POST COMBUSTOR

摘要

A post combustor (1) which allows increasing the thermal efficiency and reducing the emission of pollutants in firewood heaters or combusting equipment (19) having a combustion chamber or primary chamber (22) for burning firewood (21), thus generating combustion gases (17). Said post combustor (1) comprising: a plurality of layers (2) consisting of solid particles which generate a porous medium wherein said plurality of layers (2) of solid particles that generate said porous medium are contained in an inner container (5). The inner container (5) has at least one lower opening allowing the passage of entering gases (6) which have already been burned in the combustion chamber or primary chamber (22) and has at least one upper opening allowing the passage of exhaust gases (7) which have already been burned in the post combustor (1). The inner container (5) is surrounded by a tubular duct (10) creating an annular space (16) between the outer wall (18) of said inner container (5) and the tubular duct (10), said annular space (16) having a lower annular portion (11) for the combustion gases (17) to enter, having on the upper part of the annular space (16) a gas shut-off valve (12) which is handled by regulation means (13). On the upper portion of the annular space (16) is found a conical cap (14) to which the gas exhaust duct (15) is connected.