JP2588962B2 - Nozzle opening tool and opening method for molten metal container slide valve device - Google Patents
Nozzle opening tool and opening method for molten metal container slide valve deviceInfo
- Publication number
- JP2588962B2 JP2588962B2 JP1029884A JP2988489A JP2588962B2 JP 2588962 B2 JP2588962 B2 JP 2588962B2 JP 1029884 A JP1029884 A JP 1029884A JP 2988489 A JP2988489 A JP 2988489A JP 2588962 B2 JP2588962 B2 JP 2588962B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- valve device
- slide valve
- nozzle
- metal container
- 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 - Lifetime
Links
Landscapes
- Furnace Charging Or Discharging (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は溶融金属容器に取付けられた溶融金属容器ス
ライドバルブ装置のノズル開口具及び溶融金属容器スラ
イドバルブ装置のノズル開口方法に関する。Description: TECHNICAL FIELD The present invention relates to a nozzle opening tool of a molten metal container slide valve device attached to a molten metal container and a nozzle opening method of the molten metal container slide valve device.
溶融金属容器に受け入れられた溶融金属は10〜90分位
滞留した後、ノズルにより注出されるのが一般的であ
り、この間にノズル内で溶融金属が凝固しないよう、第
11図に示す如くノズル内に充填材が詰めてある。The molten metal received in the molten metal container generally stays for about 10 to 90 minutes and is then poured out by a nozzle, during which time the molten metal is not solidified in the nozzle.
As shown in FIG. 11, the filler is packed in the nozzle.
従つて、スライドプレートを摺動させ、ノズルを
「開」にした場合には、先ず充填材が流出し、その後溶
融金属が流出する機構となつている。Therefore, when the slide plate is slid and the nozzle is opened, the filler first flows out, and then the molten metal flows out.
従来種々の充填材が考案され実用化されているが、溶
融金属容器への溶融金属流入時に充填材が流されて、充
填材の量が不足し（第９図）、又は溶融金属の充填材へ
の侵入による地金凝固（第10図）、等により、スライド
プレートを全開にした後、自然に溶融金属が流出する比
率（以下自然開口率という）は未だに100％に達してお
らず約70〜95％であり、自然開口しない場合には、酸素
ランスを用いて強制的にノズルを開口する必要があるた
め、次に示す如く種々の問題があることは周知のところ
である。Conventionally, various fillers have been devised and put into practical use. However, when the molten metal flows into the molten metal container, the filler is flown, and the amount of the filler is insufficient (FIG. 9). After the slide plate is fully opened due to infiltration into the metal (Fig. 10), etc., the ratio of molten metal flowing out naturally (hereinafter referred to as the natural opening ratio) has not yet reached 100% and has not reached about 70%. It is well known that there are various problems as described below because the nozzle must be forcibly opened using an oxygen lance when the nozzle does not open spontaneously.
１）酸素ランスによるノズル開口作業は危険であり、作
業者は常に危険作業を強制される。1) The operation of opening the nozzle by the oxygen lance is dangerous, and the worker is always forced to perform the dangerous operation.
２）酸素ランスによりノズルを構成している耐火物が溶
損され、その寿命が短くなる。又最悪の場合には異常溶
損により漏鋼することもある。2) The refractory constituting the nozzle is melted and damaged by the oxygen lance, and its life is shortened. In the worst case, steel may leak due to abnormal melting.
３）酸素ランスによるノズル開口作業は時に長時間（３
分以上）要する場合があり、特に連続鋳造における取鍋
交換で許容される時間は一般に２〜３分であるため、連
続鋳造での連々鋳に支障をきたすことがある。従つて、
５チヤージの連々鋳すべきところが、３チヤージで中止
せざるを得なくなる場合がある。3) The nozzle opening work with the oxygen lance sometimes takes a long time (3
Or more) in some cases, and in particular, the time allowed for ladle replacement in continuous casting is generally 2 to 3 minutes, which may hinder continuous casting in continuous casting. Therefore,
There are cases where the place to be cast five times in a row must be stopped in three times.
４）酸素ランス用酸素及び鉄パイプその他の器具の用意
が必要となる。4) It is necessary to prepare oxygen lance and iron pipes and other equipment.
本発明者等は前記問題点を解決すべく種々検討、実験
の結果、本発明の開発に成功したものであり、本発明の
技術的構成は前記特許請求の範囲各項に明記したとおり
であるが、本発明の具体的数例を示す添付図面に基づい
て詳述する。The present inventors have succeeded in developing the present invention as a result of various studies and experiments in order to solve the above problems, and the technical structure of the present invention is as specified in the respective claims. However, the present invention will be described in detail with reference to the accompanying drawings showing specific examples of the present invention.
第１図は本発明ノズル開口具（以下開口具という）を
充填材３上部にセツトした状態を示す縦断面図であり、
図示の如く、充填材上部を平面にした後、開口具を充填
材に密着させ、周囲をモルタル７によりノズル受けれん
が５に固着する。FIG. 1 is a longitudinal sectional view showing a state in which a nozzle opening tool of the present invention (hereinafter referred to as an opening tool) is set above a filler 3.
As shown in the drawing, after the upper portion of the filler is made flat, the opening tool is brought into close contact with the filler, and the periphery is fixed to the nozzle receiver 5 by mortar 7.
第２図は前記開口具の縦断面図であり、耐火性シート
８に溶融部材９を機械的（リベツト又は鋼線等による一
体化結合）又は接着剤等により貼り合わせた構造とす
る。耐火性シートとしてはフェノール樹脂、ピッチ等の
有機バインダーでセラミックファイバーを成形したもの
で、常温で可縮性、可塑性のあるものが好ましい。充填
材の上にセットされたときに、充填材表面の凹凸を吸収
し密着性が向上するため、溶鋼の充填材への浸透抑制に
効果がある。該シートの厚みは１〜10mm、好ましくは１
〜5mmである。1mm未満では溶鋼浸透防止効果がなく、10
mmを超えると可塑性が不充分となる。このような耐火性
シートは常温でも機械的強度が比較的低いため、セット
時のハンドリングが難しいと言う欠点がある。そのため
常温で強度のある溶融部材と接合することで従来方式の
諸欠点を解決するものである。FIG. 2 is a longitudinal sectional view of the opening member, and has a structure in which a melting member 9 is stuck to a refractory sheet 8 mechanically (integrated connection by rivets or steel wires) or by an adhesive. The refractory sheet is formed by molding ceramic fibers with an organic binder such as phenolic resin or pitch, and is preferably a sheet that is shrinkable and plastic at room temperature. When set on the filler, it absorbs irregularities on the surface of the filler and improves the adhesiveness, which is effective in suppressing the penetration of molten steel into the filler. The thickness of the sheet is 1 to 10 mm, preferably 1
~ 5mm. If it is less than 1 mm, there is no effect of preventing molten steel penetration, and 10
If it exceeds mm, the plasticity becomes insufficient. Such a refractory sheet has a relatively low mechanical strength even at room temperature, and thus has a drawback that handling at the time of setting is difficult. Therefore, various disadvantages of the conventional method are solved by joining with a molten member having strength at room temperature.
溶融部材９の形状は第３図または第４図の形状でもよ
い。The shape of the melting member 9 may be the shape shown in FIG. 3 or FIG.
第５図は施工時、充填材３により耐火性シート８が損
傷しないように保護部材11を用いた例を示す。本発明の
ノズル開口具は前述の如き構成からなつており、これら
開口具を用いた溶融金属容器の開口方法を以下に説明す
る。FIG. 5 shows an example in which the protective member 11 is used so that the filler 3 does not damage the refractory sheet 8 during construction. The nozzle opening tool of the present invention has the above-described configuration, and a method of opening a molten metal container using these opening tools will be described below.
第６図に示す如く、インサートノズル４及びノズル受
れんが５のノズルの中に充填材３を詰め、ならし装置12
により上部を平面にならす。平面になつた充填材３の上
部に開口具（第２、３、４、５図）の外周縁部にモルタ
ル７を第７図のようにリング状に付着させたものを開口
具上面の挿入補助用係止部14をセツト装置13に係止して
充填材３の上面に押し付け、ノズル受れんが５にセツト
する。この場合、ならし装置を使用せず、開口具をセツ
トする時にならしを兼ねても良い。又ならさずに投入し
た状態のまゝでもよい。As shown in FIG. 6, the filling material 3 is packed in the nozzle of the insert nozzle 4 and the nozzle brick 5, and the leveling device 12 is used.
To make the upper part flat. As shown in FIG. 7, a ring-shaped mortar 7 is attached to the outer peripheral edge of the opening tool (FIGS. 2, 3, 4, and 5) above the flat filler 3 and inserted into the upper surface of the opening tool. The auxiliary locking portion 14 is locked to the setting device 13 and pressed against the upper surface of the filler 3, and the nozzle receiver 5 is set to 5. In this case, without using a leveling device, the leveling may be performed when the opening tool is set. It may be in the state of being inserted without being repeated.
次に開口手順を第１図及び第11図に基づき説明する。 Next, the opening procedure will be described with reference to FIG. 1 and FIG.
溶融金属２の入つた溶融金属容器１に取り付けられた
スライドバルブ装置のスライドプレート６を全開にし、
ノズルを開にすると前述した充填材３が落下流出する。Fully open the slide plate 6 of the slide valve device attached to the molten metal container 1 containing the molten metal 2,
When the nozzle is opened, the above-mentioned filler 3 falls and flows out.
充填材３が落下流出することにより、ノズル開口具の
下部に間隙が生じて、耐火性シート８は溶融金属２のヘ
ツド圧力により破壊され溶融金属２は自然流出する。When the filler 3 falls and flows out, a gap is formed below the nozzle opening, and the refractory sheet 8 is broken by the head pressure of the molten metal 2 and the molten metal 2 flows out naturally.
次に各部材に必要な具備特性について説明する。 Next, the necessary characteristics of each member will be described.
（１） 耐火性シート： 溶融金属に溶損されない耐火性を有し、かつ溶融金属
を確実にシールすることが出来る。(1) Fire-resistant sheet: It has fire resistance that is not melted by the molten metal and can reliably seal the molten metal.
常温では多少の柔軟性を有する。It has some flexibility at room temperature.
実用例として黒鉛シート、品川白煉瓦（株）製セラテ
ツクス・シートの如きセラミツクスフアイバー成形品
等。Practical examples include graphite sheets and molded articles of ceramic fibers such as CERATEX sheets manufactured by Shinagawa White Brick Co., Ltd.
（２） 溶融部材： 注入された溶融金属に短時間（数分間）で容易に溶融
される材質は鋼板、銅板で、溶湯量、溶湯温度、ノズル
受けれんがの形状、溶湯の容器内滞留時間等種々の要因
によりその厚さが決定されるが、数mm〜数cm厚さとな
る。(2) Melting member: The material that is easily melted in a short time (several minutes) into the poured molten metal is a steel plate or a copper plate. Although the thickness is determined by various factors, the thickness is several mm to several cm.
（３） 保護部材： 常温で充填材との摩擦により破損しない強度を有し、
溶融金属により耐火性シートを伝導する熱で容易に消
失、又は耐火性シートと共に溶融金属のヘツド圧力で破
壊される強度である。(3) Protective member: has strength that does not break at normal temperature due to friction with the filler,
The strength that is easily lost by the heat conducted through the refractory sheet by the molten metal or destroyed by the head pressure of the molten metal together with the refractory sheet.
使用例としてボール紙、コルク材、発泡スチロール板
等が好ましい。Preferable examples of use include cardboard, cork material, styrofoam board and the like.
本発明による溶融金属容器のノズル開口具及び方法に
よれば従来の充填材のみ使用したノズル開口方法に比べ
確実にノズルを開口出来る為、 前述の如き、従来技術における問題点は全て解消さ
れ、安全な作業、確実な操業が可能となる。又最近では
レードルフアーネス方式、RH方式等炉外精錬を言う場合
が増え、溶融金属の容器内滞留時間が長くなつてきてお
り、それに伴つて自然開口率が低下しているのが現状で
ある。このような場合でも本発明によれば何ら問題なく
自然開口が可能である。According to the nozzle opening tool and method for a molten metal container according to the present invention, since the nozzle can be opened more reliably than the conventional nozzle opening method using only the filler, as described above, all the problems in the prior art are solved and the safety is improved. Work and reliable operation are possible. Recently, the use of out-of-furnace refining such as the ladle furnace method and the RH method has been increasing, and the residence time of molten metal in containers has been prolonged. . Even in such a case, according to the present invention, natural opening is possible without any problem.
実施例としてＡ社90トン取鍋での成功例を以下に述べ
る。As an example, a successful example using a 90-ton ladle of Company A is described below.
第８図に示す如く、材質及び形状を持つた開口具を使
用し、実施例は５回であつたが、受湯後約60分経過後の
自然開口率は100％であつた。As shown in FIG. 8, an opening tool having a material and a shape was used. In the example, the number of times was 5 times.
第１図は本発明開口具をスライドバルブ装置にセツトし
た状態を示す縦断面略図、第２図〜第５図は本発明開口
具の数例を示す縦断面図、第６図〜第８図は開口具を適
用する例を示す略図、第９図は従来の充填材の流出状態
を示す略図、第10図は充填材への地金侵入態様を示す略
図、第11図は従来方式を示す縦断面図であり、図中： １……溶融金属容器、２……溶融金属、 ３……充填材、４……インサートノズル、 ５……ノズル受れんが、６……スライドプレート、 ７……モルタル、８……耐火性シート、 ９……溶融部材 11……保護部材、12……ならし装置、 13……セツト装置、14……挿入補助用係止部。FIG. 1 is a schematic vertical sectional view showing a state in which the opening device of the present invention is set in a slide valve device, FIGS. 2 to 5 are vertical sectional views showing several examples of the opening device of the present invention, and FIGS. Is a schematic diagram showing an example of applying the opening tool, FIG. 9 is a schematic diagram showing the state of flow of the conventional filler, FIG. 10 is a schematic diagram showing the state of metal infiltration into the filler, and FIG. It is a longitudinal sectional view, in the figure: 1 ... molten metal container, 2 ... molten metal, 3 ... filler, 4 ... insert nozzle, 5 ... nozzle nozzle, 6 ... slide plate, 7 ... Mortar, 8: Fireproof sheet, 9: Melting member 11: Protective member, 12: Leveling device, 13: Set device, 14: Locking portion for insertion assistance.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 奥田 茂 兵庫県加古川市野口町古大内332―22 (72)発明者 寺崎 守 兵庫県加古郡播磨町本荘206―１ (72)発明者 吉村 裕次 岡山県備前市伊部1931 (56)参考文献 特開 昭51−117127（ＪＰ，Ａ) 特開 昭61−99561（ＪＰ，Ａ) 実開 昭50−107706（ＪＰ，Ｕ) 欧州公開62790（ＥＰ，Ａ１) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeru Okuda 332-22 Koouchi, Noguchi-cho, Kakogawa-shi, Hyogo (72) Inventor Mamoru Terasaki 206-1 Honjo, Harimacho, Kako-gun, Hyogo (72) Inventor Yuji Yoshimura 1931, Ibe, Ibe, Bizen-shi, Okayama (56) Reference JP-A-51-117127 (JP, A) JP-A-61-99561 (JP, A) Japanese Utility Model Showa 50-107706 (JP, U) European publication 62790 (EP, A1)
Claims (4)
とし、上層に溶融金属により容易に溶融される材質から
なる溶融部材を積層、接合したことを特徴とする溶融金
属容器スライドバルブ装置のノズル開口具。1. A slide valve device for a molten metal container, comprising: a lower layer made of a refractory sheet having flexibility at room temperature, and a laminated member joined to an upper layer by a melting member made of a material easily melted by a molten metal. Nozzle opening tool.
１記載の溶融金属容器スライドバルブ装置のノズル開口
具。2. A nozzle opening tool for a molten metal container slide valve device according to claim 1, wherein said molten member is a steel plate or a copper plate.
けてなる、請求項１または２の何れかに記載の溶融金属
容器スライドバルブ装置のノズル開口具。3. A nozzle opening tool for a molten metal container slide valve device according to claim 1, wherein a protective member is integrally provided on the surface of the refractory sheet.
ル孔内に粒状充填材を充填し、該スライドバルブ装置を
開状態として前記充填材を自然落下させるスライドバル
ブ装置のノズル開口方法において、常温で柔軟性を有す
る耐火性シートと溶融部材とを積層・接合してなるノズ
ル開口具を前記充填材上面に載置し、溶融金属容器内に
溶融金属を受湯したのち、スライドバルブ装置を開状態
とし、前記充填材を下方に排出し、前記溶融金属のヘッ
ド圧力により前記ノズル開口具を破壊し、溶融金属を流
出させることを特徴とする溶融金属容器用スライドバル
ブ装置のノズル開口方法。4. A method of opening a nozzle of a slide valve device for filling a particulate filler into a nozzle hole of a slide valve device for a molten metal container, and opening the slide valve device to allow the filler to drop naturally at room temperature. A nozzle opening tool formed by laminating and joining a refractory sheet having flexibility and a melting member is placed on the upper surface of the filler, and after the molten metal is received in the molten metal container, the slide valve device is opened. Discharging the filler downward, breaking the nozzle opening tool by the head pressure of the molten metal, and allowing the molten metal to flow out, the nozzle opening method of the slide valve device for a molten metal container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1029884A JP2588962B2 (en) | 1988-10-18 | 1989-02-10 | Nozzle opening tool and opening method for molten metal container slide valve device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63-260416 | 1988-10-18 | ||
| JP26041688 | 1988-10-18 | ||
| JP1029884A JP2588962B2 (en) | 1988-10-18 | 1989-02-10 | Nozzle opening tool and opening method for molten metal container slide valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02217154A JPH02217154A (en) | 1990-08-29 |
| JP2588962B2 true JP2588962B2 (en) | 1997-03-12 |
Family
ID=26368135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1029884A Expired - Lifetime JP2588962B2 (en) | 1988-10-18 | 1989-02-10 | Nozzle opening tool and opening method for molten metal container slide valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2588962B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50107706U (en) * | 1974-02-13 | 1975-09-03 | ||
| JPS51117127A (en) * | 1975-04-09 | 1976-10-15 | Nippon Steel Corp | Block method of pouring hole |
| DE3115108A1 (en) * | 1981-04-14 | 1982-10-28 | Purmetall Gesellschaft für Stahlveredelung GmbH u. Co Betriebskommanditgesellschaft, 4200 Oberhausen | VESSEL FOR METALLURGICAL MELTING |
| JPS6199561A (en) * | 1984-10-23 | 1986-05-17 | Nippon Steel Corp | Mounting method of refractory plug for closing outflow hole |
-
1989
- 1989-02-10 JP JP1029884A patent/JP2588962B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02217154A (en) | 1990-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1099890A (en) | Breaker cores | |
| CA1266776A (en) | Lining for protecting the interior of a metallurgical vessel and a method for forming said lining | |
| US4194730A (en) | Molten metal handling vessels | |
| JP2588962B2 (en) | Nozzle opening tool and opening method for molten metal container slide valve device | |
| CA1058379A (en) | Process of ingot casting | |
| JPH0431779B2 (en) | ||
| CA1075898A (en) | Vessels for containing molten metals | |
| US4333630A (en) | Mold bottom and stool protector construction | |
| JPS645992B2 (en) | ||
| EP0180388B1 (en) | Containers for molten metal | |
| US4077600A (en) | Ingot mold base member | |
| CN220560405U (en) | Ladle | |
| JPH0116235B2 (en) | ||
| JP2520451Y2 (en) | Support structure for upper lining material of converter furnace body | |
| JP2690500B2 (en) | How to install a refractory block | |
| JPS58173076A (en) | Method for opening hole of charging nozzle | |
| US4809946A (en) | Hot top with sealing angle bar | |
| JPH0762168B2 (en) | Vacuum degassing furnace recirculation pipe repair method | |
| JPH0587466A (en) | Installing method for internal lining for molten metal holding vessel or the like | |
| CA1178020A (en) | Anchored refractory inserts for ingot mold stools | |
| JPH05329623A (en) | Method for preventing nozzle clogging in molten metal vessel | |
| JP2023141704A (en) | Installation method for stave cooler at blast furnace and installation structure of stave cooler | |
| JPH0644511Y2 (en) | Porous plug | |
| JPH0524154U (en) | Precast block for molten metal container | |
| JPH02433Y2 (en) |