CN105953247A - Boiler furnace slag recycling system - Google Patents
Boiler furnace slag recycling system Download PDFInfo
- Publication number
- CN105953247A CN105953247A CN201610370905.7A CN201610370905A CN105953247A CN 105953247 A CN105953247 A CN 105953247A CN 201610370905 A CN201610370905 A CN 201610370905A CN 105953247 A CN105953247 A CN 105953247A
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- CN
- China
- Prior art keywords
- recovery bin
- slag
- recovery
- boiler
- hearth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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 invention provides a boiler furnace slag recycling system. The boiler furnace slag recycling system comprises a hearth, a slag dredger, a recovery bin and a recovery pipe; the recovery bin is mounted below the hearth; an inlet of the slag dredger is formed below the recovery bin; the recovery pipe is connected to the upper end of the side surface of the hearth from the side surface of the recovery bin; a recovery bin inlet air brake and a recovery bin slag discharge air brake are respectively arranged at the upper and lower two ends of the recovery bin; a hot air inlet is mounted on the side surface, opposite to the recovery pipe, of the recovery bin; and a combustor is arranged in the connecting place between the recovery pipe and the hearth. The boiler furnace slag recycling system is higher in hearth maintenance safety, reduces the car content of slag in a boiler, improves the boiler efficiency, has no need to highly open secondary air on the lower layer to reduce the slag to influence the boiler combustion, reduces faults of the slag dredger, prolongs the life of the slag dredger, and reduces the electric consumption. One part of slag physical heat is directly discharged in to a boiler furnace to reduce the heat loss of the boiler. The hearth is not directly communicated with the water surface of the slag dredger to prevent water vapor from directly entering the hearth to influence the boiler combustion so as to cause extinction.
Description
Technical field
The present invention relates to a kind of boiler furnace big slag recycling system.
Background technology
Thermal power plant's big slag of boiler with dry bottom furnace the most directly drains in dragveyer hull at present, exists
Problems with: 1, using water seal baffle plate pushing off the slag when dragveyer overhauls, safety coefficient is the highest.2、
Directly by lorry loading to the most grey field after the discharge of boiler big slag, for the higher big slag of phosphorus content without
Method utilizes, and affects the economy of boiler.3, operations staff is general in order to reduce big slag phosphorus content
By opening big bottom wind, reducing the stability of boiler combustion, the boiler poor for burning increases
Add the risk of boiler flameout.4, the boiler quantity of slag is big, and dragveyer rotating speed is fast and exerts oneself big, easily
Cause dragveyer fault and affect the life-span of dragveyer, increasing the power consumption of dragveyer.5, ash
Slag physical thermal is directly discharged in dragveyer, affects economy.6, the water produced when collapsing big Jiao
Steam is more, and entering burner hearth affects the burning of boiler, is likely to result in boiler flameout.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of big slag of boiler furnace and recycle
System.
The present invention is achieved by the following technical programs.
A kind of boiler furnace big slag recycling system that the present invention provides, including burner hearth, drags for slag
Machine, recovery bin, recovery tube；Described recovery bin is arranged on below burner hearth, and the import of dragveyer sets
Putting below recovery bin, described recovery tube is connected to the side of burner hearth from the side of recovery bin
End, the two ends up and down of described recovery bin are respectively arranged with recovery bin import air-lock and recovery bin deslagging
Air-lock, recovery bin with recovery tube side is also equipped with recovery tube described in hot wind inlet air valve
It is additionally provided with burner with burner hearth junction.
The two ends of described recovery tube are separately installed with hot blast manual brake A and hot blast manual brake B.
Described recovery tube is additionally provided with drainage screen and hot-blast outlet air-lock with the junction of recovery bin.
The beneficial effects of the present invention is:
1), closed by big slag recovery bin recovery bin import air-lock during dragveyer maintenance, big slag reclaims
Storehouse 3 recovery bin deslagging air-lock cuts out, and the safety of maintenance is higher.
2), reduce the big slag phosphorus content of boiler, improve boiler efficiency.
3), lower floor's secondary wind need not be opened very big for dropping big slag, affect the burning of boiler；This is
After system transformation, combustion adjustment secondary air register is without the concern for the high factor of big slag phosphorus content, only needs note
Overweight flameholding to be adjusted.
4), minimizing dragveyer rotating speed is reduced and minimizing of exerting oneself by the quantity of slag, it is possible to reduce dragveyer event
Barrier and the life-span of prolongation dragveyer, and reduce the power consumption of dragveyer.
5), part physical heat of ash dregs be directly discharged in boiler furnace, reduce boiler heat loss.
6), when collapsing big Jiao, big Jiao first falls on big slag recovery bin recovery bin import air-lock, big slag
Recovery bin recovery bin import air-lock falls on big slag recovery bin recovery bin deslagging air-lock again after opening,
Big slag recovery bin recovery bin deslagging air-lock finally falls in dragveyer after opening, burner hearth and dragveyer
The water surface the most directly connects, it is therefore prevented that steam is directly entered burner hearth affects the burning of boiler, makes
Become flame-out.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: 1-burner hearth, 2-dragveyer, 3-recovery bin, 4-recovery tube, 5-burner, 6-
Drainage screen, 7-hot-blast outlet air-lock, 8-hot blast manual brake A, 9-hot blast manual brake B, 10-reclaim
Storehouse import air-lock, 11-hot wind inlet air-lock, 12-recovery bin deslagging air-lock.
Detailed description of the invention
Technical scheme is described further below, but claimed scope is not limited to
In described.
A kind of boiler furnace big slag recycling system, including burner hearth 1, dragveyer 2, recovery bin
3, recovery tube 4；Described recovery bin 3 is arranged on below burner hearth 1, and the import of dragveyer 2 is arranged on
Below recovery bin 3, described recovery tube 4 is from the side that the side of recovery bin 3 is connected to burner hearth 1
End, the two ends up and down of described recovery bin 3 are respectively arranged with recovery bin import air-lock 10 and recovery bin
Deslagging air-lock 12, recovery bin 3 with recovery tube 4 side is also equipped with hot wind inlet air valve 11
Described recovery tube 4 is additionally provided with burner 5 with burner hearth 1 junction.
The two ends of described recovery tube 4 are separately installed with hot blast manual brake A8 and hot blast manual brake B9.
Openable clean-out door is set at the two ends of hand sluice valve, it is simple to the slag in cleaning pipeline.
Described recovery tube 4 is additionally provided with drainage screen 6 and hot-blast outlet gas with the junction of recovery bin 3
Lock 7.Prevent big slag from entering First air line clogging.
The using method of the present invention is,
(1), first by big slag recovery bin 3 recovery bin import air-lock 10 open, native system burner hearth
Big slag recovery bin 3 recovery bin deslagging air-lock 12 cuts out；Heat primary air recovery bin import air-lock 10 closes
Close；Big slag in heat primary air recovery bin deslagging air-lock 12 closedown 1 will fall directly into big slag and return
Receive storehouse 3；
(2), when the timing of big slag recovery bin 3 material position one, by the recovery bin import of big slag recovery bin 3
Air-lock 10 cuts out；The recovery bin deslagging air-lock 12 of big slag recovery bin 3 cuts out；Hot wind inlet air-lock
11 open；Hot-blast outlet air-lock 7 is opened, and utilizes heat primary air by the ash in big slag recovery bin 3
Again burn in being blown into burner hearth；
(3), after slag big in big slag recovery bin 3 has blown, hot wind inlet air-lock 11 cuts out,
Hot-blast outlet air-lock 7 cuts out, and big slag recovery bin 3 recovery bin deslagging air-lock 12 is opened, and is returned by big slag
Receive the coke button in storehouse 3 and the big slag not blown away enters in dragveyer；
(4), after coke button, in big slag recovery bin 3 and the big slag not blown away are clapped to the greatest extent, big slag is returned
Receive storehouse 3 recovery bin deslagging air-lock 12 to close；Big slag recovery bin 3 is received storehouse import air-lock 10 and is opened, this
Sample just completes a circulation, is constantly blown in burner hearth by big slag.
The movement time of one circulation calculates according to the quantity of slag, calculates each furnace hopper many
Can be filled by this recovery bin for a long time, just utilizing this time is a circulation time, but the time must
Certain surplus need be left.It is an inclined-plane at big slag recovery bin 3 to pipeline of slagging tap, it is simple to blow
Big slag therein.If relatively or other reasons needs to exit fortune the big slag phosphorus content certain period
During row, only big slag recovery bin 3 recovery bin import air-lock 10 need to be opened；Big slag recovery bin 3 reclaims
Storehouse deslagging air-lock 12 is opened；Heat primary air recovery bin import air-lock 10 cuts out；Hot-blast outlet air-lock
7 close, and just directly can be got rid of by big slag and not recycle.
Claims (3)
1. a boiler furnace big slag recycling system, including burner hearth (1), dragveyer (2),
Recovery bin (3), recovery tube (4), it is characterised in that: described recovery bin (3) is arranged on stove
Thorax (1) lower section, the import of dragveyer (2) is arranged on below recovery bin (3), described time
Closed tube (4) is connected to the upper end, side of burner hearth (1) from the side of recovery bin (3), described
The two ends up and down of recovery bin (3) are respectively arranged with recovery bin import air-lock (10) and recovery bin
Deslagging air-lock (12), recovery bin (3) with recovery tube (4) side is also equipped with heat
Wind inlet air valve (11), described recovery tube (4) and burner hearth (1) junction are additionally provided with combustion
Burner (5).
2. boiler furnace big slag recycling system as claimed in claim 1, it is characterised in that:
The two ends of described recovery tube (4) are separately installed with hot blast manual brake A (8) and hot blast manual brake B
(9)。
3. boiler furnace big slag recycling system as claimed in claim 1, it is characterised in that:
Described recovery tube (4) is additionally provided with drainage screen (6) and heat with the junction of recovery bin (3)
Wind 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 true CN105953247A (en) | 2016-09-21 |
| CN105953247B CN105953247B (en) | 2018-02-27 |
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ID=56910910
Family Applications (1)
| 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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| Country | Link |
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Cited By (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 |
| CN107676794A (en) * | 2017-11-01 | 2018-02-09 | 中冶焦耐(大连)工程技术有限公司 | A kind of dangerous waste CIU dual firing chamber bottom steam retracting device and method |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916491A (en) * | 2006-08-10 | 2007-02-21 | 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 |
| CN102954478A (en) * | 2012-12-12 | 2013-03-06 | 中国电力工程顾问集团华东电力设计院 | Air-water combined cooling dry slagging method and system of pulverized coal boiler |
| 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 |
| WO2016169126A1 (en) * | 2015-04-24 | 2016-10-27 | 扬州斯大锅炉有限公司 | Combustion flue gas supply device |
-
2016
- 2016-05-30 CN CN201610370905.7A patent/CN105953247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916491A (en) * | 2006-08-10 | 2007-02-21 | 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 |
| CN102954478A (en) * | 2012-12-12 | 2013-03-06 | 中国电力工程顾问集团华东电力设计院 | Air-water combined cooling dry slagging method and system of pulverized coal boiler |
| 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 |
| WO2016169126A1 (en) * | 2015-04-24 | 2016-10-27 | 扬州斯大锅炉有限公司 | Combustion flue gas supply device |
Cited By (4)
| 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 |
| CN107676794A (en) * | 2017-11-01 | 2018-02-09 | 中冶焦耐(大连)工程技术有限公司 | A kind of dangerous waste CIU dual firing chamber bottom steam retracting device and method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105953247B (en) | 2018-02-27 |
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