CN219828820U - Novel catalyst jetting device for circulating fluidized bed boiler - Google Patents
Novel catalyst jetting device for circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN219828820U CN219828820U CN202321028645.7U CN202321028645U CN219828820U CN 219828820 U CN219828820 U CN 219828820U CN 202321028645 U CN202321028645 U CN 202321028645U CN 219828820 U CN219828820 U CN 219828820U
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- CN
- China
- Prior art keywords
- furnace body
- fluidized bed
- circulating fluidized
- bed boiler
- worm
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- 239000003054 catalyst Substances 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 241000270295 Serpentes Species 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 abstract description 22
- 239000006028 limestone Substances 0.000 abstract description 22
- 239000000843 powder Substances 0.000 abstract description 20
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 238000006477 desulfuration reaction Methods 0.000 abstract description 9
- 230000023556 desulfurization Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 150000003568 thioethers Chemical class 0.000 description 6
- 238000007664 blowing Methods 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to the technical field of blowers, in particular to a novel catalyst blower for a circulating fluidized bed boiler. Its technical scheme includes workbin, conveyor fan, furnace body, conveyer pipe, installing frame, pivot and motor, the furnace body outer wall has cup jointed the pot body, the inside conveyer pipe that is provided with of furnace body, furnace body one side is provided with conveyor fan, conveyor fan top one side is provided with the workbin, conveyor fan one end is provided with the air supply pipe, the inside embedding of furnace body one end is installed the installing frame, the inside pivot that is provided with of installing frame, the pivot outer wall has cup jointed the worm wheel, pivot one end outer wall is provided with the pivoted sheet, the installing frame rear end is provided with the motor, motor one end is provided with the worm. According to the utility model, the rotating plate is arranged at the output end of the jetting device to rotate and flap the limestone powder, the powder is diffused to the periphery in a rotary flow shape, the contact surface with the combustion medium is increased, and the desulfurization effect of the combustion medium in the circulating fluidized bed boiler is improved.
Description
Technical Field
The utility model relates to the technical field of blowers, in particular to a novel catalyst blower for a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler has the main structural characteristics that a material circulating system consists of a wind distribution device, a combustion chamber, a gas-solid separator, a feed back device, an ignition device and other devices, a great amount of sulfides can be generated in combustion substances in the boiler, and a desulfurization catalyst limestone powder is blown by a blowing device to react with the sulfides for desulfurization.
The circulating fluidized bed boiler comprises a boiler body and auxiliary equipment: the boiler body mainly comprises a starting burner, an air chamber, an air distribution device, a hearth, a gas-solid separator, a material returning device, a steam drum, a down pipe, a water cooling wall, a superheater, an economizer, an air preheater and the like. The auxiliary equipment mainly comprises a blower, a draught fan, a returning blower, a crusher, a coal feeder, a slag cooler, a dust remover, desulfurization and denitrification equipment, a chimney and the like.
A large amount of sulfides generated after the combustion of fuel in the furnace body are desulfurized through the reaction of the limestone powder and sulfides of the desulfurization catalyst by the blowing device, limestone is directly blown into the furnace body and is horizontally conveyed, so that the contact amount of combustion media in the upper end of the furnace body and the limestone powder is small, the limestone powder cannot be uniformly distributed in the combustion media, the desulfurization effect is reduced, and the novel catalyst blowing device of the circulating fluidized bed boiler is provided for solving the existing problems.
Disclosure of Invention
The utility model aims to solve the problems in the background art and provides a novel catalyst sprayer for a circulating fluidized bed boiler.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel catalyst jetting ware of circulating fluidized bed boiler, includes workbin, conveyor fan, furnace body, conveyer pipe, installing frame, pivot and motor, the pot body has been cup jointed to the furnace body outer wall, the inside conveyer pipe that is provided with of furnace body, furnace body one side is provided with conveyor fan, conveyor fan top one side is provided with the workbin, conveyor fan one end is provided with the air pipe, the installing frame is installed to the inside embedding of furnace body one end, the inside pivot that is provided with of installing frame, the worm wheel has been cup jointed to the pivot outer wall, pivot one end outer wall is provided with the swiveling plate that the equidistance distributes, the installing frame rear end is provided with the motor, motor one end is provided with the worm.
The conveying fan extracts outside air into the conveying pipe, the conveying pipe positioned at the inner part of the furnace body is heated by combustion media and exchanges heat with the extracted air, the feed box conveys limestone powder into the air supply pipe, limestone powder is sprayed into the furnace body under the action of extraction airflow, the motor operates to drive the worm to rotate inside the sealing ring, the worm is meshed with the turbine in a rotating way to drive the worm wheel to rotate, the driving rotating plate rotates and beats limestone powder, and the limestone powder is in a rotational flow shape under the action of airflow and is diffused all around and uniformly distributed inside the furnace body.
Preferably, the conveying pipe is in a snake shape, two ends of the conveying pipe penetrate through the furnace body, the air inlet end of the conveying fan is in a closed shape, and one end of the conveying pipe penetrates through the air inlet end of the conveying fan. The serpentine conveying pipe extends the travel of air flow, the air inlet end of the closed conveying fan is provided with a suction force which is effectively guided into the conveying pipe.
Preferably, the upper end of the furnace body is provided with an exhaust pipe, and the upper end of the exhaust pipe penetrates through the pot body. The extension generated by the combustion matters in the furnace body is output through the exhaust pipe.
Preferably, one end of the air supply pipe is inserted into the mounting frame. The gas conveyed by the conveying fan is conveyed into the installation frame through the gas conveying pipe.
Preferably, the outer wall of one end of the rotating shaft is rotatably sleeved with a bearing seat, and the upper end of the bearing seat is connected with the mounting frame. The rotating shaft is rotatably arranged inside the mounting frame through the bearing seat.
Preferably, the worm is located inside the mounting frame, and the worm is in rotational engagement with the worm wheel. The worm rotates through the motor to drive the worm wheel to rotate inside the installation frame.
Preferably, the sealing ring is embedded and installed in the installation frame, and one end of the worm is rotationally inserted into the sealing ring. The worm rotates in the installation frame through the sealing ring.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the powder diffusion device is arranged at the communication position between the limestone injection device and the furnace body, the worm is used for driving the worm wheel to rotate, the rotating plate is driven to rotate, limestone powder is rotated and flapped, and the limestone powder is uniformly distributed in the furnace body in a diffusion shape and is transported in a cyclone shape, so that the contact range with a combustion medium is increased, and the desulfurization effect of desulfurization catalyst limestone on sulfides in the combustion medium is improved.
Drawings
FIG. 1 is a schematic view of the main sectional structure of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
FIG. 3 is a schematic view of the main cross-sectional structure of the mounting frame of FIG. 1 in accordance with the present utility model;
fig. 4 is a schematic top view of the mounting frame of the present utility model.
Reference numerals: 1. a feed box; 2. a conveying fan; 3. an air supply pipe; 4. a furnace body; 5. a delivery tube; 6. an exhaust pipe; 7. a pot body; 8. a bearing seat; 9. a mounting frame; 10. a seal ring; 11. a worm; 12. a rotating plate; 13. a rotating shaft; 14. a worm wheel; 15. and a motor.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Example 1
As shown in fig. 1-4, the novel catalyst injector for the circulating fluidized bed boiler provided by the utility model comprises a feed box 1, a conveying fan 2, a furnace body 4, a conveying pipe 5, a mounting frame 9, a rotating shaft 13 and a motor 15, wherein the outer wall of the furnace body 4 is sleeved with a boiler body 7, one side of the furnace body 4 is provided with the conveying fan 2, one side above the conveying fan 2 is provided with the feed box 1, one end of the conveying fan 2 is provided with an air supply pipe 3, one end of the furnace body 4 is internally embedded and installed with the mounting frame 9, one end of the air supply pipe 3 is inserted and connected in the mounting frame 9, the rotating shaft 13 is internally provided with the rotating shaft 13, the outer wall of the rotating shaft 13 is sleeved with a worm wheel 14, one end outer wall of the rotating shaft 13 is provided with a rotating plate 12 which is equidistantly distributed, one end of the rotating shaft 13 is rotatably sleeved with a bearing seat 8, the upper end of the bearing seat 8 is connected with the mounting frame 9, the rear end of the mounting frame 9 is provided with the motor 15, one end of the motor 15 is provided with a worm 11, the worm 11 is positioned in the mounting frame 9, the worm 11 is rotatably meshed with the worm wheel 14, the inner part of the mounting frame 9 is embedded and installed with a sealing ring 10, one end of the worm 11 is rotatably inserted and connected in the sealing ring 10, the upper end of the 4 is provided with the worm 6, and the upper end of the exhaust pipe 7 penetrates through the boiler body 7.
The procedure is based on example 1: when the boiler is heated by combustion in the furnace body 4, a large amount of sulfides are generated in the smoke dust after combustion, at the moment, the feed box 1 conveys limestone powder into the air supply pipe 3, the conveying fan 2 conveys air flow to spray the limestone powder, the motor 15 operates to drive the worm 11 to rotate so as to avoid straight conveying of the limestone, the worm 11 drives the worm wheel 14 to rotate, the rotating plate 12 is driven to rotate and flap the limestone powder, the limestone powder is in a rotational flow shape under the action of the air flow and is diffused all around, the contact surface between the limestone powder and a combustion medium is increased, and the desulfurization effect is improved.
Example two
As shown in fig. 1 to 4, compared with the first embodiment, the novel catalyst injector for a circulating fluidized bed boiler provided by the present utility model further includes: the inside conveyer pipe 5 that is provided with of furnace body 4, conveyer pipe 5 are snakelike, and conveyer pipe 5 both ends all run through furnace body 4, and conveyor fan 2 inlet end is closed form, and conveyer pipe 5 one end link up conveyor fan 2 inlet end.
In this embodiment, the conveying fan 2 extracts external air as an air flow conveying source, the extracted air flow is heated in the inner part of the furnace body 4 through the serpentine conveying pipe 5 and exchanges heat with the extracted air, after the conveying air flow is heated, the limestone powder is preheated, the heating time of the limestone powder is reduced, the hot air is conveyed into the furnace body 4, the heating process of cold air after entering the furnace body is avoided, and the energy consumption is reduced.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a novel catalyst jetting ware of circulating fluidized bed boiler, includes workbin (1), conveyor fan (2), furnace body (4), conveyer pipe (5), installing frame (9), pivot (13) and motor (15), its characterized in that: the utility model discloses a boiler body, including furnace body (4), motor (15), worm wheel (14) have been cup jointed to furnace body (4) outer wall, furnace body (4) one side is provided with conveyor fan (2), conveyor fan (2) top one side is provided with workbin (1), conveyor fan (2) one end is provided with air supply pipe (3), installation frame (9) are installed to inside embedding of furnace body (4) one end, installation frame (9) inside is provided with pivot (13), worm wheel (14) have been cup jointed to pivot (13) outer wall, pivot (13) one end outer wall is provided with rotation board (12) that the equidistance distributes, installation frame (9) rear end is provided with motor (15), motor (15) one end is provided with worm (11).
2. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: the conveying pipe (5) is in a snake shape, two ends of the conveying pipe (5) penetrate through the furnace body (4), the air inlet end of the conveying fan (2) is in a closed shape, and one end of the conveying pipe (5) penetrates through the air inlet end of the conveying fan (2).
3. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: the upper end of the furnace body (4) is provided with an exhaust pipe (6), and the upper end of the exhaust pipe (6) penetrates through the pot body (7).
4. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: one end of the air supply pipe (3) is inserted into the mounting frame (9).
5. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: the outer wall of one end of the rotating shaft (13) is rotatably sleeved with a bearing seat (8), and the upper end of the bearing seat (8) is connected with a mounting frame (9).
6. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: the worm (11) is positioned inside the mounting frame (9), and the worm (11) is rotationally meshed with the worm wheel (14).
7. The circulating fluidized bed boiler novel catalyst injector of claim 1, wherein: the sealing ring (10) is embedded and installed in the installation frame (9), and one end of the worm (11) is rotationally inserted into the sealing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321028645.7U CN219828820U (en) | 2023-05-04 | 2023-05-04 | Novel catalyst jetting device for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321028645.7U CN219828820U (en) | 2023-05-04 | 2023-05-04 | Novel catalyst jetting device for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219828820U true CN219828820U (en) | 2023-10-13 |
Family
ID=88277509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321028645.7U Active CN219828820U (en) | 2023-05-04 | 2023-05-04 | Novel catalyst jetting device for circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219828820U (en) |
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2023
- 2023-05-04 CN CN202321028645.7U patent/CN219828820U/en active Active
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