Material level detection and material leakage alarm device for material box of aluminum electrolysis cell

Abstract

The utility model discloses an aluminum electrolysis cell workbin material level detection and material leakage alarm device which comprises a vertical rod, a contact part is arranged at the lower end of the vertical rod, a sliding rail is arranged at the upper end of the workbin in an upward extending mode and located beside the vertical rod, and a sliding block is arranged on the sliding rail in a sliding mode in the vertical direction. A sliding block is arranged in the vertical rod, a limiting structure is arranged and can limit sliding of the sliding block or release limitation, a pressure sensor is arranged on the top face of the sliding block, an alarm system is arranged and electrically connected to the pressure sensor, and a pressing block is arranged on the upper side of the vertical rod. After villiaumite is poured into the material box, the contact part is arranged on the top surface of the villiaumite, the material level in the material box can be known according to the length (height) of the vertical rod exposed above the material box, and when the material box discharges materials, the contact part moves downwards along with the reduction of the material level, so that the material level in the material box can be detected and displayed in real time, and the material level in the material box can be detected and displayed in real time. And a relatively accurate basis is provided for formulating a material supplementing plan.

Description

Technical Field

[0001] This utility model relates to a material level detection and leakage alarm device for aluminum electrolysis raw material tanks, specifically to a material level detection and leakage alarm device for aluminum electrolysis cell tanks. Background Technology

[0002] In the aluminum electrolysis production process, raw materials such as alumina and fluoride salts need to be added to the electrolytic cell as needed. Currently, raw materials are usually stored in a material bin, fed in batches using a constant volume feeder, and checked for abnormalities such as empty bins or leaks by manually opening the material bin to observe inside.

[0003] In aluminum electrolysis production, leakage of fluoride salts or empty hoppers are common occurrences. Both leakage and emptiness lead to the disordered addition of fluoride salts, causing abrupt changes in molecular ratio parameters, resulting in abnormal cell conditions and impacting production. However, the method of workers opening the hopper to observe inside cannot provide real-time monitoring of empty or leaking hoppers, nor can it detect the material level within the hopper in real time, making it impossible to provide a precise basis for formulating replenishment plans. Utility Model Content

[0004] This application provides a material level detection and leakage alarm device for aluminum electrolytic cell hoppers, which can solve the following problems: the method of workers opening the hopper to observe inside cannot achieve real-time monitoring of empty or leaking hoppers, and cannot detect the material level inside the hopper in real time, making it impossible to provide a more accurate basis for formulating replenishment plans.

[0005] To solve the above technical problems, an aluminum electrolysis cell material box level detection and leakage alarm device is provided, including a vertical rod, which is slidably connected to the upper end of the material box along the vertical direction. The lower end of the vertical rod is provided with a contact part, which is located inside the material box. The upper end of the material box extends upward and is provided with a slide rail located next to the vertical rod. A slider is slidably provided on the slide rail along the vertical direction, and a limit structure is provided to restrict or release the sliding of the slider. A pressure sensor is provided on the top surface of the slider, and an alarm system is electrically connected to the pressure sensor. A pressure block is provided on the upper side of the vertical rod, and the position of the pressure block corresponds to that of the pressure sensor.

[0006] In one embodiment, the limiting structure includes a plurality of positioning holes arranged vertically on the slide rail and threaded holes on the slider. The threaded holes correspond to the positioning holes and are provided with bolts that can pass through the positioning holes and be screwed into or out of the threaded holes.

[0007] In one embodiment, the contact portion is a horizontally arranged sheet.

[0008] In one embodiment, the lower end of the vertical rod has multiple forks, and each fork is provided with a contact portion.

[0009] In one embodiment, the height from the contact portion on the vertical rod to the pressure block is equal to the height of the inner cavity and top of the material box plus the height of the slider and the pressure sensor, and a scale with the zero mark below is provided vertically on or beside the slide rail.

[0010] In one embodiment, a handle is provided at the top of the vertical rod.

[0011] In one embodiment, the alarm system includes an LED warning light and a buzzer.

[0012] In summary, the aluminum electrolysis cell material level detection and leakage alarm device disclosed in this application has the following advantages compared to the prior art:

[0013] (1) After pouring fluoride salt into the hopper, place the contact part on the top surface of the fluoride salt. The material level in the hopper can be known based on the length (height) of the vertical rod protruding above the hopper. When the hopper is discharging material, the contact part will also move down as the material level decreases. Therefore, the material level in the hopper can be detected and displayed in real time, providing a more accurate basis for formulating a replenishment plan.

[0014] (2) When the material box is empty, it can also be seen by the length of the vertical bar protruding above the material box (the protruding part will be very short).

[0015] (3) When the material box is not filled, slide the slider to move the pressure sensor to a position with a short interval at the lower end of the pressure block. When leakage occurs, the pressure block will drop down and contact the pressure sensor. After contact, the pressure sensor will send a signal to control the alarm system to issue an alarm, reminding the staff that leakage has occurred, so that the staff can find the problem in time and avoid disorderly addition of fluoride due to leakage or empty hopper. Attached Figure Description

[0016] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:

[0017] Figure 1 A perspective view of a material level detection and leakage alarm device for an aluminum electrolytic cell hopper;

[0018] Figure 2 for Figure 1 A magnified view of area A in the middle;

[0019] Figure 3Rear view of a material level detection and leakage alarm device for an aluminum electrolysis cell hopper;

[0020] Figure 4 for Figure 3 A cross-sectional view of the middle edge BB;

[0021] Figure 5 for Figure 4 A magnified view of area C in the middle;

[0022] Figure 6 A side view of a material level detection and leakage alarm device for an aluminum electrolysis cell hopper;

[0023] Figure 7 for Figure 6 A sectional view along the middle DD.

[0024] In the diagram, 1. Vertical rod; 2. Contact part; 3. Pressure block; 4. Handle; 5. Material box; 7. Feed inlet; 8. Discharge outlet; 9. Slide rail; 10. Positioning hole; 11. Scale sticker; 12. Slide groove; 13. Slider; 14. Pressure sensor; 15. Threaded hole; 17. Bolt; 18. LED warning light; 19. Buzzer; 20. Wire. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0027] Please see Figures 1-5 A material level detection and leakage alarm device for an aluminum electrolytic cell hopper includes a vertical rod 1, which is slidably connected to the upper end of a hopper 5 (the hopper 5 has an inlet 7 at the upper end and an outlet 8 at the lower end). A through hole is vertically formed at the upper end of the hopper 5 for the vertical rod 1 to slide. A contact part 2 is fixedly welded to the lower end of the vertical rod 1. The contact part 2 is located inside the hopper 5 and is used to contact the top surface of the fluoride salt in the hopper 5.

[0028] Please see Figure 2 , Figure 6 , Figure 7 The upper end of the material box 5 extends upward and is fixedly provided with a slide rail 9 located next to the vertical rod 1. A slider 13 is slidably disposed on the slide rail 9 along the vertical direction. In one embodiment, the slide rail 9 has a vertical groove 12 for the slider 13 to slide on. The cross-section of the groove 12 is convex, which makes the sliding effect more stable.

[0029] Please see Figure 1 , Figure 2 , Figure 3 The limiting structure can restrict or release the sliding of the slider 13. When the position of the slider 13 needs to be adjusted, the restriction on the sliding of the slider 13 is released; when the position of the slider 13 needs to be fixed, the sliding of the slider 13 is restricted. In one embodiment, the limiting structure includes a plurality of (in a row) vertically arranged positioning holes 10 on the slide rail 9 and a threaded hole 15 on the slider 13. The threaded hole 15 corresponds to the positioning hole 10, and a bolt 17 is provided that can pass through the positioning hole 10 and be screwed into or out of the threaded hole 15. With this configuration, the sliding of the slider 13 is restricted or released by screwing in or out of the bolt 17, which is simple to operate and easy to implement.

[0030] Please see Figure 2 A pressure sensor 14 is fixedly installed on the top surface of the slider 13, and an alarm system is electrically connected to the pressure sensor 14 via a wire 20. A pressure block 3 is fixed on the upper side of the vertical rod 1 by welding. The pressure block 3 is positioned opposite to the pressure sensor 14, so that the pressure block 3 can press on the sensitive element of the pressure sensor 14 as it descends.

[0031] Please see Figure 5 In one embodiment, the contact portion 2 is a horizontally arranged sheet, preferably rectangular or circular. This arrangement increases the contact area between the contact portion 2 and the top surface of the fluoride salt, resulting in a more stable structure.

[0032] Please see Figure 5 In one embodiment, the lower end of the vertical rod 1 has multiple L-shaped forks, and each fork has a contact part 2 at its lower end. All of these contact parts 2 are located in the same horizontal plane. This arrangement allows the multiple contact parts 2 to contact the top surface of the fluoride salt, making the display effect of the material level less susceptible to the influence of local depressions or unevenness on the top surface of the fluoride salt.

[0033] Please see Figure 4In one embodiment, the height from the contact portion 2 on the vertical rod 1 to the pressure block 3 is equal to the height of the inner cavity and top of the material box 5 plus the height of the slider 13 and the pressure sensor 14. The slide rail 9 or one side of it is vertically provided with a scale with the zero mark at the bottom. This can be achieved by attaching a scale sticker 11 to the slide rail 9. Furthermore, the zero mark on the scale sticker 11 starts from the position of the top surface of the pressure sensor 14 when the slider 13 slides to the top surface of the material box 5. With this setting, the reading of the pressure block 3 position relative to the scale sticker 11 is the specific material level height in the material box 5.

[0034] Please see Figure 2 In one embodiment, a handle 4 is fixed to the top of the vertical rod 1 by welding, so that the staff can lift the vertical rod 1 to control its raising and lowering.

[0035] Please see Figure 2 In one embodiment, the alarm system includes an LED warning light 18 and a buzzer 19. When the alarm system is triggered, the LED warning light 18 can flash to provide a visual alarm effect, and the buzzer 19 can provide an auditory alarm effect, making it easier for staff to detect abnormal situations.

[0036] The working steps of this utility model are briefly described below:

[0037] 1. When pouring material into the hopper 5, first lift the vertical rod 1 to ensure that it will not be submerged in the fluoride salt. After pouring, lower the vertical rod 1 and place the contact part 2 on the top surface of the fluoride salt. The material level in the hopper 5 can be determined by the length (height) of the vertical rod 1 protruding above the hopper 5.

[0038] 2. When the material bin 5 is not filled, slide the slider 13 to move the pressure sensor 14 to a position with a shorter interval at the lower end of the pressure block 3. When leakage occurs, the pressure block 3 will drop down and contact the pressure sensor 14. After contact, the pressure sensor 14 will send a signal to control the alarm system to sound an alarm, reminding the staff that leakage has occurred. This allows the staff to find the problem in time and avoid disorderly addition of fluoride due to leakage or empty bin.

[0039] 3. Before feeding material, the slider 13 is first moved down below the zero mark so that the pressure block 3 will not be blocked when the material level drops. When feeding material, the contact part 2 will also move down as the material level drops, so the material level in the hopper 5 can be detected and displayed in real time, providing a more accurate basis for formulating a replenishment plan.

[0040] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0042] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A material level detection and leakage alarm device for an aluminum electrolytic cell hopper, characterized in that, The device includes a vertical rod (1), which is slidably connected to the upper end of a material box (5) in a vertical direction. The lower end of the vertical rod (1) is provided with a contact part (2), which is located inside the material box (5). The upper end of the material box (5) extends upward and is provided with a slide rail (9) located next to the vertical rod (1). A slider (13) is slidably provided on the slide rail (9) in a vertical direction, and a limit structure is provided to restrict the sliding of the slider (13) or release the restriction. A pressure sensor (14) is provided on the top surface of the slider (13), and an alarm system is electrically connected to the pressure sensor (14). A pressure block (3) is provided on the upper side of the vertical rod (1), and the position of the pressure block (3) corresponds to that of the pressure sensor (14).

2. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, The limiting structure includes a plurality of positioning holes (10) arranged vertically on the slide rail (9) and threaded holes (15) on the slider (13). The threaded holes (15) correspond to the positioning holes (10) and are provided with bolts (17) that can pass through the positioning holes (10) and be screwed into or out of the threaded holes (15).

3. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, The contact portion (2) is a horizontally arranged sheet.

4. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, The lower end of the vertical rod (1) has multiple branches, and each branch is provided with a contact part (2).

5. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, The height from the contact part (2) on the vertical rod (1) to the pressure block (3) is equal to the height of the inner cavity and top of the material box (5) plus the height of the slider (13) and the pressure sensor (14). The slide rail (9) or one side of it is vertically provided with a scale with the zero mark below it.

6. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, A handle (4) is provided at the top of the vertical rod (1).

7. The aluminum electrolytic cell material level detection and leakage alarm device according to claim 1, characterized in that, The alarm system includes an LED warning light (18) and a buzzer (19).

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