CN104312634B - A kind of combined type Hot oxygen nozzle and its application - Google Patents
A kind of combined type Hot oxygen nozzle and its application Download PDFInfo
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- CN104312634B CN104312634B CN201410527711.4A CN201410527711A CN104312634B CN 104312634 B CN104312634 B CN 104312634B CN 201410527711 A CN201410527711 A CN 201410527711A CN 104312634 B CN104312634 B CN 104312634B
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- outer shroud
- jet pipe
- hot oxygen
- fuel
- gasifying agent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The invention discloses a kind of combined type Hot oxygen nozzle and its application, the Hot oxygen nozzle is mainly made up of three groups of gasifying agent passages, three groups of fuel channels and cooling system, and each passage is coaxially disposed, and is attached by flange.The combined type Hot oxygen nozzle that the present invention is provided can put the carbon-containing fuels such as combusting coal water slurry, fine coal, biomass at low temperature, simplify gasification furnace ignition process.The setting of annular space and the hot oxygen of center two-way not only enhances fuel atomizing effect, so that mass-and heat-transfer effect and chemical reaction rate are improved, the adjustable extent of gasifying agent and fuel is increased, and can be matched to form suitable flow field with body of heater according to the arrangement of nozzle more conveniently.The present invention has the advantages that atomization is excellent, efficiency of carbon con version is high, applied widely, long service life, with very wide application prospect.
Description
Technical field
The invention belongs to coal gasification field, be related to a kind of novel combined Hot oxygen nozzle, more particularly, to water-coal-slurry and
The carbonaceous material such as fine coal vaporizing system is for synthesis gas (CO+H2)。
Background technology
Coal gasification is the important channel developed clean coal technology.Wherein, entrained flow bed gasification technology is because with coal adaptability
By force, production capacity and gasification efficiency high the advantages of, worldwide obtained it is rapid popularization and be widely applied.According to feed
The difference of mode, airflow bed gasification furnace can be divided into two classes：One class is dry method feed, and coal dust is directly air conveying to nozzle,
The type of furnace is represented as Shell；It is another kind of for wet method feed, water-coal slurry pump is delivered to into nozzle, the type of furnace is represented as OMB and Texaco.Its
In, nozzle is the indispensable critical component of two kinds of type of furnaces, and its life-span and function directly determine the peace of airflow bed gasification furnace
Stablize full long-term operation.
Furnace temperature is risen to more than 1000 DEG C and constant temperature initially with pre- hot nozzle by coal slurry gasifier ignition process, then is changed
Technique nozzle is fed intake.Powder coal gasification furnace (by taking Shell as an example) is first lighted a fire by ignition burner, then by the nozzle that goes into operation by gasification furnace
High-temperature high-pressure state is preheating to, is finally started technique nozzle and is fed intake.In ignition process, the two is required to consume substantial amounts of
Energy lifting fire box temperature, furthermore, because need repeatedly to change nozzle in ignition process, therefore its operation is relative complex, opens
The car time is longer, is unfavorable for the continuous and steady operation of device in Chemical Manufacture.
Gasification nozzle should ensure that preferable atomizing effect promotes the mixing of fuel and gasifying agent, match with body of heater again
Suitable flow field is formed, and then forms suitable Temperature Distribution, reach protection nozzle, the purpose of refractory brick.Chinese patent
Hot oxygen nozzle disclosed in 102977926A and 102767827A is respectively suitable for the carbon-containing fuels such as solid powder fuel and water-coal-slurry,
Both of which leads to hot oxygen using annular space, and the structure of the logical fuel in center is capable of achieving the direct-fire to fuel, although the hot oxygen of high speed exists
To a certain extent can with the atomizing effect of enhanced fuel, but, because only that annular space hot oxygen all the way, so, gasifying agent and fuel
The adjustable extent of flow is narrower, is unfavorable for the long period stability operation of gasification furnace.
The content of the invention
In view of problem above, the present invention provides a kind of combined type Hot oxygen nozzle and its application in gasification furnace, for
Airflow bed gasification furnace of the carbonaceous material such as water-coal-slurry or fine coal for raw material, the nozzle can simplify the driving of existing gasification process
And operation；Relative to existing nozzle, the Hot oxygen nozzle adopts annular space and the hot oxygen of center two-way, by high temperature compared with low velocity center
Hot oxygen carries out premixing with medium ring fuel, has both enhanced the mixing of fuel and gasifying agent, has tentatively improve fuel temperature, will not also
Larger abrasion is produced to jet pipe, the hot oxygen of outer shroud of high temperature and high speed is consumingly sheared mist to the medium ring fuel through premixing
Change, and can rapidly light fuel, it is long by adjusting outer shroud, center fuel flow and gasifying agent flow and hot oxygen chamber
Degree, can be adjusted to the length of the temperature of hot oxygen and speed and hot oxygen flame 22 (as shown in Figure 1), four He of outer shroud pipeline
The change of five head construction of outer shroud pipeline can change the width of flame, therefore, the setting of annular space and the hot oxygen of center two-way both increased
The strong atomization of nozzle, increases the adjustable extent of gasifying agent and fuel again, such that it is able to the arrangement according to nozzle, compared with
Easily to match to form suitable flow field with body of heater.
Realize the technical scheme of the object of the invention：
A kind of combined type Hot oxygen nozzle, the combined type Hot oxygen nozzle include the outer ring spray for sequentially coaxially arranging from outside to inside
Guan Yi, outer shroud jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four, outer shroud jet pipe five, core jet pipe, and gasifying agent passage, fuel
Passage, hot oxygen chamber and cooling system；
Outer shroud gasifying agent passage that the gasifying agent passage is made up of the outer shroud jet pipe one and the outer shroud jet pipe two, institute
State medium ring gasifying agent passage and the outer shroud jet pipe five and the center that outer shroud jet pipe three and the outer shroud jet pipe four are constituted
The internal ring gasifying agent passage composition that jet pipe is constituted；
Outer shroud fuel channel that the fuel channel is made up of the outer shroud jet pipe two and outer shroud jet pipe three, the outer ring spray
The center fuel passage composition that the medium ring fuel channel and the core jet pipe that Guan Si and outer shroud jet pipe five are constituted is constituted；It is described
Outer shroud jet pipe four is recessed in the end of the Hot oxygen nozzle to ensure the gas in medium ring fuel channel exit and center fuel passage
Body medium is sufficiently mixed；
The head of the outer shroud jet pipe two, outer shroud jet pipe three and core jet pipe adopt straight tube structure, and vertically with
Spray nozzle front end keeps same indent, the hot oxygen cavity space enough to ensure hot oxygen；
The cooling system includes cooling coil and cooling chamber, and the cooling coil is symmetricly set in along the core jet pipe
The head of the combined type Hot oxygen nozzle, the cooling chamber are coaxially disposed on the outside of the head of the outer shroud pipeline one.
Cooling chamber is connected with cooling coil, and coolant flows into Jing coil pipes outflow again after cooling chamber.
The hot oxygen chamber includes the hot oxygen chamber of outer shroud and central hot oxygen chamber；The hot oxygen chamber of the outer shroud is by described outer
Ring spray pipe one, outer shroud jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four are formed at the head of the combined type Hot oxygen nozzle, described
Central hot oxygen chamber is formed at the head of the combined type Hot oxygen nozzle by the outer shroud jet pipe five and the core jet pipe.
It is outer shroud combustion that the length of the hot oxygen chamber of the outer shroud is indent t1 of outer shroud jet pipe two and outer shroud jet pipe three
Material 1～5 times of passage equivalent diameter, it is center combustion that the length of the central hot oxygen chamber be indent t2 of core jet pipe
1～6 times of material passage equivalent diameter.
The head of the outer shroud jet pipe four adopts straight tube structure or tapered configuration；The head of the outer shroud jet pipe five is adopted
Straight tube structure or tapered configuration, to 0～20mm of contract；Also, the head of the outer shroud jet pipe four and the outer shroud jet pipe
One head keeps concordant.
The head of the outer shroud jet pipe four adopt tapered configuration when, flare bevel angle α be 45～80 °, contract angle θ be 45～
80°；
When the head of the outer shroud jet pipe five adopts tapered configuration, flare oblique angle γ is 45～80 °, and contract angle δ is 45
～80 °.
The contract angle beta of the head of the outer shroud jet pipe one is 30～80 °.
Flare oblique angle is the angle of jet pipe outer rim and nozzle face, and contract angle is jet pipe inner edge and nozzle centre axis
Angle.
The outer shroud jet pipe one, outer shroud jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four, outer shroud jet pipe five, core jet pipe are equal
Arranged by flange coaxial, between each jet pipe, ensure concentricity by double-deck six pieces of uniform locating pieces.
Gasification dosage into outer shroud gasifying agent passage and medium ring gasifying agent passage accounts for the 80～95% of gasifying agent total amount altogether,
The gasification dosage of wherein outer shroud and medium ring gasifying agent passage is consistent, internal ring gasifying agent passage account for gasifying agent total amount 5～
20%；It is 2～20% that in outer shroud fuel channel, fuel flow rate accounts for outer shroud and the ratio of medium ring gasifying agent total amount, center fuel passage
It is 2～20% that middle fuel flow rate accounts for the ratio of internal ring gasification agent flux.
The gasifying agent flow velocity of the outer shroud gasifying agent passage and medium ring gasifying agent passage is equal, is 0～50m/s, described
In outer shroud fuel channel, fuel flow rate is 0～50m/s, the exit carbonaceous material flow velocity of the medium ring fuel channel is 0.1～
The flow velocity of 1.0m/s, the hot oxygen chamber of outer shroud and the hot gasifying agent of central hot oxygen chamber is respectively 20～600m/s and 20～250m/
s；
Fuel in outer shroud fuel channel and center fuel passage selected from natural gas, methane, propane, synthesis gas, oven gas,
One or more in periodic off-gases, the fuel in medium ring fuel channel in water-coal-slurry, fine coal, natural gas, oven gas one
Plant or several.
The Hot oxygen nozzle is arranged on airflow bed gasification furnace by the application of any of the above-described described combined type Hot oxygen nozzle
On, one or more nozzles are set at the top of body of heater or in certain plane of body of heater periphery or multiple planes, for water coal
Slurry or fine coal prepare synthesis gas for raw material, at the gasification of production synthesis ammonia, methanol, combined cycle generation, sponge iron or rubbish
Reason.
A kind of gasification furnace containing any of the above-described Hot oxygen nozzle, the top of the gasification furnace or one of body of heater periphery
One or more described Hot oxygen nozzles are provided with plane or multiple planes.
The Hot oxygen nozzle of the present invention can put the carbon-containing fuels such as combusting coal water slurry, fine coal, biomass at low temperature, so as to simplification
Gasification furnace ignition process.The setting of annular space and the hot oxygen of center two-way not only enhances fuel atomizing effect so that mass-and heat-transfer
Effect and chemical reaction rate are improved, and increase the adjustable extent of gasifying agent and fuel, such that it is able to according to spray
The arrangement of mouth, conveniently matches to form suitable flow field with body of heater.The present invention has that atomization is excellent, efficiency of carbon con version
The advantages of high, applied widely, long service life, with very wide application prospect.
Description of the drawings
Fig. 1 is the agent structure sectional view of the combined type Hot oxygen nozzle of embodiment 1；
Fig. 2 is the head construction sectional view of the combined type Hot oxygen nozzle of embodiment 1.
Symbol description
1 cooling coil；2 locating pieces；3 outer shroud jet pipes one；4 outer shroud jet pipes two；
5 outer shroud jet pipes three；6 outer shroud jet pipes four；7 outer shroud jet pipes five；8 core jet pipes；
9 flanges；10 medium ring gasifying agent passages；11 medium ring fuel channels；12 internal ring gasification agent inlets；
13 outer shroud fuel inlets；14 outer shroud gasification agent inlets；The outlet of 15 medium ring fuel channels 20；
16 outer shroud gasifying agent passages；17 medium ring gasifying agent passages；18 internal ring gasifying agent passages；
19 center fuel passages；20 medium ring fuel channels；21 outer shroud fuel channels；
22 hot oxygen flames；The hot oxygen chamber of 23 outer shrouds；24 central hot oxygen chambers；
The head of 25 outer shroud jet pipes four；The head of 26 outer shroud jet pipes five；The hot oxygen outlet of 27 annular spaces；
The head of 28 outer shroud jet pipes one；29 cooling chambers.
Specific embodiment
Below, with embodiment further illustrating present invention, but protection scope of the present invention is not limited in implementing
Example.Other changes that those skilled in the art is made in the case of without departing substantially from spirit and scope of the present invention and
Modification, is included within the scope of the present invention.
Fig. 1 is the structural representation of combined type Hot oxygen nozzle of the present invention, and Fig. 2 is combined type heat oxygen nozzle head structural representation
Figure.Hot oxygen nozzle of the present invention includes outer shroud jet pipe 1, outer shroud jet pipe 24, outer shroud jet pipe 35, outer shroud jet pipe 46, outer
Ring spray pipe 57, core jet pipe 8 and cooling system, each jet pipe are connected and are coaxially disposed using flange successively, by double between jet pipe
Six pieces of uniform locating piece 2 of layer ensure concentricity.
Cooling system is made up of cooling coil 1 and cooling chamber 29.Cooling chamber is coaxially disposed in one head 28 of outer shroud pipeline
Outside.Into after cooling chamber 29, Jing cooling coils 1 flow out coolant again.
The head of outer shroud jet pipe 24, outer shroud jet pipe 35 and core jet pipe 8 adopt straight tube structure, and vertically with nozzle
Front end keeps certain indent, so as to form outer with outer shroud jet pipe 1 and outer shroud jet pipe 46 and outer shroud jet pipe 57 respectively
The hot oxygen chamber 23 of ring and central hot oxygen chamber 24.
1～5 times for 21 equivalent diameter of outer shroud fuel channel of length t1 of the hot oxygen chamber of outer shroud 23, central hot oxygen chamber
1～6 times of 19 equivalent diameter of fuel channel centered on length t2.
The head 25 of outer shroud jet pipe 46 adopts straight tube structure or tapered configuration, and its head 28 with outer shroud jet pipe 1 is protected
Maintaining an equal level neat, flare bevel angle α during tapered configuration being adopted for 45～80 °, contract half angle θ is 45～80 °；Outer shroud jet pipe 57
Head 26 adopts straight tube structure or tapered configuration, to 0～20mm of contract, adopts flare oblique angle γ during tapered configuration for 45
～80 °, contract half-angle δ is 45～80 °；The contract angle beta of the head 28 of outer shroud jet pipe 1 is 30～80 °.
Embodiment 1
Described Hot oxygen nozzle is installed in vertical top of gasification furnace, with water-coal-slurry that solid content is 61% as fuel, with
99.8% oxygen be gasifying agent, the methane with 99% as combustion gas, water-coal-slurry flow be 10kg/h, combustion gas：Gasifying agent=10%,
Oxygen flow is 4.8Nm3/ h, vapor pressure is normal pressure, and refractory liner adopts refractory brick, and gasification temperature is for about 1300 DEG C, gasification
Room is highly 2.2m, and vaporizer internal diameter is 0.3m.
Water-coal-slurry enters medium ring fuel channel from medium ring fuel inlet, and three tunnels of oxygen point are respectively by outer shroud, medium ring and internal ring
Gasification agent inlet enters outer shroud gasifying agent passage, medium ring gasifying agent passage and internal ring gasifying agent passage, each passage oxygen flow
Ratio is 45：45：10, methane point two-way enters outer shroud and center fuel passage by outer shroud and center fuel entrance respectively, each logical
Road ratio is 9：1.When total oxygen demand is burnt completely with respect to methane, required oxygen is excessive in stoichiometry, and excessive oxygen is in hot oxygen
It is heated to about 1500 DEG C to flow out from hot oxygen chamber outlet in chamber.The oxygen gas flow rate of outer shroud, medium ring and internal ring gasifying agent passage
30m/s is, methane gas speed is 20m/s in outer shroud and center fuel passage, and water-coal-slurry exit velocity is in medium ring fuel channel
The hot oxygen gas flow rate of 0.3m/s, annular space and central hot oxygen chamber outlet is for about 200m/s and about 400m/s respectively.
Ignition phase, lights central hot oxygen first, then recycles the hot oxygen of central hot oxygen point combustion annular space.Internal ring fuel channel
In carbonaceous material enter nozzle after first with central hot oxygen occur premixing, temperature of charge raise, after delivery nozzle be subject to high temperature
The hot oxygen of annular space of high speed consumingly shears atomization, is ignited rapidly, and in nozzle generating unit divided combustion and gasification reaction.Work as stove
When temperature rise is to about 1000 DEG C or more, methane supply can be cut off, Hot oxygen nozzle can be used according to conventional gasification process nozzle.It is real
Test result to show, the hot oxygen that the nozzle is formed can directly put combusting coal water slurry, the flame forms of formation are uniform, stable, same reaction
Under time, the efficiency of carbon con version of feed coal is compared with about 2 percentage points of room temperature oxygen jet mean height.
If occur the damages such as cinder notch slagging scorification, wall dross in actual production process in gasification furnace, can cut again
Enter outer shroud or center fuel passage methane, light hot oxygen flame, slagging scorification is eliminated by adjusting hot oxygen flame.In coal slurry feed
When there is fluctuation or needing to improve produce load, it is also possible to the optimization of oxygen coal ratio is realized by adjusting hot oxygen flame temperature.
The carbonaceous materials such as combined type Hot oxygen nozzle of the present invention, water-coal-slurry are adopted in examples detailed above in relatively low burner hearth
At a temperature of can complete gasify furnace igniting, greatly simplified the ignition process of airflow bed gasification furnace, save for gasification furnace
The a large amount of fuel for heating up and gasifying agent.High-temperature oxygen jet flame can not only significantly improve heat and mass speed, and then improve
The efficiency of carbon con version of fuel, and for the damage occurred in actual production can also play the function of improvement.
Although the foregoing describing the specific embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of the principle and essence of the present invention, various changes or modifications, but these changes can be made to these embodiments
Protection scope of the present invention is each fallen within modification.
Claims (7)
1. a kind of combined type Hot oxygen nozzle, it is characterised in that the combined type Hot oxygen nozzle includes sequentially coaxially setting from outside to inside
The outer shroud jet pipe one put, outer shroud jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four, outer shroud jet pipe five, core jet pipe, and gasification
Agent passage, fuel channel, hot oxygen chamber and cooling system；
It is outer shroud gasifying agent passage that the gasifying agent passage is made up of the outer shroud jet pipe one and the outer shroud jet pipe two, described outer
Medium ring gasifying agent passage and the outer shroud jet pipe five and the core jet pipe that ring spray pipe three and the outer shroud jet pipe four are constituted
The internal ring gasifying agent passage composition of composition；
Outer shroud fuel channel that the fuel channel is made up of the outer shroud jet pipe two and outer shroud jet pipe three, the outer shroud jet pipe four
The center fuel passage composition that the medium ring fuel channel constituted with outer shroud jet pipe five and the core jet pipe are constituted；The outer shroud
Jet pipe four is recessed in the end of the Hot oxygen nozzle；
The head of the outer shroud jet pipe two, outer shroud jet pipe three and core jet pipe adopt straight tube structure, and vertically with nozzle
Front end keeps same indent；
The cooling system includes cooling coil and cooling chamber, and the cooling coil is symmetricly set in described along the core jet pipe
The head of combined type Hot oxygen nozzle, the cooling chamber are coaxially disposed on the outside of the head of the outer shroud pipeline one；
The hot oxygen chamber includes the hot oxygen chamber of outer shroud and central hot oxygen chamber；The hot oxygen chamber of the outer shroud is by the outer shroud jet pipe
First, outer shroud jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four are formed at the head of the combined type Hot oxygen nozzle, the central hot
Oxygen chamber is formed at the head of the combined type Hot oxygen nozzle by the outer shroud jet pipe five and the core jet pipe；
Length t1 of the hot oxygen chamber of the outer shroud is 1～5 times of the outer shroud fuel channel equivalent diameter, the central hot oxygen chamber
Length t2 of room is 1～6 times of the center fuel passage equivalent diameter；
The head of the outer shroud jet pipe four adopts straight tube structure or tapered configuration；The head of the outer shroud jet pipe five adopts straight tube
Structure or tapered configuration, to 0～20mm of contract；Also, the head of the outer shroud jet pipe four and the outer shroud jet pipe one
Head keeps concordant.
2. combined type Hot oxygen nozzle according to claim 1, it is characterised in that the head of the outer shroud jet pipe four is using gradually
During shrinking structure, flare bevel angle α is 45～80 °, and contract angle θ is 45～80 °；
The head of the outer shroud jet pipe five adopt tapered configuration when, flare oblique angle γ be 45～80 °, contract angle δ be 45～
80°。
3. combined type Hot oxygen nozzle according to claim 1, it is characterised in that the interior receipts of the head of the outer shroud jet pipe one
Contracting angle beta is 30～80 °.
4. according to the arbitrary described combined type Hot oxygen nozzle of claims 1 to 3, it is characterised in that the outer shroud jet pipe one, outer shroud
Jet pipe two, outer shroud jet pipe three, outer shroud jet pipe four, outer shroud jet pipe five, core jet pipe are arranged by flange coaxial, between each jet pipe
Ensure concentricity by double-deck six pieces of uniform locating pieces.
5. combined type Hot oxygen nozzle according to claim 4, it is characterised in that into outer shroud gasifying agent passage and medium ring gas
The gasification dosage of agent passage accounts for the 80～95% of gasifying agent total amount altogether, wherein the gasification dosage of outer shroud and medium ring gasifying agent passage
It is consistent, internal ring gasifying agent passage accounts for the 5～20% of gasifying agent total amount；In outer shroud fuel channel, fuel flow rate accounts for outer shroud with
The ratio of ring gasifying agent total amount be 2～20%, in center fuel passage fuel flow rate account for internal ring gasification agent flux ratio be 2～
20%.
6. combined type Hot oxygen nozzle according to claim 4, it is characterised in that the outer shroud gasifying agent passage and medium ring gas
The gasifying agent flow velocity of agent passage is equal, is 0～50m/s, in the outer shroud fuel channel fuel flow rate be 0～50m/s, institute
The exit carbonaceous material flow velocity for stating medium ring fuel channel is 0.1～1.0m/s, the hot oxygen chamber of outer shroud and central hot oxygen chamber heat
The flow velocity of state gasifying agent is respectively 20～600m/s and 20～250m/s；
Fuel in outer shroud fuel channel and center fuel passage selected from natural gas, methane, propane, synthesis gas, oven gas, speed to put
One or more in gas, the fuel in medium ring fuel channel selected from water-coal-slurry, fine coal, natural gas, the one kind in oven gas or
It is several.
7. the application of the arbitrary described combined type Hot oxygen nozzle of claim 1～6, it is characterised in that the Hot oxygen nozzle is pacified
It is mounted on airflow bed gasification furnace, one or more are arranged at the top of body of heater or in certain plane of body of heater periphery or multiple planes should
Nozzle, for preparing synthesis gas, production synthesis ammonia, methanol, combined cycle generation, sponge iron as raw material with water-coal-slurry or fine coal
Or the gasification process of rubbish.
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| CN201410527711.4A CN104312634B (en) | 2014-10-09 | 2014-10-09 | A kind of combined type Hot oxygen nozzle and its application |
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| CN201410527711.4A CN104312634B (en) | 2014-10-09 | 2014-10-09 | A kind of combined type Hot oxygen nozzle and its application |
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| CN104312634B true CN104312634B (en) | 2017-03-29 |
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| EP3611242A4 (en) * | 2017-04-14 | 2021-01-13 | Changzheng Engineering Co., Ltd. | Gasification burner |
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| CN105038857B (en) * | 2015-08-26 | 2017-05-31 | 上海泽玛克敏达机械设备有限公司 | The multifunctional nozzle and its fixed bed slag gasification furnace of fixed bed slag gasification furnace |
| CN105112104B (en) * | 2015-09-14 | 2017-09-22 | 西北化工研究院 | It is a kind of for multi-channel nozzle of polynary slurry gasification reactor and application thereof |
| CN105694981B (en) * | 2016-02-19 | 2019-02-05 | 新奥科技发展有限公司 | A kind of gasifying furnace nozzle and gasification furnace |
| CN107129833B (en) * | 2017-06-23 | 2024-03-29 | 航天长征化学工程股份有限公司 | Annular pulverized coal cavity |
| CN108913215A (en) * | 2018-08-06 | 2018-11-30 | 唐山科源环保技术装备有限公司 | Remove ammonia and the technique for carrying out innocuously transformation processing in producer gas |
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| JP2011208929A (en) * | 2010-03-31 | 2011-10-20 | Hitachi Ltd | Backfire detecting method of gas turbine combustor |
| CN102767827A (en) * | 2012-07-27 | 2012-11-07 | 上海锅炉厂有限公司 | Combined-type thermal-oxidation igniting process nozzle for gasifying solid powder fuel |
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| EP3611242A4 (en) * | 2017-04-14 | 2021-01-13 | Changzheng Engineering Co., Ltd. | Gasification burner |
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| CN104312634A (en) | 2015-01-28 |
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