JPH06145745A - Device for dismantling trough and method therefor - Google Patents
Device for dismantling trough and method thereforInfo
- Publication number
- JPH06145745A JPH06145745A JP32228492A JP32228492A JPH06145745A JP H06145745 A JPH06145745 A JP H06145745A JP 32228492 A JP32228492 A JP 32228492A JP 32228492 A JP32228492 A JP 32228492A JP H06145745 A JPH06145745 A JP H06145745A
- Authority
- JP
- Japan
- Prior art keywords
- gutter
- refractory
- cutting
- dismantling
- abrasive jet
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1694—Breaking away the lining or removing parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/008—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising cross-beams or gantry cranes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
- F27D3/145—Runners therefor
Landscapes
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融した銑鉄及びスラ
グが通過することによって劣化した樋の内面に耐火物を
補修する作業に関するもので、特に、高炉鋳床で用いら
れている樋の解体装置及び解体方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work for repairing a refractory on an inner surface of a gutter deteriorated by passage of molten pig iron and slag, and in particular, dismantling of a gutter used in a blast furnace casting floor. The present invention relates to an apparatus and a dismantling method.
【０００２】[0002]
【従来の技術】高炉には２本以上の樋が設けられている
が、高温の銑鉄及びスラグが流れることにより、磨耗、
化学的劣化が生じる。また、出銑孔の切り替えによる冷
却の繰り返し等により、樋の内側に施工された耐火物が
著しく劣化する。この為、月に１度程度の頻度で、各樋
の内面の耐火物の解体・乾燥からなる補修整備作業が行
われている。こうした一連の作業が、従来の鋳床上に据
えつけたまま、或いは鋳床内に設けられた整備場所に樋
を一旦揚上機で運びかえた上で行われている。2. Description of the Related Art A blast furnace is provided with two or more gutters, but when hot pig iron and slag flow, they are worn out.
Chemical deterioration occurs. In addition, refractory material installed inside the gutter is significantly deteriorated due to repeated cooling due to switching of tap holes. For this reason, repairs and maintenance work, which consists of dismantling and drying the refractory material on the inner surface of each gutter, is performed about once a month. Such a series of operations are performed while being installed on the conventional casting floor, or after the gutter is once transported to the maintenance place provided in the casting floor by the hoisting machine.
【０００３】具体的には、解体作業は、ブレーカをバッ
クホーの先端に取り付け、オペレータの操作によって、
残銑や耐火物の劣化した表層部分を厚みで平均１００ｍ
ｍ、最大で２５０ｍｍ程度破砕する。解体した屑は、バ
ックホーの先端にショベルを付けかえ、バケットを用い
て排出する。この作業に係る時間と要員については、そ
れぞれ常昼作業で一日を要し、要員についてはピーク時
に６名を要する。Specifically, in dismantling work, a breaker is attached to the tip of the backhoe, and the operator operates the
The average thickness of the deteriorated surface layer of the residual iron and refractory is 100m.
Crush up to about 250 mm. The scraps dismantled are replaced with a shovel at the tip of the backhoe and discharged using a bucket. As for the time and personnel involved in this work, one day is required for each daytime work, and six personnel are required at peak hours.
【０００４】更に鋳床上で作業を行う場合、特に解体作
業では、ブレーカを用いることによる振動・騒音が発生
したり、粉塵が発生する。また、樋真上での作業である
ために、余熱による高温雰囲気条件での作業となる。ま
た、作業内容でも、解体のためのバックホーの搬入、ブ
レーカやショベルの着脱等、一連の作業機器の搬入や、
工程に応じた機器の配置、段取り等が必要である。Further, when working on the casting floor, especially in dismantling work, vibration and noise are generated and dust is generated by using a breaker. Further, since the work is performed directly above the gutter, the work is performed under a high temperature atmosphere condition due to residual heat. In addition, regarding work content, such as carrying in a backhoe for dismantling, attaching and detaching a breaker or excavator, and carrying in a series of working equipment,
Arrangement and setup of equipment according to the process are required.
【０００５】こうした作業の機械化を図る例としては、
特開昭６０−２３０９２６号公報に記載の高炉樋の解体
設備が挙げられる。係る設備では、ブレーカや仕上げ用
切削機が搭載された台車が樋に沿って設けられらたレー
ル上をウインチによって走行できるようになっており、
ブレーカーで粗削りした後、切削機で仕上げ削りをする
ことによって、高温雰囲気での重筋労働の解消を図って
いる。Examples of mechanization of such work include:
The dismantling equipment of the blast furnace gutter described in JP-A-60-230926 can be mentioned. In such equipment, a trolley equipped with a breaker and a cutting machine can be driven by a winch on a rail provided along a gutter,
After rough cutting with a breaker and finish cutting with a cutting machine, we are trying to eliminate heavy labor in a high temperature atmosphere.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら従来の技
術或いは設備では、作業が炉前で行われる為、粉塵、騒
音、高熱という劣悪な環境下で作業を強いられることに
なる。また、解体作業の場合には、バックホーの運転や
ブレーカやショベルの操作に熟練・技量を要するため、
熟練作業要員の確保が問題となる。また、施工作業の場
合には、長尺物のハンドリングや一連の機器の搬出入・
運転作業等煩雑な作業が輻輳し、経験・熟練を要した要
員が必要であった。However, in the conventional technique or equipment, since the work is performed in front of the furnace, the work is forced to be performed in a bad environment of dust, noise, and high heat. In addition, in the case of dismantling work, it requires skill and skill to operate the backhoe and operate the breaker and excavator,
Securing skilled workers is a problem. Also, in the case of construction work, handling of long objects and loading / unloading of a series of equipment
Complex work such as driving was congested, and personnel with experience and skill were required.
【０００７】そこで本発明では、初期条件設定作業を遠
隔操作で行い、監視作業を半自動化することで、作業環
境を改善し、作業機械をシステム的に配置し、熟練・技
量を必要とせず、少ない要員で作業できることを目的と
した。Therefore, in the present invention, the initial condition setting work is performed remotely, and the monitoring work is semi-automated to improve the work environment, arrange the work machine systematically, and do not require skill or skill. The purpose was to be able to work with a small number of personnel.
【０００８】[0008]
【課題を解決するための手段】本発明は、高炉の樋の耐
火物の解体作業において、少なくともアブレッシブジェ
ットを有する切断手段と、アブレッシブジェットによる
被切断能力が樋に施している耐火物に比べ著しく低い基
材を予め樋の耐火物の解体範囲の外縁に内装させてなる
切断制限手段と、切断制限手段により制限される一定量
の深さで切断し、任意の大きさに切断した耐火物を搬出
する搬出手段とを有する樋の解体装置である。DISCLOSURE OF THE INVENTION The present invention is remarkably superior to the cutting means having at least an abrasive jet and the refractory which is provided with the ability to be cut by the abrasive jet, in the dismantling work of the refractory of the gutter of the blast furnace. The cutting base is made by installing a low base material in advance on the outer edge of the dismantling range of the refractory in the gutter, and the refractory cut into an arbitrary size is cut at a certain depth limited by the cutting limit. It is a gutter dismantling device having a carry-out means for carrying out.
【０００９】また、請求項２記載の樋の解体装置は、切
断手段を樋断面プロフィールに平行及び直交する方向に
配置した複数のアブレッシブジェットから構成した樋の
解体装置である。The gutter dismantling device according to a second aspect of the invention is a gutter dismantling device comprising a plurality of abrasive jets in which the cutting means are arranged in directions parallel and orthogonal to the gutter sectional profile.
【００１０】請求項３記載の樋の解体装置は、切断手段
を樋長手方向に、或いは樋断面プロフィールに倣う方向
に走行させる樋の解体装置である。A gutter dismantling device according to a third aspect is a gutter dismantling device for causing the cutting means to travel in the gutter longitudinal direction or in a direction following the gutter cross-sectional profile.
【００１１】請求項４記載の樋の解体装置は、高炉の樋
の耐火物の解体作業において、鋳床上の樋を跨がるよう
に配置され樋に沿って設けられたレール上を走行可能な
台車或いは、鋳床上の樋を跨がるように配置されたキャ
タピラ台車を樋断面プロフィールに倣う様に樋の上下方
向、幅方向に移動可能とする移動手段と、アブレッシブ
ジェットによる切断手段及び解体後の耐火物ブロックを
樋外に搬出する搬出手段を前記台車に取りつけている樋
の解体装置である。According to a fourth aspect of the present invention, there is provided a gutter dismantling apparatus which is capable of traveling on a rail provided along the gutter, which is arranged so as to straddle a gutter on a casting floor in dismantling work of a refractory material in a gutter of a blast furnace. A trolley or a moving means that allows the caterpillar trolley placed across the gutter on the cast floor to be moved in the vertical and width directions of the gutter so as to follow the gutter section profile, and a cutting means by an abrasive jet and after dismantling. Is a dismantling device for a gutter in which a carrying-out means for carrying out the refractory block of (1) is carried on the bogie.
【００１２】更に請求項５記載の解体方法の発明は、高
炉の樋自体をアブレッシブジェットによる切断能力が樋
に施している耐火物に比べ著しく劣る基材を予め樋の耐
火物の解体範囲に内装させてなる切断制限手段を施して
製作し、高炉の樋の耐火物の解体時に、アブレッシブジ
ェットにより切断制限手段により制限される一定量の深
さで耐火物のみ切出す切断工程と、切断した耐火物を搬
出する搬出工程とを順次実行することを特徴とする樋の
解体方法である。Further, the invention of the dismantling method according to claim 5 is such that a base material which is significantly inferior to a refractory in which the gutter itself of the blast furnace has cutting ability by an abrasive jet is installed in advance in the dismantling range of the refractory of the gutter. When the refractory in the gutter of the blast furnace is dismantled, the cutting process to cut out only the refractory at a certain depth limited by the cutting limit means by the abrasive jet, and the cut refractory It is a method for dismantling a gutter, which is characterized in that a carrying-out step of carrying out an object is sequentially executed.
【００１３】[0013]
【作用】アブレッシブジェットは高圧水に研磨材を混入
させノズルから噴出させ被切断材にあて、被切断材或い
はノズルを一定速度で移動させて切断するものであり、
被切断材の材質により切断能力が異なる。例えば耐火物
とアルミナシートの例で比較すると、アルミナシートの
被切断能力が耐火物の約１／１００となる。[Function] The abrasive jet is for cutting the material to be cut or the nozzle by moving it at a constant speed, by mixing the abrasive with high pressure water and ejecting it from a nozzle.
Cutting ability varies depending on the material to be cut. For example, when the refractory and the alumina sheet are compared, the cut ability of the alumina sheet is about 1/100 of that of the refractory.
【００１４】したがって、請求項１乃至５記載の上記構
成によれば、樋内部には、予めアブレッシブジェットに
よる切断能力が樋に施している耐火物に比べ著しく劣る
切断制限手段、例えばアルミナシートの如き基材よりな
る切断制限手段を樋の解体範囲の外縁に内装している。
そこで、アブレッシブジェットにより樋を切断すると切
断制限手段の前の耐火物は容易に切断されるが、アルミ
ナシート等の基材は被切断能力が著しく低くなってお
り、アブレッシブジェットによってアルミナシートは切
断されず、切断部分は樋の耐火物の範囲のみとなり、ア
ルミナシートを殆ど損傷することなく耐火物のみの切断
が可能となる。Therefore, according to the above-mentioned structure according to the first to fifth aspects of the present invention, inside the gutter, a cutting limiting means, such as an alumina sheet, which is significantly inferior to the refractory in which the cutting ability by the abrasive jet is provided in the gutter in advance. A cutting limiting means made of a base material is provided on the outer edge of the dismantling range of the gutter.
Therefore, if the gutter is cut with an abrasive jet, the refractory in front of the cutting limiting means is easily cut, but the base material such as the alumina sheet has a significantly low ability to be cut, and the abrasive jet cuts the alumina sheet. Instead, the cutting portion is limited to the range of the refractory material of the gutter, and only the refractory material can be cut with almost no damage to the alumina sheet.
【００１５】また、アブレッシブジェットでの切断に際
し、アルミナシートが切断範囲の外縁に位置している
為、切断し過ぎたり、或いは切断が不足することなく確
実に設定範囲の切断を行うことが出来るように作用す
る。Further, when cutting with the abrasive jet, since the alumina sheet is located at the outer edge of the cutting range, it is possible to surely cut the set range without cutting too much or insufficient cutting. Act on.
【００１６】更に、アルミナシートと耐火物は材質が異
なることより、耐火物を一定の大きさに切断した場合に
は、耐火物は、アルミナシートと接する部分がアルミナ
シートから容易に剥がれ、奥の部分を切断する必要がな
い。Further, since the alumina sheet and the refractory are made of different materials, when the refractory is cut into a certain size, the part of the refractory that comes into contact with the alumina sheet is easily peeled off from the alumina sheet, and No need to cut parts.
【００１７】即ち、従来、樋の脇部の切断において、鉛
直方向からアブレッシブジェットを作用させることによ
り、樋の奥行き部分の切断は可能であるが、アブレッシ
ブジェットによる水平方向の切断が困難であるため、樋
の底部の切断は容易ではなかった。そこで、本発明で提
案したように耐火物中にアルミナシート等を内装させる
ことで、容易に耐火物をブロック状態として解体するこ
とが可能となり、解体作業能率を向上することが出来
る。なお、アルミナシートを樋の脇部にも内装した場合
には、耐火物の鉛直方向における切断の作業を省略出来
る。That is, conventionally, when cutting the side part of the gutter, it is possible to cut the deep part of the gutter by acting an abrasive jet from the vertical direction, but it is difficult to cut the gutter in the horizontal direction by the abrasive jet. , Cutting the bottom of the gutter was not easy. Therefore, by incorporating an alumina sheet or the like in the refractory as proposed in the present invention, the refractory can be easily disassembled in a block state, and the dismantling work efficiency can be improved. When the alumina sheet is also installed inside the gutter, the work of cutting the refractory in the vertical direction can be omitted.
【００１８】また、アブレッシブジェットは高圧水流を
利用する切断であり、切断に使用した噴流は切断境面を
沿うので、係る切断作業は樋の冷却途上であっても可能
であり、粉塵の発生の防止を図ることが出来るので、作
業環境を良好に維持しながなら切断作業が行える。した
がって、作業者は熟練を要しなくても耐火物のみの切断
が可能になる。さらに、アルミナシートを再使用するこ
とが出来るので、省資源化に貢献できる。Further, since the abrasive jet is cutting using a high-pressure water stream, and the jet flow used for cutting is along the cutting boundary surface, such cutting work can be performed even while cooling the gutter, and dust is not generated. Since it is possible to prevent it, cutting work can be performed if the work environment is kept good. Therefore, the worker can cut only the refractory material without requiring skill. Further, since the alumina sheet can be reused, it can contribute to resource saving.
【００１９】請求項２乃至４に記載の発明では、複数の
アブレッシブジェットよりなる切断手段を樋断面プロフ
ィールに平行及び直交する方向に配置していること、或
いは、切断手段を樋長手方向に、或いは樋断面プロフィ
ールに倣う方向に走行させることにより、搬出し易い形
や大きさでの耐火物の切出しが可能であり、高炉鋳床で
の樋の補修であっても確実な作業を行うことが出来る。In the invention described in claims 2 to 4, the cutting means composed of a plurality of abrasive jets is arranged in the direction parallel and orthogonal to the gutter section profile, or the cutting means is arranged in the gutter longitudinal direction, or By running in a direction that follows the gutter cross-sectional profile, it is possible to cut out refractories in a shape and size that can be easily carried out, and reliable work can be performed even when repairing a gutter in the blast furnace casting floor. .
【００２０】[0020]
【実施例】以下に、本発明の実施例を図面に基づいて説
明する。図１は、本発明に係る樋解体装置に用いる、耐
火物の切断装置の一実施例を示す断面説明図であり、図
２は、図１の装置を走行させた時の説明図である。樋１
を有する高炉の鋳床２面に、樋１を挟むように平行に走
行レール３が設けられている。台車４は、前記樋１を跨
ぐように走行レール３上を走行用モータ５の駆動力で走
行可能となっている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional explanatory view showing an embodiment of a refractory cutting device used in a gutter disassembling device according to the present invention, and FIG. 2 is an explanatory diagram when the device of FIG. 1 is run. Gutter 1
A traveling rail 3 is provided in parallel with the casting floor 2 of the blast furnace having the gutter 1 so as to sandwich the gutter 1. The trolley 4 is capable of traveling on the traveling rail 3 by the driving force of the traveling motor 5 so as to straddle the gutter 1.
【００２１】台車４には、横行用レール６が走行レール
３と直角方向に設けられており、横行用レール６上を横
行用モータ７により横行可能な吊下体支持台車８が載置
されている。A traverse rail 6 is provided on the carriage 4 in a direction perpendicular to the traveling rail 3, and a suspension support truck 8 which can traverse on the traverse rail 6 by a traverse motor 7 is placed. .
【００２２】吊下体支持台車８には、昇降用モータ９に
より上下昇降可能な吊下体１０を設け、吊下体１０の先
端に旋回モータ１１で駆動される旋回ギア１２により旋
回可能となっているアブレッシブジェットのノズル支持
体１３が取りつけられている。A suspension body 10 is provided with a suspension body 10 which can be vertically moved up and down by a lifting motor 9, and the tip end of the suspension body 10 can be swung by a swivel gear 12 driven by a swivel motor 11. A jet nozzle support 13 is mounted.
【００２３】ノズル支持体１３には、樋１の側面のプロ
フィール面に沿って、樋１の側面を切断するための左右
対称な３対のアブレッシブジェットのノズル１４と、樋
１の底部を切断する１対のアブレッシブジェットのノズ
ル１４とが設けられている。The nozzle support 13 is provided with three pairs of symmetrical jet nozzles 14 for cutting the side surface of the gutter 1 along the profile surface of the side surface of the gutter 1 and the bottom portion of the gutter 1. A pair of abrasive jet nozzles 14 are provided.
【００２４】図中１５は、樋１の底部に内装されている
アルミナシートであり、アルミナシート１５は実施例で
は、厚さ５ｍｍのものを使用している。また、１６は樋
１に残存する残銑である。In the figure, reference numeral 15 is an alumina sheet installed inside the bottom of the gutter 1. In the embodiment, the alumina sheet 15 has a thickness of 5 mm. Further, 16 is the residual iron remaining in the gutter 1.
【００２５】本実施例では、圧力３２００ｋｇ／ｃｍ2
の水流をノズル１４から噴射させて、樋１の耐火物Ａを
切断する。この時の設定水圧における耐火物Ａのアブレ
ッシブジェットによる切断量は、アブレッシブジェット
の移動速度３０００ｍｍ／分に対し１０ｍｍである。こ
れに対しアルミナシート１５のアブレッシブジェットに
よる切断量は、アブレッシブジェットの移動速度２０ｍ
ｍ／分に対し１０ｍｍであり、アルミナシート１５の被
切断能力が耐火物の１／１５０である。In this embodiment, the pressure is 3200 kg / cm 2.
The water flow is sprayed from the nozzle 14 to cut the refractory A in the gutter 1. The cutting amount of the refractory A by the abrasive jet at the set water pressure at this time is 10 mm with respect to the moving speed of the abrasive jet of 3000 mm / min. On the other hand, the cutting amount of the alumina sheet 15 by the abrasive jet is 20 m of the moving speed of the abrasive jet.
It is 10 mm with respect to m / min, and the ability of the alumina sheet 15 to be cut is 1/150 of the refractory material.
【００２６】したがって、適切な移動速度を選べば、耐
火物Ａの底の部分のアブレッシブジェットによる切断の
先端部分が、アルミナシート１５に達してもアルミナシ
ート１５を切断することがなく、アブレッシブジェット
の切断先端がアルミナシート１５で終了する。例えば、
移動速度を３００ｍｍ／分とすると、耐火物Ａは１００
ｍｍ切断できるが、アルミナシート１５は切断されな
い。Therefore, if an appropriate moving speed is selected, even if the tip portion of the bottom portion of the refractory material A, which is cut by the abrasive jet, reaches the alumina sheet 15, the alumina sheet 15 is not cut and the abrasive jet of the abrasive jet is not cut. The cutting tip ends with the alumina sheet 15. For example,
If the moving speed is 300 mm / min, refractory A has 100
mm can be cut, but the alumina sheet 15 is not cut.
【００２７】上記実施例では、高炉鋳床での樋１の解体
であることより、アブレッシブジェットのノズル１４を
移動させながら切断を行うものであり、ノズル１４を有
する走行用モータ５で台車４を走行レール３上を移動さ
せながら、樋１を走行方向に切断し、次いで昇降用モー
タ９を回動させて吊下体１０を上方に引き上げノズル１
４で樋１の側面を縦方向に切断し、図２の切断線１７に
示す如く樋１の側面を長方形等任意の形状に切断する。In the above embodiment, since the gutter 1 is dismantled in the blast furnace casting floor, cutting is performed while moving the nozzle 14 of the abrasive jet, and the carriage 4 is driven by the traveling motor 5 having the nozzle 14. While moving on the traveling rail 3, the gutter 1 is cut in the traveling direction, and then the raising / lowering motor 9 is rotated to pull up the hanging body 10 upward and the nozzle 1
At 4, the side surface of the gutter 1 is cut in the vertical direction, and the side surface of the gutter 1 is cut into an arbitrary shape such as a rectangle as shown by a cutting line 17 in FIG.
【００２８】耐火物Ａとアルミナシート１５とは材質が
異なり、耐火物Ａを長方形等の形状に切断した場合に
は、切断先端がアルミナシート１５に達している為、多
少耐火物Ａに応力を加えると、耐火物Ａは、アルミナシ
ートと接する部分がアルミナシートから容易に剥がれ、
奥の部分を切断する必要がなく直方体のブロックとして
搬出が可能になる。The refractory A and the alumina sheet 15 are made of different materials. When the refractory A is cut into a rectangular shape or the like, since the cutting tip reaches the alumina sheet 15, the refractory A is slightly stressed. When added, in the refractory A, the portion in contact with the alumina sheet is easily peeled off from the alumina sheet,
It is possible to carry out as a rectangular block without cutting the inner part.
【００２９】なお、上記実施例においては、樋の脇部に
はアルミナシート１５を設けていないが、これはアブレ
ッシブジェットにより鉛直方向から切断が可能だからで
ある。ただし、作業効率等を考慮し、樋１の脇部等に予
めアルミナシート１５を内装する構成としても良い。In the above embodiment, the alumina sheet 15 is not provided on the side of the gutter because it is possible to cut from the vertical direction by the abrasive jet. However, in consideration of work efficiency and the like, the alumina sheet 15 may be preliminarily provided inside the gutter 1 or the like.
【００３０】次にアブレッシブジェットにより切断し
た、耐火物Ａのブロックの搬出手段の実施例を図３、図
４で説明する。搬出装置の移動手段は、前記切断装置と
同様の構成とし、切断装置で示した符号と同一の符号を
付している。耐火物Ａの搬出手段としては、前記切断装
置のノズル１４を取りつけるノズル支持体１３の替わり
に搬出用グリップ装置１８を取りつけている。Next, an embodiment of the carry-out means for the block of the refractory A cut by the abrasive jet will be described with reference to FIGS. The moving means of the carry-out device has the same configuration as that of the cutting device, and is given the same reference numeral as that of the cutting device. As a means for carrying out the refractory material A, a carrying-out grip device 18 is attached instead of the nozzle support 13 to which the nozzle 14 of the cutting device is attached.
【００３１】搬出用グリップ装置１８は、図示はしない
が油圧或いは電動等適宜手段でアーム１９間の間隔を任
意に変更可能となっており、切断した耐火物のブロック
の大きさに対応して用いることが出来るように構成され
ている。Although not shown, the carry-out grip device 18 can be arbitrarily changed in space between the arms 19 by an appropriate means such as hydraulic pressure or electric power, and is used according to the size of the cut refractory block. It is configured to be able to.
【００３２】耐火物のブロックの搬出は、まず切断手段
により切断線１７の隙間に、アーム１９の先端をあて、
横行用モータ７を作動させ、吊下体支持台車８を移動さ
せアーム１９に耐火物のブロックをグリップする。To carry out the block of refractory material, first apply the tip of the arm 19 to the gap between the cutting lines 17 by the cutting means.
The traverse motor 7 is operated to move the suspended body supporting cart 8 to grip the refractory block on the arm 19.
【００３３】次いで昇降用モータ９を作動させ吊下体１
０を吊り上げた後、横行用モータ７を作動させ図３の二
点線の部分まで移動させて、アーム１９を開く等して、
アーム１９上の耐火物のブロックのグリップを解く。Next, the lifting motor 9 is actuated to operate the hanging body 1.
After hoisting 0, the traverse motor 7 is operated to move it to the portion indicated by the two-dotted line in FIG. 3, and the arm 19 is opened,
Ungrip the refractory block grip on the arm 19.
【００３４】耐火物の上の段の搬出作業を終えると、順
次下の段の耐火物Ａのブロックの処理を行う。なお、上
記耐火物のブロックの搬出作業に用いる搬出用グリップ
装置１８は、上記の構成に限らず、公知のロボット等適
宜手段のものを用いて使用しても良いことは当然であ
る。When the work for carrying out the upper stage of the refractory is completed, the blocks of the refractory A in the lower stage are sequentially processed. The carrying-out grip device 18 used for carrying out the refractory block is not limited to the above-mentioned configuration, and it is needless to say that a known means such as a robot may be used.
【００３５】また、上記した実施例においては、切断手
段および搬出手段を移動して解体作業を行っているが、
この構成に限らない。例えば、樋解体をオフラインで行
う場合等に、切断手段または搬出手段を固定し、樋を台
車等に載せて移動させながら、解体作業を行っても良
い。Further, in the above embodiment, the disassembling work is performed by moving the cutting means and the carry-out means.
The configuration is not limited to this. For example, when the gutter dismantling is performed offline, the dismantling work may be performed while fixing the cutting means or the carry-out means and moving the gutter on a trolley or the like.
【００３６】[0036]
【発明の効果】本発明は、上述のように構成されること
より以下のような効果を有する。 （１）アブレッシブジェットによる切断を行うことよ
り、従来の如くバックホー、ブレイカー等を使用するの
と異なり、粉塵の発生が防止出来、高炉周辺の環境悪化
を防止出来る。The present invention has the following effects by being configured as described above. (1) By cutting with an abrasive jet, unlike the conventional case where a backhoe, a breaker or the like is used, it is possible to prevent generation of dust and prevent environmental deterioration around the blast furnace.
【００３７】（２）アブレッシブジェットによる切断で
あることより、樋の被切断部分の耐火物に不要な力が加
わらず樋自体の寿命の延長につながる他、耐火物の解体
範囲は外縁がアルミナシート等の切断制限手段により設
定され、不要な部位を解体する必要がなく、耐火物の歩
留りに優れる。(2) Since the cutting is performed by the abrasive jet, unnecessary force is not applied to the refractory in the cut portion of the gutter, which leads to extension of the life of the gutter itself, and the outer edge of the refractory disassembly range is an alumina sheet. It is set by cutting restriction means such as, and it is not necessary to disassemble unnecessary parts, and the yield of refractory is excellent.
【００３８】（３）解体する耐火物は、アブレッシブジ
ェットのノズルの動きで、任意の形状、大きさで切断出
来る為、樋からの搬出作業を効率的に行える他、切断し
た耐火物のハンドリングが良好で搬出後の処理も効率的
に行える。(3) Since the refractory to be dismantled can be cut into any shape and size by the movement of the nozzle of the abrasive jet, it is possible to efficiently carry out the work from the trough and handle the cut refractory. Good quality and efficient post-delivery processing.
【００３９】（４）樋の解体及び解体した耐火物の搬出
作業を経験を必要としない作業員による監視主体の半自
動的な運転が可能であり、要員の削減が可能で、要員の
有効利用が可能である。(4) Semi-automatic operation of the monitoring subject by a worker who does not require experience in dismantling the gutter and carrying out the dismantled refractory is possible, the number of personnel can be reduced, and the effective use of personnel is possible. It is possible.
【００４０】（５）機械の操作は、作業者が遠隔で行え
ることより作業者の労働環境の改善を図る事が出来る。(5) Since the operator can remotely operate the machine, the working environment of the operator can be improved.
【００４１】（６）樋の解体作業時に樋底部に残銑が残
っていた場合であっても、この部分を避けて切断も可能
であり、残銑の処理時間を省くことが可能であり、作業
時間の短縮も図れる。(6) Even if the residual iron remains at the bottom of the gutter during the operation of dismantling the gutter, it is possible to avoid cutting this portion and cut the processing time for the residual iron. Work time can be shortened.
【００４２】（７）構成も簡易であり、従来の高炉鋳床
の樋にも適用が可能である等優れた効果を有する。(7) The structure is simple and has an excellent effect such that it can be applied to a gutter of a conventional blast furnace casting floor.
【図１】本発明に係る樋解体装置に用いる、耐火物の切
断装置の一実施例を示す断面説明図。FIG. 1 is a sectional explanatory view showing an embodiment of a refractory cutting device used in a gutter disassembling device according to the present invention.
【図２】図１の装置を走行させた時の説明図。FIG. 2 is an explanatory diagram when the device of FIG. 1 is run.
【図３】耐火物のブロックの搬出手段の実施例を示す断
面説明図。FIG. 3 is an explanatory cross-sectional view showing an embodiment of a means for carrying out a block of refractory material.
【図４】図３の中央部断面説明図。4 is a cross-sectional explanatory view of the central portion of FIG.
１ 樋 ２ 鋳床 ３ 走行レール ４ 台車 ５ 走行用モータ ６ 横行用レール ７ 横行用モータ ８ 吊下体支持台車 ９ 昇降用モータ １０ 吊下体 １１ 旋回モータ １２ 旋回ギア １３ ノズル支持体 １４ ノズル １５ アルミナシート １６ 残銑 １７ 切断線 １８ 搬出用グリップ装置 １９ アーム Ａ 耐火物 DESCRIPTION OF SYMBOLS 1 Gutter 2 Cast floor 3 Traveling rail 4 Truck 5 Traveling motor 6 Traverse rail 7 Traverse motor 8 Suspended body support truck 9 Lifting motor 10 Suspended body 11 Swivel motor 12 Swivel gear 13 Nozzle support 14 Nozzle 15 Alumina sheet 16 Residual pig iron 17 Cutting line 18 Grip device for unloading 19 Arm A Refractory
Claims (5)
る耐火物に比べ著しく低い基材を予め樋の耐火物の解体
範囲の外縁に内装させてなる切断制限手段と、 切断制限手段により制限される一定量の深さで切断し、
任意の大きさに切断した耐火物を搬出する搬出手段とを
有することを特徴とする樋の解体装置。1. In the operation of dismantling a refractory in a gutter of a blast furnace, a cutting means having at least an abrasive jet, and a base material whose cutting ability by the abrasive jet is significantly lower than that of the refractory applied to the gutter is preliminarily used in the refractory of the gutter. Cutting limiting means to be installed on the outer edge of the dismantling range, and cutting at a certain depth limited by the cutting limiting means,
An apparatus for dismantling a gutter, comprising: a carry-out means for carrying out a refractory material cut into an arbitrary size.
び直交する方向に配置した複数のアブレッシブジェット
からなることを特徴とする請求項１記載の樋の解体装
置。2. The gutter disassembling apparatus according to claim 1, wherein the cutting means comprises a plurality of abrasive jets arranged in directions parallel and orthogonal to the gutter cross-sectional profile.
プロフィールに倣う方向に走行することを特徴とする請
求項１又は２記載の樋の解体装置。3. The gutter disassembling apparatus according to claim 1, wherein the cutting means runs in the gutter longitudinal direction or in a direction following the gutter cross-sectional profile.
たレール上を走行可能な台車或いは、鋳床上の樋を跨が
るように配置されたキャタピラ台車を樋断面プロフィー
ルに倣う様に樋の上下方向、幅方向に移動可能とする移
動手段と、 アブレッシブジェットによる切断手段及び解体後の耐火
物ブロックを樋外に搬出する搬出手段を前記台車に取り
つけることを特徴とする樋の解体装置。4. In a dismantling operation of a refractory material in a gutter of a blast furnace, a trolley which is arranged so as to straddle a gutter on a cast floor and can run on a rail provided along the gutter or straddle a gutter on the cast floor. The caterpillar trolley arranged so that it can move in the vertical and width directions of the gutter following the gutter section profile, the cutting means by the abrasive jet, and the refractory block after dismantling are carried out of the gutter. An apparatus for dismantling a gutter, characterized in that the carrying-out means is attached to the trolley.
る切断能力が樋に施している耐火物に比べ著しく劣る基
材を予め樋の耐火物の解体範囲に内装させてなる切断制
限手段を施して製作し、 高炉の樋の耐火物の解体時に、アブレッシブジェットに
より切断制限手段により制限される一定量の深さで耐火
物のみ切出す切断工程と、 切断した耐火物を搬出する搬出工程とを順次実行するこ
とを特徴とする樋の解体方法。5. A blast furnace gutter itself is provided with a cutting restriction means in which a base material, which is significantly inferior to a refractory in which the cutting ability by an abrasive jet is applied to the gutter, is previously installed in the dismantling range of the grate refractory. When disassembling the refractory in the gutter of the blast furnace, the cutting process for cutting out only the refractory at a certain depth limited by the cutting limiting means by the abrasive jet and the carrying-out process for carrying out the cut refractory are sequentially executed. A method for dismantling a gutter characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32228492A JPH06145745A (en) | 1992-11-09 | 1992-11-09 | Device for dismantling trough and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32228492A JPH06145745A (en) | 1992-11-09 | 1992-11-09 | Device for dismantling trough and method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06145745A true JPH06145745A (en) | 1994-05-27 |
Family
ID=18141925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32228492A Withdrawn JPH06145745A (en) | 1992-11-09 | 1992-11-09 | Device for dismantling trough and method therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06145745A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101249057B1 (en) * | 2011-09-05 | 2013-04-01 | 주식회사 포스코 | Device for treating dust of runner of furnace |
| CN111486710A (en) * | 2020-04-27 | 2020-08-04 | 安徽工业大学 | Rotary kiln residual refractory brick breaking-in device and method capable of accurately controlling breaking-in depth |
-
1992
- 1992-11-09 JP JP32228492A patent/JPH06145745A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101249057B1 (en) * | 2011-09-05 | 2013-04-01 | 주식회사 포스코 | Device for treating dust of runner of furnace |
| CN111486710A (en) * | 2020-04-27 | 2020-08-04 | 安徽工业大学 | Rotary kiln residual refractory brick breaking-in device and method capable of accurately controlling breaking-in depth |
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