CN108796252A - A kind of production method of pure micro-carbon ferromanganese - Google Patents
A kind of production method of pure micro-carbon ferromanganese Download PDFInfo
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- CN108796252A CN108796252A CN201810612387.4A CN201810612387A CN108796252A CN 108796252 A CN108796252 A CN 108796252A CN 201810612387 A CN201810612387 A CN 201810612387A CN 108796252 A CN108796252 A CN 108796252A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
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Abstract
The application discloses a kind of production method of pure micro-carbon ferromanganese, including S1, manganese ore, alloy and lime is put into the first refining furnace and is refined, and obtains the first hot liquid manganese slag；S2, the first liquid manganese slag is put into the first shaking ladle, siliceous reducer is added, shaken refining 5-9min, obtain intermediate alloy of hot liquid；S3, manganese ore, alloy and lime are put into the second refining furnace and are refined, obtain pure micro-carbon ferromanganese and the second hot liquid manganese slag；S4, intermediate alloy of hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-10min, obtains the secondary intermediate alloy of hot liquid；S5, the secondary intermediate alloy of hot liquid is put into the second refining furnace, manganese ore is added and lime continues to refine, obtains pure micro-carbon ferromanganese and the second hot liquid manganese slag again, repeats S4-S5.The application adds siliceous reducer using hot manganese slag and shakes refining with shaking ladle, produces the pure intermediate manganese alloy of low-carbon, technological process is simple, operation is easy, low energy consumption.
Description
Technical field
This application involves metallurgical technology field, more particularly to a kind of production method of pure micro-carbon ferromanganese.
Background technology
Traditional micro-carbon ferromanganese produces high silicon silicomanganese using mineral hot furnace, and high silicon silicomanganese silicon mass fraction reaches 28% or more,
Carbon in silicomangan can be just set to be reduced to 0.1% hereinafter, but extremely unstable.It is difficult with the high silicon silicomanganese of mine heat furnace smelting, one
A little capacity are less than the open mine heat furnace smelting relative maturity of 12500KVA, but open mine heat furnace smelting does not generate coal gas, wave
Take greatly, is unfavorable for the comprehensive utilization of the energy.The large-scale closed high silicon silicomanganese of mine heat furnace smelting is extremely difficult, even low capacity
Mineral hot furnace produces high silicon silicomanganese, it is also desirable to calm carbon drop, it is difficult to which direct heat is blended into stove, and the high silicon silicomanganese of solid-state is needed to be crushed to properly
Granularity cold conditions refines, and energy consumption, cost, loss are high.In conclusion the micro- carbon of simple process steady production can not be used in the prior art
Ferromanganese.
Invention content
The application's is designed to provide a kind of production method of pure micro-carbon ferromanganese, to solve not adopting in the prior art
The problem of with simple process steady production micro-carbon ferromanganese.
According to an embodiment of the present application, a kind of production method of pure micro-carbon ferromanganese is provided, is included the following steps：
S1, manganese ore, alloy and lime are put into the first refining furnace and are refined, obtain the first hot liquid manganese slag；
S2, the first liquid manganese slag is put into the first shaking ladle, siliceous reducer is added, shaken refining 5-9min, obtain hydrothermal solution
Intermediate alloy of state；
S3, manganese ore, alloy and lime are put into the second refining furnace and are refined, obtain pure micro-carbon ferromanganese and the second hot liquid
Manganese slag；
S4, intermediate alloy of the hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-
10min obtains the secondary intermediate alloy of hot liquid；
S5, the secondary intermediate alloy of the hot liquid is put into the second refining furnace, manganese ore is added and lime continues to refine, then
It is secondary to obtain the pure micro-carbon ferromanganese and the second hot liquid manganese slag, repeat S4-S5.
Optionally, the alloy is silicomangan or high silicon silicomanganese.
Optionally, Si mass contents contain more than 72%, Fe mass contents less than 23%, C mass in the siliceous reducer
Amount is less than 0.3%, P mass contents less than 0.02%, and, the gross mass content of B, Ti, Zn and Pd are less than 0.1%.
Optionally, in the S1, the mass ratio of the manganese ore, the alloy and the lime is (12-13)：(12-13)：
(6-7) or (9-10)：(14-16)：(6-7).
Optionally, in the S3, the mass ratio of the alloy, the manganese ore and the lime is (4-5)：(8-10)：(4-
5)。
Further, the first hot liquid manganese cinder ladle includes following mass percent component：13-30%MnO, 26-32%
SiO2, 29-38%CaO, 1-3%MgO, 0-1%Fe, 2-6%Al2O3, surplus is impurity.
Further, Mn mass contents are higher than higher than 50%, Si mass contents in intermediate alloy of the hot liquid
30%, and, Fe mass contents are less than 16%.
Further, Mn mass contents are less than higher than 70%, Si mass contents in the secondary intermediate alloy of the hot liquid
10%, and, Fe mass contents are less than 11%.
Further, the power of first refining furnace and capacity are the 2-3 of the power and capacity of second refining furnace
Times, the volume of first shaking ladle is 1-2 times of the volume of second shaking ladle.
By above technical scheme it is found that the embodiment of the present application provides a kind of production method of pure micro-carbon ferromanganese, including with
Lower step：S1, manganese ore, alloy and lime are put into the first refining furnace and are refined, obtain the first hot liquid manganese slag；S2, will be described
First liquid manganese slag is put into the first shaking ladle, and siliceous reducer is added, and shakes refining 5-9min, obtains intermediate alloy of hot liquid；S3,
By manganese ore, alloy and lime are put into the second refining furnace and refine, and obtain pure micro-carbon ferromanganese and the second hot liquid manganese slag；S4, general
Intermediate alloy of the hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-10min, obtain hot liquid
Secondary intermediate alloy；S5, the secondary intermediate alloy of the hot liquid is put into the second refining furnace, manganese ore is added and lime continues essence
Refining, obtains the pure micro-carbon ferromanganese and the second hot liquid manganese slag, repeats S4-S5 again.The application utilizes hot
Manganese slag adds siliceous reducer and shakes refining by shaking ladle, produces the pure intermediate manganese alloy of low-carbon, alloy carbon can steady decrease
To 0.1%, intermediate manganese alloy reheating, which is converted, refines out carbon content less than 0.15% pure micro-carbon ferromanganese below.With conventional method phase
Than the application produces manganese alloy among micro- carbon using the silicon thermal response of refined ferromanganese liquid heat manganese slag, and hot intermediate manganese alloy can
Directly enter stove refining, simple and reliable using liquid manganese slag sensible heat technological process, operation is easy, and qualification rate may be up on 95%, and
Low energy consumption, and production cost is low.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the production method flow chart according to a kind of pure micro-carbon ferromanganese shown in the embodiment of the present application.
Specific implementation mode
Refering to fig. 1, the embodiment of the present application provides a kind of production method of pure micro-carbon ferromanganese, includes the following steps：
S1, manganese ore, alloy and lime are put into the first refining furnace and are refined, obtain the first hot liquid manganese slag；
S2, the first liquid manganese slag is put into the first shaking ladle, siliceous reducer is added, shaken refining 5-9min, obtain hydrothermal solution
Intermediate alloy of state；
S3, manganese ore, alloy and lime are put into the second refining furnace and are refined, obtain pure micro-carbon ferromanganese and the second hot liquid
Manganese slag；
S4, intermediate alloy of the hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-
10min obtains the secondary intermediate alloy of hot liquid；
S5, the secondary intermediate alloy of the hot liquid is put into the second refining furnace, manganese ore is added and lime continues to refine, then
It is secondary to obtain the pure micro-carbon ferromanganese and the second hot liquid manganese slag, repeat S4-S5.
The application adds siliceous reducer using hot manganese slag and shakes refining by shaking ladle, produces the pure intermediate manganese of low-carbon and closes
Gold, alloy carbon can steady decrease to 0.1%, intermediate manganese alloy reheating converts that refine out carbon content below pure less than 0.15%
Net micro-carbon ferromanganese.Compared with conventional method, the application is produced using the silicon thermal response of refined ferromanganese liquid heat manganese slag among micro- carbon
Manganese alloy, hot intermediate manganese alloy can directly enter stove refining, and simple and reliable using liquid manganese slag sensible heat technological process, operation is held
Easily, qualification rate may be up on 95%, and low energy consumption, and production cost is low.
In the pure micro-carbon ferromanganese of actual production, it is as follows：
Alloy is added in first refining furnace, and manganese ore and lime are refined to out in qualification until humble carbon ferromanganese, taps a blast furnace point
Slag, after being detached in humble carbon ferromanganese and the first hot liquid manganese slag, the first shaking ladle as two packet directly Sheng slag.First refining
The power of stove is 6300KVA, and the volume of the first shaking ladle is 15M3。
Wherein, when alloy is silicomangan, 12-13 tons of silicomangans, 12-13 tons of manganese can be added in the first refining hotplate body
Mine and 6-7 tons of limes.
When alloy is high silicon silicomanganese, 9-10 tons high silicon silicomanganese, 14-16 tons of manganese ores and 6- can be added in the first refining hotplate body
7 tons of limes.
The first hot liquid manganese slag mass percent is as shown in table 1 at this time.
Table 1
| MnO% | SiO2% | CaO% | MgO% | Fe% | Al2O3% | |
| First hot liquid manganese slag ingredient | 13-30 | 26-32 | 29-38 | 1-3 | <1 | 2-6 |
First shaking ladle is placed in reel cage, a certain amount of processed siliceous reducer anti-oxidation (according to manganese content) is added.
Wherein, siliceous reducer ingredient percent is as shown in table 2.
Table 2
| Si% | Fe% | C% | P% | B+Ti+Zn+Pb+Al% | |
| Reducing agent ingredient | >72 | <23% | <0.3 | <0.02 | <0.1 |
Refining 5-9min is shaken, skimming immediately shakes intermediate alloy of rear slag and hot liquid after being detached.
Shaking rear slag, mass percent range is as shown in table 3 at this time.
Table 3
| MnO% | SiO2% | CaO% | MgO% | Fe% | Al2O3% | |
| Shake rear manganese slag ingredient | 3-8 | 30-42 | 26-35 | 1-2 | 0.1 | 2-4 |
Intermediate alloy quality of obtained hot liquid be more than 2.9 tons, carbon content be less than 0.06%, by hot liquid it is primary in
Between alloy to pour into heat preservation ladle for use, it is discarded to shake rear slag.
Wherein, intermediate alloy mass percent range of hot liquid is as shown in table 4.
Table 4
| Mn% | Si% | Fe% | |
| Intermediate alloy ingredient of hot liquid | >50 | >30 | <16 |
Cooperate with the second refining furnace that 4-5 tons of alloys, 8-10 tons of manganese ores are added, 4-5 tons of limes are smelted micro-carbon ferromanganese, obtained pure
Micro-carbon ferromanganese and the second hot liquid manganese slag.It waits for that the second shaking ladle shakes to finish to tap a blast furnace, the second hot liquid manganese slag is skimmed into the second shaking ladle and put
It sets on reel cage, shakes and the intermediate alloy of hot liquid for pouring into heat preservation ladle shakes refining 6-10min again, it is big that skimming obtains quality
In 4.0 tons of secondary intermediate alloys of hot liquid.The power of second refining furnace is 3000KVA, and the volume of the second shaking ladle is 9M3。
Wherein, the secondary intermediate alloy mass percent range of hot liquid is as shown in table 5.
Table 5
| Mn% | Si% | Fe% | |
| The secondary intermediate alloy ingredient of hot liquid | >70 | <10 | <11 |
The secondary secondary intermediate alloy of the hot liquid for shaking refining is poured into the refining of the second refining furnace again, and adds 6-8 tons of manganese ores, 3-4
Ton lime obtains quality and is more than 4.5 tons of pure micro-carbon ferromanganeses.
Pure micro-carbon ferromanganese mass percent is as shown in table 6.
Table 6
Slag containing manganese after the refining of second refining furnace again waits for the first refining furnace refining manganese slag and shakes refining hot liquid once centre
Alloy recycles repeatedly, and it is discarded to shake rear slag.
By above technical scheme it is found that the embodiment of the present application provides a kind of production method of pure micro-carbon ferromanganese, including with
Lower step：S1, manganese ore, alloy and lime are put into the first refining furnace and are refined, obtain the first hot liquid manganese slag；S2, will be described
First liquid manganese slag is put into the first shaking ladle, and siliceous reducer is added, and shakes refining 5-9min, obtains intermediate alloy of hot liquid；S3,
By manganese ore, alloy and lime are put into the second refining furnace and refine, and obtain pure micro-carbon ferromanganese and the second hot liquid manganese slag；S4, general
Intermediate alloy of the hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-10min, obtain hot liquid
Secondary intermediate alloy；S5, the secondary intermediate alloy of the hot liquid is put into the second refining furnace, manganese ore is added and lime continues essence
Refining, obtains the pure micro-carbon ferromanganese and the second hot liquid manganese slag, repeats S4-S5 again.The application utilizes hot
Manganese slag adds siliceous reducer and shakes refining by shaking ladle, produces the pure intermediate manganese alloy of low-carbon, alloy carbon can steady decrease
To 0.1%, intermediate manganese alloy reheating, which is converted, refines out carbon content less than 0.15% pure micro-carbon ferromanganese below.With conventional method phase
Than the application produces manganese alloy among micro- carbon using the silicon thermal response of refined ferromanganese liquid heat manganese slag, and hot intermediate manganese alloy can
Directly enter stove refining, simple and reliable using liquid manganese slag sensible heat technological process, operation is easy, and qualification rate may be up on 95%, and
Low energy consumption, and production cost is low.
Those skilled in the art will readily occur to its of the application after considering specification and putting into practice application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and includes the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following
Claim is pointed out.
It should be understood that the application is not limited to the precision architecture for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (9)
1. a kind of production method of pure micro-carbon ferromanganese, which is characterized in that include the following steps：
S1, manganese ore, alloy and lime are put into the first refining furnace and are refined, obtain the first hot liquid manganese slag；
S2, the first liquid manganese slag is put into the first shaking ladle, siliceous reducer is added, shaken refining 5-9min, obtain hot liquid one
Secondary intermediate alloy；
S3, manganese ore, alloy and lime are put into the second refining furnace and are refined, obtain pure micro-carbon ferromanganese and the second hot liquid manganese
Slag；
S4, intermediate alloy of the hot liquid and the second hot liquid manganese slag are put into the second shaking ladle, shake refining 6-10min,
Obtain the secondary intermediate alloy of hot liquid；
S5, the secondary intermediate alloy of the hot liquid is put into second refining furnace, manganese ore is added and lime continues to refine, then
It is secondary to obtain the pure micro-carbon ferromanganese and the second hot liquid manganese slag, repeat S4-S5.
2. according to the method described in claim 1, it is characterized in that, the alloy is silicomangan or high silicon silicomanganese.
3. according to the method described in claim 1, it is characterized in that, in the siliceous reducer Si mass contents be more than 72%,
Fe mass contents are less than 0.3%, P mass contents less than 0.02% less than 23%, C mass contents, and, B, Ti, Zn and Pd's
Gross mass content is less than 0.1%.
4. according to the method described in claim 1, it is characterized in that, in the S1, the manganese ore, the alloy and the lime
Mass ratio be (12-13)：(12-13)：(6-7) or (9-10)：(14-16)：(6-7).
5. according to the method described in claim 1, it is characterized in that, in the S3, the alloy, the manganese ore and the lime
Mass ratio be (4-5)：(8-10)：(4-5).
6. according to the method described in claim 1, it is characterized in that, the first hot liquid manganese cinder ladle includes following mass percent
Component：13-30%MnO, 26-32%SiO2, 29-38%CaO, 1-3%MgO, 0-1%Fe, 2-6%Al2O3, surplus is impurity.
7. according to the method described in claim 1, it is characterized in that, Mn mass contents are high in intermediate alloy of the hot liquid
In 50%, Si mass contents higher than 30%, and, Fe mass contents are less than 16%.
8. according to the method described in claim 1, it is characterized in that, Mn mass contents are high in the secondary intermediate alloy of the hot liquid
In 70%, Si mass contents less than 10%, and, Fe mass contents are less than 11%.
9. according to the method described in claim 1, it is characterized in that, the power and capacity of first refining furnace are described second
The power of refining furnace and 2-3 times of capacity, the volume of first shaking ladle is 1-2 times of the volume of second shaking ladle.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505770A (en) * | 2022-10-11 | 2022-12-23 | 平罗县宁源冶金有限公司 | Smelting method of low-carbon metal manganese ingot |
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Application publication date: 20181113 |