Cleaning and liquid contact with solids – Apparatus – With heating – cooling or heat exchange means
Patent
1992-04-16
1994-08-02
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With heating, cooling or heat exchange means
134111, 134 19, 110215, B08B 310
Patent
active
053336321
ABSTRACT:
This invention comprises a small, mobile, energy-efficient, batch-type soil roaster which can be utilized directly at a contamination site. Hydrocarbon contaminated dirt or soil is placed into a rotating drum. The soil is fired or roasted utilizing a burner until all hydrocarbons are completely evaporated out of the soil. The hydrocarbon gases that are vaporized from the soil go through a water scrubber filter and an afterburner system where the hydrocarbon component of the vapors or gases are burned off and destroyed at high temperatures. A vortex effect is created within the integral afterburner/stack unit, causing the hydrocarbon gases to remain in the stack longer, thereby ensuring a more complete burning of the hydrocarbons.
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Ledin Richard E.
Weerts Allen L.
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