CN209681090U - A kind of three times cooling device of conticaster and its continuous casting billet - Google Patents
A kind of three times cooling device of conticaster and its continuous casting billet Download PDFInfo
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- CN209681090U CN209681090U CN201920458836.4U CN201920458836U CN209681090U CN 209681090 U CN209681090 U CN 209681090U CN 201920458836 U CN201920458836 U CN 201920458836U CN 209681090 U CN209681090 U CN 209681090U
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Abstract
This application discloses a kind of cooling devices three times of continuous casting billet, including the fast quenching case ontology being arranged between the spray system of conticaster track end and steel rolling rail and cooling component, guidance set, positioning component and controller；The cooling component is located at the inside of the fast quenching case ontology, and the guidance set is located at the arrival end of the fast quenching case ontology；The location information that the controller is used to obtain the positioning component controls the cooling component work.The cooling device three times of continuous casting billet provided herein, by to the primary and secondary continuous casting billet after cooling of completion, rapid quenching completion is carried out to cool down three times, reduce the probability that hot charging crack generates, the energy is saved, meanwhile, pass through the setting of positioning component, cooling component and controller, automatic positioning may be implemented and automatic spray function, precision and efficiency improve.Disclosed herein as well is a kind of conticasters of cooling device three times including above-mentioned continuous casting billet.
Description
Technical field
This application involves field of steel metallurgy, more particularly to a kind of cooling device three times of continuous casting billet.In addition, the application
Further relate to a kind of conticaster of cooling device three times including above-mentioned continuous casting billet.
Background technique
In continuous casting billet production process, show that stocking hot charging crack only occurs in stocking table by a large amount of production practices
Face middle position, can be to avoid hot charging crack using continuous casting billet surface rapid cooling direct hot charging technique, while hot sending temperature also can be improved
100-200 DEG C of degree improves continuous casting billet heat utilization ratio.
To improve production efficiency, production cost is reduced, hot charging and hot rolling of continuous casting slab rate need to be stepped up, however, in microalloy
Stocking surface red is frequently occurred in steel production and send crack defect, is concentrated mainly on the steel grade containing Nb, V, Ti such as think gauge Q345B, it is existing
Have in technology, generally can only avoid the defect using modes such as cold charges after reduction charging temperature or the offline slow cooling of continuous casting billet, not only
It will affect rhythm of production, reduce production efficiency, and will cause the waste of high-temperature continuous casting blank amount of heat, increase production cost.
Therefore, the hot charging crack of continuous casting billet how is effectively reduced, while improving production efficiency, is those skilled in the art
The technical issues that need to address at present.
Utility model content
The purpose of the application is to provide a kind of cooling device three times of continuous casting billet, and the cooling device three times of the continuous casting billet can
It is effective to improve hot delivering technology of CC billets directly dress rate, reach the pure γ phase of continuous casting billet or when pure α phase is heat-fed does not generate hot charging crack.This
The another object of application is to provide a kind of conticaster of cooling device three times including above-mentioned continuous casting billet.
To achieve the above object, the application provides the following technical solutions:
A kind of cooling device three times of continuous casting billet, spray system and steel rolling rail including conticaster track end is arranged in
Between fast quenching case ontology and cooling component, guidance set, positioning component and controller；The cooling component is located at described fast
It quenches the inside of case ontology, the guidance set is located at the arrival end of the fast quenching case ontology；The controller is described for obtaining
The location information of positioning component controls the cooling component work.
Preferably, further include flue and fan assembly for steam to be quickly discharged to the fast quenching case ontology.
Preferably, the guidance set includes guide plate and guide support frame, and the guide support frame is bolted to institute
It states on the roller rack of conticaster, the guide plate is installed on the guide support frame according to preset direction.
Preferably, the cooling component includes being located at the upper spray tube for being separately positioned on the continuous casting billet or more two sides under
Spray tube, also, several nozzles are equipped on the upper spray tube and the lower spray tube.
Preferably, shared at least five groups of the cooling component, respectively correspond be mounted on two neighboring conticaster carrying roller it
Between, cooling component described in every group includes at least four row's nozzles, and at least two rows of, every row institute is respectively arranged in the two sides up and down of the continuous casting billet
Stating nozzle includes at least five nozzles.
Preferably, the irrigation pressure of the upper spray tube and lower spray tube is 0.4-0.6MPa, spray time≤150s,
The amount of water sprayed of the upper spray tube is 40-80m3/ h, the amount of water sprayed of the lower spray tube are 100-140m3/h。
Preferably, the positioning component includes photoelectric sensor and is located at the fast quenching for hanging the photoelectric sensor
The chain of the upside of case body interior, the controller are used to detect the margin location of the continuous casting billet in the photoelectric sensor
It postpones, judges whether the continuous casting billet reaches the middle part of the fast quenching case ontology according to the movement speed of the continuous casting billet, and
The continuous casting billet controls the cooling component afterwards in place and opens work.
It preferably, further include the outlet end for being mounted on the fast quenching case ontology, for detecting table after the quenching of the continuous casting billet
The temperature sounder of face temperature, the controller are also used to the difference quenched between rear surface temperature and pre-set target temperature according to
The cooling water inflow of next continuous casting billet is adjusted in value.
Preferably, the pre-set target temperature is 550 DEG C, and the controller often exceeds institute according to the rear surface temperature of quenching
It states 10 DEG C of pre-set target temperature and just increases compensation 4-6m3The cooling component is adjusted in the mode of the amount of water sprayed of/h.
The application also provides a kind of conticaster, the cooling device three times including continuous casting billet described in above-mentioned any one.
The cooling device three times of continuous casting billet provided herein, the spray system including conticaster track end is arranged in
Fast quenching case ontology and cooling component, guidance set, positioning component and controller between steel rolling rail；The cooling component
Positioned at the inside of the fast quenching case ontology, the guidance set is located at the arrival end of the fast quenching case ontology；The controller is used
The cooling component work is controlled in the location information for obtaining the positioning component.Continuous casting billet provided herein it is cold three times
But device is cooled down three times by primary and secondary continuous casting billet after cooling is completed, carrying out rapid quenching completion, reduces red send and split
The probability that line generates saves the energy, meanwhile, by the setting of positioning component, cooling component and controller, may be implemented automatic
Positioning and automatic spray function, precision and efficiency improve.
It in a preferred embodiment, further include the outlet end for being mounted on the fast quenching case ontology, described for detecting
The temperature sounder of the rear surface temperature of quenching of continuous casting billet, the controller are also used to quench according to rear surface temperature and default mesh
The cooling water inflow of next continuous casting billet is adjusted in difference between mark temperature.Above-mentioned setting passes through setting for temperature sounder
It sets, realizes the rear surface temperature value of quenching according to the continuous casting billet actually measured, adjust the upper and lower surfaces of next continuous casting billet in real time
Water spray, realization continuously adjust control, improve cooling efficiency and precision.
Conticaster provided herein is equipped with the cooling device three times of above-mentioned continuous casting billet, three times due to the continuous casting billet
Cooling device has above-mentioned technique effect, and therefore, the conticaster of the cooling device three times equipped with the continuous casting billet should also be as with phase
The technical effect answered.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of specific embodiment of cooling device three times of continuous casting billet provided herein；
Fig. 2 is non-rapid cooling continuous casting billet Tissue distribution figure；
Fig. 3 is continuous casting billet Tissue distribution figure after rapid cooling；
Fig. 4 is different hot-mounting process continuous casting billet heating process curves；
Wherein: 1: flue and fan assembly；2: fast quenching case ontology；3: upper spray tube；4: guidance set；5: positioning component；
6: temperature sounder；7: lower spray tube.
Specific embodiment
The core of the application is to provide a kind of cooling device three times of continuous casting billet, and the cooling device three times of the continuous casting billet can
It is effective to improve hot delivering technology of CC billets directly dress rate, reach the pure γ phase of continuous casting billet or when pure α phase is heat-fed does not generate hot charging crack.This
Another core of application is to provide a kind of conticaster of cooling device three times including above-mentioned continuous casting billet.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Please refer to figs. 1 to 4, and Fig. 1 is a kind of specific embodiment party of cooling device three times of continuous casting billet provided herein
The structural schematic diagram of formula；Fig. 2 is non-rapid cooling continuous casting billet Tissue distribution figure；Fig. 3 is continuous casting billet Tissue distribution figure after rapid cooling；Fig. 4 is
Different hot-mounting process continuous casting billet heating process curves.
In this embodiment, the cooling device three times of continuous casting billet, i.e. third time cooling device, including fast quenching case ontology 2,
Cooling component, guidance set 4, positioning component 5 and controller, wherein the spray of conticaster track end is arranged in fast quenching case ontology 2
Number between system and steel rolling rail, i.e., fast quenching case ontology 2 is arranged after secondary fire cuts machine and jetting device for making number, before roller bed.
Cooling component is located at the inside of fast quenching case ontology 2, and guidance set 4 is located at the arrival end of fast quenching case ontology 2；Controller
Location information for obtaining positioning component 5 controls cooling component work, specifically, positioning component 5 " has positioned continuous casting billet
Finish " signal feed back to fast quenching cooler bin control system controller, the controller of fast quenching case ontology 2 issues " starting to spray "
Instruction is sprayed water after cooling component receives " starting to spray " instruction to the surface of continuous casting billet, realizes continuous casting billet upper and lower surfaces
Automatic spray.
The cooling device three times of continuous casting billet provided herein, by the primary and secondary continuous casting after cooling of completion
Base carries out rapid quenching completion and cools down three times, reduces the probability that hot charging crack generates, and saves the energy, meanwhile, pass through positioning component
5, the setting of cooling component and controller, may be implemented automatic positioning and automatic spray function, precision and efficiency improve.
It further include the outlet end for being mounted on fast quenching case ontology 2, for detecting continuous casting on the basis of the respective embodiments described above
The temperature sounder 6 of the rear surface temperature of quenching of base, controller are also used to basis and quench between rear surface temperature and pre-set target temperature
Difference the cooling water inflow of next continuous casting billet is adjusted.Above-mentioned setting realizes root by the setting of temperature sounder 6
The rear surface temperature value of quenching for the continuous casting billet that factually border is measured, adjusts the water spray of the upper and lower surfaces of next continuous casting billet in real time,
Realization continuously adjusts control, improves cooling efficiency and precision.
What needs to be explained here is that fast quenching case ontology 2 is preferably provided in entry and exit for detecting continuous casting billet surface temperature
The temperature sounder of degree measures branch continuous casting billet temperature drop situation in fast quenching case ontology 2, is received by the data to cooling parameter
Collection, the temperature of the main entrance continuous casting billet for collecting fast quenching case ontology 2, the data such as time, water are irregular according to these data
Row big data analysis close to cooling effect, for example in certain cooling time, under certain cooling water inflow, the temperature drop of continuous casting billet is more
It is few, water automatically adjusting parameter is optimized, to reach cooling high-efficiency, and the cooling ginseng as first continuous casting billet
Number.
It is equal in the two sides up and down that the outlet end of fast quenching case ontology 2 is located at continuous casting billet on the basis of the respective embodiments described above
Equipped with temperature sounder 6, after being detected respectively to the temperature of the upper and lower surface of continuous casting billet, it will test result and be sent to control
Device, controller can control the amount of water sprayed of spray tube 3 and lower spray tube 7 respectively according to the testing result of each temperature sounder 6.
Specifically, pre-set target temperature is 550 DEG C, controller often exceeds pre-set target temperature 10 according to rear surface temperature of quenching
DEG C just increase compensation 4-6m3The mode of the amount of water sprayed of/h, preferably 5m3/ h, is adjusted cooling component.Preferably, according to even
Slab exit surface temperature carries out runoff investigation to lower branch continuous casting billet, according to every 10 DEG C of compensation 5m3/ h is adjusted.
It further include flue and fan assembly 1 on the basis of the respective embodiments described above, flue and fan assembly 1 include wind
Machine and flue, flue are used to accelerate the flowing of steam for steam to be quickly discharged to fast quenching case ontology 2, blower.
On the basis of the respective embodiments described above, guidance set 4 includes guide plate and guide support frame, guide support frame spiral shell
Bolt is connected on the roller rack of conticaster, and guide plate is installed on guide support frame according to preset direction.Above-mentioned setting, due to
Speed of speed of the continuous casting billet when entering fast quenching case ontology 2 from before is different, and the moving direction of continuous casting billet is easy to cause to occur
Variation, passes through the setting of guide plate and guide support frame, it is ensured that continuous casting billet smoothly enters inside fast quenching case ontology 2.
On the basis of the respective embodiments described above, cooling component includes being located to be separately positioned on the upper of continuous casting billet or more two sides
Spray tube 3 and lower spray tube 7, also, several nozzles are equipped on upper spray tube 3 and lower spray tube 7.
Specifically, cooling component is at least five groups shared, respectively corresponds and be mounted between the carrying roller of two neighboring conticaster, often
Group cooling component includes at least four row's nozzles, and at least two rows are respectively arranged in the two sides up and down of continuous casting billet, and every row's nozzle includes at least five
A nozzle.Preferably, cooling component shares five groups, and every group of cooling component includes at least four row's nozzles, the two sides up and down of continuous casting billet
Each arrangement is two rows of, and every row's nozzle includes five nozzles, amounts to 100 nozzles.
On the basis of the respective embodiments described above, the irrigation pressure of upper spray tube 3 and lower spray tube 7 is 0.4-
0.6MPa, spray time≤150s, the amount of water sprayed of upper spray tube 3 are 40-80m3/ h, preferably 60m3/ h, the spray of lower spray tube 7
Water is 100-140m3/ h, preferably 120m3/h。
On the basis of the respective embodiments described above, positioning component 5 is including photoelectric sensor and for hanging photoelectric sensor
It is located at the chain of the upside inside fast quenching case ontology 2, controller is used to detect the marginal position of continuous casting billet in photoelectric sensor
Afterwards, judge whether continuous casting billet reaches the middle part of fast quenching case ontology 2 according to the movement speed of continuous casting billet, and controlled afterwards in place in continuous casting billet
Cooling component processed opens work.
Specifically, the movement speed of continuous casting billet depends on the velocity of rotation of carrying roller, controller can directly pass through conticaster
In parameter information obtain continuous casting billet movement speed.Continuous casting billet is being respectively in the movement speed for entering the front and back of fast quenching case ontology 2
20m/min, 30m/min, for continuous casting fixed-length length between 2.5m~4m, controller can pass through the half of calculating continuous casting billet
Ratio between length and the movement speed of continuous casting billet detects the edge of continuous casting billet in photoelectric sensor as delay time
When position, after delay time, positioning is completed, stops the movement of continuous casting billet, cooling treatment is carried out to it.
Further, Fig. 2 show section phase constitution after continuous casting billet solidifies entirely and is distributed, and big region dark color position is pure austenite
Phase, light areas are two-phase section, and zonule dark color position is pure cryogenic ferritic phase, it can be seen that the pure Ovshinsky of continuous casting billet at this time
Body mutually accounts for about 85% or more；Fig. 3 show section phase constitution distribution in rapid cooling 200 seconds after continuous casting billet solidifies entirely, at this time continuous casting billet
The pure austenite ratio of section is about 70%, and the tissue on continuous casting billet surface about 10% is pure iron ferritic phase, which is distributed shape
Formula is it is possible to prevente effectively from hot charging crack defect generates；Fig. 4 show different hot-mounting process continuous casting billet heating process curves, from Fig. 4
In as can be seen that the continuous casting billet after rapid cooling is heated to greatly reduce the time required to target temperature, as shown in table 1.
The time required to continuous casting billet after 1 rapid cooling of table is heated to target temperature
| Type | Charging temperature (DEG C) | Heating target temperature (DEG C) | Heating time (min) |
| A | Room temperature | 1160~1180 | 150 |
| B | 500 | 1160~1180 | 120 |
| C | Rapid cooling | 1160~1180 | 84 |
Under normal conditions, continuous casting billet cold charge heating energy consumption is about 2.1GJ, the heating energy consumption of 500 DEG C of stacking warm load slabs
About 1.6GJ, ton steel are economized on coal about 17 kilograms, and the heating energy consumption that rapid cooling directly fills is about 1.3GJ, 27 kilograms of standards of ton steel saving energy
Coal.
Device provided by the present embodiment, by the application of continuous casting billet surface fast-cooling technology, by continuous casting billet surface 8-10mm
Thick surface layer temperatures are reduced to pure ferritic phase, i.e., about 600 DEG C hereinafter, be also easy to produce hot charging crack to solve wide and thick slab
The problem of.
What needs to be explained here is that when device does not carry out spray operation, the device may be at bleed state to trench into
Row flushing cinder.
Other than the cooling device three times of above-mentioned continuous casting billet, present invention also provides a kind of three including above-mentioned continuous casting billet
The conticaster of secondary cooling device, refer to the prior art for other Each parts of the conticaster, and repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The cooling device three times of continuous casting billet provided herein is described in detail above.Tool used herein
The principle and implementation of this application are described for body example, the above embodiments are only used to help understand this Shen
Method and its core concept please.It should be pointed out that for those skilled in the art, not departing from the application
Under the premise of principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application right
It is required that protection scope in.
Claims (10)
1. a kind of cooling device three times of continuous casting billet, which is characterized in that the spray system including conticaster track end is arranged in
Fast quenching case ontology (2) and cooling component, guidance set (4), positioning component (5) and controller between steel rolling rail；Institute
The inside that cooling component is located at the fast quenching case ontology (2) is stated, the guidance set (4) is located at the fast quenching case ontology (2)
Arrival end；The location information that the controller is used to obtain the positioning component (5) controls the cooling component work.
2. the cooling device three times of continuous casting billet according to claim 1, which is characterized in that further include for steam is quick
The flue and fan assembly (1) of the fast quenching case ontology (2) is discharged.
3. the cooling device three times of continuous casting billet according to claim 1, which is characterized in that the guidance set (4) includes
Guide plate and guide support frame, the guide support frame are bolted on the roller rack of the conticaster, the guide plate
It is installed on the guide support frame according to preset direction.
4. the cooling device three times of continuous casting billet according to claim 1, which is characterized in that the cooling component includes being located at
Be separately positioned on the continuous casting billet up and down two sides upper spray tube (3) and lower spray tube (7), also, the upper spray tube (3) and
Several nozzles are equipped on the lower spray tube (7).
5. the cooling device three times of continuous casting billet according to claim 4, which is characterized in that the cooling component is shared at least
It five groups, respectively corresponding and is mounted between the carrying roller of two neighboring conticaster, cooling component described in every group includes at least four row's nozzles,
At least two rows are respectively arranged in the two sides up and down of the continuous casting billet, and nozzle described in every row includes at least five nozzles.
6. the cooling device three times of continuous casting billet according to claim 4, which is characterized in that the upper spray tube (3) and under
The irrigation pressure of spray tube (7) is 0.4-0.6MPa, spray time≤150s, and the amount of water sprayed of the upper spray tube (3) is 40-
80m3/ h, the amount of water sprayed of the lower spray tube (7) are 100-140m3/h。
7. the cooling device three times of continuous casting billet according to claim 1, which is characterized in that the positioning component (5) includes
Photoelectric sensor and for the photoelectric sensor to be hung to the chain for being located at the internal upside of the fast quenching case ontology (2), it is described
Controller is used for after the marginal position that the photoelectric sensor detects the continuous casting billet, according to the mobile speed of the continuous casting billet
Degree judge whether the continuous casting billet reaches the middle part of the fast quenching case ontology (2), and described in controlling afterwards in place in the continuous casting billet
Cooling component opens work.
8. according to claim 1 to the cooling device three times of continuous casting billet described in 7 any one, which is characterized in that further include peace
The temperature sounder of rear surface temperature of quenching mounted in the outlet end of the fast quenching case ontology (2), for detecting the continuous casting billet
(6), the difference that the controller is also used to quench according between rear surface temperature and pre-set target temperature is to next continuous casting
The cooling water inflow of base is adjusted.
9. the cooling device three times of continuous casting billet according to claim 8, which is characterized in that the pre-set target temperature is
550 DEG C, the controller often exceeds 10 DEG C of the pre-set target temperature according to the rear surface temperature of quenching and just increases compensation 4-
6m3The cooling component is adjusted in the mode of the amount of water sprayed of/h.
10. a kind of conticaster, the cooling device three times including continuous casting billet, which is characterized in that the dress cooling three times of the continuous casting billet
It is set to the cooling device three times of continuous casting billet described in claim 1 to 9 any one.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865811A (en) * | 2019-04-04 | 2019-06-11 | 山东钢铁股份有限公司 | A kind of three times cooling device of conticaster and its continuous casting billet |
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2019
- 2019-04-04 CN CN201920458836.4U patent/CN209681090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109865811A (en) * | 2019-04-04 | 2019-06-11 | 山东钢铁股份有限公司 | A kind of three times cooling device of conticaster and its continuous casting billet |
| CN109865811B (en) * | 2019-04-04 | 2024-06-11 | 山东钢铁股份有限公司 | Continuous casting machine and tertiary cooling device of continuous casting blank thereof |
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