CN218693848U

CN218693848U - Aluminum-zirconium-carbon integral immersion type water gap

Info

Publication number: CN218693848U
Application number: CN202222991359.2U
Authority: CN
Inventors: 张坤东
Original assignee: Qingdao Tianlida Refractory Co ltd
Current assignee: Qingdao Tianlida Refractory Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses a whole immersion nozzle of aluminium zirconium carbonaceous matter, include: the water gap comprises a water gap main body, a connecting cavity is formed in the water gap main body, a first side hole is connected to the left side position of the lower end of the connecting cavity, and a second side hole is connected to the right side position of the lower end of the connecting cavity; the mounting groove is formed in the upper end face of the water gap main body, a limiting groove is formed in the outer end face of the mounting groove, an aluminum-zirconium-carbon bowl body is arranged inside the mounting groove, and a liquid inlet is formed in the aluminum-zirconium-carbon bowl body; the refractory fiber net layer is fixedly connected to the outer surface of the water gap main body, and an aluminum-magnesium ring is arranged inside the refractory fiber net layer; the aluminum zirconium carbon crown body is fixedly connected to the lower position inside the water gap main body. This whole immersion nozzle of aluminium zirconium carbonaceous can avoid molten steel deposit in the cavity bottom, and annotates and flow the effect better, has solved the problem that current immersion nozzle is not convenient for supplementary lower liquid.

Description

Aluminum-zirconium-carbon integral immersion type water gap

Technical Field

The utility model relates to an immersion nozzle technical field specifically is a whole immersion nozzle of aluminium zirconium carbonaceous matter.

Background

The submerged nozzle is a refractory casing for pouring which is arranged at the bottom of a tundish in continuous steel casting equipment and is inserted below the liquid level of crystallizer steel, and has the main functions of preventing secondary oxidation and molten steel splashing of pouring flow of the tundish, avoiding the covering slag of the crystallizer from being involved in the molten steel, and improving the flowing state and heat flow distribution of the pouring flow in the crystallizer, thereby promoting the uniform growth of a blank shell in the crystallizer and being beneficial to removing gas and impurities in steel;

the slag-resistant aluminum zirconium carbon submerged nozzle comprises a cylindrical body, wherein a cavity is arranged in the center of the body along the axial direction, the upper end of the cavity penetrates through the top end of the body to form an inlet, a side hole communicated with the cavity is formed in the lower part of the side wall of the body, a slag line area is arranged on the side wall of the body, the slag line area is positioned above the side hole, and a lining is arranged on the inner side wall of the cavity; the inner side wall of the lining is provided with a plurality of channels which are communicated with each other. The utility model discloses in adopt inside lining and channel for the inside lining is strikeed to the molten steel of part, and the channel is strikeed to the molten steel of part, and then alleviates molten steel direct impact immersion nozzle bottom, prevents inside and outside the immersion nozzle to produce higher difference in temperature in the twinkling of an eye and explodes and split.

However, most of the immersion nozzles in the current market still have certain defects, for example, the inlet of the nozzle in the above prior art is bowl-mouth-shaped and concave, when pouring into the nozzle, the molten steel is easy to rebound and splash, which affects the pouring effect, meanwhile, the lower end of the pouring cavity is lower than the side hole, the molten steel is easy to deposit at the bottom of the cavity, and then certain use defects exist, therefore, an aluminum-zirconium-carbon integral immersion nozzle is provided, so as to solve the problems provided in the above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a whole immersion nozzle of aluminium zirconium carbonaceous to current immersion nozzle entrance that proposes in solving above-mentioned background art is that the bowl mouthful formula is sunken, when to the inside pouring in mouth of a river, the easy bounce-back of molten steel splashes, influences the notes and flows the effect, and simultaneously, the lower extreme of pouring cavity is less than the side opening, and the easy deposit of molten steel is in the problem of cavity bottom.

In order to achieve the above purpose, the utility model provides a following technical scheme: an aluminum zirconium carbon monolithic submerged entry nozzle comprising:

the water gap comprises a water gap main body, a connecting cavity is formed in the water gap main body, a lining is fixedly connected to the inner surface of the connecting cavity, a first side hole is connected to the left side position of the lower end of the connecting cavity, and a second side hole is connected to the right side position of the lower end of the connecting cavity;

the mounting groove is formed in the upper end face of the water gap main body, a limiting groove is formed in the outer end face of the mounting groove, an aluminum-zirconium-carbon bowl body is arranged inside the mounting groove, a liquid inlet is formed in the aluminum-zirconium-carbon bowl body, and the outer end face of the aluminum-zirconium-carbon bowl body is integrally and fixedly connected with a connecting block;

the refractory fiber net layer is fixedly connected to the outer surface of the water gap main body, and an aluminum-magnesium ring is arranged inside the refractory fiber net layer;

the aluminum zirconium carbon crown body is fixedly connected to the lower position inside the water gap main body.

Preferably, the mounting groove is connected at the upper end of the connecting cavity, and the limiting grooves are arranged in bilateral symmetry about the vertical center line of the mounting groove.

Preferably, the vertical sections of the mounting groove and the limiting groove are both in trapezoidal arrangement, and the water gap main body is in nested connection with the aluminum zirconium carbon bowl body through the mounting groove.

Preferably, the liquid inlet is spirally arranged, and the lower end of the liquid inlet is communicated with the connecting cavity.

Preferably, the connection blocks are arranged in bilateral symmetry about the vertical center line of the aluminum zirconium carbon bowl body, and the connection blocks are connected with the water gap main body in a clamping manner through limiting grooves.

Preferably, the aluminum-magnesium ring is arranged at the height of the slag line on the outer side of the nozzle body.

Preferably, first side opening and second side opening all are the slope form setting, and first side opening and second side opening keep away from mouth of a river main part vertical center line one end and all are less than first side opening and second side opening and are close to mouth of a river main part vertical center line one end setting to the carbonaceous crown body of aluminium zirconium sets up the below position at first side opening and second side opening junction.

Compared with the prior art, the beneficial effects of the utility model are that: the aluminum-zirconium-carbon integral submerged nozzle can avoid molten steel from depositing at the bottom of the cavity, has better pouring effect and solves the problem that the conventional submerged nozzle is inconvenient to assist in pouring liquid;

1. the submerged nozzle is provided with the refractory fiber net layer and the nozzle main body, the heat preservation effect of the nozzle main body is improved through the refractory fiber net layer, so that the overall thermal stability of the submerged nozzle is better, meanwhile, the nozzle main body and the lining are made of aluminum-zirconium-carbon materials, the heat transfer rate is low, the temperature transfer time is further prolonged, the problem that the nozzle is cracked due to the fact that the temperature of molten steel changes rapidly in the casting process can be avoided, and the practicability is better;

2. the aluminum-zirconium-carbon crown body plays a role in diversion, and molten steel can be prevented from being deposited at the bottom of the connecting cavity;

3. be equipped with the aluminium zirconium carbon body bowl body, go into the liquid mouth and connect the chamber, be the spiral setting through going into the liquid mouth, and go into the lower extreme of liquid mouth and be connected the chamber intercommunication setting, when through going into the liquid mouth to connecting the inside pouring molten steel in chamber, the molten steel receives into the influence of liquid mouth and is vortex formula and flows down, is difficult for splashing, and it is better to annotate the stream effect, has solved the problem that current immersion nozzle is not convenient for assist down the liquid.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is an enlarged schematic structural view of the point B in fig. 3 according to the present invention.

In the figure: 1. a nozzle body; 2. mounting grooves; 3. a limiting groove; 4. an aluminum zirconium carbon bowl body; 5. a liquid inlet; 6. a joining block; 7. a refractory fiber web layer; 8. an aluminum-magnesium ring; 9. a connecting cavity; 10. lining; 11. a first side hole; 12. a second side hole; 13. an aluminum zirconium carbon crown.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an aluminum zirconium carbonaceous monolithic submerged entry nozzle comprising: connection chamber 9 has been seted up to the inside of mouth of a river main part 1, and the internal surface fixedly connected with inside lining 10 of connection chamber 9, and the inside below position fixedly connected with aluminium zirconium carbon crown body 13 of mouth of a river main part 1, the lower extreme left side position of connection chamber 9 is connected with first side hole 11, and the lower extreme right side position of connection chamber 9 is connected with second side hole 12, mounting groove 2 has been seted up to the up end of mouth of a river main part 1, and mounting groove 2 connects the upper end at connection chamber 9, and spacing groove 3 has been seted up to the outer terminal surface of mounting groove 2, the inside of mounting groove 2 is provided with aluminium zirconium carbon bowl body 4, and the liquid inlet 5 has been seted up to the inside of aluminium zirconium carbon bowl body 4, and the outer terminal surface integration fixedly connected with connection piece 6 of aluminium zirconium carbon bowl body 4, combine shown in figure 1 and figure 3, because the liquid inlet 5 is the spiral setting, and the lower extreme that goes into liquid inlet 5 communicates with connection chamber 9 and sets up, when pouring molten steel into the inside of chamber 9 through liquid inlet 5, the molten steel is influenced by liquid inlet 5 and is the vortex formula and is the vortex down, be difficult for the outer fixed fiber layer 7, the inside magnesium ring net layer 7 that splashes of refractory fiber 7 that is provided with fire-resistant fibre.

When the aluminum zirconium carbon integral submerged nozzle is used, firstly, as shown in fig. 1 and fig. 4, the limiting groove 3 is arranged in bilateral symmetry about the vertical central line of the mounting groove 2, the vertical cross sections of the mounting groove 2 and the limiting groove 3 are both in trapezoidal arrangement, the aluminum zirconium carbon bowl body 4 is conveniently taken out and replaced by nesting connection between the mounting groove 2 and the aluminum zirconium carbon bowl body 4, meanwhile, the connecting block 6 is arranged in bilateral symmetry about the vertical central line of the aluminum zirconium carbon bowl body 4, the connecting block 6 is in clamping connection with the nozzle main body 1 through the limiting groove 3, the aluminum zirconium carbon bowl body 4 is limited by the connecting block 6, and the aluminum zirconium carbon bowl body 4 is prevented from rotating;

specifically, as shown in fig. 1, 2 and 4, the aluminum-magnesium ring 8 is disposed at the height of the slag line outside the nozzle body 1, and the aluminum-magnesium ring 8 is made of a magnesium-carbon material, so as to better avoid erosion of fluorine-containing slag to the refractory fiber mesh layer 7 and the nozzle body 1, the first side hole 11 and the second side hole 12 are both disposed in an inclined manner, and one ends of the first side hole 11 and the second side hole 12, which are far away from the vertical center line of the nozzle body 1, are both lower than one ends of the first side hole 11 and the second side hole 12, which are close to the vertical center line of the nozzle body 1, and the aluminum-zirconium-carbon crown 13 is disposed below the joint of the first side hole 11 and the second side hole 12, the aluminum-zirconium-carbon crown 13 plays a role in guiding, and simultaneously avoids molten steel from depositing inside the nozzle body 1, which is the use method of the aluminum-zirconium-carbon integral submerged nozzle.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An aluminum zirconium carbon integral immersion nozzle is characterized in that: the method comprises the following steps:

the inner side of the lower end of the connecting cavity is fixedly connected with a lining, a first side hole is connected to the left side of the lower end of the connecting cavity, and a second side hole is connected to the right side of the lower end of the connecting cavity;

2. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: the mounting groove is connected in the upper end of connecting the chamber, and the spacing groove sets up about the vertical central line bilateral symmetry of mounting groove.

3. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: the vertical sections of the mounting groove and the limiting groove are both in trapezoidal arrangement, and the water gap main body is connected with the aluminum-zirconium-carbon bowl body in a nested manner through the mounting groove.

4. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: the liquid inlet is spirally arranged, and the lower end of the liquid inlet is communicated with the connecting cavity.

5. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: the connection blocks are arranged in bilateral symmetry about the vertical center line of the aluminum zirconium carbon bowl body, and the connection blocks are connected with the water gap main body in a clamping mode through limiting grooves.

6. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: the aluminum-magnesium ring is arranged at the height of the slag line on the outer side of the nozzle body.

7. The aluminum zirconium carbonaceous integral submerged entry nozzle of claim 1, wherein: first side opening and second side opening all are the slope form setting, and first side opening and second side opening keep away from the vertical center line one end of mouth of a river main part and all are less than first side opening and second side opening and are close to the vertical center line one end setting of mouth of a river main part to the carbonaceous crown body of aluminium zirconium sets up the below position at first side opening and second side opening junction.