Ground pneumatic type reaming device for aluminum outlet of electrolytic cell

Abstract

The utility model discloses a ground pneumatic type electrolytic cell aluminum outlet reaming device which comprises a support, an air storage tank is arranged at one end of the support, a U-shaped connecting frame is hinged to the upper portion of the other end of the support, and a first connecting rod is hinged to the lower portion of the other end of the support. A first connecting rod is hinged to the end, away from the support, of the connecting frame, a second connecting rod is hinged to the end, away from the support, of the connecting frame, the free end of the first connecting rod and the free end of the second connecting rod are jointly hinged to a crust breaking machine head, and a telescopic air cylinder is hinged between the upper portion of the end, provided with the air storage tank, of the support and the middle of the first connecting rod; and the air storage tank is respectively communicated with the crust breaking machine head and the telescopic air cylinder through corresponding soft air pipes. According to the utility model, the distance between a chambering operator and the hearth of the electrolytic cell is increased, so that a scald accident caused by electrolyte overflow during chambering operation is prevented; and the labor intensity of personnel is reduced, and the reaming operation time is effectively shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of hole enlarging of an aluminum outlet of an electrolytic cell, in particular to a ground pneumatic hole enlarging device for an aluminum outlet of an electrolytic cell. Background Art

[0002] The aluminum outlet of the electrolytic cell is mainly used for daily aluminum outlet operations, salvaging carbon slag, adding electrolyte fragments, etc. The aluminum outlet is generally in a normally open state. Even if there is a crust on some of the surface, it can be easily opened under the action of the aluminum outlet shelling cylinder. During the aluminum outlet operation, there is a certain angle between the aluminum outlet pipe on the lifting bag and the liquid surface in the electrolytic cell. Only when the size of the crust surface of the aluminum outlet is more than 2 times the diameter of the suction pipe can it be ensured that the suction pipe is parallel to the bottom of the electrolytic cell and leaves a certain distance for the suction of aluminum liquid when the lifting bag is sucking out the aluminum liquid. Affected by the electrolysis process, due to the crust on the aluminum outlet furnace side and other reasons, the aluminum outlet will gradually shrink inward. If the aluminum outlet of the electrolytic cell is too small, it will make it difficult to insert the aluminum outlet pipe, affecting the suction of aluminum liquid. The lifting bag suction pipe may also break, which will also affect the quality of carbon slag salvage, the time of effect extinguishing and the smooth pouring of liquid electrolyte. As time goes by, the aluminum outlet will become smaller and smaller, and the impact on electrolytic production will become greater and greater. Therefore, the aluminum outlet must be expanded outward regularly. In the past, manual expansion operations were performed using pneumatic picks and planers, which was labor-intensive and time-consuming. It took about 30 minutes to expand an aluminum outlet, which was inefficient. In addition, the operators were in close contact with the shell surface of the electrolytic cell and faced a cell temperature of more than 930°C, which posed safety hazards such as heatstroke and burns caused by electrolyte overflow. Utility Model Content

[0003] The utility model aims to provide a ground pneumatic aluminum outlet hole enlarging device for an electrolytic cell, so as to solve the problems mentioned in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a ground pneumatic aluminum outlet hole expanding device for an electrolytic cell, comprising a bracket, one end of the bracket is provided with a gas storage tank, the upper part of the other end of the bracket is hingedly provided with a U-shaped connecting frame, the lower part of the other end of the bracket is hingedly provided with a first connecting rod, the end of the connecting frame away from the bracket is hingedly provided with a second connecting rod, the free ends of the first connecting rod and the second connecting rod are hingedly connected to a shelling machine head, a telescopic cylinder is hingedly provided between the upper part of one end of the bracket provided with the gas storage tank and the middle part of the first connecting rod, and the gas storage tank is respectively connected to the shelling machine head and the telescopic cylinder through corresponding soft air ducts.

[0006] Furthermore, one end of the bracket with the gas tank is symmetrically rotatably provided with two guide wheels, and one end of the bracket with the connecting frame is symmetrically rotatably provided with two support wheels.

[0007] Furthermore, a one-way valve and an air intake pipe are provided on the air inlet of the air storage tank.

[0008] Furthermore, a safety valve and an exhaust valve are provided at the communication position between the gas storage tank and the soft air duct.

[0009] Furthermore, the exhaust valve is connected to a two-position three-way reversing valve via a three-way conversion joint, and the two-position three-way reversing valve is respectively connected to a soft air duct connecting the shelling machine head and the telescopic cylinder.

[0010] Furthermore, it also includes a control cabinet arranged on the bracket, the control cabinet is electrically connected to the one-way valve, the safety valve, the exhaust valve and the three-way reversing valve, and the control cabinet is provided with a control button.

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

[0012] The utility model uses a group of guide wheels, support wheels and brackets to form the overall frame of the movable device, which is convenient for the movement and steering of the device. The entire device increases the distance between the reaming operator and the furnace side of the electrolytic cell to prevent electrolyte overflow and scalding accidents during reaming operations; when the device is reaming, the operator can control the lifting height of the shelling machine head through the control button without manual adjustment, which reduces the labor intensity of the personnel. At the same time, the device is equipped with a gas storage device to ensure that the vibration of the shelling machine head is continuous and sufficient, effectively shortening the reaming operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation of the shelling machine head of the utility model;

[0016] Explanation of the accompanying drawings: 1. control cabinet; 2. one-way valve; 3. air inlet pipe; 4. control button; 5. frame; 6. gas storage tank; 7. guide wheel; 8. telescopic cylinder; 9. safety valve; 10. exhaust valve; 11. flexible air duct; 12. connecting frame; 13. shelling machine head; 14. pin shaft; 15. support wheel; 16. first connecting rod; 17. second connecting rod; 18. connecting arm; 19. extension rod. DETAILED DESCRIPTION

[0017] like Figure 1-Figure 2 As shown, a ground pneumatic electrolytic cell aluminum outlet hole expanding device includes a bracket 5, one end of which is fixedly mounted with a gas storage tank 6, and a one-way valve 2 and an air inlet pipe 3 are installed on the air inlet of the gas storage tank 6.

[0018] The upper part of the other end of the bracket 5 is hingedly connected with a U-shaped connecting frame 12, and the lower part of the other end of the bracket 5 is hingedly installed with a first connecting rod 16. The end of the connecting frame 12 away from the bracket 5 is hingedly installed with a second connecting rod 17, and the free ends of the first connecting rod 16 and the second connecting rod 17 are hingedly connected to the shell breaker head 13. Specifically, a connecting arm 18 is fixedly arranged on the periphery of the shell breaker head 13, and the upper and lower ends of the connecting arm 18 are hingedly connected to the second connecting rod 17 and the first connecting rod 16 respectively. A telescopic cylinder 8 is hingedly installed between the upper part of the end of the bracket 5 where the gas tank 6 is installed and the middle part of the first connecting rod 16, and the main body of the telescopic cylinder 8 is hingedly connected to the upper part of the bracket 5. The telescopic end of the telescopic cylinder 8 is fixedly welded with an extension rod 19, and the free end of the extension rod 19 is hingedly connected to the middle part of the first connecting rod 16. The above-mentioned hinged relationship in this embodiment is realized by a pin 14.

[0019] The gas storage tank 6 is connected to the shelling machine head 13 and the telescopic cylinder 8 through corresponding soft air pipes 11. Specifically, a safety valve 9 and an exhaust valve 10 are installed at the communication position between the gas storage tank 6 and the soft air pipe 11. The exhaust valve 10 is connected to a two-position three-way reversing valve through a three-way conversion joint, and the two-position three-way reversing valve is connected to the soft air pipes 11 connecting the shelling machine head 13 and the telescopic cylinder 8.

[0020] In this embodiment, the bracket 5 has two guide wheels 7 symmetrically rotatably mounted on one end where the gas storage tank 6 is mounted, and the bracket 5 has two support wheels 15 symmetrically rotatably mounted on one end where the connecting frame 12 is mounted. The bracket 5, the guide wheels 7 and the support wheels 15 together form a walking mechanism to ensure that the hole expansion device can move in the electrolysis plant.

[0021] In addition, the utility model also includes a control cabinet 1 installed on the bracket, the control cabinet 1 is electrically connected to the one-way valve, the safety valve, the exhaust valve and the three-way reversing valve, and a control button 4 is installed on the control cabinet 1 for controlling the opening and closing status of each valve.

[0022] The working method of the utility model is as follows: when the aluminum outlet is expanded, the device is pushed in front of the electrolytic cell, the external air source is connected to the air inlet pipe 3, the valve is opened, and the telescopic state of the telescopic cylinder is adjusted by the control button 4. After the shelling machine head 13 is adjusted to a suitable height, it is fine-tuned in the direction of the aluminum outlet, and the exhaust valve 10 is opened. The shelling machine head starts to vibrate under the action of compressed air, and the control button 4 is fine-tuned to make the telescopic cylinder 8 drop to a suitable position to start the expansion operation, and the position of the aluminum outlet expansion device of the electrolytic cell is adjusted in turn, and the operation is continued until the expansion operation is completed. After the operation is completed, the compressed air is turned off, the exhaust valve 10 is closed, the quick connector at the air inlet pipe 3 is removed, and the aluminum outlet expansion device of the electrolytic cell is pushed to the front of the next electrolytic cell that needs to be expanded.

[0023] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A ground pneumatic electrolytic cell aluminum outlet hole enlarging device, characterized in that: The invention comprises a bracket, wherein a gas storage tank is arranged at one end of the bracket, a U-shaped connecting frame is hingedly arranged at the upper part of the other end of the bracket, a first connecting rod is hingedly arranged at the lower part of the other end of the bracket, a second connecting rod is hingedly arranged at one end of the connecting frame away from the bracket, free ends of the first connecting rod and the second connecting rod are hingedly connected to a shelling machine head, a telescopic cylinder is hingedly arranged between the upper part of one end of the bracket where the gas storage tank is arranged and the middle part of the first connecting rod, and the gas storage tank is respectively connected to the shelling machine head and the telescopic cylinder through corresponding soft air ducts.

2. The ground pneumatic electrolytic cell aluminum outlet hole enlarging device according to claim 1, characterized in that: One end of the bracket provided with the gas storage tank is symmetrically provided with two guide wheels for rotation, and one end of the bracket provided with the connecting frame is symmetrically provided with two supporting wheels for rotation.

3. The device for expanding the aluminum outlet of a ground pneumatic electrolytic cell according to claim 1, characterized in that: A one-way valve and an air intake pipe are arranged on the air intake port of the air storage tank.

4. The device for expanding the aluminum outlet of a ground pneumatic electrolytic cell according to claim 3, characterized in that: A safety valve and an exhaust valve are provided at the communicating position between the gas storage tank and the soft air duct.

5. The device for expanding the aluminum outlet of a ground pneumatic electrolytic cell according to claim 4, characterized in that: The exhaust valve is connected to a two-position three-way reversing valve through a three-way conversion joint, and the two-position three-way reversing valve is respectively connected to a soft air pipe connecting the shelling machine head and the telescopic cylinder.

6. The device for expanding the aluminum outlet of a ground pneumatic electrolytic cell according to claim 5, characterized in that: It also includes a control cabinet arranged on the bracket, the control cabinet is electrically connected to the one-way valve, the safety valve, the exhaust valve and the three-way reversing valve, and a control button is arranged on the control cabinet.

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