Capping device for molten iron tank car

Abstract

The invention provides a molten iron tank car capping device, and relates to the technical field of molten iron tank cars, the molten iron tank car is used for placing a molten iron tank, the molten iron tank car is provided with two capping mechanisms, and the two capping mechanisms are symmetrically arranged on the left side and the right side of the molten iron tank; the capping mechanism comprises a cover plate and two supporting rods, the supporting rods are hinged to the molten iron tank car, first rotating assemblies are arranged between the supporting rods and the molten iron tank car, telescopic assemblies are arranged on the supporting rods, the cover plate is hinged to the two telescopic assemblies, and first dismounting assemblies are arranged between the cover plate and the telescopic assemblies. A second rotating assembly is arranged between the two telescopic assemblies, a second dismounting assembly is arranged between the cover plate and the second rotating assembly, and a stop block is arranged on the cover plate; according to the device, covering and uncovering work of the hot-metal bottle can be achieved, the device can be stored when not in use, space is saved, production safety is improved, the cover plate can be rapidly and independently disassembled and assembled, the maintenance difficulty is lowered, and use convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of molten iron tank cars, and in particular to a covering device for a molten iron tank car. Background Art

[0002] At present, the transportation of molten iron in steel production is shifting to a more energy-saving "one-tank-to-the-end" method, that is, the molten iron from the blast furnace is directly transported to the steelmaking workshop in molten iron tanks. However, the supply of molten iron is intermittent, and the transportation and waiting time are long, resulting in the molten iron dissipating heat and cooling down during the waiting period, especially in rainy and snowy days. The loss is greater. Most domestic steel companies use open molten iron tanks for long-distance open-air transportation. Due to the long distance between the blast furnace and the steelmaking area and the long waiting time, the molten iron tank contacts the air to dissipate heat, which increases energy consumption, reduces the life of the iron lining, and increases costs and safety risks. In addition, the dispatching time of molten iron tank trucks is long, which is particularly significant in old steel mills. Therefore, in order to reduce the heat loss of molten iron transportation, it becomes necessary to cover the molten iron tank mouth.

[0003] Currently, most of the capping devices on molten iron tank trucks have relatively simple functions, limited to basic opening and closing operations, and lack a safety protection mechanism to prevent potential safety hazards. For example, when the device is not in use, the molten iron tank may tip over due to accidental touch. At the same time, the existing capping devices still occupy a large space when idle. In addition, the existing molten iron tank covers and their support frames are mostly fixed by welding. Once the molten iron tank cover needs to be repaired or replaced, the entire molten iron tank cover and its support frame must be disassembled together, which not only increases the difficulty of maintenance, but also reduces the maintenance efficiency, bringing many inconveniences to actual operations. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a covering device for a molten iron tank car, which can solve the problem that most of the current covering devices for molten iron tank cars have relatively simple functions and are limited to basic opening and closing operations, and lack a safety protection mechanism to prevent potential safety hazards. For example, when the device is not in use, the molten iron tank may tip over due to accidental touch. At the same time, the existing covering device still occupies a large space when idle. In addition, the existing molten iron tank cover and its supporting frame are mostly fixed by welding. Once the molten iron tank cover needs to be repaired or replaced, the entire molten iron tank cover and its supporting frame must be disassembled together, which not only increases the difficulty of maintenance, but also reduces the maintenance efficiency, and brings many inconvenient technical problems to actual operation.

[0005] The embodiment of the present application provides a capping device for a molten iron ladle, comprising a molten iron ladle for placing a molten iron ladle, wherein the molten iron ladle is provided with two capping mechanisms, and the two capping mechanisms are symmetrically arranged on the left and right sides of the molten iron ladle;

[0006] The covering mechanism includes a cover plate and two support rods, the support rods are hingedly arranged on the molten iron ladle car, a first rotating assembly is arranged between the support rods and the molten iron ladle car, a telescopic assembly is arranged on the support rods, the cover plate is hingedly arranged between the two telescopic assemblies, a first disassembly assembly is arranged between the cover plate and the telescopic assembly, a second rotating assembly is arranged between the two telescopic assemblies, a second disassembly assembly is arranged between the cover plate and the second rotating assembly, and a blocking block is arranged on the cover plate.

[0007] Wherein, the first rotating assembly includes a first cylinder, and the first cylinder is hingedly arranged between the support rod and the molten iron tank car.

[0008] Among them, the telescopic assembly includes a sliding rod, a second cylinder and a first mounting plate, the support rod is provided with a sliding groove, the sliding rod is slidably set in the sliding groove, and the sliding rod can extend outside the support rod and be fixedly connected to the first mounting plate, the second cylinder is set in the sliding groove, the second cylinder is connected to the sliding rod, a rotating rod is rotatably arranged between the two first mounting plates through a bearing, and the cover plate is connected to the rotating rod through the first disassembly and assembly assembly.

[0009] Among them, the first disassembly and assembly component includes a first connecting block, a second connecting block, a first locking rod and a second locking rod, the first connecting block is fixedly set on the rotating rod, the first connecting block is provided with a connecting groove, the second connecting block is fixedly set on the cover plate, the second connecting block is plugged into the connecting groove, the second connecting block is provided with a first locking groove, the first locking rod is threadedly penetrated through the second connecting block and inserted into the first locking groove, and the first locking rod is provided with a second locking groove, the second locking rod is slidably penetrated through the second connecting block and is threadedly inserted into the second locking groove.

[0010] Among them, the second rotating component includes a second mounting plate, a winding drum, a driving motor and a connecting rope, the second mounting plate is fixedly arranged between the two first mounting plates, the winding drum is arranged on the second mounting plate, the driving motor drives the winding drum to rotate, and the connecting rope is used to connect the winding drum and the cover plate.

[0011] Among them, the second disassembly and assembly component includes a connecting ring, a third connecting block and a third locking rod, the connecting ring is connected to the end of the connecting rope away from the winding drum, the third connecting block is fixedly arranged on the cover plate, the third connecting block is provided with a third locking groove, the connecting ring can be arranged in the third locking groove, the third locking rod thread passes through the third connecting block, and the third locking rod passes through the third locking groove and the connecting ring.

[0012] Wherein, a pulley is arranged on the second mounting plate, and the connecting rope passes through the pulley.

[0013] Wherein, a heat preservation layer is arranged at one end of the cover plate abutting against the molten iron tank, and a protective layer is arranged at one end of the heat preservation layer abutting against the molten iron tank.

[0014] The two cover plates can be combined to form a cover body for closing the top opening of the molten iron ladle, and the shape of the cover body is adapted to the shape of the top opening of the molten iron ladle.

[0015] Wherein, the shape of the blocking block is adapted to the shape of the side of the molten iron ladle.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention provides a covering device for a molten iron tank truck. When covering, the cover plate is moved to a suitable height by the cooperation of the first rotating assembly and the telescopic assembly, and then the cover plate is driven to rotate to abut against the top of the molten iron tank by the second rotating assembly. The two cover plates are used in cooperation to close the top opening of the molten iron tank, and the covering work is completed; when uncovering, the cover plate is driven to rotate away from the top of the molten iron tank by the first rotating assembly and the second rotating assembly, and the uncovering work is completed; the device can realize the covering and uncovering work of the molten iron tank, realizes the insulation of the molten iron tank with a cover during the entire transportation process, and effectively reduces the heat loss of the molten iron.

[0018] 2. The present invention provides a covering device for a molten iron tank truck. When idle, the second rotating component drives the cover to rotate to fold close to the support rod, and then the telescopic component drives the cover to shrink to the lowest state, and then the first rotating component drives the cover to rotate close to the molten iron tank to complete the storage work. The blocking block can block and protect the side of the molten iron tank; the device can be stored when idle to save space, and can also provide safety protection for the molten iron tank to prevent the molten iron tank from tipping over due to accidental touch, thereby improving production safety.

[0019] 3. The present invention provides a covering device for a molten iron tank car. When removing the cover plate, the cover plate can be fixed by the first disassembly and assembly component and the second disassembly and assembly component to complete the disassembly work; the device can quickly and individually disassemble and assemble the cover plate to inspect or replace the cover plate, thereby reducing the difficulty of maintenance and improving ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall main structure in a covered state in some embodiments of the present application;

[0022] Figure 2 It is a schematic diagram of the overall main structure in the uncovered state in some embodiments of the present application;

[0023] Figure 3 It is a schematic diagram of the overall main view structure in the storage state in some embodiments of the present application;

[0024] Figure 4 It is a schematic diagram of the overall top view structure in a covered state in some embodiments of the present application;

[0025] Figure 5 It is a schematic diagram of a top view of the cover plate and the molten iron tank in the storage state in some embodiments of the present application;

[0026] Figure 6 It is a cross-sectional schematic diagram of the telescopic component structure in some embodiments of the present application;

[0027] Figure 7 for Figure 4 A schematic cross-sectional view of the enlarged structure at point A;

[0028] Figure 8 for Figure 4 A schematic cross-sectional view of the enlarged structure at B;

[0029] Fig. 9 Schematic diagram of the connecting rope and connecting ring structure in some embodiments of the present application;

[0030] Fig.10 Schematic diagram of the cover plate structure in some embodiments of the present application.

[0031] The reference numerals are:

[0032] 1. Iron ladle;

[0033] 2. Molten iron tank car;

[0034] 3. Cover plate; 31. Stop block; 32. Insulation layer; 33. Protective layer;

[0035] 4. Support rod; 41. Slide groove;

[0036] 5. First rotating assembly; 51. First cylinder;

[0037] 6. telescopic assembly; 61. sliding rod; 62. second cylinder; 63. first mounting plate; 64. rotating rod;

[0038] 7. First disassembly assembly; 71. First connection block; 72. Second connection block; 73. First locking rod; 74. Second locking rod; 75. Connection groove; 76. First locking groove; 77. Second locking groove;

[0039] 8. Second rotating assembly; 81. Second mounting plate; 82. Winding drum; 83. Driving motor; 84. Connecting rope; 85. Pulley;

[0040] 9. Second disassembly and assembly component; 91. Connecting ring; 92. Third connecting block; 93. Third locking rod; 94. Third locking groove. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] like Figures 1 to 5 As shown, an embodiment of the present application provides a molten iron ladle car capping device, comprising a molten iron ladle car 2 for placing a molten iron ladle 1, and two capping mechanisms are arranged on the molten iron ladle car 2, and the two capping mechanisms are symmetrically arranged on the left and right sides of the molten iron ladle 1;

[0048] The covering mechanism includes a cover plate 3 and two support rods 4, the support rod 4 is hingedly arranged on the molten iron ladle car 2, a first rotating component 5 is arranged between the support rod 4 and the molten iron ladle car 2, a telescopic component 6 is arranged on the support rod 4, the cover plate 3 is hingedly arranged between the two telescopic components 6, a first disassembly and assembly component 7 is arranged between the cover plate 3 and the telescopic component 6, a second rotating component 8 is arranged between the two telescopic components 6, a second disassembly and assembly component 9 is arranged between the cover plate 3 and the second rotating component 8, and a blocking block 31 is arranged on the cover plate 3.

[0049] When adding the cover, the cover plate 3 is moved to a suitable height by the coordinated use of the first rotating assembly 5 and the telescopic assembly 6, and then the cover plate 3 is driven by the second rotating assembly 8 to rotate until it abuts against the top of the molten iron tank 1. The two cover plates 3 are used in coordination to close the top opening of the molten iron tank 1, and the covering work is completed; when removing the cover, the cover plate 3 is driven by the first rotating assembly 5 and the second rotating assembly 8 to rotate away from the top of the molten iron tank 1, and the removing work is completed; the device can realize the covering and removing work of the molten iron tank 1, realizes the insulation of the molten iron tank 1 with a cover during the entire transportation process, and effectively reduces the heat loss of the molten iron.

[0050] When idle, the cover plate 3 is driven to rotate through the second rotating component 8 to fold close to the support rod 4, and then the cover plate 3 is driven to shrink to the lowest state through the telescopic component 6, and then the cover plate 3 is driven to rotate close to the molten iron tank 1 through the first rotating component 5, and the storage work can be completed. The blocking block 31 can block and protect the side of the molten iron tank 1; the device can be stored when idle to save space, and can also provide safety protection for the molten iron tank 1 to prevent the molten iron tank 1 from tipping over due to accidental touch, thereby improving production safety.

[0051] When disassembling the cover plate 3, the first disassembly assembly component 7 and the second disassembly assembly component 9 are used to release the device from fixing the cover plate 3, and the disassembly work can be completed; the device can quickly and individually disassemble and assemble the cover plate 3 to inspect or replace the cover plate 3, thereby reducing the difficulty of maintenance and improving convenience of use.

[0052] like Figures 1 to 4 As shown, in this embodiment, the first rotating assembly 5 includes a first cylinder 51, and the first cylinder 51 is hingedly arranged between the support rod 4 and the molten iron tank car 2; when in use, the first cylinder 51 is turned on to drive the support rod 4 to rotate, and the support rod 4 can drive the cover plate 3 to rotate.

[0053] like Figures 1 to 4 As shown in 6, in this embodiment, the telescopic assembly 6 includes a slide rod 61, a second cylinder 62 and a first mounting plate 63. The support rod 4 is provided with a slide groove 41. The slide rod 61 is slidably set in the slide groove 41, and the slide rod 61 can extend to the outside of the support rod 4 and be fixedly connected to the first mounting plate 63. The second cylinder 62 is set in the slide groove 41, and the second cylinder 62 is connected to the slide rod 61. A rotating rod 64 is rotatably arranged between the two first mounting plates 63 through a bearing, and the cover plate 3 is connected to the rotating rod 64 through the first disassembly assembly 7.

[0054] When in use, the second air cylinder 62 is turned on to drive the slide bar 61 to extend out of the support bar 4 or retract into the support bar 4, and the slide bar 61 can drive the cover plate 3 to move.

[0055] like Figures 1 to 4 As shown in 7, in this embodiment, the first disassembly and assembly component 7 includes a first connecting block 71, a second connecting block 72, a first locking rod 73 and a second locking rod 74. The first connecting block 71 is fixedly arranged on the rotating rod 64, and the first connecting block 71 is provided with a connecting groove 75. The second connecting block 72 is fixedly arranged on the cover plate 3. The second connecting block 72 is plugged into the connecting groove 75. The second connecting block 72 is provided with a first locking groove 76. The first locking rod 73 is threadedly penetrated through the second connecting block 72 and inserted into the first locking groove 76. The first locking rod 73 is provided with a second locking groove 77. The second locking rod 74 slides through the second connecting block 72 and is threadedly inserted into the second locking groove 77.

[0056] When the cover plate 3 is in the installed and used state, the second connecting block 72 is inserted into the connecting groove 75 of the first connecting block 71, the first locking rod 73 is threadedly inserted into the first locking groove 76 of the second connecting block 72, and the second locking rod 74 is threadedly inserted into the second locking groove 77 of the first locking rod 73. The first locking rod 73 and the second locking rod 74 are used in coordination to lock and fix the first connecting block 71 and the second connecting block 72, thereby locking and fixing the cover plate 3 and the rotating rod 64.

[0057] When removing the cover plate 3, rotate the second locking rod 74 to exit the second locking groove 77 of the first locking rod 73, then rotate the first locking rod 73 to exit the first locking groove 76 of the second connecting block 72, and then move the second connecting block 72 to exit the connecting groove 75 of the first connecting block 71, so that the cover plate 3 can be separated from the rotating rod 64.

[0058] like Figures 1 to 4 As shown, in this embodiment, the second rotating component 8 includes a second mounting plate 81, a winding drum 82, a driving motor 83 and a connecting rope 84. The second mounting plate 81 is fixedly disposed between the two first mounting plates 63, and the winding drum 82 is disposed on the second mounting plate 81. The driving motor 83 drives the winding drum 82 to rotate, and the connecting rope 84 is used to connect the winding drum 82 and the cover plate 3.

[0059] When in use, the driving motor 83 is turned on to drive the winding drum 82 to rotate, and the winding drum 82 rotates to release or reel in the connecting rope 84, and the connecting rope 84 can drive the cover plate 3 to rotate.

[0060] like Figures 1 to 4 As shown in 8 to 9, in this embodiment, the second disassembly and assembly component 9 includes a connecting ring 91, a third connecting block 92 and a third locking rod 93. The connecting ring 91 is connected to the end of the connecting rope 84 away from the winding drum 82. The third connecting block 92 is fixedly arranged on the cover plate 3. The third connecting block 92 is provided with a third locking groove 94. The connecting ring 91 can be arranged in the third locking groove 94. The third locking rod 93 is threadedly penetrated through the third connecting block 92, and the third locking rod 93 penetrates the third locking groove 94 and the connecting ring 91.

[0061] When the cover plate 3 is in the installed and used state, the connecting ring 91 is located in the third locking groove 94 of the third connecting block 92, and the third locking rod 93 is threadedly penetrated through the third connecting block 92 and the connecting ring 91 at the same time. The connecting ring 91 and the third locking rod 93 are used in combination to lock and fix the connecting rope 84 to the third connecting block 92, thereby locking and fixing the cover plate 3 to the connecting rope 84.

[0062] When disassembling the cover plate 3 , the third locking rod 93 is rotated to exit the connecting ring 91 , and then the connecting ring 91 is moved to the third locking groove 94 that exits the third connecting block 92 , so that the cover plate 3 and the connecting rope 84 can be separated.

[0063] like Figures 1 to 4 As shown, in this embodiment, a pulley 85 is provided on the second mounting plate 81, and the connecting rope 84 passes through the pulley 85; the coordinated use of the connecting rope 84 and the pulley 85 makes the connecting rope 84 more stable and smooth when moving, reduces wear and tear, and improves the stability of use.

[0064] like Fig.10As shown, in this embodiment, an insulation layer 32 is provided at one end of the cover plate 3 abutting against the molten iron tank 1, and a protective layer 33 is provided at one end of the insulation layer 32 abutting against the molten iron tank 1; the insulation layer 32 can insulate the temperature inside the molten iron tank 1, isolate the heat inside the molten iron tank 1 from heat exchange with the outside, and further reduce the heat loss of the molten iron; the protective layer 33 can protect the insulation layer 32 and the cover plate 3, prevent the insulation layer 32 and the cover plate 3 from being damaged under high temperature conditions, and extend the service life of the insulation layer 32 and the cover plate 3.

[0065] like Figures 1 to 5 As shown, in this embodiment, the two cover plates 3 can be combined to form a cover body for closing the top opening of the molten iron tank 1, and the shape of the cover body is adapted to the shape of the top opening of the molten iron tank 1; the two cover plates 3 can be combined to accurately match the opening at the top of the molten iron tank 1, ensuring that the molten iron tank 1 is effectively closed, preventing the molten iron from being exposed to the external environment, and reducing evaporation, pollution and heat loss.

[0066] like Figures 1 to 5 As shown, in this embodiment, the shape of the blocking block 31 is adapted to the shape of the side of the molten iron tank 1; the contact area between the blocking block 31 and the side of the molten iron tank 1 is large, which can provide more stable support, prevent the molten iron tank 1 from shaking or tipping over due to accidental touch, and further improve production safety.

[0067] Working principle: The capping device for the molten iron tank car provided in the present application, when capping, turns on the first cylinder 51 to drive the support rod 4 to rotate, and the support rod 4 can drive the cover plate 3 to rotate, and at the same time turns on the second cylinder 62 to drive the slide bar 61 to extend out of the support rod 4 or retract into the support rod 4, and the slide bar 61 can drive the cover plate 3 to move, and the cover plate 3 is driven to move to a suitable height through the cooperation of the first rotating component 5 and the telescopic component 6, and then the driving motor 83 is turned on to drive the winding drum 82 to rotate, and the winding drum 82 rotates to release or reel in the connecting rope 84, and the connecting rope 84 can drive the cover plate 3 to rotate, and the cover plate 3 is driven to rotate to abut against the top of the molten iron tank 1 through the second rotating component 8, and the two cover plates 3 are used in cooperation to close the top opening of the molten iron tank 1, and the capping work is completed;

[0068] When idle, the cover plate 3 is rotated by the second rotating assembly 8 to be folded close to the support rod 4, and then the cover plate 3 is retracted to the lowest state by the telescopic assembly 6, and then the cover plate 3 is rotated close to the molten iron tank 1 by the first rotating assembly 5 to complete the storage work, and the blocking block 31 can block and protect the side of the molten iron tank 1;

[0069] When removing the cover 3, rotate the second locking rod 74 to exit the second locking groove 77 of the first locking rod 73, then rotate the first locking rod 73 to exit the first locking groove 76 of the second connecting block 72, and then move the second connecting block 72 to exit the connecting groove 75 of the first connecting block 71, so that the cover 3 can be separated from the rotating rod 64, and at the same time, rotate the third locking rod 93 to exit the connecting ring 91, and then move the connecting ring 91 to the third locking groove 94 of the third connecting block 92, so that the cover 3 can be separated from the connecting rope 84, and the disassembly work can be completed by releasing the device for fixing the cover 3 through the first disassembly and assembly component 7 and the second disassembly and assembly component 9.

[0070] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A capping device for a molten iron tank car, characterized in that: It comprises a molten iron ladle car (2) for placing a molten iron ladle (1), the molten iron ladle car (2) being provided with two covering mechanisms, the two covering mechanisms being symmetrically arranged on the left and right sides of the molten iron ladle (1); The covering mechanism comprises a cover plate (3) and two support rods (4); the support rod (4) is hingedly arranged on the molten iron ladle car (2); a first rotating assembly (5) is arranged between the support rod (4) and the molten iron ladle car (2); a telescopic assembly (6) is arranged on the support rod (4); the cover plate (3) is hingedly arranged between the two telescopic assemblies (6); a first disassembly assembly (7) is arranged between the cover plate (3) and the telescopic assembly (6); a second rotating assembly (8) is arranged between the cover plate (3) and the second rotating assembly (8); and a blocking block (31) is arranged on the cover plate (3).

2. The capping device for a molten iron tank car according to claim 1, characterized in that: The first rotating assembly (5) comprises a first cylinder (51), and the first cylinder (51) is hingedly arranged between the support rod (4) and the molten iron ladle car (2).

3. The capping device for a molten iron tank car according to claim 1, characterized in that: The telescopic assembly (6) comprises a slide rod (61), a second cylinder (62) and a first mounting plate (63); the support rod (4) is provided with a slide groove (41); the slide rod (61) is slidably arranged in the slide groove (41); and the slide rod (61) can extend outside the support rod (4) and be fixedly connected to the first mounting plate (63); the second cylinder (62) is arranged in the slide groove (41); the second cylinder (62) is connected to the slide rod (61); a rotating rod (64) is rotatably arranged between the two first mounting plates (63) via a bearing; and the cover plate (3) is connected to the rotating rod (64) via the first disassembly assembly (7).

4. The capping device for a molten iron tank car according to claim 3, characterized in that: The first disassembly assembly (7) comprises a first connecting block (71), a second connecting block (72), a first locking rod (73) and a second locking rod (74); the first connecting block (71) is fixedly arranged on the rotating rod (64); the first connecting block (71) is provided with a connecting groove (75); the second connecting block (72) is fixedly arranged on the cover plate (3); the second connecting block (72) is plugged into and matched with the connecting groove (75); the second connecting block (72) is provided with a first locking groove (76); the first locking rod (73) is threadedly passed through the second connecting block (72) and inserted into the first locking groove (76); the first locking rod (73) is provided with a second locking groove (77); the second locking rod (74) is slidably passed through the second connecting block (72) and is threadedly inserted into the second locking groove (77).

5. The capping device for a molten iron tank car according to claim 3, characterized in that: The second rotating assembly (8) comprises a second mounting plate (81), a wire winding drum (82), a driving motor (83) and a connecting rope (84); the second mounting plate (81) is fixedly arranged between the two first mounting plates (63); the wire winding drum (82) is arranged on the second mounting plate (81); the driving motor (83) drives the wire winding drum (82) to rotate; and the connecting rope (84) is used to connect the wire winding drum (82) and the cover plate (3).

6. The capping device for a molten iron tank car according to claim 5, characterized in that: The second disassembly and assembly component (9) comprises a connecting ring (91), a third connecting block (92) and a third locking rod (93); the connecting ring (91) is connected to an end of the connecting rope (84) away from the winding drum (82); the third connecting block (92) is fixedly arranged on the cover plate (3); the third connecting block (92) is provided with a third locking groove (94); the connecting ring (91) can be arranged in the third locking groove (94); the third locking rod (93) is threadedly penetrated through the third connecting block (92); and the third locking rod (93) penetrates the third locking groove (94) and the connecting ring (91).

7. The capping device for a molten iron tank car according to claim 5, characterized in that: The second mounting plate (81) is provided with a pulley (85), and the connecting rope (84) passes through the pulley (85).

8. The capping device for a molten iron tank car according to claim 1, characterized in that: An insulation layer (32) is provided at one end of the cover plate (3) abutting against the molten iron tank (1), and a protective layer (33) is provided at one end of the insulation layer (32) abutting against the molten iron tank (1).

9. The capping device for a molten iron tank car according to claim 1, characterized in that: The two cover plates (3) can be combined to form a cover body for closing the top opening of the molten iron ladle (1); the shape of the cover body is adapted to the shape of the top opening of the molten iron ladle (1).

10. The capping device for a molten iron tank car according to claim 1, characterized in that: The shape of the blocking block (31) is adapted to the shape of the side of the molten iron ladle (1).

Images