CN105953247B - A kind of big slag recycling system of boiler furnace - Google Patents
A kind of big slag recycling system of boiler furnace Download PDFInfo
- Publication number
- CN105953247B CN105953247B CN201610370905.7A CN201610370905A CN105953247B CN 105953247 B CN105953247 B CN 105953247B CN 201610370905 A CN201610370905 A CN 201610370905A CN 105953247 B CN105953247 B CN 105953247B
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- China
- Prior art keywords
- recovery bin
- recovery
- burner hearth
- boiler
- dragveyer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The big slag recycling system of a kind of boiler furnace provided by the invention, including burner hearth, dragveyer, recovery bin, recovery tube；The recovery bin is arranged on below burner hearth, the import of dragveyer is arranged on below recovery bin, the recovery tube is connected to the side upper end of burner hearth from the side of recovery bin, the upper and lower ends of the recovery bin are respectively arranged with recovery bin import air-lock and recovery bin deslagging air-lock, recovery bin is being also equipped with hot wind inlet air valve to side with recovery tube, and the recovery tube is additionally provided with burner with burner hearth junction.The security that the present invention overhauls burner hearth is higher.The big slag phosphorus content of boiler is reduced, improves boiler efficiency.Without opening lower floor's Secondary Air very greatly to drop big slag, the burning of boiler is influenceed；Reduce dragveyer failure and extend life-span and the power consumption of dragveyer.Part physical heat of ash dregs is directly discharged into boiler furnace, reduces boiler heat loss.Burner hearth never directly connects with the dragveyer water surface, it is therefore prevented that vapor, which is directly entered burner hearth, influences the burning of boiler, causes to stop working.
Description
Technical field
The present invention relates to a kind of big slag recycling system of boiler furnace.
Background technology
The big slag of thermal power plant's boiler with dry bottom furnace is directly drained into dragveyer hull at present, problems be present：1st, when
Dragveyer uses water seal baffle plate pushing off the slag when overhauling, and safety coefficient is not high.2nd, after the big slag of boiler discharges directly by lorry loading extremely
Grey field, it can not be utilized for the higher big slag of phosphorus content, influence the economy of boiler.3rd, operations staff is carbon containing in order to reduce big slag
Amount typically by opening big bottom wind, reduces the stability of boiler combustion, poor boiler adds boiler flameout for burning
Risk.4th, the boiler quantity of slag is big, and dragveyer rotating speed is soon and output is big, easily causes dragveyer failure and influences the life-span of dragveyer,
Increase the power consumption of dragveyer.5th, physical heat of ash dregs is directly discharged into dragveyer, influences economy.6th, collapsing caused by big Jiao
Vapor is more, and the burning of boiler is influenceed into burner hearth, may cause boiler flameout.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of big slag recycling system of boiler furnace.
The present invention is achieved by the following technical programs.
The big slag recycling system of a kind of boiler furnace provided by the invention, including burner hearth, dragveyer, recovery bin, recovery
Pipe；The recovery bin is arranged on below burner hearth, and the import of dragveyer is arranged on below recovery bin, and the recovery tube is from recovery bin
Side is connected to the side upper end of burner hearth, and the upper and lower ends of the recovery bin are respectively arranged with recovery bin import air-lock and recovery bin
Deslagging air-lock, recovery bin are being also equipped with recovery tube described in hot wind inlet air valve and burner hearth junction with recovery tube also to side
It is provided with burner.
The both ends of the recovery tube are separately installed with hot blast manual brake A and hot blast manual brake B.
The junction of the recovery tube and recovery bin is additionally provided with screen pack and hot-blast outlet air-lock.
The beneficial effects of the present invention are：
1) big slag recovery bin recovery bin import air-lock is closed when, dragveyer overhauls, the recovery bin deslagging gas of big slag recovery bin 3
Lock is closed, and the security of maintenance is higher.
2) the big slag phosphorus content of boiler, is reduced, improves boiler efficiency.
3), without opening lower floor's Secondary Air very greatly to drop big slag, the burning of boiler is influenceed；Combustion adjustment after this system reform
Secondary air register only need to pay attention to flameholding and be adjusted without the concern for the high factor of big slag phosphorus content.
4), reduction dragveyer rotating speed is reduced and contributed and reduced by the quantity of slag, it is possible to reduce dragveyer failure and extension dragveyer
Life-span, and reduce dragveyer power consumption.
5), part physical heat of ash dregs is directly discharged into boiler furnace, reduces boiler heat loss.
6), when collapsing big burnt, big Jiao is first fallen on big slag recovery bin recovery bin import air-lock, and big slag recovery bin recovery bin enters
Implication lock is fallen on big slag recovery bin recovery bin deslagging air-lock again after opening, after big slag recovery bin recovery bin deslagging air-lock opening most
After fall into dragveyer, burner hearth never directly connects with the dragveyer water surface, it is therefore prevented that vapor be directly entered burner hearth influence boiler
Burning, cause to stop working.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- burner hearths, 2- dragveyers, 3- recovery bins, 4- recovery tubes, 5- burners, 6- screen packs, 7- hot-blast outlet gas
Lock, 8- hot blast manual brake A, 9- hot blast manual brake B, 10- recovery bin import air-locks, 11- hot wind inlet air-locks, 12- recovery bins row
Slag air-lock.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
A kind of big slag recycling system of boiler furnace, including burner hearth 1, dragveyer 2, recovery bin 3, recovery tube 4；Described time
Receive storehouse 3 and be arranged on the lower section of burner hearth 1, the import of dragveyer 2 is arranged on the lower section of recovery bin 3, and the recovery tube 4 is from the side of recovery bin 3
Face is connected to the side upper end of burner hearth 1, and the upper and lower ends of the recovery bin 3 are respectively arranged with recovery bin import air-lock 10 and recovery
Storehouse deslagging air-lock 12, recovery bin 3 are being also equipped with recovery tube 4 and stove described in hot wind inlet air valve 11 with recovery tube 4 to side
The junction of thorax 1 is additionally provided with burner 5.
The both ends of the recovery tube 4 are separately installed with hot blast manual brake A8 and hot blast manual brake B9.The two of hand sluice valve
End sets openable clean-out door, the slag being convenient to clean in pipeline.
The junction of the recovery tube 4 and recovery bin 3 is additionally provided with screen pack 6 and hot-blast outlet air-lock 7.Prevent big slag from entering
Enter a wind pipe blocking.
The present invention application method be,
(1), the big recovery bin import air-lock 10 of slag recovery bin 3 is opened first, the big recovery bin of slag recovery bin 3 of the system burner hearth
Deslagging air-lock 12 is closed；Heat primary air recovery bin import air-lock 10 is closed；Heat primary air recovery bin deslagging air-lock 12 is closed, burner hearth
Big slag in 1 will fall directly into big slag recovery bin 3；
(2), when the big timing of 3 material position of slag recovery bin one, the recovery bin import air-lock 10 of big slag recovery bin 3 is closed；Big slag
The recovery bin deslagging air-lock 12 of recovery bin 3 is closed；Hot wind inlet air-lock 11 is opened；7 openings of hot-blast outlet air-lock, utilize heat one
Ash in big slag recovery bin 3 is blown into burner hearth by secondary wind to burn again；
(3), after big slag has blown in big slag recovery bin 3, hot wind inlet air-lock 11 to be closed, hot-blast outlet air-lock 7 is closed,
The big recovery bin deslagging air-lock 12 of slag recovery bin 3 is opened, and the coke button in big slag recovery bin 3 and the big slag not blown away are discharged into dragveyer
It is interior；
(4) after, the coke button in big slag recovery bin 3 and the big slag not blown away drain, by the big recovery bin deslagging gas of slag recovery bin 3
Lock 12 is closed；Big slag recovery bin 3 is received storehouse import air-lock 10 and opened, and thus completes a circulation, big slag constantly is blown into stove
In thorax.
The actuation time of one circulation is calculated according to the quantity of slag, calculates how long each furnace hopper can reclaim this
Storehouse is filled, and is just a circulation time using this time, but the time has to leave certain surplus.Big slag recovery bin 3 to
Pipeline of slagging tap is an inclined-plane, is easy to blow big slag therein.If the big slag phosphorus content of certain time is relatively low or other reasonses
When needing out of service, the big recovery bin import air-lock 10 of slag recovery bin 3 need to only be opened；The big recovery bin deslagging gas of slag recovery bin 3
Lock 12 is opened；Heat primary air recovery bin import air-lock 11 is closed；Hot-blast outlet air-lock 7 is closed, can be directly to exclude big slag
Do not recycle.
Claims (3)
1. a kind of big slag recycling system of boiler furnace, including burner hearth (1), dragveyer (2), recovery bin (3), recovery tube (4),
It is characterized in that：The recovery bin (3) is arranged on below burner hearth (1), and the import of dragveyer (2) is arranged on below recovery bin (3),
The recovery tube (4) is connected to the side upper end of burner hearth (1), the upper and lower ends of the recovery bin (3) from the side of recovery bin (3)
Recovery bin import air-lock (10) and recovery bin deslagging air-lock (12) are respectively arranged with, recovery bin (3) is in the offside with recovery tube (4)
Face is also equipped with hot wind inlet air valve (11), and the recovery tube (4) is additionally provided with burner (5) with burner hearth (1) junction.
2. the big slag recycling system of boiler furnace as claimed in claim 1, it is characterised in that：The two of the recovery tube (4)
End is separately installed with hot blast manual brake A (8) and hot blast manual brake B (9).
3. the big slag recycling system of boiler furnace as claimed in claim 1, it is characterised in that：The recovery tube (4) is with returning
The junction for receiving storehouse (3) is additionally provided with screen pack (6) and hot-blast outlet air-lock (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370905.7A CN105953247B (en) | 2016-05-30 | 2016-05-30 | A kind of big slag recycling system of boiler furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370905.7A CN105953247B (en) | 2016-05-30 | 2016-05-30 | A kind of big slag recycling system of boiler furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105953247A CN105953247A (en) | 2016-09-21 |
| CN105953247B true CN105953247B (en) | 2018-02-27 |
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ID=56910910
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610370905.7A Active CN105953247B (en) | 2016-05-30 | 2016-05-30 | A kind of big slag recycling system of boiler furnace |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300186A (en) * | 2017-06-06 | 2017-10-27 | 大唐贵州发耳发电有限公司 | A kind of HHT higher high tensile dehydration device |
| CN107676794B (en) * | 2017-11-01 | 2023-09-19 | 中冶焦耐(大连)工程技术有限公司 | Device and method for recycling steam at bottom of secondary combustion chamber of hazardous waste incineration system |
| CN112413636A (en) * | 2020-11-17 | 2021-02-26 | 湖南天欣科技股份有限公司 | Method for preventing coal powder combustion furnace from being exploded |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453903C (en) * | 2006-08-10 | 2009-01-21 | 上海锅炉厂有限公司 | Method for cooling bottom dregs at fluid bed boiler |
| CN101881456A (en) * | 2010-07-12 | 2010-11-10 | 山西蓝天环保设备有限公司 | Circulating fluid bed domestic garbage burning electricity generation boiler |
| CN102954478B (en) * | 2012-12-12 | 2015-11-25 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of dry Slagoff method of the wind and water combined cooling of pulverized-coal fired boiler and system |
| CN203549859U (en) * | 2013-11-16 | 2014-04-16 | 青岛达能环保设备股份有限公司 | Coal-fired boiler air cooling dry type slag conveying device |
| CN204388089U (en) * | 2014-12-26 | 2015-06-10 | 青岛松灵电力环保设备有限公司 | A kind of pulverized-coal fired boiler lime-ash cooling conveying system |
| CN104791769A (en) * | 2015-04-24 | 2015-07-22 | 扬州斯大锅炉有限公司 | Combustion smoke supply device |
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