公开(公告)号：US11326217B1

公开(公告)日：2022-05-10

申请号：US17478880

申请日：2021-09-18

Applicant: University of Science and Technology Beijing

Inventor： Qing Liu ,  Zicheng Xin ,  Jiangshan Zhang ,  Junguo Zhang ,  Chunhui Zhang

IPC: C21C7/00

Abstract: A method and system for predicting an addition amount of slagging lime during ladle furnace (LF) refining, and an LF refining method are provided. The method includes: S1: calculating an actual sulfur distribution ratio in combination with a Kungliga Tekniska Högskolan (KTH) model and a least square method by using LF refining parameters; S2: calculating, according to a principle of sulfur mass conservation, a mass of final slag by using the LF refining parameters and the actual sulfur distribution ratio obtained in S1; and S3: calculating, according to a principle of material conservation during LF refining, an addition amount of slagging lime during the LF refining by using the LF refining parameters and the mass of the final slag obtained in S2, thereby predicting the addition amount of the required slagging lime.