CN103252485A - 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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- CN103252485A CN103252485A CN201310219109XA CN201310219109A CN103252485A CN 103252485 A CN103252485 A CN 103252485A CN 201310219109X A CN201310219109X A CN 201310219109XA CN 201310219109 A CN201310219109 A CN 201310219109A CN 103252485 A CN103252485 A CN 103252485A
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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 the Ferrous Metallurgy field, be specifically related to a kind of ladle and use ladle to reduce the method for absorbing heat in the casting process.
Background technology
At present in continuous or semi-continuous casting process, the ladle that collects molten steel arrives behind the cast station according to the rhythm of production requirement, opens delivery port automatically and waters steel, and molten steel enters tundish, through shunting and current stabilization afterwards molten steel enter crystallizer or mould carries out coagulation forming, finish crude green body production.But molten steel is along with the decline of liquid level in the ladle in casting process, and liquid steel temperature can reduce gradually, mainly because ladle liner absorbs heat and top slag blanket heat loss through radiation causes.Can open and optimized by setting up ladle lid for top slag blanket heat loss through radiation, and absorb heat for ladle liner, mainly be by the heat conduction outward successively of working lining, permanent layer, heat insulation layer and ladle housing, cause liquid steel temperature to reduce gradually, will the casting process of downstream reactor be had a negative impact when local liquid steel temperature reduces above certain limit, influence whole process of production.
The main method that solves is to adopt the method that increases heat insulation layer thickness or change the heat insulation layer material at present, and seeking the higher material of heat-insulating property is not to be easy to, and progress neither be very big at present; Increase heat insulation layer thickness and will certainly inwardly reduce the molten steel volume or outwards increase ladle housing volume, increase ladle weight.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of ladle and use ladle to reduce the method for absorbing heat in the casting process, improved the heat insulation effect of ladle, reduced the loss of molten steel heat.
The invention discloses a kind of ladle, comprise housing and liner, form the cavity of sealing between described housing and the liner, described housing bottom is provided with gate spool, described gate spool is provided with the valve I of control 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 the valve II.
Further, described liner comprises permanent layer and working lining from outside to inside successively.
Further, be provided with reinforcement between described housing and the liner.
The invention also discloses a kind of method of absorbing heat in the steel ladle pouring process that reduces, when using ladle to pour into a mould, open the valve I earlier, the metallic solution in the ladle is flowed out from gate spool; Open the valve II again, metallic solution constantly aspirates the air in the cavity in the process that flows out, and reduces the thermal conductivity of cavity; After cast finishes, 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 the casting process, ladle negative pressure when beam is aspirated the air of cavity between ladle housing and the liner, utilize the vacuum heat-insulation principle, improve the insulation effect of ladle, guarantee that with this casting process cavity has very high thermal resistance, stop heat to be lost in the air by the ladle housing, thereby improved the insulation effect of ladle liner, guarantee that the metal liquid temperature in the production process satisfies the production demand, conserve energy consumes, and has reduced the production cost of enterprise.
Description of drawings
For the purpose, technical scheme and the advantage that make invention is clearer, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is the structural representation of ladle of the present invention.
The specific embodiment
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 the liner 2, the thermal conductivity factor of air is lower than the thermal conductivity factor of metal, reduces heat and is delivered on the housing 1 lost, described housing 1 bottom is provided with gate spool 4, described gate spool 4 is provided with the valve I 5 of control cast, and described cavity 3 is provided with tube connector 6 and is communicated with the gate spool 4 of valve I 5 ports 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 when thinner, permanent layer 2a burns out housing 1 in the time of can preventing metal liquid from working lining 2b leakage, thereby improves the service life of ladle.
In the present embodiment, be provided with reinforcement 8 between described housing 1 and the liner 2, increased the intensity of ladle, prevent the ladle distortion, mentioned service life.
Use ladle of the present invention to reduce the method for absorbing heat in the casting process, it is characterized in that: when using ladle to pour into a mould, open valve I 5 earlier, the metallic solution in the ladle is flowed out from gate spool 4; Open valve II 7 again, according to hydromechanical negative pressure suction principle, form negative pressure in the tube connector 6, metallic solution constantly aspirates the air in the cavity 3 in the process that flows out, improved the vacuum in the cavity 3, reduce the thermal conductivity of cavity 3, improved the insulation effect of ladle, stop heat to be delivered to housing 1 from liner 2 and be lost to the air; After cast finishes, valve-off II 7, last valve-off I 5.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although by invention has been described with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art is to be understood that, can make various changes 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. ladle, it is characterized in that: comprise housing and liner, form the cavity of sealing between described housing and the liner, described housing bottom is provided with gate spool, described gate spool is provided with the valve I of control 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 the valve II.
2. a kind of ladle according to claim 1, it 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 the liner.
4. a right to use requires 1 to 3 any described ladle to reduce the method for absorbing heat in the casting process, it is characterized in that; When using ladle to pour into a mould, open the valve I earlier, the metallic solution in the ladle is flowed out from gate spool; Open the valve II again, metallic solution constantly aspirates the air in the cavity in the process that flows out, and reduces the thermal conductivity of cavity; After cast finishes, 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 true CN103252485A (en) | 2013-08-21 |
| CN103252485B CN103252485B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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| CN (1) | CN103252485B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243623A (en) * | 2017-07-03 | 2017-10-13 | 山东钢铁股份有限公司 | A kind of ladle with vacuum layer |
| CN109676120A (en) * | 2019-01-25 | 2019-04-26 | 王康 | A kind of steel-making packet |
| CN112935230A (en) * | 2021-01-14 | 2021-06-11 | 王平 | Casting process of nodular cast iron |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271932A (en) * | 1996-04-09 | 1997-10-21 | Japan Metals & Chem Co Ltd | Ceramic ladle |
| 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 |
-
2013
- 2013-06-04 CN CN201310219109.XA patent/CN103252485B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271932A (en) * | 1996-04-09 | 1997-10-21 | Japan Metals & Chem Co Ltd | Ceramic ladle |
| 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: "《耐火材料与结晶钢生产技术》", 30 April 2012, article "长水口-钢包的连接" * |
| 汪厚植: "《汪厚植耐火材料论文选》", 31 March 2010, article "轻质长水口" * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243623A (en) * | 2017-07-03 | 2017-10-13 | 山东钢铁股份有限公司 | A kind of ladle with vacuum layer |
| CN107243623B (en) * | 2017-07-03 | 2023-03-14 | 山东钢铁股份有限公司 | Steel ladle with vacuum layer |
| CN109676120A (en) * | 2019-01-25 | 2019-04-26 | 王康 | A kind of steel-making packet |
| 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 |
| CN112935230A (en) * | 2021-01-14 | 2021-06-11 | 王平 | Casting process of nodular cast iron |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103252485B (en) | 2015-02-18 |
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