CN107385203B - Method for preparing sintered ore by using thermal state converter slag as binder phase - Google Patents
Method for preparing sintered ore by using thermal state converter slag as binder phase Download PDFInfo
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- CN107385203B CN107385203B CN201710742160.7A CN201710742160A CN107385203B CN 107385203 B CN107385203 B CN 107385203B CN 201710742160 A CN201710742160 A CN 201710742160A CN 107385203 B CN107385203 B CN 107385203B
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- sinter
- ferrous material
- vessel slag
- hot
- slag
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- 239000002893 slag Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011230 binding agent Substances 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 91
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 67
- 238000010438 heat treatment Methods 0.000 claims description 24
- 230000007480 spreading Effects 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910052681 coesite Inorganic materials 0.000 claims description 10
- 229910052906 cristobalite Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 229910052682 stishovite Inorganic materials 0.000 claims description 10
- 229910052905 tridymite Inorganic materials 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 3
- 229910021646 siderite Inorganic materials 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052791 calcium Inorganic materials 0.000 abstract description 6
- 239000011575 calcium Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000004907 flux Effects 0.000 abstract description 4
- 239000004449 solid propellant Substances 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for preparing sintered ore by using thermal converter slag as a binder phase, which comprises the following steps: 1) calculating ingredients; 2) preheating; 3) paving materials for the first time; 4) pouring and covering; 5) paving the material for the second time; 6) compacting and sintering; 7) cooling; 8) crushing and screening; the invention uses the high-temperature thermal converter slag as a binding phase to bind the iron-containing raw material to prepare the sinter without using solid fuel and flux, can fully recover the waste heat and calcium resources of the high-temperature thermal converter slag, reduce the environmental pollution and reduce the production cost of the sinter.
Description
Technical field
The present invention relates to metallurgical technology field more particularly to it is a kind of using hot vessel slag be Binder Phase prepare sinter
Method.
Background technique
Vessel slag is the industrial solid wastes generated in a kind of convertor steelmaking process.1 ton of steel of every production want by-product 0.1~
0.13 ton of vessel slag, temperature is relatively high, reaches 1300 DEG C~1450 DEG C or so, heat content also very abundant, vessel slag per ton
About contain (1.26~1.88) × 106The sensible heat of kJ is equivalent to the heat of 45~60kg standard coal generation.Wherein also contain 15%
Therefore~25% metallic iron (MFe) and a large amount of beneficial element calcium, magnesium and silicon etc. are increased to vessel slag heat and physical resources
Recycling, become reduce steel mill's smelting cost main means.Currently, vessel slag main methods are by hot converter
Slag carry out it is cooling after by being crushed, sieve repeatedly, magnetic separation, be used after extracting metal therein, usually handle again
Vessel slag afterwards is for ground backfill, urban road laying or for making cement, water purification agent and steel slag fertilizer etc..This processing method
Making the sensible heat of vessel slag can not recycle, and cause the huge waste of the energy.
Sinter mainly uses Iron Ore Powder, flux and solid fuel to be prepared at present, under the conditions of exhausting, solid fuel
Burning makes Iron Ore Powder and flux part high temperature melting generate other unfused Iron Ore Powders of liquid phase bonding.Traditional sintering process is deposited
In following problem: 1) needing the fixed carbon with addition of about 3%~5% in sintering process, need to consume a large amount of coal resources；2) by
Fossil fuel has been used in sintering process, produces a large amount of generation SO2、NOX、COXEtc. atmosphere pollutions；3) need to consume calcium,
Magnesium resource coheres the needs of Iron Ore Powder to meet；4) formation efficiency is not high.
Application No. is the Chinese patents of CN200780047831.2 to disclose a kind of " side returned mine using corona treatment
Method and device " is returned mine by using plasma fusing and cohesion come the bonding that makes to return mine, but since plasma temperature is excessively high,
It is capable of the heat of 10000 DEG C or higher high temperature, is easy to produce ion vaporized state, temperature control is uneven, and it is
It returns mine suitable for processing, fine iron ore cannot be handled.
Summary of the invention
The present invention provides a kind of methods for preparing sinter using hot vessel slag for Binder Phase, fire without using solid
It is that Binder Phase to bond iron-bearing material prepares sinter with the hot vessel slag of high temperature under conditions of material and flux, it can be abundant
The waste heat and calcium resource for recycling the hot vessel slag of high temperature, reduce environmental pollution, and reduce sinter production cost.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A method of sinter being prepared for Binder Phase using hot vessel slag, is included the following steps:
1) burdening calculation: based on mass fraction, by following component content in prepared sinter or parameter be limitation because
Element carries out proportion calculating to hot vessel slag and ferrous material；TFe 40%~65%, CaO/SiO2=1.5~4.0, CaO+
MgO/SiO2+Al2O3Range be=1.75~4.20, P2O5≤ 0.2%；
2) the pre-heat treatment: the pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, removes chalybeate
Free water and molecular water in material, by ferrous material preheating temperature to 200~1000 DEG C；
3) first time stone: in the ferrous material spreading to container after the pre-heat treatment, smooth charge level, first time spreading
Ferrous material thickness of feed layer is 20~50mm；
4) pour and cover: the hot vessel slag of high temperature is uniformly poured be layed onto it is smooth after ferrous material surface, hot converter slag charge
Layer is with a thickness of 5~10mm；
5) second of stone: on the ferrous material spreading after the pre-heat treatment to hot converter slag material layer, smooth charge level,
The ferrous material thickness of feed layer of secondary spreading is 50~100mm；
6) compacting sintering: pressure treatment is carried out to sinter bed using press machine, pressure limit is 10t~80t；And pressure maintaining
5~10min is to bond bonding iron-bearing material sinter is made with hot vessel slag；
7) cooling: the sinter after compacting being cooled to 200 DEG C or less using cold wind；
8) crushing and screening: sinter after cooling is by broken crusher machine, then sieves through grade sieve, finally obtains finished product
Sinter.
Mass percent of the state vessel slag in sinter is 15%~60%.
The ferrous material is magnetic iron ore, bloodstone, limonite, siderite, BF return fines, sinter return fine, metallurgical dust sludge
In a kind and two or more any combination.
The granularmetric composition of the ferrous material is that 1-3mm accounts for 50% or more total amount quality.
The granularmetric composition of the ferrous material is that 1~3mm accounts for 50% or more total amount quality.
The temperature range of the hot vessel slag is 1300~1600 DEG C, and R coefficient of stabilization is 95% or more.
Compared with prior art, the beneficial effects of the present invention are:
Present invention combination vessel slag and sintering ore production technology reapective features, using calcium oxide resource in vessel slag as
Binder Phase directly bonds ferrous material and prepares sinter, and the waste heat of vessel slag is not only utilized, and take full advantage of wherein iron,
Calcium resource reduces vessel slag environmental pollution, while having saved carbon resource used in sintering, prevents sintering process to atmosphere
Ironmaking and STEELMAKING PRODUCTION old is greatly lowered in environmental pollution, opens a calcium, magnesium resource resource is followed inside iron and steel enterprise
The new route that ring utilizes.
Detailed description of the invention
Fig. 1 is a kind of process flow of method for preparing sinter for Binder Phase using hot vessel slag of the present invention
Figure.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, a kind of method for preparing sinter using hot vessel slag for Binder Phase of the present invention, including such as
Lower step:
1) burdening calculation: based on mass fraction, by following component content in prepared sinter or parameter be limitation because
Element carries out proportion calculating to hot vessel slag and ferrous material；TFe 40%~65%, CaO/SiO2=1.5~4.0, CaO+
MgO/SiO2+Al2O3Range be=1.75~4.20, P2O5≤ 0.2%；
2) the pre-heat treatment: the pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, removes chalybeate
Free water and molecular water in material, by ferrous material preheating temperature to 200~1000 DEG C；
3) first time stone: in the ferrous material spreading to container after the pre-heat treatment, smooth charge level, first time spreading
Ferrous material thickness of feed layer is 20~50mm；
4) pour and cover: the hot vessel slag of high temperature is uniformly poured be layed onto it is smooth after ferrous material surface, hot converter slag charge
Layer is with a thickness of 5~10mm；
5) second of stone: on the ferrous material spreading after the pre-heat treatment to hot converter slag material layer, smooth charge level,
The ferrous material thickness of feed layer of secondary spreading is 50~100mm；
6) compacting sintering: pressure treatment is carried out to sinter bed using press machine, pressure limit is 10t~80t；And pressure maintaining
5~10min is to bond bonding iron-bearing material sinter is made with hot vessel slag；
7) cooling: the sinter after compacting being cooled to 200 DEG C or less using cold wind；
8) crushing and screening: sinter after cooling is by broken crusher machine, then sieves through grade sieve, finally obtains finished product
Sinter.
Mass percent of the state vessel slag in sinter is 15%~60%.
The ferrous material is magnetic iron ore, bloodstone, limonite, siderite, BF return fines, sinter return fine, metallurgical dust sludge
In a kind and two or more any combination.
The granularmetric composition of the ferrous material is that 1-3mm accounts for 50% or more total amount quality.
The granularmetric composition of the ferrous material is that 1~3mm accounts for 50% or more total amount quality.
The temperature range of the hot vessel slag is 1300~1600 DEG C, and R coefficient of stabilization is 95% or more.
Following embodiment is implemented under the premise of the technical scheme of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
Not mentionleting alone bright is conventional method.
[embodiment 1]
It is limiting factor to hot vessel slag and ferrous material by following component content in prepared sinter or parameter
Proportion calculating is carried out, hot vessel slag mass percent in sinter is 20%, it calculates and weighs ferrous material, ferrous material
Granularmetric composition is that 1~3mm accounts for total amount quality 60%, and the temperature of hot vessel slag is 1500 DEG C, R (CaO/SiO2)=2.91.
The pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, in evaporation heating ferrous material from
By water and molecular water, by ferrous material preheating temperature to 700 DEG C or so；Again ferrous material spreading after the pre-heat treatment to container
It is interior, while smooth surface of material, the thickness of feed layer of first time spreading ferrous material are 20mm；Hot vessel slag high temperature is uniform
Pour be layed onto it is smooth after the ferrous material bed of material on, the thickness of feed layer of hot vessel slag is 5mm；Again the chalybeate after the pre-heat treatment
Expect on spreading to the bed of material of hot vessel slag, while smooth surface of material, the ferrous material thickness of feed layer of second of spreading are
50mm。
Pressure treatment, pressure 10t are carried out using press machine；Sinter is made after pressure maintaining 5min；It will be compacted using cold wind
Sinter afterwards is cooled to 200 DEG C hereinafter, sinter after cooling passes through broken crusher machine, then sieves through grade sieve, finally
Obtain the finished product sinter of certain particle size grade.The chemical component and performance of finished product sinter are shown in Table 1, table 2 respectively.
[embodiment 2]
It is limiting factor to hot vessel slag and ferrous material by following component content in prepared sinter or parameter
Proportion calculating is carried out, hot vessel slag mass percent in sinter is 30%, it calculates and weighs ferrous material, ferrous material
Granularmetric composition is that 1~3mm accounts for total amount quality 65%, and the temperature of hot vessel slag is 1400 DEG C, R (CaO/SiO2)=2.60.
The pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, in evaporation heating ferrous material from
By water and molecular water, by ferrous material preheating temperature to 500 DEG C or so；Again ferrous material spreading after the pre-heat treatment to container
It is interior, while smooth surface of material, the thickness of feed layer of first time spreading ferrous material are 50mm；Hot vessel slag high temperature is uniform
Pour be layed onto it is smooth after the ferrous material bed of material on, the thickness of feed layer of hot vessel slag is 10mm；Again the iron content after the pre-heat treatment
On material spreading to the bed of material of hot vessel slag, while smooth surface of material, the ferrous material thickness of feed layer of second of spreading are
100mm。
Pressure treatment, pressure 80t are carried out using press machine；Sinter is made after pressure maintaining 10min；It will be compacted using cold wind
Sinter afterwards is cooled to 200 DEG C hereinafter, sinter after cooling passes through broken crusher machine, then sieves through grade sieve, finally
Obtain the finished product sinter of certain particle size grade.The chemical component and performance of finished product sinter are shown in Table 1, table 2 respectively.
[embodiment 3]
It is limiting factor to hot vessel slag and ferrous material by following component content in prepared sinter or parameter
Proportion calculating is carried out, hot vessel slag mass percent in sinter is 40%, it calculates and weighs ferrous material, ferrous material
Granularmetric composition is that 1~3mm accounts for total amount quality 70%, and the temperature of hot vessel slag is 1600 DEG C, R (CaO/SiO2)=3.91.
The pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, in evaporation heating ferrous material from
By water and molecular water, by ferrous material preheating temperature to 300 DEG C or so；Again ferrous material spreading after the pre-heat treatment to container
It is interior, while smooth surface of material, the thickness of feed layer of first time spreading ferrous material are 50mm；Hot vessel slag high temperature is uniform
Pour be layed onto it is smooth after the ferrous material bed of material on, the thickness of feed layer of hot vessel slag is 5mm；Again the chalybeate after the pre-heat treatment
Expect on spreading to the bed of material of hot vessel slag, while smooth surface of material, the ferrous material thickness of feed layer of second of spreading are
80mm。
Pressure treatment, pressure 50t are carried out using press machine；Sinter is made after pressure maintaining 5min；It will be compacted using cold wind
Sinter afterwards is cooled to 200 DEG C hereinafter, sinter after cooling passes through broken crusher machine, then sieves through grade sieve, finally
Obtain the finished product sinter of certain particle size grade.The chemical component and performance of finished product sinter are shown in Table 1, table 2 respectively.
1 sinter chemical composition % of table
| Embodiment | TFe | FeO | MnO | P2O5 | R(CaO/SiO2) |
| Embodiment 1 | 57.60 | 48.44 | 0.28 | 0.16 | 2.31 |
| Embodiment 2 | 53.13 | 44.65 | 0.42 | 0.18 | 2.50 |
| Embodiment 3 | 48.56 | 40.83 | 0.56 | 0.19 | 2.63 |
2 sinter high temperature metallurgical properties of table
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of method for preparing sinter using hot vessel slag for Binder Phase, which comprises the steps of:
1) burdening calculation: being limiting factor pair by following component content in prepared sinter or parameter based on mass fraction
Hot vessel slag and ferrous material carry out proportion calculating；TFe 40%~65%, CaO/SiO2=1.5~4.0, CaO+MgO/
SiO2+Al2O3Range be=1.75~4.20, P2O5≤ 0.2%；Mass percent of the hot vessel slag in sinter be
15%~60%；
2) the pre-heat treatment: the pre-heat treatment is carried out to ferrous material using the high-temperature flue gas of cooling sinter, is removed in ferrous material
Free water and molecular water, by ferrous material preheating temperature to 200~1000 DEG C；
3) first time stone: in the ferrous material spreading to container after the pre-heat treatment, smooth charge level, the iron content of first time spreading
Material thickness of feed layer is 20~50mm；
4) pour and cover: the hot vessel slag of high temperature is uniformly poured be layed onto it is smooth after ferrous material surface, hot converter slag material layer is thick
Degree is 5~10mm；
5) second of stone: on the ferrous material spreading after the pre-heat treatment to hot converter slag material layer, smooth charge level, second
The ferrous material thickness of feed layer of spreading is 50~100mm；
6) compacting sintering: pressure treatment is carried out to sinter bed using press machine, pressure limit is 10t~80t；And pressure maintaining 5~
10min is to bond bonding iron-bearing material sinter is made with hot vessel slag；
7) cooling: the sinter after compacting being cooled to 200 DEG C or less using cold wind；
8) crushing and screening: sinter after cooling is by broken crusher machine, then sieves through grade sieve, finally obtains finished product sintering
Mine.
2. a kind of method for preparing sinter using hot vessel slag for Binder Phase according to claim 1, feature exist
In, the ferrous material be magnetic iron ore, bloodstone, limonite, siderite, BF return fines, sinter return fine, 1 in metallurgical dust sludge
Kind and two or more any combination.
3. a kind of method for preparing sinter using hot vessel slag for Binder Phase according to claim 1, feature exist
In the granularmetric composition of the ferrous material is that 1-3mm accounts for 50% or more total amount quality.
4. a kind of method for preparing sinter using hot vessel slag for Binder Phase according to claim 1, feature exist
In the granularmetric composition of the ferrous material is that 1~3mm accounts for 50% or more total amount quality.
5. a kind of method for preparing sinter using hot vessel slag for Binder Phase according to claim 1, feature exist
In the temperature range of the hot vessel slag is 1300~1600 DEG C, and R coefficient of stabilization is 95% or more.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272307A (en) * | 1975-12-15 | 1977-06-16 | Okura Akimitsu | Process for production of sintered ore making use of converter slag |
| JPS5457403A (en) * | 1977-10-17 | 1979-05-09 | Yoshizawa Sekkai Kogyo Kk | Production of ore lump |
| JPH09279260A (en) * | 1996-04-16 | 1997-10-28 | Nippon Steel Corp | Method for agglomerating iron ore |
| JPH10314799A (en) * | 1997-05-20 | 1998-12-02 | Kawasaki Steel Corp | Method for treating oil bearing sludge having high iron content |
| CN101831539B (en) * | 2010-05-20 | 2012-11-28 | 牛庆君 | Method for producing artificial rich iron ore from copper smelting waste slag by using new sintering technology |
| CN103045857B (en) * | 2012-12-28 | 2014-12-31 | 柳州钢铁股份有限公司 | Production method for sintering converter granulated slag to produce blast-furnace smelting sintered ore |
| JP6020832B2 (en) * | 2013-12-12 | 2016-11-02 | Ｊｆｅスチール株式会社 | Sintering raw material manufacturing method |
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