CN207294702U - Gasification of biomass-circulating fluidized bed boiler combined generating system - Google Patents
Gasification of biomass-circulating fluidized bed boiler combined generating system Download PDFInfo
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- CN207294702U CN207294702U CN201720898030.8U CN201720898030U CN207294702U CN 207294702 U CN207294702 U CN 207294702U CN 201720898030 U CN201720898030 U CN 201720898030U CN 207294702 U CN207294702 U CN 207294702U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses gasification of biomass circulating fluidized bed boiler combined generating system, belongs to biomass efficient and utilizes generation technology；Biomass direct combustion power generation technical costs height, small scale at present；Biomass blending and burning technology mixed-fuel burning proportion is low, and technical difficulty is of high cost；Gasifying electricity generation technology not only has the generating equipments such as gas turbine, internal combustion engine higher technical requirements, but also efficiency of energy utilization is low, and cost is higher；For above technical barrier, the utility model avoids biomass direct combustion power generation and mixes burning by biomass gasification technology and the Joint Production of circulating fluidized bed boiler generation technology；Soft circulation circuit is set up between biomass gasification system and circulating fluidized bed boiler electricity generation system, carries out high-temperature fuel gas waste heat recovery；Air preheating system is set up in biomass gasification system waste heat recovery low-temperature zone, gasification furnace is improved and enters stove medium temperature, improve system energy utilization ratio；The utility model provides a convenient, inexpensive, safe and efficient approach for the utilization of biomass resource.
Description
Technical field
The utility model belongs to biomass efficient and utilizes technical field, particularly belongs to gasification of biomass-recirculating fluidized bed pot
Stove combined generating system.
Background technology
The yield of biomass in China is big, widely distributed.Traditional simple burning disposal mode not only causes serious ring
Border pollution problem, also creates the huge wasting of resources.Biomass energy substantially comes from the carbon of the earth's crust by biology
Photosynthesis stores solar energy, it utilizes release and " recurrence " process of carbon that process is solar energy.Therefore, biomass energy
Using extra carbon emission will not be caused.It is optimization China's energy resource structure, control environmental pollution that the clean and effective of biomass, which utilizes,
With the effective way for reducing " carbon emission ".
The gas-to electricity mode of biomass mainly includes direct combustion power generation technology, blended burning of coal fired boiler generation technology and life at present
Gasification substance generation technology.Biomass direct combustion power generation technology is by the use of biomass as fuel, by way of directly burning
High temperature and high pressure steam is produced, the technology for recycling steam to drive steam turbine to generate electricity.Blended burning of coal fired boiler technology is to use
Biomass substitutes part coal as fuel, the technology to be generated electricity using coal-burning boiler and steam turbine.Gasification of biomass is sent out
Power technology is then that biomass gasifies under high temperature environment first, produces combustible gas, then using gas turbine or
The technology that the equipment such as internal combustion engine generate electricity.
Biomass direct combustion power generation technology is limited to raw material supply and technology developing stage, and the scale of generating electricity is subject in the current situation
Very big limitation, and generating efficiency is also high.Blended burning of coal fired boiler generation technology is due to the use of coal-burning boiler as combustion
Burn equipment, it is contemplated that the characteristic of biomass in itself and coal are widely different, therefore, are not changing or are changing original production equipment less
In the case of mixed-fuel burning proportion be limited by very large.It is unstable that boiler operatiopn is easy to cause if large scale mixes burning, easily
Produce production accident.Biomass Gasification Power Generation Technology then due to gasification produce combustible gas contain higher concentration tar and other
Impurity, the requirement to equipment such as generating equipments (gas turbine, internal combustion engine) is high, causes of high cost, technical difficulty.Therefore, study
The biomass generation of economical rationality is that current China's biomass clean efficiently utilizes in safe and reliable, cost in development technique
Key subjects.
The content of the invention
In order to overcome the above-mentioned problems of the prior art, the utility model aim be to provide a kind of gasification of biomass-
Recirculating fluidized bed combined generating system, by the way that biomass gasification technology is coupled with circulating fluidized bed boiler electricity generation system,
By the use of biomass gasification system produce combustion gas be used as circulating fluidized bed boiler part of fuel, and biomass gasification system with
Thermal cycle is established between circulating fluidized bed boiler systems, circulating fluidized bed boiler is given using gasification of biomass residual heat high-temperature part
Water or steam turbine System steam are heated, while use gasification waste heat low temperature part heating and gasifying air and biomass material,
The integral energy utilization ratio of raising system.
To achieve the above objectives, the utility model uses following scheme：
A kind of gasification of biomass-circulating fluidized bed boiler combined generating system, including Circulating Fluidized Bed Gasifier For Biomass
2, the feed(raw material)inlet of the Circulating Fluidized Bed Gasifier For Biomass 2 is connected with the material outlet of biomass milling equipment 1, biomass
The gasification gas outlet of circle fluidized-bed gasification furnace 2 is connected with the gasification gas entrance of Circulating Fluidized Bed Gasifier For Biomass separator 3；
The solid matter outlet connection Circulating Fluidized Bed Gasifier For Biomass 2 of the Circulating Fluidized Bed Gasifier For Biomass separator 3
Returning charge entrance, the gasification gas outlet of Circulating Fluidized Bed Gasifier For Biomass separator 3 are sequentially communicated biomass gasified gas waste heat and return
Receiving apparatus 4, shaped Venturi dedusting device 5, gasification of biomass gas wash tower 6 and biomass gasified gas storage cabinet 7；The biogas
The gasification gas outlet for changing gas storage cabinet 7 is connected with the gasification gas entrance of circulating fluidized bed boiler 9, the cigarette of circulating fluidized bed boiler 9
Gas outlet is sequentially communicated circulating fluidized bed boiler separator 10, recirculating fluidized bed waste-heat recovery device 11, dust-extraction unit 12, desulfurization
Device 13 and chimney 14；The air reheater entrance of the biomass gasified gas waste-heat recovery device 4 and wind turbine 16
Air outlet slit connects, the air reheater outlet of biomass gasified gas waste-heat recovery device 4 and biomass circulating fluid
Bed gasification furnace 2 is connected with the air intake of biomass milling equipment 1；The shaped Venturi dedusting device 5 and gasification of biomass air purge
Wash the wastewater outlet connection treatment unit for waste water 8 of tower 6；The biomass milling equipment 1 preheated air outlet with it is ciculation fluidized
The entrance connection of bed boiler dust removal device 12；The feed-water intake of 4 high temperature section of biomass gasified gas waste-heat recovery device is with following
The feedwater outlet connection of circulation fluidized bed boiler oxygen-eliminating device 15, the feedwater outlet of 4 high temperature section of biomass gasified gas waste-heat recovery device
Connected with the boiler feedwater main pipe or high-pressure heater or steam turbine of circulating fluidized bed boiler 9.
The method of work of the gasification of biomass-circulating fluidized bed boiler combined generating system, biomass is in biomass powder
Entered in mill equipment 1 after progress grinding in Circulating Fluidized Bed Gasifier For Biomass 2 and carry out gasification generation biomass gasified gas；
Biomass gasified gas enters Circulating Fluidized Bed Gasifier For Biomass separator 3 and solid material therein is separated return biomass
Circle fluidized-bed gasification furnace 2；Biomass gasified gas passes through when by biomass gasified gas waste-heat recovery device 4 in high temperature section
Air-water heat exchange device heats water, and air is heated by gas-gas heat-exchanger rig in low-temperature zone；Biomass gasified gas is by text
In mound when dust-extraction unit 5, gasification of biomass gas wash tower 6, particulate matter and tar in the gas that gasifies are eluted, and are so incensed that net
Change；Biomass gasified gas finally enters biomass gasified gas storage cabinet 7 and is stored；Stored in biomass gasified gas storage cabinet 7
Biomass gasified gas be passed into by pipeline in circulating fluidized bed boiler 9 and mix burning, the energy production steam of release carries out
Power generation；The flue gas that the burning of circulating fluidized bed boiler 9 produces separates bed material in circulating fluidized bed boiler separator 10 and carries out returning charge,
Then particulate matter and sulfur dioxide in removing flue gas respectively when passing through dust-extraction unit 12, desulfurizer 13, finally by cigarette
Chimney 14 is discharged into air；The low-temperature zone that the compressed air of wind turbine 16 is passed into biomass gasified gas waste-heat recovery device 4 exchanges heat,
Heated air is divided into two-way, and one enters Circulating Fluidized Bed Gasifier For Biomass 2 and is used as gasifying agent, secondly entering life
Material milling equipment 1 preheats raw material；The preheated air of biomass milling equipment 1 is sent to removing for circulating fluidized bed boiler
The entrance of dirt device 12, to realize purification；The waste water that shaped Venturi dedusting device 5 and gasification of biomass gas wash tower 6 produce enters
Discharge or back to shaped Venturi dedusting device 5 and gasification of biomass gas wash tower 6 after being handled into treatment unit for waste water 8
In recycled；Boiler feedwater from circulating fluidized bed boiler oxygen-eliminating device 15 enters biomass gasified gas waste heat recovery
The high temperature section of device 4 exchanges heat, and the boiler feedwater after being heated is sent to the feedwater main pipe or height of circulating fluidized bed boiler 9
Pressure heater or steam turbine are used.
The utility model targetedly solves the crucial problem that biomass generation faces in terms of following three：
1st, since raw material limits, biomass direct combustion power generation system or gasification power generation system power limited, small work(are individually established
In the case of rate, biomass direct combustion power generation system or gasification power generation system cost of investment are very high, and unit generated energy cost is also very high, because
This, relies on existing recirculating fluidized bed power plant to be significantly increased to raw material supply fluctuation using biomass resource power generation at the same time
Adaptability, reduces the cost of biomass resource utilization.
2nd, biomass direct combustion power generation system and biomass blending and burning technology have boiler particular/special requirement, technology due to property of raw material
Difficulty, cost is higher, and mixed-fuel burning proportion and size limit are very big；Low heat value, high tar, height possessed by biomass gasification burning
Cause to carry out that cost of electricity-generating is very high, this is primarily due to work(the features such as ash content and alkali metal content using gas turbine or internal combustion engine
Rate is smaller, material requirements is higher.Directly carried out using biomass gasification burning steam boiler mix burning then can be to avoid this problem.
Circulating fluidized bed boiler has good adaptability for fuel, therefore, gasification of biomass combustion is carried out to circulating fluidized bed boiler
Gas mixes burning, can effectively solve problem above.
3rd, due to the limitation of gas turbine and internal-combustion engine technology so that the efficiency of energy utilization of Biomass Gasification And Power Generation System
It is relatively low, and then cost is higher for the process program of use waste heat recovery, therefore, in biomass gasification system and Circulating Fluidized Bed Process
Joint thermal cycle is carried out between system, the waste heat of gasification furnace exhaust outlet is recycled, is incorporated to recirculating fluidized bed thermal cycle
System, can significantly improve the efficiency of energy utilization of whole system.
In conclusion the utility model it is innovative by biomass gasification system and circulating fluidized bed boiler electricity generation system into
Row Joint Production, is designed by scientific and reasonable process system, can be provided for the utilization of biomass resource one it is convenient,
Low cost, safely and effectively approach, this is for promoting the biomass resource utilization in China to have Great significance.This is just
It is the gasification of biomass-main contribution of recirculating fluidized bed cogeneration technology that the utility model is related to.
The main technical characteristic of the utility model include it is following some：
1st, gasification of biomass production is combined with circulating fluidized bed boiler production process, what biomass gasification process produced
Combustion gas is stored after purification, cooling in gasification gas storage cabinet, and supply circulating fluidized bed boiler carries out mixing burning power generation, mixes
Burning power generation can directly be realized by arranging fuel gas inlet on boiler furnace；
2nd, waste-heat recovery device is increased between biomass gasifying furnace and gas-purification system, from circulating fluidized bed boiler
High temperature section (top) of the feedwater of feed-water deaerator into waste-heat recovery device so that feedwater is heated, and is added afterwards into high pressure
Hot device or boiler feedwater main pipe or steam turbine power generation, the part sensible heat of gasification of biomass outlet of still high-temperature flue gas are recycled；
3rd, air preheating system is set in the low-temperature zone (lower part) of biomass gasifying furnace waste-heat recovery device, from wind turbine
Compressed air is heated in low-temperature zone, is then divided into two-way, provides gasifying agent into biomass gasifying furnace all the way, and another way enters
Feedstock pre-processing system preheats raw material.The preheating of gasifying agent and raw material can reduce the useless consumption of biomass, so that
Improve the calorific value of biomass gasified gas.Dust laden air after raw material preheating is arranged and is carried out to circulating fluidized bed boiler dust-extraction unit
Discharged after processing, small-sized dust-extraction unit can also be set up after raw material preprocessing device dedusting heel row is carried out to dust-laden preheated air
Enter recirculating fluidized bed electricity generation system smoke stack emission.
4th, biomass gasifying furnace uses recirculating fluidized bed, wherein catalyst of the bed material addition dolomite as coke tar cracking.
Combustion gas dedusting decoking after waste-heat recovery device is using the combination of shaped Venturi dedusting and spray column, and the waste water of generation is through useless
Recycle or arrange outside again after water treatment unit.
By the way that gasification of biomass and recirculating fluidized bed electricity generation system are carried out Joint Production, strong overcomes the utility model
Existing biomass generation defect.The utility model can realize the biology that safe and convenient, cost are relatively low, efficiency is higher
Matter using energy source.
Brief description of the drawings
Fig. 1 is to meet the utility model gasification of biomass-circulating fluidized bed boiler combined generating system.
Embodiment
The utility model is gasification of biomass-circulating fluidized bed boiler combined generating system, and attached drawing 1 illustrates the system.
The system is divided into gasification of biomass production system, circulating fluidized bed boiler production system and waste heat recycling system, hereafter first
First carry out system synthesis explanation, then the design parameter of each system and giving careful note to details is described in detail.
Gasification of biomass-circulating fluidized bed boiler combined generating system synthesis explanation：
Biomass carries out entering in Circulating Fluidized Bed Gasifier For Biomass 2 after grinding in biomass milling equipment 1
Carry out gasification and produce biomass gasified gas；Biomass gasified gas enter Circulating Fluidized Bed Gasifier For Biomass separator 3 by its
In solid material separation return Circulating Fluidized Bed Gasifier For Biomass 2；Biomass gasified gas is passing through waste-heat recovery device 4
When, water is heated by air-water heat exchange device in high temperature section, air is heated by gas-gas heat-exchanger rig in low-temperature zone；Biomass
Gas gasify when by shaped Venturi dedusting device 5, gasification of biomass gas wash tower 6, the particulate matter and tar in the gas that gasifies are washed
De-, gasification gas is purified；Biomass gasified gas finally enters biomass gasified gas storage cabinet 7 and is stored；Gasification of biomass
The biomass gasified gas stored in gas storage cabinet 7 is passed into circulating fluidized bed boiler 9 by pipeline to carry out mixing burning, the energy of release
Amount produces steam and generates electricity；The flue gas that the burning of circulating fluidized bed boiler 9 produces divides in circulating fluidized bed boiler separator 10
Returning charge is carried out from bed material, then by the particulate matter and dioxy in removing flue gas respectively when dust-extraction unit 12, desulfurizer 13
Change sulphur, air is discharged into finally by chimney 14；The compressed air of wind turbine 16 is passed into biomass gasified gas waste-heat recovery device 4
Low-temperature zone exchanges heat, and heated air is divided into two-way, and one enters Circulating Fluidized Bed Gasifier For Biomass 2 as gasification
Agent, preheats raw material secondly entering biomass milling equipment 1；The preheated air of biomass milling equipment 1, which is sent to, to follow
The entrance of the dust-extraction unit 12 of circulation fluidized bed boiler, to realize purification；Shaped Venturi dedusting device 5 and gasification of biomass gas wash tower
6 waste water produced are entered in treatment unit for waste water 8 handled after discharge or back to shaped Venturi dedusting device 5 and biology
Recycled in matter gasification gas wash tower 6；Boiler feedwater from circulating fluidized bed boiler oxygen-eliminating device 15 enters biology
The high temperature section of matter gasification gas waste-heat recovery device 4 exchanges heat, and the boiler feedwater after being heated is sent to circulating fluidized bed boiler 9
Feedwater main pipe either high-pressure heater or steam turbine are used.
Each system explanation of gasification of biomass-circulating fluidized bed boiler combined generating system：
1. gasification of biomass production system
Fixed bed biomass gasification furnace is not appropriate for large scale industry production, and caused fuel gases calorific value is low, tar content
Higher, purified treatment is complicated, and biomass fluid bed gasification furnace, and particularly circulating fluidized-bed biomass gasifier can adapt to greatly
The industrial production of scale, the fuel gases calorific value of generation is high, and tar content is relatively low, and therefore, the utility model selects recirculating fluidized bed
Gasification furnace is as biomass gasification equipment.Charging in view of recirculating fluidized bed has the dimensions requirement, for this reason, system includes
A set of raw mill plant, that is, biomass milling equipment 1, can be crushed to reduced size by the raw material of the large-sizes such as stalk.This
Outside, in order to further reduce produced biomass gas tar oil content, dolomite is added in the bed material of recirculating fluidized bed, is managed
The dolomite component thought is configured to CaCO3/MgCO3=1-1.5, particle diameter 2-7mm.
For the ease of waste heat recovery, residual neat recovering system is additionally arranged in gasification of biomass outlet of still, is described in detail later.
The purification of biological fuel gas mainly includes dedusting and devokes, since the tar content that circulating fluidized bed boiler produces in itself is relatively low, to
Increase dolomite further reduces the tar content in biological fuel gas in bed material, and therefore, the system need not increase Jiao
Oil-breaking system, the purification of combustion gas can be realized only with venturi system and spray column.Come from recirculating fluidized bed pot
The feedwater of stove electricity generation system and the water outlet of waste water treatment system spray into flue at the trunnion of shaped Venturi dedusting device 5, with combustion gas
Mixed, the tar and flying dust in combustion gas are eluted, and are deposited to 5 bottom of shaped Venturi dedusting device, and hereafter combustion gas enters
Into gasification of biomass gas wash tower 6, the water of spraying layer is also at the feedwater and waste water of circulating fluidized bed boiler electricity generation system
Reason system, flying dust and tar in combustion gas are further eluted, and are deposited to 6 bottom of gasification of biomass gas wash tower.Combustion gas is passed through
Stored after two-step purification into biomass gasified gas storage cabinet 7.And shaped Venturi dedusting device 5, gasification of biomass gas wash tower 6
Outside the waste water discharge tower containing the impurity such as tar, flying dust in combustion gas of bottom, into waste water treatment system.
In general, waste water treatment system includes filtering absorption, aeration, precipitation and four units of biochemical treatment.Filtering
Absorbing unit, remaining ash content carries out after can making full use of gasification of biomass, these ash contents have larger specific surface area,
The impurity such as the tar in waste water can fully be adsorbed.In aeration unit, by being largely oxygenated into waste water, Coal Gas Washing Cycling Water
Organic matter constantly aoxidizes, and can reduce rapidly organic concentration.Then by precipitation unit by the solid matter in waste water
Be removed, waste water at this time has been able to handle using biochemical method, therefore, finally again by biochemical treatment unit after
Reach recycling requirement.
2. circulating fluidized bed boiler production system
General circulating fluidized bed boiler electricity generation system contain boiler in itself, the UTILIZATION OF VESIDUAL HEAT IN dress such as economizer and air preheater
Put, deduster, desulfurizer etc..In the utility model, the fuel of circulating fluidized bed boiler 9 is mainly based on coal, at the same time
Carry out biomass gasification burning mixes burning.Biomass gasification burning mix burning can by above the air distribution plate of boiler with into coal
Mouth together arranges air inlet to realize.In view of being in positive pressure in the position burner hearth of air inlet, therefore, mix the life of burning
The pressure of gasification substance combustion gas must be more than or equal to the wind pressure of coal spread wind or First air.
Flue gas after burning is entered among economizer, air preheater, and fume afterheat is constantly recycled, for heating
Boiler Steam and primary and secondary air.Dust-extraction unit can remove flying dust in flue gas, and existing production system is mostly bag-type dust
Device.Although many circulating fluidized bed boiler possess furnace sorbent injection desulfurization system, consider that existing environmental protection standard is stringenter, because
This, many power plant there is also mounted single desulfurizer, and generally semidry process desulfurizer, last flue gas are discharged among air.
3. waste heat recycling system
The utility model devises combined cycle production between biomass gasification system and recirculating fluidized bed electricity generation system
System, to improve the efficiency of energy utilization of whole system.
1) recirculating fluidized bed electricity generation system boiler is entered deoxygenation by the requires of the utility model afterwards via low-pressure heater
Feedwater in device introduces 4 high temperature section of biomass gasifying furnace waste-heat recovery device, in general, the combustion gas of the high temperature section by pipeline
Temperature can reach more than 700-800 DEG C, and by heat exchanger, part feedwater is heated and fuel gas temperature reduces, so as to recycle
Waste heat gas, improves efficiency of energy utilization.Feedwater after heating can be recycled to high-pressure heater or boiler feedwater
Main pipe or steam turbine, the whereabouts of feedwater are depended primarily upon in design process, and the state after feedwater heating is calculated according to heat exchange.Big
Under partial picture, since the scale of gasification of biomass is much smaller than the scale of circulating fluidized bed boiler, the rule of part feedwater
Mould can carry out different designs according to whereabouts.
2) it is heated in the low-temperature zone of gasification of biomass waste-heat recovery device 4, the compressed air for coming from wind turbine, at the same it is right
Biomass gasification burning is further cooled down, recovery waste heat energy.Air after being heated is partly into biomass
Circle fluidized-bed gasification furnace is produced as gasifying agent, and another part then heats raw material.After heating raw material
Air dust-laden, therefore, can individually set up deduster carry out dedusting after discharged, the dirt of collection enters gas with raw material
Change stove, which can also be directly sent into the dust pelletizing system of recirculating fluidized bed.Due to scale is smaller, the part dirt
Former dust pelletizing system flying dust physicochemical property will not be produced and significantly affected.
Claims (3)
- A kind of 1. gasification of biomass-circulating fluidized bed boiler combined generating system, it is characterised in that：Including biomass circulating fluid Bed gasification furnace (2), the feed(raw material)inlet of the Circulating Fluidized Bed Gasifier For Biomass (2) and the raw material of biomass milling equipment (1) Outlet, the outlet of gasification gas and the Circulating Fluidized Bed Gasifier For Biomass separator of Circulating Fluidized Bed Gasifier For Biomass (2) (3) gasification gas entrance connection；The solid matter outlet connection biology of the Circulating Fluidized Bed Gasifier For Biomass separator (3) The returning charge entrance of matter circle fluidized-bed gasification furnace (2), Circulating Fluidized Bed Gasifier For Biomass separator (3) gasification gas outlet according to Secondary connection biomass gasified gas waste-heat recovery device (4), shaped Venturi dedusting device (5), gasification of biomass gas wash tower (6) and life Gasification substance gas storage cabinet (7)；The outlet of gasification gas and the circulating fluidized bed boiler (9) of the biomass gasified gas storage cabinet (7) The connection of gasification gas entrance, the exhanst gas outlet of circulating fluidized bed boiler (9) be sequentially communicated circulating fluidized bed boiler separator (10), Recirculating fluidized bed waste-heat recovery device (11), circulating fluidized bed boiler dust-extraction unit (12), desulfurizer (13) and chimney (14)； The air reheater entrance of the biomass gasified gas waste-heat recovery device (4) connects with the air outlet slit of wind turbine (16) It is logical, the air reheater outlet of biomass gasified gas waste-heat recovery device (4) and Circulating Fluidized Bed Gasifier For Biomass (2) air intake with biomass milling equipment (1) connects；The shaped Venturi dedusting device (5) and gasification of biomass gas washing The wastewater outlet connection treatment unit for waste water (8) of tower (6)；The preheated air outlet and circulation of the biomass milling equipment (1) The entrance connection of fluidized-bed combustion boiler dust-extraction unit (12)；The feedwater of biomass gasified gas waste-heat recovery device (4) high temperature section Entrance is connected with the feedwater outlet of circulating fluidized bed boiler oxygen-eliminating device (15), biomass gasified gas waste-heat recovery device (4) high temperature The feedwater outlet of section is connected with the boiler feedwater main pipe or high-pressure heater or steam turbine of circulating fluidized bed boiler (9).
- 2. a kind of gasification of biomass-circulating fluidized bed boiler combined generating system according to claim 1, its feature exist In：The circulating fluidized bed boiler dust-extraction unit (12) is bag filter.
- 3. a kind of gasification of biomass-circulating fluidized bed boiler combined generating system according to claim 1, its feature exist In：The desulfurizer (13) is semidry process desulfurizer.
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| CN201720898030.8U CN207294702U (en) | 2017-07-21 | 2017-07-21 | Gasification of biomass-circulating fluidized bed boiler combined generating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735371A (en) * | 2019-02-13 | 2019-05-10 | 浙江大学 | A kind of biomass circulating fluidized bed direct-combustion boiler and its with gasification furnace coupled electricity-generation co-producing active carbon system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735371A (en) * | 2019-02-13 | 2019-05-10 | 浙江大学 | A kind of biomass circulating fluidized bed direct-combustion boiler and its with gasification furnace coupled electricity-generation co-producing active carbon system |
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