Heat-resistant anti-abrasion tile for fluidized bed boiler

Abstract

The utility model discloses a heat-resistant wear-resistant tile for a fluidized bed boiler, which comprises a wear-resistant tile body, a plurality of flow guide grooves are arranged on the surface of the wear-resistant tile body, the flow guide grooves are integrally formed by punching the wear-resistant tile body, a heat conduction strip is formed on one side of the wear-resistant tile body by the flow guide grooves, and a heat-resistant plate is fixedly connected to the inner side of the wear-resistant tile body. The side, close to the anti-abrasion tile body, of the heat-resisting plate is provided with a groove matched with the heat conduction strip, the edge of one side of the anti-abrasion tile body is fixedly connected with a first connecting strip, the edge of the other side of the anti-abrasion tile body is fixedly connected with a second connecting strip, and the surface of the side, close to the anti-abrasion tile body, of the first connecting strip is provided with a first welding groove. According to the anti-abrasion tile, heat of the anti-abrasion tile body can be conducted out, the temperature of the anti-abrasion tile body is reduced, and the service life of the anti-abrasion tile body is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant tile technology, specifically a heat-resistant wear-resistant tile for fluidized bed boilers. Background Technology

[0002] Fluidized bed boilers, especially circulating fluidized bed boilers, play an important role in China's coal-fired power generation and are also widely used in industries such as petroleum, petrochemicals, metallurgy, and papermaking. Wear-resistant tiles are mainly used on the windward side of the heating surface tubes of boilers such as superheaters, reheaters, economizers, and water-cooled wall pipes to reduce pipe wear and increase the service life of the heating surface tubes.

[0003] Currently, existing wear-resistant tiles are subjected to a large amount of material flue gas during use, resulting in severe wear. Secondly, wear-resistant tiles are generally welded onto pipes piece by piece, which makes the weld seams of adjacent wear-resistant tiles prone to cracking under the high temperature inside the boiler, causing the wear-resistant tiles to fall off. Utility Model Content

[0004] The purpose of this invention is to provide a heat-resistant and wear-resistant tile for fluidized bed boilers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-resistant and wear-resistant tile for fluidized bed boilers, comprising a wear-resistant tile body, wherein a plurality of flow guide grooves are formed on the surface of the wear-resistant tile body, the flow guide grooves are integrally stamped and formed by the wear-resistant tile body, and a heat-conducting strip is formed on one side of the flow guide grooves. A heat-resistant plate is fixedly connected to the inner side of the wear-resistant tile body, and a groove matching the heat-conducting strip is formed on the side of the heat-resistant plate near the wear-resistant tile body.

[0006] As a further preferred embodiment of this technical solution, a first connecting strip is fixedly connected to one edge of the wear-resistant tile body, and a second connecting strip is fixedly connected to the other edge of the wear-resistant tile body.

[0007] As a further preferred embodiment of this technical solution, a first welding groove is provided on the surface of the first connecting strip near the wear-resistant tile body, and a first slot is provided on the side of the first connecting strip, the first slot communicating with the first welding groove.

[0008] As a further preferred embodiment of this technical solution, an arc-shaped plate is fixedly connected to one end of the wear-resistant tile body, a second slot is provided at the other end of the wear-resistant tile body, and a second welding groove is provided on the surface of the wear-resistant tile body near the second slot, and the second slot communicates with the second welding groove.

[0009] As a further preferred embodiment of this technical solution, the first connecting strip, the second connecting strip, and the arc-shaped plate are all integrally stamped and formed from the wear-resistant tile body.

[0010] As a further preferred embodiment of this technical solution, the wear-resistant tile body is made of alumina ceramic material, and the heat-resistant plate is made of silicon carbide material.

[0011] This utility model provides a heat-resistant and wear-resistant tile for fluidized bed boilers, which has the following beneficial effects:

[0012] (1) This utility model reduces the impact on the surface of the wear-resistant tile body by opening the flow channel, and then conducts the heat of the wear-resistant tile body through the heat conduction strip and heat-resistant plate, thereby reducing the temperature of the wear-resistant tile body and effectively extending the service life of the wear-resistant tile body.

[0013] (2) The present invention splices adjacent anti-wear tile bodies together and then welds them together to form a whole. The weld seam is filled by the second connecting strip and the arc plate to prevent it from cracking under high temperature. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the heat-conducting strip structure of this utility model;

[0016] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model;

[0017] Figure 4 This is a schematic diagram of the second slot structure of this utility model.

[0018] In the figure: 1. Anti-wear tile body; 2. Guide groove; 3. Heat-resistant plate; 4. First connecting strip; 5. Arc plate; 6. Heat-conducting strip; 7. First welding groove; 8. First slot; 9. Second welding groove; 10. Second connecting strip; 11. Second slot. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown in this embodiment, a heat-resistant and wear-resistant tile for a fluidized bed boiler includes a wear-resistant tile body 1. Several guide grooves 2 are formed on the surface of the wear-resistant tile body 1. The guide grooves 2 are integrally stamped and formed by the wear-resistant tile body 1. A heat-conducting strip 6 is formed on one side of the guide grooves 2. A heat-resistant plate 3 is fixedly connected to the inner side of the wear-resistant tile body 1. A groove matching the heat-conducting strip 6 is formed on the side of the heat-resistant plate 3 near the wear-resistant tile body 1. The inner wall of the guide groove 2 is arc-shaped, which can buffer and guide the flue gas in the boiler, reducing its impact on the surface of the wear-resistant tile body 1. Furthermore, the heat-conducting strip 6 formed by the guide groove 2 can increase the contact area between the wear-resistant tile body 1 and the heat-resistant plate 3, which can quickly transfer heat.

[0021] The wear-resistant tile body 1 is made of alumina ceramic, and the heat-resistant plate 3 is made of silicon carbide. Due to the material properties, the wear-resistant tile body 1 has the characteristics of high hardness, high temperature resistance, and wear resistance, which can meet the usage requirements in the boiler. Due to the material properties, the heat-resistant plate 3, combined with the thermal conductivity of the wear-resistant tile body 1 itself, can quickly conduct heat out, and the heat is carried out by the boiler pipes, which can reduce the temperature of the wear-resistant tile body 1 and improve its service life.

[0022] like Figure 1 and Figure 3 As shown, a first connecting strip 4 is fixedly connected to one edge of the anti-wear tile body 1, and a second connecting strip 10 is fixedly connected to the other edge of the anti-wear tile body 1.

[0023] The surface of the first connecting strip 4 near the wear-resistant tile body 1 is provided with a first welding groove 7, and the side of the first connecting strip 4 is provided with a first slot 8. The first slot 8 is connected to the first welding groove 7, and the left and right adjacent wear-resistant tile bodies 1 are connected. The second connecting strip 10 can be inserted into the first slot 8 and then welded through the first welding groove 7, so that the second connecting strip 10 is welded into the first slot 8, thereby fixing the left and right adjacent wear-resistant tile bodies 1.

[0024] like Figure 1 and Figure 4 As shown, an arc-shaped plate 5 is fixedly connected to one end of the wear-resistant tile body 1, and a second slot 11 is provided at the other end of the wear-resistant tile body 1. A second welding groove 9 is provided on the surface of the wear-resistant tile body 1 near the second slot 11. The second slot 11 is connected to the second welding groove 9, and the upper and lower adjacent wear-resistant tile bodies 1 are connected. The arc-shaped plate 5 can be inserted into the interior of the second slot 11, and then the arc-shaped plate 5 can be welded to the second slot 11 through the second welding groove 9, so that the upper and lower adjacent wear-resistant tile bodies 1 are fixed to form a whole, reducing the gap at the weld and improving the structural strength at the weld.

[0025] The first connecting strip 4, the second connecting strip 10, and the arc plate 5 are all integrally stamped into the anti-wear tile body 1. As it is an integrally stamped structure, it can improve the overall strength and rigidity of the anti-wear tile body 1.

[0026] This utility model provides a heat-resistant and wear-resistant tile for fluidized bed boilers. The specific installation process is as follows: To connect the left and right adjacent wear-resistant tile bodies 1, a second connecting strip 10 can be inserted into the first slot 8, and then welded through the first welding groove 7 to fix the left and right adjacent wear-resistant tile bodies 1. To connect the upper and lower adjacent wear-resistant tile bodies 1, an arc-shaped plate 5 can be inserted into the second slot 11, and then welded through the second welding groove 9 to fix the upper and lower adjacent wear-resistant tile bodies 1. Thus, the upper, lower, left and right wear-resistant tile bodies 1 form a whole, which reduces the gap at the weld and improves the structural strength at the weld.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-resistant wear plate for fluidized bed boilers, comprising a wear plate body (1), characterized in that: The surface of the anti-wear shoe body (1) is provided with a plurality of flow guide grooves (2), the flow guide grooves (2) are integrally punched and formed on the anti-wear shoe body (1), and the flow guide grooves (2) form a heat conduction strip (6) on one side of the anti-wear shoe body (1), the inner side of the anti-wear shoe body (1) is fixedly connected with a heat-resistant plate (3), and the heat-resistant plate (3) is provided with a groove matched with the heat conduction strip (6) on the side close to the anti-wear shoe body (1).

2. A heat-resistant anti-abrasion tile for fluidized bed boilers according to claim 1, characterized in that: The edge of one side of the anti-wear shoe body (1) is fixedly connected with a first connecting strip (4), and the edge of the other side of the anti-wear shoe body (1) is fixedly connected with a second connecting strip (10).

3. A heat-resistant anti-abrasion tile for fluidized bed boilers according to claim 2, characterized in that: The surface of the side close to the anti-wear shoe body (1) of the first connecting strip (4) is provided with a first welding groove (7), the side edge of the first connecting strip (4) is provided with a first insertion groove (8), and the first insertion groove (8) is communicated with the first welding groove (7).

4. A heat-resistant anti-abrasion tile for fluidized bed boilers according to claim 1, characterized in that: One end of the anti-wear shoe body (1) is fixedly connected with an arc-shaped plate (5), the other end of the anti-wear shoe body (1) is provided with a second insertion groove (11), the surface of the end close to the second insertion groove (11) of the anti-wear shoe body (1) is provided with a second welding groove (9), and the second insertion groove (11) is communicated with the second welding groove (9).

5. A heat-resistant anti-abrasion tile for fluidized bed boilers according to claim 2, characterized in that: The first connecting strip (4), the second connecting strip (10) and the arc-shaped plate (5) are integrally punched and formed on the anti-wear shoe body (1).

6. A heat-resistant anti-abrasion tile for fluidized bed boilers according to claim 1, characterized in that: The anti-wear shoe body (1) is made of alumina ceramic material, and the heat-resistant plate (3) is made of silicon carbide material.

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