CN218955476U

CN218955476U - Special-shaped refractory brick and kiln lining structure

Info

Publication number: CN218955476U
Application number: CN202222138708.6U
Authority: CN
Inventors: 郭晓辉; 韩晨辉; 韩明军
Original assignee: Zhengzhou Zhongben Refractory Technology Co ltd
Current assignee: Zhengzhou Zhongben Refractory Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-05-02
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a special-shaped refractory brick and a kiln lining structure, which comprises a kiln outer wall, wherein at least two layers of linings built by special-shaped refractory bricks are arranged on the inner side of the kiln outer wall; a plurality of uniformly distributed anti-expansion gaps are formed between the inner side of the kiln outer wall and the outer side of the adjacent lining, a plurality of uniformly distributed anti-expansion gaps are formed between the adjacent lining, and the anti-expansion gaps between the adjacent layers are arranged in a staggered manner; the special-shaped refractory brick comprises a first arc-shaped brick matched with the kiln outer wall and a second arc-shaped brick integrally formed with the first arc-shaped brick, and the arc length of the second arc-shaped brick is greater than that of the first arc-shaped brick. According to the special-shaped refractory brick and the kiln lining structure, the thermal expansion of the special-shaped refractory brick when heated can be buffered through the plurality of expansion-preventing gaps, so that the stability of the lining structure is ensured; effectively improves the stability and heat preservation performance of the kiln lining at high temperature and prevents structural damage caused by thermal expansion.

Description

Special-shaped refractory brick and kiln lining structure

Technical Field

The utility model relates to the technical field of kiln linings, in particular to a special-shaped refractory brick and a kiln lining structure.

Background

The kiln lining structure is generally built or poured by refractory materials, and the kiln steel shell is protected to work smoothly under long-term high-temperature working conditions. When the inner lining is built by using the refractory bricks in a general high-temperature kiln, the influence of expansion caused by heat and contraction caused by cold during the operation of the kiln on the inner lining structure is required to be considered, the strength of the masonry structure is not reduced, the expansion joint is required to be reserved during the inner lining building, the external space is also protected, the air in the kiln cannot enter the kiln or cannot escape outwards, and the heat slowing down effect is reduced as much as possible.

In the prior art, the expansion joint on the lining of the high-temperature kiln furnace wall is reserved with a zigzag mode and a straight-through mode, no matter which mode is adopted, the expansion joint only exists between the end parts of adjacent refractory brick bodies when the lining is built, namely, when thermal expansion occurs, the expansion prevention effect is only achieved in the directions of the two ends of the refractory brick bodies, but the thermal stress is dispersed to the periphery, so that the side surfaces of the refractory brick bodies still can be extruded when the thermal expansion occurs, and even the lining is damaged; meanwhile, the brick bodies built by the inner lining are mutually clung from inside to outside, few heat insulation gaps exist, and heat transfer is still an important factor of temperature dissipation. What is needed is a special-shaped refractory brick and kiln lining structure which can be further suitable for the high-temperature vertical kiln wall and can play roles in preventing expansion, insulating heat and preserving heat.

Disclosure of Invention

The utility model aims to provide a special-shaped refractory brick and a kiln lining structure, which are used for solving the problem that the expansion joint on the high-temperature vertical kiln lining is reserved, and the expansion prevention and heat preservation effects are required to be further improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a special-shaped refractory brick and kiln lining structure, includes kiln outer wall, the inboard of kiln outer wall is provided with at least two-layer lining by special-shaped refractory brick masonry; wherein, the liquid crystal display device comprises a liquid crystal display device,

a plurality of uniformly distributed anti-expansion gaps are formed between the inner side of the kiln outer wall and the outer side of the adjacent lining, a plurality of uniformly distributed anti-expansion gaps are formed between the adjacent lining, and the anti-expansion gaps between the adjacent layers are arranged in a staggered manner;

the special-shaped refractory bricks comprise first arc-shaped bricks matched with the outer wall of the kiln and second arc-shaped bricks integrally formed with the first arc-shaped bricks, and the arc length of the second arc-shaped bricks is greater than that of the first arc-shaped bricks.

The further technical scheme is as follows: the outer end of the first arc-shaped brick abuts against a brickwork joint between two adjacent second arc-shaped bricks on the outer side of the first arc-shaped brick.

The further technical scheme is as follows: one end of the second arc-shaped brick is provided with a positioning groove, and the other end of the second arc-shaped brick is provided with a positioning protrusion matched with the positioning groove.

The further technical scheme is as follows: the top surface of dysmorphism resistant firebrick is provided with the reference column, the bottom surface of dysmorphism resistant firebrick be provided with reference column assorted constant head tank.

The further technical scheme is as follows: the cross section of the first arc-shaped brick is arranged into a trapezoid with large outside and small inside.

The further technical scheme is as follows: the expansion-preventing gap is filled with a fireproof heat-insulating material.

The further technical scheme is as follows: the special-shaped refractory bricks are spinel bricks.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

the utility model provides a special-shaped refractory brick and a kiln lining structure, wherein at least two layers of linings are built on the inner side of an outer kiln wall by using the special-shaped refractory brick, expansion prevention gaps are uniformly distributed between each layer of lining and between the outermost layer of lining and the outer kiln wall, and when the kiln is heated, the thermal deformation of the special-shaped refractory brick can be buffered through the expansion prevention gaps, so that the stability of the lining structure is ensured; and each special-shaped refractory brick is propped against the end parts of two special-shaped refractory bricks by the special-shaped refractory bricks on the adjacent inner sides during thermal deformation, so that the end parts of the two special-shaped refractory bricks can be ensured to be heated and outwards bulge, and further the arc length is increased conveniently during thermal deformation, so that the thermal deformation of the end parts of the two special-shaped refractory bricks is adapted.

Drawings

FIG. 1 is a schematic structural view of a shaped refractory brick and kiln liner structure according to the present utility model.

FIG. 2 is a schematic view of the structure of the shaped refractory brick of FIG. 1 according to the present utility model.

Fig. 3 is a schematic view of another view of fig. 2 according to the present utility model.

Reference numerals: 1. an outer wall of the kiln; 2. a special-shaped refractory brick; 21. a first arcuate tile; 22. a second arc brick; 3. a lining; 4. an anti-swelling gap; 5. laying joints; 6. a positioning groove; 7. positioning the bulge; 8. positioning columns; 9. a positioning groove; 10. refractory and heat insulating material.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

in the embodiment, as shown in fig. 1, 2 and 3, a special-shaped refractory brick and kiln lining structure comprises a kiln outer wall 1 (high-temperature kiln wall), wherein at least two layers of lining 3 built by special-shaped refractory bricks 2 are arranged on the inner side of the kiln outer wall 1; a plurality of uniformly distributed anti-expansion gaps 4 are formed between the inner side of the kiln outer wall 1 and the outer side of the adjacent lining 3, a plurality of uniformly distributed anti-expansion gaps 4 are formed between the adjacent lining 3, and the anti-expansion gaps 4 between the adjacent layers are arranged in a staggered manner; the special-shaped refractory brick 2 comprises a first arc-shaped brick 21 matched with the kiln outer wall 1 and a second arc-shaped brick 22 integrally formed with the first arc-shaped brick 21, wherein the arc length of the second arc-shaped brick 22 is longer than that of the first arc-shaped brick 21. The outer ends of the first arc bricks 21 abut against the brickwork 5 between two adjacent second arc bricks 22 on the outer side thereof.

The working process of the utility model is as follows: the special-shaped refractory bricks 2 are built into at least two layers of inner liners 3 through refractory clay on the inner side of the kiln outer wall 1, expansion-preventing gaps 4 are uniformly distributed between the adjacent inner liners 3 and between the outermost inner liner 3 and the kiln outer wall 1, when the kiln is heated, the thermal deformation generated by the special-shaped refractory bricks can be buffered through the expansion-preventing gaps 4, the structural stability of the inner liners 3 is ensured, and meanwhile, the expansion-preventing gaps 4 between the adjacent layers are arranged in a staggered mode, so that the heat preservation effect of the inner liners 3 is improved, and the uniformity of thermal expansion is improved; and each special-shaped refractory brick 2 is propped against the ends of two special-shaped refractory bricks by the special-shaped refractory bricks 2 on the inner side adjacent to each other during thermal deformation, namely, the outer ends of the first arc-shaped bricks 21 are propped against the joint 5 between the two adjacent second arc-shaped bricks 22 on the outer side of the first arc-shaped bricks, so that the ends of the two special-shaped refractory bricks 3 can be promoted to be heated and outwards bulge, further, the increase of arc length during thermal deformation is facilitated, and the thermal deformation of the ends of the two special-shaped refractory bricks is adapted. The special-shaped refractory brick and kiln lining structure can effectively improve the stability and heat preservation performance of the kiln lining at high temperature and prevent structural damage caused by thermal expansion.

Preferably, one end of the second arc brick 22 is provided with a positioning groove 6, and the other end thereof is provided with a positioning protrusion 7 adapted to the positioning groove 6.

When building, with the dysmorphism resistant firebrick 2 of layer, second arc brick 22 cooperatees with the constant head tank 6 of adjacent second arc brick 22 through location arch 7, can play the effect of conveniently counterpointing, is convenient for build by laying bricks or stones, and when thermal expansion down, can play the cushioning effect between location arch 7 and the constant head tank 6.

Preferably, the top surface of the special-shaped refractory brick 2 is provided with a positioning column 8, and the bottom surface of the special-shaped refractory brick 2 is provided with a positioning groove 9 matched with the positioning column 8.

When the building is performed, the positioning columns 8 and the positioning grooves 9 are matched, so that the building is convenient, and meanwhile, the strength and the stability of the structure are enhanced.

Preferably, the cross section of the first arc brick 21 is provided in a trapezoid shape with a large outside and a small inside.

The contact surface between the special-shaped refractory bricks 2 and the outer layer structure is effectively enlarged, the stability is improved, and the expansion prevention gap 4 which is as large as possible can be formed.

Preferably, the expansion-preventing gap 4 is filled with a refractory and heat-insulating material 10.

For example, the fire-resistant cotton is filled, and the heat preservation and heat insulation effects are improved.

Preferably, the shaped refractory brick 2 is a spinel brick.

The spinel brick has the characteristics of high temperature resistance, small thermal expansion coefficient, good thermal stability, strong slag resistance, corrosion resistance, strong spalling capacity and the like. Spinel bricks are widely used in refractory materials, steel smelting, cement rotary kilns and glass industry kilns.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a dysmorphism refractory brick and kiln lining structure, includes kiln outer wall (1), its characterized in that: at least two layers of inner linings (3) built by special-shaped refractory bricks (2) are arranged on the inner side of the kiln outer wall (1); wherein, the liquid crystal display device comprises a liquid crystal display device,

a plurality of uniformly distributed expansion-preventing gaps (4) are formed between the inner side of the kiln outer wall (1) and the outer side of the adjacent lining (3), a plurality of uniformly distributed expansion-preventing gaps (4) are formed between the adjacent lining (3), and the expansion-preventing gaps (4) between the adjacent layers are arranged in a staggered mode;

the special-shaped refractory brick (2) comprises a first arc-shaped brick (21) matched with the kiln outer wall (1) and a second arc-shaped brick (22) integrally formed with the first arc-shaped brick (21), and the arc length of the second arc-shaped brick (22) is greater than that of the first arc-shaped brick (21).

2. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: the outer end of the first arc-shaped brick (21) abuts against a brickwork joint (5) between two adjacent second arc-shaped bricks (22) on the outer side of the first arc-shaped brick.

3. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: one end of the second arc-shaped brick (22) is provided with a positioning groove (6), and the other end of the second arc-shaped brick is provided with a positioning protrusion (7) matched with the positioning groove (6).

4. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: the top surface of dysmorphism resistant firebrick (2) is provided with reference column (8), the bottom surface of dysmorphism resistant firebrick (2) be provided with reference column (8) assorted constant head tank (9).

5. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: the cross section of the first arc-shaped brick (21) is arranged into a trapezoid with large outside and small inside.

6. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: the anti-expansion gap (4) is filled with a fireproof heat insulation material (10).

7. The special-shaped refractory brick and kiln lining structure according to claim 1, wherein: the special-shaped refractory brick (2) is a spinel brick.