Blast Furnace Spool Liner
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United States of America Patent
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Issued Date -
Aug 20, 2015
app pub date -
Aug 7, 2013
filing date -
Aug 9, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hearth refractory assembly is provided to improve gas sealing of a blast furnace hearth. The blast furnace hearth has a metal outer shell and a spool extending outwardly therefrom. The spool has a spool metal outer wall and forms an opening in said hearth metal outer shell. The refractory liner assembly includes a plurality of hearth refractory bricks arranged in a stacked configuration and lining the interior of the hearth metal outer shell and the spool. A liner is positioned between the hearth refractory brick and said hearth metal outer shell or within the spool and covers substantially all of the spool opening. The liner is a sheet made substantially from graphite.
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