Bottom cooling device for aluminum electrolysis cell

Abstract

The utility model relates to a cooling device, and provides an aluminum electrolysis cell bottom cooling device which comprises a supporting rod horizontally arranged below an electrolysis cell, a plurality of fixing seats arranged on the supporting rod, nozzles arranged on the fixing seats, valves arranged on the nozzles, an air guide pipe connected with the nozzles at the same time, and an air blower connected with the air guide pipe. The temperature measuring device is arranged on the fixed seat; the driving device is used for driving the supporting rod to run along the length direction of the electrolytic bath; the length direction of the supporting rod is perpendicular to the length direction of the electrolytic cell, and the nozzle and the temperature measuring device face the electrolytic cell. The cooling device at the bottom of the aluminum electrolysis cell can be used for efficiently cooling the bottom of the electrolysis cell at a fixed point in an energy-saving manner.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for the bottom of an aluminum electrolytic cell. Background Art

[0002] Aluminum electrolytic cells operate in molten salt at temperatures exceeding 900°C. Their cathode linings are subject to long-term corrosion from molten aluminum and electrolyte. The stress generated by this corrosion can cause deformation of the cell and damage to the lining, leading to severe downtime and major repairs. Therefore, during production, the temperature of the cell bottom must be monitored and cooling measures implemented as appropriate.

[0003] Currently, workers monitor and analyze the bottom of aluminum electrolytic cells to cool them with air. They then move the air duct to the lower portion of the cell, targeting the hottest area. This air flow continues until the temperature drops, at which point the air duct is moved to another, hotter area for cooling. While this solution can address the high temperatures at the bottom of the aluminum electrolytic cell, it has significant drawbacks. First, the constant air flow wastes air, as the air flow continues even when the bottom temperature drops. Second, the air flow position must be manually controlled, requiring workers to constantly monitor the air valve, creating safety risks. Therefore, a more automated electrolytic cell bottom cooling system is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a cooling device for the bottom of an aluminum electrolytic cell, which can efficiently and energy-savingly cool the bottom of the electrolytic cell at a fixed point.

[0005] The embodiments of the present invention are realized through the following technical solutions: the bottom cooling device of the aluminum electrolytic cell of the present invention comprises a support rod horizontally arranged below the electrolytic cell, a plurality of fixing seats arranged on the support rod, a nozzle arranged on the fixing seat, a valve arranged on the nozzle, an air duct connected to the plurality of nozzles, a blower connected to the air duct, a temperature measuring device arranged on the fixing seat, and a driving device for driving the support rod to run along the length direction of the electrolytic cell; the length direction of the support rod is perpendicular to the length direction of the electrolytic cell, and the nozzle and the temperature measuring device are both arranged toward the electrolytic cell.

[0006] Furthermore, the valve is a solenoid valve.

[0007] Furthermore, a horizontally arranged support plate is provided on the fixing seat, and the temperature measuring device is arranged on the upper side of one end of the support plate away from the fixing seat.

[0008] Furthermore, the nozzle is arranged at an angle, and the upper end of the nozzle is inclined toward the temperature measuring device.

[0009] Furthermore, a long strip-shaped air diffusion nozzle is provided at the upper end of the nozzle, and the length direction of the air diffusion nozzle is perpendicular to the length direction of the electrolytic cell.

[0010] Furthermore, a plurality of horizontally arranged guide plates are provided at the bottom of the electrolytic cell; the length direction of the guide plates is parallel to the length direction of the electrolytic cell, and the plurality of guide plates are distributed along the width direction of the electrolytic cell.

[0011] Furthermore, the driving device includes a guide rail horizontally arranged below the electrolytic cell, a motor, a screw connected to the output shaft of the motor, and a slider fixedly connected to the middle part of the support rod; the length direction of the guide rail is parallel to the length direction of the electrolytic cell, the slider is slidably arranged on the guide rail, and the screw is threadedly connected to the slider.

[0012] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects: the bottom cooling device of the aluminum electrolytic cell of the present utility model, when in use, drives the support rod through the driving device to drive multiple nozzles to move back and forth along the length direction of the bottom of the electrolytic cell. During the movement, the temperature measuring device measures the temperature of the bottom of the electrolytic cell in real time. When one or some temperature measuring devices detect that the temperature of a certain area at the bottom of the electrolytic cell is high, the support rod stops moving, the blower is started and the corresponding valve is opened, and normal temperature air is sprayed through the nozzle to cool the bottom of the electrolytic cell. When the temperature is lower than the set value, the air jet is stopped, and the driving device drives the support rod to continue moving to detect the temperature conditions of the remaining parts. When the temperature measured by the temperature measuring device is lower than the set value, the support rod stops moving, and when it is higher than the set value, it continues to move. This not only can efficiently cool the bottom of the electrolytic cell, but also can automatically open and close according to the temperature conditions, which can effectively save energy and does not require manual intervention, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A schematic structural diagram of a cooling device for the bottom of an aluminum electrolytic cell according to an embodiment of the present invention from one perspective;

[0015] Figure 2 A schematic structural diagram of a cooling device for the bottom of an aluminum electrolytic cell from two perspectives according to an embodiment of the present invention;

[0016] Figure 3 A schematic structural diagram of a cooling device for the bottom of an aluminum electrolytic cell from three perspectives provided by an embodiment of the present utility model;

[0017] Figure 4 A schematic structural diagram of the guide rail portion provided in an embodiment of the present utility model;

[0018] Figure 5 This is a schematic structural diagram of the support rod portion provided in an embodiment of the present utility model.

[0019] Icons: 11-electrolyzer, 12-guide plate, 21-support rod, 22-fixed seat, 23-nozzle, 24-valve, 25-air guide tube, 26-air expansion nozzle, 27-support plate, 28-temperature measuring device, 29-slider, 31-guide rail, 32-screw, 33-motor. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 5 As shown, the cooling device for the bottom of the aluminum electrolytic cell of this embodiment includes a support rod 21 horizontally arranged below the electrolytic cell 11, a plurality of fixing seats 22 arranged on the support rod 21, a nozzle 23 arranged on the fixing seat 22, a valve 24 arranged on the nozzle 23, an air duct 25 connected to the plurality of nozzles 23, a blower connected to the air duct 25, a temperature measuring device 28 arranged on the fixing seat 22, and a driving device for driving the support rod 21 to move along the length direction of the electrolytic cell 11; the length direction of the support rod 21 is perpendicular to the length direction of the electrolytic cell 11, and the nozzle 23 and the temperature measuring device 28 are both arranged toward the electrolytic cell 11. Specifically, when in use, the driving device drives the support rod 21 to drive multiple nozzles 23 to move back and forth along the length direction of the bottom of the electrolytic cell 11. During the movement, the temperature measuring device 28 measures the temperature of the bottom of the electrolytic cell 11 in real time. When one or some temperature measuring devices 28 detect that the temperature of a certain area at the bottom of the electrolytic cell 11 is high, the support rod 21 stops moving, the blower is started and the corresponding valve 24 is opened, and normal temperature air is sprayed through the nozzle 23 to cool the bottom of the electrolytic cell 11. When the temperature is lower than the set value, the air jet is stopped, and the driving device drives the support rod 21 to continue moving to detect the temperature of the remaining parts. When the temperature measured by the temperature measuring device 28 is lower than the set value, the support rod 21 stops moving. When it is higher than the set value, it continues to move. This not only can efficiently cool the bottom of the electrolytic cell 11, but also can automatically open and close according to the temperature situation, which can effectively save energy and does not require manual intervention, which is more efficient.

[0027] The valve 24 in this embodiment is a solenoid valve. Specifically, this can realize the automatic opening and closing of the nozzle 23 according to the temperature measured by the temperature measuring device 28. Since both the support rod 21 and the nozzle 23 need to be moved, it is more appropriate to use a solenoid valve. If an air valve is used, a large number of pipelines need to be laid. In addition, the temperature measuring device 28 can use a common infrared thermometer. By setting the corresponding program and coordinating with a common PLC circuit, the temperature measured by the temperature measuring device 28 can be compared with the preset temperature value, and the opening and closing of the valve 24 and the operation of the drive device can be judged by the size. Specifically, the corresponding settings and adjustments can be made according to the usage and high temperature resistance of the electrolytic cell 11 itself.

[0028] In this embodiment, a horizontal support plate 27 is mounted on the fixed base 22, and a temperature measuring device 28 is located on the upper side of the end of the support plate 27 away from the fixed base 22. The nozzle 23 is tilted, with the upper end of the nozzle 23 tilted toward the temperature measuring device 28. Specifically, the tilted nozzle 23 allows the cold air to flow along the bottom of the electrolytic cell 11, achieving a wider range of cooling and fully utilizing the cold air.

[0029] In this embodiment, the upper end of the nozzle 23 is provided with a long diffuser nozzle 26, the length of which is perpendicular to the length of the electrolytic cell 11. Specifically, the long diffuser nozzle 26 can achieve a wider range of blowing and better dissipate heat over a large area of ​​high temperature.

[0030] In this embodiment, the bottom of the electrolytic cell 11 is provided with a plurality of horizontally arranged guide plates 12. The length direction of the guide plates 12 is parallel to the length direction of the electrolytic cell 11, and the plurality of guide plates 12 are distributed along the width direction of the electrolytic cell 11. Specifically, the guide plates 12 can better guide the flow of air and more fully utilize air for cooling.

[0031] The drive device in this embodiment includes a guide rail 31 horizontally disposed below the electrolytic cell 11, a motor 33, a screw 32 connected to the output shaft of the motor 33, and a slider 29 fixedly connected to the middle portion of the support rod 21. The length of the guide rail 31 is parallel to the length of the electrolytic cell 11. The slider 29 is slidably mounted on the guide rail 31, and the screw 32 is threadedly connected to the slider 29. Specifically, the motor 33 drives the screw 32 to rotate, thereby driving the slider 29, the support rod 21, the fixed base 22, and the nozzle 23 to reciprocate, similar to the structure of a ball screw.

[0032] In summary, the aluminum electrolytic cell bottom cooling device of this embodiment, when in use, drives the support rod 21 through the driving device to drive multiple nozzles 23 to move back and forth along the length direction of the bottom of the electrolytic cell 11. During the movement, the temperature measuring device 28 measures the temperature of the bottom of the electrolytic cell 11 in real time. When one or some temperature measuring devices 28 detect that the temperature of a certain area at the bottom of the electrolytic cell 11 is high, the support rod 21 stops moving, the blower is started and the corresponding valve 24 is opened, and normal temperature air is sprayed through the nozzle 23 to cool the bottom of the electrolytic cell 11. When the temperature is lower than the set value, the air jet is stopped, and the driving device drives the support rod 21 to continue moving to detect the temperature of the remaining parts. When the temperature measured by the temperature measuring device 28 is lower than the set value, the support rod 21 stops moving, and when it is higher than the set value, it continues to move. This not only can efficiently cool the bottom of the electrolytic cell 11, but also can automatically open and close according to the temperature situation, which can effectively save energy and does not require manual intervention, which is more efficient.

[0033] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cooling device for the bottom of an aluminum electrolytic cell, characterized by: The invention comprises a support rod (21) horizontally arranged below the electrolytic cell (11), a plurality of fixing seats (22) arranged on the support rod (21), a nozzle (23) arranged on the fixing seat (22), a valve (24) arranged on the nozzle (23), an air duct (25) connected to the plurality of nozzles (23), a blower connected to the air duct (25), a temperature measuring device (28) arranged on the fixing seat (22), and a driving device for driving the support rod (21) to move along the length direction of the electrolytic cell (11); The length direction of the support rod (21) is perpendicular to the length direction of the electrolytic cell (11), and the nozzle (23) and the temperature measuring device (28) are both arranged toward the electrolytic cell (11).

2. The cooling device for the bottom of an aluminum electrolysis cell according to claim 1, characterized in that: The valve (24) is a solenoid valve.

3. The cooling device for the bottom of an aluminum electrolysis cell according to claim 1, characterized in that: A horizontally arranged support plate (27) is provided on the fixing seat (22), and the temperature measuring device (28) is provided on the upper side of one end of the support plate (27) away from the fixing seat (22).

4. The bottom cooling device for an aluminum electrolysis cell according to claim 3, characterized in that: The nozzle (23) is arranged to be inclined, and the upper end of the nozzle (23) is inclined toward the temperature measuring device (28).

5. The bottom cooling device for an aluminum electrolysis cell according to claim 1, characterized in that: A long strip-shaped air diffusion nozzle (26) is provided at the upper end of the nozzle (23), and the length direction of the air diffusion nozzle (26) is perpendicular to the length direction of the electrolytic cell (11).

6. The aluminum electrolysis cell bottom cooling device according to claim 1, characterized in that: A plurality of horizontally arranged guide plates (12) are provided at the bottom of the electrolytic tank (11); The length direction of the guide plate (12) is parallel to the length direction of the electrolytic cell (11), and a plurality of the guide plates (12) are distributed along the width direction of the electrolytic cell (11).

7. The aluminum electrolysis cell bottom cooling device according to claim 1, characterized in that: The driving device comprises a guide rail (31) horizontally arranged below the electrolytic cell (11), a motor (33), a screw (32) connected to the output shaft of the motor (33), and a slider (29) fixedly connected to the middle part of the support rod (21); The length direction of the guide rail (31) is parallel to the length direction of the electrolytic cell (11), the slider (29) is slidably arranged on the guide rail (31), and the screw (32) is threadedly connected to the slider (29).

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