CN216325066U - Tundish current stabilizer mounting structure for preventing molten steel from carbureting - Google Patents
Tundish current stabilizer mounting structure for preventing molten steel from carbureting Download PDFInfo
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- CN216325066U CN216325066U CN202122594288.8U CN202122594288U CN216325066U CN 216325066 U CN216325066 U CN 216325066U CN 202122594288 U CN202122594288 U CN 202122594288U CN 216325066 U CN216325066 U CN 216325066U
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Abstract
The utility model discloses a tundish current stabilizer mounting structure for preventing molten steel from being carburized, which comprises a current stabilizer body, a base and slopes, wherein the side wall of the top end of the current stabilizer body is uniformly provided with a notch, the current stabilizer body is connected with a tundish through the base, and the slopes are arranged on two sides of the current stabilizer body. This prevent middle package current stabilizer mounting structure of molten steel carburation, setting through the base, can be firmly fixed in suitable position department in the middle package of current stabilizer body, in the use, the accident that influences normal use function such as aversion or the drift of current stabilizer can not take place, the reliability of current stabilizer body has been improved, through the grooved setting, can improve the flow field of molten steel, make the flow that the molten steel can be steady, reduce the scouring of molten steel to the current stabilizer body, improve the wearability of current stabilizer body, the life of extension current stabilizer body.
Description
Technical Field
The utility model belongs to the technical field of continuous casting machines, and particularly relates to a tundish current regulator mounting structure for preventing molten steel from being carburized.
Background
The carbon content in ultra-low carbon steels is usually very low, and some steel grades, such as IF steels, non-oriented silicon steels, etc., even require a carbon content below 30ppm and the lower the better. In the production of these steel grades, on the one hand, the carbon content in the steel is reduced to a specified range by means of an RH decarburization process, and on the other hand, the control of the process carburization is required, especially in the continuous casting production process, to be not more than 5 ppm. The tundish as a container for bearing molten steel is one of the key links for controlling the carburetion.
The flow stabilizer in the continuous casting tundish is important flow control equipment in the tundish, is arranged right below the long nozzle of the tundish and mainly used for buffering molten steel injection of a steel ladle, inhibiting turbulent kinetic energy and protecting a tundish lining; meanwhile, a rotational flow is formed in the pouring area of the tundish, the flow field of the molten steel is optimized, and the removal rate of inclusions in the molten steel is improved, so that the tundish current stabilizer is one of key components in the tundish. When the tundish current stabilizer is installed in the crystallizer, the tundish current stabilizer needs to be fixed so as to control the displacement and even floating of the current stabilizer in the pouring process and lose the due effect of the current stabilizer. The installation process of the tundish current stabilizer comprises the following steps: and hoisting the current stabilizer qualified in appearance inspection into a required designated position, burying the edge of the current stabilizer into a slope by using a dry material, and solidifying the dry material in the preheating process of the tundish to play a role in fixing.
The tundish lining used in the production of ultra low carbon steel is usually of a very low carbon content (less than 0.8%) material which has been found to meet the carbon pick-up requirements by theoretical calculations and in production practice. However, the dry material for fixing the tundish current stabilizer has high carbon content (usually over 3%) and large usage amount (usually about 300 Kg), so that the molten steel is more carburized in the production of ultra-low carbon steel, and even the carbon content of the molten steel exceeds the standard.
Therefore, the fixing method of the conventional tundish current stabilizer is optimized, so that the fixing method can meet the production requirement of the ultra-low carbon steel and becomes a problem to be solved urgently in the production of the ultra-low carbon steel. The utility model provides a fixing scheme of a tundish current stabilizer.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the installation structure of the tundish current stabilizer for preventing the recarburization of molten steel, which has the advantages of simple scheme, convenient construction, capability of playing a role in fixing the tundish current stabilizer and meeting the requirement of ultra-low carbon steel on recarburization, and solves the problems in the background art.
The utility model provides the following technical scheme: a tundish current stabilizer mounting structure for preventing molten steel from carbureting comprises a current stabilizer body, a base and a slope, wherein the side wall of the top end of the current stabilizer body is uniformly provided with a slot, the flow field of the molten steel can be improved, the molten steel can flow stably, the scouring of the molten steel on the current stabilizer body is reduced, the wear resistance of the current stabilizer body is improved, the service life of the current stabilizer body is prolonged, the current stabilizer body is connected with the tundish through the base, through the arrangement of the base, the current stabilizer body can be firmly fixed at a proper position in the tundish, accidents of the current stabilizer such as displacement or drifting and the like which influence the normal use function can not occur in the use process, the reliability of the current stabilizer body is improved, the both sides of current regulator body are equipped with the slope, through the setting on slope, are convenient for be under construction, and can improve the steadiness of current regulator body.
Furthermore, the slope and the base are both made of spray coating with carbon content less than 0.8%, the slope of the top of the slope is 13-17 degrees, the carbon content of the slope is less than 0.8% through the arrangement of the slope and the base, the carbon content of the molten steel is controlled to be less than 3ppm, the production requirement of ultra-low carbon steel can be met, the construction is convenient, and the spray repairing material can be sprayed and repaired into the slope by a spray repairing machine, so that the construction is convenient.
Further, the length of the current stabilizer body embedded in the base is 110 +/-10 mm.
Furthermore, the edges of the slots are provided with fillets, so that the scouring of molten steel on the current stabilizer is reduced.
Has the advantages that:
1. according to the installation structure of the tundish current stabilizer for preventing molten steel from being carburized, the spray coating is adopted for fixing the tundish current stabilizer, the carbon content is less than 0.8%, the molten steel carburization amount is controlled to be below 3ppm, the production requirement of ultra-low carbon steel can be met, and the spray repairing material is sprayed and repaired into a slope by using a spray repairing machine, so that the construction is convenient.
2. This prevent middle package current stabilizer mounting structure of molten steel carburation, setting through the base, can be firmly fixed in suitable position department in the middle package of current stabilizer body, in the use, the accident that influences normal use function such as aversion or the drift of current stabilizer can not take place, the reliability of current stabilizer body has been improved, through the grooved setting, can improve the flow field of molten steel, make the flow that the molten steel can be steady, reduce the scouring of molten steel to the current stabilizer body, improve the wearability of current stabilizer body, the life of extension current stabilizer body.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
fig. 2 is a schematic view of the installation of the current stabilizer body with the structure of the present invention.
In the figure: 1. a current stabilizer body; 2. a slope; 3. grooving; 4. a base; 5. and (4) pouring a middle bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a tundish current stabilizer mounting structure for preventing molten steel from being carburized includes a current stabilizer body 1, a base 4 and slopes 2, wherein the side wall of the top end of the current stabilizer body 1 is uniformly provided with slots 3, the arrangement of the slots 3 can improve the flow field of molten steel, so that the molten steel can stably flow, reduce the scouring of the molten steel on the current stabilizer body 1, improve the wear resistance of the current stabilizer body 1, and prolong the service life of the current stabilizer body 1, the current stabilizer body 1 is connected with a tundish 5 through the base 4, the arrangement of the base 4 can firmly fix the current stabilizer body 1 at a proper position in a tundish, in the using process, accidents such as displacement or drifting of the current stabilizer and the like which affect the normal use function can not occur, so as to improve the reliability of the current stabilizer body 1, the slopes 2 are arranged on two sides of the current stabilizer body 1, through the setting of slope 2, the construction of being convenient for, and can improve the steadiness of current regulator body 1.
The slope 2 and the base 4 are both made of spray coating with carbon content less than 0.8%, the slope at the top of the slope 2 is 13-17 degrees, the carbon content of the slope 2 is less than 0.8% through the arrangement of the slope 2 and the base 4, the molten steel carburetion amount is controlled below 3ppm, the production requirement of ultra-low carbon steel can be met, the construction is convenient, and the spray repairing material can be sprayed and repaired into the slope by a spray repairing machine, so that the construction is convenient.
The length of the current stabilizer body 1 embedded in the base 4 is 110 +/-10 mm.
The edges of the open slots 3 are provided with round corners, so that the scouring of molten steel on the current stabilizer is reduced.
The working principle is as follows: during the use, will accord with the condition and wait that the pouring basket of spraying hangs to the gunning rack, install slag wall and dam and with the fixed back of spray paint, hang the qualified pouring basket current stabilizer of visual inspection and put to the position that the drawing required, place on base 4, then carry out the spraying operation at the outward flange of current stabilizer with the flush coater, form the slope of fixed current stabilizer, slope 2 is 110 + -10 mm with current stabilizer outer edge buried depth, and the slope is 15 + -2 to with the working layer seamless connection of follow-up spraying.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a prevent middle package current regulator mounting structure of molten steel carburation, includes current regulator body (1), base (4) and slope (2), its characterized in that: fluting (3) have evenly been seted up to the lateral wall on current regulator body (1) top, current regulator body (1) is connected with middle package (5) through base (4), the both sides of current regulator body (1) are equipped with slope (2).
2. The tundish current regulator mounting structure for preventing molten steel from carbureting of claim 1, wherein: the slope (2) and the base (4) are both made of spray coating with carbon content less than 0.8%, and the slope of the top of the slope (2) is 13-17 degrees.
3. The tundish current regulator mounting structure for preventing molten steel from carbureting of claim 1, wherein: the length of the current stabilizer body (1) embedded in the base (4) is 110 +/-10 mm.
4. The tundish current regulator mounting structure for preventing molten steel from carbureting of claim 1, wherein: the edges of the open slots (3) are provided with round corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594288.8U CN216325066U (en) | 2021-10-27 | 2021-10-27 | Tundish current stabilizer mounting structure for preventing molten steel from carbureting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122594288.8U CN216325066U (en) | 2021-10-27 | 2021-10-27 | Tundish current stabilizer mounting structure for preventing molten steel from carbureting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216325066U true CN216325066U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122594288.8U Active CN216325066U (en) | 2021-10-27 | 2021-10-27 | Tundish current stabilizer mounting structure for preventing molten steel from carbureting |
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| Country | Link |
|---|---|
| CN (1) | CN216325066U (en) |
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2021
- 2021-10-27 CN CN202122594288.8U patent/CN216325066U/en active Active
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