Coking dust removal ash is a collective term for dry quenching dust removal ash and environmental dust re-moval ash generated by coking plants.Its carbon content reaches about 80%,which is significantly different from other types of dust removal ash such as blast furnace environmental dust removal ash and blast furnace gravity dust removal ash.When the dust is mixed with other dust with different carbon content,it will cause fluctuations in the carbon content of the sinter-ing mixture,thereby affecting the sintering process and the stability of the sintering ore quality.During the overhaul,a dust removal and ash injection device was installed in the primary drum mixer of No.3 sintering machine of Angang.Using the principle of bin pump ash transportation,coking dust removal is sprayed into the mixer through a pipeline,and fully mixed with the mixture in the mixer to achieving uniform,stable,and quantitative addition of carbon containing dust removal.In practice,a series of transformations were carried out combined with the problems in the operation to ensure the stable and efficient operation of the system.
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