CN106693658A - 一种组合式降膜格栅脱硫塔 - Google Patents

一种组合式降膜格栅脱硫塔 Download PDF

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CN106693658A
CN106693658A CN201611272819.9A CN201611272819A CN106693658A CN 106693658 A CN106693658 A CN 106693658A CN 201611272819 A CN201611272819 A CN 201611272819A CN 106693658 A CN106693658 A CN 106693658A
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tower body
film grid
falling film
plate demister
oxidation
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岳乃利
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Shandong Lifeng Environmental Protection Technology Co Ltd
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Shandong Lifeng Environmental Protection Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/80—Semi-solid phase processes, i.e. by using slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

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  • Environmental & Geological Engineering (AREA)
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Abstract

本发明公开了一种组合式降膜格栅脱硫塔，包括一塔体，在所述塔体的上部，一侧设置烟尘进气口以及降膜格栅，另一侧设置折流板除雾器，在所述塔体上、所述折流板除雾器的外侧还设有一净化烟气出口；在所述塔体的下部、所述降膜格栅下方设置一浆液搅拌器，在所述折流板除雾器的下部、所述塔体的一侧设置石灰液补充进口；在所述塔体的底部还设有氧化曝气系统，在所述氧化曝气系统外部设有脱水石膏浆出口；本发明的有益效果是：塔体结构简单布局紧凑，降膜格栅与折流板除雾器能够有效处理烟尘，浆液搅拌器以及氧化曝气系统加快含硫液与石灰液反应，脱水石膏浆出口处能够定期排出石膏。

Description

一种组合式降膜格栅脱硫塔
技术领域
本发明涉及环境大气处理领域，特别是一种组合式降膜格栅脱硫塔。
背景技术
在环境大气处理领域，脱硫塔作为配套设备，广泛应用于燃煤工业锅炉和烟气脱硫等。最常用的喷淋吸收脱硫塔主要有喷淋空塔、填料塔、双回路塔及喷射鼓炮塔等，这些脱硫塔结构复杂，塔比高，动力消耗大，并且脱硫效率低。
发明内容
本发明的目的在于克服以上技术缺陷，提出一种结构简单，能耗小，脱硫效率高的组合式降膜格栅脱硫塔。
本发明为实现其技术目的所采取的技术方案是：一种组合式降膜格栅脱硫塔，包括一塔体，其特征在于：在所述塔体的上部，一侧设置烟尘进气口以及降膜格栅，另一侧设置折流板除雾器，在所述塔体上、所述折流板除雾器的外侧还设有一净化烟气出口；在所述塔体的下部、所述降膜格栅下方设置一浆液搅拌器，在所述折流板除雾器的下部、所述塔体的一侧设置石灰液补充进口；在所述塔体的底部还设有氧化曝气系统，在所述氧化曝气系统外部设有脱水石膏浆出口；
在所述烟尘进气口与所述降膜格栅之间设置浆液喷淋嘴，在所述塔体的外部还设有浆液循环泵，所述浆液循环泵通过管道连通塔体底部与所述浆液喷淋嘴。
本发明的有益效果是：塔体结构简单布局紧凑，降膜格栅与折流板除雾器能够有效处理烟尘，浆液搅拌器以及氧化曝气系统加快含硫液与石灰液反应，脱水石膏浆出口处能够定期排出石膏。
附图说明
图1为本发明结构示意图。
图中1、烟尘进气口 2、降膜格栅 3、浆液搅拌器 4、氧化曝气系统 5、脱水石膏浆出口 6、浆液喷淋嘴 7、折流板除雾器 8、净化烟气出口 9、石灰液补充进口 10、浆液循环泵 11、塔体 12、管道。
具体实施方式
下面结合附图实施例对本发明做进一步说明。
实施例一
如图1所示：一种组合式降膜格栅脱硫塔，包括一塔体11，在所述塔体11的上部，一侧设置烟尘进气口1以及降膜格栅2，另一侧设置折流板除雾器7，在所述塔体11上、所述折流板除雾器7的外侧还设有一净化烟气出口8；在所述塔体11的下部、所述降膜格栅2下方设置一浆液搅拌器3，在所述折流板除雾器7的下部、所述塔体1的一侧设置石灰液补充进口9；在所述塔体1的底部还设有氧化曝气系统4，在所述氧化曝气系统4外部设有脱水石膏浆出口5；
在所述烟尘进气口1与所述降膜格栅2之间设置浆液喷淋嘴6，在所述塔体1的外部还设有浆液循环泵10，所述浆液循环泵10通过管道12连通塔体1底部与所述浆液喷淋嘴6。
本发明的工作原理及工作过程如下：烟气从烟尘进气口1进入塔体11，经由浆液循环泵10循环至浆液喷淋嘴6的喷淋浆液混合，在降膜格栅2处由液膜碰撞吸收净化，由折流板除雾器7脱水除雾后外排至净化烟气出口8排出。含硫液在浆液搅拌器3处搅拌混合，通过氧化曝气系统4进行氧化形成石膏，由脱水石膏浆出口5定期排出，石灰液补充进口9处补充石灰液，调节塔体内PH值，维持浆液钙硫比例。

Claims (1)

1.一种组合式降膜格栅脱硫塔，包括一塔体，其特征在于：在所述塔体的上部，一侧设置烟尘进气口以及降膜格栅，另一侧设置折流板除雾器，在所述塔体上、所述折流板除雾器的外侧还设有一净化烟气出口；在所述塔体的下部、所述降膜格栅下方设置一浆液搅拌器，在所述折流板除雾器的下部、所述塔体的一侧设置石灰液补充进口；在所述塔体的底部还设有氧化曝气系统，在所述氧化曝气系统外部设有脱水石膏浆出口；
在所述烟尘进气口与所述降膜格栅之间设置浆液喷淋嘴，在所述塔体的外部还设有浆液循环泵，所述浆液循环泵通过管道连通塔体底部与所述浆液喷淋嘴。
CN201611272819.9A 2016-12-29 2016-12-29 一种组合式降膜格栅脱硫塔 Pending CN106693658A (zh)

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