JP4884439B2 - Eliminating apparatus for defective cathode plate and method for eliminating defective cathode plate - Google Patents

Description

  The present invention relates to a defective cathode plate elimination apparatus and a defective cathode plate elimination method. More specifically, the present invention relates to a cathode plate in which a refined metal is electrodeposited by electrolytic refining or the like, and a cathode plate that has become defective due to the occurrence of bumps or curvature. The present invention relates to an apparatus for removing a defective cathode plate and a method for removing a defective cathode plate.

  Electrolytic refining is a technique for producing pure metal by taking advantage of differences in anodic dissolution or cathode deposition depending on the element. For example, the electrolytic refining of copper using a permanent cathode (PC) by the ISA method involves a large number of stainless steel cathode plates (cathode plates) and an anode plate in which crude copper is cast (electrolytic solution). Anode plate) is alternately immersed and energized, whereby electrolytic copper is electrodeposited on both sides of the cathode plate. The electrolytic copper electrodeposited on the surface of the cathode plate is stripped off by a stripping device to become a product. Specifically, as shown in FIG. 1, the cathode plate 1 is a plate-shaped material made of stainless steel, and a protector 5 made of synthetic resin is fitted into both side portions thereof, and a crossbar 4 is fitted to the upper end portion thereof. It has. Two windows 3 and 3 are provided on the lower side of the cross bar 4, and a hook of a cathode plate transport device (not shown) is hooked on the windows 3 and 3 so as to be charged into the electrolytic cell. And take-out and conveyance. The cathode plate 1 made of stainless steel has been widely adopted in recent years because it is strong and can be used repeatedly, and has good flatness, so that short-circuiting during electrolytic purification is less likely to occur. And the electrolytic copper stripped off from both surfaces of the cathode plate 1 is transported by a transport device as a set of two sheets, flat press for ensuring flatness, and further to give unevenness like corrugated electrolytic copper Corrugation will be performed and provided as a product.

  Here, when the cathode plate is transported to the stripping device by the traverse conveyor, if there is a bump or curvature in the cathode plate, the equipment and devices arranged around the traverse conveyor Contact may cause trouble. In other words, since the cathode plate is conveyed in the direction parallel to the surface of the cathode plate by the traverse conveyor, the width of the portion where the cathode plate moves is relatively narrow. Therefore, if there is a large bump on the surface of the cathode plate or the cathode plate itself is curved, there is a possibility that it will come into contact with surrounding equipment or devices. Further, when a large bump is generated on the lower side of the cathode plate, there is a risk of causing a conveyance trouble by contacting with the bottom surface of the conveyance path of the traverse conveyor. If there is a contact or transportation trouble with equipment or equipment, it is necessary to stop the traverse conveyor and take measures to cope with it, as well as reducing the work efficiency of the entire copper plate recovery system. Connection and productivity are greatly reduced. Furthermore, the electrolytic copper plate with bumps and curvatures is not a product.

  Therefore, conventionally, the operator of the stripping apparatus checks the quality of the cathode plate one by one, and when a defective cathode plate is found, the line is stopped and the defective cathode plate is removed from the line. However, stopping the line and eliminating defective cathode plates has lowered the operating rate of the entire factory, which has been a major factor in reducing the operation efficiency.

By the way, in the seed plate method widely adopted as the conventional electrolytic refining, electrolysis was performed using a SUS plate or a titanium base plate as a cathode, and a thin plate electrodeposited on the base plate was peeled off and used as a seed plate. . If an oxide film (TiO ₂ ) or the like is formed on the surface of the base plate, the electrodeposition state of the electrodeposited metal may be deteriorated, which may cause problems such as generation of a mesh (perforated). . Therefore, when there is a problem with the mother board pulled up from the electrolytic cell, the following mother board automatic dispensing method has been proposed as a method for eliminating the problem. That is, a reflective member that reflects visible light or infrared light is installed as a detection means at a predetermined location on the crossbar of the mother board, and visible light or infrared light is projected onto the reflection member as detection means, and the reflected light from the reflection plate is received. Then, a phototube that emits a signal is provided, whereby a defective mother board is paid out of the line (Patent Document 1).

JP 2001-200385 A

  In the automatic mother board payout method of Cited Document 1, the position of the crossbar of the mother board to which the reflecting member is attached needs to be correctly arranged at a position where the detecting means can detect the reflection of light by the reflecting member, and the reflecting When the attachment position of the base plate of the member to the cross bar is shifted, there is a possibility that the detection means cannot detect the reflection of light even though the reflection member is attached. Further, in the case where the detection means detects the light reflected by the reflection member in this way, the reflection of light by the reflection member is hindered, or the light detection portion of the detection means is reflected by the influence of dirt. In such a case, the defective mother board may not be removed. Therefore, it is necessary to frequently check and clean the reflecting member and the detecting means, and the work is troublesome.

  In addition, it is also inefficient in terms of equipment to install a device that removes defective cathode plates to the reject conveyor side and a device that transfers cathode plates to the traverse conveyor, and there is a desire to use the same if possible. It was.

  Therefore, the present invention mechanically eliminates cathode plates that are defective due to bumps, curvature, etc., among cathode plates electrodeposited with refined metal by electrolytic refining, and traverse caused by the defective cathode plates. Provided is a defective cathode plate elimination device and a defective cathode plate elimination method capable of preventing troubles in conveyors and stripping devices and improving production efficiency of the entire refined metal recovery system. For the purpose.

  In order to solve the above-mentioned problem, the present invention according to claim 1 is directed to an apparatus for eliminating a defective cathode plate for eliminating a defective cathode plate from cathode plates electrodeposited with purified metal by electrolytic purification. It is placed on the front side of the stripping machine that strips the refined metal electrodeposited on the surface. A detection bar that detects that the cathode plate is defective by contacting the protrusion of the arranged detection dog, and the detected cathode plate that has been detected are transferred to the reject conveyor and removed, and the rest The cathode plate is configured to include a transfer device that transfers to a traverse conveyor.

  In order to solve the above-mentioned problem, the present invention according to claim 2 is the apparatus for eliminating a defective cathode plate according to claim 1, wherein the length of the portion of the detection bar where the protruding portion of the detection dog contacts is the cathode plate. The cross bar is substantially the same length as that of the cross bar and is arranged in parallel with the cross bar.

  In order to solve the above-mentioned problem, the present invention described in claim 3 is the defective cathode plate rejection apparatus according to claim 1 or 2, wherein the transfer device is a traverse conveyor or a reject conveyor arranged one after the other. The suspension plate is provided with a suspension portion for transferring while supporting the cathode plate in a suspended state, and the suspension portion moves to the reject conveyor side when the suspended cathode plate is a defective cathode plate, and rejects the defective cathode plate. In the case of other cathode plates, it is transferred to a traverse conveyor.

  In order to solve the above-mentioned problem, the present invention described in claim 4 is the rejection cathode plate rejection apparatus according to any one of claims 1 to 3, wherein the reject conveyor is configured to move the defective cathode plate downward. It is formed so that it may convey toward the direction.

  In order to solve the above-mentioned problem, the present invention according to claim 5 is the stocker by grasping both sides of the defective cathode plate conveyed by the reject conveyor in the apparatus for rejecting a defective cathode plate according to claim 4. A gripping device that is transferred to the conveyor is further provided, and the stock conveyor is formed so as to support and convey the lower portion of the transferred negative cathode plate.

  In order to solve the above-mentioned problem, the present invention according to claim 6 is the negative cathode plate elimination apparatus according to any one of claims 1 to 5, further comprising a negative cathode plate disposed on the front side of the traverse conveyor, Cathode provided with detecting means for detecting that the cathode plate is defective by contacting the bump only when the bump is generated at the bottom of the plate, and the cathode determined to be defective based on the detection result detected by the detecting means The board is transferred to the reject conveyor by the transfer device without being transferred to the traverse conveyor and is eliminated.

  In order to solve the above-mentioned problem, the present invention according to claim 7 is a method of eliminating a defective cathode plate for eliminating a defective cathode plate among cathode plates electrodeposited with purified metal by electrolytic purification. A step of attaching a detection dog having a protruding portion above the crossbar of the cathode plate, which is regarded as defective, out of a number of cathode plates pulled up from the electrolytic cell after refining, and the protruding portion of the detection dog is the cathode plate A step of detecting that the cathode plate is defective by contacting a detection bar disposed on the front side of the stripper for stripping the refined metal electrodeposited on the surface of And a step of removing the cathode plate from the stripping line.

  In order to solve the above problems, the present invention according to claim 8 is the method of discharging a defective cathode plate according to claim 7, wherein the length of the portion of the detection bar where the protruding portion of the detection dog contacts is the cathode plate. The crossbar is substantially the same length and is arranged in parallel with the crossbar.

  According to the defective cathode plate elimination apparatus and the defective cathode plate elimination method according to the present invention, the defective cathode plate is automatically and mechanically eliminated before being transferred to the traverse conveyor, so the line is stopped. The removal work can be performed without any problem, and the production efficiency of the entire refined metal recovery system can be improved.

  Further, according to the defective cathode plate elimination apparatus and the defective cathode plate elimination method according to the present invention, it is possible to prevent a trouble in conveyance in the traverse conveyor and a trouble in the stripping apparatus caused by the defective cathode plate. There is an effect.

  Hereinafter, a defective cathode plate elimination apparatus and a defective cathode plate elimination method according to the present invention will be described in detail with reference to the drawings. FIG. 2 is a schematic view showing an embodiment of a recovery line for electrolytic copper purified by electrolytic purification.

  First, the outline of the illustrated electrolytic copper recovery line 100 will be described. After the electrolytic purification is completed, a large number of cathode plates 1 pulled up from the electrolytic cell are carried to the washing conveyor 101 of the electrolytic copper recovery line 100 by a conveying device (not shown). The cathode plate 1 transferred to the cleaning conveyor 101 is checked for abnormalities such as bumps at the bottom of the cathode plate 1 by a bottom detection device 60 disposed in front of the cleaning chamber 101a. The cathode plate 1 in which an abnormality is detected by the bottom detection device 60 is transferred and rejected to the reject conveyor 26 (see FIG. 3) by a defective cathode plate elimination device 10 described later.

  On the other hand, a large number of cathode plates 1 are sequentially conveyed by a cleaning conveyor 101 and cleaned by watering in the cleaning chamber 101a. Then, the cathode plate 1 that has been cleaned is carried to the defective cathode plate elimination device 10 according to the present invention. In the defective cathode plate elimination device 10, the defective cathode plate 1 is transferred to the reject conveyor 26 that is driven in the vertical direction, and the other cathode plates 1 are transferred to the traverse conveyor 105 to be removed. To send to. The cathode plate 1 sent to the stripping device 107 is stripped of electrolytic copper from the surface of the cathode plate 1 through flexing, chiseling and the like. The peeled electrolytic copper is caulked by a press device 109a, 109b as a set, loaded by the loading device 110, and when the predetermined number of sheets is reached, the weight is measured by the weighing device 111 and bound by the binding device 113. To be a product. Further, the cathode plate 1 from which the electrolytic copper has been peeled off is further conveyed by a traverse conveyor 105, polished and cleaned, and used again as the cathode plate 1 through the conveyor 122. In addition, when there is an inconvenience in reuse as it is due to deformation or the like, the sorting device 120 excludes it to the stock conveyor 121 side.

  On the other hand, the defective cathode plate 1 transferred to the reject conveyor 26 by the transfer device 10 is transported downward and stored in the stock conveyor 103. Then, the defective cathode plate 1 is separately subjected to manual copper stripping, and stripping of the electrical copper is performed. The cathode plate 1 after the electrolytic copper is stripped is checked for deformation and the like, and if there is no problem, it is used again as the cathode plate 1 for electrolytic purification.

  The defective cathode plate elimination device 10 according to the present invention is disposed on the front side of the stripping device 107 in the electrolytic copper recovery line 100 as described above. FIG. 3 is a left side view of an embodiment of the defective cathode plate rejection apparatus 10 according to the present invention, FIG. 4 is a front view of the defective cathode plate rejection apparatus 10, and FIG. 5 is a plan view of the defective cathode plate rejection apparatus 10. 6 is a rear view of the defective cathode plate elimination device 10, FIG. 7 is a perspective view of the detection dog, FIG. 8 is a schematic diagram showing detection of the defective cathode plate, and FIG. 9 is an explanation showing the operation mechanism of the bottom detection device. FIG.

  As shown in FIG. 3, the defective cathode plate rejection apparatus 10 schematically transfers the defective cathode plate 1 out of the cathode plate 1 electrodeposited with the electrolytic copper carried by the cleaning conveyor 101 to the reject conveyor 26. The other cathode plate 1 is moved in contact with a transfer device 20 for transferring to the traverse conveyor 105 and a detection dog 40 (described later) attached in advance to the cross bar 4 of the cathode plate 1 determined to be defective. And a bar 30.

  First, as shown in FIG. 7, the detection dog 40 has a U-shaped cross section with a recess 43 having a width that is slightly wider than the width of the crossbar 4. The contact piece 41 is arranged so as to protrude upward. The contact piece 41 has a height size capable of contacting at least a detection bar 30 described later. The detection dog 40 is preferably made of metal, but the material is not particularly limited. The detection dog 40 is attached to the crossbar 4 by an operator, although anomalies are found in the shape of the electrolytic copper among the many cathode plates 1 that are lifted up from the electrolytic cell after the electrolytic purification is completed. A large number of cathode plates 1 including the cathode plate 1 to which the detection dog 40 is attached are conveyed to the cleaning conveyor 101 by a transfer device (not shown), and after being cleaned by watering in the cleaning chamber 101a, the transfer device is sequentially transferred. It is sent to the 20 side.

  The detection bar 30 is disposed on the upper side of the terminal end of the cleaning conveyor 101 and below the transfer device 20. The detection bar 30 contacts the contact piece 41 of the detection dog 40 but does not have the detection dog 40 attached thereto. It is arrange | positioned in the height position which does not contact with the upper end part. As shown in FIG. 8, the detection bar 30 is provided on the cathode plate 1 via a support bar 31 arranged so as to be swingable about its longitudinal direction and two arm portions 35, 35 extending from the support bar 31. The contact bar 33 is formed to extend in a direction orthogonal to the traveling direction. The contact bar 33 that contacts the contact piece 41 of the detection dog 40 in the detection bar 30 has substantially the same length as the cross bar 4 and is arranged in parallel with the cross bar 4. As a result, the contact piece 41 always comes into contact with the contact bar 33 no matter where the detection dog 40 is attached to the cross bar 4, so that the defective cathode plate 1 can be identified without paying attention to the attachment position of the detection dog 40. Work can be done. The defective cathode plate 1 is detected three times before the removal of the defective cathode plate 1 by the transfer device 20.

  The detection bar 30 is provided with a switching member 37, and the switching member 37 pushes down the detection switch 51 of the detector 50 as the contact bar 33 swings due to the contact of the contact piece 41, thereby causing a defective cathode. The plate 1 is detected.

  The detector 50 is a device for electrically detecting that the defective cathode plate 1 has been carried. When the detection switch 51 is pushed in by the switching member 37, the detector 50 is electrically detected and the detection signal is output. This is sent to a control device (not shown), thereby controlling the movement of the transfer device 20. That is, when a control device (not shown) receives the detection signal, the control device sends a control signal to the transfer device 20, and based on the control signal, the transfer device 20 transfers the defective cathode plate 1 to the reject conveyor 26 and discharges it. On the other hand, when no control signal is sent, the cathode plate 1 is transferred to the traverse conveyor 105. The configuration of the transfer device 20 will be further described.

  In general, the transfer device 20 includes a base 21 disposed on the rails 20a and 20a so as to be movable in the same direction as the transport direction in the cleaning conveyor 101, a moving member 22 disposed on the base 21, and a movement. A hook 24 that is disposed on the lower side of the member 22 and is inserted into the windows 3 and 3 of the cathode plate 1 to suspend and suspend the cathode plate 1, and a moving member 22 that hangs the normal cathode plate 1 are connected to the traverse conveyor 105. The cylinder device 22a positioned on the upper side, the upper and lower cylinders 25 for lowering the normal cathode plate 1 onto the traverse conveyor 105, and the base 21 when the suspended cathode plate 1 is a defective cathode plate 1 are traversed. And a cylinder device 26a that moves to the reject conveyor 26 side that is disposed further forward of the conveyor 105.

  The transfer device 20 includes a frame structure formed of iron pillars and beams, and includes a traverse conveyor 105, a reject conveyor 26, and a stock conveyor arranged along the terminal end side of the cleaning conveyor 101 and the conveying direction of the cathode plate 1. It is installed so as to straddle the upper part of the start end side of 103. Two rails 20a and 20a are arranged in the upper part of the frame along the conveying direction, and a base 21 is movably arranged on the rails 20a and 20a. Further, a moving member 22 is slidably mounted on the upper side of the base 21, and the moving member 22 slides on the base 21 by a cylinder device 22a. In addition, the base 21 can move the rails 20a and 20a by the cylinder device 26a in order to carry the defective cathode plate 1 to the lifting conveyor 26.

  The moving member 22 is provided with a hook 24 that is inserted into the windows 3 and 3 of the cathode plate 1 and suspends and hangs down the cathode plate 1. The hook 24 is formed movably by a hook cylinder 24 a. When 1 is suspended by the hook 24, the cylinder device 22a presses the moving member 22 to move the cathode plate 1 to the upper side of the traverse conveyor 105. Then, the hooks 24 are rotated by the hook cylinders 24a, 24a to release the engagement, the cathode plate 1 is placed on the traverse conveyor 105, and the upper and lower cylinders 25 press the cathode plate 1 to perform secure fixing. Is called.

  On the other hand, the reject conveyor 26 is a conveyor that guides the defective cathode plate 1 to the stock conveyor 103 installed at a position lower than the height position where the cleaning conveyor 101 and the traverse conveyor 105 are installed, and stands in the vertical direction. It is arranged to be installed. The reject conveyor 26 is formed by a chain conveyor, and has a structure for transporting the defective cathode plate 1 to the stock conveyor 103 disposed on the lower side. The reason why the stock conveyor 103 is disposed at a position relatively lower than the height position where the cleaning conveyor 101 and the traverse conveyor 105 are installed is that the defective cathode plate 1 sent to the stock conveyor 103 In order to lift the hoist crane with the hoist crane, it is necessary to secure a space above the stock conveyor 103 where the hoist crane can move, and the level of the stock conveyor 103 is determined from the workability after the rejection.

  As described above, the stock conveyor 103 is installed at a position lower than the height position where the cleaning conveyor 101 and the traverse conveyor 105 are installed, and the defective cathode that has been conveyed to the stock conveyor 103 by the reject conveyor 26. A gripping mechanism 103 a for gripping both sides of the plate 1 and pulling it into the stock conveyor 103 is provided. The gripping mechanism 103a is also structured to operate by a cylinder mechanism. Thereby, the defective cathode plate 1 is transferred to the stock conveyor 103 so that both sides can be held. The stock conveyor 103 does not support the crossbar 4 of the defective cathode plate 1 but holds the lower side of the defective cathode plate 1.

  On the other hand, a bottom detection device 60 is provided on the front side of the cleaning chamber 101a, and the bottom detection device 60 detects a defective cathode plate 1 having a bump on the lower side of the cathode plate 1. As shown in FIG. 9, the bottom detection device 60 comes into contact with the bump 70 when the cathode plate 1 in which the bump 70 having a height h or more which is regarded as defective is generated at the bottom of the cathode plate 1 passes. Thereby, the cathode plate 1 is pushed down in the conveying direction (X direction in FIG. 9), and after the cathode plate 1 passes, the detector plate 61 is arranged so as to return to the original position, and the detector plate 61. A magnetic generator 63 disposed so as to be tilted in conjunction with the depression of the magnet, and a magnetic detector 65 for detecting magnetism generated from the magnetic generator 63, wherein the magnetism is generated in conjunction with the depression of the detection plate 61. The magnetic detector 65 is configured to detect a change in the magnetic field caused by the tilting of the device 63.

  As shown in the figure, the detection plate 61 is a plate-like member having a length longer than the length of the cathode plate 1 in the width direction, and is arranged on both the left and right sides by shafts 61a provided on the left and right lower sides. The base portion 62 is rotatably supported. With this configuration, the detection plate 61 can be pushed down in the transport direction (X direction) of the cathode plate 1 around the shaft 61a. The detection plate 61 is provided with a return mechanism (not shown) by means such as a spring, for example, and is formed so as to always stand up (state shown in FIG. 3) when no force is applied. Has been. Thereby, when the cathode plate 1 passes above the detection plate 61, the bump 70 generated at the bottom of the cathode plate 1 comes into contact with the detection plate 6120, so that the detection plate 61 is in the conveying direction of the cathode plate 1. After the cathode plate 1 is pushed down in the direction and the cathode plate 1 passes, the detection plate 61 is raised again by a return mechanism (not shown) to return to the original state. Here, in electrolytic refining, since a highly reactive electrolytic solution such as a copper sulfate solution is used, the detection plate 61 is preferably made of stainless steel, for example, a material having corrosion resistance such as SUS316.

  The clearance between the upper end surface of the detection plate 61 and the lower end portion of 1 passing over the detection plate 61 is preferably at least about 10 mm. As a result, the cathode plate 1 in which the lower bump 70 having a height h of 10 mm or more is generated at the bottom of the cathode plate 1 can be eliminated as defective. And the magnitude | size of the bump 70 which should be excluded can be adjusted by changing a clearance suitably.

  Further, a magnetic generator 63 that is tilted in conjunction with the pressing of the detection plate 61 is disposed on one of the shafts 61 a supported by the base 61. A magnetic detector 65 for detecting magnetism generated from the magnetic generator 63 is disposed in the vicinity of the magnetic generator 63, and the magnetic generator 63 is also erected in the vertical direction when the detection plate 61 is upright. In addition, when the detection plate 61 is pushed down, the magnetism generator 63 is also tilted in conjunction with it and is located away from the magnetism detector 65. The magnetic detector 65 detects the change in magnetism accompanying the change in the position of the magnetic generator 63 so that the cathode plate 1 in which the bump 70 is generated on the lower side passes above the detection plate 61. to decide. Note that it is only necessary that the magnetic detector 65 detects a change in the position of the magnetic generator 63 when the detection plate 61 is pushed down, and the present invention is not limited to this embodiment.

  The detection signal detected by the magnetic detector 65 is sent to a control device (not shown), and the control device (not shown) that receives the detection signal rejects the cathode plate 1 without transferring it to the traverse conveyor 105. An exclusion signal instructing to send to the conveyor 26 side is sent to the transfer device 20. The cathode plate 1 is transferred to the reject conveyor 26 based on the transfer device 20 exclusion signal.

  The series of operations described above are all performed automatically under sequence control by an electrical control device (not shown) such as a computer (not shown).

  Next, the defective cathode plate removal method according to the present invention will be described together with the operation of the defective cathode plate removal apparatus 10 described above. FIG. 10 is a flowchart of an embodiment of the method for eliminating a defective cathode plate according to the present invention.

  After the electrolytic purification is completed, the cathode plate 1 pulled up from the electrolytic cell is visually inspected by a worker, and a detection dog 40 is attached to a predetermined portion of the cross bar 4 of the cathode plate 1 in which an abnormality is observed in the external shape ( Step S1). In this case, the detection dog 40 may be attached to any location of the cross bar 4. A large number of cathode plates 1 including the cathode plate 1 to which the detection dog 40 is attached are carried to a cleaning conveyor 101 by a transfer device (not shown), and after being cleaned by watering in the cleaning chamber 101a, the transfer device 20 side is sequentially provided. Sent out.

  Here, when the detection plate 61 of the bottom detection device 60 arranged on the front side of the cleaning chamber 101a comes into contact with the bump 70 generated at the lower part of the cathode plate 1 and pushes down the detection plate 61, the magnetic detector 65 becomes the magnetic generator. The magnetic change 63 is detected (step S2), and the detection signal is sent to a control device (not shown). The control device (not shown) that has received the detection signal sends a control signal to the transfer device 20 to transfer the cathode plate 1 to the reject conveyor 26 side.

  On the other hand, when the defective cathode plate 1 with the detection dog 40 attached to the cross bar 4 is conveyed, the contact piece 41 of the detection dog 40 comes into contact with the contact bar 33 of the detection bar 30 and swings the detection bar 30. . Along with this, the switching member 37 depresses the detection switch 51 of the detector 50, and thereby the detector 50 electrically detects that the defective cathode plate 1 has been conveyed (step S2). Note that the detection is performed three sheets before the transfer device 20.

  When the detector 50 detects the defective cathode plate 1, the detection signal is sent to a control device (not shown), and the control device that has received the detection signal sends the cathode plate 1 after the transfer to the transfer device 20 to the reject conveyor 26. A control signal is sent so as to be transferred and eliminated (step S3). Then, based on the control signal that has been sent, the transfer device 20 transfers and removes the three cathode plates 1 to the reject conveyor 26 (step S4). The defective cathode plate 1 transferred to the reject conveyor 26 is transported downward and transferred to the stock conveyor 103 by the gripping mechanism 103a (step S5).

  On the other hand, when the transfer device 20 does not receive an exclusion signal that is a control signal from a control device (not shown), the transfer device 20 transfers the cathode plate 1 to the traverse conveyor 105 (step S6). In addition, the upper and lower cylinders 25 press the cathode plate 1 so that the cathode plate 1 is securely held on the traverse conveyor 105 during transfer. Then, the cathode plate 1 sent to the traverse conveyor 105 is stripped of electrolytic copper by the stripping device 107, and the electrolytic copper is collected (step S7).

  Thus, according to the defective cathode plate elimination apparatus and the defective cathode plate elimination method according to the present invention, the defective cathode plate is automatically and mechanically excluded before being transferred to the traverse conveyor. The removal work can be performed without stopping the line, and the production efficiency of the entire refined metal recovery system can be improved. Further, it is possible to prevent a trouble in conveyance in a traverse conveyor and a trouble in a stripping apparatus caused by a defective cathode plate.

  As described above, preferred examples of the present invention have been described in detail, but the present invention is not limited to such specific embodiments, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

It is a perspective view which shows a permanent cathode. It is a schematic diagram of one embodiment of an electrolytic copper recovery system. 1 is a left side view of an embodiment of an apparatus for rejecting a defective cathode plate according to the present invention. It is a front view of the removal apparatus of a bad cathode plate. It is a top view of the rejection apparatus of a bad cathode plate. It is a rear view of the removal apparatus of a bad cathode plate. It is a perspective view of a detection dog. It is a schematic diagram which shows the detection of a bad cathode plate. It is explanatory drawing which shows the operation mechanism of a bottom detection apparatus. 3 is a flowchart of an embodiment of a method for eliminating a defective cathode plate according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cathode plate 3 Window part 4 Cross bar 10 Eliminating device 20 of defective cathode plate 20 Transfer device 20a Rail 21 Base 22 Moving member 22a Cylinder device 24 Hook 24a Hook cylinder 25 Upper cylinder 26 Reject conveyor 26a Cylinder device 30 Detection bar 40 Detection dog 41 Contact piece 50 Detector 60 Bottom detection device 100 Copper recovery line 101 Washing conveyor 103 Stock conveyor 103a Grasping mechanism 105 Traverse conveyor 107 Stripping device

Claims (8)

In the negative cathode plate elimination apparatus for eliminating the defective cathode plate out of the cathode plate electrodeposited with the refined metal by electrolytic purification,
A cross bar of a cathode plate, which is disposed on the front side of a stripping machine for stripping the refined metal electrodeposited on the surface of the cathode plate and is regarded as defective among a number of cathode plates lifted from the electrolytic cell after electrolytic purification is completed. A detection bar for detecting that the cathode plate is defective by contacting a protrusion of a detection dog arranged in advance at the top of
The detected bad cathode plate is transferred to the reject conveyor and removed, and the other cathode plates are transferred to the traverse conveyor,
An apparatus for eliminating a defective cathode plate, comprising: The reject device for a defective cathode plate according to claim 1,
The length of the portion of the detection bar where the protruding portion of the detection dog contacts is substantially the same as the crossbar of the cathode plate, and the defective cathode plate is disposed parallel to the crossbar. apparatus. In the exclusion apparatus of the bad cathode plate of Claim 1 or 2,
The transfer device includes a suspension part for transferring the cathode plate while hanging and supporting the traverse conveyor or the reject conveyor arranged one after the other, and the suspension part has a defective cathode plate supported by the suspension. In the case of a cathode plate, it moves to the reject conveyor side, and the defective cathode plate is transferred to the reject conveyor to be eliminated, and in the case of other cathode plates, it is transferred to the traverse conveyor. An apparatus for eliminating a defective cathode plate, characterized in that: In the exclusion apparatus of the bad cathode plate of any one of Claim 1 to 3,
An apparatus for rejecting a defective cathode plate, wherein the reject conveyor is formed so as to convey a defective cathode plate downward. The reject device for a defective cathode plate according to claim 4,
A gripping device for gripping both sides of the defective cathode plate conveyed by the reject conveyor and transferring it to the stock conveyor;
An apparatus for removing a defective cathode plate, wherein the stock conveyor is formed so as to be conveyed while supporting a lower portion of the transferred defective cathode plate. In the exclusion apparatus of the bad cathode plate of any one of Claim 1 to 5,
Furthermore, provided on the front side of the traverse conveyor, provided with a detecting means for detecting that the cathode plate is defective by contacting the bump only when a bump is generated at the bottom of the cathode plate,
A cathode plate, which is determined to be defective based on the detection result detected by the detection means, is transferred to the reject conveyor by the transfer device without being transferred to the traverse conveyor, and is eliminated. Exclusion device. In the method of eliminating a defective cathode plate for eliminating a cathode plate which is regarded as defective among the cathode plates electrodeposited with purified metal by electrolytic purification,
A process of attaching a detection dog having a protruding portion on the upper part of the cross bar of the cathode plate, which is regarded as defective among a number of cathode plates pulled up from the electrolytic cell after electrolytic purification,
When the protruding portion of the detection dog comes into contact with a detection bar arranged on the front side of a stripper for stripping the refined metal electrodeposited on the surface of the cathode plate, it is detected that the cathode plate is defective. Process,
Removing the cathode plate detected to be defective from the stripping line;
A method of eliminating a defective cathode plate, comprising: In the discharge method of the defective cathode plate according to claim 7,
The length of the portion of the detection bar where the protruding portion of the detection dog contacts is substantially the same length as the crossbar of the cathode plate, and is arranged in parallel with the crossbar, and eliminates the defective cathode plate Method.

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