According to the production and application of V3-positve transportation system of steam dryer in Guixi Smelter, some problems of applying are analyzed; the reason and innovation are also discussed.

• 结合贵冶蒸汽干燥系统V3正压输送在生产中出现的问题,分析了故障的原因并作了相应的改造,使得V3正压输送系统运行正常,降低了其运行的故障率,确保了高的闪速炉满负荷作业率。