JPH0143811B2 - - Google Patents
Info
- Publication number
- JPH0143811B2 JPH0143811B2 JP26153884A JP26153884A JPH0143811B2 JP H0143811 B2 JPH0143811 B2 JP H0143811B2 JP 26153884 A JP26153884 A JP 26153884A JP 26153884 A JP26153884 A JP 26153884A JP H0143811 B2 JPH0143811 B2 JP H0143811B2
- Authority
- JP
- Japan
- Prior art keywords
- plug
- hole
- plate brick
- sliding plate
- 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
- 239000011449 brick Substances 0.000 claims description 29
- 238000007664 blowing Methods 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、酸素、不活性ガス、粉粒体混入の
ガス等の吹込取鍋、各種反応容器或いは製鋼炉、
溶銃炉等の溶融金属精錬炉に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to blowing ladles, various reaction vessels, steelmaking furnaces, etc. for blowing oxygen, inert gas, gas mixed with powder and granules, etc.
Related to molten metal refining furnaces such as blast gun furnaces.
一般に、溶融金属、例えば鋼の精錬に当たつ
て、鋼の品質向上、非金属介在物の除去、溶融金
属温度の均一化等を図るため、一般的なガス吹込
法、LD−VAC法、VAD法にあつては鍋底部よ
り、またはDH法、RH法にあつては、DH（RH）
反応容器の一部よりガスを炉内溶鋼中に吹き込ん
でいる。また、品質向上、生産性の向上、経済的
なプロセス、操業操作の簡略化、コスト低減、炉
体ライニングの延長、その他種々の目的を果たす
べく、例えば製鋼炉等におけるAOD炉の採用が
行われており、いずれも容器底部や底部に近い所
よりO2やAr、N2、空気などのガス、或いは炭化
水素のガスを単独にて或いは粉粒体等併用によつ
て炉内溶融金属中吹込んでいる。
Generally, when refining molten metal, such as steel, in order to improve the quality of the steel, remove nonmetallic inclusions, and equalize the temperature of the molten metal, the general gas blowing method, LD-VAC method, VAD method, etc. From the bottom of the pot for the method, or DH (RH) for the DH method and RH method.
Gas is blown into the molten steel in the furnace from a part of the reaction vessel. In addition, AOD furnaces are being adopted in steelmaking furnaces, etc., in order to improve quality, improve productivity, economical processes, simplify operations, reduce costs, extend furnace lining, and various other purposes. In both cases, gas such as O 2 , Ar, N 2 , air, or hydrocarbon gas is injected into the molten metal in the furnace from the bottom of the container or near the bottom, either alone or in combination with powder or granules. I'm reading.
かかる吹込み構造として、例えば、特公昭46−
21830号公報や特開昭46−2503号公報に記載のも
のがある。 As such a blowing structure, for example,
Some of these are described in JP-A No. 21830 and JP-A-46-2503.
しかしながら、かかる吹込み構造においては、
摺動用プレートれんがは吹き込み用のポーラスプ
ラグを摺動プレートれんがに埋設しているため、
ポーラスプラグが破損した場合、一端吹込み作業
を中止しなければならず、そのため吹込み作業の
能率低下をきたしていた。また、摺動プレートれ
んがと一体に交換しなければならず、装置が大掛
かりとなる他、摺動プレートれんが自体を廃棄し
なければならない等経済的にも不利であつた。
However, in such a blow-in structure,
Since the sliding plate brick has a porous plug for blowing embedded in the sliding plate brick,
If the porous plug is damaged, the blowing operation must be temporarily stopped, which reduces the efficiency of the blowing operation. In addition, the sliding plate brick must be replaced together with the sliding plate brick, making the device bulky, and the sliding plate brick itself must be discarded, which is economically disadvantageous.
また、通常使用されているガス吹込み孔は、炉
ライニングを構築するときに予め一体的に形成さ
れるものであり、吹込み孔やその近辺のみが損傷
しても操業途中で操業を一旦停止して補修しなけ
ればならなかつた。 In addition, the gas injection holes that are normally used are integrally formed in advance when constructing the furnace lining, so even if only the injection holes or the vicinity are damaged, the operation can be temporarily stopped during operation. I had to do some repairs.
さらに、吹込みプラグの寿命が炉命を決めるこ
とになつていた。 Furthermore, the life of the blow plug was supposed to determine the life of the reactor.
本発明は、上記問題点を解決することができる
溶融金属容器を提供することを目的とする。 An object of the present invention is to provide a molten metal container that can solve the above problems.
本発明では、溶融金属容器を、容器の壁体に同
壁体を貫通する吹込み孔を穿設し、吹込み孔まわ
りの壁体部分に固定プレートれんがを固着し、同
固定プレートれんがに上記吹込み孔と整合可能な
連通孔を穿設し、固定プレートれんが上に摺動自
在に摺動プレートれんがを取付け、同摺動プレー
トに、摺動プレートの摺動に連動して上記連通孔
と整合して溶融金属と接触する整合位置に移動自
在なポーラスプラグ若しくは細孔プラグを着脱自
在に装着した構成としている。
In the present invention, a molten metal container has a blowing hole penetrating through the wall of the container, a fixing plate brick is fixed to the wall part around the blowing hole, and the fixing plate brick has the above-mentioned structure. A communication hole that can be aligned with the blow hole is drilled, a sliding plate brick is slidably mounted on the fixed plate brick, and a communication hole is formed in the same sliding plate in conjunction with the sliding of the sliding plate. A movable porous plug or pore plug is detachably attached to an alignment position where it aligns and contacts molten metal.
以下、上記問題点を解決する手段を、添付図に
示す実施例に基づいて具体的に説明する。
Hereinafter, means for solving the above problems will be specifically explained based on the embodiments shown in the attached drawings.
図中、１は内部に溶融金属を受載する収容用容
器であり、同容器１は、その周壁の下位に、同周
壁を貫通し、不活性ガス等を容器１内に吹き込む
ための吹込み孔２を有している。 In the figure, reference numeral 1 denotes a storage container that receives molten metal inside, and the container 1 has a blower provided below its peripheral wall, which penetrates the peripheral wall and blows an inert gas or the like into the container 1. It has a hole 2.
また、３は上記吹込み孔２の周りであつて、周
壁の外面をなす個所に固着した固定プレートれん
がであり、同れんが３はその下部に上記吹込み孔
２と連通する連通孔４を設けている。 Further, reference numeral 3 denotes a fixed plate brick which is fixed to the outer surface of the peripheral wall around the blow hole 2, and the brick 3 is provided with a communication hole 4 communicating with the blow hole 2 at its lower part. ing.
また、５は固定プレートれんが３の上面に吹込
み孔２と連通孔４の幅方向と直交する方向に摺動
自在に取付けた摺動プレートれんがであり、同プ
レートれんが５は、間隔を開けて複数の小孔６
ａ，６ｂを有し、同小孔６ａ，６ｂにそれぞれポ
ーラスプラグもしくは細孔付プラグ７ａ，７ｂ
（以下、プラグ７ａ，７ｂとする）を着脱自在に
嵌着している。なお、プラグ７ａ，７ｂはいずれ
か１個とすることもできる。 Further, 5 is a sliding plate brick attached to the upper surface of the fixed plate brick 3 so as to be slidable in a direction perpendicular to the width direction of the blow hole 2 and the communication hole 4. Multiple small holes 6
a, 6b, and porous plugs or plugs with pores 7a, 7b are inserted into the same small holes 6a, 6b, respectively.
(hereinafter referred to as plugs 7a and 7b) are removably fitted. Note that either one of the plugs 7a and 7b may be used.
かかる構成において、各プラグ７ａ，７ｂは摺
動プレートれんが５の摺動とともに、図示しない
非整合位置と、図に示す連通孔４と整合する整合
位置間で移動することができる。 In this configuration, each plug 7a, 7b can be moved as the sliding plate brick 5 slides between a non-aligned position (not shown) and an aligned position aligned with the communicating hole 4 shown in the figure.
そして、非整合位置においては、プラグ７ａ，
７ｂを溶湯との接触から防止でき、また、第１図
に示す１整合位置ではガスを一方のプラグ７ａ、
連通孔４、吹込み孔２を通して容器１内の溶融金
属に吹き込むことができ、他の整合位置では他方
のプラグ７ｂ、連通孔４、吹込み孔２を通して容
器１内の溶融金属に吹き込みむことができる。 In the non-aligned position, the plug 7a,
7b from contact with the molten metal, and in the first alignment position shown in FIG.
It can be blown into the molten metal in the container 1 through the communication hole 4 and the blowing hole 2, and in other matching positions, it can be blown into the molten metal in the container 1 through the other plug 7b, the communicating hole 4 and the blowing hole 2. Can be done.
また、８ａ，８ｂはかかるプラグ７ａ，７ｂに
連結し、同プラグ７ａ，７ｂにガスを供給する供
給管である。 Further, 8a and 8b are supply pipes connected to the plugs 7a and 7b and supplying gas to the plugs 7a and 7b.
以下、上記構成を有する溶融金属容器における
ガス吹込み作業について説明する。 Hereinafter, the gas blowing operation in the molten metal container having the above structure will be explained.
まず摺動プレートれんが５のプラグ７ａ，７ｂ
が固定プレートれんが３によつて塞がれた非整合
位置にしておき、次に溶鋼を容器１内に注ぐ。 First, the plugs 7a and 7b of the sliding plate brick 5
is in a non-aligned position blocked by a fixed plate brick 3, and then the molten steel is poured into the vessel 1.
受鋼後、摺動プレートれんが５を吹込み孔２及
び連通孔４の幅方向と直交する方向に摺動してプ
ラグ７ａを連通孔４と整合させ、プラグ７ａに流
体を供給し、容器１内の溶融金属へガスを吹き込
む。その後、プラグ７ａが溶損した場合は、摺動
プレート５を再度駆動してプラグ７ｂを連通孔４
と図に示すごとく整合させ、ガス供給を続けるこ
とができる。 After receiving steel, the sliding plate brick 5 is slid in a direction perpendicular to the width direction of the blowing hole 2 and the communication hole 4 to align the plug 7a with the communication hole 4, supplying fluid to the plug 7a, and removing the container 1. Gas is blown into the molten metal inside. After that, if the plug 7a is damaged by melting, the sliding plate 5 is driven again to move the plug 7b into the communication hole 4.
As shown in the figure, gas supply can be continued.
なお、本発明におけるその他の特徴を述べれ
ば、以下のごとくなる。 In addition, other features of the present invention are as follows.
(イ) 固定プレートれんが３は収容用容器１に埋設
状として一体化することもできる。(a) The fixing plate brick 3 can also be integrated into the storage container 1 in a buried form.
(ロ) また、プラグ７としては以下のものが考えら
れる。(b) In addition, the following can be considered as the plug 7.
通常の耐火煉瓦（摺動プレート）の中心部
又は偏心部分に載頭円錐形に成形したガス透
過性多孔質等の通気性を有するれんがを着脱
自在な状態のもとに嵌着したポーラスプラ
グ。 A porous plug in which a gas-permeable porous or other air-permeable brick shaped into a truncated conical shape is removably fitted into the center or eccentric part of an ordinary refractory brick (sliding plate).
この耐火煉瓦全体をポーラス、即ちガス透
過性多孔質による成形体としたポーラスプラ
グ
上記、において、所要数のガス吹込み
用細孔を穿設したポーラスプラグ。 A porous plug in which the entire refractory brick is porous, that is, a molded body made of gas-permeable porous material.A porous plug as described above, in which a required number of gas injection pores are bored.
上記、の形態を耐火物にて形成し、か
つこれにと同様に所要本数のガス吹込み用
細孔を穿設した細孔付プラグ。 A plug with pores formed of a refractory material in the form described above, and having a required number of pores for blowing gas therein.
(ハ) 吹込みは、内部に対してその中心方向、上下
方向、接線方向自在である。(c) Blowing can be performed freely in the center direction, vertical direction, and tangential direction with respect to the interior.
(ニ) 各れんがの摺動面に損傷防止材を介入させる
こともできる。(d) Damage prevention material can also be interposed on the sliding surfaces of each brick.
(ホ) プラグ７を設ける位置は、スラグの滞留高さ
より上方がよい。(e) The plug 7 should be installed above the slag retention height.
(ヘ) 吹込み孔２の下面は、炉内に向かつて下がる
角度を持たせるとよい。(f) The lower surface of the blow hole 2 should be angled downward toward the inside of the furnace.
(ト) 面圧負荷装置及び固定プレート、プラグプレ
ートのセツトには、カセツト式やツクイツクセ
ツト式の装置の使用により、より迅速な作業が
できる。(g) When setting the surface pressure loading device, fixing plate, and plug plate, work can be done more quickly by using a cassette type or twist set type device.
(チ) 往復動式（レシプロ式）のみならず、回転式
（ロータリ式）とすることもできる。(h) It can be not only a reciprocating type (reciprocating type) but also a rotating type (rotary type).
(リ) 三枚プレート式の吹込み構造を有する溶融金
属容器にも適用できる。(li) It can also be applied to molten metal containers with a three-plate blowing structure.
以上述べてきたごとく、本発明では、摺動プレ
ートれんがにプラグを着脱自在に装着したので、
ガス吹込み中にプラグが溶損などによつて故障し
ても、プラグのみを迅速かつ容易に変換すること
ができる。従つて、吹込み作業に停滞を生じるこ
とがなく、同作業の効率を向上することができ
る。
As described above, in the present invention, since the plug is detachably attached to the sliding plate brick,
Even if the plug breaks down due to melting or damage during gas injection, only the plug can be replaced quickly and easily. Therefore, there is no stagnation in the blowing operation, and the efficiency of the blowing operation can be improved.
図はプラグが整合位置にある本発明にかかる溶
融金属用容器を示す縦断正面図である。
図中、１：収容用容器、２：吹込み孔、３：固
定プレートれんが、４：連通孔、５：摺動プレー
トれんが、６ａ，６ｂ：小孔、７ａ，７ｂ：ポー
ラスプラグまたは細孔付プラグ、８ａ，８ｂ：供
給管。
The figure is a longitudinal sectional front view of a container for molten metal according to the invention with the plug in the aligned position. In the figure, 1: Storage container, 2: Blow hole, 3: Fixed plate brick, 4: Communication hole, 5: Sliding plate brick, 6a, 6b: Small hole, 7a, 7b: Porous plug or with small hole. Plugs, 8a, 8b: supply pipes.
Claims (1)
設し、吹込み孔まわりの壁体部分に固定プレート
れんがを固着し、同固定プレートれんがに上記吹
込み孔と整合可能な連通孔を穿設し、固定プレー
トれんが上に摺動自在に摺動プレートれんがを取
付け、同摺動プレートに、摺動プレートの摺動に
連動して上記連通孔と整合して溶融金属と接触す
る整合位置に移動自在なポーラスプラグ若しくは
細孔プラグを着脱自在に装着したことを特徴とす
る着脱自在なガス吹込みプラグを有する溶融金属
容器。1. A blow hole penetrating the wall of the container is drilled through the wall, a fixing plate brick is fixed to the wall around the blow hole, and a communication hole is provided in the fixing plate brick that can be aligned with the blow hole. A hole is drilled, and a sliding plate brick is slidably mounted on the fixed plate brick, and the sliding plate is aligned with the communicating hole and comes into contact with the molten metal in conjunction with the sliding of the sliding plate. A molten metal container having a removable gas blowing plug, characterized in that a porous plug or a pore plug that can be moved to an alignment position is removably attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26153884A JPS60145312A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having freely attachable and detachable gas blow plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26153884A JPS60145312A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having freely attachable and detachable gas blow plug |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12743474A Division JPS5912725B2 (en) | 1974-11-04 | 1974-11-04 | Container for molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60145312A JPS60145312A (en) | 1985-07-31 |
| JPH0143811B2 true JPH0143811B2 (en) | 1989-09-22 |
Family
ID=17363286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26153884A Granted JPS60145312A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having freely attachable and detachable gas blow plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145312A (en) |
-
1984
- 1984-12-10 JP JP26153884A patent/JPS60145312A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60145312A (en) | 1985-07-31 |
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