A new type of high-alumina brick convenient to install
By setting protrusions, grooves, and snap-fit structures on the high-alumina brick body, the problem of inconvenient installation of traditional high-alumina bricks is solved, realizing convenient installation of high-alumina bricks and improving the structural stability of furnaces and kilns.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU ZHONGKEDA REFRACTORY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-19
Smart Images

Figure CN224382127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-alumina brick technology, and in particular to a new type of high-alumina brick that is easy to install. Background Technology
[0002] High-alumina bricks, as an important refractory material, are widely used in the construction of high-temperature industrial furnaces and kilns. Their main component is alumina (…). High-alumina bricks, typically containing over 48% alumina, possess excellent refractoriness, resistance to chemical corrosion, and mechanical strength. They can withstand various complex operating conditions under high-temperature environments, effectively protecting the furnace structure and extending its service life. Existing high-alumina bricks are mainly used for lining blast furnaces, hot blast stoves, electric furnace roofs, blast furnaces, reverberatory furnaces, and rotary kilns. In addition, high-alumina bricks are widely used as checker bricks in open-hearth regenerators, stoppers in casting systems, and nozzle bricks.
[0003] However, there are often many inconveniences in the traditional installation process of high-alumina bricks. First, the shape and size of high-alumina bricks are relatively fixed, usually standard rectangles or squares. This means that workers need to use refractory mortar and other adhesives to fix the bricks based on their experience during construction. Due to the instability of manual operation, uneven gaps are likely to occur, affecting the sealing of the furnace and the overall structural stability.
[0004] With the continuous development of industrial furnace technology and the increasing demands for construction efficiency and quality, traditional high-alumina brick installation methods are no longer sufficient to meet the needs of modern industrial production. Therefore, there is an urgent need for a high-alumina brick that is easy to install, simplifies the installation process, improves installation efficiency, reduces construction difficulty and cost while ensuring refractory performance, and simultaneously ensures the structural stability and sealing of the furnace, thus better adapting to the masonry requirements of various industrial furnaces. Utility Model Content
[0005] The purpose of this invention is to provide a new type of high-alumina brick that is easy to install, solving the problem that the shape and size of high-alumina bricks are relatively fixed, usually in the form of standard rectangles or squares. This means that during construction, workers need to use refractory mortar and other adhesives to fix the bricks based on their experience. Due to the instability of manual operation, uneven gaps are likely to occur, affecting the sealing of the furnace and the overall structural stability.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] This utility model discloses a novel high-alumina brick that is easy to install, comprising a high-alumina brick body, wherein the top and bottom surfaces of the high-alumina brick body are provided with protrusions and grooves, a slot is provided on the left side of the high-alumina brick body, a corresponding locking block is provided on the right side of the high-alumina brick body, a first locking structure is provided on the front side of the high-alumina brick body, and a second locking structure is provided on the rear side of the high-alumina brick body.
[0008] Furthermore, both the first slot and the first block have a U-shaped cross-section.
[0009] Furthermore, the first snap-fit structure includes a second snap-fit block and a third snap-fit slot.
[0010] Furthermore, the cross-sections of both the second card block and the third card slot are T-shaped.
[0011] Furthermore, the second snap-fit structure includes a second snap-fit slot and a third snap-fit block.
[0012] Furthermore, the cross-sections of both the second card slot and the third card block are T-shaped.
[0013] Furthermore, the high-alumina brick body is provided with several through holes.
[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0015] When installing high-alumina bricks horizontally, the first and second interlocking structures of this utility model provide positioning connection between two adjacent high-alumina bricks at the front and rear. Two adjacent high-alumina bricks at the left and right are positioned by interlocking grooves and interlocking blocks. Two adjacent high-alumina bricks at the top and bottom are positioned by the cooperation of protrusions and grooves. This makes installation convenient, and the gaps between adjacent high-alumina bricks are uniform, improving installation quality, enhancing the structural stability and sealing of the furnace, and better adapting to the masonry requirements of various industrial furnaces. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;
[0018] Figure 2 This is a front view of Embodiment 1 of the present utility model;
[0019] Figure 3 This is a top view of four high-alumina bricks horizontally installed together in Embodiment 1 of this utility model;
[0020] Figure 4 This is a front view of four high-alumina bricks installed together in two layers, as described in Embodiment 1 of this utility model.
[0021] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;
[0022] Figure 6 This is a top view of four high-alumina bricks horizontally installed together in Embodiment 2 of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. High-alumina brick body; 2. Protrusion; 3. Groove; 4. Slot 1; 5. Block 1; 6. Slot 2; 7. Block 2; 8. Slot 3; 9. Block 3; 10. Through hole. Detailed Implementation
[0024] Example 1
[0025] like Figure 1-2 As shown, a novel high-alumina brick that is easy to install includes a high-alumina brick body 1. The top and bottom left halves of the high-alumina brick body 1 are connected to four cylindrical protrusions 2, and the top and bottom right halves of the high-alumina brick body 1 are connected to four cylindrical grooves 3. The protrusions 2 match the grooves 3 of adjacent high-alumina bricks. A slot 4 is provided on the left side of the high-alumina brick body 1, and a corresponding locking block 5 is connected to the right side of the high-alumina brick body 1. The slot 4 and the locking block 5 are both U-shaped in cross-section. A first locking structure is provided on the front side of the high-alumina brick body 1, and a second locking structure is provided on the rear side of the high-alumina brick body 1.
[0026] Specifically, the first snap-fit structure includes a second snap-fit block 7 and a third snap-fit slot 8, both of which have a T-shaped cross-section.
[0027] The second snap-fit structure includes a second snap-fit slot 6 and a third snap-fit block 9, both of which have a T-shaped cross-section. In this embodiment, the second snap-fit slot 6 is located on the opposite side of the second snap-fit block 7, and the third snap-fit block 9 is located on the opposite side of the third snap-fit slot 8.
[0028] like Figure 3 The image shows a top view of four high-alumina bricks installed horizontally together. T-shaped clips are installed within T-shaped slots, allowing two high-alumina bricks to separate along the front-to-back direction. Figure 4 The image shows a front view of four high-alumina bricks installed together in two layers, one above the other.
[0029] Example 2
[0030] like Figure 5As shown, this embodiment, based on Embodiment 1, has multiple through holes 10 on the high-alumina brick body 1. Specifically, one through hole 10 is formed between four protrusions 2, one through hole 10 is formed between four grooves 3, and three through holes 10 are formed between the protrusions 2 and the grooves 3. This can be used in a hot blast stove. The through holes 10 are through-holes parallel to the side surface, mainly used in the heat storage chamber structure of the hot blast stove. During combustion, high-temperature flue gas passes through the holes, transferring heat to the checker bricks; during the blast period, cold air enters the hot blast stove, is heated into hot air by the checker bricks, and is then sent to the blast furnace.
[0031] like Figure 6 The image shown is a top view of four high-alumina bricks installed horizontally together.
[0032] Example 3
[0033] Based on Embodiment 1, this embodiment adjusts the positions of Card Slot 2 6, Card Block 2 7, Card Slot 3 8, and Card Block 3 9. Card Slot 2 6 is located on the opposite side of Card Slot 3 8, and Card Block 2 7 is located on the opposite side of Card Block 3 9.
[0034] In other embodiments, the cross-sectional shapes of slot 2 6, slot 2 7, slot 3 8, and slot 3 9 have been adjusted. The cross-sections can be set as dovetail-shaped, body-shaped grooves, sawtooth-shaped grooves, etc.; the cross-sections of slot 1 4 and slot 1 5 can also be set as dovetail-shaped, body-shaped grooves, sawtooth-shaped grooves, etc.
[0035] Furthermore, the positions of the protrusions 2 and grooves 3 can be adjusted, and they do not have to be distributed in a rectangular direction as shown in Embodiment 1. The protrusions 2 and grooves 3 can be arranged at intervals, or they can be distributed in a circular, triangular, or other forms. In Embodiment 1, the protrusions 2 and grooves 3 on the top and bottom surfaces of the high-alumina brick body 1 are arranged in the same way, but the protrusions 2 and grooves 3 on the top and bottom surfaces of the high-alumina brick body 1 can also be distributed in different ways.
[0036] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A new type of high alumina brick which is easy to install, characterized in that: The high-alumina brick body (1) is provided with protrusions (2) and grooves (3) on its top and bottom surfaces. A slot (4) is provided on the left side of the high-alumina brick body (1). A block (5) corresponding to the slot (4) is provided on the right side of the high-alumina brick body (1). A first snap-fit structure is provided on the front side of the high-alumina brick body (1). A second snap-fit structure is provided on the rear side of the high-alumina brick body (1).
2. The new generation high alumina brick for easy installation as claimed in claim 1 wherein: Both the slot (4) and the block (5) have U-shaped cross sections.
3. The new generation of high alumina bricks for easy installation as claimed in claim 1, wherein: The first snap-fit structure includes a second snap-fit block (7) and a third snap-fit slot (8).
4. The new generation high alumina brick for easy installation as claimed in claim 3 wherein: The cross-sections of both the second card block (7) and the third card slot (8) are T-shaped.
5. The new generation of high alumina brick for easy installation as claimed in claim 1, wherein: The second snap-fit structure includes a second snap-fit slot (6) and a third snap-fit block (9).
6. The novel high-alumina brick with easy installation according to claim 5, characterized in that: The cross-sections of the second slot (6) and the third block (9) are both T-shaped.
7. The new generation high alumina brick for easy installation as claimed in claim 1 wherein: The high-alumina brick body (1) is provided with several through holes (10).