CN109810731A - A kind of water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation - Google Patents
A kind of water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation Download PDFInfo
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- CN109810731A CN109810731A CN201910157438.3A CN201910157438A CN109810731A CN 109810731 A CN109810731 A CN 109810731A CN 201910157438 A CN201910157438 A CN 201910157438A CN 109810731 A CN109810731 A CN 109810731A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention discloses a kind of water-coal-slurry water cooled wall gasification furnaces of efficient long-period stable operation, including integrated burner, tandem water-evaporating furnace, the radiation waste pot with soot blower, membrane type chiller of feeding intake of lighting a fire；The igniting integrated burner that feeds intake at least is disposed with from outside to inside: outer epoxy tube, coal slurry pipe and central oxygen pipe, igniting feed intake integrated burner nozzle at be in contraction-like；It is outer epoxy channel between outer epoxy tube and coal slurry pipe, it is the outer epoxy channel of air film between the outer epoxy tube of air film and coal slurry pipe, it is coal slurry channel between coal slurry pipe and central oxygen pipe, is center oxygen and blast tube in central oxygen pipe, the axis of central oxygen and blast tube is equipped with spark lever；It is passed through central oxygen and combustion gas simultaneously in central oxygen pipe, or a coaxial fuel gas conduit for being used to be passed through combustion gas is set again in central oxygen pipe.Gasification reaction efficiency of carbon con version of the present invention is high, and distribution of reaction products is good, and gasification furnace efficiency is horizontal high, can greatly improve gasification furnace continuous operating time, increase economic efficiency.
Description
Technical field
The present invention relates to coal water slurry gasification furnace apparatus, especially a kind of coal-water-slurry water-cooled wall of efficient long-period stable operation
Gasification furnace.
Background technique
The existing water-coal-slurry water cooled wall gasification furnace parallel-adder settle-out time with waste-heat recovery device is limited to gasification furnace inner core
Component service life, such as: water-coal-slurry atomization process burner average life needed to stop at 90 ~ 120 days every 90 ~ 120 days
Overhaul Replacement procedure burner；In addition heat recovery apparatus --- flying dust adhesiveness is strong in radiant boiler, radiation waste pot after a period of time
Heat recovery efficiency decline, needs the purging that periodically stops；Gasification operation process chiller fluctuation of service also frequently results in gas simultaneously
Change the parking of furnace temporary emergency.The presence of these problems causes the average annual runing time of gasification installation to cannot get effective guarantee, cause through
Help lost revenue.
Summary of the invention
The present invention has developed a kind of coal-water-slurry water-cooled wall of efficient long-period stable operation for the problem present on
Gasification furnace, it is intended to improve the water-coal-slurry water cooled wall gasification furnace parallel-adder settle-out time with heat recovery apparatus to a certain extent, reduce gas
The parking maintenance frequency is set in makeup, improves the average annual hours of operation of device.
Technical scheme is as follows:
A kind of water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation, it is characterised in that: including the integration that feeds intake of lighting a fire
Burner, tandem water-evaporating furnace, the radiation waste pot with soot blower, membrane type chiller；The integrated burner peace that feeds intake of lighting a fire
On the large flange one at the top of gasification furnace body, the tandem water-evaporating furnace, radiation waste pot and membrane type with soot blower
Chiller is successively installed on from top to bottom in gasification furnace body；The igniting integrated burner that feeds intake at least successively is set from outside to inside
Be equipped with: outer epoxy tube, coal slurry pipe and central oxygen pipe, igniting feed intake integrated burner nozzle in contraction-like；Outer epoxy tube and
It is outer epoxy channel between coal slurry pipe, is the outer epoxy channel of air film, coal slurry pipe and center between the outer epoxy tube of air film and coal slurry pipe
It is coal slurry channel between oxygen pipe, is center oxygen and blast tube in central oxygen pipe, is arranged on the axis of central oxygen and blast tube
There is spark lever；It is passed through central oxygen and combustion gas simultaneously in the central oxygen pipe, or a coaxial use is set again in central oxygen pipe
In the fuel gas conduit for being passed through combustion gas.The igniting integrated burner that feeds intake integrates baker burner and process burner, avoids feeding intake
The operation of preceding replacement burner, baker fuel gas is by central oxygen/fuel gas conduit and come can be by water-cooling wall gas to the combustion-supporting gas of outer epoxy tube
Change fire box temperature and is promoted to 800 DEG C or more rapidly.
The outer epoxy tube of the air film is cannula-like, and coal slurry pipe and outer epoxy tube are separated old two channels completely, is located at outer
The channel of layer is to be atomized outer epoxy channel, is epoxy channel outside air film positioned at the channel of internal layer.
Alternatively, the outer epoxy tube of the air film is contraction-like half casing, it is between outer epoxy tube and air film outer ring oxygen pipe
It is atomized outer epoxy channel, is the outer epoxy channel of air film between the outer epoxy tube of air film and coal slurry pipe.
Gas in outer epoxy tube is divided into two-way by the outer epoxy tube of the air film, is used all the way as the outer ethylene gas of atomization
In atomization combustion gas and water-coal-slurry, another way is used for the peripheral shape in coal slurry and the raw material premix area of central oxygen as the outer epoxy of air film
At air film protection zone.
The axis of logistics and central oxygen and blast tube in the coal slurry channel forms angle a, is atomized outer epoxy channel
In air-flow and the axis of central oxygen and blast tube form angle b, the air-flow and central oxygen and combustion gas in air film oxygen channel are logical
The axis in road forms angle c, wherein a > b > c.Central oxygen and coal slurry spray burner in burner head formation three-phase object in this way
The pre-mix zone of stream, the outer epoxy of air film spray gaseous stream and form stable air film protective layer outside pre-mix zone.
The outer epoxy of the air film and be atomized the shared channel of outer epoxy, burner head add annular gas reticle or
Person realizes that wherein the outer epoxy channel sized of air film is by epoxy outside air film and pre-mix zone gas-liquid by punching on the tube wall of coal slurry pipe
Gu three-phase logistics ratio of momentum size is arranged, it is preferred so that stable air film protection zone can be formed outside pre-mix zone, air film protects the head of district
Degree is greater than the outer epoxy of air film and is exposed to premix section length l.
The igniting feed intake integrated burner feed intake operational process central oxygen account for gasification total oxygen demand 0 ~ 20%, outer epoxy
Account for the 80 ~ 100% of gasification total oxygen demand.
Water-cooling wall is arranged to two-stage tandem structure, gasified raw material according to gasification reaction feature by the tandem water-evaporating furnace
Into gasification hearth, the combustion reaction based on exothermic reaction mainly occurs in top the first tandem area, along with water evaporation
With raw material conducting self-heating, the reduction reaction based on the endothermic reaction, the first tandem area reaction volume mainly occur for the second tandem area
Less than the second tandem area, the first tandem area reaction mass can quickly enter the second tandem area, reduce high temperature reflux gas to first
The influence of tandem area reaction, protection furnace roof water-cooling wall and process burner head, while high temperature logistics quickly enters second reaction zone
Be conducive to second reaction zone endothermic reaction progress.The gasification furnace gasification reaction of the embodiment of the present invention, can adjust on a molecular scale
Whole gasification reaction carries out, and improves gasification reaction efficiency of carbon con version and improves the distribution of gasification reaction product.
The water-cooling wall of the tandem water wall structure is arranged to fin panel casing perhaps coiled water-cooling wall or collet
Formula water-cooling wall or any number of water-cooling wall combination.
The first tandem area diameter D1 is less than the second tandem area diameter D2, and the first tandem area height h1 is less than the second string
Grade area height h2.
The radiation waste pot with soot blower is located under tandem water-cooling wall, the radiation waste pot packet with soot blower
The water-cooling screen for including annular water-cooling wall down-comer and being arranged in annular water-cooling wall is provided with soot blower on water-cooling screen and mitigates fine ash
The adherency of slag keeps the higher heat recovery efficiency of radiation waste pot and parallel-adder settle-out time.
The annular water-cooling wall down-comer is arranged to fin panel casing perhaps coiled water-cooling wall or jacket type water cooling
Wall；It is high-temperature synthesis gas downward flow channel in annular water-cooling wall down-comer, water-cooling screen is radially equal along annular water-cooling wall down-comer
Even arrangement N group, N > 6.
The water-cooling screen is alternatively arranged and is formed by shell and tube water cooling tube and purging tubule, the diameter D of shell and tube water cooling tube with
There are following relationships: D=2.5d by the diameter d of purging tubule, and it is small to be provided with symmetrical four column purging along the vertical direction of purging tubule
The blowing angle in hole, the purging tubule is β, the angular range of β are as follows: 70 ° < a < 110 °, purging aperture vertical spacing 0.1 ~
Between 0.5m.
The membrane type chiller is located under the radiation waste pot with soot blower, is fixed by bolts in gasification furnace shock chamber
In interior fixed plate, shock chamber is connect by large flange two with gasification furnace top, and chilled water is full of by multiple Quench water inlets
The chiller water tank of inverted cone-shaped structure, Quench water out are located at the circular passage lower end of back taper end.The multiple chilled water into
Opening's edge chiller inverted cone-shaped cabinet is evenly arranged on tapered outer wall.
The chilled water export structure includes circular passage, is provided with chilled water spiral board, circular passage in circular passage
There is the fixed ring flat-plate in end, the chilled water Outlet cover plate with semicircle or semiellipse type structure apopore is fixed on fixation by stove bolt
On ring flat-plate.By the setting of circular passage, Quench water turbulence can be enhanced, Quench water out be arranged to semicircle easy to process or
Semiellipse type structure enhances bulky grain lime-ash handling capacity.Gasification furnace according to the present invention can keep clear inside chiller at any time
It is clean, guarantee that chilled water declines protection of pipe to chiller, equipment safety reliability greatly improves.
Beneficial effects of the present invention are as follows:
The present invention, can be in burner head gas-liquid-solid three-phase pre-mix zone material stream outer edge by the integrated burner that feeds intake of lighting a fire
Air film protective layer is formed, burner service life greatly improves, and gasification installation parallel-adder settle-out time is long, the gasification installation driving and parking frequency
It reduces；It is arranged to two-stage tandem burner hearth according to gasification reaction feature gasification furnace reaction chamber, gasification reaction efficiency of carbon con version can be improved, it is excellent
Change the distribution of gasification reaction product；Radiation waste pot with soot blower includes outside wall surface, annular water-cooling wall down-comer and internal water cooling
Screen is constituted, and the adherency that soot blower mitigates fine ash slag is provided on water-cooling screen, is improved radiation waste pot heat recovery efficiency and is stablized fortune
The row time；Membrane type chiller structure is simple, by the way that the spiral board in chilled water exit is arranged in, reduces grey slag muck in chiller
Product, chilled water form uniform liquid film protective layer by apopore on down-comer, and segmentation high-temperature gas contacts with down-comer, swashs
Cooler can long-term operation.Gasification furnace gasification reaction efficiency of carbon con version according to the present invention is high, and distribution of reaction products is good, gasification furnace energy
Effect is horizontal high, can solve existing water-coal-slurry water cooled wall gasification furnace due to the frequent shutdown maintenance of Equipment, greatly improve gasification furnace
Continuous operating time is increased economic efficiency.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is that the igniting with air film protection of the invention feeds intake integrated burner head construction schematic diagram.
Fig. 3 is that igniting of the invention feeds intake integrated burner head gas film protection structure schematic diagram.
Fig. 4 is the radiation waste pot of the invention with soot blower in the indoor arragement construction schematic diagram of gasification furnace recuperation of heat.
Fig. 5 is the structural schematic diagram of water-cooling screen in radiation waste pot of the invention.
Fig. 6 is that water-cooling screen purges tubule aperture schematic diagram in radiation waste pot of the invention.
Fig. 7 is membrane type chiller schematic diagram of the present invention.
Fig. 8 is that membrane type chiller chilled water export structure of the present invention signal is intended to.
Wherein, appended drawing reference are as follows: 1 reaction chamber, 2 heat recovery chamber, 3 shock chambers, 101 furnace bodies, 102 igniting feed intake integration burn
Mouth, 103 tandem water-evaporating furnaces, the 104 radiation waste pots with soot blower, 105 membrane type chillers, 106 syngas outlets, 107
Large flange two, the indoor fixed plate of 108 Quench, 201 spark levers, 202 central oxygens and blast tube, 203 coal slurry channels, outside 204
Epoxy channel, the 2041 outer epoxy channels of atomization, the outer epoxy channel of 2042 air films, 301 outside wall surfaces, 302 water-cooling wall down-comers, 303
Water-cooling screen, 304 shell and tube water cooling tubes, 305 purging tubules, 306 purging apertures, 401 bolts, 402 Quench water inlets, 403 Quench
Device water tank, 404 circular passages, 405 spiral boards, 406 Quench water outs, 407 fixed ring flat-plates, 408 chilled water Outlet cover plates, 409
Stove bolt.
Specific embodiment
As shown in Figure 1, a kind of water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation, according to reaction compartment structure
It is divided into reaction chamber 1, heat recovery chamber 2, shock chamber 3, specifically includes furnace body 101, the integrated burner 102, tandem water cooling of feeding intake of lighting a fire
Fireplace thorax 103, radiation waste pot 104 and membrane type chiller 105 with soot blower, the igniting feed intake integrated burner 102
It is mounted on the large flange one at 101 top of gasification furnace body, baker fuel passes through the integrated burner that feeds intake of lighting a fire with gasified raw material
102 spray into the two-stage tandem burner hearth being made of water-cooling wall, and the high temperature substrate stream after reaction enters the radiation waste pot 104 with soot blower
High-temperature synthesis gas sensible heat is recycled, water-cooling wall down-comer high-temperature synthesis gas temperature gradually decreases along radiation waste pot periphery, molten slag
Solidification is condensed into little particle, and eventually enters into the cooling of 105 Quench of membrane type chiller, realizes that water-coal-slurry water cooled wall gasification furnace is efficiently grown
Cycle stability operation production synthesis gas demand.
The gasification furnace mainly includes bearing shell 101, is sequentially installed with igniting on bearing shell from top to bottom and feeds intake one
Body burner 102, tandem water-evaporating furnace 103, the radiation waste pot 104 with soot blower, membrane type chiller 105.Igniting feeds intake
Integrated burner 102 is mounted on the large flange one at gasification furnace body 101 top, tandem water-evaporating furnace 103 and is filled with soot blowing
The radiation waste pot 104 set is located in gasification furnace body 101, and gasification furnace body 101 passes through large flange 2 107 and gasification furnace shock chamber
3 are connected, and membrane type chiller 105 is fixed on 3 internal fixation plate 108 of shock chamber by bolt 401.
The igniting integrated burner 102 that feeds intake is provided with baker fuel channel 202, in the gasification furnace baker stage, passes through spark lever
201 pilot fuel gas, with come to the combustion-supporting gas in outer epoxy channel 204 by gasify in-furnace temperature be promoted to 800 DEG C or more rapidly, outside
204 head special gas channel design of epoxy channel by outer epoxy wife combustion gas be divided into atomization the combustion-supporting gas in outer epoxy channel 2041 and
The outer combustion-supporting gas in epoxy channel 2042 of air film can avoid baker process burner head by the combustion-supporting gas that epoxy channel 2042 outside air film sprays
Portion's ablation.The process that feeds intake coal slurry is sprayed by coal slurry channel 203 and is ignited by fuel gas, and burner head coal slurry stops fuel after surely firing
Gas supply, gasifying agent are sprayed by central oxygen and blast tube 202 and outer epoxy channel 204, are sent out in tandem water-evaporating furnace 103
Raw gasification reaction.It can be existed by the material of central oxygen and coal slurry channel 203 by the gasifying agent that epoxy channel 2042 sprays outside air film
The periphery pre-mix zone A that burner head forms three-phase logistics forms stable air film protective layer B, and decrease coal slurry significantly is to burner head
Portion's abrasion, greatly improves Water-coal-slurry nozzle service life.
The radiation waste pot 104 with soot blower includes outside wall surface 301, annular water-cooling wall down-comer 302 and is arranged in
Water-cooling screen 303 in annular water-cooling wall is provided with soot blower on water-cooling screen 303.The annular water-cooling wall down-comer 302 is arranged
At fin panel casing perhaps coiled water-cooling wall or jacket type water-cooling wall；It is closed in annular water-cooling wall down-comer 302 for high temperature
At gas downward flow channel, water-cooling screen 303 is along the radially uniform arrangement N group of annular water-cooling wall down-comer 302, N > 6.The water-cooling screen
303 are alternatively arranged and are formed by shell and tube water cooling tube 304 and purging tubule 305, and the diameter D and purging of shell and tube water cooling tube 304 are small
There are following relationships by the diameter d of pipe 305: D=2.5d；The vertical direction of purging tubule 305 is provided with symmetrical multiple row purging aperture
306；The blowing angle of the purging tubule 305 is β, the angular range of β are as follows: 70 ° < a < 110 °, every two purges aperture 306
Vertical spacing is 0.1 ~ 0.5m.Coal slurry and gasifying agent that integrated burner 102 sprays are fed intake in two-stage tandem water-cooling wall by igniting
Combustion reaction based on exothermic reaction mainly occurs for top the first tandem area of burner hearth 103, due to the first tandem area diameter D1
The second tandem area can be quickly entered less than the second tandem area height h2, reaction product less than the second tandem area diameter D2, height h1,
Reduce the influence that high temperature reflux gas reacts the first tandem area, protection furnace roof water-cooling wall and process burner head, while high temperature
Logistics quickly enters second reaction zone and is conducive to second reaction zone endothermic reaction progress, improves gasification reaction efficiency of carbon con version and improves
The distribution of gasification reaction product realizes that gasification furnace efficiently produces.The high-temperature synthesis gas that gasification generates carries molten slag and goes out tandem water
After cold wall burner hearth 103, exchange heat into the radiation waste pot 104 with soot blower and its internal water cooling pipe, synthesis gas temperature is along water cooling
Wall down-comer 302 gradually decreases, and synthesis gas sensible heat is recycled in the form of mesohigh superheated vapor, in synthesis gas molten slag by
The shock chamber 3 that granular solid ash enters membrane type chiller 105 with the synthesis gas after cooling is gradually solidified into, in radiation waste pot
Portion's water-cooling screen purges the interval of the purging aperture 306 blowout purge gas on tubule 305, and removing is adhered on internal water cooling screen 303
Lime-ash, maintain radiation waste pot stability and high efficiency recycle high-temperature synthesis gas sensible heat.Synthesis gas after cooling cools down through Quench by synthesizing
Gasification furnace is sent out in gas outlet 106, and most of solid lime-ash, which is fallen into, is spaced discharge in 3 bottom chilled water of gasification furnace shock chamber.
Chilled water is sent into the chiller water tank 403 of inverted cone-shaped structure by Quench water inlet 402, under chiller water tank 403
There is chilled water circular passage 404 in portion, and spiral board 405 is provided in circular passage 404, and there is end fixed ring in circular passage 404
Plate 407, such chilled water can form quick disorder state flowing after entering chiller from top to bottom, little particle lime-ash avoided to exist
Accumulation in chiller, chilled water pass through the semicircle being arranged on chilled water Outlet cover plate 408 or the outlet 406 of semiellipse type in Quench
Uniform liquid film is formed on device down-comer, isolation high-temperature synthesis gas is contacted with chiller down-comer, and chiller security reliability is substantially
It improves.The chilled water Outlet cover plate 408 is fixed on fixed ring flat-plate 407 by stove bolt 409.
Gasification furnace parallel-adder settle-out time is greater than existing coal-water-slurry water-cooled wall after gasification furnace single through this embodiment feeds intake
Gasification furnace is, it can be achieved that the efficient long-period stable operation of gasification installation.
Claims (12)
1. a kind of water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation, it is characterised in that: including the one that feeds intake of lighting a fire
Change burner (102), tandem water-evaporating furnace (103), the radiation waste pot (104) with soot blower, membrane type chiller (105)；Institute
It states igniting to feed intake on the large flange one that integrated burner (102) is mounted at the top of gasification furnace body (101), the tandem water-cooling wall
Burner hearth (103), the radiation waste pot (104) with soot blower and membrane type chiller (105) are successively installed on gasification furnace from top to bottom
In furnace body (101)；The igniting integrated burner (102) that feeds intake at least is disposed with from outside to inside: outer epoxy tube, coal slurry pipe
With central oxygen pipe, igniting feed intake integrated burner (102) nozzle in contraction-like；It is outer ring between outer epoxy tube and coal slurry pipe
Oxygen channel (204) is the outer epoxy channel (2042) of air film between the outer epoxy tube of air film and coal slurry pipe, coal slurry pipe and central oxygen pipe it
Between be coal slurry channel (203), be center oxygen and blast tube (202), the axis of central oxygen and blast tube (202) in central oxygen pipe
Spark lever (201) are provided on line；It is passed through central oxygen and combustion gas simultaneously in the central oxygen pipe, or is set again in central oxygen pipe
Set a coaxial fuel gas conduit for being used to be passed through combustion gas.
2. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 1, it is characterised in that: institute
Stating the outer epoxy tube of air film is cannula-like, coal slurry pipe and outer epoxy tube is separated old two channels completely, the channel positioned at outer layer is
It is atomized outer epoxy channel (2041), is epoxy channel (2042) outside air film positioned at the channel of internal layer.
3. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 1, it is further characterized in that:
The outer epoxy tube of the air film is contraction-like half casing, is atomized outer epoxy channel between outer epoxy tube and air film outer ring oxygen pipe
It (2041), is the outer epoxy channel (2042) of air film between the outer epoxy tube of air film and coal slurry pipe.
4. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 2 or 3, feature exist
In: the gas in outer epoxy tube is divided into two-way by the outer epoxy tube of the air film, is used for mist as the outer ethylene gas of atomization all the way
Change combustion gas and water-coal-slurry, another way is used to form gas in the periphery in the raw material premix area of coal slurry and central oxygen as the outer epoxy of air film
Film protection zone.
5. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 4, it is characterised in that: institute
The axis for stating logistics and central oxygen and blast tube (202) in coal slurry channel (203) forms angle a, is atomized outer epoxy channel
(2041) axis of air-flow and central oxygen and blast tube (202) in forms angle b, air-flow and center in air film oxygen channel
The axis of oxygen and blast tube (202) forms angle c, wherein a > b > c.
6. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 1, it is further characterized in that:
According to gasification reaction feature, the tandem water-evaporating furnace (103) is arranged to two-stage tandem plot structure, the first tandem area it is straight
Diameter D1 the diameter D2 less than the second tandem area, the height h2 of the height h1 in the first tandem area less than the second tandem area.
7. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 6, it is further characterized in that:
The water-cooling wall of the tandem water wall structure is arranged to fin panel casing perhaps coiled water-cooling wall or jacket type water-cooling wall.
8. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 1, it is characterised in that: institute
The radiation waste pot (104) with soot blower is stated to include outside wall surface (301), annular water-cooling wall down-comer (302) and be arranged in annular
Water-cooling screen (303) in water-cooling wall down-comer (302), water-cooling screen are provided with soot blower on (303).
9. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 8, it is characterised in that: institute
It states annular water-cooling wall down-comer (302) and is arranged to fin panel casing perhaps coiled water-cooling wall or jacket type water-cooling wall；Ring
It is high-temperature synthesis gas downward flow channel in shape water-cooling wall down-comer (302), water-cooling screen (303) is along annular water-cooling wall down-comer
(302) radially uniform arrangement N group, N > 6.
10. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 8 or claim 9, feature exist
In: the water-cooling screen (303) is alternatively arranged with purging tubule (305) by shell and tube water cooling tube (304) and is formed, shell and tube water cooling tube
(304) there are following relationships: D=2.5d by the diameter d of diameter D and purging tubule (305)；Purge the vertical direction of tubule (305)
It is provided with symmetrical multiple row purging aperture (306)；The blowing angle of purging tubule (305) is β, the angular range of β are as follows: 70 ° <
A < 110 °, the vertical spacing that every two purges aperture (306) is 0.1 ~ 0.5m.
11. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 1, it is characterised in that:
The membrane type chiller (105) is fixed in the fixed plate (108) in shock chamber (3), and chilled water passes through multiple Quench water inlets
(402) chiller water tank (403) are full of, chiller water tank (403) lower end is provided with Quench water out (406).
12. the water-coal-slurry water cooled wall gasification furnace of efficient long-period stable operation according to claim 11, it is characterised in that:
The chiller water tank (403) is arranged to hollow inverted cone-shaped structure, and Quench water out (406) is located at inverted cone-shaped structure bottom part ring
The lower end in shape channel (404) is provided with spiral board (405) in circular passage (404), and circular passage (404) have end fixed ring
Plate (407)；The Quench water out (406) is in semicircle or semiellipse type shape.
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| CN201910157438.3A CN109810731B (en) | 2019-03-01 | 2019-03-01 | high-efficient long period steady operation's coal slurry water-cooling wall gasifier |
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| CN201910157438.3A CN109810731B (en) | 2019-03-01 | 2019-03-01 | high-efficient long period steady operation's coal slurry water-cooling wall gasifier |
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| CN102492478A (en) * | 2011-12-23 | 2012-06-13 | 上海锅炉厂有限公司 | Novel two-stage multi-nozzle pressurized gasifier and its gasification method |
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| CN109810731B (en) | 2019-12-13 |
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