CN101900322A - Dual-cylinder dual-return stroke staged combustion device - Google Patents
Dual-cylinder dual-return stroke staged combustion device Download PDFInfo
- Publication number
- CN101900322A CN101900322A CN2010101423058A CN201010142305A CN101900322A CN 101900322 A CN101900322 A CN 101900322A CN 2010101423058 A CN2010101423058 A CN 2010101423058A CN 201010142305 A CN201010142305 A CN 201010142305A CN 101900322 A CN101900322 A CN 101900322A
- Authority
- CN
- China
- Prior art keywords
- dual
- cyclone firing
- firing tube
- internal layer
- layer cyclone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Solid-Fuel Combustion (AREA)
Abstract
The invention relates to a dual-cylinder dual-return stroke staged combustion device which comprises an outer-layer cyclone combustion cylinder, a combustion spray gun which sprays fuel into the outer-layer cyclone combustion cylinder at high speed is arranged on the upper side surface of the outer-layer cyclone combustion cylinder, a one-time tangential air supply outlet is arranged on the side wall of the outer-layer cyclone combustion cylinder, an inner-layer cyclone combustion cylinder body is arranged in the outer-layer cyclone combustion cylinder, the side wall of the inner-layer cyclone combustion cylinder body and the side wall of the outer-layer cyclone combustion cylinder form a closed combustion interlayer, a flame through hole is arranged on the side wall of the inner-layer cyclone combustion cylinder body at the bottom part of the combustion interlayer, a slag removing port is arranged at the bottom part of the inner-layer cyclone combustion cylinder, and a residual slag tank is arranged at the slag removing port for containing falling ash slag after burnout. The dual-cylinder dual-return stroke staged combustion device has the following benefits: (1) the dual-layer structure can lead flame after fuel combustion to be turned upwards, thereby prolonging the retention time, realizing full combustion, leading the residual slag after the combustion to fall into the residual slag tank through the slag removing port, reducing the emissions of harmful substances and effectively reducing the environmental pollution.
Description
Technical field:
The present invention relates to a kind of combustion apparatus, being specially can the burning low grade coal powder or a kind of dual-cylinder dual-return stroke staged combustion device of inferior fuel such as cinder powder.
Background technology:
China is energy resource consumption big country, and in the wastage in bulk or weight of the national energy, coal occupies very big proportion, reaches more than 75%.Energy restructuring is all being carried out in countries in the world, saving the utilization of the existing energy to greatest extent, and alleviates the environmental pollution that increases the weight of day by day.The energy-saving and emission-reduction situation is quite severe for China, and country also addresses the above problem trying every possible means by every possible means.In addition, along with rising steadily of fuel price, burned coal price is also in rapid rising, high-quality bituminous coal particularly, and price is high especially as to go against accepted conventions, and has largely improved the operating cost of enterprise.Therefore, more and more urgent to the needs of boiler, station boiler or the hot-blast furnace transformation of burning smoke coal.The burner of existing boiler or hot-blast stove adopts the single backhaul coal burner of single flow mostly, its characteristic is as follows: 1, single burning backhaul is only arranged, and fire stroke is short, can not fully burn, cause certain thermal loss, particularly fully burning low grade coal powder or cinder powder; 2, combustion flame can not rotate, and the jet extended corner is little, and the ability of entrainmenting is little, and the flammability of burner is poor, and the burner hearth degree of filling is poor; 3, because DC burner outlet recirculating zone is very little, and ignition condition is very poor, the anthracite of burning low volatile is very difficult, and is extremely difficult especially for coal dust inferior; 4, because burning is insufficient, discharge greatlyyer, can not satisfy environmental requirement the damage ratio of environment.
Summary of the invention:
Purpose of the present invention is at the deficiency that the above burner exists, provide a kind of can the burning low grade coal powder or a kind of dual-cylinder dual-return stroke staged combustion device cinder sweet smell, low emission, sufficient combustion.
The present invention is achieved in that a kind of dual-cylinder dual-return stroke staged combustion device, comprise outer cyclone firing tube, be provided with a burning spray gun that fuel is sprayed at a high speed in the outer cyclone firing tube in that the upper side of outer cyclone firing tube is minimum, sidewall at outer cyclone firing tube is provided with an once tangential air outlet, be provided with internal layer cyclone firing cylindrical shell in the described outer cyclone firing tube, form airtight burning interlayer between the sidewall of internal layer cyclone firing cylindrical shell and the outer cyclone firing tube sidewall, the sidewall of the internal layer cyclone firing cylindrical shell of the bottom of burning interlayer is provided with a flame through hole, the bottom of internal layer cyclone firing tube is removed cinder notch and is arranged with the lime-ash that falls after residue pool burns with dress for removing cinder notch.Can be provided with the second-time burning wall at internal layer cyclone firing tube and boiler furnace junction, to catch unburnt fine particle, promote burning, reduce the discharging of dust and nitrogen oxide, described second-time burning wall is made up of column and crossbeam, crossbeam is connected between the adjacent upright posts, forms netted filtration.Burning spray gun is spurted into ignited fuel in the burning interlayer between outer cyclone firing tube and the internal layer cyclone firing tube, under the tangential wind action that once tangential air outlet is sent into, the flame of fuel turns to burning down in burning interlayer inward turning, enter the upwards burning of internal layer cyclone firing tube by the flame through hole then, enter at last in the burner hearth of boiler or hot-blast stove, the lime-ash of after-flame falls in the residue pool by removing cinder notch.
The interior of described internal layer cyclone firing tube is provided with the tangential air intake duct of secondary, the tangential air intake duct of secondary is provided with air inlet so that be connected with blower fan, is provided with the secondary tangent air inlet and communicates with the combustion chamber of internal layer cyclone firing tube in the tangential air intake duct of secondary.In the tangential air intake duct of secondary, advertise cold air by blower fan, can effectively reduce the temperature of internal layer cyclone firing tube sidewall, improve the service life of sidewall; Can effectively replenish simultaneously the internal layer cyclone firing tube needed oxygen that burns, make burning more abundant.
Described second-time burning wall is made up of column and crossbeam, and crossbeam is connected between the adjacent upright posts, forms netted filtration.
Compared with prior art, beneficial effect of the present invention is as follows:
(1), the sidewall of internal layer cyclone firing cylindrical shell and outer cyclone firing tube sidewall form airtight burning interlayer double-decker, flame can be turned upwards after the fuel combustion, prolong the time of staying, sufficient combustion, residue after the burning falls into residue pool by removing cinder notch, discharge of poisonous waste is few, can effectively reduce the pollution to environment.
(2), coal dust burns in the interlayer in burning, burning interlayer two sides is hot wall with flues, makes sufficient combustion complete, solves the shortcoming of ignition difficulties.
(3) coal dust and air can be 30～60 ° of angles and intersect, and mix fully, promote burning.
(4) be provided with in the tangential air intake duct of secondary at the sidewall of internal layer cyclone firing cylindrical shell and advertise cold air, can effectively reduce the temperature of internal layer cyclone firing tube sidewall, prolong the service life of sidewall; Can effectively replenish simultaneously the internal layer cyclone firing tube needed oxygen that burns, make burning more abundant.
(5) in the internal layer cyclone firing cylindrical shell secondary tangent air inlet is arranged, form second-time burning, can effectively reduce the discharging of nitrogen oxide.
(6) can reduce height, easy for installation, be suitable for the transformation of used equipment, form two return structures.
(7) once tangential air intake and the tangential air intake of secondary are to regulate arbitrarily, and the flame export temperature can be regulated on a large scale, and is convenient, flexible.
(6) adopt sandwich, heat release is abundant, and the dead band is little, is suitable for the burning of coal dust inferior or cinder powder.
Description of drawings:
Fig. 1 vertically cuts structural representation open for a kind of dual-cylinder dual-return stroke staged combustion device of the present invention;
Fig. 2 is the A-A cross section structural representation of a kind of dual-cylinder dual-return stroke staged combustion device of the present invention;
Fig. 3 is the B-B cross section structural representation of a kind of dual-cylinder dual-return stroke staged combustion device of the present invention;
Fig. 4 vertically cuts structural representation open for the embodiment's of a kind of dual-cylinder dual-return stroke staged combustion device of the present invention;
Fig. 5 is the cross-sectional structure schematic diagram of burning wall;
The specific embodiment:
The present invention will be described in detail below in conjunction with the drawings and specific embodiments.
A kind of dual-cylinder dual-return stroke staged combustion device, shown in Fig. 1～3, comprise outer cyclone firing tube 3, be provided with a burning spray gun 1 that fuel is sprayed at a high speed in the outer cyclone firing tube in that the upper side of outer cyclone firing tube is minimum, be provided with a minimum once tangential air outlet 2 at the sidewall of outer cyclone firing tube.Be provided with internal layer cyclone firing cylindrical shell 9 in the described outer cyclone firing tube 3, the sidewall of internal layer cyclone firing cylindrical shell 9 and the sidewall of outer cyclone firing tube 3 form airtight burning interlayer 10, minimumly on the sidewall of internal layer cyclone firing cylindrical shell of the bottom of burning interlayer 10 be provided with a flame through hole 6, the bottom of internal layer cyclone firing tube is removed cinder notch 4 and is outside equipped with the lime-ash that falls after residue pool 5 burns with dress for removing cinder notch 4.Burning spray gun 1 is with coal dust inferior, inferior fuels such as cinder powder are lighted in the burning interlayer of spurting between outer cyclone firing tube 3 and the internal layer cyclone firing tube 9 10, under the tangential wind action that once tangential air outlet 2 is sent into, the flame of fuel burns downwards around the rotation of internal layer cyclone firing tube in burning interlayer 10, burned flame enters upwards burning of internal layer cyclone firing tube 8 by flame through hole 6 then, enter at last in the burner hearth of boiler or hot-blast stove, the lime-ash of after-flame falls in the residue pool 5 by removing cinder notch 4.Internal layer cyclone firing tube 9 is in hot state when burning, promoted the burning of inferior fuel, can effectively solve ignition difficulties and burn inadequate deficiency.Interior at internal layer cyclone firing tube 9 is provided with the tangential air intake duct 8 of secondary, the tangential air intake duct 8 of secondary is provided with air inlet so that be connected with blower fan, is provided with secondary tangent air inlet 7 and communicates with the combustion chamber of internal layer cyclone firing tube 9 in the tangential air intake duct 8 of secondary.In the tangential air intake duct 8 of secondary, advertise cold air by blower fan, can effectively reduce the temperature of internal layer cyclone firing tube 9 sidewalls, improve the service life of sidewall; Can effectively replenish simultaneously the needed oxygen of internal layer cyclone firing tube 9 burnings, make the fuel combustion in the internal layer cyclone firing tube 9 more abundant, reduce discharging wastes.Flame through hole 6 can symmetry on the sidewall of internal layer cyclone firing cylindrical shell of the bottom of burning interlayer be provided with four uniformly.Once tangential air outlet 2 can be provided with two or more at the lateral wall of outer cyclone firing tube, is beneficial to promote burning for burning interlayer 10 provides sufficient combustion air.Secondary tangent air inlet 7 can be provided with two or more, and being beneficial to provides sufficient combustion air for the combustion chamber of internal layer cyclone firing tube, promotes burning, reduces discharging wastes.
As shown in Figure 4 and Figure 5, internal layer cyclone firing tube 8 can be provided with second-time burning wall 12 with boiler furnace junction 11, to catch unburnt fine particle, promotes burning, reduces the discharging of dust and nitrogen oxide.The second-time burning wall is made up of some irregular columns of arranging 13 and some horizontal 14 beams, and crossbeam 14 is connected between the adjacent upright posts 13, forms netted filtration.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, if these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also comprises these changes and modification.
Claims (3)
1. dual-cylinder dual-return stroke staged combustion device, comprise outer cyclone firing tube, be provided with a burning spray gun that fuel is sprayed at a high speed in the outer cyclone firing tube at the upper side of outer cyclone firing tube, sidewall at outer cyclone firing tube is provided with an once tangential air outlet, it is characterized in that: be provided with internal layer cyclone firing cylindrical shell in the described outer cyclone firing tube, form airtight burning interlayer between the sidewall of internal layer cyclone firing cylindrical shell and the outer cyclone firing tube sidewall, the sidewall of the internal layer cyclone firing cylindrical shell of the bottom of burning interlayer is provided with a flame through hole, the bottom of internal layer cyclone firing tube is removed cinder notch and is arranged with residue pool for removing cinder notch; Be provided with the second-time burning wall at internal layer cyclone firing tube and boiler furnace junction.
2. a kind of dual-cylinder dual-return stroke staged combustion device according to claim 1, it is characterized in that: the interior of described internal layer cyclone firing tube is provided with the tangential air intake duct of secondary, the tangential air intake duct of secondary is provided with air inlet and is connected with blower fan, is provided with the secondary tangent air inlet and communicates with the combustion chamber of internal layer cyclone firing tube in the tangential air intake duct of secondary.
3. a kind of dual-cylinder dual-return stroke staged combustion device according to claim 1 is characterized in that: described second-time burning wall is made up of column and crossbeam, and crossbeam is connected between the adjacent upright posts, forms netted filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010142305.8A CN101900322B (en) | 2010-04-01 | 2010-04-01 | Dual-cylinder dual-return stroke staged combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010142305.8A CN101900322B (en) | 2010-04-01 | 2010-04-01 | Dual-cylinder dual-return stroke staged combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101900322A true CN101900322A (en) | 2010-12-01 |
| CN101900322B CN101900322B (en) | 2015-05-27 |
Family
ID=43226098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010142305.8A Expired - Fee Related CN101900322B (en) | 2010-04-01 | 2010-04-01 | Dual-cylinder dual-return stroke staged combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101900322B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642082A (en) * | 2016-12-08 | 2017-05-10 | 哈尔滨工业大学 | Small-sized cyclone-melting pulverized coal furnace |
| WO2019129199A1 (en) * | 2017-12-29 | 2019-07-04 | 广州环峰能源科技股份有限公司 | Composite gasification and combustion system for pulverized biomass |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782770A (en) * | 1988-01-26 | 1988-11-08 | The United States Of America As Represented By The United States Department Of Energy | Combustor for fine particulate coal |
| US4903616A (en) * | 1986-05-12 | 1990-02-27 | Konstantin Mavroudis | Device for supply of secondary air, and boiler with the device |
| CN1060704A (en) * | 1991-10-25 | 1992-04-29 | 聂森 | Double-sleeve combustion burns (reaction) device |
| US5209187A (en) * | 1991-08-01 | 1993-05-11 | Institute Of Gas Technology | Low pollutant - emission, high efficiency cyclonic burner for firetube boilers and heaters |
| CN1122430A (en) * | 1994-11-02 | 1996-05-15 | 张英杰 | Flue combustor capable of removing dust and fume |
| AU9472598A (en) * | 1997-09-05 | 1999-03-22 | Midrex Technologies Inc. | Oxygen-fuel boost reformer process and apparatus |
| US6401636B2 (en) * | 1998-04-17 | 2002-06-11 | Andritz-Patentverwaltungs-Gesellschaft Mbh | Process and device for incineration of particulate solids |
| EP1384032B1 (en) * | 2001-04-26 | 2006-03-08 | Swedish Bioburner System Aktiebolag | Combustion device |
-
2010
- 2010-04-01 CN CN201010142305.8A patent/CN101900322B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903616A (en) * | 1986-05-12 | 1990-02-27 | Konstantin Mavroudis | Device for supply of secondary air, and boiler with the device |
| US4782770A (en) * | 1988-01-26 | 1988-11-08 | The United States Of America As Represented By The United States Department Of Energy | Combustor for fine particulate coal |
| US5209187A (en) * | 1991-08-01 | 1993-05-11 | Institute Of Gas Technology | Low pollutant - emission, high efficiency cyclonic burner for firetube boilers and heaters |
| CN1060704A (en) * | 1991-10-25 | 1992-04-29 | 聂森 | Double-sleeve combustion burns (reaction) device |
| CN1122430A (en) * | 1994-11-02 | 1996-05-15 | 张英杰 | Flue combustor capable of removing dust and fume |
| AU9472598A (en) * | 1997-09-05 | 1999-03-22 | Midrex Technologies Inc. | Oxygen-fuel boost reformer process and apparatus |
| US6401636B2 (en) * | 1998-04-17 | 2002-06-11 | Andritz-Patentverwaltungs-Gesellschaft Mbh | Process and device for incineration of particulate solids |
| EP1384032B1 (en) * | 2001-04-26 | 2006-03-08 | Swedish Bioburner System Aktiebolag | Combustion device |
Non-Patent Citations (1)
| Title |
|---|
| 谭福太等: "飞灰再燃技术在沸腾炉改造中的应用", 《工业锅炉》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642082A (en) * | 2016-12-08 | 2017-05-10 | 哈尔滨工业大学 | Small-sized cyclone-melting pulverized coal furnace |
| CN106642082B (en) * | 2016-12-08 | 2019-04-09 | 哈尔滨工业大学 | A kind of small cyclones melting coal-powder boiler |
| WO2019129199A1 (en) * | 2017-12-29 | 2019-07-04 | 广州环峰能源科技股份有限公司 | Composite gasification and combustion system for pulverized biomass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101900322B (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204648325U (en) | A kind of bi-fuel type clean burning environmental protection and energy saving cooking heating stove and accessory | |
| CN103939919B (en) | High efficient oil sludge incinerator | |
| CN202546811U (en) | Compound furnace arch and compound secondary air structure | |
| CN106556007B (en) | A method of using the separation of deep or light thickness depth and Controllable-vortex stable combustion technology burning coal gasification semicoke particle | |
| CN105276583A (en) | Mixed combustion device and combustion equipment utilizing same | |
| CN101440956B (en) | Chinese meal type combustor | |
| CN102679390B (en) | Compound furnace arch and compound secondary air structure for cooperatively controlling generation of nitrogen oxide (NOX) | |
| CN101900322B (en) | Dual-cylinder dual-return stroke staged combustion device | |
| CN201339929Y (en) | Chinese meal burner | |
| CN102878550B (en) | Method for water-coal-slurry burning slag tapping cyclone furnace classification air distribution and low NOx reburning | |
| CN204574124U (en) | A kind of environmental protection cooking and heating furnace of the pluralities of fuel that can burn | |
| CN204574125U (en) | A kind of environmental protection and energy saving cooking and heating furnace of suitable for multiple fuel | |
| CN207196546U (en) | A kind of anti-multi-return-stroke type stove for warming or cooking purpose that burns has | |
| CN103383143A (en) | Novel efficient air heater | |
| CN105258113A (en) | Low-heating-value liquid and solid fluidized bed boiler and combustion technology | |
| CN205191554U (en) | Low heat value is liquid, solid -state fluidization bed boiler | |
| CN103807851A (en) | Pulverized coal gasification coke-removing burner | |
| CN203744234U (en) | Pulverized coal gasification reef removing combustor | |
| CN202709088U (en) | High-efficiency coal powder burning device for molten salt furnace | |
| CN201166360Y (en) | Affiliated combustion apparatus for anthracite powder to replace lump coal | |
| CN2699137Y (en) | Energy-saving environmental protection gas combustor | |
| CN203687019U (en) | Biomass secondary cracking device | |
| CN202915347U (en) | Water-coal-slurry burning vertical cyclone furnace device | |
| CN201318857Y (en) | Energy-saving environment-friendly grain drying device | |
| CN206739279U (en) | A kind of more gradient burners of the high effect cleaning of coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 523000 Guangdong province Dongguan City Nancheng Hongfu Road No. 108 Sheng business building 15F Applicant after: Guangdong Christian Dior technology Co., Ltd Address before: 523000 Guangdong province Dongguan City Nancheng Hongfu Road No. 108 Sheng business building 15F Applicant before: Guangdong Di Ao Technology Engineering Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: GUANGDONG DI AO TECHNOLOGY ENGINEERING LTD. TO: GUANGDONG DIAO TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20200401 |