Precoating for improving the cleaning of filter media clogged with metallic nanoparticles

Filtration of dust nanoparticles emitted from metallurgical processes is currently problematic, due to a rapid increase the pressure drop and an inefficient filter cleaning, inducing high maintenance costs. This paper investigates use precoating technique overcome cleaning difficulties caused by metallic nanoparticles. It consists protecting surface with layer composed micron-sized particles that easily discharged upon cleaning. In this study, pulse-jet flat filters without evaluated. The aim determine effect operating conditions on efficiency provide guidelines application precoating. Different materials are tested, whether material choice influence. Experimental results highlighted collection holding capacity using was significantly improved 10 % 90 Clogging/unclogging cycles showed allowed stabilizing filtration process.