CN203807501U - Combustor of top-combustion type hot-blast stove - Google Patents
Combustor of top-combustion type hot-blast stove Download PDFInfo
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- CN203807501U CN203807501U CN201420238106.0U CN201420238106U CN203807501U CN 203807501 U CN203807501 U CN 203807501U CN 201420238106 U CN201420238106 U CN 201420238106U CN 203807501 U CN203807501 U CN 203807501U
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Abstract
The utility model provides a combustor of a top-combustion type hot-blast stove. The combustor of the top-combustion type hot-blast stove comprises an air distribution system, a coal gas distribution system, a wall, a vault and a combustor formed by surrounding of the wall and the vault, the air distribution system comprises multiple air nozzles, the coal gas distribution system comprises multiple coal gas nozzles, and the air nozzles and the coal gas nozzles are arranged at intervals for forming multiple air-coal gas nozzle assemblies which are parallel to each other. Multiple air-coal gas nozzle assemblies can cause the air and coal gas to be efficiently and fully mixed, and stable gas flow field can be guaranteed, so that combustion efficiency can be improved; meanwhile, the combustor of the top-combustion type hot-blast stove has the characteristics of novel and stable structure, easy implementation and the like, high blast temperature requirement of a large blast furnace to a top-combustion type hot-blast stove can be met, the air nozzles and the coal gas nozzles are arranged in a rotary cut shape, the sprayed air and coal gas can be mixed more fully, and combustion efficiency is further improved.
Description
Technical field
The utility model relates to iron-making heat wind furnace technical field of burner, particularly a kind of top burning type hot blast stove combustor.
Background technology
Hotblast stove is the equipment of hot blast that provides for blast furnace, is the indispensable important component part of modern blast furnace.What modern large blast furnace was at present the most frequently used is heat accumulating type checker brick hotblast stoves, and regenerative hot blast stove can be divided into top ignition by combustion system, internal combustion type, and external combustion types etc. are several.Its principle of work is the coal gas that first burns, with the checker brick of the flue gas heating regenerator producing, then cold wind is heated by red-hot checker brick, then by hotblast stove one after the other burn and blow, make blast furnace obtain continuously high-temperature hot-air.
Cowper stove is that combustion chamber and regenerator are arranged in the hotblast stove in same housing, and Cowper stove, because of its textural factor, exists the shortcomings such as combustion chamber cracks on partition walls string wind, partition wall top cave in, regenerator heating-surface area utilization ratio is lower; External burning type hotblast stove is to be developed by Cowper stove, and its combustion chamber is located at outside regenerator, and the top of two chambers connects in a certain way.The advantage of outside combustion stove is to have cancelled the partition wall of combustion chamber and regenerator, the problems such as cracks on partition walls that the temperature difference, pressure reduction etc. cause have fundamentally been solved, but have that investment is many, steel and refractory consumption rate is large, vault is complicated, need the shortcomings such as large amount of complex special shaped brick, limited its application.Top combustion stove refers to that burner is arranged on air heating furnace roof, utilizes vault space to burn, thereby has cancelled side combustion chamber or external combustion chamber.Top combustion stove because of its type of furnace simpler, structural stability is good, accumulation of heat indoor air flow distribution uniform, floor space is little, can save the advantages such as great deal of steel and refractory materials, obtained in recent years developing by leaps and bounds, be one of developing direction of high-blast-temperature hot-blast stove.The development of large-scale top combustion stove, its key is the design of powerful efficient short flame burner.At present, top-combustion hot blast stove ceramic burner is of a great variety, but space gas mixed effect is not good, air-flow skewness, and the phenomenon of combustion instability usually occurs, and has limited its application on large-scale and super-huge blast furnace.
Utility model content
The purpose of this utility model is to provide a kind of top burning type hot blast stove combustor, and it has many rows by air nozzle and the spaced set of nozzles of gasburner, can make air and coal gas high efficient mixed, improves efficiency of combustion.
To achieve these goals, the utility model proposes a kind of top burning type hot blast stove combustor, comprise: air distribution system, distribution system of gas, body of wall, vault and the combustion chamber being formed by body of wall and vault encirclement, wherein, described air distribution system comprises a plurality of air nozzles, described distribution system of gas comprises a plurality of gasburner, described air nozzle and gasburner are spaced and form a plurality of air-gasburner groups that are parallel to each other, described air distribution system and distribution system of gas are all positioned at body of wall, air and coal gas are spurted to combustion chamber by described air nozzle and gasburner respectively.
Further, described air distribution system comprises that air intake pipe, air distribute circuit and air nozzle pipeline, described air distributes circuit to be connected with air intake pipe, and described air nozzle pipeline distributes circuit to be connected with air, and described air nozzle is connected with air nozzle pipeline.
Further, described distribution system of gas comprises gas inlet pipeline, gas allocation circuit and gasburner pipeline, described gas allocation circuit is connected with gas inlet pipeline, and described gasburner pipeline is connected with gas allocation circuit, and described gasburner is connected with gasburner pipeline.
Further, described air distribution system also comprises full air nozzle group, described full air nozzle group is comprised of a plurality of air nozzles, described distribution system of gas also comprises full gasburner group, described full gasburner group is comprised of a plurality of gasburner, and described full air nozzle group and described full gasburner group are parallel to each other.
Further, the level height of described gas inlet pipeline is higher than the level height of described air intake pipe.
Further, the level height of described full gasburner group is higher than the level height of described full air nozzle group.
Further, the level height of described gas inlet pipeline is lower than the level height of described air intake pipe.
Further, the level height of described full gasburner group is lower than the level height of described full air nozzle group.
Further, described air-gasburner group is 2 rows, be respectively first row air-gasburner group and second row air-gasburner group, described first row air-gasburner group and second row air-gasburner group are between described full gasburner group and full air nozzle group, and the level height of described first row air-gasburner group is higher than the level height of second row air-gasburner group.
Further, the air nozzle in described first row air-gasburner group and gasburner be all towards second row air-gasburner group one side, and be the angle of 0～60 ° with sea line.
Further, the air nozzle in described second row air-gasburner group and gasburner be all towards first row air-gasburner group one side, and be the angle of 0～60 ° with sea line.
Further, air nozzle, the gasburner in described full air nozzle, full gasburner group, first row air-gasburner group and second row air-gasburner group all arranged symmetrically by rotary-cut shape.
Compared with prior art, the beneficial effects of the utility model are mainly reflected in: the top burning type hot blast stove combustor the utility model proposes comprises that many rows are by air nozzle and the spaced air-gasburner of gasburner group, can make the efficient fully mixing of air and coal gas, assurance gas flowfield is stable, thereby can improve efficiency of combustion, and it is stable that it has novel structure, implements the features such as easy, can meet the requirement of large blast furnace to the high wind-warm syndrome of top combustion stove.
Further, described air nozzle and gasburner adopt rotary-cut shape to arrange, can guarantee that air and the coal gas of ejection mixes fully, have further improved the efficiency of burning.
Accompanying drawing explanation
Fig. 1 be in the utility model one embodiment top burning type hot blast stove combustor along A-A in Fig. 3 to diagrammatic cross-section;
Fig. 2 be in the utility model one embodiment top burning type hot blast stove combustor along B-B in Fig. 4 to diagrammatic cross-section;
Fig. 3 be in the utility model one embodiment top burning type hot blast stove combustor along C-C in Fig. 1 or Fig. 2 to diagrammatic cross-section;
Fig. 4 be in the utility model one embodiment top burning type hot blast stove combustor along D-D in Fig. 1 or Fig. 2 to diagrammatic cross-section.
Embodiment
Below in conjunction with schematic diagram, top burning type hot blast stove combustor of the present utility model is described in more detail, wherein represented preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here, and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
For clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the utility model chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details to realize developer's specific objective, for example, according to the restriction of relevant system or relevant business, by an embodiment, change into another embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
In the following passage, with reference to accompanying drawing, with way of example, the utility model is more specifically described.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of aid illustration the utility model embodiment lucidly.
Please refer to Fig. 1 to Fig. 4, in the present embodiment, proposed a kind of top burning type hot blast stove combustor, described burner comprises: air distribution system, distribution system of gas, body of wall, vault 13 and the combustion chamber 14 being formed by body of wall and vault 13 encirclements.
Wherein, described air distribution system comprises that a plurality of air nozzles (12-1,12-2,12-3), air intake pipe 2, air distribute circuit 4 and air nozzle pipeline (6,8,10), described air distributes circuit 4 to be connected with air intake pipe 2, described air nozzle pipeline (6,8,10) distributes circuit 4 to be connected with air, described air nozzle (12-1,12-2,12-3) is connected respectively with air nozzle pipeline (6,8,10), as depicted in figs. 1 and 2, described air distributes circuit 4 to be positioned at described body of wall, and be around shape, as shown in Figure 4; ; air can be entered by air intake pipe 2; via air, distribute circuit 4 and air nozzle pipeline (6,8,10) to enter respectively in described air nozzle (12-1,12-2,12-3) again; by described air nozzle (12-1,12-2,12-3), sprayed to again the inside of described combustion chamber 14, to provide burning required air.
Wherein, described distribution system of gas comprises a plurality of gasburner (11-1,11-2,11-3), gas inlet pipeline 1, gas allocation circuit 3 and gasburner pipeline (5,7,9), described gas allocation circuit 3 is connected with gas inlet pipeline 1, described gasburner pipeline (5,7,9) is connected with gas allocation circuit 3, described gasburner (11-1,11-2,11-3) is connected respectively with gasburner pipeline (5,7,9), as depicted in figs. 1 and 2, described gas allocation circuit 3 is positioned at described body of wall, and be around shape, as shown in Figure 3; Same, coal gas can be entered by gas inlet pipeline 1, via gas allocation circuit 3 and gasburner pipeline (5,7,9), enter respectively in described gasburner (11-1,11-2,11-3) again, by described gasburner (11-1,11-2,11-3), sprayed to again the inside of described combustion chamber 14, to provide burning required coal gas.
Described air nozzle (12-1, 12-2) and gasburner (11-1, 11-2) be spaced and form a plurality of air-gasburner groups that are parallel to each other, in the present embodiment, described air-gasburner group is 2 rows, be respectively first row air-gasburner group and second row air-gasburner group, the level height of described first row air-gasburner group is higher than the level height of second row air-gasburner group, air nozzle (12-1) in described first row air-gasburner group and gasburner (11-1) are all towards second row air-gasburner group one side, and be the angle of 0～60 ° with sea line, it is for example 30 °, air nozzle (12-2) in described second row air-gasburner group and gasburner (11-2) be all towards first row air-gasburner group one side, and be the angle of 0～60 ° with sea line, for example, be 30 °, due to the level height of the described first row air-gasburner group level height higher than second row air-gasburner group, for the gas of first row air-gasburner group and the ejection of second row air-gasburner group can be mixed, therefore first row air-gasburner group is arranged down, second row air-gasburner group is arranged upward, thereby make the gas that both spray can reach towards same direction the object of mutual mixing.
In the present embodiment, adopt many air-discharging-gasburner groups can guarantee to mix fully between air and coal gas, and guarantee that flow field is stable, efficiency of combustion is improved.
Preferably, air nozzle (12-1,12-2) and gasburner (11-1,11-2) in first row air-gasburner group and second row air-gasburner group are all arranged symmetrically by rotary-cut shape, as shown in Figure 3 and Figure 4, thereby can make the air and the coal gas that spray into form cyclone, can better make both mix.
In the present embodiment, described air distribution system also comprises full air nozzle group, described full air nozzle group is comprised of a plurality of air nozzles (12-3), described distribution system of gas also comprises full gasburner group, described full gasburner group is comprised of a plurality of gasburner (11-3), described full air nozzle group and described full gasburner group are parallel to each other, please refer to Fig. 1 and Fig. 2, in the present embodiment, the level height of described gas inlet pipeline 1 is higher than the level height of described air intake pipe 2, the level height of described full gasburner group is higher than the level height of described full air nozzle group, and guarantee that described first row air-gasburner group and second row air-gasburner group are between described full gasburner group and full air nozzle group.
Wherein, the air nozzle (12-1,12-2) in the gasburner (11-1,11-2) in described full gasburner group and full air nozzle group is also arranged symmetrically according to rotary-cut shape.
It is to be noted, in other embodiment beyond the present embodiment, the level height of described gas inlet pipeline 1 can be lower than the level height of described air intake pipe 2, and the level height of described full gasburner group is also lower than the level height of described full air nozzle group, and concrete can decide according to different needs.
In the present embodiment, air nozzle (12-1,12-2) number in described first row air-gasburner group and second row air-gasburner group is 12, gasburner (11-1,11-2) number is also 12, yet in other embodiment beyond the present embodiment, the number of air nozzle (12-1,12-2) and gasburner (11-1,11-2) can be selected according to different demands, in this no limit.
In order to reduce space, described air distribution system and distribution system of gas are all positioned at body of wall; Described air nozzle (12-1,12-2,12-3) and gasburner (11-1,11-2,11-3) spurt air and coal gas to described combustion chamber 14.Air and coal gas, through intake ducting separately, enter distribution circuit, and then to enter burner internal space be in combustion chamber 14 for the nozzle pipe by separately and nozzle, the nozzle being evenly arranged because thering are many rows, can guarantee that air gas mixes efficiently, steady air current, sufficient combustion.
To sum up, in the top burning type hot blast stove combustor providing at the utility model embodiment, the top burning type hot blast stove combustor the utility model proposes comprises that many rows are by air nozzle and the spaced air-gasburner of gasburner group, can make the efficient fully mixing of air and coal gas, assurance gas flowfield is stable, thereby can improve efficiency of combustion, and its to have novel structure stable, implement the features such as easy, can meet the requirement of large blast furnace to the high wind-warm syndrome of top combustion stove.Described air nozzle and gasburner adopt rotary-cut shape to arrange, can guarantee that air and the coal gas of ejection mixes fully, have further improved the efficiency of burning.
Above are only preferred embodiment of the present utility model, the utility model is not played to any restriction.Any person of ordinary skill in the field; within not departing from the scope of the technical solution of the utility model; the technical scheme that the utility model is disclosed and technology contents are made any type of changes such as replacement or modification that are equal to; all belong to the content that does not depart from the technical solution of the utility model, within still belonging to protection domain of the present utility model.
Claims (12)
1. a top burning type hot blast stove combustor, it is characterized in that, described burner comprises: air distribution system, distribution system of gas, body of wall, vault and the combustion chamber being formed by body of wall and vault encirclement, wherein, described air distribution system comprises a plurality of air nozzles, described distribution system of gas comprises a plurality of gasburner, described air nozzle and gasburner are spaced and form a plurality of air-gasburner groups that are parallel to each other, described air distribution system and distribution system of gas are all positioned at body of wall, air and coal gas are spurted to combustion chamber by described air nozzle and gasburner respectively.
2. top burning type hot blast stove combustor as claimed in claim 1, it is characterized in that, described air distribution system comprises that air intake pipe, air distribute circuit and air nozzle pipeline, described air distributes circuit to be connected with air intake pipe, described air nozzle pipeline distributes circuit to be connected with air, and described air nozzle is connected with air nozzle pipeline.
3. top burning type hot blast stove combustor as claimed in claim 2, it is characterized in that, described distribution system of gas comprises gas inlet pipeline, gas allocation circuit and gasburner pipeline, described gas allocation circuit is connected with gas inlet pipeline, described gasburner pipeline is connected with gas allocation circuit, and described gasburner is connected with gasburner pipeline.
4. top burning type hot blast stove combustor as claimed in claim 3, it is characterized in that, described air distribution system also comprises full air nozzle group, described full air nozzle group is comprised of a plurality of air nozzles, described distribution system of gas also comprises full gasburner group, described full gasburner group is comprised of a plurality of gasburner, and described full air nozzle group and described full gasburner group are parallel to each other.
5. top burning type hot blast stove combustor as claimed in claim 4, is characterized in that, the level height of described gas inlet pipeline is higher than the level height of described air intake pipe.
6. top burning type hot blast stove combustor as claimed in claim 5, is characterized in that, the level height of described full gasburner group is higher than the level height of described full air nozzle group.
7. top burning type hot blast stove combustor as claimed in claim 4, is characterized in that, the level height of described gas inlet pipeline is lower than the level height of described air intake pipe.
8. top burning type hot blast stove combustor as claimed in claim 7, is characterized in that, the level height of described full gasburner group is lower than the level height of described full air nozzle group.
9. the top burning type hot blast stove combustor as described in claim 6 or 8, it is characterized in that, described air-gasburner group is 2 rows, be respectively first row air-gasburner group and second row air-gasburner group, described first row air-gasburner group and second row air-gasburner group are between described full gasburner group and full air nozzle group, and the level height of described first row air-gasburner group is higher than the level height of second row air-gasburner group.
10. top burning type hot blast stove combustor as claimed in claim 9, is characterized in that, the air nozzle in described first row air-gasburner group and gasburner be all towards second row air-gasburner group one side, and is the angle of 0～60 ° with sea line.
11. top burning type hot blast stove combustors as claimed in claim 9, is characterized in that, the air nozzle in described second row air-gasburner group and gasburner be all towards first row air-gasburner group one side, and are the angle of 0～60 ° with sea line.
12. top burning type hot blast stove combustors as claimed in claim 9, it is characterized in that, air nozzle, gasburner in described full air nozzle, full gasburner group, first row air-gasburner group and second row air-gasburner group are all arranged symmetrically by rotary-cut shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238106.0U CN203807501U (en) | 2014-05-09 | 2014-05-09 | Combustor of top-combustion type hot-blast stove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420238106.0U CN203807501U (en) | 2014-05-09 | 2014-05-09 | Combustor of top-combustion type hot-blast stove |
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| CN203807501U true CN203807501U (en) | 2014-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180008814A (en) * | 2017-08-16 | 2018-01-24 | 엠씨씨 캐피탈 엔지니어링 앤드 리서치 인코포레이션 리미티드 | A top-burning hot blast furnace burner |
| WO2018082001A1 (en) * | 2016-11-04 | 2018-05-11 | 郑州安耐克实业有限公司 | Novel top-combustion hot blast stove |
-
2014
- 2014-05-09 CN CN201420238106.0U patent/CN203807501U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018082001A1 (en) * | 2016-11-04 | 2018-05-11 | 郑州安耐克实业有限公司 | Novel top-combustion hot blast stove |
| KR20180008814A (en) * | 2017-08-16 | 2018-01-24 | 엠씨씨 캐피탈 엔지니어링 앤드 리서치 인코포레이션 리미티드 | A top-burning hot blast furnace burner |
| KR102089011B1 (en) | 2017-08-16 | 2020-03-13 | 엠씨씨 캐피탈 엔지니어링 앤드 리서치 인코포레이션 리미티드 | A top-burning hot blast furnace burner |
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