阅读说明：本技术 一种能抑制涡流的钢包 (Steel ladle capable of inhibiting eddy current ) 是由 贾祥超 赵艳宇 毕泽阳 赵丽明 杨晓艳 史志强 安永超 邵俊宁 于 2020-12-11 设计创作，主要内容包括：本发明涉及一种能抑制涡流的钢包,属于金属材料与加工技术领域,解决了有技术中的钢包结构会剩余较多钢包铸余的技术问题。该能抑制涡流的钢包包括包体和块体,包体的底壁上设有出钢孔,块体连接在包体的包壁上并伸入包体内部,并且块体位于包体中涡流旋转的路径上,具体地,在包体的底部设有围圈,围圈的外环壁紧贴包体的内环壁,块体设置在围圈上。通过上述结构,块体可以对包体中产生的涡流旋转起到抑制作用,以改变钢包使用过程中产生的回旋涡流的状态,从而改变回旋深坑的临界高度,进而降低铸余量,因此,本发明提供的钢包使用过程中产生的钢包铸余更少,以提高钢水的收得率,提高产钢企业的利润。(The invention relates to a steel ladle capable of inhibiting eddy current, belongs to the technical field of metal materials and processing, and solves the technical problem that a steel ladle structure in the prior art can have more steel ladle casting residues. This can restrain ladle of vortex includes inclusion and block, is equipped with out the steel hole on the diapire of inclusion, and the block is connected on the package wall of inclusion and stretch into inside the inclusion to the block is located the rotatory route of vortex in the inclusion, specifically, is equipped with the enclosure in the bottom of inclusion, and the inner ring wall of inclusion is hugged closely to the outer rampart of enclosure, and the block setting is on the enclosure. Through the structure, the block body can play a role in inhibiting vortex rotation generated in the ladle body so as to change the state of a whirling vortex generated in the using process of the steel ladle, change the critical height of the whirling deep pit and further reduce the casting allowance, so that less steel ladle casting residue is generated in the using process of the steel ladle, the yield of molten steel is improved, and the profit of steel production enterprises is improved.)

1. A ladle capable of inhibiting eddy current is characterized in that: the steel outlet structure comprises a bag body and a block body, wherein a steel outlet hole is formed in the bottom wall of the bag body, the block body is connected to the bag wall of the bag body and extends into the bag body, and the block body is located on a path of vortex rotation in the bag body.

2. A ladle capable of suppressing eddy currents according to claim 1, wherein: the bottom of the bag body is provided with an enclosure, the outer ring wall of the enclosure is tightly attached to the inner ring wall of the bag body, and the block body is arranged on the enclosure.

3. A ladle capable of suppressing eddy currents according to claim 2, wherein: the enclosure is built by refractory bricks.

4. A ladle capable of suppressing eddy currents according to claim 3, wherein: the center of the steel outlet hole is not coincident with the center of the bottom wall of the bag body, and the block body is arranged on the near-center point of the surrounding ring relative to the center of the steel outlet hole.

5. A ladle capable of suppressing eddy currents according to claim 4, wherein: one end of the block body is embedded in the surrounding ring, the other end of the block body extends out of the inner annular wall of the surrounding ring along the radial direction of the surrounding ring, and the width of the block body is gradually reduced from one end to the other end.

6. A ladle capable of suppressing eddy currents according to claim 5, wherein: the cross section of the block body is of an arc-shaped structure, the arc-shaped structure is provided with a long arc edge and a short arc edge, and the long arc edge is embedded into the enclosure.

7. A ladle capable of suppressing eddy currents according to claim 5, wherein: the length of the block body extending out of the inner ring wall of the surrounding ring is at least 20 mm.

8. A ladle capable of suppressing eddy currents according to any one of claims 2 to 7, wherein: the top end face of the block body is flush with the top end face of the enclosure.

9. A ladle capable of suppressing eddy currents as set forth in claim 8, wherein: and a gap is formed between the end surface of the bottom end of the block body and the bottom wall of the bag body.

10. A ladle capable of suppressing eddy currents as defined in claim 9, wherein: the width of the gap is L, and L is more than or equal to 0 and less than 10 mm.

Technical Field

The invention belongs to the technical field of metal materials and processing, and particularly relates to a steel ladle capable of inhibiting eddy current.

Background

The ladle is a high-temperature container used for containing molten steel in steelmaking-continuous casting production. The steel ladle is mainly used for storing and transferring molten steel, in the continuous casting process, the molten steel flows out of a steel tapping hole of the steel ladle and enters a crystallizer through a tundish, after the steel ladle is cast, the molten steel in the steel ladle is gradually reduced along with the casting, the liquid level of the molten steel is gradually reduced, a confluence vortex is formed above the steel tapping hole at the bottom of the steel ladle, when the liquid level is lowered to a certain height, the confluence vortex is communicated with a steel-slag interface and the steel tapping hole, and a high-temperature steel slag coil is mixed together to flow out and enter the tundish, so that the molten steel is polluted, the quality of a steel billet is influenced, and the steel ladle.

The steel ladle slag is one of important sources of inclusions in steel, the quality of certain steel types with extremely strict requirements on the inclusions is seriously influenced, in order to reduce the influence of the steel ladle slag on the quality of molten steel, slag detection rings are adopted by many steel mills in China at present to detect the slag discharging condition in the pouring process, and a certain amount of steel ladle casting residue is usually reserved at the last stage of steel ladle pouring. Under the specific condition of slag removal detection, the smaller the slag removal amount is, the more the steel ladle casting residue is, and the lower the yield of molten steel is.

At present, the bottoms of domestic and foreign steel ladles are mostly constructed in a plane, and a basin-type ladle bottom is adopted in individual steel mills, namely, a steel outlet hole is arranged at the lowest area of the ladle bottom, so that the ladle casting allowance is reduced in a mode of increasing the height of a confluence vortex in a phase-changing manner, but more ladle casting allowance still exists.

Disclosure of Invention

The invention provides a steel ladle capable of inhibiting eddy current, which is used for solving the technical problem that a steel ladle structure in the prior art can have more steel ladle casting residues.

The invention is realized by the following technical scheme: the steel ladle capable of inhibiting the eddy current comprises a ladle body and a block body, wherein a steel outlet hole is formed in the bottom wall of the ladle body, the block body is connected to the wall of the ladle body and extends into the ladle body, and the block body is located on the eddy current rotating path in the ladle body.

Further, in order to better realize the invention, the bottom of the bag body is provided with an enclosure, the outer ring wall of the enclosure is tightly attached to the inner ring wall of the bag body, and the block body is arranged on the enclosure.

Further, in order to better realize the invention, the enclosure is built by refractory bricks.

Further, in order to better realize the invention, the center of the steel outlet hole is not coincident with the center of the bottom wall of the bag body, and the block body is arranged on the periphery at a near-center point relative to the center of the steel outlet hole.

Further, in order to better implement the present invention, one end of the block is embedded in the enclosure, the other end of the block protrudes from the inner annular wall of the enclosure in the radial direction of the enclosure, and the width of the block gradually decreases from one end to the other end.

Further, in order to better realize the invention, the cross section of the block body is in a circular arc structure, the circular arc structure is provided with a long arc edge and a short arc edge, and the long arc edge is embedded into the enclosure.

Further, in order to better implement the invention, the length of the block body extending out of the inner annular wall of the enclosure is at least 20 mm.

Further, in order to better implement the present invention, the top end face of the block is flush with the top end face of the enclosure.

Further, in order to better realize the invention, a gap is formed between the bottom end surface of the block body and the bottom wall of the bag body.

Further, in order to better realize the invention, the width of the gap is L, and L is more than or equal to 0 and less than 10 mm.

Compared with the prior art, the invention has the following beneficial effects:

the ladle capable of inhibiting the eddy current provided by the invention comprises a ladle body and a block body, wherein the ladle body comprises a ladle wall and a ladle bottom wall for containing molten steel, a steel outlet hole is formed in the bottom wall of the ladle body so as to facilitate the outflow of the molten steel, and the block body is connected to the ladle wall of the ladle body and extends into the ladle body, so that the block body is inserted into the molten steel in the ladle body, namely the block body is inserted into the eddy current generated when the molten steel flows out from the steel outlet hole, and the block body is blocked on a path along which the fluid rotates because the eddy current is a rotating fluid, thereby inhibiting the eddy current rotation, therefore, the eddy current generated in the ladle provided by the invention is smaller, in other words, the state of the whirling eddy current generated in the ladle is changed through the structure, so that the critical height of the whirling deep pit is changed, and the casting allowance is reduced, therefore, the ladle provided by the invention generates, so as to improve the yield of the molten steel and the profit of steel production enterprises.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic top view of a ladle capable of suppressing eddy current in the present application;

fig. 2 is a schematic cross-sectional view of a ladle capable of suppressing eddy current in the present application.

In the figure:

1-inclusion;

2-block body;

3-enclosure;

4-steel outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Example 1:

the embodiment provides a ladle capable of suppressing eddy current, which is used for solving the technical problem that a ladle structure in the prior art can remain more ladle casting residues, and particularly, even if the ladle structure of a steel tapping hole arranged at the lowest region of a ladle bottom in the prior art does not change the whirling state of the eddy current in the ladle, a larger eddy current still can be generated in the ladle, so that more casting residues can be finally remained in the ladle.

The ladle capable of inhibiting the eddy current comprises a ladle body 1 and a block body 2, wherein the ladle body 1 consists of a ladle wall and a ladle bottom wall and is used for containing molten steel, a steel outlet hole 4 is formed in the ladle bottom wall of the ladle body 1, and the molten steel can flow out of the ladle body 1 from the steel outlet hole 4.

The block 2 is of a block structure, and the block 2 is connected to the ladle wall of the ladle body 1 and extends into the ladle body 1, so that the block 2 is actually inserted into the molten steel in the ladle body 1, and the block 2 is positioned on a path of vortex rotation in the ladle body 1, and therefore, the block 2 is blocked on the path of vortex rotation to play a role in inhibiting vortex rotation, and therefore, the vortex generated in the ladle provided by the invention is smaller, in other words, the state of the whirling vortex generated in the ladle is changed through the structure, so that the critical height of the whirling deep pit is changed, and the casting allowance is reduced.

As a more preferable embodiment of this embodiment, the ladle capable of suppressing eddy current provided in this embodiment further includes the enclosure 3, the enclosure 3 is disposed inside the enclosure 1, and the outer annular wall of the enclosure 3 is closely attached to the inner annular wall of the enclosure 1, the block 2 is disposed on the enclosure 3, so that the block 2 is connected to the inner wall of the enclosure 1 through the enclosure 3, and the block 2 is also located at a position close to the bottom wall of the enclosure 1, that is, the block 2 is disposed at a position close to the steel outlet hole 4, and since the eddy current is usually formed above the steel outlet hole 4, the eddy current can be suppressed better by this arrangement. Moreover, the safety and the stability of the ladle capable of inhibiting the eddy current provided by the embodiment in the using process can be ensured through the action of the surrounding ring 3. As another embodiment of this embodiment, the block 2 may be directly disposed on the inner wall of the bag 1, for example, in the casting process of the bag 1, the block 2 is cast and molded on the inner wall of the bag 1.

As a best mode of the embodiment, the enclosure 3 in the embodiment is built by refractory bricks and is adhered to the inner wall of the bag body 1 by cement mortar in the building process, so that the construction is simple and convenient. Of course, the enclosure 3 can also be formed by casting or casting, and is connected to the inner wall of the bag body 1 by welding or masonry. Most preferably, the height of the enclosure 3 is not less than 400 mm.

As a more preferable embodiment of this embodiment, in this embodiment, the steel outlet hole 4 is a circular hole, the bottom wall of the bag body 1 is a round cake-shaped structure, the center of the steel outlet hole 4 does not coincide with the center of the bottom wall of the bag body 1, that is, the steel outlet hole 4 is eccentrically disposed on the bottom wall of the bag body 1, at this time, a near center point and a far center point exist on the enclosure 3 relative to the center of the steel outlet hole 4, the near center point is a position on the enclosure 3 with the shortest horizontal distance from the center of the steel outlet hole 4, and the far center point is a position on the enclosure 3 with the longest horizontal distance from the center of the steel outlet hole 4. The block 2 is arranged at the near-center point to achieve better eddy current suppression effect.

As a best mode of the embodiment, one end of the block 2 in the embodiment is embedded in the enclosure 3, specifically, during the building process of the enclosure 3, one end of the block 2 is built in the enclosure 3, and the other end of the block 2 extends out of the inner annular wall of the enclosure 3 along the radial direction of the enclosure 3, so that the block 2 can be stably connected to the enclosure 3. Of course, the block 2 can also be connected to the enclosure 3 by means of a bayonet connection or a snap connection. In addition, the width of the block 2 is gradually reduced from one end to the other end, and the enclosure 3 is also a circle because the enclosure wall of the bag body 1 is a generally cylindrical wall body, and the block 2 is set to be in the shape, so that the shape of a water column formed by molten steel in the enclosure 3 can be more suitable, and the effect of inhibiting eddy current is better achieved. Of course, the block 2 may be a block structure of any other shape. Preferably, the block 2 has a cross section in the form of a circular arc having a long arc edge embedded in the enclosure 3 and a short arc edge extending into the inner annular hole of the enclosure 3.

As an implementation manner of this embodiment, the length of the block 2 extending out of the inner annular wall of the enclosure 3 in this embodiment is at least 20mm, that is, the block 2 protrudes out of the inner annular wall of the enclosure 3 by at least 20mm, so as to achieve a good effect of suppressing the eddy current.

As a specific implementation manner of this embodiment, in the ladle capable of suppressing the eddy current provided in this embodiment, the top end surface of the block 2 is flush with the top end surface of the enclosure 3, so as to ensure the safety and stability of the ladle during use. A gap is formed between the end face of the bottom end of the block body 2 and the bottom wall of the bag body 1, namely the block body 2 is suspended relative to the bottom wall of the bag body 1, and the width of the gap is L which is not less than 0 and less than 10 mm.

It should be noted that, in this embodiment, the block 2 may be a refractory brick or a structural member made of metal having a melting point higher than that of steel.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.