CN206051938U - One kind is from dedusting type biomass pyrolytic and cracking system - Google Patents
One kind is from dedusting type biomass pyrolytic and cracking system Download PDFInfo
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- CN206051938U CN206051938U CN201620662143.3U CN201620662143U CN206051938U CN 206051938 U CN206051938 U CN 206051938U CN 201620662143 U CN201620662143 U CN 201620662143U CN 206051938 U CN206051938 U CN 206051938U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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Abstract
This utility model belongs to biomass pyrolytic technical field, it is mainly a kind of based on heat accumulation type radiant tube heat from dedusting type biomass pyrolytic and cracking system.The system includes：Pyrolysis hopper；Pyrolysis and cracking reactor, including：The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas；And：Heat accumulation type radiant tube；Heat-insulated brick wall；Communication member；Grain bed dust arrester；Cracking gas cyclone separator, the cracking gas cyclone separator are connected with cracking gas outlet, semicoke conveyer device and spray column respectively；Spray column and fuel cartridge.The response system simple structure of the present utility model, easy to operate, uniformity of temperature profile, heats are good, can process the biomass of below 20mm, and raw material availability is high, are suitable to promote.
Description
Technical field
This utility model creates and belongs to biomass pyrolytic technical field, mainly a kind of to be heated based on heat accumulation type radiant tube
From dedusting type biomass pyrolytic and cracking system, to produce cleaning combustible gas.
Background technology
Biomass energy is the fourth-largest resource of the earth, while and the maximum regenerative resource of reserves.Biomass have distribution
Extensively, the features such as rich reserves, recyclability, low stain, it is one of most potential fossil energy alternative energy source.At present,
The recovery energy mode of biomass energy gasifies mainly with fermenting and producing fuel, biogas, fast pyrogenation, based on carbonization.Wherein,
Fermenting and producing fuel, biogas mainly apply herbaceous plant, the technology long the production cycle that its development is limited the shortcomings of yield is relatively low；
In terms of gasification production gas technology is then applied to generating, industrial supply more as fuel gases calorific value is low, there is certain limitation；Charcoal
The product that change technology is obtained is mainly based on solid biologic charcoal, it is difficult to substitute fossil energy scale application；Fast pyrogenation is referred to
Under conditions of anaerobic or limit oxygen, biomass are rapidly heated to 550 DEG C or so, bio oil, charcoal and pyrolysis gas are generated
Process.Pyrolytic technique is a kind of unique technology that biomass energy is converted into liquid fuel.However, through pyrolytic technique
The bio-oil components for obtaining are extremely complex, cause biology the shortcomings of pH value is relatively low, oxygen content is high, heat stability is poor, viscosity is big
Oil is difficult to directly utilize and store.Additionally, the last handling process of bio oil is complicated, effect on driving birds is not good and relatively costly so as to be difficult to
Industrial applications.Therefore, how to design all simple system of a kind of high-effective dust-removing, system structure and technological process becomes this area
The problem of urgent need to resolve.
Utility model content
This utility model is directed to the deficiencies in the prior art, designs and develops and be a kind of descending from dedusting type biomass heat accumulating type
Bed pyrolysis and cracking reaction system, the response system can be pyrolyzed and be cracked two kinds of operations, and the oil gas that pyrolysis chamber produces is entered
Grain bed dedusting, after grain bed dedusting, clean oil gas enters back into cracking room carries out deep pyrolytic, reduces rear end dedusting
The tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule by pressure, and the reactor can produce substantial amounts of cracking gas, so as to
The problem that production pyrolysis oil is difficult by is avoided, the clean and effective for being truly realized biomass is utilized.The reactor is employed
Heat accumulation type radiant tube heating technique simplifies system while the thermal efficiency that improve reactor without the need for gas, solid heat carrier heating
Technique.
To solve above-mentioned technical problem, the technical solution adopted in the utility model is：
In view of this, this utility model provides one kind from dedusting type biomass pyrolytic and cracking system.According to this practicality
New embodiment, the system include：Pyrolysis hopper；First feed arrangement, first feed arrangement and the pyrolysis hopper
Connection；Pyrolysis and cracking reactor, including：The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas, the charging aperture are arranged on
On the roof of the pyrolysis chamber, the cracking gas outlet is arranged on the side wall of the cracking room, and：Heat accumulation type radiant tube,
The heat accumulation type radiant tube is indoor in the pyrolysis chamber and the cracking along the short transverse multi-tier arrangement of the pyrolysis reactor
Portion, per layer has many heat accumulation type radiant tubes arranged in the horizontal direction；Heat-insulated brick wall, the heat-insulated brick wall are arranged on instead
Answer at the 2/3 of device transverse width, vertically through in the reactor, the inner space of the reactor is separated into described
Pyrolysis chamber and the cracking room；Communication member, the communication member are on the heat-insulated brick wall longitudinal length, positioned at lower position
Opening, for the pyrolysis chamber is connected with the cracking room；Grain bed dust arrester, the grain bed dust arrester and institute
The opening for stating heat-insulated brick wall is fixedly connected, and the grain bed dust arrester is located at the side of the pyrolysis chamber along level side
To extending to, the pyrolysis is indoor, for the oil gas for producing the pyrolysis chamber, by the grain bed dust arrester, is passed into
The cracking room；Cracking gas cyclone separator, the cracking gas cyclone separator are conveyed with cracking gas outlet, semicoke respectively
Device is connected with spray column；Spray column, the spray column are connected with the cracking gas cyclone separator；Fuel cartridge, the combustion gas
Tank is connected with the spray column.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good, can process the biomass of below 20mm, and raw material availability is high, are suitable to promote, can enter in a body of heater
Two kinds of operations of row, unite two into one, and save construction cost and floor space, and reactor is divided into pyrolysis chamber and cracking room, and is produced from pyrolysis chamber
Raw oil gas, after grain bed dedusting, clean oil gas enters back into cracking room carries out deep pyrolytic, the tar molecules of macromole
It is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil is difficult
With the problem for utilizing, the clean and effective for being truly realized biomass is utilized.
According to embodiment of the present utility model, the grain bed dust arrester is located on the side of pyrolysis chamber side and arranges tool
There is the pore area in multiple holes, the grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust outlet, and described
Grain bed dust arrester be located at cracking room side side surface upper part be provided with for the dust arrester is carried out blowback blow valve port,
Bottom is provided with pyrolysis gas outlet.
According to embodiment of the present utility model, the grain bed dust arrester is embedded in the opening.
According to embodiment of the present utility model, the thickness of the heat-insulated brick wall is 50-150mm, and the height of the pore area is
150-1500mm, a diameter of 1-30mm in the hole；It is inclined-plane that the grain bed dust arrester is located at the top of pyrolysis chamber side
Design, the height of the grain bed dust arrester is 200-2000mm, and width is 100-500mm, the grain bed dust arrester
Built with the high filter mediums of 1mm-20mm；Preferably, the filter medium is perlite, sandstone or spherical ceramic particles.
According to embodiment of the present utility model, the system is further included：Gasification furnace, described gasification furnace one end and the storage
The fuel gas inlet of hot type radial canal is connected, and the other end is connected with the semicoke conveyer device.
According to embodiment of the present utility model, the system also includes：Loading hopper；Second feed arrangement, itself and the charging
Bucket is connected；Drying device, which is connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively；It is dry
Dry cyclone separator, which is connected with the drying device and the pyrolysis hopper respectively；Exhaust gas cleaner, which is dry with described
Dry cyclone separator is connected.
According to embodiment of the present utility model, the pyrolysis hopper is by first feed arrangement and the charging aperture phase
Even；Semicoke outlet is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke outlet is filled with semicoke conveying
Put connection.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system
Solution and the method for cracking.
According to embodiment of the present utility model, the method is comprised the following steps：A. grain biomass is passed through into described first
Feed arrangement and the charging aperture are added in the reactor, complete to be pyrolyzed in the pyrolysis chamber of the reactor
Journey；B. the oil gas for being pyrolyzed generation was filtered by the grain bed dust arrester arranged on the heat-insulated brick wall of the reactor
After dirt, clean oil gas enters into the cracking room of the reactor, completes cracking process, produces cracking gas；C. it is described to split
Vent one's spleen and entered in the cracking gas cyclone separator by cracking gas outlet, the cracking gas is carried out at udst separation
Reason, the thin dirt that cracking gas cyclone separator described in Jing is separated enter the gasification furnace gas by the semicoke conveyer device
Change；D. the cracking gas after dedusting is entered in the spray column, carries out washing, purifying process to cracking gas；E. through purification
Net cracking gas is entered in the fuel cartridge and is stored.
According to embodiment of the present utility model, in step a, the grain biomass enters from the reactor top
Material mouth is added in the reactor, and is broken up by the heat accumulation type radiant tube in the reactor, and pyrolysis char is from described
The semicoke outlet of reactor bottom is discharged；In step a, the grain biomass is described in the reactor pyrolysis chamber
Heat accumulation type radiant tube is heated to 500-600 DEG C, and in step b, the pyrolysis oil gas is by the institute in the reactor cracking room
State heat accumulation type radiant tube and be heated to 650-900 DEG C.
According to embodiment of the present utility model, the granularity of the grain biomass is below 20mm.
This utility model at least has the advantages that：
1）Take heat accumulation type radiant tube moving bed process, response system simple structure, easy to operate, uniformity of temperature profile,
Heats are good；
2）The biomass of below 20mm can be processed, raw material availability is high, be suitable to promote；
3）Reactor is divided into pyrolysis chamber and cracking room, and the oil gas that pyrolysis chamber produces can carry out deep pyrolytic in cracking room, greatly
The tar molecules of molecule are cracked into the gaseous hydrocarbons of small molecule；
4）The response system can produce substantial amounts of cracking gas product, it is to avoid the problem that pyrolysis oil is difficult by, real real
The clean and effective for having showed biomass is utilized；
5）It is provided with grain bed cleaner unit at pyrolysis chamber's oil gas vent, the oil gas that pyrolysis chamber produces, after grain bed dedusting,
Clean oil gas enters back into cracking room carries out deep pyrolytic, reduces rear end dedusting pressure, generates clean gas；
6）Two kinds of operations can be carried out in one body of heater, is united two into one, save construction cost and floor space.
Description of the drawings
Fig. 1 is the structure chart of this utility model pyrolysis and cracking system.
Fig. 2 is the structure of reactor figure of this utility model pyrolysis and cracking system.
Fig. 3 be this utility model reactor in be provided with grain bed dust arrester heat-insulated brick wall front view.
Structure charts of the Fig. 4 for the grain bed dust arrester in this utility model reactor.
Wherein, 1, loading hopper；2nd, pneumatic conveyer dryer；3rd, thermal storage type moving bed reactor；4th, it is dried cyclone separator；5th, heat
Solution hopper；6th, tail gas air-introduced machine；7th, exhaust gas cleaner；8th, feeding screw；9th, cracking gas cyclone separator；10th, spray column；
11st, combustion gas air-introduced machine；12nd, fuel cartridge；13rd, gasification furnace；14th, conveying worm；15th, heat accumulation type radiant tube；16th, heat-insulated brick wall；
17th, communication member；18th, pyrolysis chamber；19th, cracking room；20th, cracking gas outlet；21st, charging aperture；22nd, fuel gas inlet；23rd, flue gas goes out
Mouthful；24th, air intake；25th, semicoke outlet；26th, grain bed dust arrester；2601st, pore area；2602nd, dust outlet；2603、
Blow valve port；2604th, pyrolysis gas outlet.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to restriction of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
Document described by technology or condition or carry out according to product description.
According to specific embodiment of the utility model, it is adaptable to which the particle diameter of the biomass of the reactor is not particularly limited,
In some preferred embodiments of the present utility model, the biomass that the reactor is adopted are particle diameter 20mm particles below and powdery
Fossil fuel, thus, it is possible to make full use of little particle biomass, resource utilization is high, and can solve the problem that bulk deposition pollution ring
The problem in border.
According to specific embodiment of the utility model, it is adaptable to which the type of furnace of the system is not particularly limited, it can be accumulation of heat
Formula moving bed 3 can also be other types, such as non-heat accumulating type or non-moving type etc., as long as can be by 16 integration of heat-insulated brick wall
It is divided into pyrolysis chamber 18 and cracking room 19.
This utility model provides one kind from dedusting type biomass pyrolytic and cracking system.According to enforcement of the present utility model
Example, Fig. 1 are the structure chart of this utility model pyrolysis and cracking system, and with reference to shown in Fig. 1, the system includes：Pyrolysis hopper 5；The
One feed arrangement, first feed arrangement are connected with the pyrolysis hopper；Pyrolysis and cracking reactor 3, which includes：Charging aperture
21st, pyrolysis chamber 18, the outlet 20, heat accumulation type radiant tube 15 of cracking room 19, cracking gas, heat-insulated brick wall 16, communication member 17 and granule
Bed dust arrester 26, wherein, the charging aperture is arranged on the roof of the pyrolysis chamber, and the cracking gas outlet is arranged on described
On the side wall of cracking room, the inner space of the reactor is divided by the heat-insulated brick wall vertically through in the reactor
The pyrolysis chamber and the cracking room are divided into, the communication member is on the heat-insulated brick wall longitudinal length, positioned at lower position
Opening, for the pyrolysis chamber is connected with the cracking room；The institute of the grain bed dust arrester and the heat-insulated brick wall
State opening to be fixedly connected, and the grain bed dust arrester extends horizontally and to the heat positioned at the side of the pyrolysis chamber
Solution is indoor, for the oil gas for producing the pyrolysis chamber, by the grain bed dust arrester, is passed into the cracking room；Split
Vent one's spleen cyclone separator, the cracking gas cyclone separator respectively with cracking gas outlet, semicoke conveyer device 14 and spray
Tower 10 is connected；Spray column, the spray column are connected with cracking gas outlet；Fuel cartridge 12, the fuel cartridge and the spray
Tower connects.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good, can process the biomass of below 20mm, and raw material availability is high, are suitable to promote, can enter in a body of heater
Two kinds of operations of row, unite two into one, and save construction cost and floor space, and reactor is divided into pyrolysis chamber and cracking room, and is produced from pyrolysis chamber
Raw oil gas, after grain bed dedusting, clean oil gas enters back into cracking room carries out deep pyrolytic, the tar molecules of macromole
It is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil is difficult
With the problem for utilizing, the clean and effective for being truly realized biomass is utilized.
According to specific embodiment of the utility model, with reference to shown in Fig. 2, inside reactor has along the pyrolysis reactor
Heat accumulation type radiant tube of the short transverse multi-tier arrangement inside the pyrolysis chamber and the cracking room, every layer of heat accumulation type radiant tube tool
There are many heat accumulation type radiant tubes, and horizontally spaced arrangement.According to embodiment of the present utility model, the pyrolysis chamber and split
Solution interior distributed at least one heat accumulation type radiant tube respectively, it is preferred that at least one heat accumulation type radiant tube is uniform
Distribution.Heat accumulation type radiant tube can be effective for pyrolysis material and cracking indoor oil gas and heat so as to carry out pyrolysis and
Cracking reaction, specifically, can be passed through combustible gas and air into heat accumulation type radiant tube, combustible gas burning is realized to pyrolysis material
Heating function.The reactor employs heat accumulation type radiant tube heating technique without the need for gas, solid heat carrier heating, and Temperature Distribution is equal
Even, heats are good, and response system simple structure is easy to operate, simplifies system while the thermal efficiency that improve reactor
Technique.
In the reactor, biomass are moved from top to bottom, the unidirectional heat accumulating type radiation being evenly arranged arranged in pyrolysis chamber
Biomass can be broken up by pipe is uniformly distributed which, and biomass are stopped 1-50 minutes in the reactor from top to bottom, and are heated to
500-600 DEG C, tube wall temperature is controlled in 500～700 DEG C of scopes using gas control valve, completes pyrolytic process, what pyrolysis was produced
Oil gas, by the opening of reactor lower part checker brick, enters into cracking room, and the unidirectional accumulation of heat being evenly arranged is provided with cracking room
Formula radial canal, and 650-900 DEG C is heated to, tube wall temperature is controlled in 650～900 DEG C of scopes using gas control valve, completes to split
Solution preocess, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of cracking gas, it is to avoid pyrolysis oil contains
The problem of dirt, the clean and effective for being truly realized biomass are utilized.According to embodiment of the present utility model, heat accumulation type radiant tube
Shape is not particularly limited, and in some embodiments of the present utility model, can be cylinder, thus be conducive to beating for biomass
Dissipate, realize mixing biomass in the reactor dispersed.
According to specific embodiment of the utility model, the cracking gas cyclone separator respectively with the cracking gas outlet,
Semicoke conveyer device is connected with spray column.Thus, cracking gas is exported by cracking gas, is removed in cracking gas cyclone separator
Dirt, the cracking gas after dedusting enter and wash and further purify in spray column, at the same cracking gas cyclone separator separate it is thin
Dirt, sends into gasification furnace 13 by semicoke conveyer device, and gasification gas can produce artificial natural gas, recycle, environment-friendly high-efficiency.
According to specific embodiment of the utility model, the concrete species of communication member is not particularly limited, as long as can be by
Pyrolysis chamber is connected with cracking room, so as to the oil gas for producing pyrolysis chamber is passed into cracking room.More of the present utility model
In embodiment, as shown in Fig. 2 communication member is on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
According to specific embodiment of the utility model, when Fig. 3 is from terms of the from left to right of reactor, this utility model reactor
In be provided with grain bed dust arrester heat-insulated brick wall front view, as shown in Figures 2 and 3, heat-insulated brick wall is arranged on reactor
Interior, it is preferred that at the 2/3 of reactor transverse width, the thickness of heat-insulated brick wall is 50-150mm, and heat-insulated brick wall is vertically passed through
It is through in reactor, the inner space of reactor is separated into into pyrolysis chamber and cracking room, the structure causes to set in a body of heater
Zhi Liao pyrolysis chambers and cracking room, the oil gas that pyrolysis chamber produces are pyrolyzed the oil gas for producing by setting on the heat-insulated brick wall of the reactor
After the grain bed dust arrester put carries out dust removal by filtration, clean oil gas enters into the cracking interior, completes to crack
The tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule by journey, produce substantial amounts of cracking gas, so as to avoid production heat
The problem of the oily dust-laden of solution.Also, two kinds of operations can be carried out in a body of heater, is united two into one, save construction cost and floor space.
According to specific embodiment of the utility model, the concrete mounting means of the grain bed dust arrester is unrestricted, can
Think welding, rivet or inlay, according to some embodiments of the present utility model, Fig. 4 is the granule in this utility model reactor
The structure chart of bed dust arrester, as shown in Figure 1, Figure 2 and Figure 4, particle dust-collecting equipment is inlayed by this utility model using mosaic mode
It is embedded in the opening, grain bed dust arrester is located on the side of pyrolysis chamber side and arranges the pore area 2601 with multiple holes,
The grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust outlet 2602, and grain bed dedusting dress
It is provided with and is provided with for the blow valve port 2603, bottom that blowback is carried out to the dust arrester setting in the side surface upper part of cracking room side
Pyrolysis gas outlet 2604.
According to specific embodiment of the utility model, as shown in Figure 3 and Figure 4, the height of the pore area is 150-1500mm,
A diameter of 1-30mm in the hole；The grain bed dust arrester be located at pyrolysis chamber side top be inclined design, described
The height of grain bed dust arrester is 200-2000mm, and width is 100-500mm, and the grain bed dust arrester is built with 1mm-
20mm high filter medium；According to some embodiments of the present utility model, this utility model adopts filter medium for perlite, sand
Stone or spherical ceramic particles.
According to embodiment of the present utility model, the system may further include：Combustion gas with heat accumulation type radiant tube respectively
The gasification furnace that entrance is connected with semicoke conveyer device.Thus, it is possible to utilize what pyrolysis in pyrolysis chamber was produced by semicoke conveyer device
Semicoke is delivered in gasification furnace, carries out gasification process to semicoke, and to obtain combustible gas and lime-ash, the combustible gas for obtaining can be passed through
In heat accumulation type radiant tube, while being passed through air in heat accumulation type radiant tube, making combustible gas burn is carried out to the material in pyrolysis chamber
Heating.Thus, it is possible to sufficiently utilize semicoke, do not cause to waste, good economy performance.
According to specific embodiment of the utility model, the reactor is provided with fuel gas inlet 22, air intake 24 and cigarette
Gas outlet 23, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, are respectively used to be passed through combustible gas and row
Go out flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, and the air for source of the gas is produced is passed through heat accumulating type spoke
Penetrate in pipe.
According to specific embodiment of the utility model, the system may further include：Loading hopper 1；It is connected with loading hopper
The second feed arrangement 8；What is be connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively is dry
Dry device 2；Cyclone separator 4 is dried with the drying device and the pyrolysis hopper are connected respectively；With the dry rotation
The exhaust gas cleaner 7 that wind separator is connected.Thus, it is possible to pass through the second feed arrangement the biomass in loading hopper be added
In drying device, in drying device, (temperature is about 200 to the flue gas of heat accumulation type radiant tube of the biomass in from pyrolysis chamber
～250 degrees Celsius) in the presence of be dried, then dried biomass and flue gas mixture enter be dried cyclonic separation
Device, separating the flue gas (about 70～110 degrees Celsius of temperature) for obtaining carries out purified treatment in exhaust gas cleaner, to realize
Qualified discharge, separates the pyrolysis material for obtaining and is delivered in pyrolysis hopper, for carrying out pyrolytic reaction.
According to embodiment of the present utility model, the concrete species of the second pay-off is not particularly limited, as long as being applied to
Biomass in loading hopper are delivered in drying device.In some embodiments of the present utility model, the second feeding dress
It can be feeding screw 8 to put.Thereby, it is possible to realize the Automatic Conveying to biomass, and conveying capacity is controllable, device structure letter
It is single, it is easy to operate.
According to embodiment of the present utility model, the concrete species of drying device is not particularly limited, if can realize it is right
The function of the drying and preheating of biomass.In some embodiments of the present utility model, drying device can be dry for air-flow
Dry device, thus, biomass in the presence of flue gas are dried and are lifted, and the mixture of dried biomass and flue gas is discharged
Pneumatic conveyer dryer, is conducive to subsequent step to carry out.In drying device, while being dried to pyrolysis material, also achieve
The function of preheating, is discharged using heat accumulation type radiant tube in being conducive to the speed and efficiency, and pyrolysis chamber for improve follow-up pyrolytic reaction
Flue gas biomass are dried and are preheated, realize the comprehensive utilization of heat energy, effectively reduce energy consumption, reached energy-saving ring
The purpose of guarantor.
According to embodiment of the present utility model, can also be further being dried between cyclone separator and exhaust gas cleaner
It is provided with tail gas air-introduced machine 6, it is defeated that tail gas air-introduced machine quickly and efficiently can will be dried in cyclone separator the flue gas that separates acquisition
Deliver in exhaust gas cleaner, be conducive to improving work efficiency.
According to embodiment of the present utility model, the system can also include：Can also enter between spray column and fuel cartridge
One step is provided with combustion gas air-introduced machine 11, and combustion gas air-introduced machine quickly and efficiently can will pass through the natural of purification acquisition in spray column
Gas is stored in being delivered to fuel cartridge, and further, the cracking gas for obtaining can be further used for preparing LNG or LNP.Invention
People has found, can significantly improve the yield of cracking gas using the system, have enough gas for producing liquefied natural gas (LNG)
Or liquefied petroleum gas (LPG), it is good in economic efficiency.
According to specific embodiment of the utility model, the pyrolysis hopper is connected with charging aperture by the first feed arrangement；
Semicoke outlet 25 is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke outlet is filled with semicoke conveying
Put connection.The concrete species of the first feed arrangement is not particularly limited, as long as can be by the biomass in pyrolysis hopper effectively
It is delivered in reactor.In some embodiments of the present utility model, the first feed arrangement can be with feeding screw 8.By
This, can realize the Automatic Conveying to biomass, and conveying capacity is controllable, and device structure is simple, easy to operate.Semicoke conveying dress
The concrete species put is not particularly limited, including but not limited to star or conveying worm 14, under preferable case, semicoke conveyer
It can be conveying worm 14.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controllable, and device structure is simple,
It is easy to operate.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system
Solution and the method for cracking.According to embodiment of the present utility model, the method may comprise steps of：
A. grain biomass is passed through into first feed arrangement and the charging aperture being arranged on the roof of the pyrolysis chamber
It is added in the reactor, pyrolytic process is completed in the pyrolysis chamber of the reactor, pyrolysis char is from reactor bottom
The semicoke outlet in portion is discharged, and Jing semicokes conveyer device is discharged.
According to specific embodiment of the utility model, the concrete species of the first feed arrangement is not particularly limited, as long as can
So that the biomass in pyrolysis hopper are effectively delivered in reactor.In some embodiments of the present utility model, the
One feed arrangement can be with feeding screw 8.Thereby, it is possible to realize the Automatic Conveying to biomass, conveying capacity is controllable, and equipment
Simple structure, it is easy to operate.
According to specific embodiment of the utility model, the pyrolysis interior distributed at least one heat accumulating type radiation
Pipe, it is preferred that at least one heat accumulation type radiant tube is uniformly distributed, and specifically, unidirectional heat accumulation type radiant tube can be by biology
Matter is broken up is uniformly distributed which, and biomass are stopped 1-50 minutes in the reactor from top to bottom, and are heated to 500-600 DEG C, manages
Wall temperature is controlled in 500～700 DEG C of scopes using gas control valve, completes pyrolytic process.
According to embodiment of the present utility model, before biomass to be added pyrolysis hopper, can also be in advance to biomass
Process is dried, it is for instance possible to use the flue gas that heat accumulation type radiant tube is discharged is dried to biomass and the pre-heat treatment, by
This, can remove the moisture in biomass, be conducive to improving pyrolysis efficiency.According to embodiment of the present utility model, the pyrolysis side
Method can also include the step of carrying out purified treatment to dried flue gas, so that tail gas qualified discharge, reduces environmental pollution.
According to embodiment of the present utility model, the concrete species of semicoke conveyer device is not particularly limited, including but do not limit
In star or conveying worm 14, under preferable case, semicoke conveyer can be conveying worm 14.It is right thereby, it is possible to realize
The Automatic Conveying of semicoke, and conveying capacity is controllable, device structure is simple, easy to operate.
B. the oil gas for being pyrolyzed generation is carried out by the grain bed dust arrester arranged on the heat-insulated brick wall of the reactor
After dust removal by filtration, clean oil gas enters into the cracking room of the reactor, completes cracking process, produces cracking gas.
According to specific embodiment of the utility model, the concrete mounting means of the grain bed dust arrester is unrestricted, can
Think welding, rivet or inlay, according to some embodiments of the present utility model, granule is removed using mosaic mode by this utility model
Dirt device is embedded in the opening, and grain bed dust arrester is located on the side of pyrolysis chamber side and arranges the hole with multiple holes
Band 2601, the grain bed dust arrester are located at the bottom surface of pyrolysis chamber side and are provided with dust outlet 2602, and the granule
Bed dust arrester be located at cracking room side side surface upper part be provided with for the dust arrester is carried out blowback blow valve port 2603,
Bottom is provided with pyrolysis gas outlet 2604.
According to specific embodiment of the utility model, the height of the pore area is 150-1500mm, the hole it is a diameter of
1-30mm；It is inclined design that the grain bed dust arrester is located at the top of pyrolysis chamber side, the grain bed dust arrester
It is highly 200-2000mm, width is 100-500mm, the grain bed dust arrester is situated between built with 1mm-20mm high filtration
Matter；According to some embodiments of the present utility model, this utility model adopts filter medium for perlite, sandstone or ceramic variole
Grain.
C. the cracking gas is entered in the cracking gas cyclone separator, to the cracking by cracking gas outlet
Gas carries out udst separation process, and the thin dirt that cracking gas cyclone separator described in Jing is separated is entered by the semicoke conveyer device
Enter the gasification furnace gasification.
According to specific embodiment of the utility model, the cracking gas cyclone separator respectively with the cracking gas outlet,
Semicoke conveyer device is connected with spray column.Thus, cracking gas is exported by cracking gas, is removed in cracking gas cyclone separator
Dirt, the cracking gas after dedusting enter and wash and further purify in spray column, at the same cracking gas cyclone separator separate it is thin
Dirt, sends into gasification furnace by conveying worm, and gasification gas can produce artificial natural gas, recycle, environment-friendly high-efficiency.
D. the cracking gas after dedusting is entered in the spray column, carries out washing, purifying process to cracking gas.
E. the net cracking gas through purification is entered in the fuel cartridge and is stored.
According to embodiment of the present utility model, the system can also include：Can also enter between spray column and fuel cartridge
One step is provided with combustion gas air-introduced machine, the natural gas that combustion gas air-introduced machine quickly and efficiently will can be obtained through purification in spray column
Stored in being delivered to fuel cartridge, further, the cracking gas for obtaining can be further used for preparing LNG or LNP.Inventor
It was found that, the yield of cracking gas can be significantly improved using the system, have enough gas for produce liquefied natural gas (LNG) or
Liquefied petroleum gas (LPG), it is good in economic efficiency.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good, can process the biomass of below 20mm, and raw material availability is high, are suitable to promote, can enter in a body of heater
Two kinds of operations of row, unite two into one, and save construction cost and floor space, and reactor is divided into pyrolysis chamber and cracking room, and is produced from pyrolysis chamber
Raw oil gas, after grain bed dedusting, clean oil gas enters back into cracking room carries out deep pyrolytic, the tar molecules of macromole
It is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil is difficult
With the problem for utilizing, the clean and effective for being truly realized biomass is utilized.
Below the specific work process from dedusting type biomass pyrolytic and cracking system and method for the present utility model is entered
Row is described in detail, specific as follows：
First, granularity≤20mm biomass starting materials are added in loading hopper 1, will be stored in using the second feed arrangement 8 and be added
During biomass starting material in hopper 1 adds pneumatic conveyer dryer 2, while 200～250 degrees Celsius discharged in heat accumulation type radiant tube 15
Flue gas be passed through in pneumatic conveyer dryer 2, biomass starting material in the presence of flue gas is dried and is lifted, then flue gas and raw material
The mixture of biomass discharges pneumatic conveyer dryer, enters and is dried in cyclone separator 4, and (temperature is about 70 to the flue gas that separation is obtained
～110 degrees Celsius) discharge is dried cyclone separator 4, and exhaust gas cleaner is entered in the presence of tail gas air-introduced machine 6, carry out
Purified treatment, the flue gas emptying that what purification was obtained meet discharge standard, is dried isolated raw material in cyclone separator 4 biological
Matter is discharged and is dried cyclone separator 4, and is entered in pyrolysis hopper 5, then will be stored in pyrolysis material using the first pay-off
Biomass starting material add pyrolysis reactor in, move from top to bottom, stop about 1～50 minute, in the heat accumulating type being uniformly arranged
Radial canal 15 (about 500～700 degrees Celsius of tube wall temperature) is broken up with heat effect, and biomass thermally equivalent is warming up to
500～600 degrees Celsius, complete pyrolytic reaction, obtain being pyrolyzed oil gas and semicoke, the pyrolysis oil gas for obtaining by the reactor every
The grain bed dust arrester 26 arranged on hot brick wall carries out dust removal by filtration, while by the dedusting dress of blow valve port 2603 pairs
Putting carries out blowback, and the dust of generation is discharged into the semicoke conveyer device 14, clean oil gas by dust outlet 2602
The cracking interior is entered into by pyrolysis gas outlet 2604, deep pyrolytic is carried out, semicoke or other solid impurities are by partly
Burnt conveyer device carries out gasification process in being delivered to gasification furnace 13, and the combustible gas for obtaining is passed through heat accumulation type radiant tube for pyrolysis
Biomass in reactor are heated, and the lime-ash that gasification process is obtained discharges gasification furnace, and the cracking for obtaining is cracked in cracking room
Gas by cracking gas outlet into dedusting in cracking gas cyclone separator 9, wash in spray column 10 by the cracking gas after dedusting
Wash and further purify, the net cracking gas Jing tail gas air-introduced machine 6 after washing is sent into fuel cartridge 12 and stored, and can be used to produce artificial natural
The products such as gas, while the thin dirt that cracking gas cyclone separator 9 is separated, sends into gasification furnace 13 by conveying worm and enter circulation of qi promoting
Change, the gas for obtaining that gasifies can be passed through pyrolysis chamber and be circulated heating utilization, the lime-ash after gasification is discharged.
Specific embodiment：
Using processing from dedusting type biomass pyrolytic and cracking system to pine sawdust, the basic data of raw material is shown in Table 1.
Table 1：Pine sawdust basic data
Pine sawdust is processed using the response system, the gas products yield for obtaining is 65%, the cracking of pyrolytic tar almost all
For gaseous products, factor of created gase height.In the cracking gas of the system output, dust content is less than 1%, and gas is more cleaned.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
The feature of " first ", " second " can be expressed or implicitly include one or more this feature.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in this utility model.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State that be not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area
The feature of the different embodiments or example described in this specification and different embodiments or example can be carried out by technical staff
With reference to and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, be changed, being replaced and modification, simultaneously for one of ordinary skill in the art, foundation
The thought of the application, will change in specific embodiments and applications.
Claims (8)
1. one kind is from dedusting type biomass pyrolytic and cracking system, it is characterised in that include：
Pyrolysis hopper；
First feed arrangement, first feed arrangement are connected with the pyrolysis hopper；
Pyrolysis and cracking reactor, including：The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas, the charging aperture are arranged on
On the roof of the pyrolysis chamber, the cracking gas outlet is arranged on the side wall of the cracking room；And：
Heat accumulation type radiant tube, the heat accumulation type radiant tube along the pyrolysis reactor short transverse multi-tier arrangement in the pyrolysis
Inside room and the cracking room, per layer has many heat accumulation type radiant tubes arranged in the horizontal direction；
Heat-insulated brick wall, the heat-insulated brick wall are arranged at the 2/3 of reactor transverse width, vertically through in the reactor
It is interior, the inner space of the reactor is separated into into the pyrolysis chamber and the cracking room；
Communication member, the communication member are on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position, for by institute
State pyrolysis chamber to connect with the cracking room；
Grain bed dust arrester, the grain bed dust arrester are fixedly connected with the opening of the heat-insulated brick wall, and described
Grain bed dust arrester is located at the side of the pyrolysis chamber, and to extend horizontally and to the pyrolysis indoor, for by the pyrolysis
The oil gas that room produces, by the grain bed dust arrester, is passed into the cracking room；
Cracking gas cyclone separator, the cracking gas cyclone separator respectively with the cracking gas outlet, semicoke conveyer device and
Spray column is connected；
Spray column, the spray column are connected with the cracking gas cyclone separator；
Fuel cartridge, the fuel cartridge are connected with the spray column.
2. system according to claim 1, it is characterised in that the grain bed dust arrester is located at the side of pyrolysis chamber side
Pore area with multiple holes is set on face, and the grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust discharge
Mouthful, and the grain bed dust arrester be located at cracking room side side surface upper part be provided with for carrying out blowback to the dust arrester
Blow valve port, bottom be provided with pyrolysis gas outlet.
3. system according to claim 2, it is characterised in that the grain bed dust arrester is embedded in the opening.
4. system according to claim 2, it is characterised in that the thickness of the heat-insulated brick wall is 50-150mm, the hole
The height of band is 150-1500mm, a diameter of 1-30mm in the hole；The grain bed dust arrester is located at pyrolysis chamber side
Top is inclined design, and the height of the grain bed dust arrester is 200-2000mm, and width is 100-500mm, the granule
Bed dust arrester is built with 1mm-20mm high filter medium.
5. the system according to any one of claim 1-3, it is characterised in that further include：Gasification furnace, the gasification
Stove one end is connected with the fuel gas inlet of the heat accumulation type radiant tube, and the other end is connected with the semicoke conveyer device.
6. the system according to any one of claim 1-3, it is characterised in that also include：
Loading hopper；
Second feed arrangement, which is connected with the loading hopper；
Drying device, which is connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively；
Cyclone separator is dried, which is connected with the drying device and the pyrolysis hopper respectively；
Exhaust gas cleaner, which is connected with the cyclone separator that is dried.
7. the system according to any one of claim 1-3, it is characterised in that the pyrolysis hopper enters by described first
Material device is connected with the charging aperture；Semicoke outlet is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke
Outlet is connected with the semicoke conveyer device.
8. system according to claim 4, it is characterised in that the filter medium is perlite, sandstone or ceramic variole
Grain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662143.3U CN206051938U (en) | 2016-06-29 | 2016-06-29 | One kind is from dedusting type biomass pyrolytic and cracking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620662143.3U CN206051938U (en) | 2016-06-29 | 2016-06-29 | One kind is from dedusting type biomass pyrolytic and cracking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051938U true CN206051938U (en) | 2017-03-29 |
Family
ID=58372349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620662143.3U Expired - Fee Related CN206051938U (en) | 2016-06-29 | 2016-06-29 | One kind is from dedusting type biomass pyrolytic and cracking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206051938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925283A (en) * | 2016-06-29 | 2016-09-07 | 北京神雾环境能源科技集团股份有限公司 | Self-dust-removal type pyrolyzing and cracking system for biomass |
| CN106957668A (en) * | 2017-04-28 | 2017-07-18 | 神雾环保技术股份有限公司 | The system and method that a kind of pulverized coal pyrolysis coupling calcium carbide production and acetylene occur |
-
2016
- 2016-06-29 CN CN201620662143.3U patent/CN206051938U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925283A (en) * | 2016-06-29 | 2016-09-07 | 北京神雾环境能源科技集团股份有限公司 | Self-dust-removal type pyrolyzing and cracking system for biomass |
| CN106957668A (en) * | 2017-04-28 | 2017-07-18 | 神雾环保技术股份有限公司 | The system and method that a kind of pulverized coal pyrolysis coupling calcium carbide production and acetylene occur |
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| CP03 | Change of name, title or address |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Self-dust-removal type pyrolyzing and cracking system for biomass Effective date of registration: 20180330 Granted publication date: 20170329 Pledgee: Tianfeng Securities Co.,Ltd. Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000247 |
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