CN105149534A - Method and device for controlling cooling strength of double-roll thin-strip continuous casting roll - Google Patents
Method and device for controlling cooling strength of double-roll thin-strip continuous casting roll Download PDFInfo
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- CN105149534A CN105149534A CN201510641053.6A CN201510641053A CN105149534A CN 105149534 A CN105149534 A CN 105149534A CN 201510641053 A CN201510641053 A CN 201510641053A CN 105149534 A CN105149534 A CN 105149534A
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Abstract
The invention provides a method and a device for controlling the cooling strength of a double-roll thin-strip continuous casting roll. Each casting roll is provided with one or a plurality of water inlets and one or a plurality of water outlets corresponding to the water inlets, so that one or a plurality of independent cooling water channels are formed in the casting roll. Water outlets of the cooling water channels are provided with flow regulating valves. A cooling controller calculates heat Qn brought away in unit time by cooling water in each cooling water channel in each casting roll according to the cooling water temperature t0 of the water inlet of each cooling water channel of the casting roll and the flow qn, temperature tn and pressure pn of the cooling water of the water outlet of each cooling water channel, and the heat Qn brought away in unit time by the cooling water in the cooling water channels in each casting roll is identical. The water flow qn of the cooling water channels is regulated according to the difference between total heat sigma Qn and a target value Q of the heat brought away in unit time by the cooling water in the cooling water channels of each casting roll. Finally, the heat brought away in unit time by the cooling water in each casting roll is regulated to be identical to the target heat value Q.
Description
Technical field
The present invention relates to twin-roll thin strip continuous casting technique, particularly a kind of method controlling double-roll thin-belt continuous casting roller intensity of cooling.
Background technology
Twin-roll thin strip continuous casting technology typical production process is: the molten steel of melting equably cloth stream at two opposite direction rotatings, molten bath is formed in the space that the baffle plate leading to water-cooled casting roll and ceramic material surrounds, molten steel solidifies at roll surface, and forms Thin Strip Steel between two casting rolls.
As described in typical process, casting roll generally has water inlet and the delivery port of cooling water, cooling water passes in roller by water inlet, and enter and be arranged in below roll surface along the cooling elongated hole that is evenly arranged of roll surface circumference, cooling water takes away the heat that molten steel discharges when roll surface solidifies while flowing through these cooling elongated holes, temperature increases, and is discharged to storage cistern, reuses after cooling eventually through the delivery port in casting roll.
Chinese patent CN102149491A provides a kind of method controlling casting roll internal cooling water, in the method, by detecting the Cast Strip thickness profile in roll gap downstream, controlled the rotary speed of casting roll from the signal of telecommunication that sensor receives by control system, and change and carry out via water stream channel the water flow temperature that circulates, the roller hat of casting roll during controlling casting manipulations.
Patent WO03055623A1 provides a kind of method, be multiplied by the water yield by the casting roll water-in and water-out temperature difference measured and obtain heat that molten steel solidification discharges (its think equal the heat that cooling water takes away), and then extrapolated the temperature of roll surface by computer system in conjunction with other intrinsic Solidification Parameters.Although the heat that this method also adopts water temperature difference and water yield cheek cooling water to take away, it has been used for anti-push roller surface temperature.
Summary of the invention
The object of the present invention is to provide a kind of method and the device that control double-roll thin-belt continuous casting roller intensity of cooling, there is good cooling effect, directly can control the intensity of cooling of every root casting roll, and the intensity of cooling of each cooling-water duct in casting roll can be regulated separately, and then ensureing the cooling uniformity of two casting rolls, control method is rapid, means are reliable; And water system is simple and reliable, target flow can be reached rapidly; And by finely tuning the flow of each delivery port, can be that control system reaches stable state rapidly.
For reaching described object, technical scheme of the present invention is:
A kind of double-roll thin-belt continuous casting roller, comprise roller core and roller shell, roller shell adopts hot jacket connecting mode or mechanical attachment form and roller core to combine, and wherein, roller shell thickness is 55 ~ 100mm, elongated hole that is some and casting roll axis being parallel is evenly offered along casting roll circumference in the position being positioned at roll surface 10 ~ 55mm in roller shell, and those elongated holes are divided into upper and lower two-layer layout, and elongated hole end is by plug shutoff, wherein, the upper strata elongated hole near roll surface is cooling-water duct;
Axially offer one or more water flowing long water hole and radial direction in end, roller core two ends and offer the entery and delivery port that one or more and long water hole is communicated with, the outer wall of roller core two ends and roller shell adapter section is arranged symmetrically with entering of one or more annular, water outlet water leg, a water inlet of roller core one end is through long water hole and connect branch road connection water inlet water leg, water inlet water leg is communicated with roller shell upper strata elongated hole by the long inclined hole be evenly arranged in roller shell above it, the other end that upper strata elongated hole is positioned at roller shell is communicated with lower floor's elongated hole by short inclined hole, lower floor's elongated hole is communicated with the water outlet water leg of the other end of roller core by the straight hole be evenly arranged in roller shell, and the connection branch road be communicated with in the other end of roller core and long water hole, the delivery port of the roller core other end is connected by long water hole.
Further, the delivery port of each cooling-water duct of casting roll is provided with the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct, and can detect and export discharge q
nsignal, is also provided with detected temperatures t simultaneously
nwith hydraulic pressure p
nelectrical signal detection device and corresponding signal input, output device.
Any one cooling-water duct of casting roll inside all includes a water inlet and a delivery port, wherein, if the water inlet of the inner same cooling-water duct of casting roll and delivery port can be arranged in the two ends of casting roll respectively, also can be arranged in same one end of casting roll.The elongated hole corresponding to any two cooling-water ducts in same casting roll is spaced apart in casting roll circumference, and cooling water flow in adjacent elongated hole is on the contrary, and does not come round mutually.
Again, roller shell two ends are circumferentially with the annular protrusion for sealing with side seal board along roll surface, and ledge width is 10-20mm, is highly 2-5mm.
Control a method for double-roll thin-belt continuous casting roller intensity of cooling, one or more delivery ports that every root casting roll has one or more water inlet and corresponds, thus form one or more independent cooling-water duct in casting roll inside.Establish flow control valve at cooling-water duct delivery port, regulate separately the cooling water flow of cooling-water duct; The water pump of adjustable pressure and flow is adopted to provide cooling water to two casting rolls.
A kind of method controlling double-roll thin-belt continuous casting roller intensity of cooling of the present invention, every root casting roll has one or more water inlet and the one or more delivery port corresponded and is positioned at along roller excircle to the some elongated holes be evenly arranged below roll surface, correspondingly forms one or more independent cooling-water duct in every root casting roll inside; At the delivery port of each cooling-water duct, the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct is installed; Adopt the water pump of one or more regulating flow quantity to provide cooling water by same pipeline to two casting rolls, meanwhile, cooling controller monitors the inflow temperature t of each cooling-water duct
0, water flow q
n, leaving water temperature t
n, discharge pressure p
n, and calculate the heat Q that in every root casting roll, in each cooling-water duct, cooling water is taken away within the unit interval thus
n, by the discharge of the corresponding cooling-water duct of Flow-rate adjustment valve regulation, realize the heat that the cooling water in every root casting roll in each cooling-water duct takes away within the unit interval identical; Then will according to total amount of heat ∑ Q
nwith cooling water in single casting roll cooling-water duct within the unit interval take away the deviation of the desired value Q of heat, regulate the discharge q of cooling-water duct
n, finally realize the heat that the cooling water in every root casting roll takes away within the unit interval identical with target calorie value.
Wherein, in casting cycle, two casting rolls inner the target heat Q that takes away within the unit interval of the cooling water that leads to be a fluctuation range, its heat Q that should take away round the cooling water of casting roll in theory calculated according to casting process
0fluctuation, that is:
Q∈[Q
0±ΔQ]
Wherein: Δ Q is the deviation allowed, 2 ~ 3%.
The delivery port of each cooling-water duct of casting roll is provided with the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct, and can detect and export water flow q
nsignal, is also provided with simultaneously and detects coolant-temperature gage t
nwith discharge pressure p
nelectrical signal detection device and corresponding signal input, output device.Adopt the water pump of regulating flow quantity to provide cooling water to two casting rolls, first, cooling controller controls water pump and reaches its goal pressure P simultaneously, meanwhile, and the inflow temperature t of each cooling-water duct in the every root roller of cooling controller monitoring casting
0, discharge q
n, leaving water temperature t
n, discharge pressure p
n, the cooling water calculated in each cooling-water duct takes away heat Q within the unit interval
n, by the discharge of the corresponding cooling-water duct of Flow-rate adjustment valve regulation, realize the heat that the cooling water in single casting roll in each cooling-water duct takes away within the unit interval identical, that is:
Q
1=Q
2=Q
3=... .=Q
n, wherein, n=1,2,3......
If the total amount of heat ∑ Q that single casting roll cooling water is taken away within the unit interval
nhave gap with target heat Q, then, cooling controller, by the output pressure P by slightly changing water pump, changing water supply flow, and then making the cooling water flow q of each cooling-water duct
nchange, the total amount of heat finally making single casting roll inner cooling water take away reaches target heat Q, that is:
Q=∑ Q
n, wherein, n=1,2,3.......
Wherein, two casting rolls can be identical or not identical by the heat that cooling water is taken away within the unit interval.
Each cooling-water duct inner cooling water takes away heat Q
n, casting roll inner the target heat Q that takes away of the cooling water that leads to, and the cooling water flow heat Q that should take away in theory
0under being stable casting operation situation, the value of accumulation in same time.In casting cycle, cooling controller go round and begin again circulation adjustment cooling-water duct flow to meet the casting roll intensity of cooling control method described in said method.
The difference of the present invention compared with existing is:
Chinese patent CN102149491A provides a kind of method controlling casting roll internal cooling water, in the method, by detecting the Cast Strip thickness profile in roll gap downstream, controlled the rotary speed of casting roll from the signal of telecommunication that sensor receives by control system, and change and carry out via water stream channel the water flow temperature that circulates, the roller hat of casting roll during controlling casting manipulations.Compared with the present invention, this control system is supplied to the cooling water of casting roll from the turnover of casting roll side, and by making two casting roll water inlet directions contrary, the non-homogeneous expansion of offsetting owing to causing due to water temperature height in casting roll is even.
And the present invention all has cooling water into and out of passage from casting roll both sides, avoid every root casting roll non-homogeneous expansion even.And the present invention does not relate to the scheme changing inflow temperature.
Patent WO03055623A1 provides a kind of method, be multiplied by the water yield by the casting roll water-in and water-out temperature difference measured and obtain heat that molten steel solidification discharges (its think equal the heat that cooling water takes away), and then extrapolated the temperature of roll surface by computer system in conjunction with other intrinsic Solidification Parameters.Although the heat that this method also adopts water temperature difference and water yield cheek cooling water to take away, it has been used for anti-push roller surface temperature.
The present invention then calculates the heat that unit interval inner cooling water is taken away, and then adjusts the intensity of cooling of casting roll according to its difference, improves casting roll cooling uniformity.
Advantage of the present invention:
1, crystallization roll internal cooling channel of the present invention is evenly reasonable, has good cooling effect.
2, utilize this method directly can control the intensity of cooling of every root casting roll, and can regulate separately the intensity of cooling of each cooling-water duct in casting roll, and then ensure the cooling uniformity of two casting rolls, control method is rapid, means are reliable.
3, water system is simple and reliable, can reach target flow rapidly.And by finely tuning the flow of each delivery port, can be that control system reaches stable state rapidly.
Accompanying drawing explanation
Fig. 1 is typical twin-roll thin strip continuous casting process schematic representation;
Fig. 2 is the sectional view of casting roll of the present invention;
Fig. 3 is the E-E sectional view (casting roll cooling water intake tunnel 1) of Fig. 2;
Fig. 4 is the F-F sectional view (casting roll cooling water intake tunnel 2) of Fig. 2;
Fig. 5 is casting roll cooling water system schematic of the present invention;
Fig. 6 is casting roll cooling water control schematic diagram of the present invention;
Fig. 7 is casting roll intensity of cooling control flow chart of the present invention.
Detailed description of the invention
See Fig. 1, it is depicted as twin-roll thin strip continuous casting technique, molten steel in tundish 5 to be connected with two inside by uniform cloth stream by the mouth of a river 6 and distributor 7 in the space that the roll surface of the casting roll 1a of cooling water, 1b surrounds with ceramic wafer 2a, 2b and to form molten bath, along with casting roll opposite direction rotating, molten steel is solidified at casting roller surface and and then is formed thin Cast Strip 3 at two casting roll minimum clearance places.
As shown in Fig. 2 ~ Fig. 6, a kind of double-roll thin-belt continuous casting roller of the present invention, comprise roller core 18 and roller shell 16, roller shell adopts hot jacket connecting mode or mechanical attachment form and roller core to combine, wherein, roller shell 16 thickness is 55 ~ 100mm, elongated hole 11,12 that is some and casting roll axis being parallel is evenly offered along casting roll circumference in the position being positioned at roll surface 10 ~ 55mm in roller shell 16, and, those elongated holes are divided into upper and lower two-layer layout, elongated hole end is by plug shutoff, and wherein, the upper strata elongated hole 11 near roll surface is cooling-water duct;
Axially offer one or more water flowing long water hole 72 and radial direction in end, roller core 18 two ends and offer the entery and delivery port 15 that one or more and long water hole 72 is communicated with, the outer wall of roller core 18 two ends and roller shell 16 adapter section is arranged symmetrically with entering of one or more annular, water outlet water leg 64, 62, a water inlet 15 of roller core 18 one end is through long water hole 72 and connect branch road 71 connection water inlet water leg 64, water inlet water leg 64 is communicated with roller shell upper strata elongated hole 11 by the long inclined hole 26 be evenly arranged in roller shell above it, the other end that upper strata elongated hole 11 is positioned at roller shell 16 is communicated with lower floor's elongated hole 12 by short inclined hole 20, lower floor's elongated hole 12 is communicated with the water outlet water leg 62 of the other end of roller core by the straight hole 29 be evenly arranged in roller shell, and the connection branch road 69 be communicated with in the other end of roller core and long water hole 67, the delivery port 14 of roller core 18 other end is connected by long water hole 67.
Casting roll of the present invention comprises roller core 18 and roller shell 16, roller core and roller shell is all processed porose, for cooling water turnover, thus defines two independent cooling-water ducts therein.
For casting roll 1a, casting roll internal structure and Inlet and outlet water control program thereof are described below.
In cooling-water duct 1, be circumferentially symmetrily processed with two cooling water intakes 15 in roller core end, OS side, correspondingly, be processed with two long water holes 72 in roller core inside.Cooling water enters in roller from two water inlets 15 simultaneously, through two long water holes 72 and its separately two branch roads 71 enter in same water inlet water leg 64, cooling water is uniformly allocated to by the long inclined hole 26 on roller shell and is arranged in below roll surface 30mm along some upper stratas elongated hole 11 that roll surface circumference is evenly arranged, and axially flow through roll surface along casting roll, enter the short inclined hole 20 of the roller shell other end, enter in water outlet water leg 62 through lower floor's elongated hole 12 and straight hole 13, then, in water leg 62, by 4 branch roads 69, cooling water is pooled to two long water holes 67, and then discharge at the roller core delivery port 14 of the WS side of casting roll.Wherein, the end of upper strata elongated hole 11, lower floor's elongated hole 12 and short inclined hole adopts screw plug 17 to seal.
Two delivery ports 14 symmetrical machining on roller core 18, is connected with pond by a drainpipe, and this drainpipe is provided with pressure sensor 34 and temperature sensor 33 and flow control valve 52.
Equally, in cooling-water duct 2, be circumferentially symmetrily processed with two cooling water intakes 24 in roller core end, WS side, correspondingly, be processed with two long water holes 65 in roller core inside.In work, cooling water enters in roller from two water inlets 24 simultaneously, through two long water holes 65 and its separately two branch roads 68 enter in same water inlet water leg 61, cooling water is uniformly allocated to by the long inclined hole 19 on roller shell and is arranged in below roll surface 30mm along some upper stratas elongated hole 21 that roll surface circumference is evenly arranged, and axially flow through roll surface along casting roll, enter in the short inclined hole 27 of the roller shell other end, water outlet water leg 63 is entered through lower floor's elongated hole 28 and straight hole 29, in water leg 63, by 4 branch roads 70, cooling water is pooled to two long water holes 66, and then discharge at the roller core delivery port 25 of the OS side of casting roll.Wherein, the end of upper strata elongated hole 21, lower floor's elongated hole 28 and short inclined hole 27 adopts screw plug 17 to seal.
Two delivery ports 25 symmetrical machining on roller core 18, is connected with pond by a drainpipe, and this drainpipe is provided with pressure sensor 37 and temperature sensor 38 and flow control valve 51.
In addition, in Fig. 5,46,55 is water inlet; 45,56 is delivery port; 32,35,39 is pressure sensor, and 31,36,40 is temperature sensor.
Again, roller shell two ends are circumferentially with the annular protrusion for sealing with side seal board along roll surface, and ledge width is 10-20mm, is highly 2-5mm.
As shown in Figure 3, any two upper strata elongated holes 11 and 21 are spaced apart in casting roll circumference, do not come round mutually, and cooling water flow in adjacent upper elongated hole 11 and 21 is on the contrary.
See Fig. 5 ~ Fig. 7, a kind of method controlling double-roll thin-belt continuous casting roller intensity of cooling of the present invention, the water pump 30 of a regulating flow quantity provides cooling water to the water inlet of two casting roll 1a, 1b simultaneously, first, cooling controller 8 controls water pump 30 by water pump driver element 9 and reaches its goal pressure P (this goal pressure, from cold state experimental results, can make the cooling water flow of two casting rolls close to target flow fluctuation range).Meanwhile, each cooling-water duct water flow value q that delivery port flow control valve 51,52,53,54 feedback that cooling controller 8 monitors each root casting roll is come
1, q
2signal, inflow temperature t
0, leaving water temperature t
1, t
2calculate every root casting roll inner cooling water passage accumulative institute in 1 minute and take away heat Q
n, get its average, that is:
Next step, according to Q
1, Q
2with
between difference, cooling controller 8 sends corresponding flow deviation signal delta K
1, Δ K
2to flow control valve 51,52, the latter regulates the discharge of corresponding cooling-water duct (there is thermal excursion).Cooling controller 8 constantly repeats above-mentioned control method according to feedback result, and the heat finally realizing taking away in each cooling-water duct in this root casting roll is identical.That is:
Q
1＝Q
2
In casting cycle, two casting rolls inner the target heat Q that took away in one minute of the cooling water that leads to be pre-set according to casting process demand, and be solidificated in cooling controller 8, in this case, casting roll inner the target heat Q that takes away of the cooling water that leads to be a fluctuation range, its heat Q that should take away round the cooling water flow in theory calculated according to casting process
0fluctuation, that is:
Q∈[Q
0±ΔQ]，
Further, if the heat that single casting roll cooling water is taken away does not reach target heat Q, then, cooling controller 8 sends pressure variations Δ P feed pump driver element 9 and controls water pump 30 and change its output pressure P, and and then changes each cooling-water duct water flow value q
1, q
2, meanwhile, constantly according to each cooling-water duct water flow value q
1, q
2signal, inflow temperature t
0, leaving water temperature t
1, t
2calculate every root casting roll inner cooling water passage accumulative institute in 1 minute take away heat sum ∑ Q etc. parameter
n=Q
1+ Q
2, compare with target heat Q.If the two exists deviation, then again revise output pressure, this control method of iterative cycles like this, until it is identical with desired value to realize the heat that in single casting roll, cooling water is taken away, that is:
Q＝Q
1+Q
2
Said method can make every root casting roll internal cooling uniformity, and the intensity of cooling controlled separately in each cooling-water duct of each root casting roll is consistent.
Wherein, two casting rolls can be identical or not identical by the heat that cooling water is taken away within the unit interval.
Claims (12)
1. a double-roll thin-belt continuous casting roller, comprises roller core and roller shell, and roller shell adopts hot jacket connecting mode or mechanical attachment form and roller core to combine; It is characterized in that:
Roller shell thickness is 55 ~ 100mm, and elongated hole that is some and casting roll axis being parallel is evenly offered along casting roll circumference in the position being positioned at roll surface 10 ~ 55mm in roller shell, and, those elongated holes are divided into upper and lower two-layer layout, elongated hole end is by plug shutoff, and wherein, the upper strata elongated hole near roll surface is cooling-water duct;
Axially offer one or more water flowing long water hole and radial direction in end, roller core two ends and offer the entery and delivery port that one or more and long water hole is communicated with;
The outer wall of roller core two ends and roller shell adapter section is arranged symmetrically with entering of one or more annular, water outlet water leg, a water inlet of roller core one end is through long water hole and connect branch road connection water inlet water leg, water inlet water leg is communicated with roller shell upper strata elongated hole by the long inclined hole be evenly arranged in roller shell above it, the other end that upper strata elongated hole is positioned at roller shell is communicated with lower floor's elongated hole by short inclined hole, lower floor's elongated hole is communicated with the water outlet water leg of the other end of roller core by the straight hole be evenly arranged in roller shell, and the connection branch road be communicated with in the other end of roller core and long water hole, the delivery port of the roller core other end is connected by long water hole.
2. double-roll thin-belt continuous casting roller as claimed in claim 1, it is characterized in that, the delivery port of each cooling-water duct of casting roll is provided with the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct, and can detect and export discharge q
nsignal, is also provided with detected temperatures t simultaneously
nwith hydraulic pressure p
nelectrical signal detection device and corresponding signal input, output device.
3. double-roll thin-belt continuous casting roller as claimed in claim 1, it is characterized in that, any one cooling-water duct of casting roll inside all includes a water inlet and a delivery port, wherein, if the water inlet of the inner same cooling-water duct of casting roll and delivery port can be arranged in the two ends of casting roll respectively, same one end of casting roll also can be arranged in.
4. double-roll thin-belt continuous casting roller according to claim 1, is characterized in that, the elongated hole corresponding to any two cooling-water ducts in same casting roll is spaced apart in casting roll circumference, and cooling water flow in adjacent elongated hole is on the contrary, and does not come round mutually.
5. double-roll thin-belt continuous casting roller as claimed in claim 1, is characterized in that, described roller shell two ends are circumferentially with the annular protrusion for sealing with side seal board along roll surface, and ledge width is 10-20mm, is highly 2-5mm.
6. one kind controls the method for double-roll thin-belt continuous casting roller intensity of cooling, every root casting roll has one or more water inlet and the one or more delivery port corresponded and is positioned at along roller excircle to the some elongated holes be evenly arranged below roll surface, correspondingly forms one or more independent cooling-water duct in every root casting roll inside; At the delivery port of each cooling-water duct, the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct is installed; Adopt the water pump of one or more regulating flow quantity to provide cooling water by same pipeline to two casting rolls, meanwhile, cooling controller monitors the inflow temperature t of each cooling-water duct
0, water flow q
n, leaving water temperature t
n, discharge pressure p
n, and calculate the heat Q that in every root casting roll, in each cooling-water duct, cooling water is taken away within the unit interval thus
n, by the discharge of the corresponding cooling-water duct of Flow-rate adjustment valve regulation, realize the heat that the cooling water in every root casting roll in each cooling-water duct takes away within the unit interval identical; Then will according to total amount of heat ∑ Q
nwith cooling water in single casting roll cooling-water duct within the unit interval take away the deviation of the desired value Q of heat, regulate the discharge q of cooling-water duct
n, finally realize the heat that the cooling water in every root casting roll takes away within the unit interval identical with target calorie value.
7. the method controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, it is characterized in that, in casting cycle, two casting rolls inner the target heat Q that takes away within the unit interval of the cooling water that leads to be a fluctuation range, its heat Q that should take away round the cooling water of casting roll in theory calculated according to casting process
0fluctuation, that is:
Q∈[Q
0±ΔQ]
Wherein: Δ Q is the deviation allowed, 2 ~ 3%.
8. the method controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, it is characterized in that, the delivery port of each cooling-water duct of casting roll is provided with the flow that flow control valve can regulate separately the cooling water in casting roll cooling-water duct, and can detect and export water flow q
nsignal, is also provided with simultaneously and detects coolant-temperature gage t
nwith discharge pressure p
nelectrical signal detection device and corresponding signal input, output device.
9. the method controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, it is characterized in that, adopt the water pump of regulating flow quantity to provide cooling water to two casting rolls simultaneously, first, cooling controller controls water pump and reaches its goal pressure P, meanwhile, the inflow temperature t of each cooling-water duct in every root roller is cast in cooling controller monitoring
0, discharge q
n, leaving water temperature t
n, discharge pressure p
n, the cooling water calculated in each cooling-water duct takes away heat Q within the unit interval
n, by the discharge of the corresponding cooling-water duct of Flow-rate adjustment valve regulation, realize the heat that the cooling water in single casting roll in each cooling-water duct takes away within the unit interval identical, that is:
Q
1=Q
2=Q
3=... .=Q
n, wherein, n=1,2,3......
10. the method controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, is characterized in that, if the total amount of heat ∑ Q that single casting roll cooling water is taken away within the unit interval
nhave gap with target heat Q, then, cooling controller, by the output pressure P by slightly changing water pump, changing water supply flow, and then making the cooling water flow q of each cooling-water duct
nchange, the total amount of heat finally making single casting roll inner cooling water take away reaches target heat Q, that is:
Q=∑ Q
n, wherein, n=1,2,3.......
11. methods controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, it is characterized in that, two casting rolls can be identical or not identical by the heat that cooling water is taken away within the unit interval.
12. methods controlling double-roll thin-belt continuous casting roller intensity of cooling as claimed in claim 6, it is characterized in that, each cooling-water duct inner cooling water takes away heat Q
n, casting roll inner the target heat Q that takes away of the cooling water that leads to, and the cooling water flow heat Q that should take away in theory
0under being stable casting operation situation, the value of accumulation in same time.
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|---|---|---|---|
| CN201510641053.6A CN105149534B (en) | 2015-09-30 | 2015-09-30 | A kind of method and device for controlling double-roll thin-belt continuous casting roller intensity of cooling |
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| CN112247086A (en) * | 2020-10-21 | 2021-01-22 | 东北大学 | Working roll device, double-roll thin strip continuous casting equipment and continuous casting production process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621857Y (en) * | 2003-05-29 | 2004-06-30 | 上海宝钢集团公司 | Water cooling crystallizing roller for double-roll thin strip continuous casting |
| CN201855926U (en) * | 2010-06-30 | 2011-06-08 | 宝山钢铁股份有限公司 | Driven roller of continuous casting machine with straight grooves as cooling grooves |
| EP2527061A1 (en) * | 2011-05-27 | 2012-11-28 | Siemens VAI Metals Technologies GmbH | Method for cooling a metallic strand and switching valve for intermittent opening and closing of a volume flow of a coolant medium |
| CN103269813A (en) * | 2010-10-18 | 2013-08-28 | 卡斯特里普公司 | Twin Roll Continuous Caster |
| CN104607606A (en) * | 2015-01-26 | 2015-05-13 | 张家港市广川电子有限公司 | Continuous cast extrusion molding device |
-
2015
- 2015-09-30 CN CN201510641053.6A patent/CN105149534B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2621857Y (en) * | 2003-05-29 | 2004-06-30 | 上海宝钢集团公司 | Water cooling crystallizing roller for double-roll thin strip continuous casting |
| CN201855926U (en) * | 2010-06-30 | 2011-06-08 | 宝山钢铁股份有限公司 | Driven roller of continuous casting machine with straight grooves as cooling grooves |
| CN103269813A (en) * | 2010-10-18 | 2013-08-28 | 卡斯特里普公司 | Twin Roll Continuous Caster |
| EP2527061A1 (en) * | 2011-05-27 | 2012-11-28 | Siemens VAI Metals Technologies GmbH | Method for cooling a metallic strand and switching valve for intermittent opening and closing of a volume flow of a coolant medium |
| CN104607606A (en) * | 2015-01-26 | 2015-05-13 | 张家港市广川电子有限公司 | Continuous cast extrusion molding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247086A (en) * | 2020-10-21 | 2021-01-22 | 东北大学 | Working roll device, double-roll thin strip continuous casting equipment and continuous casting production process |
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