JPS6238237Y2 - - Google Patents
Info
- Publication number
- JPS6238237Y2 JPS6238237Y2 JP1984175159U JP17515984U JPS6238237Y2 JP S6238237 Y2 JPS6238237 Y2 JP S6238237Y2 JP 1984175159 U JP1984175159 U JP 1984175159U JP 17515984 U JP17515984 U JP 17515984U JP S6238237 Y2 JPS6238237 Y2 JP S6238237Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- ceiling
- furnace
- water supply
- header
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、電気炉の水平炉蓋に関するもので、
詳しくは、製鋼用アーク炉などの電気炉の炉蓋と
して利用されるものである。[Detailed description of the invention] Industrial application field This invention relates to a horizontal furnace lid for an electric furnace.
Specifically, it is used as a furnace lid for an electric furnace such as an arc furnace for steelmaking.
従来の技術
従来のアーク炉などの電気炉の炉蓋は、中央に
水平の小天井を有し、その外周に円錐状の大天井
を有している。また大天井には、小天井に近いほ
うに排水ヘツダを有し、炉殼の円周上面のほうに
給水ヘツダを有し、これら両ヘツダ間に円錐状に
並べた冷却水パイプ群を有している。BACKGROUND ART A conventional furnace lid of an electric furnace such as an arc furnace has a small horizontal ceiling in the center and a large conical ceiling around the outer periphery. In addition, the large ceiling has a drainage header near the small ceiling, a water supply header near the top of the circumference of the furnace shell, and a group of cooling water pipes arranged in a conical shape between these two headers. ing.
考案が解決しようとする問題点
前述のように、従来の電気炉の炉蓋は、大天井
が円錐状のため、その構造からして、メインテナ
ンスおよび製作が難しく、また排水ヘツダは電極
から多量の輻射熱を受けるが大口径の鋼管である
ため、冷却水の管内流速が小さく、熱伝達係数が
小さいので、その鋼管の熱疲労を生じやすいなど
の問題点がある。本考案は、このような問題点を
解決しようとするものである。すなわち、本考案
は、構造が簡単で、メインテナンスおよび製作が
容易であり、かつ、排水ヘツダが炉蓋中心部から
の熱影響の少ない電気炉の水平炉蓋を提供するこ
とを目的とするものである。Problems that the invention aims to solve As mentioned above, the roof of a conventional electric furnace has a large conical roof, which makes maintenance and manufacturing difficult due to its structure.Also, the drain header drains a large amount of water from the electrode. Since it is a large-diameter steel pipe that receives radiant heat, the flow velocity of cooling water in the pipe is low and the heat transfer coefficient is small, so there are problems such as the steel pipe being susceptible to thermal fatigue. The present invention attempts to solve these problems. That is, the object of the present invention is to provide a horizontal furnace lid for an electric furnace that is simple in structure, easy to maintain and manufacture, and in which the drain header is less affected by heat from the center of the furnace lid. be.
問題点を解決するための手段
大天井を水平状にし、かつ、排水ヘツダを炉蓋
の外側にほうにリング状に設けて給水リングと一
体化した。すなわち、本考案の構成は、中央に小
天井を有し、この小天井の外周に大天井を有し、
かつ、該大天井には、炉殼の円周上面に沿つて該
上面に乗る給水リングを下方に有して該給水リン
グの上部に一体化された排水リングを有する大天
井ルーフリングと、このルーフリングの上部に固
定された吊ビームに水平に吊り下げられた水冷パ
イプ群を有する大天井ヘツダとを備えていること
を特徴としている。Measures to solve the problem: The large ceiling was made horizontal, and the drain header was installed in a ring shape on the outside of the furnace lid and integrated with the water supply ring. That is, the configuration of the present invention has a small ceiling in the center, a large ceiling around the outer periphery of this small ceiling,
and a large ceiling roof ring having a water supply ring below that rests on the upper surface along the circumferential upper surface of the hearth shell, and a drainage ring integrated into the upper part of the water supply ring; It is characterized by a large ceiling header having a group of water cooling pipes suspended horizontally from a hanging beam fixed to the top of the roof ring.
作 用
大天井が円錐状でなく、水平状になつているた
め、水冷パイプ群のメインテナンスおよび製作が
容易であり、また排水ヘツダが炉蓋外側のほうに
設けられているので、炉蓋中心部からの熱影響が
非常に少なく、耐久性があり、かつ、損傷した場
合でも、炉蓋中心部から遠いため、炉蓋全体を取
除く必要がなく、短時間で修理などをすることが
できる。Function Since the large ceiling is not conical but horizontal, maintenance and production of the water cooling pipe group is easy.Also, since the drainage header is installed on the outside of the furnace lid, it is easy to maintain and manufacture the water cooling pipe group. It is very durable and has very little heat influence, and even if it is damaged, it is far from the center of the furnace lid, so there is no need to remove the entire furnace lid, and repairs can be done in a short time.
実施例 図面は本考案の一実施例を示している。Example The drawings show an embodiment of the invention.
図面において、１はアーク炉の炉殼、２は炉蓋
の小天井、３は同じく大天井である。 In the drawing, 1 is the furnace shell of the arc furnace, 2 is the small ceiling of the furnace lid, and 3 is also the large ceiling.
そして小天井２には、電極口４、センタリング
５、三角ジヤケツト６などを有している。 The small ceiling 2 has an electrode port 4, a centering ring 5, a triangular jacket 6, etc.
また大天井３には、集じん口７、前記炉殼１の
外周上面に乗る給水ヘツダとしての役目をする給
水リング８ａ（第３図参照）を有してこの給水リ
ング８ａの上部に一体化された排水ヘツダとして
の役目をする排水リング８ｂ（第３図参照）を有
する大天井ルーフリング８、このリング８の上部
に固定された吊ビーム９、この吊ビーム９の上部
に固定された吊金具１０、この吊金具１０に設け
られて前記吊ビーム９を水平に支持するコツタ１
１、該吊ビーム９に水平状に吊り下げられた多数
の水冷パイプ１２を有する大天井ヘツダ１３など
を備えている。 Furthermore, the large ceiling 3 has a dust collection port 7 and a water supply ring 8a (see Fig. 3) that serves as a water supply header that rests on the upper surface of the outer periphery of the furnace shell 1, and is integrated into the upper part of this water supply ring 8a. A large ceiling roof ring 8 has a drainage ring 8b (see Fig. 3) that serves as a drainage header, a hanging beam 9 fixed to the upper part of this ring 8, and a hanging beam 9 fixed to the upper part of this hanging beam 9. A metal fitting 10, a kotsuta 1 that is provided on the hanging metal fitting 10 and horizontally supports the hanging beam 9.
1. A large ceiling header 13 having a large number of water cooling pipes 12 suspended horizontally from the hanging beam 9 is provided.
なお小天井２のセンタリング５は吊ビーム９に
支持され、内側には耐火れんがを施工し、また大
天井３の水冷パイプ１２の外周にはキスタブルが
施工されている。 The centering 5 of the small ceiling 2 is supported by a hanging beam 9, and the inside is made of fireproof brick, and the outer periphery of the water cooling pipe 12 of the large ceiling 3 is made of kisstable.
図示のように構成された電気炉（アーク炉）の
炉蓋においては、吊ビーム９が水平に設けられて
いて、多数の水冷パイプ１２が水平状になつてい
るので、大天井３のメインテナンスおよび製作が
容易となる。また冷却水は、ルーフリング８の給
水リング８ａから一方のヘツダ１３を経て水冷パ
イプ１２に供給され、水冷パイプ１２からの排水
は他方のヘツダ１３を経てルーフリング８の排水
リング８ｂに至る。 In the lid of an electric furnace (arc furnace) configured as shown in the figure, the suspension beam 9 is installed horizontally, and a large number of water cooling pipes 12 are arranged horizontally, so that maintenance of the large ceiling 3 and Manufacturing becomes easy. Cooling water is supplied from the water supply ring 8a of the roof ring 8 to the water cooling pipe 12 via one header 13, and drainage from the water cooling pipe 12 reaches the drain ring 8b of the roof ring 8 via the other header 13.
なお小天井２のセンタリング５の冷却水の給排
水についても、ルーフリング８から行なうように
してもよい。 Note that the cooling water supply and drainage to the center ring 5 of the small ceiling 2 may also be performed from the roof ring 8.
考案の効果
本考案は、大天井が円錐状でなく、水冷パイプ
群が水平状に吊ビームによつて吊り下げられてい
るので、大天井のメインテナンスおよび製作が容
易となり、かつ、大天井ルーフリングが給水リン
グと排水リングを一体化した１つのブロツクから
なり、炉蓋中心部から遠い炉蓋外側のほうに設け
られているので、炉蓋中心部からの熱影響が少な
く、トラブルが減少し、しかも、昇温した冷却水
を通すために焼損のしやすい排水リングを給水リ
ングの上部にして炉内熱の影響を比較的受け難い
ようにしてあるため、一そう耐久性が向上し、も
し、損傷した場合でも、炉蓋全体を取除く必要が
なく、容易に補修が可能である。Effects of the invention In this invention, the large ceiling is not conical, and the water cooling pipes are suspended horizontally by suspension beams, making maintenance and production of the large ceiling easy, and the large ceiling roof ring consists of a single block that integrates a water supply ring and a drainage ring, and is installed on the outside of the furnace lid, far from the center of the furnace lid, so there is less heat influence from the center of the furnace lid, reducing troubles. Furthermore, in order to pass the heated cooling water, the drainage ring, which is prone to burnout, is placed above the water supply ring so that it is relatively unaffected by the heat inside the furnace, which greatly improves durability. Even if it is damaged, there is no need to remove the entire furnace lid and it can be easily repaired.
第１図は本考案の一実施例を示した平面図、第
２図は第１図の切断線Ａ−Ａに沿う断面正面図、
第３図は第２図の一部を拡大した断面正面図であ
る。
１……炉穀、２……小天井、３……大天井、８
……大天井ルーフリング、８ａ……給水リング、
８ｂ……排水リング、９……吊ビーム、１２……
水冷パイプ、１３……大天井ヘツダ。
FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a cross-sectional front view taken along cutting line A-A in FIG. 1,
FIG. 3 is an enlarged cross-sectional front view of a part of FIG. 2. 1... Furnace grain, 2... Small ceiling, 3... Large ceiling, 8
...Large ceiling roof ring, 8a...Water supply ring,
8b...Drainage ring, 9...Hanging beam, 12...
Water cooling pipe, 13...large ceiling header.
Claims (1)
井を有し、かつ、該大天井には、炉殼の円周上面
に沿つて該上面に乗る給水リングを下方に有して
該給水リングの上部に一体化された排水リングを
有する大天井ルーフリングと、このルーフリング
の上部に固定された吊ビームに水平状に吊り下げ
られた水冷パイプ群を有する大天井ヘツダとを備
えていることを特徴とする、電気炉の水平炉蓋。 It has a small ceiling in the center and a large ceiling around the outer periphery of the small ceiling, and the large ceiling has a water supply ring below that rests on the upper surface along the circumferential upper surface of the furnace shell. A large ceiling roof ring having a drainage ring integrated into the upper part of the water supply ring, and a large ceiling header having a group of water cooling pipes suspended horizontally from a hanging beam fixed to the upper part of the roof ring. A horizontal furnace lid for an electric furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984175159U JPS6238237Y2 (en) | 1984-11-20 | 1984-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984175159U JPS6238237Y2 (en) | 1984-11-20 | 1984-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6191800U JPS6191800U (en) | 1986-06-14 |
| JPS6238237Y2 true JPS6238237Y2 (en) | 1987-09-30 |
Family
ID=30732763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984175159U Expired JPS6238237Y2 (en) | 1984-11-20 | 1984-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6238237Y2 (en) |
-
1984
- 1984-11-20 JP JP1984175159U patent/JPS6238237Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6191800U (en) | 1986-06-14 |
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