Apparatus and methods for controlling high temperature gases

Details Apparatus and methods for controlling high temperature gases Apparatus and methods for controlling high temperature gases

1992-12-22

1995-01-31

Straub, Gary P.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

165103, 4232453, 422200, 405258, A62D 300, F28F 2700, B01J 800, C22B 2610

Patent

active

053860802

ABSTRACT:
The contaminants in the material are volatilized in a drum having a burner. The volatilized contaminants are separated from material particulates in a separator and are preheated in a heat exchanger for flow into an afterburner. The afterburner burns the volatilized contaminants to provide a clean exhaust gas to the hot side of the heat exchanger, the clean exhaust gas being cooled in the heat exchanger and exhausted to a stack. To control the exhaust temperature of the afterburner to the heat exchanger, a bypass conduit from the afterburner flows exhaust gases through a water seal valve bypassing the heat exchanger. The level of water in the valve can be adjusted to modulate the flow of hot clean exhaust gases from the afterburner bypassing the heat exchanger, thereby to control the temperature at the inlet of the heat exchanger.

REFERENCES:
patent: 1079849 (1913-11-01), Ernst
patent: 1261106 (1918-04-01), Crisfield
patent: 3901643 (1975-08-01), Reed et al.
patent: 4229157 (1980-10-01), Ito et al.
patent: 4605423 (1986-08-01), Koog
patent: 4705542 (1987-11-01), Gilmer
patent: 4925389 (1990-05-01), DeCicco et al.
patent: 5164158 (1992-11-01), Brashears et al.

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