JPS6199561A - Mounting method of refractory plug for closing outflow hole - Google Patents
Mounting method of refractory plug for closing outflow holeInfo
- Publication number
- JPS6199561A JPS6199561A JP22115484A JP22115484A JPS6199561A JP S6199561 A JPS6199561 A JP S6199561A JP 22115484 A JP22115484 A JP 22115484A JP 22115484 A JP22115484 A JP 22115484A JP S6199561 A JPS6199561 A JP S6199561A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- refractory
- outflow hole
- brick
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
- B22D41/46—Refractory plugging masses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は溶融金属収納容器の底部流出孔閉鎖用耐火物栓
の装着方法に関するものであり、主にスライディングノ
ズル方式の容器においてその流出孔の閉鎖を容易にする
ものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for installing a refractory plug for closing the bottom outlet hole of a molten metal storage container, and mainly relates to a method for installing a refractory plug for closing the outlet hole in a sliding nozzle type container. It facilitates closure.
（従来の技術）
従来のスライディングノズルを設置した溶融金属収納容
器は第４図に示すように羽口れんが７内に上ノズルれん
が６で形成される流出孔１を下スライディングノズルプ
レート１１で閉鎖されており、この状態で溶融金属を収
納した場合流出孔１内で溶融金属が凝固し、下スライデ
ィングノズル防ぐため通常は流出孔１゛内に砂を入れて
おき、下スライディングノズルプレート１１を全開状態
にして砂１３を落下させ、ついで溶融金属を流出させる
が、この方法では砂が溶融金属中に混入し金属の清浄度
を低下させる等、品質面、操業面で欠点を有していた。(Prior art) As shown in FIG. 4, in a molten metal storage container equipped with a conventional sliding nozzle, an outflow hole 1 formed by an upper nozzle brick 6 in a tuyere brick 7 is closed by a lower sliding nozzle plate 11. If the molten metal is stored in this state, the molten metal will solidify in the outflow hole 1, and to prevent the lower sliding nozzle from flowing, sand is normally placed in the outflow hole 1, and the lower sliding nozzle plate 11 is fully opened. The sand 13 is dropped, and then the molten metal is flowed out. However, this method has disadvantages in terms of quality and operation, such as the sand getting mixed into the molten metal and reducing the cleanliness of the metal.
かかる欠点を解消する方法として本出願人は第５図に例
示するように上ノズル６で形成される溶融金属流出孔１
を耐火物製の栓２で閉鎖し、これを栓２の下部から押上
機構（図示せず）を用いて栓２を押上げ除去し、溶融金
属を流出させるという方法を発明（特願昭５９−１３３
９６号）し、また溶融金属流出孔１に嵌合する閉鎖用耐
火物栓２を流出孔垂直中心線に対して上方外向に角度を
設け、かつ上面部分を特定した耐火物栓２を発明（特願
昭５９−１０３６３７号）した。さらに流出孔を形成す
る羽口れんが７の熱膨張率よりも小さい熱膨張率の耐火
物栓２を用いた開栓方法を発明（特願昭５９４０８６３
８号）し、それぞれ出願した０以上のように砂等の充填
方式から耐火物の栓方式に変えることによって、品質面
、操業面及び能率面を向上させた。As a method to eliminate such drawbacks, the present applicant proposed a molten metal outflow hole 1 formed by an upper nozzle 6 as illustrated in FIG.
Invented a method in which a plug 2 made of refractory is used to close the plug 2, and a push-up mechanism (not shown) is used to push up and remove the plug 2 from the bottom of the plug 2, allowing the molten metal to flow out. -133
No. 96), and also invented a refractory plug 2 in which the closing refractory plug 2 that fits into the molten metal outflow hole 1 is angled upwardly and outwardly with respect to the vertical center line of the outflow hole, and the upper surface portion is specified ( (Japanese Patent Application No. 103637/1982). Furthermore, we invented a plug opening method using a refractory plug 2 whose coefficient of thermal expansion is smaller than that of the tuyere bricks 7 forming the outflow hole (Japanese Patent Application No. 5940863).
No. 8), and by changing from the filling method of sand etc. to the refractory plug method as in the case of 0 and above, the quality, operation and efficiency were improved.
（発明が解決（、ようどする問題点）
しかしながら前記した栓方式においては溶融金属注出後
の閉鎖が困難で、該栓の流出孔１への装着に長時間を要
していた。すなわち流出孔１は耐火物栓２の開栓により
大量の溶融金属が流出孔から注出されるため、上ノズル
６は第６図に示すように溶損される。この部分に耐火物
栓２を装着さす よ、、３（よ溶融ｆｌＨ１
ｇ□冷ユい後、耐え物栓。(Problem solved by the invention) However, in the above-mentioned plug system, it was difficult to close the plug after pouring out the molten metal, and it took a long time to attach the plug to the outflow hole 1. When the refractory plug 2 is opened, a large amount of molten metal is poured out of the hole 1, so the upper nozzle 6 is damaged by melting as shown in Fig. 6.The refractory plug 2 is attached to this part. Yo,,3(yo melting flH1
G□ After cooling, use a durable stopper.
の外周に不定形耐火物５を付着させ、上ノズル６の上部
から手作業で挿入して装着させる方法がとられていた。The conventional method has been to attach a monolithic refractory 5 to the outer periphery of the nozzle 6 and manually insert it into the upper nozzle 6 from above.
しかしこの方法は容器の冷却に時間が掛り過ぎる欠点が
あった。However, this method has the disadvantage that it takes too much time to cool the container.
（問題点を解決するための手段）
そこで本発明者等は上記欠点を有利に解決するため種々
研究検討を加えた結果なし得た発明であって、その特徴
とするところは、溶融金属容器の底部流出孔１を閉鎖し
ている耐火物栓２を上部へ開栓し、溶融金属を流出させ
る構造の容器において、金属管の先端部に設けた支持体
４に耐火物栓２を固定し、該栓の下部外周面に不定形耐
火物５を装填したのち前記金属管を該容器の底部流出孔
を形成する羽口１２に押し当て、ついで栓２と不定形耐
火物５とを一体的に加圧及び／又は打撃しながら挿入す
る流出孔閉鎖用耐火物栓の装着方法である。(Means for Solving the Problems) Therefore, the inventors of the present invention have carried out various research studies in order to advantageously solve the above-mentioned drawbacks, and have made this invention. In a container structured to allow the molten metal to flow out by opening the refractory plug 2 that closes the bottom outlet hole 1 to the top, the refractory plug 2 is fixed to a support 4 provided at the tip of the metal pipe, After loading the monolithic refractory 5 on the outer peripheral surface of the lower part of the plug, the metal tube is pressed against the tuyere 12 forming the bottom outflow hole of the container, and then the plug 2 and the monolithic refractory 5 are integrally assembled. This is a method for installing a refractory plug for closing an outflow hole, which is inserted while applying pressure and/or impact.
（作 用） 以下図面に基づいて本発明の詳細な説明する。(for production) The present invention will be described in detail below based on the drawings.
前記したように流出孔１を閉鎖している耐火物栓２の開
栓により溶融金属が流出し、ノズルれんが６で形成され
る流出孔１は第６図のように溶損さ九る。この溶損個所
に耐火物栓２の閉鎖装着に際し、第１図の如く金属管３
の先端をノズルれんが６あるいは羽口れんが７上に流出
孔１と同心円になるようにして押当てる。As described above, when the refractory stopper 2 that closes the outflow hole 1 is opened, the molten metal flows out, and the outflow hole 1 formed by the nozzle brick 6 is eroded and damaged as shown in FIG. When closing and installing the refractory plug 2 at this melted location, the metal pipe 3
Press the tip of the nozzle brick 6 or the tuyere brick 7 so that it is concentric with the outflow hole 1.
金属管３の内側には、耐火物栓２が支持体４により固定
されており、前記栓２の下部外周にノズルれんが６の溶
損状態に応じて不定形耐火物５が装填していて支持体９
からの圧力によって支持体４が降下し、耐火物栓２及び
不定形耐火物５を一体的に流出孔１の羽口１２へ閉鎖装
着される。A refractory plug 2 is fixed to the inside of the metal tube 3 by a support 4, and a monolithic refractory 5 is loaded and supported on the outer periphery of the lower part of the plug 2 depending on the melting state of the nozzle brick 6. body 9
The support body 4 is lowered by the pressure from the outlet hole 1, and the refractory plug 2 and the monolithic refractory 5 are integrally closed and attached to the tuyere 12 of the outflow hole 1.
支持体４は第２図のようにノズれんが６あるいは羽口れ
んが７の上面に接するまで降下させることによって耐火
物栓２は流出孔１の所定位置に不定形耐火物５を介して
閉鎖装着するのである。第３図は耐火物栓２が流出孔１
の羽口１２に装着された状態を示す。The support 4 is lowered until it touches the upper surface of the nozzle brick 6 or the tuyere brick 7 as shown in FIG. 2, and the refractory plug 2 is closed and installed in a predetermined position of the outflow hole 1 via the monolithic refractory 5. It is. Figure 3 shows that the refractory plug 2 is connected to the outflow hole 1.
It shows the state in which it is attached to the tuyere 12 of.
前記の耐火物栓２とス定形耐火物５との間には必要によ
って離型剤を塗布して焼付防止を考慮することもできる
。なお、図中１０は鉄皮である。If necessary, a release agent may be applied between the refractory plug 2 and the square shaped refractory 5 to prevent seizure. In addition, 10 in the figure is an iron skin.
（発明の効果）
以上のように本発明方法によれば溶融金属容器を冷却す
る必要がなく、かつその都度ノズルれんがの取替えもな
く栓のみを所定位置に確実に閉Ｘｉ装着することができ
る等のすぐれた効果を奏する。(Effects of the Invention) As described above, according to the method of the present invention, there is no need to cool the molten metal container, and only the stopper can be reliably closed in a predetermined position without having to replace the nozzle brick each time. It has excellent effects.
第１〜第３図は本発明の実施態様を示し、第１図は金属
管に耐火物栓と不定形耐火物が装填され流出孔を閉鎖装
着する前の状態を示す断面図、第２図は閉鎖装着時の断
面図、第３図は閉鎖装着した後の状態を示す断面図、第
４図は従来の砂方式による閉鎖状態を示す断面図、第５
図は耐火物栓方式を示す断面説明図、第６図は流出孔の
溶損状況を示す断面図である。
１・・・流出孔 ２・・・耐火物栓３・・・金
属管 ４ ・支持体５・・・不定形耐火物
６・・・ノズルれんが７・・・羽口れんが ８・・
ｆ年イ普耘紮９・・・支持捧1 to 3 show embodiments of the present invention; FIG. 1 is a cross-sectional view showing the state before the metal tube is loaded with a refractory plug and monolithic refractory and the outflow hole is closed; FIG. 3 is a sectional view showing the state after the closure is installed, FIG. 4 is a sectional view showing the closed state using the conventional sand method, and FIG.
The figure is an explanatory cross-sectional view showing the refractory plug system, and FIG. 6 is a cross-sectional view showing the state of erosion of the outflow hole. 1... Outflow hole 2... Refractory plug 3... Metal pipe 4 - Support 5... Monolithic refractory
6... Nozzle brick 7... Tuyere brick 8...
F Year 2019 Puyonggu 9...Support offering
Claims (1)
を上部へ開栓し、溶融金属を流出させる構造の容器にお
いて、金属管の内側先端部に設けた支持体に栓を固定し
、該栓の下部外周面に不定形耐火物を装填したのち、前
記金属管を該容器の底部流出孔を形成するノズルれんが
あるいは羽口れんがの上面に押し当て、ついで栓と不定
形耐火物とを一体的に加圧及び／又は打撃しながら挿入
することを特徴とする流出孔閉鎖用耐火物栓の装着方法
。In a container structured to allow the molten metal to flow out by opening the refractory stopper that closes the bottom outflow hole of the molten metal storage container to the top, the stopper is fixed to a support provided at the inner tip of the metal pipe, After loading the monolithic refractory onto the outer peripheral surface of the lower part of the plug, the metal tube is pressed against the upper surface of a nozzle brick or tuyere brick that forms the bottom outlet hole of the container, and then the plug and the monolithic refractory are connected. A method for installing a refractory plug for closing an outflow hole, which is characterized by inserting the refractory plug while integrally applying pressure and/or impact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22115484A JPS6199561A (en) | 1984-10-23 | 1984-10-23 | Mounting method of refractory plug for closing outflow hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22115484A JPS6199561A (en) | 1984-10-23 | 1984-10-23 | Mounting method of refractory plug for closing outflow hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6199561A true JPS6199561A (en) | 1986-05-17 |
Family
ID=16762317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22115484A Pending JPS6199561A (en) | 1984-10-23 | 1984-10-23 | Mounting method of refractory plug for closing outflow hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6199561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02217154A (en) * | 1988-10-18 | 1990-08-29 | Shinagawa Refract Co Ltd | Tool and method for opening nozzle in slide valve device for molten metal vessel |
-
1984
- 1984-10-23 JP JP22115484A patent/JPS6199561A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02217154A (en) * | 1988-10-18 | 1990-08-29 | Shinagawa Refract Co Ltd | Tool and method for opening nozzle in slide valve device for molten metal vessel |
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