DEVICE FOR INJECTING PRE-HEATED AIR TO THE BLAST FURNACE

摘要

This equipment consists of at least one centric pipe element (126), connected on one side to the first connecting piece (128) via the ball joint (138) and the first compensatory (144), while the first connecting piece provides supply of pre-heated air, and o the opposite side via the second ball joint (140) and the second compensatory (146) with the second connecting piece (130). The second ball joint (140) is used for length contraction of the equipment and this ball join is oriented in the opposite direction as the first ball join (138) is, the curvature middle of which (y) is located on the axis closed to the second connecting piece (130), on its internal side.