CN108278595A - A kind of coal dust deeply staged combustion method and system - Google Patents
A kind of coal dust deeply staged combustion method and system Download PDFInfo
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- CN108278595A CN108278595A CN201711406682.6A CN201711406682A CN108278595A CN 108278595 A CN108278595 A CN 108278595A CN 201711406682 A CN201711406682 A CN 201711406682A CN 108278595 A CN108278595 A CN 108278595A
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- burner
- coal dust
- medium temperature
- temperature burner
- coal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2201/00—Staged combustion
- F23C2201/10—Furnace staging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
- F23C2700/06—Combustion apparatus using pulverized fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of coal dust deeply staged combustion method and system.System includes the preposition burner, medium temperature burner and separator etc. being sequentially connected.Coal dust carries out partial gasification in preposition burner and generates synthesis gas and unburnt fuel together into medium temperature burner medium temperature suspension combustion under the conditions of staged air distribution.Combustion product carries out gas solid separation by separator, and the solid particle separated, which is transmitted back in medium temperature burner, participates in Matter Transfer and circulating combustion.The present invention carries out partial gasification to coal dust by preposition burner and obtains gasification synthesis gas, it is set to burn in medium temperature burner again, both to it is thin, in, thick three classes particle carried out gasification process, the residence time of pulverized coal particle in the entire system is improved, catching fire for coal dust is conducive to, improves the conversion ratio of coal dust, change the mode that coal-fired mode is coal dust burning and synthesis gas again, the distribution for improving burner hearth interior flow field and temperature field, to keep burning more thorough, burn-off rate higher.
Description
Technical field
The present invention relates to a kind of coal dust deeply staged combustion system and its operation methods, belong to energy machinery apparatus field.
Background technology
In China, coal resources are still main fuel, 60% or more accounting in primary energy total flow, with coal
The variation of essence will not in a foreseeable future occur for the energy resource structure based on charcoal.Coal will generate sulfur-bearing oxygen in combustion
A large amount of pollutants such as compound, nitrogen-containing oxide and lime-ash, serious pollution of ecological environment.Since China's major part coal resources are all
The colm of the high nitrogen of high-sulfur, therefore coal combustion pollutant catabolic gene problem is the major issue for being badly in need of solving.
For the pollution problem of getting worse, the environmental protection standard that country formulates is increasingly strict, and part electricity power enterprise is even more to tie
Close actual conditions and propose tightened up environmental objective --- minimum discharge.Mainly for dust, SOx and NOx etc. are normal for minimum discharge
Atmosphere pollution is advised, so that dust, SOx and NOx is reached minimum discharge standard by technological improvement or exploitation new technology.
At present most coal-fired large-scale power stations using back-end ductwork add the devices such as desulphurization and denitration and electrostatic precipitation to flue gas into
Row processing, makes discharge flue gas reach minimum discharge standard.But this kind of technology installation cost is high, operating cost is high, increases simultaneously
Station service substantially reduces generating efficiency and economic benefit, and takes similar measure more passive, can not effectively fundamentally
Solve the problems, such as the pollutant emission of coal combustion in boiler.In addition to this, more rational technology path is new by changing, organizing
Type combustion system optimizes boiler system structure, realizes the low emission of NOx, SOx in combustion.However, being based on this route institute
Integrated gasification combined cycle plants technology is developed, due to needing to build the special power stations IGCC, early investment is bigger.And recycle stream
The low emission of NOx, SOx can be reached by changing bed technique, but separator device can not detach imperfect combustion coal dust fine grained (＜
30 μm) and middle particle (30~100 μm), therefore coal dust burn-off rate is not high.In summary, burning inferior coal is brought at present
Pollutant emission problem, still do not obtain very basic solution, the relevant technologies still need further to be broken through.
Invention content
The present invention is intended to provide a kind of method and device of pulverized coal staging combustion, improves the burn-off rate of coal dust, pollution is reduced
Discharge.
The invention is realized by the following technical scheme：
A kind of coal dust deeply staged combustion method, the method includes：
The coal dust and First air for meeting granularity requirements are passed through preposition burner from top, in the preposition burner
Carry out imperfect combustion or partial gasification；
The combustion gas that imperfect combustion or partial gasification generate carries uncombusted coal dust and unburned coal dust enters
Medium temperature burner is in suspension combustion under the action of the Secondary Air that medium temperature burner bottom is passed through；Combustion product gases are taken
With uncombusted coal dust uplink, burn under the action of the burnout degree being passed through from medium temperature burner middle and upper part；
Heat smoke after burning, which enters, carries out gas solid separation in separator, the flue gas separated enters later use or straight
Connect dedusting discharge；The solid particle separated is transmitted back to medium temperature burner lower part as circulating ash and participates in Matter Transfer, together
When uncombusted pulverized coal particle be also sent back in medium temperature burner and realize circulating combustion, until after-flame.
In a kind of above-mentioned coal dust deeply staged combustion method, the pulverized coal particle grain size is less than or equal to 200um.
In a kind of above-mentioned coal dust deeply staged combustion method, coal dust conversion ratio in preposition burner is：Particle
The fine powdered coal conversion ratio of grain size ＜ 30um is more than 80%, and grain diameter is that the middle particle coal dust conversion ratio of 30~100um is big
In 40%, the coarse granule coal dust conversion ratio of grain diameter ＞ 100um is more than 10%.
In a kind of above-mentioned coal dust deeply staged combustion method, the usual particle diameter distribution of uncombusted pulverized coal particle is 100
~200um.
A kind of above-mentioned coal dust deeply staged combustion method further includes：When the medium temperature burner starts, in advance described
Medium temperature burner bottom be added particle size range 150~200um sand or coal ash particle as recycle stock.
In a kind of above-mentioned coal dust deeply staged combustion method, the First air excess air coefficient selects 0.3~0.6；Institute
The Overall excess air coefficient for stating Secondary Air and burnout degree selects 1.05~1.20.
In a kind of above-mentioned coal dust deeply staged combustion method, combustion reference temperature is 800 DEG C in the medium temperature burner
~950 DEG C.
A kind of system for realizing above-mentioned coal dust deeply staged combustion method, the system comprises preposition burner,
Medium temperature burner and separator；Burner, the preposition burner bottom setting are set at the top of the preposition burner
Syngas outlet；The medium temperature burner sets gradually Secondary Air entrance, intermediate fuel entrance and burnout degree and enters from top to bottom
Mouthful；The medium temperature burner lower part side opposite with the intermediate fuel entrance is provided with feedback outlet；The medium temperature burning
Bottom of device and top and it is respectively arranged with slag-drip opening and heat smoke outlet；The syngas outlet and the intermediate fuel entrance
Between be equipped with connection conveying device be connected；The heat smoke outlet is connected between the separator equipped with connecting pipe；It is described
Separator bottom is connect equipped with feed back pipe with the feedback outlet of the medium temperature burner.
As further improved technical solution, the burner is preferably turbulent burner.
As further improved technical solution, air distribution plate is arranged in medium temperature burner bottom, with the Secondary Air
Entrance communicates, and is used for the cloth wind of Secondary Air.
As further improved technical solution, the Secondary Air of medium temperature burner bottom enters medium temperature described in opening's edge and fires
Burn bottom of device it is circumferentially disposed several, and air-out direction of several the described Secondary Air entrances in the medium temperature burner
To tilt upward.
As further improved technical solution, medium temperature burner bottom is provided with efflux nozzle, the jet stream
Spout is connected to the Secondary Air entrance.Preferably, the efflux nozzle is arranged in the medium temperature burner bottom center, and
Efflux nozzle opening direction is upward.
As further improved technical solution, the medium temperature burner is additionally provided with desulfurizing agent entrance, the desulfurization
The setting of agent entrance is in the burnout degree inlet or is arranged on the feed back pipe.
The present invention has the following advantages and beneficial effects：Partial gasification is carried out to coal dust by preposition burner and obtains gas
Be combined to gas, then it made to burn in medium temperature burner, both to it is thin, in, thick three classes particle carried out gasification process, improve
The residence time of pulverized coal particle in the entire system, is conducive to catching fire for coal dust, improves the conversion ratio of coal dust, and change fire coal
Mode is the mode of coal dust burning and synthesis gas, the distribution in burner hearth interior flow field and temperature field is improved, to keep burning more thorough
Bottom, burn-off rate higher.
Description of the drawings
Fig. 1 is the coal dust deeply staged combustion system schematic of one of which embodiment according to the present invention.
In figure：The preposition burners of 1-；2- medium temperature burners；3- separators；4- air-introduced machines；5- dedusters；
6- chimneys；11- burners；12- syngas outlets；21- intermediate fuel entrances；22- feedback outlets；23- Secondary Air entrances；
24- desulfurizing agent entrances；25- burnout degree entrances；26- heat smokes export；27- slag-drip openings.
Specific implementation mode
The specific implementation mode and the course of work of the present invention are further described below in conjunction with the accompanying drawings.
The orientation such as upper, lower, left, right, front and rear in present specification term be position relationship based on ... shown in the drawings and
It establishes.Attached drawing is different, then corresponding position relationship is also possible to change therewith, therefore cannot be interpreted as with this to protecting model
The restriction enclosed.
As shown in Figure 1, a kind of coal dust deeply staged combustion system, including be sequentially connected preposition burner 1, medium temperature combustion
Burn device 2 and separator 3.Further include air-introduced machine 4, deduster 5 and chimney 6, air-introduced machine 4 can be connected to separator 3 and dedusting
Between device 5, it can also be connected between deduster 5 and chimney 6.It is required according to pollutant emission, the system can also include
Decontamination tower.Meanwhile residual heat using device can also be set as needed after separator 3.
Burner 11 is arranged in 1 top of preposition burner, and burner can select turbulent burner, coal dust and First air logical
The feed path for crossing burner enters in preposition burner 1, the ratio of control First air (air) so that in burner outlet
Imperfect combustion torch is formed, forms high-temperature region in burner outlet burning torch position, coal dust is ignited and is formed not exclusively
Burning or partial gasification.
Syngas outlet 12, the synthesis gas and uncombusted that coal dust imperfect combustion generates is arranged in 1 bottom of preposition burner
Preposition burner 1 is discharged from syngas outlet 12 in coal dust and unknown rational number, into medium temperature burner 2, as rear
The fuel of person.
Medium temperature burner 2 sets gradually Secondary Air entrance 23, intermediate fuel entrance 21 and burnout degree entrance from top to bottom
25,2 lower part of the medium temperature burner side opposite with intermediate fuel entrance 21 is additionally provided with feedback outlet 22.Medium temperature burner 2
Bottom and top and be respectively arranged with slag-drip opening 27 and heat smoke outlet 26.Between syngas outlet 12 and intermediate fuel entrance 21
It is connected equipped with connection conveying device, usually selects high temperature conveying device.The synthesis gas and uncombusted that coal dust imperfect combustion generates
Coal dust and unknown rational number are used as by connecting conveying device from intermediate fuel inlet 21 into the lower part of medium temperature burner 2
Fuel, and mixed with the bed material of 2 bottom of medium temperature burner.
As further improved technical solution, air distribution plate is arranged in 2 bottom of medium temperature burner, with 23 phase of Secondary Air entrance
It is logical, it is used for the cloth wind of Secondary Air so that Secondary Air can uniformly feed the bottom of medium temperature burner 2.Secondary wind wind speed is higher than
Pulverized Coal particle final Sedimentation Velocity, enables fuel particle suspension combustion.
As another further improved technical solution, the Secondary Air entrance 23 of 2 bottom of medium temperature burner is along medium temperature
2 bottom of burner it is circumferentially disposed several, and several air-out directions of Secondary Air entrance in medium temperature burner 2 be incline
Obliquely.Alternatively, 2 bottom of medium temperature burner is provided with efflux nozzle, efflux nozzle is connected to Secondary Air entrance 23.It is preferred that
, efflux nozzle is arranged in medium temperature burner bottom center, and efflux nozzle opening direction is upward.During both modes all make
It is in spouted bed state in warm burner.
Fuel is after the further burning with Secondary Air, during with combustion product gases uplink, from burnout degree entrance
25 burnout degrees entered make fuel after-flame as far as possible.The heat smoke that carry particulate matter exports what 26 entrance were connected from heat smoke
Separator 3, and bottom ash is discharged from slag-drip opening 27.It is 800 DEG C~950 DEG C that combustion reference temperature is kept in medium temperature burner 2, drop
The thermal NO x of low combustion process is generated；And the staged air distribution mode and circulating ash of Secondary Air and burnout degree enter burner hearth
Main burning area enhances combustion zone reducing atmosphere, to reduce fuel type NOx emission.
3 bottom of separator is connect equipped with feed back pipe with the feedback outlet 22 of medium temperature burner 2, the solid particle separated
2 lower part of medium temperature burner is transmitted back to from feedback outlet 22 as circulating ash and participates in Matter Transfer, and make uncombusted coal therein
Powder particles (usual particle diameter distribution is in 100~200um) or unburnt carbon, which are also sent back in medium temperature burner, realizes cycle
Burning, until after-flame, further increases burn-off rate.
To realize that desulfurization, medium temperature burner 2 are additionally provided with desulfurizing agent entrance 24, the setting of desulfurizing agent entrance 24 is being fired
To the greatest extent at wind entrance 25 or it is arranged on the feed back pipe that 3 bottom of separator is connected with medium temperature burner 2.
In conclusion a kind of coal dust deeply staged combustion method includes：
Coal dust of the grain diameter less than or equal to 200um and First air are passed through from the burner 11 at 1 top of preposition burner
Preposition burner 1 carries out imperfect combustion or gasification in preposition burner 1；
Coal dust conversion ratio in preposition burner 1 is：The fine powdered coal conversion ratio of grain diameter ＜ 30um reaches
80% or more, grain diameter is that the middle particle coal dust conversion ratio of 30~100um reaches 40% or more, grain diameter ＞ 100um's
Coarse granule coal dust conversion ratio reaches 10% or more；
The synthesis gas that imperfect combustion or partial gasification generate carries uncombusted coal dust and unburned coal dust enters
Medium temperature burner 2 burns under the action of the Secondary Air that 2 bottom of medium temperature burner is passed through；Combustion product gases carry unburned
Coal dust uplink to the greatest extent, burns under the action of the burnout degree being passed through from 2 middle and upper part of medium temperature burner；
Heat smoke after burning, which enters, carries out gas solid separation in separator 3, the flue gas separated enter later use or
Direct dedusting discharge；The solid particle separated is transmitted back to 2 lower part of medium temperature burner as circulating ash from feedback outlet 22 joins
With Matter Transfer, while uncombusted pulverized coal particle or unburnt carbon be also sent back in medium temperature burner realize cycle combustion
It burns, until after-flame.
A kind of above-mentioned coal dust deeply staged combustion method further includes：When the medium temperature burner 2 starts, in advance in medium temperature
2 bottom of burner be added particle size range 150~200um sand or coal ash particle as recycle stock.
In a kind of above-mentioned coal dust deeply staged combustion method, First air excess air coefficient selects 0.3~0.6；Secondary Air
1.05~1.20 are selected with the Overall excess air coefficient of burnout degree.
The present invention carries out imperfect combustion to coal dust by preposition burner or partial gasification obtains gasification synthesis gas, then
So that it is burnt in medium temperature burner, both to it is thin, in, thick three classes particle carried out gasification process, improve pulverized coal particle
Residence time in the entire system is conducive to catching fire for coal dust, improves the conversion ratio of coal dust.And pass through preposition burner
Partial gasification, change coal-fired mode be coal dust burning and synthesis gas mode, not only improve initial reaction temperature, but also improve stove
The distribution of thorax interior flow field and temperature field, to keep burning more thorough, burn-off rate higher.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of coal dust deeply staged combustion method, it is characterised in that：The method includes：
The coal dust and First air for meeting granularity requirements are passed through preposition burner (1) from top, in the preposition burner (1)
Middle progress imperfect combustion or partial gasification；
The combustion gas that imperfect combustion or partial gasification generate carries uncombusted coal dust and unburned coal dust enters medium temperature
Burner (2) is in suspension combustion under the action of the Secondary Air that medium temperature burner (2) bottom is passed through；Combustion product gases
Uncombusted coal dust uplink is carry, is burnt under the action of the burnout degree being passed through from medium temperature burner (2) middle and upper part；
Heat smoke after burning, which enters, carries out gas solid separation in separator (3), the flue gas separated enters later use or straight
Connect dedusting discharge；The solid particle separated is transmitted back to medium temperature burner (2) lower part as circulating ash and participates in Matter Transfer,
Pulverized coal particle uncombusted simultaneously, which is also sent back in medium temperature burner, realizes circulating combustion, until after-flame.
2. a kind of coal dust deeply staged combustion method according to claim 1, it is characterised in that：The pulverized coal particle grain size
Less than or equal to 200um.
3. a kind of coal dust deeply staged combustion method according to claim 1 or 2, it is characterised in that：The coal dust is preceding
Setting conversion ratio in burner (1) is：The fine powdered coal conversion ratio of grain diameter ＜ 30um is more than 80%, grain diameter 30
The middle particle coal dust conversion ratio of~100um is more than 40%, and the coarse granule coal dust conversion ratio of grain diameter ＞ 100um is more than 10%.
4. a kind of coal dust deeply staged combustion method according to claim 1, it is characterised in that：The method further includes：
When the medium temperature burner (2) starts, in advance medium temperature burner (2) bottom be added particle size range 150~
The sand or coal ash particle of 200um is as recycle stock.
5. a kind of coal dust deeply staged combustion method according to claim 1, it is characterised in that：The First air is excessive empty
Gas coefficient selects 0.3~0.6；The Overall excess air coefficient of the Secondary Air and burnout degree selects 1.05~1.20.
6. a kind of coal dust deeply staged combustion method according to claim 1, it is characterised in that：The medium temperature burner
(2) interior combustion reference temperature is 800 DEG C~950 DEG C.
7. a kind of system for realizing coal dust deeply staged combustion method as described in claim 1, it is characterised in that：It is described
System includes preposition burner (1), medium temperature burner (2) and separator (3)；It is set at the top of the preposition burner (1)
Set burner (11), preposition burner (1) the bottom setting syngas outlet (12)；The medium temperature burner (2) from
Under to above setting gradually Secondary Air entrance (23), intermediate fuel entrance (21) and burnout degree entrance (25)；The medium temperature burning dress
It sets (2) lower part and the opposite side of the intermediate fuel entrance (21) is provided with feedback outlet (22)；The medium temperature burner (2)
It bottom and top and is respectively arranged with slag-drip opening (27) and heat smoke and exports (26)；The syngas outlet (12) and the centre
Connection conveying device is equipped between fuel inlet (21) to be connected；It is set between the heat smoke outlet (26) and the separator (3)
There is connecting pipe to be connected；Separator (3) bottom is equipped with feed back pipe and the feedback outlet (22) of the medium temperature burner (2) connects
It connects.
8. coal dust deeply staged combustion system according to claim 7, it is characterised in that：The medium temperature burner (2)
Air distribution plate is arranged in bottom, is communicated with the Secondary Air entrance (23), is used for the cloth wind of Secondary Air.
9. wanting the coal dust deeply staged combustion system described in 7 according to right, it is characterised in that：Medium temperature burner (2) bottom
The Secondary Air entrance (23) in portion along medium temperature burner (2) bottom it is circumferentially disposed several, and several described Secondary Airs
Air-out direction of the entrance in the medium temperature burner (2) is to tilt upward.
10. coal dust deeply staged combustion system according to claim 7, it is characterised in that：The medium temperature burner (2)
Bottom is provided with efflux nozzle, and the efflux nozzle is connected to the Secondary Air entrance (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711406682.6A CN108278595A (en) | 2017-12-22 | 2017-12-22 | A kind of coal dust deeply staged combustion method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711406682.6A CN108278595A (en) | 2017-12-22 | 2017-12-22 | A kind of coal dust deeply staged combustion method and system |
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| CN108278595A true CN108278595A (en) | 2018-07-13 |
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| CN201711406682.6A Pending CN108278595A (en) | 2017-12-22 | 2017-12-22 | A kind of coal dust deeply staged combustion method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117510106A (en) * | 2023-12-29 | 2024-02-06 | 苏州仕净科技股份有限公司 | Steel slag carbon capturing recycling treatment device and treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082164A (en) * | 1993-06-30 | 1994-02-16 | 清华大学 | Burner for heating powdered coal on fluidized bed by precombustion |
| US20140090298A1 (en) * | 2011-06-10 | 2014-04-03 | Bharat Petroleum Corporation Limited | Process for co-gasification of two or more carbonaceous feedstocks and apparatus thereof |
| CN203613150U (en) * | 2013-12-13 | 2014-05-28 | 北京蓝天利源科技有限公司 | Feed coal front-loading pyrolysis device used for large-scale pulverized coal furnace |
| CN205897120U (en) * | 2016-08-10 | 2017-01-18 | 卢长柱 | Leading low -nitrogen oxide combustion device of circulating fluidized bed boiler |
-
2017
- 2017-12-22 CN CN201711406682.6A patent/CN108278595A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082164A (en) * | 1993-06-30 | 1994-02-16 | 清华大学 | Burner for heating powdered coal on fluidized bed by precombustion |
| US20140090298A1 (en) * | 2011-06-10 | 2014-04-03 | Bharat Petroleum Corporation Limited | Process for co-gasification of two or more carbonaceous feedstocks and apparatus thereof |
| CN203613150U (en) * | 2013-12-13 | 2014-05-28 | 北京蓝天利源科技有限公司 | Feed coal front-loading pyrolysis device used for large-scale pulverized coal furnace |
| CN205897120U (en) * | 2016-08-10 | 2017-01-18 | 卢长柱 | Leading low -nitrogen oxide combustion device of circulating fluidized bed boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117510106A (en) * | 2023-12-29 | 2024-02-06 | 苏州仕净科技股份有限公司 | Steel slag carbon capturing recycling treatment device and treatment method |
| CN117510106B (en) * | 2023-12-29 | 2024-04-12 | 苏州仕净科技股份有限公司 | Steel slag carbon capturing recycling treatment device |
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Application publication date: 20180713 |