JPS624815A - Vacuum arc heating type ladle refining device - Google Patents
Vacuum arc heating type ladle refining deviceInfo
- Publication number
- JPS624815A JPS624815A JP14203585A JP14203585A JPS624815A JP S624815 A JPS624815 A JP S624815A JP 14203585 A JP14203585 A JP 14203585A JP 14203585 A JP14203585 A JP 14203585A JP S624815 A JPS624815 A JP S624815A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- ladle
- water
- vacuum
- vacuum chamber
- 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.)
- Granted
Links
Classifications
-
- 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
- C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は溶融金属の取鍋精錬装置に係シ、特に真空下で
のアーク加熱に好適な構成及び真空シール機構を備えた
真空アーク加熱式取鍋精錬装置に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a ladle refining apparatus for molten metal, and in particular to a vacuum arc heating type apparatus having a configuration suitable for arc heating under vacuum and a vacuum sealing mechanism. Regarding pot refining equipment.
この種の従来の装置は、特開昭５２−２８４０６号に示
されるように蛇腹装入テレスコープによる電極シール装
置を採用するものであった。しかし電極昇降による中心
ずれを蛇腹で吸収する構造になってているため、テレス
コープが斜になった場合摺動抵抗が増加するばかりでな
く、蛇腹の変形を来すおそれがあった。また大気圧下で
電極を上昇させた場合その位置でテレスコープの外筒が
テレスコープに付いたまま移動してしまう等の不都合な
事態を生ずることもあった。A conventional device of this type employs an electrode sealing device using a bellows-loaded telescope, as shown in Japanese Patent Laid-Open No. 52-28406. However, since the telescope is structured so that the center shift due to electrode elevation is absorbed by the bellows, if the telescope becomes oblique, not only will the sliding resistance increase, but there is also a risk that the bellows may become deformed. Further, when the electrode is raised under atmospheric pressure, an inconvenient situation may occur in which the outer cylinder of the telescope moves while attached to the telescope at that position.
溶融金属の真空アーク加熱式取鍋精錬装置では、装置全
体を摺動部分も含めて真空気密構造にする必要があるが
、そのための構造としてはシール部分のアークによる飛
散物の影響や熱影響を少くすることと同シール部の電極
昇降における摺動部の偏心をどのように吸収させるかが
重要な問題となる。In vacuum arc heating ladle refining equipment for molten metal, the entire equipment, including sliding parts, must be constructed in a vacuum-tight manner. The important issues are how to reduce the eccentricity of the sliding part of the seal part when the electrode goes up and down.
一方アーク加熱用に使用される黒鉛電極は、抗折力が小
さく、かつ、摩耗しゃすいばかシでなく温度も高くなる
ことから、黒鉛電極を直接シールすることは困難である
。On the other hand, graphite electrodes used for arc heating have a small transverse rupture strength, are not easily worn out, and have high temperatures, so it is difficult to directly seal the graphite electrodes.
さらに通常の取鍋精錬装置においては、精錬時の溶融金
属の沸騰を考慮して、１０００−前後のフリーボードが
取鍋内の溶融金属から取鍋上端部間にとられている。ま
た、取鍋上に取鍋蓋をセットする場合は、電極下端は取
鍋上端より上に位置しなければならないため、電極外周
に水冷金属筒を設ける場合該水冷金属筒はフリービード
に見合った大きなストロークが必要である。この水冷金
属筒をアーク加熱による飛散物や熱影響さらには真空排
気による含塵ガスの影響から保護することが重要な課題
となる。Further, in a typical ladle refining apparatus, in consideration of boiling of the molten metal during refining, a free board of about 1000 mm is provided between the molten metal in the ladle and the upper end of the ladle. Also, when setting a ladle lid on the ladle, the lower end of the electrode must be located above the upper end of the ladle, so if a water-cooled metal cylinder is provided around the electrode, the water-cooled metal cylinder must be suitable for the free bead. Large strokes are required. It is important to protect this water-cooled metal cylinder from flying debris and thermal effects caused by arc heating, as well as from the effects of dust-containing gas caused by vacuum exhaust.
〔発明の目的〕
本発明は、上記した実状に鑑みてなされたものであシ、
その目的は溶融金属の真空アーク加熱式取鍋精錬装置に
おいて、真空下でのアーク加熱を円滑に行なうためのシ
ール部へのアーク加熱による飛散物付着の軽減、アーク
加熱雰囲気からのシール部を隔離する構造および電極昇
降時の偏心、通電時の振動による偏心を真空気密を保ち
ながら吸収する機構を備えた真空アーク加熱式取鍋精錬
装置を提供することにある。[Object of the invention] The present invention has been made in view of the above-mentioned actual situation.
The purpose of this is to reduce the adhesion of flying debris due to arc heating to the sealing part in vacuum arc heating ladle refining equipment for molten metal to ensure smooth arc heating under vacuum, and to isolate the sealing part from the arc heating atmosphere. It is an object of the present invention to provide a vacuum arc heating type ladle refining device having a structure that absorbs eccentricity during lifting and lowering of electrodes and eccentricity due to vibration during energization while maintaining vacuum tightness.
上記目的を達成する本発明による真空アーク加熱式取鍋
精錬装置は、溶融金属を収納するための取鍋と、該取鍋
上に密閉状にセットされる取鍋蓋と、該取鍋蓋上に設け
られかつ溶湯の７リーテードに見合った高さを有する真
空室と、該真空室および前記取鍋蓋にそれぞれ設けられ
た電極孔を通して前記取鍋中に電極を装入するためのア
ーク加熱用電極装置とからなり、該電極装置は、真空気
密式電極把持器、該把持器上部の電極蓋および該把持器
下部の水冷金属筒を含み、該水冷金属筒は、前記電極装
置の装入時において、前記真空室内に留まる長さとし、
前記真空室の電極孔位置には、前記水冷金属筒に密封状
に摺動嵌合する筒部と前記電極孔を密封する可動フラン
ジ部とを有するシールリング装置を設けたことを特徴と
するものである。A vacuum arc heating ladle refining apparatus according to the present invention that achieves the above object includes a ladle for storing molten metal, a ladle lid that is set hermetically on the ladle, and a ladle lid that is placed on the ladle lid. a vacuum chamber provided in the molten metal and having a height commensurate with the 7 lead of the molten metal, and an arc heating device for charging an electrode into the ladle through electrode holes provided in the vacuum chamber and the ladle lid, respectively; The electrode device includes a vacuum-tight electrode gripper, an electrode lid at the upper part of the gripper, and a water-cooled metal tube at the bottom of the gripper, and the water-cooled metal tube is heated when the electrode device is loaded. , the length remains within the vacuum chamber,
A seal ring device is provided at the electrode hole position of the vacuum chamber, the seal ring device having a cylindrical portion that slides and seals into the water-cooled metal cylinder and a movable flange portion that seals the electrode hole. It is.
以下、本発明装置の一実施例を第１図を参照して詳細に
説明する。Hereinafter, one embodiment of the apparatus of the present invention will be described in detail with reference to FIG.
本実施例は、四つの主要部分から構成されている。すな
わち、溶融金属１′６を収納する取鍋１と、との取鍋１
上に密閉状にセットされ取鍋１の内部を真空状態に保持
するため・の取鍋蓋２と、取鍋蓋２上に設けられた真空
室３と、アーク加熱用電極装置４とが装置の主要部分を
構成するものである。This embodiment consists of four main parts. That is, a ladle 1 for storing molten metal 1'6, and a ladle 1 for storing molten metal 1'6.
The apparatus includes a ladle lid 2 which is set in a sealed manner on top of the ladle 1 to maintain the inside of the ladle 1 in a vacuum state, a vacuum chamber 3 provided on the ladle lid 2, and an electrode device 4 for arc heating. It constitutes the main part of.
取鍋蓋２には、真空排気用ダクト５と取鍋１のフランジ
部に当接するシールリング６と電極孔７１Ｌとが設けら
れ、前記真空室３は電極孔７＆を該真空室内に開口させ
て前記取鍋蓋２の上面に取付は配設されている。The ladle lid 2 is provided with a vacuum exhaust duct 5, a seal ring 6 that contacts the flange portion of the ladle 1, and an electrode hole 71L, and the vacuum chamber 3 has an electrode hole 7& opened into the vacuum chamber. An attachment is provided on the upper surface of the ladle lid 2.
電極装置４ば、電極８を把持するための真空気密式電極
把持器９と、該把持器９の上部に取付けられた電極蓋１
０と、該把持器９の下部に取付けられた水冷金属筒１１
とを含んでおシ、この水冷金属筒１１の長さは、電極装
置４を昇降させて、電極８を取鍋１から抜き出しもしく
は装入する際、常に真空室３内に留まる長さだ構成され
ている。The electrode device 4 includes a vacuum-tight electrode gripper 9 for gripping the electrode 8, and an electrode lid 1 attached to the top of the gripper 9.
0 and a water-cooled metal tube 11 attached to the lower part of the gripper 9.
The length of this water-cooled metal cylinder 11 is such that it always remains within the vacuum chamber 3 when the electrode device 4 is moved up and down and the electrode 8 is taken out or inserted into the ladle 1. ing.
また真空室３の上面における前記電極孔７ａに対向する
位置には電極孔７ｂが設けられ、水冷金属筒１１はこの
電極孔７ｂを通して真空室３に対して出入シする。真空
室３の電極孔７ｂの位置には水冷金属筒１１に密封用の
・臂ツキン１２を介して摺動嵌合する筒部と電極孔７ｂ
を・々ツキン１３を介して密封する可動フランジ部とを
有するシールリング装置１４が設けられている。なお１
５はバッキング１３を支持する座板である。Further, an electrode hole 7b is provided on the upper surface of the vacuum chamber 3 at a position opposite to the electrode hole 7a, and the water-cooled metal cylinder 11 enters and leaves the vacuum chamber 3 through this electrode hole 7b. At the position of the electrode hole 7b of the vacuum chamber 3, there is a cylindrical portion that is slidably fitted into the water-cooled metal cylinder 11 via a sealing armrest 12, and an electrode hole 7b.
A seal ring device 14 is provided, which has a movable flange portion for sealing through a seal 13. Note 1
5 is a seat plate that supports the backing 13.
加熱用に使用される電極は折れやすくかつ摩耗しやすい
ばかシでなく温度も高くなることから、電極を直接シー
ルすることは困難であるので本実施例では、電極把持器
９と電極蓋１ｏと水冷金属筒１１によって電極８の上部
を容器で包む構造とし、水冷金属筒１１の外周をシール
リング装置１４でシールする・ものである。電極昇降中
の水平方向のずれは、シールリング装置１４とパツキン
１３によシ、真空気密を保ちながら摺動し吸収できる構
造となっている。Since the electrodes used for heating are fragile and prone to wear, and the temperature increases, it is difficult to directly seal the electrodes. The upper part of the electrode 8 is wrapped in a container by a water-cooled metal tube 11, and the outer periphery of the water-cooled metal tube 11 is sealed with a seal ring device 14. The structure is such that horizontal displacement during the electrode lifting and lowering can be absorbed by the seal ring device 14 and packing 13 by sliding while maintaining vacuum tightness.
一方、水冷金属筒１１はシールリング装置１４のパツキ
ン１２を介して摺動するため、・ぐツキン１２の寿命や
シールの信頼性からも、水冷金属筒１１の外周は溶融金
属やスラグの飛散から、また熱的影響から保護されてい
なければならないが、本実施例では真空処理中の溶融金
属のぎイリング代、すなわち、フリーボードに見合った
高さの真空室３が設けられているので水冷金属筒１１お
よびパツキン１２は充分に保護される。On the other hand, since the water-cooled metal tube 11 slides through the gasket 12 of the seal ring device 14, the outer periphery of the water-cooled metal tube 11 is protected from scattering of molten metal and slag, considering the life of the gasket 12 and the reliability of the seal. , and must be protected from thermal influences; however, in this embodiment, the vacuum chamber 3 is provided with a height commensurate with the free board, so that the water-cooled metal The tube 11 and packing 12 are well protected.
本実施例によれば、電極や電極昇降装置に無理なく真空
気密を保ちながら電極昇降が可能であり、真空筒、シー
ルパツキンへの影響も少なく、簡単な構成で信頼性の高
い装置とする効果がきわめて犬である。According to this embodiment, it is possible to raise and lower the electrodes while keeping the electrodes and the electrode lifting device reasonably vacuum-tight, and there is little effect on the vacuum cylinder and seal packing, and the effect is that the device has a simple configuration and high reliability. is extremely dog-like.
本発明によれば、取鍋蓋の上部にフＩＪ ｚ−ドに見
合った高さを有する真空室が設けられているので、水冷
金属筒は真空室内のみを上下することで、取鍋セット、
アーク加熱に対応した電極位置を与えることができ、ア
ーク加熱による飛散物や熱影響および真空排気による含
塵ガスの影響は大巾に軽減される。また可動フランジ部
を有するシールリング装置ＫｊＪ）電極昇降時の電極装
置の偏心、および通電時の振動は真空気密を保ちながら
すべて吸収され、さらにシールリング装置は真空室の上
部に設けられているので、摺動部への固形物の飛散も極
めて少なく々Ｄ 、 ／＃ ７キン等の損傷も大巾に低
減される。According to the present invention, a vacuum chamber having a height commensurate with the lid is provided at the top of the ladle lid, so that the water-cooled metal cylinder can move up and down only within the vacuum chamber, and the ladle set,
Electrode positions corresponding to arc heating can be provided, and the effects of flying debris and heat due to arc heating and dust-containing gas due to vacuum exhaust are greatly reduced. In addition, the seal ring device with a movable flange part (KjJ) eccentricity of the electrode device when the electrode is raised and lowered, and vibrations during energization are all absorbed while maintaining vacuum tightness, and the seal ring device is installed at the top of the vacuum chamber. There is also very little scattering of solid matter to the sliding parts, and damage to the D/#7 kin etc. is also greatly reduced.
本発明は簡単な構成であって溶融金属の真空精錬という
苛酷な条件にもかかわらず、安価で信頼性の高い装置を
提供するものであって高品質金属の精錬に寄与するとこ
ろがきわめて大きい。The present invention has a simple structure, provides an inexpensive and highly reliable apparatus despite the severe conditions of vacuum refining of molten metal, and greatly contributes to the refining of high quality metals.
第１図は、本発明による真空アーク加熱式取鍋精錬装置
の一実施例を示す縦断面図である。
１・・・取鍋、 ２・・・取鍋蓋、３・・°
真空室、 ４・・・アーク加熱用電極装
置、５・・・真空排気用ダクト、６・・・シールリング
、７ａ、７ｂ・・・電極孔、 ８・・・電極、９・・・
真空気密式電極把持器、
１０・・・電極蓋、 １１・・・水冷金属筒、
１２．１３・・・パツキン、１４・・・シールリング装
置、１５・・・座板、 １６・・・溶融金属
。
第１図FIG. 1 is a longitudinal sectional view showing an embodiment of a vacuum arc heating ladle refining apparatus according to the present invention. 1...Ladle, 2...Ladle lid, 3...°
Vacuum chamber, 4... Electrode device for arc heating, 5... Duct for evacuation, 6... Seal ring, 7a, 7b... Electrode hole, 8... Electrode, 9...
Vacuum-tight electrode gripper, 10... Electrode lid, 11... Water-cooled metal tube,
12.13... Packing, 14... Seal ring device, 15... Seat plate, 16... Molten metal. Figure 1
Claims (1)
セットされる取鍋蓋と、該取鍋蓋上に設けられかつ溶湯
のフリーボードに見合った高さを有する真空室と、該真
空室および前記取鍋蓋にそれぞれ設けられた電極孔を通
して前記取鍋中に電極を装入するためのアーク加熱用電
極装置とからなり、該電極装置は、真空気密式電極把持
器、該把持器上部の電極蓋および該把持器下部の水冷金
属筒を含み、該水冷金属筒は、前記電極装置の装入時に
おいて、前記真空室内に留まる長さとし、前記真空室の
電極孔位置には、前記水冷金属筒に密封状に摺動嵌合す
る筒部と前記電極孔を密封する可動フランジ部とを有す
るシールリング装置を設けたことを特徴とする真空アー
ク加熱式取鍋精錬装置。A ladle for storing molten metal, a ladle lid that is hermetically set on the ladle, and a vacuum chamber that is provided on the ladle lid and has a height commensurate with the freeboard of the molten metal. , an arc heating electrode device for inserting an electrode into the ladle through electrode holes provided in the vacuum chamber and the ladle lid, the electrode device comprising: a vacuum-tight electrode gripper; The water-cooled metal tube includes an electrode lid at the upper part of the gripper and a water-cooled metal cylinder at the lower part of the gripper, and the water-cooled metal cylinder has a length that remains within the vacuum chamber when the electrode device is inserted, and is located at the electrode hole position of the vacuum chamber. The vacuum arc heating ladle refining device is characterized in that it is provided with a seal ring device having a cylindrical portion that slides and seals into the water-cooled metal cylinder and a movable flange portion that seals the electrode hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142035A JPH0619099B2 (en) | 1985-06-28 | 1985-06-28 | Vacuum arc heating type ladle refining equipment |
| IN449/CAL/86A IN165735B (en) | 1985-06-19 | 1986-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142035A JPH0619099B2 (en) | 1985-06-28 | 1985-06-28 | Vacuum arc heating type ladle refining equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS624815A true JPS624815A (en) | 1987-01-10 |
| JPH0619099B2 JPH0619099B2 (en) | 1994-03-16 |
Family
ID=15305853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60142035A Expired - Lifetime JPH0619099B2 (en) | 1985-06-19 | 1985-06-28 | Vacuum arc heating type ladle refining equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619099B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02200722A (en) * | 1989-01-30 | 1990-08-09 | Aruko Tokushu Yousetsubou Kk | Ladle refining furnace |
| WO2011096170A1 (en) * | 2010-02-08 | 2011-08-11 | 株式会社大紀アルミニウム工業所 | Method for purifying aluminum and apparatus therefor |
| KR101320363B1 (en) * | 2012-04-26 | 2013-10-23 | 현대제철 주식회사 | Cover device for electrode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169408A (en) * | 1974-12-12 | 1976-06-16 | Nisshin Steel Co Ltd | GENATSUJIZAIKIMITSUSHIKIAAKUSEIRENRO |
| JPS59190315A (en) * | 1983-04-12 | 1984-10-29 | Sumitomo Metal Ind Ltd | Vacuum refining furnace |
-
1985
- 1985-06-28 JP JP60142035A patent/JPH0619099B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169408A (en) * | 1974-12-12 | 1976-06-16 | Nisshin Steel Co Ltd | GENATSUJIZAIKIMITSUSHIKIAAKUSEIRENRO |
| JPS59190315A (en) * | 1983-04-12 | 1984-10-29 | Sumitomo Metal Ind Ltd | Vacuum refining furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02200722A (en) * | 1989-01-30 | 1990-08-09 | Aruko Tokushu Yousetsubou Kk | Ladle refining furnace |
| WO2011096170A1 (en) * | 2010-02-08 | 2011-08-11 | 株式会社大紀アルミニウム工業所 | Method for purifying aluminum and apparatus therefor |
| JPWO2011096170A1 (en) * | 2010-02-08 | 2013-06-10 | 株式会社大紀アルミニウム工業所 | Aluminum purification method and apparatus |
| KR101320363B1 (en) * | 2012-04-26 | 2013-10-23 | 현대제철 주식회사 | Cover device for electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619099B2 (en) | 1994-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU1722218A3 (en) | Casting method by vacuum suction into gas-tight mould, and device therefor | |
| US4183351A (en) | Solar heat collecting apparatus | |
| JP2657067B2 (en) | Electrode seal assembly | |
| JPS624815A (en) | Vacuum arc heating type ladle refining device | |
| US4582674A (en) | Device for evacuating and filling final storage containers for radioactive materials | |
| JPH0814765A (en) | Lid-sealing device for molten metal container | |
| JPS6240558Y2 (en) | ||
| JPS6056577B2 (en) | Gas supply connector for vacuum ladle degassing equipment | |
| CA1144222A (en) | Sealed arc tube with refractory metal end caps | |
| JPH0216847Y2 (en) | ||
| KR900000086B1 (en) | Apparatus for sealing the skirt of a converter waste gas recovery system | |
| JPH0922776A (en) | Electrode sealing device for use in electric furnace | |
| JPH029358Y2 (en) | ||
| JP2573258Y2 (en) | Ceramics talk mounting structure of low pressure casting machine | |
| JPS6250405A (en) | Skirt sealing device for hermetic type converter waste gas treatment device | |
| JPS6241189Y2 (en) | ||
| US4663763A (en) | Charge-load support for a glow discharge furnace | |
| JPS6057487B2 (en) | Furnace sealing device | |
| JPH0875369A (en) | Vacuum melting furnace and operating method therefor | |
| JPH09133471A (en) | Furnace cover sealing device of arc furnace | |
| SU756166A1 (en) | Electric contact assembly for arc furnace | |
| SU737692A1 (en) | Quickly detachable superhigh-vacuum flange joint | |
| SU734474A1 (en) | Quick-release flanged tube connection | |
| US4593886A (en) | Method for charging liquid slag to a closed smelting furnace | |
| JPS59138293A (en) | Horizontal coke oven door |