CN203620481U - Tail gas washing device - Google Patents
Tail gas washing device Download PDFInfo
- Publication number
- CN203620481U CN203620481U CN201320695595.8U CN201320695595U CN203620481U CN 203620481 U CN203620481 U CN 203620481U CN 201320695595 U CN201320695595 U CN 201320695595U CN 203620481 U CN203620481 U CN 203620481U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- liquid outlet
- tube
- inlet
- tower
- 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.)
- Expired - Lifetime
Links
- 238000005406 washing Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000746 purification Methods 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 6
- 239000000498 cooling water Substances 0.000 abstract description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 50
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a tail gas washing device. The tail gas washing device comprises a spray tube arranged therein, wherein a gas outlet is formed in the upper part of the spray tube; a gas inlet is formed in the lower part of the spray tube; a tail gas tower with a liquid outlet is arranged on the bottom of the spray tube; the liquid outlet is connected with a liquid inlet of a cooling water tank by a first liquid outlet tube; a liquid outlet of the cooling water tank is connected with a second liquid outlet tube with a water pump. The tail gas washing device is characterized in that the second liquid outlet tube is respectively connected with a circulating water tank and a tail gas spraying tube, wherein a second liquid inlet is further formed in the cooling water tank, and the second liquid inlet is connected with a de-acidified barren liquor tube. According to the tail gas washing device provided by the utility model, the de-acidified barren liquor can be conveniently utilized to replace the rest of ammonia water to carry out washing onto Kraus tail gas, so that incompletely-decomposed acid gas and un-captured elemental sulfur in the Kraus tail gas are effectively removed, and therefore, problems such as corrosion and blockage as entrainments carried in the Kraus tail gas enter a subsequent process or system are solved, and blockage on a tail gas tower by impurities such as tar or sulfur powder is avoided.
Description
Technical field
The utility model relates to a kind of washing absorption device, relates in particular to a kind of device that substitutes remained ammonia washing Claus tail gases by depickling lean solution, belongs to coking washing absorption technical field.
Background technology
Device for Claus tail gases is washed at present, all that remaining cold drum ammoniacal liquor is sent in tail gas tower, spray downwards on top from tower, Claus tail gases is from entering at the bottom of tower, flow from bottom to top, form the reverse flow of washings and tail gas, thereby tail gas is washed, absorbed.But owing to being entrained with too much tar and impurity in the remaining ammoniacal liquor of cold drum, in washing process, tar and impurity and sulphur powder can stick on the filler in tail gas cooling tower, increase the resistance of tail gas tower, even resulted in blockage etc., caused the tail gas after washing to be still entrained with H
2s, SO
2deng acid impurities, can cause heavy corrosion to the equipment of gas cleaning system.Therefore, be necessary prior art to be improved.
Summary of the invention
While utilizing remained ammonia to wash Claus tail gases for solving prior art, have problems such as stopping up serious and etching apparatus, the utility model provides a kind of washing tail gas device.
The utility model utilizes depickling lean solution to substitute remained ammonia and washs Claus tail gases, and washing and the absorption of enhancing to Claus tail gases, solve Claus tail gases entrainment and enter the burn into blockage problem that follow-up system causes, stop the scrubbing tower obstruction that the impurity such as tar and sulphur powder causes.
Depickling lean solution high containing ammonia, less containing tar and impurity, the analysis of remained ammonia and depickling lean solution contrasts and sees the following form, and from following table, with respect to remained ammonia, depickling lean solution is more suitable for as tail gas washing liquid.
The utility model is realized by following technical proposal: a kind of washing tail gas device, comprise and in it, be provided with shower, top is provided with gas outlet, bottom is provided with air inlet, bottom is provided with the tail gas tower of liquid outlet, liquid outlet is connected with bosh inlet by the first drain pipe, bosh liquid outlet is connected with the second drain pipe with water pump, it is characterized in that the second drain pipe respectively with circulating water chennel, tail gas tower shower is connected, on bosh, be also provided with the second inlet, the second inlet is connected with depickling lean solution pipe, so that depickling lean solution is sent in bosh, by water pump and drain pipe, the depickling lean solution in bosh is sent into and in tail gas tower, washed tail gas again, as required the high concentration cleaning solution after washing tail gas is sent in circulating water chennel simultaneously, for postorder processing.
Described tail gas tower is made as several, the liquid outlet of each tail gas tower is all connected with bosh inlet by the first drain pipe, air inlet is all connected with offgas duct, gas outlet is all connected with purification tracheae, so that after tail gas is washed, absorbed, make cleaning of off-gas return to production process use through purifying tracheae.
Described shower is arranged to respectively upper and lower two sections, is interval with multiple shower nozzles on each section of shower, tail gas is washed by multiple shower nozzles comprehensively.
Advantage of the present utility model and effect: adopt such scheme, can utilize easily depickling lean solution to substitute remained ammonia washs Claus tail gases, thereby effectively remove the elemental sulfur that the incomplete sour gas of the decomposition of carrying secretly in Claus tail gases and collection at large get off, make the hydrogen sulfide in sour gas be washed liquid absorption, wash the elemental sulfur in tail gas simultaneously, solve Claus tail gases entrainment and enter post-order process or system and cause the problems such as burn into obstruction, stop the obstruction that the impurity such as tar and sulphur powder causes tail gas tower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below by embodiment and accompanying drawing, the utility model is described further.
As Fig. 1, the washing tail gas device that the utility model provides, comprise and in it, be provided with shower 2, top is provided with gas outlet 3, bottom is provided with air inlet 12, bottom is provided with the tail gas tower 1 of liquid outlet 11, liquid outlet 11 is connected with bosh 8 inlets by the first drain pipe 10, bosh 8 liquid outlets are connected with the second drain pipe 5 with water pump 7, the second drain pipe 5 respectively with circulating water chennel 6, tail gas tower 1 upper, lower two sections of showers 2 are connected, on bosh 8, be also provided with the second inlet, the second inlet is connected with depickling lean solution pipe 9, described tail gas tower 1 is made as double tower, the liquid outlet 11 of each tail gas tower 1 is all connected with bosh 8 inlets by the first drain pipe 10, air inlet 12 is all connected with offgas duct 13, gas outlet 3 is all connected with purification tracheae 4, on described shower 2, be interval with multiple shower nozzles, tail gas is washed by multiple shower nozzles comprehensively.
When work, Claus tail gases enters respectively in two tail gas towers 1 in parallel from air inlet 12 by offgas duct 13, depickling lean solution is sent in bosh 8 by depickling lean solution pipe 9, provide wash cooling water to upper and lower two sections of showers 2 of two tail gas towers 1 respectively through water pump 7, drain pipe 5 again, washings from top to bottom, in tail gas reverse flow from bottom to top, Claus tail gases is carried out to spray washing, and clean tail gas enters purification tracheae 4 and returns to production process use through gas outlet 3; In the time that the cleaning solution concentration in bosh 8 reaches setting value, send in circulating water chennel through the second drain pipe 5, for postorder processing.
Claims (3)
1. a washing tail gas device, comprise and in it, be provided with shower, top is provided with gas outlet, bottom is provided with air inlet, and bottom is provided with the tail gas tower of liquid outlet, and liquid outlet is connected with bosh inlet by the first drain pipe, bosh liquid outlet is connected with the second drain pipe with water pump, it is characterized in that the second drain pipe is connected with circulating water chennel, tail gas tower shower respectively, be also provided with the second inlet on bosh, the second inlet is connected with depickling lean solution pipe.
2. washing tail gas device according to claim 1, it is characterized in that: described tail gas tower is made as several, the liquid outlet of each tail gas tower is all connected with bosh inlet by the first drain pipe, and air inlet is all connected with offgas duct, and gas outlet is all connected with purification tracheae.
3. washing tail gas device according to claim 1, is characterized in that: described shower is arranged to respectively upper and lower two sections, is interval with multiple shower nozzles on each section of shower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695595.8U CN203620481U (en) | 2013-11-06 | 2013-11-06 | Tail gas washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695595.8U CN203620481U (en) | 2013-11-06 | 2013-11-06 | Tail gas washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203620481U true CN203620481U (en) | 2014-06-04 |
Family
ID=50807008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320695595.8U Expired - Lifetime CN203620481U (en) | 2013-11-06 | 2013-11-06 | Tail gas washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203620481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087349A (en) * | 2014-07-29 | 2014-10-08 | 云南煤业能源股份有限公司 | Washing purification method and device of coal gas AS technique exhaust |
-
2013
- 2013-11-06 CN CN201320695595.8U patent/CN203620481U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087349A (en) * | 2014-07-29 | 2014-10-08 | 云南煤业能源股份有限公司 | Washing purification method and device of coal gas AS technique exhaust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 650000 A46 room, 3 science and Technology Innovation Park, Kunming, Kunming, Yunnan Patentee after: YUNNAN COAL & ENERGY Co.,Ltd. Address before: 650302 Yunnan city of Kunming province Anning City Lang Chuang Patentee before: YUNNAN COAL & ENERGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |