Method for recycling high temperature steel residues of converter

The invention discloses a method for recycling high temperature steel residues of a converter. The method comprises the following steps: (a) the tapping temperature of an upper converter is controlled within 1590 to 1630 DEG C, and all the steel residues after tapping are reserved; (b) a lower gun blows nitrogen to perform a first slag splashing, and blowing time is 1.5 to 2.5 minutes; (c) cooling agents are added, and the added amount of the cooling agents is 15 to 20 wt% of all the steel residues; (d) the lower gun blows the nitrogen to perform a second slag splashing, and the blowing time is 1 to 1.5 minutes; (e) charging to a lower converter is prepared after finishing the slag splashing, wherein the blowing pressure of the nitrogen is 0.7 to 0.9 Mpa, and blowing flow is 12000 to 14000 Nm3/h. Through the adoption of the method provided by the invention, high temperature liquid steel residues can be completely solidified within a short time, the problem that liquid residues still remain in the converter because the surfaces of the high temperature steel residues of the converter are solidified can be effectively avoided, the high temperature steel residues of the converter can be recycled safely and reliably, the production cost of the converter is reduced by about 10 yuan per ton, and the waste of resources is avoided.