CN217315860U

CN217315860U - Device capable of continuously replacing tundish nozzle seat

Info

Publication number: CN217315860U
Application number: CN202220368008.3U
Authority: CN
Inventors: 吴宪
Original assignee: Panshi Jianlong Steel Co ltd
Current assignee: Panshi Jianlong Steel Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-30
Anticipated expiration: 2032-02-23

Abstract

The utility model relates to a device capable of continuously replacing a tundish water outlet seat, which structurally comprises an upper water outlet seat, a lower water outlet seat, a top plate, a first reversing joint, a first pull rod, a second pull rod and a second reversing joint, wherein the lower water outlet seat comprises two water outlet seats which are mutually abutted and are both positioned in the upper water outlet seat and are in sliding connection with the upper water outlet seat, the top plate is positioned at the side of the upper water outlet seat and is abutted against one of the lower water outlet seats, the other side of the top plate is fixedly connected with one end of the first reversing joint, the other end of the first reversing joint is hinged with the end part of the first pull rod, the other end of the first pull rod is vertical to and hinged with the second pull rod, the end part of the second reversing joint is hinged with the middle part of the second pull rod, and the other end of the second reversing joint is a fixed end, the utility model can replace the lower water outlet seat and the lower water outlet seat together on line under the condition that the water outlet is dipped in steel, so that the tundish can be used continuously.

Description

Device capable of continuously replacing tundish water outlet seat

Technical Field

The utility model relates to the field of molten steel smelting equipment, in particular to a device capable of continuously replacing a tundish nozzle seat.

Background

In a steelmaking system, molten steel is tapped from a converter or electric furnace into ladles. Refining in a steel ladle to remove gas impurities in the molten steel, and then injecting the molten steel into a tundish from the steel ladle to further remove impurities. The tundish receives molten steel poured from a ladle, and then the molten steel is distributed to each crystallizer through an upper water gap and a lower water gap of the tundish, the lower water gap needs to be replaced after being used for a period of time, but in order not to influence the normal work of the tundish, a device for replacing the lower water gap is generally installed at an outlet of the tundish.

The mode of pulling the drain frame back and forth is adopted in the replacement of the drain of the tundish in the past, and the method has the following defects:

the upper and lower water port seats are fixed at the bottom of the tundish, the lower water port seat needs to be pulled in a reciprocating manner when the water port is replaced, the problem of steel sticking and clamping can occur in the reciprocating pulling process, and the lower water port seat cannot be replaced on line to cause the tundish to be off-line;

secondly, enough space is needed for pulling the water gap seat to carry out lever left-right swing, and the requirement on the required operation space is large;

and pulling the nozzle seat can be completed only by cooperation of two persons, so that the requirement on the force application direction of operating personnel is high, and the nozzle seat cannot be replaced in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can change device of middle package offal seat in succession, can be stained with under the circumstances of steel at the mouth of a river and the offal seat is changed on line together, make the middle package can continue to use.

In order to achieve the above purpose, the following technical scheme is provided:

the utility model provides a device that can change middle package water gap seat in succession, the structure includes water gap seat, lower water gap seat, roof, first switching-over joint, first pull rod, second switching-over joint, lower water gap seat has two, mutual butt, and all be located the water gap seat and with last water gap seat sliding connection, the roof is located the avris of water gap seat, and rather than one lower water gap seat butt, the opposite side of roof and the one end fixed connection that first switching-over connects, the other end that first switching-over connects is articulated with the tip of first pull rod, the other end and the perpendicular and articulated of second pull rod of first pull rod, the tip that the second switching-over connects is articulated with the middle part of second pull rod, and the other end that the second switching-over connects is the stiff end.

Preferably, the center of the upper nozzle base is provided with a first through hole, and the upper part of the upper nozzle base is provided with a sliding groove.

Preferably, the center of the lower water outlet seat is provided with a second through hole, two sides of the lower water outlet seat are respectively provided with a sliding block, and the sliding blocks are located in the sliding grooves and are in relative sliding connection.

Preferably, the length of the sliding chute is the length of two lower water outlet seats.

Preferably, the second pull rod consists of a first straight line segment and a second straight line segment, an included angle between the first straight line segment and the second straight line segment is an obtuse angle, and a hinge point of the second reversing joint and the second pull rod is just a point of intersection of the first straight line segment and the second straight line segment.

The utility model has the advantages that:

the utility model can timely replace and close the water gap in the process of sudden abnormity, heat exchange or pulling down during the steel-making production, and solves the problem that the lower water gap seat is stained with steel and can not be replaced; the problem of when changing the lower mouth of a river, the swing space is not enough, causes injury among the personnel operation process is solved, and the horizontal hunting lever changes the operation of changing the mouth of a river into pushing down the lever, saves working space, easy operation, and single can change the mouth of a river operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the upper nozzle seat;

FIG. 3 is a sectional view taken along line A-A;

FIG. 4 is a front view of the lower spout base;

FIG. 5 is a sectional view taken along line B-B;

FIG. 6 is a front view of the second pull rod;

the reference symbols shown in the figures are: 1-upper water port seat, 2-lower water port seat, 3-top plate, 4-first reversing joint, 5-first pull rod, 6-second pull rod, 7-second reversing joint, 101-through hole I, 102-sliding groove, 201-through hole II, 202-sliding block, 601-straight line segment I and 602-straight line segment II.

Detailed Description

The following describes the present design in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, a device capable of continuously replacing a tundish nozzle holder structurally comprises an upper nozzle holder 1, a lower nozzle holder 2, a top plate 3, a first reversing joint 4, a first pull rod 5, a second pull rod 6 and a second reversing joint 7, wherein the lower nozzle holder 2 is provided with two lower nozzle holders 2 which are mutually abutted and are both positioned in the upper nozzle holder 1 and are in sliding connection with the upper nozzle holder 1, one of the two lower nozzle holders 2 is the lower nozzle holder 2 in use, the other one is a spare lower nozzle holder 2, the top plate 3 is positioned at the side of the upper nozzle holder 1 and is abutted with the spare lower nozzle holder 2, the other side of the top plate 3 is fixedly connected with one end of the first reversing joint 4, the other end of the first reversing joint 4 is hinged with the end of the first pull rod 5, the other end of the first pull rod 5 is vertical to and hinged with the second pull rod 6, the end of the second reversing joint 7 is hinged with the middle part of the second pull rod 6, the other end of the second reversing joint 7 is a fixed end, the second pull rod 6 is composed of a first straight line segment 601 and a second straight line segment 602, an included angle between the first straight line segment 601 and the second straight line segment 602 is an obtuse angle, a hinge point between the second reversing joint 7 and the second pull rod 6 is just the intersection point of the first straight line segment 601 and the second straight line segment 602, and therefore a lever structure is formed among the top plate 3, the first reversing joint 4, the first pull rod 5, the second pull rod 6 and the second reversing joint 7, an acting point is located on the standby lower water outlet seat 2, a first through hole 101 is formed in the center of the upper water outlet seat 1, and the sliding groove 102 is formed in the upper portion of the upper water outlet seat. The center of the lower water outlet seat 2 is provided with a second through hole 201, two sides of the lower water outlet seat are respectively provided with a sliding block 202, the sliding blocks 202 are positioned in the sliding grooves 102 and are in relative sliding connection, and the second through hole 201 of the lower water outlet seat 2 in use is superposed with the first through hole 101, so that the aim of flowing molten steel is fulfilled. The length of the sliding groove 102 is the length of two lower water outlet seats 2, when the spare lower water outlet seat 2 is pushed to the position being used, the former lower water outlet seat 2 is separated from the sliding groove 102, and the removal is convenient.

Examples

The product comprises a number of parts interconnected to form a pusher. Can deposit a reserve delivery port seat 2 on the water feeding port seat 1 on line, slide reserve delivery port seat 2 to the pouring position, take out delivery port seat 2 of pouring position through the propelling movement.

The specific using process is as follows:

firstly, an upper water outlet seat 1 and a lower water outlet seat 2 are arranged below a tundish and used for installing water outlets;

the lower water outlet seat 2 is pushed by the top plate 3 and used for replacing the lower water outlet seat 2, and the top plate 3 and the lower water outlet seat 2 can be contacted and separated;

the top plate 3 and the first reversing joint 4 are welded together, so that the top plate 3 can rotate, and the pressure feeding process is smoother;

the first reversing joint 4 is connected with one end of a first pull rod 5 by a pin shaft, the other end of the first pull rod 5 is connected with a second reversing joint 7 by a pin shaft, and the main function is to change the power direction;

the second reversing joint 7 is welded on the side face of the tundish, and the welding position is selected to be a position convenient for operation and used as a force fulcrum.

The second reversing joint 7, the first pull rod 5 and the second pull rod 6 form a labor-saving lever together;

a downward acting force needs to be output to the second pull rod 6, the force is transmitted to the top plate 3 through all parts, the standby lower water outlet seat 2 is pushed to the pouring position, the standby lower water outlet seat 2 ejects out the pouring lower water outlet seat 2, the replacement process is completed, and the standby position is used for replacing one lower water outlet seat 2 for the next use.

Claims

1. The utility model provides a can change device of middle package water gap seat in succession, its characterized in that, the structure includes water gap seat, lower water gap seat, roof, first switching-over joint, first pull rod, second switching-over joint, lower water gap seat has two, mutual butt, and all be located the water gap seat and with last water gap seat sliding connection, the roof is located the avris of water gap seat, and rather than one of them water gap seat butt, the opposite side of roof and the one end fixed connection that first switching-over connects, the other end that first switching-over connects is articulated with the tip of first pull rod, the other end and the perpendicular and articulated of second pull rod of first pull rod, the tip that the second switching-over connects is articulated with the middle part of second pull rod, and the other end that the second switching-over connects is the stiff end.

2. The apparatus of claim 1, wherein the upper nozzle holder has a through hole in its center and a slide groove in its upper part.

3. The device for continuously replacing the tundish nozzle holder according to claim 1 or 2, wherein the nozzle holder is provided with a second through hole at the center and a sliding block at each side, and the sliding blocks are positioned in the sliding grooves and connected in a relative sliding manner.

4. A device for continuously replacing a tundish nozzle block according to claim 2, wherein the chute is of the length of two nozzle blocks.

5. The device as claimed in claim 1, wherein the second pull rod comprises a first straight line segment and a second straight line segment, an included angle between the first straight line segment and the second straight line segment is an obtuse angle, and a hinge point between the second reversing joint and the second pull rod is exactly a point where the first straight line segment and the second straight line segment intersect.