JPS636603B2 - - Google Patents
Info
- Publication number
- JPS636603B2 JPS636603B2 JP59250382A JP25038284A JPS636603B2 JP S636603 B2 JPS636603 B2 JP S636603B2 JP 59250382 A JP59250382 A JP 59250382A JP 25038284 A JP25038284 A JP 25038284A JP S636603 B2 JPS636603 B2 JP S636603B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- plate
- seal plate
- receiving bracket
- refractory
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000011823 monolithic refractory Substances 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000008439 repair process Effects 0.000 description 12
- 239000011449 brick Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高炉の鉱石受金物ブラケツト直下部
分の耐火物が損耗または脱落時に施される高炉の
鉱石受金物ブラケツト直下部分の補修装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a repair device for the part directly below the ore receiving bracket of a blast furnace, which is performed when the refractory material directly below the ore receiving bracket of the blast furnace is worn out or falls off. It is.
（従来技術）
高炉の炉体は炉体鉄皮の内側に耐火レンガが構
築された炉壁を有し、その炉口部は一般に第８図
に示すように炉体鉄皮１の内側の炉壁耐火レンガ
２の頂部の上に鉱石受金物ブラケツト３が設けら
れ、このブラケツト３の上に鉱石受金物４が配設
されている。この炉口部は、高炉の稼動年数が経
過するに従つて炉壁上部の炉口部耐火レンガ２の
損耗が進み、終にはこの耐火レンガ２が全面的に
脱落するという状態になり兼ねないという問題が
ある。前記損耗が進んだ状態に至ると鉄皮１の炉
口部の熱負荷が増大して鉄皮の熱変形が発生する
という問題とともに、鉱石受金物ブラケツト３が
炉内の高温雰囲気にさらされているために、この
熱変形が増大し、溶接部等に亀裂が発生し、それ
に伴つて鉱石受金物４が脱落することがある。鉱
石受金物４は高炉の炉口部ひいては高炉本体の寿
命を左右する重要な部位にあるので、前記損耗に
対して、従来、不定形耐火物の吹き付けあるいは
流し込みにより鉱石受金物ブラケツト直下部分の
炉口部耐火レンガ２の補修が行われてきた。(Prior art) The furnace body of a blast furnace has a furnace wall made of refractory bricks inside the furnace body shell, and the furnace mouth is generally located inside the furnace body shell 1 as shown in FIG. An ore support bracket 3 is provided on the top of the wall refractory brick 2, and an ore support bracket 3 is disposed on this bracket 3. As the blast furnace has been in operation for a number of years, the furnace mouth refractory bricks 2 at the upper part of the furnace wall may become worn out, and eventually the refractory bricks 2 may completely fall off. There is a problem. When the wear reaches the advanced state, the thermal load on the furnace mouth of the steel shell 1 increases, causing thermal deformation of the steel shell, and the ore receiving bracket 3 is exposed to the high temperature atmosphere in the furnace. As a result, this thermal deformation increases and cracks occur in the welded parts, etc., and the ore receiving metal fitting 4 may fall off accordingly. Since the ore bracket 4 is located at the mouth of the blast furnace, which is an important part that affects the life of the blast furnace body, conventionally, to prevent the wear and tear, the area directly below the ore bracket is removed by spraying or pouring monolithic refractories. Repairs have been made to the mouth refractory brick 2.
高炉炉壁の補修技術として、特開昭59−159306
号に記載の方法が知られている。前記公報によれ
ば、この炉壁の補修技術は、耐熱金網を炉頂開口
より挿入して炉壁損耗部に垂下させ、この金網を
係止金具にて炉壁に固着した後、金網面に不定形
耐火物を吹き付け、この不定形耐火物が前記金網
によつて支持されるという技術である。 As a repair technology for blast furnace walls, JP-A-59-159306
The method described in No. According to the above-mentioned publication, this furnace wall repair technique involves inserting a heat-resistant wire mesh through the opening at the top of the furnace and hanging it down on the damaged part of the furnace wall, fixing this wire mesh to the furnace wall with a locking fitting, and then attaching it to the surface of the wire mesh. This is a technique in which a monolithic refractory is sprayed and the monolithic refractory is supported by the wire mesh.
（発明が解決しようとする問題点）
鉱石受金物の脱落を防止するための炉口部耐火
レンガを不定形耐火物により補修する前記従来の
技術は、補修部の寿命が短いという欠点があつ
た。(Problems to be Solved by the Invention) The above-mentioned conventional technique of repairing the refractory brick at the mouth of the furnace with a monolithic refractory to prevent the ore receiver from falling off had the disadvantage that the service life of the repaired part was short. .
ところで、前記特開昭59−159306号の開示より
以前に高炉炉壁損耗部の補修に当つて炉内に突出
させた多数のスタツドにより流し込みあるいは吹
き付けした不定形耐火物を支持する技術が知られ
ており、この旧来の技術と上記開示の方法とを比
較すると、前記旧来の方法はいわば点により不定
形耐火物を支持し、前記開示の技術はいわば面に
より不定形耐火物を支持するという手段からし
て、上記両技術は点もしくは面による支持手段の
違いにすぎない。旧来の点支持による補修技術に
よつては、操炉中の炉内温度の変動あるいは休風
前後の温度差等によつて不定形耐火物が崩壊して
脱落し易く、長期間の使用には耐え得ないという
欠点があつた。しかしこれを面支持による補修技
術に改めても格別大きな効果は見られなかつた。 By the way, prior to the disclosure of JP-A No. 59-159306, there was known a technique for supporting cast or sprayed monolithic refractories with a large number of studs protruding into the furnace in order to repair the damaged part of the blast furnace wall. Comparing this conventional technique with the method disclosed above, it is found that the conventional method supports the monolithic refractory by a so-called point, and the technique disclosed above supports the monolithic refractory by a surface, so to speak. Therefore, the two techniques described above differ only in point or surface support means. With conventional point support repair techniques, monolithic refractories tend to collapse and fall off due to fluctuations in the temperature inside the furnace during operation or temperature differences before and after the wind is shut down, making it unsuitable for long-term use. It had the drawback of being unbearable. However, even if this repair technique was changed to surface support, no particularly great effect was seen.
（問題を解決するための手段）
本発明は、高炉の鉱石受金物ブラケツト直下部
分の耐火物が損耗または脱落時に施される高炉の
鉱石受金物ブラケツト直下部分の従来の補修装置
の有する欠点を除去−改善することを目的とする
ものであつて、特許請求の範囲記載の装置を提供
することによつて前記目的を達成することができ
る。(Means for Solving the Problem) The present invention eliminates the drawbacks of conventional repair devices for the part directly below the ore receiving bracket of a blast furnace, which is performed when the refractory material directly below the ore receiving bracket of the blast furnace is worn out or falls off. - this object can be achieved by providing a device according to the claims.
本発明は、炉口部耐火レンガが損耗・脱落し始
めた状況において、鉱石受金物が脱落しないよう
に保護する方法として、炉内に露出している鉱石
受金物ブラケツトの下面を炉内の高温雰囲気から
断熱して保護するために、前記ブラケツトの下面
を不定形耐火物により被覆保護する装置とを提供
するものである。 The present invention is a method for protecting the ore bracket from falling off when the refractory bricks at the furnace mouth begin to wear out or fall off. The present invention provides a device for covering and protecting the lower surface of the bracket with a monolithic refractory material in order to insulate and protect it from the atmosphere.
すなわち、本発明につき図面を参照して説明す
る。 That is, the present invention will be explained with reference to the drawings.
第１図は、高炉炉壁に本発明の装置が配設され
ている位置を示す炉口部の縦断面図、第２図は本
発明装置の縦断面図である。鉱石受金物ブラケツ
ト３直下部分の鉄皮１の水平断面の内周に接して
複数個のシール板７により全周が取巻かれてい
る。個々のシール板７は、前記内周に沿つた長さ
を幅とし、鉱石受金物ブラケツト３の炉に対して
半径方向の寸法と略同一寸法を奥行としており、
縦断面形がカギ形状の上方が開放された外形を有
している。第３図は１個のシール板７の斜視図で
あつて、第２，３図に示すように、シール板７の
表面は耐火物１０により予め被覆されている。シ
ール板７の内部には骨材１５、補強材１６よりな
る枠体がシール板７を補強するために設けられて
いる。補強材１６は鉄皮１の貫通孔１７を貫通す
るタイロツド１１により鉄皮１に引張・固定され
ている。貫通孔１７の軸芯方向に対して鉄皮１の
壁面が傾斜しているため タイロツド１１のナツ
トの締め付けをよくするために、勾配座金１８が
使用される。タイロツド１１が引張されることに
よつて、鉱石受金物ブラケツト３の下面はシール
板７の上縁面と密着されており、またシール板７
の鉄皮側の縁面は鉄皮１の内面に密着している。
さらにシール板７の下面と開口周辺の鉄皮１とは
ブラケツト１２にそれぞれ溶接されている。第３
図において、突出した部品２３Ｒ，２４Ｒ，２５
Ｒ，２６Ｒは後述する補修作業用ワイヤーロープ
２３，２４，２５，２６が係止される金物であ
る。 FIG. 1 is a longitudinal cross-sectional view of the furnace mouth showing the position where the apparatus of the present invention is disposed on the blast furnace wall, and FIG. 2 is a longitudinal cross-sectional view of the apparatus of the present invention. The whole circumference is surrounded by a plurality of seal plates 7 in contact with the inner periphery of the horizontal section of the iron skin 1 directly below the ore receiving bracket 3. The width of each seal plate 7 is the length along the inner circumference, and the depth is approximately the same as the radial dimension of the ore receiving bracket 3 with respect to the furnace.
The longitudinal section has a key-shaped outer shape with an open upper part. FIG. 3 is a perspective view of one seal plate 7, and as shown in FIGS. 2 and 3, the surface of the seal plate 7 is coated with a refractory 10 in advance. A frame body made of aggregate 15 and reinforcing material 16 is provided inside the seal plate 7 to reinforce the seal plate 7. The reinforcing material 16 is tensioned and fixed to the steel shell 1 by a tie rod 11 passing through a through hole 17 in the steel shell 1. Since the wall surface of the steel shell 1 is inclined with respect to the axial direction of the through hole 17, a sloped washer 18 is used to improve the tightening of the nut of the tie rod 11. By tensioning the tie rod 11, the lower surface of the ore receiving bracket 3 is brought into close contact with the upper edge surface of the seal plate 7.
The edge surface on the iron skin side is in close contact with the inner surface of the iron skin 1.
Furthermore, the lower surface of the seal plate 7 and the iron skin 1 around the opening are welded to the bracket 12, respectively. Third
In the figure, protruding parts 23R, 24R, 25
R and 26R are metal fittings to which wire ropes 23, 24, 25, and 26 for repair work, which will be described later, are locked.
またシール板７内の不定形耐火物９を冷却する
ための冷却板８が前記不定形耐火物９に囲われて
シール板７内に挿入されている。冷却板７は水冷
式密閉循環２パス型であつて、送水（排水）口１
４より冷却水は送水（排水）される。鉄皮開口１
ａのまわりに支持座１３が配設されていて、冷却
板８の炉外端部のフランジ１９が支持座１３に支
持固定され、冷却板８の本体部は鉄皮開口１ａを
経てシール板７の内面と鉱石受金物ブラケツト３
の下面とによつて囲われた空間に収納されてい
る。第４図中に破線で示すように本体部には周囲
に圧入される不定形耐火物９との結合をよくする
ために下面アンカー２０、上面アンカー２１、側
面アンカー２２が設けられている。第４図中に鉄
皮開口１ａはマユ形状に図示されているが、この
形状に限定されるものではない。 Further, a cooling plate 8 for cooling the monolithic refractory 9 within the seal plate 7 is inserted into the seal plate 7 while being surrounded by the monolithic refractory 9 . The cooling plate 7 is a water-cooled closed circulation two-pass type, and has a water supply (drainage) port 1.
4, the cooling water is fed (drained). Iron skin opening 1
A support seat 13 is disposed around a, a flange 19 at the outer end of the furnace is supported and fixed to the support seat 13, and the main body of the cooling plate 8 passes through the steel shell opening 1a to the seal plate 7. inner surface and ore support bracket 3
It is stored in a space surrounded by the bottom surface of the As shown by broken lines in FIG. 4, the main body is provided with a lower anchor 20, an upper anchor 21, and a side anchor 22 in order to improve the connection with the monolithic refractory 9 that is press-fitted around the main body. Although the iron skin opening 1a is shown in FIG. 4 in the shape of a cocoon, it is not limited to this shape.
第５図は第１図Ｂ−Ｂ水平断面図である。円形
の鉄皮１の内面に接するシール板７は７ａ〜７ｎ
で示すように12個よりなり、個々のシール板７に
は２または３個の冷却板８がそれぞれ配設されて
いる。高炉のリングスチフナーの互に隣り合つた
縦リブ１ｂ間に鉄皮開口１ａが設けられるためシ
ール板７上の冷却板８は鉄皮円周上に等間隔に配
設されてはおらず、従つてシール板の幅寸法は一
定ではない。第１図に示すようにアーマプレート
５はその上部が炉口部に設けられたハツカーに懸
架されており、このプレート５を炉内へ挿入する
ために設けられているアーマプレート取替口６を
利用してシール板７を炉内に挿入することができ
る。シール板７の炉内での装着は７ａから順次行
われ、最後に７ｎが装着されるので、シール板７
ｎの端面は他のシール板の端面と異なり逆角度と
なつており、一方これに合せて、シール板７ｎの
端面に接するシール板７ａ，７ｌの端面はそれぞ
れ炉内側に拡大するような角度となつており、こ
の端面間にシール板７ｎを引き込んで定着させる
ことが可能である。 FIG. 5 is a horizontal sectional view taken along the line BB in FIG. 1. The seal plates 7 in contact with the inner surface of the circular iron skin 1 are 7a to 7n.
As shown, there are 12 cooling plates 8, and each sealing plate 7 is provided with two or three cooling plates 8. Since the shell openings 1a are provided between the adjacent vertical ribs 1b of the ring stiffener of the blast furnace, the cooling plates 8 on the seal plate 7 are not arranged at equal intervals on the circumference of the shell. The width dimension of the seal plate is not constant. As shown in FIG. 1, the upper part of the armor plate 5 is suspended from a hacker provided at the furnace mouth, and an armor plate replacement port 6 is provided for inserting the plate 5 into the furnace. The sealing plate 7 can be inserted into the furnace using this. Seal plates 7 are installed in the furnace sequentially from 7a, and 7n is installed last, so seal plates 7
Unlike the end faces of the other seal plates, the end faces of the seal plates 7a and 7l, which are in contact with the end faces of the seal plate 7n, have angles that extend toward the inside of the furnace. The seal plate 7n can be drawn in and fixed between these end faces.
次に、本発明の装置を所定の位置に配設する手
順を説明する。 Next, a procedure for arranging the device of the present invention at a predetermined position will be explained.
まず、操業中の高炉について休風または減風を
行つた後、鉱石受金物ブラケツト３直下の鉄皮１
に鉄皮開口１ａをとびとびに設ける。開口数は鉄
皮１の強度との関係から決められるのは当然であ
るが強度的許容限度内で多い方が好ましい。 First, after suspending or reducing the wind in the operating blast furnace,
Iron shell openings 1a are provided at intervals. Naturally, the numerical aperture is determined based on the relationship with the strength of the steel shell 1, but it is preferable that the numerical aperture be as large as possible within the allowable strength limit.
次に、シール板７を炉内に取込む手順を第６図
を参照して説明する。 Next, the procedure for taking the seal plate 7 into the furnace will be explained with reference to FIG.
第６図ａに示すように、アーマプレート取替口
６を経て、シール板７をその長手方向を縦にして
ワイヤーロープ２３により支持し吊り下げて炉内
を降下させ鉱石受金物ブラケツト３の下方に案内
する。 As shown in FIG. 6a, through the armor plate replacement port 6, the seal plate 7 is supported by a wire rope 23 with its longitudinal direction vertical, and is suspended and lowered inside the furnace to the bottom of the ore receiving bracket 3. I will guide you to.
次いで第６図ｂに示すように、ワイヤーロープ
２４，２５を緊張させワイヤーロープ係止金具２
４Ｒ，２５Ｒが最上位置になるようにシール板７
の姿勢を変え、ワイヤーロープ２６の自由端を鉄
皮開口１ａより炉外に取出す。 Next, as shown in FIG.
Seal plate 7 so that 4R and 25R are at the top position.
The free end of the wire rope 26 is taken out of the furnace through the shell opening 1a.
第６図ｃに示すように、ワイヤーロープ２４，
２５，２６の引張具合を調整してシール板７を鉱
石受金物ブラケツトの直下に位置させる。なおワ
イヤーロープ２３，２４はアーマプレート取替口
６；ワイヤーロープ２５は隣接の取替口６ａを通
過するよう図示してあるが、シール板７の幅寸法
によつてはこれら３つのワイヤーロープを一緒に
前記取替口６を通過させてもよい。 As shown in FIG. 6c, the wire rope 24,
The tension of 25 and 26 is adjusted to position the seal plate 7 directly below the ore receiving bracket. Note that the wire ropes 23 and 24 are shown passing through the armor plate replacement port 6; the wire rope 25 is shown passing through the adjacent replacement port 6a; however, depending on the width dimension of the seal plate 7, these three wire ropes may be They may also be passed through the replacement port 6 together.
前記のシール板７の姿勢において、第２，４図
に示すシール板７から伸びるタイロツド１１の端
を鉄皮１の貫通孔１７を通し勾配座金１８とナツ
トとにより引張して鉄皮１に固定し、シール板７
の鉄皮寄りの下端はブラケツト１２の介添えを得
て鉄皮開口１ａの下端に溶接・固定する。 In the above-mentioned posture of the seal plate 7, the end of the tie rod 11 extending from the seal plate 7 shown in FIGS. 2 and 4 is fixed to the steel shell 1 by pulling it through the through hole 17 of the steel shell 1 with a slope washer 18 and a nut. and seal plate 7
The lower end of the steel shell is welded and fixed to the lower end of the steel shell opening 1a with the help of a bracket 12.
上記シール板７の固定が終ると、鉄皮開口１ａ
の周囲に支持座１３を設け、冷却板８の端部フラ
ンジ１９を支持座１３に固定・支持することによ
つて冷却板８の本体部をシール板７内に納める。 After fixing the seal plate 7, the iron skin opening 1a
A support seat 13 is provided around the cooling plate 8, and the end flange 19 of the cooling plate 8 is fixed and supported by the support seat 13, so that the main body of the cooling plate 8 is housed within the seal plate 7.
最後に、鉱石受金物ブラケツト３、シール板
７、冷却板８および支持座１３によつて構成され
る密閉された隙間に、支持座１３の側壁上部に設
けた開口から不定形耐火物９を流し込む。この耐
火物９が硬化するまではタイロツド１１とブラケ
ツト１２とにより、シール板７、シール板外面の
耐火物１０およびシール板内の不定形耐火物９の
重量が支持される。前記不定形耐火物９が硬化し
た後操業に入ると、シール板外面の耐火物１０あ
るいはシール板７は炉内原料との摩擦により摩耗
してしまうので、そのときは、冷却板８の本体部
周囲のアンカー２０，２１，２２によつて強固に
保持された不定形耐火物９は冷却板８と支持座１
３を介して鉄皮１に支持される。しかしシール板
７内の冷却板８が挿入されない部分では不定形耐
火物９を前記のように保持するものがないため当
該部の不定形耐火物９は脱落する恐れがある。こ
のようなときには第７図に示すように、冷却板８
が挿入されない部分の両隣の骨材１５に端部がそ
れぞれ支えられるように鋼管２８を渡し、この鋼
管２８にアンカー２７を固定し、アンカー２７に
不定形耐火物９を保持させる。 Finally, the monolithic refractory 9 is poured into the sealed gap formed by the ore receiving bracket 3, the seal plate 7, the cooling plate 8, and the support seat 13 through an opening provided in the upper part of the side wall of the support seat 13. . Until the refractory 9 hardens, the tie rods 11 and brackets 12 support the weight of the seal plate 7, the refractory 10 on the outer surface of the seal plate, and the monolithic refractory 9 inside the seal plate. When operation starts after the monolithic refractory 9 has hardened, the refractory 10 on the outer surface of the seal plate or the seal plate 7 will wear out due to friction with the raw materials in the furnace, so in that case, the main body of the cooling plate 8 The monolithic refractory 9, which is firmly held by the surrounding anchors 20, 21, 22, is connected to the cooling plate 8 and the support seat 1.
It is supported by the iron skin 1 via 3. However, in the portion of the seal plate 7 where the cooling plate 8 is not inserted, there is nothing to hold the monolithic refractory 9 as described above, so there is a risk that the monolithic refractory 9 in that portion may fall off. In such a case, as shown in FIG.
The steel pipe 28 is passed so that its ends are supported by the aggregates 15 on both sides of the part where the steel pipe 28 is not inserted, and the anchor 27 is fixed to the steel pipe 28, and the monolithic refractory 9 is held by the anchor 27.
以上の諸処置によつて不定形耐火物９は脱落す
ることはなく、長期間に亘つて鉱石受金物ブラケ
ツト３の下面を保護し、鉱石受金物４を脱落から
護り、引いては高炉の寿命を延伸することができ
る。 By taking the above measures, the monolithic refractory 9 will not fall off, will protect the lower surface of the ore receiving bracket 3 for a long period of time, will protect the ore receiving metal 4 from falling off, and will extend the life of the blast furnace. can be stretched.
実施例
不定形耐火物はAl2O348％、SiO247％を主成分
とし、水分を12.5％加えて流し込んだ。なお、
SUSワイヤーを重量で３％添加して付着強度の
向上を図つた。Example A monolithic refractory whose main components were 48% Al 2 O 3 and 47% SiO 2 was poured with 12.5% water added. In addition,
We added 3% SUS wire by weight to improve the adhesive strength.
上記により補修した装置を約700℃の炉内温度
にさらしたところ、鉱石受金物ブラケツトの温度
は約70℃という低温に断熱され、熱変形は全くな
く、鉱石受金物の脱落事故発生の心配は無くなつ
た。 When the equipment repaired as described above was exposed to a furnace temperature of approximately 700℃, the temperature of the ore bracket was insulated to a low temperature of approximately 70℃, there was no thermal deformation at all, and there was no fear of the ore bracket falling off. It's gone.
また、第６図に示した諸ワイヤーロープのうち
ワイヤーロープ２６は炉外に回収することができ
たが他のワイヤーロープ２３，２４，２５は回収
することができないため用済みの上は炉内へ切り
落して高炉の操業再開に伴つて溶失させた。第３
図に示したワイヤーロープ係止金具２３Ｒ，２４
Ｒ，２５Ｒも炉内雰囲気による自然溶失にまかせ
た。なお、係止金具２３Ｒ，２４Ｒ，２５Ｒを大
型とし吊りフツクを使用することにより、ワイヤ
ーロープの張力を解除してその係合を外すことに
より、ワイヤーロープを回収することもできる。 Also, among the wire ropes shown in Fig. 6, the wire rope 26 could be recovered outside the furnace, but the other wire ropes 23, 24, and 25 could not be recovered, so the used wire ropes were left inside the furnace. It was cut off and melted away when the blast furnace restarted operations. Third
Wire rope locking fittings 23R, 24 shown in the figure
R and 25R were also allowed to dissolve naturally in the furnace atmosphere. In addition, by making the locking metal fittings 23R, 24R, and 25R large and using hanging hooks, the wire rope can be recovered by releasing the tension of the wire rope and disengaging the wire rope.
従来の不定形耐火物吹付けによる補修は６ケ月
毎に実施しなければならない程に短寿命であつた
が、この実施例による補修部の寿命は少なくとも
３年以上であることが確認されている。 Conventional repairs by spraying monolithic refractories had a short lifespan that had to be carried out every six months, but it has been confirmed that the lifespan of the repaired part using this example is at least three years. .
（効果）
上述のように、高炉において鉱石受金物ブラケ
ツト直下部分の炉壁耐火レンガが損耗して前記ブ
ラケツトが炉内雰囲気に直接さらされるに至つた
ときに本発明の装置を適用して補修をすると、鉱
石受金物ブラケツトの損傷の進行がとまるかある
いは大きく減速されて、鉱石受金物の脱落の心配
がなくなり高炉の寿命を延伸することができ、ま
た従来のような年に２回の鉱石受金物ブラケツト
の不定形耐火物の吹付け補修工事を減少させるこ
とができる。(Effects) As described above, when the refractory bricks of the furnace wall directly below the ore receiving bracket in a blast furnace are worn out and the bracket is directly exposed to the atmosphere in the furnace, the apparatus of the present invention can be applied to repair it. As a result, the progress of damage to the ore receiver bracket will be stopped or significantly slowed down, eliminating the fear of the ore receiver falling off and extending the life of the blast furnace. It is possible to reduce the need for spraying repair work for monolithic refractories on hardware brackets.
第１図は本発明装置が配設されている位置を示
す炉口部の縦断面図、第２図は本発明の装置の縦
断側面図、第３図はシール板の斜視図、第４図は
第２図Ａ−Ａ断面図、第５図は第１図Ｂ−Ｂ断面
図、第６図はシール板取付け手順説明図、第７図
は不定形耐火物支持構造図、第８図は従来の高炉
炉口部の縦断面図である。
１……鉄皮、１ａ……鉄骨開口、１ｂ……リン
グスチフナーの縦リブ、２……耐火レンガ、３…
…鉱石受金物ブラケツト、４……鉱石受金物、５
……ムーバブルアーマプレート、６……アーマプ
レート取替口、７……シール板、８……冷却板、
９……不定形耐火物、１０……耐火物、１１……
タイロツド、１２……ブラケツト、１３……支持
座、１４……送水（排水）口、１５……骨材、１
６……補強材、１７……貫通孔、１８……勾配座
金、１９……フランジ、２０，２１，２２……ア
ンカー、２３，２４，２５，２６……ワイヤーロ
ープ、２３Ｒ，２４Ｒ，２５Ｒ，２６Ｒ……ワイ
ヤーロープ係止金物、２７……アンカー、２８…
…鋼管。
Fig. 1 is a vertical cross-sectional view of the furnace mouth showing the position where the device of the present invention is installed, Fig. 2 is a longitudinal cross-sectional side view of the device of the present invention, Fig. 3 is a perspective view of the seal plate, and Fig. 4 is a cross-sectional view taken along the line A-A in Figure 2, Figure 5 is a cross-sectional view taken along line B-B in Figure 1, Figure 6 is an explanatory diagram of the seal plate installation procedure, Figure 7 is a diagram of the monolithic refractory support structure, and Figure 8 is a diagram showing the support structure for monolithic refractories. FIG. 2 is a vertical cross-sectional view of a conventional blast furnace mouth. 1... Steel shell, 1a... Steel frame opening, 1b... Vertical rib of ring stiffener, 2... Firebrick, 3...
...Ore receiver bracket, 4...Ore receiver, 5
...Movable armor plate, 6...Armor plate replacement port, 7...Seal plate, 8...Cooling plate,
9... Monolithic refractory, 10... Refractory, 11...
Tie rod, 12... Bracket, 13... Support seat, 14... Water supply (drainage) port, 15... Aggregate, 1
6...Reinforcement material, 17...Through hole, 18...Gradient washer, 19...Flange, 20, 21, 22...Anchor, 23, 24, 25, 26...Wire rope, 23R, 24R, 25R, 26R...Wire rope locking hardware, 27...Anchor, 28...
...Steel pipe.
Claims (1)
鉱石受金物ブラケツトを炉内高温雰囲気から断熱
するシール板であつて、前記鉱石受金物ブラケツ
ト直下部分の鉄皮の水平断面の内周に接してかつ
全周にわたつて複数個配設されており、個々のシ
ール板の前記内周に沿つた長さを幅とし、鉱石受
金物ブラケツトの炉に対し半径方向の寸法と略同
一寸法を奥行とし、縦断面形がカギ形状の上方が
解放された外形を有し、かつ外周面を耐火物によ
り被覆されたシール板； 前記シール板と鉱石受金物ブラケツトとの空間
内に鉄皮開口より挿入された水冷式密閉循環型冷
却板であつて、本体部には周囲に圧入される不定
形耐火物との結合をよくするためにアンカーを有
し、端部には鉄皮に設けられた支持座に固定され
るようになつているフランジを有している冷却
板；および 前記冷却板の外周面と、前記シール板の内面お
よび鉱石受金物ブラケツトの下面とで構成される
隙間に充填された不定形耐火物； とからなることを特徴とする高炉の鉱石受金物ブ
ラケツト直下部分の補修装置。[Scope of Claims] 1. A sealing plate that insulates an ore receiving bracket provided over the inner periphery of the furnace at the mouth of a blast furnace from the high-temperature atmosphere inside the furnace, the sealing plate comprising an iron shell directly below the ore receiving bracket. A plurality of seal plates are arranged in contact with the inner periphery of the horizontal cross section and all around the circumference, and the width is the length along the inner periphery of each individual seal plate, and the width is the length along the inner periphery of the individual seal plate, and the width is the width of the seal plate. A seal plate whose depth is approximately the same as the dimensions, whose vertical cross-section has a key-shaped outer shape with an open upper part, and whose outer peripheral surface is covered with a refractory material; a space between the seal plate and the ore receiving bracket. It is a water-cooled closed circulation type cooling plate that is inserted through an opening in the steel shell, and the main body has an anchor to improve the connection with the monolithic refractory that is press-fitted around it, and the end has an anchor. a cooling plate having a flange adapted to be fixed to a support seat provided on a steel shell; and comprising an outer circumferential surface of the cooling plate, an inner surface of the sealing plate, and a lower surface of the ore receiving bracket. a monolithic refractory filled in the gap between the two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25038284A JPS61130409A (en) | 1984-11-29 | 1984-11-29 | Method and device for repairing part directly under ore receiving hardware bracket of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25038284A JPS61130409A (en) | 1984-11-29 | 1984-11-29 | Method and device for repairing part directly under ore receiving hardware bracket of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130409A JPS61130409A (en) | 1986-06-18 |
| JPS636603B2 true JPS636603B2 (en) | 1988-02-10 |
Family
ID=17207084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25038284A Granted JPS61130409A (en) | 1984-11-29 | 1984-11-29 | Method and device for repairing part directly under ore receiving hardware bracket of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130409A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058773A (en) * | 2017-05-22 | 2017-08-18 | 攀钢集团钒业有限公司 | Vananum smelting furnace and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834110A (en) * | 1981-08-24 | 1983-02-28 | Sumitomo Metal Ind Ltd | Repairing method for blast furnace wall |
-
1984
- 1984-11-29 JP JP25038284A patent/JPS61130409A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834110A (en) * | 1981-08-24 | 1983-02-28 | Sumitomo Metal Ind Ltd | Repairing method for blast furnace wall |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130409A (en) | 1986-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU1034617A3 (en) | Crown of electrothermal reduction furnace | |
| US4381856A (en) | Method of repairing blast furnace wall lining | |
| JPS636603B2 (en) | ||
| US4508504A (en) | Blast heating apparatus for blast furnaces | |
| KR19990045443A (en) | How to install linings in the furnace | |
| US3122813A (en) | Flexible form for repairing the oxygen lance holes in open hearth furnace roofs | |
| US4892046A (en) | Furnace roof and method of constructing the same | |
| KR101998744B1 (en) | Blast furnace apparatus and method for reinforcing the same | |
| JP3034179B2 (en) | Stove cooler for blast furnace | |
| US3723631A (en) | Skull melting furnace with removable bottom and process for furnace operation | |
| JPS6154510B2 (en) | ||
| JP3613815B2 (en) | Repair method using staves for repairing blast furnace wall | |
| JP3045461B2 (en) | Repair method of damaged part of blast furnace wall | |
| JP3613816B2 (en) | Blast furnace wall stave repair method | |
| JPH0329842B2 (en) | ||
| JPS6314319Y2 (en) | ||
| JPS58185701A (en) | Method for repairing lining in blast furnace | |
| KR960000330B1 (en) | Castable refractory meterial operating structure and method thereof for ladle tap hole | |
| KR840001330B1 (en) | Truncated triangular insulator | |
| SU1267147A1 (en) | Heating furnace | |
| US2791191A (en) | Covers for top-charged furnaces | |
| JPS6223798Y2 (en) | ||
| JP5261713B2 (en) | Hot metal construction method | |
| JPH086022Y2 (en) | Converter Furnace Mouth brick fallout prevention structure | |
| JPH0675746B2 (en) | Water-cooled ceiling lid for ladle |