Method for controlling aluminum content in slag washing direct-feeding aluminum killed steel

The invention belongs to the field of ferrous metallurgy, and particularly relates to a method for controlling the content of aluminum in slag washing direct feeding aluminum killed steel, which comprises the following steps: S1, controlling materials: checking scrap steel entering a furnace; s2, the converter carbon temperature is controlled, specifically, the tapping temperature of low-carbon steel and medium-carbon steel in the converter working procedure is controlled to be 1650-1680 DEG C; s3, steel tapping and slag tapping are controlled; s4, tapping, deoxidizing and alloying: adding an alloy, adding lime, a slag washing material and an aluminum block in batches, and ensuring that the entering oxygen content of an argon station is 15-50PPM; s5, argon station slag washing is adjusted, specifically, the temperature is adjusted to 1610 +/-5 DEG C, and aluminum wires are fed after medium blowing; aluminum calcium balls are added, aluminum powder is rapidly added after medium blowing slag is foamed, soft blo