CN102062396A - Composite concentration triple-wind-regulating low-NOx cyclone pulverized-coal burner - Google Patents
Composite concentration triple-wind-regulating low-NOx cyclone pulverized-coal burner Download PDFInfo
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- CN102062396A CN102062396A CN2010105064266A CN201010506426A CN102062396A CN 102062396 A CN102062396 A CN 102062396A CN 2010105064266 A CN2010105064266 A CN 2010105064266A CN 201010506426 A CN201010506426 A CN 201010506426A CN 102062396 A CN102062396 A CN 102062396A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention relates to a composite concentration triple-wind-regulating low-NOx cyclone pulverized-coal burner which comprises a central wind passage, wherein a primary wind passage, an internal direct-flow secondary wind passage, an internal rotational-flow secondary wind passage and an external rotational-flow secondary wind passage are sequentially and concentrically arranged at the outer side of the central wind passage from inside to outside, a conical pulverized-coal concentrating device and a star-shaped pulverized-coal concentrating device are arranged in the primary wind passage, and a reversed V-shaped expanded opening and a zigzag axial and radial double concave-convex structured burning-stabilizing device are arranged at the outlet of the primary wind passage; and after primary wind passes through the pulverized-coal concentrating device, an intense standing-vortex burning-stabilizing firing area with obvious circumferential and radial pulverized-coal concentration distribution is formed at the outlet of the burner, and the burning conditions of high-temperature reflow smoke gas and oxygen-deficient rich fuel are generated. The burner has extremely strong firing-stabilizing performance and good coal adaptability and effectively reduces the concentration of nitrogen oxides.
Description
Technical field
The invention belongs to a kind of coal burner, particularly a kind of burner outlet place coal powder density is along the low NO of three accent wind circumferential and radially compound deep or light distribution
XVortex burner.
Background technology
After advanced combustion technology such as coal powder light-dark technology, grading combustion technology occurs, turbulent burner not only can highly organized Furnace Aerodynamic Field, produce rational ignition zone breeze airflow CONCENTRATION DISTRIBUTION, the pulverized coal particle time of staying and ignition distance, guarantee smooth combustion, and can reduce NO in a large number
XDischarging.Advantages such as simultaneously, the turbulent burner burning has relative independence, and layout is all relative flexible with adjustment, and the deviation of flue gas temperature of hearth outlet and vapor (steam) temperature is less.Therefore, turbulent burner has obtained using widely on the large-scale power station coal-burning boiler.
Although turbulent burner has plurality of advantages, and operation conditions is good both at home and abroad, but turbulent burner is unsatisfactory in China's operating position, and boiler catch fire postponement, colm catch fire difficulty, combustion instability, low-load combustion-stabilizing ability, serious, the NO of slagging scorification appear in many power plant in actual motion
XProblem such as discharge capacity exceeds standard and reheater spray desuperheating amount is excessive.Tracing it to its cause, mainly is because China's steam coal presents the characteristics that coal is changeable, ature of coal is relatively poor.Simultaneously, for the variation that adapts to network load and increasingly serious environmental requirement, the low-load combustion-stabilizing ability of boiler and low NO
XEmission request improves constantly.
For this reason, novel turbulent burner generally adopts the swirl strength of strengthening primary and secondary air, or steady combustion tooth (ring) is installed in a wind outlet additional, or change technology such as burner outlet shape and improve combustion position, as: Chinese invention patent 03134317.1. " a kind of radially gradation double is transferred the wind vortex burner " in burner nozzle installs additional external tooth form ring, Chinese invention patent 200410041107 " petal-shaped combustion stabilizer of turbulent burner " with a wind snout petalody shape etc.However, existing turbulent burner is for adaptability, low-load combustion-stabilizing ability, the low NO of coal
XAspects such as discharging still do not obtain fine solution.
Summary of the invention
In order further to improve combustion position, overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of coal powder density along circumferential and radially compound deep or light distribution, combustion stability is good, the low NO of compound deep or light three accent wind that coal adaptability is wide
XVortex burner.
For achieving the above object, the technical solution used in the present invention is: a kind of compound deep or light three transfer the low NO of wind
XVortex burner, comprise oil gun 1, in oil gun 1 outside from inside to outside successively arranged concentric center wind duct 2 is arranged, a wind path 10, interior direct current secondary air channel 11, interior eddy flow secondary air channel 12, outer eddy flow secondary air channel 13, in wind path 10, wear ring 3 is arranged along general mood flow path direction arranged concentric successively, taper Pulverized Coal Concentration device 5 and star Pulverized Coal Concentration device 7, direct current secondary wind was transferred windshield plate 4 in interior eddy flow secondary air channel 12 import departments were provided with, swirl secondary air swirl-flow devices 6 in being provided with in the interior eddy flow secondary air channel 12, outer eddy flow secondary air channel 13 porch ecto-entads are disposed with outer secondary wind and transfer windshield plate 15 and outer secondary wind swirl-flow devices 14, wind path 10 exit is provided with down vertically and radially concave-concave male structure smooth combustion apparatus 16 of the enlarging 8 of " people " font and zigzag, and interior eddy flow secondary air channel 12 exits and outer eddy flow secondary air channel 13 exits are respectively equipped with taper enlarging 9 and taper enlarging 17.
Described taper Pulverized Coal Concentration device 5 is composed in series by one or more taper eseparation rings, the more microscler one-tenth axial transitions of last eseparation ring afterbody district, each taper eseparation ring is the bullet that the import cross section is big, the outlet is little of a hollow, its big end in import cross section places the flow path direction that comes of a wind, and its outlet places the flow path direction that goes of a wind.
Described star Pulverized Coal Concentration device 7 comprises the cylindrical section 25 of arranged concentric in center wind duct 2 outsides, cylindrical section 25 is connected by gripper shoe 19 with center wind duct 2, cylindrical section 25 outsides dispose panel-like member 18, and panel-like member 18 is made up of the leading edge portion, core, the rear edge part that connect successively.The leading edge portion of described panel-like member 18 is narrow and long than rear edge part, and core is long to be leading edge portion and rear edge part smooth connection part; The core side is a writing board shape, and burner axis is positioned at this plate level.
Described " people " font enlarging 8 comprises short pin 26 and long pin 27, short pin 26 is a wind path 10 prolongation, long pin 27 is arranged in short pin 26 outsides and is 5～10 ° with short pin 26, and direct current secondary wind expands outwardly by long pin 27, reduces NO thereby prolong the reducing zone size
XDischarging, and, strengthen coal powder ignition lacking the little recirculating zone of stroke between pin 26 and long pin 27 angles.
Described zigzag vertically and radially concave-concave male structure smooth combustion apparatus 16 is a circulus, be spaced dense phase pulverized coal on it and surely fired tooth 20 and dilute phase coal-powder steady flame tooth 21, said dense phase pulverized coal is surely fired the length of the length of tooth 20 less than dilute phase coal-powder steady flame tooth 21, said dense phase pulverized coal is surely fired the thickness of the thickness of tooth 20 greater than dilute phase coal-powder steady flame tooth 21, configuration one through hole 28 on the said dilute phase coal-powder steady flame tooth 21, the vertically and radially concave-concave male structure of overall indention.
Swirl secondary air swirl-flow devices 6 is axial adjustable cyclone in described.
Described outer secondary wind swirl-flow devices 14 is tangential adjustable cyclone.
The present invention utilizes NO
XThe reduction reaction method reduces NO
XDischarging, promptly in flame, form the oxygen deprivation zone that oxygen content is lower, the NO that burning produces
XThe NO that nitrogenous composition produces in by coal dust in the reduction flame region
XReducing substances (ammonia, hydrogen cyanide etc.) is reduced into harmless nitrogen molecular, thereby reduces the NO that flame produced
XFor reaching above purpose, the present invention is except that adopting grading combustion technology, and key is coal dust is ignited rapidly and to quicken the consumption of oxygen, thereby enlarges NO
XThe reducing zone.
For the coal dust that can ignite rapidly, the present invention is mainly by following measure: the light breeze airflow in dense peripheries in the middle of 1) forming by taper Pulverized Coal Concentration device 5 forms along the circumferential direction deep or light alternate and breeze airflow that core is dense by star Pulverized Coal Concentration device 7 again.Because high concentration pulverized coal is distributed in the burner center line radially,, then can realize the high speed propagation of flame from the periphery to the middle part in case peripheral thick coal culm catches fire.2) wind path 10 spout place adopts vertically and radially concave-concave male structure smooth combustion apparatus 16 of zigzag, the steady combustion of thick coal culm outlet tooth protrudes and is highly lower, the steady combustion of thin powdered coal outlet mark of mouth falls into and is high highly slightly, can strengthen coal powder ignition smooth combustion, can reduce gas-flow resistance again, alleviate wearing and tearing, increase the service life of tooth.3) introduce the direct current secondary wind and " people " font enlarging 8 of falling, the secondary windshield plate makes direct current secondary wind have proper speed in regulating, and guarantees that direct current secondary wind has enough rigidity, adopts " people " font enlarging 8 further to increase direct current secondary wind range; The introducing meeting of direct current wind is being equivalent to have increased a gaseous state bluff body in a wind exit, promoting high-temperature flue gas to reflux to a general mood stream root mixes, but form the lower slightly transition region of one deck oxygen supply, postponed mixing of wind and interior secondary wind, proper extension NO
XNO has further been reduced in the reducing zone
XProduce.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of taper Pulverized Coal Concentration device 5 of the present invention.
Fig. 3 (a) is the three-dimensional structure schematic diagram of star Pulverized Coal Concentration device 7 of the present invention.
Fig. 3 (b) is the front-view schematic diagram of star Pulverized Coal Concentration device 7 of the present invention.
Fig. 3 (c) is the schematic top plan view of star Pulverized Coal Concentration device 7 of the present invention.
Fig. 4 is the structural representation of " people " font enlarging 8 of the present invention.
Fig. 5 (a) is the three-dimensional structure schematic diagram of smooth combustion apparatus 16 of the present invention.
Fig. 5 (b) is the front-view schematic diagram of smooth combustion apparatus 16 of the present invention.
Fig. 5 (c) is the schematic rear view of smooth combustion apparatus 16 of the present invention.
Fig. 6 is the design sketch of Pulverized Coal Concentration device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, a kind of compound deep or light three transfer the low NO of wind
XVortex burner, comprise oil gun 1, in oil gun 1 outside from inside to outside successively arranged concentric center wind duct 2 is arranged, a wind path 10, interior direct current secondary air channel 11, interior eddy flow secondary air channel 12, outer eddy flow secondary air channel 13, in wind path 10, wear ring 3 is arranged along general mood flow path direction arranged concentric successively, taper Pulverized Coal Concentration device 5 and star Pulverized Coal Concentration device 7, direct current secondary wind was transferred windshield plate 4 in interior eddy flow secondary air channel 12 import departments were provided with, swirl secondary air swirl-flow devices 6 in being provided with in the interior eddy flow secondary air channel 12, described interior swirl secondary air swirl-flow devices 6 is axial adjustable cyclone; Outer eddy flow secondary air channel 13 porch ecto-entads are disposed with outer secondary wind and transfer windshield plate 15 and outer secondary wind swirl-flow devices 14, and described outer secondary wind swirl-flow devices 14 is tangential adjustable cyclone; Wind path 10 exit is provided with down vertically and radially concave-concave male structure smooth combustion apparatus 16 of the enlarging 8 of " people " font and zigzag, and interior eddy flow secondary air channel 12 exits and outer eddy flow secondary air channel 13 exits are respectively equipped with taper enlarging 9 and taper enlarging 17.
Referring to Fig. 2, taper Pulverized Coal Concentration device 5 of the present invention is composed in series by one or more taper eseparation rings, the more microscler one-tenth axial transitions of last eseparation ring afterbody district, each taper eseparation ring is the bullet that the import cross section is big, the outlet is little of a hollow, its big end in import cross section places the flow path direction that comes of a wind, and its outlet places the flow path direction that goes of a wind.
Referring to Fig. 3, star Pulverized Coal Concentration device 7 of the present invention comprises the cylindrical section 25 of arranged concentric in center wind duct 2 outsides, cylindrical section 25 is connected by gripper shoe 19 with center wind duct 2, cylindrical section 25 outsides dispose panel-like member 18, and panel-like member 18 is made up of the leading edge portion, core, the rear edge part that connect successively.The leading edge portion of described panel-like member 18 is narrow and long than rear edge part, and core is long to be leading edge portion and rear edge part smooth connection part; The core side is a writing board shape, and burner axis is positioned at this plate level.
Referring to Fig. 4, " people " font enlarging 8 of the present invention comprises short pin 26 and long pin 27, and short pin 26 is a wind path 10 prolongation, and long pin 27 is arranged in short pin 26 outsides and is 5～10 ° with short pin 26, direct current secondary wind expands outwardly by long pin 27, reduces NO thereby prolong the reducing zone size
XDischarging, and, strengthen coal powder ignition lacking the little recirculating zone of stroke between pin 26 and long pin 27 angles.
Referring to Fig. 5, zigzag among the present invention vertically and radially concave-concave male structure smooth combustion apparatus 16 is a circulus, be spaced dense phase pulverized coal on it and surely fired tooth 20 and dilute phase coal-powder steady flame tooth 21, said dense phase pulverized coal is surely fired the length of the length of tooth 20 less than dilute phase coal-powder steady flame tooth 21, said dense phase pulverized coal is surely fired the thickness of the thickness of tooth 20 greater than dilute phase coal-powder steady flame tooth 21, configuration one through hole 28 on the said dilute phase coal-powder steady flame tooth 21, the vertically and radially concave-concave male structure of overall indention.
Referring to Fig. 6, the light breeze airflow in dense periphery in the middle of the present invention forms by taper Pulverized Coal Concentration device 5, form along the circumferential direction deep or light alternate and breeze airflow that core is dense by star Pulverized Coal Concentration device 7 again, comprising center concentrated phase area 23, circumferentially concentrated phase area 22, circumferential dilute-phase zone 24.Because high concentration pulverized coal is distributed in the burner center line radially, in case peripheral circumferentially concentrated phase area 22 coal powder ignitions, the center concentrated phase area 23 that then can ignite rapidly, thus realize the high speed propagation of flame from the periphery to the middle part, help catching fire and burning of colm.
The present invention utilizes NO
XThe reduction reaction method reduces NO
XDischarging, promptly in flame, form the oxygen deprivation zone that oxygen content is lower, the NO that burning produces
XThe NO that nitrogenous composition produces in by coal dust in the reduction flame region
XReducing substances (ammonia, hydrogen cyanide etc.) is reduced into harmless nitrogen molecular, thereby reduces the NO that flame produced
XFor reaching above purpose, the present invention is except that adopting grading combustion technology, and key is coal dust is ignited rapidly and to quicken the consumption of oxygen, thereby enlarges NO
XThe reducing zone.
For the coal dust that can ignite rapidly, the present invention is mainly by following measure:
1), forms along the circumferential direction deep or light alternate and breeze airflow (circumferentially deep or light) that core is dense by star Pulverized Coal Concentration device 7 again by the light breeze airflow (radially deep or light) in dense periphery, taper Pulverized Coal Concentration device 5 formation centers.Because high concentration pulverized coal is distributed in the burner center line radially,, then can realize the high speed propagation of flame from the periphery to the middle part in case peripheral thick coal culm catches fire.
2) wind path 10 spout place adopts vertically and radially concave-concave male structure smooth combustion apparatus 16 of zigzag.Thick coal culm 22 outlet dense phase pulverized coal are fired surely that tooth 20 protrudes vertically and are highly lower, thin powdered coal 24 outlet dilute phase coal-powder steady flame teeth 21 are depression and high highly slightly vertically, can increase coal dust and contact the circumference area with air, strengthen coal powder ignition smooth combustion, can reduce gas-flow resistance again, alleviate wearing and tearing, increase the service life of tooth.
3) introduce the direct current secondary air channel 11 and " people " font enlarging 8 of falling.Direct current secondary windshield plate 4 makes direct current secondary wind 11 have proper speed in regulating, and guarantees that direct current secondary wind has enough rigidity, adopts " people " font enlarging 8 further to increase direct current secondary wind range.The introducing meeting of direct current wind is being equivalent to have increased a gaseous state bluff body in a wind exit, promoting high-temperature flue gas to reflux to a general mood stream root mixes, but form the lower slightly transition region of one deck oxygen supply, postponed mixing of wind and interior secondary wind, suitably expanded NO
XNO has further been reduced in the reducing zone
XProduce.
Comprehensive above 3 measures and grading combustion technology, the present invention can accomplish extremely low NO
XDischarging is well below environmental emission standard.
Zigzag is provided with different tooth depths with concave-concave male structure smooth combustion apparatus 16 radially according to the concentration of breeze airflow is different vertically among the present invention, thick coal culm 22 outlet dense phase pulverized coal fire surely that tooth 20 protrudes vertically and highly lower (only providing igniting required high temperature gases recirculating amount), and thin powdered coal 24 outlet dilute phase coal-powder steady flame teeth 21 cave in and center drilling height high slightly (the required oxygen that catches fire rapidly only is provided) vertically.Because low, the dilute-phase zone tooth perforate of concentrated phase area tooth is so whole smooth combustion apparatus is less to the resistance that burner brings.
Claims (8)
1. transfer the low NO of wind for one kind compound deep or light three
XVortex burner, comprise oil gun (1), it is characterized in that: in oil gun (1) outside from inside to outside successively arranged concentric center wind duct (2) is arranged, a wind passage (10), interior direct current secondary air channel (11), interior eddy flow secondary air channel (12), outer eddy flow secondary air channel (13), in a wind passage (10), wear ring (3) is arranged along general mood flow path direction arranged concentric successively, taper Pulverized Coal Concentration device (5) and star Pulverized Coal Concentration device (7), direct current secondary wind was transferred windshield plate (4) in interior eddy flow secondary air channel (12) import department was provided with, swirl secondary air swirl-flow devices (6) in being provided with in the interior eddy flow secondary air channel (12), outer eddy flow secondary air channel (13) porch ecto-entad is disposed with outer secondary wind and transfers windshield plate (15) and outer secondary wind swirl-flow devices (14), a wind passage (10) exit is provided with down vertically and radially concave-concave male structure smooth combustion apparatus (16) of " people " font enlarging (8) and zigzag, and interior eddy flow secondary air channel (12) exit and outer eddy flow secondary air channel (13) exit are respectively equipped with taper enlarging (9) and taper enlarging (17).
2. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner, it is characterized in that: described taper Pulverized Coal Concentration device (5) is composed in series by one or more taper eseparation rings, the more microscler one-tenth axial transitions of last eseparation ring afterbody district, each taper eseparation ring is the bullet that the import cross section is big, the outlet is little of a hollow, its big end in import cross section places the flow path direction that comes of a wind, and its outlet places the flow path direction that goes of a wind.
3. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner, it is characterized in that: described star Pulverized Coal Concentration device (7) comprises the cylindrical section (25) of arranged concentric in center wind duct (2) outside, cylindrical section (25) is connected by gripper shoe (19) with center wind duct (2), cylindrical section (25) outside disposes panel-like member (18), and panel-like member (18) is made up of the leading edge portion, core, the rear edge part that connect successively.
4. according to claim 3 a kind of compound deep or light three transfer the low NO of wind
XVortex burner is characterized in that: the leading edge portion of described panel-like member (18) is narrow and long than rear edge part, and core is long to be leading edge portion and rear edge part smooth connection part; The core side is a writing board shape, and burner axis is positioned at this plate level.
5. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner, it is characterized in that: described " people " font enlarging 8 comprises short pin (26) and long pin (27), short pin (26) is a wind passage (a 10) prolongation, and long pin (27) is arranged in short pin (26) outside and is 5～10 ° with short pin (26).
6. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner, it is characterized in that: described zigzag vertically and radially concave-concave male structure smooth combustion apparatus (16) is a circulus, be spaced dense phase pulverized coal on it and surely fired tooth (20) and dilute phase coal-powder steady flame tooth (21), said dense phase pulverized coal is surely fired the length of the length of tooth (20) less than dilute phase coal-powder steady flame tooth (21), said dense phase pulverized coal is surely fired the thickness of the thickness of tooth (20) greater than dilute phase coal-powder steady flame tooth (21), said dilute phase coal-powder steady flame tooth (21) is gone up configuration one through hole (28), the vertically and radially concave-concave male structure of overall indention.
7. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner is characterized in that: swirl secondary air swirl-flow devices (6) is axial adjustable cyclone in described.
8. according to claim 1 a kind of compound deep or light three transfer the low NO of wind
XVortex burner is characterized in that: described outer secondary wind swirl-flow devices (14) is tangential adjustable cyclone.
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| CN2010105064266A CN102062396B (en) | 2010-10-13 | 2010-10-13 | Composite concentration triple-wind-regulating low-NOx cyclone pulverized-coal burner |
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Cited By (17)
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| CN102252338A (en) * | 2011-06-08 | 2011-11-23 | 西安交通大学 | Concentric double-casing strong-turbulence secondary air spray pipe structure |
| CN102500551A (en) * | 2011-09-29 | 2012-06-20 | 华中科技大学 | Device for separating rough and fine coal powder in pipeline |
| CN102679339A (en) * | 2012-06-05 | 2012-09-19 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| CN103017161A (en) * | 2012-12-19 | 2013-04-03 | 上海锅炉厂有限公司 | Swirl pulverized coal burner |
| EP2597367A1 (en) * | 2011-05-27 | 2013-05-29 | Shanghai Boiler Works, Ltd. | Dense-phase swirl pulverized coal burner |
| CN103759259A (en) * | 2014-01-13 | 2014-04-30 | 徐州燃控科技股份有限公司 | Intensive-classification low-NOx pulverized coal burner |
| CN103759258A (en) * | 2014-01-13 | 2014-04-30 | 徐州燃控科技股份有限公司 | Fuel-saving/gas-ignition stable-combustion low-nitrogen swirling pulverized coal combustor |
| CN103836621A (en) * | 2012-11-21 | 2014-06-04 | 烟台龙源电力技术股份有限公司 | Graded burning low-NOx turbulent burner |
| CN104154532A (en) * | 2014-08-11 | 2014-11-19 | 北京巴布科克·威尔科克斯有限公司 | Center air ring concentrated type turbulent burner |
| CN105737145A (en) * | 2016-02-26 | 2016-07-06 | 郑州轻工业学院 | Reinforcement and concentration type cyclone pulverized coal burner |
| CN106287690A (en) * | 2016-08-08 | 2017-01-04 | 东南大学 | A kind of turbulent burner |
| CN108413388A (en) * | 2018-05-07 | 2018-08-17 | 上海交通大学 | A kind of low nitrogen turbulent burner of wind powder peripheral orientation polarization |
| CN109737393A (en) * | 2019-02-19 | 2019-05-10 | 沈阳环境科学研究院 | Big Pulverized Coal Concentration is than postponing hybrid vortex burner |
| CN112050198A (en) * | 2020-08-19 | 2020-12-08 | 神华神东电力有限责任公司 | Boiler system |
| CN112481486A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | System and method for reducing nitrogen oxide discharge of chain grate-rotary kiln |
| CN115949936A (en) * | 2022-11-01 | 2023-04-11 | 天津大学 | Water-spraying hydrogenation gas-solid phase two-phase burner for ultralow-nitrogen ammonia coal co-combustion |
| JP7396186B2 (en) | 2020-04-30 | 2023-12-12 | 株式会社Ihi | powder fuel burner |
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| EP2597367A4 (en) * | 2011-05-27 | 2014-10-29 | Shanghai Boiler Works Ltd | Dense-phase swirl pulverized coal burner |
| EP2597367A1 (en) * | 2011-05-27 | 2013-05-29 | Shanghai Boiler Works, Ltd. | Dense-phase swirl pulverized coal burner |
| CN102252338A (en) * | 2011-06-08 | 2011-11-23 | 西安交通大学 | Concentric double-casing strong-turbulence secondary air spray pipe structure |
| CN102500551A (en) * | 2011-09-29 | 2012-06-20 | 华中科技大学 | Device for separating rough and fine coal powder in pipeline |
| CN102679339A (en) * | 2012-06-05 | 2012-09-19 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| CN102679339B (en) * | 2012-06-05 | 2014-05-07 | 唐山市金沙工贸有限公司 | Pulverized coal burner |
| CN103836621A (en) * | 2012-11-21 | 2014-06-04 | 烟台龙源电力技术股份有限公司 | Graded burning low-NOx turbulent burner |
| CN103017161A (en) * | 2012-12-19 | 2013-04-03 | 上海锅炉厂有限公司 | Swirl pulverized coal burner |
| CN103017161B (en) * | 2012-12-19 | 2016-02-03 | 上海锅炉厂有限公司 | A kind of vortex burner |
| CN103759259B (en) * | 2014-01-13 | 2016-06-15 | 徐州科融环境资源股份有限公司 | Strengthening classification low-NOx pulverized coal burner |
| CN103759258A (en) * | 2014-01-13 | 2014-04-30 | 徐州燃控科技股份有限公司 | Fuel-saving/gas-ignition stable-combustion low-nitrogen swirling pulverized coal combustor |
| CN103759259A (en) * | 2014-01-13 | 2014-04-30 | 徐州燃控科技股份有限公司 | Intensive-classification low-NOx pulverized coal burner |
| CN103759258B (en) * | 2014-01-13 | 2016-06-15 | 徐州科融环境资源股份有限公司 | A kind of joint low nitrogen vortex burner of oil/gas ignition smooth combustion |
| CN104154532A (en) * | 2014-08-11 | 2014-11-19 | 北京巴布科克·威尔科克斯有限公司 | Center air ring concentrated type turbulent burner |
| CN105737145A (en) * | 2016-02-26 | 2016-07-06 | 郑州轻工业学院 | Reinforcement and concentration type cyclone pulverized coal burner |
| CN106287690A (en) * | 2016-08-08 | 2017-01-04 | 东南大学 | A kind of turbulent burner |
| CN108413388A (en) * | 2018-05-07 | 2018-08-17 | 上海交通大学 | A kind of low nitrogen turbulent burner of wind powder peripheral orientation polarization |
| CN108413388B (en) * | 2018-05-07 | 2023-11-28 | 上海交通大学 | Low-nitrogen cyclone burner with circumferentially offset wind powder |
| CN109737393A (en) * | 2019-02-19 | 2019-05-10 | 沈阳环境科学研究院 | Big Pulverized Coal Concentration is than postponing hybrid vortex burner |
| CN109737393B (en) * | 2019-02-19 | 2024-02-27 | 沈阳环境科学研究院 | Large coal powder concentration ratio postpone mixed type cyclone coal powder burner |
| JP7396186B2 (en) | 2020-04-30 | 2023-12-12 | 株式会社Ihi | powder fuel burner |
| CN112050198A (en) * | 2020-08-19 | 2020-12-08 | 神华神东电力有限责任公司 | Boiler system |
| CN112481486A (en) * | 2020-12-04 | 2021-03-12 | 鞍钢集团矿业有限公司 | System and method for reducing nitrogen oxide discharge of chain grate-rotary kiln |
| CN115949936A (en) * | 2022-11-01 | 2023-04-11 | 天津大学 | Water-spraying hydrogenation gas-solid phase two-phase burner for ultralow-nitrogen ammonia coal co-combustion |
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