CN219254065U

CN219254065U - Movable cover of crystallizer

Info

Publication number: CN219254065U
Application number: CN202223265242.2U
Authority: CN
Inventors: 雷阳伟; 黎建全; 杨文中; 石鹏; 费纪顺
Original assignee: Pangang Group Panzhihua Steel and Vanadium Co Ltd
Current assignee: Pangang Group Panzhihua Steel and Vanadium Co Ltd; Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd; Pangang Group Xichang Steel and Vanadium Co Ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-27
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to the field of continuous casting crystallizers, and particularly discloses a movable cover of a crystallizer, which comprises a cover plate, wherein the cover plate is used for protecting the crystallizer, casting holes are formed in the cover plate, n-shaped flanges are arranged at two ends of the cover plate, a first limit flange and a second limit flange which are positioned at the outer sides of the casting holes are sequentially arranged on the lower surface of the cover plate, the first limit flange and the second limit flange are used for being matched with the upper part of the crystallizer, a first groove is formed between the first limit flange and the cover plate, and the first groove is used for filling an asbestos net and is fireproof and sealed. The movable cover meets the protection and vibration requirements of the crystallizer, and simultaneously can control gaps between the crystallizer and the movable cover to be very small, so that the quality and the processing efficiency of castings are improved.

Description

Movable cover of crystallizer

Technical Field

The utility model relates to the field of continuous casting crystallizers, in particular to a movable cover of a crystallizer.

Background

Compared with the traditional mould steel injection process, the continuous casting has the advantages of simplified production process, high metal yield, low energy consumption, high automation degree, high productivity, good casting blank quality and the like, the continuous casting crystallizer is a core part of continuous casting equipment, the movable cover of the crystallizer is used as a protection device for an inlet of the continuous casting crystallizer, and in the continuous casting process, if the movable cover of the crystallizer is unreasonable to manufacture, if a gap between the movable cover and a connecting part of the crystallizer is large, water vapor on the upper part of the crystallizer leaks easily from the gap, the water vapor leaks to cause moist permeation of casting powder of the crystallizer, the moisture of the casting powder can cause the exceeding of the standard of casting blank H, and even the crystallizer steel leakage accident, molten steel explosion and other large safety risks can be caused.

The existing movable cover is simple in structure, and the gaps between the movable cover and the crystallizer installation connecting part are too large after the movable cover is operated for a period of time due to vibration of the crystallizer, or the movable cover is locked on the crystallizer through a fixing bolt or another limiting tool after the movable cover is opened each time, so that the gaps between the movable cover and the crystallizer meet certain requirements.

Disclosure of Invention

The utility model aims to provide a movable cover structure of a crystallizer, which can control gaps between the crystallizer and the movable cover to be very small while meeting the protection and vibration requirements of the crystallizer, and improve the quality and the processing efficiency of castings.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a crystallizer movable cover, includes the apron, and the apron is used for protecting the crystallizer, be provided with the pouring hole on the apron, the both ends of apron are provided with "n" shape flange, the apron lower surface has set gradually first spacing flange and the second spacing flange that is located the pouring hole outside, and first spacing flange and second spacing flange are used for matcing with crystallizer upper portion, just be formed with first recess between first spacing flange and the apron, first recess is used for filling the asbestos net, fire prevention is sealed.

In a further scheme, the end part of the cover plate extends into an n-shaped groove of the n-shaped flange, and the n-shaped groove is used for being connected with a protective cover on the outer side of the crystallizer in a matching way.

In a further aspect, the ends of the cover plate extend to the middle of the "n" shaped groove.

In a further scheme, the first limit flange and the second limit flange are used for being in sliding connection with the edge of the upper connecting seat of the crystallizer in a matching mode.

In a further scheme, the pouring holes are matched with the sizes of blank holes on the crystallizer.

In a further scheme, the upper surface of the cover plate is provided with a second groove which is positioned outside the pouring hole and is in a horn shape.

In a further scheme, a connecting plate is connected between the side wall of the n-shaped flange and the cover plate, and the connecting plate and the cover plate enclose the horn-shaped second groove.

In a further scheme, a plurality of pull buckles are connected to the upper surface of the cover plate.

In a further aspect, the first groove is used for installing a seal.

In a further aspect, the seal is an asbestos blanket.

The utility model has the beneficial effects that:

1. the first limiting flange and the second limiting flange are used for limiting connection with the crystallizer, and the first groove for installing the sealing element is formed, and after the sealing element such as asbestos is filled in the first groove, the gap between the crystallizer and the movable cover can be reduced.

2. The utility model is convenient for the movable cover to be stably placed on the shell such as the protective cover and the like outside the crystallizer through the n-shaped flange, and is convenient for the movable cover to be opened.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a middle portion of a movable cover of a mold according to an embodiment of the present utility model;

fig. 2 is a schematic top view of a movable cover of a mold according to an embodiment of the present utility model.

In the figure: 1. a cover plate; 11. pouring holes; 12. a first groove; 13. an end portion; 14. a second groove; 2. an "n" shaped flange; 3. the first limiting flange; 4. the second limiting flange; 5. a connecting plate; 6. and (5) pulling the buckle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in FIG. 1, a movable cover of a crystallizer comprises a cover plate 1, wherein a pouring hole 11 is formed in the cover plate 1, n-shaped flanges 2 are arranged at two ends of the cover plate 1, a first limiting flange 3 and a second limiting flange 4 which are positioned at the outer side of the pouring hole 11 are sequentially arranged on the lower surface of the cover plate 1, and a first groove 12 is formed between the first limiting flange 3 and the cover plate 1.

The working principle or the implementation mode is that when the casting hole 11 corresponds to a blank hole on a crystallizer, asbestos cloth is paved on the outer side of the blank hole of the crystallizer to serve as a sealing piece, then the first limit flange 3 and the second limit flange 4 are aligned to two mounting steps at the upper end of the blank hole, the first groove 12 is pressed on the asbestos cloth, meanwhile, the n-shaped flange 2 is clamped on a vertical flange of a protective device on the outer side of the crystallizer, and redundant asbestos cloth at the casting hole 11 is cleaned.

Like this, when the crystallizer vibrates, owing to filled the asbestos cloth in first recess 12, not only insulate against heat, also can play further sealed effect to crystallizer upper portion, can make the clearance of crystallizer and movable cover be less than 2mm, satisfy the primary crystallizer vibration, cause the condition of a large amount of vapor seepage to take place, cause the covering slag on every side moist, carry a large amount of vapor to enter into the blank mouth when avoiding the covering slag to drop, cause casting blank H to exceed standard, indirect improvement casting blank quality and efficiency.

According to the above principle of operation, some preferred embodiments are provided in which the end 13 of the cover plate 1 extends into an n-shaped recess of the "n" -shaped flange 2, as shown in fig. 1. In this way, only one point of the end 13 is in contact with the vertical flange of the protection device outside the crystallizer, which reduces damage to the vertical flange of the protection device outside the crystallizer. The vertical flange is the structure on the existing protector, i.e. the protective cover, and if the existing protector is not provided, one can be added, so that the description is omitted.

The end 13 of the cover plate 1 extends to the middle of the "n" -shaped groove. Thus, the processing of the n-shaped groove is convenient, the strength of the n-shaped groove is better, and the requirement of the vertical flange of the protection device which is fast clamped to the outer side of the crystallizer is met.

The first limit flange 3 and the second limit flange 4 are used for being in sliding connection with the edge of the upper connecting seat of the crystallizer in a matching way. Thus meeting the vibration requirement of the crystallizer. The upper connecting seat of the crystallizer is also a structure for connecting the feeding part of the existing crystallizer, and if the connecting seat is not provided with the connecting seat, the connecting seat can be additionally arranged, so that the connecting seat is not repeated.

As shown in fig. 2, the pouring hole 11 is matched with the size of the blank hole on the crystallizer. Thus, the square molten steel or the protection slag material accurately enters the blank hole.

The upper surface of the cover plate 1 is provided with a second groove 14 which is positioned outside the pouring hole 11 and is in a horn shape. Thus, slag, molten steel and the like are conveniently protected from falling into the blank holes below the pouring holes 11.

As shown in fig. 1, a connecting plate 5 is connected between the side wall of the n-shaped flange 2 and the cover plate 1, and the connecting plate 5 and the cover plate 1 enclose the second horn-shaped groove 14. The connecting plate 5 is connected, so that the structure is simple, and the processing formation of the horn-shaped second groove 14 can be facilitated.

The upper surface of the cover plate 1 is connected with a plurality of pull buckles 6. The number of the pull buckles 6 can be four, and a plurality of pull buckles 6 are convenient for the lifting device to lift the cover plate 1, so that the overhaul is convenient.

The first recess 12 is used for mounting a seal. The seal is an asbestos blanket. The asbestos blanket is not only fire-resistant but also has a certain tightness and flexibility, it being understood by those skilled in the art that the seals herein may also be made of other heat-resistant and fire-resistant materials, such as silica gel insulation gaskets, ceramic insulation gaskets, etc.

It should be noted that the terms "first," "second," and the like herein are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a crystallizer movable cover, includes apron (1), be provided with pouring hole (11) on apron (1), its characterized in that, the both ends of apron (1) are provided with "n" shape flange (2), apron (1) lower surface has set gradually first spacing flange (3) and second spacing flange (4) that are located pouring hole (11) outside, be formed with first recess (12) between first spacing flange (3) and apron (1).

2. A mould mobile cover according to claim 1, characterized in that the end (13) of the cover plate (1) extends into the n-shaped recess of the "n" -shaped flange (2).

3. A movable mould cover according to claim 2, characterized in that the end (13) of the cover plate (1) extends to the middle of the "n" -shaped recess.

4. A movable mould cover according to claim 1, characterized in that the first limit flange (3) and the second limit flange (4) are adapted to be slidingly coupled in a matching manner to the edge of the upper connecting seat of the mould.

5. A mould moving cover according to claim 1, characterized in that the pouring aperture (11) is adapted to the size of the blank aperture in the mould.

6. A movable mould cover according to claim 1, characterized in that the upper surface of the cover plate (1) is provided with a second groove (14) which is in the shape of a horn outside the pouring hole (11).

7. The movable cover of the crystallizer as in claim 6, wherein a connecting plate (5) is connected between the side wall of the n-shaped flange (2) and the cover plate (1), and the second horn-shaped groove (14) is formed between the connecting plate (5) and the cover plate (1).

8. A movable cover for a crystallizer as in claim 1, characterized in that the upper surface of the cover plate (1) is connected with a plurality of pull buckles (6).

9. A movable mould cover according to any one of claims 1-8, characterized in that the first recess (12) is adapted to receive a sealing element.

10. A crystallizer moving cover according to claim 9, characterized in that said seal is an asbestos blanket.