Building provided with a hood for drawing fumes produced in metallurgical environment

Abstract

A building is provided with a hood for drawing fumes produced in a metallurgical environment, comprising: a main hood body defining a hood conduit having a decreasing cross-section between an inlet and an outlet openings for the fumes coming from the metallurgical environment; a header for collecting fumes coming from the outlet opening of the main hood body; one or more pipes for conveying fumes outside said header. Portions of said main hood body form walls of said one or more pipes.

1 . Building suitable to house a metallurgical environment, comprising a hood for drawing fumes produced in said metallurgical environment, said hood comprising:
 a main hood body defining a hood conduit, said main hood body having an arrangement of a converging conduit between an inlet and an outlet openings for the fumes coming from the metallurgical environment, wherein said outlet opening lies over said inlet opening;   a header for collecting fumes coming from the outlet opening of the main hood body comprising a header chamber;   one or more pipes for conveying fumes outside said header,   wherein said main hood body forms a covering of said building,   characterised in that one or more portions of said main hood body forming said converging conduit form a wall of said one or more pipes, respectively, wherein said pipes laterally extend from the header chamber.   
     
     
         2 . Building according to  claim 1 , wherein said portions of the main hood body form common to said hood conduit and to said one or more pipes. 
     
     
         3 . Building according to  claim 1 , wherein said main hood body comprises a two or more walled wall structure, wherein first walls of said two or more walls wall structure delimit said hood conduit, and wherein second walls of said two or more walls wall structure or portions thereof delimit said walls of the one or more pipes. 
     
     
         4 . Building according to  claim 1 , wherein said portions of the main hood body form lower walls of said one or more pipes. 
     
     
         5 . Building according to  claim 1 , wherein said one or more pipes are laterally delimited by a first and second side panels. 
     
     
         6 . Building according to  claim 1 , wherein said header chamber is closed at the top by a closing panel. 
     
     
         7 . Building according to  claim 5 , wherein said one or more pipes are delimited at the top by a closing upper panel opposed to said main hood body portions, said upper closing panel being connected to said side panels or being integrally made with them. 
     
     
         8 . Building according to  claim 5 , wherein said side panels are shaped so that to close at the top said pipes. 
     
     
         9 . Building according to  claim 1 , comprising an auxiliary cover overlapping the main hood body, delimiting with the latter a gap in which said one or more pipes are at least partially received. 
     
     
         10 . Building according to  claim 9 , wherein portions of the auxiliary cover opposed to said main hood body portions form upper walls of said one or more pipes. 
     
     
         11 . Building according to  claim 9 , wherein said header chamber is closed at the top by said auxiliary cover. 
     
     
         12 . Building according to  claim 1 , wherein the header chamber has an outline following the outline of the outlet opening of the main hood body. 
     
     
         13 . Building according to  claim 1 , wherein the header chamber comprises an inlet opening which coincides with the outlet opening of the main hood body and one or more fixed or adjustable flow deflectors adapted to convey the fumes from the main hood body along desired paths. 
     
     
         14 . Building according to  claim 1 , wherein said header comprises partitions for partitioning the header chamber in sectors. 
     
     
         15 . Building according to  claim 1 , wherein said pipes internally comprise hooks adapted to at least partially hold fumes dusts.