CN210139053U - Single tundish structure of eight-strand continuous casting - Google Patents
Single tundish structure of eight-strand continuous casting Download PDFInfo
- Publication number
- CN210139053U CN210139053U CN201920489925.5U CN201920489925U CN210139053U CN 210139053 U CN210139053 U CN 210139053U CN 201920489925 U CN201920489925 U CN 201920489925U CN 210139053 U CN210139053 U CN 210139053U
- Authority
- CN
- China
- Prior art keywords
- tundish
- hole
- stream
- outer side
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 33
- 230000000903 blocking effect Effects 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 abstract description 13
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a single tundish structure for eight-strand continuous casting, which consists of a ladle wall and a ladle bottom, and the opening is upward; two slag blocking walls and four slag blocking dams are symmetrically arranged in the tundish respectively, and flow stabilizers are arranged in the areas of the two slag blocking walls; each slag stopping wall is provided with 3 diversion holes which comprise a lower diversion hole and two upper diversion holes; the diameter of the lower diversion hole is phi 100mm, the hole direction is horizontal and parallel to the outer side wall of the tundish, an included angle between the downward direction and the horizontal direction is 15 degrees, and the distance between the center line of the hole and the horizontal direction of the outer side wall is 268 +/-2 mm; the diameter of the upper diversion hole is phi 80mm, the opening direction is horizontally parallel to the outer side wall of the tundish, an included angle between the downward direction and the horizontal direction is 8 degrees, the horizontal distance between the hole center line and the outer side wall is 320 +/-2 mm, and the horizontal distance between the center lines of the two upper diversion holes is 180 +/-2 mm; the vertical distance between the central lines of the upper diversion holes and the lower diversion holes is 300 +/-5 mm, and the vertical distance between the central line of the lower diversion holes and the bottom of the bag is 240 +/-5 mm. The tundish can improve the quality of a casting blank.
Description
Technical Field
The utility model relates to a continuous casting equipment, especially a single tundish structure of eight-strand continuous casting.
Background
Modern steel enterprises all adopt continuous casting to produce the steel billet at present, and the conticaster is to multithread development moreover, and 8 continuous casters more than flowing often set up 2 tundishes and control the casting flow respectively to reach the homogenization control's of the interior molten steel of tundish purpose. The technology is relatively mature, but enterprises provided with 1 tundish are not many, and the problems are that the number of tundish flows is large, the distance from a ladle to each casting flow is long, and the difference exists, so that the temperature and the components of molten steel reaching different casting flows are deviated and fluctuated, further the difference between the components of casting blanks and the internal quality is caused, and the requirements of high-quality casting blanks and rolling materials cannot be met, so that the homogenization control of the molten steel in the tundish becomes difficult. At present, no related production experience and patent technology exist, and with the development requirements of iron and steel enterprises and the production requirements of low-cost high-quality steel, the technology for producing by adopting the multi-flow single tundish in continuous casting has certain requirements, so that how to solve the problem that the molten steel homogenization control technology in the multi-flow single tundish becomes an important industry problem.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a package is interior even eight single tundish structures of flowing through continuous casting of molten steel.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: it is composed of a bag wall and a bag bottom, and the opening is upward; two slag blocking walls and four slag blocking dams are symmetrically arranged in the tundish respectively, and flow stabilizers are arranged in the areas of the two slag blocking walls; each slag stopping wall is provided with 3 diversion holes which comprise a lower diversion hole and two upper diversion holes; the diameter of the lower diversion hole is phi 100mm, the hole direction is horizontal and parallel to the outer side wall of the tundish, an included angle between the downward direction and the horizontal direction is 15 degrees, and the distance between the center line of the hole and the horizontal direction of the outer side wall is 268 +/-2 mm; the diameter of the upper diversion hole is phi 80mm, the opening direction is horizontally parallel to the outer side wall of the tundish, an included angle between the downward direction and the horizontal direction is 8 degrees, the horizontal distance between the hole center line and the outer side wall is 320 +/-2 mm, and the horizontal distance between the center lines of the two upper diversion holes is 180 +/-2 mm; the vertical distance between the central lines of the upper diversion holes and the lower diversion holes is 300 +/-5 mm, and the vertical distance between the central line of the lower diversion holes and the bottom of the bag is 240 +/-5 mm.
The flow stabilizer is provided with 1, and the structure is fou-shaped tank structure.
The height of the slag blocking dam is 60 +/-5 mm, the position is respectively positioned between the 2 nd stream and the 3 rd stream, between the 3 rd stream and the 4 th stream, between the 5 th stream and the 6 th stream, and between the 6 th stream and the 7 th stream.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the average residence time of the molten steel flow field in the tundish is prolonged, the dead zone volume is small, the response time of each flow is prolonged, the peak value occurrence time difference of the response time of each flow is small, the peak value is small, the uniformity value is good, and the homogenization control of the molten steel temperature and the components is facilitated; through practical application, the temperature difference between the flows in the tundish is less than 3 ℃, so that the casting blank drawing speed and cooling of each flow are favorably controlled, the good effect on improving the internal quality of the casting blank is achieved, and simultaneously, the full floating of inclusions in molten steel is favorably realized, and the casting blank quality is effectively improved.
The tundish is suitable for a billet caster with a cross section of 150mm (150 mm-200 mm) 200mm, and is suitable for 40-50 tons of tundish capacity.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a front view of the slag wall of the present invention;
FIG. 3 is a side view of the slag dam of the present invention;
FIG. 4 is a top view of the slag dam of the present invention;
fig. 5 is a front view of the current regulator of the present invention;
fig. 6 is a top view of the current stabilizer of the present invention.
In the figure: an outer side wall 1; 2-1 of a slag dam; 2-2 of a slag dam; 2-3 of a slag dam; 2-4 of a slag dam; 3-1 of a slag wall; 3-2 of a slag wall; a current stabilizer 4; 5-1 of a water gap; 5-2 of a water gap; 5-3 of a water gap; 5-4 of a water gap; 5-5 of a water gap; 5-6 of water gap; 5-7 of a water gap; 5-8 of water gap; an upper diversion hole 6; and a lower diversion hole 7.
Detailed Description
As shown in FIG. 1, the single tundish structure of the eight-strand continuous casting is composed of a ladle wall and a ladle bottom, wherein the ladle wall is composed of an outer side wall 1 in the length direction and an outer side wall in the width direction; a flow stabilizer 4, two slag blocking walls 3-1 and 3-2 and four slag blocking dams 2-1, 2-2, 2-3 and 2-4 are arranged in the ladle in a combined mode, and the opening is upward; two slag blocking walls 3-1 and 3-2 and four slag blocking dams 2-1, 2-2, 2-3 and 2-4 are respectively and symmetrically arranged in the tundish, and a current stabilizer 4 is arranged in the two slag blocking walls 3-1 and 3-2.
As shown in the figures 1-4, the single tundish structure of the eight-strand continuous casting is provided with two slag blocking walls 3-1 and 3-2 in a tundish, wherein the two slag blocking walls are arranged in a V-shaped molten steel impact area of the tundish and are arranged in a large ladle molten steel pouring area at the middle position in the length direction of the tundish; each slag stopping wall is provided with three flow guide holes, including a lower flow guide hole 7 and two upper flow guide holes 6. The diameter of the lower diversion hole 7 is phi 100mm, the horizontal direction of the hole is parallel to the outer side wall 1 of the tundish wall, the included angle between the hole and the horizontal direction is 15 degrees from inside to outside, and the nearest distance between the center line of the hole and the horizontal direction of the outer side wall 1 is 268 +/-2 mm. The diameter of the upper diversion hole 6 is phi 80mm, the opening direction is horizontally parallel to the outer side wall 1 of the tundish wall, the included angle between the opening direction and the horizontal direction is 8 degrees from inside to outside to bottom, and the distance between the hole center line and the horizontal nearest distance of the outer side wall 1 is 320 +/-2 mm. The vertical distance between the center lines of the upper flow guide hole 6 and the lower flow guide hole 7 is 300 +/-2 mm, namely the vertical distance between the centers of the thicknesses of the upper flow guide hole 6 and the lower flow guide hole 7 is 300 +/-2 mm; the vertical distance between the central line of the lower diversion hole 7 and the bottom of the ladle is 240 +/-5 mm, namely the vertical distance from the center of the thickness center of the lower diversion hole 7 to the bottom of the ladle is 240 +/-5 mm; the horizontal distance between the central lines of the two upper diversion holes 6 is 180 +/-2 mm. By adopting the diversion hole structure, the parameters such as the hole opening position, the hole diameter size, the hole opening direction and the like are reasonably designed, and the parameters are verified through a water model test, so that the optimal design is achieved.
In the single tundish structure of the eight-strand continuous casting, a flow stabilizer 4 with a conventional shape is arranged in the areas of two slag walls 3-1 and 3-2, as shown in figures 5 and 6; the fou-shaped tank body structure, the spherical crown-shaped bottom structure and the like reduce the impact of molten steel entering the tundish, the service life of the tundish is synchronous with that of the tundish, and the flow field is more stable. The inner diameter of the neck of the inner cavity of the fou-shaped tank body structure is 300 +/-2 mm, the maximum inner diameter is 420 +/-2 mm, the outer diameter is 520 +/-2 mm, and the height of the tank body is 250 +/-5 mm.
As shown in figure 1, the single tundish structure for eight-strand continuous casting has eight-strand nozzles 5-1, 5-2, 5-3, 5-4, 5-5, 5-6, 5-7 and 5-8; four slag blocking dams 2-1, 2-2, 2-3 and 2-4 are arranged at proper positions of the tundish, the height is 60 +/-5 mm, and the positions are respectively positioned between the 2 nd water flowing port 5-2 and the 3 rd water flowing port 5-3, between the 3 rd water flowing port 5-3 and the 4 th water flowing port 5-4, between the 5 th water flowing port 5-5 and the 5-6 th water flowing port 5-6 and between the 6 th water flowing port 5-6 and the 5-7 th water flowing port 5-6.
Use case 1: the scheme is applied to 150X150 square billet continuous casting machines in a Handover steel-making plant, steel grades such as SWRCH8A, SCM435, ML40Cr and the like are produced, the casting process is stable, the temperature difference of all streams is less than 3 ℃, and the grades of inclusions in casting blanks are A0.5, B1.0, C0.5 and D1.0.
Use case 2: the scheme is applied to a 200X200 square billet continuous casting machine in a Handover steel-making plant, steel grades such as GCr15, 42CrMo, S45C and 20CrMnTi are produced, the casting process is stable, the temperature difference of all the streams is less than 2.5 ℃, and the grades of inclusions in casting blanks are A0.5, B1.0, C0 and D1.0.
Claims (3)
1. The utility model provides a single tundish structure of eight STREAMING continuous casting which characterized in that: it is composed of a bag wall and a bag bottom, and the opening is upward; two slag walls (3-1, 3-2) and four slag dams (2-1, 2-2, 2-3, 2-4) are respectively and symmetrically arranged in the tundish, and flow stabilizers (4) are arranged in the areas of the two slag walls; each slag stopping wall is provided with 3 diversion holes which comprise a lower diversion hole (7) and two upper diversion holes (6); the diameter of the lower diversion hole (7) is phi 100mm, the hole direction is horizontally parallel to the tundish outer side wall (1), an included angle between the downward direction and the horizontal direction is 15 degrees, and the distance between the hole center line and the outer side wall (1) is 268 +/-2 mm; the diameter of the upper diversion hole (6) is phi 80mm, the opening direction is horizontally parallel to the tundish outer side wall (1), an included angle between the downward direction and the horizontal direction is 8 degrees, the horizontal distance between the hole center line and the outer side wall (1) is 320 +/-2 mm, and the horizontal distance between the center lines of the two upper diversion holes is 180 +/-2 mm; the vertical distance between the central lines of the upper diversion holes (6) and the lower diversion holes (7) is 300 +/-5 mm, and the vertical distance between the central line of the lower diversion holes (7) and the bottom of the bag is 240 +/-5 mm.
2. The single tundish structure of claim 1, wherein: the number of the current regulators (4) is 1, and the structure of the current regulators is a potter-shaped tank structure.
3. The structure of the single tundish according to claim 1 or 2, wherein: the height of each slag blocking dam (2-1, 2-2, 2-3 and 2-4) is 60 +/-5 mm, and the positions are respectively positioned between the 2 nd stream and the 3 rd stream, between the 3 rd stream and the 4 th stream, between the 5 th stream and the 6 th stream and between the 6 th stream and the 7 th stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489925.5U CN210139053U (en) | 2019-04-11 | 2019-04-11 | Single tundish structure of eight-strand continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489925.5U CN210139053U (en) | 2019-04-11 | 2019-04-11 | Single tundish structure of eight-strand continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210139053U true CN210139053U (en) | 2020-03-13 |
Family
ID=69728850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920489925.5U Expired - Fee Related CN210139053U (en) | 2019-04-11 | 2019-04-11 | Single tundish structure of eight-strand continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210139053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682753A (en) * | 2022-03-25 | 2022-07-01 | 中冶南方连铸技术工程有限责任公司 | Control process for improving three-flow tundish flow field |
-
2019
- 2019-04-11 CN CN201920489925.5U patent/CN210139053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682753A (en) * | 2022-03-25 | 2022-07-01 | 中冶南方连铸技术工程有限责任公司 | Control process for improving three-flow tundish flow field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103506586A (en) | Continuous casting method for improving central shrinkage cavity of small high-carbon steel square billet | |
| CN101733373A (en) | Submerged nozzle for sheet billet continuous casting crystallizer | |
| CN102319891A (en) | Gating system capable of effectively controlling air entrainment and slag entrainment and design method thereof | |
| CN110125379A (en) | A kind of submersed nozzle reducing nozzle blocking | |
| CN210139053U (en) | Single tundish structure of eight-strand continuous casting | |
| CN102554207A (en) | Sliding water gap device capable of preventing vortex | |
| CN203459651U (en) | Submersed nozzle with flow control vanes | |
| CN202291392U (en) | Four-hole submerged nozzle used for sheet billet continuous casting machine | |
| CN102398025B (en) | Double-hole immersed waterslot for flexible thin slab casting (FTSC) crystallizer | |
| CN201136054Y (en) | Submerged type pouring head for continuous casting jobbing sheet blank | |
| CN207479545U (en) | A kind of novel thin strap continuous casting cloth flowing water mouth | |
| CN201385125Y (en) | Sheet billet immersion-type water port | |
| CN102319885A (en) | Continuous casting method and device for double-nozzle cast ultra-thick plate blank | |
| CN201644781U (en) | Crystallizer submersed nozzle for preventing continuous cast slab from rolling slag | |
| CN102303104A (en) | Method for controlling narrow side bulging in continuous casting of ultra-thick plate blanks | |
| CN201565600U (en) | Immersion type water opening used for thin plate blank continuous casting crystallizer | |
| CN110773731A (en) | Improve immersion side nozzle for continuous casting in crystallizer flow field | |
| CN201020531Y (en) | Stopper type fixed diameter nozzle quick-changing casting device | |
| CN217121721U (en) | Seven-flow asymmetric tundish structure | |
| CN201442088U (en) | Combined device with deflective-casting nozzle for large square billets | |
| CN201776413U (en) | Water nozzle of continuous casting tundish | |
| CN201572911U (en) | Submersed nozzle of super wide slab continuous casting mold | |
| CN201020533Y (en) | Stopper type fixed diameter nozzle quick-changing casting device | |
| CN202701326U (en) | An improved tundish and improved flow stabilizers for a billet caster | |
| CN209918882U (en) | Continuous casting crystallizer immersion nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200313 |