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A treatment device for recovering copper from electrolytic copper waste liquid, comprising a regulating tank 1 (1), a displacement batch reaction tank (2), a plate-frame filter press (3) and a regulating tank 2 (4), wherein the copper-containing waste liquid enters the regulating tank 1 (1) for aeration treatment and then enters the displacement batch reaction tank (2) through a pipeline to react with iron powder, and the sludge containing copper generated after the reaction is pumped into the plate-frame filter press (3) through a sludge pump for solid-liquid separation, and the filtrate is sent to the regulating tank 2 (4) of the sewage treatment system through a pipeline for treatment, characterized in that: Also includes: A stirring mechanism (5) includes a driving member (55) arranged on a regulating tank (1) and a guide cover (51) arranged in the regulating tank, the driving member (55) is used to drive the guide cover (51) to reciprocate along the long direction of the regulating tank (1), a bracket (56) is threadedly connected to the driving member (55), a connecting rod (57) is fixed to the bottom of the driving member (55) for driving the bracket (56), the guide cover (51) is fixed to the bottom of the connecting rod (57), a guide plate (52) is rotatably connected in the guide cover (51), a protective shell (54) and a steering gear (53) are respectively fixed to the side of the guide cover (51), the steering gear (53) is located in the protective shell (54), an output end of the steering gear (53) is fixedly connected to the side of the guide plate (52), and the steering gear (53) is used to adjust the angle of the guide plate (52).

2. The device for recovering copper from electrolytic copper waste liquid according to claim 1, characterized in that: Gathering covers (58) are fixed on both sides of the deflector cover (51), and the opening of the gathering cover (58) on the side away from the deflector cover (51) is larger than the opening on the side close to the deflector cover (51).

3. The device for recovering copper from electrolytic copper waste liquid according to claim 1, characterized in that: There are two connecting rods (57), and the connecting rods (57) are diamond-shaped.

4. The device for recovering copper from electrolytic copper waste liquid according to claim 1, characterized in that: The guide plate (52) is provided with an arc-shaped guide surface.

5. The device for recovering copper from electrolytic copper waste liquid according to claim 1, characterized in that: Guide strips (59) are fixed on both sides of the guide plate (52).

6. The device for recovering copper from electrolytic copper waste liquid according to claim 5, characterized in that: The guide strip (59) is in the shape of a right triangle, and the hypotenuse of the guide strip (59) is used for guiding flow.

7. The device for recovering copper from electrolytic copper waste liquid according to claim 1, characterized in that: A floating plate (6) is slidably sleeved on the connecting rod (57).

8. The device for recovering copper from electrolytic copper waste liquid according to claim 7, characterized in that: Both sides of the floating plate (6) are curved surfaces.

9. The device for recovering copper from electrolytic copper waste liquid according to claim 7, characterized in that: Floating strips (7) are fixed on both sides of the floating plate (6).

10. The device for recovering copper from electrolytic copper waste liquid according to claim 9, characterized in that: The top of the floating strip (7) is a slope.

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