Soundproof fume discharge conduit
AssigneeDanieli & C. Officine Meccaniche SpA
InventorMarco Peter Cudicio
Life of this patent
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Abstract
A soundproof fume discharge conduit adapted to be arranged between a ventilation system and an outlet chimney, the conduit defining a fume path therein, wherein at least one side surface of the conduit is provided with at least two protrusions, each protrusion internally defining a respective step-shaped recess, whereby the path is provided with at least two step-shaped recesses adapted to reflect sound waves propagating along the path, and wherein the step shape of each recess is defined by two first walls, which are incident at a first end thereof, and at least one wall of the two first walls is coated with a first sound absorbing material.
Claims19
A steel plant comprising a fume outlet chimney, said outlet chimney being connected to at least one soundproof fume discharge conduit, said conduit being arranged between a ventilation system and said outlet chimney and defining a fume path therein,
- wherein at least one side surface of the conduit is provided with at least two protrusions, each protrusion internally defining a respective step-shaped recess, whereby the path is provided with at least two step-shaped recesses adapted to reflect sound waves propagating along the path,
- wherein the step shape of each recess is defined by two first walls, which are incident at a first end thereof, and at least one wall of the two first walls is coated with a first sound absorbing material.
A fume outlet chimney of a steel plant, said chimney being connected to at least one fume discharge conduit arranged between a ventilation system and said outlet chimney and defining a fume path therein,
- wherein at least one side surface of the conduit is provided with at least two protrusions, each protrusions internally defining a responsive step-shaped recess, whereby the path is provided with at least two-step recesses adapted to reflect sound waves propagating along the path,
- wherein the step shape of each recess is defined by two first walls, which are incident at a first end thereof, and at one wall of the two first walls is coated with a first sound absorbing material.
Dependencies are inferred from the claim text.