Aluminum electrolysis cell inspection system and method

Abstract

The invention discloses an aluminum electrolysis cell inspection system and method, relates to the technical field of aluminum electrolysis, and can prevent an inspection device from being hit and damaged by falling high-temperature waste residues and high-temperature waste blocks falling from an aluminum electrolysis cell so as to accurately measure the temperature of the aluminum electrolysis cell. The aluminum electrolysis cell inspection system comprises an aluminum electrolysis cell. The cradle frame is arranged at the bottom and the outer side wall of the aluminum electrolysis cell, the cradle frame is used for supporting the aluminum electrolysis cell, the cradle frame comprises a side supporting structure and a bottom supporting structure, the bottom supporting structure is arranged at the bottom of the aluminum electrolysis cell, and the side supporting structure is arranged on the outer side wall of the aluminum electrolysis cell; the inspection track is arranged on the side, away from the aluminum electrolysis cell, of the bottom supporting structure and fixedly connected with the bottom supporting structure. The inspection device is movably connected with the inspection track and is used for moving on the inspection track; the inspection device is provided with a signal acquisition module which is used for detecting the temperature of a target position of the aluminum electrolysis cell.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum electrolysis, and in particular to an aluminum electrolysis cell inspection system and method. Background Art

[0002] At present, electrolytic cells are the core equipment for producing aluminum. Electrolytic cell leakage often occurs during production and operation. If no preventive measures are taken, leakage may seriously break the busbar, causing major safety accidents and economic losses, and even causing a series of large-scale shutdowns. Therefore, in order to detect electrolytic cell leakage problems early and take timely measures to avoid further losses, it is necessary to detect and collect the electrolytic cell temperature in a timely manner to determine whether the electrolytic cell has a risk of leakage.

[0003] However, in the prior art, the temperature collection device is easily hit by the high-temperature waste slag dropped from the aluminum electrolytic cell, resulting in a large error in the temperature collection device when detecting the temperature of the aluminum electrolytic cell, and it is impossible to accurately determine whether the aluminum electrolytic cell has a leak. Summary of the invention

[0004] The embodiments of the present application provide an aluminum electrolysis cell inspection system and method to prevent the inspection device from being hit and damaged by high-temperature waste slag and high-temperature waste blocks falling from the aluminum electrolysis cell, so as to accurately measure the temperature of the aluminum electrolysis cell.

[0005] According to a first aspect of an embodiment of the present application, there is provided an aluminum electrolysis cell inspection system, comprising:

[0006] Aluminium electrolysis cells;

[0007] A cradle frame, arranged at the bottom and the outer side wall of the aluminum electrolysis cell, the cradle frame is used to support the aluminum electrolysis cell, wherein the cradle frame includes a side support structure and a bottom support structure, the bottom support structure is arranged at the bottom of the aluminum electrolysis cell, and the side support structure is arranged at the outer side wall of the aluminum electrolysis cell;

[0008] An inspection track is arranged on a side of the bottom support structure away from the aluminum electrolysis cell, and the inspection track is fixedly connected to the bottom support structure;

[0009] An inspection device, movably connected to the inspection track, and configured to move on the inspection track;

[0010] The inspection device is provided with a signal acquisition module, and the signal acquisition module is used to detect the temperature of the target position of the aluminum electrolysis cell.

[0011] In some embodiments, the inspection device includes an inspection device body, a driving mechanism and a moving mechanism, and the driving mechanism and the moving mechanism are both connected to the inspection device body;

[0012] The inspection track includes a first side, a second side, a third side, and a fourth side. The first side is connected to the bottom support structure. The second side is disposed opposite to the first side. The third side is disposed opposite to the fourth side. The third side is connected between the first side and the second side. The fourth side is connected between the first side and the second side. The length extension direction of the third side is the same as the length extension direction of the inspection track.

[0013] The driving mechanism is disposed on the second side. The moving mechanism is disposed on the third side and / or the fourth side. The inspection device body is suspended on the second side of the inspection track.

[0014] In some embodiments, the second side is provided with a tooth groove structure. The third side is provided with a first protrusion and a second protrusion. A first groove is formed between the first protrusion and the second protrusion. The fourth side is provided with a third protrusion and a fourth protrusion. A second groove is formed between the third protrusion and the fourth protrusion.

[0015] The driving mechanism is connected between the inspection device body and the tooth groove structure.

[0016] One end of the moving mechanism is disposed in the first groove and / or the second groove. The other end of the moving mechanism is connected to the inspection device body.

[0017] In some embodiments, the aluminum electrolysis cell inspection system further includes:

[0018] A telescopic bracket, one end of the telescopic bracket is connected to the device body, and the other end is connected to the signal acquisition module.

[0019] The telescopic bracket includes a rotating shaft and at least two telescopic rods. The rotating shaft is used to adjust the acquisition angle of the signal acquisition module.

[0020] The angle adjustment range of the telescopic bracket is from 0 to 360°; and / or,

[0021] The telescopic distance range of the telescopic bracket is from 1 to 20 cm.

[0022] In some embodiments, the inspection track includes a circular track; and / or,

[0023] The inspection track includes an S-shaped track. The inspection track is provided with a positioning and sensing device.

[0024] Wherein, the inspection track includes a plurality of branch tracks, and at least two of the branch tracks are cross-arranged; and / or,

[0025] At least two of the branch tracks are arranged in parallel.

[0026] In some embodiments, the signal acquisition module is provided with a rangefinder and an imager. The rangefinder is used to monitor the distance between the inspection device body and the target position, and the imager is used to generate a temperature distribution image of the target position.

[0027] In some embodiments, there are multiple aluminum electrolytic cells, and the inspection track is arranged on the bottom support structure corresponding to the multiple aluminum electrolytic cells;

[0028] There are multiple signal acquisition modules, and the multiple signal acquisition modules are used to synchronously detect multiple target positions of the aluminum electrolytic cell. Among them, the target positions include the side wall of the aluminum electrolytic cell, the bottom of the aluminum electrolytic cell, and the steel bar of the aluminum electrolytic cell.

[0029] In some embodiments, the aluminum electrolytic cell inspection system further includes:

[0030] A host computer, which is communicatively connected to the inspection device. The host computer is used to send inspection instructions to the inspection device and to receive the inspection data sent by the inspection device. The inspection data includes the temperature data of the target position and the position data of the target position; and / or,

[0031] A dust removal device, located on one side of the inspection device body facing the driving mechanism, and the dust removal device is used to remove the dust on the surface of the driving mechanism; and / or,

[0032] Multiple wireless charging devices are arranged on the fourth side of the inspection track, and the multiple charging devices are arranged at equal intervals along the length extension direction of the inspection channel.

[0033] In the second aspect of the embodiments of the present application, an aluminum electrolytic cell inspection method is provided, including:

[0034] According to the inspection instruction, the inspection device moves to the target position of the aluminum electrolytic cell through the inspection track and generates the position data of the target position;

[0035] According to the inspection instruction, the temperature of the target position of the aluminum electrolytic cell is detected to generate the temperature data of the target position;

[0036] According to the position data and the temperature data, an analysis is performed to determine whether the temperature of the target position on the aluminum electrolytic cell is abnormal.

[0037] In some embodiments, the aluminum electrolytic cell inspection method further includes:

[0038] At intervals of a first preset time, control the inspection device to perform a cyclic detection on one aluminum electrolytic cell; and / or,

[0039] When there are multiple aluminum electrolytic cells, the inspection device is controlled to perform a cyclic inspection on multiple aluminum electrolytic cells at an interval of a second preset time. Among them, the target positions of the cyclic inspection include the side wall of the aluminum electrolytic cell, the bottom of the aluminum electrolytic cell, and the steel bar of the aluminum electrolytic cell; and / or,

[0040] When the inspection track includes multiple branch tracks, there are multiple inspection paths for the aluminum electrolytic cell. According to the target inspection path in the inspection instruction, the temperature of the aluminum electrolytic cell is detected.

[0041] The aluminum electrolytic cell inspection system provided by the embodiment of the present application uses an intelligent control inspection device to replace manual inspection, and places the inspection device under the I-beam at the bottom of the inspection track and the aluminum electrolytic cell, so that the inspection device and the inspection track are far away from the high-temperature area and the live bus of the electrolytic cell, avoiding high-temperature waste slag and high-temperature waste blocks falling from the aluminum electrolytic cell onto the inspection device or the inspection track. During the temperature inspection of the aluminum electrolytic cell, falling blocks and slag above the aluminum electrolytic cell will not affect the inspection track and the inspection device. The inspection device can run smoothly on the inspection track, and the signal acquisition module can also accurately detect the temperature of the target position of the aluminum electrolytic cell, without generating temperature errors due to the influence of high-temperature waste slag, and can timely detect whether the temperature of the target position of the aluminum electrolytic cell is abnormal and accurately judge whether the aluminum electrolytic cell leaks. While improving the accuracy of aluminum electrolytic temperature detection, it improves the safety of the aluminum electrolytic cell inspection system and the operation of the aluminum electrolytic cell. Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of an aluminum electrolytic cell inspection system provided by an embodiment of the present application;

[0043] Figure 2 It is a schematic partial structural diagram of an aluminum electrolytic cell inspection system provided by an embodiment of the present application;

[0044] Figure 3 It is a schematic partial top view of an aluminum electrolytic cell inspection system provided by an embodiment of the present application;

[0045] Figure 4 It is a schematic partial top view of another aluminum electrolytic cell inspection system provided by an embodiment of the present application;

[0046] Figure 5 It is a schematic structural diagram of another aluminum electrolytic cell inspection system provided by an embodiment of the present application;

[0047] Figure 6 It is a schematic flow chart of an aluminum electrolytic cell inspection method provided by an embodiment of the present application. Detailed Embodiments

[0048] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions in the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions in the embodiments of this specification, rather than limitations on the technical solutions of this specification. Without conflict, the technical features in the embodiments of this specification and the embodiments can be combined with each other.

[0049] In this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. The term "more than two" includes two or more than two.

[0050] Currently, the electrolytic cell is the core equipment for producing metallic aluminum. During the production and operation of the electrolytic cell, leakage of the cell sometimes occurs. Without preventive measures, a leakage can seriously break the busbar, leading to major safety accidents and economic losses, and even causing a series of large-scale production stoppages. Therefore, in order to detect the leakage problem of the electrolytic cell at an early stage, take timely measures to avoid further expansion of losses, it is necessary to detect and collect the temperature of the electrolytic cell in a timely manner, and then judge whether there is a risk of leakage in the electrolytic cell.

[0051] However, in the prior art, due to the narrow space of the side shell, steel bars, and bottom of the electrolytic cell, there are problems such as large workload, large data errors, and high safety risks in the existing manual inspection of the temperature of the side wall of the cell shell and steel bars. Some enterprises use a ground device for inspection and temperature measurement. High-temperature waste slag generated by the electrolytic cell is likely to fall on the device body, causing burning and corrosion of the ground device and the detection equipment, and the solid waste slag will block the traveling route of the ground device, making the ground device unable to walk according to the set route, resulting in incomplete and inaccurate ground inspection and monitoring data.

[0052] In the first aspect of the embodiments of this application, an aluminum electrolysis inspection system is provided. Figure 1 It is a schematic structural diagram of an aluminum electrolysis cell inspection system provided for the embodiments of this application. Exemplarily, as Figure 1As shown in the figure, the aluminum electrolysis inspection system includes an aluminum electrolysis cell 1, which is composed of a cell shell 6, cathode steel bars 7, anode carbon blocks 10, anode guide bars 9, cathode carbon blocks 11, a crust breaking and feeding device 12, etc. A cradle 8 is provided at the bottom 16 of the aluminum electrolysis cell 1 and on the outer side wall of the cell shell 6, and the cradle 8 can be used to support the aluminum electrolysis cell. The cradle 8 includes a bottom support structure and a side support structure. The bottom support structure is arranged at the bottom 16 of the aluminum electrolysis cell, and the side support structure is arranged on the outer side wall of the cell shell 6 of the aluminum electrolysis cell. The side support structure can be a frame structure, and the bottom support structure can include I-beams 14. Part of the I-beam 14 structure extends beyond the bottom of the aluminum electrolysis cell, and the I-beam 14 extending beyond the bottom of the aluminum electrolysis cell is located directly below the side support structure and is connected to the side support structure. The inspection track 5 can be arranged below the I-beam 14 extending beyond the aluminum electrolysis cell or below the I-beam 14 at the bottom of the aluminum electrolysis cell. The side support structure and the bottom support structure are connected to form the cradle 8. The inspection track 5 is arranged on the side of the bottom support structure facing away from the aluminum electrolysis cell and is laid below the I-beam 14 of the bottom support structure. The inspection track 5 and the I-beam 14 of the bottom support structure are fixedly connected by a clamp. The inspection device 15 is movably connected to the inspection track 5, and the inspection device 15 can move on the inspection track 5. The inspection device 15 is provided with a signal acquisition module 3. The inspection device 15 can move to the inspection track 5 below the target position of the aluminum electrolysis cell and detect the temperature of the target position of the aluminum electrolysis cell through the signal acquisition module 3. The target position is the corresponding position on the aluminum electrolysis cell that needs to be temperature detected, which is used to reflect the temperature condition of the target position of the aluminum electrolysis cell, and further reflect whether leakage occurs at the target position. The target position can be the cell shell 6, the cathode steel bar 7, or the bottom 16 of the aluminum electrolysis cell bottom. The inspection device 15 moves on the inspection track 5 along a fixed inspection path. By arranging the inspection device 15 and the inspection track 5 below the I-beam 14 at the bottom of the electrolysis cell, the inspection device 15 and the inspection track 5 are kept away from the high-temperature area and the live bus of the electrolysis cell, so as to prevent the high-temperature waste slag and high-temperature waste blocks falling from the aluminum electrolysis cell 1 from falling on the inspection device 15 or the inspection track 5. During the temperature inspection process of the aluminum electrolysis cell 1, the falling blocks and slag above the aluminum electrolysis cell will not affect the inspection track 5 and the inspection device 15. The inspection device 15 can run smoothly on the inspection track 5, and the signal acquisition module 3 can also accurately detect the temperature of the target position of the aluminum electrolysis cell 1 without generating temperature errors due to the influence of high-temperature waste slag. The on-site staff can timely discover whether the temperature of the target position of the aluminum electrolysis cell is abnormal and accurately judge whether leakage occurs in the aluminum electrolysis cell, improving the accuracy of aluminum electrolysis temperature detection while enhancing the safety of the aluminum electrolysis inspection system and the aluminum electrolysis cell operation.

[0053] The aluminum electrolysis cell inspection system provided by the embodiments of the present application uses an intelligent control inspection device to replace manual inspection, and arranges the inspection device and the inspection track under the I-beam at the bottom of the electrolysis cell, so that the inspection device and the inspection track are far away from the high-temperature area and the live busbar of the electrolysis cell, avoiding high-temperature waste slag and waste blocks falling from the aluminum electrolysis cell onto the inspection device or the inspection track. During the temperature inspection of the aluminum electrolysis, falling blocks and slag above the aluminum electrolysis cell will not affect the inspection track and the inspection device. The inspection device can run smoothly on the inspection track, and the signal acquisition module can also accurately detect the temperature of the target position of the aluminum electrolysis cell, without generating temperature errors due to the influence of high-temperature waste slag, and can timely discover whether the temperature of the target position of the aluminum electrolysis cell is abnormal and accurately judge whether the aluminum electrolysis cell has a leakage. While improving the accuracy of aluminum electrolysis temperature detection, it improves the safety of the aluminum electrolysis cell inspection system and the aluminum electrolysis cell operation.

[0054] In some embodiments, the inspection device includes an inspection device body, a driving mechanism, and a moving mechanism. The driving mechanism and the moving mechanism are both connected to the inspection device body. A battery is arranged inside the driving mechanism to wirelessly charge the driving mechanism. The driving mechanism can drive the inspection device body to move on the inspection track, and the moving mechanism is used to connect the inspection device to the inspection track to fix the inspection device body under the inspection track. While the inspection device body driven by the driving mechanism moves on the inspection track, it also drives the moving mechanism to move on the inspection track.

[0055] Figure 2 It is a schematic partial structure diagram of an aluminum electrolysis cell inspection system provided by the embodiments of the present application. Exemplarily, as Figure 2 shown, exemplarily, the inspection track 5 includes a first side 501, a second side 502, a third side 503, and a fourth side 504. The first side 501 is connected to the I-beam 14 of the bottom support structure. The second side 502 is arranged opposite to the first side 501. The third side 503 is connected between the first side 501 and the second side 502. The length extension directions of the third side 503 and the fourth side 504 are the same as the length extension direction of the inspection track 5. Among them, the inspection device body 150 is suspended from the second side 502 of the inspection track 5.

[0056] Exemplarily, referring to Figures 1 to 3, the driving mechanism may include a driving gear 505, and the moving mechanism may include a rail-holding guiding pulley 507. A tooth groove structure 506 is provided on the second side 502 of the inspection track 5. The driving mechanism is connected between the inspection device body and the tooth groove structure 506. The inspection device body 150 moves by meshing the driving gear 505 with the tooth groove structure 506, and the driving gear 505 runs along the length direction of the inspection track 5. A first protrusion 511 and a second protrusion 512 are provided on the third side 503, and a first groove is formed between the first protrusion 511 and the second protrusion 512. A third protrusion 513 and a fourth protrusion 514 are provided on the fourth side 504, and a second groove is formed between the third protrusion 513 and the fourth protrusion 514. One end of the rail-holding guiding pulley 507 may be disposed in the first groove, and one end of the rail-holding guiding pulley 507 may be disposed in the second groove, or both the first groove and the second groove are provided with the rail-holding guiding pulley 507. The other end of the rail-holding guiding pulley 507 is connected to the inspection device body 150, and the inspection device body 150 is fixed below the inspection track 5 through the rail-holding guiding pulley 507. Driven by the driving mechanism, both the inspection device body 150 and the rail-holding guiding pulley 507 can move on the inspection track 5. Through the meshing of the driving mechanism and the tooth groove structure, and the positioning of the moving mechanism for the inspection device body and the inspection track, the inspection device body can move stably on the inspection track, preventing the inspection device from derailing, enabling the inspection device to be accurately positioned, and thus achieving accurate temperature measurement.

[0057] In some examples, a plurality of rail-holding guiding pulleys 507 are provided. The plurality of rail-holding guiding pulleys 507 may be provided on the same side of the inspection track 5 or on different sides. When the plurality of rail-holding guiding pulleys 507 are provided on the same side of the inspection track, the number of the rail-holding guiding pulleys 507 is odd, and among them, the same side may be any one of the third side 503 and the fourth side 504. When the plurality of rail-holding guiding pulleys 507 are provided on different sides of the inspection track 5, the number of the rail-holding guiding pulleys 507 is even, and the plurality of rail-holding guiding pulleys 507 may be symmetrically provided on the third side 503 and the fourth side 504 of the inspection track 5.

[0058] In some examples, the number of the rail-holding guiding pulleys 507 may be set to be even, and at the same time, the number of the driving gears 505 may be set to be odd. It is also possible to set both the number of the rail-holding guiding pulleys 507 and the number of the driving gears 505 to be even, or to set both the number of the rail-holding guiding pulleys 507 and the number of the driving gears 505 to be odd.

[0059] In some embodiments, there are multiple aluminum electrolysis cells, and the inspection track is arranged on the bottom support structures corresponding to the multiple aluminum electrolysis cells. The inspection track can connect multiple aluminum electrolysis cells in series. The inspection device can detect the temperature at the target position of one aluminum electrolysis cell at a time, or can detect the target positions of multiple aluminum electrolysis cells at a time. By connecting multiple aluminum electrolysis cells in series using the inspection track and arranging the inspection track under the I-beam at the bottom of the aluminum electrolysis cell, the temperature detection of multiple aluminum electrolysis cells can be carried out according to a fixed inspection track, avoiding the high-temperature waste slag and waste blocks falling from the aluminum electrolysis cell from affecting the temperature detection of the aluminum electrolysis cell by the inspection device, and improving the safety and accuracy of the inspection operation of the aluminum electrolysis cell inspection system.

[0060] In some examples, the inspection track can be an S-shaped track or a U-shaped track. The inspection track can include multiple branch tracks. The branch tracks can be arranged between the inspection tracks corresponding to multiple target positions of one aluminum electrolysis cell, or can be between the bottom support structures corresponding to multiple aluminum electrolysis cells. The multiple branch tracks can be arranged in a crosswise manner or in parallel with each other. The arrangement of the branch tracks can enable the inspection device to quickly change the running track in case of encountering an obstacle. It can also provide more running path options for the inspection device during the inspection process, enabling the inspection device to quickly reach the target position, improving the detection efficiency of the aluminum electrolysis cell inspection device, and facilitating the staff to timely discover abnormal working conditions of the aluminum electrolysis cell.

[0061] Figure 3 The following is a schematic partial top view of an aluminum electrolysis cell inspection system provided by an embodiment of the present application. Exemplarily, as Figure 3 shown, the inspection track 5 is laid along the I-beam 14 at the bottom of the aluminum electrolysis cell. In the case of one aluminum electrolysis cell, the inspection track 5 is arranged in a U-shape. In the case of connecting two aluminum electrolysis cells in series by the inspection track 5, the inspection track 5 is arranged in an S-shape.

[0062] Figure 4 The following is another schematic partial top view of an aluminum electrolysis cell inspection system provided by an embodiment of the present application. Exemplarily, as Figure 4 shown, in the case of one aluminum electrolysis cell, the inspection track 5 is arranged in a circular shape around the aluminum electrolysis cell 1. In the case of connecting two aluminum electrolysis cells in series by the inspection track 5, the inspection track 5 is arranged in a figure-eight shape.

[0063] It should be noted that the series connection of multiple aluminum electrolysis cells is applicable to U-shaped, S-shaped, figure-eight-shaped or circular shapes, and corresponding selection can be made according to the actual requirements of the inspection task.

[0064] It should be noted that when the inspection track connects one or more aluminum electrolysis cells in series, the inspection track can be closed and connected or open-connected.

[0065] Exemplarily, an aluminum electrolysis cell may be provided with two or three branch tracks. The two tracks may be arranged crosswise, or they may be arranged in parallel. It may also be the case that three tracks are arranged crosswise or three tracks are arranged in parallel.

[0066] In some embodiments, referring to Figure 1 , the inspection system for the aluminum electrolysis cell further includes a telescopic bracket 17. One end of the telescopic bracket 17 is connected to the inspection device body, and the other end is connected to the signal acquisition module 3. The telescopic bracket can adjust the acquisition position of the signal acquisition module 3 so that the signal acquisition module 3 can accurately detect the temperature at the target position on the aluminum electrolysis cell. The telescopic bracket 17 may include a rotating shaft and two telescopic rods, or it may include multiple telescopic rods. The rotating shaft can be used to adjust the rotation angle of the telescopic rod, and the telescopic rod rotates to drive the signal acquisition module to rotate, so as to realize the adjustment of the acquisition angle of the signal acquisition module. The adjustable angle range of the telescopic bracket 17 is from 0 to 360°, and the telescopic distance range of the telescopic bracket 17 is from 1 to 20 cm. By providing the rotating shaft and the telescopic rod, the telescopic and movement of the signal acquisition module can be adjusted to increase the acquisition distance of the signal acquisition module and flexibly adapt to the temperature detection at different target positions.

[0067] Exemplarily, the telescopic rod may include a first telescopic rod, a second telescopic rod, and a third telescopic rod. One end of the first telescopic rod is connected to the sixth side and the seventh side of the inspection device body, where the seventh side is arranged opposite to the sixth side. The other end is sequentially connected to the second telescopic rod and the third telescopic rod, and the third telescopic rod is connected to the signal acquisition module. Adjacent telescopic rods are connected by a rotating shaft. Each telescopic rod can rotate 360°, and the telescopic distance and rotation angle of the telescopic rod can be adjusted accordingly according to the target position.

[0068] In some examples, the target positions of the aluminum electrolysis cell may include the cell shell of the aluminum electrolysis cell, the bus bar of the aluminum electrolysis cell, and the cell bottom of the aluminum electrolysis cell. When the target position is the cell bottom of the aluminum electrolysis cell, the telescopic bracket may include two telescopic rods, the telescopic distance of the telescopic rod may be 10 cm, and the rotation angle of the telescopic rod may be 90°. When the target position is the bus bar of the aluminum electrolysis cell, the telescopic distance of the telescopic rod may be 15 cm, and the rotation angle of the telescopic rod may be 180°. When the target position is the cell shell of the electrolysis cell, the telescopic distance of the telescopic rod may be 20 cm, and the rotation angle of the telescopic rod may be 360°.

[0069] In some embodiments, a plurality of telescopic brackets are provided, and a plurality of signal acquisition modules are provided. The plurality of telescopic brackets can all be arranged on the inspection device body, and one signal acquisition module is arranged on each telescopic bracket. The plurality of signal acquisition modules can synchronously detect a plurality of target positions of the aluminum electrolysis cell. The target disk positions synchronously detected by the plurality of target positions can be the side wall of the aluminum electrolysis cell, the bottom of the aluminum electrolysis cell, and the steel bar of the aluminum electrolysis cell. By providing the plurality of signal acquisition modules, a plurality of target positions can be synchronously detected to quickly complete the temperature detection of the inspection points of the electrolysis cell, improve the inspection efficiency of the inspection device, and facilitate the inspection device to perform high-frequency inspection tasks.

[0070] In some examples, a plurality of target positions to be temperature-measured can be provided on the cell shell of the aluminum electrolysis cell, and the plurality of target positions to be temperature-measured on the cell shell of the aluminum electrolysis cell can be synchronously detected.

[0071] In some examples, a plurality of target positions to be temperature-measured can be provided on the steel bar of the aluminum electrolysis cell, and the plurality of target positions to be temperature-measured on the steel bar of the aluminum electrolysis cell can be synchronously detected.

[0072] In some examples, a plurality of target positions can be provided at the bottom of the aluminum electrolysis cell, and the plurality of target positions to be temperature-measured on the bottom of the aluminum electrolysis cell can be synchronously detected.

[0073] In the embodiments of the present application, by providing a plurality of signal acquisition modules, a plurality of target positions can be synchronously detected to quickly complete the temperature detection of the inspection points of the electrolysis cell, improve the inspection efficiency of the inspection device, and facilitate the inspection device to perform high-frequency inspection tasks.

[0074] In some examples, the signal acquisition module can be equipped with a laser rangefinder and an infrared imager. The rangefinder can include a laser rangefinder. The inspection track is provided with a positioning induction device, and the positioning induction device can include a photoelectric positioning sensor. The light emitted by the laser rangefinder is reflected back to the laser rangefinder via the photoelectric positioning sensor to real-time monitor the distance between the inspection device body and the target position, so that the inspection device can avoid obstacles in time and select the path closest to the target position to move, thereby enabling the inspection device to quickly reach the target position. The imager can include an infrared thermometer and a thermal imager, and can generate temperature data and temperature distribution image data of the target position. By equipping the signal acquisition module with a laser rangefinder and an infrared imager, the distance between the inspection device and the target position can be real-time monitored to perform path transformation and path planning, so that the inspection device can quickly move to the target position and generate the temperature and image of the target position, for on-site staff to more intuitively obtain the temperature data of the target position, improving the detection efficiency and accuracy of the inspection device.

[0075] Figure 5Schematic structural diagram of another aluminum electrolysis cell inspection system provided by an embodiment of the present application. Exemplarily, refer to Figures 1 to 5 As shown, the aluminum electrolysis cell inspection system further includes a host computer 100, and the host computer 100 can remotely control the inspection device 15 to perform temperature detection. The host computer 100 includes an inspection setting module 111, a data storage and display module 112, and a signal receiving and transmitting module 113. The communication module 4 is disposed on the inspection device body 150, and the signal receiving and transmitting module 113 of the host computer 100 is wirelessly communicatively connected to the communication module 4 on the inspection device body 150. The inspection setting module 111 is used to set inspection tasks and send inspection instructions to the communication module 4 on the inspection device body 150 through the signal receiving and transmitting module 113. The inspection tasks may include sending instruction executions to the driving mechanism 154 and the signal acquisition module 3. The driving mechanism 154 drives the inspection device body 150 to run on the inspection track according to the inspection instruction sent by the host computer 100, and the signal acquisition module 3 performs temperature detection on the target position of the aluminum electrolysis cell 1 according to the inspection instruction sent by the host computer 100. Among them, while the inspection device body 150 runs on the inspection track 5, the temperature of the target position of the aluminum electrolysis cell 1 is synchronously detected. The communication module 4 can send the coordinate data of the target position of the aluminum electrolysis cell, the temperature data of the target position, and the operation data of the driving mechanism 154 driving the inspection device body 150 to the signal receiving and transmitting module 103 of the host computer 100. Among them, the operation data of the driving mechanism 154 driving the inspection device body 150 includes data such as the running speed of the driving mechanism and whether the driving mechanism is operating normally. The signal receiving and transmitting module 103 transmits the received target position data of the aluminum electrolysis cell, the temperature data of the target position, and the operation data of the inspection device body 150 to the data storage and display module 112. The data storage and display module 112 can store the real-time temperature data collected by the signal acquisition module 3, the coordinate data of the target position, and the operation data of the driving mechanism 154 driving the inspection device body 150. After the inspection is completed, the host computer 100 generates and outputs an inspection report and archives it for on-site operators to monitor, analyze, and perform early warning display according to the abnormal warning setting value. In addition, during the inspection process, the inspection setting module 111 can also set corresponding inspection paths according to the target inspection positions such as the electrolysis cell shell, steel bars, and cell bottom. The inspection path can be planned according to the laying path of the inspection track and the branch track, or can be changed in real time according to the actual situation. The inspection setting module 111 can set the inspection path of the inspection device body 150 on the inspection track 5 according to specific requirements, and at the same time set the running speed of the inspection device body 150 on the inspection track 5. The inspection setting module 111 can also set the temperature alarm threshold of the target position to warn on-site staff to check for leakage risks of the aluminum electrolysis cell and ensure that the inspection device accurately executes the inspection task according to the predetermined plan.

[0076] In some embodiments, referring to Figures 1 to 5 as shown, the inspection system for an aluminum electrolysis cell further includes a dust removal device 155. The dust removal device 155 is located on the inspection device body 150 and is disposed on the side facing the driving mechanism 154. The dust removal device 155 is wirelessly communicatively connected to the communication module 4, and the upper computer 100 remotely controls the dust removal device 155 to remove the dust on the surface of the driving mechanism 154, so as to prevent dust accumulation during the operation of the driving mechanism 154. The dust removal device 155 can also remove the dust on the surface of the tooth groove structure 506 of the inspection track 5, avoiding dust accumulation in the grooves of the tooth groove structure and affecting the meshing of the driving mechanism 154 with the tooth groove structure.

[0077] In some embodiments, referring to Figure 2 , the inspection system for an aluminum electrolysis cell further includes a plurality of wireless charging devices. The wireless charging devices are arranged on the third protrusion 513 on the fourth side 504 of the inspection track 5, and the plurality of wireless charging devices are arranged at equal intervals along the length extension direction of the inspection passage. The wireless charging device may include an automatic charging device, which can charge the inspection device to ensure the continuous and stable operation of the inspection operation.

[0078] Exemplarily, when the battery power of the inspection device is lower than 80%, the inspection device automatically runs to the nearest self-charging device to supplement the power, or the inspection device runs to the charging device to supplement the power after completing the inspection task.

[0079] In some embodiments, the inspection device further includes a ground control device, and the ground control device may be a handle remote control or a wireless remote control device. In the case of an error reported by the upper computer, the ground control setting can control the inspection device to continue the inspection, avoiding the inspection device from stopping during the inspection process and affecting the normal inspection of the inspection device.

[0080] In the second aspect of the embodiments of the present application, an inspection method for an aluminum electrolysis cell is provided. Figure 6 It is a schematic flowchart of an inspection method for an aluminum electrolysis cell provided by the embodiments of the present application. As Figure 6 shown, the inspection method for an aluminum electrolysis cell includes:

[0081] S101: According to the inspection instruction, the inspection device moves to the target position of the aluminum electrolysis cell through the inspection track, and generates the position data of the target position.

[0082] Exemplarily, a patrol inspection task is set in the patrol inspection setting module 111 of the host computer 100. The patrol inspection task may include the patrol inspection path of the patrol inspection device 15 and the target position of the patrol inspection. The signal receiving and transmitting module 113 sends the patrol inspection instruction to the communication module 4 on the patrol inspection device body 150. The communication module 4 sends the patrol inspection instruction to the driving mechanism 154. The driving mechanism 154 drives the patrol inspection device body 150 to run on the patrol inspection track 5 to the target position according to the patrol inspection instruction in the patrol inspection task, and generates position data of the target position. The position data of the target position may include the real-time position coordinate data of the patrol inspection device body 150 when the patrol inspection device body 150 receives the patrol inspection instruction, the coordinate data of the target position, and the distance data between the patrol inspection device and the target position. The signal acquisition module 3 may also automatically acquire the operating conditions of the driving mechanism. The operating conditions of the driving mechanism include the operating speed of the driving mechanism, whether the driving mechanism is operating normally, etc.

[0083] S102: According to the patrol inspection instruction, perform temperature detection on the target position of the aluminum electrolytic cell to generate temperature data of the target position.

[0084] Exemplarily, referring to Figures 1 to 6 , a patrol inspection task is set in the patrol inspection setting module 111 of the host computer 100. The patrol inspection task may include temperature detection of the monitored target position. The signal receiving and transmitting module 113 sends the patrol inspection instruction to the communication module 4 on the patrol inspection device body 150. The communication module 4 sends the patrol inspection instruction to the signal acquisition module 3. The signal acquisition module 3 performs temperature detection on the target position of the aluminum electrolytic cell 1 according to the patrol inspection instruction sent by the host computer 100. Among them, the patrol inspection device body 150 monitors the temperature of the target position of the aluminum electrolytic cell 1 in real time while running. And generate temperature data of the target position. The temperature data may include the temperature data of the target position and the temperature distribution image data.

[0085] S103: Analyze according to the position data and the temperature data to judge whether the temperature of the target position on the aluminum electrolytic cell is abnormal.

[0086] Exemplarily, referring to Figures 1 to 6, the communication module 4 can send the coordinate data of the aluminum electrolysis target position, the temperature data of the target position, and the operation data of the driving mechanism 154 driving the inspection device body 150 collected by the signal acquisition module 3 on the inspection device body 150 to the signal receiving and transmitting module 113 of the host computer. The signal receiving and transmitting module 113 receives the position data, temperature data, and operation data of the inspection device from the signal acquisition module 3, and transmits the received position data, temperature data of the aluminum electrolysis cell target position, and operation data of the inspection device body 150 to the data storage and display module 112. The data storage and display module 112 can store the real-time temperature data collected by the signal acquisition module 3 for on-site operators to monitor and analyze, and perform early warning display according to the abnormal warning setting value.

[0087] In some embodiments, the aluminum electrolysis cell inspection method further includes: controlling the inspection device to perform a cyclic inspection on one aluminum electrolysis cell at an interval of a first preset time. Exemplarily, the first preset time range can be 20 min to 30 min. In the case where there are multiple aluminum electrolysis cells, controlling the inspection device to perform a cyclic inspection on multiple aluminum electrolysis cells at an interval of a second preset time, and the second preset time range can be 20 min to 200 min. Among them, the target positions of a cyclic inspection include the side wall of the aluminum electrolysis cell, the bottom of the aluminum electrolysis cell, and the steel bar of the aluminum electrolysis cell. The first preset time and the second preset time can be the same or different. When the first preset time and the second preset time are the same, the first preset time and the second preset time can both be 20 min, 23 min, 25 min, 27 min, 29 min, or 30 min. When the first preset time and the second preset time are different, the second preset time can be twice the first preset time. By performing cyclic inspections on the aluminum electrolysis target positions, on the one hand, the accuracy of temperature detection can be improved, and on the other hand, it can be timely detected whether the temperature of the target position of the aluminum electrolysis cell is abnormal, improving the safety of aluminum electrolysis cell operation and the accuracy of temperature detection.

[0088] In some examples, in the case where the inspection track includes multiple branch tracks, there are multiple inspection paths for the aluminum electrolysis cells. According to the target inspection path in the inspection instruction, temperature detection is performed on the aluminum electrolysis cells. The inspection path can be a path selected in real time when the inspection device receives the inspection task, or a path preset by the host computer. The inspection path can be S-shaped, linear, or figure-eight-shaped.

[0089] Exemplarily, the inspection path is generated based on an inspection strategy, which is an algorithm on the host computer and can be used to generate various different inspection tasks. The inspection strategy also includes the target location and the number of inspections for the inspection, which can be to perform temperature detection on the target location two or more times, such as 3 times, 5 times or 7 times. By repeatedly performing temperature detection on the target location multiple times, the temperature condition of the target temperature can be repeatedly verified to timely detect whether the temperature at the target location is abnormal and alert on-site staff, improving the safety of the aluminum electrolysis cell operation.

[0090] In some examples, the host computer can control the inspection device to perform zonal inspections. The bottom of the aluminum electrolysis cell is set as the first inspection area, the steel bar of the aluminum electrolysis cell is set as the second inspection area, and the cell shell of the aluminum electrolysis cell is set as the third inspection area. The host computer can control the inspection device to perform inspections in sequence according to the first inspection area, the second inspection area, and the third inspection area, so as to improve the consistency of the inspection operation, provide stable data support for the data analysis of new plant staff, and improve the accuracy of the inspection system for temperature detection of aluminum electrolysis cells.

[0091] In some instances, the automatic inspection mode of the inspection device includes routine inspection, special inspection, special inspection, and custom inspection. The running speed of the inspection device can include high speed, medium speed, and low speed. For other inspection points of the electrolysis cell except the bottom, steel bar, and cell shell of the aluminum electrolysis cell, the inspection device can be remotely controlled manually to quickly reach the abnormal position. In the case of routine inspection, the inspection device can run at medium speed. In the case of special inspection and special inspection, the inspection device can run at high speed. In the case of custom inspection, the inspection device can run at low speed. The running speed of the inspection device is set according to different inspection modes to improve the inspection efficiency.

[0092] In some examples, taking a 400kA aluminum electrolysis production work area as an example, the total number of aluminum electrolysis cells is 50. A total of 48 steel windows are set on the cell shell of each electrolysis cell, and each steel window corresponds to 1 steel window temperature measurement point, 2 steel rod temperature measurement points, and 1 bottom temperature measurement point. An inspection system is installed on the I-beam at the bottom of the electrolysis cells in this work area, and the tracks between the electrolysis cells are connected in series. The inspection device is controlled by the host computer to run and locate in each inspection area, record the starting, ending, and coordinates of each inspection point, and formulate an inspection path according to the positions of the aluminum electrolysis cells. Among them, the starting coordinate is the real-time position coordinate data of the inspection device when it receives the inspection instruction, and the ending coordinate is the coordinate data of the target position. The inspection device takes 5s to 10s on average to complete the temperature measurement of 1 steel window and the corresponding steel rod and cell bottom positions, which can be 6s, 7s, 8s, or 9s. It takes 200s to 250s to complete the inspection of 1 cell, which can be 210s, 220s, 230s, or 240s. It takes 150min to 250min to complete the temperature measurement of the inspection points of all the electrolysis cells in the work area, which can be 160min, 180min, 200min, or 240min. After the inspection is completed, the host computer's data storage and display module generates and outputs an inspection report and archives it.

[0093] In some examples, taking a 400kA aluminum electrolysis production work area as an example, the temperature of the side steel rods of the aluminum electrolysis cells is on the high side, and there is a risk of furnace leakage. An inspection system is installed under the I-beam at the bottom of the electrolysis cells, and the tracks are laid and installed in a ring shape. The inspection device can be used for continuous temperature measurement. According to the test data analysis, the temperature change trend of the temperature measurement points is judged to provide reference for process adjustment for the operators and ensure the safe and stable operation of the electrolysis cells.

[0094] Taking a certain 400kA aluminum electrolysis production work area as an example, it is necessary to obtain the temperature distribution image of a certain steel window. By installing a thermal imaging module on the signal acquisition module of the inspection device, the inspection device is controlled by the host computer to move to the temperature measurement area, the temperature distribution image of this position is tested by the thermal imager, and it is fed back to the host computer through the communication module, presented in the form of a heat map, and the high-temperature points are marked in real time for the on-site operators to refer to and judge.

[0095] In some examples, the inspection setting module of the host computer can set the automatic inspection mode of the inspection device. The automatic inspection mode can include routine inspection, special inspection, special inspection, and custom inspection. Routine inspection is a cyclic detection of the target positions of the aluminum electrolysis cells. Special inspection is the detection of one or several target positions. Special inspection is the detection of positions with abnormal temperatures. Custom inspection is the detection of target positions set by on-site staff according to the actual operation conditions on site. For the target positions of the aluminum electrolysis cell inspection, the inspection device can be quickly moved to the abnormal position by manually remote-control equipment, or it can be remotely controlled by the host computer to automatically conduct the inspection.

[0096] The inspection method for an aluminum electrolysis cell provided by an embodiment of the present application uses an intelligent control inspection device to replace manual inspection. By arranging the inspection device and the inspection track below the I-beam at the bottom of the aluminum electrolysis cell, the inspection device and the inspection track are kept away from the high-temperature area and the energized busbar of the electrolysis cell, preventing high-temperature waste slag and waste blocks falling from the aluminum electrolysis cell from landing on the inspection device or the inspection track. During the temperature inspection of the aluminum electrolysis, falling blocks and slag above the aluminum electrolysis cell will not affect the inspection track and the inspection device. The inspection device can run smoothly on the inspection track, and the signal acquisition module can accurately detect the temperature at the target position of the aluminum electrolysis cell, without generating temperature errors due to the influence of high-temperature waste slag, and can timely discover whether the temperature at the target position of the aluminum electrolysis cell is abnormal. This improves the accuracy of aluminum electrolysis temperature detection and simultaneously enhances the safety of the aluminum electrolysis cell inspection system and the aluminum electrolysis cell operation.

[0097] It should be noted that in the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailedly described in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0098] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

[0099] Although the preferred embodiments of this specification have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0100] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalent technologies, this specification is also intended to include these modifications and variations.

Claims

1. An aluminum electrolysis cell inspection system, characterized in that: include: Aluminium electrolysis cells; A cradle frame, arranged at the bottom and the outer side wall of the aluminum electrolysis cell, the cradle frame is used to support the aluminum electrolysis cell, wherein the cradle frame includes a side support structure and a bottom support structure, the bottom support structure is arranged at the bottom of the aluminum electrolysis cell, and the side support structure is arranged at the outer side wall of the aluminum electrolysis cell; An inspection track is arranged on a side of the bottom support structure away from the aluminum electrolysis cell, and the inspection track is fixedly connected to the bottom support structure; An inspection device, movably connected to the inspection track, and configured to move on the inspection track; The inspection device is provided with a signal acquisition module, and the signal acquisition module is used to detect the temperature of the target position of the aluminum electrolysis cell.

2. The aluminum electrolysis cell inspection system according to claim 1, characterized in that: The inspection device comprises an inspection device body, a driving mechanism and a moving mechanism, and the driving mechanism and the moving mechanism are both connected to the inspection device body; The inspection track comprises a first side, a second side, a third side and a fourth side, the first side is connected to the bottom support structure, the second side is arranged opposite to the first side, the third side is arranged opposite to the fourth side, the third side is connected between the first side and the second side, the fourth side is connected between the first side and the second side, and the length extension direction of the third side is the same as the length extension direction of the inspection track; The driving mechanism is arranged on the second side, the moving mechanism is arranged on the third side and / or the fourth side, and the inspection device body is suspended on the second side of the inspection track.

3. The aluminum electrolysis cell inspection system according to claim 2, characterized in that: The second side is provided with a tooth groove structure, the third side is provided with a first protrusion and a second protrusion, a first groove is formed between the first protrusion and the second protrusion, the fourth side is provided with a third protrusion and a fourth protrusion, a second groove is formed between the third protrusion and the fourth protrusion; The driving mechanism is connected between the inspection device body and the tooth groove structure; One end of the moving mechanism is arranged in the first groove and / or the second groove, and the other end of the moving mechanism is connected to the inspection device body.

4. The aluminum electrolysis cell inspection system according to claim 3, characterized in that: Also includes: A telescopic bracket, one end of which is connected to the device body, and the other end of which is connected to the signal acquisition module; The telescopic bracket comprises a rotating shaft and at least two telescopic rods, and the rotating shaft is used to adjust the collection angle of the signal collection module; The angle adjustment range of the telescopic bracket is 0 to 360°; and / or, The telescopic distance of the telescopic bracket ranges from 1 to 20 cm.

5. The aluminum electrolysis cell inspection system according to claim 3, characterized in that: The inspection track comprises a circular track; and / or, The inspection track comprises an S-shaped track, and the inspection track is provided with a positioning sensing device; Wherein, the inspection track includes a plurality of branch tracks, and at least two of the branch tracks are cross-arranged; and / or, At least two of the branch tracks are arranged in parallel.

6. The aluminum electrolysis cell inspection system according to claim 2, characterized in that: The signal acquisition module is provided with a rangefinder and an imager. The rangefinder is used to monitor the distance between the inspection device body and the target position, and the imager is used to generate a temperature distribution image of the target position.

7. The aluminum electrolysis cell inspection system according to claim 6, characterized in that: There are a plurality of aluminum electrolysis cells, and the inspection track is arranged on the bottom support structures corresponding to the plurality of aluminum electrolysis cells; The signal acquisition modules are provided in plurality, and the plurality of signal acquisition modules are used to synchronously detect the plurality of target positions of the aluminum electrolysis cell, wherein the target positions include the side wall of the aluminum electrolysis cell, the bottom of the aluminum electrolysis cell and the steel bars of the aluminum electrolysis cell.

8. The aluminum electrolysis cell inspection system according to claim 2, characterized in that: Also includes: A host computer, the host computer is in communication connection with the inspection device, the host computer is used to send inspection instructions to the inspection device, and is used to receive inspection data sent by the inspection device, the inspection data including temperature data of the target position and position data of the target position; and / or, a dust removal device, located on the side of the inspection device body facing the drive mechanism, the dust removal device being used to remove dust from the surface of the drive mechanism; and / or, A plurality of wireless charging devices are disposed on the fourth side of the inspection track, and the plurality of charging devices are arranged equidistantly along the length extension direction of the inspection channel.

9. A method for inspecting an aluminum electrolytic cell, characterized in that: include: According to the inspection instruction, the inspection device moves to the target position of the aluminum electrolytic cell through the inspection track, and generates position data of the target position; According to the inspection instruction, temperature detection is performed on a target position of the aluminum electrolysis cell to generate temperature data of the target position; An analysis is performed based on the position data and the temperature data to determine whether the temperature of the target position on the aluminum electrolysis cell is abnormal.

10. The aluminum electrolysis cell inspection method according to claim 9, characterized in that: Also includes: At intervals of a first preset time, controlling the inspection device to perform a cycle inspection on one of the aluminum electrolytic cells; and / or, When there are multiple aluminum electrolytic cells, at intervals of a second preset time, the inspection device is controlled to perform a cycle detection on the multiple aluminum electrolytic cells, wherein the target positions of the one cycle detection include the side wall of the aluminum electrolytic cell, the bottom of the aluminum electrolytic cell and the steel bar of the aluminum electrolytic cell; and / or, When the inspection track includes a plurality of branch tracks, there are a plurality of inspection paths for the aluminum electrolysis cell, and the temperature of the aluminum electrolysis cell is detected according to the target inspection path in the inspection instruction.

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