CN104561587B - Concentrate jet nozzle of smelting furnace - Google Patents
Concentrate jet nozzle of smelting furnace Download PDFInfo
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- CN104561587B CN104561587B CN201510028381.9A CN201510028381A CN104561587B CN 104561587 B CN104561587 B CN 104561587B CN 201510028381 A CN201510028381 A CN 201510028381A CN 104561587 B CN104561587 B CN 104561587B
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Abstract
The invention discloses a concentrate jet nozzle of a smelting furnace. The concentrate jet nozzle comprises an oxygen supply pipe, a dispersing air pipe and a water-cooled jacket, all of which are coincident in pipe cores, orderly increased in pipe diameter and orderly arranged to sleeve each other, wherein an air supply channel extends from the feeding hole of the water-cooled jacket into the feeding tubular cavity of the water-cooled jacket; the air outlet of the air supply channel is located at the lower portion of the feeding tubular cavity. As the air supply channel is arranged in the feeding tubular cavity of the water-cooled jacket, compressed air can be premixed with mineral aggregate in the feeding tubular cavity when being discharged from the lower portion of the feeding tubular cavity via the air supply channel, and then the premixed mineral aggregate is further mixed with process air in a process air box, and therefore, the homogeneity of mixing of the mineral aggregate with the process air can be effectively improved, furthermore, the combustion effect of the mineral aggregate is further improved, and the mass transfer and heat transfer rates in the reaction tower are intensified; as a result, the generation rate of smoke dust and SO3 in the smoke dust can be effectively reduced, the difficulty of subsequent smoke dust treatment is reduced, and the capacity of matte obtained by smelting is improved.
Description
Technical field
The present invention relates to the technical field of smelting of copper is and in particular to a kind of concentrate burner of smelting furnace.
Background technology
In the flash smelting technique of copper, it is that concentrate burner and the technique for blasting technique wind are set at the top of smelting furnace
Bellows, spray into copper concentrate mineral aggregate, oxygen and dispersion wind by concentrate burner, in the bottom of concentrate burner, ore deposit into smelting furnace
Material is mixed with technique wind and ignition forms slag and matte, and mineral aggregate and technique wind are realized being sufficiently mixed, and this is mineral aggregate in essence
Carry out one of quick, essential condition of complete oxidation in the limited space in ore deposit nozzle bottom.
At present, the concentrate burner that copper mine enterprise uses is the central authorities' expansion being designed and produced by Outokumpu company mostly
Scattered type concentrate burner, as shown in figure 1, the feature of this concentrate burner is mineral aggregate and technique wind sprays in stove in the same direction, mainly passes through gas
The purpose of mixing is mutually reached with solid phase phase counterdiffusion, infiltration, when carrying out low level material spray using this central authorities diffused concentrate burner,
That is the entrance of mineral aggregate near technique wind export when, mineral aggregate is easier to mix with technique wind, but in high-order material spray, also
Say that the entrance of mineral aggregate is higher, when still having certain difference in height with the outlet of technique wind, now mineral aggregate reaction time relative delay, separately
Outward, when the input amount of mineral aggregate is less, entering stove mineral aggregate rapidly can be heated to reaction temperature by furnace high-temperature flue gas or radiant heat,
And begin to violent combustion reaction in the range of about 1.5m exporting apart from concentrate burner, and the input amount of mineral aggregate is more
When, it is difficult to ensure that mineral aggregate is enough sufficiently mixed with technique wind energy in the finite spatial extent of reaction tower its top feed mouth, thus greatly
Have impact on greatly mass transfer, the rate of heat transfer of combustion reaction, not only cause the ferroso-ferric oxide content in slag to increase, on dust rate
So in liter, flue dust3Production rate rises, and the utilization ratio of oxygen is also decreased obviously, and then affects the production capacity of melting product matte.
Therefore, how to ensure being sufficiently mixed of mineral aggregate and technique wind, improve the combustion efficiency of copper concentrate mineral aggregate, this is to flash smelting technique
For extremely important.
Content of the invention
It is an object of the invention to provide a kind of concentrate ensureing that technique wind and mineral aggregate are sufficiently mixed, improve mineral aggregate Smelting Effect
Nozzle.
For achieving the above object, the technical solution used in the present invention is: a kind of concentrate burner of smelting furnace, including tube core weight
Close, caliber increase successively and successively the oxygen supplying tube of sheathed arrangement, dispersion airduct and water-cooling jacket it is characterised in that: described
It is extended with air-supply passage into charging tube chamber, the air outlet of air-supply passage is located under charging tube chamber at the charge door of water-cooling jacket
Portion.
Using having the beneficial effects that technique scheme produces: in the charging tube chamber of water-cooling jacket, setting air-supply is logical
Road, such compressed air through air-supply passage from feed tube chamber bottom discharge when, can with feed intraluminal mineral aggregate carry out pre-
Mixed, the mineral aggregate after premix is mixed with the technique wind in technique bellows again, can effectively improve mineral aggregate and mix with technique wind
The uniformity closed, and then improve mineral aggregate combustion efficiency, enhance mass transfer in reaction tower, rate of heat transfer, so not only make molten
Refine the matte production capacity lifting obtaining, and effectively reduce so in flue dust and flue dust3Production rate, is the dust treatment fall of postorder
Low difficulty.
Brief description
Fig. 1 is the structural representation of the concentrate burner of smelting furnace in prior art；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the i portion enlarged drawing of Fig. 2；
Fig. 4 is the structural representation of eddy flow sleeve pipe；
Fig. 5 is the structural representation of ring-shaped baffle.
Specific embodiment
A kind of concentrate burner of smelting furnace, as Figure 2-3, it include tube core overlap, caliber increase successively and successively
The oxygen supplying tube 10 of sheathed arrangement, dispersion airduct 20 and water-cooling jacket 30, to charge pipe at the charge door of described water-cooling jacket 30
It is extended with air-supply passage, the air outlet of air-supply passage is located at the bottom of charging tube chamber in chamber.So-called water-cooling jacket 30, in fact
It is exactly the charge pipe that periphery is provided with sheath, the tube chamber of charge pipe supplies mineral aggregate to put into, the folder chamber setting between charge pipe and sheath
For water passage to implement to cool to equipment.The present invention arranges air-supply passage in the charging tube chamber of water-cooling jacket 30, this
Sample compressed air, can be premixed with the intraluminal mineral aggregate that feeds through air-supply passage when the bottom of the tube chamber that feeds is discharged, this
Mineral aggregate after premix for the sample is mixed with the technique wind in technique bellows 110 again, can effectively improve mineral aggregate and technique wind
Mixing uniformity, and then improve mineral aggregate combustion efficiency, enhance mass transfer in reaction tower, rate of heat transfer, so not only make
The matte production capacity lifting that obtains of melting, and effectively reduce so in flue dust and flue dust during melting mineral aggregate3Production rate,
Thus reducing difficulty for the dust treatment of postorder, specifically, experiment proves that, compared with prior art, in the size of reaction tower
Under same case, improve 20% using concentrate burner disclosed by the invention to the production capacity that can make matte in smelting furnace during feed.
As further preferred version: the intraluminal air-supply passage of charging of described water-cooling jacket 30 has two, first,
The air outlet of the second air-supply passage 41,42 is located at straight down and respectively the lateral wall of dispersion airduct 20 and water-cooling jacket 30
At madial wall.As Figure 2-3, by the arrangement of first, second two air-supply passages 41,42 so that compressed air from
Both sides are pre-mixed to the intraluminal mineral aggregate of charging of water-cooling jacket 30, so can improve the mixing effect of mineral aggregate further
Really.
Specifically, in order to improve the mixing uniformity of mineral aggregate and technique wind further, as shown in Figure 2,4, outside described water-cooled
It is arranged with eddy flow sleeve pipe 50 on the lower, outer perimeter wall of set 30, the tube wall of eddy flow sleeve pipe 50 is provided with the swirl vane for air guide
51.Within the chamber between described water-cooling jacket 30 and technique bellows 110 is the flow region of technique wind, therefore in water-cooling jacket 30
Lower, outer perimeter wall on the sheathed eddy flow sleeve pipe 50 with swirl vane 51, so can make in technique bellows 110 or say water-cooled
The technique wind of water jacket 30 periphery can be discharged with the attitude of eddy flow and be mixed with mineral aggregate because of the air guide of swirl vane 51 effect, this
Being more fully mixed of sampling technology wind and mineral aggregate, uniformly, the overall profile of concrete swirl vane 51 can be s shape curved or
Tabular.Preferably, the upper end of described eddy flow sleeve pipe 50 is connected with lifter 60, as shown in Figure 2,4, according to actual production feelings
Condition, the distance between discharging opening of the air outlet according to technique wind and water-cooling jacket 30 in other words, can be fitted by lifter 60
The local height to eddy flow sleeve pipe 50 is adjusted, and so can be revolved with mineral aggregate with the technique wind in adjusting process bellows 110
Air quantity during stream mixing, and then guarantee mixed effect.
Further, as Figure 2-3, described first air-supply passage 41 is by epimere passage 411 and hypomere passage 412 structure
Become, the air inlet of epimere passage 411 self-dispersing airduct 20 extends downward the middle part in dispersion airduct chamber, and hypomere passage 412 is from water
The middle part of the charging tube chamber of cold overcoat 30 extends to the bottom of charging tube chamber, and the middle part tube wall of dispersion airduct 20 offers connection
The through hole 21 of the air inlet of the air outlet of epimere passage 411 and hypomere passage 412 is it is preferred that the middle part of described dispersion airduct 20
Through hole at tube wall is spaced apart about 21 and is provided with two, and two through holes 21 of arrangement are ventilated, and so can make compressed air Decentralized Pull in.
In general, in order to ensure the uniform input of mineral aggregate, as Figure 1-3, the top interval of the periphery wall of described dispersion airduct 20
It is provided with the cutting plate 120 that 2-3 plate face stretches out, the first air-supply passage 41 is adopted two-part arrangement by the therefore present invention,
The position of cutting plate 120 so can be opened with avoidance, the effective introducing of the compressed air of premix mineral aggregate can be effectively ensured again,
Moreover, the epimere passage 411 of the first air-supply passage 41 is arranged in the tube chamber of dispersion airduct 20 and both facilitated, and can be water
The charging tube chamber of cold overcoat 30 vacates the more space that feeds intake, and prevents smelting technology from cannot be thrown according to the gas material ratio setting
Material.
During reality processing, first, second air-supply passage 41,42 is structure arrangement formation in the following manner: such as Fig. 2-3
Shown, the periphery wall of middle hypomere of described dispersion airduct 20 is provided with windband 70, the inwall of windband 70 and dispersion airduct 20
The hypomere passage 412 of the first air-supply passage 41 is constituted between periphery wall；Be provided with the charging tube chamber of described water-cooling jacket 30 with
The airduct 80 that the tube core of water-cooling jacket 30 overlaps, constitutes second and send between the internal perisporium of the periphery wall of airduct 80 and water-cooling jacket 30
Wind passage 42.In other words, in general, the hypomere passage 412 of the first air-supply passage 41 and the second air-supply passage 42 are edges
The circumferentially continuous arrangement of water-cooling jacket 30 so that compressed air is from the air-out of first, second two air-supply passages 41,42
Mouth is to be pre-mixed with the mineral aggregate positioned at zone line in the form of surrounding when discharging, and so substantially increases the premix of mineral aggregate
Effect.
Further, as shown in figures 2 and 5, the air outlet of described second air-supply passage 42 is provided with horizontally disposed ring
Shape baffle plate 90, the plate face of ring-shaped baffle 90 is arranged at intervals with the exhaust vent 91 that air feed passes through, it is, it is logical to be located at the second air-supply
Compressed air in road 42 is finally that the exhaust vent 91 from ring-shaped baffle 90 is discharged, and is so for the ease of adjusting compressed air
Wind speed and air quantity, additionally, it is preferred that, on the inwall of described water-cooling jacket 30, be located at air-supply passage the lower section of air outlet at
It is provided with Venturi tube 100, as shown in Fig. 2 by the arrangement of Venturi tube 100, the mineral aggregate that can make premix compressed air is to divide
Scattered state Jet with downward flow direction, thus improve the combustion efficiency of mineral aggregate.
Claims (8)
1. a kind of concentrate burner of smelting furnace, oxygen supplying tube that increase successively including tube core coincidence, caliber and sheathed arrangement successively
(10), dispersion airduct (20) and water-cooling jacket (30) it is characterised in that: to charging at the charge door of described water-cooling jacket (30)
It is extended with air-supply passage, the air outlet of air-supply passage is located at the bottom of charging tube chamber in tube chamber；Described water-cooling jacket (30) plus
Expect that intraluminal air-supply passage has two, the air outlet of first, second air-supply passage (41,42) is located at straight down and respectively
At the madial wall of the lateral wall of dispersion airduct (20) and water-cooling jacket (30)；Described first air-supply passage (41) is by epimere passage
(411) constitute with hypomere passage (412), the air inlet of epimere passage (411) self-dispersing airduct (20) extends downward dispersion wind
The middle part of tube chamber, hypomere passage (412) extends to the bottom of charging tube chamber from the middle part of the charging tube chamber of water-cooling jacket (30), point
The air outlet of connection epimere passage (411) and the air inlet of hypomere passage (412) are offered on the middle part tube wall of scattered airduct (20)
Through hole (21).
2. according to claim 1 smelting furnace concentrate burner it is characterised in that: the lower, outer perimeter of described water-cooling jacket (30)
Eddy flow sleeve pipe (50) is arranged with wall, the tube wall of eddy flow sleeve pipe (50) is provided with the swirl vane (51) for air guide.
3. according to claim 2 smelting furnace concentrate burner it is characterised in that: the upper end of described eddy flow sleeve pipe (50) connects
There is lifter (60).
4. according to claim 1 smelting furnace concentrate burner it is characterised in that: described dispersion airduct (20) middle part tube wall
The through hole (21) at place is spaced apart up and down and is provided with two.
5. according to claim 1 or 4 smelting furnace concentrate burner it is characterised in that: under in described dispersion airduct (20)
Windband (70) is provided with the periphery wall of section, constitutes first between the periphery wall of the inwall of windband (70) and dispersion airduct (20) and send
The hypomere passage (412) of wind passage (41).
6. according to claim 1 smelting furnace concentrate burner it is characterised in that: the charging tube chamber of described water-cooling jacket (30)
Inside it is provided with the airduct (80) overlapping with the tube core of water-cooling jacket (30), the periphery wall of airduct (80) is interior with water-cooling jacket (30)
The second air-supply passage (42) is constituted between perisporium.
7. according to claim 6 smelting furnace concentrate burner it is characterised in that: the air-out of described second air-supply passage (42)
It is provided with horizontally disposed ring-shaped baffle (90) at mouthful, the plate face of ring-shaped baffle (90) is arranged at intervals with the air-out that air feed passes through
Hole (91).
8. according to claim 1-4, the concentrate burner of smelting furnace any one of 6-7 it is characterised in that: described water-cooling jacket
(30) on inwall, at the lower section of air outlet of air-supply passage, it is provided with Venturi tube (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028381.9A CN104561587B (en) | 2015-01-20 | 2015-01-20 | Concentrate jet nozzle of smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028381.9A CN104561587B (en) | 2015-01-20 | 2015-01-20 | Concentrate jet nozzle of smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104561587A CN104561587A (en) | 2015-04-29 |
| CN104561587B true CN104561587B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510028381.9A Active CN104561587B (en) | 2015-01-20 | 2015-01-20 | Concentrate jet nozzle of smelting furnace |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288815B (en) * | 2016-08-04 | 2018-06-29 | 合肥通用机械研究院 | A kind of vibration premixed type concentrate burner |
| CN110777265B (en) * | 2019-12-02 | 2024-02-20 | 江西铜业股份有限公司 | Concentrate nozzle of cyclone diffusion type flash furnace |
| CN112458311B (en) * | 2020-11-24 | 2022-04-29 | 本田金属技术（佛山）有限公司 | Pressure feeding device for refining agent |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI100889B (en) * | 1996-10-01 | 1998-03-13 | Outokumpu Oy | Process for feeding and directing reaction gas and solid into a furnace and multiple control burner intended for this purpose |
| FI120101B (en) * | 2007-09-05 | 2009-06-30 | Outotec Oyj | concentrate Burner |
| CN102876902A (en) * | 2012-10-18 | 2013-01-16 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Method for composite smelting of copper concentrate flash-molten bath and outokumpu flash furnace |
| CN104251622B (en) * | 2013-06-28 | 2016-04-13 | 中南大学 | A kind of suspension smelting furnace nozzle |
| CN103453774B (en) * | 2013-09-09 | 2014-12-24 | 中南大学 | Inner vortex mixing type alloy nozzle |
| CN204434699U (en) * | 2015-01-20 | 2015-07-01 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | The concentrate burner of flash smelting furnace |
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Effective date of registration: 20190416 Address after: 244100 West Building of Changjiang West Road Nonferrous Courtyard, Tongling City, Anhui Province Patentee after: Tongling Nonferrous Metals Group Co., Ltd. Address before: 244100 Jinguan Copper Branch of Tongling Nonferrous Circular Economy Industrial Park, Anhui Province Patentee before: JINGUAN COPPER INDUSTRY BRANCH OF TONGLING NONFERROUS METALS GROUP HOLDING CO., LTD. |
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| TR01 | Transfer of patent right |