CN102512943B - Smoke desulfurization tower with smashing device - Google Patents
Smoke desulfurization tower with smashing device Download PDFInfo
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- CN102512943B CN102512943B CN201110386109.XA CN201110386109A CN102512943B CN 102512943 B CN102512943 B CN 102512943B CN 201110386109 A CN201110386109 A CN 201110386109A CN 102512943 B CN102512943 B CN 102512943B
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- air
- tower
- tower body
- outlet
- distribution device
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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 description 7
- 230000003009 desulfurizing effect Effects 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 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
- 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 22
- 239000003546 flue gas Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 14
- 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
- 239000011575 calcium Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 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
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 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
- 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
- 230000015572 biosynthetic process 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
- 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
- 238000009434 installation Methods 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
- 239000007921 spray Substances 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 a kind of desulfurizing tower of processing for flue gas.
Background technology
The pernicious gases such as the sulfur dioxide in flue gas producing when fire coal, fuel oil, combustion gas, nitrogen oxide enter atmosphere, cause acid rain, destroy ecological environment, affect the healthy of people.The more strict control control criterion permission concentration of emission of sulfur dioxide in flue gas, nitrogen oxide being proposed for the relevant environmental regulation of China, 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 (flue gas desulfurization) after desulfurization and burning in desulfurization before burning, burning, wherein flue gas desulfurization is considered to control SO
2pollute the most effective approach.With regard to flue gas desulfurization technique, the current flue gas desulfurization technique of being used widely and having developed mainly contains 4 kinds:
Wet Limestone/gypsum absorption process (Wet-FGD)
Dry spraying dry decontamination technique (SDA)
Humidification water activation method (LIFAC) after in-furnace calcium spraying
Recirculating fluidized bed flue gas purifying technique (CFB-FGD)
Recirculating fluidized bed flue gas purifying technique, is to take recirculating fluidized bed principle as basis, by the repeatedly recirculation of absorbent, the time of contact of extension of absorbent and flue gas, has greatly improved the utilization rate of absorbent.Recirculating fluidized bed flue gas purifying technique will add the Ca (OH) of desulfurizing tower
2sO in powder and flue gas
2and other compositions in flue gas are as SO
3, the sour gas such as HCl, HF fully contacts mixing, the atomized water that 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 desulfurizing tower
2powder, flue gas and the moisture spraying into fully mix under suspended state, and by excessive Ca (OH)
2powder is repeatedly circulation in desulfurizing tower, at suitable Ca/S ratio, is under 1.3 ~ 1.6 conditions, makes SO in flue gas
2, SO
3deng sour gas physical efficiency, absorbed more fully, realized the efficient utilization of high-efficiency desulfurization and desulfurizing agent.
Desulfurizing tower, as the critical component of recirculating fluidized bed flue gas purifying technique, directly affects the desulfuration efficiency of a whole set of desulphurization system.In order to guarantee abundant fluidisation and the suspension of desulfurizing agent and flying dust in desulfurizing tower, generally in desulfurizing tower bottom, one or several ash discharging hole is set, to discharge the larger lime-ash of particle, thereby form good flow field, be beneficial to 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, the bottom of desulfurizing tower arranges push-pull valve, and regularly carries out scarfing cinder at the bottom of tower, be conducive to reduce drag losses, and desulfurized effect makes moderate progress.The defect that existing this desulfurizing tower bottom adds the design existence of push-pull valve has: boiler oxygen content increases; Poor and the flow process of the flowing field stability defect such as asymmetric that distributes.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and a kind of flow field in tower of stably desulphurizing is better provided, further reduces the drag losses of smoke gas flow in desulfurizing tower and improve the circulating fluid bed flue gas desulfurization tower of desulfurizing tower load adaptivity performance.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of fume desulfurizing tower with reducing mechanism, comprise tower body, in the bottom of tower body, be provided with desulfurization slag outlet, ash poking mouth and gas approach, at the middle part of tower body, be provided with returning charge ash entrance, desulfurizing agent entrance and nozzle interface, upper end at tower body is provided with exhanst gas outlet, it between described desulfurization slag outlet and gas approach, is desulfurizing tower outlet reducing section, it is characterized in that: in the inner chamfer of this reducing section, be provided with uniformly 4～20 discrete air-distribution devices, described air-distribution device has the air outlet that wind direction is tilted to, in described tower body, be also provided with reducing mechanism, disguise crushing device and be arranged on the upper end of air-distribution device, described reducing mechanism comprises rotating shaft and is arranged on the crushing vane in rotating shaft, this crushing vane is 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 perforated distributor.
Described air-distribution device also comprises canvas layer, and canvas layer is arranged on perforated distributor inner side.
The present invention arranges air-distribution device in reducing section, and at air-distribution device upper end installation reducing mechanism, thereby the flying dust falling in tower is first blown afloat and again mixed with flue gas through air-distribution device again after reducing mechanism is pulverized, air-distribution device not only can blow afloat flying dust, can also be by smooth distribution in the improved effect tower of air-flow, improve desulfuration efficiency, compared with prior art, tool has the following advantages:
(1) compared with other, adapt to desulfurizing agent and change the treating method that causes desulphurization system resistance increment, have more low power consuming;
(2) improve smooth distribution in desulfurizing tower, thereby carry high-efficiency desulfurization;
(3) increase the load variations scope that desulfurizing tower causes adapting to different desulfurizing agents, improve the adaptability to boiler.
Accompanying drawing explanation
Fig. 1 is 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 top view of Fig. 3.
Fig. 5 is air-distribution device structural representation of the present invention.
Wherein: 1, tower body, 2, desulfurization slag outlet, 3, ash poking mouth, 4, gas approach, 5, desulfurizing agent entrance, 6, returning charge ash entrance, 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, crushing vane.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1, shown in Fig. 2, a kind of fume desulfurizing tower with reducing mechanism of the present invention, comprise by smoke-box, the tower body 1 of chamber and the desulfurization chamber formation of spurting, in the bottom of tower body 1, be provided with desulfurization slag outlet 2, ash poking mouth 3 and gas approach 4, at the middle part of tower body 1, be provided with returning charge ash entrance 6, desulfurizing agent entrance 5 and nozzle interface 8, in the upper end of tower body 1, be provided with exhanst gas outlet 9, it between desulfurization slag outlet 2 and gas approach 4, is desulfurizing tower outlet reducing section, reducing section is square shape circularly all day long, on the inner circular cone inclined-plane of reducing section, be provided with uniformly air-distribution device 10, the quantity of air-distribution device 10 is 4～20, air-distribution device 10 has the air outlet that wind direction is tilted to, in tower body, be also provided with reducing mechanism, disguise crushing device and be arranged on the upper end of air-distribution device 10, reducing mechanism comprises rotating shaft 19 and is arranged on the crushing vane 20 in rotating shaft, this crushing vane 20 is screw type blade.Reducing mechanism, by making spiral vane rotation that power is provided under flue gas effect, drives without increasing extra motor.
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 inner sides, air outlet is arranged on perforated distributor 13, the cloth bag material of the common sack cleaner of canvas layer 14 use, canvas layer 14 and air distribution plate 13 adopt band steel 15 and bolt 16 to be fixed together, finally by angle steel 17, be fixed on tower wall 18, 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 large, referring to Fig. 3 and Fig. 4.
Claims (3)
1. a fume desulfurizing tower with reducing mechanism, comprise tower body, in the bottom of tower body, be provided with desulfurization slag outlet, ash poking mouth and gas approach, at the middle part of tower body, be provided with returning charge ash entrance, desulfurizing agent entrance and nozzle interface, upper end at tower body is provided with exhanst gas outlet, it between described desulfurization slag outlet and gas approach, is desulfurizing tower outlet reducing section, it is characterized in that: in the inner chamfer of this reducing section, be provided with uniformly 4～20 discrete air-distribution devices, described air-distribution device has the air outlet that wind direction is tilted to, in described tower body, be also provided with reducing mechanism, disguise crushing device and be arranged on the upper end of air-distribution device, described reducing mechanism comprises rotating shaft and is arranged on the crushing vane in rotating shaft, this crushing vane is 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 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 perforated distributor inner side.
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 CN102512943A (en) | 2012-06-27 |
| CN102512943B true CN102512943B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110386109.XA Active CN102512943B (en) | 2011-11-29 | 2011-11-29 | Smoke desulfurization tower with smashing device |
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| Country | Link |
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| CN (1) | CN102512943B (en) |
Families Citing this family (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 (3)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2011
- 2011-11-29 CN CN201110386109.XA patent/CN102512943B/en active Active
Patent Citations (3)
| 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 |
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| CN102512943A (en) | 2012-06-27 |
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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 |
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