CN203663846U - Gas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregeneration - Google Patents
Gas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregeneration Download PDFInfo
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- CN203663846U CN203663846U CN201320638015.1U CN201320638015U CN203663846U CN 203663846 U CN203663846 U CN 203663846U CN 201320638015 U CN201320638015 U CN 201320638015U CN 203663846 U CN203663846 U CN 203663846U
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- Prior art keywords
- gas
- regeneration
- liquid
- tank
- circulating pump
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- Expired - Lifetime
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- 239000007789 gas Substances 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 239000003546 flue gas Substances 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 238000011069 regeneration method Methods 0.000 claims abstract description 35
- 230000008929 regeneration Effects 0.000 claims abstract description 34
- 239000010865 sewage Substances 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims description 20
- 238000005273 aeration Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 11
- 241000628997 Flos Species 0.000 claims description 7
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 3
- 238000004064 recycling Methods 0.000 abstract 2
- 239000010881 fly ash Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 238000005352 clarification Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Catalysts (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Agas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregenerationcomprisesa gas stripping type regeneration tank (1), a gas/liquid separation tank (2), a regeneration liquid inlet (3), an aerating pipe (4), a gas/liquid discharge port (5), a gas outlet (6), a sewage drain port (7), a regeneration liquid circulating pump (8) and a filter (9) and integrates regenerationaeration, regeneration cleaning, suspended mattersedimentation and regeneration liquid recycling functions. By the aid of the device, according to a gas strippingtypeaeration principle, fly ash and sediments on the surface of a denitrationinactivationcatalyst and in tiny pores can be efficiently removed through the floating water and gas mutualdisturbance effect inside a regenerationreactor; by the aid of the sedimentation and separation effects of a gas/liquid separator, the regeneration liquid circulating pump (8) is connected with the regeneration tank (1) and the gas/liquid separation tank (2) to realize recycling of a regenerationliquid, so that the regenerationefficiency of the denitrationcatalystis improved, the regeneration cost of the denitrationcatalyst is reduced, and secondary pollution in a regeneration process is reduced.
Description
Technical field
The utility model belongs to environmental project air pollution control technique field, is a kind of efficient, economic cleaning device for the regeneration of flue gas inactivation denitrating catalyst.
Background technology
For the NOx that further the controls coal fired power plant discharge impact on atmospheric environment, China has started fast coal fired power plant denitrating flue gas control during " 12 ", ended for the end of the year 2012, China's power station denitration installed capacity accounts for 28% of total coal fired power generation unit, wherein, most of denitrating technique adopts selective catalytic reduction (SCR).In denitrating catalyst use procedure, activity loses gradually, within general 3 years, just cannot guarantee afterwards denitration efficiency.Solving the method for catalysqt deactivation comprises and adopts more raw catelyst and decaying catalyst is carried out to cleaning and regeneration.Catalyst cleaning and regeneration can cost saving, can avoid waste again valuable metallic mineral resources and reduce that catalyst landfill disposes may be to the pollution of environment.Therefore, decaying catalyst is carried out to cleaning and regeneration and there is good economy and environmental benefit.
But the internal microcellular structure of SCR denitrating catalyst is very flourishing, its specific area (BET) is up to 50 m
2more than/g.Therefore, only depending on conventional cleaning, is thoroughly to remove the deposit in catalyst internal capillary, and the deposit washing down, along with the perturbation action of current, also may be re-attached to catalyst surface, thus the effect of impact regeneration.On the other hand, the regenerated liquid in conventional regeneration technique cannot recycle, and has increased regeneration cost.
Summary of the invention
The purpose of this utility model is to provide a kind of efficient, economic cleaning device for the regeneration of flue gas inactivation denitrating catalyst, the associated treatment technique that application gas stripping type aeration+clarification precipitation+circulation is reclaimed, realized catalyst effective cleaning, avoid the circulating and recovering of the contaminated and regenerated liquid of catalyst after cleaning.A kind of air lift-precipitation-circulation cleaning device for regenerating flue gas denitrifying catalyst, comprise gas stripping type regeneration tank (1), gas liquid separating tank (2), regenerated liquid import (3), aeration tube (4), gas liquid floss hole (5), exhaust outlet (6), sewage draining exit (7), regenerated liquid circulating pump (8) and filter (9), integrate regenerated aeration, regeneration washing, suspension precipitation and regenerated liquid and recycle function.
The purpose of this utility model is achieved in that
Device is by gas stripping type regeneration tank (1), gas liquid separating tank (2), regenerated liquid import (3), aeration tube (4), gas liquid exhaust outlet (5), exhaust outlet (6), sewage draining exit (7), regenerated liquid circulating pump (8) and filter (9) composition, described regenerated liquid import (3) is placed in regeneration tank (1) top one side, aeration tube (4) is arranged on regeneration tank (1) middle part with regenerated liquid import (3) the same side, gas liquid floss hole (5) be placed in regeneration tank (1) top opposite side, exhaust outlet (6) and sewage draining exit (7) be placed in respectively gas the above and below of liquid separating tank (2), regenerated liquid circulating pump (8) be arranged on gas between liquid separating tank (2) and regeneration tank (1).
The utility model is simple in structure, easy disassembly and transportation.
Accompanying drawing explanation
Fig. 1 is a kind of air lift-precipitation-circulation cleaning device structural representation for regenerating flue gas denitrifying catalyst.
The mark of accompanying drawing is described as follows:
1---regeneration tank;
2---gas liquid separating tank;
3---regenerated liquid import;
4---aeration tube;
5---gas liquid floss hole;
6---exhaust outlet;
7---sewage draining exit;
8---regenerated liquid circulating pump;
9---filter.
The specific embodiment
Take Figure of description as example, embodiment is further illustrated below:
To specifications shown in accompanying drawing, the each parts of catalyst regeneration cleaning device are installed: regenerated liquid service is installed in the regenerated liquid import (3) on regeneration tank (1) top, with pipeline connect gas liquid separating tank (2), filter (9), regenerated liquid circulating pump (8) and regenerated liquid import (3), with pipeline connect regeneration tank (1) top gas liquid floss hole (5), gas liquid separating tank (2), form closed circuit.Connect the blow-off pipe of aeration tube (4) and Aeration fan, sewage draining exit (7), connect Aeration fan power supply.
Inject 30 ~ 35 ℃ of deionized waters to default height by regenerated liquid import (3) to regeneration tank (1), as required, add regenerated liquid to reach default concentration range.
Catalyst module is placed in regeneration tank (1).
Open exhaust outlet (6), by aeration tube (4) aeration, produce top uncoupling type gas liquid two-phase mixed flow, and act on catalyst, mixture by gas liquid floss hole (5) enter gas liquid separating tank (2).
Until gas after regenerated liquid clarification in liquid separating tank (2), open regenerated liquid circulating pump (8), recycle regenerated liquid.
By flying dust pollution level, adjust aeration time according to catalyst.
According to gas the sedimental cumulant of liquid separating tank (2), timing drain deposit by sewage draining exit (7).
The deposit that periodic cleaning filter (9) is tackled.
Claims (1)
1. air lift-precipitation-the circulation cleaning device for regenerating flue gas denitrifying catalyst, comprise gas stripping type regeneration tank (1), gas liquid separating tank (2), regenerated liquid import (3), aeration tube (4), gas liquid floss hole (5), exhaust outlet (6), sewage draining exit (7), regenerated liquid circulating pump (8) and filter (9), described regenerated liquid import (3) is placed in regeneration tank (1) top one side, aeration tube (4) is arranged on regeneration tank (1) middle part with regenerated liquid import (3) the same side, gas liquid floss hole (5) be placed in regeneration tank (1) top opposite side, exhaust outlet (6) and sewage draining exit (7) be placed in respectively gas the above and below of liquid separating tank (2), regenerated liquid circulating pump (8) be arranged on gas between liquid separating tank (2) and regeneration tank (1), regenerated liquid circulating pump (8) upstream is provided with filter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638015.1U CN203663846U (en) | 2013-10-16 | 2013-10-16 | Gas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638015.1U CN203663846U (en) | 2013-10-16 | 2013-10-16 | Gas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203663846U true CN203663846U (en) | 2014-06-25 |
Family
ID=50960181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638015.1U Expired - Lifetime CN203663846U (en) | 2013-10-16 | 2013-10-16 | Gas stripping-sedimentation-circulating cleaning device for flue gas denitrationcatalystregeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203663846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499804A (en) * | 2021-06-29 | 2021-10-15 | 苏州西热节能环保技术有限公司 | Channel type countercurrent regeneration system for catalyst |
-
2013
- 2013-10-16 CN CN201320638015.1U patent/CN203663846U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499804A (en) * | 2021-06-29 | 2021-10-15 | 苏州西热节能环保技术有限公司 | Channel type countercurrent regeneration system for catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |