CN204944188U - A kind of diclinic belt ignition furnace - Google Patents
A kind of diclinic belt ignition furnace Download PDFInfo
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- CN204944188U CN204944188U CN201520662651.7U CN201520662651U CN204944188U CN 204944188 U CN204944188 U CN 204944188U CN 201520662651 U CN201520662651 U CN 201520662651U CN 204944188 U CN204944188 U CN 204944188U
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Abstract
The utility model relates to metallurgical technology field, particularly relate to a kind of diclinic belt ignition furnace, comprise furnace shell, liner and burner, described liner is arch, and below the furnace roof being arranged on furnace shell, described liner has the chassis through described furnace shell, the furnace roof of described furnace shell is provided with to be arranged along chassis traffic direction and to pass at least two row's burners of described furnace shell, described at least two row's burners are centrosymmetric setting, be lining with the position corresponding with described burner in described and leave through hole, when described burner is lighted, flame focuses on through described through hole and to the mixing mineral aggregate surface on chassis and forms high temperate zone.The technical program preferably can provide according to characteristics such as iron ore kind, blending ore characteristic, cloth situations the ignition holding furnace forming saddle hyperboloid temperature field, with reach charge level igniting evenly, quality is high, save energy consumption, the effect in extension device service life.
Description
Technical field
The utility model relates to metallurgical technology field, particularly relates to a kind of sintering ignition heat preservation furnace and sintering machine.
Background technology
At present, in prior art, iron ore sintering makes blending ore after referring to and iron ore, fuel, solvent etc. being mixed according to a certain percentage, and segregation distribution is on pallet, and through igniting, SINTERING PRODUCTION sintering deposit, sintering deposit is the primary raw material of blast furnace ironmaking.
Ignition holding furnace is the visual plant in iron ore sintering technique, the heat enough by its supply Sinter Blending Process top layer, make the solid fuel ignition in Sinter Blending Process, make dry under the high-temperature flue gas effect of blending ore top layer in ignition furnace, decarburization and sintering simultaneously, and by extractor fan, sintering process is carried out smoothly from top to bottom.Whether the quality of ignition holding furnace ignition results directly affects sintering process and can carry out smoothly and the quality of output sintering deposit.
At present, Authorization Notice No. is that the Chinese patent of CN2376611Y discloses a kind of ignition holding furnace, furnace roof is provided with the burner of two row perpendicular to furnace roof longitudinal centre line.Similar device, as shown in Figure 1, this double burner 1 be evenly arranged is in conjunction with fixed flat-top furnace shell 2, form the high-temperature region of continuous uniform, each nozzle structure size of this traditional ignition holding furnace is all identical, the furnace roof of furnace shell 2 is the flat-top of level altitude, liner 3 is also flat-top, the deviation produced when cannot adapt to blending ore cloth in chassis, comprise compound grade, highly uneven, form charge level characteristic different, and ignition furnace has factors such as leaking out between trolley breast plate, the actual blending ore cloth surface ignition results caused is uneven.For this reason, the many employings of field device operation person evenly improve the way for calorific intensity, make that charge level ignition results is not good to be improved, but this mode makes the ignition energy consumption of other most of charge level increase.And every platform ignition furnace has several burner, adopt manual adjustment mode operational ton huge, the stability that impact is produced.In addition, the cloth pattern that what in prior art, some sintering machine distributing was taked is higher than breast board height, can form trapezoidal charge level at chassis charge level, now fix even distribution heating that furnace roof formed often in the middle of charge level superfusion, and edge igniting is insufficient, there is yellow material phenomenon.
For the technical disadvantages of existing ignition holding furnace, a kind of novel diclinic belt ignition furnace need be provided.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of diclinic belt ignition furnace and causes to solve existing ignition holding furnace because of blending ore cloth deviation and ore characteristic the problem that ignition results is not good, the sintering deposit quality of production is low.
(2) technical scheme
The utility model provides a kind of diclinic belt ignition furnace on the one hand, comprise furnace shell, liner and burner, described liner is arch, and below the furnace roof being arranged on furnace shell, described liner has the chassis through described furnace shell, the furnace roof of described furnace shell is provided with to be arranged along chassis traffic direction and to pass at least two row's burners of described furnace shell, described at least two row's burners are centrosymmetric setting, be lining with the position corresponding with described burner in described and leave through hole, when described burner is lighted, flame focuses on through described through hole and to the mixing mineral aggregate surface on chassis and forms high temperate zone.
Wherein, the heat capacity of each row's burner is different, and crossing to make each row's burner flame forms the wavy curve height temperate zone with charge level outline.
Wherein, often arrange burner and arrange along described chassis width, and wherein each burner is increased gradually by center to both sides heat capacity, to become saddle hyperbola temperature field at freeze profile.
Wherein, described furnace roof is equipped with the lowering or hoisting gear for being elevated liner.
Wherein, each row's burner is staggered.
Wherein, described burner tilts to arrange at described furnace roof, and is the angle of 60-80 ° with described furnace roof horizontal plane.
Wherein, the distance between described each row's burner is 300-1000mm.
Wherein, described liner adjustable-height is 50-200mm.
Wherein, in described furnace shell, be also provided with the incubation cavity for keeping blending ore material temperature degree along chassis traffic direction.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the diclinic belt ignition furnace that the utility model provides, at least two row's burners are arranged along chassis traffic direction at furnace roof, arch liner is set below furnace roof, adapt with the structure of arch liner, at least two row's burners are centrosymmetric setting, thus the flame of burner ejection focuses on the high temperate zone of formation on mixing mineral aggregate surface, often arrange burner heat capacity different simultaneously, wavy curve height temperate zone can be formed along chassis traffic direction, adapt with mixing mineral aggregate surface profile, the uniformity of the charge level igniting of blending ore can be improved, reduce igniting hear rate.
Specifically, along multiple burners that chassis width is arranged, center to both sides burner heat capacity increases gradually, form the saddle curve height temperate zone along chassis width, on the one hand, the phenomenon that edge igniting is not good, occur yellow material can be eliminated, on the other hand, the problem of the excessive generation charge level superfusion of middle charge level heat supply can be prevented, can ignition quality be improved, igniting hear rate can be reduced again; Arch furnace roof makes the high temperature zone temperature focused on charge level improve, and can reduce the ignition time that in compound, solid fuel needs, thus reduces igniting hear rate; Liftable arch furnace roof for regulating furnace height and the length of flame, thus adapts to the different cloth height of blending ore on chassis, meets the individual demand of actual production.
Accompanying drawing explanation
Fig. 1 is the ignition holding furnace cross-sectional view of prior art.
Fig. 2 is the utility model embodiment sintering ignition heat preservation furnace cross-sectional view.
Fig. 3 is that the utility model embodiment sintering ignition heat preservation furnace is along chassis width cross-sectional view.
In figure, 1: burner; 2: furnace shell; 3: liner; 4: fire hole; 5: peep-hole; 6: pressure tap; 7: thermometer hole; 8: chassis; 9: blending ore; 10: road wheel; 11: lowering or hoisting gear; 12: joist; 13: incubation cavity.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
In describing the invention, it should be noted that, term " on ", D score, "front", "rear", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is equipped with ", " erection ", " being provided with ", " setting ", " layout ", " connection ", should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two device inside.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.In addition, in description of the present utility model, except as otherwise noted, the implication of " at least two rows " is two or more rows.
As shown in Figures 2 and 3, the diclinic belt ignition furnace that the utility model provides, comprise furnace shell 2, liner 3 and burner 1, described furnace shell 2 has arch liner 3, described liner 3 has the chassis 8 through described furnace shell 2, the furnace roof of described furnace shell 8 is provided with to be arranged along chassis 8 traffic direction and to pass three row's burners 1 of described furnace shell 2, described three row's burners 1 are centrosymmetric setting, through hole is left in position corresponding with described burner 1 on described liner 3, and when described burner 1 is lighted, flame focuses on through described through hole and to mixing mineral aggregate 9 surface on chassis 8 and forms high temperate zone.Described three row's burners, can be preferably more than two rows and two rows.Arch liner 3, is preferably, arch staged liner, the trapezoidal charge level coordinating the flat charge level on chassis to be formed, and ensure that better for hot focus.In conjunction with the wavy curve height temperate zone that this burner arrangement is formed, the technical program is reached make that charge level ignition results is better, quality is higher, more save the object of energy consumption.As shown in Figure 2, the direction of arrow represents chassis traffic direction, wherein, chassis traffic direction and chassis width perpendicular; Horizontal line on arrow represents blending ore charge level position.
Furnace shell 2 in above-described embodiment is made as the case may be, is installed on sintering machine bottom furnace shell 2 by arranging road wheel 10.Liner is made up of refractory material, is preferably the non-caked refractory material of high-quality, realizes the object extending ignition holding furnace service life, the service life of ignition holding furnace and sintering machine overhaul life are matched.Preferably, the inside sidewalls of furnace shell 2 is installed with joist 12, this joist 12 supports liner.
Preferably, the heat capacity of described each row's burner 1 is different, and crossing to make described burner flame forms the wavy curve height temperate zone with charge level outline.Often arrange total heat capacity of burner according to the featured configuration of iron ore kind and blending ore cloth, thus adapt to the fluctuation of blending ore moisture content, the fluctuation of solid fuel content, the different fluctuation of charge level height, to reach uniform charge level ignition results.
Preferably, each row's burner 1 is arranged along described chassis 8 width, and described in center to both sides, the heat capacity of burner 1 increases gradually, becomes wavy curve height temperate zone at freeze profile.Arrange according to chassis 8 width and often arrange the number of burner 1 and the arrangement of each burner 1 heat capacity, can in the wavy curve height temperate zone of freeze profile one-tenth along chassis 8 width, guarantee edge ignition quality, solve the not good problem of edge igniting caused owing to leaking out between trolley breast plate and ignition furnace.In conjunction with the arrangement form that each row's burner 1 heat capacity is different, saddle hyperbola distribution field is become at freeze profile, achieve the technical process that top layer blending ore completes rapidly drying, burning, sintering in ignition holding furnace, thus adapt to the fluctuation of blending ore moisture content, the fluctuation of solid fuel content, the different fluctuation of charge level height, to reach uniform charge level ignition results.
Preferably, described furnace roof is equipped with the lowering or hoisting gear 11 for being elevated liner 3, liner height that can be suitable according to featured configuration such as iron ore kind, blending ore characteristic, cloth height, to form the wavy curve height temperate zone of blending ore cloth surface profile preferably, ignition holding furnace is reached, and charge level igniting is even, quality is high, save the effect of energy consumption.The inner side peak of liftable arch liner 3, to the furnace height of blending ore cloth surface, is preferably 280 ~ 700mm; The adjustable-height of liftable arch liner 3 is preferably 50 ~ 200mm.
Preferably, described each row's burner 1 is staggered.Preferably, described burner 1 tilts to arrange at described furnace roof, and is 60-80 ° with the angle of described furnace roof horizontal plane.Each row's burner flame is crossed and forms the wavy curve height temperate zone with charge level outline, ensure better for hot focus, to reach better ignition results.
The spacing can determining between each row's burner 1 according to chassis 8 machine speed, is preferably 300 ~ 1000mm, makes to form the wavy curve height temperate zone of more mating with charge level profile along its length, ensures charge level ignition quality.
Preferably, in described furnace shell, be also provided with the incubation cavity 13 for keeping blending ore material temperature degree along chassis 8 traffic direction.
Ignition holding furnace is lighted a fire to the blending ore 9 on chassis 8 by burner 1 combustion fuel.Preferably, ignition holding furnace is also provided with fire hole 4, peep-hole 5, pressure tap 6, thermometer hole 7 etc., to realize better combustion efficiency and mode of operation more easily.
Preferably, the suitable temperature of the technical program burner hearth igniting is 1150 ± 50 DEG C, and the appropriate time of burner hearth igniting is 1-2min, the unfavourable pressure of burner hearth igniting is-10-10Pa, and coefficient of excess air is 1.15-1.3, ensures the oxygen content of burner 1 flue gas.This burner 1 has flame burner nozzle, coordinates Liftable type furnace roof 4, make peak flame temperature point act on charge level.
The diclinic belt ignition furnace of the present embodiment designs for iron ore sintering technique, and certainly, the utility model also goes for the industrial furnace of other and sintering ignition furnace resemble process, can realize as long as carry out corresponding structural adjustment.
In sum, the technical program can be applicable to iron ore sintering technique very well, can solve the not good problem of edge igniting caused owing to leaking out between trolley breast plate and ignition furnace; Can solve due to cloth deviation, comprise compound grade, highly uneven, cause charge level to light a fire not good problem; Focusing effect due to arcuation liner improves the peak value of high temperate zone wave-like temperature curve, improves ignition results solid-fuelled in blending ore, thus can reduce igniting hear rate.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (9)
1. a diclinic belt ignition furnace, it is characterized in that: comprise furnace shell, liner and burner, described liner is arch, and below the furnace roof being arranged on furnace shell, described liner has the chassis through described furnace shell, the furnace roof of described furnace shell is provided with to be arranged along chassis traffic direction and to pass at least two row's burners of described furnace shell, described at least two row's burners are centrosymmetric setting, be lining with the position corresponding with described burner in described and leave through hole, when described burner is lighted, flame focuses on through described through hole and to the mixing mineral aggregate surface on chassis and forms high temperate zone.
2. diclinic belt ignition furnace according to claim 1, is characterized in that: the heat capacity of each row's burner is different, and crossing to make each row's burner flame forms the wavy curve height temperate zone with charge level outline.
3. diclinic belt ignition furnace according to claim 1, is characterized in that: often arrange burner and arrange along described chassis width, and wherein each burner is increased gradually by center to both sides heat capacity, to become saddle hyperbola temperature field at freeze profile.
4. diclinic belt ignition furnace according to claim 1, is characterized in that: described furnace roof is equipped with the lowering or hoisting gear for being elevated liner.
5. diclinic belt ignition furnace according to claim 1 and 2, is characterized in that: each row's burner is staggered.
6. the diclinic belt ignition furnace according to any one of claim 1-4, is characterized in that: described burner tilts to arrange at described furnace roof, and is the angle of 60-80 ° with described furnace roof horizontal plane.
7. the diclinic belt ignition furnace according to any one of claim 1-4, is characterized in that: the distance between each row's burner is 300-1000mm.
8. diclinic belt ignition furnace according to claim 4, is characterized in that: described liner adjustable-height is 50-200mm.
9. diclinic belt ignition furnace according to claim 1, is characterized in that: in described furnace shell, is also provided with the incubation cavity for keeping blending ore material temperature degree along chassis traffic direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662651.7U CN204944188U (en) | 2015-08-28 | 2015-08-28 | A kind of diclinic belt ignition furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662651.7U CN204944188U (en) | 2015-08-28 | 2015-08-28 | A kind of diclinic belt ignition furnace |
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| CN204944188U true CN204944188U (en) | 2016-01-06 |
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| CN201520662651.7U Active CN204944188U (en) | 2015-08-28 | 2015-08-28 | A kind of diclinic belt ignition furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490297A (en) * | 2017-07-26 | 2017-12-19 | 梁善良 | Kiln roof construction and kiln |
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2015
- 2015-08-28 CN CN201520662651.7U patent/CN204944188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490297A (en) * | 2017-07-26 | 2017-12-19 | 梁善良 | Kiln roof construction and kiln |
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