Bai Yugang ¹‚LüJunfu ¹‚Yue Guangxi ^1‚Liu Qing ¹‚Yang Yanping ²‚Ma Minghua ²‚Y u Long ²

（1∙Department of Thermal Engineering‚Tsinghua University Beijing100084；2∙Harbin Boiler Co．Ltd∙Heilongjiang Harbin‚150040China）

Abstract

Square cyclone fulfills well the scaling up compact design of circulating fluidized bed boiler for its outstanding performance∙T he investigation of the changing laws of performanc of the separator with the changing of taper is carried out at ambient temperature in a test rig with separator cross section 700mm×700mm∙And the effect of taper on collection efficiency and resistant are determined in the investigation∙T he results show that the bigger taper is favor for the cut size without any increasing of critical size or resistant∙

Keywords：circulating fluidized bed；separator；taper

DOI：10.13732/j.issn.1008-5548.1999.05.001