CN220573098U - Solid desulfurization and denitrification device - Google Patents
Solid desulfurization and denitrification device Download PDFInfo
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- CN220573098U CN220573098U CN202420278306.2U CN202420278306U CN220573098U CN 220573098 U CN220573098 U CN 220573098U CN 202420278306 U CN202420278306 U CN 202420278306U CN 220573098 U CN220573098 U CN 220573098U
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- pipeline
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- regulating valve
- bin
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 32
- 230000023556 desulfurization Effects 0.000 title claims abstract description 32
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 70
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002250 absorbent Substances 0.000 claims abstract description 24
- 230000002745 absorbent Effects 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 23
- 239000007800 oxidant agent Substances 0.000 claims abstract description 19
- 230000001590 oxidative effect Effects 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 16
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 239000007790 solid phase Substances 0.000 claims abstract description 8
- 239000012071 phase Substances 0.000 claims abstract description 6
- 238000000889 atomisation Methods 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 abstract description 33
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of waste gas purification, and particularly relates to a solid desulfurization and denitrification device. The device comprises a waste heat boiler, wherein the waste heat boiler is connected with a reaction tower through a pipeline, and a first windshield and a temperature monitoring device are arranged on the pipeline; the outlet of the reaction tower is connected with a dust remover through a pipeline, the gas phase outlet of the dust remover is connected with a fan through a pipeline, and the solid phase outlet of the dust remover is respectively connected with the reaction tower and a storage box through a pipeline; the outlet of the fan is connected with the chimney through a pipeline, the outlet of the fan is also connected with the inlet of the reaction tower through a pipeline, and a second windshield is arranged on the pipeline; the device also comprises a water tank, an oxidant bin and an absorbent bin, wherein the water tank, the oxidant bin and the absorbent bin are respectively communicated with the inside of the reaction tower through pipelines, and a first regulating valve, a second regulating valve and a third regulating valve are respectively arranged on the pipelines. The device has the advantages of simple structure, stable operation, high energy utilization efficiency and economic benefit improvement while realizing efficient desulfurization and denitrification treatment, and good market application prospect.
Description
Technical Field
The utility model belongs to the technical field of waste gas purification, and particularly relates to a solid desulfurization and denitrification device.
Background
With the rapid development of industrialization, a large amount of exhaust gas emissions become serious environmental problems. Among them, sulfur and nitrogen oxides in exhaust gas are major pollutants, which pose serious threats to the atmosphere, human health and ecosystem, so that development of efficient and reliable desulfurization and denitrification technologies is urgent.
The traditional desulfurization and denitrification method has the problems of high energy consumption, low treatment efficiency, secondary pollution and the like. In recent years, although some new desulfurization and denitrification technologies are presented, many challenges are still faced in practical applications, such as complexity of treatment equipment, high running cost, unstable treatment effect, etc.
Disclosure of Invention
According to the defects in the prior art, the utility model aims to provide the solid desulfurization and denitrification device which is simple in structure and stable in operation, realizes high-efficiency desulfurization and denitrification treatment, improves energy utilization efficiency and economic benefit, and has good market application prospect and environmental protection value.
The utility model is realized by adopting the following technical scheme:
the solid desulfurization and denitrification device comprises a waste heat boiler, utilizes waste heat in waste gas to generate steam or hot water, realizes energy recovery, reduces the temperature of the waste gas, and provides proper reaction conditions for subsequent treatment; the waste heat boiler is connected with the reaction tower through a pipeline, a first windshield and a temperature monitoring device are arranged on the pipeline, the first windshield is used for adjusting and controlling the flow of waste gas entering the reaction tower, the desulfurization and denitrification reaction in the reaction tower can be ensured to be stably carried out, the temperature monitoring device can monitor the temperature of the waste gas in the pipeline in real time and transmit signals to a PLC control system, the reaction tower provides a main place for desulfurization and denitrification reaction, and the waste gas is subjected to chemical reaction with an absorbent and an oxidant to remove sulfur and nitrogen oxides in the waste gas; the outlet of the reaction tower is connected with a dust remover through a pipeline to remove particles in the waste gas; the gas phase outlet of the dust remover is connected with the fan through a pipeline to provide airflow power required by the whole device, so that the waste gas can smoothly pass through each treatment unit; the solid phase outlet of the dust remover is respectively connected with the reaction tower and the storage box through a pipeline, after the unreacted absorbent in the waste gas is trapped, the waste gas and the absorbent added in the absorbent bin enter the reaction tower together to continuously participate in the cyclic reaction, and the byproduct after the reaction enters the storage box; the outlet of the fan is connected with the chimney through a pipeline, the outlet of the fan is also connected with the inlet of the reaction tower through a pipeline, a second windshield is arranged on the pipeline, when the amount of waste gas entering the reaction tower is small, the waste gas is purified to supplement, the flow and the flow velocity of the waste gas in the device are ensured, the second windshield is used for adjusting the flow of the purified waste gas, and the air flow in the reaction tower is ensured to be stable; the desulfurization and denitrification device further comprises a water tank, an oxidant bin and an absorbent bin, wherein the water tank, the oxidant bin and the absorbent bin are used for respectively storing water, the oxidant and the absorbent, the water tank, the oxidant bin and the absorbent bin are respectively communicated with the inside of the reaction tower through pipelines, a first regulating valve, a second regulating valve and a third regulating valve are respectively arranged on the pipelines, and the substances are conveyed into the reaction tower through the pipelines and the regulating valves to participate in desulfurization and denitrification reactions.
The temperature monitoring device and the first regulating valve are electrically connected through the PLC control system, and the water inflow is regulated according to the temperature of the waste gas at the inlet of the reaction tower, so that the cooling effect of the waste gas is guaranteed.
The second regulating valve and the third regulating valve are electrically connected through the PLC control system, so that the proportion of the oxidant to the absorbent is controlled, and a better reaction effect is achieved.
The first windshield and the second windshield are electrically connected through the PLC control system, so that automatic adjustment of the exhaust gas flow in the device is realized, and the stability of the exhaust gas flow in the device is ensured.
The pipeline outlet from the water tank to the reaction tower is provided with a spiral atomization nozzle, water in the water tank is atomized into fine water drops, the contact area between the water and waste gas is increased, and the efficiency of desulfurization and denitrification reaction is improved.
The top of reaction tower be equipped with the baffle, through the baffle block, increase the stroke of waste gas in the reaction tower for waste gas fully reacts in the reaction tower, improves purifying effect.
Compared with the prior art, the utility model has the following beneficial effects:
according to the solid desulfurization and denitrification device, the recycling of energy in the waste gas is realized through the waste heat boiler, so that the temperature of the waste gas is reduced, a proper reaction condition is provided for subsequent treatment, the recycling of energy is realized, and the energy waste is remarkably reduced. In the treatment process, the flow of the waste gas entering the reaction tower is ensured to be stable through the monitoring and the adjustment of the PLC control system, so that the desulfurization and denitrification reaction can be ensured to be carried out stably and efficiently. Meanwhile, various parameters in the reaction process, such as temperature, water inflow, proportion of oxidant and absorbent and the like, are monitored and regulated in real time, so that the desulfurization and denitrification reaction reaches the optimal state. In addition, when the exhaust gas quantity is insufficient, the device can also automatically supplement the purified exhaust gas, so that the air flow in the device is ensured to be stable all the time. The solid desulfurization and denitrification device not only realizes efficient desulfurization and denitrification treatment, but also improves the energy utilization efficiency and economic benefit, and has good market application prospect and environmental protection value.
Drawings
FIG. 1 is a schematic structural diagram of a solid-state desulfurization and denitrification device according to the utility model;
in the figure: 1. a waste heat boiler; 2. a reaction tower; 3. a first windshield; 4. a temperature monitoring device; 5. a dust remover; 6. a blower; 7. a storage tank; 8. a chimney; 9. a second windshield; 10. a water tank; 11. an oxidant bin; 12. an absorbent bin; 13. a first regulating valve; 14. a second regulating valve; 15. a third regulating valve; 16. a spiral atomizing nozzle; 17. and a baffle.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects and technical solutions of the present utility model more apparent.
Example 1
As shown in FIG. 1, the solid desulfurization and denitrification device comprises a waste heat boiler 1, wherein the waste heat boiler 1 is connected with a reaction tower 2 through a pipeline, and a first windshield 3 and a temperature monitoring device 4 are arranged on the pipeline; the outlet of the reaction tower 2 is connected with a dust remover 5 through a pipeline, the gas phase outlet of the dust remover 5 is connected with a fan 6 through a pipeline, and the solid phase outlet of the dust remover 5 is respectively connected with the reaction tower 2 and a storage box 7 through a pipeline; the outlet of the fan 6 is connected with the chimney 8 through a pipeline, the outlet of the fan 6 is also connected with the inlet of the reaction tower 2 through a pipeline, and a second windshield 9 is arranged on the pipeline; the device also comprises a water tank 10, an oxidant bin 11 and an absorbent bin 12, wherein the water tank 10, the oxidant bin 11 and the absorbent bin 12 are respectively communicated with the inside of the reaction tower 2 through pipelines, and a first regulating valve 13, a second regulating valve 14 and a third regulating valve 15 are respectively arranged on the pipelines.
The temperature monitoring device 4 is electrically connected with the first regulating valve 13 through a PLC control system.
The second regulating valve 14 and the third regulating valve 15 are electrically connected through a PLC control system.
The first windshield 3 and the second windshield 9 are electrically connected through a PLC control system.
The outlet of the pipeline from the water tank 10 to the reaction tower 2 is provided with a spiral atomization spray nozzle 16.
A baffle 17 is arranged above the reaction tower 2.
During working, the specific steps are as follows:
(1) The exhaust gas is first introduced into the exhaust-heat boiler 1, in which step the residual heat in the exhaust gas is effectively recovered for the generation of steam or hot water, not only enabling the reuse of energy, but also reducing the temperature of the exhaust gas, providing suitable reaction conditions for the subsequent treatment.
(2) Waste gas after waste heat recovery enters the reaction tower 2 through a pipeline, and a first windshield 3 arranged on the pipeline is used for adjusting and controlling the flow of the waste gas entering the reaction tower 2, so that the desulfurization and denitrification reaction can be stably carried out. Meanwhile, the temperature monitoring device 4 monitors the temperature of the waste gas in real time and transmits signals to the PLC control system, and the PLC control system adjusts the opening of the first regulating valve 13 according to the received temperature signals and controls the water quantity entering the reaction tower 2 so as to further ensure the cooling effect of the waste gas.
(3) In the reaction tower 2, the exhaust gas chemically reacts with the absorbent from the absorbent bin 12 and the oxidizer from the oxidizer bin 11. These chemicals are fed into the reaction column 2 through pipes and corresponding regulating valves (No. two regulating valves 14 and No. three regulating valves 15). The PLC control system adjusts the proportion of the oxidant and the absorbent according to the set parameters so as to achieve the optimal reaction effect. During the reaction, sulfur and nitrogen oxides in the exhaust gas are effectively removed.
(4) The waste gas after desulfurization and denitrification reaction enters a dust remover 5 to remove particles. The dust remover 5 ensures the cleanliness of the exhaust gas by capturing solid particles in the exhaust gas.
(5) The exhaust gas treated by the dust remover 5 is divided into a gas phase and a solid phase. The gas phase part enters the fan 6 through a pipeline to provide the airflow power required by the whole device. The solid phase part, including the unreacted complete absorbent, is captured and then added back to the reaction tower 2 through the pipeline, and the solid phase part and the new absorbent continue to participate in the circulating reaction. Further, when the amount of exhaust gas entering the reaction tower 2 is small, the make-up is performed by purifying the exhaust gas. The second windshield 9 is used for adjusting the flow of the purified waste gas and ensuring the stable air flow in the reaction tower 2. The by-products generated after the completion of the solid phase partial reaction enter the storage tank 7 through a pipeline for centralized treatment.
(6) The final treated exhaust gas is discharged through the outlet duct of the fan 6 into the stack 8 and safely discharged to the atmosphere.
(7) The water tank 10, the oxidant bin 11 and the absorbent bin 12 continue to supply the required water, oxidant and absorbent to the reaction column 2 throughout operation. Particularly, a spiral atomization spray nozzle 16 is arranged at the outlet of the pipeline from the water tank 10 to the reaction tower 2, so that water can be atomized into fine water drops, the contact area of the water and waste gas is increased, and the efficiency of desulfurization and denitrification reaction is improved. Meanwhile, the baffle 17 above the reaction tower 2 is designed to increase the travel of the waste gas in the tower, so that the waste gas can fully react, and the purification effect is improved.
Claims (6)
1. The solid desulfurization and denitrification device is characterized by comprising a waste heat boiler (1), wherein the waste heat boiler (1) is connected with a reaction tower (2) through a pipeline, and a first windshield (3) and a temperature monitoring device (4) are arranged on the pipeline; the outlet of the reaction tower (2) is connected with a dust remover (5) through a pipeline, the gas phase outlet of the dust remover (5) is connected with a fan (6) through a pipeline, and the solid phase outlet of the dust remover (5) is respectively connected with the reaction tower (2) and a storage box (7) through a pipeline; the outlet of the fan (6) is connected with the chimney (8) through a pipeline, the outlet of the fan (6) is also connected with the inlet of the reaction tower (2) through a pipeline, and a second windshield (9) is arranged on the pipeline; the device also comprises a water tank (10), an oxidant bin (11) and an absorbent bin (12), wherein the water tank (10), the oxidant bin (11) and the absorbent bin (12) are respectively communicated with the inside of the reaction tower (2) through pipelines, and a first regulating valve (13), a second regulating valve (14) and a third regulating valve (15) are respectively arranged on the pipelines.
2. The solid desulfurization and denitrification device according to claim 1, wherein the temperature monitoring device (4) and the first regulating valve (13) are electrically connected through a PLC control system.
3. The solid desulfurization and denitrification device according to claim 1, wherein the second regulating valve (14) and the third regulating valve (15) are electrically connected through a PLC control system.
4. The solid desulfurization and denitrification device according to claim 1, wherein the first windshield (3) and the second windshield (9) are electrically connected through a PLC control system.
5. The solid desulfurization and denitrification device according to claim 1, wherein a spiral atomization nozzle (16) is arranged at the outlet of the pipeline from the water tank (10) to the reaction tower (2).
6. The solid desulfurization and denitrification device according to claim 1, wherein a baffle (17) is arranged above the reaction tower (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420278306.2U CN220573098U (en) | 2024-02-05 | 2024-02-05 | Solid desulfurization and denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420278306.2U CN220573098U (en) | 2024-02-05 | 2024-02-05 | Solid desulfurization and denitrification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220573098U true CN220573098U (en) | 2024-03-12 |
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ID=90114559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420278306.2U Active CN220573098U (en) | 2024-02-05 | 2024-02-05 | Solid desulfurization and denitrification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220573098U (en) |
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2024
- 2024-02-05 CN CN202420278306.2U patent/CN220573098U/en active Active
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