JP2950177B2 - Hot repair method and heat insulation device for high temperature furnace wall - Google Patents
Hot repair method and heat insulation device for high temperature furnace wallInfo
- Publication number
- JP2950177B2 JP2950177B2 JP6323805A JP32380594A JP2950177B2 JP 2950177 B2 JP2950177 B2 JP 2950177B2 JP 6323805 A JP6323805 A JP 6323805A JP 32380594 A JP32380594 A JP 32380594A JP 2950177 B2 JP2950177 B2 JP 2950177B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- parasol
- opening
- furnace wall
- type heat
- 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 - Lifetime
Links
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、高温雰囲気炉の炉壁
耐火物の熱間補修を行う際、炉内からの熱風の吹き出し
および炉内への外気の侵入を防止でき、炉壁開口部より
簡単に取付けできる防熱装置および該防熱装置を用いた
熱間補修方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can prevent the blowing of hot air from the inside of a furnace and the invasion of outside air into the furnace during hot repair of a furnace wall refractory of a high temperature atmosphere furnace, and can prevent the furnace wall from opening. The present invention relates to a heat insulating device that can be more easily attached and a hot repair method using the heat insulating device.
【０００２】[0002]
【従来の技術】鉄鋼業を初めとする各種産業分野におい
ては、加熱炉、均熱炉、熱処理炉等の熱設備（以下窯炉
という）が設置されている。窯炉の内壁には、断熱材と
して定形、不定形耐火物あるいはセラミックファイバー
等がライニングされている。しかし、炉内の断熱材は、
いずれのライニング材であっても、使用中に部分的な損
傷が生じることを防止することは不可能である。2. Description of the Related Art In various industrial fields such as the steel industry, heating equipment (hereinafter, kiln) such as a heating furnace, a soaking furnace, and a heat treatment furnace is installed. The inner wall of the kiln is lined with a regular or irregular refractory or ceramic fiber as a heat insulating material. However, the insulation in the furnace
With any lining material, it is impossible to prevent partial damage during use.
【０００３】窯炉のライニング材が損傷した際の補修方
法としては、窯炉を休止して炉温を下げ冷間補修する手
段が広く一般に採用されている。例えば、炉内側よりラ
イニング材を損傷部より若干広範囲に解体し、解体箇所
を定形、不定形耐火物あるいはセラミックファイバー等
により更新する手段が採用されている。しかし、上記従
来の冷間補修は、いずれも作業者が炉内に入って作業で
きる程度まで炉内温度を下げる必要があり、生産中断に
よるコストアップの問題や炉温の昇降に起因する設備上
の諸問題、すなわち耐火物や鉄皮の膨張、収縮による目
地切れやライニングの脱落等の損傷が生じ易く、補修部
分が拡大する恐れが多いという問題点を有している。[0003] As a repair method when the lining material of the kiln is damaged, means for stopping the kiln, lowering the furnace temperature and performing cold repair is widely and generally employed. For example, a means is employed in which the lining material is dismantled slightly wider than the damaged portion from the inside of the furnace, and the disassembly location is renewed with a fixed or irregular refractory or ceramic fiber. However, in the conventional cold repairs described above, it is necessary to lower the furnace temperature to such an extent that workers can enter the furnace and perform work. In other words, there is a problem that damages such as breakage of joints and falling of the lining are liable to occur due to expansion and contraction of the refractory and the steel shell, and the repaired portion is likely to be enlarged.
【０００４】上記冷間補修の問題点を解決する方法とし
ては、繊維質耐火物をライニングした鉄皮式窯炉におい
て、ライニング損傷部を鉄皮と共に切断除去し、ついで
切断開口部外方から熱遮蔽板を炉内に挿入して前記切断
開口部を炉内側から閉塞し、炉内側からの熱放射および
高温ガスの噴出を遮蔽したのち、予め鉄板に繊維質耐火
物をライニングした補修用耐火パネルを前記切断開口部
に嵌装し、該切断開口部と補修用耐火パネルとの間隙に
耐火物を充填したのち、前記鉄板を鉄皮に溶接する方法
（特開平１−１２３９９２号公報）が提案されている。[0004] As a method of solving the above-mentioned problem of the cold repair, a damaged portion of a lining is cut and removed together with a steel shell in a steel furnace type furnace lined with a fibrous refractory, and then heat is applied from outside the cut opening. After inserting a shielding plate into the furnace, closing the cutting opening from the inside of the furnace, shielding heat radiation from the inside of the furnace and jetting of high-temperature gas, and repairing the refractory panel in which a fibrous refractory is previously lined on an iron plate. Is fitted in the cutting opening, a gap between the cutting opening and the repair fireproof panel is filled with a refractory, and then the iron plate is welded to a steel shell (Japanese Patent Application Laid-Open No. 1-123992). Have been.
【０００５】[0005]
【発明が解決しようとする課題】上記特開平１−１２３
９９２号公報に開示の方法は、鉄皮と共にライニング損
傷部を切断除去して開口するに際しては、熱風の吹き出
し防止のために炉内圧力の調整が必要である。また、こ
の補修方法は、ライニング材をスタッドや取付けボルト
等によって鉄皮に固定するセラミックファイバーやキャ
スタブル等の不定形耐火物で構築されている炉壁の補修
のみ有効であるが、煉瓦で構築されている炉壁の場合
は、大きく開口すると迫りがなくなって目地が緩んでし
まうため、適用することはできない欠点がある。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 1-123 has been disclosed.
In the method disclosed in Japanese Patent Application Publication No. 992, when cutting and removing the damaged lining portion together with the iron skin to open the opening, it is necessary to adjust the furnace pressure in order to prevent hot air from blowing out. In addition, this repair method is effective only for repairing furnace walls that are made of irregular-shaped refractories such as ceramic fibers or castables that fix the lining material to the steel shell with studs or mounting bolts, etc. In the case of a furnace wall having a large opening, there is a drawback that it cannot be applied because a large opening makes it impossible to approach and the joint becomes loose.
【０００６】この発明の目的は、上記従来技術の欠点を
解消し、熱風の吹き出し防止のための炉内圧力の調整が
不要で、かつ全てのライニング材にも適用できる高温炉
壁の熱間補修方法および防熱装置を提供することにあ
る。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art, to eliminate the need for adjusting the furnace pressure for preventing hot air from blowing out, and to apply hot repair to a high-temperature furnace wall which can be applied to all lining materials. It is to provide a method and a heat shield.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、上記目的
を達成すべく種々試験研究を重ねた結果、耐火繊維クロ
スで製縫した断熱布を取付けたパラソル型防熱装置を折
り畳んだ状態で鉄皮側開口部から高温雰囲気炉内に挿入
し、炉内でパラソル型防熱装置を開いてその状態で炉内
壁に断熱布を密着させることによって、炉内圧力を調整
することなく、炉内からの熱風の吹き出しおよび炉内へ
の外気の侵入を防止でき、炉外側から補修範囲外の損傷
防止処置を行った後、補修範囲のライニング損傷部を解
体撤去し、折り畳んだパラソル型防熱装置を取出すため
の最小開口部のみを残してライニング材を施工し、つい
でパラソル型防熱装置を炉内で折り畳んだのち最小開口
部から取出し、最後に最小開口部にライニング材を施工
し、開口部鉄皮を溶接復旧することによって、全てのラ
イニング材にも適用できることを究明し、この発明に到
達した。Means for Solving the Problems The present inventors have conducted various tests and studies to achieve the above object, and as a result, have found that a parasol-type heat insulating device equipped with an insulating cloth sewn with a fire-resistant fiber cloth is folded. From the inside of the furnace without adjusting the furnace pressure by inserting the parasol-type heat shield in the furnace and then adhering the heat insulating cloth to the furnace inner wall in this state, inserting the parasol-type heat shield in the furnace through the opening on the steel side Can prevent hot air blowing and outside air from entering the furnace, take measures to prevent damage outside the repair area from the outside of the furnace, dismantle and remove the damaged portion of the lining in the repair area, and take out the folded parasol-type heat shield Lining material, leaving only the minimum opening for the umbrella, then fold the parasol-type heat shield in the furnace, take it out from the minimum opening, and finally apply the lining material to the minimum opening, By contacting recovery it was investigated that can be applied to all of the lining material, and reached the present invention.
【０００８】すなわちこの発明は、高温炉壁の炉壁ライ
ニングの熱間補修方法において、耐火繊維クロスで製縫
した断熱布を取付けたパラソル型防熱装置を折り畳んだ
状態で鉄皮側開口部から高温雰囲気炉内に挿入し、炉内
でパラソル型防熱装置を開いてその状態で炉内壁に断熱
布を密着させ、炉外側から補修範囲外の損傷防止処置を
行ったのち、補修範囲のライニング損傷部を解体撤去
し、折り畳んだパラソル型防熱装置を取出すための最小
開口部のみを残してライニング材を施工し、ついでパラ
ソル型防熱装置を炉内で折り畳んだのち最小開口部から
取出し、最後に最小開口部にライニング材を施工し、開
口部鉄皮を溶接復旧することを特徴とする高温炉壁の熱
間補修方法である。That is, according to the present invention, in a method for hot repair of a furnace wall lining of a high temperature furnace wall, a parasol-type heat insulating device to which a heat insulating cloth sewn with a refractory fiber cloth is attached is heated from an opening on a steel shell side in a folded state. After inserting the umbrella in the furnace, open the umbrella-type heat shield in the furnace and then attach the heat insulating cloth to the inner wall of the furnace, take measures to prevent damage outside the repair area from the outside of the furnace, and then repair the lining damaged area in the repair area. The umbrella was dismantled and removed, the lining material was installed leaving only the minimum opening to take out the folded parasol-type heat shield, then the parasol-type heat shield was folded in the furnace, removed from the minimum opening, and finally the minimum opening A hot repair method for a high-temperature furnace wall, characterized in that a lining material is applied to a portion of the furnace to restore welding of an opening.
【０００９】また、この発明は、高温炉壁の炉壁ライニ
ングを熱間補修する際に用いる防熱装置において、外管
と内管からなる支持棒の操作により開閉自在のパラソル
型フレームに、耐火繊維クロスで製縫した断熱布を取付
けたことを特徴とする高温炉壁の熱間補修時の防熱装置
である。Further, the present invention relates to a heat insulating device used for hot repair of a furnace wall lining of a high-temperature furnace wall, wherein a fireproof fiber is provided on a parasol type frame which can be opened and closed by operating a support rod composed of an outer tube and an inner tube. A heat insulating device for hot repair of a high-temperature furnace wall, wherein a heat insulating cloth sewn with a cloth is attached.
【００１０】[0010]
【作用】この発明においては、耐火繊維クロスで製縫し
た断熱布を取付けたパラソル型防熱装置を折り畳んだ状
態で鉄皮側開口部から高温雰囲気炉内に挿入し、炉内で
パラソル型防熱装置を開いてその状態で炉内壁に断熱布
を密着させることによって、炉内圧力の調整を行うこと
なく、炉内からの熱風の吹き出しおよび炉内への外気の
侵入を防止することができる。また、この発明において
は、炉外側から補修範囲外の損傷防止処置を行ったの
ち、補修範囲のライニング損傷部を解体撤去し、折り畳
んだパラソル型防熱装置を取出すための最小開口部のみ
を残してライニング材を施工し、ついでパラソル型防熱
装置を炉内で折り畳んだのち最小開口部から取出し、最
後に最小開口部にライニング材を施工し、開口部鉄皮を
溶接復旧することによって、パラソル型防熱装置を取出
用の開口部を小さくできるため、炉内の圧力調整を行う
ことなく、炉内からの熱風の吹き出しおよび炉内への外
気の侵入を防止することができると共に、定形、不定形
耐火物あるいはセラミックファイバー等全てのライニン
グ材の場合にも適用することができ、しかも、パラソル
型防熱装置の取付けも簡単で、短時間で装着することが
できる。According to the present invention, a parasol-type heat-insulating device equipped with a heat-insulating cloth sewn with a fire-resistant fiber cloth is inserted into a high-temperature atmosphere furnace through an opening on a steel side in a folded state, and the parasol-type heat-insulating device is inserted into the furnace. By opening the furnace and bringing the heat insulating cloth into close contact with the furnace inner wall in this state, it is possible to prevent hot air from being blown out of the furnace and intrusion of outside air into the furnace without adjusting the furnace pressure. Further, in the present invention, after taking measures to prevent damage outside the repair range from the outside of the furnace, the damaged portion of the lining in the repair range is dismantled and removed, leaving only the minimum opening for removing the folded parasol-type heat shield. After the lining material is installed, the parasol-type heat insulation device is folded in the furnace, taken out from the minimum opening, and finally the lining material is applied to the minimum opening, and the iron shell at the opening is recovered by welding to recover the parasol-type heat insulation device. Since the opening for taking out the device can be made smaller, it is possible to prevent hot air from being blown out of the furnace and intrusion of outside air into the furnace without adjusting the pressure inside the furnace, and to provide fixed and irregular shaped fireproof. It can be applied to all types of lining materials such as objects and ceramic fibers. Can.
【００１１】また、この発明の防熱装置は、外管と内管
からなる支持棒の操作により開閉自在のパラソル型フレ
ームに、耐火繊維クロスで製縫した断熱布を取付けたこ
とによって、パラソル部の窯炉内への挿入を折り畳んで
閉じた状態で行えば、小さな開口から挿入することがで
き、かつ窯炉へ挿入後に支持棒を操作してパラソル部を
開放したのち、支持棒を引っ張って断熱布を炉壁のライ
ニング材に密着すれば、窯炉の作業を中断することなく
防熱装置を設置することができる。しかも、防熱装置を
設置後は、補修箇所のライニング材を直ちに解体除去
し、積替え復旧する際も折り畳んだパラソル部の取出し
用の最小限の開口を残しておけば、復旧後パラソル部を
折り畳んだ状態で取出すことができる。Further, the heat insulation device of the present invention has a parasol-type frame which can be opened and closed by operating a support rod composed of an outer tube and an inner tube, and a heat insulating cloth sewn with a fire-resistant fiber cloth attached to the parasol-type frame. If the insertion into the kiln is folded and closed, it can be inserted through a small opening, and after inserting it into the kiln, operate the support rod to open the parasol part, then pull the support rod to insulate it. If the cloth is brought into close contact with the lining material of the furnace wall, the heat insulating device can be installed without interrupting the kiln operation. In addition, after installing the heat insulation device, the lining material at the repaired location was immediately dismantled and removed, and the parasol part was folded after restoration if the minimum opening for taking out the folded umbrella part was left when resuming transshipment. Can be removed in a state.
【００１２】パラソル型防熱装置の耐火繊維クロスで製
縫した断熱布としては、シリカクロス、セラミックファ
イバークロス、アルミナファイバークロス縫合製品の断
熱シートから選択することによって、１３００℃の高温
域まで取付けが可能である。また、パラソル型防熱装置
の支持棒は、空気冷却を施したものを用いることができ
る。The heat insulation cloth sewn with fireproof fiber cloth of the parasol type heat insulation device can be installed up to a high temperature range of 1300 ° C. by selecting from heat insulation sheets of silica cloth, ceramic fiber cloth and alumina fiber cloth sewn products. It is. In addition, the support rod of the parasol-type heat-insulating device that has been subjected to air cooling can be used.
【００１３】[0013]
【実施例】以下にこの発明の詳細を実施の一例を示す図
１ないし図３に基づいて説明する。図１はこの発明の実
施例にかかるライニング材として煉瓦積み構造の加熱炉
煙道の概略断面図、図２は煙道耐火煉瓦の部分損傷部の
拡大断面図、図３はこの発明のパラソル型防熱装置の取
付け状況の側断面図である。図１ないし図３において、
１は予熱帯２、加熱帯３、均熱帯４および煙道５から構
成された加熱炉で、煙道５の鉄皮６の内側には断熱ボー
ド７、耐火断熱煉瓦８および耐火煉瓦９がライニングさ
れている。煙道５の雰囲気温度は８００〜８５０℃であ
る。１０は煙道５の耐火煉瓦９の部分損傷部、１１は煙
道５に設けたレキュペレータである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic sectional view of a heating furnace flue having a brickwork structure as a lining material according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a partially damaged portion of a flue refractory brick, and FIG. It is a sectional side view of the attachment situation of a heat insulation device. 1 to 3,
Reference numeral 1 denotes a heating furnace composed of a pre-tropical zone 2, a heating zone 3, a soaking zone 4, and a flue 5, and a heat insulating board 7, a fire-resistant insulating brick 8 and a fire-resistant brick 9 are lined inside a steel shell 6 of the flue 5. Have been. The ambient temperature of the flue 5 is 800 to 850 ° C. Reference numeral 10 denotes a partially damaged portion of the refractory brick 9 of the flue 5, and reference numeral 11 denotes a recuperator provided in the flue 5.
【００１４】煙道５の耐火煉瓦９の部分損傷部１０を部
分補修する場合は、部分損傷部１０の鉄皮６ａを切断し
て取外したのち、部分損傷部１０のほぼ中央にパラソル
型防熱装置搬入用として必要最小限度の範囲で断熱ボー
ド７、耐火断熱煉瓦８および耐火煉瓦９にエアードリル
またはブレーカーを用いて開口する。この開口部１２か
らパラソル型フレーム１３に耐火繊維製クロス１４を取
付けたパラソル型防熱装置１５の折り畳んで閉じた状態
のパラソル部を挿入する。この場合の開口部１２の大き
さは、折り畳んで閉じた状態のパラソル部を挿入するの
に必要最小限度としたことによって、窯炉の作業を中断
する必要がなく、かつ、開口部１２からの熱風の吹き出
しならびに炉内への外気の侵入を抑制することができ、
炉内圧力の調整は全く必要がない。In the case of partially repairing the partially damaged portion 10 of the refractory brick 9 of the flue 5, after cutting and removing the steel shell 6 a of the partially damaged portion 10, a parasol-type heat insulation device is provided almost at the center of the partially damaged portion 10. Openings are made in the heat insulating board 7, the fire-resistant heat-insulating bricks 8 and the fire-resistant bricks 9 using an air drill or a breaker within a minimum necessary range for carrying in. From this opening 12, the umbrella portion of the umbrella-type heat shield 15 with the fire-resistant fiber cloth 14 attached to the umbrella-type frame 13 is closed and inserted. In this case, the size of the opening 12 is set to the minimum necessary for inserting the umbrella portion in a folded and closed state, so that it is not necessary to interrupt the operation of the kiln, and It can suppress the blowing of hot air and the intrusion of outside air into the furnace,
No adjustment of furnace pressure is required.
【００１５】また、パラソル型防熱装置１５の支持棒１
６は、外管１７と内管１８の二重管となっており、外管
１７と内管１８の間隙には冷却用空気１９が吹き込まれ
ており、パラソル型防熱装置１５のパラソル部の開閉操
作を容易としている。パラソル型防熱装置１５のパラソ
ル部を開口部１２から炉内に挿入後、外管１７をさらに
押し込むことによって、パラソル部が開く構造となって
いる。パラソル部が開いたのち、支持棒１６の内管１８
を炉外側に引っ張ることによって、パラソル部に取付け
られている耐火繊維製クロス１４が炉壁の耐火煉瓦９に
密着し、パラソル型防熱装置１５の取付けを完了する。The support rod 1 of the parasol-type heat insulating device 15
Reference numeral 6 denotes a double pipe of an outer pipe 17 and an inner pipe 18, and cooling air 19 is blown into a gap between the outer pipe 17 and the inner pipe 18 to open and close a parasol portion of the parasol type heat insulating device 15. The operation is easy. After the parasol part of the parasol type heat insulation device 15 is inserted into the furnace from the opening part 12, the outer tube 17 is further pushed in, so that the parasol part is opened. After the umbrella is opened, the inner pipe 18 of the support rod 16
Is pulled to the outside of the furnace, so that the refractory fiber cloth 14 attached to the parasol portion comes into close contact with the refractory brick 9 on the furnace wall, and the attachment of the parasol type heat insulating device 15 is completed.
【００１６】パラソル型防熱装置１５の取付けが完了し
た後は、補修箇所上部に煉瓦受け金物２０を取付け、補
修範囲の断熱ボード７、耐火断熱煉瓦８および耐火煉瓦
９を解体除去する。しかるのち復旧する方法としては、
パラソル型防熱装置１５の取出し用開口部を最小限に残
して下部より断熱ボード７、耐火断熱煉瓦８および耐火
煉瓦９を積み上げる。この場合煉瓦受け金物２０は、片
側から取外して順次耐火煉瓦９、耐火断熱煉瓦８および
断熱ボード７と差し替える。After the attachment of the parasol-type heat insulating device 15 is completed, the brick receiving hardware 20 is attached to the upper part of the repaired part, and the heat insulating board 7, the fireproof heat insulating brick 8 and the fireproof brick 9 in the repair area are dismantled and removed. Then, as a recovery method,
The heat-insulating board 7, the fire-resistant heat-insulating bricks 8, and the fire-resistant bricks 9 are stacked from the lower part while leaving the taking-out opening of the parasol-type heat insulating device 15 to a minimum. In this case, the brick receiving hardware 20 is removed from one side and sequentially replaced with the refractory brick 9, the refractory heat insulating brick 8 and the heat insulating board 7.
【００１７】したがって、補修範囲の断熱ボード７、耐
火断熱煉瓦８および耐火煉瓦９の解体中ならびに下部よ
り断熱ボード７、耐火断熱煉瓦８および耐火煉瓦９を積
み上げ作業中は、パラソル型防熱装置１５のパラソル部
に取付けられている耐火繊維製クロス１４が炉壁の耐火
煉瓦９に密着し、作業環境を炉内高温雰囲気から遮断し
ているので、解体、積み替え作業に悪影響を与えること
はない。次にパラソル型防熱装置１５の取外しは、引っ
張っていた支持棒１６の内管１８を炉内側に押し込むこ
とによってパラソル部を閉じたのち、パラソル型防熱装
置１５を開口部を介して取出す。パラソル型防熱装置１
５の取出しが完了すれば、開口部に耐火煉瓦、耐火断熱
煉瓦を差し込み、鉄皮を溶接して補修作業を完了する。Therefore, during the dismantling of the insulation board 7, the fire-resistant insulation brick 8 and the fire-resistant brick 9 in the repair range, and during the work of stacking the insulation board 7, the fire-resistant insulation brick 8 and the fire-resistant brick 9 from below, the parasol-type heat insulation device 15 is used. The refractory fiber cloth 14 attached to the umbrella portion is in close contact with the refractory brick 9 on the furnace wall, and shields the working environment from the high-temperature atmosphere in the furnace, so that there is no adverse effect on the dismantling and reloading work. Next, the parasol-type heat shield 15 is removed by pushing the inner tube 18 of the support rod 16 that has been pulled into the inside of the furnace to close the parasol portion, and then removing the parasol-type heat shield 15 through the opening. Parasol type heat shield 1
When the removal of 5 is completed, refractory bricks and refractory bricks are inserted into the openings, and the steel shell is welded to complete the repair work.
【００１８】[0018]
【発明の効果】以上述べたとおり、この発明によれば、
窯炉の作業を全く中断することなく、また、炉内圧力の
調整を行うことなく、炉内からの熱風の吹き出し、炉内
への外気の侵入が防止でき、かつ、炉外側から安全、確
実に補修を行うことができる。また、部分補修として
は、直径１ｍ程度と比較的広範囲を一度に実施すること
ができる。As described above, according to the present invention,
Without interrupting the furnace operation at all and without adjusting the pressure inside the furnace, it is possible to prevent the blowing of hot air from the furnace and the intrusion of outside air into the furnace, and to ensure safety and reliability from outside the furnace. Can be repaired. In addition, the partial repair can be performed at a time over a relatively wide area of about 1 m in diameter.
【図１】この発明の実施例にかかるライニング材として
煉瓦積み構造の加熱炉煙道の概略断面図である。FIG. 1 is a schematic sectional view of a heating furnace flue having a brick structure as a lining material according to an embodiment of the present invention.
【図２】煙道耐火煉瓦の部分損傷部の拡大断面図であ
る。FIG. 2 is an enlarged sectional view of a partially damaged portion of the flue refractory brick.
【図３】この発明のパラソル型防熱装置の取付け状況の
側断面図である。FIG. 3 is a side sectional view showing a mounting state of the parasol-type heat shield of the present invention.
１ 加熱炉 ２ 予熱帯 ３ 加熱帯 ４ 均熱帯 ５ 煙道 ６、６ａ 鉄皮 ７ 断熱ボード ８ 耐火断熱煉瓦 ９ 耐火煉瓦 １０ 部分損傷部 １１ レキュペレータ １２ 開口部 １３ パラソル型フレーム １４ 耐火繊維製クロス １５ パラソル型防熱装置 １６ 支持棒 １７ 外管 １８ 内管 １９ 冷却用空気 ２０ 煉瓦受け金物 DESCRIPTION OF SYMBOLS 1 Heating furnace 2 Preliminary tropical zone 3 Heating zone 4 Uniform tropical zone 5 Flue 6, 6a Iron skin 7 Insulation board 8 Fireproof insulation brick 9 Fireproof brick 10 Partially damaged part 11 Recuperator 12 Opening 13 Parasol type frame 14 Fireproof fiber cloth 15 Parasol Mold heat shield 16 Support rod 17 Outer pipe 18 Inner pipe 19 Cooling air 20 Brick receiving hardware
───────────────────────────────────────────────────── フロントページの続き (72)発明者 米田 弥一 和歌山県和歌山市湊1850番地 住友金属 工業株式会社 和歌山製鉄所内 (58)調査した分野(Int.Cl.6，ＤＢ名) F27D 1/16 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yaichi Yoneda 1850 Minato, Wakayama-shi, Wakayama Sumitomo Metal Industries, Ltd. Wakayama Works (58) Field surveyed (Int. Cl. 6 , DB name) F27D 1/16
Claims (2)
法において、耐火繊維クロスで製縫した断熱布を取付け
たパラソル型防熱装置を折り畳んだ状態で鉄皮側開口部
から高温雰囲気炉内に挿入し、炉内でパラソル型防熱装
置を開いてその状態で炉内壁に断熱布を密着させ、炉外
側から補修範囲外の損傷防止処置を行ったのち、補修範
囲のライニング損傷部を解体撤去し、折り畳んだパラソ
ル型防熱装置を取出すための最小開口部のみを残してラ
イニング材を施工し、ついでパラソル型防熱装置を炉内
で折り畳んだのち最小開口部から取出し、最後に最小開
口部にライニング材を施工し、開口部鉄皮を溶接復旧す
ることを特徴とする高温炉壁の熱間補修方法。In a hot repair method for a furnace wall lining of a high-temperature furnace wall, a parasol-type heat-insulating device having a heat-insulating cloth sewn with a refractory fiber cloth is folded to open a high-temperature atmosphere furnace from an opening on a steel shell side. The parasol-type heat shield is opened in the furnace, and a heat-insulating cloth is adhered to the furnace inner wall in that state, and after taking measures to prevent damage outside the repair area from outside the furnace, disassemble and remove the damaged lining in the repair area Then, lining material is installed leaving only the minimum opening to take out the folded parasol type heat shield, then the parasol type heat shield is folded in the furnace, taken out from the minimum opening, and finally lined in the minimum opening A hot repair method for high-temperature furnace walls, which comprises installing material and restoring welding of the opening.
る際に用いる防熱装置において、外管と内管からなる支
持棒の操作により開閉自在のパラソル型フレームに、耐
火繊維クロスで製縫した断熱布を取付けたことを特徴と
する高温炉壁の熱間補修時の防熱装置。2. A heat insulation device used for hot repair of a furnace wall lining of a high-temperature furnace wall, wherein a parasol-type frame which can be opened and closed by operating a support rod composed of an outer tube and an inner tube is sewn with a fire-resistant fiber cloth. A heat insulating device at the time of hot repair of a high-temperature furnace wall, wherein a heat insulating cloth is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6323805A JP2950177B2 (en) | 1994-11-30 | 1994-11-30 | Hot repair method and heat insulation device for high temperature furnace wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6323805A JP2950177B2 (en) | 1994-11-30 | 1994-11-30 | Hot repair method and heat insulation device for high temperature furnace wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08159668A JPH08159668A (en) | 1996-06-21 |
| JP2950177B2 true JP2950177B2 (en) | 1999-09-20 |
Family
ID=18158810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6323805A Expired - Lifetime JP2950177B2 (en) | 1994-11-30 | 1994-11-30 | Hot repair method and heat insulation device for high temperature furnace wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2950177B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100879368B1 (en) * | 2001-10-18 | 2009-01-19 | 주식회사 포스코 | Device using tuyere for repairing refining furnace |
| JP5217563B2 (en) * | 2008-03-28 | 2013-06-19 | Ｊｆｅスチール株式会社 | Shielding plug for hot air main repair of industrial furnace and its hot air main repair method |
| JP5886252B2 (en) * | 2013-08-20 | 2016-03-16 | 株式会社エフテック・ティーエム | Repair method of ceramic fiber lining |
| CN109722261B (en) * | 2019-01-25 | 2023-11-21 | 宣化钢铁集团有限责任公司 | Coke oven horizontal flue grouting device and grouting method thereof |
-
1994
- 1994-11-30 JP JP6323805A patent/JP2950177B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08159668A (en) | 1996-06-21 |
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