DESILICIFING METHOD OF HOT METAL WITH IMPROVED DESILICIFING RATE

摘要

In talgyu method of the invention In the accelerator by the talgyu efficiency improved hot metal in order to adjust the ray of the input location and the time of deregulation to repair the hot metal chulseon from the blast furnace to the ray (3), and to facilitate the talgyu reaction It relates, comprising the steps of: in the 30 to 50% of the total deregulation input before the molten iron in the repair of the ray; In the step of generating natang site generated during repair the hot metal into the ray of fluorite (CaF2) in the molten iron per tonne and 0.6 ~ 1.2㎏; It provides the hot metal after the start talgyu repair method of this talgyu efficiency characterized in that from 1/5 of the total time of the molten iron repair time comprising: In the rest deregulation occurred in natang improved hot metal parts.; Thus, the present invention has the effect of suppressing the excessive developer overflows the slag caused by suppressing the foaming phenomenon occurring during operation and talgyu, whereby the ladle can it is possible to uniformly manage the dose improve silsuyul.