CN104560213B - A kind of water-coal-slurry and natural gas combined vaporizing nozzle - Google Patents
A kind of water-coal-slurry and natural gas combined vaporizing nozzle Download PDFInfo
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- CN104560213B CN104560213B CN201310500577.4A CN201310500577A CN104560213B CN 104560213 B CN104560213 B CN 104560213B CN 201310500577 A CN201310500577 A CN 201310500577A CN 104560213 B CN104560213 B CN 104560213B
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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
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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
- C10J1/00—Production of fuel gases by carburetting air or other gases without pyrolysis
- C10J1/20—Carburetting gases other than air
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The present invention relates to a kind of water-coal-slurry and natural gas combined vaporizing nozzle, including fire rod, igniter fuel gas central tube, interior oxygen endless tube, water-coal-slurry endless tube, natural gas endless tube, outer oxygen endless tube and the cooling ring vessel being sequentially coaxially arranged from the inside to the outside.Water-coal-slurry endless tube lower end is downwardly extending water-coal-slurry-natural gas hybrid chamber, and the lower end of natural gas endless tube is connected with the outer wall of water-coal-slurry-natural gas hybrid chamber bottom, natural gas spout is provided with water-coal-slurry-natural gas hybrid chamber, for natural gas endless tube by natural gas spout with being connected inside water-coal-slurry-natural gas hybrid chamber, water-coal-slurry-natural gas hybrid chamber bottom is provided with mixture spout.The axle of multiple natural gas spouts not water-coal-slurry-natural gas hybrid chamber side wall into circumference radially.The equipment is applied to carry out combined vaporizing to water-coal-slurry and natural gas, improves the ratio of hydrogen and carbon monoxide in cold gas efficiency and product, reduces the CO2 emission in synthesis gas preparation process.
Description
Technical field
The present invention relates to it is a kind of water-coal-slurry and natural gas are subjected to combined vaporizing when the gasification furnace that uses be fed nozzle, belong to
Equipment for gasification technical field.
Background technology
Water-coal-slurry is to mix the fluid fuel that merga pass Physical Processing obtains by coal, water and additive with certain proportion, by
Northern and west area is distributed in mostly in coal resources in China, is transported the coal in the North to the South for a long time, the general layout that Xi Meidong is adjusted adds transport
And operation costs, and water-coal-slurry can realize totally-enclosed long distance delivery, can reduce transport and the operation costs of coal, therefore water
The industry application of coal slurry technology receives significant attention.
Coal gasification is a kind of mode of coal processing in existing coal chemical technology, and it is oxygen, vapor etc. using coal as raw material
Combustible constituent in coal is converted into the mistake of gaseous fuel or synthesis gas as gasifying agent by gas by chemically reacting at high temperature
Journey, the direct product of coal gasification mainly have carbon monoxide, carbon dioxide, hydrogen and a small amount of methane, hydrogen sulfide etc..Water-coal-slurry gas
Change technology is a kind of more water-coal-slurry processing and utilization method of Recent study, and what China realized industrial applications earliest is
Texaco coal slurry gasifiers, its gasification are：Water-coal-slurry is crushed in the presence of high speed oxygen by nozzle, is atomized penetrating
Gasification furnace, oxygen and water-coal-slurry are in stove by high temperature action, rapid experience preheating, moisture evaporation, the dry distillation of coal, volatile matter cracking
The physics of burning and a series of complex such as carbon gasification, chemical reaction, ultimately produce with carbon monoxide, hydrogen, carbon dioxide and
Vapor is wet gas, slag and the unreacted carbon of main component；These products flow out reaction zone downwardly together, enter
Enter to gasify the shock chamber of furnace bottom, slag and carbon through quenching, solidification after be trapped within water, slag ladle is finally fallen into, through deslagging system
System regular discharge, wet gas then obtain the coal gas of cleaning after the processing of coal gas cooling and purifying system is entered.
The core technology of coal slurry gasifier is gasification nozzle, and existing Texaco gasification furnaces need first to before check
Pre- hot nozzle is installed on gasification furnace, after lighting pre- hot nozzle completion baker, then is quickly unloaded pre- hot nozzle and is installed rapidly
Upper feed nozzle carries out follow-up water-coal-slurry feed gasification；But above-mentioned technique is in the pre- hot nozzle of removal and installation feed spray
Easily the volume of generation combustion gas, the leakage problem of oxygen, and pre- hot nozzle and feed nozzle is big during mouth, temperature is high,
Personal injury easily is caused to operating personnel.In order to solve the above problems, Chinese patent literature CN202509052U discloses one
The combining nozzle of kind water-coal-slurry or coal dust gasification, including middle oxygen passage, lead to gasification furnace chamber；Feed intake passage, leads to gasification
Furnace chamber and middle oxygen passage periphery extend；Annular space oxygen passage, lead to gasification furnace chamber and in the outer of the passage that feeds intake
Zhou Yanshen, wherein feeding intake is provided with the first cooling water jecket between passage and annular space oxygen passage, annular space oxygen passage periphery is provided with second
Cooling water jecket；And the protection sleeve pipe of ignitor and ignitor, it is arranged at the outside of the passage that feeds intake.The combining nozzle
High speed water-coal-slurry or coal dust can be avoided to wash away ignitor, also improve what water-coal-slurry or coal dust in the passage that feeds intake sprayed
Uniformity, reduce the inclined spray phenomenon of nozzle.
Above-mentioned combining nozzle can realize continuous ignition and the gasification of water-coal-slurry, without changing nozzle, substantially increase gasification
The security and economy of device production run.But the cold gas efficiency of above-mentioned coal water slurry gasification is low, and by above-mentioned water coal
When slurry gasification product prepares the products such as follow-up methanol or artificial oil as raw material, due to hydrogen and an oxygen in coal water slurry gasification product
The ratio for changing carbon is too low, it is necessary to increase conversion process by part carbon monodixe conversion is hydrogen to improve hydrogen and carbon monoxide
Ratio, the complexity of technique is so not only increased, and conversion process produces substantial amounts of CO2, it is net by coal gas desulfurization decarburization
The a large amount of CO discharged after change2Greenhouse gases also pollute environment.
Applicant attempts to improve hydrogen in cold gas efficiency and gasification product by adjusting the species of coal water slurry gasification raw material
The ratio of gas and carbon monoxide, but use the combining nozzle of said structure can not be adjusted to the species of gasified raw material.
The content of the invention
The technical problems to be solved by the invention are that prior art has a coal water slurry gasification cold gas efficiency low, hydrogen in product
The ratio of gas and carbon monoxide is low, needs transformed processing could be as subsequent product after improving the ratio of hydrogen and carbon monoxide
Synthetic raw gas uses, and conversion process not only increases process complexity, and produces a large amount of CO2Greenhouse gases, although
Applicant attempts to overcome disadvantages mentioned above by adjusting the species of coal water slurry gasification raw material, but existing nozzle arrangements can not expire
Sufficient above-mentioned requirements；And then a kind of adjustable gasified raw material species is proposed, so as to improve coal water slurry gasification cold gas efficiency and hydrogen
With the water-coal-slurry and natural gas combined vaporizing nozzle of carbon monoxide ratio.
In order to solve the above technical problems, the invention provides a kind of water-coal-slurry and natural gas combined vaporizing nozzle, including：
Fire rod, igniter fuel gas central tube, interior oxygen endless tube, water-coal-slurry endless tube, the day being sequentially coaxially arranged from the inside to the outside
Right compression ring pipe, outer oxygen endless tube and cooling ring vessel；
The igniter fuel gas central tube top is provided with fuel gas inlet, bottom is provided with fuel gas spout；
The interior oxygen endless tube top is provided with interior oxygen import, bottom is provided with interior oxygen spout；
The water-coal-slurry endless tube top is provided with water-coal-slurry import, and the natural gas endless tube top is provided with natural gas and entered
Mouthful；
The outer oxygen endless tube top is provided with outer oxygen import, bottom is provided with outer oxygen spout；
Cooling medium inlet and cooling medium outlet are provided with the cooling ring vessel；
Water-coal-slurry-natural gas hybrid chamber, in the outer oxygen endless tube, from the lower end of the water-coal-slurry endless tube to downward
Stretch to be formed, the water-coal-slurry-natural gas hybrid chamber bottom is provided with mixture spout；
The lower end of the natural gas endless tube is connected with the outer wall of the water-coal-slurry-natural gas hybrid chamber, the water coal
Natural gas spout is provided with slurry-natural gas hybrid chamber, the natural gas endless tube passes through the natural gas spout and the water coal
It is connected inside slurry-natural gas hybrid chamber.
The water-coal-slurry-natural gas hybrid chamber is located in the natural gas endless tube, the lower end of the natural gas endless tube and institute
The outer wall for stating water-coal-slurry-natural gas hybrid chamber bottom is connected.
The mixture notch setting is in the bottom of the water-coal-slurry-natural gas hybrid chamber.
The water-coal-slurry-natural gas hybrid chamber is made up of the necking at two and the tubular structure at middle part, the contracting on top
Mouth is gradually wealthy from top to bottom, and the necking of bottom is tapered from top to bottom.
The top and middle part of the water-coal-slurry-natural gas hybrid chamber are respectively arranged with multiple natural gas spouts, multiple
Water-coal-slurry described in the gas spraying opening's edge-even circumferential formed by natural gas hybrid chamber side wall is set, multiple natural gases
The axle of spout not the water-coal-slurry-natural gas hybrid chamber side wall into circumference radially.
Multiple natural gas spouts tilt in the counterclockwise direction along clockwise direction or, and multiple described natural
The axle of gas blowout mouth and the water-coal-slurry-natural gas hybrid chamber side wall into the radial direction of circumference into 5-85 ° of angle.
The water-coal-slurry import is arranged on the upper end of the water-coal-slurry endless tube, and the Imported gas is arranged on described natural
The upper end of compression ring pipe.
The fuel gas inlet is arranged on the upper end of the igniter fuel gas central tube, and the fuel gas notch setting is in institute
State the bottom of igniter fuel gas central tube；The interior oxygen import is arranged on the upper end of the interior oxygen endless tube, and the interior oxygen spout is set
Put in the bottom of the interior oxygen endless tube；The outer oxygen import is arranged on the upper end of the outer oxygen endless tube, the outer oxygen notch setting
In the bottom of the outer oxygen endless tube；Cooling medium inlet and the cooling medium outlet is arranged on the upper end of the cooling ring vessel,
And the cooling medium inlet and cooling medium outlet are distributed in the both sides of gasification nozzle central shaft.
The fuel gas spout and interior oxygen spout are higher than the mixture spout.
The present invention has the advantages that compared with prior art：
（1）Water-coal-slurry of the present invention and natural gas combined vaporizing nozzle, including the point being sequentially coaxially arranged from the inside to the outside
Lighted torch, igniter fuel gas central tube, interior oxygen endless tube, water-coal-slurry endless tube, natural gas endless tube, outer oxygen endless tube and cooling ring vessel；Set
In the water-coal-slurry-natural gas hybrid chamber in the outer oxygen endless tube, being downwardly extending by the lower end of the water-coal-slurry endless tube, under
Portion is provided with mixture spout, the natural gas endless tube by the natural gas spout and water-coal-slurry-natural gas hybrid chamber inside
It is connected.The ratio of hydrogen and carbon monoxide is 1 in existing coal water slurry gasification product:1.5-2, and in Modern New coal chemical industry
It is about 2 that synthesizing methanol, artificial oil etc., which need the ratio of hydrogen and carbon monoxide in raw material,:1, it is therefore desirable to adjusted by conversion process
The ratio of hydrogen and carbon monoxide in whole raw material.The application applicant has found after research, is incited somebody to action by the gasification nozzle of the present invention
After natural gas uniformly mixes with water-coal-slurry in water-coal-slurry-natural gas hybrid chamber, in outer oxygen endless tube under oxygen effect, to mixed
Compound is gasified.Due to still remaining substantial amounts of vapor after the coal water slurry gasification in mixture, in the presence of mixing, naturally
Gas can the reaction of remaining with coal water slurry gasification vapor generate enough hydrogen, thus improve the hydrogen content in gasification product and
The ratio of hydrogen and carbon monoxide, the raw material that caused gasification product can be without conversion directly as methanol, artificial oil etc., and
And natural gas substantially increases the cold gas efficiency of gasification with water-coal-slurry combined vaporizing, avoids water-coal-slurry gas in the prior art
It is low to change cold gas efficiency, the ratio of hydrogen and carbon monoxide is too low, it is necessary to improve its ratio by conversion process in product, converts
Technique both improves process complexity, also result in a large amount of CO2The discharge of gas, although applicant is attempted by adjusting gasification original
Species is expected to overcome disadvantages mentioned above, but existing nozzle arrangements can not meet the problem of it is required.
Further, water-coal-slurry igniting can be realized by the fire rod being located in igniter fuel gas central tube and gasified continuous
Carry out, without changing nozzle, improve the security of production efficiency and equipment.
（2）Water-coal-slurry of the present invention and natural gas combined vaporizing nozzle, the water-coal-slurry-natural gas hybrid chamber is by two
The necking of head and the tubular structure composition at middle part, the necking on top is gradually wealthy from top to bottom, and the necking of bottom is by up to
Under it is tapered.Flowing velocity reduces after water-coal-slurry and natural gas are entered in water-coal-slurry-natural gas hybrid chamber by the necking on top, water
Coal slurry and natural gas are sufficiently mixed, and then the blended bottom of chamber portion necking of mixture is by the ejection of mixture spout high speed, mist
Change, and hit and be atomized again with high speed oxygen, then carry out high-temperature gasification, water-coal-slurry-natural gas of this structure
Hybrid chamber improves the mixing of water-coal-slurry and natural gas, atomizing effect, improves the cold gas efficiency of gasification, and natural gas can be more
It is fully vaporization to provide enough hydrogen, the ratio of hydrogen and carbon monoxide in product is further increased, generating product can
It is directly used as the raw material of follow-up chemical industry synthesis.
（3）Water-coal-slurry of the present invention and natural gas combined vaporizing nozzle, the axle of multiple natural gas spouts is not in institute
State water-coal-slurry-natural gas hybrid chamber side wall into circumference radially.Due to fire rod, igniter fuel gas central tube and interior oxygen
Endless tube is set along the axle of water-coal-slurry-natural gas hybrid chamber, makes the axle of natural gas spout not in the radial direction of hybrid chamber side wall circumference
On, it is possible to reduce the natural gas of injection washes away to fire rod, igniter fuel gas central tube and interior oxygen endless tube at a high speed.It is it is preferred that multiple
The natural gas spout tilts in the counterclockwise direction along clockwise direction or, and the axle of multiple natural gas spouts with
The water-coal-slurry-natural gas hybrid chamber side wall into the radial direction of circumference into 5-85 ° of angle.It can almost avoid spraying at a high speed
Natural gas fire rod, igniter fuel gas central tube and interior oxygen endless tube are washed away, so as to extend the service life of gasification nozzle；
Moreover, in the gasification nozzle so set, natural gas will not slow down after spraying because washing away interior oxygen endless tube tube wall, it is thus possible to
Eddy flow is formed in water-coal-slurry-natural gas hybrid chamber, improves natural gas and the mixed effect of water-coal-slurry.
Brief description of the drawings
In order that present disclosure is more easily understood, the present invention combines the drawings and specific embodiments to the present invention's
Content is further detailed；
Fig. 1 is the structural representation of water-coal-slurry of the present invention and natural gas combined vaporizing nozzle；
Fig. 2 is the sectional view of water-coal-slurry of the present invention and natural gas combined vaporizing nozzle along A-A；
Wherein reference is：1- fire rodes, 2- igniter fuel gas central tubes, oxygen endless tube in 3-, 4- water-coal-slurry endless tubes, 5-
Natural gas endless tube, the outer oxygen endless tubes of 6-, 7- cooling ring vessels, 8- fuel gas inlets, 9- fuel gas spouts, oxygen import in 10-, in 11-
Oxygen spout, 12- water-coal-slurry imports, 13- Imported gas, the outer oxygen imports of 14-, the outer oxygen spouts of 15-, 16- cooling medium inlets,
17- cooling mediums export, 18- water-coal-slurry spouts, 19- natural gas spouts, 20- mixture spouts, and 21- water-coal-slurry-natural gas mixes
Close chamber.
Embodiment
Embodiment 1
Water-coal-slurry of the present invention and natural gas combined vaporizing nozzle are as shown in figure 1, including from the inside to the outside sequentially coaxially
Fire rod 1, igniter fuel gas central tube 2, interior oxygen endless tube 3, water-coal-slurry endless tube 4, natural gas endless tube 5, the outer and of oxygen endless tube 6 being arranged
Cooling ring vessel 7；The top of igniter fuel gas central tube 2 is provided with fuel gas inlet 8, bottom is provided with fuel gas spout 9,
In the present embodiment, the fuel gas inlet 8 is arranged on the upper end of the igniter fuel gas central tube 2, and the fuel gas spout 9 is set
Put in the bottom of the igniter fuel gas central tube 2；The interior top of oxygen endless tube 3 is provided with interior oxygen import 10, bottom is provided with
Interior oxygen spout 11, in the present embodiment, the interior oxygen import 10 are arranged on the upper end of the interior oxygen endless tube 3, the interior oxygen spout
11 are arranged on the bottom of the interior oxygen endless tube 3；The top of water-coal-slurry endless tube 4 is provided with water-coal-slurry import 12, the natural gas
The top of endless tube 5 is provided with Imported gas 13, and in the present embodiment, the water-coal-slurry import 12 is arranged on the water-coal-slurry endless tube
4 upper end, the Imported gas 13 are arranged on the upper end of the natural gas endless tube 5；The outer top of oxygen endless tube 6 is provided with outer
Oxygen import 14, bottom are provided with outer oxygen spout 15, and in the present embodiment, the outer oxygen import 14 is arranged on the outer oxygen endless tube 6
Upper end, the outer oxygen spout 15 is arranged on the bottom of the outer oxygen endless tube 6；Cooling medium is provided with the cooling ring vessel 7
Import 16 and cooling medium outlet 17, in the present embodiment, cooling medium inlet 16 and the cooling medium outlet 17 are arranged on
The upper end of the cooling ring vessel 7, and the cooling medium inlet 16 and cooling medium outlet 17 are distributed in gasification nozzle center
The both sides of axle；
Water-coal-slurry-natural gas hybrid chamber 21, in the outer oxygen endless tube 6, from the lower end of the water-coal-slurry endless tube 4 to
Lower extension is formed, and the water-coal-slurry-bottom of natural gas hybrid chamber 21 is provided with mixture spout 20；The natural gas endless tube 5
Lower end is connected with the outer wall of the water-coal-slurry-natural gas hybrid chamber 21, is set on the water-coal-slurry-natural gas hybrid chamber 21
There is natural gas spout 19, the natural gas endless tube 5 passes through the natural gas spout 19 and the water-coal-slurry-natural gas hybrid chamber
It is connected inside 21, the water-coal-slurry endless tube 4 passes through inside water-coal-slurry spout 18 and the water-coal-slurry-natural gas hybrid chamber 21
It is connected；In the present embodiment, the lower end of the water-coal-slurry endless tube 4 is downwardly extending in the natural gas endless tube 5
The water-coal-slurry-natural gas hybrid chamber 21, and the lower end of the natural gas endless tube 5 mixes with the water-coal-slurry-natural gas
The outer wall of the bottom of chamber 21 is connected, and the mixture spout 20 is arranged on the bottom of the water-coal-slurry-natural gas hybrid chamber 21,
The water-coal-slurry-natural gas hybrid chamber 21 is made up of the necking at two and the tubular structure at middle part, and the necking on top is by upper
Gradually wealthy under, the necking of bottom is tapered from top to bottom, the water-coal-slurry endless tube 4 and water-coal-slurry-natural gas hybrid chamber 21
The connection place of communicating is water-coal-slurry spout 18, and the top and middle part of the water-coal-slurry-natural gas hybrid chamber 21 are respectively arranged with multiple
The natural gas spout 19, circle formed by multiple natural gas spouts 19 along the water-coal-slurry-side wall of natural gas hybrid chamber 21
Week is uniformly arranged, and the axles of multiple natural gas spouts 19 is not in the water-coal-slurry-side wall of natural gas hybrid chamber 21 institute into circumference
Radially.
The use process of above-mentioned gasification nozzle：Fuel gas is passed through to igniter fuel gas central tube 2 first, interior oxygen endless tube 3 is pressed
Ratio is passed through oxygen and mixed with fuel gas at interior oxygen spout 11, is lighted by fire rod 1, while other passages are passed through a small amount of nitrogen
Gas is as protection gas；After flameholding, nitrogen filled protection gas is cut off, water coal is each led into water-coal-slurry endless tube 4 and natural gas endless tube 5
Slurry and natural gas, oxygen are passed through in outer oxygen endless tube 6, natural gas mixes with water-coal-slurry in water-coal-slurry-natural gas hybrid chamber 21
Afterwards, blended thing spout 20 sprays at a high speed mixture, and the water-coal-slurry-natural gas mixture sprayed at a high speed is in outer oxygen endless tube 6
Be ignited, gasify under the effect of oxygen air curtain, due to natural gas vapor remaining with coal water slurry gasification react can provide it is enough
Hydrogen, therefore improve the ratio of hydrogen and carbon monoxide in gasification product, while the cold gas efficiency to gasify improves, gasifying agent
The consumption of oxygen substantially reduces.
Embodiment 2
On the basis of above-described embodiment, in order to reduce washing away for the internal oxygen endless tube 3 of high speed natural gas, as shown in Figure 1-2,
It is preferred that multiple natural gas spouts 19 tilt in the counterclockwise direction along clockwise direction or, it is in the present embodiment, multiple
The natural gas spout 19 tilts in the counterclockwise direction；The axles of multiple natural gas spouts 19 and the water-coal-slurry-natural
The side wall of gas hybrid chamber 21 into the radial direction of circumference into 5-85 ° of angle, so as to form rotation in water-coal-slurry-natural gas hybrid chamber 21
Stream, improves the mixed effect of water-coal-slurry and natural gas, and then improves the treatment effeciency of water-coal-slurry.In order to light water in time
The mixture that coal slurry is formed with natural gas, the fuel gas spout 9 and interior oxygen spout 11 are higher than the mixture spout 20.
Comparative example
Using the combining nozzle of the coal water slurry gasification in Chinese patent literature CN202509052U as comparative example.
Test case
Using Texaco gasification furnaces, and the gasification nozzle being respectively adopted in embodiment 1, embodiment 2 and comparative example is to water
Coal slurry is gasified, and gasification result see the table below.
1- embodiments 1,2 are identical with jet coal used in comparative example；
2-CO2Discharge only refers to the transformed technique productions synthesis gas of coal gas caused by coal gasification（Synthesizing methanol and artificial oil
Raw material）During discharge capacity.
By the test data of upper table, using gasification nozzle of the present invention by natural gas and water-coal-slurry combined vaporizing
Afterwards, the ratio of hydrogen and carbon monoxide is greatly improved, reduces and is consumed than oxygen, reduce follow-up artificial oil and methanol synthetizing technology
CO2Discharge capacity；In comparative example and embodiment 1, H2/ CO is consumed by comparative example than bringing up to 1.44 by the 0.76 of comparative example than oxygen
377Nm3/1000Nm3(CO+H2) it is reduced to 291Nm3/1000Nm3(CO+H2), the coal gas of embodiment 1 is used to compare during artificial oil
Comparative example product per ton can reduce CO22.86 tons of discharge, the coal gas of embodiment 1 is used for the production more per ton than comparative example of synthesizing methanol phase
Product can reduce CO21.25 tons of discharge.
Embodiment 2 is understood, as the weight of natural gas and coal is than increasing, H in product2/ CO ratio increase, gasify and consumed than oxygen
Reduce, cold gas efficiency improves, the transformed technique productions synthesis gas of gasification gas（The raw material of synthesizing methanol and artificial oil）Process
Middle CO2Discharge capacity reduce.
Although the present invention has carried out detailed elaboration to it by above-mentioned specific embodiment, this specialty is common
Technical staff should be understood that the change for any form and details without departing from claims made on this basis
Change, belong to invention which is intended to be protected.
Claims (8)
1. a kind of water-coal-slurry and natural gas combined vaporizing nozzle, it is characterised in that including
Fire rod (1), igniter fuel gas central tube (2), interior oxygen endless tube (3), the water-coal-slurry ring being sequentially coaxially arranged from the inside to the outside
Manage (4), natural gas endless tube (5), outer oxygen endless tube (6) and cooling ring vessel (7)；
Igniter fuel gas central tube (2) top is provided with fuel gas inlet (8), bottom is provided with fuel gas spout (9)；
Interior oxygen endless tube (3) top is provided with interior oxygen import (10), bottom is provided with interior oxygen spout (11)；
Water-coal-slurry endless tube (4) top is provided with water-coal-slurry import (12), and natural gas endless tube (5) top is provided with naturally
Gas import (13)；
Outer oxygen endless tube (6) top is provided with outer oxygen import (14), bottom is provided with outer oxygen spout (15)；
Cooling medium inlet (16) and cooling medium outlet (17) are provided with the cooling ring vessel (7)；
Water-coal-slurry-natural gas hybrid chamber (21), in the outer oxygen endless tube (6), by the lower end of the water-coal-slurry endless tube (4)
It is downwardly extending, the water-coal-slurry-natural gas hybrid chamber (21) bottom is provided with mixture spout (20)；
The lower end of the natural gas endless tube (5) is connected with the outer wall of the water-coal-slurry-natural gas hybrid chamber (21), the water
Natural gas spout (19) is provided with coal slurry-natural gas hybrid chamber (21), the natural gas endless tube (5) passes through the natural gas
Spout (19) inside the water-coal-slurry-natural gas hybrid chamber (21) with being connected；
The water-coal-slurry-natural gas hybrid chamber (21) is made up of the necking at two and the tubular structure at middle part, the contracting on top
Mouth is gradually wealthy from top to bottom, and the necking of bottom is tapered from top to bottom；
The top and middle part of the water-coal-slurry-natural gas hybrid chamber (21) are respectively arranged with multiple natural gas spouts (19),
Multiple natural gas spouts (19) are set along the water-coal-slurry-even circumferential formed by natural gas hybrid chamber (21) side wall, more
The individual natural gas spout (19) tilts in the counterclockwise direction along clockwise direction or, and multiple natural gas spouts
(19) axle and the water-coal-slurry-natural gas hybrid chamber (21) side wall into the radial direction of circumference into 5-85 ° of angle.
2. nozzle according to claim 1, it is characterised in that the water-coal-slurry-natural gas hybrid chamber (21) is positioned at described
In natural gas endless tube (5), the lower end of the natural gas endless tube (5) is outer with the water-coal-slurry-natural gas hybrid chamber (21) bottom
Wall is connected.
3. nozzle according to claim 1, it is characterised in that the mixture spout (20) be arranged on the water-coal-slurry-
The bottom of natural gas hybrid chamber (21).
4. according to any described nozzles of claim 1-3, it is characterised in that the water-coal-slurry import (12) is arranged on the water
The upper end of coal slurry endless tube (4), the Imported gas (13) are arranged on the upper end of the natural gas endless tube (5).
5. according to any described nozzles of claim 1-3, it is characterised in that the fuel gas inlet (8) is arranged on the point
The upper end of fiery fuel gas central tube (2), the fuel gas spout (9) are arranged on the bottom of the igniter fuel gas central tube (2)；
The interior oxygen import (10) is arranged on the upper end of the interior oxygen endless tube (3), and the interior oxygen spout (11) is arranged on the interior oxygen ring
Manage the bottom of (3)；The outer oxygen import (14) is arranged on the upper end of the outer oxygen endless tube (6), and the outer oxygen spout (15) is set
In the bottom of the outer oxygen endless tube (6)；The cooling medium inlet (16) and cooling medium outlet (17) are arranged on the cooling
The upper end of endless tube (7), and the cooling medium inlet (16) and cooling medium outlet (17) are distributed in gasification nozzle central shaft
Both sides.
6. according to any described nozzles of claim 1-3, it is characterised in that the fuel gas spout (9) and interior oxygen spout
(11) it is higher than the mixture spout (20).
7. nozzle according to claim 4, it is characterised in that the fuel gas spout (9) and interior oxygen spout (11) are higher than
The mixture spout (20).
8. nozzle according to claim 5, it is characterised in that the fuel gas spout (9) and interior oxygen spout (11) are higher than
The mixture spout (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500577.4A CN104560213B (en) | 2013-10-22 | 2013-10-22 | A kind of water-coal-slurry and natural gas combined vaporizing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500577.4A CN104560213B (en) | 2013-10-22 | 2013-10-22 | A kind of water-coal-slurry and natural gas combined vaporizing nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104560213A CN104560213A (en) | 2015-04-29 |
| CN104560213B true CN104560213B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310500577.4A Active CN104560213B (en) | 2013-10-22 | 2013-10-22 | A kind of water-coal-slurry and natural gas combined vaporizing nozzle |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443230A (en) * | 1983-05-31 | 1984-04-17 | Texaco Inc. | Partial oxidation process for slurries of solid fuel |
| IN167311B (en) * | 1985-04-16 | 1990-10-06 | Dow Chemical Co | |
| JPH0967582A (en) * | 1995-08-31 | 1997-03-11 | Hitachi Ltd | Process and apparatus for preparing hydrogen/carbon monoxide mixed gas |
| CN102268300B (en) * | 2011-06-30 | 2014-04-30 | 神华集团有限责任公司 | Coal liquefaction residue and coal water slurry combined gasification nozzle and application thereof |
| CN203007227U (en) * | 2012-11-26 | 2013-06-19 | 清华大学 | Water-coal-slurry burner nozzle |
| CN203559028U (en) * | 2013-10-22 | 2014-04-23 | 任相坤 | Coal water slurry-natural gas combined gasified nozzle |
-
2013
- 2013-10-22 CN CN201310500577.4A patent/CN104560213B/en active Active
Also Published As
| Publication number | Publication date |
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| CN104560213A (en) | 2015-04-29 |
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