JPH05261520A - Device for removing dross floated up on molten metal surface by using gas - Google Patents
Device for removing dross floated up on molten metal surface by using gasInfo
- Publication number
- JPH05261520A JPH05261520A JP4092195A JP9219592A JPH05261520A JP H05261520 A JPH05261520 A JP H05261520A JP 4092195 A JP4092195 A JP 4092195A JP 9219592 A JP9219592 A JP 9219592A JP H05261520 A JPH05261520 A JP H05261520A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- filtration chamber
- dross
- filtration
- 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.)
- Withdrawn
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、気体利用の溶湯表面浮
上ドロス除去装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molten metal surface floating dross removing device using gas.
【０００２】[0002]
【従来技術】従来、公知の実公昭６１−１３５５０号公
報には、図４のように、入湯口ａと出湯口ｂを有する濾
過室ｃと、該濾過室ｃに収納した入口側鏡板ｄと出口側
鏡板ｅと両鏡板間に掛渡した複数本のセラミック濾過チ
ューブｆとからなる濾過ユニットｇと、該濾過ユニット
ｇを前記濾過室ｃの出口側の側壁ｈに押し付ける入口側
鏡板と濾過室側壁との間に挿入される楔ｉとからなるも
のにおいて、前記入湯口ａから前記濾過室ｃに至る入湯
路ｊの底面の高さは、前記楔ｉの上端および前記入口側
鏡板ｄの上端より遥かに高く形成し、前記楔ｉの上端と
前記入口側鏡板ｄの上端とは楔ｉの方を高くした構成に
ついて記載されている。2. Description of the Related Art Conventionally known Japanese Utility Model Publication No. 61-13550 discloses a filtration chamber c having a hot-water inlet a and a hot-water outlet b as shown in FIG. 4, and an inlet side end plate d housed in the filtration chamber c. A filtration unit g comprising an outlet end plate e and a plurality of ceramic filtration tubes f suspended between both end plates, and an inlet end plate and a filtration chamber for pressing the filtration unit g against the outlet side wall h of the filtration chamber c. The height of the bottom surface of the hot water passage j from the hot water inlet a to the filtration chamber c is the upper end of the wedge i and the upper end of the entrance side end plate d. It is described that the wedge i is formed to be much higher, and the upper end of the wedge i and the upper end of the entrance side end plate d are higher than the wedge i.
【０００３】[0003]
【発明が解決しようとする課題】前記公知公報記載のも
のは、入湯口ａから濾過室ｃに至る入湯路ｊの底面の高
さが濾過室ｃの溶湯表面ｋより遥かに高く形成されて落
差があるから、ドクドクという感じで溶湯が濾過室ｃ内
に供給され、その際、空気を巻き込み、酸化物（ドロス
２２）が発生する。この、浮上酸化物はレーキのような
もので一箇所に集めても、湯面の高い入湯路ｊまでは掻
き出せないので、濾過室ｃより取出す手段がない。しか
し、入湯口から濾過室に至る入湯路は濾過室と同一溶湯
が溜って同一湯面となるようにし、入湯口の近傍部分を
無蓋露出構造にすると、浮上酸化物を集めて取出すこと
ができる。According to the above-mentioned publication, the height of the bottom surface of the hot water passage j from the hot water inlet a to the filtration chamber c is formed to be much higher than the molten metal surface k of the filtration chamber c. Therefore, the molten metal is supplied to the inside of the filtration chamber c with a feeling that it is dull, and at that time, air is entrained and oxides (dross 22) are generated. Even if the floating oxide is collected in one place like a rake, it cannot be scraped out to the hot water passage j having a high level, so there is no means for removing it from the filtration chamber c. However, if the molten metal that is the same as that in the filtration chamber accumulates in the hot water passage from the hot water inlet to the filtration chamber and the surface is the same, and if the area near the hot water inlet has a lidless exposed structure, floating oxide can be collected and taken out. ..
【０００４】[0004]
【課題を解決するための手段】よって、本発明は、入湯
口３と出湯口４を有し内部に濾過ユニット５を収納した
濾過室２の蓋体１２に気体噴出管１４を取付け、該噴出
管１４の下端には、前記濾過室２内の溶湯１５の上面を
一側方向に気体を吹いて溶湯１５上面に浮上しているド
ロス２２を集合させるドロス除去用ノズル１６を取付け
てなる気体利用の溶湯表面浮上ドロス除去装置、およ
び、入湯口３と出湯口４を有する濾過室２と、該濾過室
２に収納した入口側鏡板６と出口側鏡板７と両鏡板間に
掛渡した複数本のセラミック濾過チューブ８とからなる
濾過ユニット５と、該濾過ユニット５を前記濾過室２の
出口側の側壁９に押し付ける前記入口側鏡板６と濾過室
側壁との間に挿入される楔１０とからなるものにおい
て、前記入湯口３から前記濾過室２に至る入湯路２０は
溶湯１５が溜って前記濾過室２と略同一湯面となるよう
にし、前記入湯路２０の一部に無蓋部２１を形成し、前
記濾過室２の溶湯１５面上に前記無蓋部２１方向に気体
を吹いて溶湯１５上面に浮上しているドロス２２を前記
無蓋部２１に集合させるドロス除去用ノズル１６を取付
けてなる気体利用の溶湯表面浮上ドロス除去装置、およ
び、前記ドロス除去用ノズル１６は、上下動可能に設け
た気体利用の溶湯表面浮上ドロス除去装置としたもので
ある。Therefore, according to the present invention, the gas ejection pipe 14 is attached to the lid 12 of the filtration chamber 2 having the inlet 3 and the outlet 4, and the filtration unit 5 is housed therein. At the lower end of the pipe 14, there is attached a dross removing nozzle 16 which blows gas over the upper surface of the molten metal 15 in the filtration chamber 2 in one direction to collect dross 22 floating on the upper surface of the molten metal 15. Of molten metal surface floating dross, and filtration chamber 2 having inlet 3 and outlet 4, inlet side end plate 6 and outlet side end plate 7 housed in said filtration chamber 2, and a plurality of pieces suspended between both end plates A ceramic filter tube 8 and a wedge 10 inserted between the inlet side end plate 6 for pressing the filter unit 5 against the outlet side wall 9 of the filter chamber 2 and the filter chamber side wall. From the above-mentioned bath entrance 3 The molten metal 15 is accumulated in the hot water passage 20 leading to the filtration chamber 2 so that the molten metal 15 has substantially the same level as the filtration chamber 2, and a lidless portion 21 is formed in a part of the hot water passage 20 to melt the molten metal in the filtration chamber 2. A molten metal surface floating dross removing device using a gas, which is equipped with a dross removing nozzle 16 for collecting the dross 22 floating on the upper surface of the molten metal 15 on the 15th surface by blowing gas toward the uncovered portion 21. Further, the dross removing nozzle 16 is a molten metal surface floating dross removing device using gas, which is provided so as to be vertically movable.
【０００５】[0005]
【実施例】本発明の一実施例の構造を図面により説明す
ると、１は濾過装置、２は濾過装置１の濾過室で、実施
例の濾過室２は左右側に２室併設されている。濾過室２
を２室並設した理由は、逆流（白抜き矢印）させて目詰
まりを除去するためで、逆洗式濾過装置１となってい
る。３は入湯口、４は出湯口で、各濾過室２には濾過ユ
ニット５が夫々収納されている。６は濾過ユニット５の
入口側鏡板、７は出口側鏡板、８は入口側鏡板６と出口
側鏡板７との間に横設された複数本のセラミック濾過チ
ューブであり、入口側鏡板６と濾過装置１の側壁９との
間には楔１０を挿入して、濾過ユニット５を出湯口４の
側壁９に押付ける。１１は濾過室２の仕切板、１２は各
濾過室２の上部を覆う蓋体、１３は蓋体１２の下面に取
付けた加熱ヒータである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of one embodiment of the present invention will be described with reference to the drawings. 1 is a filtering device, 2 is a filtering chamber of a filtering device 1, and 2 filtering chambers 2 are provided on the left and right sides. Filtration room 2
The reason why the two chambers are arranged side by side is to remove the clogging by backflowing (white arrow), and the backwashing type filtration device 1 is provided. Reference numeral 3 is a hot water inlet, 4 is a hot spring outlet, and a filtration unit 5 is housed in each filtration chamber 2. 6 is an inlet side end plate of the filtration unit 5, 7 is an outlet side end plate, and 8 is a plurality of ceramic filtration tubes provided between the inlet side end plate 6 and the outlet side end plate 7. A wedge 10 is inserted between the side wall 9 of the device 1 and the side wall 9 of the tap 4 to press the filtration unit 5. Reference numeral 11 is a partition plate of the filtration chamber 2, 12 is a lid that covers the upper portion of each filtration chamber 2, and 13 is a heater attached to the lower surface of the lid 12.
【０００６】前記蓋体１２には、アルゴン・窒素ガス等
よりなる不活性ガスの噴出管１４を取付ける。噴出管１
４の下端には、濾過室２内の溶湯１５上面を入湯口３方
向に吹いて、浮上しているドロス２２を集めるドロス除
去用ノズル１６を取付ける。噴出管１４およびドロス除
去用ノズル１６は複数設けることもある。又、ドロス除
去用ノズル１６は上下前後左右の全部または一部だけ移
動可能に設けることもあり、１７はその時の上下動用シ
リンダである。なお、図３のように仕切板１８で仕切る
と、溶湯１５は逆流して、セラミック濾過チューブ８を
洗浄できる。１９は逆洗湯抜き口である。前記入湯口３
から各濾過室２に至る間の入湯路２０は、濾過室２に続
いて溶湯１５が溜る構造で、入湯路２０のうち入湯口３
に近い部分は無蓋部２１で蓋が無く、上方から柄杓で汲
み出せる構造である。A jet pipe 14 of an inert gas such as argon and nitrogen gas is attached to the lid 12. Spout pipe 1
At the lower end of 4, a dross removing nozzle 16 is attached which blows the upper surface of the molten metal 15 in the filtration chamber 2 toward the inlet 3 and collects the floating dross 22. A plurality of ejection pipes 14 and dross removing nozzles 16 may be provided. Further, the dross removing nozzle 16 may be provided so as to be movable up and down, front and back, left and right, or only partially, and 17 is a vertical movement cylinder at that time. When the partition plate 18 is used for partitioning as shown in FIG. 3, the molten metal 15 flows backward and the ceramic filtration tube 8 can be washed. 19 is a backwash hot water outlet. The entrance 3
The hot water passage 20 between the filter chamber 2 and each of the filtration chambers 2 has a structure in which the molten metal 15 accumulates after the filtration chamber 2, and the hot water inlet 3 of the hot water passage 20 is
The portion close to is a lidless portion 21 without a lid and has a structure that can be pumped out from above with a ladle.
【０００７】[0007]
【作用】次に作用を述べる。仕切板１８は取付けず、逆
洗湯抜き口１９は閉じた状態としておき、入湯口３より
アルミニューム等の金属溶湯１５を流入させると、金属
溶湯１５は２室の濾過室２内に充満し、濾過ユニット５
のセラミック濾過チューブ８により濾過されて出湯口４
より精湯として取出される。このとき、濾過室２内の溶
湯１５の上面には、空気に触れることから酸化して酸化
物（ドロス２２）が発生し、浮遊物となって浮上する
が、これをそのまま放置しておくと、セラミック濾過チ
ューブ８が目詰まりして効率が悪化する。[Operation] Next, the operation will be described. The partition plate 18 is not attached, the backwash hot water outlet 19 is kept closed, and when the molten metal 15 such as aluminum is introduced from the inlet 3, the molten metal 15 fills the two filtration chambers 2, Filtration unit 5
It is filtered by the ceramic filter tube 8 of
It is taken out as more purified water. At this time, on the upper surface of the molten metal 15 in the filtration chamber 2, the oxide (dross 22) is generated by oxidation due to being in contact with air, and floats as a suspended matter, but if left as it is. The ceramic filtration tube 8 is clogged and the efficiency deteriorates.
【０００８】本発明は、噴出管１４のドロス除去用ノズ
ル１６よりアルゴン・窒素ガス等の不活性ガスを噴出し
て、レーキ代りにドロス２２を集めて除去するものであ
り、入湯口３から各濾過室２に至る間の入湯路２０は、
濾過室２に続いて溶湯１５が溜る構造で、入湯路２０の
うち入湯口３に近い部分は無蓋部２１が形成されて蓋が
無く、上方から柄杓で汲み出せる構造であるから、ドロ
ス除去用ノズル１６より噴出した不活性ガスにより無蓋
部２１に掻き集めて、柄杓で汲み出す。なお、不活性ガ
スを用いるのは、ガス噴出により、２次的にドロス２２
が生成されることを防止するためである。According to the present invention, an inert gas such as argon or nitrogen gas is jetted from the dross removing nozzle 16 of the jet pipe 14 to collect and remove the dross 22 instead of the rake. The hot water passage 20 leading to the filtration chamber 2 is
For the dross removal, the structure is such that the molten metal 15 accumulates after the filtration chamber 2, and the part of the hot water passage 20 close to the hot water inlet 3 has an uncovered part 21 and has no lid and can be pumped out from above with a ladle. The inert gas ejected from the nozzle 16 scrapes it off the lidless portion 21 and pumps it out with a ladle. The use of the inert gas is secondary to the dross 22 due to the gas injection.
This is to prevent the generation of.
【０００９】なお、以上のようにドロス２２を除去して
も、セラミック濾過チューブ８はやがては目詰まりす
る。そのときは、出湯口４と一方の入湯口３を仕切板１
８で仕切り逆洗湯抜き口１９は開き、溶湯１５を白抜き
矢印のように逆流させて、セラミック濾過チューブ８を
洗浄し、逆洗湯抜き口１９より湯抜きする。また、噴出
管１４のドロス除去用ノズル１６の位置は、シリンダ１
７等により任意調節する。Even if the dross 22 is removed as described above, the ceramic filter tube 8 will eventually be clogged. In that case, the outlet 4 and one of the inlets 3 are separated by the partition plate 1
The partition backwash hot drain port 19 is opened at 8, and the molten metal 15 is caused to flow backward as shown by the white arrow to wash the ceramic filtration tube 8 and drain it from the backwash hot drain port 19. The position of the dross removing nozzle 16 of the ejection pipe 14 is set to the cylinder 1
Adjust it arbitrarily with 7.
【００１０】[0010]
【発明の効果】前記公知公報記載のものは、入湯口ａか
ら濾過室ｃに至る入湯路ｊの底面の高さが濾過室ｃの溶
湯表面ｋより遥かに高く形成されて落差があるから、ド
クドクという感じで溶湯が濾過室ｃ内に供給され、その
際、空気を巻き込み、酸化物（ドロス２２）が発生す
る。この、浮上酸化物はレーキのようなもので一箇所に
集めても、湯面の高い入湯路ｊまでは掻き出せないの
で、濾過室ｃより取出す手段がない。しかるに、本発明
は、入湯口３と出湯口４を有し内部に濾過ユニット５を
収納した濾過室２の蓋体１２に気体噴出管１４を取付
け、該噴出管１４の下端には、前記濾過室２内の溶湯１
５の上面を一側方向に気体を吹いて溶湯１５上面に浮上
しているドロス２２を集合させるドロス除去用ノズル１
６を取付けてなる気体利用の溶湯表面浮上ドロス除去装
置としたから、ドロス２２を容易に集めることができ
る。また、入湯口３と出湯口４を有する濾過室２と、該
濾過室２に収納した入口側鏡板６と出口側鏡板７と両鏡
板間に掛渡した複数本のセラミック濾過チューブ８とか
らなる濾過ユニット５と、該濾過ユニット５を前記濾過
室２の出口側の側壁９に押し付ける前記入口側鏡板６と
濾過室側壁との間に挿入される楔１０とからなるものに
おいて、前記入湯口３から前記濾過室２に至る入湯路２
０は溶湯１５が溜って前記濾過室２と略同一湯面となる
ようにし、前記入湯路２０の一部に無蓋部２１を形成
し、前記濾過室２の溶湯１５面上に前記無蓋部２１方向
に気体を吹いて溶湯１５上面に浮上しているドロス２２
を前記無蓋部２１に集合させるドロス除去用ノズル１６
を取付けてなる気体利用の溶湯表面浮上ドロス除去装置
としたから、集めたドロス２２を容易に取出せる。ま
た、前記ドロス除去用ノズル１６は、上下動可能に設け
た気体利用の溶湯表面浮上ドロス除去装置としたもので
あるから、ノズル１６の高さ位置の調節が出来るばかり
でなく、蓋体１２を外すときは前記ドロス除去用ノズル
１６を蓋体近くに上昇させることにより、作業の邪魔に
ならない位置にすることができる。According to the above-mentioned publication, since the height of the bottom surface of the hot water passage j from the hot water inlet a to the filtration chamber c is much higher than the molten metal surface k of the filtration chamber c, there is a drop. The molten metal is supplied into the filtration chamber c with a dull feeling, and at that time, air is entrained and oxides (dross 22) are generated. Even if the floating oxide is collected in one place like a rake, it cannot be scraped out to the hot water passage j having a high level, so there is no means for removing it from the filtration chamber c. However, according to the present invention, the gas ejection pipe 14 is attached to the lid 12 of the filtration chamber 2 having the inlet 3 and the outlet 4, and the filtration unit 5 is housed therein. Molten metal 1 in chamber 2
Nozzle 1 for removing dross that collects dross 22 floating on the upper surface of molten metal 15 by blowing gas to the upper surface of 5 in one direction.
Since the molten metal surface floating dross removing device utilizing gas 6 is attached, the dross 22 can be easily collected. Further, it comprises a filtration chamber 2 having a hot water inlet 3 and a hot water outlet 4, an inlet side end plate 6 and an outlet side end plate 7 housed in the filtration chamber 2, and a plurality of ceramic filtration tubes 8 suspended between the end plates. In the unit including the filtration unit 5 and the wedge 10 inserted between the inlet side end plate 6 for pressing the filtration unit 5 against the outlet side wall 9 of the filtration chamber 2 and the filtration chamber side wall, the hot water inlet 3 2 for hot water from the above to the filtration chamber 2
In No. 0, the molten metal 15 is accumulated so that the molten metal 15 has substantially the same level as the filtration chamber 2, and a lidless portion 21 is formed in a part of the molten metal passage 20. The lidless portion 21 is formed on the molten metal 15 surface of the filtration chamber 2. The dross 22 blows gas in the direction and floats on the upper surface of the molten metal 15.
Nozzle 16 for collecting dross that collects the uncovered portion 21
Since the molten metal surface floating dross removing device using gas is attached, the collected dross 22 can be easily taken out. Further, since the dross removing nozzle 16 is a molten metal surface floating dross removing device using gas, which is provided so as to be movable up and down, not only the height position of the nozzle 16 can be adjusted, but also the lid 12 is removed. At the time of removal, the dross removing nozzle 16 can be raised to a position near the lid so as to be in a position not disturbing the work.
【図１】 全体の縦断側面図。FIG. 1 is an overall vertical sectional side view.
【図２】 ノズルの斜視図。FIG. 2 is a perspective view of a nozzle.
【図３】 全体の横断平面図。FIG. 3 is an overall cross-sectional plan view.
【図４】 公知例図。FIG. 4 is a known example diagram.
１…濾過装置、２…濾過室、３…入湯口、４…出湯口、
５…濾過ユニット、６…入口側鏡板、７…出口側鏡板、
８…セラミック濾過チューブ、９…側壁、１０…楔、１
１…仕切板、１２…蓋体、１３…加熱ヒータ、１４…ガ
ス噴出管、１５…溶湯、１６…ドロス除去用ノズル、１
７…シリンダ、１８…仕切板、１９…逆洗湯抜き口、２
０…入湯路、２１…無蓋部、２２…ドロス。1 ... Filtration device, 2 ... Filtration chamber, 3 ... Hot water inlet, 4 ... Hot water outlet,
5 ... Filtration unit, 6 ... Inlet side end plate, 7 ... Outlet side end plate,
8 ... Ceramic filtration tube, 9 ... Side wall, 10 ... Wedge, 1
DESCRIPTION OF SYMBOLS 1 ... Partition plate, 12 ... Lid body, 13 ... Heater, 14 ... Gas ejection pipe, 15 ... Molten metal, 16 ... Dross removing nozzle, 1
7 ... Cylinder, 18 ... Partition plate, 19 ... Backwash hot water outlet, 2
0 ... hot water passage, 21 ... uncovered part, 22 ... dross.
Claims (3)
ニット５を収納した濾過室２の蓋体１２に気体噴出管１
４を取付け、該噴出管１４の下端には、前記濾過室２内
の溶湯１５の上面を無蓋部２１方向に気体を吹いて溶湯
１５上面の浮上ドロス２２を前記無蓋部２１に集合させ
るドロス除去用ノズル１６を取付けてなる気体利用の溶
湯表面浮上ドロス除去装置。1. A gas ejection pipe 1 is attached to a lid 12 of a filtration chamber 2 having a hot water inlet 3 and a hot water outlet 4, and a filtration unit 5 accommodated therein.
4 is attached to the lower end of the jet pipe 14, and the upper surface of the molten metal 15 in the filtration chamber 2 is blown with gas toward the uncovered portion 21 to collect the floating dross 22 on the upper surface of the molten metal 15 in the uncovered portion 21. Molten metal surface floating dross removing device using a gas nozzle 16.
ズル１６は、上下動可能に設けた気体利用の溶湯表面浮
上ドロス除去装置。2. The molten metal surface floating dross removing device using gas, wherein the dross removing nozzle 16 is vertically movable.
と、該濾過室２に収納した入口側鏡板６と出口側鏡板７
と両鏡板間に掛渡した複数本のセラミック濾過チューブ
８とからなる濾過ユニット５と、該濾過ユニット５を前
記濾過室２の出口側の側壁９に押し付ける前記入口側鏡
板６と濾過室側壁との間に挿入される楔１０とからなる
ものにおいて、前記入湯口３から前記濾過室２に至る入
湯路２０は溶湯１５が溜って前記濾過室２と略同一湯面
となるようにし、前記入湯路２０の一部に無蓋部２１を
形成し、前記濾過室２の溶湯１５面上に前記無蓋部２１
方向に気体を吹いて溶湯１５上面に浮上しているドロス
２２を前記無蓋部２１に集合させるドロス除去用ノズル
１６を取付けてなる気体利用の溶湯表面浮上ドロス除去
装置。3. A filtration chamber 2 having a hot-water inlet 3 and a hot-water outlet 4.
And an inlet side end plate 6 and an outlet side end plate 7 housed in the filtration chamber 2.
And a plurality of ceramic filtration tubes 8 hung between both end plates, the inlet side end plate 6 for pressing the filtration unit 5 against the side wall 9 on the outlet side of the filtration chamber 2, and the side wall of the filtration chamber. And a wedge 10 that is inserted between the hot water inlets 3 and the filtration chamber 2 so that the molten metal 15 accumulates on the hot water passage 20 to have substantially the same level as the filtration chamber 2. The lidless portion 21 is formed in a part of the passage 20, and the lidless portion 21 is formed on the surface of the molten metal 15 of the filtration chamber 2.
A molten metal surface floating dross removing device using a gas, which is provided with a dross removing nozzle 16 for collecting dross 22 floating on the upper surface of the molten metal 15 in the above-mentioned uncovered portion 21 by blowing gas in a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4092195A JPH05261520A (en) | 1992-03-18 | 1992-03-18 | Device for removing dross floated up on molten metal surface by using gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4092195A JPH05261520A (en) | 1992-03-18 | 1992-03-18 | Device for removing dross floated up on molten metal surface by using gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05261520A true JPH05261520A (en) | 1993-10-12 |
Family
ID=14047667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4092195A Withdrawn JPH05261520A (en) | 1992-03-18 | 1992-03-18 | Device for removing dross floated up on molten metal surface by using gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05261520A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971469A (en) * | 2018-08-31 | 2018-12-11 | 广德亚太汽车智能制动***有限公司 | A kind of molten iron casting packet that pushing off the slag effect is good |
| JP2020139662A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Arc type electric furnace, slag-off method for the same and molten metal manufacturing method |
| JP2020139661A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Arc type electric furnace, slag-off method for the same and molten metal manufacturing method |
| JP2020139180A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Slag discharging method and molten metal producing method in an arc-type electric furnace |
-
1992
- 1992-03-18 JP JP4092195A patent/JPH05261520A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971469A (en) * | 2018-08-31 | 2018-12-11 | 广德亚太汽车智能制动***有限公司 | A kind of molten iron casting packet that pushing off the slag effect is good |
| JP2020139662A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Arc type electric furnace, slag-off method for the same and molten metal manufacturing method |
| JP2020139661A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Arc type electric furnace, slag-off method for the same and molten metal manufacturing method |
| JP2020139180A (en) * | 2019-02-27 | 2020-09-03 | 日本製鉄株式会社 | Slag discharging method and molten metal producing method in an arc-type electric furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990518 |