In addition, a separate residual heat recovery device is installed for preheatingcombustionair and gas.
采用分离型余热回收装置预热助燃空气和煤气等。
2
The gas burning and airpreheating procedure in flues operates on a cyclic basis in which some flues are burning gas and others are giving up their heat to incoming combustionair.
The high blast temperature technology by top combustionpreheating furnace preheating the intensifying combusted air is used for the hot stoves of New no. 2 and no. 3 BFs in Angang.