Burner for powdered fuel
AssigneeSociete Colmant Cuvelier
InventorMichel G. Bonnel
Life of this patent
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Abstract
The invention comprehends a burner for powdered fuel comprising an annular conduit for the injection of solid fuel in powder form, included between two coaxial conduits for the injection of air, one internal and the other external in which the three conduits discharge into an expansion and stabilization chamber which is formed by a divergent truncated portion connected to the external air injection conduit and which also has a central cylindrical portion and a terminal convergent truncated portion.
Claims22
A burner for powdered fuel comprising an annular conduit for the injection of solid fuel in powder from entrained in air, a first conduit coaxial with and internal to said annular conduit and a second conduit coaxial with and external to said annular conduit, each of said first and second conduits having air supplied thereto, means forming a chamber, each of said three conduits having an end for discharging the flow therefrom into said chamber where the flows are mixed, means at the discharge end of said annular conduit for producing a substantially laminar or somewhat convergent flow of the fuel into said chamber, and means at the respective discharge ends of each of said first and second conduits for producing a vortex flow of air into said chamber.
A burner for powdered fuel comprising an annular conduit for the injection of solid fuel in powder form entrained in an air stream, a first conduit coaxial with and internal to said annular conduit and a second conduit coaxial with and external to said annular conduit, each of said first and second conduits having air supplied thereto, means forming a chamber, each of said three conduits having an end for discharging the flow therefrom into said chamber, said means forming said chamber including a divergent truncated portion connected to the end of said second conduit, a central cylindrical portion and a terminal converging portion, said end of said annular conduit being convergent, and located between the ends of said first and said second conduits.
Dependencies are inferred from the claim text.