CN217775512U

CN217775512U - Ladle flat plate argon blowing and sweeping device

Info

Publication number: CN217775512U
Application number: CN202221661688.4U
Authority: CN
Inventors: 任涛; 谢基表; 周伟; 刘林; 朱韶哲; 胡正祥; 王涛; 武剑; 赵梓云; 陈旭; 吴玉强
Original assignee: Rizhao Steel Holding Group Co Ltd
Current assignee: Rizhao Steel Holding Group Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-11
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a ladle flat argon blowing and purging device, belonging to a steel production accessory, comprising a base, a telescopic cylinder and a purging assembly; the bottom of the telescopic cylinder is fixed on the base, and the upper end of the telescopic cylinder is connected with the purging assembly; the purging assembly comprises a purging pipe head, a hard pipe and a hose; the lower part of the middle section of the hard pipe is connected with the top of the telescopic cylinder; the rear end of the hard pipe is connected with a hose through an air supply electromagnetic valve, the front end of the hard pipe is connected with a purging pipe head, and the hose, the hard pipe and the purging pipe head form a compressed air purging pipeline; the purging pipe head is opposite to the ladle argon blowing flat plate. Compared with the prior art, the utility model discloses can improve the dull and stereotyped argon blowing leakproofness of ladle.

Description

Ladle flat plate argon blowing and purging device

Technical Field

The utility model relates to a steel production accessory, in particular to a ladle flat plate argon blowing and sweeping device.

Background

The argon blowing treatment of the steel ladle, also called molten steel argon blowing treatment, is a very important link in the steel-making process. Blowing argon at the bottom of the ladle into molten steel, dispersing the argon in the molten steel in a bubble form and floating; the surrounding molten steel is driven by buoyancy to flow in the steel ladle, so that the alloy, solvent and the like added in the molten steel are molten at an accelerated speed, the uniformity of the steel components and the temperature and the floating of inclusions are promoted, the non-metallic inclusions and harmful gas in the steel are removed, and the aim of refining the molten steel is fulfilled.

In order to realize ladle bottom argon blowing refining, argon blowing pipelines of two independent devices of a ladle and a ladle transport trolley are butted, and the flat plate type butt joint device is generally adopted by various steel mills at present due to the characteristics of simple butt joint operation, high fault tolerance rate and the like. The flat plate type butt joint device adopts the sealing ring for sealing, ladle scum can be generated in the actual production process, the sealing ring is damaged, the service life of the sealing ring is shortened, and the problem of argon blowing and air leakage of a ladle flat plate can be further caused.

SUMMERY OF THE UTILITY MODEL

The technical task of the utility model is not enough to above prior art, provides a dull and stereotyped argon blowing of ladle sweeps device, sweeps the function through realizing that the dull and stereotyped argon blowing sealing washer deposition of ladle is automatic, guarantees reliable, the effective contact of ladle and dull and stereotyped sealing washer, improves the dull and stereotyped argon blowing leakproofness of ladle.

The technical proposal of the utility model for solving the technical problem is that: the utility model provides a ladle flat plate argon blowing sweeps device which characterized in that: the device comprises a base, a telescopic cylinder and a purging assembly; the bottom of the telescopic cylinder is fixed on the base, and the upper end of the telescopic cylinder is connected with the purging assembly; the purging assembly comprises a purging pipe head, a hard pipe and a hose; the lower part of the middle section of the hard pipe is connected with the top of the telescopic cylinder; the rear end of the hard pipe is connected with a hose through an air supply electromagnetic valve, the front end of the hard pipe is connected with a purging pipe head, and the hose, the hard pipe and the purging pipe head form a compressed air purging pipeline; the purging pipe head is opposite to the ladle argon blowing flat plate.

Furthermore, the outer portion of the middle section of the hard pipe is fixedly connected with an external threaded pipe, the top of the telescopic cylinder is fixedly connected with an internal threaded ring, and the external threaded pipe is in threaded connection with the internal threaded ring.

Further, the stroke of the telescopic cylinder is 800mm.

Furthermore, the purging pipe head is a multi-branch purging pipe head.

Furthermore, the purging pipe head is a three-branch purging pipe head.

: also comprises a positioning starting device.

Further, the positioning starting device is a distance sensing device.

: the side wall of the central straight pipe of the sweeping pipe head is connected with a water supply pipe through a water supply electromagnetic valve.

: and a fan-shaped water nozzle is additionally arranged at the tail end of the central straight pipe of the sweeping pipe head.

Compared with the prior art, the utility model discloses following outstanding beneficial effect has:

1. use the utility model discloses, the buggy ladle carries out the long-pending sediment of sealing washer at every turn when sweeping the position and sweeps, and the flat board blows the long-pending sediment of argon and reduces, and the flat board blows the leakproofness of argon sealing washer when having guaranteed the seat package, and the reduction gas leakage problem takes place.

2. The service life of the sealing rings is prolonged by spraying water mist for cooling, and the replacement number of the sealing rings is reduced from 15 per month to 3 per month;

3. simple structure, wide application range and convenient popularization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The invention is further described with reference to the drawings and the detailed description. In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the claimed embodiments. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the following embodiments, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

For better description, the front is towards the ladle plate (right direction in fig. 1), and the reverse is back. It is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "end," "side," and the like are used in an illustrative and non-restrictive sense, and are used in a generic and descriptive sense only and not for purposes of limitation, the referenced devices or elements must be in a particular orientation, configuration or operation, and not for purposes of limitation, as the orientation or positional relationship is illustrated in the figures.

As shown in fig. 1, the present invention includes a base 8, a telescopic cylinder 7 and a purging assembly.

The bottom of the telescopic cylinder 7 is fixed on the base 8, and the upper end of the telescopic cylinder is connected with the purging assembly. The up-down position adjustment of the blowing assembly is realized.

The purging assembly comprises a purging pipe head 3, a hard pipe 4 and a hose 6. The hose 6 is used for being communicated with a compressed air supply device, and compressed air is filled in the hard pipe 4 and the hose 6.

The lower part of the middle section of the hard tube 4 is connected with the top of the telescopic cylinder 7. In this embodiment, the outer portion of the middle section of the hard pipe 4 is fixedly connected with an external threaded pipe, the top of the telescopic cylinder 7 is fixedly connected with an internal threaded ring, and the external threaded pipe is in threaded connection with the internal threaded ring, so that fine adjustment of the position of the hard pipe 4 can be realized. The telescopic cylinder 7 has a stroke of 800mm and can completely cover the flat argon blowing sealing ring 2.

4 rear ends of hard tube pass through 5 coupling hose 6 of air feed solenoid valve, the front end is connected and is swept tube head 3, hose 6, hard tube 4, sweep tube head 3 and constitute compressed air and sweep the pipeline, compressed air pressure of admitting air is not less than 0.5Mpa. The purge cartridge 3 is preferably a multi-branched purge cartridge 3, in this embodiment a three-branched purge cartridge. The purging pipe head 3 is over against the ladle argon blowing flat plate 1.

In order to realize automatic purging, reduce the labor intensity of workers and improve the working environment, the optimized proposal also comprises a positioning starting device which is a distance sensing device 9, when the flat plate of the ladle car blows argon to the purging limit, the distance sensing device 9 senses the flat plate 1 of the ladle at the purging position, then an air supply electromagnetic valve 5 is started, the blowing pressure of the purging pipe head 3 is not less than 0.5Mpa compressed air, and the sealing ring 2 is purged.

The sealing ring operation environment is a high-temperature environment, and the sealing ring is seriously influenced and is easy to age, so that in the optimized scheme, the spraying water mist is used for cooling, and the service life of the sealing ring is prolonged. The method comprises the following specific steps: the side wall of the central straight pipe of the purging pipe head 3 is connected with a water supply pipe 10 through a water supply electromagnetic valve 11, the pressure of cooling water is not less than 0.5Mpa, and a fan-shaped water nozzle 12 is additionally arranged at the tail end of the central straight pipe of the purging pipe head 3.

The using method comprises the following steps: blowing argon by a flat plate of the ladle car to reach a purging limit, starting an air supply electromagnetic valve 5 and a water supply electromagnetic valve 11 by a distance sensing device 9, blowing compressed air with the pressure not less than 0.5Mpa by a purging connector, moving a telescopic cylinder 7 from a low-position standby position to a high-position purging position, and purging a sealing ring; the fan-shaped water nozzles 12 spray water to cool the sealing ring 2. The flat argon blowing of buggy ladle leaves to sweep spacingly, and air feed solenoid valve 5 and water supply solenoid valve 11 close, and telescopic cylinder 7 returns to the machine position of awaiting the opportune moment by sweeping the displacement, accomplishes and once sweeps.

Use the utility model discloses, the buggy ladle carries out the long-pending sediment of sealing washer once when sweeping the position at every turn and sweeps, and the flat board blows the long-pending sediment of argon and reduces, and the flat board blows argon gas leakage and reduces, and the sealing washer is changed the number and is reduced to 3/month by 15/month.

It should be noted that the present embodiment is not described in detail, and is a technique known in the art.

While certain embodiments of the present invention have been described above for purposes of illustration, it will be apparent to those skilled in the art that various obvious changes may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a ladle flat plate argon blowing sweeps device which characterized in that: comprises a base, a telescopic cylinder and a blowing assembly; the bottom of the telescopic cylinder is fixed on the base, and the upper end of the telescopic cylinder is connected with the purging assembly; the purging assembly comprises a purging pipe head, a hard pipe and a hose; the lower part of the middle section of the hard pipe is connected with the top of the telescopic cylinder; the rear end of the hard pipe is connected with a hose through an air supply electromagnetic valve, the front end of the hard pipe is connected with a purging pipe head, and the hose, the hard pipe and the purging pipe head form a compressed air purging pipeline; the purging pipe head is opposite to the ladle argon blowing flat plate.

2. The ladle plate argon blowing and purging device according to claim 1, characterized in that: hard tube middle section outside rigid coupling external screw thread pipe, telescopic cylinder top rigid coupling internal thread ring, external screw thread pipe and internal thread ring between threaded connection.

3. The ladle plate argon blowing and purging device according to claim 1, characterized in that: the stroke of the telescopic cylinder is 800mm.

4. The ladle plate argon blowing and purging device according to claim 1, characterized in that: the purging pipe head is a multi-branch purging pipe head.

5. The ladle plate argon blowing and purging device according to claim 4, characterized in that: the purging pipe head is a three-branch purging pipe head.

6. The ladle plate argon blowing and purging device according to claim 1, characterized in that: also comprises a positioning starting device.

7. The ladle plate argon blowing and purging device according to claim 6, characterized in that: the positioning starting device is a distance sensing device.

8. The ladle plate argon blowing and purging device according to claim 5, characterized in that: the side wall of the central straight pipe of the sweeping pipe head is connected with a water supply pipe through a water supply electromagnetic valve.

9. The ladle flat argon blowing and purging device according to claim 8, characterized in that: the tail end of the central straight pipe of the purging pipe head is additionally provided with a fan-shaped water nozzle.