CN211837242U - Multi-stage multi-tower combined structure equipment for large-air-volume flue gas desulfurization - Google Patents
Multi-stage multi-tower combined structure equipment for large-air-volume flue gas desulfurization Download PDFInfo
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- CN211837242U CN211837242U CN201921512441.4U CN201921512441U CN211837242U CN 211837242 U CN211837242 U CN 211837242U CN 201921512441 U CN201921512441 U CN 201921512441U CN 211837242 U CN211837242 U CN 211837242U
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- flue gas
- tower
- pipeline
- desulfurizing
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000003546 flue gas Substances 0.000 title claims abstract description 81
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 22
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 50
- 239000000779 smoke Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 50
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000004321 preservation Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000003541 multi-stage reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- -1 fluoride ions Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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 provides a multi-stage multi-tower combined structure device for large air volume flue gas desulfurization, a pipeline heating device and a pipeline air inlet control valve are arranged on two sides of the first baffle door, a flue gas flowmeter is arranged on the left side of the pipeline air inlet control valve, a desulfurizing tower device is arranged on the left side of the flue gas flowmeter, a pipeline exhaust control valve is arranged on the left side of the desulfurizing tower device, the pipeline exhaust control valve is connected with the air inlet end of the second baffle door, the air outlet end of the second baffle door is connected with an induced draft fan, the induced draft fan is connected with the smoke exhaust device through a flue gas pipeline, through the pipeline heating device, the corrosion of flue gas to equipment is reduced, the multi-stage tower parallel structure is adopted, the desulfurization treatment of the flue gas with large air quantity and medium and high concentration can be met, the application range of dry desulfurization is improved, and the multi-stage reaction area is adopted on the tower body structure of the reactor, so that the flue gas desulfurization efficiency is greatly improved.
Description
Technical Field
The utility model relates to a flue gas desulfurization equipment field especially relates to a multistage many towers association structural equipment for big amount of wind flue gas desulfurization.
Background
At present, limestone-gypsum wet desulphurization technology, ammonia desulphurization technology, seawater method, organic amine method, flue gas circulating fluidized bed method, semi-dry method, double alkali method, magnesium method and other methods are selected as flue gas desulphurization treatment technologies in the market, and in flue gas desulphurization engineering implemented in China at present, wet flue gas desulphurization technology is mostly adopted no matter large-scale power plant boilers or medium-small coal-fired boilers, because the technology has high desulphurization rate and relatively mature and reliable process, but the wet process has the problems of large investment, high operating cost, hidden danger of secondary pollution and the like, and is difficult to bear by common enterprises.
At present, the main component of the conventional dry and semi-dry desulfurizing agents is a milky desulfurizing agent (calcium hydroxide) prepared from quicklime and water, flue gas is sprayed in a countercurrent or concurrent manner, gypsum is generated, and the desulfurization process is completed by dedusting and solid recovery, SO that overall, the dry and semi-dry desulfurizing efficiency is very low, and generally, the desulfurization efficiency can only reach about 70%, and the wet desulfurizing principle is that SO in the flue gas is washed by alkaline solution and the SO in the flue gas is removed2Absorbed by the solution to generate sulfite solution which is approximately saturated and then oxidized to generate sulfate, and a desulphurization byproduct is generated after crystallization. The wet desulphurization efficiency is very high, but the corrosion to equipment is inevitable, the corrosion is caused by complex smoke components, the generated sulfate is strong acid under an acidic condition, chloride ions brought by smoke can corrode stainless steel, fluoride ions can corrode glass (instruments), alkaline substances added in desulphurization can also corrode steel, and in addition, the traditional dry desulphurization equipment is difficult to meet the treatment of smoke with large air volume and high concentration, so that the dry desulphurization equipment capable of desulfurizing under a high-temperature condition and ensuring the desulphurization efficiency is required.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage many towers joint structure equipment for big amount of wind flue gas desulfurization to solve the problem that proposes in the above-mentioned background art.
The technical scheme of the utility model is that: the utility model provides a multi-stage multi-tower combined structure equipment for big amount of wind flue gas desulfurization, includes pipeline heating device, a flapper door, pipeline air inlet control valve, flue gas flowmeter, desulfurizing tower device, pipeline exhaust control valve, No. two flapper doors, draught fan, fume extractor, its characterized in that: a pipeline heating device and a pipeline air inlet control valve are arranged on two sides of the first baffle door, a flue gas flowmeter is arranged on the left side of the pipeline air inlet control valve, a desulfurizing tower device is arranged on the left side of the flue gas flowmeter, a pipeline exhaust control valve is arranged on the left side of the desulfurizing tower device, the pipeline exhaust control valve is connected with the air inlet end of the second baffle door, the air outlet end of the second baffle door is connected with an induced draft fan, and the induced draft fan is connected with a smoke exhaust device through a flue gas pipeline; the desulfurizing tower device includes tower body, one-level reaction zone, second grade reaction zone, tertiary reaction zone, desulfurizer pan feeding mouth, desulfurizer discharge gate, flue gas air inlet, flue gas outlet, inside one-level reaction zone, second grade reaction zone and the tertiary reaction zone of being provided with of tower body, the tower body top is provided with desulfurizer pan feeding mouth, the tower body bottom is provided with the desulfurizer discharge gate, the tower body both sides are provided with flue gas air inlet and flue gas outlet.
Preferably, the tower body is formed by connecting two column tower structures in series, the two column tower structures are communicated with each other, and then the two column tower structures are arranged in parallel.
Preferably, the tower body further comprises a tower wall, an anticorrosive layer and a heat preservation layer, the anticorrosive layer is arranged on the inner surface of the tower wall, and the heat preservation layer is arranged on the outer surface of the tower wall.
Preferably, a second-stage reaction zone is arranged above the first-stage reaction zone, and a third-stage reaction zone is arranged above the second-stage reaction zone.
Preferably, the number of the desulfurizing tower devices is at least 2, the reaction stage number of the desulfurizing tower is at least 2, and each desulfurizing tower device comprises 2 desulfurizing agent feeding ports and 8 desulfurizing agent discharging ports.
Preferably, the smoke outlet is arranged above the smoke inlet.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the flue heater is adopted to heat the flue gas entering the tower body, so that the flue gas entering the tower body of the reactor is ensured to keep higher temperature, the desulfurization process is always at high temperature, the desulfurization reaction rate is greatly improved, and the corrosion problem of equipment is reduced.
2. The multi-tower combined structure is adopted, the reaction tower cylinders are connected in series and then connected in parallel, the desulfurization treatment of the flue gas with large air quantity and high concentration can be met, and the application range of dry desulfurization is widened. 3. The multistage reaction zone is adopted, the reaction process of the reactant and the flue gas can be controlled, and the desulfurization efficiency of the flue gas is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the desulfurizing tower device of the utility model.
FIG. 3 is a schematic view of the cross-sectional structure of the tower body of the present invention
In the figure: the device comprises a pipeline heating device 1, a first baffle door 2, a pipeline air inlet control valve 3, a flue gas flowmeter 4, a desulfurizing tower device 5, a pipeline exhaust control valve 6, a second baffle door 7, an induced draft fan 8, a smoke exhaust device 9, a tower body 51, a first-stage reaction zone 52, a second-stage reaction zone 53, a third-stage reaction zone 54, a desulfurizing agent inlet 55, a desulfurizing agent outlet 56, a flue gas inlet 57, a flue gas outlet 58, a tower wall 511, an anticorrosive coating 512 and a heat insulating coating 513.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figures 1-3, a multi-stage multi-tower combined structure device for desulfurizing flue gas with large air volume comprises a pipeline heating device 1, a baffle door 2, a pipeline air inlet control valve 3, a flue gas flowmeter 4, a desulfurizing tower device 5, a pipeline exhaust control valve 6, a baffle door 7, a draught fan 8 and a smoke exhaust device 9, wherein the pipeline heating device 1 can adopt an air duct heater, flue gas entering the tower body of a reactor is ensured to keep higher temperature by heating the flue gas entering the tower body, the moisture in the flue gas is reduced, the corrosion of the flue gas to the device is reduced, the flue gas flowmeter 4 can adopt a DS1801WJ type gas flowmeter, the draught fan 8 can adopt a Y315S-6 type draught fan, the pipeline heating device 1 and the pipeline air inlet control valve 3 are arranged on two sides of the baffle door 2, the flue gas flowmeter 4 is arranged on the left side of the pipeline air inlet control valve 3, the desulfurizing tower device 5 is arranged on the left side of the flue, a pipeline exhaust control valve 6 is arranged on the left side of the desulfurizing tower device 5, the pipeline exhaust control valve 6 is connected with the air inlet end of a second baffle door 7, the air outlet end of the second baffle door 7 is connected with an induced draft fan 8, and the induced draft fan 8 is connected with a smoke exhaust device 9 through a smoke pipeline; the desulfurizing tower device 5 comprises a tower body 51, a first-stage reaction zone 52, a second-stage reaction zone 53, a third-stage reaction zone 54, a desulfurizing agent feeding port 55, a desulfurizing agent discharging port 56, a flue gas inlet 57 and a flue gas outlet 58, wherein the first-stage reaction zone 52, the second-stage reaction zone 53 and the third-stage reaction zone 54 are arranged inside the tower body 51, the desulfurizing agent feeding port 55 is arranged at the top of the tower body 51, the desulfurizing agent discharging port 56 is arranged at the bottom of the tower body 51, and the flue gas inlet 57 and the flue gas outlet 58.
Further, the tower body 5 is formed by connecting two column tower structures in series, the interior of the tower body is communicated, and then the tower bodies are arranged in parallel by adopting a multi-tower structure, so that the desulfurization treatment of the flue gas with large air quantity and medium and high concentration can be met, and the application range of dry desulfurization is enlarged.
Further, the tower body 51 further comprises a tower wall 511, an anticorrosive layer 512 and a heat preservation layer 513, the anticorrosive layer 512 is arranged on the inner surface of the tower wall 511, the anticorrosive layer is added, the corrosion problem of the equipment is greatly reduced, the service life of the equipment is prolonged, the heat preservation layer 513 is arranged on the outer surface of the tower wall 511, and the heat loss caused by reaction can be reduced and the reaction efficiency of the desulfurizer and the flue gas is improved by adding the heat preservation layer.
Further, a second-stage reaction zone 53 is arranged above the first-stage reaction zone 52, and a third-stage reaction zone 54 is arranged above the second-stage reaction zone 53, and the multistage reaction zone arrangement is adopted, so that the reaction process of the reactant and the flue gas can be controlled, and the flue gas desulfurization efficiency is improved.
Furthermore, the number of the desulfurizing tower devices 5 is at least 2, and each desulfurizing tower device 5 comprises 2 desulfurizing agent feeding ports 55 and 8 desulfurizing agent discharging ports 56.
Further, the flue gas outlet 58 is arranged above the flue gas inlet 57, and the flue gas moves from bottom to top in the desulfurizing tower device 5, so that the flow rate of the gas can be controlled, and meanwhile, the flue gas and the desulfurizing agent are in cross-flow contact reaction, so that the flue gas desulfurizing efficiency is improved.
The working principle is as follows: the working personnel send the desulfurizer into the tower body 51 through the desulfurizer inlet 55, the desulfurizer enters the third-stage reaction zone 54, the second-stage reaction zone 53 and the first-stage reaction zone 52 in the tower body 51 in sequence, and simultaneously, the pipeline heating device 1 is opened, the flue gas passing through the pipeline is heated, the heated flue gas is divided after passing through the baffle door 2, the inlet speed of the flue gas is controlled by the pipeline inlet control valve 3, the flue gas enters the tower body 51 through the flue gas inlet 57, the flue gas sequentially passes through the primary reaction zone 52, the secondary reaction zone 53 and the tertiary reaction zone 54 in the tower body 51 for desulfurization reaction, the reacted flue gas flows out of the tower body 51 through the flue gas outlet 58, the outlet speed of the flue gas is controlled by the pipeline exhaust control valve 6, under the action of the induced draft fan 8, the flue gas after reaction is discharged through the smoke exhaust device 9, and the desulfurizer after reaction is discharged from the desulfurizer discharge port 56.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a multi-stage multitower combined structure equipment for big amount of wind flue gas desulfurization, includes pipeline heating device (1), overhead damper (2), pipeline air inlet control valve (3), flue gas flowmeter (4), desulfurizing tower device (5), pipeline row air control valve (6), overhead damper (7), draught fan (8), fume extractor (9), its characterized in that: a pipeline heating device (1) and a pipeline air inlet control valve (3) are arranged on two sides of the first baffle door (2), a flue gas flowmeter (4) is arranged on the left side of the pipeline air inlet control valve (3), a desulfurizing tower device (5) is arranged on the left side of the flue gas flowmeter (4), a pipeline exhaust control valve (6) is arranged on the left side of the desulfurizing tower device (5), the pipeline exhaust control valve (6) is connected with the air inlet end of a second baffle door (7), the air outlet end of the second baffle door (7) is connected with an induced draft fan (8), and the induced draft fan (8) is connected with a smoke exhaust device (9) through a flue gas pipeline; desulfurizing tower device (5) are including tower body (51), one-level reaction zone (52), second grade reaction zone (53), tertiary reaction zone (54), desulfurizer pan feeding mouth (55), desulfurizer discharge gate (56), flue gas inlet (57), flue gas outlet (58), tower body (51) inside is provided with one-level reaction zone (52), second grade reaction zone (53) and tertiary reaction zone (54), tower body (51) top is provided with desulfurizer pan feeding mouth (55), tower body (51) bottom is provided with desulfurizer discharge gate (56), tower body (51) both sides are provided with flue gas inlet (57) and flue gas outlet (58).
2. The multi-stage multi-tower combined structure equipment for desulfurizing flue gas with large air volume according to claim 1, wherein: the tower body (51) is formed by connecting at least two column-shaped tower structures in series, the interior of the tower body is communicated, and then the tower bodies are arranged in parallel.
3. The multi-stage multi-tower combined structure equipment for desulfurizing flue gas with large air volume according to claim 1, wherein: the tower body (51) further comprises a tower wall (511), an anticorrosive layer (512) and a heat preservation layer (513), wherein the anticorrosive layer (512) is arranged on the inner surface of the tower wall (511), and the heat preservation layer (513) is arranged on the outer surface of the tower wall (511).
4. The multi-stage multi-tower combined structure equipment for desulfurizing flue gas with large air volume according to claim 1, wherein: a second-stage reaction zone (53) is arranged above the first-stage reaction zone (52), and a third-stage reaction zone (54) is arranged above the second-stage reaction zone (53).
5. The multi-stage multi-tower combined structure equipment for desulfurizing flue gas with large air volume according to claim 1, wherein: the number of the desulfurizing tower devices (5) is at least 2, the reaction stage number of the desulfurizing tower is at least 2, and each desulfurizing tower device (5) comprises 2 desulfurizing agent feeding ports (55) and 8 desulfurizing agent discharging ports (56).
6. The multi-stage multi-tower combined structure equipment for desulfurizing flue gas with large air volume according to claim 1, wherein: the smoke outlet (58) is arranged above the smoke inlet (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512441.4U CN211837242U (en) | 2019-09-11 | 2019-09-11 | Multi-stage multi-tower combined structure equipment for large-air-volume flue gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512441.4U CN211837242U (en) | 2019-09-11 | 2019-09-11 | Multi-stage multi-tower combined structure equipment for large-air-volume flue gas desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211837242U true CN211837242U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921512441.4U Expired - Fee Related CN211837242U (en) | 2019-09-11 | 2019-09-11 | Multi-stage multi-tower combined structure equipment for large-air-volume flue gas desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211837242U (en) |
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2019
- 2019-09-11 CN CN201921512441.4U patent/CN211837242U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |