KR101767760B1 - Exhaust apparatus and method for molten metal - Google Patents

Exhaust apparatus and method for molten metal Download PDF

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Publication number
KR101767760B1
KR101767760B1 KR1020150183270A KR20150183270A KR101767760B1 KR 101767760 B1 KR101767760 B1 KR 101767760B1 KR 1020150183270 A KR1020150183270 A KR 1020150183270A KR 20150183270 A KR20150183270 A KR 20150183270A KR 101767760 B1 KR101767760 B1 KR 101767760B1
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South Korea
Prior art keywords
molten metal
storage container
pipe member
discharge
container
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KR1020150183270A
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Korean (ko)
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KR20170074320A (en
Inventor
이백
김정규
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주식회사 포스코
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Publication of KR20170074320A publication Critical patent/KR20170074320A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/19—Arrangements of devices for discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F27D3/145—Runners therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

According to an embodiment of the present invention, there is provided a molten metal discharge apparatus comprising: a storage container for storing molten metal; and one end connected to a discharge port formed in the storage container and the other end extending into the storage container, And a vortex prevention tube member having an end hole facing the lower wall portion.
According to another aspect of the present invention, there is provided a molten metal discharging method, comprising the steps of: providing the molten metal discharging device; providing an end of the extended pipe portion extending upward from the curved upper bending portion of the discharge pipe member, A molten metal storage step of filling molten metal in the storage container higher than the upper bending portion, a top sealing step of sealing the adjustment cap member by sealing the end of the extension pipe portion, and removing the lower end cap member, And an exhausting step of opening the exhaust gas.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molten metal discharge apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molten metal discharging apparatus and a discharging method, and more particularly, to a technique for facilitating discharge of molten metal.

In general, various methods have been proposed for discharging molten metal from a storage container such as furnace for dissolving and refining molten metal.

For example, there has been a method of tilting a storage vessel to discharge molten metal in the storage vessel. However, this method has a problem that a large amount of slag is discharged together with the molten metal.

To improve this, a method of discharging molten metal using the Siphon principle has been proposed. However, conventionally, in order to discharge the molten metal, a discharge pipe is provided through a lug provided at the upper part of the storage container, and a molten metal is discharged by using a vacuum pump or the like And to discharge it.

However, since such a conventional structure requires a vacuum pump or the like to be installed separately, there is a problem that the equipment is complicated and the cost for constructing the equipment is high, and the process of drawing the molten metal by the vacuum pump is necessary, There was a problem.

Meanwhile, even if a container outlet is provided at the lower end of the storage container for discharging the molten metal in the storage container, when the molten metal is discharged through the container outlet, a vortex is generated, There is a problem that the slag located on the molten metal is discharged before the molten metal.

Therefore, there is a need to study a molten metal discharge apparatus and a discharge method for solving the above-mentioned problems.

An object of the present invention is to provide a molten metal discharging device and a discharging method capable of easily discharging the molten metal while preventing the slag located on the upper surface of the molten metal from being discharged when the molten metal is discharged from the storage container .

According to an embodiment of the present invention, there is provided a molten metal discharge apparatus comprising: a storage container for storing molten metal; one end connected to a discharge port formed in the storage container and the other end extending into the storage container; And a vortex prevention tube member having an end hole facing the lower wall portion.

Further, the container outlet of the molten metal discharge apparatus according to an embodiment of the present invention may be provided in a side wall portion of the storage container.

In addition, the vortex prevention pipe member of the molten metal discharge apparatus according to an embodiment of the present invention is characterized in that the other end portion is formed to extend toward the lower wall portion of the storage container.

According to an embodiment of the present invention, there is provided an apparatus for discharging molten metal according to the present invention, wherein a top curved portion is formed in the center portion of the container outlet so as to bend upwardly and convexly, And a lower end cap member detachably attached to the other end of the discharge pipe member.

According to another aspect of the present invention, there is provided an apparatus for discharging molten metal, the apparatus comprising: an upper bending portion extending upward from the upper bending portion to be detachably attached to an end of the extending pipe portion, As shown in FIG.

The molten metal discharging apparatus according to an embodiment of the present invention may further include a solidification preventing member provided in the discharge pipe member and provided to generate heat to prevent solidification of the molten metal.

The outlet pipe member of the molten metal discharging device according to an embodiment of the present invention may be formed such that the other end portion extends to a height lower than the height at which the container outlet is formed.

The outlet pipe member of the molten metal discharging device according to an embodiment of the present invention may be provided with one end portion communicating with the outlet of the container and the lower bending portion provided between the upper bending portion and provided in a concavely curved shape downwardly, And the like.

According to another aspect of the present invention, there is provided a molten metal discharging method, comprising the steps of: providing the molten metal discharging device; providing an end of the extended pipe portion extending upward from the curved upper bending portion of the discharge pipe member, A molten metal storage step of filling molten metal in the storage container higher than the upper bending portion, a top sealing step of sealing the adjustment cap member by sealing the end of the extension pipe portion, and removing the lower end cap member, And an exhausting step of opening the exhaust gas.

According to another aspect of the present invention, in the preparing step of the molten metal discharging method, a buffer material, which is a dispersant, is supplied to the other end of the discharge pipe member that is sealed by the lower end cap member.

According to another aspect of the present invention, there is provided a molten metal discharging method, wherein when the molten metal is discharged and a slag floating on an upper surface of the molten metal contacts a lower wall portion of the storage container, And a top opening step of removing an end of the extended pipe portion.

The molten metal discharging apparatus and discharging method of the present invention can prevent a vortex from being generated when molten metal is discharged through a discharge port of a container and prevent the slag located on the upper surface of the molten metal from discharging before the molten metal There is an advantage that it is possible to prevent the problem that is caused.

In addition, the molten metal discharging apparatus and discharging method of the present invention can discharge the molten metal without inclining the storage container, and there is no need to work with a vacuum pump or the like, and the molten metal can be discharged quickly.

1 is a front view showing a molten metal discharge apparatus of the present invention.
2 is a front view showing a vortex prevention pipe member in the molten metal discharge apparatus of the present invention.
3 is a front view of the molten metal discharge apparatus of the present invention including an outlet pipe member.
4 is a front view of the molten metal discharge apparatus of the present invention including the anticoagulation member.
5A to 5F are front views showing the molten metal discharging method of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

The molten metal discharging apparatus and discharging method of the present invention relates to a technique for facilitating discharging of molten metal m and when a molten metal m is discharged through a container discharging port 11, It is possible to prevent the problem that the slag s located on the upper surface of the molten metal m is discharged before the molten metal m.

In addition, the molten metal (m) can be discharged without inclining the storage container (10), and the molten metal (m) can be discharged quickly without the need for a separate operation by a vacuum pump or the like.

FIG. 1 is a front view showing a molten metal discharging apparatus of the present invention. Referring to FIG. 1, a molten metal discharging apparatus according to an embodiment of the present invention includes a storage container 10 storing a molten metal m, And an end hole 21 facing the lower wall of the storage container 10 is formed so as to be connected to the container outlet 11 formed in the storage container 10 and the other end to extend into the storage container 10 And may include a vortex prevention member 20.

In other words, when discharging the molten metal m through the container outlet 11, the molten metal discharging apparatus of the present invention generates a vortex and generates a slag s located on the upper surface of the molten metal m. The molten metal m and the vortex prevention pipe member 20 in order to prevent the molten metal m from being discharged or being mixed with the molten metal m.

The storage vessel 10 serves as a container for storing the molten metal m and may be a furnace for melting and refining the molten metal m. The molten metal m stored in the storage vessel 10 is discharged when the molten metal is completely melted. At this time, the slag s floats on the molten metal m.

However, such slag (s) interferes with the adjustment of the composition ratio when the steel or the like is produced, thereby deteriorating the quality of the steel. Therefore, it is desirable to prevent the slag (s) from being mixed at the time of discharging the molten metal (m).

Therefore, it is necessary to discharge only the molten metal m from the storage container 10 separately from the slag s. To this end, the storage container 10 is provided with a container discharge port 11.

In other words, the storage container 10 is provided with a container discharge port 11 through which the molten metal m is discharged, and the container discharge port 11 is typically provided at the lower end of the storage container 10, The gravity induces the discharge.

When the molten metal m is discharged through the container discharge port 11, a vortex is generated in the container discharge port 11. This vortex is generated when the slag 20 positioned on the upper surface of the molten metal m, (s) is mixed with the molten metal (m) and is discharged. Therefore, in order to prevent the occurrence of the vortex, the anti-vortex tube member 20 is provided.

The container outlet 11 may be formed in the lower wall of the storage container 10 but may be formed in the side wall of the storage container 10 in order to prevent the formation of the vortex by the anti- . This is shown in FIG. 2, and details will be described later.

The vortex prevention pipe member 20 serves to prevent the occurrence of a vortex when the molten metal m is discharged to the container discharge port 11.

To this end, the vortex prevention tube member 20 has one end communicating with the container outlet 11 and the other end extending into the interior of the storage container 10.

In particular, an end hole 21 facing the lower wall of the storage container 10 is formed at the other end of the anti-vortex tube 20 that extends into the storage container 10.

In other words, since the molten metal (m) discharged through the end hole (21) of the vortex prevention pipe member (20) to the container discharge port (11) is sucked in the direction opposite to the gravity, .

The other end of the vortex restricting pipe member 20 is formed to extend downwardly of the storage container 10 so that the end hole 21 faces the lower wall of the storage container 10 . This is shown in FIG. 2, which will be described later in detail.

FIG. 2 is a front view showing a vortex prevention pipe member 20 in the molten metal discharging apparatus of the present invention. Referring to FIG. 2, the container discharging port 11 of the molten metal discharging apparatus according to an embodiment of the present invention, And is formed and provided on the side wall portion of the container (10).

This is because the container outlet 11 is preferably formed on the side wall of the storage container 10 in order to prevent the formation of the vortex by the anti-vortex tube member 20. In other words, in order for the end hole 21 formed at the other end of the anti-vortex tube member 20 connected to the container discharge port 11 to be in contact with the lower wall of the storage container 10, 11 are formed to protrude from the side wall of the storage container 10.

However, even if the container outlet 11 is formed in the lower wall portion of the storage container 10, the end hole 21 formed in the other end of the anti-vortex tube member 20, As shown in Fig.

In other words, the vortex prevention pipe member 20 of the molten metal discharge device according to the embodiment of the present invention may be formed such that the other end portion extends toward the lower wall portion of the storage container 10. [

The other end of the anti-vortex tube member 20 is extended toward the lower wall portion of the storage container 10 even when the container outlet 11 is formed in the lower wall as well as the side wall of the storage container 10, The end holes 21 may be formed to face the lower wall portion of the storage container 10.

Accordingly, it is possible to prevent the formation of the vortex when the molten metal (m) is discharged through the container discharge port (11).

FIG. 3 is a front view of the molten metal discharging apparatus of the present invention including the discharge pipe member 30. Referring to FIG. 3, the molten metal discharging apparatus according to an embodiment of the present invention is characterized in that, And the upper curved portion 31 is formed at a center portion thereof so that the molten metal m is stored in the storage container 10 And a lower end cap member 40 provided on the other end of the discharge pipe member 30 so as to be detachable.

In other words, the molten metal discharging apparatus of the present invention discharges the molten metal (m) by a siphon principle and simultaneously discharges the molten metal (m) without a separate vacuum pump An outlet pipe member 30, a lower end cap member 40, and the like.

Particularly, the discharge pipe member 30 is provided to communicate with the anti-vortex pipe member 20 through the container discharge port 11, so that the molten metal m can be discharged by the siphon principle without forming a vortex .

The discharge pipe member 30 serves to use the siphon principle, and the lower end cap member 40, the adjustment cap member 50, and the like, which will be described later, can be coupled.

That is, in order to use the siphon principle, the discharge pipe member 30 has one end communicating with the container discharge port 11 and the other end having a lower height than the lower wall portion of the storage container 10, An upwardly curved upper curved portion 31 can be formed.

When the molten metal m is filled into the storage container 10, the discharge pipe member 30 is also supplied with the molten metal m at the same height as the discharge pipe member 30, (m).

The lower end cap member 40 is coupled to the other end of the discharge pipe member 30 and the molten metal m is stored at a height higher than the maximum height of the upper bending portion 31, And is filled in the container 10. The molten metal m is filled up to the upper bending portion 31 of the discharge pipe member 30 as well as the other end portion of the discharge pipe member 30.

Thereafter, by removing the lower end cap member 40, the molten metal m in the storage container 10 is discharged to the other end of the discharge pipe member 30. This is because the pressure for pressurizing the molten metal m stored in the storage container 10 is higher than the pressure for pressurizing the molten metal m discharged to the other end of the discharge pipe member 30.

In other words, since the molten metal m contained in the discharge pipe member 30 and the molten metal m stored in the storage container 10 are connected by one fluid, the other end of the discharge pipe member 30 The molten metal (m) formed at a higher height is discharged to the other end of the discharge pipe member (30). This is also a siphon principle.

Particularly, the discharge pipe member 30 is formed to communicate with the container discharge port 11 formed in the side wall portion or the lower wall portion of the storage container 10, so that the discharge pipe member 30 can be melted It is possible to fill the metal (m), thereby facilitating the discharge of the molten metal (m).

The lower end cap member 40 serves to prevent the molten metal m from being discharged when the molten metal m is filled into the discharge pipe member 30. To this end, the lower end cap member 40 may be provided to be capable of engaging with the other end of the discharge pipe member 30. [

When the lower end cap member 40 is coupled to the other end of the discharge pipe member 30, the molten metal m may be completely filled in the upper bending portion 31 of the discharge pipe member 30 The molten metal m can be discharged to the other end of the discharge pipe member 30 by the siphon principle when the lower end cap member 40 is removed.

The molten metal discharging apparatus according to an embodiment of the present invention is detachably attached to an end of an extension pipe portion 32 formed upwardly from the upper bending portion 31, And an adjustment cap member (50) for adjusting the flow into the member (30).

The adjustment cap member 50 serves to adjust the discharge of the molten metal m through the discharge pipe member 30.

In other words, it is the siphon principle that the molten metal m is discharged to the other end of the discharge pipe member 30, and whether or not the molten metal m is discharged is determined by the opening of the other end of the discharge pipe member 30 The adjustment cap member 50 is adjusted by the height of the end portion of the molten metal m stored in the storage container 10 and the height of the top surface of the molten metal m stored in the storage container 10, The discharge cap member 30 is provided to be connected to the extension pipe portion 32 of the discharge pipe member 30 at a height higher than the height of the upper surface of the cap member 50. Therefore, .

Thus, the discharge of the molten metal m can be adjusted by the adjusting cap member 50, so that the discharge of the slag s floating on the upper surface of the molten metal m can be adjusted. In other words, the discharge of the molten metal (m) is almost completed, and at the time when the slag (s) is discharged, the adjustment cap member 50 is removed so that the extension pipe portion 32 is opened, Only the metal (m) is discharged and the discharge of the slag (s) can be prevented.

The outlet pipe member 30 of the molten metal discharge apparatus according to the embodiment of the present invention may be formed such that the other end thereof extends to a height lower than the height at which the container outlet 11 is formed.

In this case, all of the molten metal m stored up to the height of the container discharge port 11 can be removed by the siphon principle using the discharge pipe member 30.

When the container discharge port 11 is provided at the lower wall of the storage container 10 or at the lower end of the side wall of the storage container 10, most of the molten metal m is discharged through the discharge pipe member 30 So that it can be discharged to the outside.

The outlet pipe member 30 of the molten metal discharge device according to the embodiment of the present invention is provided between one end portion communicating with the container outlet 11 and the upper bending portion 31, And a downward bending portion 33 provided in a concavely curved shape.

By providing such a downward bending portion 33, it is possible to easily fill the molten metal m with the discharge pipe member 30. In other words, the molten metal m is naturally filled with the lower bending portion 33, which is lower in height than the container discharge port 11, so that it is easy to fill the molten metal m into the discharge pipe member 30 .

FIG. 4 is a front view of the molten metal discharge apparatus of the present invention including the anticoagulation member 60. Referring to FIG. 4, the molten metal discharge apparatus according to an embodiment of the present invention is provided with the discharge pipe member 30 (60) which is provided exothermally so as to prevent solidification of the molten metal (m).

The provision of the solidification preventing member 60 is advantageous in that when the molten metal m is discharged through the container outlet 11 from the inside of the storage container 10, And serves to prevent the discharge pipe member 30 from being clogged.

For this, the anticoagulation member 60 may be provided in the discharge pipe member 30, and may be provided in a configuration of generating electricity by electricity, a configuration of generating heat by a gas burner or the like, a configuration of generating heat by flowing a high- .

5A to 5F are front views showing the molten metal discharging method of the present invention. Referring to FIG. 5A to FIG. 5F, the molten metal discharging method according to another embodiment of the present invention includes the steps of preparing the molten metal discharging apparatus, The upper end portion of the extension tube portion 32 extending upward from the curved upper curved tube portion 31 of the member 30 is opened and the upper end portion of the molten metal (m) filling the upper cap member (m), a top sealing step of sealing and fitting the adjusting cap member (50) at the end of the extension tube part (32) and removing the lower cap member (40) And an exhausting step of opening the other end of the exhaust pipe 30.

The preparing step is a step of preparing the molten metal discharging apparatus of the present invention as shown in FIG. 5A.

The molten metal (m) storing step removes the adjusting cap member 50 at the end of the extension tube 32, as shown in FIG. 5B, to provide the end of the extension tube 32 in an open state , Filling the molten metal (m) with the storage vessel (10), or melting a solid metal to liquefy the molten metal (m).

At this time, the height of the molten metal m stored in the storage container 10 should be higher than the height of the upper bending portion 31. This is to discharge the molten metal (m) by the siphon principle.

The top sealing step is a step of fitting the adjusting cap member 50 to the end of the extension tube 32 as shown in FIG. 5C, and the discharging step is a step of sealing the bottom cap member 40 are opened.

According to such a top sealing step and a discharging step, the open end becomes the other end of the discharge pipe member 30. Therefore, the molten metal m in the storage container 10 can be discharged to the other end of the discharge pipe member 30 which is opened to the lowest height.

Further, in the preparing step of the molten metal discharging method according to another embodiment of the present invention, the buffer material (b), which is a dispersant, is attached to the other end of the discharge pipe member (30) closed by the lower end cap member And the like. Here, as an example of the buffer material (b), sand may be present.

This is to prevent the lower end cap member 40 from being damaged when the molten metal m is filled in the discharge pipe member 30. When the molten metal (m) is discharged to the other end of the discharge pipe member (30) by removing the lower end cap member (40), damage to the surrounding environment due to the molten metal . In other words, since the buffer material (b) is discharged immediately after the lower end cap member 40 is removed, damage to the environment or the operator can be prevented.

According to another embodiment of the present invention, the molten metal (m) is discharged, and slag (s) floating on the upper surface of the molten metal (m) And a top opening step of removing the adjusting cap member 50 to open the end of the extending tube portion 32 when the bottom end of the adjusting cap member 50 comes into contact with the bottom wall of the adjusting cap member 50.

The top opening step is a step for discharging only the molten metal m when discharging the molten metal m from the inside of the storage container 10. [ This is shown in Figs. 5E and 5F.

That is, the slag s is adjacent to the lower wall of the storage vessel 10 while the molten metal m is discharged in the discharging step, and the molten metal m , The adjustment cap member 50 is removed in FIG. 5F.

Accordingly, only the molten metal (m) can be removed from the interior of the storage container 10, and the slag (s) can be adjusted so as not to discharge.

10: storage container 11: container outlet
20: anti-vortex member 21: end hole
30: Exhaust pipe member 31: Upper bending part
32: extension tube portion 33: downward tube tube portion
40: lower end cap member 50: regulating cap member
60:

Claims (11)

A storage container for storing molten metal;
A vortex prevention tube member having one end connected to a container discharge port formed in a side wall portion or a lower wall portion of the storage container and the other end extending into the storage container and having an end hole facing the lower wall portion of the storage container; And
An upper curved portion formed to be convexly curved upward in the middle portion, and a height of the upper curved portion is lower than a height at which the molten metal is stored in the storage container;
/ RTI >
Wherein the outlet tube member is provided between an end portion communicating with the outlet of the container and the upper bending portion and provided in a shape bent downwardly downward;
And a molten metal discharge device. delete The method according to claim 1,
Wherein the vortex prevention pipe member is formed such that the other end portion extends toward the bottom wall portion of the storage container. The method according to claim 1,
A lower end cap member detachably attached to the other end of the discharge pipe member;
The molten metal discharging device further comprising: 5. The method of claim 4,
An adjusting cap member detachably attached to an end of the extended pipe portion extending upward from the upper bending portion to adjust the flow of the molten metal into the discharge pipe member;
The molten metal discharging device further comprising: 5. The method of claim 4,
A coagulation preventing member provided in the discharge pipe member and provided to generate heat so as to prevent solidification of the molten metal;
The molten metal discharging device further comprising: 5. The method of claim 4,
Wherein the outlet pipe member is formed such that the other end portion extends to a height lower than a height at which the container outlet is formed. delete A method for manufacturing a molten metal discharging apparatus, comprising the steps of: preparing a molten metal discharging apparatus according to any one of claims 4 to 7;
A molten metal storage step of opening an end portion of the extended pipe portion extending upward from the curved upper bending portion of the discharge pipe member and filling the molten metal in the storage container higher than the upper bending portion;
A top sealing step of sealing and fitting an adjusting cap member to an end of the extended pipe section; And
A discharging step of removing the lower end cap member to open the other end of the discharge pipe member;
≪ / RTI > 10. The method of claim 9,
Wherein the preparing step supplies the buffer material, which is a dispersant, to the other end of the discharge pipe member that is sealed by the lower end cap member. 10. The method of claim 9,
A top opening step of removing the adjusting cap member and opening an end of the extended pipe section when a slag floating on the upper surface of the molten metal is discharged to the bottom wall of the storage container by discharging the molten metal;
≪ / RTI >
KR1020150183270A 2015-12-21 2015-12-21 Exhaust apparatus and method for molten metal KR101767760B1 (en)

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KR101767760B1 true KR101767760B1 (en) 2017-08-14

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007061906A (en) 2005-08-05 2007-03-15 Ariake Serako Kk Device and method for transferring molten metal
JP2007130666A (en) * 2005-11-10 2007-05-31 Zeon North Kk Ladle for molten metal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007061906A (en) 2005-08-05 2007-03-15 Ariake Serako Kk Device and method for transferring molten metal
JP2007130666A (en) * 2005-11-10 2007-05-31 Zeon North Kk Ladle for molten metal

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