阅读说明：本技术 一种中间包自动悬浮器及杂质自动悬浮方法 (Automatic tundish suspension device and automatic impurity suspension method ) 是由 王照华 王然 王炫 王世泰 于 2020-06-30 设计创作，主要内容包括：本发明属于冶金技术领域,公开了一种中间包自动悬浮器除去钢水中杂质并使钢水中的气泡自动悬浮方法,钢水通过大包长水口流入中间包自动悬浮器时,使中间包内的钢液自动形成旋流,通过旋流使钢液在流动过程中形成离心运动,将钢液内杂质悬浮及钢液内气泡上浮,实现自动搅拌钢水除去钢水中杂质。本发明使钢水在流动的过程中形成离心力的作用,对钢水内杂质及气泡进行悬浮,从而达到搅拌钢水的作用,杂质通过刮渣板刮出；大大减少钢液内气泡及夹杂从而提高了钢水纯度,也起到了自动搅拌钢水的作用。从而为提高钢材质量起到很大的作用。因而间接减少钢材砂眼、微裂纹及偏析的作用,大大改进了钢材质量。(The invention belongs to the technical field of metallurgy, and discloses a method for removing impurities in molten steel and automatically suspending bubbles in the molten steel by using an automatic suspension device of a tundish. The invention leads the molten steel to form the action of centrifugal force in the flowing process, and suspends impurities and bubbles in the molten steel, thereby achieving the action of stirring the molten steel, and the impurities are scraped out by the slag scraping plate; greatly reduces bubbles and inclusions in the molten steel, thereby improving the purity of the molten steel and playing a role in automatically stirring the molten steel. Thereby playing a great role in improving the quality of steel. Thereby indirectly reducing the effects of sand holes, microcracks and segregation of the steel and greatly improving the quality of the steel.)

1. The automatic suspending method for removing the impurities in the molten steel for the automatic tundish suspender is characterized by comprising the following steps:

when molten steel flows into the automatic suspension device of the tundish through the ladle long nozzle, the molten steel in the tundish automatically forms a rotational flow, the rotational flow enables the molten steel to form centrifugal motion in the flowing process, impurities in the molten steel are suspended and bubbles in the molten steel float upwards, and the automatic stirring of the molten steel to remove the impurities in the molten steel is realized.

2. The utility model provides an automatic resuspension ware of middle package which characterized in that, the automatic resuspension ware of middle package is provided with:

a tundish;

the bottom of the inner side of the tundish is provided with an impact plate; the upper side of the impact plate is bonded with an automatic suspension device;

the outer wall of the rotator is provided with three through holes at different angles, and the through holes are tangent to the outer wall of the automatic suspension device, so that molten steel flows form clockwise flow or anticlockwise flow in the tundish.

3. The automatic tundish suspension of claim 2, wherein the automatic suspension is pre-formed integrally with the impingement plate.

4. The automatic tundish suspension device according to claim 1, wherein a brick cup is inlaid at the other end of the bottom of the tundish body, and a tundish nozzle is inlaid in the middle of the brick cup.

Technical Field

The invention belongs to the technical field of metallurgy, and particularly relates to a method for removing impurities in molten steel and automatically suspending bubbles in the molten steel by using an automatic suspension device of a tundish.

Background

At present, with the rapid development of scientific technology, higher requirements are put forward on various materials. Particularly, the requirement on the quality of steel materials is higher and higher, and the requirement is more and more urgent along with the development requirement of society on economy and high quality. This requires higher and more stringent requirements on the quality of the steel. Therefore, the requirements on the quality and the purity of the molten steel are more strict than the requirements of the prior art.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the automatic suspension device for the tundish, which further reduces the impurities, bubbles and segregation in the molten steel and achieves the purpose of automatically suspending the impurities and the bubbles in the molten steel in the tundish! Creates a better, more convenient and more economic method for improving the purity of the molten steel in a steel mill, and creates better conditions for better intelligent control of the steel mill!

The invention is realized in this way, an automatic impurity suspension method for a tundish automatic suspension device comprises the following steps:

when molten steel flows into the tundish through the ladle long nozzle, the molten steel flow in the tundish forms a rotational flow when entering the automatic floater, the rotational flow enables the molten steel to form centrifugal motion in the flowing process, and the molten steel is suspended by impurities in the molten steel, floated by bubbles in the molten steel and stirred!

Another object of the present invention is to provide an automatic tundish suspension apparatus comprising: the automatic suspension device comprises a tundish, wherein an impact plate is arranged at the bottom of the inner side of the tundish, and an automatic suspension device is arranged on the impact plate (or the impact plate and the automatic suspension device are prefabricated into a whole);

the automatic suspension device of the middle ladle is positioned above the impact plate, so that the molten steel of the big ladle can flow upwards through the automatic suspension device.

When the large ladle molten steel flows into the middle ladle through the long nozzle, the molten steel firstly passes through the impact plate and then flows out from the given hole in the suspension device, and the molten steel forms rotational flow.

Three through holes are formed in the outer wall of the automatic suspension device at different angles, and the through holes are tangent to the outer wall of the automatic rotator. The purpose of forming clockwise flow or anticlockwise flow in the tundish by the molten steel flow is achieved.

Furthermore, a brick cup is inlaid at the other end of the bottom of the tundish body, and a tundish nozzle is inlaid in the brick cup.

By combining all the technical schemes, the invention has the advantages and effects that: when molten steel flows into the automatic suspension device of the tundish through the ladle long nozzle, the molten steel in the tundish automatically forms a rotational flow, the rotational flow enables the molten steel to form centrifugal motion in the flowing process, impurities in the molten steel are suspended and bubbles in the molten steel float upwards, and the automatic stirring of the molten steel to remove the impurities in the molten steel is realized. The bottom of the inner side of the tundish is provided with an impact plate, and the upper side of the impact plate is provided with an automatic suspension device (or the impact plate and the automatic suspension device are prefabricated into a whole); three through holes are formed in the outer wall of the automatic suspension device at different angles, the through holes are tangent to the outer wall of the automatic suspension device, a brick cup is inlaid at the other end of the bottom of the tundish body, and a tundish nozzle is inlaid in the middle of the brick cup. Impurities and bubbles in the molten steel pass through molten steel flow and form rotational flow in a tundish through a suspension device, so that the molten steel forms the action of centrifugal force in the flowing process to suspend the impurities and the bubbles in the molten steel, thereby achieving the action of stirring the molten steel, and the impurities are scraped out through a slag scraping plate; greatly reduces bubbles and inclusions in the molten steel, thereby improving the purity of the molten steel and playing a role in automatically stirring the molten steel. Thereby playing a great role in improving the quality of steel. Thereby indirectly reducing the sand holes, microcracks and segregation of the steel and greatly improving the quality of the steel

According to the invention, impurities and bubbles in molten steel are enabled to rotate in the tundish through the automatic suspension device to form the action of centrifugal force, and the impurities and bubbles in the molten steel are floated upwards and scraped by the slag scraping plate to play a role in stirring the molten steel. It also plays a great role in improving the quality of steel. Thereby directly reducing the phenomena of sand holes, microcracks and segregation of the steel and achieving the aim of further improving the quality of the steel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below. It is obvious that the drawings described below are only some embodiments of the application, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an automatic tundish suspension provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a rotator provided in an embodiment of the present invention.

Fig. 3 is a schematic diagram of a via structure according to an embodiment of the present invention.

In the figure: 1. a tundish; 2. an automatic suspension device; 3. an impact plate; 4. brick setting; 5. a tundish nozzle; 6. a through hole; 7. and (3) molten steel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In view of the problems in the prior art, the present invention provides an automatic suspension device for a tundish, which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1: a tundish 1; the bottom of the inner side of the tundish 1 is provided with an impact plate 3; the upper side of the impact plate 3 is provided with an automatic rotator 2 (or the impact plate and the automatic suspension device are prefabricated into a whole); a brick cup 4 is embedded at the other end of the bottom of the tundish body 1; a tundish nozzle 5 is embedded in the middle of the brick cup 4.

As shown in fig. 2 and 3, three through holes 6 are formed in the outer wall of the automatic suspension device 2 at different angles, and the through holes 6 are tangential to the outer wall of the automatic suspension device 2. The purpose of forming clockwise flow or anticlockwise flow in the tundish by the molten steel flow is achieved.

The working principle of the invention is as follows:

when the automatic suspension device is used, molten steel flows into a tundish through a ladle long nozzle and enters the automatic suspension device, so that the molten steel forms a rotational flow in the 7 in the process that the molten steel enters the tundish, the molten steel forms the rotational flow in the tundish 1, the molten steel forms centrifugal motion in the flowing process through the rotational flow, impurities and inclusion in the molten steel are suspended, bubbles in the molten steel float upwards, and then slag is removed by the slag scraping plate, so that the purposes of stirring and purifying the molten steel are achieved! Achieving the purposes of rapidness, simplicity, high efficiency and convenient automatic control!

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.