CN102183022A - Multi-channel mixed fuel burner - Google Patents
Multi-channel mixed fuel burner Download PDFInfo
- Publication number
- CN102183022A CN102183022A CN 201110100780 CN201110100780A CN102183022A CN 102183022 A CN102183022 A CN 102183022A CN 201110100780 CN201110100780 CN 201110100780 CN 201110100780 A CN201110100780 A CN 201110100780A CN 102183022 A CN102183022 A CN 102183022A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- wind
- pipe
- natural gas
- air
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a multi-channel mixed fuel burner in the field of the burner. The multi-channel mixed fuel burner comprises an igniter channel pipe, an internal air pipe, a cyclone pipe, an air gas pipe, a natural gas pipe, an external air pipe, an internal air nozzle, a cyclone nozzle, an air gas nozzle, a natural gas nozzle and an external air nozzle, wherein the internal air pipe, the cyclone pipe, the air gas pipe, the natural gas pipe and the external air pipe are coaxially sleeved outside the igniter channel pipe sequentially from inside to outside; the internal air nozzle, the cyclone nozzle, the air gas nozzle, the natural gas nozzle and the external air nozzle correspond to air outlet ends of each pipeline; an air deflector which generates cyclone is arranged between the cyclone pipe and the internal air pipe; air inlet ends of the internal air pipe, the cyclone pipe and the external air pipe are connected with an air delivery channel respectively; and an igniter is arranged in the igniter channel pipe. A natural gas pipeline is added into the burner provided by the invention, so natural gas and coal powder are mixed to serve as a fuel, the discharge of pollutants such as nitric oxide (NOx) is reduced, and an effect of burning a raw material in cement production is improved. The multi-channel mixed fuel burner is applied to a link of cement burning in the cement production.
Description
Technical field
The present invention relates to a kind of burner, particularly a kind of mixed fuel firing device.
Background technology
Along with the quick expansion of cement industry scale and improving constantly of environmental protection standard, the cement plant all when how thinking is improving the quality of production, reduces production costs, to remain on the competitiveness in the market both at home and abroad.
Cement production process commonly used in the prior art comprises following 6 big steps: 1. broken and pre-homogenizing; 2. raw material preparation; 3. raw material homogenizing; 4. pre-thermal decomposition; 5. clinker burns till; 6. cement abrasive dust.Burning till in rotary kiln of clinker finished, carbonate further decomposes rapidly and a series of solid phase reactions takes place in rotary kiln, along with temperature of charge raises, the solid phase mineral can become liquid phase, the mineral that are dissolved in the liquid phase react a large amount of grogs of generation, after grog burnt till, temperature began to reduce.The last high temperature chamotte that rotary kiln is drawn off by cement clinker cooler is cooled to the temperature that downstream conveying, depots and cement grinding mill can bear, and reclaims the sensible heat of high temperature chamotte simultaneously, improves the thermal efficiency and the clinker quality of system.
Rotary kiln burner is usually used in the clinker, and coal and electricity are energy consumes main in the cement production process, and wherein coal consumption cost in some areas has accounted for the over half of totle drilling cost, and reducing coal consumption will obviously reduce production costs, thereby increase economic efficiency.Burner is the main coal equipment of using in the manufacture of cement, thus improve the efficiency of combustion of burner not only can reduce coal consumption and also can power saving and reduce NO
xDeng pernicious gas, also help the raising of grog Chan ﹑ quality simultaneously.
The seventies in last century, the external still inefficient single channel burner that uses; But along with the rise of energy crisis and global building industry, cement industry has used high efficiency multicenter combustor to replace original single channel burner.
Rotary kiln burner not only provides fuel and oxidant for burning, also is the topmost power set of flame moulding simultaneously.Therefore, accurate technology, with good operating mode is provided, to clinker burning, cost reduces all very important.A wind in the burner internal channel is the artificial wind that the cement firing system is had the greatest impact, the quantity that becomes the combustion of shape ﹑ combustion material to burn ﹑ suction volume secondary wind to flame all has very big influence, and wind of therefore accurate control helps the raising of grog product ﹑ quality and the saving of coal electric resources; The temperature of a wind is very low, and too much participation combustion process has reduced significantly then that the bar spare ﹑ that catches fire increases that blower fan electricity consumption ﹑ also is unfavorable for the burning of coal dust and the waste that causes resource.But be shaped thereby can not cancel because wind plays a part transfer the fuel and flame, therefore have only and reduce the occupation rate of a cold wind in total blast volume (comprising two wind ﹑ of wind ﹑ kiln tail high-temperature flue gas) as far as possible to guarantee the combustion efficiency of burner.Simultaneously because the heat energy major part that the raw material calcining needs is propagated so the temperature of flame and shape very important just by the flame light radiation.Flame temperature has reflected the distribution situation of energy particle, and it is highly beneficial to clinker burning to distribute uniformly; Show that according to foreign study short and narrow flame helps crystallization and the kliner coating and the burner life-time dilatation of Ran Shao ﹑ slag of the Duan Shao ﹑ coal dust of grog most, and the heat flux distribution of this flame is also more satisfactory.The stability of flame will guarantee the quality of stability of clinker burning and the security of equipment operation.What influence flame mainly is that Feng Shuaied the ﹑ muzzle velocity, swirl strength, coal dust Zhong Lei ﹑ granular size etc.
In the prior art, a kind of oil/coal dual burner is arranged, its publication number is: CN200968598, and the patent No. is: 200620011395.6, comprise the bellows that are arranged at the rear portion, combustion chamber and be set in wind coal pipe, oil gun in the wind box duct from inside to outside successively; The wind coal import of described wind coal pipe rear end is connected by the wind coal machine of conveyance conduit with the outside; Described oily muzzle end is equiped with atomizer, and the hydraulic fluid port of oil gun rear end is connected by the oil pump of oil pipe line with the outside.
Also have a kind of rotary kiln tendencies road coal burner, its publication number is: CN2529083, and by the steel pipe of five coaxial arrangement and corresponding outlet nozzle thereof with regulate the used valve of air quantity wind speed and constituted.This product is to constitute separately passage by the different gap between each layer sleeve pipe, is called: outer axial flow wind duct, wind coal channel, inner axial flow wind duct, interior choosing stream wind passage and center wind duct.The leading section of each layer airduct all is equipped with corresponding heat resisting steel outlet nozzle or cyclone.
Its weak point is: said burner when the higher combustion efficiency of needs, needs to consume a large amount of coal fuel in cement production process, and coal dust firing produces a large amount of NOx pollutants, runs counter to the resolution that China implements energy-saving and emission-reduction.
Summary of the invention
The purpose of this invention is to provide a kind of multichannel mixed fuel firing device, make, to make the use amount that has reduced coal dust it can reach higher calorific value effect, thereby reduced cost by adding natural gas and coal dust mixed combustion.
The object of the present invention is achieved like this: a kind of multichannel mixed fuel firing device, comprise igniter tube channel and the coaxial successively from inside to outside outer interior airduct of igniter tube channel that is set in, tornadotron, wind coal pipe, natural gas tube, outer airduct, wind nozzle in the airduct outlet air end is connected with in described, interior wind nozzle periphery is arranged with the whirlwind nozzle successively, wind coal nozzle, the natural gas nozzle, the exogenous wind nozzle, described whirlwind nozzle is connected the tornadotron outlet air end, wind coal nozzle is connected wind coal pipe outlet air end, the natural gas nozzle is connected the natural gas tube outlet air end, the exogenous wind nozzle is connected outer airduct outlet air end, be provided with the wind deflector that produces eddy flow wind between tornadotron and the interior airduct, airduct air intake in described, the tornadotron air intake, outer airduct air intake all links to each other with air-supply passage, is provided with igniter in the igniter tube channel.
The course of work that the present invention adopts coal dust to mix as combustion fuel with natural gas is: behind the firing point firearm, coal dust and natural gas enter through wind coal pipe and natural gas tube respectively, after both nozzle places are mixed, ignited by igniter, simultaneously, axially wind, eddy flow wind, center wind respectively through outer airduct, tornadotron, interior airduct by nozzle output separately, for the burning of fuel combination provides sufficient oxygen, make that mixed fuel firing is abundant more, flame reaches optimal combustion state.
Beneficial effect of the present invention is: among the present invention, by coal dust is mixed the burning that acts as a fuel with natural gas, make when reducing the coal dust use amount also have fired state preferably, combustion of natural gas produces carbon dioxide and water, has reduced the pollution that simple coal combustion brings; Natural gas tube, wind coal pipe are arranged between the outer airduct and tornadotron as a wind efferent duct, make natural gas fully mix at nozzle exit with coal dust, and it is more abundant to burn; Simultaneously, because coal dust is graininess, quality is bigger, the good stability of the eddy flow wind that tornadotron blows out, both combine, and coal dust can be blowed farther, make burned flame be elongated, heat generating spot can reduce the possibility of wind coal nozzle place high-temperature coking away from nozzle; Simultaneously, also increased flame internal reflux district, improved the burning ignition condition, so that further finish abundant burning; Because air has the characteristic of diffusion, therefore, the eddy flow wind of formation must be positioned at and preferably abut against wind coal pipe inboard; In addition, eddy flow wind is distributed in the air outside, center, and the center air is formed certain constraint effect, has guaranteed that also the position of center air and coal dust mixed combustion can equally also can avoid the situation of wind coal nozzle place high-temperature coking to take place as far as possible away from nozzle; Have again, natural gas tube is arranged on wind coal pipe periphery, because flame flame core temperature is relatively low, make the natural gas of natural gas nozzle output the certain protection effect be arranged to the wind coal, play heat insulation relatively effect, avoided causing the place's coking of wind coal nozzle, guaranteed the stability of burning, made mixed fuel firing more abundant owing to temperature is too high; Utilize wind of multichannel output, reduced primary air ratio, and the secondary wind of the injection high temperature that the high speed shaft of exogenous wind nozzle output aweather can also be a large amount of, guarantee flame profile preferably simultaneously, thereby improved combustion efficiency.
As improvement of the present invention, the front end of described igniter tube channel stretches out interior airduct, and is folded with the center orifice plate between igniter tube channel and the interior wind nozzle.Make that the inside and outside combustion tube can be coaxial.And the flame root can be introduced more high temperature CO
2Gas is to reduce O
2Component.
As improvement of the present invention, between described whirlwind nozzle and the wind coal nozzle, be provided with brace rod between wind coal nozzle and the natural gas nozzle.Strengthen the structural stability of burner, thereby guaranteed combustion stability.
As improvement of the present invention, described exogenous wind nozzle is provided with interior step.Make the exogenous wind nozzle exceed the length of all the other nozzles, this position distribution has caused the burning initial stage can form the very extended pattern air-flow of rapid expanding, has guaranteed flame profile preferably.
As improvement of the present invention, described interior step is connected to natural gas nozzle periphery, and is evenly distributed with several circular holes on the interior step.Reduced the outer nozzle discharge area, and on the basis that has guaranteed exit momentum, increased the rigidity of flame, reduced primary air flow, the more suction rolled up secondary air flow, strengthened combustion efficiency.
As improvement of the present invention, the interior step on the described exogenous wind nozzle, natural gas nozzle, wind coal nozzle, whirlwind nozzle and interior radially coplane setting of wind nozzle.Feasible burning is more abundant.
As improvement of the present invention, described each nozzle interior exit is provided with the conical surface.Play wind muzzle velocity of adjusting and swirl strength, accelerated the mixing velocity of fuel and combustion air, and form high temperature recirculation zone, improve burning situation, make burning fully, and form the exteenal reflux air film, protect kliner coating in flame middle and lower reaches district at flame kernel.
As improvement of the present invention, the corresponding butterfly valve that is provided with airduct in Pressure gauge and the control, tornadotron, the interior intake of outer airduct on the described air-supply passage.In order to wind speed, the air quantity of controlling each air channel nozzle, make fuel combination fully to burn.
As improvement of the present invention, described outer airduct periphery is provided with protective sleeve.In order to the protection burner, than less wear.
As improvement of the present invention, described natural gas tube, wind coal pipe, tornadotron, interior airduct are joint pipe structure.This structure easy installation and removal.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an A place enlarged drawing among Fig. 1.
Wherein, airduct, 301 ' interior wind nozzle, 302 tornadotrons, 302 ' whirlwind nozzle, 303 outer airducts, 303 ' exogenous wind nozzle, 4 natural gas tubes, 4 ' natural gas nozzle, 5 Pressure gauges, 6 butterfly valves, 7 interior steps, 8 brace rods, 9 wind deflectors, 10 center orifice plates, 11 igniters in 1 igniter tube channel, 2 wind coal pipes, 2 ' wind coal nozzle, 3 air-supply passages, 301.
The specific embodiment
As Fig. 1; 2; 3 are depicted as a kind of multichannel mixed fuel firing device; comprise igniter tube channel 1 and the coaxial successively from inside to outside interior airduct 301 that is set in outside the igniter tube channel 1; tornadotron 302; wind coal pipe 2; natural gas tube 4; outer airduct 303; wind nozzle 301 ' in airduct 301 outlet air ends are connected with in described; interior wind nozzle 301 ' periphery is arranged with whirlwind nozzle 302 ' successively; wind coal nozzle 2 '; natural gas nozzle 4 '; exogenous wind nozzle 303 '; whirlwind nozzle 302 ' is connected tornadotron 302 outlet air ends; wind coal nozzle 2 ' is connected wind coal pipe outlet air end; natural gas nozzle 4 ' is connected natural gas tube 4 outlet air ends; exogenous wind nozzle 303 ' is connected outer airduct 303 outlet air ends; the front end of igniter tube channel 1 stretches out interior airduct 301; and be folded with center orifice plate 10 between igniter tube channel 1 and the interior wind nozzle 301 '; be provided with the wind deflector 9 that produces eddy flow wind between tornadotron 302 and the interior airduct 301; interior airduct 301 air intakes; tornadotron 302 air intakes; outer airduct 303 air intakes all link to each other with air-supply passage 3; be provided with igniter 11 in the igniter tube channel 1; between whirlwind nozzle 302 ' and the wind coal nozzle 2 '; be provided with brace rod 8 between wind coal nozzle 2 ' and the natural gas nozzle 4 '; exogenous wind nozzle 303 ' is provided with interior step 7; interior step 7 is connected to natural gas nozzle 4 ' periphery; and be evenly distributed with several circular holes on the interior step 7; interior step 7 on the exogenous wind nozzle 303 '; natural gas nozzle 4 '; wind coal nozzle 2 '; whirlwind nozzle 302 ' and interior radially coplane setting of wind nozzle 301 '; each nozzle interior exit is provided with the conical surface; correspondence is provided with airduct 301 in Pressure gauge 5 and the control on the air-supply passage 3; tornadotron 302; the butterfly valve 6 of intake in the outer airduct 303; outer airduct 303 peripheries are provided with protective sleeve, natural gas tube 4; wind coal pipe 2; tornadotron 302; interior airduct 301 is joint pipe structure.
When the present invention works, behind the firing point firearm 11, coal dust and natural gas enter through wind coal pipe and natural gas tube 4 respectively, after both nozzle places are mixed, ignited and smooth combustion by igniter 11, axially wind, eddy flow wind, center wind are exported by nozzle separately through outer airduct 303, tornadotron 302, interior airduct 301 respectively, the oxygen of abundance is provided for the burning of fuel combination, make that mixed fuel firing is abundant more, flame reaches optimal combustion state, the raising of flame burning effect, improve the efficient of calcining, thereby improved production efficiency; Mix as fuel combination NO when having reduced the single-fuel coal dust firing with coal dust by adding natural gas
xDischarge capacity, adopt the green energy resource natural gas to act as a fuel, when guaranteeing combustion efficiency, played the effect of energy-saving and emission-reduction, the structural feature of the present invention also guarantees the optimum state of flame calcining.
The present invention is not limited to the foregoing description; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection scope of the present invention.
Claims (10)
1. multichannel mixed fuel firing device, it is characterized in that: comprise igniter tube channel and the coaxial successively from inside to outside outer interior airduct of igniter tube channel that is set in, tornadotron, wind coal pipe, natural gas tube, outer airduct, wind nozzle in the airduct outlet air end is connected with in described, interior wind nozzle periphery is arranged with the whirlwind nozzle successively, wind coal nozzle, the natural gas nozzle, the exogenous wind nozzle, described whirlwind nozzle is connected the tornadotron outlet air end, wind coal nozzle is connected wind coal pipe outlet air end, the natural gas nozzle is connected the natural gas tube outlet air end, the exogenous wind nozzle is connected outer airduct outlet air end, be provided with the wind deflector that produces eddy flow wind between tornadotron and the interior airduct, airduct air intake in described, the tornadotron air intake, outer airduct air intake all links to each other with air-supply passage, is provided with igniter in the igniter tube channel.
2. a kind of multichannel mixed fuel firing device according to claim 1, it is characterized in that: the front end of described igniter tube channel stretches out interior airduct, and is folded with the center orifice plate between igniter tube channel and the interior wind nozzle.
3. a kind of multichannel mixed fuel firing device according to claim 1 and 2 is characterized in that: between described whirlwind nozzle and the wind coal nozzle, be provided with brace rod between wind coal nozzle and the natural gas nozzle.
4. a kind of multichannel mixed fuel firing device according to claim 1 and 2, it is characterized in that: described exogenous wind nozzle is provided with interior step.
5. a kind of multichannel mixed fuel firing device according to claim 4 is characterized in that: step is connected to natural gas nozzle periphery in described, and is evenly distributed with several circular holes on the interior step.
6. a kind of multichannel mixed fuel firing device according to claim 4 is characterized in that: the interior step on the described exogenous wind nozzle, natural gas nozzle, wind coal nozzle, whirlwind nozzle and interior radially coplane setting of wind nozzle.
7. a kind of multichannel mixed fuel firing device according to claim 1 and 2 is characterized in that: described each nozzle interior exit is provided with the conical surface.
8. a kind of multichannel mixed fuel firing device according to claim 1 and 2 is characterized in that: the corresponding butterfly valve that is provided with airduct in Pressure gauge and the control, tornadotron, the interior intake of outer airduct on the described air-supply passage.
9. a kind of multichannel mixed fuel firing device according to claim 1 and 2 is characterized in that: described outer airduct periphery is provided with protective sleeve.
10. a kind of multichannel mixed fuel firing device according to claim 1 and 2 is characterized in that: described natural gas tube, wind coal pipe, tornadotron, interior airduct are joint pipe structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100780 CN102183022A (en) | 2011-04-21 | 2011-04-21 | Multi-channel mixed fuel burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100780 CN102183022A (en) | 2011-04-21 | 2011-04-21 | Multi-channel mixed fuel burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102183022A true CN102183022A (en) | 2011-09-14 |
Family
ID=44569276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110100780 Pending CN102183022A (en) | 2011-04-21 | 2011-04-21 | Multi-channel mixed fuel burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102183022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112104A (en) * | 2015-09-14 | 2015-12-02 | 西北化工研究院 | Multichannel nozzle used for multi-component slurry gasification reactor and application of multichannel nozzle |
| CN106678788A (en) * | 2016-12-01 | 2017-05-17 | 安徽科达洁能股份有限公司 | Solid powder fuel burner and combustion method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756134A1 (en) * | 1995-07-25 | 1997-01-29 | Babcock Lentjes Kraftwerkstechnik GmbH | Method and burner for reducing the formation of NOx burning coal dust |
| JP2001012705A (en) * | 1999-06-30 | 2001-01-19 | Sumitomo Osaka Cement Co Ltd | Fuel combustor apparatus and combustion method for cement rotary kiln |
| CN200968602Y (en) * | 2006-06-28 | 2007-10-31 | 扬州市银焰机械厂 | Combusting device |
| CN201434389Y (en) * | 2009-05-14 | 2010-03-31 | 天津益友兴业机械有限公司 | Secondary reinforcement rotational flow cement combustor |
| CN201575462U (en) * | 2009-12-29 | 2010-09-08 | 襄樊大力机电技术有限公司 | Mixed pulverized coal and gas fuel burner for rotary kiln |
| CN201575459U (en) * | 2009-08-14 | 2010-09-08 | 胡文俊 | Kiln multi-channel coal gas and pulverized coal composite firing high-speed combustor |
| CN202048574U (en) * | 2011-04-21 | 2011-11-23 | 扬州市银焰机械厂 | Multichannel mixed fuel combustor |
-
2011
- 2011-04-21 CN CN 201110100780 patent/CN102183022A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756134A1 (en) * | 1995-07-25 | 1997-01-29 | Babcock Lentjes Kraftwerkstechnik GmbH | Method and burner for reducing the formation of NOx burning coal dust |
| JP2001012705A (en) * | 1999-06-30 | 2001-01-19 | Sumitomo Osaka Cement Co Ltd | Fuel combustor apparatus and combustion method for cement rotary kiln |
| CN200968602Y (en) * | 2006-06-28 | 2007-10-31 | 扬州市银焰机械厂 | Combusting device |
| CN201434389Y (en) * | 2009-05-14 | 2010-03-31 | 天津益友兴业机械有限公司 | Secondary reinforcement rotational flow cement combustor |
| CN201575459U (en) * | 2009-08-14 | 2010-09-08 | 胡文俊 | Kiln multi-channel coal gas and pulverized coal composite firing high-speed combustor |
| CN201575462U (en) * | 2009-12-29 | 2010-09-08 | 襄樊大力机电技术有限公司 | Mixed pulverized coal and gas fuel burner for rotary kiln |
| CN202048574U (en) * | 2011-04-21 | 2011-11-23 | 扬州市银焰机械厂 | Multichannel mixed fuel combustor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112104A (en) * | 2015-09-14 | 2015-12-02 | 西北化工研究院 | Multichannel nozzle used for multi-component slurry gasification reactor and application of multichannel nozzle |
| CN106678788A (en) * | 2016-12-01 | 2017-05-17 | 安徽科达洁能股份有限公司 | Solid powder fuel burner and combustion method |
| CN106678788B (en) * | 2016-12-01 | 2019-04-30 | 安徽科达洁能股份有限公司 | Powdered fuel burner and combustion method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201706487U (en) | Anthracite powdered coal burner for a rotary kiln | |
| CN100538177C (en) | Double passage ejection energy-saving burner | |
| CN101725969B (en) | Low-NOx pulverized coal burner | |
| CN201575462U (en) | Mixed pulverized coal and gas fuel burner for rotary kiln | |
| CN203099814U (en) | Pulverized coal burner | |
| CN105042585B (en) | Coal burner | |
| CN201475997U (en) | Coal dust burner with self-stabilizing capability, three-stage air-distribution and low NOx content | |
| CN201462853U (en) | Combustion nozzle used in lime rotary kiln | |
| CN105465780A (en) | Ultralow NOx pulverized coal burner | |
| CN209445351U (en) | A kind of low nitrogen coal burner of adjustable swirl blade | |
| CN202066024U (en) | Six-channel rotational-flow stable-flame stepless regulation multi-fuel combustor | |
| CN207527582U (en) | The low nitrogen rotational flow gas-fired combustor of flue gas recirculation built in gas-air Accurate Classification | |
| CN2577124Y (en) | Bispin five-duct fine coal burner for rotary furnace | |
| CN102734796A (en) | Low-quality coal burner | |
| CN206145669U (en) | Swirling flow pulverized coal burner | |
| CN204987008U (en) | Bispin STREAMING low heat value gas combustion ware | |
| CN102183022A (en) | Multi-channel mixed fuel burner | |
| CN202048574U (en) | Multichannel mixed fuel combustor | |
| CN105318330A (en) | Burner and method capable of improving combustion effect of heat storage type furnace | |
| CN104235837B (en) | Dual-cyclone mixed oxygen enrichment coal injection pipe for cement clinker rotary kiln | |
| CN102213422B (en) | Multi-channel mixed gas burner | |
| CN202209676U (en) | Coal spraying jet | |
| CN107860018A (en) | A kind of cement rotary kiln stove with coal dust pre-vaporized room | |
| CN202733886U (en) | Inferior coal burner | |
| CN102944014A (en) | Industrial boiler burner and industrial boiler with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |