JPH0768630B2 - Pole plate maintenance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention continuously removes deposits from an electrode plate used in electrolytic smelting and the like, particularly an anode plate, and after cleaning, continuously performs a series of steps for correcting deformation. Related to the electrode plate maintenance device.

In the electrolysis process of zinc smelting, electrolysis is usually performed using a silver-containing lead plate as an anode and an aluminum plate as a cathode. With the progress of electrolysis, the surface of the anode plate
Solid matter (crust) mainly composed of manganese dioxide, in which manganese ions in the electrolyte solution are oxidized, gradually adheres and the cell voltage gradually rises. Also, due to the growth of the crust, adjacent different electrode plates come into contact with each other. There is a problem such as an electrical short circuit. For this reason, the anode plate is regularly pulled up from the electrolytic cell to remove the crust. Further, since the anode plate is a silver-containing lead plate as described above, it is easily deformed when the electrode plate is put in and taken out of the electrolytic cell or when the crust is removed, and this deformation may cause an electrical short circuit between the electrode plates. Therefore, it is necessary to correct such deformation of the electrode plate as much as possible.

[Prior Art and Problems] Conventionally, as a method for removing the crust, a method of injecting high-pressure water to an anode plate, a method of scraping with a scraper, a method of knocking off with a mallet, or a method of brushing has been performed. However, it is necessary to have an insoluble lead oxide coating on the surface of the lead anode plate, and the crust must be removed without damaging the lead oxide coating during maintenance of the anode. Therefore, in the conventional method, the work efficiency is poor and the removing effect is insufficient, the lead oxide coating is also easily damaged, and the deformation of the electrode plate cannot be corrected. There was also a problem that the burden on the workers was great.

Therefore, in order to improve the work efficiency, an apparatus has been developed in which the crust removal work and the anode plate correction work are performed mechanically continuously (Japanese Patent Laid-Open No. 58-153794). The apparatus comprises a lifting mechanism such as a hoist for transferring the electrode plate, a clamp mechanism for pinching the electrode plate, and a hammering mechanism for striking the electrode plate, and the clamp mechanism and the hammering mechanism move up and down. It is installed in. The pole plate is inserted into these mechanisms from above by a hoist or the like, the crust is peeled off by hammering, then clamped, and the clamped one is pulled out to correct it. Although the above-mentioned device has an advantage of being able to mechanically continuously remove the crust and straighten the electrode plate, it is not suitable for automation including a transfer means, and the effect of removing the crust is insufficient. There are many problems when inserting into the mechanism. That is, in the apparatus, the electrode plate is hung by a hoist or the like, inserted into the apparatus from above, and the clamped one is pulled out to correct it. For this reason, the suspended electrode plate must be inserted into the device from the lower end where it is easy to swing, and when the electrode plate is lowered and inserted into the device, the lower end of the electrode plate is It often happens that it cannot be inserted because it collides with the insertion port. Further, the hammering effect is insufficient and the crust removing effect is insufficient. Furthermore, since the clamped electrode plate is straightened by pulling it out, the verticality of the electrodeposition surface with respect to the head bar cannot be maintained, and when the electrode plate is inserted into the electrolytic cell, it tilts and the other electrode There is a problem such as a risk of causing an electrical short circuit by coming into contact with the plate.

[Means for Solving Problems] In the electrode plate servicing apparatus of the present invention, the electrode plate head bar is supported from both ends by a flow chain or the like instead of the electrode plate transfer means using a conventional hoist and the transfer path thereof is provided. Is arranged so that each device goes up and down, and the electrode plate is allowed to enter each device from the head bar portion so that the insertion can be smoothly performed. Further, as a means for removing crust and the like, first, a peeling device having a hammering mechanism was provided, most of the crust and the like were removed by the peeling device, and a cleaning device was provided to completely remove the crust and the like.

In a preferred embodiment of the present invention, the impact body of the hammering device is rotatably and slightly slidable in the rotation direction, so that the impact effect is enhanced. In addition, a high-pressure liquid cleaning device was attached to further enhance the effect of removing crust and the like. Further, in order to correct the deformation of the electrode plate, a flat press device was used instead of the conventional clamp mechanism so that the perpendicularity of the electrodeposited surface with respect to the head bar can be corrected at the same time.

[Structure of the Invention] According to the present invention;
It is an electrode plate maintenance device in which a cleaning device for cleaning the electrode plate, a pressing device for pressing the electrode plate to correct its deformation, and a transfer path for transferring the electrode plate through these devices are integrally formed. (B) The peeling device is provided with a hammering mechanism for striking the electrode plate to peel off the crust on the surface of the electrode plate, and an elevating means for raising the electrode plate and inserting it into the hammering mechanism. (B) The cleaning device is provided with an injection nozzle for injecting a high-pressure cleaning liquid toward the surface of the electrode plate,
(C) The above-mentioned pressing device is provided with flat pressing means for integrally pressing the head bar of the electrode plate and the electrode surface,
(D) A flow chain for suspending and transporting an electrode plate is provided in the transfer path, and the flow chain is arranged to pass vertically through a cleaning device and a pressing device via the peeling device. The flow chain is equipped with a rotatable hanger for holding the electrode plate vertically, and the electrode plate is hung from the hanger and is moved from the head bar side. Provided is an electrode plate servicing device, which is carried into each device and sequentially conveyed through the devices.

The electrode plate maintenance device of the present invention includes a peeling device for peeling off the deposits on the electrode plate, a cleaning device for cleaning the electrode plate, a pressing device for pressing the electrode plate to correct its deformation, and a device for passing through these devices. And a transfer path for transferring the electrode plate.

The peeling device includes a hammering mechanism including a rotating shaft and a striking ring fitted to the rotating shaft, and an elevating mechanism for loading the electrode plate supported by the hanging means into the hammering mechanism portion. There is. The striking wheel of the hammering mechanism is composed of an arm protruding in the radial direction of the rotary shaft and a striking body axially attached to the tip of the arm. The number of striking wheels is appropriately determined according to the size of the electrode plate. It is preferable that the striking body is rotatably attached to the striking ring so as to give an impact to the electrode surface of the electrode plate suspended and supported, and is slidable slightly in the radial direction of the striking ring. . Alternatively, the striking body may be provided near the center of the striking ring by a spring or the like, and may be formed so as to collide with the surface of the electrode plate against the elastic force by the rotation of the striking ring. The striking body collides with the surface of the electrode plate by the rotation of the striking wheel, gives a large impact force, and recedes slightly in the radial direction in response to the reaction force, so that the crust is not pressed against the electrode plate and the peeling effect is obtained. improves. As the hitting body, one made of metal or having a resin layer formed on the outer periphery thereof can be appropriately used. It should be noted that the hammering mechanism may be provided with a pair so that the electrode plates pass therethrough, and the electrode plates may be hit from both sides. The pair of striking wheels may be synchronously rotated by a timing belt or the like so that the striking bodies on both sides collide with the electrode plates at the same time. The means for transmitting the rotational force to the striking wheel is not limited to the timing belt, but may be a drive system such as a chain or a gear, but the timing belt is preferable in terms of absorption of impact. The rotation speed of the striking wheel may be constant or variable. It may be appropriately selected depending on the adhesion state of crust or the like. The elevating mechanism for loading the electrode plate into the hammering mechanism portion can be formed by disposing hydraulic cylinder mechanisms or the like that can move up and down on both sides of the transport path. An arm supporting the head bar of the electrode plate is provided at the tip of the cylinder. A guide for guiding the vertical movement of the arm may be provided on the frame of the lifting mechanism. The lifting mechanism is not limited to the hydraulic cylinder, but may be a chain drive or the like.

The cleaning device has a plurality of injection nozzles for injecting a high-pressure cleaning liquid toward the surface of the electrode plate. Similar to the hammering device, a pair of the injection nozzles may be provided so that the electrode plates pass through them, and the electrode plates may be cleaned from both sides thereof. Further, preferably, a plurality of the injection nozzles are provided along the width direction of the electrode plate so as to uniformly wash the electrode plate. Most of the crust adhering to the surface of the electrode plate is peeled off by the hammering device, and the lead oxide film on the surface of the anode plate is almost completely removed by the cleaning device without damaging it. It is also possible to use a gas-liquid mixture as the cleaning liquid. Guides may be provided on both sides of the transport path so that the electrode plate does not swing when the high-pressure cleaning liquid is ejected.

The pressing device has a flat pressing means for pressing the head bar of the electrode plate and the electrode surface together. A step corresponding to the difference in plate thickness between the head bar and the electrode surface is formed on the pressing surface of the device, the head bar and the electrode surface are pressed together, and the perpendicularity of the electrode surface with respect to the head bar is also at the same time. Be corrected. As described above, since the crust and the like are almost completely removed from the surface of the electrode plate before the electrode plate is straightened, the flatness and perpendicularity of the electrode plate can be accurately maintained by the pressing. still,
It is more effective to form a pinching pattern (a concave and convex surface having a predetermined shape) on the press surface.

The transfer path has a flow chain formed by a chain belt or the like that suspends an electrode plate and passes through each of the above devices, and the flow chain has both sides thereof so as to support both ends of the head bar of the electrode plate. Each of the flow chains is further equipped with a hanger that engages with the end of the electrode plate on the head bar side, and the hanger is rotatably attached to the flow chain so that the electrode plate is always held vertically. The electrode plate is transferred vertically via the hanger to the flow chain. Further, the flow chain is arranged through the above and below each device so as to pass the electrode plate from the lower side to the upper side of each device, and the electrode plate is a part of the head bar supported by the transport hanger. Since it enters each device from the above, the entry end is smoothly introduced into each device without swinging.

[Effect of the Invention] The electrode plate maintenance device of the present invention is capable of mechanically and continuously performing a series of steps of peeling adhered substances from the electrode plate, cleaning and pressing, and has good work efficiency. Furthermore, it is suitable for automating the above series of processing steps, and the automation can greatly improve the work efficiency.

Further, instead of the conventional means for transferring the electrode plate by a hoist or the like, the head bar of the electrode plate is supported from both ends by a flow chain or the like, and the electrode plate enters each device from the head bar side, so that the insertion is smooth. It is also reliable and has very few troubles during transfer. Further, since the cleaning device is provided immediately after the stripping device, the stripping effect of the crust and the like is good, and the crust can be removed by the two-step treatment without damaging the lead oxide coating on the surface of the anode plate. Furthermore, in a preferred embodiment of the present invention, the impact body of the hammering device is rotatably and slightly slidable in the rotational direction, so that the impact effect is further enhanced. Furthermore, in order to correct the deformation of the electrode plate, a flat pressing device is used instead of the conventional clamp mechanism, and the electrode surface of the electrode plate and the head bar are integrally pressed, so that the perpendicularity of the electrode surface to the head bar is reduced. Also has the advantage that it can be corrected at the same time.

[Embodiment] FIGS. 1 to 7 show an embodiment of the present invention.

The electrode plate maintenance device of the present embodiment is, as shown in the figure, a peeling device 10 for striking the electrode plate to remove adhered substances, a cleaning device 20 for cleaning the electrode plate, and pressing the electrode plate to correct its deformation. The pressing device 30 and the transfer path 40 for transferring the electrode plate through these devices are provided, and the peeling device 10 and the cleaning device 20 are provided.
The press devices 30 are mounted on the frame 50 in a line and are integrally formed.

As shown in FIGS. 3 and 4, the peeling device 10 has a hammering mechanism including a rotary shaft 11 and a striking ring 12 fitted to the rotary shaft 11, and a drive motor 17 for rotating these hammering mechanisms. ,
The striking wheel 12 is composed of an arm 13 protruding from the rotating shaft 11 and a striking body 14 axially attached to the tip of the arm 13.
The shaft end 14a of the striking body 14 is loosely fitted in a long hole 15 formed at the tip of the ohm 13, so that the striking body 14 is supported so as to be slightly slidable and rotatable in the radial direction of the rotary shaft 11. ing. The number of impacting bodies 14 is appropriately determined, and in this embodiment, the impacting bodies 14 are provided at the tips of the two arms 13 facing each other. Further, a resin layer 16 is laminated on the outer peripheral surface of the hitting body 14. MC nylon or the like may be used as the material of the resin layer 16. Providing the resin layer 16 prevents the electrode plate from being damaged when hit. The rotating shaft 11 is arranged in the width direction of the electrode plate, and the striking wheels 12 are provided in plural along the width direction. The hammering mechanism is provided in a pair so that the electrode plates pass through so that the electrode plates are hit from both sides. The striking wheel 12, the rotating shaft 11, and the drive motor 17
Are mounted on the frame 50, and an elevating mechanism 19 for pushing up the electrode plate is provided below the striking wheel 12. The lifting mechanism 19 includes a pair of support arms 19a for supporting both ends of a head bar of a polar plate, and a cylinder for vertically moving the support arms 19a.
19b and guides 18a, 18b for vertically guiding the support arm 19a.
It is composed by.

The electrode plate is pushed up with both ends of its head bar being supported by the support arms 19a and inserted into the hammering mechanism, and is held at a height necessary for hammering the entire electrode plate. With the insertion of the electrode plate, the striking body 14 is sequentially and continuously collided with the surface of the electrode plate by the rotation of the striking wheel 12. The hitting body 14
When the striking wheel 12 rotates, it collides with the electrode plate surface with a centrifugal force, gives a large impact force and continuously collides with the electrode plate surface, so that the crust having a large adhesive force is also peeled off. Further, the impacting body 14 receives the reaction force at the time of collision, and slightly retracts along the elongated hole 15 in the radial direction, that is, in the direction opposite to the impacting direction. Therefore, the peeled crust is not pressed against the electrode plate by the hitting body 14, and the peeling effect is good.

Next, the cleaning device 20 is shown in FIGS. 5 (a), (b), (c).
As shown in FIG. 3, it is composed of guide plates 21 and 22 for guiding the progress of the electrode plate and a plurality of jet nozzles 23 for jetting high-pressure washing water. The guide plates 21 and 22 are erected so as to face each other so that the electrode plates pass between them, and a plurality of injection nozzles 23 are provided along the width direction of the electrode plates. When the electrode plate is moved upward between the guide plates 21 and 22, the nozzle port 23a of the injection nozzle 23 has a pole so that the cleaning water is jetted facing the transfer direction of the electrode plate. It is installed with a downward slope toward the board. The number of the injection nozzles is appropriately selected depending on the lateral width of the electrode plate and the degree of hammering. In this embodiment, the guide plates 21 and 22 are arranged in parallel in two sets each, and the left side of the drawing is a cleaning device,
The right side is a guide plate for guiding the raised electrode plate downward. When the electrode plate enters between the guide plates 21 and 22 of the cleaning device from below, high-pressure cleaning water is sprayed downward from the spray nozzle 23 toward the electrode plate surface, and the electrode plate guide plate 21,
The crust adhering to the surface of the electrode plate is washed away while passing between 22. When the electrode plate passes the cleaning unit, the injection nozzle 23
The injection of high pressure pre-purified water from is stopped. After passing through the cleaning device, the electrode plate is guided down by the guide plates 21 and 22 provided on the side of the cleaning device and lowered, and subsequently sent to the pressing device 30.

As shown in FIGS. 6 (a) and 6 (b), the pressing device 30 is provided between a pair of frame bodies 31a and 31b erected on the frame 50 and the frame bodies 31a and 31b. It is formed by a movable flat press block 32 and a hydraulic cylinder 33 that moves the press block 32. The frame bodies 31a and 31b are integrally connected by a guide bar 34. The press block 32 is connected and supported to the rod tip of the hydraulic cylinder 33, and guide rollers 32a and 32b are provided on both sides of the block.
Is projected. The guide rollers 32a, 32b are engaged with the guide bar 34, and the press block 32 is reciprocated along the guide bar 34 via the guide rollers 32a, 32b. Further, the outer surface 35a of the press block 32 and the inner surface 35b of the frame body 31b facing the outer surface 35a are the head bar 61 of the electrode plate and the electrode surface 62.
6a and 6b are formed on the pressing surfaces 35a and 35b, which are flat pressing surfaces 35a and 35b for integrally pressing and.
As shown in FIG. 5, steps 36a and 36b corresponding to the difference in plate thickness between the head bar 61 of the electrode plate and the electrode surface 62 are formed. The flow chains 41 and 42 for suspending and supporting the electrode plates are the frame bodies 31a and 31b.
And inside the guide bar 34, the chain
The electrode plates hung on 41 and 42 are the press block 32 and the frame 31.
When it is carried in from the lower side between b and reaches a predetermined position,
The progress of the electrode plate is temporarily stopped, the press block 32 is pressed by the frame body 31b facing each other, and the head bar of the electrode plate and the electrode surface interposed between the two blocks are pressed together to correct the deformation of the electrode plate. To do.

The transfer path 40 is formed by a pair of flow chains 41, 42 arranged at intervals to support both ends of the head bar of the electrode plate and a drive motor 45 for driving the chains 41, 42. The chains 41 and 42 are arranged via the peeling device 10, the cleaning device 20, and the pressing device 30 in this order as shown by the alternate long and short dash line in FIG. It goes through the lower side, enters from the lower side of the cleaning device and the press device, and passes through the device up and down to proceed. The flow chains 41, 42 include a plurality of hangers 43 with which the head bars of the polar plates engage. As shown in FIG. 7, the hanger 43 has an L-shape, and an upper end 43a thereof is fitted to a protrusion 44 projecting inward of the flow chains 41, 42 so that the hanger 43 is rotatable about its axis. It is supported. The end portion 61a of the head bar is engaged with and supported by the tip end 43b of the hanger 43. As shown in FIG. 2, a plurality of electrode plates 60 are provided one by one on both ends of the head bar through the hangers 43 to form a flow chain.
It is supported by 41 and 42 and is transferred in a state of being suspended vertically, and is lifted up to a hammering mechanism by an elevating mechanism in a peeling device, and is suspended in the chains 41 and 42 in a cleaning device and a press device. Then, each device is loaded from the lower side, and both are inserted into the processing portion from the head bar side. Also, as shown by the chain line in the figure, the flow chain 4
1 and 42 are the peeling device 10, the cleaning device 20 and the pressing device 3
After passing through 0, it is driven through the path below the frame 50 to the peeling device 10 again.

In the above structure, the electrode plate is carried into the peeling device by the flow chain, pushed up toward the striking wheel 12 by the elevating mechanism 19, lowered after the hammering is finished, and again supported by the flow chain toward the cleaning device. Will be transferred. The electrode plate rises between the guide plates of the cleaning device, and during this time, high-pressure cleaning water is sprayed to wash away deposits such as crust from the surface of the electrode plate. After the cleaning, the electrode plate is continuously sent to a pressing device, the head bar and the electrode surface are integrally pressed, and the electrode plate is transferred to a carry-out conveyor. The series of processing steps can be automated by detecting the transfer position of the electrode plate and providing a control circuit for controlling the operation of each device in conjunction with the transfer position. The following table shows a series of automated movements.

[Brief description of drawings]

1 to 7 relate to an embodiment of the present invention, FIG. 1 is a schematic front view thereof, FIG. 2 is a schematic plan view thereof, FIG. 3 is a partial schematic diagram of a hammering device, and FIG. Schematic view of the batting wheel,
5 (a), (b), and (c) are schematic views of the cleaning device. FIG. 5 (a) is a partial side view, FIG. 5 (b) is a plan view, and FIG. 5 (c) is a front view. Is. 6 (a) and 6 (b) are a plan view and a front view of the press machine, FIG. 6 (c) is a partial schematic sectional view thereof, and FIG. 7 is a sectional view of a hanger portion of the flow chain. In the drawing, 10 ... Hammering device, 20 ... Cleaning device, 30
…… Pressing device, 40 …… Transfer path, 50 …… Frame.

Claims (3)

[Claims] 1. A peeling device for peeling off deposits on an electrode plate, a cleaning device for cleaning the electrode plate, a pressing device for pressing the electrode plate to correct its deformation, and an electrode plate via each of these devices. An electrode plate maintenance device integrally formed with a transfer path for transferring: (a) the peeling device includes a hammering mechanism for striking the electrode plate to peel off the crust on the surface of the electrode plate; Elevating means for raising and inserting into the hammering mechanism is provided, and (b) the cleaning device is provided with an injection nozzle for injecting a high-pressure cleaning liquid toward the electrode plate surface,
(C) The above-mentioned pressing device is provided with flat pressing means for integrally pressing the head bar of the electrode plate and the electrode surface,
(D) A flow chain for suspending and transporting an electrode plate is provided in the transfer path, and the flow chain is arranged to pass vertically through a cleaning device and a pressing device via the peeling device. The flow chain is equipped with a rotatable hanger for holding the electrode plate vertically, and the electrode plate is hung from the hanger and is moved from the head bar side. An electrode plate maintenance device, which is carried into each device and sequentially conveyed through the above devices. 2. The peeling device comprises a hammering mechanism including a rotary shaft and a striking ring fitted to the rotary shaft, and an electrode plate suspended and supported by the flow chain, which is inserted into the hammering mechanism portion. The striking ring is formed by an arm projecting from the rotating shaft and a striking body axially attached to the tip of the arm, and the striking body is the surface of a pole plate suspended and supported. The electrode plate servicing device according to claim 1, which is rotatably attached to the striking wheel so as to give an impact to the striking wheel and is slightly slidable in the radial direction of the striking wheel. 3. The cleaning device according to claim 1, wherein a plurality of injection nozzles are arranged facing each other in the transfer direction of the electrode plate.
Item plate maintenance device.