Conductive device for electrolytic bath and capable of enhancing insulating property

Abstract

The utility model relates to the technical field of electrolysis production, in particular to a conductive device used for an electrolytic bath and capable of enhancing insulating property, which comprises a main conductive copper bar, an insulating plate and an auxiliary conductive bar which are sequentially stacked, and a plurality of conductive branch bars are arranged on one side of the auxiliary conductive bar. The conductive branch bar is used for abutting against the polar plate conductive rod and is electrically connected with the polar plate conductive rod; the insulating plate is provided with an insulating support plate, and the insulating support plate is arranged between the conductive branch bar and the main conductive copper bar to form insulating isolation; the part of the main conductive copper bar corresponding to the conductive branch bar is provided with a milling gap, and the part of the insulating support plate corresponding to the milling gap is provided with an insulating convex block, so that the insulating convex block is embedded into the milling gap, and the insulating performance between the main conductive copper bar and the conductive branch bar is enhanced. In conclusion, the phenomenon of short circuit or creepage between the main conductive copper bar and the auxiliary conductive bar or the conductive rod can be eliminated, the insulating performance can be improved, the service life of the insulating plate can be prolonged, and meanwhile the conductive performance of the copper bar is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic production, in particular to a conductive device used in an electrolytic cell and capable of enhancing insulation performance. Background Art

[0002] In the production process of electrolytic copper, the DC current flows in an orderly manner between the electrolytic cell and the plate through the inter-slot conductive device. However, the insulating plate and the copper busbar are in close contact. In the humid and corrosive environment of the electrolysis process, "creeping" or "short circuit" is prone to occur, which will cause the copper busbar to heat up and aggravate the aging of the insulating plate, thereby reducing production efficiency and shortening the service life of the insulating plate. Improving the insulation performance between the conductive copper busbar and the insulating plate can reduce the "creeping" or "short circuit" phenomenon occurring at the conductive busbar. Improving the insulation performance, material thickness and high temperature aging resistance of the insulating plate material itself is a direction of effort, but this will also lead to an increase in material costs. In addition, through structural optimization design, the insulation performance can also be improved and the service life of the insulating plate can be extended.

[0003] For example, a Chinese patent document with publication number CN202337843U discloses an electrolytic cell plate fixing device, including a cover plate, on which are arranged staggered through slots and grooves for placing the conductive ears of the cathode plate and the anode plate, and whose positions correspond to the cathode plate and the anode plate in the electrolytic cell. The utility model is provided with staggered through slots and grooves on the cover plate, so that the conductive ears of the cathode plate and the anode plate in the electrolytic cell are staggered in the through slots and grooves, and staggeredly connected to the conductive copper busbar for conduction or insulation, thus overcoming the short circuit caused by the contact between the cathode plate and the anode plate due to the shaking of the artificial scraping powder, which not only ensures the electrolysis process requirements, but also facilitates loading and unloading, saving time and effort.

[0004] At present, the bosses on both sides of the conductive bar are either continuous without milling notches, or with milling notches, but only the boss part is milled, and the copper plate under the boss is still retained. The insulating plate is close to the copper plate at the notch. The thickness of the insulating plate is relatively thin. During the slotting process, the plate may hit the insulating plate, which will cause cracks and electrolyte infiltration (the electrolyte is conductive), causing a short circuit or "creeping" between the main conductive copper bar and the auxiliary copper bar or the plate conductive rod between the upper and lower insulating plates. This seriously affects the insulation performance and reduces the service life of the insulating plate. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] The utility model provides a conductive device for an electrolytic cell and having enhanced insulation performance, comprising a main conductive copper bar, an insulating plate and an auxiliary conductive bar which are stacked in sequence from bottom to top, wherein a plurality of conductive branch bars are arranged on one side of the auxiliary conductive bar, and the conductive branch bars are used to abut against and form an electrical connection with a plate conductive rod; the insulating plate is provided with an insulating branch plate, and the insulating branch plate is installed between the conductive branch bar and the main conductive copper bar, thereby forming insulation isolation between the two; a milling notch is provided at a position of the main conductive copper bar corresponding to the conductive branch bar, and an insulating protrusion is provided at a position of the insulating support plate corresponding to the milling notch, so that the insulating protrusion is embedded in the milling notch, thereby enhancing the insulation performance between the main conductive copper bar and the conductive branch bar.

[0007] As a further solution of the utility model: a plurality of conductive bumps are respectively provided on both sides of the main conductive copper bar, and the conductive bumps are used to abut against the plate conductive rods and form an electrical connection therewith; the plurality of conductive bumps of the main conductive copper bar and the plurality of conductive branches of the auxiliary conductive bar are arranged to be spaced and crossed with each other in the long side direction of the insulating plate, thereby respectively cross-electrically connecting the anode plate conductive rods and / or the cathode plate conductive rods.

[0008] As a further solution of the utility model: an inwardly recessed clearance groove is provided on the insulating plate at a position corresponding to the conductive protrusion, so that the conductive protrusion can be inserted into the clearance groove; the side wall of the clearance groove protrudes upward by a certain height to form an insulating height-enhancing wall, which is used to enhance the insulation performance between the main conductive copper busbar and the auxiliary conductive busbar.

[0009] As a further solution of the utility model: it also includes a rubber pad, which is arranged below the main conductive copper bar and abuts against the main conductive copper bar, and the insulating protrusion passes through the milling notch and abuts against the rubber pad.

[0010] As a further solution of the utility model: the thickness of the insulating protrusion inserted downward into the milling notch is greater than the thickness of the main conductive copper busbar, thereby forming a gap space between the bottom of the insulating plate and the top of the main conductive copper busbar, thereby preventing the bottom of the insulating plate from directly contacting the top of the main conductive copper busbar.

[0011] As a further solution of the utility model: an insulating strip is provided in the upper middle position of the insulating plate along its long side direction, and a first auxiliary conductive bar and a second auxiliary conductive bar are respectively installed on both sides of the insulating strip. The first auxiliary conductive bar is used to electrically connect the electrode plate conductive rods in the first electrolytic cell, and the second auxiliary conductive bar is used to electrically connect the electrode plate conductive rods in the second electrolytic cell.

[0012] As a further solution of the utility model: both ends of the insulating plate are provided with insulating short strips along the short side direction thereof, and the insulating short strips are used to insulate and isolate the conductive bumps between the two insulating plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting a milling notch on the main conductive copper bar, the main conductive copper bar is provided under the conductive branch bar, which eliminates the short circuit or "creeping" phenomenon between the upper and lower main copper bars and the auxiliary copper bars or conductive rods caused by the infiltration of electrolyte due to cracks in the insulating plate.

[0015] 2. Insulating bumps can also be provided at the milling notches to increase the thickness of the insulating board at this location, so that the insulating board has better high temperature resistance and insulation performance, and the service life of the insulating board can be greatly extended.

[0016] 3. Since both sides of the main conductive copper bar are provided with milling notches, and the corresponding positions on both sides of the insulating plate are also provided with insulating protrusions, the milling notches and insulating protrusions at the corresponding positions on both sides cooperate with each other to form front, back, left and right limit operations for the insulating plate, making the installation of the insulating plate more convenient and quick, and improving the installation efficiency. At the same time, the insulating plate will not be displaced during use, thereby improving its stability.

[0017] 4. Moreover, by setting the milling notch and the insulating protrusion, the use of the more expensive copper material is reduced, and only the material usage of the less expensive insulating plate is increased, thereby reducing the overall manufacturing cost of the conductive device.

[0018] Therefore, through the above-mentioned improvements, the utility model can provide a conductive device for an electrolytic cell with enhanced insulation performance, that is, it can eliminate the short circuit or "creeping" phenomenon between the main conductive copper busbar and the auxiliary conductive busbar or conductive rod, and can improve the insulation performance and increase the service life of the insulating plate, while not affecting the conductive performance of the copper busbar.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the shaft side state of the utility model;

[0022] Figure 2 It is a schematic diagram of the top view of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the main conductive copper busbar of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the gap space of the utility model;

[0025] Figure 5 It is a schematic cross-sectional view of the entirety of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the insulation board of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the utility model in a separated state.

[0028] The reference numerals and names in the figures are as follows:

[0029] 10 main conductive copper busbar; 11 milling notch; 12 conductive protrusion; 13 gap space; 20 insulating plate; 21 insulating support plate; 22 insulating protrusion; 23 recess; 24 insulating heightening wall; 25 insulating long strip; 26 insulating short strip; 30 auxiliary conductive busbar; 31 conductive support busbar; 40 rubber pad. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 7 In an embodiment of the utility model, a conductive device for an electrolytic cell and enhancing insulation performance includes a main conductive copper bar 10, an insulating plate 20 and an auxiliary conductive bar 30 stacked in sequence from bottom to top, a plurality of conductive branch bars 31 are provided on one side of the auxiliary conductive bar 30, and the conductive branch bars 31 are used to abut against the plate conductive rod (not shown in the figure) and form an electrical connection therewith; the insulating plate 20 is provided with an insulating support plate 21, and the insulating support plate 21 is spaced between the conductive branch bar 31 and the main conductive copper bar 10, thereby forming an insulation isolation between the two; the main conductive copper bar 10 is provided with a milling notch 11 at a position corresponding to the conductive branch bar 31, and the insulating support plate 21 is provided with an insulating protrusion 22 at a position corresponding to the milling notch 11, so that the insulating protrusion 22 is embedded in the milling notch 11, thereby enhancing the insulation performance between the main conductive copper bar 10 and the conductive branch bar 31.

[0032] Specifically, a milling notch 11 penetrating the copper plate is milled on the main conductive copper busbar 10 of the conductive device of the electrolytic cell, and the insulating protrusion 22 of the insulating plate 20 is embedded in the milling notch 11. The thickness of the milled copper busbar is transferred to the insulating plate 20, thereby improving the insulation performance of the insulating plate 20. At the same time, the copper busbar notch can also limit the movement of the insulating plate 20, and make the main conductive copper busbar 10 absent under the insulating plate 20 at the contact point of the electrode plate conductive rod, thereby completely preventing the short circuit or "creeping" phenomenon between the upper and lower main copper busbars and the auxiliary copper busbars or the electrode plate conductive rods.

[0033] Secondly, the insulating protrusion 22 of the insulating plate 20 can be embedded in the milling notch 11 milled by the main conductive copper bar 10, so that the insulating plate 20 is well positioned on the copper bar and can be limited in front, back, left and right. There is no conductive copper bar under the insulating plate 20 at the contact point of the plate conductive rod, so naturally there will be no short circuit or "creeping" here.

[0034] Thirdly, the main conductive copper bar 10 under the contact point of the plate conductive rod is milled through, so that the insulating plate 20 is directly in contact with the rubber pad 40 below, and the place where the insulating plate 20 is subjected to the greatest force is thickened, so that it has better strength, withstands the impact load of the plate conductive rod, and greatly extends the service life of the insulating plate 20. By designing and controlling the thickness of the insulating plate 20 at the contact point, a certain gap can be formed between the insulating plate 20 and the copper bar above the copper bar, so that they do not contact each other, further preventing the heat of the main conductive copper bar 10 from being conducted to the insulating plate 20, which can reduce the temperature of the insulating plate 20, improve its insulation performance, and extend its service life.

[0035] like Figures 1 to 3 As shown, preferably, a plurality of conductive protrusions 12 are respectively provided on both sides of the main conductive copper bus 10, and the conductive protrusions 12 are used to abut against the plate conductive rods and form an electrical connection therewith; the plurality of conductive protrusions 12 of the main conductive copper bus 10 and the plurality of conductive branch bars 31 of the auxiliary conductive bar 30 are arranged to be spaced and cross-arranged with each other in the long side direction of the insulating plate 20, so as to cross-electrically connect the anode plate conductive rods and the cathode plate conductive rods respectively.

[0036] Specifically, for example, in the production process of electrolytic copper, the electrode conductive rods need to be spaced apart to form anodes and cathodes. Therefore, the conductive bumps 12 and the conductive branches 31 can be spaced apart and cross-arranged, respectively, so as to form a situation where the anodes and cathodes cross each other, thereby realizing the circuit connection method required in the electrolytic copper process.

[0037] like Figures 5 to 7Preferably, an inwardly recessed clearance groove 23 is provided on the insulating plate 20 at a position corresponding to the conductive protrusion 12, so that the conductive protrusion 12 can be inserted into the clearance groove 23; the side wall of the clearance groove 23 protrudes upward by a certain height to form an insulating heightening wall 24, which is used to enhance the insulation performance between the main conductive copper bus 10 and the auxiliary conductive bus 30.

[0038] Specifically, in order to further enhance the insulation performance between the main conductive copper bus 10 and the auxiliary conductive bus 30, and between the conductive protrusion 12 and the conductive branch bus 31, a clearance groove 23 can be provided, and the side wall of the clearance groove 23 can be provided to protrude to a certain height to form an insulating heightening wall 24, thereby increasing the thickness and height of the insulating plate 20 between the conductive protrusion 12 and the conductive branch bus 31, and further enhancing the insulation performance of the insulating plate 20.

[0039] like Figure 4 and Figure 7 As shown, preferably, a rubber pad 40 is further included. The rubber pad 40 is disposed below the main conductive copper bar 10 and abuts against the main conductive copper bar 10 . The insulating protrusion 22 passes through the milling notch 11 and abuts against the rubber pad 40 .

[0040] Specifically, in order to enhance the insulation performance between the main conductive copper busbar 10 and the external electrolytic cell, a rubber pad 40 may be additionally provided, and the bottom of the insulating protrusion 22 of the insulating plate 20 may also abut against the rubber pad 40, thereby improving its insulation performance.

[0041] like Figure 4 and Figure 5 As shown, preferably, the thickness of the insulating protrusion 22 inserted downward into the milling notch 11 is greater than the thickness of the main conductive copper busbar 10, thereby forming a gap space 13 between the bottom of the insulating plate 20 and the top of the main conductive copper busbar 10, thereby preventing the bottom of the insulating plate 20 from directly contacting the top of the main conductive copper busbar 10.

[0042] Specifically, the thickness of the insulating protrusion 22 extending downward can be set to be greater than the thickness of the main conductive copper busbar 10, so as to support the entire insulating plate 20 and form a gap space 13 after being separated from the main conductive copper busbar 10, thereby further enhancing the insulation performance.

[0043] like Figure 5 and Figure 6As shown, preferably, an insulating strip 25 is provided at the middle position of the upper part of the insulating plate 20 along its long side direction, and a first auxiliary conductive bar 30 and a second auxiliary conductive bar 30 are respectively installed on both sides of the insulating strip 25. The first auxiliary conductive bar 30 is used to electrically connect the plate conductive rods in the first electrolytic cell, and the second auxiliary conductive bar 30 is used to electrically connect the plate conductive rods in the second electrolytic cell. Insulating short strips 26 are respectively provided at both ends of the insulating plate 20 along its short side direction, and the insulating short strips 26 are used to limit and insulate the conductive protrusions 12 between the two insulating plates 20.

[0044] Specifically, since the conductive device is installed on the partition plate between the two electrolytic cells, its two sides need to be electrically connected to the plate conductive bars in the two electrolytic cells respectively. Therefore, the first auxiliary conductive bar 30 and the second auxiliary conductive bar 30 need to be installed on both sides of the insulating plate 20 respectively. In order to form an insulation effect between the first auxiliary conductive bar 30 and the second auxiliary conductive bar 30, an insulating strip 25 can be set in the middle of the insulating plate 20.

[0045] Secondly, since the main conductive copper bus 10 is relatively thick and can be set to a relatively long length, while the insulating plate 20 and the auxiliary conductive bus 30 are usually set to a relatively short length, a plurality of insulating plates 20 and auxiliary conductive bus 30 are sequentially installed on a long main conductive copper bus 10. Therefore, short insulating strips 26 can be set at both ends of the insulating plate 20 to insulate the conductive bumps 12 at both ends, thereby further improving the insulation performance of the conductive device.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A conductive device for an electrolytic cell and enhancing insulation performance, characterized in that: The invention comprises a main conductive copper bar (10), an insulating plate (20) and an auxiliary conductive bar (30) which are stacked in sequence from bottom to top; a plurality of conductive branch bars (31) are provided on one side of the auxiliary conductive bar (30); the conductive branch bars (31) are used to abut against and form an electrical connection with a plate conductive bar; the insulating plate (20) is provided with an insulating support plate (21); the insulating support plate (21) is installed between the conductive branch bar (31) and the main conductive copper bar (10), thereby forming an insulation isolation between the two; a milling notch (11) is provided at a position of the main conductive copper bar (10) corresponding to the conductive branch bar (31); an insulating protrusion (22) is provided at a position of the insulating support plate (21) corresponding to the milling notch (11); the insulating protrusion (22) can be embedded in the milling notch (11).

2. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 1, characterized in that: A plurality of conductive bumps (12) are respectively provided on both sides of the main conductive copper bar (10), and the conductive bumps (12) are used to abut against and form an electrical connection with the electrode plate conductive bars; the conductive bumps (12) of the main conductive copper bar (10) and the conductive branch bars (31) of the auxiliary conductive bar (30) are arranged to cross each other in the long side direction of the insulating plate (20).

3. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 2, characterized in that: An inwardly recessed clearance groove (23) is provided on the insulating plate (20) at a position corresponding to the conductive protrusion (12), so that the conductive protrusion (12) can be inserted into the clearance groove (23); the side wall of the clearance groove (23) protrudes upward by a certain height to form an insulating height-enhancing wall (24).

4. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 1, characterized in that: It also includes a rubber pad (40), which is arranged below the main conductive copper bar (10) and abuts against the main conductive copper bar (10), and the insulating protrusion (22) passes through the milling notch (11) and abuts against the rubber pad (40).

5. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 1, characterized in that: The thickness of the insulating protrusion (22) inserted downward into the milling notch (11) is greater than the thickness of the main conductive copper busbar (10), thereby forming a gap space (13) between the bottom of the insulating plate (20) and the top of the main conductive copper busbar (10), thereby preventing the bottom of the insulating plate (20) from directly contacting the top of the main conductive copper busbar (10).

6. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 1, characterized in that: An insulating strip (25) is provided at the middle position of the upper part of the insulating plate (20) along its long side direction, and a first auxiliary conductive bar (30) and a second auxiliary conductive bar (30) are respectively installed on both sides of the insulating strip (25), wherein the first auxiliary conductive bar (30) is used to electrically connect to the plate conductive bar in the first electrolytic cell, and the second auxiliary conductive bar (30) is used to electrically connect to the plate conductive bar in the second electrolytic cell.

7. A conductive device for an electrolytic cell with enhanced insulation performance according to claim 2, characterized in that: Insulating short strips (26) are respectively provided at both ends of the insulating plate (20) along the short side direction thereof, and the insulating short strips (26) are used to insulate and isolate the conductive bumps (12) between the two insulating plates (20).

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