GAS SUBSTITUTION DEVICE OF BLAST FURNACE EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a gas substitution device of blast furnace equipment capable of obtaining a gas substitution operation in a shorter time.SOLUTION: There is provided a gas substitution device 100 of blast furnace equipment having: a blast furnace body 1; a dry type dust collector 16 connected via the blast furnace body 1, an ascension tube 11 and a downtake 12; and a wet type gas cleaner 17 connected to the downstream side of the dry type dust collector 16. The gas substitution device has: a furnace top bleeder valve 15 for opening/closing the opening part provided at the upper part of the ascension tube 11; and an ejector 30 for radiating an inner-furnace gas from the opening part.SELECTED DRAWING: Figure 1