CN107461747A - A kind of pyrolysis gasification system - Google Patents
A kind of pyrolysis gasification system Download PDFInfo
- Publication number
- CN107461747A CN107461747A CN201710591348.6A CN201710591348A CN107461747A CN 107461747 A CN107461747 A CN 107461747A CN 201710591348 A CN201710591348 A CN 201710591348A CN 107461747 A CN107461747 A CN 107461747A
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- China
- Prior art keywords
- pyrolysis gasification
- layer
- ash
- lime
- pyrolysis
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of pyrolysis gasification system, the pyrolysis gasification system includes pyrolysis gasification furnace, and the pyrolysis gasification furnace is provided with drying layer, pyrolytic gasification layer and burning zone from top to bottom.The drying layer temperature is 120 160 DEG C, and the pyrolytic gasification layer temperature is 200 650 DEG C；The burning zone temperature is 850 1100 DEG C.The pyrolysis gasification system is reasonable in design, compact-sized, and house refuse passes through drying layer, pyrolytic gasification layer and burning zone successively from top to bottom, and finally produces harmless lime-ash；Fuel gas burns again through heat exchange Posterior circle to burning zone caused by pyrolytic gasification layer, improves system waste heat recovery utilization rate.
Description
Technical field
The present invention relates to technical field of domestic garbage treatment, specifically a kind of pyrolysis gasification system.
Background technology
As urbanization process is accelerated, domestic waste sharply increases, and the two of rubbish growing day by day and garbage disposal
Secondary pollution causes new pollution to soil, water resource, air and environment for human survival and destroyed.Government dials wholesale fund and is used for every year
Garbage disposal.Sanitary landfills：Need large area soil, the serious polluted underground water of silt liquid seepage and soil, the protection of blast also phase
Work as complexity.Burning electricity generation：Calorific value requires high, and the requirement of rubbish quantity limits its application, bis- Evil wherein in flue gas
English intractability is high.Compost：Higher is required to refuse classification, heavy metal pollution is difficult to control, and its another caused smell is smelly, needs
It is selected in the large area soil of remote location.
High temperature anaerobic reductive cleavage refers to the course of reaction of organic matter heat resolve in the case where completely cutting off air conditionses.House refuse
Mainly by material compositions such as stationery, metal, glass, plastics, detritus classes.By high temperature anaerobic reductive cleavage device, in biomass
Polymer substance start to crack, generate gas mixture and charcoal.Mixture is divided into combustible gas and oil after supercooling.Rubbish
High temperature anaerobic reductive cleavage treatment technology, not only thoroughly solve the problems, such as that garbage disposal is polluted again from environmental protection, also by people
" waste " thought become regenerated resources.
Pyrolysis gasification system is the important component in domestic garbage treating system, and existing pyrolysis gasification system is present
The problem of system waste heat recovery utilization rate is low.Therefore, the present invention provides a kind of system waste heat recovery utilization rate high pyrolytic gasification
System.
The content of the invention
It is an object of the invention to provide a kind of pyrolysis gasification system, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of pyrolysis gasification system, the pyrolysis gasification system include pyrolysis gasification furnace, the pyrolysis gasification furnace from upper and
Have drying layer, pyrolytic gasification layer and burning zone.
As the further scheme of the present invention：The drying layer temperature is 120-160 DEG C, and the pyrolytic gasification layer temperature is
200-650℃；The burning zone temperature is 850-1100 DEG C.
As the further scheme of the present invention：The drying layer temperature is 150 DEG C.
A kind of handling process of pyrolysis gasification system, comprises the following steps：House refuse enters pyrolysis gasification furnace, is being pyrolyzed
After the burner hearth bottom igniting of gasification furnace, house refuse starts to burn and discharges substantial amounts of heat, and hot-air is in the presence of air-introduced machine
With house refuse move toward one another, house refuse passes through drying layer, pyrolytic gasification layer and burning zone successively from top to bottom, and finally produces
Raw harmless lime-ash；Fuel gas burns again through heat exchange Posterior circle to burning zone caused by pyrolytic gasification layer.
As the further scheme of the present invention：House refuse is by feeding trapezoidal chute feed mouth even into pyrolytic gasification
Stove.
As the further scheme of the present invention：The harmless lime-ash outside slag removing system by arranging.
As the further scheme of the present invention：The slag removing system includes automatic de-ironing device and lime-ash storage device.
As the further scheme of the present invention：The handling process of the slag removing system includes:Harmless lime-ash is by removing slag system
The automatic de-ironing device of system carries out iron removaling, and the lime-ash after processing is stored by lime-ash storage device.
Compared with prior art, the beneficial effects of the invention are as follows：
The pyrolysis gasification system is reasonable in design, compact-sized, and house refuse is from top to bottom successively by drying layer, pyrolysis gas
Change layer and burning zone, and finally produce harmless lime-ash；Fuel gas caused by pyrolytic gasification layer is through heat exchange Posterior circle to burning
Layer burns again, improves system waste heat recovery utilization rate.
Brief description of the drawings
Fig. 1 is the process flow diagram of domestic garbage treating system.
Fig. 2 is the process flow diagram of pyrolysis gasification system.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-2, a kind of domestic garbage treating system, including pyrolysis gasification system, slag removing system and tail gas clean-up
System；The pyrolysis gasification system includes pyrolysis gasification furnace, and the pyrolysis gasification furnace is provided with drying layer, pyrolytic gasification from top to bottom
Layer and burning zone；The slag removing system includes automatic de-ironing device and lime-ash storage device；The exhaust gas purification system includes spray
Water wash system, charcoal absorption system and demister；
The technological process of the domestic garbage treating system includes：
(1) house refuse is directly over feeding trapezoidal chute feed mouth even into pyrolysis gasification furnace, in heat without sorting
After the burner hearth bottom igniting for solving gasification furnace, house refuse starts to burn and discharges substantial amounts of heat, effect of the hot-air in air-introduced machine
Lower and house refuse move toward one another, house refuse pass through drying layer, pyrolytic gasification layer and burning zone successively from top to bottom, and finally
Produce harmless lime-ash；Fuel gas burns again through heat exchange Posterior circle to burning zone caused by pyrolytic gasification layer, improves system
Heat recovery rate；The drying layer temperature is 120-160 DEG C, preferably 150 DEG C；The pyrolytic gasification layer temperature is 200-
650℃；The burning zone temperature is 850-1100 DEG C；
(2) harmless lime-ash carries out iron removaling by the automatic de-ironing device of slag removing system, and the lime-ash after processing is deposited by lime-ash
Storage device stores, and the lime-ash of storage can be transported to the place needed to use；
(3) tail gas enters in exhaust gas purification system, carries out dedusting and cooling, tail gas clean-up cooling, dust-removal and desulfurizing, heavy metal
Absorption and demister dehumidification operation；Tail gas, which enters in cooling bay, to cool, and spray washing system, spray washing are provided with cooling bay
System carries out dedusting, purification, cooling treatment to tail gas；Then tail gas is adsorbed by charcoal absorption system again, so as to
Tail gas clean-up cooling, dust-removal and desulfurizing, heavy metal adsorption removing are realized, can be to cigarette using spray washing and active carbon adsorption technology
Dust, SO in gas2, the pollutant component such as NOx and heavy metal effectively removed；Then dehumidified again by demister, finally
By tail gas qualified discharge；Efflux gas mixes in spray washing cooling procedure after caused tar liquid is collected with rubbish, enters
Enter pyrolysis gasification furnace to reuse, reduce pollutant discharge amount；
(4) spent shower water caused by vent gas treatment process is collected to sedimentation basin, and by the processing of one-level precipitation purification, two
Recycle-water is obtained after the processing of level precipitation purification, the processing operation of three-level precipitation purification, recycle-water can be repeated for spray washing system；
Sedimentation basin bed mud enters pyrolysis gasification furnace after being mixed as recovered material with rubbish, realize and recycle.
The present invention operation principle be：In figure, solid line connecting line represents flue, and dotted line connecting line represents tar pipe
Road, dashed connection line represent waterpipe.This technology is to be based on domestic garbage pyrolysis gasification principle, by pyrolytic gasification technique and pyrolysis
A kind of middle-size and small-size scale application of city life garbage comprehensive utilization new technique of gas efficient burning process combination exploitation.This technology has
Have and do not add the technical advantages such as auxiliary fuel, emission compliance, rubbish need not store classification, processing cost is low, floor space is small, its
Cardinal principle refers under conditions of oxygen deprivation or anoxic, is occurred at high temperature using the thermal instability of wherein organic waste fractions
Cracking, so as to deviate from volatile materials, eventually becomes combustible gas, tar liquid and a small amount of charcoal shape residue, combustible gas and tar
Carry out oxygen-enriched combusting reuse.By regulating and controlling to oxygen-supplying amount, air inducing acc power, charging rate, deslagging rotating speed etc. in stove so that in stove
It is stable to be divided into drying layer (150 DEG C), pyrolytic gasification layer (200-650 DEG C), burning zone (850-1100 DEG C).For county town and medium and small
Application of city life garbage treatment scale, compared to sanitary landfills domestic garbage pyrolysis technology can maximumlly volume reduction, subtract matter, subtract bright
Rate is up to more than 95%；Compared to compost, process cycle is short without being limited by house refuse component；Compared to directly burn, except
Most heavy metal dissolves in lime-ash during pyrolytic gasification, reduces outside discharge capacity, bioxin and nitrogen, oxysulfide
Control advantage is had more in discharge；It is wide in the absence of the strict demand of addressing, applicability compared to cement kiln synergic processing house refuse
It is general.The domestic garbage treating system can realize wastewater zero discharge, and waste residue 100% utilizes, while exports thermal water resource.
The pyrolysis gasification system is reasonable in design, compact-sized, and house refuse is from top to bottom successively by drying layer, pyrolysis gas
Change layer and burning zone, and finally produce harmless lime-ash；Fuel gas caused by pyrolytic gasification layer is through heat exchange Posterior circle to burning
Layer burns again, improves system waste heat recovery utilization rate.
, it is necessary to illustrate in the description of this pyrolysis gasification system, unless otherwise clearly defined and limited, term
" setting ", " connected " and " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (8)
1. a kind of pyrolysis gasification system, it is characterised in that the pyrolysis gasification system includes pyrolysis gasification furnace, the pyrolytic gasification
Stove is provided with drying layer, pyrolytic gasification layer and burning zone from top to bottom.
2. pyrolysis gasification system according to claim 1, it is characterised in that the drying layer temperature is 120-160 DEG C, institute
Pyrolytic gasification layer temperature is stated as 200-650 DEG C；The burning zone temperature is 850-1100 DEG C.
3. pyrolysis gasification system according to claim 2, it is characterised in that the drying layer temperature is 150 DEG C.
4. a kind of handling process of pyrolysis gasification system as claimed in claim 1, it is characterised in that comprise the following steps：It is raw
Rubbish living enters pyrolysis gasification furnace, and after the burner hearth bottom igniting of pyrolysis gasification furnace, house refuse starts to burn and discharged a large amount of
Heat, hot-air in the presence of air-introduced machine with house refuse move toward one another, house refuse from top to bottom successively by drying layer,
Pyrolytic gasification layer and burning zone, and finally produce harmless lime-ash；Fuel gas is through heat exchange Posterior circle caused by pyrolytic gasification layer
Burnt again to burning zone.
5. the handling process of pyrolysis gasification system according to claim 4, it is characterised in that house refuse is by charging ladder
Shape chute feed mouth is even into pyrolysis gasification furnace.
6. the handling process of pyrolysis gasification system according to claim 4, it is characterised in that the harmless lime-ash by except
Arranged outside slag system.
7. the handling process of pyrolysis gasification system according to claim 6, it is characterised in that the slag removing system is included certainly
Dynamic tramp iron separator and lime-ash storage device.
8. the handling process of pyrolysis gasification system according to claim 7, it is characterised in that the processing of the slag removing system
Technique includes:Harmless lime-ash carries out iron removaling by the automatic de-ironing device of slag removing system, and the lime-ash after processing is stored by lime-ash
Device stores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591348.6A CN107461747A (en) | 2017-07-19 | 2017-07-19 | A kind of pyrolysis gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591348.6A CN107461747A (en) | 2017-07-19 | 2017-07-19 | A kind of pyrolysis gasification system |
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| Publication Number | Publication Date |
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| CN107461747A true CN107461747A (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710591348.6A Pending CN107461747A (en) | 2017-07-19 | 2017-07-19 | A kind of pyrolysis gasification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580511A (en) * | 2018-04-04 | 2018-09-28 | 杭州瑞赛可环境工程有限公司 | It is a kind of to utilize ultrasound-enhanced organic waste pyrolytic gasification equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201772465U (en) * | 2010-09-08 | 2011-03-23 | 安徽海螺川崎节能设备制造有限公司 | Refuse burning device |
| CN104501172A (en) * | 2014-12-22 | 2015-04-08 | 危朝东 | Organic solid waste gasification treatment device |
| CN104501171A (en) * | 2014-12-24 | 2015-04-08 | 山东华源锅炉有限公司 | RDF (refuse derived fuel) pyrolysis and gasification system |
| CN105674280A (en) * | 2016-03-21 | 2016-06-15 | 安徽未名生物环保有限公司 | Solid-liquid-gas three-state cooperative garbage pyrolysis treatment system |
| CN105737166A (en) * | 2016-03-21 | 2016-07-06 | 安徽未名生物环保有限公司 | Circulation control system for pyrolysis gasifier |
-
2017
- 2017-07-19 CN CN201710591348.6A patent/CN107461747A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201772465U (en) * | 2010-09-08 | 2011-03-23 | 安徽海螺川崎节能设备制造有限公司 | Refuse burning device |
| CN104501172A (en) * | 2014-12-22 | 2015-04-08 | 危朝东 | Organic solid waste gasification treatment device |
| CN104501171A (en) * | 2014-12-24 | 2015-04-08 | 山东华源锅炉有限公司 | RDF (refuse derived fuel) pyrolysis and gasification system |
| CN105674280A (en) * | 2016-03-21 | 2016-06-15 | 安徽未名生物环保有限公司 | Solid-liquid-gas three-state cooperative garbage pyrolysis treatment system |
| CN105737166A (en) * | 2016-03-21 | 2016-07-06 | 安徽未名生物环保有限公司 | Circulation control system for pyrolysis gasifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580511A (en) * | 2018-04-04 | 2018-09-28 | 杭州瑞赛可环境工程有限公司 | It is a kind of to utilize ultrasound-enhanced organic waste pyrolytic gasification equipment |
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Application publication date: 20171212 |