Promoting the agglomeration and removal of coal-fired fine particles by coupling of chemical and turbulent agglomeration

被引：0

作者：

Sun Z. ^{[1
]}

Zhang X. ^{[1
]}

Yang L. ^{[1
]}

Chen S. ^{[1
]}

Wu X. ^{[1
]}

机构：

[1] Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, Jiangsu

来源：

Huagong Xuebao/CIESC Journal | 2020年 / 71卷 / 03期

关键词：

Aerosol; Agglomeration; Chemical spray; Coupling; Removal; Turbulent flow;

D O I：

10.11949/0438-1157.20191021

中图分类号：

学科分类号：

摘要：

By coupling the chemical agglomeration and turbulent agglomeration technology, the agglomeration and removal characteristics of coal-fired fine particles under the coupling effect of chemical and turbulent agglomeration, as well as the influence of particle concentration, flue gas temperature, flow rate of chemical agglomeration solution and flue gas velocity on them were studied experimentally. The results show that the chemical turbulence coupling agglomeration can further promote the agglomeration and growth of fine particles and the removal of fine particles by electrostatic procipitator under typical conditions, and its effect is better than that of the chemical turbulence agglomeration alone. With the increase of fine particle concentration, the agglomeration and removal efficiency decreased gradually, from 49.2% and 96.7% to 35.3% and 88.2% respectively. With the increase of flue gas temperature and flow rate of chemical agglomeration solution, the agglomeration and removal efficiency of fine particles first increased and then decreased, and they reached the maximum value at 180℃ and 12 L/h, which were 44.7% and 94.8%. With the increase of flue gas velocity, the agglomeration and removal efficiency of fine particles increased gradually, from 30.5% and 86.3% to 50.2% and 97.5% respectively. © All Right Reserved.

引用

页码：1317 / 1325

页数：8

共 32 条

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