Abstract
To design a high efficiency duct leading the gas-solid mixed flow to a dust collector, it is necessary to have a uniform flow in the divergent section of the duct.
This paper presents the results of a study on the method to uniform the gas-solid flow through a two-dimensional divergent horizontal duct.
First, the requisite conditions for the uniform gas-solid flow are shown from the viewpoint of fluid dynmics.
Secondly, this shows the experimental results concerned with the distributions of the velocity of the gas-solid flow and the dust in a duct made of transparent acryl plates which is 500mm wide, 50mm in depth and 1000mm in length. Calcium powder was used as the fine dust in the experiment.
This finally shows the optimal design of the guide vane which gives the uniform distribution of the gas-solid flow in the divergent duct.
