CN220579421U

CN220579421U - Anode carbon block for aluminum electrolysis cell

Info

Publication number: CN220579421U
Application number: CN202321727106.2U
Authority: CN
Inventors: 王民; 秦建春; 陈蒲明; 王锦; 唐宗权; 赵平; 黄书; 梅晓军; 何建忠; 吕健; 姚勇; 伏礼兵; 潘小强
Original assignee: Chongqing Qineng Electricity & Aluminum Co ltd
Current assignee: Chongqing Qineng Electricity & Aluminum Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-03-12
Anticipated expiration: 2033-07-04

Abstract

The utility model provides an anode carbon block for an aluminum electrolysis cell, which comprises a carbon block body in a cuboid shape and a special-shaped boss; the upper end of the carbon block body is provided with a material groove; the four material tanks are respectively arranged at the four vertex angles of the carbon block body; the special-shaped bosses are arranged among the four material grooves; the special-shaped boss is provided with a bottom, a top and a side; the shapes of the bottom and the top are matched and are similar to an ellipse, the surface area of the bottom is larger than that of the top, and the bottom is connected with the top through the inclined side part; the upper end of the top is provided with a plurality of concave carbon bowls in parallel. The utility model is used for solving the problems that the anode made of the anode carbon block in the prior art is easy to crack and de-polar of a carbon bowl, and a steel claw is fused and penetrates through the bottom, and simultaneously ensures the quality of raw aluminum.

Description

Anode carbon block for aluminum electrolysis cell

Technical Field

The utility model belongs to the technical field of anode carbon blocks, and particularly relates to an anode carbon block for an aluminum electrolysis cell.

Background

In the current electrolytic aluminum production, the anode and the cathode are required to be placed in an electrolytic tank with a certain gap, powdery aluminum oxide and some additives are placed between the anode and the cathode, and then the anode and the cathode are electrified to produce metallic aluminum. The anode consists of an anode guide rod and an anode carbon block. The anode carbon block is produced through the steps of proportioning, molding, roasting and the like. The claw head of the anode guide rod is made of cast steel. The claw head of the anode guide rod extends into the carbon bowl of the anode carbon block through the assembly process, and then phosphorus pig iron is poured to connect the guide rod and the carbon block together to form the anode.

The anode carbon block in the prior art has the advantages that most of the appearance top angles, edges and bottom angles are right angles to form line connection, so that the phenomenon of corner collision and corner falling easily occurs in the transportation process, and the appearance quality is influenced; when the anode is used, the anode made of the anode carbon blocks in the prior art is easy to crack and de-pole the carbon bowl, and the steel claw is fused or penetrated; meanwhile, the claw heads are immersed into molten dielectric medium of the electrolytic tank, so that iron ions are molten into aluminum liquid, and the quality of the original aluminum is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an anode carbon block for an aluminum electrolysis cell, which is used for solving the problems that an anode made of the anode carbon block in the prior art is easy to crack and depolarize a carbon bowl, a steel claw is fused and penetrates the bottom, and simultaneously ensuring the quality of raw aluminum.

The utility model provides an anode carbon block for an aluminum electrolysis cell, which comprises a carbon block body in a cuboid shape and a special-shaped boss;

the upper end of the carbon block body is provided with a material groove;

the four material tanks are respectively arranged at the four vertex angles of the carbon block body;

the special-shaped bosses are arranged among the four material grooves.

The upper end of the top is provided with a plurality of concave carbon bowls in parallel.

In the above technical solution, the present utility model may be further improved as follows.

The preferable technical scheme is characterized in that: the special-shaped boss is provided with a bottom, a top and a side part, the shape looks adaptation of the bottom and the top is similar to an ellipse, the surface area of the bottom is larger than that of the top, the bottom is connected with the side part through the inclination between the top, the upper end of the top is provided with a plurality of concave carbon bowls in parallel, the bottom is provided with a first arc-shaped part and a first wavy transition part, the first arc-shaped part is arranged in two and bilateral symmetry, and the front end and the rear end opposite to the first arc-shaped part are connected through the two first wavy transition parts respectively.

The preferable technical scheme is characterized in that: the top has second arc portion and second wave transition portion, second arc portion is two and bilateral symmetry sets up, two the relative front end of second arc portion and rear end are connected through two respectively second wave transition portion.

The preferable technical scheme is characterized in that: the material groove is crescent, the material groove is close to the one end of first arc portion is located under the first arc portion.

The preferable technical scheme is characterized in that: the inner side wall of the carbon bowl is circumferentially provided with a plurality of grooves with large external openings and small internal openings at intervals, and the grooves are obliquely arranged from the opening of the carbon bowl to the bottom of the carbon bowl.

The preferable technical scheme is characterized in that: two exhaust grooves are symmetrically arranged at the front and back of the lower end of the carbon block body, and the left end and the right end of each exhaust groove respectively penetrate through the left end and the right end of the carbon block body.

The preferable technical scheme is characterized in that: the left side end of the exhaust groove is higher than the right side end of the exhaust groove.

The preferable technical scheme is characterized in that: the upper end of the exhaust groove is arc-shaped.

The preferable technical scheme is characterized in that: the corners among the four sides of the carbon block body are first arc transition angles.

The preferable technical scheme is characterized in that: four vertex angles of the top surface of the carbon block body are second arc transition angles, and four vertex angles of the bottom surface of the carbon block body are third arc transition angles.

The beneficial effects of the utility model are as follows: according to the utility model, the carbon block body and the special-shaped boss are arranged, so that the weight of the anode carbon block can be reduced compared with the traditional trapezoidal boss, the material tank is used for storing heat-insulating materials, the heat-insulating materials are prevented from sliding from the upper end of the carbon block body, and the anode carbon block is further prevented from being oxidized in the use process. By improving the structure of the anode carbon block, the phenomena of breaking and pole removing of the carbon bowl, fusing of the steel claw, bottom penetrating and the like are avoided when the anode is used; meanwhile, the whole cell condition of the aluminum electrolysis cell has no abnormal change, and the quality of the original aluminum is stable. The utility model is safe and controllable in the use process, the residual electrode of the lower line is regular, the anti-oxidation effect of the lower material point is obvious, the carbon residue amount is less, and the anode Mao Hao and the power consumption are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view of an anode carbon block for an aluminum electrolysis cell according to embodiment 1 of the present utility model.

FIG. 2 is a top view of an anode carbon block for an aluminum electrolysis cell according to embodiment 1 of the utility model.

FIG. 3 is a left side view of an anode carbon block for an aluminum electrolysis cell according to embodiment 1 of the utility model.

FIG. 4 is a right side view of an anode carbon block for an aluminum electrolysis cell according to embodiment 1 of the utility model.

FIG. 5 is a top view of the charcoal bowl of example 1 of the present utility model.

FIG. 6 is a top view of an anode carbon block for an aluminum electrolysis cell according to embodiment 2 of the utility model.

FIG. 7 is a left side view of an anode carbon block for an aluminum electrolysis cell according to embodiment 2 of the utility model.

Fig. 8 is a schematic view showing the structure of a striker plate of embodiment 2 of the present utility model.

FIG. 9 is a top view of the charcoal bowl of example 2 of the present utility model.

FIG. 10 is a partial schematic view of a carbon bowl of example 2 of the present utility model positioned on a carbon block body.

In the drawings, the meaning of each symbol is as follows:

1. a carbon block body; 11. a material tank; 12. an exhaust groove; 13. a first arc transition angle; 14. a second arc transition angle; 15. a third arc transition angle; 17. an extension groove; 18. a material blocking block; 19. an exhaust hole; 2. a special-shaped boss; 21. a bottom; 211. a first arc-shaped portion; 212. a first undulating transition; 22. a side portion; 23. a top; 231. a second arc-shaped portion; 232. a second undulating transition portion; 24. a charcoal bowl; 241. a groove; 242. a thread groove.

Detailed Description

For a further understanding of the utility model, its features and advantages, the following examples are set forth to illustrate, but are not limited to, the following examples:

example 1

Referring to fig. 1 and 5, the present embodiment provides an anode carbon block for an aluminum electrolysis cell, which comprises a carbon block body 1 having a rectangular parallelepiped shape, and further comprises a special-shaped boss 2;

the upper end of the carbon block body 1 is provided with a material groove 11;

the four material grooves 11 are respectively arranged at the four vertex angles of the carbon block body 1;

the special-shaped boss 2 is arranged among the four material grooves 11.

According to the embodiment, the carbon block body 1 and the special-shaped boss 2 are arranged, the special-shaped boss 2 is smaller than a traditional trapezoid boss in size, the weight of the anode carbon block can be reduced, the material groove 11 is used for storing heat-insulating materials, the heat-insulating materials are prevented from sliding off from the upper end of the carbon block body 1, and the anode carbon block is further prevented from being oxidized in the use process.

According to the embodiment, the structure of the anode carbon block is improved, so that the phenomena of breaking and pole removing of a carbon bowl, fusing of a steel claw, bottom penetrating and the like are avoided when the anode is used; meanwhile, the whole cell condition of the aluminum electrolysis cell has no abnormal change, and the quality of the original aluminum is stable.

Referring to fig. 2, the shaped boss 2 has a bottom 21, a top 23, and a side 22, the shapes of the bottom 21 and the top 23 are adapted and are similar to an ellipse, the surface area of the bottom 21 is larger than the surface area 23 of the top, the bottom 21 and the top 23 are connected by the inclined side 22, four concave carbon bowls 24 are arranged at the upper end of the top 23 in parallel, the bottom 21 has two first arc-shaped portions 211 and two first wavy transition portions 212, the first arc-shaped portions 211 are symmetrically arranged left and right, and the front ends and the rear ends of the two opposite first arc-shaped portions 211 are respectively connected by the two first wavy transition portions 212.

Compared with the traditional trapezoid boss, the elliptical special-shaped boss 2 is smaller in size, the weight of the anode carbon block can be reduced, and meanwhile, the transition with the material groove 11 is better, and the strength is higher; meanwhile, the surface area of the bottom 21 of the special-shaped boss 2 is further reduced, and the weight of the special-shaped boss 2 is reduced.

Referring to fig. 2, the top 23 has two second arc-shaped portions 231 and second wavy transition portions 232, wherein the two second arc-shaped portions 231 are symmetrically disposed about each other, and opposite front ends and rear ends of the two second arc-shaped portions 231 are respectively connected through the two second wavy transition portions 232.

This arrangement further reduces the surface area of the top 23, which serves to reduce the weight of the shaped boss 2.

Referring to fig. 2, the material tank 11 is crescent-shaped, and one end of the material tank 11, which is close to the first arc portion 211, is located right below the first arc portion 211.

The crescent material groove 11 is better in anti-falling effect, and the periphery of the material groove 11 is arc-shaped, so that the angle of collision can be effectively avoided.

Referring to fig. 1 and 3 to 5, a plurality of grooves 241 with large outer openings and small inner openings are circumferentially arranged on the inner side wall of the carbon bowl 24 at intervals, and the grooves 241 are obliquely arranged from the opening of the carbon bowl 24 toward the bottom 21 of the carbon bowl 24.

The groove 241 is used for increasing the contact area between the phosphorus pig iron and the anode, improving the connection strength between the guide rod and the special-shaped boss 2, and reducing the contact pressure drop between the phosphorus pig iron and the special-shaped boss 2, thereby reducing the power consumption and achieving the purpose of energy conservation.

Referring to fig. 1, 3 and 4, two air discharge grooves 12 are symmetrically disposed at the front and rear of the lower end of the carbon block body 1, and the left and right ends of the air discharge grooves 12 respectively penetrate through the left and right ends of the carbon block body 1.

The vent slot 12 is provided to facilitate air bubble venting, reduce anode palm air bubbles, reduce contact surface resistivity and not to fault out.

Referring to fig. 1, 3-4, the left end of the air discharge slot 12 is higher than the right end of the air discharge slot 12.

The height of the left side end of the air discharge groove 12 in this embodiment is 260mm, and the height of the right side end of the air discharge groove 12 is 220mm.

In addition, the exhaust groove 12 in this embodiment has a lower end width of 12mm and an upper end width of 6mm, and has a middle arc transition.

Referring to fig. 3 and 4, the upper end of the air discharge groove 12 is arc-shaped.

This is provided to increase the strength of the upper end of the exhaust duct 12.

Referring to fig. 3 and 4, the corners between the four sides of the carbon block body 1 are first arc transition corners 13.

The first arc transition angle 13 is arranged to enable the upper end of the carbon block body 1 not to be easy to collide with the angle.

Referring to fig. 1, 2, 3 and 4, the four top corners of the top surface of the carbon block body 1 are second arc transition corners 14, and the four top corners of the bottom surface of the carbon block body 1 are third arc transition corners 15.

The second arc transition angle 14 and the third arc transition angle 15 enable the side end and the lower end of the carbon block body 1 not to be easy to collide with the corners.

The sum of the heights of the carbon block body 1 and the special-shaped boss 2 in the embodiment is 650+5mm.

Example 2

Referring to fig. 6 to 10, the present embodiment provides an anode carbon block for an aluminum electrolysis cell, which is different from embodiment 1 in that: a thread groove 242 is formed on the inner side wall of the carbon bowl 24 along the annular direction of the carbon bowl 24, and the thread groove 242 is communicated with the groove 241.

The thread groove 242 is used for further increasing the contact area between the phosphorus pig iron and the anode, the phosphorus pig iron has the effect of a thread-shaped reinforcing rib after solidification, the thread groove 242 is intersected with the groove 241, the phosphorus pig iron which is fixedly arranged at the intersection position of the thread groove 242 and the groove 241 is solidified, the whole phosphorus pig iron in the groove 241 is net-shaped after solidification, compared with the traditional strip-shaped phosphorus pig iron, the net-shaped phosphorus pig iron has higher connection strength between the guide rod and the special-shaped boss 2, and the effect of reducing the power consumption is more obvious.

Referring to fig. 1, a crescent-shaped extending groove 17 extending towards the circumferential side of the material groove 11 is provided in the material groove 11.

The extension tank 17 is provided for further increasing the volume of the material tank 11 for placing more insulation material.

The extension groove 17 here extends in a direction facing away from the profiled bead 2.

Referring to fig. 6 and 8, the four vertex angles of the carbon block body 1 are respectively provided with a crescent-shaped baffle block 18.

The baffle block 18 is arranged to block the outer side of the material tank 11, so as to prevent the heat preservation material from falling out of the outer side of the material tank 11.

Referring to fig. 6 and 8, the four corners of the carbon block body 1 are respectively provided with a clamping groove (not shown), and the lower end of the baffle block 18 is provided with a clamping column clamped with the clamping grooves.

Through with the draw-in column card go into in the draw-in groove, the fender piece 18 blocks the outside of material groove 11, has indirectly increased the degree of depth of material groove 11, makes material groove 11 can place more insulation material.

The clamping columns and the clamping grooves are filled with foam mud, so that the separation of the baffle block 18 and the carbon block body 1 is further avoided.

Referring to fig. 7, two exhaust grooves 12 are connected through exhaust holes 19, and the exhaust holes 19 are plural and are arranged at intervals along the vertical direction of the carbon block body 1.

The exhaust hole 19 is used for assisting the two exhaust grooves 12 to exhaust, when one exhaust groove 12 exhausts more, the redundant gas can enter the other exhaust groove 12 from the exhaust hole 19 and is exhausted through the other exhaust groove 12, so that the exhaust efficiency is higher.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in this specification and the features of the various embodiments or examples may be combined and combined by persons skilled in the art without contradiction. While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. An anode carbon block for an aluminum electrolysis cell, which is characterized in that: comprises a cuboid carbon block body and a special-shaped boss;

the upper end of the carbon block body is provided with a material groove;

the special-shaped bosses are arranged among the four material grooves.

2. The anode carbon block for an aluminum electrolysis cell according to claim 1, wherein: the special-shaped boss is provided with a bottom, a top and a side part, the shape looks adaptation of the bottom and the top is similar to an ellipse, the surface area of the bottom is larger than that of the top, the bottom is connected with the side part through the inclination between the top, the upper end of the top is provided with a plurality of concave carbon bowls in parallel, the bottom is provided with a first arc-shaped part and a first wavy transition part, the first arc-shaped part is arranged in two and bilateral symmetry, and the front end and the rear end opposite to the first arc-shaped part are connected through the two first wavy transition parts respectively.

3. The anode carbon block for an aluminum electrolysis cell according to claim 2, wherein: the top has second arc portion and second wave transition portion, second arc portion is two and bilateral symmetry sets up, two the relative front end of second arc portion and rear end are connected through two respectively second wave transition portion.

4. An anode carbon block for an aluminum electrolysis cell according to claim 3, wherein: the material groove is crescent, the material groove is close to the one end of first arc portion is located under the first arc portion.

5. The anode carbon block for an aluminum electrolysis cell according to claim 2, wherein: the inner side wall of the carbon bowl is circumferentially provided with a plurality of grooves with large external openings and small internal openings at intervals, and the grooves are obliquely arranged from the opening of the carbon bowl to the bottom of the carbon bowl.

6. The anode carbon block for an aluminum electrolysis cell according to claim 1, wherein: two exhaust grooves are symmetrically arranged at the front and back of the lower end of the carbon block body, and the left end and the right end of each exhaust groove respectively penetrate through the left end and the right end of the carbon block body.

7. The anode carbon block for aluminum electrolysis cell according to claim 6, wherein: the left side end of the exhaust groove is higher than the right side end of the exhaust groove.

8. The anode carbon block for aluminum electrolysis cell according to claim 7, wherein: the upper end of the exhaust groove is arc-shaped.

9. The anode carbon block for an aluminum electrolysis cell according to claim 1, wherein: the corners among the four sides of the carbon block body are first arc transition angles.

10. The anode carbon block for aluminum electrolysis cell according to claim 9, wherein: four vertex angles of the top surface of the carbon block body are second arc transition angles, and four vertex angles of the bottom surface of the carbon block body are third arc transition angles.