CN107174937A - 烟气脱硫除尘设备 - Google Patents
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003546 flue gas Substances 0.000 title claims abstract description 33
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 15
- 230000023556 desulfurization Effects 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000018044 dehydration Effects 0.000 claims abstract description 7
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 7
- 238000004062 sedimentation Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 10
- 235000019738 Limestone Nutrition 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000006028 limestone Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 239000002912 waste gas Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 239000003517 fume Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
- B01D53/46—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
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- 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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Abstract
本发明涉及废气处理技术领域,具体涉及一种烟气脱硫除尘设备;包括洗气塔和安装在塔体下方的沉淀池,纳米碳酸钙在干燥和脱水时产生的烟气和生产废水分别通过烟道入口和进液管道进入洗气塔,与进液管道相连的喷淋头自上而下对流动烟气实施喷淋;本发明利用纳米碳酸钙生产中所产生的弱碱性废水来吸收其生产废气,从而既降低了废水的PH,又保证了烟气处理效果,使用该设备有助于提高资源利用率和降低废水、废气的处理成本。
Description
技术领域
本发明涉及废气处理技术领域,具体涉及一种烟气脱硫除尘设备。
背景技术
目前,纳米碳酸钙广泛应用于橡胶、塑料、油墨、涂料、密封胶和胶黏剂行业,其可以有效改善产品的流变性、抗弯曲强度等性能。现有技术中,纳米碳酸钙的主要生产工艺流程为:煅烧、消化、碳化、陈化、表面处理、脱水、干燥和包装。其中,脱水步骤中会产生大量PH在8.5-10之间的弱碱性废水,单独排放需要进行前处理;干燥步骤中的热源通常是由煤块对锅炉加热所提供,而煤块在燃烧时会产生大量难以处理的含硫烟气。因此,如何处理纳米碳酸钙生产过程中产生的废水和废气成为企业亟待解决的问题。
发明内容
本发明的目的是提供一种综合处理纳米碳酸钙生产废水和废气的烟气脱硫除尘设备。
为实现上述目的,本发明采用的技术方案是:一种烟气脱硫除尘设备,包括洗气塔和安装在塔体下方的沉淀池,纳米碳酸钙在干燥和脱水时产生的烟气和生产废水分别通过烟道入口和进液管道进入洗气塔,与进液管道相连的喷淋头自上而下对流动烟气实施喷淋。
采用上述技术方案产生的有益效果在于:本发明利用纳米碳酸钙生产中所产生的弱碱性废水来吸收其生产废气,从而既降低了废水的PH,又保证了烟气处理效果,使用该设备有助于提高资源利用率和降低废水、废气的处理成本。
附图说明
图1是本发明的结构示意图。
具体实施方式
一种烟气脱硫除尘设备,如图1所示,包括洗气塔10和安装在塔体下方的沉淀池20,纳米碳酸钙在干燥和脱水时产生的烟气和生产废水分别通过烟道入口11和进液管道121进入洗气塔10,与进液管道121相连的喷淋头122自上而下对流动烟气实施喷淋。在上述技术方案中,通过综合利用纳米碳酸钙生产中所产生的弱碱性废水来吸收其生产废气,从而既降低了废水的PH,又保证了烟气处理效果,使用该设备有助于简化处理工序,提高资源利用率,能有效降低废水、废气的处理成本。
更具体的方案为:为方便烟气进出和布置管路,所述烟道入口11设置在洗气塔10塔体的下部,洗气塔10塔体的顶部设有烟道出口13。
优选的,所述烟道入口11与喷淋头122之间沿烟气的排放方向依次布置有填料单元14和筛板15,具体的,填料单元14包括填料141和支撑填料141的托架142,填料141为石灰石。烟气自下而上流动,首先经过填料层,烟气中的二氧化硫与氧化钙反应生产亚硫酸钙;其次,纳米碳酸钙在板框脱水时所产生的弱碱性废水从喷淋头处喷淋而下,形成与烟气成逆向的高速雾化水幕,烟气与碱液相碰,其中的SO2被吸收,碱液也被中和,烟气中夹杂的烟尘因被碱液濡湿而增加了自重,随水流到洗气塔10底部而被排出;最后,烟气经过筛板时对筛板上的液层产生鼓泡作用,增加了气液传质的表面积和湍动状态,如此,可有效保证烟气的脱硫和除尘效果。实验表明,经处理后,从洗气塔10排出的烟气符合排放标准。
为方便排出碱液、脱硫生成物和烟尘,以及为防止烟气从底部排出,所述洗气塔10塔体底部设有连通沉淀池20的出水管16。
Claims (6)
1.一种烟气脱硫除尘设备,包括洗气塔(10)和安装在塔体下方的沉淀池(20),其特征在于:纳米碳酸钙在干燥和脱水时产生的烟气和生产废水分别通过烟道入口(11)和进液管道(121)进入洗气塔(10),与进液管道(121)相连的喷淋头(122)自上而下对流动烟气实施喷淋。
2.如权利要求1所述的烟气脱硫除尘设备,其特征在于:所述烟道入口(11)设置在洗气塔(10)塔体的下部,洗气塔(10)塔体的顶部设有烟道出口(13)。
3.如权利要求1或2所述的烟气脱硫除尘设备,其特征在于:所述烟道入口(11)与喷淋头(122)之间沿烟气的排放方向依次布置有填料单元(14)和筛板(15)。
4.如权利要求2所述的烟气脱硫除尘设备,其特征在于:所述填料单元(14)包括填料(141)和支撑填料(141)的托架(142)。
5.如权利要求1所述的烟气脱硫除尘设备,其特征在于:所述填料(141)为石灰石。
6.如权利要求1所述的烟气脱硫除尘设备,其特征在于:所述洗气塔(10)塔体底部设有连通沉淀池(20)的出水管(16)。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110238155A (zh) * | 2019-06-27 | 2019-09-17 | 江苏阆达机械有限公司 | 一种烘钢包除尘除异味装置 |
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CN1593725A (zh) * | 2004-06-18 | 2005-03-16 | 中国石油化工股份有限公司 | 具有气体导流和液柱湍冲的烟气脱硫塔 |
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US20120189522A1 (en) * | 2011-01-20 | 2012-07-26 | Foster Wheeler North America Corp. | Method of Desulfurizing Flue Gas, an Arrangement for Desulfurizing Flue Gas, and a Method of Modernizing a Desulfurization Arrangement |
CN203598644U (zh) * | 2013-08-27 | 2014-05-21 | 攀钢集团攀枝花钢铁研究院有限公司 | 烟气脱硫*** |
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-
2017
- 2017-07-11 CN CN201710559699.9A patent/CN107174937A/zh active Pending
Patent Citations (8)
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CN1593725A (zh) * | 2004-06-18 | 2005-03-16 | 中国石油化工股份有限公司 | 具有气体导流和液柱湍冲的烟气脱硫塔 |
CN201137952Y (zh) * | 2007-10-29 | 2008-10-22 | 于波涛 | 改进的烟气脱硫除尘装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110238155A (zh) * | 2019-06-27 | 2019-09-17 | 江苏阆达机械有限公司 | 一种烘钢包除尘除异味装置 |
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