CN212560340U

CN212560340U - Ladle bottom argon blowing device

Info

Publication number: CN212560340U
Application number: CN202020690203.9U
Authority: CN
Inventors: 景琳琳; 房金乐; 周详; 赵志雄
Original assignee: Shaanxi Steel Group Hanzhong Iron and Steel Co Ltd
Current assignee: Shaanxi Steel Group Hanzhong Iron and Steel Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-19
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses an argon blowing device at bottom of ladle, including the ladle box, open the bottom of ladle box has a plurality of trompils, the top of trompil all is fixed with air brick, the bottom of ladle box still is provided with annular air supply pipe, open at the top of annular air supply pipe has a plurality of gas ports of leading, gas port and trompil one-to-one and be linked together, the bottom of annular air supply pipe is provided with air feed joint, air feed joint and the coaxial setting of annular air supply pipe, annular air supply pipe is linked together through a plurality of branch pipe with air feed joint, the one end of branch pipe lets in the bottom of annular air supply pipe, the other end of branch pipe lets in from air feed joint's lateral wall. The utility model solves the problem that the pressure flow of a plurality of outlets of the ladle bottom argon blowing device in the prior art can not be balanced.

Description

Ladle bottom argon blowing device

Technical Field

The utility model belongs to the technical field of the ladle argon blowing treatment, a ladle bottom argon blowing device is related to.

Background

The argon blowing treatment of the steel ladle is also called molten steel argon blowing treatment, and is a simple external refining method for degassing molten steel and removing non-metallic inclusions. The method has simple process, cheap equipment and obvious refining effect, the argon blowing treatment of the molten steel has important metallurgical significance, the content of dissolved gas in the molten steel can be reduced, the residual non-metallic inclusions in the molten steel can be removed, the components and the temperature of the molten steel are uniform before casting, the casting temperature of the casting can be obviously reduced, the normalization of the continuous casting process is realized, the impact toughness of steel is improved, and the like.

The argon blowing device at the bottom of the steel ladle is just a device for blowing argon to molten steel in the steel ladle, and the argon blowing device at the bottom of the steel ladle used in metallurgy at present realizes blowing argon to the inside molten steel of the steel ladle, but the distribution is not uniform enough when argon is blown in, and a plurality of outlet pressure flows are unable to be balanced, influence the effect of molten steel treatment in the steel ladle, lack the measure of collecting granule in the pipeline simultaneously, easily lead to the pipeline to appear blockking up, and the clearance is not convenient enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an argon blowing device at bottom of ladle has solved the unable balanced problem of a plurality of export pressure flow of argon blowing device at bottom of the ladle that exists among the prior art.

The technical proposal adopted by the utility model is that,

the utility model provides an argon blowing device at bottom of ladle, including the ladle box, open the bottom of ladle box has a plurality of trompils, the top of trompil all is fixed with air brick, the bottom of ladle box still is provided with annular air supply pipe, open at the top of annular air supply pipe has a plurality of gas ports of leading, lead gas port and trompil one-to-one and be linked together, the bottom of annular air supply pipe is provided with air feed joint, air feed joint and the coaxial setting of annular air supply pipe, annular air supply pipe is linked together through a plurality of branch pipe with air feed joint, the one end of branch pipe lets in the bottom of annular air supply pipe, the other end of branch pipe lets in from air feed.

The present invention is also characterized in that,

the bottom of the annular air supply pipe is uniformly provided with air holes, and the branch pipes are communicated with the annular air supply pipe through the air holes.

The air guide ports are uniformly arranged at equal intervals along the top of the annular air supply pipe.

And the inner wall and the bottom of the steel ladle box are respectively paved with a wall-wrapping brick, and the air brick is embedded in the wall-wrapping brick.

The ladle bottom of the case still is fixed with blows the argon seat, and annular air supply pipe, branch pipe and air feed joint all set up in blowing the argon seat, and the bottom that the air feed connects stretches out and blows the argon seat and be linked together with the argon gas connecting pipe.

A pressure gauge is arranged on the argon connecting pipe;

the bottom of connecting pipe communicates with each other with handling the case, and the lateral wall of handling the case communicates with each other there is the argon gas air supply pipe outward, handles the bottom of the case portion and is provided with the interface, and interface upper portion is connected with the wavy buffer baffle that the multiunit is parallel to each other through the link tilting, and swing joint has the cleaning box on the interface.

The argon gas supply pipe is provided with a flow meter.

The interface is the hickey, and the cleaning box is connected with the interface through the rotation.

The beneficial effects of the utility model are that

One, be equipped with a plurality of gas ports through being equipped with annular air supply pipe and carry out the air feed to the air brick of ladle incasement side bottom, cooperate a plurality of connecting branch pipe simultaneously and carry out the air feed for annular air supply pipe, connect through annular air supply pipe between a plurality of gas ports of leading, make the air feed flow and the pressure of each air feed interface switch on the equilibrium through annular air supply pipe, realize carrying out comprehensive balanced argon blowing to ladle incasement side molten steel, the improvement that is showing is to ladle incasement molten steel degasification and get rid of non-metallic inclusion processing effect, blow the practicality of argon device at the bottom of the reinforcing this ladle.

Two, be connected with through the argon gas connecting pipe bottom that sets up perpendicularly and handle the case, the argon gas air supply pipe that connects in handling the case outside can get into when leading-in argon gas and handle the case, gas and the granule impurity in the pipeline drop down in handling the case and get into through the screw interface and collect in the clearance case, the argon gas is through handling the case and enter into in the argon gas connecting pipe cooperation argon blowing seat to ladle incasement side molten steel blow the argon gas and handle, the impurity staff who enters into in the clearance case can be through taking off the clearance case spiral and clear up, it is convenient to clear up, effectually prevent that the air supply line from blockking up, wave type buffer baffle in the simultaneous processing case can prevent that the granule impurity secondary that the argon gas will collect from kicking up and getting into in the pipeline.

Drawings

FIG. 1 is a schematic view of the overall structure of a ladle bottom argon blowing device of the present invention;

FIG. 2 is a schematic structural view of an argon blowing seat in the ladle bottom argon blowing device of the present invention;

FIG. 3 is a top view of an annular gas supply pipe in a ladle bottom argon blowing device of the present invention;

fig. 4 is a schematic structural diagram of a treatment box in the ladle bottom argon blowing device of the utility model.

In the figure, 1, a ladle box; 2. wrapping wall bricks; 3. air permeable bricks; 4. blowing an argon seat; 5. an argon connecting pipe; 6. a pressure gauge; 7. a treatment tank; 71. a wave-shaped buffer baffle plate; 72. a screw interface; 73. cleaning the box; 8. an argon gas supply pipe; 9. a flow meter; 10. an annular gas supply pipe; 11. connecting branch pipes; 12. a gas supply joint; 13. an air guide port; 14. and connecting the bracket.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

A ladle bottom argon blowing device is shown in figures 1, 2 and 3 and comprises a ladle box 1, wherein the bottom of the ladle box 1 is provided with a plurality of openings, the tops of the openings are all fixed with air bricks 3, the bottom inner wall and the bottom of the ladle box 1 are respectively paved with wall bricks 2, the air bricks 3 are embedded in the wall bricks 2, the bottom of the ladle box 1 is also provided with an annular air supply pipe 10, the top of the annular air supply pipe 10 is provided with a plurality of air guide ports 13, the air guide ports 13 are uniformly arranged at equal intervals along the top of the annular air supply pipe 10, the air guide ports 13 are in one-to-one correspondence with the openings and are communicated with the openings, the bottom of the annular air supply pipe 10 is provided with an air supply connector 12, the air supply connector 12 is coaxially arranged with the annular air supply pipe 10, the annular air supply pipe 10 is communicated with the air supply connector 12 through a plurality of branch pipes 11, one end of each branch pipe 11 is introduced into the bottom of the annular air supply pipe 10, the bottom of the, the other end of the branch pipe 11 opens from the side wall of the gas supply connector 12.

An argon blowing seat 4 is further fixed at the bottom of the steel ladle box 1, an annular gas supply pipe 10, a branch pipe 11 and a gas supply connector 12 are all arranged in the argon blowing seat 4, the bottom of the gas supply connector 12 extends out of the argon blowing seat 4 and is communicated with an argon connecting pipe 5, and a pressure gauge 6 is arranged on the argon connecting pipe 5;

as shown in fig. 4, the bottom of the connecting pipe 5 is communicated with the processing box 7, the sidewall of the processing box 7 is externally communicated with an argon gas supply pipe 8, the argon gas supply pipe 8 is provided with a flow meter 9, the bottom of the processing box 7 is provided with a connector 72, the connector 72 is a threaded connector, the cleaning box 73 is connected with the connector 72 through rotation, the upper part of the connector 72 is obliquely connected with a plurality of groups of wave-shaped buffer baffles 71 which are parallel to each other through a connecting frame, and the connector 72 is movably connected with the cleaning box 73.

The working principle is as follows: this argon blowing device at bottom of ladle uses, supply argon gas through argon gas connecting pipe 5 in to air feed joint 12, then inject the argon gas into annular air supply pipe 10 through the multiunit connecting branch 11 of connecting on the air feed joint 12, finally lead in gas port 13 on the annular air supply pipe 10 with the leading-in air brick 3 of 1 inboard of ladle box of argon gas, discharge out through air brick 3 and carry out degasification and get rid of non-metallic inclusion and handle to the inboard molten steel of ladle box 1, through leading a plurality of gas ports 13 and setting up on annular air supply pipe 10, make the flow and the pressure of argon gas can switch on the equilibrium each other through annular air supply pipe 10 in a plurality of gas ports 13, realize carrying out comprehensive balanced argon blowing to 1 inboard ladle box, improve the treatment effect to the molten steel.

Simultaneously, when argon gas connecting pipe 5 supplys the argon gas, can supply the argon gas to handling case 7 in through argon gas air supply pipe 8, then enter into argon gas connecting pipe 5 by handling case 7 again, when the argon gas gets into and handles case 7, gaseous and the granule impurity in the pipeline falls and is getting into clearance case 73 through screw interface 72 and collect in handling case 7, the granule impurity staff who enters into in clearance case 73 can be through taking off clearance case 73 spiral and clear up, the clearance is convenient, effectually prevent that the air supply pipeline from blockking up, handle the wave type buffer baffle 71 in the case 7 simultaneously and can prevent that the granule impurity secondary that the argon gas will collect from arousing the entering pipeline in.

Claims

1. The ladle bottom argon blowing device is characterized by comprising a ladle box (1), wherein the bottom of the ladle box (1) is provided with a plurality of openings, the top of the open pore is fixed with an air brick (3), the bottom of the steel ladle box (1) is also provided with an annular air supply pipe (10), the top of the annular gas supply pipe (10) is provided with a plurality of gas guide ports (13), the gas guide ports (13) are in one-to-one correspondence with the openings and are communicated with the openings, the bottom of the annular air supply pipe (10) is provided with an air supply joint (12), the air supply joint (12) and the annular air supply pipe (10) are coaxially arranged, the annular air supply pipe (10) is communicated with the air supply joint (12) through a plurality of branch pipes (11), one end of the branch pipe (11) is communicated with the bottom of the annular gas supply pipe (10), and the other end of the branch pipe (11) is communicated with the side wall of the gas supply joint (12).

2. The ladle bottom argon blowing device according to claim 1, wherein the bottom of the annular gas supply pipe (10) is uniformly provided with gas holes, and the branch pipe (11) is communicated with the annular gas supply pipe (10) through the gas holes.

3. The ladle bottom argon blowing apparatus according to claim 1, wherein the gas guide ports (13) are provided at equal intervals along the top of the annular gas supply pipe (10).

4. The ladle bottom argon blowing device according to claim 1, wherein the inner wall and the bottom of the ladle box (1) are both paved with wall covering bricks (2), and the air brick (3) is embedded in the wall covering bricks (2).

5. The ladle bottom argon blowing device according to claim 1, wherein an argon blowing seat (4) is further fixed at the bottom of the ladle box (1), the annular gas supply pipe (10), the branch pipe (11) and the gas supply connector (12) are all arranged in the argon blowing seat (4), and the bottom of the gas supply connector (12) extends out of the argon blowing seat (4) and is communicated with the argon gas connecting pipe (5).

6. The ladle bottom argon blowing device according to claim 5, wherein a pressure gauge (6) is provided on the argon gas connection pipe (5).

7. The ladle bottom argon blowing device according to claim 5, wherein the bottom of the argon connecting pipe (5) is communicated with a treatment box (7), an argon gas supply pipe (8) is communicated with the outside of the side wall of the treatment box (7), the bottom of the treatment box (7) is provided with an interface (72), the upper part of the interface (72) is obliquely connected with a plurality of groups of wave-shaped buffer partitions (71) which are parallel to each other through a connecting frame, and the interface (72) is movably connected with a cleaning box (73).

8. The ladle bottom argon blowing apparatus according to claim 7, wherein the argon gas supply pipe (8) is provided with a flow meter (9).

9. The ladle bottom argon blowing device according to claim 7, characterized in that the interface (72) is a threaded interface, and the cleaning tank (73) is rotatably connected with the interface (72).