JPH0143813B2 - - Google Patents
Info
- Publication number
- JPH0143813B2 JPH0143813B2 JP26154084A JP26154084A JPH0143813B2 JP H0143813 B2 JPH0143813 B2 JP H0143813B2 JP 26154084 A JP26154084 A JP 26154084A JP 26154084 A JP26154084 A JP 26154084A JP H0143813 B2 JPH0143813 B2 JP H0143813B2
- Authority
- JP
- Japan
- Prior art keywords
- plugs
- plate brick
- hole
- sliding plate
- brick
- 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 34
- 239000002184 metal Substances 0.000 claims description 16
- 238000007664 blowing Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003825 pressing 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
- 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
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
- 238000007670 refining Methods 0.000 description 1
- 239000011819 refractory material Substances 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、粉粒体を混入
するガス等の吹込取鍋、各種反応容器或いは製鋼
炉、溶銃炉等の溶融金属容器に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to blowing ladles, various reaction vessels, or melting devices such as oxygen, inert gas, and gases mixed with powder or granules, or steelmaking furnaces, blast gun furnaces, etc. Regarding metal containers.
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, make economical processes, simplify operations, reduce costs, extend furnace lining, and various other purposes. In both cases, gases such as O 2 , Ar, N 2 , air, or hydrocarbon gases are 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１個しか有していないため、ポーラスプラ
グからのガス吹込み量の調整は、摺動プレートれ
んがの摺動量の微調整のみによつて行わねばなら
ず、これは非常に困難であり、さらに、固定プレ
ートれんがとプラグ接触部は損傷が大であつた。
However, in such a blow-in structure,
Since the sliding plate brick has only one porous plug for blowing, the amount of gas blown from the porous plug must be adjusted only by finely adjusting the sliding amount of the sliding plate brick. This was extremely difficult, and furthermore, the contact area between the fixing plate brick and the plug was severely damaged.
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.
上記問題点を解決するため、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複数のポーラス
プラグ若しくは細孔プラグを間隔を開けて装着
し、されに同プラグのガス吹込み面積を相違させ
た構成としている。
In order to solve the above problems, in the present invention, a molten metal container is provided with a blow hole penetrating through the wall of the container, and a fixing plate brick is fixed to the wall part around the blow hole. Then, a communication hole that can be aligned with the above-mentioned blow hole is bored in the fixed plate brick, and a sliding plate brick is slidably mounted on the fixed plate brick, and the sliding plate is slidably attached to the fixed plate brick. In conjunction with this, a plurality of movable porous plugs or pore plugs are attached at intervals to align with the communicating holes and contact with the molten metal, and the gas injection areas of the plugs are varied. The structure is as follows.
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は内部に溶湯金属を受載する収容用器
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, 1 is a container for receiving 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はその一部に上記吹込み孔
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 has a communicating hole 4 communicating with the blow hole 2 in a part thereof. It is set up.
また、５は固定プレートれんが３の上面に重合
状態に取りつけられ、軸線Ａ周りに回転自在に配
設した摺動プレートれんがである。 Moreover, 5 is a sliding plate brick attached to the upper surface of the fixed plate brick 3 in an overlapping state and rotatably arranged around the axis A.
摺動プレートれんが５はその円周方向に間隔を
開けてそれぞれガス吹込み面積を相違する細孔プ
ラグまたはポーラスプラグからなる複数のプラグ
７ａ，７ｂを有しており、これらのプラグ７ａ，
７ｂは摺動プレートれんが５の回転とともに固定
プレートれんが３に設けた連通孔と整合可能であ
る。 The sliding plate brick 5 has a plurality of plugs 7a, 7b which are spaced apart in the circumferential direction and are made of pore plugs or porous plugs having different gas injection areas, and these plugs 7a,
7b can be aligned with the communication hole provided in the fixed plate brick 3 as the sliding plate brick 5 rotates.
また、摺動プレートれんが５を回転することに
よつてプラグ７ａ，７ｂを非整合位置にもたらす
ことができる。 Also, by rotating the sliding plate brick 5 the plugs 7a, 7b can be brought into a non-aligned position.
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、図示し
ない１整合位置では流体を一方のプラグ７ａ、連
通孔４、吹込み孔２を通して容器１内の溶融金属
に大量の流体を吹き込むことができ、図に示す他
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内の溶融金属に少量の流
体を吹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 one matching position (not shown), a large amount of fluid can be blown into the molten metal in the container 1 through one of the plugs 7a, the communication hole 4, and the blowing hole 2, In the other alignment position shown in the figure, a small amount of fluid can be blown into the molten metal in the container 1 through the other plug 7b, the communication hole 4 and the blowing hole 2.
また、８はかかるプラグ７ａ，７ｂに連結した
ガスの供給管、９は固定プレートれんが３と摺動
プレートれんが５との面接触部分に面圧を発生さ
せるためのスプリング付の押圧プレートを示す。 Further, 8 indicates a gas supply pipe connected to the plugs 7a and 7b, and 9 indicates a pressing plate with a spring for generating surface pressure at the surface contact portion between the fixed plate brick 3 and the sliding plate brick 5.
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, a gas blowing operation in a 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を回転摺動して
プラグ７ａを連通孔４と整合させ、プラグ７ａに
ガスを供給し、容器１内の溶融金属へ大量のガス
を吹き込む。その後、流入量を小さくしたい場合
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 the steel, the sliding plate brick 5 is rotated and slid to align the plug 7a with the communication hole 4, gas is supplied to the plug 7a, and a large amount of gas is blown into the molten metal in the container 1. Thereafter, if it is desired to reduce the inflow amount, the sliding plate 5 is driven again to align the plug 7b with the communication hole 4 as shown in the figure, and 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７ａ，７ｂとしては以下のもの
が考えられる。(b) Furthermore, the following plugs can be considered as the plugs 7a and 7b.
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。 This porous plug is made of a porous refractory brick, that is, a molded body made of gas-permeable porous material.
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。 In the above, a porous plug is provided with a required number of gas injection pores.
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７ａ，７ｂを設ける位置は、スラグの
滞留高さより上方がよい。(e) The plugs 7a and 7b should be installed above the slag retention height.
(ニ) 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。(d) The lower surface of the blow hole 2 should be angled downward toward the inside of the furnace.
(ヘ) 面圧負荷装置及び固定プレートれんが３、プ
ラグ７ａ，７ｂ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。(F) For setting the surface pressure loading device, the fixing plate brick 3, and the plugs 7a, 7b, the work can be done more quickly by using a cassette type or twist set type device.
(ト) 回転式（ロータリ式）のみならず、往復動式
（レシプロ式）とすることもできる。(g) Not only a rotary type but also a reciprocating type can be used.
(チ) 吹込面積を相違するには、相互に単一のプラ
グからなるプラグ同士の面積を異ならせる他
に、相互に複数の同一面積を有する細孔または
透孔から形成し、その数を異ならせることもで
きる。(h) In order to have different blowing areas, in addition to making the areas of single plugs different, they should also be formed from a plurality of pores or through-holes with the same area, and their numbers should be different. You can also
(リ) 三枚プレート方式の吹込み構造にも適用でき
る。(li) It can also be applied to a three-plate type blowing structure.
(ヌ) また、吹込み方向を相互に変えることもでき
る。(J) It is also possible to mutually change the blowing direction.
以上述べてきたごとく、本発明では、摺動プレ
ートれんがに流体吹込面積を相違する複数のプラ
グを着脱自在に装着したので、摺動プレートの微
調整という複雑な操作を要することなく、流体流
入量を正確かつ容易に調整することができるとと
もに、損傷を少なくすることができる。
As described above, in the present invention, since a plurality of plugs with different fluid injection areas are detachably attached to the sliding plate brick, the amount of fluid inflow can be adjusted without the need for complicated operations such as fine adjustment of the sliding plate. can be adjusted accurately and easily, and damage can be reduced.
図はプラグが少量吹込みの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、７ａ，７ｂ：プラグ（ポーラスプラグ
または細孔付プラグ）、８：供給管、９：押圧プ
レート。
The figure is a longitudinal front view of a container for molten metal according to the invention with the plug in the alignment position for small volume injection. In the figure, 1: Storage container, 2: Blow hole, 3: Fixed plate brick, 4: Communication hole, 5: Sliding plate brick, 7a, 7b: Plug (porous plug or plug with pores), 8: Supply pipe, 9: Pressing plate.
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複数のポーラスプラグ若
しくは細孔プラグを間隔を開けて装着し、かつ同
プラグのガス吹込面積を相違させたことを特徴と
する吹込面積を異にする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 gas blowing plug with different blowing areas, characterized in that a plurality of porous plugs or pore plugs that are movable to alignment positions are installed at intervals, and the plugs have different gas blowing areas. Molten metal container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26154084A JPS60145314A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having gas blow plugs of different blow areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26154084A JPS60145314A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having gas blow plugs of different blow areas |
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 |
|---|---|
| JPS60145314A JPS60145314A (en) | 1985-07-31 |
| JPH0143813B2 true JPH0143813B2 (en) | 1989-09-22 |
Family
ID=17363313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26154084A Granted JPS60145314A (en) | 1984-12-10 | 1984-12-10 | Vessel for molten metal having gas blow plugs of different blow areas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145314A (en) |
-
1984
- 1984-12-10 JP JP26154084A patent/JPS60145314A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60145314A (en) | 1985-07-31 |
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