CN103014234A - Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same - Google Patents
Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same Download PDFInfo
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- CN103014234A CN103014234A CN2012105136348A CN201210513634A CN103014234A CN 103014234 A CN103014234 A CN 103014234A CN 2012105136348 A CN2012105136348 A CN 2012105136348A CN 201210513634 A CN201210513634 A CN 201210513634A CN 103014234 A CN103014234 A CN 103014234A
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Abstract
The invention relates to a method for smelting silicon-calcium-barium. The method comprises the following steps of: uniformly mixing 15-22 parts of crystal silicon, 15-30 parts of calcium carbonate, 5-13 parts of barium carbonate and 1-3 parts of carbon; adding the mixed crystal silicon, calcium carbonate, barium carbonate and carbon to an electric-arc furnace for continuous heating after preheating the electric-arc furnace to 400 DEG C; rising the temperature of the electric-arc furnace to 1650 DEG C at a speed of 15-25 DEG C/minutes step by step, removing dross of a smelted silicon-calcium-barium liquid after preserving the temperature for 5-15 minutes and discharging; naturally cooling the discharged silicon-calcium-barium liquid to 600-700 DEG C, condensing the silicon-calcium-barium liquid to form a whole body, cooling to a normal temperature and crushing to 10mm-50mm, and carrying out tests. The sulphur, phosphorus and carcon contents of the silicon-calcium-barium smelted by the method are no more than 0.1% and can meet the steel-making requirement.
Description
Technical field
The present invention relates to a kind of Si-Ca-Ba product of smelting the method for Si-Ca-Ba and manufacturing, be specifically related to a kind of method with electric arc furnace smelting Si-Ca-Ba and the Si-Ca-Ba product that manufactures thereof.
Background technology
Si-Ca-Ba is used for the steel-making generation as a kind of new additive agent of smelting steel, it uses as deoxidation and the sweetening agent of steel-making, because nature does not have pure Si-Ca-Ba, usually use the ore smelting of siliceous, calcic and baric to form, but existing smelting process, so that smelt the composition that the Si-Ca-Ba that contains too much sulphur, phosphorus and carbon, can not satisfy the demand of steel-making.
Summary of the invention
The object of the invention is to solve with the method for existing smelting Si-Ca-Ba and smelt the problem that the Si-Ca-Ba that contains the composition of too much sulphur, phosphorus and carbon, and a kind of Si-Ca-Ba product of smelting the method for Si-Ca-Ba and manufacturing is provided.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of method of smelting Si-Ca-Ba of the present invention, it may further comprise the steps:
(1) being that silicon metal, content more than 99% is the particle that calcium carbonate more than 93% is crushed to respectively 1mm-10mm with content, is that barium carbonate more than 92% is ground into 80 orders with content, and the carbon dust that fuel value is at least 500 kilocalorie/kilograms is broken to 10mm-50mm;
(2) silicon metal of above-mentioned 15-22 part, the calcium carbonate of 15-30 part, the barium carbonate of 5-13 part and the carbon of 1-3 part are mixed;
(3) electric arc furnace is preheated to 400 ℃ after, the silicon metal that mixes in the step (2), calcium carbonate, barium carbonate and carbon added continues heating in the electric arc furnace;
(4) with 15-25 ℃/minute speed electric arc furnace progressively is warming up to 1650 ℃ after, be incubated after 5-10 minute, after the scum silica frost that will dissolve Si-Ca-Ba liquid was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove;
(5) the Si-Ca-Ba liquid after coming out of the stove naturally is cooled to 600-700 ℃ and is condensed into one, again with its cooling normal temperature;
(6) the Si-Ca-Ba product with step (5) is crushed to 10mm-50mm, test, when the content of the sulphur in the Si-Ca-Ba product, phosphorus and carbon respectively less than 0.1% the time, above-mentioned Si-Ca-Ba product packed dispatches from the factory;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: silicon metal is 16-21 part in the described step (2); Calcium carbonate is 18-28 part; Barium carbonate is that 6-12 part and carbon are 2-3 part;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: silicon metal is 20 parts in the described step (2); Calcium carbonate is 25 parts; It is 2 parts with carbon that barium carbonate is 8 parts;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: in the described step (4), with 18-22 ℃/minute speed electric arc furnace progressively is warming up to 1650 ℃ after, be incubated after 6-8 minute, after the scum silica frost of the Si-Ca-Ba liquid that will dissolve was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: in the described step (4), with 20 ℃/minute speed electric arc furnace progressively is warming up to 1650 ℃ after, be incubated after 7 minutes, after the scum silica frost of the Si-Ca-Ba liquid that will dissolve was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: the cooling in the described step (5) is to use cooling fluid or air cooling that the Si-Ca-Ba product is cooled off;
A kind of method of smelting Si-Ca-Ba of the present invention, wherein: described cooling fluid is water or machine oil.
The Si-Ca-Ba product that produces with aforesaid method of the present invention.
The present invention smelts the method for Si-Ca-Ba and the method for existing smelting Si-Ca-Ba, and through practice test many times, the composition that method of the present invention smelts the sulphur, phosphorus and the carbon that contain in the Si-Ca-Ba all is no more than 0.1%, can satisfy the demand of steel-making.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below the present invention is further elaborated.
A kind of method of smelting Si-Ca-Ba, it may further comprise the steps:
(1) with content is silicon metal (SO more than 99%
2.6H
2O), content is the particle that calcium carbonate more than 93% is crushed to respectively 1mm-10mm, is that barium carbonate more than 92% is ground into 80 orders with content, the carbon dust that fuel value is at least 500 kilocalorie/kilograms is broken to 10mm-50mm;
(2) silicon metal of above-mentioned 15-22 part, the calcium carbonate of 15-30 part, the barium carbonate of 5-13 part and the carbon of 1-3 part are mixed; For example: silicon metal is that 16-21 part, calcium carbonate are that 18-28 part, barium carbonate are that 6-12 part and carbon are 2-3 part; Preferably silicon metal is 20 parts; Calcium carbonate is 25 parts; It is 2 parts with carbon that barium carbonate is 8 parts;
(3) electric arc furnace is preheated to 400 ℃ after, the silicon metal that mixes in the step (2), calcium carbonate, barium carbonate and carbon added continues heating in the electric arc furnace;
(4) with 15-25 ℃/minute speed, for example with 18-22 ℃/minute speed, after preferably with 20 ℃/minute electric arc furnace progressively being warming up to 1650 ℃, be incubated after 5-10 minute, for example be incubated 6-8 minute, preferably be incubated 7 minutes, after the scum silica frost that will dissolve Si-Ca-Ba liquid was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove;
(5) the Si-Ca-Ba liquid after coming out of the stove naturally is cooled to 600-700 ℃ and is condensed into one, with cooling fluid or air cooling the Si-Ca-Ba product is cooled to normal temperature again, and cooling fluid is water or machine oil;
(6) the Si-Ca-Ba product with step (5) is crushed to 10mm-50mm, test, when the content of the sulphur in the Si-Ca-Ba product, phosphorus and carbon respectively less than 0.1% the time, above-mentioned Si-Ca-Ba product packed dispatches from the factory.
Si-Ca-Ba product with the aforesaid method manufacturing.
Above description is explanation of the invention, is not that limited range of the present invention is referring to claim, in the situation that without prejudice to spirit of the present invention, the present invention can do any type of modification to the restriction of invention.
Claims (8)
1. method of smelting Si-Ca-Ba, it may further comprise the steps:
(1) being that silicon metal more than 99% and content are the particle that calcium carbonate more than 93% is crushed to respectively 1mm-10mm with content, is that barium carbonate more than 92% is ground into 80 orders with content, and the carbon dust that fuel value is at least 500 kilocalorie/kilograms is broken to 10mm-50mm;
(2) silicon metal of above-mentioned 15-22 part, the calcium carbonate of 15-30 part, the barium carbonate of 5-13 part and the carbon of 1-3 part are mixed;
(3) electric arc furnace is preheated to 400 ℃ after, the silicon metal that mixes in the step (2), calcium carbonate, barium carbonate and carbon added continues heating in the electric arc furnace;
(4) with 15-25 ℃/minute speed electric arc furnace progressively is warming up to 1650 ℃ after, be incubated after 5-10 minute, after the scum silica frost that will dissolve Si-Ca-Ba liquid was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove;
(5) the Si-Ca-Ba liquid after coming out of the stove naturally is cooled to 600-700 ℃ and is condensed into one, again with its cooling normal temperature;
(6) the Si-Ca-Ba product with step (5) is crushed to 10mm-50mm, test, when the content of the sulphur in the Si-Ca-Ba product, phosphorus and carbon respectively less than 0.1% the time, above-mentioned Si-Ca-Ba product packed dispatches from the factory.
2. the method for smelting Si-Ca-Ba as claimed in claim 1 is characterized in that: silicon metal is 16-21 part in the described step (2); Calcium carbonate is 18-28 part; Barium carbonate is 6-12 part; Carbon is 2-3 part.
3. the method for smelting Si-Ca-Ba as claimed in claim 2 is characterized in that: silicon metal is 20 parts in the described step (2); Calcium carbonate is 25 parts; Barium carbonate is 8 parts; Carbon is 2 parts.
4. the method for smelting Si-Ca-Ba as claimed in claim 3, it is characterized in that: in the described step (4), after with 18-22 ℃/minute speed electric arc furnace progressively being warming up to 1650 ℃, be incubated after 6-8 minute, after the scum silica frost of the Si-Ca-Ba liquid that will dissolve was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove.
5. the method for smelting Si-Ca-Ba as claimed in claim 4, it is characterized in that: in the described step (4), after with 20 ℃/minute speed electric arc furnace progressively being warming up to 1650 ℃, be incubated after 7 minutes, after the scum silica frost of the Si-Ca-Ba liquid that will dissolve was removed, the Si-Ca-Ba liquid that will dissolve was again come out of the stove.
6. the method for smelting Si-Ca-Ba as claimed in claim 5 is characterized in that: the cooling in the described step (5) is to use cooling fluid or air cooling that the Si-Ca-Ba product is cooled off.
7. the method for smelting Si-Ca-Ba as claimed in claim 6, it is characterized in that: described cooling fluid is water or machine oil.
8. the Si-Ca-Ba product made from the described method of the arbitrary claim of claim 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210513634.8A CN103014234B (en) | 2012-12-04 | 2012-12-04 | Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same |
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| CN201210513634.8A CN103014234B (en) | 2012-12-04 | 2012-12-04 | Method for smelting silicon-calcium-barium and silicon-calcium-barium product manufactured by same |
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| CN103014234A true CN103014234A (en) | 2013-04-03 |
| CN103014234B CN103014234B (en) | 2014-04-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU765387A1 (en) * | 1978-08-28 | 1980-09-23 | Институт Проблем Литья Ан Украинской Сср | Modifier |
| CN1064707A (en) * | 1991-03-09 | 1992-09-23 | 北京科技大学 | Process for smelting high grade Si-Ba-Ca alloy in smelting furnace |
| CN1278559A (en) * | 2000-06-14 | 2001-01-03 | 李春德 | Multi-component Si-Ca-Ba deoxidizer and desulfurizer for steel smelting |
| CN1341755A (en) * | 2001-09-06 | 2002-03-27 | 刘长福 | Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
| CN1920060A (en) * | 2006-09-19 | 2007-02-28 | 刘长福 | Method of producing silicon-calcium-barium steel cleaning agent by shaft furnace |
| CN101054616A (en) * | 2007-06-19 | 2007-10-17 | 刘长福 | Compound Si-Ca-Ba deoxidant producing process and equipment |
-
2012
- 2012-12-04 CN CN201210513634.8A patent/CN103014234B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU765387A1 (en) * | 1978-08-28 | 1980-09-23 | Институт Проблем Литья Ан Украинской Сср | Modifier |
| CN1064707A (en) * | 1991-03-09 | 1992-09-23 | 北京科技大学 | Process for smelting high grade Si-Ba-Ca alloy in smelting furnace |
| CN1278559A (en) * | 2000-06-14 | 2001-01-03 | 李春德 | Multi-component Si-Ca-Ba deoxidizer and desulfurizer for steel smelting |
| CN1341755A (en) * | 2001-09-06 | 2002-03-27 | 刘长福 | Production process of silicon calcium barium liquid steel cleaning agent and its equipment |
| CN1920060A (en) * | 2006-09-19 | 2007-02-28 | 刘长福 | Method of producing silicon-calcium-barium steel cleaning agent by shaft furnace |
| CN101054616A (en) * | 2007-06-19 | 2007-10-17 | 刘长福 | Compound Si-Ca-Ba deoxidant producing process and equipment |
Non-Patent Citations (4)
| Title |
|---|
| 傅刚: "硅钙钡合金冶炼工艺初探", 《铁合金》, no. 3, 31 March 1991 (1991-03-31), pages 28 - 30 * |
| 刘平等: "硅钙钡脱氧剂在炼钢中的应用", 《包钢科技》, vol. 29, no. 4, 31 August 2003 (2003-08-31), pages 26 - 29 * |
| 吕俊杰等: "生产硅钙、硅钙钡系列合金杂质的控制与精炼", 《铁合金》, no. 6, 30 June 2006 (2006-06-30), pages 19 - 22 * |
| 李忠思等: "硅铝钙钡铁合金工业生产试验", 《铁合金》, no. 1, 31 January 2000 (2000-01-31), pages 35 - 39 * |
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| CN103014234B (en) | 2014-04-30 |
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