CN108555274B - Quick-changing method for special-shaped blank tundish - Google Patents
Quick-changing method for special-shaped blank tundish Download PDFInfo
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- CN108555274B CN108555274B CN201810528578.2A CN201810528578A CN108555274B CN 108555274 B CN108555274 B CN 108555274B CN 201810528578 A CN201810528578 A CN 201810528578A CN 108555274 B CN108555274 B CN 108555274B
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- tundish
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
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Abstract
The invention discloses a quick-change method for a tundish of a special-shaped blank, and belongs to the field of special-shaped blank continuous casting. The invention relates to a quick-changing method for a special-shaped blank tundish, which comprises the following steps: step A: preparing a special-shaped blank tundish quick-change device; and (B) step (B): installing a quick change device of the special-shaped blank tundish above the crystallizer; step C: gradually reducing the addition amount of the protective slag in the crystallizer, and when the thickness of the protective slag layer in the crystallizer is 3-8mm and the temperature of the molten steel surface in the crystallizer is 1510-1530 ℃, rotating the rotating disk to simultaneously insert two continuous blank members into the target position in the crystallizer; step D: pouring the molten steel in the tundish into the crystallizer. The invention aims to overcome the defects of low installation speed and low installation precision of the existing continuous blank component during the quick-change operation of the tundish, and provides a quick-change method for the tundish of the special-shaped blank, which improves the installation speed, ensures the installation precision and ensures the smooth completion of the quick-change operation of the tundish.
Description
Technical Field
The invention relates to the field of continuous casting of special-shaped blanks, in particular to a quick-changing method of a special-shaped blank tundish.
Background
With the development of steel enterprises and the improvement of the whole industrial level, the steel production scale is continuously increased, the requirement on the production efficiency is higher and higher, and the production efficiency of steelmaking continuous casting becomes the bottleneck problem of the development of the steel enterprises. In the continuous casting aspect, in order to realize continuous casting which is continuous for a long time, a submerged nozzle quick replacement process, a ladle quick replacement process and related equipment have been developed. The service life of the continuous casting tundish directly influences the improvement of the operation rate of the continuous casting machine, and by adopting the quick change technology of the continuous casting tundish, the shutdown times of the casting machine can be reduced, the preparation time of the tundish can be effectively reduced, the operation rate of the casting machine can be improved, the productivity of the casting machine can be improved, and the production cost can be reduced.
Under the condition that the service life of the tundish cannot be prolonged obviously, the development of a tundish quick-change process is very necessary. The continuous casting process of the special-shaped blank is characterized in that the special-shaped blank has special geometric shape of the section of the blank, high solidification speed and high requirements on firmness, quick change speed and connection precision of the connection part of new and old blanks in the quick change process of the tundish, but the quick change process of the tundish is mainly manually operated by operators, so that the process stability is difficult to ensure, once the steel continuous blank component is manually inserted into molten steel in a crystallizer, the copper plate of the crystallizer is slightly scratched due to misoperation, the surface quality of the blank is reduced, the copper plate of the crystallizer is damaged due to heavy damage, production accidents are caused, and the production rhythm is disturbed.
Related technical solutions for a quick-change device for a tundish of a beam blank in the prior art are disclosed, for example, patent publication No.: CN1986115a, publication date: the invention is named as 2007, 06 and 27 days: the special-shaped blank continuous casting tundish quick water gate pouring method and device comprises a tundish and a crystallizer, wherein the tundish is provided with at least two tundish water gates, a quick water gate mechanism is arranged below each tundish water gate, a sliding water feeding gate and a sliding water discharging gate are arranged on each tundish water gate, the quick water gate mechanism is respectively connected with the tundish water gate and a full-immersion water gate, the full-immersion water gate is inserted in the crystallizer and supported by a bracket, molten steel is poured by the two closed steel flow channels, secondary oxidation of the molten steel is stopped, and the quality of a casting blank is improved; the quick water gate mechanism regulates and controls the flow of molten steel and the liquid level in the crystallizer, so that the bonding and steel leakage tendency is reduced; the online quick replacement of the water gap is realized, the number of continuous pouring furnaces of the tundish is increased, the replacement times and the use amount of the tundish are reduced, and the operation rate of the casting machine is increased. However, the installation speed and the installation accuracy of the connecting member in this application are low, and it is difficult to ensure smooth completion of the tundish quick-change operation. However, the continuous slab members used in this application do not ensure a firm connection between the new and old slabs.
In summary, how to overcome the defects of the existing connecting blank component that the installation speed and the installation precision are low during the quick-change operation of the tundish is a technical problem to be solved in the prior art.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of low installation speed and low installation precision of the existing continuous blank component during the quick-change operation of the tundish, and provides a quick-change method for the tundish of the special-shaped blank, which improves the installation speed, ensures the installation precision and ensures the smooth completion of the quick-change operation of the tundish.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the invention relates to a quick-changing method for a special-shaped blank tundish, which comprises the following steps:
step A: preparing a special-shaped blank tundish quick-change device;
and (B) step (B): installing a quick change device of the special-shaped blank tundish above the crystallizer;
step C: gradually reducing the addition amount of the protective slag in the crystallizer, and when the thickness of the protective slag layer in the crystallizer is 3-8mm and the temperature of the molten steel surface in the crystallizer is 1510-1530 ℃, rotating the rotating disk to simultaneously insert two continuous blank members into the target position in the crystallizer;
step D: pouring the molten steel in the tundish into the crystallizer.
As a further improvement of the present invention, the parison tundish quick change apparatus includes:
the support frame is internally provided with two mutually parallel sliding rails, and the sliding rails are arranged along the vertical direction;
the bearing rod is arranged along the horizontal direction, one end of the bearing rod is matched and installed on one sliding rail, and the other end of the bearing rod is matched and installed on the other sliding rail;
the connecting blank component comprises two parallel horizontal sections, and the two horizontal sections are connected through a vertical section; the upper part of the vertical section is connected with a plurality of inclined sections which incline upwards, and the lower part of the vertical section is connected with a plurality of inclined sections which incline downwards; two ends of the bearing rod are respectively connected with a blank member.
As a further improvement of the invention, two ends of the bearing rod are respectively provided with a positioning groove, and two sides of each positioning groove are respectively provided with an extension rod extending outwards; the middle part of the upper horizontal section of the connecting blank member is provided with positioning protrusions extending to two sides respectively, and the positioning protrusions are hung above the positioning grooves.
As a further improvement of the invention, a lifting piece is arranged in the supporting frame, one side of the lifting piece is matched and arranged on a slideway in the vertical direction, and a straight rack in the vertical direction is arranged on the other side of the lifting piece; the straight rack is meshed with the transmission gear, and the end part of the transmission gear is connected with the middle part of the rotating disc through a transmission rod; the middle part of the bearing rod is connected to the lifting piece.
As a further improvement of the invention, a plurality of positioning pieces are arranged at the bottom of the supporting frame.
As a further improvement of the invention, a slag thickness gauge is arranged in the supporting frame, and the slag thickness gauge is a wire coil wound with copper wire.
As a further improvement of the invention, a laser range finder is arranged at the top of the supporting frame.
As a further improvement of the invention, an infrared thermometer is arranged at the top of the supporting frame.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) The invention aims to overcome the defects of unstable installation precision, installation speed and installation time of the connecting blank component during the quick change of the existing special-shaped blank tundish, and provides a special-shaped blank tundish quick change device and method, which can grasp the optimal installation time of the connecting blank component, improve the installation speed, ensure the installation precision, improve the joint quality of casting blanks, ensure the smooth completion of the quick change operation of the tundish and improve the production efficiency.
(2) The geometric shape of the continuous blank component is beneficial to the continuous blank component to be quickly inserted into a crystallizer in the quick-change process of the tundish, fused and solidified with molten steel in a seamless way, and fused and solidified with the molten steel after the tundish is replaced in a close way, so that the firm connection between new and old casting blanks can be ensured.
(3) The special-shaped blank tundish quick-changing device can monitor the thickness of the covering slag and the temperature of molten steel in the crystallizer, thereby ensuring the accurate installation time of the continuous blank components, ensuring the synchronous and quick installation of the two continuous blank components, ensuring the installation precision of the continuous blank components by the three-dimensional positioning function and avoiding the continuous blank components from rubbing and damaging the copper plate of the crystallizer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of a parison tundish quick change apparatus according to an embodiment;
FIG. 2 is a schematic side view of a parison tundish quick change apparatus according to an embodiment;
FIG. 3 is a schematic front view of a connecting member according to an embodiment;
FIG. 4 is a schematic top view of a carrier bar according to an embodiment;
FIG. 5 is a schematic top view of a preform in an embodiment;
fig. 6 is a flowchart of a parison tundish quick change method according to an embodiment.
Reference numerals in the schematic drawings illustrate: 1. a support frame; 2. a green body connecting member; 201. a horizontal section; 2011. positioning the bulge; 202. a vertical section; 203. an inclined section; 204. a buffer section; 205. a projecting rod; 206. an extension rod; 207. a shunt section; 3. an extension rod; 4. a slag thickness gauge; 5. a rotating disc; 6. a transmission rod; 7. a transmission gear; 8. a lifting member; 9. a slide rail; 10. a positioning piece; 11. a laser range finder; 12. an infrared thermometer; 13. a carrier bar; 1301. a positioning groove; 14. and (5) a special-shaped blank.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, 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 of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples.
Example 1
Referring to fig. 1 to 5, the parison tundish quick-change apparatus of the present embodiment includes: the support frame 1, the inside of the support frame 1 is provided with two mutually parallel slide rails 9, and the slide rails 9 are arranged along the vertical direction; the bearing rod 13 is arranged along the horizontal direction, one end of the bearing rod 13 is matched and installed on one sliding rail 9, and the other end of the bearing rod 13 is matched and installed on the other sliding rail 9; the continuous blank member 2, the continuous blank member 2 is a steel structural member for connecting new and old casting blanks formed by molten steel before and after quick-change tundish, the continuous blank member 2 comprises two parallel horizontal sections 201, and the two horizontal sections 201 are connected through a vertical section 202; the upper part of the vertical section 202 is connected with a plurality of inclined sections 203 which incline upwards, the lower part of the vertical section 202 is connected with a plurality of inclined sections 203 which incline downwards, and the inclined sections 203 at the upper part and the lower part of the vertical section 202 are designed so that the continuous casting member 2 can be tightly connected with solidified molten steel to ensure that new and old casting blanks are firmly connected; a blank member 2 is connected to each end of the carrier bar 13. Wherein, two ends of the bearing rod 13 are respectively provided with a positioning groove 1301, and two sides of each positioning groove 1301 are respectively provided with an extension rod 3 extending outwards; the middle part of the upper horizontal section 201 of the continuous blank member 2 is provided with positioning protrusions 2011 which extend towards two sides respectively, the positioning protrusions 2011 are hung above the positioning grooves 1301, the positioning protrusions 2011 can support the weight of the whole continuous blank member 2, the positioning grooves 1301 are used for hanging the continuous blank member 2 at a specific height, when the continuous blank member 2 is used, the positioning protrusions 2011 which extend towards two sides on the upper horizontal section 201 are respectively lapped on corresponding extension rods 3, and then the continuous blank member 2 is pushed towards the direction of the positioning grooves 1301, so that the vertical section 202 of the continuous blank member 2 passes through the positioning grooves 1301, and the positioning protrusions 2011 on the continuous blank member 2 are hung above the positioning grooves 1301, so that the two continuous blank members 2 are conveniently and efficiently symmetrically connected to two ends of the bearing rods 13; the carrier bar 13 is used for placing the two continuous blank members 2 on the same horizontal plane, so as to ensure that the two continuous blank members 2 can be simultaneously inserted into corresponding positions of the section of the special-shaped blank crystallizer (refer to two rectangular areas of the section of the special-shaped blank 14 in fig. 5). A lifting piece 8 is arranged in the support frame 1, one side of the lifting piece 8 is matched and arranged on a slideway in the vertical direction, and a straight rack in the vertical direction is arranged on the other side of the lifting piece 8; the straight rack is meshed with the transmission gear 7, the lifting piece 8 can slide up and down in the slideway through the rotation of the transmission gear 7, the end part of the transmission gear 7 is connected with the middle part of the rotating disc 5 through the transmission rod 6, and the rotating disc 5 adjusts the height position of the lifting piece 8 through the transmission rod 6 and the transmission gear 7, so that the control of the height position of the blank connecting component 2 on the bearing rod 13 is realized; the middle part of the bearing rod 13 is connected to the lifting member 8. The bottom of the support frame 1 is provided with a plurality of positioning pieces 10, and the positioning pieces 10 are three movable bolts positioned on a plane and are used for positioning and mounting the whole special-shaped blank tundish quick-change device on the upper opening of the crystallizer, so that the lower inserting position of the connecting blank member 2 is positioned, and the inserting precision and the inserting speed of the connecting blank member 2 are improved. The slag thickness gauge 4 is arranged in the support frame 1, the slag thickness gauge 4 is a wire disc wound with copper wires, the wires are pulled out from the lower part of the wire disc, a scale is arranged above the wire disc, and the wires inserted into the crystallizer can be compared with the scale after being taken out and used for measuring the thickness of the covering slag in the crystallizer. The top of the support frame 1 is provided with a laser range finder 11, and the laser range finder 11 is used for measuring the distance between the upper end face of the continuous casting member 2 and the liquid level of steel, so as to ensure accurate control of the height position of the continuous casting member 2 and symmetrical distribution of the continuous casting member 2 in new and old casting blanks. The top of the support frame 1 is provided with an infrared thermometer 12, and the infrared thermometer 12 is used for measuring the temperature of the steel liquid level in the crystallizer so as to determine the proper inserting time of the continuous blank member 2.
Referring to fig. 6, the quick-change method for the parison tundish according to the present embodiment includes the following steps:
step A: preparing a special-shaped blank tundish quick-change device, processing a steel plate into the geometric shape of a continuous blank member 2, checking whether a tundish car track has sundries to influence walking, cleaning the tundish track, baking a new tundish to be changed to above 1000 ℃, and ensuring that a water gap is smooth, a mechanism sliding block is normal, and the tundish car is lifted, transversely moved and walked normally;
and (B) step (B): installing a quick change device of the special-shaped blank tundish above the crystallizer; specifically, the continuous blank members 2 are placed in an environment with the temperature of more than 100 ℃ for baking, the supporting frame 1 is rapidly and accurately positioned and installed above the crystallizer through the positioning piece 10 at the bottom of the supporting frame, the height of the bearing rod 13 is adjusted to a set position according to the laser range finder 11, and each continuous blank member 2 is suspended in the corresponding positioning groove 1301;
step C: gradually reducing the addition amount of the protective slag in the crystallizer, and when the thickness of the protective slag layer in the crystallizer is 3-8mm and the temperature of the molten steel surface in the crystallizer is 1510-1530 ℃, rotating the rotary disk 5 to simultaneously insert two continuous blank members 2 into the target position in the crystallizer; specifically, the cooling strength of the crystallizer and the secondary cooling is reduced, the addition amount of the casting powder is gradually reduced, the casting blank pulling speed is reduced, and after stopping casting and pulling speed, the flow blocking operation is carried out on each water gap and molten steel is stirred; measuring the thickness of a protective slag layer in a crystallizer for multiple times by using a slag thickness meter 4, after the protective slag layer in the crystallizer reaches the expected thickness of 3-8mm (the protective slag layer is too thick and is not beneficial to the insertion of a continuous blank member 2, the protective slag layer is too thin and is not beneficial to the formation of insulation protection on molten steel), observing the temperature change of the molten steel surface by using an infrared thermometer 12, simultaneously, safely and accurately inserting two continuous blank members 2 into a target position in the crystallizer by rotating a rotating disc 5 in a set temperature interval (1510-1530 ℃, the molten steel temperature is too low and is not beneficial to the insertion of the continuous blank member 2 and molten steel, stopping descending the continuous blank member 2 when the molten steel surface reaches the middle part of the continuous blank member 2, leaving half of the continuous blank member 2 above the molten steel surface, then starting to solidify the molten steel, fixing the position of the continuous blank member 2, taking the continuous blank member 2 out of a corresponding positioning groove 1301, and rapidly withdrawing the continuous blank member 2 from the special-shaped blank tundish quick-change device;
step D: pouring the tundish molten steel into a crystallizer; specifically, the old tundish car is moved away from the working position, the new tundish car is moved to the working position, the large ladle casting operation is carried out, the large ladle molten steel enters the tundish, the tundish molten steel is cast into the crystallizer, the high-temperature molten steel gradually submerges the continuous blank member 2, the pulling speed gradually returns to normal, and the cooling strength of the crystallizer and the secondary cooling water gradually returns.
The invention aims to overcome the defects of unstable installation precision, installation speed and installation time of an existing special-shaped blank tundish for installing a continuous blank member 2, and provides a special-shaped blank tundish quick-changing device and method, which can grasp the optimal installation time of the continuous blank member 2, improve the installation speed, ensure the installation precision, improve the seam quality of a casting blank, ensure the smooth completion of the tundish quick-changing operation and improve the production efficiency.
The geometric shape of the continuous blank member 2 is beneficial to the continuous blank member 2 to be quickly inserted into a crystallizer in the quick-change process of the tundish, fused and solidified with molten steel in a seamless manner, and fused and solidified with the molten steel after the tundish is replaced in a close manner, so that the firm connection between new and old casting blanks can be ensured.
The special-shaped blank tundish quick-changing device can monitor the thickness of the covering slag and the temperature of molten steel in the crystallizer, thereby ensuring the accurate installation time of the blank connecting components 2, ensuring the synchronous and quick installation of the two blank connecting components 2, ensuring the installation precision of the blank connecting components 2 by the three-dimensional positioning function, and avoiding the damage of the copper plate of the crystallizer by the rubbing of the blank connecting components 2.
Example 2
Referring to fig. 2, the structure of the parison tundish quick-change apparatus according to the present embodiment is substantially the same as that of embodiment 1, and further: each inclined section 203 is connected with a plurality of extension rods 206; the bottom end of the horizontal section 201 positioned at the lower part is provided with a buffer section 204, the buffer section 204 is of a cone structure with a small bottom and a large top, and the bottom end of the buffer section 204 is connected with an extending rod 205 extending downwards; the horizontal section 201 at the upper part is provided with an annular diversion section 207 at the periphery thereof, the upper surface of the diversion section 207 is an annular inclined plane inclined from top to bottom, and the height of the annular inclined plane in the direction close to the center point of the diversion section 207 is higher than that in the direction far away from the center point of the diversion section 207.
In this embodiment, a plurality of extension rods 206 are connected to each inclined section 203, and the plurality of extension rods 206 connected to each inclined section 203 increase the surface area of the whole inclined section 203 in contact with molten steel, so that new and old casting blanks can be firmly connected after the molten steel is solidified.
In this embodiment, the bottom end of the lower horizontal segment 201 is provided with a buffer segment 204, the buffer segment 204 is of a cone structure with a small bottom and a large top, the bottom end of the buffer segment 204 is connected with a downward extending rod 205, when the whole continuous blank member 2 is inserted into molten steel, the extending rod 205 is firstly contacted with molten steel, then the buffer segment 204 of the cone structure with a small bottom and a large top gradually extends into molten steel, the phenomenon that molten steel is splashed by being directly contacted with the horizontal segment 201 is avoided, and meanwhile, the whole continuous blank member 2 is smoothly extended into molten steel.
In this embodiment, an annular diversion section 207 is disposed around the upper horizontal section 201, the upper surface of the diversion section 207 is an annular inclined plane inclined from top to bottom, the height of the annular inclined plane in the direction of approaching the center point of the diversion section 207 is higher than the height in the direction of separating the center point of the diversion section 207, when molten steel flows from the tundish into the crystallizer, the molten steel is gathered in the crystallizer firstly through the blocking of the diversion section 207, and then the level of the gathered molten steel gradually rises to wrap the whole continuous casting member 2, so that the tight contact between the molten steel and the whole continuous casting member 2 is facilitated, and new and old casting blanks can be firmly connected after the molten steel is solidified.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The quick-change method for the special-shaped blank tundish is characterized by comprising the following steps of:
step A: preparing a special-shaped blank tundish quick-change device;
the quick-change device for the special-shaped blank tundish comprises:
the device comprises a support frame (1), wherein two mutually parallel sliding rails (9) are arranged inside the support frame (1), and the sliding rails (9) are arranged along the vertical direction;
the bearing rod (13), the said bearing rod (13) is set up along the horizontal direction, one end of the bearing rod (13) cooperates and installs on a slide rail (9), another end of the bearing rod (13) cooperates and installs on another slide rail (9);
the connecting blank component (2), wherein the connecting blank component (2) comprises two horizontal sections (201) which are parallel to each other, and the two horizontal sections (201) are connected through a vertical section (202); the upper part of the vertical section (202) is connected with a plurality of inclined sections (203) which incline upwards, and the lower part of the vertical section (202) is connected with a plurality of inclined sections (203) which incline downwards; two ends of the bearing rod (13) are respectively connected with a blank member (2);
a lifting piece (8) is arranged in the support frame (1), one side of the lifting piece (8) is arranged on a slideway in the vertical direction in a matching way, and a straight rack in the vertical direction is arranged on the other side of the lifting piece (8); the straight racks are meshed with a transmission gear (7), and the end part of the transmission gear (7) is connected with the middle part of the rotary disk (5) through a transmission rod (6); the middle part of the bearing rod (13) is connected to the lifting piece (8);
and (B) step (B): installing a quick change device of the special-shaped blank tundish above the crystallizer;
step C: gradually reducing the addition amount of the protective slag in the crystallizer, and when the thickness of the protective slag layer in the crystallizer is 3-8mm and the temperature of the molten steel surface in the crystallizer is 1510-1530 ℃, rotating the rotary disk (5) to simultaneously insert two continuous blank members (2) into the target position in the crystallizer;
step D: pouring the molten steel in the tundish into the crystallizer.
2. The method for quick changing a parison tundish according to claim 1, wherein: positioning grooves (1301) are respectively formed in two ends of the bearing rod (13), and extension rods (3) extending outwards are respectively arranged on two sides of each positioning groove (1301); the middle part of the upper horizontal section (201) of the continuous blank member (2) is provided with positioning protrusions (2011) which extend to two sides respectively, and the positioning protrusions (2011) are hung above the positioning grooves (1301).
3. A method for quick change of a parison tundish according to claim 1 or 2, characterized in that: the bottom of the supporting frame (1) is provided with a plurality of positioning pieces (10).
4. A method for quick change of a parison tundish according to claim 1 or 2, characterized in that: the slag thickness gauge (4) is arranged in the supporting frame (1), and the slag thickness gauge (4) is a wire coil wound with copper wires.
5. A method for quick change of a parison tundish according to claim 1 or 2, characterized in that: the top of support frame (1) is equipped with laser range finder (11).
6. A method for quick change of a parison tundish according to claim 1 or 2, characterized in that: an infrared thermometer (12) is arranged at the top of the supporting frame (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528578.2A CN108555274B (en) | 2018-05-29 | 2018-05-29 | Quick-changing method for special-shaped blank tundish |
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| CN201810528578.2A CN108555274B (en) | 2018-05-29 | 2018-05-29 | Quick-changing method for special-shaped blank tundish |
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| CN108555274B true CN108555274B (en) | 2023-10-13 |
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| CN110976833B (en) * | 2019-11-20 | 2021-07-23 | 河钢乐亭钢铁有限公司 | Quick-change cooling device and quick-change process for large-shrinkage steel grade hot tundish |
| CN114619008A (en) * | 2022-03-18 | 2022-06-14 | 重庆钢铁股份有限公司 | Method for continuously casting and quickly changing tundish of continuous casting machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10193054A (en) * | 1997-01-17 | 1998-07-28 | Sumitomo Metal Ind Ltd | Method and device for inserting and ejecting immersion nozzle to/from immersion nozzle exchanging apparatus |
| CN1986115A (en) * | 2005-12-22 | 2007-06-27 | 马鞍山钢铁股份有限公司 | Fast sprue-replacing casting method and device for continuous irregular blank casting ladle |
| CN200974113Y (en) * | 2006-11-22 | 2007-11-14 | 鞍钢股份有限公司 | Connecting piece for molten steel basket-change continuous casting |
| CN101091982A (en) * | 2007-07-17 | 2007-12-26 | 莱芜钢铁集团有限公司 | Method and device for carrying out protected casting for shaped blank continuous casting by using single immersed nozzle |
| CN202199767U (en) * | 2011-07-06 | 2012-04-25 | 芜湖新兴铸管有限责任公司 | Tundish quick-changing tool of middle and large-scale continuous casting blanks |
| CN202571272U (en) * | 2012-01-18 | 2012-12-05 | 西宁特殊钢股份有限公司 | Rapid tundish replacement iron and steel casting blank connecting part for continuous steel casting |
| CN203917843U (en) * | 2014-06-04 | 2014-11-05 | 马钢(集团)控股有限公司 | A kind of jockey for molten steel direct casting |
| CN105328174A (en) * | 2015-10-28 | 2016-02-17 | 山西昊业新材料开发有限公司 | Rapid water gap replacement device for beam blank continuous casting tundish |
-
2018
- 2018-05-29 CN CN201810528578.2A patent/CN108555274B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10193054A (en) * | 1997-01-17 | 1998-07-28 | Sumitomo Metal Ind Ltd | Method and device for inserting and ejecting immersion nozzle to/from immersion nozzle exchanging apparatus |
| CN1986115A (en) * | 2005-12-22 | 2007-06-27 | 马鞍山钢铁股份有限公司 | Fast sprue-replacing casting method and device for continuous irregular blank casting ladle |
| CN200974113Y (en) * | 2006-11-22 | 2007-11-14 | 鞍钢股份有限公司 | Connecting piece for molten steel basket-change continuous casting |
| CN101091982A (en) * | 2007-07-17 | 2007-12-26 | 莱芜钢铁集团有限公司 | Method and device for carrying out protected casting for shaped blank continuous casting by using single immersed nozzle |
| CN202199767U (en) * | 2011-07-06 | 2012-04-25 | 芜湖新兴铸管有限责任公司 | Tundish quick-changing tool of middle and large-scale continuous casting blanks |
| CN202571272U (en) * | 2012-01-18 | 2012-12-05 | 西宁特殊钢股份有限公司 | Rapid tundish replacement iron and steel casting blank connecting part for continuous steel casting |
| CN203917843U (en) * | 2014-06-04 | 2014-11-05 | 马钢(集团)控股有限公司 | A kind of jockey for molten steel direct casting |
| CN105328174A (en) * | 2015-10-28 | 2016-02-17 | 山西昊业新材料开发有限公司 | Rapid water gap replacement device for beam blank continuous casting tundish |
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