KR20200120079A - Apparatus for leveling and method thereof - Google Patents

Abstract

The present invention relates to a flattening apparatus and a method thereof. The flattening apparatus, which is used to flatten a powdery material inserted on fluids stored in a container, includes: a support part provided to be spaced apart in an upper part of the container; a flattening part provided in the upper part of the container to be moved up and down such that at least one part can come in contact with the powdery material; and a rotation part having at least one part which can come in contact with the flattening part, and having at least one part connected to the support part so as to provide power for rotating the flattening part. The apparatus can evenly cover an upper part of fluids such as melt by flattening a powdery material inserted into the fluids.

Description

BACKGROUND OF THE INVENTION 1. Apparatus for leveling and method thereof

The present invention relates to a planarization apparatus and method, and more particularly, to a planarization apparatus and method capable of uniformly distributing a powder material over a melt.

In general, the molten steel, which has been refined in the steel making process, may be taken into a ladle and then transferred to a casting facility. At this time, before the molten steel is transferred to the casting facility, an insulating material such as rice hull is put on the top of the molten steel to prevent the molten steel from contacting the atmosphere.

Such an insulating material may be introduced by dropping from the upper part of the molten steel using an insulating material input device installed on the upper part of the ladle. However, since the insulation material input device is installed to put the insulation material in a specific position in the ladle, the insulation material injected into the upper part of the molten steel is easily accumulated in a specific location. In this way, the insulating material introduced into the molten steel may be freely moved and dispersed by the flow of the molten steel, but the slag generated during the refining process acts as a cause of interfering with the movement of the insulating material. Accordingly, an area in which the insulating material is distributed and an area not distributed in the upper part of the molten steel occurs.

However, the location where the process of introducing the insulation material is performed is very high, and since it is very high temperature, it is difficult for the operator to directly disperse the insulation material, and the molten steel transfer process is performed in a state where the insulation material is not evenly distributed over the molten steel. For this reason, there is a problem in that the molten steel contacts the atmosphere in a region where the thermal insulation material is not distributed and the temperature of the molten steel is lowered, and the quality of the molten steel is deteriorated due to reoxidation.

KR 10-1701981 B KR 10-2016-0040846 A KR 10-2012-0030634 A

The present invention provides a planarization apparatus and method capable of securing the quality of a melt by uniformly distributing a powder material over the melt.

A flattening device according to an embodiment of the present invention is a planarizing device for flattening a powder material injected onto a fluid contained in a container, comprising: a support provided to be spaced apart from the top of the container; A flat portion provided to be movable in a vertical direction on an upper portion of the container so that at least a portion of the powder material can be contacted; And a rotating part at least partially connected to the support part so as to be able to contact the flat part and provide power for rotating the flat part.

The flat part may include a rotation shaft disposed to extend in a vertical direction; A flattening machine connected to a lower portion of the rotation shaft so as to be in contact with the powder material and extend in a direction crossing a direction in which the rotation shaft extends; And an elevator for moving the rotary shaft and the flattening machine in the vertical direction.

The flattening machine may be formed in a bar shape or a plate shape in which a plurality of through holes are formed.

The rotating part may include a rotating member connected to the support so as to be in contact with the rotating shaft; A support member for fixing the rotating member to the support part; And a power member for providing rotational force to the rotating member.

The rotating member may include: a first gear provided to surround an outer peripheral surface of the rotating shaft at least in part in a direction in which the rotating shaft extends; And a second gear provided on one side of the first gear so as to engage with the first gear.

The support member may support the rotating member so that the flatter is higher than the melt and is disposed at a position capable of contacting the powder material.

A through hole having an inner diameter larger than the diameter of the rotation shaft is formed in the first gear, the rotation shaft includes a fastening protrusion on at least a part of an outer circumferential surface, and a fastening groove capable of engaging with the fastening protrusion is formed in the through hole. I can.

In order to limit the movement of the rotation shaft, the fastening groove may be formed on an upper side in the longitudinal direction of the through hole.

The second gear includes a support shaft disposed in a direction crossing a direction in which the rotation shaft extends, and the power member includes: a sheave provided outside the support shaft; A wire wound around the sheave; An automatic winder provided between the support shaft and the sheave to rotate the sheave and the second gear in one direction using the elasticity of the elastic body, and to automatically wind the wire on the sheave; And a retractor connected to one end of the wire to traction the wire to rotate the sheave and the second gear in the other direction.

The second gear may include a support shaft disposed in a direction in which the rotation shaft extends or a direction crossing the direction in which the rotation shaft extends, and the power member may include a motor for providing rotational force to the second gear. have.

The container includes a ladle, the fluid includes molten steel, the powder material includes a thermal insulation material, and the flat portion may flatten the insulation material on the upper portion of the molten steel.

The planarization method according to an embodiment of the present invention includes the process of providing a container for receiving a fluid; Injecting a powder material to the upper portion of the fluid; Inserting a flattening machine provided on the top of the container into the container; And a process of flattening the powder material by contacting the planarizer with the powder material so that the powder material may cover the entire upper portion of the fluid.

The inserting may include lowering the flattening machine; And stopping the lowering of the flattening machine, wherein the process of stopping the lowering of the flattening machine includes, when the flattening machine is higher than the hot water surface of the fluid and is disposed at a position in contact with the powder material, You can stop the descent.

The process of flattening the powder material may include a process of dispersing the powder material over the fluid by rotating the leveling machine while bringing at least a portion of the flat material into contact with the powder material.

A process of transferring the container may be further included, and the process of flattening the powder material may be performed during the process of transferring the container.

The fluid may include molten steel, and the powder may include an insulating material.

According to an embodiment of the present invention, it is possible to uniformly cover the upper portion of the melt by flattening the powder material to be introduced into the melt. Accordingly, it is possible to ensure the quality of the melt by suppressing the temperature decrease and reoxidation of the melt due to contact with the atmosphere. In addition, it is possible to improve process efficiency and productivity by suppressing the occurrence of operational troubles such as nozzle clogging in the subsequent casting process. In addition, since the powder material can be flattened in the process of transferring the container containing the molten material, it is possible to effectively suppress or prevent the temperature decrease and reoxidation of the molten material.

In addition, it is possible to prevent the worker from being exposed to a high temperature work environment, thereby preventing the occurrence of a safety accident.

1 is a perspective view of a planarization device according to an embodiment of the present invention.
2 is a front view of a planarization device according to an embodiment of the present invention.
3 is a cross-sectional view of a planarization device according to an embodiment of the present invention.
4 is a plan view showing various modified examples of a flattening machine.
5 is a cross-sectional view showing an operating state of a planarization device according to an embodiment of the present invention.
6 is a cross-sectional view showing a planarization device according to a modified example of the present invention.
7 is a front view showing a process of flattening an insulating material using a flattening device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and the scope of the invention to those of ordinary skill in the art It is provided to inform you.

The planarization apparatus and method according to the present invention can be used to uniformly disperse the powdered material injected into the fluid over the fluid. In the following embodiments, a planarization device capable of preventing the molten material from contacting the atmosphere by dispersing the insulation material evenly on the molten material after the insulation is added to the top of the melt accommodated in the ladle will be described. However, the planarization apparatus according to the present invention is not limited thereto, and may be applied to flatten various kinds of materials in various industrial sites.

1 is a perspective view of a planarization apparatus according to an embodiment of the present invention, FIG. 2 is a front view of a planarization apparatus according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a planarization apparatus according to an embodiment of the present invention, and FIG. Is a plan view showing various modified examples of the flattening machine, and FIG. 5 is a cross-sectional view showing an operating state of the flattening device according to an embodiment of the present invention.

Referring to FIG. 1, a planarization device according to an embodiment of the present invention is a planarization device for flattening a powder material injected into a fluid contained in a container 10, and a support part provided to be spaced apart from the top of the container 10 ( 100), and a support portion to provide power for rotating the flat portion 200 and the flat portion 200 provided to be movable in the vertical direction on the upper portion of the container 10 so that at least a portion thereof can be in contact with the powder material ( It may include a rotating part 300 connected to 100).

Referring to FIGS. 2 and 3, the support 100 may include a beam 110 disposed to extend in a horizontal direction above the container 10. In this case, the support part 100 may include a crane (not shown) or a hook device of a crane (not shown) capable of transporting heavy objects. In this case, the support 100, for example, the hook device may include a beam 110 disposed to extend in a horizontal direction and a first hook 120 provided on both sides of the beam 110. In addition, the beam 110 is connected to a wire drum (not shown) installed on the crane by a first wire rope 130 to move in the vertical direction. At this time, the container 10 may include a ladle that provides a space to accommodate the melt therein. A pair of trunnions 12 for fastening with the first hook 120 may be provided on the outer peripheral surface of the container 10.

Here, it has been described that the beam 110 is provided in the hook device of the crane, but the beam 110 may be installed to extend horizontally to a wall (not shown) or a structure (not shown) of a building.

The flat part 200 is provided so as to be movable and rotatable in the vertical direction, so that the insulating material injected into the container 10 can be uniformly distributed over the melt. The flat portion 200 includes a rotation shaft 210 disposed to extend in a direction crossing the direction in which the beam 110 extends, and a lower portion of the rotation shaft 210 so as to extend in a direction crossing the direction in which the rotation shaft 210 extends. It may include a flattening machine 220 connected to. In addition, the flat part 200 may include an elevator 230 for moving the rotating shaft 210 and the flattening machine 220 in the vertical direction.

The rotation shaft 210 includes a rotation shaft body 212 disposed to extend in a direction crossing the direction in which the beam 110 extends, for example, in a vertical direction, and a fastening ring 214 connected to the upper portion of the rotation shaft body 212 can do. The fastening ring 214 is a configuration for supporting the rotating shaft 210 and the flattening machine 220 and connecting to the elevator 230 for moving in the vertical direction. In this case, the fastening ring 214 may be rotatably connected to the rotating shaft body 212. This is to prevent the elevator 230 connected to the fastening ring 214 from being twisted due to the rotation of the rotating shaft body 212 or the elevator 230 from being damaged.

The flattening machine 220 may be connected to the lower portion of the rotation shaft body 212 so as to extend in a direction crossing the direction in which the rotation shaft body 212 extends, for example, in a horizontal direction. The flattening machine 220 may be formed in a bar shape having a length shorter than the inner diameter of the container 10 so that it can be inserted into the container 10. In this case, the center of the flattening machine 220 may be connected to the lower portion of the rotating shaft body 212. The flattening machine 220 may be disposed above the container 10, that is, outside the container 10, before flattening the insulating material, and may be inserted into the container 10 when the insulating material is flattened.

4 shows various modified examples of the flattening machine 220.

Referring to FIG. 4A, a plurality of flattening machines 220 may be radially connected to a lower portion of the rotating shaft body 212. In this case, the plurality of flatteners 220 may contact the insulating material in a plurality of areas to quickly planarize the insulating material on the upper part of the melt.

Referring to (b) of FIG. 4, the flattening machine 220 may be formed in a bar shape having a length smaller than the radius of the container 10. In this case, one end of the flattening machine 220 may be connected to the lower portion of the rotating shaft body 212. In this case, the flattening machine 220 may be disposed along the radial direction of the container 10. Accordingly, after the insulating material is flattened, a difference in height of the insulating material that may occur between the lower portion of the flattening machine 220 and around the flattening machine 220 can be minimized.

Referring to FIG. 4C, the flattening machine 220 may be formed in a plate shape having a plurality of through holes, for example, a plate shape having a network structure. In this case, the flattening machine 220 may be formed to have a diameter smaller than the inner diameter of the container 10. In this case, since the flattening machine 220 is in wide contact with the insulating material, it is possible to smoothly flatten the insulating material.

The shape of the flattening machine 220 is not limited thereto and may be variously changed.

The elevator 230 may be provided on the top of the container 10 to move the rotation shaft 210 and the flattening machine 220 in the vertical direction. At this time, the elevator 230 includes a second hook 232 for connecting with the fastening ring 214 of the flattening machine 220, and a second wire rope 234 and a second wire connected to the second hook 232 It may include a first actuator (not shown) for unwinding and winding the rope 234.

The rotating part 300 applies rotational force to the rotating member 310 provided to be in contact with the rotating shaft 210, the supporting member 330 for connecting the rotating member 310 to the supporting part 100, and the rotating member 310. It may include a power member 320 for providing. At this time, the rotation member 310 may transmit the rotational force generated by the power member 320 to the rotation shaft 210.

The rotating member 310 includes a first gear 312 so as to be engaged with the first gear 312 and the first gear 312 provided to surround the outer circumferential surface of the rotating shaft 210 in at least part of the direction in which the rotating shaft 210 extends. It may include a second gear 314 provided on one side of ).

The first gear 312 may have a first through hole 311 into which the rotation shaft 210 can be inserted. At this time, the diameter of the first through hole 311 may be formed larger than the diameter of the rotation shaft 210, for example, the rotation shaft body 212. Through this configuration, the first gear 312 and the rotation shaft body 212 may be disposed to be spaced apart from each other. The reason for separating the first gear 312 and the rotation shaft body 212 is that the rotation shaft body 212 can move in the vertical direction, so when the rotation shaft body 212 moves, the rotation shaft body 212 and the first gear 312 ) To prevent friction between them.

On the other hand, when the first gear 312 and the rotation shaft body 212 are arranged to be spaced apart, the rotational force by the first gear 312 cannot be transmitted to the rotation shaft body 212. Accordingly, a portion capable of contacting between the first gear 312 and the rotating shaft body 212 may be formed so that the rotational force of the rotating member 310 can be transmitted to the rotating shaft body 212. Accordingly, a fastening protrusion 216 formed to protrude from the outer circumferential surface of the rotation shaft body 212 may be formed, and a fastening groove 313 engaged with the fastening protrusion 216 may be formed in the first gear 312. At this time, the fastening protrusion 216 is higher than the hot water surface of the melt when the rotating shaft 210 and the flattening machine 220 are lowered, and at least the flattening machine 220 can contact the insulating material of the container 10. When disposed at a height that is, it may be formed to be engaged with the fastening groove 313. This is because the flattening machine 220 may be melted when it comes into contact with the melt, and the insulation cannot be flattened unless it comes into contact with the insulation material. And when the fastening groove 313 is engaged with the fastening protrusion 216, the rotation shaft 210 is supported by the first gear 214 to be formed on the upper side in the longitudinal direction of the first through hole 311 so that it cannot be lowered any more. That is, the fastening groove 313 may serve to limit the moving distance of the rotating shaft 210, for example, the moving distance of the rotating shaft 210 so that it can be moved by H, as shown in FIG. 3. Here, the longitudinal direction of the first through hole 311 may mean the longitudinal direction of the first gear 312, for example, the vertical direction. In order to adjust the height of the flattening machine 220 as described above, the first gear 312 may be fixedly installed at a position where the fastening protrusion 216 can be engaged with the fastening groove 313. This will be explained later.

Referring to Figure 5 (a), in order to flatten the heat insulating material introduced into the container 10, the rotating shaft 210 and the leveling machine 220 are lowered to insert at least the leveling machine 220 into the container 10. Should be done. While the rotation shaft 210 and the flattening machine 220 are descending, the rotation shaft body 212 may descend without contacting the first gear 312. And when the fastening protrusion 216 formed in the rotation shaft body 212 is inserted into the fastening groove 313, the rotation shaft 210 and the flattening machine 220 do not descend any more. When the descending of the rotating shaft 210 and the flattening machine 220 is stopped, the flattening machine 220 may be disposed at a position higher than the hot water surface of the melt and in contact with the insulating material.

The second gear 314 may be disposed on one side of the first gear 312 so as to mesh with the first gear 312. In this case, the first gear 312 and the second gear 314 may be disposed to form a bevel coupling. That is, the first gear 312 is arranged to rotate in the same direction as the rotation direction of the rotation shaft 210, and the second gear 314 is arranged to rotate in a direction crossing the rotation direction of the first gear 312 Can be.

The support member 330 may fix the rotating member 310 to the beam 110. As described above, in order to adjust the position of the flattening machine 220, the rotating member 310 may be fixedly installed at a specific position. In other words, in order to flatten the insulating material, the rotating shaft 210 and the flattening machine 220 must be lowered from the top of the container 10, and in order to transmit the rotational force to the rotating shaft 210, the rotating shaft 210 is connected to the rotating member 330. Should be in contact. At this time, the support member 330 stops the descending of the rotary shaft 210 and the flattening machine 220 at a position where the flattening machine 220 is disposed in a position where it can contact the thermal insulation material without contacting the melt, and the rotation shaft 210 ) And the rotating member 330, for example, the rotating member 320 may be fixed to the beam 110 so as to be in contact with the first gear 312. Through this configuration, the support member 330 may support the rotating member 320 so that the insulating material injected into the container 10 can be flattened using the flattening machine 220.

The support member 330 may include a support frame 332 connecting the beam 110 and the first gear 312. At this time, at one end of the support frame 332 connected to the first gear 312, a support block 334 that can be inserted into the first through hole 311 through the lower portion of the first gear 312 is formed. I can. A second through hole 335 through which the rotation shaft 210 can be inserted may be formed in the support block 334, and the second through hole 335 may be formed to have an inner diameter larger than the diameter of the rotation shaft 210. have. This is to prevent friction with the support block 334 when the rotation shaft 210 is moved or rotated in the vertical direction. In addition, the support member 330 may include a bearing 336 provided between the support block 334 and the first gear 312. Since the support block 334 is connected to the rotatable first gear 312, when the first gear 312 rotates, it may cause friction with the support block 334. Accordingly, by disposing the bearing 336 between the support block 334 and the first gear 312, it is possible to prevent friction between the first gear 312 and the support block 334. At this time, the free side of the bearing 336 may contact the first gear 312, and the fixed side of the bearing 336 may contact the support block 334.

Meanwhile, in the drawing, the first gear 312 and the second gear 314 are shown to be exposed to the outside, but the first gear 312 and the second gear 314 are inside a separate case (not shown). It may be acceptable. In this case, the support frame 332 may interconnect the beam 110 and the case.

A support shaft 315 extending in a direction intersecting with respect to a direction in which the rotation shaft 210 extends may be connected to the center of the second gear 314. In addition, a power member 320 for providing rotational force to the second gear 314 may be provided on the support shaft 315.

The power member 320 includes a sheave 322 provided on the outside of the support shaft 315, a third wire rope 324 wound around the sheave 322, and an elastic body (not shown). It is provided between the support shaft 315 and the sheave 322 so that the sheave 322 and the second gear 314 are rotated in one direction and the third wire rope 324 is automatically wound around the sheave 322 A retractor connected to one end of the third wire rope 324 to pull the automatic winder 326 and the third wire rope 324 to rotate the sheave 322 and the second gear 314 in other directions ( 340) may be included.

First, the automatic winder 326 may include a hollow housing (not shown) and an elastic body (not shown) provided inside the housing. The elastic body may be formed of a metal plate having good elasticity in a thin strip shape, and may be disposed inside the housing in a state that is tightly wound in a spiral. At this time, one end of the elastic body may be connected to the support shaft 315 and the other end of the elastic body may be arranged to be connected to the housing, and the housing may be rotatably connected to the support shaft 315.

The sheave 322 may be provided to surround the housing so as to rotate with the housing. In addition, the third wire rope 324 has one end connected to the sheave 322 and wound around the outer circumferential surface of the sheave 322, and the other end may be connected to the retractor 340.

The retractor 340 may be provided on the upper portion of the rotating member 310 to pull the third wire rope 324. The retractor 340 unwinds the third hook 342 for connecting to the third wire rope 324 and the fourth wire rope 344 and the fourth wire rope 344 connected to the third hook 342 And a second actuator (not shown) for winding. Here, the retractor 340 is described as being provided on the upper portion of the rotating member 310, but the retractor 340 is a rotating member 310 if it can pull the third wire rope 324 without being disturbed by surrounding facilities. It may be provided in the lower part of.

5(b) shows a state in which the rotation shaft 210 and the flattening machine 220 are rotated using the power member 320. When the third wire rope 324 is pulled by using the retractor 340, the third wire rope 324 is released from the sheave 322 and the sheave 322 and the housing rotate. Accordingly, the elastic body that is spirally wound and accommodated in the housing is released, and the support shaft 315 connected to the elastic body is rotated. The second gear 314 is rotated by the rotation of the support shaft 315, and the first gear 312 engaged with the second gear 314 may rotate. In addition, the rotation shaft 210 connected to the first gear 312 through the fastening protrusion 216 rotates along the rotation direction of the first gear 312, and according to the rotation of the rotation shaft 210, the flattening machine 220 ) Can also be rotated.

Here, the power member 320 has been described as including an automatic winder 326, a sheave 322, a wire 324, and a retractor 340, but a motor capable of providing rotational force to the rotating member 310 is provided. It can also include.

Hereinafter, a planarization device according to a modified example of the present invention will be described.

6 is a cross-sectional view showing a planarization device according to a modified example of the present invention.

Referring to Figure 6, the flattening device according to a modified example of the present invention, the support portion 100 provided to be spaced apart from the upper portion of the container 10, at least a portion of the upper portion of the container 10 so as to be in contact with the powder material. It may include a flat portion 200 provided to be movable in the vertical direction and a rotation portion 300a connected to the support portion 100 to provide power for rotating the flat portion 200. The planarization apparatus according to the modified example of the present invention may have a structure substantially similar to the planarization apparatus according to the embodiment of the present invention described above except for the rotating part 300a.

The rotating part 300a includes a rotating member 310a connected to the beam 110 so as to be in contact with the rotating shaft 210, a support member 330 connected to the beam 110 to support the rotating member 310a, and a rotating member. It may include a power member (320a) for providing a rotational force to (310a).

The rotating member 310a is a first gear 312a to be engaged with the first gear 312a and the first gear 312a provided to surround the outer circumferential surface of the rotating shaft 210 in at least a part of the direction in which the rotating shaft 210 extends. ) May include a second gear (314a) provided on one side of. At this time, except that the first gear 312a and the second gear 314a are arranged parallel to each other to form a spur coupling, it is substantially similar to the first gear 312 and the second gear 314 described above. It can be formed into a shape. The first gear 312a may be disposed to rotate in the same direction as the rotational shaft 210, and the second gear 314a may be disposed to rotate in the same direction as the first gear 312a. Further, at the center of the second gear 314a, a support shaft 315a disposed in the same direction as the direction in which the rotation shaft 210 extends, that is, parallel to the rotation shaft 210 may be connected. In addition, a power member 320a for providing rotational force to the second gear 314a may be connected to the support shaft 315a. The power member 320a may be installed on the beam 110, may include a motor that receives power and generates a rotational force, and the motor may rotate the support shaft 315a in both directions.

Hereinafter, a method of flattening an insulating material by using the flattening device according to an embodiment of the present invention will be described.

7 is a front view showing a process of flattening an insulating material using a flattening device according to an embodiment of the present invention.

When refining of the molten material, for example, molten steel (M) is completed, the container 10 containing the molten steel (M) can be transferred to a casting facility. In the process of transferring the container 10 containing the molten steel (M), in order to prevent the temperature drop and reoxidation that may occur when the hot water surface of the molten steel (M) comes into contact with the atmosphere, a thermal insulation material (I. ) Can be added. At this time, the container 10 may be in a state raised by the support 100 for transport.

When the insulating material (I) is put in the upper part of the molten steel (M), the container 10 containing the molten steel (M) can be transferred to the casting facility.

The insulating material (I) injected into the molten steel (M) is not uniformly dispersed by the slag (S) floating on the molten steel (M), and is piled up at the input location. Accordingly, the insulating material I can be flattened using a flattening device and dispersed so as to cover the entire upper portion of the molten steel M. At this time, the process of flattening the insulating material (I) may be performed while transferring the container (10).

First, as shown in (a) of FIG. 7, by using the elevator 230 to lower the rotation shaft 210 and the leveling machine 220, a part of the rotation shaft 210 and the leveling machine 220 are placed in a container 10 Can be inserted inside of. When the rotation shaft 210 and the flattening machine 220 descend, the fastening protrusion 216 formed on the rotation shaft 210 is inserted into and engaged with the fastening groove 313 formed in the first gear 312. When the fastening protrusion 216 is inserted into the fastening groove 313, the descending of the rotating shaft 210 and the flattening machine 220 may be stopped. In this case, the flattening machine 220 may be disposed at a position higher than at least the hot water surface of the molten steel and lower than the uppermost height of the insulating material I.

Next, as shown in (b) of FIG. 7, by raising the retractor 340, the third wire rope 324 may be towed. When the third wire rope 324 is pulled, the sheave 322 and the housing on which the third wire rope 324 is wound rotates, and the support shaft 315 rotates while the elastic body accommodated in the housing is released. do. Accordingly, the second gear 314 connected to the support shaft 315 rotates, and the first gear 312 engaged with the second gear 314 rotates. In addition, the rotation shaft 210 coupled to the first gear 312 rotates, and the flattening machine 220 connected to the lower portion of the rotation shaft 210 also rotates. The flattening machine 220 may flatten the insulating material I, which is piled high at a specific position above the melt M, for example, at an input position while rotating.

Subsequently, when the retractor 340 is lowered, the elastic body accommodated in the housing is rewound by elasticity, and the sheave 322 and the housing rotate in opposite directions, and the third wire rope 324 is attached to the sheave 322. You get cold. Accordingly, the support shaft 315 rotates in the opposite direction, and the second gear 314 connected to the support shaft 315 rotates along the rotation direction of the support shaft 315, and is engaged with the second gear 314. The first gear 312 is rotated in the opposite direction. In addition, the rotation shaft 210 coupled to the first gear 312 also rotates in the opposite direction, and the flattening machine 220 connected to the lower portion of the rotation shaft 210 also rotates along the rotation direction of the rotation shaft 210. do. If the rotation direction of the flattening machine 220 is changed in the process of flattening the insulating material I as described above, the insulating material I can be flattened more evenly.

In this way, the insulating material (I) injected into the upper portion of the molten steel (M) is flattened, that is, dispersed so that the entire upper portion of the molten steel (M) is covered with the insulating material (I) to prevent the molten steel (M) from contacting the atmosphere.

Thereafter, by using the elevator 230 to raise the rotating shaft 210, the flattener 220 may be withdrawn to the outside of the container 10.

Although the technical idea of the present invention has been described in detail according to the above embodiment, it should be noted that the above embodiment is for the purpose of description and not limitation. In addition, those skilled in the art in the technical field of the present invention will be able to understand that various embodiments are possible within the scope of the spirit of the present invention.

10: container 100: support
110: beam 200: flat portion
210: rotating shaft 220: flattening machine
300: rotating part 310: rotating member
320: power member 330: support member

Claims (16)

As a flattening device for flattening the powder material put on the fluid contained in the container,
A support provided to be spaced apart from the top of the container;
A flat portion provided to be movable in a vertical direction on an upper portion of the container so that at least a portion of the powder material can be contacted; And
And a rotating portion at least partially connected to the support portion so as to be able to contact the flat portion and provide power for rotating the flat portion. The method according to claim 1,
The flat portion,
A rotation shaft disposed to extend in the vertical direction;
A flattening machine connected to a lower portion of the rotation shaft so as to be in contact with the powder material and extend in a direction crossing a direction in which the rotation shaft extends; And
A flattening device comprising a; an elevator for moving the rotary shaft and the flattener in the vertical direction. The method according to claim 2,
The planarizer,
A flattening device formed in a bar shape or a plate shape in which a plurality of through holes are formed. The method according to claim 2,
The rotating part,
A rotating member connected to the support so as to be in contact with the rotating shaft;
A support member for fixing the rotating member to the support part; And
Planarization device comprising a; power member for providing a rotational force to the rotating member. The method of claim 4,
The rotating member,
A first gear provided to surround the outer circumferential surface of the rotation shaft at least in part in a direction in which the rotation shaft extends; And
And a second gear provided on one side of the first gear to engage with the first gear. The method of claim 5,
The support member,
A flattening device for supporting the rotating member so that the flattening machine is higher than the melt and is disposed at a position capable of contacting the powder material. The method of claim 6,
The first gear is formed with a through hole having an inner diameter larger than the diameter of the rotation shaft,
The rotation shaft includes a fastening protrusion on at least a portion of the outer circumferential surface,
A flattening device in which a fastening groove capable of engaging with the fastening protrusion is formed in the through hole. The method of claim 7,
The flattening device is formed on the upper side in the longitudinal direction of the through hole so as to limit the movement of the rotation shaft. The method of claim 5,
The second gear includes a support shaft disposed in a direction crossing a direction in which the rotation shaft extends,
The power member,
A sheave provided outside the support shaft;
A wire wound around the sheave;
An automatic winder provided between the support shaft and the sheave to rotate the sheave and the second gear in one direction using the elasticity of the elastic body, and to automatically wind the wire on the sheave; And
A flattening device comprising: a retractor connected to one end of the wire to pull the wire to rotate the sheave and the second gear in other directions. The method of claim 5,
The second gear includes a support shaft disposed in a direction in which the rotation axis extends or a direction crossing the direction in which the rotation axis extends,
The power member,
A flattening device comprising a motor for providing rotational force to the second gear. The method according to claim 1,
The container includes a ladle, the fluid includes molten steel, the powder material includes a thermal insulation material,
The flat part is a flattening device capable of flattening the insulating material on the upper portion of the molten steel. The process of providing a container for receiving the fluid;
Injecting a powder material to the upper portion of the fluid;
Inserting a flattening machine provided on the top of the container into the container; And
And a process of flattening the powder material by contacting the planarizer with the powder material so that the powder material can cover the entire upper portion of the fluid. The method of claim 12,
The inserting process,
Lowering the flattening machine; And
Including; the step of stopping the descending of the flattening machine
In the step of stopping the descending of the flattening machine, the flattening method of stopping the descending of the flattening machine when the flattening machine is disposed at a position higher than the hot water surface of the fluid and in contact with the powder material. The method of claim 13,
The process of flattening the powder material,
And dispersing the powder material over the fluid by rotating the leveling machine while bringing at least a portion of the planarizing machine into contact with the powder material. The method of claim 12,
Further comprising the process of transferring the container,
The process of flattening the powder material,
A planarization method performed during the process of transferring the container. The method of claim 12,
The fluid contains molten steel,
The powder material is a planarization method comprising a thermal insulation material.

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