CN201819218U - Horizontal internal mixing type ceramics burner used for top combustion stove - Google Patents
Horizontal internal mixing type ceramics burner used for top combustion stove Download PDFInfo
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- CN201819218U CN201819218U CN 201020561376 CN201020561376U CN201819218U CN 201819218 U CN201819218 U CN 201819218U CN 201020561376 CN201020561376 CN 201020561376 CN 201020561376 U CN201020561376 U CN 201020561376U CN 201819218 U CN201819218 U CN 201819218U
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Abstract
A horizontal internal mixing type ceramics burner used for top combustion stove belongs to the blast furnace iron making equipment technology field, is used for solving the problems of excess temperature and glowing red of the external furnace shell of burner for top combustion stove. The technical scheme is: the utility model comprises a circular combustion chamber and 6-20 burners; the burners are arranged uniformly on the circumference of the circular combustion chamber on the same horizontal plane; the burning nozzles of the burners are located on the inner wall of the circular combustion chamber; combustion air and gas are respectively let into a plurality of burners; the burners let with combustion air and the burners let with gas are arranged alternatively. Under the precondition of keeping reasonable vault temperature and flue temperature, the utility model completely solves the problem of excess temperature of the external furnace shell of burning nozzles used for top combustion stove, can reduce the temperature of the external furnace shell of the burning nozzle form 200 DEC to about 100 DEC, eliminates the hidden troubles of process and safety existing in hot-blast stoves, improves the hot blast temperature by 20 DEC, reduces coke ratio by 1.6kg/t, and can achieve great economic benefit.
Description
Technical field
The utility model relates to a kind of blast furnace ironmaking hot-blast stove gas burner, belongs to the blast furnace ironmaking equipment technical field.
Background technology
In blast furnace ironmaking equipment, hot-blast stove gas burner is the core position of hot-blast stove structure, and it is to be used for coal gas and air are mixed, and send to the combustion chamber internal combustion equipment, its working condition directly influences the hot-blast furnace temperature and the thermal efficiency.Burner is required mainly to comprise two aspects at first enough burning capacitys should be arranged, i.e. unit interval can send to, mix, burn needed coal gas amount and combustion-supporting air quantity, and discharge the exhaust gas volumn of generation unlikelyly causes excessive loss in head.Secondly also enough adjustable ranges should be arranged, coefficient of excess air can be regulated in 1.05～1.50 scopes.Should avoid coal gas and air in burner internal combustion, tempering, guarantee outside burner to mix rapidly, complete and stable burning.Whether the structure of burner rationally directly the exert oneself size of ability of decision hot-blast stove.
Hot-blast stove is more with the burner kind, can be divided into two classes from material: metal burning device and ceramic burner.In order to adapt to the requirement of high wind-warm syndrome, generally use ceramic burner, ceramic burner has that burning capacity is big, combustion intensity is high, flame is short, the air consumption coefficient is low, burning fully, and advantage such as flameholding.
Can be divided into diffusion combustion, dynamic combustion according to ceramic burner character, and marginal half diffusion combustion.That its structure can be divided into is telescopic, rectangle, three-port type and grid type ceramic burner.After the coal gas of preceding two kinds of burners, air go out burner, be in the combustion chamber, to mix, heat, burn substantially, belong to diffusion combustion; The coal gas of three-port type and grid type burner and air are to mix before burner basically, belong to dynamic combustion.Also have a kind of dicyclic ceramic burner, air and coal gas are a kind of half flame formula burners going out the mixing of burner forward part.It is between diffusion combustion and dynamic combustion.
In the structure of half flame formula burner, air enters in the annulus of outside from a side, and coal gas then enters in the central tube from opposite side, and combustion air, coal gas premix before going out burner, jet enter fully mixed combustion again behind the combustion chamber.But, because this kind burner air, coal gas can tempering phenomenon occur during premix under high temperature, high pressure before outlet, cause metal cylinder herein to be oxidized away gradually, make that the fire-resistant inserts in metal sleeve top is also washed away, cause combustor external furnace shell position temperature too high and rubescent, have hidden danger in technology and secure context.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of too high rubescent top combustion stove of the outside furnace shell position temperature of top burning type hot blast stove combustor of can avoiding with horizontal internal-mixing ceramic burner.
The technical scheme that solves the problems of the technologies described above is:
A kind of top combustion stove is with horizontal internal-mixing ceramic burner, it has a toroidal combustion chamber and 6-20 burner, burner is evenly distributed on same horizontal plane along the toroidal combustion chamber circumference, the burner of burner is positioned on the annular firing chamber interior walls, combustion air and coal gas are passed into respectively in a plurality of burners, feed the burner of combustion air and the burner of feeding coal gas and are spaced.
Above-mentioned top combustion stove is with horizontal internal-mixing ceramic burner, described burner is 2 * n (n=3-10), wherein n burner feeds combustion air, n burner feeds coal gas, and the combustor air flow center line of feeding coal gas and the angle of normal are greater than the combustor air flow center line that feeds combustion air and the angle of normal.
Above-mentioned top combustion stove is in the aperture that 9 diameter 110mm or 130mm are arranged respectively on the different angles with horizontal internal-mixing ceramic burner, the burner spout that described combustion air burner, gas burner enter toroidal combustion chamber.
Usefulness of the present utility model is:
Guaranteeing under rational dome temperature and the flue temperature prerequisite, thoroughly solving the too high problem of the outside stove skin temperature of top combustion stove burner, can make the outside stove skin of burner temperature be reduced to about 100 ℃ by 200 ℃.This technical scheme had both solved the technology of hot-blast stove existence and the hidden danger of secure context, had reduced the expense because of the rubescent grouting that takes place of the outside stove skin of burner again.Transform the back dome temperature and improve 20 ℃ than dome temperature before transforming, hot blast temperature also improves 20 ℃ thereupon, and expectation can reduce coke ratio 1.6kg/t, and can obtain huge economic benefit every year.
Description of drawings
Fig. 1 is a burner modular tile outlet expanded view of the present utility model;
Fig. 2 is combustion air burner of the present utility model, gas burner profile;
Fig. 3 is combustion air burner of the present utility model, gas burner horizontal cross;
Fig. 4 is combustion air burner of the present utility model, gas burner air-flow centerline sectional view.
Mark is as follows among the figure: annular firing chamber interior walls 1, burner spout 2, combustion air burner 3, gas burner 4, combustion air inlet 5, gas inlet 6, combustion air air-flow 7, coal gas air-flow 8, air-flow center line 9, toroidal combustion chamber 10.
The specific embodiment
The utility model is changed into combustion air, coal gas with combustion air, coal gas hybrid mode by the form of mixing once more in current burner front end premix, the combustion chamber and is directly entered in the combustion chamber form of mixing, burning, and has protected the vault refractory masonry.
Show among the figure, the utility model has a toroidal combustion chamber 10 and 2 * n burner (n=3-10), toroidal combustion chamber 10 is built by laying bricks or stones for cordierite mullite modular tile and is formed circular masonry, 2 * n burner is evenly distributed on same horizontal plane along the toroidal combustion chamber circumference, and the burner spout 2 of burner is positioned at annular firing chamber interior walls 1 exit.Burner inlet has been cancelled tube-in-tube structure, and each burner is only by a kind of gas medium, and n is passed through combustion air in 2 * n the burner, and n is passed through coal gas in addition, is spaced apart form.Combustion air, coal gas enter toroidal combustion chamber 10 by different burners respectively and carry out the mixing burning again, have protected the burner body structure.
In an embodiment of the present utility model, 2500m
3Blast funnace hot blast stove is provided with 12 burners, the center line of 12 burners is arranged on the same horizontal plane, burner adds 6 gas burner 4 interval modes according to 6 combustion air burners 3 and arranges, the arrangement that is arranged on different level with other hot-blast stove combustion airs, coal gas center line is compared, and more can guarantee the well-mixed effect of combustion air, coal gas.
Show among the figure that the burner spout 2 of each burner is in different angles and is provided with 9 apertures, plays the effect that thread is cut apart, can better mix after making combustion air and coal gas enter the combustion chamber.
Show among the figure, the combustor air flow center line 9 of feeding coal gas is 17 ° with the angle with normal, feeding the combustor air flow center line 9 of combustion air and the angle of normal is 14 °, and the air-flow of n group combustion air burner and n group gas burner is tangential on two circles in toroidal combustion chamber 10 spaces respectively.The diameter that the combustion air air-flow 7 of 6 combustion air burners 3 of an embodiment of the present utility model and the coal gas air-flow 8 of 6 gas burners 4 are tangential on respectively in toroidal combustion chamber 10 spaces is two circles of 1261mm, 1500mm.
Operating characteristic of the present utility model is:
Combustion air, coal gas are respectively from passing through with the spaced apart burner of n+n form, cut apart by exit different angles aperture thread and to enter the combustion chamber, owing to the burner center line that two kinds of gas mediums pass through is different with its normal center line angle, combustion air and coal gas are tangential on two circles after entering the combustion chamber, mix then, heat and burn, the product of burning is constantly made swirling motion downwards, avoids flame, airflow scouring vault and furnace wall.
According to technical scheme described in the utility model, guaranteeing under rational dome temperature and the flue temperature prerequisite, thoroughly solved the too high problem of the outside stove skin temperature of top combustion stove burner, can make the outside stove skin of burner temperature be reduced to about 100 ℃ by 200 ℃.This technical scheme had both solved the technology of hot-blast stove existence and the hidden danger of secure context, had reduced the expense because of the rubescent grouting that takes place of the outside stove skin of burner again.Transform the back dome temperature and improve 20 ℃ than dome temperature before transforming, hot blast temperature also improves 20 ℃ thereupon, and expectation can reduce coke ratio 1.6kg/t, and can obtain huge economic benefit every year.
Claims (3)
1. a top combustion stove is with horizontal internal-mixing ceramic burner, it is characterized in that: it has a toroidal combustion chamber [10] and 6-20 burner, burner is evenly distributed on same horizontal plane along toroidal combustion chamber [10] circumference, the burner of burner is positioned on the annular firing chamber interior walls [1], combustion air and coal gas are passed into respectively in a plurality of burners, feed the burner of combustion air and the burner of feeding coal gas and are spaced.
2. top combustion stove according to claim 1 is with horizontal internal-mixing ceramic burner, it is characterized in that: described a plurality of burners are 2 * n, wherein n burner feeds combustion air, n burner feeds coal gas, the combustor air flow center line [9] of feeding coal gas and the angle of the angle of normal greater than combustor air flow center line [9] that feeds combustion air and normal, in the following formula, n=3-10.
3. top combustion stove according to claim 2 is characterized in that with horizontal internal-mixing ceramic burner: the burner spout [2] that described combustion air burner [3], gas burner [4] enter toroidal combustion chamber [10] is in that 9 diameters are arranged respectively on the different angles is the aperture of 110mm or 130mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020561376 CN201819218U (en) | 2010-10-14 | 2010-10-14 | Horizontal internal mixing type ceramics burner used for top combustion stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020561376 CN201819218U (en) | 2010-10-14 | 2010-10-14 | Horizontal internal mixing type ceramics burner used for top combustion stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819218U true CN201819218U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020561376 Expired - Fee Related CN201819218U (en) | 2010-10-14 | 2010-10-14 | Horizontal internal mixing type ceramics burner used for top combustion stove |
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| Country | Link |
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| CN (1) | CN201819218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696959A (en) * | 2015-03-03 | 2015-06-10 | 兆轩能科技有限公司 | Burner and igniter thereof |
| CN107062205A (en) * | 2017-05-15 | 2017-08-18 | 内蒙古科技大学 | A kind of efficiently mixing, homogenous combustion, wall cool down gas fuel burning apparatus certainly |
| KR20180088834A (en) * | 2015-11-30 | 2018-08-07 | 풀 부르스 리프랙토리 앤드 엔지니어링 게엠베하 | The upper combustion furnace |
-
2010
- 2010-10-14 CN CN 201020561376 patent/CN201819218U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696959A (en) * | 2015-03-03 | 2015-06-10 | 兆轩能科技有限公司 | Burner and igniter thereof |
| KR20180088834A (en) * | 2015-11-30 | 2018-08-07 | 풀 부르스 리프랙토리 앤드 엔지니어링 게엠베하 | The upper combustion furnace |
| JP2018535327A (en) * | 2015-11-30 | 2018-11-29 | ポール ヴルス リフラクトリー アンド エンジニアリング ゲーエムベーハーＰＡＵＬ ＷＵＲＴＨ ＲＥＦＲＡＣＴＯＲＹ＆ ＥＮＧＩＮＥＥＲＩＮＧ ＧｍｂＨ | Top combustion furnace |
| US11142804B2 (en) | 2015-11-30 | 2021-10-12 | Paul Wurth Deutschland Gmbh | Top combustion stove |
| JP7186090B2 (en) | 2015-11-30 | 2022-12-08 | ポールワースドイチェラントゲーエムベーハー | top burning furnace |
| KR102616621B1 (en) * | 2015-11-30 | 2023-12-20 | 풀 부르스 도이칠란드 게엠베하 | top burning stove |
| CN107062205A (en) * | 2017-05-15 | 2017-08-18 | 内蒙古科技大学 | A kind of efficiently mixing, homogenous combustion, wall cool down gas fuel burning apparatus certainly |
| CN107062205B (en) * | 2017-05-15 | 2023-07-25 | 内蒙古科技大学 | High-efficiency mixed, uniform-combustion and wall self-cooling gas fuel combustion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20111014 |