CN103047657A - High-efficiency low NOx emission swirling burner and burning method thereof - Google Patents
High-efficiency low NOx emission swirling burner and burning method thereof Download PDFInfo
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- CN103047657A CN103047657A CN2012105540153A CN201210554015A CN103047657A CN 103047657 A CN103047657 A CN 103047657A CN 2012105540153 A CN2012105540153 A CN 2012105540153A CN 201210554015 A CN201210554015 A CN 201210554015A CN 103047657 A CN103047657 A CN 103047657A
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Abstract
The invention discloses a high-efficiency low NOx emission swirling burner and a burning method thereof. The swirling burner comprises an internal secondary air pipeline, axially bent swirling vanes and an ignition oil gun are mounted in the internal secondary air pipeline, a primary air pipeline is arranged inside the internal secondary air pipeline, the internal secondary air pipeline is sleeved outside the primary air pipeline, a primary air steady burning expansion cone is arranged in the primary air pipeline, an external secondary air pipeline is sleeved outside the internal secondary air pipeline, adjustable tangential swirling vanes are arranged in the external secondary air pipeline, and an external secondary air nozzle expansion cone is arranged at the end of the external secondary air pipeline. The swirling burner has the advantages that the steady burning expansion cone is mounted in the primary air pipeline, so that the burner can form a stable high-temperature reflow area, flame stability in the sludge burning process is greatly improved, high-efficiency burning of sludge is facilitated by high temperature of a flame area of the burner, and generation of dioxin in the sludge burning process can be reduced.
Description
Technical field
The present invention relates to the technical field of sludge incineration, specifically a kind of high efficiency low NOx drainage turbulent burner, particularly its mechanical connecting structure.
Background technology
Along with China's rapid development of economy, industry and sanitary sewage discharge capacity are increasing, and thing followed sludge quantity is increasing, and sludge of sewage treatment plant is as the byproduct of sewage disposal, if untimely processing will cause serious secondary pollution.Sludge incineration is a kind of minimizing, stabilisation, the method for innocent treatment of sludge dispoal, and this method can be removed moisture in the mud and organic matter fully, kills all pathogen, and can reduce to greatest extent sludge volume.Existing sludge incineration technology has multiple pattern, such as vertical multistage incinerator, drum-type incinerator, spraying incinerator etc., these sludge incineration technology ubiquity poor combustion stability, the NO that produces in the combustion process
xThe problems such as the amount of He bioxin is higher, and the residue phosphorus content that burning produces is high, and combustion apparatus efficient is low have restricted the development of sludge incineration technology, and therefore, the problem that development of new sludge incineration equipment solves current sludge incineration existence has important effect.
Summary of the invention
The object of the present invention is to provide a kind of high efficiency low NOx drainage turbulent burner, solved the NO that produces in the sludge incineration process
xThe problems such as the amount of He bioxin is higher, and the residue phosphorus content that burning produces is high, and combustion apparatus efficient is low.
To achieve these goals, technical scheme of the present invention is: a kind of high efficiency low NOx drainage turbulent burner, it comprises the inner second air pipeline, it is characterized in that: be equiped with the axial bending swirl vane in the pipeline of described inner second air pipeline, torch oil gun also is housed in the pipeline of above-mentioned inner second air pipeline, the inside of inner second air pipeline is provided with wind pipeline one time, the inner second air pipeline is socketed on the wind pipeline outside one time, be provided with the steady right reamer of wind in the described wind pipeline one time, the inner second air pipeline is socketed with the outer second air pipeline outward, be provided with adjustable tangential swirl blade in the described outer second air pipeline, the end of Secondary Air pipeline is provided with outer second air spout reamer outside.
A kind of combustion method of high efficiency low NOx drainage turbulent burner is characterized in that: described combustion method be torch oil gun in the inner second air passage in the sludge incineration of igniting of automatic ignition control down-firing, after sludge incineration is stable, close torch oil gun; The axial bending swirl vane is housed in the pipeline of described inner second air pipeline, interior secondary gas flow forms swirling eddy under the effect of axial bending swirl vane, swirling eddy produces centrifugal force and forms high temperature recirculation zone, lights the mud that enters the recirculating zone from wind passage through steady right reamer of wind; Described outer second air air-flow is forming the outer second air swirling eddy through adjustable tangential swirl blade effect in the Secondary Air pipeline outside, and be formed with the expansion rotating jet of certain expanded-angle under the outside effect of overfire air port reamer, further enlarge the axial length of recirculating zone, the flame of the formation of stabilized sludge burning, guarantee the high-temp combustion zone of mud, and further replenish the oxygen that sludge incineration needs; What described Secondary Air adopted is two wind forms of transferring, the direction of rotation of inside and outside Secondary Air is consistent, in operating process, can change the spin intensity of burner outlet jet by the angle that changes inner second air axial bending blade, the angle of outer second air tangential vane, the high temperature recirculation zone size that forms in the control sludge incineration process; Described secondary air separating is inside and outside Secondary Air two parts, regulates the start position of high temperature recirculation zone and the axial length of recirculating zone by the ratio of controlling inside and outside Secondary Air, and forms the burning of Secondary Air radial grading, reduces the NO that forms in the sludge incineration process
xSteady right reamer is housed in the described wind passage, and steady right reamer can improve the stability of mud air-flow combustion flame.
This case discloses a kind of high efficiency low NOx drainage turbulent burner and combustion method thereof, the invention has the advantages that: 1, in a wind pipeline, installed steady right reamer, be conducive to burner and form stable high temperature recirculation zone, greatly improved the flame holding in the sludge incineration process; 2, the high efficient burning that is conducive to mud of burner flame area temperature also is conducive to reduce the generation of sludge incineration Guo journey Zhong bioxin; 3, because recirculating zone, the center temperature of sludge incineration is high, therefore, the sludge moisture content expanded range that can burn; 4, with secondary air separating be inside and outside Secondary Air two parts, form Secondary Air classification burning and can reduce the NO that forms in the sludge incineration process
x(nitrogen oxide); 5, mud sprays into the position over against recirculating zone, the center core of burner, and the sludge quantity that passes through the recirculating zone, center increases, and the time lengthening that mud passes through is burnt mud under reducing atmosphere, can effectively control fuel type NO
xFormation; 6, the combination of this burner apparatus is simple, can realize automation, and plant maintenance and management are simple, compared to existing technologies, have outstanding substantive distinguishing features and marked improvement.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 be among Fig. 1 A-A to structural representation.
Fig. 3 be among Fig. 1 B-B to structural representation.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The invention discloses a kind of high efficiency low NOx drainage turbulent burner, it comprises inner second air pipeline 1, it is different from prior art and is: be equiped with axial bending swirl vane 2 in the pipeline of described inner second air pipeline 1, torch oil gun 3 also is housed in the pipeline of above-mentioned inner second air pipeline 1, the inside of inner second air pipeline 1 is provided with wind pipeline 4 one time, inner second air pipeline 1 is socketed on wind pipeline 4 outsides one time, be provided with the steady right reamer 5 of wind in the described wind pipeline 4 one time, the inner second air pipeline 1 outer outer second air pipeline 6 that is socketed with, be provided with adjustable tangential swirl blade 7 in the described outer second air pipeline 6, the end of Secondary Air pipeline 6 is provided with outer second air spout reamer 8 outside.
In the specific implementation, form the annular gap between described wind pipeline 4 outer walls and the Secondary Air pipeline 1.
In the specific implementation, the torch oil gun 3 in the described inner second air passage 1 is in the burning of automatic ignition control down-firing.After sludge incineration is stable, close torch oil gun 3.
In the specific implementation, in the described inner second air passage 1, in the situation that close torch oil gun 3, the inner second air air-flow forms swirling eddy under the effect of axial bending swirl vane 2, swirling eddy produces centrifugal force and forms high temperature recirculation zone, lights the mud that enters the recirculating zone from wind passage 4 through steady right reamer 5 of wind.
In the specific implementation, the outer second air air-flow forms the outer second air swirling eddy in outside adjustable tangential swirl blade 7 effects of Secondary Air pipeline 6 interior processes, and be formed with the expansion rotating jet of certain expanded-angle under the outside effect of overfire air port reamer 8, further enlarge the axial length of recirculating zone, the flame of the formation of stabilized sludge burning, guarantee the high-temp combustion zone of mud, and further replenish the oxygen that sludge incineration needs.
In the specific implementation, what burner adopted is two wind forms of transferring, the direction of rotation of inside and outside Secondary Air is consistent, in operating process, can change by change inner second air axial bending blade angle, outer second air tangential vane angle the spin intensity of burner outlet jet, the high temperature recirculation zone size that forms in the control sludge incineration process.
In the specific implementation, be inside and outside Secondary Air two parts with secondary air separating, regulate the start position of high temperature recirculation zone and the axial length of recirculating zone by the ratio of controlling inside and outside Secondary Air, and form the burning of Secondary Air radial grading, reduce the NO that forms in the sludge incineration process
x
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that implementation of the present invention is confined to above-mentioned these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. high efficiency low NOx drainage turbulent burner, it comprises inner second air pipeline (1), it is characterized in that: be equiped with axial bending swirl vane (2) in the pipeline of described inner second air pipeline (1), torch oil gun (3) also is housed in the pipeline of above-mentioned inner second air pipeline (1), the inside of inner second air pipeline (1) is provided with a wind pipeline (4), inner second air pipeline (1) is socketed on a wind pipeline (4) outside, be provided with the steady right reamer (5) of wind in the described wind pipeline (4) one time, the outer outer second air pipeline (6) that is socketed with of inner second air pipeline (1), be provided with adjustable tangential swirl blade (7) in the described outer second air pipeline (6), the end of Secondary Air pipeline (6) is provided with outer second air spout reamer (8) outside.
2. a kind of high efficiency low NOx drainage turbulent burner according to claim 1 is characterized in that: form the annular gap between described wind pipeline (a 4) outer wall and the Secondary Air pipeline (1).
3. the combustion method of a high efficiency low NOx drainage turbulent burner is characterized in that: described combustion method be torch oil gun in the inner second air passage in the sludge incineration of igniting of automatic ignition control down-firing, after sludge incineration is stable, close torch oil gun; The axial bending swirl vane is housed in the pipeline of described inner second air pipeline, interior secondary gas flow forms swirling eddy under the effect of axial bending swirl vane, swirling eddy produces centrifugal force and forms high temperature recirculation zone, lights the mud that enters the recirculating zone from wind passage through steady right reamer of wind; Described outer second air air-flow is forming the outer second air swirling eddy through adjustable tangential swirl blade effect in the Secondary Air pipeline outside, and be formed with the expansion rotating jet of certain expanded-angle under the outside effect of overfire air port reamer, further enlarge the axial length of recirculating zone, the flame of the formation of stabilized sludge burning, guarantee the high-temp combustion zone of mud, and further replenish the oxygen that sludge incineration needs; What described Secondary Air adopted is two wind forms of transferring, the direction of rotation of inside and outside Secondary Air is consistent, in operating process, can change the spin intensity of burner outlet jet by the angle that changes inner second air axial bending blade, the angle of outer second air tangential vane, the high temperature recirculation zone size that forms in the control sludge incineration process; Described secondary air separating is inside and outside Secondary Air two parts, regulates the start position of high temperature recirculation zone and the axial length of recirculating zone by the ratio of controlling inside and outside Secondary Air, and forms the burning of Secondary Air radial grading, reduces the NO that forms in the sludge incineration process
xSteady right reamer is housed in the described wind passage, and steady right reamer can improve the stability of mud air-flow combustion flame.
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| CN2012105540153A CN103047657A (en) | 2012-12-19 | 2012-12-19 | High-efficiency low NOx emission swirling burner and burning method thereof |
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| CN2012105540153A CN103047657A (en) | 2012-12-19 | 2012-12-19 | High-efficiency low NOx emission swirling burner and burning method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758629A (en) * | 2018-07-10 | 2018-11-06 | 东方电气集团东方锅炉股份有限公司 | low nitrogen oxide gas burner |
| CN112443833A (en) * | 2019-09-05 | 2021-03-05 | 中国科学院工程热物理研究所 | Pulverized coal fired boiler with bottom burner and control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598403A (en) * | 2004-09-10 | 2005-03-23 | 清华大学 | Circularly shirl coal powder burn device with various concentration coal powder pipe |
| CN2699136Y (en) * | 2003-09-18 | 2005-05-11 | 郑平安 | Vortex pulverized coal burner |
| CN2869593Y (en) * | 2006-02-14 | 2007-02-14 | 东方日立锅炉有限公司 | Staged-combustion cyclone coal-powder combustor |
| CN101718432A (en) * | 2010-01-08 | 2010-06-02 | 邬照锋 | Swirl injection type pulverized fuel burner |
| CN101949542A (en) * | 2010-04-14 | 2011-01-19 | 华中科技大学 | Three-layered secondary air low nitrogen oxide swirl burner |
| CN202040815U (en) * | 2011-03-09 | 2011-11-16 | 西安交通大学 | Natural gas combustion-supporting industrial pulverized coal cyclone combustor |
| CN102620295A (en) * | 2012-04-13 | 2012-08-01 | 西安康桥能源技术有限责任公司 | Industrial radial concentration dual-air regulation rotational flow coal powder and fuel gas mixed combustor |
| CN102679338A (en) * | 2012-05-30 | 2012-09-19 | 山西蓝天环保设备有限公司 | Efficient coal dust combustor for reducing smoke NOx content |
-
2012
- 2012-12-19 CN CN2012105540153A patent/CN103047657A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699136Y (en) * | 2003-09-18 | 2005-05-11 | 郑平安 | Vortex pulverized coal burner |
| CN1598403A (en) * | 2004-09-10 | 2005-03-23 | 清华大学 | Circularly shirl coal powder burn device with various concentration coal powder pipe |
| CN2869593Y (en) * | 2006-02-14 | 2007-02-14 | 东方日立锅炉有限公司 | Staged-combustion cyclone coal-powder combustor |
| CN101718432A (en) * | 2010-01-08 | 2010-06-02 | 邬照锋 | Swirl injection type pulverized fuel burner |
| CN101949542A (en) * | 2010-04-14 | 2011-01-19 | 华中科技大学 | Three-layered secondary air low nitrogen oxide swirl burner |
| CN202040815U (en) * | 2011-03-09 | 2011-11-16 | 西安交通大学 | Natural gas combustion-supporting industrial pulverized coal cyclone combustor |
| CN102620295A (en) * | 2012-04-13 | 2012-08-01 | 西安康桥能源技术有限责任公司 | Industrial radial concentration dual-air regulation rotational flow coal powder and fuel gas mixed combustor |
| CN102679338A (en) * | 2012-05-30 | 2012-09-19 | 山西蓝天环保设备有限公司 | Efficient coal dust combustor for reducing smoke NOx content |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758629A (en) * | 2018-07-10 | 2018-11-06 | 东方电气集团东方锅炉股份有限公司 | low nitrogen oxide gas burner |
| CN108758629B (en) * | 2018-07-10 | 2024-04-12 | 东方电气集团东方锅炉股份有限公司 | Low-oxynitride gas burner |
| CN112443833A (en) * | 2019-09-05 | 2021-03-05 | 中国科学院工程热物理研究所 | Pulverized coal fired boiler with bottom burner and control method thereof |
| CN112443833B (en) * | 2019-09-05 | 2023-01-06 | 中国科学院工程热物理研究所 | Pulverized coal fired boiler with bottom-mounted burner and control method thereof |
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