CN214287446U - Sulfur tail gas treatment device - Google Patents
Sulfur tail gas treatment device Download PDFInfo
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- CN214287446U CN214287446U CN202022689524.XU CN202022689524U CN214287446U CN 214287446 U CN214287446 U CN 214287446U CN 202022689524 U CN202022689524 U CN 202022689524U CN 214287446 U CN214287446 U CN 214287446U
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- tail gas
- sulfur
- pipeline
- sulfur tail
- desulfurization
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Abstract
The utility model provides a sulfur tail gas treatment device, which at least comprises a sulfur tail gas incinerator, a sulfur tail gas discharge chimney and a flue gas desulfurization and dust removal tower; the outlet end of the sulfur tail gas incinerator is connected with a sulfur tail gas discharge chimney through a tail gas discharge pipeline, and a sulfur tail gas direct discharge chimney valve is arranged on the tail gas discharge pipeline; the inlet of the flue gas desulfurization and dust removal tower is connected with a flue gas desulfurization pipeline, and the flue gas desulfurization pipeline is connected with a tail gas discharge pipelineThe room is communicated through an outlet pipeline, and a sulfur tail gas merging desulfurization smoke control valve and a sulfur tail gas outlet valve are sequentially arranged on the outlet pipeline. The utility model discloses lead sulfur recovery tail gas to the flue gas desulfurization tower and handle, can guarantee tail gas SO2Discharging after reaching the standard. The utility model effectively solves the problem of unqualified treatment of sulfur tail gas emission; and the improvement process is simple, the cost is low, the period is short, and the aims of environmental protection and emission reduction are achieved.
Description
Technical Field
The utility model relates to a sulfur tail gas treatment process, in particular to a sulfur tail gas treatment device.
Background
At present, the sulfur return tail gas (SO) of the acid gas treatment device of the refinery is limited by the environmental protection emission index2) The treatment process has diversified technologies, and most of the treatment processes adopt newly-built alkali washing, amine washing and other desulfurization facilities to treat the sulfur return tail gas (SO)2) Has certain effect, but adds electricity consumption, water consumption, operators and the like, and increases the operation cost of the device.
SUMMERY OF THE UTILITY MODEL
In order to overcome current sulphur tail gas emission nonconforming, and the problem that the treatment cost is high, the utility model relates to a sulphur tail gas processing apparatus, the utility model discloses the effectual unqualified problem of sulphur tail gas emission of having solved, the utility model discloses the whole device is simply easily operated, and the energy consumption is low, good reliability.
The utility model adopts the technical proposal that:
a sulfur tail gas treatment device at least comprises a sulfur tail gas incinerator, a sulfur tail gas discharge chimney and a flue gas desulfurization and dust removal tower; the outlet end of the sulfur tail gas incinerator is connected with a sulfur tail gas discharge chimney through a tail gas discharge pipeline, and a sulfur tail gas direct discharge chimney valve is arranged on the tail gas discharge pipeline; the inlet of the flue gas desulfurization and dust removal tower is connected with a flue gas desulfurization pipeline, the flue gas desulfurization pipeline and the tail gas discharge pipeline are communicated through a lead-out pipeline, and the lead-out pipeline is sequentially provided with sulfur tail gas which is merged into a desulfurization flue gas control valve and a sulfur tail gas lead-out valve.
The tail gas discharge pipeline is provided with a sulfur tail gas leading-out position, and the sulfur tail gas leading-out position is positioned between the sulfur tail gas direct discharge chimney valve and the outlet of the sulfur tail gas incinerator.
One end of the lead-out pipeline, which is provided with a sulfur tail gas lead-out valve, is connected with a tail gas discharge pipeline at the lead-out position of the sulfur tail gas.
The desulfurization flue gas pipeline on be equipped with sulfur tail gas and merge into desulfurization flue gas pipeline position, sulfur tail gas merges into desulfurization flue gas pipeline position and keeps away from the flue gas desulfurization dusting tower.
The lead-out pipeline is provided with one end of a sulfur tail gas merging desulfurization flue gas control valve, and the sulfur tail gas merging desulfurization flue gas control valve is connected with a desulfurization flue gas pipeline at the position where the sulfur tail gas merges into the desulfurization flue gas pipeline.
The lead-out pipeline is provided with a fan, and the fan is positioned between the sulfur tail gas merging desulfurization flue gas control valve and the sulfur tail gas lead-out valve.
The fan is a mechanical pressurization conveying fan.
The utility model has the advantages that:
the utility model discloses lead sulfur recovery tail gas to flue gas desulfurization dusting tower and handle, can guarantee tail gas SO2Discharging after reaching the standard. The utility model effectively solves the problem of unqualified treatment of sulfur tail gas emission; and the improved process is simple, the cost is low, the period is short, and the purpose is achievedAchieving the purposes of environmental protection and emission reduction.
Drawings
The following will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figures, the reference numbers are: 1. a sulfur tail gas direct discharge chimney valve; 2. a sulfur tail gas lead-out valve; 3. a fan; 4. the sulfur tail gas is merged into a desulfurization flue gas control valve; 5. the sulfur tail gas is merged into the position of the desulfurization flue gas pipeline; 6. a sulfur tail gas leading-out position; 7. a sulfur tail gas incinerator; 8. a sulfur tail gas emission chimney; 9. a flue gas desulfurization and dust removal tower; 10. a flue gas desulfurization duct; 11. a lead-out line; 12. and a tail gas discharge pipeline.
Detailed Description
In order to overcome the problem that current sulphur tail gas emission is unqualified, and the treatment cost is high, the utility model provides a sulphur tail gas processing apparatus as shown in figure 1, the utility model discloses the effectual unqualified problem of sulphur tail gas emission of having solved, the utility model discloses the overall device is simply easy to operate, and the energy consumption is low, good reliability.
A sulfur tail gas treatment device at least comprises a sulfur tail gas incinerator 7, a sulfur tail gas discharge chimney 8 and a flue gas desulfurization and dust removal tower 9; the outlet end of the sulfur tail gas incinerator 7 is connected with a sulfur tail gas discharge chimney 8 through a tail gas discharge pipeline 12, and a sulfur tail gas direct discharge chimney valve 1 is arranged on the tail gas discharge pipeline 12; 9 access connection of flue gas desulfurization dusting tower have flue gas desulfurization pipeline 10, flue gas desulfurization pipeline 10 and exhaust emission pipeline 12 between through leading out pipeline 11 intercommunication, leading out pipeline 11 on be equipped with sulphur tail gas in proper order and merge into desulfurization flue gas control valve 4 and sulphur tail gas extraction valve 2.
The utility model discloses in, sulfur tail gas burns burning furnace 7, sulfur tail gas discharge chimney 8 and flue gas desulfurization dusting tower 9 and is current device, the utility model discloses in no longer carry out further explanation.
Under the conditions that the coming amount of acid gas and the content of hydrogen sulfide change and the like during sulfur recovery of an acid gas treatment device of a refinery plant, the waste gas discharged by a sulfur recovery tail gas incinerator cannot meet the requirement of environmental protection emissionAnd controlling the index. After the incineration tail gas is sent to a flue gas desulfurization and dust removal tower (EDV wet washing) for treatment through self-pressure or mechanical pressurization, sulfur incineration tail gas SO2The content can be reduced to below 10mg/Nm, and the treatment effect is obvious. The utility model discloses simple process is easy, reforms transform with low costs, the cycle is short, can reform transform on line, has ensured the long period operation of device.
Example 2:
based on embodiment 1, in this embodiment, preferably, a sulfur tail gas leading-out position 6 is arranged on the tail gas discharge pipe 12, and the sulfur tail gas leading-out position 6 is located between the sulfur tail gas direct discharge chimney valve 1 and an outlet of the sulfur tail gas incinerator 7.
Preferably, one end of the leading-out pipeline 11, which is provided with the sulfur tail gas leading-out valve 2, is connected with the tail gas discharge pipeline 12 at the sulfur tail gas leading-out position 6.
Preferably, the desulfurization flue gas pipeline 10 is provided with a sulfur tail gas merging position 5, and the sulfur tail gas merging position 5 is far away from the flue gas desulfurization dust removal tower 9.
Preferably, one end of the lead-out pipeline 11, which is provided with the sulfur tail gas merging desulfurization flue gas control valve 4, is connected with the desulfurization flue gas pipeline 10 at the position 5 where the sulfur tail gas merges into the desulfurization flue gas pipeline.
Preferably, the lead-out pipeline 11 is provided with a fan 3, and the fan 3 is positioned between the sulfur tail gas merging desulfurization flue gas control valve 4 and the sulfur tail gas lead-out valve 2.
Preferably, the fan 3 is a mechanical pressure delivery fan.
A sulfur tail gas treatment method comprises the following specific steps: open sulfur tail gas and merge into desulfurization flue gas control valve 4 and open sulfur tail gas extraction valve 2, close the direct chimney valve 1 that discharges of sulfur tail gas, burn the sulfur tail gas that unsatisfied emission requirement that 7 came out of sulfur tail gas, lead to flue gas desulfurization pipeline 10 and carry out the desulfurization and administer, the qualified tail gas of unsatisfied emission requirement after flue gas desulfurization gas wash tower is handled is direct to be discharged at the top of the tower, merge into desulfurization flue gas pipeline position 5 department's pressure differential decision whether to set up fan 3 according to sulfur tail gas extraction position 6 department and sulfur tail gas.
Preferably, when the pressure difference between the position 6 of the sulfur tail gas leading-out position and the position 5 of the sulfur tail gas pipeline merged into the desulfurization flue gas is greater than the pipeline pressure drop loss from the position 6 of the sulfur tail gas leading-out position to the position 5 of the sulfur tail gas pipeline merged into the desulfurization flue gas pipeline, the fan 3 is not needed; otherwise the fan 3 must be provided.
Preferably, the temperature control at the sulfur tail gas leading-out position 6 is determined by the temperature of a leakage point at the position 5 of the sulfur tail gas merging into the desulfurization flue gas pipeline from the sulfur tail gas leading-out position 6, so that no condensate is generated in the whole pipeline from the sulfur tail gas leading-out position 6 to the position 5 of the sulfur tail gas merging into the desulfurization flue gas pipeline.
The utility model discloses the sulphur tail gas after will burning leads to current technology unit flue gas desulfurization tower (EDV wet process washing) through the design through flowing automatically or mechanical transport mode and carries out tail gas treatment, SO in the sulphur tail gas after administering2The content is reduced from 450 mg/Nm to below 10mg/Nm by dry ethanol method.
As shown in fig. 1, the working process of the present invention is: opening sulfur tail gas and merging into desulfurization flue gas control valve 4, opening sulfur tail gas extraction valve 2, slowly closing sulfur tail gas direct vent chimney valve 1, introducing sulfur tail gas to flue gas desulfurization pipeline 10 and entering flue gas desulfurization dusting tower 9 and administer, qualified tail gas direct emission at the top of the tower after the sulfur tail gas that does not meet the emission requirement is handled by flue gas desulfurization dusting tower 9.
The utility model discloses lead sulfur recovery tail gas to flue gas desulfurization dusting tower 9 and handle, can guarantee tail gas SO2Discharging after reaching the standard. The utility model effectively solves the problem of unqualified treatment of sulfur tail gas emission; and the improvement process is simple, the cost is low, the period is short, and the aims of environmental protection and emission reduction are achieved.
The above examples are merely illustrations of the present invention, and do not constitute limitations to the scope of the present invention, and all designs identical or similar to the present invention belong to the scope of the present invention. The device structure and the method steps not described in detail in the present invention are prior art, and no further explanation will be given in the present invention.
Claims (7)
1. The utility model provides a sulfur tail gas processing apparatus which characterized in that: at least comprises a sulfur tail gas incinerator (7), a sulfur tail gas discharge chimney (8) and a flue gas desulfurization and dust removal tower (9); the outlet end of the sulfur tail gas incinerator (7) is connected with a sulfur tail gas discharge chimney (8) through a tail gas discharge pipeline (12), and a sulfur tail gas direct discharge chimney valve (1) is arranged on the tail gas discharge pipeline (12); flue gas desulfurization dusting tower (9) access connection have flue gas desulfurization pipeline (10), flue gas desulfurization pipeline (10) and exhaust emission pipeline (12) between through drawing pipeline (11) intercommunication, drawing pipeline (11) on be equipped with sulfur tail gas in proper order and merge into desulfurization flue gas control valve (4) and sulfur tail gas and draw valve (2).
2. The sulfur tail gas treatment device according to claim 1, wherein: the tail gas discharge pipeline (12) is provided with a sulfur tail gas leading-out position (6), and the sulfur tail gas leading-out position (6) is positioned between the sulfur tail gas direct discharge chimney valve (1) and an outlet of the sulfur tail gas incinerator (7).
3. The sulfur tail gas treatment device according to claim 1 or 2, wherein: one end of the lead-out pipeline (11) provided with the sulfur tail gas lead-out valve (2) is connected with a tail gas discharge pipeline (12) at a sulfur tail gas lead-out position (6).
4. The sulfur tail gas treatment device according to claim 1, wherein: flue gas desulfurization pipeline (10) on be equipped with sulfur tail gas and merge into desulfurization flue gas pipeline position (5), sulfur tail gas merges into desulfurization flue gas pipeline position (5) and keeps away from flue gas desulfurization dusting tower (9).
5. The sulfur tail gas treatment device according to claim 1 or 4, wherein: the lead-out pipeline (11) is provided with one end of a sulfur tail gas merging desulfurization flue gas control valve (4), and the sulfur tail gas merging desulfurization flue gas pipeline is connected with the flue gas desulfurization pipeline (10) at the position (5).
6. The sulfur tail gas treatment device according to claim 1, wherein: the lead-out pipeline (11) is provided with a fan (3), and the fan (3) is positioned between the sulfur tail gas merging desulfurization flue gas control valve (4) and the sulfur tail gas lead-out valve (2).
7. The sulfur tail gas treatment device according to claim 6, wherein: the fan (3) is a mechanical pressurization conveying fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022689524.XU CN214287446U (en) | 2020-11-19 | 2020-11-19 | Sulfur tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022689524.XU CN214287446U (en) | 2020-11-19 | 2020-11-19 | Sulfur tail gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214287446U true CN214287446U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022689524.XU Active CN214287446U (en) | 2020-11-19 | 2020-11-19 | Sulfur tail gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214287446U (en) |
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2020
- 2020-11-19 CN CN202022689524.XU patent/CN214287446U/en active Active
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