BLAST FURNACE GAS TREATMENT SYSTEM AND BLAST FURNACE GAS TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a blast furnace gas treatment system and a blast furnace gas treatment method that can economically and efficiently remove a component of ammonium chloride included in blast furnace gas and also maximize the power in a top pressure recovery turbine.

SOLUTION: The blast furnace gas treatment system 1 includes: a blast furnace 2; a dust extractor 3 into which blast furnace gas discharged from the blast furnace 2 is introduced; a wet type dust collector 4; a dry type dust collector 5; an adsorption equipment 6 into which the blast furnace gas that passed through the dry type dust collector 5 is introduced; a top pressure recovery turbine 7 which generates power when the blast furnace gas after dust collection is introduced; the adsorption equipment 6 comprising an adsorption chamber 61 and an adsorbent 62 stored in the adsorption chamber 61; a concentration estimation means which estimates concentration of ammonium chloride included in the blast furnace gas; a steam delivery means 64 which delivers steam into the adsorption chamber 61; a memory means; and a blast furnace gas yield detection means which detects the yield of the blast furnace gas.

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