| 摘要 |
A lance (400) for powder injection resulting in reduced agglomeration, including an outer tubular member (408) having a first end (412), a second end (404), and an inner flowpath extending from the first end to the second end; an inner tubular member (408) having a first end (412), a second end (404), and an inner flowpath (416) extending from the first end to the second end, the inner tubular member disposed within the inner flowpath of the outer tubular member for providing an annular space (410) between the outer tubular member and the inner tubular member; and one or more orifices (418) in the inner tubular member for providing a flowpath between the annular space and the inner flowpath of the inner tubular member. Additional lances, nozzles, systems, and methods are also included. |
