CN219188602U

CN219188602U - Tundish cover for continuous casting

Info

Publication number: CN219188602U
Application number: CN202223366925.7U
Authority: CN
Inventors: 李国群; 严培忠; 虞畅; 费国荣; 马安平
Original assignee: Zhejiang Hongying Group Co ltd
Current assignee: Zhejiang Hongying Group Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-16
Anticipated expiration: 2032-12-15

Abstract

The utility model relates to the field of steelmaking, in particular to a tundish cover for continuous casting, which comprises an outer frame, wherein a plurality of vertical connecting columns are fixed on the inner wall of the outer frame, a plurality of horizontal connecting columns are fixed between two adjacent vertical connecting columns, a plurality of anchoring parts are fixed on the vertical connecting columns and the horizontal connecting columns, refractory materials are poured among the outer frame, the vertical connecting columns and the horizontal connecting columns are hollow and mutually communicated, an input pipe of a cooling circulation device is communicated on the vertical connecting column at the leftmost end, an output pipe of the cooling circulation device is communicated with the vertical connecting column at the rightmost end, and the tundish cover greatly improves the grasping force with the refractory materials through the arrangement of the anchoring parts, greatly increases the fixing effect of the tundish cover, and can also well cool and dissipate heat of the vertical connecting columns, the horizontal connecting columns and the anchoring parts fixed on the vertical connecting columns, so as to finally greatly improve the service life of the tundish cover.

Description

Tundish cover for continuous casting

Technical Field

The utility model relates to the field of steelmaking, in particular to a tundish cover for continuous casting.

Background

The tundish is a refractory material container used in short-flow steelmaking, firstly receives molten steel poured from a ladle, then distributes the molten steel into each crystallizer through a tundish nozzle, and plays roles of reducing the hydrostatic pressure of molten steel, stabilizing the flow of molten steel, removing impurities, storing and diverting the molten steel. In a continuous casting plant, a large number of tundish are operated under various working conditions. The tundish cover is directly covered on the tundish, and then the tundish cover and the tundish are periodically operated together, namely, baking, filling a stopper, baking on the upper continuous casting platform, containing molten steel, pouring steel and cooling on the lower continuous casting platform. Thus, the tundish cover plays an important role in the operation process: on one hand, the heat dissipation loss can be prevented; on the other hand, the heat radiation and the splashing of molten steel or slag can be prevented, various devices are protected, and the working environment is improved.

However, the working environment of the tundish cover is very bad and is subjected to frequent physical and chemical damages such as temperature fluctuation, high-temperature radiation, slag erosion, deformation stress of a steel structure and the like, so that the lining refractory material of the tundish cover is seriously damaged and peeled off, the service life of the tundish cover is very low, for example, a tundish cover with good heat preservation performance is disclosed in a patent with the application number of CN202020540273.6, the fixing effect between a high-temperature phase-change material and a frame is very poor, the grabbing force between the high-temperature phase-change material and the frame is very small, and the high-temperature phase-change material is easily peeled off from the frame, so that the service life of the tundish cover is reduced; in addition, the ladle cover in the patent has poor heat dissipation effect in the using process, so that the ladle cover continuously heats up and has poor thermal shock resistance, and therefore, the ladle cover with good fixing effect of the frame and the refractory castable and good heat dissipation and cooling effects is needed.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model aims to provide the tundish cover for continuous casting, which solves the problems existing in the prior art, and the tundish cover greatly improves the grabbing force among the vertical connecting column, the transverse connecting column and the refractory material through the arrangement of the anchoring piece, so that the fixing effect among the refractory material, the vertical connecting column and the transverse connecting column is good, the refractory material cannot be easily broken or fall off, and the fixing effect of the tundish cover is greatly improved.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tundish cover for continuous casting, which comprises an outer frame, be fixed with a plurality of vertical spliced poles on the inner wall of frame, be fixed with a plurality of transverse connection post between two adjacent vertical spliced poles, be fixed with a plurality of anchor assembly on vertical spliced pole and the transverse connection post, refractory material has been pour between frame, vertical spliced pole and the transverse connection post, and vertical spliced pole and transverse connection post set up to hollow, and communicate each other, the intercommunication has cooling circulation device's input tube on the vertical spliced pole of left end, cooling circulation device's output tube communicates the vertical spliced pole of right-hand member.

Preferably, the anchoring member is fixed on the lower surfaces of the vertical connecting column and the horizontal connecting column, the shape of the anchoring member is set to be W-shaped, two top end parts and the middle part of the W-shaped anchoring member are both fixed on the lower surface of the vertical connecting column or the horizontal connecting column, and the W-shaped anchoring member is set to be hollow, and the two top end parts are communicated with the vertical connecting column or the horizontal connecting column.

Preferably, a plurality of X-shaped reinforcing ribs are fixed on the outer surface of the anchoring piece.

Preferably, the vertical connecting column is fixed at the upper third of the inner wall of the outer frame.

Preferably, a plurality of Y-shaped anchoring nails are fixed on the upper surfaces and the side surfaces of the vertical connecting columns and the transverse connecting columns.

Preferably, both bottom ends of the W-shaped anchor extend all the way to near the bottom edge of the outer frame.

Preferably, the refractory material is provided with a plurality of through holes, and the through holes are provided with detachable upper covers.

(III) beneficial effects

1. The utility model provides a tundish cover for continuous casting, which greatly improves the grabbing force among vertical connecting columns, transverse connecting columns and refractory materials through the arrangement of anchoring pieces, so that the fixing effect among the refractory materials, the vertical connecting columns and the transverse connecting columns is good, the refractory materials cannot be easily broken or fall off, and the fixing effect of the tundish cover is greatly improved;

2. according to the utility model, the anchoring piece is W-shaped, and the X-shaped reinforcing ribs and the Y-shaped anchoring nails are arranged, so that on one hand, the fireproof material can be well gripped, and the gripping effect is greatly improved; in addition, the W-shaped anchoring piece is hollow and is communicated with the vertical connecting column or the transverse connecting column, so that cooling gas or liquid can pass through the W-shaped anchoring piece, the cooling effect of the anchoring piece is greatly enhanced, the situation that the anchoring piece is deformed due to melting caused by too high temperature is avoided, the grabbing force of the anchoring piece to the refractory material is well ensured, and the service life of the ladle cover is further prolonged.

Drawings

Fig. 1 is an overall schematic of the present utility model.

FIG. 2 is a top view of the utility model with the refractory removed.

Fig. 3 is a schematic view of anchors on the lower surfaces of the vertical and horizontal connecting columns of the present utility model.

Fig. 4 is a schematic view of an X-shaped stiffener on an anchor according to the present utility model.

Fig. 5 is a schematic view of Y-shaped anchors on vertical and lateral connecting posts of the present utility model.

In the figure: the device comprises a 1-outer frame, a 2-vertical connecting column, a 3-transverse connecting column, a 4-anchoring piece, a 5-refractory material, a 6-cooling circulation device, a 7-input pipe, an 8-output pipe, a 9-top end part, a 10-middle part, 11-X-shaped reinforcing ribs, 12-anchoring nails, a 13-bottom end part and 14-through holes.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present utility model, and it is obvious that the described embodiments 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.

The utility model provides a technical scheme that: the utility model discloses a tundish cover for continuous casting, which comprises an outer frame 1, wherein a plurality of vertical connecting columns 2 are fixed on the inner wall of the outer frame 1, a plurality of horizontal connecting columns 3 are fixed between two adjacent vertical connecting columns 2, a plurality of anchoring pieces 4 are fixed on the vertical connecting columns 2 and the horizontal connecting columns 3, refractory materials 5 are poured among the outer frame 1, the vertical connecting columns 2 and the horizontal connecting columns 3 are arranged to be hollow and mutually communicated, an input pipe 7 of a cooling circulation device 6 is communicated with the vertical connecting column 3 at the leftmost end, an output pipe 8 of the cooling circulation device 6 is communicated with the vertical connecting column 3 at the rightmost end, and the utility model greatly prolongs the service life of the tundish cover by arranging the vertical connecting columns 2 and the horizontal connecting columns 3 on the hollow connecting columns 3, and greatly prolonging the service life of the tundish cover by fixing anchoring pieces 4 on the vertical connecting columns 2 and the horizontal connecting columns 3; wherein the refractory material 5 belongs to the prior art and can be a magnesium plate poured by a magnesium refractory material; the cooling circulation device 6 also belongs to the prior art, for example, the cooling circulation device 6 can be formed by a cooling box and a cooling pipe arranged in the cooling box, the cooling pipe is communicated with an input pipe 7 and an output pipe 8, cooling liquid is filled in the cooling box, a liquid pump or an air pump is arranged on the cooling liquid, gas can be introduced into the vertical connecting column 2 and the transverse connecting column 3, liquid can also be introduced into the cooling circulation device, the gas or the liquid cooled by the cooling circulation device 6 enters the vertical connecting column 2 and the transverse connecting column 3 from the input pipe 7, the vertical connecting column 2 and the transverse connecting column 3 are cooled, and meanwhile, the anchor 4 fixed on the cooling circulation device is cooled, so that the anchor 4 cannot be easily melted and oxidized at a high temperature, the grasping force of the anchor 4 on the refractory 5 is further ensured under the high-temperature environment, the refractory 5 cannot be easily broken or dropped, the service life of the refractory 5 is further prolonged, and the gas or the liquid discharged from the vertical connecting column 2 and the transverse connecting column 3 enters the cooling circulation device 6 again through the output pipe 8 for cooling, and thus the reciprocating circulation is performed.

The anchoring piece 4 is fixed on the lower surfaces of the vertical connecting column 2 and the transverse connecting column 3, the shape of the anchoring piece 4 is set to be W-shaped, two top end parts 9 and middle parts 10 of the W-shaped anchoring piece 4 are fixed on the lower surface of the vertical connecting column 2 or the transverse connecting column 3, the W-shaped anchoring piece 4 is set to be hollow, the two top end parts 9 are communicated with the vertical connecting column 2 or the transverse connecting column 3, and by setting the anchoring piece 4 to be W-shaped, on one hand, the W-shaped anchoring piece 4 can well grip the refractory material 5, because four gripping ribs extend into the refractory material 5, compared with the common anchoring piece 4 (such as a conventional herringbone anchoring nail), the gripping effect is obviously improved; in addition, the W-shaped anchoring piece 4 is hollow and is communicated with the vertical connecting column 2 or the transverse connecting column 3, so that cooling gas or liquid can pass through the W-shaped anchoring piece 4, the cooling effect on the anchoring piece 4 is greatly enhanced, the situation that the anchoring piece 4 is melted and deformed due to too high temperature is avoided, the grabbing force of the anchoring piece 4 to the refractory material 5 is well ensured, and the service life of the ladle cover is further prolonged.

A plurality of X-shaped reinforcing ribs 11 are fixed on the outer surface of the anchoring piece 4, and the clamping force of the anchoring piece 4 to the refractory material 5 is further improved through the arrangement of the X-shaped reinforcing ribs 11, so that the refractory material 4 is prevented from being broken and falling off, and the service life of the ladle cover is greatly prolonged.

The vertical connecting column 2 is fixed at the upper third of the inner wall of the outer frame 1, the vertical connecting column 2 is arranged at the part of the outer frame 1 close to the upper end, and one effect of the tundish cover is heat preservation, so that the vertical connecting column 2 and the transverse connecting column 3 are arranged at the upper third of the outer frame 1, on one hand, the heat preservation effect of the bottom is improved, and on the other hand, the heat dissipation effect of the top is well achieved.

The vertical connecting column 2 and the transverse connecting column 3 are fixedly provided with a plurality of Y-shaped anchoring nails 12 on the upper surfaces and the side surfaces, the grabbing force to the refractory material 5 is increased from the transverse direction through the arrangement of the Y-shaped anchoring nails 12 on the side surfaces, the effect of further preventing the refractory material 5 from being broken and falling off is achieved, the Y-shaped anchoring nails 12 are arranged on the upper surfaces of the vertical connecting column 2 and the transverse connecting column 3, and the grabbing force to the refractory material 5 above the vertical connecting column 2 and the transverse connecting column 3 is increased, so that the effect of preventing the refractory material 5 from being broken and falling off is further enhanced.

The two bottom ends 13 of the W-shaped anchoring member 4 extend all the way to the bottom edge of the outer frame 1, so that the anchoring member 4 extends down to the maximum extent, increasing the fixing effect of the refractory 5, and simultaneously the anchoring member 4 can be poured inside the outer frame 1 without leaking outside the refractory 5 when the refractory 5 is poured.

The refractory material 5 is provided with a plurality of through holes 14, the through holes 14 are provided with detachable upper covers, the through holes 14 are used for filling stopper rods or adding covering agents, the stopper rods are used for controlling the flow rate of molten steel in the tundish, the number, the shape and the size of the through holes 14 are set according to the requirements, and the detachable upper covers matched with the through holes 14 are arranged above the through holes 14.

Working principle: the ladle cover is covered on the tundish, when the ladle cover works, only the cooling circulation device 6 is required to be opened, gas or liquid is required to be introduced into the input pipe 7, the gas or liquid is output from the output pipe 8 through the vertical connecting columns 2, the horizontal connecting columns 3 and the W-shaped anchoring piece 4 and returns to the cooling circulation device 6 again for cooling, circulation is carried out, wherein the flow of the gas or liquid can be regulated and controlled, the vertical connecting columns 2, the horizontal connecting columns 3 and the W-shaped anchoring piece 4 are cooled in a circulation mode, the cooling effect is good, the ladle cover is cooled well, on the one hand, the refractory material 5 can be well gripped through effective cooling of the W-shaped anchoring piece 4, in addition, the cooling effect of the cooling gas or liquid can be realized through the inside of the W-shaped anchoring piece 4, the anchor piece 4 can not be melted and deformed due to the fact that the temperature is too high, the resultant force of the anchoring piece 4 to the refractory material 5 is well ensured, and the service life of the ladle cover is greatly prolonged.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. The utility model provides a tundish ladle cover for continuous casting, its characterized in that, includes frame (1), be fixed with a plurality of vertical spliced pole (2) on the inner wall of frame (1), two adjacent be fixed with a plurality of transverse connection post (3) between vertical spliced pole (2), vertical spliced pole (2) with be fixed with a plurality of anchor assembly (4) on transverse connection post (3), frame (1) vertical spliced pole (2) with pour refractory material (5) between transverse connection post (3), just vertical spliced pole (2) with transverse connection post (3) set up to hollow, and communicate each other, left end vertical spliced pole (2) are last to be linked together have input tube (7) of cooling circulation device (6), output tube (8) of cooling circulation device (6) communicate right end vertical spliced pole (2).

2. Tundish cover for continuous casting according to claim 1, characterized in that the anchoring element (4) is fixed on the lower surfaces of the vertical connecting column (2) and the transverse connecting column (3), the shape of the anchoring element is set to be W-shaped, two top end parts (9) and an intermediate part (10) of the W-shaped anchoring element (4) are both fixed on the lower surface of the vertical connecting column (2) or the transverse connecting column (3), and the W-shaped anchoring element (4) is set to be hollow, and the two top end parts (9) are communicated with the vertical connecting column (2) or the transverse connecting column (3).

3. Tundish cover for continuous casting according to claim 2, characterized in that the outer surface of the anchor element (4) is fixed with a number of X-shaped stiffening ribs (11).

4. Tundish cover for continuous casting according to claim 1, characterized in that the vertical connecting column (2) is fixed at the upper third of the inner wall of the outer frame (1).

5. Tundish cover for continuous casting according to claim 1, characterized in that the upper surfaces and the side surfaces of the vertical connecting column (2) and the transverse connecting column (3) are fixed with a plurality of Y-shaped anchoring nails (12).

6. Tundish cover for continuous casting according to claim 2, characterized in that the two bottom ends (13) of the W-shaped anchor element (4) extend all the way to the bottom edge of the outer frame (1).

7. Tundish cover for continuous casting according to claim 1, characterized in that the refractory material (5) is provided with a plurality of through holes (14), and the through holes (14) are provided with a detachable upper cover.