CN216607224U

CN216607224U - Tundish slag-sucking filtering slag-stopping wall

Info

Publication number: CN216607224U
Application number: CN202123298922.XU
Authority: CN
Inventors: 谷雨
Original assignee: Anshan Western Refractory Products Co ltd
Current assignee: Anshan Western Refractory Products Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-27
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a tundish slag-absorbing filtering slag-stopping wall, which relates to the technical field of fire-resistant equipment and comprises a tundish groove body, wherein a pair of slag-stopping walls are symmetrically arranged in the tundish groove body, the tundish groove body is divided into two pouring areas and an impact area by the pair of slag-stopping walls, the impact area is arranged in the middle of the tundish groove body, the pouring areas are arranged at two sides of the impact area, the lower bottom surfaces of the pair of slag-stopping walls respectively form openings which enable the pouring areas and the impact area to be communicated with the tundish groove body, and the bottom of the pouring areas is respectively provided with a water outlet; an external ladle and a lower nozzle arranged at the bottom of the ladle are arranged above the impact area; the utility model is provided with the filtering structure, the residues can be filtered through the casting filter screen, and the falling molten steel is slowly flowed through the buffer structure, so that the molten steel in the impact area is relatively stable, the residues which are impacted into the pouring area are reduced, and the slag removing effect is improved.

Description

Tundish slag-sucking filtering slag-stopping wall

Technical Field

The utility model relates to the technical field of refractory equipment, in particular to a tundish slag-absorbing filtering slag-stopping wall.

Background

The tundish is a refractory material container used in short-process steelmaking, firstly receives molten steel poured from a ladle, and then is distributed into each crystallizer through a tundish nozzle; the slag trap is an important part in the tundish, but the effect that the slag trap blocks the slag charge that the slagging-off agent combines is poor at present, is because lack the filtration on the one hand, and some residue still gets into the pouring zone, and on the other hand molten steel is unstable in the impact zone, and the convection current is serious, causes the unable come-up of residue, so a tundish inhales sediment and filters the slag trap and await developing urgently.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a tundish slag-absorbing filtering slag-stopping wall which is provided with a filtering structure, residues can be filtered through a casting filter screen, and falling molten steel is slowly flowed through a buffer structure, so that the molten steel in an impact area is relatively stable, the residues which are flushed into a pouring area are reduced, and the slag-removing effect is improved.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a tundish slag-absorbing filtering slag-stopping wall comprises a tundish groove body, wherein a pair of slag-stopping walls are symmetrically arranged in the tundish groove body, the tundish groove body is divided into two pouring areas and an impact area by the pair of slag-stopping walls, the impact area is arranged in the middle of the tundish groove body, the pouring areas are arranged on two sides of the impact area, the lower bottom surfaces of the pair of slag-stopping walls respectively form openings which enable the pouring areas and the impact area to be communicated with each other with the tundish groove body, and the bottom of the pouring areas is respectively provided with a water outlet; an external ladle and a lower nozzle arranged at the bottom of the ladle are arranged above the impact area; the bottom of the impact area is provided with a buffer structure, and the buffer structure corresponds to the position of the water outlet up and down; and the tundish body and the slag wall are provided with a filtering structure.

Preferably, the buffer structure comprises a built bearing column, the bearing column is fixedly installed at the central position of the bottom of the tundish body, a cylindrical groove is vertically arranged inside the bearing column to enable the bearing column to be cylindrical, a plurality of through holes are uniformly formed in the side wall of the cylindrical bearing column, and the through holes are inclined upwards from the inside of the bearing column to the outside.

Preferably, the bottom of the cylindrical groove of the bearing column is provided with a bearing block of which the upper surface is spherical; the upper end of the bearing column is set into a concave cambered surface which is concave inwards towards the center.

Preferably, filtration includes clamping board, two casting filter screens and counter weight frame, the clamping board is a closed frame that end to end encloses, and the clamping board can be placed in the middle of wrap cell body and keep off the last edge of slag wall and can not drop, and two casting filter screen fixed mounting just correspond a pair of inboard position of slag wall in bottom surface under the clamping board, and the lower extreme of two casting filter screens is connected with the counter weight frame jointly, and casting filter screen and counter weight frame highly equal to the inside degree of depth of middle package cell body.

Preferably, a pair of fixing strips is fixedly arranged at the bottom of the tundish body and below the corresponding slag blocking wall and used for limiting the position of the counterweight frame.

Preferably, a pair of handles is provided on the upper surface of the locking plate.

The utility model provides a tundish slag-absorbing filtering slag-stopping wall which has the following beneficial effects:

1. the slag removing device is provided with the filtering structure, residues can be filtered through the cast filtering net, and falling molten steel is slowly flowed through the buffering structure, so that the molten steel in an impact area is relatively stable, the residues which are impacted into a pouring area are reduced, and the slag removing effect is improved;

2. the filter structure can be disassembled, and the cast filter screen can be cleaned or replaced regularly, so that the filter effect of the cast filter screen is ensured; the fixed strip carries out spacing card to the counter weight frame of casting filter screen lower extreme, has guaranteed casting filter screen stability in the filtering process.

Drawings

FIG. 1 is a front sectional view of a tundish slag-absorbing filtering slag-stopping wall according to the present invention.

FIG. 2 is a top view of the tundish slag suction filtration slag dam of the present invention.

In the figure: 1. a tundish body; 2. a pouring area; 3. a water outlet; 4. an opening; 5. a cylindrical groove; 6. a bearing block; 7. a support post; 8. a through hole; 9. a counterweight frame; 10. a fixing strip; 11. casting a filter screen; 12. a clamping plate; 13. a handle; 14. a ladle; 15. a water outlet; 16. an impact zone; 17. a concave arc surface; 18. and a slag wall.

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.

As shown in fig. 1-2, a tundish slag-absorbing filtering slag-stopping wall comprises a tundish tank 1, a pair of slag-stopping walls 18 are symmetrically arranged in the tundish tank 1, the tundish tank 1 is divided into two pouring areas 2 and an impact area 16 by the pair of slag-stopping walls 18, the impact area 16 is arranged in the middle of the tundish tank 1, the pouring areas 2 are arranged at two sides of the impact area 16, the lower bottom surfaces of the pair of slag-stopping walls 18 respectively form an opening 4 communicating the pouring areas 2 with the impact area 16 with the tundish tank 1, and the bottom of the pouring area 2 is respectively provided with a water outlet 3; an external ladle 14 and a water outlet 15 arranged at the bottom of the ladle 14 are arranged above the impact area 16; the bottom of the impact area 16 is provided with a buffer structure, and the buffer structure corresponds to the position of the lower water gap 15 up and down; the tundish body 1 and the slag wall 18 are provided with a filtering structure; the buffer structure comprises a built bearing column 7, the bearing column 7 is fixedly arranged at the central position of the bottom of the tundish body 1, a cylindrical groove 5 is vertically arranged in the bearing column 7 to enable the bearing column 7 to be cylindrical, a plurality of through holes 8 are uniformly formed in the side wall of the cylindrical bearing column 7, and the through holes 8 are inclined upwards from the inside to the outside of the bearing column 7; the bottom of the cylindrical groove 5 of the bearing column 7 is provided with a bearing block 6 with a spherical upper surface; the upper end of the bearing column 7 is provided with a concave cambered surface 17 which is concave towards the center; the filter structure comprises a clamping plate 12, two cast filter screens 11 and a counterweight frame 9, wherein the clamping plate 12 is a closed frame formed by enclosing from end to end, the clamping plate 12 can be placed on the upper edges of the tundish body 1 and the slag blocking walls 18 and cannot fall off, the two cast filter screens 11 are fixedly arranged on the lower bottom surface of the clamping plate 12 and correspond to the inner sides of the slag blocking walls 18, the lower ends of the two cast filter screens 11 are connected with the counterweight frame 9 together, and the heights of the cast filter screens 11 and the counterweight frame 9 are equal to the depth of the inner part of the tundish body 1; a pair of fixing strips 10 are fixedly arranged at the bottom of the tundish body 1 and below the corresponding slag blocking wall 18 and used for limiting the position of the counterweight frame 9; a pair of handles 13 is provided on the upper surface of the locking plate 12.

The detailed connection means is a technique known in the art, and the following main description is provided for the working principle and process, and specifically provided for the following:

as can be seen from the description of the attached drawings in the specification and the figures 1-2, when the tundish body 1 works, molten steel in a ladle 14 flows into an impact area 16 of the tundish body 1 through a water outlet 15, and in the falling process of the molten steel, the molten steel falls on a receiving column 7 of the impact area 16 or a receiving block 6 at the bottom of a cylindrical groove 5 of the receiving column 7, and as the upper edge of the receiving column 7 is provided with a concave arc surface 17 and the upper surface of the receiving block 6 is spherical, the falling molten steel cannot splash to the outside of the tundish body 1, and is prevented from directly hitting the bottom of the tundish body 1 to damage the tundish body 1 for a long time; molten steel flows out from the through hole 8 arranged on the side wall of the receiving column 7 through the molten steel falling into the cylindrical groove 5, and the through hole 8 inclines upwards from inside to outside, so that the molten steel falling rapidly is subjected to stable and slow flow under the action of the cylindrical groove 5 and the through hole 8, the molten steel in the impact area 16 is stable as much as possible, and residues float upwards, so that the residues flowing into the pouring area 2 from the opening are reduced, and the slag removal effect is improved.

Molten steel in the impact area 16 flows to the pouring area 2 from an opening 4 between the slag-stopping wall 18 and the tundish body 1, and because the slag-stopping wall 18 and the upper edge of the tundish body 1 are provided with the clamping plate 12, and the lower bottom surface of the clamping plate 12 and one side corresponding to the slag-stopping wall 18 are provided with the casting filter screen 11 and extend to the bottom of the tundish body 1, the molten steel flowing through the opening 4 is filtered, and the slag removal effect is improved; the counterweight frame 9 at the lower end of the cast filter screen 11 and the fixing strip 10 for limiting the counterweight frame 9 are used for enabling the cast filter screen 11 to be stable and not to shake in the impact area 16; the card board 12 makes and places on the wall 18 of keeping off the slag and the middle package body 1 along, and the present detachable mode of also can adopting here is connected, when out of work, and handle 13 on the accessible card board 12 pulls out filter screen and the kind of a frame, clears up or changes, guarantees the slagging-off efficiency in the work.

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

1. A tundish slag-absorbing filtering slag-stopping wall comprises a tundish body (1), and is characterized in that a pair of slag-stopping walls (18) are symmetrically arranged in the tundish body (1), the tundish body (1) is divided into two pouring areas (2) and an impact area (16) by the pair of slag-stopping walls (18), the impact area (16) is arranged in the middle of the tundish body (1), the pouring areas (2) are arranged at two sides of the impact area (16), the lower bottom surfaces of the pair of slag-stopping walls (18) and the tundish body (1) respectively form an opening (4) which enables the pouring areas (2) and the impact area (16) to be communicated, and the bottom of the pouring areas (2) is provided with a water outlet (3) respectively; an external ladle (14) and a water outlet (15) arranged at the bottom of the ladle (14) are arranged above the impact area (16); the bottom of the impact area (16) is provided with a buffer structure, and the buffer structure corresponds to the position of the lower water gap (15) up and down; and the tundish body (1) and the slag wall (18) are provided with a filtering structure.

2. The tundish slag-absorbing filtering slag-stopping wall according to claim 1, wherein the buffer structure comprises a built bearing column (7), the bearing column (7) is fixedly installed at the central position of the bottom of the tundish body (1), a cylindrical groove (5) is vertically arranged inside the bearing column (7) to enable the bearing column (7) to be cylindrical, a plurality of through holes (8) are uniformly formed in the side wall of the cylindrical bearing column (7), and the through holes (8) are upwards inclined from the inside to the outside of the bearing column (7).

3. The tundish slag-absorbing filtering slag-stopping wall according to claim 2, wherein the bottom of the cylindrical groove (5) of the receiving column (7) is provided with a receiving block (6) with a spherical upper surface; the upper end of the bearing column (7) is provided with a concave cambered surface (17) which is concave towards the center.

4. The tundish slag-suction filtering slag-stopping wall as claimed in claim 1, wherein the filtering structure comprises a clamping plate (12), two casting filter screens (11) and a counterweight frame (9), the clamping plate (12) is a closed frame enclosed by the end-to-end connection, the clamping plate (12) can be placed on the upper edges of the tundish groove body (1) and the counterweight wall (18) and cannot fall off, the two casting filter screens (11) are fixedly installed on the lower bottom surface of the clamping plate (12) and correspond to the inner side positions of the counterweight wall (18), the lower ends of the two casting filter screens (11) are connected with the counterweight frame (9) together, and the height of the casting filter screens (11) and the counterweight frame (9) is equal to the depth of the inner part of the tundish groove body (1).

5. The tundish slag-absorbing filtering slag-stopping wall according to claim 4, wherein a pair of fixing strips (10) are fixedly arranged at the bottom of the tundish body (1) and below the corresponding slag-stopping wall (18) and used for limiting the position of the counterweight frame (9).

6. A tundish slag-absorbing filtering slag-stopping wall according to claim 4, characterized in that the upper surface of the locking plate (12) is provided with a pair of handles (13).