JPS61246305A - Method and apparatus for removing slag from molten metal - Google Patents
Method and apparatus for removing slag from molten metalInfo
- Publication number
- JPS61246305A JPS61246305A JP8604585A JP8604585A JPS61246305A JP S61246305 A JPS61246305 A JP S61246305A JP 8604585 A JP8604585 A JP 8604585A JP 8604585 A JP8604585 A JP 8604585A JP S61246305 A JPS61246305 A JP S61246305A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- molten metal
- container
- blowing
- gas
- 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
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/005—Removing slag from a molten metal surface
- B22D43/007—Removing slag from a molten metal surface by using scrapers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、熔融金属のスラグ除去方法および装置に関す
る。特に、溶銑のような溶融金属を脱珪、脱燐、脱硫処
理する場合に生じるスラグの連続的な除去方法および装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for removing slag from molten metal. In particular, the present invention relates to a method and apparatus for continuously removing slag generated when molten metal such as hot metal is subjected to desiliconization, dephosphorization, and desulfurization treatments.
(従来の技術)
近年、極低P鋼、極低Swiに対する要望が強(なり、
また溶銑の脱珪処理を必要とする場合が生じており、こ
れに伴って、溶銑の精錬は、転炉々内精錬から炉外精錬
でSi、 S、 Pを各個別のプロセスで処理するよう
になって来ている。こうした溶銑の冶金的予備処理技術
の開発は、製造鋼種の高級化傾向が求められる現在では
、増々必要となってきている。(Conventional technology) In recent years, there has been a strong demand for ultra-low P steel and ultra-low Swi.
In addition, there are cases where it is necessary to desiliconize hot metal, and as a result, the refining of hot metal has changed from in-furnace refining to outside-furnace refining to treat Si, S, and P in separate processes. It's becoming. The development of such metallurgical pretreatment technology for hot metal is becoming more and more necessary in today's world, where there is a trend toward higher quality steel products.
しかし、上述のような各精錬プロセスで発生するスラグ
は、次の冶金反応進行のために冶金処理終了後すみやか
にあるいは同時的に除去する必要がある。However, the slag generated in each refining process as described above needs to be removed immediately or simultaneously after the metallurgical treatment is completed in order to proceed with the next metallurgical reaction.
そのような場合のスラグ除去の技術としてはすでに多く
のものが提案されているが、それらは、■冶金処理が終
了した後、溶銑が入った取鍋や溶銑車などの容器を除滓
場に移動させ、溶銑表面上に浮遊しているスラグを、機
械的往復運動をする掻板で掻き取る方式と、■真空発生
装置と連結した°吸込口を溶銑表面に近づけ、その距離
をコントロールしながら、浮遊するスラグを吸い取る方
式とに大別される。Many technologies have already been proposed for removing slag in such cases, but these include: ■After the metallurgical treatment is completed, containers such as ladles and hot metal cars containing hot metal are sent to a slag removal site. The slag is moved and the slag floating on the surface of the hot metal is scraped off using a scraping plate that moves mechanically in reciprocating motion. There are two main types of methods: 1) and 2) methods that suck up floating slag.
前記の往復運動をする掻板方式は、長いアームの先端に
、耐火物で覆われた掻板を取り付け、浮遊スラグを掻き
集め、排滓端から掻き出す作業を繰り返すが、この時、
浮遊しているスラグは掻き板の左右に逃げることが多く
、さらに、溶銑表面を強力に掻き回すため、浮上してい
るスラグ層中に、粒鉄が捕捉されたまま掻き出されるこ
とになり、効率、歩留りの面で非常に不満足な結果とな
っている。In the above-mentioned reciprocating scraper method, a scraper covered with refractory is attached to the tip of a long arm, and the work of scraping up floating slag and scraping it from the slag end is repeated, but at this time,
Floating slag often escapes to the left and right of the scraping plate, and since the surface of the hot metal is stirred strongly, iron particles are trapped in the floating slag layer and scraped out, increasing efficiency. , the results are very unsatisfactory in terms of yield.
一方、上述の吸引方式は、浮遊している流動性の良いス
ラグの場合は、連続的に吸い寄せ、吸引出来ると言う利
点があるが、冶金処理上、度々発生する塊状に成長した
スラグの場合は、吸引口の大きさく排気能力で決定され
るが通常は150〜200II!ff+程度)、溶銑表
面との距離(通常10mm前後)によりスラグ吸引は制
約され、除去不可となる場合が多い。On the other hand, the above-mentioned suction method has the advantage of being able to continuously draw in and suck out floating slag with good fluidity, but it cannot handle slag that has grown into lumps that often occur during metallurgical processing. The size of the suction port is determined by the exhaust capacity, but it is usually 150 to 200 II! ff+) and the distance to the hot metal surface (usually around 10 mm), slag suction is restricted and often cannot be removed.
(発明が解決しようとする問題点)
かくして、本発明の目的は、効率良く、浮遊するスラグ
を集め、連続的にスラグ除去できる方式を提供すること
である。(Problems to be Solved by the Invention) Thus, an object of the present invention is to provide a system that can efficiently collect floating slag and continuously remove the slag.
本発明の別の目的は、溶銑取鍋における脱硫、脱燐ある
いは脱珪処理時に生成するスラグを直ちに取鍋内1箇所
に集めて連続的に掻き出す方式を提供することである。Another object of the present invention is to provide a system in which slag generated during desulfurization, dephosphorization, or desiliconization treatment in a hot metal ladle is immediately collected at one location in the ladle and continuously scraped out.
(問題点を解決するための手段)
ところで、前述のような溶銑予備処理に際して効率良(
冶金反応を行わせるためには、粉状の処理材が溶銑中深
く入ると同時に、溶銑の対流により、均一に処理材と接
触することが必要である。(Means for solving the problem) By the way, it is possible to efficiently (
In order to carry out a metallurgical reaction, it is necessary for the powdered treatment material to enter deeply into the hot metal and at the same time come into uniform contact with the treatment material due to the convection of the hot metal.
現在、このためには浸漬ノズルを介した気体同伴粉体吹
込み方式が広く採用されている。Currently, gas-entrained powder injection via submerged nozzles is widely used for this purpose.
そこで本発明者らは、粉体吹込み技術とスラグ除去技術
を一体的に結合させることにより、効率良くかつ連続的
にスラグ除去を行う方式が可能になることに着目し、種
々検討の結果、単数または複数本からなる斜めに昇降す
る粉体吹込み用浸漬ランス、溶銑容器の傾転装置および
連続スラグ掻き出し装置を組み合わせて配置することに
より、前述の目的が達成されることを知り、本発明を完
成した。Therefore, the inventors of the present invention focused on the possibility of an efficient and continuous slag removal method by integrally combining powder injection technology and slag removal technology, and as a result of various studies, It was discovered that the above-mentioned object can be achieved by combining and arranging one or more diagonally rising and falling powder injection immersion lances, a tilting device for a hot metal container, and a continuous slag scraping device, and based on this invention, the present invention was developed. completed.
よって、本発明の要旨とするところは、傾転した容器内
溶融金属に浸漬ランスを介6して気体同伴処理材を吹き
込みスラグを生成させるとともに、該溶融金属内を浮上
する気泡の作用で該溶融金属内に旋回流れを形成させ、
生成スラグを該旋回流れにのせて容器の一端に浮上集積
させつつ、該生成スラグを容器外へ掻き出すことを特徴
とする、溶融金属のスラグ除去方法である。Therefore, the gist of the present invention is to generate slag by blowing a gas-entrained treatment material into molten metal in a tilted container through an immersion lance, and to generate slag by the action of air bubbles floating in the molten metal. Forming a swirling flow within the molten metal,
This method of removing slag from molten metal is characterized by scraping the generated slag out of the container while floating and accumulating the generated slag on the swirling flow at one end of the container.
さらに、本発明の要旨とするところは、傾転自在の溶融
金属収容容器、気体同伴処理材吹込み用の浸漬ランス、
および連続スラグ掻出し装置を備え、前記浸漬ランスは
前記容器の傾転位置において溶融金属内に傾斜浸漬自在
に構成し、かつ前記スラグ掻出し装置は前記容器の傾転
位置の最低地点における容器端部に近接自在に配置され
ている、溶融金属のスラグ除去装置である。Furthermore, the gist of the present invention is a tiltable molten metal container, an immersion lance for blowing gas-entrained treatment material,
and a continuous slag scraping device, the immersion lance is configured to be freely immersed obliquely into the molten metal at the tilting position of the container, and the slag scraping device is arranged at the end of the container at the lowest point of the tilting position of the container. This is a molten metal slag removal device that is disposed in close proximity to the molten metal.
上記浸漬ランスは好ましくは2以上の複数設けられるが
、その配置、浸漬深さは、特に制限ないが、本発明にあ
っては吹込み気体の気泡の作用によって溶融金属にひと
つの大きな旋回流れを与えるものであることから、その
旋回流が溶融金属全体を巻き込むように、つまり旋回流
が容器の一端から一端にまで到達するようにするのが好
ましい。Preferably, a plurality of two or more immersion lances are provided, but their arrangement and immersion depth are not particularly limited, but in the present invention, one large swirling flow is created in the molten metal by the action of bubbles of blown gas. Therefore, it is preferable that the swirling flow involves the entire molten metal, that is, that the swirling flow reaches from one end of the container to the other.
具体的には容器の傾動中心軸に平行にかつ傾動特上側方
向にわずかに偏心した位置にそれぞれ均等間隔に配置す
るのが好ましい。このように配置させることによって、
各浸漬ランスからの吹込み気体の気泡の作用により上記
生成スラグは溶融金属の旋回流れに同伴して転勤位置の
最低地点における容器端部、つまり転動軸を中心に浸漬
ランス配置側と反対側の容器端部近傍に浮遊、集積する
のである。Specifically, it is preferable that they be arranged parallel to the central axis of the tilting of the container and slightly eccentrically in the upward direction of the tilting, and at equal intervals. By arranging it like this,
Due to the action of the bubbles of the blown gas from each immersion lance, the generated slag accompanies the swirling flow of molten metal to the end of the container at the lowest point of the transfer position, that is, the side opposite to the immersion lance arrangement side with the rolling axis as the center. It floats and accumulates near the edge of the container.
容器端部に近接して配置されるスラグ掻出し装置は、容
器端部に近接自在に配置されるものであれば特に制限は
ないが、より好ましくは、無端走行体、例えば無端チェ
ーンにスラグ掻き板を一定間隔に取り付けたものである
。このスラグ掻き板には溶融金属との分離効果を上げる
ため、また過度の攪拌作用を及ぼさないようにその形状
を特殊なものとしてもよいが、単に垂直板を無端走行体
に一定間隔で取り付けただけのものであってもよい。本
発明によれば、上述の旋回流によって浮遊、集積したス
ラグは一種の盛り上がりを呈し、熔融金属との分離は特
に良好に行われる。The slag scraping device disposed close to the end of the container is not particularly limited as long as it can be disposed close to the end of the container, but it is more preferable that the slag scraping device be disposed close to the end of the container. It consists of plates attached at regular intervals. This slag scraping plate may have a special shape to increase the separation effect from the molten metal and to prevent excessive stirring, but it is possible to simply attach vertical plates to an endless running body at regular intervals. It may be just for you. According to the present invention, the slag suspended and accumulated by the above-mentioned swirling flow forms a kind of bulge, and is particularly well separated from the molten metal.
なお、浸漬ランス、スラグ掻出し装置の材質等は従来公
知のものであってもよく、この点にも特に制限はない。Note that the materials of the immersion lance and the slag scraping device may be conventionally known materials, and there are no particular limitations on this point either.
次に、添付図面を参照しながら本発明の一連の工程を述
べる。なお、以下、溶融金属として溶銑を、溶融金属を
収容する容器として「取鍋」を例にとって説明するが、
本発明がそれらにのみ制限されるものでないことは当業
者には容易に理解されよう。Next, a series of steps of the present invention will be described with reference to the accompanying drawings. In addition, below, explanation will be given using hot metal as an example of molten metal and a "ladle" as a container for storing molten metal.
Those skilled in the art will readily understand that the present invention is not limited thereto.
第1図は、本発明によるスラグ除去の様子を略式で説明
する線図、第2図はこのときの取鍋を上からみた略式説
明図である。FIG. 1 is a diagram schematically explaining the state of slag removal according to the present invention, and FIG. 2 is a schematic diagram showing the ladle viewed from above.
図示例において、まず最初に、必要量を払い出された溶
銑10は取鍋12に入れられ、取鍋傾転台13に乗せら
れる。傾転台上の取鍋は、内部の溶銑がこぼれる直前迄
排滓側、つまり図面向って左側に傾けられその位置に停
止する。In the illustrated example, first, the required amount of hot metal 10 is poured into a ladle 12 and placed on a ladle tilt table 13. The ladle on the tilt table is tilted to the slag discharge side, that is, to the left as viewed in the drawing, until the hot metal inside spills out, and the ladle is stopped at that position.
このように取鍋12のセットが終わった後、ホースを連
結した粉体吹き込み用の浸漬ランス14が徐々に下降し
始め、溶銑上面付近からガスを噴出しなから溶銑内部に
突入する。図示例では浸漬ランスは3本使用している。After the ladle 12 is set in this way, the immersion lance 14 for powder blowing connected to the hose begins to gradually descend, blowing out gas from near the top of the hot metal, and then rushing into the inside of the hot metal. In the illustrated example, three immersion lances are used.
そして、上昇するガスで溶銑表面の盛り上がった部分が
反排滓側、つまり図面向って右側に移った位置でランス
昇降ウィンチ(図示せず)は停止し、粉体の吹き込みが
開始される。吹込みガスにより溶銑内に旋回流が生じて
おり、このときの浸漬ランスの深さが最も大きな旋回流
を与える深さである。The lance lifting winch (not shown) stops at a position where the raised part of the surface of the hot metal moves to the opposite side of the slag, that is, to the right side as viewed in the drawing, due to the rising gas, and the blowing of powder starts. A swirling flow is generated in the hot metal by the blown gas, and the depth of the immersion lance at this time is the depth that provides the largest swirling flow.
しばらくして、浮上して来たスラグが排滓側に集積して
来た時点で、昇降装置16に支えられた連続スラグ掻出
し装置18を、下降・伸長(前方への送り出し)させ、
次いで掻出し板20の回転を始める。このときスラグ掻
出し装置前部が集積したスラグを取鍋から掻き出す位置
にくるように調節する。これにより取鍋内一端に集積さ
れたスラグは溶銑予備処理操業時に同時にかつ連続的に
除去される。After a while, when the floating slag has accumulated on the slag discharge side, the continuous slag scraping device 18 supported by the lifting device 16 is lowered and extended (sent forward),
Next, the rotation of the scraping plate 20 is started. At this time, the front part of the slag scraping device is adjusted so that it is in a position to scrape out the accumulated slag from the ladle. As a result, the slag accumulated at one end of the ladle is simultaneously and continuously removed during the hot metal pretreatment operation.
粉体吹き込み用浸漬ランスは、所定量の吹き込みが終わ
った後も、同伴気体の噴出を続け、スラグの集積を行い
、スラグ掻き出し終了時点で取鍋上方に上昇させ気体送
給をストップする。The immersion lance for powder blowing continues to eject entrained gas even after blowing a predetermined amount, accumulates slag, and when the slag scraping is finished, it is raised above the ladle and gas supply is stopped.
また、同時にスラグ掻出し装置も上昇・縮小を始め、待
機位置に戻し運転を停止する。At the same time, the slag scraping device also begins to rise and contract, returns to the standby position, and stops operating.
その後、取鍋を元の位置に復帰させ、次工程に運搬する
。Thereafter, the ladle is returned to its original position and transported to the next process.
次に、本発明を実施例に関連させてさらに詳細に説明す
る。Next, the present invention will be explained in more detail in connection with examples.
実施例
添付図面に示す装置を使い(ただし、ランス本数は2本
)、下掲第1表に示す条件で脱珪および脱硫とスラグ除
去とをそれぞれ同時に行った。比較のため水平に置いた
取鍋に同じく浸漬ノズルで粉体吹き込みを行ってから従
来の方式でスラグを掻き出した。Example Using the apparatus shown in the attached drawings (however, the number of lances was two), desiliconization, desulfurization, and slag removal were performed simultaneously under the conditions shown in Table 1 below. For comparison, powder was blown into a ladle placed horizontally using the same submerged nozzle, and then the slag was scraped out using the conventional method.
第2表にこのときの溶銑の組成を示す。なお、スラグ発
生量はいずれの場合も脱珪スラグが、溶銑トン当たり3
3〜35kg、脱硫スラグが6〜7kgであった。Table 2 shows the composition of the hot metal at this time. In addition, in both cases, the amount of slag generated is 3 ton of desiliconized slag per ton of hot metal.
The amount of desulfurization slag was 6 to 7 kg.
スラグ掻き出し処理に要した時間は本発明の場合、スラ
グ流動性にかかわらず粉体吹込み処理+(1〜3)分で
あったが、従来法では流動性に応じて粉体吹込み処理後
10〜20分を要した。In the case of the present invention, the time required for the slag scraping process was the powder injection process + (1 to 3) minutes regardless of the slag fluidity, but in the conventional method, the time required after the powder injection process was determined according to the fluidity. It took 10-20 minutes.
なお、本発明の場合、粉体吹込み期間中もスラグの掻き
出しを行っているから、上記の1〜3分間というのは粉
体吹込み停止後、スラグ掻き出し終了時までの時間であ
った。In the case of the present invention, the slag is scraped out even during the powder blowing period, so the 1 to 3 minutes mentioned above is the time from when the powder blowing is stopped to when the slag scraping is finished.
しかもその場合の掻き出しスラグ中の粒鉄%は本発明で
は14〜18%であったが比較例では20〜25%であ
った。Moreover, the percentage of granulated iron in the scraped slag in that case was 14 to 18% in the present invention, but 20 to 25% in the comparative example.
第1表
(注)Q:キャリャガス吹込み割合、P:キャリャガス
圧力(発明の効果)
上述のように、本発明は溶銑予備処理に適用した場合、
本発明は溶銑処理とスラグ除去とを一体的に結合して実
施することを可能とするものであって、それにより、実
際操業上は次のような利点がみられる。Table 1 (Note) Q: Carrier gas injection ratio, P: Carrier gas pressure (effect of the invention) As mentioned above, when the present invention is applied to hot metal pretreatment,
The present invention enables hot metal treatment and slag removal to be carried out in an integrated manner, which provides the following advantages in actual operation.
(1)処理時間の短縮:
本発明方式は、従来の主流である粉体吹き込みによる溶
銑予備処理と、その次工程であるスラグ除去処理を一体
的に結合させた新しい方式であり、このことによって、
ハンドリングも含め処理時間の短縮が出来る。例えば、
従来のように機械的往復運動をするスラグ掻き板を使っ
たスラグ掻出し方式、あるいはスラグ吸引方式では所要
時間がほぼ20〜30分であるが、本発明によればほぼ
1〜3分以下になる。(1) Reducing treatment time: The method of the present invention is a new method that integrally combines the conventional mainstream pretreatment of hot metal by powder blowing and the subsequent process, slag removal treatment. ,
Processing time, including handling, can be reduced. for example,
The conventional slag scraping method using a mechanically reciprocating slag scraping plate or slag suction method takes approximately 20 to 30 minutes, but according to the present invention, the time required is approximately 1 to 3 minutes or less. Become.
(2)歩留り向上:
浮遊スラグの生成状況に会わせ、DCCモーフ使用して
スラグ掻板回転速度を自由に変えることにより、粒鉄の
スラグ中への巻き込みを実質上無くし、スラグ掻板の効
率が上昇すると共に、溶銑歩留りが向上する。例えば、
上述の従来のスラグ除去方式に於ける溶銑歩留りロスが
ほぼ0,4〜1゜0 (%)であるのに対し、本発明に
よればそれはほぼ1/3〜1/2になる。(2) Yield improvement: By using DCC morph and freely changing the rotation speed of the slag scraper according to the generation status of floating slag, the entrainment of granular iron into the slag is virtually eliminated and the efficiency of the slag scraper is improved. As the temperature increases, the hot metal yield improves. for example,
While the hot metal yield loss in the above-mentioned conventional slag removal method is approximately 0.4 to 1.0 (%), according to the present invention, the loss is reduced to approximately 1/3 to 1/2.
(3)作業性の向上:
溶銑予備処理とスラグ除去とを同一場所で同時に出来る
ことから、少ない要員で処理可能である。(3) Improved work efficiency: Hot metal preliminary treatment and slag removal can be performed at the same time in the same place, making it possible to perform the process with fewer personnel.
機械的往復運動による掻き出し方式は、スラグを完全に
除去するにはスラグ掻板を取鍋形状に沿って動かすこと
が必要で、この操作が困難であり、またスラグ吸引方式
は、吸引媒体に水を使うときには爆発防止のため吸い込
み口と溶銑表面との距離制御が厳しく求められる。この
ように、いずれも操作が困難である。しかし本発明に係
る方式は、操作は簡単なうえに、目視確認で正確にコン
トロールが出来る。したがって、容易に、かつ正確にコ
ントロール出来ることにより、誤って多量の溶銑を掻き
出した時に起こる溶銑飛散・小爆発等の事故防止は可能
であり、操業上の安全性が著しく向上する。Scraping methods using mechanical reciprocating motion require the slag scraping plate to be moved along the ladle shape in order to completely remove slag, which is difficult. When using molten metal, it is necessary to strictly control the distance between the suction port and the surface of the hot metal to prevent explosions. In this way, both are difficult to operate. However, the method according to the present invention is not only easy to operate, but also allows accurate control through visual confirmation. Therefore, by being able to easily and accurately control it, it is possible to prevent accidents such as hot metal scattering and small explosions that occur when a large amount of hot metal is accidentally scraped out, and operational safety is significantly improved.
第1図は、本発明によるスラグ除去の様子を略式で説明
する線図;および
第2図は、このときの取鍋を上からみた略式説明図であ
る。
出願人 住友金属工業株式会社
代理人 弁理士 広 瀬 章 −
秦2図FIG. 1 is a diagram schematically explaining the state of slag removal according to the present invention; and FIG. 2 is a schematic diagram showing the ladle viewed from above. Applicant Sumitomo Metal Industries Co., Ltd. Agent Patent Attorney Akira Hirose − Qin 2 Dia
Claims (2)
体同伴処理材を吹き込みスラグを生成させるとともに、
該溶融金属内を浮上する気泡の作用で該溶融金属内に旋
回流れを形成させ、生成スラグを該旋回流れにのせて容
器の一端に浮上集積させつつ、該生成スラグを容器外へ
掻き出すことを特徴とする、溶融金属のスラグ除去方法
。(1) A gas-entrained treatment material is blown into the molten metal in the tilted container through an immersion lance to generate slag,
A swirling flow is formed in the molten metal by the action of air bubbles floating in the molten metal, and the generated slag is floated and accumulated at one end of the container on the swirling flow, and the generated slag is scraped out of the container. Features: A method for removing slag from molten metal.
込み用の浸漬ランス、および連続スラグ掻出し装置を備
え、前記浸漬ランスは前記容器の傾転位置において溶融
金属内に傾斜浸漬自在に構成し、かつ前記スラグ掻出し
装置は前記容器の傾転位置の最低地点における容器端部
に近接自在に配置されている、熔融金属のスラグ除去装
置。(2) Equipped with a tiltable molten metal storage container, an immersion lance for blowing gas-entrained treatment material, and a continuous slag scraping device, and the immersion lance can be tilted and immersed into the molten metal at the tilting position of the container. 2. A molten metal slag removal device, wherein the slag scraping device is arranged so as to be able to approach an end of the container at the lowest point of the tilting position of the container.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604585A JPS61246305A (en) | 1985-04-22 | 1985-04-22 | Method and apparatus for removing slag from molten metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604585A JPS61246305A (en) | 1985-04-22 | 1985-04-22 | Method and apparatus for removing slag from molten metal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61246305A true JPS61246305A (en) | 1986-11-01 |
Family
ID=13875704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8604585A Pending JPS61246305A (en) | 1985-04-22 | 1985-04-22 | Method and apparatus for removing slag from molten metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61246305A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320758A2 (en) * | 1987-12-12 | 1989-06-21 | Thyssen Stahl Aktiengesellschaft | Installation and process for slagging metal melts from metallurgical vessels |
FR2701877A1 (en) * | 1993-02-22 | 1994-09-02 | Lorraine Laminage | Method and installation for removing slag from a ladle containing liquid metal |
FR2751566A1 (en) * | 1996-07-26 | 1998-01-30 | Riberry Georges | INSTALLATION FOR CONTINUOUSLY SEPARATING BULK MATERIALS LARGER THAN WATER AND BULK MATERIALS WITH LESS DENSITY THAN WATER OR NEIGHBORHOOD THEREOF |
JP2007167857A (en) * | 2005-12-19 | 2007-07-05 | Yamaichi Kinzoku Kk | Method for treating molten metal |
CN102441665A (en) * | 2011-12-31 | 2012-05-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Slag absorption device and slag removal method using same |
CN102921939A (en) * | 2012-11-12 | 2013-02-13 | 鞍钢集团工程技术有限公司 | Method of gathering and skimming slag in melted iron |
JP2013053363A (en) * | 2011-09-06 | 2013-03-21 | Kobe Steel Ltd | Method for removing slag from ladle |
CN106337103A (en) * | 2015-07-07 | 2017-01-18 | 宝钢工程技术集团有限公司 | Rotary blowing slag-driving device assembly and use method thereof |
CN106975734A (en) * | 2017-01-12 | 2017-07-25 | 辽宁科技学院 | A kind of continuous cast mold inwall deslagging device and method |
CN110508798A (en) * | 2019-09-25 | 2019-11-29 | 杨佳志 | A kind of molten aluminum slag skimming method |
CN110899656A (en) * | 2019-12-11 | 2020-03-24 | 罗绍丽 | Lead oxide scraping device for zinc alloy casting |
-
1985
- 1985-04-22 JP JP8604585A patent/JPS61246305A/en active Pending
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320758A2 (en) * | 1987-12-12 | 1989-06-21 | Thyssen Stahl Aktiengesellschaft | Installation and process for slagging metal melts from metallurgical vessels |
FR2701877A1 (en) * | 1993-02-22 | 1994-09-02 | Lorraine Laminage | Method and installation for removing slag from a ladle containing liquid metal |
FR2751566A1 (en) * | 1996-07-26 | 1998-01-30 | Riberry Georges | INSTALLATION FOR CONTINUOUSLY SEPARATING BULK MATERIALS LARGER THAN WATER AND BULK MATERIALS WITH LESS DENSITY THAN WATER OR NEIGHBORHOOD THEREOF |
WO1998004352A1 (en) * | 1996-07-26 | 1998-02-05 | Georges Riberry | Apparatus for continuously separating heavier-than-water bulk materials and bulk materials having a density lower than or adjacent to that of water |
JP2007167857A (en) * | 2005-12-19 | 2007-07-05 | Yamaichi Kinzoku Kk | Method for treating molten metal |
JP2013053363A (en) * | 2011-09-06 | 2013-03-21 | Kobe Steel Ltd | Method for removing slag from ladle |
CN102441665A (en) * | 2011-12-31 | 2012-05-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Slag absorption device and slag removal method using same |
CN102921939A (en) * | 2012-11-12 | 2013-02-13 | 鞍钢集团工程技术有限公司 | Method of gathering and skimming slag in melted iron |
CN106337103A (en) * | 2015-07-07 | 2017-01-18 | 宝钢工程技术集团有限公司 | Rotary blowing slag-driving device assembly and use method thereof |
CN106975734A (en) * | 2017-01-12 | 2017-07-25 | 辽宁科技学院 | A kind of continuous cast mold inwall deslagging device and method |
CN110508798A (en) * | 2019-09-25 | 2019-11-29 | 杨佳志 | A kind of molten aluminum slag skimming method |
CN110508798B (en) * | 2019-09-25 | 2020-07-07 | 贵州莹月帆铝制品有限公司 | Molten aluminum slagging-off method |
CN110899656A (en) * | 2019-12-11 | 2020-03-24 | 罗绍丽 | Lead oxide scraping device for zinc alloy casting |
CN110899656B (en) * | 2019-12-11 | 2021-05-11 | 罗绍丽 | Lead oxide scraping device for zinc alloy casting |
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