JPS57135888A - Preparation of molded coke for metallurgical use - Google Patents

Preparation of molded coke for metallurgical use

Info

Publication number
JPS57135888A
JPS57135888A JP2120781A JP2120781A JPS57135888A JP S57135888 A JPS57135888 A JP S57135888A JP 2120781 A JP2120781 A JP 2120781A JP 2120781 A JP2120781 A JP 2120781A JP S57135888 A JPS57135888 A JP S57135888A
Authority
JP
Japan
Prior art keywords
coal
mixing
deviation value
molded coke
coke
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
JP2120781A
Other languages
Japanese (ja)
Inventor
Katsuaki Okuhara
Katsuaki Kobayashi
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 TEKKO RENMEI
Original Assignee
NIPPON TEKKO RENMEI
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 TEKKO RENMEI filed Critical NIPPON TEKKO RENMEI
Priority to JP2120781A priority Critical patent/JPS57135888A/en
Publication of JPS57135888A publication Critical patent/JPS57135888A/en
Pending legal-status Critical Current

Links

Landscapes

  • Coke Industry (AREA)

Abstract

PURPOSE: To provide molded coke having excellent hot characteristics, by mixing several kinds of coal and controlling the fluctuation range of the degree of coalification of the mixed coal using a specific deviation value as its index.
CONSTITUTION: In preparing molded coke by mixing several kinds of coal, the fluctuation range of the degree of coalification of the mixed coal is controlled using a deviation value represented by the formula where ai is a mixing ratio (wt%) of i brand coal; and vi is a volatile matter content (d.a.f.b%) of i brand coal as its index. Mixing of coal in such a way that the deviation value obtained from the formula becomes 0.4 or less, preerably 0.3 or less can provide high- strength coke having a value of strength after CO2 reaction (CSR) of 35 or more.
COPYRIGHT: (C)1982,JPO&Japio
JP2120781A 1981-02-16 1981-02-16 Preparation of molded coke for metallurgical use Pending JPS57135888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2120781A JPS57135888A (en) 1981-02-16 1981-02-16 Preparation of molded coke for metallurgical use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2120781A JPS57135888A (en) 1981-02-16 1981-02-16 Preparation of molded coke for metallurgical use

Publications (1)

Publication Number Publication Date
JPS57135888A true JPS57135888A (en) 1982-08-21

Family

ID=12048538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2120781A Pending JPS57135888A (en) 1981-02-16 1981-02-16 Preparation of molded coke for metallurgical use

Country Status (1)

Country Link
JP (1) JPS57135888A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297589A (en) * 1988-10-04 1990-04-10 Mitsubishi Kasei Corp Method for estimation of coke strength
JPH03229791A (en) * 1990-02-02 1991-10-11 Nkk Corp Production of coke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0297589A (en) * 1988-10-04 1990-04-10 Mitsubishi Kasei Corp Method for estimation of coke strength
JPH03229791A (en) * 1990-02-02 1991-10-11 Nkk Corp Production of coke
JPH0819415B2 (en) * 1990-02-02 1996-02-28 日本鋼管株式会社 Coke making method

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