The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Aug. 02, 2018
University of Science and Technology Beijing, Beijing, CN;
Rong Zhu, Beijing, CN;
Guangsheng Wei, Beijing, CN;
Kai Dong, Beijing, CN;
Jingxin Zhao, Beijing, CN;
Xuetao Wu, Beijing, CN;
Tianping Tang, Beijing, CN;
Xueliang Wang, Beijing, CN;
Wenhe Wu, Beijing, CN;
Shaoyan Hu, Beijing, CN;
Yun Wang, Beijing, CN;
University of Science and Technology Beijing, Beijing, CN;
Abstract
A clean and rapid smelting method in an electric arc furnace with full scrap steel, is suitable for smelting process of 30-300 t electric arc furnace with full scrap steel. In the smelting process of the electric arc furnace with full scrap steel, different kinds of mediums are injected by an injection lance which is installed inside refractory material of sidewall at the bottom of the electric arc furnace in different stages of smelting. Carburization is utilized in molten pool to accelerate melting down and improve carbon content of the molten pool at the stage of recarburizing and fluxing. A reaction in the molten pool is intensified at the stage of high efficiency dephosphorization and deep denitrogenation, to enhance efficient dephosphorization and deep denitrification of the reaction in the molten pool, thereby accelerating the smelting speed of the electric arc furnace with full scrap steel, improving effect of dephosphorization and denitrification.