JPS553458A - Controlling of particle size of coal for coke production - Google Patents

Controlling of particle size of coal for coke production

Info

Publication number
JPS553458A
JPS553458A JP7637478A JP7637478A JPS553458A JP S553458 A JPS553458 A JP S553458A JP 7637478 A JP7637478 A JP 7637478A JP 7637478 A JP7637478 A JP 7637478A JP S553458 A JPS553458 A JP S553458A
Authority
JP
Japan
Prior art keywords
coal
fluidity
crushed
particle size
diameter
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
JP7637478A
Other languages
Japanese (ja)
Inventor
Masaharu Matsui
Hiroshi Yamamoto
Tsutomu Matsuno
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP7637478A priority Critical patent/JPS553458A/en
Publication of JPS553458A publication Critical patent/JPS553458A/en
Pending legal-status Critical Current

Links

Landscapes

  • Coke Industry (AREA)

Abstract

PURPOSE: To produce coke having high mechanical strength from a low-fluidity coal, economically and easily, by crushing a high-fluidity coal so as to obtain a size distribution wherein particles having diameter of ≤3mm amount to ≤90%, and dispersing the crushed coal into a low-fluidity coal.
CONSTITUTION: A relatively hard, high-fluidity coal having the maximum fluidity of ≥1000 ddpm, a Hardgrove grindability index of lower than that of the average value of the mixed coal, and an inert content of ≤20%, is crushed to obtain a size distribution wherein the particles having a diameter of ≤3mm amount fo ≤90%. The crushed coal is mixed with a low-fluidity coal and crushed again to attain the required particle size distribution wherein the particle having a diameter of ≤3mm amount to 80W88%. The cost of the coal can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP7637478A 1978-06-26 1978-06-26 Controlling of particle size of coal for coke production Pending JPS553458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7637478A JPS553458A (en) 1978-06-26 1978-06-26 Controlling of particle size of coal for coke production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7637478A JPS553458A (en) 1978-06-26 1978-06-26 Controlling of particle size of coal for coke production

Publications (1)

Publication Number Publication Date
JPS553458A true JPS553458A (en) 1980-01-11

Family

ID=13603564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7637478A Pending JPS553458A (en) 1978-06-26 1978-06-26 Controlling of particle size of coal for coke production

Country Status (1)

Country Link
JP (1) JPS553458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128866A1 (en) * 2012-02-29 2013-09-06 Ｊｆｅスチール株式会社 Method for preparing coal for use in coke manufacturing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128866A1 (en) * 2012-02-29 2013-09-06 Ｊｆｅスチール株式会社 Method for preparing coal for use in coke manufacturing
JP5578293B2 (en) * 2012-02-29 2014-08-27 Ｊｆｅスチール株式会社 Preparation method of coal for coke production
EP2977429A1 (en) * 2012-02-29 2016-01-27 JFE Steel Corporation Method for preparing coal for coke making
US9708558B2 (en) 2012-02-29 2017-07-18 Jfe Steel Corporation Method for preparing coal for coke making

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