JPH10251649A - Method for hanging nonrepaired brick of upper part of combustion chamber of coke oven and hanging metal fitting therefor - Google Patents
Method for hanging nonrepaired brick of upper part of combustion chamber of coke oven and hanging metal fitting thereforInfo
- Publication number
- JPH10251649A JPH10251649A JP6366397A JP6366397A JPH10251649A JP H10251649 A JPH10251649 A JP H10251649A JP 6366397 A JP6366397 A JP 6366397A JP 6366397 A JP6366397 A JP 6366397A JP H10251649 A JPH10251649 A JP H10251649A
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- brick
- repair
- bricks
- hanging
- 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.)
- Pending
Links
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コークス炉の燃焼
室煉瓦の補修に関し、特に、補修煉瓦の昇温期間中の燃
焼室上部の非補修煉瓦の懸垂方法及びそのための懸垂金
物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to repair of bricks in a combustion chamber of a coke oven, and more particularly, to a method of suspending non-repair bricks in an upper portion of a combustion chamber during a period in which a temperature of the repair brick is raised, and a suspended metal object therefor.
【０００２】[0002]
【従来の技術】水平室炉式コークス炉の燃焼室煉瓦の補
修は、補修中に装入車の荷重が燃焼室上部の非補修煉瓦
にかからないようにするため、燃焼室上部の非補修煉瓦
のフリュー覗き穴から煉瓦吊り具（例えば、実開昭６３
−５０８５３号公報参照）を挿入して燃焼室上部の非補
修煉瓦を懸垂した後、燃焼室下部の旧煉瓦を解体し、新
しい補修煉瓦を積み上げていく。2. Description of the Related Art In order to prevent the load of a charged car from being applied to the non-repair bricks in the upper part of the combustion chamber during the repair, the repair of the bricks in the upper part of the combustion chamber is performed. A brick hanging tool (eg, Shokai 63)
After the non-repair bricks in the upper part of the combustion chamber are suspended by inserting the bricks, the old bricks in the lower part of the combustion chamber are dismantled and new repair bricks are piled up.
【０００３】補修煉瓦積み終了後、フリュー覗き穴から
煉瓦吊り具を撤去し、補修煉瓦の昇温を行なって、炉体
温度を約１０００°Ｃにすると補修工事が完了する。[0003] After completion of the repair brick stacking, the brick hanging tool is removed from the flue peephole, the temperature of the repair brick is raised, and the furnace body temperature is set to about 1000 ° C, whereby the repair work is completed.
【０００４】図４は従来技術の昇温期間中の非補修煉瓦
の懸垂状態を示す概略図で、補修煉瓦積み完了後の昇温
期間中の燃焼室上部の非補修煉瓦１の懸垂は、昇温前に
燃焼室下部の補修煉瓦積み２の高さ方向の熱膨張を吸収
するために下部の補修煉瓦積み２と上部の非補修煉瓦１
との間に設けられた膨張代空間に可縮性のあるクッショ
ンモルタル３を充墳して行なっていた（中山製鋼技報Ｎ
Ｏ．２６「コークス炉全壁熱間積替補修」参照）。な
お、クッションモルタル充墳時は、同時に非補修煉瓦を
支持するためにフリュー覗き穴４から挿入していた煉瓦
吊り具を撤去していた。これは従来方法では、クッショ
ンモルタル充填後は煉瓦吊り具を撤去する方法がなかっ
たためである。FIG. 4 is a schematic view showing a suspended state of a non-repair brick during a temperature rising period according to the prior art. In order to absorb the thermal expansion in the height direction of the repair brickwork 2 at the lower part of the combustion chamber before the warming, the lower repair brickwork 2 and the upper non-repair brick 1 are absorbed.
And the expansion space provided between them is filled with shrinkable cushion mortar 3 (Nakayama Steel Engineering Reports N
O. 26 “Coke oven whole wall hot transshipment repair”). At the time of filling the cushion mortar, at the same time, the brick hanger that had been inserted through the flew peephole 4 was removed to support the non-repair brick. This is because in the conventional method, there was no method of removing the brick hanging tool after filling the cushion mortar.
【０００５】[0005]
【発明が解決しようとする課題】前記従来技術では、煉
瓦吊り具を撤去した瞬間に燃焼室上部の非補修煉瓦が下
方のクッションモルタルに載るが、クッションモルタル
は荷重が加わると最大７０％程度縮み、この縮んだ分だ
け非補修煉瓦が下方に脱落し、非補修煉瓦は目地切れを
起こして目地に隙間ができることがあり、操業時にはこ
の隙間からガス漏れが発生するため、コークス炉操業
上、好ましくない。In the above prior art, the non-repair brick at the top of the combustion chamber is placed on the lower cushion mortar at the moment when the brick hanger is removed, but the cushion mortar shrinks by up to about 70% when a load is applied. However, the non-repair bricks fall down by an amount corresponding to the shrinkage, and the non-repair bricks may cause joint breakage and a gap may be formed in the joint, and gas leaks from the gap at the time of operation, which is preferable in coke oven operation. Absent.
【０００６】また、煉瓦吊り具の撤去は、非補修煉瓦と
補修煉瓦との間隙を利用して行なうが、補修煉瓦が積み
上げられているため、燃焼室上部の非補修煉瓦と補修煉
瓦との間が狭くなっており、煉瓦吊り具の撤去作業に手
間がかかるという欠点がある。[0006] Also, the removal of the brick hanging tool is performed using the gap between the non-repair brick and the repair brick. However, since the repair brick is piled up, the space between the non-repair brick and the repair brick at the upper part of the combustion chamber is removed. However, there is a disadvantage that it takes time and effort to remove the brick hanging tool.
【０００７】本発明は、コークス炉燃焼室の補修におい
て、燃焼室上部の非補修煉瓦が脱落することのない非補
修煉瓦の懸垂方法及び非補修煉瓦から撤去しやすい懸垂
金物を提供するものである。SUMMARY OF THE INVENTION The present invention provides a method for suspending a non-repair brick in which a non-repair brick in the upper part of a combustion chamber does not fall off in repairing a coke oven combustion chamber, and a suspension metal which is easily removed from the non-repair brick. .
【０００８】[0008]
【課題を解決するための手段】本発明のコークス炉燃焼
室上部の非補修煉瓦の懸垂方法は、水平室炉式コークス
炉の燃焼室上部の非補修煉瓦をフリュー覗き穴から懸垂
金物を挿入して非補修煉瓦を懸垂し、燃焼室の下部に補
修煉瓦を積み上げて補修煉瓦と燃焼室上部の非補修煉瓦
との間の膨張代空間に木製の楔等の充填材を打込んだ後
に昇温し、燃焼室内の温度が４００°Ｃ以上になった時
点で懸垂金物を炉外へ撤去することを特徴とする。SUMMARY OF THE INVENTION According to the present invention, there is provided a method for suspending a non-repair brick above a combustion chamber of a coke oven by inserting a hanging metal through a hole of a flue through a non-repair brick above the combustion chamber of a horizontal chamber coke oven. The non-repair bricks are suspended, and the repair bricks are piled up at the bottom of the combustion chamber, and a filler such as a wooden wedge is injected into the expansion allowance space between the repair brick and the non-repair bricks at the top of the combustion chamber, and then the temperature is raised. Then, when the temperature in the combustion chamber becomes 400 ° C. or higher, the hanging metal is removed from the furnace.
【０００９】本発明の懸垂金物は、吊りロッドと吊りロ
ッドの先端に枢着された支持バーとから構成され、支持
バーはその重心から離れた位置で枢着されている。The hanging hardware of the present invention comprises a suspension rod and a support bar pivotally attached to the tip of the suspension rod, and the support bar is pivotally mounted at a position away from the center of gravity.
【００１０】[0010]
【発明の実施の形態】本発明の補修煉瓦積み完了後の昇
温期間中の非補修煉瓦の懸垂方法について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for suspending non-repair bricks during a temperature rise period after completion of repair brick loading according to the present invention will be described.
【００１１】図１は本発明による非補修煉瓦の懸垂状態
を示し、図１−（ａ）はフリュー覗き穴４から懸垂金物
５を挿入して懸垂金物５で燃焼室上部の非補修煉瓦１を
懸垂している状態を示す全体図、図１−（ｂ）はＡ−Ａ
矢視図で懸垂金物５を下方から見た状態を示す。FIG. 1 shows a suspended state of a non-repair brick according to the present invention. FIG. 1- (a) shows a state in which a hanging metal piece 5 is inserted from a flue peephole 4 and a non-repair brick 1 in an upper portion of a combustion chamber is suspended by the hanging metal piece 5. FIG. 1B is an overall view showing a suspended state, and FIG.
A state where the hanging hardware 5 is viewed from below is shown in an arrow view.
【００１２】補修煉瓦２の煉瓦積みが完了すると、ま
ず、フリュー覗き穴４から懸垂金物５を挿入して燃焼室
上部の非補修煉瓦１を懸垂する。When the brick-laying of the repair brick 2 is completed, first, the hanging hardware 5 is inserted through the flue observation hole 4 to suspend the non-repair brick 1 at the upper part of the combustion chamber.
【００１３】その後、補修煉瓦２と燃焼室上部の非補修
煉瓦１との間に補修煉瓦２の膨張代空間を設け、そこへ
木製の楔６を挿入する。木製の楔６は、昇温期間の初期
に図１に示す燃焼室上部の非補修煉瓦１のうち、煉瓦ｌ
ａ、ｌｂが下方へ脱落するのを防止するために挿入され
る。After that, a space for expansion of the repair brick 2 is provided between the repair brick 2 and the non-repair brick 1 in the upper part of the combustion chamber, and a wooden wedge 6 is inserted therein. At the beginning of the heating period, the wooden wedge 6 is a brick 1 of the non-repair bricks 1 in the upper part of the combustion chamber shown in FIG.
a, lb are inserted to prevent falling down.
【００１４】即ち、図１から判るように、懸垂金物５で
非補修煉瓦１を懸垂しても支持バー８からの荷重が煉瓦
ｌａ，ｌｂに伝わらず、煉瓦ｌａ，ｌｂは懸垂金物５で
懸垂できない。このため、昇温期間の初期は木製の楔６
がないと煉瓦ｌａ，ｌｂが下方へ脱落する可能性があ
る。That is, as can be seen from FIG. 1, even if the non-repair brick 1 is suspended by the hanging hardware 5, the load from the support bar 8 is not transmitted to the bricks la and lb, and the bricks la and lb are suspended by the hanging hardware 5. Can not. For this reason, a wooden wedge 6 is used at the beginning of the heating period.
Without them, the bricks la and lb may fall down.
【００１５】また、木製の楔６の挿入後、直ちに炉体の
昇温が行われるが、木製の楔６は昇温で燃焼室内温度が
２００〜３００°Ｃ以上になると燃えてしまう。しか
し、図２に示す様に補修煉瓦は２００〜３００°Ｃでは
膨張が５０％以上完了しており、煉瓦ｌａ，ｌｂが下方
へ脱落することはない。Further, the temperature of the furnace body is raised immediately after the wooden wedge 6 is inserted. However, the wooden wedge 6 burns when the temperature in the combustion chamber becomes 200 to 300 ° C. or higher due to the temperature rise. However, as shown in FIG. 2, the expansion of the repair brick at 200 to 300 ° C. is completed by 50% or more, and the bricks la and lb do not fall down.
【００１６】この様に楔６を木製にすると、昇温期間の
初期は燃焼室上部の非補修煉瓦ｌａ、ｌｂが下方へ脱落
するのを防止できるし、昇温期間の中期以降は楔が燃
え、補修煉瓦の膨張空間を維持できるという長所があ
る。When the wedge 6 is made of wood in this manner, the non-repair bricks la and lb in the upper part of the combustion chamber can be prevented from falling down at the beginning of the heating period, and the wedge burns after the middle of the heating period. In addition, there is an advantage that the expansion space of the repair brick can be maintained.
【００１７】なお、楔の材質を木製ではなく、例えばプ
ラスチック製とすることも考えられるが、プラスチック
製では楔が燃えると火力が強過ぎ、煉瓦がスポーリング
で損傷する可能性があり、好ましくない。It is conceivable that the material of the wedge is made of, for example, plastic instead of wood. However, if plastic is used, the burning power of the wedge is too strong, and the brick may be damaged by spalling, which is not preferable. .
【００１８】その後、さらに昇温していき、燃焼室温度
が４００°Ｃ以上になると懸垂金物５は撤去する。Thereafter, the temperature is further increased, and when the temperature of the combustion chamber becomes 400 ° C. or higher, the hanging hardware 5 is removed.
【００１９】図２は燃焼室内の温度と煉瓦膨張量との関
係を示すグラフで、燃焼室内の温度が４００°Ｃでは補
修煉瓦２の熱膨張量は約８０％完了しているので、炉温
４００°Ｃ以上では、懸垂金物を撤去しても特に目地切
れの問題は生じない。なお、昇温作業は、燃焼室温度が
約１０００°Ｃになると完了する。FIG. 2 is a graph showing the relationship between the temperature in the combustion chamber and the amount of brick expansion. When the temperature in the combustion chamber is 400 ° C., the amount of thermal expansion of the repair brick 2 is about 80% complete, so the furnace temperature At 400 ° C. or higher, there is no particular problem of joint breakage even if the hanging hardware is removed. The heating operation is completed when the temperature of the combustion chamber reaches about 1000 ° C.
【００２０】図３は本発明の懸垂金物の使用状態の説明
図で、懸垂金物５は、吊りロッド７と枢着金具１０とこ
の先端に枢着された支持バー８とから構成されている。
支持バー８には重心から離れた位置、例えば１０ｍｍ以
上離れた位置に取付ボルト穴があり、ボルト穴にボルト
９を通して支持バー８が回転可能に枢着される。このた
め、吊りロッド７を下方に下げると、支持バー８は取付
ボルト９に対して重い側が下方へ、軽い側が上方へ向き
支持バー８が鉛直状態となる。吊りロツド７の他端は、
コークス炉の上部に設けたビーム１１（図１参照）に懸
垂できる構造とする。FIG. 3 is an explanatory view of the use of the hanging hardware of the present invention. The hanging hardware 5 is composed of a suspension rod 7, a pivot fitting 10, and a support bar 8 pivotally attached to the tip of the hanging rod 7.
The support bar 8 has a mounting bolt hole at a position distant from the center of gravity, for example, at a distance of 10 mm or more. The support bar 8 is rotatably pivoted through a bolt 9 in the bolt hole. For this reason, when the suspension rod 7 is lowered, the support bar 8 is turned vertically downward on the heavy side and upward on the light side with respect to the mounting bolt 9, and the support bar 8 is in a vertical state. The other end of the suspension rod 7
The structure is such that it can be suspended from the beam 11 (see FIG. 1) provided at the upper part of the coke oven.
【００２１】本発明の懸垂金物の使用方法について説明
する。The method of using the hanging hardware of the present invention will be described.
【００２２】懸垂金物５による燃焼室上部の非補修煉瓦
１の懸垂は、吊りロツド７を垂直にし支持バー８を鉛直
状態にして懸垂金物５をフリュー覗き穴４から炉内に挿
入して、支持バー８を非補修煉瓦１のフリュー覗き穴４
の下端に位置させ、支持バー８が非補修煉瓦１の下面を
懸垂できるように支持バー８を現状の鉛直状態から水平
状態にして、吊りロツド７を引き上げ、コークス炉の上
部に設けたビーム１１に懸垂することで非補修煉瓦１を
懸垂する。The hanging of the non-repair bricks 1 in the upper part of the combustion chamber by the hanging hardware 5 is performed by inserting the hanging hardware 5 into the furnace through the flue viewing hole 4 with the hanging rod 7 vertical and the support bar 8 in the vertical state. Bar 8 is not repaired brick 1 Flue peep hole 4
The support bar 8 is changed from the current vertical state to the horizontal state so that the support bar 8 can be suspended from the lower surface of the non-repair brick 1, the suspension rod 7 is pulled up, and the beam 11 provided at the upper part of the coke oven is set. To hang the non-repair brick 1.
【００２３】懸垂金物５の撤去は、吊りロツド７を燃焼
室の下方へ押し込んで燃焼室上部の非補修煉瓦１の下面
から離して支持バー８を鉛直状態にして、そのまま吊り
ロッド７をフリュー覗き穴４から引き上げることにより
行なう。To remove the hanging hardware 5, the suspension rod 7 is pushed downward of the combustion chamber to separate it from the lower surface of the non-repair brick 1 at the upper part of the combustion chamber, and the support bar 8 is set in a vertical state. This is performed by pulling up from the hole 4.
【００２４】このため、補修煉瓦の昇温期間中に懸垂金
物が非補修煉瓦から取り外し可能となる。なお、ここで
は懸垂金物は補修煉瓦の昇温期間中のみに装着するよう
に説明したが、もちろん煉瓦の解体期間及び築炉期間に
懸垂金物を装着してもよい。Therefore, the hanging metal can be removed from the non-repair brick during the period for raising the temperature of the repair brick. Here, the hanging hardware has been described as being mounted only during the period for raising the temperature of the repair brick. However, the hanging hardware may of course be mounted during the period of dismantling the brick and the period of building the furnace.
【００２５】[0025]
【発明の効果】補修煉瓦積み完了後の昇温期間に懸垂金
物で燃焼室上部の非補修煉瓦を懸垂支持することがで
き、かつ補修煉瓦積みの熱膨張量がほぼ完了した後に懸
垂金物を撤去するので、懸垂金物を撤去しても非補修煉
瓦の下方への脱落がなく、目地切れも発生しない。この
ため、非補修煉瓦の劣化及び操業時のガス漏れがなくな
り、環境上も熱効率上もあるいは炉の寿命面からも好ま
しい結果が得られる。According to the present invention, the non-repair brick at the upper part of the combustion chamber can be suspended and supported by the hanging metal during the heating period after the completion of the repair brick, and the hanging metal is removed after the thermal expansion of the repair brick is substantially completed. Therefore, even if the hanging hardware is removed, the non-repair brick does not fall down and no joint break occurs. For this reason, deterioration of the non-repair bricks and gas leakage during operation are eliminated, and favorable results can be obtained in terms of environment, thermal efficiency, and life of the furnace.
【図１】図１は本発明による非補修煉瓦の支持状態を示
し、図１−（ａ）は全体図、図１−（ｂ）はＡ−Ａ矢視
図である。FIG. 1 shows a support state of a non-repair brick according to the present invention. FIG. 1- (a) is an overall view, and FIG. 1- (b) is a view taken along the line AA.
【図２】燃焼室内の温度と煉瓦膨張量との関係を示すグ
ラフである。FIG. 2 is a graph showing a relationship between a temperature in a combustion chamber and a brick expansion amount.
【図３】本発明の懸垂金物の使用状態の説明図である。FIG. 3 is an explanatory view of a use state of the hanging hardware of the present invention.
【図４】従来技術の非補修煉瓦の昇温期間中の懸垂状態
を示す概略図である。FIG. 4 is a schematic diagram showing a suspended state of a non-repair brick of the prior art during a temperature rising period.
１ 非補修煉瓦 ２ 補修煉瓦（補修煉瓦積み） ３ クッションモルタル ４ フリュー覗き穴 ５ 懸垂金物 ６ 木製の楔 ７ 吊りロッド ８ 支持バー ９ ボルト １０ 枢着金具 １１ ビーム DESCRIPTION OF SYMBOLS 1 Non-repair brick 2 Repair brick (repair brickwork) 3 Cushion mortar 4 Flue peephole 5 Hanging hardware 6 Wooden wedge 7 Suspension rod 8 Support bar 9 Bolt 10 Pivot fitting 11 Beam
Claims (4)
替え作業に際し、燃焼室上部の非補修煉瓦をフリュー覗
き穴から懸垂金物を挿入して懸垂し、燃焼室の下部に補
修煉瓦を積み上げて補修煉瓦と燃焼室上部の非補修煉瓦
との間の膨張代空間に充填材を充填した後に昇温し、燃
焼室内の温度が４００°Ｃ以上になった時点で懸垂金物
を炉外へ撤去することを特徴とするコークス炉燃焼室上
部の非補修煉瓦の懸垂方法。Claims: 1. In a reloading operation of a combustion chamber brick of a horizontal chamber coke oven, a non-repair brick at the upper part of the combustion chamber is suspended by inserting a hanging hardware through a flue peephole, and the repair brick is piled up at a lower part of the combustion chamber. After filling the expansion allowance between the repair brick and the non-repair brick in the upper part of the combustion chamber with the filler, the temperature rises, and when the temperature in the combustion chamber reaches 400 ° C or more, the suspended hardware is removed from the furnace. A method of suspending a non-repair brick in an upper part of a coke oven combustion chamber.
る請求項１記載のコークス炉燃焼室上部の非補修煉瓦の
懸垂方法。2. The method for suspending a non-repair brick in an upper part of a coke oven combustion chamber according to claim 1, wherein the filler is a wooden wedge.
された支持バーとから構成され、支持バーはその重心か
ら離れた位置で回転自在に枢着されていることを特徴と
するコークス炉燃焼室上部の非補修煉瓦の懸垂金物。3. A coke oven comprising a suspension rod and a support bar pivotally attached to a tip of the suspension rod, wherein the support bar is rotatably pivotally mounted at a position away from the center of gravity. Hanging hardware of non-repair bricks at the top of the combustion chamber.
修煉瓦から取り外し自在であることを特徴とする請求項
３記載のコークス炉燃焼室上部の非補修煉瓦の懸垂金
物。4. The hanging metal of the non-repair brick in the upper part of the combustion chamber of the coke oven according to claim 3, wherein the hanging metal is detachable from the non-repair brick during the period of raising the temperature of the repair brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6366397A JPH10251649A (en) | 1997-03-17 | 1997-03-17 | Method for hanging nonrepaired brick of upper part of combustion chamber of coke oven and hanging metal fitting therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6366397A JPH10251649A (en) | 1997-03-17 | 1997-03-17 | Method for hanging nonrepaired brick of upper part of combustion chamber of coke oven and hanging metal fitting therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10251649A true JPH10251649A (en) | 1998-09-22 |
Family
ID=13235817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6366397A Pending JPH10251649A (en) | 1997-03-17 | 1997-03-17 | Method for hanging nonrepaired brick of upper part of combustion chamber of coke oven and hanging metal fitting therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10251649A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002189A (en) * | 2005-06-27 | 2007-01-11 | Jfe Refractories Corp | Method and apparatus for supporting ceiling brick of combustion chamber in coke oven |
| JP2010222414A (en) * | 2009-03-19 | 2010-10-07 | Jfe Steel Corp | Method for hot repair of coke oven |
| JP2014091764A (en) * | 2012-11-01 | 2014-05-19 | Jfe Steel Corp | Method for repairing coke oven by partial replacement |
| JP2021080488A (en) * | 2019-11-14 | 2021-05-27 | 日本製鉄株式会社 | Hot blast stove dismantling method and jig |
-
1997
- 1997-03-17 JP JP6366397A patent/JPH10251649A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002189A (en) * | 2005-06-27 | 2007-01-11 | Jfe Refractories Corp | Method and apparatus for supporting ceiling brick of combustion chamber in coke oven |
| JP2010222414A (en) * | 2009-03-19 | 2010-10-07 | Jfe Steel Corp | Method for hot repair of coke oven |
| JP2014091764A (en) * | 2012-11-01 | 2014-05-19 | Jfe Steel Corp | Method for repairing coke oven by partial replacement |
| JP2021080488A (en) * | 2019-11-14 | 2021-05-27 | 日本製鉄株式会社 | Hot blast stove dismantling method and jig |
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