CN1375566A - Silico-manganese alloy producing process in MF furnace - Google Patents
Silico-manganese alloy producing process in MF furnace Download PDFInfo
- Publication number
- CN1375566A CN1375566A CN 01133769 CN01133769A CN1375566A CN 1375566 A CN1375566 A CN 1375566A CN 01133769 CN01133769 CN 01133769 CN 01133769 A CN01133769 A CN 01133769A CN 1375566 A CN1375566 A CN 1375566A
- Authority
- CN
- China
- Prior art keywords
- silicomanganese
- slag iron
- manganese
- washery slag
- silicon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The method for producing silicone-manganese alloy includes the following steps: smelting silicone-manganese slag-washing iron to form silicone-manganese molten liquor, adding silicone-increasing agent metal silicone slag iron and decarbonizing agent NaCl-CaO in silicone-manganese solution to respectively make silicone increment and decarbonization, then adding maganese-increasing agent MnO-CaCl3-CaO mixture body to make manganese increment outside of furnace so as to obtain the invented product silicone-manganese alloy.
Description
Technical field:
The present invention relates to a kind of method of producing silicomanganese in intermediate frequency furnace, especially a kind of inexpensive silicomanganese washery slag iron of low-quality that utilizes increases silicon, decarburization after the remelting in intermediate frequency furnace, and increase a kind of method of producing high silicon silicomanganese of manganese outside stove.
Background technology:
China's silicon-manganese alloy all is to adopt rich manganese slag of high-quality and import manganese ore at SiO in the hot stove in ore deposit at present
2Form with smelting under the excessive condition of coke.The facility investment of this technology is big, power consumption is high, manganese resource is difficult to tissue and cost an arm and a leg, so product cost is higher.Silicomanganese washery slag iron generally is to be got by the jig washing after silicomanganese slag fragmentations such as FeMn65Si17 and Fe60Si14, its composition instability, contain 10～20% slag, and silicon and manganese content is lower, carbon content is higher, there is not direct utility value, so price is comparatively cheap, is not fully used.
Summary of the invention:
The invention provides a kind of inexpensive silicomanganese washery slag iron of low-quality that utilizes and in intermediate frequency furnace, increase silicon, decarburization after the remelting, and outside stove, increase a kind of method of producing high silicon silicomanganese of manganese.The raw materials cost that this method adopts is cheap, energy consumption is low, and production technique is simple, facility investment is few, remarkable in economical benefits.
Technical scheme of the present invention is:
A kind of method of utilizing silicomanganese washery slag iron to produce high silicon silicomanganese in intermediate frequency furnace is characterized in that: comprise the steps:
A, melting silicomanganese washery slag iron form the silicomanganese liquation;
B, in silicomanganese solution, add and increase silicea metal white residue iron and decarburizer NaCl-CaO, respectively the silicomanganese liquation is increased silicon, decarburization;
C, continuation add manganese increasing agent MnO-CaCl
2-CaO mixture carries out stove to the silicomanganese liquation and increases manganese outward.
The mode of melting silicomanganese washery slag iron of the present invention is that to utilize Graphite Electrodes that a small amount of silicomanganese washery slag iron is drawn in intermediate frequency furnace molten, and then adds silicomanganese washery slag iron in batches and carry out melting.
The present invention increases the amount that increases silicea that silicon adds for adding 10～20% of silicomanganese washery slag iron total amount, the alloy silicon content is exceeded draft 2～4% of finished product alloy silicon content.
The amount of the decarburizer that decarburization of the present invention added is for adding 3～5% of silicomanganese washery slag iron total amount.
After the present invention increases the silicon decarburization, molten clear metal white residue and the slag system that forms by NaCl-CaO, constant temperature dead melting 3～5 minutes, temperature is controlled at 1400～1450 ℃ for benefit, removes the top layer scum silica frost then, furnace temperature is risen to 1480～1500 ℃ again and comes out of the stove.
It is that manganese increasing agent MnO-CaCl is equipped with in 1480～1500 ℃ silicomanganese melt impouring that stove of the present invention increases manganese outward
2In the shaking ladle of-CaO mixture, and rotated 3～5 minutes, the amount of the manganese increasing agent that is added is for adding 10～15% of silicomanganese washery slag iron total amount.
Manganese increasing agent MnO-CaCl of the present invention
2-CaO mixture, manganese oxide are used for generating manganese and silicon-dioxide with pasc reaction, and calcium oxide is used for slag making, and calcium chloride is used for dilution.
After increasing manganese outward, alloy liquation stove of the present invention makes finished product, the cast molding of removing slag at last.
Silicomanganese washery slag iron of the present invention can be used for slag cement factory making cement raw material through broken, jig washed metal at the slag that intermediate frequency furnace fusing back is produced.
The present invention increases the slag that produces in the silicon decarbonization process and can be used for smelting silicomanganese.
Manganese during the slag that the present invention produces in increasing the manganese operation can be used for smelting.
Metal white residue iron of the present invention is that metallic silicon smelting remains in the waste product Pure Silicon Metal that contains certain slag or impurity component that slag runner, tundish splash go out when tapping a blast furnace, and general silicon content can reach more than 80%.
The present invention increases the purpose that silicon increases the amount realization production ordinary silicon manganese alloy of manganese by adjustment.
The silicomanganese washery slag ferrous components that the present invention adopts is analyzed:
Mn:50～60%; Si:12～16%; C:1.8～3.0%; P:0.13～0.23%, slag inclusion ratio 10～20%.
The high silicon silicomanganese of final product of the present invention content analysis:
Mn: 〉=60%; Si:22～28%; C:0.4～0.8%; P:0.18～0.3%; The S surplus.
Be example to produce one ton of high silicon silicomanganese of FeMn60Si25 below,, set forth beneficial effect of the present invention place adopting the present invention and adopting in the hot stove in ore deposit and do a contrast with rich manganese slag of high-quality and import manganese ore:
(seeing the following form)
| The hot stove production in ore deposit | Intermediate frequency furnace is produced | ||||||
| Title | Unit price (unit) | Consumption | Unit consumption unit/ton | Title | Unit price (unit) | Consumption | Unit consumption unit/ton |
| Rich manganese slag Mn 〉=40% | ??1000 | ??1 | ??1000 | Washery slag iron Mn 〉=40% Si 〉=12% | ??1800 | ??1 | ??1800 |
| Import manganese ore Mn 〉=46% | ??1100 | ??1 | ??1100 | Decarburizer | ??20 | ||
| Silica | ??100 | Increase silicea | ??600 | ||||
| Coke | ??500 | ??0. ??65 | ??325 | Power consumption | ??0.25 | ??10 ??00 | ??250 |
| Electrode paste | ??1200 | ??0. ??07 | ??84 | Furnace lining material | ??30 | ||
| Power consumption | ??5800 | ??0. ??25 | ??1450 | The five metals material | ??30 | ||
| The electrode shell five metals | ??50 | Manganese increasing agent | ??240 | ||||
| Manually | ??150 | Manually | ??110 | ||||
| Depreciation | ??100 | Depreciation | ??20 | ||||
| Add up to | ??4369 | ??3100 | |||||
By the contrast of last table as seen, adopt the present invention to produce one ton of high silicon silicomanganese of FeMn60Si25 and can reduce cost surplus in the of 1000 yuan than the hot stove in employing ore deposit, economic benefit is considerable.The present invention
Accompanying drawing and drawing explanation: Fig. 1 is a process flow diagram of the present invention
Embodiment: processing condition: 500kg of intermediate frequency furnace
Drive a vehicle one 5 tons
One 3 tons of shaking ladles
Two 1 ton of tundish
At first will wash silicon manganese slag iron analysis metering, and in intermediate frequency furnace, utilize Graphite Electrodes to add a small amount of silicomanganese washery slag iron and draw molten.After forming liquation in the stove, take out Graphite Electrodes, silicomanganese washery slag iron is added in the stove in batches.All charges all add and molten clear after, remove the scum silica frost on top layer, last in the last stove for containing the silicomanganese liquation of Mn 50～60%, Si 12～16%, C 1.8～3.0%.
Because the silicon of silicon-manganese alloy is higher, carbon is lower, and (general Si 〉=22%, C≤0.7%) is so need increase the silicon decarburization this moment.The metal white residue iron that adds silicomanganese washery slag iron total amount 15% in stove makes the interior alloy silicon content of stove exceed finished product alloy silicon content 3%.Because the silicon in the metal white residue constantly rises, according to silicon-carbon balance principle, excessive carbon will be sucked out come-up, the general fusing point of slag in the metal white residue is higher, carry out slag making and form the carbon that the low melting point slag system absorbs come-up effectively so when adding the metal white residue, add the NaCl-CaO of silicomanganese washery slag iron total amount 4% in addition, thereby reach the purpose of decarburization.
When metal white residue and NaCl-CaO slag system all molten clear after, constant temperature dead melting 4 minutes fully floats carbon and is absorbed by slag, removes the top layer scum silica frost then.At this moment, the detected temperature of furnace temperature is a benefit with 1400～1450 ℃, removes the top layer scum silica frost then, furnace temperature is risen to 1480～1500 ℃ again and comes out of the stove.
With the high silicon silicomanganese melt impouring tundish of furnace temperature about 1480～1500 ℃, hang grate by driving before, and the manganese increasing agent MnO-CaCl of silicomanganese washery slag iron total amount 12.5% is equipped with in impouring
2Rotated 4 minutes in the shaking ladle of-CaO mixture, carry out stove and increase manganese outward.Produce the high silicon silicomanganese finished product that contains manganese 76%, siliceous 27%, carbon containing 0.5%, the cast molding of removing slag at last, broken warehouse-in.
Claims (6)
1, a kind of method of utilizing silicomanganese washery slag iron to produce high silicon silicomanganese in intermediate frequency furnace is characterized in that: comprise the steps:
A, melting silicomanganese washery slag iron form the silicomanganese liquation;
B, in silicomanganese solution, add and increase silicea metal white residue iron and decarburizer NaCl-CaO, respectively the silicomanganese liquation is increased silicon, decarburization;
C, continuation add manganese increasing agent MnO-CaCl
2-CaO mixture carries out stove to the silicomanganese liquation and increases manganese outward.
2, the method for utilizing silicomanganese washery slag iron in intermediate frequency furnace, to produce high silicon silicomanganese according to claim 1, it is characterized in that: the mode of melting silicomanganese washery slag iron is that to utilize Graphite Electrodes that a small amount of silicomanganese washery slag iron is drawn in intermediate frequency furnace molten, and then adds silicomanganese washery slag iron in batches and carry out melting.
3, the method for utilizing silicomanganese washery slag iron in intermediate frequency furnace, to produce high silicon silicomanganese according to claim 1, it is characterized in that: increase the amount that increases silicea that silicon adds for adding 10～20% of silicomanganese washery slag iron total amount, the alloy silicon content is exceeded draft 2～4% of finished product alloy silicon content.
4, the method for utilizing silicomanganese washery slag iron to produce high silicon silicomanganese in intermediate frequency furnace according to claim 1 is characterized in that: the amount of the decarburizer that decarburization added is for adding 3～5% of silicomanganese washery slag iron total amount.
5, according to claim 1, the 3 or 4 described methods of utilizing silicomanganese washery slag iron in intermediate frequency furnace, to produce high silicon silicomanganese, it is characterized in that: after increasing the silicon decarburization, molten clear metal white residue and the slag system that forms by NaCl-CaO, constant temperature dead melting 3～5 minutes, temperature is controlled at 1400～1450 ℃ and is benefit, remove the top layer scum silica frost then, furnace temperature is risen to 1480～1500 ℃ again and come out of the stove.
6, the method for utilizing silicomanganese washery slag iron to produce high silicon silicomanganese in intermediate frequency furnace according to claim 1 is characterized in that: it is that manganese increasing agent MnO-CaCl is equipped with in 1480～1500 ℃ silicomanganese melt impouring that stove increases manganese outward
2In the shaking ladle of-CaO mixture, and rotated 3～5 minutes, the amount of the manganese increasing agent that is added is for adding 10～15% of silicomanganese washery slag iron total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011337699A CN1162553C (en) | 2001-12-28 | 2001-12-28 | Silico-manganese alloy producing process in MF furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011337699A CN1162553C (en) | 2001-12-28 | 2001-12-28 | Silico-manganese alloy producing process in MF furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1375566A true CN1375566A (en) | 2002-10-23 |
| CN1162553C CN1162553C (en) | 2004-08-18 |
Family
ID=4672097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011337699A Expired - Fee Related CN1162553C (en) | 2001-12-28 | 2001-12-28 | Silico-manganese alloy producing process in MF furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162553C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415909C (en) * | 2006-08-17 | 2008-09-03 | 偏关县晋电化工有限责任公司 | Production method of silicomangan of sintering powder by rotary kiln and hot filling in ore-smelting electric furnace |
| CN103014470A (en) * | 2012-11-30 | 2013-04-03 | 广西新振锰业集团有限公司 | Method of using common rock ballast as slag-modifier agent for silicomanganese alloy smelting |
| CN103555973A (en) * | 2013-07-23 | 2014-02-05 | 内蒙古鄂尔多斯冶金有限责任公司 | Formula for recycling silicon-manganese alloy slag during silicon-manganese alloy production |
| CN110396604A (en) * | 2019-08-09 | 2019-11-01 | 宁夏亚启科技有限公司 | Utilize the method for variable frequency induction melting furnace remelting silicomangan powder |
-
2001
- 2001-12-28 CN CNB011337699A patent/CN1162553C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415909C (en) * | 2006-08-17 | 2008-09-03 | 偏关县晋电化工有限责任公司 | Production method of silicomangan of sintering powder by rotary kiln and hot filling in ore-smelting electric furnace |
| CN103014470A (en) * | 2012-11-30 | 2013-04-03 | 广西新振锰业集团有限公司 | Method of using common rock ballast as slag-modifier agent for silicomanganese alloy smelting |
| CN103014470B (en) * | 2012-11-30 | 2015-02-04 | 广西新振锰业集团有限公司 | Method of using common rock ballast as slag-modifier agent for silicomanganese alloy smelting |
| CN103555973A (en) * | 2013-07-23 | 2014-02-05 | 内蒙古鄂尔多斯冶金有限责任公司 | Formula for recycling silicon-manganese alloy slag during silicon-manganese alloy production |
| CN110396604A (en) * | 2019-08-09 | 2019-11-01 | 宁夏亚启科技有限公司 | Utilize the method for variable frequency induction melting furnace remelting silicomangan powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162553C (en) | 2004-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104120332B (en) | High-intensity high-tenacity spheroidal graphite cast-iron 600-10 and production technology thereof | |
| CN102400032B (en) | Large-cross-section nodular cast iron | |
| CN111850239A (en) | LF furnace refining method for smelting phosphorus-containing steel by using converter high-phosphorus slag | |
| CN101519747A (en) | Rare-earth aluminum-calcium-iron alloy | |
| CN1030617C (en) | Al-Fe alloy using for aluminum steel deoxidation and method for prepn. of same | |
| CN1162553C (en) | Silico-manganese alloy producing process in MF furnace | |
| CN112626312B (en) | Low-carbon aluminum killed steel Al for reducing RH single process 2 O 3 Method of inclusion | |
| CN114318115A (en) | Nodular cast iron material and preparation method thereof | |
| CN110029263A (en) | The process of sulfur-bearing Aluminum steel production | |
| CN1218060C (en) | High-strength low alloy steel micro alloying by using rich-nitrogen and vanadium-containing alloy and its smelting method | |
| CN114606356A (en) | Method for treating ADI iron liquid with high strength and high toughness | |
| CN101864518B (en) | Production method of low-phosphorous ferrovanadium | |
| CN1804086A (en) | Method for preparing low-carbon manganous iron | |
| CN100451135C (en) | Process of producing high quality carbon steel ingot with aluminium and RE added for high grade forging | |
| CN1706974A (en) | Vanadium extracting process | |
| CN101519748A (en) | Rare-earth aluminum-calcium-iron alloy | |
| CN111020115A (en) | Method for refining molten steel outside furnace by using liquid blast furnace slag | |
| CN1240861C (en) | Smelt process for producing rare earth calcium magnesium silicon iron alloy containing little magnesium oxide using ore furnace | |
| CN112063913A (en) | Method for producing ductile iron casting by using scrap steel | |
| CN109762959A (en) | A kind of smelting process and special steel of special steel | |
| CN1277944C (en) | Method for producing high speed tool steel | |
| CN1267567C (en) | High-aluminium alloy and its prepn process | |
| CN1403596A (en) | Pure iron smelting method | |
| CN1415769A (en) | Compound vanadium or alloy of niobium-azote and its preparation method | |
| CN101914717B (en) | Method for alloying vanadium in molten steel by using ferrovanadium fine powder in RH station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |