JPH0634277A - Spray method for repairing industrial kiln - Google Patents

Spray method for repairing industrial kiln

Info

Publication number
JPH0634277A
JPH0634277A JP4214790A JP21479092A JPH0634277A JP H0634277 A JPH0634277 A JP H0634277A JP 4214790 A JP4214790 A JP 4214790A JP 21479092 A JP21479092 A JP 21479092A JP H0634277 A JPH0634277 A JP H0634277A
Authority
JP
Japan
Prior art keywords
spray
spray material
state
industrial kiln
repair
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
Application number
JP4214790A
Other languages
Japanese (ja)
Other versions
JP2633146B2 (en
Inventor
Seiji Hanagiri
誠司 花桐
Koichi Nakano
耕一 中野
Hisatoshi Yasuda
尚俊 安田
Yoshinobu Kanbe
義信 神部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harima Ceramic Co Ltd
Nippon Steel Corp
Original Assignee
Harima Ceramic Co Ltd
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harima Ceramic Co Ltd, Nippon Steel Corp filed Critical Harima Ceramic Co Ltd
Priority to JP4214790A priority Critical patent/JP2633146B2/en
Publication of JPH0634277A publication Critical patent/JPH0634277A/en
Application granted granted Critical
Publication of JP2633146B2 publication Critical patent/JP2633146B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

PURPOSE:To enable easily checking in what state a spray is being shot out, in what state the spray material is being applied, etc., in using a spray in repairing an industrial kiln. CONSTITUTION:The use of a spray preparation containing a pigment or dye as a coloring additive makes it easy to discriminate, by judgment of the colors, the surface needing repair from the spray material. Therefore, it is possible to correctly check whether the spray material is mixed well with added water, the positions to which the spray material has stuck, in what state the spray material is being applied, etc., and make the repair work by spraying efficient.

Description

【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、工業窯炉の吹付け補修
において、吹付材の吐出状況、付着状況などの観察を容
易にする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 method for facilitating the observation of the discharge condition and adhesion condition of a spray material in the spray repair of an industrial kiln.

【0002】[0002]

【従来の技術】転炉、取鍋、高炉、出銑樋、混銑車、真
空脱ガス炉、タンディシュなど工業窯炉の内張りを、吹
付け補修することが行なわれている。この補修は、被補
修面が十分冷却されてから行なう冷間吹付けと、高温状
態で行なう熱間吹付けとがある。これに使用される吹付
材の材質は、耐火骨材、結合剤などが配合されている。
例えば、特公昭45−12503号公報、特公昭61−
17791号公報などに示されるとおりである。
2. Description of the Related Art The lining of industrial kilns such as converters, ladles, blast furnaces, tap gutters, mixed piggy cars, vacuum degassing furnaces and tundishes is sprayed and repaired. This repair includes cold spraying performed after the surface to be repaired is sufficiently cooled and hot spraying performed at a high temperature. The material of the spray material used for this is mixed with a fireproof aggregate, a binder and the like.
For example, Japanese Patent Publication No. 45-12503 and Japanese Patent Publication No. 61-
As disclosed in Japanese Patent No. 17791.

【0003】[0003]

【発明が解決しようとする課題】吹付材が被補修面の色
に近い場合は、ノズルから噴出する吹付材が添加水と十
分な混合した状態であるか否かの判定、あるいは吹付材
の付着位置および付着状況などの確認が容易でない。例
えば吹付材が白もしくは白に近い色の場合、熱間吹付け
では被補修面が高温のために白く発色し、吹付材との色
が被補修面の色と同化して、前記のような問題が生じや
すい。例えば転炉の熱間吹付け補修では、10m以上の
長尺の吹付ノズルが使用され、吹付け作業者の位置から
ノズルの先端までの距離が遠いことも、付着状況の観察
が容易でない原因である。
When the spray material is close to the color of the surface to be repaired, it is judged whether the spray material ejected from the nozzle is in a state of being sufficiently mixed with the added water, or the adhesion of the spray material. It is not easy to check the position and adhesion status. For example, when the sprayed material is white or a color close to white, the surface to be repaired develops white due to the high temperature during hot spraying, and the color of the sprayed material becomes the same as the color of the surface to be repaired. Problems are likely to occur. For example, in hot spray repair of converter, a long spray nozzle of 10 m or more is used, and the distance from the position of the spray operator to the tip of the nozzle is long, which makes it difficult to observe the adhesion state. is there.

【0004】[0004]

【課題を解決するための手段】本発明は、着色剤を添加
した吹付材を使用することを特徴とした吹付け補修方法
である。本発明では吹付材に着色剤を添加することによ
り、色判別によって被補修面と吹付材との区別が容易と
なる。その結果、吹付材が添加水と十分混合した状態で
あるか否か、吹付材の付着位置および付着状況などが正
確に把握できるようになり、効率的な吹付け補修が可能
となる。
SUMMARY OF THE INVENTION The present invention is a spray repair method characterized by using a spray material containing a colorant. In the present invention, by adding a colorant to the spray material, it becomes easy to distinguish the surface to be repaired from the spray material by color discrimination. As a result, it becomes possible to accurately grasp whether the spray material is in a state of being sufficiently mixed with the added water, the adhesion position of the spray material, the adhesion state, etc., and it is possible to perform efficient spray repair.

【0005】本発明で使用する吹付材に添加する着色剤
は、顔料または染料が使用できる。例えば、白色として
チタン白(TiO2)、 亜鉛華(ZnO)、鉛白〔2P
bCO3・Pb(OH)2〕がある。黒色として、カーボ
ンブラック(C)、鉄黒(Fe34)がある。赤色は、
ベンガラ(Fe23)、銀朱(HgS)、カドミウム赤
(CdS・nCdSe)である。他に、淡黄色の黄鉛
(PbCrO4)、 赤青ないし紫青の群青(2Al2
4Si3104)、青色のコバルト青(CoO・nA
23)、緑色の酸化クロム(Cr23)などがある。
The colorant added to the spray material used in the present invention may be a pigment or a dye. For example, as white, titanium white (TiO 2 ), zinc white (ZnO), lead white [2P
bCO 3 · Pb (OH) 2 ]. The black color includes carbon black (C) and iron black (Fe 3 O 4 ). Red is
Red iron oxide (Fe 2 O 3 ), silver vermillion (HgS), and cadmium red (CdS · nCdSe). In addition, light yellow chrome lead (PbCrO 4 ), red blue to purple blue ultramarine (2Al 2 N
a 4 Si 3 O 10 S 4 ), blue cobalt blue (CoO · nA)
1 2 O 3 ) and green chromium oxide (Cr 2 O 3 ).

【0006】以上は無機質の顔料であるが、有機質の顔
料でもよい。例えば、赤色のキナクリドン、ウォッチア
ングレッド、紫色のジオキサジンバイオレットなどであ
る。染料は、耐火粉末と乾粉状で混合し、その後、加水
によってすみやかに発色することが必要であり、直接染
料、酸性染料、塩基性染料、食品用色素などが、好まし
い。例えば、赤色として、ブリリアントスカーレット3
R(Brilli−ant Scarlet 3R)、
食品用赤色102号、青色はダイレクトスカイブルー5
B(Direct Sky Blue 5B)、黄色は
オーラミン(Auramine)、黒色はダイレクトフ
ァストブラックB(DirectFast Black
B)などである。
Although the above are inorganic pigments, organic pigments may be used. For example, red quinacridone, watch angred, purple dioxazine violet, and the like. It is necessary that the dye be mixed with the refractory powder in a dry powder form, and then rapidly develop a color by addition of water, and a direct dye, an acid dye, a basic dye, a food dye and the like are preferable. For example, as red, Brilliant Scarlet 3
R (Brilli-ant Scarlet 3R),
Red 102 for food, blue is direct sky blue 5
B (Direct Sky Blue 5B), yellow is Auramine, black is direct fast black B (DirectFast Black)
B) and the like.

【0007】無機質の顔料は、有機質顔料や染料に比べ
ると耐熱性に優れているので、熱間吹付けでは、無機質
の顔料の使用が好ましい。
Since inorganic pigments are superior in heat resistance to organic pigments and dyes, it is preferable to use inorganic pigments in hot spraying.

【0008】着色剤の添加量は特に限定されるものでは
ない。吹付材の色、着色剤の着色能などによって適宜調
整する。一般的には、0.01〜0.5重量%が好まし
い。少な過ぎると着色が不十分となり、多過ぎるとコス
ト高になる。
The amount of the colorant added is not particularly limited. It is appropriately adjusted depending on the color of the spray material, the coloring ability of the colorant, and the like. Generally, 0.01 to 0.5% by weight is preferable. If it is too small, coloring will be insufficient, and if it is too large, the cost will be high.

【0009】本発明で使用する吹付材は、着色剤を添加
する以外、従来材質と変わりない。耐火骨材は、例えば
マグネシアクリンカー、ドロマイトクリンカー、石灰ク
リンカー、スピネルクリンカー、アルミナクリンカーな
どを主材とする。結合剤は、アルミナセメント、ポルト
ランドセメント、リン酸塩、珪酸塩などである。結合剤
の硬化促進剤は、消石灰、生石灰、マグネシア微粉、硫
酸アルミニウム、硫酸マグネシウムなどである。
The spray material used in the present invention is the same as the conventional material except that a coloring agent is added. The refractory aggregate mainly contains, for example, magnesia clinker, dolomite clinker, lime clinker, spinel clinker, and alumina clinker. The binder is alumina cement, Portland cement, phosphate, silicate or the like. The hardening accelerator of the binder is slaked lime, quick lime, fine powder of magnesia, aluminum sulfate, magnesium sulfate and the like.

【0010】吹付け水分量の上下限の幅を広げるため、
必要により、増粘剤として粘土、デキストリン、アルギ
ン酸ソーダ、CMC、MC、PVA、セピオライト、吸
水性ポリマー、有機繊維、無機繊維、金属繊維などが添
加される。
In order to widen the upper and lower limits of the sprayed water content,
If necessary, clay, dextrin, sodium alginate, CMC, MC, PVA, sepiolite, water-absorbent polymer, organic fiber, inorganic fiber, metal fiber or the like is added as a thickener.

【0011】[0011]

【実施例】以下、本発明の実施例および比較例を示す。
表1は、各例で使用した吹付材の配合組成と、その試験
結果である。各例は、マグネシアクリンカー3〜1mm
を30重量%、マグネシアクリンカー1m以下を30重
量%、マグネシアクリンカー0.15mm以下を35重
量%、ヘキサメタリン酸ソーダ3重量%、消石灰2重量
%よりなる配合組成の吹付材に、表1のように種類の異
なる着色剤を添加したものである。
EXAMPLES Examples and comparative examples of the present invention will be shown below.
Table 1 shows the composition of the spray material used in each example and the test results. Each example is magnesia clinker 3-1mm
30% by weight, magnesia clinker 1 m or less 30% by weight, magnesia clinker 0.15 mm or less 35% by weight, sodium hexametaphosphate 3% by weight, slaked lime 2% by weight. Different types of colorants are added.

【0012】試験において、冷間吹付けは、アルミナ−
スピネル質不定形耐火物で内張りされた200t溶鋼取
鍋の吹付け補修で行った。熱間補修は、マグネシア−黒
鉛質レンガで内張りされた200t転炉の吹付け補修で
行った。 吹付材の色;添加水分と混合した後の色を調べた。 色判別による効果;吹付材の添加水との混合状態、付着
状況についての判断が容易か否かを調べた。○…容易、
△…比較的容易、×…困難の三段階で評価した。
In the test, cold spraying was carried out by using alumina-
This was done by spraying and repairing a 200-ton ladle ladle lined with spinel-shaped amorphous refractory. The hot repair was performed by spray repair of a 200t converter lined with magnesia-graphitic bricks. Color of spray material: Color after mixing with added water was examined. Effect of color discrimination: It was examined whether or not it is easy to judge the mixed state of the spray material with the added water and the adhesion state. ○ ... easy
Evaluation was made in three grades of Δ: relatively easy, ×: difficult.

【0013】表1の結果から、本発明実施例は、被補修
面が白色である場合や、また、熱間吹付のため炉内が白
く発色した状態でも、着色剤の添加により、吹付材の添
加水の混合状況、付着状況ともに容易に観察できた。
From the results shown in Table 1, in the examples of the present invention, when the surface to be repaired is white, or even when the inside of the furnace is colored white due to hot spraying, the spraying material of It was possible to easily observe both the mixed state and the attached state of the added water.

【0014】吹付ガン内の吹付材が尽きると添加水のみ
が吐出するが、吹付材の着色によって添加水のみの噴出
か否かが直ちに判別でき、吹付け終了の判断が正確に行
なうことができた。また、吹付材の付着位置および付着
状況を、吹付け作業中も常に正確かつ迅速に把握するこ
とができたことにより、補修時間の短縮、補修材損失の
低減など、吹付け補修がきわめて効率的なものとなっ
た。
When the spray material in the spray gun is exhausted, only the additional water is discharged, but it can be immediately determined by the coloring of the spray material whether or not only the additional water is ejected, and the completion of spraying can be accurately determined. It was In addition, since the position and status of the sprayed material can always be accurately and quickly ascertained during the spraying operation, the repair time can be shortened and the loss of the repaired material can be reduced. It became a thing.

【0015】これに対し、従来法に相当する比較例は、
特に熱間での吹付けにおいて、吹付材が白いため、吹付
材と被補修面の判別が容易でなく、吹付け終了の判断が
正確に行なうことができず、必要以上の吹付材を使用す
る結果となった。
On the other hand, a comparative example corresponding to the conventional method is
Especially in hot spraying, since the sprayed material is white, it is not easy to distinguish between the sprayed material and the surface to be repaired, and the end of spraying cannot be accurately determined. Use more sprayed material than necessary. It became a result.

【0016】なお、表1に示す実施例では、吹付材、被
補修面ともに白色の場合に吹付材を着色した例である
が、本発明はこれに限らず、吹付材と被補修面との色の
関係に合わせて、吹付材に添加する着色剤を変えて実施
できる。例えば、吹付材と被補修面の双方が黒色の場合
は白色の着色剤の添加、吹付材と被補修面とが茶色の場
合は黄色の着色剤の添加などである。
In the examples shown in Table 1, the sprayed material and the surface to be repaired are white, but the sprayed material is colored. However, the present invention is not limited to this, and the sprayed material and the surface to be repaired are not limited to this. The colorant added to the spray material can be changed according to the color relationship. For example, when both the sprayed material and the surface to be repaired are black, a white colorant is added, and when the sprayed material and the surface to be repaired are brown, a yellow colorant is added.

【0017】[0017]

【表1】 [Table 1]

【0018】[0018]

【発明の効果】本発明の方法は以上のとおり、工業窯炉
の吹付け補修において、吹付材に着色剤を添加すること
により、その作業性を大巾に向上させることができる。
その結果、吹付け補修時間の短縮、補修材損失の低減な
ど、その効果はきわめて大きい。
As described above, the method of the present invention can greatly improve the workability by adding a colorant to the spray material in the spray repair of the industrial kiln.
As a result, the effects such as shortening of spray repair time and reduction of repair material loss are extremely large.

フロントページの続き (72)発明者 安田 尚俊 兵庫県高砂市荒井町新浜1−3−1 ハリ マセラミック株式会社内 (72)発明者 神部 義信 兵庫県高砂市荒井町新浜1−3−1 ハリ マセラミック株式会社内Front page continuation (72) Inventor Naotoshi Yasuda 1-3-1 Araicho Niihama, Takasago, Hyogo Prefecture Harima Ceramics Co., Ltd. (72) Inventor Yoshinobu Kambe 1-3-1 Araicho Niihama, Takasago, Hyogo Prefecture Harima Ceramics Within the corporation

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 着色剤を添加した吹付材を使用すること
を特徴とした工業窯炉の吹付け補修方法。
1. A method for spray repairing an industrial kiln, which comprises using a spray material containing a coloring agent.
【請求項2】 着色剤が、顔料または染料である請求項
1記載の工業窯炉の吹付け補修方法。
2. The method for spray repairing an industrial kiln according to claim 1, wherein the colorant is a pigment or a dye.
JP4214790A 1992-07-21 1992-07-21 Spray repair method for industrial kiln Expired - Lifetime JP2633146B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4214790A JP2633146B2 (en) 1992-07-21 1992-07-21 Spray repair method for industrial kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4214790A JP2633146B2 (en) 1992-07-21 1992-07-21 Spray repair method for industrial kiln

Publications (2)

Publication Number Publication Date
JPH0634277A true JPH0634277A (en) 1994-02-08
JP2633146B2 JP2633146B2 (en) 1997-07-23

Family

ID=16661580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4214790A Expired - Lifetime JP2633146B2 (en) 1992-07-21 1992-07-21 Spray repair method for industrial kiln

Country Status (1)

Country Link
JP (1) JP2633146B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017519113A (en) * 2014-03-21 2017-07-13 ベスビウス クルーシブル カンパニー Blast furnace hearth repair material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017519113A (en) * 2014-03-21 2017-07-13 ベスビウス クルーシブル カンパニー Blast furnace hearth repair material
US10295261B2 (en) 2014-03-21 2019-05-21 Vesuvius U S A Corporation Refractory lining repair material

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