A special steel pallet for transferring cathode carbon blocks

Abstract

This utility model discloses a special steel pallet for transferring cathode carbon blocks, relating to the field of cathode carbon block transfer technology for aluminum electrolysis. It includes a pallet surface with a supporting frame, comprising an outer frame and an inner frame. The outer frame is rectangular, and both the outer and inner frames are fixedly mounted on the pallet surface. The outer frame's outer perimeter is smaller than the pallet surface's area. The inner frame is arranged perpendicular to the long side of the outer frame, and its two ends are fixedly connected to the inner wall of the long side of the outer frame. Reinforcing components are provided around the outer frame. This utility model constructs a double-layer support system through the outer and inner frames, effectively solving the problems of structural redundancy and deformation in stress concentration areas of traditional steel pallets, while ensuring material utilization and simultaneously improving structural lightweighting and mechanical performance.

Description

Technical Field

[0001] This utility model relates to the field of cathode carbon block transfer technology for aluminum electrolysis, and in particular to a special steel tray for cathode carbon block transfer. Background Technology

[0002] In the aluminum electrolysis production process, the cathode carbon block is a key component of the electrolytic cell, and its transfer efficiency and safety directly affect production continuity and cost control. Traditional transfer methods mostly rely on manual labor with simple tooling, which suffers from cumbersome operation procedures, high labor intensity, and significant safety hazards. For example, the cathode carbon block is large in size and weight (usually exceeding 1 ton), and its surface groove structure is easily damaged. With the industry's increasing demand for lightweight and efficient transfer equipment, existing technologies such as welded steel channel frames or inverted L-shaped reinforced corner plate pallet designs still face challenges such as structural redundancy and easy deformation in stress concentration areas. Therefore, developing a steel pallet that balances lightweight design and high reliability has become a key direction for solving industry pain points. Utility Model Content

[0003] The purpose of this utility model is to provide a special steel pallet for transferring cathode carbon blocks, which solves the problems mentioned in the background art that the existing channel steel welded frame or inverted L-shaped reinforced corner plate pallet design still faces structural redundancy and easy deformation in stress concentration areas.

[0004] The present invention adopts the following technical solution:

[0005] This utility model discloses a special steel pallet for transferring cathode carbon blocks, including a pallet surface, on which a support frame is provided, the support frame including an outer frame and an inner frame;

[0006] The outer frame is a rectangular frame. Both the outer frame and the inner frame are fixedly installed on the plate surface. The outer perimeter area of ​​the outer frame is smaller than the area of ​​the plate surface. The inner frame is arranged perpendicular to the long side of the outer frame, and both ends of the inner frame are fixedly connected to the inner wall of the long side of the outer frame.

[0007] The outer frame is reinforced with reinforcing components around its perimeter.

[0008] Preferably, both the outer frame and the inner frame are U-shaped channel steel structures; the U-shaped opening of the outer frame faces the inside of the frame.

[0009] Preferably, the reinforcing component includes a plurality of reinforcing corner plates and reinforcing ribs, the reinforcing corner plates and the reinforcing ribs being evenly arranged around the perimeter of the outer frame;

[0010] The outer wall of the outer frame is fixedly connected to one side of the reinforcing angle plate, and the reinforcing angle plate is fixedly connected to the disk surface;

[0011] The outer wall of the outer frame is fixedly connected to one side of the reinforcing rib plate, and the reinforcing rib plate is fixedly connected to the disk surface.

[0012] Preferably, the reinforcing angle plate is an L-shaped angle steel structure. One side plate of the reinforcing angle plate is perpendicular to the disk surface and fixedly connected to the disk surface. The other side plate of the reinforcing angle plate is perpendicular to the outer wall of the outer frame and fixedly connected to the outer wall of the outer frame. The two side plates of the reinforcing angle plate, the outer wall of the outer frame, and the disk surface enclose a rectangular channel.

[0013] Preferably, the reinforcing rib is an L-shaped steel plate structure, the reinforcing rib is arranged perpendicular to the outer wall of the outer frame and the disc surface, one right-angled side of the reinforcing rib is attached to the outer wall of the outer frame and fixedly connected to the outer wall of the outer frame, and the other right-angled side of the reinforcing rib is attached to the disc surface and fixedly connected to the disc surface.

[0014] Preferably, the plate surface is provided with a lifting lug plate.

[0015] Preferably, at least two reinforcing ribs are provided on the wide side of the outer frame; the bottom edge of the lifting lug is fixedly disposed on the plate surface, and the side wall of the lifting lug is fixedly connected to the reinforcing rib.

[0016] Preferably, the thickness of the disk surface gradually increases from the center to the edge along the long side direction.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] This utility model constructs a double-layer support system through an outer frame and an inner frame, and effectively solves the problems of structural redundancy and easy deformation in stress concentration areas of traditional steel pallets by combining reinforcing components. Under the premise of ensuring material utilization, it achieves simultaneous improvement in structural lightweighting and mechanical performance, meeting the technical requirements of high strength, high stability and high safety factor in heavy material transportation scenarios. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the steel tray structure for transferring cathode carbon blocks according to this utility model. Figure 1 ;

[0021] Figure 2 This is a top view of the steel tray for transferring cathode carbon blocks according to this utility model;

[0022] Figure 3 This is a side view of the steel tray for transferring cathode carbon blocks according to this utility model;

[0023] Figure 4 This is a schematic diagram of the steel tray structure for transferring cathode carbon blocks according to this utility model. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the steel tray structure for transferring cathode carbon blocks according to this utility model. Figure 3 ;

[0025] Figure 6 This is a cross-sectional view along the width of the steel pallet for transferring cathode carbon blocks according to this utility model.

[0026] Figure 7 This is a cross-sectional view along the length of the steel pallet for transferring cathode carbon blocks according to this utility model.

[0027] Figure 8 This refers to an existing tray mentioned in the background section.

[0028] Explanation of reference numerals in the attached drawings: 1. Disc surface; 2. Support frame; 2-1. Outer frame; 2-2. Inner frame; 3. Reinforcing components; 3-1. Reinforcing corner plate; 3-2. Reinforcing rib plate; 4. Lifting lug plate. Detailed Implementation

[0029] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3 As shown, this embodiment discloses a special steel tray for transferring cathode carbon blocks, including a tray surface 1. A support frame 2 is provided on the tray surface 1, and the support frame 2 includes an outer frame 2-1 and an inner frame 2-2. The outer frame 2-1 is a rectangular frame. Both the outer frame 2-1 and the inner frame 2-2 are fixedly installed on the tray surface 1. The outer perimeter area of ​​the outer frame 2-1 is smaller than the area of ​​the tray surface 1. The inner frame 2-2 is arranged perpendicular to the long side of the outer frame 2-1, and both ends of the inner frame 2-2 are fixedly connected to the inner wall of the long side of the outer frame 2-1. Reinforcing components 3 are provided around the outer frame 2-1.

[0031] like Figure 4As shown, both the outer frame 2-1 and the inner frame 2-2 are U-shaped channel steel structures, with the U-shaped opening of the outer frame 2-1 facing the inner side of the overall frame. In this embodiment, the outer frame 2-1 serves as the main load-bearing unit, while the inner frame 2-2 provides stress compensation. The outer frame 2-1, as the core load-bearing unit, has its channel steel section optimized through cold bending forming, reducing material redundancy while ensuring the foundation's bending modulus, thus achieving lightweighting. The inner frame 2-2 is connected to the outer frame 2-1 via multi-node welding, and its layout is dynamically adjusted based on stress concentration areas in mechanical simulations, focusing on strengthening the local strength of the four corners of the disc 1 and the mounting area of ​​the lifting lugs 4. This double-layer structure design not only allows the outer frame 2-1 to bear the main load but also utilizes the inner frame 2-2 to disperse stress peaks to surrounding areas, significantly reducing the risk of structural fatigue caused by concentrated stress. For example, when the weight distribution of the cathode carbon block is uneven, the synergistic effect of the outer frame 2-1 and the inner frame 2-2 can control local deformation within the elastic range, avoiding permanent deformation. In addition, the welding between the channel steels adopts CO2 gas shielded welding process to form continuous welds to enhance the interfacial bonding strength, so that the overall frame can still remain stable under dynamic loads.

[0032] The reinforcing component 3 includes several reinforcing corner plates 3-1 and reinforcing ribs 3-2. The reinforcing corner plates 3-1 and reinforcing ribs 3-2 are evenly arranged around the outer frame 2-1. The outer wall of the outer frame 2-1 is fixedly connected to one side of the reinforcing corner plates 3-1, and the reinforcing corner plates 3-1 are fixedly connected to the panel 1. The outer wall of the outer frame 2-1 is fixedly connected to one side of the reinforcing ribs 3-2, and the reinforcing ribs 3-2 are fixedly connected to the panel 1.

[0033] The reinforcing angle plate 3-1 is an L-shaped angle steel structure, vertically welded to the plate surface 1 and the outer frame 2-1 in an inverted L shape. Specifically, one side plate of the reinforcing angle plate 3-1 is perpendicular to the plate surface 1 and welded to it, while the other side plate is perpendicular to the outer wall of the outer frame 2-1 and welded to it. The two side plates of the reinforcing angle plate 3-1, together with the outer wall of the outer frame 2-1 and the plate surface 1, form a rectangular channel. That is, the intersection of the outer wall of the outer frame 2-1 and the plate surface 1 is opposite to the intersection of the two side plates of the reinforcing angle plate 3-1. This design converts the vertical lifting force into a horizontal shear force through geometric shape, reducing stress concentration at the welded joints.

[0034] The stiffening rib 3-2 is an L-shaped steel plate structure, arranged perpendicular to the outer wall of the outer frame 2-1 and the plate surface 1. One right-angled side of the stiffening rib 3-2 is attached to and welded to the outer wall of the outer frame 2-1, while the other right-angled side is attached to and welded to the plate surface 1. Each stiffening rib 3-2, together with the plate surface 1 and the outer frame 2-1, forms a triangular mechanical triangle, utilizing geometric stability to improve torsional resistance. For example, when uneven loading or lateral sway occurs during hoisting, the stiffening rib 3-2 can evenly distribute the lateral force to the perimeter of the plate surface 1, preventing local buckling. In terms of welding technology, the fillet welds of the stiffening rib 3-1 and the stiffening rib 3-2 both employ multi-pass welding technology. By controlling the heat input, performance degradation caused by overheating of the base material is avoided. Simultaneously, the weld surface is ground to eliminate stress concentration sources, further improving structural durability.

[0035] In this embodiment, both the reinforcing angle plate 3-1 and the reinforcing rib plate 3-2 are constructed into a three-dimensional support system through a full penetration welding process.

[0036] like Figure 5 As shown, a lifting lug plate 4 is provided on the disc surface 1, and the lifting lug plate 4 is provided with lifting holes. In this embodiment, at least two reinforcing ribs 3-2 are provided on the wide side of the outer frame 2-1, the bottom edge of the lifting lug plate 4 is fixedly set on the disc surface 1, and the side wall of the lifting lug plate 4 is fixedly connected to the reinforcing ribs 3-2. It should be noted that, according to actual working conditions, symmetrically arranged lifting lug plates 4 can be added along the length of the disc surface 1, ensuring that the lifting lug plates 4 are fixedly connected to the disc surface 1 and the reinforcing ribs 3-2. There is no specific limitation on the number of lifting lug plates 4.

[0037] like Figure 6 As shown, this is a cross-sectional view along the width direction of disk 1. The cross-sectional thickness of disk 1 along the width direction is uniform.

[0038] like Figure 7The diagram shows a cross-sectional view along the length of disc 1. The thickness of disc 1 gradually increases from the center to the edge along its long side. Specifically, disc 1 is made of one-piece molded 45# steel plate, thickened to 22mm at the edges and thinned to 18mm in the center, achieving "on-demand shaping" through optimized material distribution. The thicker areas correspond to the connection points of the outer frame 2-1 and the mounting positions of the lifting lugs 4, used to enhance the rigidity of key load-bearing parts; the thinner areas are concentrated in the non-load-bearing area at the center of disc 1, effectively reducing its weight. The selection of 45# steel balances economy and mechanical properties: its carbon content is controlled within the range of 0.42%-0.50%, and after quenching and tempering, it can achieve a tensile strength of over 450MPa and an elongation of over 20%, meeting the impact resistance requirements under heavy load conditions while avoiding the risk of brittle fracture. The cold bending forming process, through precise control of the die gap, ensures that the curvature tolerance of disc 1 is controlled within ±0.5mm, guaranteeing a good fit when assembled with other components. Furthermore, the surface of disk 1 is shot-peened to achieve a roughness of 0.8-1.6 μm, which enhances the coefficient of friction with the bottom of the cathode carbon block and further reduces the risk of slippage during transportation. This synergistic optimization of materials, structure, and process enables the device to withstand repeated impacts from the cathode carbon block load while reducing its weight by 15%.

[0039] Furthermore, those skilled in the art should know that the side of the disc 1 facing away from the support frame 2 is the contact surface with the cathode carbon block; that is, the support frame 2 faces downwards when the cathode carbon block is being hoisted. To increase the friction with the cathode carbon block, in addition to the surface of the disc 1 being roughened by shot peening as mentioned above, anti-slip textures can also be provided.

[0040] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A steel tray for transporting cathode carbon blocks, characterized by: It includes a plate (1), on which a support frame (2) is provided, the support frame (2) including an outer frame (2-1) and an inner frame (2-2). The outer frame (2-1) is a rectangular frame. Both the outer frame (2-1) and the inner frame (2-2) are fixedly installed on the disk surface (1). The outer perimeter area of ​​the outer frame (2-1) is smaller than the area of ​​the disk surface (1). The inner frame (2-2) is arranged perpendicular to the long side of the outer frame (2-1). The two ends of the inner frame (2-2) are fixedly connected to the inner wall of the long side of the outer frame (2-1). The outer frame (2-1) is provided with reinforcing components (3) around its perimeter.

2. The steel tray for transporting cathode carbon blocks according to claim 1, characterized in that: Both the outer frame (2-1) and the inner frame (2-2) are U-shaped channel steel structures; The U-shaped opening of the outer frame (2-1) faces the inside of the frame.

3. The steel tray for transporting cathode carbon blocks according to claim 1, characterized in that: The reinforcing component (3) includes several reinforcing corner plates (3-1) and reinforcing ribs (3-2), and the reinforcing corner plates (3-1) and the reinforcing ribs (3-2) are evenly arranged around the outer frame (2-1); The outer wall of the outer frame (2-1) is fixedly connected to one side of the reinforcing corner plate (3-1), and the reinforcing corner plate (3-1) is fixedly connected to the disk surface (1); The outer wall of the outer frame (2-1) is fixedly connected to one side of the reinforcing rib (3-2), and the reinforcing rib (3-2) is fixedly connected to the disc surface (1).

4. The steel tray for transporting cathode carbon blocks according to claim 3, characterized in that: The reinforcing angle plate (3-1) is an L-shaped angle steel structure. One side plate of the reinforcing angle plate (3-1) is perpendicular to the disk surface (1) and fixedly connected to the disk surface (1). The other side plate of the reinforcing angle plate (3-1) is perpendicular to the outer wall of the outer frame (2-1) and fixedly connected to the outer wall of the outer frame (2-1). The two side plates of the reinforcing angle plate (3-1), the outer wall of the outer frame (2-1), and the disk surface (1) enclose a rectangular channel.

5. The special steel pallet for transferring cathode carbon blocks according to claim 3, characterized in that: The reinforcing rib (3-2) is an L-shaped steel plate structure. The reinforcing rib (3-2) is arranged perpendicular to the outer wall of the outer frame (2-1) and the disk surface (1). One right-angled side of the reinforcing rib (3-2) is attached to the outer wall of the outer frame (2-1) and fixedly connected to the outer wall of the outer frame (2-1). The other right-angled side of the reinforcing rib (3-2) is attached to the disk surface (1) and fixedly connected to the disk surface (1).

6. The steel tray for transporting cathode carbon blocks according to claim 5, characterized in that: The plate (1) is provided with a lifting lug plate (4).

7. The steel tray for transporting cathode carbon blocks according to claim 6, characterized in that: At least two of the reinforcing ribs (3-2) are provided on the wide side of the outer frame (2-1). The bottom edge of the lifting lug plate (4) is fixedly mounted on the disc surface (1), and the side wall of the lifting lug plate (4) is fixedly connected to the reinforcing rib plate (3-2).

8. The steel tray for transporting cathode carbon blocks according to claim 1, characterized in that: The thickness of the disk surface (1) gradually increases from the middle to the edge along the long side direction.

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