CN102188888A - A wet method treatment process of purified flue gas with a water collection function in the process and a processing apparatus thereof - Google Patents
A wet method treatment process of purified flue gas with a water collection function in the process and a processing apparatus thereof Download PDFInfo
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- CN102188888A CN102188888A CN2011100912390A CN201110091239A CN102188888A CN 102188888 A CN102188888 A CN 102188888A CN 2011100912390 A CN2011100912390 A CN 2011100912390A CN 201110091239 A CN201110091239 A CN 201110091239A CN 102188888 A CN102188888 A CN 102188888A
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Abstract
The invention provides a wet method treatment process of purified flue gas with a water collection function in the process. The process is carrying out flue gas purification with wet method through absorption liquid spraying by a spray layer in an absorbing tower and the purified flue gas is discharged through a purified gas flue, wherein the purified flue gas is subject to demisting, cooling and water collection treatments through a cooler with a demister function in the absorbing tower or the purified gas flue. The invention also provides a wet method processing apparatus of purified flue gas and the apparatus has a water collection function. The apparatus comprises a absorbing tower and a purified gas flue, wherein a spray layer is provided in the absorbing tower, and a cooler with a demister function is provided in the absorbing tower or the purified gas flue. According to the invention, the purified flue gas is subject to demisting, cooling and water collection treatments through a cooler with a demister function in the absorbing tower or the purified gas flue, condensate water can be used for the water supply of the absorbing tower. And if the water content of the flue gas is high there is no need of water supply, thus the water consumption of the whole purifying system is zero and the goal of water saving is achieved.
Description
Technical field
The present invention relates to a kind of clean flue gas treating process of wet method and device of receiving water function that have, be applicable to wet type flue gas desulphurization fields such as limestone-gypsum method, ammonia process, two alkaline process, magnesium method.
Background technology
Domestic wet desulphurization technology comparative maturity, but the problem that exists is that water consumption is bigger.The a large amount of saturated vapors that contain in the wherein clean flue gas cause huge water waste by chimney emptying.In the water-deficient area, reclaim this part water and seem even more important.At present, no matter be any wet desulphurization method, to this part water all less than reclaiming or utilizing.
The temperature of the clean flue gas of desulfurizer is about 45～60 ℃, and the moisture that contains mainly exists with the saturated steam state in flue gas.
Summary of the invention
The purpose of this invention is to provide a kind of clean flue gas treating process of wet method and device of receiving water function that have, to reclaim the moisture in the clean flue gas, reach water saving, receive the water effect.
The clean flue gas treating process of wet method with receipts water function provided by the invention is: carry out wet type flue gas desulphurization by spraying layer spray absorption liquid in the absorption tower, clean flue gas is discharged by clean flue, wherein, the cooler by band demister function carries out demist, cooling receipts water to clean flue gas in the absorption tower and/or in the clean flue.
Preferably, in the absorption tower spraying layer above be provided with the cooler of band demister function.
Wherein, clean flue gas is carried out that water is received in demist, cooling and water that condensation is got off, can directly in the absorption tower, directly utilize or utilization again after reclaiming, handling.
Preferably, arrange one deck water jet,, remove fog effect and receive the water effect to increase by the circulating pump shower water on the top of the cooler of described band demister function.
Wherein, the water used of water jet can be fresh water (FW), treated in water or the recycle-water that obtains through the chiller treatment of band demister function.
The clean flue gas processing device of wet method with receipts water function provided by the invention comprises absorption tower and clean flue, is provided with spraying layer in the described absorption tower, is provided with the cooler of being with the demister function in the absorption tower and/or in the clean flue.
Preferably, the top of absorption tower spraying layer is provided with the cooler of band demister function.
Preferably, described have the clean flue gas processing device of wet method of receiving water function and also comprise the recovery water tower that is used to reclaim the recycle-water that obtains through the chiller treatment of described band demister function.
Preferably, arrange one deck water jet on the top of the cooler of described band demister function.
Preferably, the cooling device of the cooler of described band demister function and demister are provided with as a whole, and described demister is installed on the cooling medium conveyance conduit of described cooling device.
Need to prove that described clean flue is the clean flue of broad sense, just comprise all devices of the clean flue gas process of coming out, for example comprise the receipts water tower that is used to receive water of special setting from the absorption tower.
The present invention carries out demist, cooling receipts water by the cooler that uses band demister function in the absorption tower and/or in the clean flue to clean flue gas, the water that condensation is got off can be used for the moisturizing on absorption tower, big as water content in the flue gas, even can accomplish not moisturizing, make whole cleaning system zero water consumption, thereby reach the water saving purpose.
Description of drawings
Fig. 1 is a kind of user mode schematic diagram with clean flue gas processing device of wet method of receiving water function of the present invention, and wherein, the cooler of band demister function is arranged in the absorption tower;
Fig. 2 is the user mode schematic diagram that another kind of the present invention has the clean flue gas processing device of wet method of receiving water function, and wherein, the cooler of band demister function is arranged in the clean flue;
Fig. 3 is cooler and a kind of the be provided with structure chart of water jet in absorption tower or clean flue with band demister function of the clean flue gas processing device of wet method of receiving water function of the present invention
Among the figure: 1-coolant outlet pipe, the former flue of 2-, the clean flue of 3-, the 4-chimney, 5-absorption tower, 6-coolant inlet pipe, the 7-wash tub pipe, the clean flue of 8-removes chimney breast, and 9-reclaims water tower, 10-reclaims water pump, 11-water treatment facilities, 12-recycle-water pipeline, the 13-recycle-water removes the desulfurization pipeline, the 14-water jet, 15-demister, 16-cooling device.
The specific embodiment
The cooler of the band demister function that the present invention uses can form for cooling device and demister are designed to an integral body, and the blade while of demister also has the function of heat exchanger.
Cooling device is a kind of heat exchange equipment in essence, and it can reach the purpose that reduces clean flue-gas temperature.The version of cooling device can be for finned, and its version has defrosting function simultaneously.
Cooling medium can be cooling water or air, also can adopt ammonia cool equipment refrigeration.Cooling medium carries out the indirect cooled flue gas of heat exchange by metal tube.If cooling medium is an air, air is by directly emptying behind the cooling device.Cooling water can be recirculated water.
At northern area, except its excess-three season in summer can be carried out flue gas cool-down by the natural inflow form.
Can arrange one deck spraying layer on the top of cooler, to increase demist and cooling receipts water effect.The spray water can be from the recycle-water that reclaims in the water tower, also fresh water (FW) or treated in water.
Also in conjunction with the accompanying drawings the present invention is further specified below by embodiment.
Embodiment one
As shown in figures 1 and 3, in absorption tower 5, be provided with incorporate demister 15 and cooling device 16, the two ends of cooling device 16 connect coolant outlet pipe 1 and coolant inlet pipe 6 respectively, top at incorporate demister 15 and cooling device 16 (being the cooler of band demister function) is provided with water jet 14, and water jet 14 connects wash tub pipe 7.Technological process is: flue gas enters in the absorption tower 5 from former flue 2, through wet cleaning, comprises the receipts water effect of demister 15 and cooling device 16 and water jet 14 in absorption tower 5, and clean then flue gas enters chimney 4 through clean flue 3 and discharges.
Embodiment two
As shown in Figures 2 and 3, in clean flue 3, be provided with incorporate demister 15 and cooling device 16, the two ends of cooling device 16 connect coolant outlet pipe 1 and coolant inlet pipe 6 respectively, top at incorporate demister 15 and cooling device 16 (being the cooler of band demister function) is provided with water jet 14, and water jet 14 connects wash tub pipe 7.Clean flue 3 is provided with clean flue and removes chimney breast 8, be used to discharge clean flue gas, and clean flue 3 is connected with and reclaims water tower 9, reclaim water tower 9 and be connected with recovery water pump 10, reclaim water pump 10 and connect the two-way pipeline, one the tunnel for connecting the recycle-water pipeline 12 of water treatment facilities 11, and another road is that recycle-water removes desulfurization pipeline 13.By illustrating in accompanying drawing and the literary composition, understand the technological process of this embodiment easily, repeat no more here.
Claims (10)
1. has the clean flue gas treating process of wet method of receiving water function, in the absorption tower, carry out wet type flue gas desulphurization by spraying layer spray absorption liquid, clean flue gas is discharged by clean flue, it is characterized in that the cooler by band demister function in the absorption tower and/or in the clean flue carries out demist, cooling receipts water to clean flue gas.
2. according to claim 1 have a clean flue gas treating process of wet method of receiving water function, it is characterized in that, in the absorption tower spraying layer above be provided with the cooler of band demister function.
3. according to claim 1 have a clean flue gas treating process of wet method of receiving water function, it is characterized in that, clean flue gas is carried out that water is received in demist, cooling and water that condensation is got off, directly directly utilizes in the absorption tower or utilization again after reclaiming, handling.
4. according to claim 1 have a clean flue gas treating process of wet method of receiving water function, it is characterized in that, arranges one deck water jet on the top of the cooler of described band demister function, by the circulating pump shower water, removes fog effect and receive the water effect to increase.
5. the clean flue gas treating process of wet method with receipts water function according to claim 4 is characterized in that, the water that water jet is used is the recycle-water that the chiller treatment of fresh water (FW), treated middle water or process band demister function obtains.
6. have the clean flue gas processing device of wet method of receiving water function, comprise absorption tower and clean flue, be provided with spraying layer in the described absorption tower, it is characterized in that, in the absorption tower and/or in the clean flue, be provided with the cooler of being with the demister function.
7. the clean flue gas processing device of wet method with receipts water function according to claim 6 is characterized in that, the top of absorption tower spraying layer is provided with the cooler of band demister function.
8. according to claim 6 have a clean flue gas processing device of wet method of receiving water function, it is characterized in that, also comprises the recovery water tower that is used to reclaim the recycle-water that obtains through the chiller treatment of described band demister function.
9. according to claim 6 have a clean flue gas processing device of wet method of receiving water function, it is characterized in that, arranges one deck water jet on the top of the cooler of described band demister function.
10. the clean flue gas processing device of wet method with receipts water function according to claim 6, it is characterized in that, the cooling device of the cooler of described band demister function and demister are provided with as a whole, and described demister is installed on the cooling medium conveyance conduit of described cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100912390A CN102188888A (en) | 2011-04-12 | 2011-04-12 | A wet method treatment process of purified flue gas with a water collection function in the process and a processing apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100912390A CN102188888A (en) | 2011-04-12 | 2011-04-12 | A wet method treatment process of purified flue gas with a water collection function in the process and a processing apparatus thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102503020A (en) * | 2011-10-19 | 2012-06-20 | 北京生态岛科技有限责任公司 | Reclaimed water reuse device and its application in treatment of hazardous waste |
| CN102614770A (en) * | 2012-03-27 | 2012-08-01 | 艾淑艳 | Purified flue gas recycling device |
| CN105582772A (en) * | 2016-02-29 | 2016-05-18 | 西安西热锅炉环保工程有限公司 | Demister system having cooling capacity |
| CN105999755A (en) * | 2016-05-12 | 2016-10-12 | 西安热工研究院有限公司 | Cooling wet-desulphurization smoke demisting device |
| CN106861385A (en) * | 2017-03-20 | 2017-06-20 | 浙江澳蓝环保科技有限公司 | A kind of wet desulfurizing process of sulphur-containing exhaust gas |
| CN106925083A (en) * | 2015-12-29 | 2017-07-07 | 天津市英派克石化工程有限公司 | A kind of improved wet desulfurizing process |
| CN109908619A (en) * | 2019-02-28 | 2019-06-21 | 南京圣创科技有限公司 | A kind of method and apparatus of tubular type condensation dehydrating demisting |
| CN111720848A (en) * | 2020-07-13 | 2020-09-29 | 西安热工研究院有限公司 | System for reducing temperature of smoke at outlet of wet desulphurization absorption tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102503020A (en) * | 2011-10-19 | 2012-06-20 | 北京生态岛科技有限责任公司 | Reclaimed water reuse device and its application in treatment of hazardous waste |
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| CN102614770A (en) * | 2012-03-27 | 2012-08-01 | 艾淑艳 | Purified flue gas recycling device |
| CN106925083A (en) * | 2015-12-29 | 2017-07-07 | 天津市英派克石化工程有限公司 | A kind of improved wet desulfurizing process |
| CN105582772A (en) * | 2016-02-29 | 2016-05-18 | 西安西热锅炉环保工程有限公司 | Demister system having cooling capacity |
| CN105999755A (en) * | 2016-05-12 | 2016-10-12 | 西安热工研究院有限公司 | Cooling wet-desulphurization smoke demisting device |
| CN106861385A (en) * | 2017-03-20 | 2017-06-20 | 浙江澳蓝环保科技有限公司 | A kind of wet desulfurizing process of sulphur-containing exhaust gas |
| CN109908619A (en) * | 2019-02-28 | 2019-06-21 | 南京圣创科技有限公司 | A kind of method and apparatus of tubular type condensation dehydrating demisting |
| CN111720848A (en) * | 2020-07-13 | 2020-09-29 | 西安热工研究院有限公司 | System for reducing temperature of smoke at outlet of wet desulphurization absorption tower |
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Application publication date: 20110921 |