CN207619337U - A kind of domestic garbage pyrolysis gasification fuel gas drying reclaiming system - Google Patents
A kind of domestic garbage pyrolysis gasification fuel gas drying reclaiming system Download PDFInfo
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- CN207619337U CN207619337U CN201721341326.6U CN201721341326U CN207619337U CN 207619337 U CN207619337 U CN 207619337U CN 201721341326 U CN201721341326 U CN 201721341326U CN 207619337 U CN207619337 U CN 207619337U
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- fuel gas
- gas
- domestic garbage
- pyrolysis
- reclaiming system
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Abstract
The utility model discloses a kind of domestic garbage pyrolysis gasification fuel gas to dry reclaiming system, it includes pyrolysis oven（Inside set combustible gas collection conduit）, fuel gas cooling device, fuel gas dehydration device, fuel gas reheating oxygen supplementing device, cooling water circulation pond, fuel gas gas distributing pipeline etc. in pyrolysis oven.Pass through the efficient combination to measures such as effective collection of domestic garbage pyrolysis gasification layer fuel gas, cooled dehydrated, reheating oxygenatings, it greatly reduces into fuel gas moisture content in pyrolysis oven, improve pyrolysis oven reaction temperature, the generation of the pollutants such as dioxin, tar, carbon monoxide is effectively contained, it lays a good foundation for pollutant discharge in compliance with the standard, obvious environment benefit.
Description
Technical field
The utility model is related to a kind of domestic garbage pyrolysis gasification fuel gas to dry reclaiming system.
Background technology
In recent years, the development of China's domestic garbage pyrolysis gasification technology is very fast, just gradually substitutes original sanitary landfills, heap
Fertilizer, the technologies such as power generation of burning away the refuse.Since China's house refuse moisture content is higher（40~60%）, taxonomic hierarchies are not perfect in addition,
Cause the house refuse moisture content entered in pyrolysis gasification furnace higher.Because of the good leak tightness of pyrolysis gasification furnace, house refuse drying
The vapor of generation can only enter lower end in pyrolysis gasification furnace with fuel gas after collection conduit is collected and carry out oxygen-enriched combustion together
It burns, heat source is provided for the automatic continuous operation of domestic garbage pyrolysis processing.According to analysis, fuel gas temperature is 300-400 DEG C, contains
Water is much larger than 600g/kg dry flue gas, and fuel gas direct circulation reuse burning causes pyrolysis oven reaction temperature low（Less than 850
℃）, the pollutant concentrations such as dioxin, tar, CO increase in flue gas so that fume treatment difficulty increases, and environmental risk is also got over
Come higher.Effectively to contain that the generation of dioxin, China exist《Consumer waste incineration contamination control standard》（GB 18485-2014）
Middle clear stipulaties house refuse heat treatment requirements reaction temperature is more than 2S more than 850 DEG C, gas residence time.In addition, being recycled back to
It is high with fuel gas moisture content so that domestic garbage pyrolysis furnace temperature is low, and domestic garbage pyrolysis process fuel gas is caused to generate
Amount and its quality decline, and the reduction of domestic garbage pyrolysis stove reaction temperature are further resulted in, so that domestic garbage pyrolysis gas
Change reaction system and enter vicious circle, can finally lead to the system astable operation, or even stop transport.
Utility model content
The utility model aims to solve the problem that the above problem, is arranged using combinations such as fuel gas cooling, dehydration, fuel gas reheating
It applies, solves the problems, such as that fuel gas humidity is big, calorific value is low, pyrolysis oven reaction temperature is not high, realize that domestic garbage pyrolysis gasification can
Gas dry and efficient reuse are fired, is laid the foundation for the system stable operation and qualified discharge.That is, the utility model is to solve to follow
The problem that loopback is big with fuel gas humidity, calorific value is low, pyrolysis oven reaction temperature is not high provides a kind of domestic garbage pyrolysis gas
Change fuel gas and dries reclaiming system.
In order to achieve the above object, technical solution provided by the utility model is：
The domestic garbage pyrolysis gasification fuel gas drying reclaiming system includes that inner cavity is from top to bottom divided into drying layer, heat
Solve the pyrolysis gasification furnace of gasification layer and burning zone（1）；The pyrolysis gasification furnace（1）The middle part of inner cavity pyrolytic gasification layer is equipped with flammable
Gas collection pipeline（2）；The combustible gas collecting pipeline（2）Stretch out pyrolysis gasification furnace（1）Afterwards with fuel gas cooling device
（3）Gas feed connection；The fuel gas cooling device（3）Gas vent and fuel gas dehydration device（4）Gas
Body import connects；The fuel gas dehydration device（4）Gas vent and fuel gas reheating oxygen supplementing device（5）Gas into
Mouth connection；The fuel gas reheating oxygen supplementing device（5）Gas vent and be set to pyrolysis gasification furnace（1）Inner cavity burning zone
Fuel gas gas distribution pipe（6）Connection；The reclaiming system further includes cooling pond（7）, the water cooling pond（7）Water outlet with can
Fire gas cooling device（3）Water inlet connection, fuel gas cooling device（3）Water outlet and fuel gas reheat machine
（5）Water inlet connection, fuel gas reheat machine（5）Water outlet and urbanite water consumption end（8）Connection.
Preferably, the combustible gas collecting pipeline（2）Along pyrolysis gasification furnace furnace wall, rounded " day " shape is distributed, and flammable
Gas collection pipeline（2）It is equipped with downward opening aperture.The fuel gas dehydration device（4）Inner cavity is equipped with spiral board and folding
Flowing plate, fuel gas is in fuel gas dehydration device（4）From top to bottom move.The fuel gas gas distribution pipe（6）In " non-" word
Shape is arranged, and fuel gas gas distribution pipe（6）It is equipped with downward opening gas distribution aperture.
The utility model is described in further detail below：
Fuel gas described in the utility model from pyrolysis gasification furnace come out after trend be：Pyrolysis gasification furnace fuel gas is received
Collecting pipe outlet, --- fuel gas cooling device --- fuel gas dehydration device --- fuel gas reheating oxygenating fills
Set --- the fuel gas gas distributing pipeline of lower end in pyrolysis gasification furnace；Cooling water moves towards：Cooling water circulation pond --- combustible gas
Body cooling device --- fuel gas reheating oxygen supplementing device --- resident uses.The collection conduit is collected, water cooling heat exchanger is cold
But, after the combination such as baffle plate dehydration, fuel gas reheating oxygenating measure processing, fuel gas temperature can reach 80 DEG C or so, contain
Water is less than 90g/kg dry flue gas, is directly entered lower end in pyrolysis gasification furnace and carries out oxygen-enriched combusting.
Cooling water temperature is about 30 DEG C, and after fuel gas cooling device fully exchanges heat, cooling water temperature is up to 90 DEG C
Left and right, warm pipe enter fuel gas reheating oxygen supplementing device.In shell and tube fuel gas reheating oxygen supplementing device, low-temperature flue gas
In row in-pipe, high-temperature-hot-water outside tubulation with flue gas reverse flow, residence time of the flue gas in tubulation（When heat exchange
Between）More than 10S, combustible gas temperature is improved to 80 DEG C or so, fully realizes the interior cycle of heat.The outer hot water of tubulation is after heat exchange
About 50 DEG C of outlet temperature can be directly used for resident living without blending cold water, improve the domestic garbage pyrolysis gasification thermal efficiency.
Compared with prior art, the utility model has the following advantages that：
（1）Flue gas moisture content is reduced, reaction temperature is improved
Refuse pyrolysis gasification cycle reuse fuel gas moisture content living is high, and calorific value is not high, causes pyrolysis oven reaction temperature low
（Less than 850 DEG C）.This root of hair makes full use of cooled dehydrated, cold according to the notable linear dependence of flue gas saturation moisture content and temperature
Hot water substantially reduces reuse fuel gas water content to the combination measure such as flue gas reheating, improves domestic garbage pyrolysis gasification
Stove reaction temperature.
（2）Reduce the generation of pollutant, obvious environment benefit
Pyrolysis oven reaction temperature can be improved in the utility model（850 DEG C of ＞）, effectively inhibit the pollutions such as dioxin, tar, CO
The generation of object, while by improving dual firing chamber's reaction temperature so that dioxin, tar, CO etc. are effectively removed through burning,
Follow-up concentration of flue gas pollutants is greatly reduced, is laid the foundation for vent gas treatment qualified discharge, obvious environment benefit.
（3）Fuel gas yield and quality is improved, the stability of system response is increased
Improve pyrolysis oven reaction temperature, can be promoted to a certain extent domestic garbage pyrolysis gasification fuel gas yield with
Quality, and then pyrolysis oven reaction temperature can be further increased, it is ensured that the sustainability of domestic garbage pyrolysis reaction system operation
And stability.
In short, a kind of domestic garbage pyrolysis gasification fuel gas drying reclaiming system described in the utility model passes through to cycle
Reuse fuel gas carries out cooled dehydrated and reheating, reduces water content, improves pyrolysis oven reaction temperature, effectively reduces flue gas dirt
The generation of object, obvious environment benefit are contaminated, and is laid the foundation for the stable operation of system.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structural schematic diagram of combustible gas collecting pipeline in the utility model；
The structural schematic diagram of fuel gas gas distribution pipe in Fig. 3 the utility model.
In figure：1-pyrolysis gasification furnace, 2-combustible gas collecting pipelines, 3-fuel gas cooling devices, 4-combustible gases
Body dehydration device, 5-fuel gas reheating oxygen supplementing devices, 6-fuel gas gas distribution pipes, 7-cooling ponds, 8-urbanite water consumptions
End.
Specific implementation mode
Embodiment 1
Referring to Fig. 1 to Fig. 3, domestic garbage pyrolysis gasification fuel gas drying reclaiming system include inner cavity from top to bottom
It is divided into the pyrolysis gasification furnace 1 of drying layer, pyrolytic gasification layer and burning zone；In 1 inner cavity pyrolytic gasification layer of the pyrolysis gasification furnace
Portion is equipped with combustible gas collecting pipeline 2；The combustible gas collecting pipeline 2 cools down after stretching out pyrolysis gasification furnace 1 with fuel gas
The gas feed of device 3 connects；The gas of the gas vent and fuel gas dehydration device 4 of the fuel gas cooling device 3
Import connects；The gas vent of the fuel gas dehydration device 4 connects with the gas feed of fuel gas reheating oxygen supplementing device 5
It connects；The gas vent of the fuel gas reheating oxygen supplementing device 5 and the fuel gas for being set to 1 inner cavity burning zone of pyrolysis gasification furnace
Gas distribution pipe 6 connects；The reclaiming system further includes cooling pond 7, water outlet and the fuel gas cooling device of the water cooling pond 7
3 water inlet connection, the water outlet of fuel gas cooling device 3 are connect with the water inlet of fuel gas reheat machine 5, combustible gas
The water outlet of body reheat machine 5 is connect with urbanite water consumption end 8.
Preferably, the combustible gas collecting pipeline 2 is distributed along rounded " day " shape in pyrolysis gasification furnace furnace wall, and combustible gas
Body collection conduit 2 is equipped with downward opening aperture.4 inner cavity of fuel gas dehydration device is equipped with spiral board and baffle plate,
Fuel gas is from top to bottom moved in fuel gas dehydration device 4.The fuel gas gas distribution pipe 6 is arranged in " non-" font, and
Fuel gas gas distribution pipe 6 is equipped with downward opening gas distribution aperture.
Domestic garbage pyrolysis gasification fuel gas drying reclaiming system can by fuel gas water content from 600g/kg with
On will down to 90g/kg hereinafter, dehydration rate be more than 85%.
Claims (4)
1. a kind of domestic garbage pyrolysis gasification fuel gas dries reclaiming system, the reclaiming system includes that inner cavity is from top to bottom divided
For drying layer, the pyrolysis gasification furnace of pyrolytic gasification layer and burning zone（1）, which is characterized in that the pyrolysis gasification furnace（1）Inner cavity heat
The middle part for solving gasification layer is equipped with combustible gas collecting pipeline（2）；The combustible gas collecting pipeline（2）Stretch out pyrolysis gasification furnace
（1）Afterwards with fuel gas cooling device（3）Gas feed connection；The fuel gas cooling device（3）Gas vent with
Fuel gas dehydration device（4）Gas feed connection；The fuel gas dehydration device（4）Gas vent and fuel gas
Reheating oxygen supplementing device（5）Gas feed connection；The fuel gas reheating oxygen supplementing device（5）Gas vent and be set to heat
Solve gasification furnace（1）The fuel gas gas distribution pipe of inner cavity burning zone（6）Connection；The reclaiming system further includes cooling pond（7）, institute
State cooling pond（7）Water outlet and fuel gas cooling device（3）Water inlet connection, fuel gas cooling device（3）'s
Water outlet and fuel gas reheating oxygen supplementing device（5）Water inlet connection, fuel gas reheating oxygen supplementing device（5）Water outlet with
Urbanite water consumption end（8）Connection.
2. domestic garbage pyrolysis as described in claim 1 gasification fuel gas dries reclaiming system, which is characterized in that it is described can
Combustion gas body collection conduit（2）Along pyrolysis gasification furnace furnace wall, rounded " day " shape is distributed, and combustible gas collecting pipeline（2）It is equipped with
Downward opening aperture.
3. domestic garbage pyrolysis as described in claim 1 gasification fuel gas dries reclaiming system, which is characterized in that it is described can
Fire gas dewatering device（4）Inner cavity is equipped with spiral board and baffle plate, and fuel gas is in fuel gas dehydration device（4）From top to bottom
It is mobile.
4. domestic garbage pyrolysis as described in claim 1 gasification fuel gas dries reclaiming system, which is characterized in that it is described can
Combustion gas body gas distribution pipe（6）It is arranged in " non-" font, and fuel gas gas distribution pipe（6）It is equipped with downward opening gas distribution aperture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806304 | 2017-09-08 | ||
| CN2017108063040 | 2017-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619337U true CN207619337U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721341326.6U Active CN207619337U (en) | 2017-09-08 | 2017-10-18 | A kind of domestic garbage pyrolysis gasification fuel gas drying reclaiming system |
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| CN (1) | CN207619337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108498A (en) * | 2020-09-10 | 2020-12-22 | 重庆大学 | Integrated treatment method and treatment device for solid garbage and leachate in household garbage |
-
2017
- 2017-10-18 CN CN201721341326.6U patent/CN207619337U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108498A (en) * | 2020-09-10 | 2020-12-22 | 重庆大学 | Integrated treatment method and treatment device for solid garbage and leachate in household garbage |
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