Air/Fuel, Flue & Stack Gas Monitoring, and Argon, Nitrogen in Smelters and Furnaces

There are three applications for thermal mass flow meters that support the use of industrial furnaces and smelters in metal production; including air/fuel, flue and stack gas monitoring, and argon, nitrogen, and oxygen measurement.

    1. Furnaces – air and fuel, flue and stack gas monitoring
    2. Argon and nitrogen for tank blanketing and stirring
    3. Air/fuel ratio control on furnace

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Common Thermal Mass Flow Meter Applications
In the 1990s thermal mass flow meters were introduced to measure the flow of emissions at multiple points within large emissions stacks.

Air / Fuel / Flue / Stack Gas Monitoring

Furnaces are used in a wide variety of industries and facilities including metals. When using an industrial furnace in a manufacturing process, air/fuel monitoring, flue, and stack gas monitoring are often needed and satisfied with thermal mass flow meters.

Measure Gas Flows

Different gases are used in the production of metal, including natural gas, oxygen, chlorine, argon, and nitrogen. A minimum gas flow is needed in these processes often, and thermal mass flow meters often work well in these applications. Additionally, lower gas usage can affect product quality, and thermal mass flow meters measure gas flows to ensure optimum amount of utilized gas.

Argon & Nitrogen for Blanketing and Stirring

Argon and Nitrogen gas are used as a blanketing gas in many production applications of various metals. Thermal mass flow meters measure the flow rate of gases to the different blanketing application to ensure adequate coverage.

Argon and Nitrogen are also used for bottom stirring in metal products, and pressure monitoring of these gases is needed to obtain the proper mix for optimum steel quality.

Air/Fuel Ratio Control on Furnace

Stoichiometric ratio control on furnaces  in the smelting process of metals is critical to product quality. Sage meters in conjunction with oxygen monitoring provide optimal control in furnace air/fuel ratio control loops.

If you would like more information, see Steel – An Industry Guide for Thermal Mass Flow Meters.

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