JP7383826B2 - Melt processing apparatus and method - Google Patents

Description

The present invention relates to a melt processing apparatus and method, and more particularly to a melt processing apparatus and method that can effectively prevent melt from penetrating into an injection part for a long period of time.

In steelmaking and continuous casting processes, ladles are used to contain, refine, and transport molten steel. A purging plug is provided at the bottom of the ladle, and the purging plug is connected to an argon gas utility line. During the steelmaking process, argon gas is supplied from the utility line to the purging plug, which enables the bubbling process of molten steel. In such a molten steel bubbling process, it is possible to stir the molten steel, adjust the components, float inclusions, and adjust the temperature.

On the other hand, when the molten steel bubbling process is completed, the purging plug and the argon gas utility line are separated, and the ladle is transported to the subsequent process. At this time, the molten steel in the ladle penetrates into the purging plug and is solidified. Therefore, in the past, a removable gas pipe was routed around the steel receiving truck for transporting the ladle, and gas was supplied to the purging plug via the gas pipe even while the ladle was being transported.

However, in such a conventional structure, argon gas is supplied from the argon gas utility line at the same pressure as the pressure during the bubbling process even while the steel receiving cart is moving, so excessive argon gas is supplied to the purging plug. There is an inconvenience that it is supplied. Note that there is a problem in that it is difficult to supply argon gas to the purging plug after the ladle is lifted from the steel receiving truck.

The technology behind the present invention is published in the following patent documents.

Korean Published Patent No. 10-2013-0101786 Korean Published Patent No. 10-2013-0107713

An object of the present invention is to provide a melt processing apparatus and method that can effectively prevent the melt from penetrating into the injection part for a long period of time.

The apparatus for treating a melt according to the present invention includes a container part having a space inside to accommodate the melt, and a container part attached to a lower part of the container part so as to be able to inject gas into the melt inside the container part. an injection part; a storage part that is attached to the container part and can be filled with gas; and a storage part that is arranged in the container part so as to connect the injection part and the storage part, and adjusts the gas supply pressure. The present invention is characterized by comprising a pressure regulator and a supply section having a flow rate regulator that adjusts the supply flow rate of the gas whose supply pressure has been adjusted.

The supply part includes a pipe that extends along the outer surface of the container part and connects the injection part and the storage part, and a safety valve that is attached to the pipe, and includes a pipe that connects the injection part and the storage part, and a safety valve that is attached to the pipe. The pressure regulator is attached to the piping so as to be located between the pressure regulator and the injection section, and the flow regulator is attached to the piping so as to be positioned between the pressure regulator and the injection section.

The supply section includes a first cutoff valve attached to the piping so as to be located between the safety valve and the pressure regulator, and a first cutoff valve attached to the pipe so as to be located between the first cutoff valve and the safety valve. It is characterized by comprising a discharge valve attached to the piping, and a second cutoff valve attached to the piping so as to be located between the pressure regulator and the flow rate regulator.

A plurality of the storage sections are provided, a part of the piping is branched into a plurality of branch pipes, and each branch pipe is connected to a respective storage section.

The storage section includes a pressure vessel that is connected to the piping, is filled with gas, and is replaceable; and a protection container that accommodates the pressure vessel, is attached to the outer surface of the container section, and is partially openable and closable. , comprising: a scattering prevention plate formed to cover the upper surface of the protective container; and a fixing plate that protrudes from the inner surface of the protective container and can come into contact with the pressure vessel.

The pressure vessel is formed such that the upper part thereof is convex toward the upper side, and a plurality of the fixing plates are provided, and at least one of the fixing plates is in contact with the convex part of the upper part of the pressure vessel. The pressure vessel is characterized in that vertical movement of the pressure vessel can be restrained.

The rest of the fixing plate may contact a side surface of the pressure vessel to restrain horizontal movement of the pressure vessel.

At least one of a heat shielding member and a cooling channel is provided on the inner surface of the protective container.

The melt processing apparatus is characterized in that it includes a weight adjusting section attached to the outer surface of the container section at a position horizontally facing the storage section with the container section in between.

The weight adjustment section is characterized in that at least a portion of the weight adjustment section is disposed so as to be movable in the horizontal direction along the outer surface of the container section so as to adjust the center of gravity.

The method for processing a melt according to the present invention includes the steps of: preparing a container part that is movable together with a storage part filled with gas; and moving the container part containing the melt from a first position to a second position. a step of supplying gas to an injection section attached to the lower part of the container section so as to inject the gas into the molten material inside the container section; The present invention is characterized in that it includes the steps of adjusting the supply pressure, and adjusting the supply flow rate of the gas whose supply pressure has been adjusted.

The step of adjusting the pressure includes adjusting the supply pressure to a reference pressure that is lower than the internal pressure of the utility line in at least one of the first position and the second position and higher than the melt pressure. It is characterized by including a process of reducing the pressure.

The step of adjusting the pressure may include the step of reducing the supply pressure to a reference pressure that is lower than the filling pressure of the reservoir and higher than the pressure of the melt.

The reference pressure is characterized in that it is determined according to the height of the molten material inside the container section.

The process of adjusting the flow rate includes a process of increasing or decreasing the supply flow rate so that the gas follows a preset reference flow rate while maintaining the supply pressure.

The method for treating the molten material includes a step of preventing temperature from being transferred from the container section to the storage section, a step of preventing flying debris caused by the molten material from contaminating the storage section, and a step of preventing the storage section from being contaminated by flying debris caused by the molten material. When the internal pressure of the gas suddenly increases, a part of the piping through which the gas flows is opened to prevent fluctuations in the supply pressure.

The method for processing the melt may include a step of applying weight to an opposite side of the storage section with the container section as the center to prevent the center of gravity of the container section from being biased.

The method for processing the melt may include a step of moving the point of application of the weight toward the storage portion in accordance with the amount of gas consumed.

The molten material is characterized in that it contains at least one of molten steel and slag.

According to the present invention, gas can be supplied to the injection part over a long period of time at a predetermined pressure and flow rate using a storage part separated from a utility line. Additionally, while the gas prefilled in the reservoir is consumed and the pressure in the reservoir decreases, it is possible to maintain the gas supply pressure and supply flow rate at desired reference values using a pressure regulator and a flow rate regulator. can. At this time, by first adjusting the gas supply pressure and then adjusting the supply flow rate of the gas whose pressure has been adjusted, the gas supply pressure and supply flow rate can be stably maintained over a long period of time. This effectively prevents the molten material from penetrating into the injection section, which is directly exposed to the molten material, for a long period of time while the container section undergoes the entire process cycle of the steelmaking process and continuous casting process multiple times. be able to. Therefore, the service life of the gas injection part can be extended, and the container part can be operated smoothly, so that the productivity of the steel manufacturing process and the continuous casting process can be improved.

FIG. 1 is a schematic diagram of a melt processing apparatus according to an embodiment of the present invention. FIG. 1 is a plan view of a melt processing apparatus according to an embodiment of the present invention. FIG. 1 is a side view of a melt processing apparatus according to an embodiment of the present invention. FIG. 2 is a rear view of a melt processing apparatus according to an embodiment of the present invention. FIG. 2 is a conceptual diagram of a supply unit according to an embodiment of the present invention. It is a conceptual diagram of the supply part concerning the 1st modification of the present invention. It is a conceptual diagram of the supply part concerning the 1st modification of the present invention. FIG. 1 is a front view of a melt processing apparatus according to an embodiment of the present invention. It is a schematic diagram of the weight adjustment part concerning the 2nd modification of the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings. The present invention is not limited to the following embodiments, but may be embodied in various different forms. These embodiments of the invention are provided so that this disclosure will be thorough and complete. Like numbers refer to like components in the drawings.

The melt processing apparatus and method according to the embodiments of the present invention are applicable to various melt processing steps in various industrial fields. Hereinafter, embodiments of the present invention will be described in detail with reference to a ladle used for storing, refining, and transporting molten steel in a steel manufacturing process and a continuous casting process in the iron manufacturing field.

FIG. 1 is a schematic diagram showing a melt processing apparatus according to an embodiment of the present invention, and FIGS. 2(a) and 2(b) show the upper and lower parts of a container section according to an embodiment of the present invention. FIG.

A melt processing apparatus according to an embodiment of the present invention will be described in detail based on FIGS. 1 and 2.

The molten material processing apparatus according to the embodiment of the present invention includes a container part 100 having a space inside to accommodate the molten material M, and a container part 100 having a space therein so as to be able to inject gas into the molten material M inside the container part 100. An injection section 200 attached to the lower part of the section 100, a storage section 300 attached to the container section 100 and capable of being filled with gas, and arranged in the container section 100 so as to connect the injection section 200 and the storage section 300. The supply unit 400 includes a pressure regulator 430 that adjusts the gas supply pressure and a flow rate regulator 440 that adjusts the supply flow rate of the gas whose supply pressure has been adjusted.

The molten material M may include at least one of molten steel and molten slag. Needless to say, the type of melt M may vary widely. Note that the gas may contain an inert gas. The inert gas may include, for example, argon gas. Needless to say, there may be a wide variety of gas types.

The container section 100 can accommodate the melt M therein. The container section 100 can be used for storing, refining, and transporting molten steel in a steel manufacturing process and a continuous casting process, and can be used for storing and transporting slag. Such a container section 100 may include a container body 110, a protruding member 120, a locking member 130, a receiving member 140, and a discharge member 150.

The container body 110 may have a cylindrical shape, for example. The container body 110 may have a space inside and may have an open top. The melt M can be accommodated inside the container body 110. The container body 110 may include a bottom plate and side walls. The bottom plate may have a disk shape, for example, and may extend in the horizontal direction. At this time, the horizontal direction may cover the left-right direction and the front-back direction. The side wall may be in the shape of a hollow cylinder and may extend in the vertical direction. Note that the side wall may be attached by edging the peripheral edge of the upper surface of the bottom plate. Needless to say, the container body 110 described above may have a wide variety of shapes and structures.

The protruding member 120 may protrude from the outer peripheral surface of the side wall of the container body 110, or may extend along the outer peripheral surface. A plurality of protruding members 120 may be provided or may be arranged in the vertical direction. The locking members 130 may be arranged as a pair, separated from each other in the left-right direction, and attached to both sides of the upper part of the side wall of the container body 110. Further, the locking member 130 may be coupled to a main hoisting hook (not shown) of a crane (not shown). The container portion 100 may be supported by the main winding hook and wound up by the locking member 130. Meanwhile, a tilting arm (not shown) may be provided on the lower surface of the bottom plate of the container body 110 so as to be coupled to an auxiliary hoisting hook (not shown) of a crane. The container part 100 can be tilted by pulling the tilting arm upward using the auxiliary winding hook.

A plurality of receiving members 140 may be provided, and may be attached to the peripheral edge of the lower surface of the bottom plate of the container body 110 while being spaced apart from each other in the horizontal direction. When the container body 110 is placed on a steel receiving truck (not shown) and a ladle turret (not shown), a predetermined separation space is secured under the bottom plate of the container body 110 by the receiving member 140. becomes possible. The discharge member 150 may be attached to the upper end of the side wall of the container body 110 between the pair of locking members 130. The ejection member 150 and the tilting arm may be separated from each other in the front-rear direction. The ejection member 150 may be located in front of the locking member 130. The discharge member 150 may have a concave discharge passage provided on its upper surface. The discharge channel may extend in the front-rear direction. When the container part 100 is tilted, the melt M can be discharged to the front of the container body 110 through the discharge channel. That is, the front may mean the direction in which the melt M is discharged from the container section 100.

FIG. 3 is a side view showing a melt processing apparatus according to an embodiment of the present invention, and FIG. 4 is a rear view showing a melt processing apparatus according to an embodiment of the present invention. Note that FIG. 5 is a conceptual diagram for explaining the supply unit according to the embodiment of the present invention.

Based on FIGS. 3 to 5, the injection section, storage section, and supply section of the melt processing apparatus according to the embodiment of the present invention will be explained in order.

Referring to FIG. 3, the injection unit 200 may be installed at the bottom of the container body 110 to inject gas into the container body 110. For example, the injection part 200 may be attached so as to vertically penetrate the bottom plate of the container body 110. Furthermore, the upper surface of the injection section 200 may be exposed to the inside of the container body 110. Injector 200 may include a porous refractory material. For example, the injection unit 200 may be called a purging plug or a bottom plug. Further, the injection section 200 may be referred to as a nozzle or a bottom-blowing nozzle. The injection unit 200 is connected to the storage unit 300 through the supply unit 400, and can be supplied with the gas filled in the storage unit 300. Gas can be injected from the injection part 200 into the melt M inside the container part 100. When the container section 100 is used to refine the melt M, a relatively large amount of gas can be supplied to the injection section 200. Further, when the container section 100 is used for storing and transporting the melt M, a relatively small amount of gas can be supplied to the injection section 200. At this time, the large amount of gas supplied to the injection section 200 can cause the molten steel in the molten material M to bubble. Furthermore, the small amount of gas supplied to the injection section 200 serves to prevent the melt M from penetrating into the injection section 200, and can be used for clean bubbling in which no bare hot water is generated on the upper surface of the melt M. be. Gas is supplied by the storage section 300 and the supply section 400, and the operation of the supply section 400 may be controlled by a control section (not shown).

The storage section 300 may be supported by the container section 100. The storage section 300 may move together with the container section 100. The storage section 300 plays the role of continuously, for example, continuously supplying gas to the injection section 200 while the container section 100 repeats the entire process cycle from the steel manufacturing process to the continuous casting process multiple times. Fulfill. That is, the storage section 300 continuously supplies gas to the injection section 200 while the container section 100 repeatedly undergoes a series of processes from converter tapping to bubbling, secondary smelting, continuous casting, and removal of slag. continues to be supplied, and serves to prevent the melt M from penetrating into the injection section 200. For this reason, the storage section 300 may be formed so that a sufficient amount of gas can be stored therein, and the stored gas can be stably supplied to the injection section 200 over a long period of time. The storage section 300 may be formed such that the gas stored therein can be safely protected from the high temperature of the molten material M and from flying debris. Such a storage section 300 may include a protection container 310, a pressure container 320, a scattering prevention plate 330, and a fixing plate 340.

Referring to FIGS. 3 and 4, the protective container 310 may be separated from the evacuation member 150 in the front-back direction. At this time, the protective container 310 may be moved away from the discharge member 150. Further, the locking member 130 may be located between the protective container 310 and the discharge member 150. The protective container 310 may be formed, for example, into a hollow cylindrical shape so that the pressure container 320 can be accommodated therein. Needless to say, the shape of the protective container 310 can be changed in various ways depending on the shape of the pressure container 320. Moreover, the pressure vessel 320 may have a wide variety of shapes within a range that does not cause interference with peripheral equipment such as a crane and a hook. Protective vessel 310 may be formed larger than pressure vessel 320 such that at least a portion of its inner surface is separated from pressure vessel 320. The protective container 310 may be attached to the outer surface of the container section 100.

That is, the protective container 310 may be attached to at least one of the side wall of the container body 110 and the protruding member 120. Specifically, the protective container 310 may be attached to the protruding member 120 and moved backward away from the side wall of the container body 110. The protective container 310 may be attached to the side wall of the container body 110 between the vertically protruding members 120. The protective vessel 310 serves to protect the pressure vessel 320 from flying objects of the melt M and high temperatures.

A portion of the protective container 310 may be opened and closed to facilitate housing the pressure container 320. To this end, the protective container 310 may include a plurality of detachable protective bodies. That is, the protective container 310 may be formed to be separable into a first protective body 311 and a second protective body 312. Each of the protective bodies 311 and 312 may have a shape obtained by cutting half of a cylinder in the vertical direction. By combining these protective bodies 311 and 312, one complete cylindrical shape can be formed. The cylindrical shape of the protective bodies 311, 312 makes it possible to minimize or prevent structural interference between the protective bodies 311, 312 and other surrounding equipment.

The protective bodies 311 and 312 may be arranged in the front-back direction, and either one of them may be attached to the container part 100. Specifically, the second protective body 312 may be attached to the protruding member 120, and the first protective body 311 may be rotatably attached to one side of the second protective body 312 in the left-right direction. . Further, the second protective body 312 is attached to the side wall of the container body 110 between the protruding members 120, and the first protective body 311 is rotatable to one side in the left-right direction of the second protective body 312. It may be attached as such. Needless to say, the first protective body 311 may be attached to the protruding member 120 or the container body 110, and the second protective body 312 may be rotatably attached to the first protective body 311.

The inside of the protective container 310 may be opened and closed by rotating the other side of the first protective body 311 in the left-right direction. A predetermined fastening member (not shown) may be provided on the other side of the first protective body 311 in the left-right direction so as to connect the first protective body 311 to the second protective body 312. . The structure of the fastening member may vary widely. Such a structure makes it easy to open and close the protective container 310.

The pressure vessel 320 may be connected to the piping 410 of the supply unit 400, may be filled with gas at high pressure, and may be replaceable. Here, the fact that the pressure vessel 320 is replaceable means that when the gas filled inside the pressure vessel 320 is consumed by a predetermined amount, the pressure vessel 320 that has consumed the gas is filled with gas at high pressure. This means replacing the pressure vessel 320 with a new one.

The pressure vessel 320 may be formed in a cylindrical shape, extending in an elongated shape in the vertical direction, and having a predetermined diameter in the horizontal direction. Needless to say, the extending direction and shape of the pressure vessel 320 may vary widely. Pressure vessel 320 may be housed and protected within protective vessel 310. The pressure vessel 320 may be filled with gas at high pressure. Here, high pressure may refer to a pressure higher than the pressure of a utility line, which will be described later. Pressure vessel 320 may also be referred to as a gas storage vessel.

The pressure vessel 320 is separated from a utility line installed in at least one of the steel manufacturing process equipment and the continuous casting process equipment, and can be used independently. That is, the pressure vessel 320 may be a separate component from the utility line. The pressure vessel 320 can be filled with gas using a separate filling equipment (not shown), and can be filled with gas at a pressure higher than the internal pressure of the utility line. The supply pressure of the gas supplied from the pressure vessel 320 to the injection unit 200 via the supply unit 400 may be lower than the pressure of the utility line. At this time, the pressure of the utility line may also refer to the supply pressure of gas flowing inside the utility line.

The volume of pressure vessel 320 may be approximately 52 liters. Needless to say, the size of the pressure vessel 320 depends on the size of the vessel body 110 and the overall time during which a series of steps from converter tapping to bubbling, secondary smelting, continuous casting, and slag removal are performed. capacity may vary. The pressure vessel 320 may have a gas filling pressure in a range of 6 to 7 times the gas supply pressure of the utility line, preferably in a range of 6.1 to 6.6 times. . That is, the pressure vessel 320 may have a gas filling pressure in a range of, for example, 110 bar to 120 bar. The filling pressure refers to the pressure of gas that can be supplied to the pressure vessel 320 when filling the pressure vessel 320 with gas. When the pressure vessel 320 is fully filled with gas, the internal pressure of the pressure vessel 320 can be equal to the filling pressure. That is, the pressure of the gas in the pressure vessel 320 at the time when the filling of the pressure vessel 320 is completed is referred to as the filling pressure. Furthermore, the pressure of the gas inside the pressure vessel 320 while the pressure vessel 320 is in use is referred to as internal pressure. The filling pressure range of such a pressure vessel 320 may be significantly higher than the gas supply pressure of about 18 bar, which is the gas supply pressure of utility lines installed in steel processing equipment and continuous casting equipment. In this way, since the gas filling pressure of the pressure vessel 320 is relatively high, a large amount of gas can be filled inside the pressure vessel 320.

On the other hand, the internal pressure that the pressure vessel 320 can withstand may be higher than the above-mentioned filling pressure of the pressure vessel 320. Therefore, after the pressure vessel 320 is filled with gas at a pressure of, for example, 120 bar, the pressure vessel 320 can be stably used, and even if the pressure vessel 320 is exposed to high temperature radiant heat temporarily or for a long time. Even if the temperature rises due to exposure, the pressure vessel 320 can stably accept the accompanying expansion in gas volume. At this time, the internal pressure that the pressure vessel 320 can withstand can be referred to as the maximum internal pressure or allowable pressure of the pressure vessel 323, for example.

The pressure vessel 320 may be housed inside the protective vessel 310 in a state where the inside is filled with gas at a filling pressure of 110 bar to 120 bar, and the pressure vessel 320 may be connected to the piping 410 of the supply unit 400 inside the protective vessel 310. You can. Pressure vessel 320 may supply gas to injection unit 200 via piping 410. At this time, the supply pressure and supply flow rate of gas from the pressure vessel 320 to the injection unit 200 may be sequentially controlled by the pressure regulator 430 and the flow rate regulator 440 of the supply unit 400. When the pressure of the gas filled inside the pressure vessel 320, that is, the internal pressure of the pressure vessel 320, approaches the supply pressure of the gas to be supplied to the injection unit 200, the gas inside reaches a filling pressure of 110 bar to 120 bar. The pressure vessel 320 may be replaced with a new pressure vessel 320 filled with water and stored in the protective vessel 310.

The anti-scattering plate 330 may be formed to cover the top surface of the protective container 310. Therefore, the high-temperature radiant heat and flying debris caused by the molten material M inside the container body 310 can be blocked by the scattering prevention plate 330 before they contaminate the protective container 310. As a result, the pressure vessel 320 can be primarily protected from hot air and flying objects by the anti-scattering plate 330, and secondarily protected by the protective container 310. In this way, the storage section 300 has the scattering prevention plate 330 and the protection container 310, so that the pressure container 320 can be doubly protected safely.

For example, while the container part 100 goes through a series of processes from converter tapping to continuous casting and removal of slag, the molten material M can be discharged from the container part 100 multiple times. There is a possibility that a splash may occur and stick to the container portion 100 to form a metal base. At this time, the scattering prevention plate 330 can block the splash from reaching the protective container 310 on the upper side of the protective container 310, and can prevent the metal from sticking to the protective container 310.

Such a scattering prevention plate 330 may be provided in a detachable manner, and may be replaced before the protective container 310 is replaced. That is, without replacing the entire storage section 300, only the scattering prevention plate 330 can be replaced as needed to maintain the entire storage section 300 in a clean state.

The fixing plate 340 serves to stably support the pressure vessel 320 inside the protection vessel 310. That is, in order to suppress or prevent heat transfer from the protective vessel 310 to the pressure vessel 320, the inner side surface and inner upper surface of the protective vessel 310 are separated from the outer side surface and outer upper surface of the pressure vessel 320. At this time, the fixing plate 340 can come into contact with the pressure vessel 320 to fix the pressure vessel 320 within the protective vessel 310 . For example, the fixing plate 340 may be formed in a ring shape, and its inner circumferential surface may be in contact with the pressure vessel 320, and its outer circumferential surface may be supported by the inner side surface of the protection vessel 310. At this time, the fixed plate 340 may be formed from a plurality of pieces, for example, two split members, a part of which is supported by the first protection body 311 and the rest supported by the second protection body 312. May be supported. When the first protective body 311 and the second protective body 312 are combined, the two split-type members described above can be combined to form one fixed plate 340.

The fixing plate 340 may protrude from an inner surface of the protection container 310, for example, an inner side surface, and may contact an outer surface of the pressure vessel 320, such as an outer side surface and an outer top surface. The pressure vessel 320 may be formed such that its upper portion is convex upward. Therefore, the outer upper surface of the pressure vessel 320 can be formed to be convex upward. A plurality of fixing plates 340 may be provided, and at least one of these fixing plates, for example, the first fixing plate 341, is attached to the upper convex portion of the pressure vessel 320 , that is, the pressure vessel 320. The pressure vessel 320 may be brought into contact with the upper surface of the outside thereof, so that the vertical movement of the pressure vessel 320 can be restrained. Here, as described above, the first fixed plate 341 is formed from two split members, one of which is supported by the first protective body 311 and the other supported by the second protective body 312. It's okay.

On the other hand, among the plurality of fixing plates 340, the remainder excluding the first fixing plate 341 is referred to as a second fixing plate 342. The number of second fixing plates 342 may be at least one or more. The second fixing plate 342 is spaced below the first fixing plate 341 and comes into contact with the inner side surface of the pressure vessel 320, thereby restraining the horizontal movement of the pressure vessel 320. At this time, the second fixed plate 342 may also be formed from two split members, one of which is supported by the first protective body 311 and the other supported by the second protective body 312. good.

A separate space can be formed and maintained between the protective container 310 and the pressure vessel 320 by the fixing plate 340 described above, and the pressure vessel 320 can be stably fixed within the protective container 310. Become.

For example, the container portion 100 can be tilted from an upright position to 90° to 180° when removing slag. At this time, the fixing plate 340 can prevent the pressure vessel 320 from moving in the horizontal and vertical directions inside the protective vessel 310. Therefore, it is possible to fundamentally prevent the pressure vessel 320 from colliding with the protection vessel 310 and being damaged.

The storage section 300 may include a piping routing port 350 and an air blowing port 360. The piping routing port 350 may be formed to penetrate through the upper or lower part of the first protection body 311. The piping 410 of the supply unit 400 may be arranged so as to pass through such a piping routing port 350.

The air outlet 360 may be formed to penetrate through the lower part or the upper part of the first protective body 311. Air can flow from the outside to the inside of the protective container 310 through the air outlet 360 . The number of ventilation ports 360 may be one or more. Meanwhile, a blower (not shown) may be provided near the blower port 360 to force the flow of air. The blower may be supported by a protective container 310.

The protective container 310 may be provided with at least one of a heat shield member (not shown) and a cooling channel (not shown) on the inner surface. At this time, the separation space formed between the above-mentioned protection vessel 310 and pressure vessel 320 is used as an installation space for at least one of the installation space of the heat shield member and the installation space of the cooling flow path. It is possible that

The heat shielding member may include a fireproof heat insulating material that can smoothly perform a heat shielding function even at temperatures of about 1000° C. or higher. The heat shielding member may be manufactured by melting a refractory material containing silica, alumina, etc., forming it into fibers, and then molding or weaving the material into a desired shape. For example, such a heat shielding member may be referred to as Cerakwool. The heat shielding member may be formed to wrap around at least one of the inner surface of the protection container 310 and the outer surface of the pressure container 320. Therefore, it is possible to delay the transmission of the radiant heat transmitted from the molten material M inside the container part 100 to the protective container 310 to the pressure container 320, or to block such heat transfer. A rise in the temperature of the pressure vessel 320 can be suppressed or prevented by the heat shielding member, and therefore, an increase in the internal pressure of the pressure vessel 320 can be suppressed or prevented.

The cooling channel may be disposed between the protection vessel 310 and the pressure vessel 320, and at least a portion thereof may be in contact with or exposed to the pressure vessel 320. The cooling channel may be connected to the air outlet 360 or may be connected to a utility line (not shown) for supplying refrigerant. On the other hand, the space between the protection vessel 310 and the pressure vessel 320 may be used as it is as a cooling channel. It is possible to suppress or prevent the temperature of the pressure vessel 320 from increasing due to the air or refrigerant supplied to the cooling channel. Therefore, it is possible to suppress or prevent the internal pressure of the pressure vessel 320 from increasing.

A plurality of the storage sections 300 described above may be arranged behind the container body 110. For example, two storage parts 300 may be provided, separated in the left-right direction and supported by the protrusion member 120 behind the locking member 130, or the storage parts 300 may be disposed between the protrusion members 120 and the container body 110. It may be supported on the side wall. Needless to say, the number of reservoirs 300 can be varied in various ways. By disposing a plurality of storage units 300, gas can be supplied to the injection unit 200 for a long time, and the health of the injection unit 200 can be maintained for a long time. At this time, the soundness can be determined according to the degree of penetration of the melt M into the injection part 200. That is, when the injection part 200 is not penetrated by the molten material M, or when the injection part 200 is in a state where a small amount of the molten material M is penetrated into the injection part 200 to the extent that the injection part 200 can perform its functions smoothly, the injection part 200 is assumed to maintain soundness.

In this way, by disposing a plurality of storage sections 300, the integrity of the injection section 200 can be maintained, for example, even while the container section 100 waits for a long time after removing the slag. become. On the other hand, one storage section 300 may be provided at the rear of the container body 110 .

3 and 5, the supply section 400 includes a pipe 410 that extends along the outer surface of the container section 100, and has one end connected to the injection section 200 and the other end connected to the storage section 300; A safety valve 420 attached to the other end of the piping 410, a pressure regulator 430 attached to the piping 410 so as to be located between the safety valve 420 and the injection section 200, and a pressure regulator 430 between the pressure regulator 430 and the injection section 200. and a flow rate regulator 440 attached to the piping 410 so as to be located at the same position. At this time, a portion of the pipe 410 may be branched into a plurality of branch pipes 410a, and each branch pipe 410a may be connected to each storage section 300. Specifically, the other end of the pipe 410 may be branched into a plurality of branch pipes 410a. Note that the plurality of branch pipes 410a may be connected one-to-one with the plurality of storage sections 300, respectively.

The piping 410 may have one end extended along the lower surface of the bottom plate of the container body 110 and connected to the lower part of the injection section 200 so as to connect the injection section 200 and the storage section 300. Each branch pipe 410a formed at the other end of the pipe 410 may be disposed to penetrate the protection vessel 310 and may be connected to the pressure vessel 320.

On the other hand, when one storage section 300 is provided, the other end of the pipe 410 does not need to be branched. That is, the other end of the piping 410 may be disposed to penetrate the protective vessel 310 and directly connected to the pressure vessel 320.

A connecting pipe connecting one end and the other end of the piping 410 may extend along the side wall of the container body 110. A pressure regulator 430 and a flow regulator 440 may be attached to this connecting pipe.

Safety valve 420 may be attached to piping 410. Specifically, the safety valve 420 may be attached to the branch pipe 410a outside the protective container 310. The safety valve 420 can be automatically opened when the internal pressure of the pressure vessel 320 rises to a predetermined pressure smaller than the internal pressure that the pressure vessel 320 can withstand, for example, an allowable pressure, and can discharge gas to the outside. Can be done. After a predetermined amount of time has elapsed and a predetermined amount of gas has been exhausted, safety valve 420 may be closed. When there is only one reservoir 300, the safety valve 320 may be attached to the other end of the piping 410 outside the protective container 310.

The pressure regulator 430 may be located upstream of the flow regulator 440 with respect to the flow of gas from the pressure vessel 320 to the injection unit 200. The flow rate regulator 440 may be located downstream of the pressure regulator 430 with respect to the gas flow described above. Here, upstream refers to a portion through which gas passes relatively first, and downstream refers to a portion through which gas passes relatively later.

The pressure regulator 430 may include, for example, a pressure reducing valve. Pressure regulator 430 may maintain the output pressure constant at a predetermined pressure that is less than the input pressure. The input pressure refers to the pressure that is supplied from the pressure vessel 320 to the piping 410 and input to the pressure regulator 430. Further, the output pressure refers to the pressure of the gas that passes through the input regulator 430 and is output to the inside of the pipe 410. At this time, the output pressure may be the supply pressure of gas from the pressure vessel 320 to the injection unit 200.

The pressure regulator 430 can maintain the output pressure constant even when the gas filling capacity of the pressure vessel 310 decreases and the pressure decreases. For example, the input pressure may be greater than 3 bar and less than or equal to 120 bar, and the output pressure may be 3 bar. Here, the output pressure may be determined by the height of the melt, for example molten steel. Such a pressure regulator 430 can stably supply a constant amount of gas to the injection unit 200.

On the other hand, when the pressure is adjusted in the pressure regulator 430, the gas flow rate changes rapidly, and the gas supply flow rate is controlled while maintaining the adjusted gas supply pressure and supplying the gas as it is to the injection unit 200. It is difficult to do so. Therefore, a flow rate regulator 440 is installed downstream of the pressure regulator 430, and the flow rate of the gas whose pressure has been adjusted can be adjusted to a desired supply flow rate. That is, the flow rate regulator 440 can adjust the supply flow rate of gas supplied to the injection section 200, and even if the internal pressure of the gas stored in the storage section 300 decreases, the flow rate of the gas supplied to the injection section 200 can be adjusted. The gas flow rate can be stably maintained.

The flow rate regulator 440 may receive the gas whose pressure has been adjusted while passing through the pressure regulator 430, adjust the flow rate to a desired supply rate, and output the gas into the pipe 410. Therefore, the injection unit 200 can be supplied with gas at a constant supply pressure and supply flow rate.

While the internal pressure of the pressure vessel 320 is decreasing, the flow rate regulator 440 is adjusted even though the pressure-regulated gas is supplied to the flow rate regulator 440 at an irregular flow rate while passing through the flow rate regulator 440. While passing through, the flow rate can be adjusted to a predetermined supply flow rate, for example, about 20 L/min. Therefore, gas at a pressure of 3 bar can be supplied from the flow regulator 440 to the injection unit 200 at a flow rate of 20 L/min. Meanwhile, the flow rate regulator 440 may include various types of flowmeters that can automatically adjust the flow rate while maintaining the pressure of the gas at an equal pressure.

The pressure regulator 430 and the flow rate regulator 440 described above may be controlled by a control unit (not shown), and sequentially adjust the gas supply pressure and supply flow rate while mechanically operating under the control of the control unit. You can. Moreover, the pressure regulator 430 and the flow rate regulator 440 may adjust the magnitude of the set supply pressure and the set supply flow rate under the control of the control unit. That is, if it is desired to reduce the supply pressure, the control unit can control the pressure regulator 430 to reduce the pressure at the outlet of the pressure regulator 430, if necessary. Note that, if it is desired to reduce the magnitude of the supplied flow rate, the control unit can control the flow rate regulator 440 to reduce the flow rate at the outlet of the flow rate regulator 440.

For example, when the height of the molten material M decreases, the pressure of the molten material M, for example, the static pressure of molten steel, decreases, so the pressure that the molten material M applies to the injection part 200 becomes smaller, and at this time, the magnitude of the supply pressure may be reduced. Note that when the temperature of the melt M changes, the fluidity and viscosity of the melt M change, and the magnitude of the supply flow rate may be changed accordingly.

The above-described supply unit 400 may not be connected to the utility lines of the steel manufacturing process and the continuous casting process. That is, in the entire process in which the container section 100 is used, gas may be supplied to the injection section 200 so as to prevent the injection section 200 from clogging only with the gas filled in the storage section 300.

FIG. 8 is a front view of a melt processing apparatus according to an embodiment of the present invention.

Referring to FIGS. 2 and 8, the melt processing apparatus according to the embodiment of the present invention may further include a weight adjustment section 500. Weight adjustment section 500 may be attached to the outer surface of container section 100 at a position facing storage section 300 in the front-rear direction with container section 100 in between. The weight adjustment section 500 can prevent the center of gravity of the container section 100 from being shifted due to the storage section 300. The weight adjustment section 500 may extend in the vertical direction, and is curved to follow the shape of the fixed bar 510 supported by the protruding member 120 and the outer peripheral surface of the container body 110 . It may also include a weight 520 that can be placed on the top surface and that can fit into the fixing bar 510. The weight adjustment section 500 may be located in front of the container body 110. The weight adjustment unit 500 may adjust the number of weights 520 to position the center of gravity of the container body 110 between the pair of locking members 130. Therefore, even if the storage section 300 is large and the storage section 300 is filled with a large amount of gas, the center of gravity of the container section 100 will not be biased toward the storage section 300.

A plurality of fixing bars 510 may be provided. The plurality of fixing bars 510 are spaced apart in at least one of the left-right direction and the up-down direction, and their upper and lower ends are respectively fitted to opposing surfaces of the protruding members 120 arranged in the up-down direction. Good too.

The weights 520 may be a bow-shaped member, have an area that can be placed on the upper surface of the protrusion member 120, and may be provided in plural and stacked one above the other. At this time, unevenness and adhesive members may be provided on the upper and lower surfaces of the weight 520. Therefore, when a plurality of weights 520 are stacked one on top of the other, they are combined and prevented from moving. The weight 520 may have a fitting groove h formed on its side surface. The fixing bar 510 may be fitted into the fitting groove h. At this time, the fitting groove h may be formed on the front side surface of the weight 520. Therefore, the weight 520 can be stably protected between the container body 110 and the fixing bar 510. Here, the front side surface refers to the side surface of the container body 110 facing forward. The rear side surface may be a side surface facing the container body 110.

According to the embodiment of the present invention, even if the pressure of the gas filled in the pressure vessel 320, for example, the internal pressure of the pressure vessel 320 fluctuates, a constant supply is stably provided to the injection unit 200 over a long period of time. Gas can be supplied at a constant pressure and supply flow rate. Note that exposure of the pressure vessel 320 to radiant heat from the melt M can be suppressed as much as possible. Therefore, it is possible to suppress or prevent the melt M from penetrating into the injection part 200 for a long time.

6 and 7 are conceptual diagrams of a supply unit according to a first modification of the present invention. Specifically, FIG. 6 is a conceptual diagram showing a connection structure of the supply section according to the first modification of the present invention when there are a plurality of storage sections, for example, two storage sections. In addition, FIG. 7 is a conceptual diagram showing the connection structure of the supply part according to the first modification of the present invention when there is one storage part.

Referring to FIG. 6, according to a first variant of the invention, the supply unit 400 includes a first shutoff valve 450 attached to the pipe 410 so as to be located between the safety valve 420 and the pressure regulator 430. , a discharge valve 460 attached to the pipe 410 so as to be located between the first shutoff valve 450 and the safety valve 420, and a discharge valve 460 attached to the pipe 410 so as to be located between the pressure regulator 430 and the flow rate regulator 440. A second shutoff valve 470 may be provided.

The first isolation valve 450 may include a manual needle valve. The first shutoff valve 450 can manually shut off the supply of gas from the storage section 300 to the supply section 400 when the container section 100 is not in use. Drain valve 460 may include a manual ball valve. The discharge valve 460 discharges the high-pressure gas accumulated in the pipe 410 between the first shutoff valve 450 and the storage section 300 when the operation of the container section 100 is restarted, and the first shutoff valve The pressure between 450 and reservoir 300 can be reduced. Therefore, the pressure regulator 430 can be prevented from being damaged when the operation of the container section 100 is restarted. The exhaust valve 460 may exhaust high pressure gas to the ventilation line L. The second shutoff valve 470 may include a manual needle valve and can be used to shut off the flow of gas between the pressure regulator 430 and the flow regulator 440, if desired.

Furthermore, the supply section 400 may further include a pressure gauge 490 attached to the piping 410 on the downstream side of the flow rate regulator 440 and a switching valve 480 attached to the piping 410 between the pressure gauge 490 and the injection section 200. .

The pressure gauge 490 can actually measure the pressure of the gas output from the flow controller 440. The measurement result of the pressure gauge 490 is passed to the control unit, and if the actual pressure measured by the pressure gauge 490 and the output pressure set to the pressure regulator 430 are different from each other, the control unit promptly informs the controller of this fact. It is possible to notify the user.

The switching valve 480 may be, for example, a three-way valve. The switching valve 480 may be selectively attached to and detached from the utility line U. If the switching valve 480 is attached to the utility line U, the switching valve 480 may close the flow of gas from the flow adjustment section 440 to the injection section 200 and open the flow of gas from the utility line U to the injection section 200. . Then, when the switching valve 480 is removed from the utility line U, the switching valve 480 may open the flow of gas from the flow rate adjustment section 440 to the injection section 200.

FIG. 9 is a schematic diagram of a weight adjustment section according to a second modification of the present invention.

Referring to FIGS. 8 and 9, the weight adjustment section 500 according to the second modification of the present invention adjusts the center of gravity of the container section 100 based on the change in weight according to the amount of gas consumed in the storage section 300. At least a portion of the container portion 100 may be disposed so as to be movable in the horizontal direction along the outer surface of the container portion 100 so as to adjust the amount of water. The weight adjustment unit 500 for this purpose may include a fixed bar 510, a weight 520, an actuator 530, and a guide rail 540.

A plurality of fixing bars 510 may extend in the vertical direction in the front of the container body 110, be arranged in plurality, be separated from each other in the left-right direction, and be arranged between the protruding members 120. A plurality of weights 520 may be provided, and may be arranged in the left-right direction, or may be stacked in the vertical direction. The group of weights 520 on the left side and the group of weights 520 on the right side may be fitted to different fixing bars 510 from each other.

The actuator 530 may be adjusted in length in the left-right direction, may be supported on the outer surface of the container body 110, or may be connected to the fixed bar 510 one-to-one. The guide rails 540 may be formed on opposing surfaces of the protruding members 120 arranged in the vertical direction, may extend in the circumferential direction of the container body 110 along the protruding members 120, and may be formed at the upper and lower ends of the fixing bar 510. may be attached.

The actuator 530 may be controlled by the control section, and when the gas filling amount of the storage section 300 is relatively large, the actuator 530 may collect the gas while moving the fixed bar 510 toward the front of the container body 110. Further, when the amount of gas filled in the storage section 300 is relatively small, the actuator 530 may spread the fixed bar 510 in the left-right direction while pulling the fixed bar 510 toward the locking member 130. As the fixed bar 510 moves, the position of the weight 520 in the front and back direction is adjusted, and therefore the center of gravity can be adjusted.

Hereinafter, a method for processing a melt according to an embodiment of the present invention will be described in detail based on FIGS. 1 to 9.

A method for processing a melt according to an embodiment of the present invention includes a step of preparing a container section 100 that is movable together with a storage section 300 filled with gas, and a step of preparing a container section 100 that is movable together with a storage section 300 filled with gas, and moving the container section 100 containing the melt M into a first container section 100. a step of transporting the melt from one position to a second position; and a step of supplying gas to an injection section 200 attached to the lower part of the container section 100 so as to inject the gas into the molten material M inside the container section 100; The process includes a process of adjusting the supply pressure of the gas supplied to the injection unit 200, and a process of adjusting the supply flow rate of the gas whose supply pressure has been adjusted.

First, a gas-filled storage section 300 and a movable container section 100 are prepared. The reservoir 300 may be filled with gas at a filling pressure of about 110 bar to 120 bar. Needless to say, the filling pressure may be in a predetermined pressure range higher or lower than the pressures mentioned above. At this time, the melt M may be stored in the container section 100. The molten material M may be at least one of molten steel and slag.

Next, the above-mentioned container section 100 containing the melt M is transported from the first position to the second position. Here, the first location may be a location where the container section 100 is currently located, and the second location may be a predetermined location to which the container section 100 is to be moved. That is, when the container section 100 transports molten steel that has been tapped in the converter to a subsequent process, the position of the converter process equipment may be the first position, and the position of the converter process equipment may be the first position, and the subsequent process, for example, the bubbling process, the secondary The second location may be the location of the equipment where the scouring step or the continuous casting step is performed.

During the above-described process, gas is supplied to the injection part 200 so that the gas can be injected into the melt M inside the container part 100. Specifically, the gas filled in the storage section 300 may be supplied to the injection section 200 using the supply section 400. Here, if the amount of gas filled in the storage section 300 decreases, there is a concern that the flow rate and flow pressure of the gas supplied to the injection section 200 will change irregularly. There is a risk that quality may deteriorate due to instability. In order to prevent this, the supply pressure of the gas supplied to the injection unit 200 is adjusted during the above-described process, and the supply flow rate of the gas whose pressure has been adjusted is adjusted.

Here, the reason why the gas supply pressure is adjusted first is to supply a stable flow rate of gas to the injection unit 200, since normally the gas flow rate fluctuates significantly after the gas pressure is adjusted. After the pressure of the gas is adjusted in the pressure adjustment section 430, the flow rate of the gas is adjusted in the flow rate adjustment section 430, and the gas is supplied to the injection section 200.

Here, the process of adjusting the pressure may include a process of reducing the supply pressure to a reference pressure that is lower than the filling pressure of the storage section 300 and higher than the pressure of the melt M. The step of adjusting the pressure may also include adjusting the supply pressure to a reference pressure that is lower than the internal pressure of the utility line in at least one of the first position and the second position and higher than the melt pressure. It may also include a step of reducing the pressure. The pressure of the melt may be the pressure at the lowest end of the melt. That is, the pressure applied by the melt to the upper surface of the bottom plate of the container section 100 may be used.

At this time, the pressure of the molten material M may be the pressure that the molten material M applies to the injection part 200, and may be, for example, the static pressure of molten steel. Further, the reference pressure may be a predetermined pressure that prevents the melt M from flowing into the injection section 200 and allows gas to be injected into the melt M through the injection section 200. Note that the reference pressure may be a predetermined pressure that prevents the formation of a bare molten metal surface on the molten steel surface when the molten material M includes molten steel and slag.

In this way, since the supply pressure is reduced to the above-mentioned reference pressure and supplied to the injection section 200, the melt M can be prevented from flowing into the injection section 200 even though a small amount of gas is used, and the melt M can be prevented from flowing into the injection section 200. It can also prevent the formation of bare water on the hot water surface. Such a reference pressure may be a pressure of approximately 3 bar. For example, such a reference pressure may be six times lower than the utility line supply pressure mentioned above.

On the other hand, as the height of the molten material m increases, the pressure of the molten material M, for example, the static pressure of molten steel increases, so the magnitude of the supply pressure must be increased by an amount commensurate with this ratio. For example, if the density of the melt is 7020 kg/m ³ , the feed pressure has to be increased by about 0.68 bar when the height of the melt m increases by about 1 m. Therefore, even if the height of the melt m changes, gas at an appropriate pressure can be supplied to the injection section 200. In this way, the reference pressure can be determined depending on the height of the melt M inside the container section 100.

Next, the supply flow rate of the gas whose supply pressure has been adjusted is adjusted. Specifically, the supply flow rate may be increased or decreased so that the gas follows a preset reference flow rate while maintaining the magnitude of the supply pressure. Therefore, even if the gas flow rate changes irregularly in the pressure adjustment section 430, the flow rate of the gas can be adjusted by the flow rate adjustment section 440 to supply gas to the injection section 200 at a constant supply flow rate. . At this time, the reference flow rate may be a gas flow rate that does not produce bare hot water on the surface of the molten material M, or a gas flow rate that prevents rapid stirring of the molten material M. Needless to say, the reference flow rate can be defined in various ways.

Meanwhile, during the above process, high temperature can be prevented from being transmitted from the container part 100 to the pressure vessel 320 of the storage part 300 using the protective container 310 and the anti-scattering plate 330. Note that it is possible to prevent the pressure vessel 320 from being contaminated by flying objects caused by the melt M.

Further, while performing the above-described process, if the internal pressure of the storage section 300 suddenly increases due to the rise in the temperature of the storage section 300 and becomes higher than a specific pressure, the supply of gas from the pressure vessel 320 to the pressure regulator 430 may be interrupted. Pressure increases rapidly. At this time, the pressure of the gas supplied to the pressure regulator 430 can be lowered by opening a part of the pipe 410 through which the gas flows, for example, the branch pipe 410a, using the safety valve 420 of the supply unit 400. Therefore, damage to the pressure regulator 430 can be prevented, and fluctuations in the supply pressure can be prevented. On the other hand, the above-mentioned specific pressure is, for example, a predetermined pressure that is higher than the filling pressure of the storage section 300 and lower than the allowable pressure that is the internal pressure that the pressure vessel 320 of the storage section 300 can withstand without being damaged. It may be a predetermined pressure selected within a range.

A process of adjusting the supply pressure and a supply flow rate of gas to prevent the temperature from being transmitted to the pressure vessel 320 while supplying the gas to the injection unit 200, a process of preventing contamination of the pressure vessel 320, and a process of preventing fluctuations in the supply pressure. and may be performed selectively. That is, at least one of these processes may be performed while the gas is supplied to the injection unit 200 after adjusting the supply pressure and flow rate of the gas.

Furthermore, while performing the above-described process, the center of gravity of the container part 100 is biased due to the method of adding weight to the container part 100 using the weight adjustment part 500 on the opposite side of the storage part 300 with the container part 100 at the center. At this time, the weight adjustment section 500 moves the point of application that applies weight toward the storage section 300 according to the amount of gas consumed in the storage section 300, thereby shifting the center of gravity. Can be held stably.

According to the above, even if the internal pressure of the pressure vessel 320 of the storage section 300 is varied, by supplying gas at a constant flow rate and fluid pressure to the injection section 200 over a long period of time, the injection section It is possible to prevent the melt M from penetrating into the injection section 200, and damage to the injection section 200 can be prevented.

The above embodiments of the present invention are for illustration of the present invention and are not intended to limit the present invention. The configurations and methods disclosed in the embodiments and their modifications of the present invention may be combined or intersected with each other to be transformed into various forms, and such modifications also apply to the present invention. It should be noted that it can be considered as falling within the range. That is, the present invention may be embodied in various forms different from each other within the scope of the claims and technical ideas equivalent thereto, and those skilled in the technical field to which the present invention pertains should understand the invention. It should be understood that various embodiments are possible within the scope of technical ideas.

100: Container part 110: Container main body 120: Projecting member 130: Locking member 140: Receiving member 150: Discharge member 200: Injection part 300: Storage part 310: Protective container 311: Protective body 312: Protective body 320: Pressure vessel 330 : Scattering prevention plate 340: Fixed plate 341: First fixed plate 342: Second fixed plate 350: Piping routing port 360: Ventilation port 400: Supply section 410: Piping 410a: Branch pipe 420: Safety valve 430: Pressure regulator 440: Flow rate regulator 450: First shutoff valve 460: Discharge valve 470: Second shutoff valve 480: Switching valve 490: Pressure gauge 500: Weight adjustment section 510: Fixed bar 520: Weight 530: Actuator 540: Guide rail

Claims (17)

a container portion having a space inside to accommodate the molten material;
an injection part attached to the lower part of the container part so as to be able to inject gas into the melt inside the container part;
a storage section that is attached to the container section and can be filled with gas;
A pressure regulator is disposed in the container unit to connect the injection unit and the storage unit, and includes a pressure regulator that adjusts the gas supply pressure and a flow rate regulator that adjusts the supply flow rate of the gas whose supply pressure has been adjusted. a supply section ;
An apparatus for processing a molten material, comprising a weight adjusting section attached to an outer surface of the container section at a position horizontally facing the storage section with the container section in between. 2. The melt according to claim 1 , wherein the weight adjustment section is disposed such that at least a portion of the weight adjustment section can be moved horizontally along the outer surface of the container section so as to adjust the center of gravity. processing equipment. The supply unit includes:
Piping that extends along the outer surface of the container section and connects the injection section and the storage section;
a safety valve attached to the piping;
Equipped with
The pressure regulator is attached to the piping so as to be located between the safety valve and the injection section, and the flow rate regulator is attached to the piping so as to be located between the pressure regulator and the injection section. The melt processing apparatus according to claim 1 or 2, characterized in that: The supply unit includes:
a first shutoff valve attached to the piping so as to be located between the safety valve and the pressure regulator;
a discharge valve attached to the piping so as to be located between the first shutoff valve and the safety valve;
a second shutoff valve attached to the piping so as to be located between the pressure regulator and the flow regulator;
The melt processing apparatus according to claim 3 , further comprising: A plurality of storage units are provided,
A portion of the piping is branched into multiple branch pipes,
4. The melt processing apparatus according to claim 3 , wherein each branch pipe is connected to a respective reservoir. The storage section is
a pressure vessel connected to the piping, filled with gas, and replaceable;
a protective container that accommodates the pressure vessel, is attached to the outer surface of the container part, and is partially openable and closable;
a scattering prevention plate formed to cover the top surface of the protective container;
a fixing plate that protrudes from the inner surface of the protective container and is capable of contacting the pressure container;
The melt processing apparatus according to claim 3 , further comprising: The pressure vessel is formed such that an upper portion thereof is convex toward the upper side,
7. A plurality of fixing plates are provided, and at least one fixing plate can contact a convex portion of an upper part of the pressure vessel to restrict vertical movement of the pressure vessel. melt processing equipment. 8. The melt processing apparatus according to claim 7 , wherein the remaining portion of the fixing plate contacts a side surface of the pressure vessel to restrain horizontal movement of the pressure vessel. 7. The molten material processing apparatus according to claim 6 , wherein at least one of a heat shield member and a cooling channel is provided on the inner surface of the protection container. providing a container portion movable with a reservoir portion filled with gas;
a step of transporting the container portion containing the melt from a first position to a second position;
supplying gas to an injection part attached to the lower part of the container part so as to inject the gas into the melt inside the container part;
a step of adjusting the supply pressure of gas supplied to the injection part;
adjusting the supply flow rate of the gas whose supply pressure has been adjusted;
including;
A method for processing a molten material, comprising the step of adding weight to the opposite side of the storage section with the container section as the center to prevent the center of gravity of the container section from becoming biased. 11. The method for treating a molten material according to claim 10 , further comprising a step of moving the point of application of the weight toward the storage portion in accordance with the amount of consumption of the gas. The process of adjusting the pressure includes:
reducing the supply pressure to a reference pressure that is lower than the internal pressure of the utility line in at least one of the first position and the second position and higher than the pressure of the melt; The method for treating a melt according to claim 10 or 11. The process of adjusting the pressure includes:
The method for processing a melt according to claim 10 or 11, comprising a step of reducing the supply pressure to a reference pressure that is lower than the filling pressure of the storage section and higher than the pressure of the melt. 14. The method for processing a molten material according to claim 12 , wherein the reference pressure is determined according to the height of the molten material inside the container section. The process of adjusting the flow rate includes:
14. The method for treating a melt according to claim 12 , further comprising the step of increasing or decreasing the supply flow rate so that the gas follows a preset reference flow rate while maintaining the supply pressure. a step of preventing temperature from being transmitted from the container section to the storage section;
a step of preventing flying debris caused by the melt from contaminating the reservoir;
When the internal pressure of the storage section suddenly increases, opening a part of the piping through which the gas flows to prevent fluctuations in the supply pressure;
11. The method for treating a melt according to claim 10 , comprising any one of the following steps. The method for processing a molten material according to claim 10 , wherein the molten material contains at least one of molten steel and slag.

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