KR20200069567A - Crane for electrolytic cell and the operating method - Google Patents

Abstract

The present invention relates to a crane apparatus for an electrolytic cell. The crane apparatus comprises: a crab body mounted on rails to slide; a drawing member mounted on the crab body to upwardly draw cathode plates immersed in an electrolytic cell; a positioning member for detecting a stop position of the crab body; and an acceleration and deceleration member for reducing sliding speed when the crab body approaches the stop position, or controlling acceleration when the same starts to slide in a stop state, wherein the drawing member further includes a fastening state detection means for detecting a fastened state of the cathode plates drawn by a fastener. Therefore, the crane apparatus can correctly stop at a position of a corresponding cathode plate by the position member and the acceleration and deceleration member, and can particularly prevent a short circuit from occurring as the cathode plate makes contact with neighboring other anode plates or the electrolytic cell in a process for drawing the cathode plate from the electrolytic cell by the fastening state detection means.

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 drawing out and transporting a negative electrode plate immersed in an electrolytic cell, and more particularly, to a crane device for an electrolytic cell and a method of operating the same, which can solve various problems that may occur during the extraction process.

Electrolysis generally refers to electrolysis, which refers to a phenomenon in which chemical ions, such as the generation of gas or the deposition of metals, are generated when ion is ionized in the liquid and is transferred to the negative and positive electrodes by passing an electric current through the electrolyte. , Electrolytic smelting is performed by extracting and purifying a metal having a particularly high purity using this phenomenon.

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

That is, the plurality of electrode plates disposed in the electrolytic cell are connected to each other by alternately connecting the negative electrode and the positive electrode to be ionized in the electrolyte, for example, Zn2+, Cu2+, etc. are moved to the negative electrode plate side to which negative current is applied, and the purity is electrodeposited. A reduction action in which high zinc or copper is precipitated is performed, and an oxidation action such as generation of cations and generation of oxygen is performed on the side of the anode plate cross-exposed adjacent to the cathode plate.

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

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

Document 1: Registered Patent Publication No. 10-0629171 (announced on September 27, 2006) "A driving method for detecting a position, an apparatus, and a crane system having the same. Document 2: Registered Patent Publication No. 10-0732913 (announced on June 29, 2007) "Stop position induction method and apparatus and crane system having the same" Document 3: Published Patent Publication No. 2001-0073546 (published on Aug. 01, 2001) "Anode for smelting electrolysis"

The cathode plate used in this process is generally withdrawn from the electrolytic cell once every 24 hours to obtain a pure metal by peeling the electrodeposited metal on the cathode plate.

However, in the process of withdrawing the negative electrode plate from the electrolytic cell, the operator directly checks whether the crane's fastener and the negative electrode plate's hook are properly engaged.

If the negative electrode plate is not properly connected to the crane's fastener, the negative electrode plate does not rise vertically from the electrolytic cell, and there is a problem that short circuit may occur due to collision with other positive electrode plates or the electrolytic cell. There is a problem that adds.

In addition, the speed at which the crane slides from the rail to withdraw the negative electrode plate maintains a speed of about 120 m/min. At this time, since the weight of the crane is considerable, it cannot be stopped at a designated position at one time, and the position is adjusted while moving back and forth.

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

Currently, in this case, the operator manually switches the crane from automatic to manual operation to move the crane to a predetermined position, which causes a process delay.

Therefore, the present invention was devised to solve the problems as described above, and the object of the present invention is that the crane can be stopped precisely at the position of the negative electrode plate, and that the fastener is vibrated 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 electrolytic cell that can prevent a short circuit from being generated while being in contact with another anode plate or an electrolytic cell in the process of withdrawing the cathode plate from the electrolytic cell.

The above object is achieved by the present invention, and according to an aspect of the present invention, the crane device for the electrolyzer is mounted on a rail and slid to a crab body; A drawing member mounted on the crab body and drawing a negative electrode plate immersed in an electrolytic cell upward; And it characterized in that it comprises a position member for detecting the stop position of the crab body.

In addition, when the crab body is close to the stop position, the acceleration/deceleration member for decelerating the slide speed or controlling acceleration when starting the slide in the stopped state is further configured.

In addition, the acceleration/deceleration member is characterized by using a hydraulic brake.

According to another aspect of the invention, the drawing member is a pair of vertical frames that are vertically fixed to the lower portion of the crab body; A horizontal frame that is vertically elevated from the vertical frame; It is characterized in that it is composed of a pair of fasteners that are seated on the horizontal frame and fasten or terminate with a pair of hooks of the negative electrode plate.

In the present invention, the position member is characterized by measuring the distance from the reference position to the crab body to calculate and identify each of the negative electrode plates.

According to another aspect of the present invention, the position member is characterized in that it comprises a plurality of reference marks corresponding to each negative electrode plate and a position sensor mounted on the crab body to identify each of the reference marks.

According to another aspect of the present invention, the drawing member is characterized in that it is further provided with a fastening state detecting means for detecting the fastening state of the negative electrode plate drawn out by the fastener.

And the fastening state detecting means is characterized in that it comprises a tilt sensor for detecting the tilting state of the negative electrode plate fastened to the fastener.

According to another aspect of the invention, the crab body. The take-out member, the position member, the acceleration/deceleration member and the fastening detecting means are controlled by a control unit.

And the control unit is the crab body. It is characterized in that the withdrawal member, the position member, the acceleration/deceleration member and the fastening detecting means are wirelessly connected.

According to another aspect of the present invention, an operation method of a crane device for an electrolyzer includes: an operation confirmation step of confirming whether there is a work of drawing out a negative electrode plate; A sliding step in which the crab body slides to a place where the negative electrode plate is located when a withdrawal operation is present in the operation checking step; A positioning step of checking whether the corresponding cathode plate has reached within a predetermined distance by the positioning member; A deceleration step of decelerating at a constant speed by the acceleration/deceleration member when the arrival is confirmed within a set distance in the positioning step; An arrival confirmation step of checking whether the corresponding cathode plate to be withdrawn is reached; A binding step in which the binding hole of the drawing member is attached to the hook of the cathode plate when the crab body reaches the cathode plate in the arrival confirmation step; A withdrawal step of withdrawing the upper portion by the withdrawal member when the fastener is attached to the hook; A retraction step in which the crab body slides to its original position in the state in which the negative electrode plate is withdrawn; A separation step of separating the negative electrode plate drawn out after the retreating step; And a return step in which the operation is returned after the separation step.

According to another aspect of the invention, after the binding step, a constant distance rising step of raising the cathode plate to a certain distance upward; A binding confirmation step of checking whether the negative electrode plate is properly attached by the fastening detecting means after the predetermined distance rising step; And if the binding is abnormally confirmed in the binding confirmation step, the negative electrode plate is lowered, the binding is terminated, and thereafter, the re-binding step proceeds to the binding step in which the binding hole is attached to the hook of the negative electrode plate. It is characterized by progress.

According to another aspect of the present invention, a rising step of raising the cathode plate to a certain distance upward after the binding step; A binding confirmation step of checking whether the negative electrode plate is properly attached by the fastening detecting means after the rising step; And when the binding is abnormally confirmed in the binding confirmation step, a warning signal is transmitted to the control unit and the operation is stopped.

According to the above configuration of the present invention, the crane device can be stopped precisely at the position of the negative electrode plate by the position member and the acceleration/deceleration member, and also prevents the fastener from vibrating back and forth in the process of stopping. The effect can be made.

In addition, in the process of drawing the negative electrode plate out of the electrolytic cell by the fastening detecting means and the binding confirmation step, an effect of preventing short circuit from being generated while contacting other positive electrode plates or electrolytic cells in the vicinity occurs.

1 is a plan view of a mounted state of the crane for the electrolyzer of the present invention.
Figure 2 is a block diagram of the crane shown in Figure 1;
3 is a view for explaining the drawing member shown in FIG. 2;
4 is a view for explaining the fastening detecting means.
5 is a flow chart for explaining the operation of the crane.

Hereinafter, preferred embodiments of the present invention will be described 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 a mounted state that is an electrolytic cell crane of the present invention, and FIG. 2 is a configuration diagram of the crane shown in FIG. 1.

As shown in the drawing, the crane device for an electrolyzer according to the present invention shown by reference numeral 10 is a crab body 20, a drawing member 30, a position member 40, an acceleration/deceleration member 50 and a fastening detecting means. 60.

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

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

The drawing member 30 is a member mounted on the crab body 20 and drawing the negative electrode plate 110 immersed in the electrolytic cell 100 upward.

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

As shown in the figure, the drawing member 30 is fixed to a pair of vertical frames 31 that are vertically fixed to the lower portion of the crab body 20. The horizontal frame 33 is raised and lowered in the vertical frame 33. In addition, the fastener 35 is seated on the horizontal frame 33 to fasten or cancel the pair of hooks 120 formed on the negative electrode plate 110.

That is, the pair of fasteners 35 are combined with a pair of hooks 120 formed on the negative electrode plate 110, and the horizontal frame 33 is lifted to rise.

In addition, the acceleration/deceleration member 50 is a member that controls the acceleration when the crab body 20 approaches the stop position to decelerate the slide speed or to start the slide in the stopped state. When decelerating the speed of the crab body 20, a hydraulic brake may be used.

In addition, the position member 40 is a member for detecting the stop position of the crab body (20).

The position member 40 can be identified by calculating the position of each cathode plate 110 by measuring the distance from the reference position to the crab body 20.

That is, as shown in Figure 3, the control unit 200 is a built-in control device is fixed, the rail body 130 slides from the crab body 20 is away from or closer to the control device (control unit, 200) At this time, the control device can calculate the distance from the crab body 20 to determine the positions of the cathode plate 110 and the crab body 20.

The position member 40 according to another method of the present invention is mounted on a plurality of reference marks (not shown) corresponding to each cathode plate 110 and the crab body 20 to identify each of the reference marks It may be composed of 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 the reference marks (not shown), and the corresponding cathode plate 110 according to the detected signal. Will be able to identify the location of

According to the configuration as described above, the crab body 20 slided from the rail 130 can accurately calculate and understand the position of the negative electrode plate 110 by the positioning member 40, and the corresponding negative electrode plate 110 In the case of stopping at, the slide speed is decelerated by the acceleration/deceleration member 50 to stop at an accurate position within ±5mm.

While the speed is decelerated by the acceleration/deceleration member 50, the correct position of the cathode plate 110 is continuously calculated by the position member 40.

Through this process, it is possible to stop at the correct position, and even after being stopped by deceleration, it is possible to prevent an element such as the fastener from vibrating.

In addition, the fastening state detecting means 60 can detect the fastening state of the negative electrode plate 110 drawn out by the fastener 35.

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

As shown in the figure, the fastening state detecting means 60 is equipped with an inclination sensor 65 that detects the inclined state of the negative electrode plate 110 fastened to the fastener 35 to the horizontal frame 33. It is.

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

Therefore, when the fastener 35 is normally attached to the hook 120 in the drawing, the inclined sensor 65 that slides is sensed the same as the measured distance from the upper end of the negative electrode plate 110 (FIG. 4, b)

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

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

The operation method of the 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, an operation confirmation step (S10) of checking whether there is a work for drawing out the negative electrode plate 110 is performed first.

Then, in the operation confirmation step (S10), if a withdrawal operation exists, the 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, by using the positioning member 40, a positioning step (S30) is performed to check whether the corresponding cathode plate 110 has reached within a predetermined distance.

In the positioning step (S30), if the distance between the cathode plate 110 and the crab body 20 is confirmed to reach within a set distance, the 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 reaches the corresponding cathode plate 110 while decelerating, the arrival confirmation step (S50) to confirm that the position of the cathode plate 110 to be withdrawn and the correct position within ±5mm is reached. ) Proceeds.

Thereafter, when the crab body 20 reaches the corresponding cathode plate 110 in the arrival confirmation step (S50), the fastener 35 of the withdrawal member 30 hooks 120 of the cathode plate 110 The binding step (S60) for binding to is performed.

When the fastener 35 is attached to the hook 120, a withdrawal step (S70) of drawing out the upper portion by the drawing member 30 is performed.

After the bonding step (S60), a constant distance rising step (S110) of raising the cathode plate 110 to a certain distance upward is performed.

After the predetermined distance rising step (S110), a binding confirmation step (S120) is performed to check whether the negative electrode plate is properly attached by the fastening detecting means (60).

In the attaching confirmation step (S120), as shown in FIG. 4, the inclination sensor 65, which slides horizontally in the horizontal frame 33, can distinguish a normal from the occurrence of a fall by a change in the distance measured. .

Then, when the binding is abnormally confirmed in the binding confirmation step (S120), the cathode plate is lowered to terminate the binding, and then the binding hole 35 is again attached to the hook 120 of the cathode plate 110. The re-binding step (S130) proceeding to the binding step (S60) is performed.

However, if the re-seating step (S130) is not necessarily performed, and if 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 worker is put in and it is possible to observe the naked eye and take necessary measures.

When the negative electrode plate 110 is normally attached to the fastener 35, the retracting step (S80) and the retreating step (S80) in which the crab body 20 slides to the original position while the negative electrode plate 110 is pulled out ) After the separation step (S90) and the separation step (S90) for separating the withdrawn negative electrode plate 110, the operation is returned.

What has been described above is for carrying out the crane device for an electrolyzer according to the present invention and an operation method thereof, 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 skilled in the art to which the present invention pertains will have the technical idea of the present invention to the extent that various changes can be implemented.

10: electrolytic cell crane device, 20: crab body,
30: withdrawal member, 31: vertical frame,
33: horizontal frame, 35: fastener,
40: position member, 50: acceleration/deceleration member,
60: fastening detection means, 65: tilt sensor,
100: electrolytic cell, 110: negative electrode plate,
120: hook, 130: rail,
200: control unit, S10: operation check step,
S20: Slide step, S30: Positioning step,
S40: Deceleration stage, S50: Reach confirmation stage,
S60: binding stage, S70: withdrawal stage,
S80: retraction step S90: separation step,
S110: constant distance ascending stage, S120: binding confirmation stage,
S130: Re-seating step

Claims (13)

In the crane that is transferred from the top of the electrolytic cell and withdraws the negative electrode plate,
A crab body mounted on a rail and sliding;
A drawing member mounted on the crab body and drawing a negative electrode plate immersed in an electrolytic cell upward; And
Crane device for the electrolyzer, characterized in that it comprises a position member for detecting the stop position of the crab body. The crane device for an electrolyzer according to claim 2, further comprising an acceleration/deceleration member for controlling acceleration when decelerating the sliding speed when the crab body approaches the stop position or when starting the sliding in the stopped state. . 3. The crane device for an electrolyzer according to claim 2, wherein the acceleration/deceleration member uses a hydraulic brake. According to claim 3, The drawing member is a pair of vertical frames that are vertically fixed to the lower portion of the crab body; A horizontal frame that is vertically elevated from the vertical frame; Crane device for the electrolyzer, characterized in that it consists of a pair of fasteners that are fastened to or released from a pair of hooks of the cathode plate seated on the horizontal frame. The crane device for an electrolyzer according to claim 4, wherein the position member calculates and identifies each of the cathode plates by measuring a distance from a reference position to the crab body. The crane device for an electrolyzer according to claim 4, wherein the position member is composed of a plurality of reference marks corresponding to each negative electrode plate and a position sensor mounted on the crab body to identify each of the reference marks. The crane device for an electrolyzer according to claim 4, wherein the withdrawal member is further provided with a fastening state detecting means for detecting a fastening state of the negative electrode plate drawn out by the fastener. The crane device for an electrolyzer according to claim 7, wherein the fastening state detection means includes an inclination sensor that detects a tilt state of the negative electrode plate fastened to the fastener. 9. The crab body according to claim 8. The withdrawal member, the position member, the acceleration/deceleration member and the fastening detection means are controlled by a control unit electrolytic cell crane device. 10. The method of claim 9, The control unit is the crab body. The withdrawal member, the position member, the acceleration and deceleration member and the fastening detecting means, characterized in that the wireless connection to the crane device for the electrolyzer. In the operation method of the crane to be transferred from the top of the electrolytic cell and withdraw the negative plate,
An operation checking step of confirming whether there is a work of drawing out the negative electrode plate;
A sliding step in which the crab body slides to a place where the negative electrode plate is located when a drawing operation is performed in the operation checking step;
A positioning step of checking whether the corresponding cathode plate has reached within a predetermined distance by the positioning member;
A deceleration step of decelerating to a constant speed by the acceleration/deceleration member when the arrival is confirmed within a distance set in the positioning step;
An arrival confirmation step of checking whether the corresponding cathode plate to be withdrawn is reached;
A binding step in which the binding hole of the drawing member is attached to the hook of the cathode plate when the crab body reaches the cathode plate in the arrival confirmation step;
A withdrawal step of withdrawing the upper portion by the withdrawal member when the fastener is attached to the hook;
A retraction step in which the crab body slides to its original position in the state in which the negative electrode plate is withdrawn;
A separation step of separating the negative electrode plate drawn out after the retreating step; And
And a return step in which the work is returned after the separating step. 12. The method of claim 11, After the binding step, a constant distance rising step of raising the cathode plate to a certain distance upward;
A binding confirmation step of checking whether the negative electrode plate is properly attached by the fastening detecting means after the predetermined distance rising step; And
When the binding is abnormally confirmed in the binding confirmation step, the negative electrode plate is lowered to terminate the binding, and thereafter, the re-binding step proceeds further to the binding step in which the binding hole is attached to the hook of the corresponding negative plate. Method of operation of the crane device for the electrolyzer, characterized in that. 12. The method of claim 11, After the binding step, a rising step of raising the cathode plate to a certain distance upward;
A binding confirmation step of checking whether the negative electrode plate is properly attached by the fastening detecting means after the rising step; And
When the binding is abnormally confirmed in the binding confirmation step, a warning signal is transmitted to the control unit, and the operation method of the crane device for an electrolytic cell is characterized in that the operation is stopped.

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