CN107974301A - A kind of knockdown pyrolysis gasifying device - Google Patents
A kind of knockdown pyrolysis gasifying device Download PDFInfo
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- CN107974301A CN107974301A CN201810024062.4A CN201810024062A CN107974301A CN 107974301 A CN107974301 A CN 107974301A CN 201810024062 A CN201810024062 A CN 201810024062A CN 107974301 A CN107974301 A CN 107974301A
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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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention discloses a kind of knockdown pyrolysis gasifying device, wherein, including spiral pyrolysis gasification furnace, fluidized-bed gasification furnace, and cyclone separator and cyclone dust collectors.Spiral pyrolysis gasification furnace includes burner hearth, feed inlet, the first gasification agent inlet, the first gas outlet, slag-drip opening, air distribution plate, main shaft and helical blade, and driver.Fluidized-bed gasification furnace includes settling section burner hearth, changeover portion burner hearth, dilute phase section burner hearth, close phase section burner hearth, isobaric bellows from top to bottom successively, and fire grate, is also connected on fire grate and penetrates through the scum pipe of isobaric bellows.The present invention effectively improves biomass pyrogenation gasification intensity, efficiency of carbon con version and fuel gases calorific value, during reduction biomass pyrogenation gasification in the consumption of gasifying agent, biological fuel gas the extremely toxic substance content such as tar content and biological fuel gas Zhong bioxin effect.
Description
Technical field
The present invention relates to a kind of biomass pyrogenation gasification field, more particularly to a kind of knockdown pyrolysis gasifying device.
Background technology
Biomass energy belongs to a kind of renewable resource, as the substitute of fossil energy, has low sulfur content, " zero " carbon
The advantages such as discharge.Compared with coal, the volatile matter content of biomass is higher, and fixed carbon content is relatively low, has burning point low, easily catches fire
The features such as, but alkali metal, alkaline-earth metal equal size are higher in most of biomass, cause biomass ash fusion point low, combustion process
Easily there is the problem of coking and dust stratification.Biomass pyrogenation gasification is the technology that a kind of high efficiency utilizes biomass resource, is pyrolyzed
The purpose of gasification is to convert biomass into fuel gas, and is equipped with burner special and steam generator system, so as to reach biomass
The clean utilization of resource.Since biomass ash fusion point is relatively low, and in the reducing atmosphere that pyrolysis produces, ash fusion point, which also has, to be declined
Trend, temperature should not be too high during pyrolytic gasification, therefore, in order to ensure the abundant conversion of material, it is necessary to longer stop
Time, equipment investment cost increase, treating capacity are restricted, and integrated heat efficiency is not high.It can be caused again when insufficient between when reacted
Pyrolytic gasification reaction in furnace is incomplete, and efficiency of carbon con version is not high, so as to influence the energy utilization rate of biomass.In fixed-bed gasification furnace
Material is opposing stationary, and heat and mass efficiency is low, and the inhomogeneities of heterogencity and cloth the wind system distribution of material is easier to make
Local overheating causes coking in into stove, therefore treatment scale should not be too large, and treatment effeciency is relatively low, and biology can not be solved from root
The bottleneck problem that matter pyrolytic gasification application faces.Fluidized-bed gasification furnace has good mass-and heat-transfer condition and reaction condition, thing
Material reaction is uniform, and the intensity of gasification is high, and since fluid bed allows larger circulating ratio, can guarantee that material is enough in stove and stop
The time is stayed, efficiency of carbon con version is higher.But in biomass pyrogenation gasification technical elements, the application of fluid bed also there are problems,
To find out its cause, irregular mainly due to (1) biomass material form, particle diameter distribution is wide, is difficult in the design of burner hearth cross section flow velocity
Ensure not only to have allowed all materials homomergic flow at the same time, but also not by material web flake hearth-tapping；(2) biomass belongs to high volatile, low fixation
Carbon fuel, biomass are changed greatly into physicochemical characteristics such as the particle diameter behind stokehold, density, with set the data deviation of timing reference compared with
Greatly；(3) after biomass is heated into stove, a large amount of Volatiles simultaneously heat up, and gas volume increases rapidly in burner hearth, cross section in stove
Change in flow is larger；(4) fluidizing velocity, gasifying agent equivalent proportion, reaction temperature are closed very much in design of Fluidized bed and operational process
Three parameters of key, wherein, gasifying agent equivalent proportion affects fluidizing velocity, while plays the role of adjusting reaction temperature again,
During operation and maintenance, monitoring and controlling reaction temperature is opposite to be easier to, thus often ignores fluidizing velocity, particularly in underload
In operational process, gasification dosage reduces, and in the case that area of section is constant, fluidizing velocity reduces, and is easy to fluidisation shape occur
State unstable the problems such as even resulting in coking.Now, have an a kind of spiral pyrolysis gasifying device of multisection type, spiral pyrolysis gasification furnace with
The accurate control of its reaction process, with the characteristics of regulating measure is flexible and changeable, while has higher mass-and heat-transfer efficiency and reaction
The advantage of coking is uniformly not easy, can be good at adapted biomass pyrolytic gasification characteristic.In spiral pyrolysis gasification furnace, material is by spiral shell
Vane piece and the action of forced stirring of material toggling piece so as to fulfill material thermally equivalent, it is not necessary to sufficient fluidized state need to only reach
To appropriate bubbling state, you can obtain the higher intensity of gasification, therefore, be not required to worry because material volatile matter is high, fluidizing velocity
Problem rambunctious.But there are moving component in spiral pyrolysis gasification furnace, reaction temperature is unsuitable excessive, and efficiency of carbon con version is relatively low.
It was found from being analyzed above：Spiral pyrolysis gasification furnace is applied to biomass material pyrolytic gasification technique, has stronger
Pre-treatment advantage, but advantage is had no to the conversion process of biomass carbon；Pyrolysis gas of the fluidized-bed gasification furnace for biomass material
Change in terms of processing there are problems, but for the metastable biomass carbon of property, there is stronger adaptability, can be preferable
Completion biomass carbon conversion.
The content of the invention
In view of the above problems, biomass pyrogenation gasification intensity is effectively improved it is an object of the invention to provide one kind, carbon turns
Rate and fuel gases calorific value, reduce during biomass pyrogenation gasification in the consumption of gasifying agent, biological fuel gas tar content and
The knockdown pyrolysis gasifying device of the extremely toxic substance contents such as biological fuel gas Zhong bioxin.
To achieve the above object, a kind of knockdown pyrolysis gasifying device provided by the invention, wherein, including spiral pyrolysis
Gasification furnace, be equipped with the fluidized-bed gasification furnace connected with spiral pyrolysis gasification furnace in spiral pyrolysis gasification furnace side, and in fluid bed
The cyclone separator and cyclone dust collectors that gasification furnace is equipped with.Spiral pyrolysis gasification furnace include burner hearth, be equipped with burner hearth into
Material mouth, the first gasification agent inlet being equipped with burner hearth, the first gas outlet being equipped with burner hearth, the row being equipped with burner hearth
Cinder notch, the air distribution plate being equipped with burner hearth, be equipped with above air distribution plate and cross the main shaft of burner hearth and be equipped with main shaft spiral
The driver being equipped with blade, and spindle nose outside burner hearth.Fluidized-bed gasification furnace includes settling section from top to bottom successively
Burner hearth, changeover portion burner hearth, dilute phase section burner hearth, close phase section burner hearth, isobaric bellows, and close phase section burner hearth bottom are equipped with the stove with blast cap
Row, and be connected on fire grate and penetrate through the scum pipe of isobaric bellows.Settling section burner hearth side is provided with the second gas outlet, described
The second gas outlet be connected with cyclone separator；The cyclone separator is connected with cyclone dust collectors.In close phase section burner hearth
Upper side is provided with feed inlet, and the feed inlet is connected with feeding screw.Slag-drip opening is connected with feeding screw.Close phase
Section burner hearth middle and lower part side is provided with the second fuel gas inlet.Dilute phase section burner hearth middle and lower part side is provided with the first fuel gas inlet.Spiral shell
Revolving pyrolysis gasification furnace can be by the way of one or more snippets series connection.
In some embodiments, isobaric bellows entrance is connected with the first air blower of supply air.
In some embodiments, the first high-temperature fuel gas pressuring machine is communicated with cyclone dust collectors；First high temperature
Gas booster machine is connected with the first gasification agent inlet；Set between the first high-temperature fuel gas pressuring machine and the first gasification agent inlet
It is equipped with the combustion gas output terminal of discharge combustion gas.
In some embodiments, the discharge gate of cyclone separator bottom is connected with feeding screw；It is described it is spiral into
Star-shaped discharge valve is provided between glassware and the discharge gate of cyclone separator bottom.
In some embodiments, the first gas-purification tank is connected with the first gas outlet；First combustion gas is net
Change tank to connect with dilute phase section burner hearth and close phase section burner hearth respectively.Then above-mentioned first gas-purification tank can be fired with low temperature pyrogenation
Qi exhaustion chlorine, then carry out high-temperature gasification.
In some embodiments, the second air blower of supply air is provided with close phase section burner hearth.
In some embodiments, the first gas outlet is provided with the second gas-purification tank；Second gas-purification
The second high-temperature fuel gas pressuring machine is provided with tank；The second high-temperature fuel gas pressuring machine respectively with dilute phase section burner hearth and isobaric wind
Case connects.Above-mentioned second gas-purification tank can be with low temperature pyrogenation and then progress combustion gas dechlorination, then carries out high-temperature gasification.
In some embodiments, gas outlet and flying dust outlet are provided with cyclone dust collectors.
The beneficial effects of the invention are as follows with effectively improving biomass pyrogenation gasification intensity, efficiency of carbon con version and fuel gases calorific value,
Reduce during biomass pyrogenation gasification tar content and biological fuel gas Zhong bis- Evil in the consumption of gasifying agent, biological fuel gas
The effect of the extremely toxic substance content such as English.It is specific as follows：(1) biomass material physical aspect is uneven：The grain of biomass material
Footpath has a very wide distribution, and density is not of uniform size, shape, specific surface area and shaggy differs greatly.During with fixed bed gasification,
Material is uneven and cloth wind is uneven is easy to cause the uniform of reaction, and local overheating, occurs the failures such as coking.Fixed bed gasification
Intensity is low, and scale should not be too large, and equipment and construction cost are higher.During with fluidized gasification, fluid bed critical flow velocity is chosen tired
Difficulty, flow velocity is excessive, gentlier, smaller or material larger specific surface area be easily carried away, the residence time is inadequate, reaction do not fill
Point, gasification efficiency is low；The less material of heavier, larger or specific surface area is difficult to fluidize, and is easily deposited on air distribution plate, influences to flow
Situations such as changing the cloth wind of bed, easily producing channel, slugging and dead bed, triggers reaction in furnace uneven, local coking or caking
Phenomenon, even result in blowing out.Biomass is handled using spiral pyrolysis oven, from the influence of material physical aspect, helical blade
Action of forced stirring also ensure that the uniformity of reaction in furnace, while stove inner transmission matter heat-transfer effect can be strengthened, improve the intensity of gasification.Profit
After implementing pre- carbonization to material with spiral pyrolysis oven, material has larger improvement in terms of the uniformities such as density, particle diameter, but
Efficiency of carbon con version is not relatively high, therefore, it is necessary to carry out carrying out fluidized gasification processing to the breeze after pyrolysis using fluid bed, both
Fluid bed charging stability can be enable to be lifted, the design difficulty of fluid bed is substantially reduced, improve the operation stability of fluid bed,
The efficiency of carbon con version of material can be improved again at the same time, to obtain higher gasification efficiency.(2) biomass material physical characteristic change
Greatly：1. in biomass fluidized bed gasification furnace, due to biomass containing volatile matter it is higher, be heated easily decompose, into stove after volatile matter
A large amount of precipitations and temperature rise, cause gas volume increase, cross-sectional gas change in flow in burner hearth larger；2. volatilization analysis
After going out, the characteristic such as the particle diameter of material, density, specific surface area can also vary widely therewith.1) reaction in fluid bed burner hearth
During, when increase but material density are reducing, gas carries inventory and can greatly increase flow velocity；2) at this time, increase fluidisation
Bed sectional area, can reduce cross sectional flow rate, but due to the characteristic of the uniform hybrid reaction of material in fluidized-bed gasification furnace, for just
Into for the fresh material of stove, flow velocity is relatively low and easy occurs to fluidize abnormal phenomenon；3) back taper flaring burner hearth knot is utilized
Structure carrys out the situation of adaptive Interface Current speed change, can be with the equilibrium of coutroi velocity, but burner hearth taper is difficult to hold, and flaring type
The problem of fluidisation layering easily occurs for chamber structure, and mass-and heat-transfer effect declines to a great extent.To sum up analyze, biomass fluid bed gasification
The design of stove had not only needed to consider material cold conditions and hot fluidization characteristic at the same time, but also needed to take into account fresh material and thing after reaction
The fluidization characteristic of material, the design difficulty of fluid bed are significantly increased.In spiral moving bed, biomass material is thermally decomposed, volatilization
Dividing and largely separate out, volatile matter content reduces in remaining breeze, and fixed carbon content accounting raising, its property and coal are more like,
Reaction makes in fluid bed, and property is more stable.(3) biomass belongs to clean fuel, its main component is hydrocarbon oxygen nitrogen, and sulphur contains
Measure relatively low.But since needed for growth, more salt is contained in plant, cause in biomass material often containing a certain amount of
Organochlorine (house refuse belongs to the biomass of broad sense, its chloride characteristic is particularly true).The presence of chlorine element, causes biomass
The extremely toxic substances such as bioxin are easily produced in high temperature aerobic environment.Using helical reactors, within the scope of suitable temperature into
Row pyrolytic reaction, the organochlorine in biomass are separated out in the form of hydrogen chloride, by being pyrolyzed the dechlorination purified treatment of combustion gas, can obtained
Clean combustion gas is obtained, bioxin is reduced and forms essential key element, effectively controls the generation of bioxin.(4) gasification of biomass
Fuel gases calorific value is low.Standard biologic matter gasification, mostly using air as gasifying agent, gas is provided by partial oxidation reaction heat release
Change process institute calorific requirement.It is beneficial for gasification reaction that raw material, which contains certain moisture, but often water content is higher for biomass, removes
Outside pyrolytic reaction institute calorific requirement, also need to be additionally provided partial heat achieve the purpose that it is dry, therefore, needed for reaction process
Gasifying agent equivalent is unsuitable too low, and the nitrogen amount increase of system is entered with air, causes the fuel gases calorific value that gasification is obtained general
All over relatively low.Using spiral pyrolysis reactor in fluidized bed gasification reactor, in material into stokehold, the part produced by system is fired
Gas combustion heat release, reacts for independent raw material drying and low temperature pyrogenation, effectively reduces material into stove moisture, reduces spiral pyrolysis
Heat needed for reaction, reduces gasifying agent consumption, reduces the nitrogen gas component carried in combustion gas, can improve fuel gases calorific value.(5) flow
Change bed gasification furnace load fluctuation bad adaptability.Reaction temperature, fluidizing velocity, gasification dosage are three keys of fluidized-bed gasification furnace
Operating parameter, wherein, the size for the dosage that gasifies, affects reaction temperature, while affects fluidizing velocity again, therefore, works as stream
When changing bed gasification furnace load fluctuation, flow velocity should be reduced accordingly, and fire box temperature also can be impacted at this time, and gasification dosage is subject to stove
The dual limitation of bore temperature and fluidizing velocity, the operation for fluidized-bed gasification furnace are unfavorable when running.It is anti-using spiral pyrolysis
Device is answered in fluidized bed gasification reactor, the fluidizing agent by the use of the combustion gas that spiral pyrolysis reactor produces as fluid bed, close
Phase section is passed through the temperature that suitable air is used for separately adjustable reactor, can increase adaptation energy of the fluid bed to load fluctuation
Power, it is ensured that fluid bed remains the operating condition of efficient stable.(6) using spiral pyrolytic reaction in fluidized gasification reaction group
Close, also help and maintain system-wide long-term operation, when spiral pyrolysis reactor or fluidized-bed gasification furnace break down, also
Independent spiral pyrolysis reactor or fluidized bed gasification reactor can be run, is raced against time for maintenance, it is ensured that system is not shut down,
There is the system of strict demand for long-term operation, there is larger advantage.(7) in conventional pyrolytic gasification technique, often by
The factors such as biomass ash fusion point is low are formed on, pyrolytic gasification temperature is unsuitable excessive, and most of fixed carbon reaction is incomplete, finally with stove
Slag is discharged together, causes gasification efficiency often to can only achieve 70%~75% or so, compared with biomass direct-fired, is had obvious
Inferior position.The device combined using spiral pyrolysis gasification furnace with fluidized-bed gasification furnace, can complete life in spiral pyrolysis gasification furnace
The pyrolytic reaction of material, while realize the minimizing homogenize process of biomass, improved in fluidized-bed gasification furnace with bed material
Breeze ash fusion point, improves reaction temperature, and the reaction of water coal device is carried out to fixed carbon using the vapor carried in combustion gas, improves solid
Determine charcoal conversion ratio, increase the gasification efficiency of system, while generator yield and fuel gases calorific value can also be increased.(8) pyrolysis production combustion gas
Middle tar content is higher.The problem of tar is carried in general pyrolytic gasification technique, in combustion gas is the comparison faced in whole industry
Stubborn problem, especially for pyrolytic process, updraft type fixed-bed process, its tar content not only influences system pipeline valve
Operational reliability, also seriously affect the normal use of gas equipment, or even restrict the selection of integrated artistic route.It is burnt in combustion gas
The removal technique of oil mainly has physics mode (condensation+washing, filtering/electric tar etc.) and chemical mode (thermal cracking, catalytic pyrolysis
Deng), from the point of view of current practice, but the effect obtained is unsatisfactory.Physics mode equipment investment is big, and operating cost is high, fortune
Row limited reliability, and the energy that tar carries tends to the 10%-15% for reaching fuel gases calorific value, goes using energy source after tar removing
Rate declines, and pollutes environment containing a large amount of waste water etc. are produced.Catalytic pyrolysis can obtain certain effect in the case where temperature is not high, but
Catalyst price is high, easily inactivation；Thermal cracking needs more than 1000 DEG C of high temperature, and Energy input is big.Utilize moving bed pyrolysis
After producing combustion gas, sent combustion gas as fluidizing agent to fluidized-bed gasification furnace, tar can obtain greatly in high temperature aerobic environment
The decomposition of amount, meanwhile, in hot environment, cracking of the breeze to tar also has catalytic action.By high temperature in fluid bed with
And the collective effect of charcoal catalysis, the tar content in combustion gas can be greatly reduced, lift combustion gas quality and yield.(9) combination dress
The advantage of putting is embodied in：1) compared with pyrolysis installation, traditional handicraft is relatively low using indirect type heat exchange efficiency, direct contact type pyrolysis work
Skill tar is higher, and charcoal conversion ratio is low, and product is single.Both heat exchange efficiency is high for combination unit, and treating capacity is big, at the same technique flexibility ratio compared with
Height, can formulate process route according to the different purpose such as heat supply or production charcoal.2) compared with fixed-bed gasification, combination unit
1. material existing for fixed bed is uneven, cloth wind is uneven, reaction is uneven for energy solution, and easy coking and reaction are endless congruent scarce
The shortcomings of point, 2. fixed bed gasification intensity is low, and treating capacity is small, and equipment investment cost is high, 3. fixed carbon conversion is incomplete, gasification effect
Rate is low, the shortcomings such as energy utilization rate is low.3) compared with fluid bed, it is uneven, chemical that combination unit can solve material physical characteristic
Characteristic is uneven, and fluidization process realization is more difficult, and the continuous cycle of operation is short, anti-load fluctuation energy force difference, and charging returning charge is difficult
Etc. many drawbacks.4) compared with existing combination unit, it is independent with gasification reaction that this combination unit not only solves pyrolytic reaction
Control, also utilizes segment processing thinking, it is intended to solves the problems, such as 1. pollution problem during biomass pyrogenation gasification 2. high heating value
3. fluid bed charging homogenization problem 4. the anti-load fluctuation problem of fluid bed 5. fluidized-bed temperature with flow control problem 6. and
The problem of system continuous long-period stable operation, there is stronger technical advantage and application value.
Brief description of the drawings
Fig. 1 is the structure diagram of embodiment one；
Fig. 2 is the structure diagram of embodiment two.
Embodiment
Invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figure 1, a kind of knockdown pyrolysis gasifying device, wherein, including spiral pyrolysis gasification furnace 01, in spiral heat
01 side of solution gasification furnace is equipped with the fluidized-bed gasification furnace 02 connected with spiral pyrolysis gasification furnace 01, and on fluidized-bed gasification furnace 02
The cyclone separator 03 and cyclone dust collectors 04 being equipped with.Spiral pyrolysis gasification furnace 01 includes burner hearth 11, is equipped with burner hearth 11
Feed inlet 12, the first gasification agent inlet 13 being equipped with burner hearth 11, the first gas outlet 14 being equipped with burner hearth 11, in stove
Slag-drip opening 15 that thorax 11 is equipped with, the air distribution plate 16 being equipped with burner hearth 11, be equipped with above air distribution plate 16 and cross burner hearth 11
The driver 19 being equipped with main shaft 17 and the helical blade 18 being equipped with main shaft 17, and 17 end of main shaft outside burner hearth 11.
Fluidized-bed gasification furnace 02 includes settling section burner hearth 21 from top to bottom successively, changeover portion burner hearth 22, dilute phase section burner hearth 23, close phase section
Burner hearth 24, isobaric bellows 26, and close 24 bottom of phase section burner hearth are equipped with the fire grate 25 with blast cap 27, and are connected on fire grate 25 and pass through
The scum pipe 28 of logical equipressure bellows 26.21 side of settling section burner hearth is provided with the second gas outlet 29, the second gas outlet 29 with
Cyclone separator 03 is connected；Cyclone separator 03 is connected with cyclone dust collectors 04.Close 24 middle and upper part side of phase section burner hearth is provided with
Feed inlet 12, feed inlet 12 are connected with feeding screw 210.Slag-drip opening 15 is connected with feeding screw 210.Close phase section burner hearth 24
Middle and lower part side is provided with the second fuel gas inlet 223.23 middle and lower part side of dilute phase section burner hearth is provided with the first fuel gas inlet 221.
Isobaric 26 entrance of bellows is connected with the first air blower 212 of supply air.The first high-temperature fuel gas is communicated with cyclone dust collectors 04
Pressuring machine 213, the first high-temperature fuel gas pressuring machine 213 are connected with the first gasification agent inlet 13, the first high-temperature fuel gas pressuring machine 213 with
The combustion gas output terminal 214 of discharge combustion gas is provided between first gasification agent inlet 13.The discharge gate of 03 bottom of cyclone separator with
Feeding screw 210 connects, and star-shaped discharge valve is provided between the discharge gate of 03 bottom of feeding screw 210 and cyclone separator
215.The first gas-purification tank 211 is connected with first gas outlet 14, the first gas-purification tank 211 enters with the first combustion gas respectively
Mouth 221 is connected with the second fuel gas inlet 223.Gas outlet 41 and flying dust outlet 42 are provided with cyclone dust collectors 04.
Embodiment two
As shown in Fig. 2, a kind of knockdown pyrolysis gasifying device, wherein, including spiral pyrolysis gasification furnace 01, in spiral heat
01 side of solution gasification furnace is equipped with the fluidized-bed gasification furnace 02 connected with spiral pyrolysis gasification furnace 01, and on fluidized-bed gasification furnace 02
The cyclone separator 03 and cyclone dust collectors 04 being equipped with.Spiral pyrolysis gasification furnace 01 includes burner hearth 11, is equipped with burner hearth 11
Feed inlet 12, the first gasification agent inlet 13 being equipped with burner hearth 11, the first gas outlet 14 being equipped with burner hearth 11, in stove
Slag-drip opening 15 that thorax 11 is equipped with, the air distribution plate 16 being equipped with burner hearth 11, be equipped with above air distribution plate 16 and cross burner hearth 11
The driver 19 being equipped with main shaft 17 and the helical blade 18 being equipped with main shaft 17, and 17 end of main shaft outside burner hearth 11.
Fluidized-bed gasification furnace includes settling section burner hearth 21, changeover portion burner hearth 22, dilute phase section burner hearth 23, close phase section stove from top to bottom successively
Thorax 24, isobaric bellows 26, and close 24 bottom of phase section burner hearth are equipped with the fire grate 25 with blast cap 27, and are connected on fire grate 25 and penetrate through
28. settling section burner hearth of scum pipe, 21 side of isobaric bellows 26 is provided with the second gas outlet 29, the second gas outlet 29 and rotation
Wind separator 03 is connected, and cyclone separator 03 is connected with cyclone dust collectors 04.Close 24 middle and upper part side of phase section burner hearth be provided with into
Material mouth 12, feed inlet 12 are connected with feeding screw 210.Slag-drip opening 15 is connected with feeding screw 210.In close phase section burner hearth 24
Lower side is provided with the second gasification agent inlet 220.23 middle and lower part side of dilute phase section burner hearth is provided with the first fuel gas inlet 221.
The second air blower 216 for once filling into air is set on the first gasification agent inlet 13, and the second gasification agent inlet 220 has secondary benefit
Enter the 3rd air blower 217 of air.First gas outlet 14 is provided with the second gas-purification tank 218.Second gas-purification tank 218
On be provided with the second high-temperature fuel gas pressuring machine 219, the second high-temperature fuel gas pressuring machine 219 is respectively with the first fuel gas inlet 221 and waiting
Press the connection of 26 entrance of bellows.Gas outlet 41 and flying dust outlet 42 are provided with cyclone dust collectors 04.The technical problem of solution is
By increasing fluidized-bed gasification furnace 02, the biomass that spiral pyrolysis oven only need to be by material conversion for uniform particle sizes after spiral pyrolysis oven
Charcoal and pyrolysis combustion gas, without the raw material charcoal is further processed, can reduce the reaction time, improve treatment scale, at the same time
Make device miniaturization, shorten the shortcomings that spiral pyrolysis gasification furnace 01 rotates shaft length, overcomes spiral moving bed reliability low；Particle diameter
Uniform biomass carbon carries out gasification reaction in fluidized-bed gasification furnace 02, and spiral 01 efficiency of carbon con version of pyrolysis gasification furnace can be overcome low
The shortcomings that.The effect of the above problem is that biomass pyrogenation gasification technique sets spiral pyrolytic gasification before fluidized-bed gasification furnace 02
Stove 01 pre-processes biomass material, generates the laggard fluidized bed gasification furnace 02 of even-grained biomass carbon, can overcome
The shortcomings of dependence of the fluidized-bed gasification furnace 02 to raw material type and granularity, improve the intensity of gasification and the gasification of biomass pyrogenation gasification
Efficiency, the shortcomings that overcoming 02 equipment interoperability of fluidized-bed gasification furnace poor；The pyrolysis gas that spiral pyrolysis gasification furnace 01 produces is than tradition
02 gasification agent temperature of fluidized-bed gasification furnace is low, during gasifying agent as fluidized-bed gasification furnace 02, only need to fill into a small amount of air just
Higher gasification temperature is can reach, can effectively reduce the consumption of gasifying agent during biomass pyrogenation gasification；Utilize spiral heat
Gasifying agent of the pyrolysis gas of the generation of gasification furnace 01 as fluidized-bed gasification furnace 02 is solved, is entered in the second gasifying agent of close phase section burner hearth 24
Mouth 220 fills into the temperature that suitable air is used for separately adjustable fluidized-bed gasification furnace 02, can increase fluidized-bed gasification furnace 02 to negative
The adaptability of lotus fluctuation, it is ensured that fluid bed remains the operating condition of efficient stable；By spiral pyrolysis oven to biomass
Pre- carbonization treatment is carried out, breeze ash fusion point can be improved with bed material in gasification furnace in fluid bed, overcome fluidized-bed gasification furnace 02
The shortcomings that high temperature pyrolysis and gasification low because of biomass ash fusion point easy coking, while reaction temperature can be improved, and using being taken in pyrolysis gas
The vapor of band carries out water gas reaction with fixed carbon, and charcoal conversion ratio improves, and gasification efficiency improves, while can also increase combustion gas production
Amount and fuel gases calorific value；After producing pyrolysis gas using spiral pyrolysis oven, sent pyrolysis gas as fluidizing agent to fluidized gasification
In stove 02, tar can obtain substantial amounts of decomposition in high temperature aerobic environment, and in hot environment, cracking of the breeze to tar is also
With catalytic action, the collective effect being catalyzed by high temperature in fluidized-bed gasification furnace 02 and charcoal, can be greatly reduced in combustion gas
Tar content, combustion gas quality and yield improve；Using spiral pyrolysis oven, in suitable temperature progress pyrolytic reaction, biomass
Organochlorine separated out in the form of hydrogen chloride, by being pyrolyzed the dechlorination purified treatment of combustion gas, reduce biological fuel gas Zhong bioxin
Deng the content of extremely toxic substance.
Operation principle：
Biomass material through crushing enters spiral pyrolysis gasification furnace 01 by spiral 01 feed inlet 12 of pyrolysis gasification furnace, at the same time
Air is passed through into spiral pyrolysis gasification furnace 01 by the first air blower 212, during material carries out in spiral pyrolysis gasification furnace 01
Warm pyrolytic reaction generation pyrolysis gas and the biomass carbon of uniform particle sizes.The pyrolysis gas of generation passes through after the purification of gas-purification tank
High-temperature fuel gas pressuring machine divides two-way to be delivered to fluidized-bed gasification furnace 02, wherein sending all the way to 02 burner hearth of fluidized-bed gasification furnace as stream
Change medium, another way is sent to the first fuel gas inlet 221 of 02 dilute phase section burner hearth 23 of fluidized-bed gasification furnace；The biomass carbon warp of generation
02 feed system of fluidized-bed gasification furnace enters the close phase section burner hearth 24 of fluidized-bed gasification furnace 02, while passes through the 3rd air blower 217 2
Secondary to fill into air to 02 close phase section of fluidized-bed gasification furnace, biomass carbon, pyrolysis gas and air carry out in fluidized-bed gasification furnace 02
Complicated gasification reaction, generates biological fuel gas and breeze.The biological fuel gas of generation is through cyclone separator 03 and cyclone dust collectors
Discharge system after 04 processing；The breeze of generation is by 02 scum pipe of fluidized-bed gasification furnace, 28 discharge system.
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 (8)
1. a kind of knockdown pyrolysis gasifying device, it is characterised in that including spiral pyrolysis gasification furnace, in spiral pyrolysis gasification furnace
Side is equipped with the fluidized-bed gasification furnace connected with spiral pyrolysis gasification furnace, and the cyclone separator being equipped with fluidized-bed gasification furnace
And cyclone dust collectors；
The spiral pyrolysis gasification furnace includes burner hearth, the feed inlet being equipped with burner hearth, the first gasification being equipped with burner hearth
Agent entrance, the first gas outlet being equipped with burner hearth, the slag-drip opening being equipped with burner hearth, the air distribution plate being equipped with burner hearth,
It is equipped with the helical blade that crosses the main shaft of burner hearth and be equipped with main shaft above air distribution plate, and on the spindle nose outside burner hearth
The driver being equipped with；
The fluidized-bed gasification furnace includes settling section burner hearth from top to bottom successively, changeover portion burner hearth, dilute phase section burner hearth, close phase
Section burner hearth, isobaric bellows, and close phase section burner hearth bottom are equipped with the fire grate with blast cap, are also connected on fire grate and penetrate through isobaric wind
The scum pipe of case；
The settling section burner hearth side is provided with the second gas outlet, second gas outlet and cyclone separator phase
Even；The cyclone separator is connected with cyclone dust collectors；The cyclone separator bottom sets discharge gate；
The close phase section burner hearth middle and upper part side is provided with feed inlet, and the feed inlet is connected with feeding screw；It is described
Slag-drip opening be connected with feeding screw；
The dilute phase section burner hearth middle and lower part side is provided with the first fuel gas inlet；
The close phase section burner hearth middle and lower part side is provided with the second fuel gas inlet.
2. a kind of knockdown pyrolysis gasifying device according to claim 1, it is characterised in that the isobaric bellows enter
Mouth is connected with the first air blower of supply air.
A kind of 3. knockdown pyrolysis gasifying device according to claim 2, it is characterised in that the cyclone dust collectors
On be communicated with the first high-temperature fuel gas pressuring machine；The first high-temperature fuel gas pressuring machine is connected with the first gasification agent inlet；It is described
The first high-temperature fuel gas pressuring machine and the first gasification agent inlet between be provided with discharge combustion gas combustion gas output terminal.
A kind of 4. knockdown pyrolysis gasifying device according to claim 1,2 or 3, it is characterised in that the whirlwind
The discharge gate of separator bottom is connected with feeding screw；The discharge gate of the feeding screw and cyclone separator bottom it
Between be provided with star-shaped discharge valve.
5. a kind of knockdown pyrolysis gasifying device according to claim 4, it is characterised in that first combustion gas goes out
The first gas-purification tank is connected with mouthful；The first gas-purification tank respectively with the first fuel gas inlet and the second fuel gas inlet
Connection.
A kind of 6. knockdown pyrolysis gasifying device according to claim 2, it is characterised in that first gasifying agent
The second air blower for once blasting air is set on entrance；It is provided with the close phase section burner hearth and secondary fills into the of air
Three air blowers.
7. a kind of knockdown pyrolysis gasifying device according to claim 6, it is characterised in that first combustion gas goes out
Mouth is provided with the second gas-purification tank；The second high-temperature fuel gas pressuring machine is provided with the second gas-purification tank；Described
Second high-temperature fuel gas pressuring machine is connected with the first fuel gas inlet and isobaric bellows entrance respectively.
8. a kind of knockdown pyrolysis gasifying device according to claim 6 or 7, it is characterised in that the whirlwind removes
Gas outlet and flying dust outlet are provided with dirt device.
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| CN201810024062.4A CN107974301A (en) | 2018-01-10 | 2018-01-10 | A kind of knockdown pyrolysis gasifying device |
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| CN201810024062.4A CN107974301A (en) | 2018-01-10 | 2018-01-10 | A kind of knockdown pyrolysis gasifying device |
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| CN110848665A (en) * | 2019-11-19 | 2020-02-28 | 山东百川同创能源有限公司 | Steam/carbon combined production process based on biomass pyrolysis gasification and combustion and application thereof |
| CN111321010A (en) * | 2018-12-13 | 2020-06-23 | 浙江天禄环境科技有限公司 | Method and system for preparing synthesis gas by utilizing low-rank coal in multiple ways |
| CN113072982A (en) * | 2021-03-11 | 2021-07-06 | 西安交通大学 | Treatment system and method for sludge low-temperature pyrolysis coupling biomass catalytic gasification |
| CN114874815A (en) * | 2022-04-29 | 2022-08-09 | 东南大学 | Device and method for preparing high-quality synthesis gas by gasifying high-water-content traditional Chinese medicine residues |
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