CN102512943A - Smoke desulfurization tower with smashing device - Google Patents
Smoke desulfurization tower with smashing device Download PDFInfo
- Publication number
- CN102512943A CN102512943A CN201110386109XA CN201110386109A CN102512943A CN 102512943 A CN102512943 A CN 102512943A CN 201110386109X A CN201110386109X A CN 201110386109XA CN 201110386109 A CN201110386109 A CN 201110386109A CN 102512943 A CN102512943 A CN 102512943A
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- Prior art keywords
- air
- tower
- tower body
- outlet
- distribution device
- 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.)
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 25
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 239000000779 smoke Substances 0.000 title abstract 6
- 230000003009 desulfurizing effect Effects 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- 239000002699 waste material Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 23
- 239000003546 flue gas Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 13
- 239000002956 ash Substances 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 230000003134 recirculating effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- -1 HCl Chemical compound 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The invention discloses a smoke desulfurization tower with a smashing device, which comprises a tower body, wherein the lower part of the tower body is provided with a sulfur waste outlet, a dust-poking mouth and a smoke inlet; the central part of the tower body is provided with a returning dust inlet, a desulfurizer inlet and a nozzle interface; the upper end of the tower body is provided with a smoke outlet; an exit necking section of the desulfurization tower is arranged between the sulfur waste outlet and the smoke inlet; 4 to 20 discrete air distributors are uniformly arranged on the internal slope of the necking section; each air distributor is provided with an air outlet inclined upwards; a smashing device is also arranged in the tower body and on the upper ends of the air distributors. As the air distributors are arranged on the necking section, and the smashing device is arranged on the upper ends of the distributors, the falling dust in the tower is blown by the air distributors to mix with the smoke again after being smashed by the smashing device. The air distributors not only can blow the dust, but also improve smooth distribution in the tower through the action of air flow and enhance the desulfurization efficiency.
Description
Technical field
The invention belongs to technical field of chemical, specifically is a kind of desulfurizing tower that flue gas is handled that is used for.
Background technology
Pernicious gases such as the sulfur dioxide in flue gas that produces when fire coal, fuel oil, combustion gas, nitrogen oxide enter atmosphere, cause acid rain, destroy ecological environment, influence the healthy of people.To the more strict control control criterion of the relevant environmental regulation of China to the permission concentration of emission proposition of sulfur dioxide in flue gas, nitrogen oxide, various flue gas desulfurization technique method and apparatus arise at the historic moment.
Coal-burning sulfur dioxide control method can be divided three classes: desulfurization and burning back desulfurization (flue gas desulfurization) in desulfurization before the burning, the burning, wherein flue gas desulfurization is considered to control SO
2Pollute valid approach.With regard to flue gas desulfurization technique, the present flue gas desulfurization technique of being used widely and having developed mainly contains 4 kinds:
Wet type limestone/gypsum absorption process (Wet-FGD)
Dry spraying dry decontamination technology (SDA)
Humidification water activation method (LIFAC) behind the in-furnace calcium spraying
Recirculating fluidized bed flue gas purifying technique (CFB-FGD)
The recirculating fluidized bed flue gas purifying technique is to be the basis with the recirculating fluidized bed principle, through the repeatedly recirculation of absorbent, the time of contact of extension of absorbent and flue gas, has improved the utilization rate of absorbent greatly.The recirculating fluidized bed flue gas purifying technique will add the Ca (OH) of desulfurizing tower
2SO in powder and the flue gas
2And other compositions such as SO in the flue gas
3, sour gas such as HCl, HF fully contact mixing, the atomized water that the desulfurizing tower porch sprays into reduces flue-gas temperature on the one hand, guarantees optimum reaction condition, on the other hand at Ca (OH)
2The surface of particle forms liquid phase.Ca (OH) in the desulfurizing tower
2Powder, flue gas and the moisture that sprays into fully mix under suspended state, and through excessive Ca (OH)
2Powder is repeatedly circulation in desulfurizing tower, is under 1.3 ~ 1.6 conditions at appropriate C a/S ratio, makes SO in the flue gas
2, SO
3Absorbed more fully Deng the sour gas physical efficiency, realized the efficient utilization of high-efficiency desulfurization and desulfurizing agent.
Desulfurizing tower directly influences the desulfuration efficiency of a whole set of desulphurization system as the critical component of recirculating fluidized bed flue gas purifying technique.In order to guarantee the abundant fluidisation and the suspension of desulfurizing agent and flying dust in the desulfurizing tower; Generally one or several ash discharging hole is set in the desulfurizing tower bottom; To discharge the bigger lime-ash of particle; Thereby form flow field preferably, be beneficial to the desulfurizing tower flow field and be evenly distributed, thereby desulfurizing agent and fly ash granule can fully mix in desulfurizing tower with flue gas.Practice result shows that the bottom of desulfurizing tower is provided with push-pull valve, and regularly carries out scarfing cinder at the bottom of the tower, help reducing drag losses, and desulfurized effect makes moderate progress.The defective that existing this desulfurizing tower bottom adds the design existence of push-pull valve has: the boiler oxygen content increases; Defectives such as flowing field stability difference and flow process distribution are asymmetric.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned prior art, and provide a kind of flow field in tower of stably desulphurizing better, further reduce flue gas flow through in the desulfurizing tower drag losses and improve the desulfurizing tower load adaptability can circulating fluid bed flue gas desulfurization tower.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of fume desulfurizing tower with reducing mechanism, comprise tower body, and be provided with desulfurization slag outlet, ash poking mouth and gas approach in the bottom of tower body; Be provided with returning charge ash inlet at the middle part of tower body; Desulfurizing agent inlet and nozzle interface are provided with exhanst gas outlet in the upper end of tower body, are desulfurizing tower outlet reducing section between described desulfurization slag outlet and the gas approach; It is characterized in that: on the inner chamfer of this reducing section, be provided with 4～20 discrete air-distribution devices uniformly; Said air-distribution device has the air outlet that wind direction is tilted to, and in described tower body, also is provided with reducing mechanism, disguises the upper end that crushing device is arranged on air-distribution device; Described reducing mechanism comprises rotating shaft and is arranged on the pulverizing blade in the rotating shaft that this pulverizing blade is the screw type blade.
Described air-distribution device comprises cloth wind chamber and perforated distributor, on cloth wind chamber, is connected with airduct, and described air outlet is arranged on the perforated distributor.
Described air-distribution device also comprises canvas layer, and canvas layer is arranged on the perforated distributor inboard.
The present invention is provided with air-distribution device in the reducing section; And reducing mechanism is installed in air-distribution device upper end, thus the flying dust that falls in the tower is blown afloat and mixes once more with flue gas through air-distribution device again after reducing mechanism is pulverized earlier, air-distribution device not only can blow afloat flying dust; Can also be through smooth distribution the in the improved effect tower of air-flow; Improve desulfuration efficiency, compared with prior art, have following advantage:
(1) adapts to desulfurizing agent than other and change the treating method that causes that the desulphurization system resistance increases, more low power consuming is arranged;
(2) improve smooth distribution the in the desulfurizing tower, imitate desulfurization thereby improve;
(3) increase the load variations scope that desulfurizing tower causes adapting to different desulfurizing agents, improve adaptability boiler.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of desulfurizing tower reducing section of the present invention.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is an air-distribution device structural representation of the present invention.
Wherein: 1, tower body, 2, the desulfurization slag outlet, 3, the ash poking mouth, 4, gas approach, 5, the desulfurizing agent inlet, 6, returning charge ash inlet; 7, manhole, 8, nozzle interface, 9, exhanst gas outlet, 10, air-distribution device, 11, cloth wind chamber, 12, airduct; 13, air distribution plate, 14, canvas layer, 15, band steel; 16, bolt, 17, angle steel, 18, Ta Bi, 19, rotating shaft, 20, pulverize blade.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1, shown in Figure 2; A kind of fume desulfurizing tower with reducing mechanism of the present invention comprises the tower body 1 that is made up of smoke-box, spurt chamber and desulfurization chamber, is provided with desulfurization slag outlet 2, ash poking mouth 3 and gas approach 4 in the bottom of tower body 1; Be provided with returning charge ash inlet 6 at the middle part of tower body 1, desulfurizing agent inlet 5 and nozzle interface 8 are provided with exhanst gas outlet 9 in the upper end of tower body 1; Be desulfurizing tower outlet reducing section between desulfurization slag outlet 2 and the gas approach 4, the reducing section is square shape circularly all day long, on the inner circular awl inclined-plane of reducing section, is provided with air-distribution device 10 uniformly; The quantity of air-distribution device 10 is 4～20; Air-distribution device 10 has the air outlet that wind direction is tilted to, and in tower body, also is provided with reducing mechanism, disguises the upper end that crushing device is arranged on air-distribution device 10; Reducing mechanism comprises rotating shaft 19 and is arranged on the pulverizing blade 20 in the rotating shaft that this pulverizes blade 20 is the screw type blade.Reducing mechanism leans on and makes the spiral vane rotation that power is provided under the flue gas effect, need not to increase additional electric motors and drives.
Air-distribution device comprises cloth wind chamber 11, canvas layer 14 and perforated distributor 13; On cloth wind chamber 11, be connected with airduct 12; Canvas layer 14 is arranged on perforated distributor 13 inboards, and air outlet is arranged on the perforated distributor 13, and the cloth bag material of the common sack cleaner of canvas layer 14 usefulness gets final product; Canvas layer 14 adopts band steel 15 and bolt 16 to be fixed together with air distribution plate 13; Be fixed on the tower wall 18 through angle steel 17 at last, between angle steel 17, tower wall 18 and canvas layer, form cloth wind chamber 11, see Fig. 5.In the present embodiment, the number of air-distribution device 10 is 8, wherein 4 little, 4 are big, referring to Fig. 3 and Fig. 4.
Claims (3)
1. the fume desulfurizing tower with reducing mechanism comprises tower body, is provided with desulfurization slag outlet, ash poking mouth and gas approach in the bottom of tower body; Be provided with returning charge ash inlet at the middle part of tower body; Desulfurizing agent inlet and nozzle interface are provided with exhanst gas outlet in the upper end of tower body, are desulfurizing tower outlet reducing section between described desulfurization slag outlet and the gas approach; It is characterized in that: on the inner chamfer of this reducing section, be provided with 4～20 discrete air-distribution devices uniformly; Said air-distribution device has the air outlet that wind direction is tilted to, and in described tower body, also is provided with reducing mechanism, disguises the upper end that crushing device is arranged on air-distribution device; Described reducing mechanism comprises rotating shaft and is arranged on the pulverizing blade in the rotating shaft that this pulverizing blade is the screw type blade.
2. the fume desulfurizing tower with reducing mechanism according to claim 1 is characterized in that: described air-distribution device comprises cloth wind chamber and cloth wind porous plate, on cloth wind chamber, is connected with airduct, and described air outlet is arranged on the porous plate.
3. the fume desulfurizing tower with reducing mechanism according to claim 1 and 2 is characterized in that: described air-distribution device also comprises canvas layer, and this canvas layer is arranged on the perforated distributor inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110386109.XA CN102512943B (en) | 2011-11-29 | 2011-11-29 | Smoke desulfurization tower with smashing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110386109.XA CN102512943B (en) | 2011-11-29 | 2011-11-29 | Smoke desulfurization tower with smashing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102512943A true CN102512943A (en) | 2012-06-27 |
| CN102512943B CN102512943B (en) | 2014-08-06 |
Family
ID=46284163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110386109.XA Active CN102512943B (en) | 2011-11-29 | 2011-11-29 | Smoke desulfurization tower with smashing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102512943B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786431A (en) * | 2018-08-21 | 2018-11-13 | 威海市正大环保设备股份有限公司 | Multi-point injection anti-settling dry desulfurizing tower |
| CN109224771A (en) * | 2018-08-23 | 2019-01-18 | 安徽长江钢铁股份有限公司 | A kind of desulfurizing tower bottom sender device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200954432Y (en) * | 2006-09-04 | 2007-10-03 | 北京科技大学 | Composite agitating smoke desulfurizing apparatus |
| CN201404765Y (en) * | 2009-05-13 | 2010-02-17 | 黄震 | Low-resistance type circulating fluidized bed flue gas desulfurization |
| CN101862587A (en) * | 2010-05-10 | 2010-10-20 | 上海电气石川岛电站环保工程有限公司 | Wet flue-gas desulfurization tower based on baffle air distribution |
| CN202315698U (en) * | 2011-11-29 | 2012-07-11 | 南京龙玖环境工程有限公司 | Flue gas desulfurizing tower with crushing device |
-
2011
- 2011-11-29 CN CN201110386109.XA patent/CN102512943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200954432Y (en) * | 2006-09-04 | 2007-10-03 | 北京科技大学 | Composite agitating smoke desulfurizing apparatus |
| CN201404765Y (en) * | 2009-05-13 | 2010-02-17 | 黄震 | Low-resistance type circulating fluidized bed flue gas desulfurization |
| CN101862587A (en) * | 2010-05-10 | 2010-10-20 | 上海电气石川岛电站环保工程有限公司 | Wet flue-gas desulfurization tower based on baffle air distribution |
| CN202315698U (en) * | 2011-11-29 | 2012-07-11 | 南京龙玖环境工程有限公司 | Flue gas desulfurizing tower with crushing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786431A (en) * | 2018-08-21 | 2018-11-13 | 威海市正大环保设备股份有限公司 | Multi-point injection anti-settling dry desulfurizing tower |
| CN109224771A (en) * | 2018-08-23 | 2019-01-18 | 安徽长江钢铁股份有限公司 | A kind of desulfurizing tower bottom sender device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102512943B (en) | 2014-08-06 |
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Effective date of registration: 20141021 Address after: New town Yangzhong city Jiangsu province 212211 Zhenjiang New Village Patentee after: Jiangsu Environmental Protection Technology Co., Ltd. Address before: 210029, room 2602, Jinfeng tower, 19 Central Road, Gulou District, Jiangsu, Nanjing Patentee before: Nanjing Longjiu Environmental Engineering Co., Ltd. |
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Effective date of registration: 20170301 Address after: New new town road Yangzhong city 212211 Jiangsu city of Zhenjiang province No. 1 Patentee after: Jiangsu Jiaxin Environmental Protection Engineering Co. Ltd. Address before: New town Yangzhong city Jiangsu province 212211 Zhenjiang New Village Patentee before: Jiangsu Environmental Protection Technology Co., Ltd. |
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Denomination of invention: Smoke desulfurization tower with smashing device Effective date of registration: 20191226 Granted publication date: 20140806 Pledgee: Jiangsu Credit Financing Guarantee Co., Ltd. Pledgor: Jiangsu Jiaxin Environmental Protection Engineering Co. Ltd. Registration number: Y2019320000404 |
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Date of cancellation: 20201203 Granted publication date: 20140806 Pledgee: Jiangsu Credit Financing Guarantee Co.,Ltd. Pledgor: JIANGSU JIAXIN ENVIRONMENTAL ENGINEERING Co.,Ltd. Registration number: Y2019320000404 |