A PROCESS TO DETERMINE IN REAL-TIME THE PROPORTIONS, DISTRIBUTION AND TRACKING OF BURDEN RECEIPT IN A BLAST FURNACE PRODUCING HOT METAL AND SLAG WITH DESIRED CHEMISTRIES

摘要

A process to determine in real-time the proportions, distribution and tracking of burden receipt in a blast furnace producing hot metal and slag with desired chemistries, comprising the steps of: preparing an optimal burden proportion of the burden materials consisting of proportions of ore, sinter, pellet, coke and fluxes determined through chemical balance of hot metal elements such as Fe, Mn and P including the slag compounds for example Al2O3, MgO, CaO, SiO2, the loss of oxides in the form of flue-dust in the throat region of the blast furnaces as well as the slag deposit in the bosh region being taken into account, wherein the real time chemistry of the raw materials collected from the data base is applied in the chemical balance equations; generating a charging matrix which transforms said optimum burden receipt (%) into weights (tons) and create the charging sequences of the burden in the stock-house; developing a surface profile of the burden once charged and distributed at the furnace throat level based on gravitational laws, momentum and trajectory; determining and displaying the movement of the burden after charging into the furnace in the form of descending layers; and computing the burden descent rate by extracting he useful signals from the blast furnace radar which continuously measuring the level of the burden surface at the throat level remotely from a home location.