Heat transfer and wear-resistant device for bottom protective tiles of suspended screen

Abstract

This utility model discloses a heat transfer and wear-resistant device for the bottom protective tile of a suspended screen, belonging to the field of CFB boiler suspended screen protection technology. The device includes multiple tiles disposed below the bottom of the suspended screen and multiple mounting brackets for mounting the tiles. The tiles cover the bottom of the suspended screen. The mounting brackets are fastened together by multiple connecting rods, the trajectory of which is the same as the trajectory of the suspended screen. This utility model strengthens the protection of the bottom of the suspended screen by installing multiple protective tiles. The wear resistance is improved by increasing the thickness of the tiles in the middle. Two connecting plates are provided at one end of each tile, allowing adjacent tiles to be inserted between the two connecting plates, thus increasing the support strength between the tiles.

Description

Technical Field

[0001] This utility model relates to the field of CFB boiler hanging screen protection technology, and in particular to a heat transfer and wear-resistant device for the bottom protective tile of the hanging screen. Background Technology

[0002] Wear and tear on the water-cooled walls and hanging screens of CFB boilers has always been a problem for thermal power plants, especially the wear and tear on the hanging screens. Various anti-wear methods on the market are difficult to solve the problem. The two outermost tubes of the hanging screen are the most difficult to protect. However, these two tubes are exposed to the furnace for a long time and are subjected to impacts and scouring from materials of different directions, speeds and concentrations, which can easily cause tube rupture and affect the safe operation of the boiler.

[0003] In actual use, high-speed flowing material particles constantly wash over the hanging screen, causing wear and tear, with the outermost screen suffering the most severe wear. Existing protective devices cannot provide targeted protection for the most severely damaged screen, resulting in the outermost screen being damaged too quickly. Therefore, this application proposes a wear-resistant device to protect the outermost screen. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a heat transfer and wear-resistant device for the bottom protective tile of a hanging screen.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The heat transfer and wear-resistant device for the bottom protective tile of the suspended screen includes multiple tiles disposed below the bottommost suspended screen and multiple mounting brackets for mounting the tiles respectively. The tiles are used to cover the bottom of the suspended screen, and the multiple mounting brackets are fastened together by multiple connecting rods, the trajectory of which is the same as that of the suspended screen.

[0006] In some embodiments, the tile is semi-circular, and the thickness of the middle part of the tile is greater than the thickness of the sides.

[0007] In some embodiments, the plurality of tiles are connected by two connecting plates, the connecting plates being quarter-circle arcs, and the two tiles are fixed diagonally at one end of the tile.

[0008] In some embodiments, the mounting bracket includes an arc-shaped hanging ring and two side plates disposed at both ends of the hanging ring. Each end of the hanging ring is fixed with a stud, and the top of the side plate is provided with a through hole sleeved on the surface of the stud.

[0009] In some embodiments, a hook plate is fixed to the lower end of the side plate, the lower end of the hook plate is inverted T-shaped, and two sets of hooks are symmetrically fixed to the inner wall of the tile, the hooks cooperating with the hook plate.

[0010] In some embodiments, the side plate surface has two grooves for mounting connecting rods, and the side plate surface is provided with limiting components for fixing the connecting rods inside the grooves.

[0011] In some embodiments, the limiting assembly includes a limiting ring that rotates on the surface of the side plate and a one-way rack that is fixed to the surface of the side plate. The one-way rack is arc-shaped, and the lower end of the limiting ring has a helical tooth that slides toward the side of the one-way rack. The one-way rack and the helical tooth are used to make the limiting ring rotate unidirectionally toward the inside of the groove.

[0012] In some embodiments, a concrete layer is filled between the inner walls of the plurality of tiles and the hanging screen.

[0013] Compared with the prior art, this utility model provides a heat transfer and wear-resistant device for the bottom protective tile of the hanging screen, which has the following beneficial effects.

[0014] 1. This utility model strengthens the protection of the bottom of the hanging screen by installing multiple protective tiles at the bottom; it improves the wear resistance by increasing the thickness of the middle part of the tiles; and it improves the support strength between the tiles by setting two connecting plates at one end of the tiles so that adjacent tiles can be inserted between the two connecting plates.

[0015] 2. This utility model enables quick installation of tiles by setting up an installation frame. By making the hanging ring and the two side plates separate, it is easy to hang the installation frame on the central screen surface. By setting up multiple connecting rods, multiple installation frames are connected laterally, thereby improving the stability of the installation frame.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the orthogonal axial structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the lateral axial structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the tile in this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting bracket in this utility model.

[0021] Figure 5 This is a schematic diagram of the connection structure between the mounting bracket and the tile in this utility model.

[0022] Figure 6 This is a schematic diagram of the limiting component in this utility model.

[0023] In the picture: 1. Hanging screen; 2. Tile; 201. Connecting plate; 3. Mounting bracket; 301. Hanging ring; 302. Side plate; 303. Stud; 304. Hook plate; 305. Hook; 4. Connecting rod; 401. Groove; 402. Limiting component; 4021. Limiting ring; 4022. One-way rack; 4023. Helical tooth; 5. Concrete layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen includes multiple tiles 2 set below the bottom hanging screen 1 and multiple mounting brackets 3 for installing the tiles 2 respectively. The tiles 2 are used to cover the bottom of the hanging screen 1, and the multiple mounting brackets 3 are fastened together by multiple connecting rods 4. Tile 2 is semi-circular, and the thickness of the middle part of tile 2 is greater than the thickness of the sides. Multiple tiles 2 are connected by two connecting plates 201. The connecting plate 201 is a quarter-circle arc. Two tiles 2 are fixed diagonally at one end of tile 2. One connecting plate 201 is located on the inner circle of tile 2, and the other tile 2 is located on the outer circle of tile 2. The tile 2 located at the bend of the hanging screen 1 matches the curvature of the hanging screen 1.

[0026] It is understandable that by installing multiple protective tiles 2 at the bottom of the hanging screen 1, the bottom of the hanging screen 1 is reinforced for protection; by increasing the thickness of the middle part of the tile 2, the wear resistance is improved; by setting two connecting plates 201 at one end of the tile 2, adjacent tiles 2 are inserted between the two connecting plates 201, thereby improving the support strength between the tiles 2; by setting the connecting plates 201 as a quarter-circle arc and setting them diagonally, the tile 2 can rotate between the two connecting plates 201 when it is installed on the mounting frame 3, making it easy to hang the tile 2 on the surface of the mounting frame 3.

[0027] Specifically, the mounting bracket 3 includes an arc-shaped hanging ring 301 and two side plates 302 set at both ends of the hanging ring 301. The inner diameter of the arc-shaped hanging ring 301 is the same as the diameter of the hanging screen 1. The two ends of the hanging ring 301 are respectively fixed with studs 303. The top of the side plate 302 is provided with a through hole that fits on the surface of the stud 303. The lower end of the side plate 302 is fixed with a hook plate 304. The lower end of the hook plate 304 is inverted T-shaped. Two sets of hooks 305 are symmetrically fixed on the inner wall of the tile 2. The hooks 305 cooperate with the hook plates 304.

[0028] It is understandable that by setting the hanging ring 301 and the two side plates 302 as separate units, it is convenient to hang the mounting bracket 3 on the surface of the central hanging screen 1; by placing the hanging ring 301 on the surface of the central hanging screen 1, and then, by fitting the two side plates 302 onto the surfaces of the two studs 303 through the two through holes respectively, and by fastening the two side plates 302 with nuts; by setting the hook plate 304 and the hook 305, after the mounting bracket 3 is placed on the hanging screen 1, the hook 305 is hung on the bottom of the hook plate 304 to install the tile 2; by rotating the side plates 302 through the studs 303, the two hook plates 304 are brought closer to each other, making it convenient to hang the hook 305 on the surfaces of the two hook plates 304.

[0029] Specifically, the side plate 302 has two grooves 401 for mounting the connecting rod 4. The trajectory of the connecting rod 4 is the same as that of the hanging screen 1. The side plate 302 is provided with a limiting component 402 for fixing the connecting rod 4 inside the groove 401.

[0030] It is understandable that by setting multiple connecting rods 4, multiple mounting brackets 3 can be connected laterally, thereby improving the stability of the mounting brackets 3. By setting grooves 401 and limiting components 402, it is easy to fix the connecting rods 4, and quickly fix multiple mounting brackets 3 into a whole.

[0031] Specifically, the limiting component 402 includes a limiting ring 4021 that rotates on the surface of the side plate 302 and a one-way rack 4022 that is fixed on the surface of the side plate 302. The one-way rack 4022 is arc-shaped and has the same rotation trajectory as the limiting ring 4021. The lower end of the limiting ring 4021 has a helical tooth 4023 that slides towards the one-way rack 4022. The limiting ring 4021 is provided with a spring inside for pushing the helical tooth 4023 to abut against the surface of the one-way rack 4022. The one-way rack 4022 and the helical tooth 4023 are used to make the limiting ring 4021 rotate unidirectionally towards the inside of the groove 401.

[0032] Understandably, after the connecting rod 4 is placed inside the groove 401, the limiting ring 4021 is pushed to rotate, so that the limiting ring 4021 and the groove 401 cooperate to clamp and fix the connecting rod 4, thereby quickly fixing the connecting rod 4. The cooperation between the helical tooth 4023 and the one-way rack 4022 can prevent the limiting ring 4021 from loosening.

[0033] Specifically, a concrete layer 5 is filled between the inner walls of multiple tiles 2 and the hanging screen 1.

[0034] It is understandable that by setting up the concrete layer 5, the gap between the tile 2 and the hanging screen 1 is filled, thereby further improving the protective effect on the bottom of the hanging screen 1.

[0035] In this invention, the hanging ring 301 is placed on the surface of the centrally located hanging screen 1. Then, the two side plates 302 are respectively fitted onto the surfaces of the two studs 303 through the two through holes. Next, the hooks 305 are hung on the bottom of the hook plates 304 to install the tile 2. The side plates 302 are rotated via the studs 303, causing the two hook plates 304 to move closer together, facilitating the hanging of the hooks 305 onto their surfaces. The two side plates 302 are then secured to the hanging ring 301 with nuts. This process is repeated sequentially. Multiple mounting brackets 3 and tiles 2 are installed, and adjacent tiles 2 are inserted between two connecting plates 201 to improve the support strength between tiles 2. Then, multiple connecting rods 4 are placed in grooves 401, and the limiting ring 4021 is pushed to rotate, so that the limiting ring 4021 and the groove 401 cooperate to clamp and fix the connecting rods 4, quickly fixing the connecting rods 4 and quickly fixing multiple mounting brackets 3 into a whole. Finally, a concrete layer 5 is filled between the tiles 2 and the hanging screen 1 to further improve the protection effect on the bottom of the hanging screen 1.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples; although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat transfer and wear-resistant device for the bottom protective tile of a suspended screen, characterized in that, It includes multiple tiles (2) set below the bottom hanging screen (1) and multiple mounting brackets (3) for installing the tiles (2) respectively. The tiles (2) are used to cover the bottom of the hanging screen (1). The multiple mounting brackets (3) are fastened together by multiple connecting rods (4). The trajectory of the connecting rods (4) is the same as that of the hanging screen (1).

2. The heat transfer and wear-resistant device for the bottom protective tile of the suspended screen according to claim 1, characterized in that, The tile (2) is semi-circular, and the thickness of the middle part of the tile (2) is greater than the thickness of the two sides.

3. The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen according to claim 1, characterized in that, Multiple tiles (2) are connected by two connecting plates (201), which are quarter-circle arcs. Both tiles (2) are fixed diagonally at one end of the tile (2).

4. The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen according to claim 1, characterized in that, The mounting bracket (3) includes an arc-shaped hanging ring (301) and two side plates (302) set at both ends of the hanging ring (301). The two ends of the hanging ring (301) are respectively fixed with studs (303), and the top of the side plate (302) is provided with a through hole sleeved on the surface of the stud (303).

5. The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen according to claim 4, characterized in that, The lower end of the side plate (302) is fixed with a hook plate (304), the lower end of the hook plate (304) is inverted T-shaped, and two sets of hooks (305) are symmetrically fixed on the inner wall of the tile (2), the hooks (305) cooperate with the hook plate (304).

6. The heat transfer and wear-resistant device for the bottom protective tile of the suspended screen according to claim 4, characterized in that, The side plate (302) has two grooves (401) for mounting the connecting rod (4) on its surface, and the side plate (302) is provided with a limiting component (402) for fixing the connecting rod (4) inside the groove (401).

7. The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen according to claim 6, characterized in that, The limiting component (402) includes a limiting ring (4021) that rotates on the surface of the side plate (302) and a one-way rack (4022) fixed on the surface of the side plate (302). The one-way rack (4022) is arc-shaped. The lower end of the limiting ring (4021) has a helical tooth (4023) that slides toward the side of the one-way rack (4022). The one-way rack (4022) and the helical tooth (4023) are used to make the limiting ring (4021) rotate unidirectionally toward the inside of the groove (401).

8. The heat transfer and wear-resistant device for the bottom protective tile of the hanging screen according to claim 1, characterized in that, A concrete layer (5) is filled between the inner wall of the multiple tiles (2) and the hanging screen (1).

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