CN106482117B - Domestic garbage pyrolysis processing method and processing device - Google Patents
Domestic garbage pyrolysis processing method and processing device Download PDFInfo
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- CN106482117B CN106482117B CN201611180718.9A CN201611180718A CN106482117B CN 106482117 B CN106482117 B CN 106482117B CN 201611180718 A CN201611180718 A CN 201611180718A CN 106482117 B CN106482117 B CN 106482117B
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- 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
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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
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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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
Abstract
The present invention seeks to provide a kind of domestic garbage pyrolysis processing method and processing device, including is added in pyrolysis installation after just picking classification processing and carries out pyrolysis processing house refuse comprising following method and step, 1）It is drying rubbish that classification house refuse, which is placed in drying in pyrolysis installation,；2）Drying rubbish is pyrolyzed, controls the burning of rubbish gradient temperature, forms lime-ash and mixed gas, 3）Mixed gas high-temp combustion be exhaust gas, 4）Exhaust gas is processed into tail gas；The pyrolysis installation includes pyrolysis furnace body, and the pyrolysis furnace body includes former waste layer area, rubbish baking zone, incineration firing area and mixing Flash Gas Compression Skid System；Especially the house refuse of wast rural area is effectively treated, its be by house refuse through just pick classification processing after, drying is carried out again and gradient temperature burning is carried out to rubbish, to realize the completely burned processing to residents in rural community and not can cause environmental pollution.
Description
Technical field：The present invention relates to life refuse processing method and device, especially a kind of domestic garbage pyrolysis processing
Method and device.
Background technology：With the continuous improvement of people's production and living level, requirement of the people to production and living environment
It is higher and higher.People are also more and more universal to the garbage disposal of life, and form ratio for the processing of the house refuse in city
More complete system for handling and perfect operation.
But for vast rural area, since the Regional Distribution of Population in rural area is wide, people’s lives rubbish also relatively disperses,
All the time, the people of wast rural area are the natural conditions on the periphery for being discarded in rural villages to the processing of house refuse
In environment.More since the serious lag of current residents in rural community treatment facility construction is even without treatment facility, part peasant
Environmental consciousness is again relatively poor, and many is difficult to the solid waste recycled, such as Phthalates, old and useless battery, lamp
Pipe, light bulb etc. are arbitrarily poured on the edge of a field, roadside, waterside, and many natural river courses, streams are at natural dustbin.Residents in rural community
It arbitrarily stacks and has not only occupied soil, but also as the growth place of mosquitos and flies, mouse and pathogen.Over time,
Composting is rotten, smelly and fermentation even reacts, and can not only release the gas being detrimental to health, but also rubbish
Percolate can also polluted-water and soil, and then influence agricultural product quality.In addition, some noxious materials in rubbish ooze
Leakage, such as heavy metal discard remains of pesticide etc. in pesticide bottle, and with rainwash, migration circle is more and more wider, it is likely that passes through food
Object chain threatens the health of resident.
Currently, house refuse mainly carries out rubbish by modes such as comprehensive use, sanitary landfill method, burning method and compost
Volume reduction, minimizing, recycling and harmless treatment, wherein it is the processing most common technology of house refuse to burn.House refuse
After burning disposal, efficient, stable, quick, thorough harmless treatment can be obtained.But the burning disposal applied currently on the market
The technics comparing of house refuse is complicated, and cost of investment is excessive, and handling capacity is too small, simultaneously because rubbish is still deposited during the burning process
The dioxin of some generates after burning, and existing garbage combustion device is generally gone without design specifically for dioxin
It except device, is likely to cause secondary pollution problem to environment using simple burning disposal, and builds large-scale waste incineration station
And device is difficult to carry out in vast rural area, therefore existing garbage combustion device very not applicable town ＆ country construction is answered
With.
Either fossil feedstock rubbish or organic biomass rubbish in house refuse all contain a large amount of organic matter, such as
Plastics, rubber, dry goods, stationery, vegetation, branch, food waste etc., these organic matters are all flammable.Under conditions of oxygen abundance,
Organic matter in garbage, which can directly burn, generates water and carbon dioxide, and discharges thermal energy；Hair is heated under anaerobic or anoxia condition
Raw " pyrolysis ", the chemical combination key fracture of organic compound, combustion gas, oil or the grease liquid material of small-molecular-weight are converted to by macromolecule
And coke etc..
How to provide a kind of life refuse processing method and device in rural area, enables the house refuse in rural area with most fast
Velocity interpolation minimizing, it is innoxious, will not when will be because of waste incineration caused by the directly outer row of pernicious gas, especially dioxin
To the problem of causing secondary pollution to environment in atmospheric environment, i.e., free of contamination processing method and device.There is provided one kind can incite somebody to action
The house refuse of wast rural area is burnt and is pyrolyzed, and can thoroughly be killed the bacterium in rubbish, virus, and the ammonia with stench
Gas and organic exhaust gas are by pyrolytic, and pyrolysis temperature is up to 850 DEG C or more, while the hot gas risen is absorbed by the wet refuse on upper layer,
Upper layer rubbish to be dried, a large amount of steam are generated, the dust and poisonous and harmful substance being pyrolyzed in the hot gas of generation are adsorbed by upper layer rubbish,
It is again introduced into pyrolytic layer and carries out second decomposition, while being designed with emission-control equipment again, the tail gas of discharge is made to be discharged from top
Flue gas is free of any dioxin and pernicious gas, can reach national emission request, not pollute generation.Make house refuse
It can be with most fast velocity interpolation minimizing, innoxious, free of contamination purpose residents in rural community processing method and device.
Invention content：The present invention seeks to overcome disadvantages mentioned above, in view of the deficiencies of the prior art, provides a kind of house refuse
Pyrolysis treating method and device are especially effectively treated the house refuse of wast rural area, are that house refuse warp is first
It after picking classification processing, then carries out drying and gradient temperature burning is carried out to rubbish, to realize to the complete of residents in rural community
Burning handles and will not cause secondary pollution to environment.
A kind of domestic garbage pyrolysis processing method of the purpose of the present invention, including by house refuse after just picking classification processing,
It is added in pyrolysis installation and carries out pyrolysis processing comprising following method and step, 1）Classification house refuse is placed in pyrolysis installation
Drying is drying rubbish；2）Drying rubbish is pyrolyzed, controls the burning of rubbish gradient temperature, forms lime-ash and mixed gas,
3）Mixed gas through plasma gasification high-temp combustion in plasma gasification device be exhaust gas, 4）Exhaust gas is handled through gas-liquid processing device
For tail gas, tail gas recycles fertilizer processed through arranging or being back to pyrolysis installation, lime-ash outside exhaust pipe.
A kind of domestic garbage pyrolysis processing method of the present invention, 2）It includes nothing to walk the rubbish gradient temperature burning
Oxygen burns and oxy combustion, and the burning velocity for controlling oxy combustion is 3.2-3.8 kg/min, control oxy combustion temperature 850-
1200 DEG C, control oxy combustion rubbish layer thickness is 10-15cm.
A kind of domestic garbage pyrolysis processing method of the present invention, 3）It is medium that step controls the plasma gasification device
Ion gasification high-temp combustion temperature is 1200-1600 DEG C.
A kind of further domestic garbage pyrolysis processing method, 4）It walks and is equipped with fat in the gas-liquid processing device
Soluble solution.
Another object of the present invention is a kind of realize described in domestic garbage pyrolysis processing method device, including refuse pyrolysis
Device and the exhaust pipe on refuse pyrolysis plant, the pyrolysis installation include pyrolysis furnace body, and the pyrolysis furnace body includes
Former waste layer area, rubbish baking zone, incineration firing area and mixing Flash Gas Compression Skid System；Hold equipped with gaseous mixture in the top of pyrolysis furnace body
Na Qu, lower part are equipped with area of cinder chamber, and the gaseous mixture receiving area is connected to mixing Flash Gas Compression Skid System by connecting tube；The rubbish
Combustion zone includes oxygen-enriched combusting floor area and anoxycausis floor area.
Device of the present invention, the preferably described mixing Flash Gas Compression Skid System include that exhaust gas delays reservoir, plasma gasification room；It is described
Exhaust gas delays the gaseous mixture receiving area that reservoir top is communicated in through connecting tube connection plasma gasification room lower part on pyrolysis furnace body；It is described
It is equipped with plasma gasification device in plasma gasification room, offgas duct is connected on plasma gasification room, the outlet end of offgas duct connects
It is connected to exhaust pipe.
Device of the present invention is additionally provided with solar energy rubbish drying unit, the sun on the preferably described pyrolysis furnace body
Energy rubbish drying unit includes solar thermal collector, drying box, circulation canal and cycle carrier, is recycled in being equipped in drying box
Drying pipe, cycle drying pipe are connected to heating tube and product heat cal rod, and the other end of heating tube and product heat cal rod is connected to too
On positive energy heat collector, circulation canal is set in drying box.
Device of the present invention, the further smoke exhaust pipe are equipped with gas-liquid processing device, the gas-liquid processing device
It is interior to be equipped with fat-soluble solution；Gas-liquid processing device connects offgas duct outlet end.
The inner cavity of device of the present invention, the preferably described pyrolysis furnace body is equipped with several and described former waste layer area, and rubbish dries
Dry area, the corresponding fire grate floor in incineration firing area, the fire grate layer are inverted trapezoidal structure, and the long side of trapezium structure is connected to pyrolysis
On inboard wall of furnace body face.
The plasma gasification room of described device, the mixing Flash Gas Compression Skid System is connected to the gas-liquid of exhaust pipe through offgas duct
Processor is connected to through connecting tube reflux on pyrolysis furnace body.
Its further described plasma gasification device of the present invention uses plasma gasification torch.
The present invention uses the above method and device, has the advantages that, realizes the cleaning to residents in rural community
Production, small investment, takes up an area province, is reliable for operation, the principle that management is convenient, expense is low at comprehensive utilization；
The method of the present invention and device, according to wanting for the related legislations of environmental protection of country and environmental protection administrations at different levels and discharge standard
It asks and is handled and run, the generation and discharge of dioxin in combustion process can especially be greatly reduced, and realize throwing
Money is few, and operating cost is low, manages convenient principle；The actual conditions of especially wast rural area are required to be integrated according to owner
Consider, reduces the garbage decrement after the discharge capacity of rural garbage, and pyrolysis；The processing method technical equipment operation of the present invention can
By the stable operation with refuse pyrolysis；The unification for focusing on environment, economic and social benefit is realized, is meeting technological operation and is reaching
Under conditions of mark discharge, occupation of land and construction investment are reduced to the greatest extent, and save operating cost.
In the house refuse in vast rural area, the present invention is first simply to be divided the house refuse collected from various regions
Class first classifies the waste in house refuse that is recoverable or cannot directly burning recycling, then will be suitble into
The house refuse of row burning disposal, such as either fossil feedstock rubbish or organic biomass rubbish all contain largely organic
Object, such as plastics, rubber, dry goods, stationery, vegetation, branch, food waste, these organic matters are all flammable.In the item of oxygen abundance
Under part, organic matter in garbage, which can directly burn, generates water and carbon dioxide, and discharges thermal energy；Add under anaerobic or anoxia condition
" pyrolysis " occurs for heat, and the chemical combination key of organic compound is broken, be converted to by macromolecule the mixed gas of small-molecular-weight combustion gas,
Oil or grease liquid material and coke etc..
The method of the present invention and pyrolysis furnace apparatus chamber structure are reasonable, improve burning in stove, pyrolysis, drying, filtering rod
Part realizes house refuse completely burned in the case where ensuring coefficient of excess air close to 1, ignition temperature up to 850 DEG C with
On, to effectively reduce the generation of dioxin predecessor.
The method of the present invention is the gradient distributed combustion for taking measures to control the ignition temperature in stove simultaneously, and is effectively extended
Burning residence time of the house refuse in pyrolysis oven body up to 3 days or more, ensure that mixed gas i.e. flue gas in pyrolysis oven body
Down to 0.006m/s, about equivalent 0.37m/min, flue gas is slowly spread the rate of climb in uphill process, dust by abundant absorption,
Filtering.And the PCDD/Fs generated in the pyrolysis oven body of device is mainly attached to the surface of dust in solid form, dioxin
Measure it is extremely low, even if in the case of chimney does not do any purified treatment, dioxin concentration is below 1.2 ng-TEQ/Nm3。
By the burning and pyrolysis of the method for the present invention, bacterium in rubbish, virus are thoroughly killed, the ammonia with stench and
Organic exhaust gas is by pyrolytic, and pyrolysis temperature is up to 850 DEG C or more, while the hot gas risen is absorbed by the wet refuse on upper layer, drying
Upper layer rubbish generates a large amount of steam, and the dust and poisonous and harmful substance being pyrolyzed in the hot gas of generation are adsorbed by upper layer rubbish, again
Second decomposition is carried out into pyrolytic layer, and mixing Flash Gas Compression Skid System is additionally provided on pyrolysis furnace body, is mixed caused by pyrolysis
High-temp combustion temperature of the gas combustion gas through its plasma of the high temperature burning handling of plasma gasification device of mixing Flash Gas Compression Skid System can
Reach 1200 DEG C or more, can fully be burnt to gaseous mixture, especially to containing dioxin gas decomposition combustion, can be incited somebody to action
The completely burned of ingredient containing dioxin gas is simultaneously removed, and has been understood at 1200 DEG C or more according to the chemical property of dioxin
Pyrolysis entirely, also a small amount of toxic and harmful gas not decomposed thoroughly are then directly arranged after gas-liquid processing device absorption processing again
It puts, or is back in pyrolysis oven body by connecting tube and is mixed into the further burning of row with air, realize harmless emission, institute
It can reach national emission request with the flue gas being discharged from top, not pollute generation.And the dust generated in being pyrolyzed is constantly poly-
Collection, forms lime-ash, and poisonous and harmful substance is thoroughly decomposed, therefore pyrolytic process method using the present invention through repeatedly pyrolysis
And device processing garbage energy is with most fast velocity interpolation minimizing, innoxious, free of contamination purpose.
Description of the drawings：Fig. 1 is a kind of structural schematic diagram of embodiment of apparatus of the present invention；
Fig. 2 is the structural schematic diagram of another embodiment of the present invention；
Fig. 3, for the structural schematic diagram of the solar energy rubbish drying unit of the present invention；
Fig. 4 is the cross-sectional view of I gas-liquid processing device 10 in Fig. 1；
Fig. 5 is the cross-sectional view of the furnace wall body of II pyrolysis furnace body 1 in Fig. 1,2；
In figure, 1, pyrolysis furnace body, 2, plasma gasification room, 3, exhaust gas delay reservoir, 4, offgas duct, 5, plasma (orifice) gas makeup
Set, 6, wind turbine divide air-valve, 7,701, control valve, 8, oxygen-enriched combusting floor area, 9, anoxycausis floor area, 10, gas-liquid processing device,
11, solar energy rubbish drying unit, 12, ash discharge cinder notch, 13, area of cinder chamber, 14, gaseous mixture accommodating chamber, 15, garbage inlet, 16,
Exhaust pipe, 17, wind turbine, 18, drying garbage inlet, 19 former waste layer areas, 20, rubbish baking zone, 21, solar thermal collector,
22, heating tube, 23, product heat cal rod, 24, drying box, 25, exhaust blower, 26, cycle drying pipe, 27, cycle carrier, 28, cycle it is logical
Road, 29, drying rubbish, 30, fat-soluble solution, 31, groove pond, 32, slot cover body, 33, through-hole, 34, furnace outer wall layer, 35, in stove
Parietal layer, 36, insulating layer, 37, trapezoidal fire grate, 38, trapezoidal fire grate long side, 39, detection mouth, 40, wind branch pipe, 41, lime-ash grate,
42, pyramid device, 43, high temperature resistant protective layer, 44, guardrail.
Specific implementation mode：The present invention is described in further detail With reference to embodiment.
It will be helpful to further understand the present invention by following embodiments, but do not limit present disclosure.
A kind of domestic garbage pyrolysis processing method of the present invention, including by house refuse after just picking classification processing,
The house refuse that waste incineration mode should not be used to handle of recoverable is proposed through simple classification, and for major part
A kind of such as organic biomass garbage that can carry out waste incineration, containing a large amount of organic matter, such as plastics, rubber, dry goods, paper
Class, vegetation, branch, food waste etc.；It is added in pyrolysis installation and carries out pyrolysis processing, be specially to include following method and step, 1）It will divide
It is drying rubbish that class house refuse, which is placed in drying in pyrolysis installation, and the drying course of house refuse can be direct by rubbish to be dried
It is placed in pyrolysis furnace body or is added to it in pyrolysis oven body device after solar energy rubbish drying unit is dried；2）
Drying rubbish is pyrolyzed, controls the burning of rubbish gradient temperature, lime-ash is formed and mixed gas, lime-ash falls into cinder chamber and mix
It closes gas and is upwardly into gaseous mixture accommodating chamber, the rubbish gradient temperature burning includes oxy combustion and anoxycausis, general
The top that oxy combustion is located at the lower part for being pyrolyzed furnace body and anoxycausis is then located at pyrolysis furnace body is controlled, i.e. anoxycausis is located at and has
The top of oxygen burning, and the burning velocity for drying rubbish oxy combustion is controlled in 3.2-3.8 kg/min generally in 3.3 kg/
Min, while oxy combustion temperature is controlled at 850 DEG C so that up to 1200 DEG C, general control is at 900 DEG C, left and right, and controls guarantor
The rubbish layer thickness of oxy combustion is held in 10-15cm, it is made to be combined one with the speed of generated mixed gas with burning
It causes；3）Mixed gas is exhaust gas through plasma gasification high-temp combustion in plasma gasification device, is by mixed gas plasma
Gasification installation high-temp combustion control ignition temperature can have at 1200 DEG C up to 1600 DEG C, to be generally controlled at 1200 DEG C or more
What is imitated makes the dioxin generated in mixed gas during incineration firing effectively decompose, in this way can effectively save energy reduction
Operating cost, 4）Exhaust gas through the fat-soluble solution in gas-liquid processing device to it is remaining in exhaust gas may include dioxin on a small quantity
Gas be further processed as tail gas, this is mainly dissolved in the chemical property of fat-soluble solution using dioxin, pair can
It is tail gas that the dioxin gas that can be generated, which carries out processing, and last tail gas is returned through arranging or being back to pyrolysis installation, lime-ash outside exhaust pipe
Receipts fertilizer.The processing of the above method through the invention, burning residence time of the house refuse in pyrolysis oven body was up to 3 days
More than, to which house refuse to be carried out to effective and innoxious processing.
Embodiment 1：
As shown in Figure 1, the configuration diagram of the device of one embodiment of the present invention, pyrolysis furnace body 1 is cylindrical structure,
Its burner hearth cavity is cylindrical bulbous shape structure, and bottom is circular-arc bottom face structure, and area of cinder chamber 13 is set in the lower part of pyrolysis furnace body 1, in
It is located at area of cinder chamber 13 on the body of furnace wall and is equipped with ash discharge cinder notch 12,1 top of pyrolysis furnace body sets arc-shaped roof construction, on arc-shaped top
Equipped with exhaust pipe 16, it is equipped with gas-liquid processing device 10 on the exhaust pipe 16；The inner cavity of the pyrolysis furnace body 1 is set successively from top to down
There are gaseous mixture receiving area i.e. gaseous mixture accommodating chamber 14, former waste layer area 19, rubbish baking zone 20 and incineration firing area and cinder chamber
Area 13, the incineration firing area include oxygen-enriched combusting floor area 8, anoxycausis floor area 9；In former waste layer area 19, rubbish baking zone
20 and incineration firing area anoxycausis floor area 9 each floor between be respectively provided with a trapezoidal fire grate 37 respectively, trapezoidal fire grate 37
The both ends of trapezoidal fire grate long side 38 are fixed respectively to be connected on the inner cavity wall surface of pyrolysis furnace body 1, and the trapezoidal fire grate 37 is
High temperature resistant, corrosion resistant wolfram steel plate construction；It is respectively equipped with detection mouth 39 in the top of pyrolysis furnace body 1, and at the top of it then also
Equipped with garbage inlet 15.
It is equipped with mixing Flash Gas Compression Skid System in 1 top of pyrolysis furnace body, the mixing Flash Gas Compression Skid System includes the slow storage of exhaust gas
Room 3, plasma gasification device 5, the plasma gasification device 5 described in the present embodiment are plasma gasification torch, and exhaust gas delays reservoir 3
Lower part is connected to the gaseous mixture accommodating chamber 14 on 1 top of pyrolysis furnace body through connecting tube, and top is then communicated on plasma gasification room 2,
Be equipped with plasma gasification device 5 in the plasma gasification room 2, plasma gasification room 2 is equipped with offgas duct 4, offgas duct 4 it is another
End is connected on the gas-liquid processing device 10 of exhaust pipe 16.Wind turbine 17 divides air-valve 6 to be connected to heat through air hose and control valve 7 through wind turbine
Solve the incineration firing area of 1 lower part of furnace body.
In being respectively equipped with pyramid device in the oxygen-enriched combusting floor area 8 and anoxycausis floor area 9 in the incineration firing area
42, the pyramid device is that pyramid structure is made by high temperature resistant, corrosion resistant wolfram steel plank.It is convenient for rubbish to fire in this way
The exchange of hot and cold gas when burning is circulated, and facilitates the gradient temperature burning velocity etc. of control rubbish；Simultaneously in pyrolysis furnace body 1
Inner cavity wall surface is equipped with high temperature resistant protective layer 43；And it is located on 15 end face of garbage inlet at the top of pyrolysis furnace body 1 and sets guardrail 44
As safety in production protective fence.
As shown in Fig. 4 the diagrammatic cross-section of I gas-liquid processing device 10 being located on exhaust pipe 16 in Fig. 1,
The gas-liquid processing device 10 that exhaust pipe 16 of the present invention is equipped with, the gas-liquid processing device 10 include groove pond 31, in
The top in groove pond 31 is equipped with the slot cover body 32 to match with groove pond 31, and fat-soluble solution 30 is equipped in groove pond 31, and
Slot cover body 32 is equally set as concaveconvex structure corresponding with groove pond 31, and concaveconvex structure is located in the fat-soluble molten of groove pond 31
Cover body structure in liquid 30 is equipped with through-hole 33, and the through-hole 33 is located in fat-soluble solution 30, to facilitate giving up after processing
Gas is discharged；One end of offgas duct 4 is connected on groove pond 31, to realize the mixed gas being discharged from offgas duct 4 again through gas-liquid
Just outer row, the purpose for being similarly designed with fat-soluble solution 30 are to because of pyrolysis after fat-soluble solution 30 in processing unit 10 is handled
Dioxin gas is remained caused by the burning of furnace body device, the characteristic of fat-soluble solution 30 is soluble in using dioxin, two are disliked
Heroic spirit body thoroughly removes, and ensure that the innoxious discharge of burner production of the present invention.
As shown in figure 5, the structural schematic diagram of the furnace wall body of pyrolysis furnace body 1 of the present invention, furnace wall body packet of the invention
Furnace outer wall layer 34, stove inner wall layer 35 and insulating layer 36 are included, the furnace outer wall layer 34 is designed as the outer wall layers of brick or concrete layer structure,
The stove inner wall layer 35 be high temperature resistant, resistant material flame retardant coating；Insulating layer 36 is insulating layer made of heat-resisting material, together
When pyrolysis furnace body 1 inner cavity wall surface on stove inner wall layer 35 on be equipped with high temperature resistant protective layer 43.
Embodiment 2：
As shown in Fig. 2, being another embodiment of the present invention, 1 inner cavity of pyrolysis furnace body is equipped with mixed successively from top to down
It includes oxygen-enriched combusting floor area 8, anoxycausis to close gas accommodating chamber 14 and incineration firing area and area of cinder chamber 13, the incineration firing area
Floor area 9；It respectively sets a fire grate respectively between oxygen-enriched combusting floor area 8 and anoxycausis floor area 9 and area of cinder chamber 13, and is set to anaerobic
Fire grate in burning zone area 9 can be set as trapezoidal fire grate 37, and in incineration firing area anoxycausis floor area 9 top pyrolysis oven
The furnace body wall of body 1 is equipped with drying garbage inlet 18, and solar drying device 11 is connected on garbage inlet 18 in drying,
As shown in figure 3, the solar drying device 11 includes solar thermal collector 21, and heating tube 22, product heat cal rod 23, drying box 24,
Cycle drying pipe 26, cycle carrier 27, circulation canal 28；One end of heating tube 22 is connected on solar thermal collector 21,
Cycle drying pipe 26 and circulation canal 28 are set in drying box 24, the other end of heating tube 22 is connected to cycle drying pipe 26, and returns
One end of heat pipe 23 is connected to cycle drying 26 other end of pipe and is then connected to solar thermal collector 21, and cycle carrier 27 will dry
Drying rubbish 29 in case 24 delivers into the inner cavity to pyrolysis furnace body 1 from drying garbage inlet 18.With 1 implementation of embodiment
Mode is equipped with mixing Flash Gas Compression Skid System on the top of pyrolysis furnace body 1, but does not set gas-liquid processing device on the exhaust pipe 16, in pyrolysis
The top of furnace body 1 is equipped with detection mouth 39 in favor of detecting and controlling rubbish gradient temperature burning velocity.Wind turbine 17 connects wind turbine point
Air-valve 6, offgas duct 4 is connected to wind turbine through a branch pipe and divides on air-valve 6, and is connected on exhaust pipe 16 through another branch pipe, either
The exhaust gas that offgas duct 4 is discharged is directed out into discharge.Wind turbine divides air-valve 6 to be connected to pyrolysis oven through the connecting tube equipped with control valve 7
The anoxycausis floor area 9 of body 1, and the oxygen-enriched combusting floor area 8 of pyrolysis furnace body 1 is connected to through another wind branch pipe 40, in wind branch pipe 40
On set control valve 701.After the rubbish of the present embodiment burning is sorting, be readily burned type and harmful, toxic gas not will produce
Can be directly entered after the drying of solar drying device 11 combustion zone, stationery, vegetation, branch, rubbish such as food waste etc..
Specifically the pyrolysis and combustion course of work is：
By house refuse to be treated after preliminary sorting, directly from 1 top of pyrolysis furnace body of pyrolysis treatment device
Garbage inlet 15 disposably pours into the inner cavity of pyrolysis furnace body 1,1 scheme of embodiment；Either by the rubbish after sorting through the sun
The inner cavity for being pyrolyzed furnace body 1 can be added to by the drying garbage inlet 18 set on 1 side of pyrolysis furnace body after the drying of drying unit 11
It is interior.Such as 5 tons of house refuse is put into daily, disposable to put into, about 1.5 meters of thickness.The house refuse of former waste layer slowly under
It is heavy, carry out the processes such as last heat exchange, absorption with the flue gas moved upwards；Drying layer is dried i.e. through about 600 DEG C
Heat smoke carries out diabatic process with baking zone house refuse, and the moisture content in house refuse is mainly gasificated into vapor, lives
Rubbish is warming up to 200 DEG C or more from 100 DEG C or less, and flue-gas temperature drops to 150 DEG C from about 600 DEG C.The thickness of feed layer of rubbish at this time
Control is in about 2.5m；It burns through anaerobic pyrolysis floor subsequently into the burning of burning zone area, the high-temperature flue gas that oxy combustion layer generates
Carry out quick diabatic process with the house refuse of anaerobic pyrolysis layer, a part be heat directly radiate, a part be flue gas and
Rubbish conducts heat.Pyrolytic layer house refuse part is pyrolyzed, and it is gaseous mixture to generate coke, tar and some combustible gases.Due to aerobic
The quantity combusted of burning zone is very small, and pyrolysis needs to absorb amount of heat, and pyrolytic layer is rapidly heated to 400 DEG C or more, flue gas
Temperature drops to 600 DEG C or less；A small amount of thermal decomposition product is directly with the burning zone that is moved downwardly into of rubbish, pyrolytic layer temperature of lower
About 700 DEG C, about 400 DEG C of upper temp, control rubbish thickness of feed layer is about 0.5m.For house refuse, the heat in entire furnace body
Solution stove is in anaerobic condition, but for the house refuse of oxy combustion layer, then is in combustion state, and house refuse is fully fired
It burns.The burning velocity of rubbish is controlled in 850 DEG C of about 3.3kg/min and oxy combustion layer temperature or more, and the thickness of rubbish is about
10cm, burn in this way caused by mixed gas and gas-liquid processing device match processing, while controlling burning gases and being not
It is unprocessed directly to drain into atmospheric environment outside.It is generated after the oxy combustion floor area 8 of experience and anoxycausis floor area 9 burn
Cinder is entered in area of cinder chamber 13 and is discharged from ash discharge cinder notch 12 for making organic fertilizer.And house refuse after burning because generating
Mixed gas harmless components are less or without then directly discharge outward after testing for aggregation in the gaseous mixture accommodating chamber 14.And work as
When detecting that pernicious gas content is higher in mixed gas composition, then by the mixed gas through plasma gasification device 5 it is equal from
Son gasification torch is that exhaust gas controls its ignition temperature more than 1200 DEG C or more, then by generation into plasma gasification high-temp combustion
It is tail gas that exhaust gas is handled through gas-liquid processing device 10, and tail gas is handled in this way through arranging or being back to pyrolysis installation outside exhaust pipe 16
Purpose is mainly to contain dioxin gas in the exhaust gas for prevent outer row, to prevent the secondary pollution to environment, because of dioxin
Gas will be decomposed in 1200 DEG C or more of high temperature, be to prevent depositing for also minimal amount of dioxin gas after pyrolytic
, then the fat-soluble solution absorption for including through gas-liquid processing device 10, this is produced during just thoroughly eliminating incineration firing
Raw pernicious gas.
The generated gaseous mixture after being handled the house refuse burning in rural area with device using the combustion method of the present invention
Its each main component contained is N to body after testing2Accounting 47.28%, similarly hereinafter, CO, 25.08%, CO2, 5.36%, H2, 17.08%,
CH4, 4.07%, HCl, 0.18%, remaining includes the equal pernicious gases of hydrogen sulfide, sulfur dioxide and dioxin.Through above-mentioned side
Method is completely removed with pernicious gas after device processing.
The foregoing is merely the preferred embodiments of the invention oneself, but not intended to limit the scope of the present invention, all ripe
Know skilled person, with the present invention principle and technical characteristic, made by various changes and decoration, should all be covered by this right
Within the protection category that claim is defined.
Claims (6)
1. a kind of domestic garbage pyrolysis processing method, including house refuse is added after just picking classification processing in pyrolysis installation
Pyrolysis processing is carried out, it is characterized in that including following method and step, 1）It is baking that classification house refuse, which is placed in drying in pyrolysis installation,
Dry rubbish；2）Drying rubbish is pyrolyzed, controls the burning of rubbish gradient temperature, forms lime-ash and mixed gas, 3）Gaseous mixture
Body through plasma gasification high-temp combustion in plasma gasification device be exhaust gas, 4）It is tail gas that exhaust gas is handled through gas-liquid processing device,
Tail gas recycles fertilizer processed through arranging or being back to pyrolysis installation, lime-ash outside exhaust pipe；
2）It includes anoxycausis and oxy combustion to walk the rubbish gradient temperature burning, controls incineration firing speed when oxy combustion
Degree is 3.2-3.8 kg/min, and 850-1200 DEG C of control oxy combustion temperature, control oxy combustion rubbish layer thickness is 10-
15cm；
3）It is 1200-1600 DEG C that step, which controls plasma gasification high-temp combustion temperature in the plasma gasification device,.
2. a kind of domestic garbage pyrolysis processing method according to claim 1, it is characterized in that 4）Walk the gas-liquid processing dress
Fat-soluble solution is equipped in setting.
3. a kind of device for realizing domestic garbage pyrolysis processing method described in claim 1, including refuse pyrolysis plant and set
In the exhaust pipe on refuse pyrolysis plant, it is characterized in that the pyrolysis installation includes pyrolysis furnace body, the pyrolysis furnace body includes original
Waste layer area, rubbish baking zone, incineration firing area and mixing Flash Gas Compression Skid System；It is accommodated equipped with gaseous mixture in the top of pyrolysis furnace body
Area, lower part are equipped with area of cinder chamber, and the gaseous mixture receiving area is connected to mixing Flash Gas Compression Skid System by connecting tube；The rubbish combustion
It includes oxygen-enriched combusting floor area and anoxycausis floor area to burn area；
The mixing Flash Gas Compression Skid System includes that exhaust gas delays reservoir, plasma gasification room；The exhaust gas delays reservoir top through connecting tube
Connection plasma gasification room lower part is communicated in the gaseous mixture receiving area on pyrolysis furnace body；Be equipped in the plasma gasification room it is equal from
Sub- gasification installation is connected with offgas duct on plasma gasification room, and the outlet end of offgas duct is connected to exhaust pipe；
Solar energy rubbish drying unit is additionally provided on the pyrolysis furnace body, the solar energy rubbish drying unit includes solar energy collection
Hot device, drying box, circulation canal and cycle carrier, in being equipped with cycle drying pipe in drying box, cycle drying pipe is separately connected
In heating tube and product heat cal rod, the other end of heating tube and product heat cal rod is connected on solar thermal collector, and circulation canal is set to
In drying box.
4. device according to claim 3, it is characterized in that the exhaust pipe is equipped with gas-liquid processing device, the gas-liquid processing
Fat-soluble solution is equipped in device；Gas-liquid processing device connects offgas duct outlet end.
5. device according to claim 3, it is characterized in that the inner cavity of the pyrolysis furnace body is equipped with several and described former waste layer
Area, rubbish baking zone, the corresponding fire grate floor in incineration firing area, the fire grate layer are inverted trapezoidal structure, the long side of trapezium structure
It is connected in pyrolysis oven body on wall surface.
6. device according to claim 3, it is characterized in that the plasma gasification room of the mixing Flash Gas Compression Skid System is through offgas duct
It is connected to the gas-liquid processor of exhaust pipe or is connected on pyrolysis furnace body through connecting tube reflux.
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