CN214023466U

CN214023466U - Blowing-free production device for steel ladle air brick

Info

Publication number: CN214023466U
Application number: CN202121193692.8U
Authority: CN
Inventors: 刘子臣; 刘峰
Original assignee: Yingkou Fulei Refractory Co ltd
Current assignee: Yingkou Fulei Refractory Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-24
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a purging-free production device for steel ladle air brick, which relates to the technical field of steel-making production, and comprises a steel ladle body and an air storage component, wherein the air storage component is fixedly connected under the steel ladle body, one side air inlet end of the air storage component is fixedly connected with a first air pipe, one end of the first air pipe is fixedly connected with a first three-way pipe, and the first air pipe is communicated with the inside of the first three-way pipe, the device is in an argon supply state in the steel ladle lifting process and the casting forming process, therefore, the molten steel can not cause the situation of argon obstruction caused by steel bonding or slag bonding on the surface of the air brick due to temperature difference and temperature drop, the oxygen purging and slag bonding process is avoided, the service life of the air brick is prolonged, the device achieves about 15% saving of refractory material cost through arranging an air storage tank and optimizing design of a pipeline, the energy consumption required by baking the steel ladle is reduced by about 10%, and the labor intensity of workers is reduced, the cleaning operation of blowing is saved, and the production efficiency is greatly improved.

Description

Blowing-free production device for steel ladle air brick

Technical Field

The utility model relates to a steelmaking production technical field specifically is a ladle air brick exempts from to sweep apparatus for producing.

Background

The bottom argon blowing process for supplying argon to molten steel in a steel ladle by using the air brick in the current steel-making production process is widely applied, the process can accelerate the alloy melting speed, homogenize the temperature and components of the molten steel, improve the cleanliness of the molten steel, and simultaneously the service life of the air brick directly determines the service life of the steel ladle, so that the consumption of refractory materials, energy consumption, production efficiency and the like of a steel mill are influenced, and the process is a cost factor which is focused on by various steel enterprises.

However, the common argon supply mode in each steel mill at present is that the fixed air sources at the tapping station and the refining station are directly connected with the air brick through pipelines to realize the bottom argon blowing process, the steel ladle is in an argon-free state in the hoisting process and the casting forming process, molten steel in the steel ladle can form steel or slag on the surface of the air brick due to temperature difference and temperature drop, so that argon is not communicated, residual steel on the surface of the air brick must be blown away by oxygen for the normal use of the next furnace, the service life of the air brick is seriously damaged by high temperature and chemical erosion generated by oxygen cleaning, and the normal use of the steel ladle is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a ladle air brick exempts from to sweep apparatus for producing has solved the process that air brick surface bonded steel, slagging scorification and oxygen swept and has harmd air brick life's problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a ladle air brick exempts from to sweep apparatus for producing, includes ladle body and gas storage subassembly, gas storage subassembly fixed connection is under the ladle body, one side air inlet end fixedly connected with first trachea of gas storage subassembly, the one end fixedly connected with first three-way pipe of first trachea, and first trachea is linked together with the inside of first three-way pipe, the fixed main air inlet that has concatenated in top of first three-way pipe, the air inlet has been seted up at main air inlet's top, one side gas outlet fixedly connected with second trachea of first three-way pipe, the tracheal intermediate position of second is fixed to have concatenated the second check valve, the tracheal one end fixedly connected with second three-way pipe of second, the bottom fixedly connected with third check valve of second three-way pipe, and the top of second three-way pipe is through third trachea fixedly connected with air brick.

The gas storage assembly comprises a gas storage tank, one side of the gas storage tank is fixedly connected with a first one-way valve, and the other side of the gas storage tank is fixedly connected with a pressure stabilizing valve.

Furthermore, a safety valve is fixedly connected to the middle position of the front face of the gas storage tank, and the gas storage tank is fixedly welded to the bottom of the ladle body.

Furthermore, the pressure stabilizing valve is connected with the bottom end of the third one-way valve in series through a fourth air pipe.

Furthermore, lifting lugs are fixedly connected to the front face and the back face of the steel ladle body, and molten steel is arranged in a cavity inside the steel ladle body.

Furthermore, a steel ladle lining is fixedly arranged in the inner wall of the steel ladle body, and the air brick penetrates through the inside of the steel ladle lining and is communicated with the inside of the steel ladle body at the topmost end.

Furthermore, four corners of the bottom of the ladle body are fixedly connected with ladle bottom feet which are distributed in a rectangular array.

Advantageous effects

The utility model provides a ladle air brick exempts from to sweep apparatus for producing. Compared with the prior art, the method has the following beneficial effects:

1. a purging-free production device for air brick of steel ladle comprises a steel ladle body and an air storage component, wherein the air storage component is fixedly connected under the steel ladle body, a first air pipe is fixedly connected with an air inlet end on one side of the air storage component, one end of the first air pipe is fixedly connected with a first three-way pipe, the first air pipe is communicated with the inside of the first three-way pipe, an air inlet main pipe is fixedly connected in series with the top of the first three-way pipe, an air inlet is formed in the topmost end of the air inlet main pipe, a second air pipe is fixedly connected with an air outlet on one side of the first three-way pipe, a second one-way valve is fixedly connected in series with the middle position of the second air pipe, one end of the second air pipe is fixedly connected with a second three-way pipe, a third one-way valve is fixedly connected with the bottom end of the second three-way pipe, the top end of the second three-way pipe is fixedly connected with an air brick through the third air pipe, and the purging-free production device is in an argon supply state in the steel ladle lifting process and the casting forming process, therefore, the condition that argon is not communicated due to steel bonding or slag bonding on the surface of the air brick caused by temperature difference and temperature drop of the molten steel is avoided, the process of oxygen blowing and slag bonding is avoided, the service life of the air brick is prolonged, and the aim of saving cost is fulfilled.

2. The utility model provides a ladle air brick exempts from to sweep apparatus for producing, the device reaches resistant material cost and saves about 15% through setting up the gas holder and to the optimal design of pipeline, and the ladle toasts required energy resource consumption and descends about 10% to make workman intensity of labour descend, sparingly sweep the clearance operation, improved production efficiency greatly.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

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

fig. 4 is the schematic diagram of the gas storage assembly of the present invention.

In the figure: 1. a ladle body; 2. a gas storage component; 201. a gas storage tank; 202. a first check valve; 203. a pressure maintaining valve; 204. a safety valve; 205. mounting a plate; 3. a first air pipe; 4. a first three-way pipe; 5. an intake manifold; 6. an air inlet; 7. a second air pipe; 8. a second one-way valve; 9. a second three-way pipe; 10. a third air pipe; 11. a fourth gas pipe; 12. air permeable bricks; 13. a third check valve; 16. lifting lugs; 17. molten steel; 18. steel ladle lining; 19. and (5) bottom feet of the ladle.

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. 1-3, the present invention provides a technical solution: a blowing-free production device for steel ladle air brick comprises a steel ladle body 1 and an air storage component 2, wherein the air storage component 2 is fixedly connected under the steel ladle body 1, an air inlet end on one side of the air storage component 2 is fixedly connected with a first air pipe 3, one end of the first air pipe 3 is fixedly connected with a first three-way pipe 4, the first air pipe 3 is communicated with the inside of the first three-way pipe 4, the top of the first three-way pipe 4 is fixedly connected with an air inlet main pipe 5 in series, the topmost end of the air inlet main pipe 5 is provided with an air inlet 6, an air outlet on one side of the first three-way pipe 4 is fixedly connected with a second air pipe 7, the middle position of the second air pipe 7 is fixedly connected with a second one-way valve 8 in series, one end of the second air pipe 7 is fixedly connected with a second three-way pipe 9, the bottom end of the second three-way pipe 9 is fixedly connected with a third one-way valve 13, and the top end of the second three-way pipe 9 is fixedly connected with an air brick 12 through a third air pipe 10, pressure stabilizing valve 203 is connected in series with the bottom of third check valve 13 through fourth trachea 11, the equal fixedly connected with lug 16 in the front and the back of ladle body 1, and be provided with molten steel 17 in the inside cavity of ladle body 1, the fixed ladle lining 18 that is provided with in the inner wall of ladle body 1, air brick 12 runs through the inside of ladle lining 18, and top and ladle body 1 are inside to be linked together, the equal fixedly connected with ladle footing 19 in four turnings in bottom of ladle body 1, ladle footing 19 is the rectangular array and distributes.

Referring to fig. 4, the gas storage assembly 2 includes a gas storage tank 201, one side of the gas storage tank 201 is fixedly connected with a first one-way valve 202, the other side of the gas storage tank 201 is fixedly connected with a pressure stabilizing valve 203, a safety valve 204 is fixedly connected to the middle position of the front surface of the gas storage tank 201, and the gas storage tank 201 is fixedly welded at the bottom of the ladle body 1.

When the gas storage tank is used under the working condition with a fixed gas source, firstly, the gas source is fixedly connected with a gas inlet 6, the gas flows to a second three-way pipe 9 through a first three-way pipe 4, a second one-way valve 8 arranged between the first three-way pipe 4 and the second three-way pipe 9 prevents the leakage of argon gas, then the gas enters the interior of the ladle body through a third gas pipe 10 and a gas permeable brick 12 to participate in the smelting process of molten steel, the fixed gas source provides argon gas for smelting steel and stores the gas in the gas storage tank 201 through the first three-way pipe 4, in addition, in order to avoid the operation process of purging the gas permeable brick by oxygen, the gas storage tank 201 arranged at the bottom of the ladle body 1 ensures that the gas is always in an argon blowing state in the processes of molten steel lifting and casting molding, the fixed gas source is separated in the lifting process, the gas in the gas storage tank 201 flows the argon gas in the interior of the gas storage tank through a pressure stabilizing valve 203 and flows through a fourth gas pipe 11 and a third one-way valve 13 to enter the gas permeable brick 12, the argon support is continuously provided for the ladle body 1, wherein a first one-way valve 202, a second one-way valve 8 and a third one-way valve 13 are arranged on a connecting pipeline for preventing argon from leaking, a pressure stabilizing valve 203 is arranged at the outlet of the gas storage tank 201 for meeting the process requirement, and a safety valve 204 is arranged on the gas storage tank 201 for ensuring safety.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 ladle air brick exempts from to sweep apparatus for producing, includes ladle body (1) and gas storage subassembly (2), gas storage subassembly (2) fixed connection is under ladle body (1), its characterized in that: a first air pipe (3) is fixedly connected with an air inlet end at one side of the air storage component (2), one end of the first air pipe (3) is fixedly connected with a first three-way pipe (4), the first air pipe (3) is communicated with the inside of the first three-way pipe (4), the top of the first three-way pipe (4) is fixedly connected with an air inlet main pipe (5) in series, an air inlet (6) is arranged at the topmost end of the air inlet main pipe (5), a second air pipe (7) is fixedly connected with an air outlet at one side of the first three-way pipe (4), a second one-way valve (8) is fixedly connected in series at the middle position of the second air pipe (7), one end of the second air pipe (7) is fixedly connected with a second three-way pipe (9), the bottom end of the second three-way pipe (9) is fixedly connected with a third one-way valve (13), the top end of the second three-way pipe (9) is fixedly connected with an air brick (12) through a third air pipe (10);

the gas storage component (2) comprises a gas storage tank (201), one side of the gas storage tank (201) is fixedly connected with a first one-way valve (202), and the other side of the gas storage tank (201) is fixedly connected with a pressure stabilizing valve (203).

2. The ladle air brick purging-free production device as claimed in claim 1, wherein: the middle position of the front surface of the gas storage tank (201) is fixedly connected with a safety valve (204), and the gas storage tank (201) is fixedly welded at the bottom of the ladle body (1).

3. The ladle air brick purging-free production device as claimed in claim 1, wherein: the pressure stabilizing valve (203) is connected with the bottom end of the third one-way valve (13) in series through a fourth air pipe (11).

4. The ladle air brick purging-free production device as claimed in claim 1, wherein: lifting lugs (16) are fixedly connected to the front face and the back face of the ladle body (1), and molten steel (17) is arranged in a cavity in the ladle body (1).

5. The ladle air brick purging-free production device as claimed in claim 4, wherein: a ladle lining (18) is fixedly arranged in the inner wall of the ladle body (1), the air brick (12) penetrates through the inside of the ladle lining (18), and the topmost end of the air brick is communicated with the inside of the ladle body (1).

6. The ladle air brick purging-free production device as claimed in claim 1, wherein: four corners of the bottom of the ladle body (1) are fixedly connected with ladle bottom feet (19), and the ladle bottom feet (19) are distributed in a rectangular array.