PRISMATIC SETTLING CHAMBER Russian patent published in 2017 - IPC F23J3/04 B01D45/00 

FIELD: power engineering.

SUBSTANCE: invention relates to power engineering and can be used in solid fuel combustion boilers, heat-recovery boilers of industrial plants for removal of ash and dust before combustion products discharge into atmosphere via chimneys. Prismatic settling chamber has vertical front, rear and side walls, horizontal roofing and bakestone dust output opening, arranged on front and rear walls with abutment to dusty and cleaned gas flows inlet and outlet opening roofing, installed with abutment to roofing and integrated into longitudinal and transverse rows with constant pitches in staggered order tetrahedral vertical dust traps, having working cavities, rear and lateral vertical walls, front vertical walls with vertical slit-like openings, horizontal bakestone dust output openings, arranged in common horizontal plane with settling chamber horizontal bakestone dust output opening, as well as vertical water heating pipes. At that, vertical water heating pipes are combined into groups with conditional transverse central planes, in each group pipes are installed in longitudinal and transverse rows, pipe groups and dust traps longitudinal rows are arranged in chamber in turns with constant pitch between groups central conditional planes s_gr, equal to dust traps longitudinal rows pitch s_dt and making s_gr=s_dt=(1.5-2.5)B, where B is width of dust traps side walls, m.

EFFECT: technical result is increasing reliability and efficiency at supply of high-temperature gases.

1 cl, 4 dwg