SYSTEM FOR FEEDING DISPERSED MATERIAL INTO STEEL LADLE WHEN TAPPING MOLTEN METAL FROM CONVERTER Russian patent published in 2025 - IPC C21C7/06 C21C5/42 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly to equipment for feeding disperse material into steel ladle at tapping molten metal from converter. System comprises an injection unit comprising a storage bin for disperse materials and a high-pressure bin, and a system of pipelines for supply of disperse materials extending from the injection unit. Pipeline system comprises a swivel, passes inside the trunnion and support ring of the converter and comes out at its tap hole, at the same time the pipeline outlet is located from the axis of the converter tap hole at the distance of not more than twelve its diameters. Angle between the axis of the outlet end of the pipeline and the axis of the notch of the converter in the horizontal plane is in range of 10-30°.

EFFECT: invention makes it possible to develop a system for supply of dispersed materials, in particular, deoxidizers, to steel-ladle, and to reduce their wastage, as well as to obtain steel with satisfactory purity indices from non-metallic inclusions.

3 cl, 4 dwg, 1 tbl, 1 ex