CN206418153U - Burner and hot-blast stove - Google Patents
Burner and hot-blast stove Download PDFInfo
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- CN206418153U CN206418153U CN201720053229.0U CN201720053229U CN206418153U CN 206418153 U CN206418153 U CN 206418153U CN 201720053229 U CN201720053229 U CN 201720053229U CN 206418153 U CN206418153 U CN 206418153U
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- combustion gas
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- burner
- blast tube
- cyclone
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Abstract
The utility model is related to the technical field of Ferrous Metallurgy, more particularly, to a kind of burner and hot-blast stove, the burner, including：Air duct and blast tube are provided with housing and the first cyclone, housing；Blast tube is arranged on the center of housing, and air duct is arranged on blast tube surrounding, and blast tube is with air duct in both nozzle formation air and the mixed zone of combustion gas；Blast tube is provided with the first cyclone, and the first cyclone is close to the combustion gas nozzle of blast tube, for making combustion gas enter mixed zone in the way of eddy flow.The utility model solves air in burner and can not be sufficiently mixed in mixed zone with combustion gas, prevents it from clean-burning technical problem.
Description
Technical field
The utility model is related to the technical field of Ferrous Metallurgy, more particularly, to a kind of burner and hot-blast stove.
Background technology
The effect of hot-blast stove is to provide hot blast to metallurgy high furnace.Its operation principle is produced by burner combustion coal gas
Raw high-temperature flue gas, the heat storage in chamber of hot-blast stove is heated, and is then made cold wind by heat storage and is carried out heat with heat storage
Exchange and become hot blast.Wherein, burner is the crucial setting of hot-blast stove, and the quality of its performance directly affects gas-fired
It is whether abundant.
At present, traditional pebble stove burner is direct jet pattern burner, as shown in figure 1, combustion gas is from combustion gas
Spout 32 flows out, and converges with the air that is flowed out from air port 22 in mixed zone, wherein, combustion gas mixed zone diffusion zone very
It is small, make it slow with air mixing velocity, also, in mixed zone it is possible that the dead post of air-flow, prevent combustion gas at this from sky
Gas catalytic combustion, the gas for making combustion gas be difficult after fully burning, and burning there may be substantial amounts of carbon monoxide and be discharged, dirty
Environment is contaminated, is unfavorable for environmental protection and energy saving.
Utility model content
A purpose of the present utility model is to provide burner, can not filled with combustion gas with alleviating air in existing burner
Divide mixing, prevent it from clean-burning technical problem.
The burner that the utility model is provided, including：Air duct is provided with housing and the first cyclone, the housing
And blast tube；
The blast tube is arranged on the center of the housing, and the air duct is arranged on the blast tube surrounding,
The blast tube is with the air duct in both nozzle formation air and the mixed zone of combustion gas；
The blast tube is provided with the first cyclone, and first cyclone is close to the gas injection of the blast tube
At mouthful, for making combustion gas enter mixed zone in the way of eddy flow.
Further, multiple air ports of the air duct, which are circularized, is evenly distributed on the first outer wall, and described
One outer wall is connected with the first inwall of the blast tube in a ring, and first outer wall and first inwall are into obtuse angle,
Collect air and combustion gas；
Further, first outer wall and first inwall are into 145 ° of obtuse angles.
Further, first cyclone is ternary streaming vane cyclone.
Further, matcoveredn is set at first outer wall, and the protective layer is refractory material.
Further, the refractory material is aluminum oxide.
Further, the air inlet of the air duct is arranged at the upper end of the housing.
Further, in the air duct and the blast tube surrounding is provided with the second cyclone, and institute
The second cyclone is stated to be arranged between the air inlet and the air port.
Compared with prior art, the utility model has the advantage that：
The burner that the utility model is provided, by being provided with air duct and blast tube in housing, carries out air
With the input of combustion gas.Specific structure is that blast tube is arranged on the center of housing, and air duct is arranged on blast tube four
In week, it can so enable air to surround fuel gas buring, combustion gas is sufficiently burnt, blast tube is provided with the first rotation
Device is flowed, and the first cyclone makes combustion gas enter mixed zone in the way of eddy flow close to the combustion gas nozzle of blast tube.
In combustion gas by eddy flow by way of enter mixed zone, make combustion gas not only have parallel flow burner enter mixing
The axial component velocity and radial velocity component in area are outside one's consideration, also one tangential-velocity component, and the radial velocity component near combustion gas spout
It is more much bigger than parallel flow burner, combustion gas is formed in mixed zone and be vortexed, be conducive to the diffusion of combustion gas and mixed with air
Close, contact, so that fuel gas buring is more abundant, and then reduce the consumption of combustion gas, improve the elevated speed of temperature, save
About the time, specifically, comparing the combustion gas that single flow gas apparatus saves more than 6%, save the cost of combustion gas.In addition, making
Combustion gas is sufficiently mixed burning with air, reduces the generation of carbon monoxide, can reduce toxic gas is discharged into external environment
In, reduce the pollution of environment.
In addition, in the utility model, the first cyclone makes combustion gas form eddy flow can not only mix with the air of surrounding
Close, and the flow velocity of the combustion gas in blast tube can also be accelerated to a certain degree, can timely be fed in mixed zone, make combustion
That burns is not only more abundant, also more stablizes.
Another purpose of the present utility model is to provide a kind of hot-blast stove, empty to alleviate the burner on existing hot-blast stove
Gas can not be sufficiently mixed with combustion gas, prevent it from clean-burning technical problem.
The hot-blast stove that the utility model is provided, including：Body of heater and burner described above；The body of heater and the burning
Device is fixedly connected.
Further, the body of heater and the burner junction are provided with alumina fiber layer.
Compared with prior art, the utility model has the advantage that：
The hot-blast stove that the utility model is provided, burner is arranged on body of heater.It is sufficient by the combustion gas in burner
Burning, accelerates the elevated speed of furnace interior structure temperature, wherein, the structure and beneficial effect of burner are above-mentioned to have done
Detailed elaboration, is not discussed here.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the burner of prior art；
Fig. 2 is a kind of structural representation for burner that the utility model embodiment one is provided；
Fig. 3 for Fig. 2 burners provided front view；
Fig. 4 is the structural representation for another burner that the present embodiment one is provided；
Fig. 5 for the A-A of Fig. 4 burners provided sectional view.
Icon：10- housings；20- air ducts；30- blast tubes；The outer walls of 21- first；22- air ports；
23- air inlets；The cyclones of 24- second；The inwalls of 31- first；32- combustion gas spouts；The cyclones of 33- first.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
As shown in Figures 2 and 3, a kind of burner that the present embodiment is provided, including：The cyclone 33 of housing 10 and first, shell
Air duct 20 and blast tube 30 are provided with body 10；Blast tube 30 is arranged on the center of housing 10, and air duct 20 is set
Put in the surrounding of blast tube 30, blast tube 30 is with air duct 20 in both nozzle formation air and the mixing of combustion gas
Area；Blast tube 30 is provided with the first cyclone 33, and the first cyclone 33 is at the combustion gas spout 32 of blast tube 30, uses
Enter mixed zone in the way of eddy flow in making combustion gas.
The burner that the present embodiment is provided, by being provided with air duct 20 and blast tube 30 in housing 10, is carried out
Air and the input of combustion gas.Specific structure is that blast tube 30 is arranged on the center of housing 10, and air duct 20 is arranged on combustion
The surrounding of gas passage 30, can so enable air to surround fuel gas buring, combustion gas is sufficiently burnt, in blast tube 30
The first cyclone 33 is provided with, and the first cyclone 33 makes combustion gas with eddy flow at the combustion gas spout 32 of blast tube 30
Mode enters mixed zone.
In combustion gas by eddy flow by way of enter mixed zone, make combustion gas not only have parallel flow burner enter mixing
The axial component velocity and radial velocity component in area are outside one's consideration, also one tangential-velocity component, and the radial velocity component near combustion gas spout 32
Degree is more much bigger than parallel flow burner, combustion gas is formed in mixed zone and is vortexed, and is conducive to the diffusion of combustion gas and mixed with air
Close, contact, so that fuel gas buring is more abundant, and then reduce the consumption of combustion gas, improve the elevated speed of temperature, save
About time, specifically, comparing single flow gas apparatus saves more than 6% combustion gas, while also saving cost.In addition, making
Combustion gas is sufficiently mixed burning with air, reduces the generation of carbon monoxide, can reduce toxic gas is discharged into external environment
In, reduce the pollution of environment.
In addition, in the present embodiment, the first cyclone 33 makes combustion gas form eddy flow can not only mix with the air of surrounding
Close, and the flow velocity of the combustion gas in blast tube 30 can also be accelerated to a certain degree, can timely be fed in mixed zone, make
What is burnt is not only more abundant, also more stablizes.
Explanation is needed exist for, as shown in Fig. 2 30 points of blast tube is two parts：At combustion gas spout 32 is
At blast tube front end, remote combustion gas spout 32 is blast tube rear end.The cross-sectional area of blast tube rear end is kept substantially
Constant, the diameter of blast tube front end is gradually reduced along the direction of fuel gas flow, and such structure can strengthen the flowing of combustion gas
Speed, increases flowing velocity of the combustion gas in mixed zone, adds the speed of burning, improve efficiency.
Furthermore, it is contemplated that the content of oxygen is relatively low in the air of input, and containing substantial amounts of nitrogen dioxide, therefore, can
To be provided into air duct 20 containing the larger combustion-supporting gas of oxygen proportion, contribute to the burning of combustion gas.
In addition, in the present embodiment, in order to enable combustion gas fully to be burnt with air, the cross section of blast tube 30
The ratio of area and the cross-sectional area of air duct 20 should be set according to combustion gas and air use ratio, using combustion gas species not
Together, its ratio setting is different, is mainly determined according to the content of carbon.
In the present embodiment, as shown in Fig. 2 the first cyclone 33 is the rotation using wind, combustion gas is spirally sent out,
At a relatively high induction ratio is produced, combustion gas is mixed rapidly with the air of mixed zone.Specifically, the air-out groove of the first cyclone 33 is in
Guiding of the combustion gas through air-out groove at combustion gas spout 32 in arranged radially, blast tube 30, forms jet tangentially, whole
The combustion gas of individual mixed zone produces the vortex of a such as typhoon shape in the presence of multiple jetses.The central area of vortex forms one
Individual negative pressuren zone, induce the air of mixed zone promptly with combustion gas mixing, whole fuel gas flow in stable horizontal proliferation fluidised form, from
And combustion gas and air are fully contacted, are mixed, promote it sufficiently to burn.
Wherein, the species of the first cyclone 33 has a variety of, for example, blade type or volute type, in the present embodiment, are used
Blade type, specifically, the first cyclone 33 is ternary streaming vane cyclone, wherein, it includes three blades and driving electricity
Machine, three blades are uniformly arranged on the output shaft of motor, are rotated by motor, and blade is rotated, wherein, ternary
The power that streaming vane cyclone needs is small, can be acted under relatively low gaseous-pressure.
In the present embodiment, as shown in Figures 2 and 3, multiple air ports 22 of air duct 20, which are circularized, is uniformly distributed
On the first outer wall 21, the first outer wall 21 is connected with the first inwall 31 of blast tube 30 in a ring, and the first outer wall 21 and
One inwall 31 collects air and combustion gas in addition, air port 22 answers intensive be arranged on the first outer wall 21 into obtuse angle.So
By making air port 22 is uniformly intensive to be distributed on the first outer wall 21, combustion gas surrounding in mixed zone can be made to have air,
Combustion gas can sufficiently burn, and combustion even is stable, reduce the waste of combustion gas.
Wherein, the angle that the first outer wall 21 is formed with the first inwall 31 has a variety of, that is, is flowed at air port 22
Air and combustion gas spout 32 flowing combustion gas angle have a variety of, in order to improve air and fuel gas buring rate, the present embodiment, first
The inwall 31 of outer wall 21 and first is shaped as 145 ° of obtuse angles.It is, the air flowed at air port 22 flows with combustion gas spout 32
The angle of dynamic combustion gas extension is 35 °, by setting this angle, air can be made uniformly to be mixed in mixed zone with combustion gas
Close.
Due in the burner, air discharges substantial amounts of heat with fuel gas buring, makes housing 10 around mixed zone
Temperature is raised, and is caused the damage degree at certain damage, especially the first outer wall 21 more serious to housing 10, is deformed it,
Therefore, in order to reduce the damage to the first outer wall 21, extend the service life of burner, protection is provided with the first outer wall 21
Layer, protective layer is refractory material.
Wherein, refractory material refers to that refractoriness is higher than 1580 DEG C of inorganic non-metallic material.Refractory material has a variety of, example
Such as, high-temperature oxide material, such as aluminum oxide, lanthana, beryllium oxide, calcium oxide, zirconium oxide；High-temperature composite material, such as metal
Ceramics, high temperature inorganic coating and fiber reinforced ceramic, also include other refractory materials certainly.In the present embodiment, fire proofed wood
Expect for aluminum oxide, it is a kind of compound of high rigidity, fusing point is 2054 DEG C, and boiling point is 2980 DEG C, and chemical property is stable, and
And be insulating materials, and the cost of manufacture of aluminum oxide is comparatively relatively low, and can be with cost-effective.
In addition, in the present embodiment, the position of the air inlet 23 of air duct 20 has a variety of, for example, shell can be arranged on
The top of body 10, with combustion gas approach axis identical position or the lower section of housing 10.In the present embodiment, as shown in Fig. 2 in sky
The air inlet 23 of gas passage 20 is arranged at the upper end of housing 10.
But, the upper end that the air inlet 23 of air duct 20 is arranged at housing 10 may make the air of upper end air port 22
Amount is far longer than the air capacity of lower end, so that the contact and burning in mixed zone combustion gas with air are influenceed, in order that air duct
Air in 20 can uniformly be distributed in the surrounding of blast tube 30, so that the basic phase of air capacity in each air port 22
Together, as shown in Figure 4 and Figure 5, in the air duct 20 and the surrounding of blast tube 30 is provided with the second cyclone 24, and second
Cyclone 24 is arranged between air inlet 23 and air port 22.By setting the second cyclone 24, make air from the second eddy flow
The air-out groove outflow of device 24, changes the direction of the air stream in air duct 20, enables air to be dispersed in surrounding, so as to be
The substantially homogeneous distribution of air of the surrounding of blast tube 30, and then make the air capacity of mixed zone surrounding essentially identical, make air with
Combustion gas can uniform sufficient burning, enhance the utilization rate of combustion gas, so as to reduce the consumption of combustion gas, and reduced
The discharge capacity of poisonous gas, reduces the pollution to environment.
Embodiment two
The present embodiment provides a kind of hot-blast stove, including：Body of heater and above-mentioned burner；Body of heater is fixedly connected with burner.
Wherein, body of heater has a variety of with burner connected mode, for example, flange connection or welding, in the present embodiment, stove
Body is connected with burner using flange, such to facilitate the maintenance and dismounting of burner and body of heater.
The hot-blast stove that the present embodiment is provided, burner is arranged on body of heater.Sufficiently fired by the combustion gas in burner
Burn, accelerate the elevated speed of furnace interior structure temperature, wherein, the structure and beneficial effect of burner are above-mentioned to have done
Detailed elaboration, is not discussed here.
In order to extend the service life that hot-blast stove is overall, in the present embodiment, body of heater and burner junction set aerobic
Change aluminum fiber layer.Wherein, alumina fibre main component is the docrystalline inorfil of aluminum oxide, is that a kind of Ultralight high temperature is exhausted
Hot material, because its density is small.Thermal insulation is good, thermal capacity is small, can not only mitigate body of heater quality, and can improve temperature control essence
Degree, energy-saving effect is notable.
In addition, in the present embodiment, hot-blast stove also includes heat accumulation room, makes the gas flow heat accumulation room burnt in burner,
The heat of burner is stored, wherein, heat storage is stacked in heat accumulation room, and heat storage typically uses the efficient grid in 19 apertures
Brick, because the work Area comparison of 19 aperture grid bricks is small, and per unit heating surface product is larger, therefore, is keeping checker brick
Under the same conditions, total heating surface increases total amount.The heating surface increase of hot-blast stove will be brought greatly to high wind-warm syndrome is obtained
Benefit, improve the utilization ratio of hot-blast stove, reduce the consumption of combustion gas.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of burner, it is characterised in that including：Be provided with housing and the first cyclone, the housing air duct and
Blast tube；
The blast tube is arranged on the center of the housing, and the air duct is arranged on the blast tube surrounding, described
Blast tube is with the air duct in both nozzle formation air and the mixed zone of combustion gas；
The blast tube is provided with the first cyclone, and first cyclone is close to the combustion gas spout of the blast tube
Place, for making combustion gas enter mixed zone in the way of eddy flow.
2. burner according to claim 1, it is characterised in that multiple air ports of the air duct are circularized
Even to be distributed on the first outer wall, first outer wall is connected with the first inwall of the blast tube in a ring, and described first
Outer wall, into obtuse angle, collects air and combustion gas with first inwall.
3. burner according to claim 2, it is characterised in that first outer wall is blunt into 145 ° with first inwall
Angle.
4. burner according to claim 1, it is characterised in that first cyclone is ternary streaming vane eddy flow
Device.
5. burner according to claim 2, it is characterised in that matcoveredn, the guarantor are set at first outer wall
Sheath is refractory material.
6. burner according to claim 5, it is characterised in that the refractory material is aluminum oxide.
7. the burner according to claim any one of 1-6, it is characterised in that the air inlet of the air duct is set
In the upper end of the housing.
8. burner according to claim 7, it is characterised in that in the air duct and around the blast tube
Surrounding is provided with the second cyclone, and second cyclone is arranged between the air inlet and the air port.
9. a kind of hot-blast stove, it is characterised in that including：Burner described in body of heater and claim any one of 1-8；The stove
Body is fixedly connected with the burner.
10. hot-blast stove according to claim 9, it is characterised in that the body of heater and the burner junction are provided with
Alumina fiber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720053229.0U CN206418153U (en) | 2017-01-17 | 2017-01-17 | Burner and hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720053229.0U CN206418153U (en) | 2017-01-17 | 2017-01-17 | Burner and hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206418153U true CN206418153U (en) | 2017-08-18 |
Family
ID=59572065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720053229.0U Active CN206418153U (en) | 2017-01-17 | 2017-01-17 | Burner and hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206418153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317510A (en) * | 2018-03-29 | 2018-07-24 | 西安交通大学 | A kind of low NO of remote burnout degree two level eddy flow wide regulating ratioxBurner |
-
2017
- 2017-01-17 CN CN201720053229.0U patent/CN206418153U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317510A (en) * | 2018-03-29 | 2018-07-24 | 西安交通大学 | A kind of low NO of remote burnout degree two level eddy flow wide regulating ratioxBurner |
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