Method for implementing efficient and low-consumption smelting of 4000m blast furnace by aid of scanning radar

The invention provides a method for implementing efficient and low-consumption smelting of 4000m blast furnace by the aid of a scanning radar and belongs to the field of blast furnace operations. The method includes: acquisition of shapes of charge levels, charge level O/C ratio distribution calculation, establishment of blast-furnace upper adjustment case library, hearth condition evaluation,slag iron emission evaluation, tuyere air feed area and air speed determination, establishment of blast-furnace upper and lower adjustment case libraries, furnace condition matching, furnace conditionoptimizing and furnace condition adjustment unit. The method can adapt to ever-changing furnace conditions, furnace condition data is acquired through the scanning radar, the upper and lower adjustment case libraries are established, the furnace condition adjustment is performed after evaluation and matching, the case libraries are further supplemented with cases, updating and maintaining are facilitated, the problem about a