Recently, CIEE, a subsidiary of CIE, has signed general contracting projects for ultra-low sintering flue gas emission with Hebei Xinda Iron & Steel Group Co., Ltd. and Hebei Rongxin Iron and Steel Co., Ltd. under Hebei Xinda Group, respectively. With rich experience in operation and maintenance, it has also undertaken the operation and maintenance services after the completion of the Sintering Flue Gas Ultra-Low Emission Project of Hebei Rongxin Iron and Steel Co., Ltd., further expanding the future development space in the field of operation and maintenance of flue gas treatment.

In the field of atmospheric pollution treatment, CIE has built dozens of sintering (pelletizing) activated carbon flue gas purification units by virtue of advanced synergistic treatment technology for multi-pollutants of activated carbon flue gas. These activated carbon units cover a wide range. From the supporting 180m2 sintering machine to 600m2 sintering machine, from state-owned enterprises to private enterprises, from south to north, and from low sulfur working conditions to high sulfur working conditions, all the units operate stably, and the emission index meets the national ultra-low emission standards, which has made positive contributions to promoting the green development of steel enterprises.

To meet the ultra-low emission standards of the steel industry in Tangshan, the combined process of activated carbon + bag filter dust removal + SCR denitration will be adopted for the first time in the two ultra-low flue gas emission projects of Hebei Xinda Iron & Steel Group Co., Ltd. and Hebei Rongxin Iron and Steel Co., Ltd. It is estimated that after the completion of the project, the sulfur dioxide emission concentration will be lower than 20 mg/Nm3, the dust emission concentration will be lower than 5 mg/Nm3, and the nitrogen oxide emission concentration will be lower than 30 mg/Nm3, which are far lower than the national ultra-low emission standards.