Tilting device and melt processing method

Abstract

A tilting device and a melt processing method are provided that can stably discharge a melt from a container in an accurate amount. [Solution] The present invention provides a tilting device that includes a main body, a mounting section disposed on top of the main body so that a container can be placed thereon, and a tilting section that is disposed on the main body so that the mounting section can be tilted, is connected to the mounting section, and has a reducer, and that can discharge molten material from the container, and includes the steps of placing the container containing the molten material on the tilting device, preparing a transport cart below the container that contains a molten material different from the molten material, tilting the container with the tilting device, slowing down the tilting speed of the container, and discharging the molten material from the container and loading it into the transport cart. the step of tilting the container includes a step of rotating a driver of the tilting device, a step of rotating a tilting shaft member of the tilting device with the driver, and a step of tilting the container using the tilting shaft member; and the step of decelerating the tilting speed of the container includes a step of primarily decelerating the rotational speed of a rotational force generated in the driver, a step of secondarily decelerating the rotational speed of the rotational force, and a step of transmitting the rotational force, the rotational speed of which has been secondarily decelerated, to the tilting shaft member.

Description

[Technical Field]

[0001] The present invention relates to a tilting device and a melt processing method, and more particularly to a tilting device and a melt processing method that can stably discharge melt from a container. [Background technology]

[0002] Since molten steel produced in an electric furnace has a high content of impurity elements, it is difficult to produce high-quality steel using the molten steel produced in an electric furnace. Therefore, the molten steel produced in an electric furnace is combined with molten pig iron produced in a blast furnace to adjust the content of impurity elements in the molten steel, and high-quality steel is produced using the molten steel with the adjusted content of impurity elements.

[0003] The method for combining molten steel and molten pig iron is as follows: For example, molten steel produced in an electric furnace is placed in a ladle, and the ladle is placed above a molten pig iron car containing molten pig iron produced in a blast furnace. The ladle is then tilted to charge the molten steel in the ladle into the molten pig iron car, and the molten steel and molten pig iron are combined in the molten pig iron car.

[0004] Meanwhile, there are two types of equipment used to tilt ladles in steelworks. One type is equipment in which a motor is directly connected to the ladle's trinion and the ladle is tilted by driving the motor, and the other type is equipment in which the bottom of the ladle is supported by a cylinder and the ladle is tilted by operating the cylinder.

[0005] However, motor-driven equipment requires a motor to be directly connected to the trinion, which results in problems such as a large overall volume, a large-capacity motor, and long installation times. Furthermore, even if a low-speed motor is used, the motor rotation speed is higher than the recommended rotation speed for the trinion, which allows stable tilting of the ladle. Therefore, the high-speed tilting of the ladle makes it difficult to accurately control the discharge rate of molten steel.

[0006] In addition, the cylinder-operated equipment is equipped with a hydraulic device and a large-capacity cylinder, and the hydraulic device raises the cylinder to tilt the bottom of the ladle and tilt the entire ladle. During tilting, the center of gravity of the ladle moves horizontally, which causes the flow of molten steel in the ladle to become unstable, making it difficult to accurately control the amount of molten steel discharged.

[0007] The technology behind the present invention is described in the following patent documents. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Korean Patent Publication No. 10-2021-0038086 [Patent Document 2] Korean Patent Publication No. 10-2012-0134878 Summary of the Invention [Problem to be solved by the invention]

[0009] An object of the present invention is to provide a tilting device and a molten material processing method that can stably discharge molten material from a container.

[0010] Another object of the present invention is to provide a tilting device and a melt processing method that can discharge a precise amount of melt from a container. [Means for solving the problem]

[0011] The tilting device of the present invention is a tilting device capable of discharging molten material from a container, and is characterized by comprising a main body portion, a placing portion arranged on the upper part of the main body portion so that the container can be placed thereon, and a tilting portion arranged on the main body portion so that the placing portion can be tilted, connected to the placing portion, and having a reducer.

[0012] The tilting portion may have two or more types of reducers connected to each other.

[0013] The tilting portion may include a driver supported by the main body portion, and the two or more types of reducers may include a gear reducer connected to the driver and a chain reducer connecting the gear reducer to the mounting portion.

[0014] The tilting section may include a tilting shaft member that is positioned at the height of the center of gravity of a container placed on the placement section and connected to the placement section; a driver that is positioned away from the tilting shaft member in a direction intersecting the extension direction of the tilting shaft member; a gear reducer that is connected to the driver so as to be able to primarily reduce the rotational speed of the driver; a chain reducer that is disposed on the gear reducer and the tilting shaft member so as to secondarily reduce the rotational speed of the gear reducer and transmit it to the tilting shaft member; and a housing that is positioned so that the tilting shaft member passes through and that accommodates the driver, the gear reducer, and the chain reducer.

[0015] The gear reducer may include a plurality of gears coupled to each other, and a gear output end connected to the plurality of gears, spaced apart from the tilting shaft member in the intersecting direction, and disposed in the extending direction, and the chain reducer may include a primary gear member attached to an outer circumferential surface of the tilting shaft member, a secondary gear member attached to an outer circumferential surface of the gear output end and having an outer diameter smaller than that of the primary gear member, and a chain member arranged to connect the primary gear member and the secondary gear member.

[0016] The gear output end may be disposed at a height lower than that of the tilting shaft member.

[0017] A tilting device according to an embodiment of the present invention is characterized by comprising a main body, a mounting section arranged on the top of the main body so that a container can be placed on it, a tilting section arranged on the main body so that the mounting section can be tilted and connected to the mounting section, and damper sections arranged on both sides of the tilting section and attached to the bottom of the main body so as to cushion the impact applied from the container and maintain the horizontality of the main body.

[0018] The tilting portion may have a reducer so as to be able to adjust the tilting speed of the container, and the damper portion may have an elastic assembly so as to be able to elastically support the main body portion in the vertical direction.

[0019] The tilting device may include a weight measuring unit attached to a plurality of positions on the lower part of the main body, and a control unit capable of controlling whether or not the tilting unit operates depending on whether or not the container is placed on the placement unit, and capable of controlling the tilting angle of the tilting unit using the weight value measured by the weight measuring unit.

[0020] The weight measuring unit may be equipped with a load cell and may be arranged at multiple positions spaced horizontally from the center of the placement unit, and the control unit may be capable of controlling the tilting angle of the tilting unit using either the sum or average value of the weight values ​​measured at the multiple positions by the weight measuring unit.

[0021] The device may comprise a weight measuring unit attached to a plurality of positions on the lower part of the main body unit, and a control unit capable of controlling whether or not the tilting unit is operated depending on whether or not the container is placed on the placement unit, and capable of controlling the tilting angle of the tilting unit using a weight value measured by the weight measuring unit, and the damper unit may be arranged for each weight measuring unit, and may be arranged on both sides of the weight measuring unit.

[0022] The tilting device may include an angle measuring unit attached to the placement unit so as to face the tilting unit, and the control unit may be capable of determining the angle of the container from the angle of the placement unit measured by the angle measuring unit, and controlling the tilting angle of the tilting unit based on the determined angle of the container.

[0023] The main body portion may include a plurality of base members that are spaced apart from each other in one direction in which the placement portion and the tilting portion face each other and extend in another direction that intersects with the one direction, and the tilting portions may be attached to the upper surfaces of the plurality of base members, respectively, and the placement portion may be attached so as to connect the respective tilting portions between each other.

[0024] The mounting portion may include a mounting ring whose center is open in the vertical direction so that at least the lower part of the container can be inserted, and whose upper surface can engage with a protruding portion on the outer peripheral surface of the container, and connecting members attached to both sides of the mounting ring in the one direction, facing the tilting portion in the one direction, and rotatably connected to the tilting shaft member of the tilting portion.

[0025] The center of rotation of the connecting member and the center of gravity of the container placed on the mounting ring may be aligned in the one direction.

[0026] The tilting device may be arranged on the upper surface of the placement section so as to face the tilting section in the other direction, and may include a fastening section to which the container can be fastened.

[0027] The tilting device may have an interior that opens horizontally to allow a transport vehicle to pass through for receiving and transporting the molten material from the container, and may be provided with a main body receiving portion that is positioned below the main body portion to separate the main body portion from the floor surface on which the transport vehicle runs, and that has a guide member for guiding the molten material.

[0028] The molten material processing method of the present invention is characterized by including the steps of placing a container containing a molten material on a tilting device, preparing a transport cart containing a molten material different from the molten material below the container, tilting the container using the tilting device, slowing down the tilting speed of the container, and discharging the molten material from the container and loading it into the transport cart.

[0029] The process of tilting the container may include a process of rotating a driver of the tilting device, a process of rotating a tilting shaft member of the tilting device with the driver, and a process of tilting the container using the tilting shaft member, and the process of decelerating the tilting speed of the container may include a process of primarily decelerating the rotational speed of a rotational force generated in the driver, a process of secondarily decelerating the primarily decelerated rotational speed of the rotational force, and a process of transmitting the secondarily decelerated rotational force to the tilting shaft member.

[0030] The step of primarily reducing the speed may include a step of reducing the rotational speed of the rotational force at a first reduction ratio using a gear reduction method, and the step of secondarily reducing the speed may include a step of reducing the primarily reduced rotational speed of the rotational force at a second reduction ratio greater than the first reduction ratio using a chain reduction method.

[0031] The molten material processing method of the present invention is characterized by including the steps of placing a container containing a molten material on a tilting device, preparing a transport cart containing a molten material different from the molten material below the container, tilting the container using the tilting device, discharging the molten material from the container and loading it into the transport cart, and, between the placing step and the loading step, eliminating the impact caused by the change in weight applied to the tilting device due to the placing and tilting of the container and maintaining the horizontality of the tilting device.

[0032] The molten material processing method may further include a step of slowing down the tilting speed of the container, and the step of maintaining the horizontality of the tilting device may include a step of elastically supporting the main body of the tilting device in the vertical direction at multiple positions in the horizontal direction of the tilting device.

[0033] The step of tilting the container with the tilting device may include the step of aligning a center of rotation of the tilting device with a center of gravity of the container.

[0034] The step of aligning the center of rotation with the center of gravity of the container may include the step of aligning tilting shaft members of the tilting device with the center of gravity of the container on both sides of the container.

[0035] The process of tilting the container with the tilting device may include a process of measuring the weight of the container at multiple positions on the tilting device, and a process of adjusting the tilting angle of the container using the weight value of the container.

[0036] The process of adjusting the tilting angle of the container using the weight value of the container may include a process of calculating either the sum or average of the weight values ​​measured at the multiple positions as a calculated value, a process of calculating the amount of molten material discharged from the container using the calculated value, and a process of comparing the discharged amount with a pre-input reference amount and increasing or decreasing the tilting angle based on the comparison result.

[0037] The step of increasing or decreasing the tilt angle may include a step of increasing the tilt angle in a stepwise manner if the discharge amount is smaller than the reference amount, and a step of decreasing the tilt angle in a stepwise manner if the discharge amount is equal to or greater than the reference amount.

[0038] The molten material may include molten steel produced in an electric furnace, and the molten material different from the molten material may include molten pig iron produced in a blast furnace, the vessel may comprise a ladle, and the transport vehicle may comprise a torpedo car. [Effects of the Invention]

[0039] According to the present invention, the speed at which the container is tilted can be slowed down using a decelerator while the tilting unit is tilting the container. This prevents the molten material from being suddenly discharged from the container due to excessively rapid tilting of the container. This allows the molten material to be stably discharged from the container.

[0040] In addition, while the tilting unit tilts the container, the damper unit can be used to buffer the impact applied from the container to the tilting device, thereby maintaining the horizontal position of the tilting device. This prevents the flow of molten material inside the container from becoming unstable and prevents the molten material from being suddenly discharged from the container. This allows the molten material to be discharged stably.

[0041] Furthermore, by aligning the center of gravity of the container with the center of rotation of the tilting unit while tilting the container with the tilting unit and preventing the center of gravity from changing, it is possible to prevent the flow of the molten material inside the container from becoming unstable and to prevent the molten material from being suddenly discharged from the container, thereby enabling the molten material to be discharged stably.

[0042] Furthermore, by steadily discharging the molten material from the container, the flow of the molten material being discharged is prevented from applying an irregular load to the container, thereby preventing the container from shaking. Therefore, the weight of the container can be accurately measured even while the molten material is being discharged, and by accurately adjusting the tilting angle of the container using the measured weight value, the exact amount of molten material can be discharged from the container. [Brief explanation of the drawings]

[0043] [Figure 1] 1 is a schematic view of a tilting device according to the present invention; [Figure 2] FIG. 2 is a partial enlarged view of a tilting device according to the present invention. [Figure 3] FIG. 4 is an enlarged view of a tilting portion according to the present invention. [Figure 4] 4 is an operational diagram of the tilting device according to the present invention; FIG. [Figure 5] 4 is an operational diagram of the tilting device according to the present invention; FIG. [Figure 6] 4 is an operational diagram of the tilting device according to the present invention; FIG. [Figure 7] 4 is an operational diagram of the tilting device according to the present invention; FIG. [Figure 8] 1 is a flow chart of a melt processing method according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0044] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be embodied in various different forms. The following embodiments are provided solely to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. The drawings may be exaggerated to illustrate the embodiments of the present invention, and the same reference numerals in the drawings indicate the same components.

[0045] The present invention relates to a tilting device and a molten material treatment method, and below, an embodiment of the present invention will be described in detail using an example in which the tilting device and the molten material treatment method are applied to a ladle used to transport molten steel in steelmaking operations.

[0046] It goes without saying that the tilting device and molten material processing method of the present invention can be applied as a tilting device for tilting a container containing a wide variety of materials to be processed and as a method for processing the materials.

[0047] Before describing the tilting device and melt processing method of the present invention, the melt manufacturing equipment will be described.

[0048] The facility for producing the molten material of the present invention may include an electric furnace facility and a blast furnace facility. The electric furnace facility can produce molten steel by charging an iron source containing scrap iron and direct reduced iron into the electric furnace and melting it. The blast furnace facility can produce molten iron by charging a blast furnace charge containing iron ore, sintered ore, and coke into the blast furnace and melting and reducing it. Furthermore, the molten steel produced in the electric furnace facility can be contained in a ladle, and the molten iron produced in the blast furnace facility can be contained in a torpedo car. In this case, the ladle is sometimes called a container, and the torpedo car is sometimes called a hot metal car or a carrier.

[0049] On the other hand, there are many different types of melt production equipment, and the types of melts produced in the equipment can also be very diverse.

[0050] Fig. 1 is a schematic diagram of a tilting device of the present invention, Fig. 2 is a partially enlarged view of the tilting device of the present invention, and Fig. 3 is an enlarged view of a tilting portion of the present invention.

[0051] The tilting device of the present invention will be described in detail with reference to FIGS.

[0052] The tilting device of the present invention is capable of discharging molten material from a container 10, and comprises a main body 200, a placing section 300 arranged on the top of the main body 200 so that the container 10 can be placed thereon, and a tilting section 500 arranged on the main body 200 so that the placing section 300 can be tilted, connected to the placing section 300, and having a reducer.

[0053] In addition, the tilting device of the present invention may be provided with a main body receiving section 100 whose interior is opened horizontally to allow passage of a transport vehicle 20 for receiving and transporting the molten material poured from the container 10, and which is arranged below the main body section 200 to separate the main body section 200 from the floor surface on which the transport vehicle 20 runs, and which has a guide member 130 for guiding the molten material, and a fastening section 400 which is arranged on the upper surface of the loading section 300 opposite the tilting section 500 and to which the container 10 can be fastened.

[0054] Furthermore, the tilting device according to the embodiment of the present invention may include weight measuring units 600 attached to a plurality of positions on the lower part of the main body 100, an angle measuring unit 700 attached to the placement unit 300 so as to face the tilting unit 500, and a control unit 900 that can control whether or not the tilting unit 500 is operated depending on whether a container 10 is placed on the placement unit 300 and can control the tilting angle of the tilting unit 500 using the weight value measured by the weight measuring unit 600. Here, the control unit 900 can determine the angle of the container 10 from the angle of the placement unit 300 measured by the angle measuring unit 700, and can control the tilting angle of the tilting unit 500 based on the determined angle of the container 10.

[0055] The melt may include molten steel. More specifically, the melt may include molten steel produced in an electric furnace. Needless to say, the type of melt may be diverse. The melt may include impurity elements resulting from scrap iron. The melt may be contained in a container 10 and discharged from the container 10 onto a transport car 20 by a tilting device. The discharged melt may be combined with a different melt inside the transport car 20, allowing the composition to be adjusted. The melt with the adjusted composition can be used to produce high-quality steel.

[0056] The term "different molten material" refers to a molten material that is different from the molten material contained in the vessel 10. For example, the different molten material inside the transport vehicle 20 may differ from the molten material contained in the vessel 10 in at least one of the following: manufacturing equipment, manufacturing process, manufacturing time, content of components, and temperature. Needless to say, "different" may have a wide variety of meanings in addition to these. In an embodiment of the present invention, the different molten material may include molten iron produced in a blast furnace. Needless to say, the type of different molten material may be diverse.

[0057] In the following, the melt is referred to as a first melt M1, and the melt different from the melt is referred to as a second melt M2.

[0058] The container 10 serves to store the first molten material M1 and to transport the first molten material M1 to the upper side of the transport vehicle 20. The container 10 may include a container body 11, a protruding portion 12, and a locking portion 13. The container body 11 may have an internal storage space for storing the first molten material M1, and may have an open top. The first molten material M1 can be stored in the storage space through the opening at the top of the container body 11. Furthermore, when the container 10 is tilted, the first molten material M1 in the storage space can be discharged to the outside of the container 10 through the opening at the top of the container body 11. Meanwhile, the container body 11 may include a ladle body.

[0059] The protrusions 12 serve to place the container body 11 on the placement part 300. The protrusions 12 may protrude from the outer circumferential surface of the container body 11 on both sides of the container body 11 in one direction.

[0060] The one direction may be, for example, the left-right direction (X-axis direction). In this case, the front-rear direction, which is a direction intersecting the left-right direction, may be referred to as the other direction (Y-axis direction). The one direction and the other direction may be collectively referred to as the horizontal direction. Furthermore, the direction intersecting the horizontal direction may be the up-down direction (Z-axis direction). Needless to say, such definitions of directions are merely examples for explaining embodiments of the present invention, and directions can be defined in a wide variety of ways.

[0061] There may be a plurality of protrusions 12, for example, two. The protrusions 12 may also be formed in a box shape. In this case, the protrusions 12 may have a lower surface, an upper surface, a front surface, a rear surface, and side surfaces. Furthermore, the lower surface of the protrusions 12 may be placed on the placement portion 300, and the front and rear surfaces may be fastened to the fastening portion 400. Needless to say, the number, shape, and structure of the protrusions 12 may vary widely.

[0062] Meanwhile, fastening members (not shown) may be formed on the front and rear surfaces of the protrusion 12. The fastening members may have at least one of a fastening groove and a fastening protrusion. Needless to say, the type of fastening member may be varied.

[0063] The locking portions 13 serve to hoist and lower the vessel body 11. The number of locking portions 13 may be the same as the number of protrusions 12, or each may be attached to the side surface of the protrusion 12. The locking portions 13 can be locked to a main hoisting hook (not shown) of a crane system, and the vessel body 11 can be raised and lowered by raising and lowering the main hoisting hook. On the other hand, the locking portions 13 may be provided with a trinion of a ladle.

[0064] The transport vehicle 20 serves to transport the second molten material M2 and to receive the first molten material M1 discharged from the container 10 and combine it with the second molten material M2. The transport vehicle 20 may include a container body 21, a vehicle body 22, and a rotation driver 23. The container body 21 may have a storage space capable of receiving the second molten material M2 and allowing the first molten material M1 and the second molten material M2 to be combined, and may have an opening formed at the top. The container body 21 may be cylindrical, extending in one direction and decreasing in diameter toward both sides in that direction. The opening may be formed at the top of the outer circumferential surface of the container body 21. Needless to say, the position of the opening may change when the container body 21 is rotated. Meanwhile, a cover may be attached or detached to the opening.

[0065] The vehicle body 22 serves to move the container body 21. The vehicle body 22 may be arranged at both end portions of the container body 21. The vehicle body 22 may be formed to be able to move, and a variety of structures may be used for this purpose. The rotation driver 23 may be supported on the upper surface of the vehicle body 22. Both end portions of the container body 21 may be rotatably attached to the rotation driver 23. Meanwhile, the transport vehicle 20 may be equipped with a torpedo car.

[0066] The main body receiving portion 100 serves to support the main body portion 200 and to separate the main body portion 200 above the floor surface on which the transport vehicle 20 travels so that the transport vehicle 20 can be positioned below the main body portion 200. The main body receiving portion 100 also serves to guide the first molten material M1 discharged from the container 10 to the opening side of the transport vehicle 20.

[0067] The main body receiving portion 100 may include a frame assembly 110 that is spaced apart from the floor surface on which the transport vehicle 20 runs, extends in one direction and the other, and is connected to each other; a plurality of pillar members 120 that extend downward from the bottom of the frame assembly 110 and are supported on the floor surface on which the transport vehicle 20 runs; and a guide member 130 that is arranged on the frame assembly 110, has a center that is open in the vertical direction, and has an upper surface that slopes from the periphery toward the center.

[0068] The frame assembly 110 may be disposed horizontally at a height higher than the height of the transport vehicle 20. The main body 100 may be disposed on the upper surface of the frame assembly 110. The lower surface of the frame assembly 110 may be supported by pillar members 120. The pillar members 120 may be horizontally spaced apart to allow the transport vehicle 20 to pass through. The guide member 130 may be disposed horizontally at a height higher than the height of the transport vehicle 20. Furthermore, the upper surface of the guide member 130 may be exposed upward from the frame assembly 110, and the lower surface may be exposed downward from the frame assembly 110. The central opening of the guide member 130 may have a smaller diameter than the opening formed in the container body 21 of the transport vehicle 20. The guide member 130 may be funnel-shaped. Needless to say, the shape of the guide member 130 may be various. Meanwhile, the above-mentioned height may be the height from the floor surface on which the transport vehicle 20 travels.

[0069] The main body 200 serves to support the tilting unit 500. The main body 200 may be disposed on the upper surface of the frame assembly 110. In this case, the weight measuring unit 600 may be disposed between the main body 200 and the upper surface of the frame assembly 110. That is, the weight measuring unit 600 may be placed on the upper surface of the frame assembly 110, and the main body 200 may be supported by the weight measuring unit 600.

[0070] The main body 200 may include a plurality of base members 210. For example, the number of base members 210 may be two. Needless to say, the number of base members 210 may vary. The base members 210 may be spaced apart from each other in one direction, or may extend in the other direction. Here, the one direction may be, for example, the left-right direction in which the placement unit 300 and the tilting unit 500 face each other. In this case, the other direction may be the front-rear direction.

[0071] The distance between the multiple base members 210 in one direction may be greater than the size of the container 10 in one direction. Therefore, when the tilting unit 500 tilts the container 10 placed on the placing unit 300, it is possible to prevent collision between the container 10 and the multiple base members 210.

[0072] Meanwhile, the main body 200 may include a plurality of mounting members. The plurality of mounting members may include a plurality of first mounting members 220 respectively arranged on the upper surfaces of the plurality of base members 210, and a plurality of second mounting members 230 respectively arranged on the upper surfaces of the plurality of first mounting members 220. In this case, the tilting unit 500 may be arranged on the upper surface of the second mounting member 230. Needless to say, the tilting unit 500 may be arranged on the upper surface of the first mounting member 220, or may be arranged on the upper surface of the base member 210.

[0073] The mounting unit 300 serves to mount the container 10 and tilt the container 10 while being tilted by the tilting unit 500. The mounting unit 300 may be disposed between the plurality of base members 210 such that at least a portion of the mounting unit 300 is positioned above the base members 210. The mounting unit 300 may be attached between the plurality of tilting units 500 so as to connect the plurality of tilting units 500. The mounting unit 300 may also include a mounting ring 310 and a connecting member 320.

[0074] The mounting ring 310 serves to mount the container 10. The mounting ring 310 may extend horizontally or may be open from the top to the bottom in the vertical direction to form a through-hole. That is, the mounting ring 310 may be formed in a ring shape with a through-hole. In this case, the container body 11 may be disposed in the through-hole. Specifically, at least the lower part of the container body 11 may be fitted into the through-hole. Furthermore, the lower surface of the protrusion 12 of the container 10 may be placed on both peripheries of the top surface of the mounting ring 310. In this case, the peripheries on both sides may refer to the peripheries on both sides in one direction, for example, the left-right direction. Alternatively, the through-hole may be formed in the horizontal center of the mounting ring 310.

[0075] The connecting member 320 serves to tilt the container 10 by tilting the mounting ring 310 using the rotational force of the tilting unit 500. That is, the connecting member 320 may be rotated by the rotational force of the tilting unit 500 so as to tilt the mounting ring 310.

[0076] The connecting members 320 may be attached to one side of the mounting ring 310, for example, on both sides in the left and right direction. Needless to say, the connecting members 320 may be formed to protrude from the mounting ring 310. The connecting members 320 may face the tilting unit 500 in one direction, or may be rotatably connected to the tilting shaft member 510 of the tilting unit 500.

[0077] The lower portion of the connecting member 320 may be box-shaped. The upper portion of the connecting member 320 may have a shape in which the area in one direction narrows as the distance from the lower portion of the connecting member 320 increases. Needless to say, the shape of the connecting member 320 may be varied. A tilting shaft member (described later) of the tilting unit 500 may be attached to the upper portion of the outer surface of the connecting member 320. The mounting ring 310 may also be connected to the lower portion of the inner surface of the connecting member 320. The connecting member 320 may rotate in the same manner as the tilting shaft member when the tilting shaft member rotates, and the lower portion may rotate in the other direction and up and down around the upper portion. Therefore, the container 10 can be tilted in the same manner as the mounting ring 310 tilts in the other direction and up and down around the tilting shaft member.

[0078] On the other hand, the inner surface may refer to a surface of the connecting member that faces an adjacent connecting member, and the outer surface may be a surface that is opposite to the inner surface and parallel to the inner surface.

[0079] The outer surface of the connecting member 320 may have a predetermined play between it and the inner surface of the base member 210 that faces the connecting member. Similarly, the outer surface of the connecting member 320 may have a predetermined play between it and the inner surface of the mount member that faces the connecting member. Furthermore, the outer surface of the connecting member 320 may have a predetermined play between it and the inner surface of the tilting unit 500 that faces the connecting member. Here, play may refer to play in one direction. This makes it possible to prevent the connecting member 320 from colliding with the base member 210, the mount member, and the tilting unit 500 while being tilted by the rotation of the tilting shaft member 510.

[0080] The center of gravity of the container 10 may be aligned with the center of rotation of the upper part of the connecting member 320 in the other direction, for example, the front-to-rear direction. Here, "aligned" means that the position of the center of rotation in one direction and the position of the center of gravity in one direction coincide within an error range. In this case, the error range may be a distance range between the center of rotation and the center of gravity that is sufficiently smaller than the rotational force generated by the tilting unit 500, and thus suppresses or prevents any influence on the rotation of the container 10. Needless to say, the error range may also refer to an error range due to measurement error.

[0081] Furthermore, the center of gravity of the container 10 may be substantially aligned with the center of rotation of the upper portion of the connecting member 320 in the vertical direction. The height of the center of gravity of the container 10 may be higher or lower within a predetermined range depending on the amount of first molten material M1 contained in the container 10. However, due to such height differences, the magnitude of the moment of inertia generated during the rotation of the container 10 can be sufficiently covered within the range of the rotational force generated by the tilting unit 500 to tilt the heavy container 10. Furthermore, a change in the height of the center of gravity in the vertical direction may have a minimal effect on the discharge flow of the molten material compared to a change in the position of the center of gravity in the front-to-rear direction. Therefore, in an embodiment of the present invention, the center of gravity of the container 10 is considered to be aligned with the center of rotation of the upper portion of the connecting member 320 in the vertical direction. However, the aforementioned center of rotation may also refer to the position where the center line passing through the center of the tilting shaft member of the tilting unit 500 in the extension direction of the tilting shaft member, for example, in the other direction, is connected to the upper portion of the outer surface of the connecting member 320. The center of gravity may be the center of gravity of the container 10 when it is placed on the mounting ring 310, and at this time, the container 10 may contain the first molten material M1.

[0082] The fastening portion 400 serves to secure the container 10 placed on the mounting portion 300 to the mounting portion 300. A plurality of fastening portions 400 may be arranged on each of the peripheries on both sides of the upper surface of the mounting ring 310 in one direction, or may face the inner surface of the connecting member 320 in one direction. Needless to say, one fastening portion 400 may be arranged on each of the peripheries on both sides of the upper surface of the mounting ring 310 in one direction. The fastening portion 400 will be described below on the basis that two fastening portions 400 are arranged on each of the peripheries on both sides of the upper surface of the mounting ring 310 in one direction. Needless to say, the content described below is similarly or equally applicable to cases where one fastening portion 400 is arranged at each position, or where three or more fastening portions 400 are arranged.

[0083] The fastening portion 400 may contact the front and rear surfaces of the protrusion 12 in the other direction, for example, in the front-rear direction, or may face the front and rear surfaces of the fastening portion 400 at a predetermined distance in the other direction. A fastening member may be formed on the front and rear surfaces of the fastening portion 400 facing the other direction. The fastening member may have at least one of a fastening protrusion and a fastening groove, and be detachable from the fastening member formed on the protrusion 12. In this case, if the fastening member of the fastening portion 400 has a fastening protrusion, the fastening member of the protrusion 12 facing it may have a fastening groove, and the fastening protrusion of the fastening portion 400 may be fitted into the fastening groove of the protrusion 12 when the container body 11 is placed. The fastening protrusion may be extendable and retractable to enable the fitting. The fastening protrusion may have a ball spring plunger structure. Needless to say, the fastening protrusion may have a driving mechanism such as a hydraulic cylinder or an actuator, and its extension and retraction may be controlled by the control unit 900. Various types of fastening members may be used.

[0084] Due to the above-described structure, the fastening portion 400 is fastened to the protrusion 12 while the container body 11 is placed on the mounting ring 310, thereby preventing the container body 11 from coming off the mounting ring 310 when the mounting ring 310 and the container body 11 tilt. When the main hoisting hook of the crane equipment is hooked onto the locking portion 13 to hoist the container body 11, the fastening portion 400 may be released from the protrusion 12 by the force of hoisting or may be released from the fastening portion 400 under the control of the control unit 900. Therefore, the container body 11 may be lifted away from the mounting ring 310.

[0085] When the container 10 is placed on the placement unit 300, the tilting unit 500 generates a rotational force under the control of the control unit 900 to tilt the placement unit 300, thereby tilting the container 10. At this time, the tilting of the container 10 allows the first molten material M1 to be discharged from the container 10. In addition, the tilting unit 500 controls the tilting angle under the control of the control unit 900, thereby adjusting the degree to which the placement unit 300 and the container 10 are tilted.

[0086] The tilting units 500 may be arranged on both sides of the mounting unit 300 in one direction, may be supported by the main body unit 200, or may be connected to the mounting unit 300. More specifically, the tilting units 500 may face the outer surface of the connecting member 320 in one direction on both sides of the connecting member 320, may be supported on the upper surfaces of multiple base members 210, or may be connected to the outer surface of the connecting member 320. The number of tilting units 500 may also be the same as the number of connecting members 320. For example, the number of tilting units 500 may be two. The following detailed description of the tilting units 500 will be based on one tilting unit 500, for example, a tilting unit 500 arranged on the left side of the mounting unit 300. Needless to say, the content described below is equally or similarly applicable to a tilting unit 500 arranged on the right side of the mounting unit 300. On the other hand, the front of the placement unit 300 may be defined as the position where the guide member 130 is arranged, and the left and right sides of the placement unit 300 may be distinguished based on this.

[0087] The tilting unit 500 may include two or more types of reducers 530, 540 connected to each other, and a driver 520 connected to the two or more types of reducers 530, 540 and supported by the main body 200. In this case, the two or more types of reducers 530, 540 may include a gear reducer 530 connected to the driver 520 and a chain reducer 540 connecting the gear reducer 530 and the mounting unit 300.

[0088] That is, instead of increasing the reduction ratio by increasing the size of a single reducer, the tilting unit 500 may combine a gear reducer 530 and a chain reducer 540 to reduce the rotational speed of the rotational force generated by the driver 520 in multiple stages using different methods without increasing the size of each reducer. That is, the reduction in two stages using a gear reduction method and a chain reduction method may be achieved, thereby significantly increasing the reduction ratio. Furthermore, since the size of the reducers can be reduced, the capacity of the driver 520 can also be reduced in proportion to the size of the reducers. This allows the reduction ratio to be significantly increased while reducing the overall size of the tilting unit 500. The structure of the tilting unit 500 will be described in more detail below. The tilting unit 500 may include a tilting shaft member 510, a driver 520, a gear reducer 530, a chain reducer 540, a receiving member 550, and a housing 560.

[0089] The tilting shaft member 510 is rotated by receiving a rotational force from the chain reducer 540, thereby tilting the mounting unit 300. The tilting shaft member 510 may extend in one direction. One end of the tilting shaft member 510 may be disposed to penetrate one side surface, for example, the right side surface, of the housing 560 and protrude in one direction from the housing 560, or may be exposed in one direction from one side surface, for example, the right side surface, of the housing 560. The one end of the tilting shaft member 510 may be attached to an upper portion of the outer surface of the connecting member 320 of the mounting unit 300. The other end of the tilting shaft member 510 may extend in one direction inside the housing 560. Furthermore, the tilting shaft member 510 may have an intermediate portion connecting the one end and the other end, and this intermediate portion may be rotatably supported by the receiving member 550 inside the housing 560. The tilting shaft member 510 may be disposed at the height of the center of gravity of the container 10 or may be aligned with the center of gravity of the container 10. Rotation of the tilting shaft member 510 allows the connecting member 320 to rotate in the same manner as the tilting shaft member 510, and this rotation allows the mounting ring 310 and the container 10 to tilt.

[0090] The driver 520 generates a rotational force and supplies the rotational force to the gear reducer 530. The driver 520 may include, for example, a motor. Here, the motor may be an inverter-controlled motor. The driver 520 is operated by receiving power and can generate a rotational force. Needless to say, the type of driver 520 and the method of generating the rotational force may be various. The operation of the driver 520 may be controlled by the control unit 900. The driver 520 may be disposed apart from the tilting shaft member 510 in another direction. That is, the driver 520 may not be directly and coaxially connected to the tilting shaft member 510. This may further reduce the overall size of the tilting unit 500.

[0091] The gear reducer 530 serves to primarily reduce the rotational speed of the rotational force generated in the driver 520. The gear reducer 530 may be connected to the driver 520 so as to primarily reduce the rotational speed of the rotational force of the driver 520. The gear reducer 520 may include a gear box 531, a plurality of gears 532 disposed inside the gear box 531 and coupled to each other, and a gear output end 533 connected to the plurality of gears 532, spaced apart from the tilting shaft member 510 in the other direction, and disposed to penetrate the gear box 531 in one direction. Meanwhile, the number of gears 532 and the coupling structure of the plurality of gears 532 for reducing the rotational speed of the rotational force may vary. For example, the number of gears and the coupling structure of the plurality of gears 532 may be such that the rotational speed input at 1,300 rpm from the driver 520 can be reduced to 1 rpm and output to the gear output end 533. Of course, this reduction ratio is merely an example, and the reduction ratio of the gear reducer 530 may vary widely.

[0092] On the other hand, the gear output end 533b of the gear reducer 530 may be located at a lower height than the tilting shaft member 510. Therefore, the tilting shaft member 510, which has a relatively large diameter, can stably support the load of the chain member 543 of the chain reducer 540 at a higher height than the gear output end 533, which has a relatively small diameter. This reduces the load on the gear output end 533.

[0093] The chain reducer 540 serves to secondarily reduce the rotational speed of the rotational force output from the gear reducer 530 and transmit the rotational force to the tilting shaft member 510. Therefore, the chain reducer 540 may be disposed between the gear reducer 530 and the tilting shaft member 510 so as to secondarily reduce the rotational speed of the gear reducer 530 and transmit the rotational force to the tilting shaft member 510.

[0094] The chain reducer 540 may include a primary gear member 541 attached to the outer peripheral surface of the other end of the tilting shaft member 510, a secondary gear member 542 attached to the outer peripheral surface of the gear output end 533 and having an outer diameter smaller than that of the primary gear member 541, and a chain member 543 arranged to connect the primary gear member 541 and the secondary gear member 542.

[0095] When the gear output end 533 rotates, the secondary gear member 542 can be rotated in the same manner as the gear output end 533. The chain member 543 is rotated in a circular manner along a part of the outer circumferential surface of the gear output end 533 and a part of the outer circumferential surface of the tilting shaft member 510 by the rotation of the secondary gear member 542, thereby rotating the primary gear member 541. The primary gear member 541 is rotated by the circular rotation of the chain member 543, thereby rotating the tilting shaft member 510.

[0096] The gear ratio between the primary gear member 541 and the secondary gear member 542 may be various. For example, the gear ratio may be such that the rotational speed of the rotational force input from the gear output end 533 at 4800 rpm can be reduced to 1 rpm and output to the tilting shaft member 510. Needless to say, such a reduction ratio is merely an example, and the reduction ratio of the chain reducer 540 may be various.

[0097] The receiving member 550 serves to rotatably support the tilting shaft member 510 inside the housing 560. The receiving member 550 may extend in the vertical direction, and its lower end may be supported on the lower surface of the housing member 560, with the tilting shaft member 510 supported on its upper end. In this case, a bearing assembly may be provided on the upper end of the receiving member 550, and the tilting shaft member 510 may be rotatably supported by the bearing assembly.

[0098] The housing 560 can protect at least a portion of the tilting shaft member 510, the driver 520, the gear reducer 530, the chain reducer 540, and the receiving member 550 from the surrounding environment. The housing 560 can also form the outer shape of the tilting unit 500. The housing 560 can be arranged so that one end of the tilting shaft member 510 passes through it, and can accommodate the driver 520, the gear reducer 530, the chain reducer 540, and the receiving member 550 inside.

[0099] The weight measuring unit 600 serves to measure the weight of the first molten material M1 inside the container 10 and output the measured weight value to the control unit 900. The weight measuring unit 600 can measure the weight in real time and output the measured weight value to the control unit 900 in real time. In addition, the weight value measured by the weight measuring unit 600 can be used by the control unit 900 to adjust the tilting angle of the tilting unit 500. Needless to say, the weight measuring unit 600 can simultaneously measure the weight of the first molten material M1 inside the container 10, the weight of the container 10 containing the first molten material M1, the weight of the placement unit 300 on which the container 10 is placed, the weight of the tilting unit 500 on which the placement unit 500 is supported, and the weight of the main body 200 on which the tilting unit 500 is supported, and output the measured weight values ​​to the control unit 900. In the following, the weight measuring unit 600 will be described based on the case where the weight measuring unit 600 measures the total weight from the first melt M1 to the main body 100.

[0100] The weight measuring unit 600 may be equipped with a high-capacity load cell that can measure the weight of a heavy object up to approximately 140 tons. The weight measuring units 600 may be arranged at at least four positions spaced apart horizontally from the center of the mounting unit 300. The weight measuring units 600 may also be attached to a plurality of positions on the lower part of the main body unit 200. Specifically, a plurality of weight measuring units 600 may be attached to the lower part of each of a plurality of base members 210.

[0101] The angle measuring unit 700 can measure the angle of the mounting unit 300 and output the measured angle value to the control unit 900. Here, the angle of the mounting unit 300 may be the same as the angle of the container 10. That is, the angle of the mounting unit 300 measured by the angle measuring unit 700 may be the angle of the container 10. On the other hand, the angle measuring unit 700 may include, for example, a digital goniometer. Needless to say, the angle measuring unit 700 may be of various types, such as an analog goniometer or an optical goniometer.

[0102] The angle measuring unit 700 may be disposed below the rotation center of the mounting unit 300, on either one or both peripheries of the top surface of the mounting ring 310, in the other direction. The angle measuring unit 700 defines the angle when the top surface of the mounting ring 310 is parallel to the horizontal as 0°, and measures the angle formed by the top surface of the mounting ring 310 in the other direction, for example, the front-to-rear direction, as the angle of the mounting unit 300, and outputs the measured angle value. Needless to say, the angle measuring unit 700 may measure angles in a variety of ways. For example, the angle measuring unit 700 may measure the angle formed by the top surface of the base member 210 and the top surface of the mounting ring 310 in the other direction, for example, the front-to-rear direction, as the angle of the mounting unit 300, and output the measured angle value.

[0103] The control unit 900 can control whether or not the tilting unit 500 is operated depending on whether a container 10 is placed on the placement unit 300. The control unit 900 can also control the tilting angle of the tilting unit 500 using a weight value measured by the weight measuring unit 600. In this case, the control unit 900 can control the tilting angle of the tilting unit 500 using either a sum or an average value of weight values ​​measured at multiple positions by the weight measuring unit 600. Here, the control unit 900 can determine the angle of the placement unit 300 measured by the angle measuring unit 700 as the angle of the container 10, and can control the tilting angle of the tilting unit 500 based on the determined angle of the container 10.

[0104] The control unit 900 may include an input device 910 into which a reference amount is input, a calculator 920 that calculates either the sum or average of weight values ​​measured at multiple positions and uses the calculated value to calculate the discharge amount of the first molten material M1 to be discharged from the container 10, and a tilt controller 930 that compares the reference amount previously input into the input device 910 with the discharge amount calculated by the calculator 920 and increases or decreases the tilt angle based on the comparison result.

[0105] The input device 910 may include a control computer capable of executing a program. The input device 910 may be capable of inputting, outputting, and storing data from an external device. The input device 910 may be capable of transmitting and receiving data to and from the calculator 920 and the tilting controller 930. The reference amount input to the input device 910 may be a predetermined weight value smaller than the discharge amount of the first molten material M1 to be discharged from the container 10. For example, if 100 tons of the first molten material M1 must be discharged from the container 10, the reference amount may be set to 90 to 80 tons, and the set reference amount may be input to the input device 910. Here, the values ​​of the target discharge amount and the reference amount are merely examples, and the values ​​of the discharge amount and the reference amount may have various values ​​depending on the amount and state of the first molten material M1 and the amount and state of the second molten material M2. In this case, the state may refer to the content of impurity elements in the melt. Needless to say, the state may have a wide variety of meanings, such as the temperature of the melt, the content of the main component contained in the melt, and the like.

[0106] The calculator 920 may be a control terminal capable of electronic calculation. Needless to say, the type of calculator 920 may be various. Furthermore, the calculator 920 may be mounted on the input device 910. Furthermore, the calculator 920 may add up the weight values ​​output in real time from multiple (e.g., four) weight measuring units 600 for each time period and sequentially output the results as a calculated value. The accumulated decrease in the calculated value may be calculated as the discharge amount of the first molten material M1. For example, if the calculated values ​​from the first to fourth time points are output as 100 tons, 99 tons, 97 tons, and 96 tons, the discharge amount at the first time point may be calculated as 0 tons, the discharge amount at the second time point as 1 ton, the discharge amount at the third time point as 3 tons, and the discharge amount at the fourth time point as 4 tons. Needless to say, the method for calculating the discharge amount of the first molten material M1 from the four weight values ​​output in real time by the calculator 920 may be various.

[0107] The tilt controller 930 may be a type of programmable logic controller (PLC). Needless to say, the type of tilt controller 930 may be various. The tilt controller 930 can control the operation of the tilting unit 500 to gradually increase the tilt angle of the tilting unit 500 when the discharge amount of the first melt M1 determined by the calculator 920 is smaller than the reference amount input from the input unit 910. Furthermore, the tilt controller 930 can control the operation of the tilting unit 500 to gradually decrease the tilt angle of the tilting unit 500 when the discharge amount of the first melt M1 determined by the calculator 920 is equal to or greater than the reference amount input from the input unit 910. The tilt controller 930 controls the tilting of the container 10 so that the first melt M1 can be stably discharged, and before the discharged amount of the first melt M1 reaches a target discharge amount, the tilting angle of the tilting unit 500 is gradually decreased to gradually return the container 10, and when the discharged amount of the first melt M1 reaches the target discharge amount, the container 10 can be returned to a tilting angle that prevents the first melt M1 from being discharged from the container 10. This allows an accurate amount of the first melt M1 to be discharged.

[0108] Although the present invention has been described above, the present invention can be configured in a variety of ways, including the following other embodiments.

[0109] A tilting device according to another embodiment of the present invention will now be described.

[0110] In this case, the above-described embodiment of the present invention will be referred to as a first embodiment, and the other embodiment described below will be referred to as a second embodiment.

[0111] In addition, the second embodiment of the present invention will be described in detail below, focusing on features that distinguish it from the first embodiment described above, and duplicated descriptions will be omitted or briefly described.

[0112] The tilting device according to the second embodiment of the present invention is capable of discharging molten material from a container 10, and comprises a main body 200, a mounting section 300 arranged on the top of the main body 200 so that the container 10 can be placed on it, a tilting section 500 arranged on the main body 200 so that the mounting section 300 can be tilted and connected to the mounting section 300, and damper sections 800 arranged on both sides of the tilting section 500 and attached to the bottom of the main body 200 so that they can absorb impacts applied from the container 10 and maintain the horizontality of the main body 200.

[0113] In addition, the tilting device according to the second embodiment of the present invention may be provided with a main body receiving section 100 which has an interior that opens horizontally to allow passage of a transport vehicle 20 for receiving and transporting the molten material from the container 10, is arranged below the main body section 200 to separate the main body section 200 from the floor surface on which the transport vehicle 20 runs, and has a guide member 130 for guiding the molten material, and a fastening section 400 which is arranged on the upper surface of the loading section 300 opposite the tilting section 500 and can fasten the container 10.

[0114] Furthermore, the tilting device according to the second embodiment of the present invention may include weight measuring units 600 attached to a plurality of positions on the lower part of the main body 100, an angle measuring unit 700 attached to the placement unit 300 so as to face the tilting unit 500, and a control unit 900 that can control whether or not the tilting unit 500 is operated depending on whether a container 10 is placed on the placement unit 300 and can control the tilting angle of the tilting unit 500 using the weight value measured by the weight measuring unit 600. Here, the control unit 900 can determine the angle of the container 10 from the angle of the placement unit 300 measured by the angle measuring unit 700, and can control the tilting angle of the tilting unit 500 based on the determined angle of the container 10.

[0115] In this case, the main body receiving portion 100, the main body portion 200, the mounting portion 300, the fastening portion 400, the weight measuring portion 600, the angle measuring portion 700 and the control portion 900 may be the same components as the main body receiving portion, the main body portion, the mounting portion, the fastening portion, the weight measuring portion, the angle measuring portion and the control portion of the tilting device in the first embodiment of the present invention described above, and therefore their explanation will be omitted here.

[0116] The tilting section 500 and the damper section 800 will be described below.

[0117] The tilting unit 500 generates a rotational force to tilt the placement unit 300, thereby tilting the container 10. The tilting unit 500 also controls the tilting angle under the control of the control unit 900, thereby adjusting the degree to which the container 10 is tilted.

[0118] The tilting units 500 may face the outer surface of the connecting member 320 in one direction on both sides of the connecting member 320, and may be supported on the upper surfaces of the plurality of base members 210, respectively, or may be connected to the outer surface of the connecting member 320. The number of tilting units 500 may also be the same as the number of connecting members 320. The tilting unit 500 may include a tilting shaft member 510, a driver 520, a driving force transmitter (not shown), a receiving member 550, and a housing 560.

[0119] The tilting shaft member 510 is rotated by receiving a rotational force from the chain reducer 540, and serves to tilt the mounting unit 300. The tilting shaft member 510 may extend in one direction. The tilting shaft member 510 may also be disposed at the height of the center of gravity of the container 10, or may be aligned with the center of gravity of the container 10.

[0120] One end of the tilting shaft member 510 may be disposed to penetrate one side surface of the housing 560 and protrude from the housing 560, or may be attached to an upper portion of the outer surface of the connecting member 320 of the mounting unit 300. The other end of the tilting shaft member 510 may extend in one direction inside the housing 560. Furthermore, the tilting shaft member 510 may have an intermediate portion connecting the one end and the other end, and this intermediate portion may be rotatably supported by the receiving member 550 inside the housing 560.

[0121] The driver 520 serves to generate a rotational force and supply the rotational force to the gear reducer 530. The driver 520 may be disposed away from the tilting shaft member 510 in another direction, for example, in the front-rear direction.

[0122] The driving force transmitter may be disposed to connect the output end of the driver 520 and the other end of the tilting shaft member 510. The driving force transmitter may have a wide variety of rotational force transmission structures as long as the rotational force output from the output end of the driver 520 is sufficient to rotate the other end of the tilting shaft member 510. For example, a chain drive structure may be used as the driving force transmitter.

[0123] The receiving member 550 serves to rotatably support the tilting shaft member 510 inside the housing 560. The receiving member 550 may extend in the vertical direction, and its lower end may be supported on the lower surface of the housing member 560, and the tilting shaft member 510 may be supported on its upper end.

[0124] The housing 560 can protect at least a portion of the tilting shaft member 510, the driver 520, and the driving force transmission and receiving member 550 from the surrounding environment. The housing 560 can also form the outer shape of the tilting unit 500. The housing 560 can accommodate the driver 520, the driving force transmission and receiving member 550 inside.

[0125] The damper unit 800 can buffer the impact applied from the container 10. Furthermore, the damper unit 800 can maintain the horizontality of the main body unit 200. The damper unit 800 may be attached to a plurality of positions on the lower part of the main body unit 200. Specifically, two or more damper units 800 may be arranged for each weight measuring unit 600, and each damper unit 800 may be arranged on both sides in the other direction, for example, the front-rear direction, for each weight measuring unit.

[0126] The damper unit 800 may have an elastic assembly to elastically support the main body 200 in the vertical direction. Here, the elastic assembly may include a leaf spring assembly. The damper unit 800 can prevent an impact applied from the container 10 to the mounting unit 300 when the container 10 is mounted on or removed from the mounting unit 300 from being transmitted to the weight measuring unit 600 via the main body 200. This prevents the weight measuring unit 600 from being damaged by the impact when measuring the weight. The damper unit 800 can also prevent an impact caused by a change in weight due to tilting of the container 10 and the discharge of the first molten material M1 from being transmitted to the weight measuring unit 600 via the main body 200.

[0127] Furthermore, the damper section 800 can uniformly elastically support the lower surface of the main body section 200 during tilting of the container 10 and discharge of the first molten material M1 so that the main body section 200 remains horizontal relative to the upper surface of the main body receiving section 100, thereby preventing tilting of the main body section 200.

[0128] Hereinafter, a tilting device according to yet another embodiment of the present invention, i.e., a third embodiment, will be described. Hereinafter, the third embodiment will be described with emphasis on features that distinguish it from the first and second embodiments of the present invention, and overlapping descriptions will be omitted.

[0129] In the tilting device according to the second embodiment of the present invention, the tilting unit includes a driving force transmission device. However, in the tilting device according to the third embodiment of the present invention, the tilting unit 500 may include two or more types of reducers connected to each other instead of the driving force transmission device. More specifically, the tilting unit 500 according to the third embodiment of the present invention may include a tilting shaft member 510, a driver 520, a gear reducer 530, a chain reducer 540, a receiving member 550, and a housing 560. In this case, the tilting shaft member 510, the driver 520, the gear reducer 530, the chain reducer 540, the receiving member 550, and the housing 560 may be the same components as the tilting shaft member, the driver, the gear reducer, the chain reducer, the receiving member, and the housing of the tilting unit according to the first embodiment of the present invention, and therefore, description thereof will be omitted.

[0130] That is, the tilting device according to the third embodiment of the present invention comprises a main body receiving portion 100, a main body portion 200, a mounting portion 300, a fastening portion 400, a tilting portion 500, a weight measuring portion 600, an angle measuring portion 700, a damper portion 800 and a control portion 900, and in this case, the tilting portion 500 may have the same configuration as the tilting portion of the tilting device according to the first embodiment of the present invention, and the rest except for the tilting portion 500 may have the same configuration as the tilting device according to the second embodiment of the present invention.

[0131] Meanwhile, the components of the tilting device according to the first to third embodiments of the present invention can be combined and modified with each other.

[0132] 4 to 7 are operation diagrams of the tilting device according to the embodiment of the present invention.

[0133] The operation of the tilting device according to the embodiment of the present invention will be described with reference to FIGS.

[0134] 4, the first melt M1 is placed in the container 10, which is then transported to the upper side of the tilting device and placed on the placement unit 300. At this time, the initial angle θ0 of the container 10 may be, for example, 0°.

[0135] By placing the container 10, the weight W1 of the container 10 and the first molten material M1 can be distributed to the weight measuring unit 600. At this time, the total of the distributed weights W1a may be equal to the weight W1 of the container 10 and the first molten material M1.

[0136] Meanwhile, the height of the main body 200 decreases from the initial height h0 to the first height h1 due to the weight W1 of the container 10 and the first molten material M1. At this time, the damper 800 can generate an elastic force f in proportion to the height decrease Δh1, thereby elastically supporting the main body 200. At this time, the shock is absorbed and the horizontality of the main body 200 can be maintained.

[0137] 5, the control unit 900 can detect the placement of the container 10 and operate the tilting unit 500 to generate a rotational force, thereby tilting the container 10 at a first tilting angle θ1. At this time, the gear reducer 530 and the chain reducer 540 can primarily reduce the rotational speed of the rotational force to r1 and then secondarily reduce the rotational speed to r2, and the rotational force whose rotational speed has been reduced to the second order can rotate the tilting shaft member 510 to tilt the container 10. At this time, the container 10 is not tilted all at once to the first tilting angle θ1, but can be tilted stepwise in units of angles smaller than the first tilting angle θ1, with a predetermined angle retention time between each tilting angle.

[0138] As the container 10 tilts and the first molten material M1 is discharged, the weight W2 of the container 10 and the first molten material M1 decreases and can be distributed to the weight measuring unit 600. At this time, the total weight W2a distributed may be equal to the weight W2 of the container 10 and the first molten material M1.

[0139] Meanwhile, the height of the body 200 increases from the first height h1 to the second height h2 due to the weight W2 of the container 10 and the first molten material M1. At this time, the damper 800 can adjust the elastic force f in proportion to the height increase Δh2, thereby elastically supporting the body 200. At this time, impacts are absorbed and the body 200 can be maintained horizontally.

[0140] Furthermore, while the container 10 is tilted from the initial angle θ0 to the first tilting angle θ1, the position of the center of gravity C and the position of the center of rotation of the tilting shaft member 510 can coincide with each other.

[0141] The first melt M1 discharged from the container 10 can be combined with the second melt M1 inside the transport vehicle 20.

[0142] As shown in FIG. 6 , the control unit 900 can continue to operate the tilting unit 500 to generate a rotational force, tilting the container 10 at a second tilting angle θ2. The gear reducer 530 and the chain reducer 540 can first reduce the rotational speed of the rotational force by r1 and then secondarily reduce the rotational speed by r2. The rotational force, whose rotational speed has been reduced to the second order, rotates the tilting shaft member 510 to tilt the container 10. The container 10 may not be tilted to the second tilting angle θ2 all at once, but may be tilted stepwise by a unit angle, with a predetermined angle holding time between each tilting angle. For example, the container 10 may be tilted to a tilting angle greater than the first tilting angle θ1 by an amount corresponding to the first unit angle, and then the tilting angle may be held for a predetermined time. The first molten material M1 may gradually decrease as the discharge amount increases. After a predetermined time has elapsed, the container 10 may be tilted at a tilt angle that is larger than the first tilt angle θ1 by an amount corresponding to the second unit angle, and then the tilt angle may be maintained for a predetermined time. In this manner, the container 10 may be tilted stepwise up to the second tilt angle θ2, thereby stably discharging the first molten material M1.

[0143] As the container 10 tilts and the first molten material M1 is discharged, a further decrease in weight W3 of the container 10 and the first molten material M1 can be distributed to the weight measuring unit 600. At this time, the sum of the distributed weights W3a may be equal to the further decrease in weight W3 of the container 10 and the first molten material M1.

[0144] Meanwhile, the height of the body 200 increases from the second height h2 to the third height h3 due to the weight W3 of the container 10 and the first molten material M1. At this time, the damper 800 can adjust the elastic force f in proportion to the height increase Δh3, thereby elastically supporting the body 200. At this time, impacts are absorbed and the body 200 can be maintained horizontally.

[0145] Additionally, while the container 10 is tilted from the first tilting angle θ1 to the second tilting angle θ2, the position of the center of gravity c and the position of the center of rotation of the tilting shaft member 510 may coincide. Meanwhile, the angle measuring unit 700 may measure the angle at which the container 10 is tilted and transmit the measured angle value to the control unit 900. The control unit 900 may determine the tilting state of the container 10 based on the transmitted angle value and use it to control the tilting angle.

[0146] Furthermore, the first melt M1 discharged from the container 10 can be combined with the second melt M1 inside the transport vehicle 20.

[0147] Meanwhile, while the first molten material M1 is being discharged from the container 10, the discharged amount of the first molten material M1 can be determined from the sum of the weight values ​​measured in the weight measuring section 600, and the discharged amount can be compared with a reference amount, and if the discharged amount becomes equal to the reference amount, the tilting angle of the container 10 can be decreased from that point on.

[0148] 7, the control unit 900 may determine the discharge amount of the first molten material M1, and if the discharge amount is equal to a reference amount, may decrease the tilt angle of the container 10 from the second tilt angle θ2 to the third tilt angle θ3. At this time, the container 10 may be erected by an amount corresponding to the decrease in the tilt angle Δθ, thereby decreasing the discharge amount of the first molten material M1.

[0149] Needless to say, when the tilting angle is reduced, the rotational speed of the rotational force can be reduced primarily to r1 and secondarily to r2 in the gear reducer 530 and the chain reducer 540, and the rotational force whose rotational speed has been reduced to the second order rotates the tilting shaft member 510, thereby reducing the tilting angle of the container 10.

[0150] Alternatively, the container 10 may be tilted stepwise in increments of a unit angle, with a predetermined angle holding time between each tilt angle, rather than being tilted all at once by an amount corresponding to the tilt angle decrease Δθ. In this manner, the discharge rate of the first molten material M1 can be steadily reduced while the tilt angle is gradually reduced up to the third tilt angle θ3.

[0151] As the container 10 tilts and the first molten material M1 is discharged, a further decrease in weight W4 of the container 10 and the first molten material M1 can be distributed to the weight measuring unit 600. At this time, the sum of the distributed weights W4a may be equal to the further decrease in weight W4 of the container 10 and the first molten material M1.

[0152] Meanwhile, the height of the main body 200 increases from the third height h3 to the fourth height h4 due to the weight W4 of the container 10 and the first molten material M1. At this time, the damper 800 can adjust the elastic force f in proportion to the height increase Δh4, thereby elastically supporting the main body 200. At this time, impacts are absorbed and the horizontality of the main body 200 can be maintained.

[0153] Furthermore, while the container 10 is tilted from the second tilting angle θ2 to the third tilting angle θ3, the position of the center of gravity c and the position of the center of rotation of the tilting shaft member 510 can coincide with each other.

[0154] Furthermore, the first molten material M1 discharged from the container 10 can be combined with the second molten material M1 inside the transport vehicle 20. After this, the control unit 900 can continue to decrease the tilting angle of the container 10 to finish discharging the first molten material M1.

[0155] Thus, in an embodiment of the present invention, the control unit 900 uses a reference amount to gradually reduce the tilting angle of the container 10 before the discharge amount of the first molten material M1 reaches the target discharge amount, thereby enabling the first molten material M1 to be discharged in an accurate amount.

[0156] FIG. 8 is a flow chart of a melt processing method according to an embodiment of the present invention.

[0157] Hereinafter, a melt processing method according to an embodiment of the present invention will be described with reference to FIG.

[0158] A melt processing method according to an embodiment of the present invention includes the steps of placing a container 10 containing a melt, for example, a first melt M1, on a tilting device, preparing a transport vehicle 20 containing a second melt M2 different from the first melt M1 below the container 10, tilting the container 10 using the tilting device, slowing down the tilting speed of the container 10, and discharging the first melt M1 from the container 10 and loading it into the transport vehicle 20.

[0159] First, a vessel 10 containing a melt, for example, a first melt M1, is placed on a tilting device (S100). At this time, the first melt M1 may include molten steel produced in an electric furnace. The vessel 10 may also include a ladle.

[0160] That is, a first molten material M1 is produced in an electric furnace and tapped into a container 10. The container 10 containing the first molten material M1 can be transported using a crane to the upper side of a tilting device and placed on the placing part 300 (see FIG. 4). At this time, the container 10 can be fastened to the placing part 300 using a fastening part 400.

[0161] Next, a transport car 20 containing a second molten material M2 different from the first molten material M1 is prepared below the vessel 10 (S200). At this time, the second molten material M2 may contain molten iron produced in a blast furnace, and the transport car 20 may be equipped with a torpedo car.

[0162] That is, the second molten material M2 is produced in the blast furnace and tapped onto the transport car 20. The transport car 20 containing the second molten material M2 is driven to the main body receiving part 100 and parked inside the main body receiving part 100. At this time, the opening of the vessel body 21 of the transport car 20 may be opened and the transport car 20 may be positioned below the guide member 130.

[0163] Once the transport vehicle 20 is prepared below the container 10, the tilting device tilts the container 10 (S300). At this time, the control unit 900 controls the operation of the tilting unit 500 to rotate the driver 520, which then rotates the tilting shaft member 510, which in turn tilts the placement unit 300, thereby tilting the container 10 (see FIG. 5). Here, the rotation center of the tilting shaft member 510 of the tilting device may be aligned with the center of gravity C of the container 10. More specifically, multiple tilting shaft members 510 may be arranged on both sides of the container 10, and the centers of the tilting shaft members 510 may be aligned with the center of gravity C of the container 10, with a center line passing in one direction, for example, the left-right direction. In this case, the rotation center may be located on the center line.

[0164] Meanwhile, while tilting the container 10 with the tilting device, the weight of the container 10 may be measured at multiple positions of the tilting device using the weight measuring unit 600, and the tilting angle of the container 10 may be adjusted using the weight value of the container 10. In this case, the weight of the container 10 measured by the weight measuring unit 600 may be not only the weight of the first molten material M1, but also the total weight from the main body unit 200 to the tilting unit 500.

[0165] When adjusting the tilt angle of the container 10 using the measured weight values, either the sum or average of the weight values ​​measured at multiple positions can be calculated. The calculated value can be used to determine the amount of first molten material M1 discharged from the container 10. The discharged amount can be compared with a previously input reference amount, and the tilt angle can be increased or decreased based on the comparison result. That is, if the discharged amount is smaller than the reference amount, the tilt angle can be increased in stages (see FIGS. 5 and 6), and if the discharged amount is equal to or greater than the reference amount, the tilt angle can be decreased in stages (see FIG. 7). Meanwhile, while tilting the container 10, the angle at which the container 10 is tilted can be measured using the angle measurement unit 700 and the measured angle value can be transmitted to the control unit 900. The control unit 900 can control the tilt angle based on the received angle value.

[0166] Meanwhile, when tilting the container 10 by the tilting device, the tilting speed of the container 10 is decelerated (S400). Specifically, the rotational speed of the rotational force generated in the driver 520 is primarily decelerated, and the rotational speed r1 of the rotational force, which has been primarily decelerated, can be secondarily decelerated. In addition, the rotational force, whose rotational speed has been secondarily decelerated, can be transmitted to the tilting shaft member 510. Therefore, the tilting shaft member 510 can rotate at a rotational speed r2, which has been secondarily decelerated, and tilt the container 10 stably and gradually.

[0167] 3, when the rotational speed of the rotational force is primarily reduced, the rotational speed of the rotational force can be reduced at a first reduction ratio by a gear reduction method using the gear reducer 530. Furthermore, when the rotational force whose rotational speed has been primarily reduced is secondarily reduced, the rotational speed of the rotational force whose rotational speed has been primarily reduced can be reduced at a second reduction ratio greater than the first reduction ratio by a chain reduction method using the chain reducer 540.

[0168] While the container 10 is tilted by the tilting device, the first molten material M1 is discharged from the container 10 and charged into the transport vehicle 20 (S500).

[0169] That is, by tilting the vessel 10, the first molten material M1 that overflows the opening at the top of the vessel 10 toward the front side of the vessel 10 and is discharged to the bottom of the vessel 10 can be guided to the guide member 130 and charged into the vessel body 21 of the transport vehicle 20. Also, the first molten material M1 and the second molten material M2 can be combined inside the vessel body 21 to produce a third molten material with adjusted composition. The produced third molten material can be transported to a secondary refining facility or a continuous casting facility so that it can be made from high-grade steel.

[0170] Meanwhile, a melt processing method according to another embodiment of the present invention may further include a process of maintaining the horizontality of the tilting device while eliminating the impact caused by the change in weight applied to the tilting device due to the placement and tilting of the container 10 between the process of placing the container 10 containing the first melt M1 on the tilting device and the process of discharging the first melt M1 from the container 10 and loading it into the transport vehicle 20.

[0171] In the step of maintaining the horizontality of the tilting device (S600), the following steps are performed as shown in FIGS. As shown, the damper portion 800 can be used to resiliently support the main body portion 200 of the tilting device in the vertical direction at a plurality of positions in the horizontal direction of the tilting device.

[0172] Meanwhile, in a melt processing method according to still another embodiment of the present invention, the step of slowing down the tilting speed of the container 10 while tilting the container 10 by the tilting device may be omitted.

[0173] The above-described embodiments of the present invention are intended to be illustrative of the present invention and not to limit the present invention. It should be noted that the configurations and methods disclosed in the above-described embodiments of the present invention may be combined and modified in various ways by combining or interchanging with each other, and such modified embodiments are also considered to be within the scope of the present invention. In other words, the present invention may be embodied in various different forms within the scope of the claims and the technical concepts equivalent thereto, and those skilled in the art to which the present invention pertains should understand that various embodiments are possible within the scope of the technical concepts of the present invention. [Explanation of symbols]

[0174] 100 Main body receiving part 200 Main body 300 Placement section 400 Fastening part 500 Tilt part 510 Tilting shaft member 520 Driver 530 Gear Reducer 540 Chain Reducer 600 Weight measurement unit 700 Angle measurement unit 800 damper section 900 control section

Claims

1. A tilting device capable of discharging melt from a container, a main body; a mounting portion disposed on an upper portion of the main body portion so that the container can be mounted thereon; a tilting unit that is disposed on the main body portion so as to be able to tilt the placement unit, is connected to the placement unit, and has a reducer; A tilting device comprising:

2. 2. The tilting device according to claim 1, wherein the tilting section has two or more types of reducers connected to each other.

3. The tilting portion is a tilting shaft member disposed at a height of a center of gravity of a container placed on the placement portion and connected to the placement portion; a driver disposed apart from the tilting shaft member in a direction intersecting the extending direction of the tilting shaft member; a gear reducer connected to the driver so as to primarily reduce the rotational speed of the driver; a chain reducer disposed between the gear reducer and the tilting shaft member so as to secondarily reduce the rotational speed of the gear reducer and transmit the rotational speed to the tilting shaft member; a housing through which the tilting shaft member passes and which accommodates the driver, the gear reducer, and the chain reducer; 3. The tilting device according to claim 2, further comprising:

4. the gear reducer includes a plurality of gears coupled to each other, and a gear output end connected to the plurality of gears, spaced apart from the tilting shaft member in the intersecting direction, and disposed in the extending direction; 4. The tilting device according to claim 3, wherein the chain reducer comprises: a primary gear member attached to an outer peripheral surface of the tilting shaft member; a secondary gear member attached to an outer peripheral surface of the gear output end and having an outer diameter smaller than that of the primary gear member; and a chain member arranged to connect the primary gear member and the secondary gear member.

5. 5. The tilting device according to claim 4, wherein the gear output end is disposed at a height lower than that of the tilting shaft member.

6. a main body; a mounting portion disposed on an upper portion of the main body portion so that a container can be placed thereon; a tilting section disposed on the main body section so as to tilt the placement section and connected to the placement section; damper sections disposed on both sides of the tilting section, which are attached to a lower portion of the main body section to absorb impacts applied from the container and maintain the horizontality of the main body section; A tilting device comprising:

7. The tilting unit has a reducer so that the tilting speed of the container can be adjusted, 7. The tilting device according to claim 6, wherein the damper portion has an elastic assembly for elastically supporting the main body portion in the vertical direction.

8. a weight measuring unit attached to a plurality of positions on the lower part of the main body; a control unit that can control whether or not the tilting unit is operated depending on whether or not the container is placed on the placement unit, and that can control the tilting angle of the tilting unit using a weight value measured by the weight measuring unit; 8. The tilting device according to claim 1, further comprising:

9. the weight measuring unit includes a load cell and is disposed at a plurality of positions spaced apart from each other in a horizontal direction around the placing unit; The tilting device according to claim 8, characterized in that the control unit is capable of controlling the tilting angle of the tilting unit using either a sum or an average value of weight values ​​measured at multiple positions by the weight measuring unit.

10. a weight measuring unit attached to a plurality of positions on the lower part of the main body; a control unit that can control whether or not the tilting unit is operated depending on whether or not the container is placed on the placement unit, and that can control the tilting angle of the tilting unit using a weight value measured by the weight measuring unit; Equipped with 8. The tilting device according to claim 6, wherein the damper section is provided for each of the weight measuring sections, and is provided on both sides of each of the weight measuring sections.

11. an angle measuring unit attached to the placement unit so as to face the tilting unit; The tilting device according to claim 8, characterized in that the control unit determines the angle of the container from the angle of the placement unit measured by the angle measurement unit, and is capable of controlling the tilting angle of the tilting unit based on the determined angle of the container.

12. the main body portion includes a plurality of base members that are spaced apart from each other in one direction in which the placement portion and the tilting portion face each other and extend in another direction that intersects with the one direction, The tilting device according to any one of claims 1 to 7, characterized in that the tilting portions are respectively attached to the upper surfaces of the plurality of base members, and the placement portion is attached so as to connect the respective tilting portions between the respective tilting portions.

13. The placement section is a mounting ring having a central portion that is open in the vertical direction so that at least a lower portion of the container can be fitted therein, and a protrusion on an outer peripheral surface of the container can be engaged on the upper surface of the mounting ring; connecting members attached to both sides of the mounting ring in the one direction, facing the tilting portion in the one direction, and rotatably connected to the tilting shaft member of the tilting portion; Equipped with 13. The tilting device according to claim 12, wherein the rotation center of the connecting member and the center of gravity of the container placed on the mounting ring are aligned in the one direction.

14. The tilting device according to claim 12, further comprising a fastening portion, which is disposed on the upper surface of the placement portion so as to face the tilting portion in the other direction and to which the container can be fastened.

15. placing the container containing the melt on a tilting device; providing a carrier containing a melt different from the melt below the vessel; tilting the container with the tilting device; slowing down the tilting speed of the container; discharging the melt from the vessel into the transport vehicle; A melt processing method comprising:

16. The step of tilting the container comprises: rotating the driver of the tilting device; a step of rotating the tilting shaft member of the tilting device by the driver; tilting the container using the tilting shaft member; Including, The step of slowing down the tilting speed of the container includes: a step of primarily reducing the rotational speed of the rotational force generated by the driver; secondarily reducing the rotational speed of the rotational force; transmitting the rotational force, the rotational speed of which is secondarily reduced, to the tilting shaft member; 16. The melt processing method of claim 15, comprising:

17. The step of primarily slowing down includes: reducing the rotational speed of the rotational force according to a first reduction ratio by a gear reduction method; The secondary deceleration step includes: The molten material processing method of claim 16, further comprising a step of reducing the rotational speed of the rotational force, which has been primarily reduced by a chain reduction method, according to a second reduction ratio greater than the first reduction ratio.

18. placing the container containing the melt on a tilting device; providing a carrier containing a melt different from the melt below the vessel; tilting the container with the tilting device; discharging the melt from the vessel into the transport vehicle; a process of eliminating an impact caused by a change in weight applied to the tilting device due to the placement and tilting of the container during the process from the placement process to the loading process, and maintaining the horizontality of the tilting device; A melt processing method comprising:

19. The method further includes the step of slowing down the tilting speed of the container; The step of maintaining the horizontality of the tilting device includes:

20. The method of claim 18, further comprising the step of vertically and elastically supporting the body of the tilting device at a plurality of positions in the horizontal direction of the tilting device.

20. The process of tilting the container by the tilting device includes:

20. A method according to any one of claims 15 to 19, including the step of aligning the centre of rotation of the tilting device with the centre of gravity of the vessel.

21. The step of aligning the center of rotation with the center of gravity of the container includes:

21. The melt processing method of claim 20, further comprising the step of aligning tilting shaft members of the tilting device with the center of gravity of the vessel on both sides of the vessel.

22. The process of tilting the container by the tilting device includes: weighing the container at a plurality of positions on the tilting device; adjusting the tilt angle of the container using the weight value of the container; 21. The melt processing method of claim 20, comprising:

23. The step of adjusting the tilt angle of the container using the weight value of the container includes: a step of calculating either a sum or an average of the weight values ​​measured at the plurality of positions; determining the amount of melt discharged from the vessel using the calculated value; comparing the discharge amount with a previously input reference amount and increasing or decreasing the tilt angle based on the comparison result; 23. The melt processing method of claim 22, comprising:

24. The process of increasing or decreasing the tilt angle includes: increasing the tilt angle stepwise if the discharge amount is smaller than the reference amount; if the discharge amount is equal to or greater than the reference amount, gradually decreasing the tilt angle; 24. The melt processing method of claim 23, comprising:

25. the melt comprises molten steel produced in an electric furnace; the melt different from the melt comprises hot metal produced in a blast furnace; the vessel comprises a ladle; 20. A melt processing method according to any one of claims 15 to 19, wherein the transport vehicle comprises a torpedo car.

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