In order to optimize the production of blast furnace system and strengthen the technological transformation of energy-saving and environmental protection processes, since October 2019, the Maanshan Iron and Steel Plant has made a careful plan to penetrate the standards of the "energy-saving and environmental protection, green development" strategy into all aspects of enterprise development, and promote No. A blast furnace Major revisions to the construction of key energy-saving and environmental protection projects such as No. 3 sintering machine flue gas denitration and ultra-low emissions, to promote the high-quality development of blast furnace system production.

In implementing the strategy of “Energy Conservation, Environmental Protection and Green Development”, the main plant adopted “two-handed, two-handed” measures: on the one hand, optimizing the production of the blast furnace system and strengthening the energy-saving and environmental-protection process and technological transformation; Construction, to implement the "energy-saving and environmental protection, green development" strategy in an all-round and effective manner, to avoid problems of imbalance, incompleteness and incompleteness.

Since the beginning of this year, the main plant has more than 50 energy-saving retrofit projects in terms of blast furnace system production technology reform. Among them, remote control renovation of hydraulic system mud guns, large-scale modification of No. 4 blast furnace TRT (blast furnace gas residual pressure turbine power generation device), sintered solid fuel consumption energy saving key, pellet bentonite energy saving key projects have been completed; No. A blast furnace and No. B blast furnace Projects such as power consumption energy saving research, A sintering machine and B sintering mechanical and electrical energy saving research, reducing energy consumption of pellet production process, pelletizing shaft furnace large material yard and small material yard dust net transformation are progressing steadily.

In terms of key projects of energy conservation and environmental protection, the main plant, organized by Maanshan Iron and Steel Co., Ltd., carefully organized and held a number of technical exchange meetings on No. A blast furnace overhaul and rebuilding with China Metallurgical Sadi Group. , Safety, up-to-standard emission technology, gas purification technology, blast furnace modular overhaul technology, etc., in-depth exchanges and communication, and use this as a template to copy and promote to the remaining 5 blast furnaces, and promote the blast furnace system Development of high quality production.

At the same time, the main plant is rapidly advancing the construction of No. 3 sintering machine's flue gas denitration and ultra-low emission key projects. Under the premise of ensuring the safety and quality of the project, it strives to shorten the construction period, significantly reduce pollutant emissions, and promote further improvement of the atmospheric environment The key projects of quality are completed early, put into operation early, and benefit early, so as to achieve a bumper harvest of environmental and social benefits.