Flare stack gas burner

Claim 1

A flare stack gas burner for combustible waste gas comprising a vertical stack pipe having a free upper end for combustion therebeyond, means for delivering primary air under pressure to the interior of the stack pipe for delivery to said upper end, a waste gas delivery pipe connected to a supply of waste combustible gas under pressure interiorly vertically centrally disposed in said stack pipe, said waste gas delivery pipe in spaced relation below said upper end of said stack pipe having a plurality of outwardly extending arms with spaces between said arms for upward movement of air, said arms having elongated discharge slot portions facing toward said upper end of said stack pipe for waste gas discharge therethrough and extending substantially the distance between said waste gas pipe and said stack pipe, and a fixedly mounted diffuser disposed at the upper end of said stack pipe, said diffuser being adjacent to and in vertically spaced relation to said arms to provide a pre-combustion waste gas and air mixing space therebetween, said diffuser comprising a central hub with a plurality of radially disposed titled vanes extending therefrom imparting a vortex pattern to the air and waste gas passing through said diffuser for turbulent burning therebeyond in a vortex pattern.