Maintenance ladder for aluminum electrolysis cell

Abstract

The utility model discloses a maintenance ladder for an aluminum electrolysis cell, and particularly relates to the technical field of electrolysis cell maintenance equipment, the maintenance ladder comprises a first ladder body and a second ladder body, the first ladder body comprises two first grab rails, two hooking rods and a plurality of first foot rest levers, one ends of the first grab rails are fixedly connected with the hooking rods, and the other ends of the first grab rails are used for being in contact with the ground; the first ladder body comprises two first grab rails, a plurality of first foot rest levers and a hooking rod, the first foot rest levers are arranged between the two first grab rails, the hooking rod is used for being hooked above a door frame of an electrolytic bath furnace door, the first grab rails are provided with first rails, the hooking rod is provided with second rails, and the first rails and the second rails are connected and communicated; rollers are mounted on the outer side wall of the second grab rail, are arranged in the first track and the second track and can walk along the first track and the second track. The device is simple in structure, convenient to store and carry, and capable of achieving rapid and safe groove installation, improving the maintenance efficiency and improving the safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic cell overhauling equipment technical field, especially a kind of overhauling ladder for aluminium electrolytic cell. BACKGROUND

[0002] The equipment on the upper part of the aluminium electrolytic cell undertakes the operation of breaking shell, discharging, lifting and the like. However, the sealing element of the air cylinder and the discharger on the upper part of the aluminium electrolytic cell is easy to be damaged, and the air pipe is easy to be aged and to run air. In order to ensure the normal process flow of the electrolytic cell, it is necessary to carry out precise maintenance and maintenance, and the electrolytic worker must be treated in the first time after failure. Since the temperature of the upper part of the cell is relatively high, and the distance between the upper part of the cell and the ground is 4.5 m, the overhauling worker needs to step on the cover plate of the electrolytic cell first, then step on the balance bus, and finally step on the anode guide rod to reach the safe position on the cell. This process takes a long time, which affects the overhauling efficiency, and there is a risk of scalding or falling injury due to the cover plate not being covered well and stepping into the electrolytic cell, and a risk of falling injury due to not stepping steadily. SUMMARY

[0003] The utility model aims to provide an overhauling ladder for aluminium electrolytic cell, to solve the problems existing in the prior art, which is simple in structure, convenient to store and carry, can realize quick and safe climbing on the cell, improve the overhauling efficiency and safety.

[0004] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0005] The utility model provides an overhauling ladder for aluminium electrolytic cell, which comprises a first ladder body and a second ladder body. The first ladder body comprises two first handrails, two hooking rods and a plurality of first foot pedals. One end of the first handrail is fixedly connected with the hooking rod, and a plurality of first foot pedals are arranged between the two first handrails. The other end of the first handrail is used to contact the ground. The hooking rod is used to be hooked above the door frame of the electrolytic cell. The first handrail is provided with a first track, and the hooking rod is provided with a second track. The first track and the second track are connected and communicated. The second ladder body comprises two second handrails, a plurality of second foot pedals and a roller. The outer side wall of the second handrail is provided with the roller. The roller is arranged in the first track and the second track and can walk along the first track and the second track.

[0006] Preferably, the hooking rod comprises a horizontal rod and a vertical rod. One end of the horizontal rod is fixedly connected with the first handrail, and the other end of the horizontal rod is fixedly connected with the vertical rod perpendicularly.

[0007] Preferably, the horizontal rod is at a certain angle with the first handrail.

[0008] Preferably, the angle between the horizontal rod and the first handrail rod is 120°.

[0009] Preferably, the insulating plate is fixedly connected with the first handrail rod and the hooking rod on the side close to the electrolytic cell.

[0010] Preferably, the material of the first ladder body and the second ladder body is aluminum alloy.

[0011] Preferably, the first handrail rod and the hooking rod are both square tubes with a size of 40mm*40mm*3mm, and the first footrest rod is a square tube with a size of 40mm*40mm*3mm.

[0012] Preferably, the second handrail rod is a square tube with a size of 30mm*30mm*3mm, and the second footrest rod is a square tube with a size of 30mm*30mm*2mm.

[0013] Preferably, the first track is a first U-shaped channel steel, one side wall of the first U-shaped channel steel is fixedly connected with the first handrail rod, and the openings of the two first U-shaped channel steels are oppositely arranged.

[0014] Preferably, the second track is a second U-shaped channel steel, one side wall of the second U-shaped channel steel is fixedly connected with the hooking rod, the openings of the two second U-shaped channel steels are oppositely arranged, the bottom surface width and thickness of the second U-shaped channel steel are the same as those of the first U-shaped channel steel, the bottom surface of the second U-shaped channel steel is flush with the bottom surface of the first U-shaped channel steel, and the side wall height of the second U-shaped channel steel is 1 / 2 of the side wall height of the first U-shaped channel steel.

[0015] The utility model discloses relative to prior art has obtained following technical effect:

[0016] The utility model provides a kind of overhaul ladder for aluminum electrolytic cell, when not using, the second ladder body and the part of first ladder body are mutually overlapped, the overall length and volume of ladder are relatively smaller, it is convenient to store and transport, can more effectively utilize space;When using, first, the hooking rod of first ladder body is hooked in electrolytic cell furnace door frame top, and maintenance personnel climbs to electrolytic cell furnace door by footrest rod, then pulls second ladder body, and makes gyro wheel first along first track and walks upwards, again, along second track, horizontal walking on electrolytic cell furnace door frame, until gyro wheel walks to the end of hooking rod, and the top end of second ladder body is overlapped in the top end of electrolytic cell, and maintenance personnel climbs to the top end of electrolytic cell for maintenance again by second ladder body, realize fast and safe up cell, improve overhaul efficiency, improve safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical schemes in the embodiments of the present application or in the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0018] Figure 1 Structure schematic view when the first ladder body and the second ladder body of the maintenance ladder for the aluminum electrolysis cell are overlapped;

[0019] Figure 2 Front view when the first ladder body and the second ladder body of the maintenance ladder for the aluminum electrolysis cell are overlapped;

[0020] Figure 3 Structure schematic view when the first ladder body and the second ladder body of the maintenance ladder for the aluminum electrolysis cell are separated;

[0021] Figure 4 Structure schematic view of the first ladder body;

[0022] Figure 5 Structure schematic view of the second ladder body.

[0023] In the drawings: 1-first ladder body;11-first handrail rod;12-horizontal rod;13-vertical rod;14-first foot pedal rod;15-first track;16-second track;2-second ladder body;21-second handrail rod;22-second foot pedal rod;23-roller. DETAILED DESCRIPTION

[0024] The technical schemes in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] The purpose of the present application is to provide a maintenance ladder for an aluminum electrolysis cell to solve the problems in the prior art, which is simple in structure, convenient to store and carry, can realize fast and safe slotting, improve maintenance efficiency and safety.

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0027] The present application provides a maintenance ladder for an aluminum electrolysis cell, which comprises a first ladder body and a second ladder body. Figures 1-5As shown, including first ladder body 1 and second ladder body 2, first ladder body 1 includes two parallel first handrail rods 11, two parallel hook rods and a plurality of first footrest rods 14, one end of first handrail rod 11 is fixedly connected with hook rod, a plurality of first footrest rods 14 are arranged between two first handrail rods 11, one end of first handrail rod 11 away from hook rod is used for being in contact with ground, hook rod is used for being hooked on electrolytic cell furnace door frame, first handrail rod 11 is provided with first track 15, hook rod is provided with second track 16, first track 15 and second track 16 are connected and communicated, second ladder body 2 includes two parallel second handrail rods 21, a plurality of second footrest rods 22 and roller 23, the outer side wall of the bottom of second handrail rod 21 is provided with roller 23, roller 23 is arranged in first track 15 and second track 16 and can walk along first track 15 and second track 16. The distance between the top of the electrolytic cell and the ground is measured, and the length of the first ladder body 1 and the second ladder body 2 is calculated. When not in use, the second ladder body 2 and part of the first ladder body 1 overlap each other, the overall length and volume of the ladder are relatively small, facilitating storage and transportation, and space can be more effectively utilized; when in use, first, the hook rod of the first ladder body 1 is hooked on the top of the electrolytic cell furnace door frame, and the maintenance personnel climb to the top of the electrolytic cell furnace door through the footrest rod, then pull the second ladder body 2, so that the roller 23 first walks upward along the first track 15, and then walks horizontally along the second track 16 on the electrolytic cell furnace door frame, until the roller 23 walks to the end of the hook rod, and the top end of the second ladder body 2 is overlapped on the top end of the electrolytic cell, and then the maintenance personnel climb to the top end of the electrolytic cell through the second ladder body 2 for maintenance, realizing quick and safe climbing into the electrolytic cell, improving the maintenance efficiency and safety. The first ladder body 1 is overlapped on a vertical plane, and when the second ladder body 2 is moved on the vertical plane and the horizontal plane, it is overlapped on another vertical plane, so that the second ladder body 2 and the first ladder body 1 are not in the same plane, thereby realizing the overlapping on two different vertical planes. Further preferably, the distance between adjacent first footrest rods 14 meets the human mechanics and safety distance, and the spacing between the first footrest rods 14 is the same as the spacing between the second footrest rods 22.

[0028] Further preferably in the embodiment of the utility model, the hook rod comprises a horizontal rod 12 and a vertical rod 13, one end of the horizontal rod 12 is fixedly connected with the first handrail rod 11, and the other end of the horizontal rod 12 is fixedly connected with the vertical rod 13 perpendicularly. The horizontal rod 12 is overlapped on the top of the electrolytic cell furnace door frame, and the vertical rod 13 clamps the door frame to realize firm overlapping, thereby ensuring the stability of the ladder.

[0029] Further preferably in the embodiment of the utility model, the horizontal rod 12 is at a certain angle with the first handrail rod 11, and the angle between the horizontal rod 12 and the first handrail rod 11 is 120 DEG. The included angle between the first ladder body 1 and the ground is 60 DEG, and it is stable.

[0030] Further preferably in the embodiment of the utility model, the overhaul ladder for the aluminum electrolytic cell further comprises an insulating plate, the insulating plate is fixedly connected with the first handrail rod 11 and the hooking rod on the side close to the electrolytic cell, and the thickness of the insulating plate is 2 mm. The insulating plate can avoid the magnetic field adsorption on the ladder.

[0031] Further preferably in the embodiment of the utility model, the material of the first ladder body 1 and the second ladder body 2 is aluminum alloy. The aluminum alloy material can reduce the overall weight of the ladder and reduce the influence of the magnetic field.

[0032] Further preferably in the embodiment of the utility model, the first handrail rod 11 and the hooking rod are both aluminum alloy square tubes with the size of 40 mm * 40 mm * 3 mm, the first foot pedal rod 14 is an aluminum alloy square tube with the size of 40 mm * 40 mm * 3 mm, the second handrail rod 21 is an aluminum alloy square tube with the size of 30 mm * 30 mm * 3 mm, and the second foot pedal rod 22 is an aluminum alloy square tube with the size of 30 mm * 30 mm * 2 mm.

[0033] Further preferably in the embodiment of the utility model, the first track 15 is a first U-shaped channel steel, one side wall of the first U-shaped channel steel is fixedly connected with the first handrail rod 11, and the openings of the two first U-shaped channel steels are oppositely arranged. The size of the first U-shaped channel steel is 50 mm * 40 mm * 3 mm, the roller 23 and part of the second handrail rod 21 of the second ladder body 2 are arranged in the first U-shaped channel steel, so that the direction of the second ladder body 2 does not deflect during the upward extraction process.

[0034] Further preferably in the embodiment of the utility model, the second track 16 is a second U-shaped channel steel, one side wall of the second U-shaped channel steel is fixedly connected with the hooking rod, the openings of the two second U-shaped channel steels are oppositely arranged, the bottom surface width and thickness of the second U-shaped channel steel are the same as those of the first U-shaped channel steel, the bottom surface of the second U-shaped channel steel is flush with the bottom surface of the first U-shaped channel steel, and the side wall height of the second U-shaped channel steel is 1 / 2 of the side wall height of the first U-shaped channel steel. The side wall height of the second U-shaped channel steel is lower than that of the first U-shaped channel steel, after the second handrail rod 21 and the roller 23 are extracted from the first U-shaped channel steel, only the roller 23 enters the second U-shaped channel steel, and the second handrail rod 21 is located outside the second U-shaped channel steel, so that when the second ladder body 2 moves on the hooking rod, the angle of the second ladder body 2 can be rotated to enable the second ladder body 2 to be stably lapped on the top end of the electrolytic cell.

[0035] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An access ladder for an aluminium reduction cell, characterised in that: The first ladder body comprises two first handrails, two hooking rods and a plurality of first foot pedals, one end of the first handrail is fixedly connected with the hooking rod, a plurality of the first foot pedals are arranged between the two first handrails, one end of the first handrail away from the hooking rod is used for contacting the ground, the first handrail is provided with a first track, the hooking rod is provided with a second track, the first track and the second track are connected and communicated, the second ladder body comprises two second handrails, a plurality of second foot pedals and a roller, the outer side wall of the second handrail is provided with the roller, the roller is arranged in the first track and the second track and can walk along the first track and the second track.

2. The service ladder for an aluminum electrolysis cell of claim 1, characterized in that: The hooking rod comprises a horizontal rod and a vertical rod, one end of the horizontal rod is fixedly connected with the first handrail, the other end of the horizontal rod is fixedly connected with the vertical rod.

3. The service ladder for an aluminum electrolysis cell of claim 2, characterized by: The horizontal rod and the first handrail form a certain angle.

4. The service ladder for an aluminum electrolytic cell of claim 3, characterized in that: The angle between the horizontal rod and the first handrail is 120°.

5. The service ladder for an aluminum electrolysis cell of claim 1, characterized by: The first ladder body and the second ladder body are made of aluminum alloy.

6. The service ladder for an aluminum electrolysis cell of claim 1, characterized by: The first handrail and the hooking rod are both square tubes with a size of 40mm×40mm×3mm, and the first foot pedal is a square tube with a size of 40mm×40mm×3mm.

7. The service ladder for an aluminum electrolysis cell of claim 1, characterized by: The second handrail is a square tube with a size of 30mm×30mm×3mm, and the second foot pedal is a square tube with a size of 30mm×30mm×2mm.

8. The service ladder for an aluminum electrolysis cell of claim 7, characterized in that: The first track is a first U-shaped channel steel, one side wall of the first U-shaped channel steel is fixedly connected with the first handrail, and the openings of the two first U-shaped channel steels are oppositely arranged.

9. The service ladder for an aluminum reduction cell of claim 1, wherein: The second track is a second U-shaped channel steel, one side wall of the second U-shaped channel steel is fixedly connected with the hooking rod, and the openings of the two second U-shaped channel steels are oppositely arranged, the bottom surface width and thickness of the second U-shaped channel steel are the same as those of the first U-shaped channel steel, the bottom surface of the second U-shaped channel steel is flush with the bottom surface of the first U-shaped channel steel, and the side wall height of the second U-shaped channel steel is 1 / 2 of the side wall height of the first U-shaped channel steel.

10. A service ladder for an aluminium reduction cell as claimed in claim 9, characterised in that: ​

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