Deepening structure for aluminum slab ingot casting well

Abstract

The utility model relates to aluminium big slab ingot casting well deepening structure, including anchor line, big steel cylinder, protection steel cylinder, concrete cushion, protection cylinder and flange base, the both sides of casting well set anchor line, the bottom center of casting well sets up big steel cylinder, concrete cushion and protection cylinder are set up in big steel cylinder, and the concrete layer is poured between the protection cylinder circumferential side and big steel cylinder inner wall, and the flange base for installing hydraulic cylinder is anchored in the top of protection cylinder, protection steel cylinder is coaxially arranged in big steel cylinder, and the top end of protection steel cylinder is close to flange base lower plane, and protection steel cylinder vertically downward passes through protection cylinder and concrete cushion and then extends out of big steel cylinder, the ground on one side of the top end of casting well is built to have the pit, and the auxiliary turnover device and steel backing plate are set up in the pit, and the straight up slab ingot is laid to the steel backing plate by auxiliary turnover device, the utility model discloses can increase the structural strength of casting well, and gradually lays down the straight up slab ingot again, and then hoists and transports to the next process, is applicable to the casting operation of bigger specification slab ingot.

Description

Technical Field

[0001] This utility model relates to the field of plate ingot casting technology, and in particular to a deep well structure for casting large aluminum plate ingots. Background Technology

[0002] Aluminum ingots can be manufactured using deep-well casting, a casting method in which molten metal is poured through a deep-well mold. Specifically, under certain process conditions, molten aluminum is fed through a trough into a mold plate set above the casting well. After passing through the water-cooled crystallizer of the mold plate, the molten aluminum is stretched vertically downwards through an ingot guide plate support below the mold plate to the bottom of the casting well, forming an ingot of a certain shape and length. The formed ingot remains in the casting well and is then lifted out of the casting well by a crane.

[0003] The equipment used in deep well casting mainly includes a casting well, a casting machine hydraulic cylinder, and a dummy ingot tray support. The casting well is a shaft constructed of reinforced concrete below ground level. The casting machine hydraulic cylinder is vertically installed and fixed inside the casting well. The dummy ingot tray support is mounted on the piston rod of the hydraulic cylinder, and the hydraulic cylinder controls the vertical movement of the dummy ingot tray within the casting well. Figure 1 and Figure 2 As shown.

[0004] After casting, the aluminum ingot is lifted by an overhead crane in the workshop using a lifting device. The ingot is then completely removed from the casting well and transferred to the next process, completing the entire lifting process. Typically, to ensure the ingot is smoothly lifted out of the casting well, the overhead crane is designed to be taller than the ingot itself.

[0005] The hydraulic cylinders currently in use have a stroke of 6800mm, which allows for the production of aluminum ingots with a maximum height of 6700mm. However, to produce larger ingots with a height of 9500mm, production needs require additional capacity. Due to limitations in factory height and overhead cranes, the cranes cannot lift the formed aluminum ingots completely from the casting well. Increasing the factory height would achieve this, but would increase modification costs and disrupt the production of other equipment within the workshop.

[0006] Furthermore, as the height of the ingot increases, its overall weight also increases, necessitating appropriate modifications to the original casting well structure to enhance its strength and enable it to effectively accommodate the casting of larger aluminum ingots. Therefore, a deeper casting well structure for large aluminum ingots is proposed. Summary of the Invention

[0007] To address the problem that existing deep-well casting facilities are difficult to apply to casting larger-sized slab ingots, this utility model provides a deepening structure for casting large aluminum slab ingots. The structure of the casting well is optimized and its strength is improved. At the same time, a pit is excavated on one side of the casting well, and the large-sized slab ingots are first placed into the pit and then transported to the next process by a crane.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] The deep structure of the aluminum large plate ingot casting well includes anchor cables, a large steel cylinder, a protective steel cylinder, a concrete pad, a protective casing, and a flange base. The anchor cables are installed on both sides of the casting well to prevent the casting well from settling. The large steel cylinder is installed at the center of the bottom of the casting well and extends vertically downward to the depth of the ground, which improves the bearing capacity and stability of the foundation.

[0010] The large steel cylinder is equipped with a concrete pad and a protective casing. The protective casing and the concrete pad are arranged vertically. A concrete layer is poured between the periphery of the protective casing and the inner wall of the large steel cylinder to ensure the stability of the protective casing. The top of the protective casing is anchored with the flange base for installing the hydraulic cylinder, which facilitates the connection and installation of the flange base and the hydraulic cylinder flange.

[0011] The protective steel cylinder is coaxially arranged inside the large steel cylinder to facilitate the protection of the hydraulic cylinder. The top of the protective steel cylinder is close to the lower plane of the flange base. The protective steel cylinder extends vertically downward through the protective casing and the concrete pad layer and then out of the large steel cylinder. Grouting material is filled between the flange base, the protective casing and the top of the protective steel cylinder to ensure the stability of the protective steel cylinder.

[0012] A reinforced concrete pit is constructed on the ground on one side of the top of the casting well to facilitate the flat placement of the ingots. An auxiliary turning device and a steel pad are installed in the pit. The auxiliary turning device flattens the upright ingots onto the steel pad.

[0013] Furthermore, the large steel cylinder is a cylindrical body with openings at both the top and bottom. The height of the large steel cylinder is less than that of the protective steel cylinder, and the diameter of the large steel cylinder is greater than that of the protective steel cylinder. The protective steel cylinder is a cylindrical body with an opening at the top, and a water plug is threadedly connected to the lower end of the protective steel cylinder to facilitate the opening and closing of the lower end of the protective cylinder.

[0014] Furthermore, the large steel cylinder is fixed to the casting well with reinforcing bars, which improves the reliability of the large steel cylinder. The height of the concrete pad layer is less than the height of the protective cylinder. The protective cylinder is a cylindrical body with openings at the top and bottom. The inner diameter of the protective cylinder is larger than the outer diameter of the protective steel cylinder. The grouting material is arranged between the inner wall of the protective cylinder and the outer wall of the protective steel cylinder.

[0015] There is a vertical gap between the flange base and the top of the casing, and the grouting material is arranged between the flange base and the top of the casing to ensure the flange base is fixed.

[0016] Furthermore, a stabilizing outer ring is provided at the top and middle of the casing, and multiple pre-embedded bolts are provided on the outer circumferential side of the casing. Each pre-embedded bolt is vertically inserted between two stabilizing outer rings, and the concrete layer is arranged between the stabilizing outer rings and the pre-embedded bolts.

[0017] The pre-embedded bolts pass upward through the stabilizing outer ring and are connected and fixed to the flange base. Multiple adjusting pads are provided between the stabilizing outer ring and the flange base to adjust the levelness of the flange base.

[0018] Furthermore, the pit is arranged horizontally, and the auxiliary tilting device includes a support, a tilting rod connected to the support, and a tilting seat set on the tilting rod. The tilting seat is bent into an L-shape to facilitate receiving the plate ingot.

[0019] The beneficial effects of this utility model through the above technical solution are:

[0020] This utility model features a rational structural design. Through the interaction of the large steel cylinder, concrete pad, casing, concrete layer, protective steel cylinder, and grouting material, it enhances the structural strength of the casting well foundation, ensuring the reliability of the casting well application. Simultaneously, anchor cables are arranged on both sides of the casting well to effectively prevent settlement, enabling it to accommodate casting operations of larger slabs and ingots.

[0021] This invention modifies and reinforces the casting well, and arranges a horizontal pit on one side of the casting well, with an auxiliary tilting device inside the pit. After casting, the ingot is lifted by a crane in conjunction with a lifting device. After being lifted, the ingot can be moved horizontally into the pit. Once the bottom of the ingot contacts the auxiliary tilting device, the lifting device is controlled to move horizontally and descend simultaneously, thereby placing the ingot into the pit, which facilitates the lifting and transportation of larger ingots.

[0022] This invention employs a combination of vertical lifting and horizontal lifting after being lowered, solving the problem of casting and transporting larger-sized ingots due to the existing workshop layout, and reducing the cost of increasing factory height. Only modifications to the existing deep-well casting facilities are required; no large-scale construction is needed, and it does not affect the normal operation of other equipment in the workshop. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an existing deep well casting structure. In the diagram, A represents the highest position of the ingot tray support, and B represents the lowest position of the ingot tray support.

[0024] Figure 2 yes Figure 1 Enlarged schematic diagram of the casting well.

[0025] Figure 3 This is the front view of the deepening structure for casting aluminum large plate ingots according to this utility model.

[0026] Figure 4This is a schematic diagram of the casting well with a deepened structure for aluminum large plate ingot casting wells according to this utility model.

[0027] Figure 5 This is a schematic diagram of the inner and outer arrangement of the large steel cylinder and protective steel cylinder in the deep structure of the aluminum large plate ingot casting well of this utility model.

[0028] Figure 6 This is a schematic diagram showing the upper and lower arrangement of the casing and concrete pad layer in the deep structure of the aluminum large plate ingot casting well of this utility model.

[0029] Figure 7 This is a schematic diagram of the pit for the deepening structure of the aluminum large plate ingot casting well of this utility model.

[0030] Figure 8 This is a schematic diagram illustrating the application process of the pit in the deep well structure for casting aluminum large plate ingots according to this utility model.

[0031] Figure 9 This is one of the construction flowcharts for the deep well construction structure of aluminum large plate ingot casting in this utility model.

[0032] Figure 10 This is the second construction flowchart of the aluminum large plate ingot casting well deepening structure of this utility model.

[0033] The attached diagram is labeled as follows: 1 Casting well, 2 Hydraulic cylinder, 3 Ingot tray support, 4 Crane, 5 Lifting tool, 6 Anchor cable, 7 Large steel cylinder, 8 Protective steel cylinder, 9 Concrete pad, 10 Casing, 11 Flange base, 12 Stabilizing outer ring, 13 Embedded bolt, 14 Concrete layer, 15 Adjusting pad, 16 Water plug, 17 Grouting material, 18 Pit, 19 Auxiliary tilting device, 191 Support, 192 Tilting rod, 193 Tilting seat, 20 Steel pad, 21 Deep well hole. Detailed Implementation

[0034] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0035] like Figures 3-10 As shown, the aluminum large ingot casting well deepening structure is used to deepen and reinforce casting well 1, improve its own strength, and adapt to the casting operation of larger ingots. The casting well 1 deepening structure includes anchor cable 6, large steel cylinder 7, protective steel cylinder 8, concrete pad layer 9, protective cylinder 10, and flange base 11.

[0036] Casting well 1 is an existing facility, constructed of reinforced concrete, and has a U-shaped cross-section. Anchor cables 6 are installed on both sides of casting well 1, with multiple anchor cables 6 arranged vertically at intervals on each side. The anchor cables 6 help prevent the casting well 1 from settling.

[0037] A large steel cylinder 7 is installed at the center of the bottom of the casting well 1. The large steel cylinder 7 is a cylindrical body with openings at the top and bottom. After passing through the bottom of the casting well 1, the large steel cylinder 7 extends vertically downward to the depths of the ground. In order to fix the large steel cylinder 7, holes are drilled around the large steel cylinder 7 and steel bars are planted to encourage the inserted steel bars to be inserted to the bottom of the casting well 1, thereby further ensuring the stability of the large steel cylinder 7.

[0038] The silt and soil inside the large steel cylinder 7 are excavated. A concrete foundation layer 9 and a protective casing 10 are then installed inside the large steel cylinder 7, with the protective casing 10 arranged vertically above the concrete foundation layer 9. First, concrete is poured to form the concrete foundation layer 9, and then the protective casing 10 is installed on top of the concrete foundation layer 9. The protective casing 10 is coaxially arranged inside the large steel cylinder 7 and is a cylindrical body with openings at the top and bottom. The height of the concrete foundation layer 9 is less than the height of the protective casing 10.

[0039] When the casing 10 is fixed, a concrete layer 14 is poured between the periphery of the casing 10 and the inner wall of the large steel cylinder 7 to ensure the relative fixation of the casing 10 and the large steel cylinder 7. The top of the casing 10 is anchored with a flange base 11 for installing the hydraulic cylinder 2. The flange base 11 is a circular ring. When the flange base 11 is installed, a stabilizing outer ring 12 is provided at the top and middle of the casing 10, so that there are two stabilizing outer rings 12.

[0040] Meanwhile, multiple pre-embedded bolts 13 are provided circumferentially on the outer side of the casing 10, and the pre-embedded bolts 13 are bent into an "L" shape. Each pre-embedded bolt 13 is vertically inserted between two stabilizing outer rings 12 and is connected and fixed to the stabilizing outer rings 12. A concrete layer 14 is arranged between the stabilizing outer rings 12 and the pre-embedded bolts 13. The concrete is poured between the casing 10 and the large steel cylinder 7, and then the concrete naturally fills the space between the stabilizing outer rings 12 and the pre-embedded bolts 13, ensuring that the casing 10, the stabilizing outer rings 12 and the pre-embedded bolts 13 can be effectively fixed.

[0041] Note that the pre-embedded bolts 13 pass upward through the stabilizing outer ring 12 and are connected and fixed to the flange base 11. That is, each pre-embedded bolt 13 has multiple nuts at the top. After the pre-embedded bolts 13 pass through the flange base 11, the nuts are used to fix the flange base 11, ensuring that the flange base 11 and the large steel cylinder 7 are arranged concentrically.

[0042] When the flange base 11 is installed, there is a gap between the flange base 11 and the top of the casing 10. In order to adjust the level of the flange base 11, multiple adjusting shims 15 are provided between the stabilizing outer ring 12 and the flange base 11. The adjusting shims 15 are existing technology and can be the adjusting shims 15 iron commonly used in machine tool installation.

[0043] A protective steel cylinder 8 is coaxially installed inside the large steel cylinder 7. The protective steel cylinder 8 is a cylindrical body with an open top. The height of the large steel cylinder 7 is less than that of the protective steel cylinder 8, and the diameter of the large steel cylinder 7 is greater than that of the protective steel cylinder 8. The inner diameter of the protective sleeve 10 is greater than the outer diameter of the protective steel cylinder 8. The top of the protective steel cylinder 8 is close to the lower plane of the flange base 11. The protective steel cylinder 8 extends vertically downward through the protective sleeve 10 and the concrete pad 9 and then out of the large steel cylinder 7. The lower end of the protective steel cylinder 8 has an opening, and a water plug 16 is threaded into the opening to control whether the lower end of the protective steel cylinder 8 is sealed.

[0044] To improve the reliability of the installation of the protective steel cylinder 8, grout 17 is filled between the flange base 11, the protective cylinder 10, and the top of the protective steel cylinder 8. Specifically, grout 17 is arranged between the inner wall of the protective cylinder 10 and the outer wall of the protective steel cylinder 8, and grout 17 is also arranged between the flange base 11 and the top of the protective cylinder 10. The grout 17 fills the area around the adjusting pad 15, and the two are cast into one piece.

[0045] Based on the structural modification and reinforcement of casting well 1, a reinforced concrete pit 18 was constructed on the ground on one side of the top of casting well 1. The pit 18 is horizontally arranged and is a downwardly recessed rectangular pit. The upper surface of the pit 18 is flush with the ground surface. Figure 7 and Figure 8 As shown. At the same time, an auxiliary tilting device 19 and a steel pad 20 are installed in the pit 18. The auxiliary tilting device 19 is used to assist in tilting the ingot and can work with the crane 4 to place the upright ingot flat on the steel pad 20.

[0046] The auxiliary tilting device 19 includes a support 191, a tilting rod 192 connected to the support 191, and a tilting seat 193 set on the tilting rod 192. There are two supports 191, and the tilting rod 192 is connected between the two supports 191. The tilting seat 193 is bent into an L-shape, and the tilting rod 192 drives the tilting seat 193 to rotate together. When the ingot is moved in an upright state onto the tilting seat 193 and the bottom of the ingot sits on the tilting seat 193, the lifting device 5 is moved horizontally and lowered at the same time to gradually tilt the ingot onto the steel pad 20.

[0047] The principle of this utility model is as follows: The original casting equipment, such as the hydraulic cylinder 2, is dismantled, and anchor cables 6 are driven into both sides of the casting well 1 to prevent settlement. A large steel cylinder 7 is fabricated and installed in the center of the casting well 1. A shield press is used to lower the large steel cylinder 7 into the ground. Holes are drilled around the large steel cylinder 7 and reinforcing bars are installed to ensure a secure connection between it and the casting well 1. Figure 9 As shown in Figure a.

[0048] The concrete of the cast well 1 inside the large steel cylinder 7 was broken up, and silt, sand, gravel, and earth were excavated to the design elevation. Then, special concrete was poured to form a concrete foundation 9, such as... Figure 9As shown in Figure b, after the concrete cushion layer 9 has solidified, the anchor bolt assembly is installed. This anchor bolt assembly consists of a casing 10, a stabilizing outer ring 12, and pre-embedded bolts 13 connected as a single unit. Special concrete is poured around the outer periphery of the anchor bolt assembly to form a concrete layer 14, ensuring the fixation of the casing 10 and the pre-embedded bolts 13. Figure 9 As shown in c.

[0049] At the center of the large steel cylinder 7, a deep well hole 21 is created using a heavy hammer method. The diameter of the deep well hole 21 must be slightly larger than that of the protective steel cylinder 8, and its depth must also be greater than that of the protective steel cylinder 8, ensuring that the protective steel cylinder 8 can be installed inside the deep well hole 21. Figure 10 As shown in Figure a. After applying anti-corrosion material to the surface of the protective cylinder, unscrew the water plug 16 and hoist the protective steel cylinder 8 into the deep well hole 21. During the hoisting process, mud and water in the deep well hole 21 may enter the protective cylinder. After hoisting is completed and the position is corrected, high-strength grout 17 is poured into the gap between the protective cylinder and the deep well hole 21, such as... Figure 10 As shown in b.

[0050] Use a tool to screw the water-blocking plug 16 into the bottom of the protective cylinder to prevent mud and water from entering the protective steel cylinder 8. Then clean the mud and water from inside the protective steel cylinder 8. Figure 10 As shown in Figure c. Install the flange base 11, and use the adjusting shim 15 to precisely adjust the level of the flange base 11. Tighten the nuts on the pre-embedded bolts 13. After verifying that everything is correct, pour in high-strength grout 17, ensuring that the space between the flange base 11 and the top of the casing 10, and between the casing 10 and the protective steel cylinder 8, is filled with grout 17. Note that the grout 17 should not exceed the upper plane of the flange base 11, thereby achieving the deepening and reinforcement of the casting well 1.

[0051] Then, hydraulic cylinder 2 and other equipment can be installed on the flange base 11. Hydraulic cylinder 2 is placed inside the protective steel cylinder 8, such as... Figure 10 As shown in d. At the same time, a horizontal pit 18 is made for vertically laying the ingot, ensuring that the pit 18 is connected to the upper side of the casting well 1, and an auxiliary tilting device 19 and a steel pad 20 are installed in the pit 18.

[0052] After the ingot casting is completed, the overhead crane 4, in conjunction with the lifting device 5, lifts the ingot. After lifting it to a certain height, the lifting device 5 moves horizontally out of the casting well 1 and into the pit 18. The lifting device 5 rotates, causing the ingot to rotate 90°. The ingot moves horizontally and contacts the tilting seat 193, and the ingot sits on the tilting seat 193. The lifting device 5 continues to move horizontally and descend, causing the ingot to rotate around the tilting rod 192 as the center of rotation. Thus, the ingot rotates from an upright state to a flat state, and finally the ingot is placed flat on the steel pad 20. The whole process is a process of laying down from vertical to horizontal. Then, the overhead crane 4 lifts the flat ingot to the next process, thereby realizing the casting of larger-sized ingots.

[0053] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. Deepening structure of an aluminum slab ingot casting pit, characterized by, Includes anchor cable (6), large steel cylinder (7), protective steel cylinder (8), concrete cushion layer (9), protective casing (10) and flange base (11). The anchor cable (6) is installed on both sides of the casting well (1), and the large steel cylinder (7) is installed at the center of the bottom of the casting well (1). The large steel cylinder (7) extends vertically downward to the depth of the underground. The concrete cushion layer (9) and the protective casing (10) are provided inside the large steel cylinder (7). The protective casing (10) and the concrete cushion layer (9) are arranged vertically. A concrete layer (14) is poured between the periphery of the protective casing (10) and the inner wall of the large steel cylinder (7). The top of the protective casing (10) is anchored to the flange base (11) for installing the hydraulic cylinder (2). The protective steel cylinder (8) is coaxially arranged inside the large steel cylinder (7). The top of the protective steel cylinder (8) is close to the lower plane of the flange base (11). The protective steel cylinder (8) extends vertically downward through the protective cylinder (10) and the concrete pad (9) and then extends out of the large steel cylinder (7). Grouting material (17) is filled between the flange base (11), the protective cylinder (10) and the top of the protective steel cylinder (8). A steel-concrete structure pit (18) is built on the ground on one side of the top of the casting well (1). An auxiliary turning device (19) and a steel pad (20) are installed in the pit (18). The auxiliary turning device (19) lays the upright ingot flat on the steel pad (20).

2. The aluminum slab ingot casting pit deepening structure according to claim 1, characterized by, The large steel cylinder (7) is a cylindrical body with openings at the top and bottom. The height of the large steel cylinder (7) is less than that of the protective steel cylinder (8), and the diameter of the large steel cylinder (7) is greater than that of the protective steel cylinder (8). The protective steel cylinder (8) is a cylindrical body with an opening at the top, and a water plug (16) is threaded to the lower end of the protective steel cylinder (8).

3. The aluminum slab ingot casting pit deepening structure according to claim 1, characterized by, The large steel cylinder (7) is fixed to the casting well (1) by rebar. The height of the concrete cushion layer (9) is less than the height of the protective cylinder (10). The protective cylinder (10) is a cylindrical body with openings at the top and bottom. The inner diameter of the protective cylinder (10) is greater than the outer diameter of the protective steel cylinder (8). The grouting material (17) is arranged between the inner wall of the protective cylinder (10) and the outer wall of the protective steel cylinder (8). There is a gap between the top of the flange base (11) and the top of the casing (10), and the grouting material (17) is arranged between the top of the flange base (11) and the top of the casing (10).

4. The deep-casting structure for aluminum large plate ingots according to claim 3, characterized in that, The top and middle of the casing (10) are provided with a stabilizing outer ring (12), and multiple pre-embedded bolts (13) are provided on the outer side of the casing (10). Each pre-embedded bolt (13) is vertically inserted between two stabilizing outer rings (12), and the concrete layer (14) is arranged between the stabilizing outer rings (12) and the pre-embedded bolts (13). The pre-embedded bolt (13) passes upward through the stabilizing outer ring (12) and is connected and fixed to the flange base (11). Multiple adjusting pads (15) are provided between the stabilizing outer ring (12) and the flange base (11) to adjust the level of the flange base (11).

5. The deep-casting structure for aluminum large plate ingots according to claim 1, characterized in that, The pit (18) is arranged horizontally, and the auxiliary tilting device (19) includes a support (191), a tilting rod (192) connected to the support (191), and a tilting seat (193) set on the tilting rod (192). The tilting seat (193) is bent into an L shape.

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