CN111136252A - Continuous casting tundish slag dam - Google Patents
Continuous casting tundish slag dam Download PDFInfo
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- CN111136252A CN111136252A CN201911390746.7A CN201911390746A CN111136252A CN 111136252 A CN111136252 A CN 111136252A CN 201911390746 A CN201911390746 A CN 201911390746A CN 111136252 A CN111136252 A CN 111136252A
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- continuous casting
- slag
- casting tundish
- slag retaining
- 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
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Abstract
一种连铸中间包挡渣坝，包括连铸中间包、挡渣墙、挡渣坝本体和导流孔，所述连铸中间包的内侧两端均设置有挡渣墙，连铸中间包的底部两端均设置有挡渣坝本体，挡渣坝本体包括耐材和钢板，耐材底端设置有导流孔，导流孔内设置有钢板，钢板上端及左右两侧位于耐材内部，连铸中间包两端均设置有凹陷，凹陷的底端设置有中包上水口。本发明的一种连铸中间包挡渣坝，优化连铸中间包内钢水的挡渣工艺，能够更好的实现挡渣目的，实现提高钢铁产品纯净度的目的，为高端制造业提供质量更好、寿命更长、成本更优的坯料。
A continuous casting tundish slag retaining dam, comprising a continuous casting tundish, a slag retaining wall, a slag retaining dam body and a diversion hole, the inner ends of the continuous casting tundish are provided with slag retaining walls, and the continuous casting tundish A slag retaining dam body is provided at both ends of the bottom of the slag retaining dam. The slag retaining dam body includes a refractory material and a steel plate. The bottom end of the refractory material is provided with a diversion hole, and the diversion hole is provided with a steel plate. The upper end and left and right sides of the steel plate are located inside the refractory material The two ends of the continuous casting tundish are provided with depressions, and the bottom end of the depression is provided with a tundish nozzle. The continuous casting tundish slag retaining dam of the invention optimizes the slag retaining process of molten steel in the continuous casting tundish, can better achieve the purpose of retaining slag, achieve the purpose of improving the purity of steel products, and provide high-end manufacturing industries with better quality Good, longer life, better cost blanks.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a continuous casting tundish slag dam which is suitable for controlling inclusions in the early casting period of molten steel in a tundish and improving the purity of a continuous casting billet.
Background
With the rapid development of high-end manufacturing industries such as automobiles, wind power, petroleum, nuclear power, household appliances and the like in China, the quality requirements on raw materials are higher and higher, especially the internal quality requirements of products are higher, and continuous casting of high-purity casting blanks becomes an important current topic.
Tundish slag blocking is an important technology of tundish metallurgy, and is widely applied due to the obvious effects of improving the quality of casting blanks and stabilizing production. The slag blocking dam has the main functions of blocking slag, improving the purity of a casting blank and preventing slag and other impurities from being drawn into the crystallizer and being solidified into the casting blank when molten steel poured into a tundish flows into the crystallizer to cause the defects of slag inclusion and impurity inclusion quality of the casting blank; and secondly, the flowing state (collectively called as a flow field) of the molten steel in the tundish is improved, so that the floating removal of the inclusion is accelerated. The slag blocking function is the most original and basic function of dam design, and if the basic functions are not realized, the floating effect of inclusions in a molten steel flow field is not improved, so that the slag blocking effect and the optimization of function realization become the consensus and the effort direction of a plurality of scientific researchers and first-line science and technology workers of steel enterprises in the metallurgy field.
By referring to relevant data at home and abroad, many iron and steel enterprises at home and abroad still adopt the traditional slag dam at present, and no enterprise or scientific research institution can better solve the problem that slag and other impurities enter a pouring area at the early stage of casting to cause slag inclusion and impurities inclusion of a casting blank.
Disclosure of Invention
The invention aims to provide a slag blocking dam for a continuous casting tundish, which optimizes the slag blocking process of molten steel in the continuous casting tundish, can better achieve the purpose of slag blocking, achieves the purpose of improving the purity of steel products, and provides a blank with better quality, longer service life and better cost for high-end manufacturing industry.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a package slag dam in middle of continuous casting, package, slag wall, slag dam body and water conservancy diversion hole in the middle of including continuous casting, the inboard both ends of package all are provided with slag wall in the middle of the continuous casting, and the bottom both ends of package all are provided with slag dam body in the middle of the continuous casting, and slag dam body includes resistant material and steel sheet, and resistant material bottom is provided with the water conservancy diversion hole, and the downthehole steel sheet that is provided with of water conservancy diversion, inside steel sheet upper end and the left and right sides were located resistant material, package both ends all were provided with sunkenly in the middle of the continuous casting, and the mouth.
Furthermore, the number of the flow guide holes is one, the flow guide holes are semicircular, and the radius of the flow guide holes is one third of the height of the refractory material.
Furthermore, the steel plate is made of Q235B, and the thickness of the steel plate is 12-15 mm.
The invention has the following beneficial effects: according to the continuous casting tundish slag blocking dam, the semicircular flow guide hole is formed in the middle area of the bottom of the slag blocking dam body, the shape can guarantee the strength of the refractory material against the scouring of steel flow to the maximum degree, the radius of the flow guide hole is one third of the height of the slag blocking dam body, the steel plate is arranged in the flow guide hole, the upper end and the left side and the right side of the steel plate are located inside the refractory material, the intercepting effect of the flow guide hole can be achieved just in time, in order to guarantee that the steel plate is not knocked down by the steel flow, the design thickness of the steel plate needs to guarantee that the initial steel flow mixed with slag is not melted down in a short time when the initial steel flow comes, and when the steel flow reaches a certain depth and does not pass through the slag blocking dam, the steel plate needs to be melted down just so that the lower pure steel flow can flow into.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of a dam;
fig. 3 is a schematic structural view of the steel plate of fig. 2.
Wherein: 1. the continuous casting tundish comprises a continuous casting tundish body 2, a slag blocking wall 3, a slag blocking dam body 4, a flow guide hole 5, a refractory material 6, a steel plate 7, a recess 8 and a tundish water feeding port.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the scope of the present invention is not limited to these examples. All changes, modifications and equivalents that do not depart from the spirit of the invention are intended to be included within the scope thereof.
As shown in fig. 1 and 2, a package slag-stopping dam in middle of continuous casting, package 1, slag-stopping wall 2, slag-stopping dam body 3 and water conservancy diversion hole 4 in the middle of including continuous casting, the inboard both ends of package 1 all are provided with slag-stopping wall 2 in the middle of the continuous casting, and the bottom both ends of package 1 all are provided with slag-stopping dam body 3 in the middle of the continuous casting, and slag-stopping dam body 3 includes resistant material 5 and steel sheet 6, and resistant material 5 bottom is provided with water conservancy diversion hole 4, is provided with steel sheet 6 in the water conservancy diversion hole 4, and 6 upper ends of steel sheet and left and right sides are located resistant material 5 inside, and package 1 both ends all are provided with sunken 7 in the middle of the continuous casting.
The number of the flow guide holes 4 is one, the flow guide holes 4 are semicircular, and the radius of each flow guide hole 4 is one third of the height of the refractory material 5.
The steel plate 6 is made of Q235B, and the thickness of the steel plate 6 is 12-15 mm.
When the continuous casting tundish works, molten steel is poured into the middle of the two slag blocking walls 2 on the inner side of the continuous casting tundish 1, the molten steel flows out from the bottom of the slag blocking walls 3 to reach the slag blocking dam body 3, the molten steel melts the steel plate 6 before the molten steel level does not reach the upper edge of the refractory material 5 after the molten steel level is higher than the highest point of the flow guide hole 4, so that a flow guide channel of pure molten steel is formed, and pure high water flows into the recess 7 through the flow guide hole 4 and flows out through the tundish water inlet 8.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390746.7A CN111136252A (en) | 2019-12-30 | 2019-12-30 | Continuous casting tundish slag dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390746.7A CN111136252A (en) | 2019-12-30 | 2019-12-30 | Continuous casting tundish slag dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111136252A true CN111136252A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390746.7A Pending CN111136252A (en) | 2019-12-30 | 2019-12-30 | Continuous casting tundish slag dam |
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| CN (1) | CN111136252A (en) |
Cited By (2)
| 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 |
| CN116713463A (en) * | 2023-05-09 | 2023-09-08 | 金川镍钴研究设计院有限责任公司 | A molten steel purification device and molten steel purification method used in the production of K418B high-temperature master alloy |
Citations (8)
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|---|---|---|---|---|
| KR20060102803A (en) * | 2005-03-25 | 2006-09-28 | 주식회사 포스코 | Dam structure to block slag inflow into tundish nozzle |
| CN202185568U (en) * | 2011-06-29 | 2012-04-11 | 鞍钢股份有限公司 | A new type of flow control device for double-strand slab continuous casting tundish |
| CN202377519U (en) * | 2011-11-23 | 2012-08-15 | 福建三钢闽光股份有限公司 | Slag blocking dam with right-angled flow baffles for flow control in slab tundish |
| CN203343422U (en) * | 2013-07-01 | 2013-12-18 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag stop dam |
| CN204934587U (en) * | 2015-08-24 | 2016-01-06 | 重庆海德冶金材料有限责任公司 | Device for controlling flow of ladle |
| CN204975299U (en) * | 2015-08-04 | 2016-01-20 | 方大特钢科技股份有限公司 | Steelmaking continuous casting is with middle package pushing off slag wall |
| CN206296443U (en) * | 2016-08-27 | 2017-07-04 | 上海利尔耐火材料有限公司 | A kind of slag blocking dam of middle ladle with pod apertures baffle plate |
| CN208528079U (en) * | 2018-06-19 | 2019-02-22 | 上海利尔耐火材料有限公司 | A kind of continuous casting production dam |
-
2019
- 2019-12-30 CN CN201911390746.7A patent/CN111136252A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060102803A (en) * | 2005-03-25 | 2006-09-28 | 주식회사 포스코 | Dam structure to block slag inflow into tundish nozzle |
| CN202185568U (en) * | 2011-06-29 | 2012-04-11 | 鞍钢股份有限公司 | A new type of flow control device for double-strand slab continuous casting tundish |
| CN202377519U (en) * | 2011-11-23 | 2012-08-15 | 福建三钢闽光股份有限公司 | Slag blocking dam with right-angled flow baffles for flow control in slab tundish |
| CN203343422U (en) * | 2013-07-01 | 2013-12-18 | 莱芜钢铁集团有限公司 | Continuous casting tundish slag stop dam |
| CN204975299U (en) * | 2015-08-04 | 2016-01-20 | 方大特钢科技股份有限公司 | Steelmaking continuous casting is with middle package pushing off slag wall |
| CN204934587U (en) * | 2015-08-24 | 2016-01-06 | 重庆海德冶金材料有限责任公司 | Device for controlling flow of ladle |
| CN206296443U (en) * | 2016-08-27 | 2017-07-04 | 上海利尔耐火材料有限公司 | A kind of slag blocking dam of middle ladle with pod apertures baffle plate |
| CN208528079U (en) * | 2018-06-19 | 2019-02-22 | 上海利尔耐火材料有限公司 | A kind of continuous casting production dam |
Cited By (2)
| 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 |
| CN116713463A (en) * | 2023-05-09 | 2023-09-08 | 金川镍钴研究设计院有限责任公司 | A molten steel purification device and molten steel purification method used in the production of K418B high-temperature master alloy |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200512 |
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| RJ01 | Rejection of invention patent application after publication |