Working method of the liftable loading and unloading device

Abstract

This invention relates to a working method of a liftable ladle loading and unloading device, belonging to the technical field of casting equipment. The invention includes a ladle transfer system, a transverse trolley for the transfer machine, a lifting platform, ladle translation components, a ladle loading and unloading track, and a transition roller conveyor. The ladle loading and unloading track is located on the right side of the ladle transfer system. Above the ladle loading and unloading track is the transverse trolley for the transfer machine. Above the transverse trolley is the lifting platform. Above the lifting platform is the ladle translation components. A transition roller conveyor is located on the right side of the ladle loading and unloading track. The overall structure of this invention is reasonably designed, safe, and reliable. It allows for the simultaneous transport of a full ladle of molten iron to the right and an empty ladle to the left, avoiding the safety hazards associated with aerial transport and improving production efficiency to meet usage requirements.

Description

Technical Field

[0001] This invention relates to a working method, and more particularly to a working method for a lifting and lowering ladle device during molten iron transfer, which belongs to the field of casting equipment technology. Background Technology

[0002] Molten iron transfer is an essential step in steelmaking or iron product manufacturing. Traditionally, molten iron transfer relies mainly on forklifts and cranes. Using cranes requires workers to operate them, consuming significant manpower, and aerial transport poses considerable safety risks. Forklifts also require manpower, and their stability, accuracy, and production efficiency are relatively low. Furthermore, molten iron loses heat rapidly during transport, easily causing the temperature to fail to meet casting standards during pouring.

[0003] Chinese patent CN215356152U, published on December 31, 2021, discloses a utility model patent entitled "Molten Iron Transfer System". This patent employs a scheme of two rotatable furnace cars. While this technical solution achieves the function of molten iron ladle transfer to a certain extent, the manufacturing cost of the cars is difficult to control. The ladle-moving device of this application, however, achieves the same function while ensuring the molten iron ladle can move forward and backward. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings in the prior art and to provide a working method for a liftable loading and unloading device that has a reasonable structural design, is safe and reliable, reduces equipment costs, is easy to install and operate, has high production efficiency, and meets usage requirements.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: The working method of the liftable ladle loading and unloading device includes the liftable ladle loading and unloading device, which comprises a ladle transfer system, a ladle loading and unloading track, a transfer machine lateral traverse trolley, a lifting platform, a ladle translation component, and a transition roller conveyor. A transition roller conveyor is provided on the right side of the ladle loading and unloading track, and the ladle loading and unloading track is provided on the right side of the ladle transfer system. A transfer machine lateral traverse trolley is provided above the ladle loading and unloading track, and a lifting platform is provided above the transfer machine lateral traverse trolley. The ladle is equipped with a ladle translation component above it. The ladle transfer system includes a transfer track and a ladle transfer trolley. The ladle transfer trolley is set on the transfer track. The specific steps are as follows: the ladle transfer trolley, the ladle ingress and egress track, the transfer machine lateral translation trolley, the lifting platform, and the ladle translation component transfer the molten iron. The lateral translation trolley of the transfer machine has two lifting platforms and ladle translation components. The following will refer to the lifting platform and ladle translation component in front and the lifting platform and ladle translation component in back.

[0006] First, the transverse trolley of the transfer machine is moved to the front, so that the ladle translation component behind it is aligned with the front-to-back direction of the transition roller. Then, the lifting platform behind it is lowered so that the ladle translation component behind it is at the same horizontal height as the transition roller. The empty ladle is then transferred from the transition roller to the ladle translation component behind it, thus achieving the effect of storing the empty ladle.

[0007] Then, the molten iron ladle transfer trolley moves to the point where its front direction coincides with that of the molten iron ladle translation component. The front lifting platform rises so that the front molten iron ladle translation component is at the same horizontal height as the molten iron ladle transfer trolley. The molten iron ladle filled with molten iron is then transferred from the molten iron ladle transfer trolley to the front molten iron ladle translation component. At this time, there is an empty molten iron ladle and a molten iron ladle filled with molten iron on the transverse translation trolley of the transfer machine.

[0008] The lateral traverse trolley of the transfer machine is then moved to the rear, so that the ladle traverse component at the front aligns with the transition roller conveyor in the front-to-back direction. The front lifting platform is lowered, making the front ladle traverse component and the transition roller conveyor at the same horizontal level, thus achieving the rightward transport of the ladle. At the same time, the rear lifting platform is raised, so that the rear ladle traverse component and the ladle transfer trolley are at the same horizontal level. The ladle transfer trolley moves backward, making it align with the rear ladle traverse component in the front-to-back direction. This achieves the simultaneous forward transport of a full ladle and the reverse transport of an empty ladle.

[0009] Preferably, the package loading and unloading track of the present invention includes a light rail, a track limiter, and a drag chain. The tail end of the light rail is equipped with a track limiter, and the head end of the light rail is equipped with a drag chain.

[0010] Preferably, the transverse translation trolley of the transfer machine of the present invention includes wheels, a main frame beam, a frame cross brace, a cylinder connector, a cylinder, a cylinder bracket, and a scraper. The main frame beam is equipped with four wheels in four directions, and the main frame beam is equipped with scraper plates in four directions. The frame cross brace is installed on the main frame beam, and the frame cross brace is equipped with a cylinder connector. The cylinder connector is connected to the cylinder, and the cylinder is mounted on the cylinder bracket.

[0011] Preferably, the lifting platform of the present invention includes a platform base, a scissor mechanism with pulleys, a hydraulic cylinder, a limiter, and a worktable. The limiter is installed on the platform base, the scissor mechanism with pulleys is fixed on the platform base, the scissor mechanism with pulleys is equipped with a hydraulic cylinder for driving, and the upper part of the scissor mechanism with pulleys is connected to the worktable.

[0012] Preferably, the ladle translation component of the present invention includes a roller conveyor main beam, a drive motor, rollers, and a protective plate. The drive motor is mounted on the roller conveyor main beam as a power source, and the drive motor is used to drive the rollers to move the ladle. The protective plate is mounted on the rollers.

[0013] Compared with the prior art, the present invention has the following advantages and effects: (1) The overall structure is reasonably designed and safe and reliable. While the molten iron ladle filled with molten iron is transported to the right, the empty molten iron ladle is transported to the left, which avoids the safety hazards of air transport and improves production efficiency; (2) The function is realized by using a ladle trolley for entering and exiting the ladle. Compared with the method of using several furnace front trolleys, the system reliability is improved and the equipment cost is reduced; (3) The device has a low height, so the depth of the pit can be reduced during the installation process, making it safer for on-site workers to operate. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the molten iron ladle transfer system according to an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the package loading / unloading track and the transverse translation trolley of the transfer machine according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the lifting platform and the ladle translation component according to an embodiment of the present invention.

[0018] In the diagram: 1. Ladle transfer system; 2. Ladle loading and unloading track; 3. Lateral translation trolley of the transfer machine; 4. Lifting platform; 5. Ladle translation component; 6. Transition roller conveyor.

[0019] Molten iron ladle transfer system 1: transfer track 11, molten iron ladle transfer trolley 12;

[0020] Inbound / outbound track 2: light rail 21, track limit 22, drag chain 23;

[0021] 3. Lateral translation trolley of the transfer machine: wheel 31, main beam of the frame 32, cross brace of the frame 33, cylinder connector 34, cylinder 35, cylinder bracket 36, scraper 37.

[0022] Lifting platform 4: platform base 41, scissor mechanism with pulleys 42, hydraulic cylinder 43, limit switch 44, worktable 45;

[0023] 5. Ladle translation component: roller conveyor main beam 51, drive motor 52, roller 53, protective plate 54. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0025] Example

[0026] See Figures 1 to 4 The lifting ladle loading and unloading device in this embodiment includes a ladle transfer system 1, a ladle loading and unloading track 2, a transfer machine lateral translation trolley 3, a lifting platform 4, a ladle translation component 5, and a transition roller conveyor 6. The ladle loading and unloading track 2 is located on the right side of the ladle transfer system 1. The transfer machine lateral translation trolley 3 is located above the ladle loading and unloading track 2. The lifting platform 4 is located above the transfer machine lateral translation trolley 3. The ladle translation component 5 is located above the lifting platform 4. The transition roller conveyor 6 is located on the right side of the ladle loading and unloading track 2.

[0027] This embodiment utilizes the lifting platform 4 to realize the function of transporting molten iron ladles with roller conveyors of different heights. Through the lateral movement of the two lifting platforms 4 and the transverse translation trolley 3 of the transfer machine, bidirectional transport of molten iron ladles can be achieved without interference. In addition, the recessed main beam of the frame 32, the scissor mechanism 43 with pulleys, and the use of an ultra-thin platform base 41 and workbench effectively reduce the overall height of the equipment. The strength of the lifting platform 4 is ensured by the reasonable setting of the positions of the frame cross brace 33 and the roller conveyor main beam 51.

[0028] like Figure 2 As shown, the molten iron ladle transfer system 1 in this embodiment includes a transfer track 11 and a molten iron ladle transfer trolley 12. The molten iron ladle transfer trolley 12 is located above the transfer track 11. The internal structure of the molten iron ladle transfer trolley 12 is complex and inevitably has a certain height. The molten iron transfer system 1 occupies a large area and is difficult to bury in a pit. Therefore, there is a certain height difference between the roller conveyor in the molten iron transfer system 1 and the conventional roller conveyor.

[0029] like Figure 3 As shown, the package loading and unloading track 2 in this embodiment includes a light rail 21, a track limiter 22, and a drag chain 23. The tail end of the light rail 21 is equipped with the track limiter 22; the head end of the light rail 21 is equipped with the drag chain 23; the light rail 21 is buried underground, which reduces the overall height of the equipment and can effectively reduce the depth of the pit; the track limiter 22 is used to prevent the lateral translation trolley 3 of the transfer machine from rushing out of the light rail 21 under the action of inertia; the drag chain is used to protect the track.

[0030] like Figure 3As shown, the transverse trolley 3 of the transfer machine in this embodiment includes wheels 31, a main frame beam 32, a frame cross brace 33, a cylinder connector 34, a cylinder 35, a cylinder bracket 36, and a scraper plate 37. Four wheels 31 are mounted on the main frame beam 32 in four directions; scraper plates 37 are mounted on the main frame beam 32 in four directions; the frame cross brace 33 is mounted on the main frame beam 32, and a cylinder connector 34 is mounted on the frame cross brace 33. The cylinder connector 34 is connected to the cylinder 35, the cylinder 35 is mounted on the cylinder bracket 36, and the cylinder bracket 37 is mounted on the light rail 21; the scraper plate 37 is used to scrape away the slag generated by splashing molten iron on the light rail 21, preventing the transverse trolley 3 from derailing; the main frame beam 33 adopts a concave design, which can reduce the height of the device while ensuring strength; the frame cross brace 33 faces upwards directly towards the platform base 41, and the frame cross brace 33 improves its strength by arranging reinforcing ribs.

[0031] like Figure 4 As shown, the lifting platform 4 in this embodiment includes a platform base 41, a scissor lift mechanism 42 with pulleys, a hydraulic cylinder 43, a limiter 44, and a worktable 45. The platform base 41 is equipped with a limiter 44; the platform base 42 is equipped with a scissor lift mechanism 42 with pulleys, and the scissor lift mechanism 42 is equipped with a hydraulic cylinder 43 for driving; the scissor lift mechanism 42 with pulleys is connected to the worktable 45 above; the platform base 41 adopts an ultra-thin structure to reduce the height of the device and uses the frame cross brace 35 to ensure structural strength; the worktable 42 adopts an ultra-thin structure to reduce the height of the device and uses the roller conveyor main beam 51 to ensure structural strength; the limiter 44 is used to prevent the scissor lift structure from suffering irreversible damage.

[0032] like Figure 4 As shown, the ladle translation component 5 in this embodiment includes a roller main beam 51, a drive motor 52, a roller 53, and a protective plate 54. The drive motor 52 is mounted on the roller main beam 51 as a power source; the drive motor 52 is used to drive the roller 53 to move the ladle; the protective plate 54 is mounted on the roller 53; the protective plate 54 is used to prevent water splashing and damage.

[0033] The working principle and workflow of the liftable ladle loading and unloading device in this embodiment are as follows: The molten iron ladle transfer trolley 12, the ladle loading and unloading track 2, the transverse translation trolley 3 of the transfer machine, the lifting platform 4, and the ladle translation component 5 transfer the molten iron. The transverse translation trolley 3 of the transfer machine has two lifting platforms 4 and ladle translation components 5, which will be referred to as the front lifting platform 4 and ladle translation component 5 and the rear lifting platform 4 and ladle translation component 5 respectively. After using the ladle loading and unloading device, there is no need to carry out aerial transportation operations, which avoids the safety hazards of aerial transportation and improves production efficiency.

[0034] First, the transverse trolley 3 of the transfer machine is moved to the front, so that the ladle translation components 5 and 6 behind it are aligned in the front-to-back direction. Then, the lifting platform 4 behind it is lowered so that the ladle translation components 5 and 6 are at the same horizontal height. The empty ladle is then transferred from 6 to the ladle translation component 5 behind it, thus achieving the effect of storing the empty ladle.

[0035] Subsequently, the molten iron ladle transfer trolley 12 moves to the point where it overlaps with the front molten iron ladle translation component 5 in the front direction. The front lifting platform 4 rises so that the front molten iron ladle translation component 5 is at the same horizontal height as the molten iron ladle transfer trolley 12. The molten iron ladle filled with molten iron is transferred from the molten iron ladle transfer trolley 12 to the front molten iron ladle translation component 5. At this time, there is an empty molten iron ladle and a molten iron ladle filled with molten iron on the transverse translation trolley 3 of the transfer machine.

[0036] Then, the transverse trolley 3 of the transfer machine is moved to the rear, so that the front ladle translation components 5 and 6 are aligned in the front-to-back direction. The front lifting platform 4 is lowered so that the front ladle translation components 5 and 6 are at the same horizontal height, realizing the rightward transport of the ladle. At the same time, the rear lifting platform 4 is raised so that the rear ladle translation component 5 and the ladle transfer trolley 12 are at the same horizontal height. The ladle transfer trolley 12 is moved backward so that the ladle transfer trolley 12 and the rear ladle translation component 5 are aligned in the front-to-back direction. This realizes that while the ladle is fully loaded, it is transported forward, and the empty ladle is transported in the opposite direction.

[0037] This embodiment can realize the function of transporting molten iron ladles with roller conveyors of different heights, and can realize bidirectional transport of molten iron ladles without interference. In addition, the equipment is characterized by its low profile, which ultimately eliminates the need for aerial transport operations and avoids the safety hazards associated with aerial transport.

[0038] Based on the above description, those skilled in the art are already able to implement it.

[0039] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their parts and components. The above description is merely illustrative of the structure of the present invention. All equivalent or simple variations made based on the structure, features, and principles described in this patent concept are included within the protection scope of this patent. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in these claims, all of which should fall within the protection scope of this invention.

Claims

1. A method for operating a liftable ladle loading and unloading device, comprising a liftable ladle loading and unloading device, the liftable ladle loading and unloading device comprising a ladle transfer system (1), a ladle loading and unloading track (2), a transfer machine transverse translation trolley (3), a lifting platform (4), a ladle translation component (5), and a transition roller conveyor (6), wherein the ladle loading and unloading track (2) is provided on the right side, the ladle loading and unloading track (2) is provided on the right side of the ladle transfer system (1), the transfer machine transverse translation trolley (3) is provided above the ladle loading and unloading track (2), the lifting platform (4) is provided above the transfer machine transverse translation trolley (3), and the ladle translation component (5) is provided above the lifting platform (4), the ladle transfer system (1) comprises a transfer track (11) and a ladle transfer trolley (12), the ladle transfer trolley (12) being disposed on the transfer track (11), characterized in that: The specific steps are as follows: the molten iron ladle transfer trolley (12), the ladle in and out track (2), the transfer machine horizontal translation trolley (3), the lifting platform (4), and the molten iron ladle translation component (5) transfer the molten iron. Among them, the transfer machine horizontal translation trolley (3) has two lifting platforms (4) and molten iron ladle translation components (5). The following description will use the front lifting platform (4), the ladle translation component (5) and the rear lifting platform (4), the ladle translation component (5); First, move the transverse trolley (3) of the transfer machine to the front so that the ladle translation component (5) and the transition roller (6) are aligned in the front-to-back direction. Then, lower the lifting platform (4) so ​​that the ladle translation component (5) and the transition roller (6) are at the same horizontal height. The empty ladle is then transferred from the transition roller (6) to the ladle translation component (5), thus achieving the effect of storing the empty ladle. Then, the ladle transfer trolley (12) moves to the point where it overlaps with the ladle translation component (5) in the front direction. The lifting platform (4) in front rises so that the ladle translation component (5) in front reaches the same horizontal height as the ladle transfer trolley (12). The ladle filled with molten iron is transferred from the ladle transfer trolley (12) to the ladle translation component (5) in front. At this time, there is an empty ladle and a ladle filled with molten iron on the transverse translation trolley (3) of the transfer machine. Then, the transverse trolley (3) of the transfer machine is moved to the rear, so that the front ladle translation component (5) and the transition roller conveyor (6) are aligned in the front-to-back direction. The front lifting platform (4) is lowered, so that the front ladle translation component (5) and the transition roller conveyor (6) are at the same horizontal height, realizing the rightward transport of the ladle. At the same time, the rear lifting platform (4) is raised, so that the rear ladle translation component (5) and the ladle transfer trolley (12) are at the same horizontal height, realizing the rightward transport of the ladle. The trolley (12) moves backward, causing the ladle transfer trolley (12) to coincide with the ladle translation component (5) behind it in the front-to-back direction; this achieves simultaneous forward transport of a full ladle and reverse transport of an empty ladle; the ladle-moving track (2) includes a light rail (21), a track limiter (22), and a drag chain (23), with the track limiter (22) at the tail end of the light rail (21) and the drag chain (23) at the head end; the transverse translation trolley (3) of the transfer machine includes wheels (31). The frame consists of a main beam (32), a cross brace (33), a cylinder connector (34), a cylinder (35), a cylinder bracket (36), and a scraper (37). Four wheels (31) are mounted on the main beam (32) in four directions. Scrapers (37) are mounted on the main beam (32) in four directions. The cross brace (33) is mounted on the main beam (32). A cylinder connector (34) is mounted on the cross brace (33). The cylinder connector (34) is connected to the cylinder (35). The lifting platform (4) is mounted on the cylinder bracket (36); the lifting platform (4) includes a platform base (41), a scissor mechanism (42) with pulleys, a hydraulic cylinder (43), a limiter (44) and a worktable (45). The platform base (41) is equipped with a limiter (44), the scissor mechanism (42) with pulleys is fixed on the platform base (41), the scissor mechanism (42) with pulleys is equipped with a hydraulic cylinder (43) for driving, and the scissor mechanism (42) with pulleys is connected to the worktable (45) above.

2. The operating method of the liftable bag-carrying / retracting device according to claim 1, characterized in that: The ladle translation component (5) includes a roller main beam (51), a drive motor (52), a roller (53) and a protective plate (54). The roller main beam (51) is equipped with a drive motor (52) as a power source. The drive motor (52) is used to drive the roller (53) to move the ladle. The roller (53) is equipped with a protective plate (54).

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