CN206803124U - A kind of gasification combustion system - Google Patents
A kind of gasification combustion system Download PDFInfo
- Publication number
- CN206803124U CN206803124U CN201720536546.8U CN201720536546U CN206803124U CN 206803124 U CN206803124 U CN 206803124U CN 201720536546 U CN201720536546 U CN 201720536546U CN 206803124 U CN206803124 U CN 206803124U
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- China
- Prior art keywords
- gasification
- vaporizer
- fire grate
- burner hearth
- combustion
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- Gasification And Melting Of Waste (AREA)
Abstract
A kind of gasification combustion system, including preposition gasification installation and rearmounted fire grate burner, and the gasification, and combustion passage being connected with fire grate combustion system below gasification installation.Gasification installation includes vaporizer, the charging aperture being arranged at the top of vaporizer, and gasification air compartment；Gasification air compartment is connected with gasification airduct and steam pipe arrangement.The fire grate burner includes fire grate, burner hearth and the air compartment being in tilted layout.Fire grate front portion is arranged on vaporizer bottom, is communicated with vaporizer；Vaporizer bottom forms gasification, and combustion passage with the space above fire grate, and gasification, and combustion passage connects with the burner hearth of fire grate burner；The comb shape wall that can be adjusted up and down is set in the gasification, and combustion passage close to vaporizer side, and the gasification, and combustion channel roof between comb shape wall and burner hearth is gasification face arch, and gasification, and combustion passage shrinks with burner hearth connector.The utility model has the advantages that fuel tolerance is wide, the discharge of load variations strong adaptability, exhaust pollutant is low, simple in construction, easy to operate.
Description
Technical field
The utility model relates to a kind of gasification combustion system, belong to field of combustion equipment.
Background technology
Small-sized chain furnace or reciprocal push away raise stove operationally, and the coal that coal bunker is added from charging aperture is moved into stove with fire grate
Thorax burns, and easily causes coal seam combustion incomplete, ash content carbon height.If the calorific value of coal is low, easily there is circuit fire phenomenon；If coal
Volatile matter it is high, then the fuel gas that largely evaporates is uncombusted just to be discharged, and is polluted.
With attention of the public to air environmental pollution, the pollution of coal-fired Industrial Boiler, arcola also faces severeer
Improvement or close down pressure, therefore cleaning coal utilization technology is more and more paid attention to.Raw coal gasifies before entering hearth combustion
Pre-burning is also a kind of mode of coal clean utilization.
Coal gasification can provide the combustible gas of cleaning as fuel or raw material, often be considered as the important of coal clean utilization
Mode.Currently used gasification furnace form has fixed bed, fluid bed and air flow bed.Moving bed tends to belong to one kind of fixed bed.
And conventional gasification furnace requires to characteristics such as the ash fusion point of coal, moisture, granularities；Typically need standby heat source；Slightly
It is high containing tar, benzene and phenol etc., waste gas, cost for wastewater treatment in coal gas；Potential safety hazard be present in the process for producing coal gas.
Utility model content
The utility model is directed to above-mentioned the deficiencies in the prior art, there is provided a kind of gasification combustion system, for coal or other
Fuel residues after solid fuel gasification, gasification gas and gasification enter hearth combustion together.
The utility model is achieved by the following technical solution：
A kind of gasification combustion system, it is characterised in that：
The gasification combustion system includes preposition gasification installation and rearmounted fire grate burner, and is filled positioned at gasification
Put the gasification, and combustion passage being connected with fire grate combustion system of lower section；
The gasification installation includes vaporizer, the charging aperture being arranged at the top of vaporizer, and gasification air compartment；The gasification
Air compartment is connected with gasification airduct and steam pipe arrangement；The gasification air compartment is arranged on the lower outside of vaporizer；
The fire grate burner includes fire grate, burner hearth and the air compartment being in tilted layout；Take fuel moving direction as front and rear, institute
State fire grate front portion and be arranged on vaporizer bottom, communicated with vaporizer；It is burner hearth above the back of furnace row；The furnace front is set
Face arch is put, burner hearth postmedian sets rear arch；The air compartment is arranged on fire grate bottom, for being passed through First air；Fire grate afterbody is provided with
Slag-drip opening；
The vaporizer bottom forms gasification, and combustion passage with the space above fire grate, and gasification, and combustion passage burns with fire grate
The burner hearth connection of device；Comb shape wall is set close to vaporizer side in the gasification, and combustion passage, between comb shape wall and burner hearth
Gasification, and combustion channel roof is gasification face arch, and gasification face arch tilts to burner hearth direction；Gasification, and combustion passage is received with burner hearth connector
Contracting, i.e. connector section are the smallest cross-sectional of gasification, and combustion passage.Connect open height h1For the gasification face arch of gasification, and combustion passage 9
10 maximum height h01/5 ~ 3/5, i.e. h1=(1/5~3/5)h0。
In above-mentioned technical proposal, the vaporizer be ladder arrangement upper and lower two-stage vaporizer, the connection of two-stage vaporizer
Place sets banking fire door；Higher level's vaporizer bottom tilts to subordinate's vaporizer, and tilt angle alpha is 30 ° ~ 60 °.
In above-mentioned technical proposal, the another technical solution of vaporizer is：The vaporizer charging aperture set section be
Up-narrow and down-wide trapezoidal bell, vaporizer section are apered to cone bucket shape.
In above-mentioned technical proposal, the inclination angle beta of the fire grate is 0 ~ 8 °；Secondary Air is provided with the face arch of the burner hearth
Mouthful.SNCR is set to spray into pipe in the middle part of the burner hearth.
In above-mentioned technical proposal, the comb shape wall can move up and down；Multiple hole slots are arranged at intervals on the comb shape wall to be formed
Comb shape passage.The hole slot is rectangle or del or inverted trapezoidal or inverted steps shape.
Compared with prior art, the beneficial effects of the utility model are：The setting of staged or contraction type vaporizer, reduce
The accumulation compacting phenomenon of bulky grain solid fuel-feed process, makes charging evenly；The setting of comb shape wall is then in discharge gas in time
While changing gas, the discharge process of residue after gasifying, carbon residue can be delayed, extend vaporization time, enhance gasification result.Tilt
The setting of fire grate, it is easy to fuel to advance with the motion of fire grate, reduces and accumulated in fuel on fire grate, make fuel combustion more abundant.
Urea liquid after atomization is sprayed into by burner hearth from SNCR denitration spout by denitration spray gun, so as to realize the nitrogen oxygen reduced in flue gas
The content of compound.The utility model has that fuel tolerance is wide, load variations strong adaptability, exhaust pollutant discharge low, structure
The advantages that being simple and convenient to operate, be easy to maintain.
Brief description of the drawings
Fig. 1 is a kind of gasification combustion system schematic diagram involved by the utility model.
Fig. 2 is a kind of gasification combustion system another technical solution schematic diagram involved by the utility model.
Fig. 3 is comb shape porthole groove shape schematic diagram described in a kind of gasification combustion system involved by the utility model.
In figure：1- vaporizers；2- charging apertures；3- banking fire doors；4- gasification airducts；5- steam pipe arrangements；6- gasification wind
Room；7- comb shape walls；8- fire grates；9- gasification, and combustion passages；10- gasification face arch；11- face arch；12- air compartments；13- bis- times
Air port；14- burner hearths；15- hole slots；16- rear arches；17- slag-drip openings；18- exhanst gas outlets；19-SNCR entrances；20- electricity
Machine；21- drums.
Embodiment
Concrete structure of the present utility model, operation method and implementation are carried out with embodiment below in conjunction with the accompanying drawings detailed
Discuss.
The orientation such as upper, lower, left, right, front and rear in present specification term be based on position relationship shown in the drawings and
Establish.Accompanying drawing is different, then corresponding position relationship is also possible to change therewith, therefore can not be interpreted as with this to protecting model
The restriction enclosed.
As depicted in figs. 1 and 2, a kind of gasification combustion system described in the utility model, including preposition gasification installation is with after
The fire grate burner put, and the gasification, and combustion passage 9 being connected with fire grate combustion system below gasification installation.
The gasification installation includes vaporizer 1, is arranged on the charging aperture 2 at the top of vaporizer 1, and gasification air compartment 6.It is described
Gasification air compartment 6 is connected with gasification airduct 4 and steam pipe arrangement 5.The gases such as air or oxygen enter gasification air compartment 6 from gasification airduct 4,
Gasifying agent is used as after being mixed with the vapor entered from steam pipe arrangement 5, enters vaporizer 1 from gasification air compartment 6.The gasification air compartment
6 are arranged on the lower outside of vaporizer 1.There is interface channel between gasification air compartment 6 and vaporizer 1.
The fire grate burner includes fire grate 8, burner hearth 14 and the air compartment 12 being in tilted layout.Using fuel moving direction before
Afterwards, the front portion of fire grate 8 is arranged on the bottom of vaporizer 1, is communicated with vaporizer 1.The rear upper of fire grate 8 is burner hearth 14.Stove
Row 8 is reciprocal grate or traveling-grate stoker, is moved under the drive of motor 20.The inclination angle beta of the fire grate 8 is 0 ~ 8 °, i.e. fire grate
Upper surface is 0 ~ 8 ° with horizontal direction angle β.
The space of the bottom of vaporizer 1 and the top of fire grate 8 forms gasification, and combustion passage 9, gasification, and combustion passage 9 and fire grate
The burner hearth 14 of burner connects.Fuel enters vaporizer 1 from charging aperture 2, will be covered positioned at the front portion of fire grate 8 of the bottom of vaporizer 1
Lid, fuel is completely filled with from the front portion of fire grate 8 of the bottom of vaporizer 1 to the space of vaporizer 1, or at least keeps 1/3 to be full of
Degree.Vaporizer 1 and the fuel of the front upper of fire grate 8 are gasified in the presence of the gasifying agent being sent into from gasification air compartment 6, fuel
Residue, carbon residue and the fuel that is not partly gasified totally after gasification convey in the motion process of fire grate 8 to the direction of burner hearth 14.Motor
20 can adjust fire grate transporting velocity so as to influence the gasification degree of fuel with speed governing.It is close in the gasification, and combustion passage 9
The side of vaporizer 1 sets comb shape wall 7, and multiple hole slots 15 are arranged at intervals on comb shape wall 7 and form comb shape passage.It is as shown in figure 3, described
Hole slot 15 is rectangle or del or inverted trapezoidal or inverted steps shape.Gasification gas enters gasification, and combustion passage 9 from comb shape passage.
Comb shape wall 7 can move up and down, and adjust the channel sized of residue and carbon residue movement.Gasification, and combustion passage 9 since comb shape wall 7
The fire grate section of bottom is the middle part of fire grate 8.
The top of gasification, and combustion passage 9 between comb shape wall 7 and burner hearth 14 is gasification face arch 10, and gasification face arch 10 is to burner hearth 14
Direction tilts.Gasification, and combustion passage 9 shrinks with the connector of burner hearth 14, i.e., connector section is cut for the minimum of gasification, and combustion passage 9
Face.Connect open height h1For maximum height h at the gasification face arch 10 of gasification, and combustion passage 901/5 ~ 3/5, i.e. h1=(1/5~3/5)
h0.Gasification gas encircles before gasification to be started to burn at 10, and gasification face arch 10 absorbs flame and the high temperature cigarette caused by gas that gasify in burning
The radiant heat of gas, and concentrate eradiation to the fuel residues at the middle part of fire grate 8, carbon residue and be not gasified totally on fuel, reinforcing gasification,
Burning.Shunk because gasification face arch 10 tilts to burner hearth 14 with connector so that the heat radiation of gasification face arch 10 concentrates on gasification
On the middle part of fire grate 8 of the bottom of burning gallery 9.
The air compartment 12 is arranged on the bottom of fire grate 8, and for being passed through First air, air compartment 12 can set multiple.First air is made
For the oxidant of fuel residues, carbon residue and the fuel combustion that is not gasified totally on fire grate 8.The burner hearth 14 is anterior to set face arch 11,
The postmedian of burner hearth 14 sets rear arch 16.The unburned or unburnt fuel at the middle part of fire grate 8 further burns after entering burner hearth 14.Stove
Arrange 8 afterbodys and be provided with slag-drip opening 17, the residue in afterburnt is discharged from slag-drip opening 17.Cigarette after partial gasification gas and gasification gas burning
Gas, and residue and the flue gas of carbon residue burning enter burner hearth 14, are provided with overfiren air port 13 on face arch 11, the Secondary Air being passed through has
Help gasify gas and the abundant after-flame of flue gas.And the denitrfying agent such as the ammoniacal liquor of the SNCR entrances penetrating of setting, urea in the middle part of burner hearth 14
Reduce NOx generation.Flue gas by denitration purification from the discharge of the exhanst gas outlet 18 on the top of burner hearth 14 carry out follow-up heat exchange and
Purified treatment.As needed, roof of the furnace is provided with drum 21 or drum.The heat exchange of flue gas and heat exchanger components produce hot water or
Steam.
In the above-mentioned technical solutions, vaporizer 1 is provided with numerous embodiments, is not limited to two kinds described below.
A kind of embodiment of vaporizer is：
As shown in figure 1, the vaporizer 1 is the upper and lower two-stage vaporizer of ladder arrangement, the junction of two-stage vaporizer is set
Put banking fire door 3；Higher level's vaporizer bottom tilts to subordinate's vaporizer, and tilt angle alpha is 30 ° ~ 60 °.Banking fire door 3 can open
Close.The effect of banking fire door 3 is, when banking fire door is closed, the fuel of preceding vaporizer 12 and rear vaporizer is separated up and down, plays banking fire
The effect of gasification, now, the fuel on banking fire door top no longer contact lower fuel, avoid top fuel during banking fire from being ignited.Together
When, top fuel also seals.Now vaporizer 1 is intermittent duty.And vaporizer 1 when continuously running banking fire door 3 keep
Open.
Vaporizer another embodiment is：
As shown in Fig. 2 it is up-narrow and down-wide trapezoidal bell that the vaporizer 1 sets section in charging aperture 2, vaporizer 1 is cut
Face is apered to cone bucket shape.The angle δ of the right side inclined plane of vaporizer 1 and horizontal direction is 45 ° ~ 90 °.Solid fuel passes through charging aperture
2 enter vaporizer 1, are scattered under the material toggling effect of bell to the both sides of vaporizer 1, between bell and tapered vaporizer 1
Passage is slid downwards, and slowly gasification is contacted with gasifying agent.The arrangement of bell and the tapered setting of vaporizer 1 so that solid fuel
Charging evenly, it also avoid fuel and directly drop to form compacting accumulation.
Inspection door is equipped with vaporizer 1 and burner hearth 14.
Claims (7)
- A kind of 1. gasification combustion system, it is characterised in that：The gasification combustion system includes preposition gasification installation and rearmounted fire grate burner, and under gasification installation The gasification, and combustion passage being connected with fire grate combustion system of side（9）；The gasification installation includes vaporizer（1）, be arranged on vaporizer（1）The charging aperture at top（2）, and gasification air compartment（6）； The gasification air compartment（6）It is connected with gasification airduct（4）With steam pipe arrangement（5）；The fire grate burner includes the fire grate being in tilted layout（8）, burner hearth（14）And air compartment（12）；Using fuel moving direction as It is front and rear, the fire grate（8）Front portion is arranged on vaporizer（1）Bottom, with vaporizer（1）Communicate；The fire grate（8）Rear upper is Burner hearth（14）；The burner hearth（14）Front portion sets face arch（11）, burner hearth（14）Postmedian sets rear arch（16）；The air compartment（12） It is arranged on fire grate（8）Bottom, for being passed through First air；Fire grate（8）Afterbody is provided with slag-drip opening（17）；The vaporizer（1）Bottom and fire grate（8）The space of top forms gasification, and combustion passage（9）, gasification, and combustion passage（9）With The burner hearth of fire grate burner（14）Connection；In the gasification, and combustion passage（9）Close to vaporizer（1）Side sets comb shape wall （7）, comb shape wall（7）With burner hearth（14）Between gasification, and combustion passage（9）Top is gasification face arch（10）；Gasification, and combustion passage （9）With burner hearth（14）Connector shrinks, i.e., connector section is gasification, and combustion passage（9）Smallest cross-sectional.
- A kind of 2. gasification combustion system according to claim 1, it is characterised in that：The vaporizer（1）Arranged for ladder Upper and lower two-stage vaporizer, the junction of two-stage vaporizer sets banking fire door（3）；Higher level's vaporizer bottom is to subordinate's gas Change room to tilt, tilt angle alpha is 30 ° ~ 60 °；The gasification air compartment（6）It is arranged on vaporizer（1）Lower outside.
- A kind of 3. gasification combustion system according to claim 1, it is characterised in that：The vaporizer（1）In charging aperture（2） Setting section is up-narrow and down-wide trapezoidal bell, vaporizer（1）Section is apered to cone bucket shape.
- A kind of 4. gasification combustion system according to claim 1, it is characterised in that：The fire grate（8）Inclination angle beta be 0~8°；The burner hearth（14）Face arch（11）On be provided with overfiren air port（13）.
- A kind of 5. gasification combustion system according to claim 1 or 4, it is characterised in that：The burner hearth（14）Middle part is set SNCR sprays into pipe（19）.
- 6. according to a kind of gasification combustion system described in claim 1 or 2 or 3, it is characterised in that：The comb shape wall（7）Can on Lower movement；The comb shape wall（7）It is upper to be arranged at intervals multiple hole slots（15）Form comb shape passage.
- A kind of 7. gasification combustion system according to claim 6, it is characterised in that：The hole slot（15）For rectangle or fall Triangle or inverted trapezoidal or inverted steps shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120786X | 2017-02-09 | ||
| CN201720120786 | 2017-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206803124U true CN206803124U (en) | 2017-12-26 |
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ID=60741046
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720536546.8U Expired - Fee Related CN206803124U (en) | 2017-02-09 | 2017-05-16 | A kind of gasification combustion system |
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| Country | Link |
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| CN (1) | CN206803124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023821A (en) * | 2017-02-09 | 2017-08-08 | 北京蔚燃科技有限公司 | A kind of gasification combustion system |
-
2017
- 2017-05-16 CN CN201720536546.8U patent/CN206803124U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023821A (en) * | 2017-02-09 | 2017-08-08 | 北京蔚燃科技有限公司 | A kind of gasification combustion system |
| CN107023821B (en) * | 2017-02-09 | 2023-10-27 | 北京四维天拓技术有限公司 | Gasification combustion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20190516 |