CN208365523U - A kind of water-coal-slurry burning device of circulating fluidized bed - Google Patents
A kind of water-coal-slurry burning device of circulating fluidized bed Download PDFInfo
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- CN208365523U CN208365523U CN201820325463.9U CN201820325463U CN208365523U CN 208365523 U CN208365523 U CN 208365523U CN 201820325463 U CN201820325463 U CN 201820325463U CN 208365523 U CN208365523 U CN 208365523U
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- 239000003250 coal slurry Substances 0.000 title claims abstract description 69
- 238000002485 combustion reaction Methods 0.000 claims abstract description 75
- 239000002002 slurry Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 241001149930 Protura <class> Species 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
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- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 32
- 239000011575 calcium Substances 0.000 abstract description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052791 calcium Inorganic materials 0.000 abstract description 14
- 239000003795 chemical substances by application Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 11
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 17
- 239000002956 ash Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 12
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- 238000000034 method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000003134 recirculating effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
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- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a kind of water-coal-slurry burning device of circulating fluidized bed.Water-coal-slurry component includes 40%~30% water, 60~70% coal dusts and calcium-based desulfurizing agent and suspension stabilizer, and the volume mean diameter of coal dust and calcium-based desulfurizing agent is 20~25 microns, and coal dust the largest particles partial size is less than 120 microns.Burner includes combustion chamber, separator etc., and combustion chamber lower front part is provided with 15~45 ° of inclined water-coal-slurry fluidic devices.Fluidising air velocity is 4~6m/s in combustion chamber, and ignition temperature is 800~900 DEG C；Total pressure head of the combustion chamber from air distribution plate to furnace roof is 4~7kPa, and combustion chamber top unit height pressure difference is 30-100Pa/ meters.Water-coal-slurry fluidic device include into slurry supervisor and be arranged in into slurry supervisor outlet end several into slurry jet pipe.The utility model has the advantages that cool water mixture burning is high-efficient, burn-off rate is high, primary pollutant concentration of emission is low etc..
Description
Technical field
The utility model relates to a kind of water-coal-slurry burning device of circulating fluidized bed, belong to clean coal burning technical field, special
It is not Combustion technology of circulating fluidized range.
Background technique
Recirculating fluidized bed coal combustion is a kind of process of fluidization technology realization medium temperature coal combustion using chemical field.Its
Advantage is to improve solid fuel ignition reaction speed using the high mass-and heat-transfer characteristic of Dual-Phrase Distribution of Gas olid.Therefore available width
Wide fuel tolerance, medium temperature is burnt, and discharged nitrous oxides are small, and addition lime stone can be realized in furnace removes in burning.
Circulating fluidized bed combustion coal technology is generated from the last century 70's.The first in the world platform circulating fluidized bed boiler (Germany
Duisburg) once used full fast bed fluidised form to design.Use the coal that partial size is 300 microns.Design fluidising air velocity
Up to 9 meter per seconds.Due to fluidising air velocity height, the heated vertical face for constituting combustion chamber needs all to cover upper material tight to prevent
Reface damage.External fluid-bed heat exchanger under separator of the absorption of heat by outer circulation loop is arranged in is completed.The technology
It is difficult in maintenance since external heat exchanger bed structure is complicated.In addition the water wall surface of combustion chamber surrounding does not make full use of, institute
It is abandoned quickly with the technology.
After, mainstream circulation fluidized-bed combustion boiler technology designs fluidising air velocity in 5~6 meter per second ranges in the world,
To solve high fluidising air velocity bring combustion chamber vertical water wall wear problem.The granularity for using coal is also amplified to 0~20
Millimeter (to high volatile lignite or bituminous coal) and 0~8 millimeter (to low volatile anthracite or high ash content spoil), therefore after burning
Ash content include that certain proportion is greater than 1 millimeter of ash particle.This is partially larger than 1 millimeter of ash particle in the gas fume of combustion chamber of design
It can not reach fast bed fluidized state condition under the conditions of the rate of climb, but accumulate and constitute bubbling bed shape in combustion chamber lower part
State.Ash particle only less than 200 microns sends combustion chamber circulation back to by cyclone separator separation and is accumulated to sufficient amount, so as to
Fast bed state is formed on combustion chamber top.And it is to complete coal combustion and denitration in furnace, de- that combustion chamber, which forms fast bed state,
The necessary condition of sulphur.When the coarse granule bubbling bed of lower part is substantially for longer stop needed for solving the after-flame of large coal particles
Between.Improved Combustion technology of circulating fluidized is rapidly developed from after the 1980's, is used widely.Although reducing fluidising air velocity
The abrasion of Shandong surprise type circulating fluidized bed boiler vertical water wall is avoided, but lower part waterwall tube cracking still has.Reason exists
In the ash content for using wider granularity fuel and unavoidably being formed bulky grain.These bulky grain ash contents are raised on combustion chamber emulsion zone surface
Analysis is fallen after rise, the water-cooling wall of brinelling combustion chamber and lower part abrasionproof castable intersection.Up to now circulating fluidized bed boiler
The main cause that availability is consistently lower than pulverized coal firing boiler is this.
Coal water slurry fuel is a kind of low nitrogen burning coal derived fuel proposed the last century 80's.Coal water slurry fuel is to use
Bituminous coal of the ash content of coal lower than 10% is mixed with water, and coal is worn into the fine powder less than 20 microns by wet type coal pulverizer, is added
The slurries that a small amount of suspending agent is formed generally require solid concentration in slurries to be greater than 55%.Under slurries energy long-time static conditions not
Meeting delaminating deposition, in favor of pipeline transportation and storage.Water-coal-slurry passes through the burner specially designed with atomised form and enters burning
Room, water-coal-slurry drop rapid evaporation, pulverized coal particle kindling open combustion, form the flame for being similar to pulverized coal friring under high temperature environment.
Chamber temperature is controlled at 1000 degree or more.The advantages of water coal slurry combusting technology, is in combustion due to there is moisture heat absorption
The process of evaporation, flame are spun out, and high-temperature area point is less, reduce the generation of nitrogen oxides.In addition, water-coal-slurry is defeated using pipeline
It send, flow container storage.Boiler room arrangement is simple, without dust pollution.China once uses cool water mixture burning in the eighties in last century
Technology solves the coal-fired transformation of oil burning boiler.But the technology only can be reduced being thermally generated for nitrogen oxides, to organic nitrogen in coal to
Nitrogen oxides converts no inhibiting effect.It is limited to reduce the ability that total nitrogen oxide generates.Volatile matter content of the water-coal-slurry to coal
There is strict demand with ash content, otherwise it cannot be guaranteed that efficiency of combustion and Load Regulation ability.And cool water mixture burning can not solve
Desulfuration in furnace problem, it is still desirable to which flue gas desulfurization device is set in the flue gas flow path of boiler export.So nearly 20 years water-coal-slurry
Combustion technology is gradually backed out market.
Utility model content
The utility model proposes a kind of water-coal-slurry formulated component and for the water-coal-slurry to slurry and the full fast bed of burning
The burning device of circulating fluidized bed of fluidized state.
The utility model is achieved through the following technical solutions:
A kind of burning device of circulating fluidized bed of full fast bed fluidized state, be used for water-coal-slurry to slurry and burning, institute
Stating device includes combustion chamber, separator, loopback of material device and tail portion by heating flue, and the separator is arranged in the combustion chamber
Side, entrance is connected with the combustion chamber upper outlet；The separator exhanst gas outlet is with the tail portion by heating flue phase
Even；The loopback of material device setting is connected below the separator, and with the combustion chamber lower part；The combustion chamber lower part
For tapering type combustion zone from top to bottom, and the tapering type combustion zone inner wall masonry has refractory material；The combustion chamber top
For prismatic water wall structure；Described device further includes the water-coal-slurry fluidic device that the combustion chamber lower front part is arranged in；
For the water-coal-slurry fluidic device in arrangement is tilted down, the angle α with horizontal plane is 15~45 °；The bottom of combustion chamber sets cloth
Wind apparatus makes fluidising air velocity in the combustion chamber be 4~6m/s by the air that the air-distribution device is fed.
In above-mentioned technical proposal, entrance of the water-coal-slurry fluidic device in the combustion chamber is located on the air-distribution device
1~3m of side.
In above-mentioned technical proposal, the water-coal-slurry fluidic device includes into slurry supervisor and being arranged in into slurry supervisor outlet end
Several are into slurry jet pipe: the water-coal-slurry fluidic device is 5~30mm into jet size is starched.
In above-mentioned technical proposal, the water-coal-slurry fluidic device includes into slurry supervisor and being arranged in into slurry supervisor outlet end
Choker bar；It is described to be responsible for outlet end in diffusion taper into slurry；The choker bar is tapered, and conehead is responsible for against into slurry；It is described
Choker bar can be moved forward and backward into slurry direction, so that the choker bar and described be responsible between the inner wall of outlet end into slurry are formed
The slurry intake channel of 5~30mm.
As further improved technical solution, be provided on the choker bar of the water-coal-slurry fluidic device several every
Disconnected, several described partitions are circularly and evenly distributed with the center line of the choker bar on choker bar surface.
In above-mentioned technical proposal, water-coal-slurry is injected into burning in a manner of high-pressure jet in the water-coal-slurry fluidic device
Room, and effluxvelocity is 20~40m/s.
In above-mentioned technical proposal, the combustion chambers burn temperature of described device is 800~900 DEG C；The combustion chamber is from cloth wind
The total pressure head of plate to furnace roof is 4~7kPa, and combustion chamber top unit height pressure difference is 30-100Pa/ meters.
In above-mentioned technical proposal, the water-coal-slurry component includes 40%~30% water, 60~70% coal dusts and calcium-based desulfurization
Agent and suspension stabilizer；The calcium-based desulfurization agent content is by 1.6~3.0 that calcium content Ca is the coal dust sulfur content S mole
It calculates again.
In above-mentioned technical proposal, the volume mean diameter of the coal dust and calcium-based desulfurizing agent is 20~25 microns, and coal
Powder the largest particles partial size is less than 120 microns.
In above-mentioned technical proposal, the calcium-based desulfurizing agent selects lime stone.
The utility model compared with prior art, has the following advantages and outstanding effects: fluidizing shape using full fast bed
State, so that the efficiency of combustion of water-coal-slurry, burn-off rate are very high, and medium temperature operation is so that combustion process primary pollutant concentration of emission
It is low.
Detailed description of the invention
Fig. 1 is the burning device of circulating fluidized bed schematic diagram of full fast bed fluidized state involved in the utility model.
Fig. 2 is water-coal-slurry fluidic device difference example structure schematic diagram involved in the utility model.
Fig. 3 is burning device of circulating fluidized bed fluidized state flow pattern schematic diagram involved in the utility model.
In figure: the combustion chamber 1-；2- separator；3- loopback of material device；The tail portion 4- is by heating flue；5- water-coal-slurry is penetrated
Flow device；51- is responsible for into slurry；52- into slurry jet pipe；53- choker bar；54- partition；6- air-distribution device.
Specific embodiment
Specific embodiment of the present utility model and the course of work are further described with reference to the accompanying drawing.
The positional terms such as the upper, lower, left, right, front and rear in present specification be positional relationship based on the figure and
It establishes.Attached drawing is different, then corresponding positional relationship is also possible to change therewith, therefore cannot be interpreted as with this to protection model
The restriction enclosed.
Water-coal-slurry described in the utility model is the Novel clean burning water-coal-slurry developed on the basis of traditional coal-water-slurry.
Being increased in new water-coal-slurry ingredient according to calcium sulfur ratio is 1.6~3 lime stones calculated.The granularity of coal and lime stone is 0~120
Micron, additional suspension agent guarantee that slurries short-term will not settle.The coal/lime stone mixing slurry is to pit ash content and volatile matter
Content does not require.Content of ashes only influences the calorific value of water-coal-slurry, will not have an impact to combustion process.
A kind of water-coal-slurry, component include 40%~30% water, 60~70% coal dusts and calcium-based desulfurizing agent and suspension stabilizer.
Suspension stabilizer includes cellulose, high molecular surfactant, polyacrylate and solubility salt, and additive amount is not equal to total coal
The 1% of powder amount, so that water-coal-slurry one side springy texture is not agglomerated, it is viscous when viscosity is small and static when another aspect water-coal-slurry flows
Degree is big.Wherein, calcium-based desulfurization agent content is by 1.6~3.0 times of calculating that calcium content Ca is coal dust sulfur content S mole.That is calcium base
Calcium content and coal dust sulfur content molar ratio are 1.6~3.0 in desulfurizing agent.Calcium-based desulfurizing agent selects lime stone.
The volume mean diameter of coal dust and calcium-based desulfurizing agent is 20~25 microns, and coal dust the largest particles partial size is less than
120 microns.
As shown in Figure 1, a kind of burning device of circulating fluidized bed of full fast bed fluidized state, is used for above-mentioned water-coal-slurry
To slurry and burning, described device includes combustion chamber 1, separator 2, loopback of material device 3 and tail portion by heating flue 4.Separator 2 is set
The side in combustion chamber 1 is set, 2 entrance of separator is connected with 1 upper outlet of combustion chamber；2 exhanst gas outlet of separator and tail portion are heated
Flue 4 is connected.The setting of loopback of material device 3 is connected below separator 2, and with 1 lower part of combustion chamber.1 lower part of combustion chamber be from
The tapering type combustion zone of top to bottm, and tapering type combustion zone inner wall masonry has refractory material；1 top of combustion chamber is prismatic water
Cold wall structure, preferably film water cold wall structure.
1 bottom of combustion chamber is equipped with air-distribution device 6, makes fluidising air velocity in combustion chamber 1 by the air that air-distribution device 6 is fed
For 4~6m/s.The fluidizing velocity not only avoids the abrasion of the vertical membrane wall in combustion chamber, while also substantially eliminating water-cooling wall and casting
Expect the abrasion of intersection.And coal and the range (0~120 micron) of limestone granularity distribution are far below in the corresponding water-coal-slurry used
300 microns of coal particles that Shandong surprise circulating fluidized bed boiler uses, can guarantee the formation of full fast bed fluidised form.
1 lower front part of combustion chamber is provided with water-coal-slurry fluidic device 5, the feed for water-coal-slurry.Water-coal-slurry fluidic device 5
Entrance in the combustion chamber 1 is located at 1~3m above air-distribution device 6.Water-coal-slurry fluidic device 5 is in arrangement is tilted down, with water
The angle α of plane is 15~45 °.
At least there are two types of embodiments as shown in Figure 2 for the setting of water-coal-slurry fluidic device 5.The first embodiment such as Fig. 2 a
It is shown, the water-coal-slurry fluidic device 5 include into slurry supervisor 51 and be arranged in into slurry supervisor 51 outlet ends several into slurry spray
Pipe 52: the water-coal-slurry fluidic device 5 is 5~30mm into 52 diameter of jet pipe is starched.
Second of embodiment is as shown in Figure 2 b, the water-coal-slurry fluidic device 5 include into slurry supervisor 51 and setting into
The choker bar 53 of 51 outlet ends of slurry supervisor；It is described to be responsible for 51 outlet ends in diffusion taper into slurry；The choker bar 53 is tapered,
Conehead is responsible for 51 against into slurry；The choker bar 53 can into slurry direction be moved forward and backward so that the choker bar 53 with it is described
Into the slurry intake channel for forming 5~30mm between slurry 51 outlet end inner walls of supervisor.
As the improved technology scheme to above-mentioned second of embodiment, as shown in Figure 2 c, if being provided on choker bar 53
Dry partition 54, partition 54 are arranged along into slurry direction；Several described partitions 54 are with the center line of the choker bar 53 in circle
It is evenly distributed on 53 surface of choker bar week.
Water-coal-slurry is injected into combustion chamber in a manner of high-pressure jet in the water-coal-slurry fluidic device, and effluxvelocity is 20
~40m/s.
The chamber temperature of described device is 800~900 DEG C；Total pressure head of the combustion chamber 1 from air distribution plate to furnace roof is 4
Between~7KPa, 1 top of combustion chamber (usually more than overfiren air port) unit height pressure difference is 30-100Pa/ meters.
Water-coal-slurry is injected into combustion chamber in the fluid column shape of 5~30mm in a manner of high-pressure jet in water-coal-slurry fluidic device 5
1, and effluxvelocity is 20~40m/s.The atomization that the injection method of water-coal-slurry is different from traditional coal-water-slurry feed (high-speed jet,
Form the drop of micro scale) method, be also different from used at present when recirculating fluidized bed uses mud coal to be pumped into method (low
Speed is pumped into, and forms the agglomerate for being greater than Centimeter Level).
Its internal combustion chamber of full fast bed fluidised form circulating fluidized bed boiler described in the utility model is from bottom until burning
Ceiling portion is the fast bed that the particle by can all carry secretly, partial size less than 120 microns is constituted.Its fluidized material concentration is bent
1~15kg/m of the line within the scope of the area A as shown in Figure 33Bed material concentration curve.
Due to there are a large amount of hot ash particles in the recirculating fluidized bed of this water-coal-slurry of burning, the slurries fed can be heated to
Burning point simultaneously maintains burning to complete, therefore does not require volatile matter content, and the coal for preparing this water-coal-slurry includes anthracite, poor
Coal, bituminous coal, coal slime, petroleum coke etc..Slurries enter full fast bed recirculating fluidized bed medium temperature operation described in the utility model (800~
900 DEG C) burning, being thermally generated for nitrogen oxides can be inhibited, can also reduce conversion of the fuel bound nitrogen to nitrogen oxides.It is added simultaneously
Lime stone can realize desulfuration in furnace under medium temperature burning condition.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of water-coal-slurry burning device of circulating fluidized bed, described device includes combustion chamber (1), separator (2), loopback of material dress
(3) and tail portion are set by heating flue (4), combustion chamber (1) lower part is tapering type combustion zone from top to bottom, and described tapering type
Inner wall masonry in combustion zone has refractory material；Combustion chamber (1) top is prismatic water wall structure；It is characterized by: institute
Stating device further includes water-coal-slurry fluidic device (5) of the setting in the combustion chamber (1) lower front part；The water-coal-slurry fluidic device
(5) in arrangement is tilted down, the angle α with horizontal plane is 15~45 °；Combustion chamber (1) bottom sets air-distribution device (6), leads to
The air for crossing the air-distribution device (6) infeed makes the combustion chamber (1) interior fluidising air velocity be 4~6m/s.
2. a kind of water-coal-slurry burning device of circulating fluidized bed according to claim 1, it is characterised in that: the water-coal-slurry is penetrated
It flows the entrance of device (5) in the combustion chamber (1) and is located at 1~3m above the air-distribution device (6).
3. a kind of water-coal-slurry burning device of circulating fluidized bed according to claim 1, it is characterised in that: the water-coal-slurry is penetrated
Stream device (5) include into slurry supervisor (51) and setting into slurry supervisor (51) outlet end several into starch jet pipe (52): it is described
Water-coal-slurry fluidic device (5) is 5~30mm into jet pipe (52) diameter is starched.
4. a kind of water-coal-slurry burning device of circulating fluidized bed according to claim 1, it is characterised in that: the water-coal-slurry is penetrated
Stream device (5) includes into slurry supervisor (51) and setting in the choker bar (53) into slurry supervisor (51) outlet end；It is described to be responsible for into slurry
(51) outlet end is in diffusion taper；The choker bar (53) is tapered, and conehead is responsible for (51) against into slurry；The choker bar
(53) can into slurry direction be moved forward and backward so that the choker bar (53) and it is described into slurry supervisor (51) outlet end inner wall it
Between formed 5~30mm slurry intake channel.
5. a kind of water-coal-slurry burning device of circulating fluidized bed according to claim 4, it is characterised in that: the water-coal-slurry is penetrated
It flows and is provided with several partitions (54) on the choker bar (53) of device (5), several described partitions (54) are with the choker bar
(53) center line is circularly and evenly distributed on choker bar (53) surface.
6. a kind of water-coal-slurry burning device of circulating fluidized bed according to any one of claims 1 to 4, it is characterised in that: institute
Water-coal-slurry fluidic device (5) interior water-coal-slurry is stated to be injected into a manner of high-pressure jet combustion chamber (1), and effluxvelocity be 20~
40m/s。
7. a kind of water-coal-slurry burning device of circulating fluidized bed according to claim 1, it is characterised in that: the combustion of described device
Burning room (1) temperature is 800~900 DEG C；Total pressure head of the combustion chamber (1) from air distribution plate to furnace roof is 4~7kPa.
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| CN201820325463.9U CN208365523U (en) | 2018-03-09 | 2018-03-09 | A kind of water-coal-slurry burning device of circulating fluidized bed |
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| CN201820325463.9U CN208365523U (en) | 2018-03-09 | 2018-03-09 | A kind of water-coal-slurry burning device of circulating fluidized bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561880A (en) * | 2018-03-09 | 2018-09-21 | 清华大学 | A kind of burning device of circulating fluidized bed of water-coal-slurry and its full fast bed fluidized state |
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2018
- 2018-03-09 CN CN201820325463.9U patent/CN208365523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561880A (en) * | 2018-03-09 | 2018-09-21 | 清华大学 | A kind of burning device of circulating fluidized bed of water-coal-slurry and its full fast bed fluidized state |
| CN108561880B (en) * | 2018-03-09 | 2024-04-23 | 清华大学 | Coal water slurry and circulating fluidized bed combustion device in full-fast bed fluidization state thereof |
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