CN2168168Y - Coal-burning device through fluidic fine oxygen-decompsing - Google Patents
Coal-burning device through fluidic fine oxygen-decompsing Download PDFInfo
- Publication number
- CN2168168Y CN2168168Y CN 93223772 CN93223772U CN2168168Y CN 2168168 Y CN2168168 Y CN 2168168Y CN 93223772 CN93223772 CN 93223772 CN 93223772 U CN93223772 U CN 93223772U CN 2168168 Y CN2168168 Y CN 2168168Y
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- CN
- China
- Prior art keywords
- oxygen
- coal
- hole
- shower nozzle
- holes
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- Expired - Fee Related
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Abstract
The utility model discloses a coal-burning device through the fluidic fine oxygen and coal decomposition. The utility model comprises a fluidic fine oxygen and coal decomposition spray head, an outer sleeve pipe, an inner sleeve pipe, an oxygen conveying pipe, and a coal conveying pipe. The upper part of the fluidic fine oxygen and coal decomposition spray head is designed with inclined and straight staggered holes, such as a coal jetting straight hole, four oxygen jetting straight holes, and four oxygen jetting inclined holes, or three coal jetting inclined holes, nine oxygen jetting straight holes, and three oxygen jetting inclined holes. According to the requirement of the coal dust combustion, the oxygen supply in a segment way can be realized, which can ensure that the sufficient oxygen can be offered to the remnant coke combustion, and avoids the violent combustion at the neighborhood of the spray head to prevent the spray head from damaging.
Description
The utility model relates to a kind of improved oxy coal burner, particularly a kind of oxy coal burner that is used for the rich-oxygen of blast furnace coal-injection process.
Existing oxy coal burner mainly is made up of eddy flow oxygen coal shower nozzle, outer tube, interior pipe, oxygen cathete and coal chute; Form annular oxygen supply circumferential weld between outer tube and the interior pipe; In the oxygen supply circumferential weld of oxygen coal shower nozzle swirl vane is set.When oxygen when peroxide coal shower nozzle swirl vane flows out, form rotating jet, and can mix rapidly with the coal dust that interior pipe is exported in the shower nozzle exit.When oxygen supply intensity was big, oxygen will absorb a large amount of heat energy, had reduced coal dust intensification, gasification rate, had caused coal combustion rate low.And when oxygen supply intensity hour, near the oxygen coal vigorous reaction shower nozzle easily makes oxygen coal shower nozzle scaling loss, shortens oxy coal burner service life.
The utility model aims to provide and a kind ofly can guarantee that coal dust heats up, gasification rate is fast, combustion rate is high, can avoid the jet segmentation oxy coal burner of oxygen coal shower nozzle scaling loss again.
The utility model is finished by the following technical programs: it comprises jet segmentation oxygen coal shower nozzle, outer tube, interior pipe, oxygen cathete and coal chute composition; Form annular oxygen supply circumferential weld between outer tube and the interior pipe.The aperture of the some oblique orthogonal mistakes of design on jet segmentation oxygen coal shower nozzle is to form the segmentation oxygen jet.Jet segmentation oxygen coal shower nozzle and outer tube and interior pipe are respectively with being threaded.When oxygen with pattern during from the ejection of jet segmentation oxygen coal shower nozzle, have long range and will just mix from most of oxygen of straight hole ejection in downstream with a certain distance from shower nozzle with coal dust, reduced the cooling effect of oxygen, coal dust can obtain Fast Heating and gasification is caught fire, during required oxygen mainly provide and be unlikely to take place violent burning by the fraction oxygen of inclined hole ejection.Coal dust is residual defocused through being gasificated as, and the oxygen that the required oxygen of its burning can be sprayed by the straight hole of preheating just provides.So realized needing sectional oxygen supply according to burning, both guaranteed that the coal dust gasification that is rapidly heated is reaching fire burns, also can guarantee to residual burnt burning provides sufficient oxygen, can avoid near the violent burning shower nozzle again, prevent the shower nozzle scaling loss.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2, Fig. 3 are jet segmentation oxygen coal shower nozzle embodiment one profile and left views in the utility model;
Fig. 4, Fig. 5, Fig. 6 are respectively segmentation oxygen coal shower nozzle embodiment two left views of jet in the utility model and along the profile of 1-1 line and 2-2 line.
The utility model is made up of jet segmentation oxygen coal shower nozzle (1), outer tube (2), interior pipe (3), oxygen cathete (4), coal chute (5), forms annular oxygen supply circumferential weld between outer tube (2) and the interior pipe (3).Jet segmentation oxygen coal shower nozzle (1) and outer tube (2) and interior pipe (3) are respectively with being threaded.
The coal powder injection hole of jet segmentation oxygen coal shower nozzle is a straight hole (8) among the utility model embodiment one, is positioned at the shower nozzle center; Oxygen spraying hole is 4 straight holes (9) and 4 inclined holes (7) of interlaced arrangement.The angle β of inclined hole center line and shower nozzle center line is 15 degree～30 degree.The oxygen of 4 inclined hole ejections is used for initiation combustion processes such as pulverized coal ignition, volatile matter burning, and the oxygen of 4 straight hole ejections is mainly used in the residual burnt burning of coal dust and waits the intermediary and later stages combustion process.
The coal powder injection hole of jet segmentation oxygen coal shower nozzle is the inclined hole (12) that 3 isogonisms are arranged among the utility model embodiment two, and the angle α of inclined hole center line and shower nozzle center line is 10 degree～20 degree; The hole that oxygen spraying hole is arranged by three groups of isogonisms constitutes.Every group of (11) 2 of little straight holes, (13) 1 of inclined hole that has (10) 1 of big straight holes and be positioned at big straight hole both sides.Wherein the diameter of big straight hole is 2 times of little straight hole diameter; The angle γ of the center line of inclined hole and the center line of shower nozzle is 10 degree～20 degree.The oxygen of inclined hole ejection is used for initiation combustion processes such as pulverized coal ignition, volatile matter burning, and the oxygen of straight hole ejection then is mainly used in the combustion process that the residual burnt burning of coal dust waits the intermediary and later stages.
Claims (3)
1, a kind of jet segmentation oxy coal burner of being made up of jet segmentation oxygen coal shower nozzle (1), outer tube (2), interior pipe (3), oxygen cathete (4) and coal chute (5) is characterized in that looping oxygen supply circumferential weld between outer tube (2) and the interior pipe (3); Jet segmentation oxygen coal shower nozzle (1) is gone up the hole that design has some oblique orthogonal mistakes; Jet segmentation oxygen coal shower nozzle (1) reaches interior pipe (3) with being threaded with outer tube (2).
2, the jet by claim 1 regulation segments oxy coal burner, the coal powder injection hole that it is characterized in that its jet segmentation oxygen coal shower nozzle (1) is a straight hole (8), oxygen spraying hole is 4 straight holes (9) and 4 inclined holes (7) of interlaced arrangement, and the angle β of inclined hole center line and shower nozzle center line is 15～30 degree.
3, by the jet segmentation oxy coal burner of claim 1 regulation, the coal powder injection hole that it is characterized in that its jet segmentation oxygen coal shower nozzle (1) is the inclined hole (12) that 3 isogonisms are arranged, the angle α of its center line and shower nozzle center line is 10～20 degree; The hole that oxygen spraying hole is arranged by three groups of isogonisms is formed, and wherein 1 big straight hole (10) is arranged in every group and is positioned at (11) 2 of little straight holes, (13) 1 of the inclined holes of big straight hole both sides.The diameter of big straight hole (10) is 2 times of little straight hole diameter; The center line of inclined hole (13) and the angle γ of shower nozzle center line are 10～20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223772 CN2168168Y (en) | 1993-09-13 | 1993-09-13 | Coal-burning device through fluidic fine oxygen-decompsing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223772 CN2168168Y (en) | 1993-09-13 | 1993-09-13 | Coal-burning device through fluidic fine oxygen-decompsing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168168Y true CN2168168Y (en) | 1994-06-08 |
Family
ID=33801998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223772 Expired - Fee Related CN2168168Y (en) | 1993-09-13 | 1993-09-13 | Coal-burning device through fluidic fine oxygen-decompsing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168168Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088173A (en) * | 2011-11-01 | 2013-05-08 | 张昭贵 | Blast furnace coal injection device, and mounting and operating methods thereof |
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN105864756A (en) * | 2016-05-20 | 2016-08-17 | 哈尔滨华氏海德科技发展有限公司 | Combined multi-nozzle burner for combustible powder |
| CN107191927A (en) * | 2017-07-07 | 2017-09-22 | 浙江宜清环境技术有限公司 | A kind of micro- oil type pure oxygen steady burning burner burner |
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
| CN112410487A (en) * | 2020-11-06 | 2021-02-26 | 黄子善 | Oxygen supply device for blast furnace coal injection |
-
1993
- 1993-09-13 CN CN 93223772 patent/CN2168168Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088173A (en) * | 2011-11-01 | 2013-05-08 | 张昭贵 | Blast furnace coal injection device, and mounting and operating methods thereof |
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN105864756A (en) * | 2016-05-20 | 2016-08-17 | 哈尔滨华氏海德科技发展有限公司 | Combined multi-nozzle burner for combustible powder |
| CN107191927A (en) * | 2017-07-07 | 2017-09-22 | 浙江宜清环境技术有限公司 | A kind of micro- oil type pure oxygen steady burning burner burner |
| CN109827173A (en) * | 2019-01-30 | 2019-05-31 | 曲大伟 | A kind of built-in expansion plasma thermal cracking igniting and jet stream coal powder burner |
| CN109827173B (en) * | 2019-01-30 | 2024-05-03 | 曲大伟 | Built-in telescopic plasma thermal cracking ignition and jet pulverized coal combustion device |
| CN112410487A (en) * | 2020-11-06 | 2021-02-26 | 黄子善 | Oxygen supply device for blast furnace coal injection |
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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 |