JPS57135888A - Preparation of molded coke for metallurgical use - Google Patents
Preparation of molded coke for metallurgical useInfo
- 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
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
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)
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 |
-
1981
- 1981-02-16 JP JP2120781A patent/JPS57135888A/en active Pending
Cited By (3)
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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