CN206385100U - Pulsed circle fluidized-bed gasification furnace - Google Patents
Pulsed circle fluidized-bed gasification furnace Download PDFInfo
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- CN206385100U CN206385100U CN201621387161.1U CN201621387161U CN206385100U CN 206385100 U CN206385100 U CN 206385100U CN 201621387161 U CN201621387161 U CN 201621387161U CN 206385100 U CN206385100 U CN 206385100U
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- gasification
- stove seat
- pulse tube
- tube
- pulsed
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Abstract
The utility model discloses the stove seat of a kind of pulsed circle fluidized-bed gasification furnace, including lower end closed, it is characterised in that：Also include the more than two gasification accelerating tubes and gasification pulse tube being staggeredly connected, gasification accelerating tube is connected firmly with stove seat, and the internal diameter of gasification accelerating tube is less than the internal diameter of gasification pulse tube；Gasifying agent inlet pipe and scum pipe are provided with stove seat, scum pipe is provided with residual cake valve；Stove seat is connected by blast pipe with blower fan, and igniter is provided with the gasification accelerating tube of bottom, is provided with batcher on gasification pulse tube, plasma gun and blast pipe are provided with the gasification pulse tube of the top；Not only gasification efficiency is high for the utility model, can greatly improve the calorific value and purity of combustion gas, and is difficult blowing out, ensures that equipment is normally run for a long time, can also effectively crack the tar in combustion gas, it is ensured that the normal work of follow-up equipment.
Description
Technical field
The utility model is related to a kind of gasification furnace for biomass granule fuel and garbage derivatived fuel RDF-5, especially
It is a kind of pulsed circle fluidized-bed gasification furnace.
Background technology
It is used widely in garbage as resource process field and biomass resource because source is sufficient, environment-friendly；It is logical
Cross to garbage derivatived fuel RDF-5, biomass resource gasify, and to obtain combustion gas be wherein more efficient Land use systems；It is existing
To house refuse, biomass granule fuel, which is gasified mainly, two kinds of devices of fixed bed and fluidized-bed gasification furnace, and the former can not
Continuous work, conducts heat, mass transfer is also uneven, be difficult maximization, it is difficult to realize industrialization, the application of scale；The latter by
Bottom sets air distribution plate to form fluidisation state during burning in stove, and the reactions such as oxidizing fire, reduction and thermal decomposition are carried out with air,
Part material is burnt there is provided the energy required for reduction and pyrolysis with the oxygen in air, and most of raw material is in height
Thermally decomposed under warm anaerobic condition, to obtain gasification burning；But because the granularity of biomass granule fuel is uneven, bulky grain
Fuel is difficult to blow afloat, and which can not be gasified totally；Too low plus such as gasification temperature, then pyrolysis efficiency is relatively low, obtains combustion gas
Calorific value and purity, which are difficult to meet, to be required, causes the wasting of resources；As gasification temperature it is too high, then more than ash fusion point, formed in stove compared with
Many burs, easily block air distribution plate and ash discharging hole, cause blowing out, influence production efficiency；And contain more Jiao in gasification burning
Oil, the combustion gas can have a strong impact on the operation of generating set as being used for internal combustion unit generation, tar therein, now many to be set using special
It is standby as static tar precipitating device goes out tar removing, cause cost to increase so that using being restricted.
The content of the invention
The purpose of this utility model is that not enough there is provided a kind of gasification of pulsed recirculating fluidized bed for prior art above-mentioned
Stove and the gasification system and method using the gasification furnace, it not only gasification efficiency it is high, the calorific value and purity of combustion gas can be greatly improved,
And be difficult blowing out, ensure that equipment is normally run for a long time, the tar in combustion gas can be also effectively cracked Ji bioxin, it is ensured that follow-up
The normal work and environmental protection of equipment.
In order to achieve the above object, pulsed circle fluidized-bed gasification furnace of the present utility model, includes the stove of lower end closed
Seat, it is characterised in that：Also include the more than two gasification accelerating tubes and more than two gasification pulse tubes being staggeredly connected, gasification
Accelerating tube is connected firmly with stove seat, and the internal diameter of gasification accelerating tube is less than the internal diameter of gasification pulse tube；Gasifying agent inlet pipe is provided with stove seat
And scum pipe, scum pipe is provided with residual cake valve；Stove seat is connected by blast pipe with blower fan, is set on the gasification accelerating tube of bottom
There is igniter, be provided with batcher on gasification pulse tube, plasma gun and blast pipe are provided with the gasification pulse tube of the top；
Deslagging impeller is provided with by rotating shaft as to further improvement of the utility model, stove seat is interior, rotating shaft and stove seat are outer
Reducing motor be connected；It is easy to discharge the dry ash in stove seat；
Cone section is equipped with as the bottom to further improvement of the utility model, gasification pulse tube；Beneficial to fluidisation state
Formed；
The utility model is by controlling excess air coefficient in stove, and in micro- oxygen condition, biomass granule fuel can not be complete
Full burning, in-furnace temperature is controlled below 800 DEG C, less than ash fusion point, will not block scum pipe and residual cake valve, prevents blowing out, guarantor
Card equipment is normally run for a long time；The granular fuel of different-grain diameter enters in gasification pulse tube, and the granular fuel of small particle is easy
Blown afloat, be gasified totally, the granular fuel of big particle diameter and the particle that is not gasified totally are gentle by gasification accelerating tube because of heavier-weight
Change different air velocity effects in pulse tube, can repeatedly rise in stove, fall, form fluidisation state, can by abundant pyrolytic gasification
The gasification efficiency and gas production of material are improved, the calorific value and purity of combustion gas can be greatly improved；Start plasma gun, produce high-temperature electric
Arc so that the regional temperature in the gasification pulse tube is up to more than 1150 DEG C so that fuel is also fired gasification by complete pyrolytic gasification
Coke tar cracking in gas is combustion gas, can improve the calorific value and reduction tar content of combustion gas, be provided for the normal work of follow-up equipment
Condition, also further improves combustion gas purity；As the steam of gasifying agent, the heat exchange efficiency of granular fuel and flue gas can be improved, together
When suppress in-furnace temperature and rise too high；
In summary, not only gasification efficiency is high for the utility model, can greatly improve the calorific value and purity of combustion gas, and be difficult to stop
Stove, guarantee equipment are normally run for a long time, can also effectively crack the tar in combustion gas, it is ensured that the normal work of follow-up equipment.
Brief description of the drawings
Fig. 1 is the front view of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
As shown in figure 1, the pulsed circle fluidized-bed gasification furnace of the embodiment, includes stove seat 1, the phase of interlocking of lower end closed
Three gasification accelerating tubes 2 of connection and three gasification pulse tubes 3, gasification accelerating tube 3 and the welding of stove seat 1 of bottom are connected firmly, and are gasified
The internal diameter of accelerating tube 3 is less than the internal diameter of gasification pulse tube 3, and the bottom of gasification pulse tube 3 is equipped with cone section as transition, beneficial to stream
Change the formation of state；Gasifying agent inlet pipe 4 and scum pipe 5 are provided with stove seat 1, scum pipe 5, which is provided with residual cake valve 6, stove seat 1, to be passed through
Rotating shaft is provided with deslagging impeller 7, and rotating shaft is connected with the reducing motor outside stove seat 1（It is not shown）；Stove seat 1 passes through blast pipe and blower fan 8
It is connected, ignition 9 is provided with the gasification accelerating tube 2 of bottom, is given on the gasification pulse tube 3 of bottom provided with spiral
Material machine 10, is provided with plasma gun 11 and blast pipe 12 on the gasification pulse tube 3 of the top；
When the utility model is used：Biomass granule fuel is sent into gasification pulse tube 3, at it by screw(-type) feeder 10
Lower section is passed through pressure wind by blower fan 8 and is passed through the steam as gasifying agent by gasifying agent inlet pipe 4, and is entered by ignition 9
Row igniting, it is 0.2~0.5 to control excess air coefficient scope in stove；Now fraction biomass granule fuel burns, temperature in stove
Degree is less than 800 DEG C；Remaining biomass granule fuel by Action of Wind pressure, blown afloat upwards, and the wind speed in the accelerating tube 2 that gasifies is faster than
Wind speed in gasification pulse tube 3, partial particulate fuel rises, fallen repeatedly, forms fluidisation state, can be sufficiently vaporized, produces gas
Change combustion gas；Start plasma gun 11, produce high-temperature electric arc, using plasma heating so that the region in the gasification pulse tube 3
Temperature is up to more than 1150 DEG C so that the coke tar cracking in gasification burning is combustion gas；
The utility model is 0.2~0.5 by controlling excess air coefficient scope in stove, in micro- oxygen condition, biomass
Granular fuel can not be burnt completely, and in-furnace temperature is controlled below 800 DEG C, less than ash fusion point, will not form bur, it is to avoid stifled
Scum pipe 5 and residual cake valve 6 are filled in, blowing out is prevented, ensures that equipment is normally run for a long time；The granular fuel of different-grain diameter and weight
Into in gasification pulse tube 3, the granular fuel of small particle is easily blown afloat, it is easy to be gasified totally, and the granular fuel of big particle diameter and is not had
The particle being gasified totally because of heavier-weight, by gasification accelerating tube 2 and gasification pulse tube 3 because internal diameter it is different formed by difference air-flows
The effect of speed, can repeatedly rise in stove, fall, and form fluidisation state, effectively extension residence time of the bulky grain in stove from
And the purpose fully gasified is reached, the gasification efficiency and gas production of material can be improved, the calorific value and purity of combustion gas is greatly improved；Open
Dynamic plasma gun 11, generation high-temperature electric arc so that the regional temperature in the gasification pulse tube is up to more than 1150 DEG C so that fuel quilt
Abundant pyrolytic gasification, realization is gasified totally, and is also combustion gas by the coke tar cracking in gasification burning, can improve the calorific value and drop of combustion gas
Low tar content, condition is provided for the normal work of follow-up equipment, also further improves combustion gas purity；It is used as the steaming of gasifying agent
Vapour, because its thermal capacitance is larger, can improve the heat exchange efficiency of granular fuel and flue gas, accelerate gasification, rise while suppressing in-furnace temperature
Too high, control in-furnace temperature is less than 800 DEG C；It is easy to discharge the dry ash in stove seat 1 by impeller 7
It is biological particles material, straws molding mass, garbage derivatived fuel RDF5 and life that the utility model, which adapts to material,
Material powdered granule material etc..
Claims (3)
1. a kind of pulsed circle fluidized-bed gasification furnace, includes the stove seat of lower end closed, it is characterised in that：Also include staggeredly being connected
More than two gasification accelerating tubes and more than two gasification pulse tubes, gasification accelerating tube and stove seat connects firmly, gasification accelerating tube
Internal diameter be less than gasification pulse tube internal diameter；Gasifying agent inlet pipe and scum pipe are provided with stove seat, scum pipe is provided with residual cake valve；
Stove seat is connected by blast pipe with blower fan, and igniter is provided with the gasification accelerating tube of bottom, is provided with gasification pulse tube
Batcher, is provided with plasma gun and blast pipe on the gasification pulse tube of the top.
2. pulsed circle fluidized-bed gasification furnace according to claim 1, it is characterised in that：It is provided with stove seat by rotating shaft
Deslagging impeller, rotating shaft is connected with the reducing motor outside stove seat.
3. pulsed circle fluidized-bed gasification furnace according to claim 1 or 2, it is characterised in that：Gasify under pulse tube
Portion is equipped with cone section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387161.1U CN206385100U (en) | 2016-12-16 | 2016-12-16 | Pulsed circle fluidized-bed gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387161.1U CN206385100U (en) | 2016-12-16 | 2016-12-16 | Pulsed circle fluidized-bed gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206385100U true CN206385100U (en) | 2017-08-08 |
Family
ID=59488722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621387161.1U Active CN206385100U (en) | 2016-12-16 | 2016-12-16 | Pulsed circle fluidized-bed gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206385100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753578A (en) * | 2016-12-16 | 2017-05-31 | 四川雷鸣环保装备有限公司 | Pulsed circle fluidized-bed gasification furnace and the gasification system and method using the gasification furnace |
| CN111729621A (en) * | 2020-06-11 | 2020-10-02 | 西北大学 | Be applied to miniature pulse fluidized bed device of superfine powder fluidization |
-
2016
- 2016-12-16 CN CN201621387161.1U patent/CN206385100U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753578A (en) * | 2016-12-16 | 2017-05-31 | 四川雷鸣环保装备有限公司 | Pulsed circle fluidized-bed gasification furnace and the gasification system and method using the gasification furnace |
| CN111729621A (en) * | 2020-06-11 | 2020-10-02 | 西北大学 | Be applied to miniature pulse fluidized bed device of superfine powder fluidization |
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