Title:
LOW-CARBON SMELTING SYSTEM AND METHOD BASED ON BLAST FURNACE-STEELMAKING FURNACE PROCESS COUPLED CARBON CYCLE
Document Type and Number:
WIPO Patent Application WO/2023/240753
Kind Code:
A1
Abstract:
A low-carbon smelting system and method based on a blast furnace-steelmaking furnace process coupled carbon cycle. The smelting system comprises a blast furnace (100), a steelmaking furnace (200), a CO concentration monitoring device (300), a coal gas collecting and treating device (400), a heating device (500) and a storing and pressurizing device (600), wherein the steelmaking furnace (200) is connected to the blast furnace (100) and is used for receiving carbon-containing molten iron discharged from the blast furnace (100) to perform steelmaking, so as to obtain steelmaking coal gas; the CO concentration monitoring device (300) is connected to the steelmaking furnace (100) and is used for measuring a CO concentration in the steelmaking gas in real time; the coal gas collecting and treating device (400) is connected to the steelmaking furnace (200) and the blast furnace (100) and is used for collecting and treating high-CO-concentration steelmaking coal gas, so as to obtain a CO-rich gas and a CO2-rich gas; the heating device (500) is connected to the steelmaking furnace (200) and is used for collecting low-CO-concentration steelmaking coal gas and combusting same to obtain heat, which is used for heating the CO-rich gas, which is sprayed back to the blast furnace (100); and the storing and pressurizing device (600) is connected to the coal gas collecting and treating device (400) and the steelmaking furnace (200) and is used for collecting the CO2-rich gas and spraying same into the steelmaking furnace (200). The technical effect of making full use of steelmaking coal gas can be obtained.
Inventors:
ZHAO YUNJIAN (CN)
WANG GANG (CN)
ZOU ZHONGPING (CN)
ZHENG JUN (CN)
XIONG SHIGEN (CN)
HOU SHIFENG (CN)
NIU QUN (CN)
XU JUN (CN)
HE KUN (CN)
LONG MENG (CN)
LU ZHEN (CN)
WANG GANG (CN)
ZOU ZHONGPING (CN)
ZHENG JUN (CN)
XIONG SHIGEN (CN)
HOU SHIFENG (CN)
NIU QUN (CN)
XU JUN (CN)
HE KUN (CN)
LONG MENG (CN)
LU ZHEN (CN)
Application Number:
PCT/CN2022/108135
Publication Date:
December 21, 2023
Filing Date:
July 27, 2022
Export Citation:
Assignee:
CISDI ENG CO LTD (CN)
International Classes:
C21C5/38; C21B5/06; C21C5/56
Foreign References:
| CN115198043A | 2022-10-18 | |||
| CN113621745A | 2021-11-09 | |||
| CN109945665A | 2019-06-28 | |||
| CN101818227A | 2010-09-01 | |||
| CN215924990U | 2022-03-01 | |||
| CN109837358A | 2019-06-04 | |||
| KR20140002248A | 2014-01-08 |
Attorney, Agent or Firm:
TIDYTEND INTELLECTUAL PROPERTY LAW FIRM (CN)
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