CN106118751A - Coal gasification assembled nozzle - Google Patents
Coal gasification assembled nozzle Download PDFInfo
- Publication number
- CN106118751A CN106118751A CN201610700929.4A CN201610700929A CN106118751A CN 106118751 A CN106118751 A CN 106118751A CN 201610700929 A CN201610700929 A CN 201610700929A CN 106118751 A CN106118751 A CN 106118751A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- coal dust
- oxidant
- outlet
- coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- 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
-
- 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
-
- 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
-
- 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
Abstract
The present invention provides a kind of coal gasification assembled nozzle, including: central canal, the inlet side of central canal is provided with igniting fuel gas inlet, and the outside of central canal is arranged with igniting casing air, the first cooling water pipe, oxidant sleeve pipe, the second cooling water pipe, coal dust sleeve pipe, the 3rd cooling water pipe successively；The outlet of igniting casing air stretches out relative to the outlet of central canal, to limit the first pre-mix zone, for mixed firing combustion gas and igniting air；The outlet of coal dust sleeve pipe stretches out relative to the outlet of oxidant sleeve pipe, to limit the second pre-mix zone, for hybrid oxidant and coal dust；Oxidant sleeve pipe tapers near the aperture, one end of outlet, and the inwall in the exit of oxidant sleeve pipe is circumferentially arranged spinning disk.The coal gasification assembled nozzle of the present invention achieves the uniform gas-solid mixing of oxidant and coal dust, so that the coal dust firing in pulverized coal gasification furnace is stable, efficiency of carbon con version is high.
Description
Technical field
The present invention relates to bed pulverized coal gasification technology, particularly relate to a kind of coal gasification assembled nozzle.
Background technology
Outstanding day by day along with the increasingly serious of Energy situation and environmental problem, utilizes China's rich reserves cleanly and efficiently
Coal resources become the important topic of current energy field.Coal gasification is the important means that Coal Clean efficiently utilizes, Gao Pin
The coal gas of matter can use as industry clean gas or generate the downstream product of high added value for Coal Chemical Industry.
Dry coal powder gasification technology is one of existing main Coal Gasification Technology, and dry coal powder gasification technology all uses high-pressure gasified
(pressure >=4.0MPa), and the high-pressure gasified high problem with waste compression power consumption of equipment investment cost that exists, therefore for fuel
Gas user and middle-size and small-size Coal Chemical Engineering Project, normal low-pressure air current bed gasification furnace has obvious advantage.Burner is normal low pressure gas fluidized bed
The nucleus equipment of gasification furnace, its continuous high-efficient stable operation is to ensure that the key factor of gasification furnace economy.And traditional fine coal
There is the problem that gas-solid mixing is insufficient, combustion instability, efficiency of carbon con version are low in gasification burner tip.
Summary of the invention
The present invention provides a kind of coal gasification assembled nozzle, to overcome the gas-solid that in prior art, coal gasification burner exists
The problem that undercompounding, combustion instability, efficiency of carbon con version are low.
The present invention provides a kind of coal gasification assembled nozzle, including:
Central canal, the inlet side of described central canal is provided with igniting fuel gas inlet；
The outside of described central canal successively be arranged with igniting casing air, the first cooling water pipe, oxidant sleeve pipe, second
Cooling water pipe, coal dust sleeve pipe, the 3rd cooling water pipe；
The outlet of described igniting casing air stretches out relative to the outlet of described central canal, to limit the first premix
District, for mixed firing combustion gas and igniting air；Described coal dust sleeve pipe outlet relative to described oxidant sleeve pipe outlet to
Outer extension, to limit the second pre-mix zone, for hybrid oxidant and coal dust；
Described oxidant sleeve pipe tapers near the aperture, one end of outlet, and the exit of described oxidant sleeve pipe is interior
Wall is circumferentially arranged the first spinning disk.
Coal gasification assembled nozzle as above, is provided with at least coal dust solenoid, institute in described coal dust sleeve pipe
State coal dust solenoid and one end of outlet is provided with multiple pod apertures.
Described coal gasification assembled nozzle, the plurality of pod apertures is solenoidal axially arranged along described coal dust, and institute
State multiple pod apertures to arrange around described coal dust solenoid.
Coal gasification assembled nozzle as above, the runner line style of described oxidant sleeve pipe is Wei Duoxinsi base curves.
Coal gasification assembled nozzle as above, described igniting casing air gradually becomes near the aperture, one end of outlet
Little, the inwall in the exit of described igniting casing air is circumferentially arranged the second spinning disk.
Coal gasification assembled nozzle as above, is provided with high-energy igniter in described central canal, described central canal
Exit is provided with current-limiting apparatus.
Coal gasification assembled nozzle as above, described current-limiting apparatus is frustum structure, the first of described current-limiting apparatus
End face is provided with centre bore, and described centre bore is used for supporting described high-energy igniter, the half of the first end face of described current-limiting apparatus
Footpath is less than the radius of the second end face of described current-limiting apparatus.
Coal gasification assembled nozzle as above, described current-limiting apparatus is provided with extension on the sidewall of the second end face
Ear, described hangers is welded to connect with described central canal.
Coal gasification assembled nozzle as above, described coal dust sleeve pipe is provided with protective gas on the sidewall of entrance
Entrance.
The coal gasification assembled nozzle of the present embodiment, including central canal, the inlet side of central canal is provided with igniting combustion gas and enters
Mouthful, the outside of central canal is arranged with igniting casing air, the first cooling water pipe, oxidant sleeve pipe, the second cooling jacket successively
Pipe, coal dust sleeve pipe, the 3rd cooling water pipe, the outlet of igniting casing air stretches out relative to the outlet of central canal, with limit
Making the first pre-mix zone, the outlet of coal dust sleeve pipe stretches out relative to the outlet of oxidant sleeve pipe, to limit the second premix
District, oxidant sleeve pipe tapers near the aperture, one end of outlet, and the inwall in the exit of oxidant sleeve pipe is circumferentially arranged
Having spinning disk, it is achieved that oxidant and the uniform gas-solid mixing of coal dust, so that coal dust firing is stable in pulverized coal gasification furnace, carbon turns
Rate is high.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the generalized section of the coal gasification assembled nozzle of the embodiment of the present invention；
Fig. 2 is the current-limiting apparatus structural representation of the central canal of the coal gasification assembled nozzle of the embodiment of the present invention；
Fig. 3 is the coal dust solenoid schematic diagram of the coal gasification assembled nozzle of the embodiment of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Fig. 1 is the generalized section of the coal gasification assembled nozzle of the embodiment of the present invention, and Fig. 2 is the powder of the embodiment of the present invention
The current-limiting apparatus structural representation of the central canal of coal gasification assembled nozzle, Fig. 3 is that the coal gasification combination of the embodiment of the present invention is burnt
The coal dust solenoid schematic diagram of mouth.See Fig. 1～Fig. 3, the coal gasification assembled nozzle of the embodiment of the present invention, may include that
Central canal 101, the inlet side of central canal 101 is provided with igniting fuel gas inlet 102；
The outside of central canal 101 is arranged with igniting casing air the 103, first cooling water pipe 104, oxidant sleeve pipe successively
105, the second cooling water pipe 106, coal dust sleeve pipe the 107, the 3rd cooling water pipe 108；
The outlet of igniting casing air 103 stretches out relative to the outlet of central canal 101, to limit the first pre-mix zone
109, for mixed firing combustion gas and igniting air；The outlet of coal dust sleeve pipe 107 is outside relative to the outlet of oxidant sleeve pipe 105
Extend, to limit the second pre-mix zone 110, for hybrid oxidant and coal dust；
Oxidant sleeve pipe 105 tapers near the aperture, one end of outlet, and the inwall edge in the exit of oxidant sleeve pipe
It is circumferentially provided with the first spinning disk 111.
The coal gasification assembled nozzle of the present embodiment, mainly includes the first pre-mix zone and the second pre-mix zone.In concrete work
During work, pass first into igniting air and enter the first pre-mix zone, then starting ignition device be passed through igniting combustion gas, igniting combustion
Gas, at the first pre-mix zone ignition, enters gasification furnace after producing flame, and flame closes igniting after tending towards stability in gasification furnace
Device；Then passing to oxidant and coal dust, both enter gasification furnace, by gasification furnace flame point after mixing in the second pre-mix zone
Coal gasification process is opened in combustion, stops being passed through igniting air and igniter fuel gas after coal dust firing is stable, and gasification furnace enters normal
Running status.
Use detailed embodiment below, the mixed process in the first pre-mix zone and the mixing of the second pre-mix zone are described
Process.
Central canal 101 in the present embodiment limits igniting with the igniting casing air 103 being set in outside central canal 101
Air duct, igniting air enters igniting sky from the casing air 103 igniting air intlet 112 near the sidewall of entrance of lighting a fire
Gas passage, enters the first pre-mix zone 109 after flowing through igniting air duct；Central canal 101 is the passage of igniting combustion gas, combustion gas of lighting a fire
Enter from the igniting fuel gas inlet 102 of central canal 101 inlet side, flow through central canal 101, and enter from the outlet of central canal 101
In first pre-mix zone 109；Igniting combustion gas and igniting air mix in the first pre-mix zone 109, enter gasification furnace after producing flame.
Alternatively, the igniting combustion gas in the present embodiment can be oil liquefied gas, natural gas, periodic off-gases or other is alternative
Fuel gas, the oxidant in this enforcement can be oxygen or oxygen-enriched.
Oxidant sleeve pipe 105 and the first cooling water pipe 104 limit oxidant channel, and oxidant is from oxidant sleeve pipe
105 oxidant inlets 115 on the sidewall of entrance enter, and flow through oxidant channel and enter the second pre-mix zone 110；Coal dust set
Pipe 107 and the second cooling water pipe 106 limit coal dust channel, and coal dust enters coal dust sleeve pipe 107, enter after flowing through coal dust channel
Second pre-mix zone 110, oxidant and coal dust mix in the second pre-mix zone 110, subsequently into gasification furnace.Due to oxidant sleeve pipe
105 taper near the apertures, one end of outlet, and the inwall in the exit of oxidant sleeve pipe is circumferentially arranged the first eddy flow
Sheet 111 so that oxidant flows through to produce after oxygen channel and accelerates expansion eddy flow, carries and is positioned at the coal dust outside it and spins fortune
Dynamic, it is achieved oxidant and the uniform mixing of coal dust, so that coal dust flameholding in gasification furnace, improve efficiency of carbon con version.
Further, substantial amounts of heat, therefore, coal dust gas can be produced in the course of the work due to coal dust gasification assembled nozzle
Change assembled nozzle and also include cooling system.Below this cooling system is illustrated.
First cooling water pipe 104 and igniting casing air 103 limit the first cooling-water duct, and cooling water is cold from first
But the first cooling water inlet 117 of aquaporin porch enters, and is back to the first cooling jacket after flowing through the first cooling-water duct
In pipe 104, finally the first coolant outlet 118 from the sidewall of the first close outlet of cooling water pipe 104 flows out.
Second cooling water pipe 106 and oxidant sleeve pipe 105 limit the second cooling-water duct, and cooling water is from the second cooling
Second cooling water inlet 119 of aquaporin entrance side enters, and is back to the second cooling water pipe after flowing through the second cooling-water duct
In 106, finally the second coolant outlet 120 from the sidewall of the second close outlet of cooling water pipe 106 flows out.
3rd cooling water pipe 108 and coal dust sleeve pipe 107 limit the 3rd cooling-water duct, and cooling water is from the 3rd cooling water
3rd cooling water inlet 121 of feeder connection side enters, and is back to the 3rd cooling water pipe 108 after flowing through the 3rd cooling-water duct
In, finally the 3rd coolant outlet 122 from the sidewall of the 3rd close outlet of cooling water pipe 108 flows out.
Above-mentioned cooling system can reduce the temperature in coal dust gasification assembled nozzle work process, improves coal dust gasification combination
The service life of burner.
The coal gasification assembled nozzle of the present embodiment, including central canal, the inlet side of central canal is provided with igniting combustion gas and enters
Mouthful, the outside of central canal is arranged with igniting casing air, the first cooling water pipe, oxidant sleeve pipe, the second cooling jacket successively
Pipe, coal dust sleeve pipe, the 3rd cooling water pipe, the outlet of igniting casing air stretches out relative to the outlet of central canal, with limit
Making the first pre-mix zone, the outlet of coal dust sleeve pipe stretches out relative to the outlet of oxidant sleeve pipe, to limit the second premix
District, oxidant sleeve pipe tapers near the aperture, one end of outlet, and the inwall in the exit of oxidant sleeve pipe is circumferentially arranged
There is spinning disk, it is achieved that oxidant and the uniform gas-solid mixing of coal dust, so that the coal dust firing in pulverized coal gasification furnace is stable, carbon
Conversion ratio is high.
Partially burning phenomenon in order to avoid coal dust produces in gasification furnace, on the basis of above-described embodiment, coal dust gasification combines
Being provided with at least coal dust solenoid 123 in the coal dust sleeve pipe of burner, coal dust solenoid 123 is provided with near one end of outlet
Multiple pod apertures 124；Axially arranged along coal dust solenoid 123 of multiple pod apertures 124, and multiple pod apertures 124 is around coal dust
Solenoid 123 is arranged.
Specifically, the quantity of coal dust solenoid 123 determines according to seam number, can be one, it is also possible to for many.Seam
Number refers to the number from coal dust storage warehouse pulverized coal conveying to the pipeline of coal dust gasification assembled nozzle, and above-mentioned pipeline enters coal dust gasification
Assembled nozzle rear screw bends, the most referred to as coal dust solenoid.
Coal dust enters coal dust sleeve pipe 107 and second from the pipeline of coal dust storage warehouse pulverized coal conveying to coal dust gasification assembled nozzle
After the coal dust channel that cooling water pipe 106 limits, in coal dust solenoid 123, make helical flow, then through being circumferentially positioned at
Pod apertures 124 on coal dust solenoid 123 flows out, owing to pod apertures 124 is to be circumferentially positioned on coal dust solenoid 123, therefore,
Coal dust is evenly distributed in coal dust channel after pod apertures 124 flows out, it is to avoid occur in follow-up gasification furnace burns phenomenon partially.
Coal dust gasification assembled nozzle in the present embodiment has the coal dust solenoid of pod apertures by setting, it is achieved that coal dust
It is evenly distributed in coal dust channel, it is to avoid occur in follow-up gasification furnace burns phenomenon partially.
Further, the coal gas in order to produce in preventing gasification furnace blows back in coal dust gasification assembled nozzle, in above-mentioned reality
On the basis of executing example, coal dust sleeve pipe 107 is provided with gas atmosphere inlet 125 on the sidewall of entrance.
Specifically, during the work of coal dust gasification assembled nozzle, protective gas enters coal dust channel from gas atmosphere inlet 125
In.In the present embodiment, protective gas can be the noble gas such as nitrogen, argon.
In order to improve the service behaviour of coal gasification assembled nozzle, this enforcement is to the central canal 101 in above-described embodiment, point
Further improvement made by fire casing air 103 and oxidant sleeve pipe 105.
First the central canal 101 in this enforcement is further described.
The present embodiment is provided with high-energy igniter 126 in the central canal 101 of coal gasification assembled nozzle, central canal 101
Exit is provided with current-limiting apparatus 127；High-energy igniter 126 is used for lighting igniting combustion gas；Current-limiting apparatus 127 is frustum structure,
First end face of current-limiting apparatus is provided with centre bore 128, and centre bore 128 is used for supporting high-energy igniter, the of current-limiting apparatus 127
The radius of end face is less than the radius of the second end face of current-limiting apparatus 127；Current-limiting apparatus 127 sets on the sidewall of the second end face
Being equipped with hangers 129, hangers 129 is welded to connect with central canal 101.
Concrete, igniting combustion gas enters in the first pre-mix zone 109 after flowing through central canal after the current limliting of current-limiting apparatus 127,
Current-limiting apparatus 127 makes igniting combustion gas obtain an expansion component velocity radially so that igniting combustion gas and igniting air are first
Can preferably mix in pre-mix zone 109.
Optionally, the hangers of current-limiting apparatus can have 4.
It will be understood by those skilled in the art that the current-limiting apparatus in the present embodiment is not limited to above-mentioned structure, also may be used
To use other structure, igniting combustion gas is made to obtain an expansion component velocity radially as long as can play.
Secondly, the igniting casing air 103 in this enforcement is further described.
In the present embodiment, the igniting casing air 103 of coal gasification assembled nozzle tapers near the aperture, one end of outlet,
The inwall in the exit of igniting casing air 103 is circumferentially arranged the second spinning disk 130.
Specifically, igniting air flow point fire air duct after through igniting casing air 103 outlet enter the first pre-mix zone
109, owing to igniting casing air 103 tapers near the aperture, one end of outlet so that flow through the igniting of igniting air duct
Air obtains a radially contracted component velocity, at the first premix after can colliding with the igniting combustion gas of central canal ejection
Mix homogeneously in district 109.
Central canal 101 can be entered by the second spinning disk 130 that the inwall in the exit of igniting casing air 103 is circumferentially arranged
Row supports.
Further, the inwall in exit of igniting casing air 103 is circumferentially arranged the second spinning disk 130 and oxidation
The eddy flow direction of the first spinning disk 111 that the inwall in the exit of agent sleeve pipe is circumferentially arranged is consistent.
Then oxidant sleeve pipe 105 is further described.
In the present embodiment, the runner line style of the oxidant sleeve pipe 105 of the coal gasification assembled nozzle of coal gasification assembled nozzle is
Wei Duoxinsi base curves.
In the present embodiment, the runner of the Wei Duoxinsi base curves of oxidant sleeve pipe 105 can be substantially reduced the flowing of oxidant
Resistance, reduces conveying equipment energy consumption, and oxidant is uniformly distributed at radial direction flow velocity.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a coal gasification assembled nozzle, it is characterised in that including:
Central canal, the inlet side of described central canal is provided with igniting fuel gas inlet；
The outside of described central canal is arranged with igniting casing air, the first cooling water pipe, oxidant sleeve pipe, the second cooling successively
Jacket pipe, coal dust sleeve pipe, the 3rd cooling water pipe；
The outlet of described igniting casing air stretches out relative to the outlet of described central canal, to limit the first pre-mix zone,
For mixed firing combustion gas and igniting air；The outlet of described coal dust sleeve pipe relative to the outlet of described oxidant sleeve pipe to extension
Stretch, to limit the second pre-mix zone, for hybrid oxidant and coal dust；
Described oxidant sleeve pipe tapers near the aperture, one end of outlet, and the inwall edge in the exit of described oxidant sleeve pipe
It is circumferentially provided with the first spinning disk.
Coal gasification assembled nozzle the most according to claim 1, it is characterised in that be provided with at least in described coal dust sleeve pipe
A piece coal dust solenoid, described coal dust solenoid is provided with multiple pod apertures near one end of outlet.
Coal gasification assembled nozzle the most according to claim 2, it is characterised in that the plurality of pod apertures is along described coal dust
Solenoidal axially arranged, and the plurality of pod apertures arranges around described coal dust solenoid.
Coal gasification assembled nozzle the most according to claim 1, it is characterised in that the runner line style of described oxidant sleeve pipe
For Wei Duoxinsi base curves.
Coal gasification assembled nozzle the most according to claim 1, it is characterised in that described igniting casing air is near outlet
Aperture, one end taper into, the inwall in the exit of described igniting casing air is circumferentially arranged the second spinning disk.
Coal gasification assembled nozzle the most according to claim 1, it is characterised in that be provided with high energy point in described central canal
Firearm, the exit of described central canal is provided with current-limiting apparatus.
Coal gasification assembled nozzle the most according to claim 6, it is characterised in that described current-limiting apparatus is frustum structure,
First end face of described current-limiting apparatus is provided with centre bore, and described centre bore is used for supporting described high-energy igniter, described current limliting
The radius of the first end face of device is less than the radius of the second end face of described current-limiting apparatus.
Coal gasification assembled nozzle the most according to claim 7, it is characterised in that described current-limiting apparatus is near the second end face
Sidewall on be provided with hangers, described hangers is welded to connect with described central canal.
9. according to the coal gasification assembled nozzle described in any one of claim 1～8, it is characterised in that described coal dust sleeve pipe leans on
It is provided with gas atmosphere inlet on the sidewall of nearly entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700929.4A CN106118751A (en) | 2016-08-22 | 2016-08-22 | Coal gasification assembled nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700929.4A CN106118751A (en) | 2016-08-22 | 2016-08-22 | Coal gasification assembled nozzle |
Publications (1)
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|---|---|
| CN106118751A true CN106118751A (en) | 2016-11-16 |
Family
ID=57279147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700929.4A Pending CN106118751A (en) | 2016-08-22 | 2016-08-22 | Coal gasification assembled nozzle |
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| CN (1) | CN106118751A (en) |
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| CN106765096A (en) * | 2016-12-30 | 2017-05-31 | 上海泽玛克敏达机械设备有限公司 | Gasification furnace guides burner |
| CN107245352A (en) * | 2017-07-19 | 2017-10-13 | 航天长征化学工程股份有限公司 | Organic waste treatment device and method |
| WO2018188211A1 (en) * | 2017-04-14 | 2018-10-18 | 航天长征化学工程股份有限公司 | Gasification burner |
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Application publication date: 20161116 |