CN103484166A - Solid powder burner and use method thereof - Google Patents
Solid powder burner and use method thereof Download PDFInfo
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- CN103484166A CN103484166A CN201310442392.2A CN201310442392A CN103484166A CN 103484166 A CN103484166 A CN 103484166A CN 201310442392 A CN201310442392 A CN 201310442392A CN 103484166 A CN103484166 A CN 103484166A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a solid powder burner and a use method thereof. The solid powder burner is characterized by comprising a central channel, a circular channel and a cooling system, wherein a sweep gas inlet, a powder fuel inlet, and a liquid/gaseous fuel inlet are sequentially formed in the central channel inlet; a sweep gas inlet and an oxygen-rich gas inlet are sequentially formed in the circular channel inlet; conventional furnace-baking of a gasifier can be finished by firstly igniting the liquid/gaseous fuel; a furnace-baking burner, an ignition burner, and a production burner used in the multiple burner gasification technology can be integrated into a whole through performing sweeping and fuel switching. According to the invention, a starting-up burner, the ignition burner and the production burner are integrated into a whole, the overall ignition process of the gasifier is simplified, and the manufacturing cost is reduced, so that the solid powder burner has the characteristics of versatility, wide application, and long service life.
Description
Technical field
The present invention relates to a kind of solid powder fuel nozzle and using method thereof, belong to gasifying process burner technical field.
Background technology
The dry coal powder airflow bed gasification technology is as one of main flow gasification technology in current Coal Gasification Technology, its development course is compared the simple of coal water slurry entrained flow bed gasification technology, one of different from coal water slurry gasification technology maximum, adopted dry-coal feeding, raw material is not told atomization at needs, only need can realize stable burning and gasification by particle dispersion, but owing to having adopted the cold wall type vapourizing furnace, vapourizing furnace can not pass through simple baker when putting into operation, the vapourizing furnace inner question is risen to more than 1300 ℃ and sprays into coal dust, because by Sweet natural gas or diesel oil baker just to getting through the steady running of water wall hydrodynamic system, also need to coordinate the startup that has coordinated dry coal dust gasification furnace of igniter burner and process burner.The process of putting into operation of dry coal dust gasification furnace is simply expressed as follows.
Existing solid fuel airflow bed gasification furnace starting ignition process complexity, adopt igniter burner, startup burner and three kinds of burners of process burner to combine the process of starting ignition successively, it first adopts igniter burner to light, then with startup burner, vapourizing furnace is heated to high temperature, high pressure conditions, restart process burner, in order to make process burner reach steady combustion state, startup burner will enter in good time companion and burn the stage.The running condition of existing apparatus shows, this start-up course complexity, and startup burner burner head in companion's burning process is very easy to burn out.
Chinese patent CN200610030864.3 discloses a kind of burner noz(zle) of dry coal powder pressure gasifying stove, it mainly adopts the channel structure form, center-aisle and circular channel spray into respectively coal dust and vaporized chemical, as the process burner finally put into operation, concrete as comparatively complicated as above-mentioned process during normal operation.Chinese patent CN200420114032.6 discloses the burner type of cooling different from patent CN200610030864.3, but has retained the channel structure setting, and function and effect are basic identical.
In order effectively to solve a plurality of complicated link related in the dry coal powder gasification process, need to realize that integral type breaks through, and simplify complicated vapourizing furnace startup procedure, and this integrated technique is always unresolved from the function and structure of process burner.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of startup burner, the integrated solid powder fuel gasification of process burner compound burner.
In order to solve the problems of the technologies described above, technical scheme of the present invention is a kind of solid powder fuel nozzle, it is characterized in that, comprises coaxially arranged centre channel and circular channel, one end of centre channel and an end of circular channel are in the same plane, form the head of burner; The other end of centre channel exposes from circular channel, and this bared end is provided with 1～3 centre channel entrance; Centre channel and circular channel are connected and fixed by the passage joint flange; Circular channel is provided with the circular channel entrance, circular channel respectively with oxygen-containing gas pipeline, circular channel sweep gas pipeline communication; The head outside in circular channel is provided with cooling channel, and cooling channel and centre channel, circular channel are coaxially arranged; The both sides of cooling channel are communicated with coolant entrance, coolant outlet respectively, and coolant entrance, coolant outlet are fixed in the burner head outside by side cooling jacket and front end joint flange.
Preferably, described centre channel is provided with a centre channel entrance, this centre channel entrance respectively with liquid/gas fuel channel, powder fuel pipeline, centre channel sweep gas pipeline communication.
Preferably, described centre channel is provided with 3 centre channel entrances, is respectively liquid/gas fuel inlet, powder fuel entrance, centre channel sweep gas entrance; The liquid/gas fuel inlet is communicated with the liquid/gas fuel channel, powder fuel entrance and powder fuel pipeline communication, centre channel sweep gas entrance and centre channel sweep gas pipeline communication.
The present invention also provides the using method of above-mentioned solid powder fuel nozzle, when the gasifying process technology for single burner, it is characterized in that, operating process is as follows:
Step 1): open the liquid/gas fuel channel, make liquid/gas fuel pass into centre channel, closing center's passage sweep gas pipeline and powder fuel pipeline;
Step 2): then the oxygen-containing gas pipeline of ingress, circular channel is opened, oxygen-containing gas is passed into to circular channel, burner is installed on vapourizing furnace after lighting the solid powder fuel nozzle, carry out the baker operation;
Step 3) after baker finishes, first close the oxygen-containing gas pipeline, then closing liquid/geseous fuel pipeline passes into;
Step 4): open centre channel sweep gas passage, the gasification furnace gas is replaced;
Step 5): after completing the interior gas displacement of vapourizing furnace, after the conventional igniter burner of industry is lighted, be installed on vapourizing furnace;
Step 6): when in vapourizing furnace, temperature maintains regulation roast technic temperature, the powder fuel passage of solid powder fuel nozzle centre channel is opened, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again the oxygen-containing gas passage is opened, now, under the naked light of the conventional igniter burner of industry is combustion-supporting, the powder fuel in the solid powder fuel nozzle is lighted;
Step 7): close industrial conventional igniter burner after the solid powder fuel nozzle forms stationary flame, now single fire mouth vapourizing furnace startup procedure finishes.
Preferably, in described oxygen-containing gas, the volumetric concentration of oxygen is more than or equal to 21%.
Preferably, described sweep gas is rare gas element, and described rare gas element is argon gas, nitrogen or helium.
Above-mentioned solid powder fuel nozzle, when the gasifying process technology for a plurality of burners, is characterized in that, operating process is as follows:
Step 1): a plurality of solid powder fuel nozzles all are installed on vapourizing furnace, open except each circular channel sweep gas pipeline, centre channel sweep gas pipeline for other solid powder fuel nozzles baker solid powder fuel nozzle;
Step 2): open the liquid/gas fuel channel of baker solid powder fuel nozzle centre channel, close its centre channel sweep gas pipeline and powder fuel passage; Then the oxygen-containing gas pipeline of its ingress, circular channel is opened, it is installed on vapourizing furnace after lighting this baker solid powder fuel nozzle, carry out the baker operation;
Step 3): after baker finishes, other solid powder fuel nozzles are closed to circular channel sweep gas pipeline, centre channel sweep gas pipeline one by one, open the powder fuel pipeline of one of them solid powder fuel nozzle, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again the oxygen-containing gas pipeline is opened, now under the naked light of igniting solid powder fuel nozzle is combustion-supporting, powder fuel in the solid powder fuel nozzle is lighted, and to remaining unlit burner, repeats above operation;
Step 4): after lighting other all solid powder fuel nozzles, close oxygen-containing gas pipeline and the liquid/gas fuel channel of baker solid powder fuel nozzle, open circular channel sweep gas pipeline and centre channel sweep gas pipeline, purge by sweep gas;
Step 5): open oxygen-containing gas passage and powder fuel pipeline after purging, now this solid powder fuel nozzle sprays into logistics and lights rapidly at the combustion-supporting lower quilt of other solid powder fuel nozzle naked lights, now completes the ignition process of all burners again.
Preferably, in described oxygen-containing gas, the volumetric concentration of oxygen is more than or equal to 21%.
Preferably, described sweep gas is rare gas element, and described rare gas element is argon gas, nitrogen or helium.
A kind of solid powder fuel nozzle provided by the invention and using method thereof have following beneficial effect:
(1) adopt the channel structure design, the burner overall structure is simple, makes easy to maintenance.Can be used for the vaporizing system synthesis gas process of the carbon containing solid powder fuel such as dry pulverized coal, colliery powder, refinery coke, organic solid castoff, biomass powder, of many uses;
(2) in centre channel, powder fuel, liquid/gas fuel and sweep gas channel interface are set, only adopt unified compound burner can complete baker, igniting and the operation of process burner composite integrated, greatly simplified the complex process that vapourizing furnace is driven;
(3) patent of the present invention is described has also formulated respectively two kinds of different composite burner startup procedures for single fire mouth and many burners vapourizing furnace, and it,, when simplifying startup procedure, has improved driving success ratio and reliability greatly.
A kind of solid powder fuel nozzle provided by the invention and using method thereof have overcome the deficiencies in the prior art, realized the integrated of startup burner, igniter burner, process burner, simplify whole vapourizing furnace ignition process, there are the characteristics of multifunctionality, of many uses, long service life.
The accompanying drawing explanation
The structural representation of the solid powder fuel nozzle that Fig. 1 provides for embodiment 1;
The structural representation of the solid powder fuel nozzle that Fig. 2 provides for embodiment 2.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
Embodiment 1
The structural representation of the solid powder fuel nozzle that Fig. 1 provides for embodiment 1, comprise coaxially arranged centre channel 1 and circular channel 2, and an end of centre channel 1 and an end of circular channel 2 are in the same plane, forms the head of burner; The other end of centre channel 1 exposes from circular channel 2, and this bared end is provided with 1 centre channel entrance 8; Centre channel 1 and circular channel 2 are connected and cut down 10 and be connected and fixed by passage; Circular channel 2 is provided with circular channel entrance 9, and circular channel 9 is communicated with oxygen-containing gas pipeline D, circular channel sweep gas pipeline E respectively; The 2 heads outsides, circular channel are provided with cooling channel 3, and cooling channel 3 and centre channel 1, circular channel 2 are coaxially arranged; The both sides of cooling channel 3 are communicated with coolant entrance 6, coolant outlet 7 respectively, and coolant entrance 6, coolant outlet 7 are fixed in the burner head outside by side cooling jacket 4 and front end joint flange 5.Centre channel 1 is provided with a centre channel entrance 8, and this centre channel entrance 8 is communicated with liquid/gas fuel channel A, powder fuel pipeline B, centre channel sweep gas pipeline C respectively.
A kind of solid powder fuel nozzle provided by the invention and using method thereof, its operating process is applicable to respectively different gasifying process technology, and its operation and operating process are also different.
When the gasifying process technology for single burner, its technological process is as follows:
Step 1: open liquid/gas fuel channel A, make liquid/gas fuel pass into centre channel 1, the passage sweep gas pipeline C of closing center (sweep gas is rare gas element, can adopt pure nitrogen gas) and powder fuel pipeline B;
Step 2: then the oxygen-containing gas pipeline D of ingress, circular channel 9 is opened, by oxygen-containing gas, (volumetric concentration that oxygen-containing gas is oxygen is 99.6%, other is for the mixed gas of water vapor) pass into circular channel 2, after lighting the solid powder fuel nozzle, burner is installed on vapourizing furnace, carries out the baker operation;
Step 4: open centre channel sweep gas channel C, the gasification furnace gas is replaced;
Step 5: after completing the interior gas displacement of vapourizing furnace, be installed on vapourizing furnace after the conventional igniter burner of industry is lighted;
Step 6: when in vapourizing furnace, temperature maintains regulation roast technic temperature, the powder fuel channel B of solid powder fuel nozzle centre channel 1 is opened, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again oxygen-containing gas passage D is opened, now, under the naked light of the conventional igniter burner of industry is combustion-supporting, the powder fuel in the solid powder fuel nozzle is lighted;
Step 7: close industrial conventional igniter burner after the solid powder fuel nozzle forms stationary flame, now single fire mouth vapourizing furnace startup procedure finishes.
The single fire mouth of take load as 1000t/d for single fire mouth dry coal dust gasification furnace, be example, a kind of solid powder fuel nozzle centre channel 1 of the present invention is made as the vaporising fuel passage, adopts Sweet natural gas as baker and igniter fuel.
The Sweet natural gas flow velocity of the liquid/gas fuel inlet A ' of centre channel 1 is about 40m/s, and Sweet natural gas is installed on burner on vapourizing furnace after being lighted, and other 3 burners is also installed and vapourizing furnace simultaneously, and is opened sweep gas and carry out the burner protection.Along with temperature and pressure in vapourizing furnace rises gradually, in vapourizing furnace, temperature reaches 500 ℃ of left and right, when pressure reaches 1.0MPa, oxygen-containing gas pipeline D is closed, closing Sweet natural gas passage 11, open after centre channel sweep gas pipeline C and the about 30s of circular channel sweep gas pipeline E shut-down purge gas simultaneously, while shut-down purge gas after about 30s, open successively powder fuel pipeline B and oxygen-containing gas pipeline D, by igniter burner or burning torch, burner is lighted, extinguished igniter burner or burning torch after waiting steady combustion.Above process implementation powder fuel vapourizing furnace baker and the normal production whole process of same burner.
From above-mentioned test, the above gasification burner tip cooling system adopts 250 ℃ of saturation waters to enter cooling jacket 4 as refrigerant 30, and flow control is 7.0kg/s, obtains cooling water outlet temperature through test and is about 251.5 ℃; Burner is greater than 8000 hours work-ing life; Coal dust and vaporized chemical carry out partial oxidation reaction at vapourizing furnace, and efficiency of carbon conversion reaches more than 99%.
Gasification burner tip of the present invention has merged the function of baker and normal production burner in one, solid powder fuel gas stream bed gasification furnace igniting startup procedure is simplified greatly, reduced running cost, operation stability and reliability have been improved, having realized many raw material switchings of same burner, is a kind of advanced person's novel, high-efficiency multi-function gasification burner tip.
Embodiment 2
As shown in Figure 2, the structural representation of the solid powder fuel nozzle provided for embodiment 2, comprise coaxially arranged centre channel 1 and circular channel 2, and an end of centre channel 1 and an end of circular channel 2 are in the same plane, forms the head of burner; The other end of centre channel 1 exposes from circular channel 2, and this bared end is provided with 3 centre channel entrances 8; Centre channel 1 and circular channel 2 are connected and cut down 10 and be connected and fixed by passage; Circular channel 2 is provided with circular channel entrance 9, and circular channel 9 is communicated with oxygen-containing gas pipeline D, circular channel sweep gas pipeline E respectively; The 2 heads outsides, circular channel are provided with cooling channel 3, and cooling channel 3 and centre channel 1, circular channel 2 are coaxially arranged; The both sides of cooling channel 3 are communicated with coolant entrance 6, coolant outlet 7 respectively, and coolant entrance 6, coolant outlet 7 are fixed in the burner head outside by side cooling jacket 4 and front end joint flange 5.Centre channel 1 is provided with 3 centre channel entrances 8, is respectively liquid/gas fuel inlet A ', powder fuel entrance B ', centre channel sweep gas entrance C '; Liquid/gas fuel inlet A ' is communicated with liquid/gas fuel channel A, and powder fuel entrance B ' is communicated with powder fuel pipeline B, and centre channel sweep gas entrance C ' is communicated with centre channel sweep gas pipeline C.
A kind of solid powder fuel nozzle provided by the invention and using method thereof, its operating process is applicable to respectively different gasifying process technology, and its operation and operating process are also different.
When the gasifying process technology for a plurality of burners, operating process is as follows:
Step 1: all be installed on vapourizing furnace by a plurality of solid powder fuel nozzles, open except each circular channel sweep gas pipeline E for other solid powder fuel nozzles baker solid powder fuel nozzle, centre channel sweep gas pipeline C (sweep gas is rare gas element, can adopt pure nitrogen gas);
Step 2: open the liquid/gas fuel channel 11 of baker solid powder fuel nozzle centre channel 1, close its centre channel sweep gas pipeline C and powder fuel channel B; Then the oxygen-containing gas pipeline D at its circular channel entrance 9 places is opened to (volumetric concentration that oxygen-containing gas is oxygen is 99.6%, other mixed gas that is water vapor), after lighting this baker solid powder fuel nozzle, it is installed on vapourizing furnace, carries out the baker operation;
Step 3: after baker finishes, other solid powder fuel nozzles are closed to circular channel sweep gas pipeline E, centre channel sweep gas pipeline C one by one, open the powder fuel pipeline B of one of them solid powder fuel nozzle, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again oxygen-containing gas pipeline D is opened, now under the naked light of igniting solid powder fuel nozzle is combustion-supporting, powder fuel in the solid powder fuel nozzle is lighted, and to remaining unlit burner, repeats above operation;
Step 4: after lighting other all solid powder fuel nozzles, close oxygen-containing gas pipeline D and the liquid/gas fuel channel A of baker solid powder fuel nozzle, open circular channel sweep gas pipeline E and centre channel sweep gas pipeline C, by sweep gas, purge, open again coal dust channel B and the oxygen channel D of baker solid powder fuel nozzle, under the naked light effect this burner also by stove in naked light light, now complete the pulverized coal ignition process of all burners;
The single fire mouth of take load as 500t/d for four burner dry coal dust gasification furnaces, be example, centre channel 1 be the vaporising fuel passage, the employing Sweet natural gas is as baker and igniter fuel.
In centre channel 1, the Sweet natural gas flow velocity is about 40m/s, and Sweet natural gas is installed on burner on vapourizing furnace after being lighted, and other 3 burners is also installed and vapourizing furnace simultaneously, and is opened sweep gas and carry out the burner protection.Along with temperature and pressure in vapourizing furnace rises gradually, in vapourizing furnace, temperature reaches 500 ℃ of left and right, when pressure reaches 1.0MPa, cut off the protection gas of one of them burner, its powder fuel pipeline B is opened, open again oxygen-containing gas pipeline D according to calculating the waiting time, coal dust and oxygen-containing gas are lighted rapidly at the combustion-supporting lower of naked light, successively the third and fourth burner is carried out to same operation subsequently, after three burners are all lighted also stable burning, the first burner oxygen-containing gas pipeline D is closed, closing Sweet natural gas passage 11, open after centre channel sweep gas pipeline C and the about 30s of circular channel sweep gas pipeline E shut-down purge gas simultaneously, open successively powder fuel pipeline B and oxygen-containing gas pipeline D, reach stable burning owing to now having three burners, the 4th coal dust that burner sprays into and oxygen-containing gas will be lighted rapidly.Above process implementation the powder fuel vapourizing furnace baker of same burner, igniting and normal production whole process.
From above-mentioned test, the above gasification burner tip cooling system adopts 250 ℃ of saturation waters to enter burner cooling jacket 4 as refrigerant 30, and flow control is 3.5kg/s, obtains cooling water outlet temperature through test and is about 251.5 ℃; Burner is greater than 8000 hours work-ing life; Coal dust and vaporized chemical carry out partial oxidation reaction at vapourizing furnace, and efficiency of carbon conversion reaches more than 99%.
Claims (9)
1. a solid powder fuel nozzle, it is characterized in that, comprise coaxially arranged centre channel (1) and circular channel (2), an end of an end of centre channel (1) and circular channel (2) is in the same plane, forms the head of burner; The other end of centre channel (1) exposes from circular channel (2), and this bared end is provided with 1～3 centre channel entrance (8); Centre channel (1) and circular channel (2) are connected and cut down (10) and be connected and fixed by passage; Circular channel (2) is provided with circular channel entrance (9), and circular channel (9) are communicated with oxygen-containing gas pipeline (D), circular channel sweep gas pipeline (E) respectively; The head outside in circular channel (2) is provided with cooling channel (3), and cooling channel (3) and centre channel (1), circular channel (2) are coaxially arranged; The both sides of cooling channel (3) are communicated with coolant entrance (6), coolant outlet (7) respectively, and coolant entrance (6), coolant outlet (7) are fixed in the burner head outside by side cooling jacket (4) and front end joint flange (5).
2. a kind of solid powder fuel nozzle as claimed in claim 1, it is characterized in that, described centre channel (1) is provided with a centre channel entrance (8), and this centre channel entrance (8) is communicated with liquid/gas fuel channel (A), powder fuel pipeline (B), centre channel sweep gas pipeline (C) respectively.
3. a kind of solid powder fuel nozzle as claimed in claim 1, it is characterized in that, described centre channel (1) is provided with 3 centre channel entrances (8), is respectively liquid/gas fuel inlet (A '), powder fuel entrance (B '), centre channel sweep gas entrance (C '); The liquid/gas fuel inlet (A ') with liquid/gas fuel channel (A), be communicated with, the powder fuel entrance (B ') with powder fuel pipeline (B), be communicated with, centre channel sweep gas entrance (C ') with centre channel sweep gas pipeline (C), be communicated with.
4. the using method of the described a kind of solid powder fuel nozzle of claim 2 or 3, when the gasifying process technology for single burner, is characterized in that, operating process is as follows:
Step 1): open liquid/gas fuel channel (A), make liquid/gas fuel pass into centre channel (1), closing center's passage sweep gas pipeline (C) and powder fuel pipeline (B);
Step 2): then the oxygen-containing gas pipeline (D) of ingress, circular channel (9) is opened, oxygen-containing gas is passed into to circular channel (2), burner is installed on vapourizing furnace after lighting the solid powder fuel nozzle, carry out the baker operation;
Step 3) after baker finishes, first close oxygen-containing gas pipeline (D), then closing liquid/geseous fuel pipeline (A) passes into;
Step 4): open centre channel sweep gas passage (C), the gasification furnace gas is replaced;
Step 5): after completing the interior gas displacement of vapourizing furnace, after the conventional igniter burner of industry is lighted, be installed on vapourizing furnace;
Step 6): when in vapourizing furnace, temperature maintains regulation roast technic temperature, the powder fuel passage (B) of solid powder fuel nozzle centre channel (1) is opened, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again oxygen-containing gas passage (D) is opened, now, under the naked light of the conventional igniter burner of industry is combustion-supporting, the powder fuel in the solid powder fuel nozzle is lighted;
Step 7): close industrial conventional igniter burner after the solid powder fuel nozzle forms stationary flame, now single fire mouth vapourizing furnace startup procedure finishes.
5. the using method of a kind of solid powder fuel nozzle as claimed in claim 4, is characterized in that, in described oxygen-containing gas, the volumetric concentration of oxygen is more than or equal to 21%.
6. the using method of a kind of solid powder fuel nozzle as claimed in claim 4, is characterized in that, described sweep gas is rare gas element, and described rare gas element is argon gas, nitrogen or helium.
7. the using method of the described a kind of solid powder fuel nozzle of claim 2 or 3, when the gasifying process technology for a plurality of burners, is characterized in that, operating process is as follows:
Step 1): a plurality of solid powder fuel nozzles all are installed on vapourizing furnace, open except each circular channel sweep gas pipeline (E), centre channel sweep gas pipeline (C) for other solid powder fuel nozzles baker solid powder fuel nozzle;
Step 2): open the liquid/gas fuel channel (11) of baker solid powder fuel nozzle centre channel (1), close its centre channel sweep gas pipeline (C) and powder fuel passage (B); Then the oxygen-containing gas pipeline (D) of its circular channel entrance (9) being located is opened, and it is installed on vapourizing furnace after lighting this baker solid powder fuel nozzle, carries out the baker operation;
Step 3): after baker finishes, other solid powder fuel nozzles are closed to circular channel sweep gas pipeline (E), centre channel sweep gas pipeline (C) one by one, open the powder fuel pipeline (B) of one of them solid powder fuel nozzle, arrive the burner front end spout time according to tube side length and powder fuel flow velocity estimation powder fuel, again oxygen-containing gas pipeline (D) is opened, now under the naked light of igniting solid powder fuel nozzle is combustion-supporting, powder fuel in the solid powder fuel nozzle is lighted, and to remaining unlit burner, repeats above operation;
Step 4): after lighting other all solid powder fuel nozzles, close oxygen-containing gas pipeline (D) and the liquid/gas fuel channel (A) of baker solid powder fuel nozzle, open circular channel sweep gas pipeline (E) and centre channel sweep gas pipeline (C), purge by sweep gas;
Step 5): open again oxygen-containing gas passage (D) and powder fuel pipeline (B) after purging, now this solid powder fuel nozzle sprays into logistics and lights rapidly at the combustion-supporting lower quilt of other solid powder fuel nozzle naked lights, now completes the ignition process of all burners.
8. the using method of a kind of solid powder fuel nozzle as claimed in claim 7, is characterized in that, in described oxygen-containing gas, the volumetric concentration of oxygen is more than or equal to 21%.
9. the using method of a kind of solid powder fuel nozzle as claimed in claim 7, is characterized in that, described sweep gas is rare gas element, and described rare gas element is argon gas, nitrogen or helium.
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| CN104987889A (en) * | 2015-07-07 | 2015-10-21 | 杭州全合科技有限公司 | Second-segment entrained flow bed gasification method |
| 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 |
| CN107033972A (en) * | 2017-05-09 | 2017-08-11 | 哈尔滨工业大学 | A kind of dry coal powder airflow bed gasification furnace burner with purging gas shielded |
| CN111349471A (en) * | 2018-12-24 | 2020-06-30 | 国家能源投资集团有限责任公司 | Burner and gasification furnace with same |
| CN113154393A (en) * | 2021-04-07 | 2021-07-23 | 北京航化节能环保技术有限公司 | Integrated gun for start-up burner, use method and industrial furnace |
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| CN104987889B (en) * | 2015-07-07 | 2017-08-15 | 杭州全合科技有限公司 | A kind of two-period form entrained flow gasification method |
| 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 |
| CN106765096B (en) * | 2016-12-30 | 2024-01-02 | 上海泽玛克敏达机械设备有限公司 | Gasification furnace guiding burner |
| CN107033972A (en) * | 2017-05-09 | 2017-08-11 | 哈尔滨工业大学 | A kind of dry coal powder airflow bed gasification furnace burner with purging gas shielded |
| CN111349471A (en) * | 2018-12-24 | 2020-06-30 | 国家能源投资集团有限责任公司 | Burner and gasification furnace with same |
| CN111349471B (en) * | 2018-12-24 | 2021-02-26 | 国家能源投资集团有限责任公司 | Burner and gasification furnace with same |
| CN113154393A (en) * | 2021-04-07 | 2021-07-23 | 北京航化节能环保技术有限公司 | Integrated gun for start-up burner, use method and industrial furnace |
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| CN103484166B (en) | 2015-07-15 |
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