Self-stress combined hanging brick for heat insulation

Abstract

The utility model relates to the technical field of heat insulation and provides a self-stress combined type hanging brick for heat insulation, aiming at solving the problems in the prior art that the hanging brick is quickly cooled and is inconsistent in internal and external thermal expansion, so that the hanging brick is broken or exploded, the adjacent hanging bricks are easy to expand and extrude, and the hanging brick is also broken and exploded, comprising a plurality of hanging bricks, each hanging brick is provided with a rectangular splicing seat and a trapezoidal body which are integrally formed; the rectangular splicing bases are located on the same horizontal plane and attached to one another. The top surface of the rectangular splicing seat is provided with a top groove, the top groove is located at an included angle between the top surface of the rectangular splicing seat and the large end of the trapezoid body, and the top groove is through along the longitudinal direction of the rectangular splicing seat; a bottom groove is formed in the bottom face of the rectangular splicing base, corresponds to the top groove and is through in the longitudinal direction of the rectangular splicing base. Inwards-concave transverse grooves are formed in the two transverse ends of the rectangular splicing base correspondingly, and the transverse grooves are through in the transverse direction of the rectangular splicing base. The utility model has the beneficial effect that the hanging bricks are prevented from being broken and exploded.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation, in particular to a self-stressed combined hanging brick for heat insulation. Background Art

[0002] Combined hanging bricks are mainly used for heat insulation of kiln head cover and grate cooler shell in cement clinker production.

[0003] The kiln hood and grate cooler are thermal equipment in the cement production process. They operate in a harsh environment of high temperature, high dust and high wind speed. The working temperature is 800-1200 degrees, the dust concentration is about 200g / m3, the clinker particles blown by the fan are as large as 5-10mm, the wind speed is as high as 3-4m / s, and the cooling air of the grate cooler locally blows the material at a speed of more than 5m / s. The shell insulation material is prone to high temperature erosion, cracking and wear.

[0004] At present, there are similar combined hanging bricks on the market, but most of these hanging bricks are made of mullite with good wear resistance, and some are added with some corundum. However, when the mullite material experiences rapid high-temperature changes, the thermal expansion inside and outside is inconsistent, which will produce large thermal stress. This thermal stress produces destructive force from two aspects, causing the hanging bricks to break or explode. On the one hand, the stress generated by the inconsistent expansion between the inside and outside. If the internal expansion is faster than the outside, the hanging bricks will break from the inside to the outside and shatter. The main reason for this problem is that the machine is cooled too quickly before shutdown, causing the outside to shrink due to the cold wind, and the internal high-temperature expansion stress will break and explode. On the other hand, after the hanging bricks are heated, even if the internal and external temperatures change slowly, the expansion and extrusion between the bricks will also cause the bricks to break and explode. Utility Model Content

[0005] The utility model aims to provide a self-stressed combined hanging brick for heat insulation, so as to solve the problems in the prior art that the hanging bricks cool down quickly, the thermal expansion inside and outside is inconsistent, resulting in the hanging bricks breaking or bursting, and the adjacent hanging bricks are prone to expansion and compression, which also causes the hanging bricks to break and burst.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] The embodiment of the utility model provides a self-stressed combined hanging brick for heat insulation, which includes a plurality of hanging bricks;

[0008] Several of the above-mentioned hanging bricks have a rectangular splicing seat, the top surface of the above-mentioned rectangular splicing seat is provided with a trapezoidal body, the large end of the above-mentioned trapezoidal body is perpendicular to the top surface of the above-mentioned rectangular splicing seat, and the above-mentioned trapezoidal body and the above-mentioned rectangular splicing seat are integrally formed with each other;

[0009] The rectangular joints of the plurality of hanging tiles are all located on the same horizontal plane and fit together;

[0010] A top groove is provided on the top surface of the rectangular splicing seat. The top groove is located at the angle between the top surface of the rectangular splicing seat and the large end of the trapezoidal body. The top groove passes through the longitudinal direction of the rectangular splicing seat.

[0011] The bottom surface of the rectangular splicing seat is provided with a bottom groove, the bottom groove corresponds to the top groove, and the bottom groove passes through the longitudinal direction of the rectangular splicing seat;

[0012] Both transverse ends of the rectangular splicing seat are provided with inwardly concave transverse grooves, and the transverse grooves pass through the transverse direction of the rectangular splicing seat.

[0013] When in use, first, several of the above-mentioned hanging bricks are spliced together, and then the above-mentioned trapezoidal body is hung so that the outer side of the above-mentioned rectangular splicing seat is close to the high temperature of the working surface. Finally, a small part of the above-mentioned top groove, the above-mentioned bottom groove and the above-mentioned transverse groove is crushed to absorb the thermal stress, thereby avoiding large-scale breakage and explosion of the hanging bricks, thereby extending the service life of the hanging bricks.

[0014] Optionally: the trapezoidal body has a first side wall and a second side wall parallel to each other, the top ends of the first side wall and the second side wall have a top wall, the first side wall and the second side wall both have vertical edges and inclined edges, there is an inclined surface between the inclined edge of the first side wall and the inclined edge of the second side wall, and there is a vertical surface between the vertical edge of the first side wall and the vertical edge of the second side wall.

[0015] In this way, the shape of the trapezoidal body is jointly defined by the first side wall, the second side wall, the top wall, the vertical surface and the inclined surface, thereby improving the adaptability to temperature changes, reducing the thickness of the hanging bricks themselves, and reducing the volume of the high-temperature sections of several of the hanging bricks, effectively preventing the hanging bricks from breaking from the inside out and shattering when experiencing rapid high-temperature changes.

[0016] Optionally, the inclined surfaces of several hanging tiles are all located on the same side.

[0017] Such arrangement is conducive to corresponding splicing of the top grooves, bottom grooves and transverse grooves of adjacent hanging tiles, thereby improving the overall stress relief capability of the hanging tiles and avoiding crushing of the hanging tiles.

[0018] Optionally, a hanging hole is provided between the inclined surface and the vertical surface of the trapezoidal body, and two ends of the hanging hole pass through the inclined surface and the vertical surface respectively.

[0019] With such arrangement, the hanging holes facilitate the installation personnel to hang up the hanging bricks, and are also conducive to replacing the partially damaged hanging bricks, thereby effectively extending the service life of the self-stress hanging bricks.

[0020] Optionally, an arc-shaped connecting section is provided at the connection between the inclined surface, the vertical surface and the top surface of the rectangular splicing seat.

[0021] With such arrangement, the arc-shaped connecting section makes the intervals between adjacent hanging bricks larger, and at the same time, helps to reduce the volume of the hanging bricks and the volume of the high-temperature section of the hanging bricks close to the working surface, thereby avoiding being broken and exploded due to thermal stress generated by temperature changes.

[0022] Optionally, the top groove includes a first upper groove and a second upper groove, the first upper groove and the second upper groove are parallel to each other, and the first upper groove is opened on the top surface of the rectangular splicing seat and is located at an angle between the bottom end of the first side wall and the top surface of the rectangular splicing seat;

[0023] The second upper groove is formed on the top surface of the rectangular splicing seat and is located at an angle between the bottom end of the second side wall and the top surface of the rectangular splicing seat.

[0024] With such arrangement, the thermal stress extrusion between the adjacent hanging bricks can be absorbed through the first mountain groove and the second upper groove, thereby avoiding large-scale breakage and explosion of the hanging bricks.

[0025] Optionally, the bottom groove has a first lower groove and a second lower groove, and the first lower groove and the second lower groove correspond to the first upper groove and the second upper groove respectively.

[0026] With such arrangement, the thermal stress extrusion between adjacent hanging bricks can be absorbed through the first lower groove and the second lower groove. When extrusion stress is generated between adjacent hanging bricks, a small portion outside the first lower groove and the second lower groove is crushed, thereby protecting the hanging bricks from being exploded and crushed as a whole.

[0027] Optionally, there is a wedge-shaped space between adjacent hanging bricks, and a soft filling material is embedded in the wedge-shaped space.

[0028] In this way, by pouring soft filling material in the above-mentioned wedge-shaped space, a combination state is formed between the hard material of the hanging brick and the soft filling material of the castable, and the amorphous soft filling material is used to fill the gaps between the adjacent fixed-shaped hanging bricks, ensuring sufficient filling and avoiding falling after hardening, forming a combination of steel and softness, thereby avoiding the destructiveness of thermal stress in many aspects.

[0029] In summary, the self-stressed hanging brick for heat insulation disclosed in the present invention has the following beneficial effects:

[0030] 1. Reduce the volume of the rectangular joint seat and trapezoidal body of the hanging brick, avoid the breakage and explosion caused by thermal stress caused by temperature changes, and extend the service life of the hanging brick;

[0031] 2. The top groove, bottom groove and transverse groove are designed in the high-temperature section of the hanging bricks close to the working surface to absorb thermal stress, thus avoiding large-scale breakage and explosion of the hanging bricks, thereby extending the service life of the hanging bricks;

[0032] 3. The wedge-shaped spaces between the hanging bricks are designed as mentioned above, and the gaps between the fixed-shaped hanging bricks are filled with amorphous soft filling materials to ensure sufficient filling and avoid falling after hardening, forming a combination of steel and flexibility, thereby avoiding the destructiveness of thermal stress from many aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a front view of a self-stressed combined hanging brick for heat insulation in an embodiment of the present utility model;

[0035] Figure 2 This is a side view of a self-stressed combined hanging brick for heat insulation in an embodiment of the present utility model;

[0036] Figure 3 This is a front view of the hanging brick in the embodiment of the utility model;

[0037] Figure 4 This is a rear view of the hanging brick in the embodiment of the present utility model;

[0038] Figure 5 This is a left side view of the hanging brick in the embodiment of the utility model;

[0039] Figure 6 It is a right side view of the hanging brick in the embodiment of the present utility model.

[0040] Icons: 1-hanging brick, 2-rectangular splicing seat, 3-trapezoidal body, 4-top groove, 5-bottom groove, 6-horizontal groove, 7-first side wall, 8-second side wall, 9-top wall, 10-vertical edge, 11-inclined edge, 12-inclined surface, 13-vertical surface, 14-hanging hole, 15-arc-shaped connecting section, 16-first upper groove, 17-second upper groove, 18-first lower groove, 19-second lower groove, 20-wedge-shaped space. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0043] Example

[0044] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , this embodiment proposes a self-stressed combined hanging brick for heat insulation, including a plurality of hanging bricks 1;

[0045] Several hanging bricks 1 all have a rectangular splicing seat 2, the top surface of the rectangular splicing seat 2 is provided with a trapezoidal body 3, the large end of the trapezoidal body 3 is perpendicular to the top surface of the rectangular splicing seat 2, and the trapezoidal body 3 and the rectangular splicing seat 2 are integrally formed with each other;

[0046] The rectangular joint seats 2 of the plurality of hanging tiles 1 are all located on the same horizontal plane and fit together;

[0047] The top surface of the rectangular splicing seat 2 is provided with a top groove 4, which is located at the angle between the top surface of the rectangular splicing seat 2 and the large end of the trapezoidal body 3, and the top groove 4 passes through the longitudinal direction of the rectangular splicing seat 2;

[0048] The bottom surface of the rectangular splicing seat 2 is provided with a bottom groove 5, the bottom groove 5 corresponds to the top groove 4, and the bottom groove 5 passes through the rectangular splicing seat 2 in the longitudinal direction;

[0049] Both lateral ends of the rectangular splicing seat 2 are provided with inwardly concave lateral grooves 6 , which pass through the rectangular splicing seat 2 in the lateral direction.

[0050] When in use, first, several hanging bricks 1 are spliced together, then the trapezoidal body 3 is hung so that the outer side of the rectangular splicing seat 2 is close to the high temperature of the working surface, and finally, a small part of the hanging bricks 1 is crushed through the top groove 4, the bottom groove 5 and the transverse groove 6 to absorb the thermal stress, thereby avoiding large-scale breakage and explosion of the hanging bricks 1, thereby extending the service life of the hanging bricks 1.

[0051] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The trapezoidal body 3 has a first side wall 7 and a second side wall 8 parallel to each other, and the top of the first side wall 7 and the second side wall 8 has a top wall 9. The first side wall 7 and the second side wall 8 both have a vertical edge 10 and an inclined edge 11. There is an inclined surface 12 between the inclined edge 11 of the first side wall 7 and the inclined edge 11 of the second side wall 8, and there is a vertical surface 13 between the vertical edge 10 of the first side wall 7 and the vertical edge 10 of the second side wall 8. The shape of the trapezoidal body 3 is jointly defined by the first side wall 7, the second side wall 8, the top wall 9, the vertical surface 13 and the inclined surface 12, which improves the adaptability to temperature changes, reduces the thickness of the hanging brick 1 itself, and reduces the volume of the high-temperature section of several hanging bricks 1, effectively avoiding the hanging brick 1 from breaking from the inside to the outside and breaking when experiencing rapid high-temperature changes.

[0052] The inclined surfaces 12 of several hanging tiles 1 are all located on the same side, which is conducive to the corresponding splicing of the top grooves 4, bottom grooves 5 and transverse grooves 6 of adjacent hanging tiles 1, thereby improving the overall stress elimination ability of several hanging tiles 1 and avoiding several hanging tiles 1 from being crushed.

[0053] A hanging hole 14 is provided between the inclined surface 12 and the vertical surface 13 of the trapezoidal body 3. The two ends of the hanging hole 14 pass through the inclined surface 12 and the vertical surface 13 respectively. The hanging hole 14 makes it convenient for the installer to hang up the hanging brick 1, and is also conducive to replacing partially damaged hanging bricks 1, effectively extending the service life of the self-stressed hanging brick 1.

[0054] There is an arc-shaped connecting section 15 at the connection between the inclined surface 12 and the vertical surface 13 and the top surface of the rectangular splicing seat 2. The arc-shaped connecting section 15 makes the interval between adjacent hanging bricks 1 larger. At the same time, it helps to reduce the volume of the hanging bricks 1 and reduce the volume of the high-temperature section of the hanging bricks 1 close to the working surface, thereby avoiding the thermal stress generated by temperature changes and being broken and exploded.

[0055] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6The top groove 4 has a first upper groove 16 and a second upper groove 17. The first upper groove 16 and the second upper groove 17 are parallel to each other. The first upper groove 16 is opened on the top surface of the rectangular splicing seat 2 and is located at the angle between the bottom end of the first side wall 7 and the top surface of the rectangular splicing seat 2; the second upper groove 17 is opened on the top surface of the rectangular splicing seat 2 and is located at the angle between the bottom end of the second side wall 8 and the top surface of the rectangular splicing seat 2. The first groove and the second upper groove 17 can absorb the thermal stress extrusion between adjacent hanging bricks 1, thereby avoiding large-scale breakage and explosion of the hanging bricks 1.

[0056] The bottom groove 5 has a first lower groove 18 and a second lower groove 19, which correspond to the first upper groove 16 and the second upper groove 17 respectively. The first lower groove 18 and the second lower groove 19 can absorb the thermal stress extrusion between adjacent hanging tiles 1. When extrusion stress is generated between adjacent hanging tiles 1, a small part outside the first lower groove 18 and the second lower groove 19 is crushed, thereby protecting the hanging tiles 1 from being exploded and crushed as a whole.

[0057] There is a wedge-shaped space 20 between adjacent hanging tiles 1, and a soft filling material (not shown in the figure) is embedded in the interior of the wedge-shaped space 20. By pouring the soft filling material into the wedge-shaped space 20, a combination state is formed between the hard material of the hanging tile 1 and the soft filling material of the castable. The amorphous soft filling material is used to fill the gap between the adjacent fixed-shaped hanging tiles 1, ensuring sufficient filling and avoiding falling after hardening, forming a combination of steel and softness, thereby avoiding the destructiveness of thermal stress in many aspects.

[0058] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 In this embodiment, the hanging brick 1 with a larger cross-sectional area is like an alloy drill bit, which is resistant to wear and erosion. The soft filling material of the anti-extrusion castable is worn out first due to its poor wearability. A small part is blocked by the wear-resistant hanging brick 1 to prevent erosion and is protected. The two materials eventually form a union and coexist and die together. The castable fills the wedge-shaped space 20 formed between the hanging bricks 1, which is larger and smaller than the top and bottom, and can be filled more solidly without falling off, thereby extending its service life and preventing high-temperature flue gas from entering the hanging brick 1 and burning the hook to cause the hanging brick 1 to fall off.

[0059] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6In this embodiment, by reducing the volume of the rectangular joint seat 2 and the trapezoidal body 3 of the hanging brick 1, the thermal stress caused by temperature changes can be avoided from causing breakage and explosion, thereby extending the service life of the hanging brick 1.

[0060] In this embodiment, top grooves 4, bottom grooves 5 and transverse grooves 6 are designed in the high-temperature section of the hanging brick 1 close to the working surface to absorb thermal stress, thereby avoiding large-scale breakage and explosion of the hanging brick 1, thereby extending the service life of the hanging brick 1.

[0061] In this embodiment, wedge-shaped spaces 20 are designed between the hanging tiles 1, and amorphous soft filling materials are used to fill the gaps between the shaped hanging tiles 1, ensuring sufficient filling and avoiding falling after hardening, forming a combination of steel and flexibility, thereby avoiding the destructiveness of thermal stress in many aspects.

[0062] In this embodiment, the processing size deviation of the hanging brick 1 is no more than plus or minus 1 mm, and the appearance cannot have any defects, missing edges, gaps, honeycombed surfaces or cracks.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A self-stressed combined hanging brick for thermal insulation, characterized by: comprising a plurality of hanging bricks (1); Several of the hanging tiles (1) have a rectangular splicing seat (2), the top surface of the rectangular splicing seat (2) is provided with a trapezoidal body (3), the large end of the trapezoidal body (3) is perpendicular to the top surface of the rectangular splicing seat (2), and the trapezoidal body (3) and the rectangular splicing seat (2) are integrally formed. The rectangular joint seats (2) of the plurality of hanging tiles (1) are all located on the same horizontal plane and fit together; The top surface of the rectangular splicing seat (2) is provided with a top groove (4), the top groove (4) is located at the angle between the top surface of the rectangular splicing seat (2) and the large end of the trapezoidal body (3), and the top groove (4) is passed through in the longitudinal direction of the rectangular splicing seat (2); The bottom surface of the rectangular splicing seat (2) is provided with a bottom groove (5), the bottom groove (5) corresponds to the top groove (4), and the bottom groove (5) penetrates the longitudinal direction of the rectangular splicing seat (2); Both transverse ends of the rectangular splicing seat (2) are provided with inwardly concave transverse grooves (6), and the transverse grooves (6) pass through the rectangular splicing seat (2) in the transverse direction.

2. The self-stressed combined hanging brick for heat insulation according to claim 1, characterized in that: The trapezoidal body (3) has a first side wall (7) and a second side wall (8) that are parallel to each other, the top ends of the first side wall (7) and the second side wall (8) have a top wall (9), the first side wall (7) and the second side wall (8) both have a vertical edge (10) and an inclined edge (11), an inclined surface (12) is provided between the inclined edge (11) of the first side wall (7) and the inclined edge (11) of the second side wall (8), and a vertical surface (13) is provided between the vertical edge (10) of the first side wall (7) and the vertical edge (10) of the second side wall (8).

3. The self-stressed combined hanging brick for heat insulation according to claim 2, characterized in that: The inclined surfaces (12) of the plurality of hanging tiles (1) are all located on the same side.

4. The self-stressed combined hanging brick for heat insulation according to claim 2, characterized in that: A hanging hole (14) is provided between the inclined surface (12) and the vertical surface (13) of the trapezoidal body (3), and two ends of the hanging hole (14) respectively penetrate the inclined surface (12) and the vertical surface (13).

5. The self-stressed combined hanging brick for heat insulation according to claim 2, characterized in that: An arc-shaped connecting section (15) is provided at the connection between the inclined surface (12), the vertical surface (13) and the top surface of the rectangular splicing seat (2).

6. The self-stressed combined hanging brick for heat insulation according to claim 2, characterized in that: The top groove (4) comprises a first upper groove (16) and a second upper groove (17), the first upper groove (16) and the second upper groove (17) being parallel to each other, the first upper groove (16) being opened on the top surface of the rectangular splicing seat (2) and being located at an angle between the bottom end of the first side wall (7) and the top surface of the rectangular splicing seat (2); The second upper groove (17) is opened on the top surface of the rectangular splicing seat (2) and is located at the angle between the bottom end of the second side wall (8) and the top surface of the rectangular splicing seat (2).

7. The self-stressed combined hanging brick for heat insulation according to claim 6, characterized in that: The bottom groove (5) has a first lower groove (18) and a second lower groove (19), and the first lower groove (18) and the second lower groove (19) correspond to the first upper groove (16) and the second upper groove (17) respectively.

8. The self-stressed combined hanging brick for heat insulation according to claim 1, characterized in that: There is a wedge-shaped space (20) between adjacent hanging bricks (1), and a soft filling material is embedded in the wedge-shaped space (20).

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