The dust of oxygen open hearth, featuring small grain size and poor water permeability, is liable to float in air, So it will cause after environment pollution in its loading、 unloading、 transpotation and storage.

Process for Production of Ultra-Low Sulphur Steel by BOF Tapping Desulphurizing-LF Refining;

So the hot gas filtration system can be used in the oxygen blast furnace process.

The test results showed that the reduction in the shaft of oxygen blast furnace is improved obviously and the metallization ratios of sinter, pellets and ore are above 70 %, 80 % and 90 % respectively.

Comparison about air-blown gasifier and oxygen-blown gasifier based on IGCC systems;