In the blast furnace smelting process, the gangue, coke and ash in the blown iron ore combine with the limestone and other fluxes added to the furnace to form slag, which is discharged from the tap hole and the slag outlet respectively. The gas is exported from the top of the furnace, and after being dedusted, it is used as industrial gas. Modern blast furnaces can also use the high pressure on the top of the furnace to generate electricity with part of the derived gas.
The high temperature of blast furnace gas is corrosive to a certain extent, and the blast furnace gas bag filter generally needs a high temperature and corrosion resistant flumes dust bag.
Filmedia FMS Needle Felt Bag is a new type of high-efficiency high-efficiency filter material with reasonable structure and excellent performance. It not only has the advantages of high temperature resistance, acid and alkali corrosion resistance, dimensional stability and high strength of fiberglass woven filter material, but also 100% alkali-free fiberglass as raw material, using high-count fiberglass filament, divided into velvet and needle punched, has good heat resistance, flame retardant, anti-corrosion effect, small gas filtration resistance, and dust removal efficiency exceeds that of woven filter material , the filtration speed is about twice that of the woven filter material, and it is the first choice for purifying blast furnace gas and flue gas filtration in steel smelting and other industries.
According to different working conditions, Filmedia FMS Needle Felt can be treated with PTFE impregnation, drying, membrane, waterproofing, etc., with good use effect and high dust removal efficiency.