CN107642779B - Environment-friendly energy-saving pulverized coal gas burner - Google Patents
Environment-friendly energy-saving pulverized coal gas burner Download PDFInfo
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- CN107642779B CN107642779B CN201711061505.9A CN201711061505A CN107642779B CN 107642779 B CN107642779 B CN 107642779B CN 201711061505 A CN201711061505 A CN 201711061505A CN 107642779 B CN107642779 B CN 107642779B
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- inner sleeve
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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 discloses an environment-friendly energy-saving coal powder gas burner which comprises an inner sleeve and a shell sleeved on the outer side of the inner sleeve, wherein one ends of the inner sleeve and the shell are fixed on a burner mounting seat, the other ends of the inner sleeve and the shell are provided with end face sealing plates a, an annular cavity between the inner sleeve and the shell is provided with a middle partition plate, the burner mounting seat is provided with a burner outlet and a tertiary air channel, the shell is provided with a secondary air inlet and a tertiary air inlet, the outer side of the end face sealing plates a is provided with a coal powder cyclone device, the coal powder cyclone device comprises a cyclone shell, the cyclone shell is provided with a coal powder inlet, a gas pipeline is sleeved in the cyclone shell and the inner sleeve, a coal powder cyclone annular cavity is formed between the gas pipeline and the cyclone shell, a gas-powder mixed cyclone annular cavity is formed between the gas pipeline and the inner sleeve, and an annular choke is arranged between the coal powder cyclone annular cavity and the gas-powder mixed cyclone annular cavity. The invention solves the problems that the combustion of coal powder as fuel is not easy to control and pollutants are easy to generate.
Description
Technical Field
The invention relates to an environment-friendly energy-saving pulverized coal gas burner.
Background
At present, the technology of coal dust injection in a blast furnace is widely applied to ferrous metallurgy production enterprises. As a natural energy source, coal dust has the advantage of relatively low price compared with other fuels; meanwhile, the coal dust is burnt as direct fuel to provide energy, so that the efficiency of recycling the coal dust is much higher than that of converting the coal dust into electric energy and the like.
However, pulverized coal is not used much in production processes (such as ignition operation of sintering machine) that require direct heat supply in addition to iron-making blast furnaces; this is because, in other production steps, the pulverized coal is not easy to control combustion and is easy to generate NO as direct fuel X And the like.
Disclosure of Invention
The invention aims to: the invention aims to provide an environment-friendly energy-saving coal-gas burner which can realize clean combustion of coal dust and exchange gas fuels such as coal dust and gas, aiming at the problems that the combustion is difficult to control, pollutants are easy to generate and the like when coal dust is used as fuel to be directly combusted in other production procedures requiring heat supply except a blast furnace.
The technical scheme is as follows: in order to achieve the above purpose, the present invention adopts the following technical scheme: an environment-friendly energy-saving pulverized coal gas burner comprises an inner sleeve and a shell sleeved outside the inner sleeve, wherein one ends of the inner sleeve and the shell are fixed on a burner mounting seat, an end face sealing plate a is arranged at the other ends of the inner sleeve and the shell, a precombustion chamber is formed in the inner sleeve, an intermediate baffle is arranged in an annular cavity between the inner sleeve and the shell, and the annular cavity is divided into a secondary air chamber and a tertiary air chamber through the intermediate baffle;
the center of the burner mounting seat is provided with a burner outlet, and the precombustion chamber is communicated with the outer side of the burner mounting seat through the burner outlet; a tertiary air channel is arranged at a position of the burner mounting seat corresponding to the tertiary air chamber, and the tertiary air chamber is communicated with the outside through the tertiary air channel;
the shell is provided with a secondary air inlet and a tertiary air inlet, the secondary air inlet is positioned between the end face sealing plate a and the middle partition plate, the tertiary air inlet is positioned between the middle partition plate and the burner mounting seat, the inner sleeve is provided with a secondary air channel, the secondary air channel is positioned between the end face sealing plate a and the middle partition plate, and the secondary air chamber is communicated with the inner side of the inner sleeve through the secondary air channel;
the coal powder cyclone device is arranged outside the end face sealing plate a and comprises a cyclone shell, one end of the cyclone shell is connected with the end face sealing plate a, the other end of the cyclone shell is provided with an end face sealing plate b, and a coal powder inlet is formed in the cyclone shell;
the gas pipeline is sleeved in the cyclone shell and the inner sleeve, a pulverized coal cyclone annular cavity is formed between the gas pipeline and the cyclone shell, a gas-powder mixing cyclone annular cavity is formed between the gas pipeline and the inner sleeve, an annular choke is arranged between the pulverized coal cyclone annular cavity and the gas-powder mixing cyclone annular cavity, and the gas outlet end of the gas pipeline is positioned at the interface of the gas-powder mixing cyclone annular cavity and the precombustion chamber inside the inner sleeve.
Furthermore, a second tertiary air channel is further arranged on the inner sleeve, and the second tertiary air channel is positioned between the middle partition plate and the burner mounting seat.
Furthermore, the inner sleeve, the outer shell and the cyclone shell are all cylindrical, the gas pipeline is a circular pipe, and the inner sleeve, the outer shell, the cyclone shell and the gas pipeline are coaxial.
Further, the secondary air inlet and the tertiary air inlet are arranged along the tangential direction of the inner wall of the shell; the secondary air channels are axially arranged along the inner sleeve, each secondary air channel comprises a plurality of cyclone channels uniformly distributed along the circumferential direction of the inner sleeve, and the cyclone channels are arranged along the tangential direction of the outer wall of the gas pipeline; the pulverized coal inlet is arranged along the tangential direction of the inner wall of the cyclone shell.
Further, the annular throttling port comprises a conical section a arranged at one end of the cyclone shell close to the end face sealing plate a, and a conical section b arranged at one end of the inner sleeve close to the end face sealing plate a, wherein an annular cavity with narrow middle and wide two sides is formed among the conical section a, the conical section b and the gas pipeline.
Furthermore, the gas outlet end of the gas pipeline is provided with a gas cyclone.
Further, the burner outlet is matched with the inner diameter of the inner sleeve.
The beneficial effects are that:
1) The invention uses cheap pulverized coal fuel to replace coal gas, and can realize full pulverized coal combustion or pulverized coal-coal mixed combustion according to the volatile content of pulverized coal. According to the equivalent heat replacement calculation, the fuel cost can be saved by about 0.2 yuan per kilogram of coal dust, and the benefits generated by taking the replaced coal gas into consideration for power generation and the like are more considerable.
2) By adjusting the proportion of the primary combustion air, the secondary combustion air and the tertiary combustion air, the stepwise mixing of the combustion air and the pulverized coal is controlled, the generation of NOx in the pulverized coal combustion process is inhibited, the existence of forms of flame-retardant substances such as ash in the pulverized coal is controlled, and the problem of dust pollution in pulverized coal combustion is solved.
3) The burner can also perform full gas combustion, and compared with the existing gas burner, the gas burner has more sufficient gas combustion, can save about 20 percent of fuel under the condition of providing the same heat, and has remarkable energy-saving effect.
4) The invention can be applied to equipment or production processes such as sintering ignition furnaces, various flue gas generating furnaces, furnaces and the like which need to directly provide heat.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the coal dust inlet;
FIG. 3 is a schematic view of the structure of the secondary air inlet;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
in the figure: the device comprises a 1-gas pipeline, a 2-end face sealing plate b, a 3-coal powder pipeline, a 4-swirl shell, a 4-1-conical section a, a 5-end face sealing plate a, a 6-secondary air pipeline, a 7-inner sleeve, a 7-1-conical section b, an 8-outer shell, a 9-middle partition plate, a 10-gas swirler, a 11-tertiary air pipeline, a 12-burner mounting seat, a 13-coal powder swirl annular cavity, a 14-annular choke, a 15-secondary air channel, a 15-1-swirl channel, a 16-gas-powder mixing swirl annular cavity, a 17-secondary air chamber, a 18-precombustor, a 19-tertiary air chamber, a 20-tertiary air channel, a 21-burner outlet and a 22-tertiary air channel II.
The specific embodiment is as follows:
the invention is further explained below with reference to the drawings.
As shown in fig. 1, an environment-friendly and energy-saving pulverized coal gas burner according to a first embodiment of the present invention includes an inner sleeve 7 and a housing 8 sleeved outside the inner sleeve 7, wherein one ends of the inner sleeve 7 and the housing 8 are fixed on a burner mounting seat 12, the other ends of the inner sleeve 7 and the housing 8 are provided with end face sealing plates a5, a precombustion chamber 18 is formed in the inner sleeve, an intermediate partition 9 is arranged in an annular cavity between the inner sleeve 7 and the housing 8, and the annular cavity is divided into a secondary air chamber 17 and a tertiary air chamber 19 by the intermediate partition 9.
The center of the burner mounting seat 12 is provided with a burner outlet 21, the burner outlet 21 is matched with the inner diameter of the inner sleeve 7, and the precombustion chamber 18 is communicated with the outer side of the burner mounting seat 12 through the burner outlet 21. The outer circle of the burner mounting seat 12 is provided with a connecting flange for connecting a combustion chamber, a tertiary air channel 20 is arranged at a position of the burner mounting seat 12 corresponding to the tertiary air chamber 19, and the tertiary air chamber 19 is communicated with the outer side of the burner mounting seat 12 through the tertiary air channel 20.
The casing 8 is provided with a secondary air inlet and a tertiary air inlet, the secondary air inlet is positioned between the end face sealing plate a5 and the middle partition plate 9, the tertiary air inlet is positioned between the middle partition plate 9 and the combustor mounting seat 12, the secondary air inlet is used for being connected with the secondary air pipeline 6, and the tertiary air inlet is used for being connected with the tertiary air pipeline 11. The inner sleeve 7 is provided with a secondary air channel 15, the secondary air channel 15 is positioned between the end face sealing plate a5 and the middle partition plate 9, and the secondary air chamber 17 is communicated with the inner side of the inner sleeve 7 through the secondary air channel 15.
The outside of the end face sealing plate a5 is provided with a coal powder cyclone device, the coal powder cyclone device comprises a cyclone shell 4, one end of the cyclone shell 4 is connected with the end face sealing plate a5, the other end of the cyclone shell 4 is provided with an end face sealing plate b2, the cyclone shell 4 is provided with a coal powder inlet, and the coal powder inlet is connected with a coal powder pipeline 3.
The swirl shell 4 and the inner sleeve 7 are sleeved with a gas pipeline 1, the gas pipeline 1 is fixed on the end face sealing plate b2, and the gas inlet end of the gas pipeline 1 is positioned outside the end face sealing plate b 2. A pulverized coal rotational flow annular cavity 13 is formed between the gas pipeline 1 and the rotational flow shell 4, a gas-powder mixed rotational flow annular cavity 16 is formed between the gas pipeline 1 and the inner sleeve 7, an annular choke 14 is arranged between the pulverized coal rotational flow annular cavity 13 and the gas-powder mixed rotational flow annular cavity 16, the gas outlet end of the gas pipeline 1 is positioned at the interface between the gas-powder mixed rotational flow annular cavity 16 and the precombustor 18 inside the inner sleeve 7, and a gas swirler 10 is arranged at the gas outlet end of the gas pipeline 1.
As shown in fig. 1 to 3, in the first embodiment of the present invention, the inner sleeve 7, the outer shell 8 and the swirl shell 4 are all cylindrical, the gas pipe 1 is a circular pipe, and the inner sleeve 7, the outer shell 8, the swirl shell 4 and the gas pipe 1 are concentric. The secondary air inlet and the tertiary air inlet are arranged along the tangential direction of the inner wall of the shell 8; one or more groups of secondary air channels 15 are axially arranged along the inner sleeve 7, each group of secondary air channels 15 comprises a plurality of cyclone channels 15-1 uniformly distributed along the circumferential direction of the inner sleeve 7, and the cyclone channels 15-1 are arranged along the tangential direction of the outer wall of the gas pipeline 1; the pulverized coal inlet is arranged along the tangential direction of the inner wall of the cyclone housing 4.
As shown in fig. 1, the annular choke 14 includes a conical section a4-1 disposed at one end of the cyclone housing 4 near the end face seal plate a5, and a conical section b7-1 disposed at one end of the inner sleeve 7 near the end face seal plate a5, where an annular cavity with a narrow middle and wide two sides is formed between the conical section a4-1, the conical section b7-1 and the gas pipe 1.
The working principle of the first embodiment of the invention is as follows:
the installation seat 12 of the burner is installed on the combustion chamber through a connecting flange, the primary air is utilized to convey the pulverized coal to the pulverized coal pipeline 3, the pulverized coal and the primary air are subjected to swirling flow in the pulverized coal swirling flow annular cavity 13 in the swirling flow shell 4 and are fully mixed, and then the pulverized coal is uniformly distributed on the section of the annular throttling port through the annular throttling port 14; the secondary air for combustion supporting enters the burner through the secondary air pipeline 6, then enters the gas-powder mixing cyclone annular cavity 16 between the inner sleeve 7 and the gas pipeline 1 through the secondary air channel 15 in a tangential rotation way, the secondary air fully agitates the gas-powder mixture of the coal powder and the primary air in the gas-powder mixing cyclone annular cavity 16, the secondary air advances in a rotary flow way, and the combustible in the coal powder fully contacts with oxygen in the combustion supporting air; when the gas-powder mixture reaches the precombustion chamber 18 inside the inner sleeve 7, the propelling speed is slowed down due to the change of the regional space, the volatile matters in the coal powder are gradually gasified, and the gasified matters begin to burn under the high-temperature radiation of the later-stage combustion chamber; after the gas-powder mixture enters the rear-stage combustion chamber through the burner outlet 21, other combustible components in the pulverized coal begin to burn, and the combustion air added through the tertiary air channel provides sufficient oxygen for continuing the pulverized coal, so that the pulverized coal is completely burned in the combustion chamber behind the burner; meanwhile, the countercurrent circulation generated by the tertiary air and the rotary flow aggravates the combustion of the pulverized coal in the precombustion chamber. The combustion stage of pulverized coal with different volatile matters can be controlled by different distribution ratios of primary air, secondary air and tertiary air, the oxidation reaction of N element is inhibited, the existence form of ash in the pulverized coal is controlled, and the aim of clean combustion of the pulverized coal is achieved.
When the whole gas is combusted, gas fuel such as gas enters the burner from the gas pipeline 1, and forms high-speed rotary jet flow after passing through the gas cyclone 10, combustion starts in the precombustion chamber 18, and a large amount of tertiary air is added in the combustion chamber after the burner to fully and completely combust the gas. The gas combustion process is regulated by the proportion of secondary air and tertiary air. The combustion intensity of the gas is high, and the heat distribution on the flame propulsion section is uniform.
When the volatile components of the used pulverized coal fuel are low, the coal gas can be introduced into the precombustion chamber 18 at the inner side of the inner sleeve 7 in a coal gas combustion accompanying manner, the addition of the coal gas is equivalent to increasing the volatile components of the pulverized coal, the combustion supporting effect is achieved on the pulverized coal, and the clean combustion of the pulverized coal is convenient to realize.
In the second embodiment shown in fig. 4, on the basis of the first embodiment, a second tertiary air channel 22 is further provided on the inner sleeve 7, the second tertiary air channel 22 is located between the intermediate baffle 9 and the burner mounting seat 12, and the second tertiary air channel 22 communicates the tertiary air chamber 19 with the precombustor 18 to guide a part of tertiary air into the precombustor.
The working principle of the second embodiment of the present invention differs from that of the first embodiment in that:
and part of tertiary air is added into the precombustion chamber to supplement oxygen required by combustion of pulverized coal gasification, and meanwhile, the proportion of secondary air is properly reduced, so that the oxidation reaction of N element is more favorably inhibited, the existence form of ash in pulverized coal is more effectively controlled, and the aim of clean combustion of pulverized coal is fulfilled.
When the whole gas is burnt, the addition of tertiary air in the precombustion chamber is more beneficial to controlling the shape of the flame of the gas combustion, and a more ideal heat distribution form is obtained on the flame propulsion section.
The environment-friendly energy-saving burner adopted by the invention has low production and operation cost, can effectively control the emission concentration of NOx when coal dust is used as fuel, can control the existence form of ash in the coal dust combustion process, and meets the environment-friendly emission requirement. Under three working states of full pulverized coal combustion, full coal gas combustion and pulverized coal gas mixed combustion, the purpose of saving fuel can be achieved, and the energy-saving effect 21120 is remarkable.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. An environment-friendly energy-saving pulverized coal gas burner is characterized in that: the burner comprises an inner sleeve (7) and a shell (8) sleeved outside the inner sleeve (7), wherein one ends of the inner sleeve (7) and the shell (8) are fixed on a burner mounting seat (12), the other ends of the inner sleeve (7) and the shell (8) are provided with end face sealing plates a (5), a precombustion chamber (18) is formed in the inner sleeve, an intermediate baffle (9) is arranged in an annular cavity between the inner sleeve (7) and the shell (8), and the annular cavity is divided into a secondary air chamber (17) and a tertiary air chamber (19) through the intermediate baffle (9);
the center of the burner mounting seat (12) is provided with a burner outlet (21), and the precombustion chamber (18) is communicated with the outer side of the burner mounting seat (12) through the burner outlet (21); a tertiary air channel (20) is arranged at a position of the burner mounting seat (12) corresponding to the tertiary air chamber (19), and the tertiary air chamber (19) is communicated with the outer side of the burner mounting seat (12) through the tertiary air channel (20);
a secondary air inlet and a tertiary air inlet are arranged on the shell (8), the secondary air inlet is positioned between the end face sealing plate a (5) and the middle partition plate (9), the tertiary air inlet is positioned between the middle partition plate (9) and the burner mounting seat (12), a secondary air channel (15) is arranged on the inner sleeve (7), the secondary air channel (15) is positioned between the end face sealing plate a (5) and the middle partition plate (9), and the secondary air chamber (17) is communicated with the inner side of the inner sleeve (7) through the secondary air channel (15);
the coal powder cyclone device is arranged outside the end face sealing plate a (5), the coal powder cyclone device comprises a cyclone shell (4), one end of the cyclone shell (4) is connected with the end face sealing plate a (5), the other end of the cyclone shell (4) is provided with an end face sealing plate b (2), and a coal powder inlet is formed in the cyclone shell (4);
a gas pipeline (1) is sleeved in the cyclone shell (4) and the inner sleeve (7), a pulverized coal cyclone annular cavity (13) is formed between the gas pipeline (1) and the cyclone shell (4), a gas-powder mixing cyclone annular cavity (16) is formed between the gas pipeline (1) and the inner sleeve (7), an annular choke (14) is arranged between the pulverized coal cyclone annular cavity (13) and the gas-powder mixing cyclone annular cavity (16), and the gas outlet end of the gas pipeline (1) is positioned at the interface of the gas-powder mixing cyclone annular cavity (16) at the inner side of the inner sleeve (7) and the precombustion chamber (18).
2. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 1, wherein: and a second tertiary air channel (22) is further arranged on the inner sleeve (7), and the second tertiary air channel (22) is positioned between the middle partition plate (9) and the burner mounting seat (12).
3. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 1 or 2, wherein: the inner sleeve (7), the outer shell (8) and the cyclone shell (4) are cylindrical, the gas pipeline (1) is a circular pipe, and the inner sleeve (7), the outer shell (8), the cyclone shell (4) and the gas pipeline (1) are coaxial.
4. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 3, wherein: the secondary air inlet and the tertiary air inlet are arranged along the tangential direction of the inner wall of the shell (8); the secondary air channels (15) are axially arranged along the inner sleeve (7) in one or more groups, each group of secondary air channels (15) comprises a plurality of cyclone channels (15-1) uniformly distributed along the circumferential direction of the inner sleeve (7), and the cyclone channels (15-1) are arranged along the tangential direction of the outer wall of the gas pipeline (1); the pulverized coal inlet is arranged along the tangential direction of the inner wall of the cyclone shell (4).
5. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 3, wherein: the annular throttling port (14) comprises a conical section a (4-1) arranged at one end, close to the end face sealing plate a (5), of the cyclone shell (4), a conical section b (7-1) arranged at one end, close to the end face sealing plate a (5), of the inner sleeve (7), and an annular cavity with narrow middle and wide two sides is formed among the conical section a (4-1), the conical section b (7-1) and the gas pipeline (1).
6. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 1, wherein: the gas outlet end of the gas pipeline (1) is provided with a gas cyclone (10).
7. An environmentally friendly and energy efficient pulverized coal gas burner as claimed in claim 1, wherein: the burner outlet (21) is matched with the inner diameter of the inner sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061505.9A CN107642779B (en) | 2017-11-02 | 2017-11-02 | Environment-friendly energy-saving pulverized coal gas burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061505.9A CN107642779B (en) | 2017-11-02 | 2017-11-02 | Environment-friendly energy-saving pulverized coal gas burner |
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| Publication Number | Publication Date |
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| CN107642779A CN107642779A (en) | 2018-01-30 |
| CN107642779B true CN107642779B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711061505.9A Active CN107642779B (en) | 2017-11-02 | 2017-11-02 | Environment-friendly energy-saving pulverized coal gas burner |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108343952B (en) * | 2018-03-29 | 2023-09-01 | 山西文龙中美环能科技股份有限公司 | Self-starting pulverized coal burner |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313368A (en) * | 1928-08-24 | 1929-06-13 | Harold Edgar Yarrow | Improvements in pulverised fuel burners |
| CN2079259U (en) * | 1990-01-31 | 1991-06-19 | 常熟市喷嘴厂 | Quick burning device |
| CN1057712A (en) * | 1990-06-29 | 1992-01-08 | 巴布考克日立株式会社 | Burner |
| CN2259555Y (en) * | 1995-10-18 | 1997-08-13 | 冶金工业部武汉冶金建筑研究所 | Swirl pulverized-fuel pre-combustion chamber combustor |
| CN201680364U (en) * | 2010-04-06 | 2010-12-22 | 山西蓝天环保设备有限公司 | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN103322563A (en) * | 2012-03-21 | 2013-09-25 | 川崎重工业株式会社 | Pulverized coal/biomass mixed-combustion burner and fuel combustion method |
| CN203273883U (en) * | 2013-05-13 | 2013-11-06 | 杨占春 | Rotational flow pulverized coal burner |
| CN204786377U (en) * | 2015-04-03 | 2015-11-18 | 南京创能电力科技开发有限公司 | Whirl weak breath coal burner |
| CN105132037A (en) * | 2015-09-11 | 2015-12-09 | 哈尔滨工业大学 | Pulverized coal gasifier burner |
| CN106705039A (en) * | 2017-03-06 | 2017-05-24 | 中国华能集团清洁能源技术研究院有限公司 | Low-load stable combustion rotational flow type burner |
| CN207365059U (en) * | 2017-11-02 | 2018-05-15 | 大峘集团有限公司 | A kind of environment-protecting energy-saving type briquette fine coal air burner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201202907D0 (en) * | 2012-02-21 | 2012-04-04 | Doosan Power Systems Ltd | Burner |
-
2017
- 2017-11-02 CN CN201711061505.9A patent/CN107642779B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313368A (en) * | 1928-08-24 | 1929-06-13 | Harold Edgar Yarrow | Improvements in pulverised fuel burners |
| CN2079259U (en) * | 1990-01-31 | 1991-06-19 | 常熟市喷嘴厂 | Quick burning device |
| CN1057712A (en) * | 1990-06-29 | 1992-01-08 | 巴布考克日立株式会社 | Burner |
| CN2259555Y (en) * | 1995-10-18 | 1997-08-13 | 冶金工业部武汉冶金建筑研究所 | Swirl pulverized-fuel pre-combustion chamber combustor |
| CN201680364U (en) * | 2010-04-06 | 2010-12-22 | 山西蓝天环保设备有限公司 | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN103322563A (en) * | 2012-03-21 | 2013-09-25 | 川崎重工业株式会社 | Pulverized coal/biomass mixed-combustion burner and fuel combustion method |
| CN203273883U (en) * | 2013-05-13 | 2013-11-06 | 杨占春 | Rotational flow pulverized coal burner |
| CN204786377U (en) * | 2015-04-03 | 2015-11-18 | 南京创能电力科技开发有限公司 | Whirl weak breath coal burner |
| CN105132037A (en) * | 2015-09-11 | 2015-12-09 | 哈尔滨工业大学 | Pulverized coal gasifier burner |
| CN106705039A (en) * | 2017-03-06 | 2017-05-24 | 中国华能集团清洁能源技术研究院有限公司 | Low-load stable combustion rotational flow type burner |
| CN207365059U (en) * | 2017-11-02 | 2018-05-15 | 大峘集团有限公司 | A kind of environment-protecting energy-saving type briquette fine coal air burner |
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| Publication number | Publication date |
|---|---|
| CN107642779A (en) | 2018-01-30 |
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