KR940014832A - 2nd refining upper lance - Google Patents
2nd refining upper lance Download PDFInfo
- Publication number
- KR940014832A KR940014832A KR1019920026535A KR920026535A KR940014832A KR 940014832 A KR940014832 A KR 940014832A KR 1019920026535 A KR1019920026535 A KR 1019920026535A KR 920026535 A KR920026535 A KR 920026535A KR 940014832 A KR940014832 A KR 940014832A
- Authority
- KR
- South Korea
- Prior art keywords
- lance
- refining
- secondary refining
- present
- nozzle
- Prior art date
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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
본 발명은 래들에서의 2차정련시 용강을 교반하기 위한 2차정련용 상취랜스에 관한 것으로서, 용강의 교반을 위한 통상적인 상취랜스의 노즐을 개량하여 쥐입개스의 류양제어가 가능하고, 그리고 미세한 버블이 형성되도록 한 2차정련용 상취랜스를 제공하고자 하는데, 그 목적이 있다.The present invention relates to a secondary refining lance for agitating molten steel during secondary refining in a ladle, and is capable of controlling the flow rate of a rat mouth gas by improving a nozzle of a conventional upper lance for agitating molten steel. It is an object of the present invention to provide a secondary refreshing lance allowing bubbles to be formed.
본 발명은 취입개스 통로가 내부에 구비되어 있는 철골구조, 및 상기 철곡구조의 외부에 시공되어 있는 캐스타블로 이루어지고, 그리고, 철골구조의 개스 도입부와 대향되는 위치에 다수개의노즐이 형성되어 구성되는 2차정련용 상취랜스에 있어서, 그 내측의 내경보다 외측의 내경이 더 적도록 형성된 플러그 수용부(212a)가 상기 노즐에 형성되고, 그리고 그 내부에는 다공성 플러그(23)가 삽입되어 구성되는 2차정련용 상취랜스를 그 요지로 한다.The present invention consists of a steel frame structure having a blown gas passage therein, and a caster constructed on the outside of the curved structure, and a plurality of nozzles are formed at positions opposite to the gas inlet portion of the steel structure. In the secondary refining upper lance, a plug receiving portion 212a formed so that the inner diameter of the outer side is smaller than the inner diameter of the inner side is formed in the nozzle, and the inside is formed by inserting the porous plug 23 therein. The upper refinery lance for car refining is the main point.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제3도는 본 발명에 부합되는 상취랜스를 나타내는 단면도,3 is a cross-sectional view showing the upper lance according to the present invention,
제4도는 본 발명의 상취랜스를 사용하여 래들내의 용강을 교반하는 것을 나타내는 본 발명 상취랜스의 사용상태.4 is a state of use of the present invention upper lance showing the stirring of the molten steel in the ladle using the above-mentioned lance upper lance.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920026535A KR940008452B1 (en) | 1992-12-30 | 1992-12-30 | Lance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920026535A KR940008452B1 (en) | 1992-12-30 | 1992-12-30 | Lance |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940014832A true KR940014832A (en) | 1994-07-19 |
KR940008452B1 KR940008452B1 (en) | 1994-09-15 |
Family
ID=19347683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920026535A KR940008452B1 (en) | 1992-12-30 | 1992-12-30 | Lance |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940008452B1 (en) |
-
1992
- 1992-12-30 KR KR1019920026535A patent/KR940008452B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR940008452B1 (en) | 1994-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5083754A (en) | Apparatus for retaining slag during the discharge of molten metal from a tundish | |
DE3463397D1 (en) | Gas flushing plug for metallurgical vessels | |
HUP0401894A2 (en) | Submerged entry nozzle and utilisation thereof | |
CA2171149A1 (en) | Reduced dusting bath system for continuous metallurgical treatment of sulfide materials | |
KR940014832A (en) | 2nd refining upper lance | |
US4854553A (en) | Self shielding lance | |
KR860008290A (en) | Method to control nitrogen by refining molten metal bath | |
DE3743575A1 (en) | METHOD FOR TAKING A METAL MELT AND METALLURGICAL TUBE FOR CARRYING OUT THE METHOD | |
CA2073811A1 (en) | Plug for molten metal refining vessel | |
US4767036A (en) | Apparatus and method for emptying metallurgical vessels containing metal and slag | |
KR980002273A (en) | Preventing Skull Accumulation in Steelmaking Lances | |
US4840355A (en) | Slag controlling device for basic oxygen furnaces | |
ZA866054B (en) | Process for protecting against oxidation and/or nitridation of a liquid metal stream,device for carrying out the process,and use of the device | |
JPH0931527A (en) | Plug for blowing gas | |
JP2010132965A (en) | Method for refining extra-low nitrogen steel | |
RU93052143A (en) | METHOD OF BLOWING METAL BLEEDING | |
JPS58224050A (en) | Continuous casting method of beam blank | |
SU1245600A1 (en) | Tuyere for bottom blowing of metal melt | |
JPS6311161Y2 (en) | ||
JPH0232673Y2 (en) | ||
KR820001566B1 (en) | Blast furnace smelting of zinc | |
JPH0449169Y2 (en) | ||
JPS6324320Y2 (en) | ||
JPH065406Y2 (en) | Converter blowing lance | |
JPS595487Y2 (en) | Nozzle for droplet degassing equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
O035 | Opposition [patent]: request for opposition |
Free format text: OPPOSITION NUMBER: 001994001618; OPPOSITION DATE: 19941111 |
|
E601 | Decision to refuse application | ||
O063 | Decision on refusal after opposition [patent]: decision to refuse application |