CN219956110U - Corundum refractory brick with low heat conduction - Google Patents
Corundum refractory brick with low heat conduction Download PDFInfo
- Publication number
- CN219956110U CN219956110U CN202320780724.7U CN202320780724U CN219956110U CN 219956110 U CN219956110 U CN 219956110U CN 202320780724 U CN202320780724 U CN 202320780724U CN 219956110 U CN219956110 U CN 219956110U
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- China
- Prior art keywords
- refractory brick
- brick body
- cavity
- heat
- corundum
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- 239000011449 brick Substances 0.000 title claims abstract description 75
- 239000010431 corundum Substances 0.000 title claims abstract description 21
- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 21
- 239000010410 layer Substances 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 description 7
- 239000002585 base Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- OFCNXPDARWKPPY-UHFFFAOYSA-N allopurinol Chemical compound OC1=NC=NC2=C1C=NN2 OFCNXPDARWKPPY-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model discloses a low-heat-conductivity corundum refractory brick, and relates to the technical field of refractory bricks, comprising a refractory brick body, wherein the refractory brick body comprises a base layer, a heat-conducting layer, a protective layer and a heat-insulating layer, and a lightweight reinforcing mechanism is arranged in the refractory brick body; the lightweight reinforcing mechanism comprises a connecting rib and a bearing rib, a cavity is formed in the refractory brick body, one end of the connecting rib is fixedly connected to the inner wall of the cavity, and the other end of the connecting rib is fixedly connected with the side wall of the bearing rib; according to the technical scheme provided by the utility model, the weight of the refractory brick body can be reduced by adopting the lightweight reinforcing mechanism and arranging the cavity in the refractory brick body, the heat conductivity of the refractory brick body can be greatly reduced by air in the cavity, the heat conductivity coefficient of the refractory brick body is lower, the weight of the refractory brick body can be reduced and the integral strength of the refractory brick body can be ensured by arranging the bearing ribs and the connecting ribs, so that the corundum refractory brick is more convenient to transport and use.
Description
Technical Field
The utility model relates to the technical field of refractory bricks, in particular to a low-heat-conduction corundum refractory brick.
Background
The transition zone of the cement kiln is a zone with the most severe use condition in the cement kiln, the zone has frequent temperature change, enters and exits when flame is generated, and falls off when kiln coating is hung, and kiln lining materials are always in a kiln coating-free protection state and are directly exposed under high-temperature radiation and hot gas flow flushing, so that the zone of the kiln lining materials not only bears chemical corrosion caused by heavy metal, alkali compounds, clinker liquid phase and the like, but also suffers from thermal shock spalling of materials caused by thermal stress caused by temperature change, but also suffers from flushing abrasion of materials, mechanical stress caused by mechanical shock and the like.
The traditional corundum refractory brick has large weight, so that the transportation and the use are troublesome, and the transportation and the use are inconvenient.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the low-heat-conduction corundum refractory brick which is used for solving the problem that the prior art is inconvenient to transport and use.
In view of the above, the utility model provides a low-heat-conductivity corundum refractory brick, which comprises a refractory brick body, wherein the refractory brick body comprises a base layer, a heat-conducting layer, a protective layer and a heat-insulating layer, and a lightweight reinforcing mechanism is arranged inside the refractory brick body;
the lightweight strengthening mechanism comprises a connecting rib and a bearing rib, a cavity is formed in the refractory brick body, one end of the connecting rib is fixedly connected with the inner wall of the cavity, and the other end of the connecting rib is fixedly connected with the side wall of the bearing rib.
Optionally, the bearing rib is of a hollow barrel-shaped structure.
Optionally, the connecting rib is provided with a plurality of, and a plurality of the connecting rib all is located between the bearing rib lateral wall with the cavity inner wall.
Optionally, the cavity is internally filled with air.
Optionally, a communication groove is formed in the refractory brick body, and the communication groove is communicated with the cavity.
Optionally, a ventilation heat insulation board is fixedly installed inside the communication groove.
From the above technical solutions, the embodiment of the present utility model has the following advantages:
1. according to the low-heat-conductivity corundum refractory brick, the lightweight reinforcing mechanism is adopted, the weight of the refractory brick body can be reduced by arranging the cavity in the refractory brick body, the heat conductivity of the refractory brick body can be greatly reduced by air in the cavity, the heat conductivity coefficient of the refractory brick body is lower, the weight of the refractory brick body can be reduced and the integral strength of the refractory brick body can be ensured by arranging the bearing ribs and the connecting ribs, so that the corundum refractory brick is more convenient to transport and use.
2. According to the low-heat-conductivity corundum refractory brick, the design of the communication groove is adopted, and the communication groove is formed in the refractory brick body, so that air in the cavity can be discharged through the communication groove when the refractory brick body is heated, the refractory brick body is prevented from being broken due to the fact that the temperature in the refractory brick body is too high, and further the refractory brick body is prevented from being damaged when in use.
These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.
Drawings
The utility model is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
fig. 3 is a partial structural cross-sectional view of the present utility model.
Reference numerals illustrate: 1. a refractory brick body; 2. a communication groove; 3. a cavity; 4. a connecting rib; 5. a bearing rib; 6. a base layer; 7. a heat conducting layer; 8. a protective layer; 9. a thermal insulation layer; 10. and the air-permeable heat insulation plate.
Detailed Description
The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.
The following describes a corundum refractory brick with low heat conductivity according to an embodiment of the present utility model in detail with reference to the accompanying drawings.
Example 1
For easy understanding, referring to fig. 1 to 3, an embodiment of a low heat conduction corundum refractory brick provided by the present utility model includes a refractory brick body 1, the refractory brick body 1 includes a base layer 6, a heat conduction layer 7, a protection layer 8 and a heat insulation layer 9, the base layer 6 is made of corundum, the heat conduction layer 7 is made of corundum, boron nitride and alumina ceramic particles mixed and filled, the protection layer 8 is made of quartz sand, clay, magnesite and dolomite mixed, the heat insulation layer 9 is made of calcium hexaaluminate particles mixed with rare metal oxide micropowder, and a lightweight reinforcing mechanism is arranged inside the refractory brick body 1;
the lightweight strengthening mechanism includes connecting rib 4 and bearing rib 5, and cavity 3 has been seted up to firebrick body 1 inside, and connecting rib 4 one end fixed connection is at cavity 3 inner wall, and connecting rib 4 other end and bearing rib 5 lateral wall fixed connection, cavity 3 inside is full of air.
The weight of the refractory brick body 1 can be reduced by forming the cavity 3 in the refractory brick body 1, and the heat conductivity of the refractory brick body 1 can be greatly reduced by the air in the cavity 3, so that the heat conductivity of the refractory brick body 1 is lower.
In some embodiments, as shown in fig. 2, the bearing rib 5 is of a hollow barrel-shaped structure, the connecting ribs 4 are provided with a plurality of connecting ribs 4, and the plurality of connecting ribs 4 are located between the side wall of the bearing rib 5 and the inner wall of the cavity 3.
It should be noted that, through setting up bearing muscle 5 to hollow barreled structure both can guarantee to support the bearing effect, has the whole weight that can significantly reduce refractory brick body 1, and connecting muscle 4 is provided with six, and two of them are horizontal muscle, and four are oblique muscle in addition, and six connecting muscle 4 distribute between bearing muscle 5 lateral wall and cavity 3 inner wall, can guarantee its bulk strength when refractory brick body 1 reduces weight through setting up connecting muscle 4.
Example 2
In some embodiments, as shown in fig. 2 and 3, a communication groove 2 is formed in the refractory brick body 1, the communication groove 2 is communicated with the cavity 3, a ventilation heat insulation board 10 is fixedly installed in the communication groove 2, and the heat insulation effect of the communication groove 2 is ensured by arranging the ventilation heat insulation board 10.
It should be noted that, through set up intercommunication groove 2 in firebrick body 1 inside can be through the air discharge of intercommunication groove 2 with cavity 3 inside when firebrick body 1 is heated, avoid firebrick body 1 inside high temperature to cause the fracture of firebrick body 1, and then avoided firebrick body 1 to appear damaging when using.
The air-permeable and heat-insulating panel 10 of the present utility model is a well-known component, and will not be described in detail herein.
Working principle: the weight of the refractory brick body 1 can be reduced by arranging the cavity 3 inside the refractory brick body 1, the heat conductivity of the refractory brick body 1 can be greatly reduced by air inside the cavity 3, the heat conductivity of the refractory brick body 1 is lower, the weight of the refractory brick body 1 can be reduced by arranging the bearing ribs 5 and the connecting ribs 4, the integral strength of the refractory brick body 1 can be ensured, the communicating groove 2 can be arranged inside the refractory brick body 1, the air inside the cavity 3 can be discharged through the communicating groove 2 when the refractory brick body 1 is heated, the breakage of the refractory brick body 1 caused by overhigh temperature inside the refractory brick body 1 is avoided, and the damage of the refractory brick body 1 in use is avoided.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (6)
1. A low heat conduction corundum refractory brick is characterized in that: the heat-insulating brick comprises a refractory brick body (1), wherein the refractory brick body (1) comprises a base layer (6), a heat-conducting layer (7), a protective layer (8) and a heat-insulating layer (9), and a lightweight reinforcing mechanism is arranged inside the refractory brick body (1);
the lightweight strengthening mechanism comprises a connecting rib (4) and a bearing rib (5), a cavity (3) is formed in the refractory brick body (1), one end of the connecting rib (4) is fixedly connected with the inner wall of the cavity (3), and the other end of the connecting rib (4) is fixedly connected with the side wall of the bearing rib (5).
2. A low thermal conductivity corundum refractory brick as in claim 1 wherein: the bearing ribs (5) are hollow barrel-shaped structures.
3. A low thermal conductivity corundum refractory brick as in claim 1 wherein: the connecting ribs (4) are arranged in a plurality, and the connecting ribs (4) are all positioned between the side walls of the bearing ribs (5) and the inner walls of the cavities (3).
4. A low thermal conductivity corundum refractory brick as in claim 1 wherein: the cavity (3) is filled with air.
5. A low thermal conductivity corundum refractory brick as in claim 1 wherein: a communication groove (2) is formed in the refractory brick body (1), and the communication groove (2) is communicated with the cavity (3).
6. A low thermal conductivity corundum refractory brick as in claim 5 wherein: and a ventilation heat insulation plate (10) is fixedly arranged in the communication groove (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780724.7U CN219956110U (en) | 2023-04-10 | 2023-04-10 | Corundum refractory brick with low heat conduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320780724.7U CN219956110U (en) | 2023-04-10 | 2023-04-10 | Corundum refractory brick with low heat conduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219956110U true CN219956110U (en) | 2023-11-03 |
Family
ID=88552699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320780724.7U Active CN219956110U (en) | 2023-04-10 | 2023-04-10 | Corundum refractory brick with low heat conduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219956110U (en) |
-
2023
- 2023-04-10 CN CN202320780724.7U patent/CN219956110U/en active Active
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| GR01 | Patent grant |