CN213437155U

CN213437155U - Slab continuous casting tundish capable of reducing casting residue of tundish

Info

Publication number: CN213437155U
Application number: CN202022334246.6U
Authority: CN
Inventors: 陈明全; 张毅; 刘勇
Original assignee: Jinan Baima Huayi Refractory Co ltd
Current assignee: Jinan Baima Huayi Refractory Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-15
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a reduce middle package and water surplus slab continuous casting tundish, including middle package body, middle package body includes inlayer and skin, the inlayer with by fixed heat insulation layer, buffer layer, support enhancement layer and the insulating layer of being equipped with outside to in proper order between the skin, it is sunken to have seted up middle package body bottom, the sprue gate has been seted up to sunken bottom. Has the advantages that: the heat insulation layer and the heat insulation layer are arranged to play a role in heat insulation and heat insulation, so that the energy-saving effect of the continuous casting tundish can be improved, the heat capacity can be reduced, the using amount of refractory materials can be reduced under the condition of not influencing the service life, the heat capacity can be reduced, the tapping temperature can be effectively reduced under the condition of ensuring the temperature of molten steel, the service life of the ladle lining can be prolonged, and good economic benefit can be obtained; through being equipped with support enhancement layer and buffer layer, improved the whole use intensity of middle package greatly, guaranteed the stability of structure to the life of middle package has been prolonged.

Description

Slab continuous casting tundish capable of reducing casting residue of tundish

Technical Field

The utility model relates to a middle package particularly, relates to a middle package of remaining slab continuous casting is watered to package in the middle of reducing.

Background

At present, the prices of iron ore powder, scrap steel and other raw materials in the market are in high-order operation, the operation cost of iron and steel enterprises is high, and the profit margin is further narrowed. The effort of reducing the cost and improving the profit level becomes a second choice for steel enterprises. In the cost composition of the slab continuous casting process, the molten steel consumption accounts for more than 95%, so that the effort is also made on how to reduce the casting residue of the tundish and improve the molten steel yield by optimizing the inner cavity structure of the tundish so as to effectively reduce the molten steel consumption.

The prior tundish has a single structure, so that the prior tundish has simple function and low integral strength, reduces the service life, has larger capacity in the continuous slab casting tundish for ensuring the stable connection when changing the ladle, thereby bringing more casting residue of the tundish, increasing the molten steel consumption, reducing the molten steel yield of the continuous slab casting and further causing the cost rise of the continuous slab casting.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ladle in the middle of the surplus slab continuous casting is watered to the ladle in the middle of reducing to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a reduce middle package and water surplus slab continuous casting middle package, includes the middle package body, the middle package body includes inlayer and skin, the inlayer with by interior fixed heat insulation layer, buffer layer, support enhancement layer and the insulating layer of being equipped with in proper order outside to between the skin, it is sunken to have seted up middle package body bottom, the sprue gate has been seted up to sunken bottom.

Furthermore, a protective layer is arranged on the outer side of the outer layer.

Further, the heat insulation layer is made of a heat insulation board material.

Further, the heat insulating layer is made of rock wool board materials.

Furthermore, the supporting and reinforcing layer comprises a first supporting layer and a second supporting layer, and a plurality of reinforcing ribs are arranged between the first supporting layer and the second supporting layer.

Furthermore, the bottom of the tundish body is positioned on one side of the recess, and a dam is arranged on the bottom of the dam and provided with a steel flowing hole.

The utility model provides a ladle in middle of surplus slab continuous casting is watered to ladle in middle of reducing, beneficial effect as follows:

(1) the heat insulation layer and the heat insulation layer are arranged to play a role in heat insulation and heat insulation, so that the energy-saving effect of the continuous casting tundish can be improved, the heat capacity can be reduced, the using amount of refractory materials can be reduced under the condition of not influencing the service life, the heat capacity can be reduced, the tapping temperature can be effectively reduced under the condition of ensuring the temperature of molten steel, the service life of the ladle lining can be prolonged, and good economic benefit can be obtained; through being equipped with support enhancement layer and buffer layer, improved the whole use intensity of middle package greatly, guaranteed the stability of structure to the life of middle package has been prolonged.

(2) The protective layer is arranged to protect the outer layer; the tundish wall at the pouring gate of the tundish is provided with the recess, so that the area of the pouring gate of the tundish is lower than other places of the tundish, the critical height of the molten steel level of the tundish is reduced, and meanwhile, the bottom of the dam of the tundish is provided with the steel flowing hole, so that the molten steel at one side of the dam far away from the pouring gate area can flow into the area of the pouring gate, the purpose of reducing the pouring surplus of the tundish is achieved, the problems of excessive pouring surplus of the tundish and low molten steel yield in the slab production process are effectively solved, the pouring cost is reduced, and raw materials are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a slab continuous casting tundish according to an embodiment of the present invention, to reduce the amount of residual material in the tundish;

fig. 2 is a partial cross-sectional view of a slab continuous casting tundish according to an embodiment of the present invention, which reduces the amount of tundish used.

Reference numerals:

1. a tundish body; 2. an inner layer; 3. an outer layer; 4. a heat insulating layer; 5. a buffer layer; 6. a support reinforcing layer; 7. a thermal insulation layer; 8. a pouring gate; 9. recessing; 10. a protective layer; 11. a first support layer; 12. a second support layer; 13. reinforcing ribs; 14. blocking a dam; 15. and (4) steel flowing holes.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

the first embodiment is as follows:

referring to fig. 1-2, according to the embodiment of the present invention, a slab continuous casting tundish for reducing casting residue of a tundish includes a tundish body 1, the tundish body 1 includes an inner layer 2 and an outer layer 3, a heat insulating layer 4, a buffer layer 5, a support reinforcing layer 6 and a heat insulating layer 7 are sequentially and fixedly disposed between the inner layer 2 and the outer layer 3 from inside to outside, a recess 9 is disposed at the bottom of the tundish body 1, a pouring gate 8 is disposed at the bottom of the recess 9, the heat insulating layer 4 and the heat insulating layer 7 are disposed to perform heat insulating and heat insulating functions, so as to improve the energy saving effect and reduce the heat capacity of the continuous casting tundish, reduce the amount of refractory material without affecting the service life, reduce the heat capacity, effectively reduce the tapping temperature, prolong the service life of the ladle lining, and obtain good economic benefits; through being equipped with support enhancement layer 6 and buffer layer 5, improved the whole use intensity of middle package greatly, guaranteed the stability of structure to the life of middle package has been prolonged.

Example two:

referring to fig. 1-2, for the outer layer 3, a protective layer 10 is disposed outside the outer layer 3. For the insulating layer 4, the insulating layer 4 is made of a heat insulating board material. For the heat insulation layer 7, the heat insulation layer 7 is made of rock wool board material. For the supporting and reinforcing layer 6, the supporting and reinforcing layer 6 includes a first supporting layer 11 and a second supporting layer 12, and a plurality of reinforcing ribs 13 are disposed between the first supporting layer 11 and the second supporting layer 12. For the tundish body 1, a dam 14 is arranged at the bottom of the tundish body 1 and on one side of the recess 9, a steel flowing hole 15 is formed at the bottom of the dam 14, and the protective layer 10 is arranged to protect the outer layer; the tundish wall at the pouring port 8 of the tundish is provided with the recess 9, so that the area of the pouring port 8 of the tundish is lower than other places of the tundish, the critical height of the molten steel level of the tundish is reduced, and meanwhile, the bottom of the dam 14 of the tundish is provided with the steel flowing hole 15, so that the molten steel at one side of the dam 14, which is far away from the area of the pouring port 8, can flow into the area of the pouring port 8, the purpose of reducing the pouring surplus of the tundish is achieved, the problems of excessive pouring of the tundish and low molten steel yield in the slab production process are effectively solved, the pouring cost is reduced, and raw materials are saved.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the heat insulation layer 4 and the heat insulation layer 7 are arranged to play a role in heat insulation and heat insulation, so that the energy-saving effect of the continuous casting tundish can be improved, the heat capacity can be reduced, the using amount of refractory materials can be reduced under the condition of not influencing the service life, the heat capacity can be reduced, the tapping temperature can be effectively reduced under the condition of ensuring the temperature of molten steel, the service life of a ladle lining can be prolonged, and good economic benefits can be obtained; through being equipped with support enhancement layer 6 and buffer layer 5, improved the whole use intensity of middle package greatly, guaranteed the stability of structure to the life of middle package has been prolonged. The protective layer 10 is arranged to protect the outer layer; the tundish wall at the pouring port 8 of the tundish is provided with the recess 9, so that the area of the pouring port 8 of the tundish is lower than other places of the tundish, the critical height of the molten steel level of the tundish is reduced, and meanwhile, the bottom of the dam 14 of the tundish is provided with the steel flowing hole 15, so that the molten steel at one side of the dam 14, which is far away from the area of the pouring port 8, can flow into the area of the pouring port 8, the purpose of reducing the pouring surplus of the tundish is achieved, the problems of excessive pouring of the tundish and low molten steel yield in the slab production process are effectively solved, the pouring cost is reduced, and raw materials are saved.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a reduce middle package and water surplus slab continuous casting tundish, a serial communication port, including middle package body (1), middle package body (1) includes inlayer (2) and skin (3), inlayer (2) with fix in proper order by interior outside between skin (3) and be equipped with heat insulation layer (4), buffer layer (5), support enhancement layer (6) and insulating layer (7), sunken (9) have been seted up to middle package body (1) bottom, pouring gate (8) have been seted up to sunken (9) bottom.

2. A slab casting tundish according to claim 1, characterised in that the outer layer (3) is provided with a protective layer (10) on the outside.

3. The slab continuous casting tundish capable of reducing the casting residue of the tundish according to claim 2, wherein the heat insulating layer (4) is made of a heat insulating plate material.

4. The slab continuous casting tundish capable of reducing the casting residue of the tundish according to claim 3, wherein the heat insulation layer (7) is made of rock wool board material.

5. A slab continuous casting tundish according to claim 4, characterised in that the supporting and reinforcing layer (6) comprises a first supporting layer (11) and a second supporting layer (12), and a plurality of reinforcing ribs (13) are provided between the first supporting layer (11) and the second supporting layer (12).

6. The slab continuous casting tundish capable of reducing the casting residue of the tundish according to claim 5, wherein a dam (14) is arranged at the bottom of the tundish body (1) and on one side of the recess (9), and a steel flowing hole (15) is formed at the bottom of the dam (14).