Development of new technique for continuous molten steel temperature measurement

被引:0
|
作者
Sugiura, Masato [1 ]
Yamazaki, Tsuyoshi [2 ]
Nakao, Ryuji [3 ]
Tanaka, Tomoaki [4 ]
Nagata, Seiji [1 ]
Kumazawa, Hiroyuki [5 ]
Tsubota, Eiji [5 ]
Nagai, Wataru [5 ]
机构
[1] Environment and Process Technology Center
[2] Hirohata R and D Lab
[3] Hikari R and D Lab
[4] Hikari Works
[5] Hirohata Works
来源
关键词
Costs - Furnaces - Industrial plants - Middleware - Nozzles - Radiation - Steel - Technology transfer - Thermocouples;
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摘要
In the production of steel in a smelting furnace such as a converter, to measure molten steel temperature is extremely important to both process control and metallurgical quality. Generally, sublance method is only utilized for direct measurement of the steel temperature. A disposable thermocouple probe attached at the tip of the sublance is intermittently inserted the steel. Nippon Steel developed a new continuous temperature measurement technique using 2-dimensional radiation thermometry. The molten steel is observed through a tuyere nozzle at the bottom of the furnace. Experiments were carried out on a laboratory steel bath, a stainless steel converter AOD and a scrap melting furnace. Efficiency of this continuous thermometry was clarified.
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页码:23 / 27
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