Melt conveying apparatus and melt conveying method

Abstract

A melt transport apparatus according to an embodiment of the present application includes a container having an internal space in which a melt can be accommodated and an opening through which the melt can be input / output, a cover portion having a cover member capable of closing the opening and positioned at a top of the container so as to be movable forward / backward with respect to the opening, and a support portion having a rotating body movable forward / backward with respect to the cover portion at a bottom of the cover portion so that the support portion can be in contact with the cover portion. Accordingly, according to the embodiment of the present application, the opening of the container can be easily opened / closed in a limited space. In addition, when the opening is opened / closed by moving the cover portion, drooping or tilting of the cover portion can be prevented. Accordingly, the cover portion can be easily moved and at least a portion of the opening can be prevented from being exposed to the outside. Accordingly, a decrease in temperature of the melt inside the container can be prevented or suppressed.

Description

Technical Field

[0001] This disclosure relates to molten material transport equipment and molten material transport methods, and more particularly, to molten material transport equipment and molten material transport methods capable of easily opening and closing containers containing molten material. Background Technology

[0002] Molten iron drawn from the blast furnace is loaded into the container of a torpedo car. The torpedo car is then moved to a work site where impurities in the molten iron are removed, namely the steelmaking plant. Here, as the torpedo car moves to the steelmaking plant, the opening is closed using a cover to prevent the temperature of the molten iron from dropping.

[0003] On the other hand, as the torpedo car moves to the steel manufacturing plant, secondary materials such as heating agents and desulfurizing agents are repeatedly fed into the molten iron. Therefore, the operation of opening and closing the torpedo car's openings as it moves to the steel manufacturing plant needs to be repeated multiple times.

[0004] However, as a non-powered carrier, the torpedo vehicle lacks the power to move the covering to open and close the openings. Therefore, a separate device from the torpedo vehicle is used to raise or lower the covering to open and close the openings.

[0005] However, due to the numerous devices installed along the path the torpedo car moves, the space around the torpedo car is insufficient. In particular, the space above the torpedo car is extremely narrow. Therefore, devices for moving the covers are almost not located above the torpedo car, making it difficult to open and close openings by raising and lowering the covers. Furthermore, because of this, repeatedly opening and closing openings is extremely difficult when the torpedo car moves to the steel manufacturing plant.

[0006] (Related technical documents)(Patent document 1) Korean Patent Registration No. 10-0701394. Summary of the Invention

[0007] Technical topics

[0008] This disclosure provides a molten material transport device and a method for transporting molten material with a container that is easy to open and close.

[0009] This disclosure provides a molten material transport device and a molten material transport method that allow for easy opening and closing of containers within a limited space.

[0010] This disclosure provides a molten material transport device and a molten material transport method that can prevent the cover unit of the container from deflecting when it is opened and closed.

[0011] Technical solution

[0012] According to an exemplary embodiment, a molten material transport device includes: a container having an internal space for containing molten material and an opening for the molten material to enter and exit; a covering unit having a covering member configured to close the opening and configured to move forward and backward relative to the opening; and a support unit having a rotating body disposed below the covering unit and movable forward and backward relative to the covering unit to contact the covering unit.

[0013] The molten material transport device may also include forward and backward drive units connected to the lower part of the covering unit at one side of the container to move the covering unit forward and backward. A support unit is disposed between the forward and backward drive units and the container and is inclined upward, such that the distance to the opening gradually decreases in the direction toward the rotating body.

[0014] The support unit may include: a support member having one end connected to the rotating body facing the cover unit, and the support member being inclined upward such that the distance to the opening gradually decreases in the direction toward one end; and a support member drive source connected to the other end of the support member to move the support member forward and backward relative to the cover unit.

[0015] The molten material transport equipment may also include a support height adjustment unit connected to the support unit to raise and lower the support unit.

[0016] The molten material transport device may further include: a lifting and lowering drive unit connected to the lower portion of a forward and backward drive unit to lift and lower the forward and backward drive units; and a first housing and a second housing respectively connected to two ends in the longitudinal direction of the container, wherein the forward and backward drive unit and the lifting and lowering drive unit may be disposed on the upper portion of the first housing, and a support unit and a support height adjustment unit may be disposed on the side portion of the first housing.

[0017] The molten material transport device may also include a power supply unit disposed on the first housing to provide power to each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit, wherein the power supply unit may include a battery.

[0018] The molten material transport equipment may also include a control unit configured to control the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit by receiving command signals input from an external source wirelessly.

[0019] The molten material transport device may further include: a control unit disposed on the first housing for controlling the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit; and an operation button disposed on the first housing for transmitting command signals to the control unit.

[0020] The molten material transport device may also include an operating handle disposed on the first housing to control the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit.

[0021] According to another exemplary embodiment, a method for transporting molten material includes: a molten material transport device in which the molten material is contained in a container; and opening and closing an opening of the container, wherein opening and closing the opening includes: moving a covering unit forward or backward relative to the opening; and providing primary support for the forward or backward moving covering unit at a lower side of the covering unit.

[0022] The opening and closing of the opening may include: raising or lowering the cover unit after it has moved forward or backward; and providing secondary support for the raised or lowered cover unit at its underside.

[0023] The primary and secondary supports may include a rotating body positioned below the cover unit that allows contact with the cover unit, and the primary support may include a rotating body that allows rotation by force of the cover unit moving forward or backward.

[0024] Allowing the rotating body to contact the covering unit may include moving the rotating body forward or backward relative to the covering unit, and moving the rotating body forward or backward relative to the covering unit may include moving the rotating body forward or backward in an inclined manner such that the distance between the rotating body and the opening gradually decreases as the height of the rotating body increases.

[0025] Allowing a rotating body to contact a covering unit may include allowing the rotating body to contact areas other than the area facing the opening when a portion of the covering unit is configured to face the opening so that the opening is closed.

[0026] The forward or backward movement of the rotating body, the primary and secondary supports, and the lifting and lowering of each can be operated using electricity.

[0027] The forward or backward movement of the rotating body, the primary and secondary supports, and the lifting and lowering of each of these can be achieved by generating command signals via a remote controller that is separately located from the molten material transport equipment and wirelessly connected to the cover unit and the rotating body.

[0028] Beneficial effects

[0029] According to an exemplary embodiment, the opening of the container can be easily opened and closed within a limited space.

[0030] Furthermore, the deflection or tilting of the covering unit can be prevented when the opening is opened and closed by moving the covering unit. Therefore, the covering unit can be moved easily, and at least a portion of the opening can be prevented from being exposed to the outside. Thus, a drop in temperature of the molten material in the container can be prevented or suppressed.

[0031] Furthermore, the opening can be opened and closed without being connected to an external power source, and the opening can be freely opened and closed when necessary. Attached Figure Description

[0032] Figure 1 This is a front view of a molten material transport device according to an exemplary embodiment.

[0033] Figure 2 It's a diagram. Figure 1 A magnified 3D view of part 'A'.

[0034] Figure 3 This is a cross-sectional view illustrating a portion of a molten material transport device according to an exemplary embodiment.

[0035] Figures 4 to 6 This is a view used to illustrate the operation of the covering unit and support unit of the molten material transport device according to an exemplary embodiment, and shows a portion of the molten material transport device.

[0036] Figure 7 It is a graph showing the temperature change over time as molten iron is moved by a molten material transport device according to an exemplary embodiment and a comparative example. Detailed Implementation

[0037] In the following, exemplary embodiments will be described in detail with reference to the accompanying drawings. However, the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the dimensions of layers and regions are enlarged for clarity of illustration. The same reference numerals always refer to the same elements.

[0038] This disclosure relates to a molten material transport device capable of easily opening and closing an opening defined in a container containing molten material. More particularly, this disclosure relates to a molten material transport device capable of easily opening and closing the opening within a limited space and preventing deflection of the covering unit of the container during opening and closing.

[0039] Here, the molten material can be molten iron. Furthermore, the molten material transport equipment can transport molten iron drawn from facilities that produce molten iron, such as blast furnaces. More specifically, in the field of steelmaking technology, the molten material transport equipment can be referred to as a torpedo car.

[0040] Figure 1 This is a front view of a molten material transport device according to an exemplary embodiment. Figure 2 It's a diagram. Figure 1 A magnified 3D view of part 'A'; Figure 3 This is a cross-sectional view illustrating a portion of a molten material transport device according to an exemplary embodiment.

[0041] Reference Figures 1 to 3 According to an exemplary embodiment, a molten material transport device includes: a container 1000 having an internal space for receiving molten material M and an opening 1100 for the molten material M to enter and exit; a covering unit 2000 including a covering member 2100 capable of opening and closing the opening 1100 and disposed above the container 1000 and movable forward and backward relative to the opening 1100; and a support unit 3000 disposed below the covering portion 200 and raised and lowered to support the covering unit 2000 or release the supporting force.

[0042] In addition, the molten material transport device includes: a forward and backward drive unit 4000 that moves the covering unit 2000 forward and backward; a lifting and lowering drive unit 5000 that raises the forward and backward drive unit 4000; and a support height adjustment unit 6000 that raises the support unit 3000.

[0043] In addition, the molten material transport device includes: a first housing 8100a and a second housing 8100b, which are disposed on both sides of the container 1000 in the longitudinal direction (X-axis direction); a first rotary drive unit 8200a and a second rotary drive unit 8200b, which are connected to the two ends of the container 1000 in the longitudinal direction to provide rotary drive force; a first moving unit 8300a and a second moving unit 8300b, which are respectively connected to the lower portion of the first housing 8100a and the lower portion of the second housing 8100b; and a support 8400, which is disposed on the first housing 8100a to support the forward and backward drive unit 4000 and the lifting and lowering drive unit 5000.

[0044] As in Figure 3 As illustrated, the molten material transport device includes: a control unit 7100 disposed in a first housing 8100a for controlling the operation of each of the forward and backward drive unit 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000; and a rechargeable battery-type power supply unit 7200 disposed in the first housing 8100a. Here, the power supply unit 7200 may be a unit that applies power to drive the forward and backward drive unit 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000.

[0045] The molten material transport device moves while the molten material M is contained within the container 1000. Here, the molten material transport device moves with the opening 1100 of the container 1000 closed by the covering member 2100. Closing the opening 1100 while moving the molten material transport device is characterized by preventing or suppressing a drop in temperature of the molten material M.

[0046] Container 1000 is a unit for containing molten material M. Container 1000 may be made of a material containing refractory material to prevent or suppress temperature drop in the molten material M. Container 1000 may have a shape extending in one direction, and its two ends in the longitudinal direction may be inserted into a first housing 8100a and a second housing 8100b, and respectively connected to a first rotary drive unit 8200a and a second rotary drive unit 8200b, as shown in... Figure 1 As illustrated in the figure. Furthermore, the container 1000 may have an opening 1100 through which molten material M is loaded or discharged. The opening 1100 may be located at the central portion in the longitudinal direction of the container 1000.

[0047] Each of the first housing 8100a and the second housing 8100b may have a box shape with an internal space. Furthermore, a first rotary drive unit 8200a connected to one end of the container 1000 may be disposed in the first housing 8100a, and a second rotary drive unit 8200b connected to the other end of the container 1000 may be disposed in the second housing 8100b. (As in...) Figure 1 As illustrated, the base 4300, the lifting and lowering drive unit 5000, and the forward and backward drive unit 4000 can be disposed on one of the first housing 8100a and the second housing 8100b, for example, on the first housing 8100a.

[0048] Each of the first rotary drive unit 8200a and the second rotary drive unit 8200b is a unit that provides rotary driving force to rotate the container 1000. Each of the first rotary drive unit 8200a and the second rotary drive unit 8200b may be an electrically operated unit. As a more specific example, each of the first rotary drive unit 8200a and the second rotary drive unit 8200b may be a unit that includes an electrically operated motor.

[0049] When the molten material M in container 1000 is discharged to the outside, the container 1000 can be rotated by the first rotary drive unit 8200a and the second rotary drive unit 8200b. That is, when the container 1000 is rotated by operating the first rotary drive unit 8200a and the second rotary drive unit 8200b, causing the height of the opening 1100 to decrease, the molten material M is discharged to the outside through the opening 1100.

[0050] Each of the first moving unit 8300a and the second moving unit 8300b is a unit that moves the molten material transport device. Each of the first moving unit 8300a and the second moving unit 8300b may be a unit that slides along a track. That is, each of the first moving unit 8300a and the second moving unit 8300b may include a frame 8310 disposed below each of the housings 8100a and 8100b and a wheel 8320 disposed below the frame 8310 for rotation.

[0051] As in Figure 1 As illustrated, a space for worker H to ride on can be provided in the upper portion of at least one of the first moving unit 8300a and the second moving unit 8300b. For example, as shown in... Figure 1 As illustrated, the space for worker H to ride on can be located in the upper part of the second moving unit 8300b. Therefore, the molten material transport device can move while worker H rides on it.

[0052] Worker H can ride on a molten material transport device equipped with a remote controller R, which can wirelessly control the operation of at least one of the forward and backward drive units 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000, which will be described later. Therefore, worker H can control the forward and backward drive units 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000 using the remote controller R. That is, worker H can control the forward and backward drive units 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000 without leaving the molten material transport device.

[0053] Therefore, when the molten material transport equipment moves to its final destination, worker H can open or close opening 1100 by operating the remote controller R to move the covering unit 2000, as necessary. That is, worker H can control the operation of at least one of the forward and backward drive units 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000 by using the remote controller R to move the covering unit 2000, thereby opening and closing opening 1100.

[0054] Here, the situation where opening 1100 needs to be opened as the molten material transport device moves toward its final destination might be when the molten material transport device reaches the location for inputting secondary materials. For example, when the molten material transport device moves to its final destination, it may be necessary to input secondary materials such as heating agents and desulfurizing agents. Therefore, when the molten material transport device reaches the location for inputting heating agents (hereinafter referred to as the heating agent input location) and the location for inputting desulfurizing agents (hereinafter referred to as the desulfurizing agent input location) while the molten material transport device is being moved, opening 1100 needs to be opened to input the secondary materials.

[0055] Therefore, when the molten material transport equipment moves on the plate with worker H and reaches, for example, the heating agent input position, worker H controls the operation of the covering unit 2000 by using the remote controller R to open the opening 1100 closed by the covering member 2100. Subsequently, when the input of secondary materials is completed, worker H moves the covering member 2100 again by using the remote controller R to close the opening 1100.

[0056] Figures 4 to 6 This is a view used to illustrate the operation of the covering unit and support unit of the molten material transport device according to an exemplary embodiment, and shows a portion of the molten material transport device.

[0057] Reference Figures 1 to 6 The covering unit 2000 is a unit for closing (covering) or opening the opening 1100 defined in the container 1000. The covering unit 2000 opens and closes the opening 1100 by forward and backward movement relative to the opening 1100, as well as by lifting and lowering movement. The covering unit 2000 includes an arm 2200 coupled to a forward and backward drive unit 4000 and a covering member 2100 connected to the end of the arm 2200.

[0058] Arm 2200 may have a shape extending in one direction. More specifically, arm 2200 may have a shape extending in the direction in which the first housing 8100a and container 1000 are arranged. In other words, arm 2200 may have a shape extending in the direction in which the forward and backward drive unit 4000 and opening 1100 are arranged. In other words, arm 2200 may have a shape extending in the longitudinal direction (X-axis direction) of container 1000. As in Figure 2 As illustrated, arm 2200 may have a plate shape with a predetermined area and thickness.

[0059] Arm 2200 can be coupled to forward and backward drive unit 4000 and move forward or backward toward opening 1100 through operation of forward and backward drive unit 4000. Here, arm 2200 can be coupled to the upper portion of forward and backward drive unit 4000. Furthermore, arm 2200 can be connected to forward and backward drive unit 4000 in various ways. For example, when forward and backward drive unit 4000, which will be described later, includes a belt having a plurality of protrusions arranged in one direction and grooves located between the protrusions, arm 2200 can be coupled to belt 4200. That is, protrusions that insert into or engage with the grooves of belt 4200 can be provided on the bottom surface of arm 2200.

[0060] However, the arm 2200 is not limited to the exemplary embodiments described above. As long as the arm 2200 is connected to the forward and backward drive unit 4000, the arm 2200 can have various shapes and units.

[0061] The cover member 2100, serving as a unit for closing the opening 1100, is connected to the arm 2200. More specifically, the cover member 2100 is connected to one of the two ends (one end) facing the opening 1100 in the extending direction of the arm 2200. The cover member 2100 has dimensions sufficient to cover or close the entire opening 1100. For this purpose, the uppermost surface of the cover member 2100 may have a dimension equal to or greater than the size of the opening in the vertical direction. Furthermore, the lower portion of the cover member 2100 can be inserted into the container 1000 through the opening. For this purpose, the cover member 2100 may have a shape in which the width gradually decreases in the direction toward the lower portion of the cover member 2100. In other words, the cover member 2100 may have a downwardly projecting shape.

[0062] Although it is described that the uppermost surface of the cover member 2100 has a size equal to or greater than the size of the opening 1100, the exemplary embodiments are not limited thereto. For example, either the uppermost or lowermost surface of the cover member 2100 may have a size equal to or greater than the size of the opening 1100.

[0063] The covering member 2100 may be made of a material containing refractory material. This is to prevent or suppress the temperature drop of the molten material M in the container 1000 when the opening 1100 is closed by the covering member 2100.

[0064] As in Figure 2 and Figure 3 As illustrated, a forward and backward drive unit 4000 for moving the cover portion 2000 forward and backward relative to the opening 1100 can be provided above the first housing 8100a, so as to be located on one side of the container 1000 in the longitudinal direction (X-axis direction).

[0065] Reference Figure 2 and Figure 3 The forward and backward drive unit 4000 includes: a base 4300 disposed on the lifting and lowering drive unit 5000; a forward and backward drive body 4200 connected to the arm 2200 above the base 4300 and movable in a direction opposite to the opening 1100; and a forward and backward drive source 4100 disposed on the base 4300 and connected to the forward and backward drive body 4200 to operate the forward and backward drive body 4200. Furthermore, the forward and backward drive unit 4000 may include a connecting member 4400 connecting the forward and backward drive source 4100 and the forward and backward drive body 4200.

[0066] The base 4300 may have a plate shape extending in the direction of the covering unit 2000. In other words, the base 4300 may have a plate shape extending in the direction of the arrangement of the first housing 8100a and the container 1000.

[0067] The forward and backward drive body 4200 is mounted on the base 4300 and connected to the arm 2200 of the cover unit 2000. (As in...) Figure 2 and Figure 3 As illustrated, the forward and backward drive body 4200 may include: a pair of pulleys 4210 arranged along the extension direction of the base 4300 and spaced apart from each other to rotate by operation of the forward and backward drive source 4100; and a belt 4200 coupled to the pair of pulleys 4210 to surround the outer circumferential surface of the pair of pulleys 4210.

[0068] Each of the pair of pulleys 4210 may be a unit comprising a plurality of protrusions or serrations arranged in a circumferential direction along its outer circumferential surface. The belt 4200 may have a loop or annular shape and be mounted around the outer circumferential surface of the pair of pulleys 4210. A plurality of protrusions and grooves located between the protrusions may be provided on the inner surface in contact with the outer circumferential surface of the pulleys 4210 and on the outer surface opposite to the inner surface of the belt 4200. Here, the protrusions provided on the inner surface of the belt 4200 may be units that insert into or engage with the grooves between the protrusions provided on the outer circumferential surface of the pulleys 4210. Furthermore, the protrusions provided on the outer surface of the belt 4200 may be units that insert into or engage with the grooves defined in the bottom surface of the arm 2200.

[0069] The forward and backward drive source 4100, which serves as a unit allowing the pulley 4210 to rotate, can be connected to one of the pulleys 4210. Furthermore, the forward and backward drive source 4100 can be an electrically operated unit. For example, the forward and backward drive unit 4000 can be a unit including an electrically operated motor. As a more specific example, the forward and backward drive source 4100 can be a unit including a direct current motor (DC motor).

[0070] The operations of the forward and backward drive body 4200 and the cover unit 2000 when the forward and backward drive source 4100 includes a DC motor, and the operations of the forward and backward drive body 4200 and the cover unit 2000 when the forward and backward drive source 4100 is operated by the forward and backward drive source 4100, will be briefly described below. The rotation direction of the pulley 4210 can be adjusted according to the polarity of the supplied power or current. That is, when power is applied by connecting the first terminal of the DC motor to the positive (+) terminal and the second terminal to the negative (-) terminal, the pulley 4210 rotates clockwise, for example. Conversely, when power is applied by connecting the first terminal of the DC motor to the negative (-) terminal and the second terminal to the positive (+) terminal, the pulley 4210 rotates counterclockwise. Furthermore, the belt 4200 rotates due to the rotation of the pulley 4210. For example, when pulley 4210 rotates clockwise, belt 4200 can rotate clockwise, and conversely, when pulley 4210 rotates counterclockwise, belt 4200 can rotate counterclockwise. Furthermore, the covering unit 2000 connected to belt 4200 moves with the rotation of belt 4200. For example, when belt 4200 rotates clockwise, covering unit 2000 moves forward toward the opening 1100 of the container, and when belt 4200 rotates counterclockwise, covering unit 2000 moves backward in the opposite direction to the opening 1100.

[0071] The aforementioned forward and backward drive units 4000 can be configured in multiple ways, for example, in pairs. Furthermore, as in... Figure 2 As illustrated, the pair of forward and backward drive units 4000 can be arranged in a direction that intersects or is perpendicular to the direction of forward and backward movement of the covering unit 2000.

[0072] In addition, such as in Figure 2 As illustrated, the forward and backward drive unit 4000 may further include a guide member 4600 that allows the cover unit 2000 to move forward and backward more stably. That is, the forward and backward drive unit 4000 may include a guide member 4600 extending in the direction of extension of the cover unit 2000 and mounted on the base 4300. The guide member 4600 may be a track. Furthermore, a movable body (not shown) coupled to and sliding along the guide member 4600 may be additionally disposed on the bottom surface of the arm 2200.

[0073] A lifting and lowering drive unit 5000, serving as a unit for lifting and lowering the cover unit 2000, can be disposed below the forward and backward drive unit 4000. That is, the lifting and lowering drive unit 5000 can be disposed between the forward and backward drive unit 4000 and the support member 8400. The lifting and lowering drive unit 5000 may include: a lifting and lowering drive source 5100, disposed on the support member 8400 to provide lifting and lowering driving force; and a lifting and lowering drive body 5200, which, through the operation of the lifting and lowering drive source 5100, is operated to the upper part where the forward and backward drive unit 4000 is disposed or to the lower part as the side opposite to the forward and backward drive unit 4000.

[0074] The lift and lower drive source 5100, which serves as a unit for lifting and lowering the lift and lower drive body 5200, can be electrically operated. The lift and lower drive source 5100 can include all types of units, as long as these units can lift and lower the lift and lower drive body 5200. For example, the lift and lower drive source 5100 can include an electrically operated motor.

[0075] The support unit 3000 is a unit that prevents the covering unit 2000 from deflecting due to its own weight. That is, the support unit 3000 is a unit that prevents the covering unit 2000, which moves forward to move away from the forward and backward drive unit 4000, from tilting to one side. More specifically, the support unit 3000 is configured to prevent the covering unit 2000 from tilting due to its own weight. Figure 3 and Figure 4 The diagram shows moving forward or as shown in the image. Figure 5 and Figure 6 When the illustrated material moves backward, or in the covering unit 2000 in the covering member 2100, as shown in the diagram. Figure 4As shown in the diagram, facing the opening, as Figure 5 As shown, it deflects downwards when decreasing.

[0076] As in Figure 2 and Figure 3 As illustrated, the support unit 3000 can be installed on the side portion of the first housing 8100a. That is, the support unit 3000 can be disposed in the space between the side portion of the first housing 8100a and the container 1000. Furthermore, the support unit 3000 can be installed so as to be inclined upward from the first housing 8100a toward the covering unit 2000 or the opening 1100. Therefore, when the support unit 3000 is raised and lowered, the support unit 3000 can be raised and lowered without interfering with the forward and backward drive unit 4000, the raising and lowering drive unit 5000, and the container 1000.

[0077] Reference Figure 2 and Figure 3 The support unit 3000 includes: a support member 3200 extending from the underside of the cover unit 2000 toward the cover unit 2000; a rotating body 3300 mounted at one end of the support member 3200 for rotating along the cover unit 2000 in a forward or backward motion; and a support member drive source 3100 for raising or lowering the support member 3200.

[0078] The support member 3200 may have a strip shape extending in one direction. A rotating body 3300 may be connected to the support member 3200. The rotating body 3300 may be connected to one end facing the opening, and the first housing 8100a may be connected to the other end, which is the opposite end of the two ends extending in the direction of extension of the support member 3200. Here, since the base 4300, the lifting and lowering drive unit 5000, and the forward and backward drive unit 4000 are mounted on the first housing 8100a, the other end of the support member 3200 may be connected to a side portion of the first housing 8100a.

[0079] Furthermore, the support member 3200 can be tilted upwards from the side portion of the first housing 8100a toward the opening or covering unit 2000. Therefore, the height of one end of the support member 3200 connected to the rotating body 3300 can be greater than the height of the other end of the support member 3200 connected to the first housing 8100a.

[0080] The rotating body 3300 is mounted at one end of the support member 3200 and rotates by a force that moves the cover unit 2000 when the rotating body 3300 contacts the cover unit 2000, which moves forward and backward. The rotating body 3300 may be a wheel or a roller.

[0081] The feature of mounting the rotating body 3300 on one end of the support 3200 is to prevent the support 3000 from interfering with the movement of the covering unit 2000. More specifically, to prevent the covering unit 2000 from deflecting due to its own weight when moving forward and backward, as in Figure 4 and Figure 5 As illustrated, the support unit 3000 contacts the lower portion of the covering unit 2000. Specifically, the rotating body 3300 contacts the lower portion of the covering unit 2000 to support the covering unit 2000. That is, when the covering unit 2000 moves forward and backward, the rotating body 3300 rotates due to the force of the covering unit 2000 moving forward and backward. Therefore, although the rotating body 3300 contacts and supports the covering unit 2000, the rotating body 3300 does not interfere with the forward and backward movement of the covering unit 2000.

[0082] However, when the rotating body 3300 is not located at one end of the support member 3200 and the support member 3200 supports the cover unit 2000 by directly contacting its lower portion, the cover unit 2000 may not be able to move smoothly via the support member 3200. That is, the support member 3200 may interfere with the movement of the cover unit 2000. Therefore, by mounting the rotating body 3300 at one end of the support member 3200, the cover unit 2000 can be supported without deflection and without interfering with the forward and backward movement of the support unit 3000.

[0083] The support member drive source 3100 is a unit for raising and lowering the support member 3200. The feature of raising and lowering the tilted support member 3200 indicates the operation of raising or lowering the height of one end connected to the rotating body 3300. Furthermore, since the support member 3200 is mounted tilted upwards toward the opening, when the support member 3200 is raised, one end of the support member 3200 moves closer to the opening, and when the support member 3200 is lowered, said one end moves away from the opening. Therefore, the raising and lowering operation of the support member 3200 can be characterized by moving forward toward the opening or moving backward toward the side opposite to the opening. In other words, the support member 3200 moves forward and backward along the tilt direction.

[0084] The support height adjustment unit 6000 is used to raise and lower the entire support unit 3000. That is, as in... Figure 4 and Figure 6 As shown in the diagram, the support height adjustment unit 6000 raises and lowers the entire support unit 3000. (As illustrated in...) Figure 3As shown in the figure, the support height adjustment unit 6000 can be installed on the side portion of the first housing 8100a, and the other end of the support unit 3000 can be connected to the support height adjustment unit 6000.

[0085] The support height adjustment device 6000 may include: a guide member 6100 extending vertically and disposed on a side portion of the first housing 8100a; a movable block 6200 mounted to the other end of the support unit 3000 and connected to the guide member 6100 for sliding along the guide member 6100; and a height adjustment drive source 6300 operating the movable block 6200. According to the support height adjustment unit 6000, the movable block 6200 is raised or lowered along the guide member 6100 by the operation of the height adjustment drive source 6300. Here, the support unit 3000 connected to the movable block 6200 is raised or lowered together with the movable block 6200.

[0086] Each of the aforementioned support drive source 3100 and height adjustment drive source 6300 can be an electrically operated unit. For example, each of the support drive source 3100 and height adjustment drive source 6300 can be a unit including an electrically rotated motor and a moving member that moves linearly according to the rotation of the motor and moves forward or backward according to the direction of the motor's rotation. As a more specific example, each of the support drive source 3100 and height adjustment drive source 6300 can include an LM guide.

[0087] Each of the support drive source 3100 and the height adjustment drive source 6300 is not limited to the exemplary embodiments described above. Each of the support drive source 3100 and the height adjustment drive source 6300 may include all kinds of units capable of electrically raising or lowering each of the support 3200 and the moving block 6200.

[0088] The feature of raising and lowering the entire support unit 3000 using the support height adjustment device 6000 is that it can support the cover unit 2000 even when raising and lowering it, without interfering with the raising and lowering of the cover unit 2000. For example, when the cover unit 2000 is as follows... Figure 5As illustrated, when the cover member 2100 is lowered to close the opening, the support unit 3000 is also lowered. Therefore, the support unit 3000 can move downwards without interfering with the cover unit 2000. Furthermore, the support unit 3000 is lowered while maintaining contact with or supported by the arm of the cover unit 2000, rather than being separated from it. This can be achieved by using a support member drive source 3100 to raise or lower the support unit 3200 while lowering the entire support unit 3000. In other words, this can be achieved by moving the support member 3200 forward or backward toward the cover unit 2000 or the opening 1100. Therefore, the support unit 3000 can support the cover unit 2000 to prevent deflection and can move downwards without interfering with the cover unit 2000.

[0089] The power supply unit 7200 is a unit that supplies power to each of the forward and backward drive sources 4100, the lifting and lowering drive source 5100, the support drive source 3100, and the height adjustment drive source 6300. The power supply unit 7200 may be a rechargeable battery. Additionally, the power supply unit 7200 may be mounted on a molten material transport device and housed, for example, in a first housing 8100a. Furthermore, the power supply unit 7200 may be connected to a control unit 7100, which will be described later.

[0090] Although the power supply unit 7200 is described as including a rechargeable battery, exemplary embodiments are not limited thereto. For example, the power supply unit 7200 may include a disposable battery. When the power supply unit 7200 includes a disposable battery, the battery can be replaced periodically.

[0091] When the power unit 7200 is installed inside the first housing 8100a and on the molten material transport equipment, the cover unit 2000 can move forward and backward, as well as be raised and lowered, using its own power as needed, without needing to connect to an external power source. That is, when it is necessary to open or close the opening 1100, the opening 1100 can be opened or closed using electricity via the cover member 2100, which uses the installed power supply unit 7200, without having to move the molten material transport equipment to the position set by external power.

[0092] The control unit 7100 can be installed in the first housing 8100a, more specifically inside the first housing 8100a. Furthermore, the control unit 7100 can be operated by command signals input from an external source to control each of the forward and backward drive unit 4000, the lift and lower drive unit 5000, the support unit 3000, and the support height adjustment unit 6000.

[0093] The control unit 7100 may include a forward and backward control unit 7110 that controls the operation of the forward and backward drive unit 4000, a lift and lower control unit 7120 that controls the operation of the lift and lower drive unit 5000, and a support control unit 7130 that controls the operation of the support unit 3000 and the support height adjustment unit 6000.

[0094] The forward and backward control unit 7110 controls the operation of the forward and backward drive source 4100. Specifically, the forward and backward control unit 7110 controls the forward and backward drive source 4100 to adjust the rotation direction of the pulley 4210 and whether the pulley 4210 causes the forward and backward drive body 4200 to rotate. Here, the forward and backward control unit 7110 can operate according to command signals input from an external source to control the forward and backward drive source 4100. That is, when one of a forward movement command signal, a forward movement stop command signal, a backward movement command signal, and a backward movement stop command signal input from a remote controller R operated by worker H is sent to the forward and backward control unit 7110, the forward and backward control unit 7110 controls the operation of the forward and backward drive source 4100 according to the input signal. Therefore, the forward and backward drive body connected to the forward and backward drive source 4100, i.e., the pulley 4210, is adjusted to rotate or not rotate, and the rotation direction is adjusted.

[0095] The lifting and lowering control unit 7120 controls the operation of the lifting and lowering drive source 5100. In other words, the lifting and lowering control unit 7120 controls the lifting and lowering drive source 5100 to adjust whether the lifting and lowering drive body 5200 is operated and the direction of movement of the lifting and lowering drive body 5200 (i.e., upward or downward movement). Furthermore, the lifting and lowering control unit 7120 can operate according to command signals input from an external source. That is, when one of a lifting command signal, a lifting stop command signal, a lowering command signal, and a lowering stop command signal is input from the remote controller R, the lifting and lowering control unit 7120 controls the operation of the lifting and lowering drive source 5100 according to the input command signal. Therefore, the lifting and lowering drive body 5200 connected to the lifting and lowering drive source 5100 can be raised or lowered, or the lifting and lowering operation can be stopped.

[0096] The support control unit 7130 controls the operation of the support member drive source 3100 and the height adjustment drive source 6300 of the support unit 3000. Furthermore, the support control unit 7130 controls the support member drive source 3100 and the height adjustment drive source 6300 according to command signals input from an external source.

[0097] First, the support member drive source 3100 will be described. When a lifting command signal, a lifting stop command signal, a lowering command signal, or a lowering stop command signal is input from the remote controller R to the support control unit 7130, the support control unit 7130 controls the operation of the support member drive source 3100 according to the input signal. That is, the support control unit 7130 controls the operation of the support member drive source 3100 according to the input signal, so that the support member 3200 is lifted or lowered, or the lifting and lowering operations are stopped.

[0098] Furthermore, when a lifting command signal, a lifting stop command signal, a lowering command signal, or a lowering stop command signal concerning the entire support unit 3000 is input from the remote controller R to the support control unit 7130, the support control unit 7130 controls the operation of the height adjustment drive source 6300 according to the input signal. Therefore, the support unit 3000 connected to the support height adjustment unit 6000 can be raised or lowered, or the raising and lowering operations can be stopped.

[0099] As described above, each of the forward and backward control unit 7110, the lift and lower control unit 7120, and the support control unit 7130 controls whether the power input from the power unit 7200 is output to the drive source connected to each component or not.

[0100] That is, the forward and backward control unit 7110 controls whether the power input from the power supply unit 7200 is output (on) or not output (off) to the forward and backward drive source 4100, and the lift and lower control unit 7120 controls whether the power input from the power supply unit 7200 is output (on) or not output (off) to the lift and lower drive source 5100. Here, each of the forward and backward control unit 7110 and the lift and lower control unit 7120 can output or not output power according to the input command signal.

[0101] Furthermore, the support control unit 7130 controls the power input from the power supply unit 7200 to output (turn on) or not output (turn off) power to each of the support member drive source and the height adjustment drive source 6300. Here, the support control unit 7130 may or may not output power according to the command signal for the support member 3200 or the support unit 3000.

[0102] The above describes how a worker wirelessly transmits command signals to the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130 via a remote controller R to control the operation of the forward and backward drive unit 4000, the lifting and lowering drive unit 5000, the support unit 3000, and the support height adjustment unit 6000. However, the exemplary embodiments are not limited to the method of controlling the operation of each of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130 or inputting command signals.

[0103] For example, an operation button (not shown) connected to each of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130 can be mounted on the outside of the first housing 8100a. Furthermore, by operating the operation button, the worker can control each of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130. That is, a command signal can be input to each of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130 using the operation button. Therefore, each of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130 operates according to the input command signal to control the operation of each of the forward and backward drive source 4100, the lifting and lowering drive source 5100, the support drive source 3100, and the height adjustment drive source 6300.

[0104] As another example, an operating handle (not shown) can be provided that applies physical force to each of the forward and backward drive sources 4100, the lifting and lowering drive source 5100, the support drive source 3100, and the height adjustment drive source 6300. That is, the operating handle connected to each of the forward and backward drive sources 4100, the lifting and lowering drive source 5100, the support drive source 3100, and the height adjustment drive source 6300 can be mounted externally to the first housing 8100a. The operating handle is configured to allow the worker to apply force directly. The operating handle is configured such that, in the event of a failure of at least one of the forward and backward control unit 7110, the lifting and lowering control unit 7120, and the support control unit 7130, the worker H can dismount from the molten material transport equipment and directly operate the operating handle.

[0105] In the following text, reference will be made to Figures 1 to 6The operation of a molten material transport device according to an exemplary embodiment is described. Here, molten iron as molten material M drawn from a blast furnace will be used as an example for description. Furthermore, the state in which the molten iron drawn from the blast furnace is loaded into a container 1000, the opening 1100 is closed by a covering member 2100, and then the molten material transport device begins to move will be described as an example.

[0106] The molten material transport equipment stops when it moves to the position where the opening 1100 needs to be opened. Here, the position where the opening 1100 needs to be opened can be, for example, the position where a heating agent is introduced into the molten iron in the container 1000.

[0107] When the molten material transport device reaches the heating agent inlet position and stops moving, the cover unit 2000 is moved to open the opening 1100. The method of opening the opening 1100 will be described again later. When the opening 1100 is opened, the heating agent is introduced into the container 1000.

[0108] After the heating agent input is complete, the opening 1100 is closed again. For this purpose, power input from the power supply unit 7200 via the forward and backward control unit 7110 is output to the forward and backward drive source 4100 to operate it. Here, the forward and backward control unit 7110 controls the operation of the forward and backward drive source 4100, causing the pulley 4210 to rotate clockwise. Therefore, the pulley 4210 and belt 4200 rotate clockwise, and thus the covering unit 2000 moves forward toward the opening 1100, as in... Figures 3 to 4 As shown in the diagram.

[0109] As described above, when the covering unit 2000 moves forward, the support unit 3000 supports the covering unit 2000, preventing the covering unit 2000 from deflecting. To achieve this, firstly, the entire support unit 3000 is raised using the support height adjustment unit 6000. Subsequently, as in... Figure 4 As illustrated, the support drive source 3100 is operated to lift the support unit 3200, such that the rotating body 3300 of the support unit 3000 contacts the bottom surface of the arm 2200 of the cover unit 2000. As described above, when the rotating body 3300 contacts the bottom surface of the arm 2200, the support unit 3000 supports the cover unit 2000 (first support process).

[0110] Although the description describes raising the entire support unit 3000 and then the support member 3200 using the support height adjustment unit 6000, the exemplary embodiment is not limited thereto. For example, the process can be performed in any order and can be performed simultaneously simply by rotating the bottom surface of the support arm 2200 of the body 3300.

[0111] When the covering unit 2000 is supported by allowing the rotating body 3300 of the support unit 3000 to contact the covering unit 2000, it can support the area other than the covering member 2100, i.e., the arm 2200, as in Figure 4 As illustrated in the diagram. This is because the covering member 2100 is made of a refractory material with excellent heat resistance but relatively high impact resistance. Therefore, when the covering unit 2000 begins to move forward, the covering unit 2000 does not need to be supported by the support unit 3000. That is, at the start of forward movement, the rotating body 3300 and the arm 2200 of the support member 3200 can be separated from each other. Then, after the covering unit 2000 begins to move forward and the covering member 2100 passes the rotating body 3300, the rotating body 3300 of the support unit 3000 contacts the arm 2200 to move the covering portion 2000.

[0112] Subsequently, as the forward and backward drive source 4100 continues to operate, the cover unit 2000 continues to move forward through the operation of the forward and backward drive body 4200. That is, as in Figure 3 and Figure 4 As illustrated, the covering member 2100 gradually moves forward toward the opening 1100. Here, since the support unit 3000 supports the arm 2200 at its lower portion, the covering unit 2000 can be prevented from deflecting due to its own weight. Furthermore, since the rotating body 3300 rotates due to the force of the covering unit 2000 moving forward, the support unit 3000 can support the covering unit 2000 without interfering with its movement.

[0113] During this forward movement, when the covering member 2100 faces as in Figure 4 When the opening is shown in the diagram, the forward and backward control unit 7110 stops the operation of the forward and backward drive source 4100. Therefore, the operation of the forward and backward drive body 4200 stops, and the forward movement of the cover unit 2000 also stops.

[0114] Subsequently, the lifting and lowering drive source 5100 is operated by using the lifting and lowering control unit 7120 to lower the coverage unit 2000, as in Figure 5 As illustrated in the figure. Here, the covering member 2100 is lowered to facilitate seating on the upper wall of the container 1000 surrounding the opening 1100. Furthermore, the covering unit 2000 is lowered such that at least the lowermost surface of the covering member 2100 is inserted into the container 1000 through the opening. Therefore, as shown in... Figure 5 As shown in the figure, the opening 1100 of the container 1000 is closed by the covering member 2100.

[0115] When the covering unit 2000 is lowered, the supporting unit 3000 is also lowered, as in... Figure 5As illustrated in the diagram. This is to prevent the support unit 3000 from interfering with the lowering of the covering unit 2000. That is, when the covering portion 2000 is lowered, if the height of the support unit 3000 is fixed while supporting the covering unit 2000, the covering unit 2000 can remain unlowered. Therefore, when the covering unit 2000 is lowered, the support unit 3000 is also lowered.

[0116] Furthermore, when the cover unit 2000 and the support unit 3000 are lowered to close the opening 1100, the support unit remains in a state supporting the cover unit 2000 (second support process). That is, the rotating body 3300 is held in a state where the arm 2200 contacts the cover unit 2000. This can be adjusted by operating the support member drive source 3100 to raise the support unit 3200 toward the cover unit 2000 or to lower the support unit 3200 toward the opposite side when the support unit 3000 is lowered.

[0117] On the other hand, when the arm 2200 of the covering unit 2000 extends relatively long in one direction and the covering member 2100 faces the opening 1100, most of the arm 2200 is located outside the forward and backward drive unit 4000. When the covering unit 2000 is not supported in this state, the covering unit 2000 can be deflected downward. That is, the covering unit 2000 can be tilted such that its height gradually decreases in the direction toward the covering member 2100. Furthermore, the covering member 2100 can also be tilted. In this case, when the covering member 2100 is lowered and the covering member 2100 is seated on the opening 1100, a gap is formed between the opening 1100 and the upper wall of the container 1000 surrounding the opening 1100. Therefore, a portion of the opening 1100 may be exposed, which may lead to the problem that the opening 1100 may not be completely closed.

[0118] However, when the covering unit 2000 is lowered while it continues to be supported by the support unit 3000, the covering unit 2000 can be prevented from deflecting when the covering portion 2000 is lowered. That is, the covering unit 2000 can be prevented from deflecting to one side. Therefore, the covering member 2100 can be prevented from deflecting, and thus at least a portion of the opening 1100 can be prevented from being exposed. Therefore, the entire opening 1100 can be closed by the covering member 2100.

[0119] When opening 1100 is closed, the molten material transport device is transported again. Then, when the molten material transport device reaches the position where opening 1100 needs to be opened, such as the desulfurizer input position, opening 1100 is opened while the molten material transport device is moving. For this purpose, in contrast to the closing operation of opening 1100 described above, opening 1100 is opened by moving the covering unit 2000. That is, firstly, the covering unit 2000 is raised using the lifting and lowering drive unit 5000. Therefore, the covering member 2100 is spaced upward from the container 1000 and opening 1100 is opened. Then, when the covering unit 2000 is raised, the support unit 3000 can support the covering unit 2000.

[0120] After that, as in Figure 6 As illustrated, the forward and backward drive unit 4000 is operated to move the cover unit 2000 backward. Here, the cover unit 2000 moves backward such that the cover member 2100 is positioned on one side of the opening 1100, rather than facing the opening 1100. Therefore, the opening of the container 1000 is fully opened. When the opening 1100 is open, materials such as heating agents are fed into the container 1000. When the feeding of materials is complete, the cover unit 2000 moves forward and lowers again to close the opening.

[0121] There may be multiple locations along the path of the molten material transport equipment to its final destination where an opening needs to be opened. Therefore, the opening and closing operations of opening 1100 described above can be performed multiple times.

[0122] Subsequently, when the molten material transport equipment reaches its final destination, it stops moving. Here, the final destination can be a steel manufacturing plant that controls the phosphorus (P), sulfur (S), and carbon (C) content in the molten iron. The molten iron is then discharged from the molten material transport equipment to the outside. That is, the container 1000 is rotated by using a first rotary drive unit 8200a and a second rotary drive unit 8200b to lower the height of the opening 1100. Therefore, the molten iron is discharged through the opening 1100 of the container 1000, and the discharged molten iron is loaded into another container, such as a ladle, located below the container 1000.

[0123] Although the description is omitted above, each of the forward and backward control unit 7110, the lift and lower control unit 7120, and the support control unit 7130 can be operated by command signals input from a remote controller R operated by operator H to control the forward and backward drive unit 4000, the lift and lower unit 5000, the support unit 3000, and the support height adjustment unit 6000.

[0124] Figure 7This is a graph showing the temperature change of molten iron over time as it moves to the molten material transport device according to the exemplary embodiment and comparative example. Table 1 shows the temperature decrease per second, per minute, and per hour as the molten iron is moved to the molten material transport device according to the exemplary embodiment and comparative example.

[0125] Here, the molten material transport device according to the comparative example does not have a covering unit and moves without covering the opening.

[0126] Reference Figure 7 Throughout the entire time period, the temperature of the exemplary embodiment was higher than that of the comparative example. Furthermore, after 200 seconds, the temperature decrease rate of the exemplary embodiment was slower than that of the comparative example.

[0127] Table 1

[0128] Exemplary Implementation Comparison Examples Temperature drop per second (°C / second) 0.02571 0.02771 Temperature decreases per minute (°C / min) 1.5428 1.6628 Temperature drop per hour (°C / hour) 92.5714 99.7714

[0129] Furthermore, referring to Table 1, when comparing the rate of temperature decrease per second, per minute, and per hour, the exemplary implementation is inferior to the comparative example.

[0130] Therefore, it can be seen that the temperature drop of the molten material is effectively suppressed when the molten material is moved by using the molten material transport device according to the exemplary embodiment.

[0131] As described above, in the exemplary embodiment, the opening 1100 is opened and closed by moving the covering member 2100 horizontally, that is, by moving the covering member 2100 forward and backward. That is, the opening 1100 can be opened and closed by moving the covering member 2100 backward to one side of the opening 1100 or moving it forward toward the opening 1100 while minimizing the height at which the covering member 2100 is raised or lowered above the opening 1100. Therefore, the opening 1100 of the container 1000 can be easily opened and closed within a limited space.

[0132] Furthermore, when the covering unit 2000 is moved to open and close the opening 1100, the covering unit 2000 is supported by the support unit 3000, thereby preventing the covering unit 2000 from tilting. That is, the covering unit 2000 can be prevented from deflecting to one side. Therefore, forward and backward movement of the covering unit 2000 can be easily performed.

[0133] Furthermore, this prevents the covering member 2100 from tilting when closing the opening 1100. Therefore, a gap between the covering member 2100 and the container 1000 is prevented, and thus at least a portion of the opening 1100 is prevented from being exposed to the outside. Therefore, when the opening 1100 is closed by the covering member 2100, the temperature drop of the molten material in the container 1000 can be minimized.

[0134] Furthermore, in the exemplary embodiment, the molten material transport device is moved while equipped with a rechargeable power supply unit 7200. Therefore, the opening 1100 can be opened and closed without connection to an external power source, and the opening 1100 can be freely opened and closed as needed.

[0135] Industrial application

[0136] According to an exemplary embodiment, the opening of the container can be easily opened and closed within a limited space.

[0137] Furthermore, when the opening is opened and closed by moving the covering unit, deflection or tilting of the covering unit can be prevented. Therefore, the covering unit can be easily moved, and at least a portion of the opening can be prevented from being exposed to the outside. Thus, a decrease in temperature of the contents of the container can be prevented or suppressed.

[0138] Furthermore, the opening can be opened and closed without being connected to an external power source, and the opening can be freely opened and closed when necessary.

Claims

1. A molten material conveying device, comprising: A container having an internal space for containing molten material and an opening for the molten material to enter and exit; A covering unit having a covering member configured to close the opening and move forward and backward relative to the opening; A support unit having a rotating body disposed below the covering unit and movable forward and backward relative to the covering unit to contact the covering unit, and A forward and backward drive unit, connected at one side of the container to the lower portion of the covering unit, causes the covering unit to move forward and backward. The support unit is disposed between the forward and backward drive units and the container and is inclined upward, such that the distance to the opening gradually decreases in the direction toward the rotating body.

2. The molten material conveying device according to claim 1, wherein, The support unit includes: A support member having one end connected to the rotating body facing the covering unit, and the support member being inclined upwards such that the distance to the opening gradually decreases in the direction toward the one end; and A support drive source, connected to another end of the support, to move the support forward and backward relative to the cover unit.

3. The molten material transport device according to claim 1 further includes a support height adjustment unit, which is connected to the support unit to raise and lower the support unit.

4. The molten material conveying device according to claim 3 further includes: A lift and lower drive unit is provided, which is connected to the lower portion of the forward and backward drive unit to lift and lower the forward and backward drive unit. as well as A first housing and a second housing, respectively connected to two ends in the longitudinal direction of the container. The forward and backward drive units and the lifting and lowering drive units are disposed on the upper portion of the first housing, and The support unit and the support height adjustment unit are disposed on the side portion of the first housing.

5. The molten material transport device according to claim 4, further comprising a power supply unit disposed on the first housing to provide power to each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit. in, The power supply unit includes a battery.

6. The molten material transport device according to claim 4, further comprising a control unit configured to control the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit by receiving command signals input from an external source wirelessly.

7. The molten material conveying device according to claim 4, further comprising: A control unit, disposed on the first housing, controls the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit; as well as An operation button is provided on the first housing to transmit command signals to the control unit.

8. The molten material transport device according to claim 4 further includes an operating handle disposed on the first housing for controlling the operation of each of the forward and backward drive units, the lifting and lowering drive units, the support unit, and the support height adjustment unit.

9. A method for transporting molten material, the method comprising: A transport device for molten material, wherein the molten material is contained in a container; as well as Open and close the opening of the container. The opening and closing of the opening includes: Move the covering unit forward or backward relative to the opening; and The main support for the covering unit, which moves forward or backward, is located on its lower side. The opening and closing of the opening includes: After the covering unit moves forward or backward, the covering unit is raised or lowered; and Secondary support is provided at the lower side of the covering unit for raising or lowering the covering unit. The primary support and the secondary support include features that allow a rotating body disposed below the covering unit to contact the covering unit, and The main support includes a force that allows the rotating body to rotate by the force of the covering unit, which moves forward or backward.

10. The method according to claim 9, wherein, Allowing the rotating body to contact the covering unit includes moving the rotating body forward or backward relative to the covering unit, and The forward or backward movement of the rotating body relative to the covering unit includes moving the rotating body forward or backward in an inclined manner, such that the distance between the rotating body and the opening gradually decreases as the height of the rotating body increases.

11. The method according to claim 9, wherein, Allowing the rotating body to contact the covering unit includes allowing the rotating body to contact areas other than the area facing the opening when a portion of the covering unit is facing the opening to close the opening.

12. The method according to claim 9, wherein, The forward or backward movement of the rotating body, the primary and secondary supports, and each of the lifting and lowering are operated by means of electricity.

13. The method according to claim 9, wherein, The forward or backward movement of the rotating body, the primary support and the secondary support, and each of the lifting and lowering include the generation of command signals by a remote controller that is separately located from the molten material transport equipment and wirelessly connected to the covering unit and the rotating body.

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