EP0004373A3 - Method and apparatus for operating an iron producing blast furnace - Google Patents

Method and apparatus for operating an iron producing blast furnace Download PDF

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Publication number
EP0004373A3
EP0004373A3 EP79100849A EP79100849A EP0004373A3 EP 0004373 A3 EP0004373 A3 EP 0004373A3 EP 79100849 A EP79100849 A EP 79100849A EP 79100849 A EP79100849 A EP 79100849A EP 0004373 A3 EP0004373 A3 EP 0004373A3
Authority
EP
European Patent Office
Prior art keywords
coke
zone
ring zone
sinking
blow mold
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Withdrawn
Application number
EP79100849A
Other languages
German (de)
French (fr)
Other versions
EP0004373A2 (en
Inventor
Paul Dr.-Ing. Schmalfeld
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0004373A2 publication Critical patent/EP0004373A2/en
Publication of EP0004373A3 publication Critical patent/EP0004373A3/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Hochöfen zur Reduktion von Eisenerzen haben ein verstärktes Absinken von Koks- und Erzschichten in einer Ringzone oberhalb der Blasformhöhlen, während das Absinken in der Mitten- und Randzone sehr gering ist. Dagegen strömen die Schachtgase bevorzugt durch die Mitten- und Randzone. Ihre spezifische Menge ist in diesen Zonen stark überhöht, in der Ringzone dagegen viel geringer. Somit verzögert sich die Reduktionsarbeit in der Ringzone und verläuft in starkem Maße erst nahe der Blasformenebene, welches einen gesteigerten Koks- und Luftverbrauch bedingt. Blast furnaces for the reduction of iron ores have a reinforced one Sinking of coke and ore layers in one Ring zone above the blow mold cavities while sinking is very low in the middle and edge zone. On the other hand the shaft gases flow preferentially through the middle and edge zone. Your specific amount is in these Zones greatly exaggerated, but much less in the ring zone. Thus, the reduction work in the Ring zone and runs to a large extent only near the blow mold level, which increases coke and air consumption conditionally.

Durch Chargierung der Mitten- und Randzone mit Koks bzw. Erz kleinerer Körnung gegenüber der Ringzone und mit einem Kokssatz von 100 bis 200 kg je t Roheisen wird ein weitgehender Ausgleich der Strömung der Schachtgase und der Reduktionsarbeit in den 3 Zonen erreicht. Eine Koksersparnis von 5-10% und eine entsprechende Windersparnis bzw. Leistungserhöhung sind die Folge. By charging the middle and edge zone with coke or ore of smaller grain size compared to the ring zone and with a coke rate of 100 to 200 kg per ton of pig iron extensive balancing of the flow of the shaft gases and the reduction work achieved in the 3 zones. A coke saving of 5-10% and a corresponding one Wind savings or increased performance are the result.

EP79100849A 1978-03-23 1979-03-21 Method and apparatus for operating an iron producing blast furnace Withdrawn EP0004373A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2812788 1978-03-23
DE19782812788 DE2812788A1 (en) 1978-03-23 1978-03-23 METHOD AND DEVICE FOR OPERATING A BOTTOM FURNACE FOR THE REDUCTION OF IRON ORES

Publications (2)

Publication Number Publication Date
EP0004373A2 EP0004373A2 (en) 1979-10-03
EP0004373A3 true EP0004373A3 (en) 1979-10-17

Family

ID=6035318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100849A Withdrawn EP0004373A3 (en) 1978-03-23 1979-03-21 Method and apparatus for operating an iron producing blast furnace

Country Status (2)

Country Link
EP (1) EP0004373A3 (en)
DE (1) DE2812788A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409137B (en) * 2000-09-22 2002-05-27 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR PRODUCING A FIXED BED

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE219509C (en) *
AU116726A (en) * 1926-03-26 1926-08-24 Standard Telephones A. nii Cables (australasia ) Limited Improvements in electric wave distorting systems
FR1027331A (en) * 1950-11-08 1953-05-11 T An Tesch Improvements to shaft furnaces, especially blast furnaces, with single or double loading dome
US2671017A (en) * 1949-09-24 1954-03-02 Reserve Mining Co Method of charging a blast furnace
DE952528C (en) * 1953-03-12 1956-11-15 T An Tesch Aktiebolag Loading arrangement for shaft furnaces, preferably blast furnaces
DE1081906B (en) * 1953-09-16 1960-05-19 Henry Hippolyte Meynadier Method and device for operating a blast furnace
US3257016A (en) * 1965-03-08 1966-06-21 Erie Mining Co Method for charging ore concentrate balls to a shaft-type furnace for indurating ore pellets

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE219509C (en) *
AU116726A (en) * 1926-03-26 1926-08-24 Standard Telephones A. nii Cables (australasia ) Limited Improvements in electric wave distorting systems
US2671017A (en) * 1949-09-24 1954-03-02 Reserve Mining Co Method of charging a blast furnace
FR1027331A (en) * 1950-11-08 1953-05-11 T An Tesch Improvements to shaft furnaces, especially blast furnaces, with single or double loading dome
DE952528C (en) * 1953-03-12 1956-11-15 T An Tesch Aktiebolag Loading arrangement for shaft furnaces, preferably blast furnaces
DE1081906B (en) * 1953-09-16 1960-05-19 Henry Hippolyte Meynadier Method and device for operating a blast furnace
US3257016A (en) * 1965-03-08 1966-06-21 Erie Mining Co Method for charging ore concentrate balls to a shaft-type furnace for indurating ore pellets

Also Published As

Publication number Publication date
DE2812788A1 (en) 1979-09-27
EP0004373A2 (en) 1979-10-03

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