Back to results
US 2017/0254531 A1Published application
Device for the thermal post-combustion of exhaust air
AssigneeDürr Systems AG
InventorEberhard WAHL
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeDürr Systems AG
InventorEberhard WAHL
Estimating the term…
A device for the post-combustion of exhaust air, comprises a burner, which has a fuel nozzle, and a burner cone and which protrudes in a raw-gas chamber, into an exhaust-air flow of exhaust air to be treated at least by the burner cone of the burner. The burner cone has a one- or a multi-part wall, which wall surrounds the pre-mixing chamber and has one or more wall segments. The fuel nozzle comprises an opening of at least one fuel outlet for discharging fuel into the pre-mixing chamber. The wall bounding the pre-mixing chamber outwardly on the lateral side has a structure such that the pre-mixing chamber formed in the interior of the wall opens in the downward direction in the manner of a funnel on at least one cone longitudinal segment symmetrically to an axis of symmetry defining the axial direction of the burner. The burner cone comprises, in at least one longitudinal segment of the cone longitudinal segment of the wall, which cone longitudinal segment opens in the manner of a funnel, a plurality of tangential inlet openings in order for exhaust air surrounding the burner cone to enter the pre-mixing chamber tangentially.
1-27. (canceled)
A device, comprising an industrial system (12) and a post-combustion device (01), provided in an exhaust air stream (02) of the industrial system (12) for the post-combustion of exhaust air in the exhaust air stream (02), said device being separate from the industrial system (12) and disposed downstream of said system, wherein the post-combustion device (01) comprises a burner (04), which has a fuel nozzle (07) and a burner cone (06), and which protrudes, at least with its burner cone (06), in a raw gas chamber (09) into exhaust air of the exhaust air stream (02) to be treated that is coming from the system (12) upstream, wherein the burner cone (06) has a single-part or multi-part wall (43) that surrounds a premix chamber (42), and the fuel nozzle (07) comprises an opening of at least one fuel outlet (44) for discharging fuel into the premix chamber (42), and wherein the wall (43) that bounds the premix chamber (42) outwardly on the lateral side has a structure such that the premix chamber (42) formed inside the wall opens up in the downstream direction in the manner of a funnel on at least one longitudinal cone segment, symmetrically to an axis of symmetry (S) that defines the axial direction of the burner (04), characterized in that the burner cone (06) comprises, in at least one longitudinal segment of the longitudinal cone segment of the wall (43), which longitudinal cone segment opens up in the manner of a funnel, a plurality of tangential inlet openings (54) in order for exhaust air surrounding the burner cone (06) to enter the premix chamber (42) tangentially, said inlet openings being formed by a fan-like arrangement of a plurality of wall segments (43.1;
Dependencies are inferred from the claim text.