Patent ID: 8871501

Claim:
A rotating drum having a large size precluding non-installation-site assembly to an assembled generally cylindrical form and transportation in said assembled generally cylindrical form to an installation site comprising: (a) a plurality of panels, each panel including a frame and a spanning skin, said frame having a first frame end, a second frame end, a first frame side, and a second frame side, each of said first and second frame ends having a plurality of holes, sized to receive non-hot-welded connectors, each of said panels having a shop-applied coating thereon prior to assembly of said panels; (b) a plurality of non-hot-welded connectors disposed in said holes in said first and second frames ends, to connect said first and second frame ends, at an installation site; (c) a sub-cylinder formed from at least two of said plurality of panels, for each panel at least one non-hot-welded connector connected at the non-shop installation site connecting said first frame end of said frame to said second frame end of an adjacent frame, the first frame ends of said at least two of said plurality of panels in said sub-cylinder forming a first sub-cylinder annular side, and the second frame ends of said at least two of said plurality of panels in said sub-cylinder forming a second sub-cylinder annular side; (d) a drum cylinder finder formed from at least two of said sub-cylinders, a plurality of said hot non-welded connectors being used to connect a first sub-cylinder annular side of a first sub-cylinder to a second sub-cylinder annular side of a second sub-cylinder, said drum cylinder having a first cylinder end with a first annular cylinder edge and a second cylinder end with a second annular cylinder edge; (e) a first drum head, said first drum head connectable to said first annular cylinder edge; (f) a second drum head, said second drum head connectable to said second annular cylinder edge; and (g) a rotatable driver to rotate said rotating drum; wherein said first and second frame ends include outwardly protruding legs; and wherein said plurality of non-hot-welded connectors disposed in said holes in said first and second frame ends extend through said outwardly protruding legs such that said non-hot welded connectors are fully outside of the interior of said drum.