Efficient and Economic Operation Practice of Dry Dedusting for Converter
After the dedusting mode of the converter is changed from wet dedusting to dry dedusting in Tangshan Medium and Heavy Plate Co.,Ltd.,various problems occur such as gas explosion at the furnace mouth when starting to blow oxygen,low ignition success ratio,extended tap to tap time incurred by longer half oxygen blowing operation time and reduced gas recycling rate.By taking measures including the reduction of the explosion venting rate,increase of ig-niting efficiency when starting oxygen blow,efficient and stable steelmaking operation of the converter is achieved with the converters average tap to tap time shortened by 5.41 min,the gas recycling amount increased by 7 Nm3/t,the elec-trical consumption reduced by 10 440 kJ/t.After the dedusting mode is changed,the converter's fume is purified more completely,of which the impact on the environment is effectively reduced.
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