CN1259119C - Doublestage desulfurizing and dedusting apparatus - Google Patents
Doublestage desulfurizing and dedusting apparatus Download PDFInfo
- Publication number
- CN1259119C CN1259119C CN 200310106959 CN200310106959A CN1259119C CN 1259119 C CN1259119 C CN 1259119C CN 200310106959 CN200310106959 CN 200310106959 CN 200310106959 A CN200310106959 A CN 200310106959A CN 1259119 C CN1259119 C CN 1259119C
- Authority
- CN
- China
- Prior art keywords
- plate
- desulphurizing
- stage
- dehydration
- demister
- 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.)
- Expired - Lifetime
Links
- 230000003009 desulfurizing effect Effects 0.000 title description 2
- 239000000428 dust Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000018044 dehydration Effects 0.000 abstract description 7
- 238000006297 dehydration reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 16
- 239000003546 flue gas Substances 0.000 description 16
- 238000006477 desulfuration reaction Methods 0.000 description 8
- 230000023556 desulfurization Effects 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
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- Separation Of Particles Using Liquids (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a two-stage desulphurizing and dust removing device which comprises a casing and a lye circulation system. The present invention is characterized in that the two-stage desulphurizing and dust removing device is formed by that a spray head with low resistance, a venturi with low speed, an impact baffling plate and a deflecting plate demister in annular arrangement are installed in turn from bottom to top. The present invention has the advantages that the plate structure of the venturi with low speed and the impact baffling plate is adopted in the process of two-stage desulphurizing circulation, so the air resistance is low, the desulphurization efficiency is high, and the function of first-stage dehydration is realized; small water drops in fume can be thoroughly removed by a demister which has low resistance and is arranged at the upper part of a desulphurizing tower, so the fume without water is guaranteed. The traditional demister which is in plane arrangement is changed to be in a unit structure, and the circumference of a dehydration folding plate is added at the unit area; thus, the two-stage desulphurizing and dust removing device is convenient to install and repair. Because the dehydration folding plate is installed vertically, the thorough dehydration effect is realized, and the secondary entrainment of the fume is avoided. Compared with the dehydration folding plate in plane arrangement, the permissible flow speed is higher, and the device structure is more compact. Thereby, the space is saved.
Description
Technical field
The present invention relates to the boiler desulfurization dedusting technology, particularly a kind of secondary desulfation dust-extraction device.
Background technology
Middle-size and small-size power plant and big-and-middle-sized Industrial Boiler flue gas desulfurization and dedusting are related to air quality and environmental protection in the zone, are closely related with the people's health.In this field prior art, often use independent deduster, or flue gas ash removal and the shared deduster of desulfurization, this class deduster has effect preferably to the removing of soot dust granule thing, but not good to desulfurized effect.In dedusting and desulfurization unification work, scale formation usually appears particularly.When adding the alkali operation, because device interior filler and device space are less, resistive connection dirt ability, sweetening liq produces calcium sulfate and calcium carbonate crystal occluding device under the high-temperature flue gas effect, cause equipment normally not move; Owing to there is not special flue gas demister, cause fan belt water in addition, can not effectively remove the drop in the flue gas.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, and provide a kind of secondary desulfation dust-extraction device, this device realizes improving efficiency of dust collection by Venturi tube, impingement baffles and deflection plate demister and alkali liquor circulating system are set, and increases the desulfurization defrosting function.
The present invention be address the above problem the scheme that is adopted be the design a kind of secondary desulfation dust-extraction device.It comprises housing and alkali liquor circulating system, it is characterized in that being fixed with a supporting clapboard by the bottom in the said housing, plate is provided with a plurality of circular holes, and correspondence is fixed a Venturi tube on each hole, and above each Venturi tube, fix a water conservancy diversion impingement baffles; Corresponding Venturi tube position is provided with the shower nozzle that communicates with alkali liquor pipe under the said supporting clapboard; Also be fixed with an installing plate by top in the said housing, also be provided with a plurality of circular holes on the plate, the corresponding deflection plate demister of an annular array of fixing on each hole.
The invention has the beneficial effects as follows: in the secondary desulphurization circulating, adopt low speed venturi+impingement baffles structure, make atmidometer low, the desulfuration efficiency height, and played the effect that one-level is dewatered, and the low-resistance demister on desulfurizing tower top can thoroughly be removed fine liquid particles in the flue gas, the assurance flue gas is not with water.This structural change the mode of traditional demister horizontal layout, change cellular structure into, on unit are, increase the girth of dehydration flap, be convenient to install, overhaul more convenient, because it is more thorough that deflection plate is vertically installed dehydration, avoided the flue gas reentrainment, higher than Plane Installation permissible velocity of flow, equipment is compacter, has saved the space.
Be described in detail with reference to accompanying drawing below with reference to embodiments of the invention.
Description of drawings
Fig. 1 secondary desulfation dust-extraction device schematic diagram;
Fig. 2 Venturi tube and impingement baffles schematic diagram;
Fig. 3 demister cutaway view;
Fig. 4 demister front view.
The specific embodiment
Secondary desulfation dust-extraction device of the present invention comprises housing and alkali liquor circulating system.Its housing is one and upper and lowerly is the tank body of open type.
Be fixed with a supporting clapboard 4 by the bottom in tank body, plate is provided with a plurality of circular holes, and correspondence is fixed the low speed Venturi tube 2 that a flow velocity is a per second 15-20 rice on each hole, and above each low speed Venturi tube, fixes a water conservancy diversion impingement baffles 3.Corresponding low speed Venturi tube position, supporting clapboard below is provided with the shower nozzle 1 that communicates with alkali liquor pipe, this shower nozzle then be its resistance drop of requirement at 2 meter water columns with interior low-resistance shower nozzle.The supporting clapboard surface also is coated with the coating 9 that one deck is made up of waterglass and glass-cermic powder.
Also be fixed with an installing plate 5 by top in tank body, also be provided with a plurality of circular holes on the plate, each top, hole correspondence is fixed a demister 6.Demister is provided with annular array and deflection plate 10, and the ring baffle plate top is what seal.
In the alkali liquor circulating system of this device, alkali lye by the alkali case through alkali pump alkali liquor pipe 7 with pump into the low-resistance shower nozzle, spray into the low speed Venturi tube, the liquid of alkali lye under impingement baffles removes flows back to the alkali case by leakage fluid dram 8, and the flue dust in the alkali case and the sediment of product enter settling tank by scum pipe.
Operation principle of the present invention is: flue gas enters the low speed Venturi tube from the tank body end opening, mix upwards mobile with alkali lye from the ejection of low-resistance shower nozzle, under the effect of impingement baffles, turn to mobile, flue gas fully contacts with alkali lye in this process, sulfur dioxide is absorbed by alkali lye, micronic dust in the flue gas is further purified and has been strengthened the desulfurization and dedusting effect, plays the effect of primary dewatering.Flue gas is up behind impingement baffles, and the drop in the flue gas converges on the dividing plate, flows back to the alkali pond by leakage fluid dram.Because dustiness is few in the flue gas, so product purity height is convenient to recycle.Supporting clapboard is then separated dedusting circulation and desulphurization circulating.Flue gas after the desulfurization upwards flows into to change behind the demister and flows to, and flows out from horizontal direction, and the drop in the flue gas is captured by deflection plate, and along compiling under the flap vertical current, and cleaned air passes is from tank body discharge suitable for reading.
Claims (5)
1 one kinds of secondary desulfation dust-extraction devices, comprise housing and alkali liquor circulating system, it is characterized in that being fixed with a supporting clapboard by the bottom in the said housing, plate is provided with a plurality of circular holes, correspondence is fixed a Venturi tube on each hole, and above each Venturi tube, fix a water conservancy diversion impingement baffles; Corresponding Venturi tube position is provided with the shower nozzle that communicates with alkali liquor pipe under the said supporting clapboard; Also be fixed with an installing plate by top in the said housing, also be provided with a plurality of circular holes on the plate, the corresponding deflection plate demister of an annular array of fixing on each hole.
2 according to the described dust arrester of claim 1, it is characterized in that said shower nozzle be resistance drop at 2 meter water columns with interior low-resistance shower nozzle.
3 according to claim 1 or 2 described dust arresters, it is characterized in that the coating that the supporting clapboard surface applied is made up of waterglass and glass-cermic powder one deck.
4 according to claim 1 or 2 described dust arresters, and the deflection plate demister top that it is characterized in that said annular array is what seal.
5 according to the described dust arrester of claim 3, and the deflection plate demister top that it is characterized in that said annular array is what seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106959 CN1259119C (en) | 2003-11-10 | 2003-11-10 | Doublestage desulfurizing and dedusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310106959 CN1259119C (en) | 2003-11-10 | 2003-11-10 | Doublestage desulfurizing and dedusting apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544127A CN1544127A (en) | 2004-11-10 |
| CN1259119C true CN1259119C (en) | 2006-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310106959 Expired - Lifetime CN1259119C (en) | 2003-11-10 | 2003-11-10 | Doublestage desulfurizing and dedusting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259119C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307345B (en) * | 2014-11-19 | 2016-05-04 | 广西南宁华国环境科技有限公司 | A kind of coal smoke desulfurization and dust removal device |
| CN104667677A (en) * | 2015-02-11 | 2015-06-03 | 中国核电工程有限公司 | Venturi washing and filtering device |
| CN106000045B (en) * | 2016-06-17 | 2019-04-16 | 王骞 | Boiler smoke depth dust-removal and desulfurizing denitration device |
| CN106823742A (en) * | 2017-02-16 | 2017-06-13 | 上海蓝科石化环保科技股份有限公司 | A kind of desulfurization and dust-removal method of double circulation desulphurization and dust-removing device and flue gas |
| CN114642922A (en) * | 2020-12-17 | 2022-06-21 | 瑞切尔石化工程(上海)有限公司 | From wet flue gas condensation equipment and flue gas processing system of taking defogging system |
| CN115181596B (en) * | 2022-08-02 | 2023-10-27 | 合肥万豪能源设备有限责任公司 | Mechanical dewatering device for coal bed gas |
| CN116116195A (en) * | 2023-04-04 | 2023-05-16 | 河南省双碳研究院有限公司 | Desulfurization edulcoration device of carbon dioxide |
-
2003
- 2003-11-10 CN CN 200310106959 patent/CN1259119C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1544127A (en) | 2004-11-10 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 263 Hongqi South Road, Tianjin, Nankai District Patentee after: TIANJIN University OF TECHNOLOGY Address before: No. 263 Hongqi South Road, Tianjin, Nankai District Patentee before: Tianjin University of Technology |
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| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Jinma Industrial Zone, Shunyi District, Beijing Patentee after: BEIJING DHP CHEMICAL ENGINEERING Co.,Ltd. Address before: No. 263 Hongqi South Road, Tianjin, Nankai District Patentee before: Tianjin University of Technology |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING DEHOUPO CHEMICAL ENGINEERING TECHNOLOGY CO Free format text: FORMER OWNER: TIANJIN UNIVERSITY OF TECHNOLOGY Effective date: 20081212 |
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Owner name: TIANJIN UNIVERSITY OF TECHNOLOGY Free format text: FORMER NAME: TIANJIN SCIENCE + ENGINEERING UNIV. |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 101318 Jinma Industrial Zone, Beijing, Shunyi District Patentee after: BEIJING DHP CHEMICAL ENGINEERING Co.,Ltd. Address before: 101318 Jinma Industrial Zone, Beijing, Shunyi District Patentee before: BEIJING DHP CHEMICAL ENGINEERING Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060614 |