CN208087555U - Cyclone type fluidized-bed gasification furnace - Google Patents
Cyclone type fluidized-bed gasification furnace Download PDFInfo
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- CN208087555U CN208087555U CN201820446197.5U CN201820446197U CN208087555U CN 208087555 U CN208087555 U CN 208087555U CN 201820446197 U CN201820446197 U CN 201820446197U CN 208087555 U CN208087555 U CN 208087555U
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- China
- Prior art keywords
- furnace body
- gasification
- bed gasification
- discharge bucket
- chuck
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- 238000002309 gasification Methods 0.000 title claims abstract description 53
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000567 combustion gas Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 10
- 230000003247 decreasing effect Effects 0.000 abstract description 5
- 230000011218 segmentation Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 13
- 239000002028 Biomass Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005235 decoking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a kind of cyclone type fluidized-bed gasification furnaces, including bearing, furnace body, exhaust pipe, conical discharge bucket, spiral lime-ash machine；Lower portion of furnace body above conical discharge bucket is associated with primary air piping, primary air piping is tangentially-arranged along furnace body and is associated with primary air fan, and lower part interval is installed with chuck in furnace body, and the furnace body above chuck is equipped with one section of horizontal baffle；One Bunker is mutually connected in the furnace body above baffle with fuel feedstock screw conveyer by wind closing type discharger and is associated with along the tangentially-arranged secondary air channel of furnace body, and secondary air channel is associated with overfire air fan；Upper of furnace body above secondary air channel is associated with bed material pressure feeding spiral formula conveyer；The utility model can accurately control gasification temperature, and realize low middle high score segmentation gasification, it is ensured that the continuity of production and greatly improve gasification efficiency and gas production, and the tar content in combustion gas is greatly decreased.
Description
Technical field
The utility model is related to a kind of gasification furnaces, are especially used for the cyclone type of a variety of biomass organic waste granular fuels
Fluidized-bed gasification furnace.
Background technology
It is used widely in garbage as resource processing and biomass processes because source is sufficient, environmental-friendly；By right
Derivatived fuel and biomass resource are gasified to obtain combustion gas to be wherein more efficient Land use systems；It is existing to house refuse and
Biomass granule fuel, which is gasified mainly, two kinds of devices of fixed bed and fluidized-bed gasification furnace, the former is unable to continuous work, passes
Heat, mass transfer is also uneven, is not easy enlargement, it is difficult to realize the application of industrialization, scale；The latter by stove lower part be arranged
Air distribution plate or taper furnace body carry out oxidizing fire, reduction and thermal decomposition etc. to form fluidisation state when gasification, with air and react, portion
Divide raw material to burn with the oxygen in air, provides reduction and the required energy of pyrolysis, most of raw material is in high temperature
It is thermally decomposed under anaerobic condition, to obtain gasification burning；But since the granularity of biomass granule fuel is uneven, bulky grain combustion
Material is difficult to blow afloat, and which cannot be gasified totally；In addition gasification temperature is difficult to accurately control, if gasification temperature is too low, then it is pyrolyzed
Efficiency is relatively low, and the calorific value and purity of obtained combustion gas are difficult to meet the requirements, and result in waste of resources；If gasification temperature is excessively high, then particle
Fuel is more than ash fusion point, and more bur is formed in stove, easily blocks air distribution plate and ash discharging hole, causes blowing out, influences production effect
Rate；And furnace temperature is unable to reach 1100 DEG C or more, and more tar is contained in gasification burning, easy coking in use need to be taken off
Coke processing, causes cost to increase.
Invention content
The purpose of this utility model is the above-mentioned deficiency for the prior art, provides a kind of cyclone type fluidized-bed gasification furnace,
It can accurately control gasification temperature, and realize low middle high score segmentation gasification, it is ensured that the continuity of production and greatly improve gasification
Efficiency and gas production, and the tar content in combustion gas is greatly decreased, it is brought convenience to follow-up use.
In order to achieve the above object, the cyclone type fluidized-bed gasification furnace of the utility model, including bearing, furnace body, it is coupled to stove
The exhaust pipe on body top, it is characterised in that further include the conical discharge bucket for being coupled to bottom of furnace body, the outlet of conical discharge bucket and spiral shell
Lime-ash machine is revolved to be connected；Lower portion of furnace body above conical discharge bucket is associated with one or more primary air piping, and every primary air piping is equal
Tangentially-arranged along furnace body and be associated with primary air fan, lower part interval is installed with chuck in furnace body corresponding with primary air fan,
Furnace body above chuck is equipped with one section of horizontal baffle；One Bunker is spirally conveyed by wind closing type discharger with fuel feedstock
Machine is connected, and the outlet of fuel feedstock screw conveyer is connected with the furnace body above baffle, and the furnace body above baffle is associated with one
Root is associated with overfire air fan with the tangentially-arranged secondary air channel of upper edge furnace body, secondary air channel；On the furnace body above secondary air channel
Portion is associated with bed material pressure feeding spiral formula conveyer；
In use, fuel is added continuously by wind closing type discharger, fuel feedstock screw conveyer in stove, First air
Machine and overfire air fan start, and First air is sprayed into stove after upper and lower baffling after chuck barrier and jacket for heat exchange with cyclone mode
Body lower part is blown afloat upwards again, and fluidized wind is formed in stove, and heavier fuel particle falls into conical discharge bucket and closed,
It avoids leaking out, this is quiet phase region, and temperature is relatively low, carries out low temperature gasification, and lime-ash is discharged by spiral lime-ash machine；The slightly light fuel of weight
Particle aggregation carries out medium temperature gasification, also assures lower portion of furnace body and taper in the corresponding emulsion zone of chuck, temperature also below ash fusion point
Hopper lime-ash noncoking ensures the continuity of production；By the penetrating Secondary Air of secondary air channel cyclone type, fuel and Secondary Air
Mixed at high speed is uniform, and the temperature of stove internal upper part dilute-phase zone can be improved, and carries out rapidly high-temperature gasification, realizes the cracking that tar is precipitated
Gasification, greatly improves gasification efficiency and gas production, and the tar content in combustion gas is greatly decreased；It is conveyed by bed material pressure feeding spiral formula
Machine is intermittently sent into the particles of inorganic material of lightweight high heat capacity, such as ceramics, alumina particle, can uniformly dilute-phase zone temperature field,
Ensure the abundant progress of high-temperature gasification；
One kind as the utility model being preferably associated with several piece heat exchanger fin in the lateral wall of chuck；Can be improved First air with
The heat transfer effect of chuck, it is ensured that gasification temperature is met the requirements in stove；
One kind as the utility model being preferably equipped with regulating valve on primary air piping and secondary air channel；Convenient for control
The temperature and oxygen concentration of emulsion zone and dilute-phase zone in stove avoid coking and reduce to fire to accurately control the gasification temperature in each area
Tar content in gas；
Preferably, exhaust pipe is also connected with cyclone separator one kind as the utility model, the discharge gate of cyclone separator
It is connected in furnace body；Cyclone separator may separate out a small amount of fuel particle that is not gasified totally in combustion gas, and sends back in stove and continue
Gasification；
One kind as the utility model preferably, upper level sensor is equipped on conical discharge bucket and lower material position senses
Device；Being automatically drained out for lime-ash in conical discharge bucket can be achieved, and ensure seal；
Preferably, wind closing type discharger is also spirally conveyed by buffering chamber with fuel feedstock one kind as the utility model
Machine is connected；Buffering chamber can realize the without interruption of fuel particle, meet the needs that the gasification reaction time is short, response intensity is high；
In conclusion the utility model can accurately control gasification temperature, and realize low middle high score segmentation gasification, it is ensured that raw
The continuity of production and gasification efficiency and gas production are greatly improved, and the tar content in combustion gas is greatly decreased, to subsequently using band
To facilitate.
Description of the drawings
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the A-A sectional views of Fig. 1.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the cyclone type fluidized-bed gasification furnace, including bearing 1, furnace body 2, the exhaust for being coupled to upper of furnace body
Pipe 3, the conical discharge bucket 4 for being coupled to bottom of furnace body, exhaust pipe 3 are connected with cyclone separator 19, the discharge gate of cyclone separator 19
It is connected in furnace body 1；The outlet of conical discharge bucket 4 is connected with spiral lime-ash machine 5, and upper material position is equipped on conical discharge bucket and is sensed
Device 20 and lower level sensor 21；Lower portion of furnace body above conical discharge bucket 4 is associated with two primary air pipings 6, two First airs
Pipe 6 is tangential and arranged symmetrically along furnace body and is associated with primary air fan 7, the lower part interval in furnace body corresponding with primary air fan 7
It is installed with chuck 9, chuck 9 is connected by the side wall of several connecting rods and furnace body 1, and several piece heat exchanger fin is associated in the lateral wall of chuck 9
18, the furnace body 1 above chuck 9 is equipped with one section of horizontal baffle 10；One Bunker 11 by concatenated wind closing type discharger 12,
Buffering chamber 13 is connected with fuel feedstock screw conveyer 14, outlet and 10 top of baffle of fuel feedstock screw conveyer 14
Furnace body 1 be connected, the furnace body 1 above baffle 10 is associated with two along the tangentially-arranged secondary air channel 15 of furnace body, secondary air channel 15
It is associated with overfire air fan 16, regulating valve 8 is equipped on primary air piping 6 and secondary air channel 15；Stove above secondary air channel 16
Body top is associated with bed material pressure feeding spiral formula conveyer 17；
In use, fuel passes through Bunker 11, wind closing type discharger 12, buffering chamber 13, fuel feedstock screw conveyer
14 are added continuously in stove, and wind closing type discharger 12 can prevent from leaking out；Primary air fan 7 and overfire air fan 16 start, First air quilt
Chuck 9 and the barrier of baffle 10 are sprayed into cyclone mode under furnace body after exchanging heat with chuck 9 and heat exchanger fin 18 after upper and lower baffling
Portion is blown afloat upwards again, and fluidized wind is formed in stove, and heavier fuel particle falls into conical discharge bucket 4 and closed, avoided
It leaks out, this is quiet phase region, and temperature is relatively low, less than 150-200 DEG C below fuel ash melting point temperature, low temperature gasification is carried out, after gasification
Lime-ash be discharged by spiral lime-ash machine 5；The slightly light fuel particle of weight is gathered in 9 corresponding emulsion zone of chuck, and temperature is less than combustion
Expect 50-150 DEG C of ash fusion point or less, carries out medium temperature gasification, quiet phase region and emulsion zone ensure in lower portion of furnace body and conical discharge bucket
Lime-ash noncoking avoids blocking, blowing out, ensures the continuity of production；Pass through the penetrating Secondary Air of 15 cyclone type of secondary air channel, combustion
Material is uniform with Secondary Air mixed at high speed, and the temperature of stove internal upper part dilute-phase zone, middle and upper part freeboard temperature 900-1100 can be improved
DEG C, gas outlet temperature carries out rapidly high-temperature gasification up to 1100 DEG C or more, realizes the cracking gas that tar is precipitated in combustion gas
Change, greatly improves gasification efficiency and gas production, gas deliverability can improve 80-100%, and the tar in combustion gas is greatly decreased and contains
Amount is handled without decoking, is brought convenience to follow-up use；All carbonaceous materials crack completely under higher than 1100 DEG C temperature conditions
Gasification, remaining lime-ash is without residual carbon；The inorganic matter of lightweight high heat capacity is intermittently sent by bed material pressure feeding spiral formula conveyer 17
Particulate bed material, such as ceramics, alumina particle, can uniformly dilute-phase zone temperature field, reduce temperature fluctuation, it is ensured that high-temperature gasification fills
Divide and carries out；
The utility model uses whirlwind type gasification equipment, and the purpose is to keep biological particles fluidization not in whirlwind effect
It will appear material bubbling, uneven heating phenomenon, while having the function that whirlwind keeps material mutually broken, and returned at a high speed in stove
Turn, under the action of pressure-air centrifugal force, the space in stove is divided into many cracking region by air stream, and combustible ratio is in tradition
Gasification furnace in pyrolysis rate improve several times；By controlling First air intake and pressure, the needs of different gasification materiels are adapted to；
The heat transfer effect of First air and chuck 9 can be improved in heat exchanger fin 18, and one time wind-warm syndrome reaches 450-500 DEG C, it is ensured that in stove
Gasification temperature is met the requirements；Regulating valve 8 is convenient for controlling the temperature and oxygen concentration of emulsion zone and dilute-phase zone in stove, to accurately control
The gasification temperature in each area avoids coking and reduces the tar content in combustion gas；
Cyclone separator 19 may separate out a small amount of fuel particle that is not gasified totally in combustion gas, and sends back to and continue gas in stove
Change；
The driving motor of upper level sensor 20 and lower level sensor 21 and controller and spiral lime-ash machine 5 is connected,
When ash height reaches upper level sensor 20, driving spiral lime-ash machine 5 starts ash discharge, and being down to lower material position when ash height passes
When sensor 21, spiral lime-ash machine 5 stops ash discharge, it can be achieved that lime-ash is automatically drained out in conical discharge bucket 4, and ensures seal；
By wind closing type discharger 12, buffering chamber 13 and fuel feedstock screw conveyer 14, it can be achieved that fuel particle
It is without interruption, meet the needs that the gasification reaction time is short, response intensity is high.
Claims (6)
1. a kind of cyclone type fluidized-bed gasification furnace, including bearing, furnace body, the exhaust pipe for being coupled to upper of furnace body, it is characterised in that also
The outlet of conical discharge bucket including being coupled to bottom of furnace body, conical discharge bucket is connected with spiral lime-ash machine；On conical discharge bucket
The lower portion of furnace body of side is associated with one or more primary air piping, and every primary air piping is tangentially-arranged along furnace body and is associated with First air
Machine, lower part interval is installed with chuck in furnace body corresponding with primary air fan, and the furnace body above chuck is equipped with one section of level
Baffle；One Bunker is connected by wind closing type discharger with fuel feedstock screw conveyer, and fuel feedstock spirally conveys
The outlet of machine is connected with the furnace body above baffle, and the furnace body above baffle is associated with one with tangentially-arranged secondary of upper edge furnace body
Air hose, secondary air channel are associated with overfire air fan；Upper of furnace body above secondary air channel is associated with bed material pressure feeding spiral formula conveyer.
2. cyclone type fluidized-bed gasification furnace according to claim 1, it is characterised in that：It is associated with several piece in the lateral wall of chuck
Heat exchanger fin.
3. cyclone type fluidized-bed gasification furnace according to claim 1 or 2, it is characterised in that：In primary air piping and Secondary Air
Regulating valve is equipped on pipe.
4. cyclone type fluidized-bed gasification furnace according to claim 3, it is characterised in that：Exhaust pipe also with cyclone separator phase
Even, it is connected in the discharge gate and furnace body of cyclone separator.
5. cyclone type fluidized-bed gasification furnace according to claim 4, it is characterised in that：Feeding is equipped on conical discharge bucket
Level sensor and lower level sensor.
6. cyclone type fluidized-bed gasification furnace according to claim 5, it is characterised in that：Wind closing type discharger also passes through caching
Storehouse is connected with fuel feedstock screw conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820446197.5U CN208087555U (en) | 2018-03-30 | 2018-03-30 | Cyclone type fluidized-bed gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820446197.5U CN208087555U (en) | 2018-03-30 | 2018-03-30 | Cyclone type fluidized-bed gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208087555U true CN208087555U (en) | 2018-11-13 |
Family
ID=64057244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820446197.5U Expired - Fee Related CN208087555U (en) | 2018-03-30 | 2018-03-30 | Cyclone type fluidized-bed gasification furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN208087555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373933A (en) * | 2018-03-30 | 2018-08-07 | 四川雷鸣环保装备有限公司 | Cyclone type fluidized-bed gasification furnace |
-
2018
- 2018-03-30 CN CN201820446197.5U patent/CN208087555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373933A (en) * | 2018-03-30 | 2018-08-07 | 四川雷鸣环保装备有限公司 | Cyclone type fluidized-bed gasification furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |