KR101757562B1 - Repairing apparatus for furnace wall - Google Patents

Repairing apparatus for furnace wall Download PDF

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Publication number
KR101757562B1
KR101757562B1 KR1020150184476A KR20150184476A KR101757562B1 KR 101757562 B1 KR101757562 B1 KR 101757562B1 KR 1020150184476 A KR1020150184476 A KR 1020150184476A KR 20150184476 A KR20150184476 A KR 20150184476A KR 101757562 B1 KR101757562 B1 KR 101757562B1
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KR
South Korea
Prior art keywords
frame member
furnace wall
coupled
frame
support bar
Prior art date
Application number
KR1020150184476A
Other languages
Korean (ko)
Other versions
KR20170075821A (en
Inventor
조대현
최종성
김강석
문승일
문호
김영현
김희원
Original Assignee
현대제철 주식회사
주식회사 엠텍이엔지
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 현대제철 주식회사, 주식회사 엠텍이엔지 filed Critical 현대제철 주식회사
Priority to KR1020150184476A priority Critical patent/KR101757562B1/en
Publication of KR20170075821A publication Critical patent/KR20170075821A/en
Application granted granted Critical
Publication of KR101757562B1 publication Critical patent/KR101757562B1/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
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/04—Blast furnaces with special refractories
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/04—Blast furnaces with special refractories
    • C21B7/06—Linings for furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • 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
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • 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
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus

Abstract

An invention relating to a furnace wall repair apparatus is disclosed. The disclosed furnace wall repairing apparatus comprises a frame member accommodated in a blast furnace, a support member coupled to the frame member and supporting the frame member in contact with a charge charged in the blast furnace or the blast furnace, a frame member coupled to the frame member, And a jetting member for jetting the ink.

Description

{REPAIRING APPARATUS FOR FURNACE WALL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a furnace wall repair apparatus, and more particularly, to a furnace wall repair apparatus capable of performing repair of a furnace wall.

Typical steelmaking consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a casting process to solidify the liquid iron, and a rolling process to make iron steel or wire.

The refractory is applied to the furnace wall of the blast furnace producing the charcoal to prevent damage due to the high temperature generated in the blast furnace.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 10-2014-0129895 (published on April 11, 2014, entitled "Tandem for Continuous Casting").

According to an embodiment of the present invention, there is provided a furnace wall maintenance apparatus that can stably enter refractory furnace walls to refract the refractory, and prevent vibration or the like when applying refractory.

The furnace wall repairing apparatus according to the present invention comprises: a frame member accommodated in a furnace; A support member coupled to the frame member and supporting the frame member in contact with the blast furnace or the charge charged in the blast furnace; And a jet member coupled to the frame member, for jetting the refractory to the furnace wall of the blast furnace.

In the present invention, the frame member includes a hydraulic cylinder and is adjustable in length.

In the present invention, the supporting member may include: an upper supporting part having one end coupled to the upper end of the frame member and the other end contacting the furnace wall to support the frame member; And a lower support part having one end coupled to the lower end of the frame member and the other end supporting the frame member in contact with the furnace wall or the charge.

In the present invention, the upper support portion may include an upper support bar having one end rotatably coupled to the upper end of the frame member and the other end contacting the furnace wall along the rotation; And an upper rotation driving part coupled to the frame member and the upper support bar at both ends and rotating the upper support bar according to the expansion and contraction.

In the present invention, the lower support portion may include a lower support bar having one end rotatably coupled to a lower end portion of the frame member and the other end contacting with the furnace wall or the charge according to rotation; And a lower rotation driving part coupled to the frame member and the lower support bar at both ends and rotating the lower support bar according to the expansion and contraction.

In the present invention, the injection member may include a frame engaging portion rotatably coupled to the frame member by a rotation axis; And a jetting part movably coupled to the frame coupling part and spraying the refractory onto the furnace wall.

The injection unit may further include a camera unit coupled to the frame coupling unit to acquire image information of the furnace wall and transmit the acquired image information to the control unit.

The furnace wall repairing apparatus according to the present invention may further include a cooling member coupled to a lower end of the frame member and spraying a cooling fluid to the furnace wall or the charge.

The furnace wall repairing apparatus according to the present invention operates the injection member in a state in which the upper end portion and the lower end portion of the frame member are fixed, respectively, so that the refractory can be stably injected.

In addition, since the injection member is rotatably provided on the frame member and the image information of the furnace wall can be acquired through the camera unit, the injection member can be operated remotely and the refractory can be accurately and uniformly applied to the furnace wall .

In addition, since the frame member is adjustable in height to adjust the height of the injection member and the injection member is rotatably coupled to the frame member, the refractory injection angle, range, and efficiency can be increased.

Further, since the cooling member is provided at the lower end portion of the frame member of the present invention, it is possible to prevent the device from being damaged by the high-temperature charge.

1 is a view showing a state in which a furnace wall maintenance apparatus according to an embodiment of the present invention is installed inside a blast furnace.
2 is a view showing a portion 'A' in FIG.
3 is a view showing a portion 'B' in FIG.
4 is a view showing a portion 'C' in FIG.
5 is a view showing a portion 'D' in FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a furnace wall repairing apparatus according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a view showing a state in which a furnace wall maintenance apparatus according to an embodiment of the present invention is installed inside a blast furnace, and FIG. 2 is a view showing a portion 'A' of FIG.

1 and 2, a furnace wall repair apparatus 1 according to an embodiment of the present invention includes a frame member 100, a support member 200, and a jetting member 300, 11).

The frame member 100 is moved to the inside of the blast furnace 10 in a state where the frame member 100 is connected to the hoist 30 through a connection portion 31 such as a wire or a rope. In this embodiment, the frame member 100 includes a hydraulic cylinder and the like, and is adjustable in length to adjust the height of the injection member 300.

The frame member 100 includes a lower frame portion 110 to which a lower support portion 230 and a cooling member 400 to be described later are coupled, a lower frame portion 110 movably coupled to an upper side of the lower frame portion 110, And an upper frame part 130 which is moved by hydraulic pressure or the like to move the jetting member 300 up and down.

FIG. 3 is a view showing a portion 'B' in FIG. 2, and FIG. 4 is a view showing a portion 'C' in FIG.

1, 3 and 4, the support member 200 is coupled to the frame member 100, and supports the frame member 100 in contact with the charge 20 charged into the blast furnace 10 or the blast furnace 10 So that the refractory can be stably injected in the injection member 300 coupled to the frame member 100. [ In this embodiment, the support member 200 includes an upper support portion 210 and a lower support portion 230.

The upper support portion 210 has one end coupled to the upper end of the frame member 100 and the other end abutting the furnace wall 11 to support the upper end of the frame member 100. In this embodiment, the upper support part 210 includes an upper support bar 211 and an upper rotation drive part 215.

One end of the upper support bar 211 is rotatably coupled to the upper end of the frame member 100, and the other end of the upper support bar 211 abuts against the furnace wall 11. [ The upper support bar 211 is rotatably coupled to the other end of the upper support rod 212 and is connected to the upper support rod 212 And a top contact portion 214 contacting the furnace wall 11 while being rotated relative to the furnace wall 11. [

Both ends of the upper rotation drive unit 215 are coupled to the frame member 100 and the upper support bar 211 and rotate the upper support bar 211 according to the expansion and contraction. In the present embodiment, the upper rotation drive unit 215 is exemplified by a hydraulic cylinder, and the upper end support bar 211 is extended and contracted in a state where both ends thereof are coupled to the frame member 100 and the upper support bar 211, respectively.

One end portion of the lower support portion 230 is coupled to the lower end portion of the frame member 100 and the other end portion thereof contacts the furnace wall 11 or the charge 20 to support the lower end portion of the frame member 100. In the present embodiment, the lower support part 230 includes a lower support bar 231 and a lower rotation drive part 235.

One end of the lower support bar 231 is rotatably coupled to the lower end of the frame member 100 and the other end thereof contacts the furnace wall 11 or the charge 20 as the rotation is performed. The lower support bar 231 is rotatably coupled to the other end of the lower support bar 232 to be in contact with the furnace wall 11 or the charge 20, And a lower contact portion 234 which contacts and rotates according to the shape of the portion.

Both ends of the lower rotation drive part 235 are coupled to the frame member 100 and the lower support bar 231 and rotate the lower support bar 231 in accordance with the expansion and contraction. In the present embodiment, the lower rotation drive portion 235 is exemplified by a hydraulic cylinder, and is expanded and contracted in a state where both end portions thereof are coupled to the frame member 100 and the lower support bar 231, respectively, to move the lower support bar 231.

The injection member 300 is coupled to the frame member 100 and injects the refractory into the furnace wall 11. In this embodiment, the jetting member 300 includes a frame engaging portion 310 and a jetting portion 330.

The frame engaging portion 310 is rotatably coupled to the frame member 100. In this embodiment, the frame coupling part 310 is formed in a substantially cylindrical shape and is coupled to the upper frame part 130 and is raised and lowered in accordance with the movement of the upper frame part 130.

In this embodiment, the frame coupling unit 310 includes a rotation driving unit (not shown) for generating a rotation force under the control of a control unit (not shown), and is rotated with the frame member 100 as a rotation axis.

The injection part 330 is movably coupled to the frame coupling part 310 and injects the refractory material into the furnace wall 11. In the present embodiment, the jetting section 330 includes a jetting frame section 331, a refractory guide section 335, and a jetting nozzle 337.

One end of the injection frame section 331 is rotatably coupled to the frame engagement section 310 and includes a plurality of injection frames 332. Each injection frame 332 is hinged to be rotatable with respect to each other and is connected to the injection frame drive unit 334, which is exemplified by a hydraulic cylinder, so as to be rotatable about a hinge-jointed portion.

The injection frame 331 can move the injection nozzle 337 coupled to the other end to a predetermined position and move the injection nozzle 337 in accordance with the bending of the furnace wall 11, To be uniformly applied.

In this embodiment, the injection member 300 further includes a camera unit 350. [ The camera unit 350 is coupled to the frame coupling unit 310 and acquires image information of the furnace wall 11 and transmits the acquired image information to the control unit. The image information transmitted to the control unit is output by an output unit (not shown) such as a monitor, and the operator grasps the state of the furnace wall 11 and controls the movement of the injection member 300.

5 is a view showing a portion 'D' in FIG. 1 and 5, in this embodiment, the furnace wall remedying apparatus 1 further includes a cooling member 400. The cooling member 400 is coupled to the lower end of the frame member 100 and injects a cooling fluid to the furnace wall 11 or the charge 20 to prevent the device from being damaged by the high temperature of the furnace wall 11 or the refractory do.

The operation principle and effect of the furnace wall repair apparatus 1 according to an embodiment of the present invention will be described as follows.

The furnace wall repair device 1 connected to the hoist 30 through a connecting portion 31 such as a wire enters the inside of the blast furnace 10 through the upper opening of the blast furnace 10.

When the furnace wall repair device 1 reaches the set position, the controller drives the lower rotation drive part 235 to move the lower support rod 232 so that the lower contact part 234 contacts the furnace wall 11 or the charge 20 . When the lower contact portion 234 contacts the furnace wall 11 or the charge 20, the position of the lower end of the frame member 100 is fixed.

The control unit drives the cooling member 400 to spray the cooling fluid to the charge 20 or the like to cool the unit where the lower support part 230 is seated, can do.

When the lower end of the frame member 100 is supported by the lower support part 230, the control part drives the upper support part 210 to support the upper end of the frame member 100. The upper support portion 210 is operated by the upper rotation drive portion 215 so that the upper contact portion 214 located at the other end of the upper support rod 212 is in contact with the furnace wall 11, Thereby preventing the upper end portion of the upper end portion from flowing.

When the upper and lower ends of the frame member 100 are supported, the control unit drives the injection member 300 to inject the refractory material into the furnace wall 11. [ The operator can grasp the condition of the furnace wall 11 through the camera unit 350 and thus the refractory can be injected by moving the injection nozzle 337 according to the state of the furnace wall 11 detected.

The position of the injection nozzle 337 can be controlled by controlling the operation of the injection frame 332 which couples the injection nozzle 337 to the frame engagement portion 310. In the present embodiment, a plurality of jetting frames 332 are provided and are hinged to each other. Since the coupling angle of the hinged portion is adjusted by the jetting frame driving unit 334, Position and injection angle can be adjusted.

In addition to the method of adjusting the injection position of the refractory by driving the injection member 300, the furnace wall maintenance apparatus 1 of this embodiment can vary the length of the frame member 100 and adjust the injection position.

In the present embodiment, the furnace wall maintenance apparatus 1 can elevate the upper frame part 130 and adjust the height of the injection member 300 coupled to the upper frame part 130.

In order to raise and lower the upper frame part 130, the control part separates the upper support part 210 from the furnace wall 11 first. The control unit then lifts the upper frame part 130 with respect to the lower frame part 110 using a hydraulic cylinder or the like and drives the upper supporting part 210 to contact the furnace wall 11 when the up and down movement is completed, 100).

When the lifting and lowering of the upper frame part 130 is completed, the controller drives the jetting member 300 to spray the refractory on the furnace wall 11 to repair the furnace wall 11.

Thus, the furnace wall repairing apparatus 1 according to the present embodiment operates the injection member 300 in a state where the upper end and the lower end of the frame member 100 are fixed, respectively, so that the refractory can be stably injected.

In the present embodiment, the furnace wall maintenance apparatus 1 is configured such that the injection member 300 is rotatably provided to the frame member 100 and is capable of acquiring image information of the furnace wall 11 through the camera unit 350 It is possible to work remotely and precisely and uniformly the refractory on the furnace wall (11).

In the present embodiment, the furnace wall repair apparatus 1 is configured such that the frame member 100 is extendable and retractable to adjust the height of the jetting member 300, and the jetting member 300 is rotatable with respect to the frame member 100 So that the refractory spray angle, range, and efficiency can be increased.

In the present embodiment, the furnace wall repairing apparatus 1 is provided with the cooling member 400 at the lower end of the frame member 100, so that it is possible to prevent the apparatus from being damaged by the high-temperature charge 20 or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of the present invention should be determined by the following claims.

1: furnace wall repair device 10; blast furnace
11: Roof wall 20: Charge
30: hoist 31: connection
100: frame member 110: lower frame part
130: upper frame part 200: supporting member
210: upper support part 211: upper support bar
212: upper support rod 214: upper contact
215: upper rotation driving part 230: lower support part
231: lower support bar 232: lower support bar
234: lower contact portion 235: lower rotation driving portion
300: injection member 310: frame engaging portion
330: jetting part 331: jetting part
332: injection frame 334: injection frame driving part
335: refractory guide portion 337: injection nozzle
350: camera part 400: cooling member

Claims (8)

A frame member accommodated in the blast furnace;
A support member coupled to the frame member and supporting the frame member in contact with the blast furnace or the charge charged in the blast furnace; And
And a spray member coupled to the frame member and spraying refractory material onto the furnace wall of the blast furnace,
Wherein the support member comprises:
An upper support portion having one end coupled to the upper end of the frame member and the other end contacting the furnace wall to support the frame member; And
A lower end supporting part of the frame member, one end of which is coupled to the lower end of the frame member and the other end of which is in contact with the furnace wall or the charge;
And a controller for controlling the furnace wall.
The light emitting device according to claim 1,
Wherein the length of the repairing unit is adjustable, including a hydraulic cylinder.
delete The apparatus according to claim 1,
An upper support bar having one end rotatably coupled to the upper end of the frame member and the other end contacting the furnace wall in accordance with rotation; And
An upper rotation driving part coupled to the frame member and the upper support bar at both ends thereof to rotate the upper support bar according to the expansion and contraction;
And a controller for controlling the furnace wall.
[2] The apparatus of claim 1,
A lower support bar rotatably coupled at one end to the lower end of the frame member and at the other end to contact the furnace wall or the charge with rotation; And
A lower rotation driving part coupled to the frame member and the lower support bar at both ends thereof to rotate the lower support bar according to the expansion and contraction;
And a controller for controlling the furnace wall.
The ink cartridge according to any one of claims 1, 2, 4, and 5,
A frame engaging portion rotatably coupled to the frame member by a rotation axis; And
A jetting part movably coupled to the frame engaging part and injecting refractory onto the furnace wall;
And a controller for controlling the furnace wall.
7. The image forming apparatus according to claim 6,
A camera unit coupled to the frame coupling unit to acquire image information of the furnace wall and transmit the image information to the control unit;
Further comprising a plurality of openings in the wall.
The refrigerator according to any one of claims 1, 2, 4, and 5, further comprising: a cooling member coupled to a lower end of the frame member and injecting cooling fluid to the furnace wall or the charge Wherein the repairing apparatus is constructed such that the repairing apparatus is installed.
KR1020150184476A 2015-12-23 2015-12-23 Repairing apparatus for furnace wall KR101757562B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150184476A KR101757562B1 (en) 2015-12-23 2015-12-23 Repairing apparatus for furnace wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150184476A KR101757562B1 (en) 2015-12-23 2015-12-23 Repairing apparatus for furnace wall

Publications (2)

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KR20170075821A KR20170075821A (en) 2017-07-04
KR101757562B1 true KR101757562B1 (en) 2017-07-13

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005214607A (en) 2004-01-30 2005-08-11 Shinko Kk Method and device for cleaning wall surface inside chimney

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005214607A (en) 2004-01-30 2005-08-11 Shinko Kk Method and device for cleaning wall surface inside chimney

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