CN102927567A - Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace - Google Patents
Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace Download PDFInfo
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- CN102927567A CN102927567A CN2012104412177A CN201210441217A CN102927567A CN 102927567 A CN102927567 A CN 102927567A CN 2012104412177 A CN2012104412177 A CN 2012104412177A CN 201210441217 A CN201210441217 A CN 201210441217A CN 102927567 A CN102927567 A CN 102927567A
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- 238000004227 thermal cracking Methods 0.000 title claims abstract description 40
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 239000002817 coal dust Substances 0.000 claims description 45
- 239000000843 powder Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The invention discloses a built-in type plasma thermal cracking combustion device of a jet flow powdered coal furnace and belongs to a powdered coal furnace. A left plasma gun seat flange and a right plasma gun seat flange are fixed at the left end and the right end of a plasma gun seat respectively, a plasma gun is assembled on the plasma gun seat, a short-connection flange and a plasma thermal cracking combustor connection flange are fixedly installed on a plasma ignition powdered coal inlet pipeline and a plasma thermal cracking combustor respectively, the plasma ignition powdered coal inlet pipeline, the left plasma gun seat flange, the right plasma gun seat flange, the short-connection flange and the plasma thermal cracking combustor connection flange are fixedly connected respectively to enable the plasma ignition powdered coal inlet pipeline, the plasma gun seat and the plasma thermal cracking combustor to be connected with one another in a series mode, a main powdered coal jet flow combustor is assembled in an cavity of the plasma thermal cracking combustor, and a main powdered coal lead-in pipeline is connected with a powdered coal input end of the main powdered coal jet flow combustor. The device is simple and compact in structure, high in burning loss resistance, long in service life and sufficient in powdered coal combustion.
Description
Technical field
The invention belongs to jet coal dust kiln, relates generally to a kind of burner without normal operation after oily baker, igniting and the igniting of plasma-arc gasification coal dust combined burning of coal dust kiln.
Background technology
At present, igniting and the bakers such as traditional fuel oil, combustion gas are still continued to use in the baker of coal dust kiln, igniting, have not only wasted a large amount of high-quality energy, and have improved production cost.For addressing the above problem, applicant has been researched and developed combined coal powder kiln plasma thermal cracking burner, because this device adopts the direct excited gas powdered coal of plasma thermal cracking technology particle, make directly oxidizing fire under the effect of plasma-arc of coal dust, add heating kiln inwall and igniting with the heat that produces, the purpose that reached baker and igniting, energy-saving and emission-reduction, reduces production costs.But, because the defective in the design, the structure exposed parts is exposed under the high temperature of kiln and causes scaling loss, reduced the service life of equipment, simultaneously, because efflux nozzle is at plasma thermal cracking combustor external, when 2 burner nozzles dusted simultaneously, the coal dust of efflux nozzle ejection can not finely burn.
Summary of the invention
The purpose of the invention is exactly the problem that exists for above-mentioned prior art, and design provides a kind of internal jet coal dust kiln plasma thermal cracking burner, reaches the purpose of raising equipment service life, the abundant completing combustion of assurance coal dust.
The purpose of the invention is achieved in that at the plasma gun platform left, be fixedly mounted with respectively the left flange of plasma gun platform and the right flange of plasma gun platform on the right part, plasma gun is fitted on the plasma gun platform, on plasma ignition coal powder entrance pipeline and plasma thermal cracking burner, be fixedly mounted with respectively short circuit flange and plasma thermal cracking burner adpting flange, affixed with plasma ignition coal powder entrance pipeline with short circuit flange and plasma thermal cracking burner adpting flange respectively by the left flange of plasma gun platform and the right flange of plasma gun platform, the plasma gun platform, plasma thermal cracking burner serial connection is communicated with, equipped main coal dust jet combustion device in plasma thermal cracking combustor cavity, main coal dust import pipe is connected with main coal dust jet combustion device coal dust input, so far consists of internal jet coal dust kiln plasma thermal cracking burner.
The invention is adopted main coal dust jet combustion device is configured in the interior internal version of plasma thermal cracking burner, when plasma thermal cracking burner is lighted a fire, main coal dust jet combustion device outer wall obtains the heating of plasma thermal cracking burner flame, make simultaneously the part coal dust in inside obtain heating, the coal dust of ejection is included in the flame of plasma thermal cracking burner ejection and the burning of high after-flame degree, after plasma thermal cracking burner is finished igniting, main coal dust jet combustion device as the main burner ejection at a high speed, elongated pulverized coal flow forms elongated flame and satisfies normal need of production under the high temperature in kiln, formation has " the internal jet coal dust kiln plasma thermal cracking burner " that two kinds of functions are integrated in one, and has rationally novel in design, simple and compact for structure, the anti-scorching performance is strong, increase the service life, the sufficient characteristics of coal dust firing.
Description of drawings
Fig. 1 is internal jet coal dust kiln plasma thermal cracking burner general structure schematic diagram;
Fig. 2 is A-A profile among Fig. 1.
Piece number explanation among the figure:
1, plasma ignition coal powder entrance pipeline, 2, short circuit flange, 3, the left flange of plasma gun platform, 4, plasma gun, 5, the right flange of plasma gun platform, 6, plasma thermal cracking burner adpting flange, 7, plasma thermal cracking burner, 8, main coal dust import pipe, 9, plasma gun platform, 10, main coal dust jet combustion device.
The specific embodiment
Below in conjunction with accompanying drawing the invention embodiment is described in detail.A kind of internal jet coal dust kiln plasma thermal cracking burner, on plasma gun platform 9 left sides, be fixedly mounted with respectively the left flange 3 of plasma gun platform and the right flange 5 of plasma gun platform on the right part, plasma gun 4 is fitted on the plasma gun platform 9, on plasma ignition coal powder entrance pipeline 1 and plasma thermal cracking burner 7, be fixedly mounted with respectively short circuit flange 2 and plasma thermal cracking burner adpting flange 6, affixed with plasma ignition coal powder entrance pipeline 1 with short circuit flange 2 and plasma thermal cracking burner adpting flange 6 respectively by the left flange 3 of plasma gun platform and the right flange 5 of plasma gun platform, plasma gun platform 9, plasma thermal cracking burner 7 serial connections are communicated with, equipped main coal dust jet combustion device 10 in plasma thermal cracking burner 7 chambeies, main coal dust import pipe 8 is connected with main coal dust jet combustion device 10 coal dust inputs.
The initial stage igniting, during the baking kiln, send into coal dust from plasma ignition coal powder entrance pipeline 1, the plasma-arc reaction oxidizing fire of the coal dust in the plasma ignition system and plasma gun 4 has formed the flame of diameter 800-1000mm, large diameter flame profile is better than minor diameter flame to the heating effect of kiln hood, add a small amount of coal dust in main coal dust import pipe 8, this strand pulverized coal flow both can cool off the main coal dust jet combustion device 10 that is exposed in the plasma thermal cracking burner 7, can replenish coal dust increasing combustion flame by the article on plasma ignition flame again, the experiment running shows: play obvious optimization function, the after-flame degree of coal dust when further having improved plasma ignition from the pulverized coal flow article on plasma ignition flame burning that main coal dust jet combustion device 10 adds.After lighting a fire successfully, drop into main combusting coal fines from main powder import pipe 8, main coal dust can reach 60-80m/s by main coal dust jet combustion device 10 rear flow velocitys, the high-speed jet coal dust has elongated flame, reduced flame diameter, consequently: temperature of kiln head slightly reduces, the coking of having avoided kiln hood to cause because of high temperature, axial temperature evenly raises in the kiln, has satisfied normal operation heating condition.
Claims (1)
1. internal jet coal dust kiln plasma thermal cracking burner, on plasma gun platform (a 9) left side, be fixedly mounted with respectively the left flange of plasma gun platform (3) and the right flange of plasma gun platform (5) on the right part, plasma gun (4) is fitted on the plasma gun platform (9), on plasma ignition coal powder entrance pipeline (1) and plasma thermal cracking burner (7), be fixedly mounted with respectively short circuit flange (2) and plasma thermal cracking burner adpting flange (6), affixed with plasma ignition coal powder entrance pipeline (1) with short circuit flange (2) and plasma thermal cracking burner adpting flange (6) respectively by the left flange of plasma gun platform (3) and the right flange of plasma gun platform (5), plasma gun platform (9), plasma thermal cracking burner (7) serial connection is communicated with, it is characterized in that equipped main coal dust jet combustion device (10) in plasma thermal cracking burner (7) chamber, main coal dust import pipe (8) is connected with main coal dust jet combustion device (10) coal dust input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104412177A CN102927567A (en) | 2012-11-08 | 2012-11-08 | Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104412177A CN102927567A (en) | 2012-11-08 | 2012-11-08 | Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace |
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| CN102927567A true CN102927567A (en) | 2013-02-13 |
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| CN2012104412177A Pending CN102927567A (en) | 2012-11-08 | 2012-11-08 | Built-in type plasma thermal cracking combustion device of jet flow powdered coal furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
Citations (9)
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|---|---|---|---|---|
| JPH02126022A (en) * | 1988-11-01 | 1990-05-15 | Babcock Hitachi Kk | Plasma type pulverized coal ignition burner, its anode structure and its igniting method |
| CN1044328A (en) * | 1989-01-16 | 1990-08-01 | 伊马特兰福伊马股份公司 | Starting solid fuel station boiler is also guaranteed the method and apparatus of its fuel combustion process |
| CN2429752Y (en) * | 2000-03-27 | 2001-05-09 | 烟台开发区龙源电力燃烧控制工程有限公司 | Two stage flame ignitor for coal powder directly |
| CN2487965Y (en) * | 2001-01-15 | 2002-04-24 | 烟台开发区龙源电力燃烧控制工程有限公司 | Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique |
| RU2210032C2 (en) * | 2000-12-28 | 2003-08-10 | Карпенко Евгений Иванович | Method of plasma ignition of pulverized-coal fuel (variants) and plasma pulverized-coal burner for realization of this method |
| EP1371905A1 (en) * | 2001-02-27 | 2003-12-17 | Yantai Longyuan Power Technology Co. Ltd. | Assembled cathode and plasma igniter with such cathode |
| CN101532665A (en) * | 2009-04-16 | 2009-09-16 | 曲大伟 | Coal dust gasification hybrid fuel ignition combustion-supporting multilevel combustion device |
| CN101900331A (en) * | 2010-07-28 | 2010-12-01 | 南京创能电力科技开发有限公司 | Low-temperature plasma rotational flow coal dust start-up burner |
| CN202852808U (en) * | 2012-11-08 | 2013-04-03 | 曲大伟 | Containing type jet flow coal dust furnace plasma thermal cracking burning device |
-
2012
- 2012-11-08 CN CN2012104412177A patent/CN102927567A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02126022A (en) * | 1988-11-01 | 1990-05-15 | Babcock Hitachi Kk | Plasma type pulverized coal ignition burner, its anode structure and its igniting method |
| CN1044328A (en) * | 1989-01-16 | 1990-08-01 | 伊马特兰福伊马股份公司 | Starting solid fuel station boiler is also guaranteed the method and apparatus of its fuel combustion process |
| CN2429752Y (en) * | 2000-03-27 | 2001-05-09 | 烟台开发区龙源电力燃烧控制工程有限公司 | Two stage flame ignitor for coal powder directly |
| RU2210032C2 (en) * | 2000-12-28 | 2003-08-10 | Карпенко Евгений Иванович | Method of plasma ignition of pulverized-coal fuel (variants) and plasma pulverized-coal burner for realization of this method |
| CN2487965Y (en) * | 2001-01-15 | 2002-04-24 | 烟台开发区龙源电力燃烧控制工程有限公司 | Multifunctional pulverized coal burner using multi-stage axial feeding powder and gas film cooling technique |
| EP1371905A1 (en) * | 2001-02-27 | 2003-12-17 | Yantai Longyuan Power Technology Co. Ltd. | Assembled cathode and plasma igniter with such cathode |
| CN101532665A (en) * | 2009-04-16 | 2009-09-16 | 曲大伟 | Coal dust gasification hybrid fuel ignition combustion-supporting multilevel combustion device |
| CN101900331A (en) * | 2010-07-28 | 2010-12-01 | 南京创能电力科技开发有限公司 | Low-temperature plasma rotational flow coal dust start-up burner |
| CN202852808U (en) * | 2012-11-08 | 2013-04-03 | 曲大伟 | Containing type jet flow coal dust furnace plasma thermal cracking burning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
| CN109827173B (en) * | 2019-01-30 | 2024-05-03 | 曲大伟 | Built-in telescopic plasma thermal cracking ignition and jet pulverized coal combustion device |
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Application publication date: 20130213 |