CN114682754A - Method for dividing pouring steel blank of pouring box molten steel mixing furnace - Google Patents
Method for dividing pouring steel blank of pouring box molten steel mixing furnace Download PDFInfo
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- CN114682754A CN114682754A CN202210430642.XA CN202210430642A CN114682754A CN 114682754 A CN114682754 A CN 114682754A CN 202210430642 A CN202210430642 A CN 202210430642A CN 114682754 A CN114682754 A CN 114682754A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 43
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 abstract description 9
- 229910001208 Crucible steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the technical field of continuous casting control systems, and relates to a method for dividing a pouring box molten steel mixed furnace casting steel blank.
Description
Technical Field
The invention belongs to the technical field of continuous casting control systems, and relates to a method for dividing a pouring steel blank of a pouring box molten steel mixing furnace.
Background
In the existing approach, manual blank dividing is used for distinguishing, the number of steel blanks to be cut from the total length of each stream from a crystallizer to the original point of a cutting machine when a ladle is started to be cast is calculated, and the first division of the connection of an upper furnace and a lower furnace of each stream is used as the previous furnace. The general division rule at home and abroad is that the casting of a next furnace large ladle is the ending of the number of the cast steel billets of the previous ladle: 1. the number of the cast steel billets is counted before the next ladle is cast; 2. the total length of each stream from the crystallizer to the original point of the cutting machine can be cut into the number of the billets; 3. and when the next ladle is cast, the molten steel in the ladle can be cast to form the steel billet number.
Because the same casting time is continuous casting with the same steel grade and the molten steel composition of the continuous casting is stable, the quantity division of the steel billets is simple and easy, and the influence of mixed casting billets is not completely considered.
The continuous casting production is a continuous process, when a new furnace of molten steel starts to be cast, a certain residual amount of the previous furnace of molten steel is remained in the tundish and is mixed with the new furnace, and for each cut casting blank, in order to accurately track the furnace number of each casting blank cut by the residual amount of the residual molten steel in the tundish, the accuracy of division of a mixed casting blank after the molten steel in the tundish is mixed with the furnace is ensured, which is also one of the key parameters tracked in the continuous casting production process.
Disclosure of Invention
In view of the above, the present invention provides a method for dividing a casting billet of a mixed furnace of molten steel in a tundish, which includes tracking a furnace number of each casting billet cut by a residual amount of molten steel in the tundish, and ensuring accuracy of dividing the mixed casting billet after the mixed furnace of molten steel in the tundish.
In order to achieve the purpose, the invention provides the following technical scheme: a method for dividing a casting steel blank of a pouring box molten steel mixing furnace comprises the following steps:
s1, when the bale is cast and leaves the casting position, the system records the weight W of the bale at the timet0Casting length L of the ith stream at the last exit from the furnaceiOIn mm;
s2 sampling a casting length Li of the ith flow in a certain time periodΔtIn mm;
s3, according to the formula WΔt＝∑(Li-Li0)×Wi×TiCalculating the multiplied rho to obtain the weight of the molten steel separated from the last furnace to the current casting;
s4, when W isΔt≥Wt0If the molten steel is completely cast, the length Li of each flow is recordedΔtAnd the cutting division is used as a basis for cutting and dividing the casting blank by the furnace division line.
Optionally, in step S3, WΔtThe weight of the molten steel is the weight of the molten steel which is separated from the last furnace to the current casting, and the unit is t; wiThe width of the ith flow casting blank is in mm; t isiThe thickness of the ith flow casting blank is in mm; rho is the density of the currently cast steel grade and has the unit of kg/mm3。
The invention has the beneficial effects that: the invention relates to a method for dividing a pouring box molten steel mixed furnace casting steel blank, which accurately tracks each casting blank cut by the surplus molten steel of the pouring box according to a furnace dividing line of a continuous casting L2 process control system, and which furnace belongs ensures the accuracy of dividing the mixed casting blank after the pouring box molten steel mixed furnace; the method is used in the continuous casting L2 process control system technology, improves the accuracy of data in actual production through the application of a new technology, and has good functional effect.
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.
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.
In the concrete embodiment, according to the method,
a method for dividing a casting steel blank of a pouring box molten steel mixing furnace comprises the following steps:
s1, when the bale is cast and leaves the casting position, the system records the weight W of the bale at the timet0Casting length L of the ith stream at the last exit from the furnaceiOIn mm;
s2 sampling a casting length Li of the ith flow in a certain time periodΔtIn mm;
s3, according to the formula WΔt＝∑(Li-Li0)×Wi×TiCalculating the multiplied rho to obtain the weight of the molten steel separated from the last furnace to the current casting;
s4, when W isΔt≥Wt0If the molten steel is completely cast, the length Li of each flow is recordedΔtAnd the cutting division is used as a basis for cutting and dividing the casting blank by the furnace division line.
Optionally, in step S3, WΔtThe weight of the molten steel is the weight of the molten steel which is separated from the last furnace to the current casting, and the unit is t; wiThe width of the ith flow casting blank is in mm; t isiThe thickness of the ith flow casting blank is in mm; rho is the density of the currently cast steel grade and has the unit of kg/mm3。
According to a furnace dividing line of a continuous casting L2 process control system, each casting blank cut by the surplus molten steel of the tundish is accurately tracked, and the furnace belonging to the furnace ensures the accuracy of dividing the mixed casting blank after the molten steel of the tundish is mixed with the furnace.
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 (2)
1. A method for dividing a casting steel blank of a pouring box molten steel mixing furnace is characterized by comprising the following steps:
s1, when the bale is cast and leaves the casting position, the system records the weight W of the bale at the timet0Casting length L of the ith stream at the last exit from the furnaceiOIn mm;
s2 sampling a casting length Li of the ith flow in a certain time periodΔtIn mm;
s3, according to the formula WΔt＝∑(Li-Li0)×Wi×TiCalculating the multiplied rho to obtain the weight of the molten steel separated from the last furnace to the current casting;
s4, when W isΔt≥Wt0Then, the molten steel remained in the tundish in the last furnace is indicatedThe remainder was cast completely and the length of each stream at that time, Li, was recordedΔtAnd the cutting division is used as a basis for cutting and dividing the casting blank by the furnace division line.
2. The method for dividing the steel billet cast by the pouring basket and the molten steel mixing furnace according to the claim 1, characterized in that: in step S3, WΔtThe weight of the molten steel is the weight of the molten steel which is separated from the last furnace to the current casting, and the unit is t; wiThe width of the ith flow casting blank is in mm; t isiThe thickness of the ith flow casting blank is in mm; rho is the density of the current casting steel grade and has the unit of kg/mm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210430642.XA CN114682754A (en) | 2022-04-22 | 2022-04-22 | Method for dividing pouring steel blank of pouring box molten steel mixing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210430642.XA CN114682754A (en) | 2022-04-22 | 2022-04-22 | Method for dividing pouring steel blank of pouring box molten steel mixing furnace |
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| CN114682754A true CN114682754A (en) | 2022-07-01 |
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| CN202210430642.XA Pending CN114682754A (en) | 2022-04-22 | 2022-04-22 | Method for dividing pouring steel blank of pouring box molten steel mixing furnace |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0871712A (en) * | 1994-09-08 | 1996-03-19 | Nippon Steel Corp | Method for deciding mixing range of different kinds of steel in continuous casting |
| CN105268936A (en) * | 2014-07-16 | 2016-01-27 | 上海梅山钢铁股份有限公司 | Control method for mixed casting of continuous-cast tundish |
| CN105458202A (en) * | 2015-12-03 | 2016-04-06 | 武汉钢铁(集团)公司 | Continuous casting sheet billet cutting tracking method |
| CN112417217A (en) * | 2020-10-30 | 2021-02-26 | 北京科技大学 | Continuous casting data space-time matching method based on heat tracking and casting flow tracking |
| CN113333706A (en) * | 2021-05-18 | 2021-09-03 | 唐山不锈钢有限责任公司 | Method for realizing identification and optimized cutting of continuous casting unsteady-state casting blank at first level |
| CN114247861A (en) * | 2020-09-23 | 2022-03-29 | 上海梅山钢铁股份有限公司 | Optimized cutting method for different steel type mixed casting continuous casting slab |
-
2022
- 2022-04-22 CN CN202210430642.XA patent/CN114682754A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0871712A (en) * | 1994-09-08 | 1996-03-19 | Nippon Steel Corp | Method for deciding mixing range of different kinds of steel in continuous casting |
| CN105268936A (en) * | 2014-07-16 | 2016-01-27 | 上海梅山钢铁股份有限公司 | Control method for mixed casting of continuous-cast tundish |
| CN105458202A (en) * | 2015-12-03 | 2016-04-06 | 武汉钢铁(集团)公司 | Continuous casting sheet billet cutting tracking method |
| CN114247861A (en) * | 2020-09-23 | 2022-03-29 | 上海梅山钢铁股份有限公司 | Optimized cutting method for different steel type mixed casting continuous casting slab |
| CN112417217A (en) * | 2020-10-30 | 2021-02-26 | 北京科技大学 | Continuous casting data space-time matching method based on heat tracking and casting flow tracking |
| CN113333706A (en) * | 2021-05-18 | 2021-09-03 | 唐山不锈钢有限责任公司 | Method for realizing identification and optimized cutting of continuous casting unsteady-state casting blank at first level |
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Application publication date: 20220701 |
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