Anode thickness inspection jig and method for manufacturing anodes using the same
The anode thickness inspection jig addresses the inefficiencies of complex measurement methods by providing a cost-effective and efficient means to inspect and adjust anode thickness, ensuring proper anode dimensions for electrolytic refining.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SUMITOMO METAL MINING CO LTD
- Filing Date
- 2023-04-20
- Publication Date
- 2026-07-29
AI Technical Summary
Existing anode thickness measurement techniques require complex mechanisms, increasing equipment costs and maintenance labor, making it difficult to inspect anode thickness efficiently and cost-effectively.
An anode thickness inspection jig comprising a pair of clamping sections with a stepped inner section, allowing easy and inexpensive inspection by determining if the anode thickness falls within an acceptable range.
Enables simple and cost-effective inspection of anode thickness, facilitating efficient adjustment of anode molds to ensure proper thickness, thereby reducing the risk of short circuits during electrolytic refining.
Smart Images
Figure 0007896543000001 
Figure 0007896543000002 
Figure 0007896543000003
Abstract
Description
Technical Field
[0001] The present invention relates to an anode thickness inspection jig for inspecting whether the thickness of a specific part of an anode manufactured by copper smelting is within a predetermined range, and a method for manufacturing an anode using this anode thickness inspection jig.
Background Art
[0002] In dry copper smelting, electrolytic copper is manufactured as a product by successively increasing the copper grade of a raw material mainly composed of copper concentrate through a smelting process, a copper-making process, and a refining process. Specifically, first, in the smelting process, for example, in a self-smelting furnace as a smelting furnace, copper concentrate is blown in together with silica for oxidation treatment, so that iron oxide and silica are phase-separated as slag, and a matte with a copper content of about 60% by mass is generated. Next, in the copper-making process, the above matte is transferred from the self-smelting furnace to a converter and further oxidized to produce blister copper with a copper content of about 98% by mass. Finally, in the refining process, the above blister copper is transferred from the converter to a refining furnace to remove oxygen, so as to produce refined blister copper with a copper content of 99% by mass or more, and electrolytic anodes (hereinafter simply referred to as anodes) obtained by casting this are electrolytically refined to produce electrolytic copper with a copper content of 99.99% by mass or more.
[0003] In the casting of the above anodes, refined blister copper withdrawn from the above refining furnace is sequentially cast into a plurality of anode casting molds provided on a circular base called a turntable through one or more troughs, so as to continuously cast a plurality of anodes. Each anode formed into a substantially rectangular plate shape by this casting is required to have a proper thickness for both of a pair of ear portions that respectively protrude left and right from its upper end portion. The reason is that when a plurality of anodes are suspended in an electrolytic cell in the subsequent electrolytic refining, each anode is supported by its pair of ear portions. Therefore, if the thickness of at least one of these pair of ear portions is out of the allowable range, the anode surfaces of adjacent anodes may not be parallel to each other and may be close to each other at the lower end portion, resulting in a risk of short circuit.
[0004] Therefore, various techniques have been proposed to confirm that the pair of ear portions of the cast anode have appropriate thicknesses. For example, Patent Document 1 discloses a measuring device that measures the casting on the upper part of the anode and the size of the raised part at the anode end in the anode casting process of copper smelting. The measuring device of this Patent Document 1 includes a first air cylinder in which a contact plate is fixedly provided parallel to the anode surface on a rod, a differential transformer and a second air cylinder held on a slide plate so as to move in the operating direction of the air cylinder together with the contact plate. The rod of the air cylinder is always protruded to the anode side from the contact plate and biased with a pressure weaker than that of the air cylinder, and the rod of the air cylinder and the core of the differential transformer are connected by a plate-like connecting tool. Thereby, in order to measure the presence or absence of casting, when the rod of the first air cylinder is operated and extended until the contact plate hits the end of the anode, if there is no casting on the anode, the tip of the rod hits the anode surface and then is pushed into the air cylinder body. On the other hand, if there is casting, the depth of the core to be pushed in becomes shorter, and it is described that the magnitude of the casting can be measured according to the degree.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0006] By adopting the technique of Patent Document 1 described above, it is considered possible to measure the casting on the anode and the size of inappropriate raised parts during casting. However, in the thickness measurement of Patent Document 1, since a measuring device with a complicated mechanism is used, the equipment cost increases, and it is considered that a lot of costs and labor are required for its maintenance. The present invention has been made in view of the above circumstances, and an object thereof is to provide a technique capable of simply and at low cost inspecting whether the thickness of a specific part of an anode obtained by casting is within an allowable range. [Means for solving the problem]
[0007] To achieve the above objective, the anode thickness inspection jig of the present invention comprises a metal inspection section consisting of a pair of opposing clamping sections spaced apart by a width equal to the upper limit of the allowable thickness of a specific part of the anode, and a connecting section connecting one end of the pair of clamping sections, and a metal rod-shaped gripping section attached to the connecting section, wherein the inspection section is provided with a stepped section on its inner side, making it one step narrower, and the width of this one step narrower section is equal to the lower limit of the allowable thickness of the specific part of the anode. [Effects of the Invention]
[0008] According to the present invention, it becomes possible to easily and inexpensively inspect whether the thickness of a specific part of the anode is within an acceptable range. [Brief explanation of the drawing]
[0009] [Figure 1] This is a schematic plan view of an electrolytic anode casting apparatus in which anodes to be inspected by the anode thickness inspection jig of the present invention are cast. [Figure 2] This is a perspective view of the anode to be inspected by the anode thickness inspection jig of the present invention. [Figure 3] This is a perspective view of an anode thickness inspection jig according to an embodiment of the present invention. [Figure 4] Figure 3 shows (a) a front view, (b) a side view, (c) a top view, and (d) a bottom view of the anode thickness inspection jig. [Figure 5] This is a perspective view of another embodiment of the anode thickness inspection jig of the present invention. [Figure 6] This is a perspective view of yet another embodiment of the anode thickness inspection jig of the present invention. [Figure 7] Figure 3 is a perspective view showing the inspection of the lugs of an anode suspended on a suspension stand using the anode thickness inspection jig (a), and the inspection of the lugs of an anode suspended in a cooling tank (b). [Figure 8] Figure 3 is a front view showing how the anode's lug portion is judged as pass or fail using the anode thickness inspection jig. [Figure 9] This is a perspective view showing the state in which a liner is inserted under the anode mold based on the inspection results of the anode thickness inspection jig according to an embodiment of the present invention. [Modes for carrying out the invention]
[0010] 1. Anode casting equipment for electrolysis First, a specific example of an electrolytic anode casting facility in which anodes to be inspected by the anode thickness inspection jig of the present invention are cast will be described with reference to Figure 1. The electrolytic anode casting facility shown in Figure 1 is a so-called twin-wheel type anode casting facility consisting of two turntables, and can continuously cast multiple anodes from refined crude copper consisting of molten material.
[0011] To explain in more detail, the electrolytic anode casting equipment shown in Figure 1 consists of two circular turntables 1 that rotate intermittently in the direction of the white arrows, multiple anode molds 2 placed at equal intervals in the circumferential direction on each turntable 1, a trough 3 into which a fixed amount of refined crude copper (also called molten metal) consisting of molten metal processed in a batch manner in a preceding refining furnace (not shown) is sequentially poured into these multiple anode molds 2, and a cooling device that cools and solidifies (consolidates) the molten metal sequentially poured into the anode molds 2 by spraying cooling water on it. The cooling device mainly consists of 4, a peeling machine 5 for peeling the anode A solidified in the cooling device 4 from the anode mold 2, a mold release agent sprayer 6 for spraying a slurry-like mold release agent into the anode mold 2 to improve the peelability during peeling, a cooling tank 7 for cooling the anode A peeled off by the peeling machine 5, a suspension stand 8 for temporarily holding the anode A cooled in the cooling tank 7 in a suspended state for transporting multiple anodes at once by forklift, and a transfer machine 9 for lifting the anode A from the cooling tank 7 and transferring them to the suspension stand. Although Figure 1 shows an example in which 18 anode molds 2 are placed on the turntable 1, the number of anode molds is not limited to this.
[0012] As described above, the anode A cast in the electrolytic anode casting equipment is suspended by the opposing side walls of the electrolytic cell and immersed in the electrolyte. Therefore, as shown in Figure 2, a pair of tabs A protrude to the left and right sides of the paper from the upper corners of a roughly rectangular plate-shaped portion with a length and width of approximately 1000 to 1500 mm. L , A R It has. Anode A is one of these pair of ear parts A L , A R In addition to being supported within the electrolytic cell, these pair of ears A are also supported in the pair of chain conveyors and suspension base 8 in the cooling tank 7, which will be described later. L , A R It is supported by [unclear].
[0013] 2. Jig for inspecting anode thickness The anode thickness inspection jig of the embodiment of the present invention uses the above-mentioned lug portion A as a specific part of anode A manufactured in the above-mentioned electrolytic anode casting equipment. L , A R The object to be inspected is the anode thickness inspection jig 10 of the embodiment of the present invention consists of a metal gate-shaped inspection section 13 which is made up of a pair of substantially rectangular plate-shaped clamping sections 11a and 11b that face each other, and a substantially rectangular plate-shaped connecting section 12 that connects one end of the pair of clamping sections 11a and 11b, and a metal rod-shaped gripping section 14 which is erected in the central part of the connecting section 12 on the side opposite to the side from which the pair of clamping sections 11a and 11b extend.
[0014] The above-mentioned gate-shaped inspection part 13 preferably has a wall thickness of 3 mm or more and 10 mm or less. If the wall thickness is less than 3 mm, the strength may decrease and it may deform during use. Conversely, if the wall thickness exceeds 10 mm, it becomes difficult to insert into the gap between adjacent ear parts of a plurality of anodes arranged in a row in a suspended state in the cooling tank 7. Further, when the inspection part 13 is viewed from the direction in which the pair of sandwiching parts 11a and 11b are separated from each other (i.e., the opposing direction) with the gripping part 14 extending directly above, it is preferable that the lateral width W is 10 mm or more and 30 mm or less, and the height H is 40 mm or more and 100 mm or less. If the lateral width W is less than 10 mm, the strength may decrease and it may deform during use. Conversely, if the lateral width W exceeds 30 mm, when inspecting the thickness of the ear parts A L , A R of the anode to be inspected, since the lateral width W is too long, there is a possibility of inspecting the thickness other than the ear parts A L , A R .
[0015] The pair of sandwiching parts 11a and 11b in the inspection part 13 are separated by a first width D1 that matches the upper limit value of the allowable thickness of the ear parts A L , A R of the anode A to be thickness-inspected. Further, at least one of these pair of sandwiching parts 11a and 11b is provided with a stepped part 15 at the connection location with the connecting part 12, whereby the part deeper than the stepped part 15 is one step narrower. The second width D2 in the one-step narrower part deeper than the stepped part 15 matches the lower limit value of the allowable thickness of the ear parts A L , A R of the anode A to be thickness-inspected.
[0016] The above-mentioned first width D1 is preferably within the range of 35 mm or more and 55 mm or less. On the other hand, the second width D2, which is narrower than the first width D1, is preferably within the range of 20 mm or more and 40 mm or less. Thereby, for the ear parts A L , A RIt can be suitably used for thickness inspection of the anode A. In Figure 3, a step portion 15 perpendicular to the clamping portion 11a is provided, but it is not limited to this, and a step that slopes to gradually narrow may be provided. This allows for inspection of the ear portion A of the anode A. L , A R This makes it easier to guide the object to the back of the stepped section 15.
[0017] Furthermore, the shape of the inspection section 13 described above is not limited to a structure in which a bent section with a substantially L-shaped cross-section is provided at the corner where one of the pair of clamping sections 11a, 11b and the connecting section 12 are joined, as shown in Figure 3, provided that the front portion having a first width D1 and the portion having a second width D2 which is narrower than the first width D1 are located behind the stepped section 15. For example, as in the anode thickness inspection jig 20 of another embodiment shown in Figure 5(a), one of the pair of clamping sections 21a, 21b may be bent at two places to provide a stepped section 25, or as in the anode thickness inspection jig 30 of another embodiment shown in Figure 5(b), both of the pair of clamping sections 31a, 31b may be bent at two places each to provide stepped sections 35a, 35b. Note that in the former case, if the step is provided on only one of the pair of clamping sections 21a, 21b, the ear portion A of the anode A is located behind the step. L , A R It is preferable because it is easy to derive.
[0018] Furthermore, the inspection section may be formed from the same metal rod as the gripping section instead of a metal plate. That is, as in the anode thickness inspection jig 40 of yet another embodiment shown in Figure 6(a), one of the pair of clamping sections 41a, 41b made of metal rods may be bent at two places to provide a stepped section 45, or as in the anode thickness inspection jig 50 of yet another embodiment shown in Figure 6(b), both of the pair of clamping sections 51a, 51b made of metal rods may be bent at two places each to provide stepped sections 55a, 55b. When the inspection section is formed from a metal rod in this way, although the strength will be slightly lower than the anode thickness inspection jigs shown in Figures 3 and 5 which are formed from metal plates, it can be made lighter and manufactured at a lower cost.
[0019] Using the anode thickness inspection jig 10 of the above-described embodiment of the present invention, the lug portion A of anode A L , A R When examining, anode A is located in ear A L , A R It is preferable to perform this when the vehicle is suspended by being supported by the above. For example, as shown in Figure 7(a), in a suspension platform 8 used to hook and lift with the forks F of a forklift, the upper ends of both side walls are provided with ears A L , A R It is preferable to perform the inspection on anode A, which is in a suspended state with each component mounted on it.
[0020] Alternatively, as shown in Figure 7(b), in the cooling tank 7, a motor 7a-driven chain conveyor 7b is provided inside the tank, and the lugs A of the anode A are located on the upper surfaces of the endless tracks on both sides of this chain conveyor 7b. L , A R By placing the anode A on the track, it is transported in the longitudinal direction of the cooling tank 7 while being immersed in the cooling water inside the tank and cooled. In this way, the ear portion A is placed on the track. L , A R When the ear portion A is placed on it L , A R The inspection may also be performed. In this case, the inspection can be performed simply by moving the anode thickness inspection jig 10 up and down relative to the automatically transported anode A, making the inspection extremely simple and efficient.
[0021] Ear portion A as measured by the anode thickness inspection jig 10 described above L , A R In the examination, ear part A L , A R The pass / fail status can be easily determined by whether or not the inspection unit 13 can be inserted into it. Specifically, for example, the left ear portion A of anode A. L When inspecting, as shown in Figure 8(a), the front part of the inspection section 13 is clamped by a pair of clamping parts 11a and 11b on the ear part A L It can be inserted, but ear portion A is located behind the stepped portion 15. L If it is not possible to sandwich it, ear part A LSince it satisfies both the upper and lower limits of the allowable thickness range, it can be judged as passing. On the other hand, as shown in Figure 8(b), the ear portion A of anode A L If it can be inserted further back than the stepped portion 15, then ear portion A L The thickness is below the lower limit of the acceptable range, so it can be judged as unacceptable, and as shown in Figure 8(c), ear portion A of anode A L If it cannot be gripped by the pair of clamping parts 11a and 11b on the front side of the inspection section 13, then this left ear part A L The thickness exceeds the upper limit of the acceptable range, so it can be judged as unacceptable.
[0022] As described above, by using the anode thickness inspection jig of the embodiment of the present invention, the left and right ear portions A L , A R As shown above, by simply checking whether the inspection part of the anode thickness inspection jig can be clamped onto a specific part of anode A, it is possible to easily determine whether the thickness of that specific part exceeds the upper limit of the allowable range or falls below the lower limit of the allowable range.
[0023] 3. Method for manufacturing anodes Next, a method for manufacturing an anode for copper electrolysis using the anode thickness inspection jig of the embodiment of the present invention described above will be explained. This anode manufacturing method includes a casting step in which refined crude copper with a copper content of 99% or more, produced in the preceding smelting furnace, is transferred using one or more troughs and then sequentially cast into a plurality of anode molds placed at equal intervals in the circumferential direction on an intermittently rotating turntable; a solidification step in which the refined crude copper cast into the anode molds is cooled and solidified by spraying cooling water onto it; a peeling step in which the solidified anodes are peeled off from the anode molds; a cooling step in which the peeled anodes are supported by the ears on both sides and suspended, and then immersed in cooling water in a cooling tank to cool them; and a suspension step in which the anodes A cooled in the cooling tank are temporarily held on a suspension stand in a suspended state so that they can be transported in groups by forklift. The ears of the anodes suspended in the cooling tank are inspected to see whether they can be gripped by the front and back sides of the inspection section 13 of the anode thickness inspection jig 10.
[0024] And, as a result of the above examination, ear portion A of anode A L , A R If the thickness of at least one of the parts is outside the acceptable range, the height of the four corners of the anode mold 2 in plan view is adjusted using a wedge-shaped or plate-shaped liner L on the underside of the corresponding anode mold 2 on the turntable 1 in which the anode A was cast, as shown in Figure 9. For example, the left ear part A of anode A. L If the thickness exceeds the upper limit of the acceptable range, the left ear portion A in the anode mold 2 L Since too much refined crude copper is present in the casting area, this lug A in the anode mold 2 L As shown in Figure 9, a liner L is inserted beneath the part to be cast, or if a liner is already inserted in this part, its thickness is increased. This results in this lug A L Since the height of the casting area can be relatively increased, the amount of refined crude copper that enters this area can be reduced.
[0025] Conversely, the left ear portion A of anode A LIf the thickness falls below the lower limit of the acceptable range, the left ear portion A in the anode mold 2 L Since there is insufficient amount of refined crude copper in the casting area, this lug A in the anode mold 2 L If a liner is already inserted beneath the part to be cast, remove it, replace it with a thinner one, or insert liner L into another part. This will result in this ear part A L Since the height of the casting area can be relatively lowered, a larger amount of refined crude copper can be placed in this area.
[0026] The above describes an anode thickness inspection jig according to an embodiment of the present invention and a method for manufacturing an anode using the inspection jig. However, the present invention is not limited to the above embodiments, and various modifications and alternatives can be included without departing from the spirit of the present invention. For example, the anode thickness inspection jig according to the above embodiment of the present invention inspects the thickness of the left and right ear portions of the anode, but is not limited thereto, and may also inspect the thickness of, for example, the upper, side, or lower portion of the substantially rectangular plate-shaped part of the anode. [Examples]
[0027] Anodes for electrolytic refining in copper smelting were manufactured using an anode casting facility as shown in Figure 1. Specifically, refined crude copper with a copper content of 99% or more, produced in a smelting furnace, was discharged from the smelting furnace and transferred using three troughs 3. Two turntables 1 rotated intermittently, and this refined crude copper was sequentially cast into 18 anode molds placed on each of them. The refined crude copper was then solidified by spraying cooling water with a cooling device 4. After that, the anodes A were peeled off from the anode molds using a peeling machine 5, and their ear portions A L , A R The anodes were suspended by a chain conveyor 7b in the cooling tank 7 and immersed in cooling water. After this, the anodes A cooled in the cooling tank were temporarily held in a suspended state on a suspension stand 8 in order to be transported in batches by forklift. The ear portion A of the anode A suspended on this suspension stand 8 L , A RFor this purpose, a thickness inspection was performed using an anode thickness inspection jig 10 having the shape shown in Figure 3.
[0028] This anode thickness inspection jig 10 is formed from a metal plate with a thickness of 5 mm, a width of 30 mm, and a height of 50 mm, and consists of a gate-shaped inspection section 13 made of a pair of clamping sections 11a and 11b and a connecting section 12 between them. A single iron rod, 500 mm long and 10 mm in diameter, is erected as a gripping section 14 in the outer center of the connecting section 12. Furthermore, an L-shaped stepped section 15 is provided at the corner where the right side 11a of the pair of clamping sections 11a and 11b joins the connecting section 12 inside the inspection section 13. This allows the pair of clamping sections 11a and 11b to grip the ear portion A of the anode A. L , A R The first width D1 is equal to the upper limit of the allowable thickness, and the ear portion A of the anode A is located behind the stepped portion 15 in the inspection section 13. L , A R The second width D2 was used to create a gap of one step, which is equal to the lower limit of the allowable thickness.
[0029] The gripping portion 14 of the anode thickness inspection jig 10 described above is used to grip the lug portion A of the anode A supported by the chain conveyor 7b in the cooling tank, as shown in Figure 7. L , A R We investigated whether the anode A and ear portion A of the object to be examined could be gripped by the front and back sides of the inspection unit 13. That is, as shown in Figure 8, L , A R In this regard, if the anode can be gripped at the front side of the inspection section 13 which is spaced apart by a first width D1, and cannot be gripped beyond the stepped section 15 which is spaced apart by a second width D2 (Figure 8(a)), it is judged to be a pass, and if it can be gripped beyond the stepped section 15 (Figure 8(b)) or if it cannot be gripped at the front side of the inspection section 13 (Figure 8(c)), it is judged to be a fail. Then, as a result of the above judgment, the thickness of the liner L was adjusted in the anode mold 2 in which the anode judged to be a fail was cast, as shown in Figure 9, so that the lug A L , A R The height of the part where the casting takes place was adjusted.
[0030] Anodes were produced from 72 batches of refined crude copper using the method described above. Then, for each batch, at 1 hour, 3 hours, and 5 hours after the start of casting, the anode thickness inspection jig 10 described above was used to inspect the lugs A of 36 anodes A. L , A R The thickness was inspected. As a result, on average, the height of 0.5 anode molds 2 could be adjusted per batch.
[0031] As a comparative example, without using the anode thickness inspection jig 10 described above, the anode removed from the cooling tank 7 was moved using a forklift to the destination anode storage area, where a worker used a caliper to inspect the lug portion A. L , A R The thickness was measured. Otherwise, anodes were produced from 22 batches of refined crude copper in the same manner as in the above example. In this comparative example, when the same amount of work time as in the example was used, 18 anodes A had their ear portions A measured at a frequency of once every 11 batches. L , A R However, it was not possible to measure the wall thickness. As a result, on average, only 2 anode molds per 11 batches could have their height adjusted.
[0032] As described above, by using the anode thickness inspection jig 10 that satisfies the requirements of the present invention, the thickness of the anode lugs can be easily inspected. As a result, in the examples, an average of more than 60 times the number of anodes per batch could be inspected compared to the comparative example, and based on these inspection results, the height of the anode mold could be finely adjusted in the examples. [Explanation of Symbols]
[0033] 1 Turntable 2 Anode mold 3 Hibe 4 Cooling device 5 Peeling machine 6. Release agent sprayer 7 Cooling tank 7a Drive motor 7b Conveying means 8 Suspension platform 9 Transfer machine 10, 20, 30, 40, 50 Anode thickness inspection fixtures 11a, 21a, 31a, 41a, 51a Right side of the clamping part 11b, 21b, 31b, 41b, 51b Left side of the clamping section 12, 22, 32, 42, 52 Connection parts 13, 23, 33, 43, 53 Inspection Department 14, 24, 34, 44, 54 Grip part Stepped sections: 15, 25, 35a, 35b, 45, 55a, 55b Anode F Forklift tines L Liner
Claims
1. An anode thickness inspection jig comprising a metal inspection section consisting of a pair of opposing clamping sections spaced apart by a width equal to the upper limit of the allowable thickness of a specific part of the anode, and a connecting section connecting one end of the pair of clamping sections, and a metal rod-shaped gripping section attached to the connecting section, wherein the inspection section has a stepped section on its rear side, making it one step narrower, and the width of this one step narrower section is equal to the lower limit of the allowable thickness of a specific part of the anode.
2. The anode thickness inspection jig according to claim 1, characterized in that the inspection section, comprising the pair of clamping and connecting sections, has a wall thickness of 3 mm or more and 10 mm or less, and when the gripping section is facing directly upward and the inspection section is viewed from the direction in which the pair of clamping sections are separated, the width is 10 mm or more and 30 mm or less, and the height is 40 mm or more and 100 mm or less.
3. The anode thickness inspection jig according to claim 2, characterized in that the upper limit of the allowable thickness is 35 mm or more and 55 mm or less, and the lower limit of the allowable thickness is 20 mm or more and 40 mm or less.
4. The anode thickness inspection jig according to claim 1, characterized in that the stepped portion consists of a bent portion with a substantially L-shaped cross-section provided at the corner where one of the pair of clamping portions and the connecting portion are joined.
5. A method for manufacturing an anode for copper electrolysis, comprising the steps of: transferring refined crude copper with a copper content of 99% or more produced in a smelting furnace using one or more troughs and sequentially casting it into a plurality of anode molds placed at equal intervals in the circumferential direction on an intermittently rotating turntable; cooling and solidifying the refined crude copper cast into the plurality of anode molds; peeling the cast anodes from the plurality of anode molds; cooling the peeled anodes by immersing them in cooling water while they are suspended by the lugs on both sides; and holding a plurality of the cooled anodes together in a suspended state on a suspension stand, wherein the method for manufacturing an anode is characterized by checking whether the thickness of a specific part of the anode in the suspended state is within an acceptable range by checking whether the inspection part of the anode thickness inspection jig described in claim 1 can be sandwiched between the specific part of the anode in the suspended state.
6. The method for manufacturing an anode according to claim 5, characterized in that, if the thickness of a specific part of the anode is not within the allowable range as a result of the inspection, the height of the anode mold placed on the turntable is adjusted by a liner.