Process and system for reducing particle content after flue gas desulfurization

一种降低烟气脱硫后颗粒物含量的工艺及系统

Abstract

本发明提供了一种降低烟气脱硫后颗粒物含量的工艺及系统,包括脱硫塔和第二浆液池,脱硫塔底部设置有第一浆液池,脱硫塔下部开设有烟气入口,脱硫塔内位于烟气入口上方为脱硫级,脱硫级分为至少两段,先与烟气接触的前段脱硫级通过第一段的循环泵连接第一浆液池,最后一段脱硫级通过第二段的循环泵连接第二浆液池;脱硫级上方设置有第一除雾器,第一除雾器连接有喷雾段,喷雾段连接第二除雾器,第二除雾器上部设置烟气出口;还包括第三浆液池,所述第三浆液池通过第三循环泵与喷雾段连接。本发明构造简单,无论是新建项目还是旧项目改造,都不会过多的增加工程成本;能够显著降低排放烟气中的细微颗粒物含量,从而避免脱硫系统对周边环境的污染。
The invention provides a process and a system for reducing particle content after flue gas desulfurization. The system comprises a desulfurization tower and a second slurry pond; a first slurry pond is arranged at the bottom of the desulfurization tower; a flue gas inlet is formed in the lower part of the desulfurization tower; a desulfurization stage which is divided into at least two sections is positioned in the desulfurization tower and above the flue gas inlet; the front desulfurization stage section in contact with the flue gas is connected to a first slurry pond through a circulating pump at the first section, and the last desulfurization stage section is connected with the second slurry pond through the circulating pump at the second section; a first defogging device is arranged above the desulfurization stage and connected with a spray section; the spray section is connected with a second defogging device, and a flue gas outlet is formed in the upper part of the second defogging device. The system further comprises a third slurry pond which is connected with the spray section through a third circulating pump. The system is simple in structure; the engineering cost cannot be excessively increased in a new project or a reconstruction project; the content of fine particles in the exhausted flue gas can be obviously decreased, and thus the pollution of the desulfurization system to the surrounding environment can be avoided.

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Patent Citations (5)

    Publication numberPublication dateAssigneeTitle
    CN-102872709-AJanuary 16, 2013江苏和亿昌环保工程科技有限公司一种高效捕捉脱硫后烟气中气溶胶的工艺
    CN-201664576-UDecember 08, 2010殷茵Apparatus for removing sulfur dioxide in flue gas by ammonia water
    CN-203971739-UDecember 03, 2014山东索普节能科技有限公司Pneumatic emulsified concentrated phase desulfurization system
    CN-204412061-UJune 24, 2015江苏揽山环境科技有限公司一种降低烟气脱硫后颗粒物含量的系统
    EP-0793994-B1April 16, 2003Mitsubishi Jukogyo Kabushiki KaishaVorrichtung zur Nassentschwefelung von Rauchgas

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Cited By (2)

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    CN-105056679-ANovember 18, 2015中国五环工程有限公司Method and device for removing PM2.5 (particulate matter) in WFGD (wet flue gas desulfurization) process
    CN-105056679-BMarch 01, 2017中国五环工程有限公司湿法脱硫过程中PM<sub>2.5</sub>脱除方法及其装置