JPH08320185A - Precast block Ladle furnace with refractory structure Dust collecting hood Ceiling - Google Patents
Precast block Ladle furnace with refractory structure Dust collecting hood CeilingInfo
- Publication number
- JPH08320185A JPH08320185A JP15248995A JP15248995A JPH08320185A JP H08320185 A JPH08320185 A JP H08320185A JP 15248995 A JP15248995 A JP 15248995A JP 15248995 A JP15248995 A JP 15248995A JP H08320185 A JPH08320185 A JP H08320185A
- Authority
- JP
- Japan
- Prior art keywords
- dust collecting
- collecting hood
- water
- precast block
- ceiling
- 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
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
(57)【要約】
【目的】 レードルファーネス集塵フード天井部の水冷
金物のスパークによる水漏れをなくし、耐用を向上させ
る。
【構成】 集塵フード天井部水冷金物をプレキャストブ
ロック耐火物構造に変更することにより、水漏れがなく
なり、耐用も大巾に向上した。(57) [Abstract] [Purpose] To prevent water leakage due to sparks of water-cooled metal objects on the ceiling of the ladle furnace dust collection hood and improve durability. [Structure] By changing the water cooling hardware of the dust collecting hood to a precast block refractory structure, water leakage was eliminated and durability was greatly improved.
Description
【０００１】[0001]
【産業上の利用分野】本願発明は、製鋼用レードルファ
ーネス炉蓋集塵フード天井部にプレキャストブロック耐
火物を使用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 of using a precast block refractory for the ceiling part of a dust collecting hood of a ladle furnace for steelmaking.
【０００２】[0002]
【従来の技術】従来のレードルファーネス炉蓋集塵フー
ド天井部は、電極穴が３ケ所ある水冷金物で作成された
水冷炉蓋で場合によっては電極と金物の間をシールする
ため、プレキャストのリングブロック３ケを金物の上部
にセットして使用している。図１にその一例を示す。2. Description of the Related Art The conventional ladle furnace furnace lid dust collecting hood ceiling part is a water-cooled furnace lid made of water-cooled metal fittings having three electrode holes, and in some cases, a precast ring is used to seal between the electrode and the metal fitting. Three blocks are set on top of the hardware and used. FIG. 1 shows an example thereof.
【０００３】[0003]
【発明が解決しようとする課題】水冷炉蓋集塵フード天
井部の穴周りにスプラッシュ等が付着して電極と水冷金
物の間でスパークが発生し、水漏れするため操業を止め
て修理することが多く、耐用が 1200ヒートと短く、他
の部分の水冷金物の耐用は 3600ヒート位あるため、集
塵フード天井部のみを取替えたり補修している。[Problems to be Solved by the Invention] Since water splashes around the holes in the ceiling of the water-cooled furnace lid dust collection hood and sparks occur between the electrode and the water-cooled metal object, water leaks, so operation is stopped and repaired. However, since the service life is short at 1200 heat and the service life of water-cooled metal parts of other parts is around 3600 heat, only the ceiling part of the dust collecting hood is replaced or repaired.
【０００４】[0004]
【課題を解決するための手段】水冷炉蓋集塵フード天井
部水冷金物とリングブロック部分全体をプレキャストブ
ロック耐火物構造にする。好ましくは割れ防止および施
工性をよくするため、ブロックの周りを鉄板巻構造にす
る。A water-cooled furnace lid dust collection hood ceiling water-cooled metal object and the entire ring block portion are made into a precast block refractory structure. Preferably, in order to prevent cracking and improve workability, the block is surrounded by an iron plate.
【０００５】[0005]
【実施例】図２は製鋼用 160t 取鍋のレードルファーネ
ス集塵フード天井部にプレキャストブロックを使用した
実施例である。EXAMPLE FIG. 2 shows an example in which a precast block was used for the ceiling part of the ladle furnace dust collecting hood of a 160-ton ladle for steelmaking.
【０００６】レードルファーネス集塵フード天井プレキ
ャストブロックは耐用面から考えると、高さ(厚み)80mm
以上がよい。また金物への固定ブロックの割れ防止を
考えると、厚み 3〜6mm の鉄板を巻いた方がよい。操業
中の発塵を少なくするために電極穴周りのすき間は 100
mm〜20mm 位で少ない方がよい。形状は水冷炉蓋の金物
に合わせて設計する。材質は Al2O3 50％以上の高アル
ミナ質が良好である。The ladle furnace dust collecting hood ceiling precast block has a height (thickness) of 80 mm in terms of its useful life.
The above is good. Considering the prevention of cracking of the fixed block to the metal object, it is better to wind an iron plate with a thickness of 3 to 6 mm. The gap around the electrode hole is 100 in order to reduce dust generation during operation.
It is better to reduce it to around mm to 20 mm. The shape is designed according to the hardware of the water-cooled furnace lid. Alumina with a high Al 2 O 3 content of 50% or more is a good material.
【０００７】[0007]
【発明の効果】水漏れ等炉蓋のトラブルによって操業を
止めることがなくなり、耐用も３倍以上となり２回/年
計画的に取替えている[Effects of the Invention] The operation will not be stopped due to the trouble of the furnace lid such as water leak, and the service life will be more than tripled and will be replaced twice a year as planned.
【表１】 。[Table 1] .
【０００８】[0008]
【図１】 従来の水冷炉蓋の構造FIG. 1 Structure of conventional water-cooled furnace lid
【図２】 集塵フード天井部にプレキャストブロックを
使用した構造[Fig. 2] Structure using a precast block on the ceiling of the dust collecting hood
【符号の説明】 １．集塵フード天井水冷金物 ２．集塵フード側壁水冷金物 ３．炉蓋天井水冷金物 ４．炉蓋側壁水冷金物 ５．集塵パイプ ６．プレキャストリングブロック ７．集塵フード天井のプレキャストブロック[Explanation of Codes] Dust collecting hood Ceiling water-cooled hardware 2. Dust collecting hood side wall water-cooled hardware 3. Water-cooled hardware for the roof of the furnace lid 4. Side wall water cooled metal fittings 5. Dust collection pipe 6. Precast ring block 7. Precast block for dust collection hood ceiling
Claims (1)
部をプレキャストブロック耐火物にする。1. A precast block refractory is used for the ceiling of the ladle furnace furnace lid dust collection hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15248995A JPH08320185A (en) | 1995-05-25 | 1995-05-25 | Precast block Ladle furnace with refractory structure Dust collecting hood Ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15248995A JPH08320185A (en) | 1995-05-25 | 1995-05-25 | Precast block Ladle furnace with refractory structure Dust collecting hood Ceiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08320185A true JPH08320185A (en) | 1996-12-03 |
Family
ID=15541597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15248995A Pending JPH08320185A (en) | 1995-05-25 | 1995-05-25 | Precast block Ladle furnace with refractory structure Dust collecting hood Ceiling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08320185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100762461B1 (en) * | 2001-10-26 | 2007-10-02 | 주식회사 포스코 | Ladle Acro High Life Centerpiece |
-
1995
- 1995-05-25 JP JP15248995A patent/JPH08320185A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100762461B1 (en) * | 2001-10-26 | 2007-10-02 | 주식회사 포스코 | Ladle Acro High Life Centerpiece |
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