CN220609804U - CFB boiler flue gas processing apparatus - Google Patents
CFB boiler flue gas processing apparatus Download PDFInfo
- Publication number
- CN220609804U CN220609804U CN202321960992.3U CN202321960992U CN220609804U CN 220609804 U CN220609804 U CN 220609804U CN 202321960992 U CN202321960992 U CN 202321960992U CN 220609804 U CN220609804 U CN 220609804U
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- Prior art keywords
- flue gas
- shell
- pipe
- bin
- pretreatment
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- 239000003546 flue gas Substances 0.000 title claims abstract description 73
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000005192 partition Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 abstract description 16
- 238000000926 separation method Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 3
- -1 flue gas sulfides Chemical class 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a CFB boiler flue gas treatment device which comprises a shell, a smoke spraying ring, a nozzle, spray heads, separation plates, an external water pipe, a flue gas pretreatment structure and a circulating treatment structure, wherein the bottom of the shell is provided with a liquid discharge pipe, the top of the shell is provided with an exhaust pipe, the smoke spraying ring is arranged below the inside of the shell, the nozzle is arranged on the inner side wall of the smoke spraying ring, the separation plates are provided with a plurality of groups, the separation plates are alternately arranged on the inner side wall of the shell at intervals, the separation plates are arranged along the height direction, the spray heads are provided with a plurality of groups, the spray heads are uniformly arranged at the bottom of the multi-component separation plates, and the external water pipe is arranged on the side wall of the shell and connected with the spray heads. The utility model relates to the technical field of boiler equipment, and particularly provides a CFB boiler flue gas treatment device which is reasonable and simple in structure, can treat flue gas sulfides efficiently and has detection and circulation treatment functions.
Description
Technical Field
The utility model relates to the technical field of boiler equipment, in particular to a CFB boiler flue gas treatment device.
Background
The CFB boiler is a novel efficient, clean and environment-friendly coal-fired boiler. The fluidized bed combustion technology is adopted, a combustion bed with fluidization is formed in the boiler, the mixing and circulating fluidization of fuel, air and combustion products are realized, the utilization rate of the fuel is improved, and the discharged pollutants can be effectively controlled. The CFB boiler has the advantages of energy conservation, high efficiency, stability, low operation and maintenance cost and the like, and is widely applied to the fields of industry, electric power, heating power and the like. The flue gas contains a large amount of sulfides, desulfurization treatment is needed, and through searching, a CFB boiler flue gas treatment device of publication No. CN216321096U, through the cooperation setting of intake pipe, spray assembly, flue gas rabbling mechanism and reflux mechanism, the convection speed of increase flue gas and desulfurizing agent for desulfurizing agent fully contacts with the flue gas, improves the utilization ratio of desulfurizing agent, reaches the effect that improves the flue gas desulfurization rate. In the practical scheme, the flue gas and the desulfurizing agent are mixed simply through the flue gas stirring mechanism, so that the efficiency is low, and the functions of detecting and recycling the treated flue gas are absent.
Disclosure of Invention
Aiming at the situation, in order to make up the prior defects, the utility model provides the CFB boiler flue gas treatment device which has reasonable and simple structure, can treat flue gas sulfides with high efficiency and has the functions of detection and circulation treatment.
The utility model provides the following technical scheme: the utility model provides a CFB boiler flue gas treatment device which comprises a shell, a flue gas spraying ring, a nozzle, spray heads, separation plates, an external water pipe, a flue gas pretreatment structure and a circulating treatment structure, wherein the bottom of the shell is provided with a liquid discharge pipe, the top of the shell is provided with an exhaust pipe, the flue gas spraying ring is arranged below the inside of the shell, the nozzle is arranged on the inner side wall of the flue gas spraying ring, the separation plates are provided with a plurality of groups, the separation plates are alternately arranged on the inner side wall of the shell at intervals, the separation plates are arranged along the height direction, the spray heads are provided with a plurality of groups, the spray heads are uniformly distributed at the bottom of the multi-component separation plates, the external water pipe is arranged on the side wall of the shell and is connected with the spray heads, the side wall of the shell is provided with an air inlet, the flue gas spraying ring is communicated with the nozzle, the flue gas pretreatment structure is arranged on the outer wall of the shell and is correspondingly arranged with the air inlet, and the circulating treatment structure is arranged on the top of the shell.
In order to carry out pretreatment to bigger granule suspended impurity in the flue gas, reduce the influence of impurity to flue gas treatment, flue gas pretreatment structure includes pretreatment storehouse, intake pipe, filter screen and heater strip, the shell lateral wall is located in the pretreatment storehouse and is linked together with the shell is inside through the air inlet, the intake pipe is located the pretreatment storehouse lateral wall and is linked together with the pretreatment storehouse, the filter screen is located in the pretreatment storehouse, the heater strip is located in the pretreatment storehouse and is located filter screen one side.
In order to enable the CFB boiler flue gas treatment device to have the function of detecting the treated flue dust, the flue gas which does not meet emission standards can be circularly treated at the same time, the circulating treatment structure comprises flue gas detection equipment, a circulating treatment pipe, a heating bin, a flow equalizing plate and a heating block, wherein the flue gas detection equipment is arranged at the top of the shell, the detection end of the flue gas detection equipment is inserted into the shell, the heating bin is arranged on the inner side wall of the shell and above the separation plate, the flow equalizing plate is arranged at the bottom of the heating bin, a plurality of groups of ventilation through holes are uniformly distributed on the flow equalizing plate, the heating block is arranged on the inner side wall of the heating bin, one end of the circulating treatment pipe is arranged on the side wall of the shell and is connected with the inside of the heating bin, and the other end of the circulating treatment pipe is communicated with the inside of the pretreatment bin.
Further, the filter screen is provided with a plurality of groups.
Preferably, the nozzles are uniformly distributed with a plurality of groups by taking the central axis of the smoke spraying ring as the center of a circle.
Further, solenoid valves are arranged on the circulation treatment pipe, the exhaust pipe, the external water pipe and the air inlet pipe.
Preferably, the front side wall of the shell is provided with a control display screen, and the electromagnetic valve and the smoke detection equipment are electrically connected with the control display screen.
The CFB boiler flue gas treatment device provided by the utility model has the beneficial effects that the structure is adopted:
(1) The flue gas pretreatment structure can be used for pretreating larger particles in the flue gas to suspend impurities and organic impurities, so that the influence of the impurities is reduced, and the reaction efficiency with the neutralization solution is improved;
(2) The smoke and dust are discharged into the shell to be uniformly dispersed through the cooperation of the smoke spraying ring and the spray nozzle, so that the spray neutralization is facilitated, and the smoke and dust discharge stroke is increased through the cooperation of the plurality of groups of spray heads and the partition plate, so that the spray time is increased, and the spray is more sufficient;
(3) The circulation processing structure can heat and dry the flue gas after the spraying processing and detect the emission quality, and the flue gas which meets the emission requirement can be discharged through the exhaust pipe, and the flue gas which does not meet the emission requirement can enter the pretreatment bin through the circulation processing pipe for circulation processing.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a CFB boiler flue gas treatment device according to the present utility model;
FIG. 2 is a schematic perspective view of a flue gas treatment device for a CFB boiler according to the present utility model;
fig. 3 is a schematic diagram of a smoke ring and a nozzle of a CFB boiler smoke treatment device according to the present utility model.
Wherein, 1, a shell, 2, a smoke spraying ring, 3, a nozzle, 4, a spray header, 5, a partition plate, 6, an external water pipe, 7, a smoke pretreatment structure, 8, a circulation treatment structure, 9, a liquid discharge pipe, 10, an exhaust pipe, 11 and a pretreatment bin, 12, an air inlet pipe, 13, a filter screen, 14, heating wires, 15, smoke detection equipment, 16, a circulating treatment pipe, 17, a heating bin, 18, a flow equalizing plate, 19, a heating block, 20, a ventilation through hole, 21 and a control display screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 3, the technical scheme adopted by the utility model is as follows: the utility model provides a CFB boiler flue gas processing apparatus, including shell 1, the smoke ring 2, the nozzle 3, the shower head 4, division board 5, external water pipe 6, flue gas pretreatment structure 7 and circulation processing structure 8, shell 1 bottom is equipped with fluid-discharge tube 9, shell 1 top is equipped with blast pipe 10, the below in shell 1 is located to the smoke ring 2, the inside wall of smoke ring 2 is located to nozzle 3, division board 5 is equipped with the multiunit, multiunit division board 5 interval is crisscross to be located shell 1 inside wall, division board 5 sets up along the direction of height, shower head 4 is equipped with the multiunit, multiunit shower head 4 equipartition is located multiunit division board 5 bottom, external water pipe 6 is located shell 1 lateral wall and is connected with multiunit shower head 4, shell 1 lateral wall is equipped with the air inlet, the air inlet is linked together through smoke ring 2 and nozzle 3, flue gas pretreatment structure 7 locates shell 1 outer wall and corresponds the setting with the air inlet, circulation processing structure 8 locates shell 1 top.
As shown in fig. 2, the flue gas pretreatment structure 7 comprises a pretreatment bin 11, an air inlet pipe 12, a filter screen 13 and a heating wire 14, wherein the pretreatment bin 11 is arranged on the side wall of the shell 1 and is communicated with the interior of the shell 1 through an air inlet, the air inlet pipe 12 is arranged on the side wall of the pretreatment bin 11 and is communicated with the pretreatment bin 11, the filter screen 13 is arranged in the pretreatment bin 11, and the heating wire 14 is arranged in the pretreatment bin 11 and is positioned on one side of the filter screen 13.
As shown in fig. 2, the circulation processing structure 8 comprises a flue gas detection device 15, a circulation processing pipe 16, a heating bin 17, a flow equalizing plate 18 and a heating block 19, wherein the flue gas detection device 15 is arranged at the top of the shell 1, the detection end of the flue gas detection device 15 is inserted into the shell 1, the heating bin 17 is arranged on the inner side wall of the shell 1 and above the partition plate 5, the flow equalizing plate 18 is arranged at the bottom of the heating bin 17, a plurality of groups of ventilation through holes 20 are uniformly distributed on the flow equalizing plate 18, the heating block 19 is arranged on the inner side wall of the heating bin 17, one end of the circulation processing pipe 16 is arranged on the side wall of the shell 1 and is connected with the inside of the heating bin 17, and the other end of the circulation processing pipe 16 is communicated with the inside of the pretreatment bin 11.
As shown in fig. 2, the filter screen 13 is provided with a plurality of groups.
As shown in fig. 3, the nozzles 3 are uniformly distributed with a plurality of groups by taking the central axis of the smoke ring 2 as the center of a circle.
Wherein, solenoid valves are arranged on the circulation processing pipe 16, the exhaust pipe 10, the external water pipe 6 and the air inlet pipe 12. The front side wall of the shell 1 is provided with a control display screen 21, and the electromagnetic valve and the smoke detection equipment 15 are electrically connected with the control display screen 21.
When the flue gas is specifically used, the flue gas enters the pretreatment bin 11 through the air inlet pipe 12, larger particle impurities and organic matter impurities are treated through the filter screen 13 and the heating wire 14, then the flue gas is sprayed out of the nozzle 3 through the smoke spraying ring 2, the electromagnetic valve of the external water pipe 6 is opened, the desulfurizing agent is sprayed out through the spray header 4 to fully react with sulfide in the flue gas, the flue gas moves upwards along a cavity formed by the multi-component partition plate 5, the flue gas enters the heating bin 17 through the flow equalizing plate 18, the flue gas is dried through the heating block 19, the flue gas after the treatment is detected through the flue gas detection device 15, the flue gas can be discharged through the exhaust pipe 10 according to the discharge requirements, and the flue gas which does not meet the discharge requirements can enter the pretreatment bin 11 through the circulating treatment pipe 16 to carry out circulating treatment.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A CFB boiler flue gas treatment device, characterized in that: including shell, smoke ring, nozzle, shower head, division board, external water pipe, flue gas pretreatment structure and circulation processing structure, the shell bottom is equipped with the fluid-discharge tube, the shell top is equipped with the blast pipe, the below in the shell is located to the smoke ring, the nozzle is located the interior lateral wall of smoke ring, the division board is equipped with the multiunit, the multiunit the division board interval is crisscross to be located the shell inside wall, the division board sets up along the direction of height, the shower head is equipped with the multiunit, the multiunit the shower head equipartition is located multicomponent baffle bottom, external water pipe is located the shell lateral wall and is connected with multiunit shower head, the shell lateral wall is equipped with the air inlet, the air inlet smoke ring is linked together with the nozzle, flue gas pretreatment structure locates the shell outer wall and corresponds the setting with the air inlet, circulation processing structure locates the shell top.
2. A CFB boiler flue gas treatment device according to claim 1, wherein: the flue gas pretreatment structure comprises a pretreatment bin, an air inlet pipe, a filter screen and a heating wire, wherein the pretreatment bin is arranged on the side wall of the shell and is communicated with the inside of the shell through an air inlet, the air inlet pipe is arranged on the side wall of the pretreatment bin and is communicated with the pretreatment bin, the filter screen is arranged in the pretreatment bin, and the heating wire is arranged in the pretreatment bin and is positioned on one side of the filter screen.
3. A CFB boiler flue gas treatment device according to claim 2, wherein: the circulating treatment structure comprises a flue gas detection device, a circulating treatment pipe, a heating bin, a flow equalizing plate and a heating block, wherein the flue gas detection device is arranged at the top of the shell, the detection end of the flue gas detection device is inserted into the shell, the heating bin is arranged on the inner side wall of the shell and above the partition plate, the flow equalizing plate is arranged at the bottom of the heating bin, a plurality of groups of ventilation through holes are uniformly distributed on the flow equalizing plate, the heating block is arranged on the inner side wall of the heating bin, one end of the circulating treatment pipe is arranged on the side wall of the shell and is connected with the inside of the heating bin, and the other end of the circulating treatment pipe is communicated with the inside of the pretreatment bin.
4. A CFB boiler flue gas treatment device according to claim 3, wherein: the filter screen is provided with a plurality of groups.
5. A CFB boiler flue gas treatment device according to claim 4, wherein: the nozzles are uniformly distributed with a plurality of groups by taking the central axis of the smoke spraying ring as the circle center.
6. A CFB boiler flue gas treatment device according to claim 5, wherein: and electromagnetic valves are arranged on the circulating treatment pipe, the exhaust pipe, the external water pipe and the air inlet pipe.
7. A CFB boiler flue gas treatment device according to claim 6, wherein: the shell front side wall is equipped with the control display screen, solenoid valve and flue gas check out test set all with control display screen electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321960992.3U CN220609804U (en) | 2023-07-25 | 2023-07-25 | CFB boiler flue gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321960992.3U CN220609804U (en) | 2023-07-25 | 2023-07-25 | CFB boiler flue gas processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220609804U true CN220609804U (en) | 2024-03-19 |
Family
ID=90214819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321960992.3U Active CN220609804U (en) | 2023-07-25 | 2023-07-25 | CFB boiler flue gas processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220609804U (en) |
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2023
- 2023-07-25 CN CN202321960992.3U patent/CN220609804U/en active Active
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