JP3144991B2 - Method for removing upper formwork for building refractory for furnace of mixed iron car body and removing formwork with upper formwork used for the method - Google Patents
Method for removing upper formwork for building refractory for furnace of mixed iron car body and removing formwork with upper formwork used for the methodInfo
- Publication number
- JP3144991B2 JP3144991B2 JP18887594A JP18887594A JP3144991B2 JP 3144991 B2 JP3144991 B2 JP 3144991B2 JP 18887594 A JP18887594 A JP 18887594A JP 18887594 A JP18887594 A JP 18887594A JP 3144991 B2 JP3144991 B2 JP 3144991B2
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- divided
- panels
- panel
- furnace
- 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 - Fee Related
Links
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、混銑車炉体耐火物築造
用上部型枠組付撤去方法および該方法に用いられる上部
型枠組付撤去台車に係り、さらに詳しくは、混銑車の炉
体内に組み付けられた下部型枠上に、上部型枠を安全か
つ容易に組み付けたり撤去できる混銑車炉体耐火物築造
用上部型枠組付撤去方法および該方法に用いられる上部
型枠組付撤去台車に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing an upper formwork assembly for refractory construction of a furnace of a mixed-iron car body and a removal car with an upper formwork assembled for use in the method. The present invention relates to a method for removing an upper formwork for building a refractory for a mixed iron car furnace body capable of assembling and removing an upper formwork safely and easily on an assembled lower formwork, and an upper formwork removal car used in the method.
【０００２】[0002]
【従来の技術】混銑車には、上部中央に受銑口が設けら
れた横長な炉体が回転可能に取り付けられている。溶銑
などの熱に耐えるために、一般に炉体の内面には、炉体
全体にわたってパーマネント煉瓦の表面に耐熱煉瓦が肉
厚に積み重ねられている。しかし、このように耐熱煉瓦
を炉体内に肉厚に積み重ねるのは、大変手間がかかり、
作業性が悪くて多数の作業者が必要であった。2. Description of the Related Art A mixed-iron car is provided with a horizontally long furnace body rotatably provided with a receiving port in the upper center. In order to withstand the heat of hot metal or the like, a heat-resistant brick is generally thickly stacked on the inner surface of the furnace body on the surface of the permanent brick over the entire furnace body. However, stacking the heat-resistant bricks thick in the furnace in this way takes a lot of trouble,
The workability was poor and a large number of workers were required.
【０００３】そこで、これらの問題点を解決するため
に、本願出願人の出願による特開平１−１７９８８８号
公報に記載された「窯炉耐火ライニング築造用中子装
置」を用いて炉体の耐火物を不定形耐火物により築造す
る方法が知られている。このものは、横長の伸縮可能な
筒形中空枠体を炉体内で伸長させて型枠を設け、この型
枠を内方から多数個の横移動可能な枠体拡張リングによ
り支持し、その後、炉体と型枠との間に不定形耐火物を
流し込んで耐火物を築造するものである。なお、それぞ
れの枠体拡張リングは、受銑口から吊下された吊下アー
ムの下端部に固着された横方向に伸縮可能なリング支持
アームに取り付けられている。[0003] In order to solve these problems, in order to solve the above-mentioned problems, the fireproofing of a furnace body is performed by using a "core apparatus for building a furnace refractory lining" described in Japanese Patent Application Laid-Open No. 1-179888 filed by the present applicant. 2. Description of the Related Art There is known a method of constructing an object with an amorphous refractory. In this furnace, a horizontally elongated telescopic tubular hollow frame body is extended in a furnace to provide a mold, and this mold is supported by a large number of horizontally movable frame expansion rings from the inside. The refractory is built by pouring an irregular refractory between the furnace body and the formwork. Each frame expansion ring is attached to a laterally expandable and contractible ring support arm fixed to the lower end of a suspension arm suspended from a receiving port.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記従
来の窯炉耐火ライニング築造用中子装置を用いた混銑車
炉体の耐火物築造方法では、型枠が伸縮可能な筒形中空
枠体からなるので、内方から多数個の枠体拡張リングに
より支持しても型枠が不定形耐火物を流し込む際に浮力
に対して弱くなり、これを防止するためにパーマネント
煉瓦と筒形中空枠体との間に、多数個のスペーサブロッ
クを配設する必要があり、従ってこのスペーサブロック
を取り付ける時間がかかって、型枠の組み付け時間が長
くなっていた。However, in the conventional method for building a refractory of a kiln furnace using the above-described core apparatus for building a refractory lining of a kiln, the form of the furnace is made of a tubular hollow frame which can be expanded and contracted. So, even if it is supported by a large number of frame expansion rings from the inside, the formwork becomes weak against buoyancy when pouring irregular shaped refractory, and to prevent this, permanent brick and cylindrical hollow frame In the meantime, it is necessary to dispose a large number of spacer blocks, so that it takes time to attach the spacer blocks, and the assembling time of the mold is long.
【０００５】これを解消する一策として、型枠を、多数
枚の下パネルからなる下部型枠と、多数枚の上パネルか
らなる上部型枠とにより構成することが考えられるが、
狭い炉体内で、１枚数十ｋｇと予想される上下パネル、
特に作業者による持ち上げが必要な上パネルの搬送、組
み付け、解体撤去を行うためには、多大な労力が必要で
あると共に、安全性にも問題が残る。As a measure to solve this problem, it is conceivable that the mold is composed of a lower mold composed of a number of lower panels and an upper mold composed of a number of upper panels.
Upper and lower panels expected to be tens of kilograms in a narrow furnace,
In particular, in order to transport, assemble, and dismantle and remove the upper panel that needs to be lifted by an operator, a great deal of effort is required, and safety remains a problem.
【０００６】本発明はこのような実情に鑑みなされたも
ので、混銑車の炉体内に組み付けられた下部型枠上に、
上部型枠を安全かつ容易に組み付けたり解体撤去できる
混銑車炉体耐火物築造用上部型枠組付撤去方法および該
方法に用いられる上部型枠組付撤去台車を提供すること
を目的とする。[0006] The present invention has been made in view of such circumstances, and a lower formwork assembled in the furnace of a mixed iron car has
It is an object of the present invention to provide a method of assembling and removing an upper formwork for building a refractory for a mixed iron car furnace body, which can safely and easily assemble and disassemble an upper formwork, and a removal truck with an upper formwork assembly used in the method.
【０００７】[0007]
【課題を解決するための手段】本発明の目的に沿う請求
項１記載の混銑車炉体耐火物築造用上部型枠組付撤去方
法は、炉体の下部内に組み付けられた断面円弧状の下部
型枠上に敷設された台車レールに、前記炉体の上部中央
の受銑口から搬入された上部型枠組付撤去台車を載置す
る工程と、多数枚の上パネルからなる上部型枠を、周方
向に向かって左側分割上パネル、右側分割上パネルおよ
び上側分割上パネルに分割し、そのうちの該左右側分割
上パネルをつぼみ状に仮連結して、前記受銑口から前記
上部型枠組付撤去台車に搭載する工程と、該台車を所定
位置まで移動させて、前記左右側分割上パネルの仮連結
を解除し、前記上部型枠組付撤去台車により、前記左右
側分割上パネルをそれぞれの組付位置まで外方へ横移動
させて前記下部型枠上に組み付ける工程と、前記受銑口
から上側分割上パネルを前記台車に搭載する工程と、該
台車を所定位置まで移動させて、前記上部型枠組付撤去
台車により前記上側分割上パネルを組付位置まで上昇さ
せた後、前記左右側分割上パネルの上部間に組み付ける
工程と、型枠撤去時に、前記上部型枠組付撤去台車を用
いて、養生固化された不定形耐火物の内周面から上側分
割上パネルを剥離し、前記受銑口より炉外へ撤去する工
程と、前記上部型枠組付撤去台車により、前記養生固化
された不定形耐火物の内周面から左右側分割上パネルを
剥離して、搬入時と同様に該左右側分割上パネルをつぼ
み状に仮連結してから、前記受銑口より炉外へ撤去する
工程とを備えるように構成されている。According to a first aspect of the present invention, there is provided a method for removing an upper formwork for building a refractory of a mixed iron car furnace body, the method comprising the steps of: A step of placing the upper formwork-assembled removal carriage carried in from the upper central receiving port on the bogie rail laid on the formwork, and an upper formwork comprising a number of upper panels, Divided into a left divided upper panel, a right divided upper panel and an upper divided upper panel in the circumferential direction, and the left and right divided upper panels are temporarily connected in a bud shape, and the upper formwork assembly is assembled from the receiving hole. A step of mounting the vehicle on the removal carriage, moving the carriage to a predetermined position, releasing the temporary connection of the left and right divided upper panels, and attaching the left and right divided upper panels to the respective sets by the upper formwork assembly removal carriage. To the lower part Assembling the upper split panel, mounting the upper split upper panel on the bogie from the receiving port, moving the bogie to a predetermined position, and assembling the upper split upper panel with the upper formwork assembly removal bogie. After ascending to the position, a step of assembling between the upper portions of the left and right split upper panels, and when removing the form, from the inner peripheral surface of the cured and solidified refractory using the upper form assembling removal cart. A step of peeling the upper split upper panel and removing it from the iron receiving port to the outside of the furnace, and removing the left and right split upper panels from the inner peripheral surface of the cured and solidified refractory by the upper formwork assembly removal cart. Peeling off and temporarily connecting the left and right divided upper panels in a bud-like manner as in the case of carrying in, and then removing the upper panel from the iron receiving port to the outside of the furnace.
【０００８】また、請求項２記載の上部型枠組付撤去台
車は、混銑車の炉体の下部内に組み付けられた断面円弧
状の下部型枠上に敷設された台車レールを走行する台車
本体を有し、周方向に向かって、左側部分割上パネル
と、右側部分割上パネルと、上部分割上パネルとに分割
される多数枚の上部パネルからなる上部型枠を、炉体の
上部内に組付撤去する上部型枠組付撤去台車であって、
前記台車本体の上部に、前記左右側分割上パネルをそれ
ぞれ横方向へ移動させる左右側サイドシリンダを設ける
と共に、前記上部分割上パネルを昇降させる昇降シリン
ダを設けるように構成されている。[0008] In a second aspect of the present invention, there is provided a removal bogie with an upper formwork assembled on a bogie rail running on a bogie rail laid on an arc-shaped lower formwork assembled in a lower part of a furnace body of a mixed iron car. In the circumferential direction, in the upper part of the furnace body, a left upper divided panel, a right divided upper panel, and an upper formwork composed of a number of upper panels divided into an upper divided upper panel. An upper formwork assembly removal cart to be assembled and removed,
At the upper part of the bogie main body, left and right side cylinders for respectively moving the left and right divided upper panels in the lateral direction are provided, and an elevating cylinder for raising and lowering the upper divided upper panel is provided.
【０００９】[0009]
【作用】請求項１、２記載の混銑車炉体耐火物築造用上
部型枠組付撤去方法または該方法に用いられる上部型枠
組付撤去台車においては、型枠組付時に、左右側分割上
パネルをつぼみ状に仮連結して受銑口より炉内へ入れ、
これを上部型枠組付撤去台車に搭載し、台車レールに沿
って所定の組み付け位置まで搬送する。その後、仮連結
を解除された左右側分割上パネルを、上部型枠組付撤去
台車により外方に横移動させて下部型枠上に組み付け、
続いて炉内へ取り込まれた上側分割上パネルを、上部型
枠組付撤去台車により所定位置まで搬送して上昇させ、
左右側分割上パネルの上部空間に組み付ける。According to the first and second embodiments of the present invention, there is provided a method for removing an upper formwork assembly for refractory construction of a furnace of a mixed iron car body or an upper formwork removal truck used in the method. Temporarily connected in the shape of a bud, put it into the furnace from the receiving port,
This is mounted on an upper formwork removal truck and transported along a truck rail to a predetermined assembly position. After that, the left and right split upper panels, for which temporary connection has been released, are moved laterally outward by the upper formwork assembly removal cart and assembled on the lower formwork,
Subsequently, the upper split upper panel taken into the furnace is transported to a predetermined position by the upper formwork assembly removal truck and raised,
Assemble in the upper space of the left and right split upper panel.
【００１０】型枠撤去時には、養生固化された不定形耐
火物の内周面から、上部型枠組付撤去台車により、左右
側分割上パネルを内側へ引っ張って剥離し、上側分割上
パネルも同様に不定形耐火物の内周面から、上部型枠組
付撤去台車により引き下げて剥離した後に撤去するの
で、上部型枠を構成する左右上側分割上パネルの組付解
体が安全かつ容易になり、その作業時間も短縮できる。At the time of removing the formwork, the upper left and right split upper panels are pulled inward from the inner peripheral surface of the cured and solidified refractory by the upper formwork assembling trolley, and the upper split upper panel is similarly removed. Since it is removed from the inner peripheral surface of the irregular-shaped refractory by pulling it down with an upper formwork removal trolley and then removing it, the assembly and disassembly of the upper left and right upper divided upper panels forming the upper formwork is safe and easy. Time can also be reduced.
【００１１】特に、請求項２記載の上部型枠組付撤去台
車においては、型枠の組付撤去時に、油圧式の左右側サ
イドシリンダにより左右側分割上パネルをそれぞれ横方
向へ移動させ、また油圧式の昇降シリンダにより上部分
割上パネルを昇降させて、上パネルの解体撤去を行うの
で、ボタン操作により簡単にこれらの作業ができ、しか
も型枠撤去時の養生固化した不定形耐火物の内周面か
ら、左右側分割上パネルや上部分割上パネルの引き剥が
しを、大きな力で良好に行える。In particular, in the removal truck with the upper formwork assembled according to the second aspect, when the formwork is assembled and removed, the left and right split upper panels are moved in the lateral direction by the hydraulic left and right side cylinders, respectively. The upper panel is lifted and lowered by a lifting cylinder, and the upper panel is dismantled and removed, so these operations can be easily performed with the push of a button.In addition, the inner periphery of the cured and solidified refractory when removing the formwork From the surface, the left and right split upper panels and the upper split upper panel can be peeled off with a large force.
【００１２】[0012]
【実施例】続いて、添付した図面を参照しつつ、本発明
を具体化した実施例につき説明し、本発明の理解に供す
る。ここに、図１は本発明の一実施例に係る混銑車炉体
耐火物築造用上部型枠組付撤去方法が適用された炉体の
型枠組み付け状態を示す断面図、図２は下部型枠の組み
付け作業状態を示す炉体の要部縦断面図、図３は本発明
の一実施例に係る上部型枠組付撤去台車の炉体中央部に
おける上部型枠組付撤去作業状態を示す側面図、図４は
上部型枠組付撤去台車の炉体中央部における上部型枠組
付撤去作業状態を示す正面図、図５は上部型枠組付撤去
台車の炉体中央部における上部型枠組付撤去作業状態を
示す平面図、図６は上部型枠組付撤去台車のリニアガイ
ドとの掛止構造を示す要部拡大正面図、図７は上部型枠
組付撤去台車の炉体端部における上部型枠組付撤去作業
状態を示す側面図、図８は上段分割上パネルの引き剥が
し部材の使用状態を示す拡大正面図、図９は引き剥がし
部材の使用状態を示す拡大側面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a cross-sectional view showing a state in which a furnace body is assembled with a method of assembling and removing an upper formwork for building a refractory for a mixed iron car furnace body according to an embodiment of the present invention, and FIG. 2 is a lower formwork. FIG. 3 is a side view showing an upper mold assembling / removing operation state at the center of the furnace body of an upper form assembling / removing vehicle according to an embodiment of the present invention. FIG. 4 is a front view showing an upper formwork assembly removing work at the center of the furnace body of the upper formwork removing carriage, and FIG. 5 is an upper formwork assembly removing work at the furnace body center of the upper formwork removing carriage. FIG. 6 is an enlarged front view of a main part showing a structure for engaging the upper formwork removal carriage with the linear guide, and FIG. 7 is an upper formwork removal work at the furnace body end of the upper formwork removal carriage. FIG. 8 is a side view showing the state, and FIG. 8 shows the use state of the peeling member of the upper divided upper panel. Enlarged front view, FIG. 9 is an enlarged side view showing a state of use of the peeling member.
【００１３】図１に示すように、混銑車（トピードカ
ー）には横長な炉体１１が回転可能に取り付けられてお
り、炉体１１の鉄皮１１ａの内面には、予め断熱煉瓦を
含むパーマネント煉瓦１２が敷設されている。不定形耐
火物は、このパーマネント煉瓦１２の上に施工される。
まず、この炉体１１に耐火物を築造するための型枠１３
を詳細に説明する。型枠１３は、炉体１１の上下部にそ
れぞれ組み付けられる下部型枠１４および上部型枠１
５、炉体１１の湾曲する両端部に組み付けられるコニカ
ル型枠１６、炉体１１の上部中央の受銑口１７およびそ
の周辺に配置される受銑口型枠１８を有している。As shown in FIG. 1, a horizontally long furnace body 11 is rotatably attached to a torpedo car, and a permanent brick including an insulating brick is previously provided on an inner surface of a steel shell 11a of the furnace body 11. 12 are laid. The irregular-shaped refractory is constructed on the permanent brick 12.
First, a mold 13 for building a refractory in the furnace body 11 is provided.
Will be described in detail. The formwork 13 includes a lower formwork 14 and an upper formwork 1 that are respectively assembled to upper and lower portions of the furnace body 11.
5, a conical form 16 to be assembled to both curved end portions of the furnace body 11, a metal receiving port 17 at the upper center of the furnace body 11, and a metal receiving port form 18 arranged around the same.
【００１４】図２に示すように、下部型枠１４は鉄製の
型枠であり、炉体１１を縦方向に断面視した状態で、ほ
ぼ下３分の１ほどの円弧状になった多数個の下パネル１
９と、１枚の比較的厚さが薄い下パネル２２とを組み合
わせたものである。下パネル１９、２２の上側フレーム
２０には、ネット状の作業床２１が敷設されており、そ
れぞれの作業床２１の中央部には、炉体１１の長さ方向
に延びる左右一対の台車レール２４が設けられている。
従って、炉体１１の下部内に下部型枠１４を組み付け終
わった状態では、下部型枠１４上全域に作業床２１が広
がり、しかも作業床２１上には炉体１１のほぼ全長にわ
たって台車レール２４が連続している。下パネル１９、
２２の上部中央には、後述するリニアガイド４２に沿っ
てこれらの下パネル１９、２２を吊り下げ状態で移動さ
せる図外の一対のローラをボルト連結により着脱可能に
取り付けている。As shown in FIG. 2, the lower formwork 14 is an iron formwork, and when the furnace body 11 is viewed in a vertical cross-section, a large number of arcs of about one third lower are formed. Lower panel 1
9 and one lower panel 22 having a relatively small thickness. A net-like work floor 21 is laid on the upper frame 20 of the lower panels 19 and 22. A pair of right and left bogie rails 24 extending in the longitudinal direction of the furnace body 11 is provided at the center of each work floor 21. Is provided.
Therefore, when the lower formwork 14 has been assembled in the lower portion of the furnace body 11, the work floor 21 spreads over the entire area of the lower formwork 14, and the bogie rails 24 extend over substantially the entire length of the furnace body 11 on the work floor 21. Is continuous. Lower panel 19,
A pair of unillustrated rollers for moving these lower panels 19 and 22 in a suspended state along a linear guide 42 described later are detachably attached to the upper center of the upper part 22 by bolt connection.
【００１５】図１に示すように、上部型枠１５は、軽量
部材の一例であるアルミニウムまたはＦＲＰ製の型枠で
あり、下部型枠１４上に連結される多数個のアーチ状の
上パネル２５を組み合わせたものである。それぞれの上
パネル２５は、左右側分割上パネルの一例である左右一
対の下段分割上パネル２６および中段分割上パネル２７
と、上側分割上パネルの一例である１枚の上側分割上パ
ネル２８とにより５分割されている。分割された各パネ
ル２５〜２７の重さは、作業者が持ち運び可能な２５ｋ
ｇくらいに抑えられており、横幅も受銑口１７から出し
入れできるように５００ｍｍ程度になっている。As shown in FIG. 1, the upper mold 15 is an aluminum or FRP mold which is an example of a lightweight member, and has a large number of arch-shaped upper panels 25 connected to the lower mold 14. Are combined. Each upper panel 25 includes a pair of left and right lower divided upper panels 26 and a middle divided upper panel 27 which are examples of a left and right divided upper panel.
And one upper divided upper panel 28 which is an example of the upper divided upper panel. The weight of each of the divided panels 25 to 27 is 25 k which can be carried by an operator.
g, and the width is about 500 mm so that it can be put in and taken out of the receiving port 17.
【００１６】なお、炉体１１の先細りとなった両端部付
近の上パネル２５は、２枚の下段分割上パネル２６′と
２枚の上段分割上パネル２８′とにより構成されてい
る。また、コニカル型枠１６もアルミニウムまたはＦＲ
Ｐ製の型枠である。そして、型枠１３に使用される全て
のパネル１９、２２、２５の外面には、型枠解体時に、
養生固化された不定形耐火物の内周面から剥離し易いよ
うに、例えば樹脂シートのような剥離材が貼着されてい
る。The upper panel 25 near the tapered ends of the furnace body 11 is composed of two lower divided upper panels 26 'and two upper divided upper panels 28'. Also, the conical form 16 is made of aluminum or FR.
It is a mold made of P. Then, on the outer surfaces of all the panels 19, 22, 25 used for the mold 13, when the mold is dismantled,
A release material such as a resin sheet is adhered so that the cured and solidified refractory can be easily peeled off from the inner peripheral surface.
【００１７】図４に示すように、左側の下中段分割上パ
ネル２６、２７と、右側の下中段分割上パネル２６、２
７とは、予め炉外においてボルト連結されており、しか
も連結された左右側の下中段分割上パネル２６、２７
は、上下配置される長短の仮連結バー３０、３１により
着脱可能に仮連結されている。なお、倉庫における保管
もつぼみ状態のまま行えば、上パネル２５の運搬、保管
がし易くなる。As shown in FIG. 4, the left lower middle divided upper panels 26, 27 and the right lower middle divided upper panels 26, 27 are formed.
7 are bolted outside the furnace in advance, and are connected to the left and right lower middle divided upper panels 26 and 27.
Are temporarily connected detachably by long and short temporary connection bars 30 and 31 arranged vertically. In addition, if the storage in the warehouse is carried out in the state of being depressed, the upper panel 25 can be easily transported and stored.
【００１８】次に、これらの型枠１３を炉体１１に組み
付ける型枠組み付け装置３９を説明する。図２に示すよ
うに、型枠組み付け装置３９は、炉体１１の両端部間に
架設されたリニアガイド４２と、主ガイドレール４０を
炉体１１内で保持する一対の吊下装置４３と、受銑口１
７から型枠１３や型枠組み付け装置３９の構成部品を出
し入れさせるクレーン４４と、下部型枠１４上の台車レ
ール２４に沿って移動する上部型枠組付撤去台車４６
（図３〜６参照）とを備えている。Next, a description will be given of a mold framing apparatus 39 for assembling these molds 13 to the furnace body 11. As shown in FIG. 2, the formworking device 39 includes a linear guide 42 provided between both ends of the furnace body 11, a pair of suspension devices 43 for holding the main guide rails 40 in the furnace body 11, Acceptor 1
7, a crane 44 for taking in and out the components of the formwork 13 and the formwork attaching device 39, and an upper formwork assembly removal carriage 46 moving along the carriage rail 24 on the lower formwork 14.
(See FIGS. 3 to 6).
【００１９】図２〜４に示すように、リニアガイド４２
は、左右側に配置された一対の主ガイドレール４０と、
これらの主ガイドレール４０間に着脱可能に連結される
ダミーレール４１とからなる。これらのレール４０、４
１は、いずれも２本のＩ型鋼を平行に連結させて形成さ
れており（図５参照）、リニアガイド４２は、ダミーレ
ール４１が連結された両主ガイドレール４０の先端部
を、鉄皮１１ａの長さ方向の両端部内面に設けられた一
対のレール掛止金具４８にそれぞれ嵌入することによ
り、下部型枠１４の上方位置で架設される。As shown in FIGS.
Is a pair of main guide rails 40 arranged on the left and right sides,
A dummy rail 41 is detachably connected between the main guide rails 40. These rails 40, 4
1 is formed by connecting two I-beams in parallel (see FIG. 5), and the linear guide 42 is formed by connecting the distal ends of the two main guide rails 40 to which the dummy rails 41 are connected with a steel shell. By fitting into a pair of rail hooks 48 provided on the inner surfaces of both ends in the length direction of 11a, respectively, it is installed above the lower formwork 14.
【００２０】それぞれの主ガイドレール４０は、互いに
着脱可能にボルト連結される比較的細く短尺な先端部レ
ール４９と、２本の分割主ガイドレール５０Ａ、５０Ｂ
とにより構成されている。図２部分拡大図に示すよう
に、それぞれの分割主ガイドレール５０Ｂのダミーレー
ル４１側の端部の下部には下側受け板５０ａが設けられ
ており、またダミーレール４１の両端部の上部には溝形
鋼状の上側受け板５０ｂが設けられている。両主ガイド
レール４０とダミーレール４１の連結時に、左右の下側
受け板５０ａがダミーレール４１の両端部を下方から支
える一方、それぞれの上側受け板５０ｂが両主ガイドレ
ール４０の端部上に被さることにより両レール４０、４
１は連結される。次に、リニアガイド４２を吊下する前
記吊下装置４３を詳細に説明する。Each main guide rail 40 has a relatively thin and short distal end rail 49 which is detachably bolted to each other, and two divided main guide rails 50A and 50B.
It is composed of As shown in the partial enlarged view of FIG. 2, a lower receiving plate 50 a is provided at a lower portion of an end of each divided main guide rail 50 </ b> B on the dummy rail 41 side, and is provided at an upper portion of both ends of the dummy rail 41. Is provided with a channel-shaped steel upper receiving plate 50b. When the two main guide rails 40 and the dummy rail 41 are connected, the left and right lower receiving plates 50a support both ends of the dummy rail 41 from below, while the respective upper receiving plates 50b are placed on the ends of the two main guide rails 40. Cover both rails 40, 4
1 are linked. Next, the suspension device 43 for suspending the linear guide 42 will be described in detail.
【００２１】吊下装置４３は、炉体１１の左右の排気口
１１ｂ上に配設されたスクリュージャッキ方式の図外の
昇降装置を有しており、各昇降装置の昇降ロッド５２は
炉体１１内に向かって下方へ延び、その下端部付近に固
着された二股状の連結部材５３と共に、主ガイドレール
４０の上面に着脱可能のボルト連結されている。次に、
図３〜６を参照して、上部型枠１５を搬送する前記上部
型枠組付撤去台車４６を説明する。The suspension device 43 has a screw jack type lifting device (not shown) disposed on the left and right exhaust ports 11 b of the furnace body 11. It is attached to the upper surface of the main guide rail 40 with a detachable bolt together with a bifurcated connecting member 53 that extends downward and is fixed near the lower end thereof. next,
With reference to FIGS. 3 to 6, the upper formwork assembling and removing carriage 46 that carries the upper formwork 15 will be described.
【００２２】図３〜５に示すように、上部型枠組付撤去
台車４６は走行装置のない手押し式の台車であり、台車
本体５４の下部には４個の車輪５５が取り付けられてい
る。また、台車本体５４の両端部中央部には突出部５４
ａが取り付けられており、突出部５４ａの両側の下部に
は、リニアガイド４２に摺動可能に掛止された一対のス
トッパ５４ｂが着脱可能に取り付けられている（図６も
参照）。台車本体５４の一端部上には、下中段分割上パ
ネル２６、２７の搬送時に、仮連結された左右側の下中
段分割上パネル２６、２７を支持できると共に、上段分
割上パネル２８の組付解体時に、上段分割上パネル２８
を昇降させる昇降シリンダの一例である油圧式のテレス
コシリンダ６０が取り付けられている。As shown in FIGS. 3 to 5, the upper formwork-assembled removal carriage 46 is a hand-operated carriage without a traveling device, and four wheels 55 are attached to a lower portion of the carriage body 54. Also, a projecting portion 54 is provided at the center of both ends of the bogie main body 54.
a, a pair of stoppers 54b slidably engaged with the linear guide 42 are detachably attached to lower portions on both sides of the protrusion 54a (see also FIG. 6). On one end of the bogie main body 54, the lower middle middle upper panels 26, 27 temporarily connected to each other can be supported when the lower middle middle upper panels 26, 27 are transported, and the upper middle upper panel 28 is assembled. At the time of disassembly, the upper division upper panel 28
A hydraulic telescopic cylinder 60, which is an example of an elevating cylinder for elevating and lowering, is mounted.
【００２３】テレスコシリンダ６０のロッド６１には、
炉体１１の先細り状になった両端部付近の上段分割上パ
ネル２８′を組付解体する際に用いられる傾斜状態の端
部用金具６２が固着されている。また、端部用金具６２
上には、上面が水平になって、炉体１１の両端部付近以
外の上段分割上パネル２８を組付解体する際に用いられ
る中央部用金具６３が、着脱可能にボルト連結されてい
る。台車本体５４のテレスコシリンダ６０の近くには、
筒状のガイドリング６４が取り付けられており、ガイド
リング６４に、上端部が端部用金具６２に固着されたガ
イドシャフト６５が出し入れ可能に挿入されている。テ
レスコシリンダ６０のロッド６１を出し入れさせること
により、端部用金具６２に固定された中央部用金具６３
が、ガイドリング６４およびガイドシャフト６５に案内
されて垂直方向に昇降される。The rod 61 of the telescopic cylinder 60 includes
An inclined end fitting 62 used when assembling and disassembling the upper divided upper panel 28 'near the tapered ends of the furnace body 11 is fixed. Also, the end fitting 62
On the upper side, a central metal fitting 63 used for assembling and disassembling the upper divided upper panel 28 other than near both ends of the furnace body 11 is detachably bolted. Near the telescopic cylinder 60 of the bogie main body 54,
A cylindrical guide ring 64 is attached, and a guide shaft 65 whose upper end is fixed to the end fitting 62 is inserted into the guide ring 64 so that it can be taken in and out. By moving the rod 61 of the telescopic cylinder 60 in and out, the center metal fitting 63 fixed to the end metal fitting 62
Is guided by the guide ring 64 and the guide shaft 65 and vertically moved up and down.
【００２４】また、台車本体５４のテレスコシリンダ６
０の台車中央側には、左右一対の台部６６が設けられて
おり、台部６６間上には、油圧シリンダからなる左側サ
イドシリンダ６７および右側サイドシリンダ６８が、ロ
ッド６７ａ、６８ａの突出方向を反対にして水平に並べ
て取り付けられている。左右側サイドシリンダ６７、６
８は、型枠組付時に、仮連結バー３０、３１による仮連
結状態が解除された左右側の下中段分割上パネル２６、
２７を、下部型枠１４との各組付位置まで外方へ横移動
させたり、型枠撤去時に、養生固化された不定形耐火物
Ｂの内周面から下中段分割上パネル２６、２７を内方へ
引っ張って剥離させるシリンダである。ロッド６７ａ、
６８ａ先端部には、型枠組付時に下中段分割上パネル２
６、２７を外方へ押したり、型枠撤去時に、下中段分割
上パネル２６、２７の内面のワイヤ掛け部（図外）に掛
止されたワイヤを架けるＬ字形の押し引き金具６９が固
着されている。The telescopic cylinder 6 of the carriage body 54
A pair of left and right pedestals 66 is provided at the center side of the trolley 0, and a left side cylinder 67 and a right side cylinder 68 each composed of a hydraulic cylinder are provided between the pedestals 66 in a projecting direction of the rods 67a, 68a. It is mounted horizontally side by side. Left and right side cylinders 67, 6
8 is a lower middle divided upper panel 26 on the left and right sides in which the temporary connection state by the temporary connection bars 30 and 31 is released at the time of assembling the formwork.
27 is moved laterally outward to each of the mounting positions with the lower formwork 14, or when the formwork is removed, the lower middle split upper panels 26, 27 are separated from the inner peripheral surface of the cured refractory B. This is a cylinder that is pulled inward and peeled off. Rod 67a,
68a, the lower middle divided upper panel 2 when assembling the formwork.
When pushing out the molds 6, 27 or removing the formwork, an L-shaped push-pull fitting 69 for attaching a wire hooked to a wire hooking portion (not shown) on the inner surface of the lower middle divided upper panel 26, 27 is fixed. Have been.
【００２５】また、台座６６の左右側サイドシリンダ６
７、６８の下部間には、対応する押し引き金具６９に先
端部が固着された回り止めシャフト７０が、台部６６に
取り付けられたベアリングを介して、水平方向へ出し入
れ可能に取り付けられている。左右側サイドシリンダ６
７、６８のロッド６７ａ、６８ａを出し入れさせると、
回り止めシャフト７０により捩じれが防止されてそれぞ
れの押し引き金具６９が水平方向へ出し入れされる。そ
の他、台車本体５４上には、油圧タンク７１、油圧制御
盤７２、バブルスタンド７３が搭載されている。The left and right side cylinders 6 of the pedestal 66
A non-rotating shaft 70 whose front end is fixed to a corresponding push / pull fitting 69 is mounted between the lower portions of the lower and upper parts 7 and 68 via a bearing attached to the base 66 so as to be able to be moved in and out in the horizontal direction. . Left and right side cylinder 6
When the rods 67a, 68a of 7, 68 are put in and out,
The twisting is prevented by the rotation preventing shaft 70, and the respective push / pull fittings 69 are moved in and out in the horizontal direction. In addition, a hydraulic tank 71, a hydraulic control panel 72, and a bubble stand 73 are mounted on the bogie main body 54.
【００２６】なお、図２において、符合５０ｃは両主ガ
イドレール４０とダミーレール４１との隣接する側部ど
うしを連結する連結板、図６において、符合７４はリニ
アガイド４２に昇降ロッド５２の連結部材５３を固定す
るプレート、図８において、符合７５は上部にワイヤ掛
け用の長孔７５ａが形成されて、型枠撤去時に上段分割
上パネル２８を不定形耐火物Ｂの内周面から引き剥がす
際に使用される引き剥がし部材、符合７６は引き剥がし
部材７５と端部用金具６２とを連結するボルト、図２の
符合９３は受銑口１７の仕切り筒である。In FIG. 2, reference numeral 50c denotes a connecting plate for connecting the adjacent side portions of the two main guide rails 40 and the dummy rail 41. In FIG. 6, reference numeral 74 denotes a connection of the linear guide 42 to the lifting rod 52. 8, a plate 75 for fixing the member 53 is provided with a long hole 75a for wire hooking at an upper portion, and peels off the upper divided upper panel 28 from the inner peripheral surface of the irregular-shaped refractory B when removing the formwork. Reference numeral 76 denotes a bolt for connecting the peeling member 75 and the end fitting 62, and reference numeral 93 in FIG.
【００２７】続いて、上部型枠組付撤去台車４６を用い
た本発明の一実施例に係る混銑車炉体耐火物築造用上部
型枠組付撤去方法について説明する。図２に示すよう
に、クレーン４４により先端部レール４９、分割主ガイ
ドレール５０Ａ、５０Ｂを受銑口１７より炉体１１内に
運び込んで連結し、左右一対の主ガイドレール４０を組
み立てる（以下、炉体１１内への各種部材や装置の出し
入れは、クレーン４４により行うものとする。）次い
で、主ガイドレール４０の先端部レール４９側の端部を
レール掛止金具４８に押し込んで掛止する一方、主ガイ
ドレール４０を炉体１１の排気口１１ｂ上に固定された
昇降装置の昇降ロッド５２の下端にボルト連結により固
着し、それぞれの主ガイドレール４０を水平に保持す
る。Next, a description will be given of a method of removing the upper formwork for the construction of a refractory for a mixed iron car furnace body according to one embodiment of the present invention using the upper formwork removal truck 46. As shown in FIG. 2, the tip rail 49 and the divided main guide rails 50 </ b> A and 50 </ b> B are carried into the furnace body 11 from the receiving port 17 by the crane 44 and connected to each other to assemble a pair of left and right main guide rails 40 (hereinafter, referred to as a main guide rail). The various members and devices are taken in and out of the furnace body 11 by the crane 44.) Then, the end of the main guide rail 40 on the tip rail 49 side is pushed into the rail hooking bracket 48 to be hooked. On the other hand, the main guide rails 40 are fixed to the lower ends of the elevating rods 52 of the elevating device fixed on the exhaust port 11b of the furnace body 11 by bolt connection, and the respective main guide rails 40 are held horizontally.
【００２８】次いで、下パネル１９の上部に対配置され
た図外のローラ間に、ダミーレール４１を挿通して固定
し、これを受銑口１７から炉体１１内に吊り入れ、分割
主ガイドレール５０Ｂの下側受け板５０ａがダミーレー
ル４１の両端部を下方から支え、しかもそれぞれのダミ
ーレール４１の溝形鋼状を有する上側受け板５０ｂが、
両側主ガイドレール４０の端部上に被さるように両主ガ
イドレール４０とダミーレール４１とを連結させて、リ
ニアガイド４２を組み立てる。この組み立てを完了して
ダミーレール４１の固定状態を解くと、下パネル１９は
リニアガイド４２に移動可能に吊下されることになる。
その後、作業者が下パネル１９をリニアガイド４２に沿
って炉体１１内の所定位置まで移動させる。Next, a dummy rail 41 is inserted and fixed between rollers (not shown) arranged on the upper portion of the lower panel 19, and the dummy rail 41 is hung from the receiving hole 17 into the furnace body 11 to be divided into main split guides. The lower receiving plate 50a of the rail 50B supports both ends of the dummy rail 41 from below, and the upper receiving plate 50b of each dummy rail 41, which has a grooved steel shape,
The linear guide 42 is assembled by connecting the two main guide rails 40 and the dummy rail 41 so as to cover the ends of the both-side main guide rails 40. When this assembly is completed and the fixed state of the dummy rail 41 is released, the lower panel 19 is movably suspended by the linear guide 42.
Thereafter, the operator moves the lower panel 19 along the linear guide 42 to a predetermined position in the furnace body 11.
【００２９】次いで、クレーン４４によりダミーレール
４１を炉体１１上に引き上げ、次の下パネル１９をこの
レール４１に取り付けて固定し、再びレール４１を炉体
１１内に入れて、両主ガイドレール４０に連結させ、作
業者が同様に炉体１１の所定位置まで移動させる。この
操作を炉体１１の両側方に下パネル１９を振り分けなが
ら全ての下パネル１９について行う。なお、コニカル型
枠１６は、組み付け易い適時に、作業者により組み付け
られる。Next, the dummy rail 41 is lifted up onto the furnace body 11 by the crane 44, the next lower panel 19 is attached and fixed to the rail 41, and the rail 41 is put into the furnace body 11 again. 40, and the operator similarly moves the furnace body 11 to a predetermined position. This operation is performed on all the lower panels 19 while distributing the lower panels 19 to both sides of the furnace body 11. The conical formwork 16 is assembled by an operator at an appropriate time when it is easy to assemble.
【００３０】その後、図２鎖線に示すように、両主ガイ
ドレール４０とダミーレール４１との隣接する側部どう
しを連結板５０ｃにより連結する。こうして組み付けら
れた下部型枠１４の上面には、下部型枠１４の全域にわ
たって作業床２１が広がり、また炉体１１の横方向に台
車レール２４が連続する（図３参照）。次いで、炉体１
１と下部型枠１４との間に、高純度マグネシア質の下部
耐火物築造用の不定形耐火物Ａを、炉体１１内に挿入さ
れた図外のバイブレータにより振動させながら流し込
む。この際、流し込まれた不定形耐火物Ａにより下部型
枠１４が浮き上がろうとするが、リニアガイド４２と下
部型枠１４との間に、適当な間隔で上下一対の図外のテ
ーパライナを複数対介在させることにより、リニアガイ
ド４２を押さえ部材にしてその浮きが防止される。Thereafter, as shown by a chain line in FIG. 2, the adjacent side portions of the two main guide rails 40 and the dummy rails 41 are connected by a connecting plate 50c. On the upper surface of the lower formwork 14 thus assembled, the work floor 21 extends over the entire area of the lower formwork 14, and a bogie rail 24 continues in the lateral direction of the furnace body 11 (see FIG. 3). Next, the furnace body 1
A high-purity magnesia-shaped amorphous refractory A for building a lower refractory is poured into the furnace body 11 while being vibrated by a vibrator (not shown) inserted into the furnace body 11. At this time, the lower mold 14 tends to rise due to the cast refractory A, but a pair of upper and lower taper liners (not shown) are provided between the linear guide 42 and the lower mold 14 at appropriate intervals. By interposing the pair, the linear guide 42 is used as a pressing member to prevent the linear guide 42 from floating.
【００３１】それから、流し込まれた不定形耐火物Ａ
を、例えば一日かけて養生固化させる。次いで、リニア
ガイド４２の両方の先端部レール４９をレール掛止金具
４８と分割主ガイドレール５０Ａ、５０Ｂとから取り外
し、リニアガイド４２と昇降装置の昇降ロッド５２との
連結状態を解除し、リニアガイド４２を下部型枠１４上
に載置する。次いで、図１に示すように、下部型枠１４
を残した状態で、炉体１１の上部に上部型枠１５を組み
付ける。以下、これを詳細に説明する。まず、図３〜５
を参照して炉体中央部における上部型枠１５の組み付け
方法を説明する。Then, the cast refractory A
Is allowed to cure, for example, over a day. Next, the two distal rails 49 of the linear guide 42 are removed from the rail hook 48 and the divided main guide rails 50A and 50B, and the connection between the linear guide 42 and the lifting rod 52 of the lifting device is released. 42 is placed on the lower formwork 14. Next, as shown in FIG.
Is attached to the upper part of the furnace body 11 with the. Hereinafter, this will be described in detail. First, FIGS.
The method of assembling the upper mold 15 at the center of the furnace body will be described with reference to FIG.
【００３２】図３に示すように、上部型枠組付撤去台車
４６を炉体１１内に入れて下部型枠１４上の台車レール
２４に載置する。それから、図４に示すように、仮連結
バー３０、３１によりつぼみ状に仮連結された左右側下
中段分割上パネル２６、２７を、テレスコシリンダ６０
を用いて所定高さまで上昇された中央部用金具６３上に
載置し、そのまま台車レール２４に沿って所定の組み付
け位置まで搬送する。その後、上側の仮連結バー３０の
ボルトを若干緩めると共に、下側の仮連結バー３１を外
し、テレスコシリンダ６０のロッド６１を若干引き戻し
ながら、左右側サイドシリンダ６７、６８のロッド６７
ａ、６８ａを左右方向へ同時に突出させ、左右側下中段
分割上パネル２６、２７の下部を、外方へ徐々に横移動
させて所定の組み付け位置に配置し、下部型枠１４上に
ボルト連結により組み付ける。なお、少なくとも上側の
仮連結バー３０のボルト連結用の孔は、長孔の方が、連
結された左右側下中段分割上パネル２６、２７の左右側
サイドシリンダ６７、６８による拡縮時にスムーズに拡
縮できて好ましい。As shown in FIG. 3, the upper formwork removal truck 46 is put into the furnace body 11 and placed on the carriage rail 24 on the lower formwork 14. Then, as shown in FIG. 4, the left and right lower middle divided upper panels 26 and 27 temporarily connected in a bud shape by the temporary connection bars 30 and 31 are connected to the telescopic cylinder 60.
And is transported to the predetermined mounting position along the carriage rail 24 as it is placed on the metal fitting 63 raised to a predetermined height by using. Thereafter, the bolts of the upper temporary connecting bar 30 are slightly loosened, the lower temporary connecting bar 31 is removed, and the rod 61 of the left and right side cylinders 67, 68 is pulled back while the rod 61 of the telescopic cylinder 60 is slightly pulled back.
a, 68a are simultaneously projected in the left-right direction, and the lower portions of the left and right lower middle divided upper panels 26, 27 are gradually laterally moved outward and arranged at predetermined assembly positions, and bolted onto the lower formwork 14. Assemble with In addition, at least the holes for bolt connection of the upper temporary connection bar 30 are smoothly extended and contracted when the left and right side cylinders 67 and 68 of the connected left and right lower middle division upper panels 26 and 27 are connected. It is possible and preferable.
【００３３】次に、上部型枠組付撤去台車４６を受銑口
１７の直下まで移動させ、炉内へ入れられた上側分割上
パネル２８を、同様に中央部用金具６３上に載置し、そ
れから上部型枠組付撤去台車４６により所定位置まで搬
送し、テレスコシリンダ６０のロッド６１を突出させて
上段分割上パネル２８を上昇させ、左右側下中段分割上
パネル２６、２７の上部空間に押し込んでボルト連結す
る。この作業を、上部型枠１５の中央部が組み付け終わ
るまで、順次、繰り返す。Next, the removal truck 46 with the upper form assembling is moved to just below the receiving port 17, and the upper divided upper panel 28 placed in the furnace is similarly placed on the metal fitting 63 for the central part. Then, it is conveyed to a predetermined position by the upper formwork assembling carriage 46, the rod 61 of the telescopic cylinder 60 is protruded to raise the upper divided upper panel 28, and is pushed into the upper space of the left and right lower divided middle upper panels 26, 27. Connect with bolts. This operation is sequentially repeated until the center of the upper mold 15 is assembled.
【００３４】続いて、図７を参照して、炉体１１の先細
り状になった両端部における上部型枠１５の組み付けを
行う。この際には、予め、上段分割上パネル２８を載置
する金具を、中央部用金具６３を取り外すことにより端
部用金具６２に変更し、上述した作業を繰り返して上パ
ネル２５を組み付ける。なお、炉体１１の最端部近くは
作業空間がかなり狭いので、パネル左右側下上段分割上
パネル２６′、２８′を作業者が抱えて運び込み、手作
業により組み付ける。また、上部型枠１５に連結される
コニカル型枠１６の部分は、適時に運び込まれて組み付
けられる。Subsequently, referring to FIG. 7, the upper mold 15 is assembled at the tapered ends of the furnace body 11. At this time, the metal fitting on which the upper divided upper panel 28 is placed is changed to the metal fitting 62 for the end by removing the metal fitting 63 for the center part, and the above operation is repeated to assemble the upper panel 25. Since the working space is very narrow near the end of the furnace body 11, the operator carries the upper panel 26 ', 28', which is divided into lower left and upper right and left sides, and assembles it by hand. Further, the portion of the conical form 16 connected to the upper form 15 is brought in and assembled in a timely manner.
【００３５】次いで、図２に示すように受銑口１７に、
この受銑口１７とほぼ同じ口径の仕切り筒９３を装着す
る。その後、炉体１１と上部型枠１５との間に、炉体１
１の両排気口１１ｂより高アルミナ質の上部耐火物築造
用の不定形耐火物Ｂを流し込む。流し込みが終了したら
排気口１１ｂを蓋止めし、不定形耐火物Ｂを前記不定形
耐火物Ａの場合と同様に養生固化させる。その後、上下
部型枠１４、１５およびコニカル型枠１６を分解して撤
去する作業が行われる。以下、その分解撤去作業を詳細
に説明する。まず、上部型枠１５の作業を説明する。Next, as shown in FIG.
A partition tube 93 having substantially the same diameter as the receiving port 17 is mounted. Thereafter, the furnace body 1 is placed between the furnace body 11 and the upper mold 15.
An amorphous refractory B for building a high alumina upper refractory is poured from both exhaust ports 11b. When the pouring is completed, the exhaust port 11b is closed, and the refractory B is cured and solidified in the same manner as the refractory A. Thereafter, an operation of disassembling and removing the upper and lower molds 14, 15 and the conical mold 16 is performed. Hereinafter, the disassembly and removal operation will be described in detail. First, the operation of the upper formwork 15 will be described.
【００３６】図８、９に示すように、予めボルト７６を
介して、引き剥がし部材７５を端部用金具６２に連結し
ておく。最初に、上段分割上パネル２８の撤去を行う。
上部型枠組付撤去台車４６を上部型枠１５の所定位置ま
で移動させ、テレスコシリンダ６０により上昇された引
き剥がし部材７５の長孔７５ａと、上段分割上パネル２
８の裏面の孔とを合致させてボルト連結し、その後、テ
レスコシリンダ６０のロッド６１を引き込ませることに
より、養生固化された不定形耐火物Ｂの内周面から、上
段分割上パネル２８を引き剥がす。その後、この剥がさ
れた上段分割上パネル２８は、上部型枠組付撤去台車４
６により炉体１１の中央部まで搬送され、受銑口１７か
ら炉外に撤去される。As shown in FIGS. 8 and 9, the peeling member 75 is connected to the end fitting 62 in advance via a bolt 76. First, the upper divided upper panel 28 is removed.
The upper form assembling and removing carriage 46 is moved to a predetermined position of the upper form 15, and the long hole 75a of the peeling member 75 raised by the telescopic cylinder 60 and the upper divided upper panel 2
8, the upper panel 28 is pulled from the inner peripheral surface of the cured and solidified refractory B by pulling in the rod 61 of the telescopic cylinder 60. Peel off. After that, the peeled upper division upper panel 28 is attached to the upper formwork assembly removal cart 4.
By 6, it is conveyed to the central part of the furnace body 11, and is removed out of the furnace from the receiving port 17.
【００３７】次に、左右側下中段分割上パネル２６、２
７の撤去時には、ボルト７６を抜いて端部用金具６２か
ら引き剥がし部材７５を取り外し、次いで、これらのパ
ネル２６、２７の内面に設けられたワイヤ掛止部と、左
右側サイドシリンダ６７、６８の押し引き金具６９との
間にワイヤを掛けわたす。そして、左右側サイドシリン
ダ６７、６８の突出状態のロッド６７ａ、６８ａを引き
込ませることにより、左右側下中段分割上パネル２６、
２７を内側へ引っ張って、予め上側の仮連結バー３０に
より緩めに連結されたこれらのパネル２６、２７の下部
を内方へ回動させて、元のつぼみ状に収縮させることに
より、養生固化された不定形耐火物Ｂの内周面から、左
右側のパネル２６、２７を引き剥がす。その後、この剥
がされた左右側下中段分割上パネル２６、２７は、運び
込まれた状態のまま、上部型枠組付撤去台車４６に載せ
て炉体１１の中央部へ運び出され、受銑口１７より炉外
へ撤去される。なお、作業空間の狭い炉体１１の最端部
近くのパネル２６′、２８′およびコニカル型枠１６
は、適宜手作業を加えて分解撤去される。次に、図２を
参照して、下部型枠１４の撤去方法を説明する。Next, the left and right lower middle divided upper panels 26, 2
7 is removed, the bolt 76 is removed to remove the peeling member 75 from the end fitting 62, and then the wire hooking portions provided on the inner surfaces of these panels 26, 27 and the left and right side cylinders 67, 68 And a wire between the push-pull fitting 69. Then, the left and right side side cylinders 67 and 68 are protruded and the rods 67a and 68a in the protruding state are retracted, so that the left and right lower middle divided upper panel 26,
By pulling 27 inward, the lower portions of these panels 26 and 27 previously loosely connected by the upper temporary connecting bar 30 are rotated inward to shrink to the original bud shape, thereby curing and solidifying. The left and right panels 26 and 27 are peeled off from the inner peripheral surface of the irregular shaped refractory B. Thereafter, the left and right lower middle divided upper panels 26 and 27 which have been peeled off are placed on the upper formwork assembly removal truck 46 and carried out to the central portion of the furnace body 11 while being carried in, and are carried out from the receiving port 17. Removed outside the furnace. The panels 26 'and 28' near the end of the furnace body 11 having a narrow working space and the conical form 16
Is disassembled and removed with appropriate manual work. Next, a method of removing the lower formwork 14 will be described with reference to FIG.
【００３８】図２に示すように、下部型枠１４を分解し
て撤去する際には、順次その他の下パネル１９を引き上
げて分解する。分解された下パネル１９は同じくクレー
ン４４により次々と炉外に引き上げられる。なお、下パ
ネル１９の撤去時には、再び炉体１１の排気口１１ｂに
昇降装置を取り付けて、分割主ガイドレール５０とダミ
ーレール４１だけからなるリニアガイド４２を炉体１１
内に吊下し、リニアガイド４２に沿って下パネル１９を
移動させる。これにより、下パネル１９の運搬が容易に
なる。最後に、受銑口１７に装着された仕切り筒９３を
取り外す。As shown in FIG. 2, when disassembling and removing the lower formwork 14, the other lower panel 19 is sequentially pulled up and disassembled. The disassembled lower panel 19 is pulled out of the furnace one after another by the crane 44. When the lower panel 19 is removed, an elevating device is attached to the exhaust port 11b of the furnace body 11 again, and the linear guide 42 consisting only of the divided main guide rail 50 and the dummy rail 41 is attached to the furnace body 11.
And the lower panel 19 is moved along the linear guide 42. This facilitates transportation of the lower panel 19. Finally, the partition tube 93 mounted on the receiving port 17 is removed.
【００３９】次いで、図１に示すように、受銑口１７お
よびその周囲に受銑口型枠１８を配置し、炉体１１と受
銑口型枠１８との間に電鋳マグクロ質の受銑口耐火物用
の不定形耐火物Ｃを流し込んで養生固化させる。その
後、受銑口型枠１８を撤去してから、炉体１１内に図外
のバーナを取り込み、不定形耐火物Ａ〜Ｃの加熱乾燥を
行うことにより上下部耐火物および受銑口耐火物を同時
に築造する。Next, as shown in FIG. 1, a metal receiving port 17 and a metal receiving port form 18 are arranged around the metal receiving port 17, and an electroformed magnesium alloy is placed between the furnace body 11 and the metal receiving port form 18. An irregular-shaped refractory C for a pigtail refractory is poured and cured and solidified. Thereafter, after removing the pig hole form 18, a burner (not shown) is taken into the furnace body 11, and the amorphous refractories A to C are heated and dried, so that the upper and lower refractories and the pig mouth refractory are formed. At the same time.
【００４０】このように、下部型枠１４上の台車レール
２４に沿って移動する上部型枠組付撤去台車４６を用い
て、上部型枠１５を構成する上中下段分割上パネル２
６、２７、２８の組付解体、炉内搬送、組み付け、分
解、撤去を行うようにしたので、上部型枠１５を構成す
る上パネル２５の組付解体が安全かつ容易になり、その
作業時間も短縮できる。特に、左右側下中段分割上パネ
ル２６、２７は、つぼみ状態のままで、炉内外への出し
入れと炉内における搬送が行われるので、これらのパネ
ル２６、２７の取り扱いが容易になる。As described above, the upper and lower divided upper panels 2 constituting the upper form 15 are formed by using the upper form assembling and removing carriage 46 which moves along the carriage rail 24 on the lower form 14.
The assembly, disassembly, assembling, disassembly, disassembly and disassembly of 6, 27 and 28 are performed, so that the assembly and disassembly of the upper panel 25 constituting the upper formwork 15 is safe and easy, and the work time Can also be shortened. In particular, since the left and right lower middle divided upper panels 26 and 27 are moved in and out of the furnace and conveyed in the furnace while the bud state is maintained, the handling of these panels 26 and 27 is facilitated.
【００４１】また、油圧式の左右側サイドシリンダ６
７、６８により左右側下中段分割上パネル２６、２７を
それぞれ横方向へ移動させ、また油圧式のテレスコシリ
ンダ６０により上段分割上パネル２８を昇降させて、上
パネル２５に解体撤去を行うようにしたので、ボタン操
作により簡単にこれらの作業ができ、しかも型枠撤去時
の養生固化された不定形耐火物Ｂの内周面から、各上パ
ネル２６、２７、２８の引き剥がしを、大きな力で的確
に行うことができる。The hydraulic left and right side cylinders 6
7 and 68 to move the left and right lower middle divided upper panels 26 and 27 in the lateral direction, respectively, and raise and lower the upper divided upper panel 28 by the hydraulic telescopic cylinder 60 so that the upper panel 25 is dismantled and removed. Therefore, these operations can be easily performed by operating buttons, and the upper panels 26, 27, and 28 can be peeled off from the inner peripheral surface of the cured refractory B at the time of removing the formwork with a large force. And can be performed accurately.
【００４２】以上、本発明の実施例を説明したが、本発
明はこの実施例に限定されるものではなく、要旨を逸脱
しない範囲での設計変更や動作の変更があっても本発明
に含まれる。例えば、実施例では、上部型枠を周方向に
５枚のパネルに分割したが、これに限定しなくても、左
側分割上パネル、右側分割上パネルおよび上側分割上パ
ネルの３枚に分割したり、または４枚もしくは６枚以上
に分割してもよい。また、実施例では、油圧式の昇降シ
リンダとしてテレスコシリンダを採用したが、これに限
定しなくても、通常の油圧シリンダでもよい。さらに、
実施例では、上部型枠組付撤去台車として、手押し式の
台車を例に説明したが、これに限定しなくても自走式の
ものでもよい。Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and even if there is a design change or a change in operation without departing from the gist, the present invention is included in the present invention. It is. For example, in the embodiment, the upper formwork is divided into five panels in the circumferential direction. However, the present invention is not limited to this, and the upper formwork is divided into three panels: a left upper panel, a right upper panel, and an upper upper panel. Or may be divided into four or six or more sheets. Further, in the embodiment, the telescopic cylinder is adopted as the hydraulic lifting cylinder, but the invention is not limited thereto, and a normal hydraulic cylinder may be used. further,
In the embodiment, the push-type trolley has been described as an example of the upper formwork-assembled removal trolley, but the present invention is not limited to this and may be a self-propelled trolley.
【００４３】[0043]
【発明の効果】請求項１、２記載の混銑車炉体耐火物築
造用上部型枠組付撤去方法または該方法に用いられる上
部型枠組付撤去台車は、このように下部型枠上の台車レ
ールに沿って移動する上部型枠組付撤去台車を用いて、
上部型枠を構成する左右上側分割上パネルの組付解体、
炉内搬送、組み付け、分解、撤去を行うようにしたの
で、上部型枠の組付解体が安全かつ容易になり、その作
業時間も短縮できる。このうち、請求項１の混銑車炉体
耐火物築造用上部型枠組付撤去方法では、左右側分割上
パネルをつぼみ状に仮連結して、炉内外への出し入れと
炉内における搬送を行うようにしたので、これらのパネ
ルの取り扱いが容易になる。According to the first and second aspects of the present invention, the method of removing the upper formwork assembly for refractory building of the furnace of the mixed iron car body or the removing formwork assembly removal truck used in the method is as described above. Using an upper formwork assembly removal cart that moves along
Assembling and disassembly of the upper left and right split upper panels that constitute the upper formwork,
Since the transfer, assembling, disassembly, and removal in the furnace are performed, the disassembly and disassembly of the upper formwork can be performed safely and easily, and the work time can be reduced. Of these, in the method of removing the upper formwork assembly for the construction of a refractory for a mixed iron car furnace body according to the first aspect, the upper panels on the left and right sides are temporarily connected in a bud-like manner so that they can be taken in and out of the furnace and transported in the furnace. Therefore, the handling of these panels becomes easy.
【００４４】また、請求項２記載の上部型枠組付撤去台
車においては、油圧式の左右側サイドシリンダにより左
右側分割上パネルをそれぞれ横方向へ移動させ、また油
圧式の昇降シリンダにより上側分割上パネルを昇降させ
るようにしたので、ボタン操作により簡単にこれらの作
業ができ、型枠撤去時の養生固化された不定形耐火物の
内周面から、各パネルの引き剥がしを、大きな力で的確
に行うことができる。Further, in the removal truck with the upper formwork assembled according to the second aspect, the left and right divided upper panels are moved laterally by the hydraulic left and right side cylinders, and the upper divided by the hydraulic lift cylinder. Since the panels are raised and lowered, these operations can be easily performed by pressing buttons, and the peeling of each panel from the inner peripheral surface of the cured and solidified refractory when removing the formwork can be accurately performed with great force. Can be done.
【図１】本発明の一実施例に係る混銑車炉体耐火物築造
用上部型枠組付撤去方法が適用された炉体の型枠組み付
け状態を示す断面図である。FIG. 1 is a cross-sectional view showing a state in which a furnace body has a formwork to which a method of assembling and removing an upper formwork for building a refractory for a mixed iron furnace body according to an embodiment of the present invention has been applied.
【図２】下部型枠の組み付け作業状態を示す炉体の要部
縦断面図である。FIG. 2 is a vertical sectional view of a main part of the furnace body, showing a state of assembling a lower formwork.
【図３】本発明の一実施例に係る上部型枠組付撤去台車
の炉体中央部における上部型枠組付撤去作業状態を示す
側面図である。FIG. 3 is a side view showing an upper formwork assembling and removing operation state at a central portion of the furnace body of the upper formwork assembling and removing carriage according to one embodiment of the present invention.
【図４】上部型枠組付撤去台車の炉体中央部における上
部型枠組付撤去作業状態を示す正面図である。FIG. 4 is a front view showing an upper formwork assembling and removing operation state at the center of the furnace body of the upper formwork assembling and removing vehicle.
【図５】上部型枠組付撤去台車の炉体中央部における上
部型枠組付撤去作業状態を示す平面図である。FIG. 5 is a plan view showing an upper formwork assembling and removing operation state at the center of the furnace body of the upper formwork assembling and removing vehicle.
【図６】上部型枠組付撤去台車のリニアガイドとの掛止
構造を示す要部拡大正面図である。FIG. 6 is an enlarged front view of a main part showing a structure for retaining the upper formwork-attached removal carriage with a linear guide.
【図７】上部型枠組付撤去台車の炉体端部における上部
型枠組付撤去作業状態を示す側面図である。FIG. 7 is a side view showing an upper formwork assembly removal work state at an end of the furnace body of the upper formwork assembly removal cart.
【図８】上段分割上パネルの引き剥がし部材の使用状態
を示す拡大正面図である。FIG. 8 is an enlarged front view showing a use state of a peeling member of the upper divided upper panel.
【図９】引き剥がし部材の使用状態を示す拡大側面図で
ある。FIG. 9 is an enlarged side view showing a use state of the peeling member.
１１ 炉体 １１ａ 鉄皮 １１ｂ 排気口 １２ パーマネント煉瓦 １３ 型枠 １４ 下部型枠 １５ 上部型枠 １６ コニカル型枠 １７ 受銑口 １８ 受銑口型枠 １９ 下パネル ２０ 上側フレーム ２１ 作業床 ２２ 下パネル ２４ 台車レール ２５ 上パネル ２６ 下段分割上パネル ２６′ 下段分割上パネル ２７ 中段分割上パネル ２８ 上段分割上パネル ２８′ 上段分割上パネル ３０ 仮連結バー ３１ 仮連結バー ３９ 型枠組み付け装置 ４０ 主ガイドレール ４１ ダミーレール ４２ リニアガイド ４３ 吊下装置 ４４ クレーン ４６ 上部型枠組付撤去台車 ４８ レール掛止金具 ４９ 先端部レール ５０Ａ 分割主ガイドレール ５０Ｂ 分割主ガイドレール ５０ａ 下側受け板 ５０ｂ 上側受け板 ５０ｃ 連結板 ５２ 昇降ロッド ５３ 連結部材 ５４ 台車本体 ５４ａ 突出部 ５４ｂ ストッパ ５５ 車輪 ６０ テレスコシリンダ ６１ ロッド ６２ 端部用金具 ６３ 中央部用金具 ６４ ガイドリング ６５ ガイドシャフト ６６ 台部 ６７ 左側サイドシリンダ ６７ａ ロッド ６８ 右側サイドシリンダ ６８ａ ロッド ６９ 押し引き金具 ７０ 回り止めシャフト ７１ 油圧タンク ７２ 油圧制御盤 ７３ バルブスタンド ７４ プレート ７５ 引き剥がし部材 ７５ａ 長孔 ７６ ボルト ９３ 仕切り筒 DESCRIPTION OF SYMBOLS 11 Furnace body 11a Iron shell 11b Exhaust port 12 Permanent brick 13 Formwork 14 Lower formwork 15 Upper formwork 16 Conical formwork 17 Inlet port 18 Inlet port formwork 19 Lower panel 20 Upper frame 21 Work floor 22 Lower panel 24 Bogie rail 25 Upper panel 26 Lower split upper panel 26 'Lower split upper panel 27 Middle split upper panel 28 Upper split upper panel 28' Upper split upper panel 30 Temporary connecting bar 31 Temporary connecting bar 39 Molding device 40 Main guide rail 41 Dummy rail 42 Linear guide 43 Suspension device 44 Crane 46 Upper formwork assembling removal truck 48 Rail hooking fitting 49 Tip rail 50A Split main guide rail 50B Split main guide rail 50a Lower receiving plate 50b Upper receiving plate 50c Connecting plate 52 Elevating rod 53 Connecting member 54 Bogie body 4a Projecting portion 54b Stopper 55 Wheel 60 Telescopic cylinder 61 Rod 62 End fitting 63 Central fitting 64 Guide ring 65 Guide shaft 66 Base 67 Left side cylinder 67a Rod 68 Right side cylinder 68a Rod 69 Push / pull fitting 70 Detent Shaft 71 Hydraulic tank 72 Hydraulic control panel 73 Valve stand 74 Plate 75 Peeling member 75a Slot 76 Bolt 93 Partition cylinder
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松本 正治 福岡県北九州市戸畑区飛幡町１番１号 新日本製鐵株式会社 八幡製鐵所内 (72)発明者 土井 章弘 福岡県北九州市八幡東区山王１丁目９番 10号 九築工業株式会社内 (72)発明者 小田 浩志 福岡県北九州市八幡東区山王１丁目９番 10号 九築工業株式会社内 (56)参考文献 特開 平６−330131（ＪＰ，Ａ) 特開 平６−287619（ＪＰ，Ａ) 特開 平６−108135（ＪＰ，Ａ) 特開 平１−179888（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C21C 1/06 F27D 1/16 B61D 5/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoji Matsumoto 1-1, Hibata-cho, Tobata-ku, Kitakyushu-shi, Fukuoka Prefecture Inside Nippon Steel Corporation Yawata Works (72) Inventor Akihiro Doi Hachiman-ku, Kitakyushu-shi, Fukuoka 1-9-10 Sanno, Kuzuki Kogyo Co., Ltd. (72) Inventor Hiroshi Oda 1-9-10 Sanno, Yahata Higashi-ku, Kitakyushu-shi, Fukuoka Pref. 330131 (JP, A) JP-A-6-287619 (JP, A) JP-A-6-108135 (JP, A) JP-A-1-179888 (JP, A) (58) Fields investigated (Int. 7 , DB name) C21C 1/06 F27D 1/16 B61D 5/00
Claims (2)
状の下部型枠上に敷設された台車レールに、前記炉体の
上部中央の受銑口から搬入された上部型枠組付撤去台車
を載置する工程と、 多数枚の上パネルからなる上部型枠を、周方向に向かっ
て左側分割上パネル、右側分割上パネルおよび上側分割
上パネルに分割し、そのうちの該左右側分割上パネルを
つぼみ状に仮連結して、前記受銑口から前記上部型枠組
付撤去台車に搭載する工程と、 該台車を所定位置まで移動させて、前期左右側分割上パ
ネルの仮連結を解除し、前記上部型枠組付撤去台車によ
り、前記左右側分割上パネルをそれぞれの組付位置まで
外側へ横移動させて前記下部型枠上に組み付ける工程
と、 前記受銑口から上側分割上パネルを前記台車に搭載する
工程と、 該台車を所定位置まで移動させて、前記上部型枠組付撤
去台車により前記上側分割上パネルを組付位置まで上昇
させた後、前記左右側分割上パネルの上部間に組み付け
る工程と、 型枠撤去時に、前記上部型枠組付撤去台車を用いて、養
生固化された不定形耐火物の内周面から上側分割上パネ
ルを剥離し、前記受銑口より炉外へ撤去する工程と、 前記上部型枠組付撤去台車により、前記養生固化された
不定形耐火物の内周面から左右側分割上パネルを剥離し
て、搬入時と同様に該左右側分割上パネルをつぼみ状に
仮連結してから、前記受銑口より炉外へ撤去する工程と
を備えたことを特徴とする混銑車炉体耐火物築造用上部
型枠組付撤去方法。1. A removal truck mounted with an upper formwork which is carried into a bogie rail laid on a lower formwork having an arc-shaped cross section assembled in a lower part of a furnace body from an upper central receiving port of the furnace body. And dividing the upper formwork composed of a number of upper panels into a left divided upper panel, a right divided upper panel, and an upper divided upper panel in the circumferential direction, and the left and right divided upper panels among them. Temporarily connecting in the shape of a bud, mounting the upper formwork-assembled removal trolley from the receiving hole, and moving the trolley to a predetermined position to release the temporary connection of the left and right split upper panels in the previous period, A step of laterally moving the left and right divided upper panels outward to respective assembling positions and assembling them on the lower form by the upper formwork assembling trolley; and Mounting the truck on the After moving to the fixed position and raising the upper divided upper panel to the assembled position by the upper formwork assembling trolley, assembling between the upper portions of the left and right divided upper panels, when removing the formwork, Removing the upper split upper panel from the inner peripheral surface of the cured and solidified irregular-shaped refractory using an upper formwork removal cart, and removing the upper formwork out of the furnace from the receiving port, and removing the upper formwork assembly The upper left and right divided upper panels are peeled off from the inner peripheral surface of the cured and solidified refractory by a trolley, and the left and right divided upper panels are temporarily connected in a bud-like manner as at the time of carrying in. A method for removing an upper formwork for building a refractory for a mixed-iron car furnace body, comprising a step of removing the pig iron from the furnace to the outside of the furnace.
断面円弧状に下部型枠上に敷設された台車レールを走行
する台車本体を有し、周方向に向かって、左側部分割上
パネルと、右側部分割上パネルと、上部分割上パネルと
に分割される多数枚の上部パネルからなる上部型枠を、
炉体の上部内に組付撤去する上部型枠組付撤去台車であ
って、 前記台車本体の上部に、前記左右側分割上パネルをそれ
ぞれ横方向へ移動させる左右側サイドシリンダを設ける
と共に、前記上部分割上パネルを昇降させる昇降シリン
ダを設けたことを特徴とする上部型枠組付撤去台車。2. A bogie main body which runs on a bogie rail laid on a lower formwork in an arc-shaped cross-section assembled in a lower part of a furnace of an iron-mixed car, and has a left-side divided portion in a circumferential direction. An upper formwork consisting of a number of upper panels divided into a panel, a right upper division upper panel, and an upper division upper panel,
An upper formwork assembling and dismounting truck for assembling and removing inside an upper part of a furnace body, wherein a left and right side cylinder for horizontally moving the left and right split upper panels is provided at an upper portion of the bogie main body. An upper formwork assembling trolley, comprising a lifting cylinder for raising and lowering the divided upper panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18887594A JP3144991B2 (en) | 1994-07-18 | 1994-07-18 | Method for removing upper formwork for building refractory for furnace of mixed iron car body and removing formwork with upper formwork used for the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18887594A JP3144991B2 (en) | 1994-07-18 | 1994-07-18 | Method for removing upper formwork for building refractory for furnace of mixed iron car body and removing formwork with upper formwork used for the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0827511A JPH0827511A (en) | 1996-01-30 |
| JP3144991B2 true JP3144991B2 (en) | 2001-03-12 |
Family
ID=16231408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18887594A Expired - Fee Related JP3144991B2 (en) | 1994-07-18 | 1994-07-18 | Method for removing upper formwork for building refractory for furnace of mixed iron car body and removing formwork with upper formwork used for the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3144991B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102010054B1 (en) * | 2017-11-16 | 2019-08-12 | 주식회사 포스코 | Apparatus for changing disc suspension of converter vessel |
-
1994
- 1994-07-18 JP JP18887594A patent/JP3144991B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827511A (en) | 1996-01-30 |
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