Table 1 Feature descriptions.

From: Dynamic feature selection for silicon content prediction in blast furnace using BOSVRRFE

Category

Variable Names

Quantity

Chemical Composition of Coal Powder and Coke

Moisture Content, Carbon Content, Ash Content, Volatile Matter, Sulfur Content

5

Physical and Chemical Properties of Lump Ore

Moisture Content, Total Iron Grade, Silicon Dioxide Content, Sulfur Content, Aluminum Oxide Content

5

Chemical Composition of Pellets

Pellet Grade, Silicon Dioxide Content, Sulfur Content, Aluminum Oxide Content, Particle Size Distribution

5

Chemical Composition of Sinter

Like pellets, but with specific differences in chemical composition and particle size distribution characteristics

11

Dynamic Process Parameters

Key indicators such as Coal Injection Rate, Fuel Ratio, Wind Volume (from 15 min to 8 h)

150

Chemical Composition of Molten Iron

Silicon, Phosphorus, Sulfur Content, Molten Iron Temperature, Output, Iron Content in Slag, Alkalinity

7

Silicon Content in Molten Iron from the Previous Furnace

Single Variable Si

1