公开(公告)号：US5878676A

公开(公告)日：1999-03-09

申请号：US845632

申请日：1997-02-28

申请人： Matthias Jochem ,  Hans-Ulrich Thierbach

发明人： Matthias Jochem ,  Hans-Ulrich Thierbach

IPC分类号： F23C7/00 ,  F23D1/02 ,  F23K3/02 ,  F23C5/06 ,  F23L17/16 ,  F23M9/00

CPC分类号： F23C7/008 ,  F23D1/02

摘要： A burner is provided for a furnace having at least one windbox that is supplied with air for combustion and has extending therethrough at least one such burner, which opens out toward the combustion chamber. The burner has at least one primary air channel, which is supplied from the outside with a coal dust/air mixture, at least one secondary air channel, which surrounds the primary air channel, and at least one tertiary air channel, which surrounds the secondary air channel. The secondary and tertiary air channels can be supplied with air from the windbox in a regulated manner. Along a rotationally symmetrical portion of an outer surface of each of the secondary and tertiary air channels there is respectively provided at least one air inlet opening. Respective annular valve sections are rotatably disposed about one of the rotationally symmetrical portions of the secondary and tertiary air channels. These two annular valve sections each have at least one air passage opening, and are successively disposed one after the other as viewed in an axial direction of the burner.

摘要翻译： 为具有至少一个风箱的炉子提供燃烧器，所述风箱供应有用于燃烧的空气，并且具有穿过其中的至少一个这样的燃烧器，该燃烧器向燃烧室敞开。 燃烧器具有至少一个主空气通道，其从外部供应有煤尘/空气混合物，围绕主空气通道的至少一个二次空气通道以及围绕次级空气通道的至少一个三次空气通道 空中通道。 二级和三级空气通道可以以规定的方式从风箱供应空气。 沿着每个二次和三次空气通道的外表面的旋转对称部分分别设置有至少一个空气入口。 相应的环形阀部分围绕第二和第三空气通道的旋转对称部分中的一个可旋转地设置。 这两个环形阀部分各自具有至少一个空气通道开口，并且沿着燃烧器的轴向方向依次相继设置。