JP5559637B2 - Method and apparatus for correcting anode verticality - Google Patents

Description

  The present invention relates to a method and apparatus for correcting the verticality of an anode for electrolytic refining, and more particularly, to automate the verticality correction of an anode subjected to electrolytic refining, to reduce the burden of work for correction, and during electrolytic refining. The present invention relates to a method and an apparatus for correcting the verticality of an anode for preventing a short circuit.

  In the electrolytic refining of non-ferrous metals, for example, the electrolytic refining of copper, a copper plate obtained by casting crude copper having a purity of about 99.5% obtained by oxidizing and reducing crude copper in a refining furnace into a plate-like body (hereinafter simply referred to as “ Anode ”), the permanent cathode method (hereinafter referred to as the“ PC method ”), a thin plate made of stainless steel, and the conventional method (seed plate method), a thin plate made of high-purity copper. The seed plate is used as a cathode (cathode), and each is alternately immersed in an electrolyte stored in an electrolytic cell, and a voltage is applied to apply copper to the surface of the cathode (stainless steel cathode plate or seed plate). In the case of the PC method, electrolytic copper electrodeposited in the subsequent process is peeled off from a stainless steel thin plate to obtain a product. In the case of a seed plate, the product is shipped as it is.

  In order to increase the electrolytic purification efficiency, the anode, which is the anode plate in the electrolytic purification, and the stainless cathode plate or seed plate, which is the cathode plate, are arranged in the electrolytic layer so as to be close to each other. For this reason, the poor verticality of both leads to a short circuit, which is a factor that greatly hinders productivity. In particular, in the case of the anode, even if the main body portion is flat, if the ear portion is not formed correctly, the verticality when the anode is suspended is deteriorated, leading to a short circuit during electrolytic purification. Accordingly, the anode is subjected to press working in advance and subjected to electrolytic purification after improving the verticality.

  With respect to anode pressing, Patent Document 1 discloses either one of the ear receiving angle in the suspension direction and the ear receiving position in the plate thickness direction, which are the ear press variables that influence the verticality, with respect to a plurality of anodes arbitrarily selected at any time. Alternatively, a method for correcting an electrolytic anode plate is disclosed in which the verticality is evaluated after press correction while changing both values, and the ear press variable is adjusted based on the result. Further, Patent Document 2 discloses an anode manufacturing method that maintains the perpendicularity when the anode is inserted into an electrolytic cell by cutting out the lower part of the anode into a curved surface or a flat surface.

JP 2001-89891 A JP 2000-96280 A

  However, in the above-described conventional method for correcting the verticality of the anode, the operator acquires data on the verticality of the anode by actual measurement or the like, and repeats trial and error based on reference values obtained in the past. The verticality of the anode was corrected by manually adjusting and performing an ear press. Moreover, since the average value collected every day is used for the measurement data, the adjustment of the press machine is the next day of the data acquisition date at the earliest, and it takes time to be reflected in the correction of verticality. For this reason, there are problems that it takes time to correct the verticality of the anode and it is not easy to improve the accuracy of the verticality.

  Therefore, the present invention has been made in view of such problems, and by eliminating manual work as much as possible, it is possible to automate the vertical correction of the anode, reduce the time required for the vertical correction, and Another object of the present invention is to provide a method and an apparatus for correcting the verticality of an anode which can be individually adjusted for each anode.

In order to solve the above-mentioned problems, the invention according to claim 1 is a method for correcting the verticality of an anode for correcting the verticality of an anode used for electrolytic refining of a metal. A step of having an ear receiving portion on which an ear portion of an anode having a planar ear receiving surface and a cylindrical movable portion is placed, and pressing the ear portion of the anode placed on the ear receiving portion; The verticality of the anode based on the data measured in the verticality measurement process and the process of placing the ears of the anode on the ear receiving part of the press machine that corrects the angle of the back surface of the ears that are suspended and supported by the electrolytic cell Adjusting the angle of the ear receiving portion by a drive mechanism that drives a lever arm coupled by a motor so as to be rotatable about the central axis of the cylindrical movable portion of the ear receiving portion so that the right angle is correctly corrected With And wherein the Rukoto.

In order to solve the above-mentioned problem, the present invention according to claim 2 is a verticality measuring device for measuring verticality data of an anode in a verticality correcting device for an anode which corrects the verticality of an anode used for electrolytic refining of metal. A measuring device, having a flat ear receiving surface and a cylindrical movable part, having an ear receiving part for placing the ear part of the anode, and pressing the ear part of the anode placed on the ear receiving part. By driving a press machine that corrects the angle of the back surface of the ear part that is suspended and supported by the electrolytic cell, and a lever arm that is pivotally connected around the central axis of the cylindrical movable part of the ear receiving part Ear receiving surface by rotating the cylindrical movable part of the ear receiving part so that the verticality is correctly corrected based on the drive mechanism equipped with the motor and the data measured by the vertical measuring device Adjust the tilt angle Cormorant be characterized.

The present invention according to claim 3 in order to solve the above described problems is the perpendicularity correction device of the anode according to claim 3 or 4, the motor is characterized by a pulse motor.

  According to the method and apparatus for correcting the verticality of the anode according to the present invention, the verticality of the anode is measured, and the verticality of the anode is corrected based on the measured data, thereby automating the correction of the verticality of the anode. There is an effect that the time required for correction can be shortened.

1 is a side view showing a preferred embodiment of an anode vertical straightening device according to the present invention. It is a front view of the perpendicularity correction apparatus of the anode shown in FIG. (A) is an enlarged view of the movable part and bearing of an ear receiving part, (b) is a side view which shows a clearance gap. It is a figure which shows the other structure of a metal mold | die. It is a front view in the measurement position of a perpendicularity measuring device. It is a front view in the stand-by position of a perpendicularity measuring device. It is a figure which shows the conveyance line to which the perpendicularity measuring apparatus was applied. It is a side view of a perpendicularity measuring device. It is a top view of a perpendicularity measuring device. It is a perspective view which shows the structure of a distance measurement means. It is a figure which shows the distance measurement position of an anode. It is a flowchart explaining operation | movement of the perpendicularity correction apparatus of the anode which concerns on this invention. It is a flowchart explaining the process of the perpendicularity test based on this invention.

[Configuration of Anode Vertical Correction Device]
Hereinafter, an anode vertical straightening device (hereinafter referred to as “vertical straightening device”) and an anode vertical straightening method according to the present invention will be described in detail based on a preferred embodiment. FIG. 1 is a side view showing a preferred embodiment of an anode vertical straightening device according to the present invention, and FIG. 2 is a front view of the anode vertical straightening device shown in FIG. The illustrated vertical straightening device 1 generally has an ear vertical press for correcting an ear 2e of an anode 2 (see FIG. 11) which is an anode plate for electrolytic purification formed by casting crude copper. Machine (press machine) 10, drive mechanism 20 that rotates the cylindrical ear receiving portion 15 of the ear vertical press machine 10, a verticality measuring device 30 that detects the verticality of the anode 2, and a verticality measuring device 30. (See FIG. 5) is configured to include a control device 40 that controls the drive mechanism 20 based on the acquired data.

  3A and 3B show details of the ear receiving portion, in which FIG. 3A is a front sectional view of the bearing, and FIG. 3B is a side sectional view of the shaft. As shown in FIGS. 3A and 3B, the ear receiving portion 15 has a shaft 18 (15a is a rotation center), and one end of the lever arm 16 is fixed to one end thereof. The shaft 18 is supported by bearings 19A and 19B. As shown in FIGS. 3A and 3B, the bearings 19A and 19B have a slight space in the vertical direction with respect to the shaft 18. A gap 190 having a height g is provided.

Here, the reason why the bearings 19A and 19B having the gap 190 are provided will be described. When the lever arm 16 rotates, the fulcrum for the shaft 18 needs to be held from the periphery (up, down, left and right). A vertical load at the time of pressing the ear portion 2e is received by a groove-like concave surface 14a having a semicircular cross section provided in the receiving die 14. When the lever arm 16 rotates, the receiving die 14 has a holding function for the ear receiving portion 15 and the shaft 18 in the downward direction but does not have a holding function for the upward direction. Therefore, bearings 19A and 19B having a clearance 190 are attached to the shaft 18 so that the shaft 18 can move up and down, and the ear receiving portion 15 can normally rotate. Further, even if the concave surface 14a of the receiving die 14 is worn due to long-term use of the ear vertical press 10, the bearings 19A and 19B can be moved downward.

A configuration without the bearings 19A and 19B is also possible. In this case, with respect to receiving metal mold 14 shown in FIG. 3 (a), as shown in FIG. 4 by increasing the height h from the position of the rotation center 15a of the ear receiving portion 15 and the upper surface, the concave surface 14a ear What is necessary is just to make it function as a bearing of the receiving part 15. FIG.

  As shown in FIG. 1 and FIG. 2, the ear vertical press machine 10 is roughly composed of a main body 11, a cylinder 12 that is provided in the main body 11 and moves up and down by hydraulic pressure, and is attached to the lower part of the cylinder 12 to be attached to the anode 2. A receiving die 13 that presses the ear 2e, a receiving die 14 that is disposed on the lower side of the ear 2e so as to face the receiving die 13, and the upper surface is flat, and the whole is rotatable. The ear receiving part 15 provided on the upper part of the metal receiving mold 14 and a motor (here, a pulse motor 21) whose one end is fixed to the ear receiving part 15 and the other end is a drive source of the drive mechanism 20. And a guide member 17 that supports the lower side of the base portion of the ear portion 2 e of the anode 2.

  The drive mechanism 20 includes a pulse motor 21 whose rotation state (number of rotations, drive time, rotation direction, and the like) is controlled by the control device 40, and the other end of the lever arm 16 is rotatably attached. The other end of the lever arm 16 is moved up and down in accordance with the rotation state of the lever, and the ear receiving portion 15 is rotated via the lever arm 16 so that the inclination angle of the ear receiving surface (upper surface) of the receiving die 14 is increased. And a lever driving plate 22 to be adjusted. The drive mechanism 20 is attached to the main body 11, for example.

  The control device 40 processes data from the verticality measuring device 30 to be described later and drives the pulse motor 21 of the drive mechanism 20, and includes, for example, a CPU, a semiconductor memory, other circuits, input / output devices, and the like. It is mainly composed of a so-called microcomputer, and executes processing as shown in FIG. 12 described later based on a program prepared in advance.

5 and 6 are a front view of a vertical measurement device at the measurement position and the standby position, FIG. 8 is a side view of a vertical measurement device, FIG 9 is a planar surface view of a vertical measurement device. The perpendicularity measuring device 30 is generally configured to include a distance measuring means 50, a perpendicularity detecting means 60, and an exclusion means 70. Before describing the configuration of the vertical measurement device 30, the overall outline of the conveying line having the vertical measurement device 30 will be described with reference to FIG. The anode 2 is transported in the horizontal direction in a suspended state with the ears 2 e hooked by the transport conveyor 3. The anode 2 transported in the horizontal direction (left side in the figure) by the transport conveyor 3 is then transported upward in the vertical direction by an elevator conveyor (not shown). The distance measuring means 50 of the anode verticality measuring device 30 is arranged at a position facing the main body 2c of the anode 2 when the anode 2 is conveyed in the vertical direction. The distance measuring means 50 has four distance measuring sensors 51 described later, and the distance measuring sensor 51 measures four distances to the surface of the anode 2.

  The perpendicularity detecting means 60 detects the perpendicularity of the anode 2 based on the measurement result of the distance to the surface of the anode 2 by the distance measuring sensor 51, and the measured perpendicularity of the anode 2 is good or bad. And a function of notifying the exclusion unit 70 of the result. Based on the result of determination by the verticality detection means 60, the exclusion means 70 transfers the anode 2a determined to have poor verticality to the reject conveyor 71, and transfers the anode 2b determined to have good verticality to the transfer conveyor. 72. Then, the anode 2b having good verticality is subjected to electrolytic purification as it is. As a result, a short circuit between the anode and the cathode immersed in an electrolytic cell (not shown) can be avoided, and a decrease in current efficiency due to a poor verticality of the anode can be prevented.

  The configuration of the verticality measuring apparatus 30 described above will be specifically described with reference to FIGS. As shown in FIGS. 5 and 6, the verticality measuring device 30 has a frame 31 erected on the floor G, and a horizontal movement mechanism 32 for moving the distance measuring means 50 in the horizontal direction on the frame 31. And a vertical movement mechanism 33 for moving the distance measuring means 50 in the vertical direction. The distance measuring means 50 includes a measuring plate 52 having a planar shape corresponding to the shape of the main body 2 of the anode 2 as shown in FIGS. 8 to 11, and the measuring plate 52 can be moved in the vertical direction by an air cylinder 33b. Thus, it is supported by the support 33a. Distance measuring sensors 51 are arranged at four locations on the surface of the measuring plate 52. The support 33a and the air cylinder 33b constitute a vertical movement mechanism 33 that allows the distance measuring means 50 to move in the vertical direction. On the other hand, the horizontal movement mechanism 32 is a portion comprising a support 33a and a measurement plate 52 supported by the support 33a by a linear motion mechanism in which rolling elements such as balls or rollers are interposed between the rolling surfaces, that is, distance measurement. The means 50 is moved horizontally, and the distance measuring means 50 can be moved precisely with a small frictional resistance.

  Each of the four distance measuring sensors 51 has a sensor head having a light emitting element and a light receiving element, and the emitted laser beam is not a spot beam but a line beam or an area beam having a certain spread. By making the laser beam a line beam or an area beam having a certain spread, it is possible to perform stable measurement without being affected by irregularities on the surface of the anode 2 due to the averaging effect.

  As described above, the distance measurement means 50 faces the surface of the anode 2 by the horizontal movement mechanism 32 and the vertical movement mechanism 33 to measure the distance (position shown in FIG. 5), and from this measurement position. The reason for moving between the standby positions (positions shown in FIG. 6) that are separated is that the anode 2 being transported by the elevating conveyor 4 that transports the anode 2 upward in the vertical direction should have dropped. This is because workability such as when the distance measuring means 50 is maintained is taken into consideration.

[Operation of vertical straightening device]
Next, the operation of the above-described verticality correcting device 1 will be described with reference to the drawings. FIG. 11 is a plan view showing the distance measurement position of the anode. FIG. 12 is a flowchart showing the operation of the verticality correction apparatus 1, and FIG. 13 is a flowchart showing the operation of the verticality measurement apparatus. First, as shown in FIG. 5, the anode 2 to be measured for verticality is carried into the measurement position by the transfer conveyor 3 and positioned so as to face the distance measuring means 50. The verticality measuring device is a system that operates simultaneously with the operation of the anode transport device, and is a system that automatically performs verticality measurement. Next, the operator operates the control device 40 to operate the verticality measuring device 30 and starts measuring the verticality of the anode 2 (S201).

  In the perpendicularity measuring device 30, the perpendicularity is detected by the distance measuring means 50 shown in FIGS. When the anode 2 reaches the position facing the measurement plate 52 shown in FIGS. 8 and 9 in a state where the measurement plate 52 of the distance measuring means 50 is located at the measurement position, the anode 2 is detected by each of the four distance measurement sensors 51. The distance to is measured. The measurement positions are two points on the upper and lower sides of the main body 2c of the anode 2 shown in FIG. Then, the measurement data of the distance to the surface of the anode 2 measured by the four distance measuring sensors 51 is sent to the verticality detecting means 60, and the verticality is judged based on the difference between the upper and lower measured distances at the two left and right locations. Is done. That is, the difference between R2 and R1 and the difference between L1 and L2 shown in FIG. 11 of the main body 2c of the anode 2 is calculated. For example, when any one of the difference between R2 and R1 and the difference between L1 and L2 exceeds ± 7 mm, that is, −7 mm ≦ (R2−R1) ≦ 7 mm and −7 mm ≦ (L2−L1) ≦ 7 mm In this case, the verticality is assumed to be poor. As described above, since the measurement is performed at the two left and right positions, the detection accuracy can be improved and the distortion of the anode 2 can be detected. Note that this calculation may be performed by the control device 40 instead of the verticality detection means 60. In this case, the notification to the exclusion unit 70 is performed by the control device 40 instead of the verticality detection unit 60.

  Here, the operation of the perpendicularity measuring apparatus 30 will be described with reference to the flowchart of FIG. First, the flatness of the anode 2 formed by casting crude copper is corrected in advance so as to be determined as a good vertical anode 2a. The anode 2 is conveyed in the horizontal direction in a suspended state with the ears 2e hooked by the conveyor 3 (S301). The anode 2 that has been transported to the vicinity of the end of the transport conveyor 3 is now transported upward in the vertical direction by the elevating conveyor 4 (step S302). Then, four distance measuring sensors 51 provided in the distance measuring means 50 of the verticality measuring device 30 from the position facing the main body 2c of the anode 2 when the anode 2 conveyed in the vertical direction comes to a predetermined position. Thus, the distance to the surface of the anode 2 is measured at four points (R1, R2, L1, and L2) (S303). As described above, the measurement by the distance measuring sensor 51 is performed at two points on the left and right sides of the main body portion 2c of the anode 2 and a total of four points.

  The measurement data of the distance to the surface of the anode 2 measured by the four distance measuring sensors 51 is sent to the verticality detecting means 60, which is based on the difference between the upper and lower measured distances at the two left and right positions. Verticality is determined (S304). Then, based on the verticality determination result of the verticality detection means 60, the exclusion means 70 transfers the anode 2 a having poor verticality (vertical failure) to the reject conveyor 71 and has good verticality (good verticality). The anode 2b that is determined to be transferred to the transfer conveyor 72 is selected (S202).

  The vertically defective anode 2a transferred to the reject conveyor 71 is carried into the ear vertical press 10 shown in FIGS. 1 and 2 directly or by another conveyor or manually, and is engaged with the guide member 17 for positioning. (S203), vertical correction is performed. The control device 40 drives the pulse motor 21 of the drive mechanism 20 based on the vertical data for each of the vertically defective anodes 2a stored in the memory or the like (S204). When the pulse motor 21 is driven, the lever driving plate 22 is raised or lowered as shown in FIG. 1, and the lever arm 16 is moved as shown by a solid line or a broken line in FIG. The ear receiving portion 15 provided on the receiving mold 14 rotates, and the angle of the ear receiving portion 15 is adjusted so that the verticality of the anode 2a is corrected. Thereafter, the control device 40 lowers the cylinder 12 of the ear vertical press 10 and, accordingly, lowers the receiving die 13 so as to press the upper surface of the ear 2e of the anode 2a, thereby improving the verticality of the ear 2e. Correct (S205). When the correction of verticality for one anode 2a is completed (S206), the correction of verticality for the next anode 2a is performed (S207: Yes). When the next anode 2a to be corrected disappears (S207: No), the processing by the ear vertical press 10 ends.

  In the above embodiment, the exclusion means 70, the reject conveyor 71 and the transfer conveyor 72 shown in FIG. 5 are not provided, and the anode 2a and the anode 2b are manually sorted by the operator based on the measurement result of the verticality measuring device 30. May be.

[Effect of the embodiment]
According to the anode verticality correction apparatus according to the present embodiment, the verticality measuring apparatus 30 measures the verticality of the anodes, acquires the verticality data for each of them, and discriminates the anode 2a having a vertical defect. In contrast, since the vertical correction is performed by the ear vertical press 10, the vertical correction of the anode 2 can be automated, and the time required for the correction can be shortened.
Further, by supporting the shaft 18 by the bearings 19A and 19B having the gap 190, there is an effect that the ear receiving portion 15 can be rotated without any trouble even when the concave surface 14a of the receiving die 14 is worn.

  As described above, the preferred embodiment of the present invention has been described in detail. However, the present invention is not limited to the specific embodiment, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

DESCRIPTION OF SYMBOLS 1 Vertical correction apparatus 2 Anode 2a Poor vertical anode 2b Vertical good anode 2c Main body part 2e Ear part 3 Conveyor 4 Lifting conveyor 10 Ear vertical press 11 Main body 12 Cylinder 13 Receptacle mold 14 Receptacle mold 14a Concave surface 15 Ear Receiving portion 15a Rotation center 16 Lever arm 17 Guide member 18 Shaft 19A Bearing 19B Bearing 20 Drive mechanism 21 Pulse motor 22 Lever drive plate 30 Vertical measuring device 31 Frame 32 Horizontal movement mechanism 33 Vertical movement mechanism 33a Support body 33b Air cylinder 40 Control device 50 Distance measuring means 51 Distance measuring sensor 52 Measuring plate 60 Verticalness detecting means 70 Eliminating means 71 Reject conveyor 72 Transport conveyor 190 Gap

Claims (3)

In the method of correcting the verticality of the anode for correcting the verticality of the anode used in the electrolytic purification of metal,
A verticality measuring process for measuring data relating to the verticality of the anode;
By having an ear receiving part for placing the ear part of the anode having a planar ear receiving surface and a cylindrical movable part, and pressing the ear part of the anode placed on the ear receiving part Placing the ear portion of the anode on the ear receiving portion of the press for correcting the angle of the back surface of the ear portion that is suspended and supported by the electrolytic cell;
A lever arm connected so as to be rotatable about the central axis of the cylindrical movable portion of the ear receiving portion so that the verticality of the anode is correctly corrected based on the data measured in the verticality measuring step. Adjusting the angle of the ear receiving portion by a drive mechanism that drives the motor by a motor ;
A method for correcting the verticality of an anode, comprising: In an anode verticality correction device that corrects the verticality of the anode used in the electrolytic refining of metals,
A verticality measuring device for measuring data relating to the verticality of the anode;
By having a flat ear receiving surface and a cylindrical movable part , having an ear receiving part for placing the anode ear part, and pressing the ear part of the anode placed on the ear receiving part A pressing machine that corrects the angle of the back surface of the ear portion that is suspended and supported by the electrolytic cell;
A drive mechanism including a motor that drives a lever arm that is rotatably connected around a central axis of a cylindrical movable portion of the ear receiving portion;
An inclination angle of the ear receiving surface by rotating a cylindrical movable part of the ear receiving part so that the verticality is corrected correctly based on the data measured by the vertical measuring device. A device for correcting the verticality of an anode, wherein In the vertical correction apparatus of the anode according to claim 2 ,
The anode vertical straightening device, wherein the motor is a pulse motor.

Images