CN210702511U

CN210702511U - Tundish composite impact plate with long service life

Info

Publication number: CN210702511U
Application number: CN201921417814.XU
Authority: CN
Inventors: 张舰; 孙文新; 鲁志燕; 崔娟
Original assignee: Prco Kisc Yunnan Refractories Co ltd
Current assignee: Prco Kisc Yunnan Refractories Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-09
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a compound impingement plate of long-life tundish, it includes that the machine presses the prefab, pours the prefab, the cross-section that the machine pressed the prefab is round platform shape, the top that the machine pressed the prefab is bellied cambered surface, it includes that integrative pouring fashioned overflow portion, impact portion, protects the wall portion to pour the prefab, impact portion sets up the bottom at the tundish, it sets up on the lateral wall of tundish to protect the wall portion, overflow portion sets up the edge at the top side of impact portion, overflow portion is the annular, the cross-section of overflow portion is trapezoidal, protects the laminating of wall portion on the lateral wall of tundish, the mounting hole has been seted up at the middle part of impact portion, install the machine in the mounting hole and press the prefab. The utility model discloses combine the two advantage of integral type cast moulding prefab and machine press forming part, shock resistance is good, can effectually slow down the scouring of molten steel to the centre package.

Description

Tundish composite impact plate with long service life

Technical Field

The utility model relates to a fire-resistant equipment field especially relates to a compound impingement plate of package in middle of long-life.

Background

The tundish is a refractory container used in the steel-making process, receives the impact of molten steel cast from a ladle in the continuous casting process, and then is distributed into each crystallizer through a tundish nozzle. The position of the tundish for receiving molten steel needs to bear stronger static pressure and impact force of the molten steel, and the common tundish working layer material cannot meet the long-time molten steel impact, so that the leakage accident is easy to occur. Therefore, an impact plate or a current stabilizer is generally arranged at the position of the impact area to relieve the impact force of the molten steel and stabilize the flow of the molten steel, so that the continuous work of a working layer is protected. The common tundish impact plate is mainly made of corundum, magnesium or aluminum-magnesium refractory materials and is formed into a prefabricated part through integral casting or is formed through mechanical pressing. Adopt integral type casting forming prefab impingement plate can pour into a mould according to the mould design, and the advantage is the appearance variety, can design into various shapes according to the pouring basket size, and the shortcoming is relatively poor for impingement plate impact resistance such as magnesium brick, aluminium magnesium carbon of relative machine pressure forming, but machine pressure forming impingement plate confines to press and mould influence, and the great and the anomalous impingement plate of appearance of size is difficult to machine pressure forming.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough and provide a compound impingement plate of package in middle of long-life, combine integral type cast moulding prefab and the two advantage of machine press forming part, shock resistance is good, can effectually slow down scouring of molten steel to the package in the middle of.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

The utility model provides a compound impingement plate of package in middle of long-life, it includes that the machine presses the prefab, pours the prefab, the machine is pressed the prefab and is inverted circular truncated cone shape, the top that the machine pressed the prefab is bellied cambered surface, it includes that integrative pours fashioned overflow portion, impact portion, protects the wall portion, impact portion sets up the bottom at middle package, it sets up on the lateral wall of middle package to protect the wall portion, overflow portion sets up the edge in the top side of impact portion, overflow portion is the annular, the cross-section of overflow portion is trapezoidal, protects the laminating of wall portion on the lateral wall of middle package, the mounting hole has been seted up at the middle part of impact portion, install the machine in the mounting hole and press the prefab.

Furthermore, the side of the machine pressing prefabricated part is annularly provided with a convex column.

Further, the thickness of the machine-pressed prefabricated part is 6-8 cm.

Furthermore, the upper part of the outer side surface of the overflow part is in an upward convex arc shape, and the lower part of the outer side surface of the overflow part is in a downward concave arc shape.

Further, the surface of the wall protection part is provided with an arc-shaped overflow groove.

Further, the distance from the bottom of the machine pressing prefabricated part to the bottom of the impact part is 2-4 cm.

The utility model discloses a compound impingement plate of package in middle of long-life combines integral type casting forming prefab and the two advantage of machine press forming part, and shock resistance is good, can effectually slow down scouring of molten steel to the package in the middle of.

Drawings

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

fig. 2 is a schematic top view of the present invention;

in the figure: 1. mechanically pressing the prefabricated part; 2. pouring a prefabricated part; 3. a tundish; 11. a convex column; 21. an overflow section; 22. an impact section; 23. a protective wall portion; 31. a bottom; 32. a side wall; 221. mounting holes; 231. an overflow trough.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

As shown in the figure: the utility model provides a middle package composite impact plate of long-life, it includes that machine presses prefab 1, pours prefab 2, and machine presses prefab 1 to inlay and is adorned in pouring prefab 2.

Machine is pressed prefab 1 and is inverted circular truncated cone shape, and its top is bellied cambered surface, and machine is pressed prefab 1's side annular and is provided with projection 11, is convenient for with pour 2 inseparabler combinations of prefab, promote the joint strength of whole impingement plate.

The pouring prefabricated member 2 comprises an overflow part 21, an impact part 22 and a wall protection part 23 which are integrally poured, wherein the impact part 22 is arranged at the bottom 31 of the tundish 3, the wall protection part 23 is arranged on the side wall 32 of the tundish 3, the overflow part 21 is arranged at the edge of the top side of the impact part 22, the overflow part 21 is annular, the cross section of the overflow part is trapezoidal, because the bottom of the overflow part 21 is firstly contacted with the molten steel falling onto the machine pressing prefabricated member 1, the scouring is serious, the thickness of the bottom of the overflow part 21 is large, the service life of the whole impact plate can be effectively prolonged, the top of the outer side surface of the overflow part 21 is an upwards convex arc, the lower part of the outer side surface of the overflow part 21 is a downwards concave arc, the arc is arranged according to the actual molten steel pouring amount, the molten steel pouring amount is large, the arc is large, and the reverse is small, the molten steel can overflow into the tundish through the top and the outer side, the upper part of the outer side surface of the overflow part 21 is convex, and the lower part is concave, so that the turbulence of molten steel can be effectively reduced, the molten steel can stably flow into the tundish, and the scouring on the four walls of the tundish is reduced. The protective wall part 23 is attached to the side wall 32 of the tundish 3 and is close to one side of the tundish discharge nozzle, so that the molten steel can be effectively prevented from scouring the side wall of the tundish when the tundish pours the molten steel, and in addition, the arc-shaped overflow groove 231 is arranged on the surface of the protective wall part 23, so that the molten steel of the tundish can be converged into the overflow groove 231 to be poured out after most of the molten steel of the tundish is poured, and the molten steel can be prevented from being poured and splashed. The middle part of impact portion 22 has seted up mounting hole 221, installs the machine in the mounting hole 221 and presses prefab 1, and the distance of the bottom of machine pressing prefab 1 distance impact portion 22's bottom is 2-4 cm.

The thickness of the mechanically pressed preform 1 is 6-8 cm.

The novel manufacturing method comprises the following steps: the method comprises the steps of preparing a mechanically-pressed prefabricated part 1 by using an aluminum-magnesium refractory material, erecting a template for pouring the prefabricated part 2, pouring an impact part by using the aluminum-magnesium refractory material in advance for 2-4 cm, placing the mechanically-pressed prefabricated part 1, pouring an overflow part 21, an impact part 22 and a protective wall part 23, baking and forming, and then installing the prefabricated part in a tundish, so that different molds can be used for pouring according to the shapes of different tundishes to be matched with the installation of the tundish, when the poured prefabricated part 2 is scoured and deformed, pouring can be directly carried out again along with the overhaul of the tundish, when the tundish bears molten steel, the prefabricated part 1 is mechanically-pressed by directly impacting the molten steel, the scouring resistance of the prefabricated part 1 is good, the service lives of the whole impact plate and the tundish can be prolonged, when the prefabricated part 1 is scoured and can not normally work at all, the whole impact plate can be detached, reinstallation of a new one, which saves costs.

It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. The utility model provides a compound impingement plate of package in middle of long-life which characterized in that: the prefabricated member comprises a machine pressing prefabricated member (1) and a pouring prefabricated member (2), wherein the machine pressing prefabricated member (1) is in an inverted frustum shape, the top of the machine pressing prefabricated part (1) is a convex cambered surface, the pouring prefabricated part (2) comprises an overflow part (21), an impact part (22) and a protective wall part (23) which are integrally poured and formed, the impact part (22) is arranged at the bottom (31) of the tundish (3), the protective wall part (23) is arranged on the side wall (32) of the tundish (3), the overflow (21) is arranged at the edge of the top side of the impact (22), the overflow (21) is ring-shaped, the cross section of the overflow part (21) is trapezoidal, the protective wall part (23) is attached to the side wall (32) of the tundish (3), the middle part of the impact part (22) is provided with a mounting hole (221), and a mechanical pressing prefabricated part (1) is mounted in the mounting hole (221).

2. The long life tundish composite impact plate of claim 1, wherein: the side surface of the machine pressing prefabricated part (1) is annularly provided with a convex column (11).

3. The long life tundish composite impact plate of claim 1, wherein: the thickness of the machine-pressing prefabricated part (1) is 6-8 cm.

4. The long life tundish composite impact plate of claim 1, wherein: the upper part of the outer side surface of the overflow part (21) is in an upward convex arc shape, and the lower part of the outer side surface of the overflow part is in a downward concave arc shape.

5. The long life tundish composite impact plate of claim 1, wherein: the surface of the protective wall part (23) is provided with an arc-shaped overflow groove (231).

6. The long life tundish composite impact plate of claim 1, wherein: the distance between the bottom of the machine pressing prefabricated part (1) and the bottom of the impact part (22) is 2-4 cm.