CN115283656A - Quick-change connecting piece for tundish of round billet continuous casting machine - Google Patents
Quick-change connecting piece for tundish of round billet continuous casting machine Download PDFInfo
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- CN115283656A CN115283656A CN202210926666.4A CN202210926666A CN115283656A CN 115283656 A CN115283656 A CN 115283656A CN 202210926666 A CN202210926666 A CN 202210926666A CN 115283656 A CN115283656 A CN 115283656A
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- ring
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- quick
- circular ring
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 19
- 230000007547 defect Effects 0.000 abstract description 7
- 238000005266 casting Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a tundish quick-change connector of a round billet continuous casting machine, which comprises: the connecting rods are uniformly distributed along the circumferential direction of the upper ring, the upper end of each connecting rod is connected with the upper ring, and the lower end of each connecting rod is connected with the lower ring to form a circular truncated cone-shaped frame body; the square frame is connected with the inner side surface of the upper circular ring, and a plurality of U-shaped pieces are hung and connected on the frame of the square frame; the circular plate is positioned at the upper part of the lower circular ring, the peripheral surface of the circular plate is connected with the inner side surface of the connecting rod, and the top surface of the circular plate is connected with the square plate; the lap joint frame is connected with the bottom surface of the circular plate, and the end part of the lap joint frame extends out of the frame body. The quick-change connecting piece for the tundish of the round billet continuous casting machine effectively avoids the blank defect caused by the falling of cold materials into the crystallizer, avoids the potential safety hazard caused by manually feeding the cold materials, and further improves the quick-change efficiency of the connecting piece.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a quick-change connecting piece for a tundish of a round billet continuous casting machine.
Background
In the continuous casting of steel, the tundish needs to be replaced due to the limitation of the service life of the refractory or in order to ensure the composition of the cast slab. In order to increase the operating rate of conticaster, improve the productivity, mostly implement quick replacement to the tundish at present, but this kind of quick replacement technique generally adopts the manual work to put into cold burden, consequently brings some drawbacks: firstly, the cold material is easy to fall into molten steel in the crystallizer and can slide to a lower casting blank along the liquid core, and finally the cold material is captured by a blank shell to cause defects of a blank finished product; secondly, the manual cold material feeding consumes long time, and influences the quick-change quality; thirdly, molten steel is easy to splash due to insufficient drying of cold materials, and great hidden danger is brought to safe production; fourthly, the manual cold charge is easily interfered with the wall of the crystallizer, and the coating of the crystallizer is damaged by friction.
The chinese patent specification discloses a tundish quick-change tool for medium and large continuous casting billets (publication number CN 202199767U), and specifically discloses the following: the casting blank quick-change device comprises a quick-change connecting piece, the structure of the quick-change connecting piece is a circular truncated cone-shaped frame body which is made of deformed steel bars and is large at the top and small at the bottom, and by adopting the technical scheme, the tundish can be quickly, safely and faultlessly replaced, so that the casting blank can reach the accurate position in a crystallizer in the quick-change process, the operation rate is improved, and the productivity is improved.
However, the utility model adopts the structure that a plurality of thread steels are arranged at the center of the crystallizer, and a plurality of steel bars are arranged at the contact part of the wall of the crystallizer and the casting blank as the cooling material, so that the defects mentioned in the background technology still can appear.
Disclosure of Invention
1. Technical problem to be solved
The invention provides a quick-change connecting piece for a tundish of a round billet continuous casting machine, which aims to: the blank defect caused by the fact that cold materials fall into the crystallizer is avoided, potential safety hazards caused by the fact that the cold materials are manually put in are avoided, and the quick-change efficiency of the connecting piece is further improved.
2. Technical scheme
The invention adopts the following technical scheme that:
the connecting rods are uniformly distributed along the circumferential direction of the upper ring, the upper end of each connecting rod is connected with the upper ring, and the lower end of each connecting rod is connected with the lower ring to form a circular truncated cone-shaped frame body;
the square frame is connected with the inner side surface of the upper circular ring, and a plurality of U-shaped pieces are hung and connected on the frame of the square frame; the circular plate is positioned at the upper part of the lower circular ring, the peripheral surface of the circular plate is connected with the inner side surface of the connecting rod, and the top surface of the circular plate is connected with the square plate; the lap joint frame is connected with the bottom surface of the circular plate, and the end part of the lap joint frame extends out of the frame body.
The axial lead of the circular plate is coincided with the axial lead of the lower circular ring, and the axial lead of the upper circular ring is coincided with the axial lead of the lower circular ring.
The distance between the circular plate and the lower circular ring is 180mm.
The internal diameter of going up the ring is 546mm, and the internal diameter of lower ring is 466mm, and the height of going up the ring apart from lower ring is 500mm.
The upper circular ring, the lower circular ring, the connecting rod, the square frame, the circular plate, the lap joint frame, the U-shaped piece and the square plate are all made of steel.
The connections are all welds.
3. Advantageous effects
The quick-change connecting piece for the tundish of the round billet continuous casting machine effectively avoids the blank defect caused by the falling of cold materials into the crystallizer, avoids the potential safety hazard caused by manually feeding the cold materials, and further improves the quick-change efficiency of the connecting piece.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a schematic bottom view of the structure of fig. 1.
Detailed Description
Specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings so as to enable those skilled in the art to more clearly understand the invention.
Examples
As shown in fig. 1, 2, and 3, the present embodiment includes:
the connecting rods are uniformly distributed along the circumferential direction of the upper ring, the upper end of each connecting rod is connected with the upper ring, the lower end of each connecting rod is connected with the lower ring to form a truncated cone-shaped frame body, and the upper ring, the lower ring and the connecting rods are all made of deformed steel with the diameter of 14 mm;
the cold material processing device also comprises a square frame 4, a circular plate 5 and a cross-shaped lap joint frame 6, wherein the square frame is made of deformed steel with the diameter of 14mm, the square frame is connected with the inner side surface of the upper circular ring, a plurality of U-shaped pieces 7 are hung and connected on the side frame of the square frame, and the U-shaped pieces are made of deformed steel with the diameter of 6mm and used as cold materials; the circular plate is a steel plate, the thickness of the circular plate is 15mm, the circular plate is positioned at the upper part of the lower circular ring, the distance between the circular plate and the lower circular ring is 180mm, the peripheral surface of the circular plate is connected with the inner side surface of the connecting rod, and the top surface of the circular plate is connected with the square plate 8; the square plate is 20mm in thickness and 220mm in side length and is used for receiving melted cold materials so as to prevent the cold materials from falling into the blank in the crystallizer after being melted and causing the defect of the blank; the lapping frame is formed by mutually and vertically connecting two pieces of deformed steel bar with the diameter of 14mm, the lapping frame is in a cross shape and is connected to the bottom surface of the circular plate, and four end parts of the lapping frame extend out of the circular table-shaped frame body.
The axial lead of the circular plate is coincided with the axial lead of the lower circular ring, and the axial lead of the upper circular ring is coincided with the axial lead of the lower circular ring.
The internal diameter of going up the ring is 546mm, and the internal diameter of lower ring is 466mm, and the height of going up the ring apart from lower ring is 500mm.
The connections are all welds.
The tundish quick-change connecting piece of the round billet continuous casting machine is mainly used for quick change of a section with the diameter of 600mm, and the specific use method is as follows:
1) Starting a quick change program when the tonnage of the tundish reaches 15t, reducing the pulling speed of the system according to the program, stopping pouring when the tonnage of the tundish reaches 13t, and driving away the tundish car at a pouring position;
2) The casting powder in the crystallizer is cleaned, so that the situation that the casting powder is too much to block a molten steel channel to cause weak joint is prevented;
3) An operator hooks the upper ring of the connecting piece by using a handle, slowly puts the connecting piece into the crystallizer, immediately takes off the handle, and the connecting piece is stably lapped on the solidified blank shell by virtue of a lapping frame at the bottom of the circular plate;
4) Continuously pulling down the casting blank, leaning against the wall of the copper pipe by using a ruler for measurement, and stopping pulling down the casting blank when the height from the top surface of the blank shell to the upper edge of the crystallizer is 400 mm;
5) The tundish car in the waiting position is driven to a pouring position, the height of the tundish car is reduced to a set position, and pouring is started;
6) And after the pulling speed is stable, the quick change program is ended.
The invention adopts a plurality of U-shaped pieces 7 which are hung and connected on the frame of the square frame as cold materials, and the square plate 8 on the circular plate is used for bearing the melted cold materials, and the bottom of the circular plate is also connected with the lap joint frame, so that the connecting piece can be firmly and stably fixed on the solidified blank shell.
The quick-change connecting piece for the tundish of the round billet continuous casting machine effectively avoids the blank defect caused by the falling of cold materials into the crystallizer, avoids the potential safety hazard caused by manually feeding the cold materials, and further improves the quick-change efficiency of the connecting piece.
Claims (6)
1. A tundish quick-change connecting piece of a round billet continuous casting machine comprises an upper circular ring (1), a lower circular ring (2) and a plurality of connecting rods (3), wherein the connecting rods are uniformly distributed along the circumferential direction of the upper circular ring, the upper end of each connecting rod is connected with the upper circular ring, and the lower end of each connecting rod is connected with the lower circular ring to form a circular truncated cone-shaped frame body; the method is characterized in that: the device also comprises a square frame (4), a circular plate (5) and a cross-shaped lap joint frame (6), wherein the square frame is connected with the inner side surface of the upper circular ring, and a plurality of U-shaped pieces (7) are hung and connected on the side frame of the square frame; the circular plate is positioned at the upper part of the lower circular ring, the peripheral surface of the circular plate is connected with the inner side surface of the connecting rod, and the top surface of the circular plate is connected with the square plate (8); the lap joint frame is connected with the bottom surface of the circular plate, and the end part of the lap joint frame extends out of the frame body.
2. The tundish quick-change connector of the round billet continuous casting machine according to claim 1, characterized in that: the axial lead of the circular plate is coincided with the axial lead of the lower circular ring, and the axial lead of the upper circular ring is coincided with the axial lead of the lower circular ring.
3. The tundish quick-change connector of the round billet continuous casting machine according to claim 1 or 2, characterized in that: the distance between the circular plate and the lower circular ring is 180mm.
4. The tundish quick-change connector of the round billet continuous casting machine according to claim 3, characterized in that: the internal diameter of going up the ring is 546mm, and the internal diameter of lower ring is 466mm, and the height of going up the ring apart from lower ring is 500mm.
5. The tundish quick-change connector of the round billet continuous casting machine according to claim 4, characterized in that: the upper circular ring, the lower circular ring, the connecting rod, the square frame, the circular plate, the lap joint frame, the U-shaped piece and the square plate are all made of steel.
6. The tundish quick-change connector of the round billet continuous casting machine according to claim 5, characterized in that: the connections are all welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926666.4A CN115283656A (en) | 2022-08-03 | 2022-08-03 | Quick-change connecting piece for tundish of round billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926666.4A CN115283656A (en) | 2022-08-03 | 2022-08-03 | Quick-change connecting piece for tundish of round billet continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115283656A true CN115283656A (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210926666.4A Pending CN115283656A (en) | 2022-08-03 | 2022-08-03 | Quick-change connecting piece for tundish of round billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115283656A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2903245A1 (en) * | 1979-01-29 | 1980-08-07 | Sumitomo Metal Ind | Altering the width of slabs during continuous casting - where chill frame possessing the new width required is placed in mould, so narrow mould walls can be adjusted to new width |
| DE3930459A1 (en) * | 1989-09-12 | 1991-03-21 | Dislich Margrit | Connecting socket for joining together two concasting(s) |
| CN101722303A (en) * | 2009-12-16 | 2010-06-09 | 芜湖新兴铸管有限责任公司 | Quick-change tool of continuous production of continuous casting blooms |
| CN204396816U (en) * | 2014-12-12 | 2015-06-17 | 芜湖新兴铸管有限责任公司 | A kind of quick change cold burden frame |
| CN208050892U (en) * | 2018-03-27 | 2018-11-06 | 山东钢铁股份有限公司 | A kind of strand attachment device |
| CN212168906U (en) * | 2020-05-26 | 2020-12-18 | 建龙北满特殊钢有限责任公司 | Integral quick-change connector for round billet continuous casting |
| CN217070686U (en) * | 2022-01-10 | 2022-07-29 | 石钢京诚装备技术有限公司 | Quick-change connecting device suitable for large-diameter continuous casting round billet |
| CN114799101A (en) * | 2022-05-06 | 2022-07-29 | 马鞍山江润冶金有限责任公司 | Quick-change connector for continuous casting round billet and application thereof |
-
2022
- 2022-08-03 CN CN202210926666.4A patent/CN115283656A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2903245A1 (en) * | 1979-01-29 | 1980-08-07 | Sumitomo Metal Ind | Altering the width of slabs during continuous casting - where chill frame possessing the new width required is placed in mould, so narrow mould walls can be adjusted to new width |
| DE3930459A1 (en) * | 1989-09-12 | 1991-03-21 | Dislich Margrit | Connecting socket for joining together two concasting(s) |
| CN101722303A (en) * | 2009-12-16 | 2010-06-09 | 芜湖新兴铸管有限责任公司 | Quick-change tool of continuous production of continuous casting blooms |
| CN204396816U (en) * | 2014-12-12 | 2015-06-17 | 芜湖新兴铸管有限责任公司 | A kind of quick change cold burden frame |
| CN208050892U (en) * | 2018-03-27 | 2018-11-06 | 山东钢铁股份有限公司 | A kind of strand attachment device |
| CN212168906U (en) * | 2020-05-26 | 2020-12-18 | 建龙北满特殊钢有限责任公司 | Integral quick-change connector for round billet continuous casting |
| CN217070686U (en) * | 2022-01-10 | 2022-07-29 | 石钢京诚装备技术有限公司 | Quick-change connecting device suitable for large-diameter continuous casting round billet |
| CN114799101A (en) * | 2022-05-06 | 2022-07-29 | 马鞍山江润冶金有限责任公司 | Quick-change connector for continuous casting round billet and application thereof |
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Application publication date: 20221104 |