A crane for use in the production of aluminium by electrolysis in an aluminium plant

Abstract

This utility model discloses a crane for electrolytic aluminum production in an aluminum plant, relating to the field of electrolytic aluminum production technology. It includes a traveling crane and a stirring rod. A lifting assembly is rotatably connected to the top of the traveling crane, and a moving trolley is rotatably connected to the middle of the traveling crane. A material suction assembly and a slag removal assembly are installed at the bottom of the moving trolley. A feeding tank is fixedly connected to one side of the moving trolley. A stirring rod is rotatably connected inside the feeding tank via bearings. A drive mechanism is provided at the top of the stirring rod to rotate it. This crane for electrolytic aluminum production in an aluminum plant can drive the stirring rod inside the feeding tank to rotate, thereby mixing the internal materials. Simultaneously, during feeding, a reciprocating motion mechanism can be activated, thereby moving a clearing rod and a clearing ball up and down to clear the bottom of the feeding tank, reducing blockage. A material distribution mechanism can evenly add materials into the feeding tank.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic aluminum production technology, specifically a crane used in electrolytic aluminum production in aluminum plants. Background Technology

[0002] Cranes used in electrolytic aluminum production are special heavy-duty lifting equipment designed specifically for the electrolytic aluminum smelting process. They mainly serve the entire production process of the electrolytic cell (the core equipment of aluminum electrolysis), undertaking key operations such as aluminum liquid hoisting, anode replacement, electrolyte cleaning, and electrolytic cell maintenance. They are the core equipment to ensure the continuous, safe, and efficient operation of electrolytic aluminum production.

[0003] As disclosed in the invention publication CN116162966A, a multi-functional overhead crane feeding device for electrolytic aluminum uses a first motor to rotate an inclined column on a rotating shaft. This causes the inclined column to rotate and continuously push the abutment column in the chute to move to the left within the chute. Simultaneously, a first spring installed on the outside of the abutment column and the feed box continuously pushes the abutment column to move to the right. This causes the impact block at the bottom of the abutment column to continuously impact the blocky additives entering the chute. At the same time, the entire electric push rod drives the inclined column to move up and down on the rotating shaft surface, adjusting the impact force between the impact block and the wear-resistant coating plate. This prevents a large amount of blocky additives from clogging the feeding pipe and also facilitates better mixing of the additives with the electrolyte.

[0004] When the above-mentioned solution is used, the crane feeding device for electrolytic aluminum production will generate vibration at the bottom of the feeding device through a vibration mechanism to reduce blockage when the feeding device is discharging. However, when the material is tightly stuck, it is difficult to clear the blockage by vibration. Furthermore, when mixing multiple materials, since the materials enter the feeding device from one location, it is difficult to distribute them evenly inside the feeding device, resulting in poor mixing effect with other materials. Utility Model Content

[0005] The purpose of this utility model is to provide a crane for electrolytic aluminum production in aluminum plants, in order to solve the problem mentioned in the background art that the existing electrolytic aluminum production crane feeding device generates vibration at the bottom of the feeding device through a vibration mechanism to reduce blockage when the feeding device is discharging material. However, when the material is tightly stuck, it is difficult to clear the blockage by vibration. Furthermore, when mixing multiple groups of materials, since the materials enter the feeding device from one position, it is difficult to distribute them evenly inside the feeding device, resulting in poor mixing effect with other materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A crane for electrolytic aluminum production in an aluminum plant, comprising a traveling crane and a stirring rod. A lifting assembly is rotatably connected to the top of the traveling crane, and a moving trolley is rotatably connected to the middle of the traveling crane. A material suction assembly and a slag removal assembly are installed at the bottom of the moving trolley. A feeding tank is fixedly connected to one side of the moving trolley. A stirring rod is rotatably connected inside the feeding tank via bearings. A drive mechanism for rotating the stirring rod is provided at the top. A clearing rod is slidably connected inside the stirring rod. A clearing ball is fixedly connected to the bottom of the clearing rod. A reciprocating motion mechanism is provided at the top of the clearing rod. A feed inlet is connected to one side of the top of the traveling crane. A circular groove matching the clearing rod is opened inside the stirring rod, and the clearing rod and the stirring rod form a sliding structure. A material distribution mechanism is provided at the bottom of the feed inlet.

[0007] Furthermore, the drive mechanism includes a mounting bracket fixedly connected to the top of the feed tank, a motor a fixedly connected to the top of the mounting bracket, and a drive gear fixedly connected to the output end of the motor a.

[0008] Furthermore, a driven gear is meshed with the outer side of the drive gear, and the inner side of the driven gear is fixed to the stirring rod. The interior of the mounting bracket is rotatably connected to the stirring rod through a bearing, and the drive gear and the driven gear form a meshing transmission structure.

[0009] Furthermore, the reciprocating motion mechanism includes a motor b fixedly connected to the top of the mounting frame, a crankshaft fixedly connected to the output end of the motor b, a crossbar slidably connected to the middle of the crankshaft, and one end of the crankshaft rotatably connected to the mounting frame via a bearing.

[0010] Furthermore, the crossbar has a through groove inside that matches the crankshaft, and the bottom of the crossbar is fixedly connected to the unblocking rod, with the crankshaft and the crossbar forming a sliding structure.

[0011] Furthermore, the material distribution mechanism includes a bracket fixed to the outside of the stirring rod, one end of the bracket is fixedly connected to a connecting ring, and multiple material distribution plates are fixedly connected to the inner side of the connecting ring. The material distribution plates are inclined inside the connecting ring, and the multiple material distribution plates are distributed at non-equidistant angles inside the connecting ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the crane used for electrolytic aluminum production in the aluminum plant can drive the stirring rod inside the feeding tank to rotate through the drive device, thereby mixing the internal materials. At the same time, the reciprocating motion mechanism can be activated during feeding, thereby driving the unblocking rod and unblocking ball to move up and down, unblocking the material outlet at the bottom of the feeding tank, reducing blockage at the bottom of the feeding tank. The material can be evenly added into the feeding tank through the material distribution mechanism.

[0013] 1. By starting motor a, the stirring rod can be rotated to mix the material inside the feeding tank. When the mixing is completed and the material is being discharged, starting motor b drives the crankshaft to slide in the through groove of the crossbar, thereby moving the crossbar up and down to move the unblocking rod and unblocking ball to clear the material being discharged from the bottom of the feeding tank, breaking up the blocked material and reducing the blockage.

[0014] 2. When the stirring rod rotates, the connecting ring will rotate with the stirring rod, and drive the internal distribution plates to rotate as well. Since the spacing between the multiple distribution plates in the connecting ring is different, the two distribution plates with smaller spacing can carry the material into the feed tank at a position farther from the feed inlet, while the two distribution plates with larger spacing can carry the material into a position closer to the feed inlet, so that the material falls evenly into different positions in the feed tank. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the mobile vehicle of this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the feeding tank of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram at point A; Figure 5 This is a schematic diagram of the three-dimensional structure of the crossbar of this utility model; Figure 6 This is a three-dimensional structural diagram of the material distribution plate of this utility model.

[0016] In the diagram: 1. Overhead crane; 2. Lifting assembly; 3. Moving trolley; 4. Suction assembly; 5. Slag removal assembly; 6. Feed tank; 7. Agitator rod; 8. Motor a; 9. Drive gear; 10. Driven gear; 11. Unclogging rod; 12. Unclogging ball; 13. Motor b; 14. Crankshaft; 15. Crossbar; 16. Bracket; 17. Connecting ring; 18. Distributor plate; 19. Mounting frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figures 1-3This utility model provides the following technical solution: A crane for electrolytic aluminum production in an aluminum plant, comprising a traveling crane 1 and a stirring rod 7. A lifting assembly 2 is rotatably connected to the top of the traveling crane 1, and a moving vehicle 3 is rotatably connected to the middle of the traveling crane 1. A material suction assembly 4 and a slag removal assembly 5 are installed at the bottom of the moving vehicle 3. A feeding tank 6 is fixedly connected to one side of the moving vehicle 3. The stirring rod 7 is rotatably connected to the inside of the feeding tank 6 via a bearing. A drive mechanism for rotating the stirring rod 7 is provided at the top of the stirring rod 7. A slidable rod 11 is slidably connected to the inside of the stirring rod 7, and a sludge removal rod is fixedly connected to the bottom of the sludge removal rod 11. The top of the ball 12 and the unblocking rod 11 is equipped with a reciprocating motion mechanism. A feed port is connected to one side of the top of the trolley 1. The inside of the stirring rod 7 is provided with a circular groove that matches the unblocking rod 11. The unblocking rod 11 and the stirring rod 7 form a sliding structure. The crane used for electrolytic aluminum production in this aluminum plant can drive the lifting assembly 2 and the moving car 3 to move on the trolley 1 through the drive device. The lifting assembly 2 can lift objects, while the slag removal assembly 5 at the bottom of the moving car 3 can remove waste slag from the electrolytic cell. The feeding tank 6 can feed the materials and additives that need to be added during electrolytic aluminum production.

[0019] Please see Figures 3-5 The drive mechanism includes a mounting frame 19 fixedly connected to the top of the feeding tank 6. A motor a8 is fixedly connected to the top of the mounting frame 19, and a drive gear 9 is fixedly connected to the output end of the motor a8. A driven gear 10 is meshed with the outer side of the drive gear 9, and the inner side of the driven gear 10 is fixed to the stirring rod 7. The interior of the mounting frame 19 is rotatably connected to the stirring rod 7 through a bearing. The drive gear 9 and the driven gear 10 form a meshing transmission structure. In order to mix the material in the feeding tank 6, the motor a8 is started to drive the drive gear 9 to mesh with the driven gear 10, thereby driving the driven gear 10 to rotate. The driven gear 10 will drive the stirring rod 7 fixed inside to rotate, thereby mixing the material inside the feeding tank 6.

[0020] Please see Figures 3-5 The reciprocating motion mechanism includes a motor b13 fixedly connected to the top of the mounting frame 19. A crankshaft 14 is fixedly connected to the output end of the motor b13. A crossbar 15 is slidably connected to the middle of the crankshaft 14. One end of the crankshaft 14 is rotatably connected to the mounting frame 19 through a bearing. A through groove matching the crankshaft 14 is opened inside the crossbar 15. The bottom of the crossbar 15 is fixedly connected to the unblocking rod 11. The crankshaft 14 and the crossbar 15 form a sliding structure. When it is necessary to open the valve at the bottom of the feeding tank 6 to feed materials, the motor b13 is started to drive the crankshaft 14 to rotate. The crankshaft 14 will slide in the through groove of the crossbar 15, thereby moving the crossbar 15 up and down. The unblocking rod 11 at the bottom of the crossbar 15 will reciprocate in the stirring rod 7 and drive the unblocking ball 12 at the bottom to move up and down. The unblocking ball 12 moving up and down will unblock the material fed from the bottom of the feeding tank 6, break up the blocked material, and reduce the blockage.

[0021] In this way, the material being fed into the feeding tank 6 can be prevented from clogging and the internal material can be mixed. Example 2:

[0022] Please see Figure 3 and Figure 6 Based on Embodiment 1, a material distribution mechanism that allows materials to be evenly fed into the feeding tank 6 is also disclosed. Its specific structure is as follows: a material distribution mechanism is provided at the bottom of the feed inlet. The material distribution mechanism includes a bracket 16 fixed to the outside of the stirring rod 7. A connecting ring 17 is fixedly connected to one end of the bracket 16. Multiple material distribution plates 18 are fixedly connected to the inner side of the connecting ring 17. The material distribution plates 18 are inclined inside the connecting ring 17. The multiple material distribution plates 18 are distributed at non-equidistant angles inside the connecting ring 17.

[0023] Please see Figure 3 and Figure 6 In this aluminum plant, the crane used for electrolytic aluminum production employs a connecting ring 17 fixed to the outside of the stirring rod 7 to ensure uniform feeding when adding materials into the feeding tank 6. The connecting ring 17 rotates with the stirring rod 7, causing the internal distribution plates 18 to rotate as well. Since the distribution plates 18 are inclined within the connecting ring 17, and the spacing between the multiple distribution plates 18 within the connecting ring 17 varies, when materials enter between two distribution plates 18 with smaller spacing, they will not be quickly discharged into the feeding tank 6. Some materials will rotate with the distribution plates 18 and be discharged to other positions in the feeding tank 6, farther from the inlet. When materials enter between two distribution plates 18 with larger spacing, they will be discharged quickly, falling closer to the inlet. This allows the materials to be evenly distributed into different positions in the feeding tank 6, thereby improving the uniformity of mixing.

[0024] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crane for producing electrolytic aluminum in an aluminum plant, comprising a trolley (1) and a stirring rod (7), wherein a lifting assembly (2) is rotatably connected to the top of the trolley (1), and a moving vehicle (3) is rotatably connected to the middle of the trolley (1). Its features are: The bottom of the mobile vehicle (3) is equipped with a material suction assembly (4) and a slag removal assembly (5). A feeding tank (6) is fixedly connected to one side of the mobile vehicle (3). A stirring rod (7) is rotatably connected inside the feeding tank (6) through a bearing. A driving mechanism is provided at the top of the stirring rod (7) to drive it to rotate. A dredging rod (11) is slidably connected inside the stirring rod (7). A dredging ball (12) is fixedly connected to the bottom of the dredging rod (11). A reciprocating motion mechanism is provided at the top of the dredging rod (11). A feed inlet is connected to one side of the top of the traveling vehicle (1). A circular groove matching the dredging rod (11) is opened inside the stirring rod (7). The dredging rod (11) and the stirring rod (7) form a sliding structure. A material distribution mechanism is provided at the bottom of the feed inlet.

2. The crane for electrolytic aluminum production in an aluminum plant according to claim 1, characterized in that: The drive mechanism includes a mounting bracket (19) fixedly connected to the top of the feed tank (6), a motor a (8) fixedly connected to the top of the mounting bracket (19), and a drive gear (9) fixedly connected to the output end of the motor a (8).

3. A crane for use in an aluminium smelter for the production of aluminium by electrolysis as claimed in claim 2, characterised in that: The outer side of the drive gear (9) is meshed with a driven gear (10), the inner side of the driven gear (10) is fixed to the stirring rod (7), and the interior of the mounting bracket (19) is rotatably connected to the stirring rod (7) through a bearing. The drive gear (9) and the driven gear (10) form a meshing transmission structure.

4. A crane for use in the production of aluminium by electrolysis in an aluminium plant according to claim 1, characterised in that: The reciprocating motion mechanism includes a motor b (13) fixedly connected to the top of the mounting frame (19), a crankshaft (14) fixedly connected to the output end of the motor b (13), a crossbar (15) slidably connected to the middle of the crankshaft (14), and one end of the crankshaft (14) rotatably connected to the mounting frame (19) through a bearing.

5. A crane for use in an aluminium reduction plant as claimed in claim 4, characterised in that: The crossbar (15) has a through groove inside that matches the crankshaft (14). The bottom of the crossbar (15) is fixedly connected to the unblocking rod (11). The crankshaft (14) and the crossbar (15) form a sliding structure.

6. A crane for use in the production of aluminium by electrolysis in an aluminium plant according to claim 1, characterised in that: The material distribution mechanism includes a bracket (16) fixed on the outside of the stirring rod (7). One end of the bracket (16) is fixedly connected to a connecting ring (17). Multiple material distribution plates (18) are fixedly connected to the inside of the connecting ring (17). The material distribution plates (18) are inclined inside the connecting ring (17). The multiple material distribution plates (18) are distributed at non-equidistant angles inside the connecting ring (17).

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