现代化工

现代化工 ›› 2018, Vol. 38 ›› Issue (3) : 169-172. DOI: 10.16606/j.cnki.issn0253-4320.2018.03.037

科研与开发

生石灰消化特性及其对SDA法烟气脱硫性能的研究

马跃强, 易红宏, 唐晓龙, 杨仲禹, 赵顺征, 冯铁成, 杨茜, 崔晓旭, 杜琤赪

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Hydration characteristics of quicklime and its performance in flue gas desulfurization by SDA method

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Received		Published
2017-08-26		2018-03-20
Issue Date	Revised Date
2018-03-15	2017-08-26

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摘要

SDA法烧结烟气脱硫效率与石灰浆液的活性密切相关，在SDA烟气净化下，为了提高脱硫效率，考察了搅拌强度、消化水初始温度、m（H₂O）/m（CaO）等消化条件对生石灰的消化活性和烧结烟气脱硫效率的影响。结果表明，当搅拌转速为250 r/min、消化水初始温度为25℃、m（H₂O）/m（CaO）=6：1时，烟气脱硫效率达到92.5%左右。

Abstract

The sintering flue gas desulfurization efficiency via spray drying absorption (SDA) method is closely related to the activity of lime slurry.In order to improve desulfurization efficiency by changing the hydration conditions of quicklime,the effects of agitation intensity,initial water temperature for hydration,value of m(H₂O)/m(CaO) on the hydration activity of quicklime and sintering flue gas desulfurization efficiency are investigated.Results show that the flue gas desulfurization efficiency can reach 92.5% when the agitation speed is 250 r·min^-1,initial water temperature is 25℃and m(H₂O)/m(CaO)=6:1.