Long cycle lead anode plate

Abstract

The utility model discloses a long -term lead anode plate relates to anode plate technical field, including anode plate main part, anode plate main part includes anode plate board surface, electrically conductive beam, arc conductive ear, horizontal conductive ear, is equipped with the flow guide hole on anode plate board surface, is favorable to the equidistance flow of electrolyte, makes electrolyte more can even flow and is attached around cathode plate, reduces the concentration difference polarization, the thickness of electrically conductive beam is from the one end of anode plate board surface connection to the one end of arc conductive ear connection increasing, arc conductive ear with electrically conductive beam, horizontal conductive ear all through transition arc ear smooth connection between, improve the flowability of electrolyte, improve flow field evenness, be favorable to cathode copper crystallization quality promotion, arc conductive ear with horizontal conductive ear, electrically conductive beam with arc conductive ear's connecting end thickness is identical, the thickness of arc conductive ear is greater than anode plate board surface thickness, the thick design of anode plate main part is thin on top, increases the bearing property, improves electrically conductive contact area and increases conductivity, prolongs anode plate main part service life.

Description

Technical Field

[0001] This utility model relates to the field of anode plate technology, specifically to a long-cycle lead anode plate. Background Technology

[0002] In copper electrolytic refining, the anode efficiency is higher than the cathode efficiency. As electrolysis proceeds, the copper ion concentration in the electrolyte continuously increases. To ensure that the copper ion concentration in the electrolyte system is within the process control requirements, copper removal treatment of the electrolyte is necessary. Electrolytic copper removal is an important means of regulating the copper ion balance in the electrolyte system during copper electrolysis. Electrolytic copper removal uses an insoluble anode as the anode, a cathode plate as the cathode, and the solution to be purified in the copper electrolysis system as the electrolyte. Under the action of direct current, the anode does not dissolve, and the copper ions in the solution migrate to the cathode under the action of current for electrochemical deposition, reducing the copper ion concentration to about 30-35 g / L, thereby achieving the purpose of regulating the copper ion balance of the electrolysis system, and simultaneously producing cathode copper for external sale.

[0003] Currently, the insoluble anodes used are usually lead anodes. As the copper removal process has changed from the traditional small anode plate electrowinning to the current mainstream large electrode plate copper removal process, the lead anodes used for electrowinning copper removal have the following problems: (1) The conductive beams of the anode plate with uniform thickness on all sides do not match the weight of the large electrode plate, and the lead anode plate is very easy to deform, affecting the quality of the cathode copper; (2) The contact between the lead anode ear and the conductive copper busbar is uneven, resulting in poor conductivity and uneven distribution of electric field lines; (3) The deformation and short circuit of the lead anode cause a high burn-off rate, resulting in a short service life of the lead anode and high production costs. Utility Model Content

[0004] The main purpose of this invention is to provide a long-cycle lead anode plate to solve the problem that lead anode plates are prone to deformation in the existing large electrode copper removal process.

[0005] To achieve the above objectives, this utility model provides a long-cycle lead anode plate, comprising an anode plate body, the anode plate body including an anode plate surface and a conductive beam integrally formed with the anode plate surface; the width between the two end faces of the anode plate surface is unequal, so that the external electrolyte flowing through the anode plate surface flows away from the side wall of the anode plate, and the anode plate surface is provided with guide holes; the conductive beam is provided with arc-shaped conductive ears on both sides of the end away from the anode plate surface, and the thickness of the conductive beam increases from the end connected to the anode plate surface to the end connected to the arc-shaped conductive ears; the end of the arc-shaped conductive ears is provided with horizontal conductive ears, and the arc-shaped conductive ears are smoothly connected to the conductive beam and the horizontal conductive ears through transition arc-shaped ears, the thickness of the connection ends of the arc-shaped conductive ears and the horizontal conductive ears, and the thickness of the arc-shaped conductive ears is the same as that of the conductive beam and the arc-shaped conductive ears, and the thickness of the arc-shaped conductive ears is greater than the thickness of the anode plate surface.

[0006] As a further improvement of this utility model, the width difference between the two end faces of the anode plate is in the range of 5mm-15mm, preferably 10mm, so that the side wall of the anode plate forms a slope.

[0007] As a further improvement of this utility model, the guide holes are arranged at equal intervals and with equal diameters on the surface of the anode plate.

[0008] As a further improvement of this utility model, the horizontal conductive ear, the arc-shaped conductive ear, the conductive beam, and the anode plate are integrally formed together.

[0009] As a further improvement of this utility model, the thickness of the arc-shaped conductive ear is twice the thickness of the anode plate surface.

[0010] As a further improvement of this utility model, the conductive beam adopts an inverted trapezoidal shape with a thicker upper part and a thinner lower part; the included angle α of the lower base of the conductive beam is 85° and the included angle β of the upper base is 95°.

[0011] As a further improvement of this utility model, the radius of the transition arc between the horizontal conductive ear and the arc-shaped conductive ear is 160mm, the radius of the transition arc between the arc-shaped conductive ear and the conductive beam is 50mm, the radius of the transition arc connecting the arc-shaped conductive ear to the side with the larger width of the anode plate is 80mm, and the radius of the transition arc connecting the arc-shaped conductive ear to the side with the smaller width of the anode plate is 85mm.

[0012] The beneficial effects of this utility model are reflected in: The anode plate features a thicker top and thinner bottom design, increasing load-bearing capacity and resolving the mismatch between the load-bearing capacity of the anode plate's ears and surface. This reduces costs, increases the conductive contact area, enhances conductivity, and extends the lifespan of the anode plate. The anode plate surface is equipped with flow guide holes, facilitating equidistant flow of the electrolyte and allowing it to adhere more evenly around the cathode plate, reducing concentration polarization. The arc-shaped conductive ears are smoothly connected to the conductive beams and horizontal conductive ears via transition arc-shaped ears, improving electrolyte fluidity and flow field uniformity, which is beneficial for improving the quality of cathode copper crystallization. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a long-cycle lead anode plate according to this utility model; Figure 2 This is a left view of a long-cycle lead anode plate according to the present invention; Explanation of reference numerals in the attached figures: 1. Anode plate surface; 2. Conductive beam; 3. Guide hole; 4. Arc-shaped conductive ear; 5. Horizontal conductive ear; 6. Inclined surface; 7. Small end face; 8. Large end face; 9. First transition arc ear; 10. Second transition arc ear; 11. Third transition arc ear; 12. Fourth transition arc ear. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] In one embodiment, see Figure 1 , 2 This utility model discloses a long-cycle lead anode plate, comprising an anode plate body, which includes an anode plate surface 1 and a conductive beam 2 integrally formed with the anode plate surface 1. The width between the two end faces of the anode plate surface 1 is unequal, so that the external electrolyte flowing through the anode plate surface 1 flows away from the side wall of the anode plate. The anode plate surface 1 is provided with a guide hole 3. The conductive beam 2 is provided with arc-shaped conductive ears 4 on both sides of the end away from the anode plate surface 1. The thickness of the conductive beam 2 increases from the end connected to the anode plate surface 1 to the end connected to the arc-shaped conductive ears 4. The end of the arc-shaped conductive ears 4 is provided with a horizontal conductive ear 5. The arc-shaped conductive ears 4 are smoothly connected to the conductive beam 2 and the horizontal conductive ears 5 through transition arc-shaped ears. The thickness of the connection end between the arc-shaped conductive ears 4 and the horizontal conductive ears 5, and between the conductive beam 2 and the arc-shaped conductive ears 4 is the same. The thickness of the arc-shaped conductive ears 4 is greater than the thickness of the anode plate surface 1.

[0016] Further, see Figure 1 The width difference between the two end faces of the anode plate 1 is in the range of 5mm-15mm, preferably 10mm, so that the side wall of the anode plate 1 forms a slope 6.

[0017] Preferably, the anode plate surface 1 is a rectangular structure, with inclined surfaces 6 located on both side walls and the bottom of the anode plate surface 1. The top of the anode plate surface 1 is horizontal and connected to the conductive beam 2. The smaller end face 7 of the anode plate surface 1 is positioned facing the liquid inlet direction of the copper stripping tank, while the larger end face 8 of the anode plate surface 1 is positioned away from the liquid inlet direction of the copper stripping tank. When the electrolyte flows, some electrolyte passes through the guide hole 3, and some electrolyte flows along both sides and the bottom of the anode plate surface 1. Under the guidance of the inclined surfaces 6, the electrolyte gradually flows away from the anode plate surface 1, thus making the electrolyte flow in a funnel shape.

[0018] Further, see Figure 1 The guide holes 3 are spaced equidistantly and have the same diameter on the surface of the anode plate 1.

[0019] Preferably, the guide hole 3 is a circular hole with a diameter ranging from 20mm to 30mm, preferably 25mm. This facilitates the equidistant flow of the electrolyte, allowing the electrolyte to flow more evenly around the cathode plate, reducing concentration polarization, and improving the quality of cathode copper crystallization.

[0020] Further, see Figure 1 The horizontal conductive ear 5, the arc-shaped conductive ear 4, the conductive beam 2, and the anode plate surface 1 are integrally formed.

[0021] Preferably, the horizontal conductive lug 5, the arc-shaped conductive lug 4, the conductive beam 2, and the anode plate surface 1 can be formed by integral casting. Integral casting makes the cooling gradient of the entire anode plate consistent, which is more conducive to the load-bearing performance and conductivity uniformity of the lead anode plate.

[0022] Further, see Figure 1 , 2 The thickness of the arc-shaped conductive ear 4 is twice the thickness of the anode plate surface 1.

[0023] Preferably, the thickness of the arc-shaped conductive ear 4, the horizontal conductive ear 5, the conductive beam 2, and the connection end of the arc-shaped conductive ear 4 are all 30mm, and the thickness of the anode plate surface 1 is 15mm. Thickening the horizontal conductive ear 5, the arc-shaped conductive ear 4, and the conductive beam 2 solves the problem of mismatch between the load-bearing capacity of the large anode plate ear and the plate surface with minimal material and cost. It increases the load-bearing capacity of the ear without increasing the thickness of the plate surface. The increased thickness of the horizontal conductive ear 5 and the arc-shaped conductive ear 4 can increase the contact area with the conductive copper busbar, increase the conductive area, improve the uniformity of electric field distribution, increase conductivity, and improve the quality of cathode copper crystallization.

[0024] Further, see Figure 2 The conductive beam 2 adopts an inverted trapezoidal shape with a thicker upper part and a thinner lower part. The included angle α of the lower base of the conductive beam 2 is 85° and the included angle β of the upper base is 95°.

[0025] Preferably, the cross-section of the conductive beam 2 in the vertical direction is trapezoidal, the bottom width of the conductive beam 2 is 30mm, the top width is 15mm, the bottom of the conductive beam 2 is connected to the arc-shaped conductive lug 4, and the top is connected to the anode plate surface 1. The design of the conductive beam 2 being thicker at the top and thinner at the bottom achieves a uniform transition, which is beneficial to the uniform transition of the load-bearing surface and is more conducive to extending the service life of the lead anode plate.

[0026] Further, see Figure 1 The radius of the first transition arc ear 9 between the horizontal conductive ear 5 and the arc-shaped conductive ear 4 is 160 mm; the radius of the second transition arc ear 10 between the arc-shaped conductive ear 4 and the conductive beam 2 is 50 mm; the radius of the third transition arc ear 11 connecting the arc-shaped conductive ear 4 to the side with the larger width of the anode plate 1 is 80 mm; and the radius of the fourth transition arc ear 12 connecting the arc-shaped conductive ear 4 to the side with the smaller width of the anode plate 1 is 85 mm.

[0027] Preferably, the outer radius of the arc-shaped conductive ear 4 away from the anode plate surface 1 is 160mm, and the inner radii of the arc-shaped conductive ear 4 adjacent to the anode plate surface 1 are 80mm and 85mm respectively. The arc-shaped conductive ear 4 is connected to the anode plate surface 1 in an arc manner, which is more conducive to improving the fluidity of the electrolyte on the upper edge of the anode plate body, avoiding the rapid outflow of floating matter accumulated on the electrolyte surface, reducing the probability of producing ingot particles on the upper edge of the cathode copper, and thus improving the quality of the cathode copper.

[0028] In this embodiment, a lead anode plate with a thicker top and thinner bottom is designed. This increases the thickness of the horizontal conductive lugs 5, the arc-shaped conductive lugs 4, and the conductive beam 2, improving their load-bearing capacity and reducing deformation of the anode plate body. Equal-diameter guide holes 3 are provided on the anode plate surface 1 to increase the fluidity of the electrolyte around the anode plate surface 1, optimize the electrolyte flow field, reduce concentration polarization, improve the quality of electrolytic copper, and optimize the connection curvature between the arc-shaped conductive lugs 4 and the anode plate surface 1. This solves the problems of severe deformation of the anode plate body, poor conductivity, poor crystallization quality, high burn-off rate, and short service life.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A long-cycle lead anode plate, characterized in that, The anode plate includes a main body, which comprises an anode plate surface (1) and a conductive beam (2) integrally formed with the anode plate surface (1). The width between the two end faces of the anode plate surface (1) is unequal, so that the external electrolyte flowing through the anode plate surface (1) flows away from the side wall of the anode plate. The anode plate surface (1) is provided with a guide hole (3). The conductive beam (2) is provided with arc-shaped conductive ears (4) on both sides of the end away from the anode plate surface (1). The thickness of the conductive beam (2) is... The thickness increases from the end connected to the anode plate surface (1) to the end connected to the arc-shaped conductive ear (4); the end of the arc-shaped conductive ear (4) is provided with a horizontal conductive ear (5), and the arc-shaped conductive ear (4) is smoothly connected to the conductive beam (2) and the horizontal conductive ear (5) through transition arc ears. The thickness of the connection end between the arc-shaped conductive ear (4) and the horizontal conductive ear (5), and between the conductive beam (2) and the arc-shaped conductive ear (4) is the same, and the thickness of the arc-shaped conductive ear (4) is greater than the thickness of the anode plate surface (1).

2. The long-cycle lead anode plate according to claim 1, characterized in that: The width difference between the two end faces of the anode plate (1) is 5mm-15mm, so that the side wall of the anode plate (1) forms a slope (6).

3. A long-cycle lead anode plate according to claim 2, characterized in that: The guide holes (3) are spaced at equal intervals and have the same diameter on the surface of the anode plate (1).

4. A long-cycle lead anode plate according to claim 3, characterized in that: The horizontal conductive ear (5), the arc-shaped conductive ear (4), the conductive beam (2), and the anode plate surface (1) are integrally formed.

5. A long-cycle lead anode plate according to claim 4, characterized in that: The thickness of the arc-shaped conductive ear (4) is twice the thickness of the anode plate surface (1).

6. A long-cycle lead anode plate according to claim 5, characterized in that: The conductive beam (2) adopts an inverted trapezoidal shape with a thicker upper part and a thinner lower part; the included angle α of the lower base of the conductive beam (2) is 85° and the included angle β of the upper base is 95°.

7. A long-cycle lead anode plate according to claim 6, characterized in that: The radius of the transition arc between the horizontal conductive ear (5) and the arc-shaped conductive ear (4) is 160 mm, the radius of the transition arc between the arc-shaped conductive ear (4) and the conductive beam (2) is 50 mm, the radius of the transition arc connecting the arc-shaped conductive ear (4) to the side with the larger width of the anode plate (1) is 80 mm, and the radius of the transition arc connecting the arc-shaped conductive ear (4) to the side with the smaller width of the anode plate (1) is 85 mm.

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