CN214075953U - Dry desulfurization complete process unit - Google Patents
Dry desulfurization complete process unit Download PDFInfo
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- CN214075953U CN214075953U CN202023140994.7U CN202023140994U CN214075953U CN 214075953 U CN214075953 U CN 214075953U CN 202023140994 U CN202023140994 U CN 202023140994U CN 214075953 U CN214075953 U CN 214075953U
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- Prior art keywords
- turbulent flow
- flow reactor
- reactor
- storage bin
- ash
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 230000023556 desulfurization Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 14
- 230000003139 buffering effect Effects 0.000 claims abstract description 13
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The utility model provides a dry desulfurization complete process units, include: the device comprises a storage bin, a turbulent flow reactor, a combined Venturi tube reactor and a dust remover, wherein the lower end of the storage bin is connected with a spiral metering weighing feeder and a grinding machine, a Roots conveying fan is arranged in a connecting pipeline between the grinding machine and the turbulent flow reactor, the turbulent flow reactor is connected with an atomizing nozzle, the turbulent flow reactor is arranged on a flue according to the flow direction of flue gas, the lower end of the turbulent flow reactor is connected with the combined Venturi tube reactor, the upper end and the lower end of the combined Venturi tube reactor are provided with pattern plates, the other end of the flue is connected with the dust remover, the lower end of the dust remover is provided with an outer ash discharge valve, a buffering ash bin and a backflow Roots fan, and circulating ash is sent into the storage bin through a pipeline connecting the buffering ash bin and the storage bin. Has the advantages of high desulfurization efficiency, reduced abrasion and blockage, simple process and low one-time investment.
Description
Technical Field
The utility model belongs to the technical field of industrial flue gas desulfurization, a dry desulfurization complete process units is related to, be applicable to middle-size and small-size metallurgy sintering machine, coke oven and industrial boiler flue gas desulfurization aspect and use.
Background
A large amount of sulfur dioxide discharged from industrial flue gas needs to be treated, and common desulfurization processes comprise a wet method, a semi-dry method and a dry method.
The wet desulphurization process has the main advantages of high desulphurization efficiency which can reach more than 99 percent, simple operation and maintenance, and the main disadvantages of high one-time investment, large occupied area, large water consumption, dehydration treatment of desulphurization slag and the like. The semi-dry desulfurization method has the advantages of moderate investment and desulfurization efficiency, no waste water and waste liquid discharge, and the main defects of poor adaptability to flue gas load change, easy fluctuation of desulfurization efficiency and easy influence on subsequent dust removal. The dry desulfurization process has the advantages of simple process, low investment, no need of water and the like, and has the defects of low desulfurization efficiency which can only reach about 70 percent generally, and easy abrasion and blockage of a system. The above limits the application of various desulfurization techniques.
The dry desulfurization process generally adopts sodium bicarbonate to be sprayed into a high-temperature flue gas pipeline for desulfurization reaction, and the reaction principle is as follows:
2NaHCO3＝Na2CO3+H2O+CO2
Na2CO3+2SO2+H2O＝CO2+2NaHSO3
Na2CO3+SO2+H2O＝H2O+CO2+Na2SO3
one of the key factors for improving the desulfurization efficiency, regardless of wet and dry desulfurization, is the solid or liquid phase desulfurizing agent and the gas phase SO2The reaction efficiency is greatly influenced by the mixing effect of the mixture.
Disclosure of Invention
The utility model provides a complete set of process unit for dry desulphurization by combining the material conveying and solid-phase gas-phase mixing mechanism aiming at the advantages and disadvantages of wet, semi-dry and dry desulphurization.
The utility model discloses a realize through following technical scheme: a dry desulfurization complete process unit is characterized in that: the method comprises the following steps: the device comprises a storage bin, a turbulent flow reactor, a combined Venturi tube reactor and a dust remover, wherein the lower end of the storage bin is connected with a spiral metering weighing feeder and a grinding machine, a Roots conveying fan is arranged in a connecting pipeline of the grinding machine and the turbulent flow reactor, the turbulent flow reactor end of the connecting pipeline of the grinding machine and the turbulent flow reactor is connected with an atomizing nozzle, the turbulent flow reactor is arranged on a flue according to the flue gas flow direction, the lower end of the turbulent flow reactor is connected with the combined Venturi tube reactor, flower plates are arranged on the upper end and the lower end of the combined Venturi tube reactor, the lower end of the lower flower plate is connected with the flue, the other end of the flue is connected with the dust remover, an outer ash discharge valve and a buffering ash bin are arranged at the lower end of the dust remover, a reflux Roots blower is arranged in the buffering ash bin, and circulating ash are fed into the storage bin through a pipeline connected with the buffering ash bin, the clean flue gas is discharged through the upper end of the dust remover.
The utility model has the main advantages that:
1. raw material grinding, Roots blower material conveying, atomizing nozzle spraying, combined Venturi tube reactor desulfurization reaction in the turbulent flow reactor, a buffering ash bin and a backflow Roots blower backflow complete device are adopted, wherein the grinding machine grinds the desulfurizer into powder below 25 mu m powder, the specific surface area of the desulfurizer can be increased, the atomizing nozzle spraying and turbulent flow reactor reaction improve the desulfurization effect, the Roots blower material conveying mode is adopted to reduce blocking, and the complete device is reasonable.
2. A special turbulent reactor device is adopted, a combined Venturi tube reactor and an upper and lower pattern plate mode are arranged in the turbulent reactor device, the turbulent mixing effect is good, the desulfurization efficiency is high, and the resistance is low.
3. And a buffer ash bin and a reflux Roots blower are adopted, and part of the ash which cannot fully react and contains the desulfurizer is circularly conveyed to the ash bin, so that the raw material consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention
In the figure: 1. the device comprises a storage bin, 2 parts of spiral metering and weighing, 3 parts of a grinding machine, 4 parts of a conveying Roots blower, 5 parts of an atomizing nozzle, 6 parts of a turbulent flow reactor, 7 parts of a combined Venturi tube reactor, 8 parts of a pattern plate, 9 parts of a flue, 10 parts of a dust remover, 11 parts of a buffering ash bin, 12 parts of a backflow Roots blower, 13 parts of flue gas, 14 parts of clean flue gas, 15 parts of an external ash discharge valve, 16 parts of circulating ash.
Detailed Description
A dry desulfurization complete process unit comprises: the device comprises a storage bin 1, a spiral metering weighing machine 2, a grinding machine 3, a conveying Roots blower 4, an atomizing nozzle 5, a turbulent flow reactor 6, a combined Venturi tube reactor 7, a pattern plate 8, a flue 9, a dust remover 10, a buffering ash bin 11, a backflow Roots blower 12, flue gas 13, clean flue gas 14, discharged ash 15 and circulating ash 16.
Solid granular sodium bicarbonate desulfurizer is stored by a storage bin 1 and is connected with a feed inlet of a spiral metering weighing feeder 2 through a feed inlet electric shutoff valve, the desulfurizer (sodium bicarbonate) is conveyed into a grinding machine 3 through the spiral metering weighing feeder 2 according to the required amount and is uniformly metered, the sodium bicarbonate granules are ground into 20-25 mu m powder through the grinding machine, the ground desulfurizer is sprayed into a 3-5 combined Venturi reactor 7 in a turbulent flow reactor 6 through an atomizing nozzle 5 by a conveying Roots blower 4, the deacidification agent is fully contacted and mixed by heat activation in the turbulent flow reactor 6, physical and chemical reactions occur, and SO in flue gas 13 is fully reacted2The acidic substances are absorbed and purified to form Na2SO3The purified flue gas 13 enters an ash hopper after being dedusted by a deduster 10, and part of the purified flue gas is discharged outside, and part of the purified flue gas is conveyed to a buffering ash bin 11 by a feeder and then is conveyed to a storage bin 1 by a reflux Roots blower 12 for storage and recycling.
The storage bin 1 is used for storing desulfurizer sodium bicarbonate, an electric valve is arranged at the outlet of the hopper, a spiral metering weighing feeder 2 is arranged at the lower part of the hopper, ground micro powder materials are conveyed to a turbulent flow reactor 6 through a pipeline of a conveying Roots blower 3, the turbulent flow reactor 6 is arranged on a flue according to the flow direction of flue gas 13, the sectional area is 2-3 times of the flue, the length is 3-5 meters, 3-5 combined venturi tube reactors 7 are arranged inside the turbulent flow reactor, and an upper floral plate and a lower floral plate 8 are arranged. The desulfurizer is laterally sprayed into the venturi tube reactor 7 through the N atomizing nozzles 5 to perform desulfurization reaction, the adopted turbulent flow reactor fully generates turbulent flow mixing with SO2 in the flue gas 13 to generate physical and chemical reaction, the mixing effect is good, acidic substances such as SO2 in the flue gas are absorbed and purified, the desulfurization efficiency is high, and the combined venturi tube reactor 7 can reduce resistance and reduce wear and blockage. The desulfurized flue gas 13 enters a subsequent bag-type dust remover 10, a buffering ash bin 11 is arranged at the lower part of an ash bucket of the dust remover 10, and part of circulating ash 16 which does not fully react and contains the desulfurizer is conveyed to the storage bin 1 by a backflow Roots blower 12, so that the raw material consumption is reduced.
Claims (1)
1. A dry desulfurization complete process unit is characterized in that: the method comprises the following steps: the device comprises a storage bin (1), a turbulent flow reactor (6), a combined Venturi tube reactor (7) and a dust remover (10), wherein the lower end of the storage bin (1) is connected with a spiral metering weighing feeder (2) and a grinding machine (3), a conveying roots fan (4) is arranged in a connecting pipeline of the grinding machine (3) and the turbulent flow reactor (6), the turbulent flow reactor (6) end of the connecting pipeline of the grinding machine (3) and the turbulent flow reactor (6) is connected with an atomizing nozzle (5), the turbulent flow reactor (6) is arranged on a flue according to the flow direction of flue gas (13), the lower end of the turbulent flow reactor (6) is connected with the combined Venturi tube reactor (7), flower plates (8) are arranged on the upper end and the lower end of the combined Venturi tube reactor (7), the lower end of the lower flower plate (8) is connected with the flue (9), and the other end of the flue (9) is connected with the dust remover (10), an outer ash discharge valve (15) and a buffering ash bin (11) are arranged at the lower end of the dust remover (10), a backflow Roots blower (12) is arranged in the buffering ash bin (11), circulating ash (16) is conveyed into the storage bin (1) through a pipeline connected with the buffering ash bin (11) and the storage bin (1), and clean smoke (14) is discharged through the upper end of the dust remover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023140994.7U CN214075953U (en) | 2020-12-23 | 2020-12-23 | Dry desulfurization complete process unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023140994.7U CN214075953U (en) | 2020-12-23 | 2020-12-23 | Dry desulfurization complete process unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214075953U true CN214075953U (en) | 2021-08-31 |
Family
ID=77432167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023140994.7U Active CN214075953U (en) | 2020-12-23 | 2020-12-23 | Dry desulfurization complete process unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214075953U (en) |
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2020
- 2020-12-23 CN CN202023140994.7U patent/CN214075953U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A complete process unit for dry desulfurization Effective date of registration: 20221212 Granted publication date: 20210831 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2022980026415 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20240103 Granted publication date: 20210831 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2022980026415 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A complete set of dry desulfurization process equipment Granted publication date: 20210831 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN BEST ENVIRONMENT EQUIPMENT Co.,Ltd. Registration number: Y2024980001872 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |