KR20240000471U - tilting type apparatus for supplying sand to ladle of iron making - Google Patents

Abstract

A tilting type sand input device for a steelmaking ladle according to the present invention includes: a device structure in which a ladle containing molten iron made during the ironmaking process is transported to one side and the upper part is formed at a position higher than the height of the ladle; a hopper provided at the top of the device structure, inside which sand input into the ladle is stored; A universal inclined pipe is provided to slope downward from the lower part of the hopper toward the ladle, and one side is movably connected to the lower part of the hopper, so that the sand stored in the hopper is transferred; And, the other side of the universal inclined pipe is movably connected, and is provided in front of the universal inclined pipe to be vertically foldable and horizontally tilted and deployable, so that when the ladle is transported to one side of the device structure and temporarily stopped, the ladle is moved to one side of the device structure. It is characterized in that it includes; a tilting arm assembly that allows sand transported from the universal inclined pipe to be injected toward the gate hole of the ladle.
As a result, sand, which is used as a heat-resistant filler to fill the tapping hole of a steelmaking ladle that is somewhat far away, does not need to be manually inserted one by one by the operator, but the sand is automatically moved to the tapping hole of the ladle in a precise position using a tilting rotation method. By allowing the work to be done in a high-temperature atmosphere, safety accidents such as falling, falling, and burns due to workers' work that must be performed in a high-temperature atmosphere can be prevented in advance even at locations far ahead of the ladle, and workers are prevented from being directly exposed to high heat. It is possible to provide a tilting type sand input device for a steel ladle that can prevent work fatigue and improve work environment and work efficiency.

Description

Tilting type apparatus for supplying sand to ladle of iron making}

The present invention relates to a tilting type sand injection device for a steelmaking ladle. More specifically, it is necessary for an operator to manually insert sand, which is used as a heat-resistant filler, to fill the tapping hole of a steelmaking ladle that is somewhat distant. By automatically injecting sand into the ladle's tap port at a precise position using a tilting rotation deployment method, safety accidents such as falling, falling, or burns caused by workers' work that must be performed in a high temperature atmosphere are prevented by the ladle being spaced far forward. It relates to a tilting type sand input device for a steelmaking ladle that can be prevented in advance even at the location, prevents workers from being directly exposed to high heat, reduces work fatigue, and improves the working environment and work efficiency.

In the iron and steelmaking process, a ladle is a facility that receives molten metal obtained from a blast furnace, raises it to a certain temperature, and performs transfer or continuous casting processes. In the steelmaking process, refining, etc. is also performed in the ladle.

Generally, the ladle used in the continuous casting process has a nozzle installed at the lower part of the ladle body, and a sliding gate, which is a selectively interrupted tapping port, is installed on the nozzle to supply molten steel to a tundish.

In the continuous casting process, molten steel must be cast while continuously tapping at a constant rate. To achieve this, when molten steel is initially introduced into the ladle body, the phenomenon of molten steel flowing into the nozzle of the ladle and molten steel penetrating directly into the tapping hole and hardening is observed. To prevent this, a ladle filler made of heat-resistant powder such as sand is filled inside the nozzle.

The ladle filler prevents the penetration of molten steel by partially sintering the upper layer after molten steel flows in from an electric furnace or refining furnace, but is destroyed by the molten steel load when the sliding gate is opened for continuous operation, allowing molten steel to flow from the ladle into the tundish. , this is generally said to have naturally opened the ladle.

An example of a ladle filler according to the prior art is disclosed in Republic of Korea Patent Registration No. 10-1736582 (registered on May 10, 2017, hereinafter referred to as 'Patent Document 1').

Generally, before putting the ladle filler into the ladle, the ladle is preheated to a high temperature of about 500°C.

However, in the past, the sand used as a ladle filler had to be manually transported by workers each bag of sand and put into the ladle. As a result, it became difficult to put sand in the correct position through a sliding gate that had to be filled with sand, so workers had to place sand in the wrong place in the ladle. There is a problem that if it is poured frequently, the amount of sand input will gradually increase, which may cause the purity of the molten iron to deteriorate.

In particular, if the position where the ladle is transported and stopped is somewhat far away from the platform where the ladle filler is introduced, or if the space on the platform is narrow, there is a problem that the sand injection operation may become more difficult and difficult.

Additionally, in the past, workers had to manually put sand into the ladle, so if the position of the ladle was far forward on the work platform, the sand could easily fall if the worker accidentally lost his or her foot during the process of putting sand in a high-temperature atmosphere. There is a problem that safety accidents such as falls and burns may occur frequently.

In addition, in the past, workers had to manually input sand into the ladle, making it difficult for workers to avoid direct exposure to high heat, which increases work fatigue due to the input work, worsening the working environment, and reducing work efficiency. There is.

Republic of Korea Patent Registration No. 10-1736582 (registered on May 10, 2017)

The present invention was developed to solve the above problems, and the sand used as a heat-resistant filler is automatically placed in a precise position to fill the tapping hole of the iron ladle, which is somewhat distant, without the need for the operator to manually insert it one by one. By allowing the ladle to be introduced into the tapping port using a tilting rotation deployment method, safety accidents such as falling, falling, and burns caused by worker work that must be performed in a high-temperature atmosphere can be prevented in advance even when the ladle is located far forward. The purpose is to provide a tilting type sand input device for a steelmaking ladle that can prevent workers from being directly exposed to high heat, reduce work fatigue, and improve work environment and work efficiency.

In order to achieve the above object, the tilting type sand input device for the iron ladle according to the present invention is: the ladle containing the molten iron made during the iron making process is transported to one side, and the upper part is formed at a position higher than the height of the ladle. A device structure provided; a hopper provided at the top of the device structure, inside which sand input into the ladle is stored; A universal inclined pipe is provided to slope downward from the lower part of the hopper toward the ladle, and one side is movably connected to the lower part of the hopper, so that the sand stored in the hopper is transferred; And, the other side of the universal inclined pipe is movably connected, and is provided in front of the universal inclined pipe to be vertically foldable and horizontally tilted and deployable, so that when the ladle is transported to one side of the device structure and temporarily stopped, the ladle is moved to one side of the device structure. It is characterized in that it includes; a tilting arm assembly that allows sand transported from the universal inclined pipe to be injected toward the gate hole of the ladle.

Here, the tilting type sand injection device for the steelmaking ladle according to the present invention is a monitoring camera provided on one side of the tilting arm assembly to take an image of whether the end of the tilting arm assembly approaches the gate hole of the ladle. It is desirable to further include.

In addition, the tilting arm assembly is movably connected to the other side of the universal inclined pipe and has a lower portion rotatably provided to the device structure, so that when tilting is deployed, sand transported through the universal inclined pipe is moved by a screw conveyor method. A tilting transport pipe that allows transport in a horizontal direction, a tilting drive unit connected to the tilting transport pipe in a hinge structure so that the tilting transport pipe unfolds in a tilting manner when extended and causes the tilting transport pipe to be vertically folded when contracted, and the tilting A transfer drive unit provided in the transfer pipe to provide driving force so that sand is transferred by a screw conveyor when the tilting transfer pipe is tilted and deployed, and rotatably connected to the end of the tilting transfer pipe and used to rotate the sand when the tilting transfer pipe is tilted and deployed. It is preferable to include an input pipe that rotates vertically downward toward the gate hole of the ladle to allow sand to be injected into the gate hole of the ladle.

According to the present invention, sand, which is used as a heat-resistant filler to fill the tapping hole of a steelmaking ladle that is somewhat far away, does not need to be manually input by the operator, but the sand is automatically placed in a precise position by the tilting rotation method of expanding the sand to the tapping hole of the ladle. By allowing it to be put in, safety accidents such as falling, falling, and burns caused by worker work that must be performed in a high-temperature atmosphere can be prevented in advance even at locations far ahead of the ladle, and workers are prevented from being directly exposed to high heat. Thus, it is possible to provide a tilting type sand input device for a steel ladle that can reduce work fatigue and improve work environment and work efficiency.

In particular, even if the location where the ladle is transported and stopped is somewhat far from the platform where the ladle filler is placed or the space on the platform is narrow, the tilting rotation deployment method minimizes the space occupied by the device, making installation and sand injection operations easier. It is possible to provide a tilting type sand input device for a steelmaking ladle that can be used.

Figure 1 is a perspective view showing a state in which the ladle is transported to one side of the tilting sand input device for the steelmaking ladle according to the present invention;
Figure 2 is an enlarged perspective view of the tilting type sand input device and ladle of the steelmaking ladle of Figure 1;
Figure 3 is a side view showing the process in which the tilting arm assembly of the tilting type sand input device for the steelmaking ladle according to the present invention is tilted and rotated horizontally in a vertically folded state;
Figure 4 is an enlarged perspective view of the tilting type sand input device for the iron ladle according to the present invention;
Figure 5 is a side view of the tilting type sand input device of the steelmaking ladle of Figure 4;
Figure 6 is an enlarged perspective view of the hopper of Figure 4;
Figure 7 is a side view of the hopper and universal inclined pipe according to the present invention;
Figure 8 is a perspective view of a tilting arm assembly according to the present invention;
Figure 9 is a side view of the tilting arm assembly of Figure 8;

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

As shown in FIGS. 1 to 4, the tilting type sand input device for the iron ladle according to the present invention has a ladle (10) containing molten iron made during the steelmaking process transported to one side and the ladle (10) A device structure 100 whose upper part is formed at a position higher than the height, a hopper 200 provided at the top of the device structure 100 and inside which the sand input into the ladle 10 is stored, and a hopper 200 ) is provided at a downward slope from the lower part of the ladle 10, and one side is movably connected to the lower part of the hopper 200, so that the sand stored in the hopper 200 is transferred, a universal inclined pipe 300, and a universal inclined pipe The other side of (300) is movably connected and is provided in front of the universal inclined conduit (300) for vertical folding and horizontal tilting deployment, so that when the ladle (10) is transported to one side of the device structure (100) and temporarily stopped. It includes a tilting arm assembly 400 that allows sand transported from the universal inclined pipe 300 to be injected toward the gate hole of the ladle 10.

Accordingly, as shown in FIG. 3, the sand used as a heat-resistant filler to fill the tapping hole of the steelmaking ladle 10, which is somewhat distant, is automatically placed in a precise position without the operator having to manually insert it into the ladle. By allowing it to be introduced into the gate hole, which is the tapping port of (10), by a tilting rotation deployment method, the ladle 10 is positioned far forward to prevent safety accidents such as falling, falling, or burns caused by worker work that must be performed in a high-temperature atmosphere. It is also possible to provide a tilting type sand input device for a steelmaking ladle that can prevent safety in advance, prevent workers from being directly exposed to high heat, reduce work fatigue, and improve the working environment and work efficiency.

As shown in FIGS. 1 to 3, the device structure 100 includes a platform supported by a plurality of support pillars spaced upward from the installation surface.

As shown in FIGS. 4 to 7, the hopper 200 is supported by a hopper support 205 provided long at the top of the platform of the device structure 100, and the upper internal space is wide and the lower internal space is is formed to become gradually narrower toward the bottom, and is provided with an injection opening/closing cover 210 that can be opened and closed by rotating on both left and right sides at an open upper inlet so that sand transported from the outside can be injected into the inside, and an injection opening/closing cover 210. A cover opening/closing drive unit 220 is connected to the cover and provides driving force to open and close the injection opening/closing cover 210 to both left and right, and a cover opening/closing drive unit 220 is connected to the cover opening/closing cover 210 horizontally in the direction in which the injection opening/closing cover 210 is opened/closing left and right at the lower part where the internal space gradually narrows. A pair of heating units 230 that are provided side by side in the direction and heat the sand injected into the inside of the hopper 200, and a pair of heating units 230 that are provided in the lower part of the heating unit 230 and injected into the inside of the hopper 200. The hopper (200) is provided between a vibrator (240) that vibrates and shakes so that it is smoothly supplied to the universal inclined pipe (300), the hopper (200), and the hopper supporter (205) that supports the hopper (200) with respect to the platform. It includes an impact buffer 250 that is elastically supported against the hopper support 205.

Accordingly, the injection opening and closing cover 210 can be automatically opened and closed by the operation of the cover opening and closing driving unit 220 to automatically and easily supply sand to the hopper 200, and the heating unit 230 can be used to automatically open and close the injection opening and closing cover 210. By preheating the sand stored in the internal space of (200) before being supplied to the universal inclined pipe (300), it is possible to easily prevent the sand from freezing in winter, and the sand can be easily prevented from freezing in the winter by Sand can be supplied smoothly by the vibrator 240, and when a vibration load is applied to the hopper 200 by the vibrator 240, the vibration to the hopper 200 is smoothed by the shock buffer 250. It is transmitted and can prevent the hopper 200 from being damaged by vibration or being separated from the hopper support 205.

At this time, the sand transferred and injected into the hopper 200 is contained in a bag in the form of a ton bag, and when the injection opening and closing cover 210 is opened, the entire ton bag is injected into the hopper 200 and the screw blade provided in the hopper 200 The bag is torn by a device (not shown), and only the sand is temporarily stored in the hopper 200. The cover opening/closing drive unit 220 is provided with an air cylinder operated by pneumatic pressure, and the shock buffer unit 250 is a coil spring. It is desirable to provide it in the form of.

As shown in FIGS. 3 and 5, the universal inclined pipe 300 has one side movably connected to the lower part of the hopper 200 and the other side movably connected to the tilting arm assembly 400, and on one side It is provided to gradually slope downward toward the other side so that the sand that falls from the hopper 200 and flows in is transported by its own weight toward the tilting arm assembly 400.

Accordingly, one side of the universal inclined pipe 300 is flexibly connected to the lower part of the hopper 200 and the other side is flexibly connected to the tilting arm assembly 400, so that even during the tilting operation of the tilting arm assembly 400 The universal inclined pipe 300 can be prevented from being separated from the hopper 200 or the tilting arm assembly 400.

As shown in FIGS. 3 and 8, the tilting arm assembly 400 is movably connected to the other side of the universal inclined pipe 300, and has a lower portion rotatably provided to the device structure 100, so that the universal tilting arm assembly 400 can be tilted when deployed. A tilting transport pipe 410 that allows the sand transported through the inclined pipe 300 to be transported in the horizontal direction by a screw conveyor method, and a hinged structure connected to the tilting transfer pipe 410, so that when extended, the tilting transfer pipe 410 ) is provided in the tilting transport pipe 410 and a tilting drive unit 420 that causes the tilting transport pipe 410 to be vertically folded when contracted, so that when the tilting transport pipe 410 is tilted and deployed, sand is transferred to the screw conveyor. The transfer drive unit 430, which provides driving force for transfer in this way, is rotatably connected to the end of the tilting transfer pipe 410 and moves vertically downward toward the gate hole of the ladle 10 when the tilting transfer pipe 410 is tilted. It includes an input pipe 440 that rotates and expands to inject sand into the gate hole of the ladle 10.

Accordingly, until the approach of the ladle 10, the tilting transfer pipe 410 and the input pipe 440 are vertically folded, and when the ladle 10 approaches one side of the device structure 100 and stops for a moment, the tilting transfer occurs. As the pipe 410 is tilted and rotated in the horizontal direction toward the ladle 10, the input pipe 440 is rotated and lowered with respect to the tilting transfer pipe 410 so that its end is directed toward the inside of the ladle 10, toward the gate hole. By ensuring that the end of the input pipe 440 is accurately positioned, sand can be automatically and conveniently injected into the gate hole of the ladle 10 at a precise location without the need for the operator to directly inject sand one by one into the ladle 10 that is far away. there is.

In addition, even if the location where the ladle 10 is transported and stopped is somewhat far away from the sand injection platform or the space of the platform is narrow, the space occupied by the device is minimized by the tilting rotation deployment method, allowing installation of the device and sand injection. It can make work operation easier.

As shown in FIGS. 8 and 9, the tilting transfer pipe 410 is provided in the form of a long hollow pipe, and when vertically folded, the transfer outlet 411 provided at the top and the platform of the device structure 100 A plurality of support links 413 provided between the upper part and the end of the tilting transfer pipe 410, and provided between the support links 413 and the tilting transfer pipe 410 and the upper part of the platform of the device structure 100 to perform tilting transfer. A tilting hinge 415 is provided to support the pipe 410 so that it can be rotated to be tilted or vertically folded by the driving force of the tilting drive unit 420, and a transfer outlet 411 is rotatably provided at the upper part when the pipe 410 is vertically folded. When deployed, it rotates downward with respect to the tilting transfer pipe 410 and includes an input hinge link 417 connected to the end so that the input pipe 440 can be rotated downward.

Accordingly, when the tilting drive unit 420 is extended and the tilting transfer pipe 410 is tilted and deployed, the input pipe 440 forms an almost right angle to the tilting transfer pipe 410 by the input hinge link 417 and the ladle 10 ) is rotated downward toward the gate hole, and the sand transported along the tilting transport pipe 410 by the drive of the transport driver 430 flows into the input pipe 440 through the transfer outlet 411 and enters the ladle 10. It can be ensured that it is accurately input into the gate hole.

As shown in FIGS. 8 and 9, the tilting drive unit 420 is provided as a power cylinder connected to the upper part of the platform of the device structure 100 in a hinged structure, and has a jack at the lower part as a left and right horizontal movement adjustment means. It is preferable that a screw 421 is provided.

The transfer drive unit 430 is preferably provided to include a gear motor.

As shown in FIGS. 3 and 9, the input pipe 440 is provided in the form of a long hollow pipe, and when vertically folded, an injection guide portion 441 in the form of a funnel is provided at the top, and is a tilting transfer pipe. When the tilting device (410) is deployed, it is connected so that it can rotate downward by the insertion hinge link (417).

Accordingly, when the tilting transfer pipe 410 is tilted and deployed toward the ladle 10, the input pipe 440 is directed downward toward the gate hole of the ladle 10, and the sand transferred through the tilting transfer pipe 410 is transferred. When the sand is discharged through the outlet 411, it is delivered without loss through the input guide unit 441, allowing the sand to be easily injected into the exact location through the gate hole of the ladle 10.

Meanwhile, as shown in FIGS. 8 and 9, the tilting type sand input device for the ironmaking ladle according to the present invention is provided on one side of the tilting arm assembly 400, and the end of the tilting arm assembly 400 is positioned at the ladle 10. ) It is desirable to further include a monitoring camera 500 that captures an image of whether the device is approaching the gate hole.

Accordingly, the operator can easily monitor in real time through the monitoring camera 500 whether the end of the input pipe 440 toward the gate hole of the ladle 10 is accurately approached, so that the input pipe 440 The injection of sand through can be done more precisely at the correct location toward the gate hole of the ladle (10).

Here, the device structure 100 is connected to the monitoring camera 500 through wired and wireless communication so that the tilting deployment and sand discharge operation of the tilting arm assembly 400 are automatically controlled through the image captured through the monitoring camera 500. A control unit may be provided.

As an embodiment of the present invention, the monitoring camera 500 is preferably made of a material with heat resistance of approximately 200°C.

Although the present invention has been described in detail only with respect to the specific embodiments described, it is obvious to those skilled in the art that various variations and modifications can be made within the technical scope of the present invention, and such variations and modifications fall within the scope of the attached utility model registration claims. It's natural.

100: device structure 200: hopper
210: Injection opening/closing cover 220: Cover opening/closing driving unit
230: Heating unit 240: Vibrator
250: Shock buffer 300: Universal inclined pipe
400: Tilting arm assembly 410: Tilting transfer pipe
411: transfer outlet 413: support link
415: tilting hinge 417: insertion hinge link
420: Tilting driving unit 421: Jack screw
430: transfer driving unit 440: input pipe
441: Insertion guide unit 500: Monitoring camera

Claims (3)

A ladle (10) containing molten iron produced during the steelmaking process is transported to one side, and an apparatus structure (100) provided with an upper portion formed at a higher position than the height of the ladle (10);
A hopper 200 provided at the top of the device structure 100 and storing sand input into the ladle 10 therein;
A universal slope is provided to slope downward from the lower part of the hopper 200 toward the ladle 10, and one side is movably connected to the lower part of the hopper 200, allowing the sand stored in the hopper 200 to be transferred. pipeline (300); and
The other side of the universal inclined pipe 300 is movably connected, and is provided in front of the universal inclined pipe 300 to be vertically foldable and horizontally tiltable, so that the ladle 10 is connected to the device structure 100. A tilting arm assembly (400) that, when transported to one side and temporarily stopped, allows sand transported from the universal inclined pipe (300) to be injected toward the gate hole of the ladle (10);
A tilting type sand input device for a steelmaking ladle, comprising a. According to paragraph 1,
It further includes a monitoring camera 500 provided on one side of the tilting arm assembly 400 to capture an image of whether the end of the tilting arm assembly 400 approaches the gate hole of the ladle 10. A tilting type sand input device for a steelmaking ladle, characterized in that. According to claim 1 or 2,
The tilting arm assembly 400,
The other side of the universal inclined pipe 300 is movably connected and the lower part is rotatably provided to the device structure 100, so that when tilting and unfolding, the sand transported through the universal inclined pipe 300 is transferred to the screw conveyor method. A tilting transfer pipe 410 that allows transfer in the horizontal direction,
A tilting drive unit 420 connected to the tilting transport pipe 410 in a hinge structure so that the tilting transport pipe 410 is tilted and unfolded when extended and vertically folded when contracted;
A transfer driver 430 provided in the tilting transfer pipe 410 to provide driving force so that sand is transferred by a screw conveyor when the tilting transfer pipe 410 is tilted, and
It is rotatably connected to the end of the tilting transfer pipe 410, and when the tilting transfer pipe 410 is tilted and deployed, it rotates downward and vertically toward the gate hole of the ladle 10 to reach the gate hole of the ladle 10. A tilting type sand input device for a steelmaking ladle, comprising an input pipe 440 through which sand is input.