CN218903602U

CN218903602U - Pouring ladle assembly

Info

Publication number: CN218903602U
Application number: CN202223265222.5U
Authority: CN
Inventors: 王贯中; 李鹏; 金强; 张国芳; 王盼合; 佟进; 郑海鑫; 赵海员; 鞠庆红; 李悦; 陈旭; 王永刚; 马鹏坤; 孙万胜
Original assignee: Hebei Jinxi Iron And Steel Group Heavy Industry Technology Co ltd
Current assignee: Hebei Jinxi Iron And Steel Group Heavy Industry Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-25
Anticipated expiration: 2032-12-06

Abstract

The utility model provides a pouring ladle assembly, which comprises a ladle main body, a brick sleeve, air bricks, a bearing plate and an air inlet pipe, wherein the brick sleeve is arranged on the ladle main body; the bottom of the ladle main body is provided with a mounting port; the brick sleeve is in a round table shape and is inserted into the mounting opening, the outer diameter of the brick sleeve is gradually reduced along the air inlet direction, and an accommodating channel which is vertically penetrated is formed in the brick sleeve; the air brick is arranged in the accommodating channel; the bearing plate is detachably arranged on the lower surface of the brick sleeve, and the center of the bearing plate is provided with an air inlet; the air inlet pipe penetrates through the air inlet and is connected with the air brick. According to the pouring ladle assembly provided by the utility model, when the air brick needs to be replaced, the bearing plate is taken down, the brick sleeve is pushed and pressed from the inside of the ladle main body, the brick sleeve is in a circular truncated cone structure, and can easily fall off from the ladle main body, and the brick sleeve falls off to drive the air brick to fall off, so that the replacement efficiency is improved; the air brick can be replaced under the condition of not damaging the ladle main body, and the replacement cost of the air brick is reduced.

Description

Pouring ladle assembly

Technical Field

The utility model belongs to the technical field of ferrous metallurgy, and particularly relates to a pouring ladle assembly.

Background

The iron and steel industry is used as a foundation stone of national economy, not only provides important raw material guarantee for national infrastructure, but also strongly supports the development of related industries. Aiming at the cleaning of steel materials, micro argon bubbles which can catch nonmetallic inclusions are blown into a ladle main body or a tundish, the inclusions are caught to form bubble-inclusion aggregates and then float to a slag layer on the surface of molten steel under the action of buoyancy, so that nonmetallic inclusions in the molten steel enter the slag layer to be removed; and the small argon bubbles in the molten steel can play the role of a small vacuum chamber, and dissolved gas (H, N, O) in the molten steel is continuously introduced into the small vacuum chamber and is discharged in a floating manner, so that the gas content in the molten steel is reduced, and the dissolved gas and the reinforced decarburization can be removed in the refining process, and nonmetallic inclusions can be effectively removed, so that the refined steel is clean and purified, and the quality of steel is improved. In the external refining process of the high-quality steel smelting technology, the air brick is a vital functional element, and argon is blown into the pouring ladle through the air brick.

But in the use of the air brick, the air holes are easy to be damaged, so that the air brick is not smooth in air permeability, even the air brick is damaged, the air brick needs to be replaced, under the conventional condition, the air brick and the pouring ladle main body are cast integrally, when the air brick is replaced, the air brick is required to be cut off integrally in the area where the air brick is located, so that the air brick is replaced, the pouring ladle is damaged, the air brick is replaced frequently, the time is wasted, the additional cost for repairing the pouring ladle main body is increased, and the quality of the pouring ladle main body is also influenced.

Disclosure of Invention

The embodiment of the utility model provides a pouring ladle assembly, which aims to solve the problems that in the prior art, a pouring ladle main body needs to be damaged when an air brick is replaced, the time and the labor are wasted when the air brick is replaced, and the replacement cost is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

there is provided a pouring ladle assembly comprising:

the ladle body is provided with a mounting port at the bottom;

the brick sleeve is in a round table shape and is inserted into the mounting opening, the outer diameter of the brick sleeve is gradually reduced along the air inlet direction, and an accommodating channel which is vertically penetrated is formed in the brick sleeve;

the air brick is arranged in the accommodating channel;

the bearing plate is detachably arranged on the lower surface of the brick sleeve, and the center of the bearing plate is provided with an air inlet; and

the air inlet pipe penetrates through the air inlet and is connected with the air brick.

In one possible implementation, a fire-resistant sealing coating is arranged between the brick sleeve and the mounting opening and between the brick sleeve and the air brick.

In one possible implementation manner, two ends of the bearing plate are provided with matching holes;

the lower surface of ladle main part still is equipped with fastening assembly, fastening assembly pass the mating holes and with the lower surface cooperation of ladle main part is in order to centre gripping fixed the bearing plate.

In one possible implementation, the fastening assembly includes:

the pin rod is inserted into the lower surface of the ladle main body, and a wedge hole is formed in the pin rod along the radial direction of the pin rod; and

and the wedge-shaped block is inserted into the wedge hole.

In one possible implementation, the pin and the ladle bottom of the ladle body are integrally cast.

In one possible implementation manner, the accommodating channel comprises an upper channel and a lower channel which are sequentially connected from top to bottom, and the inner diameter of the upper channel is gradually reduced along the air inlet direction.

In one possible implementation, a cavity is formed between the bottom end of the air brick and the brick sleeve, and the cavity is communicated with the air inlet pipe.

In one possible implementation manner, ventilation holes penetrating up and down are formed in the air brick, and a plurality of ventilation holes are distributed in an annular array.

In one possible implementation manner, the ventilation holes are concentrically provided with 3-5 circles, and the ventilation holes of two adjacent circles are distributed in a staggered manner.

In one possible implementation manner, an annular cushion block is arranged in the cavity, and the outer peripheral surface of the annular cushion block is attached to the inner surface of the brick sleeve.

Compared with the prior art, the pouring ladle assembly provided by the utility model has the advantages that the brick sleeve is arranged at the position of the original installation of the air brick on the ladle body, the air brick is arranged in the brick sleeve, the brick sleeve and the air brick are kept relatively stable through the pressure bearing plate, when the air brick needs to be replaced, the pressure bearing plate is taken down, the brick sleeve is pushed and pressed from the inside of the ladle body, the brick sleeve is in a circular truncated cone structure, and can easily fall off from the ladle body, the brick sleeve falls off to drive the air brick to fall off, the replacement is convenient, and the replacement efficiency is improved; the air brick can be replaced under the condition of not damaging the ladle main body, thereby avoiding damaging the ladle main body and reducing the replacement cost of the air brick.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of a pouring ladle assembly according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of a supporting plate according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating the assembly of a pin and a ladle body employed in accordance with a first embodiment of the present utility model;

FIG. 4 is a schematic view of a brick cover according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a pin according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of an assembly of pins and wedges employed in accordance with a first embodiment of the present utility model;

FIG. 7 is a schematic view of a fastening assembly according to a second embodiment of the present utility model;

FIG. 8 is a cross-sectional view of an air brick used in accordance with a third embodiment of the present utility model;

FIG. 9 is a top view of an air brick used in accordance with a third embodiment of the present utility model;

fig. 10 is a schematic view showing the assembly of an air brick and a brick cover according to a fourth embodiment of the present utility model.

Reference numerals illustrate:

1. brick sleeves; 11. an accommodation channel; 111. an upper channel; 112. a lower channel;

2. an air brick; 21. ventilation holes; 22. a cavity;

3. a pressure bearing plate; 31. an air inlet; 32. a mating hole;

4. an air inlet pipe;

5. a fastening assembly; 51. a pin; 511. wedge holes; 52. wedge blocks; 53. a support; 531. a groove;

6. an annular cushion block;

7. a ladle body; 71. and (5) an installation port.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. Furthermore, the meaning of "a plurality of", "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 10 together, a description will now be given of a ladle assembly according to the present utility model. The pouring ladle assembly comprises a ladle main body 7, a brick sleeve 1, air bricks 2, a bearing plate 3 and an air inlet pipe 4. The bottom of the ladle body 7 is provided with a mounting opening 71; the brick sleeve 1 is in a shape of a circular table and is inserted into the mounting opening 71, the outer diameter of the brick sleeve 1 is gradually reduced along the air inlet direction, and an accommodating channel 11 which is vertically communicated is formed in the brick sleeve 1; the air brick 2 is arranged in the accommodating channel 11; the bearing plate 3 is detachably arranged on the lower surface of the brick sleeve 1, and an air inlet 31 is formed in the center of the bearing plate 3; the air inlet pipe 4 passes through the air inlet 31 and is connected with the air brick 2.

The material of the air inlet pipe 4 and the receiving plate 3 is high-temperature resistant alloy steel.

The brick sleeve 1 is made of corundum mullite castable.

The inlet direction is a flow direction in which argon gas enters the interior of the ladle body 7 through the inlet pipe 4.

In specific implementation, the plate surface of the bearing plate 3 is attached to the lower surface of the ladle body 7.

Compared with the prior art, the pouring ladle assembly provided by the embodiment has the advantages that the brick sleeve 1 is arranged at the position of the ladle main body 7 where the air brick 2 is arranged, the air brick 2 is arranged in the brick sleeve 1, the brick sleeve 1 and the air brick 2 are kept relatively stable through the bearing plate 3, when the air brick 2 needs to be replaced, the bearing plate 3 is taken down, the brick sleeve 1 is pushed and pressed from the inside of the ladle main body 7, the brick sleeve 1 is in a round table structure, and can easily fall off from the ladle main body 7, the brick sleeve 1 falls off to drive the air brick 2 to fall off, the replacement is convenient, and the replacement efficiency is improved; the air brick 2 can be replaced under the condition of not damaging the ladle main body 7, so that the damage to the ladle main body 7 is avoided, and the replacement cost of the air brick 2 is reduced.

In some embodiments, a fire-resistant sealing coating is provided between the brick cover 1 and the mounting opening 71, and between the brick cover 1 and the air brick 2. The fireproof sealing coating can fill gaps between the brick sleeve 1 and the bottom mounting opening 71 of the ladle main body 7 and gaps between the brick sleeve 1 and the air brick 2, so that molten steel in the ladle main body 7 is prevented from flowing out from the gaps between the brick sleeve 1 and the bottom mounting opening 71 of the ladle main body 7 and/or the gaps between the brick sleeve 1 and the air brick 2, and normal use of the ladle main body 7 is ensured.

When the air brick 2 needs to be replaced, the brick sleeve 1 is pushed outwards from the inside of the ladle body 7, the refractory sealing coating between the brick sleeve 1 and the bottom mounting opening 71 of the ladle body 7 breaks, and the brick sleeve 1 falls off from the ladle body 7.

Optionally, the raw material of the refractory sealing coating is refractory cement, which is formed by mixing bauxite and lime according to a certain proportion.

In some embodiments, referring to fig. 2, both ends of the bearing plate 3 are provided with mating holes 32; the lower surface of the ladle body 7 is also provided with a fastening component 5, and the fastening component 5 passes through the matching hole 32 and is matched with the lower surface of the ladle body 7 to clamp and fix the bearing plate 3. In specific implementation, the bearing plate 3 and the ladle body 7 are detachably connected, and the bearing plate 3 seals the mounting opening 71 of the ladle body 7 after the brick sleeve 1 and the air brick 2 are mounted. When the air brick 2 is replaced, the bearing plate 3 needs to be moved out of the mounting opening 71, and after the fastening assembly 5 penetrates through the matching hole 32, the mounting and dismounting of the bearing plate 3 are realized by adjusting the fastening assembly 5. The arrangement of the matching holes 32 facilitates the fastening assembly 5 to fix the bearing plate 3.

In some embodiments, referring to fig. 1, 5 and 6, the fastening assembly 5 includes a pin 51 and a wedge 52. The pin 51 is inserted into the lower surface of the ladle bottom of the ladle body 7, and the pin 51 is provided with a wedge hole 511 along the radial direction; the wedge 52 is inserted into the wedge hole 511.

It should be noted that, the extending end of the wedge 52 is an inclined plane, and the space within the wedge hole 511 decreases as the extending end of the wedge 52 penetrates.

In specific implementation, the wedge block 52 passes through the wedge hole 511, the support plate 3 is supported above the wedge block 52, the distance between the support plate 3 and the lower surface of the ladle body 7 decreases along with the increase of the distance between the wedge block 52 and the wedge hole 511, and the distance between the support plate 3 and the lower surface of the ladle body 7 gradually decreases until the plate surface of the support plate 3 is attached to the lower surface of the ladle body 7 in the process that the wedge block 52 passes through the wedge hole 511. The distance between the bearing plate 3 and the lower surface of the ladle body 7 is adjusted by controlling the length of the wedge block 52 penetrating through the wedge hole 511, so that the matching relationship is simple and the effect is obvious.

In some embodiments, referring to fig. 3, the pin 51 is integrally cast with the ladle bottom of the ladle body 7. The pin 51 and the ladle main body 7 are integrally formed, the relative position of the pin 51 is unchanged all the time, and the distance between the wedge hole 511 and the ladle main body 7 is not changed due to the movement of the pin 51, so that the plate surface of the bearing plate 3 cannot be attached to the lower surface of the ladle main body 7.

As another specific embodiment of the fastening assembly 5, referring to fig. 7, the fastening assembly 5 includes two supports 73 integrally formed with the bottom end of the ladle body 7, the two supports 73 are oppositely disposed, and the opposite sides form grooves 731, the support plate 3 is a rectangular plate, and two opposite sides of the support plate 3 are respectively slidably matched with the two grooves 731, so as to implement the fitting between the plate surface of the support plate 3 and the lower surface of the ladle body 7.

In some embodiments, referring to fig. 4, the accommodating channel 11 includes an upper channel 111 and a lower channel 112 sequentially connected from top to bottom, and an inner diameter of the upper channel 111 gradually decreases along the air intake direction. The internal shape of accommodation passageway 11 and the shape looks adaptation of air brick 2, when need take down air brick 2 from brick cover 1, bulldozes air brick 2 from the side that upper channel 111 is located, and the fire-resistant sealing coating between brick cover 1 and air brick 2 breaks, and air brick 2 drops from brick cover 1, and it is convenient to change, and the dismantlement is efficient. The arrangement of the upper channel 111 and the lower channel 112 meets the structural strength requirements of the brick cover 1.

The inner diameter of the lower channel 112 is gradually reduced or maintained in the air intake direction, so long as the air brick 2 is not affected to fall off from the brick cover 1.

As another specific embodiment of the accommodating channel 11, the inner diameter of the accommodating channel 11 gradually decreases along the air inlet direction, when the air brick 2 needs to be removed from the brick sleeve 1, the air brick 2 is pushed from the side where the upper channel 111 is located, the refractory sealing coating between the brick sleeve 1 and the air brick 2 breaks, and the air brick 2 falls off from the brick sleeve 1.

As an embodiment of the air brick 2, referring to fig. 10, a cavity 22 is formed between the bottom end of the air brick 2 and the brick cover 1, and the cavity 22 is communicated with the air inlet pipe 4. Argon gas gets into cavity 22 from intake pipe 4, and the argon gas shunts in cavity 22, and the gas pressure that each part of bottom received of air brick 2 is unanimous, and then the argon gas bubble initial velocity that blows out from air brick 2 is the same, prevents that each position atmospheric pressure in air brick 2 from being different from leading to air brick 2 to damage, reduces the change number of times, saves the cost.

In some embodiments, referring to fig. 8 and 9, ventilation holes 21 penetrating up and down are provided in the ventilation brick 2, and a plurality of ventilation holes 21 are arranged in an annular array. Argon in the cavity 22 enters the ladle body 7 through the air holes 21, so that the argon is conveyed. The plurality of ventilation holes 21 are distributed in an annular array, so that argon bubbles entering the ladle main body 7 are uniformly diffused, and the impurity removing effect of molten steel is improved.

In some embodiments, referring to fig. 9, the ventilation holes 21 are concentrically provided with 3-5 circles, and the ventilation holes 21 of two adjacent circles are staggered. The number of turns of the circular ring can influence the stirring energy and flow field change of the stirring energy in the ladle main body 7, and enough turns can ensure that bubbles can be well dispersed in the ladle main body 7, meanwhile, under the same flow, the more the number of turns, the more holes are, the more the collision and combination of inclusions and argon bubbles in molten steel are facilitated, and the impurity removal of the molten steel is facilitated.

In some embodiments, the axis of the ventilation holes 21 is disposed at an angle to the axis of the ventilation bricks 2. The air holes 21 are obliquely arranged, so that the bubble group in the molten steel can spirally rise, thereby driving the molten steel around the bubbles to move to generate rotational flow, and the time for alloying and mixing the molten steel can be reduced.

In some embodiments, referring to fig. 9, the aperture of the ventilation holes 21 increases sequentially from the inner ring to the outer ring. The specific surface area of the bubbles blown out by the air holes 21 is different due to the different pore sizes of the air holes, so that the bubbles are less likely to coagulate and the average diameter of the bubbles is increased; the air holes 21 with different apertures generate bubbles with different sizes, and the bubbles with different sizes have different specific surface areas and different stirring energy, so that the capability of removing small-size inclusions can be enhanced; the pore diameter of the modified pore diameter not only can ensure stirring energy, but also can increase the removing capability of impurities.

In some embodiments, referring to fig. 10, an annular spacer 6 is disposed in the cavity 22, and the outer peripheral surface of the annular spacer 6 is fitted to the inner surface of the brick cover 1. The annular cushion block 6 is arranged between the air brick 2 and the supporting plate 3, and the cavity 22 is formed by matching the plate surface of the supporting plate 3, the annular cushion block 6 and the lower surface of the air brick 2 during specific implementation, the air inlet pipe 4 is communicated with the cavity 22, the cavity 22 is communicated with the air holes 21, argon sequentially passes through the air inlet pipe 4, the cavity 22 and the air holes 21 to enter the steel ladle main body 7, and leakage cannot occur from the area where the cavity 22 is located.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A pouring ladle assembly comprising:

the ladle body is provided with a mounting port at the bottom;

the air brick is arranged in the accommodating channel;

2. The casting ladle assembly of claim 1 wherein a refractory seal coating is provided between said brick sleeve and said mounting port and between said brick sleeve and said air brick.

3. The pouring ladle assembly of claim 1, wherein the two ends of the bearing plate are provided with matching holes;

4. The ladle assembly as recited in claim 3 wherein said fastening assembly comprises:

and the wedge-shaped block is inserted into the wedge hole.

5. The pouring ladle assembly of claim 4 wherein said pin and the bottom of said ladle body are integrally cast.

6. The ladle assembly of claim 1 wherein said receiving channel comprises an upper channel and a lower channel joined in sequence from top to bottom, said upper channel having an inner diameter that decreases progressively in the direction of the inlet air.

7. The ladle assembly of claim 1 wherein a cavity is formed between the bottom end of the air brick and the brick sleeve, the cavity being in communication with the air inlet conduit.

8. The pouring ladle assembly of claim 7, wherein the air brick is internally provided with air holes which are vertically penetrated, and a plurality of the air holes are distributed in an annular array.

9. The pouring ladle assembly of claim 8, wherein the ventilation holes are concentrically provided with 3-5 circles, and the ventilation holes of two adjacent circles are distributed in a staggered manner.

10. The ladle assembly as recited in claim 7 wherein an annular spacer is disposed within said cavity, the outer peripheral surface of said annular spacer being in engagement with the inner surface of said brick cup.