CN103411211B - It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste - Google Patents
It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste Download PDFInfo
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- CN103411211B CN103411211B CN201310386415.2A CN201310386415A CN103411211B CN 103411211 B CN103411211 B CN 103411211B CN 201310386415 A CN201310386415 A CN 201310386415A CN 103411211 B CN103411211 B CN 103411211B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The present invention relates to a kind of applicable biomass and the fluidized bed gasification combustion boiler of dangerous solid waste, including feeder, main furnace body, gas high-temperature combustor, feeder is connected with main furnace body, the top of main furnace body is connected with one-level gas-solid separator, the bottom of one-level gas-solid separator is connected with the bottom of main furnace body by returning charge valve, the top of one-level gas-solid separator is connected with two grades of gas-solid separators, the bottom of two grades of gas-solid separators connects ash silo, the top of two grades of gas-solid separators is connected with the entrance of gas high-temperature combustor, the outlet of gas high-temperature combustor passes sequentially through economizer, air preheater is connected with back-end ductwork.The present invention uses recirculating fluidized bed gasification to fire fabricated structure again with high-temperature fuel gas, it is suitable for biomass and the process of dangerous solid waste and recovery energy, the removal of flying dust avoids coking and the corrosion of combustion process, burning is more cleaned, ignition temperature is up to more than 1300 DEG C, making dangerous solid waste decompose completely, energy utilization efficiency reaches more than 80%.
Description
Technical field
The present invention relates to a kind of fluidized bed gasification combustion boiler, be specifically related to a kind of applicable biomass and the fluid bed gas of dangerous solid waste
Change burning boiler.
Background technology
China's biomass combustion still uses for reference fire coal circulating fluid bed boiler technology at present, along with national environmental standard is increasingly stricter,
Gasification of biomass produces fuel gas buring becomes the emerging technology of a kind of environmental protection.Fuel gas buring cleans very much, but what gasification produced
Tar separates out in washing, purifying temperature-fall period, and water is caused secondary pollution, becomes the bottleneck of biomass energy clean utilization.Simultaneously
For the process of dangerous solid waste, national Specification must stop 2 seconds more than 1100 DEG C, and common ciculation fluidized
The ignition temperature of bed boiler or incinerator is between 700～900 DEG C, does not reaches the temperature of national regulation, therefore solid for danger
Body garbage, can only use more inefficient rotating cylinder incinerator, and efficiency of combustion fluid bed higher with capacity usage ratio cannot utilize,
Cause the waste of ample resources and the energy, be therefore badly in need of being suitable for biomass and the cleaning burning process of dangerous solid waste and technology.
Summary of the invention
It is an object of the invention to provide a kind of combustion cleaning, applicable biomass that energy utilization efficiency is high and the fluidisation of dangerous solid waste
Bed gasification fired boiler.
The technical solution adopted for the present invention to solve the technical problems is: be suitable for biomass and the fluidized bed gasification combustion of dangerous solid waste
Boiler, including feeder, main furnace body, gas high-temperature combustor, returning charge valve, drum, ash silo, back-end ductwork, described charging
Device is connected with the middle part of main furnace body, and the top of described main furnace body is connected with one-level gas-solid separator, described one-level gas-solid separator
Bottom is connected with the bottom of main furnace body by returning charge valve, and the top of described one-level gas-solid separator is connected with two grades of gas-solid separators,
The bottom of described two grades of gas-solid separators connects has ash silo, the top of described two grades of gas-solid separators to enter with gas high-temperature combustor
Mouth connects, and the outlet of described gas high-temperature combustor passes sequentially through economizer, air preheater is connected with back-end ductwork.
Specifically, described feeder is provided with feeding packing auger with the connecting portion of main furnace body.
Specifically, described feeding packing auger is for becoming helical design.
Specifically, the fuel gas inlet of described gas high-temperature combustor is provided with fire-resistant heat storage and flame stabilization wall.
Specifically, described gas high-temperature combustor is horizontally disposed with.
Specifically, described drum is positioned at gas high-temperature combustor top.
The method have the advantages that the fluidized bed gasification combustion boiler of the present invention uses recirculating fluidized bed gasification to fire with high temperature
Gas fires fabricated structure again, is suitable for biomass and the process of dangerous solid waste and recovery energy, and the removal of flying dust avoids burned
The coking of journey and corrosion, burn and more clean, and ignition temperature reaches as high as more than 1300 DEG C, makes dangerous solid waste decompose completely, energy
Amount utilization ratio reaches more than 80%, is more than 2 times of common incinerator and waste heat boiler combination.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure, 1, feeder, 2, main furnace body, 3, one-level gas-solid separator, 4, two grades of gas-solid separators, 5, fire-resistant accumulation of heat
Surely fire wall, 6, gas high-temperature combustor, 7, drum, 8, economizer, 9, air preheater, 10, feeding packing auger, 11,
Returning charge valve, 12, ash silo, 13, back-end ductwork.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in detail
As it is shown in figure 1, be suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste, including feeder 1, main furnace body 2,
Gas high-temperature combustor 6, drum 7, returning charge valve 11, ash silo 12, back-end ductwork 13, described feeder 1 and main furnace body 2
Middle part connects, and the top of described main furnace body 2 is connected with one-level gas-solid separator 3, and the bottom of described one-level gas-solid separator 3 leads to
Crossing returning charge valve 11 to be connected with the bottom of main furnace body 2, the top of described one-level gas-solid separator 3 is connected with two grades of gas-solid separators 4,
The bottom of described two grades of gas-solid separators 4 connects ash silo 12, burns with gas high-temperature in the top of described two grades of gas-solid separators 4
The entrance of room 6 connects, and the outlet of described gas high-temperature combustor 6 passes sequentially through economizer 8, air preheater 9 and afterbody cigarette
Road 13 connects.
Specifically, described feeder 1 is provided with feeding packing auger 10 with the connecting portion of main furnace body 2.
Specifically, described feeding packing auger 10 is for becoming helical design.
Specifically, the fuel gas inlet of described gas high-temperature combustor 6 is provided with fire-resistant heat storage and flame stabilization wall 5.
Specifically, described gas high-temperature combustor 6 is horizontally disposed with.
Specifically, described drum 7 is positioned at gas high-temperature combustor 6 top.
Biomass material or dangerous solid waste after pulverizing enter gasification furnace main furnace body by feeder, heat in high temperature bed
And the combustion-supporting lower pyrolysis (in bed, temperature controls at 800～900 DEG C) of air or water vapour, the combustion gas of output and semicoke
(800～900 DEG C) enter one-level gas-solid separator through gasification furnace outlet, after most of bed device separated with semicoke separates,
Return to carry out bottom gasification furnace burning and the gasification of next round after falling into returning charge valve.Combustion gas containing flying dust divides through two grades of gas-solids
After device, most flying dusts are captured and fall into ash silo, transport outward as fertilizer or the combustion gas (700～900 DEG C) of landfill cleaning after cooling
Containing gaseous state tar, entering gas high-temperature combustor, fire-resistant heat storage and flame stabilization wall is arranged in combustor import, uses high-temperature refractory,
Have the effect of the steady combustion of auxiliary to combustion gas, Inner Wall of Combustion Chamber arranges water-cooling wall, for absorbing the heat of fuel gas buring release, with jet
Form provides the air needed for high-temperature fuel gas, and ignition temperature can reach more than 1300 DEG C, and biomass gaseous state is burnt at this temperature
Oil burns completely, and for danger of combustion solid waste, its harmful substance stops more than 2 seconds at this temperature, complete pyrolytic；By
It is substantially eliminated in flying dust, water-cooling wall will not be produced during this high-temp combustion and stain and corrosion；The flue gas produced after burning
After economizer and air preheater enter back-end ductwork, purified after enter air.
The present invention is not limited to above-mentioned embodiment, and anyone should learn the structure change made under the enlightenment of the present invention, every
With the present invention, there is same or like technical scheme, within each falling within protection scope of the present invention.
Technology that the present invention does not describes in detail, shape, structure part are known technology.
Claims (4)
1. it is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste, including feeder (1), main furnace body (2), combustion gas height
Temperature combustor (6), returning charge valve (11), drum (7), ash silo (12), back-end ductwork (13), it is characterised in that described feeder (1)
Being connected with the middle part of main furnace body (2), the top of described main furnace body (2) is connected with one-level gas-solid separator (3), described one-level gas solid separation
The bottom of device (3) is connected with the bottom of main furnace body (2) by returning charge valve (11), the top of described one-level gas-solid separator (3) and two grades of gas
Solid separator (4) connects, and the bottom of described two grades of gas-solid separators (4) connects ash silo (12), described two grades of gas-solid separators (4)
Top is connected with the entrance of gas high-temperature combustor (6), and the outlet of described gas high-temperature combustor (6) passes sequentially through economizer (8), sky
Air preheater (9) is connected with back-end ductwork (13)；Described drum (7) is positioned at gas high-temperature combustor (6) top；Described gas high-temperature
The fuel gas inlet of combustor (6) is provided with fire-resistant heat storage and flame stabilization wall (5)；Described gas high-temperature combustor (6) arranges water-cooling wall, is used for absorbing
The heat of fuel gas buring release, ignition temperature is up to more than 1300 DEG C.
It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste the most according to claim 1, it is characterised in that institute
The connecting portion stating feeder (1) and main furnace body (2) is provided with feeding packing auger (10).
It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste the most according to claim 2, it is characterised in that institute
State feeding packing auger (10) for becoming helical design.
It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste the most according to claim 1, it is characterised in that institute
State gas high-temperature combustor (6) to be horizontally disposed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386415.2A CN103411211B (en) | 2013-08-30 | 2013-08-30 | It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386415.2A CN103411211B (en) | 2013-08-30 | 2013-08-30 | It is suitable for biomass and the fluidized bed gasification combustion boiler of dangerous solid waste |
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| Publication Number | Publication Date |
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| CN103411211A CN103411211A (en) | 2013-11-27 |
| CN103411211B true CN103411211B (en) | 2016-10-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725329A (en) * | 2013-12-24 | 2014-04-16 | 山东百川同创能源有限公司 | Low-tar pyrolytic device in dual bed structure and pyrolytic method |
| CN104263418A (en) * | 2014-10-14 | 2015-01-07 | 东南大学 | Comprehensive utilization device for inferior coal, biomass and solid waste and working method |
| CN107990322A (en) * | 2017-12-28 | 2018-05-04 | 华西能源工业股份有限公司 | A kind of waste incineration CFB boiler of cyclone separator and membrane type separation apparatuses in series |
| CN114440221A (en) * | 2022-01-19 | 2022-05-06 | 北京一亚高科能源科技有限公司 | TFB gasification incinerator with two-stage separation and gasification incineration method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4102959A1 (en) * | 1991-02-01 | 1992-08-13 | Metallgesellschaft Ag | METHOD FOR BURNING COAL IN THE CIRCULATING FLUID BED |
| DE4232684A1 (en) * | 1992-09-29 | 1994-03-31 | Siemens Ag | Method of transportation and transportation device |
| FR2735560B1 (en) * | 1995-06-16 | 1997-07-11 | Gec Alsthom Stein Ind | METHOD AND DEVICE FOR REDUCING THE EMISSIONS OF POLLUTANTS IN THE SMOKE OF A FLUIDIZED BED HEATER BY STAGING FUEL INJECTIONS |
| JPH10253011A (en) * | 1997-03-13 | 1998-09-25 | Hitachi Zosen Corp | Combustion apparatus |
| CN203464261U (en) * | 2013-08-30 | 2014-03-05 | 厦门中科城环新能源有限公司 | Fluidized-bed gasifying combustion boiler suitable for biomasses and dangerous solid wastes |
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