Study on improving basicity stability rate of sinter in 360m2 sintering machine
The basicity stability rate of sinter is directly related to the stability of blast furnace produc⁃tion, meanwhile also affects various economic and technical indicators of blast furnace. In 2020, after the overhaul of the 360m2 sintering machine of Tianjin Iron and Steel Group Co., Ltd., the output and quality of sinter have been significantly improved,but because the blending ore of the 360m2 sintering machine is directly supplied by the stock yard ingredients room, the stability of the composition of the sintering mixture is poor, and the basicity of the sintered finished ore fluctuates greatly, which has affected the sta⁃bility of the blast furnace production. This paper analyses the factors affecting sinter basicity stability rate of 360m2 sintering machine, determines the reasons affecting sinter basicity stability rate, and puts forward the process improvement measures. Through the implementation of process measures such as im⁃proving the stability of raw material and fuel composition, debasing the fluctuation of blending ore compo⁃sition in the blending batching process, and reducing the basicity fluctuation of the sintering mixture in the sintering batching process, the sinter basicity stability rate of 360m2 sintering machine has been sig⁃nificantly improved.