CN105458236A - Casting method for producing silicon calcium alloy - Google Patents
Casting method for producing silicon calcium alloy Download PDFInfo
- Publication number
- CN105458236A CN105458236A CN201510888361.9A CN201510888361A CN105458236A CN 105458236 A CN105458236 A CN 105458236A CN 201510888361 A CN201510888361 A CN 201510888361A CN 105458236 A CN105458236 A CN 105458236A
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- CN
- China
- Prior art keywords
- ladle
- bag
- slag
- pouring
- calcium
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a casting method for producing a silicon calcium alloy. The method comprises the steps that a ladle is gently pulled in front of a furnace and does not shake; static ladle sediment is carried out for 10 minutes, and it is ensured that slag iron is fully separated; a hot metal ladle carries out dumping pouring constantly; and an anchor hook is used for fixing one side of a molten iron idle cart, and a large crane hook is used for pulling a molten iron ladle ring on the other side to carry out constant dumping pouring. The method has the advantages that operation is easy, potential safety hazards caused by suspended casting of the hot-charging molten iron ladle can be prevented, it is ensured that in the casting process, the slag iron can be fully separated, the slag iron separation effect is good, the alloy contains very low impurities such as C and S, the work labor intensity is effectively reduced, safety in the casting process is improved, and the production cost is reduced.
Description
Technical field:
The invention belongs to field of metallurgy, relate to a kind of pouring procedure of producing calcium-silicon, especially a kind of not liftoff pouring procedure of ladle of large-scale calcium-silicon electric furnace.
Background technology:
Calcium-silicon, as a kind of ferroalloy productor of more difficult smelting, domesticly explores its smelting process from mid-term in last century, have accumulated the smelting history of more than 60 year so far, has had rich experience.
Because the chemical property of calcium is active especially, particle can be formed comparatively large and be insoluble to the non-metallic inclusion of molten steel with impurity element oxygen, sulphur, hydrogen, nitrogen and the carbon etc. in steel, so, calcium-silicon can be used as the important deoxidation of steel-making, decarburization, thiopectic composite fluxing agent, not only deoxidation speed is fast, product is easy to float and is easy to discharge, and can also improve the plasticity of steel, impact flexibility and mobility thereof simultaneously.Therefore calcium-silicon is widely used in producing clean steel, oxygen, low-sulfur content impurity steel, and oxygen, property steel that sulfur content is low especially.
When calcium-silicon is smelted, tapping hole temperatures as high 1900-2100 DEG C, the high-melting-point carbide slag (carborundum, calcium carbide) of generation and low melting point silicate slag (calcium silicates) are poured in ladle with molten iron.Proportion due to slag is greater than the proportion of calcium-silicon, and therefore, after cast, slag deposits at furnace bottom.In traditional small-sized silico-calcium electric furnace smelting process, interval time of tapping a blast furnace is about 6-8 hour, the cinder inclusion scale removal process after casting complete and the time expended, and the impact of coming out of the stove for next stove is little.But for large-scale calcium-silicon electric furnace smelting, came out of the stove once every 100 minutes, because interval time of tapping a blast furnace is short, need to substantially reduce casting process, slag sluicing system and cinder inclusion and clear up the time used.Therefore, conveniently pouring procedure is particularly important to find one.
Summary of the invention:
The object of the invention is to the shortcoming overcoming above-mentioned prior art, a kind of pouring procedure of producing calcium-silicon is provided, the method is simple to operate, slag sluicing system is effective, product is extremely low containing impurity such as C, S, end product quality is high and effectively alleviate operation labor intensity, improve casting process security performance, reduce production cost.
The object of the invention is to solve by the following technical programs:
Produce a pouring procedure for calcium-silicon, bag is drawn gently in stokehold, and bag does not rock, quiet bag sediment 10min, ensures that slag iron is fully separated; Ladle is not liftoff carries out toppling over cast.
A. tap a blast furnace;
B. bag is drawn: by hoist engine, the ladle car of stokehold is gently pulled to cast place by horizontal rail, after ladle puts in place, quiet bag sediment about 10min, ladle car side is fixed by land used grasp;
C. pour into a mould: hook greatly opposite side ladle ring with driving a vehicle and carry out not liftoffly toppling over, then carrying out pouring practice;
D. slag is divided: field personnel, according to the color of liquid-state silicon calcium alloy in ladle, brightness, mobility, carries out a point Slag treatment;
E. clear bag operation: adopt hot bag smoothing machine to clear up slag at the bottom of the bag of ladle, on bag wall.
Beneficial effect of the present invention is: simple to operate, avoid the potential safety hazard that the unsettled cast of hot metal charge bag causes, ensure that the slag iron in casting process is fully separated, make slag sluicing system effective, product is extremely low containing impurity such as C, S, effectively alleviate operation labor intensity, improve casting process security, reduce production cost.
Detailed description of the invention:
Below in conjunction with embodiment, the present invention is described in further detail:
A. tap a blast furnace;
B. bag is drawn: by hoist engine, the ladle car of stokehold is gently pulled to cast place by horizontal rail, after ladle puts in place, quiet bag sediment about 10min, ladle car side is fixed by land used grasp;
C. pour into a mould: hook greatly opposite side ladle ring with driving a vehicle and carry out not liftoffly toppling over, then carrying out pouring practice;
D. slag is divided: field personnel, according to the color of liquid-state silicon calcium alloy in ladle, brightness, mobility, carries out a point Slag treatment;
E. clear bag operation: adopt hot bag smoothing machine to clear up slag at the bottom of the bag of ladle, on bag wall.
After tapping a blast furnace, by hoist engine, the ladle car of stokehold is gently pulled to cast place by horizontal rail, after ladle puts in place, quiet bag sediment about 10min; Ladle car side is fixed by land used grasp, holds opposite side ladle ring carry out not liftoffly toppling over cast with driving hook; Field personnel carries out control lifting according to the color of ladle, brightness and mobility and carries out a point slag operation process.
The present invention utilizes ground grasp to be fixed ladle car side, holds opposite side ladle ring carry out not liftoffly toppling over cast with driving hook.It has simple to operate, avoid the potential safety hazard that the unsettled cast of hot metal charge bag causes, ensure that the slag iron in casting process is fully separated, make slag sluicing system effective, product is extremely low containing impurity such as C, S, effectively alleviate operation labor intensity, improve casting process security, reduce the advantages such as production cost.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the present invention by submitted to claims determination scope of patent protection.
Claims (2)
1. produce a pouring procedure for calcium-silicon, it is characterized in that: bag is drawn gently in stokehold, bag does not rock, quiet bag sediment 10min, ensures that slag iron is fully separated; Ladle is not liftoff carries out toppling over cast.
2. pouring procedure as claimed in claim 1, is characterized in that, according to following steps:
A. tap a blast furnace;
B. bag is drawn: by hoist engine, the ladle car of stokehold is gently pulled to cast place by horizontal rail, after ladle puts in place, quiet bag sediment about 10min, ladle car side is fixed by land used grasp;
C. pour into a mould: hook greatly opposite side ladle ring with driving a vehicle and carry out not liftoffly toppling over, then carrying out pouring practice;
D. slag is divided: field personnel, according to the color of liquid-state silicon calcium alloy in ladle, brightness, mobility, carries out a point Slag treatment;
E. clear bag operation: adopt hot bag smoothing machine to clear up slag at the bottom of the bag of ladle, on bag wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888361.9A CN105458236A (en) | 2015-12-07 | 2015-12-07 | Casting method for producing silicon calcium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888361.9A CN105458236A (en) | 2015-12-07 | 2015-12-07 | Casting method for producing silicon calcium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105458236A true CN105458236A (en) | 2016-04-06 |
Family
ID=55596641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510888361.9A Pending CN105458236A (en) | 2015-12-07 | 2015-12-07 | Casting method for producing silicon calcium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105458236A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4214129B2 (en) * | 2005-05-26 | 2009-01-28 | 本田技研工業株式会社 | Pouring equipment |
| CN101791695A (en) * | 2010-04-23 | 2010-08-04 | 杭州冠重铸机有限公司 | Reladling mechanism and reladling method of ladle |
| CN201543820U (en) * | 2009-12-01 | 2010-08-11 | 陕西盛华冶化有限公司 | Slag removal machine for ladle for large-sized silicon calcium ferroalloy electric furnace |
| CN102121069A (en) * | 2010-12-28 | 2011-07-13 | 陕西盛华冶化有限公司 | Raw material of high purity silicon-calcium alloy and production equipment and production process thereof |
| CN102248154A (en) * | 2011-06-17 | 2011-11-23 | 陈文生 | Casting machine capable of travelling longitudinally and transversely |
| CN102766721A (en) * | 2012-07-03 | 2012-11-07 | 安徽浙泰不锈钢集团有限公司 | Steelmaking furnace |
| CN204584242U (en) * | 2015-04-21 | 2015-08-26 | 湖北江环环保科技有限公司 | A kind of calcium silicon furnace molten iron casting equipment having smoke collecting cover |
-
2015
- 2015-12-07 CN CN201510888361.9A patent/CN105458236A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4214129B2 (en) * | 2005-05-26 | 2009-01-28 | 本田技研工業株式会社 | Pouring equipment |
| CN201543820U (en) * | 2009-12-01 | 2010-08-11 | 陕西盛华冶化有限公司 | Slag removal machine for ladle for large-sized silicon calcium ferroalloy electric furnace |
| CN101791695A (en) * | 2010-04-23 | 2010-08-04 | 杭州冠重铸机有限公司 | Reladling mechanism and reladling method of ladle |
| CN102121069A (en) * | 2010-12-28 | 2011-07-13 | 陕西盛华冶化有限公司 | Raw material of high purity silicon-calcium alloy and production equipment and production process thereof |
| CN102248154A (en) * | 2011-06-17 | 2011-11-23 | 陈文生 | Casting machine capable of travelling longitudinally and transversely |
| CN102766721A (en) * | 2012-07-03 | 2012-11-07 | 安徽浙泰不锈钢集团有限公司 | Steelmaking furnace |
| CN204584242U (en) * | 2015-04-21 | 2015-08-26 | 湖北江环环保科技有限公司 | A kind of calcium silicon furnace molten iron casting equipment having smoke collecting cover |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |