CN107903948A - A kind of segmented pyrolysis gasifying device - Google Patents
A kind of segmented pyrolysis gasifying device Download PDFInfo
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- CN107903948A CN107903948A CN201711387309.0A CN201711387309A CN107903948A CN 107903948 A CN107903948 A CN 107903948A CN 201711387309 A CN201711387309 A CN 201711387309A CN 107903948 A CN107903948 A CN 107903948A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1207—Heating the gasifier using pyrolysis gas as fuel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a kind of segmented pyrolysis gasifying device, wherein, including the first furnace body, first charging aperture and the first discharge port, first main shaft and the second main shaft, first slot type air distribution plate and the second slot type air distribution plate, first drive speed adjustor and the second drive speed adjustor, the first blade and the second blade of multiple equidistantly distributeds are respectively equipped with the first main shaft and the second main shaft, the second discharge port being equipped with the first slot type air distribution plate side, the first partition being equipped between the second slot type air distribution plate and inboard wall of furnace body, and the first gasification agent inlet being equipped with the furnace body of corresponding second slot type air distribution plate side；The first gas outlet is provided with first furnace body.The present invention is efficient with being pyrolyzed, and heat exchange efficiency lifting, reaction is uniform and stable, extends reaction time, raising treating capacity, cost of reducing investment outlay, greatlys save separation during subsequent product utilizes, the refined, effect of purification costs.
Description
Technical field
The present invention relates to biomass solid wastes thermochemical conversion field, more particularly to a kind of segmented pyrolysis gas makeup
Put.
Background technology
As one of biomass thermal chemical conversion Technology Ways, biomass pyrogenation gasification technology is compared with direct combustion more clean and effective
A kind of transform mode, under conditions of high temperature, convert biomass into fuel gas, liquid mixture and solid carbon,
Product is determined that product can be used for power generation and heat supply, synthetic fuel and chemicals etc. by different technology conditions.The technological core equipment is
Pyrolytic gasification reactor, engineer application mainstream equipment is fixed bed and fluid bed two types at present, is each included respectively again not
Same form.Fixed bed has the advantages that simple in structure, manufacture cost is low, moving component is few, but shortcoming is that pyrolytic process is not easy
In order to control, biomass is easily put up a bridge in stove forms wind chamber or reaction is uneven that coking easily occurs to people, so pyrolytic gasification efficiency compared with
It is low.Fluid bed has the advantage that reaction speed is fast, disposal ability is big, but needs the supply of small particle biomass material, system fortune
Row control and detection means are more complicated, and equipment investment is big.Existing pyrolytic gasification technology mainly has distillation process, fixed bed gasification
Technique, fluidized bed gasifying process etc..Distillation process is since energy consumption is high, and heat exchange efficiency is low, and biomass conversion ratio is relatively low, generally
Applied in charcoal production process.Fixed bed gasification technique mainly has uniflow gas stove, down-draft type gasifying furnace, and mixed suction
Gasification furnace etc., material natural packing in fixed bed, due to the inhomogeneities and cloth wind inhomogeneities of material, causes easily to go out in stove
A series of problems, such as burning of current situation portion and underburnt phenomenon, cause reaction rate low, slagging, seriously constrain fixed bed gasification
The stable operation and maximization of stove develop.Wherein, high temperature layer of charcoal, vapor and layer of charcoal are passed through in the combustion gas of downdraft fixed-bed gasification furnace
Reacting, gasification furnace is higher, and fuel gases calorific value is high, and tar content is low, but since high-temperature fuel gas cannot exchange heat with fresh material,
Dry materials pyrolytic process is less efficient, causes the more difficult lifting of down-draft type gasifying furnace treating capacity；Updraft type fixed bed dry materials
Pyrolysis rate is of a relatively high, but since combustion gas is without pyrocarbon layer, tar content is high, and rate of gasification is relatively low.Though fluid bed has
Higher reaction efficiency, but biomass low-density is limited to, particle diameter is uneven, and the characteristic such as high volatile, biomass fluidization
The design and operation of bed operate all also non-mature, and market application success case is limited.From practical engineering experience, utilize
The key that pyrolytic gasification technology obtains required product is pyrolytic gasification technique and biomass physicochemical property and pyrolytic gasification characteristic
Matching degree, therefore, the characteristics of for biomass specific diversity and complicated components, there is an urgent need for a kind of biomass pyrogenation gasification is anti-
Device is answered, has preferable material adaptability, and can effectively control process conditions.
The content of the invention
In view of the above problems, efficient, heat exchange efficiency lifting is pyrolyzed it is an object of the invention to provide one kind, reaction is uniform
Stablize, extend reaction time, improve treating capacity, cost of reducing investment outlay, greatly save subsequent product utilize during separation,
Refined, the segmented pyrolysis gasifying device of purification costs.
To achieve the above object, a kind of segmented pyrolysis gasifying device provided by the invention, wherein, including the first furnace body,
The first charging aperture being equipped with the first furnace body and the first discharge port, open equipped with two stripe pitch in the first furnace body and pass across
The first main shaft and the second main shaft of one furnace body, the first slot type air distribution plate and second being equipped with below the first main shaft and the second main shaft
Slot type air distribution plate, the first drive speed adjustor being respectively equipped with the first main shaft and the second main shaft and the second drive speed adjustor,
Be respectively equipped with first main shaft and the second main shaft multiple equidistantly distributeds the first blade and the second blade, in the first slot type cloth wind
The second discharge port that plate side is equipped with, the first partition being equipped between the second slot type air distribution plate and inboard wall of furnace body, and right
The first gasification agent inlet for answering the furnace body of the second slot type air distribution plate side to be equipped with.Second slot type air distribution plate is formed with the first furnace body
The the first wind chamber separated by first partition.The first gas outlet, the position of above-mentioned first gas outlet are provided with first furnace body
It can be the front end in the first furnace body or at top.Above-mentioned wind chamber can be with formula camber structure, can also formula square
Structure.Wind chamber is separated into several sections by aforementioned barriers, easy to the reaction temperature of each section in accurate regulating stove, therefore, gas
Agent entrance is also not necessarily limited to two, its quantity should be consistent with wind chamber hop count, wherein, each section of wind cavity length is not limited to unanimously.First
Discharge port and the second discharge port are shifted to install on the first slot type air distribution plate and the second slot type air distribution plate.First slot type air distribution plate and
The through hole of multiple arrangement regulations is both provided with second slot type air distribution plate.The distribution of through hole can be located at above-mentioned air distribution plate bottom zone
Domain, can be located at lateral region or other arrangements.The direction phase of first main shaft and the second main shaft spiral rotating
Instead.Due to being hot environment in stove, main axis length can not possibly be long, therefore, in order to ensure material by enough residence times, thing
The mixing effect and reaction uniformity of material gradually reduce, and also ensure enough reaction efficiencies while larger process amount, can
To consider to design two sets of spiral pyrolysis gasification furnaces being superimposed, the i.e. double return structures of twin shaft in stove.Material is in upper strata stove
The burner hearth gasification reaction that the pyrolytic reaction of thorax relies primarily on lower floor provides heat, and the layering with updraft type fixed-bed gasification furnace is reacted
Principle is similar, but its mass-and heat-transfer efficiency is much larger than updraft type fixed-bed gasification furnace.On the premise of ensureing that reaction is uniform and stable,
Reaction time can also be extended, improve treating capacity, cost of reducing investment outlay.
In some embodiments, the first discharge valve and second is respectively arranged with the first discharge port and the second discharge port to unload
Expect valve；Biomass material is sent into from the first charging aperture.
In some embodiments, the first slot type air distribution plate and the second slot type air distribution plate are arcuate structure.
In some embodiments, the inner wall of the first furnace body is provided with insulating layer.
Another object is to provide a kind of segmented pyrolysis gasifying device, wherein, including three be sequentially connected in series the first of connection
Spiral pyrolysis gasification furnace, the second spiral pyrolysis gasification furnace and the 3rd spiral pyrolysis gasification furnace.First spiral pyrolysis gasification furnace includes
Second furnace body, the second charging aperture being equipped with the second furnace body and the 3rd discharge port, in the second furnace body be equipped with pass across second
3rd main shaft of furnace body, the 3rd slot type air distribution plate being equipped with the 3rd main shaft, the 3rd driving tune being equipped with the 3rd main shaft
Fast device, the third blade equipped with multiple equidistantly distributeds on the 3rd main shaft, and in the 3rd slot type air distribution plate and the second furnace body
The second gasification agent inlet that the second partition and the second furnace body of corresponding 3rd slot type air distribution plate side being equipped between wall are equipped with；
The 3rd slot type air distribution plate and the second furnace body form the second wind chamber separated by second partition.Second spiral pyrolysis gasification furnace
Including the 3rd furnace body, the 3rd feed inlet connected with the 3rd discharge port is equipped with the 3rd furnace body, is equipped with the 3rd furnace body
4th discharge port, be equipped with the 4th main shaft, the 4th groove being equipped with the 4th main shaft for passing across the 3rd furnace body in the 3rd furnace body
Formula air distribution plate, the 4th drive speed adjustor being equipped with the 4th main shaft, on the 4th main shaft equipped with multiple equidistantly distributeds the
Quaterfoil, and the 3rd partition plate being equipped between four-groove type air distribution plate and the 3rd inboard wall of furnace body and corresponding four-groove type air distribution plate
The 3rd gasification agent inlet that 3rd furnace body of side is equipped with.Four-groove type air distribution plate and the 3rd furnace body formed by the 3rd partition plate every
The 3rd camber structure opened, can also formula square structure.Four-groove type air distribution plate is formed with the 3rd furnace body and separated by the 3rd partition plate
The 3rd wind chamber.3rd spiral pyrolysis gasification furnace includes the 4th furnace body, is equipped with what is connected with the 4th discharge port on the 4th furnace body
4th feed inlet, the 5th discharge port being equipped with the 4th furnace body, in the 4th furnace body be equipped with pass across the 5th of the 4th furnace body
Main shaft, the 5th slot type air distribution plate being equipped with the 5th main shaft, the 5th drive speed adjustor being equipped with the 5th main shaft, the 5th
Main shaft is equipped with the 5th blade of multiple equidistantly distributeds, and be equipped between the 5th slot type air distribution plate and the 4th inboard wall of furnace body
The 4th gasification agent inlet that 4th partition plate and the 4th furnace body of corresponding 5th slot type air distribution plate side are equipped with.5th slot type cloth wind
Plate and the 4th furnace body form the 4th wind chamber separated by the 4th partition plate.Is respectively arranged with 3rd discharge port and the 4th discharge port
Three discharge valves and the 4th discharge valve.The second gas outlet is provided with respectively on second furnace body and the 4th furnace body and the 3rd combustion gas goes out
Mouthful, the position of above-mentioned second gas outlet can be the front end in the 4th furnace body or at top.It is above-mentioned between each section
Separated by unloading valve, form mutually independent environment, each process that pyrolytic gasification reacts is separated, it is empty in independent burner hearth
It is interior to complete reaction, be conducive to according to material pyrolytic gasification characteristic, and the difference of product demand, set most in each reaction section
Optimal Parameters, can obtain most economical and most efficient reaction efficiency.First blade, the second blade, third blade, quaterfoil and
5th blade can use Interrupted screw blade either rake structure or ribbon structure.Specifically determined by material characteristic.
Main shaft is heat-resistance stainless steel hollow pipe or cast steel pipe fitting.Thus, the structure of hollow pipe can reduce main shaft own wt, improve master
Axis rigidity；The runner of cooling medium is alternatively arranged as, when in-furnace temperature is higher, cooling medium is passed through and ensures main axle structure intensity.
First blade, the second blade, third blade, quaterfoil and the 5th blade on pitch be gradual change type pitch.
Primarily to the characteristics of adapting to volume change during material pyrolytic gasification；In order to increase the mixing effect to material, may be used also
To add rake on blade.
The beneficial effects of the invention are as follows be pyrolyzed it is efficient, heat exchange efficiency lifting, reaction it is uniform and stable, extend reaction stop
The time is stayed, improves treating capacity, cost of reducing investment outlay, greatlys save during subsequent product utilizes and separate, is refined, purification costs
Effect.Operation principle for above-mentioned each spiral pyrolysis gasification furnace is that biomass material is entered in furnace body by feed inlet, in stove
Pyrolytic gasification reaction occurs in hot environment, drive speed adjustor drives main shaft rotation, and the blade connected on main shaft is in rotation process
In, constantly material is stirred, and promote material to moving after stove.Gasifying agent by gasifying agent import into air-inlet chamber, in wind chamber
After interior voltage stabilizing, enter through the uniformly distributed through hole in slot type air distribution plate bottom in stove, oxidation reaction occurs with material, and discharge heat, protect
Demonstrate,prove furnace high-temperature environment.Material after pyrolytic gasification reacts, through gas outlet discharge by the biological fuel gas of generation, remaining breeze
Discharged through unloading valve by discharge port.
The effect of realization is specific as follows：(1) furnace body is passed across using main shaft, using the spiral pyrolysis gasification furnace of direct contact type
Mode, overcoming the prior art, heat exchange efficiency is substantially improved by the way of the helix tube type pyrolysis oven of indirect external heat form.
(2) pitch is gradual change type pitch, is adapted to the characteristic of material reduction in bulk during pyrolytic gasification, improves pyrolysis efficiency.
(3) each slot type air distribution plate is distributed through hole, is conveyed easy to gasifying agent toward furnace body, it is therefore an objective to pyrolysis efficiency is further improved, and
Adapt to different types of material pyrolysis.(4) main shaft is heat-resistance stainless steel hollow pipe or cast steel pipe fitting, i.e., main shaft is in hollow shaft
Add the design of cooling, solve the strength problem in main shaft heated environment.(5) three sections or the spiral moving bed series connection fortune of multistage are utilized
OK, biomass material enters system by feed inlet, and passes sequentially through the first spiral pyrolysis gasification furnace of conversion zone, the second spiral heat
Gasification furnace, the 3rd spiral pyrolysis gasification furnace are solved, completes the overall process of pyrolytic gasification, it is contemplated that the first spiral pyrolytic gasification of conversion zone
Furnace temperature is relatively low, and the 3rd spiral pyrolytic gasification furnace temperature of conversion zone is higher, and volume is not during pyrolytic gasification for material
Disconnected reduction, it is therefore necessary to increase the spiral pyrolytic gasification furnace length of conversion zone first, the 3rd spiral pyrolysis gasification furnace of conversion zone
Length suitably shortens, and not only improves the intensity of main shaft, also complies with the demand of real reaction.The 3rd spiral pyrolysis gasification furnace of conversion zone
In, material density is low, and particle diameter is small, it is necessary to increases furnace height in right amount, reduces gas transverse flow velocity in burner hearth, less dust folder
Ribbon amount.(6) segmentation reaction also helps the utilizing status of adjustment heat, and it is low-temp reaction that the heat that pyroreaction is produced, which is used for,
Section additional heat, not only ensures to react required temperature conditionss, but also does not cause energy dissipation, and the air that can so reduce system disappears
Consumption, fuel gases calorific value will get a promotion.(7) segmentation reaction also helps the quenched of product, contains tar and water by what low temperature produced
The more combustion gas of steam is passed through pyroreaction section, and high temperature layer of charcoal focusing oil has preferable catalytic action, can substantially reduce combustion gas
Tar content；In high temperature layer of charcoal water gas reaction occurs for vapor, is conducive to the raising of fuel gases calorific value and rate of gasification.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1；
Fig. 2 is the schematic cross-sectional view of A-A in the embodiment of the present invention 1；
Fig. 3 is the structure diagram to Fig. 2 deformation designs；
Fig. 4 is the first slot type air distribution plate or the second slot type air distribution plate bottom through-hole distributed architecture schematic diagram；
Fig. 5 is the first slot type air distribution plate or the second slot type air distribution plate side through hole distributed architecture schematic diagram；
Fig. 6 is the structure diagram of the embodiment of the present invention 2；
Fig. 7 is the structure diagram of the embodiment of the present invention 3；
Fig. 8 is the structure diagram of the embodiment of the present invention 4.
Embodiment
Invention is described in further detail below in conjunction with the accompanying drawings.
The embodiment 1 of twin shaft double back journey
As shown in Figs. 1-5, a kind of segmented pyrolysis gasifying device, including the first furnace body 101, set on the first furnace body 101
Some 102 and first discharge ports 103 of first charging aperture, open equipped with two stripe pitch in the first furnace body 101 and pass across the first stove
The first main shaft 104 and the second main shaft 105 of body 101, the first slot type being equipped with below the first main shaft 104 and the second main shaft 105
106 and second slot type air distribution plate 107 of air distribution plate, first be respectively equipped with the first main shaft 104 and the second main shaft 105 driving are adjusted
Fast 108 and second drive speed adjustor 109 of device, be respectively equipped with multiple equidistantly distributeds on the first main shaft 104 and the second main shaft 105
The first blade 110 and the second blade 111, be equipped with 106 side of the first slot type air distribution plate the second discharge port 112,
The first partition 113 being equipped between two slot type air distribution plates 107 and inboard wall of furnace body, and in corresponding second slot type air distribution plate, 107 side
The first gasification agent inlet 114 for being equipped with of furnace body.Second slot type air distribution plate 107 and the first furnace body 101 are formed by first partition
113 the first wind chambers 115 separated.The first gas outlet 116 is provided with first furnace body 101, above-mentioned first gas outlet 116
Position can be the front end in the first furnace body 101 or at top.Above-mentioned wind chamber can also may be used with formula camber structure
With formula square structure.Wind chamber is separated into several sections by above-mentioned first partition 113, easy in accurate regulating stove each section it is anti-
Temperature is answered, therefore, gasification agent inlet is also not necessarily limited to two, its quantity should be consistent with wind chamber hop count, and each section of wind cavity length is not limited to
Unanimously.First discharge port 103 and the second discharge port 112 are shifted to install in the first slot type air distribution plate 106 and the second slot type air distribution plate
On 107.The through hole 117 of multiple arrangement regulations is both provided with first slot type air distribution plate 106 and the second slot type air distribution plate 107.It is logical
The distribution in hole 117 can be located at above-mentioned air distribution plate bottom section, can be located at lateral region or other arrangements.
The direction of 105 spiral rotating of first main shaft 104 and the second main shaft is opposite.It is hot environment in stove, main axis length can not possibly be long,
Therefore, in order to ensure material by enough residence times, the mixing effect and reaction uniformity of material gradually reduce, larger
Also ensure enough reaction efficiencies while treating capacity, it may be considered that two sets of spiral pyrolysis gas being superimposed are designed in stove
Change stove, the i.e. double return structures of twin shaft.The burner hearth gasification reaction that material relies primarily on lower floor in the pyrolytic reaction of upper strata burner hearth provides
Heat, it is similar with the layering reaction principle of updraft type fixed-bed gasification furnace, but its mass-and heat-transfer efficiency is fixed much larger than updraft type
Bed gasification furnace.It on the premise of ensureing that reaction is uniform and stable, can also extend reaction time, improve treating capacity, reduce investment outlay
Cost.The first discharge valve 118 and the second discharge valve 119 are respectively arranged with first discharge port 103 and the second discharge port 112；It is raw
Material charge is sent into from the first charging aperture 102.First slot type air distribution plate 106 and the second slot type air distribution plate 107 are arc
Shape structure.The inner wall of first furnace body 101 is provided with insulating layer 120.
The embodiment 2 of the spiral pyrolysis gasification furnace of segmented
As shown in fig. 6, a kind of segmented pyrolysis gasifying device, including three the first spiral pyrolysis gas for being sequentially connected in series connection
Change stove 210, the second spiral 220 and the 3rd spiral pyrolysis gasification furnace 230 of pyrolysis gasification furnace.First spiral pyrolysis gasification furnace 210 wraps
Include the second furnace body 211,212 and the 3rd discharge port 213 of the second charging aperture being equipped with the second furnace body 211, in the second furnace body 211
It is interior be equipped with pass across the 3rd main shaft 214 of the second furnace body 211, the 3rd slot type air distribution plate 215 being equipped with the 3rd main shaft 214,
The 3rd drive speed adjustor 216 that is equipped with the 3rd main shaft 214, on the 3rd main shaft 214 equipped with multiple equidistantly distributeds the
Three blades 217, and the second partition 218 being equipped between the 3rd slot type air distribution plate 215 and 211 inner wall of the second furnace body and corresponding
The second gasification agent inlet 219 that second furnace body 211 of three slot type air distribution plates, 215 side is equipped with.3rd slot type air distribution plate 215 with
Second furnace body 211 forms the second wind chamber 2110 separated by second partition 218.Second spiral pyrolysis gasification furnace 220 includes the 3rd
Furnace body 221, on the 3rd furnace body 221 be equipped with connected with the 3rd discharge port 213 the 3rd feed inlet 222, on the 3rd furnace body 221
The 4th discharge port 223 that is equipped with, be equipped with the 3rd furnace body 221 and pass across the 4th main shaft 224 of the 3rd furnace body 221, the 4th
Four-groove type air distribution plate 225 that main shaft 224 is equipped with, the 4th drive speed adjustor 226 being equipped with the 4th main shaft 224,
Four main shafts 224 are equipped with the quaterfoil 227 of multiple equidistantly distributeds, and in 225 and the 3rd furnace body 221 of four-groove type air distribution plate
The 3rd partition plate 228 and the 3rd furnace body 221 of corresponding 225 side of four-groove type air distribution plate being equipped between inner wall be equipped with the 3rd
Gasification agent inlet 229.225 and the 3rd furnace body 221 of four-groove type air distribution plate forms the 3rd camber knot separated by the 3rd partition plate 228
Structure, can also formula square structure.225 and the 3rd furnace body 221 of four-groove type air distribution plate forms the 3rd separated by the 3rd partition plate 228
Wind chamber 2210.3rd spiral pyrolysis gasification furnace 230 includes the 4th furnace body 231, is equipped with and the 4th discharge port on the 4th furnace body 231
4th feed inlet 232 of 223 connections, the 5th discharge port 233 being equipped with the 4th furnace body 231, be equipped with the 4th furnace body 231
The 5th main shaft 234 for passing across the 4th furnace body 231, the 5th slot type air distribution plate 235 being equipped with the 5th main shaft 234, the 5th
The 5th drive speed adjustor 236 that main shaft 234 is equipped with, the 5th blade for being equipped with the 5th main shaft 234 multiple equidistantly distributeds
237, and the 4th partition plate 238 being equipped between the 5th slot type air distribution plate 235 and 231 inner wall of the 4th furnace body and corresponding 5th slot type
The 4th gasification agent inlet 239 that 4th furnace body 231 of 235 side of air distribution plate is equipped with.5th slot type air distribution plate 235 and the 4th stove
Body 231 forms the 4th wind chamber 2310 separated by the 4th partition plate 238.There is setting respectively on second furnace body 211 and the 4th furnace body 231
There are the second gas outlet 240 and the 3rd gas outlet 250.Second is provided with respectively on second furnace body 211 and the 4th furnace body 231
240 and the 3rd gas outlet 250 of gas outlet, the position of above-mentioned second gas outlet 240 can be before the 4th furnace body 231
End or at top.Separated between above-mentioned each section by unloading valve, form mutually independent environment, by pyrolytic gasification
Each process of reaction separates, and reaction is completed in independent furnace cavity, is conducive to according to material pyrolytic gasification characteristic, and
The difference of product demand, sets the most optimized parameter in each reaction section, can obtain most economical and most efficient reaction efficiency.First
Blade 110, the second blade 111, third blade 217,227 and the 5th blade 237 of quaterfoil can use Interrupted screw
Blade either rake structure or ribbon structure.Specifically determined by material characteristic.Main shaft is heat-resistance stainless steel hollow pipe or casting
Steel pipe fitting.The structure of hollow pipe can reduce main shaft own wt, improve main axis stiffness；The runner of cooling medium is alternatively arranged as,
When in-furnace temperature is higher, it is passed through cooling medium and ensures main axle structure intensity.First blade 110, the second blade 111, third blade
217th, 227 and the 5th blade 237 of quaterfoil on pitch be gradual change type pitch.Primarily to adapt to material pyrolytic gasification
During volume change the characteristics of；In order to increase the mixing effect to material, rake can also be added on blade.
The spiral pyrolysis gasification furnace of segmented obtains the embodiment 3 of the technological principle of high calorific value and low tar combustion gas
As shown in fig. 7, material enters system by spiral 210 feed inlet of pyrolysis gasification furnace of conversion zone first, in conversion zone
It is dried in one spiral pyrolysis gasification furnace 210 and pyrolytic reaction, combustion gas is by the of the spiral pyrolysis gasification furnace 210 of conversion zone first
Two gas outlets 240 are discharged, in the spiral pyrolysis gasification furnace 220 of conversion zone second, the air that is entered by the 3rd gasification agent inlet 229
Gasification reaction is carried out with the material from spiral the 3rd discharge port 213 of pyrolysis gasification furnace 210 of conversion zone first, combustion gas is produced and releases
Thermal discharge, for maintaining the hot environment of the spiral pyrolysis gasification furnace 220 of conversion zone second, the high-temperature fuel gas of generation is by conversion zone
Two spiral 220 gas outlet of pyrolysis gasification furnace discharges, and enter the spiral pyrolysis gasification furnace 210 of conversion zone first and be used to maintain to react
Heat needed for the first spiral pyrolysis gasification furnace 210 of section；Remaining material after the spiral pyrolysis gasification furnace 220 of conversion zone second reacts
Enter the 3rd spiral pyrolysis gasification furnace 230 of conversion zone through discharge port, enter in spiral 230 gasifying agent of pyrolysis gasification furnace of conversion zone the 3rd
Mouthful suitable air is passed through, for lifting the reaction temperature of the 3rd spiral pyrolysis gasification furnace 230 of conversion zone, and by conversion zone first
Spiral 230 gasification agent inlet of pyrolysis gasification furnace of conversion zone the 3rd is sent into the combustion gas of spiral 210 gas outlet of pyrolysis gasification furnace discharge,
Using the tar that carries in the pyrocarbon layer catalysis combustion gas in the 3rd spiral pyrolysis gasification furnace 230 of conversion zone, and with combustion gas
Vapor is reacted, the fixed carbon of further spent material, the final combustion gas for obtaining high calorific value and low tar and by conversion zone the
The gas outlet discharge system of three spiral pyrolysis gasification furnaces 230, remaining breeze are gone out by the 3rd spiral pyrolysis gasification furnace 230 of conversion zone
Material mouth discharge system.
The spiral pyrolysis gasification furnace of segmented obtains the embodiment 4 of the technological principle of high calorific value and low tar combustion gas
As shown in figure 8, biomass material enters system by spiral 210 feed inlet of pyrolysis gasification furnace of conversion zone first, anti-
Surplus material enters the second spiral pyrolytic gasification of conversion zone after answering the spiral progress of the pyrolysis gasification furnace 210 low temperature pyrogenation reaction of section first
Medium temperature pyrolytic reaction (temperature is between 400~500 DEG C) occurs for stove 220, afterwards into the 3rd spiral pyrolysis gasification furnace of conversion zone
230 carry out high temperature pyrolysis reaction (temperature is between 600~750 DEG C), occur in the spiral pyrolysis gasification furnace 210 of conversion zone first
Combustion gas obtained by low temperature pyrogenation reaction is mainly the component such as carbon dioxide and a small amount of carbon monoxide, Yi Jishui, wood vinegar, will be fired
Gas carries out condensation process, you can obtains the wood vinegar that tar content is extremely low, property is stablized, the second spiral pyrolysis gasification furnace of conversion zone
Combustion gas obtained by medium temperature pyrolytic reaction contains a certain amount of tar light oil in 220, this pyrolysis gas is condensed i.e. available
Bio-oil, can be used as fuel or industrial chemicals uses；It is anti-that high temperature pyrolysis occurs in the 3rd spiral pyrolysis gasification furnace 230 of conversion zone
The pyrolysis gas that should be produced is sent into the gasifying agent import of the spiral pyrolysis gasification furnace 220 of conversion zone second, spiral as conversion zone second
Pyrolysis gasification furnace 220 carries out the heat source of pyrolytic reaction；The partial thermal decomposition gas that the spiral pyrolysis gasification furnace 220 of conversion zone second produces
Send to burner 260, and match suitable air and burn, the high-temperature flue gas of generation divides two-way, send all the way to conversion zone
Three spiral pyrolysis gasification furnaces 230 are as the heat source needed for high temperature pyrolysis, low temperature purification after another stove is exchanged heat with air preheater 270
Discharge；The hot-air that air preheater 270 exports is used for the heat source of spiral 210 low temperature pyrogenation of pyrolysis gasification furnace of conversion zone first.Reaction
The pyrolysis gas that the first spiral pyrolysis gasification furnace 210 of section produces carries out condensation process, will be surplus after collecting wood vinegar and reducing water content
Residual air body send to burner 260 and is used as 260 air distribution of burner；The 3rd spiral pyrolysis gasification furnace 230 of conversion zone reacts remaining
Biomass carbon through 233 discharge system of the 5th discharge port.Above-mentioned air preheater is finned tube exchanger.Second furnace body 211 and the 3rd
The second gas outlet 240 and the 4th gas outlet 280 are provided with furnace body 221 respectively.
The process system utilizes stages process, realizes biomass air-liquid, charcoal Poly-generation using optimum condition, can obtain
Good wood vinegar, good biomass carbon and fuel gas.By the use of high-temperature flue gas as heat source in technique, and it is direct with material
Contact, not only improves reaction efficiency, but also can stringent controlling reaction temperature, it is ensured that the product quality of each conversion zone is stablized, conversion zone
Low-temp reaction is carried out in first spiral pyrolysis gasification furnace 210, and is pyrolyzed by hot-air, it is ensured that tar contains in wood vinegar product
Measure it is extremely low, it is best in quality, larger wood vinegar can be saved and refine cost.The spiral pyrolysis gasification furnace 210 of conversion zone first produces
The condensed collection wood vinegar of pyrolysis gas, and the burning air distribution reduced after water content as burner 260 uses, will be few among gas
Measure carbon monoxide consumption totally, energy utilization rate is higher.The technique strictly avoids air from being contacted with material in high-temperature pyrolysis stage,
Ensure that fixed carbon retains with biomass carbon, plus the reaction condition strictly controlled, biomass has been effectively ensured to greatest extent
The product quality and yield of charcoal.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection domain of invention.
Claims (9)
- A kind of 1. segmented pyrolysis gasifying device, it is characterised in that including the first furnace body, be equipped with the first furnace body first into Material mouth and the first discharge port, be equipped with the first main shaft and the second master that two stripe pitch are opened and pass across the first furnace body in the first furnace body Axis, the first slot type air distribution plate being equipped with below the first main shaft and the second main shaft and the second slot type air distribution plate, in the first main shaft and The first drive speed adjustor and the second drive speed adjustor that are respectively equipped with second main shaft, on the first main shaft and the second main shaft respectively The first blade and the second blade equipped with multiple equidistantly distributeds, second be equipped with the first slot type air distribution plate side discharge Mouth, the first partition being equipped between the second slot type air distribution plate and inboard wall of furnace body, and in corresponding second slot type air distribution plate side The first gasification agent inlet that furnace body is equipped with；The first gas outlet is provided with first furnace body；The second slot type air distribution plate and the first furnace body form the first wind chamber separated by first partition；First discharge port and the second discharge port is shifted to install on the first slot type air distribution plate and the second slot type air distribution plate；Institute The through hole of multiple arrangement regulations is both provided with the first slot type air distribution plate and the second slot type air distribution plate stated；First main shaft and the direction of the second main shaft spiral rotating are opposite.
- A kind of 2. segmented pyrolysis gasifying device according to claim 1, it is characterised in that first discharge port and The first discharge valve and the second discharge valve are respectively arranged with second discharge port；Biomass material is sent from the first charging aperture Enter.
- A kind of 3. segmented pyrolysis gasifying device according to claim 2, it is characterised in that the first slot type cloth wind Plate and the second slot type air distribution plate are arcuate structure.
- A kind of 4. segmented pyrolysis gasifying device according to claim 1, it is characterised in that the inner wall of first furnace body It is provided with insulating layer.
- 5. a kind of segmented pyrolysis gasifying device, it is characterised in that including three the first spiral pyrolysis gas for being sequentially connected in series connection Change stove, the second spiral pyrolysis gasification furnace and the 3rd spiral pyrolysis gasification furnace；The first spiral pyrolysis gasification furnace goes out including the second furnace body, the second charging aperture and the 3rd being equipped with the second furnace body Material mouth, be equipped with the 3rd main shaft, the 3rd slot type cloth wind being equipped with the 3rd main shaft for passing across the second furnace body in the second furnace body Plate, the 3rd drive speed adjustor being equipped with the 3rd main shaft, the third blade equipped with multiple equidistantly distributeds on the 3rd main shaft, And the second partition that is equipped between the 3rd slot type air distribution plate and the second inboard wall of furnace body and corresponding 3rd slot type air distribution plate side The second gasification agent inlet that second furnace body is equipped with；The 3rd slot type air distribution plate and the second furnace body formed by second partition every The the second wind chamber opened；The second spiral pyrolysis gasification furnace includes the 3rd furnace body, the connected with the 3rd discharge port is equipped with the 3rd furnace body Three feed inlets, the 4th discharge port being equipped with the 3rd furnace body, be equipped with the 4th master for passing across the 3rd furnace body in the 3rd furnace body Axis, the four-groove type air distribution plate being equipped with the 4th main shaft, the 4th drive speed adjustor being equipped with the 4th main shaft, the 4th master Axis is equipped with the quaterfoil of multiple equidistantly distributeds, and the be equipped between four-groove type air distribution plate and the 3rd inboard wall of furnace body The 3rd gasification agent inlet that three partition plates and the 3rd furnace body of corresponding four-groove type air distribution plate side are equipped with；The four-groove type Air distribution plate and the 3rd furnace body form the 3rd camber structure separated by the 3rd partition plate, can also formula square structure；The four-groove type air distribution plate and the 3rd furnace body form the 3rd wind chamber separated by the 3rd partition plate；The 3rd spiral pyrolysis gasification furnace includes the 4th furnace body, the connected with the 4th discharge port is equipped with the 4th furnace body Four feed inlets, the 5th discharge port being equipped with the 4th furnace body, be equipped with the 5th master for passing across the 4th furnace body in the 4th furnace body Axis, the 5th slot type air distribution plate being equipped with the 5th main shaft, the 5th drive speed adjustor being equipped with the 5th main shaft, the 5th master Axis is equipped with the 5th blade of multiple equidistantly distributeds, and the be equipped between the 5th slot type air distribution plate and the 4th inboard wall of furnace body The 4th gasification agent inlet that four partition plates and the 4th furnace body of corresponding 5th slot type air distribution plate side are equipped with；5th slot type Air distribution plate and the 4th furnace body form the 4th wind chamber separated by the 4th partition plate；The second gas outlet and the 3rd gas outlet are provided with respectively on second furnace body and the 4th furnace body.
- 6. a kind of segmented pyrolysis gasifying device according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that described First blade, the second blade, third blade, quaterfoil and the 5th blade can use Interrupted screw blade or rake Structure or ribbon structure.
- 7. a kind of segmented pyrolysis gasifying device according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that described Main shaft is heat-resistance stainless steel hollow pipe or cast steel pipe fitting.
- 8. a kind of segmented pyrolysis gasifying device according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that described First blade, the second blade, third blade, quaterfoil and the 5th blade on pitch be gradual change type pitch.
- A kind of 9. segmented pyrolysis gasifying device according to claim 5, it is characterised in that the 3rd discharge port and The 3rd discharge valve and the 4th discharge valve are respectively arranged with 4th discharge port.
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