JP4308992B2 - Anode weight measuring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates generally to copper electrolytic refining technology, and more particularly to a weight measuring device for a cast anode for copper electrolysis.
[0002]
[Prior art]
Conventionally, an anode for copper electrolysis has been manufactured by a Walker method in which molten copper is poured into a horizontally arranged mold. As shown in FIG. 3, the shape is generally a body portion 101 having a substantially rectangular shape with a width W0 = about 920 mm and a height H0 = about 1010 mm, and ears protruding upward and on both sides from the body portion 101. And a shape having a portion 102. Further, the thickness of the body portion 101 is 37 to 51 mm, the thickness of the ear portion 102 is 18 to 40 mm, and the weight of one anode 100 is about 342 kg.
[0003]
However, the anode 100 taken out from the mold has the ear 102 or the trunk 101 warped as a whole, and the thickness of the ear and the trunk is not necessarily within a predetermined allowable dimensional error. Is not limited.
[0004]
When the anode 100 is warped or not formed in a predetermined thickness and shape, when the anode is placed in the electrolytic cell, the anode comes into contact with the cathode and cannot be electrolyzed.
[0005]
Therefore, conventionally, the anode 100 taken out from the mold is first measured in the thickness of the rear barrel portion in which the warp portion is corrected by pressing the ear portion 102 and the barrel portion 101, and then the weight is measured. The milling of the lower end surface 102a of the ear portion is performed only on the anode in which the item is manufactured within a predetermined allowable range.
[0006]
An example of an anode weight measuring apparatus conventionally used is shown in FIGS. A conventional weight measuring apparatus 1A will be briefly described below.
[0007]
As shown in FIGS. 4 and 5, the anode 100 taken out from the mold is placed on a walking beam 21 that is movably installed on the gantry 20. The walking beam 21 is moved by driving the hydraulic cylinder 22, and the anode 100 is transferred to the anode weight measuring position where the anode weight measuring device 1A is disposed.
[0008]
In the anode weight measuring apparatus 1 </ b> A, as can be understood with reference to FIG. 6, a movable base 32 is supported on a base 30 that is a frame structure via a hydraulic cylinder 31. Conventionally, as shown in FIG. 4, the movable table 32 has a T-shaped frame structure, and one load cell 33 is arranged at each end of the movable table 32. Further, in order to smoothly move the movable table 32 up and down, the movable table 32 has a sliding guide means 34 nested between each end and the base 30 so as to match the installation position of the load cell 33. Is arranged. Therefore, when the hydraulic cylinder 31 is driven, the movable base 32 is guided by the sliding guide means 34 and is movable in the vertical direction.
[0009]
When the anode 100 is transferred to the upper side of the anode weight measuring apparatus 1A, the hydraulic cylinder 31 is driven to move the movable table 32 upward. As a result, the tip contactor 33A of the load cell 33 comes into contact with the position near both ears of the anode 100 and the center of the lower end of the trunk opposite to the both ears. Furthermore, by driving the hydraulic cylinder 31, the anode 100 is supported by the three load cells 33, and the weight of the anode 100 is measured.
[0010]
When the weight measurement of the anode 100 is finished, the hydraulic cylinder 31 is driven, and the movable base 32 is moved downward. As a result, the anode 100 is placed on the walking beam 21, and the walking beam 21 is moved by driving the hydraulic cylinder 22, and the anode 100 is transferred to the next step. At this time, as described above, non-standard ones are removed, and only the anode 100 that has passed is transferred to the ear milling process.
[0011]
[Problems to be solved by the invention]
However, since the anode 100 has a weight of about 342 kg per sheet as described above, and the weight measurement of about 3000 sheets per day is required, the conventional anode weight measuring apparatus 1A having the above-described configuration is used. The load cell 33 is damaged by the impact force when the anode 100 and the upper end contact portion 33A of the load cell 33 contact each other, or the upper end contact portion 33A of the load cell 33 is severely worn. Therefore, conventionally, maintenance at least every three months has been required. This not only increases the maintenance cost, but also necessitates stopping the weight measurement work, and there is a problem in terms of work efficiency, and further improvement has been desired.
[0012]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an anode weight measuring apparatus that can reduce maintenance costs and increase work efficiency.
[0013]
[Means for Solving the Problems]
The above object is achieved by the anode weight measuring apparatus according to the present invention. In summary, the present invention includes a base, a support supported on the base via at least four load cells, and at least attached to the support so as to match an installation position of the load cell. Four air cylinders, each air cylinder having an air spring portion, attached to the upper surface of the air spring portion, and slidable through an oilless bearing with a dust seal. An anode weight measuring apparatus characterized in that the weight of a copper electrolysis anode is measured by supporting at least four electrolysis anodes.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the anode weight measuring apparatus according to the present invention will be described in more detail with reference to the drawings.
[0016]
1 and 2 show an embodiment of an anode weight measuring apparatus according to the present invention. In this embodiment, the anode weight measuring device 1 is positioned above the base 2 and a base 2 that is a frame structure configured using a “steel” shaped steel (frame). And a support base 3 which is also arranged as a frame structure.
[0017]
According to the present invention, the support base 3 is carried on the base 2 via a plurality of load cells 4. In the present embodiment, four load cells 4 are provided, and one load cell 4 is installed at each of the four corners of the base 2 that is rectangular.
[0018]
A guide means 5 is arranged on the base 2 so as to extend upward, and is slidably fitted in a guide hole 3 a formed in a lower flange of a frame constituting the support 3. With this configuration, the vertical movement of the support 3 relative to the base is stabilized.
[0019]
Further, according to the present invention, the upper flange surface of the frame constituting the support base 3 is not limited to this configuration, but preferably, at the four corners so as to match the installation position of the load cell 4. Each air cylinder 10 is installed. The air cylinder 10 includes an air spring portion 11 and a support rod portion 12 that is detachably fixed to the upper surface of the air spring portion 11 by bolting. Support rod 12 has a flange 12a for mounting the air spring portion 11 and a support rod 12b which projects upwardly from the flange 12a, the support rod 12, the bearing 13 is an oil-less bearing with dust seal It is slidably fitted to. The bearing 13 is attached to a support bracket 14 that is disposed outside the air spring portion 11 and is fixed to the support base 3. In this embodiment, the support rod 12 has a steel sliding portion diameter of 50 mm and a length of 240 mm, and the air spring portion 11 uses a bellows type air spring (trade name) manufactured by Yokohama Rubber Co., Ltd. And we were able to get good results. Moreover, as the load cell 4, the load cell (brand name) by Minebea Co., Ltd. was used.
[0020]
With the above configuration, by driving the air cylinder 10, the support rod 12 is guided upward by the bearing 13 and moves upward, and comes into contact with the lower surface of the anode 100 that is transported upward of the anode weight measuring device 1. .
[0021]
According to the present invention, the support rod 12 is in contact with the position near both ears of the anode 100 and both ends of the lower end of the trunk on the side opposite to both ears. Furthermore, by driving the air cylinder 10, the anode 100 is supported by the four support rods 12. That is, the anode 100 and the support base 3 are carried on the base 2 via the load cell 4, and the weight of the anode 100 is measured.
[0022]
According to the present invention, since the anode 100 is supported by the support rod 12 at at least four locations, the anode 100 is supported on the measuring device more stably than in the prior art. Further, the load cell 4 does not directly contact the anode, and the load cell is hardly worn or damaged.
[0023]
According to the present invention, the support rod 12 of the air cylinder 10 comes into contact with the anode 100. However, since the support rod 12 is directly attached to the air spring portion 11, the anode 100 and the support rod 12 come into contact with each other. In this case, the impact force is alleviated by the air spring, and the impact force applied to the load cell is extremely small. Therefore, the support rod 12 or the load cell 4 is not damaged by the impact force at the time of contact between the anode 100 and the support rod 12, and the degree of wear of the support rod 12 is extremely small. According to the results of the inventors' experiment, the anode weight measuring device of the present invention did not require any maintenance even if it was continuously used for one year.
[0024]
【The invention's effect】
As described above, the anode weight measuring apparatus according to the present invention includes a base, a support that is supported on the base via at least four load cells, and a support base that matches the installation position of the load cell. Each air cylinder has an air spring part, is attached to the upper surface of the air spring part, and is slidable through an oilless bearing with a dust seal. Thus, since the weight of the copper electrolysis anode is measured by supporting the copper electrolysis anode at at least four locations, the maintenance cost can be reduced and the working efficiency can be greatly increased.
[Brief description of the drawings]
FIG. 1 is a front view of an anode weight measuring apparatus according to the present invention.
FIG. 2 is a plan view of an anode weight measuring apparatus according to the present invention.
FIG. 3 is a plan view showing an example of an anode for copper electrolysis.
FIG. 4 is a plan view showing an example of a conventional anode weight measuring apparatus.
FIG. 5 is a front view showing an example of a conventional anode weight measuring apparatus.
FIG. 6 is a side view showing an example of a conventional anode weight measuring apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Anode weight measuring apparatus 2 Base 3 Support stand 4 Load cell 5 Guide means 10 Air cylinder 11 Air spring part 12 Support rod part 12b Support rod 100 Anode for copper electrolysis

Claims (1)

A base, a support supported on the base via at least four load cells, and at least four air cylinders attached to the support so as to match the installation position of the load cell. Each air cylinder has an air spring portion, is attached to the upper surface of the air spring portion, and has at least four anodes for copper electrolysis with a support rod slidable through an oilless bearing with a dust seal. And measuring the weight of the copper electrolysis anode.

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