Anticorrosive dust-collecting energy-saving chimney

Abstract

An anticorrosive dust-collecting energy-saving chimney includes a chimney barrel. A hearth spiral line with a helix angle of 10˜80 degrees is arranged on an internal wall of the chimney barrel, and an outlet of an arc flue is arranged at an outside of a bottom of the chimney barrel and in communication with the hearth spiral line. A direction of spiral of the arc flue is the same as a direction of spiral of the hearth spiral line, and the arc flue is smoothly connected to the hearth spiral line.

1 . An anticorrosive dust-collecting energy-saving chimney, comprising a chimney barrel, wherein a hearth spiral line is arranged on an internal wall of said chimney barrel, and an outlet of an arc flue is arranged at an outside of a bottom of said chimney barrel and in communication with said hearth spiral line, a direction of spiral of said arc flue is the same as a direction of spiral of said hearth spiral line, and said arc flue is smoothly connected to said hearth spiral line. 
     
     
         2 . The anticorrosive dust-collecting energy-saving chimney, as recited in  claim 1 , wherein the number of said hearth spiral line is from 1 to 30. 
     
     
         3 . The anticorrosive dust-collecting energy-saving chimney, as recited in  claim 1 , wherein a pitch of said hearth spiral line is from 0.5 to 20 meters. 
     
     
         4 . (canceled) 
     
     
         5 . The anticorrosive dust-collecting energy-saving chimney as recited in  claim 1 , wherein said hearth spiral line has a helix angle of 10˜80 degrees. 
     
     
         6 . The anticorrosive dust-collecting energy-saving chimney as recited in  claim 2 , wherein said hearth spiral line has a helix angle of 10˜80 degrees. 
     
     
         7 . The anticorrosive dust-collecting energy-saving chimney as recited in  claim 3 , wherein said hearth spiral line has a helix angle of 10˜80 degrees.