CN102031152B - Process nozzle and system for gasifying water coal slurry and application thereof - Google Patents

Process nozzle and system for gasifying water coal slurry and application thereof Download PDF

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Publication number
CN102031152B
CN102031152B CN2010105137002A CN201010513700A CN102031152B CN 102031152 B CN102031152 B CN 102031152B CN 2010105137002 A CN2010105137002 A CN 2010105137002A CN 201010513700 A CN201010513700 A CN 201010513700A CN 102031152 B CN102031152 B CN 102031152B
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China
Prior art keywords
water
coal
slurry
oxygen
burner
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CN2010105137002A
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Chinese (zh)
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CN102031152A (en
Inventor
唐煜
朱平
王家信
徐祖斌
暴秋霖
杜迎春
胡先君
汤中文
李海宾
兰秀菊
张永胜
罗泽林
薛振欣
付君
刘柱元
Original Assignee
神华集团有限责任公司
中国神华煤制油化工有限公司
中国神华煤制油化工有限公司包头煤化工分公司
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Priority to CN2010105137002A priority Critical patent/CN102031152B/en
Publication of CN102031152A publication Critical patent/CN102031152A/en
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Abstract

The invention provides a process nozzle and a system for gasifying water coal slurry. The process nozzle comprises a first oxygen channel, a water coal slurry channel, a second oxygen channel, a first cooling water jacket and a cooling water coil, wherein the first oxygen channel comprises a first oxygen channel inlet and a first oxygen channel outlet; the water coal slurry channel comprises at least one water coal slurry channel inlet and a water coal slurry channel outlet; the second oxygen channel comprises a second oxygen channel inlet and a second oxygen channel outlet; the first cooling water jacket comprises a first cooling water jacket inlet and a first cooling water jacket outlet; and the cooling water coil comprises a cooling water coil inlet and a cooling water coil outlet. The process nozzle is characterized in that: the first oxygen channel is positioned at the central position of the process nozzle; the water coal slurry channel is positioned between the first oxygen channel and the second oxygen channel and surrounds the periphery of the first oxygen channel; and the second oxygen channel surrounds the periphery of the water coal slurry channel. The process nozzle reduces the length of combustion flame more effectively, reduces the ablation of flame on a refractory brick, promotes the mixing and atomization of water coal slurry and oxygen and improves gasification efficiency.

Description

A kind of process burner for coal water slurry gasification and system and application thereof
Technical field
The present invention relates to the coal gasification field, in particular to a kind of process burner for coal water slurry gasification and system and application thereof.
Background technology
Coal is a kind of important energy, and for a long time, coal in use is accompanied by serious environmental pollution.In recent years, take reducing polluted emission with improve utilization ratio and day by day by people, paid attention to as the clean coal technology of purpose; Coal Gasification Technology is as wherein a kind of Coal dressing and transformation technology, is considered to one of clean coal technology of high-efficiency cleaning the most.Modern Coal Gasification Technology, especially high pressure, large volume airflow bed gasification technology are in industrial acquisition extensive use, and Texaco's water coal slurry pressure gasification technology is wherein the most typically representative.There have been many producers to introduce and utilized Texaco's technology to carry out coal water slurry gasification in China, this technology has that environmental pollution is little, the automaticity advantages of higher, but this technical matters is with some ubiquitous problems, and these problems affect the normal operation of Texaco's device in varying degrees; Texaco (Texaco) process burner is most important part in the texaco gasification device, be the key that can gasification furnace High-efficient Production steady in a long-term, and atomizing effect and the service life of how to improve process burner are one of most important problems in Texaco's water coal slurry pressure gasification technology.
Texaco (Texaco) gasification furnace, take water-coal-slurry as raw material, adopts high-purity O 2, for gasifying agent, belong to the gasification of supercharging fluid injected bed.Texaco gasifier mainly is comprised of burner, combustion chamber, shock chamber or waste heat boiler; Burner is the most critical parts of Texaco gasifier, is three runner designs.Water-coal-slurry is walked center-aisle between central oxygen and outer epoxy; Gasification furnace top is combustion chamber, is gasification zone, has lining of fire brick; The gasification furnace bottom is shock chamber, is the coal gas cooling zone.Feed coal, water and additive are added in rod mill simultaneously, and grinding to form can be for the water-coal-slurry of pump conveying, and wherein the water coal slurry concentration mass fraction is controlled between 58-65%, and preferred water coal-water fluid concentration mass fraction is controlled near 60~63%.Water-coal-slurry is broken under the effect of high speed oxygen air-flow by the top burner, atomization sprays into gasification furnace.The water-coal-slurry of atomization and oxygen are subject to the hyperthermia radiation effect of refractory liner in stove, experience rapidly the physical and chemical process of the series of complexes such as gasification of the cracking burning of preheating, moisture evaporation, coal carbonization, volatile matter and charcoal, generate with H finally 2+ CO is main synthesis gas.
Efficient operation has important impact to process burner on the long period of Texaco gasifier.At present industry is large, and what produce main application is three way Burners of exterior mixing, and as shown in Figure 1, technique oxygen is walked outermost passage and internal channel, and water-coal-slurry walks center-aisle, between two strands of oxygen jets; Technique oxygen sprays at a high speed the impact water-coal-slurry, thereby makes the broken atomization of water-coal-slurry, becomes the little water droplet of coal slurry of suitable burning.The atomizing effect of the process burner of this structure makes moderate progress with respect to the burner of two runners, but due to the restriction that is jet and the gasification furnace ratio of height to diameter itself of single fire mouth, in stove the turbulent flow mixing ratio a little less than, atomizing angle is less, insufficient and its skewness of coal slurry granule atomization, make local area that oxygen occur superfluous, generate CO 2, and the effective gas (H that has generated 2+ CO) secondary response easily occurs, cause effective gas production declining, and the very few place of oxygen, form the unburned district, just have some coal slurry particles and fail gasification and just fall in shock chamber.And mode of jet causes the coal slurry particle time of staying too short, even part coal slurry granule ejects behind combustion chamber the combustion gasification that also is not able to do in time, thus make the gasification efficiency of Texaco's technique and efficiency of carbon con version low with respect to Shell and four burner opposed type gasification furnaces.The length of flame is not easy to hold, and is unfavorable to refractory brick when long, make refractory brick local heating, and refractory brick can be subject to seriously washing away of high speed water coal slurry.Simultaneously because the process burner head is in hot environment, and the high speed that is subject to the coal slurry particle washes away, so burner often is out of shape in the short period of time and weares and teares, and even burnt.
United States Patent (USP) U.S.Pat 3705108,3743606 discloses respectively a kind of coal water slurry gasification burner, and such burner has advantage simple in structure, easy to maintenance, but finds in industrial actual the use, and there is following shortcoming in such burner:
(1) jet length of " flame " is longer, causes the serious ablation of refractory brick in gasification furnace, has shortened the service life of Gas-making Furnace;
(2) gasifying agent and fuel mix are poor, gasification imperfection, effectively gas (CO+H 2) content of composition is lower, and CO 2Content is higher, and the conversion ratio of carbon is only 96%;
(3) the burner abrasion is serious, and the life-span is only 2~3 months.
Chinese patent literature 95111750.5 has proposed a kind of burner of three-way channel combined water coal slurry gasification with cyclone, this burner mainly is comprised of central oxygen jet pipe, interior ring water-coal-slurry jet pipe, outer epoxy jet pipe and cooling water nozzle, and is provided with cyclone respectively in the shower nozzle inner and outer rings shower nozzle of center.This burner has shortened the length of combustion flame effectively, reduced the ablation of flame to refractory brick, has promoted simultaneously mixing and atomization of water-coal-slurry and oxygen, and gasification efficiency increases.But (1) coal slurry is mode of jet, fails gasification, and combustion and just spurts in shock chamber so still also have some coal slurry particles, so the space that gasification efficiency also is improved; (2) burner is still improved limited by the situation of bad ablation of heat simultaneously; (3) cooling water coil also is easier to be burnt, and even causes parking when serious; (4) the direct frontal impact of high speed water coal slurry to burner, can cause burner to be subjected to erosive wear for a long time.
Therefore,, in order to overcome above-mentioned defect, a kind of process burner of the novel coal slurry gasifier that is applicable to coal water slurry gasification need to be provided and comprise the gasified boiler system of this process burner.
Summary of the invention
The objective of the invention is to provide on the basis of existing technology a kind of novel process burner that is used for coal water slurry gasification and the gasified boiler system that comprises this process burner, to solve process burner and the existing technical problem of gasified boiler system of the present coal slurry gasifier that is used for coal water slurry gasification.
For this reason, one aspect of the present invention provides a kind of novel process burner that is used for coal water slurry gasification, comprising:
The first oxygen channel, described the first oxygen channel comprise the first oxygen channel entrance and the outlet of the first oxygen channel;
The water-coal-slurry passage, described water-coal-slurry passage comprises at least one water-coal-slurry feeder connection and water-coal-slurry channel outlet;
The second oxygen channel, described the second oxygen channel comprise the second oxygen channel entrance and the outlet of the second oxygen channel;
The first cooling water jecket, described the first cooling water jecket comprise the first cooling water jecket entrance and the outlet of the first cooling water jecket;
Cooling water coil, described cooling water coil comprise cooling water coil entrance and cooling water coil outlet;
Wherein said the first oxygen channel is positioned at the centre of described process burner, described water-coal-slurry passage between described the first oxygen channel and described the second oxygen channel around the periphery of described the first oxygen channel, described the second oxygen channel is around the periphery of described water-coal-slurry passage, described cooling water jecket is around the periphery of described the second oxygen channel, and described cooling water coil coils in described cooling water jecket peripheral.
Preferably, this process burner further comprises the high temperature resistant antiwear corrosion resistant enclosure, and wherein said high temperature resistant antiwear corrosion resistant enclosure is around the periphery of described cooling water coil, and extends longitudinally to the nozzle of described process burner.
preferably, this process burner further comprises the second cooling water jecket, described the second cooling water jecket comprises the second cooling water jecket entrance and the outlet of the second cooling water jecket, described the second cooling water jecket is between described water-coal-slurry passage and described the second oxygen channel, and around the periphery of described water-coal-slurry passage, be respectively arranged with the first cooling-water duct and the second cooling-water duct in described the first cooling water jecket and described the second cooling water jecket, respectively from described the first cooling water jecket entrance and the second cooling water jecket entrance, described the first cooling-water duct and the second cooling-water duct first extend downward described the first cooling water jecket and described the second cooling water jecket bottom, and then with " Z " font, repeatedly wriggle upwards until arrive described the first cooling water jecket outlet and the outlet of the second cooling water jecket.
Preferably, this process burner further comprises:
The first water vapour/carbon dioxide passage, described the first water vapour/carbon dioxide passage comprise the first water vapour/carbon dioxide feeder connection and the first water vapour/carbon dioxide channel outlet, and
The second water vapour/carbon dioxide passage, described the second water vapour/carbon dioxide passage comprise the second water vapour/carbon dioxide feeder connection and the second water vapour/carbon dioxide channel outlet,
Wherein, described the first water vapour/carbon dioxide passage is between described the first oxygen channel and described water-coal-slurry passage, and around the periphery of described water-coal-slurry passage, and at described the first water vapour/carbon dioxide channel exit, be to the circle ring column of cylinder center line reducing, described the second water vapour/carbon dioxide passage is between described water-coal-slurry passage and described the second oxygen channel, and around the periphery of described the second oxygen channel, and at described the second water vapour/carbon dioxide channel exit, be to the circle ring column of cylinder center line reducing.
Preferably, described first oxygen channel of this process burner is to the cylinder of cylinder center line reducing in described the first oxygen channel exit, described water-coal-slurry passage is to the circle ring column of cylinder center line reducing at described water-coal-slurry channel exit, and described the second oxygen channel is to the circle ring column of cylinder center line reducing in described the second oxygen channel exit.
Preferably, described first water vapour of this process burner/carbon dioxide passage is to the annulus post of cylinder center line reducing at described the first water vapour/carbon dioxide channel exit, and described the second water vapour/carbon dioxide passage is to the circle ring column of cylinder center line reducing at described the second water vapour/carbon dioxide channel exit.
Preferably, this process burner further comprises water-coal-slurry mixed aerosol device, and described water-coal-slurry mixed aerosol device comprises:
Pipe section and premixer,
Wherein, described pipe section and described premixer share level or vertically disposed the first cylindrical shell, in described the first cylindrical shell inner concentric, the second cylindrical shell is set, and the first end wall that has described the first cylindrical shell of sealing in the end of the described premixer away from described pipe section, has an outlet in the center of described the first end wall, the described water-coal-slurry passage of itself and process burner links
Described pipe section and described premixer are by to protruding level or the vertically disposed frustum that advances of described the second cylindrical shell, limiting, described frustum has annular opening and enters for carbon dioxide between described the first cylindrical shell and described the second cylindrical shell, described frustum has a circular outlet and enters for water-coal-slurry in the center of described the second cylindrical shell
Be defined as the water-coal-slurry admission passage together with described second cylindrical shell of described the first cylindrical shell and concentric setting and the table top of level or vertically disposed described frustum, be defined as the carbon dioxide admission passage together with described second cylindrical shell of described the first cylindrical shell and concentric setting and the conical surface of level or vertically disposed described frustum
It (is water-coal-slurry mixed aerosol device and external CO that the carbon dioxide conduit of the pipe section (210) of the gas phase entrance of described carbon dioxide admission passage (256) and external described water-coal-slurry mixed aerosol device (200) links 2Pipeline is connected on the gas phase entrance of pipe section of water-coal-slurry mixed aerosol device).
Water-coal-slurry mixed aerosol device can adopt horizontal versions, also can adopt vertical form, preferably adopt horizontal versions, and is vertical form as shown in the drawing.
Wherein, water-coal-slurry mixed aerosol device and external CO 2Pipeline preferably is connected on the gas phase entrance of pipe section of atomization mixed aerosol device in the mode of flange connect.
Atomization coal water slurry enters the ellipse atomization coal water slurry pipeline with same size and identical caliber of flange connection with it from the ellipse outlet from the output of water-coal-slurry mixed aerosol device.The connecting line of mixed aerosol device and process burner is the short as far as possible and few bend pipe of atomization coal water slurry pipeline, and the connecting line length of preferred mixed aerosol device and process burner is in 0.8 meter, more preferably at 0.3~0.7 meter, further preferably at 0.4~0.6 meter.
More preferably, this process burner is symmetrically arranged with supersonic generator being positioned on described first cylindrical shell of outside, described premixer.
More preferably, this process burner is provided with loop-shaped ultrasound generator at described the first cylindrical shell around outside, described premixer.
More preferably, also be provided with diaphragm between the outside, premixer of described water-coal-slurry mixed aerosol device and supersonic generator.
Further preferably, the direction of described annular opening is towards centre, described premixer.
Preferably, this process burner starts, at the downward spiral in the inside of described water-coal-slurry passage, the helical form deflector is set from the entrance of described water-coal-slurry passage.
Preferably, this process burner further comprises the first oxygen cyclone and the second oxygen cyclone, and described the first oxygen cyclone and the second oxygen cyclone lay respectively at described the first oxygen channel outlet reducing top or be positioned at the lower end of reducing and the top of the reducing of described the second oxygen channel outlet or be positioned at the lower end of reducing.
Preferably, this process burner further comprises the first oxygen cyclone and the second water vapour/carbon dioxide cyclone, and described the first oxygen cyclone and the second water vapour/carbon dioxide cyclone lay respectively at described the first oxygen channel outlet reducing lower end or be positioned at the top of reducing and the lower end of the reducing of described the second water vapour/carbon dioxide channel outlet or be positioned at the top of reducing.
Preferably, described at least one water-coal-slurry feeder connection of this process burner is positioned at the tangential direction of described water-coal-slurry passage, described at least one water-coal-slurry feeder connection is selected from one, more preferably two, be preferably again three or four, and plural described water-coal-slurry feeder connection is symmetrical.
Preferably, the described water-coal-slurry feeder connection of this process burner is along the section of the B-B face short ellipse of the long horizontal direction diameter (d) of diameter (D) in vertical direction.
Preferably, the described first oxygen cyclone of this process burner and described the second oxygen cyclone or described the second water vapour/carbon dioxide cyclone are constructed such that the first oxygen and the second oxygen or the second water vapour/carbon dioxide penetrate in the tangential direction of described the first oxygen cyclone and described the second oxygen cyclone or described the second water vapour/carbon dioxide cyclone respectively.
Another aspect of the present invention provides a kind of coal water slurry gasification furnace system that is applicable to coal water slurry gasification, it is characterized in that comprising:
The process burner of coal water slurry gasification of the present invention, and
Gasification furnace.
A third aspect of the present invention provides the be applicable to process burner of coal water slurry gasification or the application that the furnace system of the coal water slurry gasification for coal water slurry gasification according to the present invention is produced at synthesis gas, reducing gases or fuel gas of the present invention.
Process burner for coal water slurry gasification of the present invention with and system, gasifying agent is generally oxygen, enter burner by central oxygen passage and annular space oxygen passage, water-coal-slurry (or other fuel) enters burner by the water-coal-slurry passage, and the mixing ratio of regulation and control gasifying agent and water-coal-slurry can make the combustion flame in burner exit shorten to suitable length.
Simultaneously, before water-coal-slurry enters burner, at first enter premixer and the high pressure CO that is entered by Y type hole 2Carry out premixed, and water-coal-slurry mixed aerosol device premixer around the uniform two or four ultrasonic unit that is equipped with.Y type hole and ultrasonic wave help CO 2Mix with water-coal-slurry, reach the effect of primary atomization.After water-coal-slurry primary atomization device, in water-coal-slurry inside, be dispensed into CO 2, when water-coal-slurry sprays from the burner outlet, because inside and outside differential pressure increases, CO 2Bubble sharply expands, and slight sudden strain of a muscle of moment is quick-fried explodes into more tiny drop with liquid, and larger with oxygen contact gear ratio surface area like this, gasification reaction is rapider.The atomizing particle fineness is that liquid mist average grain diameter (SMD) is little, and diffusional resistance is less, make atomizing particle distribute and more be tending towards evenly, and be the problem of combustion zone and partial oxygen surplus thereby alleviated.
The advantage of the first cooling water jecket in the present invention is; built-in cooling-water duct; make the first downward cooling burner head that is heated the strongest of cooling water; wriggle along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top; like this; make and make the easiest burner head that is damaged by the high temperature heat etching obtain at first the high efficiency cooling of low-temperature cooling water when cooling water temperature is also very low, make the burner head obtain effectively protection.
Perhaps, second cooling-water duct (chuck) is set between epoxy and water-coal-slurry passage outside again, make the first downward cooling burner head that is heated the strongest of cooling water, wriggle along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top, make like this burner temperature more even, temperature remains at a lower level, thereby has extended burner service life.And burner head and burner cooling water coil are selected wearability, resistance to sudden heating and kinds of anti-sulfur corrosion material preferably, at the protective layer of burner head, are lined with the heat resistant and wear resistant corrosion-resistant material, play Pleiotropic Protections, make burner more durable in use.
Description of drawings
Fig. 1 is front (cuing open) diagram according to the novel process nozzle that is used for coal water slurry gasification of an embodiment of the invention;
Fig. 2 a is the horizontally disposed water-coal-slurry mixed aerosol device that connects according to the technique nozzle of the present invention sectional side elevation along center line, Fig. 2 b is the perspective view according to the vertically disposed water-coal-slurry mixed aerosol device of technique nozzle connection of the present invention, the upper figure of Fig. 2 c is that the top view of the water-coal-slurry mixed aerosol device that connects according to technique nozzle of the present invention and figure below of Fig. 2 c are the vertically disposed water-coal-slurry mixed aerosol device that connects according to the technique nozzle of the present invention sectional side elevations along center line, Fig. 2 d is according to the level of technique nozzle connection of the present invention or the view in vertically disposed water-coal-slurry mixed aerosol device exit, and Fig. 2 e is according to the level of another kind of technique nozzle connection according to the present invention or the view in vertically disposed water-coal-slurry mixed aerosol device exit, wherein also be provided with diaphragm between the outside, premixer of water-coal-slurry mixed aerosol device and supersonic generator,
Fig. 3 a is according to the water-coal-slurry passage list entrance schematic diagram in technique nozzle of the present invention, and Fig. 3 b is entrance schematic diagrames two according to the water-coal-slurry passage in technique nozzle of the present invention;
Fig. 4 is that water-coal-slurry passage in the technique nozzle of Fig. 1 according to the present invention is along the inlet tube sectional view of B-B line;
Fig. 5 a is the top view of cyclone, and Fig. 5 b is the front view of cyclone section;
Fig. 6 is the sectional view of the technique nozzle of Fig. 1 according to the present invention along the A-A line;
Fig. 7 is the diagram of cooling water jecket internal structure of the technique nozzle of Fig. 1 according to the present invention;
Fig. 8 is according to the front of another structure of novel process burner of the present invention (cuing open) diagram;
Fig. 9 is the perspective view of the spiral deflector that arranges in water-coal-slurry passage according to process burner of the present invention;
Figure 10 is the schematic diagram that is provided with the coal water slurry gasification furnace system of water-coal-slurry mixed aerosol device.
The specific embodiment
The specific embodiment of the present invention below is provided.Those skilled in the art should understand that wherein embodiment is only for illustrative purposes, should not be regarded as limiting by any way the scope of the invention defined by the claims.
An embodiment of the invention, provide a kind of novel process burner 10,80 that is used for coal water slurry gasification, comprising:
The first oxygen channel 110,810, this first oxygen channel comprise the first oxygen channel entrance 112,812 and the first oxygen channel outlet 115,815;
Water-coal-slurry passage 120,820, this water-coal-slurry passage comprises at least one water-coal-slurry feeder connection 122,822 and water-coal-slurry channel outlet 125,825;
The second oxygen channel 130,830, this second oxygen channel comprise the second oxygen channel entrance 132,832 and the second oxygen channel outlet 135,835;
The first cooling water jecket 150,850, this first cooling water jecket comprise the first cooling water jecket entrance 152,852 and the first cooling water jecket outlet 154,854;
Cooling water coil 160,860, this cooling water coil comprise cooling water coil entrance 162,862 and cooling water coil outlet 164,864;
This first oxygen channel 110 wherein, 810 are positioned at this process burner 10,80 centre, this water-coal-slurry passage 120,820 are positioned between this first oxygen channel 110,810 and this second oxygen channel 130,830 around this first oxygen channel 110,810 periphery, this second oxygen channel 130,830 is around the periphery of this water-coal-slurry passage 120,820, this cooling water jecket 150,850 peripheries around this second oxygen channel 130,830, this cooling water coil 160,860 coil in this cooling water jecket 150,850 peripheries.
One more preferably in embodiment, be respectively arranged with built-in the first cooling-water duct and the second cooling-water duct in this first cooling water jecket 150 and this second cooling water jecket 140, respectively from this first cooling water jecket entrance 152 and the second cooling water jecket entrance 142, this first cooling-water duct and the second cooling-water duct first extend downward this first cooling water jecket 150 and these the second cooling water jecket 140 bottoms, and then with " Z " font, repeatedly wriggle upwards until arrive this first cooling water jecket outlet the 154 and second cooling water jecket outlet 144.
As shown in Figure 7; make the first downward cooling burner head that is heated the strongest of cooling water; wriggle along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top; like this; make and make the easiest burner head that is damaged by the high temperature heat etching obtain at first the high efficiency cooling of low-temperature cooling water when cooling water temperature is also very low, make the burner head obtain effectively protection.
In a preferred embodiment, this process burner 10,80 further comprise high temperature resistant antiwear corrosion resistant enclosure 190,890, wherein this high temperature resistant antiwear corrosion resistant enclosure 190,890 is around this cooling water coil 160,860 periphery, and extend longitudinally to spout 105,805 places of this process burner 10,80.
In a preferred embodiment, this process burner 10 further comprises the second cooling water jecket 140, this second cooling water jecket comprises the second cooling water jecket entrance 142 and the second cooling water jecket outlet 144, this second cooling water jecket is between this water-coal-slurry passage 120 and this second oxygen channel 130, and around the periphery of this water-coal-slurry passage 120.
In a preferred embodiment, this process burner 80 further comprises:
The first water vapour/carbon dioxide passage 870, this first water vapour/carbon dioxide passage comprise the first water vapour/carbon dioxide feeder connection 872 and the first water vapour/carbon dioxide channel outlet 875, and
The second water vapour/carbon dioxide passage 880, this second water vapour/carbon dioxide passage comprise the second water vapour/carbon dioxide feeder connection 882 and the second water vapour/carbon dioxide channel outlet 885,
wherein, this first water vapour/carbon dioxide passage 870 is between this first oxygen channel 810 and this water-coal-slurry passage 820, and around the periphery of this water-coal-slurry passage 820, and at this first water vapour/carbon dioxide channel outlet 875 places, be to the circle ring column of cylinder center line reducing, this second water vapour/carbon dioxide passage 880 is between this water-coal-slurry passage 820 and this second oxygen channel 830, and around the periphery of this second oxygen channel 830, and at this second water vapour/carbon dioxide channel outlet 885 places, be to the circle ring column of cylinder center line reducing.
In a preferred embodiment, this process burner 10, this of 80 the first oxygen channel 110,810 is to the cylinder of cylinder center line reducing at these the first oxygen channel outlet 115,815 places, this water-coal-slurry passage 120,820 are to the circle ring column of cylinder center line reducing at these water-coal-slurry channel outlet 125,825 places, and this second oxygen channel 130,830 are to the circle ring column of cylinder center line reducing at these the second oxygen channel outlet 135,835 places.
In a preferred embodiment, this process burner 10, this of 80 the first water vapour/carbon dioxide passage 870 is to the annulus post of cylinder center line reducing at this first water vapour/carbon dioxide channel outlet 875 places, and this second water vapour/carbon dioxide passage 880 is to the circle ring column of cylinder center line reducing at this second water vapour/carbon dioxide channel outlet 885 places.
In a preferred embodiment, this process burner 10,80 further comprises water-coal-slurry mixed aerosol device 200, and this water-coal-slurry mixed aerosol device 200 comprises:
Pipe section 210 and premixer 220,
Wherein, water-coal-slurry mixed aerosol device 200 and external CO 2Pipeline is connected on the gas phase entrance of pipe section 210 of water-coal-slurry mixed aerosol device,
And wherein, this pipe section 210 and this premixer 220 share level or vertically disposed the first cylindrical shell 250, in these the first cylindrical shell 250 inner concentric, the second cylindrical shell 260 is set, and the first end wall 240 that has this first cylindrical shell 250 of sealing in the end of this premixer away from this pipe section 210, has an outlet 290 in the center of this first end wall 240, itself and this water-coal-slurry passage 120 gases link
This pipe section 210 and this premixer 220 are by to protruding level or the vertically disposed frustum 230 that advances of this second cylindrical shell 260, limiting, this frustum 230 has annular opening 270 and enters for carbon dioxide between this first cylindrical shell 250 and this second cylindrical shell 260, this frustum 230 has a circular outlet 280 and enters for water-coal-slurry in the center of this second cylindrical shell 260
Be defined as water-coal-slurry admission passage 266 together with this second cylindrical shell 260 of this first cylindrical shell 250 and concentric setting and the table top 230 ' of level or vertically disposed this frustum 230, this first cylindrical shell 250 and this second cylindrical shell 260 of concentric setting and the conical surface 230 of horizontally disposed this frustum 230 " together be defined as carbon dioxide admission passage 256.
Water-coal-slurry mixed aerosol device 200 can adopt horizontal versions (as shown in accompanying drawing 2a), also can adopt (as shown in accompanying drawing 2b, 2c and the 2d) of vertical form, preferred employing horizontal versions, and be vertical form as shown in accompanying drawing 2b, 2c and 2d.
Wherein, as shown in Figure 2 c, water-coal-slurry mixed aerosol device 200 and external CO 2Pipeline is connected in the mode of flange connect on the gas phase entrance 265 of pipe section of atomization mixed aerosol device.
, referring to Fig. 2 d, through the water-coal-slurry of atomization, from ellipse outlet 290, export water-coal-slurry mixed aerosol devices 200 and enter the ellipse atomization coal water slurry pipeline with same size and identical caliber (as the water-coal-slurry pipeline 122 of Fig. 1 and Fig. 4) of flange connection with it.The connecting line of water-coal-slurry mixed aerosol device and process burner is the short as far as possible and bend pipe as far as possible less of atomization coal water slurry pipeline 122.The connecting line length of preferred mixed aerosol device and process burner is in 0.8 meter, more preferably at 0.3~0.7 meter, further preferably at 0.4~0.6 meter.Water-coal-slurry mixed aerosol device can adopt horizontal versions (as shown in accompanying drawing 2a), also can adopt vertical form, is vertical form as shown in accompanying drawing 2b, 2c and 2d.
Respectively referring to accompanying drawing 2a, 2b, 2c and 2d, the water-coal-slurry pipeline is connected on the water-coal-slurry entrance 265 of water-coal-slurry mixed aerosol device 200 in the mode of flange connect, water-coal-slurry enters water-coal-slurry passage 266 thus, enters premixer 220 after one section hole enlargement that is provided with tangential slot Y type hole 270; External CO 2Pipeline is connected on the gas phase entrance 265 of water-coal-slurry mixed aerosol device 200, from the CO of rear system in the mode of flange connect 2Enter thus gas phase channel 256, then by tangential slot Y type hole 270, tangentially enter premixer (also referred to as " primary atomization chamber ") 220, CO 2(or primary atomization chamber) 220 is oblique in premixer breaks up water-coal-slurry to be atomized into drop.
On premixer (or primary atomization chamber) 220 outer walls, symmetry is evenly equipped with four ultrasonic ultrasonic delay line memories 255, and ultrasonic wave makes water-coal-slurry and CO 2Fall apart into less drop and thinner gas bag, become atomization coal water slurry.
Atomization coal water slurry goes out water-coal-slurry mixed aerosol device 200 from ellipse outlet 290 and enters the ellipse atomization coal water slurry pipeline 122,822 with same size and identical caliber of flange connection with it.
Atomization coal water slurry pipeline 122 connects in the flange mode with the 200 atomized liquid outlets 290 of mixed aerosol device, the connecting line of mixed aerosol device and process burner is the atomization coal water slurry pipeline installing for short as far as possible and do not have or few bend pipe as far as possible, and the connecting line length of mixed aerosol device and process burner is in 0.8 meter.
One more preferably in embodiment, this process burner 10,80 is symmetrically arranged with supersonic generator 255 being positioned on this first cylindrical shell 250 of these 220 outsides, premixer.For example this process burner 10,80 is symmetrical arranged two or four supersonic generator 255 being positioned on this first cylindrical shell 250 of these 220 outsides, premixer.
More preferably in embodiment, this process burner 10,80 is provided with loop-shaped ultrasound generator 255 at this first cylindrical shell 250 around these 220 outsides, premixer one.
In a further preferred embodiment; also be provided with diaphragm 258 (referring to Fig. 2 e between 220 outsides, premixer of this water-coal-slurry mixed aerosol device and supersonic generator 255; it is according to the level of another kind of technique nozzle connection according to the present invention or the view in vertically disposed water-coal-slurry mixed aerosol device exit, wherein also is provided with diaphragm between the outside, premixer of water-coal-slurry mixed aerosol device and supersonic generator).
In a further preferred embodiment, the direction of this annular opening 270 is towards these 220 centres, premixer.
In a preferred embodiment, this process burner 10,80 starts, at the downward spiral in the inside of this water-coal-slurry passage 120,820, helical form deflector 910 is set from the entrance 122,822 of this water-coal-slurry passage 120,820.
In a preferred embodiment, this process burner 10 further comprises the first oxygen cyclone 118 and the second oxygen cyclone 138, and this first oxygen cyclone 118 and the second oxygen cyclone 138 lay respectively at the top of the reducing of the top of reducing of this first oxygen channel outlet 115 and this second oxygen channel outlet 135.
In another preferred embodiment, this process burner 10 further comprises the first oxygen cyclone 118 and the second oxygen cyclone 138, and this first oxygen cyclone 118 and the second oxygen cyclone 138 lay respectively at the lower end of the reducing of the lower end of reducing of this first oxygen channel outlet 115 and this second oxygen channel outlet 135.
In a preferred embodiment, this process burner 80 further comprises the first oxygen cyclone 818 and the second water vapour/carbon dioxide cyclone 888, and this first oxygen cyclone 818 and the second water vapour/carbon dioxide cyclone 888 lay respectively at the lower end of the reducing of the lower end of reducing of this first oxygen channel outlet 815 and this second water vapour/carbon dioxide channel outlet 885.
In another preferred embodiment, this process burner 80 further comprises the first oxygen cyclone 818 and the second water vapour/carbon dioxide cyclone 888, and this first oxygen cyclone 818 and the second water vapour/carbon dioxide cyclone 888 lay respectively at the top of the reducing of the top of reducing of this first oxygen channel outlet 815 and this second water vapour/carbon dioxide channel outlet 885.
In a preferred embodiment, at least one water-coal-slurry feeder connection 122,822 of this process burner 10,80 is positioned at the tangential direction of this water-coal-slurry passage 120,820, and this at least one water-coal-slurry feeder connection 122,822 is one.
More preferably in embodiment, at least one water-coal-slurry feeder connection 122,822 of this process burner 10,80 is positioned at the tangential direction of this water-coal-slurry passage 120,820 one, and this at least one water-coal-slurry feeder connection 122,822 is two, and symmetrical.
More preferably in embodiment, at least one water-coal-slurry feeder connection 122,822 of this process burner 10,80 is positioned at the tangential direction of this water-coal-slurry passage 120,820 at another, and this at least one water-coal-slurry feeder connection 122,822 is three, and symmetrical.
In another more preferably embodiment, at least one water-coal-slurry feeder connection 122,822 of this process burner 10,80 is positioned at the tangential direction of this water-coal-slurry passage 120,820, and this at least one water-coal-slurry feeder connection 122,822 is four, and symmetrical.
In a further preferred embodiment, at least one water-coal-slurry feeder connection 122,822 of this process burner 10,80 is positioned at the tangential direction of this water-coal-slurry passage 120,820, and this at least one water-coal-slurry feeder connection 122,822 is six, and symmetrical.
In a preferred embodiment, this water-coal-slurry feeder connection 122,822 of this process burner 10,80 is along the section of the B-B face short ellipse of the long horizontal direction diameter (d) of diameter (D) in vertical direction.
In a preferred embodiment, this first oxygen cyclone 118 of this process burner 10 and this second oxygen cyclone 138 are constructed such that the first oxygen and the second oxygen penetrate in the tangential direction of this first oxygen cyclone 118 and this second oxygen cyclone 138 respectively.
In another preferred embodiment, this first oxygen cyclone 818 of this process burner 80 and this second water vapour/carbon dioxide cyclone 888 are constructed such that the first oxygen and the second water vapour/carbon dioxide penetrate in the tangential direction of this first oxygen cyclone 818 and this second water vapour/carbon dioxide cyclone 888 respectively.
In another embodiment of the present invention, a kind of coal water slurry gasification furnace system that is applicable to coal water slurry gasification is provided, it is characterized in that comprising:
The process burner 10,80 of coal water slurry gasification of the present invention, and
Gasification furnace 1.
In another embodiment of the invention, the be applicable to process burner of coal water slurry gasification or the application that the furnace system of the coal water slurry gasification for coal water slurry gasification according to the present invention is produced at synthesis gas, reducing gases or fuel gas of the present invention are provided.
Below in conjunction with the drawings and specific embodiments, the novel process burner that is used for coal water slurry gasification provided by the invention is described in detail as follows, it is only for the present invention is further described, and should be appreciated that therefore it does not limit interest field of the present invention.
Embodiment 1
Go out as shown in Figure 1, a kind of novel process burner 10 that is used for coal water slurry gasification of the present invention be provided, specifically comprise:
The first oxygen channel 110 (also referred to as central oxygen passage 110), this first oxygen channel comprise the first oxygen channel entrance 112 and the first oxygen channel outlet 115; Water-coal-slurry passage 120, this water-coal-slurry passage comprises at least one water-coal-slurry feeder connection 122 and water-coal-slurry channel outlet 125; The second cooling water jecket 140, this second cooling water jecket comprise the second cooling water jecket entrance 142 and the second cooling water jecket outlet 144, the second cooling water jeckets 140 at spout 105 places to the reducing of cylinder center line; The second oxygen channel 130 (also referred to as outer epoxy passage 130), this second oxygen channel comprise the second oxygen channel entrance 132 and the second oxygen channel outlet 135.
Wherein, the first oxygen channel 110 is positioned at the centre of process burner 10, and at the first oxygen channel outlet 115 places, is to the cylinder of cylinder center line reducing; Water-coal-slurry passage 120 between the first oxygen channel 110 and the second cooling water jecket 140, and around the periphery of the first oxygen channel 110, and is to the circle ring column of cylinder center line reducing at water-coal-slurry channel outlet 125 places; The second cooling water jecket 140 is between water-coal-slurry passage 120 and the second oxygen channel 130, and around the periphery of water-coal-slurry passage 120; The second oxygen channel 130 is around the periphery of the second cooling water jecket 140, and at these second oxygen channel outlet, 135 places, is to the circle ring column of cylinder center line reducing.
Around the first cooling water jecket 150 of the second oxygen channel 130, this first cooling water jecket comprises the first cooling water jecket entrance 152 and the first cooling water jecket outlet 154, and the first cooling water jecket 150 at spout 105 places to the reducing of cylinder center line;
Coil in the cooling water coil 160 of the first cooling water jecket 150 peripheries, this cooling water coil comprises cooling water coil entrance 162 and cooling water coil outlet 164.
Wherein the first oxygen channel outlet 115, water-coal-slurry channel outlet 125, the second common formation spout 105 of oxygen channel outlet 135.
Section 166 expressions in Fig. 1 see through the view of the internal pipeline of cooling water coil 160, the surface view of the section 168 expression cooling water coils 160 in Fig. 1.
Embodiment 2
Still as shown in Figure 1; the head that is positioned at process burner at the outer surface of the cooling water coil 160 of the process burner 10 of embodiment 1 also is coated with high temperature resistant antiwear corrosion resistant enclosure 190; adopt the heat resistant and wear resistant corrosion-resistant material; as the wear-resistant ceramic layer; or adopt the materials such as Hastenoy C-22, UMCo-50 to carry out multiple protective, make process burner of the present invention more durable in use.
And the cooling water coil 160 of process burner 10 of the present invention is close to the first peripheral closely winding of cooling water jecket 150 of burner 10, is welded as a whole between each layer coil pipe simultaneously.
The cooling water coil 160 of burner head 105 and burner is selected wearability, resistance to sudden heating and kinds of anti-sulfur corrosion material preferably, and burner head 105 is selected as the wear-resistant ceramic layer, or adopts the materials such as HastenoyC-22, UMCo-50.Simultaneously, as shown in Figure 1, burner head protection layer 190 is lined with the heat resistant and wear resistant corrosion-resistant material, as the wear-resistant ceramic layer, or adopts the heat resistant and wear resistant corrosion-resistant materials well known in the art such as HastenoyC-22, UMCo-50, makes burner more durable in use.
Cooling water coil of the present invention is taked to be close to burner and closely is wound around, tightly weld between each layer coil pipe simultaneously, make it not stay gap, thereby avoided often having filled up between the cooling water coil of traditional GE process burner and burner the generation of flying dust and uncombusted coal slurry situation.
And, except outermost the first cooling water jecket 150 and the cooling water coil 160 that is wrapped in the first cooling water jecket 150 outsides, be provided with again outside the second cooling-water duct 140 between epoxy passage 130 and water-coal-slurry passage 120, add first, second cooling water jecket 140,150 inner unique cooling-water ducts, thereby make the burner temperature more even, temperature remains at a lower level, thereby has extended burner service life.
In addition, water-coal-slurry feeder connection 122 places of water-coal-slurry passage 120 that can also be in Fig. 1 are connected with water-coal-slurry mixed aerosol device 200, vertical cut-away view of its structure is shown in Figure 2, and Figure 10 is the schematic diagram that is provided with the coal water slurry gasification furnace system of water-coal-slurry mixed aerosol device 200, has wherein schematically shown the coal slurry gasifier 1 that is provided with coal water slurry process burner 10 and water-coal-slurry mixed aerosol device 200.
The connecting line of mixed aerosol device and process burner is the atomization coal water slurry pipeline installing for short as far as possible and do not have or few bend pipe as far as possible, the connecting line length of mixed aerosol device and process burner is in 0.8 meter, can be at 0.3~0.7 meter, perhaps at 0.4~0.6 meter.
Water-coal-slurry mixed aerosol device can adopt horizontal versions, also can adopt vertical form, is horizontal versions as shown in Figure 2 a, is vertical form as shown in Fig. 2 b~2d.Water-coal-slurry mixed aerosol device preferably adopts horizontal versions.
As shown in Figure 2 a-2d, at water-coal-slurry and high pressure CO 2At first entered water-coal-slurry mixed aerosol device 200 before entering water-coal-slurry passage 120, this water-coal-slurry mixed aerosol device 200 comprises pipe section 210 and premixer 220.
As shown in Figure 2 a-2d, water-coal-slurry mixed aerosol device 200 can adopt horizontal versions (as shown in accompanying drawing 2a), also can adopt (as shown in accompanying drawing 2b, 2c and the 2d) of vertical form, preferably adopt horizontal versions, and be vertical form as shown in accompanying drawing 2b, 2c and 2d.
Wherein, as shown in Figure 2 c, water-coal-slurry mixed aerosol device 200 and external CO 2Pipeline is connected in the mode of flange connect on the gas phase entrance 265 of pipe section of atomization mixed aerosol device.
, referring to Fig. 2 d, through the water-coal-slurry of atomization, from ellipse outlet 290, export water-coal-slurry mixed aerosol devices 200 and enter the ellipse atomization coal water slurry pipeline with same size and identical caliber (as the water-coal-slurry pipeline 122 of Fig. 1 and Fig. 4 or the water-coal-slurry pipeline 822 of Fig. 1 and Fig. 8) of flange connection with it.The connecting line of water-coal-slurry mixed aerosol device and process burner is the short as far as possible and bend pipe as far as possible less of atomization coal water slurry pipeline 122.
The connecting line length of preferred mixed aerosol device and process burner, can be at 0.3~0.7 meter, perhaps at 0.4~0.6 meter in 0.8 meter.Water-coal-slurry mixed aerosol device can adopt horizontal versions (as shown in accompanying drawing 2a), also can adopt vertical form, is vertical form as shown in accompanying drawing 2b, 2c and 2d.
Respectively referring to accompanying drawing 2a, 2b, 2c and 2d, the water-coal-slurry pipeline is connected on the water-coal-slurry entrance 265 of water-coal-slurry mixed aerosol device 200 in the mode of flange connect, water-coal-slurry enters water-coal-slurry passage 266 thus, enters premixer 220 after one section hole enlargement that is provided with tangential slot Y type hole 270; External CO 2Pipeline is connected on the gas phase entrance 265 of water-coal-slurry mixed aerosol device 200, from the CO of rear system in the mode of flange connect 2Enter thus gas phase channel 256, then by tangential slot Y type hole 270, tangentially enter premixer (also referred to as " primary atomization chamber ") 220, CO 2(or primary atomization chamber) 220 is oblique in premixer breaks up water-coal-slurry to be atomized into drop.
On premixer (or primary atomization chamber) 220 outer walls, symmetry is evenly equipped with four ultrasonic ultrasonic delay line memories 255, and ultrasonic wave makes water-coal-slurry and CO 2Fall apart into less drop and thinner gas bag, become atomization coal water slurry.
Referring to Fig. 2 e; it is according to the level of another kind of technique nozzle connection according to the present invention or the view in vertically disposed water-coal-slurry mixed aerosol device exit; wherein also be provided with diaphragm 258 between and supersonic generator 250 outside in the premixer 220 of water-coal-slurry mixed aerosol device 200, thereby avoid the damage of water-coal-slurry for supersonic generator 250.
In addition, atomization coal water slurry outlet 290 also can be circle, and the water-coal-slurry mixed aerosol device 200 of output enters the circular atomization coal water slurry pipeline 122,822 with same size and identical caliber of flange connection with it.
Atomization coal water slurry enters the ellipse atomization coal water slurry pipeline 122,822 with same size and identical caliber of flange connection with it from ellipse outlet 290 output water-coal-slurry mixed aerosol devices 200.
Atomization coal water slurry pipeline 122 connects in the flange mode with the 200 atomized liquid outlets 290 of mixed aerosol device, the connecting line of mixed aerosol device and process burner is the atomization coal water slurry pipeline installing for short as far as possible and do not have or few bend pipe as far as possible, and the connecting line length of mixed aerosol device and process burner is in 0.8 meter.
Wherein, this pipe section 210 and this premixer 220 share level or vertically disposed the first cylindrical shell 250, in the first cylindrical shell 250 inner concentric, the second cylindrical shell 260 is set, and the first end wall 240 that has sealing the first cylindrical shell 250 in the end of the premixer away from pipe section 210, have an outlet 290 in the center of the first end wall 240, itself and water-coal-slurry passage 120 link.
Pipe section 210 and premixer 220 are by to protruding level or the vertically disposed frustum 230 that advances of the second cylindrical shell 260, limiting, frustum 230 has annular opening 270 and enters for carbon dioxide between the first cylindrical shell 250 and the second cylindrical shell 260, frustum 230 has a circular outlet 280 and enters for water-coal-slurry in the center of the second cylindrical shell 260
Be defined as water-coal-slurry admission passage 266, the first cylindrical shells 250 and the second cylindrical shell 260 of concentric setting and the conical surface 230 of level or vertically disposed frustum 230 together with the second cylindrical shell 260 of the first cylindrical shell 250 and concentric setting and the table top 230 ' of level or vertically disposed frustum 230 " together be defined as carbon dioxide admission passage 256.
As shown in Figure 1, process burner 10 also comprises the first oxygen cyclone 118 and the second oxygen cyclone 138, and this first oxygen cyclone 118 and the second oxygen cyclone 138 lay respectively at the top of the reducing of the top of reducing of the first oxygen channel outlet 115 and the second oxygen channel outlet 135.
Another embodiment, wherein process burner 10 also is equipped with the first oxygen cyclone 118 and the second oxygen cyclone 138, this the first oxygen cyclone 118 and the second oxygen cyclone 138 lay respectively at the lower end (not shown) of the reducing of the lower end of reducing of the first oxygen channel outlet 115 and the second oxygen channel outlet 135, cyclone gets final product near being arranged on burner channel outlet or outlet, can be on reducing top, also can be in middle part and bottom.
Process burner of the present invention shown in Fig. 1 and Fig. 2; it is mainly by water-coal-slurry mixed aerosol device 200, central oxygen jet pipe 110, interior ring water-coal-slurry jet pipe 120, outer epoxy jet pipe 130, cyclone 118; 138, two cooling water jeckets 140,150, cooling water coil 160 and 190 combination of burner head protection layer are installed and are formed.
The second cooling water jecket 140 (cooling water jecket namely) is arranged between water-coal-slurry passage 120 (also referred to as interior ring water-coal-slurry jet pipe) and the second oxygen channel 130 (also referred to as outer epoxy jet pipe), the first cooling water jecket 150 (i.e. outer cooling water jecket) is arranged on the second oxygen channel 130 (also referred to as outer epoxy jet pipe) skin, and wraps outer epoxy jet pipe 130.Be outwards the high temperature resistant antiwear corrosion resistant enclosure 190 (also referred to as burner head protection layer) of cooling water coil 160 and burner head again, burner head protection layer 190 is outermost layer, is the high temperature resistant antiwear corrosion material.
As shown in Figure 7, be the profile of the first and second cooling water jeckets 140,150, the dotted line in arrow and chuck represents the glide path of cooling water.The built-in cooling-water duct of this cooling water jecket, make the first downward cooling burner head 105 that is heated the strongest of cooling water, wriggles along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top.Like this, make the easiest burner head 105 that is damaged by the high temperature heat etching obtain at first water quench when cooling water temperature is also very low, and then burner head 105 obtain effectively protection.
Water-coal-slurry mixed aerosol device 200 is installed at entrance 122 places at water-coal-slurry passage 120, made before water-coal-slurry enters process burner 10 high pressure CO that is introduced into premixer 220 and by the roughly outlet (hole) 280 of ellipse that the Y-piece wall that limits pipe section 210 and premixer 220 forms, is entered 2Carry out premixed.
Simultaneously, in the both sides of water-coal-slurry mixed aerosol device 200 premixers 220 or around the circumference of premixer's outer tube wall, ultrasonic unit 255 is installed.Hole 280 and the ultrasonic wave of the general toroidal that consists of the Y-piece wall help CO 2Mix with water-coal-slurry, reach the effect that namely realized primary atomization before entering water-coal-slurry passage 120.
After water-coal-slurry primary atomization device, in water-coal-slurry inside, be dispensed into CO 2, when water-coal-slurry sprays from process burner spout 105, because inside and outside differential pressure increases, CO 2Bubble sharply expands, and moment slightly dodges and quick-fried water-coal-slurry liquid exploded into more tiny drop, makes like this contact gear ratio surface area of water-coal-slurry liquid and oxygen larger, makes the gasification reaction of water-coal-slurry and oxygen rapider.Because the atomizing particle fineness is that liquid mist average grain diameter reduces than SMD, reduced diffusional resistance, make atomizing particle distribute and more be tending towards evenly, be the problem of combustion zone and partial oxygen surplus thereby alleviated.
In coal water slurry gasification technique of the present invention, the gasifying agent of employing is generally oxygen, by central oxygen passage 110 and annular space oxygen passage 130, enters burner 10, water-coal-slurry (or other fuel such as water-coal-slurry and admixture of gas, for example water-coal-slurry and CO 2Mixture) referring to " exploitation of Pneumatic type nozzle atomization mechanism research and coal-water-slurry gasification nozzle " P34 Fig. 4-6) enter burner 10 by water-coal-slurry passage 120, in the scope that course of reaction allows, regulation and control gasifying agent and water-coal-slurry and/or water-coal-slurry and CO 2The mixing ratio of mixture can make the combustion flame in burner exit (spout) 105 shorten to suitable length.
Central oxygen passage 110 refers to central oxygen jet pipe inner space; Water-coal-slurry passage 120 refers to the annular space space that central oxygen jet pipe outer wall and interior ring water-coal-slurry nozzle wall form; Annular space oxygen passage 130 is annular space spaces that interior cooling water jecket 140 outer walls and outer cooling water jecket 150 inwalls form.
In the present invention, central oxygen jet pipe 110, can be formed by centre pipe (being positioned at top) and center shower nozzle 115 (being positioned at bottom) two parts, affixed forming again after both by machinery, coordinating, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the center shower nozzle 115 that is easy to damage that is positioned at bottom.
In addition, also cyclone 118 can be installed between centre pipe (being positioned at top) and center shower nozzle 115 (being positioned at bottom), affixed forming again after also by machinery, coordinating between centre pipe and cyclone 118 and cyclone 118Yu center shower nozzle 115, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the center shower nozzle 115 that is easy to damage and/or the cyclone 118 that is positioned at bottom.
Perhaps, if need not to install cyclone 118, central oxygen jet pipe 110 also can shower nozzle 115 places, Shi Zai center has the cylindric pipeline of reducing, and it can be selected as required.
The top of centre pipe 110 can be sealed with blind plate by flange, and the top of centre pipe is provided with gasification agent inlet pipe 112.
Embodiment 3
Technique nozzle 10 as embodiment 1, wherein the pipeline at water-coal-slurry feeder connection 122 places is as shown in Fig. 3 a, pipeline at water-coal-slurry feeder connection 122 places is positioned at the tangential direction of water-coal-slurry passage 120, makes water-coal-slurry/carbon dioxide (primary atomization water-coal-slurry) enter water coal slurry ring-shaped passage 120 along the tangential direction of cylindric burner 10.
Equally, also can be as shown in 3b, the pipeline at water-coal-slurry feeder connection 122 places is positioned at the tangential direction of water-coal-slurry passage 120, and has two access roades 122.
In order further to strengthen the effect of the natural helical flow that is produced by the feed pipe guiding, the tangential direction pipeline that is positioned at water-coal-slurry passage 120 at water-coal-slurry feeder connection 122 places can have a plurality of access roades 122, as three, four, five or six, preferably be uniformly distributed (not shown) between each access road, as between have identical center angle.
The tube section of the access road 122 in Fig. 3 a, 3b can be as shown in Figure 4, cross section along the B-B line is oval, the width of the long d of the minor axis of access road pipe (being the horizontal direction caliber) and water-coal-slurry passage 120 (being central oxygen jet pipe 110 outer walls and the vertical range of interior ring water-coal-slurry jet pipe 120 inwalls) is identical, and the long D of the major axis of access road pipe (being the vertical direction caliber) is greater than the long d of the minor axis of access road pipe.
Tube section due to the access road 122 that adopts the present embodiment, water-coal-slurry tangentially enters the water-coal-slurry passage 120 of burner 10, therefore three way Burners that propose with respect to Chinese patent literature 95111750.5, the process burner of the present embodiment can reduce water-coal-slurry washing away central oxygen jet pipe 110 effectively.
Simultaneously, the tangential design that enters at a high speed the water-coal-slurry passage of this raw material makes water-coal-slurry form the helical flow of nature under the guiding of this passage, can form the eddy flow of nature after ejection burner 10 under the effect of oxygen flow, during water-coal-slurry ejection burner, just can reduce the water-coal-slurry particle direct projection that has little time to burn and leave fast combustion chamber and fall into the generation of the situation of shock chamber; Under the effect of oxygen flow, the water-coal-slurry atomization also can form better eddy flow.Like this, with respect to three way Burners that Chinese patent literature 95111750.5 proposes, process burner of the present invention can more effectively shorten the length of combustion flame, has reduced the ablation of flame to refractory brick, promoted simultaneously mixing and atomization of water-coal-slurry and oxygen, gasification efficiency more improved.
In the present invention, outer epoxy jet pipe 130, can be formed by outer shroud conduit (being positioned at top) and outer shroud shower nozzle 135 (being positioned at bottom) two parts, affixed forming again after both by machinery, coordinating, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the outer shroud shower nozzle 135 that is easy to damage that is positioned at bottom.Affixed forming again after both by machinery, coordinating.The top of outer shroud conduit is provided with gasification agent inlet pipe 132.
In addition, also cyclone 138 can be installed between outer shroud conduit (being positioned at top) and outer shroud shower nozzle 135 (being positioned at bottom), affixed forming again after also by machinery, coordinating between outer shroud conduit and cyclone 138 and cyclone 138 and outer shroud shower nozzle 135, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the outer shroud shower nozzle 135 that is easy to damage and/or the cyclone 138 that is positioned at bottom.
Perhaps, if need not to install cyclone 138, outer epoxy jet pipe 130 can be also that ring spray 135 place have the cylindric pipeline of reducing outside, and it can be selected as required.
The half-angle α of the interior contraction of the first oxygen channel outlet 115 (being the center shower nozzle) is 15-60 °, and its outside angle of inclination beta is 30-60 °; The outer angle of heel of the interior contraction half-angle γYu center shower nozzle of water-coal-slurry channel outlet 125 (being water-coal-slurry passage shower nozzle) is consistent, and its outer angle of heel τ is 20-80 °; The the second oxygen channel outlet i.e. interior contraction half-angle ε of outer annular space oxygen shower nozzle 135 is 20-75 °; (, referring to Fig. 1, wherein having marked technique nozzle α, β, γ, ε angle).
Fig. 5 a and 5b show the top view of cyclone 118,138, and Fig. 5 b is the front view of cyclone 118,138 sections.
Fig. 6 is the sectional view of the technique nozzle 10 of Fig. 1 according to the present invention along the A-A line, for the mixed aerosol effect of improving gasification burner tip 10 and the length that shortens combustion flame, respectively at the interior cyclone 118,138 that arranges of center oxygen nozzle 115 inner and outer rings oxygen nozzles 135.This cyclone 118,138 can be axial screw slot type (referring to Fig. 5 a and 5b), can be also axial rotary vane type.Be arranged at the cyclone 118 in center oxygen nozzle 115, have axial screw groove 118-2 on it, its external diameter equates with the internal diameter of center oxygen nozzle 115, and cooperation is installed in center shower nozzle 115; The center of cyclone is cylindrical cavity, and axle pivot internal diameter is 0.6-0.8 with the ratio of external diameter.Be arranged at the cyclone 138 in outer shroud oxygen nozzle 135, have axial screw groove 138-2 on it, its thickness equates substantially with the diameter of the circular ring pipe of outer shroud oxygen nozzle 135, and cooperation is installed in the circular ring pipe of outer shroud shower nozzle 135.Central oxygen and outer epoxy are by being separately positioned on the cyclone 118 in center oxygen nozzle 115 inner and outer rings oxygen nozzles 135,138 105 ejections of the spout from gasification burner tip 10, further improved the mixed aerosol effect of gasification burner tip 10 spout 105 place's oxygen, water-coal-slurry and/or carbon dioxide, and further shorten combustion flame to appropriate length, and then further avoid excessive ablation for coal slurry gasifier, extended the service life of coal slurry gasifier and process burner thereof.
Embodiment 4
Technique nozzle 10 as embodiment 1, can start from the entrance 122 of water-coal-slurry passage 120 in water-coal-slurry jet pipe/water-coal-slurry passage 120 built-in one as shown in Figure 9 helical form deflector 910, deflector is divided into the downward water-coal-slurry passage of tilting screw at a certain angle with whole water-coal-slurry jet pipe/water-coal-slurry passage 120, inclination angle is at 30-75 °, preferably at 35-70 °, more preferably inclination angle should be at 40-65 °, more preferably greater than 40 °.And along with helical form deflector 910 to downward-extension, inclination angle can be designed to slow increase, so the water-coal-slurry passage is restricted to the channel form under screw.
The inclination angle of helical form deflector 910 is unsuitable too small, if inclination angle is too small, water-coal-slurry easily precipitates in the water-coal-slurry passage, preferably along with helical form deflector 910 to downward-extension, inclination angle can be designed to slow increase, the form that water-coal-slurry passage 120 forms under screw.
Get final product around one to three circle under helical form deflector 910 screws of water-coal-slurry passage 120, preferred two to three circles, more preferably two circles get final product.
As shown in Fig. 3 a and 3b, after water-coal-slurry enters water coal slurry ring-shaped passage 120 along the tangential direction of the water-coal-slurry passage 120 of cylindric process burner 10, water-coal-slurry just can form better screw in the helical duct of this process burner 10, when water-coal-slurry ejection burner, can reduce the water-coal-slurry particle direct projection that has little time to burn and leave fast combustion chamber and fall into the generation of the situation of shock chamber; Simultaneously, water-coal-slurry under the effect of oxygen flow, makes the water-coal-slurry atomization and can form better eddy flow, thereby obtaining the gasification efficiency of better atomizing effect and Geng Gao, and the short flamed length that also can more effectively contract reduces washing away gasification furnace refractory brick.
this helical form deflector 910 can not start to arrange from the entrance 122 of water-coal-slurry passage 120 yet, but at water-coal-slurry jet pipe/water-coal-slurry passage 120 middle parts, start to arrange (not shown), spiral extends downward outlet 125 places of water-coal-slurry passage 120, make the spout 105 of water-coal-slurry from the outlet 125 eddy flow ejection process burners of water-coal-slurry passage 120, make water-coal-slurry mix and get final product better with outlet 115 and 135 oxygen that spray from central oxygen passage 110 and outer epoxy passage 130, thereby can reduce the water-coal-slurry particle direct projection that has little time to burn leaves fast combustion chamber and falls into the generation of the situation of shock chamber, water-coal-slurry is under the effect of oxygen flow simultaneously, make the water-coal-slurry atomization and can form better eddy flow, and then obtain the gasification efficiency of better atomizing effect and Geng Gao, short flamed length also can more effectively contract, minimizing is washed away gasification furnace refractory brick.Embodiment 5
As shown in Figure 8, provide the process burner 80 of another structure of the present invention, specifically comprised:
The first oxygen channel 810 (also referred to as central oxygen passage 810), the first oxygen channel comprise the first oxygen channel entrance 812 and the first oxygen channel outlet 815; The first water vapour/carbon dioxide passage 870, the first water vapours/carbon dioxide passage comprises the first water vapour/carbon dioxide feeder connection 872 and the first water vapour/carbon dioxide channel outlet 875; Water-coal-slurry passage 820, water-coal-slurry passage comprise at least one water-coal-slurry feeder connection 822 and water-coal-slurry channel outlet 825; The second water vapour/carbon dioxide passage 880, the second water vapours/carbon dioxide passage comprises the second water vapour/carbon dioxide feeder connection 882 and the second water vapour/carbon dioxide channel outlet 885; The second oxygen channel 830 (also referred to as outer epoxy passage 830), the second oxygen channel comprise the second oxygen channel entrance 832 and the second oxygen channel outlet 835.
Wherein, the first oxygen channel 810 is positioned at the centre of process burner 80, and at the first oxygen channel outlet 815 places, is to the cylinder of cylinder center line reducing; The first water vapour/carbon dioxide passage 870 between the first oxygen channel 810 and water-coal-slurry passage 820, and around the periphery of water-coal-slurry passage 820, and is to the circle ring column of cylinder center line reducing at the first water vapour/carbon dioxide channel outlet 875 places; The second water vapour/carbon dioxide passage 880 is between water-coal-slurry passage 820 and the second oxygen channel 830, and around the periphery of the second oxygen channel 830, and at the second water vapour/carbon dioxide channel outlet 885 places, be to the circle ring column of cylinder center line reducing.
Around the first cooling water jecket 850 of the second oxygen channel 830 bottoms, this first cooling water jecket comprises the first cooling water jecket entrance 852 and the first cooling water jecket outlet 854, and the first cooling water jecket 850 at spout 805 places to the reducing of cylinder center line;
Coil in the cooling water coil 860 of the first cooling water jecket 850 peripheries, this cooling water coil comprises cooling water coil entrance 862 and cooling water coil outlet 864.
Wherein the first oxygen channel outlet 815, water-coal-slurry channel outlet 825, the first water vapour/carbon dioxide channel outlet 875, the second water vapour/carbon dioxide channel outlet 885 and the second oxygen channel outlet 835 form spout 805 jointly.
Section 866 expressions in Fig. 8 see through the view of the internal pipeline of cooling water coil 860, the surface view of the section 868 expression cooling water coils 860 in Fig. 8.
The process burner of the coal water slurry gasification of the present embodiment has five runners, and successively to outermost one deck circulating line, in central tube and each layer circulating line, the medium of input is respectively oxygen, CO from central tube 2, water-coal-slurry, CO 2, oxygen.
Central oxygen passage 810 refers to central oxygen jet pipe inner space; The first water vapour/carbon dioxide passage 870 refers to the annular space space that central oxygen jet pipe outer wall and water-coal-slurry passage 820 inwalls form; Water-coal-slurry passage 820 refers to the first water vapour/carbon dioxide passage 870 outer walls and the annular space space that the second water vapour/carbon dioxide passage 880 inwalls form; The second water vapour/carbon dioxide passage 880 refers to water-coal-slurry passage 820 outer walls and the annular space space that the second oxygen channel/outer epoxy passage 830 inwalls form; The second oxygen channel/outer epoxy passage 830 refers to the annular space space that forms between the outer wall of the second water vapour/carbon dioxide passage 880 outer walls and process burner 10.
In the present invention, central oxygen jet pipe/central oxygen passage 810, can be formed by centre pipe (being positioned at top) and center shower nozzle 825 (being positioned at bottom) two parts, affixed forming again after both by machinery, coordinating, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the center shower nozzle 825 that is easy to damage that is positioned at bottom.Equally, central oxygen jet pipe/central oxygen passage 810 also can be by integrally formed.
Water-coal-slurry in central oxygen passage 810 peripheries penetrates at a certain angle from the outer shroud of central oxygen passage, center of impact oxygen and and oxygen mix.
Intermediate annular passage between annular water-coal-slurry runner 820 and central oxygen passage/central oxygen flow channel 810 (i.e. the first water vapour/carbon dioxide passage) 870 input carbon dioxide and/or water vapours; formed layer protecting film after carbon dioxide and/or water vapour ejection in burner outlet 805 short distances; between oxygen and pulverized fuel; thereby suppressed the damage of high exothermic reaction to burner, washed away as hyperthermia radiation, burn into product gas flow etc.At this, steam and/or carbon dioxide except the effect of regulating temperature, have also participated in gasification reaction.
Embodiment 6
Still as shown in Figure 8; the head that is positioned at process burner at the outer surface of the cooling water coil 860 of the process burner 80 of embodiment 5 also is coated with high temperature resistant antiwear corrosion resistant enclosure 890; adopt the heat resistant and wear resistant corrosion-resistant material; as the wear-resistant ceramic layer; or adopt the heat resistant and wear resistant corrosion-resistant materials well known in the art such as Hastenoy C-22, UMCo-50 to carry out multiple protective, make process burner of the present invention more durable in use.
And the cooling water coil 860 of process burner 80 of the present invention is close to the first peripheral closely winding of cooling water jecket 850 of burner 80, is welded as a whole between each layer coil pipe simultaneously.
The cooling water coil 860 of burner head 805 and burner is selected wearability, resistance to sudden heating and kinds of anti-sulfur corrosion material preferably, burner head 805 is selected as the wear-resistant ceramic layer, or adopts the heat resistant and wear resistant corrosion-resistant materials well known in the art such as HastenoyC-22, UMCo-50.Simultaneously, as shown in Figure 8, burner head protection layer 890 is lined with the heat resistant and wear resistant corrosion-resistant material, as the wear-resistant ceramic layer, or adopts the heat resistant and wear resistant corrosion-resistant materials well known in the art such as HastenoyC-22, UMCo-50, makes burner more durable in use.
Similar to Example 2, the cooling water coil of the present embodiment is also taked to be close to burner and closely is wound around, tightly weld between each layer coil pipe simultaneously, make it not stay gap, thereby avoided often having filled up between the cooling water coil of traditional GE process burner and burner the generation of flying dust and uncombusted coal slurry situation.
In addition, water-coal-slurry feeder connection 822 places of water-coal-slurry passage 820 that can also be in Fig. 8 are connected with water-coal-slurry mixed aerosol device 200, vertical cut-away view of its structure is shown in Figure 2, and Figure 10 is the schematic diagram that is provided with the coal water slurry gasification furnace system of water-coal-slurry mixed aerosol device 200, has wherein schematically shown the coal slurry gasifier 1 that is provided with coal water slurry process burner 80 and water-coal-slurry mixed aerosol device 200.
As shown in Figure 2, at water-coal-slurry and high pressure CO 2At first entered water-coal-slurry mixed aerosol device 200 before entering water-coal-slurry passage 820, this water-coal-slurry mixed aerosol device 200 comprises pipe section 210 and premixer 220.
Wherein, this pipe section 210 and this premixer 220 share level or vertically disposed the first cylindrical shell 250, in the first cylindrical shell 250 inner concentric, the second cylindrical shell 260 is set, and the first end wall 240 that has sealing the first cylindrical shell 250 in the end of the premixer away from pipe section 210, has an outlet 290 in the center of the first end wall 240, itself and water-coal-slurry passage 820 gas UNICOMs.
Pipe section 210 and premixer 220 are by to protruding level or the vertically disposed frustum 230 that advances of the second cylindrical shell 260, limiting, frustum 230 has annular opening 270 and enters for carbon dioxide between the first cylindrical shell 250 and the second cylindrical shell 260, frustum 230 has a circular outlet 280 and enters for water-coal-slurry in the center of the second cylindrical shell 260
Be defined as water-coal-slurry admission passage 266, the first cylindrical shells 250 and the second cylindrical shell 260 of concentric setting and the conical surface 230 of level or vertically disposed frustum 230 together with the second cylindrical shell 260 of the first cylindrical shell 250 and concentric setting and the table top 230 ' of horizontally disposed frustum 230 " together be defined as carbon dioxide admission passage 256.
As shown in Figure 8, process burner 80 also comprises the first oxygen cyclone 818 and the second oxygen cyclone 838, and this first oxygen cyclone 818 and the second oxygen cyclone 838 lay respectively at the lower end of the reducing of the lower end of reducing of the first oxygen channel outlet 815 and the second oxygen channel outlet 835.
Another embodiment, wherein process burner 80 also is equipped with the first oxygen cyclone 818 and the second oxygen cyclone 838, this the first oxygen cyclone 818 and the second oxygen cyclone 838 lay respectively at the top (not shown) of the reducing of the top of reducing of the first oxygen channel outlet 815 and the second oxygen channel outlet 835, cyclone gets final product near being arranged on burner channel outlet or outlet, can be on reducing top, also can be in middle part and bottom.
Process burner of the present invention 80 shown in Fig. 8 and Fig. 2 a-2d; it is mainly installed and is formed by water-coal-slurry mixed aerosol device 200, the first oxygen channel/central oxygen jet pipe 810, the first water vapour/carbon dioxide passage/interior ring water vapour/carbon dioxide jet pipe 870, the second oxygen channel/interior ring water-coal-slurry jet pipe 820, the second water vapour/carbon dioxide passage/outer shroud water vapour/carbon dioxide jet pipe 880, the second oxygen channel/outer epoxy jet pipe 830, cyclone 818,838, cooling water jecket 850, cooling water coil 860 and 890 combination of burner head protection layer.
Cooling water coil 860 is arranged on the second oxygen channel/outer epoxy jet pipe 830 skins, and cooling water jecket 850 is arranged on the outer field bottom of cooling water coil 860 and wraps the bottom of outer epoxy jet pipe 830 together with cooling water coil 860.Be outwards the high temperature resistant antiwear corrosion resistant enclosure 890 (also referred to as burner head protection layer) of parcel cooling water jecket 850 and burner head again, burner head protection layer 890 is outermost layer, is the high temperature resistant antiwear corrosion material.
Equally as shown in Figure 7, be the profile of cooling water jecket 850, the dotted line in arrow and chuck represents the glide path of cooling water.The built-in cooling-water duct of this cooling water jecket, make the first downward cooling burner head 805 that is heated the strongest of cooling water, wriggles along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top.Like this, make the easiest burner head 805 that is damaged by the high temperature heat etching obtain at first water quench when cooling water temperature is also very low, and then burner head 805 obtain effectively protection.
Water-coal-slurry mixed aerosol device 200 is installed at entrance 822 places at water-coal-slurry passage 820, made before water-coal-slurry enters process burner 10, be introduced into the high pressure CO that the outlet (hole) 280 of premixer 220 and the general toroidal that consists of the Y-piece wall that limits pipe section 210 and premixer 220 enters 2Carry out premixed.
Can be in the both sides of water-coal-slurry mixed aerosol device 200 premixers 220 or around the circumference of premixer's outer tube wall, ultrasonic unit 255 is installed.Hole 280 and the ultrasonic wave of the general toroidal that consists of the Y-piece wall help CO 2Mix with water-coal-slurry, reach the effect that namely realized primary atomization before entering water-coal-slurry passage 820.Fig. 2 e is according to the level of another kind of technique nozzle connection according to the present invention or the view in vertically disposed water-coal-slurry mixed aerosol device exit; wherein also be provided with diaphragm 258 between 220 outsides, premixer of water-coal-slurry mixed aerosol device and supersonic generator 255, thereby avoid the damage of water-coal-slurry for supersonic generator 250.
In addition, atomization coal water slurry outlet 290 can be ellipse, also can be circle, and the water-coal-slurry mixed aerosol device 200 of output enters the oval or circular atomization coal water slurry pipeline 122,822 with same size and identical caliber of flange connection with it.
After water-coal-slurry primary atomization device, in water-coal-slurry inside, be dispensed into CO 2, when water-coal-slurry sprays from process burner spout 805, because inside and outside differential pressure increases, CO 2Bubble sharply expands, and moment slightly dodges and quick-fried water-coal-slurry liquid exploded into more tiny drop, makes like this contact gear ratio surface area of water-coal-slurry liquid and oxygen larger, makes the gasification reaction of water-coal-slurry and oxygen rapider.Because the atomizing particle fineness is that liquid mist average grain diameter reduces than SMD, reduced diffusional resistance, make atomizing particle distribute and more be tending towards evenly, be the problem of combustion zone and partial oxygen surplus thereby alleviated.
In coal water slurry gasification technique of the present invention, the gasifying agent of employing is generally oxygen, by central oxygen passage 810 and annular space oxygen passage 830, enters burner 80, water-coal-slurry (or other fuel such as water-coal-slurry and admixture of gas, for example water-coal-slurry and CO 2Mixture) enter burner 80 by water-coal-slurry passage 820, in the scope that course of reaction allows, regulation and control gasifying agent and water-coal-slurry and/or water-coal-slurry and CO 2The mixing ratio of mixture can make the combustion flame in burner exit (spout) 805 to suitable length.
In a further embodiment, also can cyclone 818 be installed at centre pipe 810De center shower nozzle 815 places, affixed forming again after also by machinery, coordinating between cyclone 818Yu center shower nozzle 815, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the center shower nozzle 815 that is easy to damage and/or the cyclone 818 (referring to Fig. 8) that is positioned at bottom.
In another embodiment, also cyclone 818 can be installed between centre pipe (being positioned at top) and center shower nozzle 815 (being positioned at bottom), affixed forming again after also by machinery, coordinating between centre pipe and cyclone 818 and cyclone 818Yu center shower nozzle 815, as by being spirally connected, welding, the manner known in the art such as riveted joint connects, preferably by removably, connect, make and be convenient to change the center shower nozzle 815 that is easy to damage and/or cyclone 818 (not shown) that are positioned at bottom.
Perhaps, if need not to install cyclone 818, central oxygen jet pipe 810 also can shower nozzle 815 places, Shi Zai center has the cylindric pipeline of reducing, and it can be selected as required.
The top of centre pipe 810 can be sealed with blind plate by flange, and the top of centre pipe is provided with gasification agent inlet pipe 812.
Embodiment 7
Technique nozzle 80 as embodiment 5, wherein the pipeline at water-coal-slurry feeder connection 822 places is as shown in Fig. 3 a, pipeline at water-coal-slurry feeder connection 822 places is positioned at the tangential direction of water-coal-slurry passage 820, makes water-coal-slurry/carbon dioxide (primary atomization water-coal-slurry) enter water coal slurry ring-shaped passage 820 along the tangential direction of cylindric burner 80.
Equally, also can be as shown in 3b, the pipeline at water-coal-slurry feeder connection 822 places is positioned at the tangential direction of water-coal-slurry passage 820, and has two access roades 822.
In order further to strengthen the effect of the natural helical flow that is produced by the feed pipe guiding, the tangential direction pipeline that is positioned at water-coal-slurry passage 820 at water-coal-slurry feeder connection 822 places can have a plurality of access roades 822, as three, four, five or six, preferably be uniformly distributed (not shown) between each access road, as between have identical center angle.
The tube section of the access road 822 in Fig. 3 a, 3b can be as shown in Figure 4, the cross section of access road 822 is oval, the width of the long d of the minor axis of access road pipe (being the horizontal direction caliber) and water-coal-slurry passage 820 (i.e. the vertical range of the first water vapour/carbon dioxide passage 870 outer walls and water-coal-slurry jet pipe 820 inwalls of interior ring) is identical, and the long D of the major axis of access road pipe (being the vertical direction caliber) is greater than the long d of the minor axis of access road pipe.Wherein, the width of the long d of the minor axis of access road pipeline and water-coal-slurry passage (being central oxygen jet pipe outer wall and the vertical range of interior ring water-coal-slurry nozzle wall) is identical, can effectively reduce water-coal-slurry washing away the central oxygen jet pipe.
If the width of the long d of the minor axis of water-coal-slurry passage and water-coal-slurry passage is not identical, the excessive too small impact wear of high speed water coal slurry to the water-coal-slurry vias inner walls that all easily cause.
The tangential design that enters at a high speed the water-coal-slurry passage of this raw material simultaneously makes water-coal-slurry form the helical flow of nature under the guiding of this passage.It is because the coal slurry pipeline diameter is thicker that water-coal-slurry feeder connection pipe is designed to ellipse, its diameter is greater than the width (being the vertical range of central oxygen jet pipe outer wall and interior ring water-coal-slurry nozzle wall) of water-coal-slurry passage, the major axis of while water-coal-slurry passage is designed to identical with the coal slurry pipeline diameter, reduces the impact of water-coal-slurry pipeline diameter variation on the water-coal-slurry flow velocity as far as possible.
Tube section due to the access road 822 that adopts the present embodiment, water-coal-slurry tangentially enters the water-coal-slurry passage 820 of burner 80, therefore three way Burners that propose with respect to Chinese patent literature 95111750.5, the process burner of the present embodiment can reduce water-coal-slurry washing away central oxygen jet pipe 810 effectively.
Simultaneously, the tangential design that enters at a high speed the water-coal-slurry passage of this raw material makes water-coal-slurry form the helical flow of nature under the guiding of this passage, the ejection burner eddy flow that can form nature under the effect of oxygen flow after 80s, during water-coal-slurry ejection burner, just can reduce the water-coal-slurry particle direct projection that has little time to burn and leave fast combustion chamber and fall into the generation of the situation of shock chamber; Under the effect of oxygen flow, the water-coal-slurry atomization also can form better eddy flow.Like this, with respect to three way Burners that Chinese patent literature 95111750.5 proposes, process burner of the present invention can more effectively shorten the length of combustion flame, has reduced the ablation of flame to refractory brick, promoted simultaneously mixing and atomization of water-coal-slurry and oxygen, gasification efficiency more improved.
The half-angle α of the interior contraction of outer shroud shower nozzle 835 is 15-60 °, and its outside angle of inclination beta is 30-60 °; The outer angle of heel of the interior contraction half-angle γYu center shower nozzle of interior ring spray 815 is consistent, and its outer angle of heel τ is 20-80 °; The interior contraction half-angle ε of outer shroud shower nozzle 835 is 20-75 ° (not shown α, β, γ, τ and ε angle, see also Fig. 1 in Fig. 8).
Fig. 5 a and 5b show the top view of cyclone 818,888, and Fig. 5 b is the front view of cyclone 818,888 sections.
, do not repeat them here with reference to embodiment 3 for the structure of cyclone 818,888.central oxygen and outer shroud water vapour/carbon dioxide are by being separately positioned in center oxygen nozzle 815, cyclone 818 in the shower nozzle 885 of the second water vapour/carbon dioxide passage (being outer shroud water vapour/carbon dioxide passage) 880, 888 805 ejections of the spout from gasification burner tip 80, gasification burner tip 80 spout 805 place's oxygen have further been improved, the mixed aerosol effect of water-coal-slurry and/or water vapour/carbon dioxide, simultaneously, formed layer protecting film after carbon dioxide and/or water vapour ejection in burner outlet 805 short distances, between oxygen and pulverized fuel, thereby suppressed the damage of high exothermic reaction to burner, as hyperthermia radiation, corrosion, product gas flow is washed away etc.
Embodiment 8
Technique nozzle 80 as embodiment 5, can start from the entrance 822 of water-coal-slurry passage 820 in water-coal-slurry jet pipe/water-coal-slurry passage 820 built-in one as shown in Figure 9 helical form deflector 910, deflector is divided into the downward water-coal-slurry passage of tilting screw at a certain angle with whole water-coal-slurry jet pipe/water-coal-slurry passage 820, inclination angle is at 30-75 °, preferably at 35-70 °, more preferably inclination angle should be at 40-65 °, more preferably greater than 40 °.And along with helical form deflector 910 to downward-extension, inclination angle can be designed to slow increase, so the water-coal-slurry passage is restricted to the channel form under screw.
The inclination angle of helical form deflector 910 is unsuitable too small, if inclination angle is too small, water-coal-slurry easily precipitates in the water-coal-slurry passage, preferably along with helical form deflector 910 to downward-extension, inclination angle can be designed to slow increase, the form that water-coal-slurry passage 820 forms under screw.
Get final product around one to three circle under helical form deflector 910 screws of water-coal-slurry passage 820, preferred two to three circles, more preferably two circles get final product.
As shown in Fig. 3 a and 3b, after water-coal-slurry enters water coal slurry ring-shaped passage 820 along the tangential direction of the water-coal-slurry passage 820 of cylindric process burner 80, water-coal-slurry just can form better screw in the helical duct of this process burner 80, when water-coal-slurry ejection burner, can reduce the water-coal-slurry particle direct projection that has little time to burn and leave fast combustion chamber and fall into the generation of the situation of shock chamber; Simultaneously, water-coal-slurry under the effect of oxygen flow, makes the water-coal-slurry atomization and can form better eddy flow, thereby obtaining the gasification efficiency of better atomizing effect and Geng Gao, and the short flamed length that also can more effectively contract reduces washing away gasification furnace refractory brick.
this helical form deflector 910 can not start to arrange from the entrance 822 of water-coal-slurry passage 820 yet, but at water-coal-slurry jet pipe/water-coal-slurry passage 820 middle parts, start to arrange (not shown), spiral extends downward outlet 825 places of water-coal-slurry passage 820, make the spout 805 of water-coal-slurry from the outlet 825 eddy flow ejection process burners of water-coal-slurry passage 820, make water-coal-slurry mix and get final product better with outlet 815 and 835 oxygen that spray from central oxygen passage 810 and outer epoxy passage 830, thereby can reduce the water-coal-slurry particle direct projection that has little time to burn leaves fast combustion chamber and falls into the generation of the situation of shock chamber, water-coal-slurry is under the effect of oxygen flow simultaneously, make the water-coal-slurry atomization and can form better eddy flow, and then obtain the gasification efficiency of better atomizing effect and Geng Gao, short flamed length also can more effectively contract, minimizing is washed away gasification furnace refractory brick.
Embodiment 9
Any one process burner 10,80 that is used for coal water slurry gasification in embodiment 1~8 is arranged on as shown in figure 10 coal slurry gasifier 1 system that has formed with the process burner for coal water slurry gasification of the present invention.
Preferably, as shown in figure 10, water-coal-slurry and carbon dioxide first carried out the primary atomization of water-coal-slurry carbon dioxide through water-coal-slurry mixed aerosol device 200 before entering water-coal-slurry passage 120,820.
Certainly, water-coal-slurry and carbon dioxide also can carry out the primary atomization of water-coal-slurry carbon dioxide and directly enter water-coal-slurry passage 120,820 without water-coal-slurry mixed aerosol device 200 before entering water-coal-slurry passage 120,820.
Also be provided with diaphragm between 220 outsides, premixer of water-coal-slurry mixed aerosol device 200 and supersonic generator 250.
Process burner for coal water slurry gasification of the present invention and comprise that its coal water slurry gasification system has the following advantages:
1) before water-coal-slurry enters burner, be introduced into premixer and the high pressure CO that is entered by Y type hole 2Carry out premixed, Y type hole and ultrasonic wave help CO 2Mix with water-coal-slurry, reach the effect of first atomization.After the first atomizer of water-coal-slurry, in water-coal-slurry inside, be dispensed into CO 2, when water-coal-slurry sprayed from the burner outlet, because inside and outside differential pressure increases, the CO2 bubble sharply expands, and slight sudden strain of a muscle of moment is quick-fried exploded into more tiny drop with liquid, and larger with oxygen contact gear ratio surface area like this, gasification reaction is rapider.The atomizing particle fineness is that liquid mist average grain diameter SMD is little, and diffusional resistance is less, make atomizing particle distribute and more be tending towards evenly, and be the problem of combustion zone and partial oxygen surplus thereby alleviated.
2) at the burner head of each oxygen channel and/or the burner head of water vapour/carbon dioxide passage, cyclone is set, and the built-in helical duct design in the water-coal-slurry passage, make oxygen and the primary atomization water-coal-slurry of ejection form spiral helicine eddy flow, be conducive to the even mixing of water-coal-slurry particle and oxygen, optimize and improved atomizing angle and the length of flame of burner, be conducive to improve the mixed aerosol effect of burner, eddy flow has also extended the time of staying of water-coal-slurry particle in combustion chamber simultaneously, and then improved gasification efficiency, also reduced washing away gasification furnace refractory brick, extended the service life of gasification furnace.
The CO that 3) often will produce in a large number in Chemical Manufacture 2Enter atmosphere, the present invention can be with these CO 2Recycle, as the first atomization gas of water-coal-slurry, while CO 2Air inlet can be conducive to gasification reaction and carry out to the direction that generates CO.So not only reduce the discharging of greenhouse gases, and improved the output of available gas, advantageously protected environment.
4), at both sides or the uniform two or four ultrasonic unit that is equipped with of periphery of water-coal-slurry mixed aerosol device premixer, make CO 2Minute bubbles distribute thinner more evenly, help CO 2Be mixed to get more evenly with water-coal-slurry, better atomization after water-coal-slurry ejection burner is provided.
5) water-coal-slurry enters the water coal slurry ring-shaped passage along the tangential direction of cylindric burner, water-coal-slurry feeder connection tube section is oval, the width of the long d of the minor axis of its pipeline and water-coal-slurry passage is (as the vertical range of central oxygen jet pipe outer wall and interior ring water-coal-slurry nozzle wall, or the vertical range of the first water vapour/carbon dioxide channel outer wall and the water-coal-slurry nozzle wall of interior ring) identical, can effectively reduce water-coal-slurry washing away the central oxygen jet pipe.
Simultaneously, the tangential high speed of raw material enters the water-coal-slurry passage and makes water-coal-slurry form helical flow under the guiding of this passage, and after the ejection burner, under the effect of oxygen flow, the water-coal-slurry atomization also can form better eddy flow.Can more effectively shorten the length of combustion flame, reduce the ablation of flame to refractory brick, promote simultaneously mixing and atomization of water-coal-slurry and oxygen, gasification efficiency is more improved.
6) cooling water jecket in the present invention is built-in with cooling-water duct; make the first downward cooling burner head that is heated the strongest of cooling water; wriggle along cooling-water duct afterwards upwards cooling to carried out by the little part of temperatures involved from bottom to top; like this; make when cooling water temperature is also very low the easiest burner head that is damaged by the high temperature heat etching obtain at first the high efficiency cooling of low-temperature cooling water, the burner head obtains protection effectively.
7) cooling-water duct is set outside in addition again between epoxy and water-coal-slurry passage, add the cooling-water duct of cooling water jecket inside, make like this burner temperature more even, temperature remains at a lower level, thereby further extends burner service life.And burner head and burner cooling water coil are selected wearability, resistance to sudden heating and anti-S corrosivity material preferably, and burner head protection layer is lined with the heat resistant and wear resistant corrosion-resistant material, and multiple protective makes burner more durable in use.
8) cooling water coil of the present invention is close to burner and closely is wound around, tightly weld between each layer coil pipe simultaneously, make it not stay gap, thereby avoid between cooling water coil and burner being full of the generation of flying dust and uncombusted coal slurry situation, guarantee the cooling effectiveness of cooling water coil.
9) also be provided with diaphragm between the outside, premixer of water-coal-slurry mixed aerosol device of the present invention and supersonic generator, thereby avoid the damage of water-coal-slurry for supersonic generator.
Embodiment 10
Utilize any one process burner 10 for coal water slurry gasification in the embodiment of the present invention 1~8,80 and utilize in the embodiment of the present invention 9 on the coal slurry gasifier 1 that is arranged on as shown in figure 10 the coal water slurry gasification furnace system that has formed with the process burner for coal water slurry gasification of the present invention, for the synthesis of the production of gas, reducing gases or fuel gas.
Utilize in the embodiment of the present invention 9 furnace system of the coal water slurry gasification with the process burner for coal water slurry gasification of the present invention that forms on the coal slurry gasifier 1 that is arranged on as shown in figure 10 to produce synthesis gas, the indexs such as size distribution of the water-coal-slurry of wherein using are as follows:
Size distribution (being the standard screen percent of pass, mass percent):
8 orders (2380 μ m) 100%,
14 orders (1410 μ m) 98~100%,
40 orders (420 μ m) 90~95%,
200 orders (76 μ m) 60~70%,
325 orders (44 μ m) 25~35%;
Concentration: 58~65wt%;
Viscosity: 700~1000cP (utilizing fixed its viscosity of viscosity in aqueous coal slurries instrumentation);
pH:7~9;
Temperature :≤60 ℃.
In water-coal-slurry primary atomization device, the use amount of carbon dioxide is that the ratio of volume flow and water-coal-slurry flow changes between 1/200 to 10/50, and visual concrete condition is adjusted.
The pressure of carbon dioxide pipeline changes between oxygen pipeline and water-coal slurry pipe linear pressure, the pressure of carbon dioxide pipeline is good a little less than oxygen pipeline pressure, because the pressure rating of different gasification furnaces is different, the visual concrete condition of its pressure is adjusted.
The coal water slurry gasification system that utilizes the process burner for coal water slurry gasification of the present invention and comprise it has advantages of and does not repeat them here as described in example 9 above for the synthesis of the production of gas, reducing gases or fuel gas.
Although various embodiment of the present invention is described in context by the specific embodiment, the present invention is not limited to this.Therefore, it is the restriction of the scope of the invention that above description should be used as, and scope of the present invention is limited by appended claim.It will be appreciated by those skilled in the art that in the situation that do not deviate from spirit of the present invention and can make various changes and change to the present invention, it all will fall within protection scope of the present invention.

Claims (19)

1. process burner (10,80) that is used for coal water slurry gasification comprising:
The first oxygen channel (110,810), described the first oxygen channel comprise the first oxygen channel entrance (112,812) and the first oxygen channel outlet (115,815);
Water-coal-slurry passage (120,820), described water-coal-slurry passage comprise at least one water-coal-slurry feeder connection (122,822) and water-coal-slurry channel outlet (125,825);
The second oxygen channel (130,830), described the second oxygen channel comprise the second oxygen channel entrance (132,832) and the second oxygen channel outlet (135,835);
The first cooling water jecket (150,850), described the first cooling water jecket comprise the first cooling water jecket entrance (152,852) and the first cooling water jecket outlet (154,854);
Cooling water coil (160,860), described cooling water coil comprise cooling water coil entrance (162,862) and cooling water coil outlet (164,864);
it is characterized in that, described the first oxygen channel (110, 810) be positioned at described process burner (10, 80) centre, described water-coal-slurry passage (120, 820) be positioned at described the first oxygen channel (110, 810) with described the second oxygen channel (130, 830) between around described the first oxygen channel (110, 810) periphery, described the second oxygen channel (130, 830) around described water-coal-slurry passage (120, 820) periphery, described cooling water jecket (150, 850) around described the second oxygen channel (130, 830) periphery, described cooling water coil (160, 860) coil in described cooling water jecket (150, 850) periphery,
Described at least one water-coal-slurry feeder connection (122,822) be positioned at described water-coal-slurry passage (120,820) tangential direction, described at least one water-coal-slurry feeder connection (122,822) be selected from one, two, three or four, and plural described water-coal-slurry feeder connection is symmetrical.
2. the process burner for coal water slurry gasification (10 according to claim 1,80), it is characterized in that further comprising high temperature resistant antiwear corrosion resistant enclosure (190,890), wherein said high temperature resistant antiwear corrosion resistant enclosure (190,890) is around described cooling water coil (160,860) periphery, and the spout (105,805) that extends longitudinally to described process burner (10,80) is located.
3. the process burner for coal water slurry gasification according to claim 1 and 2 (10), it is characterized in that further comprising the second cooling water jecket (140), described the second cooling water jecket comprises the second cooling water jecket entrance (142) and the second cooling water jecket outlet (144), described the second cooling water jecket is positioned between described water-coal-slurry passage (120) and described the second oxygen channel (130), and around the periphery of described water-coal-slurry passage (120), be respectively arranged with the first cooling-water duct and the second cooling-water duct in described the first cooling water jecket (150) and described the second cooling water jecket (140), respectively from described the first cooling water jecket entrance (152) and the second cooling water jecket entrance (142), described the first cooling-water duct and the second cooling-water duct first extend downward described the first cooling water jecket (150) and described the second cooling water jecket (140) bottom, and then with " Z " font, repeatedly wriggle upwards until arrive described the first cooling water jecket outlet (154) and the second cooling water jecket outlet (144).
4. the process burner for coal water slurry gasification according to claim 1 and 2 (80) is characterized in that further comprising:
The first water vapour/carbon dioxide passage (870), described the first water vapour/carbon dioxide passage comprise the first water vapour/carbon dioxide feeder connection (872) and the first water vapour/carbon dioxide channel outlet (875), and
The second water vapour/carbon dioxide passage (880), described the second water vapour/carbon dioxide passage comprise the second water vapour/carbon dioxide feeder connection (882) and the second water vapour/carbon dioxide channel outlet (885),
Wherein said the first water vapour/carbon dioxide passage (870) is positioned between described the first oxygen channel (810) and described water-coal-slurry passage (820), and around the periphery of described water-coal-slurry passage (820), described the second water vapour/carbon dioxide passage (880) is positioned between described water-coal-slurry passage (820) and described the second oxygen channel (830), and around the periphery of described the second oxygen channel (830).
5. the process burner for coal water slurry gasification (10 according to claim 1,80), it is characterized in that described the first oxygen channel (110,810) in described the first oxygen channel outlet (115,815) locate to be cylinder to the reducing of cylinder center line, described water-coal-slurry passage (120,820) in described water-coal-slurry channel outlet (125,825) locate to be circle ring column to the reducing of cylinder center line, and described the second oxygen channel (130,830) locate to be circle ring column to the reducing of cylinder center line in described the second oxygen channel outlet (135,835).
6. the process burner for coal water slurry gasification (10 according to claim 4,80), it is characterized in that described the first water vapour/carbon dioxide passage (870) locates to be annulus post to the reducing of cylinder center line in described the first water vapour/carbon dioxide channel outlet (875), and described the second water vapour/carbon dioxide passage (880) locates to be the circle ring column to the reducing of cylinder center line in described the second water vapour/carbon dioxide channel outlet (885).
7. the process burner for coal water slurry gasification according to claim 1 (10,80), is characterized in that further comprising water-coal-slurry mixed aerosol device (200), and described water-coal-slurry mixed aerosol device (200) comprising:
Pipe section (210) and premixer (220),
Wherein, described pipe section (210) and described premixer (220) share level or vertically disposed the first cylindrical shell (250), in described the first cylindrical shell (250) inner concentric, the second cylindrical shell (260) is set, and the first end wall (240) that has described the first cylindrical shell of sealing (250) in the end of the described premixer away from described pipe section (210), has an outlet (290) in the center of described the first end wall (240), itself and described water-coal-slurry passage (120) UNICOM
Described pipe section (210) and described premixer (220) are by to protruding level or the vertically disposed frustum (230) that advances of described the second cylindrical shell (260), limiting, described frustum (230) has annular opening (270) between described the first cylindrical shell (250) and described the second cylindrical shell (260), described frustum (230) has a circular outlet (280) in the center of described the second cylindrical shell (260)
Be defined as water-coal-slurry admission passage (266) together with described second cylindrical shell (260) of described the first cylindrical shell (250) and concentric setting and the table top (230 ') of level or vertically disposed described frustum (230), described the first cylindrical shell (250) and described second cylindrical shell (260) of concentric setting and the conical surface of level or vertically disposed described frustum (230) are defined as carbon dioxide admission passage (256) together with (230 ")
The carbon dioxide conduit of the pipe section (210) of the gas phase entrance of described carbon dioxide admission passage (256) and external described water-coal-slurry mixed aerosol device (200) links.
8. the process burner for coal water slurry gasification (10 according to claim 7; 80); it is characterized in that being positioned on outside described the first cylindrical shell (250) in described premixer (220) and be symmetrically arranged with supersonic generator (255), be provided with layer protecting film (258) between the described premixer (220) of described water-coal-slurry mixed aerosol device (200) and described supersonic generator (255).
9. the process burner for coal water slurry gasification (10 according to claim 7,80), it is characterized in that being provided with loop-shaped ultrasound generator (255) around described premixer (220) outside described first cylindrical shell (250).
10. the described process burner for coal water slurry gasification of according to claim 7~9 any one (10,80), is characterized in that the direction of described annular opening (270) is towards centre, described premixer (220).
11. the process burner for coal water slurry gasification (10 according to claim 1,80), it is characterized in that from described water-coal-slurry passage (120,820) entrance (122,822) start, at the downward spiral in the inside of described water-coal-slurry passage (120,820), helical form deflector (910) is set.
12. according to claim 1~2,5 or 7~9 described process burners for coal water slurry gasification of any one (10), it is characterized in that further comprising the first oxygen cyclone (118) and the second oxygen cyclone (138), and described the first oxygen cyclone (118) and the second oxygen cyclone (138) lay respectively at described the first oxygen channel outlet (115) reducing top or be positioned at the lower end of reducing and the top of the reducing of described the second oxygen channel outlet (135) or be positioned at the lower end of reducing.
13. the process burner for coal water slurry gasification according to claim 4 (80), it is characterized in that further comprising the first oxygen cyclone (818) and the second water vapour/carbon dioxide cyclone (888), and described the first oxygen cyclone (818) and the second water vapour/carbon dioxide cyclone (888) lay respectively at described the first oxygen channel outlet (815) reducing lower end or be positioned at the top of reducing and the lower end of the reducing of described the second water vapour/carbon dioxide channel outlet (885) or be positioned at the top of reducing.
14. the process burner for coal water slurry gasification (10 according to claim 1,80), it is characterized in that described water-coal-slurry feeder connection (122,822) is along the section of the B-B face short ellipse of the long horizontal direction diameter (d) of diameter (D) in vertical direction.
15. the process burner for coal water slurry gasification according to claim 12 (10), is characterized in that described the first oxygen cyclone (118) and described the second oxygen cyclone (138) are configured so that the first oxygen and the second oxygen penetrate in the tangential direction of described the first oxygen cyclone (118) and described the second oxygen cyclone (138) respectively.
16. the process burner for coal water slurry gasification according to claim 13 (80), is characterized in that described the first oxygen cyclone (818) and described the second water vapour/carbon dioxide cyclone (888) is configured so that the first oxygen and the second water vapour/carbon dioxide penetrate in the tangential direction of described the first oxygen cyclone (818) and described the second water vapour/carbon dioxide cyclone (888) respectively.
17. the described process burner for coal water slurry gasification (10 of any one according to claim 7~9,80), it is characterized in that the gas phase entrance of described carbon dioxide admission passage (256) links in the mode that flange is connected with the described carbon dioxide conduit of the pipe section (210) of external described water-coal-slurry mixed aerosol device (200).
18. a coal water slurry gasification furnace system that is applicable to coal water slurry gasification is characterized in that comprising: the process burner (10,80) of the described coal water slurry gasification of claim 1~17 any one, and
Gasification furnace (1).
19. the described process burner for coal water slurry gasification of according to claim 1~17 any one (10,80) or the furnace system of the coal water slurry gasification for coal water slurry gasification according to claim 18 are in the application of for the synthesis of gas, reducing gases or fuel gas, producing.
CN2010105137002A 2010-10-13 2010-10-13 Process nozzle and system for gasifying water coal slurry and application thereof CN102031152B (en)

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CN102659075B (en) * 2012-05-15 2014-05-14 上海锅炉厂有限公司 Load-controllable multichannel liquid fuel gasification burner
CN104214775A (en) * 2014-09-12 2014-12-17 青岛润鑫伟业科贸有限公司 Steam atomization type coal water slurry furnace
CN104373935B (en) * 2014-10-11 2016-09-07 科林未来能源技术(北京)有限公司 A kind of powdered coal burner for airflow bed gasification furnace
CN104533377A (en) * 2014-11-06 2015-04-22 新奥气化采煤有限公司 Nozzle and gasification method thereof
CN105132038B (en) * 2015-09-30 2018-11-02 西安航天源动力工程有限公司 A kind of modified coal water slurry process burner
CA3000899A1 (en) * 2015-10-12 2017-04-20 Shell Internationale Research Maatschappij B.V. Cooling device for a burner of a gasification reactor
CN109810729B (en) * 2019-03-01 2019-10-15 中国东方电气集团有限公司 A kind of integrated water/oil/coke/coal slurry process burner with air film protection
CN110577846B (en) * 2019-09-12 2021-02-05 杨建平 Combustion system and burner

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