CN115283632A - Method for reducing production of non-fixed-size billets during shutdown of billet continuous casting machine - Google Patents
Method for reducing production of non-fixed-size billets during shutdown of billet continuous casting machine Download PDFInfo
- Publication number
- CN115283632A CN115283632A CN202210926309.8A CN202210926309A CN115283632A CN 115283632 A CN115283632 A CN 115283632A CN 202210926309 A CN202210926309 A CN 202210926309A CN 115283632 A CN115283632 A CN 115283632A
- Authority
- CN
- China
- Prior art keywords
- flow
- casting
- mark
- molten steel
- cutoff
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000009749 continuous casting Methods 0.000 title abstract description 9
- 238000005266 casting Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000009628 steelmaking Methods 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- 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
- B22D11/163—Controlling or regulating processes or operations for cutting cast stock
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the field of steelmaking continuous casting, and relates to a method for reducing non-fixed-size billets generated by a small square billet continuous casting machine in a halt mode.
Description
Technical Field
The invention belongs to the field of steelmaking continuous casting, and relates to a method for reducing non-sizing billet generation during shutdown of a billet continuous casting machine.
Background
In the continuous casting production link of the steelmaking production process flow, in order to meet the requirement of blank sizing required by steel rolling, a casting blank needs to be cut off by a cutting vehicle according to a certain length, after molten steel is continuously cast for a period of time, continuous casting machine equipment needs to be shut down for maintenance, the tail part of the casting blank needs to be cut off due to quality defects, and similarly, the shutdown time of each flow of casting needs to be controlled, so that the minimum cut-off quantity is ensured while the sizing requirement is met, the residual molten steel of a tundish does not exceed the standard, and the shutdown time is shortened while waste is avoided.
Disclosure of Invention
In view of the above, the present invention provides a method for reducing non-fixed-length billets generated during the shutdown of a billet caster, so as to optimize the shutdown time of each casting flow and reduce the generation of non-fixed-length billets.
In order to achieve the purpose, the invention provides the following technical scheme: a method for reducing the production of non-fixed-size billets during the shutdown of a billet continuous caster comprises the following steps:
s1, calculating the length distance left after X times of scaling according to a known cutting origin, compensating the length distance to the length required by X +1 times of scaling, adding a compensation cutting length, making a cut-off mark beside a roller casting after cutting, scaling, adding the compensation cutting length, and calculating the weight of molten steel to be W;
s2, N-flow casting during tail casting:
s21, when the residual molten steel amount of the tundish is (N-1) × Wt, performing flow cutoff treatment on two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s22, when the residual molten steel amount of the tundish is (N-3) × Wt, performing flow cutoff treatment on the two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s23, performing flow cutoff treatment on the first flow of the casting blank which preferentially reaches a flow cutoff mark when the residual molten steel amount of the tundish is (W + 2) t;
and S24, stopping pouring by cutting off when the flow billet head reaches the flow cut-off mark.
The invention has the beneficial effects that: the invention relates to a method for reducing the production of non-fixed-length billets due to the halt of a billet continuous casting machine, which reduces the production of non-fixed-length billets; the yield of the casting machine is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow chart of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a method for reducing the production of non-fixed-length billets during the shutdown of a billet caster comprises the following steps:
s1, calculating the remaining length distance after X times of scaling according to a known cutting origin, compensating the length distance to the length required by X +1 times of scaling, adding a compensation cutting length, making a cut-off mark beside a roller casting flow after cutting, and calculating the weight of molten steel to be W by scaling and the compensation cutting length;
s2, N-flow casting during tail casting:
s21, when the residual molten steel amount of the tundish is (N-1) × Wt, performing flow cutoff treatment on two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s22, when the residual molten steel amount of the tundish is (N-3) × Wt, performing flow cutoff treatment on the two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s23, performing flow cutoff treatment on the first flow of the casting blank which preferentially reaches a flow cutoff mark when the residual molten steel amount of the tundish is (W + 2) t;
and S24, stopping pouring by cutting off when the flow billet head reaches the flow cut-off mark.
The invention reduces the production of non-fixed size blanks during shutdown to less than or equal to 1 in the traditional method for the cutoff operation during the shutdown.
In the embodiment, because the casting speed of each flow is different and the casting length of each flow is greatly different, the rest casting fixed-size blank support is calculated according to the weight of the rest molten steel in the tundish, the stop time of each flow of casting is optimized, and the generation of non-fixed-size blanks is reduced.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (1)
1. A method for reducing the production of non-fixed-size billets during the shutdown of a billet caster is characterized by comprising the following steps:
s1, calculating the remaining length distance after X times of scaling according to a known cutting origin, compensating the length distance to the length required by X +1 times of scaling, adding a compensation cutting length, making a cut-off mark beside a roller casting flow after cutting, and calculating the weight of molten steel to be W by scaling and the compensation cutting length;
s2, N-flow casting during tail casting:
s21, when the residual molten steel amount of the tundish is (N-1) × Wt, performing flow cutoff treatment on two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s22, when the residual molten steel amount of the tundish is (N-3) × Wt, performing flow cutoff treatment on the two flows of which the head of the casting blank reaches a flow cutoff mark preferentially;
s23, when the amount of the residual molten steel in the tundish is (W + 2) t, performing cutoff treatment on the first flow of the casting blank which preferentially reaches a cutoff mark;
and S24, stopping pouring by cutting off when the flow billet head reaches the flow cut-off mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926309.8A CN115283632B (en) | 2022-08-03 | 2022-08-03 | Method for reducing production of non-fixed-length billets during shutdown of small square billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926309.8A CN115283632B (en) | 2022-08-03 | 2022-08-03 | Method for reducing production of non-fixed-length billets during shutdown of small square billet continuous casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115283632A true CN115283632A (en) | 2022-11-04 |
| CN115283632B CN115283632B (en) | 2024-03-12 |
Family
ID=83825604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210926309.8A Active CN115283632B (en) | 2022-08-03 | 2022-08-03 | Method for reducing production of non-fixed-length billets during shutdown of small square billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115283632B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2440414A1 (en) * | 1974-05-07 | 1975-11-20 | Florin Stahl Walzwerk | Multi-strand continuous casting - where electronic timer closes tundish nozzles so only last billet cast has short tail-end |
| JPS6160250A (en) * | 1984-08-31 | 1986-03-27 | Hitachi Ltd | Method for controlling cutting with continuous casting installation |
| JPS62179858A (en) * | 1986-02-03 | 1987-08-07 | Mitsubishi Heavy Ind Ltd | Cutting length controlling device |
| DE3624596A1 (en) * | 1986-07-21 | 1988-01-28 | Zimmermann & Jansen Gmbh | METHOD FOR CONTROLLING A MULTI-WIRE CONTINUOUS CASTING SYSTEM |
| JPH0985396A (en) * | 1995-09-25 | 1997-03-31 | Nippon Steel Corp | Method for completing casting in continuous casting |
| JPH09253811A (en) * | 1996-03-27 | 1997-09-30 | Kawasaki Steel Corp | Method for cutting continuously cast slab |
| JP2000317583A (en) * | 1999-05-07 | 2000-11-21 | Nippon Steel Corp | Casting control method in billet continuous casting equipment |
| JP2003170247A (en) * | 2001-12-10 | 2003-06-17 | Nippon Steel Corp | Method for stopping molten steel injection into strand in continuous casting |
| RU2254205C1 (en) * | 2004-05-12 | 2005-06-20 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Method for producing measured-length billets in multistrand machine for billet continuous casting |
| CN103100679A (en) * | 2013-01-25 | 2013-05-15 | 舞阳钢铁有限责任公司 | Operation process for continuously-casting high-alloy steel tail furnace |
| CN103264149A (en) * | 2013-05-24 | 2013-08-28 | 永兴特种不锈钢股份有限公司 | Method and device using computer programs to carry out continuous casting tail blank fixed length optimizing cutting |
| CN104226951A (en) * | 2014-09-05 | 2014-12-24 | 河北钢铁股份有限公司邯郸分公司 | Method for improving yield of qualified sized casting blanks at casting stop stage of continuous casting machine |
| CN104308138A (en) * | 2014-11-14 | 2015-01-28 | 北京首钢自动化信息技术有限公司 | Casting end-point control device and method thereof based on multiple fixed lengths and multiple strands |
| CN105478701A (en) * | 2015-12-21 | 2016-04-13 | 北京首钢自动化信息技术有限公司 | Automatic pouring stopping control method for double-flow plate blank |
| CN107649657A (en) * | 2017-08-29 | 2018-02-02 | 武钢集团昆明钢铁股份有限公司 | A kind of small billet tundish stops the method poured |
| CN110976804A (en) * | 2019-12-11 | 2020-04-10 | 中冶南方连铸技术工程有限责任公司 | Sizing control method of continuous casting billet |
| CN114713784A (en) * | 2022-04-26 | 2022-07-08 | 承德建龙特殊钢有限公司 | Continuous casting tail billet sizing optimization cutting method |
-
2022
- 2022-08-03 CN CN202210926309.8A patent/CN115283632B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2440414A1 (en) * | 1974-05-07 | 1975-11-20 | Florin Stahl Walzwerk | Multi-strand continuous casting - where electronic timer closes tundish nozzles so only last billet cast has short tail-end |
| JPS6160250A (en) * | 1984-08-31 | 1986-03-27 | Hitachi Ltd | Method for controlling cutting with continuous casting installation |
| JPS62179858A (en) * | 1986-02-03 | 1987-08-07 | Mitsubishi Heavy Ind Ltd | Cutting length controlling device |
| DE3624596A1 (en) * | 1986-07-21 | 1988-01-28 | Zimmermann & Jansen Gmbh | METHOD FOR CONTROLLING A MULTI-WIRE CONTINUOUS CASTING SYSTEM |
| WO1988000504A1 (en) * | 1986-07-21 | 1988-01-28 | Zimmermann & Jansen Gmbh | Process for controlling a multi-line casting plant |
| EP0274516A1 (en) * | 1986-07-21 | 1988-07-20 | Zimmermann & Jansen Gmbh | Process for controlling a multi-line casting plant. |
| JPH0985396A (en) * | 1995-09-25 | 1997-03-31 | Nippon Steel Corp | Method for completing casting in continuous casting |
| JPH09253811A (en) * | 1996-03-27 | 1997-09-30 | Kawasaki Steel Corp | Method for cutting continuously cast slab |
| JP2000317583A (en) * | 1999-05-07 | 2000-11-21 | Nippon Steel Corp | Casting control method in billet continuous casting equipment |
| JP2003170247A (en) * | 2001-12-10 | 2003-06-17 | Nippon Steel Corp | Method for stopping molten steel injection into strand in continuous casting |
| RU2254205C1 (en) * | 2004-05-12 | 2005-06-20 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Method for producing measured-length billets in multistrand machine for billet continuous casting |
| CN103100679A (en) * | 2013-01-25 | 2013-05-15 | 舞阳钢铁有限责任公司 | Operation process for continuously-casting high-alloy steel tail furnace |
| CN103264149A (en) * | 2013-05-24 | 2013-08-28 | 永兴特种不锈钢股份有限公司 | Method and device using computer programs to carry out continuous casting tail blank fixed length optimizing cutting |
| CN104226951A (en) * | 2014-09-05 | 2014-12-24 | 河北钢铁股份有限公司邯郸分公司 | Method for improving yield of qualified sized casting blanks at casting stop stage of continuous casting machine |
| CN104308138A (en) * | 2014-11-14 | 2015-01-28 | 北京首钢自动化信息技术有限公司 | Casting end-point control device and method thereof based on multiple fixed lengths and multiple strands |
| CN105478701A (en) * | 2015-12-21 | 2016-04-13 | 北京首钢自动化信息技术有限公司 | Automatic pouring stopping control method for double-flow plate blank |
| CN107649657A (en) * | 2017-08-29 | 2018-02-02 | 武钢集团昆明钢铁股份有限公司 | A kind of small billet tundish stops the method poured |
| CN110976804A (en) * | 2019-12-11 | 2020-04-10 | 中冶南方连铸技术工程有限责任公司 | Sizing control method of continuous casting billet |
| CN114713784A (en) * | 2022-04-26 | 2022-07-08 | 承德建龙特殊钢有限公司 | Continuous casting tail billet sizing optimization cutting method |
Non-Patent Citations (3)
| Title |
|---|
| 代刚;陈琳;刘乐东;: "五流大方坯连铸机尾坯优化操作的实践", 特钢技术, no. 02, 30 June 2009 (2009-06-30), pages 30 - 31 * |
| 庞维成, 陈松林: "连铸自动化过程中尾坯优化切割模块设计", 铸造设备研究, no. 02, 30 April 2005 (2005-04-30), pages 14 - 16 * |
| 张汉荣: "新疆八一钢厂连铸机铸流顺次关闭计算方法", 冶金自动化, no. 03, pages 23 - 25 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115283632B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1840252A (en) | Production process of continuous-casting tandem-rolling coiled sheet of medium thick plate | |
| CN103586433A (en) | Method for increasing flaw detection yield of continuous casting sheet head billet and tail billet | |
| CN105945250A (en) | Method for improving internal quality of high-alloy steel billet | |
| CN109396368B (en) | Method for improving internal quality of high-carbon steel bloom continuous casting billet | |
| CN101391264A (en) | Technique method of thin middle plate continuous casting and rolling production | |
| Wolf | History of continuous casting | |
| CN202143944U (en) | Continuous casting device for casting continuous casting blank with molten metal | |
| CN101758103A (en) | Method for producing high-speed flat tool steel wire | |
| CN114086056A (en) | Rare earth-containing seamless steel tube special for bearing axle under low-temperature working condition and manufacturing method thereof | |
| CN110227806B (en) | Device for greatly pressing solidification tail end of casting-rolling type continuous casting machine | |
| US5769149A (en) | Plant for producing hot-rolled steel strip | |
| CN115283632A (en) | Method for reducing production of non-fixed-size billets during shutdown of billet continuous casting machine | |
| CN107475494B (en) | A kind of curved control method of air-cooled bainitic steels bloom | |
| CN102310078B (en) | Continuous-casting continuous-rolling method for producing sectional materials and bar-wire materials by using residual heat of molten steel | |
| CN104646641A (en) | Pulling rate reduction control method and tundish changing control method in continuous casting system | |
| CN107790662B (en) | Method and device for controlling center segregation of plate blank | |
| CN110666124A (en) | Method for producing cold forging steel at high drawing speed | |
| CN113600770B (en) | System and method for reducing waste amount of steel billets during continuous casting and replacing of water outlet | |
| CN104841902A (en) | Optimization device and method for casting blank production plan during period of rapidly exchanging tundish | |
| CN108453226A (en) | A kind of rectangle steel billet back-end crop control method | |
| CN109648055B (en) | Bearing steel continuous casting tail billet quality control method under unsteady state pouring condition | |
| CN110976800B (en) | Method for solving casting blank cracks of high-carbon crack sensitive steel | |
| CN112338157A (en) | Billet solidification forming process | |
| CN114669723B (en) | Control method for effective rolling interval of casting blank | |
| CN217858708U (en) | Covering slag adding device for continuous casting of special-shaped blank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |