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微细颗粒在固阀洗涤塔内的洗涤脱除特性
许琳,陈雪莉,朱诗杰,代正华
作者单位E-mail
许琳 华东理工大学煤气化及能源化工教育部重点实验室, 上海市煤气化工程技术研究中心, 上海 200237  
陈雪莉 华东理工大学煤气化及能源化工教育部重点实验室, 上海市煤气化工程技术研究中心, 上海 200237 cxl@ecust.edu.cn 
朱诗杰 华东理工大学煤气化及能源化工教育部重点实验室, 上海市煤气化工程技术研究中心, 上海 200237  
代正华 华东理工大学煤气化及能源化工教育部重点实验室, 上海市煤气化工程技术研究中心, 上海 200237  
摘要:
以亲水玻璃微珠、改性疏水玻璃微珠、空气和水为实验介质,采用单因素方法,研究了固阀洗涤塔中颗粒粒径、入口颗粒浓度、两相流动参数、颗粒润湿性对粒径小于10 μm颗粒的洗涤效率的影响。结果表明:粒径大于2 μm的颗粒的洗涤效率均可达到90%以上;粒径大于0.5 μm的颗粒,洗涤效率随粒径增加而升高;粒径小于0.1 μm的颗粒,洗涤效率随粒径增加而下降;粒径为0.1~0.5 μm的颗粒,洗涤效率随粒径的增加,先升高后降低。对于粒径小于2 μm的颗粒,其洗涤效率随入口颗粒浓度、两相流动参数的增加,先升高后降低。颗粒润湿性对粒径小于2 μm的颗粒,尤其是粒径为0.1~0.5 μm的颗粒的洗涤效率影响显著,润湿性越好,洗涤效率越高,而对粒径大于2 μm的颗粒的洗涤效率影响不大。
关键词:  固阀塔板  洗涤塔  微细颗粒脱除  洗涤效率
DOI:10.14135/j.cnki.1006-3080.2017.02.001
分类号:
基金项目:上海市科委“科技创新行动计划”项目(15DZ1200802);山西省煤基重点科技攻关项目(MH2014-01)
Scrubbing Performance of Fine Particulates in Fixed Valve Scrubbing Tower
XU Lin,CHEN Xue-li,ZHU Shi-jie,DAI Zheng-hua
Abstract:
Using hydrophilic and hydrophobic glass beads,air and water as experimental medium,effects of particle size,inlet particle loading,two phase flow parameter and particle wettability on scrubbing efficiency for particles smaller than 10 μm were investigated based on the method of single factor investigation in fixed valve scrubbing tower.The experimental results indicate that for particles larger than 2 μm,the scrubbing efficiency can achieve above 90%.For particles larger than 0.5 μm,the scrubbing efficiency increases upon increasing particle size;For particles smaller than 0.1 μm,the scrubbing efficiency decreases upon increasing particle size;For particles between 0.1 μm and 0.5 μm,the scrubbing efficiency increases initially and decreases later upon increasing particle size;For particles smaller than 2 μm,the scrubbing efficiency enhances at first and then decreases with increasing inlet particle loading and two phase flow parameter.The wettability of particles has a considerable effect on the scrubbing efficiency of particles smaller than 2 μm,especially between 0.1 μm and 0.5 μm.The better the wettability is,the higher the efficiency is.However,the wettability has little effect on the scrubbing efficiency of particles larger than 2 μm.
Key words:  fixed valve plate  scrubbing tower  fine particle removal  scrubbing efficiency

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