Third Dust Removal in Steelmaking refers to the dust removal facility installed on the roof of a steelmaking workshop to achieve ultra-low emissions and address the escaping smoke and dust from the workshop's top. The pollution sources addressed by Third Dust Removal in Steelmaking mainly include smoke and dust that escape to the roof during the smelting process of steelmaking furnaces (electric furnaces, oxygen blowing converters, etc.), which cannot be captured by primary and secondary dust removal systems; dust generated from production process nodes that were not integrated into the dust removal pipeline network due to previous environmental protection requirements and other objective conditions; and fugitive dust formed by unorganized emissions. These smoke and dust particles, lifted by the hot air in the steelmaking workshop, drift out through the louvers on the top of the workshop, causing atmospheric pollution.
Tangshan Shengshi Environmental Protection has conducted multiple site visits and studies and designed a complete and reliable Third Dust Removal in Steelmaking treatment plan.
Third Dust Removal in Steelmaking mainly involves sealing the louvers on the top and integrating them into the dust removal pipeline network, where the smoke and dust are purified by bag filters and discharged to meet standards. This step is the primary task of Third Dust Removal and is crucial for cutting off external pollution. The air temperature inside a steelmaking plant (typically including continuous casting and rolling workshops) is higher than the outdoor environment, and the overall airflow is naturally lifted. The third-stage smoke and dust rise to the louvers at the high ceiling of the workshop, escape outside, and cause atmospheric pollution. Therefore, this step is crucial.
Third Dust Removal in Steelmaking not only extracts and purifies the smoke and dust from the louvers on the top but also integrates previous dust points that were not connected to the dust removal pipeline network (such as hot repair packages, bulk material loading belt transfer stations, bulk material warehousing, alloy material warehouse access, and hot metal ladle pouring) into the dust removal pipeline network.
Third Dust Removal in Steelmaking Tangshan Shengshi Environmental Protection adopts offline pulse bag filters with an emission standard of ≤10mg/m3.
