CN211438093U

CN211438093U - Bottom blowing argon pouring device

Info

Publication number: CN211438093U
Application number: CN201921760618.2U
Authority: CN
Inventors: 肖志彬; 肖开元; 杨高亮; 彭超
Original assignee: Hunan Changgao New Material Co ltd
Current assignee: Chang Hi Tech New Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-08
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a bottom blowing argon pouring device, which comprises a sub-container, air bricks, a base, a hole blocking rod and a gas distributing disc; the container is provided with an accommodating space with an opening at the upper part, and a through hole is formed at the bottom of the accommodating space; the air brick is matched with the outline of the through hole, the air brick is embedded into the through hole, and a pouring hole is formed in the middle of the air brick; the upper surface of the base is attached to the bottom surfaces of the container and the air brick to support the container and the air brick, the middle part of the base is provided with a pouring outlet correspondingly communicated with the pouring hole, and the base is provided with an argon gas inlet hole extending to the air brick; the hole plugging rod is matched with the contour of the pouring hole and is inserted into the pouring hole to plug the pouring hole; the air distribution disc is installed in the accommodating space and is provided with a plurality of layers of air guide structures arranged at intervals. This design is come with the argon gas dispersion for the argon gas has evenly upwelled, has improved argon gas treatment effeciency, and convenient operation, only needs the stifled excellent outflow that can realize the molten steel of control plug hole.

Description

Bottom blowing argon pouring device

Technical Field

The utility model relates to a metal pouring field especially relates to a bottom blowing argon pouring device.

Background

Some gas and non-metal impurities are mixed in molten steel and need to be removed to ensure the performance of metal castings, and usually, gas supply elements (gas permeable bricks and thin metal tube gas supply bricks) are installed at the bottom of a steel ladle (container), and argon gas is blown into the molten steel through the gas permeable bricks at the bottom to form a large amount of fine argon bubbles. The inclusion can be well removed in the mode, but when argon is blown, the size of the air brick is limited, the air brick hardly covers the bottom of the steel ladle completely, and generally only occupies a small area of the bottom of the steel ladle, so that argon cannot be completely dispersed when entering molten steel, the area where the argon is dispersed is small, complete treatment can be realized only by stirring along with solution, the treatment efficiency is low, and energy waste exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem to a certain extent at least. Therefore, the utility model provides an efficient bottom blowing argon pouring device.

According to the utility model discloses support: a bottom blowing argon pouring device comprises a sub-container, air bricks, a base, a hole blocking rod and a gas distribution disc; the container is provided with an accommodating space with an opening at the upper part, and a through hole is formed at the bottom of the accommodating space; the air brick is matched with the outline of the through hole, the air brick is embedded into the through hole, and a pouring hole is formed in the middle of the air brick; the upper surface of the base is attached to the bottom surfaces of the container and the air brick to support the container and the air brick, the middle part of the base is provided with a pouring outlet correspondingly communicated with the pouring hole, and the base is provided with an argon gas inlet hole extending to the air brick; the hole plugging rod is matched with the contour of the pouring hole and is inserted into the pouring hole to plug the pouring hole; the gas distribution disc is installed in the containing space and provided with a plurality of layers of gas guide structures arranged at intervals so as to disperse the argon gas penetrating through the air bricks and entering the containing space.

According to the utility model discloses support has following technological effect at least: the air brick is embedded into the through hole, the center of the air brick is provided with a pouring hole, a hole plugging rod is plugged into the pouring hole, and after argon blowing treatment is finished, the hole plugging rod is pulled out to realize molten steel outflow pouring; through the arrangement of the argon gas inlet hole and the air brick, argon gas can be introduced from the argon gas inlet hole to the air brick, and then enters into the molten steel in the container from the air brick, so that argon blowing treatment is realized; the base supports the container, the air brick and the molten steel; the gas guide structure can disperse argon gas to realize the uniform blowing of the argon gas, so that the treatment efficiency of the molten steel argon blowing treatment is improved, and the untreated molten steel does not need to be subjected to the argon blowing treatment by flowing to a narrow argon treatment area like the traditional treatment mode; this design is come with the argon gas dispersion for the argon gas has evenly upwelled, has improved argon gas treatment effeciency, and convenient operation, only needs the stifled excellent outflow that can realize the molten steel of control plug hole.

According to the utility model discloses a some embodiments, stifled excellent upper end in hole is provided with the limiting plate that the size is greater than the plug hole, stifled excellent upwards extends and is provided with the extension rod that stretches out accommodation space.

According to some embodiments of the utility model, the gas distribution plate is provided with the guiding hole that supplies the extension rod to pass.

According to some embodiments of the utility model, the extension rod vertical extension has the connecting rod that extends the container scope, connecting rod downwardly extending is provided with the lifting rod.

According to some embodiments of the present invention, the side wall of the container is provided with an insertion block, and the insertion block is provided with a blind hole for inserting the bottom of the lifting rod; when the lifting rod is inserted into the blind hole, the hole plugging rod is pulled out of the pouring hole.

According to the utility model discloses a some embodiments, the air brick bottom is provided with round opening annular groove down, argon gas inlet port and annular groove intercommunication, the base bottom is connected with the connecting pipe with argon gas inlet port intercommunication.

According to the utility model discloses a some embodiments, accommodation space perisporium middle part is provided with the step, divide the gas dish overlap joint on the step, divide the gas dish lower extreme to be higher than air brick.

According to some embodiments of the utility model, be provided with the cross rod in the middle of the gas distribution plate, the air guide structure upper end is fixed on the cross rod.

According to some embodiments of the utility model, the air guide structure is leaks hopper-shaped, and the coaxial setting of multilayer air guide structure.

According to the utility model discloses a some embodiments, divide gas dish upper end periphery profile and accommodation space to match, divide gas dish upper end edge to be provided with the inclined plane of round downward sloping inwards.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a cross-sectional view of a bottom-blown argon casting apparatus;

FIG. 2 is a schematic structural view of a bottom-blowing argon casting apparatus;

fig. 3 is an exploded view of a bottom blowing argon casting apparatus.

FIG. 4 is a schematic view of the bottom view of the gas permeable brick and the base of the bottom blowing argon casting device shown in FIG. 1 in an exploded state;

FIG. 5 is a schematic structural view of a gas distribution plate of the bottom-blowing argon casting apparatus shown in FIG. 1;

FIG. 6 is a schematic view showing the structure of a vessel of the bottom-blowing argon casting apparatus shown in FIG. 1;

Detailed Description

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

Referring to fig. 1 to 6, the utility model relates to a bottom blowing argon pouring device, which comprises a container 100, air bricks 200, a base 300, a hole plugging rod 400 and a gas distribution plate 500.

The container 100 is provided with a containing space 101 with an open upper portion, the bottom of the containing space 101 is provided with a through hole 110, the container 100 can be a crucible or a ladle, the container 100 can be a revolving body, and the through hole 110 can be arranged at a central position and coaxial with the container 100.

The air brick 200 has certain air permeability, must also bear molten steel scouring, has certain high-temperature strength and better rapid cooling and heating resistance, and is generally made of high-alumina bricks. The air brick 200 is matched with the contour of the through hole 110, the through hole 110 is a circular hole, the air brick 200 is a cylinder matched with the through hole, the air brick 200 is embedded into the through hole 110, a pouring hole 210 is formed in the middle of the air brick 200, the thickness of the air brick 200 is the same as the height of the through hole 110, so that the upper surface and the lower surface of the air brick 200 are flush with the inner surface and the outer surface of the bottom of the container 100, and the pouring hole 210 is formed in the center of the air.

The base 300 is positioned under the container 100 to support the container 100, and the upper surface of the base 300 is attached to the bottom surfaces of the container 100 and the gas permeable bricks 200 to support the container 100 and the gas permeable bricks 200 and also to prevent the gas permeable bricks 200 from falling from the through holes. In use, the base 300 is typically supported by a support frame to facilitate the downward flow and guidance of the molten steel. Of course, in order to improve the support stability and the counterpoint precision of base 300 and container 100, the base upper surface can be provided with a plurality of reference columns that upwards extend, and container 100 bottom surface can set up a plurality of shrinkage pools that match with the reference column, realizes the stable stay through reference column and shrinkage pool cooperation, and the shrinkage pool can not pierce through the wall thickness of container 100, the hole that does not link up certainly. The middle part of the base 300 is provided with a pouring outlet 310 correspondingly communicated with the pouring hole 210, and the treated molten steel sequentially passes through the pouring hole 210 and the pouring outlet 310 to flow out. The base 300 is provided with an argon gas inlet hole 320 extending to the air brick 200; argon gas inlet 320 may introduce argon gas. In order to facilitate easy dispersion of argon, the bottom of the gas permeable brick 200 is provided with a ring of annular groove 220 with a downward opening, the argon gas inlet 320 is communicated with the annular groove 220, argon gas enters the annular groove 220 and then diffuses from the peripheral wall of the annular groove 220, and the annular groove 220 improves the diffusion area of the argon gas and is beneficial to argon gas diffusion. In order to facilitate the pipe connection of the external argon gas filling device, the bottom of the base 300 is connected with a connecting pipe 330 communicated with the argon gas inlet 320, and the connecting pipe 330 is used for being connected with the pipe connection of the argon gas filling device.

The plugging hole rod 400 is matched with the contour of the pouring hole 210 and inserted into the pouring hole 210 for plugging the pouring hole 210, and the plugging hole rod 400 is made of a high temperature resistant material, such as a ceramic or quartz lamp high temperature resistant material. After the treatment, the hole plugging rod 400 is pulled out to realize the outflow of the molten steel. In order to improve the hole blocking effect of hole blocking rod 400, hole blocking rod 400 upper end is provided with limiting plate 440 that the size is greater than pouring hole 210, and limiting plate 440 receives the pressure of gravity and molten steel and hugs closely accommodation space 101 bottom surface, realizes better hole blocking effect, in addition, for the convenience of extracting hole blocking rod, hole blocking rod 400 upwards extends and is provided with the extension rod 410 that stretches out accommodation space 101. In order to ensure the accuracy of the up-and-down plugging of the hole plugging rod 400, the hole plugging rod is conveniently and accurately plugged into the pouring hole 210. The air distribution plate 500 is provided with a guide hole 530 for the extension rod 410 to pass through, and the guide hole 530 is matched with the extension rod 410 and is in clearance fit. In order to facilitate the insertion and removal of the extension rod 410 and the hole plugging rod 400, in a further embodiment, the extension rod 410 extends vertically and horizontally to form a connection rod 420 extending out of the container 100, the connection rod 420 extends downwards to form a lifting rod 430, and the lifting rod 430 is located outside the container 100, so that the hole plugging rod 400 can be controlled from the side of the container 100, and the operation is facilitated. In some embodiments of the present application, the hole plugging rod 400 is controlled in a manual operation manner, for this reason, in order to facilitate that a person can get rid of the lifting rod 430 after the hole plugging rod 400 is lifted up, the sidewall of the container 100 is provided with the insertion block 120, and the insertion block 120 is provided with the blind hole 121 for inserting the bottom of the lifting rod 430; when the lifting rod 430 is inserted into the blind hole 121, the hole plugging rod 400 is pulled out of the pouring hole 210. Therefore, when the molten steel flows out, the lifting rod 430 is manually lifted to the position above the inserting block 120 and aligned with the blind hole 121, and then the lifting rod 430 is downwards inserted into the blind hole 121. This facilitates operation without the need for a person to hold the lifting rod 430 all the time. Of course, in other embodiments, the lifting rod 430 may be driven to lift by a telescopic driving mechanism such as a telescopic motor or an air cylinder instead of manual operation. Of course, the connecting rod 420 and the extension rod 410 may be connected in various ways, or through providing corresponding holes and fixedly connecting by rivets, or through providing clamping plates at the ends of the connecting rod 420 to clamp the extension rod 410, so as to achieve connection or other fixed connection manners. Of course, in other embodiments, the extension rod 410 may not be needed, and the extension rod 410 may be pulled by a robot arm.

The gas distribution plate 500 is installed in the accommodating space 101, and the gas distribution plate 500 is provided with a plurality of layers of gas guide structures 510 arranged at intervals so as to disperse the argon gas entering the accommodating space 101 through the gas permeable bricks 200. In order to prevent the air guide structure 510 from abutting against the air brick 200, causing the air brick 200 to be locally pressed and damaged and covering the upper surface of the air brick 200 to obstruct ventilation, the middle of the peripheral wall of the accommodating space 101 is provided with a step 130, the air distribution disc 500 is lapped on the step 130, the lowest end of the air distribution disc 500 is higher than the air brick 200, specifically, the upper end of the air distribution disc 500 is a circle of ring, the middle is hollow, the middle is provided with a cross rod 520, and the upper end of the air guide structure 510 is fixed on the cross rod 520. The gas guide structure 510 is hopper-shaped, and the coaxial interval setting of multilayer gas guide structure 510, gas guide structure 510 and container 100, the air brick 200 is coaxial, the gas guide structure 510 lower extreme has the gas cylinder 511, the vertical extension of gas cylinder 511, the gas cylinder 511 of multilayer gas guide structure 510 is coaxial and have the clearance, the diameter of all gas cylinders 511 all is less than the air brick, all be in the scope of air brick 200 promptly, the argon gas floats on permeating the air brick 200 and falls into the multiwave argon gas through a plurality of gas cylinders 511, and upwards spread along with gas guide structure 510, with this diffusion that realizes the argon gas, make the argon gas more even, argon-blowing treatment is more efficient. If the gas distribution disc 500 is not arranged, most argon gas is in a floating area, namely the coverage area of the air brick 200, and molten steel in other areas needs to flow above the air brick 200 to realize argon blowing treatment, so that the argon blowing treatment can be finished in a long time. The argon gas is dispersed, the coverage of the argon gas is wider, the treatment is more uniform and rapid, the treatment efficiency is improved, and the energy is saved.

In order to avoid molten steel residue, the outer peripheral profile of the upper end of the gas distribution plate 500 is matched with the accommodating space 101, and the edge of the upper end of the gas distribution plate 500 is provided with a circle of inclined surfaces 540 which are inclined inwards and downwards. Therefore, the molten steel can fall down along the inclined surface and can not stay in the gap between the air distribution plate 500 and the outer wall of the accommodating space 101.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A bottom blowing argon pouring device is characterized by comprising:

the container (100) is provided with an accommodating space (101) with an opening at the upper part, and the bottom of the accommodating space (101) is provided with a through hole (110);

the air brick (200) is matched with the contour of the through hole (110), the air brick (200) is embedded into the through hole (110), and the middle part of the air brick is provided with a pouring hole (210);

the upper surface of the base (300) is attached to the bottom surfaces of the container (100) and the air brick (200) to support the container (100) and the air brick (200), a pouring outlet (310) correspondingly communicated with the pouring hole (210) is formed in the middle of the base (300), and an argon gas inlet hole (320) extending to the air brick (200) is formed in the base (300);

a plugging rod (400) which is matched with the contour of the pouring hole (210) and is inserted into the pouring hole (210) for plugging the pouring hole (210);

the gas distribution plate (500), the gas distribution plate (500) is installed in the accommodating space (101), and the gas distribution plate (500) is provided with a plurality of layers of gas guide structures (510) arranged at intervals so as to disperse argon which penetrates through the air brick (200) and enters the accommodating space (101).

2. The bottom-blowing argon casting apparatus according to claim 1, characterized in that: the hole blocking rod is characterized in that a limiting plate (440) with the size larger than that of the pouring hole (210) is arranged at the upper end of the hole blocking rod (400), and an extending rod (410) extending out of the accommodating space (101) is arranged on the hole blocking rod (400) in an upward extending mode.

3. The bottom-blowing argon casting apparatus according to claim 2, characterized in that: the air distribution plate (500) is provided with a guide hole (530) for the extension rod (410) to pass through.

4. The bottom-blowing argon casting apparatus according to claim 2, characterized in that: the extension rod (410) vertically extends to form a connecting rod (420) extending out of the range of the container (100), and the connecting rod (420) extends downwards to form a lifting rod (430).

5. The bottom-blowing argon casting apparatus according to claim 4, characterized in that: the side wall of the container (100) is provided with an insertion block (120), and the insertion block (120) is provided with a blind hole (121) into which the bottom of the lifting rod (430) is inserted; when the lifting rod (430) is inserted into the blind hole (121), the hole blocking rod (400) is pulled out of the pouring hole (210).

6. The bottom-blowing argon casting apparatus according to claim 1, characterized in that: the bottom of the air brick (200) is provided with a circle of annular groove (220) with an opening facing downwards, the argon gas inlet hole (320) is communicated with the annular groove (220), and the bottom of the base (300) is connected with a connecting pipe (330) communicated with the argon gas inlet hole (320).

7. The bottom-blowing argon casting apparatus according to claim 1, characterized in that: the middle part of the peripheral wall of the accommodating space (101) is provided with a step (130), the air distribution disc (500) is lapped on the step (130), and the lowest end of the air distribution disc (500) is higher than the air brick (200).

8. The bottom-blowing argon casting apparatus according to claim 7, characterized in that: the middle of the air distribution plate (500) is provided with a cross rod (520), and the upper end of the air guide structure (510) is fixed on the cross rod (520).

9. The bottom-blowing argon casting apparatus according to claim 8, characterized in that: the air guide structure (510) is funnel-shaped, and the multiple layers of air guide structures (510) are coaxially arranged.

10. The bottom-blowing argon pouring device according to claim 1 or 8, characterized in that: the outer peripheral profile of the upper end of the air distribution disc (500) is matched with the accommodating space (101), and a circle of inwards and downwards inclined plane (540) is arranged on the edge of the upper end of the air distribution disc (500).