JPS58147505A - Cooling plate for body of blast furnace - Google Patents
Cooling plate for body of blast furnaceInfo
- Publication number
- JPS58147505A JPS58147505A JP3006382A JP3006382A JPS58147505A JP S58147505 A JPS58147505 A JP S58147505A JP 3006382 A JP3006382 A JP 3006382A JP 3006382 A JP3006382 A JP 3006382A JP S58147505 A JPS58147505 A JP S58147505A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- cooling plate
- alloy
- copper
- blast 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Electroplating Methods And Accessories (AREA)
- Physical Vapour Deposition (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は溶鉱炉の炉体を冷却する冷却盤に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling plate for cooling a furnace body of a blast furnace.
溶鉱炉のｍＷれんが積の寿命延長と鉄皮保１のための炉
体冷却の一稀に、内側に冷却水を通した冷却盤を鉄皮内
面に内蔵して冷却する方式があり、Ｉ仁れＫＪ＠いられ
る冷却盤は殆んどが銅製である為に、炉体内＠壁のれん
−がが損傷し、炉内に露出してしまうと、銅は低融点で
機械的強度も弱いので破損し取替を余儀なくされていた
。In order to extend the life of the mW brickwork in a blast furnace and to cool the furnace body to maintain the steel shell, there is a cooling method in which a cooling plate with cooling water passed inside is built into the inner surface of the steel shell. Most of the cooling plates used in KJ are made of copper, so if the bricks on the wall inside the furnace are damaged and exposed inside the furnace, copper has a low melting point and weak mechanical strength, so it will break. It had to be replaced.
本願発明は上述の欠点を解消する冷却盤を提供甘んとす
るものであ抄、その要旨は、銅若しくは銅合金製冷却盤
本体の外表面に、 Ｎ１−Ｆ＠合金層を形成せしめ、鋏
Ｎ１−Ｆ・合金層上に更にＣｒ層を形成せしめ１次いで
熱処理により冷却盤本体とＮｉ −Ｆ＠合金履間開びＫ
Ｎｉ−Ｆ・合金層とＣｒ層間にそれぞれ拡散層を形成せ
しめたことを特徴とした溶鉱炉の炉体冷却盤である。The present invention aims to provide a cooling board that eliminates the above-mentioned drawbacks. A Cr layer is further formed on the N1-F alloy layer, and then heat treatment is performed to separate the cooling plate body and the Ni-F@alloy track opening K.
This is a furnace body cooling plate for a blast furnace characterized by forming a diffusion layer between a Ni-F alloy layer and a Cr layer.
以下図面を参酌し乍も本願発明を詳述すれば。The present invention will be described in detail below with reference to the drawings.
第１図及び１１１２図６ζ溶鉱炉の炉体冷却盤の概要図
を示すが、本願発明のものにあっては％第３図の断面説
明図で示す様に、鯛若しくは銅合金製冷却盤本体（１）
上にＮ１−Ｆ・合金層（カ、その上にＣｒ層（３）を形
成した後熱処理を施しているので冷却盤本体０）とＮ１
−Ｆ・合金層（動量ＫＩ１１拡散層（４が、又Ｎ１−Ｆ
・合金層（２）とＣｒ層（３）開には１＄１２拡散層俤
）が存在するものである。これら拡散層は勿論Ｗｈ３図
に示す如く明確に境界を持って存在するものではなく合
金組成や熱処理の温度１時間によって興なる厚さを持っ
て一般層と合金層を形成する形で存在するものである。Fig. 1 and Fig. 1112 show schematic diagrams of the furnace body cooling plate of a 6ζ blast furnace. 1)
The N1-F alloy layer on top (f) and the cooling plate body 0 since the Cr layer (3) is formed on top of it and then heat treated) and N1
-F alloy layer (movement KI11 diffusion layer (4 is also N1-F
- A 1$12 diffusion layer exists between the alloy layer (2) and the Cr layer (3). These diffusion layers, of course, do not exist with clear boundaries as shown in Figure Wh3, but rather exist in the form of a general layer and an alloy layer, with thicknesses that vary depending on the alloy composition and heat treatment temperature for 1 hour. It is.
そして仁の第１拡散９１４１及び１１！２鉱散層（５）
は共に表面層が冷却盤本体０）と強固に密着する作用を
高め、特に餉２拡散層（５）はその成分がＦ＠、Ｃｒ、
Ｎｉから構成されるので耐熱耐食性に優れ、機械的強度
も大なるものである。And Jin's first diffusion 9141 and 11!2 dispersal layer (5)
Both of these enhance the effect of the surface layer adhering firmly to the cooling plate body 0), and in particular, the diffusion layer 2 (5) has components such as F@, Cr,
Since it is composed of Ni, it has excellent heat resistance and corrosion resistance, and also has high mechanical strength.
冷却盤本体＋１１上に形成するＮ１−Ｆ＠合金層（３）
及びＣｒ層（３）は、通常メッキで行なうがメッキ以外
に溶射、蒸着等の手段により行なう事も可能である。N1-F@alloy layer formed on cooling plate body +11 (3)
The Cr layer (3) is usually formed by plating, but it can also be formed by means other than plating, such as thermal spraying or vapor deposition.
又Ｎ１−Ｆ・合金層軸１ 、 Ｃｒ１ｇ ＋３１を形成
した後の熱処理は通常８００〜９５０℃で２〜５時開位
保持した後、水冷あるいは空冷によ勧冷却するものとす
る。Further, in the heat treatment after forming the N1-F alloy layer axis 1 and Cr1g +31, the opening position is normally maintained at 800 to 950° C. for 2 to 5 hours, and then cooling is recommended by water cooling or air cooling.
以上述べて来た様に本−発明によれば、融点が低く機械
的強度（特に高温に於４ｊる）が小さな銅若しくは一合
金の外表面に耐熱耐食性番【優れ、機械的強度の大なる
表面層を形成しているので、炉内偶壁れんがが損傷し、
冷却盤が露出した場合でもただちに損耗するという嫌な
事なく十分に嗣え得るものであり、又ξれら耐熱、耐食
性の表面層は冷却盤本体との開並びに各表面層部には拡
散層が形成され冶金的に強固に結合しているので剥離脱
落という事もないという効果がある。As described above, according to the present invention, the outer surface of copper or an alloy with a low melting point and low mechanical strength (especially at high temperatures) is coated with a heat-resistant and corrosion-resistant grade. Since the surface layer is formed, the even-walled bricks inside the furnace are damaged.
Even if the cooling plate is exposed, it can be easily replaced without causing immediate wear and tear, and the heat-resistant and corrosion-resistant surface layer has an opening with the cooling plate body as well as a diffusion layer on each surface layer. is formed and is metallurgically strongly bonded, so there is no possibility of peeling or falling off.
１１１図は炉体冷却盤の一部切欠平面図、１１１２図は
同＃画図、第３図は要部の拡大Ｗｋｉｉｉ図。
図中、０）：冷却盤本体
（創： Ｎ１−Ｆ＠合金層
（３）＝Ｃｒ層
特許出願人 三島光腹株式金社Figure 111 is a partially cutaway plan view of the furnace body cooling plate, Figure 1112 is a # drawing of the same, and Figure 3 is an enlarged Wkiii view of the main part. In the figure, 0): Cooling plate body (creation: N1-F@alloy layer (3) = Cr layer Patent applicant: Mishima Kobari Co., Ltd. Kinsha
Claims (1)
−Ｆ−合金層を形成せしめ、該Ｎ１−Ｆ・合金層上に更
−ζＣｒ層を形成せしめ１次いで熱処理により冷却盤本
体とＮ１−Ｆ―合金層聞並びにＮ１−Ｆ＠合金層とＣｒ
層間−こそれぞれ拡散層を形成せしめた仁とを特許とし
た溶鉱炉の炉体締却璽。1. N1 on the outer surface of the copper or copper alloy cooling board body.
-F- alloy layer is formed, and a -ζCr layer is further formed on the N1-F alloy layer. 1. Next, heat treatment is performed to form a layer between the cooling plate body and the N1-F alloy layer, as well as between the N1-F@alloy layer and the Cr layer.
A blast furnace body closure seal with a patented structure that forms a diffusion layer between the layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3006382A JPS58147505A (en) | 1982-02-24 | 1982-02-24 | Cooling plate for body of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3006382A JPS58147505A (en) | 1982-02-24 | 1982-02-24 | Cooling plate for body of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58147505A true JPS58147505A (en) | 1983-09-02 |
Family
ID=12293348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3006382A Pending JPS58147505A (en) | 1982-02-24 | 1982-02-24 | Cooling plate for body of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58147505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6783726B2 (en) * | 2000-02-23 | 2004-08-31 | Outokumpa Oyj | Cooling element and method for manufacturing cooling elements |
| WO2013079803A3 (en) * | 2011-11-30 | 2013-10-17 | Outotec Oyj | Cooling element and method for manufacturing a cooling element |
-
1982
- 1982-02-24 JP JP3006382A patent/JPS58147505A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6783726B2 (en) * | 2000-02-23 | 2004-08-31 | Outokumpa Oyj | Cooling element and method for manufacturing cooling elements |
| WO2013079803A3 (en) * | 2011-11-30 | 2013-10-17 | Outotec Oyj | Cooling element and method for manufacturing a cooling element |
| CN103958702A (en) * | 2011-11-30 | 2014-07-30 | 奥图泰有限公司 | Cooling element and method for manufacturing a cooling element |
| EP2785881A4 (en) * | 2011-11-30 | 2015-10-07 | Outotec Oyj | Cooling element and method for manufacturing a cooling element |
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