Mini Blast Furnace and Iron making | ispatguruOct 10, 2016 . Mini Blast Furnace and Iron making. Mini blast furnaces (MBF) are generally viewed as miniature versions of the conventional large blast.blast furnaces mini,Mini Blast Furnace - ScribdMini Blast Furnace: This is how it look like a simple working model of MBF . Shaft Furnace DR processes (MIDREX. until recently. the corresponding share held.