PURPOSE: To provide the title instrument, by which furnace condition can be observed in a clear picture by automatically exchanging a filter in a video camera based on furnace temp. in a blast furnace.
CONSTITUTION: The observing instrument for inner part of the blast furnace is the one, which a sub-lance made possible to insert into/pull out from an inner pipe in a main lance, forming outer periphery of an inner pipe to multi- pipe structure and cooling by passing cooling water are fitted on a carriage, and a fiber 50 for measuring temp. and an image fiber 52, are fitted inside the sub-lance in the observing instrument for furnace condition in the blast furnace made possible to reciprocate with a drawing chain in this carriage. The fiber 50 for measuring is connected with radiation thermometer 42, and the image fiber 52 is connected with the video camera 41 and the filter in the video camera 41 is automatically exchanged based on the measured temp. with the radiation thermometer 42. In the shifting observation for the main lance, the clear picture in the furnace is obtd.
SUMIKAMA TAKASHI
UCHI REIZO
KITAMURA YUJI
MIMURO MICHIHIRO
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