KR101758556B1 - Apparatus for blocking leak of heat and heating furnace having the same - Google Patents

Apparatus for blocking leak of heat and heating furnace having the same Download PDF

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Publication number
KR101758556B1
KR101758556B1 KR1020160032527A KR20160032527A KR101758556B1 KR 101758556 B1 KR101758556 B1 KR 101758556B1 KR 1020160032527 A KR1020160032527 A KR 1020160032527A KR 20160032527 A KR20160032527 A KR 20160032527A KR 101758556 B1 KR101758556 B1 KR 101758556B1
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KR
South Korea
Prior art keywords
heat
heating furnace
unit
auxiliary door
lever member
Prior art date
Application number
KR1020160032527A
Other languages
Korean (ko)
Inventor
김동민
김동석
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.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020160032527A priority Critical patent/KR101758556B1/en
Application granted granted Critical
Publication of KR101758556B1 publication Critical patent/KR101758556B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/008—Heat shields
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • 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
    • F27D1/1858—Doors
    • 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
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0062—Shields for the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/12—Covers or shieldings

Abstract

An auxiliary door unit that is mounted on the heating furnace so as to be able to ascend and descend; an auxiliary door unit that is raised and retracted in conjunction with the row rejection and suppresses heat release when the material flows in and out of the material outlet of the heating furnace; And a guide unit for guiding the lifting and lowering of the auxiliary door unit when the door is opened.

Figure R1020160032527

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat emission cutoff device and a heating furnace having the same and, more particularly, to a heat emission cutoff device for preventing heat emission from a heating furnace when a slab is introduced into a heating furnace, will be.

Generally, in order to roll a slab produced in a continuous casting machine, the slab is heated to the rolling temperature inside the heating furnace, and then the heated slab is extracted to the outside by using the extractor.

In the process of introducing the slab into the heating furnace, if the slab transported in advance for introducing the slab through the slab inlet formed in the heating furnace is positioned in front of the door of the heating furnace through the pusher, As shown in FIG.

For this purpose, the slab inlet is kept open and the slab is temporarily placed in the lower part of the door during the inflow process of the slab, and then flows into the heating furnace. Accordingly, there is a problem that heat loss is generated through slab inlets disposed on both sides of the slab.

Therefore, it is necessary to develop a device capable of preventing heat damage through the slab inlet of the heating furnace when the slab flows into the heating furnace.

Korean Patent Laid-Open No. 10-2008-0058078

There is provided a heat emission cutoff device capable of preventing heat emission from a heating furnace.

Further, there is provided a heat emission cut-off device capable of replacing the contact portion with the slab when the portion contacting the slab is worn.

There is provided a heat emission cutoff device capable of performing a lifting operation more stably at the time of ascending and descending.

The heat discharge interrupting device according to an embodiment of the present invention includes a row rejecting device installed in a heating furnace so as to be able to move up and down in a heating furnace, a heat rejecting device installed in the heating furnace, And a guide unit for guiding the lifting and lowering of the auxiliary door unit when the auxiliary door unit is lifted or lowered.

Wherein the auxiliary door unit is fixed to the row refuse and includes a frame in which a flow path through which cooling water flows is formed, a heat resistant mat fixed to the frame, and at least a part of the heat resistant mat attached to the frame, A heat-resistant plate may be provided.

The heat-resistant plate may include a first heat-resistant plate fixedly installed on the frame, and a second heat-resistant plate rotatably mounted on the first heat-resistant plate.

The guide unit includes a body installed at both ends of the auxiliary door unit, a plurality of lever members installed on the column, one of which is installed in the body and the other is installed in the heating furnace, And a holder member for fixing the lower end portion.

Wherein the plurality of lever members includes a first lever member rotatably installed at one end of a base for a first lever member installed on the body and a second lever member having one end fixed to the base for the second lever member fixedly installed on the pillar, And a third lever member connecting the lever member and the first and second lever members.

The holder member may be formed with a taper hole that is fixed to the column and facilitates the introduction of the base for the first lever member installed on the body.

The heat emission cut-off device may further include a drive unit connected to the row rejection unit to elevate the hanger unit.

The drive unit may include a drive source fixedly installed in the heating furnace, a chain having one end connected to the drive source and the other end connected to the row rejection, and a chain sprocket for guiding the movement path of the chain.

In the row rejection, a suspension member for maintaining the horizontal position may be provided.

According to an aspect of the present invention, there is provided a heating furnace including a heating furnace body having an inner space, a door for opening and closing at least one of outlets of the furnace body, and at least a front end And the above-described heat emission cutoff device.

It is possible to suppress heat emission from the heating furnace.

Since the second heat-resistant plate can be replaced when the second heat-resistant plate is worn, the life can be increased.

It is possible to suppress the shaking of the auxiliary door unit when the vehicle is lifted or lowered through the guide unit, so that the elevating operation can be performed more stably.

1 is a front view showing a state in which a heat emission cutoff device according to an embodiment of the present invention is installed in a heating furnace.
2 is a front view showing a heat emission cut-off device according to an embodiment of the present invention.
FIG. 3 is a side view of an auxiliary door unit included in the heat emission cut-off device according to an embodiment of the present invention.
4 is a plan view showing a heat emission cut-off device according to an embodiment of the present invention.
5 is a side view showing a heat emission cut-off device according to an embodiment of the present invention.
6 is an enlarged view showing part A of Fig.
7 is an explanatory diagram illustrating a drive unit of a heat emission cutoff device 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.

FIG. 1 is a front view showing a state in which a heat emission cutoff device according to an embodiment of the present invention is installed in a heating furnace, and FIG. 2 is a front view showing a heat emission cutoff device according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the heat emission cut-off device 100 according to an embodiment of the present invention includes a row rejection unit 120, an auxiliary door unit 140, and a guide unit 160, .

The row rejection 120 is installed in the heating furnace 10 so as to be movable up and down. On the other hand, the row rejection unit 120 may be connected to the drive unit 180 to be described later and elevated. As an example, the row reject 120 may include a row reject frame 122, a link 124, and a suspension member 126.

The row rejection frame 122 has a length corresponding to the length of the material inlet 12 (see FIG. 7) provided in the heating furnace 10, and serves as a mounting table to which the auxiliary door unit 140 is installed.

The connection block 124 is installed at the center of the row reject frame 122 and connected to the driving unit 180 so that the row reject 120 can be elevated. That is, the driving unit 180 is connected to the connecting rod 124 so that the row rejection unit 120 can be moved up and down.

The suspension member 126 has one end connected to the end portion of the row rejection frame 122 and the other end connected to the connecting rod 124. As described above, since the suspension member 126 is connected to the row rejection frame 122, it is possible to prevent both ends of the row rejection frame 122 from being bent.

As a result, the horizontal position of the deny frame 122 can be maintained by the suspension member 126.

The auxiliary door unit 140 is installed in the row rejection unit 120 and moves up and down in conjunction with the row rejection 120 to suppress the heat release when the material S enters the material inlet 12 of the heating furnace 10 .

7, the auxiliary door unit 140 plays a role of suppressing heat emission through the material inlet 12 when the door 20 of the heating furnace 10 opens the material inlet 12 .

A detailed description of the auxiliary door unit 140 will be given later with reference to the drawings.

The guide unit 160 serves to guide the lifting and lowering of the auxiliary door unit 140 when the auxiliary door unit 140 is moved up and down. That is, the guide unit 160 serves to guide the auxiliary door unit 140 to only linearly move for lifting the auxiliary door unit 140 when the auxiliary door unit 140 is moved up and down.

Thus, the auxiliary door unit 140 can be prevented from being lifted up and down by the guide unit 160 while being shaken.

Details of the guide unit 160 will also be described later with reference to the drawings.

Hereinafter, the auxiliary door unit 140 will be described in more detail with reference to FIG.

FIG. 3 is a side view of an auxiliary door unit included in the heat emission cut-off device according to an embodiment of the present invention.

Referring to FIG. 3, the auxiliary door unit 140 may include a frame 142, a heat-resistant mat 144, and a heat-resistant plate 146 as an example.

The frame 142 is fixed to the row rejection 120, and a flow path 142a through which the cooling water flows is formed. For example, the frame 142 may have a tubular shape through which cooling water flows, and on both sides of the frame 142, an inlet 142b through which the cooling water flows and an outlet through which the cooling water flows out may be formed.

On the other hand, the frame 142 may be fixed to the row reject frame 122 of the row reject 120, for example, by screwing.

The frame 142 may be provided with a mounting table 142c for mounting the heat resistant mat 144 and the heat resistant plate 146 and the mounting table 142c may be installed on the back surface of the frame 142 .

The heat-resistant mat 144 and the heat-resisting plate 146 may be formed in a single row along the longitudinal direction of the frame 142. In this case, the heat- And may be configured such that a plurality of segments are divided in the longitudinal direction.

The mounting base 142c may include a first mounting base 142d fixed to the frame 142 and a second mounting base 142e connected to a lower end of the first mounting base 142d.

The heat-resistant mat 144 is fixed to the frame 142. The heat-resistant mat 144 is fixed to the second mounting base 142e and is made of a material having elasticity such that it can be bent together with the heat-resistant plate 146 in the direction in which the material S flows in the flow of the material S ≪ / RTI >

On the other hand, the heat-resistant mat 144 may be configured such that a plurality of heat-resistant mats 144 are divided in the longitudinal direction of the material inlet 12. That is, a plurality of divided heat-resisting mats 144 are provided on the frame 142 to block the opening of the material inlet 12 disposed on both sides of the material S regardless of the size of the material S flowing in .

The heat-resistant plate 146 is installed on the frame 142 so as to be disposed side by side with the heat-resistant mat 144, but at least a part thereof can be attached and detached. For example, the heat-resistant plate 146 includes a first heat-resistant plate 146a fixed to the frame 142, a second heat-resistant plate 146b rotatably installed on the first heat-resistant plate 146a, ).

That is, the first heat-resistant plate 146a is fixed to the first mounting base 142d by bolts, and the hinge portion 146c is provided at the lower end of the first heat-resistant plate 146a, The lower end is rotated.

The second heat-resisting plate 146b is detachably mounted on the hinge portion 146c and can be rotated. On the other hand, the second heat-resisting plate 146b can be fastened to the hinge portion 146c by bolts.

On the other hand, the heat-resistant plate 146 may be configured such that a plurality of heat-resistant plates 146 are divided in the longitudinal direction of the material inlet 12 like the heat-resistant mat 144. That is, a plurality of divided heat-resisting plates 146 are provided on the frame 142 to block the opening of the material inlet 12 disposed on both sides of the material S regardless of the size of the material S to be introduced .

The second heat-resistant plate 146b is detachably attached to the first heat-resistance plate 146a so that the second heat-heat-resistant plate 146b is prevented from being deformed due to the long- Only the second heat-resistant plate 146b can be replaced when worn.

Thus, the service life of the auxiliary door unit 140 can be increased.

Hereinafter, the guide unit 160 will be described in more detail with reference to the drawings.

FIG. 4 is a plan view showing a heat emission cutoff device according to an embodiment of the present invention, FIG. 5 is a side view showing a heat emission cutoff device according to an embodiment of the present invention, FIG. 6 is an enlarged .

4 to 6, the guide unit 160 may include a body 162, a lever member 164, and a holder member 172 as an example.

The body 162 is installed at both ends of the frame 142 of the auxiliary door unit 140. As an example, the body 162 may be of an 'L' angle. The lower end of the body 162 may have a height corresponding to the height of the guard door unit 140.

On the other hand, the body 162 serves as a configuration for installing the lever member 164.

One of the lever members 164 is provided at one end of the body 162 and the other of the lever members 164 is provided at the pillar 20 of the heating furnace 10. For example, the lever member 164 may be comprised of a first lever member 166, a second lever member 168, and a third lever member 170.

The first lever member 166 is rotatably installed at one end of the first lever member base 167 provided on the body 162. The other end of the first lever member 166 may be connected to one end of the third lever member 170.

Accordingly, the first lever member 166 can be rotated about one end of the third lever member 170 when the auxiliary door unit 140 is lifted or lowered.

When the lowering of the auxiliary door unit 140 is completed, the first lever member base 167 on which the first lever member 166 is installed can be inserted into one side of the lower end portion of the holder member 172.

Accordingly, when the auxiliary door unit 140 is raised again, the auxiliary door unit 140 can be raised to the upper portion without shaking. That is, when the auxiliary door unit 140 rises, the first lever member base 167 is guided by the holder member 172 while guiding it, so that the body 162 can be raised without shaking, It is possible to prevent the swinging of the swing arm 140.

Further, since the auxiliary door unit 140 is supported by the first to third lever members 166, 168 and 170, the auxiliary door unit 140 can be raised and lowered more stably.

The second lever member 168 is provided at one end with a second lever member base 169 fixed to the column 20 of the heating furnace 10. The other end of the second lever member 168 may be connected to the other end of the third lever member 170.

The second lever member 168 may be fixed to the other end of the second lever member base 169 and the third lever member 170. As described above, since the second lever member 168 is fixedly installed, rotation of the first lever member 166 can be performed more stably when the first lever member 166 rotates.

The third lever member 170 connects the first and second lever members 166, 168. For example, one end is connected to the first lever member 166 and the other end is connected to the second lever member 168. The first lever member 166 may be rotated about one end of the third lever member 170. [ The other end of the third lever member 170 may be connected to be fixed to the second lever member 168.

As described above, since the third lever member 170 is fixedly connected to the second lever member 168, it is possible to more stably support the elevation of the first lever member 166.

As described above, the lifting and lowering of the auxiliary door unit 140 can be more stably performed through the plurality of lever members 164 including the first, second and third lever members 166, 168 and 170. [

The holder member 172 serves to fix the lower end of the body 162 when the lowering of the body 162 is completed. For example, the holder member 172 is fixed to the column 20 of the heating furnace 10.

A taper hole 172a is formed in the holder member 172 and one side of the lower end of the first lever member base 167 is inserted into the taper hole 172a. Since the taper hole 172a is formed in the holder member 172 as described above, one side of the lower end of the first lever member base 167 can be inserted into the holder member 172 more easily.

Since the auxiliary door unit 140 is supported by the plurality of lever members 164, the auxiliary door unit 140 can be raised and lowered more stably. Further, it is possible to prevent the auxiliary door unit 140, which is generated at the beginning of the lifting of the auxiliary door unit 140, from being shaken through the holder member 172, It is. That is, the lifting and lowering operation of the auxiliary door unit 140 can be performed by linear motion.

Hereinafter, the driving unit will be described with reference to the drawings.

7 is an explanatory diagram illustrating a drive unit of a heat emission cutoff device according to an embodiment of the present invention.

Referring to FIG. 7, the driving unit 180 is connected to the row rejection unit 120 to elevate the row rejection unit 120. As an example, the drive unit 180 may include a drive source 182, a chain 184, and a chain sprocket 186.

The driving source 182 is fixed to the heating furnace 10. For example, the driving source 182 may be an air cylinder, and may be fixedly mounted on the driving source mount 14 of the heating furnace 10.

One end of the chain 184 is connected to the driving universe 182, and the other end is connected to the row rejection 120. For example, the other end of the chain 184 is connected to the link 124 of the row reject 120. In this manner, the heat emission cut-off device 100 can be lifted and lowered through the chain 184, one end of which is connected to the drive source 182 and the other end is connected to the row reject 120.

On the other hand, the chain sprocket 186 is installed in the heating furnace 10 to guide the movement path of the chain 184. That is, the chain 184 is wound around the chain sprocket 186 and can be driven in accordance with the rotation of the sprocket 186 of the bobbin chain.

As described above, the auxiliary door unit 140 can be raised and lowered by the separate drive unit 180, so that the entry port 12 of the heating furnace 10 can be more surely closed.

As described above, heat release from the heating furnace 10 can be suppressed through the auxiliary door unit 140.

Since the second heat-resistant plate 146b can be replaced when the second heat-resistant plate 146b is worn, the service life can be increased.

The shaking of the auxiliary door unit 140 during the elevation of the auxiliary door unit 140 through the guide unit 160 can be suppressed and the elevation operation can be performed more stably.

Although the heat emission cut-off device 100 is installed in the material inlet 12 in the above description, the material S may be installed at the outlet of the heating furnace 10 There will be.

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.

10: heating furnace
100: Heat dissipation device
120: Deny row
140: Auxiliary door unit
160: Guide unit
180: drive unit

Claims (10)

A row refuse installed in the heating furnace so as to be able to ascend and descend;
An auxiliary door unit that is raised and lowered in conjunction with the row rejection and suppresses heat release during material inflow and outflow at any one of material outflow inlets of the heating furnace; And
A guide unit for guiding the lifting and lowering of the auxiliary door unit when the auxiliary door unit is moved up and down;
/ RTI >
Wherein the auxiliary door unit prevents heat from being released through the material outlet when the door provided in the heating furnace opens the material outlet.
The apparatus according to claim 1, wherein the auxiliary door unit
A frame fixedly installed on the row refuse and formed with a flow path through which cooling water flows;
A heat resistant mat fixedly installed on the frame; And
A heat-resistant plate installed on the frame so as to be disposed side by side with the heat-resistant mat, at least a part of which is detached and attached;
And a heat dissipation device.
3. The method of claim 2,
Wherein the heat-resistant plate includes a first heat-resistant plate fixedly installed on the frame, and a second heat-resistant plate rotatably installed on the first heat-resistant plate, the second heat-resistant plate being detachably mounted.
The apparatus of claim 1, wherein the guide unit
A body installed at both ends of the auxiliary door unit;
A plurality of lever members mounted on a column in which one of the body and the other is provided in the heating furnace; And
A holder member for fixing a lower end of the body when the body is lowered;
And a heat dissipation device.
5. The apparatus of claim 4, wherein the plurality of lever members
A first lever member having one end rotatably mounted on a base for a first lever member installed on the body;
A second lever member having one end fixed to the base of the second lever member fixedly installed on the pillar; And
A third lever member connecting the first and second lever members;
And a heat dissipation device.
5. The method of claim 4,
Wherein the holder member is fixed to the column, and a taper hole is formed to facilitate the introduction of the base for the first lever member installed on the body.
The method according to claim 1,
And a driving unit connected to the row rejection unit to elevate the hanger unit.
8. The apparatus of claim 7, wherein the drive unit
A driving source fixedly installed in the heating furnace;
A chain having one end connected to the driving source and the other end connected to the row rejection; And
A chain sprocket for guiding a movement path of the chain;
And a heat dissipation device.
The method according to claim 1,
And a suspension member for maintaining the horizontal position is provided in the row rejection device.
A heating furnace body having an inner space;
A door that opens and closes at least one of the material outlet ports of the heating furnace main body; And
The heat radiation cutoff device according to any one of claims 1 to 9, wherein the heat radiation cutoff device is disposed at least at a front end of the door between the inflow path and the discharge path of the material.
.
KR1020160032527A 2016-03-18 2016-03-18 Apparatus for blocking leak of heat and heating furnace having the same KR101758556B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160032527A KR101758556B1 (en) 2016-03-18 2016-03-18 Apparatus for blocking leak of heat and heating furnace having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160032527A KR101758556B1 (en) 2016-03-18 2016-03-18 Apparatus for blocking leak of heat and heating furnace having the same

Publications (1)

Publication Number Publication Date
KR101758556B1 true KR101758556B1 (en) 2017-07-17

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Country Status (1)

Country Link
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