CN107099631A - A kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge and its blast furnace smelting method - Google Patents
A kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge and its blast furnace smelting method Download PDFInfo
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- CN107099631A CN107099631A CN201710423190.1A CN201710423190A CN107099631A CN 107099631 A CN107099631 A CN 107099631A CN 201710423190 A CN201710423190 A CN 201710423190A CN 107099631 A CN107099631 A CN 107099631A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
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Abstract
The invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge and its smelting process, the furnace charge includes following components：The granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight is 10~50mm lump ore；Sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering is made；TFe mass content is 40~45% in lump ore, and SiO2Mass content be 20~25%.The furnace charge realizes the intensification of smelting process in BF of chromic vanadium-titanium ferroferrite, higher, the relatively low fuel ratio of blast furnace process usage factor, and it is higher to smelt [Cr] content in the obtained pig iron containing Cr-V-Ti.The capacity factor of a blast furnace of furnace charge is 2.45~2.55t/m3.d；[Cr] mass content is 0.5~0.8% in the pig iron containing Cr-V-Ti；Fuel ratio is 550~560kg/m3.d。
Description
Technical field
The present invention relates to ironmaking technology field, more particularly to a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge and its blast furnace
Smelting process.
Background technology
High-chromic vanadium-titanium ferroferrite is a kind of typical many metal intergrowth mineral production resources, with high comprehensive utilization valency
Value.There is abundant high-chromic vanadium-titanium ferroferrite resource in Panzhihua west area, and it contains Cr2O3Up to 0.8~1.0%, TiO2Content
Up to 11~12%.
At present, the main method of v-bearing titanomagnetite smelting is that sefstromite concentrate and common fine ore are sintered and produce sintering
Ore deposit, sefstromite concentrate pelletizing and bentonite produce oxide pellet, then sintering deposit, pellet and a small amount of lump ore are pressed necessarily
Ratio, is added in blast furnace together with coke, and blowing air down combustion of coke produces reducing gas, and reducing gas rises and furnace charge
Decline is reduced ore, is then dissolved and is dropped onto cupola well completion ironmaking smelting process, realizes the separation of slag, iron.But should
The blast furnace process usage factor of method is relatively low, and the rate of recovery of chromium is relatively low.
The content of the invention
In view of this, should it is an object of the invention to provide a kind of iron charge containing Cr-V-Ti and its blast furnace smelting method
The blast furnace process usage factor of furnace charge is higher, and it is higher to smelt [Cr] content in the obtained pig iron containing Cr-V-Ti.
The invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following components：
The granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight is 10~50mm lump ore；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron
Ore deposit, fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%.
Preferably, the basicity of the sintering deposit is 1.7~1.8.
Preferably, the fuel is selected from coke powder；The flux is selected from lime stone and/or quick lime..
Preferably, Cr in the chromium type v-ti magnetite concentrate2O3Mass content be 0.8~1.0%, TiO2Quality contain
Measure as 11~12%.
Preferably, [Cr] 0.5~0.8% is contained in the pig iron containing Cr-V-Ti, [V] 0.3~0.4% and [Ti] 0.1~
0.2%.
Preferably, the sintering deposit is 55~58 by mass ratio:22~25:4.2~4.8:8~12 chromium type v-ti magnetite
Concentrate, common iron ore, fuel and flux sintering are made.
Preferably, v element and titanium elements are free of in the common iron ore.
The invention provides a kind of blast furnace smelting method of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following step
Suddenly：
By the granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight for 10~50mm lump ore wind-warm syndrome 1200~
TiO in 1250 DEG C, oxygen enrichment percentage 5~10% and clinker2Mass content 22~24% under conditions of carry out blast furnace process, contained
The Cr-V-Ti pig iron；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron
Ore deposit, fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%.
Preferably, the basicity of the clinker is 1.10~1.15.
The invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following components：85~95 parts by weight
Sintering deposit and 5~15 parts by weight granularity be 10~50mm lump ore；The sintering deposit is 50~60 by mass ratio:20~
30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering is made；TFe matter in the lump ore
Amount content is 40~45%, SiO2Mass content be 20~25%.The furnace charge under the synergy of the component of above-mentioned content,
The intensification of smelting process in BF of chromic vanadium-titanium ferroferrite, higher, the relatively low fuel ratio of blast furnace process usage factor are realized, and smelts system
[Cr] content is higher in the pig iron containing Cr-V-Ti obtained.Test result indicates that：The capacity factor of a blast furnace is 2.45~2.55t/m3.d；Contain
[Cr] mass content is 0.5~0.8% in the Cr-V-Ti pig iron；Fuel ratio is 550~560kg/m3.d。
Embodiment
The invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following components：
The granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight is 10~50mm lump ore；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron
Ore deposit, fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%.
The furnace charge realizes the blast furnace reinforcing smelting of chromic vanadium-titanium ferroferrite under the synergy of the component of above-mentioned content
Refining, relatively low fuel ratio, and it is higher to smelt [Cr] content in the obtained pig iron containing Cr-V-Ti.Test result indicates that：Blast furnace is utilized
Coefficient is 2.45~2.55t/m3.d；[Cr] mass content is 0.5~0.8% in the pig iron containing Cr-V-Ti；Fuel ratio be 550~
560kg/m3.d。
In the present invention, the chromic vanadium-titanium ferroferrite blast furnace process furnace charge includes the sintering deposit of 85~95 parts by weight；Institute
It is 50~60 that sintering deposit, which is stated, by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore, fuel and
Flux sintering is made.In the present invention, the basicity of the sintering deposit is preferably 1.7~1.8.
In the present invention, the raw material of the sintering deposit includes chromium type v-ti magnetite concentrate.The chromium type v-ti magnetite concentrate
Middle Cr2O3Mass content be preferably 0.8~1.0%, TiO2Mass content be preferably 11~12%.
In the present invention, the raw material of the sintering deposit includes common iron ore.V element and titanium are free of in the common iron ore
Element.
In the present invention, the raw material of the sintering deposit includes fuel.The fuel is preferably selected from coke powder.
In the present invention, the raw material of the sintering deposit includes flux.The flux is preferably selected from lime stone and/or raw stone
Ash.
In the present invention, the mass ratio of the chromium type v-ti magnetite concentrate, common iron ore, fuel and flux is 50~60:
20~30:4~5:7~15, preferably 50~58:22~30:4.2~4.8:8~12, more preferably 55~58:22~25：
4.2~4.8:8~12.In a particular embodiment of the present invention, the chromium type v-ti magnetite concentrate, common iron ore, fuel and molten
The mass ratio of agent is 50:22:4.2:8 or 52:25:4.4:9 or 55：28：4.6：10 or 58:30:4.8:12.
In the present invention, the firing temperature of the chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering is preferred
For 1010~1060 DEG C；The chromium type v-ti magnetite concentrate, common iron ore, the time of fuel and flux sintering is preferably 0.3~
0.5h。
In the present invention, the granularity of the chromic vanadium-titanium ferroferrite blast furnace process furnace charge including 5~15 parts by weight for 10~
50mm lump ore；TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%, wherein TFe
For full iron in lump ore.
In the present invention, [Cr] 0.5~0.8%, [V] 0.3~0.4% and [Ti] 0.1 are contained in the pig iron containing Cr-V-Ti
~0.2%.
The invention provides a kind of blast furnace smelting method of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following step
Suddenly：
By the granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight for 10~50mm lump ore wind-warm syndrome 1200~
TiO in 1250 DEG C, oxygen enrichment percentage 5~10% and clinker2Mass content 22~24% under conditions of carry out blast furnace process, contained
The Cr-V-Ti pig iron；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron
Ore deposit, fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%
This method passes through the TiO in 1200~1250 DEG C of wind-warm syndrome, oxygen enrichment percentage 5~10% and clinker2Mass content 22~
Under conditions of 24% in sintering deposit smelting process the specified particle size of compatibility certain content lump ore, realize chromium type v-ti magnetite
The intensification of smelting process in BF of ore deposit, blast furnace process usage factor is higher, and the chromium content in the obtained pig iron containing Cr-V-Ti is higher.
In the present invention, CaO and SiO in the basicity of the clinker, i.e. clinker2Mass ratio is preferably 1.10~1.15.
The invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following components：85~95 parts by weight
Sintering deposit and 5~15 parts by weight granularity be 10~50mm lump ore；The sintering deposit is 50~60 by mass ratio:20~
30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering is made；TFe matter in the lump ore
Amount content is 40~45%, SiO2Mass content be 20~25%.The furnace charge under the synergy of the component of above-mentioned content,
The intensification of smelting process in BF of chromic vanadium-titanium ferroferrite is realized, blast furnace process usage factor is higher, and smelt obtained containing Cr-V-Ti
[Cr] content is higher in the pig iron.Test result indicates that：The capacity factor of a blast furnace is 2.45~2.55t/m3.d；In the pig iron containing Cr-V-Ti
[Cr] mass content is 0.5~0.8%；Fuel ratio is 550~560kg/m3.d。
In order to further illustrate the present invention, a kind of chromic vanadium-titanium ferroferrite provided with reference to embodiment the present invention is high
Stove smelting furnace material and its blast furnace smelting method are described in detail, but they can not be interpreted as to the scope of the present invention
Limit.
Embodiment 1
The high chrome alum that will be made after high-chromic vanadium ilmenite concentrate powder and common Iron Ore Powder and auxiliary material dispensing in sintering deposit, sintering deposit
Titanium ore quality proportioning is controlled 50%, common Iron Ore Powder 30%, auxiliary material：Coke powder 4.8%, solvent：Lime stone and quick lime total amount
For 12%, the basicity of sintering deposit is controlled between 1.7 to 1.8；
85% sintering deposit and 15% granularity are carried out for 10~50mm common lump ore supplying blast furnace by mass percentage
Smelt, TFe mass contents are 40~45% and SiO in the common lump ore2Mass content is 20~25%；Smelt specific ginseng
Number：1220 DEG C of wind-warm syndrome, oxygen enrichment percentage reaches 6%, clinker (TiO2) 22%, blast furnace basicity of slag is controlled 1.10~1.15, is contained
The Cr-V-Ti pig iron.
The present invention carries out the test of chromium mass content to the pig iron containing Cr-V-Ti prepared by embodiment 1 and the capacity factor of a blast furnace enters
Row is calculated, and the results are shown in Table 1, table 1 is the quality of chromium in the experiment parameter of the embodiment of the present invention 1~4, the pig iron containing Cr-V-Ti of preparation
Content and capacity factor of a blast furnace result of calculation：
The mass content and blast furnace of chromium in the experiment parameter of the embodiment of the present invention 1~4 of table 1, the pig iron containing Cr-V-Ti prepared
Usage factor result of calculation
From table 1, as high-chromic vanadium ilmenite concentrate proportioning is improved in sintering, common ore deposit proportioning reduction and blast furnace contain chrome alum
Titanium sintering deposit proportioning is improved, and the reduction of common lump ore ratio, the increase of wind-warm syndrome, the raising of oxygen enrichment percentage realizes blast furnace process
Reinforcing, usage factor increase, fuel ratio reduction, the increase of molten iron [Cr] content is that the follow-up Cr elements that extracted from molten iron are created
Condition.
Embodiment 2
The high chrome alum that will be made after high-chromic vanadium ilmenite concentrate powder and common Iron Ore Powder and auxiliary material dispensing in sintering deposit, sintering deposit
Titanium ore quality proportioning is controlled 52%, common Iron Ore Powder 28%, auxiliary material：Coke powder 4.6%, solvent：Lime stone and quick lime total amount
For 10%, the basicity of sintering deposit is controlled between 1.7 to 1.8；
88% sintering deposit and 12% granularity are carried out for 10~50mm common lump ore supplying blast furnace by mass percentage
Smelt, TFe mass contents are 40~45% and SiO in the common lump ore2Mass content is 20~25%；Smelt specific ginseng
Number：1230 DEG C of wind-warm syndrome, oxygen enrichment percentage reaches 7%, clinker (TiO2) 22.5%, blast furnace basicity of slag is controlled 1.10~1.15, is obtained
The pig iron containing Cr-V-Ti.
The present invention carries out the test of chromium mass content to the pig iron containing Cr-V-Ti prepared by embodiment 2 and the capacity factor of a blast furnace enters
Row is calculated, and the results are shown in Table 1, table 1 is the quality of chromium in the experiment parameter of the embodiment of the present invention 1~4, the pig iron containing Cr-V-Ti of preparation
Content and capacity factor of a blast furnace result of calculation.
Embodiment 3
The high chrome alum that will be made after high-chromic vanadium ilmenite concentrate powder and common Iron Ore Powder and auxiliary material dispensing in sintering deposit, sintering deposit
Titanium ore quality proportioning is controlled 55%, common Iron Ore Powder 25%, auxiliary material：Coke powder 4.4%, solvent：Lime stone and quick lime total amount
For 9%, the basicity of sintering deposit is controlled between 1.7 to 1.8；
90% sintering deposit and 10% granularity are carried out for 10~50mm common lump ore supplying blast furnace by mass percentage
Smelt, TFe mass contents are 40~45% and SiO in the common lump ore2Mass content is 20~25%；Smelt specific ginseng
Number：1240 DEG C of wind-warm syndrome, oxygen enrichment percentage reaches 8%, clinker (TiO2) 22.8%, blast furnace basicity of slag is controlled 1.10~1.15, is obtained
The pig iron containing Cr-V-Ti.
The present invention carries out the test of chromium mass content to the pig iron containing Cr-V-Ti prepared by embodiment 3 and the capacity factor of a blast furnace enters
Row is calculated, and the results are shown in Table 1, table 1 is the quality of chromium in the experiment parameter of the embodiment of the present invention 1~4, the pig iron containing Cr-V-Ti of preparation
Content and capacity factor of a blast furnace result of calculation
Embodiment 4
The high chrome alum that will be made after high-chromic vanadium ilmenite concentrate powder and common Iron Ore Powder and auxiliary material dispensing in sintering deposit, sintering deposit
Titanium ore quality proportioning is controlled 58%, common Iron Ore Powder 22%, auxiliary material：Coke powder 4.2%, solvent：Lime stone and quick lime total amount
For 9%, the basicity of sintering deposit is controlled between 1.7 to 1.8；
95% sintering deposit and 5% granularity are subjected to smelting for 10~50mm common lump ore supplying blast furnace by mass percentage
TFe mass contents are 40~45% and SiO in refining, the common lump ore2Mass content is 20~25%；Smelt design parameter：
1250 DEG C of wind-warm syndrome, oxygen enrichment percentage reaches 9%, clinker (TiO2) 23.2%, blast furnace basicity of slag is controlled 1.10~1.15, obtains containing chromium
Vanadium titanium iron.
The present invention carries out the test of chromium mass content to the pig iron containing Cr-V-Ti prepared by embodiment 4 and the capacity factor of a blast furnace enters
Row is calculated, and the results are shown in Table 1, table 1 is the quality of chromium in the experiment parameter of the embodiment of the present invention 1~4, the pig iron containing Cr-V-Ti of preparation
Content and capacity factor of a blast furnace result of calculation.
As seen from the above embodiment, the invention provides a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including it is following
Component：The granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight is 10~50mm lump ore；The sintering deposit is by quality
Than for 50~60:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering is made；Institute
The mass content for stating TFe in lump ore is 40~45%, SiO2Mass content be 20~25%.Group of the furnace charge in above-mentioned content
Under the synergy divided, the intensification of smelting process in BF of chromic vanadium-titanium ferroferrite is realized, blast furnace process usage factor is higher, fuel ratio
Decline, and it is higher to smelt [Cr] content in the obtained pig iron containing Cr-V-Ti.Test result indicates that：The capacity factor of a blast furnace be 2.45~
2.55t/m3.d；[Cr] mass content is 0.5~0.8% in the pig iron containing Cr-V-Ti；Fuel ratio is 550~560kg/m3.d。
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, including following components：
The granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight is 10~50mm lump ore；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore,
Fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%.
2. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that the alkali of the sintering deposit
Spend for 1.7~1.8.
3. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that the fuel is selected from Jiao
Powder；The flux is selected from lime stone and/or quick lime.
4. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that the chromium type vanadium titanium magnetic
Cr in iron ore concentrate2O3Mass content be 0.8~1.0%, TiO2Mass content be 11~12%.
5. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that described containing Cr-V-Ti life
Contain [Cr] 0.5~0.8%, [V] 0.3~0.4% and [Ti] 0.1~0.2% in iron.
6. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that the sintering deposit is by matter
Amount is than being 55~58:22~25:4.2~4.8:8~12 chromium type v-ti magnetite concentrate, common iron ore, fuel and flux sintering
It is made.
7. chromic vanadium-titanium ferroferrite blast furnace process furnace charge according to claim 1, it is characterised in that in the common iron ore
Without v element and titanium elements.
8. a kind of blast furnace smelting method of chromic vanadium-titanium ferroferrite blast furnace process furnace charge, comprises the following steps：
By the granularity of the sintering deposit of 85~95 parts by weight and 5~15 parts by weight for 10~50mm lump ore in wind-warm syndrome 1200~1250
DEG C, TiO in oxygen enrichment percentage 5~10% and clinker2Mass content 22~24% under conditions of carry out blast furnace process, obtain contain chrome alum
The titanium pig iron；
The sintering deposit is 50~60 by mass ratio:20~30:4~5:7~15 chromium type v-ti magnetite concentrate, common iron ore,
Fuel and flux sintering are made；
TFe mass content is 40~45%, SiO in the lump ore2Mass content be 20~25%.
9. blast furnace smelting method according to claim 8, it is characterised in that the basicity of the clinker is 1.10~1.15.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959255A (en) * | 2022-05-23 | 2022-08-30 | 武汉钢铁有限公司 | Lump ore pretreatment method based on preparation of sinter ore |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732655A (en) * | 2011-04-13 | 2012-10-17 | 攀钢集团钢铁钒钛股份有限公司 | Blast furnace ironmaking method |
| CN104673951A (en) * | 2015-03-20 | 2015-06-03 | 攀钢集团西昌钢钒有限公司 | Blast furnace smelting method by using vanadium-titanium two-phase sintering ore |
| CN105420430A (en) * | 2015-11-26 | 2016-03-23 | 攀钢集团攀枝花钢钒有限公司 | Vanadium titano-magnetite blast furnace burden structure and blast furnace smelting method |
| CN105803141A (en) * | 2016-04-06 | 2016-07-27 | 攀钢集团攀枝花钢铁研究院有限公司 | High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method |
-
2017
- 2017-06-07 CN CN201710423190.1A patent/CN107099631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732655A (en) * | 2011-04-13 | 2012-10-17 | 攀钢集团钢铁钒钛股份有限公司 | Blast furnace ironmaking method |
| CN104673951A (en) * | 2015-03-20 | 2015-06-03 | 攀钢集团西昌钢钒有限公司 | Blast furnace smelting method by using vanadium-titanium two-phase sintering ore |
| CN105420430A (en) * | 2015-11-26 | 2016-03-23 | 攀钢集团攀枝花钢钒有限公司 | Vanadium titano-magnetite blast furnace burden structure and blast furnace smelting method |
| CN105803141A (en) * | 2016-04-06 | 2016-07-27 | 攀钢集团攀枝花钢铁研究院有限公司 | High-chrome vanadium-titanium magnetite blast furnace smelting charging material and blast furnace smelting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114959255A (en) * | 2022-05-23 | 2022-08-30 | 武汉钢铁有限公司 | Lump ore pretreatment method based on preparation of sinter ore |
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Application publication date: 20170829 |