Automatic steelmaking and slag-leaving operation method for converter

The invention discloses an automatic steelmaking and slag-leaving operation method for a converter. The method comprises the following steps: (1) collecting the FeO content, and lower furnace molten iron ingredients in an end-point slag of the furnace by a secondary computer system; (2) adding a modifier for regulating the slag according to the FeO content in the slag, and protecting the furnace by slag splashing, wherein the slag splashing time is over 5 minutes; (3) determining the residual sludge amount according to the content of the lower furnace molten iron [Si], and automatically matching corresponding residual slag mode number by the system; (4) automatically matching an execution parameter of a corresponding end-point carbon target value according to the residual slag mode number and the residual slag mode group number subdivided by the corresponding end-point carbon target value; (5) carrying out related calculation on a secondary system steelmaking model, automatically generating an oxygen smelting step and a charging list, and transmitting to a primary system to implement. By adopting the automatic steelmaking and slag-leaving operation method, large splashing when the molten iron is blended can be effectively prevented, automatic steelmaking under the residual slag mode is achieved, consumption of a solvent and a steel material is reduced, and the production efficiency is improved.