CN103411211A - Fluidized-bed gasifying combustion boiler suitable for biomass and dangerous solid wastes - Google Patents
Fluidized-bed gasifying combustion boiler suitable for biomass and dangerous solid wastes Download PDFInfo
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- CN103411211A CN103411211A CN2013103864152A CN201310386415A CN103411211A CN 103411211 A CN103411211 A CN 103411211A CN 2013103864152 A CN2013103864152 A CN 2013103864152A CN 201310386415 A CN201310386415 A CN 201310386415A CN 103411211 A CN103411211 A CN 103411211A
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- gas
- furnace body
- solid separator
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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 invention relates to a fluidized-bed gasifying combustion boiler suitable for biomass and dangerous solid wastes. The fluidized-bed gasifying combustion boiler comprises a feeder, a main furnace body and a high-temperature gas combustion chamber, wherein the feeder is connected with the main furnace body; the top of the main furnace body is connected with a primary gas-solid separator; the bottom of the primary gas-solid separator is connected with the lower part of the main furnace body through a material returning valve; the top of the primary gas-solid separator is connected with a secondary gas-solid separator; the bottom of the secondary gas-solid separator is connected with an ash bin; the top of the secondary gas-solid separator is connected with the inlet of the high-temperature gas combustion chamber; the outlet of the high-temperature gas combustion chamber is connected with a back-end flue orderly through an economizer and an air preheater. The fluidized-bed gasifying combustion boiler is suitable for treating and recycling the biomass and the dangerous solid wastes with a combined structure of circulating fluidized bed gasification and high-temperature gas re-burning; as ash is removed, coking and corrosion in the combustion process are avoided and the combustion is cleaner; the temperature of combustion can be more than 1300 DEG C so that the dangerous solid wastes can be decomposed sufficiently; the energy utilization efficiency is more than 80%.
Description
Technical field
The present invention relates to a kind of fluidized bed gasification combustion boiler, be specifically related to the fluidized bed gasification combustion boiler of a kind of applicable living beings and dangerous solid waste.
Background technology
China's biomass combustion is still used for reference fire coal circulating fluid bed boiler technology at present, and along with national environmental standard is more and more stricter, gasification of biomass produces the emerging technology that fuel gas buring becomes a kind of environmental protection.Fuel gas buring is very clean, but the tar that gasification produces separates out in the washing, purifying temperature-fall period, and water is caused to secondary pollution, becomes the bottleneck of biomass energy clean utilization.While is for the processing of dangerous solid waste, national Specification must stop 2 seconds more than 1100 ℃, and the ignition temperature of common CFBB or incinerator is between 700～900 ℃, do not reach the temperature of national regulation, therefore for dangerous solid waste, can only adopt more inefficient rotating cylinder incinerator, the fluid bed that efficiency of combustion and capacity usage ratio are higher can't utilize, cause the waste of ample resources and the energy, therefore be badly in need of being applicable to the clean burning process technologies of living beings and dangerous solid waste.
Summary of the invention
The object of the present invention is to provide a kind of combustion cleaning, the applicable living beings that energy utilization efficiency is high and the fluidized bed gasification combustion boiler of dangerous solid waste.
The technical solution adopted for the present invention to solve the technical problems is: the fluidized bed gasification combustion boiler that is applicable to living beings and dangerous solid waste, comprise feeder, main furnace body, the gas high-temperature combustion chamber, the returning charge valve, drum, ash silo, back-end ductwork, described feeder is connected with the middle part of main furnace body, the top of described main furnace body is connected with the one-level gas-solid separator, the bottom of described one-level gas-solid separator is connected with the bottom of main furnace body by the returning charge valve, the top of described one-level gas-solid separator is connected with the secondary gas-solid separator, the bottom of described secondary gas-solid separator is connected with ash silo, the top of described secondary gas-solid separator is connected with the entrance of gas high-temperature combustion chamber, economizer is passed through in the outlet of described gas high-temperature combustion chamber successively, air preheater is connected with back-end ductwork.
Particularly, the connecting portion of described feeder and main furnace body is provided with feeding packing auger.
Particularly, described feeding packing auger is for becoming helical design.
Particularly, the fuel gas inlet of described gas high-temperature combustion chamber is provided with fire-resistant heat storage and flame stabilization wall.
Particularly, described gas high-temperature combustion chamber is horizontally disposed with.
Particularly, described drum is positioned at top, gas high-temperature combustion chamber.
The present invention has following beneficial effect: fluidized bed gasification combustion boiler of the present invention adopts the recirculating fluidized bed gasification to fire fabricated structure with high-temperature fuel gas again, the processing and the recovery energy that are applicable to living beings and dangerous solid waste, coking and the corrosion of combustion process avoided in the removal of flying dust, burn more clean, ignition temperature reaches as high as more than 1300 ℃, dangerous solid waste is decomposed fully, and energy utilization efficiency reaches more than 80%, is common incinerator and more than 2 times of waste heat boiler combination.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1, feeder, 2, main furnace body, 3, the one-level gas-solid separator, 4, the secondary gas-solid separator, 5, fire-resistant heat storage and flame stabilization wall, 6, the gas high-temperature combustion chamber, 7, drum, 8, economizer, 9, air preheater, 10, feeding packing auger, 11, the returning charge valve, 12, ash silo, 13, back-end ductwork.
The specific embodiment
The present invention is described in detail below in conjunction with the specific embodiment
As shown in Figure 1, the fluidized bed gasification combustion boiler that is applicable to living beings and dangerous solid waste, comprise feeder 1, main furnace body 2, gas high-temperature combustion chamber 6, drum 7, returning charge valve 11, ash silo 12, back-end ductwork 13, described feeder 1 is 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, the bottom of described one-level gas-solid separator 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 is connected with secondary gas-solid separator 4, the bottom of described secondary gas-solid separator 4 is connected with ash silo 12, the top of described secondary gas-solid separator 4 is connected with the entrance of gas high-temperature combustion chamber 6, the outlet of described gas high-temperature combustion chamber 6 is successively by economizer 8, air preheater 9 is connected with back-end ductwork 13.
Particularly, described feeder 1 is provided with feeding packing auger 10 with the connecting portion of main furnace body 2.
Particularly, described feeding packing auger 10 is for becoming helical design.
Particularly, the fuel gas inlet of described gas high-temperature combustion chamber 6 is provided with fire-resistant heat storage and flame stabilization wall 5.
Particularly, described gas high-temperature combustion chamber 6 is horizontally disposed with.
Particularly, described drum 7 is positioned at 6 tops, gas high-temperature combustion chamber.
Biomass material after pulverizing or dangerous solid waste enter the gasification furnace main furnace body by feeder, combustion-supporting lower pyrolysis (in bed, temperature is controlled at 800～900 ℃) at the heating of high hotbed material and air or water vapour, the combustion gas of output and semicoke (800～900 ℃) enter the one-level gas-solid separator through the gasification furnace outlet, most bed material, falls into after the returning charge valve and returns to bottom gasification furnace burning and the gasification of carrying out next round with semicoke after separator separates.Contain the combustion gas of flying dust after the secondary gas-solid separator, most flying dusts are captured and fall into ash silo, the clean combustion gas (700～900 ℃) of cooling rear outward transport as fertilizer sources or landfill contains gaseous state tar, enter the gas high-temperature combustion chamber, fire-resistant heat storage and flame stabilization wall is arranged in the combustion chamber import, adopt high-temperature refractory, combustion gas is had to the effect of auxiliary steady combustion, Inner Wall of Combustion Chamber is arranged water-cooling wall, the heat discharged for absorbing fuel gas buring, with pattern, provide high-temperature fuel gas required air, ignition temperature can reach more than 1300 ℃, living beings gaseous state tar completing combustion at this temperature, for the danger of combustion solid waste, its harmful substance is stopping more than 2 seconds at this temperature, complete pyrolytic, because flying dust is removed substantially, can not produce and stain and corrosion water-cooling wall in this high-temp combustion process, the flue gas produced after burning enters back-end ductwork after economizer and air preheater, enter atmosphere after purifying.
The present invention is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
The technology that the present invention does not describe in detail, shape, structure partly are known technology.
Claims (6)
1. be applicable to the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, comprise feeder (1), main furnace body (2), gas high-temperature combustion chamber (6), returning charge valve (11), drum (7), ash silo (12), back-end ductwork (13), it is characterized in that, described feeder (1) is 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), the bottom of described one-level gas-solid separator (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) is connected with secondary gas-solid separator (4), the bottom of described secondary gas-solid separator (4) is connected with ash silo (12), the top of described secondary gas-solid separator (4) is connected with the entrance of gas high-temperature combustion chamber (6), the outlet of described gas high-temperature combustion chamber (6) is successively by economizer (8), air preheater (9) is connected with back-end ductwork (13).
2. be applicable to according to claim 1 the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, it is characterized in that, described feeder (1) is provided with feeding packing auger (10) with the connecting portion of main furnace body (2).
3. be applicable to according to claim 2 the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, it is characterized in that, described feeding packing auger (10) is for becoming helical design.
4. be applicable to according to claim 1 the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, it is characterized in that, the fuel gas inlet of described gas high-temperature combustion chamber (6) is provided with fire-resistant heat storage and flame stabilization wall (5).
5. be applicable to according to claim 1 the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, it is characterized in that, described gas high-temperature combustion chamber (6) is horizontally disposed with.
6. be applicable to according to claim 1 the fluidized bed gasification combustion boiler of living beings and dangerous solid waste, it is characterized in that, described drum (7) is positioned at top, gas high-temperature combustion chamber (6).
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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| CN103411211A true CN103411211A (en) | 2013-11-27 |
| CN103411211B CN103411211B (en) | 2016-10-19 |
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Cited By (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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159886A (en) * | 1991-02-01 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Process of combusting coal in a circulating fluidized bed |
| CN1086785A (en) * | 1992-09-29 | 1994-05-18 | 西门子公司 | Load transfer device |
| CN1159563A (en) * | 1995-06-16 | 1997-09-17 | Gec阿尔松·斯坦工业公司 | Method and device for reducing pollutant in smoke of fluidized-bed heating system |
| WO1998040672A1 (en) * | 1997-03-13 | 1998-09-17 | Hitachi Zosen Corporation | Combustion device |
| 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 |
-
2013
- 2013-08-30 CN CN201310386415.2A patent/CN103411211B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159886A (en) * | 1991-02-01 | 1992-11-03 | Metallgesellschaft Aktiengesellschaft | Process of combusting coal in a circulating fluidized bed |
| CN1086785A (en) * | 1992-09-29 | 1994-05-18 | 西门子公司 | Load transfer device |
| CN1159563A (en) * | 1995-06-16 | 1997-09-17 | Gec阿尔松·斯坦工业公司 | Method and device for reducing pollutant in smoke of fluidized-bed heating system |
| WO1998040672A1 (en) * | 1997-03-13 | 1998-09-17 | Hitachi Zosen Corporation | Combustion device |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN103411211B (en) | 2016-10-19 |
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