CN2519120Y - Burner for rotary kiln - Google Patents
Burner for rotary kiln Download PDFInfo
- Publication number
- CN2519120Y CN2519120Y CN 02218385 CN02218385U CN2519120Y CN 2519120 Y CN2519120 Y CN 2519120Y CN 02218385 CN02218385 CN 02218385 CN 02218385 U CN02218385 U CN 02218385U CN 2519120 Y CN2519120 Y CN 2519120Y
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- CN
- China
- Prior art keywords
- burner
- coal
- wind
- rotary kiln
- pipe
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a burner for rotary kiln, consisting of an outer wind pipe, a coal wind pipe, an inner wind pipe and a central oil spray pipeline. The coal wind inlet pipe is arranged at the tail part of the burner and the inner wind pipe facing directly to the mouth of the coal wind inlet pipe is made into a cone shape wearable curved surface. Using the burner for rotary kiln can greatly improve the service life of the burner and reduce the processing difficulty of the burner.
Description
The utility model relates to a kind of novel rotary kiln burner, can be used for technical fields such as chemical industry, metallurgy, oil, electric power, building materials, is specially adapted to the cement manufacturing.
Burner is the indispensable Thermal Equipment of hot industry.Cement is the industrial products of a high energy consumption, and as cement industry kiln burner, its structure how, for energy-saving and cost-reducing, as to improve yield and quality, prolongation refractory brick and kiln body service life, reduction pernicious gas NO
xDischarging etc. very important effect is arranged.Along with continuous progress in science and technology, the cement industry rotary kiln has been developed into triple channel, the four-way of today by the single channel in past with burner.Multicenter combustor cement industry abroad is used widely, but does not popularize as yet at home.Chinese patent ZL00267634.6 proposes a kind of Rotary Cyclone 4-Duct Pulverized Coal Burner, form by outer airduct, coal airduct, interior airduct, center oil spout pipeline, external four-way burner has been done improvement, guarantee the jet velocity of exogenous wind road outlet, improve the coal dust burn-out degree, improve the stability of flame simultaneously, reduce the generation of pernicious gas.But all there is common defective in present multicenter combustor, comprises that the four-way burner of this patent design is no exception, and that is exactly that coal wind blast pipe always tilts to install from the middle part of burner.Fig. 1 is a general multicenter combustor coal wind blast pipe installation site schematic diagram.Wherein 1 is coal wind blast pipe, the 2nd, and interior airduct.Coal wind sprays into burner from coal wind blast pipe with very big speed, because coal wind is carried many coal dusts and chip secretly, makes over against the interior wind pipe wall at coal wind inlet place to be worn soon.
The purpose of this utility model is a kind of novel rotary kiln burner of design, coal wind blast pipe is installed in the afterbody of burner, and will be designed to wear-resisting curved surface over against the interior airduct at coal wind inlet place, has overcome the defective of existing rotary kiln with burner.Fig. 2 is the schematic diagram of the utility model rotary kiln with burner, and wherein 1 is coal wind blast pipe, the 2nd, and interior airduct.Coal wind enters the wear-resisting curved surface shunting of back along interior airduct, thus the wearing and tearing that alleviated internal airduct.
Narrate this rotary kiln burner configuration below in conjunction with accompanying drawing.Fig. 3 is a coal wind blast pipe installation site generalized section.Wherein 1 is coal wind blast pipe, the 2nd, and interior wind blast pipe, the 3rd, exogenous wind blast pipe, the 4th, exogenous wind outlet nozzle, the 5th, coal wind duct outlet, the 6th, interior wind channel outlet.Coal wind blast pipe is installed in the afterbody of burner, coal wind air intake pipe orifice over against inner wind pipe part make the wear-resisting curved surface of conical surface shape, the angle of the conical surface be from 30 ° to 120 ° can, its optimum angle is 90 °-100 °.Coal wind enters from coal wind blast pipe 1, just in time blows on the anti abrasive conical surface shape tube wall of interior airduct, is divided into two strands of air-flows up and down by the conical surface, has alleviated the wearing and tearing of the internal wind pipe wall of coal wind greatly.
This rotary kiln burner of our design is used in certain cement Co., Ltd.Use this rotary kiln to improve the service life of burner greatly, and reduced the difficulty of processing of burner with burner.
Claims (1)
1, a kind of rotary kiln burner, form by outer airduct, coal airduct, interior airduct, center oil spout pipeline, it is characterized in that coal wind blast pipe is installed in the afterbody of burner, coal wind air intake pipe orifice over against inner wind pipe part make the wear-resisting curved surface of conical surface shape, the angle of the conical surface is 30 °-120 °, and optimum angle is 90 °-100 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218385 CN2519120Y (en) | 2002-01-17 | 2002-01-17 | Burner for rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218385 CN2519120Y (en) | 2002-01-17 | 2002-01-17 | Burner for rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519120Y true CN2519120Y (en) | 2002-10-30 |
Family
ID=33697043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218385 Expired - Fee Related CN2519120Y (en) | 2002-01-17 | 2002-01-17 | Burner for rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519120Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408309B (en) * | 2008-11-26 | 2011-04-20 | 中冶焦耐工程技术有限公司 | Coal-powder combustor with abrasion-proof lining board |
-
2002
- 2002-01-17 CN CN 02218385 patent/CN2519120Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408309B (en) * | 2008-11-26 | 2011-04-20 | 中冶焦耐工程技术有限公司 | Coal-powder combustor with abrasion-proof lining board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |