Simulation on desulfurization of sintering flue gas indense flow absorber integrated bag-filter
SHI Yuan-liang1,2,TONG Zhen-song1,2,SONG Cun-yi1,2
1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083,China 2. Beijing Key Laboratory of Resource-oriented Treatment of??Industrial Pollutants, Beijing 100083, China
Abstract:In order to find active reaction zone of dense flow absorber and the reason that why the distal end of bag-filter was not highly used, it was urgent to study the internal flow field distuibution and the change of pressure field. In this paper, the system of a dense flow absorber integrated bag-filter was simulated with Fluent software before and after improvement. The two-equation turbulence model and discrete phase model(DPM) were used to simulate the gas phase flow and solid phase flow, respectively. Results of the simulation showed that changing the layout of outlets had much more positive effects on the homogeneous flow inside bag-filter than adding the baffle plate inside bag-filter. The empirical study also indicated that the most optimized design of the baffle plate inside the dense flow absorber was 7.5 m in length and 45 degree in angle.
史元良,童震松,宋存义,. 球团烟气密相干塔脱硫-除尘一体化系统优化[J]. 钢铁, 2015, 50(12): 72-79.
SHI Yuan-liang,,TONG Zhen-song,,SONG Cun-yi,. Simulation on desulfurization of sintering flue gas indense flow absorber integrated bag-filter. Iron and Steel, 2015, 50(12): 72-79.
B.Du,W.Warsito,L.S.Fan,ECT studies of the choking phenomenon in a gas–solid circulating fluidized bed[J],AIChE Journal,2004,50 (7):1386-1406.
[4]
B.Du,W.Warsito,L.S.Fan,ECT studies of the choking phenomenon in a gas–solid circulating fluidized bed[J],AIChE Journal,2004,50 (7):1386-1406.
[5]
Ollero P,Gutiérrez Ortiz F J,Cabanillas A,et al. Flue-Gas Desulfurization in Circulating Fluidized Beds: An Empirical Model from an Experimental Pilot-Plant Study[J].Industrial & Engineering Chemistry Research,2001,40(23):5640-5648.
[5]
Ollero P,Gutiérrez Ortiz F J,Cabanillas A,et al. Flue-Gas Desulfurization in Circulating Fluidized Beds: An Empirical Model from an Experimental Pilot-Plant Study[J].Industrial & Engineering Chemistry Research,2001,40(23):5640-5648.
J.Zhang, C.You,S.Zhao,C.Chen, H.Qi,Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization[J],Environmental Science and Technology 2008,42 (05):1705–1710.
[12]
J.Zhang, C.You,S.Zhao,C.Chen, H.Qi,Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization[J],Environmental Science and Technology 2008,42 (05):1705–1710.
[13]
B.Du,L.S.Fan,Characteristics of choking behavior in circulating fluidized beds for Group B particles[J],Industrial Engineering Chemistry Res 2004,43(18):5507–5520.
[13]
B.Du,L.S.Fan,Characteristics of choking behavior in circulating fluidized beds for Group B particles[J],Industrial Engineering Chemistry Res 2004,43(18):5507–5520.
[14]
Chang G,Song C,Wang L.A modeling and experimental study of flue gas desulfurization in a dense phase tower[J].Journal of Hazardous Materials,2011,189 (1-2):134-140.
[14]
Chang G,Song C,Wang L.A modeling and experimental study of flue gas desulfurization in a dense phase tower[J].Journal of Hazardous Materials,2011,189 (1-2):134-140.