Method and apparatus for off-gas composition sensing

Details Method and apparatus for off-gas composition sensing Method and apparatus for off-gas composition sensing

1997-11-14

1999-11-16

Kastler, Scott

Specialized metallurgical processes, compositions for use therei

Processes

Process control responsive to sensed condition

266 80, 266 99, C21C 104

Patent

active

059849983

ABSTRACT:
An apparatus and method for non-intrusive collection of off-gas data in a steelmaking furnace includes structure and steps for transmitting a laser beam through the off-gas produced by a steelmaking furnace, for controlling the transmitting to repeatedly scan the laser beam through a plurality of wavelengths in its tuning range, and for detecting the laser beam transmitted through the off-gas and converting the detected laser beam to an electrical signal. The electrical signal is processed to determine characteristics of the off-gas that are used to analyze and/or control the steelmaking process.

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