Rotary hearth furnace, and method for producing reduced iron using rotary hearth furnace
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United States of America Patent
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Aug 30, 2022
Grant Date -
Oct 3, 2019
app pub date -
Jun 28, 2017
filing date -
Jul 15, 2016
priority date (Note) -
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Abstract
A rotary hearth furnace includes: a furnace body which surrounds a ring-like space; a hearth portion which forms a bottom portion of the ring-like space and is rotatable in the rotational direction; a gas exhaust portion which discharges an exhaust gas generated in the ring-like space to the outside of the furnace body; an introducing portion; and a flow rate regulating portion. The introducing portion is disposed upstream of the gas exhaust portion in the rotational direction and introduces a pressure regulating gas into a non-heating section of the ring-like space. The flow rate regulating portion is disposed between the introducing portion and the gas exhaust portion and regulates a flow rate of a gas by adjusting an opening area of the non-heating section.
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