CN105755503A - Skyflash furnace - Google Patents
Skyflash furnace Download PDFInfo
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- CN105755503A CN105755503A CN201610283938.8A CN201610283938A CN105755503A CN 105755503 A CN105755503 A CN 105755503A CN 201610283938 A CN201610283938 A CN 201610283938A CN 105755503 A CN105755503 A CN 105755503A
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- China
- Prior art keywords
- reaction tower
- stove
- blown
- dodges
- molten bath
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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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0047—Smelting or converting flash smelting or converting
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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
- C22B15/00—Obtaining copper
Abstract
The invention provides a skyflash furnace.The skyflash furnace comprises a reaction tower and a feeding device for feeding materials into the reaction tower.The reaction tower is connected with a vaporizing chamber.At least one molten pool is arranged below the reaction tower, each molten pool is provided with a side-blown molten pool section with the inner width smaller than 3 meters, and side-blowing devices are arranged on the side faces of the side-blown molten pool sections.The skyflash furnace further comprises flues used for discharging smoke produced in the reaction process, and the flues are communicated with the reaction tower through the molten pools.According to the flashsky furnace, on one hand, high-concentration reducing gases can be produced in the vaporizing chamber, heat needed by space smelting can be provided, and it is guaranteed that reduction reactions of floating and falling metal oxidized ore in the reaction tower can be quickly and effectively conducted; on the other side, by means of the side-blown molten pool sections, all positions of the molten pools can be blown thoroughly, and heat is supplemented and reducing agents are provided for the molten pools so that reduction of residual metal oxide to be smelted in oxidized ore can be finished.
Description
Technical field
The invention belongs to field of metallurgy, especially relate to a kind of sky and dodge stove.
Background technology
Flash is metallurgical from invention till now, it is served only for the smelting of metal sulfide, but without the smelting being applied to oxide ore, for copper sulfurized ore flash smelting, Flash Microcontroller technique is that after concentrate burner and oxygen-enriched air are sufficiently mixed, dried powdery copper sulfide concentrate is sprayed into Flash Smelting Furnace, in pyroreaction tower, carry out thermal dissociation and oxidation reaction, make the oxidation of part ferrum slag making in copper concentrate remove, the matte that output cupric is higher.Owing to sulfide and oxygen reaction can release substantial amounts of heat, so need not be additionally molten bath additional heat again, only oxygen-containing gas need to be sprayed into.
Tradition the general sulphide ore Flash Smelting Furnace structural representation of Alto elder brother as it is shown in figure 1, generalized section as shown in Figure 2.
Traditional sulphide ore Flash Smelting Furnace is when design, the top inner width in molten bath is that the internal diameter according to reaction tower is determined, being generally reaction tower internal diameter plus 1-2 rice, the reaction tower internal diameter of existing Flash Smelting Furnace both is greater than 3 meters, namely the inner width in the molten bath of sulphide ore Flash Smelting Furnace must more than 4 meters.Conventional vulcanized ore deposit Flash Smelting Furnace schematic top plan view is as shown in Figure 3.
The conventional method of burning mining and metallurgy refining is at high temperature to adopt reducing agent reduction metal-oxide therein, thus burning ore deposit is according to flash smelting technique, then must provide reducing agent for reaction tower space and molten bath and smelt required heat, wherein, reaction tower space must be prepared in advance and smelt required temperature and reducing atmosphere, and molten bath is also required to maintain certain temperature and reducing environment.For the smelting in burning ore deposit, if continuing to use traditional metal sulfide Flash Smelting Furnace and Flash Smelting technique, then cannot provide reducing condition for mineral, namely traditional metal sulfide Flash Smelting Furnace and Flash Smelting technique cannot metal smelting oxide ores.
Summary of the invention
In view of this, it is contemplated that propose a kind of sky to dodge stove, to solve the problem that existing Flash Smelting Furnace cannot smelt oxide ore.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of sky dodges stove, including reaction tower 1 and to charging gear reinforced in described reaction tower 1, described reaction tower 1 is connected to vaporizer 5, described reaction tower 1 bottom is provided with at least one molten bath 2, each described molten bath 2 is provided with slag-drip opening, being equipped with the inner width side-blowing bath section less than 3 meters on each described molten bath 2, the side of described side-blowing bath section is provided with side-blown layout；Described sky dodges stove and also includes the flue 3 for discharging produced flue gas in course of reaction, and described flue 3 is connected with described reaction tower 1 by described molten bath 2.
Preferably, described flue 3 number is consistent with described molten bath 2 number.
Preferably, the length of described side-blowing bath section is 8-20 rice.So that melt can have sufficiently long time and distance to carry out reducing and clarified separation, to improve metal recovery rate.
Preferably, described side-blowing bath section is cuboid；Preferably, the inner width of side-blowing bath section is 1.5-2.5 rice.
Preferably, described molten bath 2 is gradually decrease to less than 3 meters to described flue 3 end inner width by described reaction tower 1 end.So that the flow velocity of melt does not have sudden change, the side-blowing bath section flowing to less than 3 meters that energy is mild.
Preferably, the inner width in described molten bath 2 is gradually decrease to less than 3 meters to far-end by described reaction tower 1 end and is not less than 1 meter.
Further, the number in described molten bath 2 is 1-4.Owing to the inner width of side-blowing bath section is less than 3 meters, the volume in single molten bath is little compared with traditional flash stove, and molten bath ability needs to smelt ability with reaction tower feed and space and matches, and can arrange multiple molten bath as required.
Further, described side-blown layout includes the side-blown hole being symmetricly set on described side-blowing bath section and the side-blown jet pipe 4 being arranged in side-blown hole.Side-blown for bath smelting offer reducing agent and heat.
Preferably, described side-blown layout position is corresponding with molten slag layer in described side-blowing bath section, to make described side-blown layout spray into material in described side-blowing bath section molten slag layer, described material is oxygen-containing gas and carbon-containing fuel, oxygen-containing gas is air, one in oxygen-air mixture or technique oxygen, carbon-containing fuel is heavy oil, natural gas, liquefied petroleum gas, coal, nut coke, one in hydrocarbon gas, side-blown to slag blanket makes the upper and lower interlayer of slag form rolling or convection current, it is easy to heat and the mass exchange of the upper and lower interlayer of slag, reduce the viscosity of the flowing of slag, improve the response rate of metal.By controlling the side-blown coal oxygen amount sprayed into and coal oxygen ratio, it is possible to the temperature in regulation and control molten bath and reducing power, the temperature making molten bath is adjustable in 1800 DEG C, forms the high temperature reduction environment that a metallurgical performance is good.
Further, described vaporizer 5 is positioned at reaction tower 1 top.Air-flow so can being made to enter sky from reaction tower 1 top and dodge stove, make entrance sky dodge the breeze in stove and reducing atmosphere has longer time of contact in sky sudden strain of a muscle stove, thus improve the percent reduction treating metal smelting oxide.Vaporizer 5 is used for dodging stove for sky and produces reducibility gas and provide space to smelt required heat.
Further, described vaporizer 5 arranges the spray gun or the jet pipe that spray into oxygen-containing gas and gas making raw material in oriented described vaporizer 5.Spray gun or jet pipe are arranged on vaporizer 5, and penetrate vaporizer 5 inwall, stretch in vaporizer 5.Spray gun or jet pipe in order to spray into oxygen-containing gas and gas making raw material such as one or more combination in coal dust, water-coal-slurry, steam, natural gas, fuel oil, methane, acetylene, methanol in vaporizer 5, in vaporizer, there is quick chemical reaction by oxygen and gas making raw material, manufacture the reducibility gas of high concentration and provide heat for reaction tower.Source and cost angle that from large-scale industrial production, fuel obtains consider, adopt oxygen and coal gasification to generate reducing gas (CO+H in China2) it is a kind of most economical scheme.Spray gun or jet pipe can be single channel or multichannel, can only a kind of raw material of winding-up, multichannel spray gun or jet pipe also can be jetted plurality of raw materials simultaneously.Air pressure in vaporizer 5 can more than or equal to the pressure of reaction tower 1, it is preferable that condition of high voltage, by building an independent High Temperature High Pressure gasification space, makes gasified raw material can be good at gasification, thus improving effective reducing gases (CO+H2) concentration.Sky of the present invention is dodged stove and is namely achieved the function of gas making and heat supply by an independent parts vaporizer, relative to existing metallurgy industry, some return again to after being reformed by tail gas as the technique smelting gas, compact conformation, technological process is simple, one-time investment is little, energy consumption is low, produces and maintenance cost is low.
Further, described charging gear is positioned on described reaction tower 1.Described charging gear is one or more in nozzle, spray gun, sealing charge door；Or it is one or more combinations with burner in nozzle, spray gun, sealing charge door.By arranging nozzle or spray gun or sealing charge door to the sky sudden strain of a muscle stove necessary raw material of addition smelting, fuel and auxiliary material, if desired, can be additional heat in reaction tower 1 space by burner.
Further, described molten bath 2 or flue 3 are provided with gas leading-in device.Gas leading-in device is spray gun or air-blast device.Top, molten bath or sidewall arrange some spray guns or air-blast device, oxygen-containing gas can be jetted if desired and burnt by the reducing gas of flue above molten bath, can be molten bath additional heat on the one hand, burn reducing gas on the other hand, reduce the follow-up vent gas treatment operation for reducing gas.Flue 3 arranges spray gun or air-blast device also has similar effect, prevent flue-gas temperature from declining on the one hand and cause flue dust felt jam flue, reducing gas can be consumed on the other hand, remove follow-up processing links from.
Further, described side-blowing bath section is positioned between slag-drip opening and reaction tower 1.So that slag discharges after the fully reduction and precipitation of side-blowing bath section again, improve the response rate treating metal smelting.
The invention also provides for a kind of method utilizing described sky sudden strain of a muscle stove to carry out smelting.
Sky described in the invention also Sustainable use dodges stove application in smelting.
Relative to prior art, sky of the present invention dodges stove and has the advantage that
Sky of the present invention dodges stove and arranges the way of vaporizer, and conventional vulcanized ore deposit Flash Smelting Furnace does not have.If adopting the way of traditional flash stove, fuel, oxygen, flux are sprayed into the reaction tower space in tiny structure together with breeze, even if being left out the interference to coal gasification course of the material such as breeze, flux, optimum when, the effective reducing gases (CO+H produced2) volume ratio of composition is not over 73%, according to metallurgical thermodynamics, under the high temperature more than 1000 DEG C, the concentration of above-mentioned reducing atmosphere is not enough to effectively reduce some metal-oxide, such as FeO and ZnO.Sky of the present invention dodges stove and fuel and oxygen is sprayed into vaporizer, generates reducing gas and heat that space melting needs in vaporizer, and the reducing gas carrying heat enters back into reaction tower space, is sufficiently mixed with breeze, completes reduction melting.By the effective gas (CO+H of reduction that vaporizer of the present invention provides for reaction tower2) component volume ratio reaches as high as 95%, temperature reaches as high as 1600 DEG C.
Vaporizer compact conformation of the present invention, the function dodging heat supply in stove, supply to sky is achieved with single equipment, to return again to after tail gas reformation as the metallurgical technology smelting gas relative to more existing at present, avoid high-temperature gas thermal loss in distance transport process and to the loss of transmission pipeline (conveying of the high-temperature tail gas of more than 1000 DEG C is higher to the requirement of pipeline material, piping cost is high, the life-span short)；Simultaneously as do not need auxiliary device (such as tail gas cracking converting apparatus, gas pressurized conveying equipment etc.), greatly reduce one-time investment, also make the fault rate of complete equipment greatly reduce, thus reducing equipment cost and maintenance cost；In addition, vaporizer gas making principle of the present invention is simple, gas making raw material (such as coal dust) and oxygen is used to carry out simple chemical reaction and can realize, without by the mode of other complex and expensive (as plasma electric from etc.) carry out gas making or gas converts, greatly reduce production and use cost.Vaporizer of the present invention achieves the miniaturization of equipment, lightweight, invests little, maintenance and use cost is low, take full advantage of the heat that gasification produces, energy-saving and cost-reducing.
Sky provided by the invention dodges the molten bath of stove and is provided with the inner width side-blowing bath section less than 3m, and the inner width in molten bath is less than the way of reaction tower diameter, and the design principle molten bath inner width having overturned traditional flash stove must more than the diameter of reaction tower.The molten bath inner width of traditional Flash Smelting Furnace is all higher than 4 meters, and according to practical experience, by the scope that the mode side-blown on both sides, molten bath can have influence on, its footpath is 3 meters deeply to the maximum, if thus provide heat and reducing agent by side-blown mode for molten bath, then centre, molten bath cannot be affected, and melt viscosity can be caused big, and metallic reducing rate is low；So, the traditional flash stove type of furnace is when for the smelting in burning ore deposit, and the design of its molten bath must change, and inner width must be limited within 3 meters.The present invention is provided with the inner width side-blowing bath section less than 3 meters, each position making molten bath can be directly affected by side-blown, particularly centre can be blown through, so that molten bath forms the liquid melts reducing environment of good fluidity, both improve slag, improve again the percent reduction treating metal smelting.
Sky of the present invention dodges stove and can manufacture the reducing gas of high concentration on the one hand in vaporizer and provide space to smelt required heat, ensures that in reaction tower, the reduction reaction in the burning ore deposit of floating whereabouts can carry out fast and effectively；On the other hand make each position in molten bath to be blown through by the setting of side-blowing bath section, for molten bath additional heat with provide reducing agent, complete oxide ore remains the reduction treating metal smelting oxide.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1-3 is the structural representation of conventional vulcanized ore deposit Flash Smelting Furnace；
Fig. 4 is a kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Fig. 5 is the plan structure schematic diagram of Fig. 4；
Fig. 6 is the second structural representation that the sky described in the embodiment of the present invention dodges stove；
Fig. 7 is the third structural representation that the sky described in the embodiment of the present invention dodges stove；
Fig. 8 is the 4th kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Fig. 9 is the 5th kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Figure 10 is the 6th kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Figure 11 is the 7th kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Figure 12 is the 8th kind of structural representation that the sky described in the embodiment of the present invention dodges stove；
Figure 13 is the 9th kind of structural representation that the sky described in the embodiment of the present invention dodges stove.
Description of reference numerals:
1-reaction tower, 2-molten bath, 3-flue, the side-blown jet pipe of 4-, 5-vaporizer.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second " etc. are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more these features.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention by concrete condition.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of sky dodges stove, as shown in Fig. 4-13, including reaction tower 1 and to charging gear reinforced in reaction tower 1, reaction tower 1 is connected to vaporizer 5, reaction tower 1 bottom is provided with at least one molten bath 2, and each described molten bath 2 is provided with slag-drip opening, and slag-drip opening does not mark in Fig. 4-13, being equipped with the inner width side-blowing bath section less than 3 meters on each molten bath 2, the side of side-blowing bath section is provided with side-blown layout；It sudden strain of a muscle stove also includes the flue 3 for discharging produced flue gas in course of reaction, and flue 3 is connected with reaction tower 1 by molten bath 2.
The work process of this example: the water content coal dust less than 1% and technique oxygen (oxygen-containing 98%) are sprayed in vaporizer 5, manufacture reducing gas for reaction tower 1 and provide space to smelt required heat, dry oxide ore powder and flux is sprayed in reaction tower 1, in the reaction tower 1 of red-hot at high temperature, the full reducing atmosphere of oxide ore powder, by quickly heat transfer, mass transfer and gas-solid, gas-liquid reaction, breeze being treated, metal smelting oxide is reduced rapidly and melts；Reacted melt drops in molten bath 2, molten bath 2 is provided with side-blowing bath section, by side-blown to difference coal injection and oxygen in the slag blanket of melt, there is provided heat for molten bath 2 and make melt produce rolling, make molten bath 2 keep strong reducing environment simultaneously, remaining treat that metal smelting oxide completes reduction thoroughly in molten bath 2.In molten bath 2, flux and the gangue content slag making in breeze, slag and the liquid metal being reduced out precipitated and separated in molten bath 2, form slag blanket and crude metal layer, more respectively slag and crude metal are discharged in molten bath 2, the flue gas that reaction produces discharges out of the furnace from flue 3.Vaporizer 5 reducing gas and the heat that can provide high concentration for reaction tower 1 be set, improve the reduction rate treating metal smelting oxide fallen in reaction tower 1 and percent reduction, thus reducing smelting cost.The setting of the inner width side-blowing bath section less than 3 meters can make each position of melt therethrough all be directly affected, and particularly centre can be blown through, and then for providing reducing agent and heat in molten bath 2.
Sky provided by the invention is dodged stove and is applied in the smelting of ferrum; dodge furnace reaction tower top in sky and be provided with vaporizer 5; the outlet diameter of vaporizer 5 is about the 1/3 of reaction tower 1 diameter; vaporizer 5 outer wall selects double-layer plate; middle logical cooling water, inwall builds refractory brick, and cooling water forms Quench wall; be conducive to the ash in coal to form dross at inwall, protect furnace wall.Vaporizer 5 is provided with four spray guns on sidewall, fine coal, oxygen (can add steam) spray in vaporizer 5 from spray gun, in vaporizer 5, fine coal burns rapidly and gasifies, generate temperature be 1350 DEG C, gas concentration be 90% reduction air-flow (CO+H2), spraying in reaction tower 1 from vaporizer 5 outlet of reduction air-flow high speed.
It is provided with material inlet in the lower end of vaporizer 5, by the material inlet of double-channel structure, it is separately added into iron ore concentrate and flux, iron ore concentrate is general ore dressing plant product out, granularity accounts for 80% (number mark) below 200 orders, dries to moisture content 0.3% (mass fraction).Flux is limestone, and containing CaCO3 more than 90% (mass fraction), granularity, less than 1mm, is dried to moisture less than 1% (mass fraction).Iron ore concentrate is pressurizeed by oxygen enrichment, spray into reaction tower 1 from material inlet, iron ore concentrate is in ejection material inlet moment, namely it is sufficiently mixed with the reducing gas of vaporizer 5 ejection, and decline in afloat, while being thereby rapidly heated about 1200 DEG C, the high price iron oxides in fine iron breeze is reduced into iron oxides and part metals ferrum at a low price, and descends slowly and lightly in the molten bath 2 of reaction tower 1 bottom.
Spray into oxygen and fine coal (technique oxygen concentration is 99.6%, and pulverized coal particle size is 5mm-8mm) to the side-blowing bath section less than 3m by side-blown jet pipe, for molten bath 2 additional heat and reducing agent, and make the high temperature reduction environment that molten bath 2 forms 1300 DEG C-1600 DEG C.
In molten bath 2, stone-like pulse in breeze and the flux slag making of addition, side-blown position is slag blanket bottom, melt can be made to roll, the heat promoting upper and lower interlayer exchanges, and makes the FeO of the more difficult reduction in slag blanket and carbonaceous reducing agent be fully contacted simultaneously, makes FeO almost be reduced into metal Fe completely.Due to proportion, the molten metal drip after reduction, bottom molten bath 2, forms molten iron layer, and slag, after the reduction and precipitation of side-blowing bath section, forms slag blanket on molten iron layer top, and slag finally discharges out of the furnace from the tail end slag-drip opening 5 in molten bath 2.
Adopt sky of the present invention to dodge stove to smelt iron, can directly use the fine iron breeze that ore dressing plant provides as raw material, fuel can without coke, compare traditional blast furnace iron-making process, owing to eliminating the operations such as sintering, pelletizing and coking, the comprehensive energy consumption of ton ferrum reduces by 30%, and gross investment reduces 50%, pollutes minimizing 90%.
According to one embodiment of present invention, flue 3 number is consistent with molten bath 2 number, as shown in FIG. 12 and 13.
The length of side-blowing bath section is 8-20 rice.
According to one embodiment of present invention, side-blowing bath section is cuboid, as shown in Fig. 4-8 and Figure 12-13.
The inner width of cuboid side-blowing bath section is 1.5-2.5 rice.
According to one embodiment of present invention, molten bath 2 is gradually decrease to less than 3 meters by reaction tower 1 end to flue 3 end inner width, as shown in figs. 9-11.
According to one embodiment of present invention, the number in molten bath 2 is 1-4.
According to one embodiment of present invention, side-blown layout includes the side-blown hole being symmetricly set on side-blowing bath section and the side-blown jet pipe 4 being arranged in side-blown hole, as shown in Fig. 5-6 and Fig. 8-13.
According to one embodiment of present invention, described side-blown layout position is corresponding with molten slag layer in described side-blowing bath section, to make described side-blown layout spray into material in described side-blowing bath molten slag layer, material is oxygen-containing gas and carbon-containing fuel, oxygen-containing gas is the one in air, oxygen-air mixture or technique oxygen, and carbon-containing fuel is the one in heavy oil, natural gas, liquefied petroleum gas, coal, nut coke, hydrocarbon gas.
According to one embodiment of present invention, described vaporizer 5 is positioned at reaction tower 1 top, as shown in Figure 4.
According to one embodiment of present invention, described vaporizer 5 arranging the spray gun or the jet pipe that spray into oxygen-containing gas and gas making raw material in oriented vaporizer 5, spray gun or jet pipe penetrate vaporizer 5 inwall, stretch in vaporizer 5, as shown in Figure 4.Spray gun or jet pipe in order to spray into oxygen-containing gas and gas making raw material such as one or more combination in coal dust, water-coal-slurry, steam, natural gas, fuel oil, methane, acetylene, methanol in vaporizer 5, it is used for manufacturing the reducibility gas of high concentration and providing heat for reaction tower, spray gun or jet pipe can be single channel or multichannel, can only a kind of raw material of winding-up, multichannel spray gun or jet pipe also can be jetted plurality of raw materials simultaneously.
According to one embodiment of present invention, described charging gear is positioned on described reaction tower 1.Described charging gear is one or more in nozzle, spray gun, sealing charge door；Or it is one or more combinations with burner in nozzle, spray gun, sealing charge door.By arranging nozzle or spray gun or sealing charge door to the sky sudden strain of a muscle stove necessary raw material of addition smelting, fuel and auxiliary material, if desired, can be additional heat in reaction tower 1 space by burner.
According to one embodiment of present invention, described molten bath 2 or flue 3 are provided with gas leading-in device.Top, molten bath or sidewall arrange some spray guns or air-blast device, oxygen-containing gas can be jetted if desired and burnt by the reducing gas of flue above molten bath, can be molten bath additional heat on the one hand, burn reducing gas on the other hand, reduce the follow-up vent gas treatment operation for reducing gas.Flue 3 arranges spray gun or air-blast device also has similar effect, prevent flue-gas temperature from declining on the one hand and cause flue dust felt jam flue, reducing gas can be consumed on the other hand, remove follow-up processing links from.
According to one embodiment of present invention, described side-blowing bath section is positioned between slag-drip opening and reaction tower 1.So that slag discharges after the fully reduction and precipitation of side-blowing bath section again, thus improving the response rate treating metal smelting.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a sky dodges stove, it is characterized in that: include reaction tower (1) and charging gear reinforced in described reaction tower (1), described reaction tower (1) is connected to vaporizer (5), described reaction tower (1) bottom is provided with at least one molten bath (2), each described molten bath (2) is provided with slag-drip opening, being equipped with the inner width side-blowing bath section less than 3 meters on each described molten bath (2), the side of described side-blowing bath section is provided with side-blown layout；Described sky dodges stove and also includes flue (3), and described flue (3) is connected with described reaction tower (1) by described molten bath (2).
2. sky according to claim 1 dodges stove, it is characterised in that: described side-blowing bath section is cuboid, it is preferred that the inner width of side-blowing bath section is 1.5-2.5 rice.
3. sky according to claim 1 dodges stove, it is characterised in that: the inner width of described molten bath (2) is gradually decrease to less than 3 meters to far-end by described reaction tower (1) end；Preferably, the inner width of described molten bath (2) is held by described reaction tower (1) and is gradually decrease to less than 3 meters to far-end and is not less than 1 meter.
4. the sky according to any one of claim 1-3 dodges stove, it is characterised in that: the number of described molten bath (2) is 1-4.
5. sky according to claim 1 dodges stove, it is characterized in that: side-blown hole that described side-blown layout includes being symmetricly set on described side-blowing bath section and the side-blown jet pipe (4) being arranged in side-blown hole, preferably, described side-blown layout position is corresponding with molten slag layer in described side-blowing bath section.
6. sky according to claim 1 dodges stove, it is characterised in that: described vaporizer (5) is positioned at reaction tower (1) top.
7. sky according to claim 1 dodges stove, it is characterised in that: described vaporizer (5) arranges the spray gun or the jet pipe that spray into oxygen-containing gas and gas making raw material in oriented described vaporizer (5).
8. sky according to claim 1 dodges stove, it is characterised in that: described charging gear is positioned on described reaction tower (1).
9. sky according to claim 1 dodges stove, it is characterised in that: described molten bath (2) or flue (3) is provided with gas leading-in device.
10. sky according to claim 1 dodges stove, it is characterised in that: described side-blowing bath section is positioned between slag-drip opening and described reaction tower (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283938.8A CN105755503B (en) | 2016-04-28 | 2016-04-28 | A kind of day dodges stove |
| PCT/CN2017/074027 WO2017185859A1 (en) | 2016-04-28 | 2017-02-19 | Skyflash furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283938.8A CN105755503B (en) | 2016-04-28 | 2016-04-28 | A kind of day dodges stove |
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| CN105755503A true CN105755503A (en) | 2016-07-13 |
| CN105755503B CN105755503B (en) | 2018-04-20 |
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| CN201610283938.8A Active CN105755503B (en) | 2016-04-28 | 2016-04-28 | A kind of day dodges stove |
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| WO (1) | WO2017185859A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017185857A1 (en) * | 2016-04-28 | 2017-11-02 | 天津闪速炼铁技术有限公司 | Flash furnace having side-blown molten pool sections |
| WO2017185859A1 (en) * | 2016-04-28 | 2017-11-02 | 天津闪速炼铁技术有限公司 | Skyflash furnace |
| CN108048610A (en) * | 2018-01-10 | 2018-05-18 | 航天长征化学工程股份有限公司 | Burner combination device and method for directly gasifying reduced iron |
| CN110396606A (en) * | 2019-09-05 | 2019-11-01 | 天津闪速炼铁技术有限公司 | A kind of flash metallurgy gas package integral supply system and method for mixing |
| US11459626B2 (en) | 2018-08-10 | 2022-10-04 | American Iron And Steel Institute | Flash ironmaking drop tube furnace system |
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| CN112626354B (en) * | 2020-12-10 | 2022-12-27 | 广西金川有色金属有限公司 | Flash converting furnace flux recycling device and using method thereof |
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| CN102690919A (en) * | 2012-06-01 | 2012-09-26 | 中国瑞林工程技术有限公司 | Flash smelting method of iron |
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| CN110396606A (en) * | 2019-09-05 | 2019-11-01 | 天津闪速炼铁技术有限公司 | A kind of flash metallurgy gas package integral supply system and method for mixing |
Also Published As
| Publication number | Publication date |
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| CN105755503B (en) | 2018-04-20 |
| WO2017185859A1 (en) | 2017-11-02 |
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