试验室开展煤粉燃烧和有关风粉两相流等项试验研究工作中.粉体给料器供粉的连续性,均匀性对试验结果的精度影响很大,其出力范围在很大程度上影响到试验装置的规模。由于粉体的内摩擦力、凝聚力等力学特性较为复杂,如果只将工业上常见的粉体给料机微缩,很难收到好的效果,因此,开(?)新微量粉体给料器是十分必要的。 Laboratory carried out pulverized coal combustion and related wind powder two-phase flow of the pilot research work. Powder feeder for powder continuity, uniformity of the test results have a great impact on the accuracy of its output to a large extent Affect the size of the test device. As the mechanical properties of the powder such as internal friction, cohesion and other more complex, if only the industry common powder feeder miniaturization, it is difficult to receive good results, therefore, open (?) New trace powder feeder Is very necessary.