Aluminum electrolysis cell fluoride salt feeding device

Abstract

The utility model discloses a fluoride salt feeding device for an aluminum electrolysis cell, which belongs to the technical field of aluminum electrolysis production and comprises a hollow feed box, a feed port and a discharge port are respectively arranged at the top and the bottom of the feed box, and a connecting rod penetrating through the feed port and the discharge port is arranged in the feed box. A plug with the outer diameter larger than that of the discharging port is arranged at the bottom end of the connecting rod, a hanging ring is arranged at the top end of the connecting rod, and a plurality of steel wire ropes connected with the hanging ring are arranged at the top of the material box. Compared with the prior art, the feeding device has the advantages that the connecting rod is matched with the plug and the hanging ring which are arranged at the two ends of the connecting rod respectively, so that feeding operation of the fluoride salt material box is rapidly and efficiently completed, the safety coefficient during operation is improved, and meanwhile the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum electrolysis production technical field, specifically, relate to a kind of aluminium electrolytic cell fluoridated salt feeding device. BACKGROUND

[0002] In the electrolytic production process, fluoridated salt needs to be added to the fluoridated salt tank of the electrolytic cell regularly. The feeding port of the electrolytic cell tank is located at a relatively high position, and the structure of the top of the electrolytic cell is complex, so the feeding operation is very troublesome and dangerous.

[0003] A fluoridated salt feeding special tank is disclosed in the utility model with publication number CN218752593U, which comprises a bottom plate, a tank body arranged on the top of the bottom plate, a feeding mechanism fixedly connected inside the tank body, and a pushing mechanism fixedly connected on the top of the bottom plate. The feeding mechanism comprises a feeding hopper fixedly connected to the top of the tank body, a discharge pipe fixedly connected to the bottom of the tank body, a sealing cover arranged inside the tank body, a push plate fixedly connected to the bottom of the sealing cover, and the push plate extending outside the discharge pipe. The feeding device provided by the patent has a complex structure and is difficult to operate. When the tank is full of fluoridated salt, pressure is generated on the sealing cover, making it difficult to move upward and open. As a result, fluoridated salt cannot be discharged from the tank. UTILITY MODEL CONTENT

[0004] To overcome the problems of complex structure, difficult operation and unopenable sealing cover in the prior art, the utility model provides an aluminium electrolytic cell fluoridated salt feeding device, which comprises a hollow tank, an inlet and an outlet arranged on the top and bottom of the tank respectively, a connecting rod arranged inside the tank and penetrating the inlet and the outlet, a plug with an outer diameter larger than that of the outlet arranged at the bottom end of the connecting rod, a hanging ring arranged at the top end of the connecting rod, and a plurality of steel wires connected to the hanging ring.

[0005] The connecting rod penetrates the tank, one end of the connecting rod outside the outlet is provided with a plug, and the other end is connected to the hanging ring. When the tank is full of fluoridated salt and is lifted by the overhead crane through the hanging ring, the connecting rod connected to the hanging ring moves upward, causing the plug to block the outlet. When fluoridated salt is added, the outlet is aligned with the feeding port at the top of the electrolytic cell, the tank is placed on the top of the electrolytic cell, and the connection between the overhead crane and the hanging ring is removed. At this time, the connecting rod moves downward under the action of its own gravity with the plug, causing fluoridated salt to flow out of the outlet. Through the cooperation of the connecting rod, the plug and the hanging ring, the feeding operation of the fluoridated salt tank can be quickly and efficiently completed, the safety factor during operation is improved, the labor intensity of workers is reduced, and the device provided by the utility model has a simple structure and is easy to operate. The fluoridated salt cannot press the plug to move.

[0006] Preferably, the plug is conical to reduce the pressure of the fluorinated salt in the tank on the plug.

[0007] Preferably, a discharge cylinder is coaxially arranged at the outer periphery of the discharge port of the bottom of the tank, the inner diameter of the discharge cylinder is equal to the outer diameter of the discharge port, and the plug is located below the discharge cylinder, so that the tank is more easily aligned with the charging port of the top of the electrolytic cell through the discharge cylinder.

[0008] Preferably, an annular member is coaxially arranged on the inner wall of the lower end of the discharge cylinder, and the upper surface of the plug is attached to the lower surface of the annular member when the plug is in the closed state.

[0009] Preferably, the upper surface of the annular member is a slope inclined to the center of the annular member, and the annular member with the upper and lower surfaces inclined is arranged to have the effect of force division and buffering, so as to avoid damage to the plug caused by excessive pressure.

[0010] Preferably, the bottom of the tank is conical, so that the fluorinated salt in the tank flows out of the discharge port better and the fluorinated salt remaining in the tank is reduced.

[0011] Preferably, the ends of the steel wires away from the hanging rings are evenly arranged on the upper surface of the tank in a circumferential direction.

[0012] Preferably, the number of steel wires is 3-6, and the circumferential arrangement of the steel wires connected with the hanging rings makes the tank be evenly stressed and kept in a vertical state when the tank is lifted by the headgear, so as to avoid fluorinated salt from spilling.

[0013] Preferably, the guide pipe is sleeved on the outer surface of the connecting rod and coaxial with the discharge port, and the outer surface of the guide pipe is provided with support rods, and the ends of the support rods away from the guide pipe are connected with the inner wall of the tank.

[0014] Preferably, the number of support rods is 2-4.

[0015] The guide pipe coaxial with the discharge port and sleeved on the outer surface of the connecting rod ensures smooth movement of the connecting rod, and the position of the guide pipe is fixed by the support rods, so as to avoid the friction force and horizontal pressure generated by the tank filled with fluorinated salt on the connecting rod, so that the connecting rod cannot be lowered in time, resulting in failure of charging.

[0016] Beneficial effects:

[0017] The beneficial effects of the technical scheme of the utility model are as follows:

[0018] (1) The connecting rod provided in the present application runs through the material box, and a plug is provided at one end of the connecting rod outside the discharge port, and the other end is connected to a hanging ring. When the material box is filled with fluoride salt and is lifted by the overhead crane through the hanging ring, the connecting rod connected to the hanging ring moves upward so that the plug blocks the material box. When fluoride salt is added, the discharge port is aligned with the feeding port at the top of the electrolytic cell, the material box is placed on the top of the electrolytic cell and the connection between the overhead crane and the hanging ring is removed. At this time, the connecting rod moves downward with the plug under the action of its own gravity so that the fluoride salt flows out from the discharge port. The coordination of the connecting rod, the plug and the hanging ring can realize the rapid and efficient completion of the fluoride salt material box feeding operation, thereby improving the safety factor during operation and reducing the labor intensity of workers. In addition, the device provided in the present application has a simple structure and is easy to operate, which avoids the situation where the fluoride salt presses on the plug and makes it difficult to move the plug.

[0019] (2) The present application sets the bottom of the material box into a cone shape so that the fluoride salt in the material box can flow out from the discharge port better, thereby reducing the residual fluoride salt in the material. In addition, the discharge barrel provided at the discharge port at the bottom of the material box makes it easier for the discharge port of the material box to align with the feeding port of the electrolytic cell, and the annular parts with inclined upper and lower surfaces provided on the inner wall of the lower end of the discharge barrel have the effect of force distribution and buffering, thereby preventing the plug from being damaged by excessive pressure.

[0020] (3) The present application reduces the pressure of the fluoride salt in the material box on the plug by setting the plug into a cone shape. In addition, the smooth movement of the connecting rod is ensured by a conical sleeve provided on the outer surface of the connecting rod with the same central axis as the discharge port, thereby avoiding the friction and horizontal pressure on the connecting rod when the material is filled with fluoride salt, which may cause the connecting rod to be unable to be lowered in time and cause the feeding failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Fig. 1 This is a cross-sectional view of the fluoride salt feeding device for an aluminum electrolytic cell according to the present invention;

[0023] Fig. 2 It is a top view of the fluoride salt feeding device for aluminum electrolytic cell of the utility model.

[0024] In the figure: 1. material box; 101. feed port; 102. discharge port; 2. connecting rod; 3. hanging ring; 4. plug; 5. discharge barrel; 6. ring; 7. guide tube; 8. support rod; 9. wire rope. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the utility model, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model.

[0026] The embodiment realizes quick and efficient completion of the fluorinated salt charging operation of the fluorinated salt bin through the cooperation of the connecting rod and the plug and the hanging ring arranged at the two ends of the connecting rod, improves the safety factor during operation, and reduces the labor intensity of workers. The specific implementation is as follows:

[0027] As shown in Figs. 1-2 An aluminum electrolysis cell fluorinated salt charging device, comprising a hollow bin 1, the top and bottom of the bin 1 are respectively provided with a feeding port 101 and a discharging port 102, the inside of the bin 1 is provided with a connecting rod 2 penetrating through the feeding port 101 and the discharging port 102, the bottom end of the connecting rod 2 is provided with a plug 4 with an outer diameter larger than that of the discharging port 102, the top end of the connecting rod 2 is provided with a hanging ring 3, and the top of the bin 1 is provided with a plurality of steel wire ropes 9 connected with the hanging ring 3.

[0028] The connecting rod 2 provided in the application penetrates through the bin 1, one end of the connecting rod 2 located outside the discharging port 102 is provided with the plug 4, and the other end is connected with the hanging ring 3. When the bin 1 is filled with fluorinated salt and is lifted by the crown block through the hanging ring 3, the connecting rod 2 connected with the hanging ring 3 moves upward to make the plug 4 block the discharging port 102. When fluorinated salt is charged, the discharging port 102 is aligned with the charging port at the top of the electrolysis cell, the bin 1 is placed at the top of the electrolysis cell, and the connection between the crown block and the hanging ring 3 is removed. At this time, the connecting rod 2 moves downward with the plug 4 under the action of its own gravity to make the fluorinated salt flow out of the discharging port 102. Through the cooperation of the connecting rod 2, the plug 4 and the hanging ring 3, the fluorinated salt bin 1 charging operation can be quickly and efficiently completed, the safety factor during operation is improved, the labor intensity of workers is reduced, and the device provided by the application has simple structure and simple operation, which avoids the situation that the fluorinated salt presses the plug 4 to make the plug 4 difficult to move.

[0029] Specifically, the plug 4 is conical to reduce the pressure of the fluorinated salt in the bin 1 on the plug 4.

[0030] Specifically, the outer periphery of the discharge port 102 of the bottom of the material box 1 is coaxially provided with a discharge cylinder 5, the inner diameter of the discharge cylinder 5 is equal to the outer diameter of the discharge port 102, and the plug 4 is located below the discharge cylinder 5, so that the material box 1 is more easily aligned with the charging port of the top of the electrolytic cell through the discharge cylinder 5.

[0031] Specifically, the inner wall of the lower end of the discharge cylinder 5 is coaxially provided with an annular part 6, and when the plug 4 is in the closed state, the upper surface of the plug 4 is in contact with the lower surface of the annular part 6.

[0032] Specifically, the upper surface of the annular part 6 is a slope inclined to the center of the annular part 6, and the annular part 6 with the upper and lower surfaces inclined is arranged to have the effect of force division and buffering, so as to avoid damage to the plug 4 caused by excessive pressure.

[0033] Specifically, the bottom of the material box 1 is conical, so that the fluorinated salt in the material box 1 flows out of the discharge port 102 better, and the residual fluorinated salt in the material box 1 is reduced.

[0034] Specifically, the steel wire ropes 9 are evenly arranged on the upper surface of the material box 1 in a circumferential direction away from the hanging ring 3.

[0035] Specifically, the number of steel wire ropes 9 is 3-6, and the circumferential arrangement of the steel wire ropes 9 and the connection with the hanging ring 3 make the material box 1 bear force evenly and maintain a vertical state when the material box 1 is lifted by the overhead crane, so as to avoid fluorinated salt from spilling.

[0036] Specifically, the guide pipe 7 is sleeved on the outer surface of the connecting rod 2, and the guide pipe 7 is coaxial with the discharge port 102, and the outer surface of the guide pipe 7 is provided with a support rod 8, and the end of the support rod 8 away from the guide pipe 7 is connected with the inner wall of the material box 1.

[0037] Specifically, the number of support rods 8 is 2-4.

[0038] The guide pipe 7 coaxial with the discharge port 102 and sleeved on the outer surface of the connecting rod 2 ensures the smooth movement of the connecting rod 2, and the position of the guide pipe 7 is fixed by the support rod 8, so as to avoid the friction force and horizontal pressure generated by the material box filled with fluorinated salt to the connecting rod 2, so that the connecting rod 2 cannot be lowered in time, causing the charging to fail.

[0039] Working principle: when the material box is filled with fluorinated salt and lifted by the overhead crane through the hanging ring, the connecting rod connected with the hanging ring moves upward to make the plug block the discharge port; when fluorinated salt is charged, the discharge cylinder is aligned with the charging port at the top of the electrolytic cell, the material box is placed at the top of the electrolytic cell, and the connection between the overhead crane and the hanging ring is removed, at this time the connecting rod moves downward under the action of its own gravity with the plug, so that the fluorinated salt flows out of the discharge port.

[0040] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fluoride salt feeding device for an aluminum electrolytic cell, characterized in that: The invention comprises a hollow material box (1), wherein the top and bottom of the material box (1) are respectively provided with a feed port (101) and a discharge port (102), the interior of the material box (1) is provided with a connecting rod (2) passing through the feed port (101) and the discharge port (102), the bottom end of the connecting rod (2) is provided with a plug (4) whose outer diameter is larger than the outer diameter of the discharge port (102), the top end of the connecting rod (2) is provided with a hanging ring (3), and the top of the material box (1) is provided with a plurality of steel ropes (9) connected to the hanging ring (3).

2. The fluoride salt feeding device for an aluminum electrolytic cell according to claim 1, characterized in that: The plug (4) is conical.

3. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 1, characterized in that: A discharge barrel (5) is coaxially arranged at the outer periphery of the discharge port (102) at the bottom of the material box (1), the inner diameter of the discharge barrel (5) is equal to the outer diameter of the discharge port (102), and the plug (4) is located below the discharge barrel (5).

4. The fluoride salt feeding device for an aluminum electrolytic cell according to claim 3, characterized in that: An annular member (6) is coaxially arranged on the inner wall of the lower end of the discharge barrel (5); when the plug (4) is in a blocking state, the upper surface of the plug (4) fits into the lower surface of the annular member (6).

5. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 4, characterized in that: The upper surface of the annular member (6) is an inclined surface inclined toward the center of the annular member (6).

6. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 1, characterized in that: The bottom of the material box (1) is conical.

7. The fluoride salt feeding device for an aluminum electrolytic cell according to claim 1, characterized in that: One end of the steel wire rope (9) away from the hanging ring (3) is evenly distributed circumferentially on the upper surface of the material box (1).

8. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 1, characterized in that: The number of the steel wire ropes (9) is 3 to 6.

9. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 1, characterized in that: The conduit (7) is sleeved on the outer surface of the connecting rod (2), and the conduit (7) is coaxial with the discharge port (102). A support rod (8) is provided on the outer surface of the conduit (7), and the end of the support rod (8) away from the conduit (7) is connected to the inner wall of the material box (1).

10. The fluoride salt feeding device for an aluminum electrolysis cell according to claim 9, characterized in that: The number of the support rods (8) is 2 to 4.

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