Title:
INJECTION REGULATION AND CONTROL DEVICE AND METHOD FOR BLAST FURNACE LOW-CARBON SMELTING
Document Type and Number:
WIPO Patent Application WO/2023/097942
Kind Code:
A1
Abstract:
An injection regulation and control device and method for blast furnace low-carbon smelting. The injection regulation and control device comprises blast furnace tuyeres (2) used for introducing rich oxygen or pure oxygen to form tuyere raceways (4). A plurality of temperature-adjusting injection openings (1) are evenly formed in the circumferential direction of a blast furnace, each of the temperature-adjusting injection openings (1) injects a hydrocarbon component-containing injection object (6) to the blast furnace, and the temperature-adjusting injection openings (1) are located, in an axial direction, within a height range where a soft melting dripping zone is located and are not lower than the positions where the blast furnace tuyeres (2) are located. Thermal cracking reaction is performed on the hydrocarbon component-containing injection object (6) by utilizing the temperature near the tuyere raceways (4) to form a hydrocarbon thermal cracking heat absorption area (3), gas products generated by the thermal cracking reaction of the hydrocarbon component-containing injection object (6) increase the blast furnace gas volume, and redundant heat in a lower high-temperature area is carried to the upper part of the blast furnace at the same time; the problem that an oxygen-enriched blast furnace or an oxygen blast furnace is "hot at the lower part and cold at the upper part" is flexibly solved.
Inventors:
ZHOU GUOCHENG (CN)
ZHU KAI (CN)
LIU QUANLI (CN)
ZHANG YUWEN (CN)
LU XIONGGANG (CN)
YANG YUWEN (CN)
ZHU KAI (CN)
LIU QUANLI (CN)
ZHANG YUWEN (CN)
LU XIONGGANG (CN)
YANG YUWEN (CN)
Application Number:
PCT/CN2022/086288
Publication Date:
June 08, 2023
Filing Date:
April 12, 2022
Export Citation:
Assignee:
CHANGLI XINGGUO PREC PARTS CO LTD (CN)
UNIV SHANGHAI (CN)
UNIV SHANGHAI (CN)
International Classes:
C21B5/06; C21B7/16
Foreign References:
| CN114134271A | 2022-03-04 | |||
| CN101448962A | 2009-06-03 | |||
| CN104131122A | 2014-11-05 | |||
| AU8294687A | 1988-06-30 | |||
| JP2008231529A | 2008-10-02 | |||
| CN1300858A | 2001-06-27 | |||
| CN112322814A | 2021-02-05 |
Attorney, Agent or Firm:
HAIHONG JIACHENG INTELLECTUAL PROPERTY & PARTNERS (CN)
Download PDF: