The Research Of Increasing The Sinter-bed Permeability

Deep bed sintering technique have already been extensively applied steel business enterprise in each at home and abroad currently, how to increasing the sinter-bed permeability is the key of carry out that technical, This article circumambience the factor which influence the sinter-bed permeability carry on a set detailed research.We design two sets of experiments in the laboratory studied stage, experiment Group one, we adopt three factors three and three levels by orthogonal design, for researches ratio of lime, drum mixer rotation speed, mix time to the influence sinter-bed permeability, experiment Group two is according to the mechanism of mixture pelleted and the raw material basic property of ore which anteel westpart sinter plant used, the amount of Australia mineral and the amount of QiDashan fine mineral and the amount of DaGushan were selected as three factors of two times repressive and orthogonal test, The quation which the two times regressive dertimered give a best blend project for sinter-bed permeability。In the commercial studied stage, firstly, we reform the added moisture method at secondary mixer, experimen result is that the part of in the under 1 mm mix lower 5.5%,and sinter-bed permeability index raised 8.1 J.P.U, then through one randomed factor test make sure the best added moisture for pelleting and sintering at the property of ore which anteel westpart sinter plant used, third, we adopted linear orthogonal experiment design method to seek optimum parameter of second process of mix and micro-pelletized, select rotation speed of mixer and the percent fillingd and percentage of returns in mix as the factors of experiment, analysis result of experiment and make sure these influence levels by Minitab15 of the quality management software, finally, we set double loosening bar at sinter machine, it can increasing the sinter-bed permeability and production if we set it optimum.This article basic on the anteel westpart sinter plant production and combine its process characteristics, the research of increasing the sinter-bed permeability is systemly and extensively, the result have popularized value.