Physico-chemical analysis of emissions in gas cutting

The physico-chemical properties of the components of emissions when gas cutting secondary metals were analysed. The level of emission, the component composition of the gases, and the chemical and dispersion composition of the dust were determined. The results show the presence of extremely highly dispersed aerosol particles with a size of 0.01-0.1 mu m (d sub m =0.05 mu m) as the composition of the dust, containing oxides of the main components of the cut material. Data were obtained for developing the equipment for cleaning the air when processing secondary metals by gas cutting. Materials: St3, B26, B22, B33, B3 and ship plate.