CN108728166A - Dry thermal cracking system and biomass gasification system for biomass gasifying furnace - Google Patents
Dry thermal cracking system and biomass gasification system for biomass gasifying furnace Download PDFInfo
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- CN108728166A CN108728166A CN201710245870.9A CN201710245870A CN108728166A CN 108728166 A CN108728166 A CN 108728166A CN 201710245870 A CN201710245870 A CN 201710245870A CN 108728166 A CN108728166 A CN 108728166A
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- 239000002028 Biomass Substances 0.000 title claims abstract description 68
- 238000002309 gasification Methods 0.000 title claims abstract description 63
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 34
- 238000000197 pyrolysis Methods 0.000 claims abstract description 130
- 230000008676 import Effects 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 57
- 241000209094 Oryza Species 0.000 description 10
- 235000007164 Oryza sativa Nutrition 0.000 description 10
- 235000009566 rice Nutrition 0.000 description 10
- 239000010902 straw Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- 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
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a kind of dry thermal cracking system for biomass gasifying furnace and a kind of biomass gasification systems including the dry thermal cracking system.The dry thermal cracking system includes dry segment structure, pyrolysis segment structure, flapper (5), dryer section structure level or is obliquely installed, and pyrolysis segment structure is obliquely installed horizontal by sharp angle α；Dry segment structure includes the dryer section jacket outside cylinder (2) welded with one heart and dryer section auger (3), heat exchanger fin, dryer section heat gas import (4), dryer section heat gas export (1), moisture outlet (11)；Pyrolysis segment structure includes the pyrolysis section jacket outside cylinder (7) welded with one heart and pyrolysis section auger (8), heat exchanger fin, pyrolysis section heat gas import (9), pyrolysis section heat gas outlet (6).Dry thermal cracking system of the present invention is conducive to energy consumption, the environmental protection that biomass comprehensive efficiently utilizes, reduces enterprise with biomass gasification system, has excellent scientific research value and market value.
Description
Technical field
The invention belongs to biomass gasification technology fields, and in particular to a kind of dry thermal cracking system for biomass gasifying furnace
System and a kind of biomass gasification system including the dry thermal cracking system.
Background technology
Biomass energy refers to by photosynthesis and the various organism photosynthesis that generate utilize the carbon dioxide in air
With the water in soil, the solar energy of absorption is converted into energy caused by carbohydrate and oxygen.Biomass generally includes
The several types such as agricultural wastes, timber and forest industry waste, fowl and animal excrement, application of city life garbage and energy crop.
Biomass energy has the characteristics that：Belong to regenerative resource, it is ensured that the continuous utilization of the energy；Type is more and is distributed extensively, is convenient for
Local use, utilization are various informative；The relevant technologies are ripe, can be depot good；Energy-saving and environmental protection effect is good.Gasification of biomass
Be using in air oxygen or oxygenate make gasifying agent, under the high temperature conditions convert the combustible constituent in biomass fuel to
The thermal chemical reaction of combustible gas (mainly hydrogen, carbon monoxide and methane).In the 1970s, Ghaly et al. is put forward for the first time
It is this containing can low density fuel (GahlyM, PiskorzJ, et al.The Hydro that gasification technology be applied to biomass
Gasification of wood [J] .IndEngCheMres, 1988,27：256-264).It is noted that biomass
Volatile matter content generally 76%~86%, can make a large amount of volatile matter object at relatively low temperature after biomass is heated
Matter is precipitated (Li Chuantong, new energy and renewable energy technologies [M], publishing house of Southeast China University, 2005).
Gasification furnace is the capital equipment of biomass gasification reaction.It is different by the method for operation of gasification furnace, it is broadly divided into fixation
Bed, fluid bed and revolving bed three types.Gasification furnace is mainly fixed bed gas used by domestic biomass gasification process at present
Change stove and fluidized-bed gasification furnace.There are many different forms again for fixed-bed gasification furnace and fluidized-bed gasification furnace.
With the further further investigation efficiently utilized to biomass comprehensive, in the prior art, researcher has proposed
Biomass graded gasification technology.If Chinese patent CN101144022A discloses a kind of three-section type biomass gasifying furnace, that is, divide
For gasification section three parts under gasification section on pyrolysis, fire grate and fire grate；However, in the technical scheme, lack biomass dryer section,
Insufficient so as to cause pyrolytic process, Volatile is incomplete, and gasification section temperature is insufficient, and heat is inadequate, integrated gasification efficiency
The technical problems such as reduction.Inventor is had found by analysis, since moisture content is higher in biomass, in the pyrolysis gas that pyrolysis section generates
Moisture is excessively high, is reduced so as to cause temperature in gasification section, and the intensity of gasification and gasification efficiency is caused to decline therewith, and gasify gas
The content of middle tar is higher, this not only increases downstream purification system burden, causes secondary pollution, and reduces energy conversion
Rate.
Invention content
Technical solution provided by the present invention aims to solve the problem that the above-mentioned technical problems in the prior art, inventor propose
A kind of system for capableing of first fully dry moisture carrying out pyrolysis again is counted and produced, containing for moisture in biomass can be effectively reduced
Amount, to significantly improve gasification section temperature, enhances the intensity of gasification, reduces the content of tar in gasification gas.
Therefore, the first aspect of the present invention provides a kind of dry thermal cracking system for biomass gasifying furnace comprising
Dry segment structure is pyrolyzed the flapper of segment structure and the detachably connected dry segment structure and the pyrolysis segment structure；
Wherein, it dryer section structure level or is obliquely installed, pyrolysis segment structure is obliquely installed horizontal by sharp angle α；
Wherein, the dry segment structure includes the dryer section jacket outside cylinder welded with one heart, dryer section auger, also, dry
Section jacket outside cylinder is sheathed on dryer section auger, and the length of dryer section jacket outside cylinder is less than dryer section auger；Wherein, in dryer section
Be welded with heat exchanger fin between jacket outside cylinder and dryer section auger, dryer section jacket outside cylinder surface offer dryer section heat gas into
Mouth, the outlet of dryer section heat gas；Dryer section auger includes dryer section feed inlet, dryer section discharge port；
Wherein, the pyrolysis segment structure includes the pyrolysis section jacket outside cylinder welded with one heart, pyrolysis section auger, also, is pyrolyzed
Section jacket outside cylinder is sheathed on pyrolysis section auger, and the length of pyrolysis section jacket outside cylinder is less than pyrolysis section auger；Wherein, in pyrolysis section
Also heat exchanger fin is welded between jacket outside cylinder and pyrolysis section auger, pyrolysis section jacket outside cylinder surface offers pyrolysis section heat gas
Import, the outlet of pyrolysis section heat gas；Pyrolysis section auger includes pyrolysis section feed inlet, pyrolysis section discharge port；
Also, one end of the flapper is connected to the dryer section discharge port, and the other end is connected to the pyrolysis section
Feed inlet；On the side opposite with the dryer section discharge port of the dryer section auger, it is welded with moisture outlet.
It is worth noting that when the dry thermal cracking system operation, the biomass from feed bin enters from dryer section feed inlet
The dryer section auger, it is fully dry under the promotion of the dryer section auger, it then, is exported from dryer section discharge port, through lock
Gas device enters pyrolysis section feed inlet, and fully after pyrolysis, the pyrolysis gas and biomass char of generation enter biology by pyrolysis section discharge port
In matter gasification furnace, to implement to be further processed；Wherein, heat gas derives from the High Temperature Gas generated through the biomass gasifying furnace
Change the gas after gas heat exchange, the heat gas each leads into the import of dryer section heat gas and pyrolysis section heat gas import,
It is guided by each heat exchanger fin, dryer section auger and pyrolysis section auger is heated respectively, finally exported from dryer section heat gas,
Pyrolysis section heat gas outlet output.Especially since being welded with moisture outlet on the dryer section auger, generated in dryer section
A large amount of steam can be discharged from the moisture outlet, to sufficiently lower the content of moisture in biomass before pyrolysis.
Preferably, in above-mentioned dry thermal cracking system, the both ends of the flapper pass through flange and the dryer section respectively
Auger is connected with the pyrolysis section auger.
Preferably, in above-mentioned dry thermal cracking system, the material of the dryer section auger and/or the pyrolysis section auger is
Cast iron or stainless steel.
Preferably, in above-mentioned dry thermal cracking system, sharp angle α=5 °~10 °.Therefore, horizontal by 5 °~10 °
The pyrolysis segment structure of angle setting conveys smooth convenient for material.
Preferably, in above-mentioned dry thermal cracking system, the dryer section heat gas import, the dryer section heat gas
Outlet is opened in the downside of the dryer section jacket outside cylinder.
Preferably, in above-mentioned dry thermal cracking system, the pyrolysis section heat gas import, the pyrolysis section heat gas
Outlet is opened in the downside of the pyrolysis section jacket outside cylinder.
In addition, auger speed setting unit can also be arranged in the dry thermal cracking system, to adjust dryer section strand in time
Imperial, pyrolysis section auger rotating speed；Meanwhile it can be arranged before the import of dryer section heat gas and pyrolysis section heat gas import respectively
Heating gas flow regulating valve, suitably to adjust the flow of heat gas；It is highly preferred that the auger rotating speed can be arranged simultaneously
Regulating device and heating gas flow regulating valve are more accurately controlled for the biomass for different in moisture content,
To obtain better biomass dry thermal cracking effect.
The second aspect of the present invention additionally provides a kind of biomass gasification system, and it includes biomass graded gasification furnaces and this
Dry thermal cracking system described in invention first aspect；Wherein, the pyrolysis section discharge port stretches into the biomass graded gasification furnace
Upper of furnace body.
Preferably, in above-mentioned biomass gasification system, the biomass graded gasification furnace outer layer is equipped with insulating layer, and stove
It is provided with steel fire grate in vivo, furnace body is divided into top gasification section and lower part gasification section；Furnace body entrance is provided with circle
Tubular aditus laryngis, the cross-sectional area of the aditus laryngis are less than the cross-sectional area of the furnace body；Also, it is uniformly arranged on the cylinder of the aditus laryngis
There is air intake duct, to be connected to outside stove.
It is further preferred that in above-mentioned biomass gasification system, the cross-sectional area of the aditus laryngis is the transversal of the furnace body
0.55~0.65 times of area.
It is further preferred that in above-mentioned biomass gasification system, the air intake duct is obliquely installed.
In addition, provided with cylindrical shape aditus laryngis, the pyrolysis section knot that is obliquely installed horizontal by sharp angle α
Structure is conducive to the high temperature heat radiation effect for reinforcing the aditus laryngis section to pyrolysis section, to improve pyrolysis temperature, enhances pyrolysis instead
It answers.
In conclusion compared with the existing technology, technical solution provided by the present invention mainly has following technical advantage：This
The invention dry thermal cracking system has fully considered the drying property and pyrolysis characteristics of biomass, can effectively reduce and be passed through gasification
Moisture in stove in pyrolysis gas improves gasification temperature, avoids the loss of heat in gasification；Drying of the present invention
Pyrolysis system effectively prevents the steam generated in drying process from flowing into pyrolysis segment structure using flapper, while also ensuring pyrolysis
Micro-vacuum state is maintained in segment structure, to reinforce being pyrolyzed the Natural Circulation heat transfer effect of gas in segment structure；In addition the heat
On the one hand the inclination arrangement of solution segment structure ensure that the smoothness of material conveying, on the other hand can also reinforce aditus laryngis section to pyrolysis section
High temperature heat radiation effect, to improve pyrolysis temperature, enhance pyrolytic reaction.
Therefore, the setting and use of dry thermal cracking system of the present invention and biomass gasification system, is conducive to biology
Matter comprehensive high-efficiency utilizes, and advantageously reduces the energy consumption of enterprise, is conducive to environmental protection；In short, dry heat provided by the present invention
Solution system has excellent scientific research value and market value with biomass gasification system.
Description of the drawings
Fig. 1 is that the structure of the dry thermal cracking system for biomass gasifying furnace described in one embodiment of the present of invention is shown
It is intended to；Wherein：1- dryer section heat gas exports, 2- dryer section jacket outside cylinders, 3- dryer section augers, 4- dryer section heat gas
Import, 5- flappers, the outlet of 6- pyrolysis section heat gas, 7- pyrolysis section jacket outside cylinders, 8- pyrolysis section augers, the heating of 9- pyrolysis sections
Gas feed, 10- biomass gasifying furnaces/biomass graded gasification furnace, 11- moisture outlets.
Specific implementation mode
The present invention is further elaborated With reference to embodiment, but the present invention is not limited to following embodiment party
Formula.
As shown in Figure 1, a kind of dry thermal cracking system for biomass gasifying furnace, including dry segment structure, pyrolysis section knot
The flapper 5 of structure and the detachably connected dry segment structure and the pyrolysis segment structure, wherein dryer section constitution water
Flat setting, pyrolysis segment structure are arranged horizontal by 5 ° of inclined at acute angles；
Wherein, the dry segment structure includes the dryer section jacket outside cylinder 2 welded with one heart, dryer section auger 3, also, dry
Dry section of jacket outside cylinder 2 is sheathed on dryer section auger 3, and the length of dryer section jacket outside cylinder 2 is less than dryer section auger 3；Wherein, exist
Heat exchanger fin (not shown), the table of dryer section jacket outside cylinder 2 are welded between dryer section jacket outside cylinder 2 and dryer section auger 3
Face offers dryer section heat gas import 4, dryer section heat gas outlet 1；Dryer section auger 3 include dryer section feed inlet,
Dryer section discharge port；
Wherein, the pyrolysis segment structure includes the pyrolysis section jacket outside cylinder 7 welded with one heart, pyrolysis section auger 8, also, hot
Solution section jacket outside cylinder 7 is sheathed on pyrolysis section auger 8, and the length of pyrolysis section jacket outside cylinder 7 is less than pyrolysis section auger 8；Wherein, exist
Also heat exchanger fin (not shown) is welded between pyrolysis section jacket outside cylinder 7 and pyrolysis section auger 8, pyrolysis section jacket outside cylinder 7
Surface offers pyrolysis section heat gas import 9, pyrolysis section heat gas outlet 6；Pyrolysis section auger 8 includes pyrolysis section feeding
Mouth, pyrolysis section discharge port；
Also, one end of the flapper 5 is connected to the dryer section discharge port, and the other end is connected to the pyrolysis section
Feed inlet；On the side opposite with the dryer section discharge port of the dryer section auger 3, it is welded with moisture outlet 11.
In addition, be worth adding, in above-mentioned dry thermal cracking system, dryer section auger 3, pyrolysis section auger 8 tool
Body diameter needs to be determined according to inlet amount, treating capacity respectively with length, and the tool of dryer section jacket outside cylinder 2, pyrolysis section jacket outside cylinder 7
Body diameter also needs the particular requirement according to dry tenacity, pyrolysis intensity to determine.Also, the moisture outlet 11 remains smooth
It is logical, for the steam generated in biomass drying process to be discharged in real time.
In a preferred embodiment, the both ends of the flapper 5 pass through flange and the dryer section auger 3 and institute respectively
State the connection of pyrolysis section auger 8.In addition, the capacity of the flapper 5 is handled according to the biomass maximum of the dry thermal cracking system
Amount configuration.
In a preferred embodiment, the material of the dryer section auger 3 and the pyrolysis section auger 8 is stainless steel.
In a preferred embodiment, the dryer section heat gas import 4, dryer section heat gas outlet 1 are equal
It is opened in the downside of the dryer section jacket outside cylinder 2.
In a preferred embodiment, the pyrolysis section heat gas import 9, pyrolysis section heat gas outlet 6 are equal
It is opened in the downside of the pyrolysis section jacket outside cylinder 7.
In a further preferred embodiment, the dryer section heat gas import 4, the dryer section heat gas
Outlet 1 and the dryer section feed inlet, the dryer section discharge port counter-flow arrangement, i.e., the described dryer section heat gas export 1 and set
It sets in one end of the close dryer section feed inlet, and the dryer section heat gas import 4 is positioned close to the dryer section
One end of discharge port.
In a further preferred embodiment, the pyrolysis section heat gas import 9, the pyrolysis section heat gas
Outlet 6 and the pyrolysis section feed inlet, the pyrolysis section discharge port counter-flow arrangement, i.e., the described pyrolysis section heat gas export 6 and set
It sets in one end of the close pyrolysis section feed inlet, and the pyrolysis section heat gas import 9 is positioned close to the pyrolysis section
One end of discharge port.
" counter-flow arrangement " mode in preferred embodiment above is conducive to the heat exchange between heat gas and material and more fills
Point.
In a further preferred embodiment, auger rotational speed regulation dress is additionally provided in the dry thermal cracking system
It sets, the rotating speed of the dryer section auger 3, pyrolysis section auger 8 can be adjusted respectively.
In a further preferred embodiment, in the dryer section heat gas import 4 and pyrolysis section heat gas
A heating gas flow regulating valve, the flow for adjusting heat gas are each provided with before import 9.
A kind of biomass gasification system, it includes the dryings described in biomass graded gasification furnace 10 and first aspect present invention
Pyrolysis system；Wherein, the pyrolysis section discharge port stretches into the upper of furnace body of the biomass graded gasification furnace.
In a preferred embodiment, the biomass graded gasification furnace outer layer is equipped with insulating layer, and is provided in furnace body
Furnace body is divided into top gasification section and lower part gasification section by steel fire grate；Furnace body entrance is provided with cylindrical shape aditus laryngis, institute
The cross-sectional area for stating aditus laryngis is less than the cross-sectional area of the furnace body；Also, it is evenly arranged with air inlet on the cylinder of the aditus laryngis
Pipe, to be connected to outside stove.
In a further preferred embodiment, the cross-sectional area of the aditus laryngis is the 0.55 of the cross-sectional area of the furnace body
~0.65 times.
In a further preferred embodiment, the air intake duct is obliquely installed.
Embodiment 1
The rice straw material sample that inventor chooses three kinds of different water cuts (13.45%, 16.6% and 21.4%) carries out heat
Known to weight analysis：Weight-loss ratio of the rice straw material sample of these three different water cuts before 150 DEG C be respectively 5.0%,
10.5% and 19.0%, show the increase with moisture content, weightless bigger, the heat of this discrete consuming is also bigger；In temperature height
When 230 DEG C, temperature that the maximum weightless peak of the rice straw material sample of these three different water cuts occurs is respectively 330 DEG C, and 355
DEG C and 360 DEG C, show the increase with water content, the temperature obvious postpone that maximum weightless peak occurs, this shows due to inherent water
Presence postponed biomass pyrolytic reaction generation；By to thermal decomposition product analysis it is found that with moisture increase,
Semicoke yield is smaller；Therefore moisture is higher, and the required energy of rice straw drying stage is also more, the Pyrolysis of rice straw
It should can postpone, semicoke yield is smaller.
Inventor uses the biomass gasification system comprising dry thermal cracking system as shown in Figure 1 to moisture content for 16%
Rice straw material sample carries out gasification of biomass experiment.In processing procedure, rice straw raw material enters the dryer section by feed bin first
Auger dries certain time to ensure fully to remove the moisture in rice straw raw material under its promotion, obtains dry rice straw raw material；
Due to the presence of flapper, the steam generated in drying process is only capable of being discharged by moisture outlet, and dry rice straw raw material is then
It is transported in pyrolysis section auger by flapper；Fully after pyrolysis, generate with CO, CO2、CH4, pyrolysis gas based on tar etc.
And biomass char, then entered in biomass gasifying furnace by pyrolysis section discharge port, is further processed and reacts to implement.Experiment hair
Existing, after well-dried pyrolysis, aditus laryngis section burning mean temperature is improved to 1000 DEG C, and maximum temperature is up to 1100 DEG C, excellent effect.
It can be seen that dry thermal cracking system provided by the present invention, it is difficult in biomass gasification process to efficiently solve
Topic --- partial oxidation section temperature is insufficient, and heat provides insufficient problem, successfully provides a step heat and is decomposed into multistep, to
The temperature of partial oxidation section in gasification section is improved, pyrolysis significant effect improves, and " volatile matter " precipitation significantly improves.
Specific embodiments of the present invention are described in detail above, but it is intended only as example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
It substitutes also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by impartial conversion and
Modification, all should be contained within the scope of the invention.
Claims (10)
1. a kind of dry thermal cracking system for biomass gasifying furnace, which is characterized in that including dry segment structure, pyrolysis section knot
The flapper of structure and the detachably connected dry segment structure and the pyrolysis segment structure；Wherein, dryer section structure level
Or be obliquely installed, pyrolysis segment structure is obliquely installed horizontal by sharp angle α；
Wherein, the dry segment structure includes the dryer section jacket outside cylinder welded with one heart, dryer section auger, also, dryer section is pressed from both sides
It covers outer sleeve to be set on dryer section auger, the length of dryer section jacket outside cylinder is less than dryer section auger；Wherein, in dryer section chuck
Be welded with heat exchanger fin between outer barrel and dryer section auger, dryer section jacket outside cylinder surface offer the import of dryer section heat gas,
Dryer section heat gas exports；Dryer section auger includes dryer section feed inlet, dryer section discharge port；
Wherein, the pyrolysis segment structure includes the pyrolysis section jacket outside cylinder welded with one heart, pyrolysis section auger, also, pyrolysis section presss from both sides
It covers outer sleeve to be set on pyrolysis section auger, the length of pyrolysis section jacket outside cylinder is less than pyrolysis section auger；Wherein, in pyrolysis section chuck
Also be welded with heat exchanger fin between outer barrel and pyrolysis section auger, pyrolysis section jacket outside cylinder surface offer pyrolysis section heat gas into
Mouth, the outlet of pyrolysis section heat gas；Pyrolysis section auger includes pyrolysis section feed inlet, pyrolysis section discharge port；
Also, one end of the flapper is connected to the dryer section discharge port, and the other end is connected to the pyrolysis section feeding
Mouthful；On the side opposite with the dryer section discharge port of the dryer section auger, it is welded with moisture outlet.
2. dry thermal cracking system according to claim 1, which is characterized in that the both ends of the flapper pass through flange respectively
It is connect with the dryer section auger and the pyrolysis section auger.
3. dry thermal cracking system according to claim 1, which is characterized in that the dryer section auger and/or the pyrolysis
The material of section auger is cast iron or stainless steel.
4. dry thermal cracking system according to claim 1, which is characterized in that sharp angle α=5 °~10 °.
5. dry thermal cracking system according to claim 1, which is characterized in that the dryer section heat gas import, described
Dryer section heat gas exports the downside for being opened in the dryer section jacket outside cylinder.
6. dry thermal cracking system according to claim 1, which is characterized in that the pyrolysis section heat gas import, described
Pyrolysis section heat gas exports the downside for being opened in the pyrolysis section jacket outside cylinder.
7. a kind of biomass gasification system, which is characterized in that comprising biomass graded gasification furnace and according in claim 1~6
Any one of them dry thermal cracking system；Wherein, the pyrolysis section discharge port stretches into the furnace body of the biomass graded gasification furnace
Top.
8. biomass gasification system according to claim 7, which is characterized in that the biomass graded gasification furnace outer layer is set
There is insulating layer, and be provided with steel fire grate in furnace body, furnace body is divided into top gasification section and lower part gasification section；Furnace body into
Cylindrical shape aditus laryngis is provided at mouthful, the cross-sectional area of the aditus laryngis is less than the cross-sectional area of the furnace body；Also, the cylinder of the aditus laryngis
Air intake duct is evenly arranged on body, to be connected to outside stove.
9. biomass gasification system according to claim 8, which is characterized in that the cross-sectional area of the aditus laryngis is the furnace body
0.55~0.65 times of cross-sectional area.
10. biomass gasification system according to claim 8, which is characterized in that the air intake duct is obliquely installed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066693B (en) * | 2019-04-25 | 2021-04-16 | 上海电气集团股份有限公司 | Two-stage biomass gasification power generation system and working condition switching method thereof |
| CN112892398A (en) * | 2021-03-03 | 2021-06-04 | 上海电气集团股份有限公司 | Spraying granulation drying system and drying method |
| CN114440222A (en) * | 2022-02-09 | 2022-05-06 | 上海电气集团股份有限公司 | Organic solid waste pyrolysis system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068789A1 (en) * | 2000-03-15 | 2001-09-20 | Cowi Rådgivende Ingeniører As | A method and a system for decomposition of moist fuel or other carbonaceous materials |
| CN1928013A (en) * | 2006-09-21 | 2007-03-14 | 武汉凯迪科技发展研究院有限公司 | Biomass deep dehydration carbonization continuous processing technology and device thereof |
| CN101144022A (en) * | 2007-11-01 | 2008-03-19 | 上海交通大学 | Three-stage biomass gasifier |
| CA2761137A1 (en) * | 2009-05-07 | 2010-11-11 | Lepez Conseils Finance Innovations - Lcfi | Method and apparatus for the energy densification of a material in the form of divided solids, with a view to obtaining pyrolysis oils for energy purposes |
| CN102226092A (en) * | 2011-05-30 | 2011-10-26 | 南京师范大学 | Continuous biomass low-temperature pyrolysis carbonization method and its carbonization furnace |
| CN202030707U (en) * | 2011-02-11 | 2011-11-09 | 浙江省林业科学研究院 | Carbonization converter being suitable for fine-particle mass raw material |
| CN202099245U (en) * | 2011-06-28 | 2012-01-04 | 西北化工研究院 | Pyrolysis reactor for powdered coal with low coal rank |
| CN206751744U (en) * | 2017-04-14 | 2017-12-15 | 上海电气集团股份有限公司 | Dry thermal cracking system and biomass gasification system for biomass gasifying furnace |
-
2017
- 2017-04-14 CN CN201710245870.9A patent/CN108728166B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068789A1 (en) * | 2000-03-15 | 2001-09-20 | Cowi Rådgivende Ingeniører As | A method and a system for decomposition of moist fuel or other carbonaceous materials |
| CN1928013A (en) * | 2006-09-21 | 2007-03-14 | 武汉凯迪科技发展研究院有限公司 | Biomass deep dehydration carbonization continuous processing technology and device thereof |
| CN101144022A (en) * | 2007-11-01 | 2008-03-19 | 上海交通大学 | Three-stage biomass gasifier |
| CA2761137A1 (en) * | 2009-05-07 | 2010-11-11 | Lepez Conseils Finance Innovations - Lcfi | Method and apparatus for the energy densification of a material in the form of divided solids, with a view to obtaining pyrolysis oils for energy purposes |
| CN202030707U (en) * | 2011-02-11 | 2011-11-09 | 浙江省林业科学研究院 | Carbonization converter being suitable for fine-particle mass raw material |
| CN102226092A (en) * | 2011-05-30 | 2011-10-26 | 南京师范大学 | Continuous biomass low-temperature pyrolysis carbonization method and its carbonization furnace |
| CN202099245U (en) * | 2011-06-28 | 2012-01-04 | 西北化工研究院 | Pyrolysis reactor for powdered coal with low coal rank |
| CN206751744U (en) * | 2017-04-14 | 2017-12-15 | 上海电气集团股份有限公司 | Dry thermal cracking system and biomass gasification system for biomass gasifying furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066693B (en) * | 2019-04-25 | 2021-04-16 | 上海电气集团股份有限公司 | Two-stage biomass gasification power generation system and working condition switching method thereof |
| CN112892398A (en) * | 2021-03-03 | 2021-06-04 | 上海电气集团股份有限公司 | Spraying granulation drying system and drying method |
| CN114440222A (en) * | 2022-02-09 | 2022-05-06 | 上海电气集团股份有限公司 | Organic solid waste pyrolysis system and method |
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