KR102209110B1 - Crane for electrolytic cell and the operating method - Google Patents

Abstract

The present invention relates to a crane device for an electrolytic cell, and the crane device includes a crab body mounted on a rail and sliding; A pull-out member mounted on the crab body and drawing the negative electrode plate immersed in the electrolytic bath upward; A position member for detecting a stop position of the crab body; An acceleration/deceleration member for decelerating the sliding speed when the crab main body approaches a stop position, or controlling acceleration when starting the sliding from the stop state; And a fastening state sensing means for detecting a fastening state of the negative plate drawn out by the fastening hole on the withdrawal member.
Therefore, by the positioning member and the acceleration/deceleration member, the crane device can be stopped at the position of the corresponding negative electrode plate. In particular, the other positive plate around in the process of pulling the negative plate out of the electrolyzer by the fastening state detection means. In addition, the effect of preventing the occurrence of a short circuit occurs while contacting the electrolyzer.

Description

Crane device for electrolyzer and its operating method {CRANE FOR ELECTROLYTIC CELL AND THE OPERATING METHOD}

The present invention relates to a crane device for pulling out and transferring a negative electrode plate immersed in an electrolytic cell, and more particularly, to a crane device for an electrolyzer capable of solving various problems that may occur during the withdrawal process, and a method of operating the same.

In general, electrolysis refers to electrolysis, and it refers to a phenomenon that causes chemical reactions such as the formation of gas or precipitation of metals as ions that are ionized and present in the liquid are transferred to the negative and positive electrodes by passing an electric current through the electrolyte. In addition, electrolytic smelting is performed to extract and purify metals of particularly high purity by using this phenomenon.

Such electrolytic smelting is performed through an electrolysis process after immersing a plurality of large electrode plates in an electrolytic cell containing an electrolyte.

That is, to the plurality of electrode plates disposed in the electrolytic cell, cathodes and anodes are alternately connected and then energized to be ionized in the electrolyte, such as Zn2+, Cu2+, etc., are moved to the side of the cathode plate to which the negative current is applied and electrodeposited, resulting in purity. A reduction action in which high zinc or copper is precipitated occurs, and an oxidation action such as generation of cations and generation of oxygen occurs on the side of the anode plate cross-excreted adjacent to the cathode plate.

The electrolyte is preferably an aqueous solution containing a metal to be precipitated, such as an aqueous zinc sulfate solution or an aqueous copper sulfate solution, as an electrolyte.

Through this process, when a certain amount of metal ions present in the electrolyte is electrodeposited and precipitated on the negative electrode plate by electrolysis, the negative electrode plate is transported through a transport means such as a crane to peel off the electrodeposited metal.

Document 1: Registered Patent Publication No. 10-0629171 (announced on September 27, 2006) "A method for detecting a driving position, an apparatus, and a crane system having the same. Document 2: Registered Patent Publication No. 10-0732913 (2007.06.29. Announcement) "Stop position guidance method and device and crane system having the same" Document 3: Unexamined Patent Publication No. 2001-0073546 (published on Aug. 2001) "Anode plate for electrolytic smelting"

The cathode plate used in this process is generally pulled out of the electrolyzer once every 24 hours to peel off the metal electrodeposited on the cathode plate to obtain pure metal.

However, in the process of pulling out the negative plate from the electrolyzer, the operator directly checks whether the hook of the crane and the hook of the negative plate are properly engaged.

If the negative plate is not properly connected to the crane's binding port, the negative plate cannot rise vertically from the electrolyzer, and there is a problem that it may hit other positive plates or hit the electrolyzer, resulting in a short circuit, and this accident damages the expensive rectifier. There is a problem of adding

In addition, the speed at which the crane slides on the rail to pull out the negative plate is maintained at a speed of about 120 m/min. At this time, because the weight of the crane is significant, it cannot stop at the designated position at once, and moves back and forth to adjust the position.

The cathode plate can be lifted vertically from the electrolyzer only when the crane's stop position is within ±5mm.

Currently, in this case, the operator changes the crane from automatic to manual and directly manipulates the crane to move the crane to a predetermined position, which causes a process delay.

Accordingly, the present invention was invented to solve the above-described problems, and an object of the present invention is that the crane can be stopped at the position of the corresponding negative plate, and the binding hole vibrates back and forth in the process of stopping. It is to provide a crane device for an electrolytic cell that can be prevented.

In addition, it is to provide a crane device for an electrolyzer that can prevent a short circuit from occurring while contacting other anode plates or electrolyzers in the process of pulling the cathode plate out of the electrolyzer.

These objects are achieved by the present invention, and according to one aspect of the present invention, an electrolytic cell crane device includes a crab body mounted on a rail and sliding; A drawing member mounted on the crab body and drawing the negative electrode plate immersed in the electrolytic bath upward; And a positioning member for sensing a stop position of the crab body, and an acceleration/deceleration member configured to decelerate the running speed when the crab body approaches the stop position or to control acceleration when starting the run from the stop state. , The acceleration/deceleration member uses a hydraulic brake, and the withdrawal member includes a pair of vertical frames fixed vertically to a lower portion of the crab body; A horizontal frame that is raised and lowered from the vertical frame; And a pair of fasteners seated on the horizontal frame and fastened or released with a pair of hooks of the negative electrode plate, and the positioning member measures the distance from the reference position to the crab body to locate each negative plate. It is calculated and identified, and the drawing member is provided with a fastening state detecting means for detecting a fastening state of the negative plate drawn out by the fastening hole, and the fastening state detecting means is the inclination state of the negative plate fastened to the fastening port. A tilt sensor to detect is included, and the tilt sensor is capable of sliding horizontally along the horizontal frame, and the crab body. The withdrawal member, the position member, the acceleration/deceleration member, and the fastening state detection means are controlled by a control unit, and the control unit is the crab body. It characterized in that it is connected by wireless to the withdrawal member, the position member, the acceleration/deceleration member, and the fastening state detection means.
According to another aspect of the present invention, there is provided a method of operating a crane that is transferred from an upper portion of an electrolytic cell and pulls out a negative electrode plate, comprising: an operation confirmation step of checking whether there is an operation of drawing out the negative plate; A sliding step in which the crab body slides to a place where the negative electrode plate is located if there is a withdrawal operation in the operation confirmation step; A positioning step of checking whether the corresponding negative plate has reached within a set distance by the positioning member; A deceleration step of decelerating to a constant speed by an acceleration/deceleration member when it is confirmed that the arrival is within the distance set in the positioning step; An arrival confirmation step of checking whether a corresponding negative plate to be drawn out has been reached; A binding step in which, when the crab body reaches the corresponding negative electrode plate in the arrival confirmation step, the binding hole of the drawing member is attached to the hook of the corresponding negative electrode plate; A drawing step of drawing upward by the drawing member when the fastening hole is attached to the hook; A retreating step in which the crab body slides to its original position while the negative electrode plate is pulled out; A separation step of separating the negative electrode plate drawn out after the retreating step; And a return step in which the work is returned after the separation step,
A predetermined distance raising step of raising the negative electrode plate upward by a predetermined distance after the binding step; A binding confirmation step of confirming whether the negative plate is normally bonded by the fastening state detecting means after the step of increasing the predetermined distance; And if the binding is abnormally confirmed in the binding confirmation step, the negative plate is lowered to terminate the binding, and thereafter, the rebinding step of proceeding to the binding step in which the binding hole is bound to the hook of the negative plate is proceeded. It is characterized.

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According to the above configuration of the present invention, the crane device can be stopped at the position of the corresponding negative plate by the positioning member and the acceleration/deceleration member, and also prevents the binding hole from vibrating back and forth during the stopping process. There will be an effect that can be done.

In addition, in the process of pulling the negative plate out of the electrolyzer by the fastening state detection means and the bonding confirmation step, an effect of preventing a short circuit from occurring while contacting with other adjacent positive plates or electrolyzer is generated.

1 is a plan view of the mounted state of the electrolytic cell crane of the present invention.
Figure 2 is a block diagram of the crane shown in Figure 1;
3 is a view for explaining the withdrawal member shown in Figure 2;
Figure 4 is a view for explaining the fastening state sensing means.
5 is a flow chart for explaining the operation of the crane.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals will be used for the same parts throughout the drawings.

1 is a plan view of the mounted state of the electrolytic cell crane of the present invention, Figure 2 is a configuration diagram of the crane shown in FIG.

As shown in the drawings, the crane device for an electrolytic cell according to the present invention shown by reference numeral 10 includes a crab body 20, a pull-out member 30, a positioning member 40, an acceleration/deceleration member 50, and a fastening state detection It consists of means (60) and the like.

The crab body (20). The withdrawal member 30, the position member 40, the acceleration/deceleration member 50, and the fastening state detection means 60 are controlled by the control unit 200, and are connected by wireless.

The crab body 20 is a device that slides along the rail 130 located above the electrolytic cell 100.

The withdrawal member 30 is a member that is mounted on the crab body 20 and draws the cathode plate 110 immersed in the electrolytic bath 100 upward.

The withdrawal member 30 will be described with reference to FIG. 3.

As shown in the figure, the withdrawal member 30 is a pair of vertical frames 31 fixed vertically to the lower portion of the crab body 20 is fixed. The horizontal frame 33 is lifted up and down in the vertical frame 33. In addition, the binding port 35 is mounted on the horizontal frame 33 to be fastened or released with a pair of hooks 120 formed on the negative electrode plate 110.

That is, in a state in which a pair of fastening holes 35 are coupled with a pair of hooks 120 formed on the negative electrode plate 110, withdrawal is made by the elevation of the horizontal frame 33.

In addition, the acceleration/deceleration member 50 is a member that decelerates the sliding speed when the crab body 20 approaches a stop position, or controls acceleration when the crab body 20 starts sliding from a stop state. When decelerating the speed of the crab body 20, a hydraulic brake may be used.

In addition, the positioning member 40 is a member that detects the stop position of the crab body 20.

The positioning member 40 can be identified by measuring the distance from the reference position to the crab body 20 to calculate the position of each of the negative electrode plates 110.

That is, as shown in FIG. 3, the control device in which the control unit 200 is embedded is fixed, and the crab body 20 slid on the rail 130 is moved away from or close to the control device (control unit, 200). In this case, the control device can determine the positions of the cathode plate 110 and the crab body 20 by calculating the distance to the crab body 20.

The positioning member 40 according to another method of the present invention is mounted on a plurality of reference marks (not shown) corresponding to each negative electrode plate 110 and the crab body 20 to identify each reference mark It may be configured with a sensor (not shown).

That is, the reference mark mounted on the Kreb main body 20 sliding along the rail 130 is sensed along a plurality of reference marks (not shown), and the corresponding negative plate 110 according to the detected signal You will be able to identify the location of.

According to the configuration as described above, the crab body 20 sliding on the rail 130 can accurately calculate and grasp the position of the corresponding negative plate 110 by the positioning member 40, and the corresponding negative plate 110 In the case of stopping at, the acceleration/deceleration member 50 reduces the sliding speed and stops at an accurate position within ±5mm.

Even while the speed is decelerating by the acceleration/deceleration member 50, the exact position of the corresponding negative plate 110 is continuously calculated by the positioning member 40.

Through such a process, it is possible to stop at an exact position, and even after stopping by deceleration, it is possible to prevent elements such as the coupling hole from vibrating.

In addition, the fastening state detection means 60 is able to detect the fastening state of the negative electrode plate 110 drawn out by the fastening hole 35.

The fastening state detection means 60 will be described with reference to FIG. 4.

As shown in the drawing, the fastening state detection means 60 is mounted on the horizontal frame 33 with a tilt sensor 65 for detecting the tilt state of the negative plate 110 fastened to the fastening hole 35 Has been.

The inclination sensor 65 can slide horizontally along the horizontal frame 33.

Therefore, in the figure, when the fastening hole 35 is normally fastened to the hook 120, the measured distance of the sliding inclination sensor 65 to the upper end of the negative electrode plate 110 is detected equally. 4 b)

However, when the negative electrode plate 110 is inclined due to a fall, the distance measured while sliding increases or decreases. (See a in FIG. 4)

That is, the control unit 200 can distinguish between a normal and a fall occurrence by a change in the distance measured by the inclination sensor 65.

A method of operating a crane device according to the present invention having the above configuration will be described with reference to FIG. 5.

As shown in the figure, when the crane device 10 starts to operate, the operation confirmation step (S10) of checking whether there is a work of pulling out the negative plate 110 is first proceeded.

And if there is a withdrawal operation in the operation confirmation step (S10), a sliding step (S20) in which the crab body 20 slides to a place where the negative electrode plate 110 is located is performed.

At this time, a positioning step (S30) of checking whether the corresponding negative plate 110 has reached within a set distance using the positioning member 40 is performed.

When it is confirmed that the distance between the cathode plate 110 and the crab body 20 reaches within a set distance in the positioning step (S30), a deceleration step of decelerating to a constant acceleration by the acceleration/deceleration member 50 ( S40) proceeds.

In the deceleration step (S40), when the crab body 20 decelerates and reaches the corresponding negative plate 110, the arrival confirmation step (S50) to check whether the position of the corresponding negative plate 110 to be drawn out and the correct position within ±5mm have been reached (S50). ) Proceeds.

Thereafter, when the crab body 20 reaches the corresponding negative electrode plate 110 in the arrival confirmation step (S50), the fastening hole 35 of the draw member 30 becomes the hook 120 of the corresponding negative plate 110 The binding step (S60) of binding to proceeds.

When the fastening port 35 is attached to the hook 120, a drawing step (S70) of drawing upward by the drawing member 30 is performed.

After the binding step (S60), a certain distance raising step (S110) of raising the negative electrode plate 110 upward by a certain distance is performed.

After the predetermined distance ascending step (S110), a binding confirmation step (S120) of confirming whether the negative plate is normally bonded by the fastening state detection means 60 is performed.

In the settlement confirmation step (S120), as shown in FIG. 4, it is possible to distinguish between a normal and a fall occurrence by a change in the distance measured by the inclination sensor 65 sliding horizontally in the horizontal frame 33. .

And if the binding is abnormally confirmed in the binding confirmation step (S120), the negative plate is lowered to terminate the binding, and then the binding hole 35 is again bound to the hook 120 of the negative plate 110. A rebinding step (S130) proceeding to the binding step (S60) is performed.

However, the rebinding step (S130) does not necessarily proceed, and when the binding is abnormally confirmed in the binding confirmation step (S120), a warning signal is transmitted to the control unit 200, and the operation may be stopped.

When the work is stopped in this way, the operator can be put in and observed with the naked eye to take necessary measures.

When the negative electrode plate 110 is normally attached to the fastening hole 35, a retreat step (S80) in which the crab body 20 slides to its original position while the negative electrode plate 110 is pulled out, and the retreat step (S80). ) After the separation step (S90) of separating the drawn out negative electrode plate 110 and the separation step (S90), the operation is returned.

What has been described above is for implementing the crane device for an electrolytic cell and a method of operation thereof according to the present invention, and is not limited to the above-described embodiments of the present invention, and deviates from the gist of the present invention as claimed in the following claims. Without this, anyone of ordinary skill in the field to which the present invention pertains will have the technical idea of the present invention to the extent that various modifications can be implemented.

10: crane device for electrolyzer, 20: crab body,
30: lead-out member, 31: vertical frame,
33: horizontal frame, 35: attachment,
40: positioning member, 50: acceleration/deceleration member,
60: fastening state detection means, 65: tilt sensor,
100: electrolyzer, 110: negative plate,
120: hook, 130: rail,
200: control unit, S10: operation confirmation step,
S20: sliding step, S30: positioning step,
S40: deceleration step, S50: arrival confirmation step,
S60: binding step, S70: withdrawal step,
S80: retreat step S90: separation step,
S110: constant distance increase step, S120: settlement confirmation step,
S130: rebinding step

Claims (13)

In the crane that is transferred from the top of the electrolyzer and pulls out the cathode plate,
A crab body mounted on the rail and sliding; A drawing member mounted on the crab body and drawing the negative electrode plate immersed in the electrolytic bath upward; And a location member for detecting a stop position of the crab body,
An acceleration/deceleration member configured to decelerate the sliding speed when the crab body approaches a stop position, or to control acceleration when starting the sliding from a stop state,
The acceleration/deceleration member uses a hydraulic brake,
The withdrawal member includes a pair of vertical frames vertically fixed to a lower portion of the crab body; A horizontal frame that is raised and lowered from the vertical frame; And a pair of fasteners seated on the horizontal frame and fastened or released with a pair of hooks of the negative electrode plate,
The positioning member measures the distance from the reference position to the crab body to calculate and identify each of the negative electrode plates,
The withdrawal member is provided with a fastening state detecting means for detecting a fastening state of the negative plate drawn out by the fastening hole,
The fastening state detecting means includes a tilt sensor for detecting a tilt state of the negative plate fastened to the fastening hole,
The inclination sensor can slide horizontally along the horizontal frame,
The crab body. The withdrawal member, the position member, the acceleration/deceleration member, and the fastening state detection means are controlled by a control unit,
The control unit is the crab body. The crane device for an electrolyzer, characterized in that connected by wireless to the withdrawal member, the position member, the acceleration/deceleration member, and the fastening state sensing means. delete delete delete delete delete delete delete delete delete In the method of operating a crane that is transferred from the top of the electrolyzer and pulls out the cathode plate,
An operation check step of checking whether there is an operation of pulling out the negative electrode plate;
A sliding step in which the crab body slides to a place where the negative electrode plate is located if there is a withdrawal operation in the operation confirmation step;
A positioning step of checking whether the corresponding negative plate has reached within a set distance by the positioning member;
A deceleration step of decelerating to a constant speed by an acceleration/deceleration member when it is confirmed that the arrival is within the distance set in the positioning step;
An arrival confirmation step of checking whether the corresponding negative plate to be drawn out has been reached;
When the crab body reaches the corresponding negative electrode plate in the arrival confirmation step, a binding step in which the binding hole of the drawing member is attached to the hook of the corresponding negative plate;
A drawing step of drawing upward by the drawing member when the fastening hole is attached to the hook;
A retreating step in which the crab body slides to its original position while the negative electrode plate is pulled out;
A separation step of separating the negative electrode plate drawn out after the retreating step; And
Including a return step in which the work is returned after the separation step,
A predetermined distance raising step of raising the negative electrode plate upward by a predetermined distance after the binding step;
A binding confirmation step of confirming whether the negative plate is normally bonded by the fastening state detecting means after the step of increasing the predetermined distance; And
In the case where the binding is abnormally confirmed in the binding confirmation step, the negative plate is lowered to terminate the binding, and thereafter, a re-binding step of proceeding to the binding step in which the binding hole is attached to the hook of the corresponding negative plate is performed. How to operate the crane device for electrolyzer.


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