Burner kettle for asphalt paving apparatus
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United States of America Patent
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Aug 15, 2017
Issued Date -
N/A
app pub date -
Aug 15, 2016
filing date -
Aug 14, 2015
priority date (Note) -
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Abstract
A burner system for heating the material product, i.e., asphalt, includes a burner kettle designed with a thicker bottom heat transfer plate, added heat transfer oil (HTO) circulation pumps, a spiral circulation ring and heat restriction rings. The spiral circulation ring spirals up the burner kettle to move the HTO around the entire circumference of the burner kettle to eliminate hotspots. An HTO pump moves cooler oil from the top of the kettle directly across the hottest part of the bottom of the kettle, i.e., across the heat transfer plate. Keeping this zone cool will eliminate heat stress of the material. Heat restriction rings direct the heat back and forth throughout the burner kettle for increased efficiency.
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