CN101822940A - Device for gas recovery and desulfurization at deamination tower top - Google Patents
Device for gas recovery and desulfurization at deamination tower top Download PDFInfo
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- CN101822940A CN101822940A CN 201010168262 CN201010168262A CN101822940A CN 101822940 A CN101822940 A CN 101822940A CN 201010168262 CN201010168262 CN 201010168262 CN 201010168262 A CN201010168262 A CN 201010168262A CN 101822940 A CN101822940 A CN 101822940A
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- desulfurization
- tower top
- flue gas
- deamination tower
- gas recovery
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Abstract
The invention discloses a device for gas recovery and desulfurization at a deamination tower top. The invention comprises a waste pipe I connected at the deamination tower top, a waste pipe II connected on a boiler, a water film dust catcher connected with the waste pipe I and the waste pipe II and a chimney discharging treated gases, wherein an exhaust pipe is connected between the water film dust catcher and the chimney. The invention has the advantages that the device has simple structure, easy production and low cost; and full contact and chemical reaction of dimethylamine and SO2 under a solution environment are used, thereby achieving the effect of simultaneous deamination and desulfurization and reducing discharge of the waste gases. The method is high effective and environment-friendly.
Description
Technical field
The present invention relates to the absorption treatment facility of DMF waste gas and boiler smoke, particularly a kind of device for gas recovery and desulfurization at deamination tower top.
Background technology
Can decompose in the DMF heating process and generate dimethylamine and formic acid, flow process is long more, heating-up temperature high de-agglomeration more is many more, trace acid is being arranged, decomposition rate can be accelerated under the situation that alkali exists, formic acid has catalytic action to the decomposition of DMF, the DMF decomposition rate increases with formic acid concn and the rising of temperature is the index increase, decompose the formic acid that produces and take sub-fraction out of with the DMF finished product, major part is stayed tower bottoms or is discharged with residue, the dimethylamine of corresponding generation is discharged with overhead water, because the dimethylamine boiling point is extremely low, finally can be dispersed in the air at normal temperatures, dimethylamine is colourless inflammable gas or liquid, high concentration or when compressing and liquefying, it is smelly to have strong ammonia beastly, the stench that concentration has a fish like smell when extremely low, inflammable, form explosive mixture with the air mixing energy, meet the danger that thermal source and naked light have combustion explosion, contact fierce reaction with oxidant, gas is heavier than air, and can be diffused into place quite far away in the lower.
And contain more flue dust and a large amount of sour gas SO2 in the boiler exhaust gas, SO2 is a kind of colourless gas with intense stimulus smell, easily be dissolved in blood and other stickiness liquid of human body, if directly be discharged in the atmosphere and can cause certain harm to environment, can cause respiratory inflammation, bronchitis, pulmonary emphysema, eye conjunctivitis disease etc., teen-age immunity is reduced, and resistance against diseases dies down; SO2 can generate sulfate aerosol under the effect of oxidant, light, sulfate aerosol can make the people cause a disease, and increases the patient death rate.According to the research of OECD (OECD), when sulfate year, concentration was in the 10 μ g/m3 left and right sides, the concentration of every minimizing 10% can make the death rate reduce by 0.5%; SO2 can also stick with the floating dust in the atmosphere, sucks the floating dust that has SO2 when human body respiration, and the toxicity of SO2 is strengthened.Studies show that under the influence of the SO2 of high concentration, plant produces acute hazard, blade surface produces necrotic plaque, or makes directly that plant leaf blade is withered to come off; Under the influence of low concentration SO 2, the GF of plant is affected, and causes output to descend, and quality degenerates; SO2 is to metal, and particularly to the corrosion of steel construction, bring very big loss to national economy every year, and according to estimates, the annual direct economic loss of bringing because of metal erosion of industrially developed country accounts for 2%～4% of total value of production in national economy.
Therefore how to take off amine and desulfurization processing effectively is the environmental issue of the required solution of manufacturing enterprise always, also is the social responsibility that manufacturing enterprise bore.
Summary of the invention
Problem to be solved by this invention just provides a kind of device for gas recovery and desulfurization at deamination tower top simple in structure, easy to make, with low cost, utilizes dimethylamine and SO
2Fully contact and the chemical reaction that takes place under solution environmental reach the effect of taking off the amine desulfurization simultaneously, reduce toxic emission, not only efficiently but also environmental protection.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of device for gas recovery and desulfurization at deamination tower top, it is characterized in that: comprise being connected the flue gas leading I that takes off the amine cat head, be connected the flue gas leading II on the boiler, the water dust scrubber that is connected with flue gas leading II with flue gas leading I, and the chimney of gas after the emission treatment, be connected with blast pipe between water dust scrubber and the chimney.
Further, described flue gas leading I and flue gas leading II merge into the top that the waste gas mixing tube is connected water dust scrubber.
Further, one of described blast pipe terminates at the bottom of water dust scrubber, and the other end of blast pipe is connected on the bottom of chimney.
Further, on blast pipe, be provided with air-introduced machine.
Further, be provided with the air blast of waste gas being sent into flue gas leading I taking off the amine cat head.
Further, be connected to air door before the described air blast.
After adopting technique scheme, the present invention has following advantage: simple in structure, easy to make, with low cost, utilize dimethylamine and SO
2Fully contact and the chemical reaction that takes place under solution environmental reach the effect of taking off the amine desulfurization simultaneously, reduce toxic emission, not only efficiently but also environmental protection.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of an embodiment of the present invention.
The specific embodiment
The structural representation of an embodiment of the present invention as shown in Figure 1, a kind of device for gas recovery and desulfurization at deamination tower top, comprise and be connected the flue gas leading I31 that takes off amine tower 1 top, be connected the flue gas leading II32 on the boiler 2, and carry out waste gas and take off the water dust scrubber 4 that the amine desulfurization is handled, also comprise the chimney 5 of gas after the emission treatment; Flue gas leading I31 and flue gas leading II32 merge into the top that waste gas mixing tube 3 is connected water dust scrubber 4, be connected with blast pipe 6 between water dust scrubber 4 and the chimney 5, one of blast pipe 6 terminates at the bottom of water dust scrubber 4, the other end of blast pipe 6 is connected on the bottom of chimney 5, is provided with air-introduced machine 61 on blast pipe 6; Be provided with the air blast 11 of waste gas being sent into flue gas leading I and before air blast 11, be connected to air door 12 taking off amine tower 1 top.
In the foregoing description, dimethylamine waste gas enters in the water dust scrubber after fully mixing with boiler exhaust gas process in the waste gas mixing tube is long-time, dimethylamine NH (CH3) the 2nd, and a kind of organic base, ionization obtains [NH in water
2(CH
3)
2]
+Ion and OH
-Ion, energy and SO
2Fully carry out chemical reaction rapidly, react as follows:
2NH(CH
3)
2+SO
2+H
2O＝[NH
2(CH
3)
2]
2·SO
3
Product is the sulfurous acid dimethylammonium, and together handle with boiler slag water-soluble back.The present invention is simple in structure, easy to make, with low cost, utilizes dimethylamine and SO
2Fully contact and the chemical reaction that takes place under solution environmental reach the effect of taking off the amine desulfurization simultaneously, reduce toxic emission, not only efficiently but also environmental protection.
Except that above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (6)
1. device for gas recovery and desulfurization at deamination tower top, it is characterized in that: comprise being connected the flue gas leading I (31) that takes off amine tower (1) top, be connected the flue gas leading II (32) on the boiler (2), the water dust scrubber (4) that is connected with flue gas leading II with flue gas leading I, and the chimney (5) of gas after the emission treatment, be connected with blast pipe (6) between water dust scrubber and the chimney.
2. a kind of device for gas recovery and desulfurization at deamination tower top according to claim 1 is characterized in that: described flue gas leading I and flue gas leading II merge into the top that waste gas mixing tube (3) is connected water dust scrubber.
3. a kind of device for gas recovery and desulfurization at deamination tower top according to claim 1 is characterized in that: one of described blast pipe terminates at the bottom of water dust scrubber, and the other end of blast pipe is connected on the bottom of chimney.
4. a kind of device for gas recovery and desulfurization at deamination tower top according to claim 3 is characterized in that: be provided with air-introduced machine (61) on blast pipe.
5. a kind of device for gas recovery and desulfurization at deamination tower top according to claim 1 is characterized in that: be provided with the air blast (11) of waste gas being sent into flue gas leading I taking off the amine top of tower.
6. a kind of device for gas recovery and desulfurization at deamination tower top according to claim 5 is characterized in that: be connected to air door (12) before the described air blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101682620A CN101822940B (en) | 2010-05-07 | 2010-05-07 | Device for gas recovery and desulfurization at deamination tower top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101682620A CN101822940B (en) | 2010-05-07 | 2010-05-07 | Device for gas recovery and desulfurization at deamination tower top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101822940A true CN101822940A (en) | 2010-09-08 |
| CN101822940B CN101822940B (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101682620A Expired - Fee Related CN101822940B (en) | 2010-05-07 | 2010-05-07 | Device for gas recovery and desulfurization at deamination tower top |
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|---|---|
| CN (1) | CN101822940B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977672A (en) * | 2014-06-10 | 2014-08-13 | 大连海事大学 | Processing method and processing device for organic waste gas |
| CN104399347A (en) * | 2014-11-29 | 2015-03-11 | 无锡市南长区科技创业服务中心 | Explosion-proof smoke treatment device for boiler |
| CN105417888A (en) * | 2015-12-18 | 2016-03-23 | 郑州大学综合设计研究院有限公司 | Clindamycin hydrochloride waste water processing technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5648053A (en) * | 1994-12-15 | 1997-07-15 | The Kansai Electric Power Co. Inc. | Process for removing carbon dioxide and nitrogen oxides from combustion gases |
| CN101157003A (en) * | 2007-08-02 | 2008-04-09 | 武汉凯迪电力环保有限公司 | Wet-type ammonia flue gas spiritualization technics of associated desulfuration demercuration |
| CN101274196A (en) * | 2007-12-11 | 2008-10-01 | 镇海石化工程有限责任公司 | Desulphurization method of amine liquid with high removal rate of hydrogen sulfide and special equipment |
| CN101422691A (en) * | 2008-11-20 | 2009-05-06 | 武汉凯迪电力环保有限公司 | Multi-pollutant removing technique and device of fuel coal smoke |
| CN201692742U (en) * | 2010-05-07 | 2011-01-05 | 海宁瑞星皮革有限公司 | Gas recovery desulfurizing device on top of deamination column |
-
2010
- 2010-05-07 CN CN2010101682620A patent/CN101822940B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5648053A (en) * | 1994-12-15 | 1997-07-15 | The Kansai Electric Power Co. Inc. | Process for removing carbon dioxide and nitrogen oxides from combustion gases |
| CN101157003A (en) * | 2007-08-02 | 2008-04-09 | 武汉凯迪电力环保有限公司 | Wet-type ammonia flue gas spiritualization technics of associated desulfuration demercuration |
| CN101274196A (en) * | 2007-12-11 | 2008-10-01 | 镇海石化工程有限责任公司 | Desulphurization method of amine liquid with high removal rate of hydrogen sulfide and special equipment |
| CN101422691A (en) * | 2008-11-20 | 2009-05-06 | 武汉凯迪电力环保有限公司 | Multi-pollutant removing technique and device of fuel coal smoke |
| CN201692742U (en) * | 2010-05-07 | 2011-01-05 | 海宁瑞星皮革有限公司 | Gas recovery desulfurizing device on top of deamination column |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977672A (en) * | 2014-06-10 | 2014-08-13 | 大连海事大学 | Processing method and processing device for organic waste gas |
| CN104399347A (en) * | 2014-11-29 | 2015-03-11 | 无锡市南长区科技创业服务中心 | Explosion-proof smoke treatment device for boiler |
| CN105417888A (en) * | 2015-12-18 | 2016-03-23 | 郑州大学综合设计研究院有限公司 | Clindamycin hydrochloride waste water processing technology |
| CN105417888B (en) * | 2015-12-18 | 2018-03-27 | 郑州大学综合设计研究院有限公司 | A kind of Clindamycin Hydrochloride waste water treatment process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101822940B (en) | 2012-02-08 |
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