FIELD: separation of particles contained in furnace gas. SUBSTANCE: device has set of separators, that is, U-shaped, E-shaped, W-shaped, or any other deflecting member, placed upstream or downstream of furnace along furnace gas flow. U-shaped beam separators are arranged in many rows. Each separator is mounted in a spaced relation to adjacent U-shaped separator in particular row. U-shaped separators in at least one next row are placed against clearances between U-shaped separators of preceding row. Larger clearance between part of or all rows enables increasing efficiency of particles separation from furnace gas due to increase in time and distance to be covered by gas flow and to reduce speed before collision with next row of U-shaped separators. Greater distance between part of or rows arranged along furnace gas flow equals at least distance comparable with degree of concavity or depth of separate U-shaped separator. EFFECT: improved efficiency of furnace gas separation. 14 cl, 10 dwg
