CN101839479B - Powdered coal burner head with high efficiency and low wear - Google Patents
Powdered coal burner head with high efficiency and low wear Download PDFInfo
- Publication number
- CN101839479B CN101839479B CN201010211188.6A CN201010211188A CN101839479B CN 101839479 B CN101839479 B CN 101839479B CN 201010211188 A CN201010211188 A CN 201010211188A CN 101839479 B CN101839479 B CN 101839479B
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- head
- urceolus
- powdered coal
- outer drum
- coal burner
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Abstract
The invention relates to a powdered coal burner head with high efficiency and low wear, which belongs to the cement technical field. The powdered coal burner head is characterized in that the powdered coal burner head is of a component structure and sequentially comprises a head large outer drum, a middle large outer drum, a head outer drum, a middle outer drum, a head ejector and a head swirler from outside to inside, the head large outer drum is connected with the middle large outer drum, the head outer drum is connected with the middle outer drum, the circumference of the end plane of the head ejector is evenly provided with round holes, a head powdered coal outlet is directly connected with a middle powdered coal outlet through threads. The head swirler is provided with a swirl channel. The invention has the advantages of simple structure, compact assembly, saving energy, reducing consumption, full combustion, high efficiency, little abrasion, flexible adjustment, convenient maintenance, safe operation, high device running rate, long service life and extensive use range.
Description
Technical field
The invention belongs to cement technology field, particularly relate to a kind of powdered coal burner head of high efficiency and low wear.
Background technology
At present, coal burner is the important Thermal Equipment of cement plant calcination of cement clinker, and the quality of its serviceability and the length in service life directly affect stable, the realization of rotary kiln technical performance index and the seed output and quality of clinker of firing system thermal regulation.And the result of use of burner and service life, depend primarily on performance and the wearability of its head assembly.In current manufacture of cement, frequent appearance stops the phenomenon of kiln maintenance in advance because of the head assembly wearing and tearing of coal burner, also often occur the problem that the coal burner because selecting causes performance indications not reach firing system calcining requirement because head piece design is unreasonable.
Summary of the invention
The present invention provides a kind of powdered coal burner head of high efficiency and low wear for solving in known technology the technical problem that exists.
The object of this invention is to provide one and there is structure simply, assemble compact, energy-saving and cost-reducing, sufficient combustion, efficiency is high, weares and teares little, and flexible adjustment is easy to maintenance, handling safety, the powdered coal burner head of the high efficiency and low wear of the features such as operation rate is high, long service life, and the scope of application is wide.The technical scheme that the powdered coal burner head of high efficiency and low wear of the present invention is taked is: a kind of powdered coal burner head of high efficiency and low wear, be characterized in: powdered coal burner head is modular structure, assembly is followed successively by the large urceolus of head, the large urceolus in middle part, head urceolus, middle part urceolus, head-shooter and head cyclone from outside to inside; The large urceolus of head connects the large urceolus in middle part, and head urceolus connects middle part urceolus, and head-shooter end face circumference is evenly distributed with circular hole, and head discharge, middle part discharge are directly connected by screw thread, and head cyclone offers eddy flow passage.
The powdered coal burner head of high efficiency and low wear of the present invention can also adopt following technical scheme: the powdered coal burner head of described high efficiency and low wear, is characterized in: the large urceolus of head has attachment bolt to be connected in the mode of flange contact facings shimming with the large urceolus in middle part.
The powdered coal burner head of described high efficiency and low wear, is characterized in: it is the direct connected mode of screw thread that head urceolus connects middle part urceolus.
The powdered coal burner head of described high efficiency and low wear, is characterized in: head-shooter end face circumference is evenly distributed with 10-20 circular hole.
The powdered coal burner head of described high efficiency and low wear, is characterized in: head-shooter has the direct injector connector of screw thread.
The powdered coal burner head of described high efficiency and low wear, is characterized in: head cyclone offers 18-30 eddy flow passage.
The powdered coal burner head of described high efficiency and low wear, is characterized in: head cyclone device has screw thread directly to connect cyclone connector.
The advantage that the present invention has and good effect are: the powdered coal burner head of high efficiency and low wear is owing to have employed the brand-new technical scheme of the present invention, compared with prior art, the present invention has following characteristics: adaptable 1, to coal, incendivity bituminous coal, anthracite, colm and other substitute fuel; 2, energy-saving and cost-reducing, minimizing air quantity, reduces hear rate; 3, reduce harmful substance NOx to produce and discharge; 4, function admirable, regulates fast nimble, and maintenance is convenient; 5, burner wearing and tearing are little, and the life-span is long.
It is simple that the present invention has structure, assembles compact, and energy-saving and cost-reducing, sufficient combustion, efficiency is high, weares and teares little, and flexible adjustment is easy to maintenance, handling safety, the advantages such as operation rate is high, long service life, and the scope of application is wide.
Accompanying drawing explanation
Fig. 1 is the powdered coal burner head structural representation of high efficiency and low wear; Fig. 2 is perspective view of the present invention.
In figure, discharge, 9-head cyclone, 10-cyclone connector in the middle part of urceolus, 5-head-shooter, 6-injector connector, 7-head discharge, 8-in the middle part of large urceolus, 3-head urceolus, 4-in the middle part of the large urceolus of 1-head, 2-.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows: accompanying drawings 1 and Fig. 2.
The efficient coal burner head without wearing and tearing of embodiment 1 one kinds, is made up of the large urceolus of head, the large urceolus in middle part, head urceolus, middle part urceolus, head-shooter, injector connector, head discharge, middle part discharge, head cyclone, cyclone connector.It is characterized by the large urceolus of head, the large urceolus in middle part is connected in the mode of flange contact facings shimming by attachment bolt; Head urceolus, middle part urceolus are directly connected by screw thread; Head-shooter, its end face circumference is uniformly distributed 16 circular holes, and head-shooter and described injector connector are directly connected by screw thread; Head discharge, middle part discharge are directly connected by screw thread; Head cyclone, offers 24 eddy flow passages altogether, and head cyclone device and described cyclone device connector are directly connected by screw thread.
The operating procedure of the present embodiment is as follows: 1. the coal burner head assembly of high efficiency and low wear is four air channel structure patterns, and air channel order is: (from outside to inside) cooling air, axial flow wind, coal wind, Whirl deposite tank.
2. by designing the Proper Match of axial flow air channel, coal air channel, swirl air duct three main channels, the negative pressure entrainment block that coal burner head is larger can be realized, so just effectively can entrainment the Secondary Air of high temperature, guarantee the stable ignition burning of coal powder in kiln head, outermost cooling air channel effectively can prevent the head wearing and tearing of burner and keep the flame of definite shape simultaneously, prevents the phenomenon of localized hyperthermia's scaling loss kliner coating.
3. burner head due to passage wind speed higher, the thrust of burner is large, can meet the abundant after-flame of various fuel, very favourable to the utilization improving colm.Simultaneously because once clean air quantity is low, the corresponding growing amount reducing systemic adverse composition NOx.
The exclusive design of the present invention solves the problems referred to above that in current manufacture of cement, coal burner head assembly exists, and the coal burner head assembly a kind of function admirable being provided, regulating nimble quick, maintenance convenience, low wearing and tearing, life-span to grow.Its operation principle is: have employed the structure that injector combines with cyclone, and by rational matched design, is different muzzle velocities, thus achieves the high speed difference of latest modern and strong eddy flow by the air design flowed in each air channel.
Claims (1)
1. a powdered coal burner head for high efficiency and low wear, is characterized in that: powdered coal burner head is modular structure, and assembly is followed successively by the large urceolus of head, the large urceolus in middle part, head urceolus, middle part urceolus, head-shooter and head cyclone from outside to inside; The large urceolus of head connects the large urceolus in middle part, and head urceolus connects middle part urceolus, and head-shooter end face circumference is evenly distributed with circular hole, and head discharge, middle part discharge are directly connected by screw thread, and head cyclone offers eddy flow passage; The large urceolus of head has attachment bolt to be connected in the mode of flange contact facings shimming with the large urceolus in middle part; It is the direct connected mode of screw thread that head urceolus connects middle part urceolus; Head-shooter end face circumference is evenly distributed with 10-20 circular hole; Head-shooter has the direct injector connector of screw thread; Head cyclone offers 18-30 eddy flow passage; Head cyclone has screw thread directly to connect cyclone connector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010211188.6A CN101839479B (en) | 2010-06-28 | 2010-06-28 | Powdered coal burner head with high efficiency and low wear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010211188.6A CN101839479B (en) | 2010-06-28 | 2010-06-28 | Powdered coal burner head with high efficiency and low wear |
Publications (2)
Publication Number | Publication Date |
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CN101839479A CN101839479A (en) | 2010-09-22 |
CN101839479B true CN101839479B (en) | 2015-02-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201010211188.6A Expired - Fee Related CN101839479B (en) | 2010-06-28 | 2010-06-28 | Powdered coal burner head with high efficiency and low wear |
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CN (1) | CN101839479B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113464933A (en) * | 2021-07-02 | 2021-10-01 | 合肥水泥研究设计院有限公司 | Swirler with gradually changed spiral angle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002139212A (en) * | 2000-11-01 | 2002-05-17 | Daido Steel Co Ltd | Powder melting burner |
CN2577124Y (en) * | 2002-11-10 | 2003-10-01 | 王姝森 | Bispin five-duct fine coal burner for rotary furnace |
CN1892107A (en) * | 1996-12-27 | 2007-01-10 | 住友大阪水泥股份有限公司 | Device and method for combustion of fuel |
US7669421B2 (en) * | 2005-04-22 | 2010-03-02 | Mitsubishi Heavy Industries, Ltd. | Combustor of gas turbine with concentric swirler vanes |
CN201706488U (en) * | 2010-06-28 | 2011-01-12 | 天津水泥工业设计研究院有限公司 | Pulverized coal burner head with high efficiency and low attrition |
-
2010
- 2010-06-28 CN CN201010211188.6A patent/CN101839479B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1892107A (en) * | 1996-12-27 | 2007-01-10 | 住友大阪水泥股份有限公司 | Device and method for combustion of fuel |
JP2002139212A (en) * | 2000-11-01 | 2002-05-17 | Daido Steel Co Ltd | Powder melting burner |
CN2577124Y (en) * | 2002-11-10 | 2003-10-01 | 王姝森 | Bispin five-duct fine coal burner for rotary furnace |
US7669421B2 (en) * | 2005-04-22 | 2010-03-02 | Mitsubishi Heavy Industries, Ltd. | Combustor of gas turbine with concentric swirler vanes |
CN201706488U (en) * | 2010-06-28 | 2011-01-12 | 天津水泥工业设计研究院有限公司 | Pulverized coal burner head with high efficiency and low attrition |
Non-Patent Citations (2)
Title |
---|
姚国镜,刘华峰.基于无烟煤为燃料的TJB燃烧器的使用效果及性能分析.《新世纪水泥导报》.2010,(第2期),第27-30页. * |
徐丽娟,曾学锋,夏敬贤.四通道回转窑燃烧器的开发、研制与应用.《水泥工程》.2004,(第3期),第44-47页. * |
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CN101839479A (en) | 2010-09-22 |
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