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US 4,331,126 AGranted
Furnace for solid fuels
AssigneeGebruder Weiss K.G.
InventorArmin Holighaus
Life of this patent
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AssigneeGebruder Weiss K.G.
InventorArmin Holighaus
Estimating the term…
A solid fuel furnace includes a combustion chamber and an elongated grate trough extending below the combustion chamber for charging the solid fuel into the chamber. A tube extends within the grate trough so that the axis of the tube is parallel to that of the trough, the tube being supported at the ends of the chamber for rotation about the tube axis. Blade members are provided on the outer circumferential surface of the tube to convey the solid fuels introduced into the furnace in the axial direction of the tube as the tube is rotated. The blade members have radially extending openings which communicate with the interior of the tube, and combustion air is supplied to the tube interior at one end of the tube so that the combustion air is introduced into the combustion chamber through the blade members as the tube rotates. Accordingly, both solid fuel and combustion air are charged into the combustion chamber at a desired rate by the rotating tube and blade members. This arrangement has an additional advantage in that the combustion air serves to cool the tube and the blade members thereon during operation of the furnace.
A furnace for solid fuels, comprising a furnace housing including a number of walls for forming a combustion chamber within said housing, means within said housing for forming an elongated grate trough which extends below said combustion chamber for charging solid fuel into said combustion chamber, blower means for providing combustion air, a tube extending within said grate trough so that the axis of said tube is parallel to the longitudinal axis of said grate trough, means for supporting said tube for rotation about its axis, blade means including a number of blade members arranged to extend radially outwardly relative to the outer circumferential surface of said tube to rotate together with said tube for conveying the solid fuel in the direction of the axis of said tube when said tube is rotated, said blade members having radially extending nozzle openings for distributing the combustion air into said combustion chamber, and air directing means arranged to communicate the combustion air from said blower means to said nozzle openings in said blade members as said tube rotates so that the fuel and the combustion air are simultaneously charged into said combustion chamber at a desired rate.
Dependencies are inferred from the claim text.