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The system has a combustion chamber (center), secondary heat exchanger (left of center), combustion air preheater (far left), and exhaust blower (lower left).
The incinerator system burns fumes created when oxidizing virgin asphalt to make "steep roof asphalt." Oxidation is achieved by blowing air into liquid asphalt while in "blow" tanks.
The process produces fumes that cannot be allowed to pollute the atmosphere. Consequently, the Heatec incinerator burns the fumes at temperatures of 1500 degrees F, leaving only carbon dioxide and steam.
About 5 million Btu of heat from incinerating the fumes is recovered and used for other heating functions that save on fuel costs.
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