The purpose is to study the dimensionless ratio of overflow opening area to underflow opening area,A*,and the dimensionless ratio of air flowrate to slurry flowrate, Q*.

• 具体研究浮选器中涡流定向器出口面积与下部环状开口面积之比A＊，以及空气流量与煤浆流量之比Q＊和各浮选参数之间的关系。