EP0172913A4 - Process and device for removing impurities contained in melted iron flowing from shaft furnace. - Google Patents

Process and device for removing impurities contained in melted iron flowing from shaft furnace.

Info

Publication number
EP0172913A4
EP0172913A4 EP19850900768 EP85900768A EP0172913A4 EP 0172913 A4 EP0172913 A4 EP 0172913A4 EP 19850900768 EP19850900768 EP 19850900768 EP 85900768 A EP85900768 A EP 85900768A EP 0172913 A4 EP0172913 A4 EP 0172913A4
Authority
EP
European Patent Office
Prior art keywords
removing impurities
impurities contained
shaft furnace
melted iron
iron flowing
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
Application number
EP19850900768
Other languages
German (de)
French (fr)
Other versions
EP0172913B1 (en
EP0172913A1 (en
Inventor
Kenzo Yamada
Katsuhiro Iwasaki
Mitsuru Ohtsuki
Haruo Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP59019182A external-priority patent/JPS60162716A/en
Priority claimed from JP59019178A external-priority patent/JPS60162711A/en
Priority claimed from JP59019177A external-priority patent/JPS60162710A/en
Priority claimed from JP59019179A external-priority patent/JPS60162713A/en
Priority claimed from JP59019181A external-priority patent/JPS60162715A/en
Priority claimed from JP59019180A external-priority patent/JPS60162714A/en
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of EP0172913A1 publication Critical patent/EP0172913A1/en
Publication of EP0172913A4 publication Critical patent/EP0172913A4/en
Application granted granted Critical
Publication of EP0172913B1 publication Critical patent/EP0172913B1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
EP19850900768 1984-02-04 1985-02-04 Process and device for removing impurities contained in melted iron flowing from shaft furnace Expired EP0172913B1 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP19179/84 1984-02-04
JP19180/84 1984-02-04
JP19182/84 1984-02-04
JP59019182A JPS60162716A (en) 1984-02-04 1984-02-04 Device for treating molten iron
JP19178/84 1984-02-04
JP59019178A JPS60162711A (en) 1984-02-04 1984-02-04 Device for treating molten iron
JP59019177A JPS60162710A (en) 1984-02-04 1984-02-04 Device for treating molten iron
JP59019179A JPS60162713A (en) 1984-02-04 1984-02-04 Device for treating molten iron
JP59019181A JPS60162715A (en) 1984-02-04 1984-02-04 Device for treating molten iron
JP19181/84 1984-02-04
JP19177/84 1984-02-04
JP59019180A JPS60162714A (en) 1984-02-04 1984-02-04 Device for treating molten iron

Publications (3)

Publication Number Publication Date
EP0172913A1 EP0172913A1 (en) 1986-03-05
EP0172913A4 true EP0172913A4 (en) 1986-06-05
EP0172913B1 EP0172913B1 (en) 1990-03-07

Family

ID=27548841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850900768 Expired EP0172913B1 (en) 1984-02-04 1985-02-04 Process and device for removing impurities contained in melted iron flowing from shaft furnace

Country Status (6)

Country Link
EP (1) EP0172913B1 (en)
BR (1) BR8504996A (en)
DE (2) DE3590051T (en)
GB (1) GB2162860B (en)
IN (1) IN165408B (en)
WO (1) WO1985003525A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1200082B (en) * 1985-06-21 1989-01-05 Centro Speriment Metallurg CAST IRON DESULFURATION AND DEFORSFORATION PROCEDURE
LU86689A1 (en) * 1985-12-03 1987-05-04 Centro Speriment Metallurg CONTINUOUS PURIFICATION PROCESS OF MOLTEN CAST IRON
IT1234939B (en) * 1985-12-06 1992-06-02 Centro Speriment Metallurg PROCEDURE FOR THE REDUCTION OF THE CONTENT OF IMPURITIES IN CAST IRON

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1326751A (en) * 1962-05-18 1963-05-10 Broken Hill Pty Co Ltd Continuous steel fabrication facility using oxygen
FR1576970A (en) * 1967-08-14 1969-08-01
DE1800131B1 (en) * 1968-10-01 1971-05-27 Conzinc Riotinto Ltd Multi-zone melting process and multi-zone melting furnace for the continuous production of steel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130208A (en) * 1982-01-29 1983-08-03 Nippon Kokan Kk <Nkk> Pretreatment of molten iron

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1326751A (en) * 1962-05-18 1963-05-10 Broken Hill Pty Co Ltd Continuous steel fabrication facility using oxygen
FR1576970A (en) * 1967-08-14 1969-08-01
DE1800131B1 (en) * 1968-10-01 1971-05-27 Conzinc Riotinto Ltd Multi-zone melting process and multi-zone melting furnace for the continuous production of steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8503525A1 *

Also Published As

Publication number Publication date
DE3590051T (en) 1986-03-13
IN165408B (en) 1989-10-07
DE3590051C2 (en) 1987-04-16
EP0172913B1 (en) 1990-03-07
GB2162860B (en) 1988-02-03
GB2162860A (en) 1986-02-12
GB8518758D0 (en) 1985-08-29
BR8504996A (en) 1986-01-21
EP0172913A1 (en) 1986-03-05
WO1985003525A1 (en) 1985-08-15

Similar Documents

Publication Publication Date Title
EP0245601A3 (en) Apparatus for treating molten metal
HU9203231D0 (en) Apparatus and method for refining metals using electroslag
DE3366964D1 (en) Process and apparatus for recovering heat from molten slag
PT78033B (en) A method for carrying out melting melt-metallurgical and/or reduction-metallurgical processes in a plasma melting furnace as well as an arrangement for carrying out the method
EP0161099A3 (en) Method and apparatus for melting metal ingots
BG35678A1 (en) Method and device for treating and refining liquid alloys
HUT38287A (en) Method for producing melt and furnace for carrying out the method
EP0178480A3 (en) Method and apparatus for controlled melt refining
GB2115011B (en) Improvements in or relating to a process for melting and/or refining steel
GB2121442B (en) Increasing blast temperature in melting or reduction furnaces
EP0172913A4 (en) Process and device for removing impurities contained in melted iron flowing from shaft furnace.
GB8417819D0 (en) Removing dross &amp;c waste material from molten metal
HUT52170A (en) Process for mixing alloying elements in metal melt
ZA856246B (en) Smelting process for recovering metals,and apparatus for carrying out that process
GB2205151B (en) Method and apparatus for refining molten metal
DE3263629D1 (en) Metallurgical process for treating silicon-aluminous-alkaline ores, in particular leucitic ores
JPS57181321A (en) Molten iron desulfurization and apparatus
GB2131530B (en) Gas removal in metallurgical furnaces
HUT58830A (en) Process for more intensive pirometallurgic refining primere copper materials and copper-wastes containing pb and sn in basic-lined furnace with utilizing impurity-oriented less-corrosive, morestaged iron-oxide-based slag
YU287881A (en) Process for leaching copper and aresenic from the copper slag
JPS5760037A (en) Method and apparatus for refining ore material in arc furnace
JPS57156379A (en) Blast furnace launder material
ZA857696B (en) Method and apparatus for holding or increasing the temperature in a metal melt
ZA855331B (en) Apparatus for removing impurities contained in molten pig iron tapped from blast furnace
PL241728A1 (en) Method of remelting of copper-bearing metallurgical wastes in shaft furnace

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19850925

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): FR

A4 Supplementary search report drawn up and despatched

Effective date: 19860605

17Q First examination report despatched

Effective date: 19880216

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910109

Year of fee payment: 7

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921030

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST