CN205191592U - Circulating fluidized bed domestic waste boiler of height position pipe laying - Google Patents
Circulating fluidized bed domestic waste boiler of height position pipe laying Download PDFInfo
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- CN205191592U CN205191592U CN201520956179.8U CN201520956179U CN205191592U CN 205191592 U CN205191592 U CN 205191592U CN 201520956179 U CN201520956179 U CN 201520956179U CN 205191592 U CN205191592 U CN 205191592U
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- burner hearth
- pipe laying
- furnace
- distribution plate
- air distribution
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- 239000010791 domestic waste Substances 0.000 title abstract description 3
- 238000009826 distribution Methods 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 37
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 239000003500 flue dust Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract 1
- 210000003954 umbilical cord Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 239000006004 Quartz sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model provides a circulating fluidized bed domestic waste boiler of height position pipe laying, includes furnace body, furnace, steam pocket, separator, over heater, economizer, air distribution plate, hood, isobaric bellows and feed inlet, the furnace of air distribution plate top has set up 800mm - 1000mm's vertical section, the furnace effective volume design 6.5 cubes of / ton vapour with, the furnace hot side that receives all around covers with the pouring material 80% or more, sets up the high -order pipe laying of some in furnace, the pitch of hood is below 70mm, furnace lower part cross -section is greatly in addition, the upper portion cross -section is little. The utility model discloses steady in a long -termly moving of the high -order pipe laying of umbilical cord, dioxin and nitrogen oxide's original emission is superior to the emission standard of european union, need not to carry on the afterbody and handles, and more importantly unburned carbon in flue dust is within 3%, and harmful components such as the dioxin that contains in the flying dust are little, easily handle, and burning behavior and feature of environmental protection ability are remarkable.
Description
Technical field
The utility model belongs to technical field of combustion equipment, is specifically related to a kind of circulating sulfuration bed domestic garbage boiler with high-order pipe laying.
Background technology
Domesticly at present mainly contain fluidized bed incinerator, mechanical kiln grate furnace, refuse incinerator of circulating fluid bed for the domestic waste incineration type of furnace.
1, mechanical kiln grate furnace: operation principle: adopt layer combustion technology, rubbish enters the fire grate under being tilted to by feed hopper, fire grate is divided into dry section, combustion zone, burning-out zone, due to the crisscross motion between fire grate, is promoted downwards by rubbish, make rubbish successively by the regional on fire grate, when rubbish enters into another district by a district, play an effect of standing up greatly, rubbish catches fire on fire grate, the radiation of heat from top and the convection current of flue gas, and the inside of waste layer.The rubbish that fire grate has caught fire, by the special role of fire grate, makes strong the stirring and stirring of waste layer, causes the burning bottom rubbish.Continuous print stirs and stirs, and also make waste layer loosen, gas permeability is strengthened, and is conducive to the burning of rubbish and burns.Feature: the material of fire grate require and requirement on machining accuracy high, require that quite smooth, between row and row the gap of the contact surface between fire grate and fire grate is quite little.Do not need to carry out pretreatment to rubbish.Technical comparing is ripe, and domestic and international application is more extensive.But this type of furnace complicated in mechanical structure, spoilage is high, and maintenance is large.Grate furnace cost and maintenance cost high.China's rubbish does not have strict classification, and in rubbish, moisture content is higher, complicated component, and calorific value is low, is difficult to waste incineration thorough, and in-furnace temperature is difficult to improve, and therefore causes the possibility of secondary pollution large.Mechanical kiln grate furnace adopts layer combustion technology, and have the pre-processing requirements of rubbish not high, to refuse thermal value wide accommodation, its separate unit maximum processing capability can reach 1200t/d, and technology maturation is reliable, but fault rate is higher on the key equipments such as fire grate.Because its cost, operation and maintenance cost are high, need to add combustion-supporting fuel under underload, meanwhile, manufacture complicated, volume is large, and floor space is many, is thus not suitable for the occasion that Small Urban garbage treatment quantity is little, make its interiorly and in, small city application is restricted.Grate furnace does not need to carry out pretreatment to rubbish, only large-sized rubbish need be chosen; And it is stable, but grate furnace discharge is high, the raw emissions of usual dioxin marks more than cubic meter at 1NG-TEQ/, the raw emissions of nitrogen oxide is more than 500mmg/ cube, far above higher than discharging standards, the more important thing is that unburned carbon in flue dust is more than 25%, the oxious components such as the dioxin contained in flying dust are higher, more be difficult to process, as the useless process of danger.
2, CFBB: operation principle: body of heater is made up of multihole distributor, combustion system is by burner hearth, high temperature cyclone separator, material returning device three part forms, adopt external heat exchanger, air distribution plate and super large rubbish slag-drip opening, bed material is slag or quartz sand, amount of stored heat is large, when burning away the refuse, several quartz sand (or ashes) decupling quantity of refuse is adopted to heat garbage fuel as bed material (heat carrier), rubbish and bed material are all in fluidized state, contact between them, blending and heat exchange are all very strong, the instantaneous rubbish getting final product dry high water content, and within several seconds, it is ignited, make its smooth combustion until burn completely.CFBB is easy to operate, stable, and fuel efficiency is high, and load regulation range is wide, and pollutant emission is low, and calorific intensity is high, is applicable to using the advantages such as low calorie fuels.Fluidized bed combustion is abundant, and stove combustion controls better, is thus applicable to the house refuse of burning low heat value, high moisture content, does not fire share (i.e. slag clinker ignition loss) < 2% in its residue.Thus the rapid heat cycle phenomenon of bed is avoided, flameholding.The drying of rubbish, catch fire, burn and almost carry out simultaneously, without the need to the adjustment of complexity, realize Load Regulation by changing fuel quantity, air quantity, a Secondary Air ratio and external heat exchanger caloric receptivity, Combustion System is easy, easily is automated and continuous burning.But in flue gas, amount of dust is comparatively large, and higher to fuel granularity uniformity requirement, need to establish rubbish pretreatment line, quartz sand has certain wearing and tearing to equipment.Fluid bed furnace combustion technology be this century early sixties obtain a kind of Novel clean combustion technology of developing rapidly.The many rubbish of this technique burning more complicated, moisture also can be thorough incineration firing, and temperature is also higher, invests also lower.
But current CFBB because of in rubbish containing glass, easily blocking blast cap aperture, more difficult flying marking up to more than 15%, cause back-end surfaces dust stratification, frequent blowing out affects stable operation
Although current recirculating fluidized bed garbage fired boiler discharge is lower than grate furnace, the raw emissions of usual dioxin marks more than cubic meter at 0.5NG-TEQ/, the raw emissions of nitrogen oxide is more than 300mmg/ cube, therefore, still higher than discharging standards, the more important thing is unburned carbon in flue dust still more than 15%, the oxious components such as the dioxin contained in flying dust are higher, more be difficult to process, as the useless process of danger.
Utility model content
Technical problem to be solved in the utility model is: solve above-mentioned prior art Problems existing, and a kind of circulating sulfuration bed domestic garbage boiler with high-order pipe laying is provided, make steady in a long-termly running of the high-order pipe laying of band, the raw emissions of dioxin and nitrogen oxide is better than European Union Emission standard, without the need to carrying out afterbody process, the more important thing is that unburned carbon in flue dust is within 3%, the harmful components such as the dioxin contained in flying dust are little, be easy to process, combustibility and environmental-protecting performance brilliance.
The technical solution adopted in the utility model is:
A kind of circulating sulfuration bed domestic garbage boiler with high-order pipe laying, comprise body of heater, burner hearth, drum, separator, superheater, economizer, air distribution plate, blast cap, isobaric bellows and charging aperture, separator, superheater and economizer are distributed in burner hearth side, and burner hearth, separator, superheater and economizer connect successively, drum is arranged on body of heater top, install burner hearth bottom at air distribution plate, blast cap and isobaric bellows, charging aperture is arranged on burner hearth side; Utility model feature of the present utility model is: the burner hearth above air distribution plate is provided with the vertical section of 800mm-1000mm, burner hearth dischargeable capacity design 6.5 cubes of/ton of vapour with, the heating surface more than 80% of burner hearth surrounding covers by castable, the high-order pipe laying of some is set up in burner hearth, the pitch of blast cap is at below 70mm, and lower furnace portion cross section is large, cross section, top is little.
In technique scheme, described burner hearth dischargeable capacity refers to more than blast cap small hole center line, below furnace outlet center line and the combustion space of temperature more than 850 degree, be defined as burner hearth dischargeable capacity.
In technique scheme, above the air distribution plate of described burner hearth vertical section, blast cap temperature controls below 700 DEG C;
Advantageous effect:
The circulating fluid bed domestic garbage boiler that the long-term stability of the high-order pipe laying of band of the present utility model is run makes the raw emissions of dioxin within 0.05NG-TEQ/ marks cubic meter, the raw emissions of nitrogen oxide at 200mmg/ cube with Inner, without the need to carrying out afterbody process, be better than European Union Emission standard.The more important thing is that unburned carbon in flue dust is within 3%, the oxious components such as the dioxin contained in flying dust seldom, be easy to process.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure, high-order pipe laying in 1-burner hearth, 2-blast cap, 3-blast cap small hole center line, the isobaric bellows of 4-, 5-charging aperture, 6-membrane tube, 7-castable, 8-drum, 9-furnace outlet center line, 10-separator, 11-superheater, 12-economizer.
Detailed description of the invention
See Fig. 1, the circulating fluid bed domestic garbage boiler of the high-order pipe laying of band of the present utility model can make the raw emissions of dioxin dislike the raw emissions of English within 0.05NG-TEQ/ marks cubic meter, the raw emissions of nitrogen oxide at 200mmg/ cube with Inner, without the need to carrying out afterbody process, be better than European Union Emission standard, unburned carbon in flue dust is within 3%, and the oxious components such as the dioxin contained in flying dust are little, is easy to process.This is owing to have employed following concrete improvement:
1, vertical section is not had above existing circulating fluid bed domestic garbage boiler grid plate, burner hearth air distribution plate of the present utility model serves a meal and has been fixedly installed the vertical section of 800mm-1000mm, above controlling air distribution plate, blast cap temperature is below 700 DEG C, make glass non-fusible in this interval, thus avoid blocking blast cap hole.
2, the burner hearth dischargeable capacity of existing circulating fluid bed domestic garbage boiler is below 4 cubes of/ton of vapour, and burner hearth of the present utility model is more than 6.5 cubes of/ton of vapour.Because dischargeable capacity is large, gas residence time is long, so unburned carbon in flue dust is within 3%, prevent the dust stratification of back-end surfaces, ensure that the stable operation of boiler.More than blast cap small hole center line, below furnace outlet center line and the combustion space of temperature more than 850 degree is defined as dischargeable capacity.
3, in order to homogenizing furnace bore temperature, the heating surface more than 80% of burner hearth surrounding is topped by castable, and castable is as fire clay, mortar etc., and flue gas effective time of staying has been grown in the court of a feudal ruler, reduce the discharge of dioxin, and the heating surface of original fluid bed burner hearth surrounding is all exposed.
4, the heating surface more than 80% due to burner hearth surrounding is topped by castable, in order to ensure boiler output, set up the high-order pipe laying of some in burner hearth, as 2-10, during pipe laying, heat transfer coefficient is more than 35 times of burner hearth surrounding heating surface heat transfer coefficient, so it is guaranteed for exerting oneself.
5, in order to make air fully mix with rubbish, reduce excess air coefficient, the pitch design of blast cap is below 70MM, the pitch of existing circulating fluid bed domestic garbage Wind cap for boiler is more than 100mm, thus the raw emissions of nitrogen oxide of the present utility model at 200mmg/ cube with Inner.
6, in order to the wearing and tearing of Fang Zhi Mi phase region and pipe laying, the section of burner hearth does not resemble regular circulation fluid bed house refuse boiler unanimous between the higher and lower levels, the utility model bottom section is large, flue gas flow rate is low, top section is little, and flue gas flow rate is high, can not only the wearing and tearing of Fang Zhi Mi phase region and pipe laying, and due to inner flue gas of the stove flow velocity inconsistent, strengthen the stirring of flue gas in stove, enhance heat and mass and burning, also reduce the raw emissions of nitrogen oxide and dioxin.
Claims (3)
1. the circulating fluid bed domestic garbage boiler with high-order pipe laying, comprise body of heater, burner hearth, drum, separator, superheater, economizer, air distribution plate, blast cap, isobaric bellows and charging aperture, separator, superheater and economizer are distributed in burner hearth side, and burner hearth, separator, superheater and economizer connect successively, drum is arranged on body of heater top, install burner hearth bottom at air distribution plate, blast cap and isobaric bellows, charging aperture is arranged on burner hearth side; It is characterized in that: the burner hearth above air distribution plate is provided with the vertical section of 800mm-1000mm, burner hearth dischargeable capacity design 6.5 cubes of/ton of vapour with, the heating surface more than 80% of burner hearth surrounding covers by castable, the high-order pipe laying of some is set up in burner hearth, the pitch of blast cap is at below 70mm, and lower furnace portion cross section is large, cross section, top is little.
2. the circulating fluid bed domestic garbage boiler of the high-order pipe laying of band according to claim 1, it is characterized in that, described burner hearth dischargeable capacity refers to more than blast cap small hole center line, below furnace outlet center line and the combustion space of temperature more than 850 degree, be defined as burner hearth dischargeable capacity.
3. the circulating fluid bed domestic garbage boiler of the high-order pipe laying of band according to claim 1, is characterized in that, above the air distribution plate of described burner hearth vertical section, blast cap temperature controls below 700 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956179.8U CN205191592U (en) | 2015-11-26 | 2015-11-26 | Circulating fluidized bed domestic waste boiler of height position pipe laying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956179.8U CN205191592U (en) | 2015-11-26 | 2015-11-26 | Circulating fluidized bed domestic waste boiler of height position pipe laying |
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| Publication Number | Publication Date |
|---|---|
| CN205191592U true CN205191592U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956179.8U Active CN205191592U (en) | 2015-11-26 | 2015-11-26 | Circulating fluidized bed domestic waste boiler of height position pipe laying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299656A (en) * | 2015-11-26 | 2016-02-03 | 何相助 | Circulating fluidized bed household refuse boiler with high-position laying pipes and combustion method for circulating fluidized bed household refuse boiler |
| CN114321942A (en) * | 2021-12-29 | 2022-04-12 | 上海市政工程设计研究总院（集团）有限公司 | Incinerator |
-
2015
- 2015-11-26 CN CN201520956179.8U patent/CN205191592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299656A (en) * | 2015-11-26 | 2016-02-03 | 何相助 | Circulating fluidized bed household refuse boiler with high-position laying pipes and combustion method for circulating fluidized bed household refuse boiler |
| CN114321942A (en) * | 2021-12-29 | 2022-04-12 | 上海市政工程设计研究总院（集团）有限公司 | Incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161012 Address after: 610043, No. three, 72 section, Wuhou Road, Chengdu, Sichuan, Wuhou District Patentee after: Sichuan alive boiler energy saving environmental protection Co Ltd Address before: 410000 Hua Jingyuan, 1 movements, 918 rooms, 242 South Shaoshan Road, Tianxin District, Hunan, Changsha Patentee before: He Xiangzhu |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: 610041 Jule Road, West Section 1, 1st ring road, Wuhou District, Chengdu City, Sichuan Province Patentee after: Sichuan Yitong Nengda Environmental Protection Technology Co.,Ltd. Address before: No.72, Sanhe section, Wuhou Avenue, Wuhou District, Chengdu, Sichuan 610043 Patentee before: HUCHUANG ENERGY MANAGEMENT (SICHUAN) Co.,Ltd. |
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| TR01 | Transfer of patent right |