CN202494123U - Boiler dedusting system - Google Patents
Boiler dedusting system Download PDFInfo
- Publication number
- CN202494123U CN202494123U CN2011205491105U CN201120549110U CN202494123U CN 202494123 U CN202494123 U CN 202494123U CN 2011205491105 U CN2011205491105 U CN 2011205491105U CN 201120549110 U CN201120549110 U CN 201120549110U CN 202494123 U CN202494123 U CN 202494123U
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- boiler
- dust
- flue
- slag
- pelletizing system
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Abstract
The utility model provides a boiler dedusting system including a boiler smoke dedusting system. The boiler smoke dedusting system includes a flue, a flue deduster and a draught fan. Smoke generated by a boiler enters into the flue deduster through the flue for dedusting and dedusted smoke is exhausted into a chimney through the draught fan for discharging. The boiler dedusting system also includes a boiler bottom ash dust-raising and dedusting system. The boiler bottom residue dust-raising and dedusting system includes one or more dust hoods and air pipes connecting with the dust hoods, wherein the dust hoods are used for disposing between a boiler bottom ash cooler and a first ash conveying machine among a plurality of ash conveying machines connected together in series and/or between two neighboring ash conveying machines among the ash conveying machines connected together in series, and one or more air pipes in the boiler bottom residue dust-raising and dedusting system communicate with the flue in the boiler smoke dedusting system. The boiler dedusting system can remove dust in smoke and raising dust in boiler bottom ash together, thereby simplifying system, realizing energy conservation and consumption reduction and avoiding secondary dust-raising.
Description
Technical field
The utility model belongs to thermal power plant system engineering field, specifically, relates to a kind of boiler dusting system.
Background technology
In present thermal power plant's electricity generation system, much adopt CFBB to produce high temperature and high pressure steam, adopt steam turbine that high temperature and high pressure steam is changed into mechanical energy and drive generator and generate electricity.
The burning in circulating fluid bed boiler technology is a kind of clean combustion technology of high-efficiency low-pollution, and its nitrogen oxide emission is low, desulfuration efficiency and efficiency of combustion are high, and fuel tolerance is wide, Load Regulation property is good, lime-ash is easy to comprehensive utilization.The high temperature and high pressure steam that CFBB produces gets in the steam turbine and does work, and this boiler produces flue gas and gets into flue after through for example economizer and air preheater heat exchange, and the end slag of this boiler generation then gets in the boiler slag-cooling device and cools off.
The flue gas that gets into flue from boiler is being removed through boiler dust remover after dust and other harmful substance the flue gas become flue gas up to standard, is sent in the chimney by air-introduced machine to emit.The end slag that enters the boiler slag-cooling device from boiler then after the cooling, is discharged from the boiler slag-cooling device the boiler slag-cooling device, is transported by slag conveyer.
Passing on a little between boiler slag-cooling device and the slag conveyer and between slag conveyer and slag conveyer, the slag airborne dust is serious, and the conventional practice is that independent defeated slag deduster is set, and by defeated slag deduster the dust of collecting is entered in the slag conveyer more nearby.The problem that this dust collection method brings is that independent defeated slag deduster need be set.So equipment is taken again in both sides of occupation of land, also can cause reentrainment of dust.
The utility model content
The utility model is made for solving the problems of the technologies described above; Its purpose is to provide a kind of boiler dusting system, and this boiler dusting system can remove dust and the airborne dust of boiler bottom slag in the boiler smoke in the lump, can simplify system again; Realize saving energy and reduce the cost, and avoid reentrainment of dust.
To achieve these goals; The utility model provides a kind of boiler dusting system; It comprises: the boiler smoke dust pelletizing system comprises: flue, flue dust collector and air-introduced machine, wherein; The flue gas that boiler produces gets into through said flue and carries out dedusting in the said flue dust collector, and the flue gas after the dedusting is by discharging in the said air-introduced machine suction chimney; And boiler bottom slag airborne dust dust pelletizing system; Comprise: one or more dust shields and the airduct that is connected with each dust shield; Wherein, Said dust shield is used for being arranged between first slag conveyers of boiler slag-cooling device and a plurality of slag conveyers that are connected in series and/or in the slag conveyer of said a plurality of serial connections between adjacent two slag conveyers, the one or more airducts in the said boiler bottom slag airborne dust dust pelletizing system are communicated with the flue in the said boiler smoke dust pelletizing system.
In one embodiment, one or more can directly connection the in the airduct in the said boiler bottom slag airborne dust dust pelletizing system with the flue in the said boiler smoke dust pelletizing system.In another embodiment, a plurality of airducts in the said boiler bottom slag airborne dust dust pelletizing system can be communicated with blast main, and this blast main is communicated with flue in the said boiler smoke dust pelletizing system.
Preferably, can also be provided with air door on one or more in the dust shield in said boiler bottom slag airborne dust dust pelletizing system.
Can know that from top description and practice in the said boiler dusting of the utility model system, the airduct in the boiler bottom slag airborne dust dust pelletizing system is not to link to each other with the independent defeated slag deduster of special use, but link to each other with flue in the boiler smoke dust pelletizing system.Can remove dust and the airborne dust of end slag in the flue gas so in the lump, can simplify system again, realize energy-saving and cost-reducingly, and avoid reentrainment of dust.
Calculating and practice show that boiler bottom slag airborne dust dedusting institute required airflow is very little, can ignore with respect to the air quantity of boiler smoke deduster.In addition, because boiler flue is just near the airborne dust point of boiler bottom slag, therefore, the airduct in the described boiler bottom slag of the utility model airborne dust dust pelletizing system is not long.So the described boiler bottom slag of the utility model airborne dust dust pelletizing system neither can influence the work of boiler flue dust pelletizing system, has reliability again, can not silt up.
Description of drawings
Fig. 1 is the structural representation of the described boiler dusting of an embodiment system of the utility model.
The specific embodiment
Below with reference to accompanying drawing the described boiler dusting system implementation example of the utility model is described.Those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.In addition, in this manual, accompanying drawing is not in scale to be drawn, and identical Reference numeral is represented same or analogous part.
Fig. 1 is the structural representation of the described boiler dusting of an embodiment system of the utility model.As shown in Figure 1, the described boiler dusting of an embodiment system of the utility model comprises: boiler smoke dust pelletizing system and boiler bottom slag airborne dust dust pelletizing system.
The boiler smoke dust pelletizing system comprises: flue 10, flue dust collector 20 and air-introduced machine 30, and wherein, the flue gas that boiler 1 produces gets in the flue dust collector 20 through flue 10 and carries out dedusting, and the flue gas after the dedusting is by discharging in the air-introduced machine 30 suction chimneys 2.In fact, air-introduced machine 30 produces negative pressure in flue, drives flue gas and gets into flue 10 from boiler 1, through flue dust collector 20, gets into chimney 2 at last again.
Boiler bottom slag airborne dust dust pelletizing system comprises: one or more dust shields 40 and the airduct 50 that is connected with each dust shield; Wherein, said dust shield 40 is set between first slag conveyer in boiler slag-cooling device 3 and a plurality of slag conveyers that are connected in series 4 and/or in the slag conveyer 4 of said a plurality of serial connections between adjacent two slag conveyers.After the boiler bottom slag cools off, get into first slag conveyer in the slag conveyer 4 of a plurality of serial connections in boiler slag-cooling device 3, transport in turn by said a plurality of slag conveyers 4 then.Passing on a little between boiler slag-cooling device 3 and the slag conveyer 4 and between each slag conveyer 4, the slag airborne dust is collected through being arranged on these dust shields 40 that pass on a little, sees off through the airduct 50 that links to each other with dust shield 40 then.
Said one or more airduct 50 is communicated with flue 10 in the boiler smoke dust pelletizing system.In the present embodiment, a plurality of (the for example 2) airduct 50 in the boiler bottom slag airborne dust dust pelletizing system is communicated with blast main 60, and 60 of this blast mains are communicated with flue 10 in the boiler smoke dust pelletizing system.In other embodiment, one or more can directly connection the in the airduct 50 in the boiler bottom slag airborne dust dust pelletizing system with the flue 10 in the boiler smoke dust pelletizing system.
In addition, can also be provided with air door 70 on the one or more dust shields in the dust shield 40 in boiler bottom slag airborne dust dust pelletizing system.Through regulating each air door 70, the air quantity in can each airduct 50 of balance, air quantity is too big in the airduct of avoiding 50, and then air quantity is too little in the airduct 50 that has.
Can know from top description and practice, in the said boiler dusting of the utility model system, independent defeated slag deduster is not set come boiler bottom slag airborne dust is carried out dedusting.But the airduct in the boiler bottom slag airborne dust dust pelletizing system is linked to each other with flue in the boiler smoke dust pelletizing system.Can remove dust and the airborne dust of end slag in the flue gas so in the lump, can simplify system again, realize energy-saving and cost-reducingly, and avoid reentrainment of dust.Calculating and practice show that boiler bottom slag airborne dust dedusting institute required airflow is very little, can ignore with respect to the air quantity of boiler smoke deduster.In addition, because boiler flue is just near the airborne dust point of boiler bottom slag, therefore, the airduct in the described boiler bottom slag of the utility model airborne dust dust pelletizing system is not long.So the described boiler bottom slag of the utility model airborne dust dust pelletizing system neither can influence the work of boiler flue dust pelletizing system, has reliability again, can not silt up.
It will be appreciated by those skilled in the art that the boiler dusting system that proposes for above-mentioned the utility model, can also on the basis that does not break away from the utility model content, make various improvement and combination.Therefore, the protection domain of the utility model should be confirmed by the content of appending claims.
Claims (3)
1. boiler dusting system comprises:
The boiler smoke dust pelletizing system comprises: flue, flue dust collector and air-introduced machine, and wherein, the flue gas that boiler produces gets into through said flue and carries out dedusting in the said flue dust collector, and the flue gas after the dedusting is by discharging in the said air-introduced machine suction chimney; And
Boiler bottom slag airborne dust dust pelletizing system; Comprise: one or more dust shields and the airduct that is connected with each dust shield; Wherein, Said dust shield is used for being arranged between first slag conveyers of boiler slag-cooling device and a plurality of slag conveyers that are connected in series and/or in the slag conveyer of said a plurality of serial connections between adjacent two slag conveyers
It is characterized in that the one or more airducts in the said boiler bottom slag airborne dust dust pelletizing system are communicated with the flue in the said boiler smoke dust pelletizing system.
2. boiler dusting according to claim 1 system; It is characterized in that; Flue in the one or more and said boiler smoke dust pelletizing system in the airduct in the said boiler bottom slag airborne dust dust pelletizing system directly is communicated with; A plurality of airducts in the perhaps said boiler bottom slag airborne dust dust pelletizing system are communicated with blast main, and this blast main is communicated with flue in the said boiler smoke dust pelletizing system.
3. boiler dusting according to claim 1 system is characterized in that, also is provided with air door on one or more in the dust shield in said boiler bottom slag airborne dust dust pelletizing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491105U CN202494123U (en) | 2011-12-23 | 2011-12-23 | Boiler dedusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491105U CN202494123U (en) | 2011-12-23 | 2011-12-23 | Boiler dedusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494123U true CN202494123U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205491105U Expired - Lifetime CN202494123U (en) | 2011-12-23 | 2011-12-23 | Boiler dedusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605231A (en) * | 2018-12-06 | 2019-04-12 | 福建省圣新能源股份有限公司 | A kind of collection method of chicken manure boiler sandblasting fugitive dust |
-
2011
- 2011-12-23 CN CN2011205491105U patent/CN202494123U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605231A (en) * | 2018-12-06 | 2019-04-12 | 福建省圣新能源股份有限公司 | A kind of collection method of chicken manure boiler sandblasting fugitive dust |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
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| CX01 | Expiry of patent term |