JPH04354892A - Device for charging and discharging electrode plate to and from cell - Google Patents

Abstract

PURPOSE:To easily charge and discharge plural anode plates and cathode plates to and from an electrolytic cell by separately driving the frames to which plural anode plates and cathode plates are rotatably fixed with the respective holding rods in the electrolytic refining tanks for metal. CONSTITUTION:The hangers 11a of plural consumable electrode plates 11 are held by a hook 13b at the lower end of an anode plate holding rod 13, and simultaneously, the hangers 15a of the plural cathode plates 15 are held by the hook 28a of a cathode plate holding rod 28. The plural anode plate holding rods 13 are fixed to a common frame and plural cathode plate holding rods 28 to a common frame, both frames are vertically moved by the respective driving devices, and plural anode plates 11 and cathode plates 15 are pulled up from the electrolytic cell together with the respective frames or inserted into the cell. Consequently, the anode plates and cathode plates are easily exchanged, and the short-circuit bar used when the electrode plate is detached is recovered at the same time.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for simultaneously loading and unloading a large number of anode plates and cathode plates into and out of an electrolytic cell in the electrolysis of metals such as lead, copper, and zinc.

0002

[Prior Art] For example, in the wet smelting method for lead, crude lead obtained by processing raw materials in a blast furnace is cast into an anode plate.
This anode plate is alternately loaded into an electrolytic cell with a cathode plate made of a thin plate of electrolytic lead, and electrolysis is performed in an electrolytic solution, and electrolytic lead is precipitated onto the cathode plate and recovered, thereby performing refining electrolysis.

That is, as shown in FIG. 7, in lead refining electrolysis, a pair of common conductive bars 44A, 44B and insulating bars 45A, 45B are laid on the long wall of a rectangular electrolytic tank 46, and electrodes The anode plate 11 and the cathode plate 15 are suspended in the electrolytic cell 46 so as to be alternately placed on the left and right common conductive bars 44A, 44B.

The anode plate 11 has ears 1 as suspension parts on both shoulders.
1a, a thin copper rod 15a is used as a suspension material for the cathode plate 15, and a thin copper rod 15a is used as a suspension material, and the one suspended by winding electrolytic lead as a seed plate is used, and the anode plate 11 is suspended at one end. The side lug 11a is placed on the common conductive bar 44A on the positive side, and the other end side lug 11a is placed on the insulating bar 45B. A direct current flows through the electrolytic solution 47 from the anode plate 11 side to the cathode plate 15 side via lead ions, thereby performing electrolysis.

Usually, a large number of such electrolytic cells 46 are electrically connected in series and operated in series. and,
After a certain period of electrolysis, the cathode plate is removed from each electrolytic cell, washed, and then melted and cast into a product ingot. At the same time, the exhausted anode plate is also removed from the bath, washed, remelted, and cast into an anode plate.

[0006] Such replacement of the anode plate 11 and the cathode plate 15 is carried out for each electrolytic cell by using, for example, an electrode plate loading/unloading device B as shown in FIG. This tank loading/unloading device B has a frame body 48 formed approximately in the shape of the electrolytic tank, and is suspended by a hanging device 49 of an overhead traveling crane, so that it can be moved up and down as well as arbitrarily in the front, back, left and right directions. .

On the frame 48, fixed bars 50A, 50B and movable bars 51A, 51B are laid at predetermined intervals on the left and right in the longitudinal direction, and the fixed bars 50A, 50B
and movable bars 51A, 51B are connected by a rectangular connecting plate 52. Moreover, racks 53A, 53B are connected to one end of the movable bars 51A, 51B, and the racks 53A, 53B are connected to one end of the movable bars 51A, 51B.
The pinions 54A and 54B that mesh with the rotating shaft 55
A gear device 57 that is rotated by manual operation of a handle 56 is disposed on the frame body 48 via the gear mechanism 57 .

Furthermore, the fixed bars 50A, 50B
, an electrode plate holding rod 58 whose upper end is fixed to the connecting plate 52 is rotatably held, and this electrode plate holding rod 58 has a hook-shaped hook portion 58a bent in a right angle direction at its lower end. There is.

Therefore, in this tank loading/unloading device B, by turning the handle 56 of the gear device 57, the pinion 5
4A, 54B and racks 53A, 53B, the movable bars 51A, 51B can be moved back and forth in the length direction. The holding rod 58 can be rotated symmetrically, and its hook portion 58a holds the end of the thin rod 15a for the cathode plate 15 shown, and holds the end of the thin rod 15a for the anode plate not shown. , can hold the ear portions and release the holding state from the holding state, and the electrode plate can be inserted into or removed from the electrolytic cell.

0010

[Problem to be Solved by the Invention] However, when the anode plate and cathode plate after a predetermined electrolysis period are taken out of the bath and replaced with a new anode plate or cathode plate, the anode plate and the cathode plate are placed in a standby place or stored, respectively. Because the locations are different, in the above-mentioned tank loading/unloading equipment, the anode plate and the cathode plate had to be removed, loaded, and transported separately, and this replacement work required a lot of time. .

Furthermore, when all the anode plates or cathode plates are removed from the tank, as can be seen from FIG. 7, the conduction between the common conductive bar 44A on the positive side and the common conductive bar 44B on the negative side is broken in the electrolytic cell. As a result, electrolytic operation of other electrolytic cells in the series that are electrically connected in series becomes impossible.

Therefore, when removing the electrode plate from the tank, it was necessary to install a shorting bar across the common conductive bars 44A and 44B on both sides of the electrolytic cell end.
The heavy shorting bar, which can provide sufficient conductivity just by placing it on B, has many problems when handled manually, and requires an independent mechanical device when handled mechanically. .

Therefore, conventionally, as shown in FIG. 7, a relatively light plate-shaped copper shorting bar 59 of, for example, about 20 kg is manually placed on the common conductive bars 44A, 44B.
A mantis vise 60 was applied to both ends of the electrode plates to bring them into close contact, and for this reason too, it took a lot of time to replace the electrode plates.

[0014] In view of the above-mentioned circumstances, the present invention makes it possible to transfer the anode plate and the cathode plate to different standby or storage locations without any trouble, to remove them from the electrolytic cell at the same time, and to remove them from the electrolytic cell at the same time. At the same time, it is possible to simultaneously install a shorting bar when these electrode plates are removed, or to recover the shorting bar when inserting an electrode plate. The purpose of the present invention is to provide a tank loading/unloading device that enables quick tank loading/unloading work.

[0015]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a structure in which a plurality of pairs of holding rods each having a hook portion at the lower end capable of holding a suspended portion of an electrode plate are rotatably attached to a frame body. , a tank loading/unloading device that enables loading and unloading of the electrode plate into and from the electrolytic tank by moving the frame up and down, wherein the plurality of pairs of holding rods are connected between the hook parts. In addition, the anode plate holding rod and the cathode plate holding rod are rotated by separate drives. In addition, a short-circuiting bar having sufficient weight to exhibit sufficient conductivity simply by placing both ends on a common conductive bar on both sides of the electrolytic cell is used to hold the plurality of pairs of electrode plates. A pair of short-circuit bar holding members each having a hook portion that can be held parallel to the bar is attached to the frame so as to be rotatable in conjunction with the rotation of the holding bar, and vertical movement of the frame causes the common The present invention proposes an electrode plate loading/unloading device that allows short-circuit bars to be transferred to and from a conductive bar.

[0016]

[Operation] When removing the electrode plate from the tank, first rotate the anode plate hook rod so that its lower end hook is parallel to the anode plate surface, and then rotate the cathode plate holding rod in the same way. After setting the hook portion parallel to the surface of the cathode plate, the frame is moved down at a predetermined position above the electrolytic cell, and the holding rod is inserted between the electrode plates.

After insertion, rotate the anode plate holding rod and the cathode plate holding rod by 90° so that the hook portions are perpendicular to the anode plate surface and the cathode plate surface, respectively, and then When the frame is moved upward, each holding rod holds the anode plate and the cathode plate with their hook portions, and can be removed from the electrolytic cell in a suspended state with a difference in level.

When removing only the anode plate or the cathode plate, only one of the electrode plates can be removed by rotating only the anode plate holding rod or the cathode plate holding rod.

When loading the electrode plates into the electrolytic cell, first, the anode plate and the cathode plate are placed in a state where the hook portions of the anode plate hook rod and the cathode plate hook rod are perpendicular to the electrode plate surface. , each suspension part is suspended at different heights.

[0020] Next, by lowering the frame at a predetermined position above the electrolytic cell, the anode plate and the cathode plate, which have different heights, are sequentially placed on a common conductive bar outside the electrolytic cell using their suspended parts. It can be suspended in an electrolytic cell.

After hanging, by rotating each holding rod so that each hook portion is parallel to the surface of the electrode plate, and moving the frame upward, only the holding rods can be removed above the electrolytic cell. .

When only the cathode plate or the anode plate is placed in the tank, the operation can be performed by rotating only the anode plate holding rod or the cathode plate holding rod.

As described above, by making it possible to suspend and hold the anode plate and the cathode plate with different heights, and by rotating the anode plate holding rod or the cathode plate holding rod as necessary, Since the electrode plate can be held or removed, the anode plate and the cathode plate can be removed from or inserted into the electrolytic cell simultaneously or separately. The plates and cathode plates can also be delivered in a coordinated manner at their respective standby or storage locations outside the electrolytic cell.

In the case where the holding member of the shorting bar is attached to the frame, the hook part of the holding member is placed in advance in a direction perpendicular to the direction in which the holding rods are arranged (direction of the electrode plate surface). By holding the short-circuiting bar at its both ends on the common conductive bars on both sides of the electrolytic cell as the frame moves downward, both common conductive bars will be electrically short-circuited, which will prevent the electrode plate from removing the tank. It disappears. After placing the shorting bar, the holding member can be rotated in conjunction with the rotation of the holding rod of the electrode plate so that its hook portion is parallel to the plate surface direction of the electrode plate. It can be detached upward with upward movement.

That is, a short-circuiting bar of sufficient weight that exhibits sufficient conductivity just by being placed thereon can be removed from between both common conductive bars in conjunction with the insertion/removal tank of the electrode plate, and can also be suspended.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A device for loading and unloading an electrode plate according to the present invention will be explained below with reference to drawings showing examples. 1 is a side view of the tank loading/unloading device of the present invention, FIG. 2 is a plan view of the tank loading/unloading device of FIG. 1, and FIG. 3 is a perspective view of a main part of the anode plate holding mechanism in the tank loading/unloading device of FIG. 4 is a perspective view of a main part of a cathode plate holding mechanism in the tank loading/unloading device of FIG. 1.

The electrode plate loading/unloading device A of the present invention shown in the figure is a tank loading/unloading device used in a lead refining and electrolytic factory, and is a tank loading/unloading device A that is used in a lead refining and electrolytic factory. Board 2
This device is configured so that nine sheets can be inserted and removed from the tank. As shown in FIGS. 1 and 2, this tank loading/unloading device A includes a frame 1 corresponding to the dimensions of the electrolytic tank, and an anode plate holding mechanism 2 and a cathode plate holding mechanism 3 on this frame 1. In addition, two hydraulically driven power cylinders 4 and 5 are provided so that these holding mechanisms 2 and 3 can be operated separately. Further, the upper center part has a hanging ring 6, and a rotor hook 7 suspended from an overhead traveling crane (not shown) is hung on this hanging ring 6, so that the entire tank loading/unloading device A can be moved up and down, back and forth, left and right. The worker who operates the holding mechanisms 2 and 3 can support the frame 1 by holding the holding frame 8 attached to the outer edge of the frame 1 and operate the operating device at hand. It's like this.

The anode plate holding mechanism 2 described above is constructed as shown in FIG. A pair of elongated movable bars 9A and 9B are attached to the frame 1 in the longitudinal direction of the frame 1 so as to be slidably movable on the frame 1 through a penetrating material 10 at both ends thereof. One end of 28 strip-shaped connecting plates 12 corresponding to the number of anode plates 11 is pivotally attached to the movable bars 9A, 9B at predetermined intervals, that is, the intervals between the anode plates 11 in the electrolytic cell. The upper end of an anode plate holding rod 13 is fixed to the outer end of the connecting plate 12 extending outward from the bars 9A, 9B.

Each anode plate holding rod 13 has a predetermined length,
A hook portion 13 is rotatably suspended from the frame 1 via a guide ring 14, has a protruding portion 13a projecting from the middle portion, and has a hook portion 13 at the lower end that can be engaged with the suspension portion 11a of the anode plate 11.
It forms b. The protrusion 13a has a predetermined protrusion height, and as described later, by bringing the protrusion 13a into contact with the surface of the anode plate 11, the distance between the anode plate 11 and the cathode plate 15 in the electrolytic cell is reduced. Furthermore, the lower surface of the protrusion 13a is formed as a sloped surface to facilitate the setting of the interval, that is, the positioning of the cathode plate 15.

[0030]The protrusion 13a and the hook 1
The protruding directions of the movable bars 3b are perpendicular to each other, and when the movable bars 9A and 9B move back and forth in the longitudinal direction of the frame 1, the anode plate holding rod 13 is rotated by the lever mechanism.
The protruding direction of the protruding portion 13a and the hook portion 13b is changed. That is, when the anode plate 11 is placed in the tank, the suspension of the anode plate 11 to the common conductive bar and the positioning of the cathode plate 15 can be performed in conjunction.

Further, in order to move the movable bars 9A, 9B back and forth and rotate the anode plate holding rod 13, mounting plates 16A, 16 are provided at one end side of both the left and right movable bars 9A, 9B, respectively.
B is fixed, and the two mounting plates 16A and 16B are connected by a connecting horizontal rod 17, and a mounting rod 20 connected to the piston rod 18 of the power cylinder 4 with a connecting pin 19 is connected to this connecting horizontal rod 17. By driving the power cylinder 4, the movable bars 9A and 9B can be moved back and forth via the connecting horizontal rod 17.

Furthermore, in the device of this embodiment, in consideration of power outages, etc., holding bodies 21 attached to both left and right ends of the connecting horizontal rod 17 are used as manual operating means for the movable bars 9A, 9B. , a link rod 23 is connected between a gate-shaped manual lever 22 whose base end is swingably attached to the frame 1, and the connecting horizontal rod 17 is connected by manually swinging the manual lever 22.
It is designed so that it can move back and forth. Note that when performing this manual operation, the connecting pin 19 at the tip of the piston rod 18
Remove the power cylinder 4.

Furthermore, the connecting plates 12A and 12B at one end of the movable bars 9A and 9B extend across the attachment position of the anode plate holding rod 13, and a link shaft 24 is attached to the outer end of the connecting plates 12A and 12B. Movable bars 9A, 9 are connected to the held short circuit bar holding member 25 and rotate the anode plate holding rod 13.
The shorting bar holding member 25 rotates in conjunction with the back and forth movement of B.
A hook portion 25a bent into a hook shape is formed at the lower end of the hook portion 25a.
The hook portion 25a should be perpendicular to or parallel to the movable bars 9A and 9B as shown by the imaginary line.
The shorting bar 26 can be held parallel to the A and 9B directions, and can be unloaded in the right angle direction. In order to prevent the held shorting bar 26 from slipping forward and falling from the hook portion 25a of the shorting bar holding member 25, a vertical slip stopper bar 27 is provided in close proximity to the shorting bar holding member 25.
is fixed to the frame 1.

The cathode plate holding mechanism 3 has a structure similar to that of the anode plate holding mechanism 2 described above, but is operated by separate power cylinders or manual levers. The hook portion 13b of the anode plate holding rod 13 which is suspended by the cathode plate holding mechanism 2 and the hook portion 28a of the cathode plate holding rod 28 which is suspended and held by the cathode plate holding mechanism 3 are configured to have a predetermined height difference. be.

As shown in FIG. 4, the left and right pair of long movable bars 29A, 29B in the cathode plate holding mechanism 3 are located at a high level position outside the movable bars 9A, 9B of the anode plate holding mechanism 2. Similarly, both ends thereof are slidably held in the frame 1 via a piercing material 30.

The rectangular connecting plates 31 that are pivotally connected to the movable bars 29A and 29B are 29 pieces in a row, the same number as the cathode plates 15, and a cathode plate holding rod is attached to the inner end of the strip-shaped connecting plates 31 that protrudes inward. The upper end of 28 is fixed.

This cathode plate holding rod 28 has a predetermined length,
It is rotatably suspended from the frame 1 via a guide ring 32, and has a hook portion 28a protruding from its lower end that can be engaged with the suspension portion 15a of the cathode plate 15. The hook portion 28a of this cathode plate holding rod 28 is connected to the hook portion 13 of the anode plate holding rod 13.
It is arranged to be at a predetermined higher level position than b. Further, as will be described later, the hook portion 28a is formed into an inverted triangular shape with an inclined bottom surface in order to prevent the hook portion from being caught on the adjacent anode plate 11 during insertion. When the movable bars 29A and 29B move back and forth in the longitudinal direction, the cathode plate holding rod 28 is rotated by its lever mechanism, and the protruding direction of the hook portion 28a changes, and the rod 28 is engaged with the suspension portion 15a of the cathode plate 15. death,
Alternatively, it is made so that it can be attached and detached.

Further, mounting plates 33A and 33B are fixed to the lower surface of one end of the movable bars 29A and 29B, respectively, and the left and right mounting plates 33A and 33B are connected by a connecting horizontal rod 34. , a mounting rod 37 connected by a connecting pin 36 is attached to the piston rod 35 of the power cylinder 5, and the movable bars 29A, 29B are moved back and forth via the connecting horizontal rod 34 by driving the power cylinder 5, and the cathode plate holding rod 28 It is designed so that it can be rotated.

Furthermore, in the device of this embodiment, holding bodies 38 are attached to both left and right ends of the connecting horizontal rod 34,
A link rod 40 is connected between this holding body 38 and a gate-shaped manual lever 39 swingably attached to the frame 1, and in the event of a power outage, etc., the tip of the piston rod 35 can be connected. By removing the pin 36 and disconnecting the power cylinder 5, by manually operating the manual lever 39, the connecting horizontal rod 34 can be moved back and forth.
In other words, the movable bars 29A, 29B can be moved back and forth.

Furthermore, the connecting plates 31A and 31B at both ends of the movable bars 29A and 29B extend across the attachment position of the cathode plate holding rod 28, and a link shaft 41 is attached to the tip thereof, and the connecting plates 31A and 31B are held in the frame 1. The movable bar 2 is connected to the short-circuiting bar holding member 42 and rotates the cathode plate holding rod 28.
The shorting bar holding member 42 is linked to the forward and backward movement of 9A and 29B.
The hook portion 42 rotates and is bent into a hook shape at the lower end.
a is rotated so as to be perpendicular or parallel to the movable bars 29A, 29B. That is, as shown by the imaginary lines, the hook portion 42a can hold the shorting bar 26 in a direction parallel to the movable bars 29A, 29B, and can unload it in a state at right angles. Further, a vertical slip prevention rod 43 is fixed to the frame 1 in close proximity to prevent the held shorting bar 26 from shifting forward from the shorting bar holding member 42 and falling.

The shorting bar 26 used in the present invention, as shown in FIG. 6, is a copper gate having legs 26a at both ends that can be placed across both common conductive bars 44A and 44B laid on both sides of the electrolytic cell. The upper part is made of steel reinforcing member 2.
6b is reinforced in a covering manner. 45A and 45B are insulating bars. The weight of the shorting bar 26 is approximately 70 kg, compared to the conventional approximately 20 kg, and sufficient conduction can be obtained simply by placing it on the common conductive bar. The device allows the electrode plate to be mechanically attached and detached in conjunction with the loading and unloading work of the electrode plate.

The tank loading/unloading device configured as described above will be explained together with the schematic side view of FIG. 5 showing the loading operation of the anode plate and the cathode plate. When the anode plate 11 and the cathode plate 15 are not inserted into the electrolytic cell 46 and the shorting bar 26 is provided on the common conductive bar 44 at both ends of the electrolytic cell 46, this cell loading/unloading device A is operated. , the cathode plate 15 is suspended and held by the cathode plate holding rod 28 at the cathode plate waiting area, and then the anode plate 11 is suspended and held by the anode plate holding rod 13 at the anode plate waiting area, and then an overhead traveling crane (not shown) Operate electrolytic cell 4
6 and operate the rotor hook 7 to move the frame 1 downward together with the anode plate 11 and the cathode plate 15.

FIG. 5(a) is a diagram showing the suspended state of the anode plate 11 and the cathode plate 15 while they are being loaded into the electrolytic cell 46 by the downward movement of the frame 1. The cathode plate 15 is suspended by the hook portion 13b of the holding rod 13, and is held at a lower level than the cathode plate 15, which is suspended by the hook portion 28a of the cathode plate holding rod 28.

Further, when the frame body 1 is moved down, the anode plate 1
One end of the suspension section 11a of the suspension section 11a is suspended on the common conductive bar 44 and the other end is suspended on the insulating bar 45, and in this state, as described above, the power cylinder 4 or manual lever 22 of the anode plate holding mechanism 2 is suspended. When the anode plate holding rod 13 is rotated by 90 degrees by moving the movable bars 9A and 9B forward, the image shown in FIG.
As shown in b), the hook portion 13b becomes parallel to the anode plate 11, the protrusion 13a becomes perpendicular to the anode plate 11, and the hook portion 25a of the shorting bar holding member 25 also moves in the direction of the movable bars 9A, 9B. become parallel.

When the frame body 1 is further moved down, the protrusion 13a of the anode plate holding rod 13 has its lower inclined surface aligned with the anode plate 11.
It descends obliquely so as to slide on the suspension part 11a, and after descending obliquely, it serves as a spacer to maintain the distance between the electrode plates corresponding to the height of the protrusion and the width of the cathode holding rod. FIG. 5(c) shows the downward movement in this state,
The suspended portion 15a of the cathode plate 15 is shown suspended from the common conductive bar 44 and the insulating bar 45, and FIG.
d) operates the power cylinder 5 or manual lever 39 of the cathode plate holding mechanism 3 in this state to move the movable bars 29A, 2
9B is retreated and the cathode plate holding rod 28 is rotated by 90°, the hook portion 28a becomes parallel to the cathode plate 15 and is removed from the cathode plate 15. In this state, the hook portion 42a of the shorting bar holding member 42 is parallel to the movable bars 29A and 29B,
The shorting bar 26 can be suspended.

After the anode plate 11 and the cathode plate 15 are suspended on their respective common conductive bars 44, when the frame 1 is moved upward,
As shown in FIG. 5(e), the anode plate holding rod 13 and the cathode plate holding rod 28 leave the electrolytic cell 46. During this upward movement, the short-circuit bar holding members 25, 42 are moved to their hook portions 25a, 42a.
Since the short-circuiting bars 26 at both ends of the electrolytic cell 46 are suspended and lifted, normal electrolytic work begins, and the work of placing the anode plate 11 and the cathode plate 15 into the tank is completed.

Next, in the case of removing the electrode plate during electrolysis operation,
Since this is carried out in a substantially reverse order to that in the case of entering the tank, the explanation will be given with reference to FIG. In advance, short circuit bar holding members 25, 42
As shown in FIG. 5E, with the shorting bar 26 held in place, the anode plate holding rod 13 and the cathode plate holding rod 28 are attached so that their hook portions 13b and 28a are attached to the anode plate 11 and the cathode plate 15, respectively. It is inserted between the electrode plates of the electrolytic cell 46 in a parallel state.

Furthermore, as shown in FIG. 5(d), at the position where the anode plate holding rod 13 and the cathode plate holding rod 28 are in contact with or closest to the anode plate 11 and the cathode plate 15, the hook portion of the cathode plate holding rod 28 is It is inserted until the position of 28a is lower than the suspension part 15a of the cathode plate 15. During this downward movement, the shorting bar 26 held by the shorting bar holding members 25 and 42
are suspended from the common conductive bar 44 and are shorted.

Thereafter, as shown in FIG. 5(c), the cathode plate holding rod 28 is rotated 90 degrees to enable the cathode plate 15 to be suspended by the hook portion 28a, and one of the shorting bar holding members 42 is rotated. The hook portion 42a is made parallel to the shorting bar 26.

Further, as shown in FIG. 5(b), the frame body 1 is moved upward with the cathode plate 15 suspended, stopped once at the suspended position of the anode plate 11, and the anode plate holding rod 13 is rotated. hook part 1
3b is placed in a suspendable position, and the hook portion 25a of the other shorting bar holding member 25 is also made parallel to the shorting bar 26. Then, by pulling them up as shown in FIG. 5(a), the removal operation of the anode plate 11 and the cathode plate 15 is completed.

After that, the tank loading/unloading device A, in which the anode plate 11 and the cathode plate 15 are suspended at different heights, is transported by an overhead traveling crane to the anode plate processing area, where the anode plate 11 is first handed over, and then the cathode plate 15 is suspended. One cycle of tank removal work is completed by transporting the cathode plate 15 to the plate processing location and handing over the cathode plate 15.

Next, in actual operation at a lead electrolytic refining factory, 28 lead anode plates weighing 294 kg/piece before electrolysis were
For an electrolytic cell into which 29 lead cathode plates with a weight before electrolysis of 13 kg/sheet are charged, the tank loading/unloading device of the present invention described above is used.
The work of loading and unloading lead anode plates and lead cathode plates into and out of the bath was measured, and the time required for the process was measured. The number of tanks in and out was 308. The work was carried out by one traveling crane operator and two so-called sling operators who operated the tank loading/unloading equipment. The results are shown in Table 1. Further, as a comparative example, using the conventional tank loading/unloading device shown in FIG. 8, loading/unloading of an anode plate and a cathode plate was performed under the same conditions. The required time is also listed in Table 1.

[0053]

[Table 1]

[0054] As is clear from the results, by using the tank loading/unloading device of the present invention, it is possible to achieve work efficiency that is more than twice as high as when using the conventional tank loading/unloading device.

[0055]

[Effects of the Invention] As is clear from the above description, the present invention has the following effects. (1) In metal electrolytic operation, the anode plate group and the cathode plate group can be removed from the electrolytic cell simultaneously or separately, and can be loaded into the electrolytic cell.

(2) The anode plate group and the cathode plate group may be transported simultaneously and delivered to and from their respective standby or storage locations, or the anode plate group or the cathode plate group may be transported separately. It is possible to transport and deliver individually.

(3) Therefore, the loading/unloading of the electrode plate, that is, the replacement work can be carried out efficiently and economically.

(4) Further, a shorting bar holding member is provided,
In the case where the shorting bar can be attached to and detached from the common conductive bar and suspended in conjunction with the insertion and removal of the electrode plate, the operation of other electrolytic cells of the same series is hardly hindered.
The electrode plate replacement work can be performed more efficiently.

[Brief explanation of drawings]

FIG. 1 is a side view of an electrode plate loading/unloading device according to the present invention.

FIG. 2 is a plan view of the tank loading/unloading device shown in FIG. 1;

3 is a perspective view of a main part of an anode plate holding mechanism in the tank loading/unloading device of FIG. 1; FIG.

4 is a perspective view of a main part of a cathode plate holding mechanism in the tank loading/unloading device of FIG. 1; FIG.

FIG. 5 is a schematic side view showing the loading operation of the anode plate and the cathode plate in the tank loading/unloading device of FIG. 1;

6 is a perspective view of a shorting bar handled by the tank loading/unloading device of FIG. 1. FIG.

FIG. 7 is a perspective view showing a metal refining electrolytic cell.

FIG. 8 is a schematic perspective view of a conventional electrode plate loading/unloading device.

[Explanation of symbols]

A Tank loading/unloading device 1 Frame 2 Anode plate holding mechanism 3 Cathode plate holding mechanism 4 Power cylinder 5 Power cylinder 9A, 9B Movable bar 11 Anode plate 11a Suspension part 12 Connecting plate 13 Anode plate holding rod 13a Protrusion 13b Hook part 15 Cathode plate 15a Suspension part 17 Connecting horizontal rod 19 Connecting pin 22 Manual lever 23 Link rod 24 Link axis 25 Shorting bar holding member 25a Hook part 26 Shorting bar 27 Anti-slip rod 28 Cathode plate holding rod 28a Hook part 29A, 29B Movable bar 31 Connecting plate 34 Connecting horizontal rod 36 Connecting pin 39 Manual lever 40 Link rod 41 Link axis 42 Short-circuit bar holding member 42a Hook part 43 Anti-slip rod 44A, 44B Common conductive bar 45A, 45B Insulation bar 46 Electrolytic cell 47 Electrolyte

Claims (2)

[Claims] 1. A plurality of pairs of holding rods each having a hook portion at the lower end capable of holding a suspended portion of an electrode plate are rotatably attached to a frame body, and the electrolysis of the electrode plate is performed by moving the frame body up and down. A tank loading/unloading device that enables charging into and removal from an electrolytic tank, wherein the plurality of pairs of holding rods are arranged such that a holding rod for an anode plate and a holding rod for a cathode plate, each having a height difference between the hook portions, are used. It consists of a combination of holding rods arranged alternately, and
An electrode plate loading/unloading device characterized in that the anode plate holding rod and the cathode plate holding rod are rotated by separate drives. 2. A hook portion capable of holding a shorting bar having sufficient weight to exhibit sufficient conductivity by simply placing both ends on common conductive bars on both sides of the electrolytic cell in parallel to the plurality of pairs of holding bars. A pair of shorting bar holding members are attached to the frame so as to be rotatable in conjunction with the rotation of the holding rod, and vertical movement of the frame allows the shorting bar to be connected to the common conductive bar. 2. The device for loading and unloading an electrode plate according to claim 1, characterized in that it is capable of being delivered and delivered.