CN1341755A - Production process of silicon calcium barium liquid steel cleaning agent and its equipment - Google Patents
Production process of silicon calcium barium liquid steel cleaning agent and its equipment Download PDFInfo
- Publication number
- CN1341755A CN1341755A CN 01131295 CN01131295A CN1341755A CN 1341755 A CN1341755 A CN 1341755A CN 01131295 CN01131295 CN 01131295 CN 01131295 A CN01131295 A CN 01131295A CN 1341755 A CN1341755 A CN 1341755A
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- raw material
- silica
- cleaning agent
- liquid steel
- equipment
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Abstract
The molten steel cleaning agent is made up by using high-quality silica (or quartz sand, roasted silica), pure lime and barite as main raw material, adding auxiliary materials of fluorite and coke granules and adopting the procedures of selecting material, mixing material, smelting, tapping and casting, etc. Said cleaning agent is a new-type high-effective moten steel cleaning agent, deoxidant and desulfurizer, can absorb impurity being molten steel, raise molten steel flowability and raise steel quanlity.
Description
The invention belongs to the production field of metallurgy industry agent for purifying molten steel, relate to a kind of production technique and employed equipment of silicon calcium barium liquid steel scavenging agent.
At present, the production technique of China's silico-calcium barium mainly is to use the hot stove production in ore deposit, silico-calcium barium power consumption height and unstable product quality that this method is produced, the present invention's employing are that the intermediate frequency furnace production silico-calcium barium of liner reduces power consumption greatly with the plumbago crucible, and constant product quality.
Along with the development of steel market, can produce the low silico-calcium barium of cost is the serious hope of manufacturing enterprise always, and the inventor is exactly production technique and an employed equipment thereof of having invented the silicon calcium barium liquid steel scavenging agent in this case.
The object of the invention is to provide the smelting process of the silicon calcium barium liquid steel scavenging agent that a kind of quality of production is stable, cost reduces, and this mainly comprises the improvement of the smelting technology and the equipment of silicon calcium barium liquid steel scavenging agent.
The present invention be achieved in that the production technique of silico-calcium barium of the present invention comprise select materials, prepare burden, operations such as fragmentation, mixing, melting temperature raising, packing warehouse-in.It is characterized in that: raw material comprises high quality silicon stone (or quartz sand, roast silica), carbonate-free lime, barite, fluorite, Jiao Li etc., and its weight percent is a silica: lime: barite: fluorite: burnt grain=2-4: 3-5: 2-4: 1: 1.
Production technique of the present invention comprises: 1, raw material is selected for use; 2, batching; 3, melting; 4, four aspects of tapping casting.
1, raw material is selected for use: raw material comprises raw materials such as high quality silicon stone (or quartzite, roast silica), carbonate-free lime, barite, fluorite, Jiao Li.
Ingredient requirement is as follows: silica: SiO
2＞97%
Lime: CaO＞80%
Barite: BaSO
4＞90%
Fluorite: CaF
2＞80%
Burnt grain: fixed carbon＞80%
2, batching: the content according to the silicon of the silicon calcium barium liquid steel scavenging agent that will produce, calcium, barium can suitably be adjusted ratio of components.Just putting into crusher for crushing after finishing by ratio of components batching, to become granularity be that 80-120 purpose meal is stand-by.
3, melting: the raw material input after will pulverizing is in the intermediate frequency furnace of liner with the electrode graphite crucible, throws full fire door with raw material and is as the criterion, and furnace temperature is raised to 1400-1800 ℃ after come out of the stove after 1.5-2 hour the molten refining.
4, tapping casting: treat raw material melt fully be in a liquid state after, intermediate frequency furnace is tilted, liquid is poured in the ingot mould.
5, crushing packing: after treating the product cooling caking in the ingot mould, carry out crushing packing.
It is the intermediate frequency furnace of liner that the improvement of melting equipment of the present invention is to use with the electrode graphite crucible.It is characterized by: crucible is that Graphite Electrodes makes after inside hollows out.Its size does not have other requirement.
The invention has the advantages that: once drop into raw material with ratio of components accurately, make constant product quality, reduced unnecessary operation, reduced power consumption, improved output.Example: require to produce calcic more than 30; The silicon calcium barium liquid steel of baric more than 10 purifies at first chooses SiO
2＞97% silica 50kg; CaO＞80% lime 50kg; BaSO
4＞90% barite 50kg; CaF
2＞80% fluorite 20kg; The burnt grain 20kg of fixed carbon＞80%.Putting into crusher for crushing after above raw material mixed, to become granularity be 80-120 purpose meal, raw material input after pulverizing is had in the intermediate frequency furnace of electrode graphite crucible lining, throw full fire door with raw material and be as the criterion, then furnace temperature is raised to 1400-1800 ℃ after molten refining come out of the stove after 1.5-2 hour and must product.
The product that this gesture example is produced is calcic 31.24% after chemically examining, baric 12.32%.
The purpose of this product invention is:
The silicon calcium barium liquid steel scavenging agent contains elements such as Si, Ca, Ba.In cleaning molten steel: can play deoxidation, desulfurization, cleaning molten steel, and reduce Al
2O
3Fusing point, change molten steel flow.Can improve simultaneously the form of steel inclusion, absorb the impurity in the molten steel.Can improve the crystalline structure of steel again, cleaning molten steel, raising steel
Claims (4)
1, a kind of production technique of silicon calcium barium liquid steel scavenging agent: comprise that raw material selects for use, technologies such as batching, molten refining, tapping casting, it is waited to levy and is: raw material comprises: high-quality silica (or quartz sand, roast silica), carbonate-free lime, barite, fluorite, Jiao Li etc.Its heavy per-cent is: high-quality silica (or quartz sand, roast silica): carbonate-free lime: barite: fluorite: burnt grain=2-4: 3-5: 2-4: 1: 1.
2, a kind of production specific equipment of silicon calcium barium liquid steel scavenging agent: it is characterized in that its equipment is is the intermediate frequency furnace of liner with the electrode graphite crucible.
3, crucible according to claim 2 is characterized by: crucible is handled through high temperature graphitization and is formed.
4, according to claim 1: after the raw material of aforementioned proportion mixed, drop in claim 2, the 3 described intermediate frequency furnaces, through the molten refining of 1400-1800 ℃ furnace temperature condition 1.5-2 hour, treat raw material turn to liquid and react finish after, the cast of can coming out of the stove.Behind the cooling forming, be broken into product.Its product compositional characteristic is: silicon-dioxide (SiO
2) 25-65% calcium oxide (CaO) 20-48% barium oxide (BaO) 2-20% surplus is trace elements such as aluminium, phosphorus, sulphur, carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131295 CN1260375C (en) | 2001-09-06 | 2001-09-06 | Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131295 CN1260375C (en) | 2001-09-06 | 2001-09-06 | Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1341755A true CN1341755A (en) | 2002-03-27 |
| CN1260375C CN1260375C (en) | 2006-06-21 |
Family
ID=4670491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01131295 Expired - Fee Related CN1260375C (en) | 2001-09-06 | 2001-09-06 | Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260375C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304602C (en) * | 2002-04-25 | 2007-03-14 | 宁夏贺兰山铁合金有限责任公司 | Deoxygenating reinforcer |
| CN100359024C (en) * | 2005-11-10 | 2008-01-02 | 安康市光大铁合金有限公司 | Low content aluminium silicon cacium barium alloy and its manufacture method |
| CN101892348A (en) * | 2010-07-22 | 2010-11-24 | 新兴铸管股份有限公司 | Molten steel calcium supplement |
| CN101293780B (en) * | 2008-06-26 | 2011-08-03 | 河南省耕生耐火材料有限公司 | Method for synthesizing calcium sand and producing calcium filter for pouring box sublimation |
| CN102321782A (en) * | 2011-08-18 | 2012-01-18 | 内蒙古包钢钢联股份有限公司 | Molten steel purifying agent for IF (intermediate frequency) furnace steelmaking and preparation method thereof |
| CN103014234A (en) * | 2012-12-04 | 2013-04-03 | 纪征礼 | Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same |
| CN103642989A (en) * | 2013-11-21 | 2014-03-19 | 青岛佰众化工技术有限公司 | Steel liquid purification agent |
-
2001
- 2001-09-06 CN CN 01131295 patent/CN1260375C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304602C (en) * | 2002-04-25 | 2007-03-14 | 宁夏贺兰山铁合金有限责任公司 | Deoxygenating reinforcer |
| CN100359024C (en) * | 2005-11-10 | 2008-01-02 | 安康市光大铁合金有限公司 | Low content aluminium silicon cacium barium alloy and its manufacture method |
| CN101293780B (en) * | 2008-06-26 | 2011-08-03 | 河南省耕生耐火材料有限公司 | Method for synthesizing calcium sand and producing calcium filter for pouring box sublimation |
| CN101892348A (en) * | 2010-07-22 | 2010-11-24 | 新兴铸管股份有限公司 | Molten steel calcium supplement |
| CN102321782A (en) * | 2011-08-18 | 2012-01-18 | 内蒙古包钢钢联股份有限公司 | Molten steel purifying agent for IF (intermediate frequency) furnace steelmaking and preparation method thereof |
| CN103014234A (en) * | 2012-12-04 | 2013-04-03 | 纪征礼 | Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same |
| CN103014234B (en) * | 2012-12-04 | 2014-04-30 | 纪征礼 | Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same |
| CN103642989A (en) * | 2013-11-21 | 2014-03-19 | 青岛佰众化工技术有限公司 | Steel liquid purification agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260375C (en) | 2006-06-21 |
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| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 |