JPH0212557Y2 - - Google Patents
Info
- Publication number
- JPH0212557Y2 JPH0212557Y2 JP4629985U JP4629985U JPH0212557Y2 JP H0212557 Y2 JPH0212557 Y2 JP H0212557Y2 JP 4629985 U JP4629985 U JP 4629985U JP 4629985 U JP4629985 U JP 4629985U JP H0212557 Y2 JPH0212557 Y2 JP H0212557Y2
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary chamber
- furnace
- tap
- furnace body
- molten metal
- 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
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 238000009628 steelmaking Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は製鋼用アーク炉に関する。[Detailed explanation of the idea] [Industrial application field] This invention relates to an arc furnace for steel making.
近年、製鋼用アーク炉においては、出湯方式と
してスラグを同伴せずに溶融金属のみの出湯を可
能とするアーク炉が採用されつつある。これは、
アーク炉以降の精練設備との関連においてその必
要性が生じたためであり、現在特に特殊鋼の分野
において多く採用されている。
BACKGROUND ART In recent years, arc furnaces for steelmaking have been increasingly adopted as a tapping method that allows only molten metal to be tapped without entraining slag. this is,
This is because the necessity arose in connection with smelting equipment after the arc furnace, and it is currently being widely adopted, especially in the field of special steel.
ところで従来の上記製鋼用アーク炉は、炉本体
の一側部に出湯のための上部が開放された補助室
が炉床を延長して炉本体と一体に形成され、この
補助室の底部に出湯口が開口されており、この出
湯口は補助室の上部開放部から挿入されるストツ
パロツドで閉塞するようになされている。 By the way, in the above-mentioned conventional arc furnace for steelmaking, an auxiliary chamber with an open top for tapping the furnace body is formed integrally with the furnace body by extending the hearth, and the auxiliary chamber is formed integrally with the furnace body at the bottom of the auxiliary chamber. A sprue is opened, and this sprue is closed by a stopper rod inserted from the upper opening of the auxiliary chamber.
上記従来のアーク炉では、補助室が炉本体およ
び炉床と一体構造であるため、補助室の取外しや
交換ができず、そのため補助室の内張り耐火物の
補修時には炉の操業を停止する時間が長くかか
り、その結果、炉の稼働率が著しく低下する欠点
がある。
In the above-mentioned conventional arc furnace, the auxiliary chamber is integrated with the furnace body and the hearth, so the auxiliary chamber cannot be removed or replaced, and as a result, it takes time to stop the furnace operation when repairing the refractory lining of the auxiliary chamber. The disadvantage is that it takes a long time and as a result, the operating efficiency of the furnace is significantly reduced.
また、補助室に設けられている出湯口の開閉方
式が補助室の上部から挿入されるストツパロツド
によるため、このロツドは出湯中は常に湯中にお
かれることになつて耐用寿命が短かくなるばかり
でなく、ストツパロツドにより溶湯に乱流を生じ
これにより出湯流が酸化しやすいとともにスラグ
を巻込みやすいという問題がある。 In addition, since the opening/closing method for the tap in the auxiliary room is a stopper rod that is inserted from the top of the auxiliary room, this rod is always left in the hot water during taping, which only shortens its useful life. However, there is a problem in that the stopper rod causes turbulence in the molten metal, which tends to oxidize the tapped metal flow and easily entrains slag.
この考案は、上記従来技術が有していた問題点
を解決するため、補助室を炉本体とは別体構成と
して炉本体から切離し可能に形成し、かつこの補
助室の上部を蓋で閉鎖するとともに底部に開口す
る出湯口を弁により開閉する構成として、補助室
の内張り耐火物の補修時には炉本体から補助室を
取外して新たな補助室と交換することにより炉の
休止時間を最小限に留めることができ、稼働率の
低下を防止し、出湯時には弁の開放により出湯流
を乱すことがなく、スラグの巻込みを防止し、さ
らに補助室の上部開放部を蓋により閉鎖してある
ため出湯流の酸化を防止することができるように
したものである。
In order to solve the problems of the above-mentioned conventional technology, this invention forms the auxiliary chamber as a separate structure from the furnace main body so that it can be separated from the furnace main body, and closes the upper part of this auxiliary chamber with a lid. At the same time, the tap opening at the bottom is opened and closed by a valve, and when repairing the refractory lining of the auxiliary chamber, the auxiliary chamber is removed from the furnace body and replaced with a new auxiliary chamber, thereby minimizing furnace downtime. This prevents a drop in operation rate, does not disturb the flow of hot water by opening the valve when hot water is tapped, prevents slag from getting caught in the hot water, and closes the top opening of the auxiliary chamber with a lid, making it possible to quickly tap the hot water. This prevents oxidation of the flow.
以下この考案の実施例を添付図面を参照して説
明する。
Embodiments of this invention will be described below with reference to the accompanying drawings.
炉本体１の一側部に設けられる出湯用の補助室
２は、その基部にフランジ３を有し、このフラン
ジ３と炉本体１側のフランジ４とを合せて、ボル
ト、コツタ等の締着具５により取外し可能に取付
けられている。 The auxiliary chamber 2 for tapping the hot water provided on one side of the furnace body 1 has a flange 3 at its base, and this flange 3 and the flange 4 on the furnace body 1 side are aligned to tighten bolts, bolts, etc. It is removably attached with a tool 5.
この補助室２の底部２ａには出湯口６が開口さ
れており、この出湯口６が設けられる底部２ａの
外面にはスライドゲート弁７が設けられ、このス
ライドゲート弁７は図示しない開閉駆動装置によ
るスライド操作により出湯口６が開閉されるよう
になつている。 A tap hole 6 is opened at the bottom 2a of the auxiliary chamber 2, and a slide gate valve 7 is provided on the outer surface of the bottom portion 2a where the tap hole 6 is provided. The outlet 6 is opened and closed by a sliding operation by the operator.
補助室２の上部開放部２ｂは、開閉可能な蓋８
により閉鎖されている。 The upper opening part 2b of the auxiliary chamber 2 has a lid 8 that can be opened and closed.
has been closed by.
図において９，９は電極、１０，１０はアー
ク、１１はハースラインを示している。 In the figure, 9 and 9 are electrodes, 10 and 10 are arcs, and 11 is a hearth line.
したがつて出湯時には、炉本体１を補助室２側
に傾けスライドゲート弁７を駆動して出湯口６を
開放することにより、炉本体１内の溶湯を出湯す
ることができる。このとき補助室２に流入して出
湯口６から流出する溶湯は、補助室２の上部開放
部２ｂが蓋８で閉鎖されているので酸化すること
がなく、また出湯口６の開放時には補助室２の底
部２ａのスライドゲート弁７のスライドによつて
出湯が開始されるので、補助室２に流入した溶湯
の流れに乱れが生じることがなく、スラグを巻込
んで流出することがない。 Therefore, when tapping, the molten metal in the furnace body 1 can be tapped by tilting the furnace body 1 toward the auxiliary chamber 2 and driving the slide gate valve 7 to open the tapping port 6. At this time, the molten metal that flows into the auxiliary chamber 2 and flows out from the tap 6 does not oxidize because the upper opening 2b of the auxiliary chamber 2 is closed with the lid 8, and when the tap 6 is opened, the molten metal does not oxidize. Since tapping is started by sliding the slide gate valve 7 at the bottom 2a of the auxiliary chamber 2, there is no disturbance in the flow of the molten metal flowing into the auxiliary chamber 2, and there is no possibility that the molten metal will flow out with slag involved.
補助室２の内張り耐火物の損傷等により保守を
必要とするときは、締着具５を外して炉本体１か
ら補助室２を取外し、新たな補助室２と交換する
ことにより直ちに炉の稼働に移ることができ、そ
の間に先きの補助室２の損傷箇所を別の場所で補
修することができる。なお、本考案のアーク炉
は、上述の実施例に限定されるものではなく、弁
の型式も本考案の要旨を逸脱しない範囲で種々変
更を加えることは勿論である。 If maintenance is required due to damage to the refractory lining of the auxiliary chamber 2, etc., remove the fasteners 5, remove the auxiliary chamber 2 from the furnace body 1, and replace it with a new auxiliary chamber 2 to immediately start the furnace. During this time, the damaged part of the auxiliary room 2 can be repaired elsewhere. It should be noted that the arc furnace of the present invention is not limited to the above-described embodiments, and it goes without saying that various changes may be made to the valve type without departing from the gist of the present invention.
以上説明したように、この考案は、炉本体の一
側部に補助室を締着具により取外し可能に取付け
たので、補助室の内張り耐火物の損傷時等には新
たな補助室と交換することにより僅かな休炉時間
をとるだけで操業を継続することができ、これに
より炉の稼働率を大巾に高めることができ、生産
性の向上をはかることができる。また補助室の底
部に開口する出湯口は弁により開閉する構成であ
るから、出湯流に乱れを起すことが少なく、その
ため溶湯の酸化を防止することができるとともに
溶湯の上面に浮遊するスラグを巻込んで流出する
ことが防止される。さらに補助室の上部は蓋によ
り閉鎖されているので、熱損失が防止できると同
時に溶湯が大気に開放されないため酸化を防ぎ、
かつ安全性を確保することができるなど、高品質
の鋼材を高能率に生産することができ、安全面で
も高い効果を有するなどの種々優れた製鋼用アー
ク炉を提供することができる。
As explained above, in this invention, the auxiliary chamber is removably attached to one side of the furnace body using fasteners, so if the auxiliary chamber's refractory lining is damaged, it can be replaced with a new auxiliary chamber. As a result, operation can be continued with only a short furnace downtime, thereby greatly increasing the operating rate of the furnace and improving productivity. In addition, since the tap opening at the bottom of the auxiliary chamber is opened and closed by a valve, there is little disturbance in the tap flow, which prevents oxidation of the molten metal and prevents slag floating on the top of the molten metal. This prevents the liquid from leaking out. Furthermore, the upper part of the auxiliary chamber is closed with a lid, which prevents heat loss and prevents the molten metal from being exposed to the atmosphere, preventing oxidation.
Moreover, it is possible to provide an arc furnace for steel making which has various excellent properties such as being able to ensure safety, producing high-quality steel materials with high efficiency, and having a high safety effect.
図はこの考案によるアーク炉の一実施例を示す
縦断側面図である。
１……炉本体、２……補助室、３，４……フラ
ンジ、５……締着具、６……出湯口、７……スラ
イドゲート弁、８……蓋。
The figure is a longitudinal sectional side view showing an embodiment of the arc furnace according to this invention. 1... Furnace body, 2... Auxiliary chamber, 3, 4... Flange, 5... Fastener, 6... Outlet, 7... Slide gate valve, 8... Lid.
Claims (1)
において、出湯口の下部にこれを開閉する弁を設
けたことを特徴とするアーク炉。 An arc furnace equipped with an auxiliary chamber for tapping on the side wall of a furnace body, characterized in that a valve for opening and closing the tap is provided at the bottom of the tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4629985U JPH0212557Y2 (en) | 1985-03-29 | 1985-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4629985U JPH0212557Y2 (en) | 1985-03-29 | 1985-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61162787U JPS61162787U (en) | 1986-10-08 |
| JPH0212557Y2 true JPH0212557Y2 (en) | 1990-04-09 |
Family
ID=30560562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4629985U Expired JPH0212557Y2 (en) | 1985-03-29 | 1985-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212557Y2 (en) |
-
1985
- 1985-03-29 JP JP4629985U patent/JPH0212557Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61162787U (en) | 1986-10-08 |
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