CN218270201U

CN218270201U - Micropore low-heat-conduction kiln brick

Info

Publication number: CN218270201U
Application number: CN202222478178.XU
Authority: CN
Inventors: 郅晓军; 李海涛; 候素克; 翟柠崤; 孙成军
Original assignee: Xinmi Branch Of Henan Ruitai Refractory Technology Co ltd
Current assignee: Xinmi Branch Of Henan Ruitai Refractory Technology Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-10
Anticipated expiration: 2032-09-16

Abstract

The utility model provides a micropore low heat conduction kiln brick relates to high temperature kiln refractory material technical field, has solved the weak easy atress fracture of kiln brick afterbody that exists among the prior art and has influenced the technical problem of rotary kiln operation. This micropore low heat conduction kiln brick includes the brick body and heat preservation portion, set up the mounting groove on the terminal surface of the brick body, heat preservation portion sets up in the mounting groove, the inner wall of mounting groove is the cambered surface type. The utility model discloses a mounting groove installation heat preservation portion of cambered surface shape wall so can disperse stress effectively, avoids the mounting groove to form weak point and damages, leads to the rotary kiln can not normal operating.

Description

Micropore low-heat-conduction kiln brick

Technical Field

The utility model belongs to the technical field of high temperature kiln refractory material technique and specifically relates to a micropore low heat conduction kiln brick.

Background

At present, in order to reduce heat loss and achieve heat preservation and heat insulation of cement rotary kiln bricks in China, a common mode is to open a trapezoidal groove at the tail of each kiln brick and embed heat insulation materials, and the mode has the defects that a weak link is formed at the tail of each kiln brick after the trapezoidal groove is opened, when the kiln bricks are subjected to thrust shearing force in the operation process, the grooved parts are easy to break, and the safe operation of a rotary kiln is influenced after the grooves break.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a micropore low heat conduction kiln brick has solved the weak easy atress fracture of kiln brick afterbody that exists among the prior art and has influenced the technical problem of rotary kiln operation. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

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

the utility model provides a low heat conduction kiln brick of micropore, including the brick body and heat preservation portion, set up the mounting groove on the terminal surface of the brick body, heat preservation portion sets up in the mounting groove, the inner wall of mounting groove is the cambered surface shape.

Preferably, the installation groove is arranged along the whole length of the brick body in the thickness direction.

Preferably, the brick body is made of kiln brick raw materials with the size of more than or equal to 200 meshes.

Preferably, still include sealing, sealing is established in the wraparound on the brick body, the heat preservation position is located sealing with between the brick body.

Preferably, the material of the sealing part is a high temperature resistant material.

Preferably, the cross-section of brick body thickness direction is trapezoidal, the thickness of the head end of the brick body is less than the thickness of the tail end of the brick body, the mounting groove sets up on the tail end.

Preferably, the depth range of the mounting groove is 10 mm-100 mm, and the width range of the mounting groove at the end face of the brick body is 10 mm-198 mm.

Preferably, the length of the mounting groove ranges from 30 mm to 150 mm.

This application adopts above technical scheme, possesses following beneficial effect at least:

the inside of mounting groove is the cambered surface shape, so can make the kiln brick disperse stress effectively when the atress, avoid the brick body to damage, lead to the rotary kiln can not normal operating. And the size of the kiln brick raw material adopted by the brick body is more than or equal to 200 meshes, so that the porosity of the kiln brick prepared from the material is increased, the thermal shock stability is improved, and the thermal conductivity is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a microporous low thermal conductivity kiln brick according to an embodiment of the present invention;

fig. 2 is a schematic side view of a microporous low thermal conductivity kiln brick provided by the embodiment of the utility model.

In the figure, 1, a brick body; 2. a heat-insulating part; 3. mounting grooves; 4. and a sealing part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The specific embodiment of the utility model provides a micropore hangs down heat conduction kiln brick, it is main including the brick body 1 and heat preservation portion 2, the brick body 1 is the major structure of kiln brick, heat preservation portion 2 sets up and is used for playing the heat preservation effect on the brick body, set up mounting groove 3 on the terminal surface of the concrete brick body 1, mounting groove 3 sets up on one of them terminal surface of the brick body 1, heat preservation portion 2 sets up in mounting groove 3, and the inner wall design of this mounting groove 3 is the cambered surface shape, cross-section as shown in the figure 1 is the arc cell body structure, the setting of the mounting groove 3 of cambered surface shape like this, can be the brick body 1 of 3 week sides of mounting groove can be with the effectual dispersion of the stress that receives, avoid the brick body to rotate the in-process and damage at the rotary kiln, further can avoid the kiln brick damage to lead to the rotary kiln can not normal operating.

The mounting groove 3 in this application leads to long the setting along the 1 thickness direction of the brick body, so keep warm portion 2 also can follow and set up on the terminal surface of the brick body 1 usually, keep warm portion 2 between the adjacent kiln brick is connected after building by laying bricks or stones.

In one embodiment, the brick body 1 is made of kiln brick raw materials with the size of 200 meshes or more. The kiln brick raw material can be pleonaste or pleonaste, and the like, the raw material is ground into fine powder, then the fine powder is formed by high pressure and is sintered in a high-temperature kiln, a plurality of micropores can be formed in the sintering process, after the micropores are formed in the raw material, the sintered material is crushed, screened, re-bricked and sintered, and the porosity of the microporous low-heat-conductivity kiln brick processed in the way is increased, the thermal shock stability is improved, and the thermal conductivity is reduced.

The concrete embodiment of this application still sets up sealing 4 for realize sealed fixed to heat preservation portion 2, sealing 4 wraps up in and establishes on the brick body 1, heat preservation portion 2 is located between sealing 4 and the brick body 1, this sealing 4 can only seal fixedly to the part of the brick body 1 that sets up heat preservation portion 2, also can seal parcel to the whole brick body 1, sealing 4 is used for playing the effect sealed fixed to heat preservation portion 2, prevent that the kiln brick from building the in-process in the transport, prevent that thermal insulation material from coming off. And the material of sealing 4 can select high temperature resistant material for use, for example aluminium foil etc. prevents that high temperature from leading to sealing 4 and heat preservation portion 2 to be ablated, plays the effect of protection heat preservation portion 2.

The low heat conduction kiln brick of micropore in this application is the wide brick body structure of the narrow tail end of head end, and the cross-section of the 1 thickness direction of specific brick body is trapezoidal, as shown in figure 2, the thickness of the head end (upper portion) of the brick body 1 is less than the thickness of the tail end (lower part) of the brick body 1, and mounting groove 3 sets up on the tail end. The length direction of the mounting groove 3 is the thickness direction of the brick body 1, namely the transverse direction in the attached figure 2.

In the specific implementation provided by the present application, the depth of the mounting groove 3 ranges from 10 mm to 100 mm, for example, the depth may range from 30 mm, 50 mm, 80 mm, etc., and the width of the mounting groove 3 at the end face of the brick body 1 ranges from 10 mm to 198 mm, for example, the width is 30 mm, 90 mm, 180 mm, etc.

The size of the microporous low-heat-conduction kiln brick can be designed according to actual needs, and two types are provided in the specific embodiment of the application; a kiln brick with the length (vertical direction in figure 1) of 220 mm, the width of 198 mm, the thickness of the head end of 66.5 mm and the thickness of the tail end of 76.5 mm; the other is a kiln brick with the length of 220 mm, the width of 198 mm, the thickness of the head end of 69 mm and the thickness of the tail end of 74 mm.

The length of the mounting groove 3 is the thickness of the tail end of the brick body 1, and the length range of the mounting groove 3 is 30-150 mm. Such as 76.5 mm and 74 mm as provided in the embodiments of the present application.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a micropore low heat conduction kiln brick which characterized in that, includes the brick body (1) and heat preservation portion (2), set up mounting groove (3) on the terminal surface of the brick body (1), heat preservation portion (2) set up in mounting groove (3), the inner wall of mounting groove (3) is the cambered surface shape.

2. A microporous low thermal conductivity kiln brick according to claim 1, characterized in that the mounting groove (3) is arranged throughout the length of the brick body (1) in the thickness direction.

3. A microporous low thermal conductivity kiln brick according to claim 1, characterized in that the brick body (1) is made of kiln brick raw material with size of 200 mesh or larger.

4. A microporous low-heat-conductive kiln brick according to claim 1, characterized by further comprising a sealing part (4), wherein the sealing part (4) is wrapped on the brick body (1), and the heat-insulating part (2) is located between the sealing part (4) and the brick body (1).

5. A microporous low thermal conductivity kiln brick according to claim 4, characterized in that the material of the sealing portion (4) is a high temperature resistant material.

6. A microporous low-heat-conductivity kiln brick according to claim 1, characterized in that the cross section of the brick body (1) in the thickness direction is trapezoidal, the thickness of the head end of the brick body (1) is smaller than the thickness of the tail end of the brick body (1), and the mounting groove (3) is arranged on the tail end.

7. A microporous low thermal conductivity kiln brick according to claim 1, characterized in that the depth of the mounting groove (3) ranges from 10 mm to 100 mm, and the width of the mounting groove (3) at the end face of the brick body (1) ranges from 10 mm to 198 mm.

8. A microporous low thermal conductivity kiln brick according to claim 2, characterized in that the length of the mounting groove (3) ranges from 30 mm to 150 mm.