CN212042639U - Magnesia-carbon brick with waste graphite electrode used at slag line part of LF steel ladle lining - Google Patents

Abstract

The utility model discloses an abandonment graphite electrode is used for magnesia carbon brick at LF ladle inside lining slag line position, including the fan-shaped brick body, the heat-proof tank has been seted up along the side of radial direction to the fan-shaped brick body, the heat-proof tank runs through left surface to the right flank of the fan-shaped brick body, the inner wall of heat-proof tank has reduced magnesia carbon brick's coefficient of heat conductivity along its circumference direction fixedly connected with bearing structure, through seting up the heat-proof tank, has reduced thermal loss, makes magnesia carbon brick possess thermal-insulated effect, has increased bearing structure simultaneously again, has strengthened magnesia carbon brick's intensity, has prolonged magnesia carbon brick's life, possesses thermal-insulated effect when making magnesia carbon brick guarantee brick body intensity.

Description

Magnesia-carbon brick with waste graphite electrode used at slag line part of LF steel ladle lining

The technical field is as follows:

the utility model relates to a magnesia carbon brick technical field especially relates to abandonment graphite electrode is used for the magnesia carbon brick at LF ladle inside lining slag line position.

Background art:

the ladle slag line brick is an important device in the ladle metallurgy industry, plays a role in storing and transferring molten steel, and simultaneously has double tasks of refining outside a furnace, the service life of a ladle is long, the consumption of refractory materials is related, and the normal production of steel making is directly influenced, most of the existing ladle slag line bricks are cuboid or cube square bricks, when a wall is built, constructors need to build an arc-shaped wall surface to be difficult, meanwhile, the heat conductivity coefficient of the existing ladle slag line brick is large, the heat loss is large in the using process, and the improvement of the heat insulation effect is a core problem which needs to be solved urgently for many years in the field;

the existing ladle slag line brick can adopt the open pores to increase the heat insulation effect of the brick, but simultaneously, the strength of the brick is lower, the brick is easy to crack, the whole brick body is damaged, and the furnace body cannot normally work, so that the ladle slag line brick which can realize heat insulation and can ensure the strength needs to be provided.

The utility model has the following contents:

the utility model aims to solve the existing problems and provide a magnesia carbon brick with a waste graphite electrode used at the slag line part of an LF ladle, which reduces the heat conductivity coefficient of the magnesia carbon brick and the heat loss by arranging a heat insulation groove, so that the magnesia carbon brick has the heat insulation effect, and simultaneously, a supporting structure is added, thereby enhancing the strength of the magnesia carbon brick, prolonging the service life of the magnesia carbon brick, ensuring the strength of the brick body and ensuring the heat insulation effect of the brick body,

the magnesium carbon brick with the waste graphite electrode used for the LF ladle lining slag line position comprises a fan-shaped brick body, wherein a heat insulation groove is formed in the side face of the fan-shaped brick body along the radial direction, the heat insulation groove penetrates through the left side face to the right side face of the fan-shaped brick body, and a supporting structure is fixedly connected to the inner wall of the heat insulation groove along the circumferential direction of the inner wall.

Preferably, the supporting structure comprises a supporting frame, the supporting frame is fixedly connected to the inner wall of the heat insulation groove, the overall dimension of the supporting frame is matched with that of the heat insulation groove, and the outer surface of the supporting frame is wrapped with a heat insulation layer.

Preferably, one side of the sector brick body in the radial direction is provided with a groove, the other side of the sector brick body is provided with a convex groove matched with the groove, the grooves are two square grooves, and the square grooves are positioned on two sides of the heat insulation groove.

Preferably, the lower surface of the fan-shaped brick body is provided with a positioning hole, the positioning hole penetrates through the lower surface of the fan-shaped brick body, and the upper surface of the fan-shaped brick body is provided with a convex block matched with the positioning hole.

Preferably, the external dimension of the heat insulation groove is 1/3-1/4 of the external dimension of the fan-shaped brick body.

Preferably, the brick height A of the fan-shaped brick body is 12-16 cm.

Preferably, the heat insulation layer is made of polystyrene material, and the support frame is made of steel material.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a heat-proof slot has been seted up along the side of radial direction to the magnesia carbon brick, the heat-proof slot runs through left surface to the right flank of the fan-shaped brick body, the inner wall of heat-proof slot is along its circumference direction fixedly connected with bearing structure, through having seted up the heat-proof slot, the medium in the middle of the heat-proof slot is the air, compare in the heat conductivility of low carbon magnesia carbon brick, the coefficient of heat conductivity of air is lower, thereby the coefficient of heat conductivity of magnesia carbon brick has been reduced, thermal loss has been reduced, the thermal-insulated effect of magnesia carbon brick has been improved, thereby the heat loss of ladle has been reduced, improve thermal insulation performance, reduce thermal loss, it has the significance to stabilize molten steel temperature, increase simultaneously again there is bearing structure, the intensity of magnesia carbon brick has been strengthened, the life of magnesia carbon brick has been prolonged, make the brick body possess thermal-insulated effect when making magnesia.

2. The utility model discloses a magnesia carbon brick is seted up flutedly along one side of its radial direction, its opposite side seted up with the tongue that the recess mutually supported, the recess is two square grooves, the square groove is located the both sides of heat-proof slot, when magnesia carbon brick and magnesia carbon brick carry out interconnect, through the setting of square groove, make the magnesia carbon brick be difficult for removing after connecting, form the interlocking mode between brick and the brick, increased the stable building and the location between brick and the brick, improve the wholeness and the shock resistance of degree of stability, bonding.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic bottom view of the present application;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic cross-sectional view of the support structure of the present invention;

fig. 5 is a top view of the support structure of the present invention;

FIG. 6 is a general schematic diagram of the waste heap of the present invention;

FIG. 7 is a schematic view of a mold for manufacturing the sector bricks of the present invention;

in the drawings: 1. a sector brick body; 11. an inner arc surface; 12. an outer arc surface; 2. a heat insulation groove; 3. a support structure; 31. a support frame; 32. a thermal insulation material; 33. a fixing hole; 4. a groove; 41. a square groove; 5. a convex groove; 6. a bump; 7. positioning holes; 8. a lower die; 81. positioning a rod; 9. an upper die;

the specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1-5, the waste graphite electrode is used for making the magnesia carbon brick at the slag line part of the ladle, and the waste is prevented and the resources are saved by adopting the waste graphite electrode to make the magnesia carbon brick, and the waste is prevented and the resources are saved by arranging the fan-shaped brick body 1, so that a constructor can conveniently lay bricks into an arc-shaped wall surface and is convenient to operate, the inner arc surface 11 of the fan-shaped brick body 1 is smaller than the outer arc surface 12, the heat insulation groove 2 is arranged on the side surface of the fan-shaped brick body 1 along the radial direction, the heat insulation groove 2 runs through the left side surface to the right side surface of the fan-shaped brick body 1, and the inner wall of the heat insulation groove 2 is fixedly connected with a supporting.

Specifically, bearing structure 3 is including carriage 31, carriage 31 fixed connection be in on the inner wall of heat sink 2, carriage 31's overall dimension with heat sink 2's overall dimension is mutually supported, carriage 31's surface parcel has insulating layer 32, insulating layer 32 is the polystyrene material, carriage 31 is the steel material, when can guarantee that bearing structure 3 adopts the steel material to guarantee support function, has overcome the heat absorptivity of steel material, has guaranteed the heat-proof quality of brick.

Specifically, the fan-shaped brick body 1 has seted up recess 4 along one side of its radial direction, its opposite side seted up with the tongue 5 that recess 4 mutually supported, the recess is two square grooves 41, square groove 41 is located the both sides of heat-insulating groove 2, when magnesia carbon brick and magnesia carbon brick carry out interconnect, through the setting of square groove 41, make difficult removal after magnesia carbon brick connects, increased the stable building and location between brick and the brick, facilitate for the use of brick.

Specifically, the lower surface of the fan-shaped brick body 1 is provided with a positioning hole 7, the positioning hole 7 penetrates through the lower surface of the fan-shaped brick body 1, the upper surface of the fan-shaped brick body 1 is provided with a convex block 6 matched with the positioning hole, the stability of vertical connection of the fan-shaped brick body 1 can be ensured, the fan-shaped brick body 1 cannot easily move, and positioning and stacking are facilitated.

Specifically, the supporting structure 3 is provided with the fixing hole 33 at the same position as the positioning hole 7, so that when the brick body is manufactured and the upper and lower molds are pressed, the supporting structure 3 can be fixed on the positioning rod of the lower mold of the brick body, the supporting structure 3 cannot move during positioning, and the pressing is facilitated.

Specifically, the overall dimension of the heat insulation groove 2 is 1/3-1/4 of the overall dimension of the fan-shaped brick body 1, so that the situation that too small heat insulation effect is not obvious and too large heat insulation effect is caused to damage the structure of the brick is prevented.

Specifically, the brick height A of the fan-shaped brick body 1 is 12-16 cm, so that the height of the brick is ensured, and the strength of the brick is ensured.

The working principle is as follows: the preparation of brick, when the preparation, mould about adopting, place on bed die 8 with locating hole 7 complex locating lever 81, place bearing structure 3 on the top of locating lever 81 through fixed orifices 33, later put into the raw materials of brick on bed die 8, carry out the pressfitting through last mould 6, form fan-shaped brick, during the installation, carry out the location of controlling through square groove 41 and tongue 5, carry out location from top to bottom through lug 6 and locating hole 7, carry out preliminary location between brick and the brick, make things convenient for piling up and the location of brick.

The above description is only a preferred embodiment of the present invention, and all other embodiments obtained by those skilled in the art without any creative effort shall fall within the protection scope of the present invention.

Claims (7)

1. The magnesium carbon brick is characterized by comprising a fan-shaped brick body (1), wherein a heat insulation groove (2) is formed in the side face of the fan-shaped brick body (1) along the radial direction, the heat insulation groove (2) penetrates through the left side face to the right side face of the fan-shaped brick body (1), and a supporting structure (3) is fixedly connected to the inner wall of the heat insulation groove (2) along the circumferential direction of the inner wall.

2. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode according to claim 1, is characterized in that: the supporting structure (3) comprises a supporting frame (31), the supporting frame (31) is fixedly connected to the inner wall of the heat insulation groove (2), the overall dimension of the supporting frame (31) is matched with the overall dimension of the heat insulation groove (2), and a heat insulation layer (32) wraps the outer surface of the supporting frame (31).

3. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode according to claim 1, is characterized in that: one side of the fan-shaped brick body (1) in the radial direction is provided with a groove (4), the other side of the fan-shaped brick body is provided with a convex groove (5) matched with the groove (4), the groove is two square grooves (41), and the square grooves (41) are positioned on two sides of the heat insulation groove (2).

4. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode according to claim 1, is characterized in that: the fan-shaped brick is characterized in that a positioning hole (7) is formed in the lower surface of the fan-shaped brick body (1), the positioning hole (7) penetrates through the lower surface of the fan-shaped brick body (1), and a convex block (6) matched with the positioning hole is formed in the upper surface of the fan-shaped brick body (1).

5. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode according to claim 1, is characterized in that: the overall dimension of the heat insulation groove (2) is 1/3-1/4 of the overall dimension of the fan-shaped brick body (1).

6. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode according to claim 1, is characterized in that: the brick height A of the fan-shaped brick body (1) is 12-16 cm.

7. The magnesia carbon brick used for the slag line part of the LF ladle lining of the waste graphite electrode as claimed in claim 2, wherein: the heat insulation layer (32) is made of polystyrene material, and the support frame (31) is made of steel material.

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