CN103252485B - Steel ladle and method for using steel ladle to reduce heat absorption in pouring process - Google Patents
Steel ladle and method for using steel ladle to reduce heat absorption in pouring process Download PDFInfo
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- CN103252485B CN103252485B CN201310219109.XA CN201310219109A CN103252485B CN 103252485 B CN103252485 B CN 103252485B CN 201310219109 A CN201310219109 A CN 201310219109A CN 103252485 B CN103252485 B CN 103252485B
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- valve
- ladle
- steel ladle
- liner
- cavity
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Abstract
The invention relates to a steel ladle and a method for using the steel ladle to reduce heat absorption in a pouring process. The steel ladle comprises a shell and a liner, a sealed cavity is formed between the shell and the liner, a pouring pipe is installed at the bottom of the shell and is provided with a valve I controlling pouring, the cavity is provided with a connecting pipe which is communicated with a position, at the outlet end of the valve I, of the pouring pipe, and the connecting pipe is provided with a valve II. When the pouring is carried out through the steel ladle, the valve I 5 is opened firstly, and metallic solution inside the steel ladle flows out through the pouring pipe 4; the valve II 7 is opened then, negative pressure is formed in the connecting pipe 6 in a flowing-out process of the metallic solution, air in the cavity 3 is continuously sucked, the heat conductivity of the cavity 3 is reduced, the heat insulating effect of the steel ladle is improved, and heat is prevented from being transmitted from the liner 2 to the shell and diffused into the air. Therefore, the heat insulating effect of the liner of the steel ladle is improved, the fact that the temperature of the metallic solution meets production requirements in a production process is guaranteed, energy consumption is reduced, and production cost of an enterprise is lowered.
Description
Technical field
The present invention relates to field of steel metallurgy, be specifically related to a kind of ladle and use ladle to reduce the method for absorbing heat in casting process.
Background technology
At present in continuous or semi-continuous casting process, according to rhythm of production requirement after the ladle arrival cast station of access molten steel, automatically open delivery port and water steel, molten steel enters tundish, after shunting and current stabilization, molten steel enters crystallizer or mould carries out coagulation forming, completes crude green body production.But in casting process, in ladle, molten steel is along with the decline of liquid level, and liquid steel temperature can reduce gradually, mainly because ladle liner heat absorption and top slag blanket heat loss through radiation cause.Can be opened by erection steel ladle cover for top slag blanket heat loss through radiation and be optimized, and ladle liner is absorbed heat, mainly by the successively heat conduction outward of working lining, permanent layer, heat insulation layer and ladle housing, liquid steel temperature is caused to reduce gradually, will have a negative impact to the casting process of downstream reactor when local liquid steel temperature decreases beyond certain limit, affect whole production process.
The main method of current solution adopts the method increasing heat insulation layer thickness or change heat insulation layer material, and the material finding heat-insulating property higher is not be easy to, and progress neither be very large at present; Increase heat insulation layer thickness inwardly to reduce molten steel volume or outwards increase ladle housing volume, increase ladle weight.
Summary of the invention
In view of this, the object of this invention is to provide a kind of ladle and use ladle to reduce the method for absorbing heat in casting process, improve the heat insulation effect of ladle, reduce the loss of molten steel heat.
The invention discloses a kind of ladle, comprise housing and liner, the cavity of sealing is formed between described housing and liner, described housing bottom is provided with gate spool, described gate spool is provided with the valve I controlling cast, described cavity is provided with tube connector and is communicated with the gate spool of the valve I port of export, and described tube connector is provided with valve II.
Further, described liner comprises permanent layer and working lining from outside to inside successively.
Further, reinforcement is provided with between described housing and liner.
The invention also discloses and a kind ofly reduce the method for absorbing heat in steel ladle pouring process, when using ladle to pour into a mould, first opening valve I, the metallic solution in ladle is flowed out from gate spool; Open valve II again, metallic solution constantly aspirates the air in cavity in the process flowed out, and reduces the thermal conductivity of cavity; After cast terminates, valve-off II, last valve-off I.
Beneficial effect of the present invention is: a kind of ladle of the present invention and use ladle reduce the method for absorbing heat in casting process, ladle air of cavity between negative-pressure ward ladle housing and liner when beam, utilize vacuum heat-insulation principle, improve the insulation effect of ladle, guarantee that casting process cavity has very high thermal resistance with this, heat is stoped to be lost in air by ladle housing, thus improve the insulation effect of ladle liner, ensure that the metal liquid temperature in production process meets Production requirement, save energy ezpenditure, reduce the production cost of enterprise.
Accompanying drawing explanation
In order to make the object of invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the structural representation of ladle of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in the figure, a kind of ladle of the present invention, comprise housing 1 and liner 2, form the cavity 3 of sealing between described housing 1 and liner 2, the thermal conductivity factor of air, lower than the thermal conductivity factor of metal, reduces heat and is delivered on housing 1 lost, gate spool 4 is provided with bottom described housing 1, described gate spool 4 is provided with the valve I 5 controlling cast, and described cavity 3 is provided with tube connector 6 and is communicated with the gate spool 4 of valve I 5 port of export, and described tube connector 6 is provided with valve II 7.
In the present embodiment, described liner 2 comprises permanent layer 2a and working lining 2b from outside to inside successively, the direct contacting metal liquid of working lining 2b and slag, bear high temperature and the chemical erosion of metal liquid and slag, when working lining 2b corrodes thinner, permanent layer 2a can prevent metal liquid from burning out housing 1 from during working lining 2b leakage, thus improves the service life of ladle.
In the present embodiment, be provided with reinforcement between described housing 1 and liner 2, add the intensity of ladle, prevent ladle to be out of shape, refer to service life.
Use ladle of the present invention to reduce the method for absorbing heat in casting process, it is characterized in that: when using ladle to pour into a mould, first opening valve I 5, the metallic solution in ladle is flowed out from gate spool 4; Open valve II 7 again, according to hydromechanical negative-pressure ward principle, negative pressure is formed in tube connector 6, metallic solution constantly aspirates the air in cavity 3 in the process flowed out, improve the vacuum in cavity 3, reduce the thermal conductivity of cavity 3, improve the insulation effect of ladle, stop heat to be delivered to housing 1 from liner 2 and be lost to air; After cast terminates, valve-off II 7, last valve-off I 5.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by referring to the preferred embodiments of the present invention, invention has been described, but those of ordinary skill in the art is to be understood that, various change can be made to it in the form and details, and not depart from the spirit and scope of the present invention that appended claims limits.
Claims (4)
1. a ladle, it is characterized in that: comprise housing and liner, the cavity of sealing is formed between described housing and liner, described housing bottom is provided with gate spool, described gate spool is provided with the valve I controlling cast, described cavity is provided with tube connector and is communicated with the gate spool of the valve I port of export, and described tube connector is provided with valve II.
2. a kind of ladle according to claim 1, is characterized in that: described liner comprises permanent layer and working lining from outside to inside successively.
3. a kind of ladle according to claim 1, is characterized in that: be provided with reinforcement between described housing and liner.
4. use the ladle described in claim 1 to 3 any one to reduce a method of absorbing heat in casting process, it is characterized in that; When using ladle to pour into a mould, first opening valve I, the metallic solution in ladle is flowed out from gate spool; Open valve II again, metallic solution constantly aspirates the air in cavity in the process flowed out, and reduces the thermal conductivity of cavity; After cast terminates, valve-off II, last valve-off I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219109.XA CN103252485B (en) | 2013-06-04 | 2013-06-04 | Steel ladle and method for using steel ladle to reduce heat absorption in pouring process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219109.XA CN103252485B (en) | 2013-06-04 | 2013-06-04 | Steel ladle and method for using steel ladle to reduce heat absorption in pouring process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103252485A CN103252485A (en) | 2013-08-21 |
| CN103252485B true CN103252485B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310219109.XA Expired - Fee Related CN103252485B (en) | 2013-06-04 | 2013-06-04 | Steel ladle and method for using steel ladle to reduce heat absorption in pouring process |
Country Status (1)
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| CN (1) | CN103252485B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243623B (en) * | 2017-07-03 | 2023-03-14 | 山东钢铁股份有限公司 | Steel ladle with vacuum layer |
| CN109676120B (en) * | 2019-01-25 | 2020-11-06 | 湖北鄂钢扬子重型机械制造有限公司 | Steelmaking package |
| CN112935230B (en) * | 2021-01-14 | 2022-09-23 | 辽宁义圣科技集团有限公司 | Casting process of nodular cast iron |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596586A (en) * | 2009-01-25 | 2009-12-09 | 张沙泉 | Vacuum-negative pressure continuous casting method |
| CN102151820A (en) * | 2011-03-09 | 2011-08-17 | 周建安 | Metallurgical ladle device with vacuum shell |
| CN202877529U (en) * | 2012-09-17 | 2013-04-17 | 辽宁科技大学 | Ladle with metal shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271932A (en) * | 1996-04-09 | 1997-10-21 | Japan Metals & Chem Co Ltd | Ceramic ladle |
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2013
- 2013-06-04 CN CN201310219109.XA patent/CN103252485B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596586A (en) * | 2009-01-25 | 2009-12-09 | 张沙泉 | Vacuum-negative pressure continuous casting method |
| CN102151820A (en) * | 2011-03-09 | 2011-08-17 | 周建安 | Metallurgical ladle device with vacuum shell |
| CN202877529U (en) * | 2012-09-17 | 2013-04-17 | 辽宁科技大学 | Ladle with metal shell |
Non-Patent Citations (2)
| Title |
|---|
| 林育炼.长水口-钢包的连接.《耐火材料与结晶钢生产技术》.2012, * |
| 汪厚植.轻质长水口.《汪厚植耐火材料论文选》.2010, * |
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| CN103252485A (en) | 2013-08-21 |
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Granted publication date: 20150218 Termination date: 20190604 |