Aluminum electrolysis feed opening expanding device and manufacturing die thereof
By using the taper opening expander of the conical expansion missile in the aluminum electrolytic production equipment, the safety hazards and high consumption problems of manual operation when the taper is blocked are solved, and automatic expansion is achieved, efficiency is improved and equipment damage is reduced.
Patent Information
- Application Number
- CN202420826866.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the aluminum electrolysis production process, when the cutting port is blocked, the existing technology relies on manual operation, which poses safety hazards, consumes a lot of physical strength and time, and causes damage to the equipment.
An aluminum electrolytic feeding port expansion device is designed, and a conical expansion ammunition missile is used to set between the shell hammer head and the electrolytic tank cutting port, and the lower end of the conical expansion ammunition ammunition is used to destroy the shell crust of the shell hammer head, so as to achieve automatic expansion.
No manual operation is required, which greatly reduces the operator's labor intensity, improves work efficiency, simplifies the operation process, and reduces the wear of the shell hammer head, ensuring the safe and stable operation of the equipment.
Smart Images
Figure CN222795754U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum electrolysis production equipment, in particular to an aluminum electrolysis feed opening expander and a manufacturing mold thereof. Background Art
[0002] Modern aluminum industry production adopts cryolite-alumina molten salt electrolysis. Alumina as a solvent needs to pass through six (or four) feeding points on the upper structure of the aluminum electrolytic cell. After the pneumatic cylinder drives the shell hammer to open the feed port, uninterrupted feeding on demand is implemented to allow alumina to enter the molten electrolyte to ensure the continuous electrochemical reaction. During the daily maintenance of electrolytic production, the blockage of the feed port will induce the anode effect or the instability of the electrolytic cell operation, increasing the energy consumption of electrolytic production. Therefore, ensuring the unobstructed feed port is the focus and difficulty of daily inspection and maintenance of electrolytic production.
[0003] When the feed port is blocked and the shell hammer cannot be opened, the existing solution to the blockage of the feed port is: manual intervention for auxiliary operation, that is, manually using a hexagonal steel chisel to poke, pierce or use a hand hammer to assist in shaking the shell hammer (that is, the shell hammer driven by the pneumatic cylinder). The disadvantages are: 1. The operator steps on the anode shell surface to operate, which poses a safety hazard of scalding the feet; 2. Manually opening the feed port requires a lot of physical strength and time; 3. Manually shaking the shell hammer with a hand hammer is not only time-consuming and laborious, but also causes serious damage to the sealing ring of the pneumatic cylinder, increasing the failure rate of the pneumatic cylinder. Utility Model Content
[0004] The purpose of the utility model is to provide an aluminum electrolysis feed port expander and a manufacturing mold thereof, so as to solve the problems existing in the above-mentioned prior art, greatly reduce the labor intensity of the operator, improve work efficiency, and operate simply, conveniently and quickly, and can ensure the safe operation of the original equipment and improve the dredging effect.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides an aluminum electrolysis feed opening expander, comprising a conical expansion bullet; the conical expansion bullet is used to be arranged between a shelling hammer head and a feed opening of an electrolytic cell; the side wall of the conical expansion bullet is an inverted cone, the outer diameter of the lower end of the inverted cone is smaller than the outer diameter of the shelling hammer head, and the outer diameter of the upper end of the inverted cone is larger than the outer diameter of the shelling hammer head and not larger than the inner diameter of the feed opening of the electrolytic cell; the end of the conical expansion bullet close to the shelling hammer head is provided with a groove for pressing and contacting with the shelling hammer head, and the upper end edge of the conical expansion bullet can be deformed in the direction close to the axis of the conical expansion bullet after being squeezed and fall into the electrolytic cell through the feed opening of the electrolytic cell; the conical expansion bullet can be melted by the electrolytic cell and does not affect the original electrolytic reaction.
[0007] Preferably, the raw materials for making the conical expansion bomb are obtained from an electrolytic cell.
[0008] Preferably, the groove is in the shape of an inverted truncated cone, and the groove is in surface contact with the lower end of the shell-breaking hammer head.
[0009] The utility model also provides a mold for manufacturing an aluminum electrolysis feeding port expander based on any one of the above items, comprising a mold body and at least one mold cover; the mold body has at least one mold cavity, and the inner wall and bottom surface shape of the mold cavity match the outer wall and bottom surface shape of the conical expansion bullet; the mold cavity has an upper opening, and the mold cover is provided at the upper opening, and the mold cover can close or open the upper opening.
[0010] Preferably, the number of the mold cavities and the number of the mold covers are both two.
[0011] Compared with the prior art, the utility model has achieved the following technical effects:
[0012] The aluminum electrolysis feed opening expander provided by the utility model is provided with a conical expansion bomb that is larger at the top and smaller at the bottom, and is placed between a shell-breaking hammer head and the feed opening of the electrolytic cell, and the original shell-breaking hammer head is used to press the conical expansion bomb downward, so that the contact area between the lower end of the conical expansion bomb and the shell at the feed opening is reduced compared with the contact area between the shell-breaking hammer head and the shell at the feed opening, and the pressure is increased, so that it is easy to destroy the shell at the feed opening, and the feed opening can be opened without manual operation, which greatly reduces the labor intensity of the operator, improves the work efficiency, and is simple, convenient and quick to operate; the feed opening after expansion reduces the wear of the shell-breaking hammer head; after the feed opening is expanded, the stable operation of the electrolytic cell can be guaranteed, and the The equipment operates safely and stably; and the upper end of the conical expansion bullet is set to be larger than the outer diameter of the shell breaking hammer but not larger than the discharge port, which can achieve a greater expansion effect at the discharge port and improve the dredging effect, and the outer edge of the upper end of the conical expansion bullet is squeezed inwardly to facilitate passing through the discharge port, thereby reducing the phenomenon of the conical expansion bullet being stuck in the discharge port; the setting of the groove on the conical expansion bullet can not only achieve a stable connection between it and the shell breaking hammer and a stable guide after the connection, but also provide an accommodation space after the upper edge of the conical expansion bullet is squeezed inwardly; and it can be melted by the electrolytic cell and does not affect the original electrolytic reaction in the electrolytic cell, thereby reducing the impact on the function of the electrolytic cell.
[0013] Furthermore, the raw materials for making the conical expander are obtained from the electrolytic cell, which minimizes the production cost and can be scooped and made from the electrolytic cell at any time, realizing local material utilization. The conical expander uses aluminum as the base material. Since the melting point of aluminum is only 660°C, the aluminum conical expander can quickly melt when it enters the 950°C electrolyte solution of the electrolytic cell. Therefore, the aluminum conical expander will not pollute the original aluminum resources when it melts in the electrolytic cell, minimizing the impact of the conical expander on the electrolytic cell after entering the electrolytic cell.
[0014] Furthermore, due to the circumferential wear of the lower end of the shelling hammer head under long-term use, the groove adopts an inverted frustum shape and maintains surface contact with the lower end of the shelling hammer head, which can ensure the stable pressure extrusion contact of the shelling hammer head on the conical expansion bullet.
[0015] The utility model also provides a manufacturing mold, which can be manufactured by pouring a quantitative casting liquid for manufacturing a conical expansion bullet at the upper opening of the mold cavity, and then closing the mold cover and waiting for the liquid to solidify, thereby completing the manufacturing process. The manufacturing process is simple and convenient.
[0016] Furthermore, two mold cavities and mold covers are used to achieve the production of two conical expansion bombs at a time, thereby improving the production efficiency; and the use of two mold cavities can effectively guarantee the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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 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 work.
[0018] Figure 1 A schematic diagram of the structure of the conical expansion bomb provided by the utility model;
[0019] Figure 2 A schematic diagram of the use of the conical expansion bomb provided by the utility model on an electrolytic cell;
[0020] Figure 3 A schematic diagram of the structure of a mold for making a conical expansion bullet provided by the utility model;
[0021] Figure 4 for Figure 3 Schematic diagram of top view;
[0022] Figure 5 A schematic diagram of the contact between the conical expansion bullet and the shelling hammer provided by the utility model;
[0023] Figure 6A schematic diagram of the contact between the conical expansion bullet and the shelling hammer provided by the utility model;
[0024] Figure 7 A schematic diagram of the contact between the conical expansion bullet and the shelling hammer provided by the utility model;
[0025] Figure 8 The utility model is a schematic diagram of the contact between the conical expansion bullet and the shelling hammer head.
[0026] In the figure:
[0027] 1-conical expansion bullet; 11-inverted cone surface; 12-groove;
[0028] 2-mold body; 21-mold cavity; 22-mold cover; 221-handle;
[0029] 3-shell hammer;
[0030] 4-Electrolyzer. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] The purpose of the utility model is to provide an aluminum electrolysis feed port expander and a manufacturing mold thereof, so as to solve the problems existing in the prior art, greatly reduce the labor intensity of the operator, improve work efficiency, and operate simply, conveniently and quickly, and can ensure the safe operation of the original equipment and improve the dredging effect.
[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0034] Embodiment 1
[0035] This embodiment provides an aluminum electrolysis feed opening expander, such as Figure 1 and Figure 2As shown, it includes a conical expansion bullet 1; the conical expansion bullet 1 is used to be arranged between the shelling hammer head 3 and the feeding port of the electrolytic cell 4; the side wall of the conical expansion bullet 1 is an inverted cone 11, the lower end outer diameter of the inverted cone 11 is smaller than the inner diameter of the feeding port of the electrolytic cell 4, and the upper end outer diameter of the inverted cone 11 is larger than the inner diameter of the feeding port of the electrolytic cell 4; the end of the conical expansion bullet 1 close to the shelling hammer head 3 is provided with a groove 12 for pressing and contacting with the shelling hammer head 3, and the upper end edge of the conical expansion bullet 1 can be deformed in the direction close to the axis of the conical expansion bullet 1 after being squeezed and fall into the electrolytic cell 4 through the feeding port of the electrolytic cell 4; the conical expansion bullet 1 can be melted by the electrolytic cell 4 and does not affect the original electrolytic reaction.
[0036] By setting a conical expansion bullet 1 with a larger top and a smaller bottom, and placing it between the shelling hammer 3 and the discharge port of the electrolytic cell 4, the original shelling hammer 3 is used to press the conical expansion bullet 1 downward, and the contact area between the lower end of the conical expansion bullet 1 and the crust at the discharge port is reduced compared with the contact area between the shelling hammer 3 and the crust at the discharge port, and the pressure is increased, so that it is easy to destroy the crust at the discharge port, and the discharge port can be opened without manual operation, which greatly reduces the labor intensity of the operator, improves work efficiency, and is simple, convenient and fast to operate; the discharge port after expansion reduces the wear of the shelling hammer 3; after the discharge port is expanded, the stable operation of the electrolytic cell 4 can be guaranteed, and the safe and stable operation of the equipment is guaranteed; and The upper end of the conical expansion bullet 1 is set to be larger than the outer diameter of the shell breaking hammer head 3 but not larger than the discharge port, which can achieve a greater expansion effect at the discharge port and improve the dredging effect. After the outer edge of the upper end of the conical expansion bullet 1 is squeezed inwardly, it is convenient to pass through the discharge port, reducing the phenomenon of the conical expansion bullet 1 being stuck in the discharge port; the setting of the groove 12 on the conical expansion bullet 1 can not only achieve a stable connection between it and the shell breaking hammer head 3 and a stable guidance after the connection, but also provide an accommodation space after the upper edge of the conical expansion bullet 1 is squeezed inwardly; and it can be melted by the electrolytic cell 4 without affecting the original electrolytic reaction in the electrolytic cell 4, thereby reducing the impact on the function of the electrolytic cell 4.
[0037] Among them, for the structure of the conical expansion bomb 1:
[0038] Specifically, the set size of the upper end outer diameter of the conical expansion bullet 1 and the inner diameter of the feed opening can be determined according to the expansion effect on the feed opening.
[0039] For example, the specifications of the conical expansion projectile 1 are 100mm in diameter at the upper end and 155mm and 250mm in height to meet the requirements of the discharge ports at different locations. (If the discharge port is used for the low-position anode, a conical expansion projectile 1 with a height of 155mm is used; if the discharge port is used for the high-position anode, a conical expansion projectile 1 with a height of 250mm is used.)
[0040] Specifically, the outer wall of the upper end of the conical expansion bullet 1 is a cylindrical surface, the lower end of the cylindrical surface is connected to the upper end of the lower inverted cone surface 11 of the conical expansion bullet 1, and the outer diameters of the two are the same.
[0041] In order to reduce the influence of the conical expansion bomb 1 on the electrolytic cell 4, the following settings can also be made:
[0042] In the optional scheme of this embodiment, it is more preferred that the raw materials for making the conical expansion bullet 1 are obtained from the electrolytic cell 4. The raw materials for making the conical expansion bullet 1 are obtained from the electrolytic cell 4, which minimizes the production cost and can be scooped and made from the electrolytic cell 4 at any time, realizing local materials; the conical expansion bullet 1 uses aluminum as the base material. Since the melting point of aluminum is only 660°C, the aluminum conical expansion bullet 1 enters the 4950°C electrolyte of the electrolytic cell and can melt quickly. Therefore, the aluminum conical expansion bullet 1 melts in the electrolytic cell 4 without polluting the original aluminum resources, and minimizes the impact of the conical expansion bullet 1 on the electrolytic cell 4 after entering the electrolytic cell 4.
[0043] Specifically, the material of the conical expansion bullet 1 can preferably be pure aluminum, which has little impact on the inside of the electrolytic cell 4.
[0044] Among them, the contact form between the groove 12 on the conical expansion bullet 1 and the lower end of the shell hammer 3 is:
[0045] The lower end of the shell hammer 3 will gradually wear from the cylindrical lower end to an inverted truncated cone after long-term use; the groove 12 set at the upper end of the conical expansion bullet 1 is in the shape of an inverted truncated cone. The contact between the two will form a variety of contact modes, mainly including two categories: line contact and surface contact:
[0046] Line contact: Figure 5 As shown, the maximum outer diameter of the inverted truncated cone at the lower end of the shell-breaking hammer head 3 is in contact with the side wall of the inverted truncated cone-shaped groove 12 of the conical expansion bullet 1 in an annular line.
[0047] Face contact: Figure 6 As shown, the lower end of the shell hammer 3 has a partially surface contact with the side wall of the inverted truncated cone-shaped groove 12 of the conical expansion bullet 1, and at this time, there is a gap between the lower plane of the inverted truncated cone of the lower end of the shell hammer 3 and the inner bottom surface of the inverted truncated cone-shaped groove 12 of the conical expansion bullet 1; as shown in FIG. Figure 7 As shown, the lower plane of the inverted truncated cone at the lower end of the shell hammer 3 is in surface contact with the inner bottom surface of the inverted truncated cone groove 12 of the conical expansion bullet 1. At this time, the side wall of the inverted truncated cone of the shell hammer 3 is not in contact with the side wall of the inverted truncated cone groove 12 of the conical expansion bullet 1. Figure 8 As shown, the inverted truncated cone-shaped side wall and bottom plane of the lower end of the shell-breaking hammer head 3 are in surface contact with the side wall and inner bottom surface of the inverted truncated cone-shaped groove 12 of the conical expansion bullet 1 respectively.
[0048] In order to ensure that the shelling hammer 3 extrude the conical expansion bullet 1 more efficiently through the discharge port of the electrolytic cell 4, it is preferably adopted a surface contact method, thereby ensuring that the shelling hammer 3 can give the conical expansion bullet 1 a stable and non-deviation extrusion pressure, reduce the component force, and make the force of the shelling hammer 3 more stable and efficient.
[0049] Among the optional solutions of this embodiment, it is more preferred that Figures 5 to 8 As shown, the shape of the groove 12 is an inverted truncated cone, and the groove 12 is in surface contact with the conical surface formed by the circumferential wear of the lower end of the shelling hammer head 3. Since the lower end of the shelling hammer head 3 is circumferentially worn to form an inverted truncated cone shape after long-term use, the groove 12 is in an inverted truncated cone shape, and it maintains surface contact with the lower end of the shelling hammer head 3, which can ensure that the shelling hammer head 3 has a stable pressure extrusion contact with the conical expansion bullet 1.
[0050] The principle of using the conical expansion bullet 1 is as follows: the conical expansion bullet 1 is placed at the material outlet to be expanded or unblocked, with the small end of the conical expansion bullet 1 at the bottom and the large end at the top. The shell-breaking hammer 3 of the shell-breaking mechanism is pressed on the large end of the conical expansion bullet 1, and the small end of the conical expansion bullet 1 faces downward, with a small contact area and a strong pressure, so that the conical expansion bullet 1 is pressed into the electrolytic cell 4 to expand or unblock the material outlet.
[0051] Embodiment 2
[0052] This embodiment provides a mold for manufacturing an aluminum electrolysis feed opening expander based on the first embodiment, such as Figure 1 to Figure 4 As shown, it includes a mold body 2 and at least one mold cover 22; the mold body 2 has at least one mold cavity 21, and the inner wall and bottom surface shape of the mold cavity 21 match the outer wall and bottom surface shape of the conical expansion bullet 1; the mold cavity 21 has an upper opening, and a mold cover 22 is provided at the upper opening, and the mold cover 22 can close or open the upper opening. The casting liquid used to make the conical expansion bullet 1 is poured into the upper opening of the mold cavity 21, and after the casting liquid is covered with the mold cover 22, the casting liquid is solidified, and the production is completed, which is simple and convenient.
[0053] Among the optional solutions of this embodiment, it is more preferred that Figure 3 and Figure 4 As shown, there are two mold cavities 21 and two mold covers 22. Two mold cavities 21 and two mold covers 22 are used to achieve the production of two conical expansion bullets 1 at a time, thereby improving the production efficiency; and two mold cavities 21 can effectively ensure the production cost.
[0054] Specifically, one end of the mold cover 22 is hinged to the edge of the upper opening of the mold cavity 21 , and the mold cover 22 is turned over and pressed on the upper opening of the mold cavity 21 by its own weight.
[0055] Specifically, the mold cover 22 is also provided with a handle 221 for easy opening and closing.
[0056] Specifically, in order to prevent the mold from cracking under the action of thermal stress, cast steel is used as the material of the mold. At the same time, in order to ensure smooth demoulding, requirements may be made on the surface roughness of the inner wall of the mold cavity 21.
[0057] Specifically, the casting amount can be determined through multiple casting experiments, and the corresponding quantitative containers can be used to achieve complete casting of the conical expansion bullet 1 each time by using only a quantitative container.
[0058] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. An aluminum electrolysis feed port expander, characterized in that: Includes conical expansion bombs; The conical expansion bullet is used to be arranged between the shelling hammer head and the feeding port of the electrolytic cell; The side wall of the lower end of the conical expansion bullet is an inverted cone, the outer diameter of the lower end of the inverted cone is smaller than the outer diameter of the shell hammer, and the outer diameter of the upper end of the inverted cone is larger than the outer diameter of the shell hammer and not larger than the inner diameter of the feed opening of the electrolytic cell; The end of the conical expansion bullet close to the shell hammer head has a groove for pressing and contacting with the shell hammer head, and the upper end edge of the conical expansion bullet can be deformed in a direction close to the axis of the conical expansion bullet after being squeezed and fall into the electrolytic cell through the discharge port of the electrolytic cell; The conical expansion bomb can be melted by the electrolytic cell without affecting the original electrolytic reaction.
2. The aluminum electrolysis feed port expander according to claim 1, characterized in that: The raw materials for making the conical expansion bomb are obtained from the electrolytic cell.
3. The aluminum electrolysis feed port expander according to claim 1, characterized in that: The groove is in the shape of an inverted truncated cone, and the groove is in surface contact with the lower end of the shell-breaking hammer head.
4. A mold for manufacturing an aluminum electrolysis feed port expander according to any one of claims 1 to 3, characterized in that: comprising a mold body and at least one mold cover; The mold body has at least one mold cavity, and the inner side wall and bottom surface shape of the mold cavity match the outer side wall and bottom surface shape of the conical expansion bullet; The mold cavity has an upper opening, and the mold cover is arranged at the upper opening. The mold cover can close or open the upper opening.
5. The production mold according to claim 4, characterized in that: The number of the mold cavities and the number of the mold covers are both two.