CN102183025B - Urban garbage incinerating boiler - Google Patents
Urban garbage incinerating boiler Download PDFInfo
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- CN102183025B CN102183025B CN2011101221811A CN201110122181A CN102183025B CN 102183025 B CN102183025 B CN 102183025B CN 2011101221811 A CN2011101221811 A CN 2011101221811A CN 201110122181 A CN201110122181 A CN 201110122181A CN 102183025 B CN102183025 B CN 102183025B
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Abstract
The invention provides a closed type urban garbage incinerating boiler for incinerating urban garbage, which comprises a boiler body, a water tank, a combustion chamber and a fly ash outlet, wherein the combustion chamber is provided with an incinerating plate, the width of the incinerating plate is consistent with the width of the combustion chamber, the groove type incinerating plate divides the combustion chamber into a combustion cavity and a combustion-supporting cavity and is provided with through holes, and introduced mixed oxygen passes through the combustion-supporting cavity and enters into the combustion cavity through the through holes on the incinerating plate to support the combustion of the garbage dried by a drier. The combustion temperature of the incinerating boiler can reach above 850 DEG C; the incineration of the garbage can be controlled over 2 seconds; the production of dioxins and furans can be effectively inhibited; and produced fly ash (smoke) can only be discharged out of the fly ash outlet, so that convenience is provided for the treatment of the fly ash.
Description
Technical field
The present invention relates to a kind of burning boiler that is used for city garbage burning, under particularly a kind of enclosed environment municipal refuse is carried out clean-burning burning boiler.
Background technology
Municipal refuse comprises house refuse and medical waste; The processing of existing municipal refuse (hereinafter to be referred as the rubbish) incinerators with fire grate that adopt burn more; Produce slag and flying dust after burning, contain dust granule and pernicious gas in the flying dust, after flue is handled, discharge.Existing refuse treatment plant has following shortcomings: because the Machine Design of fire grate can't be sealed incinerator, the pernicious gas during burning in the flying dust is discharged unavoidably; Secondly, incineration temperature is low, and incineration firing is insufficient, and the dioxin harmful substance can't effectively be suppressed; The 3rd, mechanically operated fire grate is long service time, and maintenance work is heavier.The 4th, the rubbish of burning is many owing to containing organic matter, and water content is big, and is insufficient during burning, and the pernicious gas amount of generation is big, and environmental pollution is bigger.
Summary of the invention
For overcoming above problem, following technical scheme is proposed at present:
The city garbage burning boiler comprises boiler body, water tank; The combustion chamber, charging aperture, slag notch; The combustion chamber is provided with the burning plate, and width is consistent with the combustion chamber width, becomes to be obliquely installed with horizontal plane; Burning plate and horizontal plane angle is 10 ° to 40 °, burns plate the combustion chamber is separated into separately independently combustion chamber and combustion-supporting chamber.Charging aperture is communicated with combustion chamber, and charging aperture is arranged on and burns above the plate hight end, and slag notch joins with burning plate low side.Top, combustion chamber is provided with the flying dust outlet, and the flying dust outlet is communicated with combustion chamber, and the flying dust outlet is provided with heat collector.Also be provided with start-up burner in the combustion chamber, be used to feed burning gases such as natural gas and light rubbish in the burning boiler; The burning plate is a fluted body, burns plate and has through hole, and the upper shed of through hole is being burned on the plate surface, and under shed is burning the plate bottom surface, and through hole is communicated with combustion chamber with combustion-supporting chamber, and the opening of under shed is greater than upper shed; Combustion-supporting chamber is provided with the combustion adjuvant nozzle, and concentration is that the combustion adjuvants such as oxygen enrichment more than 30% are injected in the combustion-supporting chamber through the combustion adjuvant nozzle through the combustion adjuvant pipeline, and combustion adjuvant is sprayed from the through hole upper shed through through hole.Slag notch links to each other with the conveying worm sealing, and the slag after the burning is discharged through conveying worm.
Further be, burn the plate both sides and be provided with the oxygen therapy pipeline, oxygen enrichment or high purity oxygen for feeding in the oxygen therapy pipeline, the oxygen therapy pipeline is provided with nozzle, and nozzle opening is used in combustion chamber, spraying into pure oxygen or mixed oxygen in burning on the plate surface.Nozzle tilts to burning the plate low side, and the angle b that forms with the oxygen therapy pipeline is 15 °-70 °, makes the more clean-burning while of rubbish, blows rubbish and moves to slag notch.
Further be, burn plate and have a plurality of through holes that through hole upper shed center and under shed line of centres line direction are 15 °-60 ° with burning base plate plane angle c.
Further be, burn the plate plate and process,, can bear higher temperature as processing by refractory ceramics by exotic material.
Further be, conveying worm becomes to be obliquely installed with horizontal plane, and from the horizontal by 10 ° of-45 ° of angles, conveying worm and cross current maintain water, is used for the cooling of the slag behind the incineration firing and prevents that the slag fly ash emission is to air.
Further be, rubbish slag notch top is greater than its bottom that is connected with conveying worm, and slag can be deposited in the rubbish slag notch, and the one, prevent the flying dust discharge, the 2nd, the steam in the conveying worm can be lowered the temperature to slag.
Further be, burn and to be provided with vibrator below the plate, produce when piling up, rubbish is moved to slag notch through vibrator in waste incineration.
Further be that combustion adjuvant nozzle and start-up burner are fan-shaped.
Further be that the flying dust outlet also is provided with a heat dump, is used to reduce the temperature of flying dust.
Further be that the water tank wall of combustion chamber is provided with endothermic tube.
For ease of observing the waste incineration situation, on the boiler wall, also be provided with observation window.
Rubbish gets into combustion chamber from charging aperture; After the combustion adjuvant nozzle sprays into the mixing oxygen that concentration is the oxygen enrichment more than 30%, light rubbish through start-up burner, mix oxygen and form air-flow after through the up-small and down-big through hole of opening; Because through hole has certain angle with the burning plate; Air-flow blows to the slag notch direction, can rubbish be blown afloat fully to burn, and the rubbish with burning blows to the slag notch direction simultaneously.If observing the waste incineration deficiency fills; Can also be high purity oxygen or oxygen enrichment more than 99% through the pipeline feeding concentration of burning on the plate; Because the nozzle on the pipeline also is to tilt to the slag notch direction, further strengthens the sufficient combustion of waste incineration and move to the slag notch aspect.Simultaneously, start-up burner also can spray into the incendiary agent like natural gas etc., in order to strengthen the burning of rubbish.Form to pile up if burn away the refuse, can the Vibration on Start-up device, rubbish is moved to slag notch.The slag that whole combustion chamber produces is piled up at slag notch, and flying dust can not discharged from slag notch, can only discharge from the flying dust outlet; At this moment, owing to burn fully, incineration temperature reaches more than 850 °; Can effectively suppress the generation of bioxin, furans, bring convenience for next step flying dust handling procedure.Slag after the burning is discharged through conveying worm, because incineration temperature is high, can reach more than 850 °; Conveying worm becomes to be obliquely installed with horizontal plane; At conveying worm and cross current, maintain entry, can be constantly to the cooling of slag with prevent that the slag fly ash emission is in air.And the slag that produces through high temperature can be used for the brickmaking or the raw material of paving the way after treatment.
The heat that produces of burning away the refuse is used for the water of heating water tank, and high-temperature gas is discharged through steam pipeline, can be used for other purposes such as generating, hot water, and the energy of waste incineration can utilize once more like this.Inlet channel guarantees that the water in the water tank is sufficient.
Burn effect for further increasing, also be provided with a drying device at garbage inlet.This drying device position is higher than the burning boiler charging aperture, and is tightly connected with charging aperture, and it comprises hothouse; Be located at the rubbish belt feeder or the high temperature rubbish belt feeder on hothouse top, be located at the drier in the hothouse, the hothouse top is provided with air draft pipe; Be used to collect the gas that produces behind the garbage drying; Air draft pipe is communicated with combustion-supporting chamber, delivers to combustion-supporting chamber through air draft pipe, delivers to combustion chamber through through hole at last and burns; Also can the gas of collecting be entered into the combustion adjuvant pipeline through air draft pipe, deliver to the combustion chamber internal combustion at last.Drier is made up of snake pipe; High-temperature steam gets into drier through the snake pipe inlet end; High-temperature steam is used for garbage drying when dispelling the heat through snake pipe, steam is discharged in the air through snake pipe exhaust end end or as other purposes such as hot water, snake pipe can be arranged setting more.Hothouse base plate and horizontal aspect are obliquely installed, and certain slope is arranged, and also are provided with the rubbish vibrator below the base plate.
Further be, the snake pipe inlet end is communicated with jet chimney, and the heat that burning boiler capable of using like this produces is used for the drying of rubbish.
Rubbish is through after the go-no-go, fragmentation, if better rubbish is burnt, and can be with after rubbish and the coal slime mixing; Be sent in the hothouse through the rubbish belt feeder, fall naturally, after the drier drying; Fall on the base plate of hothouse bottom; Because base plate and horizontal plane have certain angle, garbage energy freely slips into or slides in the charging aperture through the oscillator vibration, gets into combustion chamber and burns.Steam that produces behind the garbage drying and peculiar smell enter into combustion chamber and burn under the effect of air draft pipe, and the sealing of drying device and charging aperture is connected, and have avoided steam and peculiar smell directly to be discharged in the atmosphere.
In combustion chamber, burn through dried rubbish, reduced the moisture content in the rubbish, incineration firing soon and more abundant, the generation of so further minimizing pernicious gas.
More than device also has following beneficial effect: the incineration firing boiler structure is simple, no fire grate design, and maintainability is good; Adopt the mixed oxygen of feeding that dried rubbish is burnt, can guarantee the abundant burning of rubbish, if find that incineration firing is insufficient; Can improve efficiency of combustion through oxygen therapy pipeline input oxygen enrichment,, can suppress the generation of bioxin, skin pernicious gas because ignition temperature can reach more than 850 °; Through mixing the control of oxygen pressure to being blown into; Cooperate the use of vibrating head, municipal refuse is stopped more than 2 seconds in combustion chamber, reach the burning requirement.And sealed type designs, and the flying dust that in burning process, produces can only be discharged from the flying dust outlet, guarantees to burn the environmental quality of field.Simultaneously, the steam of generation can utilize by secondary again.
Description of drawings
Fig. 1: burning boiler structural representation.
Fig. 2: burn the plate schematic cross-section.
Fig. 3: burning boiler side view.
Fig. 4: burn the plate schematic bottom view.
Fig. 5: oxygen therapy pipeline structural representation.
Number among the figure: 1 boiler body, 2 water tanks, 3 combustion chambers, 4 charging apertures, 5 slag notches, the outlet of 6 flying dusts, 7 burn plate; 8 combustion chambers, 9 combustion-supporting chambeies, 10 heat dumps, 11 start-up burners, 12 through holes, 13 oxygen therapy pipelines, 14 nozzles; 15 combustion adjuvant nozzles, 16 conveying worms, 17 vibrators, 18 observation windows, 19 drying devices, 20 hothouses, 21 rubbish belt feeders; 22 driers, 23 air draft pipes, 24 inlet ends, 25 exhaust ends, 26 base plates, 27 jet chimneys, 28 inlet channels; 29 rubbish vibrators, 30 air blasts, 31 combustion adjuvant pipelines, 32 upper sheds, 33 under sheds, 34 endothermic tubes, 35 bracing frames.
The specific embodiment:
Like accompanying drawing 1, the city garbage burning boiler comprises boiler body 1, water tank 2, and combustion chamber 3, charging aperture 4, slag notch 5, water tank 2 are provided with the jet chimney 27 and inlet channel 28 that is communicated with it.
The burning plate 7 consistent with combustion chamber 3 width arranged in the combustion chamber 3; Burning plate is 25 ° with horizontal plane angle, burns plate 7 and is made up of refractory ceramics, by bracing frame 35 supports; Burn plate 7 combustion chamber 3 is separated into each own independent burning chamber 8 and combustion-supporting chamber 9; 8 two sides, combustion chamber and top are water tank 2 bodies, and available high temperature rubber packing around 9 bottom surfaces, combustion-supporting chamber guarantees that mixing oxygen in the combustion-supporting chamber 9 can not spill from combustion-supporting chamber.Can adopt spiral shell to change when burning the plate installation and use after jack regulates height, burn plate and can process polylith in advance, fastening forms.Charging aperture 4 be arranged on burn plate 7 high-end above, slag notch with burn plate 7 low sides and join.
One flying dust outlet 6 is arranged at 3 tops, combustion chamber, is communicated with combustion chamber 8, and flying dust outlet 6 is provided with heat dump 10.
In the middle of burning plate 7 and charging aperture 4, be provided with a start-up burner 11, be used to feed burning gases such as natural gas and light rubbish in the burning boiler.
Burning plate 7 is fluted body; Burn plate and have through hole 12, the upper shed of through hole 12 is being burned on plate 7 surfaces, and under shed is burning plate 7 bottom surfaces; Through hole 12 is communicated with combustion chamber 8 with combustion-supporting chamber 9; The opening of under shed burns plate 7 and has a plurality of through holes 12 greater than upper shed, and through hole 12 upper shed centers and under shed line of centres line direction are 30 ° with burning base plate plane angle.Burning plate 7 adopts steel construction bracing frame 35 to support.
Burn the plate both sides and be provided with oxygen therapy pipeline 13, oxygen therapy pipeline 13 is provided with nozzle 14, and nozzle opening is in burning on plate 7 surfaces; Nozzle 14 tilts to burning plate 7 low sides; The angle c that forms with oxygen therapy pipeline 12 is 30 °, makes the more clean-burning while of rubbish, blows rubbish and moves to slag notch.When incineration firing does not fill,, make rubbish reach clean-burning purpose through oxygen therapy pipeline 13 input high purity oxygen.
There is a fan-shaped combustion adjuvant nozzle 15 in combustion-supporting chamber 9, and the oxygen enrichment of employing 60% under the effect of air blast 30, in being injected to combustion-supporting chamber, makes mixture of oxygen spray from the through hole upper shed through through hole 12 through combustion adjuvant nozzle 15 through combustion adjuvant pipeline 31.
Be provided with vibrator 17 below the burning plate, vibrator is connected with the steel construction piece bracing frame 35 that supports the burning plate.When waste incineration produces accumulation, through vibrator rubbish is moved to slag notch, because mixture of oxygen sprays into combustion-supporting chamber constantly, the high temperature in the combustion chamber can not have influence on the application of vibrator.
On boiler body 1 wall, also be provided with observation window 18, combustion chamber 8 water tank walls are provided with endothermic tube 34.
Like Fig. 1, burn effect for further increasing, also be provided with a drying device 19 at garbage inlet.This drying device 19 is higher than charging aperture 4; And be connected with charging aperture 4 sealing, comprise hothouse 20, be located at the high temperature rubbish belt feeder 21 on hothouse 20 tops; Be located at the drier 22 in the hothouse; The hothouse top is provided with air draft pipe 23, and air draft pipe 23 is communicated with combustion adjuvant pipeline 31, is communicated with combustion-supporting chamber 9 through high pressure blower 30 again.The gas that produces behind the garbage drying gets in the combustion adjuvant pipeline 31 through air draft pipe 23, under high pressure blower 30 effects, sends into combustion-supporting chamber 9 by fan-shaped combustion adjuvant nozzle 15, delivers to combustion chamber 8 through through hole 12 at last and burns.Drier 22 is made up of snake pipe, and snake pipe inlet end 24 is communicated with jet chimney 27, after high-temperature steam gets into drier 22, is used for garbage drying during through the snake pipe heat radiation, and steam is discharged to air through snake pipe exhaust end 25.Hothouse base plate 26 tilts with horizontal plane, and certain slope is arranged, and also is provided with rubbish vibrator 29 below the base plate.
Above-mentioned burning boiler is simple and reasonable, and maintenance is little, and produced simultaneously heat can be easy to be used for generating and wait other purposes, can significantly reduce operating cost; And hermetically sealed design, sufficient combustion, flying dust can only be discharged from the flying dust outlet; For next step flying dust processing brings convenience, the slag of discharge is deposited safety through high-temp combustion; Damage to the environment can not be easy to be used for its way yet, such as the packing material in brickmaking, road metal, the bituminous paving or using the manufacturing hydraulic cement.Above-mentioned burning boiler be used for substituting existing much single, arrange incinerator more and can produce very big social benefit and economic benefit.If the employing water tank is 10 tons burning boiler design, per hour can handle the rubbish more than 20 tons at least, particularly be suitable for the municipal refuses that need handle in a large number now.This burning boiler needs comburant oxygen, can near burning boiler, build an oxygen installation, is used to provide mixed oxygen or oxygen enrichment.
Claims (10)
1. the city garbage burning boiler comprises boiler body (1), water tank (2); Combustion chamber (3), charging aperture (4), slag notch (5); Flying dust outlet (6), it is characterized in that: the combustion chamber is provided with the burning plate (7) consistent with the combustion chamber width, and burning plate (7) is 10 °-40 ° with horizontal plane angle; Burn plate (7) combustion chamber (3) are divided into combustion chamber (8) and combustion-supporting chamber (9), charging aperture (4) is communicated with combustion chamber (8), charging aperture (4) be arranged on burning plate (7) high-end above; Slag notch (5) joins with burning plate (7) low side, and flying dust outlet (6) is communicated with combustion chamber (8); Also be provided with start-up burner (11) in the combustion chamber (8); Burning plate (7) is fluted body; Burn plate and have through hole (12), the upper shed (32) of through hole (12) is being burned on the plate surface, and under shed (33) is burning the plate bottom surface; Combustion-supporting chamber (9) is communicated with combustion chamber (8) through through hole (12), and the opening of under shed (33) is greater than upper shed (32); Combustion-supporting chamber (9) is provided with combustion adjuvant nozzle (15).
2. city garbage burning boiler according to claim 1; It is characterized in that: burn the plate both sides and be provided with oxygen therapy pipeline (13); Oxygen therapy pipeline (13) is provided with nozzle (14); Nozzle (14) is opened on and burns on the plate surface, and nozzle (14) tilts to burning plate (7) low side, and the angle b that forms with oxygen therapy pipeline (13) is 15 °-70 °.
3. city garbage burning boiler according to claim 2 is characterized in that: the through hole (12) that burning plate (7) has is for a plurality of, and through hole (12) upper shed (32) center and under shed (33) line of centres are 15 °-60 ° with burning plate (7) plane included angle c.
4. according to claim 1 or 2 or 3 described city garbage burning boilers, it is characterized in that: burn plate (7) and process by exotic material.
5. city garbage burning boiler according to claim 4 is characterized in that: slag notch (5) links to each other with conveying worm (16) sealing, and conveying worm (16) is from the horizontal by being obliquely installed conveying worm (16) and cross current.
6. city garbage burning boiler according to claim 5 is characterized in that: combustion chamber (8) water tank wall is provided with endothermic tube (34).
7. city garbage burning boiler according to claim 6 is characterized in that: flying dust outlet (6) is provided with heat dump (10).
8. city garbage burning boiler according to claim 7 is characterized in that: burning plate (7) is 25 ° with horizontal plane angle.
9. city garbage burning boiler according to claim 4; It is characterized in that: also comprise a drying device (19), comprise hothouse (20), said hothouse (20) top is provided with rubbish belt feeder (21); Be provided with drier (22) in the hothouse (20), the hothouse top is provided with air draft pipe (23); Drier (22) is made up of snake pipe, inlet end (24) and exhaust end (25); Hothouse base plate (26) becomes to be obliquely installed with horizontal plane, is connected with charging aperture (4); Be provided with rubbish vibrator (29) below the hothouse base plate (26); Said drying device (19) is higher than boiler body (1), is connected with charging aperture (4) sealing.
10. city garbage burning boiler according to claim 9 is characterized in that: drier (22) inlet end (24) is communicated with jet chimney (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101221811A CN102183025B (en) | 2011-05-10 | 2011-05-10 | Urban garbage incinerating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101221811A CN102183025B (en) | 2011-05-10 | 2011-05-10 | Urban garbage incinerating boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102183025A CN102183025A (en) | 2011-09-14 |
| CN102183025B true CN102183025B (en) | 2012-11-21 |
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ID=44569279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101221811A Expired - Fee Related CN102183025B (en) | 2011-05-10 | 2011-05-10 | Urban garbage incinerating boiler |
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| CN (1) | CN102183025B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705832B (en) * | 2012-05-11 | 2013-07-10 | 袁永扬 | Solid waste incinerator without emission of flue gas |
| CN104089278B (en) * | 2014-07-14 | 2016-09-14 | 张启凤 | Vertical long cylinder stove |
| CN104946308B (en) * | 2015-05-29 | 2017-08-01 | 李观德 | Refuse gasification accumulation of heat smokeless environment-friendly stove |
| CN106051778B (en) * | 2016-06-29 | 2018-01-02 | 张宝生 | Closed diversification environmental protection burning facility |
| CN108036326A (en) * | 2017-12-25 | 2018-05-15 | 珠海市建华锅炉机械工程有限公司 | A kind of wastes pre-processing system and its technique |
| CN108561886A (en) * | 2018-06-29 | 2018-09-21 | 许义保 | A kind of horizontal domestic waste incineration |
| CN108870409A (en) * | 2018-07-17 | 2018-11-23 | 芜湖芬特勘测服务有限公司 | A kind of municipal works waste incineration treatment apparatus |
| CN109028067A (en) * | 2018-08-02 | 2018-12-18 | 杨海滨 | Urban refuse burner |
| CN109708119B (en) * | 2019-03-01 | 2019-12-13 | 南京大学（溧水）生态环境研究院 | urban domestic garbage incineration device |
| CN111780123B (en) * | 2020-07-29 | 2021-06-04 | 浙江致远环境科技有限公司 | Energy-concerving and environment-protective type msw incineration system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2458752A1 (en) * | 1979-06-07 | 1981-01-02 | Heurtey Efflutherm | Refuse incinerator with sloping grate - has fuel and ignition connections above and below grate |
| CN2562082Y (en) * | 2002-08-08 | 2003-07-23 | 上海博士高环保设备工程有限公司 | Incinerator with uneven stepped grates |
| CN202040816U (en) * | 2011-05-10 | 2011-11-16 | 李凤山 | Municipal waste incineration boiler |
-
2011
- 2011-05-10 CN CN2011101221811A patent/CN102183025B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2458752A1 (en) * | 1979-06-07 | 1981-01-02 | Heurtey Efflutherm | Refuse incinerator with sloping grate - has fuel and ignition connections above and below grate |
| CN2562082Y (en) * | 2002-08-08 | 2003-07-23 | 上海博士高环保设备工程有限公司 | Incinerator with uneven stepped grates |
| CN202040816U (en) * | 2011-05-10 | 2011-11-16 | 李凤山 | Municipal waste incineration boiler |
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| CN102183025A (en) | 2011-09-14 |
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Granted publication date: 20121121 Termination date: 20180510 |