CN220103115U - Slag bin dust removal system of circulating fluidized bed boiler of thermal power plant - Google Patents
Slag bin dust removal system of circulating fluidized bed boiler of thermal power plant Download PDFInfo
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- CN220103115U CN220103115U CN202321674490.4U CN202321674490U CN220103115U CN 220103115 U CN220103115 U CN 220103115U CN 202321674490 U CN202321674490 U CN 202321674490U CN 220103115 U CN220103115 U CN 220103115U
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- slag bin
- power plant
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- 239000002893 slag Substances 0.000 title claims abstract description 142
- 239000000428 dust Substances 0.000 title claims abstract description 57
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 239000000779 smoke Substances 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000002956 ash Substances 0.000 claims description 13
- 239000010884 boiler slag Substances 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a slag bin dust removing system of a circulating fluidized bed boiler of a thermal power plant, which comprises a primary air mechanism and a slag bin mechanism, wherein a communication component is communicated between the slag bin mechanism and the primary air mechanism; the communication component comprises a smoke exhaust pipe, one end of the smoke exhaust pipe is communicated with the slag bin mechanism, and the other end of the smoke exhaust pipe is communicated with an inlet of the primary air mechanism; the slag bin mechanism comprises a slag bin, an inlet of the smoke exhaust pipe is fixedly connected to the top end of the slag bin and is communicated with the slag bin, an inlet of the slag bin is communicated with the slag cooler, and an outlet at the bottom end of the slag bin is communicated with a slag discharging component. The utility model has the advantages of simple structure, convenient use, good dust removal effect, strong resistance to external severe weather, low failure rate and convenient later maintenance.
Description
Technical Field
The utility model belongs to the technical field of circulating fluidized bed boilers, and particularly relates to a slag bin dust removal system of a circulating fluidized bed boiler of a thermal power plant.
Background
The slag removing system of the circulating fluidized bed boiler of the thermal power plant is a mechanical slag removing system, and a slag conveying scheme of a belt slag conveyer, a large-inclination belt slag conveyer, a slag bin and an automobile is mostly adopted. Slag generated by boiler combustion is discharged from a slag discharge port, enters a slag cooler for cooling, and the cooled dry slag falls onto a belt type slag conveyer arranged at the bottom of the boiler and is transported to the belt type slag conveyer with a large inclination angle outside the boiler, and is further transported to a slag bin. In order to prevent a great amount of smoke dust generated when the slag on the belt type slag conveyor is conveyed to the slag bin from overflowing, a cloth bag dust remover is generally arranged at the top of the slag bin for removing dust. Because the slag bin is generally arranged near the open air of the boiler, and is influenced by the environmental rain and snow and the like, the dust collection effect of the filter bag of the bag-type dust collector is often poorer and worse, a large amount of dust is raised on site, and the environmental sanitation on site is seriously influenced.
Therefore, the dust removal system of the circulating fluidized bed boiler slag bin of the thermal power plant is provided for solving the problem of a large amount of dust raising in the slag bin after the failure of the bag-type dust remover.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a slag bin dust removal system of a circulating fluidized bed boiler of a thermal power plant.
In order to achieve the aim, the utility model provides a slag bin dust removal system of a circulating fluidized bed boiler of a thermal power plant, which comprises a primary air mechanism and a slag bin mechanism, wherein a communication component is communicated between the slag bin mechanism and the primary air mechanism;
the communication assembly comprises a smoke exhaust pipe, one end of the smoke exhaust pipe is communicated with the slag bin mechanism, and the other end of the smoke exhaust pipe is communicated with an inlet of the primary air mechanism;
the slag bin mechanism comprises a slag bin, an inlet of the smoke exhaust pipe is fixedly connected to the top end of the slag bin and is communicated with the slag bin, an inlet of the slag bin is communicated with a slag cooler, and an outlet at the bottom end of the slag bin is communicated with a slag discharging component.
Preferably, the primary air mechanism comprises a plurality of air supply fans, the outlets of the air supply fans are communicated with an air supply assembly, the inlets of the air supply fans are communicated with a plurality of air inlet pipes, the smoke exhaust pipe is communicated with a plurality of branch pipes, and the branch pipes are communicated with the air inlet pipes.
Preferably, one end of the smoke exhaust pipe, which is close to the steel slag bin, is fixedly provided with a first electric flashboard door, and the branch pipe is fixedly provided with a first manual flashboard door.
Preferably, the outlet of the slag cooler is communicated with a plurality of slag discharging pipes, and a second manual inserting plate door and a second electric inserting plate door are sequentially arranged on the slag discharging pipes; the bottom end of the slag discharging pipe is provided with a chain bucket conveyor, and the chain bucket conveyor moves towards the steel slag bin and is correspondingly arranged and communicated with the inlet of the steel slag bin.
Preferably, the slag discharging component comprises a plurality of slag discharging pipes communicated with an outlet at the bottom end of the steel slag bin, a third manual inserting plate door and a pneumatic ash valve are sequentially arranged on the slag discharging pipes, one slag discharging pipe is communicated with an inlet of the double-shaft stirrer, and the other slag discharging pipe is communicated with a dry ash bulk machine.
Preferably, the double-shaft stirrer is communicated with reuse water of the power plant.
Preferably, the inlet of the air inlet pipe is communicated with a silencer.
Preferably, the outer wall of the steel slag bin is fixedly provided with a vibrating motor.
Compared with the prior art, the utility model has the following advantages and technical effects: when the dust removing system of the circulating fluidized bed boiler slag bin of the thermal power plant is used, dust raised by dust entering the slag bin is pumped away by the primary air mechanism through the smoke exhaust pipe and is sent to the hearth for combustion by the primary air mechanism again, so that pollution caused by dust dissipation at the top of the slag bin is avoided, the problem that the dust removing effect is reduced or even lost due to the fact that the conventional cloth bag dust remover is invalid due to the influence of the outside is also avoided, the problem that a large amount of dust is raised in the slag bin after the cloth bag dust remover is invalid is effectively solved, and meanwhile, compared with the cloth bag dust remover, the dust removing system disclosed by the utility model has the advantages of better dust removing effect due to sealing communication, convenience in use, no need of cleaning cloth bags later, convenience in maintenance, strong resistance to abnormal weather and low failure rate.
The utility model has the advantages of simple structure, convenient use, good dust removal effect, strong resistance to external severe weather, low failure rate and convenient later maintenance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a slag bin dust removal system of a circulating fluidized bed boiler in a thermal power plant;
in the figure: 1. a smoke exhaust pipe; 2. a steel slag bin; 3. a slag cooler; 4. a blower; 5. an air inlet pipe; 6. a branch pipe; 7. a first electrically powered fork strap door; 8. a first manual fork strap door; 9. a slag discharge pipe; 10. a second manual fork strap gate; 11. the second electric plugboard door; 12. chain bucket conveyor; 13. a slag discharging pipe; 14. a third manual fork strap door; 15. a pneumatic ash valve; 16. a double-shaft stirrer; 17. a dry ash bulk machine; 18. a muffler; 19. a vibration motor; 20. a bag-type dust collector; 21. a damper; 22. an air supply pipe; 23. and (3) a filter.
Detailed Description
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.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, the embodiment provides a slag bin dust removal system of a circulating fluidized bed boiler of a thermal power plant, which comprises a primary air mechanism and a slag bin mechanism, wherein a communication component is communicated between the slag bin mechanism and the primary air mechanism;
the communication component comprises a smoke exhaust pipe 1, one end of the smoke exhaust pipe 1 is communicated with the slag bin mechanism, and the other end of the smoke exhaust pipe 1 is communicated with an inlet of the primary air mechanism;
the slag bin mechanism comprises a slag bin 2, an inlet of the smoke exhaust pipe 1 is fixedly connected to the top end of the slag bin 2 and is communicated with the slag bin 2, an inlet of the slag bin 2 is communicated with a slag cooler 3, and an outlet at the bottom end of the slag bin 2 is communicated with a slag discharging component.
When the dust removing system of the circulating fluidized bed boiler slag bin of the thermal power plant is used, dust raised by dust entering the slag bin 2 is pumped away by the primary air mechanism through the smoke exhaust pipe 1 and is sent into the hearth to burn again by the primary air mechanism, so that pollution caused by dust dissipation at the top of the slag bin 2 is avoided, the problem that the dust removing effect of the conventional bag-type dust remover 20 is reduced or even lost due to failure caused by external influence can be avoided, the problem that a large amount of dust is raised in the slag bin after the failure of the bag-type dust remover 20 is effectively solved, and meanwhile, compared with the bag-type dust remover 20, the dust removing system has better dust removing effect due to sealing communication, is convenient to use, does not need to clean a bag later, is convenient to maintain, has strong resistance to abnormal weather and has low failure rate.
Further optimizing scheme, the primary air mechanism includes a plurality of air supply machine 4, and the export intercommunication of air supply machine 4 has the air supply subassembly, and the import intercommunication of air supply machine 4 has a plurality of air-supply pipes 5, and exhaust pipe 1 intercommunication has a plurality of branch pipes 6, and branch pipe 6 and air-supply pipe 5 intercommunication. The air supply fan 4 is used as a power source, and suction is generated in the steel slag bin 2 in the smoke exhaust pipe 1 to suck the dust-containing smoke through the smoke exhaust pipe 1, so that the dust removal effect of the steel slag bin 2 is achieved; the inlets of the air supply fan 4 are respectively connected with the smoke exhaust pipe 1 through the branch pipes 6, so that dust removal failure caused by blockage of the single branch pipe 6 is prevented.
Further, the air supply system comprises an air supply pipe 22 communicated with the outlet of the air supply fan 4, and the outlet of the air supply pipe 22 is communicated with an air preheater (not shown) or is communicated with coal supply sealing air; the air supply pipe 22 is provided with a plurality of air brakes 21 for controlling the purpose and trend of the air in the air supply pipe 22.
According to a further optimization scheme, one end of the smoke exhaust pipe 1, which is close to the steel slag bin 2, is fixedly provided with a first electric flashboard door 7, and a branch pipe 6 is fixedly provided with a first manual flashboard door 8. The first electric flashboard door 7 controls the smoke discharging time of the steel slag bin 2, so that the smoke discharging time is convenient to control; the first manual insertion plate door 8 is used for controlling the connection relation between the branch pipe 6 and the air inlet pipe 5.
Further, in order to prevent large-particle impurities and dust in the smoke dust from entering the air supply fan 4, the branch pipe 6 is provided with a filter 23 for filtering the smoke dust entering the air supply fan, so that the large-particle impurities are prevented from damaging the air supply fan, the service life of the air supply fan 4 is prolonged, and the maintenance pressure is reduced; the filter 23 is disposed at an end of the first manual insertion plate door 8 remote from the air supply fan 4, and prevents smoke from blocking the first manual insertion plate door 8.
Further, the filter 23 is cleaned once every a period of time to ensure that the filter is in normal effect.
In a further optimization scheme, the outlet of the slag cooler 3 is communicated with a plurality of slag discharging pipes 9, and a second manual inserting plate door 10 and a second electric inserting plate door 11 are sequentially arranged on the slag discharging pipes 9; the bottom end of the slag discharging pipe 9 is provided with a chain bucket conveyor 12, and the chain bucket conveyor 12 moves towards the steel slag bin 2 and is correspondingly arranged and communicated with the inlet of the steel slag bin 2. The waste slag generated by boiler combustion is firstly cooled in the slag cooler 3, the cooled dry slag falls on the chain bucket conveyor 12 through the slag discharging pipe 9, and the chain bucket conveyor 12 can be provided with a plurality of groups according to the distance between the slag cooler 3 and the steel slag bin 2 and the like, so that the transportation is convenient; the second manual inserting plate door 10 and the second electric inserting plate door 11 control the falling of dry slag, when the automatic slag removing device is used, the second manual inserting plate door 10 is used as a standby valve according to the principle that industrial equipment is used for one time, the second electric inserting plate door 11 is in a normally open state, the second manual inserting plate door 10 is controlled to remove slag daily until the second electric inserting plate door 11 is damaged or overhauled, the second manual inserting plate door 10 is controlled to control the on-off of the slag removing pipe 9, and therefore the second manual inserting plate door 10 is designed above the second electric inserting plate door 11.
Further, the slag coolers 3 may be arranged in several groups, which are matched to the specifications of the circulating fluidized bed boiler of the power plant, and the utility model is shown in fig. 1 only and is not limited by the specific number.
In a further optimized scheme, the slag discharging assembly comprises a plurality of slag discharging pipes 13 communicated with the outlet at the bottom end of the steel slag bin 2, a third manual flashboard door 14 and a pneumatic ash valve 15 are sequentially arranged on the slag discharging pipes 13, one slag discharging pipe 13 is communicated with the inlet of the double-shaft stirrer, and the other slag discharging pipe 13 is communicated with a dry ash bulk machine 17; the double-shaft stirrer is communicated with the reuse water of the power plant. The end of the steel slag bin 2 is provided with at least two slag discharging pipes 13 according to the specification and the discharge proportion; one path of slag discharging pipe 13 sends the residues into a double-shaft stirrer for stirring, and in the stirring process, the reuse water of the power plant is added for humidifying, and then the residues are discharged out of the loading machine for transportation; the other path of slag discharging pipe 13 sends the residues into a dry ash bulk machine 17, and then the residues are directly put into a tank truck for external transportation; the outer wall of the dry ash bulk machine 17 is communicated with a bag-type dust remover 20.
Further, the outer wall of the steel slag bin 2 is provided with a working platform (not shown in the figure) for inspection and maintenance, and the double-shaft stirrer 16 and the dry ash bulk machine 17 are both positioned below the working platform, so that the failure caused by wetting of a cloth bag caused by the weather of an external machine can be prevented.
Further, the principle and use of the dry ash bulk machine 17 can refer to a dry ash environment-friendly loader at the bottom side of a ry4558 warehouse, and will not be described herein.
Further optimizing scheme, the inlet of the air inlet pipe 5 is communicated with a silencer 18. The silencer 18 arranged at the inlet of the air inlet pipe 5 aims at reducing the noise of the air inlet, and the structure and the usage of the silencer 18 can refer to the fan silencer with the model of JX-ZPX, and the specific specification is selected according to the specification of the air supply pipe 22.
Further optimizing scheme, the vibrating motor 19 is fixedly arranged on the outer wall of the steel slag bin 2. The silencer 18 arranged at the inlet of the air inlet pipe 5 aims at reducing the noise of the air inlet, and the structure and the usage of the silencer 18 can refer to the fan silencer with the model of JX-ZPX, and the specific specification is selected according to the specification of the air supply pipe 22.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (8)
1. A dust removal system for a slag bin of a circulating fluidized bed boiler of a thermal power plant is characterized in that: the slag bin mechanism is communicated with the primary air mechanism through a communication component;
the communication assembly comprises a smoke exhaust pipe (1), one end of the smoke exhaust pipe (1) is communicated with the slag bin mechanism, and the other end of the smoke exhaust pipe (1) is communicated with an inlet of the primary air mechanism;
the slag bin mechanism comprises a slag bin (2), an inlet of the smoke exhaust pipe (1) is fixedly connected to the top end of the slag bin (2) and is communicated with the slag bin (2), an inlet of the slag bin (2) is communicated with a slag cooler (3), and an outlet at the bottom end of the slag bin (2) is communicated with a slag discharging component.
2. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 1, wherein: the primary air mechanism comprises a plurality of air supply fans (4), an outlet of each air supply fan (4) is communicated with an air supply assembly, an inlet of each air supply fan (4) is communicated with a plurality of air inlet pipes (5), a plurality of branch pipes (6) are communicated with the smoke exhaust pipe (1), and the branch pipes (6) are communicated with the air inlet pipes (5).
3. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 2, wherein: one end of the smoke exhaust pipe (1) close to the steel slag bin (2) is fixedly provided with a first electric inserting plate door (7), and the branch pipe (6) is fixedly provided with a first manual inserting plate door (8).
4. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 1, wherein: the outlet of the slag cooler (3) is communicated with a plurality of slag discharging pipes (9), and a second manual inserting plate door (10) and a second electric inserting plate door (11) are sequentially arranged on the slag discharging pipes (9); the bottom of the slag discharging pipe (9) is provided with a chain bucket conveyor (12), and the chain bucket conveyor (12) moves towards the steel slag bin (2) and is correspondingly arranged and communicated with an inlet of the steel slag bin (2).
5. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 1, wherein: the slag discharging assembly comprises a plurality of slag discharging pipes (13) communicated with an outlet at the bottom end of the steel slag bin (2), a third manual inserting plate door (14) and a pneumatic ash valve (15) are sequentially arranged on the slag discharging pipes (13), one slag discharging pipe (13) is communicated with an inlet of the double-shaft mixer, and the other slag discharging pipe (13) is communicated with a dry ash bulk machine (17).
6. The dust removal system for a circulating fluidized bed boiler slag silo of a thermal power plant according to claim 5, wherein: the double-shaft stirrer is communicated with the reuse water of the power plant.
7. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 2, wherein: the inlet of the air inlet pipe (5) is communicated with a silencer (18).
8. The circulating fluidized bed boiler slag silo dust removal system of a thermal power plant according to claim 1, wherein: the outer wall of the steel slag bin (2) is fixedly provided with a vibrating motor (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674490.4U CN220103115U (en) | 2023-06-29 | 2023-06-29 | Slag bin dust removal system of circulating fluidized bed boiler of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674490.4U CN220103115U (en) | 2023-06-29 | 2023-06-29 | Slag bin dust removal system of circulating fluidized bed boiler of thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN220103115U true CN220103115U (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321674490.4U Active CN220103115U (en) | 2023-06-29 | 2023-06-29 | Slag bin dust removal system of circulating fluidized bed boiler of thermal power plant |
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| Country | Link |
|---|---|
| CN (1) | CN220103115U (en) |
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2023
- 2023-06-29 CN CN202321674490.4U patent/CN220103115U/en active Active
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