Patent ID: 8449292
Filing Date: 2013-05-28
Classification: F23D

Abstract:
1. A burner for a rotary tubular kiln with an annular channel arranged within a burner housing pipe for pneumatic transport and blowing out of fine-grained solid fuel through an annular gap nozzle, and with a number of jet air nozzles arranged concentrically around a circumference of the annular gap nozzle with nozzle openings divergent to a burner axis, through which combustion air is emitted, divided into a large number of separate, individual high-speed primary air jets, comprising: a) the jet air nozzles with nozzle openings divergent to the burner axis being attached at an end of jet air pipes, which are jet air pipes arranged with their individual axes parallel to and spaced from the burner axis, b) the jet air pipes being arranged within an annular cooling air channel surrounding the solid fuel annular channel enclosed to an outside by the burner housing pipe, and being mounted at rotating mounting points so that each of the jet air pipes is rotatable around their individual jet air pipe axes while remaining parallel to the burner axis, c) the rotating mounting points of the jet air pipes being held in two spaced flange rings of the burner housing pipe, and d) a device for rotary adjustment of the jet air pipes being arranged outside the burner housing pipe at a cold end of the burner lance.