CN203501161U - Coal slurry burning boiler - Google Patents
Coal slurry burning boiler Download PDFInfo
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- CN203501161U CN203501161U CN201320332671.9U CN201320332671U CN203501161U CN 203501161 U CN203501161 U CN 203501161U CN 201320332671 U CN201320332671 U CN 201320332671U CN 203501161 U CN203501161 U CN 203501161U
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- coal slurry
- separator
- boiler
- coal
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Abstract
The utility model relates to a coal slurry burning boiler, which belongs to the technical field of environmental engineering. The coal slurry burning boiler comprises a bed, a hearth, a collision separation device, a boiler barrel, a fluidized bed return chamber, a superheater, a coal economizer, an air preheater, an under-bed igniter, an auxiliary burning system, a platform escalader, a boiler wall steel frame and the like; the front surface of the coal slurry burning boiler is connected with a concentrated material pump, a cabin and a scraper conveyor; and the inner lower part of the hearth is a dense-phase area, the top of the hearth is provided with a smoke turning position, the bed is arranged below the hearth, and a water cooling air chamber is arranged below the bed. The coal slurry burning boiler has the advantages that by adopting the fluidized bed novel technology that the coal slurry large-granularity feed is adopted as the high density fluidized bed material, the coal slurry is primarily separated before entering the high-temperature superheater, an air outlet cyclone separator is arranged behind the low-temperature superheater so as to secondarily separate the coal slurry, the ash is returned into the boiler to be continuously burned, so that the coal slurry burning boiler has the advantages of high burning efficiency, compact structure, convenience in operation and overhauling and the like.
Description
Technical field
The utility model belongs to field of environment engineering technology, relates in particular to a kind of coal combustion boiler that adopts fluidized suspension high effect coal combustion.
Background technology
In coal preparation process, give off a large amount of coal slimes, moisture and the content of ashes of coal slime are high, are difficult to recycling, but pile up to get up not only to waste a large amount of land resource, and to environment.Effective disposal and utilization of realizing coal slime is that China coal industry is failed the problem thoroughly solving for many years always.
The ash content of coal slime is high, and calorific value is low, and retentiveness is strong, thereby its processing and utilizing is very difficult.Like this, not only waste mass energy, and caused the pollution to environment.For the disposal and utilization of coal slime, at present domestic some R&D institutions and producer also taked some measures, as made civil honeycomb briquette, bake bricks etc., but all has suitable limitation.And coal slime is directly reclaimed as the fuel of industry or power boiler, it is the very effective measure that solves coal slime utilization and the problem of processing.
The direct burning of coal slime, is to be difficult to deep dehydration and dry washing coal slime, is directly used in fluidized-bed combustion boiler burning, as heat supply, or is changed into electric energy, to solve coal slime because of moisture is large, fine size brings transportation difficulty and the pollution to environment.
Summary of the invention
For solving the deficiencies in the prior art, the purpose of this utility model is the coal combustion boiler that proposes a kind of small investment, easy care, can effectively utilize the discarded coal combustion heat supply (generating) producing after coal washing.
The technical scheme that the utility model adopts is to achieve these goals: a kind of coal combustion boiler, is comprised of critical pieces such as bed, burner hearth, shock separator, drum, fluid bed material return chamber, superheater, economizer, air preheater, ignition under bed device and standby firing system, platform staircase, furnace wall steelframes; Before described coal combustion boiler, be connected to Concentrated material pump, feed bin and drag conveyor; Bottom is emulsion zone in described burner hearth, and top is provided with flue gas turning, is provided with bed below described burner hearth, is water cooled wind chamber below bed; Described shock separator is provided with next stage separator and second-stage separator, and described second-stage separator is also told cyclonic wind separator; Below described shock separator, be provided with ignition under bed device, described economizer is located at the right side of clashing into separator, the left side of air preheater; Burner hearth emulsion zone is provided with horizontal pipe laying, on described horizontal pipe laying, has welded annular fin, to coal slime point and returning charge mouth place pipe laying, is getting out of the way; Described roof of the furnace flue gas turning has all been welded with the different pin of density in subregion with ceiling and horizontal flue bag wall; In described Cyclone Separator with Downward Exhaust Gas, lay wear-resistant castable, after sintering, there is good anti-wear performance.
Boiler operatiopn regulates bed depth by discharging bottom slags, adds cyclone separator by flying dust separation and strile-backs, further to improve efficiency of combustion.80% hot blast enters bed through water cooled wind chamber, and all the other 20% hot blasts are sent into burner hearth by the overfiren air port that is arranged in bed top and formed two sections of burnings, to reduce NO
xdischarge.
The utility model has the advantages that: the fluid bed new technology that adopts coal slime coarsegrain feed different specific density material in CFB, before high temperature superheater, carry out first separation, after low temperature superheater, set the cyclone separator of giving vent to anger, carry out secondary separation, and will in grey loopback stove, burn away, there is efficiency of combustion high, compact conformation, the advantages such as convenient are overhauled in operation.Concrete feature is as follows:
1. low circulating ratio, this boiler is compared with common fluidized-bed combustion boiler, adopts lower circulating ratio (1～2), is guaranteeing that under the prerequisite of efficiency of combustion, lower circulating ratio has avoided a large amount of ash contents ineffectually in stove, to circulate, and has reduced private power consumption.
2. special separator type, separator adopts lower ash output, lower exhaust mode, fits like a glove with boiler flow process, although separative efficiency is lower slightly, flue gas resistance can reduce, and also makes simple and reasonable.
3. in, temperature is separated, adopts warm isolation technics in flying dust, and separator operating temperature, a little less than 600 ℃, is arranged in economizer top, and this arrangement can dwindle physical dimension, makes whole boiler structure compact.
4. systematized tight abrasionproof measure, all takes such as reducing cigarette speed, adding the tight abrasionproof measures such as wear strip at bed pipe laying and other easy mill place, guarantees the long-time normal operation of boiler.
5. pipe laying structure, owing to using inferior fuel, low circulating ratio, emulsion zone combustion share is larger, and emulsion zone arranges pipe laying and is conducive to bed temperature and controls.
6. a lower hot gas ignition, boiler adopts the lower hot gas ignition of the bed of fluidization mode, and this ignition method is saved with oil, and the start-stop time is few, and according to ignition process energy differential equation, this boiler can be in 60min left-right dots pyrogene merit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:
Embodiment, as shown in Figure 1, a coal combustion boiler, is comprised of critical pieces such as bed 2, burner hearth 1, shock separator, drum, fluid bed material return chamber, superheater, economizer 6, air preheater 7, ignition under bed device 5 and standby firing system, platform staircase, furnace wall steelframes; Before described coal combustion boiler, be connected to Concentrated material pump, feed bin and drag conveyor; The interior bottom of described burner hearth 1 is emulsion zone, and top is provided with flue gas turning, and described burner hearth 1 is provided with bed 2 below, and bed 2 is water cooled wind chamber 3 below; Described shock separator is provided with next stage separator and second-stage separator 4, and described second-stage separator 4 is also told cyclonic wind separator; Below described shock separator, be provided with ignition under bed device 5, described economizer 6 is located at the right side of clashing into separator, the left side of air preheater 7; Burner hearth emulsion zone is provided with horizontal pipe laying, on described horizontal pipe laying, has welded annular fin, to coal slime point and returning charge mouth place pipe laying, is getting out of the way; Described roof of the furnace flue gas turning has all been welded with the different pin of density in subregion with ceiling and horizontal flue bag wall; In described Cyclone Separator with Downward Exhaust Gas, lay wear-resistant castable, after sintering, there is good anti-wear performance.Coal slime and batching medicament are delivered to homogenization storage by delivery pump, by pressure-air or mechanical system, stir and homogenizing, the coal slime mixture shipping from homogenization storage delivers into feed bin by scraper plate, by Concentrated material pump, the coal slime of lotion state is delivered to coal combustion boiler furnace 1 bottom emulsion zone again, burn in the coal combustion boiler coal slime high-pressure atomization airduct of device of coal slime of utilization is broken into tiny particle by the coal slime of whereabouts, and it is sent out in burner hearth 1, after mixing, the flue gas of coal slime and rising and recycle stock burn in burner hearth 1; Coal slime combustion product gases and flying dust in stove wash away impingement separator in burner hearth 1 outlet, fall to melting down again thorax 1 and burn away after a part of flying dust separation; High-temperature flue gas enters down through high low temperature superheater the cyclone separator of giving vent to anger again, and the flying dust separating is sent back in stove and burnt away through fluid bed material returning device; Smoke gas flow enters air preheater 7 after economizer 6 flue dust of sedimentation part again, through deduster, air-introduced machine, cigarette fontanel, enters atmosphere.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, the apparent variation of being extended out thus or change are still among protection domain of the present utility model.
Claims (1)
1. a coal combustion boiler, bed, burner hearth, shock separator, drum, fluid bed material return chamber, superheater, economizer, air preheater, ignition under bed device and standby firing system, platform staircase, furnace wall steelframe, consist of, feature is to be connected to Concentrated material pump, feed bin and drag conveyor before described coal combustion boiler; Bottom is emulsion zone in described burner hearth, and top is provided with flue gas turning, is provided with bed below described burner hearth, is water cooled wind chamber below bed; Described shock separator is provided with next stage separator and second-stage separator; Below described shock separator, be provided with ignition under bed device, described economizer is located at the right side of clashing into separator, the left side of air preheater; Burner hearth emulsion zone is provided with horizontal pipe laying, on described horizontal pipe laying, has welded annular fin, to coal slime point and returning charge mouth place pipe laying, is getting out of the way; Described roof of the furnace flue gas turning has all been welded with the different pin of density in subregion with ceiling and horizontal flue bag wall; In described Cyclone Separator with Downward Exhaust Gas, laid wear-resistant castable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320332671.9U CN203501161U (en) | 2013-06-09 | 2013-06-09 | Coal slurry burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320332671.9U CN203501161U (en) | 2013-06-09 | 2013-06-09 | Coal slurry burning boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501161U true CN203501161U (en) | 2014-03-26 |
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ID=50332137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320332671.9U Expired - Fee Related CN203501161U (en) | 2013-06-09 | 2013-06-09 | Coal slurry burning boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN203501161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202536A (en) * | 2015-10-23 | 2015-12-30 | 济南市琦泉热电有限责任公司 | Method for improving coal-slime-whole-burning circulating fluidized bed boiler efficiency |
| CN106642185A (en) * | 2016-11-14 | 2017-05-10 | 北京中矿环保科技股份有限公司 | Process and system for mixed burning of coal slime in big proportion in coal-powder boiler |
-
2013
- 2013-06-09 CN CN201320332671.9U patent/CN203501161U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202536A (en) * | 2015-10-23 | 2015-12-30 | 济南市琦泉热电有限责任公司 | Method for improving coal-slime-whole-burning circulating fluidized bed boiler efficiency |
| CN106642185A (en) * | 2016-11-14 | 2017-05-10 | 北京中矿环保科技股份有限公司 | Process and system for mixed burning of coal slime in big proportion in coal-powder boiler |
| CN106642185B (en) * | 2016-11-14 | 2018-08-17 | 北京中矿环保科技股份有限公司 | A kind of coal-powder boiler large scale, which is mixed, burns coal slime technique and system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160810 Address after: 215129 Jiangsu Province, Suzhou City Shishan Road 35, International Building 36 buildings Patentee after: Suzhou port Yangxin energy Limited by Share Ltd Address before: 215127 room 16, Pioneer Park, 412 Ming Lu, Luzhi Town, Suzhou, Jiangsu, Wuzhong District Patentee before: Suzhou Zhanyang New Energy Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou port Yangxin energy Limited by Share Ltd Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou port Yangxin energy Limited by Share Ltd Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20170609 |