CN215572153U

CN215572153U - Novel heat-insulating wear-resistant brick with staggered density

Info

Publication number: CN215572153U
Application number: CN202120682241.4U
Authority: CN
Inventors: 张永超; 刘双会
Original assignee: Zhengzhou Sijihuo Refractory Co ltd
Current assignee: Zhengzhou Sijihuo Refractory Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-18
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to the field of composite bricks, in particular to a novel heat-insulating wear-resistant brick with staggered density, which comprises a wear-resistant layer, a heat-insulating layer and heat-insulating cotton which are sequentially connected; a plurality of inner cavity bodies are filled in the heat insulation layer; one side of the heat insulation layer, which is far away from the wear-resistant layer, is provided with heat insulation cotton, and the heat insulation cotton is embedded in the end face of the heat insulation layer. The wear-resistant brick has the advantages that the density of the wear-resistant brick is adjusted by arranging the inner cavity, so that the wear-resistant strength and the heat-insulating strength of the composite brick are improved; the use strength of the composite brick is improved by arranging the non-planar connecting surface; through protruding and recess, can promote the convenience and the joint strength of operation.

Description

Novel heat-insulating wear-resistant brick with staggered density

Technical Field

The utility model relates to the field of composite bricks, in particular to the technical field of structures of novel heat-insulating wear-resistant bricks with staggered density.

Background

Under the high-temperature and wear-resistant working environment, the heat insulation performance and the wear resistance of the working parts are higher.

For example, in the cavity of the rotary kiln, heat-insulating wear-resistant bricks need to be built on the inner wall of the rotary kiln, so that the heat-insulating wear-resistant bricks need to be in contact friction with the material to be fired on one hand, and the heat leakage in the cavity needs to be reduced on the other hand, therefore, the requirements on heat preservation, heat insulation and wear resistance are higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel heat-insulating wear-resistant brick with a staggered density, wherein an inner cavity is arranged to adjust the density of a wear-resistant brick body, so that the wear-resistant strength and the heat-insulating strength of the composite brick body are improved.

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

the new type density staggered heat insulation wear-resistant brick comprises a wear-resistant layer and a heat insulation layer which are sequentially connected; the heat insulation layer is filled with a plurality of inner cavity bodies.

Further, the interface between the wear-resistant layer and the heat insulation layer is non-planar.

Further, the bulk density of the insulation layer decreases in a direction away from the wear layer.

Furthermore, one side of the heat insulation layer, which is far away from the wear-resistant layer, is provided with heat insulation cotton, and the heat insulation cotton is inlaid in the end face of the heat insulation layer.

Further, the interface between the wear-resistant layer and the heat insulation layer is corrugated, serrated, trapezoidal or rectangular.

Further, the side surfaces at two ends of the wear-resistant layer are respectively provided with a protrusion and a groove which are matched with each other.

Further, the heat insulation layer is sequentially divided into a first heat insulation layer, a second heat insulation layer and a third heat insulation layer along the direction far away from the wear-resistant layer; the bulk density of the first thermal barrier layer, the bulk density of the second thermal barrier layer, and the bulk density of the third thermal barrier layer decrease in order.

Further, two ends of an interface of the wear-resistant layer and the heat insulation layer extend to the outer edge of the third heat insulation layer.

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

1. the body density of wear-resisting dress is adjusted through the cavity body in, has promoted the abrasion resistance and the thermal-insulated intensity that keeps warm of this composite brick body.

2. Through setting up the face of connecting of non-planar, promoted the use intensity of this composite brick.

3. Through protruding and recess, can promote the convenience and the joint strength of operation.

Drawings

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

Fig. 2 is a schematic structural diagram of another embodiment of the present invention.

In the figure: 1-a wear resistant layer; 11-a bump; 12-a first groove; 2-a heat insulation layer; 21-a first insulating layer; 22-a second insulating layer; 23-a third insulating layer; 3-inner cavity body; 4-heat insulation cotton.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1:

as shown in fig. 1-2, the novel bulk density staggered heat-insulation wear-resistant brick comprises a wear-resistant layer 1 and a heat-insulation layer 2 which are connected in sequence; a plurality of inner cavity bodies 3 are filled in the heat insulation layer 2.

One embodiment is: wearing layer 1 is high strength, high temperature resistant wear-resisting brick layer, and insulating layer 2 is the thermal-insulated heat preservation firebrick of low heat conductivity, and thermal-insulated cotton 4 is the high temperature glass cotton, promptly: the wear-resistant layer 1 and the heat-insulating layer 2 are refractory bricks with different heat conduction and wear-resistant coefficients prepared from different refractory materials; an inner cavity body 3 is arranged in the heat insulation layer 2 to reduce the bulk density of the heat insulation layer 2 and improve the heat insulation effect;

the other implementation mode is as follows: wear-resisting layer 1 and insulating layer 2 are the high strength of the same material, the high temperature resistant wear-resisting brick body, only are filled with the cavity body 3 in insulating layer 2 intussuseption, reduce insulating layer 2's bulk density to promote insulating layer 2's the thermal-insulated effect of heat preservation, this kind of embodiment, the material of the brick body is same, the bulk strength of the brick body is great, in order to reduce the easy cracked phenomenon of interface between the different materials, the bulk strength of this thermal-insulated abrasive brick has been promoted.

Preferably, heat insulation cotton 4 is arranged on one side, away from the wear-resistant layer 1, of the heat insulation layer 2, and the heat insulation cotton 4 is inlaid in the end face of the heat insulation layer 2.

When the rotary kiln is in work, the heat insulation cotton 4 is arranged close to the inner wall of the rotary kiln, the wear-resistant layer 1 is arranged far away from the inner wall of the rotary kiln (close to the center of a furnace chamber), after masonry is completed, when the rotary kiln works, the wear-resistant layer 1 and fired materials in the rotary kiln are in direct contact friction, and the heat insulation layer 2 and the heat insulation cotton 4 are used for heat insulation and heat preservation of heat in the furnace chamber, so that leakage of heat in the furnace is reduced, and the using effect is improved; the heat conductivity of the wear-resistant layer 1, the heat-insulating layer 2 and the heat-insulating cotton 4 is reduced in sequence, the wear-resistant strength is reduced in sequence, the characteristics of each working layer are fully utilized, and the composite brick with high heat-insulating effect and high wear-resistant strength is realized.

Preferably, the wear-resistant layer 1 and the heat-insulating layer 2 are formed integrally by jolt squeeze to improve the use strength (when forming, a foaming agent or a substance which is easily decomposed by heating is added into the raw material in the heat-insulating layer 2, so that an inner cavity body 3 is formed in the heat-insulating layer 2 during high-temperature sintering); the heat insulation cotton 4 can fixedly connect the high-temperature glass cotton with the second heat insulation layer 2 in a bonding mode.

The heat insulation cotton 4 is arranged in the groove of the second heat insulation layer 2, and the stability of the high-temperature glass cotton in the using process can be improved by adopting an embedded arrangement mode.

Example 2:

as shown in fig. 1 to 2, the present embodiment optimizes the brick body connecting structure for the above-described embodiments.

In the novel body density dislocation type heat insulation wear-resistant brick, the interface of the wear-resistant layer 1 and the heat insulation layer 2 is a non-plane. Connect the face and be the non-plane, mainly be the bulk density diverse who considers wearing layer 1 and insulating layer 2, directly adopt the connected mode of plane connection face formula, lead to easily connecting cracked condition appearance in face department, consequently, set up to the non-plane for the mutual embedded setting of material between two adjacent working layers can promote the intensity of junction, thereby promotes this composite brick's whole use intensity.

Example 3:

as shown in fig. 1-2, the present embodiment optimizes the connection manner for the above-described embodiments.

Along keeping away from among this novel thermal-insulated abrasive brick of body density formula of shifting wear layer 1's direction, the body density of insulating layer 2 reduces. Low density is reduced, and the heat preservation and insulation effect is improved.

Example 4:

as shown in fig. 1 to 2, the present embodiment optimizes the joint face structure for the above-described embodiments.

The interface between the wear-resistant layer 1 and the thermal insulation layer 2 in the novel bulk density staggered heat-insulation wear-resistant brick is corrugated, serrated, trapezoidal or rectangular. By arranging the corrugated, toothed, trapezoidal or rectangular connecting surface, the contact area can be increased, and the connecting strength is improved.

Example 5:

as shown in fig. 1 to 2, the present embodiment optimizes the structure of the brick body for the above-described embodiment.

In the novel bulk density staggered heat-insulation wear-resistant brick, along the direction away from the wear-resistant layer 1, the heat-insulation layer 2 is sequentially divided into a first heat-insulation layer 21, a second heat-insulation layer 22 and a third heat-insulation layer 23; the bulk density of the first thermal insulation layer 21, the bulk density of the second thermal insulation layer 22, and the bulk density of the third thermal insulation layer 23 are reduced in this order. The volume density and the heat preservation and insulation performance of the heat insulation layer can be adjusted by the material in the corresponding heat insulation layer and the volume of the inner cavity body 3.

Preferably, the bulk density difference among the wear-resistant layer 1, the first heat-insulating layer 21, the second heat-insulating layer 22 and the third heat-insulating layer 23 is kept within a reasonable range during preparation, so that the problem that the wear-resistant brick is easy to break in the use process due to the excessive bulk density difference is avoided, and the overall strength of the wear-resistant brick is influenced.

Example 6:

The two ends of the interface of the wear-resistant layer 1 and the heat-insulating layer 2 in the novel body density staggered heat-insulating wear-resistant brick extend to the outer edge of the third heat-insulating layer 23. As shown in fig. 2, make, wearing layer 1 carries out "encirclement" (embedded setting) with insulating layer 2 both ends and second insulating layer 23 both ends for after a plurality of this composite bricks built by laying bricks or stones, the contact layer between the adjacent brick body is wearing layer 1, promotes the contact strength in the use, prevents to lead to insulating layer 2 wearing and tearing to damage because of the high strength friction in the use, and influences this composite brick's whole life.

Preferably, the inner cavity 3 is not arranged at both sides of the heat insulation layer 2, so as to improve the strength of both sides of the heat insulation layer 2.

Example 7:

The side surfaces at two ends of the wear-resistant layer 1 in the novel heat-insulating wear-resistant brick with the staggered density are respectively provided with a bulge 11 and a groove 12 which are matched with each other. When the composite brick is used for masonry, the protrusions 11 can be clamped into the grooves 12 for connection, and masonry operation is facilitated.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The new type density dislocation variable heat insulation wear-resistant brick is characterized in that: comprises a wear-resistant layer (1) and a heat-insulating layer (2) which are connected in sequence; a plurality of inner cavity bodies (3) are filled in the heat insulation layer (2).

2. The new body density dislocation type heat insulation wear-resistant brick as claimed in claim 1, characterized in that: the interface between the wear-resistant layer (1) and the heat insulation layer (2) is non-planar.

3. The new body density dislocation type heat insulation wear-resistant brick as claimed in claim 1, characterized in that: the bulk density of the heat insulation layer (2) decreases in the direction away from the wear resistant layer (1).

4. The new body density dislocation type heat insulation wear-resistant brick as claimed in claim 1, characterized in that: one side of the heat insulation layer (2) far away from the wear-resistant layer (1) is provided with heat insulation cotton (4), and the heat insulation cotton (4) is embedded in the end face of the heat insulation layer (2).

5. The new body density staggered thermal insulation wear-resistant brick as claimed in claim 2, characterized in that: the interface between the wear-resistant layer (1) and the heat insulation layer (2) is corrugated, serrated, trapezoidal or rectangular.

6. The new body density staggered thermal insulation wear-resistant brick as claimed in claim 2, characterized in that: and the side surfaces at two ends of the wear-resistant layer (1) are respectively provided with a bulge (11) and a groove (12) which are matched with each other.

7. The new body density staggered thermal insulation wear-resistant brick as claimed in claim 3, characterized in that: the heat insulation layer (2) is sequentially divided into a first heat insulation layer (21), a second heat insulation layer (22) and a third heat insulation layer (23) along the direction far away from the wear-resistant layer (1); the bulk density of the first heat insulating layer (21), the bulk density of the second heat insulating layer (22), and the bulk density of the third heat insulating layer (23) are reduced in this order.

8. The new body density staggered thermal insulation wear-resistant brick as claimed in claim 3, characterized in that: and two ends of the interface of the wear-resistant layer (1) and the heat insulation layer (2) extend to the outer edge of the third heat insulation layer (23).