CN210874817U - High-efficient desulphurization unit of boiler tail gas - Google Patents
High-efficient desulphurization unit of boiler tail gas Download PDFInfo
- Publication number
- CN210874817U CN210874817U CN201921814216.6U CN201921814216U CN210874817U CN 210874817 U CN210874817 U CN 210874817U CN 201921814216 U CN201921814216 U CN 201921814216U CN 210874817 U CN210874817 U CN 210874817U
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- CN
- China
- Prior art keywords
- reaction tower
- tower body
- tail gas
- boiler tail
- lime slurry
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 43
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 33
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 33
- 239000004571 lime Substances 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000023556 desulfurization Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 3
- 239000000498 cooling water Substances 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 10
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 description 27
- 239000007789 gas Substances 0.000 description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 26
- 238000000034 method Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a high-efficiency boiler tail gas desulfurization device, which comprises a reaction tower body (1), wherein the top of the reaction tower body (1) is respectively provided with a rotary sprayer (2) and a gas outlet (3), the bottom of the reaction tower body (1) is provided with a conical hopper (4), one side of the conical hopper (4) is provided with a gas inlet (5) inclining upwards, and a guide plate (6) is arranged in the reaction tower body (1); the outer side of the rotary sprayer (2) is connected with a lime slurry inlet pipe (7), the end part of the lime slurry inlet pipe (7) is provided with a filter screen, and the outer side of the lime slurry inlet pipe (7) is connected with a washing water pipe (8). The utility model has the characteristics of the treatment effect is good, job stabilization nature is high.
Description
Technical Field
The utility model relates to a flue gas treatment device, especially a high-efficient desulphurization unit of boiler tail gas.
Background
The boiler of msw incineration power plant can discharge a large amount of flue gases in the course of the work, because contain heavy metal and harmful gas in this flue gas, need carry out neutralization reaction to the flue gas through processing apparatus to play the effect of dust removal and desulfurization. At present, a treatment device for the smoke is generally a spray desulfurization reaction tower, the smoke is introduced into the reaction tower from the lower part, and then lime slurry is sprayed into the reaction tower from the top through a sprayer, so that the smoke and the lime slurry can be contacted with each other to generate a neutralization reaction, and therefore, harmful components of the smoke form granular ash after the reaction and are removed in a subsequent dust removal process, and the treatment of the smoke is realized. However, the treatment method has the problems that the contact time of the lime slurry and the flue gas is short, so that harmful components in the flue gas cannot react sufficiently, and the treatment effect is poor. And because the lime slurry contains partial solid particles which are not completely stirred, the particles can be gradually deposited in the spraying pipeline of the sprayer along with the continuous operation of the sprayer, so that the pipeline inside the sprayer is blocked and corroded, and the working stability and the service life of the desulfurization reaction tower are reduced. Therefore, the existing desulfurization reaction device for treating the boiler flue gas has the problems of poor treatment effect and low working stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient desulphurization unit of boiler tail gas. It has the characteristics of good treatment effect and high working stability.
The technical scheme of the utility model: the high-efficiency boiler tail gas desulfurization device comprises a reaction tower body, wherein the top of the reaction tower body is respectively provided with a rotary sprayer and a gas outlet, the bottom of the reaction tower body is provided with a conical hopper, one side of the conical hopper is provided with a gas inlet which is inclined upwards, and a guide plate is arranged in the reaction tower body; the outer side of the rotary sprayer is connected with a lime slurry inlet pipe, the end part of the lime slurry inlet pipe is provided with a filter screen, and the outer side of the lime slurry inlet pipe is connected with a washing water pipe.
In the high-efficiency boiler tail gas desulfurization device, the guide plate is spirally arranged around the inner wall of the reaction tower body, and the gas outlet is arranged on the reaction tower body outside the guide plate.
Among the aforementioned high-efficient desulphurization unit of boiler tail gas, the reaction tower inner wall of gas outlet top is equipped with condenser tube, and condenser tube is the spiral along the guide plate and sets up the inner wall at the reaction tower, and the condenser tube lateral wall distributes and has a plurality of nozzles.
In the above boiler tail gas desulfurization device, the rotation direction of the nozzle of the rotary atomizer is opposite to the spiral flow direction of the flue gas.
In the boiler tail gas efficient desulfurization device, the gas outlet is provided with the temperature sensor.
Compared with the prior art, the utility model can lead the flue gas to flow upwards in a spiral manner along the inner wall of the reaction tower body after entering from the gas inlet through the matching of the gas inlet and the guide plate, and lead the lime slurry to flow in the opposite direction to the flue gas after being sprayed through the matching of the rotary sprayer and the guide plate, thereby effectively prolonging the reaction time of the lime slurry and the flue gas in the reaction tower body and improving the treatment effect of the utility model on the flue gas; through the matching of the lime slurry inlet pipe and the filter screen, the lime slurry can be filtered before entering the rotary sprayer, so that the problem that the pipeline of the rotary sprayer is directly blocked by large solid particles in the lime slurry after entering the rotary sprayer is effectively avoided, and the working stability of the rotary sprayer is improved; advance the wash water pipe that the pipe outside is connected through lime thick liquid, can also regularly advance pipe and rotatory atomizer with the running water from lime thick liquid and pour into to make the running water wash at the pipeline of the in-process pairing rotation atomizer that flows, effectively alleviate adhering to and the corruption that the lime thick liquid led to the fact the pipeline, further improved the utility model discloses a job stabilization nature.
Furthermore, the utility model discloses a cooperation of condenser tube and nozzle can also spray the cooling to it in the transportation process of flue gas to make the flue gas can reduce the temperature to suitable within range before contacting with lime slurry, improve the neutralization effect of lime slurry to the flue gas, the user can also observe the exit temperature of flue gas through temperature sensor, and then improves the regulation effect to flue gas temperature through adjustment condenser tube's inflow. Therefore, the utility model has the characteristics of the treatment effect is good, job stabilization nature is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figures are: 1-a reaction tower body, 2-a rotary sprayer, 3-a gas outlet, 4-a conical hopper, 5-a gas inlet, 6-a guide plate, 7-a lime slurry inlet pipe, 8-a flushing water pipe and 9-a cooling water pipe.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. The high-efficiency boiler tail gas desulfurization device comprises a reaction tower body 1, wherein a rotary sprayer 2 and a gas outlet 3 are respectively arranged on two sides of the top of the reaction tower body 1, a conical hopper 4 is arranged at the bottom of the reaction tower body 1, a gas inlet 5 which is inclined upwards is arranged on one side of the conical hopper 4, a slag hole is arranged at the bottom of the conical hopper 4, and a guide plate 6 is arranged in the reaction tower body 1; the outside of rotary atomizer 2 is connected with lime thick liquid and advances pipe 7, and lime thick liquid advances the pipe 7 tip and is equipped with the filter screen, and the outside that the lime thick liquid advances pipe 7 is connected with wash tub pipe 8.
The guide plate 6 is spirally arranged around the inner wall of the reaction tower body 1, and the gas outlet 3 is arranged on the reaction tower body 1 outside the guide plate 6 along the spiral direction of the guide plate 6.
The inner wall of the reaction tower body 1 above the gas outlet 3 is provided with a cooling water pipe 9, the outside of the cooling water pipe 9 is connected with a water pump and a flow controller, the cooling water pipe 9 is spirally arranged on the inner wall of the reaction tower body 1 along a guide plate 6, and the side wall of the cooling water pipe 9 is provided with a plurality of nozzles facing to the center of the reaction tower body 1.
The rotation direction of the nozzle of the rotary sprayer 2 is opposite to the spiral flow direction of the smoke, wherein the nozzle of the rotary sprayer 2 rotates anticlockwise along the axis, and the smoke flows upwards clockwise along the guide plate 6.
And a temperature sensor is arranged on the gas outlet 3.
The utility model discloses a theory of operation: after being discharged, flue gas generated by the boiler enters the reaction tower body 1 through the gas inlet 5 along the inclined direction, and flows towards the gas outlet 3 along the inner wall of the reaction tower body 1 in a spiral shape under the guiding action of the guide plate 6. In the flowing process of the flue gas, cooling water is sprayed out from a nozzle by cooling water pipes positioned around the middle part of the reaction tower body 1 to cool the flue gas, so that the flue gas is cooled to a proper temperature range; when the flue gas flows to the top of the reaction tower body 1, the lime slurry is rotationally sprayed out from the nozzle by the rotary sprayer 2, so that the lime slurry can form relative motion with the flue gas in the flowing process, the contact time of the lime slurry and the flue gas can be effectively prolonged, and the lime slurry and harmful components in the flue gas can be fully reacted. Part of large-particle ash residues formed after the reaction can fall to the conical hopper 4 at the bottom along the guide plate 6, so that the collection and the cleaning of operators are facilitated; most of ash slag is coiled in the flue gas and discharged to the subsequent dust removing equipment through the gas outlet 3, so that the subsequent equipment can conveniently process the flue gas. Operating personnel can also regularly advance pipe 7 with water through wash pipe 8 and lime mud and pour into rotary atomizer 2 into, make rotary atomizer 2 can play the mediation effect to the inner pipe way at the spraying in-process, avoid the lime mud to cause rotary atomizer 2's stifled pipe or corrosion problems after spraying for a long time, further improved the utility model discloses a job stabilization nature.
Claims (5)
1. High-efficient desulphurization unit of boiler tail gas, its characterized in that: the device comprises a reaction tower body (1), wherein the top of the reaction tower body (1) is respectively provided with a rotary sprayer (2) and a gas outlet (3), the bottom of the reaction tower body (1) is provided with a conical hopper (4), one side of the conical hopper (4) is provided with a gas inlet (5) inclining upwards, and a guide plate (6) is arranged in the reaction tower body (1); the outer side of the rotary sprayer (2) is connected with a lime slurry inlet pipe (7), the end part of the lime slurry inlet pipe (7) is provided with a filter screen, and the outer side of the lime slurry inlet pipe (7) is connected with a washing water pipe (8).
2. The high-efficiency desulfurization device for boiler tail gas according to claim 1, characterized in that: the guide plate (6) is spirally arranged around the inner wall of the reaction tower body (1), and the gas outlet (3) is arranged on the reaction tower body (1) outside the guide plate (6).
3. The high-efficiency desulfurization device for boiler tail gas according to claim 2, characterized in that: the reaction tower body (1) inner wall of gas outlet (3) top is equipped with cooling water pipe (9), and cooling water pipe (9) are the spiral along guide plate (6) and set up the inner wall at reaction tower body (1), and cooling water pipe (9) lateral wall distributes and has a plurality of nozzles.
4. The high-efficiency desulfurization device for boiler tail gas according to claim 2, characterized in that: the rotating direction of the nozzle of the rotary sprayer (2) is opposite to the spiral flowing direction of the smoke.
5. The high-efficiency desulfurization device for boiler tail gas according to claim 1, characterized in that: and a temperature sensor is arranged on the gas outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814216.6U CN210874817U (en) | 2019-10-25 | 2019-10-25 | High-efficient desulphurization unit of boiler tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814216.6U CN210874817U (en) | 2019-10-25 | 2019-10-25 | High-efficient desulphurization unit of boiler tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210874817U true CN210874817U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921814216.6U Active CN210874817U (en) | 2019-10-25 | 2019-10-25 | High-efficient desulphurization unit of boiler tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210874817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739165A (en) * | 2021-10-12 | 2021-12-03 | 浙江伟明环保股份有限公司 | Industry is useless burning furnace and flue gas processing apparatus admittedly |
| CN119345841A (en) * | 2024-11-15 | 2025-01-24 | 中海石油(中国)有限公司 | A high-efficiency dust removal device in a confined space |
-
2019
- 2019-10-25 CN CN201921814216.6U patent/CN210874817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739165A (en) * | 2021-10-12 | 2021-12-03 | 浙江伟明环保股份有限公司 | Industry is useless burning furnace and flue gas processing apparatus admittedly |
| CN119345841A (en) * | 2024-11-15 | 2025-01-24 | 中海石油(中国)有限公司 | A high-efficiency dust removal device in a confined space |
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