CN110358578A - A kind of fire coal coupled biological matter power generating simultaneously charcoal system - Google Patents
A kind of fire coal coupled biological matter power generating simultaneously charcoal system Download PDFInfo
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- CN110358578A CN110358578A CN201910574306.0A CN201910574306A CN110358578A CN 110358578 A CN110358578 A CN 110358578A CN 201910574306 A CN201910574306 A CN 201910574306A CN 110358578 A CN110358578 A CN 110358578A
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- pyrolysis
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1207—Heating the gasifier using pyrolysis gas as fuel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention belongs to biomass economy fields, and disclose a kind of coal-fired coupled biological matter power generating simultaneously charcoal system.Charging gear is for being pre-processed, being sieved, being stored and being fed biomass material to be processed in the system；Gasification installation includes gasification furnace and cyclone separator, is sent into pyrolysis installation by cyclone separator for gasified raw material to gasify, and by the gasification gas of production；Pyrolysis installation includes pyrolysis oven and booster fan, and for pyrolysis feed to be pyrolyzed, the pyrolysis gas of generation is mixed with gasification gas obtains biological flue gas, finally carries out mixed combustion with coal dust in coal-burning boiler.While the present invention provides energy using the heat of gasification gas for pyrolytic reaction, the particulate matter and dust in gasification gas are sufficiently filtered using the pyrolysis bed of material, it can be improved the stability of system, the gas that gasifies simultaneously can play certain activation to pyrolytic carbon, achieve the purpose that continuous-stable output charcoal and high-grade biological flue gas.
Description
Technical field
The invention belongs to biomass economy fields, more particularly, to a kind of coal-fired coupled biological matter power generating simultaneously biology
Charcoal system.
Background technique
Biomass has abundant, widely distributed, environmental-friendly and neutral carbon of resource reserve etc. as a kind of renewable energy
Advantage, extensive utilization can be effectively relieved fossil energy and use bring energy crisis and environmental pollution.China is agriculture big
State, generates a large amount of agriculture and forestry organic waste material every year, and the biomass accounting for being able to effectively dispose at present is lower, a large amount of agriculture and forestry organic waste material
A series of problem is caused due to mishandling, the atmosphere pollution as caused by Open Burning Crop Residue, disease caused by chopping and returning
Evil increases and grain drop in production, wasting of resources caused by timber directly burns etc..The recovery energy of agriculture and forestry organic waste material not only can be with
Effectively dispose a large amount of waste resources, it may also be used for for heat and generating power, realize the two-win of " energy and environment ".
Common biomass generation includes biomass direct-fired technology, biomass and coal for mixing combustion technology, gasification of biomass
Combustion technology etc..In recent years, generating efficiency is high, pollutant emission is low, avoidable because having for gasification of biomass Blended Coal Combustion technology
The remarkable advantages such as adverse effect (dust stratification, slagging and corrosion), the coal-fired boiler reform amount of biomass ash be small, receive significant attention.
However, existing biomass gasification technology directly applies to the mixed combustion of coal-burning boiler, there is also certain limitations, such as direct gasification
The problem of fuel gases calorific value of generation is lower, will affect coal-burning boiler interior temperature distribution, brings combustion instability；Combustion gas enters pot
Stokehold needs dedusting, cools down to meet the requirement of booster fan, causes energy loss and increases the risk that tar is precipitated.Other part
Biomass material of high-quality such as timber, shell etc., the mixed combustion of direct gasification, does not develop its utility value sufficiently.Compare and
Speech, the fuel gases calorific value for being pyrolyzed generation is higher, and can generate high-quality biological charcoal simultaneously, and charcoal is usually used in sewage purification, soil
The fields such as improvement, catalyst carrier, electrode material have very high added value, have a extensive future.But traditional pyrolysis installation
Need to provide a large amount of heat, and the gas quantity generated is low.
Therefore the effective use in order to realize biomass material, its property of raw material is played, high-quality biological charcoal is produced, it is full
Foot is further processed into the needs of high value added product, and existing in combination with the biological flue gas of gasification of biomass production high heating value
There is coal-burning boiler depth coupled electricity-generation, and realize that system capacity is self-supporting, it is necessary to research and develop new-type coal-fired coupled biological matter power generating simultaneously
Charcoal system, sufficiently combine gasification of biomass, pyrolytic technique the advantages of, realize production high-quality biological charcoal while with it is existing
Coal-burning boiler coupled electricity-generation.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of coal-fired coupled biological matter power generation connection
Generation charcoal system, wherein the same of charcoal is made by classify by biomass material and being gasified and be pyrolyzed respectively
When can obtain biological flue gas with coal for mixing combustion, to realize coal-fired coupled biological matter power generating simultaneously charcoal, thus especially
The application recycled suitable for biomass.
To achieve the above object, the invention proposes a kind of coal-fired coupled biological matter power generating simultaneously charcoal system, this is
System includes charging gear, gasification installation, pyrolysis installation and coal-burning boiler, in which:
The charging gear includes pretreatment unit, gasification furnace feeder unit and pyrolysis oven feeder unit, the pretreatment
Gasified raw material and pyrolysis feed are respectively fed to the gasification for pre-processing biomass material to be processed by unit
Furnace feeder unit and pyrolysis oven feeder unit are stored and are fed；
The gasification installation includes gasification furnace and cyclone separator, and the gasification furnace and the gasification furnace feeder unit connect
It connects, the gasified raw material for being sent to gasifies, and generates the gasification gentle ashing slag of gas, and the gasification gas passes through cyclonic separation
Device is sent into the pyrolysis installation, and the gasification lime-ash is discharged from the bottom of the gasification furnace；
The pyrolysis installation includes pyrolysis oven and booster fan, and the pyrolysis oven is connect with the pyrolysis oven feeder unit,
Pyrolysis feed for being sent to is pyrolyzed, and pyrolysis gas and charcoal, the pyrolysis gas and the pyrolysis oven lower part are generated
The gasification gas mixing being passed through obtains biological flue gas, and the biological flue gas is discharged from the top of the pyrolysis oven and passes through booster fan
It is sent into the coal-burning boiler, the charcoal is discharged and is collected from the bottom of the pyrolysis oven；The biological flue gas is in institute
It states and carries out mixed combustion in coal-burning boiler with coal dust.
As it is further preferred that the gasification installation further includes being arranged between the cyclone separator and pyrolysis oven
The gasification gas is respectively fed in the pyrolysis oven and burner by burner, the cyclone separator, or by the gasification gas
It is all sent into the burner, wherein the gasification gas burning for entering the burner generates flue gas, and the flue gas is sent into
In the pyrolysis oven, so that carrying out pyrolytic reaction for it provides heat.
As it is further preferred that the gasification installation further include setting the Cyclone outlet and gasification furnace it
Between fluidizing air flow rate, the fluidizing air flow rate is used for the carbon containing fine grained of isolating the cyclone separator and send
Enter the gasification furnace to continue to gasify, while also the part carbon containing fine grained gasifying as gasification reactor.
As it is further preferred that the gasification furnace feeder unit includes sequentially connected gasification furnace feed bin, level-one feed
Machine, Starlike valve and second level batcher, the gasification furnace feed bin are connect with the pretreatment unit, former for storing the gasification
Material, the second level batcher connect with the gasification furnace, and when work, the gasified raw material successively passed through the level-one batcher, star
Type valve and second level batcher are delivered in the gasification furnace；The pyrolysis oven feeder unit includes sequentially connected pyrolysis oven feed bin
And batcher, the pyrolysis oven feed bin are connect with the pretreatment unit, for storing the pyrolysis feed, the batcher with
The pyrolysis oven connection, for the pyrolysis feed to be sent into the pyrolysis oven.
As it is further preferred that the fire coal coupled biological matter power generating simultaneously charcoal system further includes being arranged described
Biological flue gas bleeding device between pyrolysis oven and coal-burning boiler, the biological flue gas bleeding device are used to start or go out in system
It is when existing emergency that the biological flue gas is externally discharged, avoid the biological flue gas from entering the coal-burning boiler.
As it is further preferred that the gasification installation further includes the slag cooler that the gasification furnace outlet at bottom is arranged in,
The slag cooler is for cooling down the gasification lime-ash, while using the heat air of the gasification lime-ash, and by preheating
Air is passed through the gasification furnace.
As it is further preferred that the pyrolysis installation further includes the charcoal receipts that the pyrolysis oven outlet at bottom is arranged in
Storage, the charcoal collector utilize the heat air of the charcoal for cooling down the charcoal, and will
The air of preheating is passed through the burner and uses for gasification gas burning.
As it is further preferred that the biological flue gas enters from the top of the coal-burning boiler, for promoting coal-fired pot
Furnace fires again, to reduce NOx generation.
As it is further preferred that the biological flue gas enters from the lower part of the coal-burning boiler, for promoting coal dust to fire
It burns.
As it is further preferred that the gasified raw material includes one of stalk, husk and city solid waste or a variety of, institute
Stating pyrolysis feed includes one of timber, shell and bamboo or a variety of.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, mainly have below
Technological merit:
1. the present invention organically combines gasification and pyrolytic process, energy is provided for pyrolytic reaction using the heat of gasification gas
While amount, using pyrolysis the bed of material sufficiently filter gasification gas in particulate matter and dust, so as to avoid gasify gas heat exchange equipment,
The use of cleaner can effectively reduce energy loss, and then improve the stability of system, while the gas that gasifies can be to pyrolysis
Charcoal plays certain activation, reaches continuous-stable output high-quality, the charcoal of high additive value and high heating value, low coke
Oil, self raising flour dirt high-grade biological flue gas purpose, solve pyrolysis installation produce during charcoal energy consumption is excessively high, energy be unable to from
Give, pyrolysis gas low output the problems such as；
2. simultaneously, the present invention, can be by gasification gas burning by the way that burner is arranged between pyrolysis oven and cyclone separator
The heat pyrolysis gas of generation, and the proportion by adjusting gasification gas heat supply and external firing heat supply inside pyrolysis oven, it is real
The purpose of pyrolysis gas ratio in air mixture is now adjusted, and then controls the calorific value and ingredient of air mixture, meets multifuel combustion and fires again
Requirement, and gasify gas burning generate flue gas eventually enter into fire coal boiler fume processing system, can be realized UTILIZATION OF VESIDUAL HEAT IN
And gas cleaning；
3. in addition, the present invention is between Cyclone outlet and gasification furnace by being arranged fluidizing air flow rate, not only
It is able to achieve carbon containing fine grain returning charge function, moreover it is possible to serve as gasification reactor, strengthen the gasification of carbon residue in recycle stock, to mention
High gasification efficiency；
4. gasification furnace feeder unit of the invention uses two-stage feeding manner, the raw material in feeding process can be effectively avoided
Tempering problem, and the problems such as prevent the winding of raw material, card plug, operation stability and the safety of system entirety are improved, wherein
By the way that Starlike valve is arranged, it can realize that stop safe is not tieed up rapidly online in the case where charging gear breaks down
It repairs；
5. the present invention can be returned effectively by the way that slag cooler and charcoal collector is arranged in the outlet of gasification furnace and pyrolysis oven
The heat of getter ashing slag and charcoal is used for preheated air, realizes the recycling of heat, to improve the energy benefit of system
With efficiency, while the lime-ash that gasifies can be used for producing chemical fertilizer or as hot-metal insulating material, charcoal can be used for preparing active carbon, inhale
Attached dose and carbon material etc. all have higher economic use value；
6. different raw materials can be respectively adopted in gasification system and pyrolysis system of the invention, to give full play to different material
Advantage, the huge agriculture and forestry organic waste materials of reserves such as rice straw, straw, cornstalk, heat can be used in the wherein wide adaptability of gasified raw material
Solution raw material, which can be used, produces the high biomass material of charcoal quality, such as bamboo, timber, shell, the charcoal of production can bring very high
Economic benefit.
Detailed description of the invention
Fig. 1 is the structure according to the coal-fired coupled biological matter power generating simultaneously charcoal system of preferred embodiment of the present invention building
Schematic diagram；
Fig. 2 is that gasification gas is respectively fed to fire coal coupled biological matter power generating simultaneously charcoal system when burner and pyrolysis oven
Structural schematic diagram；
Fig. 3 is the structural representation of fire coal coupled biological matter power generating simultaneously charcoal system when gasifying gas whole feeding burner
Figure.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- pretreatment unit, 2- gasification furnace feed bin, 3- pyrolysis oven feed bin, 4- level-one batcher, 5- Starlike valve, 6- second level are given
Material machine, 7- gasification furnace, 8- cyclone separator, 9- fluidizing air flow rate, 10- slag cooler, 11- batcher, 12- pyrolysis oven, 13-
Charcoal collector, 14- burner, 15- booster fan, 16- biological flue gas bleeding device, 17- coal-burning boiler.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
As shown in Figure 1, the embodiment of the present invention proposes a kind of coal-fired coupled biological matter power generating simultaneously charcoal system, this is
System includes charging gear, gasification installation, pyrolysis installation and coal-burning boiler 17, in which:
Charging gear includes pretreatment unit 1, gasification furnace feeder unit and pyrolysis oven feeder unit, and pretreatment unit 1 is used
It is dried, crushes and sieves in by biomass material to be processed, and gasified raw material and pyrolysis feed are respectively fed to gasify
Furnace feeder unit and pyrolysis oven feeder unit are stored and are fed, more specifically, it is high will to produce charcoal quality according to property of raw material
Raw material and common raw material separate, wherein gasified raw material includes that reserves are big, broad categories, the common biomass for being not easy charcoal processing, such as
The stalks such as straw, cornstalk, rice straw, husk or city solid waste etc., pyrolysis feed include producing the higher raw material of charcoal quality, such as wood
Material, shell or bamboo etc., and pyrolysis feed it is broken after also need to send part excessively fine crushing to gasification furnace 7 by screening
Gasify, to guarantee the quality of pyrolytic carbon；
Gasification installation includes gasification furnace 7 and cyclone separator 8, and gasification furnace 7 is connect with gasification furnace feeder unit, is used for it
The gasified raw material of feeding gasifies, and generates the gasification gentle ashing slag of gas, and gasification gas is sent into pyrolysis dress by cyclone separator 8
It sets, provides institute's calorific requirement for pyrolytic reaction, gasification lime-ash is discharged from the bottom of gasification furnace 7, and gasification furnace 7 is preferably ciculation fluidized
Bed, reaction temperature is about 800 DEG C, and gasifying medium is air；
Pyrolysis installation includes pyrolysis oven 12 and booster fan 15, and pyrolysis oven 12 is connect with pyrolysis oven feeder unit, and being used for will
Its pyrolysis feed being sent into is pyrolyzed, and pyrolysis gas and charcoal, the gasification gas that pyrolysis gas and 12 lower part of pyrolysis oven are passed through are generated
Mixing obtains biological flue gas, and biological flue gas, which is discharged from the top of pyrolysis oven 12 and passes through booster fan 15, is sent into coal-burning boiler 17,
Charcoal is discharged and is collected from the bottom of pyrolysis oven 12, more specifically, 600 DEG C~900 DEG C of gasification gas is from pyrolysis oven 12
Lower part be passed through, the temperature of biological flue gas being mixed to get after the pyrolysis bed of material with pyrolysis gas can be down to 400 DEG C~500 DEG C,
To meet maximum limit of the booster fan to fuel gas temperature, and the flying dust in the gas that gasifies is pyrolyzed bed of material interception, therefore mixed
Closing combustion gas can be passed through in booster fan 15 without further dedusting；
Biological flue gas carries out mixed combustion in coal-burning boiler 17 with coal dust, biological flue gas can from the top of coal-burning boiler 17 into
Enter, for promoting coal-burning boiler to fire again, to reduce NOx generation, biological flue gas can also enter from the lower part of coal-burning boiler 17, use
In promotion coal dust firing.
Further, gasification installation further includes the burner 14 being arranged between cyclone separator 8 and pyrolysis oven 12, such as Fig. 2
Shown, gasification gas is respectively fed in pyrolysis oven 12 and burner 14 by cyclone separator 8, or as shown in figure 3, cyclone separator 8
Gasification gas is all sent into burner 14, wherein the gasification gas burning for entering burner 14 generates flue gas, and flue gas is sent into
In pyrolysis oven 12, so that carrying out pyrolytic reaction for it provides heat, burn in burner 14 heat of release of gasification gas is greater than
Its own heat carried, therefore the heat that can be pyrolyzed according to pyrolysis oven when is required determine that the pneumatic transmission that gasifies enters pyrolysis oven
12 and burner 14 in ratio.
Further, gasification installation further includes the fluidisation sealing returning charge being arranged between the outlet of cyclone separator 8 and gasification furnace 7
Device 9, fluidizing air flow rate 9, which is used to the carbon containing fine grained that cyclone separator 8 is isolated being sent into gasification furnace 7, continues gas
Change, while also the carbon containing fine grained in part gasifying as gasification reactor, so as to improve returning charge and strengthens gasification reaction, into
And improve gasification efficiency.
Further, gasification furnace feeder unit includes sequentially connected gasification furnace feed bin 2, level-one batcher 4,5 and of Starlike valve
Second level batcher 6, gasification furnace feed bin 2 is connect with pretreatment unit 1, for storing gasified raw material, because of stalks such as rice straw, stalks
Biomass quality is light and soft, mobility is not strong, and formation bridging, knot doming effect are very universal in feed bin, therefore gasification furnace feed bin 2 is preferred
Using taper feed bin, the appearance for phenomena such as can effectively avoid fluffy material, putty, second level batcher 6 is connect with gasification furnace 7, when work
Level-one batcher 4 will take out in raw material autopneumatolysis furnace charge storehouse 2, and second level batcher 6 is fallen into after Starlike valve 5, and second level batcher 6 will
Gasified raw material directly promotes gasification furnace 7, wherein Starlike valve 5 can by the air pressure between level-one batcher 4 and second level batcher 6 every
It is disconnected, to play the role of locking gas, when charging gear breaks down, may be implemented not shut down on-bne repair, level-one batcher 4
Preferably double-spiral feeder, second level batcher 6 are preferably shaftless screw batcher；
Pyrolysis oven feeder unit includes sequentially connected pyrolysis oven feed bin 3 and batcher 11, pyrolysis oven feed bin 3 and pretreatment
Unit 1 connects, and for storing pyrolysis feed, batcher 11 is connect with pyrolysis oven 12, for pyrolysis feed to be sent into pyrolysis oven 12,
Batcher 11 preferably uses flap valve.
Further, coal-fired coupled biological matter power generating simultaneously charcoal system further includes being arranged in pyrolysis oven 12 and coal-burning boiler
Biological flue gas bleeding device 16 between 17, biological flue gas bleeding device 16 is used for will when system starts or is in an emergency
The biological flue gas is externally discharged, and the biological flue gas is avoided to enter the coal-burning boiler 17.
Further, gasification installation further includes the slag cooler 10 that 7 outlet at bottom of gasification furnace is arranged in, and slag cooler 10 is for cooling down
Gasify lime-ash, while using the heat air of gasification lime-ash, and the air of preheating is passed through gasification furnace 7, a part of conduct
Material seeding wind dispels gasified raw material in gasification furnace 7, it is made sufficiently to gasify, and another part is for promoting gasified raw material to gasify
Reaction；
Pyrolysis installation further includes the charcoal collector 13 that 12 outlet at bottom of pyrolysis oven is arranged in, and charcoal collector 13 is used
In cooling charcoal, while using the heat air of charcoal, and the air of preheating is passed through burner 14 for the gas that gasifies
Burning uses.
Below to the worked of the coal-fired coupled biological matter power generating simultaneously charcoal system of preferred embodiment of the present invention offer
Journey illustrates.
Biomass material to be processed is pre-processed and is sieved in pretreatment unit 1, and the gasified raw material of acquisition enters
Gasification furnace feed bin 2 is stored, while the pyrolysis feed obtained enters pyrolysis oven feed bin 3 and stored；
Gasified raw material is successively admitted in gasification furnace 7 after level-one batcher 4, Starlike valve 5 and second level batcher 6 and carries out
Gasification, generate gasification the gentle ashing slag of gas, wherein gasification lime-ash be discharged from the bottom of gasification furnace 7 and pass through slag cooler 10 carry out it is cold
But, while using the heat of gasification lime-ash air is preheated, the preheated air of generation is passed through in gasification furnace 7, and a part is used
In promoting gasification reaction, another part carries out material seeding, gasifies gas then after the gas solid separation of cyclone separator 8 from pyrolysis oven
Lower part is passed through, and for heating pyrolysis feed, when pyrolysis oven treating capacity is larger, is only not enough to by the sensible heat of gasification gas cooling release
Completely pyrolytic reaction heat supply when, can a part gasification gas be passed through in burner 14 and be burnt, the high-temperature flue gas of generation is logical
Enter to heat pyrolysis feed in pyrolysis oven 12, in addition, carbon containing fine grained a part that cyclone separator 8 is collected into is close in fluidisation
Gasify in envelope material returning device 9, the gasification gas of generation returns in gasification furnace 7 together with remaining carbon containing fine grained；
Pyrolysis feed is admitted in pyrolysis oven 12 after batcher 11 and is pyrolyzed, and generates pyrolysis gas and charcoal, raw
Object charcoal is discharged from the bottom of pyrolysis oven 12 and passes through charcoal collector 13 and cooled down, while using the heat of charcoal to sky
Gas is preheated, and the preheated air of generation is passed through the burning for promoting gasification gas in burner 14, while pyrolysis gas and gasification gas are mixed
It closes and obtains biological flue gas, be sent into coal-burning boiler 17 by booster fan 15 and carry out mixed combustion with coal.
As it will be easily appreciated by one skilled in the art that the above is merely preferred embodiments of the present invention, not to limit
The present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of fire coal coupled biological matter power generating simultaneously charcoal system, which is characterized in that the system includes charging gear, gasification
Device, pyrolysis installation and coal-burning boiler (17), in which:
The charging gear includes pretreatment unit (1), gasification furnace feeder unit and pyrolysis oven feeder unit, and the pretreatment is single
Gasified raw material and pyrolysis feed are respectively fed to the gas for pre-processing biomass material to be processed by first (1)
Change furnace feeder unit and pyrolysis oven feeder unit is stored and is fed；
The gasification installation includes gasification furnace (7) and cyclone separator (8), and the gasification furnace (7) and the gasification furnace are to material list
Member connection, the gasified raw material for being sent to gasify, and generate the gasification gentle ashing slag of gas, and the gasification gas passes through whirlwind
Separator (8) is sent into the pyrolysis installation, and the gasification lime-ash is discharged from the bottom of the gasification furnace (7)；
The pyrolysis installation includes pyrolysis oven (12) and booster fan (15), and the pyrolysis oven (12) and the pyrolysis oven are to material list
Member connection, the pyrolysis feed for being sent to are pyrolyzed, and pyrolysis gas and charcoal, the pyrolysis gas and the pyrolysis are generated
The gasification gas mixing that furnace (12) lower part is passed through obtains biological flue gas, and the biological flue gas is discharged from the top of the pyrolysis oven (12)
And it is sent into the coal-burning boiler (17) by booster fan (15), the charcoal is discharged simultaneously from the bottom of the pyrolysis oven (12)
It is collected；The biological flue gas carries out mixed combustion in the coal-burning boiler (17) with coal dust.
2. fire coal coupled biological matter power generating simultaneously charcoal system as described in claim 1, which is characterized in that the gasification dress
Set further includes the burner (14) being arranged between the cyclone separator (8) and pyrolysis oven (12), the cyclone separator (8)
The gasification gas is respectively fed in the pyrolysis oven (12) and burner (14), or the gasification gas is all sent into the combustion
In burner (14), wherein the gasification gas burning for entering the burner (14) generates flue gas, and the flue gas is sent into the heat
It solves in furnace (12), so that carrying out pyrolytic reaction for it provides heat.
3. fire coal coupled biological matter power generating simultaneously charcoal system as claimed in claim 1 or 2, which is characterized in that the gas
The fluidizing air flow rate (9) for further including setting between the cyclone separator (8) outlet and gasification furnace (7), institute are set in makeup
It states the carbon containing fine grained of fluidizing air flow rate (9) for isolating the cyclone separator (8) and is sent into the gasification furnace (7)
Continue to gasify, while also the part carbon containing fine grained gasifying as gasification reactor.
4. fire coal coupled biological matter power generating simultaneously charcoal system as claimed in any one of claims 1 to 3, which is characterized in that
The gasification furnace feeder unit include sequentially connected gasification furnace feed bin (2), level-one batcher (4), Starlike valve (5) and second level to
Material machine (6), the gasification furnace feed bin (2) connect with the pretreatment unit (1), for storing the gasified raw material, described two
Grade batcher (6) is connect with the gasification furnace (7), and when work, the gasified raw material successively passed through the level-one batcher (4), star
Type valve (5) and second level batcher (6) are delivered in the gasification furnace (7)；The pyrolysis oven feeder unit includes sequentially connected
Pyrolysis oven feed bin (3) and batcher (11), the pyrolysis oven feed bin (3) connect with the pretreatment unit (1), for storing
Pyrolysis feed is stated, the batcher (11) connect with the pyrolysis oven (12), for the pyrolysis feed to be sent into the pyrolysis
Furnace (12).
5. fire coal coupled biological matter power generating simultaneously charcoal system as described in claim 1, which is characterized in that the fire coal coupling
Symphysis substance power generating simultaneously charcoal system further includes the biology being arranged between the pyrolysis oven (12) and coal-burning boiler (17)
Give out of gas device (16), and the biological flue gas bleeding device (16) is used for will be described when system starts or is in an emergency
Biological flue gas is externally discharged, and the biological flue gas is avoided to enter the coal-burning boiler (17).
6. fire coal coupled biological matter power generating simultaneously charcoal system as described in claim 1, which is characterized in that the gasification dress
The slag cooler (10) for further including setting in the gasification furnace (7) outlet at bottom is set, the slag cooler (10) is for cooling down the gas
Ashing slag, while using the heat air of the gasification lime-ash, and the air of preheating is passed through the gasification furnace (7).
7. fire coal coupled biological matter power generating simultaneously charcoal system as claimed in claim 2, which is characterized in that the pyrolysis dress
The charcoal collector (13) for further including setting in the pyrolysis oven (12) outlet at bottom is set, the charcoal collector (13) is used
In the cooling charcoal, while using the heat air of the charcoal, and the air of preheating is passed through the burning
Device (14) burns for the gasification gas to be used.
8. fire coal coupled biological matter power generating simultaneously charcoal system as described in claim 1, which is characterized in that the biology combustion
Gas enters from the top of the coal-burning boiler (17), for promoting coal-burning boiler to fire again, to reduce NOx generation.
9. fire coal coupled biological matter power generating simultaneously charcoal system as described in claim 1, which is characterized in that the biology combustion
Gas enters from the lower part of the coal-burning boiler (17), for promoting coal dust firing.
10. such as the described in any item coal-fired coupled biological matter power generating simultaneously charcoal systems of claim 5~9, which is characterized in that
The gasified raw material includes one of stalk, husk and city solid waste or a variety of, the pyrolysis feed include timber, shell and
One of bamboo is a variety of.
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| CN111849560A (en) * | 2020-07-27 | 2020-10-30 | 哈尔滨工业大学 | Device and method for combined production of biochar by coupling gasification of reciprocating grate with coal-fired power generation |
| CN112226241A (en) * | 2020-09-30 | 2021-01-15 | 山东大学 | System and method for co-producing coal gas and powdery active coke |
| CN115287101A (en) * | 2022-08-15 | 2022-11-04 | 上海发电设备成套设计研究院有限责任公司 | Device and method for producing biochar and steam through biomass pyrolysis and gasification |
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