Magnesian porous high-heat-insulation anti-deformation refractory brick

Abstract

A brick body supporting frame is composed of four outwards-extending supporting arm plates which are arranged in a crossed mode, every two of the four outwards-extending supporting arm plates are opposite to each other, and every two opposite outwards-extending supporting arm plates are located on the same plane. A brick body outer cover plate is installed between the top ends of every two adjacent outwards-extending supporting arm plates, at least one support supporting plate is inserted into plate bodies of every two adjacent outwards-extending supporting arm plates, and the space defined by the outwards-extending supporting arm plates, the support supporting plates and the brick body outer cover plates is filled with high-heat-insulation filler. And 1-3 bracket supporting plates are inserted between the plate bodies of the two adjacent outwards-extending supporting arm plates. The included angle alpha between every two adjacent outwards-extending supporting arms ranges from 30 degrees to 60 degrees. The high-heat-insulation filling material is aerogel or a magnesium porous material; the brick body supporting frame, the brick body outer cover plate and the support supporting plate are made of corundum or high-aluminum refractory bricks. The deformation-resistant refractory brick has high heat insulation performance, and the brick body has high pressure-bearing compressive strength.

Description

Technical Field

[0001] This utility model relates to a refractory and heat-insulating brick, and more particularly to a composite refractory brick with high thermal insulation and fire resistance and a thermally stable structure. Background Technology

[0002] Refractory bricks are high-temperature materials with excellent refractoriness and corrosion resistance. They are widely used in the construction of kilns, boilers, and high-temperature pipelines in metallurgy, ceramics, power, and chemical industries, making them an indispensable material in the industrial sector. Based on their refractoriness, refractory bricks can be classified into ordinary refractory bricks, high-grade refractory bricks, and extra-high-grade refractory bricks to meet the needs of equipment and furnaces with different high-temperature requirements.

[0003] Aerogels with porous structures, prepared using foaming or sol-gel methods, possess a variety of unique properties. Firstly, aerogels exhibit excellent thermal insulation properties; secondly, they possess outstanding heat resistance; and thirdly, they are very lightweight. Magnesia porous aerogels produced from magnesia ore also make full use of magnesia tailings materials, achieving full utilization of magnesia resources. Although aerogel bricks have excellent thermal insulation properties, their brittleness and low strength limit their application range; there is a need for refractory bricks with excellent fire resistance and thermal insulation properties, as well as high strength. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a magnesia porous high thermal insulation and deformation refractory brick, which not only has high thermal insulation performance, but also has high compressive strength.

[0005] To solve the above-mentioned technical problems, the present invention provides a magnesia porous high thermal insulation and deformation resistant refractory brick, comprising a brick support frame, wherein the brick support frame is composed of four intersecting extended support arm plates, which are opposite each other in pairs and the two opposite extended support arm plates are on the same plane; an outer cover plate of the brick body is installed between the top ends of two adjacent extended support arm plates, and at least one bracket plate is inserted into the plate body of two adjacent extended support arm plates; the space enclosed by the extended support arm plates, the bracket plate, and the outer cover plate of the brick body is filled with a high thermal insulation filler.

[0006] In the technical solution of this utility model, the space enclosed by the extended support arm plate, the support plate, and the outer cover plate of the brick support frame is filled with a highly insulating material. Utilizing the low thermal conductivity, high porosity, and excellent thermal insulation properties of this material, the refractory bricks achieve outstanding heat resistance. This makes the refractory bricks with high thermal insulation properties more suitable for high-insulation and high-compression applications, and better able to meet the high-temperature and high-load requirements of various kilns, boilers, and high-temperature pipelines, greatly expanding the application range of highly insulating materials. Furthermore, the four extended support arms of the brick support frame form a forked support skeleton, and the outer cover plate and support plate of the brick support frame support the top and body of the extended support arm plate, thus forming a stable support structure that gives the refractory bricks high rigidity and compressive strength. The combined structure of this utility model, with its fork-shaped support frame plate and outer cover plate, enables the refractory bricks to have sufficient resistance and bearing capacity to external forces, thereby improving the compressive strength of the refractory bricks. Meanwhile, the high-insulation refractory material gives the refractory bricks excellent thermal insulation performance.

[0007] In a further embodiment of this utility model, the top two sides of the extended support arm plate are respectively provided with horizontal cover plate slots and vertical cover plate slots. The two ends of the outer cover plate of the brick are respectively installed on the extended support arm plate through the corresponding horizontal or vertical cover plate slots. The two sides of the support arm plate are respectively provided with horizontal support plate slots and vertical support plate slots. The two ends of the bracket support plate are respectively installed on the extended support arm plate through the corresponding horizontal and vertical support plate slots. One to three bracket support plates are inserted between the plates of two adjacent extended support arm plates. This constitutes a structurally stable refractory brick support frame with high compressive strength.

[0008] In a further embodiment of this utility model, the brick support frame, the outer cover plate of the brick body, and the support plate are of equal length, and brick end plates are installed at both ends of the brick support frame, the outer cover plate of the brick body, and the support plate along their length. This allows the high-insulation filler to be sealed and filled into the brick cavity.

[0009] In a further embodiment of this invention, the included angle α between two adjacent extended support arms is 30°–60°. Preferably, the included angle α between two adjacent extended support arms is 45°, which facilitates the formation of bricks of different shapes and sizes.

[0010] In a further embodiment of this invention, the high-insulation filler is aerogel or magnesia porous material; the brick support frame, the outer cover plate of the brick body, and the support plate are clay refractory bricks, corundum refractory bricks, or high-alumina refractory bricks. This provides the dual advantages of high insulation and high strength. Attached Figure Description

[0011] The present invention, a magnesia porous high thermal insulation and deformation resistant refractory brick, will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a cross-sectional structural diagram of a specific embodiment of the magnesia porous high thermal insulation and deformation resistant refractory brick of this utility model;

[0013] Figure 2 yes Figure 1 Cross-sectional structural diagram of the brick support frame;

[0014] Figure 3 yes Figure 2 Top view;

[0015] Figure 4 yes Figure 1 Cross-sectional structural diagram of the outer cover plate of the brickwork;

[0016] Figure 5 yes Figure 4 Top view;

[0017] Figure 6 yes Figure 1 Cross-sectional structural diagram of the support plate of the middle bracket;

[0018] Figure 7 yes Figure 6 Top view.

[0019] In the figure, 1—brick support frame, 11—horizontal cover plate slot, 12—vertical cover plate slot, 13—horizontal support plate slot, 14—vertical support plate slot, 15—outer support arm, 2—outer cover plate of brick body, 3—high insulation filler, 4—support plate. Detailed Implementation

[0020] like Figure 1 The illustrated magnesia porous high-insulation and deformation-resistant refractory brick employs a combined structure of a supporting framework and filler. The supporting framework includes a brick support frame 1, an outer cover plate 2, and a support plate 4. These components are bricks or slabs made from high-alumina refractory materials; alternatively, they can be made from clay, corundum, or other refractory materials. The filler is an aerogel insulation material, which can be inorganic, organic, or a composite aerogel. Alternatively, magnesia porous aerogel can be used, prepared from magnesia ore using a foaming or sol-gel method to create a magnesia porous material.

[0021] The brick support frame 1 is a cross-shaped plate frame. The four outward-extending support arm plates 15 of the brick support frame 1 are four intersecting outward-extending wing-like structures. The outward extension lengths of the four outward-extending support arm plates 15 are equal and they are opposite each other in pairs, with the two opposite outward-extending support arm plates 15 lying on the same plane. A brick outer cover plate 2 is installed between the tops of each adjacent pair of outward-extending support arm plates 15. Four brick outer cover plates 2 are installed around the outward-extending ends of the brick support frame 1. The width and thickness of the brick support frame 1, the brick outer cover plates 2, and the support plate 4 are equal. Figure 1 The refractory brick has a square cross-section. The brick support frame 1, the outer cover plate 2, and the support plate 4 are all of equal length. The four outer cover plates 2, the support plates 4, and the two ends of the fork-shaped brick support frame 1 are bonded or embedded with brick end plates (not shown in the figure). These brick end plates and the four outer cover plates 2 form a hexahedron. A support plate 4 is also installed in the middle of each of the two adjacent extended support arm plates 15 of the brick support frame 1. The brick support frame 1, the four outer cover plates 2, and the four support plates 4 constitute a structurally stable frame structure. The space enclosed by the extended support arm plates 15, the support plates 4, and the outer cover plates 2 is filled with a highly insulating filler 3.

[0022] like Figure 2 , Figure 3 As shown, the brick support frame 1 consists of four equal-length extended support arm plates 15, which are arranged in pairs facing each other, with a cross-shaped cross section. A horizontal cover plate slot 11 and a vertical cover plate slot 12 are respectively provided on both sides of the top of each extended support arm plate 15. The two ends of the same brick outer cover plate 2 are respectively inserted into the horizontal cover plate slot 11 and the vertical cover plate slot 12 at the top of two adjacent extended support arm plates 15. A horizontal support plate slot 13 and a vertical support plate slot 14 are respectively provided on both sides of the middle section of each extended support arm plate 15. The two ends of the support plate 4 are respectively inserted into the opposite horizontal support plate slot 13 or vertical support plate slot 14 on two adjacent extended support arm plates 15. The slots on both sides of the same extended support arm 15 are staggered.

[0023] like Figure 4 , Figure 5 As shown, the outer cover plate 2 of the brickwork is a rectangular plate structure, with parallel tenons on both sides. (See diagram) Figure 6 , Figure 7 The support plate 4 shown is also a rectangular plate structure.

[0024] The above examples illustrate some preferred embodiments of this utility model. However, this utility model is not limited to these embodiments, and many variations or improvements can be made. For instance, the extended support arm 15 of the brick support frame 1 is not limited to having only one support plate 4; two or three support plates 4, or even more, can be inserted. It should also be noted that the terms "horizontal" or "vertical" in this utility model are merely for ease of description and not intended to limit the orientation. All improvements and variations based on the basic principles of this utility model fall within the protection scope of this utility model.

Claims

1. A magnesia porous high thermal insulation and deformation resistant refractory brick, characterized in that: The system includes a brick support frame (1), which is composed of four intersecting extended support arm plates (15). The four extended support arm plates (15) are opposite each other in pairs, and the two opposite extended support arm plates (15) are on the same plane. A brick outer cover plate (2) is installed between the tops of two adjacent extended support arm plates (15). At least one bracket support plate (4) is also inserted into the plate body of two adjacent extended support arm plates (15). The space enclosed by the extended support arm plates (15), the bracket support plate (4) and the brick outer cover plate (2) is filled with high heat insulation filler (3).

2. The magnesia porous high thermal insulation and deformation resistant refractory brick according to claim 1, characterized in that: The top two sides of the extended support arm plate (15) are respectively provided with a horizontal cover plate slot (11) and a vertical cover plate slot (12). The two ends of the brick outer cover plate (2) are respectively installed on the extended support arm plate (15) through the corresponding horizontal cover plate slot (11) or vertical cover plate slot (12).

3. The magnesia porous high thermal insulation and deformation-resistant refractory brick according to claim 1, characterized in that: The extended support arm plate (15) has a horizontal support plate slot (13) and a vertical support plate slot (14) on both sides of the plate body. The two ends of the bracket support plate (4) are installed on the extended support arm plate (15) through the corresponding horizontal support plate slot (13) and vertical support plate slot (14).

4. The magnesia porous high thermal insulation and deformation-resistant refractory brick according to claim 1, 2 or 3, characterized in that: One to three bracket plates (4) are inserted between the plates of two adjacent extended support arm plates (15).

5. The magnesia porous high thermal insulation and deformation-resistant refractory brick according to claim 1, characterized in that: The brick support frame (1), the outer cover plate (2) of the brick body and the support plate (4) are of equal length, and brick end plates are installed at both ends of the brick support frame (1), the outer cover plate (2) of the brick body and the support plate (4) along their length.

6. The magnesia porous high thermal insulation and deformation-resistant refractory brick according to claim 1, characterized in that: The included angle α between two adjacent extended support arm plates (15) is 30°–60°.

7. The magnesia porous high thermal insulation and deformation-resistant refractory brick according to claim 6, characterized in that: The included angle α between two adjacent extended support arm plates (15) is 45°.

8. The magnesia porous high thermal insulation and deformation resistant refractory brick according to claim 1, characterized in that: The high thermal insulation filler (3) is aerogel or magnesium porous material; the brick support frame (1), the outer cover plate (2) of the brick body and the support plate (4) are clay refractory bricks, corundum refractory bricks or high alumina refractory bricks.

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