JP2009082869A - Cleaning device of metal plate refined by electrorefining - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently remove solid matters firmly adhering to the hanging means of a cathode in a cleaning step by electrorefining of copper, nickel, or the like. <P>SOLUTION: The cleaning device is for carrying out cleaning of an electro-refined metal plate (1) by jetting a cleaning liquid toward the metal plate (1) from a large number of cleaning nozzles (3) arranged in a cleaning position in a transportation step of the metal plate (1) and a movable cleaning nozzle (9) for removing deposit (7) adhering to hanging means (5) made of a metal is arranged above the space wherein the hanging means 5 passes and the movable cleaning nozzle (9) is installed in a movable manner in relation to a main pipe (4) and the jetting angle of the movable cleaning nozzle (9) to the hanging means (5) is changed by jetting pressure of the washing liquid itself and the washing liquid jetted from the movable cleaning nozzle (9) is continuously jetted to the transferring hanging means (5) to remove the deposit (7) remaining in the hanging means (5). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cleaning apparatus for cleaning an electrolytically purified metal plate with a cleaning nozzle.

  In general, in electrolytic refining of copper, nickel, etc., products are obtained by suspending metal anodes and cathodes for purification purposes alternately in an electrolytic cell by a crane and electrodepositing the target metal on the cathodes.

FIG. 1 is a schematic view of an electrolytically refined metal plate. As described above, the metal plate 1 is manufactured by suspending a plurality of anodes and cathodes 1a in parallel in an electrolytic cell and electrodepositing a target metal on the electrodeposition surface of the metal thin plate 1b of the cathode 1a by electrolytic purification. . The cathode 1a includes a metal thin plate 1b serving as an electrodeposition surface, a metal beam 6 that supports the metal thin plate 1b, a metal thin plate 1b, and a metal beam 6 made of the same type of metal as the metal thin plate 1b. It is comprised from the suspension hand 5 which connects.

  The metal plate 1 manufactured by electrolytic refining is cleaned by a crane in order to recover the process liquid (electrolyte) remaining on the surface after being pulled up from the electrolytic cell together with the cathode 1a and to prevent product contamination. And washed with a cleaning solution such as acid or water.

  The metal plate after washing is sent to the bundling process, collected into a predetermined number, shipped, or stored. For example, as described in Patent Document 1 (Japanese Utility Model Publication No. 53-8011), the washing process and bundling are performed. The process is often performed continuously as a series of processes. At this time, in order to improve the operation efficiency and to make it easier to bind the metal plates in the subsequent bundling step, the metal plates after electrolytic purification are aligned in the overlapping direction and inserted into the cleaning device of the cleaning step. It is common.

  FIG. 2 is a schematic diagram of a conventional metal plate cleaning apparatus, FIG. 2 (a) is a side view of the conventional metal plate cleaning apparatus, and FIG. 2 (b) is a conventional metal plate cleaning apparatus. FIG. 3 is a front view of the apparatus in the conveying direction 2 of the metal plate 1. After the electrolytic purification, the metal plate 1 is transported in the transport direction 2 together with the cathode 1a in a state of being aligned in the overlapping direction, and sequentially moves to a cleaning process by a cleaning device, a drying process (not shown), and a bundling process (not shown). The metal plate 1 inserted into the cleaning position of the cleaning device in the cleaning process is cleaned by being sprayed with a cleaning liquid by a large number of cleaning nozzles 3 arranged in the cleaning device in the course of conveyance. The cleaning nozzle 3 is supplied with a cleaning liquid from a main pipe 4, and the main pipe 4 is piped so as to surround the conveyance space of the metal plate 1. Next, the metal plate 1 is dried in a drying process (not shown) together with the cathode 1a, then proceeds in the transport direction 2, and is bundled and bundled into a predetermined number in a bundling process (not shown).

  By the way, as a problem of the conventional metal plate cleaning apparatus, it is known that a defect due to insufficient cleaning in the vicinity of the hanging hand 5 occurs. When this lack of cleaning occurs, the process liquid component remaining due to lack of cleaning adheres to the metal plate 1 as crystals when dried, contaminates the metal plate 1 as a product, leading to quality defects in the quality and appearance of the metal plate 1. . For this reason, it is important in the cleaning process to eliminate problems caused by insufficient cleaning.

  FIG. 3 shows the deposit 7 attached to the suspension 5 of the cathode 1a. In general, when electrolytic purification is performed with the configuration shown in FIG. 1, the upper part of the suspension 5 and the beam 6 are located on the surface of the process liquid in the electrolytic cell and do not directly contact the process liquid. Deposits such as process liquid do not adhere to the upper part of the suspension 5 and the beam 6. However, the process liquid may scatter to the upper part of the suspender 5 and the beam 6 due to liquid level fluctuations, inspection tank operations, etc., and the process liquid scattered and adhered to those parts is not always in contact with the process liquid. On the other hand, moisture easily evaporates, and the salts contained in the process liquid crystallize, adhere to the surface of the suspension 5 and accumulate over time.

  Since the solid substance fixed to this part is firmly fixed to the suspension 5, it is difficult to remove efficiently with the conventional cleaning apparatus for the metal plate 1, and the above-described insufficient cleaning has occurred. In particular, if the washing state is insufficient and the solid matter passes through the drying process while remaining on the surface of the hanger 5, the solid matter is dried and remains on the surface of the hanger 5.

In order to efficiently remove the process liquid and the solid matter adhering to the part of the hanger 5, a large number of cleaning nozzles 3 shown in FIG. 2 are arranged in the vicinity of the space through which the hanger 5 passes, What is necessary is just to inject a washing | cleaning liquid over as long as possible. However, the cleaning apparatus for the metal plate 1 is not only required to clean only the relevant part, but also to wash the entire metal plate 1 to remove the process liquid remaining on the metal plate 1, so that only a specific part is obtained. It is not preferable to centrally arrange the nozzles for cleaning because of the ability of the liquid feed pump to be used and the limitation of the amount of cleaning liquid.
Japanese Utility Model Publication No. 53-8011

  The present invention solves the occurrence of problems due to insufficient cleaning by removing the process liquid adhering to the suspension and the solid matter such as crystals that are dried and fixed to a specific part of the suspension. It is an object of the present invention to provide a cleaning apparatus that can efficiently remove the deposits attached to the upper part of the suspension of the cathode in the cleaning step of electrolytic purification such as copper and nickel.

  Under the above-mentioned problems, the invention of claim 1 is directed to a metal thin plate (1b) serving as an electrodeposition surface, a metal beam (6) for supporting the metal thin plate (1b), and the metal thin plate. Using a cathode (1a) made of the same kind of metal as (1b) and comprising a suspension (5) connecting the metal thin plate (1b) and a metal beam (6), the cathode (1a) The metal plate (1) is electrolytically purified by electrodeposition of the target metal onto the electrodeposition surface of the metal thin plate (1b), and a plurality of the metal plates (1) disposed at the cleaning position are transported in the process of transporting the electrolytically purified metal plate (1) Cleaning the electrolytically purified metal plate for cleaning the metal plate (1) by supplying the cleaning liquid from the main pipe (4) to the cleaning nozzle (3) and spraying the cleaning liquid toward the metal plate (1) In the apparatus, the metal hanger (5) was attached to the hanger (5) above the space through which the metal hanger (5) passes. A movable cleaning nozzle (9) for removing the kimono (7) is disposed, and the movable cleaning nozzle (9) is rotatably attached to the main pipe (4), and is movable by the injection pressure of the cleaning liquid itself. A lifting hand (9) that moves the cleaning liquid sprayed from the movable cleaning nozzle (9) by rotating the cleaning nozzle (9) and changing the spray angle of the movable cleaning nozzle (9) relative to the lifting hand (5). By continuously injecting with respect to 5), the deposit (7) remaining on the suspension hand (5) is removed.

  According to the invention of claim 2, the movable cleaning nozzle (9) is connected to the main pipe (4) at the connecting portion between the movable pipe (10) and the main pipe (4) for supporting the movable cleaning nozzle (9). The movable joint (11) is rotatably attached.

  According to the invention of claim 3, the movable cleaning nozzle (9) is connected to the main piping at a portion other than the connecting portion between the movable piping (10) and the main piping (4) for supporting the movable cleaning nozzle (9). It is attached so as to be rotatable by a movable joint (11) with respect to (4).

  According to the invention of claim 1, since the spray angle of the movable washing nozzle (9) with respect to the hanging hand (5) is changed by following the hanging hand of the moving metal plate (1), the movable washing nozzle (9 ) Can be continuously sprayed for a long time on the suspension hand (5) that moves the cleaning liquid sprayed from the head. For this reason, it is possible to efficiently remove the deposit (7) adhering to the suspension (5), that is, solids such as crystals adhering to the specific part of the process liquid and the suspension, and suppressing the occurrence of problems due to insufficient cleaning. can do. In addition, since the spraying pressure of the cleaning liquid itself is used to change the spray angle of the movable cleaning nozzle (9) following the suspender (5) of the moving metal plate (1), the movable cleaning nozzle (9) is movable. An actuator or the like for rotating the nozzle (9) is not required, and the spray angle of the movable washing nozzle (9) can be changed by following the suspension hand (5) with a simple mechanism.

  According to the invention of claim 2, the movable pipe (10) supporting the movable washing nozzle (9) is rotated by the movable joint (11) at the connecting portion between the movable pipe (10) and the main pipe (4). By mounting as possible and providing the joint (11) with both a connecting function and a movable function, it is possible to save space and increase the degree of freedom in equipment design.

  According to the invention of claim 3, the movable cleaning nozzle (9) is connected to the main pipe (4) at a movable joint (11) at a portion other than the connecting portion between the movable pipe (10) and the main pipe (4). Therefore, the structure of the machine can be simplified by separating the connecting part of the main pipe (4) and the movable pipe (10) and the movable part of the joint (11).

  The electrolytically purified metal plate cleaning apparatus of the present invention is similar to the conventional cleaning apparatus of FIG. 1 in that the main pipe 4 is connected to a large number of cleaning nozzles 3 arranged at the cleaning position in the process of transporting the electrolytically purified metal plate 1. The metal plate 1 is cleaned by supplying the cleaning solution from above and spraying the cleaning solution toward the metal plate 1. The cathode 1a is also the same as that of the conventional example, and is made of a metal thin plate 1b serving as an electrodeposition surface, a metal beam 6 supporting the metal thin plate 1b, and the same kind of metal as the metal thin plate 1b. It is comprised from the suspension hand 5 which connects the metal plate 1b and the metal beam 6. FIG.

  And the washing | cleaning apparatus of the electrolytically refined metal plate of this invention has the movable washing | cleaning nozzle 9 above the space where the metal suspension 5 passes in addition to many washing nozzles 3 as a characteristic structure. It has.

  FIG. 4 shows a part of the movable cleaning nozzle 9 in the metal plate cleaning apparatus of the present invention, and FIG. 4 (a) is a view seen from the side with respect to the conveying direction 2 of the metal plate 1. FIG. FIG. 4B is a view of the metal plate 1 as viewed from the rear in the conveyance direction 2. The movable cleaning nozzle 9 is disposed in the vicinity of the suspension 5 above the space through which the suspension 5 passes, and is attached to the main pipe 4 in a movable manner.

  Specifically, the movable cleaning nozzle 9 is rotatably attached by a movable joint 11 at a connecting portion between the movable pipe 10 that supports the movable cleaning nozzle 9 and the branch portion 8 of the main pipe 4. The type cleaning nozzle 9 swings in the transport direction of the metal plate 1 and in the opposite direction with the joint portion 11 as a fulcrum and the direction orthogonal to the transport direction 2 as a rotation axis. In this attached state, the movable cleaning nozzle 9 ejects the cleaning liquid from above the moving suspension 5 to the suspension 5.

  In this example, the movable cleaning nozzle 9 is rotatably attached by a movable joint 11 at a connecting portion between the movable pipe 10 and the branching portion 8 of the main pipe 4. The movable pipe 10 and the main pipe 4 (the main pipe 4 includes the branch portion 8) may be provided in a portion other than the connecting portion, for example, in the middle of the branch portion 8, or the branch portion 8 and the main pipe 4 may be provided. It can also be provided at a branch portion.

  The movable cleaning nozzle 9 is adjusted in position so that the cleaning liquid is sprayed to the range reaching the suspension 5 when the metal plate 1 passes below the movable cleaning nozzle 9. Has also been adjusted to a range suitable for it. Further, the tip of the movable cleaning nozzle 9 is formed so as to incline so that the water flow direction from the nozzle is deviated by about 10 degrees with respect to the vertical direction in a stationary state so that the cleaning liquid can be sprayed from the front almost to the suspension 5. Has been.

  In the present invention, similarly to the conventional metal plate cleaning apparatus of FIG. 2, the electrorefined metal plate 1 is moved in the conveying direction 2 in the state of being aligned in the overlapping direction, and loaded into the cleaning apparatus of the present invention. The cleaning liquid is sprayed and cleaned by a large number of fixed cleaning nozzles 3 (not shown) arranged in the cleaning apparatus and the movable cleaning nozzle 9 as the main part of the present invention in the transport process. The movable cleaning nozzle 9 is supplied with cleaning liquid from the main pipe 4. In this way, the cleaning liquid sprayed from the movable cleaning nozzle 9 reaches the suspension 5 from above the suspension 5 and removes the deposit 7 attached to the suspension 5. The deposits 7 are solids such as crystals that adhere to the suspension 5 due to scattering from the electrolytic cell, and crystals that adhere to the suspension by drying the process fluid that adheres to the suspension 5. Say. As solid matter, in addition to copper sulfate, bath solution components, glue, impurity elements, and the like are also conceivable.

  FIG. 5 is a schematic diagram of the swing function of the movable cleaning nozzle 9. As a means for swinging the movable cleaning nozzle 9, in this example, an example is shown in which the water flow of the cleaning liquid ejected from the movable cleaning nozzle 9 is used to swing by the spray pressure of the cleaning liquid itself. In FIG. 5, (a) to (g) are respectively the movable cleaning nozzle 9, the movable pipe 10, and the cleaning liquid water stream 12 when the metal plate 1 sequentially moves in the transport direction 2, the metal plate 1, Changes in the relative positional relationship between the lifting hand 5 and the beam 6 are shown in the order of (a) → (g).

  The metal plate 1 suspended by the beam 6 and the suspension hand 5 moves in the transport direction 2 as shown in FIG. In this state, the movable cleaning nozzle 9 and the movable pipe 10 are naturally suspended. When the metal plate 1 moves in the transport direction 2 from this state, as shown in FIGS. 5B and 5C, the 7 water flow 12 sprayed from the movable cleaning nozzle 9 hits the suspension hand 5, and the metal plate 1 The suspension 5 portion is cleaned.

  Further, when the metal plate 1 moves in the transport direction 2, as shown in FIGS. 5 (d) and 5 (e), as the incident angle of the water flow 12 ejected from the movable cleaning nozzle 9 with respect to the suspension 5 approaches perpendicularly. The movable washing nozzle 9 receives a force upward due to the reaction of the water flow 12 that has bounced off the bumper 5 and receives a rotational force about the joint 11 toward the conveyance direction 2 side. At this time, as the metal plate 1 moves, the movable cleaning nozzle 9 swings in the transport direction 2 side, so that the cleaning liquid 12 sprayed from the movable cleaning nozzle 9 continues to follow the moving suspension 5. Be injected.

  When the metal plate 1 further moves, as shown in FIG. 5 (f), the incident angle of the water flow with respect to the suspender 5 changes to an obtuse angle, so that the force received by the movable cleaning nozzle 9 is reduced, and the movable cleaning nozzle 9 It swings in the direction to return to the naturally suspended state by its own weight (FIG. 5 (g)).

  In order to remove the adhering matter 7 attached to the suspension 5 with the water flow 12, it is effective to hit the water flow 12 against the adhering matter 7 for a long time, and the incident angle of the water flow 12 with respect to the solid matter is closer to the vertical. It is valid. Since the movable cleaning nozzle 9 provided in the present invention rotates following the moving suspender 5, the water flow 12 is maintained for a longer time than when the movable cleaning nozzle 9 is fixed. Since it sprays with respect to the deposit | attachment 7 adhering to the hanger 5, the capability to remove the deposit | attachment 7 is very large. Even when the conveyance direction 2 of the metal plate 1 is opposite to that shown in FIG. 5, the movable cleaning nozzle 9 moves along with the conveyance of the metal plate 1 for the same reason as described above, and efficient cleaning is possible. It is. In the case where the movable cleaning nozzle 9 is swung using the water flow 12, it is preferable that the spraying pressure of the cleaning liquid is increased and the movable cleaning nozzle 9 is disposed close to the hanger 5. Further, in this figure, the cleaning liquid is sprayed with the tip of the movable cleaning nozzle 9 facing the front surface of the suspension 5 so that the deposit 7 adhering to the front surface of the suspension 5 in the transport direction 2 can be removed. However, in order to remove the adhering matter 7 adhering to the rear surface of the transport direction 2, it is only necessary to inject the cleaning liquid with the tip of the movable cleaning nozzle 9 directed toward the rear surface of the suspension 5; 1.

  For the purpose of verifying the effectiveness of the present invention, a metal plate movable cleaning nozzle facility was manufactured using the cleaning apparatus of the present invention and added to a conventional cleaning apparatus. FIG. 6 shows a schematic diagram of an embodiment of the movable cleaning nozzle facility. 6A is a plan view of the movable cleaning nozzle equipment and the plurality of metal plates 1 that are aligned and charged in the cleaning process, FIG. 5B is a side view of the movable cleaning nozzle equipment, and FIG. c) is a view of the movable cleaning nozzle equipment as viewed from the rear in the conveying direction 2 of the metal plate 1. The cleaning liquid is supplied to the movable cleaning nozzle 9 through the main pipe 4 and the movable pipe 10.

  As shown in FIG. 6, when cleaning one metal plate, two movable cleaning nozzles 9 are arranged as a set with respect to one suspender 5, and the movable cleaning nozzle 9 from a stationary state is moved from the movable cleaning nozzle 9. The movable cleaning nozzle 9 adjusts the mounting angle of the nozzle at the tip so that the water flow direction is deviated by about 10 degrees with respect to the vertical direction, and so that the respective water flows of the movable cleaning nozzles 9 as a pair face each other. Was provided. Thereby, both of the deposits 7 attached to the front surface and the rear surface of the hanger 5 can be removed.

  As a result of cleaning 52 electrolytic copper plates using the cleaning nozzle device manufactured this time and visually observing the removal state of the solids on the surface of the suspension 5, 51 out of 52 crystals containing the electrolyte as a component are Not observed. For the remaining one sheet, slight adhesion of electrolyte crystals was observed.

  For comparison, in the cleaning apparatus used above, with the movable cleaning nozzle 9 fixed, 52 electrolytic copper plates were cleaned as in the example of FIG. 5 and the cleaning state of the surface of the suspension 5 was visually observed. As a result, crystals having the electrolyte as a component were not observed on 40 of the 52 sheets. With respect to the remaining 12 sheets, adhesion of electrolyte crystals to the surface of the part was observed.

  In Table 1, when the cleaning is performed using the cleaning device of the present invention and when the cleaning is performed using the cleaning device having the movable cleaning nozzle 9 fixed for comparison, the adhesion state of the crystal after the cleaning is visually observed. Results are shown. From Table 1, the effectiveness of the cleaning apparatus of the present invention was confirmed.

  In this embodiment, the movable pipe 10 also functions as a movable member. However, instead of the movable pipe 10, a rigid arm is used, and the connection between the main pipe 4 and the movable cleaning nozzle 9 is a flexible hose or the like. May be used.

  FIG. 7 shows an example in which a swing bar 13 for swinging is attached to the movable cleaning nozzle 9 as means for swinging the movable cleaning nozzle 9. The swing bar 13 is fixed to the movable cleaning nozzle 9, and the tip of the swing bar 13 comes into contact with the moving beam 6 when the cleaning liquid sprayed from the movable cleaning nozzle 9 is sprayed almost perpendicularly to the suspension 5. It has become a shape. In FIG. 7, when the metal plate 1 moves in the transport direction 2, the beam 6 comes into contact with the swing bar 13, and when the metal plate 1 further moves in the transport direction 2, the movable cleaning nozzle 9 moves through the swing bar 13 to the beam 6. It is pushed by and swings. For this reason, the water flow of the cleaning liquid is continuously ejected to the suspension 5 almost vertically. Thereby, the effect similar to the effect described in Example 1 can be expected.

  Although the present invention was developed for the electrorefining of copper, it can also be used for cleaning other metals in the same manner.

It is a schematic diagram of the electrolytically refined metal plate. It is a schematic diagram of the conventional metal plate cleaning apparatus. It is an enlarged view near a hanger. It is a figure which shows the washing nozzle vicinity of the washing | cleaning apparatus of the metal plate of this invention. It is a conceptual diagram explaining operation | movement of a movable washing nozzle. It is a schematic diagram of the Example of movable washing nozzle equipment. It is a schematic diagram of the Example of movable washing nozzle equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal plate 1a Cathode 1b Metal thin plate 2 Conveyance direction 3 Cleaning nozzle 4 Main piping 5 Lifter 6 Beam 7 Adhering material 8 Branching part 9 Movable cleaning nozzle 10 Movable piping 11 Joint 12 Water flow 13 Swing bar

Claims (3)

A metal thin plate (1b) serving as an electrodeposition surface, a metal beam (6) that supports the metal thin plate (1b), and the metal thin plate (1b) made of the same kind of metal as the metal thin plate (1b) The target metal is applied to the electrodeposition surface of the thin metal plate (1b) of the cathode (1a) using a cathode (1a) composed of a suspension (5) that connects 1b) and a metal beam (6). The metal plate (1) is electrolytically purified by electrodeposition, and the cleaning liquid is supplied from the main pipe (4) to the plurality of cleaning nozzles (3) arranged at the cleaning position in the process of transporting the electrolytically purified metal plate (1). In an apparatus for cleaning an electrolytically purified metal plate that cleans the metal plate (1) by supplying and spraying a cleaning liquid toward the metal plate (1),
A movable cleaning nozzle (9) for removing the deposit (7) attached to the suspension (5) is disposed above the space through which the metal suspension (5) passes, and the movable cleaning is performed. A nozzle (9) is rotatably attached to the main pipe (4), the movable cleaning nozzle (9) is rotated by the spraying pressure of the cleaning liquid itself, and the movable cleaning nozzle ( The deposit remaining in the suspension (5) by continuously spraying the cleaning liquid sprayed from the movable cleaning nozzle (9) to the moving suspension (5) by changing the spray angle of 9) An apparatus for cleaning an electrolytically purified metal plate, wherein (7) is removed.   In a connecting portion between the movable pipe (10) and the main pipe (4) that support the movable washing nozzle (9), the movable washing nozzle (9) is connected to the main pipe (4) with a movable joint (11 The apparatus for cleaning an electrolytically purified metal plate according to claim 1, wherein the cleaning apparatus is rotatably attached to the metal plate.   The movable cleaning nozzle (9) is movable with respect to the main pipe (4) at a portion other than the connecting portion between the movable pipe (10) and the main pipe (4) supporting the movable cleaning nozzle (9). The apparatus for cleaning an electrolytically purified metal plate according to claim 1, wherein the apparatus is rotatably attached by a joint (11) of the type.

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