JPS6353475B2 - - Google Patents
Info
- Publication number
- JPS6353475B2 JPS6353475B2 JP18241780A JP18241780A JPS6353475B2 JP S6353475 B2 JPS6353475 B2 JP S6353475B2 JP 18241780 A JP18241780 A JP 18241780A JP 18241780 A JP18241780 A JP 18241780A JP S6353475 B2 JPS6353475 B2 JP S6353475B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- furnace wall
- repair agent
- mortar
- cooling plate
- 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
- 230000008439 repair process Effects 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 description 35
- 239000003795 chemical substances by application Substances 0.000 description 33
- 239000004570 mortar (masonry) Substances 0.000 description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 9
- 210000002445 nipple Anatomy 0.000 description 9
- 239000011449 brick Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】
本発明は高炉の補修方法、即ち高炉操業に伴い
炉壁れんがが侵食されてその厚みが減少した際
に、流体状耐火物を炉内に圧入して炉壁の補修を
行う方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for repairing a blast furnace, that is, a method for repairing the furnace wall by pressurizing a fluid refractory into the furnace when the furnace wall bricks are eroded and their thickness is reduced due to blast furnace operation. Concerning how to do.
高炉の炉壁れんがが高温高圧の炉内ガス又は溶
融装入物に曝されて侵食され、炉壁の厚みが薄く
なつた場合は、高炉鉄皮の温度上昇又は高炉炉壁
に埋込んである熱電対の検出温度の上昇によりこ
れを検知した後、これら温度が上昇した部分の炉
壁をボーリングして、炉壁外面から内面に貫通す
る孔を開設し、この貫通孔を利用してモルタル等
の流体状耐火物を炉内に圧入し、内面の侵食部分
をモルタル等で埋めて補修していた。而して高炉
は通常高圧操業を行つており、このような高炉炉
内にモルタルを操業中に圧入するのは容易ではな
く、またボーリングにより貫通孔から高炉の炉内
ガス又は炉内装入物が噴出することもあつて、炉
壁補修の際には炉内圧を下げる必要があり、この
ため高炉を休風せざるを得ず、操業管理上種々の
不都合を招来していた。 If the wall bricks of a blast furnace are exposed to high-temperature, high-pressure furnace gas or molten charge and are eroded and the thickness of the furnace wall becomes thin, this may be due to an increase in the temperature of the blast furnace shell or embedded in the blast furnace wall. After this is detected by the increase in temperature detected by the thermocouple, the furnace wall in the area where the temperature has increased is bored and a hole is created that penetrates from the outside of the furnace wall to the inside. A fluid refractory was injected into the furnace, and the eroded parts of the inner surface were filled in with mortar and repaired. Blast furnaces are usually operated under high pressure, and it is not easy to press mortar into such blast furnaces during operation, and it is not easy to press mortar into such blast furnaces during operation. Because blasts sometimes erupt, it is necessary to lower the pressure inside the furnace when repairing the furnace walls, which necessitates the blast furnace being shut down, causing various inconveniences in terms of operational management.
本発明は斯かる事情に鑑みてなされたものであ
つて、高炉炉壁の補修に際して、高炉を休風して
炉内圧を低下させることなく、高圧の炉内にモル
タル等の流体状耐火物を圧入して炉壁の補修を行
うことができる高炉炉壁の補修方法を提供するこ
とを目的とする。 The present invention has been made in view of the above circumstances, and it is possible to inject a fluid refractory such as mortar into a high-pressure furnace when repairing a blast furnace wall without reducing the pressure inside the furnace by shutting down the blast furnace. An object of the present invention is to provide a method for repairing a blast furnace wall by press-fitting the furnace wall.
本発明に係る高炉炉壁の補修方法は、高炉鉄皮
を貫通して炉壁に埋設され、炉壁内面の後退によ
り炉壁内外を連通させ得る構成とした補修剤導入
具を予め設けておき、炉外において該補修剤導入
具に流量調節弁及び炉内側から炉外側への通流を
阻止する逆止弁とを連結し、必要に応じて炉外よ
り、これらの弁及び前記補修剤導入具を介して、
炉壁補修剤を炉内へ圧入することを特徴とする。 In the method for repairing a blast furnace wall according to the present invention, a repair agent introduction device is provided in advance, which is embedded in the furnace wall through the blast furnace shell, and configured to allow communication between the inside and outside of the furnace wall by retracting the inner surface of the furnace wall. , A flow rate control valve and a check valve that prevents flow from the inside of the furnace to the outside of the furnace are connected to the repair agent introducing device outside the furnace, and these valves and the repair agent are introduced from outside the furnace as necessary. Through the tools,
It is characterized by press-fitting the furnace wall repair agent into the furnace.
以下本発明を図面に基いて具体的に説明する。
第１図は本発明方法の実施状態を示す模式図であ
る。１は炉体の周方向及び高さ方向の複数箇所に
て炉壁５に取付けられた冷却盤であつて、冷却盤
１はその水平断面図を第２図に示すように補修剤
通流路３を内設してあり、冷却盤としての機能の
外に、モルタルを炉内に圧入するための補修剤導
入具としての機能をもたせたものである。補修剤
導入具としても機能する冷却盤１は例えば銅製で
あつて、全体として平面視で台形の薄板状をなし
ており、その先端即ち高炉に取付けられた際に炉
壁内に位置する部分は若干狭幅、薄肉であり、且
つ幅方向及び厚み方向に円弧をなすように形成さ
れている。また後端部には高炉鉄皮への取付用の
フランジ４が形成されている。そして冷却盤１の
厚み方向略中央には先端側にて湾曲するＵ字形の
冷却水通流路２が内設されており、後端面の幅方
向両端近傍にて開口している。この開口２ａ，２
ｂにはニツプルバルブ（図示せず）が螺合嵌着さ
れ、ニツプルバルブは図示しない冷却水供給源に
接続されて開口２ａから冷却盤１内に供給された
冷却水は、冷却水通流路２を通流して開口２ｂか
ら排出され冷却水供給源へ返戻される。而して冷
却盤１には断面円形の補修剤通流路３を冷却盤１
の後端面略中央の開口３ａからその厚み方向及び
幅方向中央を先端側に向けて延在せしめてあり、
補修剤通流路３は冷却水通流路２の先端側湾曲部
の少し手前において上下に開口３ｂさせてある。
この補修剤通流路３は炉壁れんがが侵食され、炉
壁５内面が開口３ｂ位置近傍にまで後退してきた
ときは、開口３ａから炉壁の補修剤、例えばモル
タルを補修剤通流路３内に圧入し、開口３ｂから
炉内に供給して炉壁内面の侵食部分を補修すべく
使用される。 The present invention will be specifically explained below based on the drawings.
FIG. 1 is a schematic diagram showing the implementation state of the method of the present invention. Reference numeral 1 denotes a cooling plate attached to the furnace wall 5 at multiple locations in the circumferential direction and height direction of the furnace body, and the cooling plate 1 has repair agent flow paths as shown in FIG. 3 is installed inside the furnace, and in addition to its function as a cooling plate, it also functions as a repair agent introduction tool for press-fitting mortar into the furnace. The cooling plate 1, which also functions as a repair agent introduction tool, is made of copper, for example, and has a trapezoidal thin plate shape as a whole when viewed from above, and its tip, that is, the part located inside the furnace wall when installed in the blast furnace, is made of copper. It is slightly narrow and thin, and is formed into an arc in the width direction and thickness direction. Further, a flange 4 for attachment to the blast furnace shell is formed at the rear end. A U-shaped cooling water passage 2 is provided in the substantially center of the cooling plate 1 in the thickness direction, and is curved at the tip side, and opens near both ends in the width direction of the rear end surface. This opening 2a, 2
A nipple valve (not shown) is screwed into b, and the nipple valve is connected to a cooling water supply source (not shown), and the cooling water supplied into the cooling board 1 from the opening 2a flows through the cooling water passage 2. The water flows through the water, is discharged from the opening 2b, and is returned to the cooling water supply source. The cooling plate 1 is provided with a repair agent passage 3 having a circular cross section.
The center of the thickness direction and the width direction extends from the opening 3a approximately in the center of the rear end surface toward the distal end side,
The repair agent flow path 3 has an opening 3b at the top and bottom slightly in front of the curved portion on the tip side of the cooling water flow path 2.
When the furnace wall brick is eroded and the inner surface of the furnace wall 5 has retreated to the vicinity of the opening 3b, the repair agent passage 3 is used to supply the furnace wall repair agent, such as mortar, from the opening 3a to the repair agent passage 3. It is press-fitted into the furnace and supplied into the furnace through the opening 3b, and is used to repair the eroded portion of the inner surface of the furnace wall.
上述の如き構成の冷却盤１は以下の如くして炉
壁５に取付けられる。即ち冷却盤１より稍々大き
目の冷却盤挿入口６ａを開設した鉄皮６の外面に
はハウジング７が溶着されている。ハウジング７
は冷却盤挿入口６ａと同程度の内法寸法を有する
角筒部７ａの一端面にボルト止用のフランジ部７
ｂを溶着してなるものであつて、角筒部７ａの他
端面を冷却盤挿入口６ａと整合させて鉄皮６に溶
着してある。冷却盤１はハウジング７から冷却盤
挿入口６ａを経て炉壁５内に挿入され炉壁５に埋
込まれており、フランジ４の先端側端面はフラン
ジ部７ｂに衝き当てられ、背後からパツキン８を
当てがつたあとフランジ部７ｂと同様の押付板９
をパツキン８の背後に位置せしめ、押付板９とフ
ランジ部７ｂとの間に跨らせたボルト１０ａ及び
これに螺合するナツト１０ｂにて両者を緊締して
ある。なおパツキン８は冷却盤１と鉄皮６との隙
間をシールし、炉壁れんがの侵食により壁面が後
退してきた際に、炉内ガスが外部へ噴出するのを
防止する。 The cooling plate 1 configured as described above is attached to the furnace wall 5 in the following manner. That is, a housing 7 is welded to the outer surface of the iron shell 6, which has a cooling plate insertion opening 6a slightly larger than the cooling plate 1. Housing 7
A flange portion 7 for bolting is attached to one end surface of a rectangular tube portion 7a having an internal dimension comparable to that of the cooling plate insertion port 6a.
b, and the other end surface of the rectangular tube portion 7a is welded to the steel shell 6 with the other end surface aligned with the cooling plate insertion opening 6a. The cooling disk 1 is inserted into the furnace wall 5 from the housing 7 through the cooling disk insertion port 6a and is embedded in the furnace wall 5, and the tip side end surface of the flange 4 is abutted against the flange portion 7b, and the gasket 8 is inserted from behind. After applying the pressing plate 9 similar to the flange part 7b
is positioned behind the packing 8, and the pressing plate 9 and the flange portion 7b are tightened together by a bolt 10a extending between them and a nut 10b screwed into the bolt 10a. The gasket 8 seals the gap between the cooling plate 1 and the steel shell 6, and prevents the gas inside the furnace from blowing out to the outside when the wall surface recedes due to erosion of the furnace wall bricks.
叙上の如く鉄皮６に取付けられた冷却盤１には
図示しない給排水管が開口２ａ，２ｂに連結され
る外、本発明方法の実施にあたつては補修剤圧入
のための装置が開口３ａに連結される。即ち１１
は冷却盤１の補修剤通流路３の後端側開口３ａに
螺合嵌着されたニツプルであつて、ニツプル１１
には流量調節弁（以下マリース弁という）１３及
び逆止弁１５がこの順に直列に連結されており、
逆止弁１５はモルタル供給源（図示せず）に連結
されていて、マリース弁１３が開路されると高圧
のモルタルがこれら逆止弁１５、マリース弁１３
及びニツプル１１を介して補修剤通流路３へ供給
されるようになつている。逆止弁１５は弁体１５
ａにて逆止される室内にガス導入管１４を連通さ
せて、ここに高圧のN2ガスを導入し得るように
なつていて、この室内に粉塵が侵入するのを防止
するようにしてある。またマリース弁１３はその
開閉により補修剤通流路３へ供給するモルタル量
を調節する。更にニツプル１１の冷却盤１側先端
及びマリース弁１３側後端には均圧用孔を有する
アルミ箱又は金網からなるダストシール１２が取
付けられており、炉内の粉塵がマリース弁１３側
へ吹出すのを防止している。 As described above, water supply and drainage pipes (not shown) are connected to the openings 2a and 2b of the cooling plate 1 attached to the steel shell 6, and when carrying out the method of the present invention, a device for press-in repair agent is connected to the openings. 3a. That is, 11
is a nipple screwed into the rear end side opening 3a of the repair agent passage 3 of the cooling board 1;
A flow control valve (hereinafter referred to as a Maryse valve) 13 and a check valve 15 are connected in series in this order.
The check valve 15 is connected to a mortar supply source (not shown), and when the Maryse valve 13 is opened, high-pressure mortar flows through the check valve 15 and the Maryse valve 13.
The repair agent is supplied to the repair agent flow path 3 via the nipple 11. The check valve 15 is a valve body 15
A gas introduction pipe 14 is connected to the chamber that is checked at point a, so that high-pressure N2 gas can be introduced here, and dust is prevented from entering the chamber. . Moreover, the mortar amount supplied to the repair agent flow path 3 is adjusted by opening and closing the mortar valve 13. Furthermore, a dust seal 12 made of an aluminum box or a wire mesh having pressure equalization holes is attached to the tip of the nipple 11 on the side of the cooling plate 1 and the rear end on the side of the Maryse valve 13 to prevent dust in the furnace from blowing out to the Maryse valve 13 side. is prevented.
叙上の如く構成された装置により本発明方法を
実施する場合は、通常操業時においてはニツプル
１１を螺合していない冷却盤１の冷却水通流路２
を通流する冷却水により炉壁の冷却がなされる。 When carrying out the method of the present invention using the apparatus configured as described above, the cooling water flow path 2 of the cooling plate 1 to which the nipple 11 is not screwed together during normal operation.
The reactor wall is cooled by the cooling water flowing through the reactor.
而して炉壁れんがが炉内の高温高圧ガス等に侵
食され、壁面が、後退して炉壁５が薄くなつた場
合、炉壁５及び鉄皮６が昇温し、炉壁５内に埋込
んだ熱電対の検出温度が上昇し、鉄皮６が赤熱状
態になる。この熱電対の検出温度の上昇又は鉄皮
６の赤熱化により炉壁５の侵食を検知すると、多
数の冷却盤１のうちその侵食部分の略中央に埋設
されている冷却盤１の後端面の開口３ａに、マリ
ース弁１３及び逆止弁１５を直列に連結させたニ
ツプル１１を螺合嵌着する。マリース弁１３は当
初閉じてあり、逆止弁１５は前述の如くモルタル
供給源に連結されていて、炉内圧（約１〜３Kg/
cm2）よりも高圧のモルタルが供給される。また逆
止弁１５の室内にモルタル圧より高圧のN2ガス
が導入されており、粉塵の室内侵入を防止すると
共に、逆止弁１５の弁体１５ａを閉路せしめてモ
ルタルの逆止弁１５内侵入を阻止している。そし
て炉壁５及び鉄皮６が所定の管理上限温度にまで
昇温した場合、マリース弁１３を開路せしめる
と、炉内圧よりも高圧のモルタル及びN2ガスは
補修剤通流路３を通流し、炉壁５と開口３ｂとの
間に若干残存している炉壁れんがを圧砕して高圧
の炉内に圧入される。この圧入されたモルタルが
炉壁内面の侵食部分に付着して溶損箇所を修復す
る。そして侵食部分を補修するのに十分な量のモ
ルタルを圧入し終えた後マリース弁１３を閉じ、
ニツプル１１を冷却盤１の開口３ａから取外し、
モルタル圧入装置を取外す。次いで補修剤通流路
３に残存しているモルタルが固化しないうちに、
補修剤通流路３内に金属製又は耐火物製の棒（図
示せず）を挿入しておく。この棒はモルタルにて
補修した部分が再度侵食された場合に、これを抜
き取ることによつて補修剤通流路３を再度補修剤
通流路として使用することを可能にする。なおモ
ルタルの高炉炉内圧入時には、上述の如くN2ガ
スとモルタルとを共に炉内に圧入することとせ
ず、マリース弁１３を開路する際にN2ガスの逆
止弁１５への供給を断ち、モルタルのみを炉内に
圧入することとしてもよいことは勿論である。ま
たモルタルを鉄皮６側から炉壁５内面へ供給する
ための炉壁内外を連通させ得る構成とした補修剤
導入具としては、上述の如き構成の冷却盤１に限
らず、例えば第３図、第４図に示す如き構成の冷
却盤２１を使用してもよい。第３図は冷却盤２１
の縦断面図、第４図は第３図の―線による断
面図である。冷却盤１と同様の部分には同符号を
付して説明を省略する。この冷却盤２１は冷却盤
１とその補修剤通流路の形成位置が異なつてい
る。即ち冷却盤２１の補修剤通流路２３は、補修
剤通流路３同様断面が円形であつて、冷却盤２１
の幅方向中央をその後端面から先端部に向けて若
干下傾して貫通するように形成してあり、冷却盤
２１の下面における先端近傍及び後端面における
厚み方向中央より若干上方において開口してい
る。この補修剤通流路２３も炉壁れんがの侵食に
より炉壁内面が冷却盤２１下面における開口２３
ｂ位置近傍まで後退してきたときは、後面におけ
る開口２３ａに補修剤圧入のための装置（第１図
参照）を連結し、モルタルを補修剤通流路２３内
に圧入し、開口２３ｂから炉内に供給して侵食部
分を補修する。更に補修剤導入具として例えば単
なるパイプを鉄皮６を貫通して炉壁に埋設し、そ
の炉内側端部を炉壁内面近傍の炉壁内に位置せし
めて該パイプにニツプル１１を連通連結し、モル
タルを該パイプに通流させて炉内に圧入すること
としてもよい。更にまたモルタルの給断及びその
流量を調節する流量調節弁としては上述の如きマ
リース弁に限らず、例えばボール弁等でもよいこ
とは勿論である。更にまた逆止弁は羽口近傍から
炉内に重油を吹込む際に使用されるようなタイプ
のものでもよい。 When the furnace wall bricks are eroded by the high-temperature, high-pressure gas, etc. inside the furnace, and the wall surface recedes and the furnace wall 5 becomes thin, the temperature of the furnace wall 5 and the steel shell 6 rises, and the inside of the furnace wall 5 increases. The temperature detected by the embedded thermocouple rises, and the iron skin 6 becomes red hot. When erosion of the furnace wall 5 is detected due to an increase in the temperature detected by this thermocouple or the iron skin 6 becomes red hot, the rear end surface of the cooling disk 1 buried approximately in the center of the corroded portion of the many cooling disks 1 is detected. A nipple 11 having a Maryse valve 13 and a check valve 15 connected in series is screwed into the opening 3a. The marise valve 13 is initially closed, the check valve 15 is connected to the mortar supply source as described above, and the furnace internal pressure (approximately 1 to 3 Kg/
cm 2 ) is supplied with mortar at a higher pressure. In addition, N 2 gas with a higher pressure than the mortar pressure is introduced into the chamber of the check valve 15 to prevent dust from entering the chamber, and to close the valve body 15a of the check valve 15 to prevent the inside of the mortar check valve 15. Preventing intrusion. When the temperature of the furnace wall 5 and the steel shell 6 rises to a predetermined control upper limit temperature, the Maryse valve 13 is opened, and the mortar and N 2 gas, which is at a higher pressure than the furnace internal pressure, are allowed to flow through the repair agent flow path 3. The furnace wall bricks remaining slightly between the furnace wall 5 and the opening 3b are crushed and then press-fitted into the high-pressure furnace. This press-fitted mortar adheres to the eroded parts of the inner surface of the furnace wall and repairs the melted parts. After press-fitting enough mortar to repair the eroded portion, close the Marise valve 13.
Remove the nipple 11 from the opening 3a of the cooling plate 1,
Remove the mortar press-in device. Next, before the mortar remaining in the repair agent flow path 3 solidifies,
A metal or refractory rod (not shown) is inserted into the repair agent flow path 3. If the part repaired with mortar is eroded again, this rod can be removed to allow the repair agent flow path 3 to be used again as a repair agent flow path. Note that when mortar is pressurized into the blast furnace, the N 2 gas and mortar are not injected into the furnace together as described above, but the supply of N 2 gas to the check valve 15 is cut off when the Maryse valve 13 is opened. Of course, only the mortar may be press-fitted into the furnace. Further, as a repair agent introducing tool configured to allow communication between the inside and outside of the furnace wall for supplying mortar from the side of the iron shell 6 to the inner surface of the furnace wall 5, the cooling plate 1 having the above-mentioned configuration is not limited, but for example, as shown in FIG. , a cooling plate 21 having a configuration as shown in FIG. 4 may be used. Figure 3 shows the cooling plate 21
FIG. 4 is a cross-sectional view taken along the line ``--'' in FIG. Components similar to those of the cooling plate 1 are designated by the same reference numerals and their explanations will be omitted. This cooling plate 21 is different from the cooling plate 1 in the formation position of its repair agent passage. That is, the repair agent passage 23 of the cooling plate 21 has a circular cross section like the repair agent passage 3, and the repair agent passage 23 of the cooling plate 21 has a circular cross section.
It is formed so that the center in the width direction is inclined slightly downward from the rear end surface to the tip end, and is opened near the tip on the lower surface of the cooling plate 21 and slightly above the center in the thickness direction on the rear end surface. . This repair agent passage 23 also has an opening 23 on the lower surface of the cooling plate 21 due to the inner surface of the furnace wall due to erosion of the furnace wall bricks.
When it has retreated to the vicinity of position b, connect a device for press-fitting the repair agent (see Figure 1) to the opening 23a on the rear surface, press the mortar into the repair agent flow path 23, and press the mortar into the furnace from the opening 23b. supply to repair the eroded areas. Further, as a repair agent introducing tool, for example, a simple pipe is penetrated through the steel shell 6 and buried in the furnace wall, and the inner end of the pipe is positioned in the furnace wall near the inner surface of the furnace wall, and the nipple 11 is connected to the pipe in communication. , mortar may be passed through the pipe and press-fitted into the furnace. Furthermore, the flow rate control valve for controlling supply/disconnection of mortar and its flow rate is not limited to the above-mentioned Maryse valve, but it goes without saying that, for example, a ball valve or the like may be used. Furthermore, the check valve may be of the type used when heavy oil is injected into the furnace from the vicinity of the tuyere.
以上詳述した如く本発明方法による場合は、炉
壁れんがが炉内の高温高圧ガス等に侵食されて炉
壁内面が後退してきたときに、高炉を休風するこ
となくモルタル等の補修剤を炉内に圧入して侵食
部分を補修することができる等、本発明は高炉操
業管理上極めて実益が高い。 As detailed above, in the case of the method of the present invention, when the furnace wall bricks are eroded by the high-temperature, high-pressure gas in the furnace and the inner surface of the furnace wall recedes, a repair agent such as mortar can be applied without shutting down the blast furnace. The present invention is extremely beneficial in terms of blast furnace operational management, such as being able to repair eroded portions by press-fitting into the furnace.
第１図は本発明方法の実施状態を示す模式図、
第２図は冷却盤１の水平断面図、第３図は冷却盤
２１の縦断面図、第４図は第３図の―線によ
る断面図である。
１，２１……冷却盤、２……冷却水通流路、
３，２３……補修剤通流路、５……炉壁、６……
鉄皮、７……ハウジング、１３……マリース弁、
１５……逆止弁。
FIG. 1 is a schematic diagram showing the implementation state of the method of the present invention,
2 is a horizontal sectional view of the cooling plate 1, FIG. 3 is a vertical sectional view of the cooling plate 21, and FIG. 4 is a sectional view taken along the line ``--'' in FIG. 1, 21...Cooling plate, 2...Cooling water passage,
3, 23... Repair agent flow path, 5... Furnace wall, 6...
Iron skin, 7... Housing, 13... Maries valve,
15...Check valve.
Claims (1)
面の後退により炉壁内外を連通させ得る構成とし
た補修剤導入具を予め設けておき、炉外において
該補修剤導入具に流量調節弁及び炉内側から炉外
側への通流を阻止する逆止弁を連結し、必要に応
じて炉外より、これらの弁及び前記補修剤導入具
を介して、炉壁補修剤を炉内へ圧入することを特
徴とする高炉炉壁の補修方法。1. A repair agent introduction tool is installed in advance and is configured to penetrate the blast furnace shell and be buried in the furnace wall so that the inside and outside of the furnace wall can be communicated by retracting the inner surface of the furnace wall. A control valve and a check valve that prevents flow from the inside of the furnace to the outside of the furnace are connected, and if necessary, the furnace wall repair agent can be introduced into the furnace from outside the furnace through these valves and the repair agent introduction tool. A method for repairing a blast furnace wall, which is characterized by press-fitting the wall into a blast furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18241780A JPS57105675A (en) | 1980-12-22 | 1980-12-22 | Repair of blast furnace wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18241780A JPS57105675A (en) | 1980-12-22 | 1980-12-22 | Repair of blast furnace wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57105675A JPS57105675A (en) | 1982-07-01 |
| JPS6353475B2 true JPS6353475B2 (en) | 1988-10-24 |
Family
ID=16117916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18241780A Granted JPS57105675A (en) | 1980-12-22 | 1980-12-22 | Repair of blast furnace wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57105675A (en) |
-
1980
- 1980-12-22 JP JP18241780A patent/JPS57105675A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57105675A (en) | 1982-07-01 |
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