公开(公告)号：US4761793A

公开(公告)日：1988-08-02

申请号：US47811

申请日：1987-05-08

申请人： Shyam V. Digne ,  Charles B. Wolf

发明人： Shyam V. Digne ,  Charles B. Wolf

IPC分类号： H05H1/34 ,  B05B7/22 ,  C21B5/00 ,  C21B7/00 ,  C21B13/12 ,  C23C4/00 ,  C23C4/12 ,  F27D1/16 ,  H05H1/42 ,  H05H1/26

CPC分类号： C21B5/002 ,  B05B7/226 ,  C21B13/125

摘要： A plasma feed nozzle 3 for a furnace 1 which has a tubular mixing chamber 7 open at one end to the furnace, a plasma torch 13 which provides superheated gases axially to the central portion of the mixing chamber 7, shroud gases which enter the end of the mixing chamber opposite the end open to the furnace in such a way as to swirl as it moves axially through the mixing chamber 7 to provide a temperature profile which is substantially hotter in the central portion of the mixing chamber 7 than adjacent the wall portion thereof and a particulate feed nozzle 25 disposed to direct particulate material to the central portion of the mixing chamber.

摘要翻译： 用于炉1的等离子体进料喷嘴3，其具有一端在炉上开口的管状混合室7，等离子体焰炬13，其向混合室7的中心部分轴向提供过热气体， 该混合室与通向炉子的端部相对的方式相反，以便当它们轴向移动通过混合室7时旋转，以提供在混合室7的中心部分相比其邻近其壁部分基本上较热的温度分布 以及设置成将颗粒材料引导到混合室的中心部分的颗粒进料喷嘴25。