CN203432280U - Oxygen-enriched local oxygenated jet flow auxiliary combustion energy-saving emission reduction device for aluminum-melting reverberatory furnace - Google Patents
Oxygen-enriched local oxygenated jet flow auxiliary combustion energy-saving emission reduction device for aluminum-melting reverberatory furnace Download PDFInfo
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- CN203432280U CN203432280U CN201320543998.0U CN201320543998U CN203432280U CN 203432280 U CN203432280 U CN 203432280U CN 201320543998 U CN201320543998 U CN 201320543998U CN 203432280 U CN203432280 U CN 203432280U
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- burner
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- oxygen
- spray gun
- fire door
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Abstract
The utility model relates to an oxygen-enriched local oxygenated jet flow auxiliary combustion energy-saving emission reduction device for an aluminum-melting reverberatory furnace. The device comprises a plurality of sets of oxygen-enriched spray guns mounted on the lower semicircle outside a combustor, and an oxygen-enriched co-combustion spray gun mounted in a hole of a fuel spray gun of the combustor. The device is characterized in that: the plurality of oxygen-enriched spray guns are evenly mounted on the semi-circumference of the lower semicircle outside the combustor, and the circle center of the semi-circumference of the lower semicircle is the same as the circle center of the combustor; with regards to a reverberatory furnace comprising two combustors, the radius R right of a circumference on which a plurality of right side oxygen-enriched spray guns are positioned on the lower side of a right side combustor which is close to a furnace door is 5%-30% smaller than the radius R left of a circumference on which a plurality of left side oxygen-enriched spray guns are positioned on the lower side of a left side combustor which is far away from the furnace door; or the fuel spray gun in the combustor is replaced with a special oxygen-enriched co-combustion spray gun for fuel-oil fuel-gas and oxygen-enriched local oxygenated jet flow auxiliary combustion.
Description
Technical field
The present invention relates to the molten local oxygen-enriched oxygenation jet combustion supporting of aluminium reverberatory furnace energy-saving emission-reducing apparatus, be applicable to the reverberatory furnace of all smelting metals, belong to the energy-conservation sciemtifec and technical sphere of reverberatory furnace oxygen enrichment.
Background technology
In molten aluminium reverberatory furnace industry, go back so far nobody and used rich Combustion Technics, this may be because the opening of molten aluminium reverberatory furnace and poor sealing feature thereof, politician is exactly the discontinuity operation of molten aluminium stove, brings certain negative property to the energy-conservation effect of carrying of oxygen enrichment, but as long as by adjusting the flame distribution of two burners, by the spray angle of adjustment oxygen rich gas with by former burner fuel spray gun replacement cost inventor uncle's Wei minister in ancient times's patent oxygen enrichment spray gun " the multifuel combustion nozzle of 201120342769.3 fuel-firing gas-firings and local oxygen-enriched oxygen enriching burning-aid ", allow the burner combustion flame high-temperature region of close fire door move down and to move a certain distance toward burner direction, allow away from the burner combustion flame high-temperature region of fire door toward moving a certain distance away from burner direction simultaneously, to reduce near flue gas mean temperature fire door, and increase the mean temperature on metallic aluminium material surface, make the combustion flame high-temperature region of original two burners be close to overlapping state, be adjusted into the combustion flame high-temperature region of a burner near burner, the combustion flame high-temperature region of a burner is away from burner, so just can improve significantly the thermal efficiency of molten aluminium stove.
Summary of the invention
The object of this invention is to provide a kind of can pass through the to adjust spray angle of oxygen rich gas or the spray angle of fuel, allow the burner combustion flame high-temperature region of close fire door move down and to move a certain distance toward burner direction, allow away from the burner combustion flame high-temperature region of fire door toward moving a certain distance away from burner direction simultaneously, to reduce near flue gas mean temperature fire door, and increase the local oxygen-enriched oxygenation jet combustion supporting of the molten aluminium reverberatory furnace energy-saving emission-reducing apparatus of the mean temperature on metallic aluminium material surface.
The molten local oxygen-enriched oxygenation jet combustion supporting of aluminium reverberatory furnace energy-saving emission-reducing apparatus, comprises and is installed on many covers oxygen enrichment spray gun of the outer lower half circle of burner and is installed on the oxygen enrichment multifuel combustion spray gun in burner fuel gun hole; It is characterized in that:
1, a plurality of oxygen enrichment spray guns are arranged on equably in the semi-circumference of the outer lower half circle of burner, the semi-circumference center of circle of lower half circle and the center of circle of burner are the same center of circle, for the reverberatory furnace of two burners, the residing radius of a circle R of a plurality of right sides oxygen enrichment spray gun of right side its downside of burner of close fire door is right, left less by 5% ~ 30% than the residing radius of a circle R of a plurality of left sides oxygen enrichment spray gun of left side its downside of burner away from fire door, its oxygen enrichment jet-stream wind axis of oxygen enrichment spray gun, a plurality of right sides of right side its downside of burner and the angle Q of combustion flame axis near fire door are right, left less by 5% ~ 40% than the angle Q of its oxygen enrichment jet-stream wind axis of oxygen enrichment spray gun, a plurality of left sides of left side its downside of burner away from fire door and combustion flame axis, its jet hole inner diameter D of a plurality of right sides oxygen enrichment spray gun of right side its downside of burner of close fire door is right, than its jet hole inner diameter D of a plurality of left sides oxygen enrichment spray gun of left side its downside of burner away from fire door left large 5% ~ 30%, the oxygen enrichment jet-stream wind flow velocity that a plurality of right sides oxygen enrichment lance ejection near right side its downside of burner of fire door is gone out, be less than the oxygen enrichment jet-stream wind flow velocity that a plurality of left sides oxygen enrichment lance ejection away from left side its downside of burner of fire door goes out, thereby make near its high-temperature region, combustion flame center, right side of right side burner of fire door right to burner direction displacement T, make away from its high-temperature region, combustion flame center, left side of the left side burner of fire door to left away from burner direction displacement T, 50mm≤T the right side≤2000 mm, a 50mm≤T left side≤1500 mm, simultaneously, also make to shift near apart from K to aluminium charge level near its combustion flame high-temperature region, right side of right side burner of fire door, 30mm≤K≤600mm, thereby the aluminium material that makes burner district more approaches combustion flame high-temperature region, right side, be conducive to strengthen heat exchange.
2, burner fuel spray gun is replaced with to the oxygen enrichment multifuel combustion spray gun of special-purpose fuel-firing gas-firing and local oxygen-enriched oxygen enriching burning-aid, and make near its oxygen enrichment multifuel combustion spray gun axis of oxygen enrichment multifuel combustion spray gun in the right side burner of fire door and fuel injection stream axis angle P right, be greater than away from left 1 ° ~ 10 ° of its oxygen enrichment multifuel combustion spray gun axis of oxygen enrichment multifuel combustion spray gun in the left side burner of fire door and fuel injection stream axis angle P, a 0.5 °≤P left side≤10 °, 1 °≤P the right side≤12 °, thereby make near its high-temperature region, combustion flame center, right side of right side burner of fire door right to burner direction displacement T, make away from its high-temperature region, combustion flame center, left side of the left side burner of fire door to left away from burner direction displacement T, 50mm≤T the right side≤2000 mm, a 50mm≤T left side≤1500 mm.
3, make near its high-temperature region, combustion flame center, right side of right side burner of fire door right back to burner direction displacement T, can make its more close burner district, high-temperature region, combustion flame center, right side of right side burner, thereby be conducive to the heat radiation heat exchange of the aluminium material in close burner district in enhancing and burner hearth, simultaneously, its high-temperature region, combustion flame center, right side of right side burner near fire door is right back to burner direction displacement T, its combustion product gases of right side burner near fire door stops the longer time in burner hearth, thereby be conducive to strengthen the heat exchange between flue gas and aluminium material, make away from its high-temperature region, combustion flame center, left side of the left side burner of fire door to left back away from burner direction displacement T, can make its more close stove tail region, high-temperature region, combustion flame center, left side of left side burner, thereby be conducive to strengthen and the heat radiation heat exchange of burner hearth near the aluminium material of stove tail region, in addition, its combustion flame high-temperature region, right side of right side burner near fire door shifts near apart from K to aluminium charge level, thereby make near its right side combustion flame of right side burner of fire door and flue gas is faster carries out heat exchange with aluminium material, and then near the mean temperature of its combustion product gases of right side burner that makes close fire door fire door decline to some extent.
The present invention compared with prior art has the following advantages:
1, the present invention can successfully be applied to local oxygen-enriched oxygenation jet combustion supporting molten aluminium reverberatory furnace easily and efficiently, and this does not also have precedent at home and abroad.
2, the present invention can be by adjusting the spray angle of oxygen rich gas or the spray angle of fuel, allow the burner combustion flame high-temperature region of close fire door move down and to move a certain distance toward burner direction, allow away from the burner combustion flame high-temperature region of fire door toward moving a certain distance away from burner direction simultaneously, to reduce near flue gas mean temperature fire door, and increase the mean temperature on metallic aluminium material surface.
3,
accompanying drawing explanation
Fig. 1 is embodiment of the present invention generalized section;
Fig. 2 is middle A-A generalized section embodiment illustrated in fig. 1;
Fig. 3 is middle B-B generalized section embodiment illustrated in fig. 1;
Fig. 4 is middle oxygen enrichment multifuel combustion spray gun schematic diagram embodiment illustrated in fig. 1;
Fig. 5 is M enlarged diagram in oxygen enrichment multifuel combustion spray gun embodiment illustrated in fig. 4.
In Fig. 1-5: 1, burner 2, burner 3, oxygen enrichment spray gun 4, Fuel lance 5, oxygen enrichment jet-stream wind 6, combustion flame 7, the angle Q 8 of oxygen enrichment jet-stream wind axis and combustion flame axis, aluminium material 9, magnetic agitation rotor 10, furnace bottom 11, furnace roof 12, discharging opening 13, stove tail 14, furnace wall 15, left side, left side burner 16, left side Fuel lance 17, flame-observing hole 18, left side oxygen enrichment spray gun 19, the residing circumference 20 of oxygen enrichment spray gun, right side burner 21, right side Fuel lance 22, right side oxygen enrichment spray gun 23, furnace wall, right side 24, left side combustion flame 25, right side combustion flame 26, fire door 27, air duct 28, fuel channel 29, oxygen enrichment passage 30, fuel flow 31, oxygen-enriched stream 32, air stream 33, oxygen enrichment multifuel combustion spray gun axis 34, fuel injection stream axis 35, fuel jet orifice 36, fuel injection stream 37, oxygen enrichment multifuel combustion spray gun axis and fuel injection stream axis angle P 38, fuel injection stream joint 39, oxygen enrichment multifuel combustion spray gun.
The specific embodiment
In the embodiment shown in Fig. 1-5: the molten local oxygen-enriched oxygenation jet combustion supporting of aluminium reverberatory furnace energy-saving emission-reducing apparatus, comprises and be installed on many covers oxygen enrichment spray gun 3 of burner 1 outer lower half circle and be installed on the oxygen enrichment multifuel combustion spray gun 39 in burner 1 Fuel lance 4 holes, it is characterized in that: a plurality of oxygen enrichment spray guns 3 are arranged in the semi-circumference of burner 1 outer lower half circle equably, and the semi-circumference center of circle of lower half circle and the center of circle of burner 1 are the same center of circle, reverberatory furnace for two burners, the residing radius of a circle R of a plurality of right sides oxygen enrichment spray gun 22 of right side burner 20 its downsides of close fire door 26 is right, left less by 5% ~ 30% than the residing radius of a circle R of a plurality of left sides oxygen enrichment spray gun 18 of left side burner 15 its downsides away from fire door 26, a plurality of right sides oxygen enrichment spray gun 22 its oxygen enrichment jet-stream wind axis of right side burner 20 its downsides of close fire door 26 and the angle Q right side 7 of combustion flame axis, less by 5% ~ 40% than an angle Q left side 7 for a plurality of left sides oxygen enrichment spray gun 18 its oxygen enrichment jet-stream wind axis of left side burner 15 its downsides away from fire door 26 and combustion flame axis, a plurality of right sides oxygen enrichment spray gun 22 its jet hole inner diameter D of right side burner 20 its downsides of close fire door 26 are right, than a plurality of left sides oxygen enrichment spray gun of left side burner 15 its downsides away from fire door 26 18 its jet hole inner diameter D left large 5% ~ 30%, oxygen enrichment jet-stream wind 5 flow velocitys that a plurality of right sides oxygen enrichment spray gun 22 near right side burner 20 its downsides of fire door 26 is ejected, be less than oxygen enrichment jet-stream wind 5 flow velocitys that a plurality of left sides oxygen enrichment spray gun 18 away from left side burner 15 its downsides of fire door 26 ejects, thereby make near right side burner 20 its right side combustion flame 25 high-temperature regions, center of fire door 26 right to burner 1 direction displacement T, make its combustion flame 24 high-temperature regions, center, left side of left side burner 15 away from fire door 26 to left away from burner 1 direction displacement T, 50mm≤T the right side≤2000 mm, a 50mm≤T left side≤1500 mm, simultaneously, also make to shift near apart from K to aluminium material 8 faces near right side burner 20 its right side combustion flame 25 high-temperature regions of fire door 26, 30mm≤K≤600mm, thereby the aluminium material 8 that makes burner 2nd district more approaches right side combustion flame 25 high-temperature regions, be conducive to strengthen heat exchange.
Burner 1 fuel spray gun 4 is replaced with to the oxygen enrichment multifuel combustion spray gun 39 of special-purpose fuel-firing gas-firing and local oxygen-enriched oxygen enriching burning-aid, and make near oxygen enrichment multifuel combustion spray gun 39 its oxygen enrichment multifuel combustion spray gun axis and the angle P right side, fuel injection stream axis 37 in the right side burner 20 of fire door 26, be greater than away from left 37 1 ° ~ 10 ° of oxygen enrichment multifuel combustion spray gun 39 its oxygen enrichment multifuel combustion spray gun axis in the left side burner 15 of fire door 26 and fuel injection stream axis angle P, a 0.5 °≤P left side≤10 °, 1 °≤P the right side≤12 °, thereby make near right side burner 20 its right side combustion flame 25 high-temperature regions, center of fire door 26 right to burner 1 direction displacement T, make its combustion flame 24 high-temperature regions, center, left side of left side burner 15 away from fire door 26 to left away from burner 1 direction displacement T, 50mm≤T the right side≤2000 mm, a 50mm≤T left side≤1500 mm.
Make near right side burner 20 its right side combustion flame 25 high-temperature regions, center of fire door 26 right back to burner 1 direction displacement T, can make right side burner 20 its right side combustion flame 25 more close burner 2nd districts, high-temperature region, center, thereby be conducive to the heat radiation heat exchange of the aluminium material 8 in close burner 2nd district in enhancing and burner hearth, simultaneously, right side burner 20 its right side combustion flame 25 high-temperature regions, center near fire door 26 are right back to burner 1 direction displacement T, right side burner 20 its combustion product gases near fire door 26 stop the longer time in burner hearth, thereby be conducive to strengthen the heat exchange between flue gas and aluminium material 8, make its combustion flame 24 high-temperature regions, center, left side of left side burner 15 away from fire door 26 to left back away from burner 1 direction displacement T, can make left side burner 15 its combustion flame 24 more close Lu Wei 13rd districts, high-temperature region, center, left side, thereby be conducive to strengthen and the heat radiation heat exchange of burner hearth near the aluminium material 8 in Lu Wei 13rd district, in addition, right side burner 20 its right side combustion flame 25 high-temperature regions near fire door 26 shift near apart from K to aluminium material 8 faces, thereby make near right side burner 20 its right side combustion flames 25 of fire door 26 and flue gas is faster carries out heat exchange with aluminium material 8, and then near the mean temperature of burner 20 its combustion product gases in right side fire door 26 of close fire door 26 declined to some extent.
Claims (2)
1. the molten local oxygen-enriched oxygenation jet combustion supporting of aluminium reverberatory furnace energy-saving emission-reducing apparatus, comprises and is installed on many covers oxygen enrichment spray gun (3) of the outer lower half circle of burner (1) and is installed on the oxygen enrichment multifuel combustion spray gun (39) in burner (1) Fuel lance (4) hole; It is characterized in that: a plurality of oxygen enrichment spray guns (3) are arranged on equably in the semi-circumference of the outer lower half circle of burner (1), the center of circle of the semi-circumference center of circle of lower half circle and burner (1) is the same center of circle; Reverberatory furnace for two burners, the residing radius of a circle R of a plurality of right side oxygen enrichment spray guns (22) of its downside of right side burner (20) of close fire door (26) is right, left less by 5% ~ 30% than the residing radius of a circle R of a plurality of left side oxygen enrichment spray guns (18) of its downside of left side burner (15) away from fire door (26); Near its oxygen enrichment jet-stream wind axis of a plurality of right side oxygen enrichment spray guns (22) of its downside of right side burner (20) and the angle Q of combustion flame axis right (7) of fire door (26), less by 5% ~ 40% than the angle Q of its oxygen enrichment jet-stream wind axis of a plurality of left side oxygen enrichment spray guns (18) of its downside of left side burner (15) away from fire door (26) and combustion flame axis left (7); Its jet hole inner diameter D of a plurality of right side oxygen enrichment spray guns (22) of its downside of right side burner (20) of close fire door (26) is right, than its jet hole inner diameter D of a plurality of left side oxygen enrichment spray guns (18) of its downside of left side burner (15) away from fire door (26) left large 5% ~ 30%.
2. the local oxygen-enriched oxygenation jet combustion supporting of molten aluminium reverberatory furnace as claimed in claim 1 energy-saving emission-reducing apparatus, it is characterized in that: the oxygen enrichment multifuel combustion spray gun (39) that burner (1) fuel spray gun (4) is replaced with to special-purpose fuel-firing gas-firing and local oxygen-enriched oxygen enriching burning-aid, and make near its oxygen enrichment multifuel combustion spray gun axis of oxygen enrichment multifuel combustion spray gun (39) in the right side burner (20) of fire door (26) and fuel injection stream axis angle P right (37), be greater than its oxygen enrichment multifuel combustion spray gun axis of oxygen enrichment multifuel combustion spray gun (39) and (37) 1 ° ~ 10 °, a fuel injection stream axis angle P left side in the left side burner (15) away from fire door (26), a 0.5 °≤P left side≤10 °, 1 °≤P the right side≤12 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543998.0U CN203432280U (en) | 2013-09-03 | 2013-09-03 | Oxygen-enriched local oxygenated jet flow auxiliary combustion energy-saving emission reduction device for aluminum-melting reverberatory furnace |
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| CN201320543998.0U CN203432280U (en) | 2013-09-03 | 2013-09-03 | Oxygen-enriched local oxygenated jet flow auxiliary combustion energy-saving emission reduction device for aluminum-melting reverberatory furnace |
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| CN203432280U true CN203432280U (en) | 2014-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438696A (en) * | 2013-09-03 | 2013-12-11 | 魏伯卿 | Molten aluminum reverberator oxygen-enriched partial-aeration jet combustion-supporting energy-saving emission-reduction system |
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- 2013-09-03 CN CN201320543998.0U patent/CN203432280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438696A (en) * | 2013-09-03 | 2013-12-11 | 魏伯卿 | Molten aluminum reverberator oxygen-enriched partial-aeration jet combustion-supporting energy-saving emission-reduction system |
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