For the incineration of fuel fed in dense flow conveying suitable pulverized coal burner

摘要

Pulverized coal burners (1) with a fuel feed tube (7) and a with the formation of a ring gap of the cone-shaped fuel feed channel transversely cut or fuel delivery space (13) arranged concentrically in the primary air tube (9), wherein the primary air tube (9) on the inside by the formation of a burner for strength mixing cross section or mixing space (10) at a distance from the burner outlet for strength mouth end of the fuel feed tube (7) ends and on the inside at the combustion chamber opening for strength end of the fuel feed tube (7) has a radially inwardly extending, teeth having a stabilizing ring (14) is arranged, characterized in that the radial gap height of the fuel feed transversely cut or fuel delivery space (13) which determines the height of the radial distance between the outer side of the primary air tube (9) and the inner side of the fuel feed tube (7) is roughly as large as the length, with which the teeth of the stabilization ring (14) radially inwardly in the direction of the longitudinal axis of the burner (3) extend.