Light refractory brick with low thermal conductivity

Abstract

The utility model relates to the technical field of refractory bricks, in particular to a low-heat-conduction light refractory brick, which is characterized in that two adjacent end faces on the periphery of a brick body are provided with convex blocks, the other two end faces are provided with grooves, and the two adjacent brick bodies are quickly clamped through the insertion connection between the convex blocks and the grooves, so that the piling efficiency is higher, and the brick body is more compact. The brick bodies are connected more firmly, the reinforcing frames are arranged in the brick bodies, the whole brick bodies are continuously reinforced and supported through the reinforcing frames, and therefore the anti-pressure capacity of the brick bodies is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of firebrick, especially to a low thermal conductivity light firebrick. BACKGROUND

[0002] Brick is one of the basic building materials, but ordinary bricks are easy to crack at high temperature, and are not suitable for high-temperature areas or high-temperature equipment construction. In this case, traditional bricks are usually replaced by firebricks, which are a special type of brick that can withstand high temperatures and have good heat resistance and compressive strength. Light firebrick generally refers to firebrick with a density less than 1300 kg / m3, which has the characteristics of small density, low thermal conductivity, good thermal insulation, and certain compressive strength.

[0003] In the patent document with publication number CN215766483U, a low thermal conductivity light firebrick is disclosed. The convex block and the groove are set to quickly connect two firebrick bodies, achieving quick installation. The horizontal bar and vertical bar in the cavity are set to improve the overall strength of the firebrick body. The cavity, fireproof layer, reinforcing layer, wear-resistant layer, thermal insulation layer, thermal insulation layer, and corrosion-resistant layer are set to reduce the thermal conductivity of the firebrick body under large temperature differences.

[0004] However, the convex block and the groove in the patent are only set at the upper and lower ends, which can only connect vertically adjacent firebricks, and has no horizontal connection effect, reducing the connection stability. The fireproof layer and the thermal insulation layer are vertically layered, providing good vertical thermal insulation and low thermal conductivity. However, the firebricks are vertically connected, so the side walls only have good thermal insulation in the areas where the thermal insulation layer and the fireproof layer are set, and the rest of the thermal insulation is poor. In addition, although the reinforcing layer is set inside the firebrick cavity, the reinforcing layer is only composed of horizontal bars and vertical bars, which has a low supporting area and reduces the compressive strength of the firebrick.

[0005] Therefore, the utility model provides a low thermal conductivity light firebrick that has good compressive strength and is more secure when connected while ensuring thermal insulation and low thermal conductivity. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the problems in the prior art and provides a low thermal conductivity light firebrick.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a low thermal conductivity light weight firebrick, its characterized in be including brick body, two end faces adjacent around the brick body are equipped with dovetail groove, and the other two adjacent end faces are equipped with the protruding piece matched with dovetail groove, is equipped with the cavity in the brick body, is equipped with the reinforcing frame in the cavity, is equipped with the refractory layer between the outer wall of brick body and inner wall.

[0009] Preferably, the cavity has the same shape as the brick body.

[0010] Preferably, the reinforcing frame has a plurality of reinforcing plates spliced together, each reinforcing plate includes a reinforcing frame attached to the inner wall of the cavity and reinforcing ribs distributed in a mesh pattern within the reinforcing frame.

[0011] Preferably, the brick body has a plurality of cavities, and each cavity has a reinforcing plate.

[0012] Preferably, the brick body has a hollow structure, and a plurality of partitions are fixedly arranged in the brick body to divide the brick body into a plurality of cavities.

[0013] Preferably, the brick body and all the partitions are integrally cast from aerated concrete.

[0014] Preferably, the reinforcing frame is integrally spliced from aluminum-permeated steel.

[0015] Preferably, the protruding piece is in any one of a semicircular shape, an elliptical shape, a rectangular shape, and a triangular shape.

[0016] Compared with the prior art, the utility model provides a low thermal conductivity light weight firebrick, which has the following advantages.

[0017] 1. The utility model discloses a protruding piece on two end faces adjacent around the brick body, and a groove on the other two end faces, which are inserted into each other to quickly connect two adjacent bricks, thereby improving the stacking efficiency and the connection between the bricks.

[0018] 2. The utility model discloses a cavity in the brick body, a refractory layer in the side wall of the brick body, and a reinforcing frame in the cavity, which reinforces and supports the whole brick body, thereby improving the compression resistance of the brick body.

[0019] 3. The brick body is integrally cast and cut from aerated concrete, which forms a plurality of small pores between the side wall and the surface, and the pores form an air layer in the side wall, which cooperates with the plurality of cavities to form a gas flow cavity, thereby greatly improving the heat preservation and insulation effect and achieving the purpose of low thermal conductivity.

[0020] 4. The reinforcing frame is integrally spliced from aluminum-permeated steel, which has good high-temperature resistance and corrosion resistance, and can maintain stable properties at high temperatures and improve the service life of the reinforcing frame.

[0021] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following description of the drawings and the detailed description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a sectional view of the present application.

[0023] Figure 2 is a sectional view of the present application.

[0024] Figure 3 is a sectional view of the present application. Figure 2 is a sectional view of the present application.

[0025] Figure 4 is a sectional view of the present application.

[0026] Figure 5 is a sectional view of the present application.

[0027] Figure 6 is a sectional view of the present application.

[0028] Figure 7 is a sectional view of the present application.

[0029] In the figure: 1, brick; 2, dovetail groove; 3, protrusion; 4, refractory layer; 5, cavity; 6, reinforcing plate; 7, reinforcing rib; 8, partition. DETAILED DESCRIPTION

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the description, serve to explain the principles of the present application. Figures 1-7 The technical solutions in the embodiments of the present application will be apparently and completely described, and apparently, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0031] In order to improve the stability of the lightweight refractory brick, in the present embodiment, a low-thermal-conductivity lightweight refractory brick is provided, which comprises a brick body 1, a cavity 5 is arranged in the brick body 1, the cavity 5 is filled with heat-resistant and heat-insulating material, two adjacent end faces of the brick body 1 are provided with dovetail grooves 2, and the other two adjacent end faces are provided with protrusions 3 matched with the dovetail grooves 2, in use, the protrusions 3 and the dovetail grooves 2 are embedded, so that the brick body 1 and the four brick bodies 1 adjacent thereto are linked more firmly, and thus the entire wall is more stable.

[0032] In the embodiment, the recess and the protrusion 3 do not need to penetrate the front and rear sidewalls of the brick 1, so that the protrusion 3 is limited in the front and rear directions after being inserted into the recess.

[0033] In the embodiment, the recess and the protrusion 3 do not need to penetrate the front and rear sidewalls of the brick 1, so that the protrusion 3 is limited in the front and rear directions after being inserted into the recess.

[0034] In the embodiment, the recess and the protrusion 3 do not need to penetrate the front and rear sidewalls of the brick 1, so that the protrusion 3 is limited in the front and rear directions after being inserted into the recess. Figure 2 , and Figure 3 , and Figure 4 As shown in the drawings, the cavity 5 has the same shape as the brick 1, and the thickness of the sidewall of the brick 1 in the drawings is only a schematic block. The overall shape of the reinforcing frame is attached to the inner wall of the cavity 5.

[0035] The reinforcing frame is composed of a plurality of reinforcing plates 6. The plurality of reinforcing plates 6 are fixed at intervals in the cavity 5, and an auxiliary support plate is arranged between adjacent reinforcing plates 6 to improve the stability between the reinforcing plates 6.

[0036] Each reinforcing plate 6 includes a reinforcing frame attached to the inner wall of the cavity 5 and reinforcing ribs 7 distributed in a mesh shape in the reinforcing frame. The distribution density of the reinforcing ribs 7 is shown in the drawing. Figure 2 The density of the reinforcing ribs 7 at the joint is greater than the density inside the brick 1, and the density of the reinforcing ribs 7 at the two sides of the dovetail groove 2 of the side edge of the brick 1 is the greatest due to the small size, thereby improving the overall strength at this position.

[0037] In the embodiment, the brick 1 is made of aerated concrete, so that a plurality of small pores are formed between the inner part and the surface of the sidewall of the brick 1. The pores form an air layer in the sidewall, and the air layer cooperates with the plurality of cavities 5 to form a gas flow cavity, thereby greatly improving the heat insulation effect and achieving the purpose of low thermal conductivity.

[0038] In the embodiment, the reinforcing frame is entirely spliced by aluminized steel or high-temperature stainless steel, so that the reinforcing frame has good high-temperature resistance and corrosion resistance, and can maintain stable characteristics at high temperature, and the service life of the reinforcing frame is improved. The thermal conductivity of the austenitic stainless steel is low, and the austenitic stainless steel has good low thermal conductivity, and is more suitable for the low thermal conductivity and fire resistance of the brick body 1. Preferably, the surface of the reinforcing frame is sprayed with a low-thermal-conductivity and corrosion-resistant material, and the fire resistance and heat preservation performance of the reinforcing frame are further improved.

[0039] In the embodiment, the reinforcing frame is entirely spliced by aluminized steel or high-temperature stainless steel, so that the reinforcing frame has good high-temperature resistance and corrosion resistance, and can maintain stable characteristics at high temperature, and the service life of the reinforcing frame is improved. The thermal conductivity of the austenitic stainless steel is low, and the austenitic stainless steel has good low thermal conductivity, and is more suitable for the low thermal conductivity and fire resistance of the brick body 1. Preferably, the surface of the reinforcing frame is sprayed with a low-thermal-conductivity and corrosion-resistant material, and the fire resistance and heat preservation performance of the reinforcing frame are further improved.

[0040] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

[0041] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0042] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A lightweight refractory brick with low thermal conductivity, characterized in that, The brick body (1) includes a dovetail groove (2) on the two adjacent ends of the brick body (1) and a protrusion (3) that cooperates with the dovetail groove (2) on the other two adjacent ends. The brick body (1) has a cavity (5) inside, a reinforcing frame inside the cavity (5), and a fire-resistant layer (4) between the outer wall and the inner wall of the brick body (1). The cavity (5) has the same shape as the brick (1); The reinforcing frame is composed of multiple reinforcing plates (6) spliced ​​together. Each reinforcing plate (6) includes a reinforcing frame that fits against the inner wall of the cavity (5) and reinforcing ribs (7) that are distributed in a mesh pattern inside the reinforcing frame. The brick body (1) has multiple cavities (5), and each cavity (5) has a reinforcing plate (6). The brick body (1) is a hollow structure, and multiple partitions (8) are fixed inside the brick body (1) to divide the brick body (1) into multiple cavities (5). The density of reinforcing ribs (7) at the joint of brick body (1) is greater than that inside brick body (1), and the density of reinforcing ribs (7) in the dovetail groove (2) on the side of brick body (1) is the largest.

2. The lightweight refractory brick with low thermal conductivity according to claim 1, characterized in that, The brickwork and all partitions are integrally cast from aerated concrete.

3. The lightweight refractory brick with low thermal conductivity according to claim 1, characterized in that, The entire reinforcing frame is constructed from aluminized steel.

4. The lightweight refractory brick with low thermal conductivity according to claim 1, characterized in that, The protrusion (3) can be any one of the following: semicircle, ellipse, rectangle, or triangle.

Images