CN203556245U - Filtering module - Google Patents
Filtering module Download PDFInfo
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- CN203556245U CN203556245U CN201320685690.XU CN201320685690U CN203556245U CN 203556245 U CN203556245 U CN 203556245U CN 201320685690 U CN201320685690 U CN 201320685690U CN 203556245 U CN203556245 U CN 203556245U
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- plate
- riser
- filtering module
- washing
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Abstract
The utility model discloses a filtering module. The filtering module is characterized by comprising a demister, a dedusting section and a spraying absorbing section, wherein the demister, the dedusting section and the spraying absorbing section are successively connected from top to bottom, and the top of the demister is provided with an exhaust port; the dedusting section is internally provided with a washing tower plate, the two sides of the tower plate are provided with liquid dropping pipes, the lower sides of the liquid dropping pipes are provided with air rising pipe plates, the air rising pipe plates are provided with multiple air rising pipes, the air rising pipes are fixed on the air rising pipe plates, and the air rising pipe plates are fixed on a tower wall; the air rising pipe plates are communicated with a washing liquid groove, the washing liquid groove is provided with a technology water inlet, the washing liquid groove is connected with an inlet end of a washing liquid pump, and an outlet end of a washing liquid pump II is connected with a washing liquid pipeline; the spraying absorbing section is provided with a smoke inlet, the bottom of the spraying absorbing section is provided with a liquid storing groove, and the liquid storing groove is communicated with a spraying device of the absorbing section through a circulating pump I. The filtering module provided by the utility model has the advantages that gypsum seriflux which is entrained in the smoke is washed through a technology water solution by the filtering module, and the discharge value of the gypsum is reduced.
Description
Technical field
The utility model relates to the filtering module adopting for reducing gypsum slurries discharge in a kind of coal burning flue gas desulfurization, belongs to environmental chemical engineering technical field.
Background technology
Coal burning flue gas desulfurization is one of task of energy-saving and emission-reduction, and in recent ten years, the most of desulfurizer of setting up of China, mainly pays close attention to SO in flue gas
2removal efficiency, and the subparticle (PM2.5) discharging carrying secretly in flue gas is considered less.In recent years, along with China's industrial expansion, the haze weather because the subparticle discharging brings, has affected the healthy of the people, thereby has caused everybody concern.
Take Chinese large-sized desulfurizer as example, and great majority adopt lime stone one gypsums, and the gypsum slurries of carrying secretly in flue gas enters moisture evaporation after atmosphere, has just formed fine gypsum (CaSO
42H
2o) particle.In order to reduce the gypsum slurries of carrying secretly in flue gas, between desulfuration absorbing tower absorber portion and demist section, filtering module is set, adopting process water washing flue gas, to remove the gypsum slurries of carrying secretly in flue gas, thereby reduce the discharge that can form the gypsum slurries of fine gypsum particle in flue gas, reduce the discharge of PM2.5 gypsum particle.
1. wet scrubbing
In lime stone one gypsum absorption liquid, calcium sulfate concentration is higher, reduce the gypsum slurries of carrying secretly in flue gas, can adopting process water washing, and in fresh water (FW), the concentration of calcium sulfate is lower, and it is more favourable that calcium sulfate is removed in washing.
2. filtering module
Filtering module generally includes following a few part
(1) riser plate
Riser plate is that washing column plate and absorber portion are separated, flue gas enters washing column plate by the riser arranging on riser plate by absorber portion, the cleaning solution circulating in filtering module with absorber portion in circulating absorption solution be what to separate, circulate separately, therefore be conducive to the water balance of full tower, improved the detersive efficiency of washing column plate simultaneously.
(2) washing column plate
Desulfuration absorbing tower, because the exhaust gas volumn of processing is large, so velocity of flue gas is 3～4m/s in absorption tower, arranges filtering module between absorber portion and demist section, and its washing column plate also should be able to move under the velocity of flue gas of 3m/s left and right, therefore selects macroporous plate.
Macroporous plate operates under spray regime, and the speed of flue gas by sieve aperture is high, is therefore continuous phase, and liquid layer on sieve plate is sent into forth drop by high-speed gas, is decentralized photo, and this is the same during with the operation of the selected spray column of absorber portion.
Take coal-burning boiler 75t/h as example, and exhaust gas volumn is 100,000 m
3/ h (mark side), its absorption tower tower diameter is Φ 3600mm, gas speed 3.5m/s in tower, on former column plate, static liquid layer is 50mm, and when moving under spray regime, on macroporous plate, liquid layer is 10mm left and right, and every wet plate pressure drop is 250Pa.
Washing column plate is selected macroporous plate, has certain liquid layer on column plate, and closely, clean result is good, compares with spray column in gas-liquid two-phase contact, and liquid-gas ratio is low.
Macroporous plate, when tower diameter Φ 3600mm, is double overflow type column plate, and its fluid mobile length on column plate is 1.5m left and right, stable operation.If but exhaust gas volumn increase, tower diameter also increases, so stream is long, surpasses after 1.5m, and because gradient of liquid level on column plate is little, fluid just can not flow to whole column plate, has occurred dry plate phenomenon, has affected the operation of column plate, at this moment will adopt staged macroporous plate.
Summary of the invention
To be solved in the utility model is in the flue gas of discharging of existing coal burning flue gas desulfurization absorption tower, has carried more gypsum slurries secretly, causes the higher technical problem of PM2.5 of discharge.
In order to address the above problem, the utility model provides a kind of filtering module, it is characterized in that, comprises the demister, dedusting section and the spray-absorption section that connect successively from top to bottom, and demister top is provided with exhaust outlet; In dedusting section, be provided with washing column plate, column plate both sides are provided with downspout, and the downside of downspout is provided with riser plate, and a plurality of riseies are installed on riser plate, and riser is fixed on riser plate, and riser plate is fixed on Ta Bishang; Riser plate is communicated with washing liquid bath, and washing liquid bath is provided with fresh water (FW) entrance, and washing liquid bath is connected with the arrival end of washing liquid pump, and the port of export of washing liquid pump two is connected with washing liquid lines; Spray-absorption section is provided with smoke inlet; Spray-absorption section bottom is provided with reservoir, and reservoir is communicated with absorber portion spray equipment by circulating pump one.
Preferably, described riser plate is provided with riser, and washing column plate can be established 1～2, and the plate distance between washing column plate is 1500～2000mm; On each riser, be equipped with a riser cover plate.
Further, described riser cover plate is V-structure.
Preferably, described washing column plate is that aperture is the macroporous plate of Φ 15～25mm.
Further, described macroporous plate is double overflow macroporous plate, and the centre of double overflow macroporous plate is provided with liquid distributing groove, and the both sides of liquid distributing groove are respectively equipped with non-aperture area, the centre of each non-aperture area is provided with aperture area, and the layout of aperture area endoporus is equilateral triangle and distributes.
Further, described liquid distributing groove both sides are respectively equipped with weir one, and the height on weir one is 50mm; The outside of non-aperture area is respectively equipped with weir two, and the height on weir two is 10mm.
Further, described macroporous plate is staged macroporous plate, and the centre of staged macroporous plate is provided with liquid distributing groove, and the both sides of liquid distributing groove are respectively equipped with the aperture area of highly successively decreasing, and the Kong Jun in each aperture area is equilateral triangle and distributes.
Further, the both sides of described liquid distributing groove are respectively equipped with weir one, and the height on weir one is 50mm.
Further, the both sides of described liquid distributing groove are respectively equipped with 2 aperture area of highly successively decreasing, and aperture area, outside is than the low 50mm in inner side aperture area.
After the filtering module that flue gas provides by the utility model, the gypsum slurries of carrying secretly in flue gas, by fresh water (FW) solution washing, has reduced gypsum discharge capacity.
Accompanying drawing explanation
The structural representation of the filtering module that Fig. 1 provides for the utility model;
Fig. 2 is the front view of riser plate;
Fig. 3 is the front view of double overflow macroporous plate;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the front view of staged macroporous plate;
Fig. 6 is the top view of Fig. 5.
The specific embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment
As shown in Figure 1, the structural representation of the filtering module providing for the utility model, a kind of filtering module, is characterized in that, comprises the demister ME, dedusting section and the spray-absorption section SP that connect successively from top to bottom, demister ME top is provided with exhaust outlet BI; In dedusting section, be provided with washing column plate S101, column plate both sides are provided with downspout D, and the downside of downspout D is provided with riser plate T101, and a plurality of riser R101 are installed on riser plate, it is upper that riser R101 is fixed on riser plate T101, and riser plate T101 is fixed on Ta Bishang; Riser plate T101 is communicated with washing liquid bath V102, and washing liquid bath V102 is provided with fresh water (FW) entrance CI, and washing liquid bath V102 is connected with the arrival end of washing liquid pump P102, and the port of export of washing liquid pump two P102 is connected with washing liquid lines t1; Spray-absorption section SP is provided with smoke inlet AI; Spray-absorption section SP bottom is provided with reservoir V101, and reservoir V101 is communicated with the spray equipment of absorber portion SP by circulating pump one P101.Demister ME is provided with and supplements fresh water (FW) entrance DI.Riser plate T101 is provided with riser R101, is equipped with a riser cover plate CP101 on each riser R101, and washing column plate T101 can establish 1～2, and the plate distance between washing column plate is 1500～2000mm.Riser cover plate CP101 adopts V-structure, as shown in Figure 2.Washing column plate S101 is that aperture is the macroporous plate of Φ 15～25mm.Macroporous plate adopts double overflow macroporous plate or staged macroporous plate.As shown in Figure 3-4, centre is provided with liquid distributing groove C to the structure of double overflow macroporous plate, and the both sides of liquid distributing groove C are respectively equipped with non-aperture area B, and the centre of each non-aperture area B is provided with aperture area A, and the distribution of aperture area A endoporus is equilateral triangle and distributes.Liquid distributing groove C both sides are respectively equipped with weir one W1, and the height of weir one W1 is 50mm; The outside of non-aperture area B is respectively equipped with weir two W2, and the height of weir two W2 is 10mm.The structure of staged macroporous plate is as shown in Fig. 5-6, centre is provided with liquid distributing groove C equally, the both sides of liquid distributing groove C are respectively equipped with 2 aperture area A that highly successively decrease, and aperture area, outside A is than the low 50mm of aperture area, inner side A, and the layout of each aperture area A endoporus is equilateral triangle and distributes.The both sides of liquid distributing groove C are respectively equipped with weir one W1, and the height of weir one W1 is 50mm.
In operation is used, flue gas is entered behind absorption tower by smoke inlet AI, first through spray-absorption section SP, then by the riser R101 on riser plate T101, by absorber portion SP, enter washing column plate S101, while operating under spray regime, flue gas is by the sieve aperture on washing column plate S101, washing process aqueous solution liquid layer on washing column plate S101 is dispersed into fine droplets, realize with flue gas and carry out close contact, then flue gas continuation rising enters demister ME, and finally by exhaust outlet, BI is disposed to chimney.
Riser plate T101 separates spray-absorption section SP and washing column plate S101, make the washing process aqueous solution and the circulating absorption solution can each self-loopa, as shown in Figure 1, riser cover plate CP101 is set on riser plate T101, to avoid making leaking liquid amount increase because of liquid splash.
Washing used is fresh water (FW), by fresh water (FW) entrance CI, inject washing liquid bath V102, with washing liquid pump, two P102 are delivered to center on sieve plate, liquid influent distributing slot C, then overflow enters aperture area A, and after flue gas close contact, liquid flow to downspout D, by downspout D liquid, flow to riser plate T101, then flow into washing liquid bath V102.The solution concentration that maintains washing liquid bath V102 in service, supplementary fresh water (FW) and flushing water enter demister by supplementing fresh water (FW) entrance DI for this reason, then enter washing liquid bath V102, simultaneously from washing liquid bath V102, discharge a certain amount of solution to reservoir V101 at the bottom of tower, with the liquid level in reservoir V101 at the bottom of control tower.
Claims (9)
1. a filtering module, is characterized in that, comprises the demister (ME), dedusting section and the spray-absorption section (SP) that connect successively from top to bottom, and demister (ME) top is provided with exhaust outlet (BI); In dedusting section, be provided with washing column plate (S101), column plate both sides are provided with downspout (D), the downside of downspout (D) is provided with riser plate (T101), a plurality of riseies (R101) are installed on riser plate, it is upper that riser (R101) is fixed on riser plate (T101), and riser plate (T101) is fixed on Ta Bishang; Riser plate (T101) is communicated with washing liquid bath (V102), washing liquid bath (V102) is provided with fresh water (FW) entrance (CI), washing liquid bath (V102) is connected with the arrival end of washing liquid pump (P102), and the port of export of washing liquid pump two (P102) is connected with washing liquid lines (t1); Spray-absorption section (SP) is provided with smoke inlet (AI); Absorber portion (SP) bottom is provided with reservoir (V101), and reservoir (V101) is communicated with the spray equipment of absorber portion (SP) by circulating pump one (P101).
2. a kind of filtering module as claimed in claim 1, is characterized in that, described riser plate (T101) is provided with riser (R101); On each riser (R101), be equipped with a riser cover plate (CP101), washing column plate (T101) can be established 1～2, and the plate distance between washing column plate is 1500～2000mm.
3. a kind of filtering module as claimed in claim 2, is characterized in that, described riser cover plate (CP101) is V-structure.
4. a kind of filtering module as claimed in claim 1, is characterized in that, described washing column plate (S101) aperture is the macroporous plate of Φ 15～25mm.
5. a kind of filtering module as claimed in claim 4, it is characterized in that, described macroporous plate is double overflow macroporous plate, the centre of double overflow macroporous plate is provided with liquid distributing groove (C), the both sides of liquid distributing groove (C) are respectively equipped with non-aperture area (B), the centre of each non-aperture area (B) is provided with aperture area (A), and the layout of aperture area (A) endoporus is equilateral triangle and distributes.
6. a kind of filtering module as claimed in claim 5, is characterized in that, described liquid distributing groove (C) both sides are respectively equipped with weir one (W1), and the height of weir one (W1) is 50mm; The outside of non-aperture area (B) is respectively equipped with weir two (W2), and the height of weir two (W2) is 10mm.
7. a kind of filtering module as claimed in claim 4, it is characterized in that, described macroporous plate is staged macroporous plate, the centre of staged macroporous plate is provided with liquid distributing groove (C), the both sides of liquid distributing groove (C) are respectively equipped with the aperture area (A) of highly successively decreasing, and the layout of each aperture area (A) endoporus is provided with and is equilateral triangle distribution.
8. a kind of filtering module as claimed in claim 7, is characterized in that, the both sides of described liquid distributing groove (C) are respectively equipped with weir one (W1), and the height of weir one (W1) is 50mm.
9. a kind of filtering module as claimed in claim 7, is characterized in that, the both sides of described liquid distributing groove (C) are respectively equipped with 2 aperture area (A) of highly successively decreasing, and aperture area, outside (A) is than the low 50mm in inner side aperture area (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685690.XU CN203556245U (en) | 2013-11-01 | 2013-11-01 | Filtering module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685690.XU CN203556245U (en) | 2013-11-01 | 2013-11-01 | Filtering module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203556245U true CN203556245U (en) | 2014-04-23 |
Family
ID=50505999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685690.XU Expired - Fee Related CN203556245U (en) | 2013-11-01 | 2013-11-01 | Filtering module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203556245U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688580A (en) * | 2016-04-01 | 2016-06-22 | 中国大唐集团科学技术研究院有限公司 | Efficient dedusting rectifying device based on desulfurizing tower |
| CN107213725A (en) * | 2017-05-09 | 2017-09-29 | 黄春庭 | Crawler type air cleaner |
| CN115999317A (en) * | 2021-10-21 | 2023-04-25 | 中国石油化工股份有限公司 | Absorption stabilization process and temperature control method thereof |
-
2013
- 2013-11-01 CN CN201320685690.XU patent/CN203556245U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688580A (en) * | 2016-04-01 | 2016-06-22 | 中国大唐集团科学技术研究院有限公司 | Efficient dedusting rectifying device based on desulfurizing tower |
| CN107213725A (en) * | 2017-05-09 | 2017-09-29 | 黄春庭 | Crawler type air cleaner |
| CN115999317A (en) * | 2021-10-21 | 2023-04-25 | 中国石油化工股份有限公司 | Absorption stabilization process and temperature control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20191101 |