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Title:
METHOD FOR PREVENTING GENERATION OF DUST AT TAP HOLE OF BLAST FURNACE
Document Type and Number:
Japanese Patent JPS62177110
Kind Code:
A
Abstract:

PURPOSE: To eliminate the need to set the capacity of a dust collector at an excessive value and to reduce the cost of equipment when the tap hole of a blast furnace is opened in an early stage, by measuring a change in the temp. of the tap hole with a sensor and controlling the volume of air for dust collection according to the measured value.

CONSTITUTION: A change in the temp. of the tap hole 2 of a blast furnace is measured with a temp. sensor T fitted to the tip of a metallic bar 4 and the measured value is recorded on a temp. recorder 8. At the same time, the volume of air sucked by a dust collector 5 behind an exhaust fan 6 is automatically controlled according to the temp. change and the volume of air for dust collection at the tap hole 2 is increased to prevent the generation of dust. In order to cope with an abnormal state of the tap hole 2, the clogging of the tap hole 2 with a mud gun 3 is prepd. according to the value on the recorder 8.


Inventors:
DOI SATOSHI
KOSHI HIDEYUKI
SAITO NORIO
Application Number:
JP1691486A
Publication Date:
August 04, 1987
Filing Date:
January 30, 1986
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
C21B7/22; (IPC1-7): C21B7/22



 
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