CN2746972Y - 多功能复合脱硫塔 - Google Patents

多功能复合脱硫塔 Download PDF

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Publication number
CN2746972Y
CN2746972Y CN 200420109458 CN200420109458U CN2746972Y CN 2746972 Y CN2746972 Y CN 2746972Y CN 200420109458 CN200420109458 CN 200420109458 CN 200420109458 U CN200420109458 U CN 200420109458U CN 2746972 Y CN2746972 Y CN 2746972Y
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China
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tower
flue gas
absorption
washing
ammonia
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CN 200420109458
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English (en)
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徐长香
罗静
傅国光
陈文杰
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镇江市江南环保设备研究所
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Abstract

本实用新型属于环保设备,涉及一种用氨(氨水、碳铵、液氨)吸收脱除燃煤烟气中二氧化硫的多功能复合脱硫塔。该脱硫塔的塔体下部设置有烟气进口,塔体顶部设置有烟气出口;在烟气进口与烟气出口之间设置有洗涤降温段、脱硫吸收段和除雾器;洗涤降温段设置有若干组洗涤液喷淋装置;脱硫吸收段中段为填料段,填料段下方设置有下吸收液喷淋装置,填料段上方设置有上吸收液喷淋装置;在烟气进口下方的塔体底部设置有氧化装置。本实用新型设备集成度高,能够实现洗涤降温、脱硫吸收、亚盐氧化、除雾净化多种功能,设备成本和运行成本低,脱硫效果好。

Description

多功能复合脱硫塔
技术领域
本实用新型属于环保设备,涉及一种用氨(氨水、碳铵、液氨)吸收脱除燃煤烟气中二氧化硫的多功能复合脱硫塔。
背景技术
烟气尤其是燃煤锅炉烟气中的二氧化硫是大气污染最主要的根源之一,已成为环境治理的重要对象。氨法脱硫在脱硫的同时可副产硫酸、二氧化硫、硫酸铵、亚硫酸铵等产品,实现了硫资源的回收利用,不产生任何的二次污染,属于绿色清洁的脱硫技术。通常氨法烟气脱硫是用氨吸收二氧化硫生成亚硫酸铵,然后用空气氧化,但高浓度的亚硫酸铵不能快速完全被直接氧化成硫酸铵,而在较低浓度下氧化后浓缩工艺蒸发量很大,能耗很大且流程长,占地大,设备多运行费用高,装置的经济指标差,影响氨法烟气脱硫技术的推广应用。现有的此类氨法脱硫装置在使用过程中普遍在在着氨耗高、气溶胶难以消除、吸收液处理成本高、操作难度大等问题。
发明内容
本实用新型所要解决的技术问题是,设备集成度高,能够实现洗涤降温、脱硫吸收、亚盐氧化、除雾净化多种功能,设备成本和运行成本底,脱硫效果好的多功能复合脱硫塔。
本实用新型的多功能复合脱硫塔包括有一个塔体,塔体下部设置有烟气进口,塔体顶部设置有烟气出口;在烟气进口与烟气出口之间的塔体内腔中由下至上分别设置有洗涤降温段、脱硫吸收段和除雾器;所述洗涤降温段设置有若干组洗涤液喷淋装置,用来对烟气中的粉尘进行洗涤并降低烟气温度使其达到最佳的反应温度范围;所述脱硫吸收段中段为填料段,填料段可采用具有一定空隙率的散装或整装填料;在填料段下方设置有下吸收液喷淋装置,用来对烟气成份进行初步吸收,在填料段上方设置有上吸收液喷淋装置,用来对通过填料层的烟气进行吸收;在烟气进口下方的塔体底部设置有一个氧化装置,氧化装置的底部设置有空气进口和空气分布器,用来对反应后吸收液中的亚铵进一步氧化,以获得稳定的最终产物。
所述的除雾器可包括有一段下除雾层、一段上除雾层以及位于上、下除雾层之间的清洗喷淋装置。
本实用新型的脱硫塔可将烟气的洗涤降温、脱硫吸收、脱除铵雾和产物的进一步氧化各个过程集中在一个塔体中进行,大大节省了整套设备的空间占用、降低了设备成本和运行成本;同时,本实用新型的脱硫塔脱硫效果好,与普通氨法脱硫塔相比,其对烟气的吸收氧化更加彻底,其产物(主要为硫铵)更加具有利用价值。
附图说明
图1是本实用新型的结构示意图。
具体实施方式
如图所示,本实用新型的多功能复合脱硫塔塔身1由下至上设置有氧化装置7、烟气进口2、洗涤降温段3、脱硫吸收段4、除雾器5及烟气出口6,洗涤降温段设置有洗涤液喷淋装置31,脱硫吸收段设置有填料段41。填料段采用散装或规整的填料,要求具有高表面积、高空隙率、低压降,一般比表面积大于200m2/m3、空隙率大于98%、压降小于100Pa/m。填料段的上、下分别设置有上吸收液喷淋装置42和下吸收液喷淋装置43。氧化装置7的底部通过空气进口71和空气分布器72通入空气,用来对反应后吸收液中的亚硫铵进一步氧化为硫铵,以提高产物的利用价值。
所述的除雾器5可采用折流板、旋流板等常规的除雾器结构,也可采用附图所示的结构,即,由一段下除雾层51、一段上除雾层52以及位于上、下除雾层之间的清洗喷淋装置53构成。下除雾层51由板波纹、波纹丝网等规整填料构成,其作用是捕集烟气中大的液滴并利用填料性能进一步使吸收反应趋于完全从而从根本上减少铵雾的生成;上除雾层52由圆丝或扁丝编织成的丝网或者用板网压制的波纹填料构成,其高度小于下除雾层,其作用是吸附细小的雾滴,使其凝聚成较大的液滴滴落;清洗喷淋装置53的喷头朝向上、下两个方向,用于对上、下两层除雾层进行冲洗,以防止堵塞。

Claims (2)

1.一种多功能复合脱硫塔包括有一个塔体,塔体(1)下部设置有烟气进口(2),塔体顶部设置有烟气出口(6),其特征是:在烟气进口与烟气出口之间的塔体内腔中由下至上分别设置有洗涤降温段(3)、脱硫吸收段(4)和除雾装置(5);所述洗涤降温段设置有若干组洗涤液喷淋装置(31);所述脱硫吸收段中段为填料段(41),填料段下方设置有下吸收液喷淋装置(43),填料段上方设置有上吸收液喷淋装置(42);在烟气进口下方的塔体底部设置有一个氧化装置(7),氧化装置的底部设置有空气进口(71)和空气分布器(72)。
2.根据权利要求1所述的多功能复合脱硫塔,其特征是:所述的除雾器(5)包括有下除雾层(51)、一段上除雾层(52)以及位于上、下除雾层之间的清洗喷淋装置(53)。
CN 200420109458 2004-12-07 2004-12-07 多功能复合脱硫塔 CN2746972Y (zh)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151470A (zh) * 2011-01-28 2011-08-17 山东华鲁恒升集团德化设计研究有限公司 一种烟气脱硫方法及其装置
CN102247741A (zh) * 2011-07-15 2011-11-23 攀钢集团有限公司 一种烟气脱硫工艺
CN103463949A (zh) * 2013-08-08 2013-12-25 江苏新世纪江南环保股份有限公司 一种烟气脱硫系统处理油污、烟尘的方法与设备
US10016721B1 (en) 2017-05-25 2018-07-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desufurization process and apparatus
US10092877B1 (en) 2017-05-25 2018-10-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10099170B1 (en) 2017-06-14 2018-10-16 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10112145B1 (en) * 2017-09-07 2018-10-30 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US20190001267A1 (en) 2017-07-03 2019-01-03 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US20190046925A1 (en) * 2017-03-15 2019-02-14 Jiangnan Environmental Protection Group, Inc. Method and apparatus for removing sulfur oxides from gas

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102151470A (zh) * 2011-01-28 2011-08-17 山东华鲁恒升集团德化设计研究有限公司 一种烟气脱硫方法及其装置
CN102151470B (zh) * 2011-01-28 2013-11-06 山东华鲁恒升集团德化设计研究有限公司 一种烟气脱硫方法及其装置
CN102247741B (zh) * 2011-07-15 2014-07-09 攀钢集团有限公司 一种烟气脱硫工艺
CN102247741A (zh) * 2011-07-15 2011-11-23 攀钢集团有限公司 一种烟气脱硫工艺
CN103463949A (zh) * 2013-08-08 2013-12-25 江苏新世纪江南环保股份有限公司 一种烟气脱硫系统处理油污、烟尘的方法与设备
US20190046925A1 (en) * 2017-03-15 2019-02-14 Jiangnan Environmental Protection Group, Inc. Method and apparatus for removing sulfur oxides from gas
US10413864B2 (en) 2017-03-15 2019-09-17 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10406477B2 (en) * 2017-03-15 2019-09-10 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10207220B2 (en) * 2017-03-15 2019-02-19 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10675584B2 (en) 2017-03-15 2020-06-09 Jiangnan Environmental Protection Group Inc. Method and apparatus for removing sulfur oxides from gas
US10092877B1 (en) 2017-05-25 2018-10-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10016721B1 (en) 2017-05-25 2018-07-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desufurization process and apparatus
US10561982B2 (en) 2017-05-25 2020-02-18 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10213739B2 (en) 2017-05-25 2019-02-26 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10343110B2 (en) 2017-05-25 2019-07-09 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10413865B2 (en) 2017-05-25 2019-09-17 Jiangnan Enviromental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10471383B2 (en) 2017-05-25 2019-11-12 Jiangnan Environmental Protection Group Inc. Dust removal and desulfurization of FCC exhaust gas
US10399033B2 (en) 2017-05-25 2019-09-03 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10406478B2 (en) 2017-05-25 2019-09-10 Jiangnan Environmental Protection Group Inc. Ammonia-based desulfurization process and apparatus
US10099170B1 (en) 2017-06-14 2018-10-16 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10589212B2 (en) 2017-06-14 2020-03-17 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10159929B1 (en) 2017-06-14 2018-12-25 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US10583386B2 (en) 2017-06-14 2020-03-10 Jiangnan Environmental Protection Group Inc. Ammonia-adding system for ammonia-based desulfurization device
US20190001267A1 (en) 2017-07-03 2019-01-03 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10427097B2 (en) 2017-07-03 2019-10-01 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10421040B2 (en) 2017-07-03 2019-09-24 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10556205B2 (en) 2017-07-03 2020-02-11 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10561984B2 (en) 2017-07-03 2020-02-18 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10618001B2 (en) 2017-07-03 2020-04-14 Jiangnan Environmental Protection Group Inc. Desulfurization absorption tower
US10449488B2 (en) 2017-09-07 2019-10-22 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10357741B2 (en) 2017-09-07 2019-07-23 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10112145B1 (en) * 2017-09-07 2018-10-30 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization
US10369517B2 (en) 2017-09-07 2019-08-06 Jiangnan Environmental Protection Group Inc. Method for controlling aerosol production during absorption in ammonia desulfurization

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