KR101746978B1 - Annealing furnace - Google Patents

Annealing furnace Download PDF

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Publication number
KR101746978B1
KR101746978B1 KR1020150180814A KR20150180814A KR101746978B1 KR 101746978 B1 KR101746978 B1 KR 101746978B1 KR 1020150180814 A KR1020150180814 A KR 1020150180814A KR 20150180814 A KR20150180814 A KR 20150180814A KR 101746978 B1 KR101746978 B1 KR 101746978B1
Authority
KR
South Korea
Prior art keywords
annealing furnace
furnace body
lid member
lid
folding
Prior art date
Application number
KR1020150180814A
Other languages
Korean (ko)
Inventor
박석달
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020150180814A priority Critical patent/KR101746978B1/en
Application granted granted Critical
Publication of KR101746978B1 publication Critical patent/KR101746978B1/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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • F27D2001/1825—Means for moving the cover
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1808—Removable covers
    • F27D2001/1825—Means for moving the cover
    • F27D2001/1841—Means for moving the cover comprising means for rotating or moving the cover in a horizontal or quasi horizontal plane

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Abstract

A lid member rotatably installed on the gas discharge pipe to be attached to and detached from the annealing furnace body; a lid member driving unit installed on the gas discharge pipe for detachably attaching the lid member to the annealing furnace body; And a binding unit provided on an outer surface of the annealing furnace body for allowing the lid member and the annealing furnace body to closely contact with each other.

Description

Annealing furnace [0002]

The present invention relates to an annealing furnace.

The annealing furnace is a device for performing the phase annealing by the hydrogen atmosphere gas while placing the STS hot-rolled coil in a box lying down.

As shown in FIG. 1, the inner cover 32 is covered with the coil 20 laid down in the annealing furnace 10 and placed on the plate 22. Thereafter, the body 12 of the annealing furnace 12 is covered once again, a hydrogen atmosphere gas is injected into the inner cover 32, and the body 12 of the annealing furnace is heated through the burner unit 40.

In this state, the coil 20 in the inner cover 32 is annealed for a long time.

When the annealing heat treatment of the coil 20 is completed and the coil 20 is to be drawn out, the annealing furnace body 12 must be separated by a crane 50 as shown in Fig. At this time, it is also necessary to carry out separate operations for separating various auxiliary facilities such as electricity, gas, air, and exhaust.

As described above, a separate equipment such as a crane is required for opening and closing the annealing furnace 10, and the separating operation of various auxiliary equipments must also be performed, thus requiring a long operation time.

Furthermore, there is a risk that the auxiliary equipment may be damaged or a safety accident may occur during the separation operation.

Korean Patent Publication No. 2003-0053743

An annealing furnace is provided which can be opened and closed without any separate equipment such as a crane.

According to an embodiment of the present invention, there is provided an annealing furnace comprising an annealing furnace body having an inner space, a lid member rotatably installed on the gas discharge pipe to be detached from and connected to the annealing furnace body, A lid member driving unit for attaching and detaching the lid member to the body of the annealing furnace, and a binding unit provided on the outer surface of the annealing furnace body for tightly contacting the lid member and the annealing furnace body.

The lid member may include a connection portion connected to the gas discharge pipe, an extension portion extending from the connection portion, and a lid connected to the extension portion and coupled to the upper portion of the annealing furnace body.

The lid member driving unit includes a motor fixedly installed in the gas discharge pipe, a driving gear connected to the motor to transmit power, and a driven gear installed in the connecting portion to receive the power from the driving gear to rotate the lid member. .

The cover may include a plate portion having a plate shape and a circular portion disposed inside the plate portion and having a circular dome shape.

The body of the annealing furnace may have a flat plate corresponding portion corresponding to the flat plate portion.

Wherein the binding unit comprises a cylinder member provided on an outer surface of the annealing furnace body, a first folding member connected to a rod of the cylinder member at a central portion thereof to be folded and connected to both ends of the first folding member, And a second folding member that is folded in cooperation with the folding of the second folding member.

A plurality of the binding units may be spaced apart from each other along the outer surface of the annealing furnace body.

The plurality of binding units may be arranged such that the angle of the sides is 120 degrees.

The cylinder member may be fixedly installed on a mounting base extended from the body of the annealing furnace in a radially outward direction.

It can be opened and closed without any additional equipment, and it is possible to reduce the working time and to prevent the breakage of the auxiliary equipment.

1 is a schematic structural view showing an annealing furnace according to the prior art.
2 is an explanatory view for explaining a method for opening an annealing furnace according to the prior art.
3 is a schematic structural view showing an annealing furnace according to an embodiment of the present invention.
4 is an explanatory view for explaining a lid member driving unit of an annealing furnace according to an embodiment of the present invention.
5 is a cross-sectional view of Fig.
6 is an explanatory view for explaining a binding unit of an annealing furnace according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

4 is an explanatory view for explaining a lid member driving unit of an annealing furnace according to an embodiment of the present invention, and Fig. 5 is a schematic cross- 4, and Fig. 6 is an explanatory view for explaining a binding unit of an annealing furnace according to an embodiment of the present invention.

3 to 6, an annealing furnace 100 according to an embodiment of the present invention includes an annealing furnace body 110, an inner cover 120, a lid member 130, a lid member driving unit 140, and a binding unit 150.

The furnace body 110 has an internal space. For example, the annealing furnace body 110 may have a cylindrical shape with an open top. In this embodiment, the annealing furnace body 110 has a cylindrical shape, but the furnace body 110 may have a rectangular tubular shape.

The flat plate corresponding portion 112 may be provided at the upper end of the body 110 of the annealing furnace.

The inner cover 120 may be installed in the inner space of the annealing furnace body 110. That is, the inner cover 120 has an inner space so that the coil 20 mounted on the plate 22 is disposed inside the furnace body 110, and is installed in the furnace body 110.

A gas supply pipe (not shown) for supplying hydrogen gas to the inside of the inner cover 120 and a burner unit 102 for heating the inner space of the annealing furnace body 110 are installed in the furnace body 110 .

On the other hand, a mounting base 114 for mounting the binding unit 150 is provided on the outer surface of the annealing furnace body 110. The mounting table 114 may be spaced apart from the outer surface of the annealing furnace body 110 along the circumferential direction of the furnace body 110 so that the angle of incidence is 120 degrees.

The lid member 130 is rotatably installed in the gas discharge pipe 104 so as to be attached to and detached from the annealing furnace body 110.

The lid member 130 includes a connection portion 132 connected to the gas discharge pipe 104, an extension portion 134 extending from the connection portion 132, and an extension portion 134, (Not shown).

The lid 136 includes a flat plate portion 136a corresponding to the flat plate corresponding portion 114 of the furnace body 110 and a circular portion 136b disposed inside the flat plate portion 136 and having a circular dome shape, .

Also, the connection portion 132 and the extension portion 134 may be formed as a tube for gas discharge. 5, a bearing 133 for supporting the rotation of the connection part 132 may be installed in the gas discharge pipe 104. [

A gas outlet (not shown) may be formed in the lid 136 so as to discharge the gas through the extending portion 134 and the connecting portion 132. That is, the gas discharged from the annealing furnace body 110 may flow into the gas discharge pipe 104 through the gas outlet of the lid 136, the extension part 134 and the connection part 132.

As described above, the lid member 130 is rotated around the gas discharge pipe 104 and attached to and detached from the furnace body 110, so that the furnace body 110 can be easily opened.

The lid member driving unit 140 is installed in the gas discharge pipe 104 and serves to attach and detach the lid member 1030 to and from the annealing furnace body 110. The lid member driving unit 140 includes a motor 142 fixed to the gas discharge pipe 104, a driving gear 144 connected to the motor 142 to transmit power and a connecting portion 132, And a driven gear 146 for receiving power from the gear 144 and rotating the lid member 130.

That is, as to how the lid member 130 is driven, the driving gear 144 is rotated by driving the motor 142 first. Accordingly, the driven gear 146 connected to the driven gear 144 is rotated in association with the driven gear 144. [

Then, the lid member 130 is rotated by the rotation of the driving gear 144.

Meanwhile, as shown in FIG. 5, the driven gear 146 may be integrally formed with the connection portion 132. However, the present invention is not limited to this, and the driven gear 146 may be separately manufactured and fixed to the connection portion 132.

The binding unit 150 is provided on the outer surface of the annealing furnace body 110 so that the lid member 130 and the furnace body 110 are closely contacted to each other.

To this end, the binding unit 150 may include a cylinder member 152, a first foldable member 154, and a second foldable member 156.

The cylinder member 152 is fixed to a mounting base 114 formed on the outer surface of the annealing furnace body 110. On the other hand, the cylinder member 152 may be provided with an extension plate 153 so that the central portion of the first folding member 154 can be installed by the fixing pin 154a.

The first folding member 154 is connected at its center to an extension plate 153 provided on the cylinder member 152 to be folded and folded.

The second folding member 156 has one end connected to the rod 152a of the cylinder member 152 and the middle portion connected to both ends of the first folding member 154.

The second folding member 156 is folded and cooperated with the folding of the first folding member 154 by the rod 152a of the cylinder member 152 to bond the lid member 130 and the furnace body 110 together Or unbond.

A pressing plate 156a may be provided at an end of the second folding member 156. The pressing plate 156a may be disposed between the flat plate portion 136a of the lid 136 and the flat plate- 112 are in close contact with each other.

Thus, the inner space of the annealing furnace body 110 can be sealed.

On the other hand, a plurality of binding units 150 are spaced apart from each other along the outer surface of the annealing furnace body 110. As an example, the binding unit 150 may be arranged so that the angle of the interiors has 120 degrees.

When any one of the binding units 150 is disposed within the turning radius of the lid member 130, the cylinder member 152 of the binding unit 150, which is disposed within the turning radius of the lid member 130, The length of the rod 152a may be longer to prevent interference with the rod 130a.

That is, the stroke length of the cylinder member 152 may have a length that can prevent interference with the lid member 130.

In this case, the length of the first and second reinforcing members 154 and 156 may correspond to the length of the rod 152a so as to correspond to the length of the rod 152a.

The lid member 130 can be separated from the annealing furnace body 110 or coupled to the annealing furnace body 110 by rotating the lid member 130 through the lid member driving unit 140 as described above.

Accordingly, a separate equipment such as a crane may not be required for opening and closing the annealing furnace body 110.

Further, since only the lid member 130 is rotated to separate the annealing furnace body 110, it is not necessary to perform the separation operation of various auxiliary equipment. As a result, the time required for the opening and closing operations of the annealing furnace 100 can be shortened.

Furthermore, it is possible to eliminate the risk of collapse of the auxiliary equipment during the separation operation of the various auxiliary facilities, thereby eliminating the risk of safety accidents.

Hereinafter, the operation of the annealing furnace according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6. FIG.

3, the lid member 130 is rotated while the upper portion of the annealing furnace body 110 is opened to be coupled to the annealing furnace body 110. At this time, the lid member 130 is rotated through the lid member driving unit 140. That is, by driving the motor 142, the driving gear 144 and the driven gear 146 are rotated.

As a result, the lid member 130 is rotated about the gas discharge pipe 104 together with the driven gear 146. Thus, the lid member 130 is rotated, and the lid member 130 and the annealing furnace body 110 are joined.

Then, the lid member 130 and the annealing furnace body 110 come into close contact with each other by the binding unit 150. That is, after the lid member 130 is rotated to be coupled to the lid member 130 and the annealing furnace body 110, the rod 152a of the cylinder member 152 is drawn in.

Thus, the second folding member 156 to which the rod 152a of the cylinder member 152 is connected is folded. Then, the first folding member 154 connected to the second folding member 156 is spread around the fixing pin 154a.

The pressing plate 156a provided at the end of the second folding member 156 presses the flat plate portion 136a of the lid 136 and the flat plate corresponding portion 112 of the annealing furnace body 110 to form the flat plate portion 136a And the flat plate corresponding portion 112 are brought into tight contact with each other.

Thereafter, when the heat treatment of the coil 20 is completed, the binding unit 150 is driven first, and the lid member 130 and the annealing furnace body 110 become detachable. That is, the rod 152a of the cylinder member 152 is pulled out.

Thereby, the second folding member 156 to which the rod 152a of the cylinder member 152 is connected is unfolded. Then, the first folding member 154 connected to the second folding member 156 is folded around the fixing pin 154a.

The pressing plate 156a provided at the end of the second folding member 9156 is disposed apart from the flat plate portion 136a of the lid 9136 and the flat plate corresponding portion 112 of the annealing furnace body 110.

Thereafter, by driving the motor 142, the driving gear 144 and the driven gear 146 are rotated.

As a result, the lid member 130 is rotated about the gas discharge pipe 104 together with the driven gear 146. Thus, the lid member 130 is rotated and disposed apart from the furnace body 110.

The lid member 130 can be separated from the annealing furnace body 110 or coupled to the annealing furnace body 110 by rotating the lid member 130 through the lid member driving unit 140 as described above.

Accordingly, a separate equipment such as a crane may not be required for opening and closing the annealing furnace body 110.

Further, since only the lid member 130 is rotated to separate the annealing furnace body 110, it is not necessary to perform the separation operation of various auxiliary equipment. As a result, the time required for the opening and closing operations of the annealing furnace 100 can be shortened.

Furthermore, it is possible to eliminate the risk of collapse of the auxiliary equipment during the separation operation of the various auxiliary facilities, thereby eliminating the risk of safety accidents.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

100: annealing furnace
110: Annealing furnace body
120: Inner cover
130: lid member
140: lid member driving unit
150: binding unit

Claims (9)

An annealing furnace body having an inner space;
A lid member rotatably installed on the gas discharge pipe to be attached to and detached from the body of the annealing furnace;
A lid member driving unit installed on the gas discharge pipe for removing the lid member from the annealing furnace body; And
A binding unit installed on an outer surface of the annealing furnace body to closely contact the lid member and the annealing furnace body,
/ RTI >
The binding unit
A cylinder member provided on an outer surface of the annealing furnace body;
A first folding member which is folded and connected to a central portion of the extension plate of the cylinder member; And
A first end connected to the rod of the cylinder member and a second end connected to both ends of the first folding member and a rod of the cylinder member interlocked with the folding line of the first folding member, A second folding member for binding or unbinding the body;
.
The method according to claim 1,
Wherein the lid member includes a connection portion connected to the gas discharge pipe, an extension portion extending from the connection portion, and a lid coupled to the upper portion of the annealing furnace body, the lid portion being connected to the extension portion.
3. The method of claim 2,
The lid member driving unit
A driven gear connected to the motor to transmit power; and a driven gear installed in the connecting portion and adapted to receive power from the driven gear to rotate the lid member.
3. The method of claim 2,
Wherein the lid includes a plate portion having a plate shape and a circular portion disposed inside the flat portion and having a circular dome shape.
5. The method of claim 4,
And the body of the annealing furnace has a flat plate corresponding portion corresponding to the flat plate portion.
delete The method according to claim 1,
Wherein a plurality of the binding units are spaced apart from each other along the outer surface of the body of the annealing furnace.
8. The method of claim 7,
And the plurality of binding units are disposed so that the angle of the side faces is 120 degrees.
The method according to claim 1,
And the cylinder member is fixedly installed on a mounting base extended from the body of the annealing furnace in a radially outward direction.
KR1020150180814A 2015-12-17 2015-12-17 Annealing furnace KR101746978B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150180814A KR101746978B1 (en) 2015-12-17 2015-12-17 Annealing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150180814A KR101746978B1 (en) 2015-12-17 2015-12-17 Annealing furnace

Publications (1)

Publication Number Publication Date
KR101746978B1 true KR101746978B1 (en) 2017-06-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200065858A (en) * 2018-11-30 2020-06-09 주식회사 포스코 Annealing heat treatment apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830232B1 (en) 2008-02-14 2008-05-16 남호창 Hydraulic cutter
JP2012127524A (en) * 2010-12-13 2012-07-05 Sanken Sangyo Co Ltd Ceiling lid structure of vertical electric furnace
JP2015100823A (en) 2013-11-26 2015-06-04 中外炉工業株式会社 Molten metal vessel heating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100830232B1 (en) 2008-02-14 2008-05-16 남호창 Hydraulic cutter
JP2012127524A (en) * 2010-12-13 2012-07-05 Sanken Sangyo Co Ltd Ceiling lid structure of vertical electric furnace
JP2015100823A (en) 2013-11-26 2015-06-04 中外炉工業株式会社 Molten metal vessel heating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200065858A (en) * 2018-11-30 2020-06-09 주식회사 포스코 Annealing heat treatment apparatus
KR102177579B1 (en) 2018-11-30 2020-11-11 주식회사 포스코 Annealing heat treatment apparatus

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