METHOD OF HEATING UP FURNACE BOTTOM, AND BURNER LANCE USED IN THE METHOD
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United States of America Patent
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Issued Date -
Jun 9, 2022
app pub date -
Mar 23, 2020
filing date -
Mar 23, 2020
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Abstract
A method of heating up a furnace bottom and a burner lance used in the method are proposed. The method of heating up the furnace bottom includes a step of opening, in the tap hole, a burner lance insertion hole having a diameter larger than a diameter of the burner lance so as to penetrate into the furnace, a step of installing the burner lance in the opened burner lance insertion hole, a step of filling a gap between the installed burner lance and a furnace exterior side of the tap hole with a refractory, and a step of blowing in gas for heating into the furnace from the burner lance to heat up the furnace bottom.
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