JPS55125207A - Operation method of blast furnace - Google Patents

Operation method of blast furnace

Info

Publication number
JPS55125207A
JPS55125207A JP3392879A JP3392879A JPS55125207A JP S55125207 A JPS55125207 A JP S55125207A JP 3392879 A JP3392879 A JP 3392879A JP 3392879 A JP3392879 A JP 3392879A JP S55125207 A JPS55125207 A JP S55125207A
Authority
JP
Japan
Prior art keywords
descending
calculated
conditions
actual
balance
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
JP3392879A
Other languages
Japanese (ja)
Other versions
JPS5946283B2 (en
Inventor
Yoshiyuki Matoba
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3392879A priority Critical patent/JPS5946283B2/en
Publication of JPS55125207A publication Critical patent/JPS55125207A/en
Publication of JPS5946283B2 publication Critical patent/JPS5946283B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/006—Automatically controlling the process

Abstract

PURPOSE:To maintain smooth descending of burden and perform stable operations by doing such things as catching the calculated and actual descending rates respectively in correspondence to the momentarily changing blast furnace inside conditions and the fluctuations of the descending conditions owing to volume change and exerting external force to cope with the differences of both. CONSTITUTION:Coke consumption rate is calculated from C balance by using the data of blast conditions, furnace top gas components, descending material components and tapping components being measured momentarily. Next, based on this coke consumption rate and the pig iron production rate value calculated from O2 balance, the descending speed Vc occuring in the solid volume reduction produced in the furnace is calculated. Thence, according to the descending condition of the stock line, the actual descending rate VR is obtained from a recording rod or actual charge amount. The mean descending rates VC<-m> and Vr<-m> (m charge corresponding mean) in the m charge number of the speeds VC, VR are compared and the descending conditions are decided from the right formula (where zetaV is VC drift correction coefficient and deltaO is a constant). By the results of this, the adjustment of descending is performed.
JP3392879A 1979-03-22 1979-03-22 How to operate a blast furnace Expired JPS5946283B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3392879A JPS5946283B2 (en) 1979-03-22 1979-03-22 How to operate a blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3392879A JPS5946283B2 (en) 1979-03-22 1979-03-22 How to operate a blast furnace

Publications (2)

Publication Number Publication Date
JPS55125207A true JPS55125207A (en) 1980-09-26
JPS5946283B2 JPS5946283B2 (en) 1984-11-12

Family

ID=12400171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3392879A Expired JPS5946283B2 (en) 1979-03-22 1979-03-22 How to operate a blast furnace

Country Status (1)

Country Link
JP (1) JPS5946283B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0347907Y2 (en) * 1985-01-26 1991-10-14
JPS6287884U (en) * 1985-11-21 1987-06-04
JPS6321083U (en) * 1986-07-25 1988-02-12
JPS6327378U (en) * 1986-08-06 1988-02-23

Also Published As

Publication number Publication date
JPS5946283B2 (en) 1984-11-12

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