CN206428196U - It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars - Google Patents
It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars Download PDFInfo
- Publication number
- CN206428196U CN206428196U CN201720019494.7U CN201720019494U CN206428196U CN 206428196 U CN206428196 U CN 206428196U CN 201720019494 U CN201720019494 U CN 201720019494U CN 206428196 U CN206428196 U CN 206428196U
- Authority
- CN
- China
- Prior art keywords
- tar
- biomass
- gasification
- updraft type
- oxide layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Industrial Gases (AREA)
Abstract
The utility model discloses a kind of for biomass and the updraft type steam gasification device of blended tars, tar after emulsification is sufficiently mixed on updraft type fixed bed biomass gasification furnace top with biomass material, the temperature of gasification burning is reduced using the mixture of biomass material and tar, the content of tar heavy oil in reduction combustion gas；Simultaneously, utilize updraft type fixed bed biomass gasification furnace middle height, biomass and blended tars is set uniformly to dry at a slow speed, the moisture of biomass and the mixture of tar is dried to less than 10%, ensure that updraft type fixed bed biomass gasification furnace bottom pyrolysis reduction area and oxidizing fire area operating mode are not influenceed by tar water, so as to realize the mixing gasifying of biomass material and tar in gasification furnace, solve prior art and send the high tar of water content back to change (such as temperature reduction that high-temperature oxydation area causes equipment for gasification oxidizing fire area operating mode, increase air ratio etc.), cause the problem of gasification result is deteriorated.
Description
Technical field：
The utility model is related to biomass energy technology field, and in particular to a kind of for biomass and blended tars
Updraft type steam gasification device.
Background technology：
Common biomass gasification device includes fluid bed, downdraft fixed bed, up and down updraft type fixed bed, persorption streaming
Fixed bed etc. type of furnace.Fixed bed be difficult compared with fluidized-bed gasification furnace amplification, the intensity of gasification it is relatively low, but also have its significantly it is excellent
Point, such as simple in construction, low cost, operation are easy, low available for lump material, fly ash content, therefore biological in middle and small scale
Matter combustion-gas jet test field is still preferable selection.
Fixed-bed gasification furnace contains updraft type and the basic type of furnace of two kinds of downdraft, and the main distinction is the operation of air-flow and fuel
Direction is different, and the air-flow of uniflow gas stove flows from bottom to top, and the air-flow in down-draft type gasifying furnace flows from top to bottom, fuel
It is to fall by free gravity.Due to the difference of reaction in furnace feature, the chamber structure of two kinds of type of furnaces is also otherwise varied.With under
Suction fixed-bed gasification furnace is compared, and the major advantage of uniflow gas stove is：Btu utilization is more abundant, fuel gases calorific value compared with
Height, running resistance is low, and flying dust carries less.But updraft type fixed-bed gasification furnace also has the shortcomings that it is significantly difficult to overcome,
I.e. tar content is more in combustion gas, typically about 30~150g/Nm3 (S.Heidenreich, et al.Prog Energy
Combust Sci,2015)。
The presence of tar reduces gasification efficiency, easily blocks gas pipeline, cleaner and gas equipment.Some applications
Extremely low level is down in combustion gas by application requirements：Gas turbine, synthetic fuel etc. require that gas tar oil content is less than number mg/Nm3
Magnitude (N.Abdoulmoumine et al.Appl.Energy, 2015)；National standard《The artificial coals of GB/T 13612-2006
Gas》Provide that tar and dust total content are less than 10mg/m3；National standard《GB 50494-2009 city gas technical specifications》Rule
Solid-state, liquid or colloid substance should not be contained by determining no matter any source of city gas.Therefore, in order to meet special applications need
Ask, reduction gasification furnace outlet gas tar content will greatly mitigate successive depths cleaning system operating load.
From the aspect of operating cost and practicality, existing uniflow gas stove typically coordinates system for wet purification to use,
But as run time extends, tar washed wastewater gradually saturation, how to consume this part tar washed wastewater turns into puzzlement industry development
Technical barrier.Chinese patent 200910025366.3 discloses a kind of upper suction with tar backflash device or downdraft is fixed
Bed stalk gasifier, thick combustion gas of gasifying carries out dedusting by filter collector first, then by inertia with cooling down Jiao being combined
Trap for oil carries out tar trapping, and the tar trapped is back to gasification furnace by Action of Gravity Field and gas ejector action
Combustion zone, tar is cracked and burnt under the hot conditions in the area.Similarly, Chinese invention announces 201510532462.2
Disclose and lead back the burning of gasification furnace oxygen-rich area to obtain from the method handled by dust-laden tar.The common spy of this class patent
Point is to send biomass coke tar back to gasification furnace combustion zone, hot environment burning or pyrolysis fuel oil group using gasification furnace oxidation zone domain
Point.Due to the aqueous height of tar, its loopback can cause change (such as temperature reduction, increase air ratio of equipment for gasification combustion zone operating mode
Deng), cause gasification result to be deteriorated, acquired a certain degree of difficulty so implementing.
Utility model content：
The purpose of this utility model is to provide a kind of updraft type steam gasification for biomass and blended tars and filled
Put, the tar after emulsification is sufficiently mixed on updraft type fixed bed biomass gasification furnace top with biomass material, reduce, gasification
The temperature of the thick combustion gas of stove gas outlet, the content of tar heavy oil in reduction combustion gas；Meanwhile, by biomass and the moisture of blended tars
Drying is to less than 10%, it is ensured that updraft type fixed bed biomass gasification furnace bottom pyrolytic layer, reducing zone and oxide layer operating mode not by
The influence of tar water, so as to realize the mixing gasifying of biomass material and tar in gasification furnace, solving prior art will
The high tar of water content sends change (such as temperature reduction, increase air that high-temperature oxydation area causes equipment for gasification oxide layer operating mode back to
Than etc.), cause the problem of gasification result is deteriorated.
The utility model is achieved by the following technical programs：
A kind of to be used for the updraft type steam gasification device of biomass and blended tars, the device includes updraft type and gasified
Stove, the uniflow gas stove is divided into oxide layer, reducing zone, pyrolytic layer, baking zone and mixed zone from the bottom to top；On described
Sucking type gasifier top is provided with gas outlet and charging aperture, and top is provided with tar water entrance after emulsification, and oxide layer bottom is provided with
Air interface；The gas outlet is connected with indirect cooler, tar is separated with combustion gas and obtain upper strata contain tar light oil
Water and the water containing heavy tar of lower floor；The oxide layer and reducing zone intersection are circumferentially with common nozzle interface, described common
Nozzle interface is with compressed steam orifice, and the common nozzle interface of pressurized steam from oxide layer and reducing zone intersection is equal
Even penetrating burner hearth；Tar water entrance is used to input water containing heavy tar or water containing tar light oil after the emulsification.
Especially, the common nozzle interface is also with the orifice of water containing tar light oil, and atomized water containing tar light oil is with adding
Press the common nozzle from the compressed steam and the atomized water containing tar light oil of oxide layer and reducing zone intersection after water vapour mixing
Interface uniformly sprays into burner hearth.
The mixed zone is highly not less than 2.0m, and baking zone, the height of pyrolytic layer are not less than 4.0m, oxide layer, reduction
The height of layer is not less than 1.0m.
Especially, tar water entrance is 1-4 after the emulsification；The oxide layer and reducing zone intersection are circumferentially with
The common nozzle interface of pressurized steam and the water containing tar light oil is 4-6.
The beneficial effects of the utility model are as follows：
1) the utility model utilize uniflow gas stove top free space and feeding device, after condensed tar is emulsified with
Biomass material is mixed, realize and tar is sent back to the purpose of gasification furnace second gasification, it is to avoid energy entrained by tar
Loss；
2) the utility model can reduce the temperature that fuel gas of gasifying furnace exports thick combustion gas, heavy tar components in combustion gas is condensed simultaneously
The surface of raw material is adsorbed onto, the tar heavy oil content and sensible heat loss of the carrying of combustion gas is significantly reduced；
3) the utility model uniformly dries biomass and blended tars using gasification furnace reducing zone high-temperature fuel gas and makes it
Pyrolysis, it is ensured that the operating mode of gasification furnace bottom pyrolytic layer, reducing zone and oxide layer is not by the high shadow of the moisture of waste water containing tar heavy oil
Ring, so as to realize the mixing gasifying of biomass material and tar in gasification furnace；
4) the common nozzle interface input steam of the utility model and atomization waste water suppress the generation of ash erosion phenomenon, and carry
High reduction reaction effect, regulates and controls gas component.
In a word, the utility model can reduce the content of tar heavy oil in combustion gas；Meanwhile, utilize updraft type fixed bed biomass gas
Change stove middle height, biomass and blended tars is uniformly dried at a slow speed, the moisture of biomass and the mixture of tar is dried
Do to less than 10%, it is ensured that updraft type fixed bed biomass gasification furnace pyrolytic layer, reducing zone and oxide layer operating mode be not by tar water
The influence divided, so as to realize the mixing gasifying of biomass material and tar in gasification furnace.The utility model is simple in construction, aerogenesis
Clean, energy consumption is low, gasification efficiency is high, and combustion gas flying dust and ash erosion are greatly decreased, time between overhauls(TBO) extension, and gasifier operation is more
It is reliable and stable, solve prior art and send the high tar of water content back to high temperature oxide layer and cause equipment for gasification oxide layer operating mode
Change (such as temperature reduction, increase air ratio), causes the problem of gasification result is deteriorated.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 A-A sectional drawings.
Wherein, 1, oxide layer；2nd, reducing zone；3rd, pyrolytic layer；4th, baking zone；5th, mixed zone；6th, charging aperture；7th, it is burnt after emulsifying
Profit entrance；8th, air interface；9th, compressed steam interface；10th, the interface of atomized water containing tar light oil；11st, gas outlet；
12nd, nozzle interface；13rd, burner hearth.
Embodiment：
Further illustrated the following is to of the present utility model, rather than to limitation of the present utility model.
Embodiment 1：
As shown in Figure 1 a kind of is used at the updraft type steam gasification device of biomass and blended tars, biomass
Reason amount 1.5t/h, the device includes uniflow gas stove, and main body is that cylindrical refractory material builds burner hearth 13 and steel furnace shell by laying bricks or stones,
Furnace shell bottom is provided with the rotary fire grate connected by dynamic sealing, and the rotary fire grate has air concurrently and entered and distributed function；It is described
Uniflow gas stove is divided into oxide layer 1, reducing zone 2, pyrolytic layer 3, baking zone 4 and mixed zone 5 from the bottom to top；The upper suction
Formula gasification furnace top is provided with gas outlet 11 and charging aperture 6, and top is provided with tar water entrance 7, oxide layer bottom after 1-3 emulsification
Portion is provided with air interface 8；The gas outlet 11 is connected with indirect cooler, and tar is separated with combustion gas and containing for upper strata is obtained
Tar light oil water and the water containing heavy tar of lower floor；The oxide layer 1 and the intersection of reducing zone 2 are circumferentially with 5 common nozzles
Interface 12, the common nozzle interface 12 is connected with compressed steam interface 9 with the interface of atomized water containing tar light oil 10 respectively, is contained
The atomized water containing tar light oil that tar light oil water is obtained after being atomized through atomizer mixed with pressurized steam after from oxide layer 1 and also
The compressed steam of the former intersection of layer 2 and the common nozzle interface 12 of the atomized water containing tar light oil uniformly spray into burner hearth 13；It is described
Tar water entrance 7 is used to input water containing heavy tar or water containing tar light oil after emulsification；
The height of mixed zone 5 is not less than 2.0m, and baking zone, the height of pyrolytic layer 3 are not less than 4.0m, oxide layer 1, also
The height of former layer 2 is not less than 1.0m.
Gasifier operation load 1t/h, the top aqueous solution containing tar light oil straying quatity 300kg/h, the water containing tar light oil
The tar-concentration of solution is that (i.e. the mass ratio of tar and water is 15 to 15wt.%:85), bottom is passed through air by air interface 8
Measure about 1000Nm3/ h, saturated steam amount about 80kg/h, the saturated steam parameter are passed through by compressed steam interface 9
For 0.25~0.4MPa, 127~143 DEG C, the interface of water atomization containing tar light oil 10 is closed.Under this service condition, biomass is former
Expect uniflow gas stove prepare containing the condensed emulsification of tar fuel gas after obtained emulsified heavy tar water and biomass material
Mixed in gasification furnace top mixed zone 5,1~2h of residence time, the thermal current that lower section rises is run into baking zone 4, remove moisture
While the part tar cooling in air-flow is retained；The raw material of removing moisture, which is displaced downwardly to pyrolytic layer 3 and is further heated, occurs heat
Solution resolves into volatile matter and solid coke, and volatile matter takes top to by air-flow；Solid coke sequentially enters the He of reducing zone 2 of lower section
Oxide layer 1；In 2 residence time of reducing zone, 2~3h, in 1 combustion zone residence time of oxide layer about 0.5h, while air is from updraft type
The furnace bottom that gasifies enters oxide layer 1, occurs oxidation reaction with solid coke, discharges substantial amounts of heat；Oxidation product and coke
Occur reduction reaction generation carbon monoxide, hydrogen and methane in reducing zone 2, mixed upwards with the volatile matter that pyrolysis decomposition goes out；Plus
Pressure water vapour is uniformly sprayed into from oxide layer 1 and the intersection of reducing zone 2；The combustion gas that reducing zone is produced is upwardly into pyrolytic layer, with heat
Solve the volatile matter decomposed and enter mixed zone together, from gas outlet discharge.80~100 DEG C of gas outlet temperature, combustion gas composition and
Calorimetry is shown in Table 1, and outlet gas tar content is less than 30mg/Nm3, gasify cold air efficiency about 79%.
The combustion gas composition of table 1. and calorimetry
Embodiment 2：
Device reference implementation example 1, operating load 1t/h, air input is 1000Nm3/ h, top is water-soluble containing heavy tar
Liquid straying quatity 200kg/h, the concentration of aqueous solution containing heavy tar be 50wt.%, bottom saturated steam input quantity about 50~
80kg/h, the interface of water atomization containing tar light oil 10 is opened, and bottom atomized water containing tar light oil input quantity 20kg/h, wherein tar is dense
Spend for 15wt.%.On this condition, tar heavy oil water and biomass material are mixed in uniflow gas stove top mixed zone after emulsification
Close, run into the thermal current that lower section rises in baking zone, retain the part tar cooling in air-flow while removing moisture；Removing
The raw material of moisture is displaced downwardly to pyrolytic layer and is further pyrolyzed into volatile matter and solid coke, and volatile matter takes top to by air-flow；Solid
Coke sequentially enters the reducing zone and oxide layer of lower section；Air enters oxide layer from uniflow gas stove bottom simultaneously, with solid
Oxidation reaction occurs for coke, discharges substantial amounts of heat；Oxidation product occurs reduction reaction in reducing zone with coke and generates an oxygen
Change carbon, hydrogen and methane, mixed upwards with the volatile matter that pyrolysis decomposition goes out；Water containing tar light oil mixed with pressurized steam after from
Uniformly sprayed into after oxide layer and the atomization of reducing zone intersection, oxicracking occurs in high temperature environments for one side light tar, another
Aspect water vapour simultaneously participates in the reforming reaction of tar；The combustion gas that reducing zone is produced reforms obtained gas with light tar oxicracking
Body, is upwardly into pyrolytic layer, and mixed zone is entered together with volatiles, from gas outlet discharge.Produce exchangeability referring to
Shown in table 1.Outlet gas tar content is less than 30mg/Nm3, gasify cold air efficiency about 82%.
Embodiment 3：
Device reference implementation example 1, difference is, biomass processes amount 2t/h, and 4 are provided with the top of described device
Tar water entrance 7 after emulsification, the oxide layer 1 and the intersection of reducing zone 2 are circumferentially with 4 common nozzle interfaces 12.
Operating load 2t/h, the top aqueous solution containing heavy tar 300~500kg/h of straying quatity, bottom passes through air interface 8
Air intake be 2000Nm3/ h, bottom is described by the saturated steam input quantity 650kg/h of compressed steam interface 9
Saturated steam parameter be 0.25~0.4MPa, 127~143 DEG C, bottom is by the interface of atomized water containing tar light oil 10 containing light
Matter tar atomized water input quantity 100kg/h, wherein 50~100g/L of tar content.Under this service condition, water containing heavy tar
Solution and biomass material stop 1.0 in uniflow gas stove top mixed zone 5 residence time, 1.0~1.5h, in baking zone 4~
1.5h, stops 1.0h, in 2 residence time of reducing zone 1.0h, in the residence time of oxide layer 1 about 0.5h, combustion gas goes out in pyrolytic layer 3
Mouthful temperature is<120 DEG C, outlet gas tar content 30mg/Nm3, tar content after combustion gas is separated through indirect condensing and electric tar
For 20mg/Nm3, gasification efficiency 83.5%.
200 DEG C are not generally greater than using the gas outlet temperature of general updraft type fixed-bed gasification furnace of the present utility model,
Gasification efficiency is hardly higher than 75%.The utility model can substantially reduce outlet gas tar compared to traditional uniflow gas stove
Content, improves gasification efficiency, effectively consumes tar washed wastewater, improves fuel gases calorific value, and combustion gas flying dust and ash erosion are greatly decreased, and examines
Cycle stretch-out is repaiied, gasification furnace is more reliable and stable.
Claims (4)
1. it is a kind of for biomass and the updraft type steam gasification device of blended tars, it is characterised in that the device includes
Uniflow gas stove, the uniflow gas stove is divided into oxide layer, reducing zone, pyrolytic layer, baking zone and mixed from the bottom to top
Close area；The uniflow gas stove top is provided with gas outlet and charging aperture, and top is provided with tar water entrance after emulsification, oxidation
Layer bottom is provided with air interface；The gas outlet is connected with indirect cooler；The oxide layer and reducing zone intersection are circumferential
Provided with common nozzle interface, the common nozzle interface is with pressurized steam orifice, and pressurized steam is from oxide layer and also
The common nozzle interface of former layer intersection uniformly sprays into burner hearth；Tar water entrance, which is used to input, after the emulsification contains heavy tar
Water or water containing tar light oil.
2. it is according to claim 1 for biomass and the updraft type steam gasification device of blended tars, its feature
It is, the common nozzle interface is also with the orifice of water containing tar light oil.
3. according to claim 1 or 2 for biomass and the updraft type steam gasification device of blended tars, it is special
Levy and be, the mixed zone is highly not less than 2.0m, baking zone, the height of pyrolytic layer are not less than 4.0m, oxide layer, reducing zone
Height be not less than 1.0m.
4. according to claim 1 or 2 for biomass and the updraft type steam gasification device of blended tars, it is special
Levy and be, tar water entrance is 1-4 after the emulsification；The oxide layer and reducing zone intersection are circumferentially with pressure (hydraulic) water steaming
The common nozzle interface of gas and the atomized water containing tar light oil is 4-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019494.7U CN206428196U (en) | 2017-01-06 | 2017-01-06 | It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019494.7U CN206428196U (en) | 2017-01-06 | 2017-01-06 | It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206428196U true CN206428196U (en) | 2017-08-22 |
Family
ID=59585269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720019494.7U Withdrawn - After Issue CN206428196U (en) | 2017-01-06 | 2017-01-06 | It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206428196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753567A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of updraft type steam gasification device for biomass and blended tars |
| CN108504396A (en) * | 2018-03-08 | 2018-09-07 | 东南大学 | A kind of biomass segmented gasification process and its special equipment |
| CN113430011A (en) * | 2021-07-26 | 2021-09-24 | 赣州市怡辰宏焰能源科技有限公司 | Conical grate type biomass gasification furnace |
-
2017
- 2017-01-06 CN CN201720019494.7U patent/CN206428196U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753567A (en) * | 2017-01-06 | 2017-05-31 | 中国科学院广州能源研究所 | A kind of updraft type steam gasification device for biomass and blended tars |
| CN106753567B (en) * | 2017-01-06 | 2022-02-25 | 中国科学院广州能源研究所 | Updraft type water vapor gasification device for mixture of biomass and tar |
| CN108504396A (en) * | 2018-03-08 | 2018-09-07 | 东南大学 | A kind of biomass segmented gasification process and its special equipment |
| CN108504396B (en) * | 2018-03-08 | 2020-01-07 | 东南大学 | Sectional biomass gasification method and special equipment thereof |
| CN113430011A (en) * | 2021-07-26 | 2021-09-24 | 赣州市怡辰宏焰能源科技有限公司 | Conical grate type biomass gasification furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105542805B (en) | House refuse vertical and horizontal destructive gasifying cracks three sections of device and process for integrating gas processed | |
| WO2018133303A1 (en) | Method and apparatus for implementing gasification by combining circulating fluidized bed and pyrolysis bed | |
| CN201010626Y (en) | Biomass high-energy high-cleanness cyclone bed combustion partitioned gasifying device | |
| CN102322630A (en) | The macromolecular substances high-efficiency cleaning uses method and device | |
| CN206428196U (en) | It is a kind of to be used for the updraft type steam gasification device of biomass and blended tars | |
| CN209113823U (en) | Sludge and the cooperation-gasified fluidized-bed gasification furnace of biomass | |
| CN102206514B (en) | Two-section biomass cyclone high-temperature pyrolysis gasification furnace | |
| CN107760387A (en) | A kind of high nitrogen biomass castoff gasification, and combustion heating system and technique | |
| CN204786347U (en) | Biomass gasification phase separating combustion furnace | |
| CN206112947U (en) | Coal and domestic waste coupling combustion system | |
| CN106590751A (en) | Biomass gasification method for achieving tar self-digestion | |
| CN201321439Y (en) | Garbage biomass gasification furnace | |
| CN201530809U (en) | Two-stage-plasma high temperature gasification equipment | |
| CN103468321A (en) | Composite type solid-waste gasifying device | |
| CN110486728A (en) | A kind of novel household garbage pyrolyzing, gasifying and incinerating system | |
| CN108949234B (en) | A kind of inverting tar gasification furnace of three layers of gas supply heating | |
| CN106753567A (en) | A kind of updraft type steam gasification device for biomass and blended tars | |
| CN106854475A (en) | A kind of three-stage gasification furnace | |
| CN106635171B (en) | A kind of method and apparatus of biomass pressurized gasification production coal gas | |
| CN203065417U (en) | Three-section authigenic flow guide groove type continuous pyrolysis gasification furnace for bulk rubbish combustible material | |
| CN104152184B (en) | Biomass whirlwind pyrolysis-suspension combustion combined gasification equipment and gasification process thereof | |
| CN107001956B (en) | Carbon-molecule gasification combustion boiler power generation method | |
| JP2007231062A (en) | Gasification system | |
| CN104479742B (en) | Biomass gas preparation system | |
| CN203923116U (en) | A kind of down-draft type gasifying furnace with tar degradation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170822 Effective date of abandoning: 20220225 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170822 Effective date of abandoning: 20220225 |