The invention discloses a
smelting process for efficient slagging and desulfurization of LF aluminum killed steel. The
smelting process for efficient slagging and desulfurization of the LF aluminum killed steel comprises the following steps that S1, converter
steelmaking is carried out, and the end point temperature of a converter is controlled within 1610-1660 DEG C; the adding amount of
scrap steel is less than or equal to 70 tons; and a strong bottom blowing mode is adopted in the later converter blowing stage to enhance
molten pool stirring. According to the
smelting process for efficientslagging and desulfurization of LF aluminum killed steel, converter tapping,
argon blowing
station and LF refining tasks are adjusted through
process design to form a three-in-one refining process ofconverter tapping,
argon blowing
station and LF refining, LF slagging work is advanced, a rapid slagging process
system is formulated, 80% or above of slagging
slag materials are added in the tappingprocess through design optimization, and
slag melting is promoted by fully utilizing tapping steel flow
impact kinetic energy,
molten steel sensible heat and
ladle bottom
argon blowing stirring kinetic conditions; an argon
station adopts a top-bottom strong stirring proper deoxidation process,
slag is rapidly formed to promote steel slag reaction, top slag reduction pre-desulfurization is realized, and LF slagging desulfurization burden is reduced; and an LF target is heated once to basically complete slagging and desulfurization tasks.