CN114210942B - Method for calculating ladle pouring position in closed loop mode - Google Patents
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Abstract
The invention relates to a closed-loop type ladle pouring position calculating method, and belongs to the technical field of steel-making technology analysis methods. The technical scheme of the invention is as follows: determining the actual casting position of each furnace ladle by solving the relative meter weight, dividing the furnace number information of the reported points again accurately according to the actual casting position of each furnace ladle and the relative position of the reported points on the casting blank, searching the corresponding furnace steelmaking smelting process according to the actual information of the damaged rails, and analyzing the reported damage reasons of the steel rails. The beneficial effects of the invention are as follows: the problem that the total length of the theoretical casting blank of the whole pouring ladle molten steel is unequal to the total length of casting blanks actually divided by continuous casting can be effectively solved, the problem that the furnace number information of part of steel rails is inaccurate is solved, the effect of rapidly locking the reasons for the steel rail damage is achieved, and the working efficiency can be greatly improved.
Description
Technical Field
The invention relates to a closed-loop type ladle pouring position calculating method, and belongs to the technical field of steel-making technology analysis methods.
Background
In the process of smelting heavy rail casting blanks, the fixed length of the hundred-meter rail casting blanks with the same section specification can not be switched at will in the casting process, so that the molten steel quantity of each ladle of each furnace can not be exactly cast into a multiple of the set fixed length, and the actual pouring position of the ladle is not the cutting position of the continuous casting blanks.
In the production process, errors exist between the ladle weighing and the casting blank weighing, the error is generated again due to the size change in the casting blank cooling process, so that the total length of the casting blank cast by the whole pouring ladle molten steel is not always equal to that of the casting blank cast by continuous casting, meanwhile, the casting is stopped from the first furnace to the last furnace according to the continuous casting blank dividing rule in the casting process, the problem that the last furnace is reserved for the casting blank of the next furnace by the next furnace or the last furnace exists, for example, when the length of the casting blank cast by the ladle molten steel is smaller than that of the casting blank cast by the ladle molten steel, the casting blank of the next furnace needs to be supplemented, and when the length of the casting blank cast by the ladle molten steel is greater than that of the casting blank cast by the continuous casting method, the rest casting blank needs to be reserved for the next furnace.
Therefore, in the process of analyzing the steel rail damage reporting reasons, the information such as the furnace number of partial damaged rails is not the casting billet of the furnace molten steel, so that the problems of low efficiency, poor accuracy and the like exist when the specific steel rail damage reporting reasons are searched, and great inconvenience is brought to the work.
Disclosure of Invention
The invention aims to provide a closed-loop type ladle casting position calculating method, which can effectively solve the problem that the total length of a theoretical casting billet of the whole casting ladle molten steel is unequal to the total length of casting blanks actually separated by continuous casting by adopting a method for calculating the actual casting position of a reducing ladle, and solves the problem that the furnace number information of part of steel rails is inaccurate, thereby having the effect of rapidly locking the damage cause of the steel rails, greatly improving the working efficiency and effectively solving the problems in the background technology.
The technical scheme of the invention is as follows: a method of closed loop calculating a ladle open position comprising the steps of:
(1) Dividing the total weight of molten steel of a cast blank by the total length of all cast blanks cast by each stream to obtain the relative meter weight belonging to the casting time;
(2) Dividing the weight of molten steel of casting blanks cast by each furnace for casting times by the relative meter weight to obtain the length of the casting blanks cast by each furnace in the molten steel theory;
(3) Calculating according to the length of a casting blank theoretically cast by each furnace of molten steel and the length of each furnace of casting blank practically divided by continuous casting during production, and determining the actual casting position of each furnace ladle;
(4) And dividing the sawing length of the cooling bed by the rolling compression ratio according to the flaw position of the steel rail and reducing the relative position of the flaw point on the casting blank.
(5) According to the actual casting position of each heat ladle, the relative position of the flaw point on the casting blank is accurately divided again, heat number information of the flaw point is accurately divided again, the corresponding heat steelmaking smelting process is searched according to the real information of the flaw rail, and the flaw reason of the steel rail is analyzed.
In the step (3), when the length of a casting blank theoretically cast by molten steel is larger than that of each furnace of casting blank actually divided by continuous casting, the actual casting position of the ladle is on the right side of the tail end of the casting blank actually divided by continuous casting; when the length of the casting blank which is cast by the molten steel theory is smaller than that of each furnace of casting blank which is actually divided by continuous casting, the actual casting position of the ladle is at the left side of the tail end of the casting blank which is actually divided by continuous casting.
In the step (1), when the ladle reaches the continuous casting rotary table, the weighing system can know the initial weight of the ladle and the leaving weight of the ladle, and after stopping casting, the tundish weighing system can know the residual weight of the tundish, wherein the difference between the total weight of the ladle casting steel and the residual weight of the tundish is the total weight of molten steel for casting a casting blank.
In the step (1), the total length of all casting blanks cast by each flow comprises the length of a dummy ingot blank and the length of a tail blank of each casting flow.
In the step (3), the length of each furnace casting blank actually divided by continuous casting during production comprises the length of each casting dummy ingot and the length of each casting tail blank after casting stop.
In the step (3), the ladle casting position is calculated only from the 2 nd continuous casting furnace.
In the step (4), the rolling compression ratio is obtained by dividing the cross-sectional area of a casting blank by the cross-sectional area of a steel rail.
The beneficial effects of the invention are as follows: the method for calculating the actual casting position of the reducing ladle can effectively solve the problem that the total length of the theoretical casting blank of the molten steel of the whole casting ladle is unequal to the total length of the casting blank actually divided by continuous casting, and solves the problem that the furnace number information of part of steel rails is inaccurate, thereby having the effect of rapidly locking the reasons of the steel rail damage and greatly improving the working efficiency.
Drawings
FIG. 1 is a schematic diagram of actual pouring position of each heat ladle in the continuous casting process in embodiment 1 of the invention;
FIG. 2 is a schematic diagram of actual pouring position of each heat ladle in the continuous casting process in embodiment 2 of the present invention;
fig. 3 is a schematic diagram of actual pouring position of each heat ladle in the continuous casting process in embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments, and it is apparent that the described embodiments are a small part of the embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
A method of closed loop calculating a ladle open position comprising the steps of:
(1) Dividing the total weight of molten steel of a cast blank by the total length of all cast blanks cast by each stream to obtain the relative meter weight belonging to the casting time;
(2) Dividing the weight of molten steel of casting blanks cast by each furnace for casting times by the relative meter weight to obtain the length of the casting blanks cast by each furnace in the molten steel theory;
(3) Calculating according to the length of a casting blank theoretically cast by each furnace of molten steel and the length of each furnace of casting blank practically divided by continuous casting during production, and determining the actual casting position of each furnace ladle;
(4) And dividing the sawing length of the cooling bed by the rolling compression ratio according to the flaw position of the steel rail and reducing the relative position of the flaw point on the casting blank.
(5) According to the actual casting position of each heat ladle, the relative position of the flaw point on the casting blank is accurately divided again, heat number information of the flaw point is accurately divided again, the corresponding heat steelmaking smelting process is searched according to the real information of the flaw rail, and the flaw reason of the steel rail is analyzed.
In the step (3), when the length of a casting blank theoretically cast by molten steel is larger than that of each furnace of casting blank actually divided by continuous casting, the actual casting position of the ladle is on the right side of the tail end of the casting blank actually divided by continuous casting; when the length of the casting blank which is cast by the molten steel theory is smaller than that of each furnace of casting blank which is actually divided by continuous casting, the actual casting position of the ladle is at the left side of the tail end of the casting blank which is actually divided by continuous casting.
In the step (1), when the ladle reaches the continuous casting rotary table, the weighing system can know the initial weight of the ladle and the leaving weight of the ladle, and after stopping casting, the tundish weighing system can know the residual weight of the tundish, wherein the difference between the total weight of the ladle casting steel and the residual weight of the tundish is the total weight of molten steel for casting a casting blank.
In the step (1), the total length of all casting blanks cast by each flow comprises the length of a dummy ingot blank and the length of a tail blank of each casting flow.
In the step (3), the length of each furnace casting blank actually divided by continuous casting during production comprises the length of each casting dummy ingot and the length of each casting tail blank after casting stop.
In the step (3), the ladle casting position is calculated only from the 2 nd continuous casting furnace.
In the step (4), the rolling compression ratio is obtained by dividing the cross-sectional area of a casting blank by the cross-sectional area of a steel rail.
In practical application, the detailed steps of the invention are as follows:
(1) Calculating the total weight of the ladle casting steel, wherein the total weight of the ladle casting steel in the whole continuous casting process is W LD When the ladle reaches the continuous casting rotary table, the weighing system can know the initial weight of the ladle and the leaving weight of the ladle, and the difference value of the initial weight and the leaving weight is the total weight of the ladle casting steel; w (W) LD ＝W 1 +W 2 +W i +……+W n ，W 1 Weight of the 1 st furnace casting steel, W 2 Weight of the 2 nd furnace casting steel, W i The weight of the steel poured in the ith furnace is equal to or more than 1 and equal to or less than n, n is the number of continuous pouring furnaces and is a positive integer, and the weight of the residual steel in the tundish after stopping pouring is W 0 。
(2) Calculate the weight of molten steel used for casting all billets, w=w LD -W 0 。
(3) Calculating total length L of all casting blanks cast by each stream according to continuous casting cutting-off actual results Total (S) ，L Total (S) ＝L 1 +L 2 +……+Lx，L 1 Is the first in the continuous casting process1 actual casting length of casting blank, L 2 For actually casting the length L of a casting blank in the 2 nd casting flow in the continuous casting process x In order to actually cast the length of a casting blank of the xth casting flow in the continuous casting process, the number of the casting flows actually cast by continuous casting is x. L, L Total (S) Including each cast-flow dummy ingot and tail billet.
(4) Calculating the relative meter weight of casting blank, wherein MG=W/L Total (S)
(5) Calculating the length of a casting blank theoretically cast by each furnace of molten steel as JZ i I.e. JZ i ＝W i /MG，JZ 1 JZ is the length of casting blank theoretically cast by the 1 st furnace ladle molten steel i For the length of the casting blank theoretically cast by the i-th ladle of molten steel, when i=n, JZ n ＝(W n -W 0 )/MG。
(6) Calculating the length of each furnace casting blank of actual division of continuous casting during production according to continuous casting cutting performance to be FP i ，FP 1 The length of the casting blank, FP, actually divided for furnace 1 i The length of the casting blank actually divided for the ith furnace. FP (Fabry-Perot) 1 Comprising cast-flow dummy ingot blanks, FP n Including each cast strand tail billet after stopping casting.
(7) Calculating the actual pouring position of the ladle in the casting process, wherein the pouring position of the ith furnace ladle is KJ i ，
JZ i-1 -FP i-1 +CZ i-2 ＝CZ i-1 ,(2≤i≤n，CZ i-2 ＝0)
CZ i-1 The difference between the casting blank length cast by the i-1 th furnace molten steel and the casting blank length divided by continuous casting is calculated as CZ i-1 >0, the casting blank cast by the molten steel in the ith furnace is reserved in the ith furnace, so that the ladle casting position of the ith furnace is that the tail end of the casting blank divided by the ith furnace moves rightwards (CZ) i-1 /x)m；
When CZ i-1 <When 0, the casting blank divided by the i-1 th furnace needs to be supplemented by the casting blank cast by the i-th furnace molten steel, so that the i-th furnace ladle casting position moves leftwards at the tail end of the casting blank divided by the i-1 th furnace (CZ) i-1 /x)m。
Only need to calculate the ladle casting position from the 2 nd furnace of the continuous casting furnace, so that when i is more than or equal to 2 and less than or equal to n and i is more than or equal to 2, CZ is calculated i-2 ＝0。
(8) Calculating the position of the flaw point relative to the casting blank according to the flaw position of the steel rail, wherein DS= (RD+QT)/RR, DS is the position of the flaw point relative to the casting blank, RD is the flaw position of the steel rail, QT is the length of the sawing head of the hundred-meter rail on the cooling bed, and RR is the rolling compression ratio. The casting blank cross-sectional area divided by the steel rail cross-sectional area is rolling compression ratio, the casting blank size is 280mm by 380mm, the 60N rail compression ratio is 13.8, the 60kg/m rail compression ratio is 13.7, and the 50kg/m rail compression ratio is 16.2.
(9) And (3) re-matching smelting information such as the number of the casting blank furnace number and the like according to the actual casting position of the large ladle divided by each furnace number, the casting blank length of each casting stream for actual casting and the steel rail flaw position.
Example 1:
continuous casting furnace number n= 3,1C0001, 1C0002, 1C0003 is the furnace number information of the 1 st furnace, the 2 nd furnace and the 3 rd furnace of the casting time, the continuous casting machine is 5 machines and 5 flows, and x= 5,W 1 ＝125.38t，W 2 ＝131.35t，W 3 = 140.62t, the residual steel weight W of the tundish after stopping casting for times 0 ＝15t，W LD ＝397.35t，W＝382.35t。
Calculating the total length of the whole casting blank according to continuous casting cutting results, wherein each casting blank is 6.5m and each tail blank is 5m, and specific data are shown in table 1:
TABLE 1
| Continuous casting flow | L1 | L2 | L3 | L4 | L5 | L total |
| Length/m of casting blank | 103.82 | 103.82 | 103.82 | 103.82 | 103.82 | 519.10 |
The relative meter weight of the current casting MG= 0.7366t/m,
calculating the length JZ of theoretical castable blank of molten steel in each furnace i ，JZ i ＝W i MG, JZ when i=n n ＝(W n -W 0 ) MG, as shown in table 2:
TABLE 2
Calculating the length FP of casting blanks divided by each furnace in the actual casting process according to continuous casting cutting performance i Calculating the actual pouring position KJ of the ladle in the casting process i As shown in table 3:
TABLE 3 Table 3
i＝2，CZ i-2 ＝0，CZ 1 ＝JZ 1 -FP 1 +CZ 0 ＝170.215-177.700＝-7.485m，
Due to CZ 1 <0, the casting blank divided by the 1 st furnace continuous casting needs to be supplemented by the casting blank cast by the 2 nd furnace molten steel, so the 2 nd furnace ladle casting position KJ 2 The tail end of the casting blank divided in the 1 st furnace moves leftwards by 1.497m.
i＝n＝3,CZ 2 ＝JZ 2 -FP 2 +CZ 1 ＝178.319-197.750-7.485＝-26.916m，
Due to CZ 2 <0, the casting blank divided by the 2 nd furnace continuous casting needs to be supplemented by the casting blank cast by the 3 rd furnace molten steel, so that the 3 rd furnace ladle casting position KJ 3 And (5) moving the tail end of the casting blank divided by the furnace 2 to the left for 5.383m.
Rail damage information 1C0003-205 is 1C0003 furnace No. 2 casting stream No. 5, and specific rail damage information is shown in Table 4:
TABLE 4 Table 4
| Rail damage information | RD/m | QT/m | Rail specification | RR | DS/m |
| 1C0002-205 | 93 | 1.5 | 60N | 13.8 | 6.848 |
In combination with the actual casting position of the ladle, the length of the casting blank is theoretically cast in each heat, and as can be seen from the schematic diagram 1, the 5 th casting blank of each casting flow in the heat of 1C0002 is divided into 1C0002 casting blanks, but the 3 rd molten steel is actually cast from the 5 th casting blank 2.527m of each casting flow, the steel rail damage point occurs after the 3 rd casting is started, and obviously, the investigation on the steel-making processes such as 3 rd submerged casting, open casting, tundish liquid level, crystallizer liquid level and the like should be focused.
Example 2
Continuous casting furnace number n= 3,1B0001, 1B0002, 1B0003 is the furnace number information of the 1 st, 2 nd and 3 rd furnace of casting time, the continuous casting machine is 5 machine 5 flows, and x= 5,W 1 ＝145.48t，W 2 ＝128.24t，W 3 = 135.45t, the residual steel weight W of the tundish after stopping casting for times 0 ＝18t，W LD ＝409.17t，W＝391.17t。
Calculating the total length of the whole casting blank according to the continuous casting cutting actual results, wherein each casting blank is 6.5m, each tail blank is 5m, and specific data are shown in table 5:
TABLE 5
| Continuous casting flow | L1 | L2 | L3 | L4 | L5 | L total |
| Length/m of casting blank | 103.620 | 103.620 | 103.620 | 103.620 | 103.620 | 518.10 |
The relative meter weight of the current casting MG= 0.7550t/m,
calculating the length JZ of theoretical castable blank of molten steel in each furnace i ，JZ i ＝W i MG, JZ when i=n n ＝(W n -W 0 ) MG, as shown in table 6:
TABLE 6
Calculating the length FP of casting blanks divided by each furnace in the actual casting process according to continuous casting cutting performance i Calculating the actual pouring position KJ of the ladle in the casting process i As shown in table 7:
TABLE 7
i＝2，CZ i-2 ＝0，CZ 1 ＝JZ 1 -FP 1 +CZ 0 ＝192.688-177.500＝15.188m，
When CZ i-1 >0, the casting blank cast by the molten steel in the 1 st furnace is reserved in the 2 nd furnace, so that the ladle casting position KJ of the 2 nd furnace 2 The tail end of the casting blank divided by the 1 st furnace moves to the right for 3.037m;
i＝n＝3,CZ 2 ＝JZ 2 -FP 2 +CZ 1 ＝169.854-157.800+15.188＝27.242m，
when CZ i-1 >0, the casting blank cast by the molten steel in the 2 nd furnace is reserved in the 3 rd furnace, so that the 3 rd furnace ladle casting position KJ 3 The tail end of the casting blank divided by the 2 nd furnace moves to the right for 5.448m;
rail damage information 1B0002-201 is 1B0002 furnace 2 nd cast stream 1 st branch, and specific rail damage information is shown in Table 8:
TABLE 8
| Rail damage information | RD/m | QT/m | Rail specification | RR | DS/m |
| 1B0002-201 | 8.0 | 2.0 | 60Kg/m | 13.7 | 0.73 |
In combination with the actual pouring position of the ladle, the length of the casting blank is theoretically cast in each heat, and as can be seen from the schematic diagram 2, the 1 st casting blank in each casting flow in the heat of 1B0002 is divided into 1B0002 casting blanks in each heat, but the 1 st casting blank 3.037m in each casting flow is actually cast by the 2 nd molten steel, so that the potential hazard of damage exists in the steel rail before the 2 nd pouring, and obviously, the steel making processes such as the last ladle of the pouring of the 1 st ladle, the superheat degree of the tundish, the liquid level of the tundish and the like should be firstly examined.
Example 3
The number n= 3,1D0001, 1D0002 and 1D0003 of continuous casting furnaces are the number information of the 1 st furnace, the 2 nd furnace and the 3 rd furnace of the casting times, the continuous casting machine is 5 machine 5 flows, x=5, the 3 rd casting flows are cast to the 3 rd furnace and the 3 rd casting blank is stopped after casting, and W 1 ＝135.50t，W 2 ＝130.45t，W 3 = 145.26t, the residual steel weight W of the tundish after stopping casting for times 0 ＝15t，W LD ＝411.21t，W＝396.21t。
Calculating the total length of the whole casting blank according to the continuous casting cutting result, wherein the 1 st casting flow dummy ingot blank is 6.5m, and the tail blank is 6.3m; 6.5m of the 2 nd cast flow dummy ingot blank and 6.5m of the tail blank; 6.5m of the 3 rd cast flow dummy ingot blank and 7.5m of the tail blank; 6.5m of 4 th cast flow dummy ingot blank and 6.6m of tail blank; the 5 th cast strand dummy ingot 6.5m, tail billet 7.2m, and the data are shown in table 9:
TABLE 9
| Continuous casting flow | L1 | L2 | L3 | L4 | L5 | L total |
| Length/m of casting blank | 98.730 | 98.930 | 86.710 | 99.030 | 99.630 | 483.030 |
The relative meter weight of the current casting MG= 0.8203t/m,
calculating the length JZ of theoretical castable blank of molten steel in each furnace i ，JZ i ＝W i MG, JZ when i=n n ＝(W n -W 0 ) MG, as shown in table 10:
table 10
Calculating the length FP of casting blanks divided by each furnace in the actual casting process according to continuous casting cutting performance i Calculating the actual pouring position KJ of the ladle in the casting process i As shown in table 11:
TABLE 11
i＝2，CZ i-2 ＝0，CZ 1 ＝JZ 1 -FP 1 +CZ 0 ＝165.184-164.700＝0.484m，
When CZ i-1 >0, the casting blank cast by the molten steel in the 1 st furnace is reserved in the 2 nd furnace, so that the ladle casting position KJ of the 2 nd furnace 2 Moving the tail end of the casting blank divided by the 1 st furnace to the right by 0.097m;
i＝n＝3,CZ 2 ＝JZ 2 -FP 2 +CZ 1 ＝159.027-132.200+0.484＝27.311m，
when CZ i-1 >0, the casting blank cast by the molten steel in the 2 nd furnace is reserved in the 3 rd furnace, so that the 3 rd furnace ladle casting position KJ 3 The tail end of the casting blank divided by the 2 nd furnace moves to the right for 5.462m;
rail damage information 1D0003-301 is 1D0003 furnace 3 rd cast stream 1 st branch, and specific rail damage information is shown in Table 12:
table 12
| Rail damage information | RD/m | QT/m | Rail specification | RR | DS/m |
| 1D0003-301 | 25 | 1.5 | 50Kg/m | 16.2 | 1.636 |
In combination with the actual pouring position of the ladle, the length of the casting blank is theoretically cast in each heat, and the 1 st casting blank of each casting flow in the heat of 1D0003 is divided into 1D0003 casting blanks in each heat, but the 1 st casting blank 5.462m of each casting flow is actually cast by 3 rd furnace molten steel, so that the steel rail has a flaw point before the 3 rd furnace is poured, and obviously, the steel making processes such as the last ladle steel residue, the middle ladle superheat degree, the middle ladle liquid level and the like of the 2 nd ladle pouring should be firstly examined.
According to the invention, the actual pouring position of each ladle in the pouring process can be accurately divided, the actual condition of each casting billet can be mastered, the steelmaking links needing to be inquired can be rapidly and accurately locked aiming at partial damaged rails, and the working efficiency can be greatly improved.
Claims (5)
1. A method for calculating a ladle pouring position in a closed loop manner, which is characterized by comprising the following steps:
(1) Dividing the total weight of molten steel of a cast blank by the total length of all cast blanks cast by each stream to obtain the relative meter weight belonging to the casting time;
(2) Dividing the weight of molten steel of casting blanks cast by each furnace for casting times by the relative meter weight to obtain the length of the casting blanks cast by each furnace in the molten steel theory;
(3) Calculating according to the length of a casting blank theoretically cast by each furnace of molten steel and the length of each furnace of casting blank practically divided by continuous casting during production, and determining the actual casting position of each furnace ladle; when the length of the casting blank which is cast by the molten steel theory is larger than that of each furnace of casting blank which is actually divided by continuous casting, the actual casting position of the ladle is on the right side of the tail end of the casting blank which is actually divided by continuous casting; when the length of the casting blank subjected to molten steel theoretical casting is smaller than that of each furnace of casting blank actually divided by continuous casting, the actual pouring position of the ladle is at the left side of the tail end of the casting blank actually divided by continuous casting; the length of each furnace casting blank actually divided during production comprises the length of each casting flow dummy ingot blank and the length of each casting flow tail blank after casting stop;
(4) Dividing the sawing length of the cooling bed by the rolling compression ratio according to the flaw position of the steel rail and reducing the relative position of the flaw point on the casting blank;
(5) According to the actual casting position of each heat ladle, the relative position of the flaw point on the casting blank is accurately divided again, heat number information of the flaw point is accurately divided again, the corresponding heat steelmaking smelting process is searched according to the real information of the flaw rail, and the flaw reason of the steel rail is analyzed.
2. The method for calculating the ladle pouring position in a closed loop according to claim 1, wherein: in the step (1), when the ladle reaches the continuous casting rotary table, the weighing system can know the initial weight of the ladle and the leaving weight of the ladle, and after stopping casting, the tundish weighing system can know the residual weight of the tundish, wherein the difference between the total weight of the ladle casting steel and the residual weight of the tundish is the total weight of molten steel for casting a casting blank.
3. The method for calculating the ladle pouring position in a closed loop according to claim 1, wherein: in the step (1), the total length of all casting blanks cast by each flow comprises the length of a dummy ingot blank and the length of a tail blank of each casting flow.
4. The method for calculating the ladle pouring position in a closed loop according to claim 1, wherein: in the step (3), the ladle casting position is calculated only from the 2 nd continuous casting furnace.
5. The method for calculating the ladle pouring position in a closed loop according to claim 1, wherein: in the step (4), the rolling compression ratio is obtained by dividing the cross-sectional area of a casting blank by the cross-sectional area of a steel rail.
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| JP2004276050A (en) * | 2003-03-13 | 2004-10-07 | Sumitomo Metal Ind Ltd | Method for starting continuous casting |
| CN103878334B (en) * | 2012-12-21 | 2016-04-27 | 宝山钢铁股份有限公司 | A kind of plug-in type conticaster automatic casting control method |
| CN105268936B (en) * | 2014-07-16 | 2017-10-20 | 上海梅山钢铁股份有限公司 | Wrap to mix in continuous casting and pour control method |
| CN106011388B (en) * | 2016-07-13 | 2018-03-09 | 河北钢铁股份有限公司邯郸分公司 | It is a kind of to improve the smelting process for pouring time the first stove heavy rail fault detection qualification rate |
| CN112207245B (en) * | 2020-09-27 | 2022-03-15 | 安徽工业大学 | Method for matching high-frequency and low-frequency data with cut casting blank number in continuous casting process |
| CN112417217B (en) * | 2020-10-30 | 2023-08-11 | 北京科技大学 | Continuous casting data space-time matching method based on heat tracking and casting flow tracking |
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