Posted on 23 Dec 2020
Hyundai Steel announced on Dec. 22 that it has developed the world's first technology to block air pollutants from a blast furnace. The steelmaker has successfully applied the technology to its production processes, opening up the possibility of solving the problem of environmental pollution in the steelmaking process.
Hyundai Steel said on Dec. 22 that it has succeeded in cleaning up and discharging harmful gases inside a shaft furnace using a gas cleaning valve. It improved the opacity of emissions by successfully operating the gas-cleaning valve in the process of sending back the heated air into the furnace after a regular repair.
Previously, Hyundai Steel succeeded in reducing air pollutants from Shaft Furnaces 1 and 2 through gas cleaning valves in November. On Dec. 10, an official of the Ministry of Environment visited the Dangjin Steel Mill to directly check the operation and effects of the gas cleaning valves when the heated air is sent back into Furnace 3.
Hyundai Steel developed the gas cleaning valve after more than three months of collaboration with a European engineering company following the controversy over air pollution brought up in March 2019. Later the company named the valve “the first safety valve" and applied for the registration of its patent in Europe.
Source:Business Korea
