Open AccessStudy on Separation Efficiency of Cyclone Separator for 75t/h Circulating Fluidized Bed Boiler
Author(s) -
Hai Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/721/1/012037
Subject(s) - cyclonic separation , separator (oil production) , boiler (water heating) , mechanics , particle size , fluidized bed combustion , materials science , nuclear engineering , environmental science , waste management , fluidized bed , inlet , engineering , mechanical engineering , physics , thermodynamics , chemical engineering
Taking a 75t/h circulating fluidized bed boiler cyclone separator in a boiler manufacturing plant as the research object, this study uses FLUENT fluid calculation software and the balanced orbit and dwell time model to analyze the influence of the particle trajectory tracking, exhausting pipe length and pipe diameter on the separation efficiency The calculation results show that when the relative diameter is equal to 0.3∼0.5, the separation efficiency is already high. If the diameter of the core tube is reduced, the separation efficiency is not improved much. However, this will lead to a sharp increase in pressure loss; The increase of the powder concentration is markedly increased; the larger the particle size is, the higher the separation efficiency is. The separation efficiency is obviously improved after the particle size is larger than 30 μm. The separation efficiency is already high after the particle size is larger than 80 μm, and the increase of the particle size is not significant.