CN219924547U

CN219924547U - Assembled die for steel ladle lining knot tying

Info

Publication number: CN219924547U
Application number: CN202321160855.1U
Authority: CN
Inventors: 张静; 柯文武
Original assignee: Sinosteel Xian Machinery Co Ltd
Current assignee: Sinosteel Xian Machinery Co Ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-31
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses an assembled die for steel ladle lining knotting, which comprises a die main body, wherein the die main body is formed by detachably splicing a plurality of conical arc plates with different central angles, and the die main body formed after splicing is of a closed hollow inverted truncated cone structure; the splicing surfaces at two sides of one conical arc plate with the smallest central angle are obliquely arranged along the diameter direction, and the chord length A corresponding to the outer arc surface at the same position of the conical arc plate is smaller than the chord length B corresponding to the inner arc surface, so that the conical arc plate is separated from the die main body along the diameter direction of the die and towards the center of the die, a gap is provided for the rest of the die main body, and the rest of the die main body is tightened by the gap and the fastener. The utility model simplifies the processing technique by adopting a mode of integrating into a whole, and the assembled die can realize smooth demoulding after the die main body is tightened, thereby ensuring the integrity of the inner wall of the packing liner, simultaneously the die can be repeatedly used, and the production cost is reduced.

Description

Assembled die for steel ladle lining knot tying

Technical Field

The utility model belongs to the technical field of steel ladle refractory material knotting construction auxiliary tools, and particularly relates to an assembled die for steel ladle lining knotting.

Background

As is well known, a ladle is a container device widely used in the steel smelting industry, and mainly plays a role in storing and transferring molten steel. In recent years, with the rapid development of steel-making technology in China, the functions and functions of a ladle in a steel-making system are increasingly important, particularly the external refining technology is continuously improved, and the retention time of molten steel in the ladle is long, so that higher requirements are put on a plurality of factors such as the service life, the construction efficiency and the like of a ladle lining.

At present, the refractory material of the ladle lining has two modes of integral knotting and refractory brick masonry. Wherein, compared with the refractory brick masonry, the integral knotting has at least the following advantages: firstly, the refractory castable is adopted for integral casting, so that the construction efficiency is high (3-8 times higher than that of refractory brick masonry), and the labor intensity is low; secondly, the brick can be molded at will to form an integral lining body, and the service life of the brick can be prolonged by 30% -150% compared with that of a refractory brick by masonry with the same material, and the service life is up to several times; meanwhile, the air-tight sealing structure is seamless, has good air tightness and less heat dissipation loss, and can save energy. Based on the above reasons, the mode of wholly knotting refractory materials gradually becomes the mainstream in the market, the refractory materials are inevitably used as a mould in construction operation, the current mould structure for knotting steel ladle is as shown in fig. 1, the whole mould structure for knotting steel ladle is provided with a certain inclination (is in a hollow inverted cone frustum structure), a lifting lug is arranged above the mould structure, the mould is fixed at the middle position of the steel ladle when the ladle is knotted and lined, then the refractory materials are filled between the steel ladle shell and the mould, and after the refractory materials are fully filled and tamped, the mould is taken out. The refractory material is filled tightly, the surface is not damaged, pits are formed, the use safety and the service life of the subsequent ladle can be guaranteed, but the existing mould has the problem of difficult demoulding, the integrity of the ladle lining is often damaged during demoulding, and especially the part of the mould contacted with the inner wall of the ladle lining is damaged, so that the ladle lining is scrapped or the service life of the ladle is reduced.

In view of the above, the present inventors have proposed an assembly mold for knotting a ladle lining to solve the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an assembled die for knotting of ladle linings, which is characterized in that the main body structure of the die is in a closed hollow inverted truncated cone structure and is formed by assembling at least two conical arc plates with different central angles.

The utility model aims at solving the problems by the following technical scheme:

the assembled die for steel ladle lining knotting comprises a die main body, wherein the die main body is formed by detachably splicing a plurality of conical arc plates with the same height and radius at corresponding positions, the central angles of the conical arc plates are different, and the die main body formed by splicing the conical arc plates is of a closed hollow inverted cone structure;

the conical arc plate with the smallest central angle in the die body is obliquely arranged along the diameter direction, and the chord length A corresponding to the outer arc surface at any oblique position of the conical arc plate is smaller than the chord length B corresponding to the inner arc surface, so that the conical arc plate with the smallest central angle is smoothly separated from the die body along the diameter direction of the die and towards the center direction of the die.

Further, the die body is formed by splicing a first conical arc plate and a second conical arc plate, and the central angle degree of the second conical arc plate is 1% -10% of that of the first conical arc plate.

Further, each conical arc plate is provided with connecting rib plates along two sides of the height direction of the conical arc plate, each connecting rib plate is distributed in the cavity of the die main body, a plurality of through holes are formed in each connecting rib plate along the height direction of the connecting rib plate at equal intervals, and a plurality of conical arc plates are spliced to form the die main body after the connecting rib plates penetrate through the through holes through bolt assemblies.

Further, the connecting rib plates are arranged in parallel, through holes at corresponding positions on each connecting rib plate are coaxial, and after one conical arc plate with the smallest central angle is separated from the die main body, the die main body of the rest part is tightened and closed by adjusting the fasteners, so that the die is convenient to demould smoothly.

Further, the conical arc plate is made of a steel plate with the thickness of 5-8 mm.

Further, the pin-connected panel mould still includes with lifting device complex lug, the quantity of lug is two, and the fixed setting of symmetry is in the upper end of mould main part.

Further, the split mounting type die further comprises a plurality of bottom supports, the bottom supports are uniformly and fixedly arranged on the cavity wall at the bottom of the die main body, and the bottom supports are used for fixing the position of the die in the steel ladle.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model provides an assembled die for steel ladle lining knotting, which is of a closed hollow inverted truncated cone structure, and is formed by splicing at least two conical arc plates (5-8 mm steel plates) with the same height and upper and lower diameters but different central angles, wherein the splicing surfaces at the two sides of one conical arc plate with the smallest central angle are obliquely arranged, so that after the lining refractory material is knotted, the conical arc plate is separated from the die body along the diameter direction of the die and towards the center of the die, a gap is reserved on the die body, then acting force is applied to the two ends of the rest of the die body through a fastener to reduce the gap, and the rest of the die body is naturally tightened. Therefore, compared with the existing integral die, the split die can realize smooth demoulding without damaging the integrity of the packing.

2. Compared with the traditional structure, the split type assembling die for knotting of the ladle lining reduces the processing difficulty of the die main body, has low manufacturing cost, can be repeatedly used, and reduces production cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate principles of the utility model and together with the description, serve to explain the principles of the utility model.

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, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of a conventional steel ladle knotting mold;

FIG. 2 is a schematic diagram of the overall structure of the split mold of the present utility model;

FIG. 3 is a schematic top view of the assembled mold of the present utility model;

FIG. 4 is a schematic view of the cross-sectional structure of A-A in FIG. 3.

Wherein: 1 is a die main body; 2 is a bolt component; 3 is a lifting lug; 4 is a bottom bracket; 11 conical arc plates; 12 are connecting rib plates; 11-1 is a first conical arc plate; 11-2 is a second conical arc plate; 121 is a through hole; a is the chord length corresponding to the outer cambered surface; b is the chord length corresponding to the inner cambered surface.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of devices that are consistent with aspects of the utility model that are set forth in the following claims.

The present utility model will be described in further detail below with reference to the drawings and examples for better understanding of the technical solutions of the present utility model to those skilled in the art.

Referring to fig. 2 to 4, the utility model provides an assembled mold for steel ladle lining knotting, which comprises a mold main body 1, wherein the mold main body 1 is assembled in a manner compared with the existing integral structure, and is formed by detachably splicing a plurality of conical arc plates 11 with different central angles, the height of each conical arc plate 11 and the radius at the corresponding position are the same, and the mold main body 1 formed by splicing the conical arc plates 11 is in a closed hollow inverted cone structure. The two conical arc plates 11 with the smallest central angles in the die main body 1 are obliquely arranged along the diameter direction, the chord length a corresponding to the outer arc surface at the same position of the conical arc plate 11 with the smallest central angles is smaller than the chord length B corresponding to the inner arc surface, as shown in fig. 3, that is, the oblique angles of the two conical arc plates 11 with the smallest central angles are symmetrically arranged with the central cross section of the conical arc plates 11, and the junction of the oblique angle extension lines of the two splicing surfaces is far away from the center of the die, so that after the tying of the lining refractory material is completed, the connecting device is removed, and the conical arc plate 11 with the smallest central angles can be easily separated from the die main body 1 along the diameter direction of the die and towards the center of the die. Through the arrangement, the split mold provided by the utility model has at least the following advantages: firstly, the existing integral die processing is converted into a split assembly mode, so that the difficulty of part processing is reduced; secondly, after the tying of the lining refractory material is finished, the smallest conical arc plate 11 is taken out towards the center direction of the die, the gap is necessarily formed in the residual die main body 1, then acting force is applied to the two ends of the residual die main body 1 through the fastener to enable the gap to be gradually reduced, the residual die main body 1 runs in opposite directions and is gradually tightened up, and the contact with the inner wall of the lining is avoided, so that the die can be taken out smoothly, the lining is ensured to be intact, and the service life of the ladle is ensured.

The main purpose of the mold designed into the assembled structure is to form a complete vertical gap in the height direction of the mold main body 1 after the packing refractory material is knotted, so that the remaining mold main body 1 is deformed by the gap and is separated from direct contact with the packing inner wall, and excessive number of conical arc plates 11 are not needed, so that the difficulty in connecting the conical arc plates 11 with each other is avoided. Specifically, as shown in fig. 2, the mold main body 1 in the embodiment of the present utility model is formed by splicing a first conical arc plate 11-1 and a second conical arc plate 11-2, where the central angle degree of the second conical arc plate 11-2 is 1% -10% of the central angle degree of the first conical arc plate 11-1, so that a gap of 10-15 mm is formed after the second conical arc plate 11-2 is removed.

The detachable connection between the conical arc plates 11 is shown in fig. 2, 3 and 4, connecting rib plates 12 are arranged on two sides of each conical arc plate 11 along the height direction of the conical arc plates, each connecting rib plate 12 is distributed in the cavity of the die main body 1, a plurality of through holes 121 are formed in each connecting rib plate 12 along the height direction of the connecting rib plates at equal intervals, and a plurality of conical arc plates 11 are fastened and spliced to form the die main body 1 after the bolt assemblies 2 pass through the through holes 121 between any two adjacent connecting rib plates 12. The connecting rib plates 12 can be fixedly arranged on two sides of the inner cambered surface of the conical arc plate 11 in a welding mode, preferably, the conical arc plate 11 is made of a steel plate with the thickness of 5-8 mm, and the conical arc plate 11 and the connecting rib plates 12 are of an integrated structure so as to ensure the strength of the die main body.

Further, each connecting rib plate 12 is arranged in parallel, through holes 121 at corresponding positions on each connecting rib plate 12 are coaxial, and the connecting rib plates are used for enabling the rest of the die main bodies 1 to be tightened and closed by adjusting by using fasteners after one conical arc plate 11 with the smallest central angle is separated from the die main bodies 1, so that the die is convenient to demould smoothly. Specifically, taking the mold main body 1 formed by assembling the first conical arc plate 11-1 and the second conical arc plate 11-2 as an example in this embodiment as an illustration, the mold main body includes four connecting rib plates 12 in total, before use, the first conical arc plate 11-1 and the second conical arc plate 11-2 are fixedly connected through the bolt assembly 2 to form a closed hollow inverted conical die, finally after tying the lining refractory material, the bolt assembly 2 is completely removed, the second conical arc plate 11-2 is removed along the diameter direction of the die and towards the center of the die, and then a force is applied to the connecting rib plates 12 on two sides of the first conical arc plate 11-1 through using a longer fastener (bolt assembly), so that the connecting rib plates are gradually tightened and closed to be separated from contact with the lining, and the demolding is smoothly completed.

The split mounting type die further comprises two lifting lugs 3 matched with the lifting equipment, wherein the number of the lifting lugs 3 is two, and the lifting lugs are symmetrically and fixedly arranged at the upper end of the die main body 1; in addition, the ladle mold further comprises four bottom brackets 4, wherein the four bottom brackets 4 are uniformly and fixedly arranged on the cavity wall at the bottom of the mold main body 1, and the four bottom brackets 4 are mainly used for fixing the position of the mold in the ladle.

The use flow of the split mold is as follows:

firstly, according to the actual condition of knotting construction of a ladle and refractory materials, each component part of the die is customized in advance, and mainly comprises a conical arc plate 11 with a connecting rib plate 12, a lifting lug 3 and other structures, and then the hollow inverted cone die is formed after the structures are assembled.

Secondly, the assembled die is moved into the ladle cavity through the hoisting equipment, the position of the die (by means of a positioning block) is adjusted to be positioned in the middle of the ladle, and the die is locked through the collet 4.

Finally, refractory materials are poured into the cavity between the die and the steel ladle, after the tying of the refractory materials for lining is completed, all the bolt assemblies 2 are removed, and the second conical arc plate 11-2 is removed along the diameter direction of the die and towards the center of the die; at this time, the residual die body 1 only has the first conical arc plate 11-1, the connecting rib plates 12 on two sides of the first conical arc plate 11-1 are applied with acting force by using the fastener, and two ends of the residual die body 1 move in opposite directions, namely are gradually tightened and close and are separated from contact with the inner wall of the packing, so that the demolding can be smoothly realized, and meanwhile, the intact packing wall is ensured.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

It will be understood that the utility model is not limited to what has been described above and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. The assembled die for steel ladle lining knotting is characterized by comprising a die main body (1), wherein the die main body (1) is formed by detachably splicing a plurality of conical arc plates (11) with the same radius at the corresponding positions, the central angles of the conical arc plates (11) are different, and the die main body (1) formed by splicing the conical arc plates (11) is of a closed hollow inverted cone structure;

the conical arc plate (11) with the smallest central angle in the die main body (1) is obliquely arranged along the diameter direction, the chord length A corresponding to the outer arc surface at any oblique position of the conical arc plate (11) is smaller than the chord length B corresponding to the inner arc surface, and the conical arc plate (11) with the smallest central angle is smoothly separated from the die main body (1) along the diameter direction of the die and towards the center direction of the die.

2. The spliced mold for steel ladle lining knotting according to claim 1, wherein the mold main body (1) is formed by splicing a first conical arc plate (11-1) and a second conical arc plate (11-2), and the central angle degree of the second conical arc plate (11-2) is 1% -10% of the central angle degree of the first conical arc plate (11-1).

3. The assembled die for steel ladle lining knotting according to claim 1 or 2, wherein each conical arc plate (11) is provided with connecting rib plates (12) along two sides of the height direction of the conical arc plate, each connecting rib plate (12) is distributed in the cavity of the die main body (1), a plurality of through holes (121) are formed in each connecting rib plate (12) at equal intervals along the height direction of the connecting rib plates, and a plurality of conical arc plates (11) are spliced to form the die main body (1) after the connecting rib plates (12) penetrate through the through holes (121) through bolt assemblies (2).

4. A steel ladle lining tie pin-connected panel mould according to claim 3, characterized in that, a plurality of the connection gusset (12) are parallel arrangement, and the through holes (121) at corresponding positions on each connection gusset (12) are coaxial, for tightening and drawing together the rest of the mould main body (1) by adjusting the fastener after one conical arc plate (11) with the smallest central angle is separated from the mould main body (1), thereby facilitating smooth demoulding.

5. The assembled die for steel ladle lining knot tying according to claim 3, wherein the conical arc plate (11) and the connecting rib plate (12) are of an integrated structure.

6. The assembled die for steel ladle lining knot tying according to claim 1, wherein the conical arc plate (11) is made of steel plates with the thickness of 5-8 mm.

7. The assembled die for steel ladle lining knot tying according to claim 1, further comprising lifting lugs (3) matched with lifting equipment, wherein the number of the lifting lugs (3) is two, and the lifting lugs are symmetrically and fixedly arranged at the upper end of the die main body (1).

8. The spliced mold for steel ladle lining knot tying according to claim 1, further comprising a plurality of buttresses (4), wherein the plurality of buttresses (4) are uniformly and fixedly arranged on the bottom cavity wall of the mold main body (1), and the plurality of buttresses (4) are used for fixing the position of the mold in the steel ladle.