CN105823334B - It is blown the side-blown submerged combustion bath smelting device of oxygen-enriched air and fine coal - Google Patents
It is blown the side-blown submerged combustion bath smelting device of oxygen-enriched air and fine coal Download PDFInfo
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- CN105823334B CN105823334B CN201610321896.2A CN201610321896A CN105823334B CN 105823334 B CN105823334 B CN 105823334B CN 201610321896 A CN201610321896 A CN 201610321896A CN 105823334 B CN105823334 B CN 105823334B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/21—Burners specially adapted for a particular use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D2099/0036—Heating elements or systems using burners immersed in the charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The invention discloses a kind of side-blown submerged combustion bath smelting devices for being blown oxygen-enriched air and fine coal, comprising: smelting furnace；For conveying the fine coal delivery pipe of fine coal；For conveying the air delivery pipe of oxygen-enriched air, the air delivery pipe is connected to gas source；Multiple coal powder injection components, multiple coal powder injection components are spaced setting on the opposite two sidewalls of the smelting furnace respectively, each coal powder injection component includes the fine coal spray gun and air gun of Adjacent pairs setting, each fine coal spray gun is connected to the fine coal delivery pipe, each air gun is connected to the air delivery pipe, and each coal powder injection component is extending at least partially into the smelting furnace.The side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to an embodiment of the present invention can have many advantages, such as that high production efficiency, operating cost are low, applicability is wide using fine coal as fuel.
Description
Technical field
The present invention relates to metallurgical technology fields, in particular to a kind of side-blown submergence for being blown oxygen-enriched air and fine coal
Burn bath smelting device.
Background technique
Side-blown submerged combustion bath smelting technique (SSC technique) is by the air ports of smelting furnace two sides or spray gun to molten bath
Interior penetrating oxygen-enriched air and gaseous fuel, the gas stirring molten bath of penetrating accelerate the heat and mass and chemical reaction in molten bath, extensively
It is general to be applied to non-ferrous metals and the field for the treatment of of solid waste such as lead smelting, zinc leaching residue fuming, Copper making.
Side-blown submergence smelting apparatus in the related technology is used as fuel using natural gas, coke-stove gas and generation coal gas etc.,
And area is lacked for combustion gas, then use combustion gas that can not be economic limits side-blown leaching as side-blown submergence smelting apparatus fuel
Do not have the applicability of combustion technology.
Smelting apparatus in the related technology, according to coal dust as fuel, coal dust and air in the inside of spray gun or tuyere
Mixing, to guarantee safety, the oxygen concentration in air cannot be excessively high, causes its specific capacity, thermal efficiency etc. that can not adapt to currently have
The needs of non-ferrous metal smelting industry development, therefore cannot achieve large-scale industrial production.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, this hair
The bright side-blown submerged combustion bath smelting device for proposing a kind of blowing oxygen-enriched air and fine coal, the blowing oxygen-enriched air and fine coal
Side-blown submerged combustion bath smelting device can be using fine coal as fuel, and with high production efficiency, operating cost is low, applicability is wide
The advantages that.
To achieve the above object, embodiment according to the present invention proposes a kind of side-blown submergence for being blown oxygen-enriched air and fine coal
Burn bath smelting device, and the side-blown submerged combustion bath smelting device of the blowing oxygen-enriched air and fine coal includes: smelting furnace；
For conveying the fine coal delivery pipe of fine coal；For conveying the air delivery pipe of oxygen-enriched air, the air delivery pipe and gas source connect
It is logical；Multiple coal powder injection components, multiple coal powder injection components are spaced setting on the opposite two sidewalls of the smelting furnace respectively, each
The coal powder injection component include Adjacent pairs setting fine coal spray gun and air gun, each fine coal spray gun with the fine coal
Delivery pipe connection, each air gun are connected to the air delivery pipe, and each coal powder injection component is at least partly stretched
Enter the smelting furnace.
The side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to an embodiment of the present invention, can be with
Fine coal has many advantages, such as that high production efficiency, operating cost are low, applicability is wide as fuel.
In addition, the side-blown submerged combustion bath smelting dress of blowing oxygen-enriched air according to the above embodiment of the present invention and fine coal
Setting can also have the following additional technical features:
According to one embodiment of present invention, one fine coal spray gun in two coal powder injection components relative to each other with
Another fine coal spray gun is opposite, and one air gun in two coal powder injection components relative to each other and another
Air gun is opposite.
According to one embodiment of present invention, one fine coal spray gun in two coal powder injection components relative to each other with
Another air gun is opposite, and one air gun in two coal powder injection components relative to each other and another
Fine coal spray gun is opposite.
According to one embodiment of present invention, multiple fine coal spray guns protrude into the equal length of the part of the smelting furnace
It and is 50-200 millimeters.
According to one embodiment of present invention, multiple air guns protrude into the equal length of the part of the smelting furnace
It and is 50-100 millimeters.
According to one embodiment of present invention, each fine coal spray gun and each air gun protrude into the melting
The equal length of the part of furnace.
According to one embodiment of present invention, the fine coal spray gun and the air gun in multiple coal powder injection components
The distance between it is equal.
According to one embodiment of present invention, each fine coal spray gun and each air gun are in the smelting furnace
On height it is equal.
According to one embodiment of present invention, the side-blown submerged combustion bath smelting dress of the blowing oxygen-enriched air and fine coal
Setting further includes fine coal distributor, and multiple fine coal spray guns are connected to by the fine coal distributor with the fine coal delivery pipe.
According to one embodiment of present invention, the fine coal spray gun includes: inner nozzle, on the inner nozzle have fine coal into
Mouth, fine coal spout and fine coal clean-up port；Outer nozzle, the outer nozzle are set on the inner nozzle and common with the inner nozzle
Cooling chamber is limited, there is the cooling air inlet being connected to the cooling chamber and cooling air spout on the outer nozzle；Sealing element,
The sealing element is located on the inner nozzle, and can be clear in the closed position and the opening fine coal for blocking the fine coal clean-up port
It manages and is moved between the open position of mouth；Wear-resistant liner, the wear-resistant liner are located on the inner peripheral surface of the inner nozzle.
According to one embodiment of present invention, the air gun includes: inner nozzle, on the inner nozzle have air into
Mouth, air port and impurity clean-up port；Outer nozzle, the outer nozzle are set on the inner nozzle and common with the inner nozzle
Cooling chamber is limited, there is the cooling air inlet being connected to the cooling chamber and cooling air spout on the outer nozzle；Sealing element,
The sealing element is located on the inner nozzle, and can be clear in the closed position and the opening impurity for blocking the impurity clean-up port
It manages and is moved between the open position of mouth.
Detailed description of the invention
Fig. 1 is that the side-blown submerged combustion molten bath of blowing oxygen-enriched air and fine coal accord to a specific embodiment of that present invention is molten
Refine the structural schematic diagram of device.
Fig. 2 is the side-blown submerged combustion molten bath of the blowing oxygen-enriched air and fine coal of another specific embodiment according to the present invention
The structural schematic diagram of smelting apparatus.
Fig. 3 is the side-blown submerged combustion molten bath of the blowing oxygen-enriched air and fine coal of another specific embodiment according to the present invention
The cross-sectional view of the fine coal spray gun of smelting apparatus.
Fig. 4 is the side-blown submerged combustion molten bath of the blowing oxygen-enriched air and fine coal of another specific embodiment according to the present invention
The cross-sectional view of the air gun of smelting apparatus.
Appended drawing reference: side-blown submerged combustion bath smelting device 1, the smelting furnace 100, fine coal of blowing oxygen-enriched air and fine coal
Delivery pipe 200, fine coal distributor 210, air delivery pipe 300, coal powder injection component 400, fine coal spray gun 410, inner nozzle 411, fine coal
Import 4111, fine coal spout 4112, fine coal clean-up port 4113, outer nozzle 412, cooling chamber 4121, cooling air inlet 4122, cooling
Gas blowout mouth 4123, sealing element 413, wear-resistant liner 414, air gun 420, air intlet 4211, air port 4212, impurity are clear
Manage mouth 4213.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the side-blown submerged combustion for describing blowing oxygen-enriched air and fine coal according to an embodiment of the present invention is molten
Pond smelting apparatus 1.
As Figure 1-Figure 4, the side-blown submerged combustion molten bath of blowing oxygen-enriched air and fine coal according to an embodiment of the present invention
Smelting apparatus 1 includes smelting furnace 100, fine coal delivery pipe 200, air delivery pipe 300 and coal powder injection component 400.
Fine coal delivery pipe 200 is for conveying fine coal.Air delivery pipe 300 is for conveying oxygen-enriched air and being connected to gas source.
Multiple coal powder injection components 400 are spaced on the opposite two sidewalls of smelting furnace 100 respectively to be arranged, and one of each coal powder injection component 400
Divide and protrude into smelting furnace 100, each coal powder injection component 400 includes the fine coal spray gun 410 and air gun 420 of Adjacent pairs setting, often
A fine coal spray gun 410 is connected to fine coal delivery pipe 200, and each air gun 420 is connected to air delivery pipe 300.Each
Coal powder injection component 400 is extending at least partially into smelting furnace 100.Need exist for understanding is that " Adjacent pairs " refer to each fine coal spray gun 410
It is disposed adjacent with its pairs of air gun 420, is not necessarily referring to two fine coal spray guns 410 and two 420 phases of air gun
Neighbour's setting.
The side-blown submerged combustion bath smelting device 1 of blowing oxygen-enriched air and fine coal according to an embodiment of the present invention, passes through
Multiple coal powder injection components 400 are set, can use multiple coal powder injection components 400 pulverized coal injection and air into smelting furnace 100, thus real
Fine coal and air are now uniformly conveyed into smelting furnace 100, and since coal powder injection component 400 includes the fine coal spray gun being disposed adjacent
410 and air gun 420, each fine coal spray gun 410 be connected to fine coal delivery pipe 200, each air gun 420 is and air
Delivery pipe 300 is connected to, and can use fine coal spray gun 410 and air gun 420 distinguishes pulverized coal injection and air.It can make powder in this way
Coal and air are just mixed in smelting furnace 100, and fine coal and air is avoided to be mixed in coal powder injection component 400.Thus may be used
To improve the oxygen content in the conveyed air of air gun 420, convenient for improving the bed energy of side-blown submerged combustion bath smelting device 1
Rate and the thermal efficiency make side-blown submerged combustion bath smelting to improve the production efficiency of side-blown submerged combustion bath smelting device 1
Device 1 can carry out large-scale industrial production by fuel of fine coal.
Also, since side-blown submerged combustion bath smelting device 1 can not only be reduced side-blown using fine coal as fuel
The operating cost of submerged combustion bath smelting device 1, and side-blown submerged combustion bath smelting device 1 can be enable to be suitable for
The area of gaseous fuel scarcity, to improve the applicability of side-blown submerged combustion bath smelting device 1.
In addition, when part fine coal spray gun 410 is worn wherein, can use remaining by the way that multiple coal powder injection components 400 are arranged
Fine coal spray gun 410 continues to convey fine coal, restores to use after fine coal spray gun 410 of the proper moment to abrasion carries out centralized maintenance,
Blowing out soaking time can be reduced in this way, avoided and frequently interrupted 1 normal operation of smelting apparatus, further increase smelting apparatus 1
Production efficiency.
Further, since fine coal and air pass through fine coal spray gun 410 respectively and air gun 420 is conveyed, once
Blocking or damaged occurs for fine coal spray gun 410, will not influence the conveying of air in air gun 420, compared to using in the related technology
The mode of multilevel access spray gun can accomplish the conveying that can guarantee oxygen-enriched air while the fine coal spray gun 410 of cleaning blocking,
Improve the safety and reliability of smelting apparatus 1.And under the fine coal and the identical situation of jetting pressure for being blown identical quantity,
Since fine coal and air pass through fine coal spray gun 410 and air gun 420 is conveyed respectively, it is possible to reduce for conveying fine coal
On the one hand the quantity of fine coal spray gun 410 and pipeline can further prevent fine coal blocking pipeline and fine coal spray gun 410, another party
Face can reduce the cost of smelting apparatus 1.
Therefore, side-blown submerged combustion bath smelting device 1 according to an embodiment of the present invention can have using fine coal as fuel
Have the advantages that high production efficiency, operating cost are low, applicability is wide.
Below with reference to the accompanying drawings the side-blown submerged combustion bath smelting device 1 of specific embodiment according to the present invention is described.
In some embodiments of the invention, as Figure 1-Figure 4, side-blown submergence combustion according to an embodiment of the present invention
Scorification pond smelting apparatus 1 includes smelting furnace 100, fine coal delivery pipe 200, air delivery pipe 300 and coal powder injection component 400.Wherein, institute
Oxygen-enriched air can be conveyed into air delivery pipe 300 by stating gas source.
Fig. 1 shows side-blown submerged combustion bath smelting device 1 accord to a specific embodiment of that present invention.Such as Fig. 1 institute
Showing, the one fine coal spray gun 410 and another fine coal spray gun 410 in two coal powder injection components 400 relative to each other are opposite, and
One air gun 420 and another air gun 420 in two coal powder injection components 400 relative to each other is opposite.In this way
The fine coal being blown into smelting furnace 100 and air can be made to be uniformly distributed, so that fine coal being capable of full combustion.
Fig. 2 shows the side-blown submerged combustion bath smelting devices 1 of another specific embodiment according to the present invention.Such as Fig. 2
Shown, the one fine coal spray gun 410 and another air gun 420 in two coal powder injection components 400 relative to each other are opposite,
And one air gun 420 in two coal powder injection components 400 relative to each other is opposite with another fine coal spray gun 410.This
Sample equally can be such that the fine coal being blown into smelting furnace 100 and air is uniformly distributed, so that fine coal being capable of full combustion.
Optionally, as depicted in figs. 1 and 2, multiple fine coal spray guns 410 protrude into the part of smelting furnace 100 equal length and
It is 50-200 millimeters.Pulverized coal friring not only can be made more abundant, and smelting apparatus 1 can be made to reach optimal combustion
Effect is burnt, in order to improve the production efficiency of side-blown submerged combustion bath smelting device 1.
Further, as depicted in figs. 1 and 2, multiple air guns 420 protrude into the equal length of the part of smelting furnace 100
It and is 50-100 millimeters.Pulverized coal friring not only can be made more abundant, and smelting apparatus 1 can be made to reach optimal
Combustion efficiency, in order to improve the production efficiency of side-blown submerged combustion bath smelting device 1.
Advantageously, as depicted in figs. 1 and 2, each fine coal spray gun 410 and each air gun 420 protrude into smelting furnace 100
Partial equal length.It can enable the fine coal being blown into smelting furnace 100 by fine coal spray gun 410 and adjacent thereto in this way
Air gun 420 spray into air be sufficiently mixed, to enable fine coal full combustion.
Specifically, as depicted in figs. 1 and 2, between the fine coal spray gun 410 and air gun 420 in multiple coal powder injection components 400
Be equidistant.The burning in smelting furnace 1 can be made more abundant in this way, keep the temperature in smelting furnace 1 more uniform.
More specifically, each fine coal spray gun 410 is equal with height of each air gun 420 on smelting furnace 100.This
Sample can sufficiently stir in order to control the height of bath surface in side-blown submerged combustion bath smelting device convenient for the gas of penetrating
Molten bath.
Wherein, as depicted in figs. 1 and 2, side-blown submerged combustion bath smelting device 1 further includes fine coal distributor 210, multiple
Fine coal spray gun 410 is connected to by fine coal distributor 210 with fine coal delivery pipe 200.It is possible thereby to make to be delivered to each fine coal spray gun
Fine coal uniformity at 410, with guarantee being capable of homogenous combustion in smelting furnace 100.
Fig. 3 and Fig. 4 shows the side-blown submerged combustion bath smelting device 1 of some specific embodiments according to the present invention.Such as
Shown in Fig. 3, fine coal spray gun 410 includes inner nozzle 411, outer nozzle 412, sealing element 413 and wear-resistant liner 414.On inner nozzle 411
With fine coal import 4111, fine coal spout 4112 and fine coal clean-up port 4113.Outer nozzle 412 be set on inner nozzle 411 and with
Inner nozzle 411 limits cooling chamber 4121 jointly, has the cooling air inlet 4122 being connected to cooling chamber 4121 on outer nozzle 412
With cooling air spout 4123.Sealing element 413 is in the closed position for blocking fine coal clean-up port 4113 and opens the fine coal clean-up port
It is movably arranged between 4113 open position on inner nozzle 411.Wear-resistant liner 414 is located on the inner peripheral surface of inner nozzle 411.
Fine coal clean-up port 4113 can be blocked using sealing element 413 when fine coal spray gun 410 is worked normally in this way, prevent fine coal from passing through
Fine coal clean-up port 4113, and sealing element 413 can be moved to the open position when needing to clear up inner nozzle 411, with
Inner nozzle 411 is cleared up by fine coal clean-up port 4113, prevents fine coal from blocking inner nozzle 411, what guarantee fine coal conveyed can
By property.
Smelting apparatus in the background technique needs to temporarily cease the work of smelting apparatus when replacing fine coal spray gun, will
The bath surface of smelting apparatus is reduced under the height of fine coal spray gun, seriously affects operating rate.And it is blown oxygen-enriched air and powder
The fine coal spray gun 410 of the side-blown submerged combustion bath smelting device 1 of coal is cleared up by fine coal clean-up port 4113, does not need to drop
The liquid level of low smelting apparatus 1 can make smelting apparatus 1 without stopping work, to guarantee the production efficiency of smelting apparatus 1,
It realizes using coal dust as the large-scale industrial production of raw material.
In addition, can use cooling air by setting cooling chamber 4121 and outer nozzle 412 and inner nozzle 411 are cooled down,
The portion temperature for preventing fine coal spray gun 410 from protruding into smelting furnace 100 is excessively high, to prevent fine coal spray gun 410 since temperature is excessively high and
Damage extends the service life of fine coal spray gun 410.It can prevent inner nozzle 411 from wearing by the way that wear-resistant liner 414 is arranged,
It is reduced when conveying fine coal using fine coal spray gun 410 since fine coal washes away inner wall to abrasion caused by inner nozzle 411, extension fine coal
The service life of spray gun 410.
Specifically, can use unplugged fine coal spray gun 410 when part fine coal spray gun 410 blocks and continue
It maintains smelting apparatus 1 to work normally, powder can be restored after being cleared up in time by fine coal clean-up port 4113 fine coal spray gun 410
The work of coal spray gun 410.It can use fine coal distributor 210 in cleaning and the fine coal spray gun 410 of pulverized coal injection be switched to spray
Nitrogen blowing improves the operating environment of operator in order to which operator clears up.
Optionally, wear-resistant liner 414 can be ceramic-lined, and the cooling air can be nitrogen.
Specifically, as shown in figure 4, air gun 420 includes inner nozzle 411, outer nozzle 412 and sealing element 413.Inner nozzle
There is air intlet 4211, air port 4212 and impurity clean-up port 4213 on 411.Outer nozzle 412 is set on inner nozzle 411
And cooling chamber 4121 is limited jointly with inner nozzle 411, there is the cooling air inlet being connected to cooling chamber 4121 on outer nozzle 412
4122 and cooling air spout 4123.Sealing element 413 is in the closed position for blocking impurity clean-up port 4213 and opens impurity clean-up port
It is movably arranged between 4213 open position on inner nozzle 411.It can be utilized in this way when air gun 420 works normally
Sealing element 413 blocks impurity clean-up port 4213, prevents air from by impurity clean-up port 4213, and can be in needing to clear up
When jet pipe 411, sealing element 413 is moved to the open position, to carry out clearly by impurity clean-up port 4213 to inner nozzle 411
Reason prevents impurity from blocking inner nozzle 411, guarantees the reliability of air delivery.In addition, passing through setting cooling chamber 4121, Ke Yili
Outer nozzle 412 and inner nozzle 411 are cooled down with cooling air, the part temperature for preventing air gun 420 from protruding into smelting furnace 100
Height is spent, to prevent air gun 420 from damaging since temperature is excessively high, extends the service life of air gun 420.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of side-blown submerged combustion bath smelting device for being blown oxygen-enriched air and fine coal characterized by comprising
Smelting furnace；
For conveying the fine coal delivery pipe of fine coal；
For conveying the air delivery pipe of oxygen-enriched air, the air delivery pipe is connected to gas source；
Multiple coal powder injection components, multiple coal powder injection components are spaced setting on the opposite two sidewalls of the smelting furnace respectively, often
A coal powder injection component include Adjacent pairs setting fine coal spray gun and air gun, each fine coal spray gun with the powder
The connection of coal delivery pipe, each air gun are connected to the air delivery pipe, and each coal powder injection component is at least partly
Protrude into the smelting furnace.
2. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, one fine coal spray gun in two coal powder injection components relative to each other is opposite with another fine coal spray gun, and that
One air gun in this two opposite coal powder injection component is opposite with another air gun.
3. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, one fine coal spray gun in two coal powder injection components relative to each other is opposite with another air gun, and that
One air gun in this two opposite coal powder injection component is opposite with another fine coal spray gun.
4. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, multiple fine coal spray guns protrude into the equal length of the part of the smelting furnace and are 50-200 millimeters.
5. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, multiple air guns protrude into the equal length of the part of the smelting furnace and are 50-100 millimeters.
6. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, each fine coal spray gun and each air gun protrude into the equal length of the part of the smelting furnace.
7. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, the distance between described fine coal spray gun and the air gun in multiple coal powder injection components are equal.
8. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, each fine coal spray gun and height of each air gun on the smelting furnace are equal.
9. the side-blown submerged combustion bath smelting device of blowing oxygen-enriched air and fine coal according to claim 1, feature
It is, further includes fine coal distributor, multiple fine coal spray guns is connected to by the fine coal distributor with the fine coal delivery pipe.
10. the side-blown submerged combustion bath smelting of blowing oxygen-enriched air and fine coal according to claim 1 to 9
Device, which is characterized in that the fine coal spray gun includes:
Inner nozzle has fine coal import, fine coal spout and fine coal clean-up port on the inner nozzle；
Outer nozzle, the outer nozzle is set on the inner nozzle and limits cooling chamber jointly with the inner nozzle, described outer
There is the cooling air inlet being connected to the cooling chamber and cooling air spout on jet pipe；
Sealing element, the sealing element are located on the inner nozzle, and can blocked the closed position of the fine coal clean-up port and beaten
It opens and is moved between the open position of the fine coal clean-up port；
Wear-resistant liner, the wear-resistant liner are located on the inner peripheral surface of the inner nozzle.
11. the side-blown submerged combustion bath smelting of blowing oxygen-enriched air and fine coal according to claim 1 to 9
Device, which is characterized in that the air gun includes:
Inner nozzle has air intlet, air port and impurity clean-up port on the inner nozzle；
Outer nozzle, the outer nozzle is set on the inner nozzle and limits cooling chamber jointly with the inner nozzle, described outer
There is the cooling air inlet being connected to the cooling chamber and cooling air spout on jet pipe；
Sealing element, the sealing element are located on the inner nozzle, and can blocked the closed position of the impurity clean-up port and beaten
It opens and is moved between the open position of the impurity clean-up port.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321896.2A CN105823334B (en) | 2016-05-16 | 2016-05-16 | It is blown the side-blown submerged combustion bath smelting device of oxygen-enriched air and fine coal |
| PCT/CN2017/078653 WO2017197985A1 (en) | 2016-05-16 | 2017-03-29 | Side-submerged combustion smelting apparatus for spraying oxygen-enriched air and pulverized coal |
| AU2017266791A AU2017266791B2 (en) | 2016-05-16 | 2017-03-29 | Side-submerged combustion smelting apparatus for spraying oxygen-enriched air and pulverized coal |
| RU2018143336A RU2710084C1 (en) | 2016-05-16 | 2017-03-29 | Melting unit with side submersible combustion of pulverized coal and oxygen enriched air |
| EP17798549.6A EP3460371B1 (en) | 2016-05-16 | 2017-03-29 | Side-submerged combustion smelting apparatus for spraying oxygen-enriched air and pulverized coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321896.2A CN105823334B (en) | 2016-05-16 | 2016-05-16 | It is blown the side-blown submerged combustion bath smelting device of oxygen-enriched air and fine coal |
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| Publication Number | Publication Date |
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| CN105823334A CN105823334A (en) | 2016-08-03 |
| CN105823334B true CN105823334B (en) | 2018-12-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017197985A1 (en) * | 2016-05-16 | 2017-11-23 | 中国恩菲工程技术有限公司 | Side-submerged combustion smelting apparatus for spraying oxygen-enriched air and pulverized coal |
| CN109813103A (en) * | 2017-11-22 | 2019-05-28 | 中国瑞林工程技术股份有限公司 | Tuyere device and its application for side-blown converter |
| CN108204742A (en) * | 2018-01-31 | 2018-06-26 | 中国恩菲工程技术有限公司 | Electromagnetism submerged combustion smelting device |
| CN108332557B (en) * | 2018-03-13 | 2024-03-15 | 中国恩菲工程技术有限公司 | Smelting furnace and smelting method using smelting furnace |
| CN108253788B (en) * | 2018-03-13 | 2024-01-05 | 中国恩菲工程技术有限公司 | Metallurgical furnace |
| CN108225019B (en) * | 2018-03-21 | 2024-01-12 | 中国恩菲工程技术有限公司 | Side-blowing furnace |
| CN109210936B (en) * | 2018-10-18 | 2019-09-20 | 江苏新春兴再生资源有限责任公司 | A kind of side-blown spray gun and application method of smelting furnace |
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| CN205843366U (en) * | 2016-05-16 | 2016-12-28 | 中国恩菲工程技术有限公司 | Winding-up oxygen-enriched air and the side-blown submerged combustion bath smelting device of fine coal |
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| IT1318121B1 (en) * | 2000-07-04 | 2003-07-23 | Elti Srl | INJECTION LANCE, PARTICULARLY FOR THE INJECTION OF DUST OR PARTICULATE SUBSTANCES, INSIDE ELECTRIC OVENS FOR THE |
| CN200974858Y (en) * | 2006-11-15 | 2007-11-14 | 中国恩菲工程技术有限公司 | Oxygen gun device for oxygen bottom-blowing smelting furnace |
| CN101929802B (en) * | 2009-06-25 | 2012-09-05 | 中国恩菲工程技术有限公司 | Side-blown spray gun |
| CN105483393B (en) * | 2015-11-25 | 2017-11-21 | 中国恩菲工程技术有限公司 | A kind of method that reviver is handled using the side-blown fusion reducing furnace of modified |
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