CN106949479A - The small-sized domestic garbage pyrolysis processing system of villages and small towns level - Google Patents
The small-sized domestic garbage pyrolysis processing system of villages and small towns level Download PDFInfo
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- CN106949479A CN106949479A CN201710170917.XA CN201710170917A CN106949479A CN 106949479 A CN106949479 A CN 106949479A CN 201710170917 A CN201710170917 A CN 201710170917A CN 106949479 A CN106949479 A CN 106949479A
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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
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
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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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
- F23G5/165—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber arranged at a different level
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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
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/304—Burning pyrosolids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/103—Combustion in two or more stages in separate chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/30—Halogen; Compounds thereof
- F23J2215/301—Dioxins; Furans
Abstract
The present invention relates to technical field of waste treatment, and in particular to the small-sized domestic garbage pyrolysis processing system of villages and small towns level；Pyrolysis oven including being sequentially communicated setting, sulphur removal denitration spray column, cyclone dust collectors, dioxin removal column and circulating cooling water purification pond, a combustion room is provided with the pyrolysis oven, the one combustion room is also provided with and communicated with dual firing chamber, the one combustion interior is provided with Stirring and breaks bridge mechanism, the Stirring, which breaks bridge mechanism, to be included the width wheel of middle part setting and is arranged on the push rod that lower end can down be moved, the Stirring to break and be provided with turnover plate type grate body below bridge mechanism, bipolar venturi jet aerator is provided with the dioxin removal column, the bipolar venturi jet aerator includes two bipolar Venturi tubes, the air compressor machine being connected with two bipolar Venturi tubes, pyrolytic incineration high-temperature flue gas pipeline and cooling water pipeline, the circulating cooling water purification pond is connected with the top of dioxin removal column；The present invention can simplify rubbish pre-treating technology, reduction garbage disposal cost and equipment investment, while effectively removing dioxin.
Description
Technical field
The present invention relates to technical field of waste treatment, and in particular to the small-sized domestic garbage pyrolysis processing system of villages and small towns level.
Background technology
The small-sized rubbish pyrolysis plant of current domestic market sales is broadly divided into high temperature pyrolysis, and (pyrolysis temperature is up to 550--
700 DEG C) and low temperature pyrogenation (150-400 DEG C) process equipment.This two kind equipment was promoted since 2014 in China villages and towns in rural areas
Use, it is possible to resolve residents in rural community local method, which is burned, causes serious secondary environmental pollution problem, the remote rural garbage collection of solution,
The economy problems transport, focused on, and rural garbage is simply filled the soil caused, pollution of waterhead has replacement to solve
Scheme.From the point of view of the at village level refuse pyrolysis demonstration project operational effect that various regions small towns is completed, current refuse pyrolysis technology is set
It is standby can make villages and small towns garbage decrement to a certain extent, innoxious, the rubbish that effectively treatment in situ locality is produced daily, system
Equipment pollution thing discharge aggregate level is also significantly better than local method and burned and simple landfill, and its technical indicator also form upgrading
Advantage.
But presently used villages and small towns level refuse pyrolysis equipment and the also non-mature of technology, also have many urgently to solve
Technical barrier certainly：
(1) the mechanical structure problem of the fire grate of pyrolysis oven
Seen various pyrolysis oven products are generally designed using rotary and dislocation type fire grate at present in market, this design
Deficiency is：Slag easily blocks fire grate (factor such as larger building waste, bottle, old metal rubbish, coking).Therefore, it is this
The pyrolysis oven of design need increase rubbish pre-treating technology equipment, such as refuse breaking, metal magnetic separation, building waste screening etc. work
Sequence, so as to add processing system equipment investment, garbage disposal expense, reduces the reliability and maintainability of system, shortens
Equipment failure-free operation cycle.
(2) blanking of rubbish and crane span structure problem
Current vertical pyrolysis oven generally existing burner hearth rubbish blanking not smooth and rubbish " crane span structure " problem；There is the main combustion of burner hearth
Burn section rubbish heap and press through close, ventilation is obstructed, the not prosperous problem of the intensity of a fire.Trace it to its cause：First, burner hearth is the barrel-shaped design of cylinder, several
Meter Shen burner hearth rubbish is layer upon layer of, is compacted lower section rubbish, fed oxygen from air is difficult, causes burning not prosperous, or even dead fire, cigarette
Gas upwards be also obstructed by circulation, interrupts pyrolysis energy circulation, pyrolytic reaction " dormancy "；Second, 250 DEG C or so above pyrolytic layer
Rubbish melting layer be easily formed rubbish crane span structure and make furnace combustion zone feed interruption, operation is unstable, technological parameter drastically changes.It is existing
Bridge still is broken by manpower in the method for more universal reply, that is, opens fire door and is disclosed with " make a fire rod ".
(3) scientific problem of dual firing chamber's structure
Pyrolysis oven dual firing chamber uniform " breathing " effect, can make pyrolysis gas and not completely burned off garbage decomposition combustion gas in dual firing chamber
Burn completely and make nuisance clean in dual firing chamber's pyrolytic.Due to dual firing chamber's Structure Designing Problem, some current pyrolysis
Stove product can not make all inlet charges of dual firing chamber uniform, and gas residence time is more than two seconds, and combustion zone is avoided " negative and positive "
Stove phenomenon.The oxygen-excess combustion of dual firing chamber and reducing as far as possible for vapor, can effectively improve dual firing chamber's ignition temperature and pernicious gas
Purifying rate, therefore the steam treatment technology in the oxygen-supplying technology of dual firing chamber, burner hearth is most important.
(4) pyrolysis oven flue gas emission dioxin removes problem up to standard
Current villages and small towns level small-sized rubbish pyrolysis plant not yet finds the technical method that economy removes dioxin qualified discharge.
Pyrolysis either can not all make fume emission stably reaching standard (GB18484-2014 using bag-type dust or electric precipitation《House refuse
Burn Environmental capacity standard》).A large amount of tar that low temperature pyrogenation can be produced, prevent it from using sack cleaner；And removed using electricity
Dirt device can not remove carbon monoxide and dioxin and tar cleaning is difficult；High temperature pyrolysis is using sack cleaner (to tar and water
Vapour " allergy ", is easily blocked, it is impossible to stable operation).Therefore, existing small-sized rubbish pyrolytic process and equipment make garbage disposal cost and
Energy consumption is too high, beyond the economic bearing in rural area under China at this stage development level.
The content of the invention
There is provided a kind of small-sized domestic garbage pyrolysis processing system of villages and small towns level in order to solve above-mentioned existing technical disadvantages by the present invention
The new design of system.
To achieve the above object, the present invention provides villages and small towns level small-sized domestic garbage pyrolysis processing system, including is sequentially communicated
Pyrolysis oven, sulphur removal denitration spray column, cyclone dust collectors, dioxin removal column and the circulating cooling water purification pond of setting, the heat
A combustion room is provided with solution stove, the combustion room is also provided with and communicated with dual firing chamber, and the combustion interior is provided with Stirring and broken
Bridge mechanism, the Stirring, which breaks bridge mechanism, to be included the width wheel of middle part setting and is arranged on the push rod that lower end can down be moved, institute
State and turnover plate type grate body is provided with below the broken bridge mechanism of Stirring, the venturi hot blast oxygen supplying tube passes through a combustion room oxygen supply
The Venturi tube of pipe bypass is sucked and dried a large amount of steam that layer evaporates and by steam from the gap of turnover plate type grate body
One is sent into air holes and fires room, and steam is reduced into CO+H after being contacted in the top of turnover plate type grate body with red-hot carbon particle2、CO2
+H2And methane gas, bipolar venturi jet aerator is provided with the dioxin removal column, the bipolar venturi jet exposes
Mechanism of qi includes two bipolar Venturi tubes, the air compressor machine being connected with two bipolar Venturi tubes, pyrolytic incineration high-temperature flue gas pipelines
And cooling water pipeline, the circulating cooling water purification pond is connected with the top of dioxin removal column.
The invention has the advantages that：
1st, the present invention sets turnover plate type grate body, is conducive to the larger coking block of slag removal, building waste, glass wine
Bottle, old metal slag etc. so that burner hearth will not be blocked；Rubbish pre-treating technology can be simplified simultaneously, garbage disposal cost is reduced and set
Standby investment.
2nd, Stirring is set to break bridge mechanism, the width wheel that its middle part is set can both share the weight of the full load garbage half of burner hearth
Amount, rubbish can be stirred again makes rubbish not hardened, bull pine, good permeability, while push rod can abolish rubbish crane span structure, while the mechanism
The full stove rubbish of stirring, which can also be played, makes its equally distributed effect.
3rd, annular dual firing chamber's baffling passage in the present invention in dual firing chamber has turbulent flow and cyclonic action, be conducive to oxygen with
Combustion gas is sufficiently mixed burning and the effect of spiral depositing dust.
4th, the setting of dioxin removal column of the present invention can suppress dioxin regeneration " resurrection ", and dioxin is removed so as to reach
Purpose.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the small-sized domestic garbage pyrolysis processing system general assembly drawing of villages and small towns of the present invention level；
Fig. 2 is pyrolysis oven structural representation of the present invention；
Fig. 3 is along F-F to structural representation in Fig. 2；
Fig. 4 is along K-K to cross-sectional view in Fig. 2；
Fig. 5 is dual firing chamber's structural representation；
Fig. 6 is turnover plate type grate body top view；
Fig. 7 is first layer combustor section face schematic diagram in dual firing chamber of the present invention；
Fig. 8 is bipolar venturi jet aerator mplifying structure schematic diagram in Fig. 1；
Fig. 9 be along along Fig. 2 C-C to venturi hot blast oxygen supplying tube schematic cross-section；
Figure 10 be along along Fig. 2 D-D to dual firing chamber's schematic cross-section.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, it is small that the present invention provides villages and small towns level
Type domestic garbage pyrolysis processing system, including be sequentially communicated the pyrolysis oven 3 of setting, sulphur removal denitration spray column 7, cyclone dust collectors 9,
A combustion room 31 is provided with dioxin removal column 13 and circulating cooling water purification pond 18, the pyrolysis oven, the combustion room 31 is also
It is provided with and communicated with dual firing chamber 4, the combustion room 31 and is provided with the broken bridge mechanism 2 of Stirring, the Stirring breaks bridge mechanism 2
Broken including the width wheel 201 that middle part is set with the reciprocating push rod 202 in lower end, the Stirring is arranged on below bridge mechanism
It is provided with turnover plate type grate body 5, the dioxin removal column 13 and is provided with bipolar venturi jet aerator 15, it is described double
Pole venturi jet aerator 15 includes two Venturi tubes 11, the air compressor machine 132 being connected with two bipolar Venturi tubes 11, heat
The top of solution burning high temperature fume pipeline 151 and the , bioxin removal columns of cooling water pipeline 152 is provided with heat exchanger cooling device
14.Gas is pumped into Venturi tube by second level cyclone dust collectors by air-introduced machine 10, and the bottom of dioxin removal column 13 is also associated with
Sludge self priming pump 17, the circulating cooling water purification pond is connected with the top of dioxin removal column.
The present invention operation principle be：Rubbish is lifted to the feeding mechanism 1 for being arranged on pyrolysis furnace upper end by elevator,
Rubbish is sent into pyrolysis oven by feeding mechanism 1 again, refuse pyrolysis process：First stage is the pyrolytic gasification of anaerobic condition and had
Oxygen burns, and in the indoor progress of a combustion of pyrolysis oven, room combustor 25 is fired in control one makes burning work temperature control at 700-900 DEG C
Left and right, pyrolysis temperature is controlled in 600-750 DEG C of scope, nonvolatile combustible in rubbish is burnt completely, and flammable is waved
A hair property gas part burns another part then into dual firing chamber in a combustion room, while calory burning is communicated up, makes burning zone
Pyrolytic gasification occurs for above rubbish, and the pyrolysis gas of generation enters dual firing chamber；Second stage is oxygen-excess combustion, is entered in dual firing chamber
OK, operating temperature control is at 850-1100 DEG C, and the fuel gas and primary combustion that abundant combustion refuse pyrolysis is produced are uncombusted
Combustible, this process needs introducing garbage pool fuel gas, plus hot blast oxygen supply, it is ensured that whole dual firing chamber is in peroxide shape
State, the high-temperature flue gas residence time is more than 3-4 seconds, can be fully oxidized by organic matter in pyrolysis gas, discarded object, and harmful substance is thorough
Decompose, farthest the generation of control secondary pollution, remove poisonous, pernicious gas and micro- solid thing particularly bioxin, finally
Flue gas be discharged to by chimney 12 in air；Phase III is handled for gas cleaning, and the high-temperature flue gas of pyrolysis oven discharge enters system
System flue gas purifying equipment does purified treatment.First, first stop carries out sulphur removal denitration process, and the technique is gas shower alkali cleaning work
Skill, the buck of spray can be recycled through water process.Water-washing process is also flue gas cool-down process, the spray column lower floor gas approach
Position implants air heat exchanger, and the air themperature by heat exchanger can be promoted to 300 DEG C or so, and the hot blast after heating is straight
Connect as pyrolysis oven oxygen supply source of the gas.Second station is cyclone dust removal, by two stage cyclone dedusting flue gas can be made further to slough burning
Flying dust, carbon particle, metal oxide dust.3rd station is dioxin and removal of heavy metal ions tower, at cyclone dust removal
The flue gas of reason, has been controlled at 550 DEG C to this link temperature, by the dioxin component of dual firing chamber's pyrolytic, in follow-up 350-
400 DEG C of temperature ranges more than 8 seconds times of stop can recombine dioxin, therefore the present apparatus will accomplish to make the flue gas chilling of entrance
(be cooled to less than 300 DEG C times less than 8 seconds) avoids recombining for dioxin.The present apparatus uses water as cooling medium,
Power is made of high-energy compaction air by two grades of Venturi tubes and sucks 500 DEG C of flue gases and normal temperature, water at atmospheric pressure, mixed aeration reaches cigarette
Gas quenching effect, so that the generation of dioxin is reduced, while with water heavy-metal ion removal and other dust, finally reaching flue gas
Mark discharge.The cooling water that this link is used has to pass through sewage disposal recycling, and its sewage treatment process is：Deoil+
Precipitation+coagulation+sand filtration+one-level cooling++ two grades of micro-filtration film process cooling, the sludge periodically specially treated such as removing.
In the present invention, pyrolysis body of heater is vertical, comprehensive integration：Garbage feeding mechanism, high temperature resistant refractory brick and fire resisting casting
The compound integrated delay high-temp combustion dual firing chamber of burner hearth, fluid pressure type turnover panel grate body, triple channel Zigzag type, rotation of building by laying bricks or stones of material stirs
Mix brokenly bridge mechanism, rubbish evaporation steam venturi aspirating mechanism, secondary combustion chamber's wind sector.It is pyrolyzed body of heater compact to design,
Pattern shows unique characteristics, the particular topology of each functional entity, comprehensively mix together manufacture, transport, operation, safeguard manufacturability, economy,
The Considerations such as convenience, the technological innovation scheme that the above-mentioned common fault aiming at current small-sized pyrolysis oven is proposed.
Set Stirring to break bridge mechanism in pyrolysis oven, the rubbish in burner hearth can be made uniformly to dry and sent with orderly sinking
Material.In order to avoid waste density is excessive in stove, Stirring breaks bridge mechanism band spoked wheel, and width wheel is actually by rubbish in burner hearth point
Into two parts up and down, garbage weight thereon is on the one hand shared, mitigates lower furnace portion rubbish pressure, rubbish is stirred again, rubbish is pushed
Rubbish, so as to improve the ventilation condition of rubbish and the mechanical forces of rubbish crane span structure and coking are abolished in generation；Vertical furnace chamber is avoided to be filled
Whole garbage weights concentrate and act on fire grate garbage areas nearby, cause lower floor's rubbish airtight, influence lower floor rubbish combustion
Burn and pyrolysis efficiency, it is necessary to share whole garbage weights that lower floor's rubbish is born, it is saturating that apolegamy and adjustment refuse pyrolysis are adapted to
Gas, so as to improve the pyrolytic process parameter and combustibility of rubbish.Therefore, crushed under the rotary type garbage stirring of this patent design
The width wheel assembled in the middle part of bridge mechanism and mechanism can both share the weight of the full load garbage half of burner hearth, and rubbish can be stirred again makes rubbish
It is not hardened, bull pine, good permeability.Lower section rubbish is both rotatably stirred with the coaxial mounted push rod of mechanism axis sleeve pipe, again may be used
Rubbish is pressed downward under the thrust of top hydraulic cylinder piston, the purpose for abolishing rubbish crane span structure is reached, while the mechanism is also
The full stove rubbish of stirring, which can be played, makes its equally distributed effect.Pyrolysis furnace bottom is provided with ash bucket 19 and venturi hot blast oxygen supplying tube
6,
Turnover panel grate body is fluid pressure type structure, and it is arranged on lower furnace portion, complete burning zone end, the turnover plate type stove
Row mechanism one end is provided with and communicated with fire grate cooling ajutage 26, and the turnover plate type grate body includes hydraulic piston 51, linkage and connected
Bar 52, stainless rotating steel shaft 53 and cast iron turnover panel 54, the hydraulic piston are connected with linkage connecting rod, the linkage connecting rod and stainless steel
Axis of rotation is connected, and the cast iron turnover panel is hinged and is threadedly coupled with stainless rotating steel shaft.Fire grate opening degree, can up to 0-120 degree
± 60 ° of rocking actions, are conducive to the larger coking block of slag removal, building waste, glass wine bottle, old metal slag etc. so that stove
Thorax will not be blocked.It can also ensure that fire grate temperature is less than material temperature by air cooling system, maintain the mechanical strength of fire grate.Heat
Pressure fan and air-introduced machine are by frequency control in solution stove running, and air quantity adjusting range can ensure that the air quantity of pyrolytic incineration is needed
Ask, can guarantee that system is in negative pressure state again, not back-fire, it is to avoid flue gas is escaped.Therefore, turnover panel grate body can simplify before rubbish
Handling process.The fire grate performance is better than dislocation type and rotary grate, it is possible to decrease garbage disposal cost and equipment investment.Its is air-cooled
Cooling body can both reduce fire grate operating temperature, and can cool down wind by multi-angle again improves oxygen supply condition around fire grate, helps one
Fire the burning of room good ventilation.
Pyrolysis oven bottom is provided with peep hole 302, fire door 303, the combustion section 304 of burner hearth one, pyrolysis oven to be divided into from top to bottom
Drying layer 21, pyrolytic gasification layer 22, burning zone 23 and burning layer 24, the Stirring break bridge mechanism and are arranged on burning zone and heat
Gasification layer is solved, the turnover plate type grate body is arranged on burning zone lower end, and the burning layer ash bucket is communicated with the confession of venturi hot blast
Oxygen pipe 6.The drying garbage layer of pyrolysis oven upper furnace can evaporate a large amount of steam, and steam, which flows downward, can reduce pyrolysis section (gasification
Layer) and dual firing chamber's operating temperature, the programming rate characteristic curve of influence decision pyrolysis generation product component, cause tar in flue gas
Content increase, is unfavorable for system gas cleaning.Therefore this patent design venturi aspirating mechanism, utilizes the oxygen supply of body of heater burning layer
Pipe aerodynamic energy suction upper furnace steam and from fire grate gap be sent into one fire room, steam above fire grate with red-hot carbon
Grain contact, is reduced into CO+H2And CO2+H2And methane gas, at this moment the water produced vapour of rubbish transforms into water-gas and high heating value fires
Gas, makes various thermal chemical reactions above and below burner hearth reach dynamic equilibrium and be carried out continuously, so as to dissolve steam to pyrolytic process
Detrimental effect.
The dual firing chamber and pyrolysis oven furnace integrated setting, the dual firing chamber include three independent units, each unit
Including first layer combustion chamber 41 and second layer combustion chamber 42, the first layer combustion chamber includes connecting set first with a combustion room
Air inlet 43, the second layer combustion chamber includes the second air inlet 44 and outlet flue 45 set with first layer combustion chamber,
Pyrolysis oven is additionally provided with pyrolysis gas appendix 27.Dual firing chamber 4 is also associated with dual firing chamber's combustor 27 and dual firing chamber's burning frame 28,
First air inlet and the second air inlet non-corresponding stagger setting, and such gas can form the type of flow of annular in dual firing chamber.Institute
State first layer combustion chamber and the second combustion chamber and be provided with dual firing chamber's oxygen supplying tube 200, it is ensured that combustible gas can peroxide combustion in dual firing chamber
Burn.The layout of dual firing chamber use with burner hearth integral structure, be so conducive to thermal balance.In order that burner hearth interior air-flow and temperature are equal
, there is " negative and positive " imbalance, dual firing chamber is designed as three independent lists by this patent in weighing apparatus, it is to avoid hearth combustion and the unilateral progress of pyrolysis
Member.Dual firing chamber's baffle pipe 301 is provided with dual firing chamber, each unit uses deflector type two-layer structure so that dual firing chamber's gas combustion
Burn center path length and reach 240 degree of arc length, its section and length can ensure burning delay up to more than four seconds.Dual firing chamber is provided with
Two layers of oxygen supplying tube up and down, it is ensured that combustible gas energy oxygen-excess combustion.For pyrolytic harmful substance, first layer combustion chamber is also equipped with temperature
Sensor (not shown) and combustor 27 are spent, when dual firing chamber's ignition temperature is less than 850 DEG C, system automatic control combustion machine work
Make, so that dual firing chamber's ignition temperature control is in 850--1100 DEG C of scope.Ensure that dual firing chamber's operating temperature maintains 850-1100
DEG C scope, each dual firing chamber front portion is additionally provided with combustor and is provided with temperature measuring equipment and temperature sensor in dual firing chamber stage casing.Annular
Dual firing chamber's baffling passage also has turbulent flow and cyclonic action, is conducive to oxygen to be sufficiently mixed burning and spiral depositing dust work with combustion gas
With.
The basic theories that the present invention is recombined according to dioxin, the new technological process of research and development and equipment, the skill solved
Art problem is flue gas chilling is avoided the environmental condition that dioxin is lived again, and its purpose for regenerating " resurrection " is suppressed so as to reach.Water
It is a kind of higher excellent cooling medium of thermal capacity, it is contacted with high-temperature flue gas, flue gas institute heat content can be absorbed quickly, but such as
Flue gas bubble is excessive, and contact angle is too small, and flue gas will depart from the water surface rapidly, and the flue gas exchange rate of bubble center will be stagnant
Afterwards.So, to reach and rapidly cool down, it is necessary to make in water that flue gas bubble is small, contact angle is larger, can be only achieved rapidly cooling effect
Really.This patent selection jet Aeration Technology and It can reach the abundant contact heat-exchanging requirement of flue gas microvesicle and water.This patent is researched and developed for this
Go out bipolar venturi jet aerator, it can be solved, and flue gas pressures are low, kinetic energy is not enough, are difficult to meet jet-flow aeration condition of work
Problem.
Include the first extremely other pipe with the connect setting of pyrolytic incineration high-temperature flue gas pipeline 151 in the bipolar Venturi tube
153rd, the first order venturi mixing tube 157 that is set with the first extremely other connection of pipe 153, it is connected with first order venturi mixing tube
Drawn water other pipe 158, and the other pipe 158 that draws water is provided with and communicated with second level venturi mixing tube 154, and the second level venturi is mixed
Close pipe 154 and be connected with jet aerator anemostat 156, the second level venturi mixing tube 154 and jet aerator anemostat
156 the second pole jet pumps 155 of composition, the air compressor machine 132 provides high energy air to bipolar Venturi tube 11 and is used as power source of the gas, institute
State the in bipolar Venturi tube first extremely other pipe and produce negative pressure absorbing high-temperature flue gas, high-temperature flue gas is entered double by high energy air pressurized canister
The second level jet pump of pole Venturi tube simultaneously sucks cooling water in second level jet pump by cooling water pipeline, is then penetrated at two grades
Stream aerator mixing tube realize mixing wastewater with air and anemostat slow down be pressurized, eventually form micro-bubble make flue gas in water drastically
Diffused aeration drastically cooling down, so that bioxin loses the temperature conditionss recombined.Bipolar venturi jet aerator
Operation principle：High energy air is provided with air compressor machine and does power gas source, draws high-temperature flue gas and hybrid cooling in the first order, then
Flue gas pours into second level jet pump by high energy air pressurization and sucks cooling water in the second level, then expands in secondary jets aerator
Scattered pipe realizes that mixing wastewater with air slows down supercharging, eventually forms micro-bubble diffused aeration drastically cooling down in water so that flue gas
Quickly from 550 DEG C by 350 DEG C of warm areas, land vertically to less than 250 DEG C discharges, whole process was less than 2 second time.Water is also good
Solvent, can be such that the flying dust in flue gas, carbon granules, metal oxide dust is compiled in water, so as to reach gas cleaning purpose.It is described to remove
The bottom of sulphur denitration spray column 7 is provided with air heat exchanger 71, and the air heat exchanger 71 is connected with the outlet flue of dual firing chamber 4, institute
State the lower end of sulphur removal denitration spray column 7 and be also associated with water circulation tank 8.
Cooling water purification processing technological flow in circulating cooling water purification pond：Deoil+precipitate+coagulation+sand filtration+cooling+dirt
Mud processing, quick refrigeration can separate out condensation oiliness particulate or oiliness emulsion in flue gas in water, therefore set grease removal tank
181；If the precipitation process flying dust of sedimentation basin 182 and carbon granules.If coagulating basin 183 is heavy metal oxidation contained by the flue gas retained in water
Thing and metal ion are made to be used as precipitation purified treatment by chemical coagulation.Sand filter 184 enters as cooling water advanced treating link
Residual impurity in one step filter water.Refrigerating work procedure is that the last cooling tower of cooling water purification flow strengthens air-cooled, cooling water in fact
The design of quantity of circulating water ensure that cooling water circulates the hydraulic detention time up to 120 minutes in purified treatment pond.Therefore enter cold
But the water temperature of tower (being located at the top of dioxin removing means) is not over 100 DEG C.Cooling water purification pond sludge periodically uses sludge pump
Innoxious specially treated is done in extraction.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modifications, equivalent substitutions and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. the small-sized domestic garbage pyrolysis processing system of villages and small towns level, it is characterised in that：Pyrolysis oven, sulphur removal including being sequentially communicated setting
A combustion is provided with denitration spray column, cyclone dust collectors, dioxin removal column and circulating cooling water purification pond, the pyrolysis oven
Room, the combustion room is also provided with and communicated with dual firing chamber, and the combustion interior is provided with Stirring and breaks bridge mechanism, and the rotation is stirred
Mix brokenly width wheel of the bridge mechanism including middle part setting and be arranged on the push rod that lower end can down be moved, the Stirring breaks bridge mechanism
Lower section, which is provided with turnover plate type grate body, the dioxin removal column, is provided with bipolar venturi jet aerator, described double
Pole venturi jet aerator burns including two bipolar Venturi tubes, the air compressor machine being connected with two bipolar Venturi tubes, pyrolysis
High-temperature flue gas pipeline and cooling water pipeline are burnt, the circulating cooling water purification pond is connected with the top of dioxin removal column.
2. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1, it is characterised in that：In the pyrolysis oven
It is divided into drying layer, pyrolytic gasification layer, burning zone and burning layer from top to bottom, the Stirring breaks bridge mechanism and is arranged on burning zone
The pyrolytic gasification layer on top, the turnover plate type grate body is arranged on below burning zone lower end, the turnover plate type grate body and set
Ash bucket is equipped with, the ash bucket is communicated with suction one and fires the pyrolysis gas on room drying layer top and the venturi hot blast oxygen supplying tube of steam.
3. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1, it is characterised in that：The Stirring
Width wheel in broken bridge mechanism is coaxially disposed with push rod, and the width wheel can undertake the garbage weight of half in pyrolysis oven, while can stir
Rubbish makes that rubbish is hardened, bull pine, good permeability；The push rod can be pressed downward rubbish under the thrust of hydraulic cylinder piston
Rubbish, so as to reach the purpose for abolishing rubbish crane span structure, width wheel can also stir full stove rubbish with push rod is uniformly distributed it.
4. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 2, it is characterised in that：The venturi heat
Wind oxygen supplying tube is sucked and dried a large amount of steam that floor evaporates and by steam from turnover panel by the Venturi tube of a combustion room bypass
The gap of formula grate body and air holes are sent into one and fire room, after steam is contacted in the top of turnover plate type grate body with red-hot carbon particle
It is reduced into CO+H2、CO2+H2And methane gas, various thermal chemical reactions above and below pyrolysis oven is reached dynamic equilibrium and is carried out continuously,
Steam heat-absorbing action is avoided to produce detrimental effect to the thermal balance of refuse pyrolysis process.
5. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1, it is characterised in that：The turnover plate type stove
Arranging mechanism includes hydraulic piston, linkage connecting rod, stainless rotating steel shaft and cast iron turnover panel, and the hydraulic piston is connected with linkage connecting rod,
The linkage connecting rod is bonded with stainless steel roller pin to be connect, and the cast iron turnover panel is hinged with stainless rotating steel shaft, the cast iron turnover panel
Opening degree is 0-120 degree, and its angle that can vacillate now to the left, now to the right is 60 degree.
6. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1 or 5, it is characterised in that：The turnover panel
Formula grate body one end is provided with and communicated with fire grate cooling ajutage, and the fire grate cooling ajutage can be carried to turnover plate type grate body
Cooling but wind, it is possible to decrease turnover plate type grate body operating temperature, is cooled down while can pass through fire grate and cool down ajutage and provide multi-angle
Wind improves oxygen supply condition around turnover plate type grate body, helps one to fire the burning of room good ventilation.
7. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1, it is characterised in that：The dual firing chamber with
Pyrolysis oven furnace integrated setting, the dual firing chamber includes three independent units, and each unit includes first layer combustion chamber and the
Two layers of combustion chamber, the first layer combustion chamber includes connecting the first air inlet set, the second layer combustion chamber with a combustion room
Including the second air inlet set with first layer combustion chamber, the second layer combustion chamber is provided with outlet flue；The sulphur removal
Denitration spray column bottom is provided with air heat exchanger, and the air heat exchanger is connected with the outlet flue of dual firing chamber.
8. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 7, it is characterised in that：The first layer combustion
Burn room and the second combustion chamber forms deflector type two-layer structure so that gas reaches along combustion centre of dual firing chamber axial flow path length
To 240 degree of arc girths, first layer combustion chamber and the second combustion chamber can ensure burning delay up to more than four seconds, the first layer combustion
Burn room and the second combustion chamber is provided with dual firing chamber's oxygen supplying tube, it is ensured that combustible gas can oxygen-excess combustion, first layer burning in dual firing chamber
Room is also equipped with temperature sensor and dual firing chamber's combustor, and when dual firing chamber's ignition temperature is less than 850 DEG C, system automatically controls two combustions
Room combustor work, so that dual firing chamber's ignition temperature control is in 850--1100 DEG C of scope.
9. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 1, it is characterised in that：The bipolar literary mound
In include in pipe with the first extremely other pipe of pyrolytic incineration high-temperature flue gas pipeline connect setting, with the first extremely other pipe and connect what is set
First order venturi mixing tube, the other pipe that draws water being connected with first order venturi mixing tube, the other pipe that draws water are provided with and communicated with
Second level venturi mixing tube, the second level venturi mixing tube is connected with jet aerator anemostat, the second level text
Mixing tube constitutes the second pole jet pump with jet aerator anemostat in mound, and the air compressor machine provides high energy to bipolar Venturi tube
Air is used as power source of the gas, and the extremely other pipe of first in the bipolar Venturi tube produces negative pressure absorbing high-temperature flue gas, high-temperature flue gas quilt
High energy air pressurized canister enters the second level jet pump of bipolar Venturi tube and sucked in second level jet pump by cooling water pipeline
Cooling water, then realizes mixing wastewater with air in secondary jets aerator mixing tube and is pressurized in anemostat deceleration, eventually formed small
Bubble makes flue gas drastically diffused aeration drastically cooling down in water, so that bioxin loses the temperature conditionss recombined.
10. the small-sized domestic garbage pyrolysis processing system of villages and small towns level according to claim 7, it is characterised in that：The bipolar text
Jet aerator can make flue gas quickly from 550 DEG C by warm area near 350 DEG C in mound, land vertically to less than 250 DEG C and discharge, flue gas
The whole process that cools is less than 2 second time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108592032A (en) * | 2018-04-23 | 2018-09-28 | 苏州阡晨金属包装设备有限公司 | A kind of metal top pop tank crushing incinerating and treating device |
| CN108980840A (en) * | 2018-08-23 | 2018-12-11 | 浙江利欧环保科技有限公司 | It is a kind of for handling the equipment and its processing method of house refuse |
| CN109609159A (en) * | 2019-02-12 | 2019-04-12 | 西北民族大学 | A kind of device of biomass contiguous segmentation catalytic pyrolysis reaction |
| CN110180869A (en) * | 2019-06-19 | 2019-08-30 | 云南中贸环境节能科技投资股份有限公司 | A kind of villages and small towns house refuse high-efficiency cleaning minimizing integrated conduct method |
| CN110332552A (en) * | 2019-04-10 | 2019-10-15 | 杭州正隆环保科技有限公司 | The organic liquid waste recycling treatment system and its method of the sulphur containing chlorine |
| CN110652825A (en) * | 2019-11-08 | 2020-01-07 | 广东佳德环保科技有限公司 | System for removing dioxin in flue gas |
| CN110906338A (en) * | 2019-11-28 | 2020-03-24 | 上海锅炉厂有限公司 | Integrated fluidized bed garbage high-efficiency gasification combustion furnace |
| CN111457382A (en) * | 2020-04-09 | 2020-07-28 | 张仁清 | Garbage pyrolysis gasification furnace |
| CN112980515A (en) * | 2021-03-12 | 2021-06-18 | 衡水市高新区鸿发机械设备科技中心 | Building rubbish gasification environmental protection treatment facility |
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| CN111457382A (en) * | 2020-04-09 | 2020-07-28 | 张仁清 | Garbage pyrolysis gasification furnace |
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