CN201949801U - Flue gas desulfurization device of thermal power generating unit of burning high-sulfur coal - Google Patents
Flue gas desulfurization device of thermal power generating unit of burning high-sulfur coal Download PDFInfo
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- CN201949801U CN201949801U CN 201120011242 CN201120011242U CN201949801U CN 201949801 U CN201949801 U CN 201949801U CN 201120011242 CN201120011242 CN 201120011242 CN 201120011242 U CN201120011242 U CN 201120011242U CN 201949801 U CN201949801 U CN 201949801U
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- China
- Prior art keywords
- cyclonic reactor
- flue gas
- conveyance conduit
- generating unit
- power generating
- Prior art date
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 39
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003546 flue gas Substances 0.000 title claims abstract description 30
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 230000023556 desulfurization Effects 0.000 title abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 title abstract description 6
- 239000011593 sulfur Substances 0.000 title abstract description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000000292 calcium oxide Substances 0.000 claims abstract description 41
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 39
- 238000007254 oxidation reaction Methods 0.000 claims description 19
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 claims description 18
- 239000005864 Sulphur Substances 0.000 claims description 16
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000003595 mist Substances 0.000 abstract 3
- 230000005611 electricity Effects 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 26
- 230000002745 absorbent Effects 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a flue gas desulfurization device of a thermal power generating unit of burning high-sulfur coal, which comprises a quicklime bin (1), a quicklime digester (2), a cyclone reactor (3), a wet desulfurization tower (4), a wet static mist eliminator (5) and a chimney (6), wherein the bottom of the quicklime bin (1) is connected with the quicklime digester (2) through a conveying pipeline I (14); the quicklime digester (2) is connected with the cyclone reactor (3) through a conveying pipeline II (15); the top of the cyclone reactor (3) is connected with the wet desulfurization tower (4) through a flue gas pipeline (8); the wet static mist eliminator (5) is arranged on the top in the wet desulfurization tower (4); and an exhaust port of the wet static mist eliminator (5) is connected with the chimney (6). The utility model can not only be used for removing SO2 and SO3 in the flue gas emitted by the thermal power generating unit of the burning high-sulfur coal to enable the flue gas emitted by the thermal power generating unit to reach national emission standards, but also has the advantages of simple structure, small land occupation area, low electricity consumption and low primary equipment investment cost, and also enhances the utilization rate of systems.
Description
Technical field
The utility model relates to a kind of flue gas desulfur device, particularly a kind of flue gas desulfur device that uses the sulphur coal fired power generating unit.
Background technology
Sulfur dioxide is the major pollutants of China's atmosphere pollution, and it is very severe to pollute situation." national economy and social development 11th Five-Year Plan outline " proposes the restrictive index of sulfur dioxide (SO2) emissions total amount reduction 10% in 2010, and promptly by 2010, SO2 emissions will be reduced to 2294.4 ten thousand tons.China's sulfur dioxide (SO2) emissions total amount was 2588.8 ten thousand tons in 2006, and wherein thermal power plant's SO2 emissions are about 1,350 ten thousand tons, and thermal power plant's SO2 emissions have accounted for more than 50% of national total release.Along with coal conversion is that the proportion of electric power improves constantly, especially the task of sulfur dioxide (SO2) emissions will be more and more arduous for control thermal power plant Air Pollutant Emission.Under the such historical background of energy-saving and emission-reduction, China's desulfurization industry and desulfur technology are flourish.Flue gas desulfurization is the important channel of control sulfur dioxide (SO2) emissions, also is most economical, effective means.Flue gas desulfurization technique commonly used is divided into dry desulfurization and wet desulphurization.
Wet desulphurization is very high to the clearance of sulfur dioxide, but shortcomings such as this sulfur method has that investment is big, power consumption is big, floor space is big, equipment is complicated, operating cost and specification requirement height.
The desulfuration efficiency of dry flue gas desulphurization dust collecting process is lower, absorbent need adopt the higher calcium lime powder of quality, calcium sulfur ratio height, is difficult to reach " thermal power plant's atmosphere pollutants emission standards (GB13223-2003) " outlet dust concentration and SO
2The requirement of concentration of emission.
The utility model content
The purpose of this utility model is, a kind of flue gas desulfur device that uses the sulphur coal fired power generating unit is provided, and it not only can remove the SO in the flue gas
2And SO
3, the flue gas that fired power generating unit is given off reaches national specified discharge standard, and has advantage simple in structure, that floor space is little, power consumption is low, the investment of equipment cost is low, and has improved the availability of system.
The technical solution of the utility model: a kind of flue gas desulfur device that uses the sulphur coal fired power generating unit, comprise quick lime feed bin, burnt lime digester, Cyclonic reactor, wet desulfuration tower, wet electrostatic demister and chimney, the bottom of quick lime feed bin is connected with burnt lime digester by conveyance conduit one, burnt lime digester is connected with Cyclonic reactor by conveyance conduit two, the top of Cyclonic reactor is connected with wet desulfuration tower by flue, the wet electrostatic demister is arranged on the top in the wet desulfuration tower, and the exhaust outlet of wet electrostatic demister is connected with chimney.
In the aforesaid flue gas desulfur device that uses the sulphur coal fired power generating unit, the bottom of Cyclonic reactor is provided with oxidation pond, the bottom of oxidation pond is provided with conveyance conduit three and conveyance conduit four, and conveyance conduit three is connected with conveyance conduit two, and conveyance conduit four is connected with wet desulfuration tower.The purpose that oxidation pond is set in the Cyclonic reactor bottom is that calcium sulfite oxidation is become calcium sulfate; The purpose that conveyance conduit three and conveyance conduit four is set in oxidation pond bottom is that the absorbent that do not react in Cyclonic reactor is transported to and continues in Cyclonic reactor and the wet desulfuration tower to use.
In the aforesaid flue gas desulfur device that uses the sulphur coal fired power generating unit, Cyclonic reactor comprises Cyclonic reactor housing, Cyclonic reactor inlet and Cyclonic reactor outlet, the Cyclonic reactor inlet tangentially is connected with the Cyclonic reactor housing, and the Cyclonic reactor outlet is located on the central point of Cyclonic reactor case top.Cyclonic reactor inlet and the tangential purpose of connecting of Cyclonic reactor housing be, absorbent tangentially enters cyclone from housing, along the helix high speed rotary motion, at last by overfall and underflow opening outflow.The fluid of rotation produces centrifugal force field or super gravity field, has the effect of augmentation of heat transfer, mass transfer.The cyclone inner fluid produces eddy flow by water conservancy diversion, thereby produces super gravity field, is a kind of static hypergravity device, makes cyclone both can finish heat and mass fast, can finish fast again mutually or the separation of product.
In the aforesaid flue gas desulfur device that uses the sulphur coal fired power generating unit, the bottom of Cyclonic reactor housing is provided with the awl bucket, and the awl bucket is connected with oxidation pond.The purpose that the awl bucket is set is that the awl bucket helps the blanking of solid particle, avoids adhesion fouling on reactor.
In the aforesaid flue gas desulfur device that uses the sulphur coal fired power generating unit, the conveyance conduit two on the burnt lime digester is connected with the top of Cyclonic reactor.
Compared with prior art, because combining wet desulphurization device and dry desulfurization device, the utility model effectively improved the desulfurization degree of whole system, and the utility model has saved desulfurizing tower, the deduster in the conventional dry desulphurization plant and has returned ash system, dry-method desulfurization device is greatly simplified, not only saved a large amount of occupation area of equipment, but also reduced the power consumption of equipment, so, be particularly suitable for desulfurization capacity-increasing transformation engineering because the initial cost of the simple equipment of device structure is few.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation that burnt lime digester is connected with the Cyclonic reactor middle part;
Fig. 3 is the structural representation of Cyclonic reactor;
Fig. 4 is the vertical view of Cyclonic reactor.
Being labeled as in the accompanying drawing: 1-quick lime feed bin, 2-burnt lime digester, 3-Cyclonic reactor, the 4-wet desulfuration tower, 5-wet electrostatic demister, 6-chimney, the 7-oxidation pond, 8-flue, 9-Cyclonic reactor housing, 10-Cyclonic reactor inlet, the outlet of 11-Cyclonic reactor, 12-conveyance conduit four, 13-bores bucket, 14-conveyance conduit one, 15-conveyance conduit two, 16-conveyance conduit three.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment 1 of the present utility model: a kind of flue gas desulfur device that uses the sulphur coal fired power generating unit, comprise quick lime feed bin 1, burnt lime digester 2, Cyclonic reactor 3, wet desulfuration tower 4, wet electrostatic demister 5 and chimney 6, the bottom of quick lime feed bin 1 is connected with burnt lime digester 2 by conveyance conduit 1, burnt lime digester 2 is connected with Cyclonic reactor 3 by conveyance conduit 2 15, the top of Cyclonic reactor 3 is connected with wet desulfuration tower 4 by flue 8, wet electrostatic demister 5 is arranged on the top in the wet desulfuration tower 4, and the exhaust outlet of wet electrostatic demister 5 is connected with chimney 6.The bottom of Cyclonic reactor 3 is provided with oxidation pond 7, and the bottom of oxidation pond 7 is provided with conveyance conduit 3 16 and conveyance conduit 4 12, and conveyance conduit 3 16 is connected with conveyance conduit 2 15, and conveyance conduit 4 12 is connected with wet desulfuration tower 4.Cyclonic reactor 3 comprises Cyclonic reactor housing 9, Cyclonic reactor inlet 10 and Cyclonic reactor outlet 11, Cyclonic reactor inlet 10 tangentially is connected with Cyclonic reactor housing 9, and Cyclonic reactor exports 11 and is located on the central point at Cyclonic reactor housing 9 tops.The bottom of Cyclonic reactor housing 9 is provided with awl bucket 13, and awl bucket 13 is connected with oxidation pond 7.Conveyance conduit 2 15 on the burnt lime digester 2 is connected with Cyclonic reactor inlet 10.
Operation principle of the present utility model: at first the quick lime in the quick lime feed bin 1 is generated absorbent in burnt lime digester 2, then absorbent is sprayed in the Cyclonic reactor 3 by conveyance conduit 2 15, sulfur-containing smoke gas enters the Cyclonic reactor 3 and absorbent generation chemical reaction, the part SO in the sulfur-containing smoke gas from Cyclonic reactor inlet 10
3With part SO
2Be removed remaining SO
3And SO
2Discharge from the Cyclonic reactor outlet 11 at Cyclonic reactor 3 tops with flue gas, along flue 8 enter in the wet desulfuration tower 4 with slurries in calcium carbonate and airborne oxygen generation chemical reaction, generate calcium sulphate dihydrate, last wet electrostatic demister 5 is with remaining SO in the desulfurization flue gas
3, the wet method tower droplet that the dry desulfurization ash that effectively captures and system produce of failing removes, the flue gas of allow compliance with emission standards is discharged from chimney 6.
Claims (5)
1. flue gas desulfur device that uses the sulphur coal fired power generating unit, it is characterized in that: comprise quick lime feed bin (1), burnt lime digester (2), Cyclonic reactor (3), wet desulfuration tower (4), wet electrostatic demister (5) and chimney (6), the bottom of quick lime feed bin (1) is connected with burnt lime digester (2) by conveyance conduit one (14), burnt lime digester (2) is connected with Cyclonic reactor (3) by conveyance conduit two (15), the top of Cyclonic reactor (3) is connected with wet desulfuration tower (4) by flue (8), wet electrostatic demister (5) is arranged on the top in the wet desulfuration tower (4), and the exhaust outlet of wet electrostatic demister (5) is connected with chimney (6).
2. the flue gas desulfur device that uses the sulphur coal fired power generating unit according to claim 1, it is characterized in that: the bottom of Cyclonic reactor (3) is provided with oxidation pond (7), the bottom of oxidation pond (7) is provided with conveyance conduit three (16) and conveyance conduit four (12), conveyance conduit three (16) is connected with conveyance conduit two (15), and conveyance conduit four (12) is connected with wet desulfuration tower (4).
3. the flue gas desulfur device that uses the sulphur coal fired power generating unit according to claim 1 and 2, it is characterized in that: Cyclonic reactor (3) comprises Cyclonic reactor housing (9), Cyclonic reactor inlet (10) and Cyclonic reactor outlet (11), Cyclonic reactor inlet (10) tangentially is connected with Cyclonic reactor housing (9), and Cyclonic reactor outlet (11) is located on the central point at Cyclonic reactor housing (9) top.
4. the flue gas desulfur device that uses the sulphur coal fired power generating unit according to claim 3 is characterized in that: the bottom of Cyclonic reactor housing (9) is provided with awl bucket (13), and awl bucket (13) is connected with oxidation pond (7).
5. the flue gas desulfur device that uses the sulphur coal fired power generating unit according to claim 1 is characterized in that: the conveyance conduit two (15) on the burnt lime digester (2) is connected with the top of Cyclonic reactor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011242 CN201949801U (en) | 2011-01-14 | 2011-01-14 | Flue gas desulfurization device of thermal power generating unit of burning high-sulfur coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011242 CN201949801U (en) | 2011-01-14 | 2011-01-14 | Flue gas desulfurization device of thermal power generating unit of burning high-sulfur coal |
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|---|---|
| CN201949801U true CN201949801U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120011242 Expired - Fee Related CN201949801U (en) | 2011-01-14 | 2011-01-14 | Flue gas desulfurization device of thermal power generating unit of burning high-sulfur coal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120131A (en) * | 2011-01-14 | 2011-07-13 | 华电环保系统工程有限公司 | Method and device for desulfurizing flue gas of thermal power unit burning high sulfur coal |
| CN103055649A (en) * | 2013-01-28 | 2013-04-24 | 北京玄路海科技有限公司 | Dust removal, desulfurization and denitrification device of coal-fired power generation boiler |
| CN104147891A (en) * | 2014-08-25 | 2014-11-19 | 东南大学 | Device and method for controlling fine particle emission in wet flue gas desulfurization |
| CN104815549A (en) * | 2015-04-23 | 2015-08-05 | 刘洋 | Multi-stage desulfurization device with filtrate purification device |
-
2011
- 2011-01-14 CN CN 201120011242 patent/CN201949801U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120131A (en) * | 2011-01-14 | 2011-07-13 | 华电环保系统工程有限公司 | Method and device for desulfurizing flue gas of thermal power unit burning high sulfur coal |
| CN102120131B (en) * | 2011-01-14 | 2013-08-14 | 华电环保系统工程有限公司 | Method and device for desulfurizing flue gas of thermal power unit burning high sulfur coal |
| CN103055649A (en) * | 2013-01-28 | 2013-04-24 | 北京玄路海科技有限公司 | Dust removal, desulfurization and denitrification device of coal-fired power generation boiler |
| CN103055649B (en) * | 2013-01-28 | 2015-03-11 | 北京玄路海科技有限公司 | Dust removal, desulfurization and denitrification device of coal-fired power generation boiler |
| CN104147891A (en) * | 2014-08-25 | 2014-11-19 | 东南大学 | Device and method for controlling fine particle emission in wet flue gas desulfurization |
| CN104815549A (en) * | 2015-04-23 | 2015-08-05 | 刘洋 | Multi-stage desulfurization device with filtrate purification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100035, B, building 5, Huadian building, No. 273 Xizhimen Main Street, Beijing, Xicheng District Patentee after: Huadian Environmental Protection System Engineering Co., Ltd. Patentee after: CHINA HUADIAN ENGINEERING CO., LTD. Address before: 100035, B, building 5, Huadian building, No. 273 Xizhimen Main Street, Beijing, Xicheng District Patentee before: Huadian Environmental Protection System Engineering Co., Ltd. Patentee before: China Huadian Engineering (Group) Co., Ltd. |
|
| 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: 20110831 Termination date: 20180114 |