초록 ▼

A burner design for use especially with rotary dryers is provided, in which a primary firing tube is provided with an oil body disposed proximate the burner tip portion of the firing tube, the oil body being constructed to divide an airflow into an outer portion flowing through an outer airstream pa

A burner design for use especially with rotary dryers is provided, in which a primary firing tube is provided with an oil body disposed proximate the burner tip portion of the firing tube, the oil body being constructed to divide an airflow into an outer portion flowing through an outer airstream passageway and an inner portion flowing through an inner airstream passageway, and to cause said inner and outer portions to intersect each other proximate the burner tip portion. The oil body is further provided with a slit opening on an inner surface thereof along a boundary of the inner airstream passageway, the slit opening being in fluid communication with a supply of fuel oil, whereby fuel oil can be delivered at low pressure at an inner surface of the oil body, whereupon the inner airstream portion will cause the fuel oil to film along the inner surface of the oil body and to be intersected by the inner and outer airstream portions to atomize the fuel oil at the burner tip. A secondary air body surrounds one or more primary firing tubes and provides air to the firing tubes for a fuel/air premix, and provides swirling air surrounding the primary firing tube at the burner tip portion.

대표청구항 ▼

[ What is claimed is:] [1.] A burner apparatus comprising:a primary firing body having a primary firing tube with a passage extending therethrough and terminating at a burner tip portion;an oil body positioned within said primary firing tube proximate said burner tip portion, said oil body having an

[ What is claimed is:] [1.] A burner apparatus comprising:a primary firing body having a primary firing tube with a passage extending therethrough and terminating at a burner tip portion;an oil body positioned within said primary firing tube proximate said burner tip portion, said oil body having an axial extent, said oil body having an outer surface spaced apart from an inner surface of said primary firing tube, thereby defining an outer airstream passageway between said oil body outer surface and said firing tube inner surface;said oil body further having a passageway extending through said oil body along said axial extent thereof, thereby defining an inner airstream passageway, said oil body and said inner surface of said primary firing tube being so constructed and arranged that said outer airstream passageway and said inner airstream passageway converge to force airstreams flowing through said inner and outer passageways to intersect proximate said burner tip portion, wherein said inner airstream passageway extending through said oil body is bounded by an inner surface of said oil body and by a pintel assembly disposed proximate said burner tip portion, and wherein said oil body further comprises a slit opening that opens into said inner airstream passageway, and wherein said slit opening is further in fluid communication with a fuel supply line.