CN2605476Y - Three-vortex muffle burner - Google Patents
Three-vortex muffle burner Download PDFInfo
- Publication number
- CN2605476Y CN2605476Y CN 03235812 CN03235812U CN2605476Y CN 2605476 Y CN2605476 Y CN 2605476Y CN 03235812 CN03235812 CN 03235812 CN 03235812 U CN03235812 U CN 03235812U CN 2605476 Y CN2605476 Y CN 2605476Y
- Authority
- CN
- China
- Prior art keywords
- main burner
- muffle furnace
- wind
- spiral case
- cavity
- 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.)
- Expired - Fee Related
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Abstract
A three cyclone muffle furnace burner is characterized in that two volutes arranged on the main burner are both connected to a blast pipe through pipelines. The volute close to the end is communicated to the cavity of the main burner, and the other volute is communicated to the lateral of the main burner and the cavity between the lateral jackets of the main burner. The jacket of the main burner lateral is also provided with a volute and a jacket. One end of the volute is connected to a tuyere, and the other end is communicated to the cavity between two jackets. In the three cyclone muffle furnace burner of the utility model, through the repeating swirling and preheating for the pulverized coal, the time for the heating, activating, gasification as well as the generation of chemical reaction of pulverized coal is sufficient. Thereby, the burn out level and the rate of gasification of the pulverized coal are enhanced, and the oil-free ignition of low-grade anthracite through the plasma torch is implemented.
Description
Technical field
The utility model relates to the Muffle furnace burner that the power plant uses, especially a kind of three spiral-flow type Muffle furnace burners.
Background technology
The most of power plant of China all is to adopt coal-burning boiler, and the quality of coal worse and worse, closes ash up to 40-50%, and fugitive constituent is low to 4-10%, because poor with ature of coal with the oil drop fire, burning of coal efficient is low, and flue dust and noxious gas emission are put greatly to be increased.At present, nearly all coal-burning boiler cold conditions ignition process all adopts heavy oil or light oil igniting, and so-called cold conditions igniting is exactly under black furnace, cold coal, cold wind condition, realizes ignition of the boiler.There are many insoluble problems in direct-firing Muffle furnace of the prior art to lighting lambskin: 1, the coal dust and the air mixture time of staying are short, can not provide time enough to make coal dust heating, activation, gasification and thermal chemical reaction, the after-flame degree and the rate of gasification of coal dust are very low; When 2, the disperse mode that enters coal dust in the Muffle furnace, air mixture is by Muffle furnace, have only fraction to contact with the high-temperature plasma torch, be heated, activate, gasification and chemical reaction, the heat that produces also deficiency can't remedy the not high defective of lambskin fugitive constituent so that the after-flame degree and the rate of gasification of coal dust and air are improved.
Summary of the invention
The purpose of this utility model just provides a kind ofly can not have the three spiral-flow type Muffle furnace burners that wet goods ion torch is lighted to lambskin.
Three spiral-flow type Muffle furnace burners of the present utility model are to form in direct-firing Muffle furnace basic engineering, two wind spiral cases are set on the Muffle furnace main burner, two wind spiral cases all link to each other with an airduct by pipeline, three pipe intersections are provided with flow distribution plate, wind spiral case by the end communicates with the main burner inner chamber, cavity between another wind spiral case and the main burner outside and outside chuck thereof communicates, on the chuck in the main burner outside wind spiral case and a chuck is set also, this wind spiral case one termination air port, the other end communicates with cavity between two chucks.The end of main burner and direct current pipeline join.
Three spiral-flow type Muffle furnace burner operation principles of the present utility model are: a wind (coal dust) enters the wind spiral case one time from airduct, produce eddy flow, coal dust is through plasma torch igniting, activation, burning produces high temperature, and with the intensification of the chuck cavity outside the main burner, the rotational flow coal dust preheating that another time wind spiral case is entered simultaneously, the coal dust after the preheating burns at the chuck inner chamber, also that it is outer simultaneously chuck preheating, the coal dust that enters from secondary wind spiral case burns through preheating earlier again.
Three spiral-flow type Muffle furnace burners of the present utility model pass through repeatedly eddy flow and preheating of coal dust, make coal dust the time enough heating be arranged, activate, gasify and produce thermal chemical reaction, thereby improve the after-flame degree and the rate of gasification of coal dust, realize not having oil drop combustion lambskin with plasma torch.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Two wind spiral cases 4 are set on the main burner 1 of three spiral-flow type Muffle furnace burners, 6, plasma ignition device 5 is arranged on wind spiral case 4, on the main burner 1 between 6, two wind spiral cases 4,6 pass through pipeline all links to each other with an airduct 8, three pipe intersections are provided with flow distribution plate 7, wind spiral case 6 by the end communicates with main burner 1 inner chamber, wind spiral case 6 inlets are provided with eddy flow flashboard 11, another wind spiral case 4 communicates with cavity 2 between main burner 1 outside and outside chuck thereof, one wind spiral case 3 and chuck also is set on the chuck in main burner 1 outside, these wind spiral case 3 one termination air ports, the other end communicates with cavity 12 between two chucks.The inlet end and the direct current pipeline 9 of main burner 1 join, and the joint is provided with direct current flashboard 10.
Claims (3)
1, a kind of three spiral-flow type Muffle furnace burners, it is characterized in that: two wind spiral cases (4 are set on the main burner (1), 6), plasma ignition device (5) is arranged on wind spiral case (4,6) on the main burner between (1), two wind spiral cases (4,6) all link to each other by pipeline with an airduct (8), three pipe intersections are provided with flow distribution plate (7), wind spiral case (6) by the end communicates with main burner (1) inner chamber, cavity (2) between another wind spiral case (4) and main burner (1) outside and outside chuck thereof communicates, on the chuck in main burner (1) outside wind spiral case (3) and a chuck is set also, wind spiral case (3) one termination air ports, the other end communicates with cavity (12) between two chucks.
2, three spiral-flow type Muffle furnace burners according to claim 1, it is characterized in that: the inlet end of main burner (1) and direct current pipeline (9) join, the joint is provided with direct current flashboard (10), and the other end of direct current pipeline (9) links to each other with an airduct (8).
3, three spiral-flow type Muffle furnace burners according to claim 1 is characterized in that: wind spiral case (6) inlet is provided with eddy flow flashboard (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235812 CN2605476Y (en) | 2003-03-11 | 2003-03-11 | Three-vortex muffle burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235812 CN2605476Y (en) | 2003-03-11 | 2003-03-11 | Three-vortex muffle burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605476Y true CN2605476Y (en) | 2004-03-03 |
Family
ID=34166486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235812 Expired - Fee Related CN2605476Y (en) | 2003-03-11 | 2003-03-11 | Three-vortex muffle burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605476Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101130B (en) * | 2007-08-14 | 2010-05-19 | 东南大学 | Plasma ignition combustion cartridge |
| CN102721049A (en) * | 2012-07-11 | 2012-10-10 | 曲大伟 | Plasma thermal cracking combustion apparatus of combination type pulverized coal furnace |
| EP2770257A4 (en) * | 2011-10-18 | 2015-07-08 | Shanghai Boiler Works Co Ltd | Plasma oil-free fire lighting system in oxygen-enriched environment |
-
2003
- 2003-03-11 CN CN 03235812 patent/CN2605476Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101130B (en) * | 2007-08-14 | 2010-05-19 | 东南大学 | Plasma ignition combustion cartridge |
| EP2770257A4 (en) * | 2011-10-18 | 2015-07-08 | Shanghai Boiler Works Co Ltd | Plasma oil-free fire lighting system in oxygen-enriched environment |
| CN102721049A (en) * | 2012-07-11 | 2012-10-10 | 曲大伟 | Plasma thermal cracking combustion apparatus of combination type pulverized coal furnace |
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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 |