JP5321187B2 - Heat insulation box for hot repair of coke oven carbonization chamber and hot repair method for carbonization chamber - Google Patents
Heat insulation box for hot repair of coke oven carbonization chamber and hot repair method for carbonization chamber Download PDFInfo
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本発明は、コークス炉炭化室の損傷煉瓦を積み替えて補修する際に使用する断熱ボックスと、該断熱ボックスを使用して、該損傷煉瓦を積み替える補修方法に関するものある。 The present invention relates to a heat insulation box used when a damaged brick in a coke oven carbonization chamber is reloaded and repaired, and a repair method for reloading the damaged brick using the heat insulating box.
コークス炉を長期間使用すると、石炭を乾留する炭化室の炉壁煉瓦に、表面剥離、亀裂等の損傷が現れる。損傷の程度が小さい場合は、耐火物を吹付ける溶射補修を行うが、損傷程度が激しくなると、溶射補修では補修効果が小さいので、炉壁煉瓦を積み替える必要がある。 When a coke oven is used for a long period of time, damage such as surface peeling and cracking appears in the furnace wall bricks of the carbonization chamber where coal is carbonized. When the degree of damage is small, thermal spray repair is performed by spraying a refractory. However, when the degree of damage becomes severe, the thermal spray repair has a small repair effect, and it is necessary to reload the furnace wall bricks.
コークス炉は、常に、１１００℃付近の高温状態にあるので、作業時に、作業員が、そのまま、炭化室に入って作業することはできない。それ故、従来から、炭化室の炉壁煉瓦からの輻射熱を抑制するため、断熱材を配置した断熱ボックスを炭化室に挿入し、作業員が、断熱ボックスの中で、煉瓦の積替作業を行うことが行われていて、そのための断熱ボックスが、種々提案されている（例えば、特許文献１〜８、参照）。
Since the coke oven is always in a high temperature state around 1100 ° C., an operator cannot enter and work in the carbonization chamber as it is. Therefore, conventionally, in order to suppress the radiant heat from the furnace wall bricks in the carbonization chamber, a heat insulation box with a heat insulating material is inserted into the carbonization chamber, and the worker performs the transshipment work of bricks in the heat insulation box. Various things have been proposed, and various heat insulating boxes have been proposed (for example, see
しかし、従来の断熱ボックスは、炉壁煉瓦の積替えを目的とするものであり、炉底煉瓦の積替えを目的とするものではない。 However, the conventional heat insulation box is intended for transshipment of furnace wall bricks, not for transshipment of furnace bottom bricks.
例えば、特許文献８には、コークス炉炭化室内への装入、引出が可能なループ状足場メインフレームと、その足場メインフレームの前端部に取付けられた短冊状防熱板、及び、その後端部に取付けられた梯子状の後部フレームとからなり、かつ、前記足場メインフレームには、その長手方向に沿って配設される短冊状の床板を、高さ方向に、複数段、回転可能に軸支したことを特徴とするコークス炉炭化室内の炉壁れんが積替え・補修装置が開示されているが、該積替え・補修装置は、炉壁煉瓦の積替えを目的とするものであり、炉底煉瓦の積替えを目的とするものではない。 For example, Patent Document 8 discloses a loop-shaped scaffold main frame that can be inserted into and drawn into a coke oven carbonization chamber, a strip-shaped heat insulating plate attached to the front end of the scaffold main frame, and a rear end thereof. A ladder-like rear frame attached thereto, and the scaffold main frame is provided with a strip-like floor plate disposed along the longitudinal direction thereof, which is rotatably supported in a plurality of stages in the height direction. Although a furnace wall brick transshipment / repair device in a coke oven carbonization chamber is disclosed, the transshipment / repair device is intended for transshipment of furnace wall bricks, and transshipment of furnace bottom bricks It is not intended.
また、上記積替え・補修装置を含め、従来の断熱ボックスは、炉底煉瓦の上に載置したままで使用するものであるので、損傷した炉底煉瓦を積み替えることは、構造的に不可能である。 In addition, the conventional heat insulation box including the above transshipment / repair device is used while placed on the bottom brick, so it is structurally impossible to reload the damaged bottom brick. It is.
従来、コークス炉炭化室の炉底の補修は、損傷箇所に焼結材を散布して行っていたが、焼結材の散布で、炉長（１４〜１６ｍｍ）にわたり、炉底を平滑にすることは難しく、また、平滑にできたとしても、補修寿命は、約１年と短期間である。 Conventionally, repair of the furnace bottom of the coke oven carbonization chamber has been performed by spraying the sintered material on the damaged part, but the furnace bottom is smoothed over the furnace length (14 to 16 mm) by spraying the sintered material. This is difficult, and even if it can be made smooth, the repair life is as short as about one year.
コークス炉炭化室の炉底煉瓦が、長期間の使用で剥離すると、炉底煉瓦表面の平滑度が低下し、コークス押出時の抵抗が増大し、押出機のトルクが増大する。この抵抗の増大は、コークスの押し詰まりや、側圧上昇による炉壁の破壊などに代表される操業トラブルの原因となる。 When the bottom brick of the coke oven carbonization chamber is peeled off after long-term use, the smoothness of the bottom brick surface is lowered, the resistance at the time of coke extrusion is increased, and the torque of the extruder is increased. This increase in resistance causes operational troubles such as coke clogging and destruction of the furnace wall due to increased side pressure.
コークス炉炭化室の炉底における損傷煉瓦を積み替えることは、コークス炉操業の効率を高めることに直結するだけでなく、コークス炉の長期安定稼動に貢献するので、該損傷煉瓦を、容易に積み替えることができる手段又は手法の開発が求められている。 Reloading damaged bricks at the bottom of the coke oven carbonization chamber not only directly increases the efficiency of coke oven operation, but also contributes to the long-term stable operation of the coke oven. There is a need to develop means or methods that can be used.
本発明は、コークス炉炭化室の炉底における損傷煉瓦（以下「炉底損傷煉瓦」ということがある）をも、容易に積み替えることができる断熱ボックスと、該断熱ボックスを用いて、炉底損傷煉瓦を補修する補修方法を提供することを課題とする。 The present invention relates to a heat insulating box in which a damaged brick (hereinafter sometimes referred to as “furnace bottom damaged brick”) in a coke oven carbonization chamber can be easily transshipped, and the heat insulating box. It is an object to provide a repair method for repairing damaged bricks.
本発明者らは、炉底損傷煉瓦を積み替えるためには、（ｉ）炉壁補修時には、炉底に接し、断熱ボックスを支えるが、（ii）炉底補修時には、補修作業を妨げない下部構造とする必要があるとの発想の下に、該下部構造ついて鋭意検討した。その結果、本発明者らは、断熱ボックスの底部に、引き上げ可能な、複数の脚部材を配置する下部構造を見いだした。 In order to reload the bottom damaged brick, the present inventors (i) touch the bottom of the furnace wall during the repair of the furnace wall and support the heat insulation box, but (ii) the bottom that does not interfere with the repair work during the bottom repair. Under the idea that there is a need for a structure, the substructure was studied earnestly. As a result, the present inventors have found a lower structure in which a plurality of leg members that can be pulled up are arranged at the bottom of the heat insulation box.
本発明は、上記知見に基づいてなされたもので、その要旨は以下のとおりである。 This invention was made | formed based on the said knowledge, and the summary is as follows.
（１）コークス炉炭化室に挿入して使用する、偏平枠組構造体の熱間補修用断熱ボックスにおいて、
偏平枠組構造体の最下部を構成する挿入方向の２本の横枠材に、引き上げて格納できる脚部材を、複数個、両横枠材間で対をなすように組み込んだ
ことを特徴とするコークス炉炭化室の熱間補修用断熱ボックス。
(1) In a heat insulation box for hot repair of a flat frame structure to be used by being inserted into a coke oven carbonization chamber,
A plurality of leg members that can be pulled up and stored in two horizontal frame members in the insertion direction that constitute the lowermost part of the flat frame structure are incorporated in a pair between the horizontal frame members. Heat insulation box for hot repair of coke oven carbonization chamber.
（２）前記脚部材が、凹状又はＵ字状の構造部材からなることを特徴とする前記（１）に記載のコークス炉炭化室の熱間補修用断熱ボックス。 (2) The heat-insulating box for hot repair of a coke oven carbonization chamber according to (1), wherein the leg member is a concave or U-shaped structural member.
（３）前記脚部材が、ねじ機構で、横枠材に固定されることを特徴とする前記（１）又は（２）に記載のコークス炉炭化室の熱間補修用断熱ボックス。 (3) The heat repair heat insulation box for a coke oven carbonization chamber according to (1) or (2), wherein the leg member is fixed to a horizontal frame member by a screw mechanism.
（４）前記脚部材が、スライド機構で上下動することを特徴とする前記（１）又は（２）に記載のコークス炉炭化室の熱間補修用断熱ボックス。 (4) The heat-insulating box for hot repair of a coke oven carbonization chamber according to (1) or (2), wherein the leg member moves up and down by a slide mechanism.
（５）前記横枠材が、取り外し可能な床板を保持していることを特徴とする前記（１）〜（４）のいずれかに記載のコークス炉炭化室の熱間補修用断熱ボックス。 (5) The heat insulation heat box for coke oven carbonization chamber according to any one of (1) to (4), wherein the horizontal frame member holds a removable floor board.
（６）前記（１）〜（５）のいずれかに記載のコークス炉炭化室の熱間補修用断熱ボックスを用いて、コークス炉炭化室を補修する熱間補修方法において、
（ｉ）上記断熱ボックスを、コークス炉炭化室に挿入し、
（ii）上記断熱ボックスの偏平枠組構造の最下部を構成する挿入方向の２本の横枠材に組み込んだ脚部材のうち、上記炭化室の炉底における補修対象部位に位置する１対の脚部材を、引き上げて格納し、該補修対象部位を補修する、
ことを特徴とするコークス炉炭化室の熱間補修方法。
(6) In the hot repair method of repairing the coke oven carbonization chamber using the heat insulation heat box for the coke oven carbonization chamber according to any one of (1) to (5) above,
(I) Insert the heat insulation box into the coke oven carbonization chamber,
(Ii) A pair of legs located at a repair target site in the furnace bottom of the carbonization chamber among the leg members incorporated in the two horizontal frame members in the insertion direction constituting the lowermost part of the flat frame structure of the heat insulation box The member is pulled up and stored, and the repair target part is repaired.
A hot repair method for a coke oven carbonization chamber.
（７）前記（１）〜（５）のいずれかに記載のコークス炉炭化室の熱間補修用断熱ボックスを用いて、コークス炉炭化室を補修する熱間補修方法において、
（ｉ）上記断熱ボックスを、コークス炉炭化室に挿入し、
（ii-1）上記断熱ボックスの偏平枠組構造の最下部を構成する挿入方向の２本の横枠材に組み込んだ脚部材のうち、上記炭化室の炉底の補修対象部位に位置する脚部材を、上方に引き上げて格納し、該補修対象部位を補修し、
（ii-2）補修後、格納した脚部材を降ろして炉底に接地させ、他の補修対象部位に位置する脚部材を上方に引き上げて格納し、他の補修対象部位を補修する、
ことを特徴とするコークス炉炭化室の熱間補修方法。
(7) In the hot repair method of repairing the coke oven carbonization chamber using the heat insulation heat box for the coke oven carbonization chamber according to any one of (1) to (5),
(I) Insert the heat insulation box into the coke oven carbonization chamber,
(Ii-1) Of the leg members incorporated in the two horizontal frame members in the insertion direction constituting the lowermost part of the flat frame structure of the heat insulation box, the leg member located at the repair target portion of the furnace bottom of the carbonization chamber Is pulled upwards and stored, repairing the repair target part,
(Ii-2) After repairing, the stored leg member is lowered and brought into contact with the furnace bottom, the leg member located at the other repair target part is pulled up and stored, and the other repair target part is repaired.
A hot repair method for a coke oven carbonization chamber.
（８）前記（ii-1）及び（ii-2）の補修を繰り返すことを特徴とする前記（７）に記載のコークス炉炭化室の熱間補修方法。 (8) The hot repair method for a coke oven carbonization chamber according to (7), wherein the repairs of (ii-1) and (ii-2) are repeated.
（９）前記補修対象部位において、炉底煉瓦を積み替えて補修することを特徴とする前記（６）〜（８）のいずれかに記載のコークス炉炭化室の熱間補修方法。
(9) The hot repair method for a coke oven carbonization chamber according to any one of the above ( 6 ) to (8), wherein the repair is performed by reloading the bottom brick in the repair target part.
本発明によれば、現在、主流の室炉式コークス炉の補修において、炉壁損傷煉瓦だけでなく、炉底損傷煉瓦をも、容易に積み替えることができるので、炭化室の炉底を、長期間、平滑に維持して、コークス押出時の抵抗の上昇をなくし、コークス炉の操業効率を顕著に高めることができる。 According to the present invention, in the repair of the mainstream chamber furnace type coke oven, not only the furnace wall damaged bricks but also the furnace bottom damaged bricks can be easily reloaded. Maintaining smoothness for a long period of time can eliminate an increase in resistance during coke extrusion, and can significantly increase the operating efficiency of the coke oven.
本発明について、図面に基づいて説明する。 The present invention will be described with reference to the drawings.
図１に、本発明の断熱ボックスの一態様を示す。断熱ボックスは、縦枠材１ａと横枠材１ｂを組んだ偏平外枠組を、補強縦枠材２ａ及び補強横枠材２ｂで補強して構成した偏平枠組構造体１に、断熱布又は断熱ボード６を取り付けて構成されている。
In FIG. 1, the one aspect | mode of the heat insulation box of this invention is shown. The heat insulation box has a
断熱ボックスは、幅４０ｃｍ程度のコークス炉炭化室（以下、単に「炭化室」ということがある。）に、図１中、矢印方向に挿入して使用するので、偏平枠組構造体の幅は、横枠材の間に、適宜配置したターンバックル３で、３０ｃｍ程度に維持されており、コークス炉挿入後、炉巾に合わせてターンバックルにて巾を広げて使用する。 The heat insulation box is inserted into a coke oven carbonization chamber having a width of about 40 cm (hereinafter sometimes simply referred to as “carbonization chamber”) in the direction of the arrow in FIG. 1, so the width of the flat frame structure is The turnbuckle 3 is appropriately placed between the horizontal frame members, and is maintained at about 30 cm. After the coke oven is inserted, the turnbuckle is used by expanding the width with the turnbuckle.
幅３０ｃｍ程度の偏平枠組構造体の中が、補修作業を行う作業空間となるので、使用する枠材の太さは制限される。通常、１０ＡのＳＵＳ３０４を主に使用する。なお、補強横枠材は、補修時、足場となるので、ある程度の強度を必要とし、このため、２５Ａ ＳＵＳ３０４を主に使用する。また、補強縦枠材及び補強横枠材の一部には、作業空間の温度を下げるため、鋼管（３４Ａ ＳＵＳ３０４）を使用して通水する。 Since the inside of the flat frame structure having a width of about 30 cm is a work space for repair work, the thickness of the frame material to be used is limited. Usually, 10A SUS304 is mainly used. In addition, since a reinforcement horizontal frame material becomes a scaffold at the time of repair, a certain amount of intensity | strength is required and for this reason, 25A SUS304 is mainly used. Moreover, in order to lower the temperature of the working space, water is passed through a part of the reinforcing vertical frame member and the reinforcing horizontal frame member using a steel pipe (34A SUS304).
偏平枠組構造体の最下部を構成する挿入方向の２本の横枠材１ｂの間には、床板７が、取り外し可能に敷設されている。偏平枠組構造体の最下部を構成する挿入方向の２本の横枠材１ｂの端部の底部には、炭化室内に、断熱ボックスを支えながら円滑に挿入するための脚４が取り付けられている。
A
そして、偏平枠組構造体の最下部を構成する挿入方向の２本の横枠材１ｂには、両端の脚４の間において、引き上げて格納できる脚部材５が、複数個（図１では、片側４個）、両横枠材１ｂ間で対をなすように組み込まれている。この点が、本発明の特徴である。
The two horizontal frame members 1b in the insertion direction constituting the lowermost part of the flat frame structure have a plurality of
引き上げて格納できる脚部材５は、炉底の補修時、炉底の補修対象部位に位置する両側１対の脚部材５が、引き上げられ、横枠材１ｂに固定されて格納される。その結果、炉底の補修対象部位の周りに、補修作業を行うことができる作業空間が形成されることになる。なお、脚部材５の引上げ・格納機構については、図２で説明する。
The
一部の脚部材が引き上げられ横枠材に格納されている場合、残りの脚部材で、断熱ボックス（通常、約１ｔの重量物）と作業者の荷重を支えることになるので、残りの脚部材が、炉底煉瓦を破壊しない荷重設計（例えば、２ｋｇ／ｃｍ2）をしなければならない。それ故、脚部材の個数、長さは、荷重設計の点から、ある程度制約される。 When some leg members are lifted and stored in the horizontal frame member, the remaining leg members support the heat insulation box (usually a heavy object of about 1 ton) and the load of the operator, so the remaining legs The member must have a load design (eg 2 kg / cm 2 ) that does not destroy the bottom brick. Therefore, the number and length of the leg members are limited to some extent from the viewpoint of load design.
脚部材５は、断熱ボックスを支えながら円滑に炭化室に挿入する機能も備える必要があるので、通常、脚４と同様に、凹状又はＵ字状の構造部材で構成するのが好ましい。
Since the
図２に、コークス炉の窯口から中央部の煉瓦を積み替える時に使用する、別の断熱ボックスの態様を示す。偏平枠組構造体１は、縦枠材１ａと横枠材１ｂを組んだ偏平外枠組に、補強縦枠材２ａ及び補強横枠材２ｂを組み込んで構成されている。なお、断熱布又は断熱ボード６は、図示されていない。
FIG. 2 shows another embodiment of the heat insulation box used when transposing the central brick from the coke oven. The
偏平枠組構造体１の最下部を構成する挿入方向の２本の横枠材１ｂの端部の底部には、脚４が取り付けられている。そして、偏平枠組構造体１の最下部を構成する挿入方向の２本の横枠材１ｂには、両端の脚４の間に、引き上げて格納できる脚部材５が、複数個、両横枠材１ｂ間で対をなすように組み込まれている。なお、図２は、脚部材５を、横枠材１ｂから外した状態を示す。
横枠材１ｂには、脚部材５を固定するための脚部材固定用金具８が取り付けられている。脚部材５は、Ｕ字型をしていて、垂直部に、上ねじ穴９ａと下ねじ穴９ｂが設けられている。断熱ボックスを挿入する時は、脚部材５を、上ねじ穴９ａに挿入したねじで、脚部材固定用金具８に固定する。この固定位置の場合、脚部材５は、断熱ボックスを支えながら円滑に炭化室に挿入する機能と、挿入後、炉壁補修時、断熱ボックスの荷重を支える機能を果たすことになる。
A leg member fixing bracket 8 for fixing the
炭化室の炉底における補修対象部位を補修するとき、補修対象部位に位置する１対の脚部材５の固定を解除して引き上げ、下ねじ穴９ｂにねじを挿入して、脚部材固定用金具８に固定する。このとき、横枠材１ｂが、床板を保持している場合は、床板を取り外す。
When repairing the repair target part in the furnace bottom of the carbonization chamber, the pair of
この操作で、炭化室の炉底における補修対象部位を補修することができる作業空間を確保することができ、耐火材の溶射は勿論のこと、炉底損傷煉瓦の積み替えを容易に行うことができる。 With this operation, it is possible to secure a work space capable of repairing the repair target part in the furnace bottom of the carbonization chamber, and it is possible not only to spray the refractory material but also to easily reload the damaged brick at the furnace bottom. .
炉底損傷煉瓦を積み替えた後は、脚部材５を降ろして、再度、上ねじ穴９ａの位置で固定する。さらに、別の補修対象部位において、同じ手順で、補修作業を実施する。このように、炉底損傷煉瓦の補修を繰り返すことにより、炉底損傷煉瓦を取り替えることができる。
After reloading the furnace bottom damaged brick, the
従来、炉底において、煉瓦の積み替えが必要な損傷箇所が見つかっても、焼結材を散布する程度の補修しかできず、炉底の平滑度が短期間で損なわれて、コークス押出時の抵抗値が上昇したが、本発明の断熱ボックスを用いることにより、炉底損傷煉瓦の積み替えを行うことができるので、炉底の平滑度を長期にわたり維持することができ、コークス押出時の抵抗値が上昇しない。 Conventionally, even if a damaged part that needs to be replaced with bricks is found in the furnace bottom, it can only be repaired to the extent that the sintered material is sprayed, and the smoothness of the furnace bottom is impaired in a short period of time, resulting in resistance during coke extrusion. Although the value increased, by using the heat insulation box of the present invention, it is possible to transship the damaged brick at the bottom of the furnace, so that the smoothness of the bottom of the furnace can be maintained for a long time, and the resistance value at the time of coke extrusion is reduced. Does not rise.
なお、図２には、作業者が、脚部材を、ねじ機構で固定する態様を示したが、横枠材又は縦枠材にスライド機構を取り付けて、脚部材を機械的に上下動させてもよい。また、脚部材を固定する手段として、ねじ機構に替えて、ラチェット機構を用いてもよい。 FIG. 2 shows a mode in which the worker fixes the leg member with a screw mechanism. However, the slide mechanism is attached to the horizontal frame member or the vertical frame member, and the leg member is mechanically moved up and down. Also good. Further, as a means for fixing the leg member, a ratchet mechanism may be used instead of the screw mechanism.
次に、本発明の実施例について説明するが、実施例の条件は、本発明の実施可能性及び効果を確認するために採用した一条件例であり、本発明は、この一条件例に限定されるものではない。本発明は、本発明の要旨を逸脱せず、本発明の目的を達成する限りにおいて、種々の条件を採用し得るものである。 Next, examples of the present invention will be described. The conditions of the examples are one example of conditions adopted for confirming the feasibility and effects of the present invention, and the present invention is limited to this one example of conditions. Is not to be done. The present invention can adopt various conditions as long as the object of the present invention is achieved without departing from the gist of the present invention.
（実施例）
本発明の断熱ボックスと従来方法を用いて、コークス炉炭化室の炉底の補修を行った。表１に、実施状況と実施後のコークス押出電流値を示す。押出電流値の大きいほうが、押出し負荷が高いことを意味する。
(Example)
The furnace bottom of the coke oven carbonization chamber was repaired using the heat insulation box of the present invention and the conventional method. Table 1 shows the implementation status and the coke extrusion current value after implementation. A larger extrusion current value means a higher extrusion load.
本発明装置を用いて、炉底を補修した場合、従来方法に比べ、１年後のコークス押出電流値は、殆ど上昇していないことが解る。したがって、本発明装置を用いてコークス炉炭化室の炉底を補修することにより、炉底の平滑度を長期間にわたり確保することができ、炉操業効率を顕著に高めることができる。
It can be seen that when the furnace bottom is repaired using the apparatus of the present invention, the coke extrusion current value after one year has hardly increased compared to the conventional method. Therefore, by repairing the furnace bottom of the coke oven carbonization chamber using the apparatus of the present invention, the smoothness of the furnace bottom can be ensured over a long period of time, and the furnace operation efficiency can be significantly increased.
前述したように、本発明によれば、現在、主流の室炉式コークス炉の炉底損傷煉瓦を、容易に積み替えることができるので、炭化室の炉底を、長期間、平滑に維持し、コークス押出時の抵抗の異常な上昇をなくして、炉操業効率を顕著に高めることができる。よって本発明は、コークス製造産業において利用可能性が高いものである。 As described above, according to the present invention, the bottom damaged brick of the mainstream chamber type coke oven can be easily transshipped, so that the bottom of the carbonization chamber can be kept smooth for a long time. It is possible to remarkably increase the furnace operation efficiency by eliminating an abnormal increase in resistance during coke extrusion. Therefore, the present invention has high applicability in the coke manufacturing industry.
１ 偏平枠組構造体
１ａ 縦枠材
１ｂ 横枠材
２ａ 補強縦枠材
２ｂ 補強横枠材
３ ターンバックル
４ 脚
５ 脚部材
６ 断熱布又は断熱ボード
７ 床板
８ 脚枠材固定用金具
９ａ 上ねじ穴
９ｂ 下ねじ穴
DESCRIPTION OF
Claims (9)
偏平枠組構造体の最下部を構成する挿入方向の２本の横枠材に、引き上げて格納できる脚部材を、複数個、両横枠材間で対をなすように組み込んだ
ことを特徴とするコークス炉炭化室の熱間補修用断熱ボックス。 In a heat insulation box for hot repair of a flat-framed structure that is inserted into a coke oven carbonization chamber,
A plurality of leg members that can be pulled up and stored in two horizontal frame members in the insertion direction that constitute the lowermost part of the flat frame structure are incorporated in a pair between the horizontal frame members. Heat insulation box for hot repair of coke oven carbonization chamber.
（ｉ）上記断熱ボックスを、コークス炉炭化室に挿入し、
（ii）上記断熱ボックスの偏平枠組構造の最下部を構成する挿入方向の２本の横枠材に組み込んだ脚部材のうち、上記炭化室の炉底における補修対象部位に位置する１対の脚部材を、引き上げて格納し、該補修対象部位を補修する、
ことを特徴とするコークス炉炭化室の熱間補修方法。 In the hot repair method of repairing a coke oven carbonization chamber using the heat insulation box for hot repair of the coke oven carbonization chamber according to any one of claims 1 to 5,
(I) Insert the heat insulation box into the coke oven carbonization chamber,
(Ii) A pair of legs located at a repair target site in the furnace bottom of the carbonization chamber among the leg members incorporated in the two horizontal frame members in the insertion direction constituting the lowermost part of the flat frame structure of the heat insulation box The member is pulled up and stored, and the repair target part is repaired.
A hot repair method for a coke oven carbonization chamber.
（ｉ）上記断熱ボックスを、コークス炉炭化室に挿入し、
（ii-1）上記断熱ボックスの偏平枠組構造の最下部を構成する挿入方向の２本の横枠材に組み込んだ脚部材のうち、上記炭化室の炉底の補修対象部位に位置する脚部材を、上方に引き上げて格納し、該補修対象部位を補修し、
（ii-2）補修後、格納した脚部材を降ろして炉底に接地させ、他の補修対象部位に位置する脚部材を上方に引き上げて格納し、他の補修対象部位を補修する、
ことを特徴とするコークス炉炭化室の熱間補修方法。 In the hot repair method of repairing a coke oven carbonization chamber using the heat insulation box for hot repair of the coke oven carbonization chamber according to any one of claims 1 to 5,
(I) Insert the heat insulation box into the coke oven carbonization chamber,
(Ii-1) Of the leg members incorporated in the two horizontal frame members in the insertion direction constituting the lowermost part of the flat frame structure of the heat insulation box, the leg member located at the repair target portion of the furnace bottom of the carbonization chamber Is pulled upwards and stored, repairing the repair target part,
(Ii-2) After repairing, the stored leg member is lowered and brought into contact with the furnace bottom, the leg member located at the other repair target part is pulled up and stored, and the other repair target part is repaired.
A hot repair method for a coke oven carbonization chamber.
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