Direct Temperature Measurement of Melts in Continuous Copper Converter with Expendable Immersion Optical Fiber Thermometer

Ogino, Fumihiko; Nishimura, Keisuke; Okabe, Susumu; Kimura, Etsuji

doi:10.2320/matertrans1989.37.912

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Converting Furnace Melt1

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1998

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“…The optical quartz fiber of 125 µm diameter is sheathed in a stainless steel tube of 1.2 mm outer diameter, as shown in Figure 6b. 10 Excess optical fiber is wound around the drum. One end is immersed in the melt, and the other end is connected to a pyrometer installed inside the drum.…”

Section: Converting Furnace Meltmentioning

confidence: 99%

Control aspects of the mitsubishi continuous process

Goto

Oshima²,

Hayashi³

1998

JOM

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The Mitsubishi process for the continuous smelting and converting of copper holds many advantages over conventional processes, where reactions must be conducted in numerous steps and melts must be tapped frequently from the furnaces. The furnaces operate like steady-state reactors with constant melt volume, composition, and temperature. Therefore, optimal control of the process is straightforward, with one operator controlling smelting and converting simultaneously. Recent improvements in temperature control by using newly developed sensors have extended furnace campaign life, and enhanced control over melt compositions has helped further stabilize operations. Applications of the environmentally clean smelting technology are increasing internationally.

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Section: Converting Furnace Meltmentioning

confidence: 99%