CN218666326U

CN218666326U - Bipolar graphite plate

Info

Publication number: CN218666326U
Application number: CN202223143358.9U
Authority: CN
Inventors: 王刚; 许伟春; 魏伟; 郭春伟; 孙朝辉
Original assignee: Luoyang Sunrui Titanium Precision Casting Co Ltd
Current assignee: Luoyang Sunrui Titanium Precision Casting Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-21
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a bipolar graphite plate, including graphite plate and fixed pin, the graphite plate is installed on the bottom surface of electrolysis trough, the graphite plate includes first curb plate and second curb plate, be provided with the installation department on the graphite plate, the bottom surface of installation department perpendicular to electrolysis trough, the installation department includes first installation department and second installation department, first installation department sets up on first curb plate, and the second installation department sets up on the second curb plate, the fixed pin is installed and is used for linking together first curb plate and second curb plate in the installation department, the one end and the first installation department joint of fixed pin, the other end and second installation department joint, this application bipolar graphite plate, simple structure, installation are convenient, have shortened installation cycle, and can directly assemble in the electrolysis trough, need not frequent handling, have reduced the breakage rate of bipolar graphite plate, can also improve the concatenation firmness of first curb plate and second curb plate, avoid graphite plate fracture in use.

Description

Bipolar graphite plate

Technical Field

The utility model relates to a non ferrous metal smelting equips technical field, particularly, relates to a bipolar graphite board.

Background

The multipolar tank is that increase a plurality of conductive polar plates between every group positive pole of unipolar electrolysis cell and negative pole to increase electrically conductive area, improve electrolytic capacity, a plurality of conductive polar plates of increase are bipolarity, promptly: the side near the anode is of cathode polarity and the side near the cathode is of anode polarity. The multi-electrode cell technology has the advantages of high single-cell productivity, low energy consumption, high product quality, good environmental protection effect, low electrolyte loss rate, high production capacity regulation elasticity and the like, so the technology is the most advanced magnesium preparation technology matched with titanium sponge production in the world at present.

The bipolar plate is composed of an upper side plate and a lower side plate, is bonded and solidified by imported carbon glue, is positioned and fixed by a fixing pin, and is finally hoisted into a multi-pole groove for installation and commissioning. The bipolar plate is a core component of the multi-polar groove for improving the productivity and the quality and saving the energy consumption; however, the following problems also exist in use:

1) The bipolar plate is easy to scrap due to damage, and is of a wide thin plate structure, so that the bipolar plate is easy to damage and break when uneven stress is applied; in addition, the carbon glue has high use standard and is unevenly coated, so that the bonding seams of the carbon glue are broken due to uneven stress;

2) The carbon glue is not easy to purchase and has higher unit price, the carbon glue used at present is imported product, is limited by external environmental factors, is difficult to arrive at the goods on time after purchase, and seriously influences the standby of the electrolytic cell; the unit price of the carbon rubber is higher, and the use cost of the multi-polar groove is increased;

3) When in use, the electrodes drift and are dislocated, thus causing interelectrode short circuit and passivation of the polar plate. When the bipolar plate is used, due to the scouring and buoyancy effects of the electrolyte, the bipolar plate is stressed and cracked at the carbon glue bonding seam, so that the direct electrode spacing between the anode and the cathode is enlarged, and newly ionized liquid magnesium is gathered at the direct electrode spacing to cause an interelectrode short circuit. In addition, solid particles such as magnesium oxide and tank slag are entrained by electrolyte circulation, and are attached to the part to cause the passivation of the bipolar plate, reduce the tank pressure of the electrolytic tank and cause the deterioration of current efficiency;

4) The installation period is long, the use is inconvenient, the bipolar plate needs to be nearly a circle from the assembly to the installation in place due to the solidification period and the solidification mode of the carbon glue; in order to ensure the timely standby of the electrolytic cell, the structure needs to be optimized urgently, and the installation period of the cell accessories is shortened.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a bipolar graphite plate is with solving among the prior art bipolar plate installation cycle length, with high costs, the insecure easy cracking of installation leads to the problem of interelectrode short circuit and polar plate passivation.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a bipolar graphite plate, includes graphite plate and fixed pin, the graphite plate is installed on the bottom surface of electrolysis trough, the graphite plate includes first curb plate and second curb plate, be provided with the installation department on the graphite plate, the bottom surface of installation department perpendicular to electrolysis trough, the installation department includes first installation department and second installation department, first installation department sets up on first curb plate, and the second installation department sets up on the second curb plate, the fixed pin is installed and is used for linking together first curb plate and second curb plate in the installation department, the one end and the first installation department joint of fixed pin, the other end and second installation department joint.

This application bipolar graphite board, on the one hand, its simple structure, it is convenient to install, can shorten installation cycle greatly, compare with prior art, work efficiency promotes more than 70%, on the other hand, this kind of structure makes bipolar graphite board can directly assemble in the electrolysis trough, need not frequent handling, has reduced bipolar graphite board's breakage rate, practice thrift the cost more than 50 ten thousand yuan each year, finally, this kind of structure can improve the concatenation firmness of first curb plate and second curb plate, avoids graphite board fracture in use.

Further, one side of first installation department is handed over with the right side wall of first curb plate, and the opposite side is handed over with the last side wall of first curb plate, first installation department is including the first lateral wall, second lateral wall and the third lateral wall that connect gradually, the second lateral wall is parallel with the right side wall of first curb plate, first lateral wall is angle alpha with the second lateral wall, the third lateral wall is symmetrical with the first central line of first lateral wall for the second lateral wall with first lateral wall, the one end of first lateral wall, third lateral wall respectively with the second lateral wall be connected, the other end is handed over with the right side wall of first curb plate respectively, the structure of first installation department and second installation department is the same, just the contact surface symmetry of the relative first curb plate of first installation department and second curb plate.

The arrangement is simple in structure, convenient to install, firm in fixation and convenient to install in a matched mode between the installation part and the fixing pin.

Further, the fixed pin includes first fixed part and second fixed part, first fixed part is including the first preceding lateral wall, first left side wall and the first back lateral wall that connect gradually, first back lateral wall is angle alpha with first left side wall, the second center line symmetry of the relative first left side wall of first preceding lateral wall and first back lateral wall, first fixed part and second fixed part are symmetrical for the third center line of fixed pin.

The structure is convenient and fast to install and firm in fixing, and the structure is simple, so that the fixed pin can be conveniently processed and produced, and the production cost can be reduced.

Further, the first rear side wall comprises a first rear inclined wall and a first rear straight wall, one end of the first rear straight wall is perpendicularly connected with the first left side wall, the other end of the first rear straight wall is connected with the first rear inclined wall, and an included angle between the first rear inclined wall and the first left side wall is alpha.

The structure leaves a gap between the fixing pin and the mounting part, so that the fixing pin and the mounting part can be conveniently mounted and dismounted.

Further, the height of the mounting part is L2, and the height of the graphite plate is L1, so that L2 is more than or equal to 0.5L1 and less than or equal to L1.

This kind of structure can ensure the firm connection between first side board and the second side board.

Further, the height of the fixing pin is L3, and then L3= L2.

The structure can enhance the connection firmness between the first side plate and the second side plate.

Further, the fixing pin is made of silicon nitride ceramics.

The fixing pin is made of silicon nitride ceramic materials, so that the structural strength and the chloride ion scouring resistance of the fixing pin can be improved, the drift dislocation of the bipolar plate can be eliminated, and the interelectrode short circuit and the passivation of the bipolar plate are avoided.

Further, the first side plate and the second side plate are identical in structure.

The structure can improve the stability of the graphite plate, and the first side plate and the second side plate are prevented from being damaged due to uneven stress.

Further, the left side wall width of the first fixing portion is L5, and the width of the intersection surface of the first fixing portion and the second fixing portion is L4, L4: l5=4:5.

through the structure, the connection firmness between the fixing pin and the mounting part can be enhanced, so that the first side plate and the second side plate are firmly connected.

Further, the length of the first rear straight wall is L6, the width of the first fixing portion is L7, L6: l7= 1.

The structure can ensure firm connection between the fixing pin and the mounting part, and is convenient for mounting and dismounting between the fixing pin and the mounting part.

Compared with the prior art, the bipolar graphite plate of the utility model has the following advantages:

1) The installation part vertical to the bottom surface of the electrolytic tank is arranged on the graphite plate, and the first side plate and the second side plate can be firmly connected by matching and clamping the fixing pin with the installation part, so that the connection mode is convenient and quick to install and dismantle, and the installation period can be greatly shortened;

2) The structure enables the bipolar graphite plate to be directly assembled in the electrolytic cell without frequent hoisting, thereby reducing the breakage rate of the bipolar graphite plate;

3) The fixing pin is made of silicon nitride ceramic materials, so that the structural strength and the chloride ion scouring resistance of the fixing pin can be improved, the drift dislocation of the bipolar plate can be eliminated, and the interelectrode short circuit and the passivation of the bipolar plate are avoided.

Drawings

Fig. 1 is a schematic structural view of a bipolar graphite plate according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a bipolar graphite plate according to another angle in the embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic structural view of a first viewing angle of the fixing pin according to the embodiment of the present invention;

FIG. 5 is a second perspective view of the retaining pin of FIG. 4;

FIG. 6 is a third perspective view of the retaining pin of FIG. 4;

FIG. 7 is a fourth perspective view of the retaining pin of FIG. 4;

fig. 8 is a fifth perspective view of the fixing pin of fig. 4.

Description of reference numerals:

1. a graphite plate; 10. a contact surface; 11. an installation part; 110. a first centerline; 120. a second centerline; 130. a third centerline; 2. a first side plate; 21. a first mounting portion; 211. a first side wall; 212. a second side wall; 213. a third side wall; 3. a second side plate; 31. a second mounting portion; 4. a fixing pin; 5. a first fixed part; 51. a first front side wall; 52. a first left side wall; 53. a first rear sidewall; 531. a first rear sloped wall; 532. a first rear straight wall; 6. a second fixed part; 200. an electrolytic cell.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

As shown in fig. 1 to 8, a bipolar graphite plate comprises a graphite plate 1 and a fixing pin 4, the graphite plate 1 is installed on the bottom surface of an electrolytic cell 200, the graphite plate 1 comprises a first side plate 2 and a second side plate 3, an installation part 11 is arranged on the graphite plate 1, the installation part 11 is perpendicular to the bottom surface of the electrolytic cell 200, the installation part 11 comprises a first installation part 21 and a second installation part 31, the first installation part 21 is arranged on the first side plate 2, the second installation part 31 is arranged on the second side plate 3, the fixing pin 4 is installed in the installation part 11 and used for connecting the first side plate 2 and the second side plate 3 together, one end of the fixing pin 4 is clamped with the first installation part 21, and the other end is clamped with the second installation part 31.

The application bipolar graphite plate, the bottom surface of 4 perpendicular to electrolysis trough 200 of fixed pin is installed in installation department 11, install first curb plate 2 and second curb plate 3 together, on the one hand, its simple structure, it is convenient to install, can shorten the installation cycle greatly, compared with the prior art, work efficiency promotes more than 70%, on the other hand, this kind of structure makes bipolar graphite plate can directly assemble in the electrolysis trough, need not frequent handling, the breakage rate of bipolar graphite plate has been reduced, practice thrift cost more than 50 ten thousand yuan every year, and finally, this kind of structure can improve the concatenation firmness of first curb plate 2 and second curb plate 3, avoid the fracture of graphite plate 1 in use.

As a preferred example of the present invention, one side of the first installation portion 21 intersects with the right side wall of the first side plate 2, and the other side intersects with the upper side wall of the first side plate 2, the first installation portion 21 includes the first side wall 211, the second side wall 212 and the third side wall 213 that are connected in sequence, the second side wall 212 is parallel to the right side wall of the first side plate 2, the first side wall 211 and the second side wall 212 are at an angle α, the third side wall 213 is symmetrical to the first side wall 211 with respect to the first center line 110 of the second side wall 212, one end of the first side wall 211 and one end of the third side wall 213 are connected to the second side wall 212, and the other end intersects with the right side wall of the first side plate 2, the first installation portion 21 and the second installation portion 31 have the same structure, and the first installation portion 21 and the second installation portion 31 are symmetrical to the contact surface 10 of the first side plate 2 and the second side plate 3.

Specifically, first lateral wall 211 is angle alpha with second lateral wall 212, can make installation department 11 and fixed pin 4 cooperation joint, and this kind of setting is simple structure, the installation of being convenient for, and is fixed firm moreover, the cooperation installation between installation department 11 and the fixed pin 4 of being convenient for.

Preferably, alpha is more than or equal to 15 degrees and less than or equal to 45 degrees.

As a preferred example of the present invention, the fixing pin 4 includes a first fixing portion 5 and a second fixing portion 6, the first fixing portion 5 includes a first front sidewall 51, a first left sidewall 52 and a first rear sidewall 53 connected in sequence, the first rear sidewall 53 is at an angle α with the first left sidewall 52, the first front sidewall 51 and the first rear sidewall 53 are symmetrical with respect to a second center line 120 of the first left sidewall 52, and the first fixing portion 5 and the second fixing portion 6 are symmetrical with respect to a third center line 130 of the fixing pin 4.

Specifically, the structure is convenient to install and firm in fixing, the structure is simple, the fixing pin 4 can be conveniently machined and produced, and production cost can be reduced.

As a preferred example of the present invention, the first rear sidewall 53 includes a first rear inclined wall 531 and a first rear straight wall 532, one end of the first rear straight wall 532 is perpendicularly connected to the first left sidewall 52, the other end is connected to the first rear inclined wall 531, and the included angle between the first rear inclined wall 531 and the first left sidewall 52 is α.

Specifically, the structure leaves a gap between the fixing pin 4 and the mounting part 11, so that the fixing pin and the mounting part can be conveniently mounted and dismounted.

As a preferred example of the present invention, the height of the mounting portion 11 is L2, and the height of the graphite plate 1 is L1, and then L2 is not less than 0.5l1 and not more than L1.

In particular, this configuration ensures a secure connection between the first side plate 2 and the second side plate 3.

As a preferred example of the present invention, the height of the fixing pin 4 is L3, and then L3= L2.

In particular, this structure can enhance the connection firmness between the first side plate 2 and the second side plate 3.

As a preferred example of the present invention, the fixing pin 4 is made of silicon nitride ceramics.

Specifically, the fixing pin 4 is made of a silicon nitride ceramic material, so that the structural strength and the chloride ion scouring resistance of the fixing pin can be improved, the drift dislocation of the bipolar plate can be eliminated, the interelectrode short circuit and the passivation of the polar plate are avoided, the current efficiency of the electrolytic cell is improved by 1.45%, the productivity is improved by 0.8%, and the annual production benefit is increased by more than 1340 ten thousand yuan.

As a preferred example of the present invention, the first side plate 2 and the second side plate 3 have the same structure.

Specifically, this kind of structure can promote the stability of graphite cake 1 itself, avoids first curb plate 2 and second curb plate 3 to damage because of the atress is uneven.

As a preferred example of the present invention, the width of the left side wall of the first fixing portion 5 is L5, and the width of the intersection surface of the first fixing portion 5 and the second fixing portion 6 is L4, L4: l5=4:5.

specifically, with this structure, the fixing pin 4 and the mounting portion 11 can be firmly connected to each other, so that the first side plate 2 and the second side plate 3 can be firmly connected to each other.

As a preferred example of the present invention, the length of the first rear straight wall 532 is L6, the width of the first fixing portion 5 is L7, L6: l7= 1.

Specifically, the structure can ensure firm connection between the fixing pin 4 and the mounting part 11, and is convenient for mounting and dismounting between the fixing pin 4 and the mounting part 11.

Compared with the prior art, the bipolar graphite plate has the advantages that firstly, the installation part 11 perpendicular to the electrolytic cell 200 is arranged on the graphite plate 1, and the first side plate 2 and the second side plate 3 can be firmly connected through the matched clamping of the fixing pin 4 and the installation part 11, and the connection mode is convenient and rapid to install and disassemble, so that the installation period can be greatly shortened, and the working efficiency is improved by more than 70 percent compared with the prior art; secondly, the bipolar graphite plate can be directly assembled in the electrolytic cell by the structure without frequent hoisting, so that the damage rate of the bipolar graphite plate is reduced, and the cost is saved by more than 50 ten thousand yuan each year; thirdly, the fixing pin 4 is made of silicon nitride ceramic materials, so that the structural strength and the chloride ion scouring resistance of the fixing pin can be improved, the drift dislocation of the bipolar plate can be eliminated, the inter-electrode short circuit and the passivation of the polar plate are avoided, the current efficiency of the electrolytic cell is improved by 1.45%, the productivity is improved by 0.8%, and the annual production benefit is increased by more than 1340 ten thousand yuan.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. The utility model provides a bipolar graphite plate, its characterized in that, includes graphite plate (1) and fixed pin (4), install on the bottom surface of electrolysis trough (200) graphite plate (1), graphite plate (1) includes first curb plate (2) and second curb plate (3), be provided with installation department (11) on graphite plate (1), the bottom surface of installation department (11) perpendicular to electrolysis trough (200), installation department (11) are including first installation department (21) and second installation department (31), first installation department (21) set up on first curb plate (2), and second installation department (31) set up on second curb plate (3), fixed pin (4) are installed and are used for linking together first curb plate (2) and second curb plate (3) in installation department (11), the one end and the first installation department (21) joint of fixed pin (4), the other end and second installation department (31) joint.

2. The bipolar graphite plate according to claim 1, wherein one side of the first mounting portion (21) intersects with a right side wall of the first side plate (2), and the other side intersects with an upper side wall of the first side plate (2), the first mounting portion (21) includes a first side wall (211), a second side wall (212), and a third side wall (213) connected in sequence, the second side wall (212) is parallel to the right side wall of the first side plate (2), the first side wall (211) and the second side wall (212) are at an angle α, the third side wall (213) is symmetrical to the first side wall (211) with respect to a first center line (110) of the second side wall (212), one ends of the first side wall (211) and the third side wall (213) are respectively connected to the second side wall (212), the other ends intersect with the right side wall of the first side plate (2), the first mounting portion (21) and the second mounting portion (31) have the same structure, and the first mounting portion (21) and the second mounting portion (31) are in contact with the first side plate (10) symmetrically.

3. Bipolar graphite plate according to claim 1, wherein the fixing pin (4) comprises a first fixing part (5) and a second fixing part (6), the first fixing part (5) comprising a first front side wall (51), a first left side wall (52) and a first rear side wall (53) connected in sequence, the first rear side wall (53) being at an angle α to the first left side wall (52), the first front side wall (51) and the first rear side wall (53) being symmetrical with respect to a second centre line (120) of the first left side wall (52), the first fixing part (5) and the second fixing part (6) being symmetrical with respect to a third centre line (130) of the fixing pin (4).

4. The bipolar graphite plate of claim 3, wherein the first rear side wall (53) comprises a first rear inclined wall (531) and a first rear straight wall (532), one end of the first rear straight wall (532) is perpendicularly connected with the first left side wall (52), the other end of the first rear straight wall is connected with the first rear inclined wall (531), and the first rear inclined wall (531) and the first left side wall (52) form an included angle α.

5. The bipolar graphite plate according to claim 1, wherein the height of the mounting portion (11) is L2, and the height of the graphite plate (1) is L1, then 0.5l1 ≦ L2 ≦ L1.

6. Bipolar graphite plate according to claim 5, characterized in that the height of the fixing pins (4) is L3, then L3= L2.

7. Bipolar graphite plate according to claim 1, characterised in that the fixing pin (4) is made of silicon nitride ceramic.

8. Bipolar graphite plate according to claim 1, characterised in that the first side plate (2) and the second side plate (3) are of identical construction.

9. Bipolar graphite plate according to claim 3, wherein the width of the left side wall of the first fixing part (5) is L5, the width of the intersection of the first fixing part (5) and the second fixing part (6) is L4, L4: l5=4:5.

10. bipolar graphite plate according to claim 4, wherein the length of the first rear straight wall (532) is L6 and the width of the first fixing part (5) is L7, L6: l7= 1.