CN104874259A - Industrial exhaust gas finish washing process - Google Patents
Industrial exhaust gas finish washing process Download PDFInfo
- Publication number
- CN104874259A CN104874259A CN201510302927.5A CN201510302927A CN104874259A CN 104874259 A CN104874259 A CN 104874259A CN 201510302927 A CN201510302927 A CN 201510302927A CN 104874259 A CN104874259 A CN 104874259A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- equipment
- absorbing medium
- industrial exhaust
- finish washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004202 carbamide Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention relates to an industrial exhaust gas finish washing process, which relates to the technical field of industrial exhaust gas finish washing, and is characterized in that a U-shaped pipe is arranged between a device (5) and a device (6), a U-shaped pipe is arranged between the device (6) and a device (7), a U-shaped pipe is arranged between the device (7) and a device (8), so that the requirement of the liquid level of absorbing medium of the devices is ensured. The absorbing medium sequentially penetrates through the device (5), the device (6), the device (7) and the device (8) from an absorbing medium inlet through potential difference, and is finally discharged through an absorbing medium port (4). According to the industrial exhaust gas finish washing process, through four times of recovery of ammonia in exhaust gas, the recovery rate of the ammonia in the exhaust gas of a urea production process is improved, the consumption of the production process is reduced, the emission of the harmful industrial exhaust gas is reduced, the devices are respectively of a horizontal type design, and the four devices are staked up to be in position so as to be convenient to install.
Description
Technical field
The present invention relates to industrial tail gas fine purifiation technical field, be specifically related to a kind of industrial tail gas fine purifiation technique.
Background technology
In urea production, adopt once washing absorption process to reclaim rear tail gas emptying to the vapour ammonia in tail gas, recovering effect is poor, causes to produce to consume greatly, pollutant atmosphere.
Summary of the invention
The object of this invention is to provide a kind of industrial tail gas fine purifiation technique, what it realized vapour ammonia in tail gas by one group of equipment reclaims for four times, improves the rate of recovery of vapour ammonia in urea production process tail gas.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: industrial tail gas is successively by 5,/6/,7/8 4 equipment, and carry out fully contacting with the absorbing medium in equipment the absorption reached vapour ammonia in tail gas, final tail gas enters air.Absorbing medium in absorption process in 5/,6/7 three equipment keeps certain liquid level by U-tube.The heat produced in absorption process is removed by cooling water by the heat exchanger tube in equipment.Equipment in technique is pressure vessel, and 5/,6/7 three device structure is identical.
The present invention has following beneficial effect:
1, the consumption of production process is reduced;
2, the discharge of noxious industry tail gas is reduced;
3, the rate of recovery of vapour ammonia in urea production process tail gas is improved.
Accompanying drawing illustrates:
Fig. 1 is flow chart of the present invention.
detailed description of the invention:
With reference to Fig. 1, industrial tail gas, is finally discharged from offgas outlet 2 from inlet exhaust gas 1 successively by equipment 5, equipment 6, equipment 7, equipment 8.Be provided with U-tube between equipment 5 and equipment 6, between equipment 6 and equipment 7, be provided with U-tube, between equipment 7 and equipment 8, be provided with U-tube, ensure the requirement of equipment absorbing medium liquid level.Absorbing medium passes through equipment 8, equipment 7, equipment 6, equipment 5 from absorbing medium import 3 successively by potential difference, finally discharges from absorbing medium outlet 4.Equipment is horizontal design, and four equipment stack in place, is convenient to install.
Claims (1)
1. an industrial tail gas fine purifiation technique, it is characterized in that, it comprises cleaning equipment (5), cleaning equipment (6), cleaning equipment (7) and cleaning equipment (8), equipment (8) is connected by U-tube with equipment (7), equipment (7) is connected by U-tube with equipment (6), equipment (6) is connected by U-tube with equipment (5), equipment is horizontal design, and four equipment stack in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302927.5A CN104874259A (en) | 2015-06-06 | 2015-06-06 | Industrial exhaust gas finish washing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302927.5A CN104874259A (en) | 2015-06-06 | 2015-06-06 | Industrial exhaust gas finish washing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874259A true CN104874259A (en) | 2015-09-02 |
Family
ID=53942094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302927.5A Pending CN104874259A (en) | 2015-06-06 | 2015-06-06 | Industrial exhaust gas finish washing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797542A (en) * | 2016-05-23 | 2016-07-27 | 肥西县鑫山机械厂 | Intensive washing process for industrial exhaust gas |
| CN105944510A (en) * | 2016-07-03 | 2016-09-21 | 安徽碧源环保工程有限公司 | Industrial tail gas fine cleaning process |
-
2015
- 2015-06-06 CN CN201510302927.5A patent/CN104874259A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797542A (en) * | 2016-05-23 | 2016-07-27 | 肥西县鑫山机械厂 | Intensive washing process for industrial exhaust gas |
| CN105944510A (en) * | 2016-07-03 | 2016-09-21 | 安徽碧源环保工程有限公司 | Industrial tail gas fine cleaning process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |