CN108291273A - For preheating and the method and apparatus of melting manganese ore sinter - Google Patents
For preheating and the method and apparatus of melting manganese ore sinter Download PDFInfo
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- CN108291273A CN108291273A CN201680068082.0A CN201680068082A CN108291273A CN 108291273 A CN108291273 A CN 108291273A CN 201680068082 A CN201680068082 A CN 201680068082A CN 108291273 A CN108291273 A CN 108291273A
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- carbonaceous gas
- carbon dioxide
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- arc furnace
- containing carbon
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- 239000011572 manganese Substances 0.000 title claims abstract description 47
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000002844 melting Methods 0.000 title claims abstract description 20
- 230000008018 melting Effects 0.000 title claims abstract description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000007789 gas Substances 0.000 claims abstract description 99
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 66
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 60
- 239000000203 mixture Substances 0.000 claims abstract description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 229910000914 Mn alloy Inorganic materials 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 239000000571 coke Substances 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 14
- 238000010079 rubber tapping Methods 0.000 claims description 13
- 229910021532 Calcite Inorganic materials 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000003610 charcoal Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 235000012255 calcium oxide Nutrition 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000007781 pre-processing Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 5
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003830 anthracite Substances 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 3
- 229960004424 carbon dioxide Drugs 0.000 claims 24
- 241000790917 Dioxys <bee> Species 0.000 claims 2
- 229910002090 carbon oxide Inorganic materials 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- -1 air in burner (7) Chemical compound 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000001273 butane Substances 0.000 description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000002956 ash Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 238000010744 Boudouard reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000876852 Scorias Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- QUWBSOKSBWAQER-UHFFFAOYSA-N [C].O=C=O Chemical compound [C].O=C=O QUWBSOKSBWAQER-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000005588 carbonic acid salt group Chemical group 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
Classifications
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- 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
- C22B47/00—Obtaining manganese
- C22B47/0018—Treating ocean floor nodules
- C22B47/0027—Preliminary treatment
-
- 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
- C22B47/00—Obtaining manganese
- C22B47/0018—Treating ocean floor nodules
- C22B47/0036—Treating ocean floor nodules by dry processes, e.g. smelting
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
-
- 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
- C22B47/00—Obtaining manganese
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/106—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents the refining being obtained by intimately mixing the molten metal with a molten salt or slag
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
- C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
It describes for preheating and the method and apparatus of melting manganese ore sinter.This method includes that will contain manganese ore sinter (2), in the charging to burried arc furnace (5) of the incoming mixture (1) of reducing agent (3) and fluxing agent (4), melting incoming mixture (1) is with the layer of formation manganese alloy containing liquid and containing the layer of clinker, extracting liq manganese and discharge carbonaceous gas contain carbon monoxide (6), carbonaceous gas contain carbon monoxide (6) is burnt to form the carbonaceous gas (9) containing carbon dioxide there are oxygen such as air in burner (7), and the heating incoming mixture (1) in pretreatment cylinder (8) of the carbonaceous gas (9) containing carbon dioxide described in before by the incoming mixture (1) charging to burried arc furnace (5).
Description
Invention field
The present invention relates to such as limited in the preamble of independent claims 1 for preheating and the sintering of melting manganese ore
The method of object.
The invention further relates to such as limited in the preamble of independent claims 14 for preheating and melting manganese ore
The equipment of sinter.
Goal of the invention
The object of the present invention is to provide the method and apparatus for energy saving melting manganese ore sinter.
Invention briefly describes
For preheating with the method for melting manganese ore sinter characterized by the restriction of independent claims 1.
The preferred embodiment of this method is defined in dependent claims 2-13.
Equipment for pre- hot smelting manganese ore sinter is correspondingly characterized by the restriction of independent claims 14.
The preferred embodiment of the equipment is defined in dependent claims 15-26.
The present invention is based on preheating containing at least incoming mixture of manganese ore sinter and reducing agent so as to eliminate come from into
Expect the moisture of mixture and preheats the incoming mixture to temperature as high as possible without burning or discharging in incoming mixture
For the carbon in the reducing agent needed for reduction purpose.
In the contained manganese of preheating, carbon consumption reaction, especially Boudouard reactions It is limiting factor.Water gas reaction H also occurs2O+C→H2+CO.Therefore pretreatment cylinder
(silo) preheating temperature can be locally maximum 600-700 DEG C in, this depends on the reactivity of carbon in the reducing agent of incoming mixture.
It is usually less than 600 DEG C to the mean temperature of the molten charge of electric furnace.
The electric energy that incoming mixture saves burried arc furnace is preheated, operation is improved, by preventing carbon and oxygen in incoming mixture
Between reaction to improve safety and the production of melting, and therefore prevent uncontrolled temperature from improving and possible explosion.
List of drawings
It will be more fully described below by reference to attached drawing for preheating and the method and apparatus of melting manganese ore sinter,
Wherein
Fig. 1 shows the flow chart of the first embodiment, and
Fig. 2 shows the flow chart of the second embodiment.
Detailed description of the Invention
Will be described in further detail first for pre- hot smelting manganese ore sinter method and this method some preferably
Embodiment and variant.
This method includes feed step, for that will include the charging of at least manganese ore sinter 2, reducing agent 3 and fluxing agent 4
In the charging to burried arc furnace 5 of mixture 1.
This method includes melting step, for the incoming mixture 1 in melting burried arc furnace 5 to form manganese containing liquid
The layer (not shown) of alloy and the layer (not shown) containing clinker on the layer of the manganese alloy containing liquid.
This method includes extraction step, for from burried arc furnace 5 individually or simultaneously extracting liq manganese alloy and clinker.
This method includes the first drain steps, for discharging carbonaceous gas 6 contain carbon monoxide from burried arc furnace 5.
This method includes combustion step, for burning first there are oxygen such as air in burner 7
The carbonaceous gas contain carbon monoxide 6 discharged from burried arc furnace 5 in drain steps contains the carbon containing of carbon dioxide to be formed
Gas 9.
The feed step of this method includes heating stepses, for before by the charging to burried arc furnace 5 of incoming mixture 1
It is used in combustion step the carbonaceous gas 9 containing carbon dioxide described in being formed in pre-processing cylinder 8 and heats the charging mixing
Object 1.
Burried arc furnace 5 preferably exchanges (AC) burried arc furnace 5 used in the method.
It is preferred that burner 7 is connected to pretreatment cylinder 8, and pretreatment cylinder 8 is preferably connected to burried arc furnace 5 so that anti-
Only such as oxygen of the gas from surrounding air enters burner 7, pretreatment cylinder 9 and burried arc furnace 5 to prevent the charging material
The uncontrolled reaction of material 1.
Manganese ore sinter 9 can be with the particle size of 6-75mm.
This method may include the temperature being heated to incoming mixture 1 in heating stepses within the scope of 400-700 DEG C, preferably
The temperature being heated between 500-650 DEG C.
This method preferably (but being not necessarily to) include adjust used in heating stepses described in containing the carbon containing of carbon dioxide
The temperature of gas 9.The temperature of carbonaceous gas 9 containing carbon dioxide described in being used in heating stepses is controlled to 600-
Temperature within the scope of 900 DEG C.
In burner 7, preferably contained from what burried arc furnace 5 received than burning with the air for being less than 1 (such as 0.9-0.95)
There is the carbonaceous gas 6 of carbon monoxide.Oxygen (O in the carbonaceous gas 9 containing carbon dioxide formed in combustion step2) content answers
It is very low so that in incoming mixture 1 carbon oxidation minimize.The carbonaceous gas 9 containing carbon dioxide formed in combustion step
Middle carbon monoxide (CO) and hydrogen (H2) content answer it is very low to avoid gas line (especially burner 7 and pretreatment cylinder 8
Between) in or the explosion in pre-processing cylinder 8.
This method may include containing carbon monoxide from what burried arc furnace 5 discharged by means of butane to burn in combustion step
Carbonaceous gas 6.
This method may include in combustion step by means of CO gases or such as butane (C4H10) (so that air and butane
Molar ratio is within the scope of 0.9-0.95) come the carbonaceous gas contain carbon monoxide 6 discharged from burried arc furnace 5 that burns.
It is formed in combustion step and the carbonaceous gas 9 containing carbon dioxide that is used in heating stepses is by volume basis
It can contain than meter：
CO2：25-35%,
N2：50-65%,
H2O：3-8%H2O,
O2：Less than 1%,
H2：Less than 1%, and
CO：Less than 2%.
Heating stepses preferably include to feed by the carbonaceous gas 9 containing carbon dioxide described in being formed in combustion step
To pre-processing the incoming mixture 1 is heated in cylinder 8.In this case, preferably include will be in combustion step for heating stepses
The carbonaceous gas 9 containing carbon dioxide formed is fed from below into pretreatment cylinder 8 so that containing containing carbon dioxide
Carbon gas 9 is relative to (such as upward) flowing in opposite direction of the incoming mixture in pretreatment cylinder 8.
As shown in Fig. 2, this method may include the first washing step of the CO gas 6 discharged from burried arc furnace 5.This
In burner 7 before combusting carbon monoxide gas 6.
As shown in Fig. 2, this method may include the second drain steps, for containing carbon dioxide from the pretreatment discharge of cylinder 8
Carbonaceous gas 9, and for by the charging of carbonaceous gas 9 containing carbon dioxide discharged from pretreatment cylinder 8 to burner 7 and/or
It is being burnt in charging to the carbonaceous gas 9 containing carbon dioxide formed in combustion step by means of burner 7 to adjust
The temperature of the carbonaceous gas 9 containing carbon dioxide formed in step.In this case, this method may include the second washing
Step, in the second washer 11 washing discharged from pretreatment cylinder 8 in the second drain steps containing carbon dioxide
Carbonaceous gas 9.
The reducing agent 3 of incoming mixture 1 can contain carbonaceous material, such as smelter coke, anthracite or charcoal.
The fluxing agent 4 of incoming mixture 1 can contain such as calcite, thick burnt lime (coarse burned lime), stone
English, dolomite.
The chemical analysis of manganese ore sinter 2 depends on the chemical analysis of manganese ore.Manganese ore is based on calcium, is based on carbonic acid
Salt and based on oxidation, chemical analysis changes very greatly.Manganese ore sinter 2 can energy content be：
Mn：40-55%,
Fe：1-10%,
SiO2：4-10%,
MgO：0.4-8%,
CaO：1.0-15%,
A2O3：1-15%,
K2O：Less than 1.5%,
BaO：Less than 0.6%.
It is discussed more fully below excellent with some of the equipment of melting manganese ore sinter and this method for preheating
Select embodiment and variant.
The equipment includes burried arc furnace 5, includes at least manganese ore sinter 2, reducing agent 3 and fluxing agent 4 for melting
Incoming mixture 1.The layer of the manganese alloy containing liquid and the layer in the manganese alloy containing liquid are formd in melting in burried arc furnace 5
On the layer containing clinker.
The equipment includes the first feeding equipment 12, constructs first feeding equipment 12 to feed the incoming mixture 1
Into burried arc furnace 5.
The equipment includes extraction element 13, for from burried arc furnace 5 individually or simultaneously extracting liq manganese and clinker.
The equipment includes the first tapping equipment 14, for discharging carbonaceous gas 6 contain carbon monoxide from burried arc furnace 5.
The equipment includes burner 7, is connect for burning from the first tapping equipment 14 there are oxygen such as air
The carbonaceous gas contain carbon monoxide 6 received is to form the carbonaceous gas 9 containing carbon dioxide.
First feeding equipment 12 of the equipment includes pretreatment cylinder 8, for being fed to submerged arc by the incoming mixture 1
The carbonaceous gas 9 containing carbon dioxide described in being formed by means of burner 7 heats the incoming mixture before in electric furnace 5
1。
Burried arc furnace 5 in the equipment preferably exchanges (AC) burried arc furnace 5.
It is preferred that burner 7 is connected to pretreatment cylinder 8, and pretreatment cylinder 8 is preferably connected to burried arc furnace 5 so that anti-
Only such as oxygen of the gas from surrounding air enters burner 7, pretreatment cylinder 9 and burried arc furnace 5 to prevent the charging material
The uncontrolled reaction of material 1.
Manganese ore sinter 9 can be with the particle size of 6-75mm.
The pretreatment cylinder 8 of the equipment can be constructed so that incoming mixture 1 to be heated to the temperature within the scope of 400-700 DEG C, it is excellent
Choosing is heated to the temperature within the scope of 500-650 DEG C.
The equipment preferably (but being not necessarily to) includes gas temperature regulating device (not shown), constructs the gas temperature tune
Regulating device described in the adjusting before by the charging of carbonaceous gas 9 to pretreatment cylinder 8 containing carbon dioxide to contain titanium dioxide
The temperature of the carbonaceous gas 9 of carbon.The temperature control that the carbonaceous gas 9 containing carbon dioxide of charging to pretreatment cylinder 8 can be fed
It makes to 600-900 DEG C of range.
In burner 7, preferably contained from what burried arc furnace 5 received than burning with the air for being less than 1 (such as 0.9-0.95)
There is the carbonaceous gas 6 of carbon monoxide.Oxygen (O in the carbonaceous gas 9 containing carbon dioxide formed in combustion step2) content answers
It is very low so that in incoming mixture 1 carbon oxidation minimize.The carbonaceous gas 9 containing carbon dioxide formed in combustion step
Middle carbon monoxide (CO) and hydrogen (H2) content answer the very low explosion to avoid in gas line or in pre-processing cylinder 8.
Burner 7 can be CO, butane and LPG burners.
By burner 7 generate described in the carbonaceous gas 9 containing carbon dioxide preferably (but need not by volume percentage
Need) contain：
CO2：25-35%,
N2：50-65%,
H2O：5-15%H2O,
O2：Less than 1%,
H2：Less than 1%, and
CO：Less than 2%.
Preferable configuration device (preferably burner 7) with by the carbonaceous gas 9 containing carbon dioxide from below into
It is mixed to make that the carbonaceous gas 9 containing carbon dioxide flows upward through charging in pre-processing cylinder 8 in material to pretreatment cylinder 8
Close object.
As shown in Fig. 2, the equipment may include the first washer 10, first washer 10 is constructed to be fired in burner 7
It burns carbon monoxide and washs the carbonaceous gas contain carbon monoxide 6 discharged from burried arc furnace 5 before.
As shown in Fig. 2, the equipment may include：Second tapping equipment 15 constructs second tapping equipment 15 with from pretreatment
Cylinder 8 discharges the carbonaceous gas 9 containing carbon dioxide；With third feeding equipment (unused reference numeral mark), construct the third into
Material device is to burner 7 and/or to feed the charging of carbonaceous gas 9 containing carbon dioxide discharged from the second tapping equipment 15
Into the carbonaceous gas 9 containing carbon dioxide formed by burner 7, contain titanium dioxide by what burner 7 was formed to adjust
The temperature of the carbonaceous gas 9 of carbon.
As shown in Fig. 2, the second tapping equipment 15 of the equipment include the second washer 11, construct second washer 11 with
Wash the carbonaceous gas 9 containing carbon dioxide discharged from pretreatment cylinder 8.Can in optional temperature-adjusting device use from
The cold and washed gas that the carbonaceous gas 9 containing carbon dioxide of two washers 11 removes is for adjusting charging to pretreatment
The temperature of the carbonaceous gas 9 containing carbon dioxide of cylinder 8.
The first feeding equipment 12 of the equipment can be constructed to feed reducing agent 3, which contains carbonaceous material such as smelting
Golden coke, anthracite and/or charcoal.
The first feeding equipment 12 of the equipment can be constructed to feed fluxing agent 4, which contains calcite, thick scoria
At least one of ash, dolomite and quartz.
The first feeding equipment 12 of the equipment can be constructed to feed manganese ore sinter 2, which presses quality
Percentages contain：
Mn：40-55%,
Fe：1-10%,
SiO2：4-10%,
MgO：0.4-8%,
CaO：1-15%,
A2O3：1-15%,
K2O：Less than 1.5%, and
BaO：Less than 0.6%.
As shown in Fig. 2, the first feeding equipment 12 may include that wound packages sets 16, it includes first for manganese ore sinter 2
Cylinder 17, second 18 for reducing agent 3 and the third cylinder 19 for fluxing agent 4.
Embodiment 1
Defined in the smelter coke with the composition defined in table 1 and " original sinter " row with table 2
The calcite manganese ore sinter of composition is mixed simultaneously by 80 weight percent (weight %) calcite ores and the ratio of 20 weight %
It is heated to four different temperatures in a reservoir：500 DEG C, 600 DEG C, 700 DEG C and 800 DEG C.Calcite manganese ore is burnt before mixing
Knot object is broken and screens into the particle size of 2.38-6.73mm, and smelter coke is crushed and is screened into before mixing
The particle size of 0.595-4.76mm.
It is heated by sensing heating, and carbon dioxide and nitrogen will be contained with the ratio of 30% carbon dioxide and 70%
Gas be blown into container to imitate practical heating condition.
In following each composition for measuring calcite manganese ore sinter：500 DEG C, 600 DEG C, 700 DEG C and 800
℃.It such as can be from " 500 DEG C " of table 3, " 600 DEG C ", " 700 DEG C " and " 800 DEG C " row findings, the composition of calcite manganese ore sinter
Only slightly change, it means that for example almost without any reduction of generation oxide.
The chemical analysis of 1. smelter coke of table
1)The Leco on C, S- analyzer
2)Pass through wet chemistry
3)ICP (plasma emission spectrometer)
4)The weight % of coke
5)Ash quantity is 12.7 weight % in coke
6)CfixValue：100% (volatile matter+ash+sulphur)
2. calcite ore of table preheating sinter chemical analysis with preheating temperature variation
1)Amount of metal
Embodiment 2
By with the composition defined in table 1 smelter coke and in table 3 " original sinter " row defined in
Composition manganese oxide ore sinter by 80 weight % calcite ores and 20 weight % charcoals ratio mixing and in a reservoir
It is heated to four different temperatures：500 DEG C, 600 DEG C, 700 DEG C and 800 DEG C.It is before mixing that manganese oxide ore sinter is broken simultaneously
And screening is at the particle size of 2.38-6.73mm, and smelter coke is crushed and screens into 0.595-4.76mm's before mixing
Particle size.
It is heated by sensing heating, and carbon dioxide and nitrogen will be contained with the ratio of 30% carbon dioxide and 70%
Gas be blown into container to imitate practical heating condition.
In following each composition for measuring manganese oxide ore sinter：500 DEG C, 600 DEG C, 700 DEG C and 800 DEG C.
Such as can be from " 500 DEG C " of table 3, " 600 DEG C ", " 700 DEG C " and " 800 DEG C " row findings, the composition of manganese oxide ore sinter is only slightly
Micromodification becomes, it means that for example almost without any reduction of generation oxide.
3. oxidized ore of table preheating sinter chemical analysis with preheating temperature variation
1)
2)Amount of metal
Embodiment 3
In equipment according to fig. 2, the manganese sinter limited in such as table 4 is fed to pre- with the feed rate of 131kg/h
In process cartridge 8, and with the feed rate of 24kg/h by such as table 5 " charcoal " row limit reducing agent feed to pretreatment cylinder 8
In.With 970m3The feed rate of/h will contain 57 volume %N2, 30 volume %CO2With 11 volume %H2O simultaneously has 850 DEG C of temperature
Carbonaceous gas feed to pretreatment cylinder 8 in.
The chemical analysis of 4. manganese sinter of table, weight %
The chemical analysis of reducing agent in 5. embodiment 3 and 4 of table, weight %
The carbon component of charcoal starts to gasify at 450 DEG C.
Observing can preheat wherein by the temperature of mixture to 400 DEG C of the charcoal as reducing agent 3 without carbon gasification.It is logical
It crosses Boudouard reactions or starts to aoxidize by water gas reaction charcoal.In addition, in the carbonaceous gas 9 containing carbon dioxide
Water and oxygen content should the low oxidations to avoid carbon.
Embodiment 4
In equipment according to fig. 2, the manganese sinter that such as table 4 limits is fed to pre- place with the feed rate of 131kg/h
It manages in cylinder 8, and is fed the reducing agent limited in " coke " row in such as table 5 to pretreatment cylinder 8 with the feed rate of 24kg/h
In.With 970m3The feed rate of/h will contain 57 volume %N2, 30 volume %CO2With 11 volume %H2O simultaneously has 850 DEG C of temperature
Carbonaceous gas feed to pretreatment cylinder 8 in.
The carbon of coke starts to gasify at 700 DEG C.
Observe can preheat wherein by the temperature of mixture of the coke as reducing agent 3 to 650 DEG C and the carbon in coke does not have
Have and is reacted by Boudouard or start to aoxidize not over water gas reaction.In addition, the carbonaceous gas 9 containing carbon dioxide
In water and oxygen content should the low oxidation to avoid carbon.
Pair it is clear to the skilled person that：With technological progress, many modes can be used and realize that the present invention's is basic
Design.Therefore the present invention and its embodiment are not limited to above example, but they can be in the range of claims
Variation.
Claims (26)
1. for preheating and the method for melting manganese ore sinter, it is characterised in that：
Feed step, for the incoming mixture of at least manganese ore sinter (2), reducing agent (3) and fluxing agent (4) will to be contained
(1) in charging to burried arc furnace (5),
Melting step, for the incoming mixture (1) in the melting burried arc furnace (5) with formed the manganese alloy containing liquid layer and
The layer containing clinker on the layer of the manganese alloy containing liquid,
Extraction step is used for from burried arc furnace (5) the extracting liq manganese and clinker,
First drain steps, for discharging carbonaceous gas (6) contain carbon monoxide from the burried arc furnace (5),
Combustion step, in burner (7) there are oxygen such as air burning in the first drain steps from
The burried arc furnace (5) discharge carbonaceous gas contain carbon monoxide (6) to form the carbonaceous gas (9) containing carbon dioxide,
Heating stepses, for pre-processing cylinder (8) before by the incoming mixture (1) charging to the burried arc furnace (5)
In be used in the carbonaceous gas (9) containing carbon dioxide formed in combustion step and heat the incoming mixture (1), and
It is characterized in that
Added in heating stepses by feeding the carbonaceous gas (9) containing carbon dioxide into the pretreatment cylinder (8)
Hot feed mixture (1).
2. the method according to claim 1, it is characterised in that：
The burried arc furnace (5) is exchange (AC) burried arc furnace (5).
3. according to the method for claims 1 or 2, it is characterised in that：
Manganese ore sinter (2) has the particle size of 6-75mm.
4. method as claimed in one of claims 1-3, it is characterised in that：
The incoming mixture (1) pre-processed in cylinder (8) is heated to the temperature within the scope of 400-700 DEG C in heating stepses, it is excellent
Choosing is heated to the temperature within the scope of 500-650 DEG C.
5. method as claimed in one of claims 1-4, it is characterised in that：
The temperature of the carbonaceous gas (9) containing carbon dioxide described in being used in heating stepses is adjusted to 580-900 DEG C of range
Interior temperature.
6. method as claimed in one of claims 1-5, it is characterised in that：Contain dioxy described in being used in heating stepses
The carbonaceous gas (9) for changing carbon is contained by volume percentage：
CO2：25-35%,
N2：50-65%,
H2O：3-8%,
O2：Less than 1%,
H2：Less than 1%, and
CO：Less than 2%.
7. method as claimed in one of claims 1-6, it is characterised in that：
The carbonaceous gas (9) containing carbon dioxide is fed into the pretreatment cylinder (8) into heating stepses from below so that institute
It states the carbonaceous gas (9) containing carbon dioxide and flows upward through charging in the pretreatment cylinder (8) in the pretreatment cylinder (8)
Mixture (1).
8. method as claimed in one of claims 1-7, it is characterised in that：
In carbonaceous gas contain carbon monoxide (6) charging that will be discharged in the first drain steps to before burner (7), the
The carbonaceous gas contain carbon monoxide that washing is discharged in the first drain steps from the burried arc furnace (5) in one washer (10)
(6)。
9. method as claimed in one of claims 1-8, it is characterised in that：
Second drain steps are used to discharge the carbonaceous gas (9) containing carbon dioxide from pretreatment cylinder (8), and
Extremely by carbonaceous gas (9) charging containing carbon dioxide discharged in the second drain steps to burner (7) and/or charging
To which what adjusting was formed in combustion step contains dioxy in the carbonaceous gas (9) containing carbon dioxide used in heating stepses
Change the temperature of the carbonaceous gas (9) of carbon.
10. method as claimed in one of claims 1-9, it is characterised in that：
By before discharging carbonaceous gas (9) charging to burner (7) containing carbon dioxide in the second drain steps, the
The carbonaceous gas (9) containing carbon dioxide that washing is discharged in the second drain steps in two washers (11).
11. method as claimed in one of claims 1-10, it is characterised in that：
The reducing agent (3) contains carbonaceous material, such as coke, anthracite and/or charcoal.
12. according to the method for any one of claim 1-11, it is characterised in that：
The fluxing agent (4) contains at least one of calcite, thick burnt lime, dolomite and quartz.
13. according to the method for any one of claim 1-12, it is characterised in that：
The manganese ore sinter (2) contains by mass percentage：
Mn：40-55%,
Fe：1-10%,
SiO2：4-10%,
MgO：0.4-8%,
CaO：1-15%,
A2O3：1-15%,
K2O：Less than 1.5%, and
BaO：Less than 0.6%.
14. for preheating and the equipment of melting manganese ore sinter, it is characterised in that：
Burried arc furnace (5), the charging that at least manganese ore sinter (2), reducing agent (3) and fluxing agent (4) are contained for melting are mixed
Object (1) is closed to form the layer of the manganese alloy containing liquid and containing on the layer of the manganese alloy containing liquid in the burried arc furnace (5)
The layer of clinker,
First feeding equipment (12) constructs first feeding equipment (12) feeding incoming mixture (1) to the burried arc furnace
(5) in,
Extraction element (13) is used for from burried arc furnace (5) the extracting liq manganese alloy and clinker,
First tapping equipment (14), for discharging carbonaceous gas (6) contain carbon monoxide from the burried arc furnace (5),
Burner (7) contains one for burning from what the first tapping equipment (14) received there are oxygen such as air
The carbonaceous gas (6) of carbonoxide to form the carbonaceous gas (9) containing carbon dioxide,
First feeding equipment (12) includes pretreatment cylinder (8), for before by incoming mixture (1) charging to burried arc furnace
The incoming mixture (1) is heated with the carbonaceous gas (9) containing carbon dioxide, and
The burner (7) is constructed extremely to pre-process in cylinder (8) carbonaceous gas (9) charging containing carbon dioxide.
15. equipment according to claim 14, it is characterised in that：
The burried arc furnace (5) is exchange (AC) burried arc furnace (5).
16. according to the equipment of claims 14 or 15, it is characterised in that：
The manganese ore sinter (2) has the particle size of 6-75mm.
17. according to the equipment of any one of claim 14-16, it is characterised in that：
The pretreatment cylinder (8) is constructed so that incoming mixture (1) to be heated to the temperature within the scope of 400-700 DEG C, is preferably heated to
500-650 DEG C of temperature.
18. according to the equipment of any one of claim 14-17, it is characterised in that：
Gas temperature regulating device constructs the gas temperature regulating device to adjust the carbonaceous gas containing carbon dioxide
(9) temperature within the scope of temperature to 580-900 DEG C.
19. according to the equipment of any one of claim 14-18, it is characterised in that described the containing of charging to pretreatment cylinder (8)
The carbonaceous gas (9) of carbon dioxide is contained by volume percentage：
CO2：25-35%,
N2：50-65%,
H2O：3-8%,
O2：Less than 1%,
H2：Less than 1%, and
CO：Less than 2%.
20. according to the equipment of any one of claim 14-19, it is characterised in that：
Construction pretreatment cylinder (8) is feeding the carbonaceous gas (9) containing carbon dioxide from below to the pretreatment cylinder (8)
In so that the carbonaceous gas (9) containing carbon dioxide flows up in the pretreatment cylinder (8).
21. according to the equipment of any one of claim 14-20, it is characterised in that：
First tapping equipment (14) includes the first washer (10), constructs first washer (10) in burner (7)
The carbonaceous gas contain carbon monoxide (6) discharged from burried arc furnace (5) is burnt in the case of there are oxygen such as air to be formed
Carbonaceous gas (9) containing carbon dioxide washs the carbonaceous gas contain carbon monoxide discharged from burried arc furnace (5) before
(6)。
22. according to the equipment of any one of claim 14-21, it is characterised in that：
Second tapping equipment (15) constructs second tapping equipment (15) to be discharged from pretreatment cylinder (8) containing carbon dioxide
Carbonaceous gas (9), and
Third feeding equipment, carbonaceous gas (9) charging containing carbon dioxide for second tapping equipment (15) will to be come from
Into burner (7) and/or charging to the carbonaceous gas (9) containing carbon dioxide formed by burner (7).
23. according to the equipment of any one of claim 14-22, it is characterised in that：
Second tapping equipment (15) includes the second washer (11), constructs second washer (11) to wash from pretreatment cylinder
(8) carbonaceous gas (9) containing carbon dioxide discharged.
24. according to the equipment of any one of claim 14-23, it is characterised in that：
First feeding equipment (12) is constructed to feed the incoming mixture (1) containing reducing agent (3), which contains
Carbonaceous material such as coke, anthracite and/or charcoal.
25. according to the equipment of any one of claim 14-24, it is characterised in that：
First feeding equipment (12) is constructed to feed the incoming mixture (1) containing fluxing agent (4), which contains
At least one of calcite, thick burnt lime, dolomite and quartz.
26. according to the equipment of any one of claim 14-25, it is characterised in that：
First feeding equipment (12) is constructed to feed the incoming mixture (1) containing manganese ore sinter (2), which burns
Knot object (2) contains by mass percentage：
Mn：40-55%,
Fe：1-10%,
SiO2：4-10%,
MgO：0.4-8%,
CaO：1-15%,
A2O3：1-15%,
K2O：Less than 1.5%, and
BaO：Less than 0.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360609.5A CN111394578B (en) | 2015-11-24 | 2016-11-23 | Method for preheating and smelting manganese ore sinter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20155868 | 2015-11-24 | ||
| FI20155868A FI127451B (en) | 2015-11-24 | 2015-11-24 | Method and apparatus for preheating and smelting manganese ore sinter |
| PCT/FI2016/050821 WO2017089651A1 (en) | 2015-11-24 | 2016-11-23 | Method and apparatus for preheating and smelting manganese ore sinter |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010360609.5A Division CN111394578B (en) | 2015-11-24 | 2016-11-23 | Method for preheating and smelting manganese ore sinter |
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|---|---|
| CN108291273A true CN108291273A (en) | 2018-07-17 |
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| CN202010360609.5A Active CN111394578B (en) | 2015-11-24 | 2016-11-23 | Method for preheating and smelting manganese ore sinter |
| CN201680068082.0A Pending CN108291273A (en) | 2015-11-24 | 2016-11-23 | For preheating and the method and apparatus of melting manganese ore sinter |
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| Country | Link |
|---|---|
| EP (1) | EP3380638B1 (en) |
| CN (2) | CN111394578B (en) |
| AU (1) | AU2016360842B2 (en) |
| BR (1) | BR112018010149B1 (en) |
| EA (1) | EA033946B1 (en) |
| FI (1) | FI127451B (en) |
| UA (1) | UA122912C2 (en) |
| WO (1) | WO2017089651A1 (en) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114127319A (en) * | 2019-03-27 | 2022-03-01 | 多伦多大学管理委员会 | Method for recovering target metal from iron or steel slag using at least one of carbothermic process and pyrometallurgical-hydrometallurgical process |
| CN115584372A (en) * | 2021-09-07 | 2023-01-10 | F·P·格雷林 | Method for smelting metal-containing raw material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114980A (en) * | 2018-09-30 | 2019-01-01 | 河南省德耀节能科技股份有限公司 | A kind of energy-efficient mineral hot furnace |
| NL2026572B1 (en) * | 2020-09-29 | 2022-05-30 | Petrus Greyling Frederik | Process and system for melting agglomerates |
| CN113981210A (en) * | 2021-10-29 | 2022-01-28 | 吉铁铁合金有限责任公司 | Production process for producing manganese series ferroalloy by roasting manganese ore |
| WO2024127061A1 (en) * | 2022-12-13 | 2024-06-20 | African Rainbow Minerals Limited | Process for the oxidative pre-melting and smelting of a metalliferous feedstock material-containing agglomerate |
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- 2016-11-23 WO PCT/FI2016/050821 patent/WO2017089651A1/en active Application Filing
- 2016-11-23 UA UAA201805936A patent/UA122912C2/en unknown
- 2016-11-23 AU AU2016360842A patent/AU2016360842B2/en not_active Ceased
- 2016-11-23 EP EP16816320.2A patent/EP3380638B1/en active Active
- 2016-11-23 EA EA201891065A patent/EA033946B1/en not_active IP Right Cessation
- 2016-11-23 CN CN201680068082.0A patent/CN108291273A/en active Pending
- 2016-11-23 BR BR112018010149-4A patent/BR112018010149B1/en active IP Right Grant
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| CN115584372A (en) * | 2021-09-07 | 2023-01-10 | F·P·格雷林 | Method for smelting metal-containing raw material |
| CN115584372B (en) * | 2021-09-07 | 2024-07-12 | F·P·格雷林 | Method for smelting metalliferous raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| EA033946B1 (en) | 2019-12-12 |
| FI127451B (en) | 2018-06-15 |
| BR112018010149A2 (en) | 2018-11-13 |
| ZA201803599B (en) | 2021-01-27 |
| CN111394578B (en) | 2021-10-15 |
| EP3380638A1 (en) | 2018-10-03 |
| BR112018010149B1 (en) | 2021-10-19 |
| CN111394578A (en) | 2020-07-10 |
| AU2016360842B2 (en) | 2019-08-15 |
| FI20155868A (en) | 2017-05-25 |
| WO2017089651A1 (en) | 2017-06-01 |
| EA201891065A1 (en) | 2018-11-30 |
| AU2016360842A1 (en) | 2018-06-21 |
| EP3380638B1 (en) | 2020-03-11 |
| UA122912C2 (en) | 2021-01-20 |
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