JPH05118768A - Spray device for blast furnace wall - Google Patents
Spray device for blast furnace wallInfo
- Publication number
- JPH05118768A JPH05118768A JP28479091A JP28479091A JPH05118768A JP H05118768 A JPH05118768 A JP H05118768A JP 28479091 A JP28479091 A JP 28479091A JP 28479091 A JP28479091 A JP 28479091A JP H05118768 A JPH05118768 A JP H05118768A
- Authority
- JP
- Japan
- Prior art keywords
- spraying
- suspension
- furnace
- spray
- spraying machine
- 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.)
- Granted
Links
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、高炉その他の炉内壁面
の吹付け補修施工に際して使用する吹付け機の吊り構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging structure of a spraying machine used for spraying and repairing a wall surface of a furnace such as a blast furnace.
【０００２】[0002]
【従来の技術】従来、例えば高炉内壁面の吹付け補修施
工に際して使用する吹付け機の吊り構造は、実開昭６３
−１６８７９７号公報、特公昭６１−４８８５号公報、
特開昭６２−１７０４０６号公報、特開昭６３−２０７
９８６号公報等に記載されているように、吹付け機本体
を炉の断面中心に懸垂位置させる必要性から、炉頂部の
中心に相対して設けられた２つの開孔からそれぞれ引出
した１５〜２０ｍの２本の懸索体によって、吹付け機を
旋回可能に吊り下げた構造を有する。そして、吹付け機
のノズルからの毎分１００ｋｇ程度の耐火材料を吹き出
しながら連続旋回させて炉内壁面に耐火材を吹付けて補
修施工する。2. Description of the Related Art Conventionally, for example, the suspension structure of a spraying machine used for spraying and repairing the inner wall surface of a blast furnace has been disclosed in Japanese Utility Model Publication 63
-168797, Japanese Patent Publication No. 61-4885,
JP-A-62-170406, JP-A-63-207
As described in Japanese Unexamined Patent Publication No. 986, etc., it is necessary to suspend the spraying machine main body at the center of the cross section of the furnace, and therefore 15 to 15 drawn out from the two holes provided facing the center of the furnace top, respectively. It has a structure in which the spraying machine is suspended by two 20 m suspensions so that the spraying machine can swing. Then, about 100 kg of refractory material per minute is blown from the nozzle of the spraying machine and continuously swirled to spray the refractory material on the inner wall of the furnace for repair work.
【０００３】[0003]
【発明が解決しようとする課題】この吹付け機自体、本
体重量が５００〜１０００ｋｇ程度あり、これが吊り下
げられ、そのノズルからの耐火材料の回転吹付けによっ
て揺動し、この揺動幅が大きくなれば、施工面の振れと
いう問題を引き起こし、均一な吹付け施工体の形成に大
きな支障となる。The spraying machine itself has a main body weight of about 500 to 1000 kg, which is suspended and swung by the rotary spraying of the refractory material from its nozzle, and the swinging width is large. In that case, the problem of runout of the construction surface is caused, which is a great obstacle to the formation of a uniform sprayed construction body.
【０００４】この吹付け装置の振れ幅は耐火材料の吹き
出し速度により影響を受け、耐火物吹き出し量が毎分１
００ｋｇ程度の耐火材料の吹き出しに際しては１００〜
３００ｍｍ程度であり、この程度の振れ幅では大きな支
障とはならないが、例えば、毎分２００ｋｇのレベルま
で増加させた場合、この振れ幅は５００〜１０００ｍｍ
程度へ増し、吹付け施工体の形成に大きな支障となる。
このため、かかる吊り構造を有する吹付け装置の耐火物
吹付け能力は毎分１００ｋｇレベルでの施工に抑えら
れ、これが、吹付け施工の高速化を制限し、また、吹き
付ける耐火材料の特性に合った吹付け速度が適用できな
いという問題がある。The swing width of this spraying device is affected by the blowing speed of the refractory material, and the blowing amount of the refractory material is 1 per minute.
When blowing out about 100 kg of refractory material, 100 ~
It is about 300 mm, and such a swing width does not cause a big problem, but when the swing width is increased to a level of 200 kg per minute, the swing width is 500 to 1000 mm.
It increases to a certain extent, which is a great obstacle to the formation of the sprayed structure.
For this reason, the spraying ability of the spraying device having such a hanging structure can be suppressed to the construction at the level of 100 kg / min, which restricts the speeding up of the spraying construction and suits the characteristics of the sprayed refractory material. There is a problem that the spraying speed cannot be applied.
【０００５】この懸垂吹付け機からの耐火材の吹付けに
よる揺動を防止するための手段として、吹付け機本体を
外部から支持すること、懸索体の数を増すこと等が考え
られる。しかしながら、吹付け機本体を外部から支持す
ることは、懸垂吹付け機自体の回転構造が複雑になり、
また、施工終了後の高炉操業再開に当たって支持機構の
除去に支障を来すことになり実用性に乏しい。また、懸
索体の数を増す対策は懸索体の吊り角度が大きく取れる
位置関係の場合は有効であるが、高炉の炉内下部位置の
吹付けのようにこの吊り角度が大きく取れず、しかも、
吹付け機本体は補修必要箇所に応じて連続的に高さ位置
を変更する操作を伴う場合には、支持構造が複雑となり
有効な手段とはなり難い。As means for preventing the swinging of the refractory material from the suspension spraying machine by spraying, it is conceivable to support the spraying machine main body from the outside or increase the number of suspension members. However, supporting the spraying machine body from the outside complicates the rotating structure of the suspension spraying machine itself,
In addition, when the blast furnace operation is restarted after the construction is completed, the removal of the support mechanism will be hindered, which is not practical. Also, measures to increase the number of suspensions are effective in the case of a positional relationship where the suspension angle of the suspension can be made large, but this suspension angle can not be made large like spraying at the lower position in the furnace of the blast furnace, Moreover,
In the case where the spraying machine main body involves an operation of continuously changing the height position according to the repair required portion, the supporting structure becomes complicated and it is difficult to be an effective means.
【０００６】本発明の目的は、吊り構造を有する吹付け
装置において、吹付け時の耐火材料速度を増加させた場
合でも、懸垂した吹付け機の揺れの増大を防止できる比
較的簡単な構造を提供することにある。An object of the present invention is to provide a spraying device having a suspending structure with a relatively simple structure capable of preventing an increase in swing of a suspended spraying machine even when the speed of the refractory material during spraying is increased. To provide.
【０００７】[0007]
【課題を解決するための手段】本発明に係る炉頂部から
吊り下げられた吹付け機の振れ防止のための吊り構造
は、炉頂部の中心を対称にして設けた複数の開口を通し
て炉外からそれぞれ懸索体を支持吊り下げ、同複数の懸
索体によって吹付け機を回動自在に取付けてなる高炉炉
内壁面吹付け装置において、前記懸索体の中少なくとも
１本を一定荷重を負荷した状態で懸索したことを特徴と
する。According to the present invention, there is provided a suspension structure for preventing vibration of a spraying machine suspended from the furnace top, from the outside of the furnace through a plurality of openings symmetrical with the center of the furnace top. In a blast furnace wall surface spraying device in which a suspension body is suspended and supported, and a spraying machine is rotatably attached by the plurality of suspension bodies, a constant load is applied to at least one of the suspension bodies. It is characterized in that it was suspended in a suspended state.
【０００８】前記懸索体に一定荷重を負荷する方式とし
ては、懸索体に引張り力を付与する任意の方式が採用で
きるが、吹付け機を吊り下げた懸索体の中の一本を炉頂
部に設けた滑車装置を介して一定荷重のバランスを吊り
下げて一定の引張力を与える構造が最も簡便な方式であ
る。As a method of applying a constant load to the suspension body, any method of applying a tensile force to the suspension body can be adopted, but one of the suspension bodies in which the spraying machine is suspended is adopted. The simplest method is a structure in which a constant load balance is suspended through a pulley device provided at the top of the furnace to apply a constant tensile force.
【０００９】本発明に係る吹付け機の吊り構造は、吹付
け機本体が吹付け操作の進行に伴って懸索高さを連続的
に任意に変更可能な構造に適用できる。The suspension structure of the spraying machine according to the present invention can be applied to a structure in which the spraying machine main body can continuously and arbitrarily change the suspension height as the spraying operation progresses.
【００１０】また、この吊り構造は断面が円形であり、
懸索距離が長い高炉シャフト部吹付け補修に際して有効
であるが、高炉以外の他の炉にも適用できる。The suspension structure has a circular cross section,
It is effective for repairing the blast furnace shaft part with a long suspension distance by spraying, but it can also be applied to other furnaces other than the blast furnace.
【００１１】[0011]
【作用】断面が基本的に円形をなす炉内壁面の吹付け補
修を炉体上部に付設された開口を利用して炉内に吹付け
機を挿入し、吹付け機を開口を通して炉外から炉体断面
中心位置に複数の懸索体により吊り下げ、吹付け機本体
に回転自在に取り付けられたノズルを通じて、補修箇所
にノズルの回転によって選択的に吹付け施工するに当た
って、耐火材料の吹き出し反力による吹付け機の振れの
開始と拡大を、懸索体の中の少なくとも一本を吹付け方
向に引張ることによって防止する。[Operation] For spray repair of the inner wall surface of the furnace whose cross section is basically circular, insert the spraying machine into the furnace by using the opening attached to the upper part of the furnace body, and from the outside of the furnace through the opening of the spraying machine. In order to selectively spray the repaired part by rotating the nozzle through the nozzle rotatably attached to the main body of the spraying machine and rotatably attached to the main body of the furnace through the nozzle rotatably attached, The initiation and expansion of the blast of the spraying machine due to force is prevented by pulling at least one of the suspensions in the spraying direction.
【００１２】[0012]
【実施例】図１は、本発明を高炉の内壁面の吹付け施工
機に適用した例を示す。1 shows an example in which the present invention is applied to a spraying machine for the inner wall surface of a blast furnace.
【００１３】同図において、１は高炉の炉体を示し、こ
の高炉頂部の中心からの同心状の円周に設けた開口を通
して炉外から懸索体２，３，４が吊り下げられ、そのそ
れぞれの先端は吹付け機５を支持懸垂している。６は吹
付け機５の下面に回動自在に取付けられた吹付けノズル
であって、懸索体２，３，４の昇降と吹付け機５に内蔵
された回動機構によって炉内壁を螺旋状に吹付け施工す
る。上記懸索体２，３，４の中の一本の懸索体４は、カ
ウンターウエイト機構７によって常に一定荷重が負荷さ
れ、吹付けノズル６の耐火材の吹付け方向に常に引張り
力が作用するようになっている。なお、８はそれぞれ吹
付けノズル６に吹付け用耐火材、混合用水および吹付け
用空気を送り込むためのパイプを示す。In the figure, reference numeral 1 denotes a furnace body of a blast furnace, and suspension bodies 2, 3, 4 are suspended from the outside of the furnace through an opening provided in a concentric circumference from the center of the top of the blast furnace. The tip of each suspends the spraying machine 5. Reference numeral 6 denotes a spray nozzle rotatably attached to the lower surface of the spraying machine 5, which lifts and lowers the suspension bodies 2, 3 and 4 and spirals the inner wall of the furnace by a rotating mechanism incorporated in the spraying machine 5. Spray and apply. One suspension body 4 among the suspension bodies 2, 3, 4 is always loaded with a constant load by the counterweight mechanism 7, and a tensile force is always applied in the spraying direction of the refractory material of the spray nozzle 6. It is supposed to do. Reference numeral 8 denotes a pipe for feeding the spraying refractory material, the mixing water and the spraying air to the spraying nozzle 6, respectively.
【００１４】図２は、このバランス用懸索体４による揺
れ防止の原理を説明するための図であって、吹付けノズ
ル６を有する吹付け機５が回動と昇降を停止して揺動し
ている状態を示す。FIG. 2 is a view for explaining the principle of the swinging prevention by the balance suspension body 4, in which the spraying machine 5 having the spraying nozzle 6 stops swinging and ascending / descending and swings. It shows the state.
【００１５】これらの図に示すように、仮にそれぞれの
支持点が吹付け機５の吹付けノズル６の吹付け方向に対
して略直角位置にある懸索体２，３のみによって懸垂さ
れている場合を想定すると、吹付けノズル６からの吹付
け材の噴出によって、吹付け機５はその反力によって、
矢印Ａに示す方向に揺動しようとする。この際、カウン
ターウエイト機構７によって常に一定荷重が負荷された
バランス用懸索体４は、吹付けノズル６の耐火材噴出方
向に矢印Ｂに示す引張力が作用し、このバランス用懸索
体４の引張力によって、吹付けノズル６から耐火材の噴
出による吹付け機５の初期揺れ力による揺動を防止す
る。As shown in these drawings, each support point is temporarily suspended only by the suspension members 2 and 3 which are located at a position substantially perpendicular to the spraying direction of the spraying nozzle 6 of the spraying machine 5. Assuming a case, the spraying machine 5 is ejected from the spraying nozzle 6 and the spraying machine 5 is
Attempt to swing in the direction indicated by arrow A. At this time, the balance suspension 4 to which a constant load is always applied by the counterweight mechanism 7 is subjected to the tensile force shown by the arrow B in the spraying direction of the refractory material of the spray nozzle 6, and the balance suspension 4 With the pulling force of 1, the rocking due to the initial rocking force of the spraying machine 5 due to the ejection of the refractory material from the spraying nozzle 6 is prevented.
【００１６】[0016]
【発明の効果】本発明の炉内内壁面吹付け装置によっ
て、以下の効果を奏することができる。The following effects can be obtained by the in-furnace inner wall surface spraying device of the present invention.
【００１７】（１）懸垂された内壁施工用の吹付け機の
揺れを防止できるので、施工処理を均質に且つ効率的に
行うことができる。(1) Since it is possible to prevent the hanging sprayer for constructing the inner wall from swinging, the construction process can be carried out uniformly and efficiently.
【００１８】（２）揺れ防止機構そのものが、通常、２
本の懸索体による懸垂に単に一本のバランス用懸索体を
付加しただけのものであるので、その構造がきわめて簡
単である。(2) The shaking prevention mechanism itself is usually 2
The structure is extremely simple because only one balancing suspension is added to the suspension by the suspension of books.
【００１９】（３）補修施工を正確、迅速に行うことが
できるとともに、施工後の撤去が簡単であって、炉の操
業再開に支障を来すことがない。(3) The repair work can be carried out accurately and quickly, and the removal after the work is easy, so that the operation of the furnace will not be restarted.
【００２０】（４）この構造の採用により、吹付け能力
の拡大が可能になり、炉補修時間の短縮ができる。(4) By adopting this structure, the spraying capacity can be expanded and the furnace repair time can be shortened.
【００２１】（５）吹付け施工体の適正な形成により、
補修効果の持続性が改善できる。(5) By the proper formation of the spraying work body,
The sustainability of the repair effect can be improved.
【図１】 本発明を高炉の内壁補修用に適用した例をそ
の断面によって示す。FIG. 1 is a sectional view showing an example in which the present invention is applied to repair an inner wall of a blast furnace.
【図２】 本発明に係るバランス用懸索体の作動を説明
するための概略図である。FIG. 2 is a schematic view for explaining the operation of the balance suspension body according to the present invention.
１ 高炉炉体 ２ 懸索体 ３ 懸索体 ４ バランス用懸索体 ５ 吹付け機 ６ 吹付けノズル ７ カウンターウェイト機構 ８ パイプ 1 Blast furnace furnace body 2 Suspension body 3 Suspension body 4 Balancing suspension body 5 Spraying machine 6 Spraying nozzle 7 Counterweight mechanism 8 Pipe
【手続補正書】[Procedure amendment]
【提出日】平成４年６月２４日[Submission date] June 24, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Name of item to be corrected] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 高炉炉内壁面吹付け装置Title of Invention Blast furnace inner wall surface spraying device
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、高炉その他の炉内壁面
の吹付け補修施工に際して使用する吹付け機の吊り構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging structure of a spraying machine used for spraying and repairing a wall surface of a furnace such as a blast furnace.
【０００２】[0002]
【従来の技術】従来、例えば高炉内壁面の吹付け補修施
工に際して使用する吹付け機の吊り構造は、実開昭６３
−１６８７９７号公報、特公昭６１−４８８５号公報、
特開昭６２−１７０４０６号公報、特開昭６３−２０７
９８６号公報等に記載されているように、吹付け機本体
を炉の断面中心に懸垂位置させる必要性から、炉頂部の
中心に相対して設けられた２つの開孔からそれぞれ引出
した１５〜２０ｍの２本の懸索体によって、吹付け機を
旋回可能に吊り下げた構造を有する。そして、吹付け機
のノズルからの毎分１００ｋｇ程度の耐火材料を吹き出
しながら連続旋回させて炉内壁面に耐火材を吹付けて補
修施工する。また特公平１−４６７９６号公報には、同
種の吹付け機が示されており、ノズル部のバランスをと
るためにウエイトを取り付けられている例が示されてい
る。 2. Description of the Related Art Conventionally, for example, the suspension structure of a spraying machine used for spraying and repairing the inner wall surface of a blast furnace has been disclosed in Japanese Utility Model Publication 63
-168797, Japanese Patent Publication No. 61-4885,
JP-A-62-170406, JP-A-63-207
As described in Japanese Unexamined Patent Publication No. 986, etc., it is necessary to suspend the spraying machine main body at the center of the cross section of the furnace, and therefore 15 to 15 drawn out from the two holes provided facing the center of the furnace top, respectively. It has a structure in which the spraying machine is suspended by two 20 m suspensions so that the spraying machine can swing. Then, about 100 kg of refractory material per minute is blown from the nozzle of the spraying machine and continuously swirled to spray the refractory material on the inner wall of the furnace for repair work. In addition, Japanese Patent Publication No. 1-46796 discloses the same.
Seed sprayer is shown to balance the nozzle section.
An example where weights are attached for
It
【０００３】[0003]
【発明が解決しようとする課題】この吹付け機自体、本
体重量が５００〜１０００ｋｇ程度あり、これが吊り下
げられ、そのノズルからの耐火材料の回転吹付けによっ
て揺動し、この揺動幅が大きくなれば、施工面の振れと
いう問題を引き起こし、均一な吹付け施工体の形成に大
きな支障となる。The spraying machine itself has a main body weight of about 500 to 1000 kg, which is suspended and swung by the rotary spraying of the refractory material from its nozzle, and the swinging width is large. In that case, the problem of runout of the construction surface is caused, which is a great obstacle to the formation of a uniform sprayed construction body.
【０００４】この吹付け装置の振れ幅は耐火材料の吹き
出し速度により影響を受け、耐火物吹き出し量が毎分１
００ｋｇ程度の耐火材料の吹き出しに際しては１００〜
３００ｍｍ程度であり、この程度の振れ幅では大きな支
障とはならないが、例えば、毎分２００ｋｇのレベルま
で増加させた場合、この振れ幅は５００〜１０００ｍｍ
程度へ増し、吹付け施工体の形成に大きな支障となる。
このため、かかる吊り構造を有する吹付け装置の耐火物
吹付け能力は毎分１００ｋｇレベルでの施工に抑えら
れ、これが、吹付け施工の高速化を制限し、また、吹き
付ける耐火材料の特性に合った吹付け速度が適用できな
いという問題がある。The swing width of this spraying device is affected by the blowing speed of the refractory material, and the blowing amount of the refractory material is 1 per minute.
When blowing out about 100 kg of refractory material, 100 ~
It is about 300 mm, and such a swing width does not cause a big problem, but when the swing width is increased to a level of 200 kg per minute, the swing width is 500 to 1000 mm.
It increases to a certain extent, which is a great obstacle to the formation of the sprayed structure.
For this reason, the spraying ability of the spraying device having such a hanging structure can be suppressed to the construction at the level of 100 kg / min, which restricts the speeding up of the spraying construction and suits the characteristics of the sprayed refractory material. There is a problem that the spraying speed cannot be applied.
【０００５】この懸垂吹付け機からの耐火材の吹付けに
よる揺動を防止するための手段として、吹付け機本体を
外部から支持すること、懸索体の数を増すこと等が考え
られる。しかしながら、吹付け機本体を外部から支持す
ることは、懸垂吹付け機自体の回転構造が複雑になり、
また、施工終了後の高炉操業再開に当たって支持機構の
除去に支障を来すことになり実用性に乏しい。また、懸
索体の数を増す対策は懸索体の吊り角度が大きく取れる
位置関係の場合は有効であるが、高炉の炉内下部位置の
吹付けのようにこの吊り角度が大きく取れず、しかも、
吹付け機本体は補修必要箇所に応じて連続的に高さ位置
を変更する操作を伴う場合には、支持構造が複雑となり
有効な手段とはなり難い。As means for preventing the swinging of the refractory material from the suspension spraying machine by spraying, it is conceivable to support the spraying machine main body from the outside or increase the number of suspension members. However, supporting the spraying machine body from the outside complicates the rotating structure of the suspension spraying machine itself,
In addition, when the blast furnace operation is restarted after the construction is completed, the removal of the support mechanism will be hindered, which is not practical. Also, measures to increase the number of suspensions are effective in the case of a positional relationship where the suspension angle of the suspension can be made large, but this suspension angle can not be made large like spraying at the lower position in the furnace of the blast furnace, Moreover,
In the case where the spraying machine main body involves an operation of continuously changing the height position according to the repair required portion, the supporting structure becomes complicated and it is difficult to be an effective means.
【０００６】本発明の目的は、吊り構造を有する吹付け
装置において、吹付け時の耐火材料の噴射速度を増減さ
せた場合でも、懸垂した吹付け機の振れの増大を防止で
きる比較的簡単な構造を提供することにある。It is an object of the present invention to prevent an increase in runout of a suspended spraying machine in a spraying device having a suspension structure even when the spraying speed of the refractory material during spraying is increased or decreased. It is to provide a relatively simple structure that can be done.
【０００７】[0007]
【課題を解決するための手段】本発明に係る炉頂部から
吊り下げられた吹付け機の振れ防止のための吊り構造
は、炉頂部の中心を対称にして設けた複数の開口を通し
て炉外からそれぞれ懸索体を支持吊り下げ、同複数の懸
索体によって吹付け機を回動自在に取付けてなる高炉炉
内壁面吹付け装置において、前記懸索体の中少なくとも
１本を一定荷重を負荷した状態で懸索したことを特徴と
する。According to the present invention, there is provided a suspension structure for preventing vibration of a spraying machine suspended from the furnace top, from the outside of the furnace through a plurality of openings symmetrical with the center of the furnace top. In a blast furnace wall surface spraying device in which a suspension body is suspended and supported, and a spraying machine is rotatably attached by the plurality of suspension bodies, a constant load is applied to at least one of the suspension bodies. It is characterized in that it was suspended in a suspended state.
【０００８】前記懸索体に一定荷重を負荷する方式とし
ては、懸索体に引張り力を付与する任意の方式が採用で
きるが、吹付け機を吊り下げた懸索体の中の一本を炉頂
部に設けた滑車装置を介して一定荷重のバランスを吊り
下げて一定の引張力を与える構造が最も簡便な方式であ
る。As a method of applying a constant load to the suspension body, any method of applying a tensile force to the suspension body can be adopted, but one of the suspension bodies in which the spraying machine is suspended is adopted. The simplest method is a structure in which a constant load balance is suspended through a pulley device provided at the top of the furnace to apply a constant tensile force.
【０００９】本発明に係る吹付け機の吊り構造は、吹付
け機本体が吹付け操作の進行に伴って懸索高さを連続的
に任意に変更可能な構造に適用できる。The suspension structure of the spraying machine according to the present invention can be applied to a structure in which the spraying machine main body can continuously and arbitrarily change the suspension height as the spraying operation progresses.
【００１０】また、この吊り構造は断面が円形であり、
懸索距離が長い高炉シャフト部吹付け補修に際して有効
であるが、高炉以外の他の炉にも適用できる。The suspension structure has a circular cross section,
It is effective for repairing the blast furnace shaft part with a long suspension distance by spraying, but it can also be applied to other furnaces other than the blast furnace.
【００１１】[0011]
【作用】振れ制御作用としてカウンターウエイト機構に
よって、振れようとするエネルギーをカウンターウエイ
トによって吸収することができる。すなわち、断面が基
本的に円形をなす炉内壁面の吹付け補修を炉体上部に付
設された開口を利用して炉内に吹付け機を挿入し、吹付
け機を開口を通して炉外から炉体断面中心位置に複数の
懸索体により吊り下げ、吹付け機本体に回転自在に取り
付けられたノズルを通じて、補修箇所にノズルの回転に
よって選択的に吹付け施工するに当たって、耐火材料の
吹き出し反力による吹付け機の振れの開始と拡大を、懸
索体の中の少なくとも一本を吹付け方向に引張ることに
よって防止する。[Operation] Counterweight mechanism as shake control function
Therefore, the energy that is about to swing is
Can be absorbed by In other words, for spray repair of the inner wall surface of the furnace whose cross section is basically circular, insert a spraying machine into the furnace by using the opening attached to the upper part of the furnace body, and through the opening of the spraying machine from the outside of the furnace to the furnace. The reaction force of the refractory material is hung by the multiple suspensions at the center of the body cross section, and the nozzle is rotatably attached to the spraying machine body. The start-up and expansion of the spraying machine due to is prevented by pulling at least one of the suspensions in the spraying direction.
【００１２】[0012]
【実施例】図１は、本発明を高炉の内壁面の吹付け施工
機に適用した例を示す。1 shows an example in which the present invention is applied to a spraying machine for the inner wall surface of a blast furnace.
【００１３】同図において、１は高炉の炉体を示し、こ
の高炉頂部の中心からの同心状の円周に設けた開口を通
して炉外から懸索体２，３，４が吊り下げられ、そのそ
れぞれの先端は吹付け機５を支持懸垂している。６は吹
付け機５の下面に回動自在に取付けられた吹付けノズル
であって、懸索体２，３，４の昇降と吹付け機５に内蔵
された回動機構によって炉内壁を螺旋状に吹付け施工す
る。上記懸索体２，３，４の中の一本の懸索体４は、カ
ウンターウエイト機構７によって常に一定荷重が負荷さ
れ、この負荷方法は上記懸索体２，３と直交する方向に
常に引張り力が作用するようになっている。なお、８は
それぞれ吹付けノズル６に吹付け用耐火材、混合用水お
よび吹付け用空気を送り込むためのパイプを示す。In the figure, reference numeral 1 denotes a furnace body of a blast furnace, and suspension bodies 2, 3, 4 are suspended from the outside of the furnace through an opening provided in a concentric circumference from the center of the top of the blast furnace. The tip of each suspends the spraying machine 5. Reference numeral 6 denotes a spray nozzle rotatably attached to the lower surface of the spraying machine 5, which lifts and lowers the suspension bodies 2, 3 and 4 and spirals the inner wall of the furnace by a rotating mechanism incorporated in the spraying machine 5. Spray and apply. One of the suspension bodies 2, 3, 4 is always loaded with a constant load by the counterweight mechanism 7, and this loading method is always performed in the direction orthogonal to the suspension bodies 2, 3. Tensile force is applied. Reference numeral 8 denotes a pipe for feeding the spraying refractory material, the mixing water and the spraying air to the spraying nozzle 6, respectively.
【００１４】図２は、このバランス用懸索体４による振
れ防止の原理を説明するための図であって、吹付けノズ
ル６を有する吹付け機５が回動と昇降を停止して振れて
いる状態を示し、図３は図２の平面図を示す。 FIG. 2 shows the vibration by the balancing suspension body 4.
Is a diagram for explaining the principle of prevention, shows a state in which the spray device 5 having a spray nozzle 6 are <br/> swings stops the elevating and rotating, 3 2 FIG.
【００１５】懸索体２，３の吹付け機５への取付け位置
は、中心点を通る１８０°の角度を持っている。そして
バランス用懸索体４は、それと直交する位置に吹付け機
５へ取付けられている。そして、懸索体２，３の高炉へ
の取付け位置は、バランス懸索体４が取付けられた位置
と反対側に引張られるように吊り下げられている。これ
らの図に示すように、仮にそれぞれの支持点が吹付け機
５の吹付けノズル６の吹付け方向に対して略直角位置に
ある懸索体２，３のみによって懸垂されている場合を想
定すると、吹付けノズル６からの吹付け材の噴出によっ
て、吹付け機５はその反力によって、矢印Ｂに示す方向
に振れようとする。この際、カウンターウエイト機構７
によって常に一定荷重が負荷されたバランス用懸索体４
は、吹付けノズル６の耐火材噴出方向に矢印Ａに示す引
張力が作用し、このバランス用懸索体４の引張力によっ
て、吹付けノズル６から耐火材の噴出による吹付け機５
の初期振れ力による振れを防止する。 Mounting position of the suspension members 2, 3 to the spraying machine 5
Has an angle of 180 ° through the center point. And
The suspension 4 for balance is sprayed at a position orthogonal to it.
It is attached to 5. And to the blast furnace of the suspension body 2 and 3
The mounting position of is the position where the balance suspension body 4 is mounted.
It is hung so that it can be pulled to the opposite side. As shown in these drawings, it is assumed that the respective support points are suspended only by the suspension bodies 2 and 3 which are at positions substantially perpendicular to the spraying direction of the spray nozzle 6 of the spraying machine 5. Then, the spraying material is jetted from the spraying nozzle 6, and the spraying machine 5 is driven by the reaction force in the direction indicated by the arrow B.
And it shakes so on. At this time, the counterweight mechanism 7
Balance suspension 4 which is always loaded with a constant load by
The tensile force shown by arrow A acts on the spraying direction of the refractory material from the spray nozzle 6, and the tensile force of the balancing suspension body 4 causes the spraying machine 5 to spray the refractory material from the spray nozzle 6.
To prevent runout due to the initial runout force .
【００１６】すなわち、振れ制御作用としてカウンター
ウエイト機構によって、振れようとするエネルギーをカ
ウンターウエイトによって吸収することができる。 That is, a counter is used as a shake control action.
The weight mechanism controls the energy to swing.
Can be absorbed by unterweight.
【００１７】[0017]
【発明の効果】本発明の炉内内壁面吹付け装置によっ
て、以下の効果を奏することができる。The following effects can be obtained by the in-furnace inner wall surface spraying device of the present invention.
【００１８】（１）懸垂された内壁施工用の吹付け機の
振れを防止できるので、施工処理を均質に且つ効率的に
行うことができる。(1) of a spraying machine for construction of suspended inner walls
Since the shake can be prevented, the construction process can be performed uniformly and efficiently.
【００１９】（２）振れ防止機構そのものが、通常、２
本の懸索体による懸垂に単に一本のバランス用懸索体を
付加しただけのものであるので、その構造がきわめて簡
単である。(2) The shake prevention mechanism itself is usually 2
The structure is extremely simple because only one balancing suspension is added to the suspension by the suspension of books.
【００２０】（３）補修施工を正確、迅速に行うことが
できるとともに、施工後の撤去が簡単であって、炉の操
業再開に支障を来すことがない。(3) The repair work can be carried out accurately and quickly, and the removal after the work is easy, and it does not hinder the resumption of the operation of the furnace.
【００２１】（４）この構造の採用により、吹付け能力
の拡大が可能になり、炉補修時間の短縮ができる。(4) By adopting this structure, the spraying capacity can be expanded and the furnace repair time can be shortened.
【００２２】（５）吹付け施工体の適正な形成により、
補修効果の持続性が改善できる。(5) By the proper formation of the sprayed construction body,
The sustainability of the repair effect can be improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】 本発明を高炉の内壁補修用に適用した例をそ
の断面によって示す。FIG. 1 is a sectional view showing an example in which the present invention is applied to repair an inner wall of a blast furnace.
【図２】 本発明に係るバランス用懸索体の作動を説明
するための概略図である。FIG. 2 is a schematic view for explaining the operation of the balance suspension body according to the present invention.
【図３】 図２の平面図を示す。 FIG. 3 shows a plan view of FIG.
【符号の説明】 １ 高炉炉体 ２ 懸索体 ３ 懸索体 ４ バランス用懸索体 ５ 吹付け機 ６ 吹付けノズル ７ カウンターウェイト機構 ８ パイプ[Explanation of Codes] 1 Blast furnace furnace body 2 Suspension body 3 Suspension body 4 Balancing suspension body 5 Spraying machine 6 Spraying nozzle 7 Counterweight mechanism 8 Pipe
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図３[Name of item to be corrected] Figure 3
【補正方法】追加[Correction method] Added
【補正内容】[Correction content]
【図３】 [Figure 3]
フロントページの続き (72)発明者 内田 良彦 千葉県木更津市築地７番地１ 黒崎窯業株 式会社木更津工場内 (72)発明者 小島 昭 千葉県君津市君津１番地 新日本製鐵株式 会社君津製鐵所内 (72)発明者 野村 光男 千葉県君津市君津１番地 新日本製鐵株式 会社君津製鐵所内Front page continuation (72) Inventor Yoshihiko Uchida 7-1 Tsukiji, Kisarazu-shi, Chiba Kurosaki Ceramics Co., Ltd. Kisarazu factory (72) Inventor Akira Kojima Kimitsu, Chiba Pref. In-house (72) Inventor Mitsuo Nomura 1 Kimitsu, Kimitsu-shi, Chiba Nippon Steel Stock Company Kimitsu Works
Claims (1)
開口を通して炉外から吊り下げた懸索体によって回動自
在に吊り下げた吹付け機を有する炉内壁面吹付け装置に
おいて、前記懸索体の中の少なくとも１本を一定荷重を
負荷したバランス用懸索体とした高炉炉内壁面吹付け装
置。1. A furnace wall surface spraying apparatus having a spraying machine rotatably suspended by a suspension body suspended from the outside of a furnace through a plurality of openings symmetrically provided at the center of the furnace top, A blast furnace inner wall surface spraying device in which at least one of the suspension members is a suspension member for balancing with a constant load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3284790A JP2583706B2 (en) | 1991-10-30 | 1991-10-30 | Blast furnace inner wall spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3284790A JP2583706B2 (en) | 1991-10-30 | 1991-10-30 | Blast furnace inner wall spraying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05118768A true JPH05118768A (en) | 1993-05-14 |
| JP2583706B2 JP2583706B2 (en) | 1997-02-19 |
Family
ID=17683058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3284790A Expired - Lifetime JP2583706B2 (en) | 1991-10-30 | 1991-10-30 | Blast furnace inner wall spraying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583706B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368267B1 (en) * | 2000-12-18 | 2003-01-24 | 주식회사 포스코 | apparatus for spraying castable to wall of furnace |
| CN108220515A (en) * | 2018-03-01 | 2018-06-29 | 东北大学 | A kind of vertical two-part pulverized coal injection in blast furnace method |
| CN108265146A (en) * | 2018-03-01 | 2018-07-10 | 东北大学 | The vertical apparatus of gas fluid distrbution in a kind of improvement blast furnace |
| CN108265141A (en) * | 2018-03-01 | 2018-07-10 | 东北大学 | A kind of vertical two-part blast-furnace coal injection device |
-
1991
- 1991-10-30 JP JP3284790A patent/JP2583706B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100368267B1 (en) * | 2000-12-18 | 2003-01-24 | 주식회사 포스코 | apparatus for spraying castable to wall of furnace |
| CN108220515A (en) * | 2018-03-01 | 2018-06-29 | 东北大学 | A kind of vertical two-part pulverized coal injection in blast furnace method |
| CN108265146A (en) * | 2018-03-01 | 2018-07-10 | 东北大学 | The vertical apparatus of gas fluid distrbution in a kind of improvement blast furnace |
| CN108265141A (en) * | 2018-03-01 | 2018-07-10 | 东北大学 | A kind of vertical two-part blast-furnace coal injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2583706B2 (en) | 1997-02-19 |
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