CN203319943U - Downdraft garbage disposal gasifier - Google Patents
Downdraft garbage disposal gasifier Download PDFInfo
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- CN203319943U CN203319943U CN2013201114443U CN201320111444U CN203319943U CN 203319943 U CN203319943 U CN 203319943U CN 2013201114443 U CN2013201114443 U CN 2013201114443U CN 201320111444 U CN201320111444 U CN 201320111444U CN 203319943 U CN203319943 U CN 203319943U
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Abstract
The utility model discloses a downdraft garbage disposal gasifier. The gasifier comprises a gasifier body and a stirrer in the gasifier body, wherein the gasifier is divided into a drying area, a pyrolysis area, a burning area and a reducing area from top to bottom; the stirrer is arranged in the drying area; an air pipeline and a thermocouple are arranged in the furnace wall of the burning area. The gasifier is characterized in that gas and an organic material are mixed and flow downward to pass through a high temperature area, and perform a gasification reaction. The gasifier has the characteristics that gas and solids flow forward, and gas produced by the downdraft gasifier contains little tar, so that on the one hand, the subsequent treatment equipment can be simplified, and on the other hand, secondary pollution to the environment can be effectively reduced. Regarding certain components in garbage, which are small in density, poor in flowing performance, easy to bridge and evacuate and the like, the material can move downward smoothly by virtue of the proper stirrer, and uniform and stable gasifier operation can be realized.
Description
Technical field
The utility model relates to refuse treatment machinery field, is specifically related to a kind of downdraft refuse treatment vapourizing furnace.
Background technology
Rubbish is serious problems in the Chinese many cities of puzzlement.Along with the development of the modernization of industry, the raising of living standards of the people, the output of garbage waste material is growing, and composition is also changing.In the municipal wastes of China, organic content obviously rises in recent years, and wherein plastic waste and waste rubber etc. increase significantly.The characteristics such as that the organic waste waste has is loose, low density, low heat value, high volatile and component of refuse complexity, rubbish directly burns many problems that exist, and as: hypertoxic chlorine-containing compound pcdds, pcdfs, pcbs (general designation dioxin-like chemical) and containing the flying dust of hg, pb etc., causes [1] such as air environmental pollutions.The pyrolytic gasification technology can be transformed into geseous fuel by the organic waste raw material, makes it become the clean energy, is a kind of rising renewable energy utilization mode [2～5].
The vapourizing furnace form mainly contains updraft type moving-bed, downdraft moving-bed, bubbling fluidized bed, circulating fluidized bed, spouted bed and air flow bed etc.; Gasifying medium can be air, water vapour and oxygen-rich air etc.; The combustion gas of vapourizing furnace output can be used for cooking, heating, boiler or generating etc.According to the physics-chem characteristic of domestic waste, from reducing the combined factors such as material pre-treatment cost, raising inflammable gas productive rate, reduction tar yield, to consider, down-draft type gasifying furnace is the comparatively ideal gasification type of furnace.The feature of down-draft type gasifying furnace is that gas and organic materials mixing flow downward by high-temperature zone, the generating gasification reaction.Down-draft type gasifying furnace is than proven technique aspect gasification of coal, but the report of the research aspect pyrolytic gasification treating refuse waste is less.A kind of down-draft type gasifying furnace that shrinks the aditus laryngis district that has is used in this research, and domestic waste is carried out to the air gasification experimental study.
The utility model content
Technical problem to be solved in the utility model is higher for the domestic waste water content, and material component complexity, the characteristics that structure is inhomogeneous, provide a kind of few containing the gas tar content, effectively reduces the downdraft refuse treatment vapourizing furnace that environment is formed to secondary pollution.
The utility model is achieved through the following technical solutions: a kind of downdraft refuse treatment vapourizing furnace.Comprise body of heater, and the agitator of built-in body of heater, described body of heater is divided into drying zone, pyrolysis zone, combustion zone and reduction zone from top to down, and described agitator is installed on the drying zone place, the furnace wall at place, described combustion zone is provided with air line, and in the furnace wall of combustion zone, thermopair also is housed.
As preferred technical scheme, the furnace body outer wall of below, described reduction zone is provided with the gas pipeline of L-type.
As preferred technical scheme, the throat that described reduction zone is body of heater, its upper end bore is less than the lower end bore.
The beneficial effects of the utility model are: gas and organic materials mixing flow downward and pass through high-temperature zone, the generating gasification reaction, be characterized in that gas-solid is forward mobile, because the gas tar content of down-draft type gasifying furnace output is less, follow-up treatment facility can be simplified on the one hand, the secondary pollution to environment can be effectively reduced on the other hand.Little for some composition density in rubbish, poor fluidity, the characteristics such as easily build bridge, find time, install suitable agitator, and material is moved down smoothly, realizes uniform and stable vapourizing furnace operation.
The accompanying drawing explanation
For ease of explanation, the utility model is described in detail by following specific embodiment and accompanying drawing.
The structural representation that Fig. 1 is the utility model downdraft refuse treatment vapourizing furnace.
Description of reference numerals:
1, body of heater; 2, agitator; 3, drying zone; 4, pyrolysis zone; 5, combustion zone; 6, reduction zone; 7, air line; 8, thermopair; 9, gas pipeline.
Embodiment
A kind of downdraft refuse treatment vapourizing furnace, comprise body of heater 1, and the agitator 2 of built-in body of heater 1, described body of heater 1 is divided into drying zone 3, pyrolysis zone 4, combustion zone 5 and reduction zone 6 from top to down, described agitator 2 is installed on drying zone 3 places, the furnace wall at 5 places, described combustion zone is provided with air line 7, and in the furnace wall of combustion zone 5, thermopair 8 also is housed.
Wherein, body of heater 1 outer wall of 6 belows, described reduction zone is provided with the gas pipeline 9 of L-type.
The throat that described reduction zone 6 is body of heater 1, its upper end bore is less than the lower end bore.
During operation, material is moved down by the top drying zone, carries out process dry and thermolysis while moving, and through aditus laryngis the time, with the air generation combustion reactions of spirt, remaining charcoal falls into the aditus laryngis below, with co2 and water vapour in air-flow, reacts generation co and h2.Bottom, aditus laryngis district is the charcoal bed, with the bed temperature at thermocouple measurement aditus laryngis place.Material and gas flow downward by the aditus laryngis district in the same way, the high-temperature gasification reaction occurs in the aditus laryngis district and produce combustible gas.Due to the sudden enlargement of the aditus laryngis in down-draft type gasifying furnace below body of heater volume, correspondingly extended the gas phase residence time, make tar cracking more up hill and dale in high-temperature zone, thereby an outstanding advantages of down-draft type gasifying furnace is that tar content in gas is fewer.Tar is the inevitable by product produced in biomass or domestic garbage gasification process, in the subsequent applications of gasification gas, need to be processed tar.WATER-WASHING METHOD is the major way of oil treatment of focusing at present, thereby inevitably can produce secondary pollution, and environment is caused to more serious harm.
The beneficial effects of the utility model are: gas and organic materials mixing flow downward and pass through high-temperature zone, the generating gasification reaction, be characterized in that gas-solid is forward mobile, because the gas tar content of down-draft type gasifying furnace output is less, follow-up treatment facility can be simplified on the one hand, the secondary pollution to environment can be effectively reduced on the other hand.Little for some composition density in rubbish, poor fluidity, the characteristics such as easily build bridge, find time, install suitable agitator, and material is moved down smoothly, realizes uniform and stable vapourizing furnace operation.
The above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited to this, and any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. a downdraft refuse treatment vapourizing furnace, it is characterized in that: comprise body of heater, and the agitator of built-in body of heater, described body of heater is divided into drying zone, pyrolysis zone, combustion zone and reduction zone from top to down, described agitator is installed on the drying zone place, the furnace wall at place, described combustion zone is provided with air line, and in the furnace wall of combustion zone, thermopair also is housed.
2. downdraft refuse treatment vapourizing furnace according to claim 1 is characterized in that: the furnace body outer wall of below, described reduction zone is provided with the gas pipeline of L-type.
3. downdraft refuse treatment vapourizing furnace according to claim 1, it is characterized in that: the throat that described reduction zone is body of heater, its upper end bore is less than the lower end bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201114443U CN203319943U (en) | 2013-03-05 | 2013-03-05 | Downdraft garbage disposal gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201114443U CN203319943U (en) | 2013-03-05 | 2013-03-05 | Downdraft garbage disposal gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203319943U true CN203319943U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201114443U Expired - Fee Related CN203319943U (en) | 2013-03-05 | 2013-03-05 | Downdraft garbage disposal gasifier |
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| Country | Link |
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| CN (1) | CN203319943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762108A (en) * | 2015-03-10 | 2015-07-08 | 新奥科技发展有限公司 | Fluidized bed gasification furnace and gasification system |
| CN105733622A (en) * | 2016-04-28 | 2016-07-06 | 无锡锡能锅炉有限公司 | Downdraft biomass gasifier |
-
2013
- 2013-03-05 CN CN2013201114443U patent/CN203319943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762108A (en) * | 2015-03-10 | 2015-07-08 | 新奥科技发展有限公司 | Fluidized bed gasification furnace and gasification system |
| CN104762108B (en) * | 2015-03-10 | 2017-10-10 | 新奥科技发展有限公司 | Fluidized-bed gasification furnace and gasification system |
| CN105733622A (en) * | 2016-04-28 | 2016-07-06 | 无锡锡能锅炉有限公司 | Downdraft biomass gasifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140305 |