CN112048591A

CN112048591A - Split type air brick

Info

Publication number: CN112048591A
Application number: CN201910488840.XA
Authority: CN
Inventors: 邵小龙; 蒋伟杰; 武刚
Original assignee: Changzhou Suzhou Refractory And Metallurgical Refractories Co ltd
Current assignee: Changzhou Suzhou Refractory And Metallurgical Refractories Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-12-08

Abstract

The invention discloses a split-type air brick, which comprises a brick cup, wherein the bottom end of the brick cup is connected with a brick cup in a threaded manner, the center of the outer side of the brick cup is provided with a sealing groove, a sealing sheet is clamped in the sealing groove, two ends of the sealing sheet are symmetrically provided with mounting holes, a metal air pipe vertically connected with the sealing sheet is fixedly arranged between the mounting holes, one end of the metal air pipe penetrates through the sealing sheet and is communicated with an air vent chamber, the top end of the air vent chamber is provided with an air vent, and the top of the air vent is fixedly provided with an air brick core. And the argon can be stably led into the molten steel by matching with the sealing washer and the sealing piece.

Description

Split type air brick

Technical Field

The invention relates to an air brick, in particular to a split type air brick, and belongs to the technical field of equipment in the metallurgical industry.

Background

In the ferrous metallurgy industry, the purpose of stirring molten steel is achieved by blowing argon into the molten steel, the temperature and the chemical composition of the molten steel can be homogenized, and the removal of inclusions or the control of the form of the inclusions are promoted, so that the method is a molten steel refining mode commonly adopted in the modern metallurgy industry. The ladle bottom-blown air brick is an important component of external refining of a steel-making furnace, and the air brick is taken as an important functional element in the refining process and is divided into an integral air brick and a split air brick according to the installation mode. Split type air brick can be for integral air brick, and the quick replacement air brick core under the hot attitude does not influence the normal turnover of ladle. For some steel ladles with long refining time, high temperature and vacuum refining, the service life of the brick core of the air brick is short due to harsh use conditions. Therefore, the split air brick has the advantages that the air brick core can be replaced in a hot state, the normal operation of an argon blowing system is not influenced, and the normal operation of production procedures is ensured.

The existing split type air brick has a single structure, the air brick is extremely easy to generate the defects of eccentricity, difference, gaps and the like in the installation process, the problem of metal liquid leakage of the air brick is easy to occur, and meanwhile, the service life of the air brick is reduced, so that certain economic loss is brought to enterprises. Therefore, we improve the above and propose a split type air brick.

Disclosure of Invention

The invention aims to provide a split type air brick, which aims to solve the problems that the traditional air brick provided in the background art has a single structure, is easy to generate the defects of eccentricity, difference, gaps and the like in the installation process, and is easy to cause molten metal leakage.

In order to achieve the purpose, the invention provides the following technical scheme: a split type air brick comprises a brick cup, the bottom end of the brick cup is connected with a brick cover in a threaded manner, the center of the outer side of the brick cover is provided with a sealing groove, sealing pieces are clamped in the sealing grooves, mounting holes are symmetrically formed in two ends of each sealing piece, metal air pipes vertically connected with the sealing pieces are fixedly arranged between the mounting holes, one end of the metal air pipe penetrates through the sealing sheet and is communicated with the ventilation chamber, the top end of the ventilation chamber is provided with a vent hole, the top of the vent hole is fixedly connected with a gas permeable brick core, the periphery of the gas permeable brick core is clamped with a sleeve brick, a first refractory mortar layer is filled between the inner wall of the sleeve brick and the outer wall of the air brick core, a seat brick inner hole corresponding to the sleeve brick is arranged in the center of the seat brick, limiting clamping grooves are symmetrically formed in the same axial direction of the inner wall of the brick cup inner hole, and a second refractory mud layer is filled between the outer wall of the sleeve brick and the inner wall of the brick cup inner hole.

As a preferred technical scheme of the invention, the inner side of the brick cover port is annularly provided with a sealing gasket connected with the bottom end of the brick cup.

As a preferred technical scheme of the invention, the center of the top end of the brick cup is provided with an air blowing opening corresponding to the air brick core.

As a preferable technical scheme of the invention, a metal bolt in threaded connection with the brick cover is arranged in the mounting hole in a penetrating manner.

As a preferred technical scheme of the invention, the limiting clamping strips corresponding to the limiting clamping grooves are symmetrically fixed on the outer side of the sleeve brick, and the limiting clamping strips and the sleeve brick are of an integrally formed structure.

As a preferred technical scheme of the invention, the inner hole of the brick cup and the sleeve brick are both in a circular truncated cone shape.

Compared with the prior art, the invention has the beneficial effects that: compared with the traditional air brick, in the specific use, the invention has the advantages that the circular truncated cone-shaped inner hole of the brick cup is symmetrically provided with the limiting clamping grooves, so that the connection between the brick cup and the brick cup is firmer, the eccentric and differential phenomena can not occur, the first refractory clay layer is filled between the core of the air brick and the inner wall of the brick cup, the second refractory clay layer is filled between the outer wall of the brick cup and the inner hole of the brick cup, the gap can not be generated when the air brick is installed, and the sealing washer and the sealing sheet are matched, so that the argon can stably lead to the molten steel, and the use effect is good.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the breather chamber and the metal gas pipe of the present invention;

FIG. 3 is a schematic view of a brick cup construction of the present invention;

in the figure: 1. an air blowing port; 2. brick setting; 3. inner holes of the brick cup; 4. sleeving bricks; 5. a first refractory mortar layer; 6. a metal bolt; 7. a metal gas pipe; 8. sealing the sheet; 9. a sealing groove; 10. a breather chamber; 11. a second refractory mortar layer; 12. a gas permeable brick core; 13. a vent hole; 14. a limiting clamping groove; 15. mounting holes; 16. a brick cover; 17. a gasket is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention provides a split-type air brick, which comprises a brick cup 2, wherein a brick cup 16 is connected to the bottom end of the brick cup 2 in a threaded manner, a sealing groove 9 is formed in the center of the outer side of the brick cup 16, a sealing sheet 8 is clamped in the sealing groove 9, mounting holes 15 are symmetrically formed in two ends of the sealing sheet 8, a metal air pipe 7 vertically connected with the sealing sheet 8 is fixedly arranged between the mounting holes 15, one end of the metal air pipe 7 penetrates through the sealing sheet 8 and is communicated with an air vent chamber 10, an air vent 13 is formed in the top end of the air vent chamber 10, an air brick core 12 is fixedly connected to the top of the air vent 13, a brick sleeve 4 is clamped on the periphery of the air brick core 12, a first refractory mortar layer 5 is filled between the inner wall of the brick sleeve 4 and the outer wall of the air brick core 12, a brick cup inner hole 3 corresponding to the brick sleeve 4 is formed in the, and a second refractory mortar layer 11 is filled between the outer wall of the sleeve brick 4 and the inner wall of the brick cup inner hole 3.

Preferably, a sealing gasket 17 connected with the bottom end of the brick cup 2 is annularly arranged on the inner side of the end opening of the brick cover 16, so that air leakage at the connecting end opening of the brick cover 16 and the brick cup 2 is prevented.

Preferably, the center of the top end of the brick cup 2 is provided with an air blowing port 1 corresponding to the air brick core 12, so that argon can be conveniently and uniformly diffused into molten steel.

Preferably, the metal bolt 6 which is in threaded connection with the brick cover 16 penetrates through the mounting hole 15, so that the sealing piece 8 is convenient to fix, and the air brick is safer to use.

Preferably, the outer side of the sleeve brick 4 is symmetrically fixed with a limiting clamping strip corresponding to the limiting clamping groove 14, and the limiting clamping strip and the sleeve brick 4 are of an integrally formed structure, so that the sleeve brick 4 and the seat brick 2 are stably connected.

Preferably, the brick cup inner hole (3) and the sleeve brick (4) are both in a circular truncated cone shape, so that the defects of eccentricity, difference, gaps and the like cannot be generated during the installation of the air brick, and the condition that metal liquid leaks from the air brick is avoided.

When the split type air brick is used, the defects of eccentricity, dislocation, gaps and the like cannot be generated in the installation process, and the advantage of metal liquid leakage of the air brick is avoided.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The split type air brick comprises a brick cup (2) and is characterized in that a brick cup cover (16) is connected to the bottom end of the brick cup (2) in a threaded mode, a sealing groove (9) is formed in the center of the outer side of the brick cup (16), a sealing sheet (8) is connected in the sealing groove (9) in a clamping mode, mounting holes (15) are symmetrically formed in two ends of the sealing sheet (8), a metal air pipe (7) vertically connected with the sealing sheet (8) is fixedly arranged between the mounting holes (15), one end of the metal air pipe (7) penetrates through the sealing sheet (8) and is communicated with an air vent chamber (10), an air vent (13) is formed in the top end of the air vent chamber (10), an air brick core (12) is fixedly connected to the top of the air vent (13), a sleeve brick (4) is connected to the periphery of the air brick core (12) in a clamping mode, and a first refractory mud layer (, the brick cup is characterized in that a brick cup inner hole (3) corresponding to the sleeve brick (4) is formed in the center of the brick cup (2), limiting clamping grooves (14) are symmetrically formed in the same axial direction of the inner wall of the brick cup inner hole (3), and a second refractory mud layer (11) is filled between the outer wall of the sleeve brick (4) and the inner wall of the brick cup inner hole (3).

2. The split-type air brick according to claim 1, wherein: and a sealing gasket (17) connected with the bottom end of the brick cup (2) is annularly arranged on the inner side of the port of the brick cover (16).

3. The split-type air brick according to claim 1, wherein: the center of the top end of the brick cup (2) is provided with an air blowing opening (1) corresponding to the air brick core (12).

4. The split-type air brick according to claim 1, wherein: and a metal bolt (6) in threaded connection with the brick cover (16) penetrates through the mounting hole (15).

5. The split-type air brick according to claim 1, wherein: the limiting clamping strips corresponding to the limiting clamping grooves (14) are symmetrically fixed on the outer side of the sleeve brick (4), and the limiting clamping strips and the sleeve brick (4) are of an integrally formed structure.

6. The split-type air brick according to claim 1, wherein: the socket brick inner hole (3) and the sleeve brick (4) are both in a circular truncated cone shape.