CN201692742U - Gas recovery desulfurizing device on top of deamination column - Google Patents
Gas recovery desulfurizing device on top of deamination column Download PDFInfo
- Publication number
- CN201692742U CN201692742U CN2010201853102U CN201020185310U CN201692742U CN 201692742 U CN201692742 U CN 201692742U CN 2010201853102 U CN2010201853102 U CN 2010201853102U CN 201020185310 U CN201020185310 U CN 201020185310U CN 201692742 U CN201692742 U CN 201692742U
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- China
- Prior art keywords
- gas
- desulfurization
- gas recovery
- flue gas
- waste gas
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Abstract
The utility model discloses a gas recovery desulfurizing device on top of a deamination column, including a waste gas pipe I connected on the top of the deamination column; a waste gas pipe II connected on a boiler; a water film dust remover connected with waste gas pipes I, II and a chimney for discharging the gas after treatment; and an exhaust pipe is connected between the water film dust remover and the chimney. The utility model has advantages of simple structure, convenient production and low cost; the gas recovery desulfurizing device leads the dimethylamine and the sulfur dioxide to fully contact in a solution environment and react, thus achieving effects of de-amine and desulfurizing, decreasing the waste gas emission and being energy saving and environment friendly.
Description
Technical field
The utility model 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.
The utility model content
Problem to be solved in the utility model 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 utility model 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 utlity model 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 utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
The structural representation of a kind of embodiment of the utility model 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 utility model 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 utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
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 |
|---|---|---|---|
| CN2010201853102U CN201692742U (en) | 2010-05-07 | 2010-05-07 | Gas recovery desulfurizing device on top of deamination column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201853102U CN201692742U (en) | 2010-05-07 | 2010-05-07 | Gas recovery desulfurizing device on top of deamination column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201692742U true CN201692742U (en) | 2011-01-05 |
Family
ID=43393987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201853102U Expired - Lifetime CN201692742U (en) | 2010-05-07 | 2010-05-07 | Gas recovery desulfurizing device on top of deamination column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201692742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822940A (en) * | 2010-05-07 | 2010-09-08 | 海宁瑞星皮革有限公司 | Device for gas recovery and desulfurization at deamination tower top |
| CN104198596A (en) * | 2014-05-21 | 2014-12-10 | 江苏德峰药业有限公司 | Detection method of solvent residue in sodium propylthiouracil salt |
-
2010
- 2010-05-07 CN CN2010201853102U patent/CN201692742U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822940A (en) * | 2010-05-07 | 2010-09-08 | 海宁瑞星皮革有限公司 | Device for gas recovery and desulfurization at deamination tower top |
| CN101822940B (en) * | 2010-05-07 | 2012-02-08 | 海宁瑞星皮革有限公司 | Device for gas recovery and desulfurization at deamination tower top |
| CN104198596A (en) * | 2014-05-21 | 2014-12-10 | 江苏德峰药业有限公司 | Detection method of solvent residue in sodium propylthiouracil salt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110105 Effective date of abandoning: 20120208 |