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Patent Searching and Data


Title:
BLAST FURNACE OPERATION METHOD AND BLAST FURNACE OPERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/124856
Kind Code:
A1
Abstract:
The present invention provides a blast furnace operation method and a blast furnace operation apparatus arranged to implement the same, the blast furnace operation method comprising the steps of: arranging a blast furnace input material inside a blast furnace; preparing an oxygen-containing material which is present in a liquid state and/or a solid state at room temperature and allows heat and oxygen to be generated in an internal operation atmosphere of the blast furnace; producing molten pig iron while blowing hot air into the inside of the blast furnace; and putting the oxygen-containing material inside the blast furnace, wherein the blast furnace operation method and the blast furnace operation apparatus can stably remove a densely filled layer formed between a winnower and the center of a blast furnace.

Inventors:
CHUNG JIN KYUNG (KR)
MIN BYUNG DAE (KR)
Application Number:
PCT/KR2018/015704
Publication Date:
June 27, 2019
Filing Date:
December 11, 2018
Export Citation:
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Assignee:
POSCO (KR)
International Classes:
C21B5/00; C21B7/16
Foreign References:
KR101759333B12017-07-18
KR20130139478A2013-12-23
KR19990013551U1999-04-15
JP2011102439A2011-05-26
KR20130072684A2013-07-02
Attorney, Agent or Firm:
NAM, Seung-Hee (KR)
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