Mounting platform for electric copper mines, and method for storing electric copper plates.

Abstract

To provide a placement stand for an electrolytic copper pile-up which enables further efficient work to prevent a load-shift of the electrolytic copper pile-up which has been performed by a plurality of fork lifts.SOLUTION: An electrolytic copper pile-up placement stand 1 for placing an electrolytic copper pile-up formed by laminating a plurality of electrolytic copper plates 21 includes: a placement plate 11 having a rectangular placement surface 110; and a first stopper 12 of a columnar member that elects perpendicular to the placement surface 110 at a central part of a first side of the placement surface 110.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a placing stand for electrolytic copper piles and a method for storing electrolytic copper plates. More specifically, the present invention relates to a placing stand for electrolytic copper piles, which is a storage means for electrolytic copper plates produced in the electrolytic step of non-ferrous metal smelting, and a method for storing electrolytic copper plates.

Background Art

[0002] In the electrolytic step of non-ferrous metal smelting, anodes and cathodes are alternately arranged in an electrolytic cell filled with an electrolytic solution, and electricity is applied to electrodeposit high-purity metal on the cathode surface to manufacture products. After production, a plurality of electrolytic copper plates (about 10 to 40 sheets as an example) are stacked in the vertical direction (hereinafter, the laminated body of electrolytic copper plates in this state is referred to as an "electrolytic copper pile") and stored in an electrolytic copper yard until shipment. In addition, for the work of charging electrolytic copper into a melting furnace or the like in the next step, this "electrolytic copper pile" is used as one packing unit, and each pile is inserted into the furnace. (See Patent Document 1).

[0003] Here, nodules may be generated on the surface of individual electrolytic copper plates constituting the "electrolytic copper pile", or a slight difference may occur in the vertical thickness depending on the energization state from energization to cathode pulling. In some cases, convex portions may be intentionally formed on the surface (see Patent Document 1). Therefore, in many cases, the individual electrolytic copper plates constituting the "electrolytic copper pile" cannot maintain a mutually parallel state, and as a result, the "electrolytic copper pile" tends to be inclined with respect to the vertical direction. In such an inclined "electrolytic copper pile", there is a risk that the electrolytic copper plates may collapse due to load collapse during the above storage period or on a conveyor for charging into the melting furnace described above.

[0004] To prevent the collapse of electrical copper plates due to the collapse of the load in the "electric copper mine" as described above, conventionally, as an example, the following operation was performed using two forklifts to correct the tilt of the electrical copper mine. Specifically, this operation involves fixing the electrical copper mine with the first forklift, while using the second forklift to lift a portion of the electrical copper plates on the upper side that make up the electrical copper mine, rotating the lifted portion of electrical copper plates horizontally, and then repositioning it on top of the stack of electrical copper plates on the lower side. This process is repeated to correct the tilt of the electrical copper mine. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2000-119892 [Overview of the project] [Problems that the invention aims to solve]

[0006] The present invention aims to make the cumbersome task of preventing cargo collapse at electric copper mines, which was conventionally performed using multiple forklifts, more efficient. [Means for solving the problem]

[0007] The inventors of the present invention have come up with the idea that by using a special electric copper mine mounting platform with a devised arrangement of stoppers, the complicated work of preventing the electric copper mine from collapsing can be efficiently performed with a single forklift, and have completed the present invention. Specifically, the present invention provides the following.

[0008] (1) A mounting stand for an electrolytic copper mine, which is made up of multiple electrolytic copper plates stacked together, comprising: a mounting plate having a rectangular mounting surface; and a first stopper, which is a columnar member erected perpendicular to the mounting surface at the center of the first side of the mounting surface.

[0009] (1) With the electric copper mine mounting platform, the complicated work of preventing the collapse of loads in an electric copper mine, which was conventionally performed using multiple forklifts, can be efficiently carried out with just one forklift.

[0010] (2) The mounting base for an electric copper mine according to (1), further comprising a pair of columnar members, which are second stoppers, erected perpendicular to the mounting surface described above at two locations on an edge symmetrical to the center of the second edge perpendicular to the first edge.

[0011] (2) The electric copper mine mounting platform allows for the efficient execution of the complex work required to prevent the collapse of the electric copper mine, which was previously done using multiple forklifts, using only one forklift. Furthermore, if the electric copper mine gets wet due to rain or other reasons, the entire structure can be tilted without collapsing, allowing for efficient and safe drainage of water that has seeped into the gaps between the stacked electric copper plates.

[0012] (3) The electric copper mine mounting platform according to (2), wherein a side surface including the first or third side perpendicular to the second side is provided with a claw insertion hole into which a pair of forklift claws can be inserted.

[0013] With the electric copper mine mounting platform of (3), by working with a pair of forklift forks inserted into the fork insertion holes, the electric copper mine mounting platform can be lifted and moved as needed, or the entire electric copper mine can be tilted during the drainage work described above, in a safer and more efficient manner.

[0014] (4) A method for storing electrolytic copper plates, using the electrolytic copper mine mounting stand described in (1) and a forklift having a pair of claws, comprising: an electrolytic copper plate lifting step in which the pair of claws of the forklift are inserted into the gaps between the electrolytic copper plates forming the electrolytic copper mine from the side of the third side opposite to the first side and a portion of the electrolytic copper plates are lifted; and an electrolytic copper plate rearrangement step in which the pair of claws of the forklift are lowered while passing on both sides of the first stopper, thereby rearranging the electrolytic copper plates that were lifted in the electrolytic copper plate lifting step onto the electrolytic copper plates remaining on the mounting surface described above, with the orientation of the electrolytic copper plates lifted in the electrolytic copper plate lifting step rotated horizontally.

[0015] According to the method of storing the electric copper plates in (4), the complicated work of preventing the collapse of the electric copper mine, which was conventionally performed using multiple forklifts, can be efficiently carried out using only one forklift.

[0016] (5) A method for storing electrolytic copper plates, comprising: (2) or (3) a mounting stand for electrolytic copper plates and a forklift having a pair of claws, the method comprising: an electrolytic copper plate lifting step in which the pair of claws of the forklift are inserted between the electrolytic copper plates forming the electrolytic copper plates from the side of the third side opposite to the first side to lift a portion of the electrolytic copper plates; an electrolytic copper plate re-loading step in which the pair of claws of the forklift are lowered while passing both sides of the first stopper to re-place the electrolytic copper plates lifted in the electrolytic copper plate lifting step on the electrolytic copper plates remaining on the mounting surface described above in the electrolytic copper plate lifting step in a state where they have been rotated horizontally; and a drainage step in which the forklift is used to lift a portion of the mounting stand for electrolytic copper plates on which the electrolytic copper plates are mounted, and tilts the mounting stand for electrolytic copper plates so that the second side is at a position lower relative to the fourth side opposite to this side, thereby draining water that has entered the gaps between the electrolytic copper plates.

[0017] According to the method for storing electrolytic copper plates of (5), the complicated work for preventing collapse of a stacked pile of electrolytic copper plates, which has conventionally been performed by a plurality of forklifts, can be efficiently performed with a single forklift. Furthermore, when the stacked pile of electrolytic copper plates gets wet due to rainfall or the like, the entire stacked pile can be tilted without collapsing the electrolytic copper plates, so that water that has entered the gaps between the stacked electrolytic copper plates can be drained efficiently and safely. [Advantageous Effects of Invention]

[0018] According to the present invention, the complicated work for preventing collapse of a stacked pile of electrolytic copper plates, which has conventionally been performed by a plurality of forklifts, can be performed more efficiently. [Brief Description of Drawings]

[0019] [Figure 1] It is a perspective view of the mounting table for stacked electrolytic copper plates according to the present invention. [Figure 2] It is a top view of the mounting table for stacked electrolytic copper plates according to the present invention. [Figure 3] It is a perspective view showing a state in which a stacked pile of electrolytic copper plates is placed on the mounting table for stacked electrolytic copper plates of FIG. 1. [Figure 4] It is a drawing schematically showing an embodiment of the electrolytic copper plate lifting step in the method for storing electrolytic copper plates according to the present invention. [Figure 5] It is a drawing schematically showing an embodiment of the electrolytic copper plate re-stacking step in the method for storing electrolytic copper plates according to the present invention. [Figure 6] It is a drawing (top view) schematically showing an embodiment of the draining step in the method for storing electrolytic copper plates according to the present invention. [Figure 7] It is a drawing (front view, illustration of a forklift is omitted) schematically showing an embodiment of the draining step in the method for storing electrolytic copper plates according to the present invention. [Mode for Carrying Out the Invention]

[0020] Hereinafter, preferred embodiments of the mounting table for stacked electrolytic copper plates and the method for storing electrolytic copper plates performed using the same according to the present invention will be described. However, the present invention is not limited to the following embodiments.

[0021] <Mounting table for electrolytic copper piles> The mounting table for electrolytic copper piles of the present invention is a dedicated table used for mounting and temporarily storing "electrolytic copper piles", which are laminates formed by stacking a plurality of electrolytic copper plates. In a general copper smelting plant, for example, hundreds to thousands of electrolytic copper plates are refined per day, and "electrolytic copper piles" stacked in groups of about 10 to 40 sheets are carried out. Each individual "electrolytic copper pile" then becomes the handling unit (pile) in subsequent processes.

[0022] The mounting table 1 for electrolytic copper piles shown in FIG. 1 is a preferred embodiment of the mounting table for electrolytic copper piles of the present invention. As shown in the figure, the mounting table 1 for electrolytic copper piles comprises at least a mounting plate 11 having a rectangular mounting surface 110, and a first stopper 12, which is a columnar member, erected perpendicularly to the mounting surface 110 at the central part of a first side 111 that is any one of the four sides of the mounting surface 110. The first stopper 12 is preferably a columnar metal member such as a quadrangular prism in which at least the surface facing the center of the mounting surface 110 is planar, and the height thereof is, for example, about 400 mm to 600 mm.

[0023] By configuring the mounting table 1 for electrolytic copper piles to have one first stopper 12 installed in the above aspect, the step of lifting a part of the electrolytic copper plates 21 on the upper side from the electrolytic copper pile ("electrolytic copper plate lifting step"), and the step of rearranging and remounting the electrolytic copper plates 21 lifted in the aforementioned "electrolytic copper plate lifting step" onto the electrolytic copper plates 21 remaining on the mounting surface 110 by swapping their horizontal positions ("electrolytic copper plate re-stacking step"), can both be performed by a single forklift (see FIGS. 4 and 5). Details of the embodiment of the method for storing electrolytic copper plates of the present invention, in which these steps are sequentially performed, will be described later.

[0024] Furthermore, it is more preferable that the electric copper mine mounting base 1 further includes a pair of columnar members, the second stoppers 13A and 13B, erected perpendicular to the mounting surface 110 at two locations on the sides symmetrical to the center of the second side 112 which is perpendicular to the first side 111. The second stoppers 13A and 13B are also preferably columnar metal members, such as a rectangular prism shape, with at least one side facing the center of the mounting surface 110 being flat, similar to the first stopper 12, and their height is, for example, about 400 mm to 600 mm.

[0025] By providing the electric copper plate mounting platform 1 with two second stoppers 13A and 13B installed in the manner described above, the "electric copper plate lifting process" and the "electric copper plate transshipment process" can be performed by a single forklift, as described above. Furthermore, the process of draining water that has entered the gaps between the electric copper plates 21 ("drainage process") can also be performed efficiently and safely by the same forklift (see Figures 6 and 7). Details of the embodiment of the electric copper plate storage method of the present invention, in which each of these processes, including the "drainage process," is performed sequentially, will be described later.

[0026] The first stopper 12, the second stoppers 13A and 13B (hereinafter also referred to as "each stopper 12 and 13") may be made of metal, and more preferably of steel. Furthermore, each stopper 12 and 13 is preferably fixed to the mounting surface 110 by welding, and more preferably is joined to the mounting surface 110 below by a mortise and tenon structure or by screwing. By fixing each stopper 12 and 13 in this manner, the electrolytic copper being transported by the forklift 3 can be stably received without damage and transported quickly.

[0027] Furthermore, although the electric copper mine 2 typically weighs between 1 and 5 tons, when tilting the electric copper mine mounting stand 1, such as when performing the aforementioned "drainage process," even if the aforementioned heavy weight of the electric copper mine 2 is concentrated on one of the "stoppers 12 and 13," the "stoppers 12 and 13" fixed in the manner described above will not be damaged. Moreover, even if force is concentrated particularly at the boundary between the mounting surface 110 and the "stoppers 12 and 13," these "stoppers 12 and 13" will not detach from the mounting surface 110 or deform. In this way, the electric copper mine mounting stand 1, with its first stopper 12 and second stoppers 13A and 13B, can safely support the heavy load of the electric copper mine 2 even when implementing the "method for storing electric copper plates" according to the present invention.

[0028] Furthermore, when the electrical copper plates are bundled and secured with bands before transport, only the electrical copper plate that protrudes the most from the electrical copper mine 2 will be pushed further into the mine 2. However, the positions of the individual electrical copper plates constituting the electrical copper mine 2, which are loaded in the manner described above, can also be adjusted using the "stoppers 12 and 13".

[0029] Furthermore, as shown in Figures 1 and 2, four or more spacers 115 of any height can be provided on the mounting surface 110 of the electric copper mine mounting base 1 to secure a gap below the electric copper mine 2 on the mounting surface 110 so that forklift tines can be easily inserted. In this case, the electric copper mine 2 is placed on the upper surface of each spacer 115.

[0030] Figure 3 shows the state in which the electrolytic copper mine is placed on the mounting surface 110 (spacer 115) of the electrolytic copper mine mounting base 1. In this state, the individual electrolytic copper plates that make up the "electrolytic copper mine" usually have variations in thickness or more, or convex parts are formed on each surface. Therefore, in the electrolytic copper mine 2, gaps (not shown) are generally formed between the individual electrolytic copper plates 21 due to the variations in their thickness and surface shape.

[0031] Furthermore, as shown in Figures 1, 3, 6, and 7, the electric copper mine mounting base 1 is more preferably provided with claw insertion holes 116 into which a pair of forklift claws can be inserted on at least one of two sides, which include the first or third side and are perpendicular to the second side 112. Details of an embodiment of the electric copper plate storage method of the present invention, which can be carried out using the electric copper mine mounting base 1 equipped with claw insertion holes 116 and a forklift, will be described later.

[0032] <Storage method for electrical copper plates> The present invention provides a method for storing electrolytic copper plates, which corrects the tilt of the electrolytic copper plates on the mounting platform caused by variations in the surface shape of individual electrolytic copper plates 21. This is achieved by sequentially performing the following steps, which are described in detail below, namely the "electrolytic copper plate lifting step" and the "electrolytic copper plate transfer step," as essential steps.

[0033] Furthermore, the "method for storing electrolytic copper plates" of the present invention is more preferably a "drainage process" is performed so that when the electrolytic copper plate 2 gets wet due to rain or the like, the entire electrolytic copper plate 2 is tilted without collapsing, and water that has entered the gaps between the stacked electrolytic copper plates 21 is drained.

[0034] Furthermore, the "method for storing electrolytic copper plates" of the present invention can be carried out by a single forklift using the electrolytic copper mine mounting platform 1, etc., as described in detail above, according to any of the above embodiments. In addition, any general forklift having a pair of parallel forks 31 can be used without any particular limitations.

[0035] However, when using the electric copper mine mounting platform 1 equipped with fork fork insertion holes 116 into which a pair of forklift forks can be inserted, it is preferable to use a "fork rotation type forklift" as the forklift for performing the "electric copper plate storage method" of the present invention, which can tilt the lifted workpiece at any angle by rotating the pair of forks at any angle. This makes it possible to perform the above-mentioned "drainage process" safely and efficiently, as will be described in more detail later.

[0036] [Electro-copper sheet lifting process] The "electric copper plate lifting process" is a process in which a pair of forks 31 of the forklift 3 are inserted between the individual electric copper plates 21 that form the electric copper plate, from the side of the third side 113 opposite the first side 111, and some of the electric copper plates 21 are lifted.

[0037] As shown in Figure 4, during this process, the pair of forks 31 of the forklift 3 are inserted from the third side 113 toward the first side 111 into any gap between the electrolytic copper plates 21. At this time, each electrolytic copper plate is pushed toward the first side 111 from the third side 113. However, in the electrolytic copper mine mounting table 1, there is a first stopper 12, which is a columnar member erected perpendicular to the mounting surface 110 at the center of the first side 111. This prevents the position of the electrolytic copper plates 21 from shifting in this direction, so in the present invention, the "electrolytic copper plate lifting process" can be performed efficiently and safely with a single forklift.

[0038] [Electro-copper sheet transshipment process] The "electric copper plate transfer process" is a process in which the pair of forks 31 of the forklift 3 are lowered while passing on both sides of the first stopper 12, thereby repositioning the electric copper plate 21 that was lifted in the "electric copper plate lifting process" onto the electric copper plate 21 that remained on the mounting surface 110 in the "electric copper plate lifting process" in a state where it has been rotated horizontally.

[0039] As shown in Figure 5, when this process is carried out, the electric copper plate 21 (electric copper plate to be transferred) that was lifted in the "electric copper plate lifting process" is first moved from the side of the first edge 111 toward the third edge at a position higher than the upper surface of the first stopper 12, thereby moving it into the space on the mounting surface 110. Then, by lowering the pair of forks 31 of the forklift 3 while passing them on both sides of the first stopper 12, the electric copper plate 21 (electric copper plate to be transferred) in the space on the mounting surface 110 is placed back on the electric copper plate 21 remaining on the mounting surface 110 in a state where it has been rotated 180° horizontally (see the position of the ● on the electric copper plate in Figures 4 and 5). In the electric copper mine mounting table 1, the first stopper 12 is located in the center of the first edge 111, so the pair of forks 31 of the forklift 3 can be lowered while passing them on both sides of the first stopper 12. As a result, in this invention, the "electric copper plate transshipment process" can be efficiently performed using a single forklift.

[0040] [Drainage process] The "drainage process" involves using a forklift 3 to lift a portion of the electric copper mine mounting platform 1 on which the electric copper mine 2 is placed, and tilting the platform 1 so that the second side 112 is relatively lower than the fourth side 114 opposite to it, thereby draining the water that has seeped into the gaps between the electric copper plates 21. Here, since most electric copper mines are stored outdoors in places without roofs, it is necessary to cover them with large sheets to prevent water from entering the gaps between the stacked electric copper plates 21. If the melting process is carried out with water contained in the gaps between the multiple stacked electric copper plates 21, it can induce a steam explosion in the melting furnace, and in the worst case, damage to the melting furnace. The surface of a wet electric copper mine dries relatively quickly, but it takes time for the water that has entered the gaps between the stacked electric copper plates 21 to dry, so this water drainage work is an extremely important task.

[0041] When performing this process, as an example, as shown in Figure 7, the electric copper mine mounting base 1 on which the electric copper mine 2 is placed is tilted by lifting a part of the bottom surface of the electric copper mine mounting base 1, specifically the side of the fourth side 114, with a pair of forks 31 of the forklift 3, so that the second side 112 is at a relatively lower position than the fourth side 114. On the electric copper mine mounting base 1, the second stoppers 13A and 13B are erected perpendicular to the mounting surface 110 at two locations on the sides symmetrical to the center of the second side 112. Therefore, in the state in which the mounting surface 110 is tilted as described above, the electric copper plate 21 can be stably supported by the second stoppers 13A and 13B on the side of the second side 112. As a result, in the present invention, the "drainage process" can be performed efficiently and safely with a single forklift.

[0042] Furthermore, this "drainage process" can be carried out more safely and efficiently by using an electric copper mine mounting platform 1 equipped with claw insertion holes 116 into which a pair of forklift claws can be inserted, and by using the aforementioned "claw-rotating type forklift". Specifically, as shown in Figure 6, the pair of claws 31 of the forklift 3, which is a "claw-rotating type forklift", are inserted into the claw insertion holes 116 of the electric copper mine mounting platform 1, and with the electric copper mine mounting platform 1 and the pair of claws 31 of the forklift 3 stably engaged, the electric copper mine mounting platform 1 is lifted up to a height of about 500 mm to 600 mm from the ground, and in that state, the pair of claws 31 are rotated at an appropriate angle and direction of rotation, so that the electric copper mine mounting platform 1 is tilted so that the second side 112 is in a relatively lower position than the fourth side 114, as shown in Figure 7, can be carried out safely and efficiently. [Explanation of symbols]

[0043] 1. Mounting platform for electric copper mines 11 Mounting plate 110 Mounting surface 12. First Stopper 13A, 13B Second stopper 111 First side 112 Second side 113 Third side 114 The fourth side 115 Spacer 116 Nail insertion hole 2 Electric Copper Mine 21 Electrolytic copper plate 3 Forklift 31 Pair of claws

Claims

1. A mounting stand for an electrolytic copper mine, which is made up of multiple stacked electrolytic copper plates, A mounting plate having a rectangular mounting surface, A first stopper, which is a metal columnar member, is erected perpendicular to the aforementioned mounting surface at the center of the first edge of the mounting surface and fixed by welding, Equipped with, Mounting platform for electric copper mines.

2. The structure includes a pair of columnar members, which are second stoppers, erected perpendicular to the aforementioned mounting surface at two locations on an edge symmetrical to the center of the second edge that is perpendicular to the first edge. A mounting platform for an electric copper mine according to claim 1.

3. The side surface including the first or third side perpendicular to the second side is provided with a fork insertion hole into which a pair of forks of a forklift can be inserted. A mounting platform for an electric copper mine according to claim 2.

4. A method for storing electrolytic copper plates, using the electrolytic copper mine mounting platform described in claim 1 and a forklift having a pair of claws, The process of lifting an electric copper plate involves inserting the pair of forks of the forklift from the third side opposite the first side between the electric copper plates forming the electric copper plate and lifting a portion of the electric copper plate, In the electrical copper plate lifting process, the pair of forks of the forklift are lowered while passing on both sides of the first stopper, thereby repositioning the electrical copper plate that was lifted in the electrical copper plate lifting process onto the electrical copper plate remaining on the aforementioned surface, with the plate rotated horizontally; A method for storing electrical copper plates.

5. A method for storing electric copper plates, using the electric copper mine mounting platform described in claim 2 or 3 and a forklift having a pair of claws, The process of lifting an electric copper plate involves inserting the pair of forks of the forklift from the third side opposite the first side between the electric copper plates forming the electric copper plate and lifting a portion of the electric copper plate, In the electrical copper plate lifting process, the pair of forks of the forklift are lowered while passing on both sides of the first stopper, thereby repositioning the electrical copper plate that was lifted in the electrical copper plate lifting process onto the electrical copper plate remaining on the aforementioned surface, with the plate rotated horizontally; A drainage process is performed by using the forklift to lift a portion of the electric copper mine mounting platform on which the electric copper mine is placed, and tilting the electric copper mine mounting platform so that the second side is at a relatively lower position than the fourth side opposite to it, thereby draining water that has entered the gaps between the electric copper plates. A method for storing electrical copper plates.

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