Title:
METHOD AND SYSTEM FOR QUANTITATIVELY PRESUMING SILICON-SULFUR CONTENT OF MOLTEN IRON DURING BLAST FURNACE TAPPING
Document Type and Number:
WIPO Patent Application WO/2022/105226
Kind Code:
A1
Abstract:
The present invention relates to the field of blast furnace smelting, and discloses a method and system for quantitatively presuming silicon-sulfur content of molten iron during blast furnace tapping. The method comprises the following steps: step S1: obtaining a data set comprising molten iron feature image information and corresponding measurement data of silicon-sulfur content of molten iron, and performing fitting according to the data set to obtain a relational expression between molten iron feature image information and silicon-sulfur content of molten iron when a blast furnace taphole is formed; and step S2: obtaining molten iron feature image information during blast furnace taphole formation of a target heat, and performing calculation according to the relational expression to obtain the silicon-sulfur content of the molten iron. According to the present invention, silicon-sulfur information of the molten iron of a blast furnace can be continuously and quickly obtained in a conventional operation, and the integration of heat balance monitoring of the blast furnace is improved, such that the problem of excess or shortage of a blast furnace heat source is solved, and an important contribution is made for stabilizing blast furnace operation by a blast furnace operator. Meanwhile, detection costs are greatly saved, such that production costs are reduced.
Inventors:
LI JUYAN (CN)
YE LIDE (CN)
OU YAN (CN)
YE LIDE (CN)
OU YAN (CN)
Application Number:
PCT/CN2021/101682
Publication Date:
May 27, 2022
Filing Date:
June 23, 2021
Export Citation:
Assignee:
WISDRI ENGINEERING & RES INCORPORATION LIMITED (CN)
International Classes:
C21B5/00; C21B7/24
Foreign References:
| CN112501367A | 2021-03-16 | |||
| CN108998608A | 2018-12-14 | |||
| JP2017066510A | 2017-04-06 | |||
| CN110184401A | 2019-08-30 | |||
| CN111593151A | 2020-08-28 | |||
| CN105160683A | 2015-12-16 |
Other References:
DONG PAN ET AL.: "Temperature Measurement and Compensation Method of Blast Furnace Molten Iron Based on Infrared Computer Vision", IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, vol. 68, no. 10, 22 November 2018 (2018-11-22), XP011745640, ISSN: 0018-9456, DOI: 10.1109/TIM.2018.2880061
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (CN)
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