JPS54131503A - Sinter operation control - Google Patents

Sinter operation control

Info

Publication number
JPS54131503A
JPS54131503A JP3914878A JP3914878A JPS54131503A JP S54131503 A JPS54131503 A JP S54131503A JP 3914878 A JP3914878 A JP 3914878A JP 3914878 A JP3914878 A JP 3914878A JP S54131503 A JPS54131503 A JP S54131503A
Authority
JP
Japan
Prior art keywords
acidity
generation
reduction strength
sintering
raw material
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.)
Pending
Application number
JP3914878A
Other languages
Japanese (ja)
Inventor
Kiyoshi Tashiro
Hideaki Soma
Yozo Hosoya
Masami Wajima
Tsukasa Takada
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP3914878A priority Critical patent/JPS54131503A/en
Publication of JPS54131503A publication Critical patent/JPS54131503A/en
Pending legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: In sintering raw material, fine granules less than 1 mm is controlled in acidity, whereby the reduction strength and sintered ore and NOx generation are controlled to a desired value heretofore unattainable.
CONSTITUTION: It has been found that the acidity (CaO/SiO) of sintering raw material affects sintered reduction strength and NOx generation as shown in the figure, in which the reduction strength indicates the resistance against pulverization in a reducing atomosphere at 500 to 600°C. In sintering operation, NOx generation in exhaust gas and reduction strength of product are first observed, then the curves in the figure are used to shift these values to a desired value. For example, if NOx generation is too high, the acidity in part of less than 1mm in the raw sintering ore is incresed. If the reduction strength is too low, the acidity in part of less than 1mm in the raw material is reduced.
COPYRIGHT: (C)1979,JPO&Japio
JP3914878A 1978-04-05 1978-04-05 Sinter operation control Pending JPS54131503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3914878A JPS54131503A (en) 1978-04-05 1978-04-05 Sinter operation control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3914878A JPS54131503A (en) 1978-04-05 1978-04-05 Sinter operation control

Publications (1)

Publication Number Publication Date
JPS54131503A true JPS54131503A (en) 1979-10-12

Family

ID=12545013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3914878A Pending JPS54131503A (en) 1978-04-05 1978-04-05 Sinter operation control

Country Status (1)

Country Link
JP (1) JPS54131503A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013023730A (en) * 2011-07-20 2013-02-04 Nippon Steel & Sumitomo Metal Corp Method for producing sintered ore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013023730A (en) * 2011-07-20 2013-02-04 Nippon Steel & Sumitomo Metal Corp Method for producing sintered ore

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