CN110102731A - A method of reducing ladle pouring remnants molten steel amount - Google Patents
A method of reducing ladle pouring remnants molten steel amount Download PDFInfo
- Publication number
- CN110102731A CN110102731A CN201910397135.9A CN201910397135A CN110102731A CN 110102731 A CN110102731 A CN 110102731A CN 201910397135 A CN201910397135 A CN 201910397135A CN 110102731 A CN110102731 A CN 110102731A
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- CN
- China
- Prior art keywords
- ladle
- molten steel
- hydraulic cylinder
- lifting hydraulic
- pouring
- 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.)
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/183—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring molten metal weight
Abstract
The present invention relates to a kind of methods for reducing ladle pouring remnants molten steel amount, include the following steps: 1) to install lifting hydraulic cylinder respectively in the bottom four corners of ladle weighing platform；2) ladle pouring latter stage starts lifting hydraulic cylinder when remaining molten steel amount is less than 15t in ladle, and molten steel is flowed without wadding in confirmation ladle before starting, and casting area is without encrustation phenomena；So that ladle is tilted to mouth of a river direction by the interoperation of lifting hydraulic cylinder, use different tilt angles according to ladle pouring number: 3) ladle stops after casting and closing slide plate, and restarting lifting hydraulic cylinder makes ladle keep in the center.The present invention makes ladle have tilt function by the way that lifting hydraulic cylinder is arranged in ladle weighing platform bottom, and determines tilt angle according to the casting number of ladle, to efficiently reduce ladle pouring remnants molten steel amount, reduces production cost.
Description
Technical field
The present invention relates to molten steel continuous casting technology field more particularly to a kind of methods for reducing ladle pouring remnants molten steel amount.
Background technique
Ladle turret is the equipment being poured in modern continuous casting using most common delivery and support ladle, is risen simultaneously
To crossing across important roles such as, continuous casting casting, ladle nozzle is in tundish when the design radius of turn of ladle can make to pour steel
Stated above position.When molten steel is cast, the crane across side is received with molten steel, ladle is placed on ladle turret, pass through steel
The revolution of packet revolving platform acts, and is parked in ladle above tundish and supplies its molten steel.The empty packet poured passes through ladle turret
Revolution, then transport back molten steel receive across.
Ladle is commonly held on ladle weighing platform on ladle turret, and ladle turret itself is without inclination function
Can, it is influenced by the resistance to material erosion of ladle bottom, ladle bottom center will appear pit in casting afterwards several times, and casting number is got over
The area and depth of more pits are bigger, and the presence of pit makes to be easy in ladle that there are remaining molten steel after casting；How to protect
Molten steel has been poured under the premise of not slag as far as possible in card casting process, has been had for improving qualified base amount and reducing production cost
Important meaning.
Summary of the invention
The present invention provides a kind of methods for reducing ladle pouring remnants molten steel amount, by setting in ladle weighing platform bottom
Setting lifting hydraulic cylinder makes ladle have tilt function, and determines tilt angle according to the casting number of ladle, thus effectively
Ladle pouring remnants molten steel amount is reduced, production cost is reduced.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A method of ladle pouring remnants molten steel amount is reduced, is included the following steps:
1) ladle turret is equipped with ladle weighing platform, installs lifting liquid respectively in the bottom four corners of ladle weighing platform
Cylinder pressure；
2) ladle pouring latter stage starts lifting hydraulic cylinder when remaining molten steel amount is less than 15t in ladle, confirms steel before starting
Molten steel is flowed without wadding in wrapping, and casting area is without encrustation phenomena；Enable ladle to mouth of a river direction by the interoperation of lifting hydraulic cylinder
Inclination uses different tilt angles according to ladle pouring number:
Ladle pouring number is 1~10 time, and tilt angle is 5.5 °~7.9 °；
Ladle pouring number is 11~20 times, and tilt angle is 8 °~9.5 °；
Ladle pouring number is greater than 20 times, and tilt angle is 3 °~5 °；
3) ladle stops after casting and closing slide plate, and restarting lifting hydraulic cylinder makes ladle keep in the center.
Compared with prior art, the beneficial effects of the present invention are:
Make ladle that there is tilt function by the way that lifting hydraulic cylinder is arranged in ladle weighing platform bottom, and according to ladle
Casting number determines tilt angle, to efficiently reduce ladle pouring remnants molten steel amount, reduces production cost.
Specific embodiment
A kind of method reducing ladle pouring remnants molten steel amount of the present invention, includes the following steps:
1) ladle turret is equipped with ladle weighing platform, installs lifting liquid respectively in the bottom four corners of ladle weighing platform
Cylinder pressure；
2) ladle pouring latter stage starts lifting hydraulic cylinder when remaining molten steel amount is less than 15t in ladle, confirms steel before starting
Molten steel is flowed without wadding in wrapping, and casting area is without encrustation phenomena；Enable ladle to mouth of a river direction by the interoperation of lifting hydraulic cylinder
Inclination uses different tilt angles according to ladle pouring number:
Ladle pouring number is 1~10 time, and tilt angle is 5.5 °~7.9 °；
Ladle pouring number is 11~20 times, and tilt angle is 8 °~9.5 °；
Ladle pouring number is greater than 20 times, and tilt angle is 3 °~5 °；
3) ladle stops after casting and closing slide plate, and restarting lifting hydraulic cylinder makes ladle keep in the center.
Following embodiment is implemented under the premise of the technical scheme of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
Not mentionleting alone bright is conventional method.
[embodiment]
In the present embodiment, the method for reducing ladle pouring remnants molten steel amount is specific as follows:
Ladle turret is equipped with 2 ladle weighing platforms, is respectively used to place 2 steel ladle；It weighs in each ladle
The bottom four corners of platform install lifting hydraulic cylinder respectively, install 8 lifting hydraulic cylinders altogether.
After lifting hydraulic cylinder is installed, operation button is installed to ladle and is operated on indoor control box, it can be by people
Work is operated manually.Ladle is set to tilt to mouth of a river direction by the interoperation of lifting hydraulic cylinder, and allowable angle of inclination
Degree is 10 °.
After functions of the equipments debugging are normal, lifting hydraulic cylinder and control system are attached, automatically controlled by control system,
It is automatic to start ladle tilt function when remaining molten steel is less than 15t in its last ladle of ladle pouring.It is necessary before starting tilt function
Guarantee that molten steel is flowed without wadding in ladle, casting area is without encrustation phenomena.
Different tilt angles is used according to ladle pouring number:
Ladle pouring number is 1~10 time, and tilt angle is 5.5 °~7.9 °；
Ladle pouring number is 11~20 times, and tilt angle is 8 °~9.5 °；
Ladle pouring number is greater than 20 times, and tilt angle is 3 °~5 °；
Ladle stops after being poured and closing slide plate, and starting lifting hydraulic cylinder makes ladle keep in the center, when the inclination angle of ladle
When degree is 0 °, it can carry out unloading long nozzle operation, ladle turret can rotate.
It is averagely cast in terms of 60 tank molten steel daily by three casting machines, after implementing the method for the invention, each ladle is averaged energy
1t steel is enough saved, every ton steel cost can then save ten thousand yuan of 365 × 60 × 0.2=4380 by 0.2 ten thousand yuan of calculating every year.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of method for reducing ladle pouring remnants molten steel amount, which comprises the steps of:
1) ladle turret is equipped with ladle weighing platform, installs raise-lower hydraulic respectively in the bottom four corners of ladle weighing platform
Cylinder；
2) ladle pouring latter stage starts lifting hydraulic cylinder when remaining molten steel amount is less than 15t in ladle, before starting in confirmation ladle
Molten steel is flowed without wadding, and casting area is without encrustation phenomena；Ladle is set to tilt to mouth of a river direction by the interoperation of lifting hydraulic cylinder,
Different tilt angles is used according to ladle pouring number:
Ladle pouring number is 1~10 time, and tilt angle is 5.5 °~7.9 °；
Ladle pouring number is 11~20 times, and tilt angle is 8 °~9.5 °；
Ladle pouring number is greater than 20 times, and tilt angle is 3 °~5 °；
3) ladle stops after casting and closing slide plate, and restarting lifting hydraulic cylinder makes ladle keep in the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397135.9A CN110102731B (en) | 2019-05-14 | 2019-05-14 | Method for reducing residual molten steel amount in ladle casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397135.9A CN110102731B (en) | 2019-05-14 | 2019-05-14 | Method for reducing residual molten steel amount in ladle casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110102731A true CN110102731A (en) | 2019-08-09 |
| CN110102731B CN110102731B (en) | 2021-02-23 |
Family
ID=67489851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910397135.9A Active CN110102731B (en) | 2019-05-14 | 2019-05-14 | Method for reducing residual molten steel amount in ladle casting |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1147917A (en) * | 1997-06-11 | 1999-02-23 | Harbison Walker Refractories Co | Improved metallurgical vessel and method for using this |
| CN201702360U (en) * | 2010-07-02 | 2011-01-12 | 武汉钢铁(集团)公司 | Steel ladle with slope-shaped ladle bottom |
| CN201807729U (en) * | 2010-09-26 | 2011-04-27 | 舞阳钢铁有限责任公司 | Continuous casting tundish for reducing steel remaining quantity |
| CN203197232U (en) * | 2013-04-28 | 2013-09-18 | 浙江自立股份有限公司 | Steel ladle bottom structure capable of effectively reducing amount of residual molten steel of steel ladle |
-
2019
- 2019-05-14 CN CN201910397135.9A patent/CN110102731B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1147917A (en) * | 1997-06-11 | 1999-02-23 | Harbison Walker Refractories Co | Improved metallurgical vessel and method for using this |
| CN201702360U (en) * | 2010-07-02 | 2011-01-12 | 武汉钢铁(集团)公司 | Steel ladle with slope-shaped ladle bottom |
| CN201807729U (en) * | 2010-09-26 | 2011-04-27 | 舞阳钢铁有限责任公司 | Continuous casting tundish for reducing steel remaining quantity |
| CN203197232U (en) * | 2013-04-28 | 2013-09-18 | 浙江自立股份有限公司 | Steel ladle bottom structure capable of effectively reducing amount of residual molten steel of steel ladle |
Non-Patent Citations (2)
| Title |
|---|
| 刘建: "基于PLC的连铸浇钢控制系统改进设计", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 庞博等: "连铸机转台钢包倾动装置研究", 《中国计量协会冶金分会2016年会论文集》 * |
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| Publication number | Publication date |
|---|---|
| CN110102731B (en) | 2021-02-23 |
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