CN205893175U - Garbage gasification furnace - Google Patents
Garbage gasification furnace Download PDFInfo
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- CN205893175U CN205893175U CN201620835270.9U CN201620835270U CN205893175U CN 205893175 U CN205893175 U CN 205893175U CN 201620835270 U CN201620835270 U CN 201620835270U CN 205893175 U CN205893175 U CN 205893175U
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- gasification
- fuel gas
- slag
- furnace
- gasification furnace
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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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Abstract
The utility model discloses a garbage gasification furnace, it is higher to raw materials rubbish selectivity to have solved current garbage gasification furnace, and the problem that gasification efficiency is low, the energy consumption is high. Technical scheme includes the furnace body, the furnace body top is established and is slightly closed the export of thick synthetic gas, the bottom is equipped with the slag export, the upper portion of furnace body is equipped with the fuel gas nozzle, and well lower part is equipped with the import of raw materials rubbish, and the lower part is equipped with the gasification agent interface, and the top of bottom slag export also is equipped with the fuel gas nozzle, the slag export is connected with slag quench jar 2. The utility model discloses simple structure, gasification efficiency are high, the efficiency is high, manufacturing cost and running cost hang down, are applicable to and handle various different raw materials rubbish, and energy -concerving and environment -protective.
Description
Technical field
This utility model is related to a kind of gasification furnace, specifically a kind of refuse gasification boiler.
Background technology
Refuse gasification technology is a kind of garbage disposal new technique developed in recent years, and general garbage incineration technology
Organic substance in rubbish, using refuse gasification technical finesse rubbish, almost can be gasified totally and change into co and h by difference2
Based on synthesis gas, and inorganic matters then become harmless vitreous body slag, it is possible to achieve nearly the zero of garbage processing procedure pollutant
Discharge.
Knowable to the retrospect analysis from documents consulted at present, existing refuse gasification technology is broadly divided into three major types: a class is
It is that also a class is using plasma technology using gasification and melting incineration technology using pyrolyzing, gasifying and incinerating technology, a class.Adopt
First rubbish is pyrolyzed in the state of anoxia or anaerobic with pyrolyzing, gasifying and incinerating technology, the pyrolysis gas that pyrolysis produces are often
Need to carry out two English and the furan of further combustive destruction generation by configuring dual firing chamber, pyrolysis gas become cigarette after burning
Gas is it is impossible to further with and the lime-ash of bottom, due to burning not exclusively, also needs to process further；And burnt using gasification and melting
Burning technology, due to the longer horizontal slag passage of gasification furnace bottom setting, the inorganic matters in rubbish are at up to 1600～2000 DEG C
Slag passage in fully melted, along horizontal channel flowing and homogenizing layering, the metal in slag is reduced to simple substance shape to slag
State exists, and because its density is big, sinks to the lower floor of melt flow stream, and other lightweight slags then float over upper strata, after Quench
The separation of metal and slag can be realized, thus realizing reclaiming the metal in rubbish, but the method is by needing high temperature melt institute
Some rubbish, and realize being kept completely separate of metal and slag, needs to consume substantial amounts of additional natural gas, high energy consumption, simultaneously to entering
Stove refuse thermal value requires higher；Using plasma gasification technology, the high temperature high energy due to using plasmatorch to produce comes
Melt and gasification rubbish, need also exist for consuming substantial amounts of electric energy, high energy consumption, simultaneously because the plasmatorch life-span is shorter, need through
Often change and safeguard, in addition to making running cost higher, also cannot realize long period continuous and steady operation.
Further, since rubbish species is various, mainly there is municipal refuse (such as food waste, paper, plastics, fabric, tire, waste and old
Household electrical appliances, bamboo and wood and greening garbage etc.) and industrial refuse (as general industry rubbish such as blast furnace slag, non-ferrous metal slag, flyash and
The hazardous solid wastes such as industrial sludge, pharmaceutical factory's residue, pesticide), its moisture content, calorific value, size etc. are each different, exist
Larger difference, above-mentioned three kinds of refuse gasification boilers are limited by its technical characterstic and outside consumption, generally can only process moisture and ash
Divide the rubbish relatively low, calorific value is higher, all there are certain adaptability and selective problems to handled raw material rubbish.
Content of the invention
The purpose of this utility model is to solve above-mentioned technical problem, provides that a kind of structure is simple, gasification efficiency is high, energy
Effect is high, production cost and operating cost are low, be applied to the various different material rubbish of process, and resource effect is good, energy-conserving and environment-protective
Refuse gasification boiler.
Technical scheme includes body of heater, and described body of heater top is provided with crude synthesis gas outlet, bottom is provided with slag exit, described stove
The top of body is provided with fuel gas burner, and middle and lower part is provided with raw material garbage inlet, and bottom is provided with gasifying agent interface, and bottom dross exports
Top also be provided with fuel gas burner, described slag exit is connected with slag Quench tank 2.
It is provided with 1-3 flying dust returning charge import between described lower portion of furnace body and bottom.
Described upper of furnace body circular symmetric is provided with 2-6 fuel gas burner, during described fuel gas burner is vertical with gasification furnace
Axis becomes downwards 45～90 ° of angles.
Described bottom of furnace body circular symmetric is provided with 2-6 fuel gas burner, during described fuel gas burner is vertical with gasification furnace
Axis becomes 45～90 ° of angles upwards.
Described gasification furnace is fixed-bed gasification furnace, and described lower portion of furnace body is reducing taper necking, and cone angle is 30～60 °.
For solving problem present in background technology, inventor has carried out following improvement to gasification furnace: 1) on gasification furnace
Portion sets up fuel gas burner, enters circulation of qi promoting by being passed through fuel gas on gasification furnace top for the crude synthesis gas that refuse gasification is generated
Body weight is whole.After raw material rubbish enters in the middle part of gasification furnace, because rubbish itself may carry two English and gasification, and combustion mistake
Cheng Keneng generates two English, can carry a certain amount of two English in the crude synthesis gas all making refuse gasification generation, meanwhile, if
Gasification reaction temperature control obtains bad, in the case that temperature is relatively low, is likely to carry the macromole such as tar in crude synthesis gas
Organic substance, the fuel gas burner now by gasification furnace top has sprayed into the fuel containing gasifying agent (formation thermal-flame), makes
Crude synthesis gas can maintain higher temperature it is ensured that outlet crude synthesis gas temperature is at 1150～1250 DEG C, can play and synthesize to thick
Gas carries out the effect of gas reforming, simultaneously control high temperature more than 1150 DEG C for the crude synthesis gas under the time of staying be more than 2 seconds so that
The larger molecular organicses such as the tar in crude synthesis gas, two English, furan are thoroughly decomposed destruction in gasification furnace, ultimately generate with
h2With the crude synthesis gas based on co；2) raw material rubbish, in gasification furnace middle and lower part after gasification, and combustion, fails under the inorganic matters reacting
When falling and enter into gasification furnace bottom, spraying into the fuel gas containing gasifying agent by the fuel gas pouring mouth of gasification furnace bottom setting can shape
Thermal-flame is become to carry out slag, slag can generate stable in properties through Quench, nontoxic vitreous body slag；The fuel on cooperation top
The flame that gas burner sprays, and the gasifying agent straying quatity of bottom, can make the reaction temperature Flow Field Distribution in gasification furnace more equal
Even, make gasification reaction more complete, more efficiently improve gasification reaction efficiency and the thermal efficiency；3), using fixed bed gasification
Stove, can reduce the restriction to feed waste size it is easier to realize entering while different size rubbish on garbage feeding
Material, garbage feeding granularity is subjected to the Feed size in the range of 5～500mm.Meanwhile, in fixed-bed gasification furnace at garbage feeding
Dry section, dry distillation area, gasification zone and combustion zone can be divided into from top to bottom, by control the time of staying in gasification furnace for the rubbish and
Reaction temperature, the use of cooperation gasification furnace bottom dross section is it is ensured that rubbish reacts in gasification furnace completely.4) add flying dust to return
Material import, the flying dust (containing unreacted completely carbon containing combustible) producing is returned send in gasification furnace in follow-up dust-removing process
One step slag and gasification, thus avoiding the outer row of flying dust, more energy-conserving and environment-protective, also can improve the gasification of gasification furnace simultaneously further
Efficiency and the thermal efficiency.
Beneficial effect:
1. the gasification reaction temperature of this utility model gasification furnace is high, two English and furan etc. in the crude synthesis gas that reaction generates
Larger molecular organicses decompose destruction, and the synthesis gas generating that gasifies is practically free of two English etc.；Inorganic matters in rubbish and flying dust
Then stable in properties is generated by high-temperature slag mode, nontoxic vitreous body slag, and no fly ash emission, environmentally friendly；
2. this utility model adopts fixed-bed gasification furnace, and the granularity requirements width to feed waste is so that the rubbish processing is fitted
Ying Xinggeng is wide, both can process industrial refuse, and the such as general industry rubbish such as blast furnace slag, non-ferrous metal slag, flyash and industry is dirty
The hazardous solid wastes such as mud, pharmaceutical factory's residue, pesticide) it is also possible to process municipal refuse, such as food waste, paper, plastics, fabric, wheel
Tire, waste household appliances, bamboo and wood and greening garbage etc.；
3. this utility model the top of gasification furnace and bottom be provided with fuel gas burner for auxiliary gasify and slag,
Make the reaction temperature Flow Field Distribution in gasification furnace more uniform, make gasification reaction more complete, more efficiently improve gasification
Reaction efficiency and the thermal efficiency, the gasification furnace integrated gasification reaction thermal efficiency is up to more than 90%；
4. this utility model refuse gasification furnace structure is simple, safe and reliable, gasification efficiency is high, efficiency is high, production cost and
Operating cost is low, energy-conserving and environment-protective, popularizing application prospect are good.
Brief description
Fig. 1 is the structural representation of this utility model gasification furnace.
Wherein: 1 gasification furnace, 1.1 top crude synthesis gas outlets, 1.2 fuel gas burners, 1.3 raw material rubbish enter
Mouth, 1.4 gasifying agent interfaces, 1.5 fuel gas burners, 1.6 flying dust returning charge imports, 1.7 slag exits, 2 slags swash
Cold tank.
Fig. 2 is the scheme of installation of fuel gas burner 1.2.
Fig. 3 is the scheme of installation of fuel gas burner 1.5.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model gasification furnace structure is described in detail:
Referring to Fig. 1, described gasification furnace 1 top is provided with crude synthesis gas outlet 1.1, and upper, annular is arranged with 2-6 fuel
Gas burner 1.2, middle and lower part is provided with raw material garbage inlet 1.3, and bottom is provided with gasifying agent interface 1.4, and base circle is arranged with 2-6
Individual fuel gas burner 1.5, is provided with flying dust returning charge import 1.6 between bottom and bottom, is provided with and melts below fuel gas burner 1.5
The slag exit 1.7 that slag Quench tank 2 connects.
Technical process:
Raw material rubbish (such as the industrial refuses such as industrial sludge, pharmaceutical factory's residue, or the municipal refuse such as food waste, paper, plastics)
(charging is fed through in gasification furnace 1 by the raw material garbage inlet 1.3 of refuse gasification boiler 1 middle and lower part by garbage-compressing feed system
Particle diameter is in 5～500mm), and there is gasification reaction in the presence of the oxygen that gasifying agent interface 1.4 sprays into, control gasification reaction
At 1100～2000 DEG C, wherein, the Organic substance in rubbish generates with co and h after gasification reaction temperature2Based on thick synthesis
Gas, crude synthesis gas rise to refuse gasification boiler 1 top, the fire being sprayed by symmetrically arranged 2～6 fuel gas burners 1.2 in top
There is burning and gasification reaction further in flame, the crude synthesis gas generating are reformed, and controls and ensure crude synthesis gas from gas
Change temperature when stove 1 top crude synthesis gas outlet 1.1 is flowed out at 1150～1250 DEG C, stop in gasification furnace 1 for the crude synthesis gas
Time >=2s, the larger molecular organicses such as two English in outlet crude synthesis gas are made to decompose completely；Fail to the inorganic of gasification reaction
Thing then drops into gasification furnace 1 bottom, with by flying dust returning charge import 1.6 by subsequent handling in together with the flying dust that returns by gasification furnace
The flame that 2～6 fuel gas burners 1.5 of 1 bottom symmetrical setting spray carries out slag reaction, controls the height of gasification furnace 1 bottom
Warm molten slag temperature at 1300～2000 DEG C it is ensured that inorganic matters lime-ash forms molten slag, and by the slag of gasification furnace bottommost
Outlet 1.7 outflow, is entered into the slag Quench tank 2 being connected with the furnace bottom that gasifies and carries out slag Quench, thus forming stable glass
Glass body slag is discharged out-of-bounds.The fuel used gas of described fuel gas burner can be the high heat value gas such as natural gas or liquefied petroleum gas,
Can also be the self-produced synthesis gas of gasification furnace, preferably use gasification furnace from production of synthetic gas.
Claims (5)
1. a kind of refuse gasification boiler, including body of heater, described body of heater top is provided with crude synthesis gas outlet, bottom is provided with slag exit,
It is characterized in that, the top of described body of heater is provided with fuel gas burner, and middle and lower part is provided with raw material garbage inlet, and bottom is provided with gasifying agent
Interface, the top of bottom dross outlet also is provided with fuel gas burner, and described slag exit is connected with slag Quench tank.
2. refuse gasification boiler as claimed in claim 1 is it is characterised in that be provided with 1-3 between described lower portion of furnace body and bottom
Flying dust returning charge import.
3. refuse gasification boiler as claimed in claim 1 or 2 is it is characterised in that described upper of furnace body circular symmetric is provided with 2-6
Fuel gas burner, described fuel gas burner becomes 45～90 ° of angles downwards with gasification furnace vertical central axis line.
4. refuse gasification boiler as claimed in claim 1 or 2 is it is characterised in that described bottom of furnace body circular symmetric is provided with 2-6
Fuel gas burner, described fuel gas burner becomes 45～90 ° of angles upwards with gasification furnace vertical central axis line.
5. refuse gasification boiler as claimed in claim 1 or 2 is it is characterised in that described gasification furnace is fixed-bed gasification furnace, described
Lower portion of furnace body is reducing taper necking, and cone angle is 30～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835270.9U CN205893175U (en) | 2016-08-04 | 2016-08-04 | Garbage gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835270.9U CN205893175U (en) | 2016-08-04 | 2016-08-04 | Garbage gasification furnace |
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| Publication Number | Publication Date |
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| CN205893175U true CN205893175U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620835270.9U Active CN205893175U (en) | 2016-08-04 | 2016-08-04 | Garbage gasification furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891998A (en) * | 2021-01-25 | 2021-06-04 | 中国五环工程有限公司 | Device for separating and discharging molten slag and melting gasification system comprising device |
-
2016
- 2016-08-04 CN CN201620835270.9U patent/CN205893175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891998A (en) * | 2021-01-25 | 2021-06-04 | 中国五环工程有限公司 | Device for separating and discharging molten slag and melting gasification system comprising device |
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| GR01 | Patent grant |