Application practice of BOF Slag tailings in steelmaking process

The present paper introduces the steel production and BOF slag processing techniques in Steelmaking Sector of Bayuquan Iron and Steel Subsidiary, Ansteel. The technology of slag tailings utilization has been developed under the consideration of the properties of slag tailing and the characteristics of slag forming in BOF steelmaking operation practice. The processing of the BOF slag includes hot disintegration,a magnetic separation and transports of the separated beneficiate block steel and slag tailing. The results of BOF production practice show that the application of slag tailings as slag forming materials is benefitial to the acceleration of slag forming, the dephosphorization, as well as natural resources and cost saving. Therefore, its utilization as slag forming materials in BOF operation practice is a good way for the cycling BOF slag, and can reduce the pressure to the environment by BOF production.