CN104073655B - Tin smelting technique by continuous side blowing - Google Patents
Tin smelting technique by continuous side blowing Download PDFInfo
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- CN104073655B CN104073655B CN201410295163.7A CN201410295163A CN104073655B CN 104073655 B CN104073655 B CN 104073655B CN 201410295163 A CN201410295163 A CN 201410295163A CN 104073655 B CN104073655 B CN 104073655B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B25/00—Obtaining tin
- C22B25/02—Obtaining tin by dry processes
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Abstract
The invention relates to a tin smelting technique by continuous side blowing. The technique comprises the following steps: adding a stannous material into a smelting zone; spraying a first oxygen-containing gas and a first fuel into the part of a smelting bath at the smelting zone from the side of the smelting zone by using a smelting zone side-blown spray gun, thereby smelting the stannous material and obtaining first crude tin and tin-rich slag; adding a reducer into a reduction zone; spraying a second oxygen-containing gas and a second fuel into the part of the smelting bath at the reduction zone from the side of the reduction zone by using a reduction zone side-blown spray gun, thereby reducing the tin-rich slag which flows from the smelting zone to the reduction zone, and obtaining second crude tin and slag, wherein the second crude tin flows from the reduction zone to the smelting zone; discharging the first crude tin and second crude tin via a tin discharge port; and discontinuously discharging the slag via the slag discharge port. The technique provided by the embodiment of the invention has the advantages of simple process, low energy consumption, high environment-friendliness, high automation degree and the like.
Description
Technical field
The present invention relates to a kind of continuous side-blown tin-making process.
Background technology
The technology of tin metallurgy has Tin concentrate reverberatory smelting technique, electro-smelting technique, Ausmelt smelting technology, blast furnace
Smelting technology, rotary furnace smelting technique, Kaldo Furnace tin-making process.Rotary furnace smelting technique is because investment, management and maintenance cost are high, cigarette
Large-minded, direct yield is low to be eliminated already.Kaldo Furnace device structure is complicated, and maintenance cost is high, and the stove longevity is short, refractory consumption rate
Greatly.Reverberatory furnace, due to shortcomings such as its production efficiency are low, the thermal efficiency is low, fuel consumption is big, labor intensity is big, is reinforced the most rapidly molten
Smelting method is replaced.The shortcoming power consumption of electric furnace tin-smelting is the highest, is only suitable for processing low ferrum material；Blast furnace smelting process requires material
The shortcomings such as needing to pelletize or briquetting, consume expensive metallurgical coke, furnace atmosphere is difficult to control, and the volatility of stannum is high, the most no longer make
With.Ausmelt melting belongs to strengthening molten pool melting technology, segmentation operation, the stanniferous reduced levels of being down to of slag, but investment is big, safeguards
Costly, and operation complexity.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention
One purpose is to propose a kind of have that technique is simple, energy consumption is low, the feature of environmental protection is high, automaticity advantages of higher the most side-blown
Tin-making process.
A kind of continuous side-blown tin-making process utilizing continuous side-blown tin metallurgy device to implement is proposed according to embodiments of the present invention.
Described continuous side-blown tin metallurgy device includes: reacting furnace, has furnace chamber in described reacting furnace, the bottom tool of described furnace chamber
Have the molten bath for accommodating slag and tin liquor, be provided with partition wall in described furnace chamber and described partition wall extend into described molten bath in so that by institute
Stating furnace chamber and be divided into smelting zone and reducing zone, the molten bath of described smelting zone connects with the molten bath of described reducing zone, described smelting zone
Wall is provided with smelting zone charge door and puts Xi Kou, and the wall of described reducing zone is provided with reducing agent and adds entrance and slag tap, described stove
The roof in chamber is provided with the outlet flue connected with each of which in described smelting zone and described reducing zone；The side-blown spray in smelting zone
Rifle, described smelting zone side-blown spray gun is located on the sidewall of described smelting zone the first oxygen-containing gas and the first fuel-side to be blown to
The part being positioned at described smelting zone in described molten bath；With reducing zone side-blown spray gun, described reducing zone side-blown spray gun is located at described
The second oxygen-containing gas and the second fuel-side to be blown to the portion being positioned at described reducing zone in described molten bath on the sidewall of reducing zone
In point；
Described continuous side-blown tin-making process comprises the following steps: joined in described smelting zone by stanniferous material；Utilize institute
State smelting zone side-blown spray gun and spray into first from the side of described smelting zone to the part being positioned at described smelting zone in described molten bath
Oxygen-containing gas and the first fuel, in order to stanniferous material is carried out melting and obtains the first thick stannum and hardhead；Reducing agent is added
In described reducing zone；Utilize described reducing zone side-blown spray gun from the side of described reducing zone to described molten bath be positioned at described also
The second oxygen-containing gas and the second fuel is sprayed into, in order to the Fu Xi flowing to described reducing zone from described smelting zone in the part in former district
Slag carries out reducing and obtaining the second thick stannum and slag, and the described second thick stannum flows to described smelting zone from described reducing zone；Put from described
Xi Kou discharges the described first thick stannum and the described second thick stannum；Described slag is discharged discontinuously with from described slag tap.
Continuous side-blown tin-making process according to embodiments of the present invention has that technique is simple, energy consumption is low, the feature of environmental protection is high, automatization
Degree advantages of higher.
According to one embodiment of present invention, described continuous side-blown tin-making process farther includes the side from described reducing zone
Towards described molten bath the part being positioned at described reducing zone top conveying air, in order to burning reduction produce flue gas in can
Combustion thing.
According to one embodiment of present invention, described continuous side-blown tin-making process farther includes: utilize waste heat boiler to return
Receive the heat in the flue gas of the heat in the flue gas that melting produces and reduction generation；Reclaim what melting produced with utilizing dust-precipitator
Stanniferous flue dust in flue gas and the stanniferous flue dust in the flue gas of reduction generation, then join described smelting zone by stanniferous flue dust
In.
According to one embodiment of present invention, the volumetric concentration of the oxygen of described first oxygen-containing gas is 24%-60%, institute
The volumetric concentration of the oxygen stating the second oxygen-containing gas is 24%-60%.
According to one embodiment of present invention, described first fuel is selected from fine coal, natural gas, coke-stove gas and producer coal
At least one in gas, at least one in fine coal, natural gas, coke-stove gas and producer gas of described second fuel.
According to one embodiment of present invention, described reducing agent is beans.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is the sectional view of continuous side-blown tin metallurgy device according to embodiments of the present invention；
Fig. 2 is the flow chart of continual lead smelting technique according to embodiments of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Being not only the change of Burners Positions in metallurgical technology field, top blast and side-blown difference, what the two reacted has been
The most different smelting equipments and technique.Such as, in steelmaking technical field, initial is all bottom blowing steel-making, but developed later
Top blast steel-making is initiative invention, is diverse technology with bottom blowing, and this is not simply from bottom blowing, spray gun to be become top
Blow, but embody different methods and condition, be the diverse two class type of furnace and techniques.
In metallurgical technology field, use top blast technology still to use side-blown technology, the kinetics bar of melt in stove can be caused
Part, Melt Stirring state and reaction mechanism (reaction sequence) are different.
More specifically, existing stannum smelting technique is all based on the process of oxidizing semlting, reduction melting.But, in reality
Trample concrete use what equipment to realize oxidizing semlting, reduction melting is problem most crucial in through engineering approaches application.To equipment
Different choice determine the different technologies route (i.e. technique) realizing oxidizing semlting, reduction melting process, technology path will be certainly
Fixed industrialized reliability, exploitativeness and the advance of technical specification.And the selection of position of jetting (the i.e. installation position of spray gun
Put) it is then one of problem most basic, most crucial in equipment choice, equipment design.When have selected side-blown or top blast, its smelting sets
Standby (type of furnace) version, spray gun structure, layout are diverse.
To those skilled in the art, no matter there is what technical problem, nothing in the smelting device of a kind of basic forming
Which kind of opinion carries out to it and improves, and this improvement is impossible to change the selection of its winding-up position.Therefore, for people in the art
For Yuan, the change of Burners Positions be not one conventional, obviously select.
And, each metallic element has physical property and the chemical property of uniqueness.Therefore, a kind of metal is smelted
Device and technique are without performing creative labour (change), it is impossible to be used for smelting another kind of metal.Such as, smelt stannum device and
Technique is totally different from device and the technique smelting lead.It is to say, without performing creative labour (change), it is impossible to utilize smelting
Device and the technique of refining lead smelt stannum.
Below with reference to Fig. 1, continuous side-blown tin metallurgy device 10 according to embodiments of the present invention is described.As it is shown in figure 1, according to this
The continuous side-blown tin metallurgy device 10 of inventive embodiments includes reacting furnace 101, smelting zone side-blown spray gun 103 and reducing zone side-blown spray gun
104。
Having furnace chamber 1011 in reacting furnace 101, the bottom of furnace chamber 1011 has the molten bath for accommodating slag and tin liquor, furnace chamber
Be provided with partition wall 102 in 1011 and partition wall 102 extend into molten bath in so that furnace chamber 1011 is divided into smelting zone 10111 and reducing zone
10112, the molten bath of smelting zone 10111 connects with the molten bath of reducing zone 10112.The wall of smelting zone 10111 is provided with smelting zone and adds
Expecting mouth 10113 and put stannum mouth 10114, the wall of reducing zone 10112 is provided with reducing agent and adds entrance 10115 and slag tap 10119, stove
The roof in chamber 1011 is provided with the outlet flue connected with each of which in smelting zone 10111 and reducing zone 10112.
Smelting zone side-blown spray gun 103 is located on the sidewall of smelting zone 10111 so that by the first oxygen-containing gas and the first fuel
The side-blown part being positioned at smelting zone 10111 to molten bath, reducing zone side-blown spray gun 104 is located on the sidewall of reducing zone 10112
The second oxygen-containing gas and the second fuel-side to be blown to the part being positioned at reducing zone 10112 in molten bath.
Below with reference to Fig. 2, the most side-blown of utilization continuous side-blown tin metallurgy device 10 enforcement according to embodiments of the present invention is described
Tin-making process.As in figure 2 it is shown, continuous side-blown tin-making process according to embodiments of the present invention comprises the following steps:
Stanniferous material is joined in smelting zone 10111；
Smelting zone side-blown spray gun 103 is utilized to be positioned at smelting zone 10111 to described molten bath from the side of smelting zone 10111
The first oxygen-containing gas and the first fuel is sprayed into, in order to stanniferous material is carried out melting and obtains the first thick stannum and Fu Xi in part
Slag；
Reducing agent is joined in reducing zone 10112；
Reducing zone side-blown spray gun 104 is utilized to be positioned at reducing zone 10112 to described molten bath from the side of reducing zone 10112
The second oxygen-containing gas and the second fuel is sprayed into, in order to the hardhead flowing to reducing zone 10112 from smelting zone 10111 is entered in part
Row reduction also obtains the second thick stannum and slag, and the described second thick stannum flows to smelting zone 10111 from reducing zone 10112；
The described first thick stannum and the described second thick stannum is discharged from putting stannum mouth 10114；With
Described slag is discharged discontinuously from described slag tap.
Continuous side-blown tin metallurgy device 10 according to embodiments of the present invention passes through to arrange partition wall 102 in furnace chamber 1011, thus
Furnace chamber 1011 can be divided into smelting zone 10111 and reducing zone 10112, in order to can be at single continuous side-blown tin metallurgy device 10
Inside it is capable of melting and reduction, i.e. in the continuous side-blown tin metallurgy device 10 of single closing, achieves continuous tin metallurgy, the closeest
Sealing property is good, and the feature of environmental protection is high.Thus it is possible not only to utilize fully the heat content of slag, has only to disappear when reducing described hardhead
Consume less fuel and carry out additional heat, and can greatly shorten the flow process smelting stannum, simplify continuous side-blown tin-making process.
Be additionally, since take side-blown, therefore side-blown in reducing zone 10112 fuel and the second oxygen-containing gas and furnace roof
The carbonaceous reducing agent added is reduced directly out thick stannum, and in slag, stanniferous amount reduces further, then send fuming furnace sulfiding volatilization to enter one
Step dilution processes.Additionally, due to partition wall 102 extend in described molten bath, i.e. partition wall 102 extend into below the liquid level L1 of slag, because of
This can make the gas in smelting zone 10111 separate with the gas in reducing zone 10112, the flue gas of smelting zone 10111 and reduction
The flue gas in district 10112 will not mix, it is achieved melting and reduction continuous smelting..
Therefore, continuous side-blown tin metallurgy device 10 according to embodiments of the present invention has that energy consumption is low, good seal performance, the feature of environmental protection
The advantages such as height, simple in construction, easy operation.
Continuous side-blown tin-making process according to embodiments of the present invention has that technique is simple, energy consumption is low, the feature of environmental protection is high, automatization
Degree advantages of higher.
Specifically, described molten bath includes being positioned at the part of smelting zone 10111 and being positioned at the part of reducing zone 10112.
As it is shown in figure 1, in one embodiment of the invention, the lower surface of partition wall 102 and the diapire interval of furnace chamber 1011
Open, and between the diapire of the lower surface of partition wall 102 and furnace chamber 1011, form communicating passage 10117.
In another embodiment of the present invention, partition wall 102 is connected with the diapire of furnace chamber 1011, partition wall 102 company of being provided with
Circulation passage 10117.
Described hardhead can flow in reducing zone 10112 from smelting zone 10111 by communicating passage 10117, and described the
Two thick stannum can be flowed in smelting zone 10111 from reducing zone 10112 by communicating passage 10117.
As it is shown in figure 1, in described molten bath, L1 is the liquid level of slag, L2 is the liquid level of thick stannum.Described molten bath be positioned at melting
Part in district 10111 accommodates described hardhead, after the part receiving being positioned at reducing zone 10112 in described molten bath is reduced
Slag (the stanniferous amount of described slag is less than or equal to 3-5wt%).
As it is shown in figure 1, in a concrete example of the present invention, reacting furnace 101 can be horizontal chamber furnace (oven).Specifically, reaction
Stove 101 can be the fixing horizontal chamber furnace (oven) of long ellipse shape.The diapire of furnace chamber 1011 can be recessed arc.
Described outlet flue can include smelting zone outlet flue 10118 and reducing zone outlet flue 10116.Smelting zone charge door
10113 and smelting zone outlet flue 10118 can be located on the roof of smelting zone 10111, reducing agent add entrance 10115 and reduction
District's outlet flue 10116 can be located on the roof of reducing zone 10112.Thus can make the structure of continuous side-blown tin metallurgy device 10
More reasonable.
Put stannum mouth 10114 to be located on the sidewall of smelting zone 10111 and put stannum mouth 10114 and may be located remotely from partition wall 102, institute
State slag tap can be located on the end wall of reducing zone 10112.Thus can make the structure more adduction of continuous side-blown tin metallurgy device 10
Reason.Advantageously, putting stannum mouth 10114 can be adjacent to the diapire of reacting furnace 101.
Smelting zone gun slot can be provided with on the sidewall of smelting zone 10111, the sidewall of reducing zone 10112 can be provided with also
Former district gun slot.Wherein, smelting zone side-blown spray gun 103 can be located in the gun slot of described smelting zone and the side-blown spray in described reducing zone
Rifle 104 can be located in the gun slot of described reducing zone.
Specifically, the end of smelting zone side-blown spray gun 103 may be located in the gun slot of described smelting zone, and smelting zone is side-blown
Described smelting zone gun slot, the i.e. end of smelting zone side-blown spray gun 103 can also be stretched out in the end of spray gun 103 can extend into stove
In chamber 1011.The end of reducing zone side-blown spray gun 104 may be located in the gun slot of described reducing zone, reducing zone side-blown spray gun 104
End can also stretch out described reducing zone gun slot, the i.e. end of reducing zone side-blown spray gun 104 and can extend into furnace chamber 1011
In.
As it is shown in figure 1, more specifically, the first oxygen-containing gas and the first fuel can be sprayed by smelting zone side-blown spray gun 103
Enter on the liquid level L2 of the thick stannum of smelting zone 10111 and under the liquid level L1 of described hardhead.In other words, smelting zone is side-blown
First oxygen-containing gas and the first fuel can be injected in the lead-rich slag in smelting zone 10111 by spray gun 103.
Second oxygen-containing gas and the second fuel can be injected to the thick stannum of reducing zone 10112 by reducing zone side-blown spray gun 104
Liquid level L2 on and the liquid level L1 of slag under.In other words, reducing zone side-blown spray gun 104 can be by the second oxygen-containing gas and
Two fuel are injected in the slag in reducing zone 10112, thus in reducing zone 10112, reducing zone side-blown spray gun 104 spray into
Two oxygen-containing gas and the second fuel will not aoxidize the lead bullion restored repeatedly.
As it is shown in figure 1, in an example of the present invention, smelting zone side-blown spray gun 103 can be multiple, multiple smelting zones
Side-blown spray gun 103 can be located on the sidewall of smelting zone 10111 at interval along the length direction of reacting furnace 101, side, reducing zone
It can be multiple for blowing and spraying rifle 104, and multiple reducing zones side-blown spray gun 104 can set at interval along the length direction of reacting furnace 101
On the sidewall of reducing zone 10112.The structure that thus can make continuous side-blown tin metallurgy device 10 is more reasonable.Wherein, reacting furnace
The length direction of 101 is as shown in the arrow A in Fig. 1.
Stanniferous material (such as Tin concentrate) joins in smelting zone 10111 from smelting zone charge door 10113, passes through smelting zone
The first oxygen-containing gas and the first fuel that side-blown spray gun 103 sprays into carry out melting to stanniferous material and obtain thick stannum and hardhead.Molten
Hardhead in refining district 10111 is flowed in reducing zone 10112 from communicating passage 10117.Entrance 10115 is added to also from reducing agent
Add reducing agent in former district 10112 stannum in hardhead is reduced, and by reducing zone side-blown spray gun 104 to reducing zone
The second oxygen-containing gas and the second fuel is sprayed into, in order to maintain and improve the temperature of reducing zone 10112 in slag in 10112.
It is to be appreciated that by controlling straying quatity, the part of fuel that reducing zone side-blown spray gun 104 sprays into can also conduct
Reducing agent reduces hardhead together with the reducing agent of addition simultaneously.
The volumetric concentration of the oxygen of described first oxygen-containing gas is 24%-60%.It is to say, described first oxygen-containing gas
Oxygen content be 24v%-60v%.Thus preferably stanniferous material can be carried out melting.
The volumetric concentration of the oxygen of described second oxygen-containing gas is 30%-100%, the most described second oxygen-containing gas oxygen-containing
Amount is 30v%-100v%.Thus can preferably hardhead be reduced.
Described reducing agent can be beans.Those skilled in the art generally believe: utilize metallurgical coke permissible as reducing agent
Effectively hardhead is reduced.Inventor finds after in-depth study and performing creative labour: with utilize metallurgical coke
Hardhead is carried out reduction compare, utilize beans that hardhead is reduced, the Theil indices in slag can be reduced further (described
The stanniferous amount of slag is less than or equal to 3-5wt%), such that it is able to improve direct yield and the response rate of stannum further.Therefore, by utilizing
Beans, as reducing agent, overcomes technology prejudice, and can reduce cost.
Advantageously, the particle diameter of beans can be less than or equal to predetermined value.
Described first fuel can be selected from least one in fine coal, natural gas, coke-stove gas and producer gas, described
Second fuel can be selected from least one in fine coal, natural gas, coke-stove gas and producer gas.
Flux can also be added to described smelting zone and described reducing zone, described flux can be limestone, quartz or
Person's quartz and the mixture of Calx.
The described hardhead that reduces produces the second thick stannum and slag, and the described second thick stannum can be flowed into by communicating passage 10117
The part being positioned at smelting zone 10111 to described molten bath.Described first thick stannum and the described second thick stannum can be from putting Xi Kou
10114 discharge furnace chamber 1011.(the most described hardhead produces after being reduced in reducing zone 10112 slag produced in reducing zone 10112
Raw slag) periodically discharge from described slag tap.The slag produced in reducing zone 10112 can discharge once for every 1.5 hours-2 hours.
In some examples of the present invention, continuous side-blown tin metallurgy device 10 can also include waste heat boiler.Described waste heat pot
Stove can be connected with described outlet flue, in order to utilizes described waste heat boiler to reclaim the heat in the flue gas that melting produces and reduction
Heat in the flue gas produced.
Continuous side-blown tin metallurgy device 10 also includes dust-precipitator (such as bagroom), and described dust-precipitator can be remaining with described
Heat boiler is connected, in order to utilize described dust-precipitator to reclaim the stanniferous flue dust in the flue gas that melting produces and the flue gas of reduction generation
In stanniferous flue dust.
Continuous side-blown tin metallurgy device 10 may further include cooler, and described cooler can be with described waste heat boiler phase
Connect and described dust-precipitator can be connected with described cooler.
Wherein, in stanniferous flue dust can join smelting zone 10111.When starting to start continuous side-blown tin metallurgy device 10,
Owing to not producing stanniferous flue dust, therefore stanniferous material and flux can be joined in smelting zone 10111.Stanniferous cigarette to be generated
After dirt, stanniferous flue dust, stanniferous material and flux can be joined in smelting zone 10111.
Continuous side-blown tin metallurgy device 10 according to embodiments of the present invention can realize continuous tin metallurgy and regular deslagging.
Overfiren air port can be provided with, from described overfiren air port being positioned at also to described molten bath on the sidewall of reducing zone 10112
The top conveying air of the part in former district 10112, in order to the combustible in the flue gas that burning reduction produces.Thus can improve ring
Guaranteed cost and security performance.
Put the first draft chamber being provided with at stannum mouth 10114 for preventing stannum steam from spreading, be provided with at slag tap for preventing
Second draft chamber of stannum steam diffusion.
Continuous side-blown tin metallurgy device 10 according to embodiments of the present invention and continuous side-blown tin-making process it is a technical advantage that:
1, energy consumption is low: achieving from stannum material to the fusion process of thick stannum inside a stove, fusion process uses work
Industry oxygen (carrier of oxygen volume concentrations 30%-100%), exhaust gas volumn is few, and dust rate is low, and employing broken coal (beans) is as reducing agent, no
Need relatively costly metallurgical coke, reclaim the waste heat in melting section and reduction section flue gas simultaneously.
2, environmental protection is good: Tin concentrate fusion process is carried out in an airtight reacting furnace 101, it is to avoid flue gas escapes, stannum
Concentrate or other tin raw material directly enter stove after coordinating granulation, and material preparation process is simple, and in production process, the stannum flue dust of output is equal
Seal conveying and return dispensing, effectively prevent the disperse of stannum dirt；The flue gas of melting output, after waste heat recovery and gathering dust, send de-
Sulfur system.The thick stannum of side-blown converter melting section and reduction section output is discharged from stannum floss hole continuously, and the slag of output is from reduction section stove
Cinder notch is discharged, and sets draft chamber at stannum floss hole and slag tap simultaneously, prevents the diffusion of stannum steam.Substantially solve stannum and smelt cigarette
The problem of gas, stannum dustiness dye.
3, the response rate is high: in continuous side-blown tin metallurgy stove, owing to sufficiently make use of the heat content of slag, in continuous side-blown refining
Less for consumption fuel is carried out concurrent heating by the reduction section of stannum stove, and fusion process uses industrial oxygen, and uses broken coal as reduction
The Theil indices that agent effectively reduces exhaust gas volumn and dust rate, reduces in slag, improves direct yield and the response rate of stannum.
4, during continuous side-blown lead smelting process is all tin metallurgy methods, including material preparation system, the technique that flow process is the shortest, technique
Device is simple, reduced investment.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time
Pin ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or imply that the device of indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
These embodiments can be carried out multiple change in the case of departing from the principle of the present invention and objective, revise, replace and modification, this
The scope of invention is limited by claim and equivalent thereof.
Claims (6)
1. one kind utilizes the continuous side-blown tin-making process that continuous side-blown tin metallurgy device is implemented, it is characterised in that
Described continuous side-blown tin metallurgy device includes:
Reacting furnace, has furnace chamber in described reacting furnace, the bottom of described furnace chamber has the molten bath for accommodating slag and tin liquor, described
Be provided with partition wall in furnace chamber and described partition wall extend into described molten bath in so that described furnace chamber is divided into smelting zone and reducing zone, described
The molten bath of smelting zone connects with the molten bath of described reducing zone, and the wall of described smelting zone is provided with smelting zone charge door and puts Xi Kou,
Described Xi Kou of putting is away from described partition wall, and the wall of described reducing zone is provided with reducing agent and adds entrance and slag tap, the top of described furnace chamber
Wall is provided with the outlet flue connected with each of which in described smelting zone and described reducing zone；
Smelting zone side-blown spray gun, described smelting zone side-blown spray gun is located on the sidewall of described smelting zone so that by the first oxygen-containing gas
With the part being positioned at described smelting zone that the first fuel-side blows to described molten bath；With
Reducing zone side-blown spray gun, described reducing zone side-blown spray gun is located on the sidewall of described reducing zone so that by the second oxygen-containing gas
With the part being positioned at described reducing zone that the second fuel-side blows to described molten bath；
Described continuous side-blown tin-making process comprises the following steps:
Stanniferous material is joined in described smelting zone；
Utilize described smelting zone side-blown spray gun from the side of described smelting zone to the part being positioned at described smelting zone in described molten bath
Inside spray into the first oxygen-containing gas and the first fuel, in order to stanniferous material is carried out melting and obtains the first thick stannum and hardhead；
Reducing agent is joined in described reducing zone；
Utilize described reducing zone side-blown spray gun from the side of described reducing zone to the part being positioned at described reducing zone in described molten bath
Inside spray into the second oxygen-containing gas and the second fuel, in order to the hardhead flowing to described reducing zone from described smelting zone is reduced
And obtaining the second thick stannum and slag, the described second thick stannum flows to described smelting zone from described reducing zone；
From away from putting Xi Kou discharge the described first thick stannum and the described second thick stannum described in described partition wall；With
Described slag is discharged discontinuously from described slag tap.
Continuous side-blown tin-making process the most according to claim 1, it is characterised in that farther include from described reducing zone
Side carries air to the top of the part being positioned at described reducing zone in described molten bath, in order in the flue gas that burning reduction produces
Combustible.
Continuous side-blown tin-making process the most according to claim 1, it is characterised in that farther include:
Waste heat boiler is utilized to reclaim the heat in the flue gas of the heat in the flue gas that melting produces and reduction generation；With
Dust-precipitator is utilized to reclaim the stanniferous flue dust in the flue gas of the stanniferous flue dust in the flue gas that melting produces and reduction generation, so
After stanniferous flue dust is joined in described smelting zone.
4. according to the continuous side-blown tin-making process according to any one of claim 1-3, it is characterised in that described first oxygenous
The volumetric concentration of the oxygen of body is 24%-60%, and the volumetric concentration of the oxygen of described second oxygen-containing gas is 24%-60%.
5. according to the continuous side-blown tin-making process according to any one of claim 1-3, it is characterised in that described first fuel choosing
At least one in fine coal, natural gas, coke-stove gas and producer gas, described second fuel is selected from fine coal, natural gas, Jiao
At least one in producer gas and producer gas.
6. according to the continuous side-blown tin-making process according to any one of claim 1-3, it is characterised in that described reducing agent is grain
Coal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295163.7A CN104073655B (en) | 2014-06-25 | 2014-06-25 | Tin smelting technique by continuous side blowing |
| PCT/CN2015/079916 WO2015196887A1 (en) | 2014-06-25 | 2015-05-27 | Continuous side-blast tin smelting technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410295163.7A CN104073655B (en) | 2014-06-25 | 2014-06-25 | Tin smelting technique by continuous side blowing |
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| CN104073655B true CN104073655B (en) | 2017-01-11 |
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| WO (1) | WO2015196887A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073655B (en) * | 2014-06-25 | 2017-01-11 | 中国恩菲工程技术有限公司 | Tin smelting technique by continuous side blowing |
| WO2015196888A1 (en) * | 2014-06-25 | 2015-12-30 | 中国恩菲工程技术有限公司 | Continuous side-blast tin smelting apparatus |
| CN107201449B (en) * | 2017-06-08 | 2018-06-08 | 安徽省金鸿再生资源科技有限公司 | A kind of method of the recycling of waste residue containing slicker solder tin |
| CN110066917A (en) * | 2018-01-24 | 2019-07-30 | 中国瑞林工程技术有限公司 | The system and method for handling ferrous material |
| CN109852818A (en) * | 2019-04-02 | 2019-06-07 | 柳州光华科技有限公司 | A kind of continuous side-blown tin-making process |
| CN110172593B (en) * | 2019-06-13 | 2023-04-28 | 云南锡业股份有限公司铜业分公司 | Energy-saving and environment-friendly tin smelting system and smelting process |
| CN111500877A (en) * | 2020-06-10 | 2020-08-07 | 广东汉合有色金属有限公司 | Process method for recovering and regenerating refined tin from tin foil ash of tin foil sacrificial offerings |
| CN111663052B (en) * | 2020-07-13 | 2023-08-01 | 云南锡业股份有限公司锡业分公司 | Crude tin smelting system |
| CN113481382B (en) * | 2021-07-16 | 2023-05-16 | 云南锡业股份有限公司锡业分公司 | System and method for smelting tin-containing material |
| CN113737016B (en) * | 2021-09-18 | 2022-11-11 | 安徽华铂再生资源科技有限公司 | Process for smelting crude tin from sodium stannate solution filter-pressed solid |
| CN116147336A (en) * | 2023-04-21 | 2023-05-23 | 中国恩菲工程技术有限公司 | Sulfur-containing multi-metal solid waste smelting furnace and smelting treatment method thereof |
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| CN104073655B (en) * | 2014-06-25 | 2017-01-11 | 中国恩菲工程技术有限公司 | Tin smelting technique by continuous side blowing |
| CN203960305U (en) * | 2014-06-25 | 2014-11-26 | 中国恩菲工程技术有限公司 | Tin metallurgy device continuously blows side |
| CN104073653B (en) * | 2014-06-25 | 2017-01-18 | 中国恩菲工程技术有限公司 | Continuous lateral blowing tin smelting device |
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| CN1861818A (en) * | 2006-06-12 | 2006-11-15 | 彭明求 | Side-blown submerged smelting bath smelting process |
| CN101906540A (en) * | 2010-07-21 | 2010-12-08 | 杨龙安 | Solder splash side blowing molten pool smelting furnace cold metal direct making fuming volatilization method |
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| CN104073655A (en) | 2014-10-01 |
| WO2015196887A1 (en) | 2015-12-30 |
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