A reaction device for treating copper-containing nitric acid waste liquid

Abstract

The utility model discloses a copper containing nitric acid waste liquid processing reaction unit, including electrolytic cell, install the top cover of electrolytic cell top, set up the base plate of top cover top surface, install a plurality of electrolytic plate at the base plate bottom, and electrolytic plate penetrates the inside of electrolytic cell to top cover, a plurality of fixed bolts are arranged at the top of base plate, the both sides of electrolytic cell are provided with liquid inlet and liquid outlet respectively, still include setting up three fairlead in electrolytic cell inboard, and cleaning structure and lifting structure, the top surface of top cover is provided with a plurality of strip plate grooves corresponding with electrolytic plate, the utility model discloses through the improvement optimization of copper extraction device among the prior art, sets up the fairlead in electrolytic cell, forces waste liquid to flow, prolongs the residence time of waste liquid, improves electrolytic efficiency, designs lifting structure and cleaning structure, can clean copper powder deposition on the surface of electrolytic plate in time, improves the current efficiency, thereby promotes the processing efficiency of copper containing nitric acid waste liquid.

Description

Technical Field

[0001] This utility model belongs to the field of copper-containing nitric acid waste liquid treatment technology, specifically relating to a reaction device for treating copper-containing nitric acid waste liquid. Background Technology

[0002] In industrial fields such as electroplating, circuit board manufacturing, and metal surface treatment, copper-containing nitric acid waste liquid is a typical highly polluting hazardous waste. The concentration of copper ions in such waste liquid can usually reach tens of grams per liter. It also contains a large amount of free nitric acid and heavy metal impurities. Direct discharge will lead to eutrophication of water bodies, soil acidification, and ecological toxicity risks. Therefore, it is necessary to treat the reaction by electrolytic copper extraction device to perform electrolytic copper extraction. For example, the existing patent with publication number CN207391170U discloses "a treatment device for copper-containing nitric acid waste liquid, which includes a nitric acid stripping solution preparation device, a stripping device, a diffusion dialysis device, an electrolytic copper extraction device, a copper-containing nitric acid waste liquid storage tank, a copper nitrate solution storage tank, and a nitric acid recovery storage tank". It can be seen that the "electrolytic copper extraction device" described therein is a reaction device for electrolytic copper extraction treatment of copper-containing nitric acid waste liquid.

[0003] However, existing electrolytic copper extraction devices for treating copper-containing nitric acid waste liquid often use static or natural convection methods in their electrolytic cells. This results in insufficient residence time of the waste liquid within the electrolytic cell, requiring multiple cycles to meet standards, leading to low electrolytic efficiency. Furthermore, the lack of an effective surface cleaning mechanism for the electrolytic plates causes copper powder to gradually deposit on the cathode plate during electrolysis, forming a dense layer that reduces current efficiency. Frequent shutdowns for manual cleaning are necessary, severely impacting production continuity. Therefore, this invention proposes a reaction device for treating copper-containing nitric acid waste liquid. Utility Model Content

[0004] The purpose of this invention is to provide a reaction device for treating copper-containing nitric acid waste liquid, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reaction device for treating copper-containing nitric acid waste liquid, comprising an electrolytic cell, a top cover installed on the top of the electrolytic cell, a base plate disposed on the top surface of the top cover, and multiple electrolytic plates installed on the bottom of the base plate, wherein the electrolytic plates penetrate the top cover into the interior of the electrolytic cell, multiple fixing bolts are provided on the top of the base plate, and an inlet and an outlet are respectively provided on both sides of the electrolytic cell, and further comprising...

[0006] Three guide plates are installed inside the electrolytic cell, one of which is fixed to the front inner wall of the electrolytic cell, and the other two are fixed to the rear inner wall of the electrolytic cell.

[0007] In addition to cleaning the structure and lifting the structure.

[0008] Preferably, the top surface of the top cover has a plurality of strip-shaped grooves corresponding to the electrolysis plate, and the bottom end of the strip-shaped grooves has a strip-shaped hole through which the electrolysis plate passes.

[0009] Preferably, the cleaning structure is disposed on the inner side of the strip plate groove, and the cleaning structure includes silicone base strips installed on the inner walls of both sides of the strip plate groove, and the side of the silicone base strip is provided with an integral silicone scraper that contacts the electrolysis plate.

[0010] Preferably, the cleaning structure further includes a disassembly and assembly structure, which is disposed between the silicone base strip and the inner wall of the strip-shaped plate groove.

[0011] Preferably, the disassembly and assembly structure includes a T-shaped slot formed in the inner wall of the strip plate groove, and the other side surface of the silicone base strip is provided with an integral T-shaped block that is inserted into the T-shaped slot.

[0012] Preferably, the lifting structure includes a U-shaped frame fixed to the top of the top cover, a servo motor mounted on the top of the U-shaped frame, and a lead screw rotatably mounted between the U-shaped frame and the top cover. The output end of the servo motor is connected to the lead screw. A nut seat corresponding to the lead screw is fixed at the top center of the base plate. The bottom end of the lead screw passes through the nut seat and the base plate and is rotatably connected to the top cover.

[0013] Preferably, a bearing seat is installed on the top surface of the top cover, and the bottom end of the lead screw is rotatably connected to the top cover through the bearing seat.

[0014] Preferably, the bottom surface of the substrate has a rectangular notch corresponding to the bearing seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves and optimizes the electrolytic copper extraction device in the prior art by setting a guide plate in the electrolytic cell to force the waste liquid to flow, prolong the residence time of the waste liquid, and improve the electrolysis efficiency. The design of the lifting structure and cleaning structure can clean the copper powder deposits on the surface of the electrolytic plate in time, improve the current efficiency, and thus improve the treatment efficiency of copper-containing nitric acid waste liquid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a top sectional view of the present invention;

[0019] Figure 4 This utility model Figure 2 A magnified view of a portion of region A in the middle;

[0020] In the diagram: 1. Electrolytic cell; 2. Top cover; 21. Strip plate groove; 22. Strip plate hole; 3. Liquid inlet; 4. Liquid outlet; 5. Base plate; 51. Fixing bolt; 52. Rectangular notch; 61. U-shaped frame; 62. Servo motor; 63. Lead screw; 64. Nut seat; 65. Bearing seat; 7. Electrolytic plate; 8. Guide plate; 91. T-shaped slot; 92. T-shaped block; 93. Silicone base strip; 94. Silicone scraper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figures 1 to 4 This is an embodiment of the present invention, which provides a technical solution: a reaction device for treating copper-containing nitric acid waste liquid, including an electrolytic cell 1, a top cover 2 installed on the top of the electrolytic cell 1, a base plate 5 disposed on the top surface of the top cover 2, and multiple electrolytic plates 7 installed on the bottom of the base plate 5, wherein the electrolytic plates 7 penetrate through the top cover 2 to the interior of the electrolytic cell 1, and multiple fixing bolts 51 are provided on the top of the base plate 5 for stably installing the electrolytic plates 7 on the bottom surface of the base plate 5. An inlet 3 and an outlet 4 are respectively provided on both sides of the electrolytic cell 1. The copper-containing nitric acid waste liquid enters the interior of the electrolytic cell 1 from the inlet 3 and is discharged from the outlet 4. The above structure is all prior art. For the specific structural principle, please refer to the prior art patent with publication number CN220224370U, which will not be elaborated here. The reaction process of the electrolytic cell 1 for treating copper-containing nitric acid waste liquid is also prior art. For the specific principle, please refer to the prior art patent with publication number CN207391170U, which will not be elaborated here.

[0023] Also includes

[0024] Three guide plates 8 are installed inside the electrolytic cell 1. One guide plate 8 is fixed to the front inner wall of the electrolytic cell 1, and the other two guide plates 8 are fixed to the rear inner wall of the electrolytic cell 1. They can force the copper-containing nitric acid waste liquid entering from the liquid inlet 3 to flow through, prolong the residence time of the copper-containing nitric acid waste liquid in the electrolytic cell 1, improve the electrolytic treatment efficiency, clean the copper powder deposits on the surface of the electrolytic plate 7 in time, improve the current efficiency, and thus improve the treatment efficiency of the copper-containing nitric acid waste liquid.

[0025] The top surface of the top cover 2 is provided with multiple strip-shaped grooves 21 corresponding to the electrolytic plate 7, and the bottom end of the strip-shaped grooves 21 is provided with strip-shaped holes 22 through which the electrolytic plate 7 passes.

[0026] In addition to cleaning the structure and lifting the structure.

[0027] In this embodiment, preferably, the lifting structure includes a U-shaped frame 61 welded and fixed to the top of the top cover 2, a servo motor 62 installed on the top of the U-shaped frame 61, and a lead screw 63 rotatably installed between the U-shaped frame 61 and the top cover 2. The output end of the servo motor 62 is connected to the lead screw 63. A nut seat 64 corresponding to the lead screw 63 is welded and fixed at the top center of the substrate 5. The bottom end of the lead screw 63 passes through the nut seat 64 and the substrate 5 and is rotatably connected to the top cover 2. Subsequently, the operator can start the servo motor 62 to make the lead screw 63 start to rotate, and the lead screw 63 drives the nut seat 64 and the substrate 5 to rise and fall under the action of the thread, so that the substrate 5 and the electrolytic plate 7 can complete the lifting and falling. During the lifting and falling process of the electrolytic plate 7, it will be effectively cleaned by the silicone scraper 94. When it is necessary to disassemble and replace the electrolytic plate 7 in the future, it is only necessary to continuously lift the substrate 5 and the electrolytic plate 7 through the lifting structure until the electrolytic plate 7 is moved to the top of the top cover 2 and completely lifted out, so that the electrolytic plate 7 can be disassembled, replaced and maintained.

[0028] In this embodiment, preferably, the cleaning structure is set inside the strip plate groove 21. The cleaning structure includes silicone base strips 93 installed on the inner walls of both sides of the strip plate groove 21. The side of the silicone base strip 93 is provided with an integral silicone scraper 94 that contacts the electrolytic plate 7. When the substrate 5 and the electrolytic plate 7 are subsequently lifted by the lifting structure, the silicone scraper 94 will elastically scrape and clean the surface of the electrolytic plate 7.

[0029] In this embodiment, preferably, the cleaning structure further includes a disassembly and assembly structure. This disassembly and assembly structure is disposed between the silicone base strip 93 and the inner wall of the strip-shaped groove 21. The disassembly and assembly structure includes a T-shaped slot 91 formed in the inner wall of the strip-shaped groove 21. The other side surface of the silicone base strip 93 is provided with an integral T-shaped locking block 92 that engages with the T-shaped slot 91, allowing the silicone base strip 93 to be stably installed on the inner wall of the strip-shaped groove 21. The T-shaped locking block 92, the silicone base strip 93, and the silicone scraper 94 are all made of silicone material. Made of a material that can undergo elastic deformation, if the silicone base strip 93 and silicone scraper 94 need to be removed and replaced later, simply lift the substrate 5 and electrolytic plate 7 to the top of the top cover 2 using the lifting structure, so that the strip groove 21 is exposed. Then, pull the silicone base strip 93 to the side, so that the T-shaped card block 92 is squeezed and undergoes elastic deformation, and is finally pulled out from the T-shaped card slot 91. The silicone base strip 93 and silicone scraper 94 can be easily removed and replaced, ensuring convenient maintenance in the future.

[0030] In this embodiment, preferably, a bearing seat 65 is installed on the top surface of the top cover 2, and the bottom end of the lead screw 63 is rotatably connected to the top cover 2 through the bearing seat 65.

[0031] In this embodiment, preferably, the bottom surface of the substrate 5 is provided with a rectangular notch 52 corresponding to the bearing seat 65, so that the bearing seat 65 does not affect the normal lifting and lowering of the substrate 5.

[0032] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction apparatus for treating copper-containing nitric acid waste liquid, comprising an electrolytic cell (1), a top cover (2) installed on the top of the electrolytic cell (1), a base plate (5) disposed on the top surface of the top cover (2), and a plurality of electrolytic plates (7) installed on the bottom of the base plate (5), wherein the electrolytic plates (7) penetrate through the top cover (2) into the interior of the electrolytic cell (1), and a plurality of fixing bolts (51) are provided on the top of the base plate (5), and an inlet (3) and an outlet (4) are respectively provided on both sides of the electrolytic cell (1), characterized in that: Also includes Three guide plates (8) are set inside the electrolytic cell (1); In addition to cleaning the structure and lifting the structure.

2. The reaction apparatus for treating copper-containing nitric acid waste liquid according to claim 1, characterized in that: The top surface of the top cover (2) is provided with a plurality of strip-shaped grooves (21) corresponding to the electrolytic plate (7), and the bottom end of the strip-shaped grooves (21) is provided with strip-shaped holes (22) through which the electrolytic plate (7) passes.

3. The copper-containing nitric acid wastewater treatment reaction device according to claim 2, characterized in that: The cleaning structure is located inside the strip plate groove (21). The cleaning structure includes silicone base strips (93) installed on the inner walls of both sides of the strip plate groove (21). The silicone base strips (93) are provided with an integral silicone scraper (94) that contacts the electrolytic plate (7) on their sides.

4. The copper-containing nitric acid wastewater treatment reaction device according to claim 3, characterized in that: The cleaning structure also includes a disassembly and assembly structure, which is disposed between the silicone base strip (93) and the inner wall of the strip plate groove (21).

5. The copper-containing nitric acid wastewater treatment reaction device according to claim 4, characterized in that: The disassembly and assembly structure includes a T-shaped slot (91) formed on the inner wall of the strip plate groove (21), and the other side surface of the silicone base strip (93) is provided with an integral T-shaped block (92) that is inserted into the T-shaped slot (91).

6. The copper-containing nitric acid wastewater treatment reaction device according to claim 1, characterized in that: The lifting structure includes a U-shaped frame (61) fixed to the top of the top cover (2), a servo motor (62) installed on the top of the U-shaped frame (61), and a lead screw (63) rotatably installed between the U-shaped frame (61) and the top cover (2). The output end of the servo motor (62) is connected to the lead screw (63). A nut seat (64) corresponding to the lead screw (63) is fixed at the top center of the base plate (5). The bottom end of the lead screw (63) passes through the nut seat (64) and the base plate (5) and is rotatably connected to the top cover (2).

7. The copper-containing nitric acid wastewater treatment reaction device according to claim 6, characterized in that: The top surface of the top cover (2) is equipped with a bearing seat (65), and the bottom end of the lead screw (63) is rotatably connected to the top cover (2) through the bearing seat (65).

8. The copper-containing nitric acid wastewater treatment reaction device according to claim 7, characterized in that: The bottom surface of the substrate (5) has a rectangular notch (52) corresponding to the bearing seat (65).

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