CN1151283C - Compound Si-Ca-Mg deoxidant producing process and equipment - Google Patents
Compound Si-Ca-Mg deoxidant producing process and equipment Download PDFInfo
- Publication number
- CN1151283C CN1151283C CNB011154527A CN01115452A CN1151283C CN 1151283 C CN1151283 C CN 1151283C CN B011154527 A CNB011154527 A CN B011154527A CN 01115452 A CN01115452 A CN 01115452A CN 1151283 C CN1151283 C CN 1151283C
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- China
- Prior art keywords
- deoxidant
- steel
- compound
- raw material
- fluorite
- 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.)
- Expired - Fee Related
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a compound deoxidant produced by reduction reaction in a purpose-made intermediate frequency furnace from a plurality of common raw materials. The deoxidant is mainly used for the end deoxidation of steel liquid. The deoxidant comprises is produced by the working procedures comprising mixing, smelting, casting from the furnace, etc by the main raw materials comprising silica, lime and dolomite and the assistant materials comprising fluorite, coke particles, etc. The deoxidant is a novel efficient compound deoxidant and a desulfurizer. The deoxidant can absorb impurities in steel, increase the fluidity of steel water, improve the forms of impurities in steel, purify steel liquid and increase steel quality.
Description
Technical field
The invention belongs to metallurgy industry reductor production field, relate to a kind of production technique of silicon-calcium-magnesium compound deoxidant.
Background technology
At present, the production technique of China's silico-calcium magnesium mainly is to use the hot stove production in ore deposit, silico-calcium magnesium power consumption height and unstable product quality that this method is produced.
Summary of the invention
Along with the development of steel market, can produce the low silico-calcium magnesium of cost is the serious hope of manufacturing enterprise always, and the inventor is exactly the production technique of having invented silicon-calcium-magnesium compound deoxidant in this case.
The object of the present invention is to provide a kind of quality of production stable, the smelting process of the silicon-calcium-magnesium compound deoxidant that cost reduces.
The invention has the advantages that: it is that the disposable batching of intermediate frequency furnace of interior benefit is produced silico-calcium magnesium power consumption is reduced greatly that the present invention adopts with plumbago crucible, and constant product quality, has reduced unnecessary operation, has improved output.
The production technique of silico-calcium magnesium of the present invention comprises raw material crushing, mixing, melting temperature raising, packing warehouse-in operation.Raw material comprises silica, lime, rhombspar, fluorite, Jiao Li etc., and its weight percent is a silica: lime: rhombspar: fluorite: burnt grain=2.5: 3: 2.5: 1: 1.
Production technique of the present invention comprises: 1 raw material is selected for use, 2 batchings, melting, four aspects of 4 tapping casting.
1, raw material is selected for use: raw material comprises silica, lime, rhombspar, fluorite, five kinds of raw materials of burnt grain;
2, ingredient requirement is as follows:
Silica: SiO
2＞97%
Lime: CaO＞80%
Rhombspar: MgO＞15%
Fluorite: CaF
2＞80%
Burnt grain: fixed carbon＞80%
2, prepare burden: just put into crusher for crushing after finishing by the ratio of components batching and become granularity 80-120 purpose meal stand-by.
3, melting: the raw material input after will pulverizing has in the intermediate frequency furnace of electrode graphite crucible lining, throws full fire door with raw material and is as the criterion, and then furnace temperature is raised to 1400 degree back insulations and comes out of the stove after 1 hour.
4, tapping casting: treat after the intermediate frequency furnace inclination liquid in the stove to be poured in the ingot mould after raw material melts fully.
Embodiment
Example: at first choose SiO
2＞97% silica 50kg; The lime 60kg of CaO＞80%; The rhombspar 50kg of MgO＞15%; 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 that 1400 degree back insulations were come out of the stove after 1 hour and product.
The product that this examples produce goes out is calcic 34.24% after chemically examining, and contains magnesium 8.32%.
Claims (1)
1. the production technique of a silicon-calcium-magnesium compound deoxidant, comprise that raw material is selected for use, batching, melting, tapping casting operation, it is characterized in that: raw material comprises silica, lime, rhombspar, fluorite, burnt grain, and its weight percent is: silica: lime: rhombspar: fluorite: burnt grain=2.5: 3: 2.5: 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011154527A CN1151283C (en) | 2001-04-26 | 2001-04-26 | Compound Si-Ca-Mg deoxidant producing process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011154527A CN1151283C (en) | 2001-04-26 | 2001-04-26 | Compound Si-Ca-Mg deoxidant producing process and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1322849A CN1322849A (en) | 2001-11-21 |
| CN1151283C true CN1151283C (en) | 2004-05-26 |
Family
ID=4661984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011154527A Expired - Fee Related CN1151283C (en) | 2001-04-26 | 2001-04-26 | Compound Si-Ca-Mg deoxidant producing process and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151283C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965530B (en) * | 2012-12-04 | 2014-09-10 | 纪征礼 | Silicon-calcium-magnesium smelting method |
-
2001
- 2001-04-26 CN CNB011154527A patent/CN1151283C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1322849A (en) | 2001-11-21 |
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| 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 |