Sealing type unloading observation device for electrolytic cell

Abstract

The utility model discloses a sealing type unloading observation device of electrolytic cell, include: bottom plate (1), and the hole is set up on it, plug -in board (2), the size is greater than the hole size on bottom plate (1) size, set up in bottom plate (1) top, sealing cylinder (3) is set in the lower part of leading material cylinder (7), can slide along leading material cylinder (7) up and down, front vertical board (4) and rear vertical board (8) are welded and are connected in lower fixed plate (5) and upper fixed plate (6), and the lower end is set up and has the gap of the width greater than the width of plug -in board (2), lower fixed plate (5) and upper fixed plate (6) are welded and are connected in leading material cylinder (7), push -and -pull board (9) passes through bottom plate (1) hole and is welded and is connected with plug -in board (2). The utility model discloses can observe and understand whether the unloading of unloading air cylinder is normal through this device, grasps the working condition of unloading air cylinder, handles the abnormal air cylinder in time, ensures that air cylinder is normal work, makes the concentration of aluminium oxide in electrolyte satisfy the production process requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrolytic aluminum production process equipment, specifically relating to a sealed feeding and observation device for an electrolytic cell. Background Technology

[0002] In electrolytic aluminum production, a certain thickness of furnace surface insulation material is added to the top surface of the anode and around the electrolyte in the electrolytic cell. Under high-temperature sintering, this material forms a dense shell. This shell serves to insulate the furnace and cover the anode, preventing oxidation. As production progresses, the alumina concentration in the electrolyte decreases. To maintain the alumina concentration within the required range, alumina needs to be continuously added to the electrolyte. In actual production, several feeding holes are set at the seams of the shell for feeding alumina into the electrolyte, ensuring the alumina concentration remains within a reasonable range to meet the needs of electrolytic production. Electrolytic cells have two feeding methods: open feeding and sealed feeding. Open feeding is prone to alumina scattering, resulting in alumina loss. In sealed feeding electrolytic cells, the feeding hole sealing cover passes directly through the electrolytic cell shell and connects to the space above the electrolyte. The outer wall of the feeding hole sealing cover is in close contact with the shell surface, forming an effective seal. During feeding, a feeding cylinder located in the material box feeds the material. The material passes through a straight material pipe and an inclined material pipe before entering the feeding hole sealing cover and then falling into the electrolyte to meet production needs. This sealed feeding method effectively avoids the risk of alumina loss during feeding. While reducing alumina loss and material consumption, the entire feeding process is completed in a sealed state, making it impossible for managers to observe the feeding status and determine whether the feeding cylinder is feeding normally. If the feeding cylinder malfunctions, such as feeding too much or too little, the alumina concentration in the electrolyte will deviate from the process requirements, affecting production. Therefore, for sealed feeding electrolytic cells, observing and understanding the feeding status of the feeding cylinder and promptly handling any abnormalities is of great importance to ensuring normal production. Summary of the Invention

[0003] The purpose of this invention is to provide a sealed feeding observation device for electrolytic cells that effectively solves the above-mentioned problems. After using this device, one can observe and understand whether the feeding of the feeding cylinder is normal, grasp the working status of the feeding cylinder, deal with abnormal cylinders in a timely manner, ensure the normal operation of the cylinder, and make the alumina concentration in the electrolyte meet the production process requirements.

[0004] The purpose of this utility model and the solution to its main technical problem are achieved by the following technical solution:

[0005] This utility model discloses a sealed feeding and observation device for an electrolytic cell, comprising: a hole in a base plate; an insert plate larger than the hole in the base plate, positioned above the base plate; a sealing cylinder fitted onto the lower part of a feeding cylinder, with an inner diameter larger than the outer diameter of the feeding cylinder, capable of sliding up and down along the feeding cylinder; a front vertical plate and a rear vertical plate welded to a lower fixed plate and an upper fixed plate, with a notch at the lower end wider than the insert plate; the lower fixed plate and the upper fixed plate welded to the feeding cylinder; and a push-pull plate smaller than the hole in the base plate, passing through the hole and welded to the insert plate, the push-pull plate and the insert plate being able to slide back and forth.

[0006] The inner wall of the feed cylinder connected to the inclined tube is offset from the inner wall of the straight tube, while the inner wall of the other side is aligned with the inner wall of the straight tube.

[0007] Under the action of gravity, the sealing cylinder can adhere tightly to the surface of the insert plate, sealing the gap between the insert plate and the feed cylinder.

[0008] The insert plate can slide back and forth above the bottom plate and within the notches of the front and rear vertical plates to open or close the lower port of the feed cylinder.

[0009] When the push-pull plate moves, the insert plate moves synchronously to control the opening and closing state of the feeding channel.

[0010] Compared with the prior art, this utility model has significant advantages. As can be seen from the above technical solution: a hole is provided in the base plate; the insert plate is larger than the hole in the base plate and is positioned above the base plate; the sealing cylinder is sleeved on the lower part of the feed cylinder, with an inner diameter larger than the outer diameter of the feed cylinder, and can slide up and down along the feed cylinder; the front vertical plate and the rear vertical plate are welded to the lower fixed plate and the upper fixed plate, and a notch with a width larger than the width of the insert plate is provided at the lower end; the lower fixed plate and the upper fixed plate are welded to the feed cylinder; the push-pull plate is smaller than the hole in the base plate, passes through the hole and is welded to the insert plate, and the push-pull plate and the insert plate can slide back and forth. The sliding plate allows for direct observation of the feeding status, facilitating timely detection of feeding abnormalities. The cooperation between the sealing cylinder and the plate ensures no material leakage during normal feeding. The push-pull plate design makes opening and closing operations convenient and does not affect production continuity. The welded fixing and sliding component design ensures the durability and reliability of the device. After using this device, users can observe whether the feeding cylinder is feeding normally, monitor the working status of the feeding cylinder, and promptly handle abnormal cylinders to ensure normal cylinder operation and that the alumina concentration in the electrolyte meets the production process requirements. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 yes Figure 1 Sectional view of CC;

[0013] Figure 3 This is a schematic diagram of the structure of the base plate of this utility model;

[0014] Figure 4 This is a structural schematic diagram of the front vertical plate and the rear vertical plate of this utility model;

[0015] Figure 5 This is a diagram showing the usage state of this utility model;

[0016] Figure 6 This is a diagram showing the plug-in plate of this utility model in its open state during use;

[0017] Figure 7 This is a diagram showing the plug-in plate of this utility model in its closed state during use;

[0018] Figure 8 This is a schematic diagram of the structure of a traditional electrolytic cell.

[0019] Markings in the figure

[0020] 1. Base plate, 2. Insert plate, 3. Sealing cylinder, 4. Front vertical plate, 5. Lower fixing plate, 6. Upper fixing plate, 7. Feed cylinder, 8. Rear vertical plate, 9. Push-pull plate, 10. Inclined feed tube, 11. Horizontal cover plate, 12. Straight feed tube, 13. Feed box, 14. Feed cylinder, 15. Feed hole sealing cover, 16. Shell surface, 17. Anode, 18. Electrolyte. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structure, features, and effects of this utility model.

[0022] This utility model discloses a sealed feeding and observation device for an electrolytic cell, comprising: a base plate 1 with a hole; an insert plate 2 larger than the hole in the base plate 1, positioned above the base plate 1; a sealing cylinder 3 fitted onto the lower part of a feed cylinder 7, with an inner diameter larger than the outer diameter of the feed cylinder 7, and capable of sliding up and down along the feed cylinder 7; a front vertical plate 4 and a rear vertical plate 8 welded to a lower fixed plate 5 and an upper fixed plate 6, with a notch at the lower end wider than the insert plate 2; the lower fixed plate 5 and the upper fixed plate 6 welded to the feed cylinder 7; and a push-pull plate 9 smaller than the hole in the base plate 1, passing through the hole and welded to the insert plate 2, the push-pull plate 9 and the insert plate 2 being able to slide back and forth. The front vertical plate 4 and the rear vertical plate 8 are welded to the lower fixed plate 5 and the upper fixed plate 6, respectively, and have a notch at the lower end that is wider than the width of the insert plate 2. The lower fixed plate 5 and the upper fixed plate 6 are welded to the feed cylinder 7. The feed cylinder 7 has a horizontal cover plate 11 fixedly connected to its top, and a hole on its side that is welded to the inclined material tube 10. The diameter of the hole is larger than the diameter of the straight material tube 12. The push-pull plate 9 is smaller than the size of the hole on the bottom plate 1. It passes through the hole and is welded to the insert plate 2 to drive the insert plate 2 to slide back and forth. The inner wall of the feed cylinder 7 connected to the inclined tube 10 is offset from the inner wall of the straight tube 12, while the inner wall of the other side is aligned with the inner wall of the straight tube 12. Under the action of gravity, the sealing cylinder 3 can stick to the surface of the insert plate 2, sealing the gap between the insert plate 2 and the feed cylinder 7. The insert plate 2 can slide back and forth above the bottom plate 1 and in the notch of the front vertical plate 4 and the rear vertical plate 8 to open or close the lower port of the feed cylinder 7. When the push-pull plate 9 moves, the insert plate 2 moves synchronously to control the opening and closing state of the feeding channel.

[0023] In use, the assembly is as follows: The inclined feed tube 10 is connected to one end of the feed cylinder 7 and the discharge hole sealing cover 15 at both ends. A discharge cylinder 14 is installed at the upper end of the straight feed tube 12, and the discharge cylinder 14 is installed inside the material box 13. The discharge hole sealing cover 15 is inserted into the shell surface 16, with the anode 17 and electrolyte 18 located below the shell surface 16. The straight feed tube 12 is installed on the horizontal cover plate 11. A shell-breaking hammer is inserted into the discharge hole sealing cover 15. The feed cylinder 7 is welded and fixed to the horizontal cover plate 11 and the straight feed tube 12. The lower fixing plate 5, upper fixing plate 6, front vertical plate 4, and rear vertical plate 8 are installed. After fitting the sealing cylinder 3, the insert plate 2 and the bottom plate 1 are installed. Finally, the push-pull plate 9 is welded. During normal feeding, the insert plate 2 is kept closed (see below). Figure 7 During observation, the sliding push-pull plate opens the feed port (see below). Figure 6 After observation, restore the seal.

Claims

1. A sealed feeding and observation device for an electrolytic cell, characterized in that, include: The base plate (1) has holes; the insert plate (2) is larger than the size of the holes on the base plate (1) and is set above the base plate (1); the sealing cylinder (3) is fitted on the lower part of the feed cylinder (7), the inner diameter is larger than the outer diameter of the feed cylinder (7), and it can slide up and down along the feed cylinder (7); the front vertical plate (4) and the rear vertical plate (8) are welded to the lower fixed plate (5) and the upper fixed plate (6), and the lower end has a notch with a width greater than the width of the insert plate (2); the lower fixed plate (5) and the upper fixed plate (6) are welded to the feed cylinder (7); the push-pull plate (9) is smaller than the size of the holes on the base plate (1), passes through the holes and is welded to the insert plate (2), and the push-pull plate (9) and the insert plate (2) can slide back and forth.

2. The sealed feeding and observation device for electrolytic cells as described in claim 1, characterized in that: The sealing cylinder (3) can adhere tightly to the surface of the insert plate (2) under the action of gravity, sealing the gap between the insert plate (2) and the feed cylinder (7).

3. The sealed feeding and observation device for electrolytic cells as described in claim 1, characterized in that: The insert plate (2) can slide back and forth above the bottom plate (1) and within the notches of the front vertical plate (4) and the rear vertical plate (8) to open or close the lower port of the feed cylinder (7).

4. The sealed feeding and observation device for electrolytic cells as described in claim 1, characterized in that: When the push-pull plate (9) moves, the insert plate (2) moves synchronously.

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