CN204412025U - A kind of lower resistance, biabsorption efficient desulfurizing tower - Google Patents
A kind of lower resistance, biabsorption efficient desulfurizing tower Download PDFInfo
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- CN204412025U CN204412025U CN201520022044.4U CN201520022044U CN204412025U CN 204412025 U CN204412025 U CN 204412025U CN 201520022044 U CN201520022044 U CN 201520022044U CN 204412025 U CN204412025 U CN 204412025U
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- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 90
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 238000005507 spraying Methods 0.000 claims abstract description 43
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 6
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 17
- 240000008042 Zea mays Species 0.000 abstract 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 abstract 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 abstract 1
- 235000005822 corn Nutrition 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 description 25
- 230000002745 absorbent Effects 0.000 description 20
- 238000006477 desulfuration reaction Methods 0.000 description 13
- 230000023556 desulfurization Effects 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011575 calcium Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A kind of lower resistance, biabsorption efficient desulfurizing tower, comprise first grade absorption tower, two-level absorption tower, spraying layer, slurry circulating pump, agitator, oxidation fan, it is characterized in that: first grade absorption tower is cylinder-shaped, inside establish one-level spraying layer and first grade absorption tower slurry pool, barrel below one-level spraying layer arranges smoke inlet, one-level spraying layer is connected to first grade absorption tower slurry pool at the bottom of tower by pipeline and one-level slurry circulating pump, is provided with agitator and one-level slurries excavationg pump at the bottom of tower; Two-level absorption tower is cylinder-shaped, inside establish secondary spraying layer and two-level absorption tower slurry pool, barrel below secondary spraying layer arranges flue gas Horizontal Exit, and secondary spraying layer is connected to two-level absorption tower slurry pool at the bottom of tower by pipeline and secondary slurry circulating pump, is provided with secondary slurries excavationg pump at the bottom of tower; First grade absorption tower arranges double tower with the top of two-level absorption tower and is communicated with flue.There is lower resistance, high-selenium corn efficiency, the advantage such as stable.
Description
Technical field
The utility model belongs to industrial waste gas purifying field, relates to wet desulphurization applied technical field, is specifically related to a kind of lower resistance, biabsorption efficient desulfurizing tower.
Background technology
Wet desulphurization is China's current application the most effective fume desulphurization method at most, but along with power plant uses the significantly raising of coal sulfur content, make original desulfurizing tower cannot meet qualified discharge requirement, simultaneously the proposition of " near-zero release " concept, more make desulfurization need higher efficiency.
In order to tackle this situation, need rebuild or transform original desulphurization system, to reach higher desulfuration efficiency.
Summary of the invention
The purpose of this utility model is design a kind of lower resistance, biabsorption efficient desulfurizing tower, under the prerequisite not increasing SR, further raising desulfuration efficiency, arranges horizontal exhanst gas outlet and demister more flexibly, is convenient to adopt single absorbent or different two kinds of absorbents.
The technical solution of the utility model is, a kind of lower resistance, biabsorption efficient desulfurizing tower, comprises first grade absorption tower, two-level absorption tower, one-level spraying layer, secondary spraying layer, one-level slurry circulating pump, secondary slurry circulating pump, agitator, oxidation fan,
First grade absorption tower is cylinder-shaped, inside establish one-level spraying layer and first grade absorption tower slurry pool, barrel below one-level spraying layer arranges smoke inlet, one-level spraying layer is connected to first grade absorption tower slurry pool at the bottom of tower by pipeline and one-level slurry circulating pump, is provided with agitator and one-level slurries excavationg pump at the bottom of tower;
Two-level absorption tower is cylinder-shaped, inside establish secondary spraying layer and two-level absorption tower slurry pool, barrel below secondary spraying layer arranges flue gas Horizontal Exit, and secondary spraying layer is connected to two-level absorption tower slurry pool at the bottom of tower by pipeline and secondary slurry circulating pump, is provided with secondary slurries excavationg pump at the bottom of tower;
First grade absorption tower arranges double tower with the top of two-level absorption tower and is communicated with flue.
Lower resistance as above, biabsorption efficient desulfurizing tower, be provided with Venturi rod layer below the one-level spraying layer of first grade absorption tower.
Lower resistance as above, biabsorption efficient desulfurizing tower, arrange exhanst gas outlet deflector and exhanst gas outlet demister in the flue gas Horizontal Exit section of two-level absorption tower.
Lower resistance as above, biabsorption efficient desulfurizing tower, be communicated with in flue at double tower and be provided with connection flue deflector.
Function of the present utility model is,
Connection flue is set between first grade absorption tower and two-level absorption tower, first grade absorption tower adopts flue gas, absorbent counter current contacting mode, two-level absorption tower adopts flue gas, absorbent co-current contact mode, compared with traditional double tower double circulation desulphurization technology, effectively reduces desulphurization system resistance.Causing flue gas at I and II absorption tower flow field skewness to prevent being communicated with turning back of flue, in connection flue, being provided with deflector, simultaneously in order to strengthen the desulphurizing ability of first grade absorption tower, Venturi rod layer being set in first grade absorption tower.
Compared with traditional double tower double circulation desulphurization technology, effectively reduce desulphurization system resistance.Causing flue gas at I and II absorption tower flow field skewness to prevent being communicated with turning back of flue, simultaneously in order to strengthen the desulphurizing ability of first grade absorption tower, in connection flue, being provided with deflector,
Adsorption tower smoke outlet adopts Horizontal Exit mode, and is arranged on slurries top, absorption tower, with the time of staying of this prolong smoke in twice absorption tower, can more effectively utilize two-level absorption tower to arrange spraying layer simultaneously.Exhanst gas outlet horizontal segment arranges demister, in order to ensure demister performance, arranges deflector at adsorption tower smoke Horizontal Exit, is to flue gas by vertical flue gas rectification perpendicular to the level of demister.
One-level spraying layer and secondary spraying layer are individually connected to tower prime cement liquid pool by pipeline and slush pump, the application same absorbent agent of first grade absorption tower, two-level absorption tower alternative or different absorbents.When first grade absorption tower and two-level absorption tower adopt different absorbents, I and II absorption tower adopts independently slurries discharge and mend slurry system, and selects to arrange oxidative system and other equipment according to selected absorbent; When two-stage absorption tower adopts same absorbent agent, Liang Getanei stock tank district is communicated with by arranging pipeline by I and II absorption tower.
In the technical program, during the employing different absorbents of I and II absorption tower, according to the independent control ph of the difference of the absorbent selected, to make the removal efficiency of I and II spraying layer control separately, economic optimum operational mode can be realized.When selecting same absorbent agent, control while the connecting pipeline by setting up Liang Tanei stock tank district realizes two-stage tower, its equivalent adds in the multilayer of spraying layer; When adopting same absorbent agent simultaneously, also by two-step evolution, adopt high low ph value set-up mode, realize effective separation and the reinforcement of the processes such as absorbent dissolving, reaction, crystallization.
Beneficial effect: compared with prior art, the utility model has the following advantages: two-stage absorption tower design effectively improves desulfuration efficiency; SR is not increased while raising the efficiency; Absorbent occupation mode more flexibly, comprises two-stage absorption biabsorption agent and two-stage absorbs single absorbent; Horizontal exhanst gas outlet and demister arrangement more flexibly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of lower resistance of the present utility model, biabsorption efficient desulfurizing tower
In figure, 1-first grade absorption tower 2-two-level absorption tower 3-one-level spraying layer 4-secondary spraying layer 5-first grade absorption tower slurry pool 6-two-level absorption tower slurry pool 7-one-level slurry circulating pump 8-secondary slurry circulating pump 9-one-level slurries excavationg pump 10-secondary slurries excavationg pump 11-smoke inlet 12-Venturi rod layer 13-double tower is communicated with flue 14-and is communicated with flue deflector 15-exhanst gas outlet 16-exhanst gas outlet demister 17-exhanst gas outlet deflector 18-agitator
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As shown in Figure 1, a kind of lower resistance, biabsorption efficient desulfurizing tower, comprise first grade absorption tower, two-level absorption tower, one-level spraying layer, secondary spraying layer, one-level slurry circulating pump, secondary slurry circulating pump, agitator, oxidation fan,
First grade absorption tower 1 is in cylinder-shaped, inside establish one-level spraying layer 3 and first grade absorption tower slurry pool 5, barrel below one-level spraying layer arranges smoke inlet 11 and Venturi rod layer 12, one-level spraying layer is connected to first grade absorption tower slurry pool at the bottom of tower by pipeline and one-level slurry circulating pump 7, is provided with agitator 18 and one-level slurries excavationg pump 9 at the bottom of tower;
Two-level absorption tower 2 is in cylinder-shaped, inside establish secondary spraying layer 4 and two-level absorption tower slurry pool 6, barrel below secondary spraying layer arranges flue gas Horizontal Exit 15, in flue gas Horizontal Exit section, exhanst gas outlet deflector 17 and exhanst gas outlet demister 16 are set, secondary spraying layer is connected to two-level absorption tower slurry pool at the bottom of tower by pipeline and secondary slurry circulating pump 8, is provided with secondary slurries excavationg pump 10 at the bottom of tower;
First grade absorption tower and the top of two-level absorption tower arrange double tower and are communicated with flue 13, are communicated with in flue to be provided with to be communicated with flue deflector 14 at double tower.
As shown in Figure 1, illustrate embodiment when adopting different absorbents, raw flue gas enters first grade absorption tower 1 by smoke inlet 11, and after being communicated with flue 13, enter two-level absorption tower 2, flue gas discharges desulphurization system by exhanst gas outlet 15.Ca (OH) is adopted in first grade absorption tower 1
2as absorbent, absorbent replenishes first grade absorption tower stock tank 5, and is promoted to one-level spraying layer 3 through one-level slurry circulating pump 7, turns back to first grade absorption tower stock tank 5 after completing desulfurization; Adopt NaOH as absorbent in two-level absorption tower 2, absorbent replenishes two-level absorption tower stock tank 6, and is promoted to one-level spraying layer 4 through secondary slurry circulating pump 8, turns back to two-level absorption tower stock tank 6 after completing desulfurization.Owing to adopting Ca (OH) in first grade absorption tower 1
2, agitator 18 and oxidation fan need be set, to prevent from precipitating and ensureing effective generation of desulfurated plaster slurries.Ca (OH) is adopted in first grade absorption tower
2, absorb most SO
2, in order to reach the effect of high-efficiency desulfurization, the NaOH that two-level absorption tower 2 adopts absorption efficiency higher, by the SO that first grade absorption tower 1 does not remove
2carry out deep purifying, the flue gas after purification discharges desulphurization system through exhanst gas outlet 15 after drop is carried in exhanst gas outlet demister 16 removal.This kind of biabsorption agent mode effectively can improve desulfuration efficiency, reduces the generation of amount of gypsum simultaneously.
As shown in Figure 1, illustrate the embodiment adopting same absorbent agent, the setting of high low ph value, raw flue gas enters first grade absorption tower 1 by smoke inlet 11, and after being communicated with flue 13, enter two-level absorption tower 2, flue gas discharges desulphurization system by exhanst gas outlet 15.First grade absorption tower 1 and two-level absorption tower 2 all adopt Ca (OH)
2as absorbent, absorbent is promoted to I and II spraying layer 3,4 respectively through I and II slurry circulating pump 7,8, turns back to I and II absorption tower stock tank 5,6 after completing desulfurization respectively.In first grade absorption tower 1, loop slurry pH value controls at 4-5, and low ph value is conducive to the generation of the dissolving of lime stone, the complete oxidation of calcium sulfite and gypsum, improves the utilization rate of lime stone; In two-level absorption tower 2, loop slurry pH value controls at 5.5-6.5, and higher pH value is conducive to obtaining higher desulfuration efficiency.
In sum, this equipment effectively can be applicable to the scene application that sulphur coal flue gas desulfurization and desulfuration efficiency cannot be up to standard.System has high desulfurization efficiency, does not simultaneously increase SR, simultaneously absorbent occupation mode flexibly, can adapt to more cross operating mode.
Claims (4)
1. lower resistance, a biabsorption efficient desulfurizing tower, comprises first grade absorption tower, two-level absorption tower, one-level spraying layer, secondary spraying layer, one-level slurry circulating pump, secondary slurry circulating pump, agitator, oxidation fan, it is characterized in that,
First grade absorption tower is cylinder-shaped, inside establish one-level spraying layer and first grade absorption tower slurry pool, barrel below one-level spraying layer arranges smoke inlet, one-level spraying layer is connected to first grade absorption tower slurry pool at the bottom of tower by pipeline and one-level slurry circulating pump, is provided with agitator and one-level slurries excavationg pump at the bottom of tower;
Two-level absorption tower is cylinder-shaped, inside establish secondary spraying layer and two-level absorption tower slurry pool, barrel below secondary spraying layer arranges flue gas Horizontal Exit, and secondary spraying layer is connected to two-level absorption tower slurry pool at the bottom of tower by pipeline and secondary slurry circulating pump, is provided with secondary slurries excavationg pump at the bottom of tower;
First grade absorption tower arranges double tower with the top of two-level absorption tower and is communicated with flue.
2. a kind of lower resistance as claimed in claim 1, biabsorption efficient desulfurizing tower, is characterized in that, below the one-level spraying layer of first grade absorption tower, be provided with Venturi rod layer.
3. a kind of lower resistance as claimed in claim 1, biabsorption efficient desulfurizing tower, is characterized in that, arranges exhanst gas outlet deflector and exhanst gas outlet demister in the flue gas Horizontal Exit section of two-level absorption tower.
4. a kind of lower resistance as claimed in claim 1, biabsorption efficient desulfurizing tower, is characterized in that, is communicated with in flue to be provided with to be communicated with flue deflector at double tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022044.4U CN204412025U (en) | 2015-01-14 | 2015-01-14 | A kind of lower resistance, biabsorption efficient desulfurizing tower |
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| CN201520022044.4U CN204412025U (en) | 2015-01-14 | 2015-01-14 | A kind of lower resistance, biabsorption efficient desulfurizing tower |
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| CN204412025U true CN204412025U (en) | 2015-06-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076104A (en) * | 2016-08-23 | 2016-11-09 | 无锡西玖环保科技有限公司 | A kind of dual-purpose exhaust gas washing tower |
| CN106984166A (en) * | 2015-03-17 | 2017-07-28 | 孙厚杰 | Wet flue gas desulfurization absorption tower |
| CN108295637A (en) * | 2018-03-07 | 2018-07-20 | 北京北清环科环境工程有限公司 | The minimum discharge system and method for de-suphur of kiln fume, dedusting demisting |
| CN109126441A (en) * | 2018-08-08 | 2019-01-04 | 江苏吉能达环境能源科技有限公司 | A kind of intelligent flue gas denitration device |
| CN110368799A (en) * | 2019-07-30 | 2019-10-25 | 福建龙净脱硫脱硝工程有限公司 | A kind of semidry process desulfurizer and method |
| CN111359381A (en) * | 2020-04-13 | 2020-07-03 | 华能国际电力股份有限公司 | Wet desulphurization flue gas diversion efficiency-improving device and method |
-
2015
- 2015-01-14 CN CN201520022044.4U patent/CN204412025U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984166A (en) * | 2015-03-17 | 2017-07-28 | 孙厚杰 | Wet flue gas desulfurization absorption tower |
| CN106076104A (en) * | 2016-08-23 | 2016-11-09 | 无锡西玖环保科技有限公司 | A kind of dual-purpose exhaust gas washing tower |
| CN106076104B (en) * | 2016-08-23 | 2018-07-06 | 无锡西玖环保科技有限公司 | A kind of dual-purpose exhaust gas washing tower |
| CN108295637A (en) * | 2018-03-07 | 2018-07-20 | 北京北清环科环境工程有限公司 | The minimum discharge system and method for de-suphur of kiln fume, dedusting demisting |
| CN109126441A (en) * | 2018-08-08 | 2019-01-04 | 江苏吉能达环境能源科技有限公司 | A kind of intelligent flue gas denitration device |
| CN110368799A (en) * | 2019-07-30 | 2019-10-25 | 福建龙净脱硫脱硝工程有限公司 | A kind of semidry process desulfurizer and method |
| CN110368799B (en) * | 2019-07-30 | 2022-05-27 | 福建龙净脱硫脱硝工程有限公司 | Semi-dry desulfurization device and method |
| CN111359381A (en) * | 2020-04-13 | 2020-07-03 | 华能国际电力股份有限公司 | Wet desulphurization flue gas diversion efficiency-improving device and method |
| CN111359381B (en) * | 2020-04-13 | 2024-06-04 | 华能国际电力股份有限公司 | Wet desulfurization flue gas diversion efficiency improving device and method |
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