EXTENSION ADAPTER FOR AIR HEATER WITH MODULAR EXTENSION (VERSIONS), LEVELLING PLATE (VERSIONS) AND SUPPORT ELEMENT FOR SAID ADAPTER Russian patent published in 2011 - IPC C21B9/02 F27D17/00 

FIELD: metallurgy.

SUBSTANCE: invention relates metallurgy, particularly, to structural elements of blast and open-flame furnaces. Extension adapter for air heater with modular extension comprises horizontal layer of levelling plates arranged on horizontal layer of support elements. Each through hole in levelling plates expands upward or represents a set of channels diverging upward. Said through holes have vertical walls or walls expanding downward all over the length of each hole.

EFFECT: reduced metal input, ease of manufacture, higher efficiency.

5 cl, 6 dwg