KR101158877B1 - Ladle structure - Google Patents

Ladle structure Download PDF

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Publication number
KR101158877B1
KR101158877B1 KR1020100022338A KR20100022338A KR101158877B1 KR 101158877 B1 KR101158877 B1 KR 101158877B1 KR 1020100022338 A KR1020100022338 A KR 1020100022338A KR 20100022338 A KR20100022338 A KR 20100022338A KR 101158877 B1 KR101158877 B1 KR 101158877B1
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KR
South Korea
Prior art keywords
wall portion
refractory
ladle
fire
inclined plate
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KR1020100022338A
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Korean (ko)
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KR20110103151A (en
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김영안
김정근
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(주)인영
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Priority to KR1020100022338A priority Critical patent/KR101158877B1/en
Publication of KR20110103151A publication Critical patent/KR20110103151A/en
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Publication of KR101158877B1 publication Critical patent/KR101158877B1/en

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)

Abstract

The present invention relates to a ladle structure whose structure is improved to guide the lifting operation of the refractory flame retardant member during thermal contraction and expansion to prevent the refractory flame retardation member from escaping due to thermal expansion shrinkage.
The construction is made of steel and has an outer wall portion having a flange portion with a fixing bracket disposed on the outer side of the upper portion, and a flame retardant member formed by stacking fire-resistant lead members on the inner wall and the bottom surface to be spaced apart from the inner surface of the outer wall portion. It consists of a wall portion and guide means for guiding the movement of the refractory flame retardant member located at the top of the fire retardation member in the vertical direction of the outer wall portion.
According to the present invention, by providing a guide means for guiding the movement of the refractory edible member located at the top of the ladle, the present invention has a useful effect of preventing the separation of the kite and the wall portion.

Description

Ladle Structure {LADLE STRUCTURE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladle structure, and more particularly, to a ladle structure capable of improving the structure of the refractory and the upper flange constituting the ladle to prevent dropping of the refractory and to improve the reinforcement of the flange portion.

In general, an electric furnace is a furnace for melting scrap iron by heat generated using electricity, and is mainly used for refining metals.

The electric furnace is to produce molten steel by dissolving impurities by dissolving scrap metal by electric heat, that is, arc heat or radiant heat thereof.

The molten steel produced in the electric furnace is melted and finished by ladle through the tap and then transferred to the post process.

Then, the molten steel stored in the ladle is transferred to a continuous casting facility and pulled out in a tundish, or poured into a ingot mold to solidify the steel ingot.

The ladle is a furnace for temporarily storing molten steel for transferring or refining the molten steel as described above.

The present invention has been proposed to solve the above problems in view of the above problems, the object of which is to prevent the detachment of the refractory constituting the ladle and to reinforce the strength of the flange portion, and the structure is improved to facilitate the removal now. To provide a ladle structure.

The present invention for achieving the above object is made of steel and having an outer wall portion having a flange portion is disposed in the upper fixed bracket,

A kite and wall portion formed by stacking fire-resistant kite members on the inner wall and the bottom surface to protect the outer wall portion;

It is characterized in that it comprises a guide means disposed in the upper inside of the outer wall portion to guide the movement of the refractory wire member at the top of the laminated refractory wire members according to the vertical shrinkage / expansion.

The guide means is formed so that one surface of the refractory kit members positioned at the top of the stacked refractory kit members has an inclined surface,

And an inclined plate disposed to extend on an inner surface of the flange portion and inclined to be in surface contact with the inclined surface.

And a reinforcing piece arranged to connect the inner side of the inclined plate and the outer wall to support the inclined plate.

The guide means is disposed in the space between the inclined plate and the outer wall portion is a refractory reinforcement is integrated is placed.

The guide means further includes a support bracket portion extending from the inner side of the outer wall portion below the inclined plate.

Refractory is poured on both sides of the upper portion of the outer wall portion is provided with a fire-resistant finishing member for closing the upper portion of the outer wall portion.

Also preferably, the flange portion further includes a plurality of anchor members extending to protrude outward to fix and fix the fire resistant finishing member.

Another characteristic element of the present invention, the outer wall portion made of steel and having a flange portion with a fixing bracket disposed on the upper outside;

A kite and wall portion formed by stacking fire-resistant kite members on the inner wall and the bottom surface to protect the outer wall portion;

It is disposed on top of the outer wall portion and refractory is poured on the inside and the outside is characterized in that it comprises a fire-resistant finishing member for closing the upper both sides.

The present invention relates to a ladle structure in which the structure is improved to guide the lifting operation of the fire retardant member during heat shrinkage and expansion to prevent the fire-fighting member from leaving due to thermal expansion and contraction. By providing the guide means for guiding the movement of the refractory edible member located at the top of the field, it has a useful effect that can prevent the separation of the kite and the wall portion.

1 is a plan view showing a ladle structure according to the present invention.
2 is a cross-sectional view showing a ladle structure of the present invention.
Figure 3 is a perspective view of the ladle structure of the present invention.
Figure 4 is a perspective view showing a state in which the present invention fireproof finish member is applied.
5 is a cross-sectional view of FIG. 4.
Figure 6 is a cross-sectional view showing a state in which the fire-resistant finish member is applied to the ladle structure of the present invention.

The structure of the ladle includes an outer wall portion made of steel, and a lead and wall portion formed by stacking fire-resistant lead members on inner walls and bottom surfaces to protect the outer wall portions.

And the upper part of the ladle is provided with a fixing plate for fixing the top of the kite and the wall portion stacked on the inner wall to fix the top of the kite and the wall portion protruding inward from the outer wall portion.

However, when the refractory duct member of the kite and the wall portion has molten steel filled into the ladle main body, thermal expansion occurs due to the high temperature of the molten steel when the transfer or refining operation is performed. The case where the welded part in between is broken occurs.

Therefore, the fixing plate for fixing the kite and the wall portion in the ladle body is easily broken, so that the position of the kite and the wall portion cannot be fixed frequently. For this reason, a gap is formed between the bricks between the fire and the member of the kite and the wall portion. Some of the refractory duct members are separated by shrinkage and expansion force, thereby increasing the defect rate of the refining operation.

The present invention is to provide a ladle structure having an improved structure to guide the lifting operation during contraction, expansion by heat to prevent the separation of the refractory duct member due to thermal expansion and contraction of the lead and wall portion.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The ladle structure according to the present invention will be described with reference to FIGS. 1 to 6, and its configuration is made of steel and has an outer wall portion 100 having a flange portion 150 in which a fixing bracket 152 is disposed on an upper side thereof. In addition, the outer wall portion 100 is spaced apart from the inner surface and the flame retardant member 201 is laminated on the inner wall and the bottom surface to protect the outer wall portion 100 and the wall portion 200 and the outer wall portion 100 It is composed of a guide means for guiding the movement of the refractory duct member 201 located at the top of the fire resistance duct member 201 is disposed in the upper inside of the stack according to the vertical shrinkage / expansion of the stacked fire duct member (201).

In more detail, the guide means is formed so that one surface of the refractory kit member 201 located at the top of the stacked refractory kit members 201 has an inclined surface 201a, and extends to the upper inner side surface of the outer wall part 100. The inclined plate 310 is disposed so as to be in surface contact with the inclined surface 201a.

The inclined plate 310 has a structure that is coupled to and supported by the extension plate 320 extending in the horizontal direction from the inner surface of the flange portion 150.

The refractory material 400 is filled in the space between the outer wall part 100 and the refractory lead member 201.

In addition, a plurality of reinforcing pieces 330 are disposed between the inclined plate 310 and the inner surface of the outer wall portion 100 and integrally connected with the inner surface of the outer wall portion 100 to support the inclined plate 310. It is provided.

In the space between the reinforcing pieces 330, that is, the space between the inclined plate 310 and the outer wall portion 100, castable refractory is poured and the integrated refractory reinforcement 350 is disposed.

The edge and the wall part 200 have a structure stacked vertically at a position spaced apart from the inner side surface of the outer wall portion (100).

To this end, the lower side of the inclined plate 310 is further provided with a support bracket portion 155 which extends from the inner surface of the outer wall portion 100 to support the stacked fire-resistant duct member 201.

The support bracket portion 155 further includes a support plate 155a disposed on the lower side and extending from the inner surface of the outer wall portion 100 to support the support bracket portion 155.

In addition, the outer wall portion 100 is provided with a refractory finish member 500 for closing the inner, outer upper portion of the outer wall portion 100 by placing refractory through the formwork disposed on both sides of the upper.

Fire-resistant finish member 500 is to easily remove when the now attached to the upper portion of the flange portion 150 or the outer wall portion 100 during the receiving operation of the molten steel.

In addition, the flange part 150 is disposed such that the anchor member 152a for preventing the separation of the fire resistant finishing member 500 extends outward.

The anchor member 152a has a function of fixing the fire resistant finishing member 500 by fixing the deformed rebar to the flange part 150 by welding, for example.

Referring to the operation of the present invention having such a structure is as follows.

First, the ladle structure according to the present invention will be described with reference to the construction process of the kite and the wall portion 200. The ladle structure according to the present invention has a process of vertically stacked at a position spaced apart from the inner surface of the outer wall portion 100.

At this time, the fire retardant member 201 disposed at the top end is inclined surface 201a is formed on one side, the inclined plate 310 is disposed so that the inclined plate 310 is in surface contact.

The inclined plate 310 is supported by the reinforcement reinforcement 350 in which the reinforcing piece 330 and the castable refractory are poured.

The refractory reinforcement 350 is cemented or castable refractory is poured into the space between the outer wall portion 100 and the inclined plate 310 to solidify integrally.

In addition, before the refractory is added, a plurality of anchor members 152a are fixed to the upper one side or the other side of the outer wall portion 100 by welding.

At this time, the anchor member 152a may be disposed to have different angles to firmly fix and fix the fire resistant finishing member 500 in the manufacturing process of the fire resistant finishing member 500.

Thereafter, the fire resistant finish member 500 has a manufacturing process of installing a formwork (not shown) on the upper portion of the outer wall portion 100, and then casting the castable refractory in the form to harden.

When the molten steel is received in the ladle after the assembly process is completed, the lead and the wall portion 200 composed of the refractory twisted members 201 received heat from the hot molten steel are expanded, and the refractory twisted member 201 is expanded. As the vertical expansion occurs in the direction, the entire refractory duct member 201 is vertically lifted up.

The fire retardant member 201 located at the top of the kite and the wall part 200 is slidably moved along the inclined surface of the inclined plate 310 by the expansion force in a state of being in surface contact with the inclined plate 310.

Therefore, even if the refractory kit members 201 expand in the vertical direction, the lifting operation of the top refractory kit members 201 is guided along the inclined plate 310, so that the entire refractory kit members 201 can be prevented from falling off and falling off. Can be.

On the contrary, in the case where the lead and the wall part 200 are contracted because the heat transmitted from the molten steel is not transferred after the uppermost refractory kit member 201 is moved, the top refractory kit member 201 is inclined by its own weight. Guided by the 310, the lowering operation.

Description of the Related Art [0002]
100: outer wall portion 150: flange portion
152: fixing bracket 152a: anchor member
155: support bracket portion 200: kite and wall portion
201: refractory lead member 201a: inclined surface
310: inclined plate 320: extension plate
330: reinforcement piece 350: fireproof reinforcement
500: fireproof finish member

Claims (8)

An outer wall portion made of steel and having a flange portion protruding outwardly;
A kite and wall portion formed by stacking fire-resistant kite members on the inner wall and the bottom surface to protect the outer wall portion;
A guide means disposed at an upper inner side of the outer wall part to guide movement of the refractory twisted member positioned at the top thereof according to vertical contraction / expansion of the stacked refractory twisted members;
Refractory is poured on both sides of the upper portion of the outer wall portion is provided with a fire-resistant finishing member for closing the upper portion of the outer wall portion,
The flange portion is a ladle structure characterized in that it further comprises a plurality of anchor members extending to protrude outward to fix the fire-resistant finishing member. The method according to claim 1,
The guide means is formed so that one surface of the refractory kit members positioned at the top of the stacked refractory kit members has an inclined surface,
Ladle structure characterized in that it comprises an inclined plate disposed to extend on the inner surface of the flange portion and inclined in surface contact with the inclined surface. The method according to claim 2,
Ladle structure characterized in that it is arranged to connect the inner side of the inclined plate and the outer wall portion to support the inclined plate. The method according to claim 2,
The guide means is a ladle structure, characterized in that the refractory reinforcement is placed in the space between the inclined plate and the outer wall portion is integrated. The method according to claim 2,
The guide means is a ladle structure further comprises a support bracket portion extending from the inner side of the outer wall portion on the lower side of the inclined plate. delete delete delete
KR1020100022338A 2010-03-12 2010-03-12 Ladle structure KR101158877B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100022338A KR101158877B1 (en) 2010-03-12 2010-03-12 Ladle structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100022338A KR101158877B1 (en) 2010-03-12 2010-03-12 Ladle structure

Publications (2)

Publication Number Publication Date
KR20110103151A KR20110103151A (en) 2011-09-20
KR101158877B1 true KR101158877B1 (en) 2012-06-25

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KR1020100022338A KR101158877B1 (en) 2010-03-12 2010-03-12 Ladle structure

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103831426A (en) * 2012-11-28 2014-06-04 西林钢铁集团有限公司 Novel method for pouring steel ladle permanent layer
CN110355356A (en) * 2019-08-02 2019-10-22 武汉精鼎科技股份有限公司 A kind of molten steel pot is along integrated cast structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144255U (en) * 1989-04-27 1990-12-06
JPH1110317A (en) * 1997-06-19 1999-01-19 Nkk Corp Ladle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144255U (en) * 1989-04-27 1990-12-06
JPH1110317A (en) * 1997-06-19 1999-01-19 Nkk Corp Ladle

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