A device for monitoring the displacement of a large aluminum electrolysis anode bus

Abstract

This utility model relates to the field of aluminum electrolysis anode busbar offset monitoring technology, specifically a monitoring device for aluminum electrolysis anode busbar offset. It includes multiple monitoring units arranged side-by-side, a lateral spacing adjustment mechanism spaced apart from the first monitoring unit, a self-locking reel and a turns sensor spaced apart on one side of the lateral spacing adjustment mechanism, and a traction rope connected to the self-locking reel. Each monitoring unit includes a height adjustment mounting mechanism, a vertical sliding groove on one side of the height adjustment mounting mechanism, a spring connected to the lower side of the vertical sliding groove, a slider connected to the upper end of the spring and slidingly engaged with the inner wall of the vertical sliding groove, a scale on one side of the vertical sliding groove, and a wire ring on the lower side of the internal threaded cylinder. This device can simultaneously monitor busbar offset at multiple points, accurately reflecting the offset amount through the cooperation of the spring, slider, and scale, ensuring data accuracy, and can also quickly locate the offset unit for timely troubleshooting.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis anode large busbar offset monitoring technology, specifically a monitoring device for aluminum electrolysis anode large busbar offset. Background Technology

[0002] The anode busbar plays a crucial role in transmitting high-intensity current within the electrolytic cell. If the anode busbar shifts, it will lead to uneven current distribution, consequently affecting the electrolytic cell's production efficiency and product quality.

[0003] In the prior art, a monitoring device for the offset of the anode busbar in aluminum electrolysis, disclosed in CN222165934U, has the following operating procedure: First, the level plate is adjusted to be horizontal. Then, the lifting block is moved upward by rotating the lead screw, which simultaneously moves the frame, sliding block, cylinder, and wear-resistant copper alloy contact upward, so that the wear-resistant copper alloy contact contacts one end of the bottom side of the anode busbar. When the frame continues to move upward, the reaction force compresses the spring, and the scale indicated by the pointer changes accordingly until the pointer aligns with the zero mark. At this point, the lead screw is stopped, and this is used as a reference position. If it is necessary to monitor the offset of multiple positions of the busbar, the device needs to be moved to the corresponding position, and the wear-resistant copper alloy contact is brought back into contact with the bottom side of the monitoring point. The position of the pointer is then observed. If the pointer is above the zero mark, the busbar at the monitored point has offset upward; otherwise, it has offset downward.

[0004] However, the existing technology has the following shortcomings: First, the device is designed for single-point monitoring, requiring each monitoring point to be moved and aligned individually, making it impossible to achieve simultaneous monitoring at multiple locations, resulting in low efficiency; Second, if the busbar has shifted before the pointer aligns with the zero mark during monitoring, the pointer position cannot accurately reflect the actual shift, which can easily lead to data distortion; Third, when a section of the busbar shifts, manual point-by-point inspection is required to determine the specific location, which is not only time-consuming and labor-intensive, but may also affect the normal operation of the electrolytic cell if not handled in a timely manner. Utility Model Content

[0005] The purpose of this invention is to provide a monitoring device for the offset of the large busbar of aluminum electrolysis anode, which solves the problems of existing devices that are single-point monitoring, require one-by-one movement for alignment, cannot monitor multiple positions simultaneously, and are inefficient; if the busbar offsets before the pointer returns to zero, the pointer cannot accurately reflect the offset, which can easily lead to data distortion; and when a section of the busbar is offset, it is necessary to manually check each point, which is time-consuming, labor-intensive, and may delay the processing and affect the operation of the electrolytic cell.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a monitoring device for the offset of the large busbar of an aluminum electrolysis anode, comprising multiple monitoring units arranged side by side, and further comprising a lateral spacing adjustment mechanism spaced apart from the first monitoring unit, a self-locking reel and a turns sensor spaced apart on one side of the lateral spacing adjustment mechanism, and a traction rope connected to the self-locking reel; the traction rope passes through multiple monitoring units in sequence and is fixedly connected to the tail monitoring unit; the monitoring unit comprises a height adjustment mounting mechanism, a vertical sliding groove on one side of the height adjustment mounting mechanism, a spring connected to the lower side of the interior of the vertical sliding groove, a slider connected to the upper end of the spring and slidingly engaged with the inner wall of the vertical sliding groove, an internally threaded cylinder vertically connected to the upper side of the slider and located outside the vertical sliding groove, a screw threadedly connected to the internally threaded cylinder, a wear-resistant copper alloy contact on the upper end of the screw for contacting the large busbar of the anode, a scale on one side of the vertical sliding groove, and a wire ring on the lower side of the internally threaded cylinder; the wire ring is clearance-fitted with the traction rope, and one end of the traction rope is connected to the wire ring of the tail monitoring unit.

[0007] Furthermore, the lateral spacing adjustment mechanism includes a fixed block, a movable seat spaced apart from the fixed block, a plurality of threaded posts arranged in a ring at intervals on one side of the fixed block, and two nuts threadedly connected to the threaded posts; the two nuts respectively abut against the two sides of the movable seat; the threaded posts penetrate the movable seat and extend to one side thereon.

[0008] Furthermore, the self-locking reel includes a reel column rotatably connected to one side of the movable seat via a bearing, a baffle plate respectively disposed on the outer wall and one end of the reel column, a fixing ring disposed on one side of the movable seat and sleeved on the outer wall of the reel column, and a spiral spring disposed on the inner wall of the fixing ring; the inner end of the spiral spring is connected to the outer wall of the reel column.

[0009] Furthermore, the height adjustment mounting mechanism includes a fixed seat, a movable seat that slides with one side of the fixed seat, two rows of first mounting holes on one side of the fixed seat, two rows of second mounting holes on one side of the movable seat, and multiple connecting pieces passing through the first and second mounting holes; the fixed seat and the movable seat are threadedly connected by the first mounting holes, the second mounting holes, and the connecting pieces; the vertical sliding groove is provided on one side of the movable seat and located between the two rows of second mounting holes; a row of first mounting holes and a row of second mounting holes are arranged in multiples from top to bottom.

[0010] Furthermore, one side of the slider is provided with a pointer that slides in cooperation with one side of the vertical sliding groove, and the pointing end of the pointer corresponds to the scale surface of the ruler.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention utilizes multiple monitoring units arranged side-by-side to simultaneously monitor the offset of the anode busbar at multiple locations, achieving multi-point synchronous monitoring. The combination of springs, sliders, screws, and wear-resistant copper alloy contacts, along with a scale, accurately reflects the busbar offset, ensuring the accuracy of the monitoring data. The gap fit between the conductor ring and the traction rope, combined with a self-locking reel and a turns sensor, allows for rapid location of the monitoring unit exhibiting offset, facilitating timely troubleshooting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the monitoring device for the offset of the large busbar of the aluminum electrolysis anode according to this utility model;

[0014] Figure 2 This is a schematic diagram of the monitoring unit of this utility model;

[0015] Figure 3 This is a schematic diagram of the monitoring unit of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is a schematic diagram of the lateral spacing adjustment mechanism and the self-locking winding device of this utility model;

[0018] Figure 6 This is a side view of the self-locking cable reel of the present invention;

[0019] Figure 7 This is a partial cross-sectional schematic diagram of the self-locking cable reel of this utility model.

[0020] In the diagram: 1. Fixed seat; 2. Movable seat; 3. Vertical sliding groove; 4. Fixed block; 5. Traction rope; 6. Screw; 7. Internal threaded cylinder; 8. Spring; 9. Slider; 10. Moving seat; 11. Self-locking reel; 12. Turns sensor; 13. Threaded post; 14. Nut; 15. Wire ring; 16. Scale; 17. Reel post; 18. Stop plate; 19. Fixed ring; 20. Spiral spring; 21. Pointer; 22. Wear-resistant copper alloy contact. Detailed Implementation

[0021] Please see Figure 1-7A monitoring device for the offset of the large busbar of an aluminum electrolysis anode includes multiple monitoring units arranged side by side, a lateral spacing adjustment mechanism spaced apart from the first monitoring unit, a self-locking winder 11 and a turns sensor 12 (using a rotary encoder) spaced apart on one side of the lateral spacing adjustment mechanism, and a traction rope 5 (stainless steel wire rope) connected to the self-locking winder 11; the traction rope 5 passes through the multiple monitoring units sequentially and is fixedly connected to the last monitoring unit; the monitoring unit includes a height adjustment mounting mechanism and a vertical sliding groove 3 located on one side of the height adjustment mounting mechanism. A spring 8 connected to the lower side of the interior of the vertical sliding groove 3; a slider 9 connected to the upper end of the spring 8 and slidingly engaged with the inner wall of the vertical sliding groove 3; an internally threaded cylinder 7 vertically connected to the upper side of the slider 9 and located on the outer side of the vertical sliding groove 3; a screw 6 threadedly connected to the internally threaded cylinder 7; a wear-resistant copper alloy contact 22 located at the upper end of the screw 6 and used to abut against the anode busbar; a scale 16 located on one side of the vertical sliding groove 3; and a wire ring 15 located on the lower side of the internally threaded cylinder 7. The wire ring 15 is clearance-fitted with the traction rope 5, and one end of the traction rope 5 is connected to the wire ring 15 of the tail end monitoring unit.

[0022] The lateral spacing adjustment mechanism includes a fixed block 4 vertically fixed to the surface of the electrolytic cell by multiple bolts, a movable seat 10 spaced apart from the fixed block 4, multiple threaded posts 13 welded to one side of the fixed block 4 and arranged in a ring, and two nuts 14 threadedly connected to the threaded posts 13. The two nuts 14 abut against the two sides of the movable seat 10 respectively. A through hole is opened on the movable seat 10 at the position corresponding to the threaded post 13, and the threaded post 13 passes through the through hole and extends to the side of the movable seat 10 away from the fixed block 4. By loosening the nuts 14 on both sides, the movable seat 10 can be pushed to slide along the axial direction of the threaded post 13, so that the movable seat 10 moves relative to the fixed block 4, ensuring that the self-locking reel 11 is aligned with the wire ring 15 and that the traction rope 5 remains horizontal. After adjustment, tightening the nuts 14 on both sides can firmly fix the movable seat 10 with clamping force to prevent it from shifting due to vibration during operation.

[0023] The self-locking reel 11 includes a reel 17 rotatably connected to one side of the movable base 10 via a bearing, a stop plate 18 (used to limit the axial displacement of the traction rope 5) respectively disposed on the outer wall and one end of the reel 17, a fixing ring 19 welded to one side of the movable base 10 and sleeved on the outer wall of the reel 17, and a spiral spring 20 disposed on the inner wall of the fixing ring 19; the inner end of the spiral spring 20 is welded and fixed to the outer wall of the reel 17, and the outer end is fixed to the inner wall of the fixing ring 19. The spiral spring 20 continuously applies torque to the reel 17 through elastic deformation, so that the traction rope 5 is always kept taut (the tension can be preset by the spring specification), ensuring that when the slider 9 of a certain monitoring unit deviates, the traction rope 5 can immediately drive the reel 17 to rotate.

[0024] The height adjustment mounting mechanism includes a fixed seat 1 vertically fixed to the surface of the electrolytic cell by multiple bolts, a movable seat 2 fitted to one side of the fixed seat 1 and forming a sliding fit with the fixed seat 1, two rows of first mounting holes on one side of the fixed seat 1, two rows of second mounting holes on one side of the movable seat 2, and multiple connecting parts (such as bolts and nuts) passing through the first and second mounting holes. The fixed seat 1 and the movable seat 2 are threadedly connected by the first mounting holes, the second mounting holes, and the connecting parts. A vertical sliding groove 3 is located on one side of the movable seat 10 and between the two rows of second mounting holes. Multiple first and second mounting holes are arranged from top to bottom. The connecting parts (such as bolts and nuts) pass through the aligned first and second mounting holes to securely connect the fixed seat 1 and the movable seat 2. The vertical distribution of the two rows of first and second mounting holes allows the movable seat 2 to connect to the fixed seat 1 by selecting different combinations of hole heights, realizing multi-level height adjustment of the vertical sliding groove 3, which can adapt to the busbar installation height of different specifications of electrolytic cells.

[0025] A pointer 21 is welded and fixed to one side of the slider 9 and slides in cooperation with one side of the vertical sliding groove 3. The pointing end of the pointer 21 corresponds to the scale surface of the scale 16. The pointer 21 is flat and perpendicular to the sliding direction of the slider 9. Its end extends to the scale surface of the scale 16 and maintains a small gap with the side wall of the vertical sliding groove 3 to achieve sliding cooperation, ensuring that the pointer 21 can move synchronously along the scale surface without jamming when the slider 9 rises and falls.

[0026] Working process and principle: When the monitoring device is working, firstly, a fixed seat 1 is installed at the corresponding position of each busbar on one side of the electrolytic cell to ensure that the side-by-side fixed seats 1 are distributed at the same height; by selecting the first mounting holes at different heights on the fixed seat 1 and aligning them with the second mounting holes of the movable seat 2, and fixing them with connectors, the vertical sliding groove 3 is adjusted to the appropriate height; then, the horizontal spacing adjustment mechanism is adjusted, and the two nuts 14 on the threaded column 13 are rotated to realize the movement of the movable seat 10 relative to the fixed block 4, ensuring that the self-locking winding device 11 is aligned with the wire ring 15. At the same time, the winding column 17 of the self-locking winding device 11 tightens the traction rope 5 under the action of the spiral spring 20, ensuring that the traction rope 5 passes through the wire ring 15 of each monitoring unit and is in a taut state.

[0027] During monitoring, the screw 6 is rotated to move up and down within the internal threaded cylinder 7, allowing the wear-resistant copper alloy contact 22 to contact the bottom edge of the anode busbar. Tightening the screw 6 further moves the internal threaded cylinder 7 downwards, causing the slider 9 to compress the spring 8 and slide down along the vertical sliding groove 3 until the pointer 21 points to the zero mark on the scale 16, completing the calibration. When the anode busbar shifts, it pushes the wear-resistant copper alloy contact 22, which in turn causes the screw 6, internal threaded cylinder 7, and slider 9 to rise and fall synchronously. The spring 8 extends and retracts accordingly. The offset of the pointer 21 on the scale 16 directly reflects the busbar's offset distance. If the busbar of a certain electrolytic cell shifts, the rise and fall of the slider 9 of the corresponding monitoring unit changes the tension of the traction rope 5, causing the winding post 17 to rotate to release or retract the traction rope 5. The baffle 18 prevents the rope from falling off. The rotation sensor 12 locates the position of the abnormal monitoring unit by detecting the number of rotations of the winding post 17. In specific judgment, when a certain busbar displacement deviates, the traction rope 5 passing through a row of conductor rings 15 will change from a horizontal straight line to a broken line, and the actual length will increase. Correspondingly, the number of rotations of the self-locking reel 11 connected to the traction rope 5 will increase. Thus, it can be judged that one or more busbars in that row have a positional deviation.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for monitoring the anode busbar offset of an aluminum electrolysis cell, comprising a plurality of monitoring units arranged side by side, characterized in that, It also includes a lateral spacing adjustment mechanism spaced apart from the first end monitoring unit, a self-locking reel (11) and a turns sensor (12) spaced apart on one side of the lateral spacing adjustment mechanism, and a traction rope (5) connected to the self-locking reel (11); the traction rope (5) passes through multiple monitoring units in sequence and is fixedly connected to the tail end monitoring unit; the monitoring unit includes a height adjustment installation mechanism, a vertical sliding groove (3) on one side of the height adjustment installation mechanism, a spring (8) connected to the lower side inside the vertical sliding groove (3), and a spring (8) connected to the upper end of the spring (8) and the vertical sliding groove. (3) A slider (9) with sliding fit on the inner wall, an internal threaded cylinder (7) that is vertically connected to the upper side of the slider (9) and located outside the vertical sliding groove (3), a screw (6) that is threadedly connected to the internal threaded cylinder (7), a wear-resistant copper alloy contact (22) located at the upper end of the screw (6) and used to abut against the anode busbar, a scale (16) located on one side of the vertical sliding groove (3), and a wire ring (15) located on the lower side of the internal threaded cylinder (7); the wire ring (15) is clearance-fitted with the traction rope (5), and one end of the traction rope (5) is connected to the wire ring (15) of the tail end monitoring unit.

2. The apparatus for monitoring the shift of the aluminum electrolysis anode busbar according to claim 1, characterized in that, The lateral spacing adjustment mechanism includes a fixed block (4), a movable seat (10) spaced apart from the fixed block (4), a plurality of threaded posts (13) arranged in a ring on one side of the fixed block (4), and two nuts (14) threadedly connected to the threaded posts (13); the two nuts (14) respectively abut against the two sides of the movable seat (10); the threaded posts (13) penetrate the movable seat (10) and extend to one side of it.

3. A device for monitoring the shift of a large busbar of an aluminum electrolysis anode according to claim 2, characterized in that, The self-locking reel (11) includes a reel (17) rotatably connected to one side of the movable seat (10) via a bearing, a baffle (18) respectively disposed on the outer wall and one end of the reel (17), a fixing ring (19) disposed on one side of the movable seat (10) and sleeved on the outer wall of the reel (17), and a spiral spring (20) disposed on the inner wall of the fixing ring (19); the inner end of the spiral spring (20) is connected to the outer wall of the reel (17).

4. The monitoring device for the offset of the large busbar of an aluminum electrolysis anode according to claim 1, characterized in that, The height adjustment mounting mechanism includes a fixed seat (1), a movable seat (2) that slides with one side of the fixed seat (1), two rows of first mounting holes on one side of the fixed seat (1), two rows of second mounting holes on one side of the movable seat (2), and multiple connecting pieces that pass through the first mounting holes and the second mounting holes; the fixed seat (1) and the movable seat (2) are threadedly connected by the first mounting holes, the second mounting holes and the connecting pieces; the vertical sliding groove (3) is provided on one side of the movable seat (10) and located between the two rows of second mounting holes; a row of first mounting holes and a row of second mounting holes are arranged in multiples from top to bottom.

5. The monitoring device for the offset of the large busbar of an aluminum electrolysis anode according to claim 1, characterized in that, The slider (9) has a pointer (21) on one side that slides in cooperation with the vertical sliding groove (3) on one side. The pointing end of the pointer (21) corresponds to the scale surface of the ruler (16).

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